CN109870077A - A position feedback device for a servo transmission mechanism - Google Patents
A position feedback device for a servo transmission mechanism Download PDFInfo
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- CN109870077A CN109870077A CN201711269461.9A CN201711269461A CN109870077A CN 109870077 A CN109870077 A CN 109870077A CN 201711269461 A CN201711269461 A CN 201711269461A CN 109870077 A CN109870077 A CN 109870077A
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- position feedback
- feedback device
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- servo
- screw
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- 230000007246 mechanism Effects 0.000 title claims abstract description 50
- 230000005540 biological transmission Effects 0.000 title abstract description 9
- 230000008030 elimination Effects 0.000 claims description 15
- 238000003379 elimination reaction Methods 0.000 claims description 15
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 13
- 238000000034 method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
The invention belongs to a position feedback device, and particularly relates to a position feedback device of a servo transmission mechanism. It includes the potentiometre subassembly, and the potentiometre subassembly sets up in the base to the potentiometre subassembly cup joints conical surface locking structure on the output shaft of potentiometre subassembly, and conical surface locking structure overcoat connects the anti-backlash gear assembly, and the afterbody supporting component is passed through to conical surface locking structure's the bottom, and the afterbody supporting component is fixed on the base. The invention has the beneficial effects that: the design method of the position feedback device of the servo transmission mechanism mainly comprises the design of a potentiometer assembly, an anti-backlash gear assembly, a conical surface locking structure, a tail supporting assembly and the like. The anti-backlash gear assembly can ensure the position feedback precision; the conical surface locking structure can ensure the connection reliability of the anti-backlash gear and the potentiometer; the tail supporting component can effectively support the position feedback device, and a cantilever beam structure is avoided, so that the reliability of the position feedback device is improved.
Description
Technical field
The invention belongs to position feedback devices, and in particular to a kind of servo-operated mechanism position feedback device.
Background technique
Servo-operated mechanism is a kind of important servo mechanism of missile weapon system, is the executing agency of rudder system, drives
Control surface deflection, to realize the control to missile flight posture.The transmission accuracy of servo-operated mechanism directly affects the control of rudder system
Precision processed, and then influence the control to missile flight posture.And the precision and reliability of servo-operated mechanism position feedback device
Be influence transmission accuracy and reliability principal element, therefore should the position feedback device to servo-operated mechanism effectively set
Meter, to guarantee the precision and reliability of servo-operated mechanism.
Summary of the invention
The purpose of the present invention is in view of the drawbacks of the prior art, propose a kind of servo-operated mechanism position feedback device.
The present invention is implemented as follows: a kind of servo-operated mechanism position feedback device, including current potential device assembly, the gap that disappears tooth
Wheel assembly, conical surface locking mechanism, tail support component and pedestal, wherein current potential device assembly is arranged in pedestal, and potentiometer
Component is socketed conical surface locking mechanism on the output shaft of current potential device assembly, is socketed clearance elimination gear component, the conical surface outside conical surface locking mechanism
By tail support modular support, tail support component is fixed on the base for the bottom of locking mechanism.
A kind of servo-operated mechanism position feedback device as described above, wherein further include screw I and screw II, screw I
For current potential device assembly to be fixed on pedestal, screw II is used for tail support component is fixed on the base.
A kind of servo-operated mechanism position feedback device as described above, wherein the current potential device assembly includes current potential
Device and positioning sleeve, wherein potentiometer is the main element of current potential device assembly, and positioning sleeve is socketed on the output shaft of potentiometer.
A kind of servo-operated mechanism position feedback device as described above, wherein the clearance elimination gear component includes master
Gear, pinion and ring spring, wherein master gear setting is set between lower end, master gear and pinion in upper end, pinion setting
Set ring spring.
A kind of servo-operated mechanism position feedback device as described above, wherein the conical surface locking mechanism includes ten
Word slot sleeve and locking nut, wherein locking nut is for locking cross recess sleeve.
