A traction rope torque measurement device, system and its adjustment method

Abstract

The present invention belongs to the technical field of elevator equipment, and provides a traction rope torque measurement device, a system and an adjustment method thereof. In the present invention, torque sensors are respectively installed at both ends of each traction rope of the elevator to measure the torque value. The torque sensors at the same end are connected to the same data acquisition controller. There are two data acquisition controllers at both ends of the traction rope. Each data acquisition controller transmits signals to the central processing controller in an electrically connected manner; after receiving the signals, the central processing controller displays the torque values at both ends of each traction rope. When the elevator is running, the central processing controller records the changes in the torque at both ends of each traction rope during the operation of the elevator. By analyzing the changes in the torque at both ends of each traction rope during the operation of the elevator, it is possible to accurately judge whether it is necessary to adjust the traction rope torque and the adjustment strategy, so as to avoid mis-adjustment or over-adjustment of the traction rope torque.

Description

Technical Field

[0001] The present invention belongs to the technical field of elevator equipment, and particularly relates to a traction rope torque measuring device, a system and an adjustment method thereof. Background Art

[0002] During the manufacturing, packaging and installation of elevator traction ropes, the traction ropes may be twisted, resulting in torque generation in the traction ropes. During the operation of the elevator, due to the relative rolling between the rope pulley and the traction rope, the traction rope with torque will continuously tighten and loosen. When the tightening reaches the limit, the traction rope slips in the rope groove of the rope pulley, thereby releasing and transferring this tightening. The tightening, loosening and slipping of different positions of the traction rope not only affect the running stability and riding comfort of the elevator, but also exacerbate the wear of the traction rope and the rope pulley, and reduce the service life of the traction rope and the rope pulley.

[0003] In the existing technologies, the rope end of the traction rope can be conveniently rotated through a mechanical structure to release the torque of the traction rope. However, this release is carried out based on experience and feeling and by visual observation. Without accurately grasping the torque and its changes of the traction rope at different positions of the elevator, there is a possibility of incorrect adjustment or over-adjustment in this release, which instead exacerbates the damage of parts. Summary of the Invention

[0004] In order to overcome the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide a traction rope torque measuring device, a system and an adjustment method thereof, so as to achieve targeted torque adjustment of the traction rope and avoid incorrect adjustment or over-adjustment of the traction rope torque.

[0005] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0006] A traction rope torque measuring device includes a first support sleeve, a second support sleeve and a fastening component for contacting the torque source;

[0007] The first support sleeve is hollowly arranged to form a first accommodation space, and at least one side surface of the first support sleeve is provided with a first through hole;

[0008] The second support sleeve includes a first flat plate and a second flat plate arranged oppositely, a second accommodation space is formed between the first flat plate and the second flat plate, and a torque sensor is installed in the second accommodation space; corresponding second through holes are provided on the first flat plate and the second flat plate;

[0009] The fastening component includes a bolt member and a nut member, and the bolt member sequentially passes through the first support sleeve and the second support sleeve and then is connected to the nut member.

[0010] Preferably, the torsion sensor is arranged in series on the bolt member.

[0011] Preferably, an installation hole is transversely arranged at one end of the bolt member for screwing in the nut member, and an opening pin is inserted in the installation hole.

[0012] A traction rope torsion measurement system includes a rope end fixing assembly and also includes a traction rope torsion measurement device as described above.

[0013] The rope end fixing assembly includes a mounting plate, the bolt member passing through the mounting plate, and a spring member arranged in series on the bolt member. The first support sleeve abuts against the spring member and is located at one end of the spring member away from the mounting plate.

[0014] The torsion sensor is electrically connected to a data acquisition controller, and the data acquisition controller is electrically connected to a central processing controller.

[0015] Preferably, the mounting plate is arranged horizontally, and the bottom end of the bolt member arranged on the mounting plate is connected to the rope end of the traction rope.

[0016] The spring member is arranged above the mounting plate. A third flat plate is arranged at the top end of the spring member. After the bolt member passes through the third flat plate, a plurality of fixing nuts are arranged, and the height of the first accommodation space is greater than the height of the plurality of fixing nuts.

[0017] Preferably, an observation hole is arranged on the side surface of the first accommodation space.

