CN204077776U - The telescopic lower drive shaft that turns to that a kind of free-sliding spline wearing clearance is adjustable combines - Google Patents
The telescopic lower drive shaft that turns to that a kind of free-sliding spline wearing clearance is adjustable combines Download PDFInfo
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- CN204077776U CN204077776U CN201420431790.4U CN201420431790U CN204077776U CN 204077776 U CN204077776 U CN 204077776U CN 201420431790 U CN201420431790 U CN 201420431790U CN 204077776 U CN204077776 U CN 204077776U
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- joint yoke
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Abstract
The telescopic lower drive shaft that turns to that the utility model relates to a kind of free-sliding spline wearing clearance adjustable combines, it is characterized in that, described transmission shaft combination comprises lower cardan fork (1), universal joint cross-head (2), universal joint cross-head (11), apply mechanically joint yoke (3), axle is with joint yoke (10), upper cardan fork (12), described lower cardan fork (1) by universal joint cross-head (2) with apply mechanically joint yoke (3) and be connected, described axle is pitched (12) by universal joint cross-head (11) with upper cardan with joint yoke (10) and is connected, described transmission shaft combination also comprises slack adjuster members, described slack adjuster members is arranged on to be applied mechanically between joint yoke (3) and axle joint yoke (10).
Description
Technical field
The utility model relates to a kind of driving device, and the telescopic lower drive shaft that turns to that specifically a kind of free-sliding spline wearing clearance is adjustable combines, and belongs to automobile steering transmission device technical field.
Background technology
Current automobile steering transmission device combines primarily of bearing circle, steering shaft combination, steering column, turns to the compositions such as lower drive shaft combination, steering wheel.Turning to lower drive shaft to combine is the important component part of automobile steering transmission device, and it connects steering shaft, connects steering wheel down, and its function is mainly transmitted and turned to alternate torque.The telescopic joint yoke turning to lower drive shaft to combine two ends employing 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 in the process of moving, frequent needs adjustment and change 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.
Existingly telescopicly turn to lower drive shaft to combine to mainly contain three kinds of versions, to be that spline housing end is uniform arrange four open slots to one, adopts steel band clip to be held tightly, and castellated shaft can free-extension in spline housing; Another kind applies one deck nylon layer at castellated shaft outside face or at spline housing inside face, ensures that free-sliding spline has rational tolerance clearance; Also have one to be adopt steel bobbin type structure, by adjustment steel ball size during assembling, reach the object meeting spline fitted gap.Above-mentioned three kinds of structures are in initial stage of dispatching from the factory, and castellated shaft is capable of expansion and contraction in spline housing, and have certain sliding resistance, performance safety is reliable.But, when running car exceedes certain mileage, especially when jolting road traveling, easily cause violent vibrations, under the effect of reverse load, accelerate the wearing and tearing of related components, the especially wearing and tearing of free-sliding spline, problem is: existing structure all cannot make up the tolerance clearance that the free-sliding spline that causes because wearing and tearing increases gradually, thus cause producing abnormal sound, pass in operator's compartment, directly affect driving performance, bring great accident potential to ride safety of automobile.Therefore, a kind of new technical scheme of exigence solves the problems of the technologies described above.
Summary of the invention
The utility model is just for the technical matters existed in prior art, the telescopic lower drive shaft that turns to providing a kind of free-sliding spline wearing clearance adjustable combines, this device integral structure relates to ingenious, easy to operate, when chaufeur finds to turn to lower drive shaft to produce abnormal sound because of free-sliding spline wearing and tearing in the process of moving, free-sliding spline clearance adjustment mechanism can be passed through, compensate the tolerance clearance of experience wear, free-sliding spline is coordinated and is in a kind of normal engagement always, prevent abnormal sound, add the safety performance of running car.
