Detection device for elevator compensation rope, elevator compensation device and elevator system

Abstract

The invention provides a detection device for an elevator compensation rope, and relates to the technical field of elevators. The detection device comprises N detectors, at least N detection areas are provided, the N detection areas are located on the lower side of a catenary area, the catenary area comprises part of rope bodies, in a preset tensioning state, of S compensation ropes, and S and N are integers larger than or equal to 1; wherein the N detectors are configured in the mode that if it is detected that any part of the rope body in the catenary area falls into at least one detection area, the corresponding detectors send out detection signals, and the detection signals indicate that at least one of the S compensation ropes reaches a preset loose state. The invention further provides an elevator compensation device and an elevator system.

Description

Technical Field

[0001] The present disclosure relates to the technical field of elevators, and more specifically, to a detection device for an elevator compensating rope, an elevator compensating device, and an elevator system. Background Art

[0002] The elevator compensating rope mainly plays the role of compensating the traction wire rope. During the use of the compensating rope, due to its own characteristics, it will continue to stretch. Due to various reasons, one or more of the compensating ropes may become loose, and these loose compensating ropes may move abnormally, such as crossing the groove, squeezing and knocking. Abnormal movement will cause damage to other components and the rope itself, causing losses. How to detect the looseness of these compensating ropes in advance so as to make timely adjustments to eliminate or improve the existing risks is an urgent problem to be solved. Summary of the invention

[0003] In view of the above problems, the present disclosure provides a detection device for an elevator compensating rope, an elevator compensating device and an elevator system.

[0004] One aspect of an embodiment of the present disclosure provides a detection device for an elevator compensating rope, comprising: N detectors, providing at least N detection areas, wherein the N detection areas are located on the lower side of a catenary area, the catenary area includes S compensating ropes, each of which has a partial rope body in a predetermined tensioning state, and S and N are both integers greater than or equal to 1; wherein the N detectors are configured such that if it is detected that any of the partial rope bodies in the catenary area falls into at least one detection area, the corresponding detector sends a detection signal, and the detection signal indicates that at least one of the S compensating ropes has reached a predetermined relaxation state.

[0005] In some embodiments, the N detection areas are located at the lower side of the catenary area, which includes: upper boundaries of the N detection areas are respectively separated from the catenary area in sequence along the direction of gravity.

[0006] In some embodiments, any two adjacent detection areas among the N detection areas do not intersect each other.

[0007] In some embodiments, any spacing distance among the N detection areas is not equal to at least one other spacing distance; or any two spacing distances among the N detection areas are equal, and the spacing distance is the distance between adjacent detection areas along the gravity direction.

[0008] In some embodiments, the detection device also includes: M moving parts, M detectors among the N detectors are installed one by one on the M moving parts, M is an integer greater than or equal to 1, and M is less than or equal to N; wherein, the M moving parts are configured to move the M detectors along the direction of gravity so that the detection areas of the respective M detectors are close to or away from the catenary area.

[0009] In some embodiments, the N detectors are located at the bottom of the tensioning device of the elevator; and / or the N detection areas are located at the bottom of the tensioning device of the elevator.

[0010] In some embodiments, the tensioning device includes a first tensioning wheel and a second tensioning wheel, and the catenary area is configured to be located between the first tensioning wheel and the second tensioning wheel, and any portion of the rope in the catenary area reaches the predetermined tensioning state through the first tensioning wheel and the second tensioning wheel.

[0011] In some embodiments, any portion of the cable body in a predetermined tension state in the catenary region is perpendicular to the direction of gravity and is spaced apart from any one of the N detection regions.

[0012] In some embodiments, the N detectors include at least one photosensor.

[0013] In some embodiments, any one of the at least one photosensor comprises: a transmitter configured to emit light; and a receiver configured to receive the light; wherein a light area between the transmitter and the receiver forms a detection area.

[0014] Another aspect of the embodiments of the present disclosure provides an elevator compensation device, comprising: a compensation rope; a tensioning device, configured to tension the compensation rope; and a detection device as described in any one of the above items, configured to detect slack of the compensation rope.

[0015] Another aspect of the disclosed embodiments provides an elevator system, comprising: an elevator car; a counterweight; a traction wire rope configured to suspend the elevator car and the counterweight; and a compensation device as described above, wherein the compensation rope in the compensation device is configured to compensate for the weight of the traction wire rope.

