Device for eliminating jamming of valve core of servo valve of oil pump

Abstract

The utility model provides a device for eliminating jamming of a valve element of an oil pump servo valve, and relates to the technical field of servo valves. The device for eliminating jamming of the valve element of the oil pump servo valve comprises a heating box body, a heater is installed in the heating box body, a valve element body is placed on the inner side of the heating box body, a cleaning structure is arranged on one side of the heating box body, and the cleaning structure comprises a U-shaped frame. According to the device for eliminating jamming of the valve element of the oil pump servo valve, the reciprocating lead screw is driven by the driving motor to rotate, so that the T-shaped block horizontally reciprocates, the cleaning frame horizontally reciprocates along with the T-shaped block, the valve element body placed at the top of the arc-shaped net plate is shoveled up through the shoveling plate, and then impurities on the surface of the valve element body are cleaned through bristles on the inner side of the cleaning frame; and the cleaned impurities fall into a collecting drawer through an arc-shaped net plate to be stored, so that the impurities are treated at a time, manual cleaning by people is not needed, the device is easy and convenient to use, and the using effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to an anti-sticking device, specifically a device for eliminating the sticking of the spool of an oil pump servo valve, and belongs to the technical field of servo valves. Background Technique

[0002] An oil pump servo valve is a valve used to control the output flow of an oil pump in a hydraulic system. By adjusting the displacement of the oil pump, it can achieve precise control of the pressure, flow, and direction of the hydraulic system. The oil pump servo valve usually consists of an electromagnetic valve and a proportional valve. The electromagnetic valve is responsible for controlling the opening and closing of the proportional valve, and the proportional valve adjusts the displacement of the oil pump according to the signal of the electromagnetic valve. By changing the displacement of the oil pump, the working pressure and flow of the hydraulic system can be controlled. It is widely used in hydraulic systems in the fields of machinery, engineering, aviation, aerospace, etc.

[0003] However, during the use of the spool of the existing oil pump servo valve, some impurities may adsorb on the spool, resulting in difficult movement of the spool, and thus the situation of the oil pump servo valve getting stuck. Usually, people need to regularly take out the spool of the oil pump servo valve for manual cleaning, which is rather troublesome during use and reduces the practicability of the device. Content of the Utility Model

[0004] (1) Technical Problem to be Solved

[0005] The purpose of the utility model is to provide a device for eliminating the sticking of the spool of an oil pump servo valve to solve the problem that in the prior art, people need to regularly take out the spool of the oil pump servo valve for manual cleaning, which is rather troublesome during use and reduces the practicability of the device.

[0006] (2) Technical Solution

[0007] The utility model is realized through the following technical solutions: a device for eliminating the jamming of the spool of an oil pump servo valve, including a heating box body, a heater is installed inside the heating box body, a spool body is placed inside the heating box body, a cleaning structure is arranged on one side of the heating box body, the cleaning structure includes a U-shaped frame, one side of the U-shaped frame is fixedly installed on one side of the heating box body, an arc-shaped net plate is fixedly installed inside the U-shaped frame, a collection drawer is slidably installed between the U-shaped frame and the arc-shaped net plate, a fixing plate is fixedly installed on the top of the U-shaped frame, two fixing seats are fixedly installed on the top of the fixing plate, a reciprocating lead screw is rotatably installed between the two fixing seats, the outer side of the reciprocating lead screw is connected with a T-shaped block through a nut pair, one side of the T-shaped block penetrates through the fixing plate and is fixedly installed with a cleaning frame, a shovel plate is fixedly installed on one side of the cleaning frame, the cleaning frame is designed with a circular opening, and a number of bristles are fixedly installed inside the cleaning frame. The arc-shaped design of the arc-shaped net plate can hold the spool body, and then the spool body is shoveled into the cleaning frame by the shovel plate, and then the cleaning frame is moved to clean the spool body.

[0008] Preferably, a driving motor is fixedly installed on one side of one of the fixing seats, and the output end of the driving motor penetrates through one of the fixing seats and is fixedly connected with the reciprocating lead screw.

[0009] Preferably, a sliding groove is formed in the fixing plate, the T-shaped block is arranged in the sliding groove and is in sliding contact with the fixing plate, and the arranged sliding groove can limit the T-shaped block.

