CN212903243U - Triaxial temperature control rotary table with heat insulation mechanism inside - Google Patents
Triaxial temperature control rotary table with heat insulation mechanism inside Download PDFInfo
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- CN212903243U CN212903243U CN202022415536.3U CN202022415536U CN212903243U CN 212903243 U CN212903243 U CN 212903243U CN 202022415536 U CN202022415536 U CN 202022415536U CN 212903243 U CN212903243 U CN 212903243U
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Abstract
The utility model discloses a three-axis temperature control turntable with a heat insulation mechanism inside, which relates to the field of temperature control turntables and comprises an inner ring frame, a middle ring frame and a temperature control box, wherein the temperature control box is provided with two shaft holes, a first ceramic heat insulation shaft is arranged in one shaft hole, and a second ceramic heat insulation shaft is arranged in the other shaft hole; an inner ring brake shaft is arranged at the position where the middle ring frame corresponds to the first ceramic temperature isolating shaft, and an inner ring measuring shaft is arranged at the position where the middle ring frame corresponds to the second ceramic temperature isolating shaft; the inner ring brake shaft is connected with the middle ring frame through a brake bearing seat, a first connecting piece is arranged between the inner ring brake shaft and the brake bearing seat, and a free gap is formed between the first connecting piece and the brake bearing seat; the inner ring measuring shaft is connected with the middle ring frame through the measuring bearing seat, a second connecting piece is arranged between the inner ring measuring shaft and the measuring bearing seat, and the second connecting piece is fixedly connected with the measuring bearing seat. The utility model discloses can avoid inner ring shafting to receive the outside temperature influence, the angle measurement precision is higher.
Description
Technical Field
The utility model relates to a temperature control revolving stage field, concretely relates to inside triaxial temperature control revolving stage that has thermal-insulated mechanism.
Background
The triaxial temperature control rotary table is a commonly used rotary table with a temperature control function, and is widely used in testing parts with temperature requirements, along with the gradual improvement of the precision of an inertia measurement assembly and an inertia navigation assembly, the requirement on the triaxial temperature control rotary table is higher and higher, the requirement on the angle measurement precision is controlled within +/-2 ″, as the temperature control rotary table needs to be provided with a temperature control box to perform high and low temperature tests when in use, an inner ring shaft system is easily affected by external temperature to expand with heat and contract with cold, the angle measurement precision can be reduced, the service life of the inner ring shaft system can be shortened, and the use cost is increased.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims to provide an inside triaxial control by temperature change revolving stage that has thermal-insulated mechanism can avoid inner ring shafting to receive the outside temperature influence.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a three-axis temperature control turntable with a heat insulation mechanism inside comprises an inner ring frame and a middle ring frame, wherein a temperature control box is arranged between the inner ring frame and the middle ring frame, two shaft holes are formed in the temperature control box, a first ceramic heat insulation shaft is arranged in one shaft hole, and a second ceramic heat insulation shaft is arranged in the other shaft hole;
an inner ring braking shaft is arranged at the position, corresponding to the first ceramic temperature isolating shaft, of the middle ring frame, and an inner ring measuring shaft is arranged at the position, corresponding to the second ceramic temperature isolating shaft, of the middle ring frame;
the inner ring brake shaft is connected with the middle ring frame through a brake bearing seat, a first connecting piece is arranged between the inner ring brake shaft and the brake bearing seat, a free gap is formed between the first connecting piece and the brake bearing seat, and the inner ring brake shaft and the first connecting piece can move in the free gap when the temperature changes; the inner ring measuring shaft is connected with the middle ring frame through a measuring bearing seat, a second connecting piece is arranged between the inner ring measuring shaft and the measuring bearing seat, and the second connecting piece is fixedly connected with the measuring bearing seat.
Furthermore, the first connecting piece and the second connecting piece respectively comprise a pair of high-precision angular contact ball bearings, the inner rings of the angular contact ball bearings corresponding to the first connecting piece are locked, and the outer rings can move, so that the first connecting piece can be moved; and inner rings of the angular contact ball bearings corresponding to the second connecting pieces are locked.
Furthermore, the first connecting piece and the second connecting piece are coaxially arranged.
Furthermore, one end of the first ceramic heat-insulating shaft is connected with the inner ring frame, and the other end of the first ceramic heat-insulating shaft is connected with the inner ring brake shaft through the ceramic shaft bottom plate; one end of the second ceramic heat insulation shaft is connected with the inner ring frame, and the other end of the second ceramic heat insulation shaft is connected with the inner ring measuring shaft through the ceramic shaft bottom plate.
Furthermore, heating mechanisms are arranged inside the first ceramic heat-insulating shaft and the second ceramic heat-insulating shaft.
Furthermore, the heating mechanisms are fixed on the corresponding ceramic shaft bottom plates.
