CN115157429A - Noise reduction door of shield segment concrete vibration chamber - Google Patents
Noise reduction door of shield segment concrete vibration chamber Download PDFInfo
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- CN115157429A CN115157429A CN202210494705.8A CN202210494705A CN115157429A CN 115157429 A CN115157429 A CN 115157429A CN 202210494705 A CN202210494705 A CN 202210494705A CN 115157429 A CN115157429 A CN 115157429A
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- sound insulation
- curtain
- electromagnet
- shaft
- noise reduction
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- 238000009413 insulation Methods 0.000 claims abstract description 80
- 238000003825 pressing Methods 0.000 claims abstract description 41
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000741 silica gel Substances 0.000 claims abstract description 15
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 15
- 239000000725 suspension Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000010521 absorption reaction Methods 0.000 claims description 18
- 239000011796 hollow space material Substances 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000010276 construction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
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- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin 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
- 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
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a noise reduction door of a shield segment concrete vibration chamber, which comprises a suspension pressing device arranged above a cross beam of the vibration chamber, wherein a sound insulation curtain is suspended on the suspension pressing device, an edge sealing structure is arranged below the sound insulation curtain, the edge sealing structure comprises high-elasticity silica gel which is tightly connected with the ground, the top surface of a steel rail, the waist of the steel rail and the top surface and the side surface of a conveyor belt protection frame, the internal top surfaces of the high-elasticity silica gel, the steel rail and the conveyor belt protection frame, which are contacted, are respectively provided with a horizontal electromagnet, steel structure door posts at two sides of the sound insulation curtain are respectively provided with a buckling plate, the buckling plates are vertically pressed outside the sound insulation curtain by a plurality of pressing devices, each pressing device comprises an L-shaped fixing frame, a through hole is arranged on each L-shaped fixing frame, an electromagnet fixedly connected with the buckling plates is arranged in the through hole, and the electromagnet is fixedly connected with a tension spring fixing piece arranged outside the through hole of the L-shaped fixing frame through a tension spring. The invention has simple structure, and can thoroughly reduce or eliminate sound insulation dead angles, thereby ensuring the sound insulation effect and reducing the intensity of the noise transmitted outside.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a noise reduction door of a shield segment concrete vibration chamber.
Background
In a subway shield segment prefabrication production line, after concrete pouring operation in a segment mould is completed, a high-frequency vibrating table is needed to carry out strong vibration on the segment mould. Through strong vibration, gas and free water in the concrete are discharged, so that the compactness of the concrete meets the quality requirement. When concrete is poured, a method of distributing materials in three layers is adopted, namely when the concrete is poured to the lower part of the middle core rod hole, the material is stopped, vibrated and exhausted for 20 to 40 seconds; continuously pouring until the position is about 8cm below a feed opening of the mold, stopping feeding, vibrating and exhausting for 20-40 seconds; finally, after the pouring is finished, weak vibration (half of the pneumatic motors are closed and the remaining half of the motors are kept in a half-open state) is used for 30-60 seconds. In the pouring process, in order to ensure uniform material distribution, the pouring speed is controlled to be 0.5m 3 And the vibration exhaust time can be properly adjusted according to the working performance of the concrete.
In order to reduce the noise hazard caused by concrete vibration, the most common solution is to place a vibration table in a single closed vibration chamber, as shown in fig. 8, the vibration chamber is a transparent room, and a cross beam with a surface riveted with an iron plate is arranged above a door frame, however, in view of the fact that a production line generally needs to transport by a rail, for example, a mold and the like are transported by a rail trolley (a driving device is installed in a conveyor belt protection frame) running on a steel rail, the steel rail and the rail have certain particularity, and complete sealing of the bottom of a shield door is difficult to realize, so that the noise intensity control effect is seriously affected.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the noise reduction door of the shield segment concrete vibrating chamber, which has a simple structure and can thoroughly reduce or eliminate sound insulation dead angles, thereby ensuring the sound insulation effect and reducing the noise harm brought by concrete vibration to the maximum extent.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a shield constructs section of jurisdiction concrete vibration room door of making an uproar falls, is including setting up the suspension closing device in vibration room crossbeam top, hang the sound insulation curtain that shelters from the vibration room on the closing device, the below of sound insulation curtain is provided with the banding structure, and the rail web of rail closely bonds the rubber piece beside the rail, the banding structure include with ground, rail top surface, the rubber piece beside the rail and conveyer belt fender frame top surface and the equal airtight high elasticity silica gel of side, the inside top surface that high elasticity silica gel and rail and conveyer belt fender frame contact is provided with horizontal electro-magnet respectively, be provided with the cramp plate on the steel construction gatepost of sound insulation curtain both sides respectively, the cramp plate is vertically pressed in the sound insulation curtain outside by a plurality of closing device, closing device is including the L type mount that fixed set up on the steel construction gatepost, be provided with the through-hole on the L type mount and be provided with the cylinder electro-magnet with cramp plate fixed connection in the through-hole, the cylinder electro-magnet passes through the extension spring fixed connection that sets up in the L type mount through-hole outside.
