Lifter steel wire rope separation device and tower drum

Abstract

The embodiment of the invention provides an elevator steel wire rope separation device and a tower drum, and relates to the technical field of elevators. The elevator steel wire rope separating device comprises a moving device and at least one group of separating pieces, one group of separators comprises at least two separators, and each separator corresponds to one steel wire rope; the steel wire rope limiting parts of the separators can hinder or limit shaking of the steel wire ropes, the separators can separate the steel wire ropes, and the steel wire ropes are prevented from being wound or knotted. When the elevator needs to pass, the moving device drives the partition piece to move in the direction away from the steel wire rope, space is vacated for passing of the elevator, and operation of the elevator is not affected.

Description

Technical Field

[0001] The present application relates to the technical field of elevators, and in particular to an elevator wire rope separator and a tower. Background Art

[0002] At present, the wind power industry has officially entered the "large-megawatt high-tower era". Flexible towers, steel-concrete towers, and segmented towers are now the high-support types of large-megawatt units on land. Elevators have become the mainstream product of manned systems in high towers due to their safety, convenience, and efficiency. With the increase in tower height, the current tower height has reached 185m, and the shaking of the tower has also increased, especially for steel-concrete towers. The extremely large tower diameter change design has brought challenges to the normal operation of the elevators.

[0003] like Figure 1 The elevator 5 is equipped with two kinds of steel wire ropes, one is the working steel wire rope 5-1, which is used to bear the load during normal operation; the other is the safety steel wire rope 5-2, which is mainly used to lock the elevator safety lock on the safety steel wire rope when the elevator is overspeeding. Both steel wire ropes are important components of the elevator. The two steel wire ropes are stationary, and the elevator moves up and down along the steel wire ropes.

[0004] However, whether it is a wire rope-guided elevator or a ladder-guided elevator, the large swing of the tower can easily cause entanglement between the safety wire rope and the working wire rope during operation, seriously affecting the safe operation and use efficiency of the elevator, and causing great inconvenience and safety risks to wind farm operation and maintenance personnel.

[0005] How to deal with the problem of wire rope entanglement in high tower elevators is a technical problem to be solved by this application. Summary of the invention

[0006] The purpose of the present application is to provide an elevator wire rope separation device and a tower to solve the problem of wire rope entanglement of high tower elevators in the prior art.

[0007] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions.

[0008] In a first aspect, an embodiment of the present application provides a wire rope separator for an elevator, comprising a moving device and at least one set of separators; a set of separators comprises at least two separators, each separator corresponding to a wire rope;

[0009] The partition comprises a connecting portion and a wire rope limiting portion, wherein the connecting portion is mounted on the moving part of the moving device; the wire rope limiting portion is used to contact with the wire rope of the elevator or surround the wire rope to limit the position of the wire rope within a set range when the wire rope shakes;

[0010] In the first working mode, the moving device drives the group of partitions to move toward the steel wire rope until the steel wire rope limiting portion contacts the steel wire rope or the steel wire rope limiting portion surrounds the steel wire rope;

[0011] In the second working mode, the moving device drives the group of partitions to move away from the wire rope so that the group of partitions are separated from the area passed by the elevator.

[0012] Optionally, the moving device includes a motor, a conveyor belt and a connecting piece;

[0013] The connecting member is installed on the conveyor belt, and the connecting portion of the partition is installed on the connecting member;

[0014] The motor controls the movement of the conveyor belt to achieve the movement of the partition.

[0015] Optionally, the conveyor belt comprises an endless belt, a driving wheel and a driven wheel, the endless belt is sleeved on the driving wheel and the driven wheel to form two suspended sections, the suspended sections of the endless belt are a first section and a second section; the connecting member comprises a first connecting member and a second connecting member;

[0016] In the set of partitions, one partition is installed on the first section via the first connecting member, and another partition is installed on the second section via the second connecting member.

[0017] Optionally, the elevator wire rope separation device further includes a first limit block, a second limit block, a third limit block and a fourth limit block;

[0018] In the first state, the first limit block abuts against the first connecting member, the second limit block abuts against the second connecting member, and the wire rope limit portion contacts the wire rope or surrounds the wire rope;

[0019] In the second state, the third limit block abuts against the first connecting member, the fourth limit block abuts against the second connecting member, and the group of partitions are separated from the area through which the elevator passes.

[0020] Optionally, the wire rope limiting portion of the separator is provided with a through hole and an opening;

[0021] When the set of partitions is close to the steel wire rope, the steel wire rope enters the through hole from the opening;

[0022] When the set of partitions is away from the steel wire rope, the steel wire rope moves out of the through hole through the opening.

