Fixing tool for hydraulic oil cylinder of excavator

Abstract

The utility model discloses a fixing tool for a hydraulic oil cylinder of an excavator, which belongs to the technical field of hydraulic oil cylinder fixing and comprises a fixing shell, and first bearings are arranged on the opposite inner walls of the fixing shell. The device has the beneficial effects that by arranging the grab handle, the spring, the clamping rod and the clamping groove, the grab handle drives the circular plate to move through the movable rod under the elastic force action of the spring by pulling the grab handle, so that the movable plate drives the clamping rod to be separated from the clamping groove; a first rotating plate drives a right-hand threaded column and a left-hand threaded column to rotate in threaded barrels through a first rotating shaft, the two threaded barrels drive two limiting bases to get close to each other through two connecting blocks, the limiting bases drive arc-shaped limiting plates to be in lap joint with the surface of the hydraulic oil cylinder body, and by loosening a grab handle, one end of a clamping rod is clamped into a clamping groove; and the position of the first rotating plate is conveniently fixed, and the situation that the stability of the hydraulic oil cylinder body is affected due to autorotation of the first rotating plate is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinder fixing, and more specifically, to a hydraulic cylinder fixing tool for an excavator. Background Art

[0002] The hydraulic cylinder is an actuator in the hydraulic transmission system. It is an energy conversion device that converts hydraulic energy into mechanical energy and is used to drive the working mechanism to do linear reciprocating motion or reciprocating swing. When the hydraulic cylinder is working, if the object being pulled is too heavy, the hydraulic cylinder will vibrate or shake during the rising process, which is not only not conducive to the work of the hydraulic cylinder, but also causes the fixing of the hydraulic cylinder to loosen in the long run. However, the existing excavator hydraulic cylinder fixing tooling has poor stability for the fixing of the hydraulic cylinder and is inconvenient to operate. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an excavator hydraulic cylinder fixing tool, which has the characteristics of high fixing stability of the hydraulic cylinder and convenient operation.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides a fixing tool for an excavator hydraulic cylinder, comprising a fixing shell, wherein the relative inner walls of the fixing shell are provided with first bearings, the interiors of the two first bearings are provided with rotating shafts, the opposite ends of the two rotating shafts are respectively fixedly connected with a positive thread column and a reverse thread column, one end of the positive thread column is fixedly connected to one end of the reverse thread column through a connecting shaft, and one end of the rotating shaft is fixedly connected with a first rotating plate, a movable hole is opened on the surface of the first rotating plate, a movable rod is movably connected inside the movable hole, one end of the movable rod is fixedly connected to a circular plate, a clamping rod is fixedly connected to the surface of the circular plate, a clamping groove is opened on the side surface of the fixing shell, one end of the clamping rod is clamped in the interior of the clamping groove, a spring is movably sleeved on the surface of the movable rod, one end of the spring is fixedly connected to the circular plate, the other end of the spring is fixedly connected to the first rotating plate, and the other end of the movable rod is sleeved There is a second bearing, and the end face of the second bearing is fixedly connected with a handle, the surfaces of the positive threaded column and the reverse threaded column are threadedly connected with threaded tubes, the surfaces of the two threaded tubes are fixedly connected with connecting blocks, the top of the fixed shell is provided with a rectangular through hole, the two connecting blocks are fixedly connected with the limiting seats through the rectangular through hole, the relative inner walls of the two limiting seats are provided with first threaded holes, the interiors of the two first threaded holes are threadedly connected with first threaded columns, the relative ends of the two first threaded columns are sleeved with third bearings, the relative surfaces of the two third bearings are fixedly connected with arc-shaped limiting plates, the inner walls of the two arc-shaped limiting plates are overlapped with the same hydraulic cylinder body, the other ends of the two first threaded columns are fixedly connected with second rotating plates, the surfaces of the two second rotating plates are provided with second threaded holes, the interiors of the two second threaded holes are threadedly connected with bolts, and one end of the two bolts overlaps with the surface of the limiting seat.

