Center ball pin traction device used for connecting frame and bogie

Abstract

The invention provides a center ball pin traction device for connecting of a vehicle frame and a steering frame. The center ball pin traction device comprises the vehicle frame and a framework intermediate beam located below the vehicle frame. A traction seat is fixed to the middle of the framework intermediate beam, and a stepped mounting hole is axially formed in the traction seat. A limiting traction mechanism is arranged in the middle of the stepped mounting hole, and an upper ball disc located below the limiting traction mechanism is placed in the stepped mounting hole and makes contact with an abrasion cushion. The vehicle frame is fixedly connected with the upper end of a center ball pin, and the lower end of the center ball pin is inserted into the stepped mounting hole, penetrates through the limiting traction mechanism and fixedly connected with the upper ball disc. After the center ball pin moves down to enable the upper ball disc and a lower ball disc to form ball face core disc traction through contacting of the abrasion cushion, high-speed operation of a vehicle is achieved, or after the center ball pin moves up to enable the upper ball disc to be separated from the lower ball disc to form center pin traction, low-speed operation of the vehicle is achieved. The structure is simple, the design is reasonable, the requirement for speed increasing of the vehicle is met, and the traction to the vehicle at the time of low-speed driving of the vehicle is achieved.

Description

technical field [0001] The invention belongs to the technical field of railway machinery design and manufacture, and in particular relates to a central ball pin traction device used for connecting a vehicle frame and a bogie. Background technique [0002] With the development of my country's railway construction and the improvement of operating speed, the speed of the configured engineering vehicles and railway rescue vehicles will also increase. When railway engineering vehicles and railway rescue vehicles are operating, due to the stable equipment requirements on the frame, bogies are required There is no relative movement between the wheel set and the frame, and between the frame and the frame to prevent the frame from swinging left and right and prevent the vehicle from tipping over; a secondary lock is required between the frame and the bogie, and the existing bogies generally use rigid side bearings The support or the full bearing mode of the center plate cannot meet the...

AI Technical Summary

Problems solved by technology

[0002] With the development of my country's railway construction and the improvement of operating speed, the speed of the configured engineering vehicles and railway rescue vehicles will also increase. When railway engineering vehicles and railway rescue vehicles are operating, due to the stable equipment requirements on the frame, bogies are required There is no relative movement between the wheel set and the frame, and between the frame and the frame to prevent the frame from swinging left and right and prevent the vehicle from tipping over; a secondary lock is required between the frame and the bogie, and the existing bogies generally use rigid side bearings The support or the full bearing mode of the center plate cannot meet the high-speed operation requirements of the vehicle, and the connection method of the spherical center plate and the constant contact elastic side bearing used for the speed-up bogie, when the construction operation needs to be locked by the second system, the upper and lower spherical center plates will be separated. Disengagement occurs, unable to meet vehicle towing requirements

Images