Elevator steel wire rope testing device

Abstract

The application provides an elevator steel wire rope testing device, which comprises a device main body, an assembling device, a driving device, a pulling device and a load device. The assembling device is used for assembling the steel wire rope. The driving device is drivingly connected with the pulling device. The pulling device is used for connecting the steel wire rope, so that the steel wire rope is pulled to reciprocate under the driving of the driving device. The load device comprises a load assembly and a first sliding rail. The first sliding rail is arranged on the device main body. The load assembly is used for connecting the steel wire rope and movably arranged on the first sliding rail. The load assembly reciprocates along the length direction of the first sliding rail under the driving of the steel wire rope, so as to simulate the motion state of the steel wire rope in the actual application scene. The load assembly is used for adjusting the contact state with the sliding rail, so as to test the performance of the steel wire rope under different load states. The application has good accuracy, flexibility and convenience, and can accurately reflect the service life of the elevator steel wire rope in the actual application scene.

Description

Technical Field

[0001] This application relates to the field of elevator technology, and in particular to an elevator wire rope testing device. Background Technology

[0002] Elevator wire rope testing equipment refers to a specialized testing device for assessing the safety status or verifying the performance of elevator wire ropes.

[0003] Existing elevator wire rope testing equipment typically employs the constant tension bending fatigue test method, which applies a load by suspending a heavy object on the wire rope to simulate the bending deformation during elevator operation. However, the test accuracy is poor and cannot effectively reflect the actual service life of the elevator wire rope. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the technical solution adopted in this application is to propose an elevator wire rope testing device.

[0005] An elevator wire rope testing device includes: a main body, an assembly device, a drive device, a traction device, and a load device;

[0006] An assembly device is installed on the main body of the equipment for assembling steel wire ropes; A drive unit, mounted on the main body of the equipment, drives and connects to the pulling device; The pulling device is used to connect the steel wire rope and pull the steel wire rope to reciprocate under the drive of the driving device; The load device includes a load component and a first slide rail. The first slide rail is mounted on the main body of the device. The load component is used to connect a wire rope and is movably mounted on the first slide rail. Driven by the wire rope, it reciprocates along the length of the first slide rail to simulate the movement state of the wire rope in a real application scenario. The load component is used to adjust the contact state with the slide rail, thereby changing the load on the wire rope and testing the performance of the wire rope under different load conditions.

[0007] In an optional embodiment, the load assembly includes a load element, a first rolling element, an adjusting element, and a second rolling element; The load member is used to connect the wire rope. The first rolling member is movably disposed on the load member. The second rolling member is movably connected to the load member through the adjusting member. The first rolling member and the second rolling member are disposed opposite to each other to form a receiving space between the first rolling member and the second rolling member, so that the first slide rail is located in the receiving space. The first rolling member is located on one side of the first slide rail, and the second rolling member is located on the other side of the first slide rail. The adjusting member is used to adjust the relative position of the first rolling member and the second rolling member, thereby changing the contact state between the first rolling member and / or the second rolling member and the first slide rail, so as to change the load on the wire rope.

[0008] In an optional embodiment, the adjusting member includes: a connecting arm, a connecting plate, a mounting base, a first adjusting structure, and a second adjusting structure; The connecting plate and the mounting base are fixed on the load member, and the mounting base is equipped with the first adjustment structure and the second adjustment structure; The connecting plate is movably connected to the connecting arm. One end of the connecting arm is connected to the second rolling element, and the other end of the connecting arm is movably mounted on the mounting base via the first adjusting structure. The second adjustment structure is movably connected to the first adjustment structure and can reciprocate along the axial direction of the first adjustment structure, so that the connecting arm is relatively close to or relatively far from the mounting base, causing the first rolling element to abut against or disengage from the first slide rail, changing the degree of contact between the first rolling element and / or the second rolling element and the first slide rail, thereby changing the load on the wire rope.

[0009] In an optional embodiment, the adjustment element further includes a resilient retaining structure; The elastic support structure is sleeved on the first adjustment structure, with one end of the elastic support structure abutting against the first adjustment structure and the other end abutting against the connecting arm.

[0010] In an optional embodiment, the connecting arm is bent in a direction away from the first slide rail to form a connecting portion, and a plurality of connecting holes are provided along the length direction of the connecting portion.

[0011] In an optional embodiment, the connecting plate is rotatably connected to the connecting arm via a rotating shaft, and the second rolling element is rotatably connected to the connecting arm via a first bearing; The distance from the centerline of the rotating shaft to the centerline of the first adjusting structure is defined as the first distance, and the distance from the centerline of the rotating shaft to the centerline of the first bearing is defined as the second distance; the length of the first distance is not less than the length of the second distance.