[0010] Preferably, a moving structure is arranged on the top of the heating box body, the moving structure includes two gears, the two gears are rotatably installed on the top of the heating box body, the two gears are meshed and connected, racks are meshed and connected on the outer sides of the two gears, a vertical plate is fixedly installed on one side of the rack, a second connecting plate is fixedly installed on the bottom of one of the vertical plates, two connecting blocks are fixedly installed on one side of the second connecting plate, a second sealing gasket is fixedly installed on one side of the two connecting blocks, a push plate is fixedly installed on one side of the second sealing gasket, a first connecting plate is fixedly installed on one side of the other vertical plate, two push blocks are fixedly installed on one side of the first connecting plate, and a first sealing gasket is fixedly installed on the outer sides of the two push blocks. The arranged first sealing gasket and second sealing gasket can effectively seal the heating box body and prevent oil leakage when the servo valve is in use.

[0011] Preferably, two square notches are formed on one side of the heating box body, the two push blocks are matched with the two square notches, and the two first sealing gaskets are both arranged inside the heating box body. The two formed square notches can allow the push blocks to push the spool body to move through the square notches.

[0012] Preferably, a long strip slot is provided on one side of the heating box body, the push plate and the long strip slot match each other, the diameter of the valve core body is smaller than the height of the long strip slot, and the height of the long strip slot is larger than the diameter of the valve core body, so that the valve core body can be moved out of the long strip slot, and then the valve core body can be moved into the heating box body through the thrust of the push plate.

[0013] Preferably, a placement rack is fixedly installed on the top of the heating box body, a forward and reverse motor is fixedly installed on the top of the placement rack, and an output end of the forward and reverse motor passes through the placement rack and is fixedly connected to one of the gears.

[0014] The utility model provides a device for eliminating the stuck state of the valve core of the oil pump servo valve, and the beneficial effects thereof are as follows:

[0015] 1. The device for eliminating the stuck valve core of the oil pump servo valve drives the reciprocating screw rod 21 to rotate by the driving motor 20, so that the T-shaped block 22 moves horizontally back and forth, and the cleaning frame 23 moves horizontally back and forth accordingly. The valve core body 2 placed on the top of the arc-shaped mesh plate 16 is shoveled up by the shovel plate 24, and then the impurities on its surface are cleaned by the bristles on the inner side of the cleaning frame 23. The cleaned impurities will fall into the collection drawer 17 through the arc-shaped mesh plate 16 for storage, so that they are processed at one time without manual cleaning by people, making the device simple and convenient to use, and improving the practicality of the device.

[0016] 2. The device for eliminating the stuck valve core of the oil pump servo valve drives one of the gears 3 to rotate through the forward and reverse motor 5, so that the other gear 3 meshes and rotates, thereby driving the two racks 6 to mesh and move, and then drives the No. 1 connecting plate 8 and the No. 2 connecting plate 11 to move through the two vertical plates 7 respectively. The No. 1 connecting plate 8 will drive the two push blocks 9 to move, and the No. 2 connecting plate 11 will drive the No. 2 sealing gasket 13 and the push plate 14 to move through the two connecting blocks 12, so as to move the valve core body 2 between the No. 1 sealing gasket 10 and the push plate 14 out of the heating box 1 and place it on the top of the arc-shaped mesh plate 16, effectively preventing people from directly contacting the heated valve core body and causing burns, thereby improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial cross-sectional view of the utility model;

[0019] Figure 3 It is a schematic diagram of the mobile structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the cleaning structure of the utility model.

[0021]

Description of Main Component Symbols

[0022] 1. Heating box body; 101. Heater; 2. Spool body; 3. Gear; 4. Placing rack; 5. Forward and reverse motor; 6. Rack; 7. Vertical plate; 8. First connecting plate; 9. Pushing block; 10. First gasket; 11. Second connecting plate; 12. Connecting block; 13. Second gasket; 14. Pushing plate; 15. U-shaped frame; 16. Arc-shaped mesh plate; 17. Collection drawer; 18. Fixed plate; 19. Fixed seat; 20. Driving motor; 21. Reciprocating lead screw; 22. T-shaped block; 23. Cleaning frame; 24. Shoveling plate. Specific Embodiment

