Split type traveling cable structure for elevator

Abstract

The application discloses a split type accompanying cable structure for an elevator, which comprises a first line body, which is used for electrically connecting with an elevator car in an outer elevator shaft; and a second line body and an interface station, which are used in cooperation with the first line body; two ends of the second line body in the length direction are respectively used for electrically connecting with an external control system and the interface station; the interface station is arranged on a preset mounting area of a side wall of an upper portion of the elevator shaft; one end of the first line body, which is away from the elevator car, is connected with the interface station; the interface station is used for electrically connecting between the first line body and the second line body, and is used for supporting the first line body, so as to reduce the effective suspension length and the running swing range of the first line body, and to reduce the swing range and dynamic stress concentration of the first line body in the process of the elevator running.

Description

Technical Field

[0001] This invention relates to the field of elevator equipment technology, and in particular to a split-type traveling cable structure for elevators. Background Technology

[0002] The traveling cable is an important component of the elevator system, mainly used for power and signal transmission between the elevator car and the control system in the hoistway. Existing elevators typically use an integral traveling cable, where one end of the cable is fixed to the top of the hoistway and the other end is connected to the elevator car. The cable is suspended over a long distance and reciprocates as the car moves up and down.

[0003] With the widespread application of super high-rise buildings and elevators with large lifting heights, the suspension length of traveling cables is constantly increasing. Due to their large weight, integral traveling cables are prone to large swing amplitude and dynamic tensile load during operation. Especially during elevator start-up, shutdown, or high-speed operation, the cable is prone to shaking and collision and friction with the guide rails, supports, or other components in the shaft. This not only aggravates the wear of the sheath or protective layer but may also cause fatigue damage to the internal conductors, thereby affecting the service life and operational reliability of the traveling cable.

[0004] Therefore, how to reduce the effective suspension length of the traveling cable, optimize the cable stress state, reduce operational sway and dynamic stress concentration, and improve the operational stability and service life of the traveling cable has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides a split-type traveling cable structure for elevators.

[0006] The technical solution adopted by this invention to solve its technical problem is: This invention provides a split-type traveling cable structure for elevators, including a first cable for electrical connection with the elevator car inside the external elevator shaft; it also includes a second cable and an interface station for use with the first cable. The two ends of the second cable are respectively used for electrical connection with the external control system and the interface station. The interface station is set in a preset installation area on the upper side wall of the elevator shaft. The end of the first cable away from the elevator car is connected to the interface station. The interface station is used for electrical connection between the first cable and the second cable, and provides load-bearing support for the first cable to reduce the effective suspension length and swing amplitude of the first cable.

[0007] Preferably, the interface station includes a load-bearing structure and a relay connection structure. The load-bearing structure is fixedly installed on the side wall of the elevator shaft. The relay connection structure works in conjunction with the load-bearing structure to provide electrical connection between the first and second cables. The load-bearing structure supports the relay connection structure and the first cable, and bears the tensile load generated during the operation of the first cable. The interface station is located in the height region of the elevator shaft from the top to 1 / 5 to 1 / 3 of its height. The load-bearing structure is fixed to the side wall of the elevator shaft and bears the tensile load of the first cable. The relay connection structure is responsible for the electrical connection between the first and second cables, shifting the cable stress point from the top of the shaft to a slightly upper middle position. This transforms the original single-segment long suspension structure into a segmented load-bearing structure, which helps reduce the suspension length and self-weight load of the first cable, reduces operational sway and dynamic tensile stress. At the same time, arranging the interface station in the height region from the top to the bottom balances vibration reduction and on-site maintenance convenience, avoids insufficient length of the first cable to meet elevator operation requirements, and improves the overall operational stability of the split-type traveling cable.

[0008] Preferably, the relay connection structure has a disassembly opening facing the maintenance side. The maintenance side is located on the side of the relay connection structure away from the elevator shaft. The end of the first wire away from the elevator car is located on the relay connection structure and faces the disassembly opening. The load-bearing structure is used to support the first wire. The disassembly opening is located on the maintenance side, and the end of the first wire faces the disassembly opening, so that the connection end can be directly exposed to the maintenance area. Wiring, maintenance, or replacement can be completed without extensive disassembly of the interface station. At the same time, the load-bearing structure bears the mechanical load of the first wire, so that the electrical connection part mainly bears the conductive function rather than the tensile force. This can avoid the connection terminal from loosening, deforming, or poor contact due to long-term stress, thereby improving the reliability of the interface connection and the efficiency of later maintenance.

