Disassembling tool for power output gear

Abstract

The utility model provides a power output gear dismounting tool which solves the problems that when a power output gear in a new energy gearbox needs to be dismounted and inspected, due to the fact that the gear and a gear shaft are matched too tightly, an existing dismounting tool cannot effectively dismount the gear, deformation and damage of the dismounting tool are caused by too large tension, the dismounting tool cannot be used normally in the follow-up process, and the dismounting efficiency is poor. The space clearance below the power output gear is only about 3mm, so that the power output gear cannot be pried by tools such as a puller, and specifically comprises a gear clamp, a screw hole, a bolt and a gasket; the gear clamp comprises a clamp body, a clamp tail and a clamp head, the clamp tail and the clamp head are arranged at the two ends of the clamp body respectively, a screw hole is formed in the circle center of the clamp tail, and a bolt penetrates through the screw hole to abut against a gasket inside the gear clamp. The gear can be effectively disassembled under the working condition that the space gap below the gear is only about 3 mm; and the gear dismounting process is stable and controllable, and the gear can be prevented from being damaged in the dismounting process.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gearbox gear dismounting device, concretely relates to a power output gear dismounting tool. BACKGROUND

[0002] At present, when a part of power output gears inside new energy gearbox needs to be dismounted and inspected, the existing dismounting tool cannot effectively dismount the gear due to the too tight cooperation between the gear and the gear shaft, and the dismounting tool will be deformed and damaged due to too large pulling force, and cannot be normally used subsequently; and the space gap below the power output gear is only about 3mm, and cannot be pried up by a puller and other tools.

[0003] Chinese patent CN218946831U discloses a 6-ton loader gearbox direct block shaft gear dismounting tool, which comprises four bolts, a bottom plate, four reinforcing ribs and a center bolt; the bottom plate is a cross-shaped butterfly-shaped flat plate, the cross center of which is provided with a through hole for mounting the center bolt, and each corner of the bottom plate is provided with a bolt hole for cooperating with the bolt; the bottom plate, the reinforcing rib and the center bolt are fixed as a whole by welding. However, the structure of the gear dismounting tool is complex, occupies a large space, and in principle is only suitable for dismounting the direct block shaft gear of the 6-ton loader gearbox, and is not suitable for dismounting the power output gear inside the new energy gearbox. SUMMARY

[0004] The utility model aims at solving the technical problems that when the power output gear inside the new energy gearbox needs to be dismounted and inspected, the existing dismounting tool cannot effectively dismount the gear due to the too tight cooperation between the gear and the gear shaft, and the dismounting tool will be deformed and damaged due to too large pulling force, and cannot be normally used subsequently, and the space gap below the power output gear is only about 3mm, and cannot be pried up by a puller and other tools, and provides a power output gear dismounting tool.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A power output gear dismounting tool, characterized in that it comprises a gear clamp, a screw hole, a bolt and a gasket.

[0007] The gear clamp comprises a clamp body, a clamp tail and a clamp head arranged at two ends of the clamp body respectively; the clamp body is a U-shaped plate body structure, the U-shaped plate body structure extends to two ends along a U-shaped bottom plate and two side plates, the U-shaped bottom plate of the U-shaped plate body structure and a connecting part of the U-shaped bottom plate and the two side plates form a semicircular plate structure with a semicircular cross section, and the two side plates extend away from the U-shaped bottom plate along a tangent direction of the semicircular plate structure; the clamp tail is a tail flat plate arranged at one end of the U-shaped plate body structure, a threaded hole is arranged at a center of the semicircle of the tail flat plate and communicates with the inside of the gear clamp; the clamp head is a U-shaped plate connected to the other end of the U-shaped plate body structure, and the U-shaped plate extends inward in the width direction and is connected to the other end of the U-shaped plate body structure on the outside.

[0008] The bolt is threadedly connected to the tail of the clamp tail through the threaded hole.

[0009] The gasket is arranged on the upper surface of the spline shaft of the gear to be disassembled and abuts against the tail of the bolt to protect the spline shaft from being damaged by the bolt.

