CN209262201U - A kind of separation preventing mono-directional overrun belt pulley - Google Patents
A kind of separation preventing mono-directional overrun belt pulley Download PDFInfo
- Publication number
- CN209262201U CN209262201U CN201822205835.7U CN201822205835U CN209262201U CN 209262201 U CN209262201 U CN 209262201U CN 201822205835 U CN201822205835 U CN 201822205835U CN 209262201 U CN209262201 U CN 209262201U
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- Prior art keywords
- clutch
- mandrel
- belt pulley
- inner ring
- spring bearing
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Abstract
The utility model provides a kind of separation preventing mono-directional overrun belt pulley, including belt pulley, mandrel, needle roller clutch and spring bearing, belt pulley is set on the outside of mandrel and is coaxially disposed, spring bearing is two, it is respectively supported at the left and right ends between belt pulley and mandrel, needle roller clutch is located between two spring bearings, and for the torque transmitting between belt pulley and mandrel;Needle roller clutch includes clutch inner ring, clutch outer, needle roller and retainer, and clutch inner ring and clutch outer are coaxially arranged inside and outside, and the retainer is arranged between clutch inner ring and clutch outer, and needle roller is arranged on retainer;The spring bearing inner ring and clutch inner ring are interference fitted with mandrel, and the outer end face of the spring bearing inner ring and the outer end face of the mandrel rivet.The utility model middle (center) bearing inner ring and mandrel mandrel both ends rivet, and prevent bearing inner race from axially deviating from from mandrel.
Description
Technical field
The utility model relates to a kind of separation preventing mono-directional overrun belt pulleys.
Background technique
Usual automobile engine is all made of belt pulley and realizes transmission through transmission belt and automobile engine, in order to reduce acceleration and deceleration
Process middle belt pulley shock and vibration and noise, using separation preventing mono-directional overrun belt pulley, existing separation preventing mono-directional overrun belt
Wheel includes belt pulley, mandrel, clutch and spring bearing, and belt pulley is set on the outside of mandrel and is coaxially disposed, the support
Bearing is two, is respectively supported at the left and right ends between belt pulley and mandrel, needle roller clutch be located at two spring bearings it
Between, and for the torque transmitting between belt pulley and mandrel;In operation process, the retainer of clutch is because of axial movement and axis
Axial active force can be generated between holding, and bearing can be made axially to deviate from from mandrel.
Utility model content
The technical problem to be solved by the utility model is in order to overcome prior art middle (center) bearing axially to deviate from from mandrel
Deficiency, the utility model provides a kind of separation preventing mono-directional overrun belt pulley.
The utility model solves its technical problem technical solution to be taken: a kind of separation preventing mono-directional overrun belt
Wheel, including belt pulley, mandrel, needle roller clutch and spring bearing, the belt pulley are set on the outside of mandrel and are coaxially disposed,
The spring bearing is two, is respectively supported at the left and right ends between belt pulley and mandrel, each spring bearing wraps
Spring bearing inner ring and spring bearing outer ring are included, the needle roller clutch is located between two spring bearings, and is used for belt pulley
Torque transmitting between mandrel;The needle roller clutch includes clutch inner ring, clutch outer, needle roller and retainer, institute
State clutch inner ring and clutch outer be coaxially arranged inside and outside, retainer setting clutch inner ring and clutch outer it
Between, the needle roller is arranged on retainer;The spring bearing inner ring and clutch inner ring are interference fitted with mandrel, the branch
The outer end face of the outer end face and the mandrel that support bearing inner race rivets.
Specifically, the mandrel is equipped with the riveting flange turned down to spring bearing.
Bearing inner race and mandrel mandrel both ends rivet, and prevent bearing inner race from axially deviating from from mandrel.
Further, the clutch outer and belt pulley inner hole are interference fitted, and the spring bearing outer ring and belt pulley
Inner hole sliding or transition fit, there are gap between the clutch outer end face and spring bearing cycle surface, belt pulley can
The centering of axial floating self-alignment misaligns the influence to work belt to reduce Pulley shaft to installation site.
The beneficial effects of the utility model are:
(1) bearing inner race and mandrel mandrel both ends rivet, and prevent bearing inner race from axially deviating from from mandrel;
(2) belt pulley can the centering of axial floating self-alignment with reduce Pulley shaft to installation site misalign to belt work
It influences.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the best embodiment of the utility model.
Fig. 2 is the enlarged drawing in Fig. 1 at A.
In figure: 1, belt pulley, 2, mandrel, 3, spring bearing inner ring, 4, spring bearing outer ring, 5, clutch inner ring, 6, from
Clutch outer ring, 7, needle roller, 8, retainer, 9, riveting flange.
Specific embodiment
The utility model is described in detail presently in connection with attached drawing.This figure is simplified schematic diagram, only in a schematic way
Illustrate the basic structure of the utility model, therefore it only shows composition related with the utility model.
