CN112149848A - Torque detection Internet of things cloud service method and system - Google Patents

Abstract

According to the cloud service method and system for the torque detection Internet of things, data transmission is carried out between the hydraulic wrench and the control host through the wireless communication module, data transmission is carried out between the control host and the monitoring platform through the wireless communication module, the control host records the number of screwed bolts of the hydraulic wrench, and a stress curve graph of each screwed bolt is generated. The invention assists in judging the condition of an overhaul or operation and maintenance team by monitoring the torque value, the fastening quantity, the pressure maintaining time and other parameters of the bolt in real time, each monitoring parameter supports upper and lower limit alarm, assists the operation and maintenance personnel in finding problems in the bolt fastening process in time, and can guide a maintenance department to deal with and prevent potential safety hazards in time and prevent the potential safety hazards in the bud.

Description

A kind of torque detection Internet of things cloud service method and system

Technical field:

The invention relates to a method and system for a torque detection Internet of Things cloud service.

Background technique:

Hydraulic wrench is one of the special equipment at present, which is characterized by huge torque. It is an important installation tool for the installation and maintenance of various large-scale equipment. At present, in various markets, there are certain uncontrollable and unmonitored difficulties in the actual use of hydraulic wrenches. During the tightening process of workers, there are inaccurate torque of hydraulic wrenches, irregular operation procedures of workers, and leakage of bolt tightening, etc. question. The construction party is often unable to monitor whether the torque of each bolt meets the standard in real time. There are often many bolts in large equipment, and there is a certain possibility that the tightening may be missed, including whether the torque of the hydraulic wrench meets the standard, etc., which are all uncontrollable factors. Accidents caused by bolt problems are not uncommon. It is not uncommon to see the failure of the bolt torque to cause the collapse of the wind turbine. In large equipment, the bearing cap torque is too large to cause eccentric wear and lead to scrap. Therefore, it is necessary to improve the existing technology. In order to solve the shortcomings of the existing technology.

Invention content:

The present invention provides a torque detection IoT cloud service method and system in order to solve the above-mentioned problems in the prior art.

The technical scheme adopted in the present invention includes:

1. A torque detection Internet of Things cloud service method, characterized in that: comprising:

1) Number the hydraulic wrench, and input the number information of each hydraulic wrench and the corresponding working torque information of each hydraulic wrench to the control host;

2) Classify and number bolts with different tightening torque values on the construction site, input the bolt number information and the number of all bolts with the same tightening torque value under the same number to the control host, according to the work of the hydraulic wrench input in the control host Torque information, match the number of all bolts with the same tightening torque value to the number of a suitable hydraulic wrench;

3) Set three incremental grab values for the hydraulic wrench of the corresponding number according to the tightening torque value of the bolts after matching, and set the pressure holding time after each grab value. Tighten the bolts in the hydraulic wrench and exceed the maximum grab value. After the holding time of the value, it means that the bolt tightening is completed;

4) When the hydraulic wrench of each number tightens all the bolts of the corresponding number, the hydraulic wrench rotates all the bolts one by one three times, and the first time rotates all the bolts one by one to the first grab value set by the hydraulic wrench and completes the operation. Holding pressure, for the second time, rotate all the bolts one by one after the first holding pressure to the second grab value set by the hydraulic wrench and complete the holding pressure, and for the third time, complete the tightening of all bolts after the second holding pressure one by one. After each numbered hydraulic wrench completes one bolt tightening, the control host records the number of bolts tightened by the hydraulic wrench of this number, and displays the completed bolt tightening quantity on the control host;

In the process of tightening the bolts by the hydraulic wrench, the hydraulic wrench displays the output torque when tightening each bolt in real time, and transmits the output torque of each bolt to the control host, and the control host generates an output torque according to the received output torque. The corresponding force curve diagram of the numbered hydraulic wrench is marked, and the three grab values and the holding time after the three grab values are marked on the force curve diagram when each bolt is tightened;

5) The control host saves or uploads the monitored bolt stress curve, pressure holding time and tightened bolt data to the cloud, and displays it through the background monitoring platform.

