CN109779763B - Fine adjustment mechanism and throttle control system - Google Patents
Fine adjustment mechanism and throttle control system Download PDFInfo
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- CN109779763B CN109779763B CN201910057861.6A CN201910057861A CN109779763B CN 109779763 B CN109779763 B CN 109779763B CN 201910057861 A CN201910057861 A CN 201910057861A CN 109779763 B CN109779763 B CN 109779763B
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- rotation angle
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Abstract
The invention relates to the technical field of mechanical structure transmission, and particularly discloses a fine adjustment mechanism, which comprises: operating handle, the transmission shaft, the damping structure, one-way drive mechanism, fine setting knob and rotation angle collection module, operating handle is connected with the one end of transmission shaft, the damping structure sets up on the transmission shaft, one-way drive mechanism and damping structural connection, the fine setting knob sets up on one-way drive mechanism, rotation angle collection module sets up on the transmission shaft, can drive one-way drive mechanism's rotation when the fine setting knob is rotatory, one-way drive mechanism's rotation can drive the rotation of transmission shaft through the rotation of damping structure, the rotation of transmission shaft can drive operating handle's rotation, rotation angle collection module is used for with controller communication connection. The invention also discloses an accelerator control system. The fine adjustment mechanism provided by the invention has the advantages of higher stability and short transmission path.
Description
Technical Field
The invention relates to the technical field of mechanical structure transmission, in particular to a fine adjustment mechanism and an accelerator control system comprising the fine adjustment mechanism.
Background
The aero-engine has the characteristics of high power, quick response and the like, and when the oil supply quantity exceeds a preset range, the structure is easily damaged, so that great loss is caused. Therefore, the test accelerator control system is required during test of the aircraft engine, and has very high reliability and accuracy. In the accelerator control system of the aircraft engine test bed, a fine adjustment device is required to be added in a control mechanism so as to accurately control the supply amount of fuel oil, and therefore the working state of an engine is accurately and effectively controlled.
The fine adjustment mechanism in the prior throttle control system is realized by combining a gear set, a damping structure, a stepping motor and a photoelectric sensor. The principle is as follows: the photoelectric sensor receives a rotation signal of the fine adjustment knob, then the signal drives the stepping motor to rotate, and finally the gear set is driven to rotate, so that the rotation is transmitted to the main shaft. The gear set is not connected with the fine adjustment knob in a mechanical structure, so that the rotation of the gear set driven by the control handle can not be transmitted to the fine adjustment knob. The principle of the fine adjustment mechanism is also feasible, but the fine adjustment mechanism has more reliability problems and use defects, which are mainly shown in the following steps: the fine adjustment operation has the phenomena of step loss, overshoot, swing and the like, the mechanism has multiple faults, the structure occupies larger space, and the stability and the reliability are low and the like. The reasons for this are complex structure, long transmission path, complex electromechanical connection, etc.
Disclosure of Invention
The invention aims to solve at least one technical problem in the prior art, and provides a fine adjustment mechanism and an accelerator control system comprising the fine adjustment mechanism so as to solve the problems in the prior art.
As a first aspect of the present invention, there is provided a fine adjustment mechanism, wherein the fine adjustment mechanism includes: an operating handle, a transmission shaft, a damping structure, a one-way transmission mechanism, a fine adjustment knob and a rotation angle acquisition module, wherein the operating handle is connected with one end of the transmission shaft, the damping structure is arranged on the transmission shaft, the one-way transmission mechanism is connected with the damping structure, the fine adjustment knob is arranged on the one-way transmission mechanism, the rotation angle acquisition module is arranged on the transmission shaft, the fine adjustment knob can drive the one-way transmission mechanism to rotate when rotating, the rotation of the one-way transmission mechanism can drive the transmission shaft to rotate through the rotation of the damping structure, the rotation of the transmission shaft can drive the operation handle to rotate, the rotation angle acquisition module is used for being in communication connection with the controller, the rotation angle acquisition module can send the acquired rotation angle signal of the transmission shaft to the controller.
