CN114589785B - Sleeper concrete vibration molding sound insulation noise reduction device - Google Patents

Sleeper concrete vibration molding sound insulation noise reduction device Download PDF

Info

Publication number
CN114589785B
CN114589785B CN202210284897.XA CN202210284897A CN114589785B CN 114589785 B CN114589785 B CN 114589785B CN 202210284897 A CN202210284897 A CN 202210284897A CN 114589785 B CN114589785 B CN 114589785B
Authority
CN
China
Prior art keywords
sound
sound insulation
channel
layer
sound wave
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.)
Active
Application number
CN202210284897.XA
Other languages
Chinese (zh)
Other versions
CN114589785A (en
Inventor
刘柏松
孙彦龙
韩涛
党法禄
王昱
孙杰
苏晓峰
王建民
郭建英
刘向荣
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.)
Inner Mongolia China Railway Sleeper Manufacturing Co ltd
Original Assignee
Inner Mongolia China Railway Sleeper 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 Inner Mongolia China Railway Sleeper Manufacturing Co ltd filed Critical Inner Mongolia China Railway Sleeper Manufacturing Co ltd
Priority to CN202210284897.XA priority Critical patent/CN114589785B/en
Publication of CN114589785A publication Critical patent/CN114589785A/en
Application granted granted Critical
Publication of CN114589785B publication Critical patent/CN114589785B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B13/042—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/02—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board the layer being formed of fibres, chips, or particles, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/045—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • B32B2262/067—Wood fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/108—Rockwool fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Manufacturing & Machinery (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

The invention discloses a sleeper concrete vibration molding sound insulation noise reduction device, which belongs to the technical field of sleeper production and comprises a sound insulation channel, wherein an inlet and an outlet of the sound insulation channel are respectively provided with a sealing door, the two sealing doors have two working states of opening and closing, and a sleeper model is allowed to enter or leave the sound insulation channel through a roller way when being opened; when the sound insulation channel is closed, the two ends of the sound insulation channel are closed for vibration molding; the sound insulation channel comprises a sound absorption layer, an elastic structure layer and a sound insulation layer from inside to outside, wherein a plurality of sound wave counteracting channels are formed in the elastic structure layer, an inverted sound wave generating device is arranged in the sound wave counteracting channels and is used for generating inverted sound waves, and the frequency amplitude of the inverted sound waves is the same as that of sound waves entering the sound wave counteracting channels, and the phase of the inverted sound waves is opposite to that of sound waves entering the sound wave counteracting channels; the device constructs an independent vibration forming space through the sound insulation channel with a special structure and the sealing doors at two ends, and greatly reduces the transmission of noise through the combination of various forms such as absorption, reverse phase offset, isolation and the like.