The technical scheme of the invention is further improved as follows: hang closing device including the curtain axle that is used for hanging the sound insulation curtain with set up in the pressure curtain axle and the curtain axle in the sound insulation curtain outside and press curtain axle parallel arrangement, the fixed bearing frame that is provided with in vibration chamber crossbeam both ends, be provided with on the bearing frame with the circular curtain axle hole that the curtain axle cooperation was used and press the curtain axle hole with the long circle that the cooperation of pressure curtain axle was used, long circle is pressed curtain axle hole both ends and is provided with first semi-circular electro-magnet and the semi-circular electro-magnet of second respectively, the distance between the semi-circular electro-magnet of second and the vibration chamber crossbeam is 2/3 of sound insulation curtain thickness, the distance between first semi-circular electro-magnet and the sound insulation curtain is 5 ~ 10mm, circular curtain axle hole and long circle are pressed curtain axle hole central line and horizontal contained angle a and are 30 ~ 45, the axle head is equallyd divide at the both ends of curtain axle, pressure curtain axle, be provided with control curtain axle pivoted gear motor between the bearing frame of curtain axle one end and the axle head.
The technical scheme of the invention is further improved as follows: and bearings are arranged among the curtain shaft, the curtain pressing shaft and the bearing seats.
The technical scheme of the invention is further improved as follows: the sound insulation curtain comprises a sound absorption hollow material layer, a connecting layer, a damping layer, a bearing layer and a sound absorption hollow material layer which are sequentially bonded, wherein the sound absorption hollow material layer faces to the sound source direction, and the thickness of the sound insulation curtain is 10-20 mm.
The technical scheme of the invention is further improved as follows: the sound absorption hollow material layer is made of soft rubber with the thickness of 4-6 mm and is densely distributed with penetrating small holes, the shock absorption layer is made of soft plastic with the thickness of 3-5 mm, the sound absorption hollow material layer and the shock absorption layer are bonded through a connecting layer made of hard plastic, and the force bearing layer is made of soft rubber with the thickness of 2-4 mm.
The technical scheme of the invention is further improved as follows: the high-elasticity silica gel is equal in thickness to the sound-proof curtain and is woven into a whole with the sound-proof curtain.
The technical scheme of the invention is further improved as follows: and a through hole for the electric wire of the electromagnet to pass through is formed in the tension spring fixing piece.
The technical scheme of the invention is further improved as follows: the diameter of the cylindrical electromagnet is 1-2 mm smaller than the diameter of the through hole of the L-shaped fixing frame.
The technical scheme of the invention is further improved as follows: and the electric wire of the cylindrical electromagnet penetrates through the gap between the buckling plate and the L-shaped fixing frame.
The technical scheme of the invention is further improved as follows: and lubricating oil is smeared on the outer surface of the cylindrical electromagnet.
