Pressurizing test device for repairing hydraulic cylinder

Abstract

A pressing test device for hydraulic cylinder repair belongs to the technical field of hydraulic cylinder repair and comprises a workbench, a concave table top is arranged on the upper surface of the workbench, a U-shaped bearing seat is placed in the concave table top, a plurality of V-shaped track wheels are rotatably mounted on the front surface and the rear surface of the U-shaped bearing seat, and the V-shaped track wheels are mounted at the frame of the concave table top in a rolling manner. Four supporting plates are fixedly installed in the U-shaped bearing seat and are in an M shape, a locking device is fixedly installed on the front surface of the U-shaped bearing seat and used for fixing the U-shaped bearing seat and the workbench, inner clamping grooves are symmetrically formed in the inner sides of the upper surfaces of the supporting plates, and rolling lifting mechanisms are installed between the left inner clamping groove and the right inner clamping groove in a clamped mode. The U-shaped bearing seat can be used for driving the hydraulic cylinder to move left and right on the concave table top, and when the hydraulic cylinder is moved to a pressing test position, the operation is more convenient and labor-saving, and the repair efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic cylinder repair, and in particular relates to a pressure testing device for repairing a hydraulic cylinder. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines.

[0003] During long-term use, small cracks will appear in the hydraulic cylinder, causing oil leakage in the hydraulic cylinder, so the sealing structure of the hydraulic cylinder needs to be replaced regularly for repair. After the repair, the hydraulic cylinder needs to be pressure tested as a whole to check its sealing effect. Since the hydraulic cylinder is heavy, the operation is not only laborious but also affects the repair efficiency during the process of moving it back and forth on the test bench. For this reason, a pressure test device for hydraulic cylinder repair is specially provided to solve the above technical problems. Utility Model Content

[0004] In view of the problem in the prior art that when the hydraulic cylinder is moved to the pressure test position, the operation is laborious and the repair efficiency is affected, the utility model provides a pressure test device for hydraulic cylinder repair, which sets a U-shaped bearing seat with four support plates in a concave table through the sliding of V-shaped track wheels, and the hydraulic cylinder that needs pressure testing can be placed between the four support plates of the U-shaped bearing seat for lifting and placement, and the U-shaped bearing seat is used to drive the hydraulic cylinder to move, so that the movement of the hydraulic cylinder on the repair table is more convenient and labor-saving, and the repair efficiency is improved, which effectively solves the problem in the prior art that when the hydraulic cylinder is moved to the pressure test position, the operation is laborious and the repair efficiency is affected. The specific technical scheme is as follows:

[0005] A pressure testing device for repairing a hydraulic cylinder comprises a workbench, wherein the upper surface of the workbench is provided with a concave table surface, a U-shaped bearing seat is placed in the concave table surface, a plurality of V-shaped track wheels are rotatably mounted on the front and rear surfaces of the U-shaped bearing seat, the V-shaped track wheels are rollingly mounted on the frame of the concave table surface, four support plates are fixedly mounted in the U-shaped bearing seat, the support plates are M-shaped, a locking device is fixedly mounted on the front surface of the U-shaped bearing seat, the locking device is used to fix the U-shaped bearing seat to the workbench, inner slots are symmetrically arranged on the inner sides of the upper surfaces of the support plates, a rolling lifting mechanism is clamped and mounted between two adjacent inner slots on the left and right sides.

[0006] In the above technical solution, the locking device includes an L-shaped fixing plate, which is fixedly installed on the front surface of the U-shaped bearing seat, and a through opening is opened through the front surface of the L-shaped fixing plate, a nut is welded and installed at the front end of the through opening, a bolt is threadedly installed in the nut, the rear end of the bolt passes through the through opening and fits the front surface of the workbench, and an operating handle is fixedly installed at the rear end of the bolt.

[0007] In the above technical solution, the rolling lifting mechanism includes a support rod, the middle part of the support rod is cylindrical, the middle part of the support rod is sleeved with a lifting bearing, the two ends of the support rod are square, and the two ends of the support rod are respectively clamped in the corresponding inner slots.

[0008] In the above technical solution, an outer card slot is symmetrically opened on the outer side of the upper surface of the support plate, and the size of the outer card slot is the same as that of the inner card slot.

[0009] In the above technical solution, a plurality of partition plates are snap-fitted and installed in the concave table top, and the partition plates divide the concave table top into a plurality of placement areas. Two installation grooves are symmetrically provided on the lower surface of the partition plates, and the installation grooves are snap-fitted to the frame of the concave table top, and vertical plates are fixedly installed in the installation grooves, and the outer surface of the vertical plates is in contact with the inner wall of the concave table top.

