Hydraulic valve rod surface rust removal device

Abstract

The utility model relates to the technical field of hydraulic valve rod machining, and discloses a hydraulic valve rod surface rust removal device which comprises a machining table, an electric push rod is arranged at the top of the machining table, a U-shaped frame is fixedly connected to the telescopic end of the electric push rod, an annular cylinder is rotationally connected to the U-shaped frame, a grinding motor is fixedly installed on the U-shaped frame, and a grinding wheel is fixedly installed on the grinding motor. The output end of the grinding motor is fixedly connected with a rotating shaft, and a square groove is formed in the other end of the rotating shaft. Through the arrangement of the machining table, the annular cylinder, the square groove, the gear, the metal rod and other structures, after one set of grinding balls are abraded, the other set of grinding balls can be directly adjusted to the use position and fixed for use, the abraded grinding balls can be replaced in the grinding and rust removing process of the replaced grinding balls, and the grinding efficiency is improved. The hydraulic valve rod polishing device is simple in structure, convenient and fast, solves the problem that hydraulic valve rod polishing work cannot be conducted in the polishing mechanism replacement process, and improves the hydraulic valve rod polishing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic valve stem processing technology, and in particular to a rust removal device for the surface of hydraulic valve stems. Background Technology

[0002] A hydraulic valve is an automated component operated by pressurized oil. It is controlled by the pressurized oil of a distribution valve and is usually used in combination with a solenoid distribution valve. It can be used for remote control of the on / off of oil, gas, and water pipeline systems in hydropower stations. It is commonly used in clamping, control, and lubrication circuits. There are direct-acting and pilot-operated types, with pilot-operated types being more common. According to the control method, it can be divided into manual, electric control, and hydraulic control. The hydraulic valve stem is a component of the hydraulic valve.

[0003] Currently, when using rust removal equipment to grind hydraulic valve stems, a grinding mechanism such as a grinding disc or grinding rod is often required to generate friction between the grinding disc and the hydraulic valve stem for rust removal. However, after prolonged friction, the grinding mechanism often wears down and needs to be replaced. In the process of replacing the grinding mechanism on existing rust removal equipment, it is often necessary to remove the grinding disc and replace it with a new one before grinding can be carried out again. This process of replacing the grinding mechanism makes it impossible to grind the hydraulic valve stem, thus reducing the grinding efficiency of the hydraulic valve stem.

[0004] Therefore, it is necessary to provide a rust removal device for the surface of hydraulic valve stems to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rust removal device for the surface of hydraulic valve stems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a rust removal device for hydraulic valve stem surfaces, comprising a processing table, an electric push rod on the top of the processing table, a U-shaped frame fixedly connected to the telescopic end of the electric push rod, an annular cylinder rotatably connected to the U-shaped frame, a grinding motor fixedly mounted on the U-shaped frame, a rotating shaft fixedly connected to the output end of the grinding motor, a square groove opened at the other end of the rotating shaft, a permanent magnet fixedly connected inside the square groove, a plurality of grinding components arranged on the annular cylinder, each grinding component comprising a plurality of annular blocks, all of which are rotatably connected to the outer surface of the annular cylinder, a connecting component arranged on one of the annular blocks, a gear fixedly sleeved on the outer surface of the annular block, an elastic telescopic rod detachably threaded onto the annular block, a grinding ball fixedly connected to the other end of the elastic telescopic rod, a clamping component and a moving component arranged on the processing table, the plurality of grinding components arranged in a circumferential array, and the plurality of annular blocks arranged in a linear array.

[0007] As a further description of the above technical solution:

[0008] Several gears mesh with each other, the grinding motor is located inside the annular cylinder, and the grinding motor is fixedly connected to the U-shaped frame through two brackets.

[0009] As a further description of the above technical solution:

[0010] The connecting assembly includes a connecting groove located at the end of the annular block away from the grinding ball. A spring is fixedly connected inside the connecting groove, and a metal rod is slidably connected inside the connecting groove. The other end of the metal rod extends movably into the interior of a square groove. Two clearance grooves are formed through the interior of each connecting groove. The metal rod is slidably connected to the two clearance grooves via two pull rods. The connecting groove is square, and the metal rod is magnetically connected to a permanent magnet. The metal rod is square and fits the square groove.

[0011] As a further description of the above technical solution:

[0012] The top of the processing table is provided with a first slide groove and a second slide groove. The electric push rod is fixedly installed inside the first slide groove. The U-shaped frame is slidably connected to the first slide groove. The second slide groove passes through the processing table.