[0016] Another aspect of the disclosed embodiment provides a detection method for an elevator compensating rope, comprising: arranging N detectors; making the N detectors provide at least N detection areas, wherein the N detection areas are located on the lower side of a catenary area, the catenary area includes a portion of the rope body of each of S compensating ropes that is in a predetermined tensioning state, and S and N are both integers greater than or equal to 1; in response to any of the portion of the rope body in the catenary area falling into at least one detection area, causing the corresponding detector to send a detection signal, wherein the detection signal indicates that at least one of the S compensating ropes has reached a predetermined relaxation state.

[0017] One or more of the above-mentioned embodiments have the following beneficial effects: by using N detectors on the lower side of the catenary area to provide at least N detection areas, it is used to detect whether the part of the rope body that was originally in the predetermined tensioning state of each compensation rope still remains in the predetermined tensioning state, so that the running space of the compensation rope can be monitored in time. If it is detected that any part of the rope body in the catenary area falls into at least one detection area, a detection signal can be sent out to achieve the effect of capturing whether each compensation rope has reached the predetermined relaxation state at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above contents and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0019] Figure 1 A diagram schematically shows an elevator system according to an embodiment of the present disclosure;

[0020] Figure 2 Schematically illustrates an embodiment of the present disclosure Figure 1 A magnified image of area A;

[0021] Figure 3 A schematic diagram schematically shows a state of being out of a predetermined tension state according to an embodiment of the present disclosure;

[0022] Figure 4A A schematic diagram schematically shows a partial rope body of a compensation rope in a predetermined tension state according to an embodiment of the present disclosure;

[0023] Figure 4B A schematic diagram schematically shows a partial rope body of a compensation rope in a predetermined slack state according to an embodiment of the present disclosure;

[0024] Figure 5A A schematic diagram schematically shows a partial rope body of a compensation rope in a predetermined tension state according to another embodiment of the present disclosure;

[0025] Figure 5B A schematic diagram schematically shows a portion of a compensation rope in a predetermined slack state according to another embodiment of the present disclosure; and

[0026] Figure 6 A flow chart of a method for detecting an elevator compensating rope according to an embodiment of the present disclosure is schematically shown.

[0027] The reference numerals in the above drawings are as follows:

[0028] 100. Elevator system; 10. Compensating device; 20. Compensating rope sheave box; 30. Compensating rope; 31. Catenary area; 32. Part of the rope body; 40. Counterweight; 50. Traction wire rope; 60. Traction sheave; 70. Elevator car; 80. Detector; 81. Transmitter; 82. Receiver; 83. Light; 90. Tensioning device; 91. First tensioning wheel; 92. Second tensioning wheel.

[0029] It should be noted that, for the sake of clarity, in the drawings used to describe the embodiments of the present disclosure, the sizes of the overall / local structures or the overall / local areas may be enlarged or reduced, that is, these drawings are not drawn according to the actual scale. DETAILED DESCRIPTION

[0030] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present disclosure. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0031] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise", "include", etc. used herein indicate the existence of features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0032] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification, and should not be interpreted in an idealized or overly rigid manner.

[0033] When using expressions such as "at least one of A, B, and C, etc.", they should generally be interpreted according to the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0034] Figure 1 The elevator system diagram according to the embodiment of the present disclosure is schematically shown. It should be noted that: Figure 1 The examples shown are merely examples to which the embodiments of the present disclosure can be applied, so as to help those skilled in the art understand the technical content of the present disclosure, but do not mean that the embodiments of the present disclosure cannot be used in other devices, systems, environments or scenarios.

[0035] like Figure 1 As shown, the elevator system 100 according to this embodiment includes a compensating device 10, a compensating rope sheave box 20, a compensating rope 30, a counterweight 40, a traction wire rope 50, a traction wheel 60, an elevator car 70, a detector 80 and a tensioning device 90. Among them, the compensating device 10 includes a compensating rope sheave box 20, a compensating rope 30, a detector 80 and a tensioning device 90, and the detector 80 is configured to detect the slack of the compensating rope 30. Specifically, the traction wire rope 50 is respectively connected to the top of the counterweight 40 and the elevator car 70, and the traction wheel 60 rotates to drive the elevator car 70 and the counterweight 40 to move. The compensating rope 30 is respectively connected to the bottom of the counterweight 40 and the elevator car 70 to compensate for the weight of the traction wire rope 50 during the movement of the elevator car 70. The compensating rope sheave box 20 is used to guide the compensating rope 30, and the tensioning device 90 is used to tension the compensating rope 30, effectively reducing the swing amplitude of the compensating rope 30 caused by the movement of the elevator car 70, thereby improving the safety and comfort of the elevator during use.