[0012] In an optional embodiment, the drive device includes a drive element and a motion conversion component; The driving component is used to output power. The motion conversion component connects the driving component and the traction device. The motion conversion component is used to transmit the power of the driving component to the traction device and to change the power form before the power of the driving component is transmitted to the traction device, so that the traction device drives the wire rope to reciprocate in a specific motion mode after receiving the power.

[0013] In an optional embodiment, the motion conversion component includes a turntable, a first link, and a second link; The turntable is disposed at the output end of the drive component, the first connecting rod and the second connecting rod are movably connected, the first connecting rod is movably disposed on the main body of the equipment, and the second connecting rod is movably connected to the pulling device; The turntable has a guide portion on the side facing away from the drive member. The first connecting rod has a stroke groove that matches the shape of the guide portion. The guide portion is placed in the stroke groove and can reciprocate along the length of the stroke groove as the turntable rotates, so as to pull the traction device to reciprocate along a straight line.

[0014] In an optional embodiment, the pulling device includes: a pulling element, a slider, and a second slide rail; The driving device is connected to the pulling member, which is disposed on the slider. The slider is movably disposed on the second slide rail and is used to reciprocate along the length direction of the second slide rail under the drive of the driving device.

[0015] In an optional embodiment, the elevator wire rope testing equipment further includes a main control device and a testing device; The main control device is communicatively connected to the drive device and the detection device. The detection device is installed on the main body of the equipment corresponding to the position of the drive device and / or the pulling device, and is used to detect the operating status of the equipment.

[0016] This application has at least the following beneficial effects: This application provides an elevator wire rope testing device, which has good accuracy, flexibility and convenience, and accurately reflects the service life of elevator wire ropes in actual application scenarios; Specifically, the load device of the elevator wire rope testing equipment includes a load component and a first slide rail. The load component is used to connect the wire rope and is movably mounted on the first slide rail. Driven by the wire rope, it reciprocates along the length of the first slide rail to simulate the actual state of the elevator wire rope pulling the door hanger connected to the elevator door along the upper guide rail in a real-world application scenario. This reflects the specific load composition of the wire rope in actual application, effectively improving the accuracy of the test results. The load component is used to adjust the contact state with the slide rail, changing the load on the wire rope without the need for additional suspended weights, thus improving the convenience of the testing process. Furthermore, by varying the contact state between the load component and the first slide rail, the different contact states between the elevator door and the ground rail and the different loads on the elevator wire rope under different weight elevator doors can be simulated. This allows for testing the performance of the wire rope under different load conditions, improving the flexibility of the testing process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A three-dimensional structure of an elevator wire rope testing device according to one embodiment. Figure 1 ; Figure 2 A three-dimensional structure of an elevator wire rope testing device according to one embodiment. Figure 2 ; Figure 3 for Figure 1 Enlarged detail image of point A in the middle; Figure 4 A schematic diagram of the structure of a load component in one embodiment. Figure 1 ; Figure 5 A schematic diagram of the structure of a load component in one embodiment. Figure 2 ; Figure 6 This is a schematic diagram of the structure of a drive device according to one embodiment; Figure 7 This is a schematic diagram of the connection state between the traction device and the wire rope in one embodiment.

[0019] Figure label: 1-Equipment body; 2-Assembly device; 3-Drive device; 31-Drive component; 32-Motion conversion assembly; 321-First connecting rod; 3211-Stroke groove; 322-Second connecting rod; 323-Turntable; 3231-Guide part; 4-Drawing device; 41-Drawing component; 411-Connecting seat; 412-Screwing assembly; 42-Slider; 43-Second slide rail; 5-Load device; 51-First slide rail; 52-Load assembly ; 521-First rolling element; 522-Second rolling element; 523-Adjusting element; 5231-First adjusting structure; 5232-Second adjusting structure; 5233-Connecting arm; 5234-Connecting plate; 5235-Assembly seat; 5236-Elastic retaining structure; 5237-Connecting part; 5238-Connecting hole; 524-Loading element; 525-First bearing; 526-Rotating shaft; 6-Main control device; 7-Detection device. Detailed Implementation

[0020] Various embodiments of this disclosure will be described more fully below. This disclosure may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of this disclosure to the specific embodiments disclosed herein, but rather this disclosure should be understood to cover all adjustments, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of this disclosure.

[0021] In the following, the terms “comprising” or “may include”, which may be used in various embodiments of this disclosure, indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of this disclosure, the terms “comprising,” “having,” and their cognates are intended only to indicate a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing, or the possibility of adding one or more combinations of the foregoing.

[0022] In various embodiments of this disclosure, the expression "or" or "at least one of A and / or B" includes any combination or all combinations of the words listed simultaneously. For example, the expression "A or B" or "at least one of A and / or B" may include A, may include B, or may include both A and B.

