CN107444471B - Steering drive axle connection structure - Google Patents
Steering drive axle connection structure Download PDFInfo
- Publication number
- CN107444471B CN107444471B CN201710644578.4A CN201710644578A CN107444471B CN 107444471 B CN107444471 B CN 107444471B CN 201710644578 A CN201710644578 A CN 201710644578A CN 107444471 B CN107444471 B CN 107444471B
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- CN
- China
- Prior art keywords
- buffer stopper
- buffer part
- strip groove
- spherical
- swivel nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/20—Connecting steering column to steering gear
Abstract
The invention discloses a kind of steering drive axle connection structure, including upper transmission shaft and lower drive shaft, the bottom end of upper transmission shaft is equipped with connecting sleeve, and connecting sleeve is externally provided with screw thread, along the bottom end inner wall of connecting sleeve it is axial be equipped with multiple spherical grooves；The top exterior walls axial direction of lower drive shaft is equipped with multiple strip grooves；It further include upper buffer stopper, lower buffer stopper and swivel nut；Lower buffer stopper includes that the annular solid being fixed in swivel nut and radial convex are set to the intracorporal lower buffer part of annular, lower buffer part protrude into strip groove bottom and with strip groove inner face sphere-contact；The side of upper buffer stopper is installed on the top of strip groove, and the other side is backwards to the extension of strip groove side and the upper buffer part with spherical groove sphere-contact；Swivel nut is threadedly coupled with upper buffer stopper and upper buffer stopper and lower buffer stopper is pressed between the bottom surface of swivel nut and the top surface of spherical groove.The upper buffer stopper and lower buffer stopper being set between upper transmission shaft and lower drive shaft in this programme can reliably transmit steering torque.
Description
Technical field
The present invention relates to the connection area of steering drive axle more particularly to a kind of steering drive axle connection structures.
Background technique
Steering shaft is the driving member for connecting steering wheel and diverter, is the important component in automobile steering system.Turn
To shaft design, it on the one hand must assure that it can reliably transmit torque；On the other hand, due in vehicle traveling process by each
Axial vibration, twisting vibration and noise can occur for the influence of kind active force, steering shaft, especially travel and turning going ahead
Vibration is more strong when starting to movement, when it is transferred to steering wheel, will affect the operating comfort of driver.
Currently, structure is complicated for automobile steering drive shaft flexible connection, higher cost, light passenger train's product in order to control cost,
Steering system is to be connected together steering wheel with diverter by axis and universal joint, acts on the steering force of driver
Onto diverter, steering operation is realized, upper and lower two transmission shafts of steering drive axle are using rigid connection.
This steering system for being connected together steering wheel with diverter by axis and universal joint, due to steering drive axle
Using rigid connection, the vibration and distortion that vehicle travel process generates are transmitted in steering system, make steering shaft that axis occur
It is transferred directly to steering wheel to vibration and twisting vibration, will affect the operating comfort of driver.
Summary of the invention
The present invention is rigidly connected to solve existing two transmission shafts use, since steering drive axle is using rigidity
Connection, the vibration and distortion that vehicle travel process generates are transmitted in steering system, keep the twisting vibration of steering shaft direct
The problem of being transferred to steering wheel, will affect the operating comfort of driver.
The present invention provides a kind of steering drive axle connection structure to achieve the goals above, upper including what is be connected with steering wheel
The bottom end of transmission shaft and the lower drive shaft being connected with diverter, the upper transmission shaft is equipped with connecting sleeve, the connecting sleeve
Outer wall is equipped with screw thread, along the bottom end inner wall of the connecting sleeve it is axial be equipped with multiple spherical grooves；The top of the lower drive shaft
Portion's outer wall axial direction is equipped with multiple strip grooves, and the strip groove inner face is spherical surface；It further include upper buffer stopper, lower buffer stopper
And swivel nut；The lower buffer stopper include be fixed on the annular solid in the swivel nut and radial convex be set to the annular it is intracorporal under
Buffer part, the lower buffer part protrude into strip groove bottom and with the strip groove inner face sphere-contact；The upper buffering
The side of block is installed on the top of the strip groove, the other side be extend backwards to the strip groove side and with the spherical surface
The upper buffer part of groove sphere-contact；The swivel nut is threadedly coupled with the upper buffer stopper and by the upper buffer stopper and lower buffering
Block is pressed between the bottom surface of swivel nut and the top surface of spherical groove.