[0009] Preferably, the first wire body includes a core assembly and tensile reinforcing ribs. The core assembly and tensile reinforcing ribs are covered with a protective layer. The tensile reinforcing ribs extend along the length of the first wire body to share the axial tensile stress during the operation of the first wire body. The tensile reinforcing ribs and the core assembly are encapsulated in the protective layer and extend along the entire length of the first wire body. This allows the axial tensile force generated during operation to be shared by the reinforcing ribs, rather than being concentrated on the conductor core. This can reduce problems such as conductor elongation, strand breakage, and fatigue cracking of the insulation layer, and improve the durability of the first wire body during long-term operation while ensuring its flexibility.

[0010] Preferably, the tensile reinforcement is made of liquid crystal aramid fiber, which is formed by the condensation polymerization of aromatic hydroxycarboxylic acid monomers. The axial elastic modulus of the tensile reinforcement is greater than that of the radial elastic modulus. The liquid crystal aramid fiber has a highly oriented molecular chain structure, which can provide high tensile strength in the axial direction while maintaining a certain degree of flexibility in the radial direction. This allows the tensile reinforcement to effectively bear the longitudinal load when the cable is suspended without significantly increasing the overall lateral bending resistance, thus balancing high load-bearing capacity and good bending performance, and reducing material fatigue damage caused by long-term cyclic motion.

[0011] Preferably, the bending stiffness of the first cable is less than that of the second cable. Tensile reinforcement ribs and rigid support ribs are respectively provided on the first and second cables. The bending modulus of the tensile reinforcement ribs is less than that of the rigid support ribs. The tensile reinforcement ribs are used to improve the tensile performance of the first cable during its movement and maintain its bending flexibility. The rigid support ribs are used to improve the structural stability and bending stiffness of the second cable in the length direction. The first cable is designed as a low-bending-stiffness structure, allowing it to swing flexibly with the car's movement. The second cable relies on the rigid support ribs to maintain high structural stability, reducing bending deformation of the fixed section due to its own weight or environmental effects. Simultaneously, different modulus reinforcement components correspond to different functional requirements, giving the moving section flexibility and the fixed section support, forming a differentiated mechanical configuration and improving the dynamic adaptability of the entire split-type traveling cable system.

[0012] Preferably, the second line body includes a power line group and a power line group. The power line group and the power line group are covered with a sheath. The sheath is provided with a groove. The groove is recessed along the thickness direction of the sheath on one side of the sheath and is located between the power line group and the power line group. The groove is provided between the power line group and the power line group to facilitate the separation of the power line group and the power line group by the operator.

[0013] Preferably, the groove includes a first groove and a second groove. The first groove has a trapezoidal cross-section, and the second groove has a triangular cross-section. A bell-shaped third groove is provided between the first and second grooves. The multi-level irregular groove structure can form a gradual force transition. The trapezoidal first groove facilitates the introduction of the limiting structure, the triangular second groove improves the end positioning accuracy, and the bell-shaped third groove forms an expanded diameter locking space, so that the external component can obtain a more stable snap-fit ​​state after insertion, reducing the possibility of disengagement or movement under long-term vibration environment and improving the vibration resistance of the connection structure.

[0014] Preferably, the split-type traveling cable structure also includes a fastening component used in conjunction with the second cable. The fastening component is made of a deformable material and includes an arc-shaped pressing surface that adapts to the outer peripheral surface of the second cable. The fastening component is C-shaped and used to cover the second cable. The fastening component adopts an elastic and deformable structure, which can form a covering and clamping of the second cable through its own rebound force, so that installation and disassembly can be completed without additional complex fastening mechanisms. The arc-shaped pressing surface is in close contact with the outer peripheral surface of the cable, which can distribute the clamping pressure and avoid local damage to the sheath, thus meeting the fixation requirements while protecting the outer layer of the cable.

[0015] Preferably, the fastener is provided with a limiting protrusion, which is used to accommodate the groove and is adapted to the opening shape of the groove. The groove diameter of the third groove is larger than the groove diameter of the first groove near the third groove. After the limiting protrusion is inserted into the groove, it needs to pass through the narrower first groove to enter the enlarged third groove, thereby forming a mechanical locking relationship similar to a snap-fit. This can not only restrict the movement of the fastener along the length of the cable, but also prevent it from accidentally dislodging under vibration or impact. The enlarged diameter design of the third groove can also provide space for the limiting protrusion, making the assembly process smoother and taking into account both connection firmness and disassembly.

