Tool connector, machine with said tool connector and method of connecting machine connector with working tool connector

FIELD: machine building.

SUBSTANCE: proposed connector comprises retainer for attachment of working tool to the machine. Said retainer comprises retaining element and safety element. Said retaining element can displace from free position into locked position and vice versa. Safety element can displace retaining element from free position to locked position. At least, two hydraulic joints to be jointed together to make working fluid channel between the working tool pressurised fluid main line channel and machine pressurised fluid main line channel. There is a drive to displace said retaining element from free position to locked position and to drive, at least, one of said two hydraulic joints to connection with the other hydraulic joint. Said drive is separated from the main pressurised working fluid main line. Machine comprises above described connector. In compliance with proposed method, working tool is attached to the machine so that hydraulic joints are leveled. Attachment by means of retainer including retaining element an safety element. Said safety element displaces retaining element from free position to locked position at pressure decreased by aforesaid drive and vice versa. Said drive displaces said retaining element from free position to locked position and to drive, at least, one of said two hydraulic joints to connection with the other hydraulic joint.

EFFECT: higher efficiency.

15 cl, 6 dwg

 

The technical field to which the invention relates.

The present invention relates to a connecting device, in particular to the connecting device for attaching a working tool to a machine.

The level of technology

A working tool, such as knives, clamps or buckets, often attached to the lifting machinery, such as excavators, to perform working operations such as cutting, grasping, or excavation. Tools can be attached to the boom or beam lifting mechanism of the machine through a fixed connection or connection quick disconnect. The latter allows to perform relatively easy replacement of the working tool, the operator can attach or replace work tools without leaving the cab. Mounting bracket machine is designed to move in a mounting bracket of the working tool, when the working tool is located on the ground. After alignment of the installation bracket of the working tool and mounting bracket machine locking wedge or finger can be moved into a locked position for securing the working tool to the machine.

While joining a work tool to the machine must be attached hydraulic hoses main line of fluid on the pressure for driving the working tool. Known automatic system for attaching hydraulic hoses, when the operator from the cab can activate connection of hydraulic hoses. Such systems are often designed for the connection of the working tool to the car, when provided by the connector hydraulic hose designed so that during connection of the working tool of the machine also automatically connected the hose connectors. During the movement of the installation bracket of the working tool in a mounting bracket of the machine at the same time can join the hose connectors. However, it has been found that the alignment of the connectors hoses may require a higher level of accuracy than when the alignment of the mounting brackets. In practice, when the connecting structure equipped with a connector hose, the operator can try to prevent a relatively sharp movements and the emergence of large efforts, which are typical for attaching a working tool to a machine. This can lead to reduced efficiency or to perform a connection may only require experienced operators. Relatively high risk of damage to connectors, hydraulic hose because there will be a large effort and inaccurate alignment set is cnyh brackets. If the hose connectors are aligned accurately, may occur leakage of working medium under pressure or may need to replace the connectors and/or hoses. Because hydraulic lines, lifting machines can be operated at relatively high pressures, leakage can cause significant pouring the working environment and long stop equipment.

A connecting device for connecting two ends of a line of the working environment under the pressure of the working tool and machine is described in European patent application EP 1388616. The connecting device includes a mounting bracket quick disconnect for connecting a work tool to the machine. The connecting device includes receiving hydraulic connector and movable hydraulic connector, each connector is connected with the hydraulic hose main hydraulic lines. One of the connectors located on the working tool, and the other connector is located on the machine. Both connectors can be connected to each other to form the channel of the working medium between the hydraulic hoses so that the working medium under pressure can circulate in the main hydraulic line. Mobile hydraulic connector is connected with a hydraulic drive. The actuator moves the movable guy who replicase connector for receiving hydraulic connector and from him. The actuator is connected to and driven by the main hydraulic line, which is primarily intended for driving a working tool and, thus, performs control at relatively high pressure. Because the actuator is driven by the main hydraulic lines, the hydraulic pressure line exceeds the pressure required to actuate the hydraulic actuator to move the hydraulic connector. For this reason can easily be corrupted. In addition, during displacement connector for connecting hydraulic lines hydraulic hoses can wedge themselves, catch or be caught in machine design and/or the working tool or between them.

Disclosure of inventions

According to the first aspect of the present invention relates to a connecting device for attaching a working tool to a machine. The connecting device has a retaining structure for mounting a work tool to a machine. The connecting device also has at least two hydraulic connector intended for connection to each other to form a channel of the working environment between the channel of the main line of the working environment under the pressure of the working tool and the channel of the main line is the working environment under the pressure of the machine. In addition, provided a driving device for actuating at least one hydraulic connector for connection with other hydraulic connector, while the drive unit is separated from the main line of the working environment under pressure.

According to another aspect of the present invention relates to a method of connection of the hydraulic connector, hydraulic connector of the working tool. The method includes mounting a work tool to the machine, so that the hydraulic connectors are aligned with each other. The method also includes moving at least part of one of the hydraulic connector with the drive device, separated from the main line of the working medium under pressure, in the direction of another hydraulic connector. The method further includes the formation of a working channel environment between the hydraulic connector of the machine and the hydraulic connector of the working tool.

Brief description of drawings

Figure 1 is a side view on a machine and work tool, equipped with a coupling device.

Figure 2 is a perspective view of the connecting device before locking.

Figure 3 is a perspective view in section of the connecting device of Figure 2.

4 is a perspective view in resizedialog device of Figure 2 and 3, which blocked the connecting device and aligned hydraulic connectors.

5 is a perspective view in section of the connecting device of Figure 2, 3 and 4, which blocked the connecting device and connected to the hydraulic connectors.

6 is a sequence of operations according to the method of joining a work tool to a machine.

