CN210072424U - Intelligent vibration control rotary mechanical cantilever type elastic supporting component - Google Patents
Intelligent vibration control rotary mechanical cantilever type elastic supporting component Download PDFInfo
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- CN210072424U CN210072424U CN201921224225.XU CN201921224225U CN210072424U CN 210072424 U CN210072424 U CN 210072424U CN 201921224225 U CN201921224225 U CN 201921224225U CN 210072424 U CN210072424 U CN 210072424U
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Abstract
A cantilever type elastic supporting component of a rotary machine for intelligent vibration control relates to an elastic supporting component. The utility model relates to a solve the not good and unable vibration energy of inhibiting the rotor effectively, initiatively of current cantilever type elastic support structure damping effect to the problem of the transmission problem of stator machine casket. The utility model comprises a rotor, a bearing, a stator part and an external power supply, the device also comprises a cantilever type elastic supporting part, a vibration sensing unit and an active control unit, the left end of the elastic supporting part is connected with the vibration sensing unit, the right end inner ring of the cantilever type elastic supporting part is connected with the rotor through the bearing, the right end outer ring of the cantilever type elastic supporting part is connected with the active control unit, and the stator part is arranged on the active control unit; the active control unit is connected with the vibration sensing unit through an external power supply. The utility model discloses be applied to energy power technical field.
Description
Technical Field
The utility model relates to an elastic support part, concretely relates to rotary machinery cantilever type elastic support part of intelligence vibration control belongs to energy power technical field.
Background
In a conventional high-speed rotating machine such as an aircraft engine and a gas turbine, a supporting structure of a rotor system of the high-speed rotating machine generally adopts a cantilever type elastic supporting structure, such as a pull rod type, a squirrel cage type and the like, the elastic supporting of the conventional structure generally only plays a role in adjusting the rigidity of the rotor system, and the vibration damping effect of the rotor system is usually only dependent on material damping, so that the vibration damping effect is very small. Therefore, when the overall structure is arranged, a set of oil film shock absorbers are required to be connected in parallel to form a spring support damper passive damping system. In practical applications, the conventional damper damping structure of the spring-supported damper has a disadvantage that the squeezing effect of the oil film can only act when the vibration displacement of the rotor has a certain peak value (for example, when the rotation speed passes through a critical value), which cannot effectively and actively suppress the transmission of the vibration energy of the rotor to the stator casing, and increases the vibration noise of the rotary machine to a certain extent.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve current cantilever type elastic support structure damping effect not good and can't restrain the vibration energy of rotor effectively, initiatively to the transmission problem of stator cartridge receiver, and then provide a rotating machinery cantilever type elastic support part of intelligence vibration control.
The utility model discloses a solve the technical scheme that above-mentioned problem was taken and be:
a cantilever type elastic supporting component of a rotary machine controlled by intelligent vibration comprises a rotor, a bearing, a stator component and an external power supply, and further comprises a cantilever type elastic supporting component, a vibration sensing unit and an active control unit, wherein the left end of the elastic supporting component is connected with the vibration sensing unit, the inner ring at the right end of the cantilever type elastic supporting component is connected with the rotor through the bearing, the outer ring at the right end of the cantilever type elastic supporting component is connected with the active control unit, and the stator component is installed on the active control unit; the active control unit is connected with the vibration sensing unit through an external power supply.
Further, the cantilevered resilient support is a one-piece structure.
Furthermore, cantilever type elastic support spare includes installation limit, elastic deformation body and overhang end, installation limit, elastic deformation body and overhang end connect gradually into an organic whole from left to right.
Furthermore, the cantilever type elastic supporting part is made of high-elasticity alloy steel.
Further, the vibration sensing unit comprises a piezoelectric body and a vibration analysis module, wherein the piezoelectric body is arranged on the elastic deformation body; the piezoelectric body is connected with the vibration analysis module, and the vibration analysis module is connected with an external power supply through a lead.
Furthermore, the active control unit comprises an actuator base, an actuator, a current amplifier and an intelligent control module, wherein the actuator base is fixedly installed on the static piece, the actuator is installed on the outer ring of the suspension end, the actuator and the actuator base are both connected with the current amplifier, and the current amplifier is connected with the intelligent control module through a lead.
The utility model has the advantages that:
the vibration displacement of the rotor of the rotary machine causes the deformation body of the cantilever type elastic support to deform, so that the piezoelectric body generates a voltage signal, and a vibration sensing system of the rotor of the rotary machine is formed. According to the piezoelectric effect, the relation between the vibration displacement of the rotary mechanical rotor and the output voltage of the piezoelectric body can be established, and vibration data of the rotary mechanical rotor is obtained through a vibration analysis module; the actuator base and the actuator fixed at the cantilever end of the cantilever type elastic support interact with each other through electromagnetic force, the deformation of the cantilever type elastic support can be inhibited through input signals, and further the active control of the rotor vibration of the rotary machine is realized, so that a rotary machine vibration active control system is formed; the vibration analysis module converts a piezoelectric signal of a piezoelectric body into a vibration signal of the rotary mechanical rotor, intelligently judges and generates a feedback signal in the intelligent control module through a neural network method, and then the feedback signal is respectively input to the actuator base and the actuator through the current amplifier, and the electromagnetic force in the direction opposite to the vibration of the rotary mechanical rotor is generated through the interaction of the feedback signal and the actuator base, so that the intelligent active control of the rotary mechanical rotor is realized; the utility model discloses can intelligent judgement, active control, effectively reduce the vibration of rotating machinery rotor, solve the not good problem of damping effect in traditional elastic support structure.
