CN107061525A - A kind of helical spline attachment structure - Google Patents
A kind of helical spline attachment structure Download PDFInfo
- Publication number
- CN107061525A CN107061525A CN201710122245.5A CN201710122245A CN107061525A CN 107061525 A CN107061525 A CN 107061525A CN 201710122245 A CN201710122245 A CN 201710122245A CN 107061525 A CN107061525 A CN 107061525A
- Authority
- CN
- China
- Prior art keywords
- spline
- splined shaft
- helical
- external splines
- rotatable parts
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/06—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/10—Constructively simple tooth shapes, e.g. shaped as pins, as balls
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses a kind of helical spline attachment structure, it is therefore intended that so that two parts of connection can be achieved with axial relative motion without other executing agencies, simple in construction, and reliability is high, the technical scheme used for：Including the external splines being arranged on splined shaft and the internal spline being arranged on rotatable parts, the splined shaft is used to drive rotatable parts to rotate, rotatable parts are set on splined shaft, and the internal spline of rotatable parts and the external splines of splined shaft match, the external splines and internal spline use helical spline, the root circle of the internal spline and the outside circle of external splines coordinate for gap, and the splined shaft drives rotatable parts to rotate the relative motion for realizing axial direction.
Description
Technical field
The present invention relates to spline connection, and in particular to a kind of helical spline attachment structure.
Background technology
Spline connects the connection for being widely used in part and axle, and spline connection connects by the key teeth being equally spaced on axle and hub
Touch mutually pressure to move and torque to transmit, traditional spline form is straight-tooth spline, most common tooth form is rectangular spline and gradually opened
Line spline, the helical angle of spline is 0 °.Parts on shaft can together be rotated with axle after being connected by spline, if spline transmits moment of torsion
While, in addition it is also necessary to part do it is moving axially relative if also need to increase set of execution mechanism, by it is pneumatic, surge or artificially
The mode of applying power promotes part to be axially moved on spline, complicated with upper type, and this undoubtedly adds equipment cost.
The content of the invention
In order to solve the problems of the prior art, the present invention proposes a kind of helical spline attachment structure so that the two of connection
Part can be achieved with axial relative motion without other executing agencies, simple in construction, and reliability is high.
In order to realize the above object the technical solution adopted in the present invention is：Including the external splines being arranged on splined shaft
With the internal spline being arranged on rotatable parts, the splined shaft is used to drive rotatable parts to rotate, and rotatable parts are set in spline
On axle, and the internal spline of rotatable parts and the external splines of splined shaft match, and the external splines and internal spline are spent using helical teeth
Key, the root circle of the internal spline and the outside circle of external splines coordinate for gap, and it is real that the splined shaft drives rotatable parts to rotate
Now axial relative motion.
The external splines and internal spline use involute helical spline or rectangle helical spline.
The number of teeth, modulus, pressure angle, helical angle and the rotation direction parameter all same of the external splines and internal spline.
The helical teeth helical angle of the external splines and internal spline is 30~40 °.
Gap between the root circle of the internal spline and the outside circle for the external splines being engaged is 0.2~0.6mm.
Compression spring is arranged with the splined shaft and rotatable parts.
The spring base that compression spring is set for card is provided with the splined shaft and rotatable parts, the compression spring
One end is fixed on the spring base of splined shaft, and the other end is fixed on the spring base of rotatable parts.
The splined shaft is provided at both ends with the boss that stroke is moved axially for limiting rotatable parts.
Compared with prior art, the present invention sets external splines on splined shaft, and internal spline, outer flower are set on rotatable parts
Key and internal spline use helical spline, using external splines and internal spline mating connection splined shaft and rotatable parts, and internal spline
Root circle and external splines outside circle be gap coordinate, the power perpendicular to the flank of tooth can be produced when splined shaft is rotated, the power can
Being decomposed under axial force and tangential force, responsive to axial force makes rotatable parts overcome axial resistance, and makes under tangential force effect to turn
Axial displacement occurs for the rotation of dynamic component relative spline shaft, and the axial force that the present invention is produced when transmitting torque using helical spline overcomes
Axial resistance, can rotate the rotatable parts relative spline shaft on splined shaft and realize axial movement, without other execution
Mechanism can be achieved with axial relative motion, simple in construction, and reliability is high.
Further, the number of teeth of external splines and internal spline, modulus, pressure angle, helical angle and rotation direction parameter all same, it is ensured that
The stability that external splines and internal spline coordinate, torque transmission is more steady reliable.
