CN2233332Y

CN2233332Y - Miniature walking tractor

Info

Publication number: CN2233332Y
Application number: CN 95232391
Authority: CN
Inventors: 闵祥利; 闵兆恒
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-10-05
Filing date: 1995-10-05
Publication date: 1996-08-21
Anticipated expiration: 2005-10-05

Abstract

The utility model discloses a miniature walking tractor capable of conveniently changing a two-wheel driving mode into a single wheel driving mode, which is characterized in that a final output shaft of a gear box is a hollow shaft with a spline in the inside, the outer surface of one output end of the hollow shaft is provided with a hexagonal shaft which is convenient for connecting with a single wheel, and a two-wheel driving shaft with the spline at the outside is arranged in the final output shaft. A left and a right driving and steering control apparatuses respectively composed of wheel hubs, bearings, an internal gear clutch, an external gear sliding clutch, a steering shifting shaft and a shifting fork body are respectively arranged at the both sides of the two-wheel driving shaft. After the left and the right driving apparatuses can be removed to realize the single wheel drive, so that the utility model can replace the animal power in farming and realize the omnibearing mechanized farming in dry farming.

Description

Miniature walking tractor

The utility model relates to the required miniature walking tractor of a kind of rural area dry land mechanized farming.

The used walker tractor of dry land farming at present mostly is the two-wheel driving, owing to multi-mode operations such as it can be used for ploughing, rotary tillage, making ridge, pressure ground, transportations, so more and more be widely used.But also there is the deficiency that is difficult to overcome in it, and it is subjected to the constraint of conditions such as landform, landforms be different with the kind plant.It is difficult to work under the bigger situation of the gradient, particularly for the intertillage of long-stalked crop, be subjected to the constraint of ridge apart from (cultivated gap between two crops) and cane height, when two, intertilling for three times, if adopt two-wheeled tractor, then will damage cane than high crop, see that thus two-wheeled tractor is difficult to use in the intertillage operation of long-stalked crop, make that a part of peasant has to adopt artificial or animal power farming, also make this two-wheeled tractor during intertilling, become a kind of idle apparatus.If convert the two-wheel driving to single wheel drive, then will address the above problem.But because the trac. that existing two-wheel drives is subjected to the restriction of its structure to be difficult to convert to single wheel drive.

In view of the foregoing, drive, but also can conveniently two-wheel be driven the miniature walking tractor that convert single wheel drive to, solve the problem of the comprehensive mechanized farming of drought-resistant agriculture with this but the purpose of this utility model provides a kind of not only two-wheel.

The purpose of this utility model is achieved in that it comprises the driving engine that places on the frame and change speed gear box and engine power is passed to the belt gear of change speed gear box power intake and by handrail, turn to and handle knob, the steering unit that the variable speed operation handle constitutes, it is characterized in that: the final output shaft of change speed gear box is interior wounded in the battle key, outer end face is the hollow shaft of six square shafts, the two-wheel axle drive shaft that has a male splines is packed into as two ends output axis in the final output shaft, two respectively by wheel hub and spacing sleeve, bearing, the outer steering clutch of the wheel hub that the internal tooth steering clutch constitutes places two-wheel axle drive shaft two ends, at the change speed gear box two ends respectively by a left side, the right side connects dish and deflecting bar, turn to declutch shift shaft, turning to shift fork to connect dish about turning to that the shift fork body constitutes is enclosed within on the two-wheel axle drive shaft, deflecting bar links to each other with turning to handle knob through steering track rod, being located on the two-wheel axle drive shaft and with its external tooth that cooperates that is in axial sliding turns to the internal tooth steering clutch in slip clutch and the outer steering clutch of wheel hub to be meshed, the side that this external tooth turns to slip clutch with turn to shift fork to meet Pan Taozhong to turn to the shift fork body to link to each other, opposite side links to each other with reseting pressuring spring.When the need two-wheel drives, on the wheel hub at the two-wheel axle drive shaft two ends that two wheels can be placed in.When the need single wheel drive, will place wheel hub on the two-wheel axle drive shaft to turn to clutch outward earlier and left and rightly turn to shift fork to connect the dish cover and the two-wheel axle drive shaft is pulled down, then single-wheel is placed on the final output shaft.

The utility model has the advantages that: both can realize that two-wheel drives, can realize single wheel drive again, thereby satisfy the condition of the comprehensive mechanized farming of drought-resistant agriculture, and the operation of two-wheel driving conversion single wheel drive is comparatively convenient.

Below in conjunction with accompanying drawing the utility model is explained.

Fig. 1 is that two-wheel drives the walker tractor structural representation.

Fig. 2 is the birds-eye view of Fig. 1.

Fig. 3 is a single wheel drive walker tractor structural representation.

Fig. 4 is the birds-eye view of Fig. 3.

Fig. 5 is that two-wheel drives assembly assembling scheme drawing.

Fig. 6 is A among Fig. 5-A view.

