CN212608122U

CN212608122U - Silencer for grain suction machine

Info

Publication number: CN212608122U
Application number: CN202020695353.9U
Authority: CN
Inventors: 王光成; 车世云; 车成斌
Original assignee: Yangzhou Yongfa Machinery Manufacturing Co ltd
Current assignee: Yangzhou Yongfa Machinery Manufacturing Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-02-26
Anticipated expiration: 2030-04-29

Abstract

The utility model discloses a silencer for grain elevator belongs to grain elevator equipment technical field. The silencer comprises a silencer cylinder, a rotating shaft and a silencing sheet, wherein the rotating shaft is fixed on a central axis in the silencer cylinder; the silencing piece is S-shaped, a limiting hole is formed in the center of the silencing piece, and a silencing hole is formed in the silencing piece; the silencing sheet is fixed on the rotating shaft through the limiting hole; and an air inlet pipe and an air outlet pipe are connected to two sides of the silencer cylinder. The utility model discloses the amortization piece adopts S type amortization piece, increases the amortization area, can change air current propagation direction moreover, and extension air current propagates the distance, has improved noise elimination effect.

Description

Silencer for grain suction machine

Technical Field

The utility model belongs to the technical field of pneumatic grain elevator equipment, concretely relates to silencer for pneumatic grain elevator.

Background

Noise generated during operation of the fan often becomes a source of accidents affecting health of workers and interfering with environment, especially, when an individual works nearby the fan, aerodynamic noise radiated by an air inlet pipe and an air outlet pipe of the fan is a main factor polluting environment, and is a nuisance, so that physical and mental health of the workers is damaged, and the service life of the fan is shortened.

In the working process of the grain elevator, the air speed of the airflow in the ventilation pipeline is high, so that the noise is high, a silencer needs to be installed in the pipeline, the noise of the pipeline is reduced, the silencing effect of the existing silencer is not obvious, and the working environment is still high.

Disclosure of Invention

To the problem that exists among the prior art, the to-be-solved technical problem of the utility model lies in providing a silencer for grain suction machine, the amortization piece of this silencer adopts S type amortization piece, increases the amortization area, can change air current propagation direction moreover, and extension air current propagates the distance, has improved noise elimination effect.

In order to solve the above problem, the utility model adopts the following technical scheme:

a silencer for a grain suction machine comprises a silencer cylinder, a rotating shaft and a silencing sheet, wherein the rotating shaft is fixed on a central axis in the silencer cylinder; the silencing piece is S-shaped, a limiting hole is formed in the center of the silencing piece, and a silencing hole is formed in the silencing piece; the silencing sheet is fixed on the rotating shaft through the limiting hole; and an air inlet pipe and an air outlet pipe are connected to two sides of the silencer cylinder.

The silencer for the grain suction machine is characterized in that the air inlet pipe and the air outlet pipe are fixed on a silencer cylinder body through a third connecting flange and a fourth connecting flange respectively.

The silencer for the grain suction machine is characterized in that a first reducing pipe and a second reducing pipe are arranged at openings on two sides of a silencer cylinder, one end of the first reducing pipe is connected with the silencer cylinder through a first connecting flange, and the other end of the first reducing pipe is connected with an air inlet pipe through a third connecting flange; one end of the second reducing pipe is connected with the silencer cylinder through a second connecting flange, and the other end of the second reducing pipe is connected with the air outlet pipe through a fourth connecting flange.

The silencer for the grain suction machine is characterized in that a silencing sponge layer is arranged on the inner side surface of the silencer barrel.

The silencer for the grain suction machine is characterized in that the silencing sheet is welded and fixed on the rotating shaft through the limiting hole.

The silencer for the grain suction machine is characterized in that an internal thread is arranged on the inner side surface of the limiting hole, an external thread is arranged on the rotating shaft, the internal thread is matched with the internal thread, and the silencing piece is fixed on the rotating shaft through the limiting hole in a threaded connection mode.

