A multi-layer composite elevator guide rail vibration reduction device

Abstract

A multi-layer composite elevator guide rail vibration reduction device includes a box body, a vibration reduction plate and an elastic vibration reduction component therebetween. The inner wall of one or both sides of the box body opposite to the vibration reduction plate is a sine wave. The corresponding elastic vibration reduction component includes an elastic outer pad, an inner pad and a rigid constraint plate. The cross-sectional shape of the outer pad is a triangular wave. The cross-sectional shape of the constraint plate and the side of the inner pad facing the inner wall of the box body are both sine waves. Bracket-shaped side reduction plates are also installed on both sides of the vibration reduction plate, and side pads are provided between the side reduction plates and the inner wall of the box body. By setting the shape of the outer pad and the side pad, different deformation moduli can be provided under different vibration conditions, thereby providing a stable, accurate and wider range of vibration reduction effects, so that the elevator has better working stability.

Description

Technical Field

[0001] The invention relates to a vibration reduction and noise reduction device for a lifting elevator, and in particular to a vibration reduction box structure for reducing vibration of an elevator guide rail. Background Art

[0002] In order to reduce the vibration and noise of elevator operation, a vibration reduction and noise reduction device needs to be installed between the elevator guide rail bracket and the shaft wall. The invention patent with Chinese patent publication number CN203568630U discloses a vibration reduction and noise reduction device for elevator guide rails, such as Figure 1 As shown, it includes a vibration damping box 101 filled with elastic vibration damping parts, an elevator guide rail 102 is located at the upper and lower ends of the vibration damping box, and L-shaped plates 103 are fixedly installed. The two L-shaped plates are connected by a vibration damping plate 104, and the vibration damping plate penetrates the vibration damping box to form two chambers in the vibration damping box. When the elevator is lifting, the vibration damping plate and the elastic vibration damping parts in the vibration damping box interact to produce a vibration damping effect; however, the straight plate-shaped vibration damping plate and the elastic vibration damping parts have a small effective area, and when the vibration amplitude of the elevator is large, it is easy to exceed its vibration damping range. Summary of the invention

[0003] The object of the present invention is to provide a multi-layer composite elevator guide rail vibration reduction device with better vibration reduction effect, so as to improve the vibration reduction effect and the adaptability range.

[0004] The multi-layer composite elevator guide rail vibration reduction device of the present invention comprises a box body and a vibration reduction plate arranged through the box body, elastic vibration reduction components are respectively arranged on both sides of the vibration reduction plate in the box body, and at least one of the wall surfaces contacting the box body and the elastic vibration reduction component is arranged in a wavy shape.

[0005] The multi-layer composite elevator guide rail vibration reduction device, the elastic vibration reduction component includes an elastic outer pad and an inner pad, the outer pad is arranged adjacent to the inner wall of the box body and its cross-sectional shape is a wave shape corresponding to the inner wall of the box body, the inner pad is arranged adjacent to the vibration reduction plate and the shape of the side facing the vibration reduction plate is consistent with the vibration reduction plate, and the shape of the other side of the inner pad is a wave shape corresponding to the outer pad.

[0006] The multi-layer composite elevator guide rail vibration reduction device has an inner wall of the box body and an inner pad facing a side of the box body in a sinusoidal shape, and an outer pad in a triangular cross-sectional shape.

[0007] In the multi-layer composite elevator guide rail vibration reduction device, a rigid constraint plate is arranged between the inner pad and the outer pad, and the cross-sectional shape of the constraint plate is a sine wave arranged opposite to the inner wall of the box body.

[0008] The multi-layer composite elevator guide rail vibration reduction device has side reduction plates installed on both sides of the vibration reduction plate located in the box body, the middle of the cross-sectional shape of the side reduction plate is a straight line and connected to the vibration reduction plate, and the two sides of the cross-sectional shape of the side reduction plate are arcs that bend outward from the middle, so that the side reduction plate is bracket-shaped as a whole; elastic side pads are also provided between the side reduction plate and the inner wall of the box body, and the cross-sectional shape of the side pads is a trapezoid. In addition, the two ends of the outer pad extend to the outside of the arc of the side reduction plate.

[0009] In the multi-layer composite elevator guide rail vibration reduction device described in the present invention, the vibration reduction plate passes through the middle of the box body to separate the internal space of the box body, and elastic vibration reduction components are respectively arranged between the two side surfaces of the vibration reduction plate and the two inner walls of the box body, and the elastic vibration reduction components on both sides are arranged relative to the shape of the inner wall of the box body. For example, if only one side of the inner wall in the box body is set to a sine wave, the elastic vibration reduction components opposite thereto include an outer pad, an inner pad and a constraint plate; if the two inner walls in the box body are symmetrically set to a sine wave, then the two elastic vibration reduction components include symmetrical outer pads, inner pads and constraint plates; in addition, the inner wall of the box body can be installed with a plate with a sine wave on one side, or the box wall can be directly bent into a sine wave, which can be determined according to needs.