Further, the working torque information of the hydraulic wrench is the maximum torque of the hydraulic wrench.

Further, the hydraulic wrench adopts a hydraulic wrench with a torque indicator.

Further, the three grab values of the hydraulic wrench are set to 30%, 60% and 100% of the tightening torque value of the corresponding bolts of the matching number, and the holding time after the grab value is 30% of the corresponding bolt tightening torque value is 3s, The holding time after the grab value is 60% of the corresponding bolt tightening torque value is 3s, the grab value is the corresponding bolt tightening torque value, and the holding time after 100% is at least 10s.

A torque detection IoT cloud service system includes a control host, a monitoring platform, a hydraulic wrench with torque display and a wireless communication module, the hydraulic wrench performs data transmission between the wireless communication module and the control host, and the control host communicates with the wireless communication module through the wireless communication module. Data transmission is performed with the monitoring platform, the control host records the number of tightened bolts of the hydraulic wrench, and generates a force curve diagram of each tightened bolt.

The present invention has the following beneficial effects:

The present invention assists in judging the status of the maintenance or operation and maintenance team by monitoring the torque value, tightening quantity, pressure holding time and other parameters of the bolts in real time. Each monitoring parameter supports upper and lower limit alarms, and assists the operation and maintenance personnel to detect the bolt tightening process in time. problems, you can guide the maintenance department to deal with and prevent potential safety hazards in a timely manner, and prevent them from happening in the first place.

Description of drawings:

Figure 1 is a schematic diagram of the system of the present invention.

Figure 2 shows the force curve of the bolt.

Figure 3 shows the force curve of the bolt.

Detailed ways:

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, a torque detection IoT cloud service system includes a control host 2, a monitoring platform 3, a hydraulic wrench 1 with torque display and a wireless communication module, and the hydraulic wrench 1 conducts data transmission between the hydraulic wrench 1 and the control host 2 through the wireless communication module Transmission, the control host 2 performs data transmission with the monitoring platform 3 through the wireless communication module. The control host 2 records the number of tightened bolts of the hydraulic wrench 1, and generates a force curve diagram of each tightened bolt.

The following describes in detail the usage method of the torque detection IoT cloud service system of the present invention.

The present invention provides a torque detection IoT cloud service method, comprising:

1) Before use, number the hydraulic wrenches needed in the construction market one by one, and then input the number information of each hydraulic wrench and the maximum torque of the hydraulic wrench into the control host.

2) The bolts are classified according to the tightening torque value of each bolt at the construction site, for example, 1000 N·m bolts are classified into one class, 1500 N·m bolts are classified into one class, and 2000 N·m bolts are classified into one class. Number the classified bolts, and input the number information of the bolts and the quantity of all bolts under each number catalog to the control host. Then select a hydraulic wrench with a suitable number according to the classified bolt tightening torque value, so that a numbered hydraulic wrench matches a numbered bolt.

For example, when the hydraulic wrench numbered 1 is tightening 4 bolts of 1000 N m numbered A, the hydraulic wrench numbered 1 is matched with the bolt numbered A on the control host in advance, and then the control host Enter the total number of bolts numbered A, i.e. 4.

3) Set three incremental grab values for the hydraulic wrench of the corresponding number according to the tightening torque value of the bolts after matching, and set the pressure holding time after each grab value. Tighten the bolts in the hydraulic wrench and exceed the maximum grab value. After the holding time of the value, it means that the bolt tightening is completed;

When the hydraulic wrench numbered 1 is tightening the 1000 N m bolt, the three gripping values of the hydraulic wrench number 1 are set to 300 N m, 600 N m and 1000 N m respectively. After 600N·m, set a dwell time of 3s respectively, and set a dwell time of at least 10s after 1000N·m.

