Device for checking possibility of mining mineral materials by cutting and for mining mineral materials

FIELD: open-cast mining.

SUBSTANCE: invention relates to continuous-operation self-propelled device designed for checking possibility of mining mineral materials and taking out interlayers whose properties, from point of view of their breaking and further transportation, are of vital importance at open cast mining. Proposed device has running gear, frame with drive unit and control panel and cutting drum arranged before running gear and equipped with cutting tools. Said drum is installed in supports of carrying frame for rotation around horizontal axis and is made for adjusting position in height by means of cylinder installed between frames and carrying frame. Crawler-type running gear is used. Cutting drum passes over entire width of device, and it is furnished with guide partitions and guard shield, is functionally connected with chute-like housing and is made for stepless change of speed of rotation, speed of feed and adjusting transverse tilting from one of two sides relative to working platform owing to vertical adjustment of position of one of hinge joints connection device frame and carrying frame which is made in form of forked rotary cantilever.

EFFECT: improved operating capabilities of device.

5 cl, 5 dwg

 

The present invention relates to a continuously operating self-propelled device for checking razrabatyvemoy of mineral raw materials and the possibility of seizure of prosloyku whose properties from the point of view of their conditions and further transportation are important in open development. Such a device preferably serves as a test (auxiliary) device for simple and inexpensive determination of optimal parameters that serve as the basis for further adaptation quarry mining machines or production unit (target device) to specific geological conditions in the new area of development, but can also be used as a simple small quarry mining machines or production unit for the development of small mineral deposits and opening reserves of this raw material.

From RU 2065959 a device for checking razrabatyvemoy cutting excavation of material for the extraction of mineral resources, having running gear, a frame with a drive unit and remote control and front chassis and equipped with cutting tools milling drum, which is mounted in bearings on the frame for rotation around a horizontal axis and is arranged to change its position on the pitch with the cylinder set is between the frame and the carrier frame. More specifically, the known device is a career excavation or mining machine Assembly with milling drum as a working body for selective extraction of mineral raw materials found in layers of sedimentary rocks, and to opening reserves of this raw material. This machine contains the lower part or base with trehkostochny chassis, which is the upper part or body with a closed casing of the power unit and the driver's cab. Before trehkostochny chassis when viewed in the direction of movement and at the same time of development, at the upper part of the fixed drum Assembly comprising a transverse frame, a milling drum and the receiving tray. In the direction of movement of the separated material during the milling unit in the area of the lower and upper parts of the machine is belt conveyor, which is designed for removal of material from the milling unit and which has located on the top of the rotating conveyor system, designed for handling material. For adjusting the position of the milling drum in height relative to the working platform of the machine and thereby to establish the plunge depth of the milling drum between the lower part and the upper part on both sides as the Executive bodies of the regulatory provisions of RA is based on the cylinders. The management of each of these cylinders can be carried out independently. Due to the rigid mounting of the milling unit on top of the machine when changing the height of this upper part varies the depth of the plunge milling drum for bumping in the excavation unit and at the exit from this excavation unit. Since this machine, respectively, of the device in the process of development due to the location of the milling drum front suspension is always moving on just formed a working platform, resulting from the cutting of the layer of material, the axis of the circle formed by the cutting tools milling drum in the excavation block in this process is set back to the middle position, resulting extracted by this device the material is developed blocks of uniform height. To change the slope of the milling drum relative to the working platform in the plane perpendicular to the direction of movement of the machine, can be due to a different extension of the cylinder rods. Rugged and reliable design ensures smooth operation of the milling drum even when the development of solid material. Based on a given performance production determine such parameters quarry mining machines or production unit, as the size, power drive AG is Agata and the cutting speed and feed accordingly sinking. The number and arrangement of the cutting tools, as well as the guides and reflective devices on the side of the milling drum and themselves cutting tools selected depending on properties of the developed material, as well as the requirements for its size. An important role plays and durability of the tools.

