CN2317149Y

CN2317149Y - Hand crawler tractor

Info

Publication number: CN2317149Y
Application number: CN 98211834
Authority: CN
Inventors: 周明和
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-02-28
Filing date: 1998-02-28
Publication date: 1999-05-05
Anticipated expiration: 2008-02-28

Abstract

The utility model relates to a hand-hold crawler tractor, which belongs to an agricultural machine. The walking part of existing hand-hold tractors is rubber type and is easy for sinking and slipping when tilling in paddy field and muddy ground, and the existing hand-hold tractor can not reach the requirements of deep tillage when tilling in upland field. The utility model is added with a set of crawler walking device on the basis of the original hand-hold rubber-tire tractor, so the utility model has multiple functions. The walking device is fixed on a driving shaft by a driving wheel, a front and a back thrust wheels via a suspension frame and a suspension frame column, and the walking device can accomplish walking motion via a crawler. Therefore, the utility model is suitable for deep tillage operation in paddy field, muddy field and upland field.

Description

Hand steered track type tractor

The utility model belongs to field machine, is a kind of hand steered track type tractor.

The crawler body of existing walker tractor is a rubber wheel type, though maneuvering performance is good, the comprehensive application performance is strong, but because tire-contact area is little, in the paddy field with flush go up farming and easily sink and skid, the covering performance of digging when the dry land farming is bad, can not reach the requirement of ploughing deeply.

The purpose of this utility model is: on the basis of former hand steered rubber-tyred tractor, increase by a cover track unit, replace original rubber tire, become a tractor serves several purposes, because crawler belt and contact area of ground are big, overcome outside the deficiency of the prior art, solved sagging the skidding on ground, paddy field, be suitable for to dry land the deep ploughing operation.

The purpose of this utility model realizes in the following manner: a kind of hand steered crawler tractor, be to increase by the rubber tire walker tractor cover track unit is installed, it is characterized in that drive wheel 1 is installed on the axle drive shaft 2 of walker tractor, the even branch gear teeth 3 on its excircle, the gear teeth 3 drive osed top metallic bond crawler belts 4 and are centered around on preceding caterpillar wheel 5 and the back caterpillar wheel 6.

Hand steered track type tractor is characterized in that having two suspension pillar 10 1 ends to be fixed on the suspension crossbeam 11 with nut respectively, and the other end uses bearing fixing on axle drive shaft 2, suspension pillar 10 and suspension 8 journey equilateral triangles.

Hand steered track type tractor, caterpillar wheel 5 is connected on the suspension 8 by slide block 9 and suspended rail before it is characterized in that, and back caterpillar wheel 6 is fixed on the suspension 8 by bearing seat 7.

Hand steered track type tractor, it is characterized in that slide block 9 connects with guiding fork 12, the rear end of guiding fork 12 is with the fixing adjustment nut 13 of stop screw, one end of screw rod 14 is screwed on the nut 13, the other end inserts in the hole of fixing spring seat 15, recoil spring 16 is housed on the screw rod 14, and recoil spring 16 is bearing between spring perch 15 and the back plate 18, nut 17 positions of fixed support plate 18 on screw rod 14.

The utility model compared with prior art has following advantage: because crawler belt and contact area of ground are big, be difficult for sinking and skidding, be suitable for ground, paddy field, operation on humidity, the pory field, and the deep ploughing that is suitable for turning up the soil.This machine running gear has compact conformation, and volume is little, installation, convenient disassembly, and simple to operate, the comprehensive application performance is good.

Description of drawings: Fig. 1 is hand steered track type tractor contour structures scheme drawing; Fig. 2 is hand steered track type tractor running gear plan structure scheme drawing; Fig. 3 is hand steered track type tractor tensioning device structure scheme drawing.More than among each figure: caterpillar wheel, 7-bearing seat, 8-suspension, 9-slide block, 10-suspension pillar, 11-suspension crossbeam, 12-guiding fork, 13-adjustment nut, 14-screw rod, 15-spring perch, 16-recoil spring, 17-nut, 18-back plate behind caterpillar wheel, the 6-before 1-drive wheel, 2-axle drive shaft, the 3-gear teeth, 4-crawler belt, the 5-.

The utility model is described in further detail in conjunction with the accompanying drawings: the rubber tire of existing walker tractor is disassembled, the drive wheel 1 of the mounting strap gear teeth 3 on axle drive shaft 2, on axle drive shaft 2, use two suspension pillars 10 of bearing fixing, the other end is fixed on the suspension crossbeam 11 with nut respectively, it is fixing that the front end of suspension 8 has preceding caterpillar wheel 5 also can claim track adjusting wheel to pass through slide block 9, and back caterpillar wheel 6 usefulness bearing seats 7 are fixed on the suspension 8.

Preceding caterpillar wheel 5 claims track adjusting wheel again, cover the band travel direction in order to guiding, can prevent the horizontal landing of crawler belt, tightening device is used for making crawler belt to keep certain degree of tension, the suffered impulse force of caterpillar wheel 5 before relaxing, track tension can be adjusted with nut 13, recoil spring 16 predetermincd tensions are adjusted with nut 17, caterpillar wheel 5 rotates backward before when crawler belt 4 runs into obstacle, the residence is moved behind screw rod to fork 12, and compression recoil spring 16 is to relax the suffered impact of crawler belt, after clearing the jumps, under the recoil spring effect, preceding caterpillar wheel is return just.

Claims

1. hand steered track type tractor, be to increase by the rubber tire walker tractor cover track unit is installed, it is characterized in that drive wheel [1] is installed on the axle drive shaft [2] of walker tractor, even branch's gear teeth [3] on its excircle, the gear teeth [3] drive osed top metallic bond crawler belts [4] and are centered around on preceding caterpillar wheel [5] and the back caterpillar wheel [6].

2. a kind of hand steered track type tractor according to claim 1, it is characterized in that having two suspension pillars [10] one ends to be fixed on the suspension crossbeam [11] with nut respectively, the other end uses bearing fixing on axle drive shaft [2], suspension pillar [10] and suspension [8] journey equilateral triangle.

3. a kind of hand steered track type tractor according to claim 1 and 2 is characterized in that preceding caterpillar wheel [5] is connected on the suspension [8] by slide block [9] and suspended rail, and back caterpillar wheel [6] is fixed on the suspension [8] by bearing seat [7].

4. a kind of hand steered track type tractor according to claim 1 and 2, it is characterized in that slide block [9] connects with guiding fork [12], the rear end of guiding fork [12] is with the fixing adjustment nut [13] of stop screw, one end of screw rod [14] is screwed on the nut [13], the other end inserts in the hole of fixing spring seat [15], recoil spring [16] is housed on the screw rod [14], and recoil spring [16] is bearing between spring perch [15] and the back plate [18], the position of nut [17] fixed support plate [18] on screw rod [14].