CN204279617U - A kind of the telescopic of splined surfaces injection moulding rete turns to lower drive shaft assembly - Google Patents
A kind of the telescopic of splined surfaces injection moulding rete turns to lower drive shaft assembly Download PDFInfo
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- CN204279617U CN204279617U CN201420737524.4U CN201420737524U CN204279617U CN 204279617 U CN204279617 U CN 204279617U CN 201420737524 U CN201420737524 U CN 201420737524U CN 204279617 U CN204279617 U CN 204279617U
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- telescopic
- shaft assembly
- rete
- joint yoke
- spline
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Abstract
The utility model relates to a kind of the telescopic of splined surfaces injection moulding rete and turns to lower drive shaft assembly, it is characterized in that, described driving-shaft assembly comprises lower cardan fork, universal joint cross-head, universal joint cross-head, apply mechanically joint yoke, joint yoke, upper cardan is pitched, described lower cardan fork by universal joint cross-head with apply mechanically joint yoke and be connected, described joint yoke to be pitched with upper cardan by universal joint cross-head and is connected, described driving-shaft assembly also comprises telescopic driving device, described telescopic driving device is arranged on to be applied mechanically between joint yoke and joint yoke.This device makes automobile in the process of moving due to the good rebound resilience of castellated shaft flank of tooth nylon injection-molding rete and resistance to abrasion, the low roughness of matching spline cover inner toothed surface and low-friction coefficient, flexible spline is made to be in tight engagement for a long time, prevent abnormal sound, add the safety performance of running car.
Description
Technical field
The utility model relates to a kind of the telescopic of splined surfaces injection moulding rete and turns to lower drive shaft assembly, belongs to automobile steering transmission device technical field.
Background technology
Current automobile steering transmission device combines primarily of bearing circle, steering shaft, steering column, turns to the compositions such as lower drive shaft assembly, steering wheel.Turn to lower drive shaft assembly to be the important component part of automobile steering transmission device, it connect steering shaft, under connect steering wheel, its function is mainly transmitted and is turned to alternate torque.Telescopicly turn to lower drive shaft assembly, two ends adopt the joint yoke of spline form, upper end joint yoke is connected with steering shaft lower end male splines by female splines, lower end joint yoke is connected with traversing pinion axle male splines by female splines, upper cardan fork is connected by universal joint cross-head and castellated shaft, lower cardan fork is connected with spline housing combination by universal joint cross-head, and castellated shaft can free-extension in spline housing.Automobile needs often adjustment in the process of moving and changes travel direction, when pilot control bearing circle, by steering shaft, alternate torque is passed to lower drive shaft, through steering wheel, power is transferred to the steering swivel of steeraxle both sides again, make wheel flutter angle of inclination by certain relationship change, realize wheel steering.
The existing telescopic lower drive shaft assembly that turns to mainly contains three kinds of versions, and one is that spline housing end is evenly arranged four open slots, adopts steel band clip to be held tightly; Another kind adopts steel ball ball-type structure, by adjustment steel ball size during assembling, reaches the object meeting spline fitted gap; Also have one to be apply one deck nylon rete at castellated shaft outside face or spline housing inside face, carry out thereafter pushing away and mould processing with the reasonable coordination gap ensureing free-sliding spline.The common fault of above-mentioned three kinds of structures exceedes certain mileage when running car, especially when jolting road traveling, easily causes violent vibrations, under the effect of reverse load, accelerates the wearing and tearing of related components, the especially wearing and tearing of free-sliding spline.Therefore, how to improve quality of fit and the resistance to abrasion of flexible spline male part, make it to be in tight engagement all the time in automobile normal running process, prevent that excessive abrasion becomes the technical matters that those skilled in the art think solution always to the potential safety hazard that running car brings, therefore, solve the problems of the technologies described above in the urgent need to a kind of new scheme.
