CN105545524A - Electromechanical servo type engine flow adjusting mechanism - Google Patents
Electromechanical servo type engine flow adjusting mechanism Download PDFInfo
- Publication number
- CN105545524A CN105545524A CN201410601778.8A CN201410601778A CN105545524A CN 105545524 A CN105545524 A CN 105545524A CN 201410601778 A CN201410601778 A CN 201410601778A CN 105545524 A CN105545524 A CN 105545524A
- Authority
- CN
- China
- Prior art keywords
- gear
- output shaft
- adjusting mechanism
- gearwheel
- housing
- Prior art date
- 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.)
- Pending
Links
Landscapes
- Gear Transmission (AREA)
Abstract
The invention belongs to the technical field of spaceflight servos, and provides an electromechanical servo type engine flow adjusting mechanism which is small in size, compact in structure and capable of achieving high precision and high response speed. The electromechanical servo type engine flow adjusting mechanism comprises an adjusting mechanism body (1), a control driver (2), a shock absorber (3), screws (4), a shock absorber frame (5) and a shell (15). The control driver (2) is connected with the adjusting mechanism body (1) through the shock absorber (3), the shock absorber frame (5) and the screws (4). According to the scheme, by means of the integrated design of the adjusting mechanism body and the control driver, the overall structure is compact, and the mechanism occupied space is reduced; the control driver is flexibly connected with the adjusting mechanism body, and the external vibration impact and other severe environments can be attenuated to be within the tolerable range; and it is guaranteed that under the conditions of the severe environments, connection of electronic components in the control driver is reliable, and work is normal.
Description
Technical field
The invention belongs to space flight servo techniques field, be specifically related to a kind of electromechanical servo formula motor flow control device.
Background technique
Along with the requirement of the system such as aerospace craft, carrier rocket to weight is more and more higher, solid rocket ramjet than the advantage such as leaping high, volume is little, lightweight, structure is simple, reliable operation, storage characteristics are good, cost of production is low, becomes the preferred power units of the systems such as following aerospace craft with it.Flow control device is as one of the crucial power unit of solid rocket ramjet, and be mainly used to control engine gas flow, to adjust the working state of motor, its service behaviour and reliability directly affect service behaviour and the reliability of solid rocket ramjet.
Abroad, French Onera company explores the adjustable Ducted rocket of flow becoming larynx face formula and non-formula of being jammed; The carrier rocket of new generation of Europe development have employed slip ring valve flow adjustment device; The solid rocket ramjet of Germany's development have employed slip ring valve as gas consumption adjusting valve.Domestic, the units such as BJ University of Aeronautics & Astronautics, Northwestern Polytechnical University, Harbin Institute of Technology have carried out the research of sliding plate valve flow control device.
For features such as solid rocket ramjet volume are little, lightweight, flow control device must adapt to the requirement of Ducted rocket narrow installation space, work under bad environment, carries out miniaturization, lighting, High Reliability Design.Tradition flow control device adopts stepper motor as power source, and the shortcomings such as its low frequency performance is poor, precision is low, volume is large, can not meet the requirement such as miniaturization, high reliability.
The present invention proposes a kind of innovation scheme of electromechanical servo formula motor flow control device, the program adopts actuating motor as power source, and by flow control device and control and drive system integrated design, reduces taken up space; Adopt the scheme of spur gear+harmonic reduction gear, make controlling mechanism compact structure; Output shaft and potentiometer adopt Double-gear anti-backlash structure to ensure measuring accuracy, improve the precision of Flow-rate adjustment.
Summary of the invention
Technical problem to be solved by this invention is, not enough for prior art, provides that a kind of volume is little, compact structure, can realize the electromechanical servo formula motor flow control device of highi degree of accuracy, high response speed.
The technical solution adopted in the present invention is:
A kind of electromechanical servo formula motor flow control device, comprise controlling mechanism, control and drive system, damper assembly, screw, shock absorber frame and housing, wherein control and drive system is connected with controlling mechanism by dampening assembly, damping skeleton, screw, controlling mechanism, control and drive system, damper assembly, screw, shock absorber frame are all installed in housing, and described housing is divided into left, center, right three part.
