An adjustable elevator main engine vibration reduction combined structure

Abstract

An adjustable elevator main engine vibration reduction combined structure, the elevator main engine is installed on an adjustment seat, the adjustment seat is arranged on a base and brackets are arranged between each other, the bottom of the bracket is arranged above the support plate in the adjustment seat, an upper vibration reduction component is arranged between the adjustment seat and the support plate, a lower vibration reduction component is arranged between the bottom of the support plate and the base, and a release compensation vibration reduction component is also arranged between the bottom of the bracket and the support plate, and a gap is left between the release compensation vibration reduction component and the support plate, thereby forming an upper, middle and lower three-layer vibration reduction structure. This adjustable elevator main engine vibration reduction combined structure can more evenly bear and transmit the vibration caused by the elevator main engine, thereby providing a stronger and smoother vibration reduction effect to ensure the stability and safety of the elevator operation; at the same time, the setting of multiple vibration reduction components can meet the vibration reduction needs of different vibration degrees, and use the release compensation vibration reduction component in the middle layer to eliminate the installation accuracy problem caused by errors.

Description

Technical Field

[0001] The present invention relates to a vibration damping device for a lifting elevator, and particularly to a vibration damping structure on a vibration damping seat of an elevator main machine. Background Art

[0002] A lifting elevator mainly includes a car, a traction system, a weight balance system, and an electric drive system. The traction motor, that is, the elevator main machine, is the most important component in the electric drive system. During the operation of the elevator main machine, continuous vibration will be generated. In order to reduce the impact of the vibration on the elevator, a vibration damping seat needs to be provided at the bottom of the elevator main machine. The existing vibration damping seats generally include a fixed housing, and an elastic vibration damping component is arranged inside the housing. The bottom of the elevator main machine presses on the elastic vibration damping component, and the deformation of the elastic vibration damping component is used to absorb the vibration brought by the elevator main machine. The function of this kind of vibration damping seat is relatively single, and due to the uneven weight at each position of the elevator main machine, the pressure on each part of the elastic vibration damping component is also different, and the deformation amounts at different positions of the elastic vibration damping component are naturally different. As a result, the elevator main machine cannot ensure stability during operation, and in severe cases, the elevator main machine may even tilt, and the elastic vibration damping component will also reduce its service life due to local fatigue. Summary of the Invention

[0003] The purpose of the present invention is to provide an adjustable vibration damping combination structure for an elevator main machine with multiple vibration damping capabilities, so as to improve the vibration damping performance and the stability and safety of elevator operation.

[0004] The adjustable vibration damping combination structure for an elevator main machine described in the present invention includes a fixedly installed base and an adjustment seat arranged above the base. A lower vibration damping component providing vibration damping ability is arranged inside the base, and a support plate is laid on the top surface of the lower vibration damping component; upper vibration damping components providing vibration damping ability are respectively arranged at several different positions inside the adjustment seat. The top and bottom of the upper vibration damping component are respectively abutted against the adjustment seat and the support plate; a bracket is also installed inside the adjustment seat, positioning holes for each upper vibration damping component to pass through are arranged on the bracket, the bottom of the bracket is arranged above the support plate inside the base, and a release compensation vibration damping component providing vibration damping ability is fixedly installed on the bottom surface of the bracket.

[0005] In the adjustable vibration damping combination structure for an elevator main machine, a gap is left between the compensation vibration damping component and the top surface of the support plate.

[0006] In the adjustable vibration damping combination structure for an elevator main machine, the upper vibration damping component and the lower vibration damping component have different elastic moduli; the elastic modulus of the release compensation vibration damping component is greater than that of the lower vibration damping component and the upper vibration damping component.

