Special tool for disassembling brake drum of automobile

Abstract

The special tool for disassembling the brake drum of the automobile aims at solving the problems existing when the brake drum of the automobile is disassembled in the prior art. The special tool comprises a fixing unit, a steel plate drag hook and a pin shaft, the fixing unit comprises a circular ring, a jack bracket, a connecting rod, a front top plate and a rear top plate; the circular ring is fixedly connected with the rear top plate through a plurality of connecting rods, the rear top plate is fixedly connected with the jack bracket and is perpendicular to the jack bracket, the front top plate is connected with the connecting rods and is arranged between the circular ring and the rear top plate, and a pin shaft sleeve is arranged on the circular ring; the number of the steel plate drag hooks is two, drag hooks are arranged at the two ends of each steel plate drag hook, a pin shaft hole is formed in the drag hook at one end, and the end, provided with the pin shaft hole, of each steel plate drag hook is connected with the circular ring of the fixing unit through a pin shaft. After the tool is used, a maintainer does not need to hit by a sledge hammer, so that the labor intensity is reduced, the limited space is avoided, the operation safety is improved, and the maintenance quality and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile maintenance equipment, and particularly relates to a special tool for disassembling a brake drum of an automobile. BACKGROUND

[0002] When the brake shoes in the brake drum of a large mine truck are replaced, the return spring wheel assembly needs to be removed, and then the tire screws, bearings, oil seals and brake drum need to be disassembled. However, the brake drum is fastened to the brake back plate and is not easy to disassemble. The maintenance personnel need to use a sledgehammer to knock it loose. The disadvantages of such operation are: easy to damage the brake system components, high labor intensity, limited maintenance space, and unsafe operation. Therefore, it is necessary to make a special tool for disassembling the brake drum to avoid the existing problems. SUMMARY

[0003] The utility model discloses to the problem existing when disassembling the brake drum of the automobile, provide a special tool for disassembling the brake drum of the automobile. After using the tool of the utility model, the maintenance personnel do not need to knock with a sledgehammer, reduce the labor intensity, avoid the limited space, improve the operation safety, improve the maintenance quality efficiency.

[0004] A special tool for disassembling the brake drum of the automobile, including fixed unit, steel plate draw hook and pin shaft,

[0005] The fixed unit includes a circular ring, a jack bracket, a connecting rod, a front top plate and a rear top plate. The circular ring and the rear top plate are fixedly connected by a plurality of connecting rods. The rear top plate is fixedly connected with the jack bracket and the two are vertically arranged. The front top plate is connected with the connecting rod and is arranged between the circular ring and the rear top plate. A pin shaft sleeve is arranged on the circular ring.

[0006] The steel plate draw hook is two. The two ends of the steel plate draw hook are provided with draw hooks, and a pin hole is arranged on the draw hook at one end. The end of the steel plate draw hook provided with the pin hole is connected with the circular ring of the fixed unit through the pin shaft.

[0007] Further, the special tool for disassembling the brake drum of the automobile, a through hole corresponding to the bolt on the outer surface of the brake drum is arranged on the circular ring.

[0008] Further, the special tool for disassembling the brake drum of the automobile, the front top plate is connected with the plurality of connecting rods through the connecting sleeve rod and slides between the circular ring and the rear top plate.

[0009] Compared with the prior art, the utility model has the advantages that:

[0010] The special tool has a simple structure, is convenient to use, reduces the labor intensity of the maintenance personnel, improves the work efficiency, and reduces the damage to the brake system components. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The utility model tool structure schematic diagram.

[0012] Figure 2 The fixed unit's three-dimensional structure schematic diagram.

[0013] Figure 3 The steel plate draw hook's structure schematic diagram.

[0014] 1, steel plate draw hook, 2, pin shaft, 3, circular ring, 4, jack bracket, 5, connecting rod, 6, front top plate, 7, rear top plate, 8, pin shaft sleeve, 9, brake drum, 10, axle, 11, jack, 21, pin shaft hole, 31, through hole, 61, connecting sleeve rod. DETAILED DESCRIPTION

[0015] EMBODIMENT

[0016] A kind of special tool for automobile disassembly brake drum, including, steel plate draw hook 1 and pin shaft 2;

[0017] The fixed unit includes circular ring 3, jack bracket 4, connecting rod 5, front top plate 6 and rear top plate 7;The circular ring and rear top plate are fixedly connected by several connecting rods, the rear top plate is fixedly connected with jack bracket and both are vertically arranged, the front top plate is connected with several connecting rods by connecting sleeve rod 61, and slides between circular ring and rear top plate, the circular ring is equipped with pin shaft sleeve 8 and through hole 31 corresponding with brake drum outer surface bolt;

[0018] The steel plate draw hook is 2, the both ends of the steel plate draw hook are equipped with draw hook, and the draw hook on one end is equipped with pin shaft hole 21, and the steel plate draw hook is equipped with pin shaft hole one end and is connected with the circular ring of fixed unit by pin shaft.

[0019] The use method of the tool in the field is as follows:

[0020] The through hole of the circular ring of the fixed unit is passed into the brake drum 9 outer surface bolt, and is tightened with nut. Again, two steel plate draw hooks are placed on the both sides of brake drum, and the draw hook is hung in brake drum edge groove and circular ring respectively, then the steel plate draw hook and circular ring are fixed together with pin shaft. The jack 11 is placed on the jack bracket, and the base of the jack is placed on the rear top plate, and the jack is lifted to push the front top plate to the axle 10, and after the front top plate is close to the axle, the nut on the brake drum outer surface bolt is removed, then the jack is continued to be lifted, and the brake drum can be disassembled under the action of the steel plate draw hook.

Claims

1. A special tool for disassembling brake drums of automobiles, characterized in that: Including fixing unit, steel plate hook and pin; The fixing unit includes a circular ring, a jack bracket, a connecting rod, a front top plate and a rear top plate; the circular ring and the rear top plate are fixedly connected by a plurality of connecting rods, the rear top plate is fixedly connected to the jack bracket and the two are vertically arranged, the front top plate is connected to the connecting rod and is arranged between the circular ring and the rear top plate, and the circular ring is provided with a pin sleeve; There are two steel plate hooks, both ends of which are provided with hooks, and a pin hole is provided on the hook at one end. The end of the steel plate hook provided with the pin hole is connected to the circular ring of the fixing unit through a pin.

2. The special tool for disassembling brake drums of automobiles according to claim 1, characterized in that: The circular ring is provided with through holes corresponding to the bolts on the outer surface of the brake drum.

3. The special tool for disassembling brake drums of automobiles according to claim 1, characterized in that: The front top plate is connected to a plurality of connecting rods through a connecting sleeve rod and slides between the circular ring and the rear top plate.

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