CN114087166A - Noise reduction device of vacuum pump - Google Patents
Noise reduction device of vacuum pump Download PDFInfo
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- CN114087166A CN114087166A CN202111397443.5A CN202111397443A CN114087166A CN 114087166 A CN114087166 A CN 114087166A CN 202111397443 A CN202111397443 A CN 202111397443A CN 114087166 A CN114087166 A CN 114087166A
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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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
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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
- F04B39/0083—Pulsation and noise damping means using blow off silencers
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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
- F04B39/14—Provisions for readily assembling or disassembling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention discloses a vacuum pump noise reduction device, and relates to the technical field of vacuum pump devices. The vacuum pump comprises a base for mounting a vacuum pump, wherein opposite side plates are arranged on the upper surface of the base, the tops of the two side plates are connected with top plates, and the two end parts of the two side plates are respectively connected with end plates; the top plate, the side plates and the end plates are all metal plates with inner and outer sides coated with sound attenuation materials; rectangular openings are formed in the side plates, and ventilation and sound absorption plates are installed on the rectangular openings in a matched mode. According to the invention, the cover body consisting of the side plate, the top plate, the end plate and the ventilation and sound-absorbing plate is arranged on the base for mounting the vacuum pump, so that the noise is isolated, and the noise generated by the vacuum pump in the use process and the environmental pollution are avoided; meanwhile, the invention has simple structure and convenient installation.
Description
Technical Field
The invention belongs to the technical field of vacuum pump devices, and particularly relates to a vacuum pump noise reduction device.
Background
The vacuum pump refers to a device or equipment for obtaining vacuum by pumping a pumped container by using a mechanical, physical, chemical or physicochemical method. In general, a vacuum pump is a device for improving, generating and maintaining a vacuum in a certain closed space by various methods. Vacuum pumps can be basically classified into two types, i.e., a gas trap pump and a gas transfer pump, according to the operating principle of the vacuum pump. It is widely used in metallurgy, chemical industry, food, electronic coating and other industries.
In the use process of the vacuum pump, the noise of the vacuum pump mainly comes from the motor and the pump body, the noise is very loud, the environment pollution is easily caused, and field workers are influenced by the noise for a long time to cause various irreversible injuries.
Disclosure of Invention
The invention aims to provide a vacuum pump noise reduction device, which is characterized in that a cover body consisting of a side plate, a top plate, an end plate and a ventilation and noise reduction plate is arranged on a base for mounting a vacuum pump, so that the noise is isolated, and the problems of great noise and easy environmental pollution in the use process of the conventional vacuum pump are solved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a vacuum pump noise reduction device which comprises a base used for mounting a vacuum pump, wherein opposite side plates are arranged on the upper surface of the base, the tops of the two side plates are connected with a top plate, and two end parts of the two side plates are respectively connected with an end plate; the top plate, the side plates and the end plates are all metal plates with inner and outer sides coated with sound attenuation materials;
rectangular openings are formed in the side plates, and ventilation and noise reduction plates are arranged on the rectangular openings in a matched mode; the ventilation and noise reduction plate comprises a rectangular base plate attached to the outer side face of one side plate, a first plate is arranged at one end of the inner side wall of the rectangular base plate, the side face of the first plate is connected with a corrugated section, one end of the corrugated section is fixed on the inner side wall of the rectangular base plate, and the end part of the corrugated section is connected with a second plate;
the first plate and the second plate have the same structure; a T-shaped sliding strip is arranged on the inner side wall of the second plate along the length direction of the second plate, and a T-shaped sliding groove matched with the T-shaped sliding strip is formed in the inner side wall of the rectangular substrate; the first plate and the second plate both comprise a rectangular plate body, and clamping plates which are abutted against the inner side wall of the side plate are welded on the upper side and the lower side of the rectangular plate body and one end of the rectangular plate body far away from the corrugated section; the rectangular plate body is provided with a first through hole, and the rectangular substrate is provided with a second through hole matched with the first through hole.
As a preferred technical scheme of the invention, a convex block is arranged on the outer side wall of the first plate, a rectangular hole for the convex block to pass through is formed in the rectangular substrate, a rectangular control plate is arranged at the top of the convex block, pipe bodies are respectively arranged at two ends of the rectangular control plate in a penetrating manner, a first support ring is arranged on the inner wall of each pipe body, the first support ring is telescopically connected with a friction block through a spring A, an inverted rectangular cylinder is connected to the top of each pipe body, and a traction rope is connected between the inner top side surface of the rectangular cylinder and the friction block; two opposite outer side walls of the rectangular cylinder are respectively communicated with an outer sleeve, and an inner sleeve is sleeved in the outer sleeve; the connecting rod I is connected between the rectangular cylinders, the inner sleeves are connected with the operating rod, the inner top side faces of the inner sleeves are connected with pull rods, and the end portions of the pull rods are connected with lantern rings which are sleeved on the traction ropes.