[0016] The beneficial effects of this invention are: This design divides the originally continuous suspended traveling cable into a split structure consisting of a first line body and a second line body. This shortens the effective suspension length of the first line body, optimizes the stress path, and reduces the transmission of self-weight load in the long suspension section. It also reduces the sway amplitude and dynamic stress concentration of the first line body during elevator operation, and reduces collisions or friction wear between the cable and shaft components. This improves the overall operational stability and service life of the traveling cable, and is beneficial for the installation, maintenance, and reliable power supply of traveling cables in elevators with large lifting heights. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the planar structure of the split-type traveling cable structure of the present invention; Figure 2 This is a schematic diagram of the split-type traveling cable structure of the present invention; Figure 3 This is a schematic diagram of the structure of the first linear body of the present invention; Figure 4 This is a schematic diagram of the structure of the second linear body of the present invention; Figure 5 This is a schematic diagram of the structure of the second line body and the fastening component of the present invention.

[0020] The reference numerals in the figures include: 1. First line body; 2. Second line body; 3. Interface station; 4. Fastener; 11. Core assembly; 12. Sheath; 13. Tensile reinforcement; 21. Power line assembly; 22. Power line assembly; 23. Sheath; 24. Trench; 241. First trench; 242. Second trench; 243. Third trench; 31. Load-bearing structure; 32. Relay connection structure; 41. Limiting protrusion. Detailed Implementation

[0021] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0022] In the description of this application, terms such as "first" and "second" are used only to distinguish different objects, not to describe a specific order. Furthermore, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, "at least one" refers to one or more, and "multiple" refers to two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent: a, b, c; a and b; a and c; b and c; or a and b and c. Where a, b, and c can be single or multiple.

[0023] The terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0024] In this application, the words "exemplary" or "for example" are used to indicate that something is an example, illustration, or illustration. Any embodiment or design described as "exemplary," "for example," or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of the words "exemplary," "for example," or "for example" is intended to present the relevant concepts in a specific manner.

[0025] It is understood that in this application, "when," "if," and "if" all refer to the device making a corresponding action under certain objective circumstances, and are not time-limited, nor do they require the device to make a judgment action when it is implemented, nor do they imply any other limitations.

[0026] In this application, the use of singular designations for elements is intended to represent "one or more" rather than "one and only one," unless otherwise specified.

[0027] It is understood that in the embodiments of this application, "B corresponding to A" means that there is a correspondence between A and B, and B can be determined based on A. Determining B based on A does not mean that B can be determined solely based on A; B can also be determined based on A and / or other information.

[0028] The following is a brief introduction to some relevant content, terms, or nouns involved in this application.

[0029] Example 1 Reference Figures 1 to 5 A split-type traveling cable structure for elevators includes a first cable 1 for electrical connection with the elevator car inside the external elevator shaft; it also includes a second cable 2 and an interface station 3 for use in conjunction with the first cable 1. The two ends of the second cable 2 along its length are respectively used for electrical connection with the external control system and the interface station 3. The interface station 3 is set in a preset installation area on the upper side wall of the elevator shaft. The end of the first cable 1 away from the elevator car is connected to the interface station 3. The interface station 3 is used for electrical connection between the first cable 1 and the second cable 2, and provides load-bearing support for the first cable 1 to reduce the effective suspension length and swing amplitude of the first cable 1.

[0030] Through the above structural design, the originally continuous suspended traveling cable is divided into a split structure consisting of a first cable body 1 and a second cable body 2. This shortens the effective suspension length of the first cable body 1, optimizes the stress path, and reduces the transmission of self-weight load in the long suspension section. This reduces the sway amplitude and dynamic stress concentration of the first cable body 1 during elevator operation, and reduces collisions or frictional wear between the cable and shaft components. This improves the overall operational stability and service life of the traveling cable, and is beneficial for the installation, maintenance, and reliable power supply of traveling cables in elevators with large lifting heights.

