Swing protection device for steel wire rope of elevator

Abstract

The invention relates to an elevator steel wire rope swing protection device which comprises a fixing assembly installed on an elevator car and provided with a limiting switch. The guide device is mounted on the fixing assembly; the movable assembly is installed on the guide device and can move in the direction close to the fixed assembly under the guide of the guide device, and the steel wire rope moves in the movable assembly in the vertical direction; when the swing amplitude of the steel wire rope is larger than a threshold value, the movable assembly is pushed to make contact with the limiting switch, and the limiting switch is triggered. According to the elevator steel wire rope swing protection device, the swing conditions of the steel wire rope under various working conditions in a super high-rise building can be effectively monitored, and measures can be taken to protect elevator parts when the swing amplitude is large.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of elevators, and in particular to an elevator steel wire rope swing protection device. BACKGROUND

[0002] With the development of the elevator industry, the speed of elevators is constantly improving, and many super high-rise buildings have emerged in cities. Strong winds can cause such buildings to sway and excite the elevator steel wire rope to swing. When the swing amplitude reaches a certain extent, it will damage the components in the elevator shaft. The commonly used method is to use a tensioning device to tension the elevator steel wire rope, which increases the tension in the structure. Although the use of this device can reduce the damage of the steel wire rope swing to the elevator components, it increases the wear and tear of the components and bearings, and shortens the service life of the elevator.

[0003] To this end, sensor technology can be considered for improvement. If force or displacement sensors are used to obtain the swing force and amplitude of the steel wire rope, these data can be used to optimize the structure and layout of the elevator, which not only improves the safety and ride experience of the elevator, but also provides a reference for future elevator product development.

[0004] The information disclosed in the background section of the present application is only intended to increase the understanding of the overall background of the present application, and should not be considered as acknowledging or implying in any form that the information constitutes prior art known to those skilled in the art. SUMMARY

[0005] The purpose of the present application is to provide an elevator steel wire rope swing protection device, which has compact structure, small space occupation, strong applicability, and both protection function and detection function.

[0006] In order to solve the above problems, the present application provides an elevator steel wire rope swing protection device, which comprises: a fixed component installed to a car, the fixed component is installed with a limit switch; a guide device installed to the fixed component; and a movable component installed to the guide device and capable of moving towards the fixed component under the guidance of the guide device, the steel wire rope runs in the movable component along the vertical direction; wherein when the swing amplitude of the steel wire rope is greater than a threshold value, the movable component is pushed to contact the limit switch, so that the limit switch is triggered.

[0007] Preferably, the fixed component is further installed with a detection device, which can sense and record the displacement data of the movable component when the elevator steel wire rope pushes the movable component to move towards the fixed component in the detection mode.

[0008] Preferably, the elevator steel wire rope swing protection device further comprises: a resistance component arranged on the fixed component and capable of providing resistance to the movable component.

[0009] Preferably, the resistance assembly comprises a support rod and a coil spring sleeved on the support rod.

[0010] Preferably, the fixing assembly comprises a base mounted to the car, a guide device fixing bracket provided on the base, the guide device being mounted on the guide device fixing bracket, and a resistance assembly fixing bracket provided on the base, the resistance assembly fixing bracket being used for mounting the resistance assembly.

[0011] Preferably, the fixing assembly further comprises a terminal stopper provided on the resistance assembly fixing bracket, the resistance assembly being mounted on the resistance assembly fixing bracket by the terminal stopper.

[0012] Preferably, the movable assembly comprises a frame mounted to the guide device and capable of sliding along the guide device.

[0013] Preferably, the movable assembly further comprises a cushion detachably mounted on an inner surface of the frame.

[0014] Preferably, the resistance assembly fixing bracket has an elongated hole extending in a first direction, the first direction being consistent with the extending direction of the guide device.

[0015] Preferably, the base comprises a bottom plate mounted to the car, a connecting plate connected to the bottom plate, and a mounting plate connected to the bottom plate through the connecting plate, the mounting plate being used for mounting the guide device fixing bracket and the resistance assembly fixing bracket.

[0016] Preferably, the bottom plate has an elongated hole extending in a second direction, the mounting plate has an elongated hole extending in the second direction, and the second direction is perpendicular to the first direction.

