Auxiliary device for bushing in middle cylinder of hydraulic oil cylinder

Abstract

The utility model belongs to the technical field of in-cylinder bushing, and particularly relates to an in-cylinder bushing auxiliary device in a hydraulic oil cylinder, which comprises a working table, two sides of the top of the working table are fixedly connected with supporting frames, the tops of the supporting frames are fixedly connected with a fixing plate, one side of the bottom of the fixing plate is fixedly connected with a limiting rod, and the outside of the limiting rod is slidably connected with a lifting column. Connecting pipes are slidably connected to the lower portion in the lifting column at equal intervals, and the outer ends of the connecting pipes extend out of the lifting column to be fixedly connected with suction cups. The utility model provides an in-cylinder bushing auxiliary device in a hydraulic oil cylinder, and solves the problems that in the prior art, in-cylinder bushing of the oil cylinder is generally manually operated, a sealing ring is extruded into the oil cylinder and then is embedded into a corresponding groove body, but the sealing ring needs to be manually plugged into the cylinder body in a manual bushing mode, so that the sealing ring cannot be inserted into the cylinder body, and the sealing ring cannot be inserted into the cylinder body. And as the space in the cylinder body is small, the hands are difficult to completely extend into the cylinder body, the inlaying is very inconvenient, and the working efficiency is not favorably improved.

Description

Technical Field

[0001] The utility model belongs to the field of cylinder sleeves, in particular to an cylinder sleeve auxiliary device in a hydraulic oil cylinder. Background Art

[0002] The cylinder sleeve in the hydraulic cylinder is a component installed between the piston and the cylinder barrel. It has the functions of reducing friction and loss and improving sealing. These cylinder sleeves play an important role in the hydraulic system.

[0003] In the prior art, when inserting the sleeve into the oil cylinder, it is generally done manually. The sealing ring is squeezed into the inside of the oil cylinder and then inserted into the corresponding groove. However, the manual insertion method requires manually inserting the sealing ring into the inside of the cylinder body, and since the space in the cylinder body is small, it is difficult for the hand to fully extend into the cylinder body, which makes the insertion very inconvenient and is not conducive to improving work efficiency. Therefore, an auxiliary sleeve insertion device is needed to replace manual work. Utility Model Content

[0004] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide an auxiliary device for inserting a sleeve in a hydraulic cylinder.

[0005] The technical solution of the utility model is as follows: a hydraulic oil cylinder inner sleeve auxiliary device comprises a workbench, both sides of the top of the workbench are fixedly connected with support frames, the top of the support frame is fixedly connected with a fixed plate, one side of the bottom of the fixed plate is fixedly connected with a limit rod, the outside of the limit rod is slidably connected with a lifting column, the lower part of the interior of the lifting column is equidistantly slidably connected with a connecting pipe, one end of the outside of the connecting pipe extends to the outside of the lifting column and is fixedly connected with a suction cup, clamping blocks are provided on both sides of the top of the workbench, and a transmission assembly is provided on the outside of the lifting column.

[0006] As a preferred embodiment, the transmission assembly includes a screw and a linkage unit, the screw is rotatably connected to the bottom of the fixed plate away from the side of the limit rod, the top side of the fixed plate is fixedly connected to a motor, the output end of the motor extends to the bottom of the fixed plate and is fixedly connected to the screw, the lifting column is threadedly connected to the outside of the screw, the bottom of the fixed plate and fixedly connected with a threaded rod between the limit rod and the screw, the upper part of the interior of the lifting column is fixedly connected to a limit block, the interior of the limit block is rotatably connected with a threaded sleeve, the threaded sleeve is threadedly connected to the outside of the threaded rod, and the connecting pipe can slide inside the lifting column through the linkage unit.

[0007] As a preferred embodiment, a reciprocating thread is provided at the lower part of the outside of the threaded sleeve, and the outside of the threaded sleeve is connected to a threaded block via a reciprocating thread. The outside of the threaded block is rotatably connected to connecting rods equidistantly corresponding to the number of connecting pipes, and the end of the outside of the connecting rod away from the threaded block is rotatably connected to the top of the connecting pipe.

[0008] As a preferred embodiment, a vacuum pump is fixedly connected to the bottom of the inner wall of the lifting column, and the outside of the vacuum pump is fixedly connected to limiting sleeves at equal intervals corresponding to the number of connecting pipes, and the connecting pipes are slidably connected to the inside of the corresponding limiting sleeves.

