CN209654436U - A kind of unilateral bearing - Google Patents
A kind of unilateral bearing Download PDFInfo
- Publication number
- CN209654436U CN209654436U CN201920379520.6U CN201920379520U CN209654436U CN 209654436 U CN209654436 U CN 209654436U CN 201920379520 U CN201920379520 U CN 201920379520U CN 209654436 U CN209654436 U CN 209654436U
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- CN
- China
- Prior art keywords
- retainer
- ring
- unilateral bearing
- annular groove
- needle roller
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- 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.)
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Abstract
The utility model relates to a kind of unilateral bearings, it includes outer ring, inner ring, needle roller and retainer, several retainer locating slots are evenly distributed on the excircle of the inner ring, the raceway contacted with needle roller is equipped between the retainer locating slot, the interior circle center is less than interior circle center the distance between to raceway minimum point to the distance between retainer locating slot slot bottom, and the retainer locating piece being adapted to retainer locating slot is extended on the inner periphery of the retainer.With when installing retainer, retainer locating piece is not easy to be installed in the slope of raceway the utility model, facilitates unilateral bearing to realize self-locking, improves the effect of unilateral bearing practicability.
Description
Technical field
The utility model relates to technical field of bearings, more particularly, to a kind of unilateral bearing.
Background technique
Unilateral bearing is a kind of bearing that can be freely rotated, and lock in one direction in the other directions.It is single
To in the metal shell of bearing, comprising many roller bearings, needle roller or balls, and the shape of its raceway makes it can only be to a side
To rolling, and very big resistance can be generated in the other directions.
Bearing in the prior art includes outer ring, inner ring, retainer and needle roller, is evenly equipped on the outer circumference surface of inner ring several
Raceway is equipped with retainer locating slot between raceway and raceway, retainer is easy wrongly installed into raceway during installation, causes
Unilateral bearing can not achieve self-locking, influence the adaptation of unilateral bearing.
Utility model content
The purpose of the utility model is to provide a kind of unilateral bearing, it is accurate to have the advantages that install retainer.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of unilateral bearing, including outer ring, inner ring, needle roller and retainer,
It is evenly distributed with several retainer locating slots on the excircle of the inner ring, is equipped between the retainer locating slot
The raceway contacted with needle roller, the distance between described interior circle center to retainer locating slot slot bottom be less than interior circle center to raceway most
The distance between low spot is extended with the retainer locating piece being adapted to retainer locating slot on the inner periphery of the retainer.
Further: the rib of the retainer is equipped with several concave points along its circumferential direction, and the concave point and retainer position
Block is arranged in a one-to-one correspondence.
Further: the raceway includes slope and arc-shaped limit end；
When needle roller is located at arc-shaped limit end, there are gaps between needle roller and outer ring；
When needle roller is located at slope, needle roller is abutted with outer ring.
Further: one end of the inner ring extends vertically the baffle ring abutted with cycle surface outward.
Further: the lateral wall of the inner ring is equipped with first annular groove, and the first annular groove is located at inner ring
One end far from baffle ring, the inner sidewall of the outer ring are equipped with second annular groove, the first annular groove and the second annular
Groove is oppositely arranged, and is embedded with sealing ring in the first annular groove and second annular groove.
Further: the side that the baffle ring is contacted with outer ring is equipped with rubber sheet gasket.
The beneficial effects of the utility model are: deepened the groove depth of retainer locating slot, while by retainer locating piece
Corresponding change is made in increasing, so that retainer locating piece is not easy to be installed in the slope of raceway when retainer is installed, it is convenient
Unilateral bearing realization is self-locking, improves the practicability of unilateral bearing.The rib of retainer is equipped with concave point, when retainer being facilitated to assemble
Recognize face and recognizes a little, meanwhile, concave point can also be used as anchor point when press fitting.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawing.
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is in the utility model for embodying the connection relationship diagram between retainer and concave point；
Fig. 3 is in the utility model for embodying the connection relationship diagram between rib and rubber sheet gasket；
Fig. 4 is the enlarged drawing in the portion A in Fig. 3.
In figure, 1, outer ring；11, second annular groove；2, inner ring；21, retainer locating slot；22, slope；23, arc limits
Position end；24, first annular groove；25, rib；26, rubber sheet gasket；3, retainer；31, retainer locating piece；32, concave point；4,
Needle roller；5, sealing ring.
Specific embodiment
The utility model is further described presently in connection with attached drawing.These attached drawings are simplified schematic diagram only to show
Meaning mode illustrates the basic structure of the utility model, therefore it only shows composition related with the utility model.
Such as Fig. 1, a kind of unilateral bearing including outer ring 1, the inner ring being arranged in outer ring 12, is arranged in outer ring 1 and inner ring 2
Between retainer 3 and be arranged in retainer 3 and along the needle roller 4 of 3 even circumferential of retainer distribution.
