Shaft sleeve dismounting tool

Abstract

The shaft sleeve dismounting tool comprises a dismounting rod, a top block, an expansion workpiece and a first positioning workpiece, the top block, the expansion workpiece and the first positioning workpiece are sequentially and movably arranged on the dismounting rod, the top block and the expansion workpiece are suitable for penetrating through a shaft sleeve, and the top block and the first positioning workpiece are suitable for getting close to the expansion workpiece from the two sides of the shaft sleeve correspondingly. When the ejector blocks are close to the expansion workpiece, at least part of the ejector blocks are suitable for being embedded into the expansion workpiece, and at least part of the expansion workpiece expands outwards, so that the ejector blocks and one side of the shaft sleeve are at least clamped in the length direction of the dismounting rod, the shaft sleeve and equipment can be helped to be dismounted and separated, and the dismounting and separating difficulty of the shaft sleeve and the equipment is effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of disassembly tooling, and in particular to a shaft sleeve disassembly tooling. Background Art

[0002] A centrifuge is a machine that uses centrifugal force to separate liquids from solid particles or components in a mixture of liquids and liquids. Since the centrifugal process of a centrifuge is mainly achieved by rotation, components such as pulleys and sleeves are usually required. During the use of a flameproof centrifuge, the contact area between the pulley and the sleeve is often unable to be disassembled normally due to rust and other problems.

[0003] However, the existing sleeve disassembly process has the following defects: when disassembling the sleeve, if the sleeve cannot be disassembled due to rust, the small end cover of the centrifuge needs to be disassembled first before the sleeve can be disassembled. This disassembly method involves the disassembly and assembly of the equipment, which is relatively complicated and time-consuming. Summary of the invention

[0004] One purpose of the present application is to provide a shaft sleeve disassembly tool that can effectively reduce the difficulty of disassembling and separating the shaft sleeve from the equipment.

[0005] To achieve the above objectives, the technical solution adopted in the present application is: a sleeve disassembly tool, comprising a disassembly rod, a top block, an expansion workpiece and a first positioning workpiece, wherein the top block, the expansion workpiece and the first positioning workpiece are movably arranged on the disassembly rod in sequence, the top block and the expansion workpiece are suitable for passing through the sleeve, the top block and the first positioning workpiece are suitable for approaching the expansion workpiece from both sides of the sleeve respectively, and when the top block approaches the expansion workpiece, at least part of the top block is suitable for being embedded in the expansion workpiece and causing at least part of the expansion workpiece to expand outward, thereby being clamped with one side of the sleeve at least in the length direction of the disassembly rod.

[0006] In some embodiments, the expansion workpiece has a plurality of expansion joints circumferentially formed at one end close to the top block.

[0007] In some embodiments, the length of the expansion workpiece is greater than the length of the sleeve, and the first positioning workpiece is adapted to abut against one side of the sleeve, and at least a portion of the expansion workpiece extends out from the other side of the sleeve.

[0008] In some embodiments, at least a portion of the expansion joint is exposed outside the sleeve; and the expansion workpiece is spaced apart from the sleeve at least at one end close to the top block.

[0009] In some embodiments, the top block is a conical structure or a frustum structure, and the smaller end of the top block is close to the expansion workpiece.

[0010] In some embodiments, the inner diameter of the expansion workpiece at one end close to the top block is larger than that of the smaller end of the top block, and the inner diameter of the expansion workpiece at one end close to the top block is smaller than that of the larger end of the top block.

[0011] In some embodiments, the width of the top block is smaller than the diameter of the shaft hole on the sleeve, and the width of the expansion workpiece is smaller than the diameter of the shaft hole on the sleeve.

[0012] In some embodiments, the difference between the width of the top block and the diameter of the shaft hole on the sleeve is smaller than the thickness of the expanded workpiece.

[0013] In some embodiments, a second positioning workpiece is further included. The second positioning workpiece is located on a side of the first positioning workpiece away from the top block, and the second positioning workpiece is spaced apart from the first positioning workpiece.

[0014] In some embodiments, the top block is connected to the disassembly rod screw; the first positioning workpiece is connected to the disassembly rod screw; and the second positioning workpiece is connected to the disassembly rod screw.

