CN210068739U - Sliding bearing - Google Patents
Sliding bearing Download PDFInfo
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- CN210068739U CN210068739U CN201920543145.4U CN201920543145U CN210068739U CN 210068739 U CN210068739 U CN 210068739U CN 201920543145 U CN201920543145 U CN 201920543145U CN 210068739 U CN210068739 U CN 210068739U
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- shaft sleeve
- adjusting plate
- plain bearing
- mounting hole
- bearing according
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Abstract
The utility model provides a sliding bearing, belonging to the bearing technical field, comprising a shaft sleeve, wherein a plurality of mounting holes containing four inner walls are evenly arranged in the circumferential direction of the shaft sleeve; the fixing blocks are respectively connected to the two opposite inner walls of the mounting hole in a sealing mode, the opposite surfaces of the fixing blocks are concave arc surfaces, and the other two inner walls of the mounting hole are flat surfaces perpendicular to the axis of the shaft sleeve; the adjusting plate is nested in the mounting hole, four side walls of the adjusting plate are respectively in fit contact with the two concave cambered surfaces of the fixing block and the two flat surfaces of the mounting hole and are arranged in a sliding sealing mode, the two concave cambered surfaces are arranged on the same cylindrical surface, and the axis of the cylindrical surface is parallel to the axis of the shaft sleeve; and the adjusting mechanism adjusts the rotating angle of the adjusting plate so as to change the shape of the oil wedge. The utility model provides a slide bearing has solved the problem that needs frequently to change the change difficulty and the expense that the slide bearing that contains different inclination's oil wedge formation structure caused.
Description
Technical Field
The utility model belongs to the technical field of the bearing, more specifically say, relate to a slide bearing.
Background
The coke oven gas booster fan unit comprises a speed increaser, and when the rotating speed of a fan needs to be adjusted due to the change of process conditions, the speed increaser is at a high rotating speed, so that the equipment is easy to vibrate greatly. The vibration is caused by oil film oscillation generated by the sliding bearings used at the two ends of the speed increaser, and adjustment of various parameters such as viscosity of lubricating oil, heat dissipation of the sliding bearings, oil wedge shape and the like is required for eliminating the oil film oscillation. Wherein the oil wedge that the regulation of oil wedge shape mainly relied on to set up on the slide bearing forms the structure, all need to change the slide bearing that contains the oil wedge formation structure of different inclination or repaiies original slide bearing during the regulation at every turn among the prior art, because of the great and processing difficulty of slide bearing volume and weight of installation here, inefficiency and expense are expensive when can causing the change.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a slide bearing aims at solving the problem that needs frequently to change the change difficulty and the expense that the slide bearing that contains different inclination's oil wedge formation structure caused.
In order to achieve the above object, the utility model adopts the following technical scheme: the sliding bearing comprises a shaft sleeve, wherein a plurality of mounting holes comprising four inner walls are uniformly arranged in the circumferential direction of the shaft sleeve; the fixing blocks are respectively connected to the two opposite inner walls of the mounting hole in a sealing mode, the opposite surfaces of the fixing blocks are concave arc surfaces, and the other two inner walls of the mounting hole are flat surfaces perpendicular to the axis of the shaft sleeve; the adjusting plate is nested in the mounting hole, four side walls of the adjusting plate are respectively in fit contact with the two concave cambered surfaces of the fixed block and the two flat surfaces of the mounting hole and are arranged in a sliding sealing mode, the two concave cambered surfaces are on the same cylindrical surface, and the axis of the cylindrical surface is parallel to the axis of the shaft sleeve; and the adjusting mechanism adjusts the rotating angle of the adjusting plate so as to change the shape of the oil wedge.
Furthermore, the first surface and the second surface, where the two edges on the same side of the two concave arc surfaces are located, are located on two sides of the axis of the cylindrical surface.
Furthermore, the outer wall of the adjusting plate is provided with two limiting rods for preventing the adjusting plate from rotating excessively and sealing failure, and the limiting rods are matched with the fixing blocks.
Further, two opposite flat surfaces of the mounting hole are provided with sealing rubber rings.
Furthermore, the adjusting mechanism comprises an adjusting rod fixedly connected with the outer wall of the adjusting plate and a fixed seat fixedly connected with the shaft sleeve, and the adjusting rod can be fixed relative to the fixed seat after rotating along with the adjusting plate.
Furthermore, an annular hole is formed in the fixing seat, a first screw is inserted in the annular hole, a screw hole used for being connected with the first screw in a matched mode is formed in the adjusting rod, and the movement track of the annular hole coincides with that of the screw hole.
