CN109296665A - A kind of mobile end segment of car transmission shaft - Google Patents
A kind of mobile end segment of car transmission shaft Download PDFInfo
- Publication number
- CN109296665A CN109296665A CN201811435482.8A CN201811435482A CN109296665A CN 109296665 A CN109296665 A CN 109296665A CN 201811435482 A CN201811435482 A CN 201811435482A CN 109296665 A CN109296665 A CN 109296665A
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- CN
- China
- Prior art keywords
- ball
- end segment
- transmission shaft
- mobile end
- groove
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Classifications
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- 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
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/202—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints
- F16D3/205—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
- F16D3/2057—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part having four or more pins, e.g. with compensation for relative pin movement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
Abstract
A kind of mobile end segment of car transmission shaft, belongs to auto parts, with cylinder outer race, pin frame；The pin frame is equipped with ball on each pin, the inner ring surface of each ball is circumferentially rotated with corresponding pin, is in axial sliding connection along four pins are laid with week；Four ball grooves opposite with four balls are equipped in the cylinder outer race, the two sides cell wall of each ball groove is respectively provided with alley, and the outer ring surface both ends of each ball are connected with the sliding of two alleys, the rolling in corresponding ball groove；Due to the structure using four ball pins, stress condition inside mobile end segment is improved, operating noise is small, long service life.
Description
Technical field
The invention patent discloses a kind of mobile end segment of car transmission shaft, belongs to truck drive shaft technical field.
Background technique
Car transmission shaft is the important safety component in vehicle, product quality and service life and personal safety and driving
The comfortable sensitivity of personnel is closely bound up, and in car constant-speed Cardan shaft, the mobile end segment of most of car transmission shaft is adopted
With the three pin section shape such as GI, KPJ, AAR, structure is mature, the sliding power of shifting is small, driving comfort, handling good.But with automobile technology
And technology is showing improvement or progress day by day, the durability of each component of automobile increases substantially, turbocharging technology it is universal, but also engine
Power torque revolving speed also improves day by day, this proposes harsher performance requirement, the prior art to the mobile end segment of three pin transmission shafts
Keep it more wear-resisting around how improving the mobile each working face quenching technical of end segment of three pin transmission shafts mostly, and how to improve
Machining accuracy carries out noise reduction to reduce the frictional force of each working face, or to material and lubricating oil or parts surface wear-resistant coating
It improves etc., due to the not essential change of its structure, not only increases the processing and manufacturing of the mobile end segment of three pin transmission shafts
Cost also improves its routine use maintenance cost, and practical application effect is undesirable.
Summary of the invention
The object of the present invention is to provide a kind of mobile end segments of car transmission shaft, improve from its structure inside mobile end segment by
Power situation, makes that its operating noise is small, the service life is long.
The technical scheme is that a kind of mobile end segment of car transmission shaft, it is characterised in that: have cylinder outer race (1), pin
Frame (2)；The pin frame is equipped with ball (4) on each pin along four pins (3) are laid with week, the inner ring surface of each ball with
Corresponding pin is circumferentially rotated, is in axial sliding connection；Four ball grooves opposite with four balls are equipped in the cylinder outer race
(5), the two sides cell wall of each ball groove is respectively provided with alley (6), the outer ring surface both ends of each ball and two alleys in corresponding ball groove
Sliding rolls connection.
The slot bottom of each ball groove is equipped with mobile pivot angle type alveolus (7).
The volume in each mobile pivot angle type alveolus is 2.7~6.3 cubic centimetres.
The outer ring surface of each ball is circumferentially equipped with annular groove (8).
The quantity of annular groove is 1 on each ball, and the groove width of each annular groove is 0.5~0.7 millimeter, and groove depth is 0.2~0.4
Millimeter.
The slippage of each ball is 0.5~3 millimeter.
Circumferentially arranged at least two translot annulus (9) on the outer ring surface of each ball, every translot annulus is by along ball
Axially extending and quantity >=72 translots form, and each translot in adjacent translot band is staggeredly located.
