CN202531747U - Multifunctional speed changer of four-wheel drive tractor - Google Patents
Multifunctional speed changer of four-wheel drive tractor Download PDFInfo
- Publication number
- CN202531747U CN202531747U CN2012201192363U CN201220119236U CN202531747U CN 202531747 U CN202531747 U CN 202531747U CN 2012201192363 U CN2012201192363 U CN 2012201192363U CN 201220119236 U CN201220119236 U CN 201220119236U CN 202531747 U CN202531747 U CN 202531747U
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- gear
- output shaft
- retaining
- speed changer
- shaft
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Abstract
The utility model relates to a multifunctional speed changer of a four-wheel drive tractor. An output shaft of a front wheel is emptily sheathed with a cone gear of a main speed changer through a first bearing; an output shaft of a rear wheel are sheathed with a first-second shifting slide gear and a third-fourth shifting slide gear in a spline fit manner; the output shaft of the rear wheel is inserted into a hollow shaft of an input shaft of the main speed changer through a second bearing; a fourth driving gear and a neutral driving gear are arranged on the hollow shaft; and the output shaft of the rear wheel and the output shaft of the front wheel are sheathed with a front driving gear and a front driven gear that are engaged with each other, respectively. In the gear shifting process, the shifting slide gears on the output shaft of the rear wheel are shifted to be engaged with the corresponding gear on the cone gear, so that a fourth gear is added, and the output shaft of the rear wheel drives the output shaft of the front wheel to realize four-wheel drive as the input shaft of the main speed changer directly drives the output shaft of the rear wheel. The multifunctional speed changer has multiple gears, is simple in operation, and can be widely applied to agricultural vehicles.
Description
Technical field
The utility model belongs to transmission for vehicles, particularly relates to a kind of multi-function variable-speed device of four-wheel drive tractor.
Background technique
On agri-vehicles such as tractor, because the particularity of working environment adopts the two-wheel drive mode of forerunner or rear-guard to be difficult to adapt to separately, four-wheel drive just can be good at solving the proper functioning problem under the agri-vehicle complex environment.
Generally between forward and backward live axle, transfer case is being set on the tractor of existing employing four-wheel drive; The power of motor is driven to front and rear wheel respectively carry out four-wheel drive; All speed changer need be set at forward and backward live axle like this, consistent with the speed when becoming retaining that realizes forward and backward axle, in vehicle driving, become the retaining operation and just must become retaining simultaneously the front and back live axle; Complicated operation, easy error causes damage to vehicle drive system.Simultaneously, the gear of existing gear box of tractor has only three forward gears, and gear is less, is difficult to realize car speed is controlled accurately.
The model utility content
Two speed changers that in four-wheel drive, exist to existing tractor become the retaining complicated operation simultaneously; And transmission gear less defects; The utility model provides a kind of four-wheel drive tractor multi-function variable-speed device; In order to replace the transfer case and former and later two speed changers on the existing tractor, can effectively realize the function that vehicular four wheels drives simultaneously, and increase the gear of speed changer.
The utility model adopts following technological scheme to realize: a kind of four-wheel drive tractor multi-function variable-speed device; In the housing of speed changer, be provided with basic trnasmission input shaft, rear wheel output shaft and front wheel output shaft; On said front wheel output shaft, be set with the basic trnasmission pagoda gear that is provided with one, two, three retaining fixed gears and neutral driven gear through clutch shaft bearing; On the basic trnasmission input shaft, be with the neutral driven gear engagement of neutral driving gear and said basic trnasmission pagoda gear; On said rear wheel output shaft, be set with one or two retaining shifting slide gears and three or four retaining shifting slide gears successively through spline fitted; The end that said basic trnasmission input shaft is positioned at speed changer is a hollow shaft; Said rear wheel output shaft is plugged in through second bearing in the hollow shaft of basic trnasmission input shaft, on said hollow shaft, is set with four retaining driving gears, on three or four retaining shifting slide gears, is provided with four retaining driven gears; On said rear wheel output shaft and front wheel output shaft, be respectively installed with intermeshing forerunner's driving gear and forerunner's driven gear.
Between said front wheel output shaft and rear wheel output shaft, be provided with reverse shaft, be set with on it respectively with one or two retaining shifting slide gears on the shifting slide gear that reverses gear that meshes of a retaining fixed gear of first gear and basic trnasmission pagoda gear.
Said speed changer also is provided with the oil pump output shaft, through spline housing the oil pump shifting slide gear with basic trnasmission pagoda gear engagement is housed on it.
Being arranged on the retaining of four on main shaft basic trnasmission input shaft driving gear is external tooth, and the four retaining driven gears that are arranged on three or the four retaining shifting slide gears are internal tooth, and four retaining driving gears and three or four are four retaining forward gears when keeping off four retaining driven gear engagements on the shifting slide gears.
Said forerunner's driving gear is identical with the number of teeth of forerunner's driven gear.
