CN211501282U - Rod end joint bearing structure capable of improving swing angle - Google Patents
Rod end joint bearing structure capable of improving swing angle Download PDFInfo
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- CN211501282U CN211501282U CN201922494226.2U CN201922494226U CN211501282U CN 211501282 U CN211501282 U CN 211501282U CN 201922494226 U CN201922494226 U CN 201922494226U CN 211501282 U CN211501282 U CN 211501282U
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- sleeve body
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Abstract
The utility model relates to a joint bearing, in particular to can improve rod end joint bearing structure of pivot angle. The oscillating sleeve comprises a sleeve body installation part, a sleeve body oscillating part and a sleeve body limiting part which are sequentially arranged, wherein the sleeve body installation part extends into the bearing inner ring to be in interference fit with an inner hole of the bearing inner ring; the bearing is characterized in that a plane matched with the side face of the bearing inner ring is arranged on one side, facing the bearing inner ring, of the sleeve body swinging part, the plane of the sleeve body swinging part is connected with the side face of the bearing inner ring, the end face of the outer ring of the sleeve body swinging part is an outer arc surface, the outer arc surface of the sleeve body swinging part and the outer arc surface of the bearing inner ring are located on the same spherical surface, and the outer arc surface of the sleeve body swinging part is connected. The utility model discloses a set up the swing cover, can enlarge the pivot angle in a flexible way as required according to the use, avoided bearing rod end body and joint bearing inner circle again, guaranteed joint bearing's structural strength, reduced manufacturing cost.
Description
Technical Field
The utility model relates to a joint bearing, in particular to can improve rod end joint bearing structure of pivot angle.
Background
The rod end joint bearing is a joint bearing with or arranged at a rod end, and belongs to one of the joint bearings. The joint bearing is a spherical sliding bearing, and the basic model is composed of an inner ring and an outer ring which are provided with spherical sliding spherical contact surfaces. The joint bearing mainly comprises an inner ring with an outer spherical surface and an outer ring with an inner spherical surface, and can bear larger load. According to different types and structures, the bearing can bear radial load, axial load or combined load existing in the radial direction and the axial direction simultaneously. The bearing can generate self-lubrication in operation because the composite material is embedded on the outer spherical surface of the inner ring. The bearing shaft is generally used for swinging motion with low speed, can also perform tilting motion within a certain angle range, and can still normally work when the concentricity of the bearing shaft and the shaft shell hole is large. The self-lubricating joint support is applied to the industries of water conservancy, professional machinery and the like. Because of the large spherical sliding contact area and the large inclination angle of the knuckle bearing, and because most knuckle bearings adopt special processing methods, such as surface phosphating, galvanizing, chrome plating or external sliding surface lining, padding, spraying and the like. Therefore, the bearing has larger load capacity and impact resistance, has the characteristics of corrosion resistance, wear resistance, self-aligning, good lubrication or self-lubricating without pollution of lubricating dirt, and can normally work even if the bearing is installed in a misplaced way. Therefore, the joint bearing is widely used for the low-speed swing motion, the tilt motion, and the rotation motion.
In the prior art, chinese patent No. CN203627526U discloses a larger pivot angle external thread joint bearing with a lubricating rod end, which includes a bearing rod end body, a bearing rod, an inner ring and an outer ring of the joint bearing arranged in the bearing rod end body, wherein the inner ring has an outer spherical surface, the outer ring has an inner spherical surface, and the inner and outer rings are assembled together at a pivot angle greater than 15 degrees. The inner ring of the knuckle bearing is higher than the outer ring, so that the knuckle bearing has a larger swing ratio and can generate a larger swing angle, the product has a larger swing angle than the original product, and the difficulty that the common product cannot be designed and produced with a large swing ratio is overcome.
