CN112722330A - Angular displacement actuator with adjustable angle - Google Patents
Angular displacement actuator with adjustable angle Download PDFInfo
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- CN112722330A CN112722330A CN202011574541.7A CN202011574541A CN112722330A CN 112722330 A CN112722330 A CN 112722330A CN 202011574541 A CN202011574541 A CN 202011574541A CN 112722330 A CN112722330 A CN 112722330A
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000009467 reduction Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 239000003638 chemical reducing agent Substances 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 description 3
- RZVHIXYEVGDQDX-UHFFFAOYSA-N 9,10-anthraquinone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 RZVHIXYEVGDQDX-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C19/00—Aircraft control not otherwise provided for
- B64C19/02—Conjoint controls
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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
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
- F16H37/124—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types for interconverting rotary motion and reciprocating motion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Radar, Positioning & Navigation (AREA)
- Transmission Devices (AREA)
Abstract
The invention belongs to the technical field of aviation electric actuators, and particularly relates to an angle-adjustable angular displacement actuator. The invention has compact structure, small volume, light weight, large output torque and strong bending moment resistance, and can make up the transmission defects of the multistage straight teeth and harmonic speed reducer.
Description
Technical Field
The invention belongs to the technical field of aviation electric actuators, and particularly relates to an angular displacement actuator with an adjustable angle, which is used for an actuating mechanism of a flight control system.
Background
The electric actuator has the advantages of simple structure, high reliability, easy control, good maintainability and the like, gradually replaces the traditional hydraulic actuator, and is widely applied to the executing mechanism of the guidance and control system of the aviation and aerospace aircraft.
At present, an angular displacement output actuator is mainly driven by a multi-stage straight-tooth gear or a harmonic reducer. The multi-stage straight tooth transmission has the problems of low transmission efficiency, large volume, heavy mass, small output torque and the like; although the harmonic reducer can output a larger transmission ratio, the harmonic reducer has poor bending moment resistance, and is mainly used for working conditions with smaller output torque. With the development of modern aircrafts in the directions of ultra high speed, high maneuverability, light weight, miniaturization and the like, the existing actuators are difficult to meet the requirements of the modern aircrafts. The invention finally converts the output of the direct current motor into the rotation of the output shaft through the straight tooth speed reduction, the screw rod pair and the gear rack, the screw rod nut of the screw rod pair is fixedly connected with the rack, the rack is matched with the gear of the output shaft, and the output adjusting device is used for adjusting the deflection angle of the output shaft and output limiting protection. The invention has compact structure, small volume, light weight, large output torque and strong bending moment resistance, and can make up the transmission defects of the multistage straight teeth and harmonic speed reducer. Meanwhile, the device has the capabilities of adjustable output deflection angle and limiting protection.
Disclosure of Invention
The purpose of the invention is: the invention provides an angular displacement actuator with an adjustable angle, which changes the deflection angle of an output shaft by adjusting an output adjusting device and simultaneously has the function of output limiting protection by the output adjusting device.
The technical scheme of the invention is as follows:
an angular displacement actuator with an adjustable angle comprises a direct current brushless motor (1), a speed reducing mechanism (2), a screw rod (3), a screw rod nut (4), an adjusting device (5), a limiting block (6), a rack (7), an output shaft (8) and a gear (9);
the output shaft of direct current brushless motor (1) be connected with reduction gears (2), reduction gears (2) be connected with lead screw (3), screw-nut (4) set up on lead screw (3) to can follow lead screw (3) axial displacement, screw-nut (4) both ends be provided with stopper (6), lead screw (3) both ends be provided with adjusting device (5) that stopper (6) match, adjusting device (5) length adjustable, rack (7) set up on screw-nut (4), rack (7) and gear (9) meshing, output shaft (8) be connected with gear (9) cooperation.
Further, adjusting device (5) include lock nut (10), spacing seat (11), two springs (12), ejector pin (13), limit switch (14), adjusting screw (15), spacing seat (11) center be provided with the through-hole, spacing seat (11) inside be provided with two spring grooves, spring groove symmetry set up in the through-hole both sides, two springs (12) set up respectively in two spring grooves, adjusting screw (15) set up in the through-hole, adjusting screw (15) one end be connected with lock nut (10), the other end is connected with ejector pin (13), ejector pin (13) are connected with limit switch (14).
Furthermore, the adjusting device (5) comprises a locking nut (10), a limiting seat (11), a mandril (13), a limiting switch (14) and an adjusting screw (15), wherein a through hole is arranged at the center of the limiting seat (11), the through hole is a threaded hole, two guide holes are arranged on the limiting seat (11), the guide holes are symmetrically arranged at two sides of the through hole,
the adjusting screw (15) is provided with an external thread, is arranged in the through hole and is matched with the internal thread of the through hole, one end of the adjusting screw (15) is connected with the locking nut (10), the other end of the adjusting screw is connected with the ejector rod (13), the ejector rod (3) comprises two parallel support arms, the two support arms are arranged in the through guide hole and can slide in the guide hole, and the limit switch (14) is connected and arranged at the end part of the ejector rod (13);
adjusting screw (15) be provided with the external screw thread, set up in the through-hole, match with the internal thread of through-hole, adjusting screw (15) one end be connected with lock nut (10), the other end is connected with ejector pin (13), ejector pin (3) include the support arm of two parallels, two support arm settings lead to in the guiding hole to can slide in the guiding hole, limit switch (14) are connected and are set up the tip at ejector pin (13).
Further, adjusting device (5) include lock nut (10), spacing seat (11), a spring (12), ejector pin (13), limit switch (14), adjusting screw (15), spacing seat (11) center be provided with the through-hole, spacing seat (11) on be provided with an annular spring groove, annular spring groove encircles in the through-hole outside, spring (12) set up in annular spring inslot, adjusting screw (15) set up in the through-hole, adjusting screw (15) one end be connected with lock nut (10), the other end is connected with ejector pin (13), ejector pin (13) are connected with limit switch (14).
Furthermore, the end face of the limiting seat (11) is provided with a circular groove for installing the locking nut (10).
Furthermore, a groove is formed in the ejector rod (13), the end part of the adjusting screw (15) is inserted into the groove, so that the adjusting screw (15) is detachably connected with the ejector rod (13), the adjusting screw (15) is convenient to replace, and the maintainability and the interchangeability are improved.
Furthermore, scales are arranged on the outer surface of the ejector rod (13), and the moving length of the adjusting screw (15) can be measured.
Furthermore, the length of the rack (7) is the same as that of the lead screw nut (4), so that the output angle of the output shaft (8) is the maximum.
Further, the speed reducing mechanism (2) adopts 2-stage or 3-stage straight-tooth gear speed reduction.
Furthermore, the lead screw (3) adopts a trapezoidal lead screw shaft, so that the output shaft (8) can be ensured to have good self-locking performance under the condition of power failure.
The invention has the beneficial effects that:
the actuator provided by the invention has the advantages of compact structure, small volume, light weight, small motor torque input and large torque output. Can meet the requirements of large moment, high frequency band, light weight and the like of modern aircrafts. Meanwhile, the actuator has the functions of adjustable output angle and output limit protection.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic view of a first embodiment of an adjustment device;
FIG. 3 is a schematic view of a second embodiment of the adjustment device;
FIG. 4 is a schematic view of a third embodiment of the adjustment device;
fig. 5 is a schematic view of the third embodiment of the adjusting device for assembling the limiting seat and the spring.
Detailed Description
The following detailed description of the embodiments of the present invention, such as the shapes, configurations, mutual positions and connection relationships of the components, the functions and operating principles of the components, the manufacturing processes and the operation and use methods thereof, will be further described in detail with reference to the accompanying drawings, so as to help those skilled in the art to more completely, accurately and deeply understand the concept and technical solutions of the present invention:
the present invention is described in further detail below. See fig. 1-5.
The invention provides an angular displacement actuator with an adjustable angle, which changes the deflection angle of an output shaft of the actuator and outputs limit protection by adjusting an adjusting device.
As shown in fig. 1, an angular displacement actuator with an adjustable angle comprises a direct current brushless motor 1, a speed reducing mechanism 2, a screw rod 3, a screw rod nut 4, an adjusting device 5, a limiting block 6, a rack 7, an output shaft 8 and a gear 9;
the output shaft of the brushless DC motor 1 is connected with the speed reducing mechanism 2, the speed reducing mechanism 2 is connected with the screw rod 3, the screw rod nut 4 is arranged on the screw rod 3 and can move along the axial direction of the screw rod 3, the two ends of the screw rod nut 4 are provided with the limiting blocks 6, the two ends of the screw rod 3 are provided with the adjusting devices 5 matched with the limiting blocks 6, the length of the adjusting devices 5 can be adjusted, the rack 7 is arranged on the screw rod nut 4, the rack 7 is meshed with the gear 9, and the output shaft 8 is connected with the gear 9 in a matching manner.
Direct current brushless motor 1 provides speed and moment for the actuator as the power supply, converts the speed and the moment that the actuator exported into through reduction gears 2, lead screw 3 and rack and pinion, and adjusting device 5 is used for adjusting output shaft 8's deflection angle and the spacing protection of output simultaneously, screw-nut 4 on the lead screw 3 links firmly with rack 7, rack 7 and the 8 gear cooperation of output shaft, stopper 6 links firmly at screw-nut 4 both ends, changes output shaft 8's deflection angle through adjusting device 5's adjusting screw 15, stopper 6 and adjusting device 5's limit switch 14 contact, and limit switch 14 triggers, and direct current brushless motor 1 stops the output, plays the effect of the spacing protection of output.
The working principle of the invention is as follows: an angle adjustable angle displacement actuator, this kind of angle displacement output actuator can change linear displacement output into angle displacement output, changes actuator output shaft 8's deflection angle through adjusting device 5, and adjusting device 5 possesses the function of exporting spacing protection simultaneously.
The invention takes a direct current brushless motor 1 as a power source, the speed and the torque output by the direct current brushless motor 1 are transmitted by a straight-tooth gear speed reducing mechanism 2, and the straight-tooth gear speed reducing mechanism 2 drives a trapezoidal screw rod 3 to rotate; the trapezoidal screw rod 3 pushes the screw rod nut 4 to do linear motion along the trapezoidal screw rod 3; the rack 7 and the screw nut 4 do linear motion together, the rack 7 drives the gear 9 to rotate, the linear motion of the rack 7 is converted into the rotary motion of the gear 9, and finally the output shaft 8 outputs the required angle and torque.
First embodiment of the adjusting device:
as shown in fig. 2, the adjusting device 5 includes a lock nut 10, a limit seat 11, two springs 12, a top rod 13, a limit switch 14 and an adjusting screw 15, the center of the limit seat 11 is provided with a through hole, the limit seat 11 is provided with two spring grooves, the spring grooves are symmetrically arranged on two sides of the through hole, the two springs 12 are respectively arranged in the two spring grooves, the adjusting screw 15 is arranged in the through hole, one end of the adjusting screw 15 is connected with the lock nut 10, the other end of the adjusting screw is connected with the top rod 13, and the top rod 13 is connected with the limit switch 14.
Through adjusting the adjusting screw 15 of the adjusting device 5, the adjusting screw 15 drives the ejector rod 13 to do linear motion along the spring groove, and the spring groove plays a role of guiding at the same time to increase or reduce the relative position of the limit switch 14 and the limit block 6, so that the linear displacement of the lead screw nut 4 is increased or reduced, and finally the deflection angle of the output shaft 8 is increased or reduced. The ejector rod 13 compresses the spring 12 in the spring groove, the elastic force generated by the spring 12 and the locking force generated between the locking nut 10 and the adjusting screw 15 form a pair of balance forces, the ejector rod 13 is guaranteed not to move randomly, and finally the relative position of the limit switch 14 and the limit block 6 is guaranteed. When the deflection range of the output shaft 8 exceeds a specified angle, the limit block 6 triggers the limit switch 14 to be disconnected, the direct current brushless motor 1 stops rotating, and the output shaft 8 stops rotating.
Second embodiment of the adjusting device:
as shown in fig. 3, the adjusting device 5 comprises a lock nut 10, a limiting seat 11, a top rod 13, a limiting switch 14 and an adjusting screw 15, wherein a through hole is arranged at the center of the limiting seat 11, the through hole is a threaded hole, two guide holes are arranged on the limiting seat 11, the guide holes are symmetrically arranged at two sides of the through hole,
adjusting screw 15 be provided with the external screw thread, set up in the through-hole, match with the internal thread of through-hole, 15 one end of adjusting screw be connected with lock nut 10, the other end is connected with ejector pin 13, ejector pin 3 include the support arm of two parallels, two support arm settings in leading to the guiding hole to can slide in the guiding hole, limit switch 14 connects the tip that sets up at ejector pin 13.
Through adjusting the adjusting screw 15 of the adjusting device 5, the adjusting screw 15 drives the ejector rod 13 to make linear motion along the guide hole, and then the relative position of the limit switch 14 and the limit block 6 is increased or decreased, so that the linear displacement of the lead screw nut 4 is increased or decreased, and finally the deflection angle of the output shaft 8 is increased or decreased. The locking force generated between the adjusting screw 15 and the threaded hole arranged at the center of the limiting seat 11 ensures that the ejector rod 13 does not move randomly, and finally ensures the relative position of the limiting switch 14 and the limiting block 6. When the deflection range of the output shaft 8 exceeds a specified angle, the limit block 6 triggers the limit switch 14 to be disconnected, the direct current brushless motor 1 stops rotating, and the output shaft 8 stops rotating.
Third embodiment of the adjusting device:
as shown in fig. 4, the adjusting device 5 includes a lock nut 10, a limiting seat 11, a spring 12, a top rod 13, a limit switch 14, and an adjusting screw 15, the center of the limiting seat 11 is provided with a through hole, the limiting seat 11 is provided with an annular spring groove, the annular spring groove is arranged outside the through hole, the spring is arranged in the annular spring groove, the adjusting screw (15) is arranged in the through hole, one end of the adjusting screw 15 is connected with the lock nut 10, the other end is connected with the top rod 13, and the top rod 13 is connected with the limit switch 14.
Through adjusting the adjusting screw 15 of the adjusting device 5, the adjusting screw 15 drives the ejector rod 1) to do linear motion along the annular spring groove, and the spring groove plays a role in guiding at the same time, so that the relative position of the limit switch 14 and the limit block 6 is increased or reduced, the linear displacement of the lead screw nut 4 is increased or reduced, and finally the deflection angle of the output shaft 8 is increased or reduced. The ejector rod 13 compresses the spring 12 arranged in the annular spring groove, the elastic force generated by the spring 12 and the locking force generated between the locking nut 10 and the adjusting screw 15 form a pair of balance forces, the ejector rod 13 is guaranteed not to move randomly, and finally the relative position of the limit switch 14 and the limit block 6 is guaranteed. When the deflection range of the output shaft 8 exceeds a specified angle, the limit block 6 triggers the circuit of the limit switch 14 to be disconnected, the motor 1 stops rotating, and the output shaft 8 stops rotating.
Further, the end face of the limiting seat 11 is provided with a circular groove for installing the locking nut 10.
Furthermore, a groove is formed in the ejector rod 13, and the end of the adjusting screw 15 is inserted into the groove, so that the adjusting screw 15 is detachably connected with the ejector rod 13, the adjusting screw is convenient to replace, and the maintainability and the interchangeability are improved.
Furthermore, the outer surface of the ejector rod 13 is provided with scales, so that the moving length of the adjusting screw can be measured.
