Construction machine and method of erecting cutoff wall

FIELD: construction industry.

SUBSTANCE: group of inventions refers to mining engineering and construction industry, namely to construction machine, particularly for vibration generation. Construction machine includes transfer mechanism, at least one hydraulic drive and hydraulic system for providing hydraulic drive with hydraulic medium. At that, at least one lubrication hydraulic line by means of which hydraulic medium can be supplied to transfer mechanism as lubrication means is branched off hydraulic system. At that, in lubrication hydraulic line there provided is dosing device by means of which supply of lubrication means can be changed depending on operating mode of transfer mechanism.

EFFECT: improving operating reliability of machine.

13 cl, 1 dwg

 

The technical field

The present invention relates to a construction machine, in particular for generating vibration, in accordance with the restrictive part of paragraph 1 of the claims. Such a construction machine includes a gear mechanism, at least one hydraulic actuator and a hydraulic system for providing hydraulic hydraulic medium from the hydraulic branches, at least one lubricant hydroline through which hydraulic medium can be fed to the transfer mechanism as a lubricant.

The level of technology

Construction machine of this type is known from patent document FRG No. 10115260 C2. In this solution it is proposed to connect the hydraulic system with hydraulic lubrication system for a gear mechanism, so that the hydraulic medium acts as a lubricant.

Vibrator for homogenization of mixtures, equipped with a combined hydraulic and lubrication system, known from U.S. patent No. 4039167.

Disclosure of inventions

The problem to which the present invention is directed, is to improve the construction machine of the specified type in such a way that increasing the versatility of the machine is achieved by its particularly high operational reliability. Another object of the invention is to create with the person erecting piling.

In accordance with the invention the solution of this problem is achieved by creating a construction machine, having signs on paragraph 1 of the claims, and method of construction piling on item 13 of the claims. Preferred embodiments of the invention set forth in dependent clauses.

Proposed construction machine, in particular for generating vibration containing a gear mechanism, at least one hydraulic actuator and a hydraulic system for providing hydraulic hydraulic environment. From hydraulic branches, at least one lubricant hydroline through which hydraulic medium can be fed to the transfer mechanism as a lubricant. Construction machine according to the invention is characterized in that the lubricating hydroline provided by the metering device through which a supply of lubricant may be changed depending on the mode of operation of the transfer mechanism.

The basic idea of the invention is to provide a lubricant dispensing device, which may purposefully be configured, in particular, be controlled and/or regulated flow of lubricant in the lubricant hydroline between the hydraulic system and transmission mechanism in compliance and with the mode of operation of the transfer mechanism. The invention is based on the idea that the need for a gear mechanism in the lubricating means may depend on its mode of operation. Variable demand in the lubricating means may be determined, for example, the fact that at higher speeds the lubricating means is delayed in places lubrication shorter time and/or what is required to allocate a greater amount of heat. In this aspect, a variable flow of lubricant in accordance with the invention can provide reliable lubrication at high speeds. At the same time it is guaranteed that at low numbers of revolutions of the hydraulic system is not given without the need of a large quantity of fluid, and in the team bath transmission mechanism does not accumulate unwanted large amount of lubricant.

The consumption of lubricant in the transmission mechanism depending on the mode of operation can be ensured also in the case when the drainage of lubricant from the gear mechanism is performed depending on the operation mode, in particular on the number of turns. In this case, in accordance with the invention can be provided with a constant ratio between the flow inlet and flow outlet of lubricant in gear and from him regardless of the mode of operation In particular, these costs can be adjusted by the same amount. This ensures operation of the transfer mechanism without excess or lack of lubricant even under prolonged use. To prevent transmission mechanism overflow lubricating means is preferably provided that the consumption allocation of the transmission mechanism exceeds the flow of feed. In this case, to prevent pump drain pump may be provided for compensating means, which returns a portion of the allotted lubricant back into gear.

Mode of operation may involve, for example, the number of revolutions of the transmission mechanism. However, the operation mode may be determined by the level of lubricant in the transmission mechanism.