[0023] Optionally, one end of the opening away from the through hole has a chamfer, and the passage for the steel wire rope to enter the through hole becomes narrower from wide.

[0024] Optionally, the elevator wire rope separation device further includes a distance sensing device and a controller;

[0025] The controller is connected to the distance sensing device and the moving device respectively;

[0026] The distance sensing device is used to sense the distance of the elevator;

[0027] The controller is used to control the movement of the moving device according to the distance of the elevator:

[0028] When the distance of the lift is greater than a first set distance, the moving device causes the group of partitions to approach the steel wire rope and contact the steel wire rope;

[0029] When the distance of the elevator is less than the second set distance, the moving device moves the group of partitions away from the wire rope, so that the group of partitions are separated from the area where the elevator passes, making room for the elevator to pass;

[0030] The first set distance is greater than, less than, or equal to the second set distance.

[0031] Optionally, the distance sensing device includes an upper distance sensing device and a lower distance sensing device;

[0032] The upper distance sensing device is used to sense the distance when the elevator is descending and above the partition;

[0033] The lower distance sensing device is used to sense the distance when the elevator moves upward and is located below the partition.

[0034] In a second aspect, an embodiment of the present application provides a tower, comprising an elevator and at least one elevator wire rope separator as described in the first aspect.

[0035] Optionally, the tower is provided with at least two elevator wire rope separators.

[0036] Compared with the prior art, this application has the following beneficial effects:

[0037] In the wire rope separation device for an elevator provided in the embodiment of the present application, the wire rope limiter can prevent or limit the shaking of the wire rope, and the multiple separators can separate the multiple wire ropes to prevent the wire ropes from being entangled or knotted with each other. When the elevator needs to pass, the moving device drives the separator to move away from the wire rope to make room for the elevator to pass, without affecting the operation of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 It is a schematic diagram of a lift equipped with two types of steel wire ropes in the prior art;

[0040] Figure 2 A schematic diagram of the shape of a wire rope limiting portion provided in an embodiment of the present application;

[0041] Figure 3 A schematic diagram of the shape of a wire rope limiting portion having a chamfered opening provided in an embodiment of the present application;

[0042] Figure 4 A schematic diagram of a first state of a wire rope separator for an elevator provided in an embodiment of the present application;

[0043] Figure 5 A schematic diagram of a second state of a wire rope separator for an elevator provided in an embodiment of the present application;

[0044] Figure 6 A schematic diagram of a wire rope separation device for an elevator including a bracket provided in an embodiment of the present application;

[0045] Figure 7 A schematic diagram of an elevator wire rope separation device provided in an embodiment of the present application installed on a tower platform;

[0046] Figure 8 A schematic diagram of an elevator moving up and down on an elevator wire rope separator provided in an embodiment of the present application. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. The described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described in the drawings here can be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0049] In the description of this application, it should be noted that relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium.

[0050] When the existing taller tower swings, it is easy to cause the elevator safety wire rope and the working wire rope to become entangled, which brings great inconvenience and safety risks to the wind farm operation and maintenance personnel.

[0051] Research has been conducted on the problem of wire rope winding, and there are currently two main solutions:

[0052] One method is to stop the elevator at the bottom starting position after the wire rope entanglement occurs, forcibly loosen the elevator power wire rope, manually untie the entangled wire ropes, and then operate the elevator upward normally and tighten the power wire rope. However, manually untangling the wire ropes fails to fundamentally solve the problem, and at the same time puts higher requirements on the technical handling capabilities of the on-site elevator users, and there are still safety hazards.

[0053] The other is to set a crossbar at one or more platforms in the tower according to the tower height, spanning the opening of the platform elevator. The crossbar can separate the safety wire rope and the working wire rope. When the elevator runs to this point, the crossbar is stuck on the top of the elevator box and goes up with the elevator. When the elevator goes down, the crossbar falls to the original platform and separates from the elevator. Although compared with the previous solution, it can fundamentally reduce or eliminate the occurrence of wire rope entanglement, but this solution requires the smooth connection between static objects and dynamic objects, and the precision of the tower accessories is very high; at the same time, in order to meet the accuracy of the crossbar when it is placed, the shaking of the tower should not be too large, but the actual working condition is that as the tower height increases, the shaking also increases, which is not conducive to the high-precision placement of the crossbar; before the elevator is installed, the installation of each elevator crossbar needs to be debugged multiple times, which increases the workload during the installation; at the same time, the working conditions during the debugging period are inconsistent with those during the operation period, which will also cause errors in the placement of the crossbar.

