CN111828534A - Electromechanical equipment damping frame and damping method thereof - Google Patents
Electromechanical equipment damping frame and damping method thereof Download PDFInfo
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- CN111828534A CN111828534A CN202010675382.3A CN202010675382A CN111828534A CN 111828534 A CN111828534 A CN 111828534A CN 202010675382 A CN202010675382 A CN 202010675382A CN 111828534 A CN111828534 A CN 111828534A
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- plate
- straight cylinder
- sliding
- bearing plate
- buffer area
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
- F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/532—Electrorheological [ER] fluid dampers
Abstract
The invention discloses a buffering method of a shock absorption frame of electromechanical equipment, which mainly comprises the following using methods: s1, weakening low-intensity vibration; s2, weakening the vibration with medium intensity; s3, weakening high-strength vibration, and the shock absorption frame comprises a bearing plate, a support column and a straight cylinder, wherein the upper end of the support column is fixedly connected with the bearing plate, the lower end of the support column is fixedly connected with a circular plate, the circular plate is arranged in the straight cylinder in a sealing and sliding manner, a sliding plate is arranged in the straight cylinder in a sealing and sliding manner, the sliding plate is positioned below the circular plate and is parallel to the circular plate, a fixed plate is arranged at the upper end of the straight cylinder, a plurality of first springs are connected between the fixed plate and the circular plate, and a plurality of second springs are connected between the sliding plate and the bottom wall. The invention has long-term shock absorption effect, does not need excessive maintenance, has small instantaneous impact force because all parts are subjected to dynamic resistance in the shock absorption process, and can effectively ensure that the parts and electromechanical equipment are not damaged.
Description
Technical Field
The invention relates to the technical field of electromechanical equipment, in particular to an electromechanical equipment damping frame and a damping method thereof.
Background
Electromechanical devices cover a wide range, including but not limited to computer equipment, automation equipment, test equipment, analytical equipment, etc., some precise electromechanical devices need to avoid the interference of vibrations when working, the common damping and buffering method is to lay a rubber pad or add a flexible base at the bottom of the device, but this way buffering effect is not good enough, and can't deal with stronger vibrations, therefore, some electromechanical devices can be fixed on the shock-absorbing frame, the shock-absorbing frame generally utilizes the spring to convert the kinetic energy of the electromechanical devices into the elastic potential energy of the spring, thereby effectively reducing the vibration intensity of the electromechanical devices, but the support effect is poor, the service life is short, and long-term maintenance is needed.
The patent document with the granted publication number of CN109027113B proposes a magnetic resistance linkage damping device for electromechanical devices, which includes a first magnet, a second magnet, a third magnet and a fourth magnet, wherein the device supports the electromechanical devices by using the mutual repulsion between the first magnet and the third magnet, and between the fourth magnet and the second magnet, and achieves the damping effect by using the magnetic attraction between the third magnet and the fourth magnet and the repulsion between the corresponding magnets, thereby achieving the two effects of supporting and buffering;
however, most electromechanical devices have complex circuit modules inside, if the magnetism of the magnet is weak, the buffering and supporting effects are poor, if the magnetism of the magnet is strong, the device such as an inductor, a transformer and a relay in the circuit module can be adversely affected, so that the circuit module fails, the shells of many devices are made of metal, the magnet and the ferromagnetic metal have mutual attraction, and the buffer frame with the magnet as the main part can be applied in a narrow range, so that the large-scale popularization is not facilitated.
Therefore, the electromechanical equipment damping frame and the damping method thereof are provided.
