CN211343720U - Self-lubricating radial spherical plain bearing - Google Patents
Self-lubricating radial spherical plain bearing Download PDFInfo
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- CN211343720U CN211343720U CN201922281658.5U CN201922281658U CN211343720U CN 211343720 U CN211343720 U CN 211343720U CN 201922281658 U CN201922281658 U CN 201922281658U CN 211343720 U CN211343720 U CN 211343720U
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Abstract
The utility model relates to a joint bearing field, specific self-lubricating radial joint bearing that says so. Including first outer lane, second outer lane and inner circle, first outer lane and second outer lane can be dismantled and be connected, follow and keep away from the tip that first outer lane and second outer lane link to each other the position in first outer lane and be equipped with first annular step, follow and keep away from the tip that first outer lane and second outer lane link to each other the position in the second outer lane and be equipped with second annular step, be equipped with the stand wear and tear anti impact material layer that supplies the periphery sliding fit of inner circle between first annular step and second annular step. The utility model discloses coefficient of friction between bearing inner race and the outer lane is low, and the self-lubricating effect is showing, does benefit to the wide application of joint bearing in precision machinery, and outer lane processing and assembly precision are high, do benefit to and improve bearing life.
Description
Technical Field
The utility model relates to a joint bearing field, specific self-lubricating radial joint bearing that says so.
Background
The joint bearing is also called spherical sliding bearing, its structure is simple, mainly composed of outer ring and inner ring. The working surface of the outer ring is an inner spherical surface, the working surface of the inner ring is an outer spherical surface, the two spherical surfaces are matched with each other and in sliding contact, can rotate and swing within a certain angle range, and can bear larger load. At present, the industry commonly adopts a double-half outer ring and an integral inner ring structure. The two half outer rings of the structure can be axially separated and are fixed by a plurality of countersunk head bolts on the end surface to form an integrated radial spherical plain bearing. The structure has strong bearing capacity and can bear radial and axial loads at the same time. And has certain concentricity, and can still work normally when the shaft and the shaft hole are not concentric.
The common self-lubricating radial spherical plain bearing in the industry at present is that a PTFE composite material coating is sprayed on the sliding surface, the structure is suitable for a low-speed and heavy-load mechanical structure, but the manufacturing process is complex, the cost is high, the coating is thin and is easy to fall off under a certain impact load, and the service life of the bearing is short. One is a common PTFE-inlaid braided fabric structure used in the mass production of joint bearings, and the structure has the advantages of wear resistance, low friction, good lubricating property, low rotating speed and weak bearing capacity. Self-lubricating oscillating bearings in the industry are affected by complex factors such as lubricating materials and working conditions, the secondary processing energy of the lubricating materials on the matching surface is poor, the rotating precision of the self-lubricating oscillating bearings is low, and the self-lubricating oscillating bearings are not widely applied to precision machinery.
In addition, because the outer ring is of a split structure, the precision is difficult to guarantee in the processing and assembling process of the outer ring. The joint bearing of the type generally has the current situations of low precision grade, large clearance and poor resetting precision in the industry. And if the two outer rings are not tightly pressed or the concentricity is not good when the two outer rings are installed and fixed, the phenomenon that the gap between the inner ring and the outer ring is too large or the two hemispherical surfaces are staggered can be caused, the phenomenon of unbalance loading or blocking of the bearing occurs, and the service life of the bearing is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a self-lubricating radial spherical plain bearing, the coefficient of friction between bearing inner race and the outer lane is low, and the self-lubricating effect is showing, does benefit to the wide application of spherical plain bearing in precision machinery, and outer lane processing and assembly precision are high, do benefit to improvement bearing life.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a self-lubricating is spherical plain bearing entad, including first outer lane, second outer lane and inner circle, first outer lane and second outer lane can be dismantled and be connected, the tip of following and keeping away from first outer lane and second outer lane continuous position in first outer lane is equipped with first annular step, the tip of following and keeping away from first outer lane and second outer lane continuous position in the second outer lane is equipped with second annular step, be equipped with the stand wear and tear shock-resistant material layer that supplies the periphery sliding fit of inner circle between first annular step and second annular step.
Preferably, the wear-resistant and impact-resistant material layer is ZCuAl10Fe3Mn 2.
Preferably, the wear-resistant and impact-resistant material layer is fixed on the inner edges of the first outer ring and the second outer ring in a surfacing mode.