Drawings
FIG. 1 is a system schematic of a vibration sensing unit;
FIG. 2 is a schematic diagram of an active control system;
fig. 3 is a schematic diagram of the overall structure of the present invention.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to 3, and the present embodiment is an intelligent vibration-controlled rotary mechanical cantilever-type elastic support member 1, which includes a rotor 10, a bearing 11, a stator 9 and an external power supply 8, and is characterized in that: the device also comprises a cantilever type elastic supporting part 1, a vibration sensing unit and an active control unit, wherein the left end of the elastic supporting part 1 is connected with the vibration sensing unit, the inner ring at the right end of the cantilever type elastic supporting part 1 is connected with a rotor 10 through a bearing 11, the outer ring at the right end of the cantilever type elastic supporting part 1 is connected with the active control unit, and a stator part 9 is arranged on the active control unit; the active control unit is connected with the vibration sensing unit through an external power supply 8.
The outer ring of the bearing 11 and the inner hole of the cantilever end 1-3 of the cantilever elastic support 1 are sleeved together in a matching way through small transition (small interference or small clearance).
The second embodiment is as follows: the present embodiment is described with reference to fig. 1 to 3, and the cantilevered elastic support 1 of the present embodiment is an integrated structure. Other components and connections are the same as those in the first embodiment.
The third concrete implementation mode: the embodiment is described with reference to fig. 1 to 3, the cantilevered elastic support 1 of the embodiment includes a mounting edge 1-1, an elastic deformation body 1-2 and a cantilevered end 1-3, and the mounting edge 1-1, the elastic deformation body 1-2 and the cantilevered end 1-3 are connected into a whole in sequence from left to right.
Other components are connected in the same manner as in the first or second embodiment.
The fourth concrete implementation mode: in the present embodiment, the cantilever-type elastic support 1 is a cantilever-type elastic support 1 made of high-elasticity diamond material, and is described with reference to fig. 1 to 3. Other components and connections are the same as those in the first embodiment. Other components are connected in the same manner as in the first, second or third embodiment.
The fifth concrete implementation mode: the present embodiment is described with reference to fig. 1, and the vibration sensing unit of the present embodiment includes a piezoelectric body 2 and a vibration analysis module 5, where the piezoelectric body 2 is mounted on an elastic deformation body 1-2; the piezoelectric body 2 is connected to a vibration analysis module 5, and the vibration analysis module 5 is connected to an external power supply 8 through a lead wire.
The piezoelectric body 2 is fixedly connected on the deformation body of the cantilever type elastic support, and the vibration displacement of the rotor of the rotary machine causes the elastic deformation body 1-2 of the cantilever type elastic support 1 to deform, so that the piezoelectric body 2 generates a voltage signal, and a vibration sensing system of the rotor of the rotary machine is formed. The whirling vibration of the rotor of the rotary machine causes the dynamic deformation of the cantilever type elastic support 1, a dynamic voltage signal is generated on the piezoelectric body 2, the relation between the vibration displacement of the rotor of the rotary machine and the output voltage of the piezoelectric body can be established according to the piezoelectric effect, the vibration data of the rotor of the rotary machine is obtained through the vibration analysis module 5, and the vibration analysis method of the rotor of the rotary machine based on the piezoelectric signal of the piezoelectric body is formed.
Other components and connections are the same as those of the first, second, third or fourth embodiments.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 2, the active control unit of the present embodiment includes an actuator base 3, an actuator 4, a current amplifier 6 and an intelligent control module 7, the actuator base 3 is fixedly mounted on a stator 9, the actuator 4 is mounted on an outer ring of a suspension end 1-3, both the actuator 4 and the actuator base 3 are connected with the current amplifier 6, and the current amplifier 6 is connected with the intelligent control module 7 through a wire. The actuator 4 is fixed on the outer ring of the suspension wall end 1-3 through interference fit or bolt connection, and the actuator base 3 is installed on the static part 9 through fit or bolt connection.