[0007] When the hydraulic cylinder fixing tooling of the excavator of the present technical solution is used, by pulling the handle, the handle drives the circular plate to move through the movable rod under the elastic force of the spring, so that the movable plate drives the clamping rod to disengage from the clamping slot. At the same time, by shaking the handle, the handle drives the first rotating plate to rotate, so that the first rotating plate drives the positive thread column and the reverse thread column to rotate inside the threaded barrel through the first rotating shaft, so that the two threaded barrels move on the surfaces of the positive thread column and the reverse thread column respectively, so that the two threaded barrels drive the two limit seats to approach each other through the two connecting blocks, so that the limit seat drives the arc-shaped limit plate to engage with the surface of the hydraulic cylinder body. The first swivel plate is connected to the hydraulic cylinder body by the second rotating plate, and the first swivel plate is connected to the hydraulic cylinder body by the second rotating plate. The first swivel plate is connected to the hydraulic cylinder body by the second rotating plate. The first swivel plate is connected to the hydraulic cylinder body by the first threaded hole. The first threaded hole drives the arc-shaped limit plate to overlap the surface of the hydraulic cylinder body, which is convenient for fixing hydraulic cylinder bodies of different diameters. The bolt is rotated so that one end of the bolt overlaps the surface of the limit seat, which is convenient for fixing the position of the second rotating plate and improving the stability of the hydraulic cylinder body.

[0008] Furthermore, the surface of the threaded cylinder is fixedly connected with a limiting block, the inner wall of the fixed shell is provided with a limiting groove, and the limiting block is slidably connected inside the limiting groove.

[0009] Furthermore, there are multiple card slots, and the multiple card slots are distributed in a ring shape on the side surface of the fixed shell.

[0010] Furthermore, a sliding block is fixedly connected to the bottom of the limiting seat, a sliding groove is provided on the top of the fixed shell, and the sliding block is slidably connected inside the sliding groove.

[0011] Furthermore, rubber pads are provided on the inner walls of the arc-shaped limiting plate and the limiting seat.

[0012] Furthermore, a limiting hole is provided on the surface of the limiting seat, a limiting column is fixedly connected to the surface of the arc-shaped limiting plate, and the limiting column is slidably connected inside the limiting column.

[0013] (3) Beneficial effects

[0014] In summary, the utility model has the following beneficial effects:

[0015] 1. The fixing fixture of the hydraulic cylinder of the excavator is provided with a handle, a spring, a clamping rod and a clamping slot. By pulling the handle, the handle drives the circular plate to move through the movable rod under the elastic force of the spring, so that the movable plate drives the clamping rod to disengage from the clamping slot. At the same time, by shaking the handle, the handle drives the first rotating plate to rotate, so that the first rotating plate drives the positive thread column and the reverse thread column to rotate inside the threaded cylinder through the first rotating shaft, so that the two threaded cylinders move on the surfaces of the positive thread column and the reverse thread column respectively, so that the two threaded cylinders drive the two limit seats to approach each other through the two connecting blocks, so that the limit seat drives the arc-shaped limit plate to overlap with the surface of the hydraulic cylinder body, and by loosening the handle, one end of the clamping rod is clamped in the inside of the clamping slot, so as to fix the position of the first rotating plate and prevent the first rotating plate from rotating and affecting the stability of the hydraulic cylinder body;

[0016] 2. The excavator hydraulic cylinder fixing fixture is provided with a second rotating plate, an arc-shaped limit plate and a bolt. By rotating the second rotating plate, the second rotating plate drives the first threaded column to rotate inside the first threaded hole, so that the first threaded column drives the arc-shaped limit plate to overlap the surface of the hydraulic cylinder body, which is convenient for fixing hydraulic cylinder bodies of different diameters. By rotating the bolt, one end of the bolt overlaps the surface of the limit seat, which is convenient for fixing the position of the second rotating plate and improving the stability of the hydraulic cylinder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the drawings required for describing the specific implementation or the prior art will be briefly introduced below. Obviously, the drawings described below are only one implementation of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic structural diagram of a three-dimensional cross section of the utility model;

[0019] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0020] Figure 3 It is a structural schematic diagram of a three-dimensional cross-section of the limit seat in the utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the utility model.

[0022] The symbols in the accompanying drawings are:

[0023] 1. Fixed shell; 2. Positive thread column; 3. Reverse thread column; 4. First rotating plate; 5. Movable hole; 6. Movable rod; 7. Circular plate; 8. Clamping rod; 9. Clamping groove; 10. Spring; 11. Handle; 12. Threaded cylinder; 13. Limiting groove; 14. Limiting block; 15. Connecting block; 16. Limiting seat; 17. Slide groove; 18. Sliding block; 19. First thread column; 20. Arc-shaped limiting plate; 21. Hydraulic cylinder body; 22. Second rotating plate; 23. Bolt; 24. Limiting hole; 25. Limiting column; 26. Rubber pad. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, the technical scheme in the specific implementation mode of the utility model is clearly and completely described below to further illustrate the utility model. Obviously, the specific implementation mode described is only a part of the implementation mode of the utility model, rather than all styles.

[0025] Example:

[0026] The following is combined with Figure 1-4 The utility model is described in further detail.

