CN112362208A - Torque measurement sensing alarm system and method thereof - Google Patents
Torque measurement sensing alarm system and method thereof Download PDFInfo
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- CN112362208A CN112362208A CN202011255809.0A CN202011255809A CN112362208A CN 112362208 A CN112362208 A CN 112362208A CN 202011255809 A CN202011255809 A CN 202011255809A CN 112362208 A CN112362208 A CN 112362208A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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Abstract
The invention discloses a torque measurement sensing alarm system and a method thereof. According to the invention, the torque value collection when the fastening joint is fastened in place is completed in the early stage to determine the standard of fastening in place, the torque wrench can send a signal of fastening in place when the fastening joint is fastened in place, and in the process of the signal of fastening in place, workers can hear the signal, and management and control personnel can receive the signal of fastening in place and can manage and control the fastening of the fastening joint, so that the fastening quality and the process of the personnel on the tower are managed and controlled, thereby filling the blank of management and control when the fastening joint is fastened, reducing the problem of heating of the fastening joint caused by the fact that the fastening joint is not fastened in place, and improving the working efficiency due to the fact that the field workers operate with definite specifications.
Description
Technical Field
The invention relates to the technical field of power transformation maintenance, in particular to a torque measurement sensing alarm system and a method thereof.
Background
Fastening means such as spanner are used for the multiple fastening scene of transformer substation, nevertheless finish fastening, still have the scene that a large amount of fastening connection department generated heat in the subsequent temperature measurement process of patrolling, and wherein very big proportion is that fastening connection department not fastens and targets in place and cause, and fastening connection department work is the outsourcing now and goes on for the construction unit, and construction unit personnel skill and the rigorous degree of treating work are uneven, and the power supply office team personnel of ground management and control can't be in the face of to high altitude construction personnel management and control, for example: tools on the operation site are complicated, communication among tool users is not in place, the bolt fastening is lack of quantitative standards, a large amount of manpower is required for statistics of historical data of the working amount in the current period, source tracing and tracking management after operation is not based on the data, and the phenomena are not beneficial to safety quality management and skill improvement of operators, so that the research based on the torque measurement sensing and alarming system is very necessary.
Disclosure of Invention
The invention aims to solve the problems and provides a torque measurement sensing and alarming system and a method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a torque measurement sensing alarm system, includes torque measurement device, installation device and receiving arrangement, torque measurement device is fixed in inside the main shaft of being surveyed through installation device, torque measurement device gathers main shaft torque signal through digital sensor, just main shaft torque signal sends monitoring data to receiving arrangement through wireless communication's mode, receiving arrangement receives after the monitoring data with data through serial ports transmission to the host computer.
As a further description of the above technical solution:
the torque measuring device comprises a sensor module, a signal processing module, a wireless communication module, a power supply module and a storage module, wherein the sensor module comprises a plurality of groups of digital torque sensors, the plurality of groups of digital torque sensors are fixedly arranged on the side wall of the mounting device, the mounting device enables the plurality of groups of torque sensors to fully contact with the main shaft, the plurality of groups of digital torque sensors adopt a single-bus data transmission mode, the plurality of groups of digital torque sensors are connected with the signal processing module through a data line, and the torque sensors acquire torque signals under the control of the signal processing module.
As a further description of the above technical solution:
the mounting device is composed of a measuring rod, two mechanical locking devices and a thin-wall pipe, the torque measuring device is fixedly connected to the outer surface wall of the mounting device, the torque sensor is arranged between the measuring rod and the thin-wall pipe, the wireless communication module and the signal processing module are fixed to one end of the measuring rod, the mounting device enables the two mechanical locking devices to automatically expand and fix the mounting device in the spindle through rotating the measuring rod, and the two mechanical locking devices can automatically contract when the measuring rod rotates reversely.
As a further description of the above technical solution:
the signal processing module adopts a low-power consumption single chip microcomputer as a processor and is responsible for configuring torque sensor parameters, signal processing, configuring operation parameters of the wireless communication module, controlling data sending and receiving and controlling the operation of the torque measuring device, the signal processing module configures torque sensor resolution, acquisition interval and alarm value parameters, filtering and compressing acquired signals, configures wireless communication module sending rate, sending frequency and sending power parameters, controls the content sent by the wireless communication module to configure system operation parameters according to configuration commands received by the wireless communication module, is in a low-power consumption state when idle, and is quickly recovered to a normal working state when a processing request is made, responds to the processing request in time and prolongs the working time of the system.