[0013] As a further description of the above technical solution:

[0014] The clamping assembly includes a connecting frame and a support plate. The connecting frame and the support plate are slidably connected inside the slide groove. A clamping plate is rotatably connected to one side of the connecting frame and the support plate. A stepper motor is fixedly installed on the connecting frame. The output end of the stepper motor is fixedly connected to one end of one of the clamping plates. A metal plate is fixedly embedded at the bottom of the connecting frame. Both clamping plates are made of rubber.

[0015] As a further description of the above technical solution:

[0016] The moving component includes a threaded rod and a drive motor. The threaded rod is rotatably connected inside the slide groove, and the drive motor is fixedly installed on one side of the processing table. The output end of the drive motor is fixedly connected to one end of the threaded rod.

[0017] As a further description of the above technical solution:

[0018] The slide groove 2 has a slider inside, the threaded rod is threadedly connected to the support plate and the slider respectively, and an electromagnet is fixedly connected to the top of the slider. When energized, the electromagnet is magnetically connected to the metal plate.

[0019] As a further description of the above technical solution:

[0020] The outer surface of the annular cylinder is provided with several fixing grooves, and two fixing rods are inserted into the U-shaped frame. The bottom ends of the fixing rods extend movably into one of the fixing grooves. The fixing rods are adapted to the fixing grooves, and the several fixing grooves are arranged in a circumferential array. The arrangement of the fixing rods and fixing grooves can improve the stability of the annular cylinder during use and prevent it from rotating.

[0021] This utility model has the following beneficial effects:

[0022] 1. Compared with existing technologies, this hydraulic valve stem surface rust removal device, through the arrangement of a processing table, annular cylinder, square groove, gear and metal rod, can directly adjust another set of grinding balls to the working position and fix them in place after one set of grinding balls wears out. This allows for the replacement of worn grinding balls during the grinding and rust removal process, which is convenient and quick. It solves the problem that the hydraulic valve stem cannot be ground during the grinding mechanism replacement process, thereby improving the grinding efficiency of the hydraulic valve stem.

[0023] 2. Compared with existing technologies, this hydraulic valve stem surface rust removal device, through the coordinated use of a grinding motor, elastic telescopic rod, grinding ball, slide groove, connecting frame, clamping plate and electromagnet, can clamp and fix hydraulic valve stems of different sizes and thicknesses, and perform corresponding grinding work on hydraulic valve stems of different thicknesses under the adaptive extension and retraction of the elastic telescopic rod, thereby improving the applicability of the device. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a rust removal device for the surface of a hydraulic valve stem proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the threaded rod and slider of a hydraulic valve stem surface rust removal device proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the gears and tie rods of a hydraulic valve stem surface rust removal device proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the spring and connecting groove of a hydraulic valve stem surface rust removal device proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the square groove and clearance groove of a hydraulic valve stem surface rust removal device proposed in this utility model.

[0029] Legend:

[0030] 1. Machining table; 2. Electric push rod; 3. U-shaped frame; 4. Annular cylinder; 5. Grinding motor; 6. Rotating shaft; 7. Square groove; 8. Permanent magnet; 9. Annular block; 10. Gear; 11. Elastic telescopic rod; 12. Grinding ball; 13. Connecting groove; 14. Spring; 15. Metal rod; 16. Clearance groove; 17. Pull rod; 18. Slide 1; 19. Slide 2; 20. Connecting frame; 21. Support plate; 22. Clamping plate; 23. Stepper motor; 24. Metal plate; 25. Threaded rod; 26. Drive motor; 27. Slider; 28. Electromagnet; 29. ​​Fixing groove; 30. Fixing rod. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1-5 This utility model provides a rust removal device for the surface of a hydraulic valve stem: It includes a processing table 1, an electric push rod 2 mounted on the top of the processing table 1, a U-shaped frame 3 fixedly connected to the telescopic end of the electric push rod 2, an annular cylinder 4 rotatably connected to the U-shaped frame 3, several fixing grooves 29 formed on the outer surface of the annular cylinder 4, two fixing rods 30 inserted into the U-shaped frame 3, the bottom ends of the fixing rods 30 extending movably into one of the fixing grooves 29, a grinding motor 5 fixedly mounted on the U-shaped frame 3, the grinding motor 5 located inside the annular cylinder 4, a rotating shaft 6 fixedly connected to the output end of the grinding motor 5, a square groove 7 formed at the other end of the rotating shaft 6, a permanent magnet 8 fixedly connected inside the square groove 7, and several grinding components mounted on the annular cylinder 4, each grinding component including several annular blocks 9 rotatably connected to the outer surface of the annular cylinder 4. On one of the annular blocks 9, a connecting component is provided. A gear 10 is fixedly sleeved on the outer surface of the annular block 9, and several gears 10 mesh with each other. An elastic telescopic rod 11 is detachably connected to the annular block 9 by threads. The other end of the elastic telescopic rod 11 is fixedly connected to a grinding ball 12. A clamping component and a moving component are provided on the processing table 1. Through the arrangement of the processing table 1, the annular cylinder 4, the square groove 7, the gears 10 and the metal rod 15, etc., after one set of grinding balls 12 wears out, another set of grinding balls 12 can be directly adjusted to the use position and fixed for use. This allows the replacement of worn grinding balls 12 to be carried out during the grinding and rust removal process, which is convenient and quick. It solves the problem that the hydraulic valve stem cannot be ground during the grinding mechanism replacement process, thereby improving the grinding efficiency of the hydraulic valve stem.