[0036] Figure 2 Schematically illustrates an embodiment of the present disclosure Figure 1 Magnified view of area A.

[0037] In some embodiments, the present disclosure provides a detection device for an elevator compensation rope 30, the detection device comprising N detectors 80, the N detectors 80 correspondingly providing at least N detection areas. The N detection areas are located at the lower side of the catenary area 31, the catenary area 31 comprises a portion of the rope body 32 of S compensation ropes 30, each of which is in a predetermined tension state, and S and N are both integers greater than or equal to 1;

[0038] Among them, the N detectors 80 are configured to send a detection signal if it is detected that any part of the rope body 32 in the catenary area 31 falls into at least one detection area, and the detection signal indicates that at least one of the S compensation ropes 30 reaches a predetermined relaxation state.

[0039] When the part of the rope body 32 of each compensation rope 30 is subjected to the tensioning force of the tensioning device 90, a suspended straight rope body will be formed, for example, through winding between two tensioning wheels, a nearly horizontal rope body will be formed at the bottom of the tensioning wheels, that is, a catenary. Figure 1 and Figure 2 For example, the catenary area 31 is the area where the aforementioned catenaries are located, including a portion of the rope body 32 of each compensation rope 30 at the bottom of the tensioning device 90.

[0040] The rope shape, tension and parallel relationship with respect to the horizontal plane of the compensation rope 30 that meet the healthy operation requirements of the elevator under the predetermined tension state, such as the catenary being in the form of a horizontal straight line. It can be understood that the horizontal or parallel mentioned in some embodiments of the present disclosure include absolute horizontal, absolute parallel, approximately horizontal or approximately parallel, etc.

[0041] In the predetermined relaxation state, the rope shape, tension and parallel relationship relative to the horizontal plane of the compensation rope 30 do not meet the requirements for healthy operation of the elevator. In this state, the rope body that falls into the detection area exceeds the overhang threshold and is out of the predetermined tension state, for example, the catenary is no longer in the shape of a horizontal straight line.

[0042] Each detector 80 provides at least one detection area, and when the portion of the rope body 32 of each compensation rope 30 located in the catenary area 31 falls into the detection area, the detector 80 providing the detection area sends a detection signal. For example, the elevator system 100 also includes a controller, and the controller can receive one or more detection signals. The controller is configured to determine which detector 80 is issuing the detection signal when receiving the detection signal, and the corresponding sag amount, for example, different sag amounts correspond to different predetermined slack states. In some embodiments, the controller is configured to immediately stop the movement of the elevator car 70. In other embodiments, the controller is configured to limit the movement of the elevator car 70 by reducing the speed of the elevator car 70 and stopping the elevator car 70 at a nearby landing.

[0043] The detector 80 includes one or more of a photoelectric detector 80, a touch device, and an image recognition detector 80; the photoelectric detector 80 includes a laser detector 80 or an infrared detector 80, and the image recognition detector 80 is a dome camera, a gun camera, and / or a patrol camera.

[0044] In some embodiments, the catenary region 31 is photographed periodically by a camera, and the current photograph is compared with the last photograph of the compensation rope 30 of the catenary region 31. Figure 1 and Figure 2 On the lower side of the catenary area 31, there is no compensation rope 30 in the shooting area (ie, the detection area) under a predetermined tensioning state, and a detection signal is issued when the compensation rope 30 is captured by image recognition.

[0045] In some embodiments, the touch device is a pull rope switch touch device, and the pull rope switch touch device is a pull rope bidirectional touch device. The pull rope switch touch device includes a pull rope switch detector 80, a pull rope bracket, an end spring and a fixing device. The pull rope bracket is connected to the pull rope switch detector 80 and one end of the end spring, and the other end of the end spring is connected to the fixing device. When the compensation rope 30 touches the pull rope, the pull rope switch detector 80 will send an alarm detection signal, and the PLC will quickly collect and process the signal through the network and report the signal. The fixing device is a plurality of pull rope load-bearing support rings.

