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Wear-resistant alloy raking tooth for railway ballast-cleaning machines

A wear-resistant alloy and sieve cleaning technology, which is applied in the field of wear-resistant alloy teeth, can solve problems such as short service life, low operating efficiency, and large consumption, and achieve improved wear resistance, extended service life, and improved impact resistance. Effect

Inactive Publication Date: 2012-01-25
武汉铁路科学技术研究发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently used grilling gear adopts an integral structure, the shape of the gear head is conical, the service life is short, the replacement is frequent, and the consumption is large, which makes the operation efficiency low and cannot be solved for a long time

Method used

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  • Wear-resistant alloy raking tooth for railway ballast-cleaning machines
  • Wear-resistant alloy raking tooth for railway ballast-cleaning machines
  • Wear-resistant alloy raking tooth for railway ballast-cleaning machines

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Embodiment Construction

[0015] Below in conjunction with accompanying drawing, the present invention is further described: as figure 1 , 2 The wear-resistant alloy gear used for the railway screen cleaning locomotive shown in , includes a tooth handle 1 and a tooth head 2 formed by integral die forging, and a tooth tip 3 that is press-fitted with the tooth head 2 and inserted into the front end of the tooth head 2, The tooth head and tooth tip are compounded by interference pressing, which improves the compounding process of cemented carbide and improves the wear resistance and impact performance of the alloy gear.

[0016] The tooth shank 1 and the tooth head 2 are made of grade: 60Si2Mn alloy steel; the tooth tip 3 is made of grade: YG8~YG18 hard alloy. The tooth shank 1, the tooth head 2 and the tooth tip 3 are assembled into a whole. The use of new hard alloy materials has significantly improved the wear resistance of the racking teeth.

[0017] Such as figure 1 , 2 As shown, the outer conto...

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Abstract

A wear-resistant alloy raking tooth for railway ballast-cleaning machines is characterized in that: the wear-resistant alloy raking tooth comprises a tooth handle (1), a tooth head (2) and a tooth tip (3), the tooth handle (1) and the tooth head (2) are integrally die-forged, the tooth tip (3) is embedded into the front end of the tooth head (2) by way of interference press mounting, the tooth handle (1) and the tooth head (2) adopt 60Si2Mn alloy steel, the tooth tip (3) adopts YG8 to Yg18 hard alloy, the profile of the raking tooth is shaped like a bullet and a symmetrical rotation curve with the axis as a center, and thereby the wear allowance volume is enlarged. Since the tooth tip is embedded into the front end of the tooth head by means of the interference press mounting process, the stress structure and combination property of the raking tooth are improved, the wear resistance and impact toughness of the raking tooth are enhanced, the service life of the raking tooth is prolonged, and thereby the raking tooth can be easily popularized and applied.

Description

technical field [0001] The invention relates to a railway line maintenance machine, in particular to a wear-resistant alloy grilling tooth for a railway screen cleaning locomotive. Background technique [0002] Grilling gear is an important part of railway line maintenance machinery - railway screen cleaning machine. Grilling gear moves at a high speed with the forming chain, and at the same time advances along the track at a slow speed with the sieve cleaning machine. Its working process is: it starts to contact the ballast group, at this time the pick teeth bear the impact of the ballast, and then the pick teeth are inserted into the ballast group, breaking the agglomeration between the ballast groups, making the ballast group loose and collapsed, at this time The ballast continuously impacts and pushes the grill teeth, and at the same time, the excavated ballast slides along the surface of the grill teeth. The edges and corners of the ballast perform microscopic cutting a...

Claims

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Application Information

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IPC IPC(8): E01B27/06
Inventor 邓辉熊伶俐刘金华曹文平付孔兵余金桂杨国年
Owner 武汉铁路科学技术研究发展有限公司
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