CN215043637U - Steering engine torque compensation mechanism for reducing torque of control surface - Google Patents
Steering engine torque compensation mechanism for reducing torque of control surface Download PDFInfo
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- CN215043637U CN215043637U CN202022982913.1U CN202022982913U CN215043637U CN 215043637 U CN215043637 U CN 215043637U CN 202022982913 U CN202022982913 U CN 202022982913U CN 215043637 U CN215043637 U CN 215043637U
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Abstract
The utility model provides a reduce steering wheel moment compensation mechanism of control plane moment, including sliding groove hole (211), curved surface connecting rod (21), connecting rod shell (22), subtract power curved surface (212), elastic element (23), scalable back shaft, gyro wheel (25), slide rail (26), through being connected with steering wheel and control plane, through utilizing elastic element (23) drive gyro wheel (25) to sticis the effort compensation control plane moment that produces on curved surface connecting rod (21), the steering wheel moment output demand has been reduced, the steering wheel select range has been enlarged, the problem of conventional steering wheel design kind too big has been solved, the operation difficulty, the reliability is low.
Description
Technical Field
The utility model relates to a reduce steering wheel moment compensation mechanism of rudder face moment belongs to steering wheel mechanism design field.
Background
The control surface of the prior aircraft is generally operated by an oil pressure or electric steering engine, and the attitude change of the whole aircraft depends on the change of aerodynamic force on the control surface, so that the aerodynamic force on the control surface is generally relatively large, and the control surface can be operated by the steering engine with large power and moment. For hydraulic steering engines, higher pressures are required; for an electric steering engine, higher voltage and current are needed, the steering engine is easy to break down due to high hydraulic pressure, high current and voltage, the reliability of a rudder system is reduced, and the weight of the steering engine is very large. For extremely weight sensitive aircraft, the excessive weight undoubtedly increases the performance of the aircraft. For example, for a solar airplane, a conventional steering engine is too heavy, mechanical properties represented by torque are difficult to meet the requirement, and a special steering engine needs to be developed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem be: the steering engine torque compensation mechanism capable of reducing the torque of the control surface is provided aiming at the problem that a special steering engine which can meet the requirement for use is lacked in the prior art.
The utility model provides an above-mentioned technical problem realize through following technical scheme:
the utility model provides a reduce steering wheel moment compensation mechanism of rudder face moment, includes slotted eye, curved surface connecting rod, connecting rod shell, subtracts power curved surface, elastic element, scalable back shaft, gyro wheel, slide rail, subtract power curved surface and set up in curved surface connecting rod middle part, and curved surface connecting rod both ends are provided with the slotted eye, the connecting rod shell suit is in curved surface connecting rod central point puts the outside, and the gyro wheel sets up in the connecting rod shell, and scalable back shaft links to each other with elastic element and penetrates in the connecting rod shell, the gyro wheel compresses tightly on the subtract power curved surface of curved surface connecting rod under elastic element spring action, and curved surface connecting rod passes through slide rail connection with the connecting rod shell and forms curved surface link mechanism, and curved surface connecting rod both ends slotted eye is connected with the steering wheel rocking arm or the rudder face rocking arm of outside steering wheel, slides to the highest point department of subtract power curved surface when the gyro wheel, is fixed in on the steering wheel with the connecting rod shell.
The two ends of the curved surface connecting rod are provided with sliding groove holes, and the force reducing curved surface is a parabolic curved surface.
The sliding groove hole is connected with a steering engine rocker arm or a control surface rocker arm through a pin shaft, and the pin shaft can slide in the sliding groove hole.
The connecting rod shell is provided with a sleeve, and the telescopic supporting shaft can slide in the sleeve to realize the extension and retraction of the force-reducing curved surface.
The roller is arranged on the telescopic supporting shaft and can rotate.
The elastic element and the telescopic supporting shaft are arranged in a sleeve of the connecting rod shell, and the connecting rod shell is fixed on an external steering engine through a mounting hole.
Compared with the prior art, the utility model the advantage lie in:
the utility model provides a pair of reduce steering wheel moment compensation mechanism of rudder face moment, adopt elastic element and parabola curved surface to constitute negative stiffness mechanism, relative motion part is few, the reliability of mechanism is high, utilize elastic element drive gyro wheel to sticis the effort compensation rudder face moment that produces on the curved surface connecting rod simultaneously, steering wheel moment output demand has been reduced, the steering wheel selection range has been enlarged, thereby the steering wheel reliability has been improved, the steering wheel weight has been reduced, and slide rail and gyro wheel through low friction, the frictional force of whole mechanism has been reduced, steering wheel moment output demand has further been reduced.
