Dismounting tool for interference fit workpiece

Abstract

The utility model discloses an interference fit workpiece dismounting tool, which comprises a base, a jack and a steel frame, the jack is installed on the base, two ends of the base are provided with sliding chutes, two sliding blocks are symmetrically arranged in the sliding chutes, L-shaped bent shafts are arranged on the sliding blocks, and the L-shaped bent shafts on the two sliding blocks are symmetrically arranged. The side wall of the sliding groove is provided with an open groove matched with the L-shaped bent shaft, one end of the steel frame is provided with a shaft sleeve matched with the L-shaped bent shaft, the steel frame is hinged to the L-shaped bent shaft through the shaft sleeve, and the other end of the steel frame is provided with a workpiece clamping groove. The tool is simple in structure and convenient to use, and the problem that interference fit workpieces are difficult to disassemble can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment maintenance, in particular to an interference fit workpiece disassembly tool. Background Art

[0002] In the field of mechanical assembly, interference fit connections are widely used in the connection of key components such as shafts and bearings, shafts and hubs, and wheel rims and wheel cores due to their simple structure, good centering, large load-bearing capacity, and good impact resistance. However, the disassembly process of interference fit connections is relatively complicated, mainly due to factors such as high precision of the mating surfaces, high risk of damage during disassembly, the need for large equipment support, and non-detachable connections in design.

[0003] In the prior art, methods for disassembling interference fit workpieces mainly include hammering, pressing with a press, hot installation and cold removal, etc. These methods are limited in applicability and have low disassembly efficiency. Utility Model Content

[0004] In view of the defects in the prior art, the utility model provides an interference fit workpiece disassembly tool.

[0005] The utility model is realized by the following technical solutions:

[0006] A tool for disassembling an interference fit workpiece, comprising a base, a jack and a steel frame, wherein the jack is mounted on the base; two ends of the base are provided with slide grooves, two sliders are symmetrically arranged in the slide grooves, positive and negative lead screws are rotatably installed in the slide grooves, positive nuts and negative nuts are installed on the positive and negative lead screws, and the two sliders are respectively connected to the positive nut and the negative nut; an L-shaped bent shaft is provided on the slider, and the L-shaped bent shafts on the two sliders are symmetrically arranged, and the side walls of the slide groove are provided with slots matching the L-shaped bent shaft, one end of the steel frame is provided with a shaft sleeve matching the L-shaped bent shaft, the steel frame is hinged to the L-shaped bent shaft through the shaft sleeve, and the other end of the steel frame is a workpiece slot.

[0007] Preferably, matching mounting holes are provided on the jack and the base, and the jack is mounted on the base by bolts.

[0008] Preferably, a saddle is mounted on the lifting sleeve of the jack through threaded engagement.

[0009] Preferably, one end of the forward and reverse lead screws is connected to a knob.

[0010] Preferably, a plane groove matching with the shaft sleeve is provided at the inner bend of the L-shaped bent shaft.

[0011] The beneficial effects of the utility model are embodied in that the utility model has a simple structure, is easy to manufacture and use, has high portability and applicability, can effectively solve the problem that interference fit workpieces are difficult to disassemble, and can effectively shorten the maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0013] Figure 1 It is an axonometric drawing of the present utility model.

[0014] Figure 2 It is the front view of the utility model.

[0015] Figure 3 It is a top view of the utility model.

[0016] Figure 4 It is a left view of the utility model.

[0017] Figure 5 It is a partial cross-sectional view of the slideway of the utility model.

[0018] Figure 6 It is an axonometric drawing of the slider and the L-shaped bending shaft of the utility model.