Summary of the invention
The utility model, for problems of the prior art, provides a kind of the telescopic of splined surfaces injection moulding rete to turn to lower drive shaft assembly, this device compact overall structure, simple and practical, easy to operate.This device makes automobile in the process of moving because flexible spline male part is adopted new technology manufacture, quality of fit is effectively ensured, wear resisting property is greatly improved, make free-sliding spline can be in tight engagement for a long time, automobile is made to prevent excessive gaps during use, prevent abnormal sound, service life extends greatly, adds the safety performance of running car.
To achieve these goals, the technical solution adopted in the utility model is: a kind of the telescopic of splined surfaces injection moulding rete turns to lower drive shaft assembly, it is characterized in that, described driving-shaft assembly comprises lower cardan fork, universal joint cross-head, universal joint cross-head, apply mechanically joint yoke, joint yoke, upper cardan is pitched, described lower cardan fork by universal joint cross-head with apply mechanically joint yoke and be connected, described joint yoke to be pitched with upper cardan by universal joint cross-head and is connected, described driving-shaft assembly also comprises telescopic driving device, described telescopic driving device is arranged on to be applied mechanically between joint yoke and joint yoke.
As of the present utility model one improve, described telescopic driving device comprises spline housing, castellated shaft, described in apply mechanically joint yoke and spline housing weld together, castellated shaft right-hand member milling ray flower key and joint yoke female splines are bolted; Described telescopic driving device also comprises cover of dust, and described cover of dust fixes on spline housing.
Improve as one of the present utility model, described castellated shaft two ends adopt the invoice serration of different modulus, and left end is telescopic end, and spline tooth surface adopts nylon injection-molding rete, and right-hand member is coupling end, and spline adopts a side milling limit; Castellated shaft left end nylon injection-molding rete spline tooth can in spline housing free-extension, and keep certain sliding resistance.Castellated shaft male splines described in this technical scheme adopts cold-extrusion shaping, the left end spline tooth that stretches adopts nylon injection-molding rete, its effect is because nylon itself has very high intensity, the tensile strength of injection molding nylon is 368MPa, compression strength is 695 MPa, and bending strength is 790 MPa, can replace steel part completely, load can be born for a long time, not easy to wear; Nylon injection-molding rete has good rebound resilience, and spline involute surface permanent deformation can not occur, and keeps the fracture that toughness produces due to repeated stock load with opposing; Nylon injection-molding rete comparatively steel part noise is low, can reduce noise, eliminates the abnormal sound that rigid clearance collision produces; Water-fast, the salt spray resistance of nylon injection-molding rete, weather resistance is good, can adapt to the driving conditions in different regions.
Improve as one of the present utility model, described spline housing female splines adopts seamless pipe precision to swage once-forming, tooth proportions precision is high, mechanical property is good, the flank of tooth is bright and clean, and roughness is low, and coefficient of sliding resistance is little, effectively increase intensity and the hardness of part, improve the reliability of part time job.Spline housing right-hand member cylindrical arranges Baltimore groove, uses as fixing cover of dust.
Improve as one of the present utility model, described cover of dust adopts nylon injection-molding to be shaped, cover of dust left end endoporus coordinates with spline housing cylindrical, well-distributed hypotenuse card muscle is everywhere set in hole, with spline housing cylindrical right-hand member recess, as the use of fixing, cover of dust right-hand member endoporus coordinates, as dust-proof use with castellated shaft light cylindrical.
Relative to prior art, advantage of the present utility model is as follows: 1) unit design is simple, practical and reliable, disassembly and assembly convenient maintenance and replacement, and cost is lower; 2) castellated shaft spline tooth surface adopts nylon injection-molding rete, dimensionally stable, eliminate coating nylon layer and must carry out follow-uply pushing away the requirement of moulding processing, and spline tooth effective length of fit in spline meets safely the stability requirement that spline stretches; 3) spline housing female splines to be swaged shaping owing to adopting precision, and the flank of tooth is bright and clean, and sliding resistance is little, intensity and hardness improve, and resistance to abrasion is good, make free-sliding spline permanently effective can be in tight engagement, add the safety performance of running car, extend the service life of running car.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of castellated shaft;
Fig. 3 is the schematic diagram of spline housing;
The schematic diagram of Fig. 4 cover of dust;
Wherein, 1, lower cardan fork, 2, universal joint cross-head, 3, joint yoke is applied mechanically, 4, spline housing, 5, castellated shaft, 6, cover of dust, 7, joint yoke, 8, universal joint cross-head, 9, upper cardan fork, 10, nylon injection-molding rete, 11, face, castellated shaft milling limit, 12, spline housing Baltimore groove, 13, cover of dust hypotenuse card muscle.
