CN113623207A - Low-noise spiral impeller Roots blower - Google Patents

Low-noise spiral impeller Roots blower Download PDF

Info

Publication number
CN113623207A
CN113623207A CN202111004960.1A CN202111004960A CN113623207A CN 113623207 A CN113623207 A CN 113623207A CN 202111004960 A CN202111004960 A CN 202111004960A CN 113623207 A CN113623207 A CN 113623207A
Authority
CN
China
Prior art keywords
mounting
motor
roots blower
mounting seat
low noise
Prior art date
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.)
Withdrawn
Application number
CN202111004960.1A
Other languages
Chinese (zh)
Inventor
程凤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jinan Liming Fan Manufacturing Co ltd
Original Assignee
Jinan Liming Fan Manufacturing Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jinan Liming Fan Manufacturing Co ltd filed Critical Jinan Liming Fan Manufacturing Co ltd
Priority to CN202111004960.1A priority Critical patent/CN113623207A/en
Publication of CN113623207A publication Critical patent/CN113623207A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/126—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/0085—Prime movers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F04C2230/601—Adjustment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F04C2230/604—Mounting devices for pumps or compressors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

The invention provides a low-noise spiral impeller Roots blower, and relates to the field of spiral Roots blowers. The low-noise spiral impeller Roots blower comprises two support pieces, a transmission motor and a blower body, wherein the support pieces, the transmission motor and the blower body are symmetrically arranged, a motor mounting seat and a blower body mounting seat are respectively arranged between the two support pieces and close to two ends, an adjusting mechanism is arranged at the bottom of the motor mounting seat and the bottom of the blower body mounting seat, the transmission motor is fixedly connected onto the motor mounting seat, the output end of the transmission motor is fixedly connected with a rotating shaft, and the blower body is fixedly connected onto the blower body mounting seat. According to the invention, through the design of the adjusting structure of the motor mounting seat and the machine body mounting seat, the distance of the mounting hole position on the mounting seat can be adjusted to a certain degree, so that the mounting hole position can be better matched with the machine body or a connecting hole on the motor, meanwhile, the fault tolerance rate of the machining of the connecting holes on the machine body and the motor is also improved, and the mounting operation is greatly facilitated.