[0031] Specifically, the interface station 3 includes a load-bearing structure 31 and a relay connection structure 32. The load-bearing structure 31 is fixedly installed on the side wall of the elevator shaft. The relay connection structure 32 works in conjunction with the load-bearing structure 31 for electrical connection between the first conductor 1 and the second conductor 2. The load-bearing structure 31 supports the relay connection structure 32 and the first conductor 1, and bears the tensile load generated during the operation of the first conductor 1. The interface station 3 is located in the height region of the elevator shaft from the top to 1 / 5 to 1 / 3 of its height. The load-bearing structure 31 is fixed to the side wall of the elevator shaft and bears the tensile load of the first conductor 1. The relay connection structure 32 is responsible for the electrical connection between the first line body 1 and the second line body 2, so that the stress point of the cable is transferred from the top of the shaft to the upper middle position. The original single-segment long suspension structure is transformed into a segmented load-bearing structure, which helps to reduce the suspension length and self-weight load of the first line body 1, reduce the swaying and dynamic tensile stress during operation. At the same time, the interface station 3 is arranged in the height area of ​​1 / 5 to 1 / 3 of the height from the top, which can take into account both the vibration reduction effect and the convenience of on-site maintenance, and avoid the first line body 1 being too short to meet the elevator operation, thereby improving the overall operational stability of the split traveling cable.

[0032] A tension sensor is provided on the load-bearing structure 31. The tension sensor is used to detect the tension value applied to the load-bearing structure by the first line body 1. The tension sensor is connected to the external elevator control system signal and outputs a warning signal when the tension value exceeds the preset threshold.

[0033] Preferably, the tension sensor is a ring strain gauge sensor, which is sleeved on the first wire body 1. The inner diameter of the ring strain gauge sensor is adapted to the outer circumferential surface of the first wire body 1, and is used to detect the axial tensile load transmitted from the first wire body 1 to the load-bearing structure 31.

[0034] Since the load-bearing structure 31 bears the mechanical load of the first wire body 1, while the relay connection structure 32 basically does not bear axial tension, the axial tension value detected by the tension sensor 34 can truly reflect the operating stress state of the first wire body 1. When the tensile reinforcement 13 inside the first wire body 1 experiences material fatigue, creep elongation, or local fracture due to long-term follow-up motion, the ability of the tensile reinforcement 13 to share the axial tensile load gradually decreases. The load originally borne by the tensile reinforcement 13 is gradually transferred to the core assembly 11, thereby causing a change in the axial tension value transmitted from the first wire body 1 to the load-bearing structure 31.

[0035] Preferably, the external elevator control system has a tension threshold range, which includes an upper threshold and a lower threshold. When the axial tension value detected by the tension sensor 34 exceeds the upper threshold, it indicates that the tensile reinforcement rib 13 has experienced significant fatigue or local failure, the core assembly 11 is bearing a tensile load exceeding the design range, and the connection terminal faces the risk of detachment. At this time, the elevator control system outputs a first core overload warning signal, prompting maintenance personnel to promptly inspect or replace the first core 1. When the axial tension value detected by the tension sensor 34 is lower than the lower threshold, it indicates that the first core 1 is abnormally loose, possibly due to local breakage or loose connection. At this time, the elevator control system outputs a first core looseness warning signal.

[0036] Meanwhile, since the relay connection structure 32 does not bear axial tensile force, the change in tensile force value monitored by the tension sensor 34 is decoupled from the contact state of the electrical connection terminals at the relay connection structure 32—that is, the change in tensile force value mainly reflects the state change of the main body structure of the first line 1, rather than the assembly state change of the connection terminals. Therefore, through long-term continuous monitoring by the tension sensor 34, it is possible to distinguish between two different failure modes: "aging of the first line body" and "loosening of the connection terminals," avoiding unnecessary maintenance operations due to unclear judgment, and improving the accuracy of fault diagnosis and maintenance efficiency.

[0037] Preferably, the tension sensor 34 is a fiber optic grating type tension sensor, which communicates with the external elevator control system through fiber optic signals. The fiber optic signal transmission method can avoid the interference of the electromagnetic environment in the elevator shaft on the detection signal, thereby improving the reliability and stability of the monitoring data.

[0038] Preferably, the load-bearing structure 31 and the relay connection structure 32 are connected by load isolation. The axial tensile load generated by the first line body 1 is preferentially transferred to the load-bearing structure 31, while the relay connection structure 32 mainly undertakes the electrical connection function, so that the mechanical load and the conductive connection are decoupled from each other.

[0039] Those skilled in the art generally believe that to improve the reliability of electrical connections, intermediate connection nodes should be minimized to maintain a continuous overall cable structure. However, the inventors have discovered that in the case of long-distance suspension in ultra-high-rise elevators, a continuous overall structure can cause the connection ends to be subjected to large dynamic tensile loads for extended periods, which can easily lead to conductor fatigue and wear problems.