[0015] Compared with the prior art, the beneficial effect of the present application is that the shaft sleeve disassembly tool of the present application can disassemble the shaft sleeve, especially the shaft sleeve on the explosion-proof centrifuge. The tool can complete the fastening between the shaft sleeve and the shaft sleeve by utilizing the working principle of the expansion bolt and the puller without disassembling the small end cover of the centrifuge, thereby realizing rapid disassembly and assembly operation, which is convenient and quick to operate, and can relatively easily disassemble the shaft sleeve fastened to the equipment by corrosion, without easily damaging the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure according to a preferred embodiment of the present application.

[0017] Figure 2 It is a schematic diagram of the connection with the shaft sleeve according to a preferred embodiment of the present application.

[0018] Figure 3 It is a schematic diagram of the state when installed to the shaft sleeve according to a preferred embodiment of the present application.

[0019] Figure 4 It is a schematic diagram of the state of an expansion workpiece when expanded according to a preferred embodiment of the present application.

[0020] Figure 5 It is a schematic diagram of the state of the shaft sleeve when it is pulled out according to a preferred embodiment of the present application.

[0021] In the figure: 1, disassembly rod; 2, top block; 3, expansion workpiece; 31, expansion joint; 4, first positioning workpiece; 5, second positioning workpiece; 6, shaft sleeve; 61, shaft hole. DETAILED DESCRIPTION

[0022] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application 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 cannot be understood as limiting the specific scope of protection of the present application.

[0024] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0025] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0026] The present application is further described below with reference to the accompanying drawings:

[0027] like Figures 1 to 5 As shown, the present application provides a sleeve disassembly tool, including a disassembly rod 1, a top block 2, an expansion workpiece 3 and a first positioning workpiece 4, the top block 2, the expansion workpiece 3 and the first positioning workpiece 4 are movably arranged on the disassembly rod 1 in sequence, the top block 2 and the expansion workpiece 3 are suitable for passing through the sleeve 6, the top block 2 and the first positioning workpiece 4 are suitable for approaching the expansion workpiece 3 from both sides of the sleeve 6 respectively, when the top block 2 approaches the expansion workpiece 3, at least part of the top block 2 is suitable for being embedded in the expansion workpiece 3, and at least part of the expansion workpiece 3 is expanded outward, so as to be clamped with one side of the sleeve 6 at least in the length direction of the disassembly rod 1.

[0028] The present application utilizes the change in the matching state brought about by the change in the positional relationship between the top block 2, the expansion workpiece 3 and the first positioning workpiece 4, so that the expansion workpiece 3 can change its structure and form inside the shaft sleeve 6, thereby cooperating and engaging with the shaft sleeve 6, thereby solving the defect that it is difficult to fix the shaft sleeve 6 with force from the outside of the equipment. Compared with the traditional shaft sleeve disassembly method, the solution of the present application does not require disassembly of the small end cover of the centrifuge, the operation steps are simpler and more convenient, and the efficiency of maintenance and replacement can be effectively improved.

[0029] like Figure 3 In the illustrated embodiment, a plurality of expansion joints 31 are provided along the circumferential direction at one end of the expansion workpiece 3 close to the top block 2 . The expansion joints 31 can be used to deform the one end of the expansion workpiece 3 close to the top block 2 , thereby achieving splitting and expansion.

[0030] It is worth noting that the expansion method is Figure 4 The blooming-shaped expansion structure in the illustrated embodiment may also be configured as a spherical-shaped expansion structure with a bulge in the middle and contracted ends according to actual conditions.

[0031] In some embodiments, the spacings between adjacent expansion joints 31 are equal, so that the expansion amplitudes at the expansion joints 31 are close.

[0032] like Figure 3 In the illustrated embodiment, the length of the expansion workpiece 3 is greater than the length of the sleeve 6, and the first positioning workpiece 4 is suitable for reaching one side of the sleeve 6 and allowing at least part of the expansion workpiece 3 to extend out of the other side of the sleeve 6. By positioning the first positioning workpiece 4, the expansion workpiece 3 can extend out of the inner side of the sleeve 6 and expand.