Due to the adoption of the technical scheme, the invention has the technical progress that:
1. the invention has simple structure, and can thoroughly reduce or eliminate sound insulation dead angles by carrying out sound insulation and noise reduction on the upper, the lower, the left and the right sides of the vibration chamber, thereby ensuring the sound insulation effect, reducing the intensity of transmitted external noise and reducing the noise harm caused by concrete vibration to the maximum extent;
2. the sound insulation curtain has good sound insulation effect, can bear repeated rolling and folding operations, and has long service life;
3. the measures adopted by the invention for sound insulation and noise reduction below the vibration chamber are as follows: the horizontal electromagnet plays a role in further compressing when the edge sealing structure is closely connected with the ground, the top surface of the steel rail, the rubber blocks beside the rail and the top surface and the side surface of the conveyor belt protection frame, so that sound insulation dead angles are reduced;
4. the measures adopted by the invention for sound insulation and noise reduction on the left and right sides of the vibration chamber are as follows: the cylindrical electromagnet is used for controlling the pressing plate to press or release the sound insulation screen, so that the air tightness is strong, and the sound insulation effect is good;
5. the measures adopted by the invention for sound insulation and noise reduction above the vibration chamber are as follows: the control of the curtain pressing shaft is realized by utilizing the first semicircular electromagnet and the second semicircular electromagnet which are arranged in the oblong curtain pressing shaft hole, when the speed reducing motor is electrified, the first semicircular electromagnet is electrified at the same time, the second semicircular electromagnet is powered off, the curtain pressing shaft is sucked away by the first semicircular electromagnet, at the moment, the gap between the curtain pressing shaft and the sound insulation curtain is increased, and the sound insulation curtain is smoothly opened and closed; when the sound insulation curtain falls to the bottom, the first semicircular electromagnet is powered off and the second semicircular electromagnet is powered on, the sound insulation curtain pressing shaft is sucked away by the second semicircular electromagnet, the sound insulation curtain above is pressed tightly by the sound insulation curtain pressing shaft, and the sound insulation effect is good;
6. the fastening pressing plate, the pressing device for pressing the fastening pressing plate and the curtain pressing shaft are used for guiding the sound insulation curtain, so that the sound insulation curtain is guaranteed to be smoothly opened and closed.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of the overall structure of the present invention;
FIG. 3 is a schematic view of the construction of the hanging hold-down device of the present invention;
FIG. 4 is a schematic view of the bearing housing of the present invention;
FIG. 5 is a schematic view of the sound screen construction of the present invention;
FIG. 6 is a schematic view of the state of the clincher plate of the present invention pressing against the sound screen;
FIG. 7 is a schematic view of the present invention with the hold-down plate releasing the sound screen;
FIG. 8 is a schematic view of a prior art vibrating chamber door frame;
the device comprises a vibration chamber beam 1, a vibration chamber beam 2, a suspension pressing device 2-1, a curtain shaft 2-2, a bearing seat 2-3, a shaft end 2-4, a speed reducing motor 2-5, a curtain pressing shaft 2-6, a circular curtain shaft hole 2-7, a long circular curtain pressing shaft hole 2-8, a first semicircular electromagnet 2-9, a second semicircular electromagnet 3, a sound insulation curtain 3-1, a sound absorption hollow material layer 3-2, a connecting layer 3-3, a damping layer 3-4, a force bearing layer 4, an edge sealing structure 5, a steel rail 6, a conveyor belt protection frame 7, high-elasticity silica gel 8, a horizontal electromagnet 9, a steel structure door column 10, a buckling plate 11, a pressing device 11-1, an L-shaped fixing frame 11-2, a cylindrical electromagnet 11-3, a tension spring 11-4, a tension spring fixing piece 12 and a rubber block beside the rail.
Detailed Description
The present invention is further illustrated in detail below with reference to examples:
as shown in fig. 1, a shield constructs section of jurisdiction concrete vibration room and falls door of making an uproar, including setting up in the suspension closing device 2 of vibration room crossbeam 1 top, hang the sound insulation curtain 3 that shelters from the vibration room on the closing device 2, the below of sound insulation curtain 3 is provided with banding structure 4, banding structure 4 includes high elasticity silica gel 7, high elasticity silica gel 7 and sound insulation curtain 3 uniform thickness just weave into a whole with sound insulation curtain 3, guarantee that no gap is left between high elasticity silica gel 7 and the sound insulation curtain 3. Horizontal electromagnets 8 are respectively arranged on the inner top surfaces of the high-elasticity silica gel 7, which are contacted with the steel rail 5 and the conveyor belt protection frame 6. The rail 5 is closely adhered with the rubber blocks 12 beside the rail. After the sound insulation screen 3 is put down, the horizontal electromagnet 8 plays a role in further compressing when the high-elasticity silica gel 7 is tightly connected with the ground, the top surface of the steel rail 5, the rubber block 12 beside the rail and the top surface and the side surface of the conveyor belt protection frame 6.
