Traction elevator steel wire rope slippage measuring device
By designing a sliding elevator wire rope sliding measurement device, the problem that traditional detection devices cannot accurately measure the slip amount is solved, and safety monitoring of the performance of the elevator traction machine is achieved, avoiding safety hazards.
Patent Information
- Application Number
- CN202421796718.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The traditional traction elevator detection device lacks the function of detecting the slip volume of the elevator traction wheel wire rope. The detection method is rough and it is impossible to detect the safety hazards of the elevator traction machine in time, resulting in the occurrence of safety accidents.
A traction elevator wire rope slip measurement device is designed, including a computing terminal, a wire rope measurement component, a traction wheel measurement component, a safety circuit measurement component and a data acquisition component. Through these components, the running data of the wire rope and the traction wheel are detected and the accurate slip quantity is calculated.
The precise measurement of the slippage of the wire rope of the elevator traction wheel is achieved, and potential safety hazards are discovered in a timely manner, avoiding the occurrence of elevator safety accidents.
Smart Images
Figure CN223047026U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator detection, in particular to a measuring device for slippage of a traction elevator steel wire rope. Background Technique
[0002] A traction elevator is a device that realizes the lifting and lowering of a car by driving a steel wire rope through a traction machine. Its operating principle is that the traction machine installed in the machine room is used as the driving mechanism. One end of the steel wire rope is fixedly connected to the car, and the other end successively bypasses the traction wheel and the guiding pulley of the traction machine and then is fixedly connected to the counterweight device. Thus, when the traction machine rotates, the friction between the traction wheel and the steel wire rope drives the steel wire rope to rotate, causing the car to rise or fall; during the operation of the elevator, two types of slippage will inevitably occur between the steel wire rope and the traction wheel. One is normal slippage, which is usually caused by the following reasons: 1. During the process of the car rising or falling, due to the unbalanced forces at both ends of the steel wire rope, the steel wire rope undergoes a certain amount of elastic expansion and contraction, resulting in a small slippage of the steel wire rope on the traction wheel; 2. During the manufacturing and installation process of the traction elevator, inevitable errors and external factors such as the oil content of the steel wire rope cause slippage between the steel wire rope and the traction wheel. The other is abnormal slippage, which is usually caused by a certain amount of wear on the traction wheel or the steel wire rope during the long-term use of the elevator, resulting in slippage between the traction wheel and the steel wire rope. And if the slippage amount of the traction elevator steel wire rope is too large, it will cause serious safety hazards to the elevator, and it is necessary to deal with it in time to ensure the safe and reliable operation of the elevator.
[0003] Traditional traction elevator detection devices rarely have the function of detecting the slippage amount of the traction elevator steel wire rope, and the detection method of the slippage amount of the traction elevator steel wire rope is relatively rough, and the accurate slippage amount of the traction elevator steel wire rope cannot be obtained, resulting in the inability to timely discover the safety hazards of the performance of the elevator traction machine and making it difficult to avoid the occurrence of related elevator safety accidents. Content of the Utility Model
[0004] In view of this, it is necessary to provide a measuring device for slippage of a traction elevator steel wire rope, which can obtain the accurate slippage amount of the traction elevator steel wire rope, thereby timely discovering the safety hazards of the performance of the elevator traction machine and avoiding the occurrence of related elevator safety accidents.
[0005] The utility model provides a slip measurement device for the steel wire rope of a traction elevator, which comprises an operation terminal, a steel wire rope measurement component, a traction wheel measurement component, a safety circuit measurement component and a data acquisition component. The operation terminal is wirelessly connected to the data acquisition component, and the data acquisition component is electrically connected to the steel wire rope measurement component, the traction wheel measurement component and the safety circuit measurement component respectively. The acquisition end of the steel wire rope measurement component contacts the steel wire rope to detect the running speed data and running distance data of the steel wire rope. The acquisition end of the traction wheel measurement component contacts the traction wheel to detect the running speed data and running distance data of the traction wheel. The safety circuit measurement component is located in the traction machine and is electrically connected to the safety circuit of the traction machine to detect the time data when the traction wheel starts to decelerate. The data acquisition component is used to acquire the data detected by the steel wire rope measurement component, the traction wheel measurement component and the safety circuit measurement component, and upload these data to the operation terminal. The operation terminal is used to calculate the slip amount of the steel wire rope of the traction elevator according to the data uploaded from the data acquisition component.
