CN202867607U - Ball spline type ball cage constant speed universal coupling - Google Patents
Ball spline type ball cage constant speed universal coupling Download PDFInfo
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- CN202867607U CN202867607U CN 201220449171 CN201220449171U CN202867607U CN 202867607 U CN202867607 U CN 202867607U CN 201220449171 CN201220449171 CN 201220449171 CN 201220449171 U CN201220449171 U CN 201220449171U CN 202867607 U CN202867607 U CN 202867607U
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- spline housing
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Abstract
The utility model discloses a ball spline type ball cage constant speed universal coupling which comprises a telescopic structure and a coupling joint assembly. Connecting ends are arranged at two sides of the coupling joint assembly. The telescopic structure comprises a hollow shaft connected with one side of the coupling joint assembly. One end of the hollow shaft is connected with a spline sleeve. A spline shaft extends into the hollow shaft through the end portion of the spline sleeve. The tail end of the spline shaft is provided with a shaft check ring. The end portion of the spline sleeve is sealed by a seal end cover. A ball is arranged between the spline sleeve and the spline shaft. Return devices are arranged at the left side and the right side of the ball and abut pressed on the end face of a hole check ring. The ball spline type ball cage constant speed universal coupling has the advantages of capable of achieving synchronous transmission of constant speed, high speed and heavy load between a drive shaft and a driven shaft and transmission with a large angle and a lone stretch, being simple and compact in structure, small in return diameter, convenient to produce, low in cost, completely eliminating harmful vibration, impact and slippage resistance, being stable and flexible in operation and high in transmission accuracy.
Description
Technical field
The utility model relates to a kind of ball-cage constant velocity universal coupling, specifically is applied to the ball spline type ball-cage constant velocity universal coupling in the various device driving mechanisms such as metallurgy, oil, vehicle, naval vessel, lathe.
Background technique
At present, in the flexible greatly Sliding Structures of coupling, the overwhelming majority adopts the spline contact type structure, directly contacted with splined shaft and slided and realize the length compensation function by rectangle or involute splines sleeve pipe, adopt such structure, surface friction drag is large, noise is large, temperature rise, and it is very fast to wear and tear; Although the improvement that reaches dip-coating nylon on the metal spline in sealing is also arranged, and using effect and life-span are unsatisfactory, do not have material alterations.
Ball-cage constant velocity universal coupling is because of its superior performance, obtained increasing application, played good economic benefit, but in large shrinking structure, still continue to use the spline contact type structure, the centering weak effect, surface friction drag is large, quick abrasion, have a strong impact on the smooth operation of ball-cage constant velocity coupling, accelerated the precision forfeiture of ball cage core component, shortened design service life, existing ball spline on the while market, complex structure, bearing torque is little, and the slippage stroke is short, manufacture cost is high, can't satisfy the needs of the large flexible compensation transmission of high-speed overload.
Summary of the invention
It is a kind of simple and compact for structure that the utility model provides, and transmitting torque is large, is convenient to processing, with low cost, smooth running, the ball spline type ball-cage constant velocity universal coupling of long service life.
In order to solve the problems of the technologies described above, ball spline type ball-cage constant velocity universal coupling of the present utility model, comprise shrinking structure and the coupling joint assembly that is arranged on the shrinking structure two ends, the both sides of coupling joint assembly are provided with two connecting ends that are connected with driving mechanism, shrinking structure comprises one section hollow shaft that is connected on the side coupling joint assembly wherein, one end of hollow shaft is connected with spline housing, splined shaft is connected on the other side coupling joint assembly, splined shaft extend in the hollow shaft from the spline housing end, and the spline the tip of the axis is provided with shaft block ring; The spline housing end seals with end cover; Be mounted with ball between spline housing and the splined shaft, the left and right sides of spline housing is provided with reverser, and reverser is pressed over the hole with on the end face of back-up ring.
The connecting end of described coupling both sides is spline, axle sleeve or flange.
Described coupling joint assembly is ball cage assembly, universal-joint fork assembly or crowned teeth structure.
The surface of contact of described reverser and ball is U-shaped.
Also be provided with the lubricating cup that leads in spline housing and the formed cavity of splined shaft on the described spline housing.