[0046] According to an embodiment of the present disclosure, at least N detection areas are provided by using N detectors 80 on the lower side of the catenary area 31 to detect whether the part of the rope body 32 that was originally in the predetermined tensioning state of each compensation rope 30 still remains in the predetermined tensioning state. The running space of the compensation rope 30 can be monitored in time. If it is detected that any part of the rope body 32 in the catenary area 31 falls into at least one detection area, a detection signal can be sent out to achieve the effect of capturing whether each compensation rope 30 has reached the predetermined relaxation state at any time.

[0047] In some embodiments, reference Figure 1 and Figure 2 , N detectors 80 are located at the bottom of the tensioning device 90 of the elevator; and / or, N detection areas are located at the bottom of the tensioning device 90 of the elevator. In theory, some ropes 32 in a predetermined tensioning state are parallel. When one or more of them are loose, the overhang amount will increase. When the overhang amount reaches any detection area, the corresponding detector 80 is triggered to send a signal. By triggering such a detection signal, it is possible to timely understand whether there is a loose situation, so as to make adjustments in time, and to achieve the effect of accurate detection according to the bottom catenary area 31.

[0048] In some embodiments, reference Figure 1 and Figure 2 The tensioning device 90 includes a first tensioning wheel 91 and a second tensioning wheel 92, and the catenary area 31 is configured as: located between the first tensioning wheel 91 and the second tensioning wheel 92, and any part of the rope body 32 in the catenary area 31 reaches a predetermined tensioning state through the first tensioning wheel 91 and the second tensioning wheel 92.

[0049] Understandable, although Figure 1 and Figure 2Only a single compensating rope 30 is shown in the figure, but the elevator system 100 may include one or more compensating ropes 30. For example, the S compensating ropes 30 include a plurality of ropes or belts. Each of the S compensating ropes 30 is received in a corresponding groove on each of the first tensioning wheel 91 and the second tensioning wheel 92. The first tensioning wheel 91 and the second tensioning wheel 92 apply tensioning force to each compensating rope 30 to reach a predetermined tensioning state. Thus, the accurate detection of the catenary area 31 can be achieved by combining the tensioning characteristics of the tensioning device 90.

[0050] In some embodiments, reference Figure 1 and Figure 2 , any part of the rope body 32 in the predetermined tension state in the catenary area 31 is perpendicular to the gravity direction and is spaced from any one of the N detection areas. The gravity direction may be the direction in which the elevator car 70 moves, such as the descending direction. It can be understood that the aforementioned verticality may include an absolute verticality of 90° and an approximate verticality of nearly 90°.

[0051] In some embodiments, the N detectors 80 include at least one photoelectric sensor. The N detectors 80 may include one-to-one corresponding N photoelectric sensors, which is convenient for procurement and deployment. At least some of them may be photoelectric sensors, and other detectors 80 may use touch devices or image recognition detectors 80. Multiple types of detectors 80 are conducive to reducing false detection and improving detection accuracy.

[0052] In some embodiments, any one of the at least one photosensor includes: a transmitter 81 configured to emit light 83; a receiver 82 configured to receive light 83; wherein the light area between the transmitter 81 and the receiver 82 forms a detection area.

[0053] The light 83 may include a line shape or a curtain shape, and each line area or curtain area is a light area. Figure 1 In the left and right direction shown, i.e., the tensioning direction, the transmitter 81 emits S light rays 83 parallel to the compensation ropes 30 one by one below the S compensation ropes 30, and uses the S line areas to detect which specific compensation rope 30 is out of the predetermined tensioning state. In other embodiments, the transmitter 81 can be perpendicular to Figure 1 The light 83 is sent in the left and right directions, that is, in the direction of penetrating the paper surface, and can be set in the center or on the left and right sides of the catenary area 31.

[0054] Figure 3 A schematic diagram of leaving a predetermined tensioning state according to an embodiment of the present disclosure is schematically shown. Figure 4A The schematic diagram schematically shows a partial rope body 32 of the compensation rope 30 in a predetermined tension state according to an embodiment of the present disclosure. Figure 4BThe schematic diagram schematically shows a partial rope body 32 of the compensation rope 30 in a predetermined slack state according to an embodiment of the present disclosure.

[0055] Reference Figure 3 , the part of the rope body 32 of the upper compensation rope 30 in the catenary area 31 is in a predetermined tensioned state, and the part of the rope body 32 of the lower compensation rope 30 is in a predetermined relaxed state, and D represents the overhang amount. The distance of the detection area relative to the catenary area 31 can be set according to the overhang amount D. The boundary of the catenary area 31 can be determined according to the limit boundary of the part of the rope body 32 of each compensation rope 30, for example, the upper boundary is determined according to the rope body at the top, and further, it is determined according to the section above the rope body.

