CN110735875A - composite vibration damper - Google Patents
composite vibration damper Download PDFInfo
- Publication number
- CN110735875A CN110735875A CN201911017267.0A CN201911017267A CN110735875A CN 110735875 A CN110735875 A CN 110735875A CN 201911017267 A CN201911017267 A CN 201911017267A CN 110735875 A CN110735875 A CN 110735875A
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- China
- Prior art keywords
- vibration
- cover plate
- cavity
- damping
- block
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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
- F16F7/00—Vibration-dampers; Shock-absorbers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0044—Pulsation and noise damping means with vibration damping supports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/001—Noise damping
- F04B53/003—Noise damping by damping supports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
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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
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses composite vibration dampers, which relate to the technical field of vibration reduction and solve the technical problem that vibration generated by the operation of mechanical equipment in the prior art can cause a lot of hazards.
Description
Technical Field
The invention relates to the technical field of vibration reduction, in particular to an composite vibration reducer.
Background
The vibration generated by the operation of mechanical equipment such as a compressor, a fan, a water pump and the like can cause a lot of hazards, causes abnormal abrasion and fatigue failure of the equipment and reduces the service life and reliability of the mechanical equipment, secondly generates noise and influences the surrounding environment, and thirdly reduces the stealth performance of the mechanical equipment in special places, so the vibration reduction effect of vibration reduction installation of the mechanical equipment is particularly critical, and efficient vibration absorbers are provided to become a technical problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
Among the objects of the present invention is to provide a composite vibration damper, which solves the technical problem of the prior art that the vibration generated by the operation of mechanical equipment causes many hazards.
In order to achieve the purpose, the invention provides the following technical scheme:
the composite vibration absorber comprises a cavity, a cover plate and a vibration attenuation assembly, wherein a space for accommodating the vibration attenuation assembly is formed between the cavity and the cover plate, the cavity and a foundation are fixedly installed, and the vibration attenuation assembly is connected with vibration source equipment so as to consume and/or isolate vibration source energy of the vibration source equipment through the vibration attenuation assembly.
According to preferred embodiments, the vibration damping assembly comprises a vibration damping mass and a vibration damping spring, wherein the vibration damping mass is located below the cover plate, the vibration damping spring is located below the vibration damping mass, the vibration damping mass is connected with the vibration source device, and the vibration damping mass and the vibration damping spring are movable in a vertical direction to dissipate and/or isolate the vibration source energy of the vibration source device through elastic displacement of the vibration damping mass and the vibration damping spring in the vertical direction.
According to preferred embodiments, the damping block is provided with a through hole, the surface of the cover plate contacting with the damping block is provided with a boss matching with the through hole, so that the damping block is arranged below the cover plate by fitting the th through hole on the boss and can move in the vertical direction along the boss.
According to preferred embodiments, the displacement travel of the damper block in the vertical direction corresponds to the height of the boss.
According to preferred embodiments, posts are arranged on the vibration damping block, second through holes matched with the posts are arranged on the cover plate, and the posts penetrate through the cover plate through the second through holes to be connected with the vibration source equipment.
According to preferred embodiments, the center of the column is provided with a mounting hole, so that the vibration damping block is connected with the vibration source equipment through the mounting hole.
According to preferred embodiments, the vibration damping assembly further comprises a dynamic vibration absorber fixed to the bottom of the vibration mass to dissipate and/or isolate energy from the vibration source of the vibration source apparatus by a reactive force generated by the dynamic vibration absorber resonating with the vibration source apparatus.
According to preferred embodiments, the cavity, the cover plate and/or the damping mass are machined from a damping alloy material.
According to preferred embodiments, the top surface of the cavity is provided with a threaded hole, and the boss of the cover plate is provided with a second mounting hole, so that a space for accommodating the vibration damping assembly is formed between the cavity and the cover plate through the connection of the threaded hole and the second mounting hole.
According to preferred embodiments, the bottom surface of the cavity is provided with a second threaded hole, and the second threaded hole is located in the center of the bottom surface of the cavity, so that the cavity is fixedly installed with a foundation through the second threaded hole.
The composite shock absorber provided by the invention at least has the following beneficial technical effects:
according to the composite vibration absorber, the space for containing the vibration attenuation component is formed between the cavity and the cover plate, the cavity and the foundation are fixedly installed, and the vibration attenuation component is connected with the vibration source equipment, so that the energy of the vibration source equipment can be consumed and isolated from a vibration source transmission path, and the effect of efficient vibration attenuation is achieved; the composite vibration absorber of the invention can meet the requirements of vibration and impact environment in special places while achieving the vibration absorbing effect, and ensure the reliability and the service life of the vibration source equipment structure. Therefore, by using the composite vibration damper of the invention, a plurality of hazards caused by vibration generated by the operation of mechanical equipment in the prior art can be solved.