The implementation of the invention

Figure 1 shows an example of a machine that may be lifting machine 1. Machine 1 may be a mobile machine such as an excavator, digging machine with reverse shovel, ditcher, truck, truck, articulated boom, the harvesting machine or harvesting machine. Machine 1, shown in the exemplary embodiment in figure 1, is a hydraulic excavator equipped with arrow 2, in particular, the hydraulic boom for actuating the boom 2 and/or the working tool 3. The working tool 3 can be connected to the machine 1, in particular, arrow 2. In the shown exemplary embodiment, the working tool 3 includes a rotary cutter. In other variants of execution used tools 3, for example, may include cutters, drills, buckets, blades, road brush, cold planners, seals, choppers, lift achvity, grapplers, strikers, bunkers, rippers, universal tools, shredders, scrapers, stinger boards, cutting devices, tractors, knives, planes, crushers, poverty, openers and the like, for Example, the tool 3 can include a frame on which is mounted a variety of removable and/or interchangeable tools. In the exemplary embodiment the working tool 3 may contain the tool 3 for demolition of structures or, at least, a working tool 3 for severe duty applications.

Machine 1 may be equipped with a coupling device 4. The connecting device 4 may include a mounting bracket 5 of the machine and mounting bracket 6 of the working tool. Mounting bracket 5 of the machine can be connected to the machine 1. Mounting bracket 6 of the working tool can be connected with the working tool 3. Mounting brackets 5, 6 are designed to connect with each other. If the installation brackets 5, 6 are connected with the machine 1 and the working tool 3, respectively, this may allow you to connect the working tool 3 arrow 2 through the control shaft 2 from the cabin.

Node 7 with a working medium under pressure may continue along the arm 2 to move the arrow 2 and tool 3. The end node 7 with a working medium under pressure may be attached keychain, four button the flax to the installation bracket 5 of the machine. Node 7 with a working medium under pressure can be used to hide and extension relative to the boom 2 to move the working tool 3.

Node 7 with a working medium under pressure may form part of the main line of the working medium under pressure for actuation of the boom 2 and the working tool 3. The main line of the working medium under pressure may continue in the boom 2 and the working tool 3 and/or along them, so that the working tool 3 or its components could perform working operations. The main plot line of the working medium under pressure may continue in the machine 1 and/or along it. The second section of the main line of the working medium under pressure may continue in the working tool 3 and/or along it. The main line of the working medium under pressure may contain hydraulic line. The main line of the working medium under pressure can be supplied with a pump for driving the movement and circulation of the working medium in the line. The main line of the working medium under pressure may be intended for the propulsion of the working environment at relatively high pressure and flow rate, for example, approximately 150 liters per hour, or at least about 250 liters per hour, for example, approximately 300 litres per hour. The main line of the working medium under pressure may contain channels for directed what I'm working environment under pressure. Channels to the working environment may contain, at least partially flexible hoses.

As shown in figure 1, arrow 2 can be connected with the adjusting arm 5 of the machine through the first finger 8. The first finger 8 may also be referred to as the finger lever. Node 7 with a working medium under pressure may be connected to the mounting bracket 5 of the machine through a second finger 9. The second finger 9 can also be called power connector finger.

Figure 2 shows the connecting device 4. The connecting device 4 may contain the node mounting brackets 5, 6. The upper part of the connecting device 4 may include a mounting bracket 5 of the machine. The lower part of the connecting device 4 may include a mounting bracket 6 of the working tool. Node mounting brackets 5, 6 can contain flanges 10 for connection of the installation bracket 5 with the end of the boom 2 and node 7, the working medium under pressure through the use of the first and second fingers 8, 9, respectively. The flanges 10 may be provided with axial holes 11, 12. Hole 11, in which is installed the first finger can serve as bearings for supporting the first finger 8. The first finger 8 may form a swivel axis which is rotatable working tool 3 with respect to the boom 2. Hole 12, which is set to the second finger, can serve as pillars to support the second finger 9, to node 7 with a working medium under pressure could result in the movement of the working tool 3 for rotation relative to the boom 2 around the first finger 8.

The connecting device 4 can be equipped with a locking device 13. The retaining device 13 may be designed to connect the installation bracket 5 machine installation bracket 6 of the working tool with the aim of integrating the working tool 3 of the machine 1. The retaining device 13 can contain inserts 14, 15 on one installation bracket 5 and the respective elements 16, 17 for placing the inserts in the other mounting bracket for connecting mounting brackets 5, 6. Mounting bracket 5 of the machine can be equipped with four inserts 14, 15. Mounting bracket 6 of the working tool can be equipped with four elements 16, 17 to accommodate the above inserts 14, 15. Mounting bracket 6 of the working tool may include two opposite flange 18, which are the elements 16, 17 to accommodate the inserts. Each flange 18 can contain two elements 16, 17 to accommodate two inserts 14, 15. The elements 16, 17 to accommodate inserts may contain cut-outs and/or rukovena parts, etc. along the edges of the flanges 18. First vstavki can be designed to connect with the elements 16 to accommodate the first inserts. The first insert 14 can be located in the bracket 5 of the machine near the holes 11 for placing the first finger and/or are located at a distance from the opening 12 to accommodate the second finger. Item 16 for placing the first inserts 14 may be kryukovoy form to allow lifting of the working tool 3 from the earth, when it is attached with the first inserts elements 14 and 16 to accommodate the first inserts. The second insert 15 can be designed to connect with the elements 17 for placing second inserts. The second insert 15 can be located next to the holes 12 for placing the second finger and/or on the distance from the holes 11 for placement of the first finger. The second insert 15 can be placed on the side where the node 7, the working medium under pressure may be connected to the mounting bracket 5 of the machine. The elements 17 for placing second inserts may contain notches in the flanges 18 or installation bracket 6 for a working tool for placing second inserts 15.

