CN214888477U - Structure for preventing opening part of universal joint sealing cover from rotating - Google Patents
Structure for preventing opening part of universal joint sealing cover from rotating Download PDFInfo
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- CN214888477U CN214888477U CN202121257373.9U CN202121257373U CN214888477U CN 214888477 U CN214888477 U CN 214888477U CN 202121257373 U CN202121257373 U CN 202121257373U CN 214888477 U CN214888477 U CN 214888477U
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- bulge
- circumferential bulge
- sealing cover
- universal joint
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Abstract
A structure for preventing rotation of a seal cover of a universal joint is used for preventing relative displacement between the seal cover and an outer shell. The mouth of the sealing cover is provided with a radial bulge and a circumferential bulge; the radial bulges are uniformly distributed on the circumference of two to six positions with the transition circular arc R of 2.5mm, the height H of 0.5mm to 0.8mm and the width B of 3mm to 4 mm; the first circumferential bulge and the second circumferential bulge of the circumferential bulge are positioned on the outer side of the radial bulge, and the first circumferential bulge and the second circumferential bulge are in transition arcs R1Is 2.5mm, high H1Is 0.5mm, width B1Is 3 mm. The utility model discloses can prevent effectively that sealed cowling and clamp from producing displacement phenomenon between wide-angle operation, and the bell shell, improve sealed cowling andthe reliability of the sealing of the bell-shaped shell and the service life of the sealing cover protect the lubricating environment in the universal joint and meet the requirement of normal sealing operation under a large angle.
Description
Technical Field
The utility model relates to a mechanical transmission technical field specifically is a prevent turriform sealed cowling pivoted structure on bell shell of universal joint.
Background
At present, when the rzeppa synchronous universal transmission shaft is used, a large opening at the end part of a sealing cover of the rzeppa synchronous universal transmission shaft is arranged on an outer bell-shaped shell and is clamped by a clamp. However, when the transmission shaft runs at an angle, one end of the sealing cover is stretched, and the other end of the sealing cover is extruded. When the angle is increased, the extrusion force borne by the seal cover is also greatly increased. In the swing angle rotating process, because the linear velocity on the circumference is inconsistent, along with the increase of the extrusion force born by the sealing cover, the friction force is formed between every pleat of the sealing cover, when the friction force is increased to be larger than the clamping force of the clamping hoop of the sealing cover, the clamping hoop cannot fix the opening part of the sealing cover on the bell-shaped shell, the displacement is formed between the opening part of the sealing cover and the bell-shaped shell, the sealing cover is twisted, and at the moment, the sealing cover can collapse or break. The existing fixing between the sealing cover and the outer shell basically only considers the falling off of the sealing cover, and does not consider the relative displacement phenomenon between the sealing cover and the outer sleeve. Therefore, it is very important to optimize the structure of the seal cap fixed to the outer race.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a structure for preventing the opening part of a sealing cover of a universal joint from rotating so as to prevent the relative displacement between the opening part of the sealing cover and a bell-shaped shell.
In order to achieve the above purpose, the sealing cover of the present invention has a radial protrusion and a circumferential protrusion at the mouth.
The radial bulges are uniformly distributed on the circumference of two to six positions of which the transition circular arc R is 2.5mm, the height H is 0.5mm-0.8mm and the width B is 3mm-4 mm.
The first circumferential bulge and the second circumferential bulge of the circumferential bulge are positioned on the outer side of the radial bulge, and the first circumferential bulge and the second circumferential bulge are in transition arcs R1Is 2.5mm, high H1Is 0.5mm, width B1Is 3 mm.
The utility model discloses in the use, when the transmission shaft area angle operation, increase protruding back because of the tip of sealed cowling, use with the notch cooperation on the bell-shaped shell, when the clamp with the chucking between sealed cowling and the bell-shaped shell, the bulging at first will be overcome to the sealed cowling from the notch to the bulging force that does not have the notch position, just enable to form the distortion between sealed cowling and the overcoat, this just needs the sealed cowling to produce the power of displacement to strengthen greatly, lean on the displacement that the friction between the sealed cowling can not form the sealed cowling alone, thereby can play the effect of protection sealed cowling.