As shown in fig. 2 to 4, the suspension compressing device 2 comprises a curtain shaft 2-1 for suspending the sound insulation curtain 3 and a curtain pressing shaft 2-5 arranged outside the sound insulation curtain 3, the curtain shaft 2-1 and the curtain pressing shaft 2-5 are arranged in parallel, two ends of a cross beam 1 of the vibration chamber are fixedly provided with bearing seats 2-2, the bearing seats 2-2 are provided with circular curtain shaft holes 2-6 matched with the curtain shaft 2-1 and oblong curtain pressing shaft holes 2-7 matched with the curtain pressing shaft 2-5, two ends of the oblong curtain pressing shaft holes 2-7 are respectively provided with first semicircular electromagnets 2-8 and second semicircular electromagnets 2-9, the distance between the second semicircular electromagnets 2-9 and the cross beam 1 of the vibration chamber is 2/3 of the thickness of the sound insulation curtain 3, the distance between the first semicircular electromagnets 2-8 and the sound insulation curtain 3 is 5-10 mm, the central connecting line of the circular curtain shaft holes 2-6 and the oblong curtain pressing shaft holes 2-7 is 30-45 degrees with the horizontal a, two ends of the curtain pressing shaft 2-5 are respectively provided with a limiting shaft 2-1 and a limiting shaft for controlling the rotation of the curtain shaft and the sound insulation curtain shaft 2-3, and a motor for controlling the opening and closing of the curtain shaft and the opening direction of the bearing seats 2-3, and the sound insulation curtain shaft, and the rotating direction of the motor.
According to the invention, the control of the pressure curtain shaft 2-5 is realized by utilizing the first semicircular electromagnet 2-8 and the second semicircular electromagnet 2-9 which are arranged in the oblong pressure curtain shaft hole 2-7, when the speed reduction motor 2-4 is electrified, the first semicircular electromagnet 2-8 is electrified at the same time, the second semicircular electromagnet 2-9 is powered off, the pressure curtain shaft 2-5 is sucked away by the first semicircular electromagnet 2-8, at the moment, the gap between the pressure curtain shaft 2-5 and the sound insulation curtain 3 is increased, and the sound insulation curtain 3 is opened and closed smoothly; when the sound insulation screen 3 falls to the bottom, the first semicircular electromagnets 2-8 are powered off, the second semicircular electromagnets 2-9 are powered on, the screen pressing shafts 2-5 are sucked away by the second semicircular electromagnets 2-9, the sound insulation screen 3 above is pressed by the screen pressing shafts 2-5, and the sound insulation effect is good.
As shown in figure 5, the sound-proof screen 3 comprises a sound-absorbing hollow material layer 3-1, a connecting layer 3-2, a shock-absorbing layer 3-3 and a force-bearing layer 3-4 which are sequentially bonded, the sound-absorbing hollow material layer 3-1 faces to the direction of a sound source, and the thickness of the sound-proof screen 3 is 10-20 mm. The sound absorption hollow material layer 3-1 is made of soft rubber with the thickness of 4-6 mm and is densely distributed with small penetrating holes, the shock absorption layer 3-3 is made of soft plastic with the thickness of 3-5 mm, the sound absorption hollow material layer 3-1 and the shock absorption layer 3-3 are bonded through a connecting layer 3-2 made of hard plastic, and the force bearing layer 3-4 is made of soft rubber with the thickness of 2-4 mm and can bear repeated rolling and folding operations.
