CN210770003U - Intelligent control system for equipment vibration - Google Patents
Intelligent control system for equipment vibration Download PDFInfo
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- CN210770003U CN210770003U CN201921766384.2U CN201921766384U CN210770003U CN 210770003 U CN210770003 U CN 210770003U CN 201921766384 U CN201921766384 U CN 201921766384U CN 210770003 U CN210770003 U CN 210770003U
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Abstract
The utility model relates to a damping equipment, specifically speaking relate to equipment vibration intelligence control system. The vibration isolation device adopts sensor data acquisition which is convenient to arrange, and the vibration isolation device enables the vibration equipment to be in a stable state no matter what kind of vibration effect the vibration isolation device is used for. The vibration device comprises an acceleration sensor, a supporting spring and a hydraulic damper, wherein the acceleration sensor, the supporting spring and the hydraulic damper are arranged on the bottom surface of the vibration device; an oil inlet nozzle of the hydraulic damper is connected with a hydraulic workstation, the hydraulic damper comprises a damper cavity, a hydraulic piston is arranged in the damper cavity, a plug rod of the piston penetrates out of the damper cavity, a hydraulic support plate for supporting vibration equipment is arranged at one end of the cavity, through which the plug rod penetrates out, and the upper surface of the hydraulic support plate is parallel to the lower surface of the plug head; the damper is characterized in that an oil inlet nozzle and an oil outlet nozzle are arranged on the damper cavity, an anti-collision ring is sleeved outside each of the oil inlet nozzle and the oil outlet nozzle, and an adjusting device for adjusting the oil inlet amount is arranged outside the damper cavity and on the oil inlet nozzle.
Description
Technical Field
The invention relates to vibration reduction equipment, in particular to an intelligent control system for equipment vibration.
Background
In the operation process of mechanical equipment, because the rotor is eccentric, or in the variable speed processes such as the starting and stopping of the motor, if the rigidity and damping parameters of the system are not properly configured, obvious vibration is easily generated, so the operation precision and the service life of the motor are seriously influenced, and in addition, the vibration of the motor can also generate huge noise, so the pollution to the working environment is easily caused.
The traditional method is to place vibration isolators at four feet of a motor, but has the limitation that the form of exciting force needs to be obtained in advance, the rigidity and damping parameters of the vibration isolator can not change along with the change of the size of the exciting force of the motor, only vibration caused by a part of exciting force can be filtered out, the exciting force in the calculation process of the traditional vibration isolation method is obtained through calculation, the form of the exciting force in the actual working condition is random, and the exciting force is difficult to collect.
Therefore, a damping-controllable motor vibration control system needs to be developed, and the damping value is adjusted according to the acceleration value acquired by the sensor to realize the vibration isolation effect of the system.
Disclosure of Invention
The invention provides an intelligent control system for equipment vibration, aiming at overcoming the defects in the prior art, and the intelligent control system for equipment vibration adopts a sensor which is convenient to arrange for data acquisition and enables vibration equipment to be in a stable state under any vibration action through a vibration isolation device.
In order to achieve the purpose, the invention adopts the following technical scheme that the vibration equipment comprises an acceleration sensor, a supporting spring and a hydraulic damper, wherein the acceleration sensor, the supporting spring and the hydraulic damper are arranged on the bottom surface of the vibration equipment;
an oil inlet nozzle of the hydraulic damper is connected with a hydraulic workstation, the hydraulic damper comprises a damper cavity, a hydraulic piston is arranged in the damper cavity, and the hydraulic piston and the damper cavity are assembled concentrically; a plug rod of the piston penetrates out of a cavity of the damper, an anti-friction sleeve is arranged on the upper penetrating part and the penetrating part of the cavity, a hydraulic support plate for supporting vibration equipment is arranged at the penetrating end of the plug rod, and a sealing ring for sealing is assembled between a plug head of the piston and the inner wall of the cavity of the damper; the upper surface of the hydraulic support plate is parallel to the lower surface of the plug head; the damper is characterized in that an oil inlet nozzle and an oil outlet nozzle are arranged on the damper cavity, an anti-collision ring is sleeved outside each of the oil inlet nozzle and the oil outlet nozzle, and an adjusting device for adjusting the oil inlet amount is arranged outside the damper cavity and on the oil inlet nozzle.
As a preferred scheme of the invention, the adjusting device comprises a wedge-shaped plug, wherein the wedge-shaped plug vertically penetrates through the outer wall and is sleeved with an oil inlet nozzle of the anti-collision ring; the outer wall of the wedge-shaped plug is in threaded connection with the anti-collision ring, the head end of the wedge-shaped plug is connected with the servo motor through the coupler, the pointed tail end of the wedge-shaped plug enters the oil inlet nozzle oil duct through the through hole in the side wall of the oil inlet nozzle, the servo motor rotates to drive the wedge-shaped plug to rotate, and the depth of the screwed oil duct at the tail end of the wedge-shaped plug is deepened or becomes shallow (the purpose of adjusting the flow rate is achieved).