Preferably, the lower buffer part is axial set on the intracorporal cylindrical body of annular, and the cylindrical body is by elastic material
Material is made.
Preferably, the upper buffer part is elastic rubber column, the elastic rubber column side opposite with the cylindrical body
It abuts each other, the elastic rubber column and the cylindrical body other side are bonded with the side inner end of the strip groove respectively.
Preferably, steel ball is additionally provided between the upper buffer part and the lower buffer part；The upper buffer part and described
The opposite side of lower buffer part is respectively provided with spherical groove, and the steel ball rotational installation is in two spherical grooves, the steel ball court
Side and the strip groove sphere-contact to the strip groove.
Preferably, the diameter of the steel ball is less than the diameter of the strip groove, the steel ball and the strip groove
There is the gap for lower drive shaft rotation between two sides.
Preferably, cutting forms a limit round table axially inwards on the inside of the bottom end of the connecting sleeve, and the spherical surface is recessed
The bottom opening of slot is located in the round table surface of the limit round table；The lower buffer part is towards the side outer end of the upper buffer part
With the round table surface against.
Preferably, the bottom end of the swivel nut has inside horizontal-extending compression platform, and the compression platform action is in institute
State the bottom face of lower buffer stopper.
Effect of the invention is that: upper buffer stopper and the lower buffering being set in this programme between upper transmission shaft and lower drive shaft
Block can either reliably transmit steering torque, while can also eliminate due to the shadow in vehicle traveling process by motive power
It rings, structure is simple, and manufacturing cost is lower.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only one recorded in the present invention
A little embodiments are also possible to obtain other drawings based on these drawings for those of ordinary skill in the art.
Fig. 1 is the main view that transmission shaft connecting structure is turned in the embodiment of the present invention.
Fig. 2 is the face the A-A cross-sectional view of Fig. 1.
Fig. 3 is the face the B-B cross-sectional view of Fig. 1.
Fig. 4 is the face the C-C cross-sectional view of Fig. 1.
Fig. 5 is the structural schematic diagram of lower drive shaft.
Fig. 6 is the structural schematic diagram of upper transmission shaft.
Fig. 7 is the explosive view of upper buffer stopper and lower buffer stopper coupling part.
In the present embodiment figure: 1- lower drive shaft, 11- groove upper surface, 12- strip groove, 13- groove lower end surface, under 2-
Buffer stopper, buffer part under 21-, 3- swivel nut, 4- steel ball, the upper buffer stopper of 5-, the upper buffer part of 51-, the upper transmission shaft of 6-, 61- limit circle
Platform, 62- screw thread, 63- spherical groove, 64- round table surface, the top surface 65-.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, below in conjunction with attached drawing to this hair
It is bright to be further detailed.
Referring to shown in Fig. 1 to Fig. 7, for a kind of steering drive axle connection structure provided in an embodiment of the present invention, this programme is adopted
Upper and lower transmission shaft is connected together with a flexible linking device and forms light passenger train's steering drive axle flexible connecting structure.Its
In, lower drive shaft 1 is connected on diverter by universal joint, and upper transmission shaft 6 is connected on steering wheel by universal joint.
Wherein, which is by the upper buffer stopper 5 and lower buffer stopper between lower drive shaft 1 and upper transmission shaft 6
2 compositions carry out buffering axially or radially to two transmission shafts by two buffer stoppers.
Specifically, it is equipped with connecting sleeve in the bottom end of upper transmission shaft 6, the outer wall of connecting sleeve is equipped with screw thread 62, along connection
The bottom end inner wall axial direction of casing is equipped with multiple spherical grooves 63, flexibility of the spherical groove 63 as upper transmission shaft and upper buffer stopper
Coupling part buffers upper transmission shaft 6.
Referring to figure 1 and figure 5, what the top exterior walls of lower drive shaft 1 were axial is equipped with multiple strip grooves 12, strip groove
12 inner faces are spherical surface, strip groove 12 as lower drive shaft 1 and lower buffer stopper 2 flexible connection to lower drive shaft 1 into
Row buffering.
