Hydraulic auxiliary winch system for mechanical-hydraulic integrated dynamic compactor

Abstract

The utility model discloses a hydraulic auxiliary winch system for a mechanical-hydraulic integrated dynamic compactor, and belongs to the field of auxiliary winch systems. A hydraulic auxiliary winch system for a mechanical-hydraulic integrated dynamic compactor comprises a main pump, a winch and an oil tank, and further comprises a reversing valve connected with the main pump. The valve block is connected with the reversing valve, an auxiliary winch motor is connected to the valve block, and the auxiliary winch motor is used for driving a winch to work; the reversing valve is provided with a left position, a middle position and a right position, when the reversing valve is located at the middle position, the auxiliary winch motor does not work, when the reversing valve is located at the left position, the auxiliary winch motor rotates reversely, and when the reversing valve is located at the right position, the auxiliary winch motor rotates forwards; according to the unhooking device, after a steel wire rope on the unhooking device is accidentally broken and unhooking cannot be carried out normally, an operator of the dynamic compaction machine can start the auxiliary winch emergently and open the unhooking device by using the auxiliary winch, so that a rammer falls to the ground freely, accidents are avoided, and the safety is greatly improved; the whole system can ensure that the auxiliary winch works stably, safely and stably.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary hoisting systems, in particular to a hydraulic auxiliary hoisting system for a mechanical-hydraulic integrated dynamic tamping machine. Background Art

[0002] The mechanical-hydraulic integrated compacting machine is a mechanical equipment that combines the hydraulic cylinder and the compacting mechanism to achieve efficient, high-energy and high-mobility compacting operations; this equipment is mainly used for compacting various soils, sand, gravel, earth-stone filling materials and other materials to improve the bearing capacity and stability of the foundation.

[0003] The hydraulic auxiliary winch system is an important component of the mechanical-hydraulic integrated dynamic compaction machine. Its main function is to drive the wire rope winch through hydraulic power to achieve the lifting and lowering of the rammer. In actual applications, the performance of the hydraulic auxiliary winch system directly affects the compaction effect and operating efficiency of the dynamic compaction machine. Therefore, choosing a high-quality hydraulic auxiliary winch system is crucial to ensuring the performance and reliability of the dynamic compaction machine.

[0004] At present, the hydraulic auxiliary winch system of the existing mechanical-hydraulic integrated rammer is inefficient in replacing the wire rope when in use, and once the unhooking rope is accidentally disconnected, the rammer can only be lowered by relying on the external brake, which poses certain safety hazards. In view of this, the present utility model is specially proposed. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a hydraulic auxiliary winch system for a machine-liquid integrated dynamic tamping machine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A hydraulic auxiliary winch system for a mechanical-hydraulic integrated dynamic tamping machine, comprising a main pump, a winch and an oil tank, and also comprising:

[0008] A reversing valve connected to the main pump;

[0009] A valve block is connected to the reversing valve, and an auxiliary hoisting motor is connected to the valve block, and the auxiliary hoisting motor is used to drive the hoist to work;

[0010] The reversing valve is provided with a left position, a middle position and a right position. When the reversing valve is located in the middle position, the auxiliary hoisting motor does not work. When the reversing valve is located in the left position, the auxiliary hoisting motor reverses. When the reversing valve is located in the right position, the auxiliary hoisting motor rotates forward.

[0011] Preferably, the valve block comprises a shuttle valve, a balancing valve and a one-way throttle valve which are connected to each other.

[0012] Preferably, it further comprises a pilot control valve, wherein the pilot control valve is connected to the reversing valve, and the pilot control valve is used to control the reversing valve.

[0013] Preferably, a return pipe is provided between the reversing valve and the oil tank, and a brake valve is provided on the return pipe.

[0014] Preferably, a planetary gear reducer is provided in the hoist, the input shaft of the planetary gear reducer is connected to the output end of the auxiliary hoisting motor, and the output end of the planetary gear reducer drives the hoist to work.

[0015] Preferably, a normally closed brake is also included to control the start and stop of the auxiliary hoisting motor.

[0016] Compared with the prior art, the utility model provides a hydraulic auxiliary winch system for a mechanical-hydraulic integrated dynamic compaction machine, which has the following beneficial effects:

[0017] 1. The hydraulic auxiliary winch system for the mechanical-hydraulic integrated dynamic compaction machine can be used to assist in dragging the main winding wire rope and other auxiliary work during the installation of the dynamic compaction machine or the replacement of the main winding wire rope, thereby reducing labor intensity and improving work efficiency.

