Elevator guide rail noise reduction device based on composite damping core plate

Abstract

This utility model relates to the field of elevator technology, and more particularly to an elevator guide rail noise reduction device based on a composite vibration damping core plate. The device includes an elevator guide rail, inner support plates, mounting plates, fasteners, oil supply pipes, and a composite vibration damping core plate. Several inner support plates are installed side-by-side in the elevator guide rail, and are connected to the mounting plates by fasteners. Oil supply pipes for supplying oil are installed in the inner support plates. The composite vibration damping core plate is clamped between the inner support plates and the mounting plates. The composite vibration damping core plate consists of an aluminum honeycomb perforated sound-absorbing plate in the center and flat viscoelastic dampers on both sides. In this utility model, the composite vibration damping core plate not only has vibration damping function but also a sound-absorbing structure, effectively absorbing and reducing the vibration and noise generated during elevator operation. This utility model can supply oil to the contact area between the elevator guide rail and the slider, achieving a lubrication function and reducing wear between components.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to an elevator guide rail noise reduction device based on a composite vibration damping core plate. Background Technology

[0002] As modern architecture evolves towards high-rise buildings, the structural relationship between elevator shafts and the main building structure is becoming increasingly close. To optimize space utilization and reduce shared costs, the distance between elevator shafts and building walls is constantly decreasing, even leading to designs where structures share walls. Simultaneously, increased elevator speeds intensify guide rail vibrations. This mechanical vibration, transmitted through rigid connections, creates solid-borne sound, causing noise pollution in adjacent spaces. To address this issue, the industry currently widely employs vibration-damping brackets as a solution. These brackets use elastic connections to block vibration transmission paths, effectively controlling elevator operating noise.

[0003] A search revealed that patent specification CN218860090U discloses an elevator guide rail vibration damping device, comprising a housing formed by the cooperation of a front shell and a rear shell; a vibration damping core plate is disposed inside the housing, and vibration damping pads are disposed between the vibration damping core plate and the housing; the core plate divides the housing into multiple parts, and the vibration damping pads are distributed in different positions of the housing; the vibration damping core plate is connected to the elevator shaft, and the housing is connected to the elevator guide rail. This elevator guide rail vibration damping device can absorb vibration energy in two directions, increasing vibration damping performance, preventing rigid collisions between the vibration damping core plate and the housing, and preventing vibrations generated by the housing from being directly transmitted to the elevator shaft, thus improving the vibration damping effect.

[0004] The aforementioned elevator guide rail noise reduction device still has shortcomings in use. First, its vibration damping core plate is a single-layer structure and lacks its own sound-absorbing structure, resulting in an unsatisfactory vibration damping and noise reduction effect. Second, it lacks lubrication function, making its function limited. Therefore, it is necessary to optimize and improve the existing elevator guide rail noise reduction device. Summary of the Invention

[0005] The purpose of this invention is to overcome the aforementioned problems in traditional technologies and provide an elevator guide rail noise reduction device based on a composite vibration damping core plate.

[0006] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution: This embodiment provides an elevator guide rail noise reduction device based on a composite vibration damping core plate, including an elevator guide rail, inner support plates, mounting plates, fasteners, oil supply pipes, and a composite vibration damping core plate. Several inner support plates are installed side by side in the elevator guide rail. The inner support plates are connected to the mounting plates by fasteners. An oil supply pipe for supplying oil to the inner support plates is installed in the inner support plates. The composite vibration damping core plate is clamped between the inner support plates and the mounting plates. The composite vibration damping core plate consists of an aluminum honeycomb perforated sound-absorbing plate in the middle and flat viscoelastic dampers on both sides.

[0007] Furthermore, in the above-mentioned elevator guide rail noise reduction device based on composite vibration damping core plate, the elevator guide rail is composed of a wide head rail section, a narrow head rail section, a guide rail base plate, and a guide rail baffle. The wide head rail section is connected to one end of the guide rail base plate via the narrow head rail section. The outer end of the guide rail base plate is provided with a guide rail baffle. The wide head rail section and the narrow head rail section are each provided with several external lubricating oil holes.