As a further description of the above technical solution:
the wireless communication module adopts the wireless radio frequency module of low-power consumption, just the wireless radio frequency module adopts duplex mode of operation, the wireless communication module passes through SPI parallel interface or I2C bus interface and is connected with signal processing module, wireless radio frequency module communication distance is not less than 100 meters under the spacious environment, wireless radio frequency module can get into the dormancy state in order to save energy voluntarily when no data transmission and receiving, just the electromagnetic wave activation function under the wireless radio frequency module supports low-power consumption mode to have hardware CRC error detection and some to multiple spot communication address control function.
As a further description of the above technical solution:
the power module is composed of an ultra-low power consumption voltage boosting and stabilizing chip and a battery, the voltage boosting and stabilizing chip has microampere-level working current and a wider input voltage range, the storage module adopts a low power consumption E2PRAM dynamic storage chip, the storage module stores the operating parameters of the torque measuring device and temporarily stores a part of measured data, the operating parameters are read from the storage module during system initialization or reset, when the wireless communication module breaks down or wireless communication is interfered, the monitored data are temporarily stored in the storage module, the monitored data are retransmitted when the wireless communication is normal, and the continuity of the monitored data is ensured.
As a further description of the above technical solution:
the receiving device is composed of another signal processing module, another wireless communication module, another power supply module and a serial communication module, the receiving device receives data sent by the torque measuring device and sends the data to the upper computer through a serial port, the receiving device also sends a control instruction sent by the upper computer to the torque measuring device, the signal processing module and the wireless communication module of the receiving device adopt the same hardware as corresponding modules in the torque measuring device, the receiving device needs to communicate with the upper computer, the serial communication module is added, the serial communication module adopts an RS232 or RS485 interface, and stable and reliable data transmission with the upper computer is realized through a serial port line.
As a further description of the above technical solution:
the method comprises the following steps:
firstly, adjusting the positions and the number of torque sensors on a mounting device according to measurement requirements to ensure that the torque sensors are superposed with positions to be measured, then placing the mounting device into a measured main shaft, and rotating a measuring rod to fix the mounting device at a certain angle; after the fixation is finished, a switch of the torque measuring device is turned on to enable the torque measuring device to be in a working state, torque measuring parameters are set through an upper computer, and after the parameter setting is finished, the torque of the main shaft is measured;
the torque measuring device enters initialization after being started, the initialization mainly completes the configuration of the operating parameters, and the signal processing module configures the operating parameters of each module according to the data in the storage module; after initialization is completed, the device judges whether an upper computer control signal is received or not, if the control signal is received, the received data are analyzed and stored in the storage module, the control device carries out initialization again, if the control signal is not received, the torque measuring device enters a torque acquisition process, the signal processing module controls the torque sensor to acquire torque, and after torque acquisition is completed, the signal processing module collects torque data and carries out simple processing, the torque data are sent out through the wireless communication module, and therefore one-time torque measurement is completed;
the receiving device is started and then initialized, whether signals are received or not is judged, received data are sent to an upper computer through a serial port if the signals are received and judged to be torque data, whether serial port data are received or not is judged if the signals are not received, and the data are sent to the torque measuring device through the wireless communication module if the serial port data are received.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
according to the invention, the torque value collection when the fastening joint is fastened in place is completed in the early stage to determine the standard of fastening in place, the torque wrench can send a signal of fastening in place when the fastening joint is fastened in place, and in the process of the signal of fastening in place, workers can hear the signal, and management and control personnel can receive the signal of fastening in place and can manage and control the fastening of the fastening joint, so that the fastening quality and the process of the personnel on the tower are managed and controlled, thereby filling the blank of management and control when the fastening joint is fastened, reducing the problem of heating of the fastening joint caused by the fact that the fastening joint is not fastened in place, and improving the working efficiency due to the fact that the field workers operate with definite specifications.
