CN205523691U - Tractor trailer driving unit - Google Patents
Tractor trailer driving unit Download PDFInfo
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- CN205523691U CN205523691U CN201620260789.9U CN201620260789U CN205523691U CN 205523691 U CN205523691 U CN 205523691U CN 201620260789 U CN201620260789 U CN 201620260789U CN 205523691 U CN205523691 U CN 205523691U
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- trailer
- tractor
- drive train
- shaft
- trailer drive
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Abstract
The utility model provides a tractor trailer driving unit, belongs to the agricultural machine field. Tractor trailer driving unit includes trailer, power transmission shaft, trailer transaxle and is provided with the tractor of transmission case. The trailer transaxle is fixed in the trailer. The transmission case is provided with rearmounted power output shaft, and rearmounted power output shaft passes through power transmission shaft and is connected with the trailer transaxle. The power of transmission case through rearmounted power output shaft, power transmission shaft and trailer transaxle drive the trailer the trailer wheel and with the rear wheel run -in synchronism of tractor. This drive arrangement can give the trailer with the power transmission of tractor, forms four wheel drive. In addition, drive mechanism realizes simply, and it is more convenient to use, is favorable to having improved operating stability.
Description
Technical field
This utility model belongs to agricultural mechanical field, in particular to a kind of type wheeled tractor trailer drive train.
Background technology
Tractor is in addition to wearing corresponding agricultural machinery and implement and carrying out farmland operation, trailer to be worn carries out hauling operation, in Sichuan and southwest, because natural conditions limit, road is narrow, the gradient is big, bend is little the most, is widely used minitype wheeled tractor and wears monotrailer, the part weight of trailer undertakes by tractor main frame, therefore the easy nose of tractor when Tractor-trailer combinatios heavy duty is climbed, makes Tractor-trailer combinatios not move ahead, and dangerous；Additionally there are depression, tunnel in some location or farmland so that Tractor-trailer combinatios host driven tyre slip, it is impossible to move ahead；In order to solve this problem, it is necessary on trailer increase driving means (rear-guard), heavy duty climbing or through depression, tunnel, hang up rear-guard, can move ahead.
At present, the power of rear-guard is provided by tractor, by increasing gear pump on tractor, increases hydraulic motor, transfer power to trailer by hydraulic pressure on trailer.But this structure needs to configure gear pump, hydraulic oil container, banked direction control valves, pipeline etc. on tractor, structure is complicated, and on baby tractor, cloth postpones, and affects tractor and wears agricultural machinery and implement and carry out farmland operation, the switching carrying out farmland operation and hauling operation at tractor is very inconvenient, wastes time and energy.
Utility model content
The purpose of this utility model is to provide a kind of tractor trailer drive train, can simplify the drive mechanism between drive tractor and trailer, it is simple to use trailer and tractor to be driven simultaneously.
This utility model is achieved in that
A kind of tractor trailer drive train, including trailer, power transmission shaft, trailer drive axle and the tractor being provided with transmission case；
Trailer drive axle is fixed on trailer, transmission case is provided with rear-mounted power output shaft, rear-mounted power output shaft is connected with trailer drive axle by power transmission shaft, the power of transmission case through rear-mounted power output shaft, power transmission shaft and trailer drive axle drive trailer trailer wheels and with the trailing wheel run-in synchronism of tractor.
Preferably, power transmission shaft includes Radix Rumicis universal joint, line shaft and the candan universal joint that universal drive shaft, universal drive shaft include being sequentially connected with；
Radix Rumicis universal joint is connected with rear-mounted power output shaft away from one end of line shaft, and candan universal joint is connected with trailer drive axle away from one end of line shaft.
Preferably, tractor trailer drive train also includes change speed gear box, transmission input shaft and speed change output shaft and for controlling the variable-speed operating control mechanism of change speed gear box；
Change speed gear box is arranged at trailer, and the two ends of transmission input shaft input with candan universal joint, change speed gear box respectively is connected, and the outfan of change speed gear box is connected with trailer drive axle by speed change output shaft.
Preferably, variable-speed operating control mechanism includes: the control handle being mutually matched and control piece, and control handle is arranged at tractor, control piece be arranged at trailer and respectively stick with control handle, change speed gear box be connected.
Preferably, control piece includes electromagnetic valve or hydraulic jack.
Preferably, tractor is provided with and controls whether rear-mounted power power shaft exports the power output clutch of power.