In order to realize a large swing angle in the technical scheme, the height difference between the end body of the bearing rod and the inner ring of the joint bearing is designed to be extremely large, so that the structural strength of the whole joint bearing is influenced. And the bearing rod end body and the inner ring of the joint bearing need to be redesigned and manufactured, so that the production cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can improve rod end joint bearing structure of pivot angle can enlarge the pivot angle in a flexible way according to the use needs, has avoided the inner circle of the bearing rod end body and joint bearing again, has guaranteed joint bearing's structural strength.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a rod end joint bearing structure capable of improving a swing angle comprises a rod end body, a bearing inner ring, a swing sleeve and a swing rod, wherein the bearing inner ring is arranged in an inner cavity of the rod end body, the end surface, facing the inner cavity of the rod end body, of the bearing inner ring is an outer arc surface, the end surface of the inner cavity of the rod end body is an inner arc surface matched with the outer spherical surface of the rod end body, the front end and the rear end of the outer arc surface of the rod end body respectively extend out of the inner cavity of the bearing inner ring, the swing sleeve comprises a sleeve body installation part, a sleeve body swing part and a sleeve body limiting part which are sequentially arranged, and the sleeve; a plane matched with the side surface of the bearing inner ring is arranged on one side, facing the bearing inner ring, of the sleeve body swinging part, the plane of the sleeve body swinging part is connected with the side surface of the bearing inner ring, the end surface of the outer ring of the sleeve body swinging part is an outer arc surface, the outer arc surface of the sleeve body swinging part and the outer arc surface of the bearing inner ring are positioned on the same spherical surface, and the outer arc surface of the sleeve body swinging part is connected with the outer arc surface of; the diameter of the sleeve body limiting part is gradually increased from one end facing the sleeve body swinging part to the other end; the center of the swing sleeve is provided with an installation inner cavity, a swing rod penetrates through the installation inner cavity of the swing sleeve, and the swing rod and the inner cavity of the swing sleeve are in interference fit.
By adopting the technical scheme, the bearing inner ring is connected with the swing sleeve, and the swing part of the swing sleeve can enter the rod end body, so that the swing angle of the knuckle bearing inner ring is enlarged, the bearing rod end body and the knuckle bearing inner ring are prevented from being restored, the structural strength of the knuckle bearing is ensured, and the production cost is reduced.
Furthermore, a threaded rod body is arranged on the outer surface of the rod end body, and the threaded rod body and the rod end body are integrally formed.
Through adopting above-mentioned technical scheme, the connection installation of joint bearing and other parts can be realized to the screw rod body.
Furthermore, an oil inlet is formed in the outer surface of the rod end body, an oil inlet nozzle can be connected to the oil inlet, a ring of annular groove is formed in the center of the inner ring of the rod end body along the circumferential direction, an oil inlet hole is formed in the rod end body along the radial direction, one end of the oil inlet hole is communicated with the oil inlet, the other end of the oil inlet hole is communicated with the annular groove, and the annular groove is communicated with the outer arc surface.
By adopting the technical scheme, the lubricating oil enters the oil inlet through the oil inlet nozzle, then enters the annular groove along the oil inlet hole, and finally flows onto the outer arc surface of the bearing inner ring, so that the lubrication of the contact end surface of the bearing inner ring and the rod end body is realized.
Further, a bearing outer ring is arranged between the rod end body and the bearing inner ring, the outer ring end surface of the bearing outer ring is an outer arc surface, the outer arc surface of the bearing outer ring is in fit connection with the inner arc surface of the rod end body, the inner ring end surface of the bearing outer ring is an inner arc surface, and the inner arc surface of the bearing outer ring is in fit connection with the outer arc surface of the bearing inner ring.
Through adopting above-mentioned technical scheme, the bearing inner race sets up between bearing inner race and rod end body, can improve joint bearing's life.
Furthermore, a plurality of radially-through outer ring oil inlet holes are formed in the bearing outer ring and communicated with the ring groove, and the outer ring oil inlet holes are communicated with the outer arc surface of the bearing inner ring.
By adopting the technical scheme, the lubricating oil in the ring groove enters the outer arc surface of the bearing inner ring through the outer ring oil inlet hole, so that the lubrication of the contact end surfaces of the bearing inner ring and the bearing outer ring is realized.