Drawings
FIG. 1 is a schematic diagram of a communication structure according to the present invention;
fig. 2 is a schematic diagram of the work flow structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-2, a torque measurement sensing alarm system includes a torque measurement device, a mounting device and a receiving device, the torque measurement device is fixed inside a measured spindle through the mounting device, the torque measurement device collects spindle torque signals through a digital sensor, and the spindle torque signals send monitoring data to the receiving device through a wireless communication mode, the receiving device receives the monitoring data and transmits the data to an upper computer through a serial port, the torque measurement device is composed of a sensor module, a signal processing module, a wireless communication module, a power module and a storage module, the sensor module is composed of a plurality of groups of digital torque sensors, the plurality of groups of torque sensors are fixedly mounted on a side wall of the mounting device, the mounting device enables the plurality of groups of torque sensors to fully contact with the spindle, and the plurality of groups of torque sensors all adopt a single bus data transmission mode, the torque sensors are connected with the signal processing module through a data line and collect torque signals under the control of the signal processing module;
the mounting device is composed of a measuring rod, two mechanical locking devices and a thin-wall pipe, the torque measuring device is fixedly connected to the outer surface wall of the mounting device, the torque sensor is arranged between the measuring rod and the thin-wall pipe, the wireless communication module and the signal processing module are fixed at one end of the measuring rod, the mounting device enables the two mechanical locking devices to automatically expand and fix the mounting device in the main shaft by rotating the measuring rod, the two mechanical locking devices can automatically contract when the measuring rod rotates reversely, the signal processing module adopts a low-power consumption single chip microcomputer as a processor and is responsible for configuring torque sensor parameters, processing signals, configuring operation parameters of the wireless communication module and controlling sending and receiving data and controlling the operation of the torque measuring device, the signal processing module configures torque sensor resolution, acquisition intervals and alarm value parameters and filtering and compressing acquired signals, configuring the sending rate, sending frequency and sending power parameters of a wireless communication module, controlling the content sent by the wireless communication module to configure the system operation parameters according to a configuration command received by the wireless communication module, enabling a signal processing module to be in a low power consumption state when idle, rapidly recovering to a normal working state when a processing request exists, responding to the processing request in time and prolonging the working time of the system;
the wireless communication module adopts a low-power-consumption wireless radio frequency module, the wireless radio frequency module adopts a duplex working mode, the wireless communication module is connected with the signal processing module through an SPI parallel interface or an I2C bus interface, the communication distance of the wireless radio frequency module is not less than 100 meters in an open environment, the wireless radio frequency module can automatically enter a dormant state to save energy when no data is sent and received, the wireless radio frequency module supports the electromagnetic wave activation function in the low-power-consumption mode, and has the functions of hardware CRC (cyclic redundancy check) error detection and point-to-multipoint communication address control, the boosting voltage stabilizing chip has microampere-level working current and a wider input voltage range, the storage module adopts a low-power-consumption E2PRAM dynamic storage chip, the storage module stores the operating parameters of the torque measuring device and temporarily stores a part of measured data, and the operating parameters are read from the storage module when the system is initialized or reset, when the wireless communication module is in failure or the wireless communication is disturbed, the monitoring data is temporarily stored in the storage module, the monitoring data is retransmitted when the wireless communication is normal, the continuity of the monitoring data is ensured, the receiving device consists of another signal processing module, another wireless communication module, another power supply module and a serial port communication module, the receiving device receives the data sent by the torque measuring device and sends the data to the upper computer through a serial port, the receiving device also sends a control instruction sent by the upper computer to the torque measuring device, the signal processing module and the wireless communication module of the receiving device and corresponding modules in the torque measuring device adopt the same hardware, the receiving device needs to communicate with the upper computer, a serial communication module is added, the serial communication module adopts an RS232 or RS485 interface, and stable and reliable data transmission with the upper computer is realized through a serial port line.
A torque measurement sensing alarm method comprises the following steps:
firstly, adjusting the positions and the number of torque sensors on a mounting device according to measurement requirements to ensure that the torque sensors are superposed with positions to be measured, then placing the mounting device into a measured main shaft, and rotating a measuring rod to fix the mounting device at a certain angle; after the fixation is finished, a switch of the torque measuring device is turned on to enable the torque measuring device to be in a working state, torque measuring parameters are set through an upper computer, and after the parameter setting is finished, the torque of the main shaft is measured;
the torque measuring device enters initialization after being started, the initialization mainly completes the configuration of the operating parameters, and the signal processing module configures the operating parameters of each module according to the data in the storage module; after initialization is completed, the device judges whether an upper computer control signal is received or not, if the control signal is received, the received data are analyzed and stored in the storage module, the control device carries out initialization again, if the control signal is not received, the torque measuring device enters a torque acquisition process, the signal processing module controls the torque sensor to acquire torque, and after torque acquisition is completed, the signal processing module collects torque data and carries out simple processing, the torque data are sent out through the wireless communication module, and therefore one-time torque measurement is completed;
the receiving device is started and then initialized, whether signals are received or not is judged, received data are sent to an upper computer through a serial port if the signals are received and judged to be torque data, whether serial port data are received or not is judged if the signals are not received, and the data are sent to the torque measuring device through the wireless communication module if the serial port data are received.
