Locomotive vehicle, vehicle hook and hook body

Abstract

The invention discloses a locomotive vehicle, a vehicle hook and a hook body. The hook body comprises an upper traction table, a lower traction table, an axle hole and an inner cavity. The inner cavity is divided into an upper cavity and a lower cavity. The hook body also comprises an expansion cavity. The inner face of the expansion cavity is smoothly connected to the inner face of the upper cavity or the inner face of the hook body, and the outer face of the expansion cavity is smoothly connected to the outer face of the hook body on the outer face of the upper cavity. By forming the expansion cavity, the structure of the inner cavity for accommodating a hook tongue of the hook body is increased, the reserved space of the hook tongue structure is enlarged, the strength of the hook tongueis improved, the problem that the hook tongue is broken prematurely is solved, and the service life of the hook tongue is prolonged.

Description

technical field [0001] The invention relates to the technical field of railway transportation, and more specifically, relates to a rolling stock, a coupler and a coupler body. Background technique [0002] The coupler is one of the most basic and important components of a rolling stock. It is installed at both ends of the rolling stock, and its function is to connect the rolling stock and transmit the longitudinal force of the train. [0003] see Figure 1-5 , figure 1 A schematic diagram of the front structure of the coupler provided by the prior art; figure 2 A schematic diagram of the top view structure of the coupler provided by the prior art; image 3 The schematic diagram of the main sectional structure of the hook body provided by the prior art; Figure 4 A schematic diagram of the side sectional structure of the hook body provided by the prior art; Figure 5 It is a schematic diagram of the main sectional structure of the coupler installed with the knuckle prov...

AI Technical Summary

Problems solved by technology

[0005] Because the inner cavity 204 of the hook body 200 to accommodate the knuckle 300 directly determines the structural shape and strength of the knuckle 300, and the current inner cavity height C value is small, which limits the structural space of the knuckle 300, so that the knuckle 300 The structural strength is low, and it is easy to break during use, which affects the service life of the knuckle 300

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