[0008] Furthermore, in the aforementioned elevator guide rail noise reduction device based on composite vibration damping core plate, the inner support plate is composed of an inner support base plate, a narrow support block, a wide support block, an outer limiting plate, and a first inner limiting plate. The outer center of the inner support base plate is connected to the wide support block via the narrow support block. The narrow support block and the wide support block together have an oil storage cavity. The two side walls of the oil storage cavity have inner lubricating oil holes corresponding to the positions of the outer lubricating oil holes. The inner support base plate has an installation hole that communicates with the oil storage cavity and cooperates with the oil supply pipe. The outer side of the inner support base plate is symmetrically provided with two outer limiting plates covering the outer side of the guide rail baffle. The inner side of the inner support base plate is symmetrically provided with two sets of first inner limiting plates.

[0009] Furthermore, in the above-mentioned elevator guide rail noise reduction device based on composite vibration damping core plate, the mounting plate includes a mounting base plate, and two sets of second inner limiting plates are symmetrically arranged on the inner side of the mounting base plate. The first inner limiting plate and the second inner limiting plate located on the same side jointly clamp and install the composite vibration damping core plate.

[0010] Furthermore, in the aforementioned elevator guide rail noise reduction device based on composite vibration damping core plate, the inner support base plate is symmetrically provided with first fastening holes for easy installation of fasteners, and the mounting base plate is symmetrically provided with second fastening holes for easy installation of fasteners.

[0011] Furthermore, in the aforementioned elevator guide rail noise reduction device based on composite vibration damping core plate, the oil supply pipe includes an oil supply main pipe, connecting branch pipes, and oil supply branch pipes. An oil supply pump is connected to the oil supply main pipe. Several connecting branch pipes are equidistantly arranged on one side of the oil supply main pipe. One end of the connecting branch pipe is connected to one end of the oil supply branch pipe, and the other end of the oil supply branch pipe is provided with a plug-in part that mates with the mounting hole.

[0012] The beneficial effects of this utility model are: 1. Better vibration reduction and noise reduction effect: The composite vibration reduction core plate adopts a structure that combines aluminum honeycomb perforated sound-absorbing plate with flat viscoelastic damper. It not only has vibration reduction function, but also has a sound absorption structure, which can effectively absorb and reduce the vibration and noise generated by elevator operation. Compared with the single-layer vibration reduction core plate, the vibration reduction and noise reduction effect is significantly improved.

[0013] 2. Lubrication function: The device is equipped with an oil supply pipe. Through the oil storage chamber and internal lubrication hole on the inner support plate, and the external lubrication hole on the elevator guide rail, oil can be supplied to the contact part between the elevator guide rail and the slider to achieve the lubrication function, reduce wear between parts, extend service life, and overcome the shortcomings of the traditional device with single function.

[0014] 3. Reasonable structure and stable installation: The components are connected by fasteners and multiple sets of limiting plates are set, such as the first inner limiting plate, the second inner limiting plate, and the outer limiting plate, which together clamp and install the composite vibration damping core plate to ensure the overall structural stability of the device and its reliable operation during elevator operation.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the elevator guide rail structure in this utility model; Figure 3 This is a structural schematic diagram of the inner support plate in this utility model; Figure 4 This is a structural schematic diagram of the mounting plate in this utility model; Figure 5 This is a schematic diagram of the oil supply pipe fitting in this utility model; Figure 6 This is a schematic diagram of the composite vibration damping core plate in this utility model; In the attached diagram, the components represented by each number are as follows: 1-Elevator guide rail, 101-Wide head rail section, 102-Narrow head rail section, 103-Guide rail base plate, 104-Guide rail baffle, 105-External lubrication hole; 2-Inner support plate, 201-Inner support base plate, 202-Narrow support block, 203-Wide support block, 204-Oil reservoir, 205-Inner lubricating oil hole, 206-Mounting hole, 207-Outer limiting plate, 208-First fastening hole, 209-First inner limiting plate; 3-Mounting plate, 301-Mounting base plate, 302-Second inner limit plate, 303-Second fastening hole; 4-Fasteners; 5-Oil supply fittings, 501-Main oil supply pipe, 502-Connecting branch pipe, 503-Oil supply branch pipe; 6- Composite vibration damping core plate, 601- Aluminum honeycomb perforated sound absorbing plate, 602- Flat plate viscoelastic damper. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1-6 As shown, this embodiment provides an elevator guide rail noise reduction device based on a composite vibration damping core plate, including an elevator guide rail 1, inner support plates 2, mounting plates 3, fasteners 4, oil supply pipes 5, and a composite vibration damping core plate 6. Several inner support plates 2 are installed side-by-side in the elevator guide rail 1. The inner support plates 2 are connected to the mounting plates 3 via fasteners 4. Oil supply pipes 5 for supplying oil are installed in the inner support plates 2. The composite vibration damping core plate 6 is clamped between the inner support plates 2 and the mounting plates 3.