Furthermore, the sleeve body mounting part is of a straight cylindrical structure,
by adopting the technical scheme, the sleeve body mounting part can extend into the bearing inner ring to be in interference fit with the inner hole of the bearing inner ring.
Furthermore, the limiting part of the sleeve body is of a cone frustum structure.
By adopting the technical scheme, the sleeve body limiting part of the cone frustum structure can realize reliable positioning in the maximum swing angle state.
Further, the spacing portion of the cover body of the swing cover is provided with a rubber ring mounting groove along the circumferential direction, the rubber ring mounting groove is located on the minimum diameter circumference of the spacing portion of the cover body, and a buffer rubber ring is embedded in the rubber ring mounting groove.
Through adopting above-mentioned technical scheme, through set up the cushion rubber circle at circular cone platform portion surface, can reduce the impact collision of swing cover and joint bearing rod end body lateral wall.
To sum up, the utility model discloses following beneficial effect has:
1. by arranging the swing sleeve, the swing angle can be flexibly enlarged according to the use requirement, the end body of the bearing rod and the inner ring of the joint bearing are prevented from being renewed, the structural strength of the joint bearing is ensured, and the production cost is reduced;
2. the cone frustum part is arranged on the swing sleeve, so that the reliable positioning of the maximum swing angle state can be realized;
3. through set up the cushion rubber circle on the surface of the spacing portion of the cover body, can reduce the impact collision of swing cover and joint bearing rod end body lateral wall.
Drawings
Fig. 1 is a perspective view of a first embodiment of the present invention.
Fig. 2 is a half-sectional view of a first embodiment of the present invention.
Fig. 3 is a perspective view of a second embodiment of the present invention.
Fig. 4 is a half-sectional view of a second embodiment of the present invention.
Fig. 5 is a structural diagram of the present invention in the maximum swing angle state.
In the figure, 1, a rod end body; 2. a threaded rod body; 3. a bearing outer race; 4. an oil inlet; 5. an oil inlet hole; 6. a ring groove; 7. an outer ring oil inlet hole; 8. a bearing inner race; 9. a swing lever; 10. a sheath mounting part; 11. a sleeve body swing part; 12. a sleeve body limiting part; 13. a buffer rubber ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the utility model mainly comprises a rod end body 1, a bearing inner ring 8, a swing sleeve and a swing rod 9.
In the first embodiment shown in fig. 1 and 2, a bearing inner ring 8 is disposed in the inner cavity of the rod end body 1, the end surface of the bearing inner ring 8 facing the inner cavity of the rod end body 1 is an outer arc surface, and the end surface of the inner cavity of the rod end body 1 is an inner arc surface matched with the outer spherical surface of the rod end body 1. The front and rear ends of the outer arc surface of the rod end body 1 respectively extend out of the inner cavity of the bearing inner ring 8.
In the first embodiment shown in fig. 1 and 2, a threaded rod body 2 is provided on the outer surface of the rod end body 1, and the threaded rod body 2 is integrally formed with the rod end body 1.
In the first embodiment shown in fig. 2, in order to ensure the lubrication of the contact end surfaces of the rod end body 1 and the bearing inner ring 8, the outer surface of the rod end body 1 is provided with an oil inlet 4, and an oil inlet nozzle can be connected to the oil inlet 4. A circle of ring groove 6 is formed in the center of the inner ring of the rod end body 1 along the circumferential direction, an oil inlet 5 is formed in the rod end body 1 along the radial direction, one end of the oil inlet 5 is communicated with the oil inlet 4, the other end of the oil inlet 5 is communicated with the ring groove 6, and the ring groove 6 is communicated with the outer arc surface of the bearing inner ring 8.
