CN2739407Y - Cross-groove type ball coupling - Google Patents
Cross-groove type ball coupling Download PDFInfo
- Publication number
- CN2739407Y CN2739407Y CN 200420068028 CN200420068028U CN2739407Y CN 2739407 Y CN2739407 Y CN 2739407Y CN 200420068028 CN200420068028 CN 200420068028 CN 200420068028 U CN200420068028 U CN 200420068028U CN 2739407 Y CN2739407 Y CN 2739407Y
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- CN
- China
- Prior art keywords
- star
- sleeve
- shaped
- ball
- axis
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model provides a cross-groove type ball coupling used for power mechanical driving. A star shaped axis is provided with an arc-shaped groove forming an outer tooth shape. A star shaped sleeve is provided with a corresponding arc-shaped groove forming an inner tooth shape. The outer tooth of the star shaped axis and the inner tooth of the star shaped sleeve are mutually staggered. The two sides of the inner tooth of the star shaped sleeve are provided with horizontal arc-shaped roller tracks parallel with the axial lead of the star shaped sleeve. The two sides of the outer tooth of the star shaped axis are provided with vertical arc-shaped roller tracks vertical with the axial lead of the star shaped axis. Balls are contained in the horizontal arc-shaped roller tracks and the vertical arc-shaped roller tracks. The utility model has the advantages of high carrying capacity, high drive efficiency, long service life, larger axial line break angle, high operation reliability, simple structure, and broad application.
Description
Technical field
A kind of dynamic power machine transmission device belongs to mechanical transmissioning piece.
Background technique
Coupling is a kind of mechanical transmissioning piece in industrial trade extensive uses such as metallurgy, chemical industry, building materials, mine, oil, automobile, shipbuildings.Traditional coupling has kind surplus flanged type, drum-shaped tooth type, slide block type, the Cardon universal joint etc. ten.Recently two kinds of more advanced ball couplings occur: a kind of is that midsplit type ball coupling, another kind are the bayonet-type ball couplings.
As Fig. 5, shown in Figure 6, the star axle 3 of midsplit type ball coupling ' on have semi-circular groove, star sleeve 1 ' go up correspondence to have semi-circular groove, ball 2 ' be entrenched in star axle 3 ' and star sleeve 1 ' semi-circular groove in, star axle 3 ' periphery and star sleeve 1 ' interior week with ball 2 ' the distribution circle center line be the benchmark symmetry separately.Working method is a star axle 3 ' by ball 2 ' promotion star sleeve 1 ' rotation.The star axle promotes the ball inboard, and the resistance of star sleeve is the outside from acting in opposition in ball, makes ball be subjected to shearing force.The advantage of this coupling is simple in structure, and is easy to maintenance, and the permission axis has the knuckle below 3 °, axially allowing the star axle that certain moving about arranged.Be that the power that ball is subjected to is shearing force outside its deficiency, ball is frangible to cause working life short, adds to be subjected to coupling axially to reach the restriction of radial dimension, and ball can not be provided with too big too much, and therefore the bearing capacity of whole coupling is not high.In addition, the axial knuckle of permission is too small.
As Fig. 7, shown in Figure 8, the star axle 3 of bayonet-type ball coupling " on have curve bath and form external tooth form; " go up correspondence has curve bath and forms internal tooth form star sleeve 1, ball 2 " is entrenched in star axle 3 " and star sleeve 1 " curve bath in, the internal tooth of star axle 3 " external tooth and star sleeve 1 " is staggered mutually.Ball 2 is " by being squeezed transmitting movement and moment of torsion.The advantage of this coupling is that bearing capacity increases, and allows axis that knuckle below 5 ° and certain play are arranged.But still exist outside the following deficiency:
1, at the axis knuckle during greater than 3 °, since ball with the inside and outside horizontal raceway of axis parallel on be not subjected to effective constraint, the position of each ball is uncertain during running, promptly can not be simultaneously stressed, the ball that only is on the Vertical direction could be stressed, though, still still be very restricted so bearing capacity increases than midsplit type ball coupling.
2, since ball with the inside and outside horizontal raceway of axis parallel on can not effectively be retrained, so coupling can not be effectively controlled moving of axial direction, use a lot of problems of bringing to coupling.
3, structure more complicated.
Summary of the invention
The purpose of this utility model provides a kind of cross slot type ball coupling, accomplishes that bearing capacity is big, allows the axis knuckle big, moves axially and can effectively control, the operational reliability height.
