CN210068742U - Belt pulley bearing - Google Patents
Belt pulley bearing Download PDFInfo
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- CN210068742U CN210068742U CN201920388834.2U CN201920388834U CN210068742U CN 210068742 U CN210068742 U CN 210068742U CN 201920388834 U CN201920388834 U CN 201920388834U CN 210068742 U CN210068742 U CN 210068742U
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- wall
- roller
- ring
- retainer
- bearing
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Abstract
A belt pulley bearing comprises an inner ring and an outer ring of the bearing, wherein an annular convex ring is formed on the outer wall of the middle part of the inner ring, deep groove ball bearings are inserted and sleeved on the inner rings on two sides of the convex ring, the deep groove ball bearings are inserted and connected at two ends of the outer ring, a roller assembly is inserted and connected between the outer wall of the convex ring on the inner ring and the inner wall of the outer ring, the roller assembly comprises an annular retainer, a plurality of roller containing grooves are formed on the retainer, cylindrical rollers and an arc-shaped elastic sheet are inserted and connected in the roller containing grooves, the middle part of the elastic sheet is pressed against the cylindrical rollers, the outer wall of the retainer, which extends out of two ends of the elastic sheet, is bent and formed with L-shaped clamping sheets, clamping grooves are formed on the upper end surface and the lower end surface of the retainer between the adjacent roller; the cylindrical rollers on the roller assembly respectively abut against the outer wall of the convex ring and the inner wall of the outer ring. The roller structure between the inner ring and the outer ring of the bearing is adjusted, so that the assembly operation of the bearing is facilitated, and the service life of the bearing can be prolonged.
Description
The technical field is as follows:
the utility model relates to a belt pulley bearing's technical field, more specifically say and relate to a belt pulley bearing.
Background art:
along with the continuous improvement of the power and the improvement of the rotating speed of the automobile generator, in order to prevent the slipping phenomenon, the groove shape of the one-way belt pulley of the automobile generator is gradually developed into a wedge shape from a triangle, so that the generator obtains good performance in operation. Meanwhile, the bearing applied to the one-way belt pulley has the function of a one-way clutch. The crankshaft of the engine can swing forward and backward for a short time at the moment before the engine stops working, and the rotor of the generator can still rotate in the original direction at the moment, so that the magnetic coil in the rotor is prevented from being damaged due to forward and backward impact. However, the bearing generally adopts a plurality of groups of rollers to connect the inner ring and the outer ring of the bearing, the installation structure of the rollers is complex, the assembly of the bearing is troublesome, the rollers in the bearing are easy to wear, and the service life of the bearing is short.
The utility model has the following contents:
the utility model aims at providing a not enough to prior art, and provide a belt pulley bearing, it has adjusted the roller structure between the bearing inner and outer lane and has improved roller assembly's connection structure, makes things convenient for the assembly of bearing to can prolong bearing's life.
A pulley bearing comprises an inner ring and an outer ring of the bearing, wherein an annular convex ring is formed on the outer wall of the middle part of the inner ring, deep groove ball bearings are inserted and sleeved on the inner rings on two sides of the convex ring, the deep groove ball bearings are inserted and connected at two ends of the outer ring, a roller assembly is inserted and connected between the outer wall of the convex ring on the inner ring and the inner wall of the outer ring, the roller assembly comprises an annular retainer, a plurality of roller accommodating grooves are formed on the retainer, cylindrical rollers and an arc-shaped elastic sheet are inserted and connected in the roller accommodating grooves, the middle part of the elastic sheet is pressed against the cylindrical rollers, the outer wall of the retainer, which extends out of two ends of the elastic sheet, is provided with L-shaped clamping sheets in a bending mode, clamping grooves are formed on the upper end face and the lower end face of the retainer between the adjacent roller; and cylindrical rollers on the roller assembly respectively abut against the outer wall of the convex ring and the inner wall of the outer ring.
Preferably, an annular groove is formed in the outer wall of the outer ring, and a plurality of V-shaped belt grooves are formed in the bottom surface of the groove.
Preferably, a threaded hole is formed in the inner wall of the middle of the inner ring, a first reaming hole and a second reaming hole are formed in the inner rings at two ends of the threaded hole respectively, a plurality of tooth grooves are formed in the inner wall of the first reaming hole, and the tooth grooves are uniformly distributed in an annular mode around the central axis of the inner ring.
Preferably, the diameter of the cylindrical roller on the roller assembly is larger than the thickness of the cage.
Preferably, a circular arc is formed on one side wall of the roller containing groove on the retainer, and the cylindrical roller abuts against the circular arc side wall of the containing groove.
