An on-track pusher

Abstract

This utility model discloses an on-orbit moving machine in the field of hydraulic equipment technology, comprising an oil tank, an oil pump, a thruster cylinder, and a clamping cylinder. The oil pump is connected to an inlet main pipe and a return main pipe via a reversing valve. The inlet main pipe is connected to a thruster inlet pipe and a clamping inlet pipe. A first check valve is installed on the thruster inlet pipe, and the clamping inlet pipe and the thruster inlet pipe are connected via a clamping overflow valve. The return main pipe is connected to a thruster outlet pipe and a clamping outlet pipe. A second check valve is installed on the thruster outlet pipe, and the thruster outlet pipe and the clamping outlet pipe are connected via a thruster overflow valve. This utility model clamps first and then moves, then releases and then pulls back, repeating this cycle to achieve continuous cyclic moving of heavy objects, ensuring effective moving stroke, preventing loosening and slippage, and ensuring the clamping cylinder is not damaged when fully released and retracted, thus protecting the safe operation of the device.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic equipment technology, specifically to an on-orbit moving machine. Background Technology

[0002] An on-orbit moving machine, or simply a moving machine, consists of two components: a clamping device and a hydraulic cylinder. It is an effective tool for short-distance moving and installation of heavy objects. Due to its advantages such as high load-bearing capacity, good stability, and continuous movement, it can replace traditional methods of moving heavy objects using sleepers and rollers within its effective working range, achieving safety, labor-saving, time-saving, and cost-effectiveness. However, in existing moving machines, the oil injection and return of the clamping device and hydraulic cylinder operate synchronously during continuous movement, which has the following drawbacks: When the hydraulic cylinder is ready to push a heavy object, oil is injected into both the clamp and the hydraulic cylinder at the same time. Often, the hydraulic cylinder has already pushed forward before the clamp is fully clamped, causing the position that should have been clamped to shift backward, shortening the forward stroke of the hydraulic cylinder, and thus affecting the overall pushing stroke.

[0003] When recovering the hydraulic cylinder and clamp, the hydraulic cylinder and clamp are unloaded at the same time. Since one end of the hydraulic cylinder is connected to the heavy object, the hydraulic cylinder is already moving forward while the clamp is not fully released, which poses a risk of damage to the hydraulic cylinder or the clamp.

[0004] Based on this, the present invention designs an on-orbit moving machine to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an on-rail moving machine to solve the problems mentioned in the background art, such as the clamping device and the hydraulic cylinder not being able to guarantee sequential start-up, slippage affecting the pushing stroke and damage to the hydraulic cylinder.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oil tank, an oil pump, a propeller cylinder, and a clamping cylinder. The oil pump is connected to an inlet main pipe and a return main pipe via a reversing valve. The inlet main pipe is connected to a propulsion inlet pipe and a clamping inlet pipe. A first check valve is installed on the propulsion inlet pipe. The clamping inlet pipe and the propulsion inlet pipe are connected via a clamping overflow valve. The return main pipe is connected to a propulsion outlet pipe and a clamping outlet pipe. A second check valve is installed on the propulsion outlet pipe. The propulsion outlet pipe and the clamping outlet pipe are connected via a propeller overflow valve.

[0007] As a further embodiment of this utility model, the first one-way valve is used to block the propulsion oil inlet pipe so that after the hydraulic oil is introduced into the clamping oil inlet pipe, it is then introduced into the propeller cylinder through the clamping overflow valve, thereby realizing the sequential extension of the clamping cylinder and the propeller cylinder.

[0008] As a further embodiment of this utility model, the second one-way valve is used to block the push oil outlet pipe so that after the hydraulic oil is introduced into the clamping oil outlet pipe, it is then introduced into the pusher cylinder through the pusher overflow valve, thereby realizing the sequential retraction of the clamping cylinder and the pusher cylinder.

