CN201636234U - Pre-tightening type universal-joint dust cover - Google Patents
Pre-tightening type universal-joint dust cover Download PDFInfo
- Publication number
- CN201636234U CN201636234U CN2010201424874U CN201020142487U CN201636234U CN 201636234 U CN201636234 U CN 201636234U CN 2010201424874 U CN2010201424874 U CN 2010201424874U CN 201020142487 U CN201020142487 U CN 201020142487U CN 201636234 U CN201636234 U CN 201636234U
- Authority
- CN
- China
- Prior art keywords
- cover
- ring
- skeleton
- dust
- circle
- 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 - Lifetime
Links
Images
Abstract
The utility model relates to a pre-tightening type universal-joint dust cover, belonging to the technical field of manufacturing of a universal joint and comprising a cover body and a dust cover framework, wherein the cover body comprises an outer cover ring, a middle cover ring and an inner cover ring which are connected into a body and are extended toward the same side. The inner wall of the outer cover ring is provided with an inward convex ring which is clamped in the outer annular groove of the outer ring, and the middle cover ring is adjacent to the inner wall of the outer ring. The outer wall surface of the inner cover ring is provided with a conical surface, and the end part of the inner annular ring of an oil seal rubber body is butted on the conical surface of the outer wall surface of the inner cover ring. The pre-tightening type universal-joint dust cover is beneficial to positioning between the dust cover and an oil seal and the outer ring, is beneficial to increasing the sealing and dustproof effect of a cross-axis universal joint, and solves the problems of the prior art that the reliability of positioning between the dust cover and the oil seal and the outer ring is poor, so that the sealing and dustproof effect of the cross-axis universal joint is poor, and the like.
Description
Technical field
The utility model relates to a kind of prefastening universal joint dust-proof cover, belongs to the technical field that universal joint is manufactured.
Background technique
In the prior art, majority does not directly carry out axially locating between the dust-proof cover of Hooke's joint and oil sealing and the outer ring, as a kind of Hooke's joint of being convenient to assemble (patent No.: 01210724.7), it mainly is to be provided with a circlip groove in the mouth inboard, end of outer ring, it is built-in with split washer correspondingly, opening slot also can be arranged on the oil sealing base at this place except being set directly at oral area inboard, outer ring.Mainly between the dust-proof cover of above-mentioned patent and oil sealing and the outer ring realize three's axially locating by split washer, its reliability of positioning is relatively poor, thereby causes the sealing of Hooke's joint and dustproof effect relatively poor.
Summary of the invention
The utility model purpose is to provide a kind of being beneficial between dust-proof cover and oil sealing and the outer ring to locate, be beneficial to the prefastening universal joint dust-proof cover of the universal joint of the sealing that improves Hooke's joint and dustproof effect, it is relatively poor to have solved between existing in prior technology dust-proof cover and oil sealing and the outer ring reliability of positioning, thereby causes problems such as the sealing of Hooke's joint and dustproof effect be relatively poor.
Above-mentioned technical purpose of the present utility model solves by the following technical programs: it comprises cover body and dust-proof cover skeleton, it is characterized in that: described cover body comprises and connects as one and extend outer cover circle, middle cover circle and inner cover circle to the same side, wherein the inwall of outer cover circle is formed with internal projecting ring, described internal projecting ring card fits in the outer ring groove of outer ring, middle cover circle is adjacent with the inwall of outer ring, the outer wall of inner cover circle forms the conical surface, and the interior ring end of described oil sealing rubber body is connected on the conical surface of outer wall of inner cover circle.
The internal projecting ring of dust-proof cover of the present utility model by its outer cover circle and outer ring outer ring groove cooperate and cover body is located with the realization bi-directional axial that cooperates at cross axle step place, thereby guaranteed the reliable location of dust-proof cover, and and then guaranteed of the prestressing effect of the conical surface of dust-proof cover inner cover ring outer wall face to ring in the oil sealing, thereby guaranteed that the three between oil sealing and dust-proof cover and the outer ring reliably locatees, improved the sealing and the dustproof effect of Hooke's joint.
As preferably, described dust-proof cover skeleton ringwise and comprise ring and skeleton outer shroud in the skeleton, ring and skeleton outer ring become U type structure in the skeleton, the interior ring of skeleton is embedded in the inner cover circle of cover body, the skeleton outer shroud is embedded in the outer cover circle of cover body.Wherein, ring and skeleton outer ring become U type structure and can make between the inner cover circle of cover body and the outer cover circle and have stable radial position relationship in the skeleton of dust-proof cover skeleton, thereby make between the outer ring groove of the internal projecting ring of outer cover circle and outer ring and between the interior ring end of the conical surface of inner cover ring outer wall face and oil sealing rubber body and have mutual clamping force respectively, thereby make the relative position between oil sealing, dust-proof cover and the outer ring three more reliable and more stable, thereby guarantee good sealing and dustproof effect.
