Hydraulic device for subway rail layer

Abstract

The utility model relates to a hydraulic device, in particular to a hydraulic device for a subway rail layer. The hydraulic device for the subway track layer comprises two sets of hydraulic oil outlet systems, one set of hydraulic oil outlet system is composed of a first motor, a plunger pump, a plunger pump oil suction pipe and a plunger pump oil outlet pipe, and the other set of hydraulic oil outlet system is composed of a second motor, a gear pump, a gear pump oil suction pipe and a gear pump oil outlet pipe. By arranging the two sets of hydraulic oil outlet systems, when a certain component in one set of hydraulic oil outlet system is damaged, the other set of hydraulic oil outlet system can be started to work, so that normal work of the hydraulic device is guaranteed, non-stop operation of the subway track layer can be guaranteed, normal and smooth construction is guaranteed, and normal construction progress cannot be delayed. In addition, the two hydraulic oil outlet systems can work at the same time, so that it is guaranteed that at least two subway rail layers work at the same time.

Description

Technical Field

[0001] This utility model relates to a hydraulic device, specifically a hydraulic device for a subway track laying machine. Background Technology

[0002] A subway track-laying machine is a large piece of equipment commonly used in subway construction. It mainly consists of the following components: a traveling mechanism, outriggers, a lifting device, a hoisting mechanism, a main beam mechanism, lifting hydraulic cylinders, telescopic hydraulic cylinders, a cable reel, and a hydraulic control system. The lifting device and hoisting mechanism both use lifting hydraulic cylinders, while the main beam mechanism uses telescopic hydraulic cylinders. Therefore, hydraulic cylinders play a crucial role in the entire use and operation of the subway track-laying machine. Currently, the hydraulic workstations that supply hydraulic oil to the hydraulic cylinders in subway track-laying machines can only ensure the operation of one machine. When multiple track-laying machines need to operate simultaneously, the existing hydraulic workstations cannot handle this. Furthermore, if any component in the hydraulic oil supply system of the hydraulic workstation malfunctions, the machine must be shut down for repairs. During this time, the subway track-laying machine cannot operate normally, leading to delays and hindering the smooth progress of construction. Utility Model Content

[0003] In order to solve the problems existing in the prior art, this utility model provides a hydraulic device for subway track laying machines.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0005] This utility model provides a hydraulic device for a subway track-laying machine, comprising:

[0006] tank;

[0007] Fuel tank cover plate installed at the upper end of the fuel tank;

[0008] Motor 1 and Motor 2 are installed on the fuel tank cover plate;

[0009] A plunger pump connected to the motor;

[0010] A plunger pump suction pipe and a plunger pump discharge pipe are respectively connected to both ends of the plunger pump; the plunger pump suction pipe extends into the oil tank.

[0011] A gear pump connected to the second motor;

[0012] A gear pump suction pipe and a gear pump discharge pipe are respectively connected to both ends of the gear pump; the gear pump suction pipe extends into the oil tank.

[0013] An oil suction filter is connected to the end of the gear pump's suction pipe that extends into the oil tank and the end of the plunger pump's suction pipe that extends into the oil tank.

[0014] An integrated valve block that is connected to the oil outlet pipe of the plunger pump and the oil outlet pipe of the gear pump, respectively;

[0015] An air-cooled oil cooler installed on the oil tank cover plate;

[0016] One return oil pipe is connected to the oil inlet of the air-cooled oil cooler and the integrated valve block respectively;

[0017] The second oil return pipe is connected to the oil outlet of the air-cooled oil cooler;

[0018] A return oil filter is connected to the second return oil pipe; the return oil filter extends into the oil tank.

[0019] Furthermore, the hydraulic device for a subway track laying machine provided by this utility model also includes an oil tank seat installed at the bottom of the oil tank.

[0020] Furthermore, the integrated valve block includes: a three-position four-way solenoid directional valve, a two-position four-way solenoid directional valve, a stacked hydraulic control check valve, a stacked balance valve, a stacked double check throttle valve, a straight connector, a right-angle connector, and a pilot-operated relief valve; the integrated valve block is connected to each hydraulic cylinder in the subway track laying machine.