[0009] As a further embodiment of this utility model, the oil pump is mounted on an oil tank, the oil tank being used to store and supply hydraulic oil to the oil pump, and a control valve is installed between the oil tank and the oil pump.

[0010] As a further embodiment of this invention, the control valve can be used to control the threshold values ​​of the clamp overflow valve and the pusher overflow valve.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The clamping device first clamps the object by driving the clamping cylinder, then pushes it by driving the pusher cylinder. This process of clamping and pushing occurs repeatedly. Then, the clamping cylinder is driven first to release the object, followed by the pusher cylinder to retract it. This cycle ensures continuous and effective movement of the object, preventing slippage and ensuring the clamp is fully released before retracting without damaging the cylinder. This protects the device and ensures safe operation.

[0012] Meanwhile, the threshold values ​​of the clamp overflow valve and the pusher overflow valve can be adjusted by controlling the valve to achieve the movement of heavy objects under different weight conditions, which is more flexible and convenient. Attached Figure Description

[0013] Figure 1 This is a schematic diagram showing the extended state of the clamping cylinder and the thruster cylinder of this utility model; Figure 2 This is a schematic diagram of the clamping cylinder and the thruster cylinder of this utility model in their retracted state; Figure 3 This is a schematic diagram of the overall structure of this utility model.

[0014] The attached diagram lists the components represented by each number as follows: 1. Oil pump; 2. Reversing valve; 3. Oil inlet main pipe; 4. Oil return main pipe; 5. Propulsion oil inlet pipe; 6. Clamping oil inlet pipe; 7. First check valve; 8. Clamping relief valve; 9. Propulsion oil outlet pipe; 10. Clamping oil outlet pipe; 11. Second check valve; 12. Propulsion relief valve; 13. Clamping cylinder; 14. Propulsion cylinder; 15. Control valve; 16. Oil tank. Detailed Implementation

[0015] Please see Figure 1-3The technical solution provided by this utility model is as follows: it includes an oil tank 16, an oil pump 1, a thruster cylinder 14, and a clamping cylinder 13. The oil pump 1 is connected to an oil inlet main pipe 3 and a return oil main pipe 4 through a reversing valve 2. The oil inlet main pipe 3 is connected to a thruster oil inlet pipe 5 and a clamping oil inlet pipe 6. A first check valve 7 is installed on the thruster oil inlet pipe 5. The clamping oil inlet pipe 6 and the thruster oil inlet pipe 5 are connected through a clamping overflow valve 8. The return oil main pipe 4 is connected to a thruster oil outlet pipe 9 and a clamping oil outlet pipe 10. A second check valve 11 is installed on the thruster oil outlet pipe 9. The thruster oil outlet pipe 9 and the clamping oil outlet pipe 10 are connected through a thruster overflow valve 12.

[0016] This utility model connects the oil tank 16 and the oil pump 1 via control valve 15, adjusts the threshold values ​​of the clamp overflow valve 8 and the thruster overflow valve 12 according to the load, and connects via reversing valve 2 during propulsion. Figure 1 As shown in the oil circuit, the internal hydraulic oil first enters the clamping cylinder 13 through the push-in oil pipe 3, pushing its piston outward, thereby extending the working end of the clamping cylinder 13 to achieve the function of clamping the track; at this time, due to the presence of the first one-way valve 7, the hydraulic oil cannot directly enter the pusher cylinder 14.

[0017] When oil enters the clamping cylinder 13 and reaches the clamping track, as oil continues to enter through the push oil inlet pipe 5, the oil pressure exceeds the threshold of the clamping overflow valve 8. The clamping overflow valve 8 then overflows hydraulic oil into the pusher cylinder 14, which in turn pushes the piston of the pusher cylinder 14 outward, thereby moving the end connected to the output end of the pusher cylinder 14 and thus moving the heavy object. Through the above process, the process of clamping and fixing before pushing and displacing is achieved. By using the overflow of the clamping overflow valve 8 to drive the pusher cylinder 14, the clamping cylinder 13 can be fully clamped and fixed before pushing, which enhances the reliability of the operation. During the operation, there will be no slippage or the movement distance can be accurately controlled.