[0033] The connecting assembly includes a connecting groove 13, which is located at the end of the annular block 9 away from the grinding ball 12. A spring 14 is fixedly connected inside the connecting groove 13, and a metal rod 15 is slidably connected inside the connecting groove 13. The other end of the metal rod 15 extends movably into the square groove 7. Two clearance grooves 16 are formed through the interior of the connecting groove 13. The metal rod 15 is slidably connected to the two clearance grooves 16 via two pull rods 17. By setting up the connecting assembly, the metal rod 15 can be inserted into the square groove 7, thereby driving the corresponding annular block 9 to rotate after the grinding motor 5 is started.

[0034] The top of the processing table 1 is provided with a slide groove 18 and a slide groove 2 19. The electric push rod 2 is fixedly installed inside the slide groove 18. The U-shaped frame 3 is slidably connected to the slide groove 18. The slide groove 29 is slidably connected to a slider 27. The top of the slider 27 is fixedly connected to an electromagnet 28. By passing the electromagnet 28, it generates a magnetic force and can magnetically attract the metal plate 24, thereby driving the connecting frame 20 to move synchronously.

[0035] The clamping assembly includes a connecting frame 20 and a support plate 21. Both the connecting frame 20 and the support plate 21 are slidably connected inside the slide groove 19. A clamping plate 22 is rotatably connected to one side of both the connecting frame 20 and the support plate 21. A stepper motor 23 is fixedly installed on the connecting frame 20. The output end of the stepper motor 23 is fixedly connected to one end of one of the clamping plates 22. A metal plate 24 is fixedly embedded at the bottom of the connecting frame 20. Through the setting of the clamping assembly, hydraulic valve rods of different sizes and thicknesses can be clamped and fixed, thereby improving the practicality of the device.

[0036] The moving assembly includes a threaded rod 25 and a drive motor 26. The threaded rod 25 is rotatably connected inside the slide groove 19. The threaded rod 25 is threadedly connected to the support plate 21 and the slider 27 respectively. The drive motor 26 is fixedly installed on one side of the processing table 1. The output end of the drive motor 26 is fixedly connected to one end of the threaded rod 25. Through the setting of the moving assembly, the support plate 21 and one of the clamping plates 22 can be driven to move. With the cooperation of the other clamping plate 22, the hydraulic valve stem to be derusted can be clamped and fixed.

[0037] Working principle: When in use, start the drive motor 26 to drive the threaded rod 25 to rotate. With the cooperation of the second slide groove 19, the support plate 21 and the slider 27 move synchronously towards the drive motor 26. At the same time, hydraulic valve rods of different sizes to be derusted are placed between the two clamping plates 22. During the movement of the support plate 21 and one of the clamping plates 22, the hydraulic valve rods are clamped and fixed. Then, the electromagnet 28 is energized so that it is magnetically attracted to the metal plate 24. Then, start the drive motor 26 again. The synchronously moving support plate 21 and slider 27 drive the connecting frame 20, the stepper motor 23 and the clamped hydraulic valve rod to move synchronously to the front of the U-shaped frame 3. Start the electric push rod 2. With the cooperation of the first slide groove 18, it drives the U-shaped frame 3, the annular cylinder 4 and the grinding ball 12 to move synchronously. The position of the grinding ball 12 can be adjusted accordingly.

[0038] After adjusting the position of the grinding ball 12, start the stepper motor 23 and the grinding motor 5. After the stepper motor 23 starts, it drives one of the clamping plates 22 to rotate. With the cooperation of the other clamping plate 22, it drives the hydraulic valve rod that is clamped and fixed to rotate synchronously. After the grinding motor 5 starts, it drives the rotating shaft 6 and the permanent magnet 8 to rotate. With the cooperation of the square groove 7 and the metal rod 15, it drives the corresponding metal rod 15 to rotate synchronously. The metal rod 15 drives the corresponding annular block 9, gear 10, elastic telescopic rod 11 and grinding ball 12 to rotate. Under the transmission action of the gear 10, the corresponding annular block 9 and grinding ball 12 rotate synchronously to perform the rust removal work of the hydraulic valve rod.