The key tooth sectional shape of described spline housing and splined shaft is isosceles trapezoid, and ball is placed in the formed cavity of trapezoidal root by spline housing and splined shaft.
Be provided with seal arrangement between described end cover and the spline housing, described seal arrangement is felt and ageing-resistant rubber material.
Filling molybdenum disulfide (MoS2) complex lithium grease in the formed cavity of described spline housing and splined shaft, loading take up space 50%～70%.
Have a U-shaped end face on the described reverser, being provided with between the U-shaped end face of reverser and the key tooth of spline housing can be by the gap of ball.
The utility model has the advantage of:
1, realize the constant speed Synchronous Transmission fully, possess good angle, radially, the nose balance performance, realize the high-speed overload of driving and driven between centers, wide-angle, long flexible transmission agency;
2, simple and compact for structure, the revolution external diameter is little, is convenient to make, and is with low cost; Just can realize its high-precision requirement and Economy with conventional standard equipment;
3, eliminate harmful vibrations, impact and skid resistance fully, smooth running is flexible, and transmission accuracy is high; Pure rolling by ball between the trapezoidal key tooth in the spline housing and the splined shaft upper trapezoid key tooth is come transmitting torque, and carry out telescopic moving compensation, has the little (flank of tooth friction coefficient mu ≈ 0.15～0.45 of frictional loss, the coefficient of rolling friction μ ≈ 0.001～0.005 of steel ball), can realize high speed, high-precision, efficient driving;
4, accuracy of manufacturing is high, and bearing capacity is large, long service life;
5, seal lubrication is good, reduces and safeguards; The interior long-acting lubricating grease that ageing-resistant performance is good, contain extreme pressure agent of annotating of active chamber, the maintenance of refueling about a year gets final product minimizing maintenance cost and labor intensity.
6, quick and easy for installation; Owing to possess larger extending amount, need not move two end equipment and just can easily install, and the alignment error that allows to be large, axle center centering is easy.
Description of drawings
Fig. 1 is the structural representation of the utility model ball spline type ball-cage constant velocity universal coupling;
Fig. 2 is that the A-A of Fig. 1 is to structural representation;
Fig. 3 is the B place structure for amplifying schematic representation of Fig. 1.
Among the figure: 1, connecting end; 2, coupling joint assembly; 3, end cover; 4, seal arrangement; 5, hole back-up ring; 6, reverser; 7, ball; 8, spline housing; 9, splined shaft; 10, lubricating cup; 11, hollow shaft; 12, shaft block ring.
Embodiment
Below in conjunction with the drawings and specific embodiments, ball spline type ball-cage constant velocity universal coupling of the present utility model is described in further detail.
As shown in the figure, ball spline type ball-cage constant velocity universal coupling of the present utility model, comprise shrinking structure and the coupling joint assembly 2 that is arranged on the shrinking structure two ends, coupling joint assembly can be set to ball cage assembly, universal-joint fork assembly or crowned teeth structure according to actual needs, can certainly be set to the coupler structure of other type; The both sides of coupling joint assembly 2 are provided with two connecting ends 1 that are connected with driving mechanism, and the connecting end of coupling both sides both can be spline, also can be axle sleeve or flange; Shrinking structure comprises one section hollow shaft 11 that is connected on the side coupling joint assembly wherein, hollow shaft can be seamless steel pipe, one end of hollow shaft 11 is connected with spline housing 8, splined shaft 9 is connected on the other side coupling joint assembly, splined shaft 9 extend in the hollow shaft 11 from spline housing 8 ends, and the end of splined shaft 9 is provided with shaft block ring 12; Spline housing 8 ends seal with end cover 3; Be mounted with ball 7 between spline housing 8 and the splined shaft 9, ball can be steel ball, the quantity of ball can specifically not arrange according to actual needs it is restricted, the left and right sides of ball 7 is provided with ball reverser 6, has a U-shaped end face on the reverser 6, being provided with between the U-shaped end face of reverser and the key tooth of spline housing can be by the gap of ball 7, ball reverser 6 is pressed over the hole with on the end face of back-up ring 5, be provided with seal arrangement 4 between end cover 3 and the spline housing 8, seal arrangement is felt and ageing-resistant rubber material, also be provided with the lubricating cup 10 that leads in spline housing 8 and the splined shaft 9 formed cavitys on the spline housing 8, filling molybdenum disulfide (MoS2) complex lithium grease in spline housing 8 and the splined shaft 9 formed cavitys, loading take up space 50%～70%.
