CN210153180U - High-precision shaft system with multi-position locking mechanism - Google Patents
High-precision shaft system with multi-position locking mechanism Download PDFInfo
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- CN210153180U CN210153180U CN201821686990.9U CN201821686990U CN210153180U CN 210153180 U CN210153180 U CN 210153180U CN 201821686990 U CN201821686990 U CN 201821686990U CN 210153180 U CN210153180 U CN 210153180U
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Abstract
The utility model discloses a take multiposition locking mechanical system's high accuracy shafting, including gyration shafting, locking mechanical system, its characterized in that: the utility model discloses an accurate cross roller bearing does as the support element, and the bearing inner race is as fixed, and the bearing inner race is used for the gyration, at the first grating of the inner circle installation high accuracy of bearing to and the movable fluted disc, install the reading head on the outer lane of bearing and be used for using with the grating is supporting. And meanwhile, a set of locking mechanism is also arranged on the bearing outer ring and used for locking the stator and the rotor of the bearing, so that the shafting can be locked without rotation.
Description
Technical Field
The utility model relates to a locking shafting technical field especially relates to a take multiposition locking mechanism's high accuracy shafting.
Background
With the development of new technology and the needs of industry, many inertial navigation test devices need to be calibrated at multiple positions in the inertial navigation test process, and the calibration time is long, so that the conventional device needs to be electrically controlled and locked at a certain position for a long time when being calibrated, the operation motor is easy to generate heat and can only be performed in a laboratory environment, and is difficult to be electrically controlled and locked in the environment with vibration and impact or high and low temperature, and a shaft system capable of being locked at multiple positions is needed.
The utility model relates to a take locking mechanism's high accuracy shafting, this shafting can use under high low temperature-40 ℃ -60 ℃ environment, can also use in the environment of early impact and vibration simultaneously. The absolute position positioning accuracy of the shafting can reach within 3 ″, the inner ring and the outer ring of the bearing can be locked by the locking mechanism under the condition that the shafting does not rotate, the reliable locking of the shafting can be ensured after the power failure, and the locking accuracy can be ensured within 10 ″.
SUMMERY OF THE UTILITY MODEL
The utility model aims at making current calibration equipment can carry out long-time demarcation under the complex environment, this equipment is simple and easy to assemble to the commonality is strong. The device also comprises a grating sensor, so that 3' position precision can be realized, and the device has a high-precision positioning function.
The technical principle of the utility model is as follows: according to the characteristics that the precise crossed roller bearing is provided with a mounting flange and a mounting threaded hole, in order to integrate locking and angle measurement and form a shaft system with better universality, an angle measurement element and a locking mechanism are added on the bearing, so that the bearing can form a shaft system with locking and angle measurement. The precise crossed roller bearing can be connected with a certain device with a drive through a flange, the outer ring is connected with a frame of the device, and the inner ring is connected with a rotating part of the device, so that the rotation of the inner ring can be realized. Because the high-precision element grating reading head is arranged on the inner ring of the precision crossed roller bearing through the threaded hole and is arranged on the bearing outer ring, the grating can provide angle measurement output of a shafting when the bearing inner ring rotates, and the precise positioning of the shafting rotation is realized. And the locking mechanism arranged on the outer ring is meshed with the fluted disc arranged on the inner ring, so that the locking of the shafting is realized, the mechanical locking of the whole shafting is realized, and the locking at multiple positions can be realized because the number of the fluted disc is 90 or more.
The utility model adopts the following technical scheme:
the utility model provides a take multi-position locking mechanism's high accuracy shafting, includes gyration shafting, locking mechanism, its characterized in that: the rotary shaft system is directly connected with a locking mechanism, and the inner ring and the outer ring of the bearing are fixedly connected through the locking mechanism, so that the multi-position locking and positioning of the rotary shaft system are realized;
the rotary shaft system comprises a precise crossed roller bearing 1, a grating reading head 2 and a grating 3, wherein the grating 3 is arranged on a rotor of the precise crossed roller bearing 1, and the grating reading head 2 is arranged on a stator of the precise crossed roller bearing 1;
the locking mechanism includes: the locking device comprises a locking seat 4, a guide rod 5, a dense ball 6, a guide seat 7, an angular contact ball bearing 8, a worm wheel 9, a worm 10, a dense ball seat 11, a fixed fluted disc 12, a movable fluted disc 13, a movable fluted disc adapter 14, a locking seat support 15, a servo motor 16, a travel switch 17 and an infrared sensor 18; wherein, the worm wheel 9 and the worm 10 are arranged in the locking seat 4 through an angular contact ball bearing 8 to form a transmission mechanism; the fixed gear disc 12 is connected with the worm wheel 9 through threads, so that the lifting function of the fixed gear disc 12 is realized; the movable fluted disc 13 is arranged on the locked equipment through the movable fluted disc adapter 14, and the locking is realized through the lifting of the fixed fluted disc 12; the guide rod 5, the dense beads 6, the dense bead seat 11 and the guide seat 7 are arranged at the upper end of the locking seat 4 and are connected with the fixed fluted disc 12 to form a guide device; the dense beads 6 and the dense bead seats 11 are connected with the locking seat 4 to realize the positioning of the fixed fluted disc 12; the servo motor 16 is arranged on the locking seat 4 and connected with the worm 10 to drive the worm; the travel switch 17 and the infrared sensor 18 are arranged on the locking seat 4 to realize control and protection during movement; the locking seat support 15 is used as a switching device to connect the locking seat 4 and the precise crossed roller bearing 1 together, and a high-precision shaft system with a multi-position locking mechanism is formed together.