Such as Fig. 1, inner ring 2 is evenly distributed with several retainer locating slots 21 on the excircle of retainer 3, and retainer is fixed
The raceway contacted with needle roller 4 is equipped between the slot 21 of position.Raceway includes slope 22 and the arc-shaped limit that is connected with 22 least significant end of slope
End 23.2 center of inner ring is less than 2 center of inner ring between 22 least significant end of slope to the distance between 21 slot bottom of retainer locating slot
Distance.Retainer 3 is extended with the retainer locating piece 31 being adapted to retainer locating slot 21 on the inner periphery of inner ring 2.When
When needle roller 4 is located at arc-shaped limit end 23, there are gaps between needle roller 4 and outer ring 1；When needle roller 4 is located at inclined-plane, needle roller 4 and outer
Circle 1 abuts.The utility model has deepened the groove depth of retainer locating slot 21, when so that retainer 3 being installed, retainer locating piece 31
It is not easy to be installed in the slope 22 of raceway, facilitates unilateral bearing to realize self-locking, improve the practicability of unilateral bearing.
Such as Fig. 2, in order to further increase the installation accuracy of retainer locating piece 31, in the circumferential direction of the rib 25 of retainer 3
Several concave points 32 are equipped with, and concave point 32 is arranged in a one-to-one correspondence with retainer locating piece 31.Concave point 32 is used as retainer locating piece
31 label facilitates retainer 3 to recognize face when assembling and recognize a little, meanwhile, concave point 32 can also be used as anchor point when press fitting.
Such as Fig. 3, the baffle ring 25 for extending vertically and abutting with 1 end face of outer ring that moves outward of inner ring 2, and baffle ring 25 are close to outer
The side of circle 1 is equipped with rubber sheet gasket 26.Baffle ring 25 makes outer ring 1 be not easy to move axially, and improves the cooperation essence of outer ring 1 and inner ring 2
Degree, rubber sheet gasket 26 make the rigid contact between baffle ring 25 and outer ring 1 become flexible contact, the abrasion of outer ring 1 are reduced, to outer ring
1 is protected, and the service life of outer ring 1 is extended.
Such as Fig. 4, the lateral wall of inner ring 2 is equipped with first annular groove 24, and to be located at inner ring 2 separate for first annular groove 24
One end of baffle ring 25.The inner sidewall of outer ring 1 is equipped with second annular groove 11, and first annular groove 24 and second annular groove
11 are oppositely arranged, and are embedded with sealing ring 5 in first annular groove 24 and second annular groove 11.Sealing ring 5 has unilateral bearing
There is preferable leakproofness, reduces the inside that extraneous impurity enters unilateral bearing, extend the service life of unilateral bearing, improve
The working efficiency of unilateral bearing.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (6)
1. a kind of unilateral bearing, including outer ring (1), inner ring (2), needle roller (4) and retainer (3), it is characterised in that:
Several retainer locating slots (21), the retainer locating slot (21) are evenly distributed on the excircle of the inner ring (2)
Between be equipped with the raceway that contacts with needle roller (4), inner ring (2) center is small to the distance between retainer locating slot (21) slot bottom
It is positioned in being extended on the distance between inner ring (2) center to raceway minimum point, the inner periphery of the retainer (3) with retainer
The retainer locating piece (31) of slot (21) adaptation.
2. a kind of unilateral bearing according to claim 1, it is characterised in that:
The rib of the retainer (3) is equipped with several concave points (32) along its circumferential direction, the concave point (32) and retainer locating piece
(31) it is arranged in a one-to-one correspondence.
3. a kind of unilateral bearing according to claim 1, it is characterised in that:
The raceway includes slope (22) and arc-shaped limit end (23)；
When needle roller (4) is located at arc-shaped limit end (23), there are gaps between needle roller (4) and outer ring (1)；
When needle roller (4) is located at slope (22), needle roller (4) is abutted with outer ring (1).
4. a kind of unilateral bearing according to claim 1, it is characterised in that:
One end of the inner ring (2) extends vertically the baffle ring (25) abutted with outer ring (1) end face outward.
5. a kind of unilateral bearing according to claim 4, it is characterised in that:
The lateral wall of the inner ring (2) is equipped with first annular groove (24), and the first annular groove (24) is located at inner ring (2)
The inner sidewall of one end far from baffle ring (25), the outer ring (1) is equipped with second annular groove (11), the first annular groove
(24) it is oppositely arranged with second annular groove (11), is embedded in the first annular groove (24) and second annular groove (11)
Sealing ring (5).
6. a kind of unilateral bearing according to claim 5, it is characterised in that:
The side that the baffle ring (25) contacts with outer ring (1) is equipped with rubber sheet gasket (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920379520.6U CN209654436U (en) | 2019-03-22 | 2019-03-22 | A kind of unilateral bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920379520.6U CN209654436U (en) | 2019-03-22 | 2019-03-22 | A kind of unilateral bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209654436U true CN209654436U (en) | 2019-11-19 |
Family
ID=68528024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920379520.6U Active CN209654436U (en) | 2019-03-22 | 2019-03-22 | A kind of unilateral bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209654436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118149025A (en) * | 2024-05-10 | 2024-06-07 | 宁波东煌轴承有限公司 | One-way bearing |
-
2019
- 2019-03-22 CN CN201920379520.6U patent/CN209654436U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118149025A (en) * | 2024-05-10 | 2024-06-07 | 宁波东煌轴承有限公司 | One-way bearing |
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| GR01 | Patent grant |