As a preferred technical scheme of the invention, a second support ring is arranged on the inner side wall of the outer sleeve, and a spring B is connected between the second support ring and the inner sleeve; and the outer side wall of the rectangular substrate positioned at two sides of the rectangular hole is provided with a resistance plate matched with the friction block, and the resistance plate is provided with a rough friction surface.
As a preferred technical scheme of the invention, the first through hole and the second through hole have the same structure and respectively comprise a first pore channel vertical to the side plate and a second pore channel forming an included angle a with the side plate; the two first pore channels are communicated, and the two second pore channels are parallel or form an included angle of 2 a.
As a preferred technical scheme of the invention, the inner side walls of the first through hole and the second through hole are both sprayed with sound attenuation material particles, and the value range of a is 15-30 degrees.
As a preferred technical scheme of the invention, the base comprises a bottom plate body, and two ends of the bottom plate body are respectively provided with a flanging; mounting side walls are respectively arranged on two sides of the upper surface of the bottom plate body, and fixing nails I are arranged on the mounting side walls; the side surfaces of the bottoms of the two ends of the side plate are respectively provided with a first convex block, the tops of the two ends of the side plate are provided with a second convex block, the tops of the second convex blocks are provided with notches, and the edges of the two ends of the side plate are provided with third fixing nails for installing end plates.
As a preferable technical solution of the present invention, the end plate includes an "n" type groove plate, an open end of the "n" type groove plate is provided with a shielding plate shielding end portions of the two side plates, both edge sides of an inner side wall of the shielding plate are provided with abutting sides abutting against inner walls of the two side plates, and a bottom end of the shielding plate is provided with a supporting plate abutting against an upper surface of the bottom plate body.
As a preferred technical scheme of the present invention, two ends of the "n" -type groove plate are provided with a screw rod in a penetrating manner, and two sides of the "n" -type groove plate are respectively provided with a threaded hole in threaded connection with the screw rod and a through hole in movable connection with the screw rod in a penetrating manner; the threaded hole and the through hole are in concentric structures; and threaded blind holes matched with the screw rods are respectively formed at two ends of the top plate.
As a preferable technical scheme of the invention, two edge sides of the top plate are provided with second fixing nails, two edge sides of the bottom side surface of the top plate are provided with abutting edges abutting against the inner walls of the two side plates, and the outer side wall of each abutting edge is provided with a rubber buffer layer.
The invention has the following beneficial effects:
according to the invention, the cover body consisting of the side plate, the top plate, the end plate and the ventilation and sound-absorbing plate is arranged on the base for mounting the vacuum pump, so that the noise is isolated, and the noise generated by the vacuum pump in the use process and the environmental pollution are avoided; meanwhile, the invention has simple structure and convenient installation.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a noise reduction device according to the present invention.
Fig. 2 is a schematic view of a part of the noise reduction device of the present invention.
Fig. 3 is a first structural diagram of the ventilation silencer structure of the present invention.
Fig. 4 is a schematic diagram of a structure of a ventilation noise damper of the present invention.
Fig. 5 is a front view of fig. 4.
Fig. 6 is a cross-sectional view T taken along line A-A in fig. 5.
Fig. 7 is a partial enlarged view of fig. 6 at B.
Fig. 8 is a first schematic view of an end plate of the present invention.
