CN204025409U - Improved constant-velocity transmission shaft - Google Patents
Improved constant-velocity transmission shaft Download PDFInfo
- Publication number
- CN204025409U CN204025409U CN201420427821.9U CN201420427821U CN204025409U CN 204025409 U CN204025409 U CN 204025409U CN 201420427821 U CN201420427821 U CN 201420427821U CN 204025409 U CN204025409 U CN 204025409U
- Authority
- CN
- China
- Prior art keywords
- spline
- internal spherical
- transmission shaft
- ball
- spherical cage
- 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.)
- Expired - Fee Related
Links
Landscapes
- Bearings For Parts Moving Linearly (AREA)
Abstract
The utility model discloses a kind of improved constant-velocity transmission shaft, it includes jack shaft, jack shaft two ends are respectively equipped with the first spline and the second spline, the first spline joint has external ball cage, the second spline joint has internal spherical cage, internal spherical cage slides sleeve vertically on the second spline, the second spline two ends are respectively equipped with boss and limiting stopper, boss forming is in jack shaft outer surface, limiting stopper is fixed on the second spline exterior edge face, described internal spherical cage includes star sleeve, annular outer race, ball and retainer, star sleeve outer surface all forms the corresponding groove in position with annular outer race inwall, and every two adjacent grooves are all " eight " font and distribute, described retainer window makes ball move but to limit ball generation axial displacement along circumferential direction.The length that the utility model makes full use of jack shaft under the prerequisite that guarantees bulk strength realizes maximum displacement amount, has improved internal spherical cage structure simultaneously, makes internal spherical cage when meeting big angle rotary, have axial displacement.
Description
technical field:
The utility model relates to vehicle transmission technical field of structures, relates in particular to a kind of improved constant-velocity transmission shaft.
background technique:
Constant-velocity transmission shaft is that the axle that two axis are not overlapped couples together, and makes diaxon with the mechanism of identical angular velocity transmission campaign, and its effect is that the power of motor is delivered to car-wheel from speed changer, meets the requirement of vehicular transmission shaft outer end corner.
The ball cage that existing constant-velocity transmission shaft generally includes jack shaft and is connected with jack shaft two ends, wheel is when turning to, jack shaft needs the axially movable corner that simultaneously also needs to take into account, the transmission shaft of Gu Chuantong normally one end is installed rotating ball cage, and the other end installation realizes axially movable ball cage, but the axial displacement of this structure and rotation angle are all very restricted, cannot meet the requirement of existing vehicle.
For this problem, those skilled in the art constantly improve and test, for example the patent No. is 200910302014.8 to have the constant-velocity transmission shaft of scalable jack shaft, on jack shaft, increased mobile vertically function, at two ends, all connect the ball cage that can realize large rotation angle, although this structure can be taken into account large axial displacement and large rotation angle simultaneously, but jack shaft is to be subject to for a long time large torsion, in intensity, be subject to so very large impact, the vehicle that is applicable to using has been had to certain limitation.
For example the patent No. is 201320382610.3 1 kinds of constant velocity driving shafts again, spline by ball cage sleeve on jack shaft slides, realize in displacement amount space very limited and that need to increase mobile terminal ball cage outer race, increase cost, also affect intensity, in addition, existing spline two ends do not increase limit structure or place jump ring and carry out spacingly by process circular groove on spline, and the spline length that is positioned at jump ring outer side surface cannot be utilized.
model utility content:
The purpose of this utility model is exactly in order to solve existing issue, and provide a kind of improved constant-velocity transmission shaft, the length that can make full use of jack shaft under the prerequisite that guarantees bulk strength realizes maximum displacement amount, improved internal spherical cage structure simultaneously, made internal spherical cage when meeting big angle rotary, there is axial displacement.
Technology solution of the present utility model is as follows:
Improved constant-velocity transmission shaft, it includes jack shaft, described jack shaft two ends are respectively equipped with the first spline and the second spline, described the first spline joint has external ball cage, and described the second spline joint has internal spherical cage, and described internal spherical cage slides sleeve vertically on the second spline, described the second spline two ends are respectively equipped with boss and limiting stopper, described boss forming is in jack shaft outer surface, and described limiting stopper is fixed on the second spline exterior edge face, and boss and limiting stopper prevent that internal spherical cage from departing from the second spline when sliding.
As preferably, described limiting stopper boundary dimension is greater than the second spline boundary dimension and the second spline exterior edge face is close in limiting stopper side.
As preferably, described internal spherical cage includes the star sleeve matching with the second spline, annular outer race, ball and retainer.
As preferably, described star sleeve outer surface all forms the corresponding groove in position with annular outer race inwall, on same outer surface or same inwall, every two adjacent grooves are all the distribution of " eight " font, and the corner dimension of every two adjacent trenches axis projection lines equates, opposite direction, and corner dimension is 20 ~ 40 °.
As preferably, described retainer is for annular and offer the window matching with steel ball, described each window is more than or equal to every groove along the length B of circumferential direction along the length A of retainer outer periphery circumferential direction, and window makes ball move but to limit ball generation axial displacement along circumferential direction.
