CN204344725U - The rzeppa universal joint of wide seven fenestra retainers - Google Patents
The rzeppa universal joint of wide seven fenestra retainers Download PDFInfo
- Publication number
- CN204344725U CN204344725U CN201420744260.5U CN201420744260U CN204344725U CN 204344725 U CN204344725 U CN 204344725U CN 201420744260 U CN201420744260 U CN 201420744260U CN 204344725 U CN204344725 U CN 204344725U
- Authority
- CN
- China
- Prior art keywords
- retainers
- raceway groove
- fenestra
- outer spherical
- spherical surface
- 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 discloses a kind of rzeppa universal joint of wide seven fenestra retainers, comprise: transmission shaft, seven raceway groove outer races, steel ball, seven circular hole retainers, seven raceway groove star sleeve and Steel Cable Baffle Rings, seven circular hole retainers comprise: have inner ball surface, outer spherical surface and uniform seven fenestras, the center superposition of inner ball surface and outer spherical surface is arranged, inner ball surface and outer spherical surface center overlap with the widthwise central of support body, and this fenestra is circular or oval.The two ends of described inner ball surface are symmetrical inner cylindrical surface.Described seven raceway groove star sleeves comprise: body, seven raceway grooves that body is provided with outer spherical surface and is uniformly distributed along the circumference, and channel center does not overlap with outer spherical surface center.The curve form of described raceway groove is arc surface, ellipsoid or parabola.The beneficial effects of the utility model are: wide seven circular hole retainer rzeppa universal joints steadily, reliably, flexibly, accurately can not only transmit motion and torque, and reasonable stress, and carrying torque is large, shock-resistant etc.
Description
Technical field
The utility model relates to a kind of universal joint, when master and slave moving axis has angular displacement, can transmit seven circular hole retainer rzeppa universal joints of motion and torque.
Background technique
The rzeppa universal joint of conventional construction is six steel balls, outer race and star sleeve are six groups of raceway grooves, the inner ball surface of outer race and the outer spherical surface of retainer, the outer spherical surface of star sleeve and the inner ball surface of retainer be totally 4 concentric sphericals, this center overlaps with diaxon intersection point, outer race and star sleeve all on respective sphere by six inside and outside grooves, and respective channel center and its sphere centre throw of eccentric of all having an equal and opposite in direction, direction contrary.This structure, through use for many years, has following deficiency at least:
(1) owing to being six steel balls and six groups of raceway grooves, be not optimized design, make its bearing capacity low, and weight increases, waste material.
(2) due to reasons such as six raceway grooves, throw of eccentric and space layouts, cause product specification to be difficult to arrange, outer race, star sleeve, retainer equal strength be can not be guaranteed, and whole rzeppa universal joint bearing capacity is low.To change this situation, being forced to expand specification, amplifying physical dimension.Cause weight to increase, bulky, cost improves.
(3) six fenestra Rzeppa type retainers of six channel ball cage type constant velocity universal joints of conventional construction, circumferentially the fenestra of six deciles is generally rectangle.One is that this universal joint and retainer do not carry out the coupling of scientific and rational the best, and bearing capacity is reduced, and two is owing to being rectangular virtual aperture window not through optimal design, makes the radial effective reinforcement of retainer wider than narrow, unbalance stress, damaged very easily in advance during use.
Newly designed seven fenestra retainers, because fenestra is rectangular, the most carefully locating of muscle is narrower, and the insufficient strength that seems.
Model utility content
The utility model is according to above not enough, provide a kind of rzeppa universal joint of wide seven fenestra retainers, be seven steel balls and seven raceway grooves by six of the rzeppa universal joint of drive mechanism steel balls and six groups of channel design, six fenestra retainers of drive mechanism be designed to the circular fenestra retainer of circumferentially seven deciles.
The technical solution of the utility model is:
A kind of rzeppa universal joint of wide seven fenestra retainers, comprise: transmission shaft, seven raceway groove outer races, steel ball, seven circular hole retainers, seven raceway groove star sleeve and Steel Cable Baffle Rings, seven circular hole retainers comprise: have inner ball surface, outer spherical surface and uniform seven fenestras, the center superposition of inner ball surface and outer spherical surface is arranged, inner ball surface and outer spherical surface center overlap with the widthwise central of support body, and this fenestra is circular or oval.
The two ends of described inner ball surface are symmetrical inner cylindrical surface.
Described seven raceway groove star sleeves comprise: body, seven raceway grooves that body is provided with outer spherical surface and is uniformly distributed along the circumference, and channel center does not overlap with outer spherical surface center.
The curve form of described raceway groove is arc surface, ellipsoid or parabola.
The longeron in described body non-referenced face is provided with breach.
Described breach has 1-3.
Described seven raceway groove outer races do not overlap with the channel center of seven raceway groove star sleeves, and two channel center are equal with the distance at inner ball surface and outer spherical surface center, and direction is contrary.
The beneficial effects of the utility model are: wide seven circular hole retainer rzeppa universal joints steadily, reliably, flexibly, accurately can not only transmit motion and torque, and reasonable stress, and carrying torque is large, shock-resistant etc.
Accompanying drawing explanation
Fig. 1 is overall structure sectional view of the present utility model.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the sectional view of seven circular hole retainers in the utility model.
Fig. 4 is the side view of Fig. 3.
Fig. 5 is the B direction view of Fig. 4.
Fig. 6 is the sectional view of seven raceway groove star sleeves in the utility model.
Fig. 7 is the side view of Fig. 6.