[0023] The terms used in the various embodiments of this disclosure (such as "first," "second," etc.) may modify various components in the various embodiments, but do not limit the corresponding components. For example, the above terms do not limit the order and / or importance of the components. The above terms are only used for the purpose of distinguishing one component from others. For example, a first user device and a second user device refer to different user devices, although both are user devices. For example, a first component may be referred to as a second component without departing from the scope of the various embodiments of this disclosure, and similarly, a second component may also be referred to as a first component.

[0024] It should be noted that if a description is made of "connecting" one component to another, then the first component can be directly connected to the second component, and a third component can be "connected" between the first and second components. Conversely, when a component is "directly connected" to another component, it can be understood that there is no third component between the first and second components.

[0025] The term "user" as used in various embodiments of this disclosure may refer to a person using an electronic device or a device using an electronic device (e.g., an artificial intelligence electronic device).

[0026] The terminology used in the various embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the various embodiments of this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of this disclosure pertain. Terms (such as those defined in a generally used dictionary) are to be interpreted as having the same meaning as in the context of the relevant technical field and are not to be interpreted as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of this disclosure.

[0027] See Figures 1 to 3 As shown in the figure, this application embodiment provides an elevator wire rope testing device, which includes: a main body 1, an assembly device 2, a drive device 3, a traction device 4, and a load device 5; Assembly device 2 is installed on the main body 1 of the equipment and is used to assemble steel wire rope; The assembly device 2 assembles the wire rope and provides initial preload and constraint force to keep the wire rope in a relatively stable state.

[0028] Drive device 3 is installed on the main body 1 of the equipment and drives the pulling device 4. The pulling device 4 is used to connect the steel wire rope so as to pull the steel wire rope to reciprocate under the drive of the driving device 3. Steel wire rope is a flexible component, and its mechanical transmission is characterized by nonlinearity and large deformation. The pulling device 4 realizes the gradual transmission of power to the driving device 3, which reduces the shear force and torque at the connection of the steel wire rope and avoids the local kinking of the steel wire rope to a certain extent. The pulling device 4 can also act as a buffer between the driving device 3 and the steel wire rope, absorbing the instantaneous power of the driving device 3 and ensuring the continuity, stability and controllability of the traction force flow along the rope axis.

[0029] The load device 5 includes a load component 52 and a first slide rail 51. The first slide rail 51 is mounted on the main body 1 of the equipment. The load component 52 is used to connect the wire rope and is movably mounted on the first slide rail 51. Driven by the wire rope, it reciprocates along the length of the first slide rail 51 to simulate the movement state of the wire rope in actual application scenarios. The load component 52 is used to adjust the contact state with the slide rail, so that the load on the wire rope changes, thereby testing the performance of the wire rope under different load conditions.

[0030] Among them, the steel wire rope is a component used in the elevator operating system to connect the left and right doors to realize power transmission, so that the left and right doors open and close synchronously at the same speed. The steel wire rope is usually connected to the rope pulleys at both ends of the door head and the scrapers of the left and right doors.

[0031] Understandably, the load on the wire rope during actual use originates from the sliding friction along the upper sill of the door panel, the inertia of starting and stopping, and the suspended weight of the door panel. The load device 5 includes a load component 52 and a first slide rail 51. The load component 52 is movably placed on the slide rail, simulating the running trajectory of the door leaf. The contact state of the load component 52 can be adjusted, such as pressing, relaxing, contact area, braking, or releasing, to change the frictional normal force or contact form between the load component 52 and the slide rail, causing changes in the tension on the rope. This naturally reproduces the resistance characteristics of the door operator system at the mechanical level, rather than directly hanging a heavy object, thus improving the accuracy and effectiveness of the test results. By adjusting the contact state between the load and the slide rail, the load on the wire rope can be changed, adapting to the testing needs of wire ropes in different elevator systems, covering a variety of test procedures, without needing to add or reduce the weight of the heavy object for different test requirements. This simplifies the accessory setup of the testing equipment and improves the flexibility and convenience of the test.

[0032] Specifically, in some embodiments of this application, the assembly device 2 includes gantry wheels, which are mounted on the assembly body and movably connected to the equipment body 1 via bearings. The wire rope is wound in the rope grooves of the two gantry wheels to realize the assembly of the wire rope.