Technological scheme is to improve on the basis of bayonet-type ball coupling, remain and have curve bath formation external tooth form on the star axle, have corresponding curve bath on the star sleeve and form internal tooth form, the external tooth of star axle and the internal tooth of star sleeve stagger mutually, improvements are that star sleeve internal tooth both sides have the horizontal arcuate groove with the star sleeve axis parallel, there is the vertical arcuate groove vertical with star axle shaft axis star axle external tooth both sides, ball is included among horizontal arcuate groove and the vertical arcuate groove, when star sleeve and star axle all are horizontal, when promptly not having the axis knuckle, horizontal arcuate groove on the star sleeve is orthogonal with the vertical arcuate groove on the star axle, forms cross.
When star sleeve and star axle had the axis knuckle, ball can freely roll or slide by along continuous straight runs on the horizontal arcuate groove on the star sleeve, and ball can be free to slide on the vertical arcuate groove on the star axle simultaneously, and whole coupling is turned round reliably.
Compared with the prior art, the utility model has following characteristics:
1, has advantages of high bearing capacity, transmission efficiency height, long service life.
Because the surface of contact of ball and star sleeve, star axle all is similar to semicircle, area of contact is big, and is stressed reasonable, therefore can increase substantially bearing capacity and transmission efficiency, increases the service life.
2, allow larger axis line knuckle, operational reliability height.
Because ball is subjected to the constraint of the vertical arcuate groove on the star axle, therefore can be along with the swing of star axle, the axis knuckle greater than 5 ° situation under, still can reliably turn round effectively.
3, simple in structure, applied range.
The utility model is simple in structure, and making and use are all more convenient, so kind of coupling surplus substituting existing ten, and purposes is very extensive, can be applicable to various industrial trades.
Description of drawings
Fig. 1 be cross slot type ball coupling A to sectional drawing, promptly the A of Fig. 2 is to view
Fig. 2 be cross slot type ball coupling B to sectional drawing, the B of Fig. 1 was to view when promptly star axle and star sleeve shaft axis were parallel to each other
Fig. 3 is that cross slot type ball coupling B was to sectional drawing when the axis knuckle was arranged, and the B of Fig. 1 was to view when promptly star axle shaft axis had the axis knuckle with respect to the star sleeve shaft axis.
Fig. 4 is that the C of Fig. 1 is to sectional drawing
Fig. 5 be midsplit type ball coupling A to sectional drawing, promptly the A of Fig. 6 is to view
Fig. 6 is that midsplit type ball coupling master cuts open figure
Fig. 7 be bayonet-type ball coupling A to sectional drawing, promptly the A of Fig. 8 is to view
Fig. 8 be bayonet-type ball coupling B to sectional drawing, promptly the B of Fig. 7 is to view
Embodiment
Shown in Fig. 1-4, the utility model includes star sleeve 1, ball 2, star axle 3, have curve bath on the star axle 3 and form external tooth form, have corresponding curve bath on the star sleeve 1 and form internal tooth form, the external tooth 31 of star axle 3 staggers mutually with the internal tooth 11 of star sleeve 1, difference is that star sleeve 1 internal tooth 11 both sides have the horizontal arcuate groove 4 with the star sleeve axis parallel, there is the vertical arcuate groove 5 vertical with star axle shaft axis star axle 3 external tooths 31 both sides, and ball 2 is included among horizontal arcuate groove 4 and the vertical arcuate groove 5.
Claims (1)
1, the cross slot type ball coupling that a kind of dynamic power machine transmission is used, include star sleeve (1), ball (2), star axle (3), have curve bath on the star axle (3) and form external tooth form, have corresponding curve bath on the star sleeve (1) and form internal tooth form, the external tooth (31) of star axle (3) staggers mutually with the internal tooth (11) of star sleeve (1), it is characterized in that there is the horizontal arcuate groove (4) with the star sleeve axis parallel star sleeve (1) internal tooth (11) both sides, there is the vertical arcuate groove (5) vertical with star axle shaft axis star axle (3) external tooth (31) both sides, and ball (2) is included among horizontal arcuate groove (4) and the vertical arcuate groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420068028 CN2739407Y (en) | 2004-06-22 | 2004-06-22 | Cross-groove type ball coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420068028 CN2739407Y (en) | 2004-06-22 | 2004-06-22 | Cross-groove type ball coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2739407Y true CN2739407Y (en) | 2005-11-09 |
Family
ID=35354473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420068028 Expired - Fee Related CN2739407Y (en) | 2004-06-22 | 2004-06-22 | Cross-groove type ball coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2739407Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101523070B (en) * | 2006-10-12 | 2015-07-08 | 株式会社捷太格特 | Boot for constant velocity joint and cross group-type constant velocity joint |
-
2004
- 2004-06-22 CN CN 200420068028 patent/CN2739407Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101523070B (en) * | 2006-10-12 | 2015-07-08 | 株式会社捷太格特 | Boot for constant velocity joint and cross group-type constant velocity joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051109 Termination date: 20130622 |