Said speed changer also includes auxiliary transmission, and said auxiliary transmission is high, low speed two shift transmissions, and the auxiliary transmission output shaft is connected with the basic trnasmission input shaft.
Said front wheel output shaft is connected with front wheel differential gear.
On said rear wheel output shaft, being disposed with break is connected with the trailing wheel differential mechanism with coupling.
The related speed changer of the utility model comprises basic trnasmission and auxiliary transmission; The similar of auxiliary transmission is in basic trnasmission; Be made up of auxiliary transmission input shaft, auxiliary transmission output shaft and pagoda gear shaft, the auxiliary transmission output shaft is the shifting slide gear axle, is set with the auxiliary transmission shifting slide gear on it; On the pagoda gear shaft, be set with the pagoda gear; Auxiliary transmission has only at a high speed and two gears of low speed, and top gear is that auxiliary transmission input shaft and output shaft directly combine, and bottom gear is through the transmission transmission output shaft output again of auxiliary transmission input shaft transmission pagoda gear.Auxiliary transmission has enriched the gear of speed changer, makes agri-vehicle such as tractor can adapt to the complicated working environment that goes more.
Basic trnasmission is that four forward gears and one are reversed gear; Compared more than the common tractor speed changer one four retaining; Four retaining driving gears and neutral driving gear are fixed on the basic trnasmission input shaft; During neutral; Neutral driving gear on the basic trnasmission input shaft drives basic trnasmission pagoda gear and on front wheel output shaft, dallies, and when needs became retaining, one, two, three retainings and reversing gear slided through stirring one or two retaining shifting slide gears, three or four retaining shifting slide gears and the shifting slide gear that reverses gear respectively; Make it with basic trnasmission pagoda gear on corresponding one, two, the three retaining fixed gears engagements change retaining that both can realize one, two, three retainings and reverse gear; When needs changed to for 4 whens retaining through stirring three or four retaining shifting slide gears, make four retaining driven gears directly with the basic trnasmission input shaft on four retaining driving gears engagements, through the direct transmission rear wheel output shaft rotation of basic trnasmission input shaft.Rear wheel output shaft is a line shaft; On the relevant position of rear wheel output shaft and front wheel output shaft, be set with the identical forerunner's driving gear of the number of teeth and forerunner's driven gear; Give front wheel output shaft through trailing wheel while transferring power; Because basic trnasmission pagoda gear utilizes the clutch shaft bearing sky to be enclosed within on the front wheel output shaft, so the rotating speed of front wheel output shaft and rear wheel output shaft is identical, has realized the four-wheel drive of vehicle.
The rear wheel output shaft of speed changer is connected with break and coupling, and break is used for the manual brake of vehicle, and coupling is in order to realize the switching of vehicle forerunner and 4 wheel driven.
From the above mentioned, the related transmission gear of the utility model is many, and it is simple to operate to become retaining, has effectively solved two gearboxes that exist on the existing tractor and has become the retaining difficulty, and problems such as transmission system complicacy can be widely used in agricultural vehicle.
Description of drawings
Fig. 1 is the speed changer structure schematic representation.
Fig. 2 is basic trnasmission input shaft and rear wheel output shaft joint structural representation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Embodiment:
Referring to Fig. 1; In case of transmission 4 left parts, being provided with auxiliary transmission input shaft 1, auxiliary transmission output shaft 3 and pagoda gear shaft 21 forms; Auxiliary transmission output shaft 3 is the shifting slide gear axle; Be set with auxiliary transmission shifting slide gear 2 on it, on pagoda gear shaft 21, be set with auxiliary transmission pagoda gear 22, auxiliary transmission has only at a high speed and two gears of low speed; Top gear is that auxiliary transmission input shaft 1 directly combines through auxiliary transmission shifting slide gear 2 with auxiliary transmission output shaft 3, and bottom gear is through transmission transmission output shaft 3 outputs again of auxiliary transmission input shaft 1 transmission speed changer pagoda gear 22.
In the right part of housing 4, be provided with basic trnasmission input shaft 5, rear wheel output shaft 8 and front wheel output shaft 17; On front wheel output shaft 17, be set with the basic trnasmission pagoda gear 18 that is provided with one, two, three retaining fixed gears through clutch shaft bearing 19; On rear wheel output shaft 8, be set with one or two retaining shifting slide gears 9 and three or four retaining shifting slide gears 7 successively through spline fitted; Basic trnasmission input shaft 5 one ends are connected with auxiliary transmission output shaft 3 through internal spline; The other end is a hollow shaft, and in conjunction with referring to Fig. 2, rear wheel output shaft 8 is plugged in the hollow shaft of basic trnasmission input shaft 5 through second bearing 25; On hollow shaft, be set with four retaining driving gears 24, as the four retaining driving gears 24 and the four retaining driven gear engagements of the internal tooth on three or the four retaining shifting slide gears 7 of external tooth.On basic trnasmission input shaft 5, be with neutral driven gear 20 engagements of neutral driving gear 6 and basic trnasmission pagoda gear 18, on rear wheel output shaft 8 and front wheel output shaft 17, also be respectively installed with the identical intermeshing forerunner's driving gear of the number of teeth 11 and forerunner's driven gear 13.
