CN202991913U - Minitype constant velocity cardan joint - Google Patents
Minitype constant velocity cardan joint Download PDFInfo
- Publication number
- CN202991913U CN202991913U CN 201220731211 CN201220731211U CN202991913U CN 202991913 U CN202991913 U CN 202991913U CN 201220731211 CN201220731211 CN 201220731211 CN 201220731211 U CN201220731211 U CN 201220731211U CN 202991913 U CN202991913 U CN 202991913U
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- China
- Prior art keywords
- constant velocity
- retainer
- steel ball
- universal joint
- wheel
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- 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.)
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Abstract
The utility model discloses a minitype constant velocity cardan joint which comprises an external wheel, an internal wheel, a steel ball and a cage. The cage is arranged between the external wheel and the internal wheel, the inner wall of the external wheel is provided with an external raceway matched with the surface of the steel ball, the cage is provided with a mounting hole fit with the steel ball, the external wheel is connected with an input shaft through an internal spline, and the internal wheel is connected with an output shaft through another internal spline. The minitype constant velocity cardan joint is characterized in that the external surface of the internal wheel is provided with a ball socket matched with the surface of the steel ball, and the external wall of the internal wheel fits closely with the internal wall of the cage. The minitype constant velocity cardan joint has the advantages of compact structure, small space occupation and steady transmission torsion.
Description
Technical field
The utility model relates to a kind of for vehicle steering wheel or other mechanical steering equipment, the especially a kind of miniature constant velocity universal joint that can save installing space and energy smooth transfer moment of torsion.
Background technique
Existing constant velocity universal joint is mainly used in half shaft portion of automobile, and the axle that two axis are not overlapped couples together, and makes diaxon with identical angular velocity transmission campaign.Constant velocity universal joint is the vitals in car transmissions, and its effect is that the power with motor is delivered to the driving wheel of automobile from speed changer, satisfies the requirement of truck drive shaft outer end corner; The power of motor is passed to wheel steadily, reliably; Beating of the inner suspension of compensation automobile drives galloping.At present on automobile, constant velocity universal joint commonly used as shown in Figure 1, comprises foreign steamer 11, interiorly takes turns 12, retainer 13 and steel ball 14.Retainer 13 interior take turns 12 and foreign steamer 11 between, and retainer 13 is provided with the some mounting holes for steel ball 14 adaptive installations.Foreign steamer 11 inwalls are provided with outer raceway 111, the inwall that is somebody's turn to do outer raceway 111 is the cambered surface setting adaptive with steel ball 14, and foreign steamer 11 is connected with input shaft 8 with internal spline, interiorly take turns 12 and be connected with output shaft 9 with internal spline, the interior wheel between 12 outer surface and retainer 13 has arc groove, raceway 15 in forming.Steel ball 14 be contained in respectively in the mounting hole of retainer 13 and be positioned at by raceway 15, outer raceway 111 in the space that goes out, when universal joint rotates, the rolling rail of interior raceway 15 and outer raceway 111 formation steel balls 14.Existing constant velocity universal joint is the moving direction by the outer raceway 111 common stationary balls 14 of interior raceway 14, and by a nonconcentric cage 13, steel ball 14 is limited on same plane and moves, power is passed to through steel ball 14 by input shaft 8 interiorly take turns 12 by output shaft 9 outputs.Yet because existing constant velocity universal joint designs for truck drive shaft, requirement can be born larger moment of torsion, the wall thickness of therefore inside and outside raceway and the thickness of retainer are all thicker, so size is difficult to dwindle, and the existence of interior raceway also requires the wall thickness of interior raceway thick, otherwise raceway can't be processed; Therefore the external diameter minimum of above-mentioned rzeppa universal joint is all more than φ 60mm, so in the steering equipment of a lot of underloadings such as steering wheel etc., can't use constant velocity universal joint because installing space is limited, and there are again the jiggly shortcoming of transmitting torque in the Hooke's joint that uses in most of underloading steering equipment, three balls fork universal joints etc.
The model utility content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of compact structure, take up room little and transmitting torque miniature constant velocity universal joint stably.
To achieve these goals, the technical solution adopted in the utility model is: a kind of miniature constant velocity universal joint, comprise foreign steamer, interiorly take turns, steel ball and retainer, retainer interior take turns and foreign steamer between, the foreign steamer inwall is provided with the outer raceway that coordinates with the steel ball sphere, retainer is provided with the mounting hole adaptive with steel ball, foreign steamer is connected with input shaft by internal spline, the interior wheel by internal spline is connected with output shaft, it is characterized in that: described interior wheel outer surface is provided with the ball-and-socket adaptive with the steel ball sphere, described interior take turns outer wall and the applying of retainer inwall.