Description

Sleeper concrete vibration molding sound insulation noise reduction device
Technical Field
The invention belongs to the technical field of sleeper production, and particularly relates to a sleeper concrete vibration molding sound insulation and noise reduction device.
Background
Prestressed concrete sleepers have been widely popularized and used since 1958, and have been in the past for over sixty years. At present, concrete sleepers are laid nationally throughout the main rail of the nationwide railway. The popularization and use of the concrete sleeper improve the railway design standard, improve the rail quality, save a large amount of wood for the country, and is a great achievement for the railway technical transformation of the country.
At present, the main method for producing the prestressed concrete sleeper in China is a unit flow method, and the process flow comprises the following steps: prestress tensioning of steel wires, proportioning, stirring, pouring, vibrating and curing of concrete; among them, vibration forming is a key process affecting the quality of concrete. In the prior art, the vibration molding or loading vibration molding process is generally operated by a concrete vibration table. However, high-frequency vibration is often required to be carried out on the sleeper to reduce internal microcracking and improve apparent quality, so that noise generated by the vibrating table during working is extremely large, the surrounding environment and physical and mental health of production workers are greatly influenced, and the safety and stability of other surrounding production procedures and the physical health of operators are not facilitated. Therefore, prevention and control of noise are particularly important.
Disclosure of Invention
The invention aims to provide a sleeper concrete vibration molding sound insulation and noise reduction device which solves the problem that the existing sleeper vibration molding noise is large.
The technical scheme adopted by the invention is as follows: a sleeper concrete vibration molding sound insulation noise reduction device comprises a sound insulation channel, wherein one end of the sound insulation channel is provided with an inlet, the other end of the sound insulation channel is provided with an outlet, the inlet and the outlet are respectively provided with a sealing door, the two sealing doors are in an opening working state and a closing working state, and when the two sealing doors are opened, a sleeper model is allowed to enter or leave the sound insulation channel through a roller way; when the sound insulation channel is closed, the two ends of the sound insulation channel are closed for vibration molding.
Further, the sound insulation channel comprises a sound absorption layer, an elastic structure layer and a sound insulation layer from inside to outside, wherein a plurality of sound wave counteracting channels are formed in the elastic structure layer, an inverted sound wave generating device is arranged in the sound wave counteracting channels and is used for generating inverted sound waves, and the frequency amplitude of the inverted sound waves is the same as that of the sound waves entering the sound wave counteracting channels, and the phase of the inverted sound waves is opposite; the transmission of noise is greatly reduced by combining various forms of absorption, reverse phase cancellation, isolation and the like.
Further, the sound absorption layer is made of porous sound absorption materials; the elastic structure layer is made of elastic rubber; the sound insulation layer is made of sound insulation materials; in addition, in a preferred embodiment of the sound insulation layer, the sound insulation layer comprises a gypsum board or fiberboard layer, and the outermost side is entirely coated with a sound insulation felt; the gypsum board or the fiberboard layer and the inner sound-absorbing material clamp and fix the middle elastic structure layer, the position of the elastic structure layer is kept fixed, and the sound-insulating felt is used for integrally covering gaps of the inner structure.
In a preferred embodiment, the acoustic wave cancellation channel consists of a horn-shaped noise receiving channel and a straight tubular acoustic wave generation channel; the elastic structure layer is clung to the outer side of the sound absorption layer, and the noise receiving channel is positioned on one side of the sound absorption layer.