The steel structure doorposts 9 on both sides of the sound-proof screen 3 are respectively provided with a buckling plate 10, and the structure thereof is shown in fig. 6 and 7, wherein fig. 6 shows a state that the buckling plate 10 compresses the sound-proof screen 3, and fig. 7 shows a state that the buckling plate 10 loosens the sound-proof screen 3. The buckling plate 10 is made of high-strength light insulating material and is vertically arranged outside the sound-proof curtain by a plurality of pressing devices 11. The pressing device 11 comprises an L-shaped fixing frame 11-1 fixedly arranged on the steel structure doorpost 9, a through hole is formed in the L-shaped fixing frame 11-1, a cylindrical electromagnet 11-2 fixedly connected with the buckling plate 10 is arranged in the through hole, the diameter of the cylindrical electromagnet 11-2 is smaller than that of the through hole of the L-shaped fixing frame 11-1 by 1-2 mm, and the outer surface of the cylindrical electromagnet 11-2 is coated with lubricating oil to reduce the moving resistance. The cylindrical electromagnet 11-2 is fixedly connected with a tension spring fixing piece 11-4 arranged outside the through hole of the L-shaped fixing frame 11-1 through a tension spring 11-3. No matter whether the tension spring is electrified or not, the tension spring 11-3 is always in a tension state. The electric wire of the cylindrical electromagnet 11-2 penetrates through a through hole arranged on the tension spring fixing piece 11-4 or penetrates through a gap between the buckling plate 10 and the L-shaped fixing frame 11-1, the buckling plate 10 and the curtain pressing shaft 2-5 are used for guiding the sound insulation curtain 3.
The cylindrical electromagnet 11-2 loses magnetic force when power is off, but the tension of the tension spring 11-3 is larger at the moment, so that the distance between the buckling plate 10 and the sound insulation screen 3 is controlled within the range of 2-10 mm, and the cylindrical electromagnet 11-2 with the buckling plate 10 is pulled away from the sound insulation screen 3, thereby realizing the closing or opening of the sound insulation screen 3.
After the sound-proof curtain 3 is put down in place, the cylindrical electromagnet 11-2 generates suction to the steel structure door post 9 on the door frame, and the sound-proof curtain 3 is further pressed on the steel structure door post 9.
The using method comprises the following steps:
after the rail trolley conveys the mould to the vibrating chamber and the concrete is poured, an operator presses the pressure drop curtain button to enable the curtain shaft 2-1 to rotate under the driving of the speed reducing motor 2-4, at the moment, the first semicircular electromagnet 2-8 is powered on simultaneously, the second semicircular electromagnet 2-9 is powered off, the pressure curtain shaft 2-5 is sucked away by the first semicircular electromagnet 2-8, and at the moment, the gap between the pressure curtain shaft 2-5 and the sound insulation curtain 3 is increased, so that the sound insulation curtain 3 is placed smoothly. The speed reducing motors 2-4 with different speed ratios are selected according to the requirement of the lifting speed so as to achieve the required lifting speed of more than 0.5 m/s. The control screen shaft 2-1 can realize slow start and stop during operation and can realize automatic stop after reaching a corresponding position. When the sound insulation curtain 3 is lowered to the lowest point, the horizontal electromagnet 8 is automatically electrified and adsorbed on the top surface of the steel rail 5 and the top surface of the conveyor belt protection frame 6, so that the high-elasticity silica gel 7 is ensured to be tightly connected with the ground, the top surface of the steel rail 5, the rubber block 12 beside the rail and the top surface and the side surface of the conveyor belt protection frame 6. The cylindrical electromagnet 11-2 is then energized to press the retainer plate 10 against the sound-insulating screen 3. Meanwhile, the first semicircular electromagnets 2-8 are powered off, the second semicircular electromagnets 2-9 are powered on, the screen pressing shafts 2-5 are sucked away by the second semicircular electromagnets 2-9, the upper sound insulation screen 3 is pressed by the screen pressing shafts 2-5, and at the moment, the inside and the outside of the vibration chamber are in a sound insulation state.
After the vibration work is finished, the horizontal electromagnet 8 and the cylindrical electromagnet 11-2 are automatically powered off and demagnetized at the same time, and the sound insulation curtain 3 is in a loose state. At the moment, the speed reduction motor 2-4 drives the curtain shaft 2-1 to rotate, the sound insulation curtain 3 is lifted, and after the sound insulation curtain is lifted in place, the rail trolley continuously conveys the mold into the vibration chamber.