The retaining device 13 may be further provided with a locking element 19, which is designed to move between the locked position and the unlocked position. The locking element 19 may be provided in the installation bracket 5 of the machine. The locking element 19 may be used in the movement and lowering relative to the installation bracket 5 of the machine. In the shown embodiment, the locking element 19 may include a rod. In other variants perform the locking element 19 may include a rod, hook, wedge, etc. the Locking element 19 may be designed to hold the brackets 5, 6 in the locked state after connection of the brackets 5, 6 and can prevent accidental unlocking of the brackets 5, 6. The retaining device 13 can optionally contain one or more items 20 to accommodate the locking element 19 in the locked position. The elements 20 to accommodate the locking element can be provided in the installation bracket 6 to the working tool. The elements 20 to accommodate the locking element can contain cut-outs and/or rukovena elements. The elements 20 to accommodate the locking element can be located in the flanges 18 of the mounting bracket 6 of the working tool. The elements 20 to accommodate the locking element can be located next to items 17 to accommodate the second inserts.

The retaining device 13 can be provided with a safety element, which may be designed for holding the locking element 19 in the locked position, when the drive unit will ease the pressure and/or fails. The safety element may contain the UE is why element, for example, a cylindrical spring that holds and/or presses the locking element 19 in the locked position in the element 20 to accommodate the locking element.

The retaining device 13 can be provided with a driving device for moving the locking element 19 between the locked and unlocked positions. The driving device may contain a node with a working medium under pressure, which is separated from the master node to the working environment under pressure. Drive unit may have a significantly lower pressure working medium under pressure than the main line of the working environment under pressure. Drive unit for driving the locking element 19 may be designed to actuate the working environment at a cost of approximately 3-50 liters per minute or approximately 7-30 liters per minute, for example, approximately 10 to 15 liters per minute. For other options run drive unit may include a rotary or linear motor, pneumatic actuator, a manual actuator, or another type of drive device. Retainer 13 and the drive unit can be designed to move the locking element 19 from the locked position to the unlocked position against the force of the safety element. Retainer 13 m which may be positioned so that the locking element 19 can move in the direction of the locked position due to the efforts of the safety member, the actuator may be designed to drop the pressure to ensure such a move.

The connecting device 4 may be further provided with at least two hydraulic connectors 21, 22, which are designed to connect with each other to form a flow channel for the main line of the working medium under pressure between the machine 1 and the working tool 3. Hydraulic connectors 21, 22 can be located so that the ends of the channels to the working environment of the main line of the working environment under pressure machines can be connected to the ends of the channel to the working environment of the main line of the working environment under the pressure of the working tool 3. The first hydraulic connector 21 can be located in the installation bracket 5 of the machine. The second hydraulic connector 22 can be located in the installation bracket 6 of the working tool. The first hydraulic connector 21 can be still connected with the first channel to the working environment of the node 7 of the working environment under pressure. The second hydraulic connector 22 can be still connected with the second channel to the working environment of node 7 working Sadyrbaev tool 3. The second channel of the working environment may continue along the working tool 3 and/or in it. Channels to the working environment may include hoses for directing the working medium under pressure.

Figure 2 shows one pair of hydraulic connectors 21, 22 to form the channel of the working environment the main line of the working environment under pressure. In practice, it may be many pairs of hydraulic connectors 21, 22 for the formation of one or more channels of the working environment, ongoing between machine 1 and the working tool 3, so that the working environment could move from machine 1 to the working tool 3 and the working tool 3 to the machine 1.

Hydraulic connectors 21, 22 can be placed in the proper installation of the brackets 5, 6. The first hydraulic connectors 21 may be located between the flanges 10 of the installation bracket 5 of the machine. The second hydraulic connectors 22 may be located between the flanges 18 of the mounting bracket 6 of the working tool. For other options run the installation brackets 5, 6 can contain frames, and hydraulic connectors 21, 22 can be placed in frames and/or between them. According to another variant the execution of the connecting device 4 may be designed to connect the hydraulic connectors 21, 22, which can bytsvetelina directly with the machine 1 and the working tool 3, respectively.

At least one of the hydraulic connectors 21, 22 may be at least partially movable relative to the corresponding channel line with the working environment for connecting with a corresponding hydraulic connector 21, 22. The first hydraulic connector 21 can contain retractable hydraulic connector 21. The second hydraulic connector 22 may include receiving a hydraulic connector to accommodate the movable part of the first retractable hydraulic connector 1. Alternatively, the first hydraulic connector 21 can include receiving hydraulic connector, and the second hydraulic connector 22 can include retractable hydraulic connector.

For actuating the movable part of the hydraulic connector may be provided for driving the device. Drive unit can be designed to actuate the movable part of the hydraulic connector only when the brackets 5, 6 are locked relative to each other so that the connectors 21, 22 can be properly aligned prior to their connection. Drive unit for actuating the hydraulic connector 21, 22 can be separated from the main line of the working environment under pressure. Drive unit for driving the dei is a journey of the movable part of the hydraulic connector can also be designed to actuate the locking element 19. Drive unit may include a second line of working medium under pressure, which is separated from the main line of the working environment under pressure. Alternatively, the drive unit may include a rotary or linear motor, pneumatic actuator, a manual actuator, or another type of drive device.

Drive unit for actuating the hydraulic connector 21, 22 and/or the locking element 19 may be designed to actuate the working environment at relatively low pressure compared to the main line of the working environment under pressure. Drive unit can be designed to actuate the working environment with a flow rate of approximately 3-50 liters per minute or approximately 7-30 liters per minute, for example, approximately 10 to 15 liters per minute. Pressure and/or flow rate of the drive device can be similar to the pressure and/or flow rate, which is used in the hydraulic actuators of the General type. The driving device may include a hydraulic line.

Figure 3 shows a view in section of node of Figure 2. As shown in the figure, the first hydraulic connector 21 can contain retractable hydraulic connector. Retractable hydraulic connector may include a guide section 23 and the piston 24. Both plots 23, 24 may have a cylindrical Fort is at. The guide section 23 and the piston 24 may have a common centerline. In the first hydraulic connector 21 may be provided in the first channel 25 of the working environment. The first hydraulic connector 21 can go through the guide section 23 and/or the piston 24. The first channel 25 of the working environment may continue through the center through the guide section 23 and the piston 24 along the Central axis. The guide section 23 may be intended for the direction of the piston 24 along the Central axis. The piston 24 may be advanced relative to the guide section 23. The guide section 23 may be provided with a connecting element 26 for connecting the first channel 25 of the working environment with the channel of the working environment the main line of the working environment under pressure. The piston 24 may be designed to move relative to the channel line with the working environment.