[0020] In this embodiment, the composite damping core plate 6 is composed of an aluminum honeycomb perforated sound-absorbing plate 601 located in the middle and a flat plate viscoelastic damper 602 located on both sides.

[0021] In this embodiment, the elevator guide rail 1 is composed of a wide head rail section 101, a narrow head rail section 102, a guide rail base plate 103, and a guide rail baffle 104. The wide head rail section 101 is connected to one end of the guide rail base plate 103 via the narrow head rail section 102. The guide rail base plate 103 is provided with a guide rail baffle 104 at its outer end. The wide head rail section 101 and the narrow head rail section 102 are each provided with a plurality of external lubrication holes 105.

[0022] In this embodiment, the inner support plate 2 is composed of an inner support base plate 201, a narrow support block 202, a wide support block 203, an outer limiting plate 207, and a first inner limiting plate 209. The outer center of the inner support base plate 201 is connected to the wide support block 203 via the narrow support block 202. The narrow support block 202 and the wide support block 203 together form an oil storage cavity 204. The two side walls of the oil storage cavity 204 have inner lubricating oil holes 205 corresponding to the positions of the outer lubricating oil holes 105. The inner support base plate 201 has mounting holes 206 that communicate with the oil storage cavity 204 and cooperate with the oil supply pipe 5. Two outer limiting plates 207 are symmetrically arranged on the outer side of the inner support base plate 201, covering the outer side of the guide rail baffle 104. Two sets of first inner limiting plates 209 are symmetrically arranged on the inner side of the inner support base plate 201.

[0023] In this embodiment, the mounting plate 3 includes a mounting base plate 301. Two sets of second inner limiting plates 302 are symmetrically arranged on the inner side of the mounting base plate 301. The first inner limiting plate 209 and the second inner limiting plate 302 located on the same side jointly clamp and install the composite vibration damping core plate 6.

[0024] In this embodiment, the inner support base plate 201 is symmetrically provided with first fastening holes 208 for easy installation of fasteners 4, and the mounting base plate 301 is symmetrically provided with second fastening holes 303 for easy installation of fasteners 4.

[0025] In this embodiment, the oil supply pipe fitting 5 includes an oil supply main pipe 501, a connecting branch pipe 502 and an oil supply branch pipe 503. An oil supply pump is connected to the oil supply main pipe 501. Several connecting branch pipes 502 are equidistantly arranged on one side of the oil supply main pipe 501. One end of the connecting branch pipe 502 is connected to one end of the oil supply branch pipe 503. The other end of the oil supply branch pipe 503 is provided with a plug-in part that mates with the mounting hole 206.

[0026] The vibration reduction and noise reduction principle of this embodiment is as follows: When the elevator is running, the vibration generated by the guide rail is first transmitted to the inner support plate 2, which then transmits the vibration to the mounting plate 3 that holds the composite vibration damping core plate 6. The flat viscoelastic damper 602 in the composite vibration damping core plate 6 then functions, converting the mechanical energy of the vibration into heat energy through its viscoelastic properties, thus achieving vibration reduction. Simultaneously, the numerous perforations on the aluminum honeycomb perforated sound-absorbing panel 601 scatter and absorb sound waves, further reducing noise and effectively minimizing the pollution of adjacent spaces caused by elevator vibration and noise.