Because the electric warning spanner is a manual operation tool, the volume and the weight of the spanner must be reduced during design, for this reason, a stepping motor with small volume and easily controlled torque and rotating speed is selected as a power device, and a planetary gear mechanism with compact structure and large transmission ratio is adopted as a speed reducer, so that in order to improve the working efficiency and save the screwing time, the stepping motor is controlled by a microcomputer to realize two working rotating speeds in the screwing process of the bolt; in the second stage of bolt screwing, the joint torque is increased after the nut is jointed with the connected piece, so that the screwing torque of the wrench needs to be increased, and low-speed screwing can be realized;
because the wrench head is rotated, the strain gauge cannot be directly adhered to the wrench head, otherwise, the electric wire can be wound on the wrench head and is rolled up and broken, and if other rotating shaft torque sensors are adopted, the wrench is overlarge in size, high in cost and low in precision;
one end of the elastic body of the sensor is meshed with the low-speed gear ring through the gear teeth by utilizing the structural characteristics of the planetary gear, the other end of the elastic body of the sensor is fixedly connected with the shell through the pin, and then the elastic body is pasted with the strain gauge to sense the torque of the gear ring, so that the torque measurement problem of the rotating shaft is converted into the torque measurement problem of the fixed shaft;
the electric spanner consists of mainly microcomputer control system, step motor, two-stage planetary gear mechanism, casing, torque sensor, spanner head, etc. when the step motor rotates, the step motor drives the central wheel of the high speed planetary gear mechanism to rotate, the other central wheel (toothed ring) of the mechanism is connected to the casing, the torque is transmitted via the tie rod to the central wheel of the low speed planetary gear mechanism, the other central wheel (toothed ring) of the mechanism is connected to the sensor and fixed to the casing via the sensor, and the torque is transmitted via the tie rod to the spanner head to tighten the screw bolt. After the torque relationship between the gear ring (sensor) of the low-speed planetary gear mechanism and the tie rod is determined, the torque of the wrench head can be indirectly measured by monitoring the torque value of the sensor. The microcomputer control system collects the torque signal of the sensor, and feeds back the torque signal to the stepping motor after processing, thereby realizing the control of the torque and the rotating speed of the wrench. (ii) a
In bolt assembly, to ensure the reliability and fatigue strength of bolt connection, the pretightening force of the bolt connection must be properly controlled, which depends on the precise control of the wrench tightening torque to a great extent. The electric torque wrench is driven by the stepping motor and the planetary gear, so that the defects of high rotation speed, large impact force, unstable torque and the like of the traditional pneumatic wrench are overcome, accurate monitoring of bolt tightening torque can be realized, and the electric torque wrench becomes one of indispensable electric warning tools in projects such as steel structures and the like;
the electric warning spanner adopts a stepping motor and a planetary gear mechanism, solves the problems of power transmission and dynamic torque detection and control, and has novel principle and reliable device. The static calibration result of the torque sensor shows that the sensor has stable output, higher sensitivity in the measurement range and smaller linear error and elastic hysteresis, and can meet the requirement of design precision.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a torque measurement sensing alarm system, includes torque measurement device, installation device and receiving arrangement, its characterized in that, torque measurement device passes through the installation device and is fixed in inside the main shaft of being surveyed, torque measurement device passes through digital sensor and gathers main shaft torque signal, just main shaft torque signal sends monitoring data to receiving arrangement through wireless communication's mode, receiving arrangement receives behind the monitoring data with data through serial ports transmission to host computer.
2. The torque measurement sensing alarm system according to claim 1, wherein the torque measurement device comprises a sensor module, a signal processing module, a wireless communication module, a power module and a storage module, the sensor module comprises a plurality of sets of digital torque sensors, the plurality of sets of torque sensors are fixedly mounted on a side wall of a mounting device, the mounting device enables the plurality of sets of torque sensors to be fully contacted with the main shaft, the plurality of sets of torque sensors are all in a single-bus data transmission mode, the plurality of sets of torque sensors are connected with the signal processing module through a data line, and the torque sensors collect torque signals under the control of the signal processing module.
3. The torque measurement sensing alarm system according to claim 1, wherein the mounting device comprises a measuring rod, two mechanical locking devices and a thin-walled tube, the torque measuring device is fixedly connected to the outer surface wall of the mounting device, the torque sensor is arranged between the measuring rod and the thin-walled tube, the wireless communication module and the signal processing module are fixed at one end of the measuring rod, the mounting device enables the two mechanical locking devices to automatically expand and fix the mounting device in the spindle by rotating the measuring rod, and the two mechanical locking devices automatically contract when the measuring rod is rotated reversely.