[0023] The embodiment of the present utility model provides a device for eliminating the jamming of the spool of an oil pump servo valve.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , which includes a heating box body 1. A heater 101 is installed inside the heating box body 1. A spool body 2 is placed inside the heating box body 1. A cleaning structure is arranged on one side of the heating box body 1. The cleaning structure includes a U-shaped frame 15. One side of the U-shaped frame 15 is fixedly installed on one side of the heating box body 1. An arc-shaped mesh plate 16 is fixedly installed inside the U-shaped frame 15. A collection drawer 17 is slidably installed between the U-shaped frame 15 and the arc-shaped mesh plate 16. A fixed plate 18 is fixedly installed on the top of the U-shaped frame 15. Two fixed seats 19 are fixedly installed on the top of the fixed plate 18. A reciprocating lead screw 21 is rotatably installed between the two fixed seats 19. The outer side of the reciprocating lead screw 21 is connected with a T-shaped block 22 through a nut pair. One side of the T-shaped block 22 penetrates through the fixed plate 18 and is fixedly installed with a cleaning frame 23. A shoveling plate 24 is fixedly installed on one side of the cleaning frame 23.

[0025] In this embodiment, a driving motor 20 is fixedly installed on one side of one of the fixed seats 19. The output end of the driving motor 20 penetrates through one of the fixed seats 19 and is fixedly connected with the reciprocating lead screw 21.

[0026] In this embodiment, the fixed plate 18 is provided with a chute, and the T-shaped block 22 is arranged in the chute and is in sliding contact with the fixed plate 18.

[0027] In this embodiment, a moving structure is provided at the top of the heating box body 1. The moving structure includes two gears 3. The two gears 3 are rotatably installed at the top of the heating box body 1. The two gears 3 are meshed and connected. A rack 6 is meshed and connected to the outer sides of the two gears 3. A vertical plate 7 is fixedly installed on one side of the rack 6. A second connecting plate 11 is fixedly installed at the bottom of one of the vertical plates 7. Two connecting blocks 12 are fixedly installed on one side of the second connecting plate 11. A second sealing gasket 13 is fixedly installed on one side of the two connecting blocks 12. A push plate 14 is fixedly installed on one side of the second sealing gasket 13. A first connecting plate 8 is fixedly installed on one side of the other vertical plate 7. Two push blocks 9 are fixedly installed on one side of the first connecting plate 8. A first sealing gasket 10 is fixedly installed on the outer sides of the two push blocks 9.

[0028] In this embodiment, two square notches are provided on one side of the heating box body 1. The two push blocks 9 are matched with the two square notches. The two first sealing gaskets 10 are both arranged inside the heating box body 1.

[0029] In this embodiment, a long strip-shaped notch is provided on one side of the heating box body 1. The push plate 14 is matched with the long strip-shaped notch. The diameter of the valve core body 2 is smaller than the height of the long strip-shaped notch.

[0030] In this embodiment, a placement rack 4 is fixedly installed at the top of the heating box body 1. A forward and reverse motor 5 is fixedly installed at the top of the placement rack 4. The output end of the forward and reverse motor 5 penetrates through the placement rack 4 and is fixedly connected to one of the gears 3.

[0031] It should be noted that the present utility model is a device for eliminating the jamming of the valve core of the oil pump servo valve. After each use of the oil pump servo valve, the valve core body 2 is taken out and placed inside the heating box body 1 for heating to evaporate the liquid remaining on the surface of the valve core body 2. Then, the forward and reverse motor 5 is started. The model of the forward and reverse motor 5 is not specifically described and is subject to the adapted equipment. The forward and reverse motor 5 will drive one of the gears 3 to rotate, causing the other gear 3 to rotate meshingly, driving the two racks 6 to move meshingly, and then driving the first connecting plate 8 and the second connecting plate 11 to move through the two vertical plates 7 respectively. The first connecting plate 8 will drive the two push blocks 9 to move, and the second connecting plate 11 will drive the second sealing gasket 13 and the push plate 14 to move through the two connecting blocks 12, moving the valve core body 2 between the first sealing gasket 10 and the push plate 14 from inside the heating box body 1 to the top of the arc-shaped mesh plate 16 for placement, effectively preventing people from being scalded by directly contacting the heated valve core body 2 and improving the use effect of the device;