[0006] Preferably, the steel wire rope measurement component includes a first magnetic adsorption base, a first fixed connecting rod and a first detection piece. The first magnetic adsorption base is fixedly installed on the base of the guide pulley. One end of the first fixed connecting rod is fixed on the first magnetic adsorption base, and the other end is fixedly connected to the first detection piece. The first detection piece is electrically connected to the data acquisition component. The acquisition end of the first detection piece contacts the steel wire rope bypassing the guide pulley to detect the running speed data and running distance data of the steel wire rope, and transmits these data to the data acquisition component.
[0007] Preferably, the traction wheel measurement component includes a second magnetic adsorption base, a second fixed connecting rod and a second detection piece. The second magnetic adsorption base is fixedly installed on the base of the traction machine. One end of the second fixed connecting rod is fixed on the second magnetic adsorption base, and the other end is fixedly connected to the second detection piece. The second detection piece is electrically connected to the data acquisition component. The acquisition end of the second detection piece contacts the traction wheel to detect the running speed data and running distance data of the traction wheel, and transmits these data to the data acquisition component.
[0008] Preferably, the safety circuit measurement component includes two acquisition pieces with the same structure. One ends of the two acquisition pieces are respectively electrically connected to both ends of a terminal in the safety circuit of the elevator main machine, and the other ends are both electrically connected to the data acquisition component to detect the current change in the safety circuit, so as to obtain the time data when the current in the safety circuit returns to zero.
[0009] Preferably, the data acquisition component includes a fixed housing, a data processing module, a battery module, a wireless transmission module, and a third magnetic base. The third magnetic base is fixedly installed on the base of the traction machine, the fixed housing is fixedly installed on the third magnetic base, and the data processing module, the battery module, and the wireless transmission module are all fixedly installed in the fixed housing. The data processing module is wirelessly connected to the computing terminal and is electrically connected to the first detection component, the second detection component, the two acquisition components, and the wireless transmission component respectively, so as to receive the data measured by the first detection component, the second detection component, and the two acquisition components, and send these data to the computing terminal through the wireless transmission module. The battery module is electrically connected to the data processing module and the wireless transmission module and is used to supply power to the data processing module and the wireless transmission module.
[0010] Preferably, the computing terminal is an electronic device with computing power, storage function, and display function.
[0011] The above-mentioned traction elevator steel wire rope slip measurement device is provided with a computing terminal, a steel wire rope measurement component, a traction wheel measurement component, a safety circuit measurement component, and a data acquisition component. The computing terminal and the data acquisition component are wirelessly connected, and the data acquisition component is electrically connected to the steel wire rope measurement component, the traction wheel measurement component, and the safety circuit measurement component respectively. In this way, the operating speed data and operating distance data of the steel wire rope are detected by the steel wire rope measurement component; the operating speed data and operating distance data of the traction wheel are detected by the traction wheel measurement component; the moment data when the traction wheel starts to decelerate is detected by the safety circuit measurement component; the above data are collected and sorted by the data acquisition component and sent to the computing terminal. The computing terminal obtains the moment when the traction wheel speed returns to zero according to the operating speed data of the traction wheel, and this moment is the moment when the traction wheel stops rotating. Subtracting the moment when the traction wheel starts to decelerate from this moment can obtain the time period from when the traction wheel starts to decelerate to when it stops, so as to obtain the operating distance of the traction wheel from when it starts to decelerate to when it stops rotating from the operating distance data of the traction wheel; the computing terminal obtains the moment when the steel wire rope speed returns to zero according to the operating speed data of the steel wire rope, and this moment is the moment when the steel wire rope stops rotating. Subtracting the moment when the traction wheel starts to decelerate from this moment can obtain the time period from when the steel wire rope starts to decelerate to when it stops, so as to obtain the operating distance of the steel wire rope from when it starts to decelerate to when it stops rotating from the operating distance data of the steel wire rope; subtracting the operating distance of the traction wheel from when it starts to decelerate to when it stops rotating from the operating distance of the steel wire rope from when it starts to decelerate to when it stops rotating can obtain the accurate slip amount of the elevator traction wheel steel wire rope, so as to timely discover the safety hazards of the elevator traction machine performance and avoid the occurrence of related elevator safety accidents. Description of the Drawings
[0012] Figure 1 is an oblique overhead view of the traction elevator steel wire rope slip measurement device of the present application.
