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A variable speed steering device, bulldozer and construction machinery

A steering device and mechanical technology, applied in the direction of steering mechanism, transmission device, mechanical equipment, etc., can solve the problems of high cost, complicated operation, poor versatility, etc., and achieve the effects of energy saving, high transmission efficiency and simple structure

Active Publication Date: 2021-04-02
SHANTUI CONSTR MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide a variable-speed steering device, bulldozer and construction machinery, which are used to solve the problems in the prior art that the steering device of the bulldozer requires a separate hydraulic system to control the steering action, high cost, complicated operation, and poor versatility

Method used

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  • A variable speed steering device, bulldozer and construction machinery
  • A variable speed steering device, bulldozer and construction machinery
  • A variable speed steering device, bulldozer and construction machinery

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Embodiment Construction

[0051] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0052] The clutch used in the tracked vehicle in the prior art refers to a device that has the function of engaging or separating when the main and driven parts transmit power or move on the coaxial line. accomplish.

[0053] The brake in the brake clutch refers to the device that completely stops the mechanical system or equipment in motion. The brakes are classified according to the working status, and can be divided into normally closed and normally open. Among them, the normally closed type means that it is usually in a braking state by spring or gravity, and the mechanical equipment is released when it needs to run. The normally open type means that it is always in the state of releasing the brake, and when braking is required, the brake is operated to apply an external force to enter the bra...

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Abstract

The invention relates to the technical field of bulldozer control and discloses a speed change steering device, a bulldozer and an engineering machine. The speed change steering device comprises: a horizontal shaft connected to the output end of a speed change structure, wherein the speed change structure is used for controlling output speed; a first planet set and a second planet set both arranged on one side of the horizontal shaft; a third planet set and a fourth planet set arranged on the other side of the horizontal shaft; first, second, third and fourth brakes which may be engaged or disengaged respectively with the first, second, third and fourth planet sets, wherein the first and fourth planet sets are identical in output speed and are used for controlling backing of the engineering machine, and the second and third planet gears are identical in output speed and are used for controlling advancing of the engineering machine. The problem of the prior art is solved that a steeringdevice of a bulldozer has the need for an independent hydraulic system to control steering action, with high cost, operational complexity and poor universality occurred.

Description

technical field [0001] The invention relates to the technical field of bulldozer control, in particular to a variable-speed steering device, a bulldozer and construction machinery. Background technique [0002] Tracked vehicle steering mechanism is divided into independent steering mechanism and differential steering mechanism according to whether the tracks on both sides are connected during the steering process. The independent type means that when turning, the outer track of the tracked vehicle still maintains the same speed when driving in a straight line, and only the speed of the inner track is reduced. The differential speed means that when turning, the speed of the outer track of the tracked vehicle increases, and the speed of the inner track decreases, and the amount of increase and decrease is equal, and the center speed of the vehicle remains the same as the original straight-line speed. [0003] The steering mechanism of tracked vehicles generally adopts steerin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D11/08F16H3/62
CPCB62D11/08F16H3/62F16H2200/0039F16H2200/0091F16H2200/2017F16H2200/2053
Inventor 胡凯宣苓娟侯文军李宣秋冯西友
Owner SHANTUI CONSTR MASCH CO LTD