In a preferred embodiment, the inverted sound wave generating device comprises a loudspeaker arranged at the tail end of the sound wave generating channel, and a pickup sensor is arranged in front of the loudspeaker and used for sensing noise signals in the sound wave counteracting channel, and the noise signals are converted into control signals of the loudspeaker through a control circuit.
In a preferred embodiment, the control circuit comprises an A/D conversion module, a processor, a carrier power supply, a frequency modulation and amplitude modulation control circuit and a phase shifter; the sound pickup sensor is connected with the A/D conversion module, the A/D conversion module is connected with the input end of the processor, the output end of the processor is connected with the carrier power supply, the carrier power supply is electrically connected with the frequency modulation and amplitude modulation control circuit, the frequency modulation and amplitude modulation control circuit takes the sound wave signal transmitted by the sound pickup sensor as an adjusting source, the output end of the frequency modulation and amplitude modulation control circuit is connected with the phase shifter, the phase shifter is electrically connected with the output end of the processor, and the output end of the phase shifter is electrically connected with the loudspeaker.
In a preferred embodiment, a sound absorption layer is additionally arranged between the elastic structure layer and the sound insulation layer to further absorb sound.
In a preferred embodiment, the sealing door comprises a door frame, a door plate and a chain transmission device; the door frame is arranged at the inlet and the outlet of the sound insulation channel, and the height of the door frame exceeds that of the sound insulation channel; the waist of the door frame is provided with a cross beam which allows the door plate to pass through; the door plate is vertically arranged in the door frame and penetrates through the cross beam; the left side and the right side of the door plate are provided with groove structures exceeding the door frame, and chains are arranged in the groove structures; the back of the door frame is provided with a transmission shaft, the transmission shaft is connected with the door frame through a bearing seat, two ends of the transmission shaft are respectively provided with a sprocket, and the two sprockets are meshed with chains on two sides of the door frame; one end of the transmission shaft is connected with the motor through the chain transmission device, and the motor drives the door plate to move up and down in the door frame, so that the inlet and the outlet of the sound insulation channel are opened or closed.
The invention has the beneficial effects that: the invention provides a sleeper concrete vibration molding sound insulation and noise reduction device, which constructs an independent vibration molding space through a sound insulation channel with a special structure and sealing doors at two ends, and greatly reduces the transmission of noise through the combination of various forms such as absorption, reverse phase offset, isolation and the like.
Drawings
FIG. 1 is a schematic view of a vibration shaping station located at a position on a roller conveyor line.
Fig. 2 is a schematic perspective view of a sound insulation and noise reduction device of the present invention.
Fig. 3 is a schematic cross-sectional view of the sound insulation channel of example 1.
Fig. 4 is a structural representation of the acoustic cancellation channel.
Fig. 5 is a block diagram of a control circuit for converting a noise signal into a speaker control signal.
Fig. 6 is a schematic cross-sectional view of the acoustical isolation channel of example 2.
Fig. 7 is a front view of the seal door.
Fig. 8 is a rear view of the seal door.
Fig. 9 is a structural representation of the cross beam.
In the figure: roller table 1, sleeper model 2, vibrating table 3, sound insulation passageway 4, sound absorption layer 5, elastic structure layer 6, sound wave offset passageway 601, noise receiving passageway 602, sound wave generation passageway 603, sound insulation layer 7, speaker 8, pickup sensor 9, A/D conversion module 10, processor 11, carrier power supply 12, frequency modulation and amplitude modulation control circuit 13, phase shifter 14, sound insulation felt 15, sealing door 16, door frame 17, crossbeam 18, door plant 19, groove structure 20, chain 21, transmission shaft 22, sprocket 23, chain drive 24, motor 25.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
