CN215979880U

CN215979880U - Roots blower with good noise reduction effect

Info

Publication number: CN215979880U
Application number: CN202122022586.XU
Authority: CN
Inventors: 牛振环
Original assignee: Shandong Zhenghe Blower Co ltd
Current assignee: Shandong Zhenghe Blower Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-03-08
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses a Roots blower with a good noise reduction effect, which comprises a machine base, a noise reduction pipe and a damping spring, wherein a motor is installed on one side of the upper surface of the machine base, a driving wheel is rotatably installed at the front end of the motor, a blower body is installed on the other side of the upper surface of the machine base, a driven wheel is rotatably installed at the front end of the blower body, an air inlet channel is fixed at the top end of the blower body, the top end of the air inlet channel is fixedly connected with the bottom end of the noise reduction pipe, the air inlet channel is communicated with the noise reduction pipe, an air exhaust channel is fixed at one side of the blower body, second fixed blocks are respectively fixed between the front end and the rear end of the bottom of the blower body, a first fixed block is respectively fixed on the upper surface of the machine base below the two second fixed blocks, and the damping spring is fixed between the upper surface of the first fixed block and the lower surface of the second fixed block. The utility model has the advantages that the noise is reduced by additionally arranging the silencing pipe, and part of vibration force is converted by the damping spring.

Description

Roots blower with good noise reduction effect

Technical Field

The utility model relates to the technical field of Roots blowers, in particular to a Roots blower with a good noise reduction effect.

Background

The Roots blower belongs to a positive displacement blower, and the end faces of an impeller and front and rear end covers of the blower. The principle is a rotary compressor which compresses and conveys gas by utilizing the relative motion of two blade-shaped rotors in a cylinder. The blower is simple in structure and convenient to manufacture.

Roots's fan has great noise at the working process to the fan has certain vibrations, and the vibrations power is used in the fixed bolt department of fan, and the time has been of a specified duration and has leaded to the bolt not hard up easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a Roots blower with a good noise reduction effect, which has the advantages that a noise reduction pipe is additionally arranged to reduce noise, and part of vibration force is converted by a damping spring, so that the problems that the Roots blower has larger noise in the working process, the blower has certain vibration, the vibration force acts on a bolt fixed by the blower, and the bolt is easy to loosen after a long time.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a roots blower with good silencing effect, includes frame, hush pipe and damping spring, the motor is installed to frame upper surface one side, the motor front end is rotated and is installed the action wheel, the fan body is installed to frame upper surface opposite side, fan body front end is rotated and is installed from the driving wheel, fan body top is fixed with inlet air channel, inlet air channel top and hush pipe bottom fixed connection, inlet air channel and hush pipe intercommunication, fan body one side is fixed with the passageway of airing exhaust, the centre at both ends is fixed with the second fixed block respectively around the fan body bottom, two the frame upper surface of second fixed block below is fixed with first fixed block respectively, be fixed with damping spring between first fixed block upper surface and the second fixed block lower surface.

Preferably, a first base is fixed on one side of the upper surface of the machine base, and a motor is fixed on the first base.

Preferably, a second base is fixed on the other side of the upper surface of the machine base, and a fan body is fixed on the second base.

Preferably, a belt is in transmission connection between the driving wheel and the driven wheel.

Preferably, the air inlet channel and the air exhaust channel are respectively communicated with the inner cavity of the fan body.

Preferably, the top end of the damping spring is fixed to the lower surface of the second fixing block, and the bottom end of the damping spring is fixed to the upper surface of the first fixing block.

Compared with the prior art, the utility model has the following beneficial effects: the utility model achieves the effects of reducing noise by additionally arranging the silencing pipe and converting part of vibration force by the damping spring by arranging the silencing pipe, the first fixing block, the second fixing block and the damping spring. The utility model is provided with a silencing pipe, a first fixing block, a second fixing block and a damping spring, wherein the silencing pipe is arranged on an air inlet channel of a fan body, a motor is started to drive a driving wheel to rotate, the driving wheel drives a driven wheel to rotate through a belt, an impeller in an inner cavity of the fan body rotates along with the driven wheel, outside air enters the inner cavity of the fan body through the silencing pipe and the air inlet channel and is compressed and then is discharged from an air exhaust channel, and the silencing pipe is used for silencing the entering air, so that the noise is weakened.

The fan body during operation has vibrations, and the vibrations power part is used in damping spring, and damping spring converts the vibrations power into elastic potential energy, reduces the influence of fan body vibrations to the bolt of fixed fan body.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is an enlarged schematic view taken at A of FIG. 1 in accordance with the present invention;

fig. 3 is a right-view structural diagram of the present invention.

In the figure: 1. a machine base; 2. a motor; 3. a first base; 4. a second base; 5. a fan body; 6. an air exhaust channel; 7. a driven wheel; 8. an air inlet channel; 9. a sound-deadening tube; 10. a belt; 11. a driving wheel; 12. a first fixed block; 13. a second fixed block; 14. a shock absorbing spring.

