CN203078312U - Front-and-rear four-wheel drive tractor with single gearbox - Google Patents
Front-and-rear four-wheel drive tractor with single gearbox Download PDFInfo
- Publication number
- CN203078312U CN203078312U CN 201220722127 CN201220722127U CN203078312U CN 203078312 U CN203078312 U CN 203078312U CN 201220722127 CN201220722127 CN 201220722127 CN 201220722127 U CN201220722127 U CN 201220722127U CN 203078312 U CN203078312 U CN 203078312U
- Authority
- CN
- China
- Prior art keywords
- axle
- gear
- wheel
- drive
- change speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The utility model discloses a front-and-rear four-wheel drive tractor with a single gearbox. According to the front-and-rear four-wheel drive tractor with the single gearbox, just one gearbox needs to be operated for achieving shift between front-wheel individual drive and front-wheel and rear-wheel identical-gear drive. A synchronous output gear is arranged on a traditional gearbox II shaft, a VIII shaft is arranged at the same time and provided with a switching gear and a rear output gear, and therefore two drive modes of front-wheel individual drive and front-wheel and rear-wheel identical-gear drive can be achieved. The front-and-rear four-wheel drive tractor with the single gearbox solves the problems that a common tractor is poor in grade ability, tires slip under the loading conditions and parts are damaged due to desynchronized gears, and is especially suitable for being used under severe environment of mountainous areas, sloping fields, forestry, pasture, roadless areas and the like.
Description
Technical field
The utility model relates to a kind of trac., specifically, relates to a kind of single change speed gear box front and back four-wheel drive tractor.
Background technology
The small farm trac. that the most generally use in China rural area is to improve development and next four-wheel transport trolley from walker tractor, this trac. often has only f-w-d, travels the skidding that causes inadequately because of the front-wheel tractive force very easily takes place when the big road of muddy, uneven, hollow, the gradient.At these problems, the remodeling product that has occurred the farm tractor of some at present, it mainly improves is to compartment trailing wheel output walking power from the facility output shaft of traditional change speed gear box, have that front-wheel independent drive, front and back wheel drive simultaneously, three kinds of patterns of trailing wheel independent drive, the driver selects drive pattern according to concrete road conditions, has improved the driveability of this small farm transport trolley at complex-terrain.But its change speed gear box generally is divided into main-gear box that drives front-wheel and the auxiliary gearbox that drives trailing wheel, the conversion of gear needs two change speed gear boxs to cooperate together just and can finish, if the trac. of this drive mechanism is hung wrong retaining when gearshift, or a certain change speed gear box do not hang retaining just can form before and after gear asynchronous, cause engine off, even cause damage.
At present, we retrieve some open source literatures about trac., for example:
1. Chinese patent application numbers 200910013612.3, open day on June 1st, 2009, this application case discloses a kind of 4-wheel driven articulated tractor trucks, it comprises frame and back axle assembly, driving engine, power-transfer clutch, hydraulic steering gear and front axle assy are installed on frame, and front axle assy comprises the propons case, is connected with main-gear box on the propons case, be connected with the transfer change speed gear box on the main-gear box, the transfer change speed gear box is provided with transfer change speed gear box power take-off shaft; Back axle assembly comprises wagon box and rear axle shaft, and the back axle Transaxle is installed on the rear axle shaft, is in transmission connection by universal drive shaft between back axle Transaxle and the transfer change speed gear box power take-off shaft.Its weak point is: unpowered separator box between rear propeller shaft and the auxiliary gear box, can't obtain the f-w-d pattern, and field of application is less.
Summary of the invention
At the shortcoming of prior art, the purpose of this utility model provides the single change speed gear box front and back four-wheel drive tractor that a kind of front-wheel independent drive, front-wheel and the synchronously driven gearshift of trailing wheel only need be operated a change speed gear box.