In addition, the preferred technical scheme of the invention can also produce the following technical effects:
according to the composite vibration absorber in the preferred technical scheme, the vibration source equipment is arranged on the vibration attenuation block, and the vibration source excitation can be greatly attenuated by utilizing the elastic displacement of the vibration attenuation block and the vibration attenuation spring in the vertical direction, so that the effect of efficient vibration attenuation is achieved.
According to the composite vibration absorber in the preferred technical scheme, the resonance principle of the dynamic vibration absorber and the vibration source equipment can be used for accurately attenuating the excitation of a certain narrow-frequency vibration source, and the step has an efficient vibration attenuation effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is an exploded view of preferred embodiments of the composite shock absorber of the present invention;
FIG. 2 is an assembled schematic view of preferred embodiments of the compound shock absorber of the present invention;
FIG. 3 is a front view of preferred embodiments of the compound shock absorber of the present invention;
FIG. 4 is a sectional view A-A of FIG. 3;
FIG. 5 is a schematic view of preferred embodiments of the chamber of the present invention;
FIG. 6 is a schematic view of preferred embodiments of the cover sheet of the present invention;
figure 7 is a schematic view of preferred embodiments of the vibration damping mass of the present invention.
In the figure, 1-cavity, 2-cover plate, 3-vibration reduction block, 4-vibration reduction spring, 5-dynamic vibration absorber, 6-bolt, 101- th threaded hole, 102-second threaded hole, 201-boss, 202-second through hole, 301- th through hole, 302-column, 2011-second mounting hole and 3021- th mounting hole.
Detailed Description
The technical solution of the present invention will be described in detail below to make the objects, technical solutions and advantages of the present invention clearer.
The composite vibration damper of the present embodiment will be described in detail with reference to fig. 1 to 7 of the specification.
The composite vibration damper of the embodiment comprises a cavity 1, a cover plate 2 and a vibration damping assembly, as shown in fig. 1. Preferably, a space for accommodating the vibration damping assembly is formed between the cavity 1 and the cover plate 2, the cavity 1 is fixedly mounted with the foundation, and the vibration damping assembly is connected with the vibration source equipment so as to dissipate and/or isolate the energy of the vibration source equipment through the vibration damping assembly.
In the composite vibration absorber of the embodiment, a space for accommodating the vibration attenuation component is formed between the cavity 1 and the cover plate 2, the cavity 1 and the foundation are fixedly installed, and the vibration attenuation component is connected with the vibration source equipment, so that the energy of the vibration source equipment can be consumed and isolated from a vibration source transmission path, and a high-efficiency vibration attenuation effect is achieved; the composite vibration absorber of the embodiment can meet the requirements of vibration and impact environments in special places while achieving the vibration absorbing effect, and ensures the reliability and the service life of the vibration source equipment structure. Therefore, by using the composite vibration absorber of the embodiment, a plurality of hazards caused by vibration generated by operation of mechanical equipment in the prior art can be solved.
According to preferred embodiments, the vibration damping assembly comprises a vibration damping block 3 and a vibration damping spring 4, as shown in fig. 1, preferably, the vibration damping block 3 is located below the cover plate 2, the vibration damping spring 4 is located below the vibration damping block 3, the vibration damping block 3 is connected with the vibration source device, and the vibration damping block 3 and the vibration damping spring 4 can move in the vertical direction to dissipate and/or isolate the vibration source energy of the vibration source device through the elastic displacement of the vibration damping block 3 and the vibration damping spring 4 in the vertical direction.
In the composite vibration absorber adopting the preferred technical scheme of the embodiment, the vibration source equipment is arranged on the vibration absorption block 3, and the vibration source excitation can be greatly attenuated by utilizing the elastic displacement of the vibration absorption block 3 and the vibration absorption spring 4 in the vertical direction, so that the effect of efficient vibration absorption is achieved.
According to preferred embodiments, the damping block 3 is provided with a th through hole 301 as shown in fig. 7, the surface of the cover plate 2 contacting the damping block 3 is provided with a boss 201 matching with the th through hole 301 as shown in fig. 1 or fig. 6, the damping block 3 is disposed under the cover plate 2 by fitting the th through hole 301 to the boss 201, and the damping block 3 is allowed to move in the vertical direction along the boss 201, and preferably, the displacement stroke of the damping block 3 in the vertical direction corresponds to the height of the boss 201.