If you need to prepare career extraction machine or mining unit to work in an area with other important for the development of conditions that is different from development in the known areas, and if it is not possible to empirically determine the specific requirements for this device initially on the basis of theoretical knowledge and practical experience to determine the estimated required power of the drive unit, define the geometry of the milling drum, and choose the most appropriate given the conditions of the cutting tools. While taking into account the experience gained while working in similar conditions. If, however, during testing it appears that the device does not fully comply with the existing conditions of work, then take the appropriate measures providing for the adjustment of its parameters. In the simplest case, better results can be achieved only through the use of each the x cutting tools, easy to replace, as they are wear items. However, in the worst case you may need to make drastic changes, consisting in more complex changeover device, such as equipping it with other milling drum or a more powerful drive. The costs of such readjustment increase in direct proportion to the size, performance and technical capacity of the device.

The reason for the uncertainty in adaptation quarry mining machines or production unit to the specific conditions of their operation is that such conditions can be extremely extreme and multifaceted. Laboratory experiments also never allow accuracy to simulate the conditions encountered in practice in a particular area.

Based on the foregoing, the present invention was based on the task of developing a simple device for checking razrabatyvemoy cutting excavation of material for the extraction of mineral raw materials that are in various conditions on their specific areas of development would directly at the place of work to carry out tests, allowing you to define the behavior of the machine during its operation (vibration, noise, mode of cutting and wear resistance of the tool is (a). Such obtained on the test device information can then be used to build more complex structures and technical equipment quarry mining machine or mining machine. Such a device should also be suitable for use as a small, structurally simple quarry mining machines or production unit with the purpose of extraction of prosloyku and minerals from the reservoir of small capacity.

This problem is solved by using the proposed invention, the device for checking razrabatyvemoy cutting excavation material and for the extraction of mineral raw materials, which in accordance with the invention, the chassis is made on tracks and milling drum passes through the entire width of the device equipped with the guide walls and a safety shield, functionally associated with zheloboobraznogo casing and is made with the possibility of stepless change the frequency of its rotation, speed of delivery and regulation of its slope with one of the two sides relative to the working platform by regulating the vertical position of one of the hinges connecting the frame of the device with the carrier frame, which is made in the form of a clevis swivel console.

In a preferred embodiment of the hinge with the Association of the supporting frame and the frame of the device consists of one right and one left hinge, each of which is formed of one hinge finger, one of the two hinges located on the frame of the device is stationary, and the other hinge is made adjustable in height, and the support frame rests on the connecting finger height adjustable pivot on its center, and the specified finger with one end inserted into the vertical guide groove can move in the groove made in referring to the frame support and the second end is functionally connected with a hinge connected to the frame cylinder, regulating lateral tilt, and swivel joints of these fingers with the frame of the device are self-aligning bearings.

Cutting tools and guides partitions, it is preferable to arrange the rows, the number of which is equal to an integer, and so they passed through the spiral in the direction of rotation of the milling drum from the center to the edges.

To increase the weight of the device and change the position of its centre of gravity, it is expedient to provide for the installation of additional cargo.

It should be noted that the proposed invention, the device may be configured to control either directly by the operator or remotely through the system radiotelephone.

In the result it is possible to create a testing device,which basically allows you to perform the same important for the mining and treatment operation, performed and optimized career extraction machine or mining machine, but which nevertheless has a smaller size and simpler construction and due to this it is much easier, making it low-cost to transport to any point where it is to be used.

To obtain data that could subsequently be used to optimize quarry mining machines or production unit (the target device), the test device must meet certain requirements. Thus, in particular, his full weight, the power drive unit and its performance should be some proportion less than that of the mining machine or production unit, however, the load or force acting on the cutting tool must be the same as that of the machine or unit. In order to ensure the impact on the cutting tool about the same load as in the target device, the possibility to achieve a continuously variable operating speed of the milling drum and feed rate, respectively sinking of the test device.

In the proposed device has the ability to regulate the position of the milling drum height and lateral tilt relative to working the grounds of the device with just two cylinders: a Simple raising or lowering of the milling drum regulating position by the height of the cylinder allows you to adjust the depth of cutting. The change of the transverse angle of the milling drum is required when you need to open or to master a field of mineral raw materials, the surface of which is inclined transversely to the direction of sinking or has a different curvature relative to this direction. In accordance with a specified technology development after elimination of the transverse inclination of the developed material during excavation of the material subsequent underlying layers to the axis of the milling drum set parallel to the working space of the machine.