The silencer for the grain suction machine is characterized in that the rotating shaft is fixed on a central axis in the silencer cylinder body through a bolt.

Has the advantages that: compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model adopts S-shaped silencing sheet, which increases silencing area, changes airflow transmission direction, prolongs airflow transmission path and improves silencing effect; the number of the silencing pieces on the rotating shaft can be changed according to the noise, when the noise is large, the number of the silencing pieces is increased for increasing the silencing effect, the propagation path of sound waves is greatly increased, the operation is very convenient, and the device is suitable for grain absorbers in different operating environments or grain absorbers with different working strengths.

(2) The utility model discloses set up the reducing pipe in silencer barrel and advance, department wind gap department, make things convenient for the installation of silencer, be suitable for the installation work on the different diameter pipelines.

Drawings

FIG. 1 is a schematic view of a silencer structure for a grain suction machine;

fig. 2 is a schematic structural diagram of the silencing sheet.

Detailed Description

The present invention will be further described with reference to the following specific embodiments.

Example 1

The utility model provides a silencer for grain suction machine, includes silencer barrel 1, pivot 2 and noise reduction piece 3, and on the pivot 2 passed through the bolt fastening at 1 interior central axis of silencer barrel, the mode of bolt fastening can conveniently be dismantled, dismantles the pivot after, can shift out the silencer barrel, carries out cleaning treatment, the life of extension noise reduction piece and silencer to noise reduction piece 3 and the barrel inboard inside the inside. The silencing sheet 3 is S-shaped, the S-shaped silencing sheet is adopted, the silencing area is increased, the airflow propagation direction can be changed, the airflow propagation path is prolonged, and the silencing effect is improved. The center of the silencing piece 3 is provided with the limiting hole 4, the silencing hole is formed in the silencing piece, the silencing piece 3 is fixedly welded on the rotating shaft 2 through the limiting hole 4, the welding and fixing mode is firmer, the use performance of the silencing piece is improved under the operation environment of the grain elevator with high vibration frequency, and the practicability is good; the two sides of the silencer cylinder 1 are connected with an air inlet pipe 8 and an air outlet pipe 12, the air inlet pipe 8 and the air outlet pipe 12 are respectively fixed on the silencer cylinder 1 through a third connecting flange 7 and a fourth connecting flange 11, and the flanges are connected more firmly on the premise of convenient disassembly. Be equipped with one deck amortization sponge layer on the medial surface of silencer barrel 1, the amortization sponge cooperation amortization piece of silencer barrel inboard exert noise cancelling function jointly, increase the noise cancelling effect of silencer.

The utility model discloses the silencer can conveniently be applicable to pneumatic grain elevator pipeline amortization work, and the noise cancelling effect is showing, simple structure, and the suitability is stronger.

Example 2

The utility model provides a silencer for grain suction machine, includes silencer barrel 1, pivot 2 and

noise reduction piece

3, 2 bolt fastening of pivot are on 1 interior central axis of silencer barrel, and the mode of bolt fastening can conveniently be dismantled, dismantle the pivot after, can shift out the silencer barrel, and the noise reduction piece 3 and the barrel inboard cleaning process to the inside, the life of extension noise reduction piece and silencer. The silencing sheet 3 is S-shaped, the S-shaped silencing sheet is adopted, the silencing area is increased, the airflow propagation direction can be changed, the airflow propagation path is prolonged, and the silencing effect is improved. The center of the silencing sheet 3 is provided with a limiting hole 4, and the silencing sheet is provided with a silencing hole; the inner side surface of the limiting hole 4 is provided with an internal thread, the rotating shaft 2 is provided with an external thread, the internal thread is matched with the internal thread, and the silencing piece 3 is fixed on the rotating shaft 2 through the limiting hole 4 in a threaded connection manner; the benefit of threaded connection mode is the dismantlement installation of convenient amortization piece 3 on the one hand, and on the other hand can change the quantity of amortization piece on the pivot according to the noise size, and when the noise is great, for increasing the quantity of amortization piece of noise cancelling effect, greatly increased sound wave propagation distance, it is very convenient to operate, is applicable to the pneumatic grain elevator of different operational environment or the pneumatic grain elevator of different working strength.