[0040] By setting the load-bearing structure 31 to bear the suspension load of the first line body 1, the present invention makes the relay connection structure 32 basically not bear the axial tension, and only bear the function of transmitting electrical signals and power. With the addition of relay nodes, the failure probability of the connection part is reduced and the length of the first line body 1 is shortened, which improves the stability of electrical connection and long-term operational reliability. Even when the first line body 1 is replaced in the future, the cost of maintenance and replacement is also lower.

[0041] Specifically, the relay connection structure 32 has a disassembly and assembly opening facing the maintenance side. The maintenance side is located on the side of the relay connection structure 32 away from the elevator shaft. The end of the first wire 1 away from the elevator car is located on the relay connection structure 32 and faces the disassembly and assembly opening. The load-bearing structure 31 is used to support the first wire 1. The disassembly and assembly opening is located on the maintenance side, and the end of the first wire 1 is arranged facing the disassembly and assembly opening, so that the connection end can be directly exposed to the maintenance area. Wiring, maintenance or replacement can be completed without extensive disassembly of the interface station. At the same time, the load-bearing structure 31 bears the mechanical load of the first wire 1, so that the electrical connection part mainly bears the conductive function rather than the tensile force. This can avoid the connection terminal from loosening, deforming or poor contact due to long-term stress, and improve the reliability of the interface connection and the efficiency of later maintenance.

[0042] Specifically, the first wire body 1 includes a core assembly 11 and tensile reinforcing ribs 13. The core assembly 11 and tensile reinforcing ribs 13 are covered by a protective layer 12. The tensile reinforcing ribs 13 extend along the length of the first wire body 1 and are used to share the axial tensile stress during the operation of the first wire body 1. The tensile reinforcing ribs 13 and the core assembly 11 are encapsulated together in the protective layer 12 and extend along the entire length of the first wire body 1. This allows the axial tensile force generated during operation to be shared by the reinforcing ribs, rather than being concentrated on the conductor core. This can reduce problems such as conductor elongation, strand breakage, and insulation fatigue cracking, and improve the durability of the first wire body 1 during long-term operation while ensuring its flexibility.

[0043] Specifically, the tensile reinforcement 13 is made of liquid crystal aramid fiber, which is formed by the condensation polymerization of aromatic hydroxycarboxylic acid monomers. The axial elastic modulus of the tensile reinforcement 13 is greater than the radial elastic modulus. The liquid crystal aramid fiber has a highly oriented molecular chain structure, which can provide high tensile strength in the axial direction, while maintaining a certain degree of flexibility in the radial direction. This allows the tensile reinforcement 13 to effectively bear the longitudinal load when the cable is suspended, without significantly increasing the overall lateral bending resistance. Thus, it balances high load-bearing capacity and good bending performance, and reduces material fatigue damage caused by long-term cyclic motion.

[0044] Liquid crystal aramid fibers are formed by the condensation polymerization of 4-hydroxybenzoic acid and 6-hydroxynaphthalene-2-carboxylic acid.

[0045] Specifically, the bending stiffness of the first cable body 1 is less than that of the second cable body 2. Tensile reinforcing ribs 13 and rigid support ribs 25 are respectively provided on the first cable body 1 and the second cable body 2. The bending modulus of the tensile reinforcing rib 13 is less than that of the rigid support rib 25. The tensile reinforcing rib 13 is used to improve the tensile performance of the first cable body 1 during its movement and maintain its bending flexibility. The rigid support rib 25 is used to improve the structural stability and bending stiffness of the second cable body 2 along its length. The first cable body 1 is designed as a low bending stiffness structure, allowing it to swing flexibly with the car's movement. The second cable body 2 maintains high structural stability thanks to the rigid support rib 25, reducing bending deformation of the fixed section due to its own weight or environmental effects. Simultaneously, different modulus reinforcing components correspond to different functional requirements, giving the moving section flexibility and the fixed section support, forming a differentiated mechanical configuration and improving the dynamic adaptability of the entire split-type traveling cable system.

[0046] The tensile reinforcing rib 13 can also be spirally arranged on the first wire body 1. The tangent of the tensile reinforcing rib 13 forms an angle of 5° to 20° with the length direction of the first wire body 1. When the first wire body 1 is subjected to axial tensile force, the tensile reinforcing rib 13 first undergoes spiral unfolding deformation, thereby absorbing part of the impact energy and reducing the instantaneous stress on the conductor core.