[0010] In the above technical solution, a storage plate is fixedly installed in the workbench.

[0011] Compared with the prior art, the utility model of a hydraulic cylinder repair pressure testing device has the following beneficial effects:

[0012] The utility model sets a U-shaped bearing seat with four support plates in the concave table surface through the sliding of V-shaped track wheels, so that the hydraulic cylinder that needs pressure testing can be placed between the four support plates for lifting and placement, thereby utilizing the U-shaped bearing seat to drive the hydraulic cylinder to move left and right on the concave table surface. When the hydraulic cylinder is moved to the pressure testing position, not only can the operation be more convenient and labor-saving, but also the repair efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the U-shaped bearing seat structure of the utility model.

[0015] Figure 3 It is a schematic diagram of the explosion structure of the locking device of the utility model.

[0016] Figure 4 It is a schematic diagram of the rolling lifting mechanism structure of the utility model.

[0017] Figure 5 This is a schematic diagram of the partition plate structure of the utility model.

[0018] Figure 1-5 Among them: 1. workbench; 11. concave table top; 12. storage plate; 2. U-shaped bearing seat; 21. V-shaped track wheel; 22. support plate; 221. inner slot; 222. outer slot; 3. locking device; 31. L-shaped fixing plate; 311. through port; 32. nut; 33. bolt; 34. operating handle; 4. rolling lifting mechanism; 41. support rod; 42. lifting bearing; 5. partition plate; 51. mounting slot; 52. vertical plate; 6. hydraulic cylinder. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0021] A pressure testing device for repairing a hydraulic cylinder comprises a workbench 1, wherein a concave table 11 is provided on the upper surface of the workbench 1, a U-shaped bearing seat 2 is placed in the concave table 11, a plurality of V-shaped track wheels 21 are rotatably installed on the front and rear surfaces of the U-shaped bearing seat 2, the V-shaped track wheels 21 are rollingly installed at the frame of the concave table 11, four support plates 22 are fixedly installed in the U-shaped bearing seat 2, the support plates 22 are M-shaped, a locking device 3 is fixedly installed on the front surface of the U-shaped bearing seat 2, the locking device 3 is used to fix the U-shaped bearing seat 2 and the workbench 1, the inner sides of the upper surfaces of the support plates 22 are symmetrically provided with inner card grooves 221, and a rolling lifting mechanism 4 is clamped and installed between two adjacent inner card grooves 221 on the left and right sides;

[0022] When using, Figure 1 As shown, the locking device 3 is first released, and then, with the help of the V-shaped track wheel 21, the U-shaped bearing seat 2 is easily moved to the hydraulic cylinder repair area at the right end of the workbench 1, and then the hydraulic cylinder 6 is manually lifted and placed between the four rolling support mechanisms 4. After that, the U-shaped bearing seat 2 is pushed to move the hydraulic cylinder 6 to the left, and after moving to the leftmost part of the workbench 1, it arrives at the pressure testing area, and the pressure pipe and the pressure extraction pipe in the pressure testing area are respectively connected to the liquid inlet and liquid discharge ends of the hydraulic cylinder 6, and then a pressure test is performed. This device can make the hydraulic cylinder 6 more convenient and labor-saving during the movement, thereby improving the efficiency of the repair and testing work.

[0023] like Figure 3 As shown, the locking device 3 includes an L-shaped fixing plate 31, which is fixedly installed on the front surface of the U-shaped bearing seat 2, and a through hole 311 is opened on the front surface of the L-shaped fixing plate 31, a nut 32 is welded and installed at the front end of the through hole 311, a bolt 33 is threadedly installed in the nut 32, the rear end of the bolt 33 passes through the through hole 311 and fits the front surface of the workbench 1, and an operating handle 34 is fixedly installed at the rear end of the bolt 33. To unlock the locking device 3, the operating handle 34 is rotated to drive the bolt 33 to rotate so that it is out of contact with the workbench 1. When locking the position of the U-shaped bearing seat 2, the operating handle 34 is rotated in the reverse direction to drive the rear end of the bolt 33 to press against the front surface of the workbench 1.

[0024] like Figure 4 As shown, the rolling lifting mechanism 4 includes a support rod 41, the middle part of the support rod 41 is cylindrical, the middle part of the support rod 41 is sleeved with a lifting bearing 42, the two ends of the support rod 41 are square, and the two ends of the support rod 41 are respectively clamped in the corresponding inner clamping groove 221, the two rolling lifting mechanisms 4 on the left and the two rolling lifting mechanisms 4 on the right are respectively used to lift the left and right ends of the hydraulic cylinder 6, and during the lifting process, by setting the lifting bearing 42, when the hydraulic cylinder 6 is connected to the pressure pipe and the suction pipe, the connection position of the hydraulic cylinder 6 can be easily rotated and adjusted, so that the connection operation with the pressure pipe and the suction pipe is more convenient and labor-saving.