The two sides of the silencer cylinder 1 are connected with an air inlet pipe 8 and an air outlet pipe 12. The air inlet pipe 8 and the air outlet pipe 12 are respectively fixed on the muffler cylinder 1 through a third connecting flange 7 and a fourth connecting flange 11. A first reducer pipe 6 and a second reducer pipe 10 are arranged at openings on two sides of the silencer cylinder body 1, one end of the first reducer pipe 6 is connected with the silencer cylinder body 1 through a first connecting flange 5, and the other end of the first reducer pipe is connected with an air inlet pipe 8 through a third connecting flange 7; one end of the second reducer pipe 10 is connected with the muffler cylinder 1 through a second connecting flange 9, and the other end is connected with the air outlet pipe 12 through a fourth connecting flange 11. The reducer pipes are arranged at the positions of the silencer cylinder body 1 and the air inlets and the air outlets, so that the silencer is convenient to mount and is suitable for mounting on pipelines with different diameters.

Be equipped with one deck amortization sponge layer on the medial surface of silencer barrel 1, the amortization sponge cooperation amortization piece of silencer barrel inboard exert noise cancelling function jointly, increase the noise cancelling effect of silencer.

The utility model discloses the silencer can conveniently be applicable to pneumatic grain elevator pipeline amortization work, and the noise cancelling effect is showing, simple structure, and the suitability is stronger. The pneumatic grain elevator can adapt to grain elevators in different operating environments, is suitable for installation of pipelines with different diameters, and has very good practicability.

Claims

1. A silencer for a grain suction machine is characterized by comprising a silencer cylinder body (1), a rotating shaft (2) and a silencing sheet (3), wherein the rotating shaft (2) is fixed on the central axis in the silencer cylinder body (1); the silencing piece (3) is S-shaped, a limiting hole (4) is formed in the center of the silencing piece (3), and silencing holes are formed in the silencing piece; the silencing sheet (3) is fixed on the rotating shaft (2) through a limiting hole (4); and an air inlet pipe (8) and an air outlet pipe (12) are connected to two sides of the silencer cylinder body (1).

2. The silencer for the grain suction machine is characterized in that the air inlet pipe (8) and the air outlet pipe (12) are respectively fixed on the silencer cylinder body (1) through a third connecting flange (7) and a fourth connecting flange (11).

3. The silencer for the grain suction machine is characterized in that a first reducer pipe (6) and a second reducer pipe (10) are arranged at openings on two sides of a silencer cylinder body (1), one end of the first reducer pipe (6) is connected with the silencer cylinder body (1) through a first connecting flange (5), and the other end of the first reducer pipe is connected with an air inlet pipe (8) through a third connecting flange (7); one end of the second reducing pipe (10) is connected with the silencer cylinder body (1) through a second connecting flange (9), and the other end of the second reducing pipe is connected with the air outlet pipe (12) through a fourth connecting flange (11).

4. The silencer for the grain suction machine of claim 1, wherein a silencing sponge layer is arranged on the inner side surface of the silencer cylinder body (1).

5. The silencer for the grain suction machine is characterized in that the silencing sheet (3) is welded and fixed on the rotating shaft (2) through a limiting hole (4).

6. The silencer for the grain suction machine of claim 1, wherein the inner side surface of the limiting hole (4) is provided with an internal thread, the rotating shaft (2) is provided with an external thread, the internal thread is matched with the internal thread, and the silencing plate (3) is fixed on the rotating shaft (2) through the limiting hole (4) in a threaded connection manner.

7. The silencer for the grain suction machine is characterized in that the rotating shaft (2) is fixed on the central axis in the silencer cylinder body (1) through a bolt.