[0033] Among them, the assembly device 2 uses a gantry crane wheel. On the one hand, it helps to reproduce the real bending conditions and contact mechanical environment. Using a gantry crane wheel also helps to accurately simulate the contact bandwidth and pressure distribution between the wire rope and the wheel flange in actual applications, thus more realistically reflecting the wear, plastic deformation, and fracture mode of the wire rope. Based on the design of the load device 5, this further improves the accuracy and effectiveness of the test results. On the other hand, it can not only complete the test of wire rope wear and service life, but also the test of gantry crane wheel service life, improving the comprehensiveness of the test results. Furthermore, the gantry crane wheel has a fixed diameter and rope groove geometry, which can provide a consistent bending curvature for samples from different batches. This eliminates experimental errors caused by different wheel diameters to a certain extent, helping to ensure the lateral comparability of test data and making laboratory testing closer to a standardized verification process. In addition, the rope groove can effectively constrain the lateral displacement of the wire rope, reducing the occurrence of groove jumping or twisting during reciprocating motion, which helps to ensure the stability of the test process.

[0034] In an optional embodiment, combined with Figure 3 and Figure 4 As shown, the load assembly 52 includes a load member 524, a first rolling member 521, an adjusting member 523, and a second rolling member 522; The load member 524 is used to connect the wire rope. The first rolling member 521 is movably disposed on the load member 524. The second rolling member 522 is movably connected to the load member 524 through the adjusting member 523. The first rolling member 521 and the second rolling member 522 are disposed opposite to each other to form a receiving space between the first rolling member 521 and the second rolling member 522, so that the first slide rail 51 is located in the receiving space. The first rolling member 521 is located on one side of the first slide rail 51, and the second rolling member 522 is located on the other side of the first slide rail 51. The adjusting member 523 is used to adjust the relative position of the first rolling member 521 and the second rolling member 522, thereby changing the contact state between the first rolling member 521 and / or the second rolling member 522 and the first slide rail 51, so that the load of the wire rope changes.

[0035] Specifically, in some embodiments of this application, the first rolling element 521 and the second rolling element 522 include rollers. The first rolling element 521 is rotatably connected to the load element 524 via a bearing, and the second rolling element 522 is rotatably mounted on the adjusting element 523 via a bearing, and is movably connected to the load element 524 via the adjusting element 523. Of course, no specific limitations are made on the specific structure and connection method of the second rolling element 522.

[0036] Understandably, the first rolling element 521 and the second rolling element 522 are arranged opposite to each other, forming an accommodating space between them, so that the first slide rail 51 is located within the accommodating space. The arrangement of the first rolling element 521 and the second rolling element 522 on different sides of the first slide rail 51 transfers the gravity and overturning moment of the load assembly 52 to the first slide rail 51. The wire rope mainly bears the axial resistance converted from the motion resistance of the load assembly 52, which largely avoids the bending stress and shear force caused by the load's own weight, making the test results more accurately reflect the tensile fatigue and wear characteristics of the wire rope. It also more deeply simulates the motion state of the door hanging plate sliding in the upper guide rail through the rollers in the elevator system, making the test environment closer to the actual application environment, and giving the test results good accuracy and effectiveness. The first slide rail 51 is located in the accommodating space between the first rolling element 521 and the second rolling element 522, and the first rolling element 521 and the second rolling element 522 are placed on different sides of the slide rail, which facilitates the application of the clamping force of the second rolling element 522. Through the mutual clamping of the first rolling element 521 and the second rolling element 522, the eccentric load torque generated during the traction of the wire rope is effectively offset, and the stability during operation is enhanced.

[0037] In an optional embodiment, such as Figure 4 As shown, the adjusting component 523 includes: a connecting arm 5233, a connecting plate 5234, a mounting base 5235, a first adjusting structure 5231, and a second adjusting structure 5232; The connecting plate 5234 and the mounting base 5235 are fixed on the load member 524. The mounting base 5235 is equipped with a first adjustment structure 5231 and a second adjustment structure 5232. The connecting plate 5234 and the connecting arm 5233 are movably connected. One end of the connecting arm 5233 is connected to the second rolling element 522, and the other end of the connecting arm 5233 is movably mounted on the mounting base 5235 through the first adjusting structure 5231. The second adjustment structure 5232 is movably connected to the first adjustment structure 5231 and can reciprocate along the axial direction of the first adjustment structure 5231, so that the connecting arm 5233 and the mounting base 5235 are relatively close or relatively far apart, causing the first rolling element 521 to abut or disengage from the first slide rail 51, changing the degree of abutment of the first rolling element 521 and / or the second rolling element 522 against the first slide rail 51, thereby changing the load on the wire rope.

[0038] Specifically, in some embodiments of this application, the first adjusting structure 5231 is a bolt, and the second adjusting structure 5232 is a nut that matches the shape of the bolt. The locking connecting arm 5233 and the mounting base 5235 of the first adjusting structure 5231 and the second adjusting structure 5232 cause the second rolling element 522 to abut against the first slide rail 51, with the abutting force increasing as the degree of locking increases. The releasing connecting arm 5233 and the mounting base 5235 of the first adjusting structure 5231 and the second adjusting structure 5232 cause the second rolling element 522 to disengage from the first slide rail 51. Of course, there are no limitations on the specific implementation of the first adjusting structure 5231 and the second adjusting structure 5232.