[0013] Figure 2 It is a side view of the traction elevator wire rope slip measurement device of the present application.
[0014] Figure 3 It is an oblique overhead view of another perspective of the traction elevator wire rope slip measurement device of the present application.
[0015] Figure 4 is of the present application Figure 3 Partial enlarged view of area A in
[0016] Figure 5 is of the present application Figure 3 Partial enlarged view of area B in
[0017] Figure 6 It is an oblique overhead view of the wire rope measurement component of the present application.
[0018] Figure 7 It is an oblique overhead view of the safety circuit measurement component of the present application.
[0019] In the figure: Traction elevator wire rope slip measurement device 10, wire rope measurement component 20, first magnetic attraction base 21, first fixed connecting rod 22, first connecting rod 221, second connecting rod 222, first detection piece 23, traction wheel measurement component 30, second magnetic attraction base 31, second fixed connecting rod 32, second detection piece 33, safety circuit measurement component 40, acquisition piece 41, data acquisition component 50. Specific embodiments
[0020] The following further elaborates in detail on the technical solutions and technical effects of the embodiments of the present utility model in conjunction with the drawings of the present utility model.
[0021] Please refer to Figures 1 to 3, the present utility model provides a slip measurement device 10 for the steel wire rope of a traction elevator, which includes an operation terminal, a steel wire rope measurement component 20, a traction wheel measurement component 30, a safety circuit measurement component 40 and a data acquisition component 50. The operation terminal is wirelessly connected to the data acquisition component 50, and the data acquisition component 50 is electrically connected to the steel wire rope measurement component 20, the traction wheel measurement component 30 and the safety circuit measurement component 40 respectively; the acquisition end of the steel wire rope measurement component 20 contacts the steel wire rope to acquire the running speed data and running distance data of the steel wire rope; the traction wheel measurement component 30 is used to detect the running speed data and running distance data of the traction wheel; the safety circuit measurement component 40 is used to detect the time data when the traction wheel starts to decelerate; the data acquisition component 50 is used to obtain the data detected by the steel wire rope measurement component 20, the traction wheel measurement component 30 and the safety circuit measurement component 40, and upload these data to the operation terminal; the operation terminal is used to calculate the slip amount of the steel wire rope of the traction elevator according to the data uploaded by the data acquisition component 50; thus, the running speed data and running distance data of the steel wire rope are detected by the steel wire rope measurement component 20; the running speed data and running distance data of the traction wheel are detected by the traction wheel measurement component 30; the time data when the traction wheel starts to decelerate is detected by the safety circuit measurement component 40; the above data are collected and sorted by the data acquisition component 50 and sent to the operation terminal. The operation terminal obtains the moment when the speed of the traction wheel returns to zero according to the running speed data of the traction wheel, and this moment is the moment when the traction wheel stops rotating. Subtracting the moment when the traction wheel starts to decelerate from this moment can obtain the time period from when the traction wheel starts to decelerate to when it stops, so as to obtain the running distance of the traction wheel from when it starts to decelerate to when it stops rotating from the running distance data of the traction wheel; the operation terminal obtains the moment when the speed of the steel wire rope returns to zero according to the running speed data of the steel wire rope, and this moment is the moment when the steel wire rope stops rotating. Subtracting the moment when the traction wheel starts to decelerate from this moment can obtain the time period from when the steel wire rope starts to decelerate to when it stops, so as to obtain the running distance of the steel wire rope from when it starts to decelerate to when it stops rotating from the running distance data of the steel wire rope; subtracting the running distance of the traction wheel from when it starts to decelerate to when it stops rotating from the running distance of the steel wire rope from when it starts to decelerate to when it stops rotating can obtain the accurate slip amount of the steel wire rope of the elevator traction wheel.