[0010] When the elevator is working, the vibration damping plate will vibrate with the operation of the elevator, and the vibration will be transmitted to the box through the elastic vibration damping component, so that relative pressure is generated between the box and the outer pad, and the outer pad is compressed and deformed to absorb the vibration. When the vibration amplitude is small, the outer pad mainly contacts the box through the peak position of the triangular waveform, and the vibration damping effect it can provide is also small; and as the vibration amplitude increases, the pressure between the box and the outer pad will also increase, and the peak position of the triangular waveform of the outer pad will be compressed and deformed to the shape of the inner wall of the box, that is, close to the sine waveform, and the middle section of the wavelength of the outer pad waveform will also deform to provide vibration damping ability, thereby providing a greater vibration damping effect; similarly, the deformation caused by pressure between the inner pad and the outer pad is also the same. Therefore, the multi-layer composite elevator guide rail vibration damping device can adapt to different amplitudes generated during the operation of the elevator through different waveform settings of the inner wall of the box, the outer pad and the inner pad, thereby providing a stable, accurate and wider range of vibration damping effects, so that the elevator has better working stability. In addition, in order to further improve the vibration reduction effect, a constraint plate can be set between the inner pad and the outer pad. When the elevator vibrates, the constraint plate can make the inner pad and the outer pad deform more evenly as a whole, thereby avoiding small local deformation and severe local deformation. This can better utilize the vibration reduction effect of the entire elastic vibration reduction assembly, improve the vibration reduction capacity, and make the elevator run more smoothly, and can also improve the working safety and service life of the elastic vibration reduction assembly. In addition, side reduction plates and side pads are provided at the two side plates of the vibration reduction plate, and the other two inner walls in the box body are damped and buffered by the side pads. At the same time, the side pads are set to a trapezoid, and the shape of the side reduction plate is adaptively set to a bracket shape relative to the side pad, so that the deformation degree of the trapezoidal side pad can also increase with the increase of the vibration amplitude, so as to match the deformation characteristics of the vibration reduction plate and the inner pad, so that the elevator can run more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of an existing elevator vibration reduction and noise reduction device.

[0012] Figure 2 It is a structural schematic diagram of Embodiment 1 of the multi-layer composite elevator guide rail vibration reduction device of the present invention.

[0013] Figure 3 yes Figure 2 The cross-sectional structural schematic diagram of the multi-layer composite elevator guide rail vibration reduction device is shown.

[0014] Figure 4 yes Figure 2 The schematic diagram of the structure of the box of the multi-layer composite elevator guide rail vibration reduction device is shown.

[0015] Figure 5 yes Figure 2 The diagram is a schematic diagram of the connection structure between the vibration damping plate and the elastic vibration damping component of the multi-layer composite elevator guide rail vibration damping device.

[0016] Figure 6 It is a schematic diagram of the local structure of the outer pad.

[0017] Figure 7 It is a structural schematic diagram of a second embodiment of a multi-layer composite elevator guide rail vibration reduction device.

[0018] Figure 8 , 9 It is a structural schematic diagram of a third embodiment of a multi-layer composite elevator guide rail vibration reduction device.

[0019] Fig.10 It is a structural schematic diagram of a fourth embodiment of a multi-layer composite elevator guide rail vibration reduction device.

[0020] Fig.11 , 12 It is a structural schematic diagram of a fifth embodiment of a multi-layer composite elevator guide rail vibration reduction device. DETAILED DESCRIPTION

[0021] Embodiment 1, as Figure 2-6 shown.

[0022] A multi-layer composite elevator guide rail vibration reduction device comprises a box body 1 and a vibration reduction plate 2 arranged through the box body, wherein elastic vibration reduction components 3 are respectively arranged at both sides of the vibration reduction plate in the box body; inner wall plates 10 are respectively fixedly installed on the inner walls of the box body 1 on both sides opposite to the sides of the vibration reduction plate 2, and the side of the inner wall plate facing the vibration reduction plate is a sine wave; the elastic vibration reduction component comprises an elastic outer pad 4, an inner pad 5 and a rigid constraint plate 6 arranged between the inner pad 5 and the outer pad 4, wherein the outer pad is arranged adjacent to the inner wall plate and its cross-section shape is a triangular wave arranged opposite to the inner wall plate, The inner pad is arranged adjacent to the vibration damping plate and its shape facing the vibration damping plate is consistent with that of the vibration damping plate. The shape of the other side of the inner pad and the cross-sectional shape of the constraint plate are both sinusoidal waveforms arranged opposite to the inner wall plate. At the same time, the vibration damping plate 2 is located on both sides of the box 1 and is respectively installed with side damping plates 7. The middle part of the cross-sectional shape of the side damping plate is a straight line and connected to the vibration damping plate. The two sides of the cross-sectional shape of the side damping plate are arcs that bend outward from the middle, so that the side damping plate is bracket-shaped as a whole. There is also an elastic side pad 8 between the side damping plate and the inner wall of the box. The cross-sectional shape of the side pad is a trapezoid. In addition, the two ends of the outer pad 4 extend to the outside of the arc of the side damping plate 7.