[0054] In order to overcome the above problems, an embodiment of the present application provides an elevator wire rope separator, which includes a moving device and at least one group of separators. A group of separators includes at least 2 separators, each separator corresponds to a wire rope, and multiple separators can separate multiple wire ropes from each other to avoid entanglement with each other.

[0055] The moving device includes a moving part and a stationary part, and the stationary part can be fixed to the building where the elevator is located. The partition includes a connecting part and a wire rope limiting part, and the connecting part is installed on the moving part of the moving device.

[0056] The wire rope limiting portion is used to surround the wire rope to limit the position of the wire rope within a set range when the wire rope shakes. In addition to the method of surrounding the wire rope, another method is that the wire rope limiting portion contacts the wire rope and can support the wire rope from at least one side, or three or four sides, which can also play a role in limiting the position of the wire rope.

[0057] The separator may be in the form of a plate. Figure 2 The shape of a wire rope limiter is shown. The wire rope limiter is provided with a circular through hole. The edge of the circular through hole has an opening leading to the edge of the wire rope limiter. The wire rope can enter and exit the circular through hole from the opening. The wire rope limiter can surround the wire rope in the circular through hole. The circular through hole is the set range. When the wire rope shakes, it is confined in the circular through hole. The circular through hole can also be replaced by through holes of other shapes, such as hexagonal, rectangular, etc.

[0058] exist Figure 2 A switch part can also be set at the opening position, and the action of the switch part can be controlled by a controller. When the wire rope needs to enter or move out, the switch part is moved to open the opening. When the position of the wire rope needs to be limited, the switch part is moved to block the opening.

[0059] Figure 3 An opening with a chamfered shape is shown, with the chamfer at the end of the opening away from the through hole. The initial position of the channel for the wire rope to enter the through hole is wider, making it easier for the wire rope to enter the through hole. The channel for the wire rope to enter the through hole becomes narrower, reducing the probability of the wire rope shaking and escaping through the opening.

[0060] The size of the narrowest part of the opening can be slightly larger than the diameter of the wire rope, so that the wire rope can smoothly enter the through hole and reduce the friction between the wire rope and the opening.

[0061] When the wire rope stopper is elastic, the narrowest part of the opening can be slightly smaller than the diameter of the wire rope, and the opening can be stretched to a certain size when the wire rope enters and exits the through hole. This method can reduce the size of the opening and reduce the probability of the wire rope shaking and falling out of the opening.

[0062] refer to Figure 4 and Figure 5 , Figure 4 and Figure 5 The figure shows a top view, in which the steel wire rope 5-3 is a cross section of two steel wire ropes. The steel wire rope 5-3 may refer to the working steel wire rope 5-1 and the safety steel wire rope 5-2. The mobile device has two working modes:

[0063] In the first working mode, such as Figure 4 The moving device drives a group of partitions to move toward the direction close to the steel wire rope 5-3 until the steel wire rope limiting portion contacts the steel wire rope 5-3 or the steel wire rope limiting portion surrounds the steel wire rope 5-3. The movement of a group of partitions toward the direction close to the steel wire rope 5-3 may be that two partitions are close to each other;

[0064] In the second working mode, such as Figure 5 The moving device drives a group of partitions to move away from the wire rope 5-3. At this time, there is enough space around the wire rope 5-3 for the elevator to pass through. A group of partitions leaves the area where the elevator passes. A group of partitions moves away from the wire rope 5-3 so that two partitions move away from each other.

[0065] The moving device may include a motor, a conveyor belt and a connecting piece, wherein the connecting piece is installed on the conveyor belt, and the separator is installed on the connecting piece; the motor controls the movement of the conveyor belt to realize the movement of the separator.

[0066] One embodiment is to have multiple conveyors, each conveyor moves a separate divider. Another embodiment is to have one conveyor, and one conveyor can move two or more dividers at the same time.

[0067] Figure 4 , Figure 5 , Figure 6 An embodiment is shown in which a conveyor belt moves two partitions, such as Figure 6 The conveyor belt includes an endless belt 1-4, a driven wheel 1-3 and a driving wheel, and the driving wheel is driven by a motor 1-10. The motor 1-10 can be controlled by a controller 1-9.

[0068] The annular belt 1-4 is sleeved on the driving wheel and the driven wheel to form two suspended parts, and the suspended parts of the annular belt are the first section 1-4-1 and the second section 1-4-2; the connecting parts include the first connecting part 1-5 and the second connecting part 1-6; in a group of separators, one separator is installed on the first section 1-4-1 through the first connecting part 1-5, and the other separator 1-8 is installed on the second section 1-4-2 through the second connecting part 1-6.

