Independent traveling unit and vehicle

Abstract

The invention discloses an independent traveling unit comprising a hydro-pneumatic spring cylinder, a steering device, a bracket, a speed reducer, a motor and a wheel assembly, wherein the hydro-pneumatic spring cylinder is fixedly connected with a frame; the steering device is arranged on the hydro-pneumatic spring cylinder and can rotate around the hydro-pneumatic spring cylinder; one end of the bracket is fixedly connected with one end of the hydro-pneumatic spring cylinder, the other end of the bracket supports the motor; and the speed reducer is arranged between the motor and the wheel assembly and can drive the wheel assembly to rotate. The invention also provides a vehicle comprising the independent traveling unit. According to the technical scheme provided by the invention, a driving system and a braking system are both realized through hydraulic pressure; the hydro-pneumatic spring cylinder is fixedly connected with the frame, therefore the suitability to an unsmooth road surface and the height adjustability of a finished vehicle are realized; single tyre steering modes and whole vehicle steering modes are diverse; and the structure is simple and the weight of the whole vehicle body is reduced.

Description

technical field [0001] The invention relates to vehicle technology, in particular to an independent driving unit and a vehicle including the independent driving unit. Background technique [0002] At present, domestic oil-pneumatic suspensions are widely used in multi-axle super-heavy vehicles, especially on the special chassis of engineering vehicles, but most of them replace traditional leaf springs in the form of oil-pneumatic springs matched with traditional non-disconnected axles. The application of independent oil and gas suspension is mainly concentrated on passenger cars and super-large special vehicles, such as empty dump trucks and large flat-bed beam trucks. [0003] At present, the main structural forms of the domestic independent oil-pneumatic suspension driving system are: oil-pneumatic spring plus double wishbone plus guide device, and its driving method adopts the traditional mechanical transmission method of the transmission shaft. [0004] From an internat...

AI Technical Summary

Problems solved by technology

[0006] The technical problems in the above existing technologies are that the overall weight is heavy, the structure is complex, and it is difficult to realize modularization; the cylinder body and the frame of the oil-gas spring are connected by pins or bolts, so that the pins or bolts bear vertical dynamic loads and bear lateral loads. The shear force affects the load and service life; the wheel runout during driving has an impact on the transmission performance of the drive shaft; the drive form of the gearbox, transfer case, and drive shaft is complex, the overall weight of the car is heavy, and the frame The lower space is occupied; the adjustment of the vehicle height is affected by the drive shaft

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