CN208778241U

CN208778241U - The silencing means of Roots blower

Info

Publication number: CN208778241U
Application number: CN201821643402.3U
Authority: CN
Inventors: 廖章会
Original assignee: JIANGXI SHOUPU INDUSTRIAL Co Ltd
Current assignee: JIANGXI SHOUPU INDUSTRIAL Co Ltd
Priority date: 2018-10-11
Filing date: 2018-10-11
Publication date: 2019-04-23
Anticipated expiration: 2028-10-11

Abstract

The utility model discloses a kind of silencing means of Roots blower, including noise reduction lid, noise reduction shell and noise reduction inner casing, noise reduction to cover on noise reduction shell, and noise reduction inner casing is mounted in noise reduction shell.It is equipped with cover board, partition, baffle and bottom plate in noise reduction inner casing, acoustical cotton and air inlet pipe are equipped between cover board and partition, acoustical cotton is wrapped in air inlet pipe.The silencing means structure of the Roots blower is simple, can easily dismantle, additionally it is possible to stop impurity and dust.Good muffling effect can reduce the noise of Roots blower 80%, enable the normal operation of staff.

Description

The silencing means of Roots blower

Technical field

The utility model relates to a kind of noise reduction of Roots blower equipment technical field more particularly to Roots blower dresses It sets.

Background technique

For Roots blower because air quantity is big, force feed gas is steady, oil-free, and dry, the cost of equipment maintenance low service life is long, so To being widely applied.But Roots blower is also easy to produce biggish noise when in use, makes to the personnel of staff and scene It at noise pollution, works in the environment of strong noise for a long time, easily causes tinnitus, deafness and hearing impairment.So needing to install additional Muffler.The erasure effect of conventional muffler is not ideal enough, requires further improvement.

Utility model content

In order to solve the problems of the above-mentioned prior art, the utility model proposes a kind of noise reduction of Roots blower dresses It sets.

The technical solution of the utility model is achieved in that

A kind of silencing means of Roots blower, including noise reduction lid, noise reduction shell and noise reduction inner casing, which is characterized in that institute It states noise reduction inner casing and is mounted on the noise reduction interior of shell, the noise reduction shell is equipped with support rod, and the noise reduction lid is placed on institute It states on support rod, the noise reduction upper shell is equipped with cover board, and the cover board is placed on the noise reduction inner casing, the noise reduction inner casing In be equipped with partition, the partition between the lower section of the cover board, the cover board and partition be equipped with acoustical cotton and air inlet pipe, it is described Acoustical cotton is wrapped in around air inlet pipe, and the cover board and partition are equipped with air inlet pipe hole, is equipped with several gears below the partition Plate, the baffle are equipped with through-hole, bottom plate are equipped with below the baffle, and the bottom plate is equipped with several escape pipes, the outlet The side wall of the sealing of pipe both ends, the escape pipe is equipped with several ventholes.

In the silencing means of this Roots blower of the utility model, it is cased with filter plate on the noise reduction shell, it is described Filter plate is equipped with mounting hole, and the mounting hole is matched to be mounted on the support rod.

In the silencing means of this Roots blower of the utility model, the noise reduction outer casing inner wall is equipped with spiral prominence The portion of rising, the noise reduction inner casing outer wall are equipped with and the matched spiral salient portion of the noise reduction outer casing inner wall.

In the silencing means of this Roots blower of the utility model, spiral shell is equipped with below the noise reduction outer shell outer wall Line.

In the silencing means of this Roots blower of the utility model, noise reduction outer casing inner wall lower part is equipped with support Portion.

The silencing means for implementing this Roots blower of the utility model, has the advantages that the Roots blower The silencing means structure of machine is simple, can easily dismantle, additionally it is possible to stop impurity and dust.The silencing means utilizes more small Pipe carrys out air inlet, reduces noise, while baffle is arranged, and stops gas, reduces noise, finally by the venthole on more escape pipes Discharge.Good muffling effect can reduce the noise of Roots blower 80%, enable the normal operation of staff.

Detailed description of the invention

Fig. 1 is the silencing means structural schematic diagram of the Roots blower of the utility model；

Fig. 2 is the partial structure diagram of Fig. 1；

Fig. 3 is the partial structure diagram of Fig. 2；

Fig. 4 is partial enlarged view at A in Fig. 3；

Fig. 5 is the top view of Fig. 1；

Fig. 6 is cross-sectional view at the B-B of Fig. 5；

Fig. 7 is partial enlarged view at C in Fig. 6；

Fig. 8 is partial enlarged view at D in Fig. 6；

Fig. 9 is schematic diagram of internal structure in Fig. 1；

Figure 10 is the perspective view of the explosion of noise reduction shell and noise reduction inner casing in Fig. 1.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe.

As shown in Fig. 1 to 10, the silencing means of this Roots blower of the utility model, including noise reduction lid 10, noise reduction Shell 11 and noise reduction inner casing 12.Noise reduction inner casing 12 is mounted on inside noise reduction shell 11, and noise reduction shell 11 is equipped with support rod 13, is disappeared Sound lid 10 is placed on support rod 13.Noise reduction lid 10 is used to cover the upper end of noise reduction shell 10, when preventing from working outdoors by 11 upper end of noise reduction shell is damaged by weather reason, for protecting noise reduction shell 10.Support rod 13 is equipped at three simultaneously, will directly be disappeared Sound lid 10 is placed on support rod 13.It is cased with filter plate 14 in 10 upper end of noise reduction shell, which is equipped with filter opening 141, And mounting hole 142 is additionally provided on filter plate 14, the size of mounting hole 142 and the size of support rod 13 match, can be by filter plate 14 are placed on support rod 13.Filter plate 14 can stop external impurity and dust to enter in Roots blower, to Roots blower Machine is protected, so that inner body service life extends.Filter plate 14 is the filter plate 14 between noise reduction shell 11 and noise reduction lid 10 External dust and impurities can be stopped to enter inside Roots blower, and can also prevent noise reduction lid 10 from propping up when in use It is shaken on strut 13.

