CN203322085U - Constant-speed drive shaft - Google Patents
Constant-speed drive shaft Download PDFInfo
- Publication number
- CN203322085U CN203322085U CN2013203826103U CN201320382610U CN203322085U CN 203322085 U CN203322085 U CN 203322085U CN 2013203826103 U CN2013203826103 U CN 2013203826103U CN 201320382610 U CN201320382610 U CN 201320382610U CN 203322085 U CN203322085 U CN 203322085U
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- cage
- spherical cage
- fixed end
- mobile terminal
- internal spherical
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Abstract
The utility model discloses a constant-speed drive shaft. The constant-speed drive shaft comprises a spherical cage at a fixed end, a middle shaft and a spherical cage at a movable end, wherein the two ends of the middle shaft are respectively connected with an internal spherical cage of the spherical cage at the fixed end and an internal spherical cage of the spherical cage at the movable end; an external spherical cage at the movable end is connected with a gearbox; an external spherical cage at the fixed end is connected with wheels; a spherical rotary structure and a corresponding lane structure are arranged between the internal spherical cage and the external spherical cage at the fixed end; the middle shaft is provided with a spline for connecting on the surface at one end of the internal spherical cage at the fixed end; a corresponding cup-joint spline is arranged on the internal spherical cage at the movable end; the length of the spline of the middle shaft is bigger than that of the spline of the internal spherical cage at the movable end; an axial movement space for containing the middle shaft is further arranged on the internal spherical cage at the movable end; a matching structure between the internal spherical cage and the external spherical cage at the movable end adopts a structure which is the same as that of the spherical cage at the fixed end; when the wheels which are connected with the fixed end steer, the middle shaft is moved towards the wheel direction under the restriction of the spline at the movable end; when the wheel steering angle is smaller, the middle shaft reversely moves, so that the constant-speed drive shaft is adapted to the requirements of a vehicle with a larger steering angle.
Description
Technical field
The utility model relates to a kind of for motor vehicle transmission shaft, particularly a kind of constant velocity driving shaft.
Background technique
Constant velocity driving shaft is that the axle that two axis are not overlapped couples together, and makes the mechanism of diaxon with 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.
Existing constant velocity driving shaft comprises fixed end ball cage, jack shaft, mobile terminal ball cage, the jack shaft two ends are connected with the internal spherical cage of mobile terminal ball cage with the internal spherical cage of fixed end ball cage respectively, the mobile terminal external ball cage is connected with gearbox, and the fixed end external ball cage is connected with wheel; Be spherical rotational structure between the inside and outside ball cage of fixed end, do not have relative moving axially, set alley is complementary therewith.
The shortcoming of prior art is: wheel jack shaft when turning to need to move axially, in mobile terminal, arrange between external ball cage and move axially the ball alley be complementary, configuration ball in alley, the internal spherical cage of mobile terminal is to be fixedly connected with being connected of jack shaft, by ball, the coupling of the rolling in alley moves axially jack shaft, because the size of the ball alley of mobile terminal ball cage is limited, need to take into account corner simultaneously and move axially, make the corner of jack shaft be restricted, if it is long that the ball alley configures for moving axially, although can meet the movement requirement of jack shaft, but the while is the larger angle range limited between jack shaft and mobile terminal ball cage also, therefore the steering angle of jack shaft also is constrained in the angle range of a less, the vehicle that can not be required larger corner uses.
The model utility content
The utility model is in order to overcome defect in above-mentioned prior art, between jack shaft and fixed end internal spherical cage by can mutual axially movable spline joint, and the space that moves axially that holds jack shaft in the internal spherical cage setting of fixed end ball cage, make constant velocity driving shaft adapt to the demand of larger corner vehicle.
For achieving the above object, the utility model provides a kind of constant velocity driving shaft, comprise fixed end ball cage, jack shaft, mobile terminal ball cage, the jack shaft two ends are connected with the internal spherical cage of mobile terminal ball cage with the internal spherical cage of fixed end ball cage respectively, the mobile terminal external ball cage is connected with gearbox, and the fixed end external ball cage is connected with wheel; Be spherical rotational structure and corresponding alley structure between the inside and outside ball cage of fixed end, do not have and mutually move axially; Wherein, jack shaft is provided with the spline that connects use on the surface of internal spherical cage one end, the mobile terminal internal spherical cage is provided with the spline of corresponding socket use, the spline length of jack shaft is longer than the length of mobile terminal internal spherical cage spline, the mobile terminal internal spherical cage also is provided with the space that moves axially that holds jack shaft, when the wheel connected at fixed end turns to, jack shaft moves to the wheel direction under the constraint of mobile terminal spline, and when wheel steering angle diminishes, jack shaft oppositely moves.
In technique scheme, matching structure between the inside and outside ball cage of mobile terminal adopts spherical rotation structure and the corresponding alley structure identical with fixed end ball cage, change the alley structure moved for jack shaft between the inside and outside ball cage in mobile terminal in the prior art, there is larger rotation subtended angle.