[0017] Preferably, the fixing assembly further comprises a dust cover provided between the base and the car.

[0018] The elevator steel wire rope swing protection device can effectively monitor the swing of the steel wire rope under various working conditions in super high-rise buildings, and can take measures to protect the elevator components when the swing amplitude is large.

[0019] The method and device of the present application have other characteristics and advantages, which will be apparent or will be set forth in detail in the accompanying drawings and subsequent embodiments incorporated herein, which together serve to explain the specific principles of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1The application scenario diagram of the elevator steel wire rope swing protection device of the embodiment of the present application;

[0021] Figure 2 The Figure 1 The corresponding top view;

[0022] Figure 3 The first diagram of the elevator steel wire rope swing protection device without a dust cover;

[0023] Figure 4 The second diagram of the elevator steel wire rope swing protection device without a dust cover;

[0024] Figure 5 The structural diagram of the base.

[0025] Explanation of reference signs:

[0026] 100: fixed component 110: base

[0027] 111: bottom plate 112: connecting plate

[0028] 113: mounting plate 114: long hole

[0029] 115: long hole 120: guide device fixing support

[0030] 130: resistance component fixing support 131: bottom plate

[0031] 132: side plate 133: side plate

[0032] 134: long hole 140: end stop

[0033] 141: end stop first connecting plate 142: end stop second connecting plate

[0034] 150: dust cover 160: shock-absorbing rubber

[0035] 200: guide device 201: guide rod

[0036] 202: guide rod

[0037] 300: movable component 310: frame

[0038] 320: gasket 311: frame first plate

[0039] 312: frame second plate 313: frame third plate

[0040] 314: frame fourth plate

[0041] 400: detection device 401: contact sensor

[0042] 402: Non-contact displacement sensor

[0043] 500: Limit switch 600: Steel wire rope

[0044] 700: Resistance assembly 800: Car

[0045] It is to be understood that the drawings are not necessarily to scale, and that the various features are illustrated in a somewhat schematic form and are not necessarily drawn to scale. Specific design features (including, for example, specific dimensions, orientations, locations, and shapes) of the disclosed embodiments will be determined in part by the particular environment in which the embodiments are applied and used.

[0046] In the drawings, like numerals of reference designate the same or equivalent parts throughout the several views of the drawings. DETAILED DESCRIPTION

[0047] Reference will now be made in detail to various embodiments of the application, examples of which are illustrated in the accompanying drawings and described below. While the application will be described in conjunction with the exemplary embodiments, it will be understood that the application is not limited to these exemplary embodiments. On the contrary, the application is intended to cover all alternatives, modifications, equivalents and other embodiments that can be included within the spirit and scope of the application as defined by the appended claims.

[0048] For more clearly illustrating the positional relationship of various structures, a three-dimensional rectangular coordinate system is added in the drawings, the x-axis and the y-axis of which are axes in the horizontal plane, the positive direction of the x-axis is the direction from the outside of the car 800 to the inside of the car 800, and the z-axis is a vertical axis, the positive direction of the z-axis being vertically upward. The x-axis is directed in the same direction, the y-axis is also directed in the same direction, and the z-axis is also directed in the same direction in different drawings.

[0049] The first direction mentioned in the embodiments of the application is the direction of the x-axis (including the positive direction and the negative direction), i.e., the extending direction of the guide device 200, and the second direction is the direction of the y-axis (including the positive direction and the negative direction).

[0050] The following will be described in conjunction with Figures 1 to 5 An elevator steel wire rope swing protection device according to the embodiments of the application will be described.

[0051] The elevator steel wire rope swing protection device of the embodiments of the application is arranged on the top or the bottom of the car 800 of the elevator.

[0052] As Figures 1 to 4 shown, the elevator steel wire rope swing protection device of the embodiments of the application comprises a fixed assembly 100, a guide device 200, and a movable assembly 300.

[0053] The fixed assembly 100 is mounted to the car 800, and is used to mount the detection device 400 and the limit switch 500.

[0054] The guide device 200 is mounted to the fixed assembly 100.

[0055] The movable assembly 300 is mounted to the guide device 200, and is capable of moving towards the fixed assembly 100 under the guidance of the guide device 200, and the steel wire rope 600 runs in the movable assembly 300 along the vertical direction.