[0032] When the valve core body 2 needs to be cleaned, the drive motor 20 is started. The model of the drive motor 20 is not described in detail and shall be subject to the adapted equipment. The drive motor 20 will drive the reciprocating screw 21 to rotate, causing the T-shaped block 22 to move horizontally back and forth, and the cleaning frame 23 will move horizontally back and forth accordingly. The valve core body 2 placed on the top of the arc-shaped mesh plate 16 will be shoveled up by the shovel plate 24, and then the impurities on its surface will be cleaned by the bristles on the inner side of the cleaning frame 23. The cleaned impurities will fall into the collection drawer 17 through the arc-shaped mesh plate 16 for storage, so that they can be processed at one time, effectively preventing the device from being stuck due to excessive impurities due to long-term lack of cleaning, thereby improving the use effect of the device.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A device for eliminating the stuck state of a servo valve core of an oil pump, comprising a heating box (1), characterized in that: A heater (101) is installed inside the heating box (1), a valve core body (2) is placed inside the heating box (1), a cleaning structure is arranged on one side of the heating box (1), and the cleaning structure comprises a U-shaped frame (15), one side of the U-shaped frame (15) is fixedly installed on one side of the heating box (1), an arc-shaped mesh plate (16) is fixedly installed on the inner side of the U-shaped frame (15), and a collection drawer (17) is slidably installed between the U-shaped frame (15) and the arc-shaped mesh plate (16). ), a fixing plate (18) is fixedly installed on the top of the U-shaped frame (15), two fixing seats (19) are fixedly installed on the top of the fixing plate (18), a reciprocating screw rod (21) is rotatably installed between the two fixing seats (19), a T-shaped block (22) is connected to the outer side of the reciprocating screw rod (21) through a nut pair, a cleaning frame (23) is fixedly installed on one side of the T-shaped block (22) passing through the fixing plate (18), and a shovel plate (24) is fixedly installed on one side of the cleaning frame (23).

2. The device for eliminating the stuck valve core of the oil pump servo valve according to claim 1, characterized in that: A driving motor (20) is fixedly mounted on one side of one of the fixing seats (19), and an output end of the driving motor (20) passes through one of the fixing seats (19) and is fixedly connected to the reciprocating screw rod (21).

3. The device for eliminating the stuck valve core of the oil pump servo valve according to claim 1, characterized in that: The fixed plate (18) is provided with a sliding groove, and the T-shaped block (22) is arranged in the sliding groove and is in sliding contact with the fixed plate (18).

4. The device for eliminating the stuck valve core of the oil pump servo valve according to claim 1, characterized in that: A movable structure is provided on the top of the heating box body (1), and the movable structure comprises two gears (3), the two gears (3) are rotatably mounted on the top of the heating box body (1), the two gears (3) are meshingly connected, the outer sides of the two gears (3) are meshingly connected with racks (6), a vertical plate (7) is fixedly mounted on one side of the rack (6), a second connecting plate (11) is fixedly mounted on the bottom of one of the vertical plates (7), two connecting blocks (12) are fixedly mounted on one side of the second connecting plate (11), a second sealing gasket (13) is fixedly mounted on one side of the two connecting blocks (12), a push plate (14) is fixedly mounted on one side of the second sealing gasket (13), a first connecting plate (8) is fixedly mounted on one side of the other vertical plate (7), two push blocks (9) are fixedly mounted on one side of the first connecting plate (8), and a first sealing gasket (10) is fixedly mounted on the outer sides of the two push blocks (9).

5. The device for eliminating the stuck valve core of the oil pump servo valve according to claim 4 is characterized in that: Two square notches are provided on one side of the heating box body (1), the two push blocks (9) match the two square notches, and the two No. 1 sealing pads (10) are both arranged on the inner side of the heating box body (1).

6. The device for eliminating the stuck valve core of the oil pump servo valve according to claim 4, characterized in that: A long strip notch is provided on one side of the heating box body (1), the push plate (14) matches the long strip notch, and the diameter of the valve core body (2) is smaller than the height of the long strip notch.

7. The device for eliminating the stuck valve core of the oil pump servo valve according to claim 4, characterized in that: A placement rack (4) is fixedly mounted on the top of the heating box (1), a forward and reverse motor (5) is fixedly mounted on the top of the placement rack (4), and an output end of the forward and reverse motor (5) passes through the placement rack (4) and is fixedly connected to one of the gears (3).

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