Drawings
Fig. 1 is a schematic view of the installation position relationship between a steering engine and a control surface provided by the utility model;
fig. 2 is a schematic diagram of a steering engine torque compensation mechanism provided by the utility model;
fig. 3 is a schematic view of a curved connecting rod structure provided by the utility model;
fig. 4 is a schematic structural view of a connecting rod housing provided by the utility model;
fig. 5 is a schematic view of the position relationship between the retractable support shaft and the roller provided by the utility model;
fig. 6 is a schematic static force diagram of the roller on the force-reducing curved surface provided by the utility model;
Detailed Description
The utility model provides a reduce steering wheel moment compensation mechanism of control surface moment, as shown in figure 1, be connected with steering wheel and control surface respectively, through utilizing elastic element 23 drive gyro wheel 25 to sticis the effort compensation control surface moment that produces on curved surface connecting rod 21, the steering wheel moment output demand has been reduced, the steering wheel selection range has been enlarged, the problem of conventional steering wheel design kind too big, the operation difficulty, the reliability is low has been solved, mainly include slotted eye 211, curved surface connecting rod 21, connecting rod shell 22, subtract power curved surface 212, elastic element 23, scalable back shaft, gyro wheel 25, slide rail 26, wherein:
a sliding slot hole-211, a force-reducing curved surface-212, a curved surface connecting rod-21, a connecting rod shell-22, an elastic element-23, a telescopic supporting shaft-24, a roller-25, a sliding rail-26, a steering engine rocker-11, a connecting rod-13, a steering engine-1, a control surface rocker-31, a control surface-3 and a control surface rocker connecting rod pin shaft-32;
the structure setting specifically does:
in the steering engine torque compensation mechanism, a force reducing curved surface 212 is arranged in the middle of a curved surface connecting rod 21, sliding slot holes 211 are formed in two ends of the curved surface connecting rod 21, a connecting rod shell 22 is sleeved outside the central position of the curved surface connecting rod 21, a roller 25 is arranged in the connecting rod shell 22, a telescopic supporting shaft is connected with an elastic element 23 and penetrates into the connecting rod shell 22, the roller 25 is pressed on the force reducing curved surface 212 of the curved surface connecting rod 21 under the elastic force action of the elastic element 23, the curved surface connecting rod 21 is connected with the connecting rod shell 22 through a sliding rail 26 to form a curved surface connecting rod 21 mechanism, the sliding slot holes 211 in two ends of the curved surface connecting rod 21 are connected with a steering engine rocker or a control surface rocker of an external steering engine, and when the roller 25 slides to the highest point of the force reducing curved surface 212, the connecting rod shell 22 is fixed on the steering engine.
The two ends of the curved surface connecting rod 21 are provided with sliding slot holes 211, the force reducing curved surface 212 is a parabolic curved surface, the sliding slot holes 211 are connected with a steering engine rocker arm or a control surface rocker arm through pin shafts, the pin shafts can slide in the sliding slot holes 211, the connecting rod shell 22 is provided with a sleeve, and a telescopic supporting shaft can slide in the sleeve to realize the telescopic movement of the force reducing curved surface 212;
the roller 25 is arranged on a telescopic supporting shaft, the roller 25 can rotate, the elastic element 23 and the telescopic supporting shaft are arranged in a sleeve of the connecting rod shell 22, the connecting rod shell 22 is fixed on an external steering engine through a mounting hole, and the roller 25 of the telescopic supporting shaft is pressed on the force reducing curved surface 212 under the elastic force of the elastic element 23.
In the assembling process, the telescopic supporting shaft is connected with the elastic element 23, such as a spring, and then penetrates into the sleeve of the connecting rod shell 22, and then the curved connecting rod 21 penetrates into the connecting rod shell 22, so that the telescopic supporting shaft is pressed on the parabolic curved surface of the curved connecting rod 21 under the elastic force of the elastic element 23; secondly, connecting the slide rail 26 with the curved surface connecting rod 21 and the connecting rod shell 22 to form a complete curved surface connecting rod 21 mechanism; and finally, the curved surface connecting rod 21 is connected with the steering engine rocker arm or the control surface rocker arm through the sliding groove holes 211 at the two ends, when the curved surface connecting rod 21 is connected, the steering engine rocker arm or the control surface rocker arm is at the 0 position, and meanwhile, when the roller 25 slides to the curved surface highest point of the curved surface connecting rod 21, the state is kept, the connecting rod shell 22 is fixed on the machine body through the mounting hole of the connecting rod shell 22, but the pin shaft of the steering engine rocker arm or the pin shaft of the control surface rocker arm can slide in the sliding groove holes 211 at the two ends of the curved surface connecting rod 21 in the whole stroke.