[0023] In the multi-layer composite elevator guide rail vibration reduction device, when the elevator is working, the vibration reduction plate will vibrate with the operation of the elevator, and the vibration will be transmitted to the box body through the elastic vibration reduction component, so that relative pressure is generated between the box body and the outer pad. The outer pad is compressed and deforms to absorb the vibration. When the vibration amplitude is small, the outer pad mainly absorbs the vibration through the peak position of the triangular waveform (such as Figure 6When it contacts the box body at point A shown in the figure, the damping effect it can provide is also small; as the vibration amplitude increases, the pressure between the box body and the outer pad will also increase, and the peak position of the triangular waveform of the outer pad will be compressed and deformed to be close to the shape of the inner wall of the box body, that is, close to the sine waveform. And the middle section of the wavelength of the waveform of the outer pad (such as Figure 6 at point B shown in the figure) will also deform to provide damping ability, thereby providing a greater damping effect; similarly, the deformation generated between the inner pad and the outer pad due to pressure is also like this. Thus, through the different waveform settings of the inner wall of the box body, the outer pad and the inner pad, this multi-layer composite elevator guide rail damping device can adapt to different amplitudes generated during the operation of the elevator, thereby providing a stable, accurate and wider damping effect, so that the elevator has better working stability. In addition, in order to further improve the damping effect, a constraint plate can be provided between the inner pad and the outer pad. When the elevator vibrates, the constraint plate can make the inner pad and the outer pad deform more evenly as a whole, thereby avoiding that their local deformation is small while the local deformation is serious. This can better utilize the damping effect of the entire elastic damping component, improve the damping ability, make the operation of the elevator smoother, and can also improve the working safety and service life of the elastic damping component. Also, side damping plates and side pads are provided at both side plates of the damping plate. The side pads are used to damp and buffer the other two inner walls in the box body. At the same time, the side pads are set as trapezoids, and the shape of the side damping plates is set as a bracket shape adapted to the side pads. The deformation degree of the trapezoidal side pads can also increase with the increase of the vibration amplitude to cooperate with the deformation characteristics of the damping plate and the inner pad, so that the operation of the elevator can be smoother.

[0024] For the multi-layer composite elevator guide rail damping device described above, the elastic moduli of the inner pad 5 and the outer pad 4 are different, so that they can adapt to the amplitudes and damping requirements at different positions. The box body 1 includes an inner plate 11 and an outer plate 12. Both the inner plate and the outer plate are in a "U" shape and are arranged with openings on the opposite sides. The inner plate is embedded inside the "U" shape of the outer plate, so as to enclose the internal space of the box body to place the damping plate and the elastic damping component. This is beneficial to the inspection and maintenance of the box body and its internal components; in addition, both ends of the box body 1 through which the damping plate 2 passes are also open. Cover plates 9 that can cover the openings of the box body are respectively installed at both ends where the damping plate passes through the box body. This is different from the existing elevator damping and noise reduction device that slots at both ends of the box body. On the one hand, the multi-layer composite elevator guide rail damping device has a larger deformation space to meet the requirements of large-amplitude damping. On the other hand, the cover plates can be used to connect external components, such as connecting the L-shaped plates in the existing elevator damping and noise reduction device, thereby improving the overall structural strength and making the operation of the elevator safer and more stable.

[0025] Embodiment 2 is as shown in Figure 7 the figure.

[0026] A multi-layer composite elevator guide rail vibration reduction device, the inner pad 5 includes a single wave pad 51 and a wall pad 52, the wall pad is arranged adjacent to the vibration reduction plate 2 and is in the shape of a straight plate, and the side of the single wave pad facing away from the vibration reduction plate is a sine wave; the rest is the same as the first embodiment.

[0027] The multi-layer composite elevator guide rail vibration reduction device divides the inner pad into a single wave pad with a corrugated surface on one side and a wall pad against the vibration reduction plate. The single wave pad cooperates with the box body and the constraint plate to produce deformation to provide a vibration reduction effect, and the straight plate-shaped wall pad with more uniform deformation transmits force to the vibration reduction plate, which can make the vibration reduction effect more uniform and make the elevator run more smoothly.

[0028] Embodiment three, as Figure 8 , 9 shown.

