System for handling elevator swing

Abstract

The application discloses a system for processing elevator swing, comprising: a swing limiting mechanism arranged at the top of the elevator shaft and / or the bottom of the elevator shaft, the swing limiting mechanism comprising two oppositely arranged roller bodies for pulling the rope of elevator operation through the gap between the two roller bodies, the two roller bodies controlling the elevator swing by limiting the swing of the rope; a sensor for sensing the contact force between the rope and the roller body; a controller for obtaining the sensing result of the sensor and controlling the elevator in response to the sensing result; wherein: the swing limiting mechanism further comprises a driving mechanism, after the sensor senses the contact between the rope and the roller body, the controller controls the driving mechanism to drive the roller body to move towards the rope, and the greater the contact force sensed by the sensor, the greater the displacement of the roller body driven by the driving mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of elevator operation inspection control, and in particular to a system for processing elevator swing. BACKGROUND

[0002] The elevator moves up and down by rope traction, and swing inevitably occurs during the operation of the elevator. Most of the swings are allowed because the swing amount is relatively small. However, some swings with a large swing amount will affect the riding experience of passengers, and even affect the service life of the elevator and related components. Sometimes, swing may even cause safety hazards. For example, excessive swing will cause uncomfortable vibration of passengers, and the swing of the elevator may collide with related components to cause failure or damage of the components. Excessive swing often occurs in elevators in high floors. Wind action causes the floors to sway, and then causes the elevator to swing.

[0003] In the prior art, a swing limiting mechanism is used to limit the swing of the elevator. Specifically, two roller bodies are arranged in the elevator shaft to pull the rope of the elevator through the hollow space between the two roller bodies. The swing of the elevator will cause the rope to swing, and the roller bodies limit the swing of the rope, thereby limiting and suppressing the swing of the elevator, and gradually stopping the swing of the elevator.

[0004] However, the above-mentioned swing limiting mechanism in the prior art limits the elevator with different swing amounts in the same way, thereby causing the elevator with a large swing amount to need a longer time to stop swinging. SUMMARY

[0005] In view of the above technical problems in the prior art, the embodiments of the present application provide a system for processing elevator swing.

[0006] To solve the above technical problems, the technical scheme adopted by the embodiments of the present application is as follows:

[0007] A system for processing elevator swing, comprising:

[0008] A swing limiting mechanism is arranged at the top of the elevator shaft and / or the bottom of the elevator shaft. The swing limiting mechanism comprises two roller bodies arranged oppositely, and is used to pull the rope of the elevator through the gap between the two roller bodies. The two roller bodies control the swing of the elevator by limiting the swing of the rope.

[0009] A sensor is used to sense the contact force between the rope and the roller body.

[0010] A controller is used to obtain the sensing result of the sensor, and control the elevator in response to the sensing result. Wherein:

[0011] The swing limiting mechanism further comprises a driving mechanism, after the sensor senses that the rope is in contact with the roller body, the controller controls the driving mechanism to drive the roller body to move towards the rope, and the greater the contact force sensed by the sensor, the greater the displacement of the roller body driven by the driving mechanism.

[0012] Preferably, a constant buffer component is further arranged between the roller body and the driving mechanism, and the constant buffer component is used to absorb the impact of the roller body when the rope is in contact with the roller body.

[0013] Preferably, a gain buffer mechanism is further arranged between the roller body and the driving mechanism in parallel with the constant buffer component; wherein:

[0014] When the contact force sensed by the sensor is greater than a preset value, the gain buffer mechanism increases the rigidity between the roller body and the driving mechanism.

[0015] Preferably, the gain buffer mechanism increases the rigidity between the roller body and the driving mechanism with the increase of the contact force sensed by the sensor.

[0016] Preferably, the driving mechanism is an electric cylinder.

[0017] Preferably, the constant buffer component is a columnar spring.

[0018] Preferably, the gain buffer mechanism comprises oppositely arranged electromagnets with coils, and the rigidity exerted by the gain buffer mechanism between the roller body and the driving mechanism is adjusted by changing the magnetic repulsion between the two electromagnets by changing the current flowing through the coils.

[0019] Preferably, when the contact force sensed by the sensor is greater than a preset value, the controller controls the elevator to slow down, and the greater the contact force, the lower the speed of the elevator controlled by the controller.

[0020] Compared with the prior art, the system for processing elevator swing disclosed by the present application has the following beneficial effects:

[0021] By actively reducing the distance between the two roller bodies, the suppression of the rope swing can be increased, and the elevator can be stopped from swinging faster. The amount of rope swing can be known based on the size of the contact force, and the size of the two roller bodies can be controlled according to the amount of swing, so that the time for the elevator with different swing amounts to stop swinging will not differ too much.

