Acetylene screw feeder shaft sleeve dismounting tool

Abstract

The utility model relates to the technical field of shaft sleeve dismounting, in particular to a shaft sleeve dismounting tool for an acetylene screw feeder. Comprising a sleeve, a plurality of radial shaft sleeve locking mechanisms are evenly arranged on the inner wall of the periphery of the sleeve, an axial ejection mechanism is arranged on the sleeve, the radial ejection mechanism comprises a limiting hole, a locking nut and a radial jackscrew, and the locking nut is fixedly connected in the limiting hole; the shaft sleeve is taken out according to the mechanical puller principle, that is, the sleeve is sleeved outside the shaft sleeve, the shaft sleeve is fixed by the plurality of radial shaft sleeve locking mechanisms, and then the shaft sleeve is detached by the axial ejection mechanism. The shaft sleeve in the screw feeder can be quickly, efficiently and conveniently disassembled without damage under the condition of no fire, equipment maintenance work is quickly completed on the premise that the shaft sleeve is not damaged, a large amount of time is won for safe production of the device, a large amount of funds for purchasing spare parts are effectively saved, and expenses of material resources, financial resources and manpower are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft sleeve disassembly, in particular to a shaft sleeve disassembly tool for an acetylene screw feeder. Background Art

[0002] The acetylene screw feeder is part of the BDO device for chemical production. Every time the acetylene screw feeder is inspected and repaired, the sleeve needs to be removed. Because its material is soft in physical properties and easily adheres to the shaft, the sleeve is often cut off by hot work in the past. There are many unsafe factors in the on-site hot work, and fire often occurs. The previous disassembly steps are as follows: ① Remove the acetylene screw feeder from the site; ② Mark the various components of the pump and disassemble them in turn; ③ Because the sleeve is adhered to the shaft for a long time, it is difficult to remove it. It needs to be removed by brute force using tools such as oxygen, acetylene, copper rods, and clamps. The existing disassembly method not only wastes manpower, material and financial resources, but also increases the risk factor on site. Utility Model Content

[0003] The utility model aims at the deficiencies of the prior art and provides an acetylene screw feeder shaft sleeve disassembly tool which can quickly, efficiently and conveniently disassemble the shaft sleeve in the acetylene screw feeder without damage by adopting a non-fire method.

[0004] To achieve the above technical objectives, the utility model proposes the following technical solutions: an acetylene screw feeder sleeve disassembly tool, comprising a sleeve, a plurality of radial sleeve locking mechanisms are evenly arranged on the inner wall around the sleeve, an axial ejection mechanism is arranged on the sleeve, the radial sleeve locking mechanism comprises a limiting hole, a locking nut and a radial top screw, the locking nut is fixedly connected in the limiting hole, the radial top screw is installed in the locking nut, the axial ejection mechanism comprises a mounting hole, a fixing nut and an axial top screw, the mounting hole is opened at the top of the sleeve, the fixing nut is fixedly connected in the mounting, the axial top screw is installed in the fixing nut, and one end of the axial top screw close to the radial sleeve locking mechanism is rotatably connected with a top shaft.

[0005] Furthermore, one end of the radial top screw away from the limiting hole is fixedly connected to a rotating handle 1, and one end of the axial top screw away from the sleeve is fixedly connected to a rotating handle 2.

[0006] Furthermore, the radial sleeve locking mechanism also includes an arc plate, which is rotatably mounted on one end of the radial top screw close to the sleeve, and the inner wall of the arc plate is provided with a plurality of anti-slip grooves, and the inner wall of the sleeve is provided with an accommodating cavity hole for accommodating the arc plate.

[0007] Furthermore, sliding holes are provided on the inner wall of the sleeve and on both sides of the limiting hole, and a sliding rod is slidably connected in the sliding hole, and one end of the sliding rod is fixedly connected to the arc plate.

[0008] Furthermore, a groove is provided at the bottom of the axial top screw, a top shaft is provided in the groove, a raceway is provided on the outer wall of the top shaft and the inner wall of the groove, and a ball is installed between the two raceways.