Claims (10)
1. The utility model provides a shield constructs section of jurisdiction concrete vibration room door of making an uproar falls which characterized in that: the device comprises a suspension pressing device (2) arranged above a cross beam (1) of a vibration chamber, a sound insulation screen (3) for shielding the vibration chamber is suspended on the suspension pressing device (2), an edge sealing structure (4) is arranged below the sound insulation screen (3), the rail waist of a steel rail (5) is tightly bonded with a rail-side rubber block (12), the edge sealing structure (4) comprises a high-elasticity silica gel (7) tightly connected with the ground, the rail top surface of the steel rail (5), the rail-side rubber block (12) and the top surface and the side surface of a conveyor belt protection frame (6) in a sealing manner, the internal top surfaces of the high-elasticity silica gel (7) in contact with the steel rail (5) and the conveyor belt protection frame (6) are respectively provided with a horizontal electromagnet (8), steel structure door columns (9) at two sides of the sound insulation screen (3) are respectively provided with a buckling plates (10), the buckling plates (10) are vertically pressed on the outer sides of the sound insulation screen (3) by a plurality of pressing devices (11), the buckling plates (11), the pressing devices (11) comprise L-shaped fixing frames (11-1) fixedly arranged on the steel structure door columns (9), the L-shaped fixing frames (11-1) and the L-shaped fixing frames (11-1) fixedly arranged on which are provided with through holes, the through which are connected with the cylindrical fixing frames (11) and are connected with the L-shaped electromagnets (11-shaped fixing frames (11) and the L-1) and the cylindrical fixing frames (11) connected with the L-shaped electromagnets (11), the fixing frames (11) and the L-shaped electromagnets (11) and the cylindrical fixing frames (2) connected with the through tension springs (11-11) and the fixing frames (11-11) and the tension springs (11) and the fixing frames (11) fixedly arranged outside the L-shaped electromagnets (11) respectively, the tension springs (11-1) 4).
2. The shield segment concrete vibration chamber noise reduction door according to claim 1, characterized in that: the suspension pressing device (2) comprises a curtain shaft (2-1) for suspending the sound insulation curtain (3) and a pressure curtain shaft (2-5) arranged outside the sound insulation curtain (3) and parallel arrangement of the curtain shaft (2-1) and the pressure curtain shaft (2-5), two ends of a vibration chamber beam (1) are fixedly provided with bearing seats (2-2), circular curtain shaft holes (2-6) used with the curtain shaft (2-1) in a matched manner and oblong pressure curtain shaft holes (2-7) used with the pressure curtain shaft (2-5) in a matched manner are arranged on the bearing seats (2-2), two ends of the oblong pressure curtain shaft holes (2-7) are respectively provided with a first semicircular electromagnet (2-8) and a second semicircular electromagnet (2-9), the distance between the second semicircular electromagnet (2-9) and the vibration chamber beam (1) is 2/3 of the thickness of the sound insulation curtain shaft holes (3), the distance between the first semicircular electromagnet (2-8) and the sound insulation curtain shaft (3) is 5-10 mm, the distance between the circular curtain shaft holes (2-6) and the vibration chamber beam (1) is equal to 2-7), and the horizontal included angle between the two ends of the pressure curtain shaft (2-5 a) and 2-5 a horizontal included angle (1) is formed between the pressure curtain shaft (2-5), and a speed reduction motor (2-4) for controlling the rotation of the screen shaft (2-1) is arranged between the bearing seat (2-2) at one end of the screen shaft (2-1) and the shaft end (2-3).
3. The shield segment concrete vibration chamber noise reduction door according to claim 2, characterized in that: bearings are arranged among the curtain shaft (2-1), the pressure curtain shaft (2-5) and the bearing seat (2-2).
4. The shield segment concrete vibration chamber noise reduction door according to claim 1, characterized in that: the sound insulation curtain (3) comprises a sound absorption hollow material layer (3-1), a connecting layer (3-2), a damping layer (3-3), a bearing layer (3-4) and a sound absorption hollow material layer (3-1) which are sequentially bonded, wherein the sound insulation curtain (3) is 10-20 mm in thickness.
