CN107917144B - Ultralow disturbance torque rotary axis system - Google Patents
Ultralow disturbance torque rotary axis system Download PDFInfo
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- CN107917144B CN107917144B CN201711040293.6A CN201711040293A CN107917144B CN 107917144 B CN107917144 B CN 107917144B CN 201711040293 A CN201711040293 A CN 201711040293A CN 107917144 B CN107917144 B CN 107917144B
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- Prior art keywords
- slip ring
- main shaft
- silicon photocell
- conducting slip
- axis
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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
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/004—Electro-dynamic machines, e.g. motors, generators, actuators
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
A kind of ultralow disturbance torque rotary axis system, including main shaft, main shaft upper end are connect with work top, main shaft passes through gas bearing, and is co-axially mounted with gas bearing, and the lower end of main shaft is connect with brushless torque motor, it is conducting slip ring below main shaft, is slip ring servo system below conducting slip ring.The slip ring servo system includes conducting slip ring, silicon photocell, silicon photocell detecting plate, slip ring servo motor and slip ring axis；Conducting slip ring is made of rotor and stator, and main shaft is coaxial with the rotor installation, but does not contact, main shaft lower end connects counterweight, is conducting slip ring below counterweight, and conducting slip ring is not contacted with counterweight, the stator and slip ring axis connection of conducting slip ring, slip ring servo motor are co-axially mounted with slip ring axis；Silicon photocell detecting plate is installed in counterweight lower end surface, and position corresponding with silicon photocell detecting plate is equipped with silicon photocell on the stator of conducting slip ring；The rotor of conducting slip ring is connected by the work top of flexible cable and turntable, is rotated together with work top.
Description
Technical field
The invention belongs to rotary axis system fields, and in particular to a kind of ultralow disturbance torque rotary axis system.
Background technique
High-precision navigation equipment such as gyroscope etc. is the important feedback element in guidance control system, to improve navigation essence
Degree needs to carry out independent calibration to these navigation equipments, and reducing drift error bring influences.To inertia test equipment itself
The phenomenon that speech, high precision measurement turntable must solve low speed jerking motion, while still guaranteeing axis system when carrying out space overturning
With enough position precisions and speed precision.
Traditional either simplex condition air-bearing can satisfy single load in the status requirement and rate requirement of fixed position, and
For inertia production test class turntable, need to carry out the multi-shaft interlocked test request for being just able to satisfy test product, therefore pass
The either simplex condition air-floating main shaft structure type of system is unable to satisfy in test product in a wide range of interior variation, i.e., wide area load is turned in space
Turn the application under state.
Summary of the invention
It is an object of the invention in large-sized air-bearing shafts design basis, mention in place of overcome the deficiencies in the prior art
For the design method and design structure model of the convertible main shaft in space in a kind of wide area load range, this method solve traditional single
Operating condition air-floating main shaft structure type is unable to satisfy the problem of applying under the rollover states of space, expands air-bearing in precision measurement
Application range in quasi-instrument field.The pivoting friction that the conducting slip ring installed on test table simultaneously is brought into rotation can be with
It is compensated by the specific constructive form of this air-floating main shaft, improves measuring accuracy and test accuracy, push China's inertial navigation
Further development of the product to the high stabilizability direction of high-precision.
Technical scheme is as follows: a kind of ultralow disturbance torque rotary axis system, including main shaft, main shaft upper end and work
Table top connection, main shaft passes through gas bearing, and is co-axially mounted with gas bearing, and the lower end of main shaft is connect with brushless torque motor,
It is conducting slip ring below main shaft, is slip ring servo system below conducting slip ring.
The slip ring servo system includes conducting slip ring, silicon photocell, silicon photocell detecting plate, slip ring servo motor and cunning
Annulate shaft；Conducting slip ring is made of rotor and stator, and main shaft is coaxial with the rotor installation, but does not contact, and main shaft lower end connects counterweight, is matched
Weight lower section is conducting slip ring, and conducting slip ring is not contacted with counterweight, the stator and slip ring axis connection of conducting slip ring, slip ring servo electricity
Machine is co-axially mounted with slip ring axis；Silicon photocell detecting plate is installed in counterweight lower end surface, and on the stator of conducting slip ring with silicon
The corresponding position of photocell detecting plate is equipped with silicon photocell；The rotor of conducting slip ring passes through the work of flexible cable and turntable
Table top connection, rotates together with work top.