Detailed description of the invention
In order to deepen understanding and cognition of the present utility model, below in conjunction with accompanying drawing utility model be further described and introduce.
embodiment 1:as Fig. 1, a telescopic lower steering inner articulated shaft assembly for splined surfaces injection moulding rete, described driving-shaft assembly comprise lower cardan fork 1, universal joint cross-head 2, universal joint cross-head 8, apply mechanically joint yoke 3, spline housing 4, castellated shaft 5, joint yoke 7, upper cardan fork 9.Described joint yoke 1 by universal joint cross-head 2 with apply mechanically joint yoke 3 and be connected, described joint yoke 7 is pitched 9 by universal joint cross-head 8 with upper cardan and is connected, described driving-shaft assembly also comprises telescopic driving device, and described telescopic driving device is arranged on to be applied mechanically between joint yoke 3 and joint yoke 7.This technical scheme compact conformation, design ingenious, resistance to abrasion is good, and what make that free-sliding spline can be permanently effective is in tight engagement, adds the safety performance of running car.
embodiment 2:as shown in Figure 1, Figure 2, improve as one of the present utility model, described telescopic driving device comprises spline housing 4, castellated shaft 5, cover of dust 6, describedly apply mechanically joint yoke 3 with spline housing 4 by being welded to connect, cover of dust 6 fixes on spline housing 4, and the flat spline of described castellated shaft 5 right-hand member milling and joint yoke (7) female splines are bolted.Castellated shaft 5 can free-extension in spline housing 4, and keeps certain sliding resistance.All the other structures are identical with embodiment 1 with advantage.
embodiment 3: as shown in Figure 1, Figure 2, improve as one of the present utility model, the two ends of described castellated shaft 5 adopt the invoice serration of different modulus, left end is telescopic end, spline tooth surface adopts nylon injection-molding rete 10, right-hand member is coupling end, and spline adopts a side milling limit 11, and two ends spline tooth all adopts cold-extrusion shaping.The left end spline flank of tooth that stretches adopts nylon injection-molding rete 10, and its effect is that the tensile strength of injection molding nylon is 368MPa because nylon itself has very high intensity, compression strength is 695 MPa, and bending strength is 790 MPa, can replace steel part completely, load can be born for a long time, not easy to wear; Nylon injection-molding rete has good rebound resilience, and spline involute surface permanent deformation can not occur, and keeps the fracture that toughness produces due to repeated stock load with opposing; Nylon injection-molding rete comparatively steel part noise is low, can reduce noise, eliminates the abnormal sound that rigid clearance collision produces; Water-fast, the salt spray resistance of nylon injection-molding rete, weather resistance is good, can adapt to the driving conditions in different regions.Right-hand member connects spline and adopts a side milling limit 11, is used as the fastening of bolt and regulates when its effect is and is connected with joint yoke 7 female splines; This technical scheme have employed nylon injection-molding rete due to flexible spline tooth surface, effectively increase the toughness of the flank of tooth, reduce the coefficient of sliding resistance of the flank of tooth, make free-sliding spline can be in tight engagement for a long time, thus improve the safety performance of running car, extend the service life of running car.All the other structures are identical with embodiment 1 with advantage.