Wherein, lower buffer stopper 2 includes that the annular solid being fixed in swivel nut and radial convex are set to the intracorporal lower buffer part of annular
21, lower buffer part 21 protrude into 12 bottom of strip groove and with the 12 inner face sphere-contact of strip groove, lower buffer stopper 2 be one
Overall structure is not easy to deviate groove so that each lower buffer part 21 has globality, also acts as the work of the limit to upper buffer part
With.
In conjunction with shown in Fig. 2 to Fig. 4, the side of upper buffer stopper 5 is installed on the top of strip groove 12, and the other side is backwards to described
12 side of strip groove extends and the upper buffer part 51 with spherical groove sphere-contact.That is, upper and lower buffer part is pacified jointly
In strip groove, and it is respectively acting on upper and lower transmission shaft.
When relative rotation is occurred by radial force between two transmission shafts, since spherical surface acts on, between two transmission shafts
It can be acted on by upper buffer part 51, lower buffer part 21 and corresponding spherical surface, carry out minor rotation.After radial force is removed, lead to
The reaction for crossing spherical forces upper and lower buffer part return.
When installation, swivel nut 3 is threadedly coupled with upper buffer stopper 5 and upper buffer part 51 and lower buffer part 21 is pressed on swivel nut 3
Bottom surface and spherical groove top surface 65 between, can compress platform by being arranged in the bottom end of swivel nut 3 and realize, wherein compress flat
Platform acts on the bottom face of lower buffer part, so that the top surface of upper and lower buffer part and spherical groove be made to compress.
In the present solution, cylindrical body is by elasticity as shown in figure 3, lower buffer part 21 is axial set on annular intracorporal cylindrical body
Material is made, and cylindrical body and 12 inner surface sphere-contact of strip groove, elastic material itself have elasticity, can be to two transmission shafts
Carry out axial buffer.Further, as shown in fig. 7, elastic rubber column made of elastic material can also be used in upper buffer part 51,
In, the elastic rubber column side opposite with cylindrical body abuts each other, other side is bonded with the side inner end of strip groove respectively,
It is bonded respectively with groove upper surface 11 and groove lower end surface 13 in this programme.It is, two buffer parts are all made of elastic material system
At to carry out axial buffer.Meanwhile column construction itself has biggish acting surface, so that sphere-contact area is bigger, rotation
And return is more stable.
In a preferred embodiment, in conjunction with shown in Fig. 1 and Fig. 7, in order to ensure upper buffer part and lower buffer part can separate
Effect, is additionally provided with steel ball 4 between upper buffer part 51 and lower buffer part 21；Upper buffer part 51 and the opposite side of lower buffer part 21
It is respectively provided with spherical groove, the rotational installation of steel ball 4 is in two spherical grooves, side and strip groove of the steel ball 4 towards strip groove 12
12 sphere-contacts, upper buffering and lower buffering realize flexible connection by 4 mode of steel ball, in addition, steel ball 4 itself is in this buffer structure
In also function to rotation adjustment effect, when two transmission shafts relatively rotate, steel ball 4 can be rotated in strip groove 12.
In order to ensure it can be carried out yaw motion in strip groove 12, in the present solution, the diameter design of steel ball 4 is less than strip groove
12 diameter has the gap rotated for lower drive shaft 1, to ensure upper transmission shaft between steel ball 4 and the two sides of strip groove 12
Can be carried out rotation between lower drive shaft, can circumferentially rotate certain angle e to the left and right, thus realize lower drive shaft 1 with
Flexible connection between upper transmission shaft 6.
The vibration and distortion that vehicle travel process generates are transmitted in lower drive shaft, when axial vibration occurs for lower drive shaft 1
When, lower buffer part 21 and upper buffer part 51 will be driven along axis by the groove upper surface 11 of lower drive shaft 1 and groove lower end surface 13
To flexible deformation occurs, axial vibration is eliminated.When slight twisting vibration occurs for lower drive shaft 1, generate upper and lower buffer part
Circumferential torsion, eliminates twisting vibration, and the steel ball 4 in semicircle groove 63 due to being embedded in upper transmission shaft 1 can be relative to underdrive
Axis 1 makees axial up and down and left and right circumferential direction small distance e combination movement, relatively rotates lower drive shaft 1 and upper transmission shaft 6, keeps away
Exempt from the steering wheel that twisting vibration is transmitted to and upper transmission shaft 1 connects.