[0010] Further, a cylindrical boss is arranged at the center of the semicircle of the tail flat plate on the outside, and the threaded hole is arranged in the cylindrical boss, so that the stability of the bolt during tightening can be improved.

[0011] Further, the outer contour of the tail flat plate corresponds to the outer contour of one end of the U-shaped plate body structure, the upper side is flat, and the outer side wall is flush with the outer side wall of the U-shaped plate body structure.

[0012] Further, the gasket is circular, the diameter of the gasket is smaller than the diameter of the spline shaft matched with the gear to be disassembled and larger than the diameter of the bolt, a groove adapted to the tail of the bolt is arranged at the center of one side of the gasket, the tail of the bolt abuts against the groove when the gear is disassembled, and the stability of the bolt during tightening can be further improved.

[0013] Further, the thickness of the U-shaped plate is 1-3 mm, and the width satisfies the following condition: the inner edge abuts against the outer edge of the circular boss on the outside of the gear to be disassembled when the gear is disassembled.

[0014] The inner diameter of the semicircular plate structure is adapted to the diameter of the gear to be disassembled, and the gear to be disassembled is attached to the inner wall of the clamp body when the gear is disassembled.

[0015] Further, the gear clamp is an integral casting.

[0016] The gear clamp has the following advantages:

[0017] 1. This utility model provides a power output gear disassembly fixture, which can effectively disassemble the gear in narrow working conditions with a space gap of 1-3 mm under the gear.

[0018] 2. Compared with existing disassembly fixtures, the contact area between the chuck and the gear in this utility model power output gear disassembly fixture is larger, which can ensure the stability of the gear disassembly process, make the gear bear force evenly, and avoid damage to the gear during disassembly.

[0019] 3. When using the power output gear disassembly fixture of this utility model, the operator can directly observe the fit between the chuck and the gear and the disassembly process of the gear, ensuring that the disassembly process is stable and controllable. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an embodiment of a power output gear disassembly fixture according to the present invention;

[0021] Figure 2 This is a schematic diagram illustrating the disassembly of gears using an embodiment of this utility model;

[0022] Figure 3 yes Figure 2 The right view;

[0023] Figure 4 yes Figure 2 A bottom view.

[0024] Icon labels:

[0025] 1-Gear clamp, 11-Clamp body, 12-Clamp tail, 13-Clamp head, 2-Screw hole, 3-Bolt, 4-Washer, 5-Cylindrical boss. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] This utility model provides a tooling for disassembling a power output gear, such as... Figures 1-4 As shown, the power output gear disassembly fixture includes a gear clamp 1, a screw hole 2, a bolt 3, and a washer 4;

[0028] The gear clamp 1 is an integral casting, comprising a clamp body 11 and a clamp tail 12 and a clamp head 13 arranged at both ends of the clamp body respectively; the clamp body 11 is a U-shaped plate body structure, the U-shaped plate body structure extends to both ends along the U-shaped bottom plate and two side plates, the U-shaped bottom plate of the U-shaped plate body structure and the connecting part of the U-shaped bottom plate and the two side plates form a semicircular plate structure with a semicircular cross section, the inner diameter of the semicircular plate structure is matched with the diameter of the gear to be disassembled, so that the gear to be disassembled can be attached to the inner wall of the clamp body 11, and the side of the two side plates away from the U-shaped bottom plate extends along the tangent direction of the semicircular plate structure; the clamp tail 12 is a tail flat plate arranged at one end of the U-shaped plate body structure, a screw hole 2 is arranged at the center of the semicircle on the upper surface of the tail flat plate, and the screw hole 2 is in communication with the inside of the gear clamp 1; the clamp head 13 is a U-shaped plate connected to the other end of the U-shaped plate body structure, the thickness of the U-shaped plate is 2 mm, the U-shaped plate extends inward in the width direction, and the outer side of the U-shaped plate is connected to the other end of the U-shaped plate body structure, and the width is equal to the rim width of the gear to be disassembled;

[0029] A cylindrical boss 5 is arranged at the center of the semicircle on the upper surface of the clamp tail 12, the screw hole 2 is arranged in the cylindrical boss 5, and the bolt 3 passes through the cylindrical boss 5; the length of the cylindrical boss 5 is less than the length of the bolt 3, so that the stability of the bolt 3 when being screwed into the inside of the gear clamp 1 can be increased.