Fig. 9 is a second schematic view of an end plate of the present invention.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
Referring to fig. 1 to 2, the present invention is a vacuum pump noise reduction device, including a base 1 for mounting a vacuum pump, wherein the upper surface of the base 1 is provided with opposite side plates 2, the tops of the two side plates 2 are connected with a top plate 5, and two end portions of the two side plates 2 are respectively connected with end plates 4; the top plate 5, the side plates 2 and the end plates 4 are all metal plates coated with sound attenuation materials on the inner side and the outer side;
as shown in fig. 2, 4 and 5, a rectangular opening 21 is formed in the side plate 2, and the ventilation and sound-absorbing plate 3 is fittingly mounted on the rectangular opening 21; the ventilation and noise reduction plate 3 comprises a rectangular base plate 30 attached to the outer side surface of one side plate 2, a first plate 31 is arranged at one end of the inner side wall of the rectangular base plate 30, a corrugated section 32 with one end fixed on the inner side wall of the rectangular base plate 30 is connected to the side surface of the first plate 31, and a second plate 33 is connected to the end part of the corrugated section 32;
the first plate 31 and the second plate 33 have the same structure; a T-shaped sliding strip is arranged on the inner side wall of the second plate 33 along the length direction of the second plate, and a T-shaped sliding groove 331 matched with the T-shaped sliding strip is arranged on the inner side wall of the rectangular substrate 30; the first plate 31 and the second plate 33 both comprise a rectangular plate body 310, and clamping plates 311 which are abutted against the inner side wall of the side plate 2 are welded on the upper side and the lower side of the rectangular plate body 310 and one end far away from the corrugated section 32; the rectangular plate 310 is provided with a first through hole 312, and the rectangular substrate 30 is provided with a second through hole 301 matched with the first through hole 312. Through the arrangement of the corrugated section 32, the T-shaped sliding groove 331 and the T-shaped sliding strip, the second plate 33 can be conveniently controlled to slide towards the direction away from the first plate 31, and therefore the ventilation and sound-absorption plate 3 can be conveniently mounted and dismounted.
As shown in fig. 3 and 6, a bump 313 is arranged on the outer side wall of the first plate 31, a rectangular hole 302 for the bump 313 to pass through is arranged on the rectangular substrate 30, a rectangular control plate 314 is arranged on the top of the bump 313, a pipe body 315 is respectively arranged at two ends of the rectangular control plate 314 in a penetrating manner, a first support ring 3151 is arranged on the inner wall of the pipe body 315, the first support ring 3151 is telescopically connected with a friction block 3153 through a spring a3152, an inverted rectangular cylinder 3154 is connected to the top of the pipe body 315, and a traction rope 3155 is connected between the inner top side surface of the rectangular cylinder 3154 and the friction block 3153; two opposite outer side walls of the rectangular cylinder 3154 are respectively communicated with an outer sleeve 316, and an inner sleeve 317 is sleeved in the outer sleeve 316; a first connecting rod 318 is connected between the two rectangular cylinders 3154, the two inner sleeves 317 are connected with an operating rod 3181, the inner top side surface of the inner sleeve 317 is connected with a pull rod 3171, the end part of the pull rod 3171 is connected with a lantern ring 3172 sleeved on the traction rope 3155, a second support ring 3161 is arranged on the inner side wall of the outer sleeve 316, and a spring B3162 is connected between the second support ring 3161 and the inner sleeve 317. When the operation rod 3181 is controlled to be dragged, the inner sleeve 317 is stretched, so that the pull rope 3155 is moved through the lantern ring 3172, the friction block 3153 is controlled to be separated from the outer side wall of the rectangular base plate 30 through the pull rope 3155, and the second plate 33 can be controlled to slide in the direction away from the first plate 31; when the force of the control operation rod 3181 is released, the operation rod 3181 and the friction block 3153 are restored to the initial positions under the action of the spring a3152 and the spring B3162, and the second plate 33 cannot be controlled to slide away from the first plate 31.
The outer side wall of the rectangular base plate 30 positioned at two sides of the rectangular hole 302 is provided with a resistance plate 303 matched with the friction block 3153, the resistance plate 303 is provided with a rough friction surface, and the running resistance of the friction block 3153 is increased through the arrangement of the friction surface.
As shown in fig. 6, the first through hole 312 and the second through hole 301 have the same structure, and both include a first duct 3012 perpendicular to the side plate 2 and a second duct 3013 forming an angle of 30 ° with the side plate 2; the two first pore canals 3012 are communicated, the two second pore canals 3013 are parallel or form an included angle of 60 degrees, and the inner side walls of the first through hole 312 and the second through hole 301 are both sprayed with sound attenuation material particles. The first through hole 312 and the second through hole 301 are matched, so that the overall heat dissipation effect is improved; simultaneously through the first 312 and the second 301 non-concentric settings of through-hole, and the spraying has the amortization material granule, avoids the first 312 and the second 301 of through-hole to set up too much influence holistic noise reduction effect.
As shown in fig. 2, the base 1 includes a bottom plate body 10, and two ends of the bottom plate body 10 are respectively provided with flanges 11; two sides of the upper surface of the bottom plate body 10 are respectively provided with an installation side wall 12, and the installation side wall 12 is provided with a first fixing nail 13; the side faces of the bottoms of the two ends of the side plate 2 are respectively provided with a first bump 22, the tops of the two ends of the side plate 2 are provided with a second bump 23, the tops of the second bumps 23 are provided with notches 24, and the edge sides of the two ends of the side plate 2 are provided with third fixing nails 25 for installing the end plate 4.