[0039] When using the grinding balls 12 to remove rust from the hydraulic valve stem, if one set of grinding balls 12 becomes worn after prolonged use and needs to be replaced, manually pull up the two fixed rods 30 to move them upwards and separate them from the U-shaped frame 3. This releases the fixed limit on the annular cylinder 4. Then, manually pull the corresponding pull rod 17 to slide it inside the clearance groove 16, causing the corresponding metal rod 15 to move. This causes the metal rod 15 to press against the spring 14, separate from the corresponding permanent magnet 8, and move out of the corresponding square groove 7. Then, rotate the annular cylinder 4 to rotate the other set of grinding balls 12 to the front of the U-shaped frame 3. Pull the corresponding metal rod 15 to retract it. After rotating the annular cylinder 4, the adjusted metal rod 15 can be inserted into the square groove 7. The grinding ball 12 can then be used to remove rust from the hydraulic valve stem. At the same time, the worn grinding ball 12 can be replaced.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic valve stem surface rust removal device comprising a processing table (1), characterized in that: The top of the processing table (1) is provided with an electric push rod (2), the telescopic end of the electric push rod (2) is fixedly connected with a U-shaped frame (3), the U-shaped frame (3) is rotatably connected with an annular cylinder (4), the U-shaped frame (3) is fixedly installed with a polishing motor (5), the output end of the polishing motor (5) is fixedly connected with a rotating shaft (6), the other end of the rotating shaft (6) is provided with a square groove (7), the inside of the square groove (7) is fixedly connected with a permanent magnet (8), the annular cylinder (4) is provided with a plurality of polishing assemblies, the polishing assembly comprises a plurality of annular blocks (9), a plurality of annular blocks (9) are rotatably connected to the outer surface of the annular cylinder (4), one of the annular blocks (9) is provided with a connecting assembly, the outer surface of the annular block (9) is fixedly provided with a gear (10), the annular block (9) is threadedly detachably connected with an elastic telescopic rod (11), the other end of the elastic telescopic rod (11) is fixedly connected with a polishing ball (12), the processing table (1) is provided with a clamping assembly and a moving assembly.

2. A hydraulic valve stem surface rust removal device as claimed in claim 1, wherein: A plurality of the gears (10) are meshed with each other, and the polishing motor (5) is located in the inside of the annular cylinder (4).

3. The hydraulic valve stem surface rust removal device of claim 1, wherein: The connecting assembly comprises a connecting groove (13), the connecting groove (13) is formed in one end of the annular block (9) away from the polishing ball (12), the inside of the connecting groove (13) is fixedly connected with a spring (14), the inside of the connecting groove (13) is slidably connected with a metal rod (15), the other end of the metal rod (15) is movably extended into the square groove (7), two avoiding grooves (16) are formed in the inside of the connecting groove (13), and the metal rod (15) is slidably connected with the two avoiding grooves (16) through two pull rods (17).

4. The hydraulic valve stem surface rust removal device of claim 1, wherein: The top of the processing table (1) is provided with a sliding groove one (18) and a sliding groove two (19), the electric push rod (2) is fixedly installed in the inside of the sliding groove one (18), and the U-shaped frame (3) is slidably connected with the sliding groove one (18).

5. A hydraulic valve stem surface rust removal device as defined in claim 4, wherein: The clamping assembly comprises a connecting frame (20) and a supporting plate (21), the connecting frame (20) and the supporting plate (21) are slidably connected in the inside of the sliding groove two (19), one side of the connecting frame (20) and the supporting plate (21) is rotatably connected with a clamping plate (22), the connecting frame (20) is fixedly installed with a stepping motor (23), one end of the clamping plate (22) is fixedly connected with the output end of the stepping motor (23), and the bottom of the connecting frame (20) is fixedly embedded with a metal plate (24).

6. A hydraulic valve stem surface rust removal device as defined in claim 5, wherein: The moving assembly comprises a threaded rod (25) and a driving motor (26), the threaded rod (25) is rotatably connected in the inside of the sliding groove two (19), the driving motor (26) is fixedly installed on one side of the processing table (1), and the output end of the driving motor (26) is fixedly connected with one end of the threaded rod (25).

7. A hydraulic valve stem surface rust removal device as defined in claim 6, wherein: The chute two (19) is internally slidably connected with a sliding block (27), the threaded rods (25) are respectively in threaded connection with the supporting plates (21) and the sliding block (27), and the top of the sliding block (27) is fixedly connected with an electromagnet (28).

8. The hydraulic valve stem surface rust removal device of claim 1, wherein: The outer surface of the annular barrel (4) is provided with a plurality of fixing grooves (29), two fixing rods (30) are inserted on the U-shaped support (3), and the bottom ends of the fixing rods (30) movably extend into the interiors of the fixing grooves (29).

Images