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A catenary car ladder rail grabbing device

A catenary and car ladder technology, which is applied in the direction of ladders, transportation and packaging, railway car body parts, etc., can solve the problems of easy deformation of the clamping fixed end, low reliability and service life, and reduce the operating time of the catenary, etc. Achieve the effects of easy maintenance and maintenance, meet the requirements of working strength and hardness, and improve the utilization rate of skylights

Inactive Publication Date: 2017-08-11
中国铁路济南局集团有限公司济南供电段
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although it can prevent the overturning of the catenary ladder, it has the following disadvantages: 1. Because the distance between the two adjustment blocks is changed by the rotation of the ring adjustment handle, the fastening and loosening of the rail is realized. When fastening and loosening the car, the workers need to turn the ring-shaped adjustment handle several times, and a catenary car ladder is equipped with four rail holders at the same time. The labor intensity of the workers is very high, and the operation is time-consuming and laborious. The operation time is reduced, thereby reducing the working time of workers on the catenary, and reducing the utilization rate of the skylight (the skylight: refers to the time reserved in the train operation diagram for maintenance work on the power supply equipment of the catenary, and the utilization rate of the skylight is also the maintenance efficiency.
); 2. The structure is complex, there are many components, the failure rate is high, and it is not easy to repair and maintain; 3. The weight of each rail holder is more than 20KG, and a catenary car ladder is equipped with four rail grabbers at the same time , with a total weight of more than 80KG, it is very inconvenient to carry; 4. The strength and hardness of the product are not enough, and the fixed end of the clamping is easy to deform, and the reliability and service life of its connection with the rail are low

Method used

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  • A catenary car ladder rail grabbing device
  • A catenary car ladder rail grabbing device
  • A catenary car ladder rail grabbing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 1 ~ Figure 2 As shown, the present invention includes a connecting rod 1, two ends of the connecting rod 1 are respectively provided with a rail claw 2 hinged thereto, and a locking spring 3 arranged obliquely is provided on both sides of each rail claw 2. One end of the locking spring 3 is fixedly connected with the middle part of the rail claw 2, and the other end of the locking spring 3 is fixedly connected with the end of the connecting rod 1. The locking springs 3 located on both sides of each claw 2 are arranged symmetrically along the longitudinal center of the connecting rod 1 . Two hoops 9 are arranged on the connecting rod 1 , and the two hoops 9 are arranged symmetrically along the transverse center of the connecting rod 1 . The connecting rod 1 is a square tube, and the rail claw 2 is a solid iron block.

[0036] The present invention is fixedly connected with the structural round steel at the bottom of the catenary car ladder through the h...

Embodiment 2

[0045] Such as Figure 3 ~ Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that one end of the locking spring 3 is fixedly connected with the rail claw 2 through the insulator 4, and the other end of the locking spring 3 is fixed with the end of the connecting rod 1 through the insulator 4. even. The insulating part 4 is a nylon part. A length adjustment device is provided on the connecting rod 1 . The length adjusting device includes an adjusting sleeve body 5 , and several corresponding sleeve body adjusting holes 6 are arranged at intervals along the length direction of the adjusting sleeve body 5 on two opposite side walls of the adjusting sleeve body 5 . The connecting rod 1 includes two semi-connecting rods 101, and the two side walls opposite to the end of each half-connecting rod 101 away from the rail claw 2 are provided with correspondingly arranged connecting rod adjustment holes 6 matched with the sleeve body adjustment holes. hole ...

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Abstract

The invention relates to a rail grabbing device for an overhead line boarding ladder. The rail grabbing device comprises a connecting rod, wherein a rail claw is hinged at each of two ends of the connecting rod, and one oblique locking spring is arranged on each of two sides of each rail claw; one end of each locking spring is fixedly connected with the corresponding rail claw, and the other end of the locking spring is fixedly connected with one end of the connecting rod. The device is reasonable in structure design, convenient to operate, easy to maintain and high in reliability and can effectively prevent overturning of the overhead line boarding ladder, the operation time is shortened, the labor intensity of a worker is greatly reduced, the weight is reduced, and the portability is improved.

Description

technical field [0001] The invention relates to a rail grabbing device for a catenary car ladder. Background technique [0002] The catenary is the main frame of the railway electrification project, and it is a special form of transmission line erected along the railway line to supply power to the electric locomotive. The catenary vehicle ladder is the main tool for catenary maintenance and climbing operations. It mainly consists of ladders on both sides to form a frame part. The top of the frame is equipped with a top seat and a protective fence. [0003] As we all know, the faster the train travels, the greater the centrifugal force generated when passing through the curve. In order to ensure the safety of the train operation, the outer rail in the curve section has a super-high design, such as the radius of the curve is 1200m, and the outer rail is super high. 150mm. For high-speed EMUs, proper superelevation of the outer rail can ensure the safety of the train, but it ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E06C7/00B61H7/12B60M1/28
CPCB60M1/28B61H7/12E06C7/00
Inventor 蒋涛王犇宋真真
Owner 中国铁路济南局集团有限公司济南供电段