Thanks to the invention reliably supplied lubricant in gear only during its operation. Through this prevents the filling of the transmission lubricating means at rest. The supply of lubricant depending on the mode of operation provides a metered forced lubrication of the transmission mechanism.

The invention allows for the operation of the construction machine with a variable speed predation the mechanism, this ensures a particularly reliable lubrication depending on speed. This achieves a special versatility and reliability of the construction machine. When the construction machine to generate vibration, particularly in the form of a vibrator, a variable speed transmission mechanism enables safe and reliable crushing into the ground the various construction elements of the vibration method, even when the variable Geology of the ground.

In a particularly preferred embodiment of the invention the metering device fitted with a metering pump, which is mechanically connected to the transmission mechanism. According to this exemplary embodiment, a dosing pump, which serves to supply lubricant to the transfer mechanism is at least one element of the gear mechanism. The mechanical connection is particularly simple and reliable, it provides a drive transmission device depending on the operation mode. However, in principle it is also possible to determine the mode of operation of the transfer mechanism with an electronic sensor and adjusting the flow of lubricant to the transfer mechanism by the Executive body with electronic control.

Further, in a particularly preferred when the ore embodiment of the invention provides a device for removal of lubricant, through which the lubricating medium can be discharged from the transfer mechanism depending on the mode of operation of the transfer mechanism. According to this exemplary embodiment as a flow of lubricant in gear, and the drainage of lubricant from the transmission mechanism are controlled depending on the operation mode.

In a particularly preferred example of execution of the device for draining lubricant contains at least one drain lubricant hydroline, in which is located a pump for discharge of lubricant, mechanically associated with the transfer mechanism. Preferably the pump for discharge of lubricant is mechanically connected to the transmission mechanism. According to this example, run the pump for discharge of lubricant like dosing pump mechanically driven by an element of the transmission mechanism. In principle it is also possible to regulate the drainage of lubricant from the gear mechanism with the help of the Executive body with electronic control, based on the perceived sensor mode of operation.

In the aspect of the drainage of lubricant from the transmission mechanism depending on the number of revolutions of the solution according to the invention provides a particularly comprehensive benefits. In this case, as is well known in the anti-shudder performance techniques, the supply of lubricant in the gear set to a constant value, the size of the pump for discharge of lubricant should be designed in such a way to securely take the supplied lubricating means even at the lowest speed. However, this entails an inflated size of the pump for discharge of lubricant. In this case, if the transmission mechanism operates with higher speed, especially with a nominal number of revolutions, this is too large a pump removes more oil than it has in the team bath transmission mechanism. Under certain conditions it may cause unwanted delivery of large quantities of air into the drain lubricant hydroline and away from the hydraulic system of the machine, which could cause undesirable foaming of the oil. In contrast, according to the invention the supply of lubricant in the gear mechanism is also adjustable depending on the operation mode. Thus, according to the invention is supplied and discharged quantity of lubricant is in strict proportion. It does not require excessive size of the pump for discharge of lubricant that prevents undesirable foaming of the oil. The best way in any case, the amount of oil supplied to the metering pump and the pre is also respectfully quantity of lubricant, exhaust pump outlet is set in proportion to the number of revolutions of the transmission mechanism.

Reliability can be further enhanced by the fact that in particular far from the transmission mechanism side of the pump for discharge of lubricant from the discharge of lubricating hydroline branches off compensation (equalization) hydroline, which, preferably, via the inductor, according to the transmission mechanism. Compensation hydroline can be, for example, in order to apply back in gear gas fraction, which could be under certain conditions abstracted from the transmission mechanism of the pump for discharge of lubricant. In addition, the compensation hydroline can prevent dry operation of the transfer mechanism.

In particular for the purpose of preventing unwanted loss of fluid in the preferred embodiment, provided drainage hydroline oil leaks exhaust leaks oil from the hydraulic drive and/or from the metering pump. To reduce the cost of equipment in the preferred exemplary embodiment provides for joint drainage hydroline oil leakage from the hydraulic actuator, and from the metering pump.