embodiment 4: as Fig. 1, Fig. 3, improve as one of the present utility model, described spline housing 4 female splines adopts seamless pipe precision to swage once-forming, tooth proportions precision is high, the flank of tooth is bright and clean, and roughness is low, and coefficient of sliding resistance is little, mechanical property is good, add intensity and the hardness of part, make flexible spline can be in tight engagement for a long time, spline housing 4 cylindrical right-hand member arranges Baltimore groove 12, effect is used to fixing cover of dust 6, and all the other structures are identical with embodiment 1 with advantage.
embodiment 5:as shown in Figure 1, Figure 2, Fig. 3, Fig. 4, improve as one of the present utility model, described cover of dust 6 adopts nylon injection-molding to be shaped, cover of dust left end endoporus and spline housing 4 right-hand member cylindrical match, arrange the hypotenuse card muscle 13 of uniform arrangement everywhere in hole with spline housing 4 outer round recessed 12 correspondence position, match with the outer round recessed 12 of spline housing 4, cover of dust 6 is fixed on spline housing 4, cover of dust 6 right-hand member endoporus and castellated shaft 5 polished rod cylindrical match, and play the effect of gear dust.All the other structures are identical with embodiment 1 with advantage.
principle of work:
With reference to Fig. 1-Fig. 4, the technical program provides a kind of the telescopic of splined surfaces injection moulding rete and turns to lower drive shaft assembly, in this technical scheme, castellated shaft 5 two ends invoice serration adopts cold-extrusion technology to be shaped, left end stretches, and spline tooth is surperficial adopts nylon injection-molding rete, cover of dust 6 is nylon injection-molding part, and spline housing 4 inner spline gear adopts precision to swage shaping; See Fig. 2, castellated shaft 5 two ends are designed to the invoice serration of different modulus, be made through cold-extrusion technology, left end stretches, and spline tooth is surperficial adopts nylon injection-molding rete 10, dimensionally stable is reliable, eliminate the requirement of the necessary following process of coated technique, right-hand member spline joint end spline adopts a side milling limit 11, reaches and is connected and the requirement of locking with joint yoke 7 female splines; See Fig. 3, spline housing 4 female splines adopts seamless pipe precision to swage once-forming, and tooth proportions precision is high, and mechanical property is good, the flank of tooth is bright and clean, roughness is low, and coefficient of sliding resistance is little, effectively increases intensity and the hardness of part, improve the reliability of part time job, can be in tight engagement for a long time after spline is coupled, spline housing right-hand member cylindrical arranges Baltimore groove 12, uses as fixing cover of dust 6; See Fig. 4, cover of dust 6 adopts nylon injection-molding to be shaped, left end endoporus uniform hypotenuse everywhere card muscle 13, as being fixed in the outer round recessed 12 of spline housing 4, right-hand member endoporus and castellated shaft 5 light circle match, as dust-proof use, castellated shaft 5 during fore and aft motion, is in tight engagement all the time in spline housing 4, due to the effect of nylon elastic, eliminate the abnormal sound that rigid clearance collision produces, thus effectively improve the safety performance of running car, extend the service life of running car.
At least one in technical characteristic described in embodiment 2,3,4,5 and embodiment 1 can also be combined to form new case study on implementation by the utility model.
It should be noted that above-described embodiment, be not used for limiting protection domain of the present utility model, equivalents done on the basis of technique scheme or the alternative scope all falling into the utility model claim and protect.
Claims (6)
1. the telescopic of a splined surfaces injection moulding rete turns to lower drive shaft assembly, it is characterized in that, described driving-shaft assembly comprises lower cardan fork (1), universal joint cross-head (2), universal joint cross-head (8), apply mechanically joint yoke (3), joint yoke (7), upper cardan fork (9), described lower cardan fork (1) by universal joint cross-head (2) with apply mechanically joint yoke (3) and be connected, described joint yoke (7) is pitched (9) by universal joint cross-head (8) with upper cardan and is connected, described driving-shaft assembly also comprises telescopic driving device, described telescopic driving device is arranged on to be applied mechanically between joint yoke (3) and joint yoke (7).
