CN202806374U

CN202806374U - Front and rear wheel driven three-wheel miniature tractor

Info

Publication number: CN202806374U
Application number: CN 201220310279
Authority: CN
Inventors: 洪健
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-20
Filing date: 2012-06-20
Publication date: 2013-03-20
Anticipated expiration: 2022-06-20

Abstract

The utility model relates to a front and rear wheel driven three-wheel miniature tractor comprising a chassis, a seat, a cargo compartment, a diesel engine, a speed-changing gearbox, a direction device, tyres and the like, wherein the shapes and the structures of the chassis, the seat, the cargo compartment, the diesel engine, the direction device, the tyres and the like are as same as the shapes and the structures of the common three-wheel miniature tractor; and a front driving device of the speed-changing gearbox is basically as same as the shape, the structure and the assembling condition of each part of the speed-changing gearbox of the front wheel driven three-wheel miniature tractor. The front and rear wheel driven three-wheel miniature tractor is characterized in that a rear driving transmission gear 17 is mounted at one end of the inner side of the box of a front driving transmission shaft 2; the gear is meshed with a carrier gear 13 of a carrier gear shaft 14 mounted behind the gear; the carrier gear is meshed with a rear driving gear-engaging gear 12 of a gear-engaging position sheathed on a rear driving transmission shaft 11; a steering bevel gear 9 is mounted at the middle section of the rear driving transmission shaft; and a bevel gear 10 matched with the steering bevel gear 9 is meshed with the steering bevel gear 9, is backwards connected with a rear wheel transmission connecting rod and a group of bevel gears and finally drives rear wheels. The front and rear wheel driven three-wheel miniature tractor can singly drive the front wheel or the rear wheels, also can drive the front wheel and the rear wheels simultaneously, is convenient and can travel on the road with poor road condition.

Description

The three-wheel mini tractor that a kind of front and back wheel drives

Technical field:

The utility model relates to the farm machinery manufacturing technology, and is concrete relevant with agricultural tricycle mini tractor manufacturing technology.

Background technology:

Traditional agricultural tricycle mini tractor only has f-w-d, and trailing wheel can not drive, and this just causes it to use the many troubles of generation.Because agricultural mini tractor is to use in the more abominable situation in rural area mostly, its road conditions are generally poor, mostly be rugged, such as rainy day, muddy water mud needs only front-wheel and is trapped in the mud especially, standard is to cannot move, must asking someone to push away by chaufeur, just can solve predicament, is hell to pay really.

The utility model content:

The purpose of this utility model is to provide a kind of front and back wheel not only can drive separately, but also can drive simultaneously the Miniature three-wheel tractor that travels to vast peasant, the technical barrier that can conveniently travel, conveniently haul goods and make things convenient for other to use in the relatively poor situation of road conditions to solve such loom.

The technical solution of the utility model is: shape, the structure of the parts such as the chassis of the shape of the parts such as the chassis of this three-wheel mini tractor, car, cargo hold, diesel engine, direction device, tire, structure and installation and common mini tractor, car, cargo hold, diesel engine, direction device tire and assemble identically, difference is its speed-changing gear box.In this speed-change gear box, its front drive device is basic identical with shape and structure and the assembling situation of each parts of the speed-change gear box of three-wheel mini tractor that generally can only f-w-d, they are by casing, power input shaft, forerunner's transmission shaft, reverse shaft, large, medium and small power shift gear, large, medium and small fork shift gear, the size reverse gear, transmission gear and the forerunner gear of putting into gear that reverses gear forms, by different fork shifts, little fork shift gear can be realized high-speed driving with large power shift gear engagement, middle fork shift gear can realize that middling speed drives with middle power shift gear engagement, and large fork shift gear can be realized driven at low speed with little power shift gear engagement; Simultaneously, large fork shift gear can also realize that with reversing gear the transmission gear engagement low speed reverses gear again with little reverse gear engagement, large reverse gear; Forerunner's gear of putting into gear is housed in the casing outer end of forerunner's transmission shaft, when the forerunner puts into gear one group of transmission gear engagement of it and transmission front-wheel and transmission they, when the forerunner put into gear geared neutral, front-wheel can't drive; All these is identical with the corresponding component of the speed-change gear box of the three-wheel mini tractor of existing single front wheel driving.In order to drive the loom trailing wheel, box inside one end at forerunner's transmission shaft is equipped with a rear-guard transmission gear, this gear is meshed with carrier gear on the bridge gear shaft that is contained in its rear side, and put in place the rear-guard of (putting into gear) of this carrier gear and fork shift on being sleeved on the rear-guard transmission shaft puts into gear that gear is meshed and the transmission rear-drive transmission shaft, then be equipped with one in the stage casing of rear-guard transmission shaft and turn to bevel gear, its supporting bevel gear is with its engagement and be connected backward the rear wheel drive connecting rod and one group of bevel gear and last transmission trailing wheel.

The utlity model has following useful effectiveness:

1, can drive or independent back-wheel drive by single front wheel.In normal road conditions situation, can with after the gear of putting into gear push Neutral Position, both can realize that front-wheel drives separately; Perhaps will before put into gear gear plectrum to Neutral Position, can realize that then trailing wheel drives separately, can save oil consumption like this;

2, can front and back wheel drive simultaneously.When loom is trapped in mire, disconnected ditch, then front and back wheel can be put into gear simultaneously, make front and back wheel have an effect simultaneously, jointly drive, make the trac. predicament of getting off quickly, so very conveniently in the poor situation of road conditions, use.

3, the interpolation parts are few, and it is few to increase productive costs; The while compact conformation, volume is little, stable operation is reliable.

