CN202413418U - Front transmission shaft structure for front wheel drive and rear wheel drive vehicles - Google Patents
Front transmission shaft structure for front wheel drive and rear wheel drive vehicles Download PDFInfo
- Publication number
- CN202413418U CN202413418U CN2012200059529U CN201220005952U CN202413418U CN 202413418 U CN202413418 U CN 202413418U CN 2012200059529 U CN2012200059529 U CN 2012200059529U CN 201220005952 U CN201220005952 U CN 201220005952U CN 202413418 U CN202413418 U CN 202413418U
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- Prior art keywords
- transmission shaft
- shaft
- lid
- compressing tablet
- friction lining
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- Expired - Fee Related
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Abstract
The utility model relates to a transmission shaft in a vehicle power transfer system, in particular to a front transmission shaft structure for front wheel drive and rear wheel drive vehicles. The front transmission shaft structure comprises a transmission shaft which transfers power to front wheels and an overload protector, the transmission shaft comprises a first shaft and a second shaft, the overload protector comprises a plurality of pressure plates fixedly connected with the first shaft and a plurality of friction plates fixedly connected with the second shaft, the pressure plates are clamped on the friction plates, and the first shaft and the second shaft transfer forces through the friction action between the pressure plates and the friction plates. The front transmission shaft structure for the front wheel drive and rear wheel drive vehicles can stop transferring power when the load is excessive and resume transferring power when the load complies with the requirements, and solves the problem in the traditional design method that an instant impact on the front wheels results in the breakage of a front transmission shaft or a front half shaft, thereby increasing the use cost of a vehicle and troubling users.
Description
Technical field
The utility model relates to the transmission shaft in the vehicle power transmission system, relates in particular to an a kind of forward and backward anterior transmission shaft structure of driving.
Background technology
Enough propulsive efforts are arranged when making vehicle ' on the lower road surface of adhesive ability coefficient, usually the power-transmission system of vehicle is designed to the type of drive that front-wheel and trailing wheel can both drive.Especially lorry can often go on the road surface of road conditions difference, adopts forward and backward mode of driving more.
The power that a forward and backward power transfer path of driving is a driving engine passes to auxiliary gear box earlier, and auxiliary gear box is two-way output with power distribution: the one tunnel for to go drive front axle to front propeller shaft, and propons removes to drive front-wheel through half front axle; Another road is for to go driving rear axle to rear propeller shaft, and back axle removes to drive trailing wheel through half-rear axle.For the compact car that is provided with independent suspension system, do not design propons, front propeller shaft is directly to remove to drive front-wheel.
Do not design auxiliary gear box in the vehicle that has, carry out power distribution but substitute auxiliary gear box with a combined speed changer.The Chinese invention patent publication number be 101659211A, open date are March 3 in 2010 day, be called and disclose an a kind of power output structure of driving in the patent documentation of " the forward and backward propulsive effort export structure of the automobile and tractor of no independent transfer case (auxiliary gear box) " through the alternative auxiliary gear box of combined speed changer forward and backward.
No matter which kind of power output structure forward and backward driven; All be that big young pathbreaker's front propeller shaft, half front axle, rear propeller shaft and half-rear axle according to load is designed to have corresponding stress-bearing capability during design; If front-wheel or trailing wheel stressed is during greater than setting value; Then cooresponding transmission shaft or semiaxis will rupture; The parts such as bridge, auxiliary gear box and driving engine before and after the hurt to prevent overload (because in whole power output system, the cost of transmission shaft is minimum and most convenient when changing, so in the time must not selecting one of hurt, first-selection is a transmission shaft by hurt).But when vehicle turns round or go when front-wheel is fallen into pit on having the road surface of pit, front-wheel can receive the impact of moment, also is the moment overload, this moment overload can cause front propeller shaft or half front axle fracture.This kind moment overload is not that navigating mate itself can be avoided through the control load carrying ability; Moment overload and cause the fracture of front propeller shaft or half front axle neither the designer needed, but the design defect of a medium-term and long-term existence of vehicle design with the user; Moreover; The design that when vehicle transships, can cause the damage of transmission shaft; Be the medium-term and long-term a kind of technological prejudice that exists of vehicle power transmission system design; If transmission shaft ruptures in the open air, then vehicle is delivered to repair plant or please the maintainer will be higher than an own Master Cost far away to the on-the-spot artificial transport cost of spending of keeping in repair, so this design philosophy caused the vehicle use cost increase, brought very big inconvenience to the user.