[0018] 2. The hydraulic auxiliary winch system used for the mechanical-hydraulic integrated tamping machine cannot be lowered with load during the operation of the tamping machine. Once the unhooking rope is accidentally disconnected, the tamping hammer can only be lowered by the external brake, which is dangerous. The steel wire rope of this auxiliary winch system is normally connected to the unhooking device. Usually, this auxiliary winch does not work. When the steel wire rope on the unhooking device is accidentally disconnected and cannot be unhooked normally, the tamping machine operator can start this auxiliary winch urgently, use this auxiliary winch to open the unhooking device, and let the tamping hammer fall freely, avoiding accidents and greatly improving safety.

[0019] The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. In the utility model, when the wire rope on the unhooking device is accidentally disconnected and cannot be unhooked normally, the rammer operator can urgently start the auxiliary winch to open the unhooking device with the auxiliary winch, so that the rammer can fall freely to the ground, avoiding accidents and greatly improving safety. The entire system can ensure that the auxiliary winch works smoothly, safely and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model discloses a structural schematic diagram of a hydraulic auxiliary winch system for a mechanical-hydraulic integrated dynamic compaction machine.

[0021] In the figure: 1. main pump; 101. brake valve; 2. pilot control valve; 3. reversing valve; 4. auxiliary winch motor; 5. valve block; 501. shuttle valve; 502. balancing valve; 503. one-way throttle valve; 6. winch; 601. planetary gear reducer; 7. normally closed brake; 8. oil tank. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] Embodiment 1:

[0025] Reference Figure 1 A hydraulic auxiliary winch system for a machine-liquid integrated tamping machine includes a main pump 1, a winch 6 and an oil tank 8, and also includes a reversing valve 3 connected to the main pump 1; it also includes a valve block 5 connected to the reversing valve 3, and an auxiliary winch motor 4 is connected to the valve block 5, and the auxiliary winch motor 4 is used to drive the winch 6 to work; the reversing valve 3 is provided with a left position, a middle position and a right position. When the reversing valve 3 is in the middle position, the auxiliary winch motor 4 does not work. When the reversing valve 3 is in the left position, the auxiliary winch motor 4 reverses, and when the reversing valve 3 is in the right position, the auxiliary winch motor 4 rotates forward.

[0026] This system diverts flow from the main pump 1, passes through the pilot control valve 2, and then passes through the reversing valve 3 to reach the auxiliary winch motor 4, thereby driving the winch 6 to work. Specifically, when the ramming machine is working normally, the reversing valve 3 is in the middle position, and the hydraulic oil directly returns to the oil tank 8. At this time, the auxiliary winch system does not work; when the pilot control valve 2 controls the reversing valve 3 to be in the left position, the auxiliary winch motor 4 reverses, driving the winch 6 to reverse; when the pilot control valve 2 controls the reversing valve 3 to the right position, the auxiliary winch motor 4 rotates forward, driving the winch 6 to rotate forward; that is, the wire rope in this auxiliary winch system is normally connected to the unhooker, and this auxiliary winch does not work at ordinary times. When the wire rope on the unhooking device is accidentally disconnected and cannot be unhooked normally, the ramming machine operator can urgently start this auxiliary winch, use this auxiliary winch to open the unhooking device, and let the rammer fall freely to avoid accidents, thereby greatly improving safety; the entire system can ensure that the auxiliary winch works smoothly, safely and stably.

[0027] During the specific installation, the auxiliary winch mechanism is installed under the base arm, and the auxiliary winch wire rope is connected to the unhooker. The installation is simple and the structure is compact. The hydraulic system diverts hydraulic power from the main hydraulic system. When the rammer is working normally, this system does not work and there is no power loss.

[0028] Embodiment 2:

[0029] Reference Figure 1 A hydraulic auxiliary winch system for a machine-liquid integrated tamping machine includes a main pump 1, a winch 6 and an oil tank 8, and also includes a reversing valve 3 connected to the main pump 1; it also includes a valve block 5 connected to the reversing valve 3, and an auxiliary winch motor 4 is connected to the valve block 5, and the auxiliary winch motor 4 is used to drive the winch 6 to work; the reversing valve 3 is provided with a left position, a middle position and a right position. When the reversing valve 3 is in the middle position, the auxiliary winch motor 4 does not work. When the reversing valve 3 is in the left position, the auxiliary winch motor 4 reverses, and when the reversing valve 3 is in the right position, the auxiliary winch motor 4 rotates forward.