To achieve these goals, the technical solution adopted in the utility model is, the telescopic lower drive shaft that turns to that a kind of free-sliding spline wearing clearance is adjustable combines, it is characterized in that, described transmission shaft combination comprises lower cardan fork, universal joint cross-head, universal joint cross-head, apply mechanically joint yoke, axle joint yoke, upper cardan is pitched, described lower cardan fork by universal joint cross-head with apply mechanically joint yoke and be connected, described axle to be pitched with upper cardan by universal joint cross-head with joint yoke and is connected, described transmission shaft combination also comprises slack adjuster members, described slack adjuster members is arranged on to be applied mechanically between joint yoke and axle joint yoke.
Improve as one of the present utility model, described slack adjuster members comprises spline housing, adjustment block, lock screw, adjusting pad, Ka Gai, castellated shaft, castellated shaft and axle joint yoke are by being welded to connect, described joint yoke and the spline housing applied mechanically is by being welded to connect, the end of described castellated shaft arranges a deep hole, in order to installation adjusting device, castellated shaft along the circumferential direction arranges the open slot of four uniform symmetries, make castellated shaft end have bullet to rise function, in the middle of the open slot of castellated shaft end two, an auxiliary hole is being set, as the use of interior hexagonal lock screw operation; Arranging an auxiliary hole in the middle of the open slot of castellated shaft end two, described adjustment block is provided with screw, the screwhole position of adjustment block aims at the auxiliary hole of castellated shaft, and interior hexagonal lock screw enters the screw of adjustment block by the auxiliary hole of castellated shaft.
Improve as one of the present utility model, described transmission shaft combination also comprises Ka Gai, and described card covers tightly and is stuck on spline housing, and castellated shaft can free-extension in spline housing.
Improve as one of the present utility model, described adjustment block is the long cube of one side in arc-shaped, and narrow body both sides arrange four symmetrical Baltimore grooves, in order to mounting and adjusting pad four convex tendons, adjustment block center arranges a tapped bore, as the use of interior hexagonal lock screw operation.
Improve as one of the present utility model, the spike of described adjusting pad to be two ends be circular arc, middle part oppositely and the Baltimore groove symmetric position of adjustment block four convex tendons are set, four convex tendons are just in time placed in four grooves of adjustment block.
Improve as one of the present utility model, interior hexagonal lock screw one end is interior hexagon, and in order to the use of inner-hexagon spanner operation, the other end is cylinder, cylinder planar end surface and adjusting pad plane contact, increases coupling mechanism force.
Improve as one of the present utility model, upward, grooves on two sides inserts adjusting pad both sides boss to adjustment block arc surface, is arranged in the deep hole of castellated shaft by the setting device assembled.
Relative to prior art, advantage of the present utility model is as follows, 1) unit design is ingenious, novel, reliable, practical, and disassembly and assembly convenient maintenance and replacement, cost are lower; 2) in this technical scheme because free-sliding spline wearing clearance is adjustable, make automobile free-sliding spline be flexible in the process of moving can be in normal engagement always, overcoming prior art free-sliding spline cannot the defect in compensate for wear gap, eliminate the abnormal sound that free-sliding spline wearing clearance produces, effectively increase 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 A-A cross section view of Fig. 1;
Fig. 3 is adjustment block structural representation;
Fig. 4 is adjusting pad structural representation;
Fig. 5 is interior hexagonal lock screw structural representation;
Fig. 6 is castellated shaft schematic diagram;
Wherein, 1, lower cardan fork, 2, universal joint cross-head, 3, joint yoke is applied mechanically, 4, spline housing, 5, adjustment block, 6, lock screw, 7, adjusting pad, 8, Ka Gai, 9, castellated shaft, 10, axle joint yoke, 11, universal joint cross-head, 12, upper cardan fork, 13, open slot, 14, auxiliary hole, 15, screw, 16, Baltimore groove, 17, convex tendon.