As preferably, described star sleeve center diameter is gradual shrinkage to the diameter at its two ends, and star sleeve can radially rotate.
As preferably, described the second spline length L is vertically the star sleeve axial thickness M of 1.5 ~ 2 times.
The beneficial effects of the utility model are:
1, the utility model is realized axial slip by internal spherical cage sleeve on second spline of jack shaft one end, and two ends have increased limit structure, and the second spline exterior edge face is limiting stopper fixedly, and whole the second flower key length can be fully used;
2, the utility model has improved internal spherical cage structure, adopt annular outer race, " eight " font groove, simultaneously retainer window makes ball move but to limit ball generation axial displacement along circumferential direction, internal spherical cage is reached and when meeting large rotation angle, have axial displacement;
3, the utility model structure realize internal spherical cage along in the second spline slippage in conjunction with improved internal spherical cage, greatly reduced the axial length of jack shaft the second spline, save cost of material.
accompanying drawing explanation:
Fig. 1 is the utility model perspective view;
Fig. 2 is the decomposing schematic representation of the utility model internal spherical cage end;
Fig. 3 is the utility model the second splined end structural representation;
Fig. 4 is the utility model star sleeve structural representation;
Fig. 5 is the generalized section of the utility model retainer.
In figure: 1, jack shaft; 2, external ball cage; 3, internal spherical cage; 4, limiting stopper; 11, the second spline; 12, boss; 31, star sleeve; 32, annular outer race; 33, ball; 34, retainer; 35, groove; 341, window; The second spline length L; Star sleeve axial thickness M; Window circumferential direction length A; Groove circumferential direction length B.
embodiment:
As shown in Figure 1, improved constant-velocity transmission shaft, it includes jack shaft 1, described jack shaft 1 two ends are respectively equipped with the first spline and the second spline 11, described the first spline joint has external ball cage 2, described the second spline 11 is connected with internal spherical cage 3, described internal spherical cage 3 slides sleeve vertically on the second spline 11, described the second spline 11 two ends are respectively equipped with boss 12 and limiting stopper 4, described boss 12 takes shape in jack shaft 1 outer surface, described limiting stopper 4 is fixed on the second spline 11 exterior edge faces, and boss 12 affects transmission with limiting stopper 4 for preventing internal spherical cage from departing from spline.
Particularly, described limiting stopper 4 boundary dimension are greater than the second spline 11 boundary dimension and the second spline 11 exterior edge faces are close in limiting stopper 4 sides, it can be welding that limiting stopper 4 is fixedly connected with the second spline 11 exterior edge faces, also can be for being spirally connected or other are fixedly connected with mode, and limiting stopper 4 profiles can be polygonal, circular as most preferably, the thickness of limiting stopper 4 is greater than 4mm, and the too thin meeting of thickness causes intensity low and affect position-limiting action.
Particularly, described internal spherical cage 3 includes star sleeve 31, annular outer race 32, ball 33 and the retainer 34 matching with the second spline 11.
Particularly, described star sleeve 31 outer surfaces all form the corresponding groove in position 35 with annular outer race 32 inwalls, on same outer surface or same inwall, every two adjacent grooves 35 are all the distribution of " eight " font, and the corner dimension of every two adjacent trenches 35 axis projection lines equates, opposite direction, and corner dimension is 20 ~ 40 °.
Particularly, described retainer 34 is for annular and offer the window 341 matching with ball 33, described each window 341 is more than or equal to every groove 35 along the length B of circumferential direction along the length A of retainer 34 outer periphery circumferential direction, and window 341 makes ball 33 move but to limit ball generation axial displacement along circumferential direction.
Particularly, described star sleeve 31 center diameters are gradual shrinkage to the diameter at its two ends, and star sleeve 31 is positioned at annular outer race 32 can radial rotating.
Particularly, described the second spline 11 length L is vertically the star sleeve 31 axial thickness M of 1.5 ~ 2 times.
Working principle of the present utility model is: the annular outer race of internal spherical cage is connected with drive unit, and annular outer race drives star sleeve to rotate while rotating, thereby drives to external ball cage by jack shaft, realizes wheel and drives.
In the course of the work, when needing realization to turn to, also need to meet and there is axial telescopic displacement, the utility model is realized axial stretching displacement by internal spherical cage sleeve on second spline of jack shaft one end, and the boss that the second spline two ends arrange and limiting stopper guarantee that internal spherical cage does not depart from the second spline and affects transmission, in addition, improved internal spherical cage structure, adopt annular outer race, " eight " font groove, retainer window makes ball move but to limit ball generation axial displacement along circumferential direction simultaneously, as shown in the figure, groove all tilts, therefore the rolling route of ball is also for tilting, the route tilting can resolve into axial displacement and circumferentially displacement, therefore meeting ball, retainer window there is the displacement amount rolling along circumferentially, annular outer race can have the displacement amount of axial direction, thereby compare traditional jack shaft, when mobile terminal spline length is identical, axial displacement effectively improves, save cost of material, and do not affect bulk strength.
The foregoing is only preferred embodiment of the present utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all should belong to the scope of the utility model protection.