[0039] Understandably, the mounting base 5235 is fixed on the load member 524, serving as a reaction base for the adjustment system and providing a stable positioning reference. The first adjustment structure 5231 acts as a hinge fulcrum, enabling the movable connection between the connecting arm 5233 and the mounting base 5235. The second adjustment structure 5232 serves as a power input end, reciprocating along the axial direction of the first adjustment structure 5231, such as with a helical feed. By pushing the connecting arm 5233, the axial displacement is converted into a swing displacement of the connecting arm 5233 around the fulcrum, ultimately achieving the effect of driving the first rolling member 521 to abut or disengage from the first slide rail 51, and changing the degree of abutment of the first rolling member 521 and / or the second rolling member 522 against the first slide rail 51. For the user, the operation is convenient and flexible, allowing for diverse testing conditions by adjusting the first adjustment structure 5231 and the second adjustment structure 5232.

[0040] When in the detached state, the second adjusting structure 5232 retracts, the connecting arm 5233 releases the thrust on the second rolling element 522, the accommodating space between the first rolling element 521 and the second rolling element 522 expands, the clamping of the first slide rail 51 is released, and the load approaches zero. When in the locked state, the second adjusting structure 5232 feeds, pushing the connecting arm 5233 to rotate around the first adjusting structure 5231, forcing the second rolling element 522 to approach the first slide rail 51. The first rolling element 521 cooperates with the second rolling element 522 to clamp the first slide rail 51. The first slide rail 51 is clamped on both sides by the first rolling element 521 and the second rolling element 522. The magnitude of the clamping force is a function of the feed amount of the second adjusting structure 5232, which can be calculated based on Coulomb's law of friction.

[0041] In an optional embodiment, such as Figure 4 As shown, the adjusting member 523 also includes an elastic retaining structure 5236; The elastic retaining structure 5236 is sleeved on the first adjusting structure 5231, with one end of the elastic retaining structure 5236 abutting against the first adjusting structure 5231 and the other end abutting against the connecting arm 5233.

[0042] Optionally, the elastic retaining structure 5236 can be a spring structure, such as a helical compression spring, a disc spring assembly, or a wave spring; it can also be an elastic washer structure. Of course, there are no restrictions on the specific implementation structure of the elastic retaining structure 5236.

[0043] Specifically, in some embodiments of this application, the elastic support structure 5236 is selected as a helical spring.

[0044] Understandably, the elastic retaining structure 5236 continuously applies axial force to the connecting arm 5233 and the first adjusting structure 5231, filling the gap between them. After the first adjusting structure 5231 and the second adjusting structure 5232 have adjusted, it maintains the stability of the relative position between the connecting arm 5233 and the mounting base 5235. When the second adjusting structure 5232 retracts, the elastic potential energy stored in the elastic retaining structure 5236 is released, which helps the connecting arm 5233 to reset, allowing the accommodating space between the first rolling element 521 and the second rolling element 522 to return to its initial state. Furthermore, the elastic retaining structure 5236 can absorb some of the impact energy, protecting the adjusting element 523.

[0045] In an optional embodiment, such as Figure 4 As shown, the connecting arm 5233 is bent in the direction away from the first slide rail 51 to form a connecting part 5237, and a plurality of connecting holes 5238 are provided along the length of the connecting part 5237.

[0046] Specifically, in some embodiments of this application, three connecting holes 5238 are provided along the length of the connecting portion 5237. Of course, there is no limitation on the specific number of connecting holes 5238.

[0047] Understandably, the connecting arm 5233 is bent in the direction away from the first slide rail 51 to form the connecting part 5237, which can avoid the first slide rail 51, reduce the possibility of interference during the swinging process of the connecting arm 5233, and also facilitate user adjustment. After bending to form the connecting part 5237, the connecting arm 5233 has an L-shaped cross-section, which facilitates connection with the mounting base 5235. The connecting hole 5238 is used to connect the first adjustment structure 5231, the second adjustment structure 5232 and the mounting base 5235. The connecting part 5237 can also abut against the elastic support structure 5236, serving as the connection surface of the elastic support structure 5236, thus enhancing the connection stability of the connecting arm 5233.

[0048] A plurality of connecting holes 5238 formed along the length of the connecting portion 5237 provide multiple stations for the first adjusting structure 5231 to be connected. By changing the fixed position of the second adjusting structure 5232 on the connecting holes 5238, the lever arm ratio is substantially changed. The actual load generated by the load adjusting device 5 can be adjusted not only by adjusting the tightness of the first adjusting structure 5231 and the second adjusting structure 5232, but also by changing the position of the connecting holes 5238, providing good adjustment flexibility to adapt to diverse testing needs.

