CN109765041B

CN109765041B - Silencer measurement system

Info

Publication number: CN109765041B
Application number: CN201910019181.5A
Authority: CN
Inventors: 刘永平
Original assignee: Zhuhai Guangyuanxin Technology Co ltd
Current assignee: Zhuhai Guangyuanxin Technology Co ltd
Priority date: 2019-01-07
Filing date: 2019-01-07
Publication date: 2021-03-30
Anticipated expiration: 2039-01-07
Also published as: CN109765041A

Abstract

The invention discloses a silencer measuring system which comprises a measuring box, wherein two sides of the bottom of an inner cavity of the measuring box are fixedly connected with supporting columns, a measuring table is fixedly connected between the top ends of the two supporting columns, the top of the measuring table is movably connected with a silencer, two sides of the inner part of the measuring box are fixedly connected with sliding rods, the outer surfaces of the two sliding rods are respectively connected with a first loop bar and a second loop bar in a sliding mode from left to right, and the right end of the first loop bar is fixedly connected with a noise detector. This muffler measurement system utilizes the crank to rotate, and then drives reverse threaded rod and rotate, further drives two screw thread seats and in the both sides side-to-side movement of reverse threaded rod, and indirect inside that drives noise generator and noise detector entering muffler is measured the muffler and is laminated with the muffler, and not only measuring precision is high, and the cost is lower moreover, and the practicality is strong.

Description

Silencer measurement system

Technical Field

The invention relates to the technical field of silencers, in particular to a silencer measuring system.

Background

The silencer is used for the airflow pipeline with noise transmission, and can attenuate or reflect the noise in the pipeline by using noise reduction devices such as pipelines and elbows with sound absorption linings or pipelines with suddenly changed sectional areas and other discontinuous acoustic impedances. The former is called resistive muffler, the latter is called resistive muffler, there is also impedance composite muffling, many kinds of mufflers exist, but the mufflers can be divided into six main types, namely resistive muffler, impedance composite muffler, micro-perforated plate muffler, small hole muffler and active muffler, and most mufflers adopt the impedance composite muffling principle. Due to the reasons of complex structure, heavy weight, high-temperature oxidation sound absorption filler, high-speed airflow impact sound absorption filler, water vapor permeation sound absorption filler and the like, the silencer is easy to have the conditions of frequent maintenance, poor sound attenuation effect, short service cycle and the like. The micro-perforated silencer is designed by combining the most reasonable silencing principle, solves the problems and achieves good effect. The micro-perforated silencer does not use any resistive sound absorption filler, adopts a micro-perforated small-hole multi-cavity structure, and high-pressure airflow enters a cavity body through multiple flow control in the silencer to gradually change the audio frequency of the original airflow. The resistance loss is small, the silencing frequency band is wide, and dust is not generated during working. Is not afraid of oil mist and water vapor. High temperature resistance and high-speed airflow impact resistance.

The silencer is a device which allows airflow to pass through but can prevent or reduce sound transmission, most of the existing silencer measurement systems utilize precise measurement instruments to measure through simulating the working process of the silencer, and the measurement cost is high.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a silencer measuring system, which solves the problem that the existing silencer measuring system is high in measuring cost because the measurement is carried out by simulating the working process of a silencer by using a precise measuring instrument.

In order to achieve the purpose, the invention is realized by the following technical scheme: a silencer measuring system comprises a measuring box, wherein two sides of the bottom of an inner cavity of the measuring box are fixedly connected with supporting columns, a measuring table is fixedly connected between the top ends of the two supporting columns, the top of the measuring table is movably connected with a silencer, two sides of the inside of the measuring box are fixedly connected with sliding rods, the outer surfaces of the two sliding rods are respectively connected with a first loop bar and a second loop bar in a sliding mode from left to right, the right end of the first loop bar is fixedly connected with a noise detector, the left end of the second loop bar is fixedly connected with a noise generator, the surfaces of the first loop bar and the second loop bar are respectively and fixedly connected with a fixing sleeve, a reverse threaded rod is rotatably connected inside the measuring box and is positioned under the first loop bar and the second loop bar, two sides of the surface of the reverse threaded rod are respectively in threaded connection with a threaded seat, and the tops of the two threaded seats are respectively and, and the top of connecting plate and the bottom fixed connection of fixed cover, the right-hand member of reverse threaded rod runs through the measuring box and extends to the outside of measuring the box, the right-hand member fixed connection of reverse threaded rod has the crank.