Description

Low-noise spiral impeller Roots blower
Technical Field
The invention relates to the technical field of spiral Roots blowers, in particular to a low-noise spiral impeller Roots blower.
Background
The screw-type roots blower is a rotary compressor for compressing and conveying gas, and during operation, the screw-type roots blower mainly works by the operation of an impeller rotor inside a machine body, and because of the special working mode of the roots blower, certain noise is always generated during operation, and in order to solve the problem of noise, the roots blower with low noise is provided, and a silencer is installed on the machine body by the aid of the screw-type roots blower, so that the effect of low noise can be realized, and further the working environment of workers is improved.
Although the purpose of low noise of the roots blower can be achieved by adding the silencer on the machine body at present, most of the roots blowers are too single in assembly structure, low in adaptability during installation and incapable of being adjusted properly according to the specifications of the machine body and the motor, and therefore the installation structure of the existing low-noise spiral roots blower is further improved.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a low-noise spiral impeller Roots blower, which solves the problems that the used Roots blower is too single in assembly structure, relatively low in adaptability during installation and incapable of being adjusted properly according to the specifications of a machine body and a motor.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a low-noise spiral impeller Roots blower comprises two symmetrical supporting pieces, a transmission motor and a blower body, wherein a motor mounting seat and a blower body mounting seat are respectively arranged between the two supporting pieces and close to two ends, and an adjusting mechanism is arranged at the bottom of the motor mounting seat and the bottom of the blower body mounting seat.
The transmission motor is fixedly connected to the motor mounting seat, the output end of the transmission motor is fixedly connected with a rotating shaft, the machine body is fixedly connected to the machine body mounting seat, the machine body is connected with the rotating shaft through a power shaft, and a silencer is arranged on the machine body.
The motor mounting seat comprises a first mounting plate and a second mounting plate, wherein two ends of the first mounting plate and two ends of the second mounting plate are fixedly connected with a first sliding block, the surface of the first sliding block is provided with a lock hole, one ends of opposite surfaces of the symmetrically arranged supporting pieces are provided with sliding grooves, the tail ends of the first sliding blocks extend to the inside of the sliding grooves and are in sliding connection with the sliding grooves, and the upper surfaces of the supporting pieces and above the sliding grooves are provided with fixing holes;
the machine body mounting seat comprises a third mounting plate and a fourth mounting plate, the fourth mounting plate is fixedly connected between the two side supporting pieces, adjusting grooves are formed in opposite surfaces of the two side supporting pieces and one side, close to the fourth mounting plate, of each side supporting piece, second sliding blocks are fixedly connected to two ends of the third mounting plate, and tail ends of the second sliding blocks extend into the adjusting grooves and are in sliding connection with the adjusting grooves;
the surface of first mounting panel, second mounting panel, third mounting panel, fourth mounting panel has all seted up the mounting hole, transmission motor passes through bolt fixed mounting on the mounting hole of motor mount pad, the organism passes through bolt fixed mounting on the mounting hole of organism mount pad.
Preferably, adjustment mechanism includes connecting piece and mounting, and connecting piece and mounting install respectively on two mounting panels in motor mount pad and organism mount pad, be connected with drive screw through the bearing rotation on the mounting, drive screw's one end runs through the connecting piece to with connecting piece threaded connection.
Preferably, one end of the driving screw, which is far away from the fixing part, is fixedly connected with a limiting block.
Preferably, the lower surface of the supporting piece is provided with a protective pad, and the protective pad is made of elastic materials.
Preferably, a guard plate is fixedly connected between the two supporting pieces, and the guard plate covers the joint of the power shaft and the rotating shaft.
Preferably, the fixing hole is a rectangular structure parallel to the sliding groove, and the fixing hole is communicated with the sliding groove.
Preferably, the inside of lockhole is helicitic texture, and first mounting panel passes through the bolt and installs on the fixed orifices with the cooperation of lockhole with the second mounting panel.
Preferably, grease is smeared in the sliding groove and the adjusting groove.
The working principle is as follows: at the in-process of installing drive motor 7 and organism 8, according to the distance between the connection hole site on organism 8 and the drive motor 7, can adjust the distance between the mounting panel of organism mount pad and motor mount pad through adjustment mechanism, concrete operation is: the driving screw 17 is controlled to rotate, the driving screw 17 is connected with the connecting piece 15 through threads, and then drives the mounting plate connected with the connecting piece 15 to move, thereby achieving the purpose of adjustment, when the distance between the mounting holes 9 on the adjacent mounting plates is consistent with the connecting hole position on the transmission motor 7 or the machine body 8, in addition, when the transmission motor 7 is required to be connected with the machine body 8, after the mounting plate of the motor mounting seat is fixedly connected with the transmission motor 7, the motor mounting seat is driven to move along the sliding groove 14 by pushing the transmission motor 7, and then the power shaft 20 of the machine body 8 is close to the rotating shaft 22 of the transmission motor 7, thereby facilitating the fixed connection between the two, after the transmission motor 7 moves to a proper position, a bolt penetrates through the fixing hole 18 and then is in threaded connection with the locking hole 11 on the first sliding block 10, thereby realizing the effect of fixing the position of the transmission motor 7.
