CN111765204A - Suspension type silica gel self-adaptive frequency modulation vibration absorption device - Google Patents
Suspension type silica gel self-adaptive frequency modulation vibration absorption device Download PDFInfo
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- CN111765204A CN111765204A CN202010405647.8A CN202010405647A CN111765204A CN 111765204 A CN111765204 A CN 111765204A CN 202010405647 A CN202010405647 A CN 202010405647A CN 111765204 A CN111765204 A CN 111765204A
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- silica gel
- gel column
- sliding table
- self
- vibration absorption
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a suspension type silica gel self-adaptive frequency modulation vibration absorption device, which comprises a stepping motor, a silica gel column, a transmission lead screw, a guide rail, a hinged sliding table, a motor support and an external frame, wherein the stepping motor is arranged on the outer frame; the external frame is connected with the target equipment through the base; the stepping motor is fixed with the external frame through a motor bracket, and the transmission screw rod and the guide rail are symmetrical relative to the motor; the silica gel column is hinged on the sliding table through the clamp and then connected with the transmission screw rod, and the sliding table is symmetrically arranged relative to the motor. Because the silica gel material has the characteristics of soft elasticity and variable span frequency conversion of the suspended silica gel column, the vibration absorption device can realize the low-frequency modulation task; meanwhile, a stepping motor inside the vibration absorber can pick up a sensor signal through a single chip microcomputer to control, and finally self-adaptive frequency modulation vibration absorption is achieved. The invention uses the stepping motor for transmission, achieves the purpose of frequency modulation by changing the suspension span of the silica gel column, and has the characteristics of high frequency modulation precision, quick response and good stability.
Description
Technical Field
The invention relates to the field of vibration reduction control, in particular to a suspension type silicone gel self-adaptive vibration absorption device.
Background
In actual production, the vibration problem generally exists, not only can produce the noise, still can damage mechanical equipment, influences its life and production efficiency. Aiming at the problem of mechanical vibration, the vibration absorber is a good vibration reduction means, when the natural frequency of the vibration absorber is consistent with the forced vibration frequency of the equipment, resonance occurs, and at the moment, the vibration absorber can absorb the vibration energy of the mechanical equipment through self vibration so as to reduce the vibration amplitude of the mechanical equipment, thereby playing a role in absorbing vibration. The suspended vibration absorption device can adjust the natural frequency of the silica gel column by adjusting the suspension span of the silica gel column through the stepping motor; meanwhile, the vibration absorption device can be externally connected with a single chip microcomputer, and the self-adaptive adjustment of the natural frequency of the silica gel column is realized by receiving a sensor signal to perform frequency modulation control. Compared with the traditional vibration absorption device, the vibration absorption device has the advantages of high frequency modulation precision, fast response and good stability.
Disclosure of Invention
The invention aims to provide a suspension type silica gel self-adaptive frequency modulation vibration absorption device, which aims at low-frequency-band vibration and realizes the vibration absorption effect by intelligently adjusting the suspension span of a silica gel column arranged in the device.
The invention adopts the following technical scheme:
a suspension type silica gel self-adaptive frequency modulation vibration absorption device mainly comprises a silica gel column, a stepping motor, a lead screw, a sliding table, a motor bracket and an external frame; two ends of the silica gel column are hinged and supported on the sliding table through a clamp; the sliding table is connected with a screw rod, two guide rails penetrate through the sliding table, and two ends of the screw rod are connected with the side brackets; the stepping motor is fixed with the upper bracket through the motor bracket; the stepping motor, the lead screw, the guide rail and the silica gel column are symmetrically arranged and placed around a neutral plane of the vibration absorption device; the external frame is connected with the target vibration absorption device through the base and plays a role in fixing and protecting the internal structure.
Furthermore, the stepping motor is hollow, an external driving lead screw is adopted, and the stepping motor is connected with the lead screw through a bolt.
Furthermore, the left sliding table and the right sliding table are reversely arranged according to the direction of the internal thread, and when the stepping motor rotates, the structure can realize simultaneous opposite or reverse movement.
Furthermore, the sliding table is connected with the lead screw through a threaded hole in the center, is downwards connected with the silica gel column and plays a role in hinging, supporting and suspending the silica gel column.
Further, the sliding table is driven by the lead screw, and the structure can change the suspension span of the silica gel column through movement.
Furthermore, the sliding table provided by the invention is vertically and symmetrically penetrated through two guide rails for positioning and guiding about the central hole, and the guide rails prevent the sliding table from rotating around the axial direction of the screw rod in the moving process.
Furthermore, the outer frame and the base of the vibration absorber are both made of light aluminum alloy materials.