Further, in the preferred exemplary embodiment provides for the discharge hydro is INIA, which are communicated to the fuel hydroline, drain the fuel hydroline and/or drainage hydroline leaks oil through the respective pressure limiting valve, and the discharge hydroline reported to the transmission mechanism. Due to this can be particularly simple manner implemented protection against excessive pressure. Accordingly drain the lubricant hydroline communicates with the discharge hydroline in the direction of flow for the pump for discharge of lubricant.

The hydraulic medium, which is fed to the transfer mechanism as a lubricant, may be particularly oil leakage in the hydraulic circuits. Alternative or additionally may be provided to supply the transmission mechanism of oil discharged from the hydraulic actuators. Accordingly, in the preferred exemplary embodiment the lubricant hydroline branched from the drain hydroline hydraulic system. According to this exemplary embodiment the lubricating agent is selected from the stream of exhaust from the motor. Typically, drainage hydroline leaks and/or drain hydroline hydraulic pressure is relatively low, which is particularly suitable for the purposes of lubrication. It is also possible to apply to the transfer mechanism as the lubricant is diverted from butter or oil leaks, which ensures a particularly reliable on AspectJ lubricating means. So for example, may be provided to apply to the transfer mechanism main thread of the drain hydroline and more dependent on mode of operation the flow of oil leaks.

In principle according to the invention can be provided that the hydraulic drive and the gear unit are provided independently from each other. However, in the preferred exemplary embodiment of the hydraulic drive is designed to drive transmission mechanism. According to this exemplary embodiment, the hydraulic drive is provided accordingly on the drive shaft of the gear mechanism. The transfer mechanism may be, for example, gear rotation, in particular the gear transmission mechanism. Hydraulic actuator preferably is a hydraulic motor.

Construction machine a very versatile use and/or particularly high performance is created due to the fact that the drive transmission mechanism is provided, at least two hydraulic actuator, each of which is provided by the drain hydroline. For a particularly reliable lubrication in the preferred exemplary embodiment the lubricant hydroline is in communication with both the drain hose.

To test the function of the lubricant in the preferred example of execution of lubricating hydroline, especially addressed to eruditionem mechanism side of the metering pump provides pressure relief valve pressure.

For a particularly simple generating vibration in a preferred example of execution of the transfer mechanism is at least one eccentric weight. Accordingly can be provided by several non-balances, the position of which the phase can be changed to regulate the amplitude of the vibration.

Construction machine according to the invention, which can also be called a vibrator, preferably is a unit for excavation, with which the elements of the bases, sheet piles and/or working bodies for the development of a soil can move deeper into the soil. For this purpose, the gear mechanism preferably includes a holder for a construction element. For example, the construction machine can be a surface vibrator-attachment or deep vibrator. Construction machine can be designed especially for soil compaction. Under fluid-fluid according to the invention refers to a liquid, in particular oil. To power the hydraulic actuators are preferably provided, at least one hydraulic pump, located in the hydraulic system. Preferably the hydraulic pump is provided on the base car, which gear with hydraulic drive is with the possibility of adjustment. Especially it is preferable that was PR is gusmorino means for regulating the speed of the hydraulic drive. For this preferably provides an adjustable hydraulic pump. According to the invention, the hydraulic system can be performed as open or closed loop.

The invention also covers a method of construction spotboy wall, which by means of the construction machine in accordance with the invention in sheet piles excite mechanical vibrations and crush them into the ground.

Next, with reference to the accompanying drawing will be described in detail embodiments of the invention. The drawing shows a hydraulic circuit of a construction machine according to the invention.

The implementation of the invention

Construction machine according to the invention shown in the drawing of the Construction machine, made in the form of the vibrator contains a gear mechanism 3, wherein to generate the vibration provided by the first two unbalance 6 and two second unbalance 6'. On the transmission mechanism 3 is adjustable hydraulic motor 61, which may be regulated by the position of the phase of the first non-balances 6 relative to the phase of the second non-balances 6'. To supply the regulated hydraulic motor 61 has two working hydroline 60, 60' hydraulic environment.