According to preferred embodiments, the damper block 3 is provided with a post 302 as shown in FIG. 1 or 7. the cover plate 2 is provided with a second through hole 202 matching the post 302 as shown in FIG. 1 or 6. the post 302 is connected to the vibration source apparatus by passing the second through hole 202 through the cover plate 2. preferably, the post 302 is provided with a mounting hole 3021 in the center to connect the damper block 3 to the vibration source apparatus through a mounting hole 3021 as shown in FIG. 7. for example, the mounting hole 3021 of the damper block 3 is connected to the vibration source apparatus by bolts 6.
The damping block 3 and the damping spring 4 in the preferred technical scheme of the embodiment are assembled in the following way and generate elastic expansion displacement in the vertical direction to greatly attenuate the excitation of a vibration source:
according to the preferred technical scheme, the vibration reduction block 3 is arranged between the cavity 1 and the cover plate 2, the th through hole 301 in the edge of the vibration reduction block is matched with the boss 201 on the cover plate 2 for horizontal limiting installation, meanwhile, the height of the boss 201 is used for reserving the displacement stroke of the vibration reduction block 3 in the vertical direction, the cylinder 302 extending out of the vibration reduction block 3 penetrates through the second through hole 202 on the cover plate 2 and is fixed with a machine foot of vibration source equipment through the mounting hole 3021 on the cylinder 302, the vibration reduction spring 4 is packaged between the interior of the cavity 1 and the vibration reduction block 3 and is matched with the vibration reduction block 3 to generate elastic telescopic displacement in the vertical direction, and the vibration source excitation can be greatly attenuated through the elastic displacement of the vibration reduction block 3 and the vibration reduction spring 4 in the vertical direction, so that the effect of efficient vibration reduction.
According to preferred embodiments, the vibration damping assembly further comprises a dynamic vibration absorber 5, as shown in fig. 1 or 4. preferably, the dynamic vibration absorber 5 is fixed to the bottom of the vibration damping mass 3 to dissipate and/or isolate the energy of the vibration source apparatus by the reactive force generated by the resonance of the dynamic vibration absorber 5 and the vibration source apparatus.
The composite vibration absorber in the preferred technical scheme of this embodiment can perform precise attenuation for the excitation of a vibration source with a narrow frequency of by using the resonance principle of the dynamic vibration absorber 5 and the vibration source equipment, and further steps have an effect of efficient vibration attenuation.
The dynamic vibration absorber 5 of the preferred embodiment is assembled in the following manner and precisely attenuates the excitation of a certain narrow-frequency vibration source:
the dynamic vibration absorber 5 of the preferred technical scheme of this embodiment is fixed at the bottom of the vibration damping block 3, and the vibration source equipment is installed on the cylinder 302 of the vibration damping block 3, so that the dynamic vibration absorber 5 can resonate with the vibration source equipment, and the excitation of the vibration source is reduced by using the reaction force generated by the resonance of the dynamic vibration absorber 5 and the vibration source equipment, thereby realizing precise attenuation aiming at the excitation of a certain narrow-frequency vibration source and achieving the effect of efficient vibration damping.
According to preferred embodiments, the cavity 1, the cover plate 2 and/or the vibration damping block 3 are formed by machining damping alloy materials, the cavity 1, the cover plate 2 and/or the vibration damping block 3 in the preferred technical scheme of the embodiment are formed by machining the damping alloy materials, and the damping material can be used for further steps to enhance the vibration damping effect of the composite vibration damper, so that the vibration damping effect of the composite vibration damper is improved to a better level.
According to preferred embodiments, the top surface of the cavity 1 is provided with a threaded hole 101, as shown in fig. 5, the boss 201 of the cover plate 2 is provided with a second mounting hole 2011, as shown in fig. 6, the connection between the cavity 1 and the cover plate 2 through the threaded hole 101 and the second mounting hole 2011 forms a space for accommodating a damping assembly, and preferably, the threaded hole 101 and the second mounting hole 2011 are connected through a bolt 6.
According to preferred embodiments, the bottom surface of the cavity 1 is provided with a second threaded hole 102, and the second threaded hole 102 is located at the center of the bottom surface of the cavity 1, so that the cavity 1 is fixedly installed with the foundation through the second threaded hole 102, as shown in fig. 5.
