Adaptive variable damping elevator guide and vibration suppression device

Abstract

This invention discloses an adaptive variable damping elevator guiding and vibration suppression device, comprising: a roller guide shoe mechanical body for fixing and supporting a sliding rheostat and roller guide shoe; a sliding rheostat fixed on the roller guide shoe mechanical body and connected to a guide shoe vibration transmission component, the fixed end of which is fixed to a screw position on the guide shoe base, and the moving end fixed to a swing arm connected to the guide wheel; the moving end moves due to the movement of the swing arm, forming a distance difference with the fixed end across the resistance of the rheostat, thereby generating a sliding resistance and voltage signal value, which is output and transmitted to a variable orifice damper through an output line; a damper connecting seat provides longitudinal forced transmission for the variable orifice damper, which then provides vertical damping; and a variable orifice damper receives the sliding resistance and voltage signal value generated by the sliding rheostat and controls and adjusts the size of the internal orifice in real time to provide a real-time variable damping force.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, and specifically to an adaptive variable damping elevator guidance and vibration suppression device. Background Technology

[0002] Current elevator vertical guiding devices (guide shoes, guide rollers, etc.) mostly use friction, rollers, etc., to cooperate with the guide rails to achieve the purpose of vertical guidance and horizontal vibration isolation. Among them, roller guide shoes are divided into two categories: active and passive. Active guide shoes mostly use motors to achieve the effect of active vibration suppression.

[0003] The aforementioned equipment presents a trade-off between cost and vibration suppression effectiveness: Active control requires motors, matching printing plates, corresponding control programs, and multiple on-site adjustments for vibration suppression, resulting in extremely high costs. However, among passive guide shoes, friction guide shoes offer very poor vibration suppression, while roller guide shoes provide improved suppression compared to friction guide shoes, but still fall short of active guide shoes. Even with dampers installed on passive roller guide shoes, given a fixed damping effect (typically determined by orifice size or damper stroke), their effective vibration suppression range only applies to fixed frequencies, rendering them ineffective for complex vibration conditions.

[0004] Elevator operating conditions are relatively complex, and uneven loading often occurs. In such cases, the car tilts relative to the horizontal, causing excessive compression of the springs on one side. This increases the dynamic stiffness, leading to a mismatch in the pre-adjusted damping ratio under the original equilibrium state. Consequently, the vibration suppression effect decreases or even ceases to function. The corresponding publication number for this prior art is CN111936410A. Summary of the Invention

[0005] The technical problem to be solved by this invention is to balance elevator cost with vibration suppression effect under multiple operating conditions.

[0006] To solve the above-mentioned technical problems, the present invention provides an adaptive variable damping elevator guidance and vibration suppression device, characterized in that it includes,

[0007] The roller guide shoe mechanical body is used to fix and support the sliding rheostat and the roller guide shoe;

[0008] The sliding rheostat is fixed on the mechanical body of the roller guide shoe and connected to the vibration transmission component of the guide shoe. Its fixed end is fixed on the screw position of the guide shoe base, and its moving end is fixed on the swing arm connected to the guide wheel. The movement of the swing arm causes the moving end to move, forming a distance difference with the fixed end on the resistance of the rheostat, thereby generating the sliding resistance and voltage signal value, which is output and transmitted to the variable throttle orifice damper through the output line.

[0009] The damper connector provides longitudinal forced transmission for the variable orifice damper, which in turn provides vertical damping.

[0010] The variable orifice damper receives the sliding resistance and voltage signal value generated by the sliding rheostat to control and adjust the size of the internal orifice in real time, providing a real-time variable damping force.

[0011] Preferably, the variable orifice damper is connected to a rotating shaft on the mechanical body of the roller guide shoe, which provides a rotational degree of freedom, thereby converting the motion of the swing arm rotating around the shaft due to the change in the position of the guide wheel into a vertical action that is transmitted to the variable orifice damper.

[0012] Preferably, the sliding rheostat consists of a pair of spring guide plates and a resistive element, the spring guide plates and the resistive element being slidably connected, and the distance between the spring guide plates changing with the position of the guide wheel.

[0013] An adaptive variable damping elevator guidance and vibration suppression method relies solely on a combination of resistors, capacitors, and a sliding rheostat. Given a regulated power supply, the sliding rheostat produces different outputs by varying the length of the resistor connection. This output is filtered by a combination of capacitors and resistors, and the final output controls the opening and closing of the throttle orifice, thereby achieving variable damping.

[0014] Preferably, it comprises:

[0015] Step 1: Input the parameters of the relative position of the guide rod and the mechanical body, the spring compression, and the resistance value of the sliding rheostat into the regulated power supply control system.

[0016] Step 2: The output signal from Step 1 is filtered to obtain the output power parameters;

[0017] Step 3: Control the damper using the power parameters output in Step 2 and adjust the damping value.

[0018] Compared with the prior art, the present invention has the following technical effects:

[0019] For safety and stability considerations, without altering the dynamic stiffness of other components, this patent provides an adaptive variable damping active guide shoe solution using a simple electrical device (sliding rheostat) and independent of control algorithms and printing plates. This patent utilizes the displacement of the guide shoe base caused by the lateral displacement of the elevator car during off-center loading or movement, and the displacement of the guide wheel caused by the unevenness of the guide rail. The resulting change in the relative distance between the guide wheel and the fulcrum is used to adjust the damping ratio (throttle orifice size) of the damper in real time, thereby achieving a variable damping ratio for lateral vibration suppression. Attached Figure Description

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0021] Figure 1 This is a schematic diagram of the mechanical body of the roller guide shoe.

[0022] Figure 2 This is a schematic diagram illustrating the application scenario of the adaptive variable damping elevator guidance and vibration suppression device of the present invention.