[0049] In an optional embodiment, such as Figure 5 As shown, the connecting plate 5234 is rotatably connected to the connecting arm 5233 via the rotating shaft 526, and the second rolling element 522 is rotatably connected to the connecting arm 5233 via the first bearing 525; The distance from the centerline of the rotating shaft 526 to the centerline of the first adjusting structure 5231 is defined as the first distance L1, and the distance from the centerline of the rotating shaft 526 to the centerline of the first bearing 525 is defined as the second distance L2; the length of the first distance L1 is not less than the length of the second distance L2.

[0050] The distance from the rotating shaft 526 to the first adjusting member 523 is not less than the distance from the rotating shaft 526 to the first bearing 525, forming a force-saving lever system. In actual operation, only the first adjusting structure 5231 and the second adjusting structure 5232 need to be adjusted to generate a small thrust, which can make the second rolling member 522 generate a large clamping force on the first slide rail 51, and further enable the wire rope to obtain a larger load, thus optimizing the user's operating experience.

[0051] In an optional embodiment, such as Figure 6 As shown, the drive device 3 includes a drive component 31 and a motion conversion component 32; The drive component 31 is used to output power. The motion conversion component 32 connects the drive component 31 and the traction device 4. The motion conversion component 32 is used to transmit the power of the drive component 31 to the traction device 4, and to change the power form before the power of the drive component 31 is transmitted to the traction device 4, so that after the traction device 4 receives the power, it drives the wire rope to reciprocate in a specific motion mode.

[0052] Specifically, in some embodiments of this application, the driving element 31 is selected as a motor. Of course, there are no restrictions on the specific implementation structure of the driving element 31.

[0053] Understandably, the drive unit 31 is used to output efficient and stable power, while the motion conversion component 32 is used to convert the power output by the drive unit 31 into the specific form required by the traction device 4, so that the output characteristics of the drive unit 31 match the wire rope test requirements and make the wire rope stress condition closer to the actual situation.

[0054] Furthermore, the motion conversion component 32 ensures that during the wire rope testing process, the drive component 31 is driven in the same direction. The motion conversion component 32 then transmits the same direction of transmission to reciprocating motion. After each test is completed, there is no need to change the current direction to allow the drive component 31 to rotate in the opposite direction, which effectively improves the wire rope testing speed.

[0055] More specifically, in an optional embodiment, the motion conversion assembly 32 includes a turntable 323, a first link 321, and a second link 322; Turntable 323 is located at the output end of drive component 31. First link 321 and second link 322 are movably connected. First link 321 is movably located on the main body 1 of the equipment. Second link 322 is movably connected to traction device 4. The turntable 323 has a guide portion 3231 on the side opposite to the drive member 31. The first connecting rod 321 has a stroke groove 3211 that matches the shape of the guide portion 3231. The guide portion 3231 is placed in the stroke groove 3211 and can reciprocate along the length direction of the stroke groove 3211 as the turntable 323 rotates, so as to pull the traction device 4 to reciprocate along the straight direction.

[0056] Bearings are provided at the connection between the first link 321 and the second link 322, at the connection between the first link 321 and the equipment body 1, at the connection between the second link 322 and the traction device 4, and on the guide part 3231.

[0057] Understandably, the motion conversion assembly 32 includes a turntable 323, a first connecting rod 321, and a second connecting rod 322 that cooperate with each other. The turntable 323 is driven by the drive member 31 to rotate continuously in one direction. The guide part 3231 is installed off-center from the center of the turntable 323 and moves continuously in a circular motion with the turntable 323. The guide part 3231 is embedded in the stroke groove 3211. The stroke groove 3211 restricts the guide part 3231 to slide relative to each other only along the length of the groove. The guide part 3231 converts the circular motion into the continuous oscillation of the first connecting rod 321 around the hinge point through sliding / rolling contact. Then, the oscillation process is converted into the continuous linear reciprocating motion of the pulling device 4 through the second connecting rod 322. This forms a relatively smooth motion conversion process, which to a certain extent avoids rigid impact caused by the start and stop of the drive device 3, so that the wire rope maintains stable dynamic tension during the pulling process.

[0058] Furthermore, the turntable 323, the first connecting rod 321, and the second connecting rod 322 have a flat and compact structure, which can fit the main body 1 of the equipment and adapt to the assembly requirements of the main body 1 of the equipment, reducing the occupation of longitudinal space and helping to achieve a compact layout.