Furthermore, the first ceramic heat-insulating shaft and the second ceramic heat-insulating shaft are both made of alumina ceramics.
Compared with the prior art, the utility model has the advantages of:
(1) the utility model provides a triaxial temperature control turntable with a heat insulation mechanism inside, a free gap is arranged between a first connecting piece and a brake bearing seat, and when the temperature changes, an inner ring brake shaft and the first connecting piece can move in the free gap; fixed connection between second connecting piece and the measurement bearing frame, when temperature variation, inner ring braking axle and first connecting piece can remove in free clearance, can effectively avoid inner ring braking axle, inner ring measuring shaft to be damaged when taking place expend with heat and contract with cold, improve the life of shafting, reduce use cost.
(2) The utility model provides a triaxial temperature control turntable with a heat insulation mechanism inside, which comprises a first ceramic heat insulation shaft and a second ceramic heat insulation shaft which are arranged in two shaft holes of a temperature control box, wherein the first ceramic heat insulation shaft and the second ceramic heat insulation shaft seal the shaft holes on the temperature control box to insulate heat, thereby reducing the heat transfer between the temperature control box and a shaft system; when the temperature control box refrigerates, the heating mechanism heats to compensate the temperature, so that the damage of the shafting caused by too low temperature is avoided, the precision of the shafting is effectively ensured, and the service life of the shafting is prolonged.
Drawings
Fig. 1 is a schematic structural view of a three-axis temperature-controlled turntable with a heat insulation mechanism therein according to an embodiment of the present invention.
In the figure: 1-inner ring frame, 2-middle ring frame, 3-temperature control box, 4-first ceramic heat insulation shaft, 5-second ceramic heat insulation shaft, 6-inner ring brake shaft, 7-inner ring measurement shaft, 8-brake bearing seat, 9-first connecting piece, 10-second connecting piece, 11-heating mechanism, 12-ceramic shaft bottom plate and 13-measurement bearing seat.
Detailed Description
The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, the embodiment of the present invention provides a three-axis temperature-controlled turntable with a heat insulation mechanism inside, including an inner ring frame 1 and a middle ring frame 2, a temperature-controlled box 3 is provided between the inner ring frame 1 and the middle ring frame 2, the temperature-controlled box 3 is provided with two shaft holes, a first ceramic heat-insulating shaft 4 is provided in one shaft hole, and a second ceramic heat-insulating shaft 5 is provided in the other shaft hole.
An inner ring braking shaft 6 is arranged at the position of the middle ring frame 2 corresponding to the first ceramic heat insulation shaft 4, and an inner ring measuring shaft 7 is arranged at the position of the middle ring frame 2 corresponding to the second ceramic heat insulation shaft 5.
The inner ring brake shaft 6 is connected with the middle ring frame 2 through a brake bearing seat 8, a first connecting piece 9 is arranged between the inner ring brake shaft 6 and the brake bearing seat 8, a free gap is formed between the first connecting piece 9 and the brake bearing seat 8, and when the temperature changes, the inner ring brake shaft 6 and the first connecting piece 9 can move in the free gap; the inner ring measuring shaft 7 is connected with the middle ring frame 2 through a measuring bearing seat 13, a second connecting piece 10 is arranged between the inner ring measuring shaft 7 and the measuring bearing seat 13, and the second connecting piece 10 is fixedly connected with the measuring bearing seat 13.
The first connecting piece 9 and the second connecting piece 10 are both a pair of high-precision angular contact ball bearings, the inner ring of the angular contact ball bearing corresponding to the first connecting piece 9 is locked, the outer ring can move, so that a structure that one end of the first connecting piece 9 is fixed and the other end of the first connecting piece can move is realized, and the inner ring and the outer ring of the angular contact ball bearing corresponding to the second connecting piece 10 are both locked; and the first connecting piece 9 and the second connecting piece 10 are coaxially arranged.
The first ceramic heat-insulating shaft 4 and the second ceramic heat-insulating shaft 5 are made of alumina ceramics, and have the functions of high and low temperature resistance, corrosion resistance, oxidation resistance and electrical insulation.
The first ceramic heat-insulating shaft 4 and the second ceramic heat-insulating shaft 5 are used for sealing and insulating the shaft hole on the temperature control box 3, so that the heat transfer between the temperature control box 3 and a shaft system is reduced; when temperature control box 3 refrigerates, heating mechanism 11 heats and carries out temperature compensation, avoids the temperature to hang down excessively to lead to the shafting impaired, has effectively guaranteed the precision of shafting, has prolonged the life of shafting.
The present invention is not limited to the above preferred embodiments, and any person can obtain other products in various forms without departing from the scope of the present invention, but any change in shape or structure is within the scope of protection.