[0009] As a preferred embodiment, sliding rods are symmetrically and slidably connected on both sides of the top of the workbench, the two clamping blocks are respectively fixedly connected to the top of each group of sliding rods, the outer side of the two clamping blocks are fixedly connected with sliding columns, the sliding columns are slidably connected to the support frame, and a spring is arranged outside the sliding column and between the clamping block and the support frame.

[0010] As a preferred embodiment, a cylinder body is arranged on the top of the workbench, an inlay groove is opened inside the cylinder body, and the outside of the clamping block is an arc-shaped structure.

[0011] The beneficial effects of the utility model are as follows:

[0012] The device has a simple structure and is easy to operate. The sealing ring can be fixed by a suction cup, and the sealing ring can be deformed while being driven to move to the inside of the cylinder body. The sealing ring is then auxiliaryly inserted into the inside of the cylinder body, thereby avoiding the need to manually squeeze and deform the sealing ring and then insert it into the cylinder body for insertion. Since the internal space of the cylinder body is small, manual insertion is laborious and difficult to complete in a short time, thereby effectively improving the insertion efficiency and thus improving the production efficiency of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the limit rod structure of the utility model;

[0016] Figure 3 It is a cross-sectional view of the lifting column in the utility model;

[0017] Figure 4 It is a cross-sectional view of the threaded sleeve in the utility model;

[0018] Figure 5 It is a cross-sectional view of the cylinder body in the utility model;

[0019] Figure 6 For the utility model Figure 3 Enlarged view of point A in the middle.

[0020] In the figure: 1. workbench; 2. support frame; 3. fixing plate; 4. limit rod; 5. lifting column; 6. connecting pipe; 7. suction cup; 8. clamping block; 9. lead screw; 10. motor; 11. threaded rod; 12. limit block; 13. threaded sleeve; 14. threaded block; 15. connecting rod; 16. vacuum pump; 17. limit sleeve; 18. cylinder body; 19. inlay groove; 20. slide rod; 21. slide column; 22. spring. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figure 1-6 , a hydraulic cylinder inner sleeve auxiliary device comprises a workbench 1, both sides of the top of the workbench 1 are fixedly connected with a support frame 2, the top of the support frame 2 is fixedly connected with a fixing plate 3, one side of the bottom of the fixing plate 3 is fixedly connected with a limit rod 4, the outer side of the limit rod 4 is slidably connected with a lifting column 5, the lower part of the lifting column 5 is equidistantly slidably connected with a connecting pipe 6, one end of the outer side of the connecting pipe 6 extends to the outside of the lifting column 5 and is fixedly connected with a suction cup 7, clamping blocks 8 are provided on both sides of the top of the workbench 1, and a transmission component is provided on the outside of the lifting column 5.

[0023] Specifically, the transmission assembly includes a screw 9 and a linkage unit. The screw 9 is rotatably connected to the bottom of the fixed plate 3 and is away from the side of the limit rod 4. The top side of the fixed plate 3 is fixedly connected with a motor 10. The output end of the motor 10 extends to the bottom of the fixed plate 3 and is fixedly connected to the screw 9. The lifting column 5 is threadedly connected to the outside of the screw 9. The bottom of the fixed plate 3 and the threaded rod 11 is fixedly connected between the limit rod 4 and the screw 9. The upper part of the lifting column 5 is fixedly connected to the limit block 12. The inner part of the limit block 12 is rotatably connected with a threaded sleeve 13. The threaded sleeve 13 is threadedly connected to the outside of the threaded rod 11. The connecting pipe 6 can slide in the interior of the lifting column 5 through the linkage unit. A reciprocating thread is provided at the lower part of the outer part of the threaded sleeve 13. The outer part of the threaded sleeve 13 is connected to a threaded block 14 through a reciprocating thread. The outer part of the threaded block 14 is equidistantly rotatably connected with a connecting rod 15 corresponding to the number of connecting pipes 6. The outer end of the connecting rod 15 away from the threaded block 14 is rotatably connected to the top of the connecting pipe 6.