Further, external splines and internal spline include several uniform helical teeth, and the helical angle size of helical teeth is according to required
Axial force size depending on, helix angle is bigger, spline transmission make parts on shaft rotate moment of torsion it is smaller, the axial force of generation
It is bigger, while the translational speed of axial direction part is slower.
Further, compression spring is arranged with splined shaft and rotatable parts, only when axial force overcomes compression spring
Axial displacement could occur for elastic force, splined shaft and rotatable parts, using the compression spring of different size to splined shaft and rotation section
The relative displacement of part is limited, and when the torque of only splined shaft transmission reaches certain value, axial position could occur for rotatable parts
Move, it is ensured that reliability and applicability of the invention.
Further, using splined shaft two ends boss limitation rotatable parts axial movement stroke, it is to avoid rotatable parts
Depart from splined shaft.
Brief description of the drawings
Fig. 1 is the external splines structural representation of splined shaft；
Fig. 2 is the internal spline structure schematic diagram of rotatable parts；
Fig. 3 is the installation diagram of splined shaft and rotatable parts；
Fig. 4 is the force diagram of the single helical teeth flank of tooth of rotatable parts；
Wherein, 1- splined shafts, 2- compression springs, 3- rotatable parts, 4- spring bases, 5- boss.
Embodiment
The present invention is further explained with reference to specific embodiment and Figure of description.
Referring to Fig. 1, Fig. 2 and Fig. 3, the present invention includes the external splines being arranged on splined shaft 1 and is arranged on rotatable parts 3
Internal spline, splined shaft 1 is used to drive rotatable parts 3 to rotate, and rotatable parts 3 are set on splined shaft 1, and rotatable parts 3
The external splines of internal spline and splined shaft 1 matches, and external splines and internal spline use helical spline, the root circle of internal spline with it is outer
The outside circle of spline coordinates for gap, and splined shaft 1 drives rotatable parts 3 to rotate the relative motion for realizing axial direction.
External splines and internal spline use the tooth of involute helical spline or rectangle helical spline, external splines and internal spline
Number, modulus, pressure angle, helical angle and rotation direction parameter all same.The helical teeth helical angle of external splines and internal spline is 30~40 °.It is interior
Gap between the root circle of spline and the outside circle for the external splines being engaged is 0.2~0.6mm.
Referring to Fig. 3, it is arranged with compression spring 2, splined shaft 1 and rotatable parts 3 and is all provided with splined shaft 1 and rotatable parts 3
The spring base 4 that compression spring 2 is set for card is equipped with, one end of compression spring 2 is fixed on the spring base of splined shaft 1, the other end
On the spring base for being fixed on rotatable parts 3, the spring base of splined shaft 1 and the other end of the opposed spring seats of splined shaft 1 are respectively provided with
There is the boss 5 that stroke is moved axially for limiting rotatable parts 3.
The axial force that the present invention is produced when transmitting torque by helical teeth overcomes axial resistance, parts on shaft is realized axially fortune
Dynamic, oblique splined surfaces are evenly distributed with helical teeth, depending on the helical angle size of helical teeth is according to required axial force size, helical angle angle
Degree is bigger, and the moment of torsion that oblique spline transmission rotates parts on shaft is smaller, and the axial force of generation is bigger, while axial direction part
Translational speed it is slower.Helical spline connected mode is as shown in figure 3, Fig. 3 tiltedly spends for the involute used in Retarder
Key, other forms helical spline (such as rectangular spline) principle is identical with the oblique spline of involute, below to be used in Retarder
The oblique spline of involute exemplified by illustrate technical solution of the present invention.
Runner assembly 3 is retarder rotor, and rotor machining has and the number of teeth of splined shaft 1, modulus, pressure angle, helical angle and rotation
To etc. parameter identical helical teeth internal spline.As shown in figure 3, rotor is enclosed on splined shaft 1, the rotor driven of splined shaft 1 is rotated, due to
Spline is helical spline, can produce axial force, when axial force is sufficiently large, rotor can compression spring 2 to left movement, on rotor
Helical teeth internal spline root circle coordinates with the helical teeth external spline teeth tip circle on splined shaft 1 for gap, and gap length, which should consider, to be turned
The backlash of external splines should refer to spline relevant criterion in the centering of son, helical teeth.