Preferably, the surfaces of the first loop bar and the second loop bar are fixedly connected with elastic blocking pieces on one sides of the fixed loops.

Preferably, the inside of the measuring box is fixedly connected with a limiting rod which is positioned under the reverse threaded rod, two limiting sleeves are connected to two sides of the surface of the limiting rod in a sliding mode, connecting blocks are fixedly connected to the tops of the limiting sleeves, and the tops of the connecting blocks are fixedly connected with the bottoms of the threaded seats.

Preferably, both sides of the top of the inner cavity of the measuring box are fixedly connected with hydraulic cylinders, an elastic plate is fixedly connected between the output ends of the two hydraulic cylinders, and the bottom of the elastic plate is movably connected with the top of the silencer.

Preferably, the two sides of the top of the measuring box are fixedly connected with vertical plates, and a material placing frame is fixedly connected between the tops of the vertical plates.

Preferably, the surface of the measuring box is rotatably connected with a box door, the surface of the box door is fixedly connected with a handle, and the surface of the box door is fixedly connected with a visible glass window.

Preferably, the bottom of the measuring box is fixedly connected with four bases.

Advantageous effects

The invention provides a silencer measurement system. Compared with the prior art, the method has the following beneficial effects:

(1) the silencer measuring system comprises support columns fixedly connected to two sides of the bottom of an inner cavity of a measuring box, a measuring table fixedly connected between the top ends of the two support columns, a silencer movably connected to the top of the measuring table, slide rods fixedly connected to two sides of the inner part of the measuring box, a first loop bar and a second loop bar respectively connected to the outer surfaces of the two slide rods from left to right in a sliding manner, a noise detector fixedly connected to the right end of the first loop bar, a noise generator fixedly connected to the left end of the second loop bar, a fixed sleeve fixedly connected to the surfaces of the first loop bar and the second loop bar, a reverse threaded rod rotatably connected to the inner part of the measuring box and located under the first loop bar and the second loop bar, threaded seats connected to two sides of the surface of the reverse threaded rod in a threaded manner, connecting plates fixedly connected to the tops of the two threaded seats, and the tops of the connecting plates fixedly connected, the right-hand member of reverse threaded rod runs through the outside of measuring the case and extending to the measuring case, the right-hand member fixedly connected with crank of reverse threaded rod, cooperation through above-mentioned structure, utilize the crank to rotate, and then drive reverse threaded rod and rotate, further drive two screw thread seats and in the both sides side-to-side movement of reverse threaded rod, indirect inside that drives noise generator and noise detector entering muffler is measured the muffler and is laminated with the muffler, not only measuring precision is high, and the cost is lower, therefore, the clothes hanger is strong in practicability.

(2) This muffler measurement system, through the equal fixedly connected with pneumatic cylinder in the both sides at measurement box inner chamber top, fixed connection elastic plate between the output of two pneumatic cylinders, and the bottom of elastic plate and the top swing joint of muffler, through the cooperation of above-mentioned structure, utilize two pneumatic cylinders to drive the elastic plate downstream to make the elastic plate extrude the muffler, fix when being convenient for the muffler is measured, it is effectual to stabilize.

Drawings

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

fig. 2 is a front view of the internal structure of the present invention.

