CN105782261A - Three-pin shaft fork - Google Patents
Three-pin shaft fork Download PDFInfo
- Publication number
- CN105782261A CN105782261A CN201610256869.1A CN201610256869A CN105782261A CN 105782261 A CN105782261 A CN 105782261A CN 201610256869 A CN201610256869 A CN 201610256869A CN 105782261 A CN105782261 A CN 105782261A
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- CN
- China
- Prior art keywords
- pin shaft
- transition portion
- face
- transition
- sidewall
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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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention relates to a three-pin shaft for. The shortcomings that in the prior art, a three-pin shaft fork is unreasonable in structure, consequently, the three-pin shaft fork and three pin joints are difficult to assemble, and the production efficiency of the three-pin shaft fork is low are solved. According to the three-pin shaft fork, a first transition portion, a second transition portion and a third transition portion are sequentially formed between the side wall and the front end wall; the side wall and the front end face are in smooth in transition, and when the three-pin shaft fork and the three pin joints are assembled, the first transition portion, the second transition portion and the third transition portion play a role in guiding the three pin joints; and the three-pin shaft fork and the three pin joints are conveniently assembled. In the machining process of the three-pin shaft fork, the first transition portion, the second transition portion and the third transition portion enable the front end face and the side wall to be in smooth transition, the phenomenon that in the machining process of the three-pin shaft fork, burrs are generated is effectively avoided, the machining performance of the three-pin shaft fork is optimized, and the production efficiency of the three-pin shaft fork is improved.
Description
Technical field
The present invention relates to power transmission shaft accessory, particularly relate to a kind of three pin shaft forks.
Background technology
Power transmission shaft is mainly used in transmission power.At automotive field, power transmission shaft needs to compensate the angle between two line shafts, for this, the power transmission shaft being applied on automobile generally comprises constant velocity cardan joint, so that power transmission shaft can compensate the angle between two line shafts, constant velocity cardan joint includes yoke, joint, and yoke and joint cooperatively form constant velocity cardan joint.
For three pin shaft forks, namely three pin shaft forks have the yoke structure of three alleys, the alley of three pin shaft forks forms the inner chamber of three pin shaft forks, three pin shaft fork simple in construction of the prior art, without crossing transition structure between inner chamber and end face, cause three pin shaft forks and three pin joint assembling difficulties, and, three pin shaft forks inner chamber and end face transition position in the course of processing easily produce burr, reduce the working (machining) efficiency of three pin shaft forks.
Summary of the invention
A kind of three pin shaft forks provided by the invention, it is intended to overcome three pin shaft fork unreasonable structure in prior art, cause three pin shaft forks and three deficiencies that pin joint assembling is difficult, three pin shaft fork production efficiencys are low.
nullIn order to solve above-mentioned technical problem，The present invention adopts the following technical scheme that a kind of three pin shaft forks，Including body，Described internal offering saves, with three pins, the cavity coordinated，Described body includes the front end face being perpendicular to cavity axis，In the recessed front end face of described cavity，Described cavity includes the sidewall being parallel to cavity axis，First Transition portion is offered successively between described sidewall and front end face、Second transition part、3rd transition part，In the recessed sidewall in described First Transition portion，And the degree of depth of the recessed sidewall in First Transition portion is deepened to the second transition part direction gradually by the junction in First Transition portion Yu sidewall，Described second transition part extends along First Transition portion end face forward，The degree of depth of the described second recessed sidewall of transition part is equal to the First Transition portion innermost degree of depth of recessed sidewall，Described 3rd transition part is the fillet being opened between the second transition part and front end face.
In technique scheme, First Transition portion, the second transition part, the 3rd transition part is offered successively between sidewall and front end face, three pin shaft forks and three pin joints are in assembling process, First Transition portion, the second transition part, the 3rd transition part play the effect to three pin joint guiding, it is simple to three pin shaft forks and three pin joint assemblings；Three pin shaft forks are in the course of processing, and First Transition portion, the second transition part, the 3rd transition part can avoid sidewall to produce burr with front end face junction, and three pin shaft forks are easy to process, improve the working (machining) efficiency of three pin shaft forks.
A kind of optional scheme, carries out cutting with being parallel to the cutting plane of the body axis axis along body to body, and the bus in the part formation First Transition portion that cutting plane contact with First Transition portion, the angle of described bus and body axis is 5 degree to 30 degree.Second transition part, by First Transition portion and smooth-sided transition, optimizes the serviceability of three pin shaft forks；When the angle of bus and body axis is less than 5 degree, three pin joints are difficult with three pin shaft forks assemblings；When the angle of bus and body axis is more than 30 degree, the second transition part is smooth not with the transition of sidewall, and three pin shaft forks and three pin joint assemblings are still very difficult.
A kind of optional scheme, described body includes outer wall, and the radius of described 3rd transition part is 1/3 to the 1/2 of the outer wall spacing with sidewall.The radius of the 3rd transition part is determined according to the spacing of outer wall Yu sidewall, and the 3rd transition part is rational in infrastructure, it is simple to the assembling of three pin shaft forks and three pin joints, optimizes the assembly performance of three pin shaft forks.
A kind of optional scheme, described First Transition portion is 3 centimetres to 5 centimetres away from the distance of one end distance front end face of front end face.Conservative control First Transition portion, the second transition part, the 3rd transition part total length, optimize the serviceability of three pin shaft forks.
A kind of optional scheme, on described outer wall, integral type is fixed with rib, described rib away from one end of front end face to the distance of front end face equal to First Transition portion away from one end of front end face to the distance of front end face, described rib surrounds on the outer wall, and the thickness of described rib is equal to the First Transition portion innermost degree of depth of recessed sidewall.Rib improves the intensity of three pin shaft forks, extends the service life of three pin shaft forks.
Compared with prior art, a kind of three pin shaft forks provided by the invention, have the advantage that the First Transition portion that offers successively between sidewall and front end face, the second transition part, the 3rd transition part, sidewall and front end face transitions smooth, when three pin shaft forks and three pin joint assemblings, First Transition portion, the second transition part, the 3rd transition part play the effect that three pin joints are led, three pin shaft forks and three pins and save easy to assembly；Three pin shaft forks are in the course of processing, First Transition portion, the second transition part, the 3rd transition part make front end face and smooth-sided transition, efficiently avoid three pin shaft forks in the course of processing, produce burr, optimize the processing characteristics of three pin shaft forks, improve the production efficiency of three pin shaft forks.
Accompanying drawing explanation
Accompanying drawing 1 is the front view of a kind of three pin shaft forks of the present invention；
Accompanying drawing 2 is the top view of a kind of three pin shaft forks of the present invention；
Accompanying drawing 3 is D place enlarged drawing in accompanying drawing 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, one three pin shaft fork of the present invention is described further.As shown in Figure 1, Figure 2, Figure 3 shows, a kind of three pin shaft forks, including body 1, offering the cavity 2 coordinated with three pin joints in described body 1, described body 1 includes the front end face 3 being perpendicular to cavity 2 axis, in the recessed front end face 3 of described cavity 2, described cavity 2 includes the sidewall 4 being parallel to cavity 2 axis, described body 1 includes outer wall 8, and the distance between outer wall 8 and sidewall 4 is the wall thickness of three pin shaft forks, and this wall thickness is generally no greater than 5 centimetres；Three pin shaft forks and three pin joints cooperatively form constant velocity cardan joint, and three pin shaft forks, three pin joints are connected with the engine output shaft of automobile, driving axle respectively；
nullReferring to Fig. 1、Fig. 2、Fig. 3，First Transition portion 5 is offered successively between described sidewall 4 and front end face 3、Second transition part 6、3rd transition part 7，Described First Transition portion 5 is 3 centimetres to 5 centimetres away from the distance of one end distance front end face 3 of front end face 3，First Transition portion 5 is preferably 5 centimetres away from the distance of one end distance front end face 3 of front end face 3，First Transition portion 5、Second transition part 6、The concrete length of the 3rd transition part 7 does not limit，The length a that can arrange First Transition portion 5 when being embodied as is the longest、The length c of the 3rd transition part 7 is the shortest，The length b of the second transition part 6 is between First Transition portion 5 and the 3rd transition part 7，First Transition portion 5、Second transition part 6、The length of the 3rd transition part 7 is First Transition portion 5、Second transition part 6、The length of projection obtained after the 3rd transition part 7 projection；
