Composition type draw gear of locomotive

Abstract

A combined towing mechanism for locomotive is composed of the first towing unit for the bogies at both ends and the second towing unit for the middle bogie. The bogie at both ends has a central low-position push-pull oblique pull rod structure consisting of a horizontal towing rod, a triangular supporting rod and an oblique towing rod. The middle bogie has a central push-pull horizontal towing rod structure consisting of a long towing rod and join part.

Description

technical field [0001] The invention relates to a traction device, in particular to a locomotive combined traction device, belonging to locomotive component devices. Background technique [0002] The BO-BO-BO shaft locomotive running part consists of two end bogies and one middle bogie. The traction device mainly transmits the traction and braking force of the locomotive, and at the same time coordinates the relative movement between the bogie and the car body. Domestically, there are mainly 6K locomotives, SS7, SS7B, SS7C, SS7D, narrow-gauge diesel locomotives exported to Myanmar by Dalian Locomotive Works (referred to as Myanmar locomotives), while foreign countries mainly include Japanese EF200 locomotives, EF500 locomotives, Swedish RC locomotives, GM10, Russian ЭII10 electric locomotives and BII85, BII86 electric locomotives, etc. The traction devices of these locomotives mainly include the following types: Z-shaped low-position diagonal stay rods represented by 6K an...

AI Technical Summary

Problems solved by technology

The traction devices of these locomotives mainly include the following types: Z-shaped low-position diagonal stay rods represented by 6K and SS7 series locomotives. This traction device has a high adhesion utilization rate and good recovery performance of the bogie. , the height of the traction point needs to be adjusted with the wear of the tread, and there are multiple friction pairs in the traction device, which increases the workload of maintenance; the central pin traction device represented by the Myanmar locomotive has a simple structure, but the adhesion utilization rate is low ; The low-centered Z-type pull rod represented by the EF500 locomotive, this kind of traction device has good neutrality, but the traction point is high, and the adhesion utilization rate is low; Single tie rod, this kind of traction device has a simple structure, but the adhesion utilization rate is relatively low; the combined traction device represented by the EF200 locomotive, that is, the end bogie is a central push-pull pull rod, and the middle bogie adopts a Z-shaped low-position ramp Tie rod, this combined traction device has a high adhesion utilization rate, and the intermediate bogie has good reset performance, but the structure of the intermediate bogie traction device is relatively complicated

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