Bogie skirting board installation structure of high-speed EMU

An installation structure and bogie technology, applied in the direction of bogie, railway car body, transportation and packaging, etc., can solve the problems such as vibration noise, loose skirt lock thread, skirt plate falling off, etc. Air drag reduction effect, increase service life, avoid collision effect

Inactive Publication Date: 2017-05-31
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual application, the following problems often occur: (1) skirt locks are prone to thread loosening; (2) bogie skirts are prone to vibration and noise; (3) the position where bogie skirts are installed with skirt locks is often damaged; (4) If the maintenance is not in place for a long time, the skirt board will fall off, which will pose a great safety hazard

Method used

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  • Bogie skirting board installation structure of high-speed EMU
  • Bogie skirting board installation structure of high-speed EMU
  • Bogie skirting board installation structure of high-speed EMU

Examples

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Comparison scheme
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Embodiment Construction

[0017] refer to figure 1 , figure 2 , the present invention includes a bogie skirt plate 3, a fixed bracket 2, an anti-rotation slider 9, a fastening bolt 8, a locknut 11, and a safety pin 12, and four sleeves 5 are arranged on the bogie skirt plate, and the The fixed bracket is provided with 4 fixed pins 6, and the 4 sockets of the bogie skirt plate and the 4 fixed pins of the fixed bracket are inserted and installed. The inner surface of the bogie skirt plate is provided with a chute 7, and an anti-rotation The slider 9 and the fastening bolt 8 are placed in the anti-rotation slider 9, and pass through the fixed bracket 2 to fasten the bogie skirt and the fixed bracket together through the locknut 11 and the safety pin 12 to form a stable anti-rotation Loose structure.

[0018] refer to image 3 , Figure 4 , a fixed bracket 2 is arranged under the side beam 1 of the underframe of the vehicle body, and a fixed pin 6 is arranged on the fixed bracket 2 .

[0019] refer t...

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PUM

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Abstract

A bogie skirting board installation structure of a high-speed EMU is characterized by comprising a bogie skirting board, a fixed support, an anti-rotating sliding block, a fastening bolt, a lock nut and safety pins. The bogie skirting board is provided with four sleeve bases, the fixed support is provided with four fixed pins, the four sleeve bases of the bogie skirting board and the four fixed pins of the fixed support are installed in an inserted connection mode, the inner side of the bogie skirting board is provided with a sliding groove, the anti-rotating sliding block is arranged in the sliding groove, and the lock nut is placed in the anti-rotating sliding block and penetrates the fixed support to fasten the bogie skirting board and the fixed support together through the lock nut and the safety pins to form a stable anti-loosing structure. According to the bogie skirting board installation structure, it is guaranteed that the bogie skirting board is not loosened, and the safety of the bogie skirting board is improved. Nylon sleeves are arranged between the sleeve bases and the fixed pins, and motion noises of the bogie skirting board are reduced. The inner side of the bogie skirting board is provided with the sliding groove, the exposed surface is kept smooth, and an appearance effect and an air resistance reduction effect of the bogie skirting board are improved.

Description

technical field [0001] The invention belongs to the field of railway transportation, and in particular relates to an anti-loosening installation structure for the bogie skirt plate of an EMU. Background technique [0002] As the speed of the EMU increases, the influence of air resistance on the EMU becomes greater and greater. Bogie skirts need to be installed on both sides of the lower bogie of the high-speed EMU to reduce drag. [0003] The existing high-speed EMU apron installation structure is to set a fixed bracket under the car body chassis, install an apron lock on the bogie apron, and install and fix the bogie apron through the apron lock. The connection and fixing scheme is essentially a screw connection. In actual application, the following problems often occur: (1) the skirt plate lock is prone to loose threads; (2) the bogie skirt plate is prone to vibration and noise; (3) the position where the skirt plate is installed on the bogie skirt plate is often damaged;...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F5/50B61D17/02
CPCB61D17/02B61F5/50Y02T30/00
Inventor 杜秋男邓海何玲利
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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