A kind of servo-operated mechanism position feedback device as described above, wherein the tail support component by bracket,
Bearing, bearing plate and screw III, wherein bracket is fixedly connected with pedestal, and bearing is used to support conical surface locking mechanism, bearing
It is fixed on bracket by bearing plate and screw III.
A kind of servo-operated mechanism position feedback device as described above, wherein potentiometer output shaft outer diameter isScrew I and screw II specification are M2.5 × 8mm, and the specification of screw III is M2 × 5mm；Cross recess sleeve and electricity
It is clearance fit between the device output shaft of position, fit clearance is 0.005~0.01mm；It is interference between master gear and cross recess sleeve
Cooperation, magnitude of interference be 0.005~0.02mm, between pinion and cross recess sleeve be clearance fit, fit clearance be 0.005~
0.01mm；The cooperation frustoconical bevel angle of cross recess sleeve and locking nut is 60 °, and between the two is threaded to M8 screw thread.
The beneficial effects of the present invention are: proposing that a kind of servo-operated mechanism position is anti-using clearance elimination gear transmission as break-through point
Device design method is presented, mainly includes the side such as current potential device assembly, clearance elimination gear component, conical surface locking mechanism and tail support component
The design in face.Wherein, clearance elimination gear component can guarantee position feedback precision；Conical surface locking mechanism can guarantee clearance elimination gear and current potential
The connection reliability of device；Tail support component can effectively support position feedback device, avoid generating cantilever beam structure, from
And improve the reliability of position feedback device.
Detailed description of the invention
Attached drawing 1 is a kind of servo-operated mechanism position feedback device structural schematic diagram.
In figure, 1 current potential device assembly, 2 clearance elimination gear components, 3 conical surface locking mechanisms, 4 tail support components, 5 screw I, 6 spiral shells
Follow closely II, 7 pedestals, 1-1 potentiometer, 1-2 positioning sleeve, 2-1 master gear, 2-2 pinion, 2-3 ring spring, 3-1 cross recess sleeve, 3-2
Locking nut, 4-1 bracket, 4-2 bearing, 4-3 bearing plate, 4-4 screw III.
Specific embodiment
The present invention is described further in the following with reference to the drawings and specific embodiments.
A kind of servo-operated mechanism position feedback device is by current potential device assembly 1, clearance elimination gear component 2, conical surface locking mechanism
3, tail support component 4, screw I5 and screw II6 etc. are formed.
Wherein, current potential device assembly 1 is made of potentiometer 1-1 and positioning sleeve 1-2 etc.；Clearance elimination gear component 2 is by master gear 2-
1, pinion 2-2 and ring spring 2-3 etc. are formed；Conical surface locking mechanism 3 is made of cross recess sleeve 3-1 and locking nut 3-2 etc.；Tail
Portion's support component 4 is made of bracket 4-1, bearing 4-2, bearing plate 4-3 and screw III4-4 etc..
Wherein, potentiometer 1-1 output shaft outer diameter is φ 2.5mm；Screw I5 and screw II6 specification are M2.5 × 8mm, spiral shell
The specification for following closely 4-4III is M2 × 5mm；It is clearance fit, fit clearance between cross recess sleeve 3-1 and potentiometer 1-1 output shaft
For 0.005~0.01mm；It is interference fit between master gear 2-1 and cross recess sleeve 3-1, magnitude of interference is 0.005~0.02mm,
It is clearance fit between pinion 2-2 and cross recess sleeve 3-1, fit clearance is 0.005~0.01mm；Cross recess sleeve 3-1
Cooperation frustoconical bevel angle with locking nut 3-2 is 60 °, and between the two is threaded to M8 screw thread.
When a kind of servo-operated mechanism position feedback device assembles, potentiometer 1-1 is installed to base by screw I5 first
On seat 7, axially position then is carried out to potentiometer using positioning sleeve 1-2 part；Then 2 component of clearance elimination gear is installed to cross
On slot sleeve 3-1, then cross recess sleeve 3-1 is installed on potentiometer 1-1 output shaft, then by locking nut 3-2 to cross
Slot sleeve 3-1 is locked, to make cross recess sleeve 3-1 together with the output shaft fixed connection of potentiometer 1-1；Finally by tail portion
Support component 4 is installed on pedestal 7 by screw II6, completes the Auxiliary support to potentiometer 1-1 output shaft.