[0022] Please refer to Figure 4 , Figure 6 , further, the steel wire rope measurement component 20 includes a first magnetic suction base 21, a first fixed connecting rod 22 and a first detection piece 23. The first magnetic suction base 21 is fixedly installed on the base of the guiding pulley. One end of the first fixed connecting rod 22 is fixed on the first magnetic suction base 21, and the other end is fixedly connected to the first detection piece 23. The first detection piece 23 is electrically connected to the data acquisition component 50. The acquisition end of the first detection piece 23 contacts the steel wire rope bypassing the guiding pulley to detect the running speed data and running distance data of the steel wire rope, and transmit these data to the data acquisition component 50.
[0023] Please refer to Figure 5 Figure 5
[0024] In this embodiment, the first fixing link 22 and the second fixing link 32 have the same structure, and both include a first link 221 and a second link 222. One end of the first link 221 is fixedly connected to the first magnetic base 21 or the second magnetic base 31, and the other end is rotatably connected to one end of the second link 222. The other end of the second link 222 is mounted with the first detecting member 23 or the second detecting member 33. By adjusting the angle between the first link 221 and the second link 222, the first detecting member 23 can be brought close to the steel wire rope, and the second detecting member 33 can be brought close to the traction wheel.
[0025] Please refer to Figure 7 Figure 7
[0026] Further, the data acquisition component 50 includes a fixed housing, a data processing module, a battery module, a wireless transmission module, and a third magnetic base. The third magnetic base is fixedly installed on the base of the traction machine, the fixed housing is fixedly installed on the third magnetic base, and the data processing module, the battery module, and the wireless transmission module are all fixedly installed in the fixed housing. The data processing module is electrically connected to the first detection member 23, the second detection member 33, the two acquisition members 41, and the wireless transmission component to receive the data measured by the first detection member 23, the second detection member 33, and the two acquisition members 41, and after organizing these data, transmit them to the wireless transmission module. The wireless transmission module is wirelessly connected to the operation terminal to send the received data to the operation terminal. The battery module is electrically connected to the data processing module and the wireless transmission module to supply power to the data processing module and the wireless transmission module.
[0027] In this embodiment, the operation terminal is an electronic device with computing power, storage function, and display function. For example, it is a tablet computer.
[0028] In this embodiment, the principle of the operation terminal calculating the slip amount of the steel wire rope of the elevator traction wheel is as follows:
[0029] 1. Measure the distance R from the outer edge of the traction wheel to the axis of the traction wheel and the pitch circle radius of the traction wheel (i.e., the distance from the center of the steel wire rope to the axis of the traction wheel) r in advance through a distance measuring tool, and store this data in the operation terminal;
[0030] 2. According to the operating speed data of the traction wheel, set the moment when the operating speed of the traction wheel is 0 as T1;
[0031] 3. According to the operating speed data of the steel wire rope, set the moment when the operating speed of the steel wire rope is 0 as T2;
[0032] 4. According to the change in the safety circuit current measured by the safety circuit measurement component 40, set the moment when the safety circuit current is zero as T0;
[0033] 5. According to the operating distance data of the traction wheel, extract the operating distance △L1 of the traction wheel between the moments of T0 and T1;
[0034] 6. According to the operating distance data of the steel wire rope, extract the operating distance of the steel wire rope between the moments of T0 and T2 (i.e., the actual operating distance of the steel wire rope) △L2;
[0035] 7. Calculate the pitch circle rotation distance of the traction wheel (i.e., the theoretical operating distance of the steel wire rope on the traction wheel between the moments of T0 and T2) according to Formula 1;
[0036] △L’1 = △L1 * r / R Formula 1
[0037] 8. Calculate the slip amount △L of the elevator traction wheel steel wire rope according to Formula 2;
[0038] △L = △L2 - △L’1 = △L2 - △L1 * r / R Formula 2
[0039] That is, subtract the theoretical running distance △L’1 of the wire rope from the actual running distance △L2 of the wire rope, so as to obtain the wire rope slip △L of the elevator traction wheel.
