CN112065921A - Vibration damper, compressor and water chilling unit - Google Patents
Vibration damper, compressor and water chilling unit Download PDFInfo
- Publication number
- CN112065921A CN112065921A CN202011033666.9A CN202011033666A CN112065921A CN 112065921 A CN112065921 A CN 112065921A CN 202011033666 A CN202011033666 A CN 202011033666A CN 112065921 A CN112065921 A CN 112065921A
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- Prior art keywords
- vibration
- damping
- vibration damping
- connecting piece
- tray
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 11
- 238000013016 damping Methods 0.000 claims abstract description 150
- 239000002245 particle Substances 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 abstract description 14
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 239000006096 absorbing agent Substances 0.000 description 6
- 230000005284 excitation Effects 0.000 description 4
- 239000004636 vulcanized rubber Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
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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
- F16F15/06—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 metal springs
- F16F15/067—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 metal springs using only wound springs
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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
-
- 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
- F16F15/022—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 dampers and springs in combination
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a vibration damping device, a compressor and a water chilling unit, wherein the vibration damping device comprises: a housing having a damping cavity; the connecting piece is arranged on the shell in a penetrating mode and provided with a connecting end and a vibration damping end, the connecting end of the connecting piece is located outside the vibration damping cavity and used for being connected with a vibration source, and the vibration damping end of the connecting piece is located in the vibration damping cavity; the damping spring is arranged in the damping cavity, a first end of the damping spring is connected with the connecting end of the connecting piece, and a second end of the damping spring is connected with the inner wall of the shell; damping particles filled in the vibration damping cavity. The vibration damping device can fully dissipate and absorb the vibration energy of the vibration source through the mutual matching of the vibration damping spring and the damping particles, thereby improving the vibration damping effect.
Description
Technical Field
The invention relates to the technical field of water chilling units, in particular to a vibration damping device, a compressor and a water chilling unit.
Background
At present, the requirement of a water chiller on the vibration performance still presents a higher situation, a compressor is used as a vibration excitation source in the whole machine, and vibration reduction and absorption measures of the compressor always play a significant role in the vibration effect of the whole machine. Therefore, in order to improve the whole vibration effect of the whole machine, the economical efficiency and the realizability are considered at the same time.
The existing dynamic vibration absorber is divided into an active type and a passive type, the active type dynamic vibration absorber needs to integrate signal acquisition and feedback in a complete machine control system, analyze vibration frequency acquired by vibration, control the vibration absorber to generate reverse vibration to reduce vibration of a vibration source, and the scheme ensures that the complete machine controller has larger design workload; the traditional passive dynamic vibration absorber mainly depends on self weight, vibration is dissipated in a feedback mode through vulcanized rubber connected between the damping rod and the vibration absorber main body, the vulcanized rubber mainly depends on balance weight vibration reduction, and the vibration reduction effect is poor.
Disclosure of Invention
The invention discloses a vibration damping device, a compressor and a water chilling unit, and solves the problem that a traditional passive dynamic vibration absorber adopts vulcanized rubber for vibration damping and is poor in vibration damping effect.
According to an aspect of the present invention, there is disclosed a vibration damping device including: a housing having a damping cavity; the connecting piece is arranged on the shell in a penetrating mode and provided with a connecting end and a vibration damping end, the connecting end of the connecting piece is located outside the vibration damping cavity and used for being connected with a vibration source, and the vibration damping end of the connecting piece is located in the vibration damping cavity; the damping spring is arranged in the damping cavity, a first end of the damping spring is connected with the connecting end of the connecting piece, and a second end of the damping spring is connected with the inner wall of the shell; damping particles filled in the vibration damping cavity.
Further, the connector includes: the first end of the connecting rod is the connecting end of the connecting piece; the tray is connected to the second end of the connecting rod, the tray is the vibration reduction end of the connecting piece, and the tray is connected with the second end of the vibration reduction spring.
Further, the vibration reduction cavity is divided into two cavities by the tray, and the damping particles are filled in the two cavities respectively.
Further, the connecting rod is in threaded connection with the tray.
Further, a portion of the dampening particles are located on the tray.
Furthermore, a through hole is formed in the shell, the connecting piece penetrates through the through hole, and the connecting piece is in clearance fit with the through hole.
Further, the shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are mutually buckled to form the vibration reduction cavity.
Furthermore, the shell is also provided with filling holes for filling damping particles.
Further, the vibration damper is a mass block which can carry out counterweight vibration damping on the whole.
According to a second aspect of the present invention, a compressor is disclosed, comprising the above vibration damping device.
According to a third aspect of the invention, a water chilling unit is disclosed, comprising the compressor.
When the vibration damping device works, the vibration energy transmitted by the vibration source is transmitted to the vibration damping spring through the connecting piece, the vibration damping spring is forced to generate vibration deviating from the phase of vibration waves of the vibration source, so that the vibration of the vibration source is damped, and the vibration damping spring transmits part of vibration to the damping particles to activate the damping particles to move and damp the residual vibration energy of the vibration source. The vibration damping device can fully dissipate and absorb the vibration energy of the vibration source through the mutual matching of the vibration damping spring and the damping particles, thereby improving the vibration damping effect.