Preferably, tractor trailer drive train also includes: load link, and the vehicle frame of trailer is rotationally connected by the vehicle frame of load link with tractor.
Preferably, tractor trailer drive train also includes: fixing seat, and fixing seat is connected with load link, and fixing seat arranges rotation hole, and transmission input shaft is rotationally connected through rotation hole with fixing seat.
Preferably, described tractor trailer drive train also includes: bearing, and described bearing is arranged in described rotation hole, and described transmission input shaft is rotationally connected through described bearing with described fixing seat.
Preferably, load link includes: traction frame, traction frame, latch and draw bar, and traction frame is arranged at the neighbouring side arranging trailer of vehicle frame of tractor, and traction frame is arranged at the vehicle frame side adjacent to tractor of trailer；
Draw bar is provided with the first connection end and second and connects end, first connects end is rotationally connected with traction frame, second connects end arranges main connecting hole, traction frame is provided with the secondary connecting hole mated with main connecting hole, latch is through main connecting hole, secondary connecting hole, and second connects end is rotationally connected with traction frame by latch.
The beneficial effect of such scheme:
This utility model provides a kind of tractor trailer drive train, directly utilize the transmission case of tractor as power output source, by the rear-mounted power output shaft of transmission case, power is passed to trailer drive axle by power transmission shaft, and then drive the trailer wheels of trailer to move, thus realize utilizing trailer to drive.By the cooperation of each drive disk assembly, form the linkage of the wheel of tractor rear wheel and trailer, form a complete drive system.This tractor trailer drive train has the advantage that compared with driving tractor with existing trailer wheels
1, owing to using the rear-mounted power output shaft of the transmission case of tractor to draw power, trailer is independent cargo carrier, thus, tractor be there is no bigger change, it is convenient to mounting or dismounting trailer or change other agricultural machinery and implement.
2, use universal drive shaft to carry out transmission between rear-mounted power output shaft and the change speed gear box of trailer of tractor, it is ensured that the radius of turn that Tractor-trailer combinatios can minimize, improve and turn or upper and lower adaptability when jolting.
3, the variable-speed operating control mechanism of the change speed gear box of trailer is remotely to be controlled by electromagnetic valve or small-sized hydraulic oil cylinder, and operating control handle is arranged on tractor, so that the speed of trailer controls convenient.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, the accompanying drawing used required in embodiment will be briefly described below, it is to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope it is not construed as, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other relevant accompanying drawings according to these accompanying drawings.
The schematic front view of the tractor trailer drive train that Fig. 1 provides for this utility model embodiment；
The schematic top plan view of the tractor trailer drive train that Fig. 2 provides for this utility model embodiment；
Fig. 3 shows the structural representation of load link in the tractor trailer drive train that this utility model embodiment provides；
Fig. 4 shows the structural representation of the draw bar in the tractor trailer drive train that this utility model embodiment provides；
Fig. 5 shows the structural representation of draw bar that Fig. 4 provides and the connection status of traction frame.
Description of reference numerals:
Trailer 101；Power transmission shaft 102；Tractor 103；Load link 104；
Trailer drive axle 105；Speed change output shaft 106；Change speed gear box 107；Transmission input shaft 108；Fixing seat 109；Rear-mounted power output shaft 110；Trailer wheels 201；Tractor rear wheel 202；Transmission case 203；Radix Rumicis universal joint 210；Line shaft 220；Candan universal joint 230；Latch 311；Traction frame 312；Draw bar 313；Traction frame 314；First connects end 315；Second connects end 316；Main connecting hole 317.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is a part of embodiment of this utility model rather than whole embodiments.Generally can with various different configurations arrange and design with the assembly of this utility model embodiment that illustrate described in accompanying drawing herein.Therefore, the detailed description to the embodiment of the present utility model provided in the accompanying drawings is not intended to limit claimed scope of the present utility model below, but is merely representative of selected embodiment of the present utility model.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
It should also be noted that similar label and letter represent similar terms in following accompanying drawing, therefore, the most a certain Xiang Yi accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " interior " are based on orientation shown in the drawings or position relationship, or this utility model product orientation usually put or position relationship when using, it is for only for ease of description this utility model and simplifies description, rather than instruction or the device of hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " is led ", " secondary " etc. is only used for distinguishing and describes, and it is not intended that instruction or hint relative importance.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " is arranged ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood with concrete condition.