Compared with the prior art, the utility model, carry out profile modeling optimization with the width and the degree of depth of bell shell casing oral area cooperation groove to optimize not unidimensional sealed cowling structure and prevent rotating-structure, can prevent effectively that sealed cowling and clamp from producing displacement phenomenon between the wide-angle operation, and the bell shell improves the sealed reliability of sealed cowling and bell shell and the life of sealed cowling, and the inside lubricated environment of protection universal joint satisfies the requirement of sealed normal work under the wide-angle.
Drawings
Fig. 1 is a schematic view of the sealing cover structure of the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
Fig. 3 is an enlarged view of the radial protrusion I of fig. 1.
Fig. 4 is an enlarged view of the first circumferential projection and the second circumferential projection in fig. 2 at position II.
Detailed Description
As shown in fig. 1, 2, 3 and 4, the present invention is provided with a radial protrusion 1 and a circumferential protrusion at the mouth of the sealing cover 4.
The radial bulge 1 is evenly distributed with three positions on the circumference, the transition circular arc R of the radial bulge 1 is 2.5mm, the height H is 0.5mm-0.8mm, the width B is 3mm-4mm, the radial bulge is matched with a corresponding groove on the bell-shaped shell, the depth of a corresponding groove opening on the bell-shaped shell is 0.6-0.9mm, the width is 3mm-5mm, the radial bulge and the groove opening are evenly distributed on the circumference, the phenomenon of displacement between the seal cover 4 and the bell-shaped shell when the seal cover and a clamp operate at a large angle can be effectively prevented, the seal reliability of the seal cover 4 and the bell-shaped shell is improved, and the service life of the seal cover 4 is prolonged.
The first circumferential bulge 2 and the second circumferential bulge 3 of the circumferential bulge are positioned on the outer side of the radial bulge 1, and the first circumferential bulge 2 and the second circumferential bulge 3 are transition arcs R1Is 2.5mm, high H1Is 0.5mm, width B13mm, the depth of the corresponding groove opening on the bell-shaped shell is 3mm, and the width is 3.5 mm; the first circumferential bulge 2 and the second circumferential bulge 3 can play a role in sealing lubricating grease, protect the lubricating environment inside the universal joint and meet the requirement of normal sealing operation at a large angle.
Claims (3)
1. The utility model provides a prevent sealed mouthful of pivoted structure of portion of universal joint which characterized in that: the mouth of the sealing cover (4) is provided with a radial bulge (1) and a circumferential bulge.
2. The structure of claim 1, wherein the structure for preventing rotation of the sealing port of the universal joint comprises: the radial protrusions (1) are uniformly distributed on the circumference of two to six positions of which the transition circular arc R is 2.5mm, the height H is 0.5mm-0.8mm and the width B is 3mm-4 mm.
3. The structure of claim 1, wherein the structure for preventing rotation of the sealing port of the universal joint comprises: the first circumferential bulge (2) and the second circumferential bulge (3) of the circumferential bulge are positioned on the outer side of the radial bulge (1), and the transition circular arcs R of the first circumferential bulge (2) and the second circumferential bulge (3) are arranged1Is 2.5mm, high H1Is 0.5mm, width B1Is 3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121257373.9U CN214888477U (en) | 2021-06-07 | 2021-06-07 | Structure for preventing opening part of universal joint sealing cover from rotating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121257373.9U CN214888477U (en) | 2021-06-07 | 2021-06-07 | Structure for preventing opening part of universal joint sealing cover from rotating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214888477U true CN214888477U (en) | 2021-11-26 |
Family
ID=78934475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121257373.9U Active CN214888477U (en) | 2021-06-07 | 2021-06-07 | Structure for preventing opening part of universal joint sealing cover from rotating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214888477U (en) |
-
2021
- 2021-06-07 CN CN202121257373.9U patent/CN214888477U/en active Active
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