Referring to Fig. 1, Fig. 2, Fig. 3, in the recessed sidewall 4 in described First Transition portion 5, and the degree of depth of the recessed sidewall 4 in First Transition portion 5 is deepened to the second transition part 6 direction gradually by the junction in First Transition portion 5 with sidewall 4, specifically, with being parallel to the cutting plane of the body 1 axis axis along body 1, body 1 is carried out cutting, the part that cutting plane contacts with First Transition portion 5 forms the bus in First Transition portion 5, cutting plane contacts formation both threads with First Transition portion 5, this bus refers to one therein, the angle f of described bus and body 1 axis is 5 degree to 30 degree, the angle of bus and body 1 axis is preferably 10, namely bus obtains First Transition portion 5 after the axis of body 1 rotates, First Transition portion 5 is shaped as bell mouth shape；
Referring to Fig. 1, Fig. 2, Fig. 3, described second transition part 6 along First Transition portion 5 forward end face 3 extend, the degree of depth of the described second recessed sidewall of transition part 64 be equal to the innermost degree of depth of the recessed sidewall in First Transition portion 54, namely the second transition part 6 be shaped as cylindric；
Referring to Fig. 1, Fig. 2, Fig. 3, described 3rd transition part 7 is the fillet being opened between the second transition part 6 and front end face 3, the radius of described 3rd transition part 7 is 1/3 to the 1/2 of the outer wall 8 spacing with sidewall 4, that is the radius of the 3rd transition part 7 is 1/3 to the 1/2 of three pin shaft fork wall thickness, and the radius of the 3rd transition part 7 can be set to when being embodied as the 1/2 of three pin shaft fork wall thickness.
In technique scheme, the setting of First Transition portion the 5, second transition part the 6, the 3rd transition part 7 optimizes the assembly performance of three pin shaft forks so that three pin shaft forks and three pin joint assemblings are convenient；It addition, the setting of First Transition portion the 5, second transition part the 6, the 3rd transition part 7 makes three pin shaft forks will not produce burr in the course of processing, improve the working (machining) efficiency of three pin shaft forks.
Referring to Fig. 1, Fig. 2, Fig. 3, First Transition portion 5 in technique scheme, second transition part 6, the setting of the 3rd transition part 7 reduces the wall thickness of three pin shaft forks, in use may have influence on the intensity of three pin shaft forks, in order to make three pin shaft forks have enough intensity, on described outer wall 8, integral type is fixed with rib 9, described rib 9 away from one end of front end face 3 to the distance of front end face 3 equal to First Transition portion 5 away from one end of front end face 3 to the distance of front end face 3, described rib 9 is looped around on outer wall 8, and the thickness of described rib 9 is equal to the innermost degree of depth of the recessed sidewall in First Transition portion 54.
These are only the preferred embodiment of the present invention, it is intended to embody prominent technique effect and the advantage of the present invention, be not the restriction to technical scheme.Those skilled in the art will appreciate that all are based on the made amendment of the technology of the present invention content, change or substitute technology feature, all should be covered by the technology category that claims of the present invention are advocated.
Claims (5)
- null1. a pin shaft fork，Including body (1)，The cavity (2) coordinated with three pin joints is offered in described body (1)，Described body (1) includes the front end face (3) being perpendicular to cavity (2) axis，In described cavity (2) recessed front end face (3)，It is characterized in that: described cavity (2) includes being parallel to the sidewall (4) of cavity (2) axis，First Transition portion (5) is offered successively between described sidewall (4) and front end face (3)、Second transition part (6)、3rd transition part (7)，In the recessed sidewall of described First Transition portion (5) (4)，And the degree of depth of First Transition portion (5) recessed sidewall (4) is deepened to the second transition part (6) direction gradually by the junction of First Transition portion (5) Yu sidewall (4)，Described second transition part (6) extends along First Transition portion (5) end face forward (3)，The degree of depth of the recessed sidewall of described second transition part (6) (4) is equal to First Transition portion (5) recessed sidewall (4) the innermost degree of depth，Described 3rd transition part (7) is the fillet being opened between the second transition part (6) and front end face (3).