The groove width of each translot is 0.02~0.7 millimeter, and the groove depth of each translot is 0.02~0.3 millimeter.
The outer ring surface of each ball is equipped with the pattern groove (10) of cross-like.
The invention has the advantages that the three-wire type contact of the mobile end segment of three pin transmission shafts is changed to the four of four pins
Wire type contact；One is had more by the line of force, under the output of same torque, the pressure reduction of mobile end segment working face is former stress
The 3/4 of state, the particularly pertinent technical effect of generation；And the unexpected utilization rate for improving engine output torque,
It (is analyzed with alley bottom midpoint stress condition about from COS35 ° under the situation that linear contact pressure is less than former three plug structures
0.82 is increased to the COS28 ° of using effect for 0.88) reaching same state, i.e., about reduces in the single alley bottom stress of cylinder outer race
It can reach identical driving effect for 3/4 × 0.82/0.88 ≈ 0.7 of former stress, engine is output to the power of gearbox
Utilization rate improves about 7%.The inter deterioration of the requirement and transmission shaft movement end segment of engine output will be greatly lowered in this
It is worn with transmission efficiency cylinder outer race shank.So that noise is small when running car, more comfortable, the mobile end segment of extension transmission shaft is driven
The Aftermarket Claims of manufacturing enterprise are greatly lowered under the raising of customer satisfaction with the service life.Factors above is comprehensive together,
Also create the technical effect of energy resource saving.
The slippage of restriction can make the pivot angle of movable joint end shaft be up to 27 degree；Make single alley using four pins
Bottom stress reduce after, cylinder outer race shape size constancy, material is constant, heat treatment method is constant under conditions of, Ji Nengzeng
Add mobile pivot angle type alveolus, moreover it is possible to its use intensity is kept, mobile pivot angle type alveolus can be such that built-in idler wheel swing space increases,
Automobile road uneven road surface work when driving or after hundreds of thousands of kilometers surface wear it is overproof when, be avoided that component interference occur it is different
It rings, while the buffer area when movement pivot angle type alveolus can also be as lubricating oil expanded by heating (oil gas), reduces transmission shafting oil
The sealing of envelope is born, and considerably reducing the probability of oil leak, (analog quantity is calculated to be reduced from original about 3 ‰ Leakage probability
To about 0.2 ‰ Leakage probabilities), there is mobility due to being heated after lubricating grease work, the volume for limiting pivot angle type alveolus can store
Further amounts of lubricating grease can make the mobile end segment of car transmission shaft accomplish substantially all the life using non-maintaining.
Those skilled in the art is it is believed that working face in the mobile end segment of transmission shaft is more smooth, surface processing accuracy
Higher, sliding friction resistance is smaller, but under actual condition, and fitting is close between the high mating surface of surface accuracy, often in
Half dry grinding state is very high to the quality requirements of lubricant grease in the environment of high temperature and pressure；And in the outer ring of each ball in the application
The technology prejudice that annular groove, translot annulus, pattern groove have then broken this field is set on face, by laboratory to equipped with annular groove
And/or the ball of translot annulus does pressure frictional force and noise test, under the micro- sem observation of high speed, annular groove, translot, decorative pattern
Storage lanyard grease not only effectively alleviates outside ball in the moment of ball and work face contact because of pressure expanded by heating in slot
Impact force between surface and corresponding working face reduces noise, and under the action of grease, the outer surface of ball and work
Frictional force between face becomes smaller, and performance is substantially better than the smooth ball in surface, and annular groove can be such that ball circumferentially slides along pin
Resistance becomes smaller, and translot can make ball become smaller along pin axial direction skid resistance, and pattern groove is in ball between pin circumferential and axial
Reduce skid resistance.Each translot in adjacent translot band is staggeredly located, and generates vibration when being avoided that ball sliding rotation.