Different from the traditional vibration absorption device, the internal elastic element of the vibration absorption device disclosed by the invention is made of a silicone gel material, so that low-frequency vibration absorption can be realized; the silicon gel column of the vibration absorption device adopts a suspension design, and the natural frequency of the vibration absorption device can be adjusted by adjusting the suspension span; the vibration absorption device adopts a stepping motor and a proper transmission system to receive a sensor signal so as to realize a self-adaptive frequency modulation function. The symmetrical suspension type silica gel self-adaptive frequency modulation vibration absorption device realizes self-adaptive frequency modulation vibration absorption and has the characteristics of high frequency modulation precision, quick response and good stability.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a general schematic diagram of a suspension type silicone gel adaptive frequency modulation vibration absorber according to the present invention;
FIG. 2 is a schematic view of a stepper motor drive system according to the present invention;
FIG. 3 is a schematic view of a silica gel column according to the present invention;
FIG. 4 is a schematic overall framework of the present invention;
labeled as: 1-upper support, 2-stepping motor, 3-sliding table I, 4-silica gel column, 5-guide rail I, 6-screw I, 7-motor support I, 8-base, 9-screw II, 10-sliding table II, 11-guide rail II, 12-motor support II, 13-side support I, 14-lower support and 15-side support II.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings:
as shown in fig. 1 to 4, the suspension type silica gel adaptive frequency modulation vibration absorption device mainly comprises a stepping motor (2), a lead screw I (6), a lead screw II (9), a guide rail I (5), a guide rail II (11), a sliding table I (3), a sliding table II (10), a silica gel column (4), a base (8), a motor bracket I (7), an upper bracket (1), a motor bracket II (12), a lower bracket (14), a side bracket I (13) and a side bracket II (15). The stepping motor (2) is fixed on the upper bracket (1) through a motor bracket I (7) and a motor bracket II (12), and two ends of the stepping motor are connected with a lead screw I (6) and a lead screw II (9) which are equal in length through threads; the sliding table I (3) and the sliding table II (10) are symmetrically arranged on the screw rod I (6) and the screw rod II (9) relative to the motor; the guide rail I (5) and the guide rail II (11) penetrate through the sliding table I (3) and the sliding table II (10), and the two ends of the guide rail are fixed on the side bracket I (13) and the side bracket II (15); two ends of the silica gel column are respectively hinged on the sliding table I (3) and the sliding table II (10) through clamps; the upper bracket (1), the lower bracket (14), the side bracket I (13) and the side bracket II (15) form an external frame of the vibration absorbing device, and play a role in supporting, fixing and protecting the internal structure.
The change relation of the natural frequency of the silica gel column along with the suspension span at two ends is fitted through the results of experiments and finite elements, and finally a quadratic function relation is presented.
When the vibration absorption device is used, the relation between the rotation angle of the motor and the moving displacement of the sliding table is obtained through the lead of the lead screw. And establishing the relation between the rotation angle of the stepping motor and the vibration absorption frequency through the relation between the natural frequency and the span of the fitted silica gel column. The stepping motor rotates 360 degrees, and the sliding table for hinging and suspending the silica gel column only moves one screw pitch of the lead screw. Therefore, the frequency of the silica gel column can be modulated by the rotation angle of the stepping motor.
According to the suspension type silica gel column self-adaptive frequency modulation vibration absorption device provided by the invention, the internal elastic element is made of silica gel material, and has lower inherent frequency due to the special soft and elastic characteristic, so that the suspension type silica gel column self-adaptive frequency modulation vibration absorption device is a good low-frequency vibration absorption material; the vibration absorption device adopts a suspended silica gel column, and the natural frequency of the vibration absorption device can be adjusted by adjusting the suspension span; the vibration absorption device adopts the stepping motor and the transmission system, and can quickly and accurately control the suspension span of the silica gel column to realize the frequency modulation function; the frequency signal collected by the sensor is input into the STM32 singlechip, and then the singlechip outputs a corresponding signal to the stepping motor, thereby realizing the self-adaptive frequency-modulation vibration absorption. The suspension type silica gel column self-adaptive frequency modulation vibration absorption device has the characteristics of high frequency modulation precision, quick response and good stability.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (8)
1. A suspension type silica gel column self-adaptive frequency modulation vibration absorption device is characterized in that: comprises a silica gel column, a stepping motor, a screw rod, a sliding table, a motor bracket and an external frame; two ends of the silica gel column are hinged and supported on the sliding table through a clamp; the sliding table is connected with a screw rod, two guide rails penetrate through the sliding table, and two ends of the screw rod are connected with the side brackets; the stepping motor is fixed with the upper bracket through the motor bracket; the stepping motor, the lead screw, the guide rail and the silica gel column are symmetrically arranged and placed around a neutral plane of the vibration absorption device; the external frame is connected with the target vibration absorption equipment through the base and plays a role in fixing and protecting the internal structure; the soft elastic characteristic of the silicon gel material has low natural frequency and is a low-frequency vibration absorption material; the vibration absorption device adopts a suspended silica gel column, and the natural frequency of the vibration absorption device is adjusted by adjusting the suspended span.