Detailed description of the invention
In order to deepen understanding and cognition of the present utility model, below in conjunction with accompanying drawing the utility model be further described and introduce.
embodiment 1:as Fig. 1, the telescopic lower drive shaft that turns to that a kind of free-sliding spline wearing clearance is adjustable combines, described transmission shaft combination comprises lower cardan fork 1, universal joint cross-head 2, universal joint cross-head 11, apply mechanically joint yoke 3, axle joint yoke 10, upper cardan fork 12, described lower cardan fork 1 by universal joint cross-head 2 with apply mechanically joint yoke 3 and be connected, described axle is pitched 12 by universal joint cross-head 11 with upper cardan with joint yoke 10 and is connected, described transmission shaft combination also comprises telescopic driving device, described telescopic driving device is arranged on to be applied mechanically between joint yoke 3 and axle joint yoke 10.Because free-sliding spline wearing clearance is adjustable in this technical scheme, make automobile free-sliding spline be flexible in the process of moving can be in normal engagement always, overcoming prior art free-sliding spline cannot the defect in compensate for wear gap, eliminate the abnormal sound that free-sliding spline wearing clearance produces, effectively increase the safety performance of running car, extend the service life of running car.
embodiment 2:as Fig. 1, improve as one of the present utility model, described slack adjuster members comprises spline housing 4, adjustment block 5, lock screw 6, adjusting pad 7, card lid 8, castellated shaft 9, castellated shaft 9 and axle joint yoke 10 are by being welded to connect, describedly apply mechanically joint yoke 3 with spline housing 4 by being welded to connect, the end of described castellated shaft 9 arranges a deep hole, in order to installation adjusting device, castellated shaft 9 along the circumferential direction arranges the open slot 13 of four uniform symmetries, make castellated shaft 9 end have bullet to rise function, in the middle of the open slot of castellated shaft 9 end two, an auxiliary hole is being set, as the use of interior hexagonal lock screw operation.All the other structures are identical with embodiment 1 with advantage.
embodiment 3:as Fig. 1
,improve as one of the present utility model, the described telescopic lower drive shaft that turns to combines, and card lid 8 is tightly stuck on spline housing 4, and castellated shaft 9 can free-extension in spline housing 4.All the other structures are identical with embodiment 1 with advantage.
embodiment 4:as Fig. 3, improve as one of the present utility model, described adjustment block 5 is the long cube of one side in arc-shaped, narrow body both sides arrange four symmetrical Baltimore grooves, in order to mounting and adjusting pad four convex tendons 17, adjustment block 5 center arranges a tapped bore, as the use of interior hexagonal lock screw 6 operation.All the other structures are identical with embodiment 1 with advantage.
embodiment 5:as Fig. 3, Fig. 4, improve as one of the present utility model, described adjusting pad 7 for two ends be the spike of arc-shaped, middle part oppositely and Baltimore groove 16 symmetric position of adjustment block 5 to arrange in four grooves that four convex tendons, 17, four convex tendons 17 are just in time placed in adjustment block 5 16.
embodiment 6:as Fig. 5, improve as one of the present utility model, described interior hexagonal lock screw 6 one end is interior hexagon, and in order to the use of inner-hexagon spanner operation, the other end is cylinder, cylinder planar end surface and adjusting pad 7 plane contact, increases coupling mechanism force.All the other structures are identical with embodiment 1 with advantage.
embodiment 7:as Fig. 2, Fig. 4, Fig. 6, improve as one of the present utility model, upward, grooves on two sides inserts adjusting pad 7 both sides convex tendon 17 to adjustment block 5 arc surface, is arranged on by the setting device assembled in the deep hole of castellated shaft 9.All the other structures are identical with embodiment 1 with advantage.
At least one in technical characteristic described in embodiment 2,3,4,5,6,7 and embodiment 1 can also be combined to form new embodiment 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 (7)
1. the telescopic lower drive shaft that turns to that a free-sliding spline wearing clearance is adjustable combines, it is characterized in that, described transmission shaft combination comprises lower cardan fork (1), universal joint cross-head (2), universal joint cross-head (11), apply mechanically joint yoke (3), axle is with joint yoke (10), upper cardan fork (12), described lower cardan fork (1) by universal joint cross-head (2) with apply mechanically joint yoke (3) and be connected, described axle is pitched (12) by universal joint cross-head (11) with upper cardan with joint yoke (10) and is connected, described transmission shaft combination also comprises slack adjuster members, described slack adjuster members is arranged on to be applied mechanically between joint yoke (3) and axle joint yoke (10).
