CN102991350B - Four-wheel drive tractor before and after single change speed gear box - Google Patents
Four-wheel drive tractor before and after single change speed gear box Download PDFInfo
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- CN102991350B CN102991350B CN201210568896.4A CN201210568896A CN102991350B CN 102991350 B CN102991350 B CN 102991350B CN 201210568896 A CN201210568896 A CN 201210568896A CN 102991350 B CN102991350 B CN 102991350B
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- axle
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- wheel
- change speed
- gear box
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Abstract
The invention discloses four-wheel drive tractor before and after a kind of single change speed gear box, aim to provide that a kind of front-wheel drives separately, front-wheel and trailing wheel only need operate four-wheel drive tractor before and after the single change speed gear box of a change speed gear box with the gearshift that shelves drive, it adds a synchronism output gear on traditional change speed gear box II axle, increase a VIII axle simultaneously, VIII axle is provided with change gear and rear output gear, achieves that front-wheel drives separately, front-wheel and trailing wheel drive two kinds of type of drive with shelves.The invention solves that trac. hill climbing ability is poor, tyre slip and cause the problem of damage of components because gear is asynchronous under load, be particularly useful for the harsies environment such as mountain area, hillside fields, forestry, pasture, cross-country locality and use.
Description
Technical field
The present invention relates to a kind of trac., specifically, relate to four-wheel drive tractor before and after a kind of single change speed gear box.
Background technology
The small farm trac. that China rural area the most generally uses improves from walker tractor the four-wheel transport vehicle developed, this trac. often only has f-w-d, travels the skidding very easily occurred when the road that muddy, uneven, hollow, the gradient are large because front-wheel tractive force causes not.For these problems, the current remodeling product having occurred the farm tractor of some, it mainly improves is export walking power from the facility output shaft of conventional gearbox to compartment trailing wheel, have that front-wheel drives separately, front and back wheel drives simultaneously, trailing wheel drives Three models separately, driver selects drive pattern according to concrete road conditions, improves the driveability of this small agricultural carrier vehicle at complex-terrain.But its change speed gear box is generally divided into the main-gear box driving front-wheel and the auxiliary gearbox driving trailing wheel, the conversion of gear needs two change speed gear boxs to coordinate together just to complete, if the trac. of this drive mechanism hangs wrong gear when shifting gears, or a certain change speed gear box does not hang gear, and just to form front and back gear asynchronous, cause engine off, even cause damage.
At present, we retrieve some open source literatures about trac., such as:
1. Chinese Patent Application No. 200910013612.3, publication date on June 1st, 2009, this application case discloses a kind of 4-wheel driven articulated tractor trucks, it comprises frame and back axle assembly, frame is provided with driving engine, power-transfer clutch, hydraulic steering gear and front axle assy, and front axle assy comprises propons case, and propons case is connected with main-gear box, main-gear box is connected with transfer gear box, and transfer gear box is provided with transfer gear box power take-off shaft; Back axle assembly comprises wagon box and rear axle shaft, rear axle shaft is provided with back axle Transaxle, is in transmission connection between back axle Transaxle and transfer gear box power take-off shaft by universal drive shaft.Its weak point is: unpowered separator box between rear propeller shaft and auxiliary gear box, cannot obtain front wheel drive mode, field of application is less.
Summary of the invention
For the shortcoming of prior art, the object of this invention is to provide that a kind of front-wheel drives separately, four-wheel drive tractor before and after single change speed gear box that front-wheel and the synchronously driven gearshift of trailing wheel only need operate a change speed gear box.
For achieving the above object, the present invention is achieved by the following scheme:
Four-wheel drive tractor before and after a kind of single change speed gear box, comprise vehicle body, be arranged on the front-wheel of body forward structure, be arranged on the trailing wheel of body tail, to be arranged on 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, II axle, III axle, IV axle, V axle, VI axle, transmission gear on VII axle and each axle thereof, described change speed gear box is also provided with VIII axle, VIII axle is provided with change gear and engages with the synchronism output gear be arranged on II axle or constant speed output gear, described synchronism output gear is connected with II axle by bearing, described change gear is positioned at the medium position of VIII axle, one end of described VIII axle is also provided with rear output gear, described rear output gear engages with the driven gear be arranged on rear-guard output shaft, the described rear-guard output shaft other end is provided with drive bevel gear, drive bevel gear engages with driven wheel of differential.
Be improved further, the axle of described separator box is connected with front propeller shaft, and described upper axle is provided with disengage gears, and disengage gears engages with the ring gear be arranged on lower shaft, and described lower shaft is connected with rear propeller shaft.