[0069] To better support the dividers and move the dividers, e.g. Figure 6The cutaway part of the separator is shown, and a guide wheel 1-7 can be arranged below the separator and outside the annular belt, and the guide wheel 1-7 slides on the guide rail 1-2. The guide rail provides support for the guide wheel, thereby supporting the separator, and the rolling action of the guide wheel on the guide rail also reduces the resistance to movement.

[0070] When the annular belt 1-4 rotates clockwise, the first section 1-4-1 moves to the right, driving the first connecting member 1-5 and the partition on the left side of the figure to move to the right, and the second section 1-4-2 moves to the left, driving the second connecting member 1-6 and the partition on the right side of the figure to move to the left, that is, the two partitions move closer to each other.

[0071] When the annular belt 1-4 rotates counterclockwise, the first section 1-4-1 moves to the left, driving the first connecting member 1-5 and the partition on the left side of the figure to move to the left, and the second section 1-4-2 moves to the right, driving the second connecting member 1-6 and the partition on the right side of the figure to move to the right, that is, the two partitions move away from each other.

[0072] Regarding the travel of the separator, four limit blocks can be further set, such as Figure 5 The limit blocks 1-11 in the figure are used to limit the left and right limit positions of each separator.

[0073] When the partition moves can be determined according to the position of the elevator, which can be specifically determined by a distance sensing device and a controller.

[0074] The distance sensing device is used to sense the distance of the elevator. The distance of the elevator can refer to the distance between the elevator and the distance sensing device, or the distance between the elevator and the partition. The controller is connected to the distance sensing device and the moving device respectively. The controller is used to control the movement of the moving device according to the distance of the elevator. When the distance between the elevator and the distance sensing device is close, that is, the distance between the elevator and the partition is close, the partition needs to be away from the wire rope to make room for the elevator to pass. Specifically:

[0075] When the distance of the lift is greater than a first set distance, the moving device causes a set of partitions to approach the wire rope and contact the wire rope;

[0076] When the distance of the elevator is less than the second set distance, the moving device moves a group of partitions away from the wire rope and makes room for the elevator to pass; the first set distance can be greater than, less than or equal to the second set distance.

[0077] Two distance sensing devices, an upper distance sensing device and a lower distance sensing device, can be set at the same time, thereby ensuring that the partition can be moved according to the position of the elevator regardless of whether the elevator is located above or below the elevator wire rope partition device.

[0078] Based on the above embodiments, the embodiments of the present application further provide a tower, which includes an elevator and the above elevator wire rope separator.

[0079] In the tower, two or more elevator wire rope separators can be set at different heights to separate two or more wire ropes at different sections, which can better avoid entanglement between the wire ropes.

[0080] A tower platform can be arranged in the tower, and the elevator wire rope separator can be fixed on the tower platform.

[0081] like Figure 6 The elevator wire rope separation device may also include a fixed bracket 1-1, and a connection portion of the fixed bracket may be provided on the tower platform, such as Figure 6 , Figure 7 The elevator wire rope separator 1 can be fixed on the tower platform 7 through a fixed bracket 1-1. Figure 7 In the embodiment, the tower 6 may be a wind turbine tower, the tower platform 7 is further provided with an elevator guardrail 4, the distance sensing device comprises an upper distance sensing device 3 and a lower distance sensing device 2, the upper distance sensing device 3 and the lower distance sensing device 2 may be installed on the elevator guardrail 4, and the distance sensing device may be a sensing probe, such as Figure 8 , both when the lift 5 approaches from above and when the lift 5 approaches from below can be sensed by the sensing probe.

[0082] Combination Figure 8 and Figure 5 , let S be the starting limit distance of the partition operation, V2 be the moving speed of the partition separating, V3 be the moving speed of the partition approaching each other, V1 be the upward speed of the elevator, V4 be the downward speed of the elevator, when the elevator goes up, when the lower sensing probe detects that the top of the elevator is D1 away from the tower platform, the partition starts to move in opposite directions on both sides; when the elevator completes passing through the partition device, the partitions start to move towards each other; when the elevator goes down, when the upper sensing probe detects that the bottom of the elevator is D2 away from the tower platform, the partitions start to move in opposite directions on both sides; when the elevator completely passes through the partition device, the partitions start to move towards each other; then it should satisfy D1>S×V1 / V2, D2>S×V4 / V2.