[0007] The adjustable vibration damping combined structure of the elevator main engine described in the present invention has the elevator main engine installed on an adjusting seat, and the adjusting seat is arranged on a base. At the same time, a rigid support plate is provided inside the base. An upper vibration damping component is arranged between the top surface of the support plate and the adjusting seat, and a lower vibration damping component is arranged between the bottom surface of the support plate and the base. When the elevator main engine vibrates due to work, the adjusting seat will also vibrate along with the elevator main engine. These vibrations will be transmitted to the upper vibration damping component, and the upper vibration damping component provides preliminary vibration damping and buffering. Then, the vibrations are transmitted to the lower vibration damping component through the support plate, and the lower vibration damping component provides further vibration damping and buffering. Thus, by using the setting of the adjusting seat and the two-layer vibration damping components, the vibrations are transmitted to various positions more evenly, the overall vibration damping performance of the vibration damping components can be better utilized, the influence of obvious local fatigue on the service life of the vibration damping components is avoided, and the probability of the elevator main engine tilting is greatly reduced. In addition, the upper vibration damping component and the lower vibration damping component can be set to have different elastic moduli, so as to provide corresponding vibration damping capabilities at different vibration levels and improve the smoothness of the elevator operation. In addition, another layer of vibration damping component can be added between the upper and lower vibration damping components, that is, the release compensation vibration damping component between the bracket and the support plate, to form a three-layer vibration damping structure. In the free state, there is a certain gap between the release compensation vibration damping component and the lower support plate. When the vibration amplitude is small, the release compensation vibration damping component does not contact the support plate, but the upper and lower vibration damping components provide vibration damping until the vibration amplitude increases and the release compensation vibration damping component presses against the support plate, and the release compensation vibration damping component deforms to provide more vibration damping capabilities to meet the requirements of large-amplitude vibration damping. Moreover, the setting of the release compensation vibration damping component can also be used to correct the installation error to ensure the accuracy of the installation of the elevator main engine vibration damping seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a schematic structural diagram of the adjustable vibration damping combined structure of the elevator main engine.

[0009] Figure 2 is a schematic partial structural diagram of the adjustable vibration damping combined structure of the elevator main engine.

[0010] Figure 3 is a schematic cross-sectional structural diagram of the adjustable vibration damping combined structure of the elevator main engine.

[0011] Figure 4 、 5 is a schematic connection structural diagram of the support plate, the upper vibration damping component and the adjusting screw. DETAILED DESCRIPTION OF THE INVENTION

[0012] An adjustable vibration damping combination structure for an elevator main machine, comprising a fixedly installed base 1 and an adjusting seat 2 arranged above the base. A lower vibration damping component 3 providing vibration damping ability is arranged in the base, and a support plate 4 is laid on the top surface of the lower vibration damping component; upper vibration damping components 5 providing vibration damping ability are respectively arranged at several different positions in the adjusting seat. The top and bottom of the upper vibration damping component are respectively abutted against the adjusting seat and the support plate; A bracket is also installed in the adjusting seat. A positioning hole 83 for each upper vibration damping component to pass through is arranged on the bracket. The bottom of the bracket is arranged above the support plate in the base. A release compensation vibration damping component 30 providing vibration damping ability is fixedly installed on the bottom surface of the bracket, and a gap is left between the compensation vibration damping component and the top surface of the support plate.

[0013] In the adjustable vibration damping combination structure for an elevator main machine, the upper vibration damping component 5 and the lower vibration damping component 3 have different elastic moduli; the elastic modulus of the release compensation vibration damping component 30 is greater than that of the lower vibration damping component 3 and the upper vibration damping component 5.

[0014] In the adjustable vibration damping combination structure for an elevator main machine, the elevator main machine is installed on the adjusting seat, and the adjusting seat is arranged on the base and a bracket is arranged between them. The positioning holes on the bracket can limit each upper vibration damping component to prevent displacement or misalignment during the vibration damping process; the bottom of the upper vibration damping component presses on the support plate, and a lower vibration damping component is arranged below the support plate. In addition, a release compensation vibration damping component is also arranged between the bottom of the bracket and the support plate, thus forming a three-layer vibration damping structure of upper, middle and lower layers; when the elevator main machine vibrates due to work, the adjusting seat will also vibrate with the elevator main machine and transmit the vibration to the upper vibration damping component. The upper vibration damping component will transmit the vibration to the lower vibration damping component through the support plate, thereby causing the upper and lower vibration damping components to deform to achieve vibration damping; during this process, if the vibration degree is low, a certain distance will be reserved between the release compensation vibration damping component at the bottom of the bracket and the support plate, so that the release compensation vibration damping component does not provide vibration damping ability; if the vibration degree increases, the release compensation vibration damping component will contact the support plate and deform, thus providing a greater vibration damping effect. This adjustable vibration damping combination structure for an elevator main machine can bear and transmit the vibration brought by the elevator main machine more evenly, thereby providing a stronger and more stable vibration damping effect to ensure the smoothness and safety of the elevator operation; at the same time, the setting of multiple vibration damping components can meet the vibration damping requirements of different vibration degrees, and the release compensation vibration damping component in the middle layer can eliminate the installation accuracy problems caused by errors, thereby improving the applicability of the vibration damping seat and further improving the safety of the elevator operation.

