Body Correction Device for Large Passenger and Freight Vehicles

Abstract

The invention relates to a correcting device for a large-size passenger / cargo carriage body, and the correcting device is characterized in that the bottom end of a stretching cylinder (6) is located on a lateral pylon arm (8) and behind a vertical pylon arm (1), wherein a first chain guide wheel (4) which is fixed and a second chain guide wheel (3) which is capable of moving up and down are mounted on the vertical pylon arm (1); a stretching chain (11) passes by the first chain guide wheel (4) and the second chain guide wheel (3) in turn; a jacking cylinder base (14) is mounted on the front side wall of the vertical pylon arm (1); and a jacking cylinder (15), the stretching direction of which is vertical to the moving direction of the vertical pylon arm (1), is mounted in the jacking cylinder base (14). A pylon can be used for realizing the stretching through the stretching chain (11) and also can be used for jacking a deformed part, thereby correcting the deformed part of the carriage body under the combined action of jacking and stretching, achieving a higher acting force applied to the deformed part and achieving a better correcting effect. The loading point of the pylon is greatly reduced, so that the stability of the pylon is better.

Description

technical field [0001] The invention relates to a car body correction machine as an automobile maintenance equipment, in particular to a car body correction machine for large passenger and freight vehicles. Background technique [0002] The pylon of the existing car body correction machine comprises a cylindrical pylon longitudinal arm and a pylon cross arm connected to the lower end of the pylon longitudinal arm, and the stretching oil cylinder is installed in the cylinder of the pylon longitudinal arm to pull A push rod is installed on the upper end of the oil extension cylinder, and the top of the push rod is connected with a chain, and the outer end of the chain is used to stretch the deformed part of the car body after the chain goes around the ring sleeve on the longitudinal arm of the tower column. Therefore, the inner end of the chain is located at the highest position of the tower column, and the reaction force suffered by the chain when it is stretched acts on the ...

AI Technical Summary

Problems solved by technology

This kind of tower column can meet the requirements for the correction and stretching of small vehicles, but for the body correction of large passenger and freight vehicles, due to the obvious increase in tension, the tower column is easily deformed by force, so basically it cannot be used

[0003]Because the tower column of the existing vehicle body correction machine only has the function of stretching, and has no function of pressing the deformation of the vehicle body, the fixing (clamping) of the vehicle body on the platform The requirements are very high, especially for large passenger and freight vehicles, due to the obvious increase in the pulling force, it is not only difficult to fix the car body, but also difficult to repair the deformed parts of the car body by using the tower column of the existing car body correction machine

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