[0056] The steel wire rope 600 is capable of pushing the movable assembly 300 to move towards the fixed assembly 100, and the detection device 400 is capable of sensing and recording the swing amplitude of the movable assembly 300.

[0057] When the swing amplitude of the steel wire rope 600 is greater than a threshold value, the movable assembly 300 is pushed to contact the limit switch 500, so that the limit switch 500 is triggered.

[0058] The elevator steel wire rope swing protection device of the embodiment of the present application can effectively monitor the swing of the steel wire rope 600 under various working conditions in super high-rise buildings, and can take measures to protect the elevator components when the swing amplitude is large. The elevator steel wire rope swing protection device of the embodiment of the present application has the advantages of compact structure, small space occupation, strong applicability, and both protection function and detection function.

[0059] In an exemplary embodiment, as shown in Figure 3 and Figure 4 The elevator steel wire rope swing protection device of the embodiment of the present application further comprises a resistance assembly 700, which is arranged on the fixed assembly 100, and the resistance assembly 700 is capable of providing resistance to the movable assembly 300, which can slow down the swing of the steel wire rope 600 and reset the movable assembly 300.

[0060] In an exemplary embodiment, as shown in Figure 3 and Figure 4 The fixed assembly 100 comprises a base 110, two guide device fixing supports 120, a resistance assembly fixing support 130, and an end stop 140.

[0061] The base 110 is mounted to the car 800. As shown in Figure 5 The base 110 comprises a bottom plate 111, two connecting plates 112, and two mounting plates 113 formed integrally.

[0062] The bottom plate 111 extends along the second direction (i.e., the y-axis direction), and has an elongated hole 114 extending along the second direction, through which the base 110 is bolted to the car 800. The elongated hole 114 has a length in the second direction, so that a worker can adjust the position of the bottom plate 111 along the second direction of the car 800 according to actual design requirements.

[0063] The mounting plate 113 is connected to the bottom plate 111 through the connecting plate 112, and is located above the bottom plate 111. The mounting plate 113 has an elongated hole 115 extending along the second direction, through which the guide device fixing bracket 120 and the resistance assembly fixing bracket 130 are bolted to the mounting plate 113. The elongated hole 115 has a length in the second direction, so that a worker can adjust the position of the guide device fixing bracket 120 and the resistance assembly fixing bracket 130 along the second direction of the mounting plate 113 of the base 110 according to actual design requirements.

[0064] The two guide device fixing brackets 120 are located on both sides of the resistance assembly fixing bracket 130 in the second direction.

[0065] The guide device fixing bracket 120 is arranged on the base 110, and is used for mounting the guide device 200.

[0066] The guide device fixing bracket 120 is made of C-shaped steel. The guide device fixing bracket 120 is bolted to the elongated hole 115 of the mounting plate 113 of the base 110, and a worker can adjust the position of the guide device fixing bracket 120 along the second direction of the mounting plate 113 of the base 110 according to actual design requirements, so as to adjust the position of the guide device 200 along the second direction of the car 800.

[0067] The resistance assembly fixing bracket 130 is arranged on the base 110, and is used for mounting the resistance assembly 700.

[0068] As shown in Figure 3 and Figure 4 , the resistance assembly fixing bracket 130 is made of U-shaped steel.

[0069] The resistance assembly fixing bracket 130 includes a bottom plate 131, a side plate 132 and a side plate 133 formed integrally, and the side plate 132 and the side plate 133 are located on both sides of the bottom plate 131.

[0070] The bottom plate 131 is bolted to the elongated hole 115 of the mounting plate 113 of the base 110.

[0071] The side plate 133 is used to mount the end stop 140. The side plate 133 has an elongated hole 134 extending along the first direction, and the elongated hole 134 has a length in the second direction. An operator can adjust the position of the end stop second connecting plate 142 along the first direction of the side plate 133 to change the position of the end stop 140 along the first direction, and thus to adjust the position of the resistance assembly 700 along the first direction of the car 800, so as to adjust the resistance that the resistance assembly 700 can provide to the movable assembly 300.

[0072] In an example embodiment, as shown in Figure 3 and Figure 4 , the end stop 140 is in an L shape.

