CN112128227B - Articulated slewing bearing device - Google Patents
Articulated slewing bearing device Download PDFInfo
- Publication number
- CN112128227B CN112128227B CN202010843909.9A CN202010843909A CN112128227B CN 112128227 B CN112128227 B CN 112128227B CN 202010843909 A CN202010843909 A CN 202010843909A CN 112128227 B CN112128227 B CN 112128227B
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- Prior art keywords
- ring
- slewing bearing
- outer ring
- bearing device
- sealing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/10—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for axial load mainly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
- F16C33/7806—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for spherical roller bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a hinged slewing bearing device, which comprises a structure seat and a slewing bearing arranged in the structure seat, wherein the slewing bearing comprises an inner ring and an outer ring which are coaxially nested, arc-shaped ring grooves which are relatively distributed are arranged between the inner ring and the outer ring along the circumferential direction, and a plurality of balls are arranged in the arc-shaped ring grooves; and symmetrical and coaxial connecting shafts are arranged on two sides of the outer ring and hinged on the structure seat. The novel bearing has the advantages of simple structure, high reliability, strong adaptability, large bearing capacity and long service life.
Description
Technical Field
The invention relates to a slewing bearing, in particular to a hinged slewing bearing device capable of realizing small-amplitude swinging.
Background
As one type of bearing, a slewing bearing is generally used in a case where it is necessary to detect a rotation angle and receive an axial load. When the existing slewing bearing is installed and used, the connection between the inner ring and the outer ring of the existing slewing bearing and the corresponding part usually adopts a fixed mode, and the structural characteristic enables the slewing bearing to only perform relative rotation of the inner ring and the outer ring, so that the use requirement that the slewing bearing needs to perform small-amplitude swinging cannot be met; and the existing slewing bearing has the problems of complex structure, small bearing capacity and poor reliability.
Disclosure of Invention
The invention aims to provide an articulated slewing bearing device which has the advantages of simple structure, high reliability, strong adaptability, large bearing capacity and long service life.
In order to solve the problems in the prior art, the invention provides an articulated slewing bearing device which comprises a structure seat and a slewing bearing arranged in the structure seat, wherein the slewing bearing comprises an inner ring and an outer ring which are coaxially nested, arc-shaped ring grooves which are oppositely distributed are arranged between the inner ring and the outer ring along the circumferential direction, and a plurality of balls are arranged in the arc-shaped ring grooves; and symmetrical and coaxial connecting shafts are arranged on two sides of the outer ring and hinged on the structural seat.
Further, the present invention provides a hinge type slewing bearing device, wherein an outer diameter of an inner ring on an upper side of the balls is smaller than an outer diameter of an inner ring on a lower side of the balls, and an inner diameter of an outer ring on the upper side of the balls is smaller than an inner diameter of an outer ring on the lower side of the balls.
Further, the invention provides a hinged type slewing bearing device, wherein a first sealing groove is formed in the outer wall of the lower half part of the inner ring, a first sealing ring is installed in the first sealing groove, and the outer edge of the first sealing ring extends out of the first sealing groove and is attached to the bottom of the outer ring.
Further, the outer edge of the first sealing ring is higher than the inner edge, the inner half part of the first sealing ring in the width direction is equal in thickness, and the thickness of the outer half part of the first sealing ring in the width direction is gradually reduced from inside to outside.
Furthermore, the hinged type slewing bearing device is characterized in that a second sealing groove is formed in the inner wall of the upper half part of the outer ring, and the second sealing groove is used for mounting a second sealing ring.
Further, the invention provides an articulated slewing bearing device, wherein a gear ring is arranged at the bottom of the inner ring and used for measuring the relative rotation angle between the inner ring and the outer ring.
Further, the invention provides an articulated slewing bearing device, wherein the top of the inner ring is provided with a plurality of connecting holes distributed along the circumferential direction.
Furthermore, the hinged type slewing bearing device is characterized in that a pressing block is fixed on the structure seat through a screw, semicircular grooves which are distributed oppositely are formed between the pressing block and the structure seat, a bearing is installed on the connecting shaft, and the bearing is clamped between the pressing block and the structure seat.
Further, the invention relates to a hinged slewing bearing device, wherein the outer edge of the outer ring is of a regular octagonal structure, and the connecting shaft and the outer ring are integrally processed and manufactured.
Further, the invention relates to an articulated slewing bearing device, wherein the structural seat is a rectangular frame structure.