2. the telescopic of splined surfaces injection moulding rete according to claim 1 turns to lower drive shaft assembly, it is characterized in that, described telescopic driving device comprises spline housing (4), castellated shaft (5), described joint yoke (3) and spline housing (4) weld together applied mechanically, castellated shaft (5) right-hand member milling ray flower key and joint yoke (7) female splines are bolted.
3. the telescopic of splined surfaces injection moulding rete according to claim 1 turns to lower drive shaft assembly, it is characterized in that, described telescopic driving device also comprises cover of dust, and described cover of dust (6) fixes on spline housing (4).
4. the telescopic of splined surfaces injection moulding rete according to claim 3 turns to lower drive shaft assembly, it is characterized in that, described castellated shaft (5) two ends adopt the invoice serration of different modulus, left end is telescopic end, spline tooth surface adopts nylon injection-molding rete (10), right-hand member is coupling end, and spline adopts a side milling limit (11).
5. the telescopic of splined surfaces injection moulding rete according to claim 4 turns to lower drive shaft assembly, it is characterized in that, described spline housing (4) female splines adopts seamless pipe precision to swage once-forming, and cylindrical right-hand member arranges Baltimore groove (12).
6. the telescopic of splined surfaces injection moulding rete according to claim 5 turns to lower drive shaft assembly, it is characterized in that, described cover of dust (6) adopts nylon injection-molding to be shaped, cover of dust left end endoporus and spline housing (4) cylindrical match, with spline housing (4) in hole, outer round recessed (12) correspondence position arranges the hypotenuse card muscle (13) of uniform arrangement everywhere, and cover of dust right-hand member endoporus and castellated shaft (5) polished rod cylindrical match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420737524.4U CN204279617U (en) | 2014-12-01 | 2014-12-01 | A kind of the telescopic of splined surfaces injection moulding rete turns to lower drive shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420737524.4U CN204279617U (en) | 2014-12-01 | 2014-12-01 | A kind of the telescopic of splined surfaces injection moulding rete turns to lower drive shaft assembly |
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| Publication Number | Publication Date |
|---|---|
| CN204279617U true CN204279617U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420737524.4U Expired - Fee Related CN204279617U (en) | 2014-12-01 | 2014-12-01 | A kind of the telescopic of splined surfaces injection moulding rete turns to lower drive shaft assembly |
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| CN (1) | CN204279617U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128923A (en) * | 2015-09-10 | 2015-12-09 | 江苏金也汽车配件有限公司 | Steel ball ball-type lower steering shaft assembly |
| CN106218706A (en) * | 2016-08-25 | 2016-12-14 | 江苏金也汽车配件有限公司 | A kind of motor turning lower drive shaft assembly of non-welding structure |
| CN109398476A (en) * | 2018-12-11 | 2019-03-01 | 天津科技大学 | A kind of control mechanism of AGV four-wheel independent steering in conjunction with differential |
| US10913482B2 (en) | 2019-01-14 | 2021-02-09 | Ford Global Technologies, Llc | Steering column assembly |
-
2014
- 2014-12-01 CN CN201420737524.4U patent/CN204279617U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128923A (en) * | 2015-09-10 | 2015-12-09 | 江苏金也汽车配件有限公司 | Steel ball ball-type lower steering shaft assembly |
| CN106218706A (en) * | 2016-08-25 | 2016-12-14 | 江苏金也汽车配件有限公司 | A kind of motor turning lower drive shaft assembly of non-welding structure |
| CN109398476A (en) * | 2018-12-11 | 2019-03-01 | 天津科技大学 | A kind of control mechanism of AGV four-wheel independent steering in conjunction with differential |
| CN109398476B (en) * | 2018-12-11 | 2024-01-19 | 天津科技大学 | Control mechanism combining four-wheel independent steering and differential speed of AGV |
| US10913482B2 (en) | 2019-01-14 | 2021-02-09 | Ford Global Technologies, Llc | Steering column assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20150422 Termination date: 20191201 |