Referring to Fig. 3, along P directions, rotor is rotated counterclockwise with splined shaft 1.Stress at the single flank of tooth of rotor helical spline
As shown in figure 4, the rotation of splined shaft 1 can produce power a F, F perpendicular to the rotor helical teeth flank of tooth and can be analyzed to a point axial force F1, when
When F1 is more than the elastic force of compression spring 2, rotor will be made to left movement；Producing another tangential component F2 simultaneously can make rotor relative
Splined shaft is rotated, when retarder works, power F increases, while F1 increases, the compression spring of rotor 3 is moved to the left；Retarder is released
Braking, F reduces spring force drive rotor and moved right.
Two parts that the present invention is connected using helical spline can be achieved with axial relative without other executing agencies
Motion, simple in construction, reliability is high.
Claims (8)
1. a kind of helical spline attachment structure, it is characterised in that turn including the external splines being arranged on splined shaft (1) and being arranged on
Internal spline on dynamic component (3), the splined shaft (1) is used to drive rotatable parts (3) to rotate, and rotatable parts (3) are set in flower
On key axle (1), and the external splines of the internal spline and splined shaft (1) of rotatable parts (3) matches, and the external splines and internal spline are equal
Using helical spline, the root circle of the internal spline and the outside circle of external splines coordinate for gap, and the splined shaft (1), which drives, to be turned
Dynamic component (3) rotates the relative motion for realizing axial direction.
2. a kind of helical spline attachment structure according to claim 1, it is characterised in that the external splines and internal spline are equal
Using involute helical spline or rectangle helical spline.
3. a kind of helical spline attachment structure according to claim 2, it is characterised in that the external splines and internal spline
The number of teeth, modulus, pressure angle, helical angle and rotation direction parameter all same.
4. a kind of helical spline attachment structure according to claim 3, it is characterised in that the external splines and internal spline
Helical teeth helical angle is 30~40 °.
5. a kind of helical spline attachment structure according to claim 4, it is characterised in that the root circle of the internal spline with
Gap between the outside circle for the external splines being engaged is 0.2~0.6mm.
6. a kind of helical spline attachment structure according to claim 1, it is characterised in that the splined shaft (1) and rotation
Compression spring (2) is arranged with part (3).
7. a kind of helical spline attachment structure according to claim 6, it is characterised in that the splined shaft (1) and rotation
The spring base (4) that compression spring (2) are set for card is provided with part (3), one end of the compression spring (2) is fixed on flower
On the spring base of key axle (1), the other end is fixed on the spring base of rotatable parts (3).
8. a kind of helical spline attachment structure according to claim 7, it is characterised in that the splined shaft (1) and spline
The boss (5) that stroke is moved axially for limiting rotatable parts (3) is provided with the spring base of axle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710122245.5A CN107061525A (en) | 2017-03-02 | 2017-03-02 | A kind of helical spline attachment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710122245.5A CN107061525A (en) | 2017-03-02 | 2017-03-02 | A kind of helical spline attachment structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107061525A true CN107061525A (en) | 2017-08-18 |
Family
ID=59622453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710122245.5A Pending CN107061525A (en) | 2017-03-02 | 2017-03-02 | A kind of helical spline attachment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061525A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113329901A (en) * | 2019-01-25 | 2021-08-31 | 舍弗勒技术股份两合公司 | Wheel hub drive for a vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB845019A (en) * | 1957-05-20 | 1960-08-17 | Napier & Son Ltd | Assemblies including helical splines and coil springs |
| CN202001523U (en) * | 2011-03-08 | 2011-10-05 | 重庆洋迪机电有限公司 | One-way clutch for start motor |
| CN106246707A (en) * | 2016-08-30 | 2016-12-21 | 宁波华盛汽车部件有限公司 | A kind of Retarder and rotor stator separating method thereof |
| CN206617460U (en) * | 2017-03-02 | 2017-11-07 | 陕西法士特齿轮有限责任公司 | A kind of helical spline attachment structure |
-
2017
- 2017-03-02 CN CN201710122245.5A patent/CN107061525A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB845019A (en) * | 1957-05-20 | 1960-08-17 | Napier & Son Ltd | Assemblies including helical splines and coil springs |
| CN202001523U (en) * | 2011-03-08 | 2011-10-05 | 重庆洋迪机电有限公司 | One-way clutch for start motor |
| CN106246707A (en) * | 2016-08-30 | 2016-12-21 | 宁波华盛汽车部件有限公司 | A kind of Retarder and rotor stator separating method thereof |
| CN206617460U (en) * | 2017-03-02 | 2017-11-07 | 陕西法士特齿轮有限责任公司 | A kind of helical spline attachment structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113329901A (en) * | 2019-01-25 | 2021-08-31 | 舍弗勒技术股份两合公司 | Wheel hub drive for a vehicle |
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