[0024] Through the above technical scheme, the cylinder body 18 is first clamped and fixed, and then the sealing rings to be embedded are sleeved on the outside of multiple suction cups 7, and then the suction cups 7 and the sealing rings are vacuumed, so that the sealing rings can be fixed through the suction cups 7, and the motor 10 is started. The output end of the motor 10 can drive the screw 9 to rotate, and the screw 9 can drive the lifting column 5 to move downward under the limit of the limit rod 4 through a threaded connection relationship. When the lifting column 5 descends, the internal threaded sleeve 13 can be driven to descend. The threaded sleeve 13 then rotates when descending through the threaded connection relationship with the threaded rod 11. When the threaded sleeve 13 rotates, the external threaded block 14 can be driven to rise under the limit of the connecting rod 15 and the connecting pipe 6 through the threaded connection relationship, so that the connecting pipe 6 is driven to slide toward the inside of the lifting column 5 through the connecting rod 15, so that the sealing ring is deformed and contracted inwardly through the suction cup 7, and then the suction cup 7 drives the contracted sealing ring to continue to move downward The screw block 14 is driven by the reciprocating screw thread to rise to the top and then fall again until it falls to the corresponding embedding groove 19 in the cylinder body 18, driving the connecting pipe 6 and the suction cup 7 to expand the sealing ring again, so that the sealing ring is embedded in the embedding groove 19 in the cylinder body 18, and then the vacuum pump 16 is turned off to make the suction cup 7 separate from the sealing ring, so as to achieve the purpose of inserting the cylinder body 18 into the cylinder. The device has a simple structure and is easy to operate. The sealing ring can be fixed by the suction cup 7, and the sealing ring can be driven to deform while driving the sealing ring to move to the inside of the cylinder body 18, and then the sealing ring is auxiliaryly inserted into the inside of the cylinder body 18, avoiding the need to manually squeeze and deform the sealing ring and then insert it into the cylinder body 18 for inserting it during manual insertion. Due to the small internal space of the cylinder body 18, manual insertion is more laborious and difficult to complete in a short time, thereby effectively improving the insertion efficiency, thereby improving the production efficiency of the hydraulic cylinder.

[0025] Specifically, a vacuum pump 16 is fixedly connected to the bottom of the inner wall of the lifting column 5 , and the outside of the vacuum pump 16 is fixedly connected to limit sleeves 17 at equal intervals corresponding to the number of connecting pipes 6 , and the connecting pipes 6 are slidably connected to the inside of the corresponding limit sleeves 17 .

[0026] Through the above technical solution, the vacuum pump 16 can be used to create a vacuum between the suction cup 7 and the sealing ring, so that the suction cup 7 can drive the sealing ring to shrink, thereby improving practicality.

[0027] Specifically, both sides of the top of the workbench 1 are symmetrically slidably connected with sliding rods 20, and the two clamping blocks 8 are respectively fixedly connected to the top of each group of sliding rods 20. The outer side of the two clamping blocks 8 is fixedly connected with a sliding column 21, and the sliding column 21 is slidably connected to the inside of the support frame 2. A spring 22 is arranged outside the sliding column 21 and between the clamping block 8 and the support frame 2. A cylinder body 18 is arranged on the top of the workbench 1, and an inlay groove 19 is opened inside the cylinder body 18. The outside of the clamping block 8 is an arc-shaped structure.

[0028] Through the above technical solution, the elastic force of the provided spring 22 can facilitate the arbitrarily controlled adjustment of the distance between the two clamping blocks 8, thereby clamping the cylinder body 18 and improving the clamping stability.

[0029] When in use, first pull the slide columns 21 on both sides to drive the corresponding clamping blocks 8 to move to both sides, and at the same time squeeze the spring 22 to deform the spring 22, then place the cylinder 18 on the top of the workbench 1 and between the two clamping blocks 8, then release the two slide columns 21, and under the rebound force of the spring 22, the two clamping blocks 8 can be driven to clamp and fix the cylinder 18, then the sealing rings to be embedded are sleeved on the outside of the multiple suction cups 7, and then the vacuum pump 16 is started. The vacuum pump 16 draws vacuum on the suction cup 7 through the connecting pipe 6, and the sealing ring can be fixed through the suction cup 7, and the motor 10 is started. The output end of the motor 10 can be brought The movable screw 9 rotates, and the screw 9 can drive the lifting column 5 to move downward under the limit of the limit rod 4 through the threaded connection relationship. When the lifting column 5 descends, the internal threaded sleeve 13 can be driven to descend. The threaded sleeve 13 is then rotated when descending through the threaded connection relationship with the threaded rod 11. When the threaded sleeve 13 rotates, the external threaded block 14 can be driven to rise under the limit of the connecting rod 15 and the connecting pipe 6 through the threaded connection relationship, so that the connecting pipe 6 is driven to slide toward the inside of the lifting column 5 through the connecting rod 15, so that the sealing ring is deformed and contracted inwardly through the suction cup 7, and then the suction cup 7 drives the contracted sealing ring to continue The screw block 14 moves downward, and the reciprocating screw thread drives the screw block 14 to rise to the top and then descend again, until it descends to the corresponding embedding groove 19 in the cylinder body 18, and drives the connecting pipe 6 and the suction cup 7 to expand the sealing ring again, so that the sealing ring is embedded in the embedding groove 19 in the cylinder body 18, and then the vacuum pump 16 is turned off to make the suction cup 7 separate from the sealing ring, so as to achieve the purpose of inserting the cylinder body 18 into the cylinder. The device has a simple structure and is easy to operate. The sealing ring can be fixed by the suction cup 7, and the sealing ring can be driven to deform and move to the inside of the cylinder body 18 at the same time, and then the sealing ring is auxiliary embedded in the inside of the cylinder body 18 , which avoids the need to manually squeeze and deform the sealing ring and then insert it into the cylinder body 18 for insertion during manual insertion. Due to the small internal space of the cylinder body 18, manual insertion is more laborious and difficult to complete in a short time. The insertion efficiency is effectively improved, thereby improving the production efficiency of the hydraulic cylinder. The vacuum pump 16 can be used to suction vacuum between the suction cup 7 and the sealing ring, so that it is convenient for the subsequent suction cup 7 to drive the sealing ring to shrink, thereby improving practicality. The elastic force of the spring 22 can facilitate the arbitrarily controlled adjustment of the distance between the two clamping blocks 8, thereby clamping the cylinder body 18 and improving the clamping stability.