[0022] The foregoing overview of various implementations or examples of the technology described in this application is not exhaustive of all possible implementations or features of the disclosed technology. BRIEF DESCRIPTION OF DRAWINGS

[0023] In the drawings, which are not necessarily drawn to scale, like numerals describe similar components throughout the several views. Like numerals having different letter extensions can represent different instances of the like component. The drawings illustrate generally, by way of example, various embodiments of the present application and are not intended to limit the present application in any way. The same or similar reference numerals and letters in different views represent the same or similar elements. Such embodiments do not represent all embodiments according to the present application; rather they are merely exemplary and are used to describe the inventive embodiments in further detail. The same reference numerals in different drawings can represent the same or similar elements.

[0024] Figure 1 Structure diagram of an elevator shaft according to an embodiment of the present application.

[0025] Figure 2 Structure diagram of a system for processing elevator sway according to an embodiment of the present application.

[0026] Reference numerals:

[0027] 10 - mounting structure; 20 - sway limiting mechanism; 21 - roller body; 211 - slider; 212 - slide rail; 22 - driving mechanism; 23 - constant damper member; 24 - gain damper mechanism; 241 - electromagnet; 30 - sensor; 101 - elevator; 102 - rope; 103 - hoisting mechanism; 104 - fixed pulley; 105 - winding drum; 106 - counterweight; 200 - elevator shaft. DETAILED DESCRIPTION

[0028] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the ordinary meaning as understood by a person of ordinary skill in the art to which the present application pertains. The terms "first", "second", and similar terms do not denote any order, quantity, or importance, but are used to distinguish one element from another, and are used only for the purpose of description. The terms "include", "comprise", and similar terms are intended to mean that the elements or objects listed after the terms encompass the elements or objects recited therein and equivalents thereof, and do not preclude other elements or objects. The terms "connected" or "coupled" and similar terms are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like are used only to indicate relative positions, and can change accordingly when the absolute positions of the described objects are changed.

[0029] In order to keep the following description of the embodiments of the present application clear and concise, detailed descriptions of known functions and known components are omitted from the present application.

[0030] As Figure 1As shown, the disclosed embodiments of the present application disclose a system for handling the swing of an elevator 101, which is used to control the swing of the elevator 101 in an elevator 101 system, the elevator 101 system applied comprises: the elevator 101, a rope 102, a hoisting mechanism 103, a pulley system and a counterweight 106. The pulley system comprises an upper fixed pulley 104 arranged at the top of an elevator shaft 200 and a lower fixed pulley 104 arranged at the bottom of the elevator shaft 200, the rope 102 passes through the upper fixed pulley 104 and the lower fixed pulley 104, the elevator 101 is arranged on the rope 102, a winding drum 105 is located at the head of the rope 102 and is used to wind and unwind the rope 102, the counterweight 106 is located at the tail of the rope 102, and the hoisting mechanism 103 is used to drive the upper fixed pulley 104 therein so that the rope 102 pulls the elevator 101 to move up and down in the elevator shaft 200.

[0031] As shown in Figure 1 and Figure 2 , the system for handling the swing of an elevator comprises a swing limiting mechanism 20, a sensor 30 and a controller. A mounting structure 10 is arranged at the bottom and the top of the elevator shaft 200, and the mounting structure 10 is left with enough clearance so as not to contact the mounting structure 10 when the rope 102 swings with the elevator 101.

[0032] The mounting structure 10 at the top of the elevator shaft 200 and the mounting structure 10 at the bottom of the elevator shaft 200 are both mounted with the swing limiting mechanism 20, and the rope 102 passes through the swing limiting mechanism 20.

[0033] The swing limiting mechanism 20 comprises a sliding block 211, a sliding rail 212, a roller 21, a driving mechanism 22, a constant buffer component 23 and a gain buffer mechanism 24. The sliding rail 212 comprises two sections, and the two sections of the sliding rail 212 are arranged on the mounting structure 10 on both sides of the rope 102. The sliding block 211 is arranged on each sliding rail 212 and slides on the sliding rail 212 to approach or move away from the rope 102. The roller 21 is arranged on each sliding block 211, and the two rollers 21 are opposite to each other, and the rope 102 passes through the gap between the two rollers 21. In the initial state, the distance between the two rollers 21 is configured so that the rope 102 does not contact the roller 21 when the rope 102 swings slightly and the swing can be accepted.