[0073] As shown in Figure 3 and Figure 4 , the end stop 140 is arranged on the resistance assembly fixing support 130, and the resistance assembly 700 is mounted on the resistance assembly fixing support 130 through the end stop 140.

[0074] Specifically, the end stop 140 includes an end stop first connecting plate 141 and an end stop second connecting plate 142 formed as one body.

[0075] The end stop second connecting plate 142 is mounted on the elongated hole 134 of the side plate 133 of the resistance assembly fixing support 130 through a bolt. The elongated hole 134 has a length in the second direction, and an operator can adjust the position of the end stop second connecting plate 142 along the first direction of the side plate 133 of the resistance assembly fixing support 130 according to actual design requirements to change the position of the end stop 140 along the first direction, and thus to adjust the required resistance.

[0076] The end stop first connecting plate 141 is used to mount the guide device 200.

[0077] In an example embodiment, as shown in Figure 1 and Figure 2 , the fixing assembly 100 further includes a dust cover 150 mounted on the base 110. The dust cover 150 is used to prevent the complex environment in the hoistway from damaging the components on the base 110, and also to prevent the components on the base 110 from falling and damaging the hoistway components of the elevator.

[0078] In an example embodiment, as shown in Figure 3 and Figure 4 , the fixing assembly 100 further includes a shock-absorbing rubber 160 arranged between the bottom plate 111 of the base 110 and the car 800. The shock-absorbing rubber 160 can reduce the impact of the vibration noise generated when the steel wire rope 600 touches the movable assembly 300 on the elevator.

[0079] In an exemplary embodiment, as shown in Figure 3 The guide device 200 includes two guide rods, i.e., a guide rod 201 and a guide rod 202. A portion of each guide rod is mounted on a guide device fixed support 120, and another portion of each guide rod extends to the outside of the car 800.

[0080] The guide device 200 can be composed of a bar and a sliding bearing, or other guide structures such as a guide rail can also be used.

[0081] In an exemplary embodiment, as shown in Figure 3 and Figure 4 The movable assembly 300 includes a frame 310 mounted to the guide device 200 and capable of sliding along the guide device 200. The frame 310 includes a frame first plate 311, a frame second plate 312, a frame third plate 313, and a frame fourth plate 314 connected in sequence. The frame first plate 311 is closest to the fixed assembly 100, and the frame third plate 313 is farthest from the fixed assembly 100.

[0082] The frame 310 encloses the wire rope 600, i.e., the wire rope 600 runs inside the frame 310. When the wire rope 600 shakes, the wire rope 600 can hit the frame first plate 311 and the frame third plate 313.

[0083] The frame first plate 311 and the frame third plate 313 are mounted to another portion of the guide rods 201, 202 and capable of sliding along the guide rods 201, 202, and the frame second plate 312 and the frame fourth plate 314 are located between the guide rod 201 and the guide rod 202.

[0084] The movable assembly 300 further includes a gasket 320 detachably mounted on the inner surface of the frame 310 (i.e., the frame first plate 311, the frame second plate 312, the frame third plate 313, and the frame fourth plate 314). The gasket 320 can reduce noise and reduce wear and tear on the frame 310 and the wire rope 600. When the gasket 320 is worn out more seriously, the gasket 320 can be replaced more conveniently, facilitating later maintenance.

[0085] The material of the gasket 320 can be nylon, rubber, etc.

[0086] The detection device 400 can be installed on the mounting plate 113 of the base 110, the guide device fixing bracket 120 or the resistance component fixing bracket 130. The detection device 400 can use a non-contact displacement sensor 402 or a contact sensor 401, or use both types of sensors at the same time to obtain more detailed swing data. The contact sensor 401 can be a contact displacement sensor or a contact pressure sensor. The detection device 400 is electrically connected to the control system of the elevator.

[0087] The limit switch 500 can be installed on the mounting plate 113 of the base 110, the guide device fixing bracket 120 or the resistance component fixing bracket 130. The limit switch 500 is electrically connected to the control system of the elevator.

[0088] The steel wire rope 600 can be a traction steel wire rope, a compensation steel wire rope, a speed limiter steel wire rope or other steel wire ropes.

