Gapless sleeve withdrawing tool

Abstract

The utility model relates to the technical field of sleeve withdrawing tools, in particular to a gapless sleeve withdrawing tool, which comprises a main body and a sleeve withdrawing device, the extrusion mechanism comprises a screw rod, the screw rod is connected to the surface of the rotating handle, a connecting groove is formed in the surface of the screw rod, a nut is movably connected to the surface of the screw rod, an expansion core sleeve is fixedly connected to one end of the nut, an extrusion fixing block is arranged on the surface of the expansion core sleeve, and an extrusion fixing groove is formed in the surface of the expansion core sleeve. A limiting ring is fixedly connected to the surface of the expansion core sleeve, a drawing groove is formed in one end of the limiting ring, and a bearing composite bush is movably connected to the surface of the expansion core sleeve. Under the action of the connecting groove and the rotating handle, the effect of conveniently rotating the screw in a labor-saving mode is achieved, under the action of the nut, the effect of downwards extending the screw is achieved, and under the action of the nut, the effect of fixing the expansion core sleeve and the nut is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sleeve withdrawal tools, in particular to a gapless sleeve withdrawal tool. Background Art

[0002] Various composite metal bushings that fit seamlessly have equal inner diameters at both ends of the bearing bushings after being assembled. Existing sleeve removal tools cannot disassemble the bushings intact, causing damage to the bearing bushings and resulting in waste. Utility Model Content

[0003] The utility model aims to provide a gapless sleeve removal tool to solve the problem that the existing sleeve removal tool proposed in the above background technology cannot completely disassemble the sleeve, causing damage to the bearing sleeve and causing waste.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution, a gapless sleeve removal tool, comprising:

[0005] a main body, including a rotating handle;

[0006] The extrusion mechanism includes a screw rod, which is connected to the surface of a rotating handle, a connecting groove is provided on the surface of the screw rod, a nut is movably connected to the surface of the screw rod, one end of the nut is fixedly connected to a core expansion sleeve, an extrusion fixing block is provided on the surface of the core expansion sleeve, an extrusion fixing groove is provided on the surface of the core expansion sleeve, a limiting ring is fixedly connected to the surface of the core expansion sleeve, one end of the limiting ring is provided with a drawing groove, the surface of the core expansion sleeve is movably connected to a bearing composite bushing, and the surface of the bearing composite bushing is clamped and connected to a shaft tube.

[0007] Preferably, the screw is cylindrical and acts on the surface of the rotating handle. The surface of the screw is provided with threads. The end of the screw away from the rotating handle is conical. The connecting groove is a circular block and acts on the surface of the screw. The screw is engaged and connected with the rotating handle through the connecting groove.

[0008] Preferably, the core expansion sleeve is in the shape of a circular block and acts on one end of the nut, the extrusion fixing groove is in the shape of a circular block and acts on the surface of the core expansion sleeve, and the limiting ring is in the shape of an annular sheet and acts on the surface of the core expansion sleeve.

[0009] Preferably, the drawing groove is in the shape of a circular block acting on one end of the limiting ring, the drawing groove is in two groups, the bearing composite bushing is in the shape of a circular sheet acting on the surface of the core expansion sleeve, and the shaft tube is in the shape of a hollow cylinder acting on the surface of the bearing composite bushing.

[0010] Preferably, the auxiliary mechanism comprises a limiting bolt, the limiting bolt is movably connected to the surface of the extrusion fixing groove, and the screw rod is fixedly connected to the core expansion sleeve via the limiting bolt.

[0011] Preferably, the surface of the drawing groove is movably connected with drawing bolts, and the drawing bolts are in two groups.

[0012] Preferably, the limiting bolt is fixedly connected to the core expansion sleeve via an extrusion fixing groove, and the pulling bolt is fixedly connected to the limiting ring via a pulling groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Through the action of the connecting groove and the rotating handle of the screw, the screw can be rotated conveniently and labor-savingly. Through the action of the nut, the screw can be extended downward. Through the action of the core expansion sleeve and the nut, the core expansion sleeve and the nut can be fixed. Through the action of the limiting ring and the core expansion sleeve, the limiting ring can be fixed to limit the core expansion sleeve and the screw. Through the action of the core expansion sleeve, the extrusion fixing block and the screw, the bearing composite bushing can be squeezed and fixed by the core expansion sleeve, so that the bearing composite bushing can be removed.