As shown in fig. 1 and 2, in the first embodiment, the oscillating sleeve includes a sleeve mounting portion 10, a sleeve oscillating portion 11 and a sleeve limiting portion 12, which are sequentially disposed, the sleeve mounting portion 10 is a straight cylindrical structure, and the sleeve mounting portion 10 extends into the bearing inner ring 8 to be in interference fit with an inner hole of the bearing inner ring 8. The side, facing the bearing inner ring 8, of the sleeve body swinging portion 11 is provided with a plane matched with the side face of the bearing inner ring 8, the plane of the sleeve body swinging portion 11 is connected with the side face of the bearing inner ring 8, the end face of the outer ring of the sleeve body swinging portion 11 is an outer arc surface, the outer arc surface of the sleeve body swinging portion 11 and the outer arc surface of the bearing inner ring 8 are located on the same spherical surface, and the outer arc surface of the sleeve body swinging portion 11 is connected with the outer arc surface of. The sleeve body limiting part 12 is of a truncated cone structure, and the diameter of the sleeve body limiting part 12 gradually increases from one end facing the sleeve body swinging part 11 to the other end.
In the first embodiment shown in fig. 1 and 2, an installation cavity is formed in the center of the swing sleeve, a swing rod 9 penetrates through the installation cavity of the swing sleeve, and the swing rod 9 and the swing sleeve cavity are in interference fit.
In the second embodiment shown in fig. 3 and 4, in order to increase the service life of the spherical plain bearing, the bearing outer race 3 is provided between the rod end body 1 and the bearing inner race 8. The end face of the outer ring of the bearing outer ring 3 is an outer arc face, the outer arc face of the bearing outer ring 3 is in fit connection with the inner arc face of the rod end body 1, the end face of the inner ring of the bearing outer ring 3 is an inner arc face, and the inner arc face of the bearing outer ring 3 is in fit connection with the outer arc face of the bearing inner ring 8.
As shown in fig. 4, the bearing outer ring 3 is provided with a plurality of radially-through outer ring oil inlets 7, the outer ring oil inlets 7 are communicated with the ring groove 6, and the outer ring oil inlets 7 are communicated with the outer arc surface of the bearing inner ring 8.
In the third embodiment shown in fig. 5, when the joint bearing is in the maximum pivot angle state, in order to avoid reducing impact collision between the swing sleeve and the end body side wall of the joint bearing rod, a rubber ring mounting groove is arranged on the sleeve body limiting portion 12 of the swing sleeve along the circumferential direction, the rubber ring mounting groove is located on the minimum diameter circumference of the sleeve body limiting portion 12, a buffer rubber ring 13 is embedded in the rubber ring mounting groove, and buffering is achieved between the swing sleeve and the end body side wall of the joint bearing rod through the buffer rubber ring.
The utility model discloses a theory of operation is: under the normal use condition, the oscillating bar is connected to the bearing inner ring, and the bearing inner ring rotates to reach the maximum oscillating angle state after the whole outer arc surface completely enters the inner arc surface of the rod end body. When the swing angle needs to be enlarged, the swing sleeve is directly connected to the bearing inner ring, and the swing part of the swing sleeve can enter the rod end body, so that the swing angle of the bearing inner ring is enlarged, the bearing rod end body and the joint bearing inner ring are prevented from being restored, the structural strength of the joint bearing is ensured, and the production cost is reduced.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a can improve rod end joint bearing structure of pivot angle, includes rod end body (1), bearing inner circle (8), swing cover and swinging arms (9), be equipped with bearing inner circle (8) in rod end body (1) inner chamber, bearing inner circle (8) are outer arc surface towards rod end body (1) inner chamber terminal surface, rod end body (1) inner chamber terminal surface be with the interior arc surface that the ectosphere of rod end body (1) coincide, the inner chamber of bearing inner circle (8) is stretched out respectively to rod end body (1) outer arc surface front and back end, its characterized in that: the oscillating sleeve comprises a sleeve body mounting part (10), a sleeve body oscillating part (11) and a sleeve body limiting part (12) which are sequentially arranged, and the sleeve body mounting part (10) extends into the bearing inner ring (8) to be in interference fit with an inner hole of the bearing inner ring (8); a plane matched with the side surface of the bearing inner ring (8) is arranged on one side, facing the bearing inner ring (8), of the sleeve body swinging part (11), the plane of the sleeve body swinging part (11) is connected with the side surface of the bearing inner ring (8), the end surface of the outer ring of the sleeve body swinging part (11) is an outer arc surface, the outer arc surface of the sleeve body swinging part (11) and the outer arc surface of the bearing inner ring (8) are positioned on the same spherical surface, and the outer arc surface of the sleeve body swinging part (11) is connected with the outer arc surface of the bearing inner ring (8; the diameter of the sleeve body limiting part (12) is gradually increased from one end facing the sleeve body swinging part (11) to the other end; an installation inner cavity is formed in the center of the swing sleeve, a swing rod (9) penetrates through the installation inner cavity of the swing sleeve, and the swing rod (9) and the inner cavity of the swing sleeve are in interference fit.
