Special tool for mounting shaft sleeve

Abstract

The utility model discloses a special tool for shaft sleeve installation, which comprises a first clamping block and a second clamping block arranged symmetrically with the first clamping block, the opposite sides of the first clamping block and the second clamping block are provided with V-shaped grooves, and two symmetrically arranged first screw rods are arranged between the first clamping block and the second clamping block. The two ends of the first screw are in threaded connection with first fastening nuts. According to the special tool for installing the shaft sleeve, the first clamping block and the second clamping block can be clamped on a shaft where the shaft sleeve needs to be installed, the third screw rod and the pressing cylinder are arranged, the pressing cylinder is arranged on the shaft where the shaft sleeve needs to be installed in a sleeving mode for centering before the shaft sleeve is installed, and then the top plate is fixed; the shaft sleeve is installed in a spiral embedded stress mode, impact stress caused by installation through a copper rod or a rubber hammer is avoided, the installation success rate is increased, and the device is simple in structure and convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to axle sleeve installation technical field, especially in special tool of axle sleeve installation. BACKGROUND

[0002] The existing axle sleeve installation adopts hydraulic press method or directly knocks the axle sleeve installation with copper bar or rubber hammer, and the existing two methods have certain defects, when the axle sleeve of the equipment inconvenient to disassemble is installed, the hydraulic press cannot be used, when the copper bar or rubber hammer directly knocks the axle sleeve, the force cannot be applied, the installation is laborious, the installation progress is slow, and there is safety risk, when the copper bar or rubber hammer directly knocks the axle sleeve, the axle sleeve installation is prone to deflection, the axle sleeve is often stuck, the sealing ring is sheared, the axle sleeve is damaged, and even the axle is damaged. SUMMARY

[0003] In view of the above-mentioned defects in the prior art, the utility model provides a special tool for axle sleeve installation, which aims to solve the problems that the hydraulic press cannot be used when installing the axle sleeve, the force cannot be applied when the copper bar or rubber hammer directly knocks the axle sleeve, the installation is laborious, the installation progress is slow, and there is safety risk, the axle sleeve installation is prone to deflection when the copper bar or rubber hammer directly knocks the axle sleeve, the axle sleeve is often stuck, the sealing ring is sheared, the axle sleeve is damaged, and even the axle is damaged.

[0004] In order to achieve the above-mentioned utility model purposes, the utility model adopts the following technical scheme:

[0005] A special tool for axle sleeve installation, comprising a first clamping block and a second clamping block symmetrically arranged with the first clamping block, a V-shaped groove is arranged on the opposite side of the first clamping block and the second clamping block, two first screws symmetrically arranged are arranged between the first clamping block and the second clamping block, first locking nuts are threadedly connected to the two ends of the first screw, second screws are fixedly connected to the top of the first clamping block and the second clamping block, a top plate is arranged between the top of the two second screws, a second locking nut is threadedly connected to the second screw, a third screw is threadedly connected to the top plate, and a pressing cylinder is rotatably connected to the bottom of the third screw.

[0006] Further, a rubber pad is arranged in the V-shaped groove.

[0007] Further, the first screw is movably arranged between the first clamping block and the second clamping block.

[0008] Further, two symmetrically arranged sliding grooves are formed in the top plate, and the second screw passes through the sliding groove.

[0009] Further, the two second locking nuts are respectively located on the upper and lower sides of the top plate.

[0010] Furthermore, a force-adding rod perpendicular to the third screw is slidably connected to the top of the third screw.

[0011] The beneficial effects of this utility model are as follows:

[0012] This utility model discloses a special tool for installing bushings. The first and second locking blocks can be locked onto the shaft on which the bushing needs to be installed. The third screw and pressure cylinder are used to center the pressure cylinder on the shaft before the bushing is installed. Then the top plate is fixed, and the bushing is installed by spiral embedding force, which avoids the impact force of installation with copper rods or rubber hammers, and improves the installation success rate. This device has a simple structure and is easy to use. Attached Figure Description

[0013] Fig. 1 This is a three-dimensional structural diagram of the present invention;

[0014] Fig. 2 This is a schematic diagram of the third screw and pressure cylinder structure of this utility model.