[0015] 2. The screw rod is squeezed and fixed by the limiting bolt in the extrusion fixing groove, and the bearing composite bushing is squeezed out by the pulling groove and the pulling bolt. The core expansion sleeve is prevented from being in contact with the bearing composite bushing by the limiting bolt, so as to stably remove the bearing composite bushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top-down perspective schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a three-dimensional exploded view of the structure of the utility model;

[0018] Figure 3 It is a schematic top view of the structure of the core expansion sleeve of the utility model;

[0019] Figure 4 This is a bottom view schematic diagram of the structure of the core expansion sleeve of the utility model;

[0020] Figure 5 It is a schematic side view of the structure of the rotating handle and the screw rod of the utility model;

[0021] Figure 6 It is a schematic structural side view of the composite bushing and shaft tube of the bearing of the utility model.

[0022] In the figure: 1. rotating handle; 2. screw; 21. connecting groove; 3. nut; 4. core expansion sleeve; 41. extrusion fixing block; 42. extrusion fixing groove; 5. limiting ring; 51. drawing groove; 6. bearing composite bushing; 7. shaft tube; 8. limiting bolt; 9. drawing bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 , an embodiment provided by the utility model:

[0025] A gapless sleeve removal tool, comprising:

[0026] The main body comprises a rotating handle 1;

[0027] The extrusion mechanism includes a screw rod 2, which is connected to the surface of a rotating handle 1. A connecting groove 21 is provided on the surface of the screw rod 2. A nut 3 is movably connected to the surface of the screw rod 2. One end of the nut 3 is fixedly connected to a core expansion sleeve 4. An extrusion fixing block 41 is provided on the surface of the core expansion sleeve 4. An extrusion fixing groove 42 is provided on the surface of the core expansion sleeve 4. A limiting ring 5 is fixedly connected to the surface of the core expansion sleeve 4. A drawing groove 51 is provided at one end of the limiting ring 5. A bearing composite bushing 6 is movably connected to the surface of the core expansion sleeve 4. The surface of the bearing composite bushing 6 is clamped and connected to a shaft tube 7.

[0028] Furthermore, the screw 2 is cylindrical and acts on the surface of the rotating handle 1. A thread is provided on the surface of the screw 2. The end of the screw 2 away from the rotating handle 1 is conical in shape. The connecting groove 21 is a circular block and acts on the surface of the screw 2. The screw 2 is engaged and connected with the rotating handle 1 through the connecting groove 21. Under the action of the connecting groove 21 and the rotating handle 1, the screw 2 can be rotated conveniently and labor-savingly.

[0029] Furthermore, the core expansion sleeve 4 is in the shape of a circular block and acts on one end of the nut 3, the extrusion fixing groove 42 is in the shape of a circular block and acts on the surface of the core expansion sleeve 4, and the limiting ring 5 is in the shape of an annular sheet and acts on the surface of the core expansion sleeve 4. Through the action of the screw 2 under the action of the nut 3, the screw 2 can extend downward, and through the action of the core expansion sleeve 4 under the action of the nut 3, the core expansion sleeve 4 and the nut 3 can be fixed, and through the action of the limiting ring 5 under the action of the core expansion sleeve 4, the limiting ring 5 can be fixed.

[0030] Furthermore, the drawing groove 51 is in the shape of a circular block and acts on one end of the limit ring 5. The drawing groove 51 is in two groups. The bearing composite bushing 6 is in the shape of a circular sheet and acts on the surface of the core expansion sleeve 4. The shaft tube 7 is in the shape of a hollow cylinder and acts on the surface of the bearing composite bushing 6. Through the action of the core expansion sleeve 4, the extrusion fixing block 41 and the screw 2, the core expansion sleeve 4 extrude and fix the bearing composite bushing 6.

[0031] Furthermore, an auxiliary mechanism includes a limiting bolt 8, which is movably connected to the surface of the extrusion fixing groove 42. The screw 2 is fixedly connected to the core expansion sleeve 4 through the limiting bolt 8. Under the action of the extrusion fixing groove 42, the screw 2 is squeezed and fixed.

