CN211852499U - Slewing bearing suitable for large radial load - Google Patents
Slewing bearing suitable for large radial load Download PDFInfo
- Publication number
- CN211852499U CN211852499U CN202020524240.2U CN202020524240U CN211852499U CN 211852499 U CN211852499 U CN 211852499U CN 202020524240 U CN202020524240 U CN 202020524240U CN 211852499 U CN211852499 U CN 211852499U
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- fixedly connected
- inner ring
- nut
- outer ring
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Abstract
The utility model discloses a slewing bearing suitable for large radial load, which comprises an inner ring, an outer ring, a first fitting piece, a second fitting piece and a driving gear, wherein the inner ring and the outer ring are mutually sleeved and rotatably connected, the first fitting piece is fixedly connected on the upper surface of the inner ring, the second fitting piece is fixedly connected on the lower surface of the outer ring, the inner ring and the outer ring are respectively provided with a first mounting hole and a second mounting hole, and the lower surface of the inner ring and the upper surface of the outer ring are respectively provided with a first stop groove and a second stop groove, the service life of the fastening screw and the fastening bolt is prolonged, and the radial bearing capacity of the product is improved.
Description
Technical Field
The utility model relates to a slewing bearing technical field, concretely relates to slewing bearing suitable for big radial load.
Background
The slewing bearing product is widely applied in modern industry, is called as a joint of a machine, is an important transmission part which is necessary for a machine which needs to do relative rotation motion between two objects and simultaneously needs to bear axial force, radial force and tipping moment, and is widely applied in the industries of ship equipment, engineering machinery, light industry machinery, metallurgical machinery, medical machinery, industrial machinery and the like along with the rapid development of the mechanical industry.
Slewing bearing product mainly includes that the inner circle and the outer lane of registrating rotation connection each other and the ball of setting between inner circle and outer lane, two fitting pieces are connected respectively to interior outer lane, connect through the bolt between interior outer lane and the fitting piece, when the weight of fitting piece is great, like large-scale cutting machine and ferris wheel etc. this moment, the bolt of connecting can receive great radial force owing to the gravity that receives the fitting piece, thereby the life of bolt reduces, make the corresponding reduction of life-span and the stability of slewing bearing product.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a slewing bearing suitable for big radial load, the utility model discloses a realize through following technical scheme.
A slewing bearing suitable for large radial load comprises an inner ring, an outer ring, a first matching piece, a second matching piece and a driving gear;
the inner ring and the outer ring are sleeved with each other and rotationally connected, the first matching piece is fixedly connected to the upper surface of the inner ring, and the second matching piece is fixedly connected to the lower surface of the outer ring;
the outer wall of the inner ring is provided with an annular first mounting groove, the inner ring is also provided with first mounting holes uniformly in the circumference, the inner ring is fixedly connected with a first fitting piece through a fastening screw in the first mounting hole, a first spigot groove is formed in the position, corresponding to the first mounting hole, of the lower surface of the inner ring, the head of the fastening screw is fixedly connected with a first nut, and the first nut is positioned in the first spigot groove;
the inner wall of outer lane is equipped with annular second mounting groove, is used for the arrangement of ball in the space that second mounting groove and first mounting groove surround, and the circumference evenly is equipped with the second mounting hole on the outer lane, and outer lane and fitting piece are through the fastening bolt rigid coupling in the second mounting hole, fastening bolt includes screw rod and nut, the head rigid coupling of screw rod has the second nut, the position of the corresponding second mounting hole of upper surface of outer lane is equipped with annular second tang groove, the second nut is located second tang inslot, the nut is located the lower surface of fitting piece two, and the outer wall of outer lane still rigid coupling has driven gear, driven gear and driving gear meshing.
Furthermore, a shaft rod is fixedly connected to the center of the driving gear and is connected with the output shaft through a coupling.
Further, the shaft is connected with the driving gear through a spline.
Further, outer wall upper portion of inner circle is equipped with annular first seal groove, the rigid coupling has annular first sealing strip in the first seal groove, the outside overlap joint of first sealing strip is at the upper surface of outer lane, the inner wall lower part of outer lane is equipped with annular second seal groove, the rigid coupling has annular second sealing strip in the second seal groove, the inboard of second sealing strip and the lower surface overlap joint of inner circle.
Further, the first sealing tape and the second sealing tape are both W17 type sealing tapes.