As another preferred scheme of the invention, a shaft sleeve is positioned between the servo motor and the anti-collision ring and sleeved outside the coupler; the servo motor shell is connected with the shaft sleeve.
As another preferable aspect of the present invention, an acceleration sensor is mounted at each of four corners of the bottom surface of the vibration device.
In another preferred embodiment of the present invention, the anti-friction sleeve is made of a nylon material.
As another preferred aspect of the present invention, the oil inlet nozzle and the oil outlet nozzle are located opposite to each other and the center line of the oil inlet nozzle and the center line of the oil outlet nozzle are collinear.
As another preferable aspect of the present invention, the acceleration sensor and the servo motor are both connected to a controller (control device).
In another preferred embodiment of the present invention, the bottom of the supporting spring is located on the ground, and the top of the supporting spring is supported on the bottom of the vibrating device.
As another preferable scheme of the invention, a switching solenoid valve is arranged on a connecting pipeline between the hydraulic workstation and the oil inlet nozzle.
As another preferred scheme of the present invention, the controller is embedded with a damping value estimation algorithm based on an observer theory, the algorithm is applied to calculate a damping value for enabling the vibration device to be in a stable state, the hydraulic damper is applied to achieve control of the damping value, and the damping values of the four corners of the bottom surface are respectively adjusted to enable the vibration device to be in the stable state all the time, thereby achieving intelligent vibration control of the vibration device.
The vibration control method based on the intelligent control system for equipment vibration specifically comprises the following steps:
step 1, after vibration equipment vibrates, acquiring acceleration data of four corners of the bottom surface of the vibration equipment through an acceleration sensor, and inputting the acceleration data into a controller;
step 2, according to the formula (1), knowing the acceleration data
Applying observer theory to estimate the displacement value x and the velocity value
Wherein m is the mass of the vibration device 1;
generating post-vibration acceleration data for the vibration apparatus 1; c is the damping value of the vibration device 1,
generating post-vibration speed data for the vibration apparatus 1; k is a stiffness value of the vibration apparatus 1; x is a displacement value after the vibration device 1 generates vibration; f is the force to which the vibrating apparatus 1 is subjected;
and 4, controlling a damping value generated by the hydraulic damper by using the servo motor to rotate the wedge-shaped plug, so that the vibration equipment is in a stable state.
Compared with the prior art, the invention has the beneficial effects.
The invention calculates the damping value which enables the vibration equipment to be in a stable state by applying an algorithm, realizes the control of the damping value by applying the hydraulic damper, enables the vibration equipment to be in the stable state all the time by respectively adjusting the damping values of four corners of the bottom surface, and realizes the intelligent vibration control of the vibration equipment.
Drawings
The invention is further described with reference to the following figures and detailed description. The scope of the invention is not limited to the following expressions.
Fig. 1 is a schematic view of the working state of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic view of the structure of the adjusting device of the present invention.
In the figure, 1-a vibrating device; 3-a support spring; 4-a hydraulic damper; 5-an electromagnetic valve; 6-hydraulic work station; 7-a controller; 8-a hydraulic support plate; 9-an anti-friction sleeve; 10-an anti-collision ring; 11-an oil outlet nozzle; 12-a plug head; 13-sealing ring; 14-a servo motor; 15-a wedge plug; 16-an oil inlet nozzle; the 17 is a coupler, and the 18 is a shaft sleeve.
Detailed Description
As shown in fig. 1 to 3, the present invention includes an acceleration sensor, a support spring 3 and a hydraulic damper 4 provided on the bottom surface of a vibration device 1; an oil inlet nozzle 16 of the hydraulic damper 4 is connected with the hydraulic workstation 6, the hydraulic damper 4 comprises a damper cavity, a hydraulic piston is arranged in the damper cavity, and the hydraulic piston and the damper cavity are assembled concentrically; a plug rod of the piston penetrates out of a cavity of the damper, an anti-friction sleeve 9 is arranged on the upper penetrating part and the penetrating part of the cavity, a hydraulic support plate 8 for supporting vibration equipment is arranged at the penetrating end of the plug rod, and a sealing ring 13 for sealing is assembled between a plug head 12 of the piston and the inner wall of the cavity of the damper; the upper surface of the hydraulic support plate 8 is parallel to the lower surface of the plug 12; the damper cavity is provided with an oil inlet nozzle 16 and an oil outlet nozzle 11, the oil inlet nozzle 16 and the oil outlet nozzle 11 are respectively sleeved with an anti-collision ring 10, and an adjusting device for adjusting the oil inlet amount is arranged outside the damper cavity and on the oil inlet nozzle 16.
