CN108980293B - Torsion driver output displacement amplifying device - Google Patents
Torsion driver output displacement amplifying device Download PDFInfo
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- CN108980293B CN108980293B CN201810790589.8A CN201810790589A CN108980293B CN 108980293 B CN108980293 B CN 108980293B CN 201810790589 A CN201810790589 A CN 201810790589A CN 108980293 B CN108980293 B CN 108980293B
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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
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H37/041—Combinations of toothed gearings only for conveying rotary motion with constant gear ratio
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Abstract
The invention relates to the technical field of aviation structure design, in particular to an output displacement amplifying device of a torsion driver. Comprises a torsion displacement driving mechanism (1), a primary amplification mechanism (2) and a secondary amplification mechanism (3). In an embodiment of the invention, an arc-shaped rack is arranged on a primary amplification mechanism (2), the arc-shaped rack transmits the torsion displacement amplified by the primary amplification mechanism to a secondary amplification mechanism (3), the secondary amplification mechanism (3) is coaxial with a torsion displacement driving mechanism (1), the torsion displacement driving mechanism (1) inputs torque and torsion displacement through a torsion driver, and finally, a torque output and a large torsion displacement are obtained at the output end of the secondary amplification mechanism (3) through the transmission of the two-stage amplification mechanism. The device solves the problem that the output displacement of the torsion driver is limited, has simple and efficient structural form, is convenient to install and has good engineering applicability.
Description
Technical Field
The invention relates to the technical field of aviation structure design, in particular to an output displacement amplifying device of a torsion driver.
Background
Torsion drivers, as a means of actively driving structural deformations, are becoming increasingly important in the rapid development of modern aircraft platforms. The folding wing of the shipboard aircraft is a typical position, a hydraulic actuator cylinder is arranged at the folding position to realize the folding function of the wing, if a torsion driver is arranged at the position of the folding wing of the shipboard aircraft, the folding function of the wing can also be realized, but the output displacement of the torsion driver is limited, so that the engineering applicability is poor.
Disclosure of Invention
The invention aims to provide an output displacement amplifying device of a torsion driver, which is used for solving the problem that the output displacement of the torsion driver is limited in the prior art.
The technical scheme of the invention is as follows:
a torsional driver output displacement amplification device comprising:
the torque displacement driving mechanism is cylindrical, a tooth groove is formed in the inner wall of the torque displacement driving mechanism, and the torque displacement driving mechanism is connected with the torsion driver;
the primary amplification mechanisms are arranged in a plurality of numbers, the mapping intervals of the primary amplification mechanisms on the end face of the torque displacement driving mechanism are equal, each primary amplification mechanism comprises a first gear, and each primary amplification mechanism is meshed with a tooth groove in the inner wall of the torque displacement driving mechanism through the first gear;
the second-stage amplification mechanism is coaxially arranged in the center of the torque displacement driving mechanism, a third gear is arranged on the second-stage amplification mechanism, and the second-stage amplification mechanism can be driven by a plurality of first-stage amplification mechanisms.
Optionally, the second-stage amplification mechanism is engaged with the first gear of each first-stage amplification mechanism through the third gear, so that the first-stage amplification mechanism drives the second-stage amplification mechanism.
Optionally, the first-stage amplification mechanism further comprises a second gear and an arc-shaped rack matched with the second gear, and the second-stage amplification mechanism is meshed with the arc-shaped racks of each first-stage amplification mechanism through the third gear, so that the first-stage amplification mechanism drives the second-stage amplification mechanism.
Optionally, the torsion driver outputs a displacement amplification device,
amplification factor k of output displacement1Comprises the following steps:
k1＝R1R″2/R2R3
coefficient of output torque amplification k2Respectively as follows:
k2＝R2R3/R1R″2
wherein R is1-torsional displacement drive mechanism inner radius;
R2-a first gear radius of the primary amplification mechanism;
R″2-the inner radius of the arc-shaped rack of the primary amplification mechanism;
R3-third gear radius of the two-stage amplification mechanism.
Optionally, the number of the primary amplification mechanisms is three, and the mapping intervals of the three primary amplification mechanisms on the end face of the torque displacement driving mechanism are all 120 degrees.
The invention has the following effects:
the device for amplifying the output displacement of the torsion driver converts the output displacement of the torsion driver through the two-stage amplification device, so that a larger torsion displacement is obtained.
