Friction type power take-off with brake structure

CN117167421BActive Publication Date: 2026-05-19SINO TRUK JINAN POWER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SINO TRUK JINAN POWER CO LTD
Filing Date
2023-08-25
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing friction-type power take-offs continue to rotate at the output port after disengagement, affecting the rear connection mechanism and requiring additional brake pads.

Method used

A friction-type power take-off with a braking structure was designed. It uses alternating steel plates and friction plates, combined with helical tension braking. The braking force is generated by the embedding and rotation of the friction plates, realizing the sharing of torque transmission and braking, and avoiding the rotation of the output port.

Benefits of technology

It achieves flexibility in disengaging and engaging the power take-off during vehicle operation, while eliminating the need for additional brake pads, thus improving braking force and avoiding the impact of slight rotation of the output port on the rear connection mechanism.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117167421B_ABST
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Abstract

The application discloses a friction type power take-off with a brake structure, which comprises a box body, an output shaft, an output shaft gear, a clutch friction plate set, a torque transmission ring, a piston and an end cover, the output shaft is supported on the box body and the end cover, the output shaft gear is sleeved on the output shaft, the clutch friction plate set, the piston and the torque transmission ring are sequentially sleeved on the output shaft, and an oil cavity is formed between the piston and the torque transmission ring; a first oil channel and a second oil channel are arranged on the output shaft, the first oil channel is connected to the oil cavity, and the second oil channel is connected to a second bearing and the clutch friction plate set; a first gear ring is arranged on the side surface of the output shaft gear, and a torque transmission groove is arranged on the torque transmission ring; the clutch friction plate set comprises alternately arranged steel sheets and friction plates, the steel sheets comprise inner steel sheets, outer steel sheets and outer tension sheets, the inner steel sheets are meshed with the first gear ring for transmission inwards, and the outer steel sheets and the outer tension sheets are fixed to the box body outwards. The friction plate of the application considers the torque transmission and the brake function, adopts the spiral tension brake, cooperates with multiple sets of friction plates for common braking, and improves the brake force.
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