At the far end of the piston 24 may be provided in the piston valve 27, which may overlap the first channel of the working environment when it is not connected with the receiving connector of the working medium under pressure, to prevent spillage of the working environment. The piston valve 27 may be connected with an appropriate adoptive valve 28 of the second hydraulic connector. The piston valve 27 can contain covered or covering element for interaction with a covering or presence covers the first element, accordingly, the intake valve 28 for receiving pressurized hydraulic connection between the channels to the working environment under the pressure of the working tool 3 and the machine 1. The valves 27, 28 can contain valves DRY BREAK. The valves 27, 28 can be designed to prevent spillage of the working environment during connection of the first and second hydraulic connectors 21, 22 at relatively high pressures of the working environment in the main line of the working environment under pressure.

The piston 24 may have a tapered end 29 to align with the second hydraulic connector 22. The second hydraulic connector 22 may include a receiving hole 30 to accommodate the piston 24. The tapered end 29 may be intended for the direction and alignment of the piston 24 relative to the inlet opening 30 of the second hydraulic connector 22 for the purpose of connecting the valve 27 of the piston 24 and valve 28 of the second hydraulic connector 22.

The second hydraulic connector 22 may be provided with a second channel 31 working environment along its centerline. At the end of the second channel 31 of the working environment can be provided for receiving a valve 28 for engagement with the piston valve 27. The piston valve 27 and/or the intake valve 28 can prevent the splashing of the working environment under pressure and can be known in this technical field as CL the pan DRY BREAK in the collection.

The receiving hole 30 of the second hydraulic connector 22 may be approved for directions and/or partial placement of the piston head 24 at the time of connection. The receiving hole 30 may have an axial line which is shared with the axial line of the second hydraulic connector 22. The second hydraulic connector 22 may include a connecting element 32 for connection of the second channel 31 of the working environment of the second hydraulic connector 22 with the corresponding channel line environment under pressure.

At least one of the connectors 21, 22 may be provided with a cover 33 for closing the end of the respective connector 21, 22. The cover 33 may be designed to close the end of the first and/or second channel 25, 31 of the working fluid at least when the connectors 21, 22 are disconnected from each other. The cover 33 may be designed to close the corresponding valve 27, 28, at least when the connectors 21, 22 are disconnected from each other. As shown, the second hydraulic connector 22 may be provided with such a cover 33. Similarly, the first connector 21 may be provided with a cover 33.

The cover 33 may mechanically operate by moving at least part of the connecting device 4. The cover 33 may be moved by moving one of the soya is initely 21, 22 relative to another connector 22, 21. The cover 33 may include a slider that is designed to move in the direction of the end of the respective connector 21, 22. The cover 33 may be designed to move in the direction of the first connector 21 when the connectors 21, 22 are moved toward each other so that it is moved away from the corresponding end of the second connector 22. The cover 33 may be designed to move in the direction with the piston 24 when the piston 24 is moved to the second connector 22. Alternatively, the first connector 21 can contain a prong or finger, which moves the cover 33 when the movable part moves to the second connector 22. Prong or finger can move the cover 33 in an open position, while the connectors 21, 22 are moved toward each other. The cover 33 may be provided with an elastic element, so that after separation of the connectors 21, 22 of the cover 33 can move due to the elastic displacement of one installation of the brackets 5, 6 relative to another installation of the bracket 6, 5.

Figure 4 shows a view in section of the connecting device 4 in the locked position. The working tool 3 can be attached to the machine 1, if the inserts 14, 15 are arranged in the respective elements 16, 17 for placement of inserts, and the locking element 19 is blocked list the m position. Hydraulic connectors 21, 22 can be aligned with each other, if the working tool 3 is attached to the machine 1, so that the connectors 21, 22 could be connected to each other. Hydraulic connectors 21, 22 can be aligned so that the movable connector can be connected to the receiving connector due to the essentially linear motion rolling connector.

Figure 5 shows a view in section of the connecting device 4 in a locked state with the United hydraulic connectors 21, 22. In the United state of the connectors 21, 22 of the first connector 21 can be extended so that the piston 24 is located in the receiving hole 30 of the second connector 22, while the guide section 23 and the channel line of the working fluid connected to the first connector 21, could remain in place. In the United state, the valves 27, 28 can be connected in such a way as to ensure formation of the channel of the working environment through the valves 27, 28. In the United state of the connectors 21, 22, the working medium under pressure can centrally through hydraulic connectors 21, 22.

Industrial applicability

In General, the tools 3 are used for handling heavy materials. For example, tools 3 can destroy, dig up, punching,shearing, to capture and/or move heavy materials, which may include sand, stone, metal, etc. tools 3 can be connected to machines 1 and to operate with the help of these machines, in particular, using a mobile load-lifting machines. For driving the working tool 3, the machine 1 may be equipped with gear mechanisms, hydraulic equipment, shafts 2 and/or rods. Managing the operations of the working tool may implement the operator using the control panel in the cabin of the vehicle 1. Mounting brackets 5, 6 can provide the connection and fastening of the working tool 3 to the machine 1 without the need of the operator from the cab. Hydraulic connectors 21, 22 can provide the connection channels to the working environment of the machine 1 and channel line of the working environment the working mechanism 3 for the formation of a channel of the working environment. In the United state, the working medium can flow through the channels to the working environment and the connectors 21, 22 with expenditures of at least about 150, or at least about 250 liters per minute, to control relatively heavy tool.