[0021] Furthermore, the hydraulic device for a subway track laying machine provided by this utility model also includes an oil tank cleaning cover disposed on the side wall of the oil tank, and an oil tank cleaning cover sealing ring is installed between the oil tank cleaning cover and the oil tank.

[0022] Furthermore, the hydraulic device for a subway track-laying machine provided by this utility model also includes a level gauge installed inside the oil tank.

[0023] Furthermore, the hydraulic device for a subway track laying machine provided by this utility model also includes a ball valve installed on the side wall of the oil tank.

[0024] Furthermore, the hydraulic device for a subway track laying machine provided by this utility model also includes a pressure gauge and a pressure gauge switch installed on the integrated valve block via a straight connector two, and the pressure gauge is turned on and off via the pressure gauge switch.

[0025] Furthermore, the second oil return pipe is connected to the oil outlet of the air-cooled oil cooler via a right-angle connector; the first oil return pipe is connected to the oil inlet of the air-cooled oil cooler via a right-angle connector.

[0026] Furthermore, the hydraulic device for a subway track laying machine provided by this utility model also includes an air filter installed on the oil tank cover, with the lower end of the air filter extending into the oil tank.

[0027] Furthermore, a first cap is installed at the connection between the gear pump suction pipe and the oil tank; a second cap is installed at the connection between the plunger pump suction pipe and the oil tank.

[0028] The beneficial effects of this utility model are:

[0029] This utility model provides a hydraulic device for a subway track-laying machine, comprising two hydraulic oil delivery systems. One hydraulic oil delivery system consists of a motor, a plunger pump, a plunger pump suction pipe, and a plunger pump discharge pipe. The other hydraulic oil delivery system consists of a motor, a gear pump, a gear pump suction pipe, and a gear pump discharge pipe. By setting up two hydraulic oil delivery systems, when a component in one system fails, the other system can be activated, ensuring the normal operation of the hydraulic device. This guarantees uninterrupted operation of the subway track-laying machine, ensuring smooth and normal construction progress without delays. Furthermore, both hydraulic oil delivery systems can operate simultaneously, allowing at least two subway track-laying machines to work concurrently. Attached Figure Description

[0030] Figure 1 A schematic diagram (front view) of a hydraulic device for a subway track laying machine provided by this utility model.

[0031] Figure 2 A top view of the structure of a hydraulic device for a subway track laying machine provided by this utility model.

[0032] In the diagram, 1. Oil tank, 2. Oil tank base, 3. Air-cooled oil cooler, 4. Three-position four-way solenoid directional valve, 5. Two-position four-way solenoid directional valve, 6. Stacked hydraulic check valve, 7. Stacked balance valve, 8. Stacked double one-way throttle valve, 9. Straight-through connector one, 10. Integrated valve block, 11. Right-angle connector one, 12. Pilot-operated relief valve, 13. Oil tank cover, 14. Return oil pipe one, 15. Return oil filter, 16. Oil tank cleaning cover sealing ring, 17. Oil tank cleaning cover, 1 8. Level gauge; 19. Ball valve; 20. Suction filter; 21. Pressure gauge; 22. Straight connector 2; 23. Pressure gauge switch; 24. Return oil pipe 2; 25. Right angle connector 2; 26. Cover 1; 27. Motor 1; 28. Motor 2; 29. ​​Plunger pump; 30. Plunger pump suction pipe; 31. Plunger pump outlet pipe; 32. Gear pump; 33. Gear pump suction pipe; 34. Gear pump outlet pipe; 35. Right angle connector 3; 36. Air filter; 37. Cover 2. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings.