Compared with the prior art, the hinged slewing bearing device has the following advantages: the invention sets a structure seat and a slewing bearing in the structure seat, so that the slewing bearing is provided with an inner ring and an outer ring which are coaxially nested, arc-shaped ring grooves which are relatively distributed are arranged between the inner ring and the outer ring along the circumferential direction, and a plurality of balls are arranged in the arc-shaped ring grooves; and symmetrical and coaxial connecting shafts are arranged on two sides of the outer ring, and the connecting shafts are hinged on the structure seat. Therefore, the hinged type slewing bearing device is simple in structure, high in reliability, strong in adaptability, large in bearing capacity and long in service life. In practical application, the structure seat is fixed on the supporting piece, the target piece is fixed on the inner ring of the slewing bearing, the inner ring and the outer ring can rotate relatively through the arc-shaped ring groove and the balls between the inner ring and the outer ring of the slewing bearing in the rotating process of the target piece, the slewing bearing can integrally swing in a small amplitude through the connecting shafts on the two sides of the outer ring, and the functionality, the adaptability and the practicability of the slewing bearing device are enhanced.
An articulated slewing bearing device according to the present invention will be described in further detail with reference to the embodiments shown in the drawings.
Drawings
Fig. 1 is a perspective view of an articulated slewing bearing arrangement according to the invention;
fig. 2 is a front view of a slewing bearing in an articulated slewing bearing arrangement according to the invention;
fig. 3 is a top view of a slewing bearing in an articulated slewing bearing arrangement according to the invention;
fig. 4 is a perspective view of a slewing bearing in an articulated slewing bearing device according to the invention;
fig. 5 is a view from a-a in fig. 3.
Detailed Description
First, it should be noted that, the directional terms such as up, down, left, right, front, rear, etc. described in the present invention are only described with reference to the accompanying drawings for easy understanding, and do not limit the technical solution and the claimed scope of the present invention.
As shown in fig. 1 to 5, an embodiment of an articulated slewing bearing arrangement according to the invention comprises a structure base 1 and a slewing bearing 2 in the structure base 1. The slewing bearing 2 is provided with an inner ring 21 and an outer ring 22 which are coaxially nested, arc-shaped ring grooves which are oppositely distributed are arranged between the inner ring 21 and the outer ring 22 along the circumferential direction, and a plurality of balls 23 are arranged in the arc-shaped ring grooves. And symmetrical and coaxial connecting shafts 24 are arranged at two sides of the outer ring 22, and the connecting shafts 24 are hinged on the structure base 1. The hinged slewing bearing device with simple structure, high reliability, strong adaptability, large bearing capacity and long service life is formed by the structural arrangement. In practical application, the structure seat 1 is fixed on a support member, the target member is fixed on the inner ring 21 of the slewing bearing 2, the inner ring and the outer ring can relatively rotate through the arc-shaped annular groove and the balls 23 between the inner ring and the outer ring of the slewing bearing 2 in the rotating process of the target member, the whole slewing bearing can swing in a small amplitude through the connecting shafts 24 on two sides of the outer ring 22, and the functionality, the adaptability and the practicability of the slewing bearing device are enhanced. It should be noted that the above-mentioned support and target are only defined for convenience of description, and in practical application refer to the components that are connected with the structure seat 1 and the inner ring 21 correspondingly.
As an optimized scheme, the present embodiment adopts the following matching manner for the inner ring 21 and the outer ring 22: the outer diameter of the inner ring 21 on the upper side of the balls 23 is made smaller than the outer diameter of the inner ring 21 on the lower side of the balls 23, and the inner diameter of the outer ring 22 on the upper side of the balls 23 is made smaller than the inner diameter of the outer ring 22 on the lower side of the balls 23. This arrangement enhances the structural stability and load-bearing capacity of the slewing bearing by offsetting the gap between the upper half portions and the gap between the lower half portions of the inner ring 21 and the outer ring 22 from each other and from the center of the balls 23. Meanwhile, in the present embodiment, a first seal groove is provided on the outer wall of the lower half portion of the inner ring 21, a first seal ring 25 is installed in the first seal groove, and the outer edge of the first seal ring 25 extends out of the first seal groove and is attached to the bottom of the outer ring 22. The arrangement improves the sealing property between the lower half parts of the inner ring 21 and the outer ring 22, can effectively prevent dust from entering gaps and balls between the inner ring and the outer ring, ensures the action stability and reliability of the slewing bearing, and prolongs the service life. In the present embodiment, the first seal ring 25 is configured as follows: the outer edge of the first sealing ring 25 is higher than the inner edge, and the inner half part of the first sealing ring 25 along the width direction is made to be equal in thickness, so that the thickness of the outer half part of the first sealing ring 25 along the width direction is gradually decreased from inside to outside. The first sealing ring 25 with the structure has the advantages of convenience in installation and strong adaptability, and the outer edge of the first sealing ring can be always attached to the bottom of the outer ring 22 in the relative rotation process of the inner ring and the outer ring, so that the sealing reliability is enhanced.