[0047] Specifically, the second line body 2 includes a power line group 21 and a power line group 22. The power line group 21 and the power line group 22 are covered by a sheath 23. The sheath 23 is provided with a groove 24. The groove 24 is recessed along the thickness direction of the sheath 23 on one side of the sheath 23 and is located between the power line group 21 and the power line group 22. The groove 24 is disposed between the power line group 21 and the power line group 22 to facilitate the separation of the power line group 21 and the power line group 22 by the operator.

[0048] Of course, in other technical solutions, the second line body 2 may also include other line groups, and the groove body 24 is located between two adjacent line groups.

[0049] Specifically, the groove 24 includes a first groove 241 and a second groove 242. The first groove 241 has a trapezoidal cross-section, and the second groove 242 has a triangular cross-section. A bell-shaped third groove 243 is provided between the first groove 241 and the second groove 242. The multi-level irregular groove structure can form a progressive force transition. The trapezoidal first groove 241 facilitates the introduction of the limiting structure, the triangular second groove 242 improves the end positioning accuracy, and the bell-shaped third groove 243 forms an expanded diameter locking space, so that the external component can obtain a more stable snap-fit ​​state after insertion, reducing the possibility of disengagement or movement under long-term vibration environment and improving the vibration resistance of the connection structure.

[0050] Specifically, the split-type traveling cable structure also includes a fastening component 4 used in conjunction with the second cable body 2. The fastening component 4 is made of a deformable material and includes an arc-shaped pressing surface that adapts to the outer circumferential surface of the second cable body 2. The fastening component 4 is C-shaped and used to cover the second cable body 2. The fastening component 4 adopts an elastic and deformable structure, which can form a covering and clamping of the second cable body 2 through its own rebound force. Installation and disassembly can be completed without additional complex fastening mechanisms. The arc-shaped pressing surface is in close contact with the outer circumferential surface of the cable, which can disperse the clamping pressure and avoid local damage to the sheath. It meets the fixing requirements while also protecting the outer layer of the cable.

[0051] Optionally, the first line body 1 is provided with a fastening element 4 in an array, and the first line body 1 is provided with a groove 24 for cooperating with the fastening element 4. The fastening element 4 located in the middle of the first line body 1 is provided with a threaded hole, through which a damping counterweight can be installed on the fastening element 4. Of course, a snap-fit ​​method can also be used to achieve the connection. The mass of the damping counterweight is matched with the swing characteristics of the first line body 1. When the first line body 1 swings, the damping counterweight generates an inertial response to offset part of the swing energy, thereby reducing the swing amplitude of the first line body 1 and improving the stability of the elevator when running at high speed.

[0052] Specifically, the fastener 4 is provided with a limiting protrusion 41, which is used to accommodate the groove 24 and is adapted to the opening shape of the groove 24. The groove diameter of the third groove 243 is larger than the groove diameter of the first groove 241 near the third groove 243. After the limiting protrusion 41 is inserted into the groove 24, it needs to pass through the narrower first groove 241 to enter the enlarged third groove 243, thereby forming a mechanical locking relationship similar to a snap-fit. This can restrict the fastener 4 from moving along the length of the cable and prevent it from accidentally coming off under vibration or impact. The enlarged diameter design of the third groove 243 can also provide space for the limiting protrusion 41, making the assembly process smoother and taking into account both the connection firmness and disassembly.

[0053] Preferably, the damping counterweight is located on the end of the fastening member 4 away from the limiting protrusion 41, that is, on the side of the first line body 1 away from the groove body 24.

[0054] As a supplement and synergy to the aforementioned tensile reinforcing rib 13, a protective rope 14 is also provided on the outer periphery of the first linear body 1, the protective rope 14 extending along the length direction of the first linear body 1. The two ends of the protective rope 14 are respectively fixedly connected to the load-bearing structure 31 of the elevator car and the interface station 3, so that the protective rope 14 and the first linear body 1 form a parallel load-bearing path.

[0055] Preferably, the tensile strength of the protective rope 14 is greater than that of the first wire 1, and the elastic elongation of the protective rope 14 is less than that of the first wire 1. When the first wire 1 is subjected to an axial tensile load, the protective rope 14 preferentially bears part of the tensile load, thereby reducing the axial tension transmitted to the relay connection structure 32 and preventing the connection terminal of the first wire 1 from loosening or detaching due to long-term stress.