Refering to Fig. 1 to Fig. 3, present embodiments provide a kind of tractor trailer drive train 100 and include: trailer 101, power transmission shaft 102, be provided with the tractor 103 of transmission case 203, load link 104 and trailer drive axle 105.
Tractor 103 is provided with transmission case 203 and the tractor rear wheel 202 driven by transmission case 203.
Trailer drive axle 105 is fixed on trailer 101, and trailer 101 is provided with trailer wheels 201, and is driven operating by trailer drive axle 105.
Transmission case 203 is connected composition tractor 103 with clutch assembly, electromotor etc., and transmission case 203 is provided with rear-mounted power output shaft 110, and rear-mounted power output shaft 110 is connected with trailer drive axle 105 by power transmission shaft 102.The power of transmission case 203 through rear-mounted power output shaft 110, power transmission shaft 102 and trailer drive axle 105 drive trailer wheels 201 and with tractor rear wheel 202 run-in synchronism.
Tractor 103 also sets up power output clutch (not drawing in figure), power output clutch is used for controlling rear-mounted power output shaft 110 and exports power to trailer 101 or do not export power to trailer 101, so that the power of tractor 103 can be better profited from, reduce unnecessary loss.When making rear-mounted power output shaft 110 stop output power by the power output clutch control transmission case 203 of tractor 103, power transmission shaft 102 quits work.Now, tractor trailer drive train 100 is only driven (tractor rear wheel 202 drives) by tractor 103.
Tractor trailer drive train 100 is in addition to can carrying out tractor rear wheel 202 type of drive, it is also possible to simultaneously driven by tractor 103 and trailer 101.Now, the power output clutch of tractor 103 controls transmission case 203 makes rear-mounted power output shaft 110 export power and be passed to the trailer drive axle 105 of trailer 101, and then drive the trailer wheels 201 of trailer 101 to move, thus realize tractor and drive and the Two-wheeled mode of trailer driving (tractor rear wheel and trailer wheels drive).
Owing to tractor trailer drive train 100 can use the dual-driving-mode that tractor rear wheel 202 drives and trailer wheels 201 drives to move, motility, stability and load capacity during its motion are improved.
When road surface is muddy or skids, when being short of power to drive tractor trailer drive train 100 to move of tractor 103, the power of tractor 103 can be passed to trailer 101, realize tractor rear wheel 202 and trailer wheels 201 simultaneously drives, so as to provide more sufficient pull strength to move.In like manner, when being susceptible to tractor 103 nose in the case of heavy duty is climbed, the only tractor rear wheel 202 by tractor 103 drives and is also difficult to move ahead.Now, the trailer wheels 201 that can make trailer 101 drives work, so as to normal forward.
Due to tractor trailer drive train 100 be used for that road is narrow, the gradient is big, the little complex environment many again of bend, the situations such as therefore, it often turns, jolt.If using the kind of drive of rigidity, it is difficult to meet adaptation bend and reduce the demand jolted.Considering based on above-mentioned situation, power transmission shaft 102 uses universal drive shaft, to realize Flexible Transmission, such that it is able to when turning or jolting, unloaded by universal drive shaft or cushioning effect power, to realize the even running of tractor trailer drive train 100.
Specifically, universal drive shaft includes Radix Rumicis universal joint 210, line shaft 220 and the candan universal joint 230 being sequentially connected with, and Radix Rumicis universal joint 210 is also connected with rear-mounted power output shaft 110, and candan universal joint 230 is also connected with trailer drive axle 105.Universal drive shaft can be carried out the complicated motions such as torsion, thus improve the stability turned to while keeping power transmission.
It addition, needs based on speed change, tractor trailer drive train 100 also includes change speed gear box 107, transmission input shaft 108 and speed change output shaft 106.Wherein, change speed gear box 107 is arranged at trailer 101, and the two ends of transmission input shaft 108 input with candan universal joint 230, change speed gear box 107 respectively is connected, and the outfan of change speed gear box 107 is connected with trailer drive axle 105 by speed change output shaft 106.It is preferred that speed change output shaft 106 may be used without universal drive shaft, to improve the stability of trailer 101 during trailer 101 drives.
When the linear velocity of the wheel line speed of trailer wheels 201 of trailer 101 and the tractor rear wheel 202 of tractor 103 is inconsistent, parasitic power can be produced, thus cause the consumption of energy, and the kinetic stability also resulting in tractor trailer drive train 100 declines.The speed of the rotation that therefore, it can the tractor rear wheel 202 of the trailer wheels 201 to trailer 101 and tractor 103 is controlled, in order to both preferably mate, so that the utilization rate of the power of tractor 103 is higher.
