Double-rocker-arm floor derrick using wireless bearing system

Abstract

The invention discloses a double-rocker-arm floor derrick using a wireless bearing system. The double-rocker-arm floor derrick comprises an upper hanging ring, a weighing unit and a lower hanging ring which are arranged on a derrick body. The upper lifting ring is fixed on a lifting hook of an electric derrick, and the lower lifting ring comprises an annular structure for fixing a lifting piece; the weighing unit is located between the upper hanging ring and the lower hanging ring and is provided with a weighing module, a 5G sending module and a storage battery, the controller of the electric power holding pole is provided with a 5G receiving module and is in communication connection with the weighing unit, and when hanging pieces with different weights exist, the weighing module sends different voltage or current signals to the controller of the electric power holding pole through the 5G sending module; by integrating the 5G communication module and the weighing unit, wireless real-time transmission of hoisting weight is achieved, the problem of line winding caused by traditional wired connection is solved, and the flexibility of derrick rotating operation is improved.

Description

Technical Field

[0001] The present invention relates to the field of electric power gin poles, and particularly to a double-jib floor-standing gin pole using a wireless load-bearing system. Background Art

[0002] In the field of electric power transmission and transformation engineering construction, as a core lifting device, the safety and precision of the hoisting operation of a double-jib gin pole are directly related to the construction efficiency and personnel safety. Most traditional gin pole weighing devices adopt mechanical dynamometers or single-sensor structures, and transmit weight signals to the console through wired transmission methods. However, in actual operations, such devices expose the following technical defects:

[0003] Firstly, the wired transmission method is limited by the rotation operation characteristics of the gin pole, and is prone to problems such as wire entanglement and interface wear. Especially in complex working conditions such as mountainous areas and cross-river areas, long-term bending of the cable is likely to cause signal attenuation or even interruption, forcing the equipment to be frequently shut down for maintenance. Secondly, most existing weighing devices adopt a single weighing sensor arranged in central symmetry. When the center of gravity of the suspended load deviates, a moment error will occur, resulting in a weight measurement deviation exceeding ±5%, which cannot meet the precision requirements of millimeter-level installation of ultra-high voltage equipment. Moreover, the overload protection mechanism of traditional devices relies on manual observation of instrument readings, and there is a problem of response lag. When instantaneous overload occurs, it is difficult to trigger the gin pole brake in a timely manner. Industry statistics in the past three years show that the proportion of hoisting accidents caused by such problems reaches 23.7%.

[0004] In recent years, although wireless weighing devices using Zigbee or Bluetooth transmission (such as

[0005] CN20181023567.X) have emerged, their transmission distance is limited within 50 meters and is easily interfered by the metal structure of the tower. When the height of the gin pole exceeds 80 meters, the communication success rate is less than 60%. In addition, existing wireless devices generally have a short board in power supply and endurance. The capacity of the storage battery drops by more than 40% in a low-temperature environment of -20°C, and it is impossible to guarantee the all-weather operation requirements. More critically, the open communication protocol of traditional devices has a risk of data tampering. In the context of the requirement for equipment networking in the construction of smart grids, the information security hidden danger is particularly prominent.

[0006] Therefore, there is an urgent need to develop a gin pole weighing device with high-precision dynamic weighing, anti-interference wireless transmission, and intelligent safety protection to break through the bottleneck of existing technologies and meet the intelligent and highly reliable requirements for hoisting operations in the construction of new power systems. Summary of the Invention

[0007] To solve the above technical problems, the present invention provides a double-jib floor-standing gin pole using a wireless load-bearing system. The weighing module sends different voltage or current signals to the controller of the power gin pole through a 5G sending module. By integrating the 5G communication module and the weighing unit, wireless real-time transmission of the hoisting weight is achieved, eliminating the problem of wire entanglement caused by traditional wired connections and improving the flexibility of the gin pole rotation operation.

[0008] The present invention adopts the following technical solutions:

[0009] A double-jib floor-standing gin pole using a wireless load-bearing system, including an upper sling ring, a weighing unit, and a lower sling ring provided on the gin pole body; the upper sling ring is fixed to the hook of the power gin pole, and the lower sling ring includes an annular structure for fixing the hoisting piece; the weighing unit is located between the upper sling ring and the lower sling ring, and has a weighing module, a 5G sending module, and a storage battery. The controller of the power gin pole has a 5G receiving module, which is communicatively connected to the weighing unit. When there are hoisting pieces of different weights, the weighing module sends different voltage or current signals to the controller of the power gin pole through the 5G sending module. By integrating the 5G communication module and the weighing unit, wireless real-time transmission of the hoisting weight is achieved, eliminating the problem of wire entanglement caused by traditional wired connections and improving the flexibility of the gin pole rotation operation.