[0015] The adjustable vibration damping combined structure of an elevator main machine. The bracket includes a mounting plate 84 that is detachably installed in the adjusting seat 2, a side plate 82 vertically provided at the bottom of the mounting plate, and a supporting plate 81 provided at the bottom of the side plate. A positioning hole 83 is provided on the supporting plate. A lateral vibration damping pad 9 is provided between the side plate and the base 1, and lateral vibration damping pads 9 are provided between each side of the base 1 and the side plate 82 at each side of the bracket. Such a bracket structure can not only be conveniently detachably connected to the adjusting seat, but also conveniently set the lateral vibration damping pads, so as to provide horizontal limit and vibration damping for the adjusting seat, and avoid the excessive vibration amplitude of the adjusting seat from affecting the operation of the elevator main machine. In addition, a pressing plate 6 is provided at the top surface of the upper vibration damping assembly 5, a screw hole is provided on the adjusting seat 2 or an adjusting nut 72 with a screw hole is fixedly installed, an adjusting screw 71 passes through the screw hole and abuts against the pressing plate. At the same time, a pressing block 73 can be installed at the end of the adjusting screw 71. The pressing block can be columnar or spherical to better cooperate with the inner wall of the pressing column. By applying a vertical pressure to the pressing plate through the adjusting screw to change the pressure of the pressing plate on the upper vibration damping assembly, different deformations and different vertical heights are generated in the upper vibration damping assemblies at different positions in the adjusting seat. This can not only eliminate the inclination problem caused by uneven ground, but also enable each upper vibration damping assembly to adapt to the vibration damping requirements of different weights and different vibration amplitudes at different positions of the elevator main machine, thus effectively ensuring the installation accuracy and operation stability of the elevator main machine; and the top of the adjusting screw is arranged on the top surface of the adjusting seat, and its operation is extremely convenient.

[0016] In the adjustable vibration damping combined structure of an elevator main machine, the upper vibration damping assembly 5 can be a spring, a rubber part, or a rubber spring in the shape of a cylinder with an axial through hole as shown in the figure. A positioning post 41 extending into the axial through hole of the rubber spring is provided on the top surface of the support plate 4 to improve the installation stability of the rubber spring and prevent its lateral movement. The pressing plate 6 is provided with a through hole and a cup-shaped pressing column 61 is connected at the through hole. The pressing column can further position the rubber spring and cooperate with the adjusting screw more stably.

Claims

1. An adjustable elevator mainframe vibration reduction combined structure, comprising a fixedly mounted base (1) and an adjustment seat (2) arranged above the base, characterized in that: A lower vibration damping component (3) providing vibration damping capability is arranged in the base, and a support plate (4) is arranged on the top surface of the lower vibration damping component; upper vibration damping components (5) providing vibration damping capability are arranged at a plurality of different positions in the adjustment seat, and the top and bottom of the upper vibration damping components are respectively against the adjustment seat and the support plate; a bracket is also arranged in the adjustment seat, and a positioning hole (83) is arranged on the bracket for each upper vibration damping component to pass through, the bottom of the bracket is arranged above the support plate in the base, and a release compensation vibration damping component (30) providing vibration damping capability is fixedly installed on the bottom surface of the bracket; the bracket comprises a mounting plate (84) detachably mounted in the adjustment seat (2), a side plate (82) vertically arranged at the bottom of the mounting plate, and a supporting plate (81) arranged at the bottom of the side plate, the positioning hole (83) is arranged on the supporting plate, and a lateral vibration damping pad (9) is arranged between the side plate and the base (1).

2. The adjustable elevator mainframe vibration reduction combined structure according to claim 1 is characterized in that: A gap is left between the compensating vibration reduction component (30) and the top surface of the support plate (4).

3. The adjustable elevator mainframe vibration reduction combined structure according to claim 1 is characterized in that: The upper vibration damping assembly (5) and the lower vibration damping assembly (3) have different elastic moduli.

4. The adjustable elevator mainframe vibration reduction combined structure according to claim 3 is characterized in that: The elastic modulus of the release compensation vibration damping component (30) is greater than that of the lower vibration damping component (3) and the upper vibration damping component (5).

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