The beneficial effects of the utility model are that, this device has been put through the first mounting hole and the second mounting hole at inner circle and outer lane and has been turned over one first tang groove and second tang groove respectively many cars, reduce the net weight of product, and is lighter, first nut and second nut on complex fastening screw and the fastening bolt can effectually unload most radial force through the cooperation in first tang groove and second tang groove, fastening screw and fastening bolt's life has been improved, the radial bearing capacity of product has been improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some examples of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1: the utility model discloses a section view of a slewing bearing suitable for large radial load;
FIG. 2: the structure of the inner ring of the utility model is shown schematically;
FIG. 3: the structure of the outer ring of the utility model is shown schematically;
FIG. 4: the structure of the shaft lever of the utility model is shown schematically;
FIG. 5: the structure schematic diagram of the fastening screw of the utility model;
FIG. 6: fastening bolt's structural schematic.
The reference numbers are as follows:
1-inner ring, 101-first mounting groove, 102-first mounting hole, 103-fastening screw, 1031-first nut, 104-first stop groove, 2-outer ring, 201-second mounting groove, 202-second mounting hole, 203-fastening bolt, 2031-screw, 2032-nut, 2033-second nut, 204-second stop groove, 205-driven gear, 3-first mating piece, 4-second mating piece, 5-driving gear, 501-shaft lever, 502-coupler, 503-output shaft, 601-first sealing groove, 602-first sealing tape, 603-second sealing tape, 604-second sealing tape.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-6, a slewing bearing suitable for large radial load comprises an inner ring 1, an outer ring 2, a first matching piece 3, a second matching piece 4 and a driving gear 5;
the inner ring 1 and the outer ring 2 are sleeved with each other and rotationally connected, the first matching piece 3 is fixedly connected to the upper surface of the inner ring 1, and the second matching piece 4 is fixedly connected to the lower surface of the outer ring 2;
the outer wall of the inner ring 1 is provided with an annular first mounting groove 101, the inner ring 1 is further provided with first mounting holes 102 uniformly in the circumference, the inner ring 1 and the first fitting piece 3 are fixedly connected through fastening screws 103 in the first mounting holes 102, a first spigot groove 104 is formed in the position, corresponding to the first mounting holes 102, of the lower surface of the inner ring 1, a first nut 1031 is fixedly connected to the head of each fastening screw 103, and the first nut 1031 is located in the first spigot groove 104;
the inner wall of outer lane 2 is equipped with annular second mounting groove 201, the installation that is used for the ball in the space that second mounting groove 201 and first mounting groove 101 enclose, the circumference evenly is equipped with second mounting hole 202 on the outer lane 2, outer lane 2 and fitting piece two 4 pass through the fastening bolt 203 rigid coupling in the second mounting hole 202, fastening bolt 203 includes screw rod 2031 and nut 2032, the head rigid coupling of screw rod 2031 has second nut 2033, the corresponding second mounting hole 202's of upper surface of outer lane 2 position is equipped with annular second tang groove 204, second nut 2033 is located second tang groove 204, nut 2 is located fitting piece two 4's lower surface, the outer wall of outer lane 2 still rigid coupling has driven gear 205, driven gear 205 meshes with driving gear 5.
A shaft 501 is fixed to the center of the drive gear 5, and the shaft 501 is connected to an output shaft 503 through a coupling 502.
The shaft 501 is connected to the pinion gear 5 by a spline 504.
An annular first sealing groove 601 is arranged on the upper portion of the outer wall of the inner ring 1, an annular first sealing strip 602 is fixedly connected in the first sealing groove 601, the outer side of the first sealing strip 602 is overlapped on the upper surface of the outer ring 2, an annular second sealing groove 603 is arranged on the lower portion of the inner wall of the outer ring 2, an annular second sealing strip 604 is fixedly connected in the second sealing groove 603, and the inner side of the second sealing strip 604 is overlapped with the lower surface of the inner ring 1.
Both the first sealing band 602 and the second sealing band 604 are of the type W17.
Principle of operation
In use, the first fitting member 3 is fixed on the upper surface of the inner ring 1 by the fastening screw 103, the first nut 1031 of the fastening screw 103 is positioned in the first notch groove 104, the second fitting member 4 is fixed on the lower surface of the outer ring 2 by the fastening bolt 203, and the second nut 2033 of the fastening bolt 203 is positioned in the second notch groove 204.
