A dismantling device for bore bearings

Abstract

The invention discloses a dismantling device for a bearing in a hole. An inner cylinder is threadedly connected inside an outer cylinder, a plurality of second handles are arranged on the upper part of the inner cylinder, a ejector rod is threadedly connected to the middle part of the inner cylinder, and a cone The upper end of the ejector rod is provided with a first handle; the lower part of the inner cylinder is provided with at least two installation grooves, the installation grooves are movably connected with a card arm, one end of the card arm is provided with a first hook, and the outer cylinder is provided with at least two sets of sprockets , the sprocket is installed on the outer wall of the outer cylinder through the fixed shaft, the sprocket is provided with a chain, and the lower end of the chain is provided with a second hook. When the present invention dismantles the bearing in the hole, the second hook is stuck on the bearing seat or other fixed structure first, then the locking arm is inserted into the inner ring of the bearing, the first handle is turned, and the first locking arm at the lower end of the locking arm is clamped by using the tapered head. The hook stretches and hooks the lower end surface of the bearing, and then turns the second handle to raise the inner cylinder and drive the locking arm to move upward, thereby removing the bearing in the hole, ensuring the stability of the bearing removal in the hole and avoiding damage to the bearing.

Description

technical field [0001] The invention belongs to the technical field of bearing dismounting tooling, in particular to a dismounting device for bearings in bores. Background technique [0002] With the continuous development of science and technology, bearings are an indispensable and important part of major machinery. The replacement of bearings has always been a headache for major factories, and some even replace large machinery because of a small bearing. A bad demolition will have a huge impact on the future operation of the machine. [0003] At present, the commonly used method is generally to disassemble it by adopting the method of impact. This method has low work efficiency, high labor intensity, poor safety, and is easy to damage the bearing, resulting in increased disassembly cost. [0004] The Chinese utility model patent with the application number of 201320180666.0 discloses an inner bearing pull code, which includes a pull rod (1), and one end of the pull rod (1...

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of science and technology, bearings are an indispensable and important part of major machinery. The replacement of bearings has always been a headache for major factories, and some even replace large machinery because of a small bearing. A bad demolition will have a huge impact on the future operation of the machine

[0003] At present, the commonly used method is to disassemble it by impact. This method has low work efficiency, high labor intensity, poor safety, and is easy to damage the bearing, resulting in increased disassembly costs.

[0004] The Chinese utility model patent with the application number of 201320180666.0 discloses an inner bearing pull code, which includes a pull rod (1), and one end of the pull rod (1) is provided with a mounting head (3) for installing the pull code foot (2), and the other end A handle (4) is provided, and the pull rod (1) is provided with a slide hammer (5) that can slide axially on the pull rod (1), characterized in that the installation head (3) is detachable It is connected with the said pull code foot (2), and the described pull code foot (2) is provided with an expansion and contraction structure (6) that can radially expand or contract when the pull rod (1) rotates, and the described handle ( 4) A booster structure (7) is provided on it; when in use, the claw 62 is inserted into the bearing, and the claw 62 is fixed through the concave platform 611, and then the push rod 23 is inserted into the cylindrical body and the connecting screw 22 and the The cylindrical bodies are connected, the connecting bolt 21 is installed on the installation head 3, the claw 62 is gradually opened by the power-assisted rod 71 to rotate the pull rod 1 to fix the bearing, and the bearing is pulled out by hitting the handle 4 with the slide hammer 5; however, the bearing is disassembled It mainly depends on the friction force between the claw and the inner ring of the bearing when it is tightened. Since the claw has the function of opening and contracting, it is easy to separate and fall off the inner ring of the bearing after being impacted by the pull rod, thus affecting the disassembly operation of the bearing. , the impact force generated by the sliding hammer at the moment of impact is relatively large, which is easy to cause damage to the bearing, especially the large force on the inner ring of the bearing, causing the inner ring of the bearing to separate from the outer ring of the bearing, thus damaging the bearing

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