The utility model content
A forward and backward anterior transmission shaft structure of driving that can stop to recover automatically when transferring power load meets the requirements transferring power when the utility model provides a kind of the overload, thus the problem that when front-wheel receives moment impact, can cause front propeller shaft or half front axle fracture to cause the vehicle use cost to increase in the existing design and make troubles to the user solved.
Above technical matters solves through following technical proposal: an a kind of forward and backward anterior transmission shaft structure of driving; Comprise that transferring power gives the transmission shaft of front-wheel; It is characterized in that; Also comprise overload protective device, said transmission shaft comprises that primary shaft and second, said overload protective device comprise some compressing tablets of being fixed on the said primary shaft and be fixed in the some friction linings on said second; Said compressing tablet is clamped on the said friction lining, and said primary shaft and second come transmission power through the rubbing effect between said compressing tablet and the said friction lining." anterior transmission shaft " is meant the general name that front propeller shaft and transferring power are given the semiaxis of front-wheel.During use, the friction force between compressing tablet and the friction lining is complementary, with the power of the required transmission of transmission shaft if load is lower than design value; Then primary shaft and second can rotate synchronously, if load high pressure design value makes, can skid between compressing tablet and the friction lining; Can not rotate synchronously between primary shaft and second; Also promptly stopped the transmission of power, in case and load reduces when meeting the requirements, then can recover transferring power automatically again.Therefore turn round or front-wheel drops in the hole and the instantaneous load that front-wheel is received when being higher than setting value when vehicle, can not cause the fracture of anterior transmission shaft, and not influence going of vehicle.
As preferably; Said overload protective device also comprises mounting box and makes compressing tablet push against spring together with said friction lining; Said mounting box comprise box body be detachably connected on the lid on the said box body, said primary shaft is fixed on the said lid, said compressing tablet, friction lining and spring all are positioned at said mounting box; Said second diapire that passes said box body; The inside face of said box side wall is provided with the draw-in groove that extends along the box body depth direction, and the edge of said compressing tablet is provided with the clamping convexity, and said clamping convexity is connected in the said draw-in groove.The design and installation box; Compressing tablet carries out affixed through the mount pad box with primary shaft; When the compressing tablet number change; Also can be fixed together with primary shaft easily, simultaneously mounting box has protective effect to compressing tablet and friction lining, can be because of in the vehicle ' process, owing to influencing the transmission of power effect between entering compressing tablet such as muddy dust and the friction lining.Can design primary shaft and second load capacity bigger; The power of the needed transmission of different vehicles is not simultaneously; Through changing friction lining and the quantity of compressing tablet or the size that spring is adjusted transmission power, so that the utility model can be complementary with the vehicle of different load capacitys.Commonality is good.During use, can be with lid or the double a slice compressing tablet of doing of box body.
As preferably, said primary shaft is provided with the axially extended axis hole along primary shaft with the end face of said lid bonded assembly one end, and said lid is provided with the through hole that connects the lid surfaces externally and internally, and said through hole is docking together with said axis hole.Second second the end that exceeds friction lining can be contained in the axis hole, makes mounting box can design compactlyer when being fixed together with friction lining, and it is little to take up room.
As preferably, said lid and said primary shaft weld together.The junction good planeness.
As preferably, said box body is in the same place through bolted connection with said lid.Be convenient to the follow-up maintenance of overload protective device.
As preferably, said compressing tablet has three, and said friction lining has two, and said compressing tablet and said friction lining alternately distribute.Can under the less situation of friction lining, the friction force between compressing tablet and the friction lining be met the requirements through the quantity that increases friction lining.The diameter of mount pad can design lessly, and is convenient when being installed on the vehicle.
