Rotation stopping gasket bending device and bending method

A technology of anti-rotation gasket and bending device, which is applied in the field of bolt anti-loosening, can solve the problems of excessive hammering force, high number of hammering times, high skill requirements for operators, and damage to bolt pre-tightening force. Reasonable structure setting and good anti-loosening effect

Pending Publication Date: 2022-04-29
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At this stage, some bolts of the EMU bogie are usually anti-loosening with anti-rotation washers. In order to ensure the anti-loosening effect, the anti-rotation washers are generally made of steel plates with a thickness of 1.6mm. When bending the anti-rotation washers, use The chisel and the hand hammer are used for manual work. Although this kind of work can be used to bend the gasket, it is time-consuming and labor-intensive;
[0004] The inventor found that after the anti-rotation gasket is bent, it is necessary to adopt a hammering method to make the gasket stick to the head of the bolt. The hammering force and the number of times of hammering are different. Excessive hammering force and too many times of hammering may damage the pre-tightening force of the bolt.

Method used

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  • Rotation stopping gasket bending device and bending method
  • Rotation stopping gasket bending device and bending method
  • Rotation stopping gasket bending device and bending method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] In a typical embodiment of the present invention, refer to Figure 1-Figure 4 As shown, a anti-rotation gasket bending device includes a support frame 1, the support frame is L-shaped, and includes a vertical section and a horizontal section, the vertical section of the support frame 1 supports the fixing part 2, and the horizontal section of the support frame 1 The moving part 3 is supported, the moving part is movable relative to the fixed part 2, and there is a set space between the moving part 3 and the fixed part 2 so that the bolt head and the anti-rotation washer enter;

[0052] The L-shaped setting of the support frame facilitates the support of the fixed part, and the horizontal section of the support frame supports the moving part, thereby ensuring the setting height of the stopper and the fixation part, and ensuring the bending of the stopper to the anti-rotation gasket.

[0053] Such as figure 2 As shown, the upper part of the moving part 3 is supported by...

Embodiment 2

[0069] This embodiment provides a bending method of the anti-rotation gasket, including the following content:

[0070] First, use the hand pump pliers to bend the anti-rotation gasket once, and the bending angle is 35-45°. The purpose of the first bending is to facilitate the bending and put the anti-rotation gasket into the bending device for secondary bending;

[0071] Put the anti-rotation washer after one bending on the bolt shaft, and the bending side of the anti-rotation washer faces the head of the bolt;

[0072] The head of the bolt faces the direction of the support frame 1, pass the head of the bolt and the anti-rotation washer through the space between the fixed part 2 and the moving part 3, and support the head of the bolt through the groove on the support frame 1 to stop the rotation The gasket is in contact with the slope of the block 4;

[0073] Control the horizontal moving mechanism to realize that the moving part 3 drives the stopper 4 to move towards the f...

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PUM

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Abstract

The invention discloses a rotation stopping gasket bending device and a bending method, solves the problem that the risk of damaging the pre-tightening force of a bolt exists due to excessive hammering force and excessive hammering times in the prior art, and has the beneficial effects that the rotation stopping gasket can be bent at a relatively high speed, and the looseness prevention of the rotation stopping gasket is ensured. According to the specific scheme, the anti-rotation gasket bending device comprises a supporting frame, the supporting frame is provided with a fixed part and a movable part, the movable part can move relative to the fixed part, a set space is formed between the movable part and the fixed part so that the head of a bolt and an anti-rotation gasket can enter, and the movable part can rotatably support a check block; one side of the peripheral side of the stop block is an inclined face to be matched with the fixing piece to bend the gasket, at least one side of the peripheral side of the stop block is a vertical face so that the vertical face can be attached to the head of the bolt, and a bending groove is formed in the side, facing the stop block, of the fixing piece to be matched with the head of the bolt.

Description

technical field [0001] The invention relates to the technical field of anti-loosening bolts, in particular to a bending device and a bending method for an anti-rotation washer. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] At this stage, some bolts of the EMU bogie are usually anti-loosening with anti-rotation washers. In order to ensure the anti-loosening effect, the anti-rotation washers are generally made of steel plates with a thickness of 1.6mm. When bending the anti-rotation washers, use The chisel and the hand hammer are used for manual work. Although this kind of work can be used to bend the gasket, it is time-consuming and labor-intensive; [0004] The inventor found that after the anti-rotation gasket is bent, it is necessary to adopt a hammering method to make the gasket stick to the head of the bolt. The hammering force and...

Claims

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Application Information

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IPC IPC(8): B21D11/10B21D11/22
CPCB21D11/10B21D11/22
Inventor 姚凯徐文道刘子铭赵显海张起
Owner CRRC QINGDAO SIFANG CO LTD
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