CN209390698U

CN209390698U - Bridge mechanism after a kind of cotton picker

Info

Publication number: CN209390698U
Application number: CN201822036412.7U
Authority: CN
Inventors: 吴和平; 杨杰; 刘永超; 韩熊冰; 彭保龙
Original assignee: Xingguang Agricultural Machine Co Ltd
Current assignee: Xingguang Agricultural Machine Co Ltd
Priority date: 2018-12-06
Filing date: 2018-12-06
Publication date: 2019-09-17
Anticipated expiration: 2028-12-06

Abstract

Bridge mechanism after a kind of cotton picker, belongs to cotton picker technical field.The utility model includes two rear tyres, and two rear tyres are in tilted upward and tilt forward and back form.The utility model steering is flexible and efficient, and can effectively avoid the problem that dead and pitfall.

Description

Bridge mechanism after a kind of cotton picker

Technical field

The utility model relates to bridge mechanisms after cotton picker technical field more particularly to a kind of cotton picker.

Background technique

The cotton planting range in China is quite extensive, and the picking of former cotton also relies primarily on manpower, large labor intensity and Inefficiency.With the development of agricultural machinery, the popularity of cotton picker is higher and higher, and cotton picking function effectively improves the speed of cotton picking Degree, lightens one's labor, increases economic efficiency.

Wherein, the rear axle of cotton picker plays the role of full-vehicle steering, is to ensure that the important feature that vehicle works normally.It is existing Some cotton picker rear tyres be usually it is perpendicular to the ground, this causes the contact area on tire and ground larger, rubbing when steering It is bigger to wipe resistance, turns to not smooth flexible enough.And two tires be it is parallel, it is not dead that this is easy tire at ridge, It is easy in salt-soda soil operating condition sinking pit.

Such as application No. is 201610223265.7 Chinese utility model applications to disclose a kind of cotton picker rack and cotton picking Machine, the rear axle including mainframe and positioned at mainframe rear portion are connected between rear axle and mainframe by support member, after described Fire water box is equipped between bridge, mainframe and support member, in the side wall of fire water box it is at least a part of by support member or A part composition of support member.Its rear axle tire remains traditional horizontal vertical structure, is easy to happen the above problem and shadow Ring the working efficiency of cotton picker.

Utility model content

Purpose of the utility model is to solve the above-mentioned problems of the prior art, provide a kind of cotton picker rear axle machine Structure, steering is flexible and efficient, and can effectively avoid the problem that dead and pitfall.

The purpose of this utility model is achieved through the following technical solutions:

Bridge mechanism after a kind of cotton picker, including two rear tyres, two rear tyres are in tilted upward and tilt forward and back Form.

The utility model tilted upward and tilts forward and back setting by carrying out rear tyre simultaneously, so that tire and ground Contact area greatly reduces, so that tire and ground form bumper angle, meets ridge and is not easy not extremely, and be not easy in salt-soda soil work Condition sinking pit.

Preferred as the utility model, the upper end spacing of two rear tyres is greater than lower end spacing.

Preferred as the utility model, the front end spacing of two rear tyres is less than rear end spacing.

It is preferred as the utility model, further include rear axle crossbeam, set on the rear axle crossbeam both ends vertical shaft casing, be set to Vertical shaft, the rear-axle rocker arm of the connection vertical shaft in the vertical shaft casing, the interlocking lever for connecting two rear-axle rocker arms, connection The steering cylinder of the rear axle crossbeam and a rear-axle rocker arm, the rear tyre connect the vertical shaft.

Preferred as the utility model, the hub spindle of the vertical shaft and the rear tyre is interference fitted, and is welded in bottom Form soldering member.

Preferred as the utility model, the rear-axle rocker arm is connect by bolt with the soldering member, and is set between the two There is positioning pin.

Preferred as the utility model, the interlocking lever is equipped with length adjustment mechanism.

It is preferred as the utility model, the length adjustment mechanism include casing, two screw rods in described sleeve pipe, The adjusting nut of one end outside described sleeve pipe is in set on the screw rod.

The utility model has the advantages that: by being obliquely installed to two tires of rear bridge mechanism so that tire and ground it Between form bumper angle, meet ridge and be not easy not dead, rotation flexibly, is especially not easy pitfall under the operating condition of the salt-soda soils such as Xinjiang.

Detailed description of the invention

Fig. 1 is a kind of main view of embodiment of the utility model；

Fig. 2 is the top view of the utility model.