[0010] Preferably, the weighing module includes a strain gauge sensor array, a signal amplification circuit, and an analog-to-digital conversion module. The strain gauge sensor array is annularly distributed on the pressure-bearing surface between the upper sling ring and the lower sling ring. The annularly distributed strain gauge sensor array can evenly capture the multi-dimensional forces generated by the offset of the center of gravity of the hoisting piece, and combined with signal amplification and analog-to-digital conversion technologies, the weight measurement accuracy is improved.

[0011] Preferably, the 5G sending module uses the AES-256 encryption protocol to encapsulate and transmit the weight data, and is built-in with a dynamic frequency switching unit for automatically jumping to a communication frequency band in case of channel interference. The AES-256 encryption protocol prevents the data from being maliciously tampered with during transmission, and the dynamic frequency switching unit makes the communication error rate lower than 10 -6 (compared with 10 of ordinary wireless devices -3 ), ensuring that the communication success rate remains above 95% in the strong electromagnetic interference environment of the substation.

[0012] Preferably, the storage battery is externally connected to a foldable solar charging panel, which is detachably installed on the metal surface of the power gin pole through a magnetic interface. The foldable solar charging panel can provide a continuous charging power of 20W under sunny conditions, extending the battery life of the storage battery by 3 to 5 times, and realizing quick disassembly and assembly in cooperation with the magnetic interface, solving the problem of operation interruption caused by the sudden drop of the traditional battery capacity in low-temperature environments.

[0013] Preferably, the inner wall of the annular structure of the lower suspension ring is provided with an anti - detachment locking mechanism, which includes a spring - loaded wedge - shaped block and an electromagnetic release device. When the lifting weight exceeds the rated value, it is automatically triggered to lock. When the anti - detachment locking mechanism detects overloading, it can complete mechanical locking within 0.2 seconds. Compared with the manual response speed (average 2.5 seconds), it is increased by 12 times, and the risk of the suspended component slipping off is reduced by more than 90%. It is especially suitable for emergency braking scenarios under sudden bad weather such as typhoons.

[0014] Preferably, the surface of the strain - type sensor array is coated with a nano - ceramic protective layer, with a thickness of 0.2 - 0.5 mm and a Shore hardness ≥ 90 HD. The nano - ceramic protective layer enables the sensor to have a wear - resistant life of up to 100,000 cycles (30,000 cycles for uncoated sensors), while maintaining a temperature drift coefficient ≤ 0.005% / °C (0.03% / °C for traditional protective layers), ensuring the measurement stability of the sensor at extreme temperatures from - 40°C to 80°C.

[0015] Preferably, it also includes a built - in automatic calibration system, which realizes zero - point drift compensation by comparing the sensor reference values in three no - load states. The calibration period is adjustable from 24 to 720 hours. Through periodic zero - point correction, the automatic calibration system controls the cumulative error caused by long - term use within 0.5% FS / year (3% FS / year for uncalibrated devices), reduces the on - site manual calibration frequency (from once a day to once a month), and reduces the operation and maintenance cost by more than 30%.

[0016] Preferably, the controller is configured with a dynamic load analysis module, which calculates the moment deviation value in real - time through the received weight signal. When the deviation exceeds the safety threshold, it triggers an audible and visual alarm and automatic speed reduction control. The dynamic load analysis module calculates the moment deviation value of the boom in real - time. When it detects that the deviation exceeds 10% of the safety threshold, the response time of the braking system is shortened to 50 ms, avoiding the accident of the mast tipping over caused by moment imbalance.

[0017] Preferably, the weighing unit is embedded with a GPS positioning module and a motion sensor, which synchronously record the spatial position information and acceleration data during the hoisting operation. The collaborative work of the GPS positioning and the motion sensor can generate a three - dimensional coordinate map of the hoisting trajectory (positioning accuracy ± 10 cm), and combine the acceleration data to realize the analysis of the swing amplitude of the suspended component, providing a quantitative basis for the evaluation of operation standardization.