To obtain a relatively accurate and reliable sealed hydraulic connection between the movable part of the connectors 21, 22 may cause the I in motion by means of a separate drive device separately from the main line of the working medium under pressure at a pressure which may be adapted to actuate movable connector 21. Thus, the displacement control at least one of the connectors 21, 22, or part of one of the connectors 21, 22 may be more effective. In addition, with the weakening of the pressure in the main line of the working medium under pressure in case of failure of a separate drive unit can remain in working condition, so that the hydraulic connectors 21, 22 could remain in the United or at least a healthy state.

With reference to the exemplary sequence of operations from 6 in the first stage 100 of the connection of the first hydraulic connector 21 with the second hydraulic connector 22 machine 1 can be aligned with the working tool 3. Arrow 2 can be moved so that the mounting bracket 5 of the machine are aligned with the mounting bracket 6 of the working tool. The first insert 14 installation bracket 5 machines can be inserted into the elements 16 to accommodate the first inserts installation bracket 6 of the working tool. Next, a mounting bracket 5 of the machine can be rotated around the first of the inserts 15 and until the second insert 15 installation bracket 5 machines will not be placed in items 17 to accommodate the second inserts installation crosta the 6 working tool. Mounting bracket 5 of the machine can navigate through node 7 working fluid under pressure.

In the second stage 101 working tool 3 can be attached to the machine 1. The locking element 19 can be moved to a locked position in which it abuts against the elements 20 to accommodate the locking element. The locking element 19 can be activated in the locked position when both of the inserts 14, 15 are placed in the respective elements 16, 17 to accommodate inserts, respectively. The locking element 19 can be driven by using the drive device. Alternatively perform the locking element 19 can be moved into a locked position due to the efforts of the safety member, the driving device may drop the pressure, so that the safety element is moved or took away the locking element 19 in the locked position. If the working tool 3 is attached to the machine 1, the hydraulic connectors 21, 22 can be aligned relative to each other.

In the third stage 102 hydraulic connectors 21, 22 can be connected to form the channel of the working environment between the channels of the working environment the working tool and the channels of the working environment of the machine, while the channels are part of the main line of the working environment under pressure. According to the Shen 24 of the first connector 21 can continue to the second connector 22. The piston 24 of the first connector 21 can operate the drive unit. The piston 24 may operate in the receiving hole 30 of the second hydraulic connector 22. The tapered end 29 of the piston 24 can guide the piston in the receiving hole 30 so that the piston valve 27 and the intake valve 28 could be connected. The valves 27, 28 may be assembled in such a way that between the first channel 25 of the working environment and the second channel 31 of the working environment was formed tight channel of the working environment. During displacement of the valve 24 channels to the working environment, which are connected to respective connectors 21, 22 can remain in a static position, at least relative to the installation of the brackets 5, 6. The piston 24 may continue in the direction from the guiding section 23 and the first channel to the working environment, is attached by means of a connecting element 26.

Before connecting the working tool 3 machine 1 and the cover 33 can close the corresponding end of at least one of the connectors 21, 22 to prevent the ingress of dust and/or particles, polluting appropriate valves 27, 28. When the piston 24 is moved into the receiving hole 30, the cover 33 can be moved from the connectors 21, 22 to release the valves 27, 28. The cover 33 may be shifted in the direction of the piston 24. Cover 33 mo who should be rotated around the hinge and/or can be activated drive unit. In another variant implementation, the cover 33 can be displaced from the corresponding end of the connector when the installation brackets 5, 6 are connected.

In the fourth stage 103, the working medium can circulate through the main line of the working environment under pressure. The working medium can flow through the connectors 21, 22 from the channel line of the working fluid machine 1 to the channels of the working fluid of the working tool 3 and back to TV line fluid machine 1. The working fluid under pressure can pass through the connectors 21, 22. The working medium under pressure can pass through the hose, which form channels to the working fluid, and centrally through the connectors 21, 22, through the first working channel 25 of the first connector 21 of the working environment and through the second channel 31 of the working environment of the second connectors 22 of the working environment.

In the fifth stage 104, the working environment can result in the movement of the working tool 3 for performing working operations. The working tool 3 can perform relatively heavy operations, such as demolition.

At the sixth stage 105 connectors 21, 22 can be disconnected. During separation of the connectors 21, 22 and valves 27, 28 machine 1 and the working tool 3 can remain in a locked state relative to each other. The piston 24 can be moved away from the second connector 22 is along the axial line of the first connector 21, while the locking element 19 is still in engagement with the element 20 to accommodate the locking element. During displacement of the piston 24 the corresponding channel to the working environment may remain in a static position relative to the installation of the brackets 5, 6.

At the seventh stage 106 working tool 3 is unlocked relative to the machine 1, after the connectors 21, 22 have already been unlocked. The locking element 19 can be moved from item 20 for placement of the locking element with the drive device. After unlocking the inserts 14, 15 can be moved from the elements 16, 17 for placement of inserts, so that the working tool 3 can be detached from the machine 1. For example, the machine 1 can be attached to another working tool 3 and the above-described method with reference to 6 can be repeated.

The connectors 21, 22 can be relatively precisely aligned with each other, because the connection of the connectors 21, 22 can be performed after the connection of the working tool 3 of the machine 1. Such precise alignment can prevent the leakage of working medium under pressure and/or damage to the connectors 21, 22. In addition, due to the use of the connector 21 with the plot, retractable relative to the guide section 23, the channels of the working medium under pressure can connect napravlyaem section 23. Thus, the channels working medium under pressure may remain in the desired location, while the plot of the connector 21 is moved to connect. Thereby, it is possible to prevent possible damage to the corresponding channel of the working fluid, for example, hoses, since it avoids the repeated movement of the hoses. Since moving only one part of the hoses 21, 22 and channels to the working environment may remain in a static position, the connectors 21, 22 can be mounted on the machine 1, the working tool 3 and/or the installation brackets 5, 6 in a relatively confined space, preferably in the installation brackets 5, 6 and/or between them. Can be used the device for a relatively quick connection and/or disconnection, the connection of the working tool 3 of the machine 1, as well as connection channels to the working environment can be ensured relatively safe and effective way without the need of the operator from the cab.