Above-mentioned setting replaces interior raceway of the prior art by ball-and-socket is set on interior outer surface of taking turns, interior take turns outer wall fit the inwall of this retainer saved nonconcentric cage and and interior the wheel between the space, greatly reduced the diameter of constant velocity universal joint, reduced its installing space, and this constant speed gimbal structure compact and reasonable, transmitting torque is steady.
As further setting of the present utility model, described retainer split arranges, retainer comprises two and half retainers, described two and half retainers are equipped with half fenestra 231 adaptive with the steel ball sphere, described two and half retainers are oppositely arranged and are fixedly connected with by rivet, the half corresponding mounting hole that arranges and jointly consist of the steel ball on retainer of fenestra 231 of described two and half retainers.
By with retainer split setting, coordinate through riveted joint by two and half retainers to combine in above-mentioned the setting, guarantee steel ball when constant velocity universal joint turns to, the energy stationary balls is in order to avoid it breaks away from inside and outside raceway.The split setting of this retainer has been saved and has been produced required material, has reduced difficulty of processing.
As further setting of the present utility model, be provided with at least two steel balls in each mounting hole on described retainer.
In above-mentioned the setting, on retainer, arranging when can improve the universal joint bearing capacity of Double-row ball taken into account size requirement, makes its transmitting torque more steady.
As further setting of the present utility model, described outer wheel outer surface is provided with dust-proof cover, and dust-proof cover is connected with the foreign steamer buckle.
In above-mentioned the setting, arranging of dust-proof cover can be played sealing, prevents the erosion of dust, extends its working life, can guarantee that constant velocity universal joint can not lose efficacy because of crooked, stretching when Bending Rotation simultaneously.
As further setting of the present utility model, be arranged with clip outside described dust-proof cover.
In above-mentioned the setting, the arranging of clip can be played dust-proof cover is fixed on effect on foreign steamer.
The utility model is changed the constant velocity universal joint internal structure as required, makes its operating mode that is applicable to underloading, low corner, plays the space that structure is compacter, the minimizing universal joint takies, the effect of smooth transfer moment of torsion; The present invention can accomplish according to space requirement, constant velocity universal joint can be reduced to external diameter φ 15mm to φ 60mm.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Accompanying drawing 1 is the utility model prior art structural representation;
Accompanying drawing 2 is the utility model specific embodiment one structural representation;
Accompanying drawing 3 is the structural representation of foreign steamer in the utility model accompanying drawing 2;
Accompanying drawing 4 is the side view of the utility model accompanying drawing 3 foreign steamers;
Accompanying drawing 5 is the structural representation of interior wheel in the utility model accompanying drawing 2;
Accompanying drawing 6 is the interior A-A sectional view of taking turns of the utility model accompanying drawing 5;
Accompanying drawing 7 is the structural representation of half retainer in the utility model accompanying drawing 2;
Accompanying drawing 8 is the B-B sectional view of the utility model accompanying drawing 7 half retainers;
Accompanying drawing 9 is for being equipped with the structural representation of two row steel balls on the utility model specific embodiment two retainers.
Embodiment
specific embodiment of the utility model one miniature constant velocity universal joint as shown in Figure 2, comprise foreign steamer 21, interiorly take turns 22, steel ball 24 and retainer 23, retainer 23 interior take turns 22 and foreign steamer 21 between, foreign steamer 21 inwalls are provided with the outer raceway 211 that coordinates with steel ball 24 spheres as shown in Figure 3-4, retainer 23 is provided with the mounting hole adaptive with steel ball 24, foreign steamer 11 is connected with input shaft 8 by internal spline, interiorly take turns 22 and be connected with output shaft 9 by internal spline, above-mentioned interior 22 outer surfaces of taking turns are provided with the adaptive ball-and-socket 221 of steel ball 24 spheres as shown in Fig. 5-6, above-mentioned interior take turns 22 outer walls and retainer 23 inwalls applyings.Interior the wheel on 22 outer surface, ball-and-socket 221 is set, replace interior raceway 12 of the prior art as shown in Figure 1, interior take turns 22 outer walls fit the inwall of this retainer 23 saved nonconcentric cage and and interior the wheel between arc groove, greatly reduced the diameter of constant velocity universal joint, reduced it required space has been installed, and this constant speed gimbal structure compact and reasonable, transmitting torque is steady.