As the cutting tool is proposed to equip the milling drum cutters with round shank. Existing tools vary greatly in their design, degree of hardness and the material from which they are made. When testing picks primarily evaluate the suitability of various materials for their crowns and heat, and wear resistance of the base material of the cutter. The holders are equipped with bushings, protecting them from wear and facilitate rotation required for even wear and samosatene incisors. These sleeves, which are also wearing parts can be replaced. For more effective adaptation quarry mining machines or production unit (target device) to the conditions of the development on the COI the test device also conduct experiments, the purpose of which is to increase the service life of these bushings and thereby reducing the frequency of their replacement. Because the test device is smaller compared to the final device dimensions to obtain comparable results, it is necessary to reduce the number of cutting tools, the latter have only one spiral line. Changing the rotational speed of the milling drum and feed rate, respectively sinking, the load acting on the cutting tools, can be adjusted by the same amount as the value of the load acting on the cutting tools at the target device.

The separated material is poured on the work platform between the tracks of the chassis and then loaded onto trucks or trolleys.

Using performed similarly to the test device to simulate and test the operation of the mining machine or mining unit (target device) in the corresponding specific conditions. Reducing the size of the device and reducing its total weight, powerful drive unit and its performance in certain fixed proportions relative to the same parameters quarry mining machines or production unit at the same speed ramping and effort Rezan who I allow to use the resulting test data to calculate the parameters and the final composition of the final product.

Provided by the design of the test device the ability to change the cutting speed and feed or sinking and replace, and pick out the individual elements that are important for development from the point of view of performance and wear, allows you to conduct a variety of experiments or tests to optimize the device and improve its performance. Obtained by means of such test results is much easier and cheaper to use in relation to career excavation or mining machine Assembly (end device), than to conduct additional tests on the machine, respectively, the unit with the purpose of their optimization.

Self testing device can also be used as a quarry excavation machine or mining machine. This refers primarily to the opening and operation of small mineral deposits.

Other advantages and features of the invention discussed below in more detail by the example of the preferred option implementation proposed in the invention device, which is preferably used as the test device for optimizing quarry mining machines or production unit (the target device), taking into account the specific conditions of its operation, but which nevertheless can IP olsavica and as an independent career excavation or mining machine unit, with reference to the accompanying drawings on which is shown:

figure 1 - General view of the proposed device in the future,

figure 2 is a side view of the device of figure 1,

figure 3 shows in perspective the arrangement of the device of the Executive bodies of adjusting the position of the milling drum,

figure 4 - single picture frame device with crawler chassis and

figure 5 is a front view of the elements of the device in figure 4.

Proposed in the invention is a control or a test device for quarry mining machine or mining machine. Main differences between the proposed device consists in the arrangement of the milling drum front suspension when viewed in the direction of development, in the same direction of rotation of the milling drum, and the ability to adjust the position of the milling drum height and lateral tilt relative to the working platform. The presence of such functional features of such a test device is needed in order to make a conclusion on the measures required to adapt the career of excavation or mining machine of the unit to the specific geological conditions of the area of the new development.

As shown in figures 1 and 2, the device has a chassis 1 on tracks and R the mu 2. On the frame 2 installed power or drive unit 3 and unit 4 of the control. Front of chassis 1, when viewed in the direction of development, has milling drum 5.

In accordance with prescribed development technologies used for such quarry mining machines, the above device, moving from the initial position, cuts off the material on the downward slope of the plane, then develops excavation block approximately the same height and at the end again cuts material up the incline plane. After that, similarly, changing the direction of drilling, developing neighboring blocks. To plunge into the overlying rocks or in the formation of the inclined transversely to the direction of movement of the surface, respectively, to the removal of material is necessary to be able to change the position of the milling drum 5 parallel with the working space 6 of the pan. The above applies to the development of fields with a concave or convex surface. Necessary for the application of this technology development is the ability to change the position of the milling drum 5 is provided by two mechanisms govern the situation. The first is the main mechanism for controlling position provides rotation of the milling drum 5 with respect to the frame 2 and thereby regulate its height position relative to the working platform 6, and the second auxiliary mechanism adjusting the position allows you to change the angle of transverse inclination of the milling drum 5 relative to the working platform 6, which moves on the device.