Description of drawings:

Accompanying drawing 1, the inboard TV structure scheme drawing of speed-change gear box of the present utility model;

Plan structure scheme drawing in accompanying drawing 2, the speed-change gear box of the present utility model.

Among the figure: 1, casing, 2, forerunner's transmission shaft, 3, forerunner's gear of putting into gear, 4, the transmission gear that reverses gear, 5, large reverse gear, 6, reverse shaft, 7, little reverse gear, 8, support plate, 9, turn to bevel gear, 10, supporting bevel gear, 11, rear-guard transmission shaft, 12, the rear-guard gear of putting into gear, 13, carrier gear, 14, bridge gear shaft, 15, power input shaft, 16, middle power shift gear, 17, the rear-guard transmission gear, 18, in dial the gear gear, 19, little fork shift gear, 20, large power shift gear, 21, little power shift gear, 22, large fork shift gear

The specific embodiment:

The chassis of this three-wheel mini tractor, car, cargo hold, etc. parts oneself processing; The parts such as its diesel engine, direction device, tire are standard universal spare, and they can solve by buying.The main correction of this loom concentrates on speed-change gear box, and this speed-change gear box is like this design and makes:

It at first is the design of casing 1, because tank ends plate top only fills a power input shaft 15 and only has toothrow wheel, and casing one end plate below will fill three

axles

2,5,11 side by side, its another end plate below will fill three

axles

2,14,11 and three toothrows wheel side by side, so casing should be up-narrow and down-wide, for the ease of processing, we are designed to the step casing with it.End plate each boring of top on casing both sides has an axis hole, and there are three axis holes its end plate below, both sides then each boring, and the axis hole of its suit reverse shaft does not need mutual corresponding with the axis hole position of suit bridge gear shaft.Power input shaft 15 is assemblied in the end plate top axis hole on casing both sides, the two ends of forerunner's transmission shaft 2, rear-guard transmission shaft 11 are set in the end plate axis hole of both sides, casing end plate below, 14 of bridge gear shafts are fixed on nut in the axis hole of centre, casing end plate below, and 6 of reverses shaft are contained between the axis hole of the support plate 8 in another end plate below intermediate shaft hole of casing and the case.Part is equipped with respectively large, medium and small three

power shift gears

20,16,21 and transmission gears 4 that reverse gear in the case of its power input shaft 15; Large, medium and small three

fork shift gears

22,18,19 and final drive gears 17 are housed on the case inner segment of its forerunner's transmission shaft; It stretches out and then is set with the forerunner gear 3 of putting into gear on the outer termination of case, and this gear is the transmission front-wheel by one group of forerunner's transmission gear.For large, medium and small three power shift gears 20 on the case internally-powered input shaft, 16,21 and forerunner's transmission shaft on large, medium and small three

fork shift gears

22,18,19, by stirring respectively the fork shift gear, can make respectively little fork shift gear 19 and large power shift gear 20 engagements, middle fork shift gear 18 and middle power shift gear 16 engagements, large fork shift gear 22 and little power shift gear 21 engagements, thus realize high, medium and low three kinds of different actuating speed conversion.Simultaneously, on bridge gear shaft 14, corresponding to the position of rear-guard transmission gear 17 carrier gear 13 is housed and is engaged with; At rear-guard transmission shaft 11 put into gear gear 12 and turn to bevel gear 9 of rear-guard is housed, rear-guard is put into gear gear 12 when rear-guard is put into gear and the carrier gear engagement, its turn to bevel gear 9 mesh backward and transmission one supporting bevel gear 10 and by behind this gear connection rear-guard drive link and the bar another to the bevel gear group and transmission loom trailing wheel.Big or small reverse gear 5 and 7 are housed, transmission gear 4 engagements of reversing gear on its large reverse gear 5 and the power input shaft on the reverse shaft 6; When needs reverse gear, large fork shift gear on forerunner's transmission shaft 22 by dial come with reverse gear shaft 6 on 7 engagements of little reverse gear and reverse deceleration transmission forerunner transmission shaft 2, thereby realize the front-wheel of loom or trailing wheel is moveed backward separately or front-wheel and trailing wheel are moveed backward simultaneously.

For the converter speed ratio that obtains, the number of teeth of each gear is designed in this speed-change gear box: gear 3:16 tooth, gear 5:31 tooth, gear 6:15 tooth, gear 9:13 tooth, gear 10:17 tooth, gear 12:23 tooth, gear 13:24 tooth, gear 16:27 tooth, gear 17:33 tooth, gear 18:28 tooth, gear 19:21 tooth, gear 20:34 tooth, gear 21:15 tooth, gear 22:40 tooth.

When this speed-change gear box of processing and fabricating, in order to guarantee the reliable and safety of transmission gear shift, the thickness of its casing steel plate, employing be the 17mm plate iron.In order to reduce friction, between axis hole and axle, add bearing.In order to guarantee the load-carrying capacity of rotating shaft, the axostylus axostyle material generally selects 40cr Chrome steel to do.Various gears are selected the product of the producer of quality special production gear really up to the mark.

Claims

1. the three-wheel mini tractor that drives of a front and back wheel, it is characterized in that: box inside one end at forerunner's transmission shaft (2) is equipped with a rear-guard transmission gear (17), this gear is meshed with carrier gear (13) on the bridge gear shaft that is contained in its rear side (14), and this carrier gear with put into gear be sleeved on gear (12) engagement of putting into gear of rear-guard on the rear-guard transmission shaft (11), then be equipped with one in the stage casing of rear-guard transmission shaft and turn to bevel gear (9), its supporting bevel gear (10) is with its engagement and be connected backward rear wheel drive connecting rod and one group of bevel gear transmission trailing wheel.