[0040] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A traction elevator wire rope slip measurement device, characterized in that: The invention comprises a computing terminal, a wire rope measuring component, a traction wheel measuring component, a safety circuit measuring component and a data acquisition component. The computing terminal is wirelessly connected to the data acquisition component, and the data acquisition component is electrically connected to the wire rope measuring component, the traction wheel measuring component and the safety circuit measuring component respectively. The acquisition end of the wire rope measuring component contacts the wire rope to detect the running speed data and the running distance data of the wire rope. The acquisition end of the traction wheel measuring component contacts the traction wheel to detect the running speed data and the running distance data of the traction wheel. The safety circuit measuring component is located in the traction machine and is electrically connected to the safety circuit of the traction machine to detect the time data when the traction wheel starts to decelerate. The data acquisition component is used to obtain the data detected by the wire rope measuring component, the traction wheel measuring component and the safety circuit measuring component, and upload the data to the computing terminal. The computing terminal is used to calculate the slippage of the wire rope of the traction elevator according to the data uploaded from the data acquisition component.
2. The traction elevator wire rope slippage measuring device according to claim 1, characterized in that: The wire rope measuring assembly includes a first magnetic base, a first fixed link and a first detection piece. The first magnetic base is fixedly mounted on the base of the guide pulley. One end of the first fixed link is fixed on the first magnetic base, and the other end is fixedly connected to the first detection piece. The first detection piece is electrically connected to the data acquisition assembly. The acquisition end of the first detection piece contacts the wire rope that passes around the guide pulley to detect the running speed data and running distance data of the wire rope, and transmit these data to the data acquisition assembly.
3. The traction elevator wire rope slippage measuring device according to claim 2, characterized in that: The traction wheel measurement assembly includes a second magnetic base, a second fixed connecting rod and a second detection piece. The second magnetic base is fixedly mounted on the base of the traction machine. One end of the second fixed connecting rod is fixed on the second magnetic base, and the other end is fixedly connected to the second detection piece. The second detection piece is electrically connected to the data acquisition assembly. The acquisition end of the second detection piece contacts the traction wheel to detect the running speed data and running distance data of the traction wheel, and transmit these data to the data acquisition assembly.
4. The traction elevator wire rope slippage measuring device according to claim 3, characterized in that: The safety circuit measurement component includes two acquisition components with the same structure, one end of the two acquisition components is electrically connected to the two ends of a terminal in the elevator host safety circuit, and the other end is electrically connected to the data acquisition component to detect the current change in the safety circuit, thereby obtaining the time data when the current in the safety circuit returns to zero.
5. The traction elevator wire rope slippage measuring device according to claim 4, characterized in that: The data acquisition component includes a fixed shell, a data processing module, a battery module, a wireless transmission module and a third magnetic base. The third magnetic base is fixedly installed on the base of the traction machine, and the fixed shell is fixedly installed on the third magnetic base. The data processing module, the battery module and the wireless transmission module are all fixedly installed in the fixed shell. The data processing module is wirelessly connected to the operation terminal, and is respectively electrically connected to the first detection component, the second detection component, the two acquisition components and the wireless transmission component to receive the data measured by the first detection component, the second detection component and the two acquisition components, and send the data to the operation terminal through the wireless transmission module. The battery module is electrically connected to the data processing module and the wireless transmission module, and is used to power the data processing module and the wireless transmission module.
6. The traction elevator wire rope slippage measuring device according to claim 1, characterized in that: The computing terminal is an electronic device with computing capability, storage function and display function.
Citation Information
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