When the work top rotation when turntable, silicon photocell detecting plate and silicon photocell real-time measurement slip ring axis and master
Location error between axis；It is proportional that slip ring servo-control system provides the location error size between slip ring axis and main shaft
Voltage signal drives slip ring servo motor, drives slip ring to axially reduce the direction rotation of location error, reaches slip ring axis and main shaft
It is synchronous.
Main shaft upper end is spirally connected with work top.
The technology of the present invention effect: intermediate thrust bearing and end face adjustable counter balance technology are used, traditional either simplex condition is overcome
The drawbacks of air-bearing can not be applied in the roll over condition of space realizes large scale air-bearing and turns in wide area load down space
Turn to apply in condition.The structure type of air-floating main shaft and friction torque compensation Cascade System simultaneously, greatly improves complete machine knot
The compact of structure and miniaturization expand air-bearing and apply in accurate measurement.
Detailed description of the invention
Fig. 1 is ultralow disturbance torque rotary axis system schematic diagram of the present invention
Fig. 2 is ultralow disturbance torque rotary axis system slip ring servo system schematic diagram of the present invention
In figure: 1-5-test product of pedestal 2-turntable work top 3-gas bearing, 4-main shaft 6-brushless
Torque motor 7-conducting slip ring, 8-slip ring servo system, 9-silicon photocell, 10-silicon photocell, 11-counterweight of detecting plate
12-slip ring servo motors
Specific embodiment
Ultralow disturbance torque rotary axis system, including main shaft 4,4 upper end of main shaft are spirally connected with work top 2, and main shaft 4 passes through gas
Bearing 3, and be co-axially mounted with gas bearing 3, the lower end of main shaft 4 is connect with brushless torque motor 6, is conductive cunning below main shaft 4
Ring 7 is slip ring servo system 8 below conducting slip ring 7.
Slip ring servo system 8 includes conducting slip ring 7, silicon photocell 9, silicon photocell detecting plate 10, slip ring servo motor 12
With slip ring axis 16.Conducting slip ring 7 is made of rotor 13 and stator 14, and main shaft 4 is co-axially mounted with rotor 13, but is not contacted, main shaft 4
Lower end connects counterweight 11, is conducting slip ring 7 below counterweight 11, and conducting slip ring 7 is not contacted with counterweight 11, conducting slip ring 7 is determined
Son 14 is connect with slip ring axis 16, and slip ring servo motor 12 is co-axially mounted with slip ring axis 16.Silicon light is installed in 11 lower end surface of counterweight
Battery probe plate 10, and position corresponding with silicon photocell detecting plate 10 is equipped with silicon light on the stator of conducting slip ring 7 14
Battery 9.The rotor 13 of conducting slip ring 7 is connect by flexible cable 15 with the work top 2 of turntable, with 2 turns of work top
It is dynamic.When the work top 2 of turntable rotates, silicon photocell detecting plate 10 and silicon photocell 9 can with real-time measurement slip ring axis 16 with
Location error between main shaft 4；Slip ring servo-control system provide the location error size between slip ring axis 16 and main shaft 4 at
The voltage signal of ratio drives slip ring servo motor 12, drives slip ring axis 16 to rotate to the direction for reducing location error, reaches sliding
The effect that annulate shaft 16 and main shaft 4 move synchronously.So the moment of friction of conducting slip ring on main shaft without influence, guarantee main shaft without rubbing
It works under the conditions of wiping, improves the speed precision and rate smoothness of turntable.