[0027] The lubrication principle in this embodiment is as follows: The oil supply pump delivers lubricating oil to the main oil supply pipe 501, and then distributes it to each oil supply branch pipe 503 through the connecting branch pipe 502. The insertion pipe on the oil supply branch pipe 503 is inserted into the mounting hole 206 of the inner support base plate 201, allowing the lubricating oil to enter the oil storage chamber 204. The lubricating oil in the oil storage chamber 204 flows out through the inner lubricating oil hole 205, and then flows out through the outer lubricating oil hole 105 corresponding to the position of the inner lubricating oil hole 205, reaching the contact area between the elevator guide rail 1 and the inner support plate 2, thereby lubricating the contact area, reducing friction and wear between components, and ensuring the normal operation of the elevator guide rail.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A noise reduction device for elevator guide rails based on composite vibration damping core plates, characterized in that, The system includes an elevator guide rail, internal support plates, mounting plates, fasteners, oil supply pipes, and a composite vibration damping core plate. Several internal support plates are installed side by side in the elevator guide rail. The internal support plates are connected to the mounting plates by fasteners. Oil supply pipes for supplying oil to the internal support plates are installed in the internal support plates. The composite vibration damping core plate is clamped between the internal support plates and the mounting plates. The composite vibration damping core plate consists of an aluminum honeycomb perforated sound-absorbing plate in the middle and flat viscoelastic dampers on both sides.

2. The elevator guide rail noise reduction device based on composite vibration damping core plate according to claim 1, characterized in that, The elevator guide rail is composed of a wide head rail section, a narrow head rail section, a guide rail base plate, and a guide rail baffle. The wide head rail section is connected to one end of the guide rail base plate via the narrow head rail section. The guide rail base plate is provided with a guide rail baffle at its outer end. The wide head rail section and the narrow head rail section are each provided with several external lubrication oil holes.

3. The elevator guide rail noise reduction device based on composite vibration damping core plate according to claim 2, characterized in that, The inner support plate is composed of an inner support base plate, a narrow support block, a wide support block, an outer limiting plate, and a first inner limiting plate. The wide support block is connected to the outer center of the inner support base plate via the narrow support block. The narrow support block and the wide support block together form an oil storage cavity. The two side walls of the oil storage cavity have inner lubricating oil holes corresponding to the positions of the outer lubricating oil holes. The inner support base plate has an installation hole that communicates with the oil storage cavity and mates with the oil supply pipe. Two outer limiting plates covering the outer side of the guide rail baffle are symmetrically arranged on the outer side of the inner support base plate. Two sets of first inner limiting plates are symmetrically arranged on the inner side of the inner support base plate.

4. The elevator guide rail noise reduction device based on composite vibration damping core plate according to claim 3, characterized in that, The mounting plate includes a mounting base plate, and two sets of second inner limiting plates are symmetrically arranged on the inner side of the mounting base plate. The first inner limiting plate and the second inner limiting plate located on the same side jointly clamp and install the composite vibration damping core plate.

5. The elevator guide rail noise reduction device based on composite vibration damping core plate according to claim 4, characterized in that, The inner support base plate is symmetrically provided with first fastening holes for easy installation of fasteners, and the mounting base plate is symmetrically provided with second fastening holes for easy installation of fasteners.

6. The elevator guide rail noise reduction device based on composite vibration damping core plate according to claim 5, characterized in that, The oil supply pipe fitting includes a main oil supply pipe, connecting branch pipes, and oil supply branch pipes. An oil supply pump is connected to the main oil supply pipe. Several connecting branch pipes are equidistantly arranged on one side of the main oil supply pipe. One end of the connecting branch pipe is connected to one end of the oil supply branch pipe, and the other end of the oil supply branch pipe is provided with a plug-in part that mates with the mounting hole.

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