Specialists in this field of technology must be understood that there may be various modifications and changes without deviating from the scope and essence of the invention. Other embodiments of the invention will become clear to experts in this field of technology from consideration of the description and application of presents from the Britania. Although there have been described preferred embodiments of the present invention can be implemented improvements and modifications without deviating from the scope of the following claims.

1. Connecting device for attaching a working tool to a machine that contains:
retaining device for attaching a work tool to a machine,
but such locking device comprises a locking element and the safety element, the locking element is arranged to move from an unlocked position to a locked and back, and the safety element may move the locking element from the unlocked position to the locked position, and
at least two hydraulic connector intended for connection to each other to form a channel of the working environment between the channel of the main line of the working environment under the pressure of the working tool and the channel of the main line of the working environment under pressure machine,
which has a drive unit for driving specified locking element from the unlocked position to the locked position, and at least one hydraulic connector for connection with other hydraulic connector, while the drive device is separated from the main line of the working environment under pressure.

2. The connecting device according to claim 1, in which the drive unit contains a line of the working environment under pressure.

3. The connecting device according to claim 2, in which the main line of the working medium under pressure is designed to control at a higher pressure than the line of the working environment under the pressure of the drive device.

4. The connecting device according to claim 1, in which a mounting bracket quick disconnect Assembly is designed for attaching a working tool to the machine, while the first mounting bracket connected with the working tool, and a second mounting bracket for connection with the first mounting bracket connected with the machine, and hydraulic connectors are designed to continue, at least partially, into the corresponding mounting bracket.

5. The connecting device according to claim 1, in which the hydraulic connectors installed with the possibility of alignment of the piston of the first hydraulic connector relative to the inlet opening of the second hydraulic connector.

6. The connecting device according to claim 1, in which at least one hydraulic connector includes a lid for closing the corresponding end of the channel of the working fluid, continuing through the connector when the hydraulic connectors disconnected.

8. The connecting device according to claim 1, in which
at least one hydraulic connector provided with a guide section and a sliding section,
retractable section is intended to continue relative to the guide section in the direction of receiving hydraulic connector
the guide section is designed for holding in a fixed position relative to the part connecting the device to which it is attached, and
canal main line working medium under pressure is connected to the guide section.

9. The connecting device according to claim 1, which feeds the working fluid continues centrally through the respective hydraulic connectors, so that during connection of the hydraulic connectors the main line of the working environment under the pressure of continued centrally through the hydraulic connectors.

10. The machine containing the connecting device according to any one of claims 1 to 9.

11. The method of connection of the hydraulic connector, hydraulic connector of the working tool, comprising:
mounting a working tool to the machine, so that hydrauli the mini-connectors are aligned with each other;
fastening with the locking device with the locking element and the safety element, with safety element moves the locking element from the unlocked position to the locked position upon release of pressure actuated device, separated from the main line of the working medium under pressure, and to allow movement of the locking element in the unlocked position;
moving at least part of one of the hydraulic connectors using the specified drive device, in the direction of another hydraulic connector, and
education channel working environment between the hydraulic connector of the machine and the hydraulic connector of the working tool.

12. The method according to claim 11, further containing moving the locking element in the locked position.

13. The method according to claim 11, additionally containing the actuation of the rolling hydraulic connector, or parts of it with the second line of the working environment under pressure.

14. The method according to claim 11, further containing a passage of working medium under pressure from the main line of the working environment under pressure from the machine to the working tool and/or Vice versa, centrally through the hydraulic connectors.

15. The method according to claim 11, further containing moving in the wheel section of one of the hydraulic connectors from the canal to the working environment, which is connected with a corresponding one of the hydraulic connectors.



 

Same patents:

FIELD: construction.

SUBSTANCE: support unit comprises the main body, having an upper end and a lower end, a hole for a shaft of a loading mechanism, stretching via the lower end of the specified main body, and two holes arranged at the distance from each other for eccentric fingers located in the specified upper end. Besides, the support unit comprises two eccentric fingers, every of which is placed into one of the specified holes, an accessory for synchronous rotation of the specified eccentric fingers and a cast item having an upper end and a lower end. At the same time on the specified lower end of the specified cast item there are upper trimming pads installed, being arranged as resting against the upper part of the bucket handle. The support unit also comprises two holes to receive threaded tubes located at the distance from each other in direction of handle displacement, two threaded tubes, every of which is inserted into one of the specified holes for receiving the tube, an accessory for rotation of the specified tubes and an accessory for fixation of the specified tubes. Besides, on each of the specified threaded tubes there are trimming pads installed.

EFFECT: reduced labour intensiveness and time for maintenance and extended service life of support unit assemblies.

12 cl, 7 dwg

FIELD: construction.

SUBSTANCE: snap-change device for fixation and forced leading, with automatic connection of tools with force closure to bearing implements and excavators includes one part of snap-change device, for instance fixture, where aligning disks are attached on fishing pins or in comparable centre of rotation across their axis. Aligning disks, at least partially, have curved, angular or straight peripheral line, which is distanced differently from axis of fishing pins. On mating part of snap-change device, for instance tool holder, there is at least one control plate attached, which enters zone of aligning disk motion, and curved peripheral line of aligning disk moves along its surface in process of entering. Shape and location of aligning disk relative to control plate are selected with the possibility of complete force or geometrical closure of snap-change device due to rotation around fishing pins only when they have achieved the lowest point in fishing hook.

EFFECT: prevention of warp or inclined position of snap-change device, damages in process of connection.

8 cl, 7 dwg

FIELD: machine building.