When the steering engine and the control surface are both at the 0 position, the torque of the control surface is 0, the roller 25 of the steering engine torque compensation mechanism is positioned at the highest point of the parabolic curved surface of the curved surface connecting rod 21, the steering engine force compensation mechanism does not provide compensation torque, and the control surface keeps the 0 position state under the torque of the steering engine; when the rudder surface needs to be controlled, the rudder surface deviates from 0 position, meanwhile, the roller 25 of the steering engine torque compensation mechanism deviates from the highest point, and the deviation direction is consistent with the rudder surface, at the moment, the roller 25 on the inclined surface provides acting force for the curved surface connecting rod 21, the acting force can be decomposed into the motion direction of the curved surface connecting rod 21, the component force in the motion direction of the connecting rod can generate torque which is opposite to the torque direction of the rudder surface and is the same as the torque direction of the steering engine, so that the torque requirement of the steering engine is reduced, the torque of the rudder surface is increased along with the increase of the deflection angle of the rudder surface, meanwhile, the larger the inclination angle of the point where the roller 25 of the compensation mechanism is located is, the larger the acting force is provided for the curved surface connecting rod 21, the torque of the steering engine is basically kept stable, and is in a lower level, the requirements on hydraulic pressure, current and voltage are reduced, and the reliability of the steering engine is improved.
The following is further illustrated with reference to specific examples:
in this embodiment, as shown in fig. 2, different materials are selected according to actual needs, for example, for an airplane, weight is a sensitive factor, and titanium alloy with light weight and good strength can be selected, wherein:
the curved surface connecting rod 21 is characterized in that the curved surface 212 is a force reducing curved surface, the length of the curved surface is determined according to the stroke of the rocker arm of the steering engine, the shape of the force reducing curved surface 212 is determined according to the load to be compensated, and the statics relation is shown in figure 6. Neglecting the friction force of the steering engine compensation moment mechanism, the shape of the force-reducing curved surface 212 of the curved surface connecting rod 21 is simplified into a quadratic parabola shape, which is represented as y ═ ax ^2, x represents the transverse distance of the top point of the force-reducing curved surface 212 of the roller 25, the maximum value and the minimum value of x are determined by the stroke of the steering engine, a is a parabola coefficient, then at the position x, the inclined angle of the curved surface is 2ax, the pressure of Fk is provided by the telescopic supporting shaft, the transverse acting force of Fd can be generated on the curved surface at the point, and Fd is equal to the load corresponding to the torque of the steering surface. The formula is as follows: fd ═ Fktan (2ax), Fk ═ Kax ^2+ b, where K is the stiffness of the elastic element 23 and b is the pre-compression amount. If Fd is equal to K (ax ^2+ b) tan (2ax), x is known, and only K, a, and b are unknown. Taking Fd1, Fd2 and Fd3 corresponding to three different positions x1, x2 and x3 to determine K, a and b to obtain an expression of the force-reducing curved surface 212 of the curved surface connecting rod 21, and processing the force-reducing curved surface 212 according to the expression;
as shown in fig. 3, the curved surface connecting rod 21 is processed, and the shape of the force-reducing curved surface 212 is processed according to the quadratic curve y ═ ax ^2 obtained in the previous step;
selecting the elastic element 23 according to the K selected in the previous step, and processing the elastic element 23 and the telescopic supporting rod and the roller 25 as shown in FIG. 5;
as shown in fig. 4, the size of the elastic element 23 and the size of the telescopic supporting rod are obtained, and the connecting rod shell 22 is processed, and standard parts are used as optional parts of the roller 25 and the sliding rail 26;
as shown in fig. 2, the rudder moment compensating mechanism is assembled by first connecting the telescopic support shaft with the elastic member 23, such as a spring, etc., and then penetrating into the sleeve of the link housing 22, and then penetrating the curved link 21 into the link housing 22, so that the telescopic support shaft presses the roller 25 against the force reducing curved surface 212 of the curved link 21 under the elastic force of the elastic member 23; secondly, connecting the slide rail 26 with the curved surface connecting rod 21 and the connecting rod shell 22 to form a complete curved surface connecting rod 21 mechanism; and finally, the curved surface connecting rod 21 is connected with the steering engine rocker arm or the control surface rocker arm through the sliding groove holes 211 at the two ends, when the curved surface connecting rod 21 is connected, the steering engine rocker arm or the control surface rocker arm is at the 0 position, the roller 25 slides to the curved surface highest point of the curved surface connecting rod 21, the connecting rod shell 22 is fixed on the machine body through the mounting hole, but the pin shaft of the steering engine rocker arm or the pin shaft of the control surface rocker arm can slide in the sliding groove holes 211 at the two ends of the curved surface connecting rod 21 in the whole stroke.