Specific embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Bridge mechanism after a kind of cotton picker, including rear axle crossbeam a33, the vertical shaft casing set on the both ends the rear axle crossbeam a33 A34, the vertical shaft in the vertical shaft casing a34, the rear tyre a32 of the connection vertical shaft, the connection vertical shaft rear axle shake Arm a35, the interlocking lever a36 for connecting two rear-axle rocker arm a35, the connection rear axle crossbeam a33 and a rear axle shake The steering cylinder a37 of arm a35.Wherein, the hub spindle of vertical shaft and rear tyre a32 are interference fitted, and weld to form soldering in bottom Part a39, and rear-axle rocker arm a35 connect by bolt with soldering member a39, and guarantees cooperation precision by positioning pin, compare with Past spline connection structure, this structure manufacture and assemble more convenient, and intensity and precision are suitable.When work, steering cylinder a37 It stretches to drive the rear-axle rocker arm a35 of side to turn to, and the rear-axle rocker arm of two sides is interlocked by interlocking lever a36, the rear axle of two sides Rocker arm drives the vertical shaft rotating of two sides respectively, and vertical shaft rotating drives rear tyre a32 to turn to.This structure is turned using an oil cylinder It is high to, synchronism, it reduces costs simultaneously, the both ends steering cylinder a37 are equipped with oscillating bearing, with anti-jamming, guarantee it flexibly Property.

It is known that front axle mechanism is responsible for that vehicle is driven to advance, so the diameter of front tyre and the contact area with earth's surface It is larger, to guarantee the stability advanced.Then bridge mechanism is responsible for steering, so the diameter of rear tyre a32 and the contact with earth's surface Area is smaller, to improve the flexibility of its steering.But the diameter and volume of rear tyre a32 are smaller, then it is easier in ridge etc. It is not dead at position, or pitfall occurs under the operating condition of salt-soda soil.The utility model passes through two rear tyre a32 to rear bridge mechanism Inclined design, efficiently avoid the above problem.The specific inclined direction of rear tyre a32 is that two rear tyre a32 are in eight Font, i.e., the distance between two upper ends rear tyre a32 are larger, and the distance between lower end is smaller；And two rear tyre a32 In front and back splayed, i.e., the distance between two front ends rear tyre a32 are smaller, and the distance between rear end is larger.The structure makes It obtains rear tyre a32 and ground forms a natural bumper angle, meet ridge and be not easy not extremely, and under the operating condition of the salt-soda soils such as Xinjiang Also it is not easy pitfall.

In addition, for the ease of adjusting the front and rear tilt angle of rear tyre, the interlocking lever is equipped with length adjustment mechanism, packet It includes casing a40, two screw rod a41 in described sleeve pipe a40, be in one end outside described sleeve pipe a40 set on the screw rod a41 Adjusting nut a42.In use, need to only adjust the length that screw rod stretches out casing by adjusting nut, that is, whole company is adjusted The length of lever.

The preferable specific embodiment of the above, only the utility model, the specific embodiment are practical based on this A kind of implementation under novel general idea, and the protection scope of the utility model is not limited thereto, it is any to be familiar with sheet Within the technical scope disclosed by the utility model, any changes or substitutions that can be easily thought of by those skilled in the art, should all contain Lid is within the protection scope of the utility model.Therefore, the protection scope of the utility model should be with the protection of claims Subject to range.

Claims

1. bridge mechanism after a kind of cotton picker, including two rear tyres, which is characterized in that further include rear axle crossbeam, be set to it is described after The vertical shaft casing at bridge crossbeam both ends, the vertical shaft in the vertical shaft casing, the rear-axle rocker arm of the connection vertical shaft, connection two The interlocking lever of the rear-axle rocker arm, the steering cylinder for connecting the rear axle crossbeam and a rear-axle rocker arm, the rear tyre The vertical shaft is connected, two rear tyres are in tilted upward and tilt forward and back form.

2. bridge mechanism after cotton picker according to claim 1, which is characterized in that the upper end spacing of two rear tyres is big In lower end spacing.

3. bridge mechanism after cotton picker according to claim 1 or 2, which is characterized in that between the front end of two rear tyres Away from less than rear end spacing.

4. bridge mechanism after cotton picker according to claim 1, which is characterized in that the wheel hub of the vertical shaft and the rear tyre Axis interference fit, and weld to form soldering member in bottom.

5. bridge mechanism after cotton picker according to claim 4, which is characterized in that the rear-axle rocker arm by bolt with it is described Soldering member connection, and it is equipped with positioning pin between the two.

6. bridge mechanism after cotton picker according to claim 1, which is characterized in that the interlocking lever is equipped with length adjustment machine Structure.

7. bridge mechanism after cotton picker according to claim 6, which is characterized in that the length adjustment mechanism include casing, Two screw rods in described sleeve pipe, the adjusting nut that one end outside described sleeve pipe is in set on the screw rod.