By accompanying drawing as can be known, the utility model mainly comprises driving engine 1 and the change speed gear box 3 that places on the frame 2, driving engine is given change speed gear box 3 through the belt gear 4 that belt pulley, belt constitute with transmission of power, and become, slow down and pass to final output shaft 15 through change speed gear box, this final output shaft 15 is hollow shafts of end output, and it stretches out the casing exterior outside surface and is six square shafts, is convenient to be connected to a fixed with six square shaft holes of single driven wheel 35, form the single wheel drive form, finish the different work of single wheel drive.Two-wheel axle drive shaft 16 is outer wounded in the battle strong, and it is packed in the final output shaft 15 of interior wounded in the battle key, and is fixed by left-handed jam nut 27, has formed the axle drive shaft of two ends outputs.Left and right connect dish 17,17 ' respectively and deflecting bar 20,20 ', turn to declutch shift shaft 29,29 ' fixed cover 31,31 ', turn to shift fork body 21,21 ' formations left and rightly turn to shift fork to connect the dish cover minute to be enclosed within on the two-wheel axle drive shaft 16 that is positioned at the casing both sides.The left and right dish that connects 17,17 ' respectively is fixed by bolts to the gear box both sides, with the deflecting

bar

20,20 that turns to declutch shift shaft 29,29 ' link to each other ' through steering track rod 37,37 ' with turn to handle knob 12,12 ' link to each other.By wheel hub 23,23 ', spacing sleeve 24,24 ', bearing 25,25 ' and internal tooth steering clutch 22,22 ' the be installed together outer steering clutch of two wheel hubs of forming two-wheel axle drive shaft 16 two ends that are placed in.Turn to slip clutch 19 1 sides to link to each other with the external tooth on turning to declutch shift shaft 29 links to each other turn to shift fork body 21 and be located at two-wheel axle drive shaft 16, external tooth turns to the opposite side of slip clutch 19 to link to each other with turning to stage clip 18.When the need two-wheel drives, two wheels 7 are placed on the wheel hub of two ends.Left-handed turning to the time, by turning to the 12 drive steering track rods 37 of handling knob, pulling force is passed to deflecting bar 20, converting the torsion drive to by this deflecting bar turns to declutch shift shaft 29 to rotate, and drive with this and to turn to shift fork body 21 to turn to slip clutch to slide to the casing direction external tooth along the spline on the two-wheel axle drive shaft, break away from the internal tooth steering clutch 22 that is meshed with it, turn to stage clip 18 to be in compressive state this moment, two-wheel axle drive shaft 16 is along with the interior interplanting dry run of bearing 25, this moment, the drive wheel in left side was in disengaged position (not driving), and the drive wheel on right side is still driving, thereby realizes turnon left, unclamps to turn to and handles knob, external tooth turns to slip clutch 19 to reset under the effect of the pressure that turns to stage clip 18, be that it is meshed with internal tooth steering clutch 22, connect power and make the left side drive wheel begin to drive, make complete machine recover linear drives.When the need single wheel drive, pull down left-hand axis skull 26 earlier, then will be by left wheel hub 23, spacing sleeve 24, internal tooth steering clutch 22, the outer steering clutch of the left wheel hub that bearing 25 constitutes is transferred to left driving wheel 7, last dish 17 three bolts that are connected with change speed gear box 3 that again a left side connect are pulled down, make it and to connect dish 17 and deflecting bar 20 by a left side, turn to declutch shift shaft 29, the left steering shift fork that turns to shift fork body 21 to constitute connects the dish cover and turns to slip clutch 19 together with external tooth, turn to stage clip 18 to take out together, expose left-handed jam nut 27, it is pulled down, the actuating device on right side need not be torn open step by step, only need pull down connect change speed gear box 3 and right connect dish 17 ' bolt of rear end plate, the actuating device and the two-wheel axle drive shaft 16 on right side can be pulled down together, exposed six square shafts that final output shaft 15 1 ends are exported this moment, single wheel drive wheel 35 has been installed on six square shafts can forms single wheel drive.

Sequence number

8,9,10,11,13,14 in the accompanying drawing is respectively the manipulation machine Variable speed operation handle in the structure, clutch operating handle, horizontal handrail, throttle control handle and a left side, Right handrail. Sequence number 6 is for articulating the draw bail of farm implements and hinged trailer.

Claims

1, a kind of miniature walking tractor, it comprises the driving engine that places on the frame and change speed gear box and engine power is passed to the belt gear of change speed gear box power intake and by handrail, turn to and handle knob, the steering unit that the variable speed operation handle constitutes, it is characterized in that: the final output shaft of change speed gear box is interior wounded in the battle key, outer end face is the hollow shaft of six square shafts, the two-wheel axle drive shaft that has a male splines is packed into as two ends output axis in the final output shaft, two respectively by wheel hub and spacing sleeve, bearing, the outer steering clutch of the wheel hub that the internal tooth steering clutch constitutes places two-wheel axle drive shaft two ends, at the change speed gear box two ends respectively by a left side, the right side connects dish and deflecting bar, turn to declutch shift shaft, turning to shift fork to connect dish about turning to that the shift fork body constitutes is enclosed within on the two-wheel axle drive shaft, deflecting bar links to each other with turning to handle knob through steering track rod, being located on the two-wheel axle drive shaft and with its external tooth that cooperates that is in axial sliding turns to the internal tooth steering clutch in slip clutch and the outer steering clutch of wheel hub to be meshed, the side that this external tooth turns to slip clutch with turn to shift fork to meet Pan Taozhong to turn to the shift fork body to link to each other, opposite side links to each other with reseting pressuring spring.