Embodiment
Now by reference to the accompanying drawings the utility model is further described:
As shown in the figure, a kind of rzeppa universal joint of wide seven fenestra retainers, comprise: the inner ball surface of transmission shaft 1, seven raceway groove outer race 2, steel ball 3, seven circular hole retainer 4, seven raceway groove star sleeve 5 and Steel Cable Baffle Ring 6, seven raceway groove outer race 2 coordinates with the outer spherical surface 412 of seven circular hole retainers 4; The outer spherical surface 55 of seven raceway groove star sleeves 5 coordinates with the inner ball surface 411 of seven circular hole retainers 4, and seven circular hole retainers 4 along the circumferential direction have the circular fenestra of 7 deciles, for clamping steel ball 3; In the inner ball surface of seven raceway groove outer races 2, design 7 plain lines of circumferential decile are the interior raceway groove of circular arc; In the inner ball surface of seven raceway groove star sleeves 5, design 7 plain lines of circumferential decile are the outer raceway groove of circular arc; Seven raceway groove outer races 2 and the channels cross-section of circumferentially seven deciles of seven raceway groove star sleeves 5 are designed to the circular arc contacted with corresponding steel ball 3 one conjugation, the circular arc contacted with corresponding steel ball 3 two conjugation or ellipse respectively, the inner ball surface 411 of seven circular hole retainers 4 and outer spherical surface 55 Spielpassung of seven corresponding raceway groove star sleeves 5, the outer spherical surface 412 of seven circular hole retainers 4 and the inner ball surface Spielpassung of seven corresponding raceway groove outer races 2.
Seven circular hole retainers 4 comprise: have inner ball surface 411, outer spherical surface 412 and uniform seven fenestras 42, the center superposition of inner ball surface 411 and outer spherical surface 412 is arranged, inner ball surface 411 and outer spherical surface 412 center overlap with the widthwise central 43 of support body, and this fenestra 42 is circular, also can be oval.
The two ends of inner ball surface 411 are symmetrical inner cylindrical surface 44.
Seven raceway groove star sleeves 5 comprise: body, seven raceway grooves 51 that body is provided with outer spherical surface 55 and is uniformly distributed along the circumference, and raceway groove 51 center does not overlap with outer spherical surface 55 center.
The curve form of raceway groove 51 is arc surface, ellipsoid or parabola.
The longeron in body non-referenced face is provided with breach 54.
Breach 54 has 1-3.
Seven raceway groove outer races 2 do not overlap with the channel center of seven raceway groove star sleeves 5, and two channel center are equal with the distance at inner ball surface 411 and outer spherical surface 412 center, and direction is contrary.
Claims (6)
1. the rzeppa universal joint of wide seven fenestra retainers, comprise: transmission shaft (1), seven raceway groove outer races (2), steel ball (3), seven circular hole retainers (4), seven raceway groove star sleeves (5) and Steel Cable Baffle Ring (6), it is characterized in that, seven circular hole retainers (4) comprising: have inner ball surface (411), outer spherical surface (412) and uniform seven fenestras (42), the center superposition of inner ball surface (411) and outer spherical surface (412) is arranged, inner ball surface (411) and outer spherical surface (412) center overlap with the widthwise central (43) of support body, this fenestra (42) is circular or oval, the two ends of inner ball surface (411) are symmetrical inner cylindrical surface (44).
2. the rzeppa universal joint of a kind of wide seven fenestra retainers as claimed in claim 1, it is characterized in that, seven raceway groove star sleeves (5) comprising: body, seven raceway grooves (51) that body is provided with outer spherical surface (55) and is uniformly distributed along the circumference, raceway groove (51) center does not overlap with outer spherical surface (55) center.
3. the rzeppa universal joint of a kind of wide seven fenestra retainers as claimed in claim 2, it is characterized in that, the curve form of described raceway groove (51) is arc surface, ellipsoid or parabola.
4. the rzeppa universal joint of a kind of wide seven fenestra retainers as claimed in claim 2, is characterized in that, the longeron in described body non-referenced face is provided with breach (54).
5. the rzeppa universal joint of a kind of wide seven fenestra retainers as claimed in claim 4, is characterized in that, described breach (54) has 1-3.
6. the rzeppa universal joint of a kind of wide seven fenestra retainers as claimed in claim 1, it is characterized in that, described seven raceway groove outer races (2) do not overlap with the channel center of seven raceway groove star sleeves (5), and two channel center are equal with the distance at inner ball surface (411) and outer spherical surface (412) center, direction is contrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420744260.5U CN204344725U (en) | 2014-12-02 | 2014-12-02 | The rzeppa universal joint of wide seven fenestra retainers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420744260.5U CN204344725U (en) | 2014-12-02 | 2014-12-02 | The rzeppa universal joint of wide seven fenestra retainers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344725U true CN204344725U (en) | 2015-05-20 |
Family
ID=53227996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420744260.5U Expired - Fee Related CN204344725U (en) | 2014-12-02 | 2014-12-02 | The rzeppa universal joint of wide seven fenestra retainers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204344725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356534A (en) * | 2018-11-29 | 2019-02-19 | 邹城兖矿泰德工贸有限公司 | Double-thread drill pipe for cast steel |
-
2014
- 2014-12-02 CN CN201420744260.5U patent/CN204344725U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356534A (en) * | 2018-11-29 | 2019-02-19 | 邹城兖矿泰德工贸有限公司 | Double-thread drill pipe for cast steel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20161012 Granted publication date: 20150520 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20170412 Granted publication date: 20150520 |
|
| 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: 20150520 Termination date: 20161202 |