[0018] A method for adjusting the torsion of a traction rope includes the following steps:

[0019] S10. Construct a traction rope torsion measurement system as described above.

[0020] S20. Adjust the relative positions of the first support sleeve and the second support sleeve on the bolt member so that the first support sleeve tightly presses the spring member to fully bear the torsion from the traction rope, and the second support sleeve presses the first support sleeve to measure the induction of the torsion.

[0021] S30. Operate the elevator to obtain the torsion measurement value of the traction rope through the data acquisition controller, and record and display the torsion value and the torsion change condition of the traction rope through the central processing controller.

[0022] S40. The staff performs the torsion adjustment operation on the corresponding traction rope according to the display information of the central processing controller.

[0023] Furthermore, the traction rope torsion measurement systems are correspondingly arranged for the traction ropes on the car side and the counterweight side one by one.

[0024] Further, the display information of the central processing controller includes the instantaneous torque value, the direction of the torque, and the torque change relationship diagram.

[0025] Further, the setting directions of several of the torque sensors are all the same.

[0026] Compared with the prior art, the beneficial effects of the present invention include:

[0027] A traction rope torque measuring device, system and its adjustment method provided in this solution can measure the torque at the end of each traction rope during the whole process of elevator operation. By analyzing the torque parameters and changes at the end of each traction rope during the whole process of elevator operation, it is possible to accurately judge whether the corresponding traction rope needs torque adjustment and the adjustment strategy, so that the torque adjustment of the traction rope can be more timely and effective. At the same time, it can effectively avoid the situation of mis-adjustment or over-adjustment of the traction rope torque, ensuring the stable operation of the elevator and the service life of related components. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for description in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a schematic structural diagram of the traction rope torque measuring device in the present invention.

[0030] Figure 2 It is a schematic structural diagram of the traction rope torque measuring system in the present invention.

[0031] Figure 3 It is a record table of instantaneous torque data during the torque measurement process of the present invention.

[0032] Figure 4 It is a relationship diagram of lift height H - torque F when there is no torque or very little torque at the car side rope head in the present invention.

[0033] Figure 5 It is a relationship diagram of lift height H - torque F when there is no torque or very little torque at the counterweight side rope head in the present invention.

[0034] Figure 6 It is a relationship diagram of lift height H - torque F when there is torque but no slip at the car side rope head in the present invention.

[0035] Figure 7 It is a relationship diagram of lift height H - torque F when there is torque but no slip at the counterweight side rope head in the present invention.

[0036] Figure 8 This is a graph showing the relationship between the lifting height H and the torque F when the rope socket on the car side of the present invention slips.

[0037] Figure 9 This is a graph showing the relationship between the lifting height H and the torque F when the rope socket on the counterweight side of the present invention slips.

[0038] Where:

[0039] 1 - First support sleeve, 11 - Observation hole;

[0040] 2 - Second support sleeve, 21 - First flat plate, 22 - Second flat plate;

[0041] 3 - Fastening assembly, 31 - Bolt member, 311 - Split pin, 32 - Nut member;

[0042] 4 - Torque sensor, 41 - Data acquisition controller, 42 - Central processing controller;

[0043] 5 - Traction rope, 51 - Rope socket fixing assembly, 511 - Mounting plate, 512 - Spring member, 513 - Third flat plate, 514 - Fixing nut. Detailed implementation manners

[0044] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific implementation manners. It should be noted that, without conflict, the implementation manners and features in the embodiments of the present application can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention. The described implementation manners are only a part of the implementation manners of the present invention, rather than all of the implementation manners. All other implementation manners obtained by those of ordinary skill in the art based on the implementation manners in the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific implementation manners, and are not intended to limit the present invention.

[0046] Embodiment 1

[0047] As Figures 1-9As shown in the figure, in this embodiment, a traction rope torsion measurement device is provided, which mainly includes a first support sleeve 1, a second support sleeve 2 and a fastening component 3. In the use state, the bottom end of the first support sleeve 1 is used to contact the torsion source to transmit the torsion occurrence state; the bottom end of the second support sleeve 2 contacts the top end of the first support sleeve 1. Among them, a torsion sensor 4 is arranged on the second support sleeve 2 to detect torsion data; the first support sleeve 1 and the second support sleeve 2 are installed and fixed through the fastening component 3.