[0030] The gasket 4 is circular, the diameter of the gasket 4 is less than the diameter of the spline shaft matched with the gear to be disassembled, and greater than the diameter of the bolt 3, a groove adapted to the tail of the bolt 3 is arranged at the center of the upper surface of the gasket 4, the tail of the bolt 3 abuts against the groove when the gear is disassembled, and the groove can increase the stability of the bolt 3 when being screwed into the inside of the gear clamp 1. The gasket 4 is placed on the upper surface of the spline shaft matched with the gear to be disassembled, and is located in the inside of the gear clamp 1, so that the gear is disassembled and the surface of the spline shaft is protected from being damaged by the bolt 3.

[0031] In use, the clamp head 13 is stably placed under the gear to be disassembled, the gear to be disassembled is attached to the inner wall of the clamp body 11, then the gasket 4 is placed on the upper surface of the spline shaft matched with the gear to be disassembled, the bolt 3 is screwed into the cylindrical boss 5 until the recess of the gasket 4 is abutted, the bolt 3 is further tightened by using a pneumatic wrench, the clamp head 13 forms an upward pulling force on the gear to be disassembled, and finally the gear to be disassembled is separated from the matched spline shaft under the condition that the bolt 3 is continuously tightened, so that the gear is disassembled.

Claims

1. A power output gear dismounting tool characterized by, It comprises: a gear clamp (1), a screw hole (2), a bolt (3), and a gasket (4); the gear clamp (1) comprises a clamp body (11) and a clamp tail (12) and a clamp head (13) arranged at both ends of the clamp body respectively; the clamp body (11) is a U-shaped plate-like body structure, the U-shaped plate-like body structure extends to both ends along the U-shaped bottom plate and the two side plates, the U-shaped bottom plate of the U-shaped plate-like body structure and the connecting part of the U-shaped bottom plate and the two side plates form a semicircular plate-like structure with a semicircular cross section, and the two side plates extend away from the U-shaped bottom plate on the side along the tangent direction of the semicircular plate-like structure; the clamp tail (12) is a tail flat plate arranged at one end of the U-shaped plate-like body structure, a screw hole (2) is arranged at the center of the semicircle on the tail flat plate, and the screw hole (2) is in communication with the inside of the gear clamp (1); the clamp head (13) is a U-shaped plate connected to the other end of the U-shaped plate-like body structure, and the U-shaped plate extends inward in the width direction, and the outer side is connected to the other end of the U-shaped plate-like body structure; the bolt (3) is threadedly connected with the clamp tail (12) through the screw hole (2); the gasket (4) is used to be placed on the upper surface of the spline shaft of the gear to be disassembled when the power output gear is disassembled, and abuts against the tail of the bolt (3).

2. The power output gear disassembly tool according to claim 1, wherein: a cylindrical boss (5) is arranged at the center of the semicircle on the outer side of the tail flat plate, and the screw hole (2) is arranged in the cylindrical boss (5).

3. The power output gear disassembly tool according to claim 2, wherein: the outer contour of the tail flat plate corresponds to the outer contour of one end of the U-shaped plate-like body structure, the upper side is flat, and the outer side wall is flush with the outer side wall of the U-shaped plate-like body structure.

4. The power output gear disassembly tool according to claim 1, wherein: the gasket (4) is circular, the diameter is smaller than the diameter of the spline shaft matched with the gear to be disassembled, and larger than the diameter of the bolt (3); a groove adapted to the tail of the bolt (3) is arranged at the center of one side of the gasket (4), so that the tail of the bolt (3) abuts against the groove when the power output gear is disassembled.

5. The power output gear disassembly tool according to any one of claims 1-4, wherein: the thickness of the U-shaped plate is 1-3 mm, and the width meets the following condition: the inner edge abuts against the outer edge of the circular boss on the outer side of the gear to be disassembled when the power output gear is disassembled; the inner diameter of the semicircular plate-like structure is adapted to the diameter of the gear to be disassembled.

6. The power output gear disassembly tool according to claim 5, wherein: the gear clamp (1) is an integral casting.

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