For the drive transmission mechanism 3 is provided by two hydraulic drive 5, 5', which is in mechanical communication with the non-balances 6, '. For supplying hydraulic fluid to the hydraulic actuator 5 includes a pressure hydroline 51. Similarly for supplying hydraulic fluid to the hydraulic actuator 5' includes a pressure hydroline 51'. To drain hydraulic fluid from the hydraulic actuators 5, 5' have respective drain hydroline 50, 50'. Between the pressure hydroline 51 and a drain hydroline 50 of the hydraulic actuator 5 is the check valve 53, which permits flow from the drain hydroline 50 to the pressure hydroline 51 and cuts off the reverse flow. A similar check valve 53' is between the pressure hydroline 51' and a drain hydroline 50' hydraulic drive 5'. To power the hydraulic actuators 5, 5' are provided two not shown in the drawing of the water pump, communicating respectively with the hose 50, 51 and 50', 51'.

According to the invention is provided the use of a working fluid of the hydraulic actuators 5, 5' is also for lubrication of the transmission mechanism 3. For this purpose lubricant hydroline 10, which is communicated with a drain hydroline 50 of the hydraulic actuator 5 and a drain hydroline 50' hydraulic drive 5' and due to this may take away the exhaust from the hydraulic actuators 5, 5' the fluid from the drain hose 50, 50' and to bring it as a lubricant in gear 3.

To adjust the quantity of fluid supplied che is ez lube hydroline 10 to the transfer mechanism 3, it is the metering pump 16. This dosing pump 16 is mechanically connected to the transmission mechanism 3, in particular with non-balances 6, 6', so that the rotational speed of the metering pump 16, and hence given to them by the flow of the lubricant is determined by the number of revolutions of the transmission mechanism, that is, in proportion to him. In the area of the transmission mechanism 3 in lubricating hydroline 10 is provided a relief valve 19 pressure, which closes at a certain pressure and controls prescribed lubrication regime.

For removal of lubricant from the transmission mechanism 3 is provided for the drain lubricant hydroline 20, soamsawali with drain transmission mechanism 3. This drain lubricating hydroline 20 lubricating the tool is removed from the transmission mechanism 3 is not shown in the drawing precast Baku, from which fluid can be supplied by the hydraulic pressure in the hydroline 51, 51' of the hydraulic actuators 5, 5'. In the discharge of lubricating hydroline 20 is a pump 26 removal of lubricant, which, as the metering pump 16, is mechanically connected to the transmission mechanism 3, so the volumetric flow also depends on the number of revolutions of the transmission mechanism 3. The dependence of the volumetric feed both pumps 16 and 26 from the number of revolutions of puredata the mechanism 3 provides his work without excess or shortage of the lubricating fluid.

With drain lubricating hydroline 20 is connected compensation hydroline 28, which leads to the transfer mechanism 3 through the orifice 27 and can be, for example, for removal of the gas phase from the drain lubricating hydroline 20 in gear 3.

To drain oil leaks from both of the hydraulic actuators 5, 5' provided by the drainage hydroline 30 oil leaks. It is combined with other drainage hydroline 36 oil leakage from a regulated hydraulic motor 61 in General, the drainage hydroline oil leaks. In addition, for both hydraulic actuators 5, 5' provided additional drainage hydroline 31 oil leaks, which connects the hydraulic actuators 5, 5' each other.

The metering pump 16 is communicated with the connecting hydroline 32 with drainage hydroline 30 oil leakage and, if necessary, also with drainage hydroline 31 leaks oil hydraulic actuators 5, 5'. While the metering pump 16 can take the fluid from the drain hose 30, 31 leaks oil and serve it in gear 3 as a lubricant. Connecting hydroline 32 may also be used to drain leaks oil metering pump 16.

In addition to the described components in the device has a discharge hydroline 40, which reported lubricants hydroline 10 through the valve 41 and the pressure limits drainage hydroline 20 oil leaks cher the C valve 42 limit pressure and drainage hydroline 36 oil leakage through the valve 43 limit pressure. Unloading hydroline 40 leads to the transfer mechanism 3 and is able to protect against excessive pressure to withdraw the fluid from the hose 10, 20 and/or 30 in gear 3.