Described controlling mechanism comprises actuating motor, motor pinion, transition gear, gearwheel, harmonic speed reducer wave-generator, just wheel, flexbile gear, final-stage gear, tooth sector output shaft and Double-gear anti-backlash structure, described servo electrolysis is installed on the right side of housing, its upper end is provided with motor pinion, motor pinion and its excessive gear near housing medial side suitable, gearwheel, axle, harmonic speed reducer wave-generator, steel wheel, flexbile gear, final-stage gear, tooth sector output shaft is located at the intermediate portion of housing, gearwheel is connected on axle by key A, harmonic speed reducer wave-generator is connected in the below of gearwheel on axle by key B, be located in the middle of flexbile gear, the outside of harmonic generator is meshed with the inner side of flexbile gear, steel wheel to be located at outside flexbile gear and to be meshed with it, final-stage gear is located at outside flexbile gear and the grand key C that crosses connects, final-stage gear is meshed with the gearwheel end of tooth sector output shaft, Double-gear anti-backlash structure is meshed with the pinion end of tooth sector output shaft.
Described Double-gear anti-backlash structure comprises angular displacement sensor, gear A, gear B and screw, and gear A, gear B are fixed by screws on angular displacement sensor, and gear A is located at gear B lower end.
Use Double-gear anti-backlash structure between described tooth sector output shaft and angular displacement sensor, carry out angle enlargement by gear, the several angle that gear, gear staggered when assembling carries out installation group, becomes Double-gear anti-backlash structure.
The invention has the beneficial effects as follows:
(1) program controlling mechanism and the integrated design of control and drive system device, compact overall structure, reducing mechanism takes up room;
(2) control and drive system and controlling mechanism are by flexibly connecting, and the rugged environment such as external vibration impact can be decayed to can in tolerance range; Ensure in harsh environments, the electronic parts and components of control and drive system inside connect reliable, normally work;
(3) flow control device selects actuating motor as power source, and specific power is high, lightweight, and reliable operation, compare stepper motor and there is good low frequency operation performance, larger overload capacity and higher precision;
(4) scheme that the main deceleration of the preposition spur gear+harmonic speed reducer of two-stage+final stage spur gear slows down selected by controlling mechanism internal reduction device, compact structure, and output torque is large, meets flow control device high-torque, slow-revving requirement;
(5) passing through Double-gear anti-backlash structure between output shaft and angular displacement sensor, amplifying on the basis exporting angle, eliminating the gap between gears meshing.
Accompanying drawing explanation
Fig. 1 is electromechanical servo formula motor flow control device composition sketch
Fig. 2 is electromechanical servo formula motor flow control device structural representation
Fig. 3 is electromechanical servo formula motor flow control device Double-gear anti-backlash structural drawing
In figure: 1. controlling mechanism, 2. control and drive system, 3. vibration damper, 4. screw, 5. vibration damper skeleton, 6. actuating motor, 7. motor pinion, 8. transition gear, 9. gearwheel, 10. axle, 11. key A, 12. key B, 13. harmonic speed reducer wave-generators, 14. steel wheels, 15. housings, 16. angular displacement sensors, 17. gear A, 18. gear B, 19. tooth sector output shafts, 20. final-stage gears, 21. key C, 22. flexbile gears, 23. screws, 24. Double-gear anti-backlash structures.
Embodiment
Below in conjunction with drawings and Examples, one provided by the invention is introduced:
A kind of electromechanical servo formula motor flow control device, comprise controlling mechanism 1, control and drive system 2, damper assembly 3, screw 4, shock absorber frame 5 and housing 15, wherein control and drive system 2 is connected with controlling mechanism 1 by dampening assembly 3, damping skeleton 5, screw 4, controlling mechanism 1, control and drive system 2, damper assembly 3, screw 4, shock absorber frame 5 are all installed in housing 15, and described housing 15 is divided into left, center, right three part.