The application changes the mobile end segment of three pins of the mobile end segment of original car transmission shaft (GI saves KPJ section AAR section)
Construction, using four pin section shapes for the use of service life and reasonable stress performance two be better than existing three pins section shape, answer
With the car of the mobile end segment of the application transmission shaft, will be greatly improved in driving comfort degree and transmission shaft service life.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the mobile end segment of car transmission shaft of the present invention.
Fig. 2 is a kind of vertical section structure schematic diagram of the mobile end segment of car transmission shaft of the present invention.
Fig. 3 is the structural schematic diagram that frame is sold in invention.
1 cylinder outer race, 2 pin framves, 3 pins, 4 balls, 5 ball grooves, 6 alleys, 7 mobile pivot angle type alveolus, 8 annular grooves, 9 cross in figure
Grooved ring band, 10 pattern grooves.
Specific embodiment
A kind of mobile end segment of car transmission shaft, has cylinder outer race 1, pin frame 2；The pin frame is along being laid with four pins week
Column 3, ball 4 is equipped on each pin, and the inner ring surface of each ball is circumferentially rotated with corresponding pin, is in axial sliding connection；Described
Four ball grooves 5 opposite with four balls are equipped in cylinder outer race, the two sides cell wall of each ball groove is respectively provided with alley 6, each ball
Outer ring surface both ends are connected with the sliding of two alleys, the rolling in corresponding ball groove.
The slot bottom of each ball groove is equipped with mobile pivot angle type alveolus 7.The volume in each mobile pivot angle type alveolus is 2.7~6.3 cubes
Centimetre.
The outer ring surface of each ball is circumferentially equipped with annular groove 8.The quantity of annular groove is 1 on each ball, each annular groove
Groove width is 0.5~0.7 millimeter, and groove depth is 0.2~0.4 millimeter.
The slippage of each ball is 0.5~3 millimeter.
Circumferentially arranged at least two translot annulus 9 on the outer ring surface of each ball, every translot annulus is by along ball axis
To the translot of extension and quantity >=72 composition, each translot in adjacent translot band is staggeredly located.The groove width of each translot is
0.02~0.7 millimeter, the groove depth of each translot is 0.02~0.3 millimeter.
The outer ring surface of each ball is equipped with the pattern groove 10 of cross-like.
The cylinder outer race, base-material are that 55# medium carbon steel (using mid frequency induction hardening tempering) or mild steel (are quenched using carburizing
Fire, tempering), small end spline position is connected with sedan gear-box；The pin frame, base-material is mild steel, using carburizing
Quenching, tempering；The torque of gearbox output is passed to four on four pin framves by four of cylinder outer race big end by the line of force
Ball (outer surface is tempered through mid frequency induction hardening) is transferred to the fixation connecting with automotive hub by the shaft being connected with internal spline again
In end segment, to achieve the purpose that drive car.
The assembling process of the mobile end segment of car transmission shaft is: needle roller is first installed on four pins of pin frame (one week),
Then put on ball, then retaining ring be installed on the outside of needle roller, after with being allowed to fixed in the jump-ring slot of wire circlip insertion pin, most
Pin frame assembly (pin frame internal spline band jump-ring slot side is placed inwardly, for installing transmission shaft lever) is packed into cylinder outer race and is completed afterwards
Movable joint assembly.
Claims (9)
1. a kind of mobile end segment of car transmission shaft, it is characterised in that: have cylinder outer race (1), pin frame (2)；The pin frame is along week
It is laid with four pins (3), ball (4) is housed on each pin, the inner ring surface of each ball circumferentially rotates with corresponding pin, axis
To being slidably connected；Four ball grooves (5) opposite with four balls are equipped in the cylinder outer race, the two sides cell wall of each ball groove is each
Equipped with alley (6), the outer ring surface both ends of each ball are connected with the sliding of two alleys, the rolling in corresponding ball groove.
2. the mobile end segment of a kind of car transmission shaft according to claim 1, it is characterised in that: the slot bottom of each ball groove, which is equipped with, to be moved
Movable pendulum angle-style alveolus (7).
3. the mobile end segment of a kind of car transmission shaft according to claim 2, it is characterised in that: each mobile pivot angle type alveolus
Volume is 2.7~6.3 cubic centimetres.