Between front wheel output shaft 17 and rear wheel output shaft 8, be provided with reverse shaft 14, be set with the shifting slide gear 10 that reverses gear that keeps off the fixing tooth engagement respectively with one of one or two retaining shifting slide gears 9 and basic trnasmission pagoda gear 18 on it.Below rear wheel output shaft 8, also be provided with oil pump output shaft 15, through spline housing the oil pump shifting slide gear 16 that keeps off the fixed gears engagement with two of basic trnasmission pagoda gear 18 be housed on it.
Front wheel output shaft 17 is connected the driving front-wheel with front wheel differential gear 26.
Rear wheel output shaft 8 connects break 12 and coupling 23 successively, drives trailing wheel.
Claims (8)
1. four-wheel drive tractor multi-function variable-speed device; In the housing of speed changer, be provided with basic trnasmission input shaft, rear wheel output shaft and front wheel output shaft; On said front wheel output shaft, be set with the basic trnasmission pagoda gear that is provided with one, two, three retaining fixed gears and neutral driven gear through clutch shaft bearing; On the basic trnasmission input shaft, be with the neutral driven gear engagement of neutral driving gear and said basic trnasmission pagoda gear; On said rear wheel output shaft, be set with one or two retaining shifting slide gears and three or four retaining shifting slide gears successively through spline fitted; It is characterized in that: the end that said basic trnasmission input shaft is positioned at speed changer is a hollow shaft; Said rear wheel output shaft is plugged in through second bearing in the hollow shaft of basic trnasmission input shaft, on said hollow shaft, is set with four retaining driving gears, on three or four retaining shifting slide gears, is provided with four retaining driven gears; On said rear wheel output shaft and front wheel output shaft, be respectively installed with intermeshing forerunner's driving gear and forerunner's driven gear.
2. speed changer according to claim 1; It is characterized in that: between said front wheel output shaft and rear wheel output shaft, be provided with reverse shaft, be set with on it respectively with one or two retaining shifting slide gears on the shifting slide gear that reverses gear that meshes of a retaining fixed gear of first gear and basic trnasmission pagoda gear.
3. speed changer according to claim 2 is characterized in that: said speed changer also is provided with the oil pump output shaft, through spline housing the oil pump shifting slide gear with basic trnasmission pagoda gear engagement is housed on it.
4. speed changer according to claim 1; It is characterized in that: being arranged on the retaining of four on main shaft basic trnasmission input shaft driving gear is external tooth; The four retaining driven gears that are arranged on three or the four retaining shifting slide gears are internal tooth, and four on four retaining driving gears and three or the four retaining shifting slide gears are four retaining forward gears when keeping off the driven gear engagement.
5. speed changer according to claim 1 is characterized in that: said forerunner's driving gear is identical with the number of teeth of forerunner's driven gear.
6. according to each described speed changer of claim 1-5, it is characterized in that: said speed changer also includes auxiliary transmission, and said auxiliary transmission is high, low speed two shift transmissions, and the auxiliary transmission output shaft is connected with the basic trnasmission input shaft.
7. speed changer according to claim 6 is characterized in that: said front wheel output shaft is connected with front wheel differential gear.
8. speed changer according to claim 6 is characterized in that: on said rear wheel output shaft, be connected with break and coupling in turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201192363U CN202531747U (en) | 2012-03-27 | 2012-03-27 | Multifunctional speed changer of four-wheel drive tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201192363U CN202531747U (en) | 2012-03-27 | 2012-03-27 | Multifunctional speed changer of four-wheel drive tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531747U true CN202531747U (en) | 2012-11-14 |
Family
ID=47132934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201192363U Expired - Fee Related CN202531747U (en) | 2012-03-27 | 2012-03-27 | Multifunctional speed changer of four-wheel drive tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531747U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363068A (en) * | 2013-06-28 | 2013-10-23 | 李承昌 | Synchronous gearbox of four-wheel drive tractor |
| CN110296203A (en) * | 2019-08-06 | 2019-10-01 | 浙江东冠通信技术股份有限公司 | A kind of automobile-used transfer case of smart city maintenance |
-
2012
- 2012-03-27 CN CN2012201192363U patent/CN202531747U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363068A (en) * | 2013-06-28 | 2013-10-23 | 李承昌 | Synchronous gearbox of four-wheel drive tractor |
| CN110296203A (en) * | 2019-08-06 | 2019-10-01 | 浙江东冠通信技术股份有限公司 | A kind of automobile-used transfer case of smart city maintenance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20130327 |