Claims (3)
1. a kind of ultralow disturbance torque rotary axis system, it is characterised in that: including main shaft (4), main shaft (4) upper end and work top
(2) it connects, main shaft (4) passes through gas bearing (3), and is co-axially mounted with gas bearing (3), lower end and the no brushing force of main shaft (4)
Torque motor (6) connection, main shaft (4) lower section are conducting slip ring (7), are slip ring servo system (8) below conducting slip ring (7)；
The slip ring servo system (8) includes that conducting slip ring (7), silicon photocell (9), silicon photocell detecting plate (10), slip ring are watched
Take motor (12) and slip ring axis (16)；Conducting slip ring (7) is made of rotor (13) and stator (14), main shaft (4) and rotor (13)
It is co-axially mounted, but does not contact, main shaft (4) lower end connects counterweight (11), is below counterweight (11) conducting slip ring (7), and conductive sliding
Ring (7) is not contacted with counterweight (11), and the stator (14) of conducting slip ring (7) is connect with slip ring axis (16), slip ring servo motor (12)
It is co-axially mounted with slip ring axis (16)；Silicon photocell detecting plate (10) are installed in counterweight (11) lower end surface, and in conducting slip ring (7)
Stator (14) on position corresponding with silicon photocell detecting plate (10) silicon photocell (9) are installed；Conducting slip ring (7) turns
Sub (13) are connect by flexible cable (15) with the work top (2) of turntable, are rotated together with work top (2).
2. a kind of ultralow disturbance torque rotary axis system according to claim 1, it is characterised in that: the work top (2)
When rotation, the position between silicon photocell detecting plate (10) and silicon photocell (9) real-time measurement slip ring axis (16) and main shaft (4) is missed
Difference；Slip ring servo-control system provides the proportional voltage of the location error size between slip ring axis (16) and main shaft (4) and believes
Number, it drives slip ring servo motor (12), drives slip ring axis (16) to rotate to the direction for reducing location error, reach slip ring axis (16)
It is synchronous with main shaft (4).
3. a kind of ultralow disturbance torque rotary axis system according to claim 1, it is characterised in that: main shaft (4) upper end and work
Make table top (2) to be spirally connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711040293.6A CN107917144B (en) | 2017-10-31 | 2017-10-31 | Ultralow disturbance torque rotary axis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711040293.6A CN107917144B (en) | 2017-10-31 | 2017-10-31 | Ultralow disturbance torque rotary axis system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107917144A CN107917144A (en) | 2018-04-17 |
| CN107917144B true CN107917144B (en) | 2019-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711040293.6A Active CN107917144B (en) | 2017-10-31 | 2017-10-31 | Ultralow disturbance torque rotary axis system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486169B (en) * | 2020-04-03 | 2023-10-03 | 浙江大学 | Upper driving type main shaft complex for centrifugal supergravity device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU767576A1 (en) * | 1978-05-19 | 1980-09-30 | Владимирский политехнический институт | Device for determining moments of static gas supports |
| CN1851428A (en) * | 2006-04-30 | 2006-10-25 | 北京航空航天大学 | Torque test air support rotating platform for control torque gyro |
| CN204329980U (en) * | 2014-11-21 | 2015-05-13 | 浙江讯领科技有限公司 | A kind of electric dynamic triaxial is without magnetic teleclinometer verification turntable |
| CN106323547A (en) * | 2016-06-20 | 2017-01-11 | 中国航空工业集团公司北京长城计量测试技术研究所 | Rotating shaft system rotational inertia in-situ measurement device |
| CN106323283A (en) * | 2016-08-30 | 2017-01-11 | 西安比特联创微波科技有限公司 | Vehicle-mounted two-axis turntable and testing method thereof |
-
2017
- 2017-10-31 CN CN201711040293.6A patent/CN107917144B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU767576A1 (en) * | 1978-05-19 | 1980-09-30 | Владимирский политехнический институт | Device for determining moments of static gas supports |
| CN1851428A (en) * | 2006-04-30 | 2006-10-25 | 北京航空航天大学 | Torque test air support rotating platform for control torque gyro |
| CN204329980U (en) * | 2014-11-21 | 2015-05-13 | 浙江讯领科技有限公司 | A kind of electric dynamic triaxial is without magnetic teleclinometer verification turntable |
| CN106323547A (en) * | 2016-06-20 | 2017-01-11 | 中国航空工业集团公司北京长城计量测试技术研究所 | Rotating shaft system rotational inertia in-situ measurement device |
| CN106323283A (en) * | 2016-08-30 | 2017-01-11 | 西安比特联创微波科技有限公司 | Vehicle-mounted two-axis turntable and testing method thereof |
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|---|---|
| CN107917144A (en) | 2018-04-17 |
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