2. A rod end joint bearing structure capable of improving a swing angle according to claim 1, wherein: the outer surface of the rod end body (1) is provided with a threaded rod body (2), and the threaded rod body (2) and the rod end body (1) are integrally formed.
3. A rod end joint bearing structure capable of improving a swing angle according to claim 1, wherein: the outer surface of the rod end body (1) is provided with an oil inlet (4), an oil inlet nozzle can be connected to the oil inlet (4), the center of the inner ring of the rod end body (1) is provided with a ring groove (6) along the circumferential direction, an oil inlet hole (5) is arranged in the rod end body (1) along the radial direction, one end of the oil inlet hole (5) is communicated with the oil inlet (4), the other end of the oil inlet hole is communicated with the ring groove (6), and the ring groove (6) is communicated with the outer arc surface of the bearing inner ring (8).
4. A rod end joint bearing structure capable of improving a swing angle according to claim 3, wherein: the rod end body (1) and the bearing inner ring (8) are arranged between the bearing outer ring (3), the outer ring end face of the bearing outer ring (3) is an outer arc face, the outer arc face of the bearing outer ring (3) is connected with the inner arc face of the rod end body (1) in an inosculating mode, the inner ring end face of the bearing outer ring (3) is an inner arc face, and the inner arc face of the bearing outer ring (3) is connected with the outer arc face of the bearing inner ring (8) in an inosculating mode.
5. A rod end joint bearing structure capable of improving a swing angle according to claim 4, wherein: the bearing inner ring is characterized in that a plurality of radially-through outer ring oil inlets (7) are formed in the bearing outer ring (3), the outer ring oil inlets (7) are communicated with the ring groove (6), and the outer ring oil inlets (7) are communicated with the outer arc surface of the bearing inner ring (8).
6. A rod end joint bearing structure capable of improving a swing angle according to claim 1, wherein: the sleeve body installation part (10) is of a straight cylindrical structure.
7. A rod end joint bearing structure capable of improving a swing angle according to claim 1, wherein: the sleeve body limiting part (12) is of a truncated cone structure.
8. A rod end joint bearing structure capable of improving a swing angle according to any one of claims 1 to 7, wherein: the rubber ring mounting groove is arranged on the sleeve body limiting part (12) of the swing sleeve along the circumferential direction, the rubber ring mounting groove is located on the minimum diameter circumference of the sleeve body limiting part (12), and the rubber ring mounting groove is internally embedded with the buffer rubber ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922494226.2U CN211501282U (en) | 2019-12-31 | 2019-12-31 | Rod end joint bearing structure capable of improving swing angle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922494226.2U CN211501282U (en) | 2019-12-31 | 2019-12-31 | Rod end joint bearing structure capable of improving swing angle |
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| Publication Number | Publication Date |
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| CN211501282U true CN211501282U (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922494226.2U Active CN211501282U (en) | 2019-12-31 | 2019-12-31 | Rod end joint bearing structure capable of improving swing angle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294437A (en) * | 2021-05-12 | 2021-08-24 | 柳州市融安县瑞草堂农业科技有限公司 | Integrated swing bearing |
-
2019
- 2019-12-31 CN CN201922494226.2U patent/CN211501282U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294437A (en) * | 2021-05-12 | 2021-08-24 | 柳州市融安县瑞草堂农业科技有限公司 | Integrated swing bearing |
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