Further, the fixed toothed plate 12, the movable toothed plate 13 and the toothed plate 12 are rigidly engaged and connected together and locked in multiple positions.
Furthermore, the shafting grating is a high and low temperature resistant angle measuring element, and the positioning precision parameter is within 3 ″. "
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the cross-sectional structure of the present invention.
FIG. 3 is the structural diagram for explaining the present invention
Shown in the following figures:
1. precision crossed roller bearing 2, grating reading head 3 and grating
4. Locking seat 5, guide rod 6 and dense bead
7. Guide seat 8, angular contact ball bearing 9 and worm wheel
10. Worm 11, dense ball seat 12, fixed fluted disc
13. Moving fluted disc 14, moving fluted disc adapter 15, locking seat support
16. Servo motor 17, travel switch 18, infrared sensor.
Detailed Description
The present invention will be further described with reference to the following examples and accompanying drawings. A high-precision shaft system with a multi-position locking mechanism comprises a precision crossed roller bearing, a meta-grating, a locking mechanism and the like.
The precise crossed roller bearing 1 is used as a main supporting part of the shaft system and is the key for realizing high-precision rotation and locking. A high-precision grating 3 is arranged on the inner ring of the precision cross roller bearing 1, and a reading head 2 matched with the grating is arranged on the outer ring of the precision cross roller bearing 1. The locking mechanism is integrally arranged on the outer ring of the precise crossed roller bearing 1 and comprises a locking seat, a worm gear, a dense ball shaft system, a guide shaft system and the like. The locking seat 4 is a main support of the locking mechanism, a guide shaft system is arranged on the locking seat and used as a locking guide, and the locking mechanism mainly comprises a guide rod 5, a dense bead 6 and a guide seat 7.
The main driving mode of the whole locking mechanism is worm and gear movement, therefore, a worm wheel 9 is installed in the center of the locking mechanism, and bearing support of the worm wheel is derived from an angular contact ball bearing 8, and the bearing can enable the worm wheel to keep stable when the worm wheel rotates. A worm 10 matched with a worm wheel 9 is arranged at one side of the locking seat 4, and the axial support of the worm is also a pair of angular contact ball bearings 8. And a pair of infrared sensors 18 are further arranged on two sides of one end of the worm 10 and fixed on the locking seat 4 for controlling a closed loop when the locking mechanism moves.
A set of dense ball shaft system is arranged below the locking seat 4 and consists of a dense ball seat 11 and a dense ball 6. And a fixed fluted disc 12 is matched with the dense ball shaft system, the radial support of the fluted disc depends on the dense ball shaft system, and the fluted disc is axially connected with the worm wheel 9 through threads. And a movable fluted disc 13 is arranged at the lower end of the fixed fluted disc 12, and the two fluted discs are matched for use to realize the locking function. The movable fluted disc 13 is connected with the inner ring of the precision crossed roller bearing 1 through a movable fluted disc adapter 14. Travel switches 17 are also arranged on the locking seat 4 and the fixed fluted disc 12 and are also used as control closed loops of locking movement.
The whole set of locking mechanism is arranged on the outer ring of the precise crossed roller bearing 1 through a locking seat support 15, and a servo motor 16 is arranged on the locking seat support 15 and connected with the worm 10
The working mode is as follows: the high-precision shaft system with the multi-position locking mechanism is arranged at one end of the device and connected with a driving shaft system of the device, so that the high-precision shaft system can drive the precise crossed roller bearing rotor to move, when the shaft system moves, the angular position of the shaft system can be obtained through data acquisition of the measurement and control board card, and the precision can be guaranteed to be within 3 ″. When the locking is needed, a locking signal is given, and the fixed fluted disc does linear motion and can be connected with the movable fluted disc, so that the inner ring and the outer ring of the precise crossed roller bearing are fixedly connected, and the locking function is realized. The number of locking positions may be determined by the number of teeth on the toothed disc.