[0048] Specifically, in this embodiment, the first support sleeve 1 is hollowly arranged to form a first accommodation space, and at least one side surface of the first support sleeve 1 is provided with a first through hole.

[0049] As a preferred solution, in this embodiment, the cross-section of the first support sleeve 1 is arranged in a U shape, such as being made of U-shaped channel steel. And in the use state, its U-shaped opening is arranged downward, and at this time the first through hole is arranged on the U-shaped bottom wall, so as to facilitate the cooperative installation and use with the rope head fixing component 51 of the traction rope 5. The specific structural form of the rope head fixing component 51 can refer to the prior art and will not be elaborated here. In this embodiment, it is preferably set that the shape of the first support sleeve 1 is adapted to the shape of the torsion sensor 4.

[0050] In addition, the second support sleeve 2 includes a first flat plate 21 and a second flat plate 22 which are oppositely arranged. A second accommodation space is formed between the first flat plate 21 and the second flat plate 22, and the torsion sensor 4 is arranged in the second accommodation space.

[0051] The fastening component 3 includes a bolt member 31 and a nut member 32. The bolt member 31 sequentially passes through the first support sleeve 1 and the second support sleeve 2 and then is connected to the nut member 32.

[0052] Furthermore, in this embodiment, corresponding second through holes are arranged on the first flat plate 21 and the second flat plate 22. The corresponding second through holes and the first through holes are coaxially arranged to facilitate the passing of the bolt member 31. As a preferred solution, in this embodiment, the torsion sensor 4 is strung on the bolt member 31 and is coaxially arranged with the axis of the bolt member 31 to improve the detection accuracy of the torsion data.

[0053] Furthermore, an installation hole is transversely provided at one end of the bolt member 31 for the nut member 32 to be screwed into, and a split pin 311 is inserted into the installation hole. The provided split pin 311 can effectively prevent the first support sleeve 1, the second support sleeve 2 and the nut member 32 from accidentally disengaging from the bolt member 31 under the action of torsion, making the entire traction rope torsion measuring device safer and more reliable.

[0054] For the convenience of understanding this solution, as Figure 2 shown, in this embodiment, a traction rope torsion measuring system is provided, which includes the rope head fixing assembly 51 and also includes a traction rope torsion measuring device as described above.

[0055] Specifically, the rope head fixing assembly 51 mainly includes a mounting plate 511, the bolt member 31 passing through the mounting plate 511, and a spring member 512 strung on the bolt member 31. Here, the specific installation and connection methods of the mounting plate 511, the bolt member 31 and the spring member 512 can refer to the prior art and will not be elaborated here. The bottom end of the first support sleeve 1 abuts against the top end of the spring member 512 and is located at one end of the spring member 512 away from the mounting plate 511, so as to effectively bear the torsion from the end of the traction rope 5 and transmit it to the second support sleeve 2.

[0056] The torsion sensor 4 is electrically connected to a data acquisition controller 41, and the data acquisition controller 41 is electrically connected to a central processing controller 42. In this embodiment, as a preferred solution, the electrical connection can be either a wired signal connection using wires or the like, or a wireless signal connection in forms such as WIFI and Bluetooth. The specific implementation method can refer to the prior art and will not be elaborated here.

[0057] As a preferred solution, the mounting plate 511 is horizontally arranged, and the bottom end of the bolt member 31 arranged on the mounting plate 511 is connected to the rope head of the traction rope 5. In this embodiment, the mounting plate 511 is provided at both the car side rope head and the counterweight side rope head. On the mounting plate 511, there are several through holes for the bolt member 31 to pass through, and a corresponding bolt member 31 is provided for each traction rope 5, so as to facilitate the control and adjustment of a single traction rope 5.

[0058] The spring member 512 is disposed above the mounting plate 511. As a preferred solution, a third flat plate 513 is provided at the top end of the spring member 512, and a plurality of fixing nuts 514 are provided after the bolt member 31 passes through the third flat plate 513. The provided third flat plate 513 can, on the one hand, facilitate the pressing and installation of the spring member 512 by means of the plurality of fixing nuts 514 during normal use; on the other hand, it can effectively increase the contact area between the bottom end of the first support sleeve 1 and the spring member 512, thereby effectively improving the accuracy of torque transmission.