In the prior art, the main method for producing the prestressed concrete sleeper is a unit flow method, and a sleeper model 2 is conveyed to each station by adopting a roller way 1; as shown in fig. 1, the vibration forming station is located at a certain position on the transmission line of the roller table 1, and a sleeper vibration table 3 is arranged at the certain position; as shown in fig. 2, the invention provides a sleeper concrete vibration molding sound insulation and noise reduction device, wherein a sound insulation channel 4 and sealing doors 16 at two ends of the sound insulation channel form an independent vibration molding space, and a vibration molding station is accommodated in the closed space; the two sealing doors 16 have two working states of opening and closing, and when the two sealing doors are opened, the sleeper model 2 is allowed to be conveyed into the space or leave the space through the roller way 1; when the sound insulation channel is closed, the two ends of the sound insulation channel 4 are closed for vibration molding.
Firstly, as shown in fig. 3, a structural schematic diagram of a sound insulation channel 4 is shown, the sound insulation channel 4 comprises a sound absorption layer 5, an elastic structure layer 6 and a sound insulation layer 7 from inside to outside, wherein a plurality of anti-phase sound wave generating devices are also arranged in the elastic structure layer 6; specifically, the sound absorbing layer 5 is made of a porous sound absorbing material such as organic fiber, inorganic foam, foam plastic, etc., and preferably is made of centrifugal glass cotton or rock cotton or polyester fiber cotton having a thickness of 5cm or more. The elastic structure layer 6 is made of elastic rubber, and has a thickness of preferably more than 10cm, and a plurality of sound wave counteracting channels 601 are formed on the elastic structure layer; as shown in fig. 4, the acoustic wave cancellation channel 601 is composed of a horn-shaped noise receiving channel 602 and a straight tubular acoustic wave generation channel 603; as shown in fig. 3 and 4, the elastic structure layer 6 is disposed closely to the outside of the sound absorbing layer 5, and the noise receiving channel 602 of the sound wave canceling channel 601 is located on the side of the sound absorbing layer 5; as shown in fig. 4, an inverted sound wave generating device is disposed in the sound wave generating channel 603, and the inverted sound wave generating device is used for generating an inverted sound wave, and the frequency and amplitude of the inverted sound wave are the same as those of the sound wave of the noise received by the noise receiving channel 602, and the phase of the inverted sound wave is opposite.
In a specific embodiment, the inverted sound wave generating device includes a speaker 8 disposed at the end of the sound wave generating channel 603, and a pickup sensor 9 disposed in front of the speaker 8, where the pickup sensor 9 is used to sense a noise signal in the sound wave cancellation channel 601, and the noise signal is converted into a control signal of the speaker 8 by a control circuit, so as to control the speaker 8 to generate an inverted sound wave with the same frequency and amplitude and opposite phase to the sound wave of the noise received by the noise receiving channel 602.
An optional control circuit is shown in fig. 5, and comprises an a/D conversion module 10, a processor 11, a carrier power supply 12, a frequency modulation and amplitude modulation control circuit 13 and a phase shifter 14; the sound pickup sensor 9 is connected with the A/D conversion module 10, the A/D conversion module 10 is connected with the input end of the processor 11, the output end of the processor 11 is connected with the carrier power supply 12, the carrier power supply 12 is electrically connected with the frequency modulation and amplitude modulation control circuit 13, the frequency modulation and amplitude modulation control circuit 13 takes the sound wave signal transmitted by the sound pickup sensor 9 as a regulating source, the output end of the sound wave signal is connected with the phase shifter 14, the phase shifter 14 is electrically connected with the output end of the processor 11, and the output end of the phase shifter 14 is electrically connected with the loudspeaker 8.
