Restored reinforcing wheel and restoring technique therefor

An enhanced wheel technology, applied in the direction of wheels, metal processing equipment, and wheels characterized by rail running parts, can solve problems such as large quantities, driving safety threats, and economic waste, and achieve huge value, comprehensive performance improvement, and The effect of easy operation

Inactive Publication Date: 2008-05-21
SHENYANG DALU LASER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After my country's railway transportation speeds up, due to the increase in load and operating speed, cracks are easily generated around the web hole due to local stress concentration, which brings hidden dangers to the safe operation of the locomotive. If cracks appear, it will be scrapped, which will bring huge economic waste
[0004] At the present stage, there are nearly 3 million wheels...

Method used

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  • Restored reinforcing wheel and restoring technique therefor
  • Restored reinforcing wheel and restoring technique therefor
  • Restored reinforcing wheel and restoring technique therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 Repaired Reinforced Wheel with Wedge Reinforcement

[0030] The structure of the repaired reinforced wheel with wedge-shaped reinforcement is as follows figure 1 As shown, it consists of a railway wheel 1 and a wedge-shaped reinforcement 2 . The wedge-shaped reinforcements 2 are inserted into the web holes of the railway wheel 1 . The material of the railway wheel 1 is medium carbon alloy steel, and the material of the wedge-shaped reinforcement 2 is a nickel-based alloy with a higher strength than the base material.

Embodiment 2

[0031] Example 2 Repair reinforced wheel with annular reinforcement

[0032] The structure of the repaired reinforced wheel with annular reinforcement is such as figure 2 As shown, it consists of a railway wheel 1 and an annular reinforcement 3 . The annular reinforcement 3 is inserted into the web hole of the railway wheel 1 . The material of the railway wheel 1 is medium carbon alloy steel, and the material of the annular reinforcement 3 is a nickel-based alloy higher than the base material.

[0033] The strength and toughness of the nickel-based alloy are higher than those of the medium carbon alloy steel, so the comprehensive performance of the railway wheel 1 after the repair is improved.

Embodiment 3

[0034] Example 3 Repair process for repairing reinforced wheels

[0035] ①Crack detection.

[0036] ②Crack cleaning, including beveling with a beveling machine for wheelset wheel repair,

[0037] The structure of the beveling machine for wheelset wheel repair is as follows image 3 As shown, it is composed of a bed 10, a headstock 11, a chuck 12, a center 17, a tailstock 18, a tool rest 14 and a lead screw 16. The bed 10 is equipped with a headstock 11, a tailstock 18 and a lead screw 16. , the chuck 12 is mounted on the headstock 11, the top 17 is mounted on the tailstock 18, the tool post 14 is mounted on the lead screw 16, the lead screw 16 is driven by a separate motor I 19, and the milling cutter is installed on the tool post 14 13. Driven by motor II15, there are two sets of motor I19, lead screw 16, tool post 14, milling cutter 13 and motor II15. One milling cutter 13 faces the chuck 12 and the other milling cutter 13 faces the tailstock 18.

[0038] The wheel set is...

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Abstract

The invention provides a repaired and reinforced vehicle wheel, more particularly a railway vehicle wheel. The invention is characterized in that the web holes of the railway vehicle wheel are embedded with reinforcer The repairing process of the repairing and reinforcing vehicle wheel is characterized in that the repairing process comprises crack detection, crack cleaning, laser cladding, dimensions recovering at the groove positions; groove chamfering of 5 multiplied by 45 DEG at the circumference of the holes; laser cladding at the circumference of the holes with the cladding material of the nickel-based alloy with higher strength compared with the material of the basic body; grinding of the circumference of the holes and implementing the inverted fillets of R2. The repaired and reinforced vehicle wheel has the advantages that the strength and service life of the repaired railway vehicle wheel are higher than the original design value; therefore, the comprehensive performance of the repaired railway vehicle wheel is improved; the invention has great value, safety, reliability and simple operation; the invention can clad the vehicle wheel with the laser on the condition of not decomposing the wheelset and eliminate the damages to the internal holes of the vehicle wheel, the vehicle shafts and the bearings possibly generated because of decomposition of the wheelset; furthermore, the invention can become automatic production line after being combined with other equipments.

Description

technical field [0001] The present invention relates to railway wheels. Background technique [0002] Railway wheels are important parts to ensure the operation of locomotives and vehicles. Due to the particularity of railways, parts running on railways are required to have a high safety factor and a long service life. The general design life is more than 20 years. [0003] Before the introduction of TB / T2817-1997, railway freight car wheels were designed and manufactured in accordance with the provisions of GB8601-88. The base material was medium carbon alloy steel, and there were two Φ45 holes on the spokes of each wheel. After the acceleration of railway transportation in my country, due to the increase of load and running speed, cracks are easily generated around the web holes due to local stress concentration, which brings hidden dangers to the safe operation of the locomotive. economic waste. [0004] At this stage, nearly 3 million wheels are used online in my count...

Claims

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Application Information

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IPC IPC(8): B60B17/00B23K26/34
Inventor 刘豫董静陈江
Owner SHENYANG DALU LASER TECH
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