After the curved surface connecting rod 21 of the steering engine torque compensation mechanism is connected with a steering engine rocker arm or a control surface rocker arm, when the control surface and the steering engine rocker arm are at 0 position, the control torque is 0, the roller 25 of the steering engine torque compensation mechanism is positioned at the top point of the force reduction curved surface 212, the curved surface connecting rod 21 only bears pressure at the moment, and the steering engine has no torque output; when the control surface deflects, the control surface generates moment, the steering engine rocker arm moves along with the moment, at the moment, the roller 25 moves along with the force arm of the steering engine in the same direction, under the action of the elastic element 23, the roller 25 is pressed on the inclined plane of the force reduction curved surface 212 to generate acting force in the moving direction of the curved surface connecting rod 21, the acting force is transmitted to the steering engine rocker arm pin shaft in the form of connecting rod thrust through the sliding groove holes 211 at the two ends of the connecting rod, the moment in the same direction with the steering engine is generated, according to the mechanical balance condition, when the acceleration of the control surface and a conducting component is not considered, the thrust of the curved surface connecting rod 21 and the moment of the steering engine rocker arm are balanced with the moment of the control surface rocker arm, according to derivation, the moment which can be generated by the thrust of the curved surface connecting rod 21 just offsets with the moment of the control surface, and only the position needs to be kept, and the load output requirements of the steering engine are greatly reduced.
The details of the present invention not described in detail belong to the common general knowledge in the art.
Claims (6)
1. The utility model provides a reduce steering wheel moment compensation mechanism of control surface moment which characterized in that: comprises a sliding slot hole (211), a curved surface connecting rod (21), a connecting rod shell (22), a force reducing curved surface (212), an elastic element (23), a telescopic supporting shaft, a roller (25) and a sliding rail (26), the force reducing curved surface (212) is arranged in the middle of the curved surface connecting rod (21), sliding slot holes (211) are arranged at two ends of the curved surface connecting rod (21), the connecting rod shell (22) is sleeved outside the central position of the curved connecting rod (21), the roller (25) is arranged in the connecting rod shell (22), the telescopic supporting shaft is connected with the elastic element (23) and penetrates into the connecting rod shell (22), the roller (25) is pressed on a force reducing curved surface (212) of the curved surface connecting rod (21) under the action of the elastic force of the elastic element (23), the curved surface connecting rod (21) is connected with the connecting rod shell (22) through a sliding rail (26) to form a curved surface connecting rod (21) mechanism, and sliding groove holes (211) at two ends of the curved surface connecting rod (21) are connected with a steering engine rocker arm or a control surface rocker arm of an external steering engine.
2. The steering engine torque compensation mechanism for reducing the torque of the control surface according to claim 1, is characterized in that:
slide slot holes (211) are formed in two ends of the curved surface connecting rod (21), and the force reducing curved surface (212) is a parabolic curved surface.
3. The steering engine torque compensation mechanism for reducing the torque of the control surface according to claim 1, is characterized in that:
the sliding groove hole (211) is connected with a steering engine rocker arm or a control surface rocker arm through a pin shaft, and the pin shaft can slide in the sliding groove hole (211).
4. The steering engine torque compensation mechanism for reducing the torque of the control surface according to claim 1, is characterized in that:
the connecting rod shell (22) is provided with a sleeve, and the telescopic supporting shaft can slide in the sleeve to realize the telescopic of the force reducing curved surface (212).
5. The steering engine torque compensation mechanism for reducing the torque of the control surface according to claim 1, is characterized in that:
the roller (25) is arranged on the telescopic supporting shaft, and the roller (25) can rotate.
6. The steering engine torque compensation mechanism for reducing the torque of the control surface according to claim 1, is characterized in that:
elastic element (23), scalable back shaft are installed in the sleeve of connecting rod shell (22), and connecting rod shell (22) are fixed in on the outside steering wheel through the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022982913.1U CN215043637U (en) | 2020-12-11 | 2020-12-11 | Steering engine torque compensation mechanism for reducing torque of control surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022982913.1U CN215043637U (en) | 2020-12-11 | 2020-12-11 | Steering engine torque compensation mechanism for reducing torque of control surface |
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| CN215043637U true CN215043637U (en) | 2021-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112455657A (en) * | 2020-12-11 | 2021-03-09 | 中国航天空气动力技术研究院 | Steering engine torque compensation mechanism for reducing torque of control surface |
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- 2020-12-11 CN CN202022982913.1U patent/CN215043637U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112455657A (en) * | 2020-12-11 | 2021-03-09 | 中国航天空气动力技术研究院 | Steering engine torque compensation mechanism for reducing torque of control surface |
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