As a preferable scheme of the invention, the adjusting device comprises a wedge-shaped plug 15, wherein the wedge-shaped plug 15 vertically penetrates through the outer wall and is sleeved with an oil inlet nozzle 16 of the anti-collision ring 10; the outer wall of the wedge-shaped plug 15 is in threaded connection with the anti-collision ring 10, the head end of the wedge-shaped plug 15 is connected with the servo motor 14 through the coupler 17, the pointed tail end of the wedge-shaped plug 15 enters the oil duct of the oil inlet nozzle from the through hole in the side wall of the oil inlet nozzle 16, the servo motor 14 rotates to drive the wedge-shaped plug 15 to rotate, and the depth of the tail end of the wedge-shaped plug screwed into the oil duct is deepened or becomes shallow (the purpose of adjusting the flow rate is achieved).
As another preferred scheme of the invention, a shaft sleeve 18 is positioned between the servo motor 14 and the anti-collision ring 10 and sleeved outside the shaft coupling; the servo motor shell is connected with the shaft sleeve.
As another preferable mode of the present invention, an acceleration sensor is mounted at each of four corners of the bottom surface of the vibration device 1.
As another preferred aspect of the present invention, the oil inlet nozzle 16 and the oil outlet nozzle 11 are located opposite to each other and the center line of the oil inlet nozzle 16 is collinear with the center line of the oil outlet nozzle 11.
As another preferable aspect of the present invention, the acceleration sensor and the servo motor 14 are both connected to the controller 7 (control device).
As another preferable scheme of the present invention, the bottom of the supporting spring 3 is located on the ground, the top of the supporting spring 3 is supported on the bottom of the vibration device 1, and the supporting spring 3 provides restoring force for restoring the balance state of the vibration device 1 after the vibration device 1 vibrates.
As another preferable scheme of the present invention, an on-off solenoid valve is arranged on a connection line between the hydraulic workstation 6 and the oil inlet nozzle 16.
As another preferred scheme of the present invention, the controller is embedded with a damping value estimation algorithm based on an observer theory, the algorithm is applied to calculate a damping value for enabling the vibration device to be in a stable state, the hydraulic damper is applied to achieve control of the damping value, and the damping values of the four corners of the bottom surface are respectively adjusted to enable the vibration device to be in the stable state all the time, thereby achieving intelligent vibration control of the vibration device.
The vibration control method based on the intelligent control system for equipment vibration specifically comprises the following steps:
step 1, after vibration equipment vibrates, acquiring acceleration data of four corners of the bottom surface of the vibration equipment through an acceleration sensor, and inputting the acceleration data into a controller;
step 2, according to the formula (1), knowing the acceleration data
Applying observer theory to estimate the displacement value x and the velocity value
Wherein m is the mass of the vibration device 1;
generating post-vibration acceleration data for the vibration apparatus 1; c is the damping value of the vibration device 1,
generating post-vibration speed data for the vibration apparatus 1; k is a stiffness value of the vibration apparatus 1; x is a displacement value after the vibration device 1 generates vibration; f is the force to which the vibrating apparatus 1 is subjected;
and 4, controlling a damping value generated by the hydraulic damper by using the servo motor to rotate the wedge-shaped plug, so that the vibration equipment is in a stable state.
Referring to fig. 1-3, the invention is an intelligent control system for equipment vibration, comprising a vibration equipment 1, four acceleration sensors, a support spring 3 and a hydraulic damper 4 are arranged at four corners of the bottom surface of the vibration equipment 1, a hydraulic workstation 5 is connected with the hydraulic damper through an oil inlet nozzle 16, and the acceleration sensors and a servo motor 14 are connected with an acquisition and controller 7. A hydraulic piston 12 is arranged in the hydraulic damper 4, the hydraulic piston 12 and the cavity of the hydraulic damper 4 are assembled concentrically, a sealing ring 13 is arranged in the middle of the piston 12, the upper surface of a hydraulic support plate 8 is parallel to the upper surface of a piston head 12, and the central line of an oil inlet nozzle 16 is coincided with the central line of an oil outlet nozzle 11 hole.