[0059] In an optional embodiment, such as Figure 7 As shown, the pulling device 4 includes: a pulling member 41, a slider 42, and a second slide rail 43; The drive device 3 is connected to the pull member 41, which is mounted on the slider 42. The slider 42 is movably mounted on the second slide rail 43 and is used to reciprocate along the length of the second slide rail 43 under the drive of the drive device 3.

[0060] Understandably, the arrangement of slider 42 and second slide rail 43 can play a linear guiding role, constrain the movement trajectory of traction member 41, and make the force exerted by traction member 41 on wire rope parallel to the preset reciprocating direction. To a certain extent, this eliminates the lateral component force caused by the deviation of the movement trajectory, reduces the unconventional friction generated by the wire rope under the influence of non-axial force, and makes the test data mainly reflect the fatigue characteristics of the rope itself, reducing interference with the test results.

[0061] Specifically, in some embodiments of this application, the pulling member 41 is provided with two connecting seats 411 for connecting the wire rope in its extending direction, and the connecting seats 411 are arranged perpendicular to the axial direction of the wire rope. The wire rope is locked to the connecting seats by a screw-on assembly 412 to enhance the connection stability between the pulling member 41 and the wire rope. The arrangement of the connecting seats 411 perpendicular to the circumferential direction of the wire rope also helps to eliminate lateral force. Of course, there are no restrictions on the connection method between the pulling member 41 and the wire rope.

[0062] In an optional embodiment, combined with Figure 1 and Figure 2 As shown, the elevator wire rope testing equipment also includes a main control device 6 and a testing device 7; The main control device 6 is connected to the drive device 3 and the detection device 7. The detection device 7 is set on the main body 1 of the equipment, corresponding to the position of the drive device 3 and / or the pulling device 4, and is used to detect the operating status of the equipment.

[0063] For example, the detection device 7 can be one or more of a linear displacement sensor, a rotary encoder, a photoelectric switch, and a counter. Of course, there are no restrictions on the specific implementation structure of the detection device 7.

[0064] Specifically, in some embodiments of this application, the detection device 7 may be a photoelectric switch, and the detection device 7 is set to correspond to the driving device 3 to detect whether the driving device 3 is performing driving motion; the detection device 7 may be a counter, and the detection device 7 is set to correspond to the pulling device 4 to detect the number of times the pulling device 6 pulls the wire rope to perform reciprocating motion.

[0065] Understandably, the equipment operating status detected by the detection device 7 can be the movement speed, movement cycle, number of movements, and whether there is movement of the drive device 3. The detection device 7 can sample the actual operating status in real time to verify whether the control command and the actual response status are consistent, thereby improving the controllability of the test variables. It can also record the characteristic parameters and number of cycles for each cycle during the test, which facilitates data traceability and result verification, further improving the reliability of the test results.

[0066] The embodiments of this application have at least the following beneficial effects: This application provides an elevator wire rope testing device, which has good accuracy, flexibility and convenience, and accurately reflects the service life of elevator wire ropes in actual application scenarios; Specifically, the load device 5 of the elevator wire rope testing equipment includes a load component 52 and a first slide rail 51. The load component 52 is used to connect the wire rope and is movably mounted on the first slide rail 51. Driven by the wire rope, it reciprocates along the length of the first slide rail 51 to simulate the actual state of the elevator wire rope pulling the door hanging plate of the elevator door along the upper guide rail in a real application scenario. This reflects the composition of the specific load on the wire rope in the actual application process, effectively improving the accuracy of the test results. The load component 52 is used to adjust the contact state with the slide rail, so that the load on the wire rope changes without the need for additional hanging weights, improving the convenience of the testing process. By different contact states between the load component 52 and the first slide rail 51, the different contact states between the elevator door and the ground rail and the different loads on the elevator wire rope under different weight elevator doors can be simulated. The performance of the wire rope can be tested under different load conditions, improving the flexibility of the testing process.

[0067] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of a preferred embodiment, and the modules or processes shown in the drawings are not necessarily essential for implementing this application.

[0068] Those skilled in the art will understand that the modules in the apparatus of the implementation scenario can be distributed within the apparatus of the implementation scenario as described, or they can be located in one or more apparatuses different from this implementation scenario, with corresponding changes. The modules of the above-described implementation scenario can be combined into one module, or they can be further divided into multiple sub-modules.

[0069] The serial numbers in this application are for descriptive purposes only and do not represent the superiority or inferiority of the implementation scenario.

[0070] The above disclosures are only a few specific implementation scenarios of this application. However, this application is not limited to these. Any variations that can be conceived by those skilled in the art should fall within the protection scope of this application.

