A transmission shaft supporting device, a transmission system and a vehicle

Abstract

The present invention discloses a drive shaft support device, a drive system and a vehicle, The drive shaft support device includes an outer support body assembly, the inner support assembly and two bearings, the outer support assembly includes an outer support and a support ring secured to the inner portion of the outer support, An inn support body assembly is fixedly connected with that supportring, An inn support assembly includes an inner support, Left cover and right cover, the left cover and the right cover are respectively fixed at both ends of the inner support body, The middle part of the left cover and the middle part of the right cover are provided with through holes for the transmission shaft to pass through, the left cover and the right cover are provided with oil seals, thetwo bearings are fixed on one side of the left cover and one side of the right cover respectively, the bearings are used for supporting the transmission shaft, the two bearings are fixed on one side of the left cover and one side of the right cover, and the bearings are used for supporting the drive shaft; a cavity is formed in the inner support body assembly, and an oil cup and an air permeable plug are arranged on the outer side of the right cover. The transmission shaft supporting device, the transmission system and the vehicle of the invention can be continuously lubricated, the dust prevention effect is good, the stress is more uniform, and the positioning and shock absorption effects are better.

Description

technical field [0001] The invention relates to the technical field of vehicle transmission, in particular to a transmission shaft supporting device, a transmission system and a vehicle. Background technique [0002] In an articulated steering walking mechanical vehicle, since the gearbox is located at the front or rear of the vehicle, the rear drive shaft or front drive shaft that transmits power is longer. If the vehicle reaches more than 180 horsepower, the drive shaft will be longer. Long, the longer transmission shaft is prone to vibration, fracture and other related quality accidents, so it is necessary to add support devices to the longer transmission shaft. Existing drive shaft supporting devices generally adopt a support mode with double-sided sealed bearings and a rubber sleeve fixed support mode. [0003] The support method of the sealed bearing needs to install a support frame in the middle of the frame, and a double-sided sealed bearing is installed inside the ...

AI Technical Summary

Problems solved by technology

[0004] Whether it is a sealed bearing support method or a rubber sleeve fixed support method, it is necessary to process the support frame and the vehicle frame as a whole to ensure the coaxiality of the support frame and the drive shaft. This processing method is too costly and the assembly errors are accumulated large, difficult to achieve

Low concentricity and a single support point can easily damage the bearings and rubber sleeves in the support device due to excessive vibration, and eventually the drive shaft will break at the steering knuckle due to excessive partial load

At the same time, this open support structure is directly exposed to the middle hinge part with relatively harsh working conditions, and the outside cannot provide continuous lubrication to the bearings or rubber sleeves, which can easily lead to damage to this structural support due to the entry of foreign matter or poor lubrication.

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