The main mechanism for adjusting the position has a base frame 7, which is fully shown in figure 2 and partially in figure 3. This frame is made in the form of designs with solid walls and is located, when viewed in the direction of development and at the same time movement, before the frame 2 can be rotated in the right and left hinges 8 and 9. The free end of the supporting frame 7 is made forked and provided with bearings in which is mounted the shaft 5A of the milling drum. On both sides of the supporting frame 7 are the actuators 10, functionally, respectively kinematically connected with the shaft 5A of the milling drum. To rotate the supporting frame 7 and thereby adjusting the position of the milling drum 5 in height provided the lifting cylinder 11. Two hinges 8 and 9 in which the supporting frame 7 is connected to the frame 2, left 9 is stationary, and the right 8 are adjustable in height. Both the hinges 8 and 9 is formed by two spaced on a common axis 12 of rotation of the connecting fingers 8A and 9a. The supporting frame 7 rests on the connecting pin 8 and a height-adjustable hinge 8 at its center, with the specified finger in one end of stable is in a vertical guide groove 8b can be moved along the length of the groove, passing according to figure 3 and 4 related to the frame 2 pole 2A, and the second end is functionally connected with a hinge connected to the frame 2 cylinder 8C governing the transverse slope. This system allows you to change using cylinder 8C transverse angle milling drum 5. Mobility in both the hinges 8 and 9, when changing slope, is provided through the use of slewing bearings. The above-described device for controlling position allows you to adjust by using two cylinders 11 and 8C, the position of the milling drum 5, by changing its height position, and the transverse angle relative to the working platform 6.

The drum has a cylindrical lateral surface 5b. This side surface in one series of spirals (i.e. a single helix) is welded to a metal strip, designed for mounting holders under cutting tools 13, made in the form of cutters with round shanks, and is welded to the guide walls 19 to move along them separated material to the middle of the device in the direction transverse to its movement. Space to move the separated material, limited inside lateral surface L drum and outside - diameter circle, which during the rotation of the drum describe the vertices of the cutters with Aruji physically separated in the area of the milling drum after excavation unit mounted in the frame 2 zheloboobraznogo casing 14. This zheloboobraznogo casing 14 is in the middle of the device outlet port, through which the floating material can get into the working space 6 and stay lying on it in bulk form. This zheloboobraznogo cover 14 moves in the direction of drum rotation of the safety shield 18.

The proposed test device material is separated from the excavation unit located on the milling drum 5 cutting tools 13 and enjoys them in the direction of rotation. Thus separated at the boundary areas of the milling drum 5 material in addition moves to the middle of the device. After leaving the zone of excavation block, this material is removed from the edges of the drum along zheloboobraznogo casing 14 to the center and discharged through the outlet under the action of centrifugal force and is directed by reflective panels to the working area 6. In order to ensure the fall of the material in a parabolic trajectory from a hole in zheloboobraznogo the casing 14 to the working area 6 between the two tracks 1A and 1b due to sufficient free space frame 2 is made according to figure 5 in the form of a portal. Two of the guide plate 15 does not allow the ingress of material into dvukhchastichnogo chassis 1. After this material with a working platform 6 can be picked up auxiliary device and agregate it on trucks or trolleys. However, for transporting the exhaust from the zone of excavation material optionally also include belt conveyor and avoid in this way the temporary storage of this material on the working platform 6. The management of the proposed device is simple in accordance with its functions. All functions is carried out through the system radiotelephone. The operator can control the device or from the remote control 4 control or remotely.

With the simple design of the test device also has a small mass. If you own the device's weight is not enough to ensure that in the process of determining tuning parameters for the subsequent development to provide the optimal conditions for development due to vibrations arising or insufficient efforts of the milling drum, the weight of the device can be increased by installing additional weights 16 and 17 on the main frame 7 of the milling drum 5 and at the opposite end of the frame 2. These loads 16 and 17 also allow you to change the position of the center of gravity of the device. In the result, it is possible to improve the working and performance of the device.

To obtain using the proposed test device at low cost such results, which could be used to optimize quarry mining machines or obychno what about the unit in the final layout (target device), as parameters such as total mass, the power drive unit and performance, use the appropriate values, which are in constant proportion reduced relative to the same parameters of the target device, i.e. the device in the final layout. Circumferential speed of the cutting tools 13 and acting separately on each load must be at the test device the same as that of the quarry excavation machine or mining machine. The average width and average depth of cut of the cutting tool 13 pick in such a way that the difference between them was more minimal. The speed of the device, which is at the same time and feed rate on cutting or drilling, and the frequency of rotation of the milling drum, which is determined by the circumferential speed and the cutting speed cutting tools 13 can be modified to obtain when testing or verifying the values optimal for specific conditions.