[0056] exist Figure 4A and Figure 4B In the example of FIG. 8 , the transmitter 81 transmits light 83 toward the receiver 82. When the partial rope bodies 32 of each compensation rope 30 are in a predetermined tension state, the receiver 82 can receive and sense the light 83 from the transmitter 81. Whenever any of the partial rope bodies 32 of each compensation rope 30 hangs down to the detection area, the light 83 is blocked, and the receiver 82 cannot completely receive and sense the light 83 from the transmitter 81, and a detection signal is issued.

[0057] Figure 5A The schematic diagram schematically shows a partial rope body 32 of a compensation rope 30 in a predetermined tension state according to another embodiment of the present disclosure. Figure 5B The schematic diagram schematically shows a partial rope body 32 of a compensation rope 30 in a predetermined slack state according to another embodiment of the present disclosure.

[0058] In some embodiments, the N detection areas are located at the lower side of the catenary area 31, including: the upper boundaries of the N detection areas are successively away from the catenary area 31 along the gravity direction. The upper boundary is a boundary close to the catenary area 31, and the lower boundary is a boundary away from the catenary area 31. The gravity direction is the G direction shown in the figure.

[0059] Reference Figure 5A and Figure 5B The control position of each detection area can be set to different height positions according to the overhang amount to detect different overhang amounts (corresponding to different tension forces).

[0060] Exemplarily, it includes at least one detector 80 switch, each of which corresponds to one or more detectors 80, controlling the detection work of the corresponding detector 80, that is, whether to provide a detection area, flexibly adjusting the detection interval of the overhang amount, and determining different predetermined relaxation states.

[0061] In some embodiments, it can be integrated with the controller of the elevator system 100 to record the number of times the sensor is triggered and the time to form a traceability record to better analyze the process of the elevator compensation rope 30 slack.

[0062] In some embodiments, any two adjacent detection areas among the N detection areas do not intersect each other. Figure 5A and Figure 5B ,This can reduce the resource cost of the provided detection area, reduce the possibility of mutual interference, and improve detection accuracy.

[0063] In some embodiments, the spacing distance of any one of the N detection areas is not equal to at least one of the other spacing distances; or the spacing distances between any two of the N detection areas are equal, and the spacing distance is the distance between adjacent detection areas along the gravity direction. A flexible detection method is provided.

[0064] If any spacing distance is not equal to at least one other spacing distance, it is non-equidistant arrangement, and if any two spacing distances are equal, it is equidistant arrangement. For example, detector 80-1, detector 80-2, detector 80-3...detector 80-N. The spacing distance is the distance between the lower boundary of the upper detection area and the upper boundary of the lower detection area in adjacent detection areas.

[0065] Reference Figure 5A and Figure 5B When part of the rope body 32 of the compensation rope 30 falls into different detection areas, it can correspond to different predetermined slack state levels. For example, detector 80-1, detector 80-2, and detector 80-3 correspond to level 1, level 2, and level 3 predetermined slack states, respectively.

[0066] In some embodiments, level 1 and level 2 refer to a tendency to relax and a relaxation deformation has occurred, and the overhang amount is at an acceptable level, which does not affect the healthy operation of the elevator, indicating that the compensation component needs to be inspected or repaired in the future. Level 3 refers to exceeding the overhang amount threshold, which may affect the healthy operation of the elevator, indicating that the compensation component needs to be inspected or repaired immediately.

[0067] The equidistant arrangement can easily detect the change in the sag of part of the rope body 32 of the compensation rope 30, so as to provide reasonable and reliable detection results, so that the staff can grasp the relaxation situation in time. The non-equidistant arrangement can take into account the various stages of the relaxation of the compensation rope 30. For example, during the working process, the relaxation degree or sag of the compensation rope 30 does not change linearly. The sag value at each iconic stage is determined through historical data, and the location of each detection area is arranged in a targeted manner to provide multi-level alarms, which can reduce the frequency of signal issuance, reduce the amount of data processing, and improve the detection accuracy.

[0068] In some embodiments, the detection device further includes M moving parts. M detectors 80 among the N detectors 80 are mounted on the M moving parts one by one, M is an integer greater than or equal to 1, and M is less than or equal to N; wherein the M moving parts are configured to move the M detectors 80 along the gravity direction so that the detection areas of the M detectors 80 are close to or away from the catenary area 31.