Claims (7)
1. The utility model provides an inside triaxial temperature control revolving stage that has thermal-insulated mechanism, includes inner ring frame (1) and zhonghuan frame (2), be provided with between inner ring frame (1) and zhonghuan frame (2) temperature control case (3), its characterized in that: two shaft holes are formed in the temperature control box (3), a first ceramic heat insulation shaft (4) is arranged in one shaft hole, and a second ceramic heat insulation shaft (5) is arranged in the other shaft hole;
an inner ring brake shaft (6) is arranged at the position, corresponding to the first ceramic heat insulation shaft (4), of the middle ring frame (2), and an inner ring measuring shaft (7) is arranged at the position, corresponding to the second ceramic heat insulation shaft (5), of the middle ring frame (2);
the inner ring brake shaft (6) is connected with the middle ring frame (2) through a brake bearing seat (8), a first connecting piece (9) is arranged between the inner ring brake shaft (6) and the brake bearing seat (8), a free gap is formed between the first connecting piece (9) and the brake bearing seat (8), and when the temperature changes, the inner ring brake shaft (6) and the first connecting piece (9) can move in the free gap; the inner ring measuring shaft (7) is connected with the middle ring frame (2) through a measuring bearing seat (13), a second connecting piece (10) is arranged between the inner ring measuring shaft (7) and the measuring bearing seat (13), and the second connecting piece (10) is fixedly connected with the measuring bearing seat (13).
2. The three-axis thermally controlled turret with thermal isolation mechanism inside according to claim 1, wherein: first connecting piece (9), second connecting piece (10) all include a pair of high accuracy angular contact ball bearing, the inner circle lock of the angular contact ball bearing that first connecting piece (9) correspond dies, and the outer lane is portable to realize that first connecting piece (9) are walked, angular contact ball bearing's that second connecting piece (10) correspond inner circle, outer lane all lock dies.
3. The three-axis thermally controlled turret with thermal isolation mechanism inside according to claim 1, wherein: the first connecting piece (9) and the second connecting piece (10) are coaxially arranged.
4. The three-axis thermally controlled turret with thermal isolation mechanism inside according to claim 1, wherein: one end of the first ceramic heat insulation shaft (4) is connected with the inner ring frame (1), and the other end of the first ceramic heat insulation shaft is connected with the inner ring brake shaft (6) through a ceramic shaft bottom plate (12); one end of the second ceramic heat insulation shaft (5) is connected with the inner ring frame (1), and the other end of the second ceramic heat insulation shaft is connected with the inner ring measuring shaft (7) through a ceramic shaft bottom plate (12).
5. The three-axis thermally controlled turret with thermal isolation mechanism inside according to claim 4, wherein: and heating mechanisms (11) are arranged in the first ceramic heat-insulating shaft (4) and the second ceramic heat-insulating shaft (5).
6. The three-axis thermally controlled turret with thermal isolation mechanism inside according to claim 5, wherein: the heating mechanisms (11) are fixed on the corresponding ceramic shaft bottom plates (12).
7. The three-axis thermally controlled turret with thermal isolation mechanism inside according to claim 1, wherein: the first ceramic heat-insulating shaft (4) and the second ceramic heat-insulating shaft (5) are both made of alumina ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022415536.3U CN212903243U (en) | 2020-10-27 | 2020-10-27 | Triaxial temperature control rotary table with heat insulation mechanism inside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022415536.3U CN212903243U (en) | 2020-10-27 | 2020-10-27 | Triaxial temperature control rotary table with heat insulation mechanism inside |
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| Publication Number | Publication Date |
|---|---|
| CN212903243U true CN212903243U (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022415536.3U Active CN212903243U (en) | 2020-10-27 | 2020-10-27 | Triaxial temperature control rotary table with heat insulation mechanism inside |
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| CN (1) | CN212903243U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776919A (en) * | 2021-12-31 | 2022-07-22 | 中国航空工业集团公司北京航空精密机械研究所 | Three-channel rotary joint of temperature control rotary table and temperature control rotary table |
-
2020
- 2020-10-27 CN CN202022415536.3U patent/CN212903243U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776919A (en) * | 2021-12-31 | 2022-07-22 | 中国航空工业集团公司北京航空精密机械研究所 | Three-channel rotary joint of temperature control rotary table and temperature control rotary table |
| CN114776919B (en) * | 2021-12-31 | 2023-11-03 | 中国航空工业集团公司北京航空精密机械研究所 | Three-way rotary joint of temperature control rotary table and temperature control rotary table |
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| CB03 | Change of inventor or designer information |
Inventor after: Zhang Jiajun Inventor after: Yan Mingquan Inventor after: Chen Yongjun Inventor after: Chen Pingan Inventor after: Chen Hua Inventor before: Zhang Jiajun Inventor before: Yan Mingquan Inventor before: Chen Yong Inventor before: Chen Pingan Inventor before: Chen Hua |