[0056] Preferably, the protective rope 14 has a preset initial tension in the assembled state, which allows the protective rope 14 to bear 20% to 40% of the weight of the first conductor 1 when it is in an unloaded state. By setting the preset initial tension, when the elevator generates an impact load, the protective rope 14 can withstand the instantaneous impact force before the core group 11 and the tensile reinforcement rib 13 of the first conductor 1, thus playing a buffering and protective role.

[0057] Preferably, the protective rope 14 is provided with a plurality of connection points 141 at intervals along the length direction of the first line body 1. Each connection point 141 constrains the relative position of the protective rope 14 and the first line body 1, so that the protective rope 14 and the first line body 1 maintain a synchronous movement state. The spacing between adjacent connection points 141 decreases as the length of the first line body 1 increases, that is, the spacing between connection points 141 near the elevator car end of the first line body 1 is smaller than the spacing between connection points 141 near the interface station 3 end, so as to increase the constraint density of the lower part of the first line body 1 and enhance the control of the swing shape of the first line body 1.

[0058] Example 2 Embodiment 2 of this application can be implemented alone or in combination with Embodiment 1 described above, and this application does not impose any restrictions.

[0059] The first linear body 1 is provided with a swing damping component, which includes a conductive damping ring 14, an electromagnetic shielding layer 15, and a magnetic component 33, which is a permanent magnet array.

[0060] The conductive damping ring 14 is disposed on the outer periphery of the first linear body 1 and has a heat insulation layer between it and the first linear body 1. It is fixed to the outer side of the protective layer 12 or the fastener 4. The conductive damping ring 14 can be C-shaped. There are several conductive damping rings 14, and the several conductive damping rings 14 are spaced apart along the length direction of the first linear body 1. The electromagnetic shielding layer 15 is disposed between the outer periphery of the protective layer 12 or the fastener 4 and the conductive damping ring 14. The electromagnetic shielding layer 15 extends continuously along the length direction of the first linear body 1. The magnetic component 33 is fixedly disposed on the side wall of the elevator shaft and maintains a preset distance from the conductive damping ring 14.

[0061] Multiple magnetic components 33 can also be spaced along the possible swing path of the first linear body 1 to form multiple magnetic field action areas, so that the conductive damping ring 14 continuously passes through multiple magnetic field areas during the swing process, thereby improving the swing energy dissipation efficiency.

[0062] Preferably, the electromagnetic shielding layer 15 is disposed on the outer periphery of the sheath 12 and located between the conductive damping ring 14 and the sheath 12, and can be grounded.

[0063] Preferably, the conductive damping ring 14 is made of copper alloy, aluminum alloy or other highly conductive material; the electromagnetic shielding layer 15 is made of metal braided mesh, metal foil layer or conductive composite material.

[0064] When the first line body 1 swings laterally during elevator operation, the conductive damping ring 14 moves relative to the magnetic component 33 and periodically cuts the magnetic field lines. According to the principle of electromagnetic induction, an induced current is generated inside the conductive damping ring 14. The magnetic field formed by the induced current is opposite to the direction of movement of the conductive damping ring 14, thereby forming an electromagnetic damping force that resists the swing.

[0065] Since the direction of the electromagnetic damping force is always opposite to the direction of the swing speed, it can continuously consume the mechanical energy of the first wire body 1 during the swing process, so that the swing energy gradually decays, reducing the swing amplitude of the first wire body 1 and reducing the possibility of collision and friction wear between it and the internal components of the well.

[0066] Furthermore, the electromagnetic shielding layer 15 is located between the first wire body 1 and the conductive damping ring 14, and is used to block the electromagnetic field generated by the conductive damping ring 14 and the magnetic component 33 from propagating to the wire core group 11, thereby reducing the impact on power transmission signals and control communication signals and improving the signal transmission stability during elevator operation.

[0067] Compared with mechanical contact type swing limit structure, this embodiment uses non-contact electromagnetic damping to reduce vibration of the first line body 1. There is no need to set up friction components that are in continuous contact with the first line body 1, so there is no additional wear and no need to periodically adjust the contact gap. While ensuring the vibration reduction effect, it improves the long-term operational reliability.

[0068] The above descriptions provide one or more embodiments in conjunction with specific details, but do not imply that the specific implementation of the present invention is limited to these descriptions. Any methods or structures that are similar to or identical to those of the present invention, or any technical deductions or substitutions made based on the concept of the present invention, should be considered within the scope of protection of the present invention.