Disclosure of Invention
The invention aims to solve the defect of poor buffering effect of a damping frame of electromechanical equipment in the prior art, and provides the damping frame of the electromechanical equipment and a buffering method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
s1, weakening low-intensity vibration: when the bearing plate vibrates slightly, the first spring converts kinetic energy into elastic potential energy and stores the elastic potential energy, and the circular plate is fixed;
s2, damping medium-intensity vibration: when the vibration amplitude of the bearing plate is large, the bearing plate presses the circular plate downwards through the support column, so that hydraulic oil flows into the first buffer area from the first liquid outlet hole, the kinetic energy of the bearing plate is converted into potential energy of the hydraulic oil and the counterweight plate, and the sliding plate is fixed;
s3, weakening high-intensity vibration: when the bearing plate shakes violently, the hydraulic oil extrudes the sliding plate to enable the sliding plate to move downwards, after the trigger piece touches the position switch, the electrorheological fluid is located in a uniform electric field, the shearing force is increased, and most of kinetic energy of the bearing plate is converted into internal energy of the electrorheological fluid;
the damping process also relates to a damping frame which comprises a bearing plate, a supporting column and a straight cylinder, wherein the upper end of the supporting column is fixedly connected with the bearing plate, the lower end of the supporting column is fixedly connected with a circular plate, the circular plate is arranged in the straight cylinder in a sealing and sliding manner, a sliding plate is arranged in the straight cylinder in a sealing and sliding manner, the sliding plate is positioned below the circular plate and is parallel to the circular plate, a fixed plate is arranged at the upper end of the straight cylinder, a plurality of first springs are connected between the fixed plate and the circular plate, a plurality of second springs are connected between the sliding plate and the bottom wall of the straight cylinder, and an upper capacitor plate is fixedly arranged;
an outer cylinder is fixedly sleeved outside the straight cylinder, a counterweight plate, a partition plate and a bearing plate are sequentially arranged between the outer cylinder and the straight cylinder in a sealing mode from top to bottom, the counterweight plate is connected with the outer cylinder and the side wall of the straight cylinder in a sliding mode, a lower capacitor plate is fixedly arranged on the lower surface of the bearing plate, the counterweight plate and the partition plate jointly form a first buffer area, the partition plate and the bearing plate jointly form a second buffer area, and the bearing plate and the inner bottom wall of the outer cylinder jointly form a waterproof area;
a plurality of first liquid outlet holes communicated with the first buffer area and a second liquid outlet communicated with the second buffer area are symmetrically formed in the side wall of the straight barrel, an exhaust port communicated with the second buffer area is formed in the side wall of the outer barrel, and an elastic membrane is arranged in the second buffer area.
The hydraulic oil is filled between the circular plate and the sliding plate, the electrorheological fluid is filled between the sliding plate and the bottom wall of the straight cylinder, the power supply is installed in the waterproof area, the position switch is arranged on the inner side wall of the straight cylinder, the trigger piece is arranged on the side wall of the sliding plate, and the position of the position switch corresponds to the position of the trigger piece.
The invention has the beneficial effects that:
1. when the bearing plate vibrates slightly, the first spring converts kinetic energy into elastic potential energy and stores the elastic potential energy, so that vibration is effectively weakened, the compression amount of the first spring is far smaller than the maximum deformation amount of the first spring, and fatigue damage of the first spring caused by repeated vibration is hardly caused.
2. When the loading plate shakes greatly, the most of kinetic energy of the loading plate during shaking can be converted into the elastic potential energy of the first spring and the gravitational potential energy of the counterweight plate, and a small part of kinetic energy is converted into heat loss through friction, so that the first spring is in a low fatigue loss period, the service life of the first spring is prolonged, the counterweight plate hardly loses in the rising and falling processes, and the damping effect of the device can be guaranteed to be effective for a long time.
3. When the bearing plate shakes violently, hydraulic oil can extrude the sliding plate, so that the sliding plate slides downwards, electrorheological fluid flows to enable the elastic membrane to deform, and at the moment, the second spring and the elastic membrane can absorb part of energy to further weaken the vibration of the bearing plate.
4. Through setting up devices such as power, last condenser plate, lower condenser plate, can make electrorheological fluids be in even strong electric field, can receive the resistance that changes when the sliding plate promotes electrorheological fluids to make the stable and quick vibrations that stop of loading board.
5. In the process of weakening the vibration of the bearing plate, all the parts such as the bearing plate, the supporting column, the circular plate and the like are subjected to dynamic resistance, so that the instantaneous impact force on each part is small, the vibration can be effectively and quickly weakened, and a better buffering effect is realized on electromechanical equipment;
6. in the invention, the upper capacitor plate and the lower capacitor plate are close to the bottom of the device and are far away from the bearing table and the electromechanical equipment on the bearing table, and the generated uniform electric field is positioned between the upper capacitor plate and the lower capacitor plate, so that the influence on the outside is small, and the influence on the precise electromechanical equipment cannot be generated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic structural view of the bearing plate of the present invention when it vibrates slightly;
FIG. 4 is a schematic structural view of the present invention when the carrier plate vibrates violently.