[0034] The rear side of each sliding block 211 is provided with the driving mechanism 22, which is used to drive the sliding block 211 to slide along the sliding rail 212, and in turn drive the roller 21 to generate a certain displacement, so that the driving mechanism 22 can adjust the distance between the two rollers 21. The electric cylinder which can be driven by electricity is selected as the driving mechanism 22, and the selection of the electric cylinder is also conducive to driving the roller 21 to the precise position.

[0035] The sensor 30 is installed at the connecting area between the end of the roller body 21 and the sliding block 211, and is used to detect the contact force between the rope 102 and the roller body 21 when the rope 102 swings and contacts the roller body 21.

[0036] The controller is used to control the driving mechanism 22 and other components of the elevator 101 system such as the hoisting mechanism 103, and in response to the signal detected by the sensor 30 that the rope 102 contacts the roller body 21, it indicates that the rope 102 has generated an unallowed swing, in which case the controller controls the driving mechanism 22 so that the driving mechanism 22 drives the roller body 21 to move towards the rope 102, thereby reducing the distance between the two roller bodies 21, and thereby increasing the inhibition of the swing of the rope 102. Moreover, the greater the contact force detected by the sensor 30, the greater the displacement of the roller body 21 driven by the driving mechanism 22, i.e. the closer the two roller bodies 21 are made.

[0037] It should be noted that the maximum position of the driving mechanism 22 driving the roller body 21 should not be to the extent that the two roller bodies 21 clamp the rope 102.

[0038] By actively reducing the distance between the two roller bodies 21, the inhibition of the swing of the rope 102 can be increased, thereby accelerating the stopping of the swing of the elevator 101. The amount of swing of the rope 102 can be known based on the size of the contact force, and the size of the two roller bodies 21 can be controlled according to the amount of swing, thereby making the time for the elevator 101 with different amounts of swing to stop the swing not differ too much.

[0039] The constant buffer component 23 is provided between the sliding block 211 and the driving mechanism 22, and is used to buffer the impact on the rope 102 during the process of the roller body 21 inhibiting the swing. A cylindrical spring is selected as the constant buffer component 23, which alleviates the impact on the rope 102 by alternating expansion and contraction, thereby reducing the impact of the swing limiting mechanism 20 on the service life of the rope 102.

[0040] The gain buffer mechanism 24 is provided between the sliding block 211 and the driving mechanism 22, and is connected in parallel with the constant buffer component 23 and cooperates with the constant buffer component 23 to maintain the buffer stiffness of the rope 102. The gain buffer mechanism 24 can adjust the buffer stiffness of the rope 102. The timing and manner of the gain buffer mechanism 24 adjusting the buffer stiffness are as follows:

[0041] When the contact force detected by the sensor 30 is greater than the preset value, i.e. the amount of swing of the rope 102 reacting to the contact force is greater, the gain buffer mechanism 24 starts to apply additional buffer stiffness, so that the total buffer stiffness increases, which is beneficial to the rope 102 and the elevator 101 to lose the swing kinetic energy as quickly as possible and stop the swing.

[0042] The preset value can be set according to actual conditions. For example, when the installation distance of the elevator 101 and the shaft wall of the elevator shaft 200 is small, the preset value can be set to be relatively small to avoid the situation that when the swing amount of the elevator 101 reaches the degree of touching the shaft wall, the boost buffer mechanism still does not increase the buffer stiffness, resulting in that the elevator 101 cannot quickly stop swinging.

[0043] Preferably, the way in which the boost buffer mechanism 24 adjusts the buffer stiffness is further preferably:

[0044] The boost buffer mechanism 24 makes the stiffness between the roller body 21 and the driving mechanism 22 increase with the increase of the contact force sensed by the sensor 30, and decrease with the decrease of the contact force. That is, the greater the swing amount of the rope 102, the greater the buffer stiffness applied by the boost buffer mechanism, and the smaller the swing amount of the rope 102, the smaller the buffer stiffness applied by the boost buffer mechanism.

[0045] The purpose of such a setting is:

[0046] The greater the buffer stiffness, the faster the rope 102 and the elevator 101 stop swinging, and the greater the impact of the rope 102 due to swinging. By applying different buffer stiffnesses according to the swing amount, the contradiction between the control of the swing of the rope 102 and the impact on the rope 102 can be balanced.

[0047] In some embodiments, the boost buffer mechanism 24 includes: two electromagnets 241 arranged oppositely, the magnetic repulsion force of the two electromagnets 241 is changed by changing the current through the coil of the electromagnet 241 to adjust the buffer stiffness. For example, when it is necessary to increase the buffer stiffness, the current is increased, and when it is necessary to decrease the buffer stiffness, the current is decreased.