In the figure: 1-measuring box, 2-supporting column, 3-measuring table, 4-silencer, 5-sliding rod, 6-first loop bar, 7-second loop bar, 8-noise detector, 9-noise generator, 10-fixing sleeve, 11-reverse threaded rod, 12-threaded seat, 13-connecting plate, 14-crank, 15-elastic baffle, 16-limiting rod, 17-limiting sleeve, 18-connecting block, 19-hydraulic cylinder, 20-elastic plate, 21-vertical plate, 22-material placing frame, 23-box door, 24-handle, 25-visible glass window, 26-base.

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.

Referring to fig. 1-2, the present invention provides a technical solution: a silencer measuring system comprises a measuring box 1, wherein the bottom of the measuring box 1 is fixedly connected with a base 26, the base 26 plays a role in fixedly supporting the measuring box 1, four bases 26 are arranged, the surface of the measuring box 1 is rotatably connected with a box door 23, the box door 23 can be opened and is used for placing a silencer 4, the surface of the box door 23 is fixedly connected with a handle 24, the surface of the box door 23 is fixedly connected with a visual glass window 25, the visual glass window 25 can be used for observing the internal condition of the silencer 4, two sides of the top of the measuring box 1 are fixedly connected with vertical plates 21, a material placing frame 22 is fixedly connected between the tops of the two vertical plates 21 and is used for placing the silencer 4 to be detected, two sides of the top of an inner cavity of the measuring box 1 are fixedly connected with hydraulic cylinders 19, the hydraulic cylinders 19 are electrically connected with an external power supply, and elastic plates 20 are fixedly connected between, the elasticity of the elastic plate 20 plays a certain role in protecting the silencer 4, the bottom of the elastic plate 20 is movably connected with the top of the silencer 4, a limiting rod 16 is fixedly connected inside the measuring box 1 and located under the reverse threaded rod 11, two sides of the surface of the limiting rod 16 are both slidably connected with limiting sleeves 17, the tops of the two limiting sleeves 17 are both fixedly connected with connecting blocks 18, the top of each connecting block 18 is fixedly connected with the bottom of the threaded seat 12, two sides of the bottom of the inner cavity of the measuring box 1 are both fixedly connected with supporting columns 2, a measuring table 3 is fixedly connected between the top ends of the two supporting columns 2, the top of the measuring table 3 is movably connected with the silencer 4, two sides of the inside of the measuring box 1 are both fixedly connected with sliding rods 5, the outer surfaces of the two sliding rods 5 are respectively slidably connected with a first sleeve rod 6 and a second sleeve rod 7 from left to right, elastic blocking pieces 15 are both fixedly connected on the surfaces of the first sleeve rod, the right end of the first sleeve rod 6 is fixedly connected with a noise detector 8, the left end of the second sleeve rod 7 is fixedly connected with a noise generator 9, the surfaces of the first sleeve rod 6 and the second sleeve rod 7 are both fixedly connected with a fixed sleeve 10, the inside of the measuring box 1 is positioned under the first sleeve rod 6 and the second sleeve rod 7 and is rotatably connected with a reverse threaded rod 11, both sides of the surface of the reverse threaded rod 11 are both in threaded connection with threaded seats 12, the tops of the two threaded seats 12 are both fixedly connected with a connecting plate 13, the top of the connecting plate 13 is fixedly connected with the bottom of the fixed sleeve 10, the right end of the reverse threaded rod 11 penetrates through the measuring box 1 and extends to the outside of the measuring box 1, the right end of the reverse threaded rod 11 is fixedly connected with a crank 14, through the matching of the structures, the crank 14 is utilized to rotate, the reverse threaded rod 11 is further driven to move left on both sides, the indirect inside that drives noise generator 9 and noise detector 8 entering muffler 4 measures muffler 4 and laminates with muffler 4, and not only measuring precision is high, and the cost is lower moreover, and the practicality is strong.