Preferably, the outer ring border ring is sleeved on the periphery of the first outer ring and the second outer ring and is positioned at the connecting part of the first outer ring and the second outer ring.
Preferably, the outer ring trim ring is installed in an interference fit with the first outer ring and the second outer ring.
Preferably, the inner edge of the outer ring border ring is provided with guide protrusions distributed along the axial direction of the outer ring border ring, the first outer ring and the second outer ring are respectively provided with guide grooves matched with the guide protrusions, and the guide grooves on the first outer ring and the second outer ring are continuously distributed.
Advantageous effects
The utility model discloses well outer lane interior surface design has annular step, and the outer lane interior surface is located the partial build-up welding copper between two annular steps, has stand wear and tear, anticorrosive, shock resistance, coefficient of friction is low, self-lubricating effect is showing. Therefore, the inner working spherical surface of the outer ring has strong secondary processing capability, the manufacturing precision of the radial spherical plain bearing is ensured, and the characteristics of the spherical plain bearing are suitable for precision machinery. The novel steel wire rope has the advantages of simple structure, low cost, easiness in processing, firmness in combination, strong bearing capacity, impact resistance and low friction coefficient.
The utility model discloses an among the preferred embodiment, accessible outer lane border circle guarantees the precision of first outer lane and second outer lane in processing and assembling process to effectively avoid the outer lane of components of a whole that can function independently structure to lose and work sphere dislocation problem at processing, assembly, when fixed precision, increased the reliability of bearing, improved the rotational accuracy and the precision that resets of bearing greatly.
Drawings
Fig. 1 is a schematic sectional structure of the present invention;
the labels in the figure are: 1. the anti-abrasion anti-impact material comprises a first outer ring, 2, a second outer ring, 3, a first annular step, 4, an inner ring, 5, an outer ring edge embedding ring, 6, a guide protrusion, 7, a guide groove, 8, a second annular step, 9 and an abrasion-resistant anti-impact material layer.
Detailed Description
As shown in fig. 1, the self-lubricating radial spherical plain bearing of the present invention comprises a first outer ring 1, a second outer ring 2 and an inner ring 4. The first outer ring 1 and the second outer ring 2 can be separated or connected along the axial direction, and the inner edges of the first outer ring 1 and the second outer ring 2 form a working surface for the outer edge of the inner ring 4 to be matched in a rotating mode.
The utility model discloses the tip of following and keeping away from the continuous position of first outer lane 1 and second outer lane 2 in first outer lane 1 is equipped with first annular step 3, and the tip of following and keeping away from the continuous position of first outer lane 1 and second outer lane 2 in second outer lane 2 is equipped with second annular step 8. The first annular step 3 and the second annular step 8 are flush with the end faces of the second outer ring and the second outer ring 2 respectively, and a wear-resistant and impact-resistant material layer 9 for sliding fit of the periphery of the inner ring 4 is arranged between the first annular step 3 and the second annular step 8. The material of the wear-resistant impact-resistant material layer 9 is ZCuAl10Fe3Mn2, and the wear-resistant impact-resistant material layer is arranged on the inner surfaces of the first outer ring 1 and the second outer ring 2 in a surfacing mode. The wear-resistant impact-resistant material layer 9 has the characteristics of wear resistance, corrosion resistance, impact resistance, low friction coefficient and obvious self-lubricating effect, so that the secondary processing performance of the lubricating material on the matching surface is enhanced, and the rotation precision of the self-lubricating joint bearing is improved.
In this embodiment, an outer ring trim ring 5 is fitted around the outer peripheries of the first outer ring 1 and the second outer ring 2 and at a connection portion between the first outer ring 1 and the second outer ring 2. The outer ring border ring 5 is installed with the cooperation of first outer lane 1 and second outer lane 2 with the interference mode to realize that the outer ring border ring 5 and the high accuracy tight fit of first outer lane 1 and second outer lane 2 make outer ring border ring 5 become bearing an organic whole. In the specific application, the peripheries and the end faces of the first outer ring 1 and the second outer ring 2 are machined and then are assembled into the outer ring trim ring 5, the first outer ring 1 and the second outer ring 2 are fastened through bolts, and then the inner spherical surfaces of the first outer ring 1 and the second outer ring 2 are subjected to surfacing welding, wear-resistant and impact-resistant material layers 9 and grinding machining. The outer lane is dismantled after finishing processing and is inlayed limit circle 5, and the inner circle 4 of packing into closes to overlap and packs the back and pack into outer lane and inlay limit circle 5 and accomplish promptly the utility model discloses an assembly.