SUBSTANCE: invention is related to the field of machines intended for performance of earth and loading works, namely to machines such as single-bucket hydraulic diggers. Bearer frame of loader-digger working equipment comprises longitudinal beams with elements of bearer frame fixation on tractor, cross beams that are rigidly connected to longitudinal beams, bracket installed on upper bases of longitudinal beams with lugs that have openings in bushings for installation of rotary column of excavator equipment and hydraulic cylinders of its rotation, and brackets for installation of outriggers and hydraulic reservoir. Bracket is arranged from two vertical sides installed at the angle to each other, between which lugs are installed. Base of the lower lug is located on the same vertical level with lower edges of sides and is rigidly connected to upper bases of longitudinal beams, and also by means of two ribs with side surface of cross beam. Upper and middle lug are connected with rib, which is rigidly fixed to lower plane of upper lug and its bushing, and on the other side - with upper plane of middle lug in zone of openings for hydraulic cylinders of column rotation, at that bent sheet stands are connected to external sides of longitudinal beams, and these stands are also connected to sides of bracket, creating rigid space structure.

EFFECT: simplification of design and technology of loader-digger bearer frame manufacturing technology, reduction of nomenclature of roller stock rigging used in bearer frame design.

6 dwg

FIELD: agriculture and mining industry, in particular, loading equipment for farm tractors.

SUBSTANCE: loader is designed for farm tractors furnished with standard hydraulically controlled, parallel lifting levers 1, 2 pivotally mounted on tractor rear part and equipped with central connection device 3 in tractor between two lifting levers. Loader has two parallel levers 5, 6 for connection to respective levers 1, 2 so as to extend rearward, generally in longitudinal direction of axes of lifting levers 1, 2. Central tie-rod 7, which may be hydraulically extended during operation, protrudes to the outside from central connection device 3, in parallel with lifting levers. Levers 5, 6 and outer end of central tie-rod 7 are adapted for connection to working tool or device 12.

EFFECT: increased efficiency owing to enabling fast mounting of working equipment onto tractor, and reduced production costs.

8 cl, 6 dwg

FIELD: building, particularly devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving.

SUBSTANCE: device comprises vibratory plate fastened to frame by means of suspension cables and hydraulic cylinder. Frame is secured to backhoe shovel handle and may be turned with respect to the handle through +/-20 angle. Frame may be used as spreader by means of iron sheets secured to side surfaces thereof and by means of ribs formed in frame corners usage. The frame may have rests for vibratory plate fixation in upper position.

EFFECT: simplified soil compaction in trench and other difficult-to-access areas.

5 cl, 2 dwg

Quick hitch // 2235829
The invention relates to a quick coupling for connection of the tool with the boom of a hydraulic excavator or similar, with part of the quick hitch on the side of the boom and part of the quick hitch on the side of the instrument can be connected to each other with fixing by means of a pair located at a distance from each other, the axes of the fixing and connection of the power circuit, in particular a hydraulic connection for auto-connect fitting of the power circuit on the side of the tool from the fitting of the power circuit on the side of the boom, the connection of the power circuit has a connecting part of the power circuit on the side of the boom and the connecting part of the power circuit on the side of the tool, which is located on part of the quick hitch on the side of the boom or on the part of the quick hitch on the side of the tool, so they are automatically connected with each other, as only two parts of the quick hitch together in a locked position when rotating around the first of the two axes commit

The invention relates to a safety device for high-speed towed device designed for securing the working tool at the end of the capture loader or similar machine

The invention relates to earth-moving machines, namely the quick-release connection of the working body with the basic machine nodes

The invention relates to a quick coupling device intended for fastening of attachments such as a bucket on the end of a working arm of a loader or similar machine

Forklift // 2143519
The invention relates to the field of earth-moving machines, equipped with replaceable working equipment

FIELD: building, particularly devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving.

SUBSTANCE: device comprises vibratory plate fastened to frame by means of suspension cables and hydraulic cylinder. Frame is secured to backhoe shovel handle and may be turned with respect to the handle through +/-20 angle. Frame may be used as spreader by means of iron sheets secured to side surfaces thereof and by means of ribs formed in frame corners usage. The frame may have rests for vibratory plate fixation in upper position.

EFFECT: simplified soil compaction in trench and other difficult-to-access areas.

5 cl, 2 dwg

FIELD: agriculture and mining industry, in particular, loading equipment for farm tractors.

SUBSTANCE: loader is designed for farm tractors furnished with standard hydraulically controlled, parallel lifting levers 1, 2 pivotally mounted on tractor rear part and equipped with central connection device 3 in tractor between two lifting levers. Loader has two parallel levers 5, 6 for connection to respective levers 1, 2 so as to extend rearward, generally in longitudinal direction of axes of lifting levers 1, 2. Central tie-rod 7, which may be hydraulically extended during operation, protrudes to the outside from central connection device 3, in parallel with lifting levers. Levers 5, 6 and outer end of central tie-rod 7 are adapted for connection to working tool or device 12.

EFFECT: increased efficiency owing to enabling fast mounting of working equipment onto tractor, and reduced production costs.

8 cl, 6 dwg

FIELD: machine building.

SUBSTANCE: invention is related to the field of machines intended for performance of earth and loading works, namely to machines such as single-bucket hydraulic diggers. Bearer frame of loader-digger working equipment comprises longitudinal beams with elements of bearer frame fixation on tractor, cross beams that are rigidly connected to longitudinal beams, bracket installed on upper bases of longitudinal beams with lugs that have openings in bushings for installation of rotary column of excavator equipment and hydraulic cylinders of its rotation, and brackets for installation of outriggers and hydraulic reservoir. Bracket is arranged from two vertical sides installed at the angle to each other, between which lugs are installed. Base of the lower lug is located on the same vertical level with lower edges of sides and is rigidly connected to upper bases of longitudinal beams, and also by means of two ribs with side surface of cross beam. Upper and middle lug are connected with rib, which is rigidly fixed to lower plane of upper lug and its bushing, and on the other side - with upper plane of middle lug in zone of openings for hydraulic cylinders of column rotation, at that bent sheet stands are connected to external sides of longitudinal beams, and these stands are also connected to sides of bracket, creating rigid space structure.

EFFECT: simplification of design and technology of loader-digger bearer frame manufacturing technology, reduction of nomenclature of roller stock rigging used in bearer frame design.

