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Incorrect rotation preventing device of transmission mechanism

A technology of transmission mechanism and rotating device, which is applied in the directions of transportation and packaging, transportation of passenger cars, railway car body parts, etc. Good performance and reliable performance

Inactive Publication Date: 2010-05-19
CRRC TAIYUAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the bottom door of the existing railway freight car is easily opened by misoperation, resulting in driving safety accidents and economic losses, the present invention provides a transmission mechanism anti-misrotation device

Method used

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  • Incorrect rotation preventing device of transmission mechanism
  • Incorrect rotation preventing device of transmission mechanism
  • Incorrect rotation preventing device of transmission mechanism

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Embodiment Construction

[0014] The specific embodiment of the present invention will be further described in conjunction with the accompanying drawings.

[0015] The anti-misrotation device of the transmission mechanism includes an L-shaped limiter 2 assembled with the drive shaft 1 of the transmission mechanism, and the lower end of the pull ring 3 that can be hung on the limiter 2 is installed on the lower end of the rotating arm 4. The upper end of arm 4 is rotatably mounted on the bearing 5 through the rotating shaft 8 , and the line between the limit contact point of the draw ring 3 on the limiter 2 and the center of rotation of the draw ring 3 is below the rotating shaft of the rotating arm 4 .

[0016] Such as figure 1 As shown, the present invention adopts the eccentric locking principle, restricts the rotation of the limiter 2 through the pull ring 3, and the rotating arm 4 is always at the lowest position under the action of gravity. When the limiter 2 rotates, the pull ring 3 will rise to...

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Abstract

The invention belongs to a part for a lorry, in particular to an incorrect rotation preventing device of a transmission mechanism, solving the problem that a bottom door of the traditional lorry is easy to be incorrectly operated so as to cause running safety accidents and economic losses. The incorrect rotation preventing device of the transmission mechanism comprises an L-shaped limitator assembled with a transmission shaft of the transmission mechanism into a whole, the lower end of a suspension link which can be hung on the limitator is rotatablely arranged at the lower end of a rotation arm, the upper end of the rotation arm is rotatablely arranged on a supporting seat through the rotation shaft, a tie line between an upper limit contact point of the suspension link and the surface of the inner side of the limitator and a rotation centre of the suspension link is located below the rotation shaft of the rotation arm, and a tooth-type ratchet wheel and a pawl mechanism which prevent reversion of the rotation arm are arranged on the rotation shaft. The invention has the advantages of novel structure, reliable incorrect rotation preventing performance, good security performance and convenient operation, effectively prevents incorrect rotation of a switching mechanism of the bottom door of the lorry, not only can be applied to the lorry, but also can be popularized and applied to incorrect rotation of other transmission shafts.

Description

technical field [0001] The invention belongs to components for railway freight cars, and in particular relates to a device for preventing wrong rotation of a transmission mechanism. Background technique [0002] At present, many railway wagons on domestic railway lines, such as the K18 series and KM70 coal hopper wagons for transporting coal, have basically the same bottom door opening and closing mechanism, and the two-stage locking and multiple protection measures adopted are completely It can ensure the driving safety of the vehicle. However, in practical applications, when some non-direct transport vehicles stop on the way, there is a possibility that idlers get on the vehicle and flip it randomly, which may affect the technical state of the vehicle bottom door opening and closing mechanism and the reliability of the locking. Once the bottom door is opened abnormally, it will not only cause certain economic losses to the user due to coal leakage, but also may cause majo...

Claims

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Application Information

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IPC IPC(8): B61D7/24
Inventor 刘俊雷程平刘文盛谢剑锋
Owner CRRC TAIYUAN CO LTD
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