- 2. a kind of three pin shaft forks according to claim 1, it is characterized in that: use the cutting plane being parallel to body (1) axis, along the axis of body (1), body (1) is carried out cutting, it is 5 degree to 30 degree that the part that cutting plane contacts with First Transition portion (5) forms the angle of the bus in First Transition portion (5), described bus and body (1) axis.
- 3. a kind of three pin shaft forks according to claim 1, it is characterized in that: described body (1) includes outer wall (8), the radius of described 3rd transition part (7) is 1/3 to the 1/2 of the outer wall (8) spacing with sidewall (4).
- 4. one three pin shaft fork according to claims 1 to 3 any one, it is characterised in that: described First Transition portion (5) is 3 centimetres to 5 centimetres away from the distance of one end distance front end face (3) of front end face (3).
- 5. a kind of three pin shaft forks according to claim 3, it is characterized in that: the upper integral type of described outer wall (8) is fixed with rib (9), described rib (9) away from one end of front end face (3) to the distance of front end face (3) equal to First Transition portion (5) away from one end of front end face (3) to the distance of front end face (3), described rib (9) is looped around on outer wall (8), and the thickness of described rib (9) is equal to First Transition portion (5) recessed sidewall (4) the innermost degree of depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610256869.1A CN105782261A (en) | 2016-04-22 | 2016-04-22 | Three-pin shaft fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610256869.1A CN105782261A (en) | 2016-04-22 | 2016-04-22 | Three-pin shaft fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105782261A true CN105782261A (en) | 2016-07-20 |
Family
ID=56399307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610256869.1A Pending CN105782261A (en) | 2016-04-22 | 2016-04-22 | Three-pin shaft fork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105782261A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352913A (en) * | 2016-09-30 | 2017-01-25 | 浙江德福精密驱动制造有限公司 | Three-pin axle fork cutting groove detecting device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11336783A (en) * | 1998-05-22 | 1999-12-07 | Toyota Motor Corp | Universal uniform coupling |
| CN101825143A (en) * | 2009-03-02 | 2010-09-08 | 通用汽车环球科技运作公司 | Constant velocity joint |
| CN102639270A (en) * | 2009-12-03 | 2012-08-15 | Ntn株式会社 | Method of machining sealing surface |
| CN203756777U (en) * | 2014-04-02 | 2014-08-06 | 宁波纬尚汽车零部件有限公司 | Improved structure of actuating shaft shank housing |
| CN204371966U (en) * | 2014-12-18 | 2015-06-03 | 江西肯特实业有限公司 | Tripod universal joint assembly |
| CN205533830U (en) * | 2016-04-22 | 2016-08-31 | 浙江德福精密驱动制造有限公司 | Three round pin shaft yoke |
-
2016
- 2016-04-22 CN CN201610256869.1A patent/CN105782261A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11336783A (en) * | 1998-05-22 | 1999-12-07 | Toyota Motor Corp | Universal uniform coupling |
| CN101825143A (en) * | 2009-03-02 | 2010-09-08 | 通用汽车环球科技运作公司 | Constant velocity joint |
| CN102639270A (en) * | 2009-12-03 | 2012-08-15 | Ntn株式会社 | Method of machining sealing surface |
| CN203756777U (en) * | 2014-04-02 | 2014-08-06 | 宁波纬尚汽车零部件有限公司 | Improved structure of actuating shaft shank housing |
| CN204371966U (en) * | 2014-12-18 | 2015-06-03 | 江西肯特实业有限公司 | Tripod universal joint assembly |
| CN205533830U (en) * | 2016-04-22 | 2016-08-31 | 浙江德福精密驱动制造有限公司 | Three round pin shaft yoke |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352913A (en) * | 2016-09-30 | 2017-01-25 | 浙江德福精密驱动制造有限公司 | Three-pin axle fork cutting groove detecting device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |
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| RJ01 | Rejection of invention patent application after publication |