By controlling the magnitude and direction of the current in the actuator 4, an electromagnetic force is generated between the actuator 4 and the actuator base 3 to actively control the vibration of the rotor. The actuator base 3 and the actuator 4 fixed on the cantilever end 1-3 of the cantilever type elastic supporting part 1 interact through electromagnetic force, the deformation of the cantilever type elastic supporting part 1 can be inhibited through the input signal,
further realizing the active control of the rotor vibration of the rotary machine and forming a rotary machine vibration active control system. The vibration analysis module 5 converts the piezoelectric signal of the piezoelectric body 2 into a vibration signal of the rotary mechanical rotor, intelligently judges and generates a feedback signal in the intelligent control module 7 through a neural network method, and then respectively outputs the feedback signal to the actuator base 3 and the actuator 4 through the current amplifier 6, and the interaction of the feedback signal and the actuator base 3 generates electromagnetic force in a direction opposite to the vibration of the rotary mechanical rotor, so that the intelligent active control of the rotary mechanical rotor is realized. Other components and connection relationships are the same as those in the first, second, third, fourth or fifth embodiment.
The working principle is as follows:
the utility model discloses can be used to the measurement and the active control of high-speed rotating machinery rotor vibration, like in aeroengine, gas turbine etc. high-speed rotating machinery's the elastic support structure.
When the rotary machine is in operation, the whirling vibration of the rotor 10 causes the cantilever-type elastic support deformable body to deform dynamically, thereby causing the piezoelectric body to generate a dynamic voltage signal. The relation between the vibration displacement of the rotary mechanical rotor and the output voltage of the piezoelectric body can be established according to the piezoelectric effect, and the vibration signal of the rotary mechanical rotor is obtained through the vibration analysis module. In the intelligent control module, vibration signals are intelligently judged by a neural network method and feedback control signals are generated and are respectively transmitted to the actuator base and the actuator through the current amplifier, and electromagnetic force in the direction opposite to the vibration of the rotary mechanical rotor is generated by the interaction of the vibration signals and the actuator base, so that the deformation of the cantilever type elastic support is inhibited, and the intelligent active control of the rotary mechanical rotor is realized.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment without departing from the technical scope of the present invention, but all the modifications, equivalent substitutions, and improvements made to the above embodiments within the spirit and principle of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a rotary machinery cantilever type elastic support part of intelligence vibration control, it includes rotor (10), bearing (11), stator spare (9) and external power source (8), its characterized in that: the rotary mechanical cantilever type elastic supporting component for intelligent vibration control further comprises a cantilever type elastic supporting part (1), a vibration sensing unit and an active control unit, wherein the left end of the cantilever type elastic supporting part (1) is connected with the vibration sensing unit, the inner ring of the right end of the cantilever type elastic supporting part (1) is connected with a rotor (10) through a bearing (11), the outer ring of the right end of the cantilever type elastic supporting part (1) is connected with the active control unit, and a stator part (9) is installed on the active control unit; the active control unit is connected with the vibration sensing unit through an external power supply (8).
2. The intelligent vibration controlled rotary machine cantilevered resilient support member of claim 1, wherein: the cantilever type elastic support (1) is of an integrated structure.
3. The intelligent vibration controlled rotary machine cantilevered resilient support member of claim 2, wherein: the cantilever type elastic support piece (1) comprises a mounting edge (1-1), an elastic deformation body (1-2) and a cantilever end (1-3), wherein the mounting edge (1-1), the elastic deformation body (1-2) and the cantilever end (1-3) are connected into a whole from left to right in sequence.
4. The intelligent vibration controlled rotary machine cantilevered resilient support member of claim 2, wherein: the cantilever type elastic supporting piece (1) is made of high-elasticity alloy materials.
5. The intelligent vibration controlled rotary machine cantilevered resilient support member of claim 1, wherein: the vibration sensing unit comprises a piezoelectric body (2) and a vibration analysis module (5), wherein the piezoelectric body (2) is arranged on the elastic deformation body (1-2); the piezoelectric body (2) is connected with the vibration analysis module (5), and the vibration analysis module (5) is connected with an external power supply (8) through a lead.
6. The intelligent vibration controlled rotary machine cantilevered resilient support member of claim 1, wherein: the active control unit comprises an actuator base (3), an actuator (4), a current amplifier (6) and an intelligent control module (7), wherein the actuator base (3) is fixedly installed on a static piece (9), the actuator (4) is installed on an outer ring of a suspension wall end (1-3), the actuator (4) and the actuator base (3) are both connected with the current amplifier (6), and the current amplifier (6) is connected with the intelligent control module (7) through a wire.
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| CN201921224225.XU CN210072424U (en) | 2019-07-31 | 2019-07-31 | Intelligent vibration control rotary mechanical cantilever type elastic supporting component |
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| CN201921224225.XU CN210072424U (en) | 2019-07-31 | 2019-07-31 | Intelligent vibration control rotary mechanical cantilever type elastic supporting component |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286701A (en) * | 2019-07-31 | 2019-09-27 | 中国船舶重工集团公司第七0三研究所 | A kind of rotating machinery cantilever type elastic bearing part of intelligent vibration control |
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2019
- 2019-07-31 CN CN201921224225.XU patent/CN210072424U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286701A (en) * | 2019-07-31 | 2019-09-27 | 中国船舶重工集团公司第七0三研究所 | A kind of rotating machinery cantilever type elastic bearing part of intelligent vibration control |
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