Rabble blade for excavating railway ballast

A technology of rake teeth and ballast, which is applied in the field of excavation devices of screen cleaners, can solve problems such as failure of connection between rake teeth and excavation chains, inconvenient disassembly and assembly, and achieve the effects of improving service life, preventing eccentric wear, and improving wear resistance

Inactive Publication Date: 2015-10-07
CHANGZHOU RUITAI ENG MASCH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the installation of the rake teeth of the screen cleaning machine is fixed with double elastic pins at the tail, which is inconvenient to disassemble, and during use, the rake teeth are loose due to the fatigue of the elastic pins, resulting in failure of the connection between the rake teeth and the excavation chain

Method used

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  • Rabble blade for excavating railway ballast
  • Rabble blade for excavating railway ballast
  • Rabble blade for excavating railway ballast

Examples

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Embodiment Construction

[0024] Such as figure 1 , 2 As shown in the first embodiment of the present invention, a ballast digging harrow includes a knife handle 1, a cemented carbide wear-resistant part 2 and a cemented carbide cutter head 3. The head of the cutter handle 1 has a neck 1-2 and the front end face 1-1, the hard alloy wear-resistant part 2 is fixedly connected to the neck 1-2, the hard alloy cutter head 3 is fixedly connected to the front end face 1-1, and the hard alloy The top surface of the high-quality alloy wear-resistant part 2 exceeds the front end surface 1-1 of the knife handle 1, and the handle body of the knife handle 1 is provided with a pin installation groove 1-3.

[0025] Such as figure 1 , 2 As shown, the hard alloy wear-resistant part 2 and the neck 1-2 of the shank 1 are welded or interference-connected, and the hard alloy bit 3 and the front end surface 1-1 of the shank 1 are welded.

[0026] Such as figure 1 , 2 As shown, the hard alloy wear-resistant part 2 is an integral ...

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Abstract

The invention discloses a rabble blade for excavating a railway ballast. The rabble blade comprises a handle, a hard alloy wear-resistant part and a hard alloy cutter head. The head of the handle is provided with a neck and a front end face, the hard alloy wear-resistant part is fixedly connected onto the neck, the hard alloy cutter head is fixedly connected onto the front end face, the top face of the hard alloy wear-resistant part is protruded out of the front end face of the handle, and a bolt installation groove is formed in the body of the handle. By applying the rabble blade for excavating the railway ballast, the head of the handle can be prevented from being worn too fast, the hard alloy cutter head can be prevented from dropping, and the disassembly and assembly are convenient.

Description

Technical field [0001] The invention relates to an excavating device for a cleaning machine for cleaning railway tracks. Background technique [0002] The cleaning operation of the railway ballasted track requires crushing and excavating the compacted ballast of the ballast, and the rake teeth in contact with the ballast are severely worn. Chinese Patent No. 201110095841.1 "Abrasion-resistant Rake Teeth of Railway Cleaning Car" proposes to braze the head of a common rake tooth with a hard alloy wear-resistant cutter head, which greatly improves the life of the railway harrow. However, in actual use, it was found that many rakes with carbide heads were exposed to the harrow teeth because of the excessive wear of the steel matrix of the shank head. The load may cause the cemented carbide tip to fall off, which will lead to rapid failure. Especially the bottom rake teeth of the excavation and cleaning operation chain, because of this reason, the probability of failure is the highe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B27/06E02F9/28
CPCE01B27/06E02F9/285E02F9/2858
Inventor 葛志德张青翔郭勐章长荣
Owner CHANGZHOU RUITAI ENG MASCH CO LTD
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