As preferably, the conical surface of described dust-proof cover cover body inner cover ring outer wall face and the angle of cover body axis are 45 °-75 °, thereby the conical surface that makes dust-proof cover cover body inner cover ring outer wall face has enough inclinations and then the interior ring end of oil sealing rubber body is produced pressure preferably, helps improving the lips mouth of ring internal face in the oil sealing rubber body and the sealing effect between the cross axle surface
Therefore, the utlity model has to be beneficial between dust-proof cover and oil sealing and the outer ring and locate, be beneficial to characteristics such as the sealing that improves Hooke's joint and dustproof effect.
Description of drawings
Fig. 1 is a kind of assembly structure schematic representation of the utility model and outer ring and oil sealing;
Fig. 2 is the A place partial enlarged drawing of Fig. 1;
Fig. 3 is a kind of structural representation of the outer ring that matches with the utility model;
Fig. 4 is the B place partial enlarged drawing of Fig. 3;
Fig. 5 is a kind of structural representation of the oil sealing that matches with the utility model;
Fig. 6 is the C place partial enlarged drawing of Fig. 5;
Fig. 7 is a kind of structural representation of the present utility model;
Fig. 8 is the D place partial enlarged drawing of Fig. 7.
Embodiment
Below by specific embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: as shown in Figure 1, comprise cup-shaped structure outer ring 1, be positioned at the oil sealing 2 of opening end inboard, outer ring and be positioned at the dust-proof cover 3 of outer ring opening end, the inner bottom part of outer ring 1 is provided with packing ring 4, outer ring 1 inwall is provided with needle roller 5 between packing ring 4 and oil sealing 2, be provided with needle roller back-up ring 6 between needle roller 5 and oil sealing 2 the inners
As shown in Figure 3 and Figure 4, outer ring 1 constitutes cup-like structure by the bottom 7 of tubular wall body 6 and tubular wall body 6 one ends, the opening end outer surface of tubular wall body 6 is formed with diameter reducing part 8, the external diameter of diameter reducing part 8 is less than the external diameter of tubular wall body, the root of diameter reducing part 8 is formed with outer ring groove 9, annular groove 10 in the internal surface of tubular wall body 6 is provided with near opening end; By 11 transition of inner conical inclined-plane, by 12 transition of external conical shape inclined-plane, outer ring tubular wall body opening end is formed with interior chamfering 13 and outer chamfering 14 respectively between the outer end of outer ring groove 9 and the diameter reducing part 8 between the internal surface of the inner of interior annular groove 10 and tubular wall body.
As shown in Figure 5 and Figure 6, oil sealing comprises oil tight skeleton 15 and rubber body 16, rubber body 16 comprises interior ring 17 and the outer ring 18 that connects as one and extend to the same side, interior ring 17 inwalls form lips mouth structure 19, the part of oil tight skeleton 15 is embedded in outer ring 18, the end of oil tight skeleton 15 extends to outside the outer ring 18 and forms valgus 20, valgus 20 tapered horn strucutres, form annular spring groove 21 between interior ring 17 and the outer ring 18, be provided with annular locking spring 22 in the annular spring groove 21, the cross section of annular spring groove 21 is the arc-shaped structure greater than semi-circle.
As shown in Figure 7 and Figure 8, dust-proof cover comprises cover body 23 and dust-proof cover skeleton 24, cover body 23 comprises and connects as one and extend outer cover circle 25, middle cover circle 26 and inner cover circle 27 to the same side that wherein the inwall of outer cover circle 25 is formed with internal projecting ring 28, and the outer wall of inner cover circle 27 forms the conical surface 29; Dust-proof cover skeleton 24 ringwise and comprise ring 30 and skeleton outer shroud 31 in the skeleton, ring 30 and skeleton outer shroud 31 form U type structure in the skeleton, ring 30 is embedded in the inner cover circle of cover body in the skeleton, skeleton outer shroud 31 is embedded in the outer cover circle of cover body.The conical surface of dust-proof cover cover body inner cover ring outer wall face and the angle of cover body axis are 60 °.
As shown in Figure 2, the valgus 20 of oil tight skeleton 15 is connected in the interior annular groove 10 of outer ring 1, internal projecting ring 28 cards of dust-proof cover outer cover circle 25 fit in the outer ring groove 9 of outer ring 1, cover circle 26 is adjacent with the inwall of outer ring 1 in the dust-proof cover, and the end 32 of the interior ring 17 of oil sealing rubber body is connected on the conical surface 29 of outer wall of dust-proof cover inner cover circle 27.