[0069] In some embodiments, the moving part may include a lifting structure, and the lifting structure may be in pairs, respectively deploying a transmitter 81 and a receiver 82. Specifically, it may include any of the following structures, but the present disclosure is not limited thereto:

[0070] The screw drive lifting structure uses the corresponding rotation of the screw and the nut to achieve lifting. The screw rotates to drive the nut (or vice versa) to move up or down along the screw. The plunger lifting structure uses the expansion and contraction of the cylinder or hydraulic cylinder to achieve the lifting effect, which can achieve continuous or step-by-step precise positioning. The chain-driven lifting structure uses the movement of the chain on the saw gear or profile gear to drive the lifting. The chain can continuously change direction in a cycle to achieve linear motion. The roller-driven lifting structure uses the roller to slide along the inclined or vertical surface to drive the lifting. Different heights and loads can be achieved according to the placement of the pulley and the roller. The cable-driven lifting structure uses the metal or fabric rope on the transmission wheel to drive the lifting. The guide rail moving part lifting structure uses the moving part to move on the guide rail to achieve lifting.

[0071] For example, when the value of N is 1, only one detector 80 is set. Multiple detection positions can be set corresponding to different overhang amounts, and when part of the rope body 32 of the compensation rope 30 touches the detection area of ​​the first detection position, a detection signal is issued. If continued monitoring is the main purpose at this time, the detector 80 is moved to the second detection position, and when part of the rope body 32 of the compensation rope 30 touches the detection area of ​​the first detection position, a detection signal is issued. Until the compensation rope 30 is replaced or part of the rope body 32 is restored to the predetermined tension state. Multiple detection areas can be provided by multiple movements of a detector 80, and equidistant arrangement or non-equidistant arrangement can be achieved.

[0072] For example, when the value of N is greater than 1, that is, more than two detectors 80 are provided, and some or all of the N detectors 80 are installed on the moving member. If more than two detectors 80 are installed on the moving member, multiple detection positions can be set corresponding to different overhang amounts, and the moving member can be used to make the detectors 80 relatively move to achieve equidistant arrangement or non-equidistant arrangement.

[0073] According to an embodiment of the present disclosure, a moving part is provided to enable the detector 80 to move and have a dynamic detection function. A larger number of detection areas can be provided with a smaller number of detectors 80, and the spacing distance between the detectors 80 can be changed by movement to adapt to different detection environments and compensation rope objects.

[0074] Figure 6 A flow chart of a method for detecting an elevator compensating rope according to an embodiment of the present disclosure is schematically shown.

[0075] In operation S610, N detectors are arranged;

[0076] In operation S620, N detectors are configured to provide at least N detection areas, wherein the N detection areas are located below the catenary area, the catenary area includes a portion of each of the S compensating ropes in a predetermined tension state, and S and N are both integers greater than or equal to 1;

[0077] In operation S630, in response to any portion of the rope body in the catenary region falling into at least one detection area, the corresponding detector sends a detection signal, and the detection signal indicates that at least one of the S compensation ropes reaches a predetermined slack state.

[0078] In some embodiments, the upper boundaries of the N detection areas are successively moved away from the catenary area along the gravity direction.

[0079] In some embodiments, any two adjacent detection areas among the N detection areas are made non-intersecting.

[0080] In some embodiments, any spacing distance among the N detection areas is not equal to at least one of the other spacing distances; or any two spacing distances among the N detection areas are equal, and the spacing distance is the distance between adjacent detection areas along the direction of gravity.

[0081] In some embodiments, M moving parts are provided; M detectors out of N detectors are installed on the M moving parts one by one; and the M moving parts are configured to move the M detectors along the direction of gravity so that the detection areas of the respective M detectors are close to or away from the catenary area.

[0082] In some embodiments, the N detectors are located at the bottom of the tensioning device of the elevator; and / or the N detection areas are located at the bottom of the tensioning device of the elevator.

[0083] In some embodiments, the catenary region is located between the first tensioning wheel and the second tensioning wheel, and any portion of the cable in the catenary region reaches a predetermined tensioning state through the first tensioning wheel and the second tensioning wheel.

[0084] In some embodiments, any portion of the cable body in a predetermined tension state in the catenary region is perpendicular to the gravity direction and is spaced apart from any one of the N detection regions.