In order to facilitate the high-precision assembly of the first outer ring 1, the second outer ring 2 and the outer ring border ring 5, the deviation caused by different assembly angles is avoided. The inner edge of the outer ring border ring 5 is provided with guide protrusions 6 distributed along the axial direction of the outer ring border ring 5, guide grooves 7 matched with the guide protrusions 6 are respectively arranged on the first outer ring 1 and the second outer ring 2, and the guide grooves 7 on the first outer ring 1 and the second outer ring 2 are continuously distributed. The assembly angle between the first outer ring 1 and the second outer ring 2 is defined by the guide projections 6 and the guide grooves 7, thereby maintaining the accuracy of the first outer ring 1 and the second outer ring 2 in machining and assembly. The axial installation position of the outer ring border ring 5 on the first outer ring 1 and the second outer ring 2 can be realized by the end of the outer ring border ring 5 and the end flush of the first outer ring 1 or the second outer ring 2.
Claims (6)
1. A self-lubricating radial spherical plain bearing is characterized in that: including first outer lane (1), second outer lane (2) and inner circle (4), first outer lane (1) and second outer lane (2) can be dismantled and connect, the tip of following and keeping away from first outer lane (1) and second outer lane (2) continuous position in first outer lane (1) is equipped with first annular step (3), the tip of following and keeping away from first outer lane (1) and second outer lane (2) continuous position in second outer lane (2) is equipped with second annular step (8), be equipped with between first annular step (3) and second annular step (8) and supply the stand-by and-wear resistant shock resistance material layer (9) of periphery sliding fit of inner circle (4).
2. A self-lubricating radial spherical plain bearing according to claim 1, wherein: the material of the wear-resistant and impact-resistant material layer (9) is ZCuAl10Fe3Mn 2.
3. A self-lubricating radial spherical plain bearing according to claim 2, wherein: the wear-resistant impact-resistant material layer (9) is fixed on the inner edges of the first outer ring (1) and the second outer ring (2) in a surfacing mode.
4. A self-lubricating radial spherical plain bearing according to claim 1, wherein: an outer ring edging ring (5) is sleeved on the periphery of the first outer ring (1) and the second outer ring (2) and positioned at the connecting part of the first outer ring (1) and the second outer ring (2).
5. A self-lubricating radial spherical plain bearing according to claim 4, wherein: the outer ring border ring (5) is installed in an interference manner in a matching manner with the first outer ring (1) and the second outer ring (2).
6. A self-lubricating radial spherical plain bearing according to claim 4, wherein: the guide protrusion (6) distributed along the axial direction of the outer ring border ring (5) is arranged in the outer ring border ring (5), guide grooves (7) matched with the guide protrusion (6) are respectively formed in the first outer ring (1) and the second outer ring (2), and the guide grooves (7) in the first outer ring (1) and the second outer ring (2) are continuously distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922281658.5U CN211343720U (en) | 2019-12-18 | 2019-12-18 | Self-lubricating radial spherical plain bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922281658.5U CN211343720U (en) | 2019-12-18 | 2019-12-18 | Self-lubricating radial spherical plain bearing |
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| Publication Number | Publication Date |
|---|---|
| CN211343720U true CN211343720U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922281658.5U Active CN211343720U (en) | 2019-12-18 | 2019-12-18 | Self-lubricating radial spherical plain bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757252A (en) * | 2021-09-18 | 2021-12-07 | 沈阳建筑大学 | Outer ring split type full-ceramic joint bearing |
| CN116696940A (en) * | 2023-08-02 | 2023-09-05 | 中达(河北)轴承制造有限公司 | Outer spherical bearing with seat for limiting inclination angle |
-
2019
- 2019-12-18 CN CN201922281658.5U patent/CN211343720U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757252A (en) * | 2021-09-18 | 2021-12-07 | 沈阳建筑大学 | Outer ring split type full-ceramic joint bearing |
| CN116696940A (en) * | 2023-08-02 | 2023-09-05 | 中达(河北)轴承制造有限公司 | Outer spherical bearing with seat for limiting inclination angle |
| CN116696940B (en) * | 2023-08-02 | 2023-10-24 | 中达(河北)轴承制造有限公司 | Outer spherical bearing with seat for limiting inclination angle |
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