Described controlling mechanism 1 comprises actuating motor 6, motor pinion 7, transition gear 8, gearwheel 9, harmonic speed reducer wave-generator 13, just takes turns 14, flexbile gear 22, final-stage gear 20, tooth sector output shaft 19 and Double-gear anti-backlash structure 24, described servo electricity 6 solutions are installed on the right side of housing 15, its upper end is provided with motor pinion 7, motor pinion 7 is suitable with its excessive gear 8 near housing 15 medial side, gearwheel 9, axle 10, harmonic speed reducer wave-generator 13, steel wheel 14, flexbile gear 22, final-stage gear 20, tooth sector output shaft 19 is located at the intermediate portion of housing 15, gearwheel 9 is connected on axle 10 by key A11, harmonic speed reducer wave-generator 13 is connected in the below of gearwheel 9 on axle 10 by key B12, axle 10 is located in the middle of flexbile gear 22, the outside of harmonic generator 13 is meshed with the inner side of flexbile gear 22, steel wheel 14 to be located at outside flexbile gear 22 and to be meshed with it, final-stage gear 20 is located at outside flexbile gear 22 and the grand key C21 that crosses connects, final-stage gear 20 is meshed with the gearwheel end of tooth sector output shaft 19, Double-gear anti-backlash structure 24 is meshed with the pinion end of tooth sector output shaft 19.
Described Double-gear anti-backlash structure 24 comprises angular displacement sensor 16, gear A 17, gear B 18 and screw 23, and gear A 17, gear B 18 are fixed on angular displacement sensor 16 by screw 23, and gear A 18 is located at gear B 17 lower end.
Use Double-gear anti-backlash structure between described tooth sector output shaft 19 and angular displacement sensor 16, carry out angle enlargement by gear 18, the several angle that gear 18, gear 17 staggered when assembling carries out installation group, becomes Double-gear anti-backlash structure.
This programme is made up of controlling mechanism 1, control and drive system 2, damper assembly 3.Controlling mechanism 1 by actuating motor 6, motor pinion 7, transition gear 8, gearwheel 9, harmonic speed reducer wave-generator 13, just take turns 14, flexbile gear 22, final-stage gear 20, tooth sector output shaft 19, Double-gear anti-backlash structure 24 etc. form.Double-gear anti-backlash structure 24 comprises gear 18, gear 17, screw 23.
When flow control device normally works, control and drive system 2 receives the control command that engine control system sends, through internal control algorithm, draw control logic signal, actuating motor 6 is driven to operate, rotation is passed to gearwheel 9 by transition gear 8 by motor pinion 7, gearwheel 9 and harmonic speed reducer wave-generator 13 are by key 11, key 12 is connected on axle 10, harmonic speed reducer wave-generator 13 rotates with gearwheel 9, flexbile gear 22 is driven to rotate by meshing relation, and by key 21, rotation is passed to final-stage gear 20, final-stage gear 20 drives tooth sector output shaft 19 to move by meshing relation, thus drive the modulating valve be connected with output shaft to operate, the opening area of adjustment motor venturi, reach the object of Flow-rate adjustment.Tooth sector output shaft drives angular displacement sensor 16 to rotate by gear 18, gear 17, and the rotation angle after amplification is fed back to control and drive system 2 by angular displacement sensor 16, carries out position-force control, the precision of guaranteed flow controlling mechanism.
In the course of the work, there is larger vibration in motor, be guaranteed flow controlling mechanism reliably working, control and drive system 2 is connected employing with controlling mechanism 1 and flexibly connects technology.Controller is connected with controlling mechanism 1 by T-shaped vibration damper 3, vibration damper skeleton 5, screw 4, can effective vibration damping.
In order to the little torque of actuating motor 6, high rotating speed are converted to large torque, the slow-speed of revolution, adopt the scheme of the preposition gear+harmonic speed reducer of two-stage main deceleration+final stage special shape gear transmission, while meeting output torque and rate request, make that controlling mechanism structure 1 is compact, volume is little.