Noise reduction inner casing 12 is located in inside noise reduction shell 11, and the inner wall of noise reduction shell 11 is equipped with spiral helicine protrusion Portion 15, the outer wall of noise reduction inner casing 12 is equipped with to be put with the matched helical raised portion 15 of 11 inner wall of noise reduction shell, noise reduction inner casing 12 When setting in noise reduction shell 11, it is only necessary to which the rotation of noise reduction inner casing 12 can be put into noise reduction shell 11.This mode can hinder The noise in noise reduction inner casing 12 is kept off, noise is reduced.And there are gaps between lug boss 15 and lug boss 15, can be put into sound insulation Material further reinforces soundproof effect.Support portion 16 is equipped with below the inner wall of noise reduction shell 11, noise reduction inner casing 12 is put in rotation After entering in noise reduction shell 11, noise reduction inner casing 12 is supported using support portion 16.Spiral shell is equipped on the lower end outer wall of noise reduction shell 11 Line 17 can be mounted on Roots blower, convenient disassembly by screw thread 17.

11 upper end of noise reduction shell is equipped with cover board 18, and cover board 18 is placed on noise reduction inner casing 12, the upper surface of cover board 18 with disappear The upper surface of sound shell 11 is concordant.Partition 19 is equipped in noise reduction inner casing 12, partition 19 is disappearing in the lower section of cover board 18, partition 19 The middle position of sound inner casing 12.Acoustical cotton 20 and air inlet pipe 21 are equipped between cover board 18 and partition 19, air inlet pipe 21 is used for air inlet. Acoustical cotton 20 is wrapped in around air inlet pipe 21, and acoustical cotton 20 generates when can be to 21 air inlet of air inlet pipe around air inlet pipe 21 Noise absorbed, and the caliber of air inlet pipe 21 is smaller, and the noise of generation is also smaller.It is set between cover board 18 and partition 19 More air inlet pipe 21 are set, guarantee the amount of air inlet, will not influence the air capacity of entrance, while reducing noise.In cover board 18 and partition 19 are equipped with air inlet pipe hole 22, and for air inlet pipe hole 22 for placing air inlet pipe 21, air inlet pipe 21 is sinuate to be placed on cover board Between 18 and partition 19, air inlet period in air inlet pipe 21 is long, and 20 absorption of noise effect of acoustical cotton is preferable.

The lower section of partition 19 is equipped with several baffles 23, and baffle 23 is equipped with through-hole 24.The position of through-hole 24 is in baffle 23 Eccentric position on.The through-hole on 24 position of through-hole and the second block baffle 23 when installing baffle 23, in the first block baffle 23 24 positions not on the same axis, but rotate 180 ° of installation, and then 24 position of through-hole in third block baffle 23 is and the 24 position consistency of through-hole in one block baffle 23.When air enters in this way, it is state entrance one on the other, sky can be stopped Gas carries out noise reduction, good muffling effect.Bottom plate 25 is finally equipped with below baffle 23, bottom plate 25 is used for barrier gas, and the bottom of at Plate 25 is equipped with several escape pipes 26, and escape pipe 26 enters in Roots blower for gas to be discharged.The both ends of escape pipe 26 are Sealing, the side wall of escape pipe 26 is equipped with several ventholes 27, and escape pipe 26 is mounted on bottom plate 25, and one end is in bottom plate 25 Inside, the other end is in the outside of bottom plate 25, and venthole 27 is on the both ends escape pipe 26 of bottom plate 25, and gas is from the inside of bottom plate 25 Venthole 27 on escape pipe 26 enters, and is then discharged by the venthole 27 on 25 outside escape pipe 26 of bottom plate.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, made any modification, equivalent replacement and improvement etc. should be included in the utility model Protection scope within.

Claims

1. a kind of silencing means of Roots blower, including noise reduction lid, noise reduction shell and noise reduction inner casing, which is characterized in that described Noise reduction inner casing is mounted on the noise reduction interior of shell, and the noise reduction shell is equipped with support rod, and the noise reduction lid is placed on described On support rod, the noise reduction upper shell is equipped with cover board, and the cover board is placed on the noise reduction inner casing, in the noise reduction inner casing Equipped with partition, the partition is equipped with acoustical cotton and air inlet pipe, the suction between the lower section of the cover board, the cover board and partition Sound cotton is wrapped in around air inlet pipe, and the cover board and partition are equipped with air inlet pipe hole, is equipped with several baffles below the partition, The baffle is equipped with through-hole, and bottom plate is equipped with below the baffle, and the bottom plate is equipped with several escape pipes, the escape pipe two The side wall of end sealing, the escape pipe is equipped with several ventholes.

2. the silencing means of Roots blower according to claim 1, which is characterized in that be cased with filter on the noise reduction shell Plate, the filter plate are equipped with mounting hole, and the mounting hole is matched to be mounted on the support rod.

3. the silencing means of Roots blower according to claim 1, which is characterized in that set on the noise reduction outer casing inner wall There is spiral salient portion, the noise reduction inner casing outer wall is equipped with and the matched spiral salient portion of the noise reduction outer casing inner wall.

4. the silencing means of Roots blower according to claim 1, which is characterized in that below the noise reduction outer shell outer wall Equipped with screw thread.

5. the silencing means of Roots blower according to claim 1, which is characterized in that noise reduction outer casing inner wall lower part Equipped with support portion.