Preferably, one-way drive mechanism includes worm wheel and worm, the worm wheel with damping structure connects, the worm with the worm wheel is connected, the fine setting knob sets up the one end of worm, the worm can drive the worm wheel and rotate.
Preferably, the damping structure comprises an outer ring portion, a middle portion and an inner ring portion, the outer ring portion and the inner ring portion are connected through the middle portion, the outer ring portion is fixedly connected with the worm wheel, the inner ring portion is fixedly connected with the transmission shaft, and damping material is filled in the middle portion.
Preferably, the damping material comprises silicone oil.
Preferably, the rotation angle acquisition module includes a resolver.
As a second aspect of the present invention, a throttle control system is provided, where the throttle control system includes a controller and the foregoing fine adjustment mechanism, a rotation angle acquisition module of the fine adjustment mechanism is in communication connection with the controller, and the controller can process a rotation angle signal acquired by the rotation angle acquisition module to obtain a control signal.
Preferably, the throttle control system comprises a driver and a motor, the driver is connected with the controller, the motor is connected with the driver, the output end of the motor can be connected with a throttle switch, the driver can generate a driving signal for the control signal, and the motor can adjust the throttle switch according to the driving signal.
Preferably, the controller comprises a PLC controller.
The fine adjustment mechanism provided by the invention ensures that the operation handle can only be driven to rotate by the rotation of the fine adjustment knob through arranging the damping structure and the one-way transmission mechanism, and the operation handle cannot be driven to adjust and rotate when rotating.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a front view of a fine adjustment mechanism provided by the present invention.
Fig. 2 is a side view of a fine adjustment mechanism provided by the present invention.
Fig. 3 is a schematic diagram of a transmission path of the fine adjustment mechanism provided by the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As a first aspect of the present invention, there is provided a fine adjustment mechanism, wherein, as shown in fig. 1 and 2, the fine adjustment mechanism includes: an operating handle 1, a transmission shaft 2, a damping structure 3, a one-way transmission mechanism, a fine adjustment knob 6 and a rotation angle acquisition module, wherein the operating handle 1 is connected with one end of the transmission shaft 2, the damping structure 3 is arranged on the transmission shaft 2, the one-way transmission mechanism is connected with the damping structure 3, the fine adjustment knob 6 is arranged on the one-way transmission mechanism, the rotation angle acquisition module is arranged on the transmission shaft 2, the fine adjustment knob 6 can drive the one-way transmission mechanism to rotate when rotating, the rotation of the one-way transmission mechanism can drive the transmission shaft 2 to rotate through the rotation of the damping structure 3, the rotation of the transmission shaft 2 can drive the operation handle 1 to rotate, the rotation angle acquisition module is used for being in communication connection with the controller, the rotation angle acquisition module can send the acquired rotation angle signal of the transmission shaft 2 to the controller.
The fine adjustment mechanism provided by the invention ensures that the operation handle can only be driven to rotate by the rotation of the fine adjustment knob through arranging the damping structure and the one-way transmission mechanism, and the operation handle cannot be driven to adjust and rotate when rotating.
Specifically, as shown in fig. 1 and 2, the one-way transmission mechanism includes a worm wheel 4 and a worm 5, the worm wheel 4 is connected with the damping structure 3, the worm 5 is connected with the worm wheel 4, the fine adjustment knob 6 is arranged at one end of the worm 5, and the worm 5 can drive the worm wheel 4 to rotate.
It should be noted that, the worm wheel 4 is sleeved on the transmission shaft 2, the worm wheel 4 can rotate freely relative to the transmission shaft 2, and a proper assembly gap can be formed between the worm wheel 4 and the transmission shaft 2, so that the worm wheel 4 can rotate freely without shaking.
It should be understood that the worm wheel 4 and the worm 5 are engaged through a gear, and since the worm wheel 4 and the worm 5 have a unidirectional transmission and a reverse "locking" function, the worm 5 can drive the worm wheel 4 to rotate, but the worm wheel 4 cannot drive the worm 5 to rotate. This ensures that the fine adjustment knob 6 can drive the operation handle 1 to rotate, but the operation handle 1 cannot drive the fine adjustment knob 6 to rotate.
