CN2302934Y

CN2302934Y - Integrated front bridge toothed wheel and toothed bar type steering gears for four wheel agricultural transportation vehicle

Info

Publication number: CN2302934Y
Application number: CN 97247331
Authority: CN
Inventors: 何家铭
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-09-24
Filing date: 1997-09-24
Publication date: 1999-01-06
Anticipated expiration: 2007-09-24

Abstract

The utility model relates to an integrated front axle gear and rack steering gear for a four wheel agricultural transportation vehicle, adopting an integral front axle and a steering gear for a gear and a rack, wherein, the steering gear comprises a gear and a rack engaged with each other, a draw rod, a left and a right rocking arms and a connecting rod; the front axle and both ends of the connecting rod are hinged with the right and the left rocking arms; the front axle, the connecting rod and the right and the left rocking arms form trapezoidal layout; one end of the draw rod is hinged with the rack and the other end is hinged with one rocking arm; the gear is linked with a steering wheel through a gear shaft. The utility model has the advantages of portable steering operation, low cost, convenient operation and safety increasing.

Description

Whole propons rack-and-gear turns to four-wheel agricultural vehicle

The utility model relates to a kind of agriculture truck, particularly whole propons rack-and-gear four-wheel agricultural vehicle.

In recent years, for adapting to the needs of rural economic development, agriculture truck develops into four-wheel by three-wheel, and the stability of agriculture truck and safety have been improved.At present, four-wheel agricultural vehicle still adopts heavy ball-and-worm steering system or turbine worm deflector, complex structure, operation effort.Though the existing recently four-wheel agricultural vehicle that adopts the rack-and-gear direction device, it is to be used for the independent suspension type propons, this vehicle selling at exorbitant prices, and still difficult at present popularizing in vast rural area pushes away.

The purpose of this utility model provides a kind of whole propons rack-and-gear and turns to its steering operation light and flexible of agricultural four-wheel transport trolley, and simple in structure, and price is low, adapts to present vast rural area and promotes the use of.

The utility model four-wheel agricultural vehicle comprises operator's compartment, trunk, vehicle frame, front-wheel, propons, trailing wheel, back axle, shock absorber, driving engine, fuel tank, transmission device, bearing circle, deflector, said propons is the integral type propons, said deflector is a rack and pinion steering gear, this deflector comprises the intermeshed gear tooth bar, pull bar, left and right sides rocking arm and connecting rod, propons and connecting rod two ends are with hinged with left and right sides rocking arm, four form trapezoidal layout, one end and the tooth bar of pull bar are hinged, the other end and a rocking arm are hinged, and gear is by gear wheel shaft and bearing circle interlock.The driving engine of this transport trolley adopts single cylinder diesel, further cost-cutting.

The utility model four-wheel agricultural vehicle adopts rack and pinion steering gear, and steering operation is light, and it matches with the integral type propons, makes complete vehicle structure simple, and cost reduces.This car fare lattice are low, are convenient to operation again, and safety improves, and adapt to the needs of wide farmers, are convenient to the rural area and promote the use of.

Below in conjunction with description of drawings example structure of the present utility model.

Fig. 1 is the example structure scheme drawing of the utility model four-wheel agricultural vehicle, and Fig. 2 is frame assembly figure.

Fig. 3, the 4th, the annexation scheme drawing of the deflector of the utility model four-wheel agricultural vehicle and preceding sedan-chair.Fig. 4 is that the A of Fig. 3 is to view.

Fig. 5, the 6th, the constructional drawing of pinion and rack.Wherein, Fig. 5 is the B-B section-drawing of Fig. 3, and Fig. 6 is the C-C section-drawing of Fig. 5.

Shown in 1,2, this four-wheel agricultural vehicle comprises operator's compartment 4, bearing circle 3, fuel tank 5, single cylinder diesel 9, vehicle frame 6, pulley transmission mechanism 10, conjuncted back axle 17, whole propons 14, preceding leaf spring shock absorber 8, back leaf spring shock absorber 11, bearing circle 3 is by steering shaft 2, universal-joint 1 (see figure 1) that links to each other with pinion and rack 7, pinion and rack 7 and pull bar 12, left rocking arm 16, right rocking arm 13, connecting rod 15 composition deflector (see figure 2)s.Shown in Fig. 3,4, connecting rod 15, whole propons 14 and left and right

sides rocking arm

16,13 are hinged, form trapezoidal layout, and pinion and rack 7 is hinged by pull bar 12 and right rocking arm 13.From Fig. 5,6 as seen, gear 7-2 and tooth bar 7-1 engagement, tooth bar and pull bar 12 are hinged.When the gear wheel shaft 7-3 that fuses with gear rotated under the bearing circle effect, pinion rack 7-1 was that occurred level moves, and pull bar 12 is affected simultaneously.As shown in Figure 4, when pull bar moved, rocking arm 13, connecting rod 12 swung, and reach the purpose that turns to.

Claims

1. whole propons rack-and-gear turns to four-wheel agricultural vehicle, comprise operator's compartment, trunk, vehicle frame, front-wheel, propons, trailing wheel, back axle, shock absorber, driving engine, fuel tank, transmission device, bearing circle, deflector, it is characterized in that said propons is the integral type propons, said deflector is a rack and pinion steering gear, this deflector comprises the intermeshed gear tooth bar, pull bar, left and right sides rocking arm and connecting rod, propons and connecting rod two ends are with hinged with left and right sides rocking arm, four form trapezoidal layout, one end and the tooth bar of pull bar are hinged, the other end and a rocking arm are hinged, and gear is by gear wheel shaft and bearing circle interlock.

2. according to the whole propons rack-and-gear four-wheel agricultural vehicle of claim 1, it is characterized in that said driving engine is a single cylinder diesel.

3. according to claim 1,2 whole propons rack-and-gear four-wheel agricultural vehicle, it is characterized in that said shock absorber is the leaf spring type shock absorber.