Principle of work of the present invention: front gear box of the present invention is at a facility output gear other increase synchronism 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, VIII axle is provided with output gear after a change gear and, under the control of shift fork can respectively with facility output gear, the synchronism output gears meshing newly increased, when change gear and synchronism output gears meshing, realize the power synchronous of rear output gear transmission of power on VIII axle and VII axle, when change gear engages with facility output gear, realize to the independent transferring power of rear output gear on VIII axle, rear transmission gear box only has the effect of disconnection and UNICOM's transmission of power, not there is the function of speed change, therefore the transforming gear of car load only need handle front gear box.
Compared with the prior art, the present invention has following beneficial effect:
1. the present invention does not need to arrange f-w-d change speed gear box and back-wheel drive change speed gear box respectively, and therefore, drive mechanism is reliable, and manufacture simple, later maintenance is easy.
2. extend the life-span of trac..Only have a change speed gear box, not only driving efficiency is high, and to avoid when front and back wheel drives simultaneously problems such as causing engine off in driving process and parts damage because two change speed gear box gears are not corresponding.
3. change speed gear box improves based on conventional gearbox, original production equipment only needs a small amount of transformation to produce, operator does not need to retrain, invest little, manufacturing line upgrade cost is low, simultaneously the part of change speed gear box and the part universality of conventional gearbox high, on market, all kinds of farm implements of former tractor all can use, client newly purchase or the cost that renews low.
4. engine power degree of utilization is high.The present invention outputs power to front driving wheel by front gear box, output power to rear drive sprocket by rear transmission gear box simultaneously, make trac. realize the synchronous driving in front and back, effectively avoid drive wheel to skid, give full play to the driving torque of driving engine, improve carrying capacity.
5. the present invention has two kinds of drive patterns that single front wheel drives, front and back wheel drives simultaneously, is convenient to vehicle and is adapted to various complex road condition.
Accompanying drawing explanation
Fig. 1 is the structural representation of four-wheel drive tractor before and after the single change speed gear box of the present invention;
Fig. 2 is the main-gear box of four-wheel drive tractor and the structural representation of auxiliary gear box before and after the single change speed gear box of the present invention;
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 present invention.
Parts title and sequence number in 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, synchronism output gear 13, bearing 14, constant speed output gear 15, II axle 16, change gear 17, VIII axle 18, rear 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, upper axle 26, disengage gears 27, I axle 28, III axle 29, IV axle 30, V axle 31, VI axle 32, VII axle 33.
Detailed description of the invention
Below in conjunction with drawings and Examples, four-wheel drive tractor before and after the single change speed gear box of the present invention is described.
Embodiment 1:
As shown in the figure, the present invention includes vehicle body 7, be arranged on the front-wheel 3 of vehicle body 7 front portion, be arranged on the trailing wheel 12 at vehicle body 7 rear portion, to be arranged on 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, 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, transmission gear on VII axle 33 and each axle thereof, described change speed gear box 5 is also provided with VIII axle 18, VIII axle 18 is provided with change gear 17 and engages with the synchronism output gear 13 be arranged on II axle 16 or constant speed output gear 15, described synchronism 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 is also provided with rear output gear 19, described rear output gear 19 engages with the driven gear 20 be arranged on rear-guard output shaft 21, described rear-guard output shaft 21 other end is provided with drive bevel gear 23, drive bevel gear 23 engages with driven wheel of differential 22, the axle 26 of described separator box 9 is connected with front propeller shaft 8, described upper axle 26 is provided with disengage gears 27, disengage gears 27 engages with the ring gear 25 be arranged on lower shaft 24, described lower shaft 24 is connected with rear propeller shaft 10.
In the present embodiment, the transferring power cutting off output gear 19 and driven gear 20 backward by shift fork or the transferring power cut off to disengage gears 27 and ring gear 25, power is delivered to VII axle 33, front-wheel 3 from the I axle 28 of change speed gear box 5, realizes front-wheel and drives separately.
Changing gear in the present embodiment only needs the gear of more transformation case 5 to complete gearshift.
Embodiment 2:
Difference from Example 1 is, by shift fork engagement synchronism output gear 13 and the engagement cutting off constant speed output gear 15, power is delivered to VII axle 33, front-wheel 3 from I axle 28, be delivered to change gear 17, VIII axle 18, rear 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, upper axle 26, ring gear 25, lower shaft 24, rear propeller shaft 10, rear-guard bridge bag 11, trailing wheel 12 from III axle 29 by synchronism output gear 13 simultaneously, realize front-wheel, trailing wheel gear synchronously drives.