[0034] See Figure 1 and Figure 2As shown, the hydraulic device for a subway track-laying machine provided by this utility model mainly consists of the following components:

[0035] 1. Oil tank; 2. Oil tank base; 3. Air-cooled oil cooler; 4. Three-position four-way solenoid directional valve; 5. Two-position four-way solenoid directional valve; 6. Stacked hydraulic check valve; 7. Stacked balance valve; 8. Stacked double one-way throttle valve; 9. Straight connector; 10. Integrated valve block; 11. Right-angle connector; 12. Pilot-operated relief valve; 13. Oil tank cover; 14. Oil return pipe; 15. Oil return filter; 16. Oil tank cleaning cover sealing ring; 17. Liquid... 18. Position gauge, 19. Ball valve, 20. Suction filter, 21. Pressure gauge, 22. Straight connector 2, 23. Pressure gauge switch, 24. Return oil pipe 2, 25. Right angle connector 2, 26. Cover 1, 27. Motor 1, 28. Motor 2, 29. Plunger pump, 30. Plunger pump suction pipe, 31. Plunger pump outlet pipe, 32. Gear pump, 33. Gear pump suction pipe, 34. Gear pump outlet pipe, 35. Right angle connector 3, 36. Air filter, and 37. Cover 2.

[0036] The oil tank seat 2 is installed at the bottom of the oil tank 1, and the oil tank seat 2 serves to stabilize the oil tank 1; the oil tank cover 13 is installed at the top of the oil tank 1, and the oil tank cover 13 is mainly used to install other components in the device.

[0037] Motor 27 is mounted on the oil tank cover 13. Plunger pump 29 is connected to motor 27, which drives the plunger pump 29. One end of the plunger pump suction pipe 30 is fixed to the oil tank cover 13 via cover 37, and this end extends into the oil tank 1. The other end of the plunger pump suction pipe 30 is connected to the plunger pump 29. One end of the plunger pump outlet pipe 31 is connected to the plunger pump 29, and the other end is connected to the integrated valve block 10. Driven by motor 27, the plunger pump 29 draws hydraulic oil from the oil tank 1 through the plunger pump suction pipe 30 into the plunger pump outlet pipe 31, and then outputs it to the hydraulic cylinders in the subway track-laying machine via the integrated valve block 10.

[0038] Motor 28 is mounted on the oil tank cover plate 13. Gear pump 32 is connected to motor 28, and motor 28 can drive gear pump 32 to work. One end of gear pump suction pipe 33 is fixed to oil tank cover plate 13 by cover 26, and this end of gear pump suction pipe 33 extends into oil tank 1. The other end of gear pump suction pipe 33 is connected to gear pump 32. One end of gear pump outlet pipe 34 is connected to gear pump 32, and the other end is connected to integrated valve block 10. Oil tank 1 is also equipped with suction filter 20. Suction filter 20 is connected to the end of gear pump suction pipe 33 that extends into oil tank 1 and the end of plunger pump suction pipe 30 that extends into oil tank 1. Suction filter 20 can filter the hydraulic oil in oil tank 1, filter out impurities in hydraulic oil, and ensure the quality of supplied hydraulic oil. The gear pump 32 is driven by motor 28. Under the action of gear pump 32, the hydraulic oil in oil tank 1 enters gear pump outlet pipe 34 through gear pump suction pipe 33, and is output to each hydraulic cylinder in the subway track laying machine through integrated valve block 10.

[0039] This utility model provides a hydraulic device for a subway track-laying machine, comprising two hydraulic oil delivery systems. One hydraulic oil delivery system consists of a motor 27, a plunger pump 29, a plunger pump suction pipe 30, and a plunger pump discharge pipe 31. The other hydraulic oil delivery system consists of a motor 28, a gear pump 32, a gear pump suction pipe 33, and a gear pump discharge pipe 34. By setting up two hydraulic oil delivery systems, when a component in one hydraulic oil delivery system fails, the other hydraulic oil delivery system can be activated to continue working, thereby ensuring the normal operation of the hydraulic device. This guarantees uninterrupted operation of the subway track-laying machine, ensuring smooth and normal construction progress without delays. Furthermore, both hydraulic oil delivery systems can operate simultaneously, ensuring that at least two subway track-laying machines can work at the same time.