Such as, tractor trailer drive train 100 can be provided for controlling the variable-speed operating control mechanism (not drawing in figure) of change speed gear box 107.Specifically, variable-speed operating control mechanism includes control handle and the control piece being mutually matched.Control handle is arranged at tractor 103, and control piece is arranged at trailer 101 and is connected with stick, the control handle of change speed gear box 107 respectively.Control piece can use electromagnetic valve or hydraulic jack.It is consistent with the linear velocity of the tractor rear wheel 202 of tractor 103 that variable-speed operating control mechanism can control the linear velocity of the trailer wheels 201 of trailer 101, in order to eliminates parasitic power.It addition, adjusting trailer 101 by speed changing control mechanism is to advance or retreat, in order to the motion advanced or retreat with tractor 103 is consistent, so that the power service efficiency of tractor trailer drive train 100 is higher.
When containing weight, or in uphill, downhill, or when significantly turning, tractor trailer drive train 100 can bear bigger active force, and tractor 103 and trailer 101 are arranged relatively independently, then tractor 103 and trailer 101 can twist, and then may cause rear-mounted power output shaft 110 and power transmission shaft 102 stress is excessive and situation about damaging.
During for reducing and turning or jolt, rear-mounted power output shaft 110 and the infringement of power transmission shaft 102, the vehicle frame of trailer 101 are rotationally connected by the vehicle frame of load link 104 with tractor 103.Being provided with of load link 104 beneficially keeps relatively stable and firm connection between tractor 103 and trailer 101, avoid the pullling or reversing by extraneous excessive active force of each drive disk assembly simultaneously, thus improve the service life of tractor trailer drive train 100 entirety.
Specifically, load link 104 includes: traction frame 312, traction frame 314, latch 311 and draw bar 313, traction frame 312 is arranged at the neighbouring side arranging trailer 101 of vehicle frame of tractor 103, and traction frame 314 is arranged at the vehicle frame of trailer 101 adjacent to the side of tractor 103.
Refering to Fig. 4, Fig. 5, draw bar 313 is provided with the first connection end 315 and second and connects end 316.First connects end 315 is rotationally connected with traction frame 314.Second connects end 316 arranges main connecting hole 317, and traction frame 312 is provided with the secondary connecting hole mated with main connecting hole 317, and the second connection end 316 is connected with traction frame 312 by latch 311 through main connecting hole 317, secondary connecting hole.
Traction frame 312 is made up of base plate and two side plates, and is U-shaped structure.Secondary connecting hole is stretched in the traction frame 312 of U-shaped structure through two side plates, the second connection end 316 of draw bar 313, and is connected with traction frame 312 by latch 311.One end of traction frame 314 is fixing with trailer 101 to be connected, and the other end is rotationally connected with draw bar 313.
Traction frame 312 is fixed on the transmission case 203 of tractor 103；Traction frame 314 is solderable on the vehicle frame of trailer 101, or one-body molded with the vehicle frame of trailer 101.
Further, tractor trailer drive train 100 is additionally provided with fixing seat 109, and fixing seat 109 is connected with load link 104.Fixing seat 109 arranges rotation hole, and transmission input shaft 108 is rotationally connected through rotation hole with fixing seat 109.Transmission input shaft 108 is played position-limiting action by fixing seat 109, is possible to prevent transmission input shaft 108 that rocking by a relatively large margin occurs, and improves stability when transmission input shaft 108 transmits power.
Transmission input shaft 108 is in rotation when working, and when friction between itself and fixing seat 109 is bigger, can produce bigger noise and even cause abrasion, and then cause the damage of transmission input shaft 108.Therefore, tractor trailer drive train 100 is additionally provided with bearing, and bearing is arranged in rotation hole, and transmission input shaft 108 is rotationally connected through bearing with fixing seat 109.Utilize bearing to connect transmission input shaft 108 and fixing seat 109, the rotational stability of transmission input shaft 108 can be improved, reduce the noise caused by friction.