Drawings
FIG. 1 is a front view of one embodiment of a torsional drive output displacement amplification device of the present invention;
FIG. 2 is a cross-sectional view of one embodiment of the torque driver output displacement amplification device of the present invention;
FIG. 3 is a schematic view of a one-stage amplification mechanism of one embodiment of the torsional drive output displacement amplification device of the present invention;
FIG. 4 is a schematic diagram of a two-stage amplification mechanism of one embodiment of the torsional drive output displacement amplification device of the present invention.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
The torsion driver output displacement amplifying apparatus of the present invention will be described in further detail with reference to fig. 1 to 4.
The invention provides an output displacement amplifying device of a torsion driver, which comprises: a torque displacement driving mechanism 1, a primary amplifying mechanism 2 and a secondary amplifying mechanism 3.
Specifically, the torque displacement driving mechanism 1 is cylindrical, a tooth socket is arranged on the inner wall of the torque displacement driving mechanism 1, and the torque displacement driving mechanism 1 is connected with a torsion driver. The one-level amplification mechanisms 2 are provided with a plurality of one-level amplification mechanisms, the mapping intervals of the one-level amplification mechanisms 2 on the end face of the torque displacement driving mechanism 1 are equal, each one-level amplification mechanism 2 comprises a first gear, and each one-level amplification mechanism 2 is meshed with the tooth grooves in the inner wall of the torque displacement driving mechanism 1 through the first gear. The second-stage amplification mechanism 3 is coaxially arranged at the center of the torque displacement driving mechanism 1, a third gear is arranged on the second-stage amplification mechanism 3, and the second-stage amplification mechanism 3 can be driven by a plurality of first-stage amplification mechanisms 2. The second-stage amplification mechanism 3 is coaxial with the torsional displacement driving mechanism 1 so as to ensure that the torque and the torsional displacement are not eccentric in the transmission process.
In the first advantageous embodiment of the output displacement amplifying device of the torsion driver of the present invention, the two-stage amplifying mechanism 3 is engaged with the first gear of each one-stage amplifying mechanism 2 through the third gear, and the driving of the two-stage amplifying mechanism 3 by the one-stage amplifying mechanism 2 is realized.
In a second advantageous embodiment of the output displacement amplifying device of the torsion driver of the present invention, the primary amplifying mechanism 2 further comprises a second gear and an arc-shaped rack matched with the second gear, and the secondary amplifying mechanism 3 is engaged with the arc-shaped rack of each primary amplifying mechanism 2 through a third gear, so as to realize the driving of the secondary amplifying mechanism 3 by the primary amplifying mechanism 2.
It can be understood that, in the embodiment of the present invention, the primary amplification mechanisms 2 may include three primary amplification mechanisms 2, the mapping intervals of the three primary amplification mechanisms 2 on the end surface of the torque displacement driving mechanism 1 are all 120 degrees, and the primary amplification mechanisms 2 are uniformly arranged, so as to ensure that the primary amplification mechanisms are not eccentric and the uniformity of the stress of the gear is ensured.
According to the device for amplifying the output displacement of the torsion driver, the torsion displacement driving mechanism 1 is meshed with the primary amplification mechanisms 2, primary amplification is achieved through the design of the transmission ratio, the plurality of primary amplification mechanisms 2 are identical in structure, meanwhile, the arc-shaped racks are arranged on the primary amplification mechanisms 2 and meshed with the secondary amplification mechanisms 3, and secondary amplification is achieved through the design of the transmission ratio. When the primary and secondary amplifying mechanisms are designed, the tooth form and the size of the transmission gear are designed according to the torque to be transmitted, and the positions of the gear shafts are arranged to ensure the transmission of the torque.
In a second embodiment of the torsional actuator output displacement amplification device according to the present invention, the amplification factor of the output displacement and the output torque amplification factor of the device are calculated as follows:
amplification factor k of output displacement1Comprises the following steps:
k1＝R1R″2/R2R3
coefficient of output torque amplification k2Respectively as follows:
k2＝R2R3/R1R″2
wherein R is1-the inner radius of the torsional displacement drive mechanism 1;
R2-first gear radius of the primary amplification mechanism 2;
R″2-inner radius of the arc-shaped rack of the primary amplification mechanism 2;
R3the third gear radius of the two-stage amplification mechanism 3.
k1k21, i.e. satisfying the input-output power phaseAnd the like. The radius of the shaft and the gear of each stage of amplifying device is properly adjusted, and the required output displacement and torque can be obtained. Wherein the gear stroke of the primary amplifying mechanism 2 is limited, if the first gear radius R needs to be increased2And simultaneously avoids interfering with the central shaft of the output displacement amplifying device of the torsion driver, the first gear of the primary amplifying mechanism 2 can be designed into a semicircular shape or 1/4 circular shape and the like which meet the stroke requirement.