The hydraulic damper 4 provides pressure hydraulic oil through the hydraulic workstation 6, the oil pressure and flow of the hydraulic oil are controlled through the electromagnetic valve 5, the hydraulic oil enters the lower cavity of the hydraulic damper from the oil inlet nozzle 16 of the hydraulic damper 4 and flows back to the hydraulic workstation 6 through the oil outlet nozzle 11 of the hydraulic damper 4, when the vibration mode of the vibration device 4 is vibration with variable amplitude and variable acceleration under the action of the working condition, the hydraulic support is downward displaced under the action of the vibration device 1, namely the hydraulic support plate 8 moves downward through the anti-friction sleeve 9, the middle part of the piston is provided with the sealing ring 13 to prevent the hydraulic oil in the lower cavity from flowing into the upper cavity, when the piston moves downward to the bottom of the lower cavity of the hydraulic damper 4, the piston stops moving under the action of the anti-collision ring 10 to prevent the hydraulic piston head 12 from damaging only the oil outlet nozzle 11 and the oil outlet nozzle 16, and after the vibration device 1 vibrates, the acceleration data of the four corners, the acceleration data are input into a controller 7, the controller 7 calculates damping values required to be provided by the four corners of the bottom surface of the vibration equipment 1 in the stable state according to different acceleration values, the servo motor 14 is used for rotating the wedge-shaped plugs 15 to control the damping values generated by the hydraulic damper 4, the acceleration sensors at the four corners of the bottom surface are respectively used for obtaining corresponding acceleration data, and the steps are used for respectively realizing vibration reduction of the four corners of the bottom surface, so that the vibration equipment 1 is in the stable state.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (8)
1. An intelligent control system for equipment vibration is characterized by comprising an acceleration sensor, a supporting spring and a hydraulic damper, wherein the acceleration sensor, the supporting spring and the hydraulic damper are arranged on the bottom surface of vibration equipment;
an oil inlet nozzle of the hydraulic damper is connected with a hydraulic workstation, the hydraulic damper comprises a damper cavity, a hydraulic piston is arranged in the damper cavity, and the hydraulic piston and the damper cavity are assembled concentrically; a plug rod of the piston penetrates out of a cavity of the damper, an anti-friction sleeve is arranged on the upper penetrating part and the penetrating part of the cavity, a hydraulic support plate for supporting vibration equipment is arranged at the penetrating end of the plug rod, and a sealing ring for sealing is assembled between a plug head of the piston and the inner wall of the cavity of the damper; the upper surface of the hydraulic support plate is parallel to the lower surface of the plug head; the damper is characterized in that an oil inlet nozzle and an oil outlet nozzle are arranged on the damper cavity, an anti-collision ring is sleeved outside each of the oil inlet nozzle and the oil outlet nozzle, and an adjusting device for adjusting the oil inlet amount is arranged outside the damper cavity and on the oil inlet nozzle.
2. The intelligent control system for equipment vibration according to claim 1, characterized in that: the adjusting device comprises a wedge-shaped plug, and the wedge-shaped plug vertically penetrates through the outer wall and is sleeved with an oil inlet nozzle of the anti-collision ring; the outer wall of the wedge-shaped plug is in threaded connection with the anti-collision ring, the head end of the wedge-shaped plug is connected with the servo motor through the coupler, the pointed tail end of the wedge-shaped plug enters the oil inlet nozzle oil duct through the through hole in the side wall of the oil inlet nozzle, the servo motor rotates to drive the wedge-shaped plug to rotate, and the depth of the tail end of the wedge-shaped plug screwed in the oil duct is deepened or becomes shallow.
3. The intelligent control system for equipment vibration according to claim 1, characterized in that: a shaft sleeve is positioned between the servo motor and the anti-collision ring and sleeved outside the coupler; the servo motor shell is connected with the shaft sleeve.
4. The intelligent control system for equipment vibration according to claim 1, characterized in that: and four corners of the bottom surface of the vibration equipment are respectively provided with an acceleration sensor.
5. The intelligent control system for equipment vibration according to claim 1, characterized in that: the anti-friction sleeve is made of a nylon material.
6. The intelligent control system for equipment vibration according to claim 1, characterized in that: the oil inlet nozzle and the oil outlet nozzle are opposite in position, and the central line of the oil inlet nozzle and the central line of the oil outlet nozzle are collinear.
7. The intelligent control system for equipment vibration according to claim 1, characterized in that: and the acceleration sensor and the servo motor are connected with the controller.
8. The intelligent control system for equipment vibration according to claim 1, characterized in that: the bottom of the supporting spring is positioned on the ground, and the top of the supporting spring is supported at the bottom of the vibration equipment; and a switching electromagnetic valve is arranged on a connecting pipeline between the hydraulic workstation and the oil inlet nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921766384.2U CN210770003U (en) | 2019-10-21 | 2019-10-21 | Intelligent control system for equipment vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921766384.2U CN210770003U (en) | 2019-10-21 | 2019-10-21 | Intelligent control system for equipment vibration |
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| Publication Number | Publication Date |
|---|---|
| CN210770003U true CN210770003U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921766384.2U Active CN210770003U (en) | 2019-10-21 | 2019-10-21 | Intelligent control system for equipment vibration |
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|---|---|
| CN (1) | CN210770003U (en) |
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- 2019-10-21 CN CN201921766384.2U patent/CN210770003U/en active Active
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