Further, the fixed block is connected with the shaft sleeve through a second screw.
Furthermore, a plurality of oil inlet holes are uniformly formed in the shaft sleeve along the circumferential direction.
Furthermore, the fixing seat is provided with scales for displaying the rotation angle of the adjusting plate.
Furthermore, the fixed block realizes the sealing with the shaft sleeve through an oil-resistant rubber pad.
The utility model provides a slide bearing's beneficial effect lies in: compared with the prior art, the utility model discloses slide bearing is provided with the adjusting plate that can adjust the oil wedge slope degree, has solved the problem that needs frequently to change the change difficulty and the expense that the slide bearing that contains different inclination's oil wedge formation structure caused.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of a general assembly structure of a sliding bearing according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the bushing structure of FIG. 1;
FIG. 4 is a front cross-sectional view of FIG. 2 with the adjustment plate not tilted;
FIG. 5 is a schematic view of the geometry of the sliding surface of the adjusting plate and the concave arc surface of the fixing block in FIG. 4;
FIG. 6 is a front cross-sectional view of FIG. 2;
FIG. 7 is a schematic view of the geometry of the sliding surface of the adjusting plate and the concave arc surface of the fixed block in FIG. 6.
In the figure: 1. a shaft sleeve; 2. a fixed block; 3. a limiting rod; 4. an adjustment plate; 5. an adjusting lever; 6. a first screw; 7. an annular aperture; 8. a fixed seat; 9. a second screw; 10. sealing the rubber ring; 11. a cylindrical surface; 12. a first side; 13. a sliding surface; 14. a concave arc surface; 15. an oil inlet hole; 16. mounting holes; 17. leveling the surface; 18. an inner wall; 19. a second face.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, the sliding bearing of the present invention will now be described. The sliding bearing comprises a shaft sleeve 1, wherein a plurality of mounting holes 16 are uniformly formed in the circumferential direction of the shaft sleeve 1, and each mounting hole 16 comprises four inner walls 18; the two fixed blocks 2 are respectively and fixedly connected to two inner walls 18 opposite to the mounting hole 16, the fixed blocks 2 are hermetically connected with the shaft sleeve 1, the opposite surfaces of the two fixed blocks 2 are both concave arc surfaces 14, and the other two inner walls 18 of the mounting hole 16 are flat surfaces 17 vertical to the axis of the shaft sleeve 1; the adjusting plate 4 is nested in the mounting hole 16, of the four side walls of the adjusting plate 4, two opposite side walls are in fit contact with and slide-sealed with the two concave arc surfaces 14 of the fixed block 2, the other two side walls are in fit contact with and slide-sealed with the two flat surfaces 17 of the mounting hole 16, the two concave arc surfaces 14 are on the same cylindrical surface 11, and the axis of the cylindrical surface 11 is parallel to the axis of the shaft sleeve 1; and the adjusting mechanism adjusts the rotation angle of the adjusting plate 4 so as to change the shape of the oil wedge.
The oil wedge is formed when the rotating shaft rotates at a high speed in the sliding bearing, oil film oscillation can occur when the rotating speed is high, the oil film oscillation can cause violent vibration of the rotating shaft and generate adverse effects on the performance of equipment, and the oil film oscillation is caused by various factors, wherein one of the factors is the shape of the oil wedge.
The shaft sleeve 1 is evenly provided with a plurality of mounting holes 16 in the circumferential direction, and a plurality of adjusting plates 4 can be mounted in the plurality of mounting holes 16 so as to form a plurality of oil wedges, and the stability of the sliding bearing is facilitated by the plurality of oil wedges. The two fixing blocks 2 are matched with one adjusting plate 4, so that the adjusting plate 4 is not separated from the fixing blocks 2 and the installation and the manufacture are facilitated. Two side walls of the adjusting plate 4 are matched with the concave cambered surfaces 14 of the fixing blocks 2, and the other two side walls are matched with two flat surfaces 17 of the shaft sleeve 1, and the two side walls can be in sliding sealing. The two concave cambered surfaces 14 are arranged on the same cylindrical surface 11, so that the adjusting plate 4 can rotate when being matched with the fixed block 2. The axis of the cylindrical surface 11 is parallel to the axis of the shaft sleeve 1, so that the inclination degree of the adjusting plate 4 in the axial direction of the shaft sleeve 1 can be always adjusted, and the shape of the oil wedge can be more reliably controlled. The adjusting mechanism adjusts the rotating angle of the adjusting plate 4 so as to change the shape of the oil wedge, the shape of the oil wedge is changed mainly by the adjusting function of the adjusting mechanism in actual use, and oil film oscillation is eliminated by matching with other factors, wherein the other factors comprise heat dissipation efficiency, lubricating oil viscosity and the like.