[0089] In the embodiment shown in Figures 1 to 4 , the resistance component 700 includes a support rod and a coil spring sleeved on the support rod. In other embodiments, the resistance component 700 can also be selected from hydraulic rods, pneumatic rods, etc.

[0090] In the embodiment shown in Figures 1 to 4 , the resistance component 700 can adjust the required resistance by increasing or decreasing the spring or changing the position of the end block 140 in the first direction.

[0091] The elevator steel wire rope swing protection device of the embodiment of the present application has two modes: a detection mode and a protection mode.

[0092] The elevator steel wire rope swing protection device of the embodiment of the present application is suitable for situations of installing and maintaining elevators.

[0093] In the detection mode, as shown in Figure 3 , first install the detection device 400 on the mounting plate 113 of the base 110, the guide device fixing bracket 120 or the resistance component fixing bracket 130, and electrically connect the detection device 400 to the control system of the elevator, and then attach the frame first plate 311 of the frame 310 of the movable component 300 to the steel wire rope.

[0094] During the movement of the elevator, the steel wire rope 600 swings and pushes the movable component 300 to produce displacement, and the displacement or pressure data is recorded by the detection device 400. After the displacement of the movable component 300, the resistance provided by the resistance component 700 can reset the movable component 300.

[0095] In the detection mode, the resistance assembly 700 only needs to have the function of resetting the movable assembly 300 after the swing of the steel wire rope 600, so if there is a reset spring inside the contact sensor 401, the resistance assembly 700 can be removed.

[0096] After the swing data of the steel wire rope 600 is known or measured by the detection mode, the elevator steel wire rope swing protection device of the embodiment of the present application can be adjusted to the protection mode. Specifically, the detection device 400 is removed, and the limit switch 500 is installed on the mounting plate 113 of the base 110, the guide device fixed support 120 or the resistance assembly fixed support 130, and then the limit switch 500 is electrically connected to the control system of the elevator.

[0097] When set to the protection mode, the inside of the movable assembly 300 (i.e., the frame first plate 311) is fixed at a preset maximum swing allowed position. During the movement of the elevator, if the swing of the steel wire rope 600 is greater than the maximum swing allowed, the movable assembly 300 is first disengaged from the resistance assembly 700 and compresses the helical spring of the resistance assembly 700. The helical spring of the resistance assembly 700 provides resistance to the movable assembly 300 to slow down the swing of the steel wire rope 600, and finally contacts the limit switch 500 at the end, so that the limit switch 500 is triggered. After the limit switch 500 is triggered, a trigger signal is generated and sent to the control system of the elevator, so that the elevator stops or runs at a reduced speed.

[0098] Specifically, the steel wire rope 600 swings towards the car 800 of the elevator, and the movable assembly 300 does not move when the swing degree is small.

[0099] When the swing degree is medium, the steel wire rope 600 pushes the movable assembly 300 to move towards the car 800 and close to the fixed assembly 100, and the movable assembly 300 contacts the resistance assembly 700 and is subjected to the reaction force of the resistance assembly 700.

[0100] When the swing degree is large, the movable assembly 300 has completely overcome the reaction force of the resistance assembly 700, thereby threatening the safety of the car 800 and the shaft components, and the limit switch 500 is compressed and actuated to generate a trigger signal and send it to the control system of the elevator, so that the elevator stops or runs at a reduced speed.

[0101] The sensitivity of the protection can be adjusted by the resistance in the resistance assembly 700, the position of the limit switch 500, and the distance between the steel wire rope 600 and the inside of the movable assembly 300 (i.e., the frame first plate 311) when passing through.

[0102] The above embodiment is that the detection device 400 is installed on the fixing assembly 100 of the elevator steel wire rope swing protection device first, and the detection device 400 is replaced by the limit switch 500 after the monitoring is completed. In other embodiments, the detection device 400 and the limit switch 500 can be installed on the fixing assembly 100 simultaneously.

[0103] Various super high-rise buildings emerge in cities, and the higher the building is, the greater the influence of strong wind is, and the swing of the top of the building in strong wind weather is even dozens of centimeters, and the steel wire rope swings greatly and frequently under the influence of the “chimney effect” in the shaft of the super high-speed elevator, and if the elevator steel wire rope swing protection device of the embodiment of the application is used, the swing amplitude of the steel wire rope under such conditions can be effectively monitored, and measures can be taken in advance, so that the running safety of the elevator can be ensured and the service life of the elevator can be prolonged.