4. the mobile end segment of a kind of car transmission shaft according to claim 1, it is characterised in that: the outer ring surface of each ball is along circle
Week is equipped with annular groove (8).
5. the mobile end segment of a kind of car transmission shaft according to claim 4, it is characterised in that: the number of annular groove on each ball
Amount is 1, and the groove width of each annular groove is 0.5~0.7 millimeter, and groove depth is 0.2~0.4 millimeter.
6. a kind of mobile end segment of car transmission shaft according to claim 1, it is characterised in that: the slippage of each ball is
0.5~3 millimeter.
7. the mobile end segment of a kind of car transmission shaft according to claim 1, it is characterised in that: edge on the outer ring surface of each ball
At least two translot annulus (9) are circumferentially with, every translot annulus is by translot axially extending and quantity >=72 along ball
It forms, each translot in adjacent translot band is staggeredly located.
8. a kind of mobile end segment of car transmission shaft according to claim 7, it is characterised in that: the groove width of each translot is
0.02~0.7 millimeter, the groove depth of each translot is 0.02~0.3 millimeter.
9. the mobile end segment of a kind of car transmission shaft according to claim 1, it is characterised in that: set on the outer ring surface of each ball
There is the pattern groove (10) of cross-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811435482.8A CN109296665A (en) | 2018-11-28 | 2018-11-28 | A kind of mobile end segment of car transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811435482.8A CN109296665A (en) | 2018-11-28 | 2018-11-28 | A kind of mobile end segment of car transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109296665A true CN109296665A (en) | 2019-02-01 |
Family
ID=65144094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811435482.8A Pending CN109296665A (en) | 2018-11-28 | 2018-11-28 | A kind of mobile end segment of car transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109296665A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4689035A (en) * | 1984-07-02 | 1987-08-25 | Uni-Cardan Aktiengesellschaft | Homokinetic very freely sliding joint in particular for operating at high speed |
| JPH044321A (en) * | 1990-04-19 | 1992-01-08 | Toyoda Mach Works Ltd | Constant speed joint |
| CN1162704A (en) * | 1996-02-15 | 1997-10-22 | 本田技研工业株式会社 | constant velocity joint |
| JP2000027882A (en) * | 1998-07-15 | 2000-01-25 | Ntn Corp | Sliding constant velocity joint |
| CN102741576A (en) * | 2010-02-09 | 2012-10-17 | 株式会社捷太格特 | Sliding tripod constant velocity joint |
| CN205978150U (en) * | 2016-08-26 | 2017-02-22 | 宁波纬尚汽车零部件有限公司 | Drive shaft assembly with intersection oil groove |
| CN206072150U (en) * | 2016-10-12 | 2017-04-05 | 台州英克尔传动轴有限公司 | A kind of ball with external spiral oil guide groove |
-
2018
- 2018-11-28 CN CN201811435482.8A patent/CN109296665A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4689035A (en) * | 1984-07-02 | 1987-08-25 | Uni-Cardan Aktiengesellschaft | Homokinetic very freely sliding joint in particular for operating at high speed |
| JPH044321A (en) * | 1990-04-19 | 1992-01-08 | Toyoda Mach Works Ltd | Constant speed joint |
| CN1162704A (en) * | 1996-02-15 | 1997-10-22 | 本田技研工业株式会社 | constant velocity joint |
| JP2000027882A (en) * | 1998-07-15 | 2000-01-25 | Ntn Corp | Sliding constant velocity joint |
| CN102741576A (en) * | 2010-02-09 | 2012-10-17 | 株式会社捷太格特 | Sliding tripod constant velocity joint |
| CN205978150U (en) * | 2016-08-26 | 2017-02-22 | 宁波纬尚汽车零部件有限公司 | Drive shaft assembly with intersection oil groove |
| CN206072150U (en) * | 2016-10-12 | 2017-04-05 | 台州英克尔传动轴有限公司 | A kind of ball with external spiral oil guide groove |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190201 |