Preferably, the worm wheel 4 and the worm 5 are supported by bearings (or bushings) at both ends.
Specifically, as a specific embodiment of the damping structure 3, the damping structure 3 includes an outer ring portion, an intermediate portion, and an inner ring portion, the outer ring portion and the inner ring portion are connected by the intermediate portion, the outer ring portion is fixedly connected with the worm wheel 4, the inner ring portion is fixedly connected with the transmission shaft 2, and the intermediate portion is filled with a damping material.
It will be appreciated that the outer ring portion is synchronised with the worm wheel 4 and the inner ring portion is synchronised with the drive shaft 2, and the intermediate portion is capable of generating damping, and that a rotational damping torque is generated within the damping structure when the outer and inner ring portions of the damping structure are rotated relative to one another.
Preferably, the damping material comprises silicone oil.
Preferably, the rotation angle acquisition module includes a resolver.
It should be noted that, the rotation angle acquisition module is not illustrated in fig. 1 and fig. 2, and the rotation angle acquisition module may be disposed at any position of the transmission shaft 2, so as not to affect the normal adjustment.
The transmission path during the operation of the fine adjustment mechanism provided by the present invention will be described in detail with reference to fig. 1 to 3.
In the case 1, when the operating handle 1 is rotated clockwise (or counterclockwise), the operating handle 1 drives the transmission shaft 2 and the inner ring part of the damping structure 3 to synchronously rotate; because the worm wheel 4 can not transmit the rotation to the worm 5, the worm 5 and the worm wheel 4 are in a locked state, and at the moment, the outer ring part of the damping structure 3, the worm wheel 4, the worm 5 and the fine adjustment knob 6 are kept static and do not rotate; meanwhile, as the outer ring part and the inner ring part of the damping structure 3 rotate relatively, damping torque can be generated inside the damping structure 3, and the stability of the operating handle 1 in the rotating process is ensured; when the operating handle 1 is suspended at any position, the moment generated by the gravity of the operating handle 1 is not enough to overcome the maximum damping moment of the damping structure, so that the operating handle 1 keeps a static state.
In case 2, when the fine adjustment knob 6 is rotated forward and backward, the fine adjustment knob 6 drives the worm 5 to rotate; the worm 5 transmits the rotation to the worm wheel 4, so that the worm wheel 4 and the outer ring part of the damping structure 3 can synchronously rotate along with the worm 5; at this moment, the damping torque inside the damping structure 3 overcomes the torque and other resisting torques generated by the self gravity of the operating handle 1, so as to drive the transmission shaft 2 and the operating handle 1 to synchronously rotate.
As a second aspect of the present invention, a throttle control system is provided, where the throttle control system includes a controller and the foregoing fine adjustment mechanism, a rotation angle acquisition module of the fine adjustment mechanism is in communication connection with the controller, and the controller can process a rotation angle signal acquired by the rotation angle acquisition module to obtain a control signal.
According to the throttle control system provided by the invention, the fine adjustment mechanism is adopted, and the damping structure and the one-way transmission mechanism are arranged, so that the rotation of the operating handle can be driven only by the rotation of the fine adjustment knob, and the adjustment rotation of the fine adjustment knob cannot be driven when the operating handle rotates, therefore, the fine adjustment mechanism in the throttle control system adopts pure mechanical transmission, and compared with an adjustment mode in which a stepping motor and a photoelectric sensor are combined in the prior art, the throttle control system has the advantages of higher stability, short transmission path, more compact structure and more stable transmission.
Specifically, throttle control system includes driver and motor, the driver with the controller is connected, the motor with the driver is connected, the throttle switch can be connected to the output of motor, the driver can be right control signal produces drive signal, the motor can be according to drive signal adjusts the throttle switch.
It can be understood that the rotation angle of the transmission shaft of the fine adjustment mechanism is collected through the rotation angle collection module, the collected rotation angle signal is sent to the controller, the controller processes the rotation angle information to obtain a control signal, the control signal is sent to the driver, and the driver obtains a driving signal according to the control signal, so that the motor is driven to adjust the throttle switch, and the throttle control function is achieved.