[0018] Compared with the prior art, the present invention has the following advantages: By integrating the 5G communication module and the weighing unit, it realizes the wireless real - time transmission of the hoisting weight, eliminates the problem of wire entanglement caused by traditional wired connections, and improves the flexibility of the mast rotation operation; The voltage / current dual - mode signal transmission mechanism can adapt to the anti - interference requirements under different working conditions, ensuring the transmission reliability of weight data in a complex electromagnetic environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a double-rocker floor-mounted gin pole using a wireless load-bearing system.

[0020] In the figure, there are an upper suspension ring 1, a weighing unit 2, and a lower suspension ring 3. Specific implementation manners

[0021] For the convenience of understanding the technical solution of the present invention, the following will be described in detail in combination with the accompanying drawings and specific embodiments.

[0022] Embodiment 1

[0023] As Figure 1 shown, a double-rocker floor-mounted gin pole using a wireless load-bearing system includes an upper suspension ring 1, a weighing unit 2, and a lower suspension ring 3 provided on the gin pole body; the upper suspension ring 1 is fixed to the hook of the power gin pole, and the lower suspension ring 3 includes an annular structure for fixing the hanging member; the weighing unit 2 is located between the upper suspension ring 1 and the lower suspension ring 3 and has a weighing module group, a 5G sending module, and a storage battery. The controller of the power gin pole has a 5G receiving module and is communicatively connected to the weighing unit 2. When there are hanging members of different weights, the weighing module group sends different voltage or current signals to the controller of the power gin pole through the 5G sending module. By integrating the 5G communication module with the weighing unit, wireless real-time transmission of the hoisting weight is realized, the problem of wire entanglement caused by traditional wired connection is eliminated, and the flexibility of the gin pole rotation operation is improved.

[0024] The weighing module group includes a strain gauge sensor array, a signal amplification circuit, and an analog-to-digital conversion module. The strain gauge sensor array is annularly distributed on the pressure-bearing surface between the upper suspension ring 1 and the lower suspension ring 3. The annularly distributed strain gauge sensor array can evenly capture the multi-dimensional forces generated by the offset of the center of gravity of the hanging member, and combined with the signal amplification and analog-to-digital conversion technologies, the weight measurement accuracy is improved.

[0025] The 5G sending module uses the AES-256 encryption protocol to encapsulate and transmit the weight data, and is built-in with a dynamic frequency switching unit for automatically jumping to a communication frequency band in case of channel interference. The AES-256 encryption protocol prevents the data from being maliciously tampered with during transmission, and the dynamic frequency switching unit makes the communication error rate lower than 10 -6 (compared with 10 -3 ) of ordinary wireless devices, ensuring that the communication success rate remains above 95% in the strong electromagnetic interference environment of the substation.

[0026] Preferably, the storage battery is externally connected with a foldable solar charging panel, which is detachably installed on the metal surface of the power pole through a magnetic attraction interface. The foldable solar charging panel can provide a continuous charging power of 20W under sunny conditions, extending the battery life by 3 to 5 times. It is combined with the magnetic attraction interface to achieve rapid disassembly and assembly, solving the problem of operation interruption caused by the sudden drop in the capacity of traditional batteries in low-temperature environments.

[0027] Preferably, the inner wall of the annular structure of the lower suspension ring 3 is provided with an anti-drop locking mechanism, which includes a spring-loaded wedge-shaped block and an electromagnetic release device. When the lifting weight exceeds the rated value, it is automatically triggered to lock. When the anti-drop locking mechanism detects overloading, it can complete mechanical locking within 0.2 seconds, which is 12 times faster than the manual response speed (average 2.5 seconds), reducing the risk of sling slippage accidents by more than 90%. It is especially suitable for emergency braking scenarios under sudden severe climates such as typhoons.

[0028] The surface of the strain gauge sensor array is coated with a nano-ceramic protective layer with a thickness of 0.2 - 0.5 mm and a Shore hardness ≥ 90 HD. The nano-ceramic protective layer enables the sensor to have a wear-resistant life of 100,000 cycles (30,000 cycles for uncoated sensors), while maintaining a temperature drift coefficient ≤ 0.005% / °C (0.03% / °C for traditional protective layers), ensuring the measurement stability of the sensor at extreme temperatures from -40°C to 80°C.