[0025] In addition, in order to facilitate the adjustment of the position of the rolling lifting mechanism 4, it is convenient to lift the hydraulic cylinder 6 with a larger outer diameter, such as Figure 2 As shown, an outer slot 222 is symmetrically opened on the outer side of the upper surface of the support plate 22, and the size of the outer slot 222 is the same as that of the inner slot 221. After the support rod 41 is removed from the inner slot 221, it can be snapped into two corresponding outer slots 222 for installation and use, thereby increasing the distance between the front and rear lifting bearings 42, and then facilitating the lifting of the hydraulic cylinder 6 with a larger outer diameter.

[0026] In addition, in order to facilitate the orderly placement of various hydraulic cylinder parts used for repair on the concave table 11, such as Figure 1 As shown, a plurality of partition plates 5 are snap-fitted and installed in the concave table top 11, and the partition plates 5 divide the concave table top 11 into a plurality of placement areas. Two installation grooves 51 are symmetrically provided on the lower surface of the partition plates 5. The installation grooves 51 are snap-fitted to the frame of the concave table top 11, and vertical plates 52 are fixedly installed in the installation grooves 51. The outer surface of the vertical plates 52 is in contact with the inner wall of the concave table top 11, and the parts used for repair can be classified and placed in different placement areas to facilitate the orderly repair work of the hydraulic cylinder 6.

[0027] Finally, in order to facilitate the storage of the tools used in repairing the hydraulic cylinder 6, Figure 1As shown, a storage plate 12 is fixedly installed in the workbench 1, and the used tools can be placed on the storage plate 12 for storage.

Claims

1. A pressure testing device for repairing a hydraulic cylinder, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is provided with a concave tabletop (11), a U-shaped bearing seat (2) is placed in the concave tabletop (11), a plurality of V-shaped track wheels (21) are rotatably mounted on the front and rear surfaces of the U-shaped bearing seat (2), the V-shaped track wheels (21) are rollingly mounted on the frame of the concave tabletop (11), four support plates (22) are fixedly mounted in the U-shaped bearing seat (2), the support plates (22) are M-shaped, a locking device (3) is fixedly mounted on the front surface of the U-shaped bearing seat (2), and the locking device (3) is used to fix the U-shaped bearing seat (2) and the workbench (1); The inner side of the upper surface of the support plate (22) is symmetrically provided with inner slots (221), and a rolling lifting mechanism (4) is mounted between two adjacent inner slots (221) on the left and right.

2. A pressure testing device for repairing a hydraulic cylinder according to claim 1, characterized in that: The locking device (3) comprises an L-shaped fixing plate (31), the L-shaped fixing plate (31) is fixedly mounted on the front surface of the U-shaped bearing seat (2), and a through hole (311) is penetrated through the front surface of the L-shaped fixing plate (31), a nut (32) is welded and mounted on the front end of the through hole (311), a bolt (33) is threadedly mounted inside the nut (32), a rear end of the bolt (33) penetrates the through hole (311) and fits with the front surface of the workbench (1), and an operating handle (34) is fixedly mounted on the rear end of the bolt (33).

3. A pressure testing device for repairing a hydraulic cylinder according to claim 1 or 2, characterized in that: The rolling lifting mechanism (4) comprises a support rod (41), the middle part of the support rod (41) is cylindrical, the middle part of the support rod (41) is sleeved with a lifting bearing (42), the two ends of the support rod (41) are square, and the two ends of the support rod (41) are respectively clamped in corresponding inner clamping grooves (221).

4. A pressure testing device for repairing a hydraulic cylinder according to claim 3, characterized in that: An outer card slot (222) is symmetrically provided on the outer side of the upper surface of the support plate (22), and the size of the outer card slot (222) is the same as that of the inner card slot (221).

5. The pressure testing device for repairing a hydraulic cylinder according to claim 1, characterized in that: A plurality of partition plates (5) are mounted in the concave table top (11), the partition plates (5) dividing the concave table top (11) into a plurality of placement areas, two mounting grooves (51) are symmetrically provided on the lower surface of the partition plates (5), the mounting grooves (51) are mounted in the frame of the concave table top (11), and vertical plates (52) are fixedly mounted in the mounting grooves (51), and the outer surfaces of the vertical plates (52) are in contact with the inner side walls of the concave table top (11).

6. A pressure testing device for repairing a hydraulic cylinder according to claim 1, characterized in that: A storage plate (12) is fixedly installed inside the workbench (1).

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