In the present invention, the second seal groove 221 is provided on the inner wall of the upper half portion of the outer ring 22, and when the present invention is used, a second seal ring (not shown) is installed in the second seal groove 221, and the inner edge of the second seal ring is attached to a target member, so that the sealing performance between the inner ring 21 and the upper half portion of the outer ring 22 can be ensured. In order to facilitate detection of the relative rotational angle between the inner ring 21 and the outer ring 22, the present embodiment provides a ring gear 211 at the bottom of the inner ring 21. To facilitate the coupling operation, the present embodiment provides a plurality of coupling holes 212 distributed in the circumferential direction at the top of the inner ring 21.
As a specific embodiment, the present invention provides that the following hinge structure is adopted between the connecting shaft 24 and the structure base 1: a pressing block 3 is fixed on the structure base 1 through a screw, and semicircular grooves which are distributed oppositely are arranged between the pressing block 3 and the structure base 1; the bearing 4 is arranged on the connecting shaft 24, and the bearing 4 is clamped between the pressing block 3 and the structure base 1. The hinge mode has the advantages of simple structure, convenient disassembly and assembly and stable swinging. As a specific implementation mode, the invention adopts a regular octagonal structure on the outer edge of the outer ring 22, and integrally processes and manufactures the connecting shaft 24 and the outer ring 22, so as to simplify the preparation process and enhance the structural strength; similarly, the present embodiment adopts a rectangular frame structure for the structure base 1. It should be pointed out that the structure of the structural seat 1 and the outer ring 22 is not limited to the above list, but that other structures capable of performing equivalent or similar functions may be adopted
The above examples are only for describing the preferred embodiments of the present invention, and do not limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solutions of the present invention should fall within the scope of the invention defined by the claims without departing from the design concept of the present invention.
Claims (8)
1. A hinged type slewing bearing device comprises a structural seat (1) with a rectangular frame structure and a slewing bearing (2) arranged in the structural seat (1), and is characterized in that the slewing bearing (2) comprises an inner ring (21) and an outer ring (22) which are coaxially nested, arc-shaped ring grooves which are distributed oppositely are formed between the inner ring (21) and the outer ring (22) along the circumferential direction, and a plurality of balls (23) are arranged in the arc-shaped ring grooves; two sides of the outer ring (22) are provided with symmetrical and coaxial connecting shafts (24), and the connecting shafts (24) are hinged on the structure seat (1); the outer diameter of the inner ring (21) on the upper side of the balls (23) is smaller than that of the inner ring (21) on the lower side of the balls (23), and the inner diameter of the outer ring (22) on the upper side of the balls (23) is smaller than that of the outer ring (22) on the lower side of the balls (23).
2. An articulated slewing bearing device according to claim 1, wherein the outer wall of the lower half part of the inner ring (21) is provided with a first sealing groove, a first sealing ring (25) is arranged in the first sealing groove, and the outer edge of the first sealing ring (25) extends out of the first sealing groove and is attached to the bottom of the outer ring (22).
3. An articulated slewing bearing device according to claim 2, wherein the outer edge of the first sealing ring (25) is higher than the inner edge, the inner half of the first sealing ring (25) in the width direction is of equal thickness, and the thickness of the outer half of the first sealing ring (25) in the width direction decreases from inside to outside.
4. An articulated slewing bearing according to any one of claims 1-3, wherein the inner wall of the upper half of the outer ring (22) is provided with a second sealing groove (221), and the second sealing groove (221) is used for mounting a second sealing ring.
5. An articulated slewing bearing according to any one of claims 1-3, characterized in that the bottom of the inner ring (21) is provided with a gear ring (211), which gear ring (211) is intended to measure the relative angle of rotation between the inner ring (21) and the outer ring (22).
6. An articulated slewing bearing device according to any one of claims 1-3, characterized in that the top of the inner ring (21) is provided with a plurality of coupling holes (212) distributed circumferentially.