Claims (3)
1. The utility model provides a take multi-position locking mechanism's high accuracy shafting, includes gyration shafting, locking mechanism, its characterized in that: the rotary shaft system is directly connected with a locking mechanism, and the inner ring and the outer ring of the bearing are fixedly connected through the locking mechanism, so that the multi-position locking and positioning of the rotary shaft system are realized;
the rotary shaft system comprises a precise crossed roller bearing (1), a grating reading head (2) and a grating (3), wherein the grating (3) is arranged on a rotor of the precise crossed roller bearing (1), and the grating reading head (2) is arranged on a stator of the precise crossed roller bearing (1);
the locking mechanism includes: the device comprises a locking seat (4), a guide rod (5), a dense bead (6), a guide seat (7), an angular contact ball bearing (8), a worm wheel (9), a worm (10), a dense bead seat (11), a fixed fluted disc (12), a movable fluted disc (13), a movable fluted disc adapter seat (14), a locking seat support (15), a servo motor (16), a travel switch (17) and an infrared sensor (18); wherein the worm wheel (9) and the worm (10) are arranged in the locking seat (4) through an angular contact ball bearing (8) to form a transmission mechanism; the fixed gear disc (12) is connected with the worm wheel (9) through threads, so that the lifting function of the fixed gear disc (12) is realized; the movable fluted disc (13) is arranged on the locked equipment through a movable fluted disc adapter (14), and the locking is realized through the lifting of the fixed fluted disc (12); the guide rod (5), the dense beads (6), the dense bead seat (11) and the guide seat (7) are arranged at the upper end of the locking seat (4) and are connected with the fixed fluted disc (12) to form a guide device; the dense beads (6) and the dense bead seat (11) are connected with the locking seat (4) to realize the positioning of the fixed fluted disc (12); the servo motor (16) is arranged on the locking seat (4) and connected with the worm (10) to drive the worm; the travel switch (17) and the infrared sensor (18) are arranged on the locking seat (4) to realize control and protection during movement; the locking seat support (15) is used as a switching device to connect the locking seat (4) and the precise crossed roller bearing (1) together, and a high-precision shaft system with a multi-position locking mechanism is formed together.
2. A high precision shafting with multi-position locking mechanism according to claim 1, wherein said fixed toothed plate (12), said movable toothed plate (13) and said toothed plate (12) are rigidly engaged and connected together and are multi-position locked.
3. The high-precision shafting with the multi-position locking mechanism according to claim 1, wherein the shafting grating is a high and low temperature resistant angle measuring element, and the positioning precision parameter is within 3 ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821686990.9U CN210153180U (en) | 2018-10-18 | 2018-10-18 | High-precision shaft system with multi-position locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821686990.9U CN210153180U (en) | 2018-10-18 | 2018-10-18 | High-precision shaft system with multi-position locking mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN210153180U true CN210153180U (en) | 2020-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821686990.9U Active CN210153180U (en) | 2018-10-18 | 2018-10-18 | High-precision shaft system with multi-position locking mechanism |
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| CN (1) | CN210153180U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372974A (en) * | 2018-10-18 | 2019-02-22 | 九江精密测试技术研究所 | A kind of high-precision shafting with multiposition retaining mechanism |
| CN111693067A (en) * | 2020-05-25 | 2020-09-22 | 北京航天时代光电科技有限公司 | High-precision miniaturized double-shaft rotating bidirectional locking and positioning device |
-
2018
- 2018-10-18 CN CN201821686990.9U patent/CN210153180U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372974A (en) * | 2018-10-18 | 2019-02-22 | 九江精密测试技术研究所 | A kind of high-precision shafting with multiposition retaining mechanism |
| CN109372974B (en) * | 2018-10-18 | 2024-05-17 | 九江精密测试技术研究所 | High-precision shafting with multi-position locking mechanism |
| CN111693067A (en) * | 2020-05-25 | 2020-09-22 | 北京航天时代光电科技有限公司 | High-precision miniaturized double-shaft rotating bidirectional locking and positioning device |
| CN111693067B (en) * | 2020-05-25 | 2022-04-22 | 北京航天时代光电科技有限公司 | High-precision miniaturized double-shaft rotating bidirectional locking and positioning device |
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