4. The torque measurement sensing alarm system according to claim 2, wherein the signal processing module uses a low power consumption single chip as a processor, and is responsible for configuring torque sensor parameters, signal processing, configuring operation parameters of the wireless communication module, controlling data transmission and reception, and controlling operation of the torque measurement device, the signal processing module configures torque sensor resolution, acquisition interval, and alarm value parameters, and filtering and compressing the acquired signals, the wireless communication module configures transmission rate, transmission frequency, and transmission power parameters, the content transmitted by the wireless communication module is controlled to configure system operation parameters according to a configuration command received by the wireless communication module, the signal processing module is in a low power consumption state when idle, and is rapidly restored to a normal operation state when a processing request is made, and the processing request is responded in time, and the working time of the system is prolonged.
5. The torque measurement sensing alarm system according to claim 2, wherein the wireless communication module is a low power consumption wireless radio frequency module, and the wireless radio frequency module is in a duplex operating mode, the wireless communication module is connected to the signal processing module through an SPI parallel interface or an I2C bus interface, the communication distance of the wireless radio frequency module in an open environment is not less than 100 meters, the wireless radio frequency module will automatically enter a sleep state to save energy when no data is transmitted and received, and the wireless radio frequency module supports an electromagnetic wave activation function in the low power consumption mode, and has functions of hardware CRC error detection and multipoint-to-multipoint communication address control.
6. The torque measurement sensing alarm system according to claim 2, wherein the power module comprises an ultra-low power consumption boost voltage stabilization chip and a battery, the boost voltage stabilization chip has a microampere-level working current and a wide input voltage range, the storage module adopts a low power consumption E2PRAM dynamic storage chip, the storage module stores the operating parameters of the torque measurement device and temporarily stores a part of the measured data, the operating parameters are read from the storage module when the system is initialized or reset, the monitored data are temporarily stored in the storage module when the wireless communication module fails or the wireless communication is disturbed, and the monitored data are retransmitted when the wireless communication is normal, so that the continuity of the monitored data is ensured.
7. The torque measurement sensing alarm system according to claim 1, wherein the receiving device comprises another signal processing module, another wireless communication module, another power module and a serial communication module, the receiving device receives data sent by the torque measurement device and sends the data to the upper computer through a serial port, the receiving device also sends a control instruction sent by the upper computer to the torque measurement device, the signal processing module and the wireless communication module of the receiving device and corresponding modules in the torque measurement device adopt the same hardware, the receiving device needs to communicate with the upper computer, the serial communication module is added, the serial communication module adopts an RS232 or RS485 interface, and stable and reliable data transmission with the upper computer is realized through a serial port line.
8. A torque measurement sensing alarm method is characterized by comprising the following steps:
firstly, adjusting the positions and the number of torque sensors on a mounting device according to measurement requirements to ensure that the torque sensors are superposed with positions to be measured, then placing the mounting device into a measured main shaft, and rotating a measuring rod to fix the mounting device at a certain angle; after the fixation is finished, a switch of the torque measuring device is turned on to enable the torque measuring device to be in a working state, torque measuring parameters are set through an upper computer, and after the parameter setting is finished, the torque of the main shaft is measured;
the torque measuring device enters initialization after being started, the initialization mainly completes the configuration of the operating parameters, and the signal processing module configures the operating parameters of each module according to the data in the storage module; after initialization is completed, the device judges whether an upper computer control signal is received or not, if the control signal is received, the received data are analyzed and stored in the storage module, the control device carries out initialization again, if the control signal is not received, the torque measuring device enters a torque acquisition process, the signal processing module controls the torque sensor to acquire torque, and after torque acquisition is completed, the signal processing module collects torque data and carries out simple processing, the torque data are sent out through the wireless communication module, and therefore one-time torque measurement is completed;
the receiving device is started and then initialized, whether signals are received or not is judged, received data are sent to an upper computer through a serial port if the signals are received and judged to be torque data, whether serial port data are received or not is judged if the signals are not received, and the data are sent to the torque measuring device through the wireless communication module if the serial port data are received.
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| JP2003011038A (en) * | 2001-06-29 | 2003-01-15 | Nsk Ltd | Linearly moving device with sensor |
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Application publication date: 20210212 |