[0033] like Figure 3 In the illustrated embodiment, when the expansion workpiece 3 is nested in the sleeve 6 , at least part of the expansion seam 31 is exposed outside the sleeve 6 , ensuring that part of the structure of the expansion workpiece 3 after expansion can be located outside the sleeve 6 , thereby achieving a snap fit with the sleeve 6 .

[0034] like Figure 3 In the illustrated embodiment, the expansion workpiece 3 is spaced apart from the shaft sleeve 6 at least at one end close to the top block 2 , which can help the expansion workpiece 3 at the expansion joint 31 to deform and increase the deformation amplitude.

[0035] In some embodiments, the expansion workpiece 3 can be a DN steel pipe with a length of 100 mm and a wall thickness of 3 mm, and 16 expansion joints 31 with a length of 30 mm are evenly formed at one end of the steel pipe.

[0036] like Figure 2 In the illustrated embodiment, the top block 2 is a conical structure or a frustum structure, and the smaller end of the top block 2 is close to the expansion workpiece 3 .

[0037] In some embodiments, the top block 2 can be a cone with an internal threaded hole having a length of 50 mm, a diameter of 70 mm at the smaller end, and a diameter of 90 mm at the larger end.

[0038] In some embodiments, the inner diameter of the end of the expanded workpiece 3 close to the top block 2 is larger than the smaller end of the top block 2 , and the inner diameter of the end of the expanded workpiece 3 close to the top block 2 is smaller than the larger end of the top block 2 .

[0039] like Figure 3 In the illustrated embodiment, the width of the top block 2 is smaller than the diameter of the shaft hole 61 on the shaft sleeve 6, so as to ensure that the top block 2 can smoothly pass through the shaft sleeve 6 and avoid structural interference.

[0040] like Figure 3 In the illustrated embodiment, the width of the expansion workpiece 3 is smaller than the diameter of the shaft hole 61 on the shaft sleeve 6, so as to ensure that the top block 2 can smoothly pass through the shaft sleeve 6 and avoid structural interference.

[0041] like Figure 4 In the illustrated embodiment, the difference between the width of the top block 2 and the diameter of the shaft hole 61 on the sleeve 6 is smaller than the thickness of the expansion workpiece 3, so that the expansion workpiece 3 can be snap-fitted with the shaft hole 61 at a relatively small expansion amplitude.

[0042] like Figure 1 In the shown embodiment, a second positioning workpiece 5 is also included. The second positioning workpiece 5 is movably arranged on the disassembly rod 1. The second positioning workpiece 5 is located on the side of the first positioning workpiece 4 away from the top block 2. The second positioning workpiece 5 and the first positioning workpiece 4 are spaced apart. The second positioning workpiece 5 is used to bear external force to pull out the disassembly rod 1, thereby bringing out the sleeve 6.

[0043] It is worth noting that the interval between the first positioning workpiece 4 and the second positioning workpiece 5 needs to be able to meet the requirements of fixed cooperation with the external bracket.

[0044] In some embodiments, the top block 2 is screw-connected to the disassembly rod 1 , and the top block 2 can move along the disassembly rod 1 by a rotation operation.

[0045] In some embodiments, a nut is provided between the top block 2 and the disassembly rod 1 to further tighten and position the top block 2 on the disassembly rod 1 .

[0046] In some embodiments, the first positioning workpiece 4 is screw-connected to the disassembly rod 1 , and the first positioning workpiece 4 can move along the disassembly rod 1 through a rotation operation.

[0047] In some embodiments, a nut is disposed between the first positioning workpiece 4 and the disassembly rod 1 to further tighten and fix the first positioning workpiece 4 on the disassembly rod 1 .

[0048] In some embodiments, the second positioning workpiece 5 is screw-connected to the disassembly rod 1 , and the second positioning workpiece 5 can move along the disassembly rod 1 through a rotation operation.

[0049] In some embodiments, a nut is disposed between the second positioning workpiece 5 and the disassembly rod 1 to further tighten and position the second positioning workpiece 5 on the disassembly rod 1 .