[0018] In the above process, the oil returns through the second one-way valve 11 by clamping the oil outlet pipe 10 and pushing the oil outlet pipe 9.

[0019] Connect via reversing valve 2 Figure 2 When the oil circuit shown is in operation, hydraulic oil is sent into the hydraulic system through the return oil main pipe 4 and the clamping oil outlet pipe 10, causing the output end of the clamping cylinder 13 to retract, thereby causing the working end of the clamping cylinder 13 to release the track. When the clamping cylinder 13 is fully retracted, as the clamping oil outlet pipe 10 continues to supply oil, the oil pressure exceeds the threshold of the thruster overflow valve 12, and hydraulic oil is introduced into the thruster cylinder 14 through the thruster overflow valve 12, thereby causing the output end of the thruster cylinder 14 to retract, pulling the released clamp forward a distance, thereby realizing the next step of pushing. At this time, due to the presence of the second check valve 11, the hydraulic oil cannot directly enter the thruster cylinder 14.

[0020] The clamping device first clamps the object by driving the clamping cylinder 13, then drives the pusher cylinder 14 to move it. The clamping and pushing occur in sequence. Then, the clamping cylinder 13 is driven to release the object, and the pusher cylinder 14 is driven to retract it. The object is released and then pulled back in sequence. This cycle is repeated to continuously move the object, ensuring an effective moving stroke and preventing loosening or slippage. The clamp is fully released and then retracted without damaging the cylinder, thus protecting the safe operation of the device.

[0021] Meanwhile, the threshold values ​​of the clamp overflow valve 8 and the pusher overflow valve 12 can be adjusted by the control valve 15 to realize the movement of heavy objects under different weight conditions, which is more flexible and convenient.

Claims

1. An on-orbit moving machine, comprising an oil tank (16), an oil pump (1), a thruster cylinder (14), and a clamping cylinder (13), characterized in that: The oil pump (1) is connected to the oil inlet main pipe (3) and the oil return main pipe (4) respectively through the reversing valve (2). The oil inlet main pipe (3) is connected to the propulsion oil inlet pipe (5) and the clamping oil inlet pipe (6). The propulsion oil inlet pipe (5) is equipped with a first check valve (7). The clamping oil inlet pipe (6) and the propulsion oil inlet pipe (5) are connected through the clamping overflow valve (8). The oil return main pipe (4) is connected to the propulsion oil outlet pipe (9) and the clamping oil outlet pipe (10). The propulsion oil outlet pipe (9) is equipped with a second check valve (11). The propulsion oil outlet pipe (9) and the clamping oil outlet pipe (10) are connected through the propulsion overflow valve (12).

2. The on-orbit moving machine according to claim 1, characterized in that: The first one-way valve (7) is used to block the propulsion oil inlet pipe (5) so that the hydraulic oil in the clamping oil inlet pipe (6) is introduced into the propeller cylinder (14) through the clamping overflow valve (8), thereby realizing the sequential extension of the clamping cylinder (13) and the propeller cylinder (14).

3. The on-orbit moving machine according to claim 1, characterized in that: The second check valve (11) is used to block the push oil outlet pipe (9) so that the hydraulic oil in the clamping oil outlet pipe (10) is passed through the pusher overflow valve (12) and then into the pusher cylinder (14), so as to realize the sequential retraction of the clamping cylinder (13) and the pusher cylinder (14).

4. The on-orbit moving machine according to claim 1, characterized in that: The oil pump (1) is mounted on the oil tank (16), which is used to store and supply hydraulic oil to the oil pump (1). A control valve (15) is installed between the oil tank (16) and the oil pump (1).

5. The on-orbit moving machine according to claim 4, characterized in that: The control valve (15) can be used to control the threshold values ​​of the clamp overflow valve (8) and the thruster overflow valve (12).

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