Hitching device for rail car frame and bearing box

Abstract

A hitching device for a rail car frame and a bearing box is characterized in that a side wall of a hook seat is welded to the frame, the upper end of a hydraulic shock absorber and an upper cross arm of the hook seat are installed together through hinges, and the lower end of the hydraulic shock absorber and an upper supporting arm of the bearing box are installed together through hinges; a hanging hook groove is formed in a hanging hook at the lower end of the side wall of the hook seat, and a T-shaped hanging hook at the upper end of a lifting plate is located in the hanging hook groove in the hook seat; the lower end of the lifting plate is installed and fixed to the bearing box through nuts, bolts and spring cushions, a rail car wheel pair is installed on a wheel shaft in the bearing box, and therefore the hitching device for the rail car frame and the bearing box is formed. According to the hitching device, the rail car frame and the bearing box can be hitched together safely and reliably, the lifting difficulty and potential safety risks after transferring or hoisting for maintenance or derailing of a car are avoided, and economic benefits of an enterprise are improved.

Description

technical field [0001] The invention relates to a hitch device, in particular to a rail car frame and bearing box hitch device. Background technique [0002] In the existing railway rail car, a vertical hydraulic shock absorber is vertically installed between the bearing box and the frame of the rail car, and an axle box pull rod is installed longitudinally; a traction rod is installed longitudinally between the frame and the car body, but the bearing There is no vertical hook between the box and the frame. When the rail car is transported or repaired and lifted, the pull rods and hydraulic shock absorbers are relatively stressed, and it is easy to damage the rubber joints of the pull rods and the hydraulic shock absorber; when the rail car derails on the line, there is no corresponding coupling device , when the rail car is vertically lifted and reset, the flexible connection between the bearing box and the frame will be damaged or broken, which will bring huge safety haza...

AI Technical Summary

Problems solved by technology

When the rail car is transported or repaired and lifted, the pull rods and hydraulic shock absorbers are relatively stressed, and it is easy to damage the rubber joints of the pull rods and the hydraulic shock absorber; when the rail car derails on the line, there is no corresponding coupling device , when the rail car is vertically lifted and reset, the flexible connection between the bearing box and the frame will be damaged or broken, which will bring huge safety hazards and inconvenience to the overall lifting of the rail car. The rigging binds the bearing box and the frame, frame and car body to cope with it, not only the safety hazard is not completely eliminated, but also the time for emergency repair and the normal operation time of the line are increased, causing greater losses

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