Claims

1. A split-type traveling cable structure for elevators, comprising a first conductor (1), the first conductor (1) being used for electrical connection with the elevator car inside the external elevator shaft; characterized in that: It also includes a second line body (2) and an interface station (3) for use in conjunction with the first line body (1). The two ends of the second line body (2) in the length direction are used to connect to the external control system and the interface station (3) respectively. The interface station (3) is set in the preset installation area on the upper side wall of the elevator shaft. The end of the first line body (1) away from the elevator car is connected to the interface station (3). The interface station (3) is used to realize the electrical connection between the first line body (1) and the second line body (2) and to provide load-bearing support for the first line body (1) in order to reduce the effective suspension length of the first line body (1).

2. The split-type traveling cable structure for elevators according to claim 1, characterized in that: The interface station (3) includes a load-bearing structure (31) and a relay connection structure (32). The load-bearing structure (31) is fixedly installed on the side wall of the elevator shaft. The relay connection structure (32) works with the load-bearing structure (31) to realize the electrical connection between the first line body (1) and the second line body (2). The load-bearing structure (31) is used to support the relay connection structure (32) and the first line body (1) and bear the tensile load generated during the operation of the first line body (1). The interface station (3) is located in the area from the top to the bottom 1 / 5 to 1 / 3 of the elevator shaft height direction.

3. The split-type traveling cable structure for elevators according to claim 2, characterized in that: The relay connection structure (32) has a disassembly opening facing the maintenance side. The maintenance side is located on the side of the relay connection structure (32) away from the elevator shaft. The end of the first line body (1) away from the elevator car is located on the relay connection structure (32) and facing the disassembly opening. The load-bearing structure (31) is used to provide load-bearing support for the first line body (1).

4. The split-type traveling cable structure for elevators according to claim 2, characterized in that: The first line body (1) includes a core assembly (11) and a tensile reinforcing rib (13). The core assembly (11) and the tensile reinforcing rib (13) are covered with a protective layer (12). The tensile reinforcing rib (13) extends along the length of the first line body (1) and is used to share the axial tensile stress of the first line body (1) during its operation.

5. The elevator split-type traveling cable structure according to claim 4, characterized in that: The tensile reinforcing bar (13) is made of liquid crystal aramid polyester fiber, which is formed by the condensation polymerization of aromatic hydroxycarboxylic acid monomers. The axial elastic modulus of the tensile reinforcing bar (13) is greater than the radial elastic modulus.

6. The elevator split-type traveling cable structure according to claim 2, characterized in that: The bending stiffness of the first line body (1) is less than that of the second line body (2). The first line body (1) and the second line body (2) are respectively provided with tensile reinforcing ribs (13) and rigid support ribs (25). The bending modulus of the tensile reinforcing ribs (13) is less than that of the rigid support ribs (25). The tensile reinforcing ribs (13) are used to improve the tensile performance of the first line body (1) during its operation and maintain its bending flexibility. The rigid support ribs (25) are used to improve the structural stability and bending stiffness of the second line body (2) in the length direction.

7. The split-type traveling cable structure for elevators according to claim 1, characterized in that: The second line body (2) includes a power line group (21) and a power line group (22). The power line group (21) and the power line group (22) are covered with a sheath (23). The sheath (23) is provided with a groove (24). The groove (24) is recessed along the thickness direction of the sheath (23) on one side of the sheath (23) and is located between the power line group (21) and the power line group (22).

8. The elevator split-type traveling cable structure according to claim 7, characterized in that: The trough (24) includes a first trough (241) and a second trough (242). The first trough (241) has a trapezoidal cross section, and the second trough (242) has a triangular cross section. A bell-shaped third trough (243) is provided between the first trough (241) and the second trough (242). The first trough (241) and the second trough (242) are both connected to the third trough (243).

9. A split-type traveling cable structure for elevators according to claim 8, characterized in that: The split-type traveling cable structure also includes a fastening element (4) used in conjunction with the second cable body (2). The fastening element (4) is made of a deformable material and includes an arc-shaped pressing surface that is adapted to the outer peripheral surface of the second cable body (2). The fastening element (4) is C-shaped and is used to cover the second cable body (2).

10. A split-type traveling cable structure for elevators according to claim 9, characterized in that: The fastener (4) is provided with a limiting protrusion (41), which is used to be accommodated in the groove (24) and is adapted to the opening shape of the groove (24). The groove diameter of the third groove (243) is greater than the groove diameter of the first groove (241) near the end of the third groove (243).

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