(III) advantageous effects
The invention provides a low-noise spiral impeller Roots blower. The method has the following beneficial effects:
1. according to the invention, through the design of the adjusting structure of the motor mounting seat and the machine body mounting seat, the distance of the mounting hole position on the mounting seat can be adjusted to a certain degree, so that the mounting hole position can be better matched with the machine body or a connecting hole on the motor, meanwhile, the fault tolerance rate of the machining of the connecting holes on the machine body and the motor is also improved, and the mounting operation is greatly facilitated.
2. According to the invention, the distance between the motor mounting seat and the machine body mounting seat can be adjusted, so that the connection between the motor and the machine body is more convenient to operate, and meanwhile, the adaptability of the fan in the installation process is improved.
3. The invention has simple integral structure and low processing difficulty during production and manufacture, and better meets the manufacturing standard.
Drawings
FIG. 1 is a first view of the overall construction of a low noise, helical impeller Roots blower in accordance with the present invention;
FIG. 2 is a second view of the overall construction of a low noise helical impeller Roots blower in accordance with the present invention;
FIG. 3 is a third view of the overall construction of a low noise helical impeller Roots blower in accordance with the present invention;
FIG. 4 is an elevational view of the overall construction of a low noise helical impeller Roots blower in accordance with the present invention;
FIG. 5 is a schematic view of a first mounting plate structure for a low noise helical impeller Roots blower in accordance with the present invention.
Wherein, 1, a support part; 2. a protective pad; 3. a first mounting plate; 4. a second mounting plate; 5. a third mounting plate; 6. a fourth mounting plate; 7. a drive motor; 8. a body; 9. mounting holes; 10. a first slider; 11. a lock hole; 12. a second slider; 13. an adjustment groove; 14. a sliding groove; 15. a connecting member; 16. a fixing member; 17. a drive screw; 18. a fixing hole; 19. a muffler; 20. a power shaft; 21. a guard plate; 22. a rotating shaft.
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 should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in fig. 1-5, an embodiment of the present invention provides a low-noise helical impeller roots blower, which includes two support members 1, a transmission motor 7, and a blower body 8, the blower body 8 has the same internal structure as the existing helical blower, a motor mount and a blower body mount are respectively disposed between the two support members 1 and near two ends, and are respectively used for fixing the transmission motor 7 and the blower body 8, an adjusting mechanism is disposed at the bottom of the motor mount and the blower body mount and is used for adjusting the distance between the mounting holes 9 on the mount, the adjusting mechanism includes a connecting member 15 and a fixing member 16, the connecting member 15 and the fixing member 16 are respectively mounted on two mounting plates of the motor mount and the blower body mount, the fixing member 16 is rotatably connected with a driving screw 17 through a bearing, and the adjustment of the distance between the motor mount and the mounting plates on the blower body mount is further achieved by controlling the driving screw 17 to rotate, one end of the driving screw 17 penetrates through the connecting piece 15 and is in threaded connection with the connecting piece 15, the driving is achieved through the threaded force, the stability is achieved, the operation is simple and convenient, the limiting block is fixedly connected to one end, far away from the fixing piece 16, of the driving screw 17, and a certain limiting effect is achieved on movement of the mounting plate.
The motor mounting seat comprises a first mounting plate 3 and a second mounting plate 4, the two mounting plates are of a main structure consisting of the motor mounting seat, two ends of the first mounting plate 3 and the second mounting plate 4 are fixedly connected with a first sliding block 10 which is matched with a sliding groove 14, the surface of the first sliding block 10 is provided with a locking hole 11 for fixing the first mounting plate 3 and the second mounting plate 4, the inner part of the locking hole 11 is of a threaded structure, the first mounting plate 3 and the second mounting plate 4 are arranged on a fixing hole 18 through the matching of a bolt and the locking hole 11, the motor mounting seat has the characteristic of convenient disassembly, the symmetrically arranged supporting pieces 1 are provided with the sliding grooves 14 at one ends of opposite surfaces, the tail end of the first sliding block 10 extends to the inner part of the sliding groove 14, the distance between the two mounting plates can be adjusted, and the distance between the motor mounting seat and the machine body mounting seat which are jointly formed can be adjusted, and with sliding tray 14 sliding connection, support piece 1's upper surface just is located sliding tray 14 top and has seted up fixed orifices 18, and fixed orifices 18 is the rectangle structure that is parallel to each other with sliding tray 14, and fixed orifices 18 are linked together with sliding tray 14, are convenient for to the better fixed of first mounting panel 3 and second mounting panel 4.
Organism mount pad includes third mounting panel 5, fourth mounting panel 6, this two mounting panels are the major structure of organism mount pad, 6 fixed connection of fourth mounting panel is between both sides support piece 1, through bolt fixed mounting between support piece 1, and both sides support piece 1's opposite face and be close to one side of fourth mounting panel 6 and seted up adjustment tank 13, the place of third mounting panel 5 motion is provided, the equal fixedly connected with second slider 12 in both ends of third mounting panel 5, and the end of second slider 12 extends to the inside of adjustment tank 13, and with adjustment tank 13 sliding connection, the effect that has spacing direction to third mounting panel 5, guarantee its in-process steady motion at the regulation, sliding tray 14 all smears the grease with the inside of adjustment tank 13, when the distance between the mount pad when adjusting, control convenience more.