[0023] Figure 3 This is a schematic diagram of the adaptive variable damping elevator guidance and vibration suppression device of the present invention.

[0024] Figure 4 This is a simplified control logic diagram of the adaptive variable damping elevator guidance and vibration suppression device of the present invention.

[0025] Explanation of reference numerals in the attached figures

[0026] 1 Roller guide shoe mechanical body 2 Variable orifice damper 3 Damper Connector 4 sliding rheostat 5 Fixed end 6 Spring guide plate 7 resistance 8 Output line 9 pivot 10 Guide wheel Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can fully understand other advantages and technical effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments, and the details in this specification can also be applied based on different viewpoints, with various modifications or changes made without departing from the overall design concept of the invention. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other. The following exemplary embodiments of the present invention can be implemented in many different forms and should not be construed as being limited to the specific embodiments set forth herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the technical solutions of these exemplary embodiments to those skilled in the art.

[0028] Example 1

[0029] This patent is composed of a roller guide shoe mechanical body 1, a variable orifice damper 2, a damper connecting seat 3, and a sliding rheostat 4. The damper connecting seat 3 provides a longitudinal forced transmission for the variable orifice damper 2: through its connection to the rotating shaft 9 of the mechanical body, it provides a rotational degree of freedom. Thus, the rotational motion of the guide rod 11 connected to the guide wheel 10 in the mechanical body can be converted into vertical motion and transmitted to the damper 2, which then provides vertical damping.

[0030] The sliding rheostat 4 is fixed to the roller guide shoe mechanical body 1 by its fixed end 5, and its other end is also fixed to the roller guide shoe mechanical body 1 by welding. At this time, the sliding rheostat can function as a sliding rheostat by changing the connection distance between the spring guide plate 6 and the resistor 7. The output voltage and current are transmitted to the variable orifice damper 2 via the output line 8, causing its internal orifice to change according to the output power of the output line 8. The shorter the distance between the resistor 7 and the two spring guide plates 6, the smaller the resistance, the greater the output power, and the larger the orifice.

[0031] Simple control logic such as Figure 4 As shown, product design can be completed without relying on high-cost components such as sensors and control algorithms, using only resistors and filtering processes.

[0032] This invention uses a simple electrical component, a sliding rheostat, to control the size of the damper orifice, thereby achieving variable damping that follows the changes in the car system and its vibration.

[0033] Without altering the system, a sliding rheostat is used to record the change in the forced compression of the system itself (spring), thereby changing the size of the orifice to accommodate the resulting change in dynamic stiffness. A large compression results in a smaller rheostat resistance, a larger orifice opening, and a smaller damping; conversely, a small compression results in a larger rheostat resistance, a smaller orifice opening, and a larger damping.

[0034] Based on the orifice size controller, the car acceleration signal is picked up and related control algorithms are made. This is more efficient and stable than using the motor directly for vibration suppression because the damping will not have a phase difference and will not have a counterproductive effect.

[0035] The present invention has been described in detail above through specific embodiments and examples, but these are not intended to limit the invention. Many modifications and improvements can be made by those skilled in the art without departing from the principles of the invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. An elevator guide and vibration suppression device with adaptive variable damping, characterized by, include, The roller guide shoe mechanical body is used to fix and support the sliding rheostat and the roller guide shoe; The sliding rheostat is fixed on the mechanical body of the roller guide shoe and connected to the vibration transmission component of the guide shoe. Its fixed end is fixed on the screw position of the guide shoe base, and its moving end is fixed on the swing arm connected to the guide wheel. The movement of the swing arm causes the moving end to move, forming a distance difference with the fixed end on the resistance of the rheostat, thereby generating the sliding resistance and voltage signal value, which is output and transmitted to the variable throttle orifice damper through the output line. The damper connector provides longitudinal forced transmission for the variable orifice damper, which in turn provides vertical damping. The variable orifice damper receives the sliding resistance and voltage signal value generated by the sliding rheostat to control and adjust the size of the internal orifice in real time, providing a real-time variable damping force. The change in the forced compression of the system itself is recorded by a sliding rheostat, thereby changing the size of the throttle orifice to adapt to the resulting change in dynamic stiffness; when the compression is large, the resistance of the sliding rheostat decreases, the opening of the throttle orifice increases, and the damping decreases. When the compression is small, the resistance of the sliding rheostat increases, the opening of the throttle orifice decreases, and the damping increases. The sliding rheostat consists of a pair of spring guide plates and a resistive element. The spring guide plates and the resistive element are slidably connected, and the distance between the spring guide plates changes with the position of the guide wheel.

2. The adaptive variable damping elevator guidance and vibration suppression device according to claim 1, characterized in that, The variable orifice damper is connected to a shaft on the mechanical body of the roller guide shoe. This shaft provides a rotational degree of freedom, thereby converting the motion of the swing arm rotating around the shaft due to the change in the position of the guide wheel into a vertical action that is transmitted to the variable orifice damper.

3. A method for implementing adaptive variable damping elevator guidance and vibration suppression using an adaptive variable damping elevator guidance and vibration suppression device according to any one of claims 1-2, characterized in that: By relying solely on the combination of resistors, capacitors, and a sliding rheostat, and given a regulated power supply, different outputs are achieved by varying the length of the sliding rheostat connected to the resistor. This output is filtered by the combination of capacitors and resistors, and the final output controls the opening and closing of the throttle orifice, thereby achieving the purpose of variable damping.

4. A vertical lift elevator arrangement, characterized by It includes an adaptive variable damping elevator guidance and vibration suppression device as described in any one of claims 1-2.

5. A vertical lift elevator arrangement, characterized by It includes the apparatus formed by the adaptive variable damping elevator guidance and vibration suppression method as described in claim 3.

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