4) When the hydraulic wrench numbered 1 is tightening the 4 bolts of 1000 N·m numbered A, in order to ensure the bolts are evenly stressed, the hydraulic wrench rotates all the bolts one by one three times. That is, the hydraulic wrench numbered 1 rotates all the bolts one by one to 300N·m for the first time and maintains the pressure for 3s, and for the second time, rotates all the bolts to 600N·m after the first pressure maintenance and maintains the pressure for 3s. For the third time, rotate all the bolts one by one by 1000 N m and hold the pressure for 10 s to complete the tightening of the bolts.

When tightening, by observing whether the hydraulic wrench reaches the maximum grasp value and completes the pressure holding time to monitor whether the worker has tightened the bolt in place, so as to standardize the worker's operation process. After the hydraulic wrench is tightened every time a bolt is completed, a bolt will be displayed under the A bolt number catalog on the control host.

It should be noted that, in order to avoid repeated tightening of the bolts resulting in the superposition of the number of records on the control host, in the actual operation process, when a worker tightens a bolt, the tightened bolt needs to be marked with a line. The purpose of controlling the number of bolts input on the host is to better monitor the work of workers and prevent workers from having irregular operating procedures and leaking bolts.

In the process of tightening the bolts by the hydraulic wrench, the hydraulic wrench displays the output torque when tightening each bolt in real time, and transmits the output torque of each bolt to the control host, and the control host generates an output torque according to the received output torque. The corresponding force curve of the numbered hydraulic wrench (as shown in Figure 2), and the three gripping values when each bolt is tightened and the holding time after the three gripping values are marked on the force curve.

According to Figure 2, when the hydraulic wrench numbered 1 is tightening the 4 bolts numbered A, after the hydraulic wrench is turned on, the hydraulic wrench displays the output torque in real time. After the hydraulic wrench rotates the four bolts one by one to 300N m and maintains the pressure for 3s for the first time, the force curve graph captures the first pressure holding time of the four bolts. In actual operation, there may be work interruptions, that is, during the process of tightening the bolts, the workers temporarily interrupt the rotation of the bolts, and when the bolts do not reach the holding pressure set by the hydraulic wrench, they will be under stress at this time. The figure shows the a state. When the bolt is re-rotated, the force curve of the bolt will be regenerated after the curve of the a state.

When rotating 4 bolts one by one for the second time, if one bolt does not reach 300N·m during the first rotation, after directly rotating the 4 bolts to 600N·m for the second time, the figure shows The case where a bolt did not reach the holding pressure during the first rotation (the bolt in the state of curve a in Figure 3 did not reach 300N·m). Therefore, according to the force diagram, it is very intuitive to observe whether each bolt rotates according to the requirements of the specification, and then regulate and monitor the maintenance of workers.

When the torque of the hydraulic wrench reaches 300N·m, 600N·m and 1000N·m, mark the three gripping values of each bolt, and hold the pressure for 3s when the hydraulic wrench is at 300N·m, and hold the pressure at 600N·m 3s, 1000N m holding pressure for 10s. By observing whether the pressure holding time of the hydraulic wrench at 1000N m is more than 10s, it is necessary to monitor whether the workers tighten the bolts in place, so as to standardize the workers' operation procedures.

5) The control host saves the monitored bolt stress curve, pressure holding time and data on tightening bolts locally or uploads them to the cloud through the network, and displays them through the background monitoring platform. Through real-time monitoring of bolt torque value, tightening quantity, pressure holding time and other parameters to assist in judging the status of maintenance or operation and maintenance teams, each monitoring parameter supports upper and lower limit alarms, assisting operation and maintenance personnel to find problems in the bolt tightening process in time , which can guide the maintenance department to deal with and prevent potential safety hazards in a timely manner and prevent them from happening in the first place.

At the same time, a GPS positioning module is set on each control host, and the background monitoring platform displays the location of each control host in real time.

