CN203603188U

CN203603188U - Semi-electronic-control operation handle for bulldozer

Info

Publication number: CN203603188U
Application number: CN201320825982.9U
Authority: CN
Inventors: 石松山; 王涛卫; 王生波; 赵建军; 付鹤翔
Original assignee: Shantui Chutian Construction Machinery Co Ltd
Current assignee: Shantui Chutian Construction Machinery Co Ltd
Priority date: 2013-12-16
Filing date: 2013-12-16
Publication date: 2014-05-21
Anticipated expiration: 2023-12-16

Abstract

The utility model provides a semi-electronic-control operation handle for a bulldozer. The handle is fixed to the upper end of a center shaft. A reset spring is arranged on the center shaft. The end portion of the handle is provided with a gear ascending switch, a gear descending switch and an advancing and retreating switch. The gear ascending switch and the gear descending switch are automatic resetting button switches. The advancing and retreating switch is a two-position rocker switch. The handle is provided with a mechanical rocking arm connected with a flexible shaft of a connecting rod. The mechanical rocking arm is fixed to the lower end of the center shaft. The flexible shaft of the connecting rod is a steering brake switch manually controlled. The operation handle integrates the advantages of high stability and reliability of a mechanical control mechanism and the advantages of simple operation, light weight and high control precision of an electronic control handle mechanism, and reasonably and effectively avoids the defects that the mechanical control mechanism is complex in structure, the operation consumes labor, the technical content is low, the reliability of the electronic control handle is poor, and the price is high, the controllability and the comfort of equipment are greatly improved, mechanical wear caused by manual shifting is reduced, the work efficiency, the reliability and the stability of the equipment are improved, and the failure rate of the handle is effectively lowered.

Description

Bulldozer half electric control operation handle

Technical field

The utility model relates to bulldozer operating grip, especially a kind of bulldozer half electric control operation handle.

Background technology

Nowadays, work machine operation personnel are to engineering machinery driver comfort, reliability, simplicity has proposed higher instructions for use, the particularly bulldozer of operation under adverse circumstances and under operating mode, traditional bulldozer is on driver behavior, moving forward and backward of vehicle is a mechanical action bars, left steering and right turn are respectively independent action bars, the gear of forward-reverse is also an independent mechanical operation bar, mechanical action bars is many, and position distribution more complicated, so in operation process, the operant level of human pilot has been proposed to very high requirement, each action bars needs coordinated manipulation, process just can fulfil assignment, operating personnel need to operate each action bars back and forth, for short distance transported material or while moving soil, both increased operating personnel's labour intensity, the power consumption of motor and the mechanical wear of equipment are increased again.Electric control handle is as a kind of control device proposing under electronic information communication technical development, on full hydraulic bulldozer, bring into use abroad, operation comfort that this electric control handle is good, convenience, accuracy etc. have obtained the generally approval of human pilot.But it is expensive, poor reliability, unstable, the generality that the shortcomings such as system requirements is higher also limited to its application, on bulldozer, do not have the reasonable plan that solves above-mentioned two kinds of problems at home.

Summary of the invention

The purpose of this utility model is to provide a kind of bulldozer half electric control operation handle, the advantage effective integration of mechanical operation and electric-controlled type operating grip can be utilized, rationally avoid the shortcoming of mechanical type and electric-controlled type, have mechanical type and electric-controlled type advantage concurrently, effectively both are fused to together, tractor driver can utilize that this half electric control handle is convenient, safety, accurately realize to bulldozer advance, retreat, turn to, the walking such as gearshift, speed governing controls.

The purpose of this utility model realizes as follows: handle is fixed on the upper end of central axis, back-moving spring is set on central axis, handle end arranges upshift switch, kickdown switch, forward-reverse switch, upshift switch and kickdown switch are self-resetting button switch, and forward-reverse switch is two rocker switchs; Have a mechanical rocking arm that connects connecting rod flexible axle, mechanical rocking arm is fixed on central axis lower end, and connecting rod flexible axle is the braking in a turn switch of manually controlling.

Central axis middle part arranges wiring board, and upshift switch, kickdown switch, forward-reverse switch are electrically connected with wiring board, and wiring board connects output line, is connected to host computer control part.

Walking, speed change are continued to use to electrichydraulic control, braking in a turn is in order fully to meet the operating habit of human body, in conjunction with the external structure of electric control handle, be designed to mechanical rocker arm body, drivening rod flexible shaft manipulation braking in a turn valve is realized the braking in a turn action of vehicle, such mechanism can effectively avoid the mechanical mechanism of mechanical actuator complexity, and needs to locus.While turning to by push-and-pull before and after handle, rotatable handle, central axis rotates, drive bottom machinery rocking arm to produce rotation, machinery rocking arm drives braking in a turn valve events by connecting rod flexible axle, thereby realizes the go to action of vehicle, and back-moving spring postpones for before handle the homing action drawing after turning to.When forward-reverse by the forward-reverse switch on operating grip, controller output can realize forward-reverse action, in the time of needs plus-minus gear, only need the upshift switch on operating grip, the gearshift action that kickdown switch can be realized vehicle, half electric control operation of this employing mechanical electronic hydraulic control is lever operated comfortable, meet human body operating habit, can greatly improve the handling and comfortableness of human pilot, the reliability and stability that bulldozer half electric control operation handle has itself can make Full Vehicle System more reliable and more stable.

The utility model collection mechanical handling mechanism stable, reliability is high and electric control handle mechanism operation is simple, light, control accuracy high advantage between the two, rationally effectively avoid mechanical handling mechanism structure complexity, handle effort, with low content of technology and electric control handle poor reliability, expensive shortcoming, both advantages are combined together, it is convenient to implement, structure operation is simple, can greatly improve the handling and comfortableness of equipment, reduce the mechanical wear that equipment causes because of artificial gearshift, operating efficiency and the reliability of equipment are improved, stability, effectively reduce handle fault rate.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is sectional view of the present utility model.

The specific embodiment

With reference to Fig. 1, Fig. 2, handle 1 is fixed on the upper end of central axis 6, and back-moving spring 7 is set on central axis 6, and handle 1 end arranges upshift switch 2, kickdown switch 3, forward-reverse switch 4, upshift switch 2 and kickdown switch 3 are self-resetting button switch, and forward-reverse switch 4 is two rocker switchs; Have a mechanical rocking arm 8 that connects connecting rod flexible axle, mechanical rocking arm 8 is fixed on central axis 6 lower ends, and connecting rod flexible axle is the braking in a turn switch of manually controlling.Central axis 6 middle parts arrange wiring board 5, and upshift switch 2, kickdown switch 3, forward-reverse switch 4 are electrically connected with wiring board 5, and wiring board 5 connects output line 9.

Claims

1. a bulldozer half electric control operation handle, handle is fixed on the upper end of central axis, back-moving spring is set on central axis, it is characterized in that: handle (1) end arranges upshift switch (2), kickdown switch (3), forward-reverse switch (4), upshift switch (2) and kickdown switch (3) are self-resetting button switch, and forward-reverse switch (4) is two rocker switchs; Have a mechanical rocking arm (8) that connects connecting rod flexible axle, mechanical rocking arm (8) is fixed on central axis (6) lower end, and connecting rod flexible axle is the braking in a turn switch of manually controlling.

2. bulldozer half electric control operation handle according to claim 1, it is characterized in that: central axis (6) middle part arranges wiring board (5), upshift switch (2), kickdown switch (3), forward-reverse switch (4) are electrically connected with wiring board (5), and wiring board (5) connects output line (9).