As shown in fig. 3, the sound insulation layer 7 is arranged outside the elastic structure layer 6, the sound insulation layer 7 is made of sound insulation materials, such as gypsum boards or fiber boards, and in addition, the plurality of layers of sound insulation felts 15 are used for carrying out integral cladding, so that joint gaps are reduced as much as possible.
The above is a basic structure description of the present embodiment, and the shape as shown in fig. 3 may be adopted in specific construction, that is, the section of the sound insulation channel 4 is rectangular; firstly, grooving the periphery of a vibration forming station (as shown in fig. 1), wherein the optimal depth is about 50cm, and a sound insulation channel 4 extends to the underground 50cm to weaken the transmission of noise from the ground; constructing a frame by adopting nonmetallic materials such as wood keels, installing a sound absorption layer 5 on the frame, then installing an elastic structure layer 6 and a reverse sound wave generating device outside the sound absorption layer 5, installing a sound insulation layer 7 at the outermost side, and finally coating by adopting a sound insulation felt 15; as shown in fig. 3, the inverted sound wave generating device forms inverted sound waves from three directions of left, right and upper, and the upper left corner and the upper right corner are plugged with a sound insulating material having a rectangular cross section.
The working principle of the sound insulation and noise reduction of the embodiment 1 is as follows:
noise generated by sleeper vibration is transmitted into the sound absorption layer 5, a part of sound energy rubs with surrounding medium when propagating in the sound absorption layer, the sound energy is converted into heat energy, and the sound energy is lost, namely, a part of noise is absorbed by the sound absorption layer 5; the sound absorption layer 5 can reduce the sound pressure level, but can not absorb the sound completely, and part of noise penetrates through the sound absorption layer 5 and is transmitted into the elastic structure layer 6; the elastic structure layer 6 can continuously consume sound energy through vibration, and in addition, the anti-phase sound wave generating device arranged in the elastic structure layer 6 generates anti-phase sound waves and noise to offset; still some noise can penetrate the elastic structural layer 6 and the outermost sound insulation layer 7 blocks the noise from spreading outwards.
Example 2
As shown in fig. 6, the optimization was continued on the basis of example 1; specifically, in embodiment 1, part of noise still can penetrate through the elastic structural layer 6, so that a sound absorption layer 5 is additionally arranged on the elastic structural layer 6 to further absorb sound, and the outermost layer is still the sound insulation layer 7.
As shown in fig. 7 and 8, a preferred embodiment of the seal door 16 is shown, the seal door 16 comprising a door frame 17, a door panel 19, and a chain drive 24; the door frame 17 is arranged at the inlet and the outlet of the sound insulation channel 4, and the height of the door frame exceeds the sound insulation channel 4; as shown in fig. 9, the waist of the door frame 17 is provided with a cross beam 18 which allows the door panel 19 to pass through; the door plate 19 adopts a structure form that a sound insulation material is clamped in a steel plate, and the door plate 19 is vertically arranged in the door frame 17 and penetrates through the cross beam 18; as shown in fig. 8, the left and right sides of the door plate 19 are provided with a groove structure 20 beyond the door frame 17, a chain 21 is arranged in the groove structure 20, and the upper end and the lower end of the chain 21 are fixedly connected with the groove structure 20; the back of the door frame 17 is provided with a transmission shaft 22, the transmission shaft 22 is connected with the door frame 17 through a bearing seat, two ends of the transmission shaft 22 are respectively provided with a chain wheel 23, and the two chain wheels 23 are meshed with chains 21 on two sides of the door frame 17; one end of the transmission shaft 22 is connected with a motor 25 through a chain transmission device 24, and the chain transmission device 24 and the motor 25 are arranged on the frame. The door panel 19 is driven to move up and down in the door frame 17 by the motor 25, thereby opening or closing the inlet and outlet of the sound insulation passage 4.