Due to trailer 101 and tractor 103 relatively independent arrange, both are mainly connected by load link 104, and carry out transmission by power transmission shaft 102, and therefore, the separation of trailer 101 and tractor 103 is the easiest.Refering to Fig. 2, Fig. 3, when needs are changed or dismantle trailer 101, make the draw bar 313 in load link 104 and traction frame 312, and power transmission shaft 102 is separated with transmission input shaft 108, rear-mounted power output shaft 110 respectively.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (10)
1. a tractor trailer drive train, including trailer and the tractor being provided with transmission case, it is characterized in that, described tractor trailer drive train also includes: power transmission shaft and trailer drive axle, described trailer drive axle is fixed on described trailer, described transmission case is provided with rear-mounted power output shaft, described rear-mounted power output shaft is connected with described trailer drive axle by described power transmission shaft, the power of described transmission case is through described rear-mounted power output shaft, described power transmission shaft and trailer drive axle drive trailer trailer wheels and with the trailing wheel run-in synchronism of tractor.
Tractor trailer drive train the most according to claim 1, it is characterized in that, described power transmission shaft includes universal drive shaft, described universal drive shaft includes Radix Rumicis universal joint, line shaft and the candan universal joint being sequentially connected with, described Radix Rumicis universal joint is connected with described rear-mounted power output shaft away from one end of described line shaft, and described candan universal joint is connected with described trailer drive axle away from one end of described line shaft.
Tractor trailer drive train the most according to claim 2, it is characterised in that described tractor trailer drive train also includes change speed gear box, transmission input shaft, speed change output shaft and for controlling the variable-speed operating control mechanism of described change speed gear box；
Described change speed gear box is arranged at described trailer, and the two ends of described transmission input shaft input with described candan universal joint, described change speed gear box respectively is connected, and the outfan of described change speed gear box is connected with described trailer drive axle by described speed change output shaft.
Tractor trailer drive train the most according to claim 3, it is characterized in that, described variable-speed operating control mechanism includes: the control handle being mutually matched and control piece, described control handle is arranged at described tractor, and described control piece is arranged at the described trailer stick respectively with described control handle, described change speed gear box and is connected.
Tractor trailer drive train the most according to claim 4, it is characterised in that described control piece includes electromagnetic valve or hydraulic jack.
Tractor trailer drive train the most according to claim 1, it is characterised in that described tractor is provided with and controls whether described rear-mounted power output shaft exports the power output clutch of power.
7., according to the tractor trailer drive train one of claim 3 to 5 Suo Shu, it is characterised in that described tractor trailer drive train also includes: load link, the vehicle frame of described trailer is rotationally connected by the vehicle frame of described load link with described tractor.
Tractor trailer drive train the most according to claim 7, it is characterized in that, described tractor trailer drive train also includes: fixing seat, described fixing seat is connected with described load link, described fixing seat arranges rotation hole, and described transmission input shaft is rotationally connected through described rotation hole with described fixing seat.
Tractor trailer drive train the most according to claim 8, it is characterised in that described tractor trailer drive train also includes: bearing, described bearing is arranged in described rotation hole, and described transmission input shaft is rotationally connected through described bearing with described fixing seat.
Tractor trailer drive train the most according to claim 7, it is characterized in that, described load link includes: traction frame, traction frame, latch and draw bar, described traction frame is arranged at the vehicle frame of described tractor adjacent to the side of described trailer, and described traction frame is arranged at the vehicle frame of described trailer adjacent to the side of described tractor；
Described draw bar is provided with the first connection end and second and connects end, described first connects end is rotationally connected with described traction frame, described second connects end arranges main connecting hole, described traction frame is provided with the secondary connecting hole mated with described main connecting hole, described latch is through described main connecting hole, described secondary connecting hole, and described second connects end is rotationally connected with described traction frame by latch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620260789.9U CN205523691U (en) | 2016-03-30 | 2016-03-30 | Tractor trailer driving unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620260789.9U CN205523691U (en) | 2016-03-30 | 2016-03-30 | Tractor trailer driving unit |
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| Publication Number | Publication Date |
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| CN205523691U true CN205523691U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620260789.9U Active CN205523691U (en) | 2016-03-30 | 2016-03-30 | Tractor trailer driving unit |
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| CN (1) | CN205523691U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105857068A (en) * | 2016-03-30 | 2016-08-17 | 四川川龙拖拉机制造有限公司 | Tractor trailer driving unit |
-
2016
- 2016-03-30 CN CN201620260789.9U patent/CN205523691U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105857068A (en) * | 2016-03-30 | 2016-08-17 | 四川川龙拖拉机制造有限公司 | Tractor trailer driving unit |
| CN105857068B (en) * | 2016-03-30 | 2018-08-21 | 四川川龙拖拉机制造有限公司 | A kind of tractor trailer drive train |
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