Preferred key tooth sectional shape with spline housing 8 and splined shaft 9 was isosceles trapezoid during this use was novel, ball 7 is placed in the formed cavity of trapezoidal root by spline housing 8 and splined shaft 9, the similar large pressure angle that this spline housing inwall and splined shaft cylindrical arrange respectively vertically, the isosceles trapezoid key tooth of involute profile, it is very convenient to process, can on vertical or Milling machineshorizontal, mill out easily, the heat treatment deformation that comprises long splined shaft of later stage also can make things convenient for the economic horizontal hone grinding two side contacts face control accuracies of passing through; Detection in the manufacture process is also extremely convenient, and not resembling has strict requirement to cutter, grinding tool, measurer, frock etc. the Machining Arc groove; Because the trapezoidal key dentation structure of spline housing and splined shaft, ball self-centering effect in the cavity that interior external key tooth forms is good, steel ball and interior outer rolling surface of contact are 3 points, have avoided stress to concentrate, and have realized high pulling torque transmission and good lubricating.
By above-mentioned setting, spline housing is set on the splined shaft, spline housing two ends arrange the U-shaped ball reverser of corresponding each spline housing key tooth, are locked with back-up ring by the hole; Be mounted with ball between spline housing and the splined shaft, when transmitting torque and flexible slippage, stand under load sidewinders pearl and moves as axial rolling according to splined shaft moving direction, and zero load is sidewindered pearl and done reversing motion along cavity clearance, after arriving spline housing two ends, import the circular flow of stand under load side by the ball reverser; Seal arrangement is arranged at opening end, and with compressing the end cap riveted joint, in the flexible stroke that requires, ball rolls spline housing and splined shaft are subjected to displacement, and satisfies prime mover and by the telescopic variation demand of Static and dynamic length between the motivation.
Can be found out by above-mentioned arranging, ball spline type ball-cage constant velocity universal coupling of the present utility model, spline housing and splined shaft are large Spielpassung circumferentially, without directly contact, to realize the pure rolling friction of ball; Pure rolling by ball between the trapezoidal key tooth in the spline housing and the splined shaft upper trapezoid key tooth cooperates the realization radial load, moment of torsion transmits and the telescopic compensation, surface friction drag is almost nil, straight line slippage stroke is long, simple and compact for structure, transmitting torque is large, be convenient to processing, with low cost, smooth running, long service life has effectively solved vibrations, temperature rise, surface friction drag has improved working life and effect greatly, can eliminate harmful vibrations fully by this ball type ball-cage constant velocity coupling, impact and skid resistance, realize complete constant speed, high-speed overload, wide-angle, long flexible, the long lifetime uses.
Claims (9)
1. ball spline type ball-cage constant velocity universal coupling, comprise shrinking structure and the coupling joint assembly (2) that is arranged on the shrinking structure two ends, the both sides of coupling joint assembly (2) are provided with two connecting ends (1) that are connected with driving mechanism, it is characterized in that: described shrinking structure comprises one section hollow shaft (11) that is connected on the side coupling joint assembly wherein, one end of hollow shaft (11) is connected with spline housing (8), splined shaft (9) is connected on the other side coupling joint assembly, splined shaft (9) extend in the hollow shaft (11) from spline housing (8) end, and the end of splined shaft (9) is provided with shaft block ring (12); Spline housing (8) end seals with end cover (3); Be mounted with ball (7) between spline housing (8) and the splined shaft (9), the left and right sides of ball (7) is provided with reverser (6), and reverser (6) is pressed on the end face of hole with back-up ring (5).
2. according to ball spline type ball-cage constant velocity universal coupling claimed in claim 1, it is characterized in that: the connecting end (1) of described coupling both sides is spline, axle sleeve or flange.
3. according to ball spline type ball-cage constant velocity universal coupling claimed in claim 1, it is characterized in that: described coupling joint assembly is ball cage assembly, universal-joint fork assembly or crowned teeth structure.