In a second embodiment of the torsional actuator output displacement amplification device of the present invention, an appropriate torsional displacement drive mechanism 1 is selected according to the size of the torsional actuator, the torsional displacement drive mechanism 1 having an inner radius R1Rotation angle of theta1Consistent with a torsional drive. The first-stage amplification mechanism 2 is selected, the three first-stage amplification mechanisms 2 are completely consistent in structure and size, and the radius of the first gear is R2Angle of rotation theta2And the second gear has a radius of R'2The rotation angle is θ'2The inner radius of the arc-shaped rack is R2The angle of rotation is theta ″)2. The radius of the third gear of the two-stage amplification mechanism 3 is selected to be R3Rotation angle of theta3。
The input-output relationship between the output displacement amplifying devices of the torsion drivers is as follows:
for each stage of amplification mechanism, the rotary arc length L of the torsional displacement driving mechanism 11＝R1·θ1The first gear of the first-stage amplification mechanism 2 has a rotating arc length of L2＝R2·θ2，L′2＝R′2·θ′2The arc-shaped rack of the first-level amplification mechanism 2 has a rotating arc length of L ″2＝R″2·θ″2The second-stage amplification mechanism 3 has a third gear rotating arc length of L3＝R3·θ3。
The following relationship can be obtained according to the connection relationship of the amplifying devices at each stage,
L1＝L2，θ2＝θ′2＝θ″2，R1＝R2+R″2-R3，L″2＝L3。
therefore, the torsion displacement relation of the input end and the output end is obtained as follows:
let R be1＝100，R2＝35，R″2＝80，R315, the amplification factor:
therefore, the amplification device greatly improves the displacement output efficiency of the torsion driver.
Calculating the torque transfer:
setting the final output torque T3And the circumferential force of the third gear of the second-stage amplification mechanism is as follows:
the tangential force on the arc-shaped rack is equal to the third gear of the secondary amplification mechanism in size and opposite in direction, namely:
because first, second gear and the arc rack of one-level mechanism 2 of amplification all belong to coaxial motion, output equals, and the rotation radian equals, then:
F2L2＝F″2L″2
namely, it is
F2R2＝F″2R″2
The primary amplification mechanism 2 is engaged with the torsional displacement drive mechanism 1, namely:
F1＝3F2
and is
According to the above-mentioned series of formulas, if it is desired to obtain T at the output end3The torque required to be input at the input end is as follows:
strength and spatial arrangement requirements:
the first-stage amplification mechanism and the second-stage amplification mechanism both comprise gear transmission structures, so that the contact strength and the bending strength of the gears meet requirements under the condition of meeting the output end torque and the output displacement.
If the torque obtained at the output end is T3The dimensions of the shaft transmitting the torque are calculated and the parameters of the secondary amplification mechanism 3 are selected by looking up the machine design manual.
The tooth shape and a series of parameters of the arc-shaped rack in the first-stage amplification mechanism 2 are selected from the parameters of the third gear of the second-stage amplification mechanism 3, and the height of the arc-shaped rack is designed according to the principles of spatial arrangement and size coordination.
The torque of the first gear in the primary amplification mechanism 2 is:
the dimensions of the shaft transmitting this torque are calculated and the parameters of the first gear in the primary amplification mechanism 2 are selected by looking up the machine design manual.
The tooth form of the torsional displacement driving mechanism 1 is the same as the first gear parameter in the first-stage amplification mechanism 2, and the rest dimensions are designed according to the principles of spatial arrangement and dimensional coordination.
The invention discloses an output displacement amplifying device of a torsion driver, which adopts two-stage amplifying mechanisms to amplify and transmit torsion displacement step by step, and the two amplifying mechanisms are butted through the meshing of gear sets. The torsion driver is connected with the torsion displacement driving mechanism 1, the torsion displacement driving mechanism 1 transmits torque and torsion displacement to the plurality of first-stage amplification mechanisms 2, the first-stage amplification mechanisms 2 transmit the torsion displacement amplified by the first stage to the second-stage amplification mechanisms 3 through the arc-shaped racks, and the second-stage amplification mechanisms 3 are connected with the output end to provide the torsion displacement amplified by the second stage.