The characteristics of servo-operated mechanism position feedback device, is main are as follows:
(1) after clearance elimination gear component 2 is packed into servo-operated mechanism, due to the twisting force of ring spring 2-3, so that clearance elimination gear
Two teeth that component 2 is meshed in transmission process fit closely, to eliminate the return difference as caused by backlash, and then eliminate
Position feedback gap, improves servo sector position feedback accuracy；
(2) conical surface locking mechanism can guarantee separately to be packed into potentiometer 1-1 and cross recess in the limited space of transmission mechanism
Sleeve 3-1 is convenient for assembly or disassembly；
(3) tight fit for passing through locking nut 3-2 and cross recess sleeve two conical surfaces of 3-1, forces cross recess sleeve 3-1
By 4 separated part potentiometer 1-1 output shaft squeezed tights of cross-shaped groove structure, to complete to cross recess sleeve 3-1 and electricity
Locking between the device 1-1 output shaft of position, locking effect is significantly reliable, improves the reliability of position feedback transmission；
(4) potentiometer 1-1 output shaft is supported by the bearing 4-2 of tail support component 4, is guaranteeing potentiometer 1-
Under the premise of the rotation of 1 output shaft is flexible, position feedback device is effectively supported, avoids generating cantilever beam structure, thus into
The reliability of one step raising position feedback device.
Claims (7)
1. a kind of servo-operated mechanism position feedback device, it is characterised in that: including current potential device assembly (1), clearance elimination gear component
(2), conical surface locking mechanism (3), tail support component (4) and pedestal (7), wherein current potential device assembly (1) is arranged in pedestal (7)
It is interior, and current potential device assembly (1), conical surface locking mechanism (3) are socketed on the output shaft of current potential device assembly (1), conical surface locking mechanism
(3) clearance elimination gear component (2) are socketed outside, the bottom of conical surface locking mechanism (3) is supported by tail support component (4), tail portion
Support component (4) is fixed on pedestal (7).
2. a kind of servo-operated mechanism position feedback device as described in claim 1, it is characterised in that: further include (5) screw I
With screw II (6), for current potential device assembly (1) to be fixed on pedestal (7), screw II (6) is used for tail portion branch screw I (5)
Support component (4) is fixed on pedestal (7).
3. a kind of servo-operated mechanism position feedback device as claimed in claim 2, it is characterised in that: the potentiometer group
Part (1) includes potentiometer (1-1) and positioning sleeve (1-2), and wherein potentiometer (1-1) is the main element of current potential device assembly (1), fixed
Position set (1-2) is socketed on the output shaft of potentiometer (1-1).
4. a kind of servo-operated mechanism position feedback device as claimed in claim 3, it is characterised in that: the clearance elimination gear
Component (2) includes master gear (2-1), pinion (2-2) and ring spring (2-3), and wherein master gear (2-1) is arranged in upper end, secondary tooth
It takes turns (2-2) and setting ring spring (2-3) is set between lower end, master gear (2-1) and pinion (2-2).
5. a kind of servo-operated mechanism position feedback device as claimed in claim 4, it is characterised in that: the conical surface locking
Structure (3) includes cross recess sleeve (3-1) and locking nut (3-2), and wherein locking nut (3-2) is used for cross recess sleeve
(3-1) locking.
6. a kind of servo-operated mechanism position feedback device as claimed in claim 5, it is characterised in that: the tail support
Component (4) is by bracket (4-1), bearing (4-2), bearing plate (4-3) and screw III (4-4), wherein bracket (4-1) and pedestal
(7) it is fixedly connected, bearing (4-2) is used to support conical surface locking mechanism (3), and bearing (4-2) passes through bearing plate (4-3) and spiral shell
Nail III (4-4) is fixed on bracket (4-1).