[0027] See also Figure 1-4The utility model provides a technical solution: a fixing tool for an excavator hydraulic cylinder, comprising a fixing shell 1, first bearings are arranged on the relative inner walls of the fixing shell 1, rotating shafts are passed through the interiors of the two first bearings, the opposite ends of the two rotating shafts are respectively fixedly connected with a positive thread column 2 and a reverse thread column 3, one end of the positive thread column 2 is fixedly connected with one end of the reverse thread column 3 through a connecting shaft, and one end of the rotating shaft is fixedly connected with a first rotating plate 4, a movable hole 5 is opened on the surface of the first rotating plate 4, a movable rod 6 is movably connected inside the movable hole 5, one end of the movable rod 6 is fixedly connected with a circular plate 7, a clamping rod 8 is fixedly connected to the surface of the circular plate 7, a clamping groove 9 is opened on the side of the fixing shell 1, one end of the clamping rod 8 is clamped in the interior of the clamping groove 9, a spring 10 is movably sleeved on the surface of the movable rod 6, one end of the spring 10 is fixedly connected to the circular plate 7, the other end of the spring 10 is fixedly connected to the first rotating plate 4, the other end of the movable rod 6 is sleeved with a second bearing, and the second bearing The end face is fixedly connected with a handle 11, the surfaces of the positive threaded column 2 and the reverse threaded column 3 are threadedly connected with a threaded tube 12, the surfaces of the two threaded tubes 12 are fixedly connected with a connecting block 15, a rectangular through hole is provided on the top of the fixed shell 1, the two connecting blocks 15 are fixedly connected with a limiting seat 16 through the rectangular through hole, the relative inner walls of the two limiting seats 16 are provided with a first threaded hole, the interiors of the two first threaded holes are threadedly connected with a first threaded column 19, the opposite ends of the two first threaded columns 19 are sleeved with a third bearing, the opposite surfaces of the two third bearings are fixedly connected with an arc-shaped limiting plate 20, the inner walls of the two arc-shaped limiting plates 20 are overlapped with the same hydraulic cylinder body 21, the other ends of the two first threaded columns 19 are fixedly connected with a second rotating plate 22, the surfaces of the two second rotating plates 22 are provided with a second threaded hole, the interiors of the two second threaded holes are threadedly connected with bolts 23, and one end of the two bolts 23 overlaps the surface of the limiting seat 16.

[0028] Specifically, the surface of the threaded cylinder 12 is fixedly connected with a limiting block 14 , the inner wall of the fixed shell 1 is provided with a limiting groove 13 , and the limiting block 14 is slidably connected inside the limiting groove 13 .

[0029] By adopting the above technical solution, the limiting block 14 slides inside the limiting groove 13 to limit the threaded barrel 12 .

[0030] Specifically, there are multiple card slots 9 , and the multiple card slots 9 are distributed in a ring shape on the side surface of the fixed shell 1 .

[0031] Specifically, a slider 18 is fixedly connected to the bottom of the limiting seat 16 , a slide groove 17 is provided on the top of the fixed shell 1 , and the slider 18 is slidably connected inside the slide groove 17 .

[0032] By adopting the above technical solution, the slider 18 slides inside the slide groove 17 to limit the limit seat 16, so that the limit seat 16 is more stable when moving.

[0033] Specifically, rubber pads 26 are provided on the inner walls of the arc-shaped limiting plate 20 and the limiting seat 16 .

[0034] By adopting the above technical solution, the friction between the arc-shaped limiting plate 20 and the limiting seat 16 and the hydraulic cylinder body 21 is increased by the rubber pad 26, so that the hydraulic cylinder body 21 is firmly fixed.

[0035] Specifically, a limiting hole 24 is provided on the surface of the limiting seat 16 , and a limiting column 25 is fixedly connected to the surface of the arc-shaped limiting plate 20 , and the limiting column 25 is slidably connected inside the limiting column 25 .

[0036] By adopting the above technical solution, the limiting column 25 slides inside the limiting hole 24 to limit the arc-shaped limiting plate 20 .

[0037] The working principle of the utility model is:

[0038] When the utility model is in use, the hydraulic cylinder body 21 is first placed between the two limiting seats 16, and the handle 11 is pulled. Under the elastic force of the spring 10, the handle 11 drives the circular plate 7 to move through the movable rod 6, so that the movable plate drives the clamping rod 8 to disengage from the clamping groove 9. At the same time, the handle 11 is shaken to drive the first rotating plate 4 to rotate, so that the first rotating plate 4 drives the positive thread column 2 and the reverse thread column 3 to rotate inside the threaded cylinder 12 through the first rotating shaft, so that the two threaded cylinders 12 move on the surfaces of the positive thread column 2 and the reverse thread column 3 respectively, and the limiting block 14 slides inside the limiting groove 13, so that the two threaded cylinders 12 pass through the two connecting blocks 15. The two limit seats 16 are driven to approach each other, so that the limit seat 16 drives the arc limit plate 20 to overlap with the surface of the hydraulic cylinder body 21, and by loosening the handle 11, one end of the clamping rod 8 is clamped in the inside of the clamping groove 9 to fix the position of the first rotating plate 4, and then by rotating the second rotating plate 22, the second rotating plate 22 drives the first threaded column 19 to rotate inside the first threaded hole, so that the first threaded column 19 drives the arc limit plate 20 to overlap with the surface of the hydraulic cylinder body 21 to fix the hydraulic cylinder body 21, and the bolt 23 is rotated so that one end of the bolt 23 overlaps with the surface of the limit seat 16 to fix the position of the second rotating plate 22.

[0039] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A fixing tool for a hydraulic cylinder of an excavator, comprising a fixing shell (1), characterized in that: First bearings are arranged on opposite inner walls of the fixed shell (1), and rotating shafts are passed through the interiors of the two first bearings. The opposite ends of the two rotating shafts are respectively fixedly connected with a positive thread column (2) and a negative thread column (3), one end of the positive thread column (2) is fixedly connected to one end of the negative thread column (3) via a connecting shaft, and one end of the rotating shaft is fixedly connected to a first rotating plate (4), a movable hole (5) is opened on the surface of the first rotating plate (4), and a movable rod (6) is movably connected inside the movable hole (5), and one end of the movable rod (6) is fixedly connected to the movable hole (5). A circular plate (7) is connected, a clamping rod (8) is fixedly connected to the surface of the circular plate (7), a clamping groove (9) is opened on the side of the fixed shell (1), one end of the clamping rod (8) is clamped in the inside of the clamping groove (9), a spring (10) is movably sleeved on the surface of the movable rod (6), one end of the spring (10) is fixedly connected to the circular plate (7), the other end of the spring (10) is fixedly connected to the first rotating plate (4), the other end of the movable rod (6) is sleeved with a second bearing, and the end surface of the second bearing is fixedly connected to a gripping The handle (11) is provided with a threaded cylinder (12) on the surface of the positive threaded column (2) and the reverse threaded column (3), and the surfaces of the two threaded cylinders (12) are fixedly connected with a connecting block (15), and the top of the fixed shell (1) is provided with a rectangular through hole, and the two connecting blocks (15) are fixedly connected with a limiting seat (16) through the rectangular through hole, and the opposite inner walls of the two limiting seats (16) are provided with a first threaded hole, and the interiors of the two first threaded holes are threadedly connected with a first threaded column (19), and the two first threaded columns (19) are fixedly connected with each other. 9), the opposite ends of the two third bearings are sleeved with third bearings, the opposite surfaces of the two third bearings are fixedly connected with arc-shaped limit plates (20), the inner walls of the two arc-shaped limit plates (20) are overlapped with the same hydraulic cylinder body (21), the other ends of the two first threaded columns (19) are fixedly connected with second rotating plates (22), the surfaces of the two second rotating plates (22) are provided with second threaded holes, the insides of the two second threaded holes are threadedly connected with bolts (23), and one end of the two bolts (23) overlaps with the surface of the limit seat (16).

2. The fixing tool for the hydraulic cylinder of an excavator according to claim 1, characterized in that: The surface of the threaded cylinder (12) is fixedly connected to a limiting block (14), the inner wall of the fixed shell (1) is provided with a limiting groove (13), and the limiting block (14) is slidably connected inside the limiting groove (13).

3. The fixing tool for the hydraulic cylinder of an excavator according to claim 1, characterized in that: There are a plurality of the card slots (9), and the plurality of card slots (9) are distributed in a ring shape on the side surface of the fixed shell (1).

4. The fixing tool for the hydraulic cylinder of an excavator according to claim 1, characterized in that: The bottom of the limiting seat (16) is fixedly connected with a sliding block (18), the top of the fixed shell (1) is provided with a sliding groove (17), and the sliding block (18) is slidably connected inside the sliding groove (17).

5. The fixing tool for the hydraulic cylinder of an excavator according to claim 1, characterized in that: Rubber pads (26) are provided on the inner walls of the arc-shaped limiting plate (20) and the limiting seat (16).

6. The fixing tool for the hydraulic cylinder of an excavator according to claim 1, characterized in that: A limiting hole (24) is provided on the surface of the limiting seat (16), a limiting column (25) is fixedly connected to the surface of the arc-shaped limiting plate (20), and the limiting column (25) is slidably connected inside the limiting column (25).

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