Preferably, the controller comprises a PLC controller.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (6)
1. A fine adjustment mechanism, characterized in that the fine adjustment mechanism comprises: operating handle (1), transmission shaft (2), damping structure (3), one-way drive mechanism, fine setting knob (6) and rotation angle collection module, operating handle (1) with the one end of transmission shaft (2) is connected, damping structure (3) set up on transmission shaft (2), one-way drive mechanism with damping structure (3) are connected, fine setting knob (6) set up on one-way drive mechanism, rotation angle collection module sets up on transmission shaft (2), fine setting knob (6) can drive the rotation of one-way drive mechanism when rotatory, the rotation of one-way drive mechanism can drive through the rotation of damping structure (3) the rotation of transmission shaft (2), the rotation of transmission shaft (2) can drive the rotation of operating handle (1), rotation angle collection module is used for with controller communication connection, the rotation angle acquisition module can send the acquired rotation angle signal of the transmission shaft (2) to the controller;
the one-way transmission mechanism comprises a worm wheel (4) and a worm (5), the worm wheel (4) is connected with the damping structure (3), the worm (5) is connected with the worm wheel (4), the fine adjustment knob (6) is arranged at one end of the worm (5), and the worm (5) can drive the worm wheel (4) to rotate;
the damping structure (3) comprises an outer ring part, a middle part and an inner ring part, the outer ring part and the inner ring part are connected through the middle part, the outer ring part is fixedly connected with the worm wheel (4), the inner ring part is fixedly connected with the transmission shaft (2), and damping materials are filled in the middle part.
2. The fine adjustment mechanism of claim 1, wherein the damping material comprises silicone oil.
3. The fine-tuning mechanism of claim 1, wherein the rotation angle acquisition module comprises a rotary transformer.
4. The throttle control system is characterized by comprising a controller and the fine adjustment mechanism as claimed in any one of claims 1 to 3, wherein a rotation angle acquisition module of the fine adjustment mechanism is in communication connection with the controller, and the controller can process rotation angle signals acquired by the rotation angle acquisition module to obtain control signals.
5. The throttle control system of claim 4, wherein the throttle control system comprises a driver and a motor, the driver is connected with the controller, the motor is connected with the driver, an output end of the motor can be connected with a throttle switch, the driver can generate a driving signal for the control signal, and the motor can adjust the throttle switch according to the driving signal.
6. The throttle control system of claim 4, wherein the controller comprises a PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910057861.6A CN109779763B (en) | 2019-01-22 | 2019-01-22 | Fine adjustment mechanism and throttle control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910057861.6A CN109779763B (en) | 2019-01-22 | 2019-01-22 | Fine adjustment mechanism and throttle control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109779763A CN109779763A (en) | 2019-05-21 |
| CN109779763B true CN109779763B (en) | 2021-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910057861.6A Active CN109779763B (en) | 2019-01-22 | 2019-01-22 | Fine adjustment mechanism and throttle control system |
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| CN (1) | CN109779763B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201350566Y (en) * | 2009-02-17 | 2009-11-25 | 浙江荣德机械有限公司 | Worm-wheel separating type fine-tuning mechanism |
| CN102519732B (en) * | 2011-12-30 | 2014-03-26 | 株洲南方燃气轮机成套制造安装有限公司 | Angle regulating device |
| CN102788113A (en) * | 2012-07-18 | 2012-11-21 | 中国船舶重工集团公司第七○二研究所 | Squeeze film damper for transmission shafting |
| CN205302079U (en) * | 2015-12-16 | 2016-06-08 | 沈阳航天新星机电有限责任公司 | Take fine -tuning of rotation handle |
| CN208381658U (en) * | 2018-05-11 | 2019-01-15 | 襄阳海特测控技术有限公司 | A kind of swivel head adjustment device of contact net laser measuring apparatus |
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- 2019-01-22 CN CN201910057861.6A patent/CN109779763B/en active Active
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