[0059] In addition, in this embodiment, the height of the first accommodation space is set to be greater than the stacked height of the plurality of fixing nuts 514, and an observation hole 11 is provided on the side surface of the first accommodation space. So that during use, the traction rope torque measuring device proposed in this solution can be directly installed on the rope end fixing assembly 51, and at this time the bolt member 31 can be used concurrently without too much disassembly and assembly operations. By adjusting the nut member 32, the second support sleeve 2, the first support sleeve 1 and the spring member 512 are continuously pressed down, so that the contact between the fixing nut 514 and the third flat plate 513 is separated, and only the first support sleeve 1 contacts the third flat plate 513, so that the traction rope 5 can fully bear the torque, and a more accurate data measurement operation can be performed. At this time, the confirmation of the contact separation between the fixing nut 514 and the third flat plate 513 can be carried out through the provided observation hole 11.

[0060] To facilitate the further understanding of this solution, this embodiment also provides a method for adjusting the torque of the traction rope, which mainly includes the following steps:

[0061] S10. Construct a traction rope torque measuring system as described above; wherein, the traction rope torque measuring system is provided for each of the traction ropes 5 on the car side and the counterweight side in a one-to-one correspondence. So that on the rope end fixing assemblies 51 at the car side rope end and the counterweight side rope end, the above-mentioned traction rope torque measuring device is provided for each traction rope 5, so as to facilitate the measurement of the torque of each traction rope 5. In this embodiment, it is preferably set that the installation directions of the plurality of torque sensors 4 are all the same, so as to facilitate the definition of the direction of torque generation.

[0062] S20. Adjust the relative positions of the first support sleeve 1 and the second support sleeve 2 on the bolt member 31 such that the first support sleeve 1 tightly presses the spring member 512 to fully bear the torque from the hoisting rope 5, and the second support sleeve 2 presses the first support sleeve 1 to sense and measure the torque; at this time, the data acquisition controller 41 is respectively arranged at the car-side rope end and the counterweight-side rope end to separately measure the torques of the two ends of the hoisting rope 5.

[0063] S30. Run the elevator to obtain the torque measurement value of the hoisting rope 5 through the data acquisition controller 41, and record and display the torque value and the torque change condition of the hoisting rope 5 through the central processing controller 42; further, the display information of the central processing controller 42 includes the instantaneous torque value, the direction of the torque, and the torque change relationship diagram.

[0064] S40. The staff performs the torque adjustment operation on the corresponding hoisting rope 5 according to the display information of the central processing controller 42.

[0065] When the central processing controller 42 receives the signals transmitted from the data acquisition controller 41 at the car-side rope end and the counterweight-side rope end, it displays the torque values at both ends of each hoisting rope 5 on the screen. At this time, the positive or negative of the torque value reflects the different directions of the torque of the hoisting rope 5.

[0066] As one example of measurement and adjustment, run the elevator throughout the process in the order of bottom floor → top floor → bottom floor. The central processing controller 42 simultaneously records the torque and the change condition of each / group of the torque sensors 4 at both ends of the elevator hoisting rope 5, and records the corresponding instantaneous torque data, as Figure 3 shown.

[0067] At this time, the relationship diagrams of the lifting height H - torque F corresponding to each torque sensor 4 are respectively displayed.

[0068] Figure 4 、 Figure 5 The relationship diagrams of the lifting height H - torque F of the car-side rope end and the counterweight-side rope end respectively indicate that the corresponding hoisting rope 5 has no torque or very little torque. In this case, there is no need to adjust the torque.

[0069] Figure 6 、 Figure 7 The relationship diagrams of the lifting height H - torque F of the car-side rope end and the counterweight-side rope end respectively indicate that as the elevator runs, the torque of the corresponding hoisting rope 5 changes periodically between tightening and loosening, but there is no slippage between the rope sheave and the hoisting rope 5. In this case, it is necessary to consider adjusting the torque.

[0070] Figure 8 、 Figure 9The relationship diagram of the lift height H - torque F for the car - side rope socket and the counterweight - side rope socket respectively shows that as the elevator operates, the torque of the corresponding hoisting rope 5 changes periodically between tightening and loosening, but there is slippage between the rope sheave and the hoisting rope 5. This situation requires prompt adjustment of the torque.