Make the disengage gears 27 of separator box 9 and ring gear 25 engage in the present embodiment, separator box 9 is without gear change, and changing gear only needs the gear of more transformation case 5 to complete gearshift.
Embodiment 3:
Be with the arbitrary difference of embodiment 1-2, the engagement of synchronism output gear 13 and the connection of engagement constant speed output gear 15 and change gear 17 is cut off by shift fork, transmission of power, to VIII axle 18, rear 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, upper axle 26, ring gear 25, lower shaft 24, rear propeller shaft 10, rear-guard bridge bag 11, trailing wheel 12, realizes trailing wheel and drives separately.
In the present embodiment, the disengage gears 27 of separator box 9 and ring gear 25 are engaged, separator box 9 is without gear change, and changing gear only needs the gear of more transformation case 5 to complete gearshift.
Claims (2)
1. four-wheel drive tractor before and after a single change speed gear box, comprise vehicle body (7), be arranged on the front-wheel (3) that vehicle body (7) is anterior, be arranged on the trailing wheel (12) at vehicle body (7) rear portion, be arranged on the driving engine (1) that vehicle body (7) goes up also transferring power 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), transmission gear on VII axle (33) and each axle thereof, it is characterized in that: described change speed gear box (5) is also provided with VIII axle (18), VIII axle (18) is provided with change gear (17) and engages with the synchronism output gear (13) be arranged on II axle (16) or constant speed output gear (15), described synchronism 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) is also provided with rear output gear (19), described rear output gear (19) engages with the driven gear (20) be arranged on rear-guard output shaft (21), described rear-guard output shaft (21) other end is provided with drive bevel gear (23), drive bevel gear (23) engages with driven wheel of differential (22).
2. four-wheel drive tractor before and after single change speed gear box according to claim 1, it is characterized in that: in described separator box (9), be provided with the upper axle (26) be connected with front propeller shaft (8), described upper axle (26) is provided with disengage gears (27), disengage gears (27) engages with the ring gear (25) be arranged on lower shaft (24), and described lower shaft (24) is connected with rear propeller shaft (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210568896.4A CN102991350B (en) | 2012-12-24 | 2012-12-24 | Four-wheel drive tractor before and after single change speed gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210568896.4A CN102991350B (en) | 2012-12-24 | 2012-12-24 | Four-wheel drive tractor before and after single change speed gear box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102991350A CN102991350A (en) | 2013-03-27 |
| CN102991350B true CN102991350B (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210568896.4A Expired - Fee Related CN102991350B (en) | 2012-12-24 | 2012-12-24 | Four-wheel drive tractor before and after single change speed gear box |
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| Country | Link |
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| CN (1) | CN102991350B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106888585A (en) * | 2017-01-24 | 2017-06-27 | 南宁市武拖机械有限责任公司 | One kind is ploughed and uses tractor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2916262Y (en) * | 2006-07-15 | 2007-06-27 | 李培根 | Tractor transmission mechanism |
| CN202301782U (en) * | 2011-10-12 | 2012-07-04 | 蒙祖周 | Front and/rear drive full-gear-position synchronous tractor |
| CN203078312U (en) * | 2012-12-24 | 2013-07-24 | 南宁市武拖机械有限责任公司 | Front-and-rear four-wheel drive tractor with single gearbox |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3647186B2 (en) * | 1997-03-12 | 2005-05-11 | 株式会社クボタ | Agricultural tractor |
| DE102006050000A1 (en) * | 2006-10-24 | 2008-05-15 | Zf Friedrichshafen Ag | Transmission of a vehicle drivable by a motor |
| CN202020990U (en) * | 2011-03-24 | 2011-11-02 | 上海亿维工业设备有限公司 | Pressure swing adsorption gas separation device |
-
2012
- 2012-12-24 CN CN201210568896.4A patent/CN102991350B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2916262Y (en) * | 2006-07-15 | 2007-06-27 | 李培根 | Tractor transmission mechanism |
| CN202301782U (en) * | 2011-10-12 | 2012-07-04 | 蒙祖周 | Front and/rear drive full-gear-position synchronous tractor |
| CN203078312U (en) * | 2012-12-24 | 2013-07-24 | 南宁市武拖机械有限责任公司 | Front-and-rear four-wheel drive tractor with single gearbox |
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| CN102991350A (en) | 2013-03-27 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20181224 |
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| CF01 | Termination of patent right due to non-payment of annual fee |