For achieving the above object, the utility model is realized by following scheme:
Four-wheel drive tractor before and after a kind of single change speed gear box, comprise vehicle body, be installed in the front-wheel of body forward structure, be installed in the trailing wheel of body tail, be installed on the vehicle body and the driving engine of transferring power successively, belt, power-transfer clutch, change speed gear box, auxiliary gear box, front propeller shaft, rear propeller shaft, rear-guard bridge bag, described change speed gear box comprises the I axle of transferring power successively, the II axle, the III axle, the IV axle, the V axle, the VI axle, VII axle and the transmission gear on each thereof, described change speed gear box also is provided with the VIII axle, the VIII axle is provided with change gear and the synchronous output gear or the engagement of constant speed output gear that are installed on the II axle, described synchronous output gear is connected with the II axle by bearing, described change gear is positioned at the medium position of VIII axle, one end of described VIII axle also is provided with the back output gear, described back output gear and the driven gear engagement that is installed on the rear-guard output shaft, the described rear-guard output shaft other end is provided with drive bevel gear, drive bevel gear and driven wheel of differential engagement.
Do further to improve, the axle of going up of described separator box is connected with front propeller shaft, and the described axle of going up is provided with disengage gears, disengage gears and the ring gear engagement that is installed on the lower shaft, and described lower shaft is connected with rear propeller shaft.
Principle of work of the present utility model: front gear box of the present utility model is at synchronous output gear of the other increase of the facility output gear of the II axle of traditional workers and peasants-12 type tractor gear change speed gear box, increase a VIII axle at the rear portion of II axle simultaneously, the VIII axle is provided with output gear behind a change gear and, can be respectively under the control of shift fork and the facility output gear, the synchronous output gear engagement that increases newly, when change gear meshes with synchronous output gear, the back output gear transmission of power on the realization VIII axle and the power of VII axle are synchronous, when change gear and the engagement of facility output gear, the back output gear independent transferring power of realization on the VIII axle, rear transmission gear box has only the effect of disconnection and UNICOM's transmission of power, the function that does not have speed change, so the shift transformation of car load only need be handled front gear box.
Compared with the prior art, the utlity model has following beneficial effect:
1. the utility model does not need to be provided with respectively f-w-d change speed gear box and back-wheel drive change speed gear box, and therefore, drive mechanism is reliable, makes simply, and later maintenance is easy.
2. prolonged the life-span of trac..A change speed gear box is only arranged, driving efficiency height not only, and cause problems such as engine off in the driving process and parts damage when having avoided front and back wheel to drive simultaneously because two change speed gear box gears are not corresponding.
3. change speed gear box improves based on traditional change speed gear box, the a small amount of transformation of original production device just can be produced, the operator does not need to retrain, invest little, the manufacturing line upgrade cost is low, the simultaneously part of change speed gear box and the part universality height of traditional change speed gear box, all kinds of farm implements of former tractor all can use on the market, the client newly purchase or the cost that renews low.
4. engine power degree of utilization height.The utility model outputs power to front driving wheel by front gear box, simultaneously can output power to rear drive sprocket, make trac. realize the front and back driven in synchronism, effectively avoid drive wheel to skid by rear transmission gear box, give full play to the driving torque of driving engine, improved carrying capacity.
5. the utlity model has two kinds of drive patterns that single front wheel drives, front and back wheel drives simultaneously, be convenient to vehicle and be adapted to various complex road conditions.
Description of drawings
Fig. 1 is the structural representation of four-wheel drive tractor before and after the single change speed gear box of the utility model;
Fig. 2 is the main-gear box of four-wheel drive tractor before and after the single change speed gear box of the utility model and the structural representation of auxiliary gear box;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the cutaway view of the separator box of four-wheel drive tractor before and after the single change speed gear box of the utility model.
Parts title and sequence number among the figure:
Driving engine 1, cone belt 2, front-wheel 3, power-transfer clutch 4, change speed gear box 5, auxiliary gear box 6, vehicle body 7, front propeller shaft 8, separator box 9, rear propeller shaft 10, rear-guard bridge bag 11, trailing wheel 12, synchronous output gear 13, bearing 14, constant speed output gear 15, II axle 16, change gear 17, VIII axle 18, back output gear 19, driven gear 20, rear-guard output shaft 21, driven wheel of differential 22, drive bevel gear 23, lower shaft 24, ring gear 25, last axle 26, disengage gears 27, I axle 28, III axle 29, IV axle 30, V axle 31, VI axle 32, VII axle 33.
The specific embodiment
Below in conjunction with drawings and Examples the single change speed gear box of the utility model front and back four-wheel drive tractor is described.