When the device works, firstly, the box door 23 is opened, the silencer 4 is placed on the measuring table 3, then the hydraulic cylinder 19 is started, the elastic plate 20 is driven to move downwards, the elastic plate 20 is driven to clamp and fix the silencer 4, the box door 23 is closed, the crank 14 is rotated at the moment, the reverse threaded rod 11 is driven to rotate, the two threaded seats 12 are driven to move left and right on the surface of the reverse threaded rod 11, the fixing sleeve 10 is driven to move towards one side of the silencer 4 through the connecting plate 13, the first sleeve 6 and the second sleeve 7 are driven to move towards one side of the silencer 4 on the surface of the sliding rod 5, the two elastic blocking pieces 15 are attached to the silencer 4, the noise detector 8 is located on the left side of the inner surface of the silencer 4, the noise generator 9 is located on the right side of the inner surface of the silencer 4, the noise generator 9 and the noise detector 8 are started at the moment, noise generated after the noise generated by the noise generator 9 passes through the silencer 4 The display screen is displayed, and whether the silencer is qualified or not is judged according to the displayed numerical value.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

1. The utility model provides a muffler measurement system, includes measurement case (1), the equal fixedly connected with support column (2) in both sides of measurement case (1) inner chamber bottom, two fixedly connected with measuring station (3) between the top of support column (2), the top swing joint of measuring station (3) has muffler (4), its characterized in that: the measuring box is characterized in that sliding rods (5) are fixedly connected to two sides of the interior of the measuring box (1), the outer surfaces of the two sliding rods (5) are respectively connected with a first loop bar (6) and a second loop bar (7) in a sliding mode from left to right, the right end of the first loop bar (6) is fixedly connected with a noise detector (8), the left end of the second loop bar (7) is fixedly connected with a noise generator (9), the surfaces of the first loop bar (6) and the second loop bar (7) are respectively and fixedly connected with a fixed sleeve (10), a reverse threaded rod (11) is rotatably connected to the interior of the measuring box (1) and is positioned under the first loop bar (6) and the second loop bar (7), threaded seats (12) are respectively and fixedly connected to two sides of the surface of the reverse threaded rod (11), a connecting plate (13) is respectively and fixedly connected to the top of the threaded seats (12), and the top of the connecting plate (13) is fixedly connected to the bottom, the right end of the reverse threaded rod (11) penetrates through the measuring box (1) and extends to the outside of the measuring box (1), and the crank (14) is fixedly connected to the right end of the reverse threaded rod (11).

2. A muffler measurement system as claimed in claim 1, wherein: the surface of the first loop bar (6) and the surface of the second loop bar (7) are fixedly connected with elastic blocking pieces (15) on one side of the fixed loop (10).

3. A muffler measurement system as claimed in claim 1, wherein: the measuring box is characterized in that a limiting rod (16) is fixedly connected to the inside of the measuring box (1) and located under a reverse threaded rod (11), limiting sleeves (17) are connected to the two sides of the surface of the limiting rod (16) in a sliding mode, connecting blocks (18) are fixedly connected to the tops of the limiting sleeves (17), and the tops of the connecting blocks (18) are fixedly connected with the bottoms of threaded seats (12).

4. A muffler measurement system as claimed in claim 1, wherein: the measuring box is characterized in that hydraulic cylinders (19) are fixedly connected to the two sides of the top of an inner cavity of the measuring box (1), an elastic plate (20) is fixedly connected between the output ends of the hydraulic cylinders (19), and the bottom of the elastic plate (20) is movably connected with the top of the silencer (4).

5. A muffler measurement system as claimed in claim 1, wherein: the measuring box is characterized in that vertical plates (21) are fixedly connected to two sides of the top of the measuring box (1), and material placing frames (22) are fixedly connected between the tops of the two vertical plates (21).

6. A muffler measurement system as claimed in claim 1, wherein: the surface of the measuring box (1) is rotatably connected with a box door (23), the surface of the box door (23) is fixedly connected with a handle (24), and the surface of the box door (23) is fixedly connected with a visible glass window (25).

7. A muffler measurement system as claimed in claim 1, wherein: the bottom of the measuring box (1) is fixedly connected with four bases (26), and the number of the bases (26) is four.