[0015] Reference table for attached figures:

[0016] 1. First locking block; 2. Second locking block; 3. V-groove; 4. First screw; 5. First fastening nut; 6. Second screw; 7. Top plate; 8. Second fastening nut; 9. Third screw; 10. Pressure cylinder; 11. Slide groove; 12. Force rod; 13. Rubber pad. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0018] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0019] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0020] like Figs. 1-2 As shown, a special tool for bushing installation includes a first locking block 1 and a second locking block 2 symmetrically arranged with respect to the first locking block 1.

[0021] A V-groove 3 is provided on the opposite side of the first locking block 1 and the second locking block 2, and a rubber pad 13 is provided inside the V-groove 3.

[0022] Two symmetrically arranged first screws 4 are provided between the first locking block 1 and the second locking block 2. Both ends of the first screws 4 are threaded with first fastening nuts 5. The first screws 4 are movably arranged between the first locking block 1 and the second locking block 2.

[0023] When installing the bushing, the first locking block 1 and the second locking block 2 are locked onto the outer side of the shaft on which the bushing needs to be installed, and the first fastening nut 5 is rotated to fix the first locking block 1 and the second locking block 2 onto the installation shaft.

[0024] Rubber pad 13 prevents the first locking block 1 and the second locking block 2 from damaging the mounting shaft.

[0025] The top of both the first locking block 1 and the second locking block 2 are fixedly connected to the second screw rod 6, and a top plate 7 is provided between the tops of the two second screw rods 6.

[0026] The second screw 6 is threaded with a second fastening nut 8, and the top plate 7 is threaded with a third screw 9. The bottom of the third screw 9 is rotatably connected to a pressure cylinder 10. The inner diameter of the pressure cylinder 10 is 0.1mm larger than the diameter of the shaft on which the bushing needs to be installed. In actual use, the inner diameter of the pressure cylinder 10 is different depending on the diameter of the shaft on which the bushing needs to be installed. This embodiment does not limit the inner diameter of the pressure cylinder 10.

[0027] Two symmetrically arranged sliding grooves 11 are provided on the top plate 7. The second screw 6 passes through the sliding grooves 11, and two second fastening nuts 8 are located on the upper and lower sides of the top plate 7 respectively.

[0028] The top of the third screw 9 is slidably connected to a force-adding rod 12 perpendicular to the third screw 9.

[0029] Before installing the bushing, loosen the second fastening nut 8, rotate the third screw 9 via the force-applying rod 12 to make the pressure cylinder 10 fit on the shaft, then tighten the second fastening nut 8 to fix the top plate 7, then raise the third screw 9 to fit the bushing onto the mounting shaft, rotate the force-applying rod 12, the force-applying rod 12 drives the third screw 9 to rotate, the third screw 9 drives the pressure cylinder 10 to move downward, and install the bushing on the mounting shaft. The bushing is installed by a spiral embedding force-bearing method, which avoids the impact force of installation using copper rods or rubber hammers, and greatly improves the installation success rate.

[0030] The above description is only a preferred embodiment of this utility model patent and is not intended to limit this utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this utility model patent should be included within the protection scope of this utility model patent.

Claims

1. A special tool for bushing installation, characterized in that, It includes a first locking block (1) and a second locking block (2) symmetrically arranged with respect to the first locking block (1). A V-groove (3) is provided on the opposite side of the first locking block (1) and the second locking block (2). Two first screws (4) are symmetrically arranged between the first locking block (1) and the second locking block (2). Both ends of the first screws (4) are threaded with first fastening nuts (5). The tops of the first locking block (1) and the second locking block (2) are fixedly connected with second screws (6). A top plate (7) is provided between the tops of the two second screws (6). A second fastening nut (8) is threaded on the second screws (6). A third screw (9) is threaded on the top plate (7). A pressure cylinder (10) is rotatably connected to the bottom of the third screw (9).

2. The special tool for bushing installation according to claim 1, characterized in that: A rubber pad (13) is provided inside the V-groove (3).

3. The special tool for bushing installation according to claim 1, characterized in that: The first screw (4) is movably positioned between the first locking block (1) and the second locking block (2).

4. The special tool for bushing installation according to claim 1, characterized in that: The top plate (7) has two symmetrically arranged sliding grooves (11), and the second screw (6) passes through the sliding grooves (11).

5. A special tool for bushing installation according to claim 1, characterized in that: The two second fastening nuts (8) are located on the upper and lower sides of the top plate (7), respectively.

6. A special tool for bushing installation according to claim 1, characterized in that: The top of the third screw (9) is slidably connected to a force-adding rod (12) perpendicular to the third screw (9).

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