The hydraulic wrench in the present invention adopts a hydraulic wrench with a digital display assembly produced by our company, the patent number is CN201920801471.0, and a communication module is added to the hydraulic wrench and the control host to realize wireless communication between the hydraulic wrench and the control host. data transmission.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, several improvements can be made without departing from the principles of the present invention, and these improvements should also be regarded as the invention. protected range.

Claims (6)

1. A torque detection Internet of things cloud service method is characterized by comprising the following steps: the method comprises the following steps:

1) numbering the hydraulic wrenches, and inputting the numbering information of each hydraulic wrench and the working torque information corresponding to each hydraulic wrench into the control host;

2) classifying and numbering bolts with different tightening torque values in a construction site, inputting the number information of the bolts and the number of all the bolts with the same tightening torque value under the same number into a control host, and correspondingly matching the numbers of all the bolts with the same tightening torque value with the number of an adaptive hydraulic wrench according to the working torque information of the hydraulic wrench input into the control host;

3) setting three gradually increased grabbing values for the hydraulic wrench with the corresponding number according to the matched tightening torque value of the bolt, setting pressure maintaining time after each grabbing value, and finishing bolt fastening after the hydraulic wrench tightens the bolt and reaches the pressure maintaining time of the maximum grabbing value;

4) when each numbered hydraulic wrench screws all the bolts corresponding to the number, the hydraulic wrench rotates all the bolts one by one for three times, the bolts are rotated one by one for the first time to the first grabbing value set by the hydraulic wrench and complete pressure maintaining, the bolts after the first pressure maintaining are rotated one by one for the second time to the second grabbing value set by the hydraulic wrench and complete pressure maintaining, and the bolts after the second pressure maintaining are fastened one by one for the third time; after each numbered hydraulic wrench finishes fastening one bolt, the control host records the number of the numbered hydraulic wrenches finishing the bolt fastening, and displays the number of the finished bolt fastening on the control host;

in the process of screwing the bolts by using the hydraulic wrench, the hydraulic wrench displays the output torque of screwing each bolt in real time, transmits the torque output by screwing each bolt to the control host, generates a serial corresponding stress curve graph of hydraulic screwing according to the received output torque, and marks three grabbing values of screwing each bolt and the pressure maintaining time after the three grabbing values on the stress curve graph;

5) the control host computer saves or uploads the monitored bolt stress curve, the pressure maintaining time and the data of the fastening bolt to the cloud end, and the data are displayed through the background monitoring platform.

2. The torque detection internet of things cloud service method of claim 1, wherein: the working torque information of the hydraulic wrench is the maximum torque of the hydraulic wrench.

3. The torque detection internet of things cloud service method of claim 1, wherein: the hydraulic wrench adopts a hydraulic wrench with a torque display.

4. The torque detection internet of things cloud service method of claim 1, wherein: setting three grabbing values of the hydraulic wrench as 30%, 60% and 100% of the tightening torque value of the corresponding matched bolt, setting the pressure holding time after the grabbing value is 30% of the tightening torque value of the corresponding bolt as 3s, setting the pressure holding time after the grabbing value is 60% of the tightening torque value of the corresponding bolt as 3s, setting the grabbing value as the tightening torque value of the corresponding bolt, and setting the pressure holding time after 100% as at least 10 s.

5. The torque detection internet of things cloud service method of claim 1, wherein: a GPS positioning module is arranged on the control host, and the background monitoring platform displays the position of the control host in real time.

6. The utility model provides a moment of torsion detects thing networking cloud service system which characterized in that: including control host computer (2), monitor platform (3) and hydraulic wrench (1) and the wireless communication module that has torsion demonstration, carry out data transmission between hydraulic wrench (1) through wireless communication module and control host computer (2), control host computer (2) through wireless communication module and with monitor platform (3) between carry out data transmission, control host computer (2) record the quantity of the bolt of screwing of hydraulic wrench (1), and the atress curve graph of the bolt that generates every screws.

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