[0032] Furthermore, the surface of the drawing groove 51 is movably connected with drawing bolts 9 , and the drawing bolts 9 are in two groups. The drawing groove 51 and the drawing bolts 9 can be used to squeeze out the bearing composite bushing 6 .

[0033] Furthermore, the limiting bolt 8 is fixedly connected to the core expansion sleeve 4 through the extrusion fixing groove 42, and the pulling bolt 9 is fixedly connected to the limiting ring 5 through the pulling groove 51. Under the action of the limiting bolt 8, the extrusion relationship contact between the core expansion sleeve 4 and the bearing composite bushing 6 is prevented.

[0034] Working principle: When lifting the bearing composite bushing 6, insert the rotating handle 1 into the screw 2 through the connecting groove 21, and place the core expansion sleeve 4 on the inner side of the bearing composite bushing 6 until the limiting ring 5 is against the shaft tube 7. Rotate the screw 2 by rotating the handle 1 and the nut 3. The conical tip at one end of the screw 2 pushes the extrusion fixing block 41 of the core expansion sleeve 4 outward to squeeze the bearing composite bushing 6. Then rotate the limiting bolt 8 through the extrusion fixing groove 42 to fix the screw 2. Then rotate it through the pulling groove 51 to press against the shaft tube 7 to lift the bearing composite bushing 6.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A gapless sleeve removal tool, characterized in that: include: A main body, comprising a rotating handle (1); The extrusion mechanism comprises a screw (2), wherein the screw (2) is connected to the surface of a rotating handle (1), the surface of the screw (2) is provided with a connecting groove (21), the surface of the screw (2) is movably connected with a nut (3), one end of the nut (3) is fixedly connected with a core expansion sleeve (4), the surface of the core expansion sleeve (4) is provided with an extrusion fixing block (41), the surface of the core expansion sleeve (4) is provided with an extrusion fixing groove (42), the surface of the core expansion sleeve (4) is fixedly connected with a limiting ring (5), one end of the limiting ring (5) is provided with a drawing groove (51), the surface of the core expansion sleeve (4) is movably connected with a bearing composite bushing (6), and the surface of the bearing composite bushing (6) is snap-connected with a shaft tube (7).

2. A gapless sleeve removal tool according to claim 1, characterized in that: The screw rod (2) is cylindrical and acts on the surface of the rotating handle (1). The surface of the screw rod (2) is provided with threads. The end of the screw rod (2) away from the rotating handle (1) is conical. The connecting groove (21) is circular and acts on the surface of the screw rod (2). The screw rod (2) is connected to the rotating handle (1) by snapping through the connecting groove (21).

3. A gapless sleeve removal tool according to claim 1, characterized in that: The core expansion sleeve (4) is in the shape of a circular block and acts on one end of the nut (3); the extrusion fixing groove (42) is in the shape of a circular block and acts on the surface of the core expansion sleeve (4); and the limiting ring (5) is in the shape of an annular sheet and acts on the surface of the core expansion sleeve (4).

4. A gapless sleeve removal tool according to claim 1, characterized in that: The drawing groove (51) is in the shape of a circular block and acts on one end of the limiting ring (5). The drawing groove (51) is in two groups. The bearing composite bushing (6) is in the shape of a circular sheet and acts on the surface of the core expansion sleeve (4). The shaft tube (7) is in the shape of a hollow cylinder and acts on the surface of the bearing composite bushing (6).

5. A gapless sleeve removal tool according to claim 1, characterized in that: The auxiliary mechanism comprises a limiting bolt (8), wherein the limiting bolt (8) is movably connected to the surface of the extrusion fixing groove (42), and the screw rod (2) is fixedly connected to the core expansion sleeve (4) via the limiting bolt (8).

6. A gapless sleeve removal tool according to claim 5, characterized in that: The surface of the drawing groove (51) is movably connected with a drawing bolt (9), and the drawing bolt (9) is in two groups.

7. A gapless sleeve removal tool according to claim 6, characterized in that: The limiting bolt (8) is fixedly connected to the core expansion sleeve (4) via an extrusion fixing groove (42), and the drawing bolt (9) is fixedly connected to the limiting ring (5) via a drawing groove (51).

Images