Claims (7)
1. improved constant-velocity transmission shaft, it includes jack shaft (1), described jack shaft (1) two ends are respectively equipped with the first spline and the second spline (11), described the first spline joint has external ball cage (2), described the second spline (11) is connected with internal spherical cage (3), it is characterized in that: described internal spherical cage (3) slides sleeve vertically on the second spline (11), described the second spline (11) two ends are respectively equipped with boss (12) and limiting stopper (4), described boss (12) takes shape in jack shaft (1) outer surface, described limiting stopper (4) is fixed on the second spline (11) exterior edge face.
2. improved constant-velocity transmission shaft according to claim 1, is characterized in that: described limiting stopper (4) boundary dimension is greater than the second spline (11) boundary dimension and the second spline (11) exterior edge face is close in limiting stopper (4) side.
3. improved constant-velocity transmission shaft according to claim 1, is characterized in that: described internal spherical cage (3) includes the star sleeve (31) matching with the second spline (11), annular outer race (32), ball (33) and retainer (34).
4. improved constant-velocity transmission shaft according to claim 3, it is characterized in that: described star sleeve (31) outer surface all forms the corresponding groove in position (35) with annular outer race (32) inwall, on same outer surface or same inwall, every two adjacent grooves (35) are all the distribution of " eight " font, and the corner dimension of every two adjacent trenches (35) axis projection line equates, opposite direction, and corner dimension is 20 ~ 40 °.
5. according to improved constant-velocity transmission shaft described in claim 3 or 4, it is characterized in that: described retainer (34) is for annular and offer the window (341) matching with ball (33), and described each window (341) is more than or equal to every groove (35) along the length B of circumferential direction along the length A of retainer (34) outer periphery circumferential direction.
6. improved constant-velocity transmission shaft according to claim 3, is characterized in that: described star sleeve (31) center diameter to the diameter at its two ends is gradual shrinkage.
7. according to improved constant-velocity transmission shaft described in claim 1 or 3, it is characterized in that: described the second spline (11) length L is vertically star sleeve (31) the axial thickness M of 1.5 ~ 2 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420427821.9U CN204025409U (en) | 2014-07-31 | 2014-07-31 | Improved constant-velocity transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420427821.9U CN204025409U (en) | 2014-07-31 | 2014-07-31 | Improved constant-velocity transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025409U true CN204025409U (en) | 2014-12-17 |
Family
ID=52065278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420427821.9U Expired - Fee Related CN204025409U (en) | 2014-07-31 | 2014-07-31 | Improved constant-velocity transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204025409U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154135A (en) * | 2014-07-31 | 2014-11-19 | 浙江凯迪汽车部件工业有限公司 | Improved constant-speed transmission shaft |
-
2014
- 2014-07-31 CN CN201420427821.9U patent/CN204025409U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154135A (en) * | 2014-07-31 | 2014-11-19 | 浙江凯迪汽车部件工业有限公司 | Improved constant-speed transmission shaft |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203717640U (en) | Low-noise needle bearing for automobile steering knuckle | |
| CN204025409U (en) | Improved constant-velocity transmission shaft | |
| CN103234015B (en) | The mechanical movement structure of stepless speed variator | |
| CN104154135A (en) | Improved constant-speed transmission shaft | |
| CN103016646B (en) | Transmission Five block transmission is handed at the angle of middle bus | |
| CN105179499A (en) | Eight-steel-ball rzeppa constant velocity joint | |
| CN202986677U (en) | Semi-axis sliding driving shaft assembly with fixed dust-proof sleeves | |
| CN203348363U (en) | Motor steering shaft medium joint transmission shaft with novel positioning structure | |
| CN211398335U (en) | Eight steel ball rzeppa constant velocity joints of wide-angle high efficiency | |
| CN107120356A (en) | Double rollers three pin-type moves universal joint | |
| CN204371970U (en) | A kind of constant velocity driveshaft ball cage | |
| CN202746430U (en) | Spherical cage universal joint | |
| CN102661358A (en) | Bevel gear type universal transmission node | |
| CN204677629U (en) | Portable ball-cage constant velocity universal joint | |
| CN205047683U (en) | Eight steel ball rzeppa universal joint | |
| CN206555310U (en) | A kind of high antitorque big swing angle universal joint assembly of lightweight corner connection touch | |
| CN204371971U (en) | A kind of constant velocity driving shaft internal spherical cage | |
| CN202266609U (en) | Spherical cage type synchronous universal coupler with middle support | |
| CN206397956U (en) | Shaft coupling | |
| CN206458732U (en) | A kind of wide-angle Rzeppa constant velocity joint | |
| CN212455254U (en) | Synchronous universal coupling of ball cage | |
| CN205823897U (en) | A kind of sleeve used for vehicle transmission shaft | |
| CN203560322U (en) | Three-fork double-side steel ball type universal coupling with constant angular velocity | |
| CN202901105U (en) | One-way clutch and excavator applying same | |
| CN202560865U (en) | Novel variable high-efficiency and large swing angle constant-speed driving shaft assembly |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20180731 |