Claims

1. An elevator wire rope testing device, characterized in that, include: Equipment body; An assembly device is installed on the main body of the equipment for assembling steel wire ropes; A drive unit, mounted on the main body of the equipment, drives and connects to the pulling device; The pulling device is used to connect the steel wire rope and pull the steel wire rope to reciprocate under the drive of the driving device; The load device includes a load component and a first slide rail. The first slide rail is mounted on the main body of the device. The load component is used to connect a wire rope and is movably mounted on the first slide rail. Driven by the wire rope, it reciprocates along the length of the first slide rail to simulate the movement state of the wire rope in a real application scenario. The load component is used to adjust the contact state with the slide rail, thereby changing the load on the wire rope and testing the performance of the wire rope under different load conditions.

2. The elevator wire rope testing equipment according to claim 1, characterized in that, The load assembly includes a load component, a first rolling component, an adjusting component, and a second rolling component; The load member is used to connect the wire rope. The first rolling member is movably disposed on the load member. The second rolling member is movably connected to the load member through the adjusting member. The first rolling member and the second rolling member are disposed opposite to each other to form a receiving space between the first rolling member and the second rolling member, so that the first slide rail is located in the receiving space. The first rolling member is located on one side of the first slide rail, and the second rolling member is located on the other side of the first slide rail. The adjusting member is used to adjust the relative position of the first rolling member and the second rolling member, thereby changing the contact state between the first rolling member and / or the second rolling member and the first slide rail, so as to change the load on the wire rope.

3. The elevator wire rope testing equipment according to claim 2, characterized in that, The adjusting component includes: a connecting arm, a connecting plate, a mounting base, a first adjusting structure, and a second adjusting structure; The connecting plate and the mounting base are fixed on the load member, and the mounting base is equipped with the first adjustment structure and the second adjustment structure; The connecting plate is movably connected to the connecting arm. One end of the connecting arm is connected to the second rolling element, and the other end of the connecting arm is movably mounted on the mounting base via the first adjusting structure. The second adjustment structure is movably connected to the first adjustment structure and can reciprocate along the axial direction of the first adjustment structure, so that the connecting arm is relatively close to or relatively far from the mounting base, causing the first rolling element to abut against or disengage from the first slide rail, changing the degree of contact between the first rolling element and / or the second rolling element and the first slide rail, thereby changing the load on the wire rope.

4. The elevator wire rope testing equipment according to claim 3, characterized in that, The adjusting element also includes an elastic support structure; The elastic support structure is sleeved on the first adjustment structure, with one end of the elastic support structure abutting against the first adjustment structure and the other end abutting against the connecting arm.

5. The elevator wire rope testing equipment according to claim 3, characterized in that, The connecting arm is bent in a direction away from the first slide rail to form a connecting part, and a plurality of connecting holes are provided along the length of the connecting part.

6. The elevator wire rope testing equipment according to claim 3, characterized in that, The connecting plate is rotatably connected to the connecting arm via a rotating shaft, and the second rolling element is rotatably connected to the connecting arm via a first bearing; The distance from the centerline of the rotating shaft to the centerline of the first adjusting structure is defined as the first distance, and the distance from the centerline of the rotating shaft to the centerline of the first bearing is defined as the second distance; the length of the first distance is not less than the length of the second distance.

7. The elevator wire rope testing equipment according to claim 1, characterized in that, The drive unit includes a drive component and a motion conversion assembly; The driving component is used to output power. The motion conversion component connects the driving component and the traction device. The motion conversion component is used to transmit the power of the driving component to the traction device and to change the power form before the power of the driving component is transmitted to the traction device, so that the traction device drives the wire rope to reciprocate in a specific motion mode after receiving the power.

8. The elevator wire rope testing equipment according to claim 7, characterized in that, The motion conversion component includes a turntable, a first link, and a second link; The turntable is disposed at the output end of the drive component, the first connecting rod and the second connecting rod are movably connected, the first connecting rod is movably disposed on the main body of the equipment, and the second connecting rod is movably connected to the pulling device; The turntable has a guide portion on the side facing away from the drive member. The first connecting rod has a stroke groove that matches the shape of the guide portion. The guide portion is placed in the stroke groove and can reciprocate along the length of the stroke groove as the turntable rotates, so as to pull the traction device to reciprocate along a straight line.

9. The elevator wire rope testing equipment according to claim 1, characterized in that, The pulling device includes: a pulling component, a slider, and a second slide rail; The driving device is connected to the pulling member, which is disposed on the slider. The slider is movably disposed on the second slide rail and is used to reciprocate along the length direction of the second slide rail under the drive of the driving device.

10. The elevator wire rope testing equipment according to claim 1, characterized in that, Elevator wire rope testing equipment also includes a main control device and a testing device; The main control device is communicatively connected to the drive device and the detection device. The detection device is installed on the main body of the equipment corresponding to the position of the drive device and / or the pulling device, and is used to detect the operating status of the equipment.

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