The utility model provides a sliding bearing compares with prior art, is provided with adjusting plate 4 that can adjust the oil wedge inclination, has solved the problem that the change difficulty and the expense that need frequently change the sliding bearing that contains different inclination's oil wedge formation structure caused.
As a specific embodiment of the sliding bearing provided by the present invention, please refer to fig. 5 and fig. 7, the first surface 12 and the second surface 19, where two edges of the same side of the concave arc surface 14 are respectively located, are located at two sides of the axis of the cylindrical surface 11.
Two planes can be respectively determined on the same side edges of the two fixed blocks 2, namely a first face 12 and a second face 19, the axis of the cylindrical surface 11 is positioned between the first face 12 and the second face 19, and the adjusting plate 4 can not be separated from the two fixed blocks 2 as long as the sliding surface 13 of the adjusting plate 4 is in contact with the concave cambered surface 14 of the fixed blocks 2. Fig. 5 and 7 show that when the rotation angles of the adjusting plate 4 are different, the adjusting plate 4 and the fixed block 2 are projected on a plane perpendicular to the axis of the shaft sleeve 1, the projection of the cylindrical surface 11 is a geometric circle, the projection of the axis of the cylindrical surface 11 is a point a, the point a is the center of the geometric circle, the projections of the first surface 12 and the second surface 19 are respectively a straight line, and the point a is located between the straight lines formed by the projections of the first surface 12 and the second surface 19. The projections of the two concave cambered surfaces 14 are respectively arcs at one end, and the end point connecting line at the same side of the two arcs is smaller than the diameter of the geometric circle, so that the adjusting plate 4 cannot be separated from the two fixed blocks 2 as long as the sliding surface 13 of the adjusting plate 4 is in contact with the concave cambered surfaces 14 of the fixed blocks 2.
Referring to fig. 2 and 6, the outer wall of the adjusting plate 4 is provided with two limiting rods 3 for preventing the adjusting plate 4 from rotating excessively and failing in sealing, and the limiting rods 3 are matched with the fixing block 2.
The two limiting rods 3 can ensure that the sliding surface 13 of the adjusting plate 4 is always in contact with the concave arc surface 14 of the fixing block 2, and the adjusting plate 4 cannot be separated from the fixing block 2 because the circle center A of the cylindrical surface 11 is located in the first surface 12 formed by four end points of arcs at two ends formed by the cross sections of the concave arc surfaces 14 of the two fixing blocks 2. When the adjusting plate 4 rotates to the limit position, the limiting rod 3 is blocked by the fixing block 2, the adjusting plate 4 cannot rotate continuously, and the sliding surface 13 of the adjusting plate 4 is ensured to be in contact with the concave cambered surface 14 of the fixing block 2 all the time.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, the two opposite flat surfaces 17 of the mounting hole 16 are provided with the sealing rubber ring 10.
Since the fitting of the adjustment plate 4 to the sleeve 1 is a sliding fit, a seal rubber ring 10 is provided in order to prevent leakage of lubricating oil. The sealing rubber ring 10 is arranged on the flat surface 17 of the mounting hole 16 of the shaft sleeve 1, and when the adjusting plate 4 rotates to the limit position, the sealing rubber ring 10 is matched with the adjusting plate 4 to still seal lubricating oil.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, fig. 2, fig. 4 and fig. 6, the adjusting mechanism includes an adjusting rod 5 fixedly connected to the outer wall of the adjusting plate 4 and a fixing seat 8 fixedly connected to the shaft sleeve 1, and the adjusting rod 5 is fixed to the fixing seat 8 after rotating along with the adjusting plate 4.
The use links firmly adjusting plate 4 outer wall's adjusting lever 5 and carries out adjusting plate 4's angular adjustment, and fixing base 8 links firmly axle sleeve 1, when adjusting suitable angle, makes adjusting lever 5 fixed 8 relative fixing base to form the oil wedge of specific slope degree.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, fig. 2, fig. 4 and fig. 6, a circular hole 7 is disposed on the fixing base 8, a first screw 6 is inserted into the circular hole 7, a screw hole for being connected with the first screw 6 in a matching manner is disposed on the adjusting rod 5, and the circular hole 7 coincides with a movement track of the screw hole.