[0040] The air-cooled oil cooler 3 is installed on the oil tank cover plate 13; one end of the return oil pipe 14 is connected to the integrated valve block 10, and the other end is connected to the oil inlet of the air-cooled oil cooler 3 through the right-angle connector 35; one end of the return oil pipe 24 is connected to the oil outlet of the air-cooled oil cooler 3 through the right-angle connector 25, and the other end is connected to the return oil filter 15, the lower end of the return oil filter 15 extending into the oil tank 1. When the air-cooled oil cooler 3 is started, the hydraulic oil enters the air-cooled oil cooler 3 through the return oil pipe 14 for cooling. After cooling, the hydraulic oil then enters the return oil filter 15 through the return oil pipe 24 for impurity filtration. Finally, the cooled and filtered hydraulic oil is returned to the oil tank 1.

[0041] The integrated valve block 10 mainly includes: a three-position four-way solenoid directional valve 4, a two-position four-way solenoid directional valve 5, a stacked hydraulic control check valve 6, a stacked balance valve 7, a stacked double one-way throttle valve 8, a straight connector 9, a right-angle connector 11, and a pilot-operated relief valve 12. The integrated valve block 10 is connected to the hydraulic cylinders in the subway track-laying machine. For example, different hydraulic cylinders in one subway track-laying machine can be connected through the three-position four-way solenoid directional valve 4 and the two-position four-way solenoid directional valve 5, or different hydraulic cylinders in at least two subway track-laying machines can be connected through the three-position four-way solenoid directional valve 4 and the two-position four-way solenoid valve 5, thereby ensuring the normal operation of the subway track-laying machine. The stacked hydraulic control check valve 6 is implemented using existing technology, and its main functions are: to lock the hydraulic cylinder, maintain oil circuit pressure, and discharge oil at a large flow rate. The stacked balance valve 7 is implemented using existing technology, and its main function is to reduce or balance the flow rate, so that the pressure on both sides of the pipeline is in a balanced state. The superimposed dual one-way throttle valve 8 is implemented using existing technology, and its main function is to achieve dual one-way flow regulation. The pilot-operated relief valve 12 is implemented using existing technology, and its main function is to provide safety protection. When the load exceeds the specified limit (system pressure exceeds the set pressure), it opens to overflow and provide overload protection, preventing the system pressure from increasing further. Straight-through connector 9 and right-angle connector 11 serve as spare connectors for connecting to external cleaning equipment, allowing the integrated valve block 10 to be cleaned using the cleaning equipment.

[0042] As a preferred embodiment, the hydraulic device for a subway track-laying machine of this utility model further includes an oil tank cleaning cover 17 disposed on the side wall of the oil tank 1, and an oil tank cleaning cover sealing ring 16 is installed between the oil tank cleaning cover 17 and the oil tank 1. The oil tank 1 can be cleaned by opening the oil tank cleaning cover 17.

[0043] As a preferred embodiment, the hydraulic device for a subway track-laying machine of this utility model also includes a level gauge 18 installed inside the oil tank 1. The level gauge 18 allows for real-time monitoring of the hydraulic oil level in the oil tank 1, facilitating timely replenishment of new oil.

[0044] As a preferred embodiment, the hydraulic device for a subway track-laying machine of this utility model also includes a ball valve 19 installed on the side wall of the oil tank 1. The ball valve 19 can be connected to external cleaning equipment to clean the inside of the oil tank 1 and remove impurities.

[0045] As a preferred embodiment, the hydraulic device for a subway track-laying machine of this utility model further includes a pressure gauge 21 and a pressure gauge switch 23 mounted on the integrated valve block 10 via a straight connector 22. The pressure gauge switch 23 is used to open and close the pressure gauge 21. The pressure gauge 21 monitors the internal pressure of the integrated valve block 10 in real time to prevent hydraulic oil leakage.