[0009] Compared with the prior art, the beneficial effects produced by the utility model are: the utility model has a novel structure, ingenious conception, simple and convenient operation, and has the following advantages compared with the prior art: the utility model is simple to manufacture and easy to operate, and the shaft sleeve is removed by utilizing the principle of a mechanical puller, that is, by putting a sleeve on the outside of the shaft sleeve, fixing the shaft sleeve with a plurality of radial shaft sleeve locking mechanisms, and then removing the shaft sleeve with an axial ejection mechanism. It can be used when adhesion occurs between the shaft sleeve and the shaft, and the shaft sleeve in the screw feeder can be quickly, efficiently and conveniently disassembled without damage without using a fire, and the maintenance of the equipment can be quickly completed without damaging the shaft sleeve, which wins a lot of time for the safe production of the device, effectively saves a lot of funds for purchasing spare parts, and reduces material, financial and human expenditures; the coordinated use of structures such as arc plates and anti-slip patterns can reduce damage to the shaft sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0012] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0013] Figure 4 It is another cross-sectional structural schematic diagram of the utility model;

[0014] Figure 5 It is a schematic diagram of the structure of the second embodiment.

[0015] In the figure, 1. sleeve; 2. locking nut; 3. radial top screw; 4. fixing nut; 5. axial top screw; 6. top shaft; 7. rotating handle 1; 8. rotating handle 2; 9. arc plate; 10. anti-slip pattern; 11. accommodating chamber 1; 12. sliding rod; 13. sliding rod; 14. accommodating chamber 2; 15. groove; 16. raceway; 17. ball bearing; 18. sliding shaft. DETAILED DESCRIPTION

[0016] The following are specific embodiments of the present invention, and the technical solution of the present invention is further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0017] Example 1: Figure 1-4As shown, the utility model provides an acetylene screw feeder sleeve removal tool, including a sleeve 1, a plurality of radial sleeve locking mechanisms are evenly arranged on the inner wall around the sleeve 1, an axial ejection mechanism is provided on the sleeve 1, the radial sleeve locking mechanism includes a limiting hole, a locking nut 2 and a radial top screw 3, the locking nut 2 is fixedly connected in the limiting hole, the radial top screw 3 is installed in the locking nut 2, the axial ejection mechanism includes a mounting hole, a fixing nut 4 and an axial top screw 5, the mounting hole is opened at the top of the sleeve 1, the fixing nut 4 is fixedly connected in the mounting hole, the axial top screw 5 is installed in the fixing nut 4, and one end of the axial top screw 5 close to the radial sleeve locking mechanism is rotatably connected with a top shaft 6.

[0018] like Figure 1 and 2 As shown, the radial sleeve locking mechanism is used to lock the sleeve, and the radial ejection mechanism is used to pull out the sleeve. In the present embodiment, there are no less than three groups of radial sleeve locking mechanisms, which are evenly distributed on the wall of the sleeve 1. Specifically, the sleeve 1 is first sleeved on the outer periphery of the sleeve, and then the axial top screw 5 is turned so that the top shaft 6 extends into the sleeve and supports the shaft in the sleeve. At the same time, the radial top screw 3 is turned to move in the direction of the sleeve. The radial top screw 3 locks the sleeve, and the axial top screw 5 is turned in the opposite direction to bring the sleeve out of the shaft, thereby completing the disassembly of the sleeve.

[0019] The end of the radial top screw 3 away from the limiting hole is fixedly connected to a rotating handle 1 7 , and the end of the axial top screw 5 away from the sleeve 1 is fixedly connected to a rotating handle 2 8 .

[0020] like Figure 1 As shown, the functions of the rotating handle 1 7 and the rotating handle 2 8 are to facilitate the screwing of the radial top screw 3 and the axial top screw 5.

[0021] The radial sleeve locking mechanism also includes an arc plate 9, which is rotatably mounted on one end of the radial top screw 3 close to the sleeve 1. The inner wall of the arc plate 9 is provided with a plurality of anti-slip grooves 10, and the inner wall of the sleeve 1 is provided with an accommodating cavity 11 for accommodating the arc plate 9.

[0022] like Figure 2 As shown, the arc plate 9 can increase the contact area with the outer wall of the sleeve, thereby improving the protection effect of the sleeve. The anti-slip pattern 10 increases the friction between the arc plate 9 and the sleeve, thereby preventing the arc plate 9 and the sleeve from sliding relative to each other. The accommodating cavity 11 can facilitate hiding the arc plate 9 in the sleeve 1, thereby improving the application scope of the disassembly tool.

[0023] A slide bar 12 is fixedly connected to the top of the arc plate 9 , a slide groove 13 is provided on the top of the sleeve 1 and is slidably connected to the end of the slide bar 12 away from the arc plate 9 , and a second accommodating cavity 14 for accommodating the slide bar 12 is provided on the inner wall of the sleeve 1 .