Drawings
Fig. 1 is a schematic structural view of a vibration damping device of an embodiment of the present invention;
FIG. 2 is an exploded view of a vibration damping device according to an embodiment of the present invention;
FIG. 3 is a perspective view of a vibration damping device of an embodiment of the present invention;
legend: 10. a housing; 11. a vibration damping cavity; 12. an upper housing; 121. a through hole; 122. filling the hole; 13. a lower housing; 20. a connecting member; 21. a connecting rod; 22. a tray; 30. a damping spring; 40. damping the particles.
Detailed Description
The present invention is further illustrated by the following examples, but is not limited to the details of the description.
As shown in fig. 1, the present invention discloses a vibration damping device, comprising a housing 10, a connecting member 20, a vibration damping spring 30 and damping particles 40, wherein the housing 10 has a vibration damping chamber 11; the connecting piece 20 is arranged on the shell 10 in a penetrating mode, the connecting piece 20 is provided with a connecting end and a vibration reduction end, the connecting end of the connecting piece 20 is located outside the vibration reduction cavity 11 and used for being connected with a vibration source, and the vibration reduction end of the connecting piece 20 is located in the vibration reduction cavity 11; the damping spring 30 is arranged in the damping cavity 11, a first end of the damping spring 30 is connected with the connecting end of the connecting piece 20, and a second end of the damping spring 30 is connected with the inner wall of the shell 10; the damping particles 40 are filled in the damping chamber 11. When the vibration damping device works, the vibration energy transmitted by the vibration source is transmitted to the vibration damping spring 30 through the connecting piece 20, the vibration damping spring 30 is forced to generate vibration deviating from the phase of the vibration wave of the vibration source, so that the vibration of the vibration source is damped, and the vibration damping spring 30 transmits partial vibration to the damping particles 40 to activate the damping particles 40 to move and damp the residual vibration energy of the vibration source. The vibration damping device of the invention can fully dissipate and absorb the vibration energy of the vibration source through the mutual matching of the vibration damping spring 30 and the damping particles 40, thereby improving the vibration damping effect.
As shown in fig. 2, in the above embodiment, the connecting member 20 includes the link 21 and the tray 22, and the first end of the link 21 is the connecting end of the connecting member 20; the tray 22 is connected to the second end of the link 21, the tray 22 is a damping end of the link 20, and the tray 22 is connected to the second end of the damping spring 30. The vibration damping device of the invention connects the vibration damping spring 30 with the vibration source by arranging the connecting rod 21 and the tray 22, thereby transmitting the vibration energy of the vibration source to the vibration damping spring 30, absorbing and offsetting the vibration damping spring 30, and then matching with the damping particles 40 for dissipation, thereby improving the vibration damping effect.
In the above embodiment, the tray 22 divides the damping chamber 11 into two chambers, and the damping particles 40 are filled in the two chambers, respectively. The tray 22 of the vibration damping device of the present invention not only can play a role of connecting with the vibration damping spring 30, but also has a role of dividing the vibration damping cavity 11 into two, so that the damping particles 40 can be dispersed into two cavities, and the vibration dissipation of the two stages of damping particles 40 is realized, thereby improving the vibration damping effect.
In the above embodiment, the link 21 is screwed to the tray 22, the link 21 and the vibration source are welded to each other, the damper spring 30 and the tray 22 are welded to each other, and the damper spring 30 and the housing 10 are welded to each other. According to the vibration damping device, the shell 10, the vibration damping spring 30, the tray 22, the connecting rod 21 and the vibration source are connected in sequence in a rigid connection mode, so that an integral structure is formed, the connection strength is improved, the service life of the vibration damping device is prolonged, the vibration damping spring 30 can automatically recover to an original state after being subjected to vibration excitation elastic deformation, the time difference of the reaction process can realize the phase deviation between the feedback vibration waveform of the vibration damping spring 30 and the vibration waveform of the excitation source, and the effect of counteracting the vibration of the excitation source can be achieved. When the vibration is conducted on the vibration damping spring 30, the whole vibration damping device plays a role of a damping rod, and generates disturbance on the damping particles 40 in the vibration damping cavity 11, so that the damping particles 40 dissipate part of the vibration, and the vibration damping effect is improved.
In the above embodiment, part of the damping particles 40 are located on the tray 22. The tray 22 of the vibration damping device of the present invention has not only a connection function with the vibration damping spring 30 but also a function of dividing the vibration damping chamber 11 into upper and lower chambers, so that a part of the damping particles 40 can be placed on the tray 22, and the damping particles 40 are more uniformly distributed in the whole vibration damping chamber 11, thereby improving the vibration damping effect.
In the above embodiment, the housing 10 is provided with the through hole 121, the link 21 of the connecting member 20 is inserted into the through hole 121, and the link 21 is in clearance fit with the through hole 121. The vibration damping device of the invention avoids the vibration deterioration caused by the collision between the connecting rod 21 and the shell 10 in the working process through the clearance fit between the connecting rod 21 and the through hole 121.