[0085] In some embodiments, at least one photosensor is provided as part or all of the N detectors.

[0086] In some embodiments, any one of the at least one photosensor includes: a transmitter configured to emit light; and a receiver configured to receive light; wherein a light area between the transmitter and the receiver forms a detection area.

[0087] In some embodiments, a compensating rope, a tensioning device and a detection device are provided, and an elevator compensating rope detection method is performed on the compensating rope.

[0088] It will be appreciated by those skilled in the art that the features described in the various embodiments and / or claims of the present disclosure may be combined and / or combined in a variety of ways, even if such combinations and / or combinations are not explicitly described in the present disclosure. In particular, the features described in the various embodiments and / or claims of the present disclosure may be combined and / or combined in a variety of ways without departing from the spirit and teachings of the present disclosure. All of these combinations and / or combinations fall within the scope of the present disclosure.

[0089] The embodiments of the present disclosure are described above. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described above separately, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. The scope of the present disclosure is defined by the attached claims and their equivalents. Without departing from the scope of the present disclosure, those skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A detection device for an elevator compensation rope, comprising: N detectors, providing at least N detection areas, wherein the N detection areas are located below the catenary area, the catenary area includes a portion of the S compensating ropes each in a predetermined tension state, and S and N are both integers greater than or equal to 1; Wherein, the N detectors are configured to send a detection signal if it is detected that any part of the rope body in the catenary area falls into at least one detection area, and the detection signal indicates that at least one of the S compensation ropes has reached a predetermined relaxation state.

2. The detection device according to claim 1, wherein: The N detection areas located at the lower side of the catenary area include: The upper boundaries of the N detection areas are respectively separated from the catenary area in sequence along the gravity direction.

3. The detection device according to claim 2, wherein: Any two adjacent detection areas among the N detection areas do not intersect with each other.

4. The detection device according to claim 3, wherein: Any interval distance of the N detection areas is not equal to at least one of the other interval distances; or The spacing distance between any two of the N detection areas is equal, and the spacing distance is the distance between adjacent detection areas along the gravity direction.

5. The detection device according to any one of claims 1 to 4, wherein: The detection device also includes: M moving parts, M detectors among the N detectors are mounted on the M moving parts in a one-to-one correspondence, M is an integer greater than or equal to 1, and M is less than or equal to N; The M moving parts are configured to move the M detectors along the direction of gravity so that the detection areas of the M detectors are close to or away from the catenary area.

6. The detection device according to claim 1, wherein: The N detectors are located at the bottom of the tensioning device of the elevator; and / or, The N detection areas are located at the bottom of the tensioning device of the elevator.

7. The detection device according to claim 6, wherein: The tensioning device comprises a first tensioning wheel and a second tensioning wheel, and the catenary region is configured as follows: Located between the first tensioning wheel and the second tensioning wheel, any portion of the rope in the catenary area reaches the predetermined tensioning state through the first tensioning wheel and the second tensioning wheel.

8. The detection device according to any one of claims 1 to 4, 6 to 7, wherein: Any portion of the cable body in a predetermined tension state in the catenary region is perpendicular to the direction of gravity and is spaced apart from any one of the N detection regions.

9. The detection device according to any one of claims 1 to 4 and 6 to 7, wherein: The N detectors include at least one photosensor.

10. The detection device according to claim 9, wherein: Any one of the at least one photoelectric sensor comprises: an emitter configured to emit light; a receiver configured to receive the light; Wherein, the light area between the transmitter and the receiver forms a detection area.

11. An elevator compensation device, comprising: Compensation rope; A tensioning device, configured to tension the compensation rope; The detection device according to any one of claims 1 to 10 is configured to detect slackness of the compensation rope.

12. An elevator system, comprising: Elevator car; counterweight; a traction wire rope configured to suspend the elevator car and the counterweight; as well as The compensating device of claim 11, wherein the compensating rope in the compensating device is configured to compensate for the weight of the traction wire rope.

13. A method for detecting an elevator compensating rope, comprising: Arrange N detectors; The N detectors provide at least N detection areas, wherein the N detection areas are located below the catenary area, the catenary area includes a portion of each of the S compensating ropes in a predetermined tension state, and S and N are both integers greater than or equal to 1; In response to any of the partial rope bodies in the catenary area falling into at least one detection area, the corresponding detector sends a detection signal, and the detection signal indicates that at least one of the S compensation ropes has reached a predetermined relaxation state.

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