When needing to turn to, driver turn steering wheel, transmission shaft rotation in drive, upper transmission shaft drives lower buffer part 21
With 51 torsional deflection of upper buffer part of 3 elastic rubber columns composition, upper transmission shaft 6 and lower drive shaft 1 are relatively rotated, and make to be embedded in
Steel ball 4 in the spherical groove 63 of upper transmission shaft 6 and the circumferential gap e in the strip groove 12 of lower drive shaft 1 disappear, steel ball 4
It can not move radially, upper transmission shaft 6 and lower drive shaft 1 are connected in rotation direction by steel ball 4, under upper transmission shaft 6 drives
Transmission shaft 1 rotates, and the steering moment that driver turn steering wheel generates reliably is passed to diverter, realizes steering operation.
As steering wheel Hui Zhenghou, under the effect of upper and lower buffer part elasticity of torsion power, be embedded in steel ball in transmission shaft spherical groove with
The circumferential gap e of the strip groove of lower drive shaft 1 restores, and the flexible connection can either reliably transmit steering torque in this way,
It can also eliminate due to being influenced in vehicle traveling process by motive power simultaneously, the generated axial vibration in steering shaft
Dynamic, twisting vibration and noise.Since structure is simple, manufacturing cost is lower, compact-sized, and occupied space is smaller, can expire well
The shock attenuation needs of the steer drive of the products such as sufficient light passenger train improve the operating comfort of product.
In addition, cutting forms a limit round table 61, spherical groove 63 axially inwards on the inside of the bottom end of the connecting sleeve
Bottom opening be located in the round table surface 64 of the limit round table 61；The lower buffer part is towards outside the side of the upper buffer part
End with the round table surface against, with realize the limit of lower buffer part top outer is fixed.
In conclusion this programme can either reliably transmit steering torque, while can also eliminate since garage crosses
It is influenced in journey by motive power, generated axial vibration, twisting vibration and noise in steering shaft.Structure is simple, system
Make that cost is relatively low, compact-sized, occupied space is smaller, and light passenger train's product can be solved with lower cost will turn by axis and universal joint
The steering system connected together to disk with diverter, due to the vibration and torsion generated using rigid connection, vehicle travel process
Song is transmitted in steering system, is made steering shaft that axial vibration and twisting vibration occur, is directly delivered to asking on steering wheel
Topic.It reduces and vibrates and drive indoor noise on steering wheel, be well positioned to meet subtracting for the steer drive of the products such as light passenger train
Shake, noise reduction demand, improve the operating comfort of product.
It is above that certain exemplary embodiments of the invention are only described by way of explanation, undoubtedly, for ability
The those of ordinary skill in domain without departing from the spirit and scope of the present invention can be with a variety of different modes to institute
The embodiment of description is modified.Therefore, above-mentioned attached drawing and description are regarded as illustrative in nature, and should not be construed as to the present invention
The limitation of claims.
Claims (7)
1. a kind of steering drive axle connection structure, including the upper transmission shaft being connected with steering wheel and the underdrive being connected with diverter
Axis, which is characterized in that the bottom end of the upper transmission shaft is equipped with connecting sleeve, and the outer wall of the connecting sleeve is equipped with screw thread, along institute
That states the bottom end inner wall axial direction of connecting sleeve is equipped with multiple spherical grooves；Being equipped with for the top exterior walls axial direction of the lower drive shaft is more
A strip groove, the strip groove inner face are spherical surface；
It further include upper buffer stopper, lower buffer stopper and swivel nut；The lower buffer stopper includes the annular solid being fixed in the swivel nut
It is set to the intracorporal lower buffer part of the annular with radial convex, the lower buffer part protrudes into strip groove bottom and recessed with the bar shaped
Slot inner face sphere-contact；The side of the upper buffer stopper is installed on the top of the strip groove, and the other side is backwards to described
Strip groove side extends and the upper buffer part with the spherical groove sphere-contact；
The swivel nut is threadedly coupled with the upper buffer stopper and the upper buffer stopper and lower buffer stopper is pressed on to the bottom surface of swivel nut
Between the top surface of spherical groove.