[0104] The multifunctional elevator steel wire rope swing protection device provided by the application has various functions, is convenient to install and debug, and can effectively monitor the swing of the steel wire rope under various working conditions in the super high-rise building, and can take measures to protect the elevator parts when the swing amplitude is large.

[0105] In order to facilitate explanation and accurately limit the appended claims, the terms “upper”, “lower”, “inner”, “outer”, “upper surface”, “lower surface”, “upper”, “lower”, “upward”, “downward”, “front”, “back”, “rear”, “inner side”, “outer side”, “inward”, “outward”, “interior”, “exterior”, “interior”, “exterior”, “interior”, “exterior”, “forward”, “backward”, are used to describe the features of the exemplary embodiments with reference to the positions of these features shown in the drawings.

[0106] The foregoing description of specific exemplary embodiments of the application presented for the purposes of illustration and description is not intended to be exhaustive or to limit the application to the precise forms disclosed, since obvious modifications and variations are possible in light of the above teachings. The exemplary embodiments were chosen and described in order to explain the principles of the application and its practical application and to enable others skilled in the art to implement and utilize the application in various embodiments and with various modifications as are suited to the particular use contemplated. The scope of the application is defined by the following claims and their equivalents.

Claims

1. An elevator wire rope sway protection device, comprising: a fixed assembly mounted to the car, wherein the fixed assembly is equipped with a limit switch; a guide device mounted to the fixing assembly; as well as A movable assembly is mounted on the guide device and is capable of moving toward the fixed assembly under the guidance of the guide device, with the wire rope running in a vertical direction within the movable assembly; When the swing amplitude of the wire rope is greater than a threshold value, the movable component is pushed to contact the limit switch, causing the limit switch to be triggered.

2. The elevator wire rope sway protection device according to claim 1, wherein: The fixed component is further equipped with a detection device. In the detection mode, when the elevator wire rope pushes the movable component to move in the direction close to the fixed component, the detection device can sense and record the displacement data of the movable component.

3. The elevator wire rope sway protection device according to claim 1, wherein: It further includes: The resistance component is arranged on the fixed component and can provide resistance to the movable component.

4. The elevator wire rope sway protection device according to claim 3, wherein: The resistance component includes a support rod and a coil spring sleeved on the support rod.

5. The elevator wire rope sway protection device according to claim 3, wherein: The fixing assembly includes: a base, which is mounted to the car; a guide device fixing bracket, which is provided on the base, and the guide device is mounted on the guide device fixing bracket; and The resistance component fixing bracket is arranged on the base, and the resistance component fixing bracket is used for installing the resistance component.

6. The elevator wire rope sway protection device according to claim 5, wherein: The fixing assembly further comprises: An end stopper is provided on the resistance component fixing bracket, and the resistance component is installed on the resistance component fixing bracket through the end stopper.

7. The elevator wire rope sway protection device according to claim 1, wherein: The active components include: A frame is mounted to the guide means and is slidable along the guide means.

8. The elevator wire rope sway protection device according to claim 7, wherein: The activity component further comprises: A gasket is detachably mounted on the inner surface of the frame.

9. The elevator wire rope sway protection device according to claim 5, wherein: The resistance assembly fixing bracket has a long hole extending in a first direction, and the first direction is consistent with the extending direction of the guide device.

10. The elevator wire rope sway protection device according to claim 5, wherein: The base comprises: a base plate mounted to the car; a connecting plate connected to the base plate; as well as The mounting plate is connected to the base plate via a connecting plate, and the mounting plate is used for mounting a guide device fixing bracket and a resistance assembly fixing bracket.

11. The elevator wire rope sway protection device according to claim 10, wherein: The bottom plate has a long hole extending along a second direction, and the mounting plate has a long hole extending along the second direction, wherein the second direction is perpendicular to the first direction.

12. The elevator wire rope sway protection device according to claim 5, wherein: The fixing assembly further comprises: A dust cover is provided between the base and the car.

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