5. The shield segment concrete vibration chamber noise reduction door according to claim 4, characterized in that: the sound absorption hollow material layer (3-1) is made of soft rubber with the thickness of 4-6 mm and is densely distributed with penetrating small holes, the shock absorption layer (3-3) is made of soft plastic with the thickness of 3-5 mm, the sound absorption hollow material layer (3-1) and the shock absorption layer (3-3) are bonded through a connecting layer (3-2) made of hard plastic with the thickness of 1-5 mm, and the bearing layer (3-4) is made of soft rubber with the thickness of 2-4 mm.
6. The shield segment concrete vibration chamber noise reduction door according to claim 1, characterized in that: the high-elasticity silica gel (7) and the sound insulation curtain (3) are equal in thickness and are woven into a whole with the sound insulation curtain (3).
7. The shield segment concrete vibrating chamber noise reduction door according to claim 1, characterized in that: the tension spring fixing piece (11-4) is provided with a through hole for the electric wire of the cylindrical electromagnet (11-2) to pass through.
8. The shield segment concrete vibrating chamber noise reduction door according to claim 1, characterized in that: the diameter of the cylindrical electromagnet (11-2) is 1-2 mm smaller than that of the through hole of the L-shaped fixing frame (11-1).
9. The shield segment concrete vibrating chamber noise reduction door according to claim 8, characterized in that: and the electric wire of the cylindrical electromagnet (11-2) penetrates through the gap between the buckling plate (10) and the L-shaped fixing frame (11-1).
10. The shield segment concrete vibrating chamber noise reduction door according to claim 1, characterized in that: and lubricating oil is smeared on the outer surface of the cylindrical electromagnet (11-2).
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| CN202210494705.8A CN115157429B (en) | 2022-05-07 | 2022-05-07 | Noise reduction door of shield segment concrete vibrating chamber |
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| CN202210494705.8A CN115157429B (en) | 2022-05-07 | 2022-05-07 | Noise reduction door of shield segment concrete vibrating chamber |
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| CN115157429A true CN115157429A (en) | 2022-10-11 |
| CN115157429B CN115157429B (en) | 2023-07-14 |
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| GB9226991D0 (en) * | 1992-12-24 | 1993-02-17 | R T Research & Dev Limited | A process for preparing a ware |
| RU2451620C1 (en) * | 2011-03-18 | 2012-05-27 | Олег Савельевич Кочетов | Low-noise ship cabin |
| CN105003431A (en) * | 2015-08-10 | 2015-10-28 | 中建八局第一建设有限公司 | Concrete pump sound-absorbing cover |
| JP2020084698A (en) * | 2018-11-30 | 2020-06-04 | 株式会社安藤・間 | Magnetic attractive soundproof sheet, and sound insulation method using the soundproof sheet |
| KR102122827B1 (en) * | 2020-02-25 | 2020-06-15 | 김선옥 | Protection against wind for bus station |
| CN113417552A (en) * | 2021-08-04 | 2021-09-21 | 天长市远洋船舶设备有限公司 | Marine soundproof choke |
| CN215618771U (en) * | 2021-05-18 | 2022-01-25 | 中铁十四局集团房桥有限公司 | Sound insulation room in section of jurisdiction production |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9226991D0 (en) * | 1992-12-24 | 1993-02-17 | R T Research & Dev Limited | A process for preparing a ware |
| RU2451620C1 (en) * | 2011-03-18 | 2012-05-27 | Олег Савельевич Кочетов | Low-noise ship cabin |
| CN105003431A (en) * | 2015-08-10 | 2015-10-28 | 中建八局第一建设有限公司 | Concrete pump sound-absorbing cover |
| JP2020084698A (en) * | 2018-11-30 | 2020-06-04 | 株式会社安藤・間 | Magnetic attractive soundproof sheet, and sound insulation method using the soundproof sheet |
| KR102122827B1 (en) * | 2020-02-25 | 2020-06-15 | 김선옥 | Protection against wind for bus station |
| CN215618771U (en) * | 2021-05-18 | 2022-01-25 | 中铁十四局集团房桥有限公司 | Sound insulation room in section of jurisdiction production |
| CN113417552A (en) * | 2021-08-04 | 2021-09-21 | 天长市远洋船舶设备有限公司 | Marine soundproof choke |
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| CN115157429B (en) | 2023-07-14 |
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