As shown in Fig. 7-8, above-mentioned retainer 23 split settings, retainer 23 comprises two and half retainer 23a, two and half retainer 23a are equipped with half fenestra 231 adaptive with steel ball 24 spheres, two and half retainer 23a are oppositely arranged and are fixedly connected with by rivet, the half corresponding mounting hole that arranges and jointly consist of the steel ball 24 on retainer 23 of fenestra 231 of two and half retainers.With retainer 23 split settings, coordinate through riveted joint by two and half retainer 23a to combine, guarantee steel ball 24 when constant velocity universal joint turns to, the energy stationary balls is in order to avoid it breaks away from the rolling rail that is made of interior nest 221 and outer raceway 211.The split setting of this retainer 23 has been saved and has been produced required material, has reduced difficulty of processing.
As shown in Figure 2, above-mentioned foreign steamer 21 outer surfaces are provided with dust-proof cover 25, and dust-proof cover 25 is connected with foreign steamer 21 buckles.Arranging of dust-proof cover 25 can be played seal action, prevents the erosion of dust, extends its working life, can guarantee that constant velocity universal joint can not lose efficacy because of crooked, stretching when Bending Rotation simultaneously.Above-mentioned dust-proof cover 25 outsides are arranged with clip 26.The arranging of clip 26 can be played dust-proof cover 25 is fixed on effect on foreign steamer 21.
The present embodiment two is provided with two steel balls 24 as shown in Figure 9 at least in each mounting hole on above-mentioned retainer 23, other arrange with embodiment one.On this retainer 23, arranging when can improve the universal joint bearing capacity of Double-row ball 24 taken into account size requirement, makes its transmitting torque more steady.
The utility model is changed the constant velocity universal joint internal structure as required, makes its operating mode that is applicable to underloading, low corner, plays the space that structure is compacter, the minimizing universal joint takies, the effect of smooth transfer moment of torsion; The present invention can accomplish according to space requirement, constant velocity universal joint can be reduced to external diameter φ 15mm to φ 60mm.
Claims (7)
1. miniature constant velocity universal joint, comprise foreign steamer, interiorly take turns, steel ball and retainer, retainer interior take turns and foreign steamer between, the foreign steamer inwall is provided with the outer raceway that coordinates with the steel ball sphere, retainer is provided with the mounting hole adaptive with steel ball, and foreign steamer is connected with input shaft by internal spline, and interior the wheel by internal spline is connected with output shaft, it is characterized in that: described interior wheel outer surface is provided with the ball-and-socket adaptive with the steel ball sphere, described interior take turns outer wall and the applying of retainer inwall.
2. miniature constant velocity universal joint according to claim 1, it is characterized in that: described retainer split arranges, retainer comprises two and half retainers, described two and half retainers are equipped with half fenestra adaptive with the steel ball sphere, described two and half retainers are oppositely arranged and are fixedly connected with by rivet, the corresponding mounting hole that arranges and jointly consist of the steel ball on retainer of half fenestra of described two and half retainers.
3. miniature constant velocity universal joint according to claim 1 and 2, is characterized in that: be provided with at least two steel balls in each mounting hole on described retainer.
4. miniature constant velocity universal joint according to claim 1 and 2, it is characterized in that: described outer wheel outer surface is provided with dust-proof cover, and dust-proof cover is connected with the foreign steamer buckle.
5. miniature constant velocity universal joint according to claim 3, it is characterized in that: described outer wheel outer surface is provided with dust-proof cover, and dust-proof cover is connected with the foreign steamer buckle.
6. miniature constant velocity universal joint according to claim 4, is characterized in that: be arranged with clip outside described dust-proof cover.
7. miniature constant velocity universal joint according to claim 5, is characterized in that: be arranged with clip outside described dust-proof cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220731211 CN202991913U (en) | 2012-12-26 | 2012-12-26 | Minitype constant velocity cardan joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220731211 CN202991913U (en) | 2012-12-26 | 2012-12-26 | Minitype constant velocity cardan joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991913U true CN202991913U (en) | 2013-06-12 |
Family
ID=48563097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220731211 Expired - Fee Related CN202991913U (en) | 2012-12-26 | 2012-12-26 | Minitype constant velocity cardan joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991913U (en) |
-
2012
- 2012-12-26 CN CN 201220731211 patent/CN202991913U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325000 No. 16, Yong Jiang Road, Longwan economic and Technological Development Zone, Zhejiang, Wenzhou Patentee after: C&U Co.,Ltd. Address before: 325000 No. 16, Yong Jiang Road, Longwan economic and Technological Development Zone, Zhejiang, Wenzhou Patentee before: C & U Group Ltd. |
|
| 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: 20130612 Termination date: 20211226 |