4. according to ball spline type ball-cage constant velocity universal coupling claimed in claim 1, it is characterized in that: described reverser (6) is U-shaped with the surface of contact of ball (7).
5. according to ball spline type ball-cage constant velocity universal coupling claimed in claim 1, it is characterized in that: also be provided with the lubricating cup (10) that leads in spline housing (8) and the formed cavity of splined shaft (9) on the described spline housing (8).
6. according to ball spline type ball-cage constant velocity universal coupling claimed in claim 1, it is characterized in that: the key tooth sectional shape of described spline housing (8) and splined shaft (9) is isosceles trapezoid, and ball (7) is placed in the formed cavity of trapezoidal root by spline housing (8) and splined shaft (9).
7. according to ball spline type ball-cage constant velocity universal coupling claimed in claim 1, it is characterized in that: be provided with seal arrangement (4) between described end cover (3) and the spline housing (8), described seal arrangement is felt and ageing-resistant rubber material.
8. according to ball spline type ball-cage constant velocity universal coupling claimed in claim 1, it is characterized in that: filling molybdenum disulfide complex lithium grease in described spline housing (8) and the formed cavity of splined shaft (9), loading take up space 50%～70%.
9. according to ball spline type ball-cage constant velocity universal coupling claimed in claim 1, it is characterized in that: have a U-shaped end face on the described reverser (6), be provided with the gap that to pass through ball (7) between the U-shaped end face of reverser and the key tooth of spline housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220449171 CN202867607U (en) | 2012-09-05 | 2012-09-05 | Ball spline type ball cage constant speed universal coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220449171 CN202867607U (en) | 2012-09-05 | 2012-09-05 | Ball spline type ball cage constant speed universal coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867607U true CN202867607U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220449171 Expired - Fee Related CN202867607U (en) | 2012-09-05 | 2012-09-05 | Ball spline type ball cage constant speed universal coupling |
Country Status (1)
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|---|---|
| CN (1) | CN202867607U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443594A (en) * | 2014-09-18 | 2016-03-30 | 日立汽车***九州株式会社 | Power transmission shaft and propeller shaft for vehicle |
| CN106678189A (en) * | 2017-03-23 | 2017-05-17 | 青岛科技大学 | Duplex vibration reduction type non-centering constant-angular-velocity universal coupling |
| CN108302131A (en) * | 2018-04-15 | 2018-07-20 | 耐世特凌云驱动***(涿州)有限公司 | It is a kind of can axial rolling constant velocity shaft assembly |
| CN109477527A (en) * | 2016-07-26 | 2019-03-15 | 日本精工株式会社 | Telescopic shaft |
| CN114060306A (en) * | 2021-11-30 | 2022-02-18 | 厦门水务集团有限公司 | Low-disturbance double-foundation vertical water pump unit |
-
2012
- 2012-09-05 CN CN 201220449171 patent/CN202867607U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443594A (en) * | 2014-09-18 | 2016-03-30 | 日立汽车***九州株式会社 | Power transmission shaft and propeller shaft for vehicle |
| CN105443594B (en) * | 2014-09-18 | 2019-08-30 | 日立汽车***九州株式会社 | Power transmission shaft and propeller shaft for vehicle |
| CN109477527A (en) * | 2016-07-26 | 2019-03-15 | 日本精工株式会社 | Telescopic shaft |
| CN109477527B (en) * | 2016-07-26 | 2021-05-11 | 日本精工株式会社 | Telescopic shaft |
| CN106678189A (en) * | 2017-03-23 | 2017-05-17 | 青岛科技大学 | Duplex vibration reduction type non-centering constant-angular-velocity universal coupling |
| CN106678189B (en) * | 2017-03-23 | 2023-11-21 | 青岛科技大学 | Double vibration damping type non-centering constant angular velocity universal coupling |
| CN108302131A (en) * | 2018-04-15 | 2018-07-20 | 耐世特凌云驱动***(涿州)有限公司 | It is a kind of can axial rolling constant velocity shaft assembly |
| CN114060306A (en) * | 2021-11-30 | 2022-02-18 | 厦门水务集团有限公司 | Low-disturbance double-foundation vertical water pump unit |
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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 |
Granted publication date: 20130410 Termination date: 20150905 |
|
| EXPY | Termination of patent right or utility model |