The surface of the first mounting plate 3, the second mounting plate 4, the third mounting plate 5, the fourth mounting plate 6 are all provided with mounting holes 9, the mounting holes 9 are matched with connecting holes on the transmission motor 7 and the machine body 8, the fixing of the two is realized by using bolts, the transmission motor 7 is fixedly mounted on the mounting holes 9 of the motor mounting seat through bolts, the output end of the transmission motor 7 is fixedly connected with a rotating shaft 22, the machine body 8 is fixedly mounted on the mounting holes 9 of the machine body mounting seat through bolts, the machine body 8 is connected with the rotating shaft 22 through a power shaft 20, a silencer 19 is arranged on the machine body 8, the silencer 19 can play a role of reducing noise for the operation of the fan, the effect of low noise is realized, the lower surface of the support member 1 is provided with the protective pad 2, the protective pad 2 is made of elastic material, preferably made of silicon rubber, and can buffer the vibration of the fan to a certain extent, increase the stability that the device was placed simultaneously, fixedly connected with backplate 21 between two support piece 1, and backplate 21 cover is established in the junction of power shaft 20 and pivot 22, has certain guard effect, prevents that the accident of the shaft connecting piece between two axles from hindering the people.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a low noise screw-tupe impeller roots blower, includes support piece (1), drive machine (7), organism (8) that two symmetries set up, its characterized in that: a motor mounting seat and a machine body mounting seat are respectively arranged between the two supporting pieces (1) and close to the two ends, and adjusting mechanisms are arranged at the bottoms of the motor mounting seat and the machine body mounting seat;
transmission motor (7) fixed connection is on the motor mount pad, the output fixedly connected with pivot (22) of transmission motor (7), organism (8) fixed connection is on the organism mount pad, organism (8) are connected with pivot (22) through power shaft (20), and be provided with muffler (19) on organism (8).
2. A low noise helical impeller roots blower as set forth in claim 1 wherein: the motor mounting seat comprises a first mounting plate (3) and a second mounting plate (4), wherein the first mounting plate (3) and a first slider (10) fixedly connected to the two ends of the second mounting plate (4) are symmetrically arranged, a lock hole (11) is formed in the surface of the first slider (10), a sliding groove (14) is formed in one end of the opposite surface of the support piece (1), the tail end of the first slider (10) extends to the inside of the sliding groove (14) and is connected with the sliding groove (14) in a sliding mode, and a fixing hole (18) is formed in the upper surface of the support piece (1) and located above the sliding groove (14).
3. A low noise helical impeller roots blower as set forth in claim 2 wherein: organism mount pad includes third mounting panel (5), fourth mounting panel (6) fixed connection is between both sides support piece (1), and the opposite face of both sides support piece (1) and be close to one side of fourth mounting panel (6) and seted up adjustment tank (13), the equal fixedly connected with second slider (12) in both ends of third mounting panel (5), and the end of second slider (12) extends to the inside of adjustment tank (13) to with adjustment tank (13) sliding connection.
4. A low noise helical impeller roots blower as set forth in claim 3 wherein: mounting hole (9) have all been seted up on the surface of first mounting panel (3), second mounting panel (4), third mounting panel (5), fourth mounting panel (6), drive motor (7) are through bolt fixed mounting on mounting hole (9) of motor mount pad, organism (8) are through bolt fixed mounting on mounting hole (9) of organism mount pad.
5. The low noise helical impeller roots blower of claim 4, wherein: adjustment mechanism includes connecting piece (15) and mounting (16), and installs respectively on two mounting panels in motor mount pad and organism mount pad connecting piece (15) and mounting (16), be connected with drive screw (17) through the bearing rotation on mounting (16), the one end through connection piece (15) of drive screw (17) to with connecting piece (15) threaded connection.
6. The low noise helical impeller roots blower of claim 5, wherein: and one end of the driving screw rod (17) far away from the fixing piece (16) is fixedly connected with a limiting block.
7. A low noise helical impeller roots blower as set forth in claim 1 wherein: the lower surface of the supporting piece (1) is provided with a protective pad (2), and the protective pad (2) is made of elastic materials.
8. A low noise helical impeller roots blower as set forth in claim 1 wherein: two fixedly connected with backplate (21) between support piece (1), and backplate (21) cover is established in the junction of power shaft (20) and pivot (22).
9. A low noise helical impeller roots blower as set forth in claim 2 wherein: the fixing hole (18) is of a rectangular structure parallel to the sliding groove (14), and the fixing hole (18) is communicated with the sliding groove (14).
10. A low noise helical impeller roots blower as set forth in claim 2 wherein: the inside of lockhole (11) is thread structure, and first mounting panel (3) and second mounting panel (4) are installed on fixed orifices (18) through the cooperation of bolt and lockhole (11).
CN202111004960.1A 2021-08-30 2021-08-30 Low-noise spiral impeller Roots blower Withdrawn CN113623207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111004960.1A CN113623207A (en) 2021-08-30 2021-08-30 Low-noise spiral impeller Roots blower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111004960.1A CN113623207A (en) 2021-08-30 2021-08-30 Low-noise spiral impeller Roots blower