[0048] In some preferred embodiments, when the contact force sensed by the sensor 30 is greater than the preset value, the controller controls the elevator 101 to decelerate, and the greater the contact force, the lower the speed of the elevator 101 controlled by the controller. That is, when the swing of the rope 102 and the elevator 101 is too large as reflected by the contact force, the controller controls the elevator 101 to decelerate to avoid safety accidents of the elevator 101 under the superposition of swinging and high-speed operation, and the greater the swing, the lower the speed of the elevator 101 controlled by the controller, and even the elevator 101 is controlled to stop running.

[0049] Preferably, if the elevator 101 runs to the upper floors, the top swing limiting mechanism 20 is started, and if the elevator 101 runs to the lower floors, the bottom swing limiting mechanism 20 is started.

[0050] Furthermore, although example embodiments have been described in the present disclosure, it is contemplated that the scope of the application includes any and all embodiments having equivalent elements, modifications, omissions, combinations (e.g., of aspects across various embodiments), adaptations and / or alterations based on the present disclosure. The elements of the claims are to be construed in the broadest sense based on the language recited in the claims to encompass all equivalent techniques known to those skilled in the art. The specification and examples given herein are to be considered as non-limiting. A variety of embodiments have been described in the specification and examples. It is contemplated that the scope of the application includes any and all embodiments that are within the scope of the claims.

[0051] The above description is intended to be illustrative, and not restrictive. For example, the above-described examples (or one or more aspects thereof) can be used in combination with each other. Other embodiments will be apparent to those of ordinary skill in the art upon reviewing the above description. Further, in the detailed description, various features can be grouped together to streamline the disclosure. This should not be interpreted as an intention that the claimed subject matter requires more features than are expressly identified in the claims. Rather, the inventive subject matter can be practiced with less than all features of a particular disclosed embodiment. Accordingly, the following claims are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment, and it is made expressly clear that such embodiments can be combined with each other in various combinations or permutations. The scope of the application should be determined by reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosure of the examples described herein does not constitute an admission that the examples describe the only or the best way or ways in which to make or use the claimed subject matter, and is not intended to be limiting of the scope of the claimed subject matter in any way.

[0052] The above embodiments are only exemplary embodiments of the present application, not intended to limit the present application, and the scope of protection of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements should also be considered to fall within the protection scope of the present application.

Claims

1. A system for handling elevator swaying, characterized in that, include: A swing limiting mechanism is provided at the top and / or bottom of the elevator shaft. The swing limiting mechanism includes two rollers arranged opposite each other. A rope for traction of the elevator passes through the gap between the two rollers. The two rollers control the swing of the elevator by limiting the swing of the rope. Sensors are used to sense the contact force between the rope and the roller; The controller is used to acquire the sensing results from the sensors and control the elevator in response to the sensing results; wherein: The swing limiting mechanism also includes a drive mechanism. After the sensor detects that the rope is in contact with the roller, the controller controls the drive mechanism to drive the roller to move in the direction of the rope. Furthermore, the greater the contact force detected by the sensor, the greater the displacement of the roller driven by the drive mechanism. A constant buffer component is also provided between the roller body and the drive mechanism. The constant buffer component is used to absorb the impact on the roller body when the rope comes into contact with the roller body. A gain buffer mechanism is further provided between the roller and the drive mechanism, and the gain buffer mechanism is connected in parallel with the constant buffer component; wherein: When the contact force sensed by the sensor is greater than a preset value, the gain buffer mechanism increases the stiffness between the roller and the drive mechanism. The gain buffer mechanism includes electromagnets with coils wound around them and arranged opposite each other. By changing the current flowing through the coils, the magnetic repulsion between the two electromagnets is changed, thereby adjusting the stiffness applied by the gain buffer mechanism between the roller and the drive mechanism.

2. The system for handling elevator swaying according to claim 1, characterized in that, The gain buffer mechanism causes the stiffness between the roller and the drive mechanism to increase as the contact force sensed by the sensor increases.

3. The system for handling elevator swaying according to claim 1, characterized in that, The driving mechanism is an electric cylinder.

4. The system for handling elevator swaying according to claim 1, characterized in that, The constant buffer component is a columnar spring.

5. The system for handling elevator swaying according to claim 1, characterized in that, When the contact force sensed by the sensor is greater than a preset value, the controller controls the elevator to decelerate. Furthermore, the greater the contact force, the lower the speed of the elevator controlled by the controller.

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