Load transverse adjusting mechanism for bilateral half-spring type holding head

Abstract

The invention relates to a load transverse adjusting mechanism for a bilateral half-spring type holding head, which is installed in a holding head box body of a lifting unit of a pit type car locomotive, is fixedly connected with the box body, is directly connected with a regulating unit at the end part of the holding head, and is installed on a leading screw of the regulating unit. The transverse adjusting mechanism comprises a regulating nut, a regulating nut guiding part, a guiding pipe, a guiding sleeve, a nut fixing plate, a flange plate, a compression spring and a sliding shaft. The load transverse adjusting mechanism is suitable for unload transverse adjustment and load transverse fine adjustment for holding heads of pit type car locomotives of CRH (China Railway High-Speed) trains. Proved by theoretical analysis, experimental study and multiple live synchronous lifting replacement bogie homework, the load transverse adjusting mechanism is reliable and practical in structure, safe and convenient for use, saves labor, and meets the requirements of the entire CRH synchronous car homework of the compatible type pit car locomotive in China. The mechanism is also suitable for other large-load and long-structure occasions needing transverse alignment during installation.

Description

technical field [0001] The invention relates to a head support part of an underground fixed carriage crane used for maintenance work of railway locomotives, in particular to an adjustment mechanism capable of performing the functions of no-load lateral adjustment of the support head and on-load lateral fine adjustment. Background technique [0002] The pit-type crane is used for the inspection and repair of EMUs, high-speed trains, high-power locomotives or urban rail vehicles without disassembly. The pit-type crane can replace the vehicle bogie and the electrical facilities under the car body , Overhaul and replacement of electrical facilities on the roof. [0003] As EMUs and high-speed trains are put into use in a large area in our country, the pit-type locomotives for EMUs will play a vital role in the advanced repair process of train maintenance. When framing an EMU, first use the bogie lifting unit to lift the entire train (16-car formation or 8-car formation) to a ce...

AI Technical Summary

Problems solved by technology

The characteristic is that the load fine-tuning needs a lot of force, and it needs to be adjusted synchronously on the left and right sides of the carriage. The people on one side push in and the people on the other side pull out to realize the adjustment. Because of the rigid structure, the On-load fine-tuning is entirely dependent on overcoming the mechanical deformation of the equipment structure itself, so it requires a very large force and a handle mechanism, which is very inconvenient to use;

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