Device and method for connecting brake pipe systems of railway freight cars

A connecting device, a technology for railway freight cars, applied in the direction of adjustable connection, flange connection, pipe/pipe joint/pipe fitting, etc., can solve the problem of normal use of the vehicle, failure of the brake pipe seal, leakage at the connection of the brake pipe system, etc. problems, to avoid welding, reduce leakage, and reduce the difficulty of assembly

Active Publication Date: 2014-01-01
CRRC QIQIHAR ROLLING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the operation of the vehicle, due to the existence of factors such as brake pipe vibration, loosening of the pipe joint fastening bolts, and rebound deformation of the elbow,

Method used

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  • Device and method for connecting brake pipe systems of railway freight cars
  • Device and method for connecting brake pipe systems of railway freight cars
  • Device and method for connecting brake pipe systems of railway freight cars

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] Such as Figure 1~4 As shown, the railway wagon brake piping connection device of the present invention includes two symmetrically arranged flange bodies 1 , a sealing ring 2 and several bolts 3 , nuts 4 and washers 5 . Two symmetrically arranged flange bodies 1 are fixedly connected together by several bolts 3 , nuts 4 and washers 5 , a cylindrical cavity is formed in the middle of the two flange bodies 1 , and a sealing ring 2 is arranged in the cylindrical cavity.

[0022] In the above embodiment, if Figure 5-7 As shown, each flange body 1 adopts a semicircular connecting piece with wings, and the middle part of the flange body 1 is provided with a sealing groove 11 for placing the sealing ring 2; both sides of the sealing groove 11 are provided with axial Width adjustment platform 12; the outside of the axial width adjustment platform 12...

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PUM

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Abstract

The invention relates to a device and a method for connecting brake pipe systems of railway freight cars. The device is characterized by comprising two flanges, a sealing ring, a plurality of bolts, a plurality of nuts and a plurality of washers; the flanges are symmetrically arranged and are fixedly connected with each other by the bolts, the nuts and the washers, and a cylindrical cavity for accommodating the sealing ring is formed between the two flanges. The method includes sleeving the sealing ring at the ends of two brake pipes pressed by limiting check rings; adjusting the distance between the two limiting check rings to reserve a gap between the two brake pipes; respectively fastening the sealing ring and the limiting check rings into a sealing groove in one certain flange and limiting grooves; pressing axial width adjusting tables to axially and finely adjust the certain flange, enabling the distances from the ends of the two brake pipes to the longitudinal center line of the certain flange to be equal and fastening the other flange on the certain flange; inserting the bolts into bolt holes in the two fastened flanges, sleeving the washers at threaded rod ends of the bolts and fixing the nuts at the threaded rod ends of the bolts. The device and the method can be widely applied to brake pipe systems of railway freight cars.

Description

technical field [0001] The invention relates to a connecting device and a connecting method thereof, in particular to a connecting device and a connecting method of a railway wagon brake pipe system. Background technique [0002] At present, the connection methods of the brake piping system in the braking system of railway freight cars mainly include threaded connection, flange connection and compression type quick-fit pipe joint connection, and these connection methods are rigid connections. During the operation of the vehicle, due to the existence of factors such as brake pipe vibration, loosening of the pipe joint fastening bolts, and rebound deformation of the elbow, it is easy to cause the brake pipe seal to fail, and the joints of the brake pipe system (especially the three-way connection) Leakage, thus affecting the normal use of the vehicle. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a flexib...

Claims

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Application Information

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IPC IPC(8): F16L27/107
CPCF16L23/08F16L23/22F16L27/107
Inventor 王力陈时虎李雪于海生
Owner CRRC QIQIHAR ROLLING CO LTD
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