Embodiment 1:
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the utility model comprises vehicle body 7, be installed in the front-wheel 3 of vehicle body 7 front portions, be installed in the trailing wheel 12 at vehicle body 7 rear portions, be installed on the vehicle body 7 and the driving engine 1 of transferring power successively, cone belt 2, power-transfer clutch 4, change speed gear box 5, auxiliary gear box 6, front propeller shaft 8, separator box 9, rear propeller shaft 10, rear-guard bridge bag 11, change speed gear box 5 comprises the I axle 28 of transferring power successively, II axle 16, III axle 29, IV axle 30, V axle 31, VI axle 32, VII axle 33 and the transmission gear on each thereof, change speed gear box 5 also is provided with VIII axle 18, VIII axle 18 is provided with change gear 17 and the synchronous output gear 13 or 15 engagements of constant speed output gear that are installed on the II axle 16, output gear 13 is connected with II axle 16 by bearing 14 synchronously, change gear 17 is positioned at the medium position of VIII axle 18, one end of VIII axle 18 also is provided with back output gear 19, described back output gear 19 and driven gear 20 engagements that are installed on the rear-guard output shaft 21, rear-guard output shaft 21 other ends are provided with drive bevel gear 23, drive bevel gear 23 and driven wheel of differential 22 engagements, the axle 26 gone up of separator box 9 is connected with front propeller shaft 8, last axle 26 is provided with disengage gears 27, disengage gears 27 and ring gear 25 engagements that are installed on the lower shaft 24, lower shaft 24 is connected with rear propeller shaft 10.
In the present embodiment, cut off the transferring power of output gear 19 and driven gear 20 backward or cut off transferring power to disengage gears 27 and ring gear 25 by shift fork, power is delivered to VII axle 33, front-wheel 3 from the I axle 28 of change speed gear box 5, realizes the front-wheel independent drive.
Changing gear in the present embodiment only needs more the gear of transformation case 5 can finish gearshift.
Embodiment 2:
Difference from Example 1 is, mesh synchronous output gear 13 and cut off the engagement of constant speed output gear 15 by shift fork, power is delivered to VII axle 33, front-wheel 3 from I axle 28, be delivered to change gear 17, VIII axle 18, back output gear 19, driven gear 20, rear-guard output shaft 21, drive bevel gear 23, driven wheel of differential 22, front propeller shaft 8, disengage gears 27, go up axle 26, ring gear 25, lower shaft 24, rear propeller shaft 10, rear-guard bridge bag 11, trailing wheel 12 by synchronous output gear 13 from III axle 29 simultaneously, realize front-wheel, trailing wheel gear driven in synchronism.
Make the disengage gears 27 of separator box 9 and ring gear 25 engagements in the present embodiment, separator box 9 no gears change, change gear only need more the gear of transformation case 5 can finish gearshift.
Embodiment 3:
Be with the arbitrary difference of embodiment 1-2, cut off the engagement of synchronous output gear 13 and being connected of engagement constant speed output gear 15 and change gear 17 by shift fork, transmission of power is realized the trailing wheel independent drive to VIII axle 18, back output gear 19, driven gear 20, rear-guard output shaft 21, drive bevel gear 23, driven wheel of differential 22, front propeller shaft 8, disengage gears 27, last axle 26, ring gear 25, lower shaft 24, rear propeller shaft 10, rear-guard bridge bag 11, trailing wheel 12.
In the present embodiment, make the disengage gears 27 of separator box 9 and ring gear 25 engagements, separator box 9 no gears change, change gear only need more the gear of transformation case 5 can finish gearshift.
Claims (2)
1. four-wheel drive tractor before and after the single change speed gear box, comprise vehicle body (7), be installed in the anterior front-wheel (3) of vehicle body (7), be installed in the trailing wheel (12) at vehicle body (7) rear portion, be installed in vehicle body (7) and go up also the driving engine of transferring power (1) successively, belt (2), power-transfer clutch (4), change speed gear box (5), auxiliary gear box (6), front propeller shaft (8), separator box (9), rear propeller shaft (10), rear-guard bridge bag (11), described change speed gear box (5) comprises the I axle (28) of transferring power successively, II axle (16), III axle (29), IV axle (30), V axle (31), VI axle (32), VII axle (33) and the transmission gear on each thereof, it is characterized in that: described change speed gear box (5) also is provided with VIII axle (18), VIII axle (18) is provided with change gear (17) and the synchronous output gear (13) or constant speed output gear (15) engagement that are installed on the II axle (16), described synchronous output gear (13) is connected with II axle (16) by bearing (14), described change gear (17) is positioned at the medium position of VIII axle (18), one end of described VIII axle (18) also is provided with back output gear (19), described back output gear (19) and driven gear (20) engagement that is installed on the rear-guard output shaft (21), described rear-guard output shaft (21) other end is provided with drive bevel gear (23), drive bevel gear (23) and driven wheel of differential (22) engagement.