[0029] It also includes a built-in automatic calibration system, which realizes zero-drift compensation by comparing the sensor reference values in three no-load states. The calibration period is adjustable from 24 to 720 hours. Through periodic zero correction, the automatic calibration system controls the cumulative error caused by long-term use within 0.5% FS / year (3% FS / year for uncalibrated devices), reducing the on-site manual calibration frequency (from once a day to once a month) and reducing the operation and maintenance cost by more than 30%.

[0030] The controller is configured with a dynamic load analysis module, which calculates the moment deviation value in real time through the received weight signal. When the deviation exceeds the safety threshold, it triggers an audible and visual alarm and automatic speed reduction control. The dynamic load analysis module calculates the moment deviation value of the boom in real time. When it detects that the deviation exceeds 10% of the safety threshold, the response time of the braking system is shortened to 50 ms, avoiding the pole overturning accident caused by moment imbalance.

[0031] The weighing unit 2 is embedded with a GPS positioning module and a motion sensor, which synchronously record the spatial position information and acceleration data during the hoisting operation. The coordinated work of the GPS positioning and the motion sensor can generate a three-dimensional coordinate map of the hoisting trajectory (positioning accuracy ±10 cm), and analyze the swing amplitude of the sling in combination with the acceleration data, providing a quantitative basis for the standardized evaluation of the operation.

[0032] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is subject to the scope defined by the claims. Several improvements and refinements made by those skilled in the art without departing from the spirit and scope of the present invention shall also be regarded as within the protection scope of the present invention.

Claims

1. A double rocker arm ground-mounted pole using a wireless load-bearing system, characterized in that: The invention comprises an upper lifting ring (1), a weighing unit (2) and a lower lifting ring (3) arranged on a pole body; the upper lifting ring (1) is fixed on a hook of the electric pole, and the lower lifting ring (3) comprises an annular structure for fixing a hanging piece; the weighing unit (2) is located between the upper lifting ring (1) and the lower lifting ring (3), and comprises a weighing module, a 5G transmission module and a storage battery; the controller of the electric pole has a 5G receiving module, which is connected to the weighing unit (2) in communication; when there are hanging pieces of different weights, the weighing module transmits different voltage or current signals to the controller of the electric pole through the 5G transmission module.

2. The double rocker arm ground-mounted pole using a wireless load-bearing system according to claim 1, characterized in that: The weighing module comprises a strain sensor array, a signal amplification circuit and an analog-to-digital conversion module, and the strain sensor array is distributed in a ring shape on the pressure-bearing surface between the upper hanging ring (1) and the lower hanging ring (3).

3. The double rocker arm ground-mounted pole using a wireless load-bearing system according to claim 1, characterized in that: The 5G sending module uses the AES-256 encryption protocol to encapsulate and transmit weight data, and has a built-in dynamic frequency switching unit for automatically jumping to the communication frequency band when the channel is interfered.

4. The double rocker arm ground-mounted pole using a wireless load-bearing system according to claim 1, characterized in that: The storage battery is externally connected to a foldable solar charging panel, and the solar charging panel can be detachably mounted on the metal surface of the power pole through a magnetic suction interface.

5. The double rocker arm ground-mounted pole using a wireless load-bearing system according to claim 1, characterized in that: The inner wall of the annular structure of the lower lifting ring (3) is provided with an anti-dropping locking mechanism, which comprises a spring-loaded wedge-shaped clamping block and an electromagnetic release device, and automatically triggers locking when the lifting weight exceeds the rated value.

6. The double rocker arm ground-mounted pole using a wireless load-bearing system according to claim 2, characterized in that: The surface of the strain sensor array is coated with a nano-ceramic protective layer with a thickness of 0.2-0.5 mm and a Shore hardness of ≥90 HD.

7. The double rocker arm ground-mounted pole using a wireless load-bearing system according to claim 1, characterized in that: It also includes a built-in automatic calibration system that achieves zero drift compensation by comparing the sensor reference value under three no-load conditions. The calibration period is adjustable from 24 to 720 hours.

8. The double rocker arm ground-mounted pole using a wireless load-bearing system according to claim 1, characterized in that: The controller is equipped with a dynamic load analysis module, which calculates the torque deviation value in real time through the received weight signal, and triggers sound and light alarm and automatic speed reduction control when the deviation exceeds the safety threshold.

9. The double rocker arm ground-mounted pole using a wireless load-bearing system according to claim 1, characterized in that: The weighing unit (2) is embedded with a GPS positioning module and a motion sensor, and synchronously records the spatial position information and acceleration data during the lifting operation.

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