[0019] In the attached drawings, 1, base; 2, jack; 3, saddle; 4, slide; 5, slider; 6, forward and reverse screws; 7, L-shaped elbow; 8, flat groove; 9, steel frame; 10, bushing; 11, workpiece slot. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0022] For ease of description, spatial relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature shown in a figure relative to another element or feature. It should be understood that the spatial terms are intended to include different orientations of the device in use or operation in addition to the orientation shown in the figures. For example, if the device in the figure is inverted, elements described as being "below" other elements or features will be positioned "above" the other elements or features. Thus, the exemplary term "below" may include both upper and lower orientations.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] The utility model is described in detail below in conjunction with the accompanying drawings: The utility model is an interference fit workpiece disassembly tool, comprising a base 1, a jack 2 and a steel frame 9, wherein the jack 2 is mounted on the base 1; two ends of the base 1 are provided with slide grooves 4, two sliders 5 are symmetrically arranged in the slide grooves 4, a positive and negative lead screw 6 is rotatably installed in the slide grooves 4, one end of the positive and negative lead screw 6 is connected to a knob, a positive nut and a negative nut are installed on the positive and negative lead screw 6, and the two sliders 5 are respectively connected to the positive nut and the negative nut; the slider 5 is provided with L The L-shaped bending axis, the L-shaped bending axis on the two sliding blocks 5 are symmetrically arranged, the side wall of the slide groove 4 is provided with a slot matching the L-shaped bending axis, one end of the steel frame 9 is provided with a sleeve 10 matching the L-shaped bending axis, the steel frame 9 is hinged on the L-shaped bending axis through the sleeve 10, and the other end of the steel frame 9 is a workpiece slot 11. The steel frame 9 needs to be replaced according to the workpiece to be disassembled. Taking the disassembly of the coupling as an example, the length of the workpiece slot 11 should be greater than or equal to the diameter of the coupling, and the width of the workpiece slot 11 should be greater than or equal to the thickness of the coupling.

[0025] The jack 2 and the base 1 are provided with matching mounting holes, and the jack 2 is mounted on the base 1 by bolts.

[0026] A saddle 3 is installed on the lifting sleeve of the jack 2 through threaded cooperation, and the minimum height of the jack 2 can be adjusted by rotating the saddle 3.

[0027] The inner bend of the L-shaped bent shaft is provided with a flat groove 8 matched with the shaft sleeve 10. If the position of the steel frame 9 is unstable, the flat groove 8 is pressed against the shaft sleeve 10 by turning the knob to increase the friction force, thereby making the position of the steel frame 9 more stable.

[0028] When in use, select a suitable steel frame 9 according to the specifications of the workpiece, place the shaft sleeve 10 of the steel frame 9 at the L-shaped bent shaft, turn the knob to insert the L-shaped bent shaft into the shaft sleeve 10 of the steel frame 9 to complete the articulation of the steel frame 9; when disassembling the workpiece, put the two steel frames 9 on the workpiece, and place the saddle 3 of the jack 2 against the shaft body where the workpiece is located. As the pressure rod of the jack 2 is continuously pressed down, the lifting sleeve of the jack 2 extends, and the steel frame 9 can pull the workpiece to slowly separate from the shaft body.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. An interference fit workpiece disassembly tool, comprising a base (1), a jack (2) and a steel frame (9), characterized in that: The jack (2) is mounted on a base (1); two ends of the base (1) are provided with a slide groove (4), two sliders (5) are symmetrically arranged in the slide groove (4), a positive and negative lead screw (6) is rotatably installed in the slide groove (4), a positive nut and a negative nut are installed on the positive and negative lead screw (6), and the two sliders (5) are respectively connected to the positive nut and the negative nut; an L-shaped bent shaft is arranged on the slider (5), and the L-shaped bent shafts on the two sliders (5) are symmetrically arranged, and a slot matching the L-shaped bent shaft is arranged on the side wall of the slide groove (4); a shaft sleeve (10) matching the L-shaped bent shaft is arranged at one end of the steel frame (9), and the steel frame (9) is hinged to the L-shaped bent shaft through the shaft sleeve (10), and the other end of the steel frame (9) is a workpiece clamping groove (11).

2. The interference fit workpiece removal tool according to claim 1, characterized in that: The jack (2) and the base (1) are provided with matching mounting holes, and the jack (2) is mounted on the base (1) by means of bolts.

3. The interference fit workpiece removal tool according to claim 1, characterized in that: A saddle (3) is mounted on the lifting sleeve of the jack (2) through threaded engagement.

4. The interference fit workpiece removal tool according to claim 1, characterized in that: One end of the forward and reverse lead screw (6) is connected to a knob.

5. The interference fit workpiece removal tool according to claim 1, characterized in that: The inner bend of the L-shaped bent shaft is provided with a plane groove (8) that matches the shaft sleeve (10).

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