7. a kind of servo-operated mechanism position feedback device as claimed in claim 6, it is characterised in that: potentiometer (1-1) is defeated
Shaft outer diameter isScrew I (5) and screw II (6) specification are M2.5 × 8mm, and the specification of screw (4-4) III is
M2×5mm；Between cross recess sleeve (3-1) and potentiometer (1-1) output shaft be clearance fit, fit clearance be 0.005~
0.01mm；It is interference fit between master gear (2-1) and cross recess sleeve (3-1), magnitude of interference is 0.005~0.02mm, secondary tooth
Taking turns is clearance fit between (2-2) and cross recess sleeve (3-1), and fit clearance is 0.005~0.01mm；Cross recess sleeve (3-
1) and the cooperation frustoconical bevel angle of locking nut (3-2) is 60 °, and between the two is threaded to M8 screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711269461.9A CN109870077A (en) | 2017-12-05 | 2017-12-05 | A position feedback device for a servo transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711269461.9A CN109870077A (en) | 2017-12-05 | 2017-12-05 | A position feedback device for a servo transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109870077A true CN109870077A (en) | 2019-06-11 |
Family
ID=66916675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711269461.9A Pending CN109870077A (en) | 2017-12-05 | 2017-12-05 | A position feedback device for a servo transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109870077A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237231A (en) * | 1996-09-11 | 1999-12-01 | 芬纳公司 | Mounting device |
| CN2729432Y (en) * | 2004-09-12 | 2005-09-28 | 郑州华萦化纤科技有限责任公司 | Gear with function for removing sideshake of subgear |
| CN201720557U (en) * | 2010-07-19 | 2011-01-26 | 南京山能精密机床有限公司 | Double-piece combined worm helicoidal gear of gear grinding machine |
| CN104121355A (en) * | 2013-04-27 | 2014-10-29 | 北京自动化控制设备研究所 | Gear mechanism capable of eliminating position feedback clearance |
| CN204387289U (en) * | 2014-12-29 | 2015-06-10 | 安徽鼎梁生物能源科技开发有限公司 | A kind of cone gear lash adjusting device |
| CN204524988U (en) * | 2015-03-05 | 2015-08-05 | 宁波海天精工股份有限公司 | A kind of rack pinion closed loop detect mechanism |
| CN106402363A (en) * | 2016-11-10 | 2017-02-15 | 北京特种机械研究所 | Gear transmission return clearance eliminating structure |
| CN206054707U (en) * | 2016-08-31 | 2017-03-29 | 威海华陆数控机床有限公司 | Single shaft double-helical-tooth helical gear backlash eliminating equipment |
-
2017
- 2017-12-05 CN CN201711269461.9A patent/CN109870077A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237231A (en) * | 1996-09-11 | 1999-12-01 | 芬纳公司 | Mounting device |
| CN2729432Y (en) * | 2004-09-12 | 2005-09-28 | 郑州华萦化纤科技有限责任公司 | Gear with function for removing sideshake of subgear |
| CN201720557U (en) * | 2010-07-19 | 2011-01-26 | 南京山能精密机床有限公司 | Double-piece combined worm helicoidal gear of gear grinding machine |
| CN104121355A (en) * | 2013-04-27 | 2014-10-29 | 北京自动化控制设备研究所 | Gear mechanism capable of eliminating position feedback clearance |
| CN204387289U (en) * | 2014-12-29 | 2015-06-10 | 安徽鼎梁生物能源科技开发有限公司 | A kind of cone gear lash adjusting device |
| CN204524988U (en) * | 2015-03-05 | 2015-08-05 | 宁波海天精工股份有限公司 | A kind of rack pinion closed loop detect mechanism |
| CN206054707U (en) * | 2016-08-31 | 2017-03-29 | 威海华陆数控机床有限公司 | Single shaft double-helical-tooth helical gear backlash eliminating equipment |
| CN106402363A (en) * | 2016-11-10 | 2017-02-15 | 北京特种机械研究所 | Gear transmission return clearance eliminating structure |
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Application publication date: 20190611 |