[0050] In some embodiments, the first positioning workpiece 4 and the second positioning workpiece 5 can be flanges.

[0051] The use principle of the sleeve removal tool of this application is as follows Figures 2 to 5 As shown: the disassembly rod 1 equipped with the top block 2, the expansion workpiece 3, the first positioning workpiece 4 and the second positioning workpiece 5 is inserted into the shaft sleeve 6 with the end equipped with the top block 2. By presetting the distance between the top block 2 and the first positioning workpiece 4, it can be ensured that the expansion workpiece 3 is completely nested in the shaft sleeve 6. By rotating the first positioning workpiece 4, the top block 2 and the first positioning workpiece 4 are brought close to each other. During this process, the first positioning workpiece 4 will be stuck on the end face of the shaft sleeve 6, and the top block 2 continues to approach the shaft sleeve 6 until the top block 2 contacts the expansion workpiece 3 and expands the expansion part of the expansion workpiece 3. Confirmation is made by pulling the disassembly rod 1. If the disassembly rod 1 is difficult to pull out, the expansion part and the shaft sleeve 6 are matched. At this time, the second positioning workpiece 5 is matched with an external bracket (such as a bracket of a feed pipe) as a fixed position. By rotating the second positioning workpiece 5, the shaft sleeve 6 can be slowly removed.

[0052] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A shaft sleeve disassembly tool, characterized in that: It includes a disassembly rod, a top block, an expansion workpiece and a first positioning workpiece, wherein the top block, the expansion workpiece and the first positioning workpiece are movably arranged on the disassembly rod in sequence, the top block and the expansion workpiece are suitable for passing through the shaft sleeve, the top block and the first positioning workpiece are suitable for approaching the expansion workpiece from both sides of the shaft sleeve respectively, when the top block approaches the expansion workpiece, at least part of the top block is suitable for being embedded in the expansion workpiece, and at least part of the expansion workpiece is expanded outward, so as to be clamped with one side of the shaft sleeve at least in the length direction of the disassembly rod.

2. A sleeve disassembly tool as claimed in claim 1, characterized in that: The expansion workpiece is provided with a plurality of expansion joints along the circumferential direction at one end close to the top block.

3. A sleeve disassembly tool as claimed in claim 2, characterized in that: The length of the expansion workpiece is greater than the length of the sleeve, and the first positioning workpiece is suitable for abutting against one side of the sleeve and making at least a portion of the expansion workpiece protrude from the other side of the sleeve.

4. A shaft sleeve disassembly tool as claimed in claim 3, characterized in that: At least a portion of the expansion joint is exposed outside the shaft sleeve; the expansion workpiece is spaced apart from the shaft sleeve at least at one end close to the top block.

5. The shaft sleeve disassembly tool as claimed in claim 1, characterized in that: The top block is a conical structure or a frustum structure, and the smaller end of the top block is close to the expansion workpiece.

6. A shaft sleeve removal tool as claimed in claim 5, characterized in that: The inner diameter of the end of the expansion workpiece close to the top block is larger than that of the smaller end of the top block, and the inner diameter of the end of the expansion workpiece close to the top block is smaller than that of the larger end of the top block.

7. The shaft sleeve disassembly tool as claimed in claim 1, characterized in that: The width of the top block is smaller than the diameter of the shaft hole on the shaft sleeve, and the width of the expansion workpiece is smaller than the diameter of the shaft hole on the shaft sleeve.

8. A shaft sleeve removal tool as claimed in claim 7, characterized in that: The difference between the width of the top block and the diameter of the shaft hole on the sleeve is smaller than the thickness of the expanded workpiece.

9. A shaft sleeve removal tool as claimed in any one of claims 1 to 8, characterized in that: It also includes a second positioning workpiece, which is located at a side of the first positioning workpiece away from the top block, and the second positioning workpiece is spaced apart from the first positioning workpiece.

10. A shaft sleeve removal tool as claimed in claim 9, characterized in that: The top block is connected to the disassembly rod screw; the first positioning workpiece is connected to the disassembly rod screw; the second positioning workpiece is connected to the disassembly rod screw.

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