Oil sealing is inner to be contacted with the needle roller back-up ring, the valgus of oil tight skeleton is connected to the interior bi-directional axial location of realizing between oil sealing and the outer ring of interior annular groove of outer ring, the lips mouth structure of ring inwall had the pretension trend that closely contacts with the universal-joint cross trunnion surface in the annular locking spring was arranged on and can makes in the annular spring groove, the interior ring end of rubber body is connected to then can be strengthened the lips mouth on the conical surface of inner cover ring outer wall face and contact with the tight of universal-joint cross trunnion, and then improve the sealing effect of oil sealing, and make between the lips mouth of oil sealing and the universal-joint cross trunnion and be in tight state of contact all the time; Dust-proof cover then the internal projecting ring by its outer cover circle and outer ring outer ring groove cooperate and cover body is located with the realization bi-directional axial that cooperates at cross axle step place, thereby guaranteed the reliable location of dust-proof cover, and and then guaranteed of the prestressing effect of the conical surface of dust-proof cover inner cover ring outer wall face to ring in the oil sealing, thereby guaranteed that the three between oil sealing and dust-proof cover and the outer ring reliably locatees, improved the sealing and the dustproof effect of Hooke's joint.
Claims (3)
1. prefastening universal joint dust-proof cover, comprise cover body and dust-proof cover skeleton, it is characterized in that: described cover body comprises and connects as one and extend outer cover circle, middle cover circle and inner cover circle to the same side, wherein the inwall of outer cover circle is formed with internal projecting ring, described internal projecting ring card fits in the outer ring groove of outer ring, in cover circle adjacent with the inwall of outer ring, the outer wall of inner cover circle forms the conical surface, the interior ring end of described oil sealing rubber body is connected on the conical surface of outer wall of inner cover circle.
2. prefastening universal joint dust-proof cover according to claim 1, it is characterized in that described dust-proof cover skeleton ringwise and comprise ring and skeleton outer shroud in the skeleton, ring and skeleton outer ring become U type structure in the skeleton, ring is embedded in the inner cover circle of cover body in the skeleton, and the skeleton outer shroud is embedded in the outer cover circle of cover body.
3. the prefastening universal joint dust-proof cover of universal joint according to claim 1 and 2 is characterized in that the conical surface of described dust-proof cover cover body inner cover ring outer wall face and the angle of cover body axis are 45 °-75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201424874U CN201636234U (en) | 2010-03-25 | 2010-03-25 | Pre-tightening type universal-joint dust cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201424874U CN201636234U (en) | 2010-03-25 | 2010-03-25 | Pre-tightening type universal-joint dust cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636234U true CN201636234U (en) | 2010-11-17 |
Family
ID=43080726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201424874U Expired - Lifetime CN201636234U (en) | 2010-03-25 | 2010-03-25 | Pre-tightening type universal-joint dust cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201636234U (en) |
-
2010
- 2010-03-25 CN CN2010201424874U patent/CN201636234U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205226096U (en) | Bearing sealing device | |
| CN201636233U (en) | Pre-tightening type inside-card fixing universal-joint oil seal | |
| CN102200171B (en) | Pre-tightening type double-lip seal structure of cardan joint | |
| CN201636234U (en) | Pre-tightening type universal-joint dust cover | |
| CN201636222U (en) | Double buckle type lardan university joint outer ring | |
| CN203315105U (en) | Universal electric toothbrush head | |
| CN202266611U (en) | Drum-shaped toothed coupling joint | |
| CN202545626U (en) | Universal joint assembly with shaft sleeve mechanism | |
| CN203331715U (en) | Compact hub | |
| CN211449966U (en) | Movable joint | |
| CN201031885Y (en) | Locking type dustproof sealed gimbal joint | |
| CN201396375Y (en) | Double-row self-aligning ball bearing with anti-bend and anti-edge curl dustproof cover | |
| CN205064595U (en) | A seal structure for bearing | |
| CN201218289Y (en) | Universal joint bearing with oil seal anti-dropping structure | |
| CN205896175U (en) | Take outer seal assembly of two skeletons | |
| CN205639283U (en) | Hub bearing | |
| CN202545621U (en) | Universal joint assembly with oil plug mechanism | |
| CN210637402U (en) | Cross transmission shaft for agricultural machinery | |
| CN209705075U (en) | A kind of dust cover of spherical hinge assembly | |
| CN202806866U (en) | Ball pin assembly of automobile | |
| CN217259397U (en) | Hub unit with ABS magnetic encoder | |
| CN203161877U (en) | Double-sealed universal joint assembly | |
| CN208538024U (en) | Shaft applied to laptop piv-oting mechanism | |
| CN202946684U (en) | Composite hub oil seal | |
| CN206268282U (en) | Bearing cage with sealing property |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |