CN113002761A - Safety anti-sticking structure suitable for superspeed electric steering engine - Google Patents
Safety anti-sticking structure suitable for superspeed electric steering engine Download PDFInfo
- Publication number
- CN113002761A CN113002761A CN202110321325.XA CN202110321325A CN113002761A CN 113002761 A CN113002761 A CN 113002761A CN 202110321325 A CN202110321325 A CN 202110321325A CN 113002761 A CN113002761 A CN 113002761A
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- steering engine
- electric steering
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- assembly
- speed electric
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- 238000013016 damping Methods 0.000 claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 9
- 229920002379 silicone rubber Polymers 0.000 claims description 7
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 6
- 239000005060 rubber Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000000418 atomic force spectrum Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C13/00—Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers
- B64C13/24—Transmitting means
- B64C13/38—Transmitting means with power amplification
- B64C13/50—Transmitting means with power amplification using electrical energy
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Aviation & Aerospace Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention provides a safety anti-sticking structure suitable for an ultra-high-speed electric steering engine, which comprises a power assembly, a transmission assembly, a body and a stop block assembly, wherein the transmission assembly is arranged on the body, the stop block assembly is arranged between the transmission assembly and the body, the power assembly is in driving connection with the transmission assembly, the stop block assembly comprises a base, a damping part and an upper supporting seat, and the damping part is arranged on the base through the upper supporting seat.
Description
Technical Field
The invention relates to a steering engine limiting mechanism in the field of flight of aircrafts, in particular to a safe anti-clamping stagnation structure suitable for an ultrahigh-speed electric steering engine.
Background
Under the flying state of the aircraft and under the action of a control instruction, the rudder shaft is driven by the motor to rotate at a high speed through the worm and gear combination.
In the prior art, in order to prevent the rotation angle of the worm wheel and the worm from exceeding the range and leading the worm wheel and the worm to break away from each other, the steering engine bodies are arranged on the upper side and the lower side of the worm wheel for limiting, and the combination of the worm wheel and the rudder shaft can only deflect within a certain angle. But under the high-speed pivoted condition of rudder axle worm wheel combination, the rudder axle can have certain overshoot because inertia factor, and the worm wheel teeth of a cogwheel can collide with the spacing metal body of upper and lower both sides at a high speed this moment, produces huge reaction force after the collision and makes worm gear meshing department produce the atress and warp, influences normal transmission until the dead condition of emergence structure card, because steering wheel system is closed-loop control, the mechanism card is dead can lead to the motor stall to generate heat or even burn out.
Patent document CN111717371A discloses a high-load low-friction anti-backlash aircraft steering engine, which comprises a direct-current servo motor, a base body, a sleeve, a steering shaft, a rocker arm, a ball screw pair, an angular displacement sensor and the like; the output shaft of the direct current servo motor is coaxially arranged with the ball screw pair, and the sleeve is arranged at the joint of the output shaft of the direct current servo motor and the ball screw; an extension shaft at the side of the ball screw nut is rotatably connected with one end of the rocker arm through a bearing; the other end of the rocker arm is connected with one end of a rudder shaft, the rudder shaft is rotationally connected with the substrate through a bearing, and the other end of the rudder shaft extends out of the surface of the substrate and is connected with a rudder sheet; an extension rod of the sleeve is arranged on the base body through a bearing and a pin shaft to form a revolute pair; the angular displacement sensor and the rudder shaft are coaxially installed and synchronously rotate, the angular displacement sensor is used for feeding back rudder deflection angle signals, the clamping stagnation phenomenon is solved by installing the bearing at the joint, the requirement on the installation space is high, the original structure needs to be greatly changed, and the universality is poor.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a safe anti-clamping stagnation structure suitable for an ultra-high-speed electric steering engine.
The invention provides a safety anti-sticking structure suitable for an ultra-high-speed electric steering engine, which comprises a power assembly, a transmission assembly, a body and a stop block assembly, wherein the power assembly is connected with the transmission assembly;
the transmission assembly is arranged on the body, and the stop block assembly is arranged between the transmission assembly and the body;
the power assembly is in driving connection with the transmission assembly.
Preferably, the block assembly comprises a base, a damping piece and an upper supporting seat;
the damping piece is installed on the base through an upper supporting seat.
Preferably, the base, the damping piece and the upper supporting seat are all manufactured by vulcanization gluing.
Preferably, the damping member is of a resilient conical structure.
Preferably, the damping member is made of a material including silicone rubber.
Preferably, the base adopts a metal mounting flange, and the metal mounting flange is detachably mounted on the body.
Preferably, the power assembly comprises a motor and a worm;
the motor is in driving connection with the worm.
Preferably, the transmission assembly comprises a rudder shaft, a worm wheel and a rudder shaft coupling;
the rudder shaft is connected with the worm wheel through a rudder shaft coupling;
the worm is in meshed driving connection with the worm wheel.
Preferably, the rudder shaft coupling is connected with the worm wheel through a rudder shaft taper pin.
Preferably, the stop block assembly is detachably mounted on the body on the upper side and the lower side of the transmission assembly through a connecting piece.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the elastic damping piece is adopted, so that the collision between the gear teeth of the worm wheel and the mechanical limit is relatively alleviated, the elastic damping piece deforms to absorb most of kinetic energy, and further the worm wheel and the worm can be subjected to smaller impact force, so that the probability of structural locking is reduced, and the running stability of the equipment is improved.
2. The invention adopts the combination of the mechanical limit elastic stop blocks, has the thickness of only 2mm, has small change on the original structure, can be applied to a mechanism with small space, and has good universality, convenient installation and simple operation.
3. The invention adopts the elastic damping part, can reduce the impact force between the gear teeth of the worm wheel and the metal mechanical limiting part, prevents the clamping, realizes the function of mechanical limiting and anti-clamping, and has lower cost.
4. The damping part is mainly made of silicon rubber materials, the silicon rubber materials can keep relatively stable mechanical properties in a wider temperature area, the change of elastic modulus is small, the damping performance is stable, and the damping performance can be improved by blending with other rubbers; meanwhile, different rigidity characteristics can be obtained by changing the size of the rubber section and the hardness of the rubber material, so that the requirements of different application scenes can be met.
5. The stop block assembly is arranged on the body through the detachable connecting piece, so that the replacement and maintenance are convenient.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a side view of the present invention;
FIG. 2 is a schematic view of the assembly of the elastic stopper of the present invention;
FIG. 3 is a schematic view of the relative positions of the worm gear and resilient stop combination of the present invention;
FIG. 4 is a schematic view of the motor and worm assembly of the present invention;
FIG. 5 is a schematic view of the rudder shaft and worm wheel assembly of the present invention;
FIG. 6 is a cloud of displacement deformation of the resilient block assembly under the action of impact force;
fig. 7 is an impact force curve.
The figures show that:
Rudder shaft coupling 203
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1:
the invention provides a safety anti-jamming structure suitable for an ultra-high-speed electric steering engine, which comprises a power assembly 1, a transmission assembly 2, a body 3 and a stop block assembly 4, wherein the transmission assembly 2 is installed on the body 3, the stop block assembly 4 is arranged between the transmission assembly 2 and the body 3, the power assembly 1 is in driving connection with the transmission assembly 2, the number of the stop block assemblies 4 is preferably 2, the 2 stop block assemblies 4 are respectively detachably installed on the body 3 on the upper side and the lower side of the transmission assembly 2 through connecting pieces, and the connecting pieces are preferably screws.
Specifically, as shown in fig. 2, the stop block assembly 4 includes a base 401, a damping member 402, and an upper supporting seat 403, wherein the damping member 402 is mounted on the base 401 through the upper supporting seat 403, and the damping member 402 preferably adopts an elastic cone structure.
Example 2:
this embodiment is a preferred embodiment of embodiment 1.
In the present embodiment, the power assembly 1 includes a motor 101 and a worm 103, as shown in fig. 4, the motor 101 is in driving connection with the worm 103, and the motor 101 is preferably connected with the worm 103 through a coupling 102. The transmission assembly 2 comprises a rudder shaft 201, a worm wheel 202 and a rudder shaft coupling 203, as shown in fig. 5, the rudder shaft 201 is connected with the worm wheel 202 through the rudder shaft coupling 203, and the worm 103 is in meshing driving connection with the worm wheel 202.
In this embodiment, the rudder shaft coupling 203 extends into the worm wheel 202 and is fixed by a rudder shaft taper pin 204.
In this embodiment, the base 401 is a metal mounting flange, the metal mounting flange is mounted on the body 3 through a screw, the damping member 402 is made of silicon rubber, the upper support seat 403 of the stopper assembly 4 is used for contacting with the teeth of the worm gear 202 and bearing the huge impact force of the worm gear 202, the metal mounting flange plays a role in mounting and supporting, the conical elastic damping member between the upper support seat and the lower support seat is a main vibration-damping energy-absorbing element, and the base 401, the damping member 402 and the upper support seat 403 are all connected through vulcanized rubber, so that the buffering effect is improved.
The silicon rubber material can keep relatively stable mechanical property in a relatively wide temperature area, has small elastic modulus change and relatively stable damping property, and can be blended with other rubbers to improve the damping property; furthermore, different stiffness characteristics can be obtained by changing the size of the rubber section and the hardness of the rubber material, so as to meet different requirements, and a silicone rubber material can be preferably used as the main material of the elastic damping member 402.
When the elastic stop block combination is acted by impact force, transient impact simulation analysis shows that the maximum displacement of the elastic damping part after being impacted is about 0.6mm, and the deformation is 30 percent and is within an acceptable range; the impact force curve and the displacement deformation cloud chart of the damping piece are shown in fig. 6 and 7.
The working principle of the invention is as follows:
under the aircraft flight condition, motor 101 rotates according to input signal at a high speed, it is inclined to one side to drive rudder shaft worm wheel combination transmission assembly 2 and realize the predetermined rudder, when rudder surface rudder deflection angle of high-speed pivoted reaches maximum mechanical rudder deflection angle, because mechanical inertial's reason, rudder shaft worm wheel transmission assembly 2 is difficult to stop immediately, it is spacing to briefly surpass the angle, the worm wheel 202 teeth of a cogwheel contacts with the elastic stop block subassembly 4 of installing on upper and lower both sides body 3, and absorb high-speed kinetic energy by elastic damping piece 402, the direct collision of worm wheel 202 with body 3 has been prevented, the dead condition of card has been avoided.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A safe anti-clamping stagnation structure suitable for an ultra-high-speed electric steering engine is characterized by comprising a power assembly (1), a transmission assembly (2), a body (3) and a stop block assembly (4);
the transmission assembly (2) is mounted on the body (3), and the stop block assembly (4) is arranged between the transmission assembly (2) and the body (3);
the power assembly (1) is in driving connection with the transmission assembly (2).
2. The safety anti-clamping stagnation structure applicable to the ultra-high-speed electric steering engine is characterized in that the stop block assembly (4) comprises a base (401), a damping piece (402) and an upper supporting seat (403);
the damping member (402) is mounted on the base (401) through an upper support (403).
3. The safety anti-clamping stagnation structure applicable to the ultra-high-speed electric steering engine according to claim 2 is characterized in that the base (401), the damping piece (402) and the upper supporting seat (403) are all manufactured by vulcanization gluing.
4. The safety anti-clamping stagnation structure applicable to the ultra-high-speed electric steering engine is characterized in that the damping piece (402) is of an elastic conical structure.
5. The safety anti-clamping stagnation structure applicable to the ultra-high-speed electric steering engine according to claim 2, wherein the damping member (402) is made of silicon rubber.
6. The safety anti-clamping stagnation structure applicable to the ultra-high-speed electric steering engine according to claim 2 is characterized in that a metal mounting flange is adopted by the base (401), and the metal mounting flange is detachably mounted on the body (3).
7. The safety anti-clamping stagnation structure applicable to the ultra-high-speed electric steering engine is characterized in that the power assembly (1) comprises a motor (101) and a worm (103);
the motor (101) is in driving connection with the worm (103).
8. The safety anti-clamping structure applicable to the ultra-high-speed electric steering engine according to claim 7, wherein the transmission assembly (2) comprises a steering shaft (201), a worm wheel (202) and a steering shaft coupling (203);
the rudder shaft (201) is connected with the worm wheel (202) through a rudder shaft coupling (203);
the worm (103) is in meshing driving connection with the worm wheel (202).
9. The safety anti-clamping structure applicable to the ultra-high-speed electric steering engine according to claim 8, wherein the rudder shaft coupling (203) is connected with the worm wheel (202) through a rudder shaft taper pin (204).
10. The safety anti-clamping stagnation structure applicable to the ultra-high-speed electric steering engine according to claim 1, wherein the stop block assembly (4) is detachably mounted on the body (3) on the upper side and the lower side of the transmission assembly (2) through a connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110321325.XA CN113002761A (en) | 2021-03-25 | 2021-03-25 | Safety anti-sticking structure suitable for superspeed electric steering engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110321325.XA CN113002761A (en) | 2021-03-25 | 2021-03-25 | Safety anti-sticking structure suitable for superspeed electric steering engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113002761A true CN113002761A (en) | 2021-06-22 |
Family
ID=76407244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110321325.XA Pending CN113002761A (en) | 2021-03-25 | 2021-03-25 | Safety anti-sticking structure suitable for superspeed electric steering engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113002761A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0571640A (en) * | 1991-09-09 | 1993-03-23 | Toyota Motor Corp | Controller of automatic transmission |
| US5657667A (en) * | 1995-12-15 | 1997-08-19 | United Technologies Motor Systems, Inc. | End of travel stop for transfer case actuator |
| JP2004090811A (en) * | 2002-08-30 | 2004-03-25 | Koyo Seiko Co Ltd | Electrically powered steering device |
| EP1557547A2 (en) * | 2004-01-24 | 2005-07-27 | Pierburg GmbH | Actuating device |
| JP2009264113A (en) * | 2008-04-22 | 2009-11-12 | Hitachi Ltd | Electronically controlled throttle device for internal combustion engine |
| CN202268263U (en) * | 2011-09-15 | 2012-06-06 | 山东泰开高压开关有限公司 | Electric operation mechanism for high-voltage insulated grounding switch |
| CN109560664A (en) * | 2017-09-25 | 2019-04-02 | 日本电产三协株式会社 | Rotary transfer machine and throttle setting |
-
2021
- 2021-03-25 CN CN202110321325.XA patent/CN113002761A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0571640A (en) * | 1991-09-09 | 1993-03-23 | Toyota Motor Corp | Controller of automatic transmission |
| US5657667A (en) * | 1995-12-15 | 1997-08-19 | United Technologies Motor Systems, Inc. | End of travel stop for transfer case actuator |
| JP2004090811A (en) * | 2002-08-30 | 2004-03-25 | Koyo Seiko Co Ltd | Electrically powered steering device |
| EP1557547A2 (en) * | 2004-01-24 | 2005-07-27 | Pierburg GmbH | Actuating device |
| JP2009264113A (en) * | 2008-04-22 | 2009-11-12 | Hitachi Ltd | Electronically controlled throttle device for internal combustion engine |
| CN202268263U (en) * | 2011-09-15 | 2012-06-06 | 山东泰开高压开关有限公司 | Electric operation mechanism for high-voltage insulated grounding switch |
| CN109560664A (en) * | 2017-09-25 | 2019-04-02 | 日本电产三协株式会社 | Rotary transfer machine and throttle setting |
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Application publication date: 20210622 |