2. The self-adaptive frequency-modulation vibration-absorbing device of the suspended silica gel column of claim 1, wherein: a hollow stepping motor is adopted, and the lead screw is an external driving lead screw and is connected with the stepping motor through threaded holes at two ends.
3. The self-adaptive frequency-modulation vibration-absorbing device of the suspended silica gel column of claim 1, wherein: the slip table has the screw hole with lead screw thread complex, and controls two slip tables and place according to the reverse installation of inside screw thread direction.
4. The self-adaptive frequency-modulation vibration-absorbing device of the suspended silica gel column of claim 1, wherein: the sliding table is connected with the lead screw through a threaded hole in the center, and the sliding table is downwards connected with the silica gel column.
5. The self-adaptive frequency-modulation vibration-absorbing device of the suspended silica gel column of claim 1, wherein: the sliding table rotates through a lead screw, and the adjustment of the suspension span of the silica gel column is realized through relative sliding.
6. The self-adaptive frequency-modulation vibration-absorbing device of the suspended silica gel column of claim 1, wherein: the sliding table is vertically and symmetrically arranged on the center hole and penetrates through the two guide rails for positioning and guiding.
7. The self-adaptive frequency-modulation vibration-absorbing device of the suspended silica gel column of claim 1, wherein: the integral frame of the vibration absorber is made of aluminum alloy.
8. The self-adaptive frequency-modulation vibration-absorbing device of the suspended silica gel column of claim 1, wherein: the step motor is matched with a transmission system, so that the suspension span of the silica gel column can be controlled to realize the frequency modulation function; the frequency signal collected by the sensor is input into the STM32 singlechip, and then the singlechip outputs a corresponding signal to the stepping motor, thereby realizing the self-adaptive frequency-modulation vibration absorption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010405647.8A CN111765204A (en) | 2020-05-14 | 2020-05-14 | Suspension type silica gel self-adaptive frequency modulation vibration absorption device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010405647.8A CN111765204A (en) | 2020-05-14 | 2020-05-14 | Suspension type silica gel self-adaptive frequency modulation vibration absorption device |
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| CN111765204A true CN111765204A (en) | 2020-10-13 |
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| CN202010405647.8A Pending CN111765204A (en) | 2020-05-14 | 2020-05-14 | Suspension type silica gel self-adaptive frequency modulation vibration absorption device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431896A (en) * | 2020-10-28 | 2021-03-02 | 北京工业大学 | Symmetrical cantilever type self-adaptive frequency modulation metal silica gel vibration absorption device |
| CN113035028A (en) * | 2021-03-25 | 2021-06-25 | 合肥磐石自动化科技有限公司 | Parabola demonstration device based on parabola principle |
| CN117090810A (en) * | 2023-10-19 | 2023-11-21 | 杭州顿力电器有限公司 | Frequency modulation and vibration prevention device for auxiliary fan mesh enclosure and use method of frequency modulation and vibration prevention device |
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| CN105736620A (en) * | 2014-12-10 | 2016-07-06 | 中国飞机强度研究所 | Piezoelectric tuned mass damper |
| CN105927703A (en) * | 2016-06-08 | 2016-09-07 | 中国船舶重工集团公司第七二五研究所 | Power vibrator absorber with springs and semicircular weight stacks |
| CN207278757U (en) * | 2017-10-11 | 2018-04-27 | 北京市劳动保护科学研究所 | The continuously adjustable bump leveller of frequency |
| CN207634936U (en) * | 2017-12-19 | 2018-07-20 | 河北德蚨容纺织服饰制造有限公司 | A kind of textile machine support device |
| CN108988684A (en) * | 2018-07-16 | 2018-12-11 | 哈尔滨工程大学 | A kind of absorbing and vibrational energy acquire integrated apparatus |
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| CN105736620A (en) * | 2014-12-10 | 2016-07-06 | 中国飞机强度研究所 | Piezoelectric tuned mass damper |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431896A (en) * | 2020-10-28 | 2021-03-02 | 北京工业大学 | Symmetrical cantilever type self-adaptive frequency modulation metal silica gel vibration absorption device |
| CN113035028A (en) * | 2021-03-25 | 2021-06-25 | 合肥磐石自动化科技有限公司 | Parabola demonstration device based on parabola principle |
| CN117090810A (en) * | 2023-10-19 | 2023-11-21 | 杭州顿力电器有限公司 | Frequency modulation and vibration prevention device for auxiliary fan mesh enclosure and use method of frequency modulation and vibration prevention device |
| CN117090810B (en) * | 2023-10-19 | 2024-01-26 | 杭州顿力电器有限公司 | Frequency modulation and vibration prevention device for auxiliary fan mesh enclosure and use method of frequency modulation and vibration prevention device |
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Application publication date: 20201013 |