In the figure: the device comprises a bearing plate 1, a support column 2, a circular plate 201, a fixed plate 3, a first spring 4, a straight cylinder 5, a sliding plate 6, an upper capacitor plate 7, a second spring 8, an outer cylinder 9, a counterweight plate 10, a first buffer area 1001, a partition plate 11, a second buffer area 1101, a bearing plate 12, a waterproof area 1201, an elastic membrane 13, an exhaust port 14, a lower capacitor plate 15, a power supply 16, a position switch 17, a trigger 18 and a first liquid outlet 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a method for buffering a shock absorption frame of an electromechanical device specifically comprises the following steps:
s1, weakening low-intensity vibration: when the bearing plate 1 generates micro vibration, the first spring 4 converts kinetic energy into elastic potential energy and stores the elastic potential energy, and the circular plate 201 is fixed;
s2, damping medium-intensity vibration: when the vibration amplitude of the bearing plate 1 is large, the bearing plate 1 presses the circular plate 201 downwards through the support pillar 2, so that hydraulic oil flows into the first buffer area 1001 from the first liquid outlet hole 19, the kinetic energy of the bearing plate 1 is converted into potential energy of the hydraulic oil and the counterweight plate 10, and the sliding plate 6 is fixed;
s3, weakening high-intensity vibration: when the bearing plate 1 shakes violently, the hydraulic oil extrudes the sliding plate 6 to enable the sliding plate to move downwards, after the trigger 18 touches the position switch 17, the electrorheological fluid is located in a uniform electric field, the shearing force is increased, and most of kinetic energy of the bearing plate 1 is converted into internal energy of the electrorheological fluid;
the damping frame comprises a bearing plate 1, a supporting column 2 and a straight cylinder 5, wherein the upper end of the supporting column 2 is fixedly connected with the bearing plate 1, the lower end of the supporting column 2 is fixedly connected with a circular plate 201, the circular plate 201 is arranged in the straight cylinder 5 in a sealing and sliding manner, a sliding plate 6 is arranged in the straight cylinder 5 in a sealing and sliding manner, the sliding plate 6 is positioned below the circular plate 201 and is parallel to the circular plate 201, a fixing plate 3 is arranged at the upper end of the straight cylinder 5, a plurality of first springs 4 are connected between the fixing plate 3 and the circular plate 201, a plurality of second springs 8 are connected between the sliding plate 6 and the bottom wall of the straight cylinder 5, and an upper capacitor plate 7 is fixedly arranged in the;
the stiffness coefficient of the second spring 8 is larger than that of the first spring 4, and the first liquid outlet 19 is a small hole;
an outer cylinder 9 is fixedly sleeved outside the straight cylinder 5, a weight plate 10, a partition plate 11 and a bearing plate 12 are sequentially arranged between the outer cylinder 9 and the straight cylinder 5 from top to bottom in a sealing mode, the weight plate 10 is connected with the outer cylinder 9 and the side wall of the straight cylinder 5 in a sliding mode, a lower capacitor plate 15 is fixedly arranged on the lower surface of the bearing plate 12, the weight plate 10 and the partition plate 11 jointly form a first buffer area 1001, the partition plate 11 and the bearing plate 12 jointly form a second buffer area 1101, and the bearing plate 12 and the inner bottom wall of the outer cylinder 9 jointly form a waterproof area 1201;
the lateral wall of the straight tube 5 is symmetrically provided with a plurality of first liquid outlet holes 19 communicated with the first buffer area 1001 and a plurality of second liquid outlet holes communicated with the second buffer area 1101, the lateral wall of the outer tube 9 is provided with an exhaust port 14 communicated with the second buffer area 1101, the second buffer area 1101 is internally provided with an elastic membrane 13, when the elastic membrane 13 deforms, air in the second buffer area 1101 at the outer part can be exhausted through the exhaust port 14 or external air enters the second buffer area 1101 through the exhaust port 14, and therefore pressure change in the second buffer area 1101 is balanced.
