CN109210335B - High-precision rotary supporting device with limited rotation angle - Google Patents
High-precision rotary supporting device with limited rotation angle Download PDFInfo
- Publication number
- CN109210335B CN109210335B CN201711254187.8A CN201711254187A CN109210335B CN 109210335 B CN109210335 B CN 109210335B CN 201711254187 A CN201711254187 A CN 201711254187A CN 109210335 B CN109210335 B CN 109210335B
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- CN
- China
- Prior art keywords
- moving coil
- supporting seat
- limited
- precision
- supporting device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
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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
- F16C21/00—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
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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
- F16C2202/00—Solid materials defined by their properties
- F16C2202/50—Lubricating properties
- F16C2202/52—Graphite
Abstract
The invention relates to a high-precision rotation supporting device with a limited rotation angle, which can be applied to the fields of aviation, aerospace, ships, weapons, mechanical automation, inertial navigation test and the like. The invention comprises a supporting seat, a moving coil, a cylindrical roller and a graphite block, adopts a form of combining rolling friction and sliding friction, and realizes +/-30-degree pitching rotation motion on the premise of large load in a limited installation space through the combination of an upper arc-shaped guide rail surface, a lower arc-shaped guide rail surface, a roller, a steel ball, a sliding friction pair and the like. The invention can bear larger load, can achieve higher movement precision and simultaneously saves installation space.
Description
Technical Field
The invention relates to a bearing rotating device, in particular to a high-precision rotating supporting device with a limited rotating angle.
Background
The conventional ground test turntable equipment is relatively mature in the aspect of main technical indexes, but in special cases, the large-load and high-precision limited-angle rotary motion needs to be realized in a limited space, and the technical problem is not solved well.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provide a high-precision arc-shaped rotating support device with a limited rotation angle, which is applied to a ground test turntable. The method can bear larger load, can achieve higher movement precision and simultaneously saves installation space.
In order to achieve the technical purpose, the high-precision rotation supporting device with the limited rotation angle comprises a supporting seat, a moving coil, cylindrical rollers and a graphite block, wherein the supporting seat is fixed, the moving coil bearing load performs rotation motion in a certain angle range around the arc center of the supporting seat under the driving of external force, the upper arc surface of the moving coil performs rolling friction with the supporting seat through two rows of cylindrical rollers, the lower arc surface of the moving coil performs sliding friction with the supporting seat under the self-lubricating action of the cylindrical graphite block embedded in the lower surface of the moving coil, and the cylindrical rollers are limited by a retainer and keep a certain motion range.
Preferably, the movable coil is rotated within an angular range of ± 30 °.
The invention realizes the rotation support of a limited corner under the condition of large load in a narrow space by combining the rolling friction and the sliding friction, the rolling friction ensures that the movement between the moving coil and the supporting seat is smooth by matching the cylindrical roller by controlling the radius difference of the arc surface between the arc surface on the moving coil and the supporting seat, and the sliding friction plays a certain damping role to prevent the damage caused by large overturning moment. The cylindrical graphite block plays a role of solid self-lubrication, so that the friction pair can not be seized under the action of large pressure. The invention can bear larger load, can achieve higher movement precision and simultaneously saves installation space.
Drawings
Fig. 1 is a schematic structural view showing a limited-angle high-precision rotary support device according to the present invention.
Detailed Description
In order that the invention may be more clearly understood, the following detailed description of the embodiments of the invention is given with reference to the accompanying drawings and examples.
Fig. 1 is a schematic structural view showing a limited-angle high-precision rotary support device according to the present invention. The invention relates to a high-precision rotary supporting device with a limited corner, which comprises a supporting seat 1, a moving coil 3, cylindrical rollers 4 and graphite blocks 2, wherein the supporting seat 1 is fixed, the moving coil 3 bearing load performs rotary motion in a certain angle range around the arc center of the supporting seat 1 under the driving of external force, the upper arc surface of the moving coil 3 performs rolling friction with the supporting seat 1 through two rows of cylindrical rollers 4, the lower arc surface of the moving coil 3 performs sliding friction with the supporting seat 1 under the self-lubricating action of the cylindrical graphite blocks 2 embedded on the lower surface of the moving coil 3, the cylindrical rollers 4 are limited by a retainer 5 and keep a certain motion range, and the motion range is +/-30 degrees.
The angle range over which the moving coil 3 rotates may be ± 30 °.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (1)
1. A high-precision rotary supporting device with a limited corner comprises a supporting seat (1), a moving coil (3), cylindrical rollers (4) and graphite blocks (2), wherein the supporting seat (1) is fixed, the moving coil (3) bearing load performs rotary motion in a certain angle range around the arc center of the supporting seat (1) under the driving of external force, the upper arc surface of the moving coil (3) performs rolling friction with the supporting seat (1) through two rows of cylindrical rollers (4), the lower arc surface of the moving coil (3) performs sliding friction with the supporting seat (1) under the self-lubricating action of the cylindrical graphite blocks (2) embedded in the lower surface of the moving coil (3), and the cylindrical rollers (4) are limited by a retainer (5) and keep a certain motion range;
the rotating angle range of the moving coil (3) is +/-30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711254187.8A CN109210335B (en) | 2017-12-03 | 2017-12-03 | High-precision rotary supporting device with limited rotation angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711254187.8A CN109210335B (en) | 2017-12-03 | 2017-12-03 | High-precision rotary supporting device with limited rotation angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109210335A CN109210335A (en) | 2019-01-15 |
| CN109210335B true CN109210335B (en) | 2020-07-17 |
Family
ID=64991869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711254187.8A Active CN109210335B (en) | 2017-12-03 | 2017-12-03 | High-precision rotary supporting device with limited rotation angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109210335B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1225351A2 (en) * | 1999-11-22 | 2002-07-24 | Minebea Co., Ltd. | A free spherical ball bearing |
| CN202689754U (en) * | 2012-07-13 | 2013-01-23 | 哈尔滨飞机工业集团有限责任公司 | Arc sliding hinge |
| CN103883188A (en) * | 2012-12-24 | 2014-06-25 | 富泰华工业（深圳）有限公司 | Hinge |
| CN105020548A (en) * | 2014-04-24 | 2015-11-04 | 欧达尔医疗系统有限责任公司 | Rotatable connection device with limitation of the rotational angle |
| CN205401423U (en) * | 2016-03-02 | 2016-07-27 | 张雪 | Crescent single -row cylindrical roller bearing |
-
2017
- 2017-12-03 CN CN201711254187.8A patent/CN109210335B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1225351A2 (en) * | 1999-11-22 | 2002-07-24 | Minebea Co., Ltd. | A free spherical ball bearing |
| CN202689754U (en) * | 2012-07-13 | 2013-01-23 | 哈尔滨飞机工业集团有限责任公司 | Arc sliding hinge |
| CN103883188A (en) * | 2012-12-24 | 2014-06-25 | 富泰华工业（深圳）有限公司 | Hinge |
| CN105020548A (en) * | 2014-04-24 | 2015-11-04 | 欧达尔医疗系统有限责任公司 | Rotatable connection device with limitation of the rotational angle |
| CN205401423U (en) * | 2016-03-02 | 2016-07-27 | 张雪 | Crescent single -row cylindrical roller bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109210335A (en) | 2019-01-15 |
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