2. four-wheel drive tractor before and after the single change speed gear box according to claim 1, it is characterized in that: the axle (26) of going up of described separator box (9) is connected with front propeller shaft (8), the described axle (26) of going up is provided with disengage gears (27), disengage gears (27) and ring gear (25) engagement that is installed on the lower shaft (24), described lower shaft (24) is connected with rear propeller shaft (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220722127 CN203078312U (en) | 2012-12-24 | 2012-12-24 | Front-and-rear four-wheel drive tractor with single gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220722127 CN203078312U (en) | 2012-12-24 | 2012-12-24 | Front-and-rear four-wheel drive tractor with single gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203078312U true CN203078312U (en) | 2013-07-24 |
Family
ID=48824177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220722127 Expired - Fee Related CN203078312U (en) | 2012-12-24 | 2012-12-24 | Front-and-rear four-wheel drive tractor with single gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203078312U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102991350A (en) * | 2012-12-24 | 2013-03-27 | 南宁市武拖机械有限责任公司 | Front and back four wheel driving tractor of single speed changing box |
| CN103723037A (en) * | 2013-12-18 | 2014-04-16 | 刘光兵 | Articulated tractor head and tractor with same |
-
2012
- 2012-12-24 CN CN 201220722127 patent/CN203078312U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102991350A (en) * | 2012-12-24 | 2013-03-27 | 南宁市武拖机械有限责任公司 | Front and back four wheel driving tractor of single speed changing box |
| CN102991350B (en) * | 2012-12-24 | 2016-01-13 | 南宁市武拖机械有限责任公司 | Four-wheel drive tractor before and after single change speed gear box |
| CN103723037A (en) * | 2013-12-18 | 2014-04-16 | 刘光兵 | Articulated tractor head and tractor with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202690954U (en) | Differential mechanism with motor auxiliary drive fork type slip-limiting differential lock | |
| US20200096083A1 (en) | An axle assembly | |
| JP2001105917A (en) | Transfer case | |
| CN103291857B (en) | Small tractor gearbox | |
| CN103241122A (en) | Travel driving device of sub-soiling cultivation soil preparation machine | |
| CN203078312U (en) | Front-and-rear four-wheel drive tractor with single gearbox | |
| CN203267776U (en) | Walking drive device of deep scarification land preparation machine | |
| CN202491682U (en) | Articulated steering tractor | |
| CN106809007A (en) | A kind of pair of gearbox four-wheel drive tractor | |
| CN102991350B (en) | Four-wheel drive tractor before and after single change speed gear box | |
| CN203020077U (en) | Double-gearbox front-and-rear four-wheel drive tractor | |
| CN202016397U (en) | Energy-saving device for serial driving axle of heavy-duty automobile | |
| CN1248882C (en) | Differential independent unit for individual 4 drivers of moto-driven vehicle | |
| CN104149609A (en) | Tractor | |
| CN201530426U (en) | Four-wheel driven hand tractor | |
| CN2429369Y (en) | Four-wheels drives of car | |
| CN211166446U (en) | All-time four-wheel-drive commercial vehicle transfer case with differential limiting function | |
| CN202656866U (en) | Four-wheel driving bowing turning type steering wheel tractor with single transmission box | |
| CN102358179A (en) | Transmission method capable of enabling rear wheels of walking tractor to drive | |
| CN201753023U (en) | Four-wheel driven tractor | |
| CN201124760Y (en) | Transmission arrangement for transport tractor | |
| CN203363022U (en) | Small-sized tractor gearbox | |
| CN204020561U (en) | Trac. | |
| CN202022099U (en) | Transmission device of single-transmission-case tractor with direction change caused by rolling waist | |
| CN203449928U (en) | Hydrostatic stepless variable speed drive system of gardening type tractor with medium and small power |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20151224 |
|
| EXPY | Termination of patent right or utility model |