Preferably, the belt pulley bearing is a one-way bearing, the diameter of the inner wall of the outer ring of the roller assembly is smaller than the diameter of the inner wall of the outer ring of the two ends of the roller assembly, a plurality of arc-shaped limiting grooves are formed in the inner wall of the outer ring of the roller assembly, inward protruding flanges are formed in the inner wall of the outer ring on one side of each limiting groove, the number of the flanges and the limiting grooves is equal to the number of the cylindrical rollers on the roller assembly, and the flanges and the limiting grooves are uniformly distributed in an annular shape around the central axis of the outer ring.
Preferably, one end of the outer ring is inserted and sleeved with a dustproof end cover.
The beneficial effects of the utility model reside in that:
the roller structure between the inner ring and the outer ring of the bearing is adjusted, one roller assembly and two deep groove ball bearings are adopted, and the deep groove ball bearings are used for replacing the roller assembly to bear abrasion, so that the service life of the bearing can be prolonged; meanwhile, the structure of the roller assembly is improved, and the assembly operation of the bearing is facilitated by matching with the deep groove ball bearing.
Description of the drawings:
FIG. 1 is a schematic sectional view of the present invention;
fig. 2 is a schematic perspective view of the roller assembly of the present invention;
fig. 3 is a schematic sectional structural view of the roller assembly of the present invention.
In the figure: 1. an inner ring; 11. a convex ring; 12. a threaded hole; 13. first reaming; 14. second reaming; 2. an outer ring; 21. a groove; 22. a belt groove; 3. a roller assembly; 31. a holder; 311. a roller seating groove; 312. a card slot; 32. a roller; 33. an elastic sheet; 331. a clip sheet; 4. a deep groove ball bearing; 5. and a dust-proof end cover.
The specific implementation mode is as follows:
example (b): referring to fig. 1, 2 and 3, a belt pulley bearing comprises an inner ring 1 and an outer ring 2 of the bearing, an annular convex ring 11 is formed on the outer wall of the middle part of the inner ring 1, deep groove ball bearings 4 are inserted and sleeved on the inner rings 1 at two sides of the convex ring 11, the deep groove ball bearings 4 are inserted and connected at two ends of the outer ring 2, a roller assembly 3 is inserted and connected between the outer wall of the convex ring 11 on the inner ring 1 and the inner wall of the outer ring 2, the roller assembly 3 comprises an annular retainer 31, a plurality of roller containing grooves 311 are formed on the retainer 31, cylindrical rollers 32 and circular arc-shaped elastic sheets 33 are inserted and connected in the roller containing grooves 311, the middle parts of the elastic sheets 33 are pressed on the cylindrical rollers 32, and L-shaped clamping sheets 331 are arranged at two ends of the elastic sheets 33 extending out of the, clamping grooves 312 are formed in the upper end face and the lower end face of the retainer 31 between the adjacent roller arrangement grooves 311, and clamping pieces 331 at two ends of the elastic piece 33 are clamped in the clamping grooves 312 of the retainer 31; the cylindrical rollers 32 on the roller assembly 3 respectively abut against the outer wall of the convex ring 11 and the inner wall of the outer ring 2.
Preferably, an annular groove 21 is formed on the outer wall of the outer ring 2, and a plurality of V-shaped belt grooves 22 are formed on the bottom surface of the groove 21.
Preferably, a threaded hole 12 is formed in the inner wall of the middle of the inner ring 1, a first counterbore 13 and a second counterbore 14 are formed in the inner ring 1 at two ends of the threaded hole 12, a plurality of tooth grooves are formed in the inner wall of the first counterbore 13, and the tooth grooves are uniformly distributed in an annular shape around the central axis of the inner ring 1.
Preferably, the diameter of the cylindrical roller 32 on the roller assembly 3 is larger than the thickness of the cage 31.
Preferably, a circular arc shape is formed on one side wall of the roller seating slot 311 of the retainer 31, and the cylindrical roller 32 abuts against the circular arc-shaped side wall of the seating slot 311.
Preferably, the belt pulley wheel bearing be one-way bearing, the 2 inner wall diameters of outer lane of roller assembly 3 department are less than the inner wall diameters of 3 both ends outer lane 2 of roller assembly, the shaping has a plurality of convex spacing grooves on the 2 inner walls of outer lane of roller assembly 3 department, the shaping has inside bellied flange on the 2 inner walls of outer lane of spacing groove one side, the quantity of flange and spacing groove equals with the quantity of cylindrical roller 32 on the roller assembly 3, flange and spacing groove are annular evenly distributed around the central axis of outer lane 2.
Preferably, one end of the outer ring 2 is inserted and sleeved with a dustproof end cover 5.