[0071] By adopting the above - mentioned method, the measurement of the torque at both ends of each hoisting rope 5 during the whole - process operation of the elevator is achieved. By analyzing the torque and its variation at both ends of each hoisting rope 5 during the whole - process operation of the elevator, it is possible to accurately judge whether each hoisting rope 5 needs to adjust the hoisting - rope torque and formulate an adjustment strategy, effectively avoiding incorrect adjustment or over - adjustment of the hoisting - rope torque, and ensuring the stable operation of the elevator and the service life of related components.

[0072] The above - mentioned are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Therefore, any modification, equivalent change, and modification made to the above - mentioned embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A method for adjusting the torsion of a traction rope, characterized in that, it includes a traction rope torsion measuring device and a traction rope torsion measuring system; The traction rope torsion measuring device includes a first support sleeve, a second support sleeve and a fastening component for contacting the torsion source; The first support sleeve is hollowly arranged to form a first accommodation space, and at least one side surface of the first support sleeve is provided with a first through hole; The second support sleeve includes a first flat plate and a second flat plate arranged oppositely, a second accommodation space is formed between the first flat plate and the second flat plate, and a torsion sensor is installed in the second accommodation space; corresponding second through holes are provided on the first flat plate and the second flat plate; The fastening component includes a bolt and a nut, and the bolt sequentially passes through the first support sleeve and the second support sleeve and then is connected to the nut; The torsion sensor is strung on the bolt, and the torsion sensor is coaxially arranged with the axis of the bolt; One end of the bolt for the nut to be screwed into is transversely provided with a mounting hole, and a split pin is inserted into the mounting hole; The traction rope torsion measuring system includes a rope head fixing component and the above-mentioned traction rope torsion measuring device; The rope head fixing component includes a mounting plate, the bolt passing through the mounting plate, and a spring member strung on the bolt, and the first support sleeve abuts against the spring member and is located at one end of the spring member away from the mounting plate; The torsion sensor is electrically connected to a data acquisition controller, and the data acquisition controller is electrically connected to a central processing controller; The method for adjusting the torsion of the traction rope includes the following steps: S10. Construct a traction rope torsion measuring system as described above; S20. Adjust the relative positions of the first support sleeve and the second support sleeve on the bolt so that the first support sleeve tightly presses the spring member to completely bear the torsion from the traction rope, and the second support sleeve tightly presses the first support sleeve to perform induction measurement of the torsion; S30. Run the elevator to obtain the torsion measurement value of the traction rope through the data acquisition controller, and record and display the torsion value and the torsion change condition of the traction rope through the central processing controller; S40. The staff performs the torsion adjustment operation of the corresponding traction rope according to the display information of the central processing controller; For the corresponding traction rope, there is no torsion or very little torsion, and there is no need to adjust the torsion; for the corresponding traction rope, as the elevator runs, its torsion changes periodically between tightening and loosening, but the rope pulley and the traction rope do not slip, and it is necessary to consider adjusting the torsion; for the corresponding traction rope, as the elevator runs, its torsion changes periodically between tightening and loosening, but the rope pulley and the traction rope slip, and it is necessary to adjust the torsion as soon as possible.

2. A method for adjusting the torsion of a traction rope according to claim 1, characterized in that, the mounting plate is horizontally arranged, and the bottom end of the bolt arranged on the mounting plate is connected to the rope head of the traction rope; The spring member is arranged above the mounting plate. A third flat plate is arranged at the top end of the spring member. After the bolt member passes through the third flat plate, a plurality of fixing nuts are arranged, and the height of the first accommodation space is greater than the height of the plurality of fixing nuts.

3. A method for adjusting the torsion of a traction rope according to claim 2, characterized in that an observation hole is arranged on the side surface of the first accommodation space.

4. A method for adjusting the torsion of a traction rope according to claim 1, characterized in that the traction rope torsion measurement systems are correspondingly arranged for the traction ropes on the car side and the counterweight side one by one.

5. A method for adjusting the torsion of a traction rope according to claim 4, characterized in that the display information of the central processing controller includes the instantaneous torsion value, the direction of the torsion and the torsion change relationship diagram.

6. A method for adjusting the torsion of a traction rope according to claim 5, characterized in that the setting directions of the plurality of torsion sensors are all the same.

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