The proposed device allows you to choose and test the following details are important, and mutually agree on the following parameters:

- selecting appropriate to the specific conditions of cutting tools 13,

- implementation of the holders wear,

- the replacement of cutting tools 13,

- the number is the creation of cutting tools 13,

distance, respectively, the step between the cutting tools 13,

- execution of the spiral guide walls 19 wear,

- determination of optimal cutting speed,

- determination of the necessary cutting ability,

- determination of the optimal feed rate on cutting or drilling,

- the optimal weight of the device

- the optimal location of the center of gravity of the device.

Used as cutting tools 13 tools picks have the most diverse performance and differ in their size and the material from which they are made. The choice of these cutters is based on achieving optimal results in the relevant area development.

The number of cutters on the side surface L milling drum, in combination with the cutting speed and feed, respectively sinking is crucial to the performance of development and size of the extracted material. Because the cutters with round shank can be located on the side surface 5b of the drum along a line, the number of which is equal to an integer and which are V-shaped in the direction of drum rotation, and the step between the incisors in the test device and quarry mining machines or production unit must be the same, necessarily arise mejdoubi devices differences in the ratio of the number of cutters, per unit area of the excavation block. To get on the test device results that could be used for quarry mining machines or production unit, feed rate, respectively penetrations testing devices change so that the force acting on the cutters with round shank, was the same as the force, presumably acting on the cutters of the respective career excavation or mining machine Assembly.

Located on the side surface 5b of the drum and are designed for lateral movement of the material guide walls 19 can be optimized taking into account manifested during the trial operation signs of wear.

Optimum cutting speed and feed, respectively penetrations coordinate in the test mode of operation with optimum performance development by regulating drives.

The proposed device can be used as a test device for optimizing the parameters of a larger quarry mining machines or production unit, or as a simple career excavation or mining machine Assembly.

1. Device for checking razrabatyvemoy cutting excavation of material for the extraction of mineral raw materials with the course of the first part (1), frame (2) with a drive unit (3) and control (4) control and front of chassis (1) and equipped with cutting tools (13) of the milling drum (5)which is mounted in bearings on the frame (7) for rotation around a horizontal axis and is arranged to change its position on the pitch with the cylinder installed between the frame (2) and the supporting frame (7), characterized in that the chassis (1) is made of a caterpillar, and a milling drum (5) passes through the entire width of the device, equipped with guide walls (19) and a safety shield, functionally associated with zheloboobraznogo casing (14) and is made with the possibility of stepless change the frequency of its rotation, speed of delivery and regulation of its slope with one of the two sides relative to the work platform (6) by regulating the vertical position of one of the hinges connecting the frame (2) of the device with the carrier frame (7), which is made in the form of a clevis swivel console.

2. The device according to claim 1, characterized in that the swivel frame (7) and frame (2) consists of one right and one left hinge (8 and 9), each of which is formed of one hinge pin (8A, 9a), one (9) of the two hinges is located on the frame (2) of the device is stationary, and the other fixed the (8) is made adjustable in height, and the supporting frame (7) is based on the connecting pin (8A) a height-adjustable hinge (8) at its center, and the specified finger with one end inserted into the vertical guide groove (8b) can move in the groove made in referring to the frame (2) support (2A), and the second end is functionally connected with a hinge connected to the frame (2) cylinder (8C)governing the transverse tilt, and swivel joints of these fingers (8A, 9a) with a frame (2) devices are self-aligning bearings.

3. The device according to claim 1, characterized in that the cutting tools (13), and the guide wall (19) are arranged in rows, the number of which is equal to a whole number, and are spirally in the direction of rotation of the milling drum (5) from the center to the edges.

4. The device according to claim 1, characterized in that to increase the weight of the device and change the position of its centre of gravity provided by the extra cargo (16, 17).

5. The device according to claim 1, characterized in that it is arranged to control them either directly by the operator or remotely through the system radiotelephone.



 

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