Fig. 2 shows an assembly schematic diagram of preferred embodiments of the composite damper, according to the composite damper of the preferred technical scheme of the embodiment, vibration source equipment is installed on a vibration damping block 3, vibration source excitation can be greatly damped by utilizing elastic displacement of the vibration damping block 3 and a vibration damping spring 4 in the vertical direction, meanwhile, narrow-frequency vibration excitation which is difficult to process is subjected to -step absorption by utilizing a dynamic vibration absorber 5 installed at the bottom of the vibration damping block 3 and a vibration source equipment resonance principle, so that a high-efficiency vibration damping effect can be achieved, an elastic displacement space of a vibration damping component in the vertical direction is reserved by utilizing the matching of a boss 201 of a cavity 1 and a cover plate 2 and limiting installation, and meanwhile, a second threaded hole 102 is formed in the bottom of the cavity 1 and firmly installed with a foundation, so that the composite damper of the preferred technical scheme of the embodiment can be used for compressors, fans, water pumps and the like, and can not only achieve the high-efficiency vibration damping effect.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
- The composite shock absorber is characterized by comprising a cavity (1), a cover plate (2) and a shock absorption assembly, wherein a space for containing the shock absorption assembly is formed between the cavity (1) and the cover plate (2), the cavity (1) is fixedly installed with a foundation, and the shock absorption assembly is connected with a shock source device so as to consume and/or isolate the shock source energy of the shock source device through the shock absorption assembly.
- 2. Compound shock absorber according to claim 1, characterized in that the damping assembly comprises a damping mass (3) and a damping spring (4), wherein,the vibration reduction block (3) is located below the cover plate (2), the vibration reduction spring (4) is located below the vibration reduction block (3), the vibration reduction block (3) is connected with the vibration source equipment, and the vibration reduction block (3) and the vibration reduction spring (4) can move in the vertical direction so as to consume and/or isolate vibration source energy of the vibration source equipment through elastic displacement of the vibration reduction block (3) and the vibration reduction spring (4) in the vertical direction.
- 3. A compound damper according to claim 2, characterized in that the damping mass (3) is provided with th through holes (301), the surface of the cover plate (2) contacting the damping mass (3) is provided with bosses (201) matching the th through holes (301), so that the damping mass (3) is disposed below the cover plate (2) by fitting the th through holes (301) on the bosses (201) and the damping mass (3) can move in the vertical direction along the bosses (201).
- 4. A compound damper according to claim 3, characterized in that the displacement travel of the damper mass (3) in the vertical direction corresponds to the height of the boss (201).
- 5. The compound damper according to claim 2, characterized in that columns (302) are provided on the damper block (3), a second through hole (202) matching with the columns (302) is provided on the cover plate (2), and the columns (302) penetrate the cover plate (2) through the second through hole (202) and are connected with the vibration source equipment.
- 6. The compound damper as claimed in claim 5, wherein the cylinder (302) is provided with a mounting hole (3021) at the center so that the damper block (3) is connected to the vibration source apparatus through the mounting hole (3021) .
- 7. The compound damper according to claim 2, characterized in that the damping assembly further comprises a dynamic vibration absorber (5), the dynamic vibration absorber (5) being fixed to the bottom of the damper block (3) to dissipate and/or isolate the energy of the vibration source apparatus by the reaction force generated by the resonance of the dynamic vibration absorber (5) and the vibration source apparatus.
- 8. A composite vibration absorber according to claim 2, wherein the cavity (1), the cover plate (2) and/or the damping mass (3) are machined from a damping alloy material.
- 9. The compound vibration absorber as claimed in claim 1, wherein the top surface of the cavity (1) is provided with th threaded holes (101), and the boss (201) of the cover plate (2) is provided with second mounting holes (2011), so that a space for accommodating the vibration damping assembly is formed between the cavity (1) and the cover plate (2) through the connection of the th threaded holes (101) and the second mounting holes (2011).
- 10. The compound vibration absorber as claimed in claim 1, wherein the bottom surface of the cavity (1) is provided with a second threaded hole (102), and the second threaded hole (102) is located at the center of the bottom surface of the cavity (1) so that the cavity (1) is fixedly installed with a foundation through the second threaded hole (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911017267.0A CN110735875A (en) | 2019-10-24 | 2019-10-24 | composite vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911017267.0A CN110735875A (en) | 2019-10-24 | 2019-10-24 | composite vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110735875A true CN110735875A (en) | 2020-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911017267.0A Pending CN110735875A (en) | 2019-10-24 | 2019-10-24 | composite vibration damper |
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| CN (1) | CN110735875A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114473394A (en) * | 2022-03-15 | 2022-05-13 | 芜湖大捷离合器有限公司 | Machining process of torsion-limiting shock absorber |
-
2019
- 2019-10-24 CN CN201911017267.0A patent/CN110735875A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114473394A (en) * | 2022-03-15 | 2022-05-13 | 芜湖大捷离合器有限公司 | Machining process of torsion-limiting shock absorber |
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