Compared with prior art, the utility model is by can mutual axially movable spline joint between jack shaft and fixed end internal spherical cage, the space that moves axially that holds jack shaft in the internal spherical cage setting of fixed end ball cage, in addition, adopt the structure identical with fixed end ball cage at mobile terminal ball cage, make constant velocity driving shaft adapt to the demand of larger corner vehicle.
The accompanying drawing explanation
Fig. 1 is the stereogram after the assembling of the utility model constant velocity driving shaft;
Fig. 2 is the exploded perspective view of the utility model constant velocity driving shaft;
Fig. 3 is the stereogram (dust-proof cover decomposition) of the utility model constant velocity driving shaft.
Mark the following drawings mark thereon by reference to the accompanying drawings:
1-fixed end ball cage, 11-external ball cage, 2-jack shaft, 21-spline, 3-mobile terminal ball cage, 31-external ball cage, 32-internal spherical cage, 321-spline, 4-dust-proof cover, 5-mobile terminal dust-proof cover.
Embodiment
Below in conjunction with accompanying drawing, an embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subject to the restriction of embodiment.
Constant velocity driving shaft of the present utility model as shown in Figure 1,3, comprise fixed end ball cage 1, jack shaft 2, mobile terminal ball cage 3, jack shaft 2 two ends are connected with the internal spherical cage 32 of mobile terminal ball cage with the internal spherical cage (not shown) of fixed end ball cage respectively, mobile terminal external ball cage 31 is connected with gearbox, and fixed end external ball cage 11 is connected with wheel; Be socketed with dust-proof cover 4 between jack shaft 2 and fixed end ball cage 1, between jack shaft 2 and mobile terminal ball cage 3, be socketed with dust-proof cover 5, guarantee the cleaning of connection space between jack shaft 2 and fixed end ball cage 1, mobile terminal ball cage 3.
Further as shown in Figure 2,3, jack shaft 2 is provided with the spline 21 that connects use on the surface of internal spherical cage one end, mobile terminal internal spherical cage 32 is provided with the spline 321 of corresponding socket use, spline 21 length of jack shaft are longer than the length of mobile terminal internal spherical cage spline 321, the mobile terminal internal spherical cage also is provided with the space that moves axially that holds jack shaft 2, when the wheel connected at fixed end turns to, jack shaft moves to the wheel direction under the constraint of mobile terminal internal spherical cage spline 321, and when wheel steering angle diminishes, jack shaft oppositely moves.
Further as shown in Figure 2,3, the internal spherical cage 32 of mobile terminal and the matching structure between external ball cage 31 adopt the spherical rotation structure identical with fixed end ball cage and corresponding alley structure, change the alley structure moved for jack shaft between the inside and outside ball cage in mobile terminal, there is larger rotation subtended angle.
Compared with prior art, the utility model is by can mutual axially movable spline joint between jack shaft and fixed end internal spherical cage, the space that moves axially that holds jack shaft in the internal spherical cage setting of fixed end ball cage, in addition, adopt the structure identical with fixed end ball cage at mobile terminal ball cage, make constant velocity driving shaft adapt to the demand of larger corner vehicle.
Above disclosed be only a specific embodiment of the present utility model, still, the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (2)
1. a constant velocity driving shaft, comprise fixed end ball cage, jack shaft, mobile terminal ball cage, the jack shaft two ends are connected with the internal spherical cage of mobile terminal ball cage with the internal spherical cage of fixed end ball cage respectively, the mobile terminal external ball cage is connected with gearbox, the fixed end external ball cage is connected with wheel, in fixed end, it between external ball cage, is spherical rotational structure configure corresponding alley structure, it is characterized in that, jack shaft is provided with the spline that connects use on the surface of internal spherical cage one end, the mobile terminal internal spherical cage is provided with the spline of corresponding socket use, the spline length of jack shaft is longer than the length of mobile terminal internal spherical cage spline, the mobile terminal internal spherical cage also is provided with the space that moves axially that holds jack shaft.
2. constant velocity driving shaft according to claim 1, is characterized in that, between the inside and outside ball cage of described mobile terminal, is spherical rotation structure and corresponding alley structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203826103U CN203322085U (en) | 2013-06-19 | 2013-06-19 | Constant-speed drive shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203826103U CN203322085U (en) | 2013-06-19 | 2013-06-19 | Constant-speed drive shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322085U true CN203322085U (en) | 2013-12-04 |
Family
ID=49661440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203826103U Expired - Fee Related CN203322085U (en) | 2013-06-19 | 2013-06-19 | Constant-speed drive shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203322085U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113799834A (en) * | 2021-09-29 | 2021-12-17 | 吉林大学 | Driving belt wheel mechanism for RE type axle railway passenger car belt transmission shaft drive power supply system |
-
2013
- 2013-06-19 CN CN2013203826103U patent/CN203322085U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113799834A (en) * | 2021-09-29 | 2021-12-17 | 吉林大学 | Driving belt wheel mechanism for RE type axle railway passenger car belt transmission shaft drive power supply system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20200619 |