The utlity model has following advantage; Constitute by primary shaft and second through anterior transmission shaft is designed to, carry out frictional transmission through overload protective device between two axles, therefore when transshipping, can stop the transmission of power; Can recover transferring power automatically during nonoverload; Avoid each parts of vehicle drive system when overload, to be damaged, reduced the vehicle operation cost, improved the comfort feature the when user uses.
Description of drawings
Fig. 1 is the split view of the utility model.
Fig. 2 is the cross-sectional schematic of the utility model.
Among the figure: front propeller shaft 1, primary shaft 11,111, the second 12 of axis holes, overload protective device 2, compressing tablet 21; Clamping convexity 211, friction lining 22, spring 23, mounting box 24, box body 241, lid 242; Mounting hole 243, muscle 244, draw-in groove 245, tapped bore 246, through hole 247, bolt 3.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Referring to Fig. 1, an a kind of forward and backward anterior transmission shaft structure of driving comprises front propeller shaft 1 and overload protective device 2.
Front propeller shaft 1 comprises primary shaft 11 and second 12.
Overload protective device 2 comprises three compressing tablets 21, two friction linings 22, four springs 23 and mounting boxs 24.
The edge of compressing tablet 21 is provided with three clampings protruding 211.
Referring to Fig. 2, the lower surface of primary shaft 11 is provided with the axially extended axis hole 111 along primary shaft 11.Lid 242 is provided with the through hole 247 that connects lid 242 surfaces externally and internallies.Through hole 247 is docking together with axis hole 111.
The method that the utility model is assembled together is: with second 12 diapire that passes box body 241 (box body 241 and second 12 between can relatively rotate); Four springs 23 vertically are placed in the box body 241; With three compressing tablets 21 and two friction linings 22 with range upon range of mode horizontal in box body 241; Three compressing tablets 21 and two friction linings 22 alternately distribute, and second 12 end that is positioned at box body 241 passes compressing tablet 21 and friction lining 22, and compressing tablet 21 is set on second 12.Can rotate with respect to compressing tablet 21 for second 12.Be fixed together through spline between friction lining 22 and second 12.Clamping on the compressing tablet 21 protruding 211 is stuck in the draw-in groove 245, makes compressing tablet 21 not contact between the sidewall of friction lining 22 with box body 241 relative to rotating with box body 241.Lid 242 is locked on the box body 241 through bolt 3, and spring 23 is squeezed, and compressing tablet 21 is clamped together with friction lining 22, and at this moment, second 12 upper end is contained in the axis hole 111 after passing through hole 247.
During use; Primary shaft 11 and second 12 one in the two with auxiliary gear box be connected, another person is connected (promptly substituting the front propeller shaft on the existing vehicle with the utility model) with propons, primary shaft 11 and second 12 come transmission power through the rubbing effect between compressing tablet 21 and the friction lining 22, when overload; Can skid between compressing tablet 21 and the friction lining 22; Feasible axle can not twisted off, and during nonoverload, compressing tablet 21 can rotate again with friction lining 22 synchronously; Perhaps primary shaft 11 and second 12 one in the two with propons be connected, another person is with front-wheel be connected (promptly substituting the half front axle on the existing vehicle with the utility model); Can certainly front propeller shaft and half front axle all be substituted with the utility model.
Claims (7)
1. forward and backward anterior transmission shaft structure of driving; Comprise that transferring power gives the transmission shaft of front-wheel, it is characterized in that, also comprise overload protective device; Said transmission shaft comprises primary shaft and second; Said overload protective device comprises some compressing tablets of being fixed on the said primary shaft and is fixed in the some friction linings on said second, and said compressing tablet is clamped on the said friction lining, and said primary shaft and second come transmission power through the rubbing effect between said compressing tablet and the said friction lining.