2. the telescopic lower drive shaft that turns to that free-sliding spline wearing clearance as claimed in claim 1 is adjustable combines, it is characterized in that, described slack adjuster members comprises spline housing (4), adjustment block (5), lock screw (6), adjusting pad (7), Ka Gai (8), castellated shaft (9), castellated shaft (9) and axle joint yoke (10) are by being welded to connect, described joint yoke (3) and the spline housing (4) applied mechanically is by being welded to connect, the end of described castellated shaft (9) arranges a deep hole, castellated shaft (9) along the circumferential direction arranges the open slot (13) of four uniform symmetries, in the middle of the open slot of castellated shaft (9) end two, an auxiliary hole (14) is being set, described adjustment block (5) is provided with screw (15), the auxiliary hole (14) of screw (15) the position alignment castellated shaft (9) of adjustment block (5), interior hexagonal lock screw (6) enters the screw (15) of adjustment block 5 by the auxiliary hole (14) of castellated shaft (9).
3. the telescopic lower drive shaft that turns to that free-sliding spline wearing clearance as claimed in claim 2 is adjustable combines, it is characterized in that, described transmission shaft combination also comprises Ka Gai (8), and described Ka Gai (8) is tightly stuck on spline housing (4), and castellated shaft (9) is free-extension in spline housing (4).
4. the telescopic lower drive shaft that turns to that free-sliding spline wearing clearance as claimed in claim 3 is adjustable combines, it is characterized in that, described adjustment block (5) is the long cube of one side in arc-shaped, narrow body both sides arrange four symmetrical Baltimore grooves (16), and adjustment block (5) center arranges a screw (15).
5. the telescopic lower drive shaft that turns to that free-sliding spline wearing clearance as claimed in claim 4 is adjustable combines, it is characterized in that, described adjusting pad (7) for two ends be the spike of circular arc, middle part oppositely and Baltimore groove (16) symmetric position of adjustment block (5) four convex tendons (17) are set.
6. the telescopic lower drive shaft that turns to that the free-sliding spline wearing clearance as described in Claims 2 or 3 or 4 or 5 or 6 is adjustable combines, and it is characterized in that, interior hexagonal lock screw (6) one end is interior hexagon, and the other end is cylinder.
7. the telescopic lower drive shaft that turns to that free-sliding spline wearing clearance as claimed in claim 6 is adjustable combines, and it is characterized in that,
Upward, grooves on two sides inserts adjusting pad 7 both sides boss to adjustment block 5 arc surface, is arranged on by the setting device assembled in the deep hole of castellated shaft (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420431790.4U CN204077776U (en) | 2014-08-01 | 2014-08-01 | The telescopic lower drive shaft that turns to that a kind of free-sliding spline wearing clearance is adjustable combines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420431790.4U CN204077776U (en) | 2014-08-01 | 2014-08-01 | The telescopic lower drive shaft that turns to that a kind of free-sliding spline wearing clearance is adjustable combines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204077776U true CN204077776U (en) | 2015-01-07 |
Family
ID=52170519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420431790.4U Expired - Fee Related CN204077776U (en) | 2014-08-01 | 2014-08-01 | The telescopic lower drive shaft that turns to that a kind of free-sliding spline wearing clearance is adjustable combines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204077776U (en) |
Cited By (2)
| 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 |
| CN107420447A (en) * | 2017-08-29 | 2017-12-01 | 南京市溧水中山铸造有限公司 | A kind of power transmission shaft casting |
-
2014
- 2014-08-01 CN CN201420431790.4U patent/CN204077776U/en not_active Expired - Fee Related
Cited By (2)
| 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 |
| CN107420447A (en) * | 2017-08-29 | 2017-12-01 | 南京市溧水中山铸造有限公司 | A kind of power transmission shaft casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150107 Termination date: 20190801 |