Publications (1)

Publication Number Publication Date
CN113623207A true CN113623207A (en) 2021-11-09

Family

ID=78388364

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111004960.1A Withdrawn CN113623207A (en) 2021-08-30 2021-08-30 Low-noise spiral impeller Roots blower

Country Status (1)

Country Link
CN (1) CN113623207A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114837973A (en) * 2022-05-13 2022-08-02 山东省章丘鼓风机股份有限公司 Centrifugal fan with assembled base

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114837973A (en) * 2022-05-13 2022-08-02 山东省章丘鼓风机股份有限公司 Centrifugal fan with assembled base

Similar Documents

Publication Publication Date Title
CN219287978U (en) Energy-saving heat dissipation device for power plant equipment
CN113623207A (en) Low-noise spiral impeller Roots blower
CN111980448A (en) Energy-saving ventilation structure for green building
CN211601047U (en) Rotation regulation type wind direction adjustable air diffuser
CN213401684U (en) Electric grounding protection device for power plant
CN215370236U (en) A kind of compressor
CN212774631U (en) High-temperature-resistant and vibration-resistant one-way swash plate type compressor
CN113606142A (en) High-speed high-pressure three-blade Roots blower
CN111396314A (en) Direct-connected screw air compressor
CN219013373U (en) Disc swinging door convenient to overhaul
CN219795606U (en) Novel centrifugal blower
CN221322756U (en) Cabinet type centrifugal fan
CN216665994U (en) Novel axial flow smoke exhaust fan
CN212250539U (en) Strenghthened type low noise fan
CN215335547U (en) Axial flow fan with fixing device
CN221683234U (en) High-performance air conditioner blower for automobile
CN214836990U (en) Water-cooling cylinder air compressor machine with automatically regulated function
CN216803787U (en) Board cutting mechanism and vertical board cutting equipment with same
CN218118033U (en) Air condition compressor screw rod with butt joint function
CN217842084U (en) Ceiling fan capable of rotating by 360 degrees
CN216975348U (en) Adjustable high-pressure fan special for papermaking
CN218207167U (en) Multilayer fan blade type diagonal flow fan
CN218935882U (en) Face recognition machine with full-view light effect
CN215499981U (en) Controller structure for brushless motor
CN208767886U (en) Novel energy-saving traction motor

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication

Application publication date: 20211109

WW01 Invention patent application withdrawn after publication