Coupler, knuckle and coupler body

Abstract

The invention discloses a car coupler, a coupler knuckle and a coupler body. In the structure of the coupler knuckle, the coupler knuckle is sectioned along a vertical surface of a section perpendicular to an impact surface of an upper impact table or along a vertical surface of a section perpendicular to a pulling surface of an upper pin protector to obtain a fracture surface A of the impact surface of the upper impact table and a fracture surface B of an impact surface of the upper pin protector, the minimum horizontal distance between the fracture surface A and the fracture surface B is a,15mm<=a<=30mm, and / or the coupler knuckle is sectioned along a vertical surface of a section perpendicular to an impact surface of a lower impact table or along a vertical surface of a section perpendicular to a pulling surface of a lower pin protector to obtain a fracture surface C of the impact surface of the lower impact table and a fracture surface D of an impact surface of the lower pin protector, the minimum horizontal distance between the fracture surface C and the fracture surface D is b, and 15mm<=b<=30mm. By the structural design of the coupler knuckle and the coupler body, the problems of easiness in fracture and short service life of an existing coupler knuckle and an existing coupler body can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of railway transportation, in particular to a coupler, a knuckle tongue and a coupler body. Background technique [0002] The coupler is one of the most basic and important components of a railway vehicle. It is installed at both ends of the vehicle to connect two adjacent vehicles and transmit the longitudinal force of the train. There are many types of couplers, but the most widely used coupler is the articulated coupler, such as Figure 1-2 As shown, the articulated coupler includes components such as a coupler body 03, a knuckle tongue 01, a knuckle lock, a knuckle pusher, and a knuckle pin 02. The knuckle 01 can rotate around the knuckle pin 02 to realize the opening and closing of the coupler. The main bearing parts inside the coupler are the traction platform of the knuckle knuckle 01 and the traction platform of the coupler body 03. Such as figure 2 As shown, two couplers are linked to realize the...

AI Technical Summary

Problems solved by technology

In the prior art, the distance B between the traction surface of the upper pin flange 03a and the upper impact surface 03c is relatively large, resulting in a wider width of the upper impact platform 03b, and a wider width of the lower impact platform 03e, resulting in The impact table of the hook body is relatively close to the traction table, which also reduces the structural strength of the traction table of the hook body, which is easy to cause the breakage of the upper and lower traction tables of the hook body, and affects the service life of the hook body and knuckle

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