As in fig. 8 and 9; the end plate 4 comprises an n-shaped groove plate 41, a cover plate 42 which covers the end parts of the two side plates 2 is arranged at one opening end of the n-shaped groove plate 41, abutting sides 43 which abut against the inner walls of the two side plates 2 are arranged at two edge sides of the inner side wall of the cover plate 42, and a support plate 44 which abuts against the upper surface of the bottom plate body 10 is arranged at the bottom end of the cover plate 42; the two ends of the n-shaped groove plate 41 are provided with screw rods 45 in a penetrating way, and the two sides of the n-shaped groove plate 41 are respectively provided with a threaded hole 411 in threaded connection with the screw rods 45 and a through hole 412 in movable connection with the screw rods 45 in a penetrating way; the threaded hole 411 and the through hole 412 are in a concentric structure; and threaded blind holes 54 matched with the screw rods 45 are respectively formed at two ends of the top plate 5. Through the cooperation setting of above-mentioned structure, make things convenient for the installation and the dismantlement of curb plate 2, end plate 4 etc.
Two edge sides of roof 5 are provided with staple two 51, and two edge sides of the bottom surface of roof 5 are provided with the butt limit 52 that leans on at the 2 inner walls of both sides board, and the lateral wall of butt limit 52 is provided with rubber buffer layer 53, through the setting of rubber buffer layer 53, strengthens the buffering effect between the panel installation, strengthens the effect that gives sound insulation. Meanwhile, mounting holes for pipelines to pass through can be formed in the top plate 5, the side plates 2 or the end plates 4.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The utility model provides a device of making an uproar falls in vacuum pump which characterized in that: the vacuum pump comprises a base (1) for mounting the vacuum pump, wherein opposite side plates (2) are arranged on the upper surface of the base (1), the tops of the two side plates (2) are connected with a top plate (5), and two end parts of the two side plates (2) are respectively connected with an end plate (4);
a rectangular opening (21) is formed in the side plate (2), and a ventilation and sound-absorbing plate (3) is installed on the rectangular opening (21) in a matched mode;
the ventilation and sound absorption plate (3) comprises a rectangular base plate (30) attached to the outer side face of one side plate (2), a first plate (31) is arranged at one end of the inner side wall of the rectangular base plate (30), a corrugated section (32) with one end fixed on the inner side wall of the rectangular base plate (30) is connected to the side face of the first plate (31), and a second plate (33) is connected to the end portion of the corrugated section (32);
the first plate (31) and the second plate (33) have the same structure;
a T-shaped sliding strip is arranged on the inner side wall of the second plate (33) along the length direction of the second plate, and a T-shaped sliding groove (331) matched with the T-shaped sliding strip is arranged on the inner side wall of the rectangular substrate (30);
the first plate (31) and the second plate (33) both comprise a rectangular plate body (310), and clamping plates (311) which are abutted against the inner side wall of the side plate (2) are welded on the upper side and the lower side of the rectangular plate body (310) and one end, far away from the corrugated section (32), of the rectangular plate body;
the rectangular plate body (310) is provided with a first through hole (312), and the rectangular substrate (30) is provided with a second through hole (301) matched with the first through hole (312).
2. The vacuum pump noise reduction device according to claim 1, wherein a protrusion (313) is arranged on the outer side wall of the first plate (31), a rectangular hole (302) for the protrusion (313) to pass through is formed in the rectangular base plate (30), a rectangular control plate (314) is arranged on the top of the protrusion (313), two ends of the rectangular control plate (314) are respectively provided with a pipe body (315) in a penetrating manner, a first support ring (3151) is arranged on the inner wall of the pipe body (315), the first support ring (3151) is telescopically connected with a friction block (3153) through a spring A (3152), the top of the pipe body (315) is connected with an inverted rectangular cylinder (3154), and a traction rope (3155) is connected between the inner top side surface of the rectangular cylinder (3154) and the friction block (3153);
two opposite outer side walls of the rectangular cylinder (3154) are respectively communicated with an outer sleeve (316), and an inner sleeve (317) is sleeved in the outer sleeve (316);
a first connecting rod (318) is connected between the two rectangular cylinders (3154), the two inner sleeves (317) are connected with an operating rod (3181), the inner top side surface of each inner sleeve (317) is connected with a pull rod (3171), and the end part of each pull rod (3171) is connected with a lantern ring (3172) sleeved on a traction rope (3155).