The arrangement of the first stop groove 104 and the second stop groove 204 can reduce the net weight of the inner ring 1 and the outer ring 2 on one hand, so that the net weight of the whole slewing bearing product is smaller, meanwhile, the width of the first stop groove 104 is consistent with the maximum radial length of the first nut 1031, the width of the second stop groove 204 is consistent with the maximum radial length of the second nut 2033, when the first fitting piece 3 and the second fitting piece 4 are large-sized cutting machines and ferris wheels with large weight, the fastening screw 103 and the fastening bolt 203 for installation can be subjected to large radial force, at this time, due to the arrangement of the first stop groove 104 and the second stop groove 204, the radial force acts on the positions of the first nut 1031 and the second nut 2033, so that the radial force applied to the fastening screw 103 and the screw 2031 is reduced, and the service life of the fastening screw 103 and the screw 2031 is prolonged.
The provision of the first and second sealing bands 602, 604 also improves the sealing of the ball mounting.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A slewing bearing suitable for large radial loads is characterized in that: the gear comprises an inner ring (1), an outer ring (2), a first matching piece (3), a second matching piece (4) and a driving gear (5);
the inner ring (1) and the outer ring (2) are sleeved with each other and rotationally connected, the first matching piece (3) is fixedly connected to the upper surface of the inner ring (1), and the second matching piece (4) is fixedly connected to the lower surface of the outer ring (2);
the outer wall of the inner ring (1) is provided with an annular first mounting groove (101), the inner ring (1) is further provided with first mounting holes (102) uniformly in the circumference, the inner ring (1) and the first fitting piece (3) are fixedly connected through fastening screws (103) in the first mounting holes (102), a first spigot groove (104) is formed in the position, corresponding to the first mounting holes (102), of the lower surface of the inner ring (1), a first nut (1031) is fixedly connected to the head of each fastening screw (103), and the first nut (1031) is located in the first spigot groove (104);
the inner wall of the outer ring (2) is provided with an annular second mounting groove (201), the second mounting groove (201) and the first mounting groove (101) are surrounded to form a space for arranging balls, second mounting holes (202) are uniformly formed in the upper circumference of the outer ring (2), the outer ring (2) and a fitting piece II (4) are fixedly connected through fastening bolts (203) in the second mounting holes (202), each fastening bolt (203) comprises a screw rod (2031) and a nut (2032), a second nut (2033) is fixedly connected to the head of each screw rod (2031), an annular second stop groove (204) is formed in the position, corresponding to the second mounting holes (202), of the upper surface of the outer ring (2), the second nut (2033) is located in the second stop groove (204), the nut (2032) is located on the lower surface of the fitting piece II (4), and a driven gear (205) is fixedly connected to the outer wall of the outer ring (2), the driven gear (205) is meshed with the driving gear (5).
2. A slewing bearing suitable for large radial loads according to claim 1, wherein: the center of the driving gear (5) is fixedly connected with a shaft lever (501), and the shaft lever (501) is connected with an output shaft (503) through a coupling (502).
3. A slewing bearing suitable for large radial loads according to claim 2, wherein: the shaft lever (501) is connected with the driving gear (5) through a spline.
4. A slewing bearing suitable for large radial loads according to claim 1, wherein: the outer wall upper portion of inner circle (1) is equipped with annular first seal groove (601), the rigid coupling has annular first sealing band (602) in first seal groove (601), the outside overlap joint of first sealing band (602) is at the upper surface of outer lane (2), the inner wall lower part of outer lane (2) is equipped with annular second seal groove (603), the rigid coupling has annular second sealing band (604) in second seal groove (603), the inboard lower surface overlap joint with inner circle (1) of second sealing band (604).
5. A slewing bearing suitable for large radial loads according to claim 4, wherein: the first sealing tape (602) and the second sealing tape (604) are both of type W17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020524240.2U CN211852499U (en) | 2020-04-11 | 2020-04-11 | Slewing bearing suitable for large radial load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020524240.2U CN211852499U (en) | 2020-04-11 | 2020-04-11 | Slewing bearing suitable for large radial load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211852499U true CN211852499U (en) | 2020-11-03 |
Family
ID=73144216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020524240.2U Expired - Fee Related CN211852499U (en) | 2020-04-11 | 2020-04-11 | Slewing bearing suitable for large radial load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211852499U (en) |
-
2020
- 2020-04-11 CN CN202020524240.2U patent/CN211852499U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201103 Termination date: 20210411 |