Further, the length of the rack 7 is the same as that of the lead screw nut 4, so that the output angle of the output shaft 8 is the largest.
Further, the speed reduction mechanism 2 adopts 2-stage or 3-stage straight-tooth gear speed reduction.
Further, the lead screw 3 adopts a trapezoidal lead screw shaft, and an output shaft has good self-locking performance under the condition of power failure.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (10)
1. An angularly adjustable angular displacement actuator, comprising: the device comprises a direct-current brushless motor (1), a speed reducing mechanism (2), a screw rod (3), a screw rod nut (4), an adjusting device (5), a limiting block (6), a rack (7), an output shaft (8) and a gear (9);
the output shaft of direct current brushless motor (1) be connected with reduction gears (2), reduction gears (2) be connected with lead screw (3), screw-nut (4) set up on lead screw (3) to can follow lead screw (3) axial displacement, screw-nut (4) both ends be provided with stopper (6), lead screw (3) both ends be provided with adjusting device (5) that stopper (6) match, adjusting device (5) length adjustable, rack (7) set up on screw-nut (4), rack (7) and gear (9) meshing, output shaft (8) be connected with gear (9) cooperation.
2. An angularly adjustable angular displacement actuator according to claim 1, wherein: adjusting device (5) include lock nut (10), spacing seat (11), two springs (12), ejector pin (13), limit switch (14), adjusting screw (15), spacing seat (11) center be provided with the through-hole, spacing seat (11) inside be provided with two spring grooves, spring groove symmetry set up in the through-hole both sides, two springs (12) set up respectively in two spring grooves, adjusting screw (15) set up in the through-hole, adjusting screw (15) one end be connected with lock nut (10), the other end is connected with ejector pin (13), ejector pin (13) are connected with limit switch (14).
3. An angularly adjustable angular displacement actuator according to claim 1, wherein: the adjusting device (5) comprises a locking nut (10), a limiting seat (11), a mandril (13), a limiting switch (14) and an adjusting screw (15), wherein the center of the limiting seat (11) is provided with a through hole which is a threaded hole, the limiting seat (11) is provided with two guide holes, the guide holes are symmetrically arranged at the two sides of the through hole,
adjusting screw (15) be provided with the external screw thread, set up in the through-hole, match with the internal thread of through-hole, adjusting screw (15) one end be connected with lock nut (10), the other end is connected with ejector pin (13), ejector pin (3) include the support arm of two parallels, two support arm settings lead to in the guiding hole to can slide in the guiding hole, limit switch (14) are connected and are set up the tip at ejector pin (13).
4. An angularly adjustable angular displacement actuator according to claim 1, wherein: adjusting device (5) include lock nut (10), spacing seat (11), a spring (12), ejector pin (13), limit switch (14), adjusting screw (15), spacing seat (11) center be provided with the through-hole, spacing seat (11) on be provided with an annular spring groove, annular spring groove encircles in the through-hole outside, spring (12) set up in annular spring inslot, adjusting screw (15) set up in the through-hole, adjusting screw (15) one end be connected with lock nut (10), the other end is connected with ejector pin (13), ejector pin (13) are connected with limit switch (14).
5. An angularly adjustable angular displacement actuator according to any of claims 2 to 4, wherein: the end face of the limiting seat (11) is provided with a circular groove for installing the locking nut (10).
6. An angularly adjustable angular displacement actuator according to any of claims 2 to 4, wherein: the ejector rod (13) is provided with a groove, and the end part of the adjusting screw (15) is inserted into the groove, so that the adjusting screw (15) is detachably connected with the ejector rod (13).
7. An angularly adjustable angular displacement actuator according to any of claims 2 to 4: scales are arranged on the outer surface of the ejector rod (13) and can be used for measuring the moving length of the adjusting screw (15).
8. An angularly adjustable angular displacement actuator according to claim 1, wherein: the length of the rack (7) is the same as that of the screw rod nut (4), so that the output angle of the output shaft (8) is the largest.