As depicted in figs. 1 and 2, a kind of separation preventing mono-directional overrun belt pulley of the utility model, including belt pulley 1, mandrel
2, needle roller clutch and spring bearing, the belt pulley 1 are set in 2 outside of mandrel and are coaxially disposed, and the spring bearing is
Two, the left and right ends between belt pulley 1 and mandrel 2 are respectively supported at, each spring bearing includes in spring bearing
Circle 3 and spring bearing outer ring 4, the needle roller clutch are located between two spring bearings, and for belt pulley 1 and mandrel 2 it
Between torque transmitting;It is characterized by: the needle roller clutch includes clutch inner ring 5, clutch outer 6, needle roller 7 and keeps
Frame 8, the clutch inner ring 5 and clutch outer 6 are coaxially arranged inside and outside, and the retainer 8 is arranged in 5 He of clutch inner ring
Between clutch outer 6, the needle roller 7 is arranged on retainer 8;The spring bearing inner ring 3 and clutch inner ring 5 are and core
Axis 2 is interference fitted, and the radial height of the spring bearing inner ring 3 is greater than the radial height of clutch inner ring 5, makes retainer 8
The inner face of outer end face and spring bearing inner ring 3 offsets.
Bearing inner race and clutch inner ring 5 are interference fitted with mandrel 2, and bearing inner race is higher than clutch inner ring 5, makes axis
It holds inner ring end face and provides axial bearing for 8 end face of retainer, improve the axial support stiffness of retainer 8 and avoid retainer 8 because of axis
It is interfered to mobile with bearing sealed ring.
Further, the outer end face of the outer end face of the spring bearing inner ring 3 and the mandrel 2 rivets, and sets on the mandrel 2
The riveting flange 9 of oriented spring bearing fold.
Bearing inner race and 2 both ends of mandrel rivet, and prevent bearing inner race from axially deviating from from mandrel 2.
Further, the clutch outer 6 is interference fitted with 1 inner hole of belt pulley, and the spring bearing outer ring 4 and belt
The sliding of 1 inner hole or transition fit are taken turns, there are gap, skins between 6 end face of clutch outer and 4 end face of spring bearing outer ring
Belt wheel 1 can the centering of axial floating self-alignment with reduce the axially mounted position of belt pulley 1 misalign to belt work influence.
It is enlightenment, through the above description, relevant work with the above-mentioned desirable embodiment according to the utility model
Personnel can carry out various changes and amendments in without departing from the scope of the utility model completely.This item utility model
Technical scope is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (3)
1. a kind of separation preventing mono-directional overrun belt pulley, including belt pulley (1), mandrel (2), needle roller clutch and spring bearing,
The belt pulley (1) is set on the outside of mandrel (2) and is coaxially disposed, and the spring bearing is two, is respectively supported at belt pulley
(1) left and right ends between mandrel (2), each spring bearing include outside spring bearing inner ring (3) and spring bearing
It encloses (4), the needle roller clutch is located between two spring bearings, and passes for the torque between belt pulley (1) and mandrel (2)
It passs;It is characterized by: the needle roller clutch includes clutch inner ring (5), clutch outer (6), needle roller (7) and retainer
(8), the clutch inner ring (5) and clutch outer (6) are coaxially arranged inside and outside, and the retainer (8) is arranged in clutch
It encloses between (5) and clutch outer (6), the needle roller (7) is arranged on retainer (8);The spring bearing inner ring (3) and from
Clutch inner ring (5) is interference fitted with mandrel (2), the outer end face of the spring bearing inner ring (3) and the outer end of the mandrel (2)
Face riveting.
2. separation preventing mono-directional overrun belt pulley as described in claim 1, it is characterised in that: the mandrel (2) is equipped with to branch
Support the riveting flange (9) of bearing fold.
3. separation preventing mono-directional overrun belt pulley as claimed in claim 2, it is characterised in that: the clutch outer (6) and skin
Belt wheel (1) inner hole interference fit, and the spring bearing outer ring (4) and belt pulley (1) inner hole slide or transition fit, it is described from
There are gaps between clutch outer ring (6) end face and spring bearing outer ring (4) end face.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201822205835.7U CN209262201U (en) | 2018-12-26 | 2018-12-26 | A kind of separation preventing mono-directional overrun belt pulley |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201822205835.7U CN209262201U (en) | 2018-12-26 | 2018-12-26 | A kind of separation preventing mono-directional overrun belt pulley |
Publications (1)
Publication Number | Publication Date |
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CN209262201U true CN209262201U (en) | 2019-08-16 |
Family
ID=67561591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201822205835.7U Active CN209262201U (en) | 2018-12-26 | 2018-12-26 | A kind of separation preventing mono-directional overrun belt pulley |
Country Status (1)
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CN (1) | CN209262201U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110410482A (en) * | 2019-08-21 | 2019-11-05 | 宁波市洋通汽车配件有限公司 | Overrunning belt pulley |
-
2018
- 2018-12-26 CN CN201822205835.7U patent/CN209262201U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110410482A (en) * | 2019-08-21 | 2019-11-05 | 宁波市洋通汽车配件有限公司 | Overrunning belt pulley |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address |
Address after: 213000 Longxiang Road, Wujin high tech Development Zone, Changzhou City, Jiangsu Province Patentee after: Jiangsu Nanfang Precision Industry Co.,Ltd. Address before: 213164 No.9, Longxiang Road, Wujin high tech Zone, Changzhou City, Jiangsu Province Patentee before: Jiangsu Nanfang Bearing Co.,Ltd. |
|
CP03 | Change of name, title or address |