The device is equipped with an additional safety valve 39, the pressure associated with the drainage hose 30, 36 oil leaks. It opens when exceeding a predefined pressure and may serve to avoid increasing the pressure in the drainage hose 30, 36 oil leaks that could in certain circumstances cause functional failures in operation of the hydraulic actuators 5, 5' or adjustable hydraulic pump 61.

If the work shown on the drawing device the hydraulic actuators 5, 5' feed fluid medium under pressure through the pressure hydroline 51, 51' and lead gear 3. When this fluid output of the hydraulic actuators 5, 5 is discharged through the drain hose 50, 50'. At least part of the exhaust fluid is directed by lubricating the hydroline 10 back in gear 3 as a lubricant. The metering pump 16, which is mechanically connected to the transmission mechanism 3, a supply amount of lubricant depending on the number of revolutions of the transmission mechanism 3. At the same time lubricating the tool in the bottom region of the transfer mechanism 3 is given p the drain lubricating hydroline 20. This allocated amount of lubricant is controlled by pump 26 removal of lubricant, which is also mechanically connected to the transmission mechanism 3, depending on the number of revolutions of the transmission mechanism 3.

1. Construction machine, in particular for generating vibration, containing the transmission mechanism (3)at least one hydraulic actuator (5, 5') and a hydraulic system for providing hydraulic actuator (5, 5') of the hydraulic medium from the hydraulic branches, at least one lubricant hydroline (10), through which the hydraulic medium can be fed to the transfer mechanism (3) as a lubricant, characterized in that the lubricating hydroline (10) is provided by the metering device through which the flow of lubricant can be changed according to the mode of operation of the transmission mechanism (3).

2. Construction machine according to claim 1, characterized in that the metering device is equipped with a metering pump (16), which is mechanically connected to the transmission mechanism (3).

3. Construction machine according to claim 1 or 2, characterized in that a device for draining lubricant made with the possibility of discharge of lubricant from the transmission mechanism (3) depending on the mode of operation of the transfer mechanism is ZMA (3).

4. Construction machine according to claim 3, characterized in that the device for draining lubricant contains at least one drain lubricant hydroline (20)in which is located a pump (26) removal of lubricant, mechanically linked to the transmission mechanism (3).

5. Construction machine according to claim 4, characterized in that far from the transmission mechanism (3) side of the pump (26) removal of lubricant from the discharge of lubricating hydroline (20) branches off compensation hydroline (28), which preferably via the orifice (27) communicates with the transmission mechanism (3).

6. Construction machine according to any one of claims 1, 2, 4, 5, characterized in that provided drainage hydroline (30) oil leaks exhaust leaks oil from the hydraulic actuator (5, 5') and/or from the metering pump (16).

7. Construction machine according to claim 4 or 5, characterized in that provided for the discharge hydroline (40), which are communicated to the fuel hydroline (10), drain the fuel hydroline (20) and/or drainage hydroline (30) leakage of oil through the valve (41, 42, 43) limit pressure, and discharge hydroline (40) communicates with the transmission mechanism (3).

8. Construction machine according to any one of claims 1, 2, 4, 5, characterized in that it is equipped with a drain hydroline (50, 50') of the hydraulic system, which branches off the fuel hydroline (1).

9. Construction machine according to any one of claims 1, 2, 4, 5, characterized in that the hydraulic actuator (5, 5') is designed to drive transmission mechanism (3).

10. Construction machine according to any one of claims 1, 2, 4, 5, characterized in that the drive transmission mechanism (3) is provided, at least two hydraulic actuators (5, 5'), each of which is provided by the drain hydroline (50, 50'), and lubricants hydroline (10) is in communication with both the drain hose (50, 50').

11. Construction machine according to any one of claims 1, 2, 4, 5, characterized in that the lubricating hydroline (10), in particular directed to the transmission mechanism (3) side of the metering pump (16), there is a pressure relief valve (19) pressure.

12. Construction machine according to any one of claims 1, 2, 4, 5, characterized in that the gear mechanism (3) is at least one eccentric weight (6, 6').

13. The method of construction spotboy wall, which by means of a construction machine according to any one of the preceding paragraphs in sheet piles excite mechanical vibrations and crush them into the ground.
Priority: 10.05.2007 - claims 1 to 13.