[0083] In general, this application proposes an intelligent solution to the problem of wire rope entanglement in high-tower elevators. It can separate the wire ropes according to the position of the elevator to ensure the safe operation of the elevator within the full height range of the tower. It has the following advantages:

[0084] First, automation. Some anti-entanglement technical solutions are purely mechanical solutions. This solution is based on automation and intelligence. It uses the principle of automatic induction to effectively separate the working wire rope and the safety wire rope, ensuring the normal operation of the elevator and effectively solving the problem of wire rope entanglement.

[0085] Second, independence. There are no special requirements for the manufacturing accuracy of tower accessories. At the same time, if used for wind farm technical transformation, this method does not rely on the design of the elevator body, and there is no need to make corresponding modifications to the elevator body, which provides convenience for wind farm technical transformation work.

[0086] Third, the solution is cost-effective. During the project implementation, the operator does not need to conduct repeated debugging, thus saving the time cost of on-site construction.

[0087] The above-described device and system embodiments are merely illustrative, and some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment. A person skilled in the art may understand and implement the present embodiment without creative effort.

[0088] The above are only preferred specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wire rope separator for an elevator, characterized in that: It includes a moving device and at least one set of partitions; a set of partitions includes at least 2 partitions, and each partition corresponds to a steel wire rope; The partition comprises a connecting portion and a wire rope limiting portion, wherein the connecting portion is mounted on the moving part of the moving device; the wire rope limiting portion is used to contact with the wire rope of the elevator or surround the wire rope to limit the position of the wire rope within a set range when the wire rope shakes; In the first working mode, the moving device drives the group of partitions to move toward the steel wire rope until the steel wire rope limiting portion contacts the steel wire rope or the steel wire rope limiting portion surrounds the steel wire rope; In the second working mode, the moving device drives the group of partitions to move away from the wire rope so that the group of partitions are separated from the area passed by the elevator.

2. The elevator wire rope separator according to claim 1, characterized in that: The moving device includes a motor, a conveyor belt and a connecting piece; The connecting member is installed on the conveyor belt, and the connecting portion of the partition is installed on the connecting member; The motor drives the conveyor belt to move so as to realize the movement of the partition.

3. The elevator wire rope separator according to claim 2, characterized in that: The conveyor belt comprises an endless belt, a driving wheel and a driven wheel, wherein the endless belt is sleeved on the driving wheel and the driven wheel to form two suspended sections, wherein the suspended sections of the endless belt are a first section and a second section; the connecting member comprises a first connecting member and a second connecting member; In the set of partitions, one partition is installed on the first section via the first connecting member, and another partition is installed on the second section via the second connecting member.

4. The elevator wire rope separator according to claim 3, characterized in that: The elevator wire rope separation device also includes a first limit block, a second limit block, a third limit block and a fourth limit block; In the first state, the first limit block abuts against the first connecting member, the second limit block abuts against the second connecting member, and the wire rope limit portion contacts the wire rope or surrounds the wire rope; In the second state, the third limit block abuts against the first connecting member, the fourth limit block abuts against the second connecting member, and the group of partitions are separated from the area through which the elevator passes.

5. The elevator wire rope separator according to claim 1, characterized in that: The wire rope limiting portion of the separator is provided with a through hole and an opening; When the set of partitions is close to the steel wire rope, the steel wire rope enters the through hole from the opening; When the set of partitions is away from the steel wire rope, the steel wire rope moves out of the through hole through the opening.

6. The elevator wire rope separator according to claim 5, characterized in that: One end of the opening away from the through hole is chamfered, and the passage for the steel wire rope to enter the through hole becomes narrower from wide.

7. The elevator wire rope separator according to claim 1, characterized in that: The elevator wire rope separation device also includes a distance sensing device and a controller; The controller is connected to the distance sensing device and the moving device respectively; The distance sensing device is used to sense the distance of the elevator; The controller is used to control the movement of the moving device according to the distance of the elevator: When the distance of the lift is greater than a first set distance, the moving device causes the group of partitions to approach the steel wire rope and contact the steel wire rope; When the distance of the elevator is less than a second set distance, the moving device moves the group of partitions away from the wire rope, so that the group of partitions are out of the area where the elevator passes; The first set distance is greater than, less than, or equal to the second set distance.

8. The elevator wire rope separator according to claim 7, characterized in that: The distance sensing device comprises an upper distance sensing device and a lower distance sensing device; The upper distance sensing device is used to sense the distance when the elevator is descending and above the partition; The lower distance sensing device is used to sense the distance when the elevator moves upward and is located below the partition.

9. A tower, characterized in that: The invention comprises an elevator and at least one elevator wire rope separator device as claimed in any one of claims 1 to 8.

10. The tower according to claim 9, characterized in that The tower is provided with at least two elevator wire rope separators.

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