Claims (4)

1. A sleeper concrete vibration molding sound insulation noise reduction device is characterized in that: the device comprises a sound insulation channel (4) arranged on a roller way transmission line, wherein one end of the sound insulation channel (4) is provided with an inlet, the other end of the sound insulation channel is provided with an outlet, the inlet and the outlet are respectively provided with a sealing door (16), the sound insulation channel (4) and the sealing doors (16) at the two ends form an independent vibration forming space, and a vibration forming station is accommodated in the sealing space; the two sealing doors (16) are in an opening working state and a closing working state, and when the two sealing doors are opened, the sleeper model (2) is allowed to enter or leave the sound insulation channel (4) through the roller way (1); when the sound insulation channel is closed, two ends of the sound insulation channel (4) are closed for vibration molding; the periphery of the vibration forming station is grooved, and the sound insulation channel (4) extends to the ground; the sound insulation channel (4) comprises a sound absorption layer (5), an elastic structure layer (6) and a sound insulation layer (7) from inside to outside, wherein the sound absorption layer (5) is made of a porous sound absorption material; the elastic structure layer (6) is made of elastic rubber; the sound insulation layer (7) is made of sound insulation materials; wherein a plurality of sound wave counteracting channels (601) are formed in the elastic structure layer (6), and the sound wave counteracting channels (601) consist of a horn-shaped noise receiving channel (602) and a straight tubular sound wave generating channel (603); the elastic structure layer (6) is clung to the outer side of the sound absorption layer (5), and the noise receiving channel (602) is positioned at one side of the sound absorption layer (5); an inverse sound wave generating device is arranged in the sound wave counteracting channel (601), the inverse sound wave generating device comprises a loudspeaker (8) arranged at the tail end of the sound wave generating channel (603), a pickup sensor (9) is arranged in front of the loudspeaker (8), the pickup sensor (9) is used for sensing noise signals in the sound wave counteracting channel (601), and the noise signals are converted into control signals of the loudspeaker (8) through a control circuit; the reverse sound wave generating device is used for generating reverse sound waves, and the reverse sound waves have the same frequency amplitude and opposite phases with sound waves of noise entering the sound wave counteracting channel (601); the section of the sound insulation channel (4) is rectangular; the reverse sound wave generating device forms reverse sound waves from the left, right and upper directions, and the upper left corner and the upper right corner are plugged by adopting sound insulation materials with rectangular sections; the sealing door (16) comprises a door frame (17), a door plate (19) and a chain transmission device (24); the door frame (17) is arranged at the inlet and the outlet of the sound insulation channel (4) and the height of the door frame exceeds the sound insulation channel (4); the waist of the door frame (17) is provided with a cross beam (18) which allows the door plate (19) to pass through; the door plate (19) is vertically arranged in the door frame (17) and penetrates through the cross beam (18); the left side and the right side of the door plate (19) are provided with groove structures (20) which extend out of the door frame (17), and chains (21) are arranged in the groove structures (20); the back of the door frame (17) is provided with a transmission shaft (22), the transmission shaft (22) is connected with the door frame (17) through a bearing seat, two ends of the transmission shaft (22) are respectively provided with a chain wheel (23), and the two chain wheels (23) are meshed with chains (21) at two sides of the door frame (17); one end of the transmission shaft (22) is connected with a motor (25) through a chain transmission device (24), and the motor (25) drives the door plate (19) to move up and down in the door frame (17), so that the inlet and the outlet of the sound insulation channel (4) are opened or closed.
2. The sleeper concrete vibration molding sound insulation and noise reduction device as defined in claim 1, wherein: the sound insulation layer (7) comprises a gypsum board layer or a fiberboard layer, and the outermost side is entirely coated with a sound insulation felt (15).
3. The sleeper concrete vibration molding sound insulation and noise reduction device as defined in claim 1, wherein: the control circuit comprises an A/D conversion module (10), a processor (11), a carrier power supply (12), a frequency modulation and amplitude modulation control circuit (13) and a phase shifter (14); the sound pickup sensor (9) is connected with the A/D conversion module (10), the A/D conversion module (10) is connected with the input end of the processor (11), the output end of the processor (11) is connected with the carrier power supply (12), the carrier power supply (12) is electrically connected with the frequency modulation and amplitude modulation control circuit (13), the frequency modulation and amplitude modulation control circuit (13) takes the sound wave signal transmitted by the sound pickup sensor (9) as an adjusting source, the output end of the sound wave signal is connected with the phase shifter (14), the phase shifter (14) is electrically connected with the output end of the processor (11), and the output end of the phase shifter (14) is electrically connected with the loudspeaker (8).
4. The sleeper concrete vibration molding sound insulation and noise reduction device as defined in claim 1, wherein: and a sound absorption layer (5) is additionally arranged between the elastic structure layer (6) and the sound insulation layer (7).
CN202210284897.XA 2022-03-23 2022-03-23 Sleeper concrete vibration molding sound insulation noise reduction device Active CN114589785B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210284897.XA CN114589785B (en) 2022-03-23 2022-03-23 Sleeper concrete vibration molding sound insulation noise reduction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210284897.XA CN114589785B (en) 2022-03-23 2022-03-23 Sleeper concrete vibration molding sound insulation noise reduction device