[0024] like Figure 3As shown, in the present embodiment, since the arc plate 9 is rotatably connected with the radial top screw 3, the arc plate 9 may rotate during the process of twisting the radial top screw 3, causing the arc plate 9 to be unable to interfere with the shaft sleeve. Therefore, a sliding rod 12 is fixed to the top of the arc plate 9, and one end of the sliding rod 12 is slidably installed in the sliding groove 13. During the process of twisting the radial top screw 3, the sliding rod 12 slides along the sliding groove 13, effectively preventing the arc plate 9 from rotating. The second accommodating chamber 14 is connected to the first accommodating chamber 11, and the second accommodating chamber 14 is used to hide the sliding rod 13.

[0025] A groove 15 is formed at the bottom of the axial top screw 5 , and the top shaft 6 is arranged in the groove 15 . A raceway 16 is formed on the outer wall of the top shaft 6 and the inner wall of the groove 15 , and a plurality of balls 17 are installed between the two raceways 16 .

[0026] like Figure 4 As shown, the axial top screw 5 is rotatably connected to the top shaft 6 via the ball 17. When the top shaft 6 is against the shaft, the axial top screw 5 is twisted, and the axial top screw 5 can rotate on the top shaft 6, while the top shaft 6 is fixed on the shaft, which effectively reduces the rigid collision friction between the top shaft 6 and the shaft, reduces the risk of damage to the top shaft 6 and the shaft, and thus reduces the maintenance frequency of the disassembly tool.

[0027] Principle of use: Sleeve the sleeve 1 of the disassembly tool onto the outer circumference of the sleeve, turn the axial top screw 5 to make the top shaft 6 press against the shaft end face in the sleeve, then turn the radial top screw 3 to drive the arc plate 9 to move toward the sleeve to lock the sleeve, then turn the axial top screw 5 in the opposite direction, and the sleeve 1 drives the sleeve to pull out the shaft, thus completing the disassembly of the sleeve.

[0028] Example 2: Figure 5 As shown, in this embodiment, in order to prevent the arc plate 9 from rotating, two sliding shafts 18 can be fixedly connected to the side of the arc plate 9 away from the sleeve. The sliding shafts 18 are slidably installed on the sleeve 1, which can also achieve the purpose of preventing the arc plate 9 from rotating.

[0029] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An acetylene screw feeder sleeve removal tool, characterized in that: The invention comprises a sleeve (1), wherein a plurality of radial sleeve locking mechanisms are evenly arranged on the inner wall around the sleeve (1), and an axial ejection mechanism is arranged on the sleeve (1), wherein the radial sleeve locking mechanism comprises a limiting hole, a locking nut (2) and a radial ejection screw (3), wherein the locking nut (2) is fixedly connected in the limiting hole, and the radial ejection screw (3) is installed in the locking nut (2), and the axial ejection mechanism comprises a mounting hole, a fixing nut (4) and an axial ejection screw (5), wherein the mounting hole is formed at the top of the sleeve (1), the fixing nut (4) is fixedly connected in the mounting hole, and the axial ejection screw (5) is installed in the fixing nut (4), and the axial ejection screw (5) is rotatably connected to a ejection shaft (6) at one end of the axial ejection screw (5) close to the radial sleeve locking mechanism.

2. The acetylene screw feeder sleeve removal tool according to claim 1, characterized in that: One end of the radial top screw (3) away from the limiting hole is fixedly connected to a rotating handle 1 (7), and one end of the axial top screw (5) away from the sleeve (1) is fixedly connected to a rotating handle 2 (8).

3. The acetylene screw feeder sleeve removal tool according to claim 1, characterized in that: The radial sleeve locking mechanism also includes an arc plate (9), the arc plate (9) being rotatably mounted on one end of the radial top screw (3) close to the sleeve (1), a plurality of anti-slip grooves (10) being provided on the inner wall of the arc plate (9), and an accommodating cavity (11) for accommodating the arc plate (9) being provided on the inner wall of the sleeve (1).

4. The acetylene screw feeder sleeve removal tool according to claim 3, characterized in that: A slide bar (12) is fixedly connected to the top of the arc-shaped plate (9), a slide groove (13) is provided on the top of the sleeve (1) and is slidably connected to an end of the slide bar (12) away from the arc-shaped plate (9), and a second accommodating cavity (14) for accommodating the slide bar (12) is provided on the inner wall of the sleeve (1).

5. The acetylene screw feeder sleeve removal tool according to claim 1, characterized in that: A groove (15) is provided at the bottom of the axial top screw (5), the top shaft (6) is arranged in the groove (15), a raceway (16) is provided on the outer wall of the top shaft (6) and the inner wall of the groove (15), and a plurality of balls (17) are installed between the two raceways (16).

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