2. steering drive axle connection structure as described in claim 1, which is characterized in that the lower buffer part is set to institute to be axial
The intracorporal cylindrical body of annular is stated, the cylindrical body is made of elastic material.
3. steering drive axle connection structure as claimed in claim 2, which is characterized in that the upper buffer part is elastic rubber
Column, the elastic rubber column side opposite with the cylindrical body abut each other that the elastic rubber column and the cylindrical body are another
Side is bonded with the side inner end of the strip groove respectively.
4. steering drive axle connection structure as described in claim 1, which is characterized in that in the upper buffer part and described lower slow
It rushes and is additionally provided with steel ball between portion；The upper buffer part and the opposite side of the lower buffer part are respectively provided with spherical groove, the steel
Ball is rotatablely installed in two spherical grooves, and the side of the steel ball towards the strip groove connects with the strip groove spherical surface
Touching.
5. steering drive axle connection structure as claimed in claim 4, which is characterized in that the diameter of the steel ball is less than the item
The diameter of connected in star has the gap for lower drive shaft rotation between the steel ball and the two sides of the strip groove.
6. steering drive axle connection structure as described in claim 1, which is characterized in that on the inside of the bottom end of the connecting sleeve
Cutting forms a limit round table axially inwards, and the bottom opening of the spherical groove is located in the round table surface of the limit round table；
The lower buffer part towards the upper buffer part side outer end and the round table surface against.
7. steering drive axle connection structure as claimed in claim 6, which is characterized in that the bottom end of the swivel nut has inside water
The flat compression platform extended, the compression platform action is in the bottom face of the lower buffer stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710644578.4A CN107444471B (en) | 2017-07-31 | 2017-07-31 | Steering drive axle connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710644578.4A CN107444471B (en) | 2017-07-31 | 2017-07-31 | Steering drive axle connection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107444471A CN107444471A (en) | 2017-12-08 |
| CN107444471B true CN107444471B (en) | 2019-05-07 |
Family
ID=60490133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710644578.4A Active CN107444471B (en) | 2017-07-31 | 2017-07-31 | Steering drive axle connection structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN107444471B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108327777B (en) * | 2018-02-12 | 2020-01-14 | 安徽江淮汽车集团股份有限公司 | Length-adjustable steering transmission shaft assembly |
| CN108357557B (en) * | 2018-02-12 | 2019-10-25 | 安徽江淮汽车集团股份有限公司 | Length-adjustable steering drive axle component |
| CN108327779B (en) * | 2018-02-12 | 2019-10-25 | 安徽江淮汽车集团股份有限公司 | Length-adjustable steering drive axle component |
| CN108357561B (en) * | 2018-02-12 | 2020-01-14 | 安徽江淮汽车集团股份有限公司 | Length-adjustable steering transmission shaft assembly |
| CN108340963B (en) * | 2018-02-12 | 2020-01-14 | 安徽江淮汽车集团股份有限公司 | Length-adjustable steering transmission shaft assembly |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3411343A1 (en) * | 1984-03-28 | 1985-10-03 | Phoenix Ag, 2100 Hamburg | Elastic rotating bearing |
| JP2004196261A (en) * | 2002-12-20 | 2004-07-15 | Nsk Ltd | Extendable shaft for vehicle steering |
| EP1588921A4 (en) * | 2003-01-10 | 2006-11-29 | Nsk Ltd | Telescopic shaft for motor vehicle steering |
| EP2274526B1 (en) * | 2008-04-30 | 2019-01-23 | Dreco Energy Services Ltd. | Drive shaft assembly for a downhole motor |
| JP5915355B2 (en) * | 2012-04-23 | 2016-05-11 | オイレス工業株式会社 | Shaft coupling mechanism |
| JP6618810B2 (en) * | 2016-01-13 | 2019-12-11 | Ntn株式会社 | Constant velocity universal joint |
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2017
- 2017-07-31 CN CN201710644578.4A patent/CN107444471B/en active Active
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| Publication number | Publication date |
|---|---|
| CN107444471A (en) | 2017-12-08 |
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