7. An articulated slewing bearing device according to any one of claims 1-3, characterised in that the structural seat (1) is provided with a pressure block (3) by means of screws, that between the pressure block (3) and the structural seat (1) are arranged semi-circular grooves distributed in opposite directions, that the connecting shaft (24) is provided with bearings (4), and that the bearings (4) are clamped between the pressure block (3) and the structural seat (1).
8. An articulated slewing bearing device according to any one of claims 1-3, wherein the outer rim of the outer ring (22) is of regular octagonal configuration, and the connecting shaft (24) is integrally formed with the outer ring (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010843909.9A CN112128227B (en) | 2020-08-20 | 2020-08-20 | Articulated slewing bearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010843909.9A CN112128227B (en) | 2020-08-20 | 2020-08-20 | Articulated slewing bearing device |
Publications (2)
| Publication Number | Publication Date |
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| CN112128227A CN112128227A (en) | 2020-12-25 |
| CN112128227B true CN112128227B (en) | 2022-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010843909.9A Active CN112128227B (en) | 2020-08-20 | 2020-08-20 | Articulated slewing bearing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN112128227B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6217031B1 (en) * | 1998-05-20 | 2001-04-17 | Rks S.A. | Sealing arrangement for a rolling bearing |
| CN202746401U (en) * | 2012-07-02 | 2013-02-20 | 华锐风电科技(集团)股份有限公司 | Bearing base and main shaft system with center adjusting function |
| CN203527148U (en) * | 2013-09-17 | 2014-04-09 | 江苏新瑞重工科技有限公司 | Turntable bearing turntable with integrated angular measurement system |
| CN203702846U (en) * | 2014-02-19 | 2014-07-09 | 慈溪市永胜轴承有限公司 | Oscillating bar bearing |
| CN204628316U (en) * | 2015-05-15 | 2015-09-09 | 湖州杭轴特大轴承有限公司 | A kind of sealed type pivoting support bearing being suitable for hot environment |
| CN105257691A (en) * | 2015-11-16 | 2016-01-20 | 耒阳新达微科技有限公司 | Rotating bearing |
| CN205503757U (en) * | 2016-04-13 | 2016-08-24 | 马鞍山方圆回转支承股份有限公司 | Axis angle displacement intelligence slewing bearing |
| CN207879847U (en) * | 2018-02-05 | 2018-09-18 | 洛阳北方玻璃技术股份有限公司 | A kind of cross-axle universal shaft bearing |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2975903B2 (en) * | 1997-02-03 | 1999-11-10 | 株式会社アンテックス | Swivel bearing |
| JP2010127319A (en) * | 2008-11-25 | 2010-06-10 | Antex Corp | Revolving seat bearing |
| CN208845574U (en) * | 2018-09-12 | 2019-05-10 | 南京回转支承机械有限公司 | A kind of pivoting support |
-
2020
- 2020-08-20 CN CN202010843909.9A patent/CN112128227B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6217031B1 (en) * | 1998-05-20 | 2001-04-17 | Rks S.A. | Sealing arrangement for a rolling bearing |
| CN202746401U (en) * | 2012-07-02 | 2013-02-20 | 华锐风电科技(集团)股份有限公司 | Bearing base and main shaft system with center adjusting function |
| CN203527148U (en) * | 2013-09-17 | 2014-04-09 | 江苏新瑞重工科技有限公司 | Turntable bearing turntable with integrated angular measurement system |
| CN203702846U (en) * | 2014-02-19 | 2014-07-09 | 慈溪市永胜轴承有限公司 | Oscillating bar bearing |
| CN204628316U (en) * | 2015-05-15 | 2015-09-09 | 湖州杭轴特大轴承有限公司 | A kind of sealed type pivoting support bearing being suitable for hot environment |
| CN105257691A (en) * | 2015-11-16 | 2016-01-20 | 耒阳新达微科技有限公司 | Rotating bearing |
| CN205503757U (en) * | 2016-04-13 | 2016-08-24 | 马鞍山方圆回转支承股份有限公司 | Axis angle displacement intelligence slewing bearing |
| CN207879847U (en) * | 2018-02-05 | 2018-09-18 | 洛阳北方玻璃技术股份有限公司 | A kind of cross-axle universal shaft bearing |
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| Publication number | Publication date |
|---|---|
| CN112128227A (en) | 2020-12-25 |
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