In the above embodiment, the housing 10 includes the upper housing 12 and the lower housing 13, and the upper housing 12 and the lower housing 13 are fastened to each other to form the vibration damping chamber 11. The vibration damping device of the present invention can be more conveniently installed by using the upper case 12 and the lower case 13.
In the above embodiment, the housing 10 further has a filling hole 122 for filling the damping particles 40. The vibration damping apparatus of the present invention can facilitate the filling of the damping particles 40 by providing the filling holes 122.
As shown in fig. 3, in the above embodiment, the vibration damping device is a mass that can perform counterweight vibration damping as a whole. The vibration damping device of the invention increases the quality of the whole vibration damping device because the shell 10 is thicker, on one hand, the vibration feedback quality of the spring can be effectively improved, and the feedback attenuation effect is increased; on the other hand, the effect of counterweight vibration reduction can be achieved due to the large weight.
According to a second embodiment of the invention, a compressor is also disclosed, comprising the vibration reduction device.
According to a third embodiment of the invention, the invention also discloses a water chilling unit which comprises the compressor.
The water chilling unit provided by the invention gradually weakens and dissipates the vibration generated by the vibration source through the combined use of the vibration feedback of the vibration damping device, the damping particles 40 and the balance weight, so that the compressor is used as a vibration source of the whole machine, the vibration can be transmitted to the measuring point as little as possible, and the vibration performance of the water chilling unit is improved.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes and modifications which are obvious to the technical scheme of the invention are covered by the protection scope of the invention.
Claims (11)
1. A vibration damping device, comprising:
a housing (10), said housing (10) having a damping chamber (11);
the connecting piece (20) penetrates through the shell (10), the connecting piece (20) is provided with a connecting end and a vibration damping end, the connecting end of the connecting piece (20) is located outside the vibration damping cavity (11) and used for being connected with a vibration source, and the vibration damping end of the connecting piece (20) is located in the vibration damping cavity (11);
the damping spring (30) is installed in the damping cavity (11), a first end of the damping spring (30) is connected with the connecting end of the connecting piece (20), and a second end of the damping spring (30) is connected with the inner wall of the shell (10);
damping particles (40), the damping particles (40) being filled in the vibration damping cavity (11).
2. Damping device according to claim 1, characterized in that the connection piece (20) comprises:
the first end of the connecting rod (21) is a connecting end of the connecting piece (20);
tray (22), tray (22) are connected on the second end of connecting rod (21), tray (22) are the damping end of connecting piece (20), tray (22) with the second end of damping spring (30) is connected.
3. The vibration damping device according to claim 2,
the tray (22) divides the vibration reduction cavity (11) into two cavities, and the damping particles (40) are filled in the two cavities respectively.
4. The vibration damping device according to claim 2,
the connecting rod (21) is in threaded connection with the tray (22).
5. The vibration damping device according to claim 3,
part of the damping particles (40) are located on the tray (22).
6. The vibration damping device according to claim 1,
the shell (10) is provided with a through hole (121), the connecting piece (20) penetrates through the through hole (121), and the connecting piece (20) is in clearance fit with the through hole (121).
7. The vibration damping device according to claim 1,
the shell (10) comprises an upper shell (12) and a lower shell (13), and the upper shell (12) and the lower shell (13) are buckled with each other to form the vibration reduction cavity (11).
8. The vibration damping device according to claim 1,
the shell (10) is also provided with a filling hole (122) for filling damping particles (40).
9. The vibration damping device according to claim 1,
the vibration damper is a mass block which can carry out counterweight vibration damping.
10. A compressor, characterized by comprising the vibration damping device according to any one of claims 1 to 9.
11. A chiller comprising the compressor of claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011033666.9A CN112065921A (en) | 2020-09-27 | 2020-09-27 | Vibration damper, compressor and water chilling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011033666.9A CN112065921A (en) | 2020-09-27 | 2020-09-27 | Vibration damper, compressor and water chilling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112065921A true CN112065921A (en) | 2020-12-11 |
Family
ID=73682861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011033666.9A Pending CN112065921A (en) | 2020-09-27 | 2020-09-27 | Vibration damper, compressor and water chilling unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112065921A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878525A (en) * | 2021-01-22 | 2021-06-01 | 厦门路桥工程设计院有限公司 | Self-resetting micro-particle spring damper |
| WO2022148350A1 (en) * | 2021-01-06 | 2022-07-14 | 青岛海尔电冰箱有限公司 | Compressor damping mechanism and refrigerator |
-
2020
- 2020-09-27 CN CN202011033666.9A patent/CN112065921A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022148350A1 (en) * | 2021-01-06 | 2022-07-14 | 青岛海尔电冰箱有限公司 | Compressor damping mechanism and refrigerator |
| CN112878525A (en) * | 2021-01-22 | 2021-06-01 | 厦门路桥工程设计院有限公司 | Self-resetting micro-particle spring damper |
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