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 "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be 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 1

Referring to fig. 1 and 3, an embodiment of the present invention: the utility model provides a roots blower that noise cancelling effect is good, includes frame 1 and hush pipe 9, and motor 2 is installed to frame 1 upper surface one side, and frame 1 upper surface one side is fixed with first base 3, is fixed with motor 2 on the first base 3, just as the technical staff in the field knows, and the provision of motor 2 is common, and it belongs to conventional means or common general knowledge, just no longer gives details here, and technical staff in the field can carry out arbitrary apolegamy according to its needs or facility, and the rotation of motor 2 front end is installed action wheel 11. The fan body 5 is installed on the other side of the upper surface of the base 1, as is well known to those skilled in the art, the fan body 5 is provided with common knowledge, the fan body belongs to conventional means or common general knowledge, and is not described herein any more, those skilled in the art can carry out any selection and matching according to needs or convenience, the second base 4 is fixed on the other side of the upper surface of the base 1, the fan body 5 is fixed on the second base 4, the driven wheel 7 is rotatably installed at the front end of the fan body 5, and the belt 10 is connected between the driving wheel 11 and the driven wheel 7 in a transmission manner. The motor 2 starts to drive the driving wheel 11 to rotate, the driving wheel 11 drives the driven wheel 7 to rotate through the belt 10, and the impeller in the inner cavity of the fan body 5 rotates along with the driven wheel 7.

An air inlet channel 8 is fixed at the top end of the fan body 5, the top end of the air inlet channel 8 is fixedly connected with the bottom end of the silencing pipe 9, the air inlet channel 8 is communicated with the silencing pipe 9, an air exhaust channel 6 is fixed at one side of the fan body 5, and the air inlet channel 8 and the air exhaust channel 6 are respectively communicated with an inner cavity of the fan body 5. Outside air enters the inner cavity of the fan body 5 through the silencing pipe 9 and the air inlet channel 8 and is compressed and then discharged from the air exhaust channel 6, and the silencing pipe 9 carries out silencing treatment on the entering air, so that noise is weakened.

Example 2

Referring to fig. 1 to 3, an embodiment of the present invention includes: the utility model provides a roots blower that noise cancelling effect is good, includes fan body 5, and the centre at both ends is fixed with second fixed block 13 respectively around fan body 5 bottom, and 1 upper surface of frame below two second fixed blocks 13 is fixed with first fixed block 12 respectively, is fixed with damping spring 14 between first fixed block 12 upper surface and the 13 lower surfaces of second fixed block, and damping spring 14's elastic coefficient is selected by the technical staff of this specialty according to actual conditions and is used. The top end of the damping spring 14 is fixed with the lower surface of the second fixing block 13, and the bottom end of the damping spring 14 is fixed with the upper surface of the first fixing block 12.

When the fan body 5 works, vibration is generated, the vibration force is partially acted on the damping spring 14, the damping spring 14 converts the vibration force into elastic potential energy, and the influence of the vibration of the fan body 5 on a bolt for fixing the fan body 5 is reduced.

The working principle is as follows: the motor 2 starts to drive the driving wheel 11 to rotate, the driving wheel 11 drives the driven wheel 7 to rotate through the belt 10, the impeller in the inner cavity of the fan body 5 rotates with the driven wheel 7, outside air enters the inner cavity of the fan body 5 through the silencing pipe 9 and the air inlet channel 8 and is compressed and then discharged from the air exhaust channel 6, and the silencing pipe 9 carries out silencing treatment on the entering air.

The vibration force of the blower body 5 during operation partially acts on the damping spring 14, and the damping spring 14 converts the vibration force into elastic potential energy for damping.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a roots blower that noise cancelling effect is good, includes frame (1), hush pipe (9) and damping spring (14), its characterized in that: a motor (2) is arranged on one side of the upper surface of the machine base (1), a driving wheel (11) is rotatably arranged at the front end of the motor (2), a fan body (5) is arranged on the other side of the upper surface of the base (1), a driven wheel (7) is rotatably arranged at the front end of the fan body (5), an air inlet channel (8) is fixed at the top end of the fan body (5), the top end of the air inlet channel (8) is fixedly connected with the bottom end of the silencing pipe (9), the air inlet channel (8) is communicated with the silencing pipe (9), an air exhaust channel (6) is fixed on one side of the fan body (5), second fixed blocks (13) are respectively fixed in the middles of the front end and the rear end of the bottom of the fan body (5), first fixed blocks (12) are respectively fixed on the upper surface of the machine base (1) below the two second fixed blocks (13), and a damping spring (14) is fixed between the upper surface of the first fixing block (12) and the lower surface of the second fixing block (13).

2. A sound-muffling roots blower as set forth in claim 1, wherein: a first base (3) is fixed on one side of the upper surface of the machine base (1), and a motor (2) is fixed on the first base (3).

3. A sound-muffling roots blower as set forth in claim 1, wherein: and a second base (4) is fixed on the other side of the upper surface of the machine base (1), and a fan body (5) is fixed on the second base (4).

4. A sound-muffling roots blower as set forth in claim 1, wherein: and a belt (10) is in transmission connection between the driving wheel (11) and the driven wheel (7).

5. A sound-muffling roots blower as set forth in claim 1, wherein: the air inlet channel (8) and the air exhaust channel (6) are respectively communicated with the inner cavity of the fan body (5).

6. A sound-muffling roots blower as set forth in claim 1, wherein: the top end of the damping spring (14) is fixed to the lower surface of the second fixing block (13), and the bottom end of the damping spring (14) is fixed to the upper surface of the first fixing block (12).