When the adjusting plate 4 needs to be rotated, the operating end of the first screw 6 is loosened, the adjusting plate 4 is rotated, the first screw 6 moves in the annular hole 7, after the adjusting plate 4 is rotated in place, the first screw 6 is screwed, the operating end contacts and clamps the fixing seat 8, and the angle positioning of the adjusting plate 4 is realized by utilizing the friction force between the operating end and the fixing seat 8.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, fig. 2, fig. 4 and fig. 6, the fixing block 2 is connected to the shaft sleeve 1 through a second screw 9.
The use of the second screw 9 to connect the shaft sleeve 1 facilitates the replacement and installation of the fixing block 2.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 and fig. 2, a plurality of oil inlets 15 are uniformly arranged on the shaft sleeve 1 along the circumferential direction.
In order to supply sufficient oil to the sliding bearing and form a required oil film, a plurality of oil inlet holes 15 are provided.
As a specific implementation manner of the embodiment of the present invention, the fixing base 8 is provided with a scale for displaying the rotation angle of the adjusting plate 4.
For the angle consistency of a plurality of adjusting plates 4 and for the convenience of recording and management, scales are arranged, and after the adjusting rod 5 rotates to a certain scale, the adjusting plate 4 rotates by a certain angle.
As a specific embodiment of the utility model provides a, fixed block 2 realizes through resistant oily rubber pad with axle sleeve 1 sealed.
An oil-resistant rubber pad which is matched with the contact surface shape of the fixed block 2 and the shaft sleeve 1 is placed between the contact surfaces of the fixed block 2 and the shaft sleeve 1, so that sealing under the condition that lubricating oil exists is realized.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A plain bearing, comprising:
the shaft sleeve is uniformly provided with a plurality of mounting holes comprising four inner walls in the circumferential direction of the shaft sleeve;
the fixing blocks are respectively connected to the two opposite inner walls of the mounting hole in a sealing mode, the opposite surfaces of the fixing blocks are concave arc surfaces, and the other two inner walls of the mounting hole are flat surfaces perpendicular to the axis of the shaft sleeve;
the adjusting plate is nested in the mounting hole, four side walls of the adjusting plate are respectively in fit contact with the two concave cambered surfaces of the fixed block and the two flat surfaces of the mounting hole and are arranged in a sliding sealing mode, the two concave cambered surfaces are on the same cylindrical surface, and the axis of the cylindrical surface is parallel to the axis of the shaft sleeve;
and the adjusting mechanism adjusts the rotating angle of the adjusting plate so as to change the shape of the oil wedge.
2. A plain bearing according to claim 1, wherein the first and second faces on which the two sides of the two concave cambered surfaces on the same side are respectively located are located on both sides of the axis of the cylindrical surface.
3. A plain bearing according to claim 2, wherein the outer wall of the adjustment plate is provided with two stop rods for preventing the adjustment plate from over-rotation and failing in sealing, the stop rods cooperating with the fixing blocks.
4. A plain bearing according to claim 1, wherein sealing rubber rings are provided on the two opposed flat faces of the mounting hole.
5. The plain bearing according to claim 1, wherein the adjustment mechanism comprises an adjustment rod fixedly attached to the outer wall of the adjustment plate and a fixing base fixedly attached to the sleeve, the adjustment rod being fixed relative to the fixing base after rotation with the adjustment plate.
6. The plain bearing according to claim 5, characterized in that the fixing base is provided with an annular hole, a first screw is inserted into the annular hole, the adjusting rod is provided with a screw hole for fitting connection with the first screw, and the annular hole coincides with a movement locus of the screw hole.
7. A plain bearing according to claim 1, wherein the anchor block is connected to the sleeve by a second screw.
8. A plain bearing according to claim 1, wherein a plurality of oil inlet holes are provided uniformly in the circumferential direction on the sleeve.
9. A plain bearing according to claim 5, wherein the fixing base is provided with a scale indicating the angle of rotation of the adjustment plate.
10. A plain bearing according to claim 1, wherein the fixing block is sealed to the sleeve by an oil-resistant rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920543145.4U CN210068739U (en) | 2019-04-19 | 2019-04-19 | Sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920543145.4U CN210068739U (en) | 2019-04-19 | 2019-04-19 | Sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210068739U true CN210068739U (en) | 2020-02-14 |
Family
ID=69437930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920543145.4U Active CN210068739U (en) | 2019-04-19 | 2019-04-19 | Sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210068739U (en) |
-
2019
- 2019-04-19 CN CN201920543145.4U patent/CN210068739U/en active Active
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