[0030] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0032] The above shows and describes the basic principles, main features and 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 principles 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 claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A hydraulic cylinder sleeve auxiliary device, comprising a workbench (1), characterized in that: The top sides of the workbench (1) are fixedly connected to support frames (2), the top of the support frame (2) is fixedly connected to a fixing plate (3), the bottom side of the fixing plate (3) is fixedly connected to a limiting rod (4), the outside of the limiting rod (4) is slidably connected to a lifting column (5), the inside of the lifting column (5) is equidistantly slidably connected to a connecting pipe (6), one end of the outside of the connecting pipe (6) extends to the outside of the lifting column (5) and is fixedly connected to a suction cup (7), clamping blocks (8) are provided on both sides of the top of the workbench (1), and a transmission assembly is provided on the outside of the lifting column (5).

2. The hydraulic cylinder sleeve auxiliary device according to claim 1, characterized in that: The transmission assembly comprises a lead screw (9) and a linkage unit, wherein the lead screw (9) is rotatably connected to a side of the bottom of the fixing plate (3) away from the limiting rod (4), a motor (10) is fixedly connected to one side of the top of the fixing plate (3), an output end of the motor (10) extends to the bottom of the fixing plate (3) and is fixedly connected to the lead screw (9), the lifting column (5) is threadedly connected to the outside of the lead screw (9), a threaded rod (11) is fixedly connected to the bottom of the fixing plate (3) and located between the limiting rod (4) and the lead screw (9), a limiting block (12) is fixedly connected to the upper part of the interior of the lifting column (5), a threaded sleeve (13) is rotatably connected to the interior of the limiting block (12), the threaded sleeve (13) is threadedly connected to the outside of the threaded rod (11), and the connecting pipe (6) can slide inside the lifting column (5) through the linkage unit.

3. The hydraulic cylinder sleeve auxiliary device according to claim 2, characterized in that: A reciprocating thread is arranged at the lower part of the outside of the threaded sleeve (13), and the outside of the threaded sleeve (13) is connected to a threaded block (14) via the reciprocating thread. The outside of the threaded block (14) is rotatably connected to connecting rods (15) at a number corresponding to the number of connecting pipes (6). The end of the outside of the connecting rod (15) away from the threaded block (14) is rotatably connected to the top of the connecting pipe (6).

4. The hydraulic cylinder sleeve auxiliary device according to claim 3, characterized in that: A vacuum pump (16) is fixedly connected to the bottom of the inner wall of the lifting column (5); the outside of the vacuum pump (16) is fixedly connected to limit sleeves (17) at equal intervals corresponding to the number of connecting pipes (6); and the connecting pipes (6) are slidably connected to the inside of the corresponding limit sleeves (17).

5. The hydraulic cylinder sleeve auxiliary device according to claim 4, characterized in that: Both sides of the top of the workbench (1) are symmetrically slidably connected with sliding rods (20), the two clamping blocks (8) are respectively fixedly connected to the top of each group of sliding rods (20), and the outer side of the two clamping blocks (8) is fixedly connected with a sliding column (21), the sliding column (21) is slidably connected to the support frame (2), and a spring (22) is arranged outside the sliding column (21) and between the clamping block (8) and the support frame (2).

6. The hydraulic cylinder sleeve auxiliary device according to claim 5, characterized in that: A cylinder body (18) is arranged on the top of the workbench (1), an inlay groove (19) is provided inside the cylinder body (18), and the outside of the clamping block (8) is an arc-shaped structure.

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