In summary, the first-stage amplification mechanism 2 is provided with the arc-shaped rack, the arc-shaped rack transmits the first-stage amplified torsional displacement to the second-stage amplification mechanism 3, and the second-stage amplification mechanism 3 is coaxial with the torsional displacement driving mechanism 1. A torque and a torsional displacement are given to the input end of the torsional displacement driving mechanism 1, and finally a torque output and a large torsional displacement are obtained at the output end of the second-stage amplifying device through the transmission of the two-stage amplifying device. This twist reverse driver output displacement amplification device converts the output displacement who twists reverse the driver through two-stage amplification device to obtain a great twist reverse displacement, the device has solved the problem that twist reverse driver output displacement is restricted, and structural style is succinct high-efficient, and simple to operate has fine engineering suitability.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (2)
1. A torsional driver output displacement amplification device, comprising:
the torque displacement driving mechanism (1) is cylindrical, a tooth groove is formed in the inner wall of the torque displacement driving mechanism (1), and the torque displacement driving mechanism (1) is connected with a torsion driver;
the primary amplification mechanisms (2) are arranged in a plurality of numbers, the mapping intervals of the primary amplification mechanisms (2) on the end face of the torque displacement driving mechanism (1) are equal, each primary amplification mechanism (2) comprises a first gear, and each primary amplification mechanism (2) is meshed with a tooth groove in the inner wall of the torque displacement driving mechanism (1) through the first gear;
the second-stage amplification mechanism (3), the second-stage amplification mechanism (3) is coaxially arranged at the center of the torque displacement driving mechanism (1), a third gear is arranged on the second-stage amplification mechanism (3), and the second-stage amplification mechanism (3) can be driven by a plurality of first-stage amplification mechanisms (2);
the primary amplification mechanism (2) further comprises a second gear and arc-shaped racks matched with the second gear, and the secondary amplification mechanism (3) is meshed with the arc-shaped racks of the primary amplification mechanisms (2) through the third gear, so that the primary amplification mechanism (2) drives the secondary amplification mechanism (3);
the torsion driver outputs a displacement amplifying device,
amplification factor k of output displacement1Comprises the following steps:
k1＝R1R″2/R2R3
coefficient of output torque amplification k2Respectively as follows:
k2＝R2R3/R1R″2
wherein R is1-the inner radius of the torsional displacement drive mechanism (1);
R2-a first gear radius of the primary amplification mechanism (2);
R″2-the inner radius of the arc-shaped rack of the primary amplification mechanism (2);
R3-a third gear radius of the two-stage amplification mechanism (3).
2. The torsional driver output displacement amplification device of claim 1, wherein the primary amplification mechanisms (2) comprise three, and the mapping intervals of the three primary amplification mechanisms (2) on the end face of the torque displacement driving mechanism (1) are all 120 degrees.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000097296A (en) * | 1998-09-22 | 2000-04-04 | Kensho Iwamoto | Output amplifier of rotational driving force |
| US6557436B1 (en) * | 1999-09-10 | 2003-05-06 | The Regents Of The University Of Michigan | Displacement amplification structure and device |
| CN202158147U (en) * | 2011-08-04 | 2012-03-07 | 中国船舶重工集团公司第七○三研究所 | Pinion unit with stable output function |
| CN106870645A (en) * | 2017-02-16 | 2017-06-20 | 李振鲁 | A kind of planetary gear speeder |
| CN207116005U (en) * | 2017-09-08 | 2018-03-16 | 渤海大学 | A kind of micro-displacement multistage enlarger |
| CN207441252U (en) * | 2018-01-11 | 2018-06-01 | 中国工程物理研究院总体工程研究所 | Two level displacement amplifying mechanism based on diamond shape compliant mechanism |
-
2018
- 2018-07-18 CN CN201810790589.8A patent/CN108980293B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000097296A (en) * | 1998-09-22 | 2000-04-04 | Kensho Iwamoto | Output amplifier of rotational driving force |
| US6557436B1 (en) * | 1999-09-10 | 2003-05-06 | The Regents Of The University Of Michigan | Displacement amplification structure and device |
| CN202158147U (en) * | 2011-08-04 | 2012-03-07 | 中国船舶重工集团公司第七○三研究所 | Pinion unit with stable output function |
| CN106870645A (en) * | 2017-02-16 | 2017-06-20 | 李振鲁 | A kind of planetary gear speeder |
| CN207116005U (en) * | 2017-09-08 | 2018-03-16 | 渤海大学 | A kind of micro-displacement multistage enlarger |
| CN207441252U (en) * | 2018-01-11 | 2018-06-01 | 中国工程物理研究院总体工程研究所 | Two level displacement amplifying mechanism based on diamond shape compliant mechanism |
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