6 dwg

FIELD: construction.

SUBSTANCE: snap-change device for fixation and forced leading, with automatic connection of tools with force closure to bearing implements and excavators includes one part of snap-change device, for instance fixture, where aligning disks are attached on fishing pins or in comparable centre of rotation across their axis. Aligning disks, at least partially, have curved, angular or straight peripheral line, which is distanced differently from axis of fishing pins. On mating part of snap-change device, for instance tool holder, there is at least one control plate attached, which enters zone of aligning disk motion, and curved peripheral line of aligning disk moves along its surface in process of entering. Shape and location of aligning disk relative to control plate are selected with the possibility of complete force or geometrical closure of snap-change device due to rotation around fishing pins only when they have achieved the lowest point in fishing hook.

EFFECT: prevention of warp or inclined position of snap-change device, damages in process of connection.

8 cl, 7 dwg

FIELD: construction.

SUBSTANCE: support unit comprises the main body, having an upper end and a lower end, a hole for a shaft of a loading mechanism, stretching via the lower end of the specified main body, and two holes arranged at the distance from each other for eccentric fingers located in the specified upper end. Besides, the support unit comprises two eccentric fingers, every of which is placed into one of the specified holes, an accessory for synchronous rotation of the specified eccentric fingers and a cast item having an upper end and a lower end. At the same time on the specified lower end of the specified cast item there are upper trimming pads installed, being arranged as resting against the upper part of the bucket handle. The support unit also comprises two holes to receive threaded tubes located at the distance from each other in direction of handle displacement, two threaded tubes, every of which is inserted into one of the specified holes for receiving the tube, an accessory for rotation of the specified tubes and an accessory for fixation of the specified tubes. Besides, on each of the specified threaded tubes there are trimming pads installed.

EFFECT: reduced labour intensiveness and time for maintenance and extended service life of support unit assemblies.

12 cl, 7 dwg

FIELD: machine building.

SUBSTANCE: proposed connector comprises retainer for attachment of working tool to the machine. Said retainer comprises retaining element and safety element. Said retaining element can displace from free position into locked position and vice versa. Safety element can displace retaining element from free position to locked position. At least, two hydraulic joints to be jointed together to make working fluid channel between the working tool pressurised fluid main line channel and machine pressurised fluid main line channel. There is a drive to displace said retaining element from free position to locked position and to drive, at least, one of said two hydraulic joints to connection with the other hydraulic joint. Said drive is separated from the main pressurised working fluid main line. Machine comprises above described connector. In compliance with proposed method, working tool is attached to the machine so that hydraulic joints are leveled. Attachment by means of retainer including retaining element an safety element. Said safety element displaces retaining element from free position to locked position at pressure decreased by aforesaid drive and vice versa. Said drive displaces said retaining element from free position to locked position and to drive, at least, one of said two hydraulic joints to connection with the other hydraulic joint.

EFFECT: higher efficiency.

15 cl, 6 dwg

FIELD: construction.

SUBSTANCE: device comprises two parts, one of which is fixed on the machine boom, and the other one is fixed on the tool. The first part comprises a tray-shaped holder, installed as capable of insertion of the other part under the shaft, which has an expansion in the form of a hook equipped with at least one side finger for passage into holes of grooves in the first part and a locking plate sliding in the middle part of the first part for insertion under the hook under action of springs. The locking plate is equipped with a stop element, which limits the reverse travel of the specified plate so that matching of the specified holes of the grooves is prevented.

EFFECT: reliable connection.

4 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: group of inventions refers to quick-detachable connection device. The connection device is aimed at the connection of a primary drive element with an operating tool and comprises the first and the second connection units. The first connection unit comprises the first and the second support units and is attached to the primary drive element, the second connection unit comprises the first and the second units in the form of recesses aimed at the connection with the first and the second support units of the first connection unit and is attached to the operating tool. The connection units can be coupled to the first connection contact zone and the second connection contact zone located at a distance from the first connection contact zone. The device also comprises a rotary locking element attached to the first connection unit and able of rotation for smooth fixation of the first and second connection units in respect to each other.

EFFECT: improved efficiency of operating tool performance, reduced wear between connection components.

20 cl, 10 dwg

Wear pad assembly // 2610480

FIELD: machine building.

SUBSTANCE: group of inventions relates to wear shoe assembly for installation on bucket-type working tools. Working tool wear pad assembly, contains edge with one or several holes made in it. Assembly contains wear-resistant pad, mounting bracket, made with possibility of attachment to wear-resistant pad, quick release pin for wear-resistant pad assembly attachment to working element edge and free coupling. Mounting bracket comprises one or several pairs of coaxial holes for pin. Free coupling is made with possibility of filling-in gap between one or several coaxial holes and pin. Road construction machine with working tool, containing edge with one or several holes made in it, as well as containing, at least, one wear pad assembly.

EFFECT: technical result is wear pad assembly installation so, that it can be quickly attached to working member in changeable manner.

13 cl, 5 dwg

Crane // 2621134

FIELD: transportation.

SUBSTANCE: crane (1) with at least one telescoping bracket (2) comprises a boom (3) and its extension (4) by means of a steering swivel (5) disposed on the boom extension (4), comprising two spaced-apart swivel pads (10), the working body (20) is fixed on the telescopic crane bracket (2), and hydraulic lines (6) lead from the boom (3) between the spaced-apart swivel pads (10) of the steering swivel (5) to the working body (20). In the end zone (41) of the boom extension (4), on which the steering swivel (5) is arranged, a guide (7) for the hydraulic lines (6) is provided, which guides them from the boom extension (4) to the zone (51) between the spaced-apart swivel pads (10) of the steering swivel (5). Fixing elements (8) for the hydraulic lines (6), between which the hydraulic lines (6) pass in the form of hydraulic hoses (9), are arranged on the boom (3) end (31) remote from the working body (20) and on the guide (7) end (71) remote from the working body (20).

EFFECT: crane improvement.

8 cl, 4 dwg

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