2. a forward and backward anterior transmission shaft structure of driving according to claim 1; It is characterized in that said overload protective device also comprises mounting box and make compressing tablet push against spring together with said friction lining that said mounting box comprises box body and is detachably connected on the lid on the said box body; Said primary shaft is fixed on the said lid; Said compressing tablet, friction lining and spring all are positioned at said mounting box, and said second diapire that passes said box body, the inside face of said box side wall are provided with the draw-in groove that extends along the box body depth direction; The edge of said compressing tablet is provided with the clamping convexity, and said clamping convexity is connected in the said draw-in groove.
3. a forward and backward anterior transmission shaft structure of driving according to claim 2; It is characterized in that; Said primary shaft is provided with the axially extended axis hole along primary shaft with the end face of said lid bonded assembly one end; Said lid is provided with the through hole that connects the lid surfaces externally and internally, and said through hole is docking together with said axis hole.
4. according to claim 2 or 3 described forward and backward anterior transmission shaft structures of driving, it is characterized in that said lid and said primary shaft weld together.
5. a forward and backward anterior transmission shaft structure of driving according to claim 4 is characterized in that said box body is in the same place through bolted connection with said lid.
6. according to claim 2 or 3 described forward and backward anterior transmission shaft structures of driving, it is characterized in that said box body is in the same place through bolted connection with said lid.
7. according to claim 1 or 2 or 3 described forward and backward anterior transmission shaft structures of driving, it is characterized in that said compressing tablet has three, said friction lining has two, and said compressing tablet and said friction lining alternately distribute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200059529U CN202413418U (en) | 2012-01-09 | 2012-01-09 | Front transmission shaft structure for front wheel drive and rear wheel drive vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200059529U CN202413418U (en) | 2012-01-09 | 2012-01-09 | Front transmission shaft structure for front wheel drive and rear wheel drive vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202413418U true CN202413418U (en) | 2012-09-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200059529U Expired - Fee Related CN202413418U (en) | 2012-01-09 | 2012-01-09 | Front transmission shaft structure for front wheel drive and rear wheel drive vehicles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202413418U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133550A (en) * | 2013-02-07 | 2013-06-05 | 福建合众机械有限公司 | Axial locking type overload protection shaft |
| CN106347120A (en) * | 2015-07-17 | 2017-01-25 | 邓召朋 | Gear clutch synchronous protection mechanism of mechanical four-wheel drive transmission shaft |
| CN109723732A (en) * | 2018-12-21 | 2019-05-07 | 安徽农业大学 | A kind of tractor motive power output shaft overload protection arrangement |
-
2012
- 2012-01-09 CN CN2012200059529U patent/CN202413418U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133550A (en) * | 2013-02-07 | 2013-06-05 | 福建合众机械有限公司 | Axial locking type overload protection shaft |
| CN103133550B (en) * | 2013-02-07 | 2015-03-25 | 福建合众机械有限公司 | Axial locking type overload protection shaft |
| CN106347120A (en) * | 2015-07-17 | 2017-01-25 | 邓召朋 | Gear clutch synchronous protection mechanism of mechanical four-wheel drive transmission shaft |
| CN109723732A (en) * | 2018-12-21 | 2019-05-07 | 安徽农业大学 | A kind of tractor motive power output shaft overload protection arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FUJIAN HEZHONG MACHINERY CO., LTD. Effective date: 20130107 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130107 Address after: 354209 Nanping City, Fujian city of Jianyang Province Zhang Dun Zhen Jie Keng Cun Gan Yang Group No. 23 Patentee after: Chen Xuefu Patentee after: Fujian Hezhong Machinery Co., Ltd. Address before: 354209 Nanping City, Fujian city of Jianyang Province Zhang Dun Zhen Jie Keng Cun Gan Yang Group No. 23 Patentee before: Chen Xuefu |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160614 Address after: 354200 No. 176 Renmin Road, Jilin town, Jianyang District, Fujian, Nanping Patentee after: NANPING CITY JIANYANG DISTRICT AUTO FORGING PARTS FACTORY Address before: 354209 Nanping City, Fujian city of Jianyang Province Zhang Dun Zhen Jie Keng Cun Gan Yang Group No. 23 Patentee before: Chen Xuefu Patentee before: Fujian Hezhong Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20210109 |