[0029] A multi-layer composite elevator guide rail vibration reduction device, an inner wall plate 10 is fixedly installed on one side of the box body 1, and the elastic vibration reduction component between the inner wall plate and the vibration reduction plate 2 includes an outer pad 4, an inner pad 5 and a restraining plate 6; the rest is the same as the first embodiment.

[0030] The multi-layer composite elevator guide rail vibration reduction device is provided with different elastic vibration reduction components on both sides of the vibration reduction plate to meet different vibration reduction requirements.

[0031] Embodiment 4, as Fig.10 shown.

[0032] A multi-layer composite elevator guide rail vibration reduction device, wherein the box inner wall structure and the elastic vibration reduction component structure on both sides of the vibration reduction plate are symmetrically arranged with those of the third embodiment, and the rest are the same as those of the third embodiment.

[0033] Embodiment 5, as Fig.11 , 12 shown.

[0034] A multi-layer composite elevator guide rail vibration reduction device, wherein the cross-sectional shape of one or both sides of the box wall of the box body 1 opposite to the vibration reduction plate 2 is a sine wave; the rest is the same as the first embodiment.

[0035] The multi-layer composite elevator guide rail vibration reduction device directly bends the box wall of the box into a sine wave to eliminate the need for setting an inner wall plate, which can make the box directly contact with the elastic vibration reduction component, thereby improving the stability and accuracy of relative movement, and further improving the vibration reduction effect.

[0036] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A multi-layer composite elevator guide rail vibration reduction device, comprising a box body (1) and a vibration reduction plate (2) disposed through the box body, wherein elastic vibration reduction components (3) are disposed on both sides of the vibration reduction plate in the box body, and characterized in that: At least one of the walls of the box body and the elastic vibration damping component in contact is arranged in a wavy shape; the elastic vibration damping component (3) comprises an outer pad (4) and an inner pad (5) having elasticity, the outer pad being arranged adjacent to the inner wall of the box body (1) and having a cross-sectional shape corresponding to the wavy shape of the inner wall of the box body, the inner pad being arranged adjacent to the vibration damping plate (2) and having a shape on the side facing the vibration damping plate consistent with the vibration damping plate, and having a shape on the other side of the inner pad corresponding to the wavy shape of the outer pad; the shapes of the inner wall of the box body (1) and the side of the inner pad (5) facing the box body are both sinusoidal, and the cross-sectional shape of the outer pad (4) is a triangular waveform.

2. The multi-layer composite elevator guide rail vibration reduction device according to claim 1, characterized in that: A rigid constraint plate (6) is arranged between the inner pad (5) and the outer pad (4), and the cross-sectional shape of the constraint plate is a sinusoidal waveform arranged opposite to the inner wall of the box body (1).

3. The multi-layer composite elevator guide rail vibration reduction device according to claim 1, characterized in that: The vibration damping plate (2) is located inside the box body (1), and side damping plates (7) are respectively installed on both side edges thereof. The middle portion of the cross-sectional shape of the side damping plate is a straight line and is connected to the vibration damping plate. The two sides of the cross-sectional shape of the side damping plate are arcs that bend outward from the middle portion. Elastic side pads (8) are also provided between the side damping plate and the inner wall of the box body. The cross-sectional shape of the side pads is a trapezoid.

4. The multi-layer composite elevator guide rail vibration reduction device according to claim 3, characterized in that: Both ends of the outer pad (4) extend to the outer side of the arc-shaped portion of the side reduction plate (7).

5. The multi-layer composite elevator guide rail vibration reduction device according to any one of claims 1 to 4, characterized in that: The inner pad (5) comprises a single-wave pad (51) and a wall pad (52); the wall pad is arranged adjacent to the vibration damping plate (2) and is in the shape of a straight plate; and the side surface of the single-wave pad facing away from the vibration damping plate is in a sinusoidal waveform.

6. The multi-layer composite elevator guide rail vibration reduction device according to any one of claims 1 to 4, characterized in that: An inner wall plate (10) is fixedly mounted on the inner wall of the box body (1); the side of the inner wall plate facing the vibration damping plate (2) is in a sinusoidal waveform; and the elastic vibration damping component is arranged between the inner wall plate and the vibration damping plate.

7. The multi-layer composite elevator guide rail vibration reduction device according to any one of claims 1 to 4, characterized in that: The cross-sectional shape of one or both sides of the box wall of the box body (1) opposite to the vibration damping plate (2) is a sine wave.

8. The multi-layer composite elevator guide rail vibration reduction device according to any one of claims 1 to 4, characterized in that: The box body (1) is provided with openings at both ends for the vibration damping plate (2) to pass through, and cover plates (9) capable of covering the box body openings are respectively installed at both ends of the box body through which the vibration damping plate passes.

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