Hydraulic oil is filled between the circular plate 201 and the sliding plate 6, electrorheological fluid is filled between the sliding plate 6 and the bottom wall of the straight cylinder 5, a power supply 16 is installed in the waterproof area 1201, a position switch 17 is arranged on the inner side wall of the straight cylinder 5, a trigger 18 is arranged on the side wall of the sliding plate 6, and the position of the position switch 17 corresponds to the position of the trigger 18.
When the bearing plate 1 vibrates slightly, the first spring 4 converts kinetic energy into elastic potential energy and stores the elastic potential energy, and the maximum static friction force is greater than the dynamic friction force, so that the circular plate 201 cannot move downwards under the action of the static friction force when the compression amount of the first spring 4 is small;
when the vibration amplitude of the bearing plate 1 is large, the elastic deformation amount of the first spring 4 is increased, the elastic force of the first spring 4 is increased, so that the circular plate 201 slides downwards against the maximum static friction force, at the moment, the circular plate 201 extrudes hydraulic oil to cause the hydraulic oil to flow into the first buffer area 1001 from the first liquid outlet 19 and push the counterweight plate 10 upwards, most of the kinetic energy of the bearing plate 1 during vibration is converted into the elastic potential energy of the first spring 4 and the gravitational potential energy of the counterweight plate 10, and a small part of the kinetic energy is converted into heat dissipation through friction, so that the first spring 4 is in a low fatigue loss period, the service life of the first spring 4 is prolonged, because the stiffness coefficient of the second spring 8 is large, the elastic deformation is not easy to occur, and when the vibration is of medium intensity, the sliding plate 6 cannot move downwards;
when the bearing plate 1 vibrates violently, the volume between the circular plate 201 and the sliding plate 6 is reduced rapidly, and the speed of the hydraulic oil discharged from the first liquid outlet 19 is not enough to counteract the change, so that the hydraulic oil can extrude the sliding plate 6, the sliding plate 6 overcomes the deformation force of the second spring 8 and slides downwards, the electrorheological fluid between the sliding plate 6 and the bottom wall of the straight cylinder 5 flows to the second buffer area 1101 through the second liquid outlet, so that the elastic membrane 13 deforms, and at the same time, the second spring 8 and the elastic membrane 13 can absorb part of energy, so as to further weaken the vibration of the bearing plate 1;
when the trigger 18 on the side wall of the sliding plate 6 is opposite to the position switch 17 on the inner side wall of the straight cylinder 5, the position switch 17 is triggered, so that a loop where the power supply 16, the upper capacitive plate 7 and the lower capacitive plate 15 are located is communicated, the upper capacitive plate 7 and the lower capacitive plate 15 jointly form a capacitor, the power supply 16 can quickly fill the capacitor, and because a uniform electric field can be generated between two polar plates of the capacitor, an excited uniform electric field can be generated between the upper capacitive plate 7 and the lower capacitive plate 15, so that electrorheological fluid is in the electric field, and when the sliding plate 6 slides downwards, the distance between the upper capacitive plate 7 and the lower capacitive plate 15 becomes smaller;
because of the capacitance of the parallel plate capacitor
Wherein k is an electrostatic force constant and a dielectric constant, S is a dead area, and pi is a circumferential rate;
the four parameters can be regarded as definite constants, and the capacitance C is only related to the change of the distance d;
and uniform electric field in the parallel plate capacitor
When the condenser is connected with power 16 all the time, voltage can not change, so when the distance between capacitor plate 7 and lower capacitor plate 15 reduces, field intensity increases, because the warm sagger phenomenon can appear in the electrorheological fluid, be in the electric field or when letting in electric current promptly, the viscosity of electrorheological fluid can increase along with electric field intensity or current strength's increase, consequently sliding plate 6 can receive the resistance of change when promoting the electrorheological fluid, and sliding plate 6 is close to the bottom of straight section of thick bamboo 5 more, the resistance is just bigger, make loading board 1 stable and quick stop vibrations.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (2)
1. A buffering method of a shock absorption frame of electromechanical equipment is characterized by comprising the following steps: the specific use method is as follows:
s1, weakening low-intensity vibration: when the bearing plate (1) generates micro vibration, the first spring (4) converts kinetic energy into elastic potential energy and stores the elastic potential energy, and the circular plate (201) is fixed;
s2, damping medium-intensity vibration: when the vibration amplitude of the bearing plate (1) is large, the bearing plate (1) presses the circular plate (201) downwards through the support column (2), so that hydraulic oil flows into the first buffer area (1001) from the first liquid outlet hole (19), the kinetic energy of the bearing plate (1) is converted into the potential energy of the hydraulic oil and the counterweight plate (10), and the sliding plate (6) is fixed;
s3, weakening high-intensity vibration: when the bearing plate (1) shakes violently, the hydraulic oil extrudes the sliding plate (6) to enable the sliding plate to move downwards, after the trigger piece (18) touches the position switch (17), the electrorheological fluid is located in a uniform electric field, the shearing force is increased, and most of kinetic energy of the bearing plate (1) is converted into internal energy of the electrorheological fluid;
the damping frame comprises a bearing plate (1), a supporting column (2) and a straight cylinder (5), wherein the upper end of the supporting column (2) is fixedly connected with the bearing plate (1), the lower end of the supporting column (2) is fixedly connected with a circular plate (201), the circular plate (201) is arranged in the straight cylinder (5) in a sealing and sliding mode, a sliding plate (6) is arranged in the straight cylinder (5) in a sealing and sliding mode, the sliding plate (6) is located below the circular plate (201) and is parallel to the circular plate (201), a fixing plate (3) is arranged at the upper end of the straight cylinder (5), a plurality of first springs (4) are connected between the fixing plate (3) and the circular plate (201), a plurality of second springs (8) are connected between the sliding plate (6) and the bottom wall of the straight cylinder (5), and an upper capacitor plate (7) is fixedly arranged in the sliding plate (6);
an outer cylinder (9) is fixedly sleeved outside the straight cylinder (5), a weight plate (10), a partition plate (11) and a bearing plate (12) are sequentially arranged between the outer cylinder (9) and the straight cylinder (5) from top to bottom in a sealing mode, the weight plate (10) is connected with the outer cylinder (9) and the side wall of the straight cylinder (5) in a sliding mode, a lower capacitor plate (15) is fixedly arranged on the lower surface of the bearing plate (12), the weight plate (10) and the partition plate (11) jointly form a first buffer area (1001), the partition plate (11) and the bearing plate (12) jointly form a second buffer area (1101), and the bearing plate (12) and the inner bottom wall of the outer cylinder (9) jointly form a waterproof area (1201);
a plurality of first liquid outlet holes (19) communicated with a first buffer area (1001) and second liquid outlet holes communicated with a second buffer area (1101) are symmetrically formed in the side wall of the straight barrel (5), an air outlet (14) communicated with the second buffer area (1101) is formed in the side wall of the outer barrel (9), and an elastic membrane (13) is arranged in the second buffer area (1101).
2. The method for buffering the shock absorption frame of the electromechanical device according to claim 1, wherein hydraulic oil is filled between the circular plate (201) and the sliding plate (6), electrorheological fluid is filled between the sliding plate (6) and the bottom wall of the straight cylinder (5), a power supply (16) is installed in the waterproof area (1201), a position switch (17) is arranged on the inner side wall of the straight cylinder (5), a trigger member (18) is arranged on the side wall of the sliding plate (6), and the position of the position switch (17) corresponds to the position of the trigger member (18).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010675382.3A CN111828534B (en) | 2020-07-14 | 2020-07-14 | Electromechanical equipment damping frame and damping method thereof |
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| CN202010675382.3A CN111828534B (en) | 2020-07-14 | 2020-07-14 | Electromechanical equipment damping frame and damping method thereof |
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| CN111828534A true CN111828534A (en) | 2020-10-27 |
| CN111828534B CN111828534B (en) | 2021-12-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115258414A (en) * | 2022-07-12 | 2022-11-01 | 无锡翔盛包装有限公司 | Material frame is used in motor assembly transportation |
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| CN115258414A (en) * | 2022-07-12 | 2022-11-01 | 无锡翔盛包装有限公司 | Material frame is used in motor assembly transportation |
| CN115258414B (en) * | 2022-07-12 | 2024-04-02 | 无锡翔盛包装有限公司 | Material frame for transporting motor assembly |
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| CN111828534B (en) | 2021-12-03 |
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