Publications (2)

Publication Number Publication Date
CN114589785A CN114589785A (en) 2022-06-07
CN114589785B true CN114589785B (en) 2023-09-22

Family

ID=81811194

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210284897.XA Active CN114589785B (en) 2022-03-23 2022-03-23 Sleeper concrete vibration molding sound insulation noise reduction device

Country Status (1)

Country Link
CN (1) CN114589785B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH106435A (en) * 1996-06-21 1998-01-13 Dainippon Printing Co Ltd Sound insulating sheet and sound insulating metal panel using the same
CN101211558A (en) * 2006-12-28 2008-07-02 海尔集团公司 Active noise reduction method and device
CN102354493A (en) * 2011-05-27 2012-02-15 哈尔滨工程大学 Controllable underwater acoustic board
CN105109122A (en) * 2015-09-18 2015-12-02 贵州大学 Viscoelasticity composite sound insulating board
CN106915310A (en) * 2017-03-16 2017-07-04 天津市浩迪橡塑科技有限公司 Double cavity sound-absorbing material structural damping plates and preparation method thereof
CN206844386U (en) * 2017-06-16 2018-01-05 五经科技有限公司 A kind of wall using noise electrification energy storage
CN112252640A (en) * 2020-11-24 2021-01-22 德清恒嘉装饰材料有限公司 Mute wallboard
CN214424144U (en) * 2020-12-22 2021-10-19 威海瑞合铁路轨枕有限公司 Noise reduction room for concrete sleeper production
CN113715152A (en) * 2021-09-29 2021-11-30 攀枝花学院 Noise reduction device of vibrating table

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH106435A (en) * 1996-06-21 1998-01-13 Dainippon Printing Co Ltd Sound insulating sheet and sound insulating metal panel using the same
CN101211558A (en) * 2006-12-28 2008-07-02 海尔集团公司 Active noise reduction method and device
CN102354493A (en) * 2011-05-27 2012-02-15 哈尔滨工程大学 Controllable underwater acoustic board
CN105109122A (en) * 2015-09-18 2015-12-02 贵州大学 Viscoelasticity composite sound insulating board
CN106915310A (en) * 2017-03-16 2017-07-04 天津市浩迪橡塑科技有限公司 Double cavity sound-absorbing material structural damping plates and preparation method thereof
CN206844386U (en) * 2017-06-16 2018-01-05 五经科技有限公司 A kind of wall using noise electrification energy storage
CN112252640A (en) * 2020-11-24 2021-01-22 德清恒嘉装饰材料有限公司 Mute wallboard
CN214424144U (en) * 2020-12-22 2021-10-19 威海瑞合铁路轨枕有限公司 Noise reduction room for concrete sleeper production
CN113715152A (en) * 2021-09-29 2021-11-30 攀枝花学院 Noise reduction device of vibrating table

Also Published As

Publication number Publication date
CN114589785A (en) 2022-06-07

Similar Documents

Publication Publication Date Title
CN101450642B (en) Passenger car floor with sound insulation and decrease of noise functions
CN200990205Y (en) Conical cavity underwater acoustic board
CN114589785B (en) Sleeper concrete vibration molding sound insulation noise reduction device
CN209053266U (en) A kind of soundproof construction plate
CN210798047U (en) Porous insulation construction of light wallboard
CN101725119B (en) Sound barrier for high-speed railway
CN208501529U (en) A kind of ventilation and pressure release type sound absorption and insulation barrier for high-speed railway
CN211548193U (en) Energy-saving heat-preservation heat-insulation sound-insulation building environment-friendly board
CN216040442U (en) Sound absorbing plate for track, track and noise reduction system
CN212898918U (en) Novel detachable Roots blower sound-proof housing
RU2440467C1 (en) Acoustically comfortable room
CN211229060U (en) Building silencing and sound-insulating dividing wall
CN203769576U (en) Low-frequency sound-insulation door panel
CN209066774U (en) A kind of soundproof plate
CN207846719U (en) A kind of modularization movable type sound arrester
CN216099503U (en) PC component cloth shaking table noise cuts off equipment
RU2425931C1 (en) Production room with low noise level
CN201794031U (en) Side sealing vibration damping structure of sound barrier
CN201512730U (en) Sound-absorption wedge plate for reducing wheel rail noises and tunnel pressure waves
CN213296751U (en) Pressure swing adsorption power equipment spacing sound wall
CN201121371Y (en) Soundproofing inner wall surface
CN219653877U (en) Integral prefabricated sound absorption cover plate
CN210483144U (en) Noise reduction and silencing chamber
CN215472000U (en) Noise reduction and silencing structure for production of prefabricated parts
CN212772922U (en) Sound-insulation noise-reduction wall structure

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
GR01 Patent grant
GR01 Patent grant