The working principle is as follows: the utility model relates to a belt pulley bearing, it has adjusted the roller structure between the bearing inner and outer lane, adopts a roller assembly 3 and two deep groove ball bearings 4, and deep groove ball bearings 4 distribute the framework in roller assembly 3 both sides, utilizes deep groove ball bearing 4 to replace roller assembly to undertake wearing and tearing; meanwhile, the deep groove ball bearings 4 can limit the roller assemblies 3 and realize sealing among the deep groove ball bearings 4, and grease is injected among the deep groove ball bearings 4, so that the lubrication of the rollers can be realized, the abrasion is reduced, and the service life of the bearings can be prolonged;
meanwhile, the structure of the roller assembly 3 is improved, the roller assembly 3 can be provided with an independent part, and the rollers 32 on the roller assembly 3 are conveniently arranged on the retainer 31 and cannot fall off; firstly, the roller component 3 is inserted between the inner ring 1 and the outer ring 2 of the bearing, and then the deep groove ball shafts 4 are inserted, and the roller component 3 is matched with the structures of the two deep groove ball shafts 4, so that the assembly operation of the bearing is facilitated.
The examples are intended to be illustrative, but not limiting, of the invention. The embodiments can be modified by those skilled in the art without departing from the spirit and scope of the present invention, and therefore, the scope of the present invention should be determined by the appended claims.
Claims (7)
1. The utility model provides a belt pulley bearing, includes inner circle (1) and outer lane (2) of bearing, its characterized in that: an annular convex ring (11) is formed on the outer wall of the middle of the inner ring (1), deep groove ball bearings (4) are inserted and sleeved on the inner rings (1) on two sides of the convex ring (11), the deep groove ball bearings (4) are inserted and connected at two ends of the outer ring (2), a roller assembly (3) is inserted and connected between the outer wall of the convex ring (11) on the inner ring (1) and the inner wall of the outer ring (2), the roller assembly (3) comprises an annular retainer (31), a plurality of roller containing grooves (311) are formed on the retainer (31), cylindrical rollers (32) and arc-shaped elastic sheets (33) are inserted and connected in the roller containing grooves (311), the middle of each elastic sheet (33) is pressed on the cylindrical rollers (32), L-shaped clamping sheets (331) are bent and formed by extending the two ends of each elastic sheet (33) out of the outer wall of the retainer (31), and the retainer (31) between the adjacent roller containing grooves (311) is provided with, A clamping groove (312) is formed on the lower end face, and clamping sheets (331) at two ends of the elastic sheet (33) are clamped in the clamping grooves (312) of the retainer (31); and cylindrical rollers (32) on the roller assembly (3) respectively abut against the outer wall of the convex ring (11) and the inner wall of the outer ring (2).
2. A pulley wheel bearing according to claim 1, wherein: an annular groove (21) is formed in the outer wall of the outer ring (2), and a plurality of V-shaped belt grooves (22) are formed in the bottom surface of the groove (21).
3. A pulley wheel bearing according to claim 1, wherein: threaded holes (12) are formed in the inner wall of the middle portion of the inner ring (1), first counterbores (13) and second counterbores (14) are formed in the inner rings (1) at the two ends of the threaded holes (12) respectively, a plurality of tooth grooves are formed in the inner wall of the first counterbores (13), and the tooth grooves are uniformly distributed in an annular mode around the central axis of the inner rings (1).
4. A pulley wheel bearing according to claim 1, wherein: the diameter of the cylindrical roller (32) on the roller component (3) is larger than the thickness of the retainer (31).
5. The pulley wheel bearing according to claim 4, wherein: a circular arc is formed on one side wall of the roller containing groove (311) in the retainer (31), and the cylindrical roller (32) abuts against the circular arc-shaped side wall of the containing groove (311).
6. A pulley wheel bearing according to claim 1, wherein: the belt pulley wheel bearing be one-way bearing, outer lane (2) inner wall diameter of roller subassembly (3) department is less than the inner wall diameter of roller subassembly (3) both ends outer lane (2), the shaping has the convex spacing groove of a plurality of ways on outer lane (2) inner wall of roller subassembly (3) department, the shaping has inside bellied flange on outer lane (2) inner wall of spacing groove one side, the quantity of flange and spacing groove equals with roller subassembly (3) on the quantity of cylindrical roller (32), flange and spacing groove are annular evenly distributed around the central axis of outer lane (2).
7. A pulley wheel bearing according to claim 1, wherein: and one end of the outer ring (2) is sleeved with a dustproof end cover (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920388834.2U CN210068742U (en) | 2019-03-26 | 2019-03-26 | Belt pulley bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920388834.2U CN210068742U (en) | 2019-03-26 | 2019-03-26 | Belt pulley bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210068742U true CN210068742U (en) | 2020-02-14 |
Family
ID=69434459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920388834.2U Active CN210068742U (en) | 2019-03-26 | 2019-03-26 | Belt pulley bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210068742U (en) |
-
2019
- 2019-03-26 CN CN201920388834.2U patent/CN210068742U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 312500 No.1 Yanjiang East Road, Yulin street, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: ZHEJIANG UNIFAR AUTOMOBILE BEARINGS Co.,Ltd. Address before: 312500 Building 2, No.3, Jiangdong Road, Meizhu Town, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG UNIFAR AUTOMOBILE BEARINGS Co.,Ltd. |