9. An angularly adjustable angular displacement actuator according to claim 1, wherein: the speed reducing mechanism (2) adopts 2-level or 3-level straight-tooth gears for speed reduction.
10. An angularly adjustable angular displacement actuator according to claim 1, wherein: the lead screw (3) adopts a trapezoidal lead screw shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011574541.7A CN112722330A (en) | 2020-12-25 | 2020-12-25 | Angular displacement actuator with adjustable angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011574541.7A CN112722330A (en) | 2020-12-25 | 2020-12-25 | Angular displacement actuator with adjustable angle |
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| Publication Number | Publication Date |
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| CN112722330A true CN112722330A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011574541.7A Pending CN112722330A (en) | 2020-12-25 | 2020-12-25 | Angular displacement actuator with adjustable angle |
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| CN (1) | CN112722330A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3745838A (en) * | 1971-12-23 | 1973-07-17 | J Brems | Reciprocating drive mechanism |
| EP1219523A1 (en) * | 2000-12-28 | 2002-07-03 | FUJI KIKO Co., Ltd. | Steering control apparatus for motor vehicle |
| US20110297516A1 (en) * | 2010-06-03 | 2011-12-08 | Honeywell International Inc. | Limit switch assembly |
| CN205841358U (en) * | 2016-07-09 | 2016-12-28 | 天津市汇通仪器设备公司 | A kind of film type pneumatic actuating mechanism |
| CN106555843A (en) * | 2017-01-19 | 2017-04-05 | 福州大学 | A kind of low speed Intermittent rotary mechanism and its method of work |
| CN107453536A (en) * | 2017-08-24 | 2017-12-08 | 北京动力机械研究所 | High efficiency motor mechanism transmission mechanism |
| CN109158887A (en) * | 2018-09-19 | 2019-01-08 | 江苏华佛智能装备有限公司 | The high-end manufacture special plane of ten five-axle linkage of intelligent control |
| CN109505940A (en) * | 2018-12-05 | 2019-03-22 | 兰州飞行控制有限责任公司 | A kind of rocker-arm angular displacement actuator |
| CN211879260U (en) * | 2020-04-28 | 2020-11-06 | 广州市中森模具制造有限公司 | Stroke limiting mechanism for engineering machinery |
-
2020
- 2020-12-25 CN CN202011574541.7A patent/CN112722330A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3745838A (en) * | 1971-12-23 | 1973-07-17 | J Brems | Reciprocating drive mechanism |
| EP1219523A1 (en) * | 2000-12-28 | 2002-07-03 | FUJI KIKO Co., Ltd. | Steering control apparatus for motor vehicle |
| US20110297516A1 (en) * | 2010-06-03 | 2011-12-08 | Honeywell International Inc. | Limit switch assembly |
| CN205841358U (en) * | 2016-07-09 | 2016-12-28 | 天津市汇通仪器设备公司 | A kind of film type pneumatic actuating mechanism |
| CN106555843A (en) * | 2017-01-19 | 2017-04-05 | 福州大学 | A kind of low speed Intermittent rotary mechanism and its method of work |
| CN107453536A (en) * | 2017-08-24 | 2017-12-08 | 北京动力机械研究所 | High efficiency motor mechanism transmission mechanism |
| CN109158887A (en) * | 2018-09-19 | 2019-01-08 | 江苏华佛智能装备有限公司 | The high-end manufacture special plane of ten five-axle linkage of intelligent control |
| CN109505940A (en) * | 2018-12-05 | 2019-03-22 | 兰州飞行控制有限责任公司 | A kind of rocker-arm angular displacement actuator |
| CN211879260U (en) * | 2020-04-28 | 2020-11-06 | 广州市中森模具制造有限公司 | Stroke limiting mechanism for engineering machinery |
Non-Patent Citations (1)
| Title |
|---|
| 由环家: "飞机全电刹车机电作动器结构设计", 《装备制造技术》, no. 12, 15 December 2016 (2016-12-15) * |
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Application publication date: 20210430 |