[0046] As a preferred embodiment, the hydraulic device for a subway track-laying machine of this utility model also includes an air filter 36 installed on the oil tank cover plate 13, with the lower end of the air filter 36 extending into the oil tank 1. The air filter 36 filters out metal particles and impurities in the hydraulic oil, protecting the cleanliness of the oil circulation system and ensuring the normal and safe operation of the device.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hydraulic device for a subway track-laying machine, characterized in that, include: Fuel tank (1); The oil tank cover plate (13) is installed on the upper end of the oil tank (1); Motor 1 (27) and Motor 2 (28) are installed on the oil tank cover plate (13); A plunger pump (29) connected to the motor (27); The plunger pump suction pipe (30) and plunger pump outlet pipe (31) are respectively connected to both ends of the plunger pump (29); the plunger pump suction pipe (30) extends into the oil tank (1); Gear pump (32) connected to the second motor (28); The gear pump suction pipe (33) and the gear pump discharge pipe (34) are respectively connected to both ends of the gear pump (32); the gear pump suction pipe (33) extends into the oil tank (1); An oil suction filter (20) is connected to the end of the gear pump suction pipe (33) that extends into the oil tank (1) and the end of the plunger pump suction pipe (30) that extends into the oil tank (1); An integrated valve block (10) is connected to the oil outlet pipe (31) of the plunger pump and the oil outlet pipe (34) of the gear pump respectively; An air-cooled oil cooler (3) is installed on the oil tank cover plate (13); Oil return pipe 1 (14) is connected to the oil inlet of the air-cooled oil cooler (3) and the integrated valve block (10) respectively; Oil return pipe 2 (24) connected to the oil outlet of the air-cooled oil cooler (3); A return oil filter (15) is connected to the return oil pipe (24); the return oil filter (15) extends into the oil tank (1).

2. The hydraulic device for a subway track-laying machine according to claim 1, characterized in that, It also includes a tank seat (2) installed at the bottom of the tank (1).

3. The hydraulic device for a subway track-laying machine according to claim 1, characterized in that, The integrated valve block (10) includes: a three-position four-way solenoid directional valve (4), a two-position four-way solenoid directional valve (5), a stacked hydraulic control check valve (6), a stacked balance valve (7), a stacked double check throttle valve (8), a straight connector (9), a right-angle connector (11), and a pilot-operated relief valve (12); the integrated valve block (10) is connected to each hydraulic cylinder in the subway track laying machine.

4. The hydraulic device for a subway track-laying machine according to claim 1, characterized in that, It also includes a tank cleaning cover (17) disposed on the side wall of the tank (1), and a tank cleaning cover sealing ring (16) is installed between the tank cleaning cover (17) and the tank (1).

5. A hydraulic device for a subway track-laying machine according to claim 1, characterized in that, It also includes a level gauge (18) installed inside the oil tank (1).

6. The hydraulic device for a subway track-laying machine according to claim 1, characterized in that, It also includes a ball valve (19) installed on the side wall of the oil tank (1).

7. A hydraulic device for a subway track-laying machine according to claim 1, characterized in that, It also includes a pressure gauge (21) and a pressure gauge switch (23) mounted on the integrated valve block (10) via a straight connector two (22), through which the pressure gauge (21) is turned on and off.

8. A hydraulic device for a subway track-laying machine according to claim 1, characterized in that, The second oil return pipe (24) is connected to the oil outlet of the air-cooled oil cooler (3) through the second right-angle connector (25); the first oil return pipe (14) is connected to the oil inlet of the air-cooled oil cooler (3) through the third right-angle connector (35).

9. A hydraulic device for a subway track-laying machine according to claim 1, characterized in that, It also includes an air filter (36) installed on the fuel tank cover (13), the lower end of which extends into the fuel tank (1).

10. A hydraulic device for a subway track-laying machine according to claim 1, characterized in that, A first cap (26) is installed at the connection between the gear pump suction pipe (33) and the oil tank (1); a second cap (37) is installed at the connection between the plunger pump suction pipe (30) and the oil tank (1).

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