In order to improve testing precision, Double-gear anti-backlash structure 24 is used between tooth sector output shaft 19 and angular displacement sensor 16, angle enlargement is carried out by gear 18, and the several angle that gear 18, gear 17 staggered when assembling carries out installations composition Double-gear anti-backlash structure 24, the gap of gears meshing between elimination with tooth sector output shaft 19; Adopt Double-gear anti-backlash structure, improve the precision of position probing.
Vibration damper, flow control valve in electromechanical servo formula motor flow control device, existing invention all has and relates to or have off-the-shelf, can as parts of the present invention or a part.
Claims (4)
1. an electromechanical servo formula motor flow control device, it is characterized in that: comprise controlling mechanism (1), control and drive system (2), vibration damper (3), screw (4), vibration damper skeleton (5) and housing (15), wherein control and drive system (2) is connected with controlling mechanism (1) by vibration damper (3), vibration damping skeleton (5), screw (4).
2. a kind of electromechanical servo formula motor flow control device according to claim 1, is characterized in that: controlling mechanism (1) comprises actuating motor (6) in housing (15) and housing (15), motor pinion (7), transition gear (8), gearwheel (9), harmonic speed reducer wave-generator (13), just wheel (14), flexbile gear (22), final-stage gear (20), tooth sector output shaft (19) and Double-gear anti-backlash structure (24), described actuating motor (6) is installed on housing (15) right side, its upper end is provided with motor pinion (7), motor pinion (7) is meshed with its transition gear (8) near housing (15) medial side, gearwheel (9), axle (10), harmonic speed reducer wave-generator (13), steel wheel (14), flexbile gear (22), final-stage gear (20), tooth sector output shaft (19) is located at the intermediate portion of housing (15), gearwheel (9) is connected on axle (10) by key A (11), harmonic speed reducer wave-generator (13) is connected in the below of the upper gearwheel (9) of axle (10) by key B (12), axle (10) is located in the middle of flexbile gear (22), the outside of harmonic generator (13) is meshed with the inner side of flexbile gear (22), firm wheel (14) is located at flexbile gear (22) outside and is meshed with it, final-stage gear (20) is located at flexbile gear (22) outside and is connected by key C (21), final-stage gear (20) is meshed with the gearwheel end of tooth sector output shaft (19), Double-gear anti-backlash structure (24) is meshed with the pinion end of tooth sector output shaft (19).
3. a kind of electromechanical servo formula motor flow control device according to claim 1, it is characterized in that: described Double-gear anti-backlash structure (24) comprises angular displacement sensor (16), gear A (17), gear B (18) and screw (23), gear A (17), gear B (18) are located on the output shaft of angular displacement sensor (16), gear A (17) be connected with gear B (18) by screw (23), gear A (18) is located at gear B (17) lower end.
