CN202301518U - Three-fork universal joint of cylindrical shaft - Google Patents
Three-fork universal joint of cylindrical shaft Download PDFInfo
- Publication number
- CN202301518U CN202301518U CN2011204328816U CN201120432881U CN202301518U CN 202301518 U CN202301518 U CN 202301518U CN 2011204328816 U CN2011204328816 U CN 2011204328816U CN 201120432881 U CN201120432881 U CN 201120432881U CN 202301518 U CN202301518 U CN 202301518U
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- CN
- China
- Prior art keywords
- universal joint
- bearing pin
- roller
- pin
- fork
- 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
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Abstract
The utility model relates to a universal joint, in particular to a three-fork universal joint of a cylindrical shaft. The three-fork universal joint is mainly used for solving the technical problems that the universal joint in the prior art adopts a cross shaft, and if the universal joint is arranged in an engineering machine, due to four pin shafts, the fracture is easily generated when in use and the service life is shorter and the like. The three-fork universal joint comprises a three-pin-shaft body (1), wherein the three-pin-shaft body is internally provided with a through hole (2). The three-fork universal joint is characterized in that three pin shafts of the three-pin-shaft body (1) are cylindrical, and are respectively sheathed with a roller (2); a rolling needle (4) is arranged between each roller and each pin shaft; and the outer end of the rolling needle is provided with a locking ring (5) which is externally provided with a clamping ring (6).
Description
Technical field
The utility model relates to a kind of universal joint, especially relates to a kind of cylinder axis trident universal joint.
Background technique
Universal-joint cross trunnion of the prior art is generally all formed by middle axis body and with the arm that middle axis body links into an integrated entity.Chinese patent discloses a kind of high tenacity Hooke's joint (notice of authorization number: CN 2464984Y); It comprises cross axle and is arranged on the needle roller around the cross axle spindle nose and puts and outer ring that needle roller is outer; The end of outer ring is provided with packing holder, on said packing holder, is provided with seal ring skeleton and seal placed on it; And the inboard of seal is provided with tilting outer lip and inside middle lip and the inner lip of lip successively, and two lips contact with the axle journal of cross axle; Tiltedly be provided with the grinding undercut of annular between internal face and the needle roller end face ring, the plane of technology groove connects really in flat end needle rollers end face and the bearing.What but this universal joint adopted is cross axle, if be installed in the engineering machinery, because it has four bearing pins, is easy to generate fracture when therefore using, and working life is shorter.
The model utility content
The utility model provides a kind of cylinder axis trident universal joint; It mainly is that what to solve that the existing in prior technology universal joint adopts is cross axle, if be installed in the engineering machinery, because it has four bearing pins; Therefore be easy to generate fracture when using, the technical problem that working life is short etc.
The above-mentioned technical problem of the utility model mainly is able to solve through following technical proposals:
The cylinder axis trident universal joint of the utility model; Comprise three bearing pin bodies, three bearing pin body interior are provided with through hole, and three bearing pins of described three bearing pin bodies all are cylindrical; All be socketed with a roller on it; Be provided with needle roller between roller and the bearing pin, the outer end of needle roller is provided with lock ring, and lock ring is provided with bail wire outward.After all installing roller on three bearing pins, roller can be rotated around bearing pin, and three bearing pin bodies can be packed in the housing, thereby realizes the function of trident universal joint through three bearing pins, roller.Owing to have only three bearing pins on the three bearing pin bodies, so its join strength with the spider body is stronger, use can be born bigger power in engineering machinery the time, and difficult quilt twists off, fractures, and working life is longer.Carburization Treatment, surface and the hardness HRC58-62 of spline place, effective case depth 0.5-1.0mm, centre hardness HRC33-48 are adopted in the heat treatment of three bearing pin bodies and bearing pin.
As preferably, the axle journal place of described three bearing pin upper pins is provided with step.The step at bearing pin axle journal place can be installed structures such as oil sealing, can assemble with roller better.
As preferably, the two ends of described through hole are provided with chamfering.Chamfering is set, is convenient to three bearing pins are assemblied in the trident universal joint.
Therefore, the utility model can not only play the effect of universal joint through on three bearing pins of three bearing pin bodies, roller being installed, and can make the intensity of whole trident universal joint stronger, can use in engineering machinery, and is simple and reasonable for structure.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the utility model;
Accompanying drawing 2 is a kind of structural representations of the utility model spider;
Accompanying drawing 3 is side structure schematic representation of Fig. 2.
Component, position and numbering among the figure: three bearing pin bodies 1, through hole 2, roller 3, needle roller 4, lock ring 5, bail wire 6, step 7, chamfering 8.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technological scheme of the utility model.
Embodiment: the cylinder axis trident universal joint that this is routine, like Fig. 1, Fig. 2, Fig. 3, there is one three bearing pin body, 1, three bearing pin body interior to be provided with through hole 2, the two ends of through hole are provided with chamfering 8.Three bearing pins of three bearing pin bodies all are cylindrical, all are socketed with a roller 3 on it, are provided with needle roller 4 between roller and the bearing pin, and the outer end of needle roller is provided with lock ring 5, and lock ring is provided with bail wire 6 outward.The axle journal place of three bearing pin body upper pins is provided with step 7.
During use, in the through hole 2 of three bearing pin bodies 1, load onto axle, on three bearing pins of three bearing pin bodies 1, install roller 3, whole universal joint is encased in the housing gets final product again.
The above is merely the specific embodiment of the utility model; But the structure characteristic of the utility model is not limited thereto; Any those skilled in the art is in the field of the utility model, and variation of being done or modification all are encompassed among the claim of the utility model.
Claims (3)
1. cylinder axis trident universal joint; Comprise three bearing pin bodies (1), three bearing pin body interior are provided with through hole (2), and three bearing pins that it is characterized in that described three bearing pin bodies (1) all are cylindrical; All be socketed with a roller (3) on it; Be provided with needle roller (4) between roller and the bearing pin, the outer end of needle roller is provided with lock ring (5), and lock ring is provided with bail wire (6) outward.
2. cylinder axis trident universal joint according to claim 1 is characterized in that the axle journal place of described three bearing pin body (1) upper pins is provided with step (7).
3. cylinder axis trident universal joint according to claim 1 and 2 is characterized in that the two ends of described through hole (2) are provided with chamfering (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204328816U CN202301518U (en) | 2011-11-04 | 2011-11-04 | Three-fork universal joint of cylindrical shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204328816U CN202301518U (en) | 2011-11-04 | 2011-11-04 | Three-fork universal joint of cylindrical shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301518U true CN202301518U (en) | 2012-07-04 |
Family
ID=46370424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204328816U Expired - Fee Related CN202301518U (en) | 2011-11-04 | 2011-11-04 | Three-fork universal joint of cylindrical shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301518U (en) |
-
2011
- 2011-11-04 CN CN2011204328816U patent/CN202301518U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20141104 |
|
| EXPY | Termination of patent right or utility model |