[0030] The valve block 5 includes a shuttle valve 501 , a balance valve 502 and a one-way throttle valve 503 which are connected to each other.

[0031] Among them, shuttle valve 501 is a straight-stroke valve, which is a valve that combines the valve body and the actuator into one; its advantages are small size and easy installation, and the special internal piston structure makes the medium pressure have almost no more resistance interference to the piston, thereby achieving fast switching and excellent quality of small pressure loss; the balancing valve 502 can be used to adjust the relative balance of pressure on both sides, or to achieve flow balance by diversion; the one-way throttle valve 503 is a parallel combination of a throttle valve and a one-way valve. The one-way throttle valve 503 is widely used in the speed regulation and delay circuits of hydraulic control systems, and can be used as a one-way valve or a throttle valve.

[0032] It also includes a pilot control valve 2, which is connected to the reversing valve 3. The pilot control valve 2 is used to control the reversing valve 3. When the pilot control valve 2 controls the reversing valve 3 to be in the left position, the auxiliary winch motor 4 reverses, driving the winch 6 to reverse; when the pilot control valve 2 controls the reversing valve 3 to be in the right position, the auxiliary winch motor 4 rotates forward, driving the winch 6 to rotate forward; that is, the wire rope in this auxiliary winch system is normally connected to the unhooker, and the auxiliary winch does not work at ordinary times. When the wire rope on the unhooker is accidentally disconnected and cannot be unhooked normally, the rammer operator can urgently start the auxiliary winch, use the auxiliary winch to open the unhooker, and let the rammer fall freely to avoid accidents, thereby greatly improving safety; the entire system can ensure that the auxiliary winch works smoothly, safely and stably.

[0033] A return pipe is provided between the reversing valve 3 and the oil tank 8, and a brake valve 101 is provided on the return pipe to realize the opening and closing of the return pipe.

[0034] A planetary gear reducer 601 is provided inside the winch 6, and the input shaft of the planetary gear reducer 601 is connected to the output end of the auxiliary winch motor 4. The output end of the planetary gear reducer 601 drives the winch 6 to work, which can effectively reduce the speed, thereby making the winch work more smoothly.

[0035] It also includes a normally closed brake 7 for controlling the start and stop of the auxiliary hoisting motor 4.

[0036] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A hydraulic auxiliary winch system for a mechanical-hydraulic integrated dynamic tamping machine, comprising a main pump (1), a winch (6) and an oil tank (8), characterized in that: Also includes: A reversing valve (3) connected to the main pump (1); A valve block (5) is connected to the reversing valve (3); the valve block (5) is connected to an auxiliary hoisting motor (4), and the auxiliary hoisting motor (4) is used to drive the hoisting machine (6) to work; The reversing valve (3) is provided with a left position, a middle position and a right position. When the reversing valve (3) is in the middle position, the auxiliary hoisting motor (4) does not work. When the reversing valve (3) is in the left position, the auxiliary hoisting motor (4) rotates in the reverse direction. When the reversing valve (3) is in the right position, the auxiliary hoisting motor (4) rotates in the forward direction.

2. The hydraulic auxiliary winch system for a mechanical-hydraulic integrated dynamic tamping machine according to claim 1, characterized in that: The valve block (5) comprises a shuttle valve (501), a balance valve (502) and a one-way throttle valve (503) which are connected to each other.

3. The hydraulic auxiliary winch system for a hydraulic-hydraulic integrated compacting machine according to claim 1, characterized in that: It also comprises a pilot control valve (2), wherein the pilot control valve (2) is connected to the reversing valve (3), and the pilot control valve (2) is used to control the reversing valve (3).

4. The hydraulic auxiliary winch system for a hydraulic-hydraulic integrated dynamic tamping machine according to claim 3, characterized in that: A return pipe is provided between the reversing valve (3) and the oil tank (8), and a brake valve (101) is provided on the return pipe.

5. The hydraulic auxiliary winch system for a mechanical-hydraulic integrated dynamic tamping machine according to claim 1, characterized in that: The hoist (6) is provided with a planetary gear reducer (601), the input shaft of the planetary gear reducer (601) is connected to the output end of the auxiliary hoist motor (4), and the output end of the planetary gear reducer (601) drives the hoist (6) to work.

6. The hydraulic auxiliary winch system for a hydraulic-hydraulic integrated compacting machine according to claim 5, characterized in that: It also includes a normally closed brake (7) for controlling the start and stop of the auxiliary hoisting motor (4).

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