4. a kind of electromechanical servo formula motor flow control device according to Claims 2 or 3, it is characterized in that: between tooth sector output shaft (19) and angular displacement sensor (16), use Double-gear anti-backlash structure, angle enlargement is carried out by gear (18), the several angle that gear (18), gear (17) staggered when assembling is installed, composition Double-gear anti-backlash structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410601778.8A CN105545524A (en) | 2014-10-31 | 2014-10-31 | Electromechanical servo type engine flow adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410601778.8A CN105545524A (en) | 2014-10-31 | 2014-10-31 | Electromechanical servo type engine flow adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105545524A true CN105545524A (en) | 2016-05-04 |
Family
ID=55824988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410601778.8A Pending CN105545524A (en) | 2014-10-31 | 2014-10-31 | Electromechanical servo type engine flow adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105545524A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224127A (en) * | 2016-09-09 | 2016-12-14 | 北京精密机电控制设备研究所 | A kind of solid rocket ramjet gas flow adjusting means |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0127495A1 (en) * | 1983-04-22 | 1984-12-05 | Regie Nationale Des Usines Renault | Servo-control system for the speed of a diesel engine by electronically regulating the fuel delivery |
| EP0137239A1 (en) * | 1983-08-26 | 1985-04-17 | Norsk Hydro A/S | Method and device for automatic level control |
| CN102478098A (en) * | 2010-11-22 | 2012-05-30 | 北京精密机电控制设备研究所 | Compact type zero side clearance parallel-shaft gear speed reducer |
| CN203718003U (en) * | 2014-01-27 | 2014-07-16 | 西安东晶测控设备有限公司 | Water injection mechanism with flow detection and flow regulation functions |
| CN105630002A (en) * | 2014-10-30 | 2016-06-01 | 北京精密机电控制设备研究所 | Variable-thrust regulating electromechanical servo mechanism of liquid rocket engine |
-
2014
- 2014-10-31 CN CN201410601778.8A patent/CN105545524A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0127495A1 (en) * | 1983-04-22 | 1984-12-05 | Regie Nationale Des Usines Renault | Servo-control system for the speed of a diesel engine by electronically regulating the fuel delivery |
| EP0137239A1 (en) * | 1983-08-26 | 1985-04-17 | Norsk Hydro A/S | Method and device for automatic level control |
| CN102478098A (en) * | 2010-11-22 | 2012-05-30 | 北京精密机电控制设备研究所 | Compact type zero side clearance parallel-shaft gear speed reducer |
| CN203718003U (en) * | 2014-01-27 | 2014-07-16 | 西安东晶测控设备有限公司 | Water injection mechanism with flow detection and flow regulation functions |
| CN105630002A (en) * | 2014-10-30 | 2016-06-01 | 北京精密机电控制设备研究所 | Variable-thrust regulating electromechanical servo mechanism of liquid rocket engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224127A (en) * | 2016-09-09 | 2016-12-14 | 北京精密机电控制设备研究所 | A kind of solid rocket ramjet gas flow adjusting means |
| CN106224127B (en) * | 2016-09-09 | 2018-06-29 | 北京精密机电控制设备研究所 | A kind of solid rocket ramjet gas flow regulating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202953172U (en) | Motor-driven steering engine | |
| CN201262223Y (en) | Clearance-eliminating transmission case | |
| CN203472983U (en) | Swing line and steel ball planetary reduction gear | |
| CN105630002B (en) | A kind of liquid-propellant rocket engine change propulsive adjusting electromechanical coupling system | |
| CN203230793U (en) | Worm and gear reducing mechanism | |
| CN201739439U (en) | Anti-backlash speed reducer | |
| CN105508542A (en) | Return-difference-free two-stage cycloidal cone gear speed reducer | |
| CN105545524A (en) | Electromechanical servo type engine flow adjusting mechanism | |
| CN102359380A (en) | Main driving mechanism of six-arm cutterhead used for shield machine | |
| CN206929300U (en) | A kind of electric steering engine transmission device | |
| CN202267876U (en) | Solar energy tracking device | |
| CN202686757U (en) | Deceleration system with self-locking function for steering engine | |
| CN205639481U (en) | Speed reducer | |
| CN106014491A (en) | Novel turbofan engine blade adjusting mechanism with variable attack angle | |
| CN204437188U (en) | A kind of elevator worm and gear speed-reduction apparatus | |
| CN204900776U (en) | Easily assemble gear motor | |
| CN204140808U (en) | electronic thermostat actuator | |
| CN204175880U (en) | A kind of twin shaft positioning and driving mechanism | |
| CN103135579A (en) | Photovoltaic panel tracking device | |
| CN204481629U (en) | A kind of realize without electric lock fixed without lock machine electric servo | |
| CN209159330U (en) | A kind of actuator for body of a motor car | |
| CN103162885B (en) | A kind of planet torque transducer | |
| CN208295049U (en) | A kind of power transmission gear-box | |
| CN105402032A (en) | Electronic throttle valve actuating mechanism | |
| CN202251686U (en) | Spiroid worm speed reducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160504 |