 

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2 cl, 1 dwg

FIELD: building, particularly methods or apparatus for placing sheet pile bulkheads, piles, mould-pipes, or other moulds.

SUBSTANCE: method involves driving two differing invented profiling members, namely additional and main ones, in ground to create invented profiling unit. Additional invented profiling member is driven in ground along with main one for lesser depth and is used to create outer waterproofing means. Before vibratory additional member removal the member is filled with waterproofing composition. The additional member is removed after main profiling member freeing from ground.

EFFECT: extended technological capabilities and increased efficiency due to creation of solid elongated bearing-and-enveloping structure in ground.

3 cl, 7 dwg

FIELD: building, particularly to drive and remove large-diameter shell-type piles from ground during pile foundation erection.

SUBSTANCE: vibratory plant comprises vibroexciter with drive composed of two motors, main gripper used as vibroexciter base and fastening means, which fixes vibroexciter to shell-type piles. The vibroexciter is made as two eccentric blocks connected with each other by synchronizing shafts. Each eccentric block includes two cams freely put on stationary axis and connected with drive by tooth-wheels to provide synchronous rotation thereof in mutually opposite directions. Main gripper is provided with fixed thrust and movable wedge-like shoes connected to hydraulic cylinders. Vibroexciter has additional gripper abutting vibroexciter through damping pad and connected to main gripper by means of hydraulic power cylinders and spring-loaded cushion with hydraulic jacks to provide indexed vibroexciter displacement along shell-type pile during pile driving in ground and removal from ground.

EFFECT: increased capacity and reduced costs of works and equipment necessary for foundation erection.

3 cl, 5 dwg

FIELD: vibration technique of intensification of production processes by directive inertial vibration action.

SUBSTANCE: proposed method consists in forming two kinds of vibrations in continuously alternating sequence by means of unbalanced masses revolving in radial axles located on opposite sides relative to vibration rod axis. Vibration exciter includes vibration rod with unbalanced mass holder mounted on it; unbalanced masses are placed on bevel gears and are kinematically linked by means of intermediate gear. Bevel gears with unbalanced masses are placed on radial axles and are located on opposite sides relative to vibration rod axis; intermediate gear is kinematically linked with drive. Proposed method makes it possible to form two kinds of vibration simultaneously: longitudinal reciprocating vibration for forming compelling directive force and transversal torsional swinging vibration for forming torque aligning their maximum and minimum magnitudes in phase and anti-phase modes.

EFFECT: enhanced efficiency.

4 cl, 7 dwg

FIELD: building, particularly to drive piles and other building members in ground during pile foundation erection.

SUBSTANCE: pile driver has actuator, body, eccentric shafts arranged on common axis inside the body and connected to actuator by gearing, overrunning clutch and distribution shaft. Pile driver is provided with additional distribution shaft connected to actuator by overrunning clutch and eccentric shafts arranged in pairs in rotation direction. One eccentric shaft of each pair is connected to additional distribution shaft by gear wheels, another eccentric shaft is connected to distribution shaft and actuator.

EFFECT: increased efficiency and extended range of operational capabilities.

5 dwg

The invention relates to the field of construction, namely, devices for erection in the soil chosen to replace-walling low-rise residential buildings, preferably in sandy, loamy sand and plastic clay soils

The invention relates to a vibration technique, generally to a device for soil compaction, diving into the ground or taking out of pile elements

The invention relates to the construction

FIELD: building, particularly to drive piles and other building members in ground during pile foundation erection.

SUBSTANCE: pile driver has actuator, body, eccentric shafts arranged on common axis inside the body and connected to actuator by gearing, overrunning clutch and distribution shaft. Pile driver is provided with additional distribution shaft connected to actuator by overrunning clutch and eccentric shafts arranged in pairs in rotation direction. One eccentric shaft of each pair is connected to additional distribution shaft by gear wheels, another eccentric shaft is connected to distribution shaft and actuator.

EFFECT: increased efficiency and extended range of operational capabilities.

5 dwg

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