3. A vacuum pump noise reduction device according to claim 2, wherein a second support ring (3161) is disposed on the inner sidewall of the outer sleeve (316), and a spring B (3162) is connected between the second support ring (3161) and the inner sleeve (317); and resistance plates (303) matched with the friction blocks (3153) are arranged on the outer side walls of the rectangular base plates (30) positioned on two sides of the rectangular hole (302), and rough friction surfaces are arranged on the resistance plates (303).
4. A vacuum pump noise reduction device according to claim 1, wherein the first through hole (312) and the second through hole (301) have the same structure and comprise a first hole channel (3012) vertical to the side plate (2) and a second hole channel (3013) forming an included angle a with the side plate (2); the two first pore channels (3012) are communicated, and the two second pore channels (3013) are parallel or form an included angle of 2 a.
5. A vacuum pump noise reduction device according to claim 4, wherein the inner side walls of the first through hole (312) and the second through hole (301) are both sprayed with noise reduction material particles, and the value range of a is 15-30 °.
6. The vacuum pump noise reduction device according to claim 1, wherein the base (1) comprises a bottom plate body (10), and flanges (11) are respectively arranged at two ends of the bottom plate body (10); two sides of the upper surface of the bottom plate body (10) are respectively provided with an installation side wall (12), and the installation side wall (12) is provided with a first fixing nail (13);
the side face is provided with lug one (22) respectively at the bottom of the both ends of curb plate (2), the both ends top of curb plate (2) is provided with lug two (23), the top of lug two (23) sets up notch (24), the both ends edge side of curb plate (2) is provided with staple three (25) that are used for installing end plate (4).
7. A vacuum pump noise reduction device according to claim 6, wherein the end plate (4) comprises an "n" type groove plate (41), an open end of the "n" type groove plate (41) is provided with a shielding plate (42) shielding the end parts of the two side plates (2), two edges of the inner side wall of the shielding plate (42) are provided with abutting sides (43) abutting against the inner walls of the two side plates (2), and the bottom end of the shielding plate (42) is provided with a supporting plate (44) abutting against the upper surface of the bottom plate body (10).
8. A vacuum pump noise reduction device according to claim 7, wherein two ends of the n-shaped groove plate (41) are provided with screw rods (45) in a penetrating way, and two sides of the n-shaped groove plate (41) are respectively provided with a threaded hole (411) in a penetrating way, wherein the threaded hole is in threaded connection with the screw rods (45), and a through hole (412) is movably connected with the screw rods (45); the threaded hole (411) and the through hole (412) are in concentric structures;
and threaded blind holes (54) matched with the screw rods (45) are respectively formed at two ends of the top plate (5).
9. A vacuum pump noise reduction device according to claim 1, wherein two fixing nails (51) are arranged at two edge sides of the top plate (5), two abutting edges (52) abutting against the inner walls of the two side plates (2) are arranged at two edge sides of the bottom side surface of the top plate (5), and a rubber buffer layer (53) is arranged at the outer side wall of each abutting edge (52).
10. A vacuum pump noise reduction device according to claim 1, characterized in that the top plate (5), the side plate (2) and the end plate (4) are made of metal plates coated with sound damping materials on the inner side and the outer side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111397443.5A CN114087166B (en) | 2021-11-23 | 2021-11-23 | Noise reduction device of vacuum pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111397443.5A CN114087166B (en) | 2021-11-23 | 2021-11-23 | Noise reduction device of vacuum pump |
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| CN114087166A true CN114087166A (en) | 2022-02-25 |
| CN114087166B CN114087166B (en) | 2023-06-23 |
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| CN208918772U (en) * | 2018-10-31 | 2019-05-31 | 苏州沧海真空机械有限公司 | A kind of totally enclosed type vacuum pump system |
| CN209083485U (en) * | 2018-11-21 | 2019-07-09 | 南通柯瑞特机械制造有限公司 | Low-noise vacuum pump |
| CN210239952U (en) * | 2019-06-21 | 2020-04-03 | 阿特拉斯·科普柯(无锡)压缩机有限公司 | Air compression equipment and box body assembly thereof |
| CN214170776U (en) * | 2020-10-27 | 2021-09-10 | 沈阳荣声压缩机有限公司 | Sound-proof housing for air compressor machine that can thread slipping installation was dismantled |
| CN213879497U (en) * | 2020-10-28 | 2021-08-03 | 西安永宁达自动化技术有限公司 | Intelligent control system power generation facility |
| CN214279744U (en) * | 2020-12-04 | 2021-09-24 | 无锡永强电子电器有限公司 | Transformer structure capable of reducing noise |
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| CN114087166B (en) | 2023-06-23 |
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