![]() Monitoring sensor for rock bolt failure
专利摘要:
Rock bolt rupture monitoring sensor is used to determine the breaking point of a rock bolt embedded in a rock wall. The device consists of a set of resistors and / or capacitors which are placed on a thin insulator strip at predetermined distances from each other. By using two thin live strips, they are electrically connected to each other as a network with a parallel configuration. The resistor and / or capacitor network is placed inside a groove, which is milled along the rock bolt, in the rock bolt shaft and glued to the rock bolt shaft with an insulating resin. place in the event of a break in the rock bolt shaft and thus also results in the resultant resistance and / or capacitance between the current-carrying strips. Since the resistors and / or capacitors are located at predetermined distances from each other, the resultant resistance and / or capacitance is directly related to the breaking distance (the distance from the threaded end of the rock bolt to the breaking point) of the rock bolt. An electrical circuit is connected to the end of the two thin live strips to measure the resultant resistance and / or capacitance and display the result. Page 1 of 10 公开号:SE1000815A1 申请号:SE1000815 申请日:2010-08-04 公开日:2012-02-05 发明作者:Anura Terance Wicramanayake Andra Baduge 申请人:Anura Terance Wickramanayake Andra Baduge; IPC主号:
专利说明:
(C) Detailed Description of the Design of the Invention The design of the invention is described below by way of example only with reference to the accompanying drawings from Figure 01 to Figure 11. One aspect of the present invention is that the rock bolt is provided with a rupture monitoring sensor device for rock bolts (11) to determine the breaking point (due to overload) of a rock bolt embedded in the rock wall. As shown in Figure 04, the sensor consists of a set of resistors and / or capacitors (6) which are placed on a thin insulator strip (8) at a predetermined distance from each other, and by using two thin live strips (7) the resistors and / or the capacitors are electrically connected to each other as a network with a parallel configuration. This "resistor and / or capacitor network" is placed inside a groove (2) milled along the rock bolt (1) and the "resistor and / or capacitor network" is glued to the rock bolt with an electrically insulating resin. As shown in Figure 04, the ends (9) of the live strips (7) are electrically connected to a wire coupler (10) which is placed near the threaded end (5) (or the roof plate (3) and the nut (4)) of the rock bolt, as shown in Figure 08. As shown in Figure 09, the wire coupler (10) is electrically connected to the amplifier (12) (thus the "resistor and / or capacitor network" is electrically connected to the amplifier); the output power of the amplifier is electrically connected to an A / D converter (13), and the A / D converter is also electrically connected to a microprocessor (14); the microprocessor is also electrically connected to either an LCD monitor (15) or to an infrared / radio frequency transmitter (16) shown in Figure 10. Figure 11 shows a basic block drawing of a handset consisting of an infrared / radio frequency receiver (17) which is electrically connected to a microcontroller (18), and the microcontroller (18) is also electrically connected to an LCD screen (19). (d) Description of the function of the invention The function of the invention will be described below by way of example only with reference to the accompanying drawings from Figure 01 to Figure 11. According to the description of the design of the sensor device for fault monitoring of rock bolts (11) consisting of a set of resistors and / or capacitors (6) which are placed on a thin insulator strip (8) at predetermined distances from each other, and by using two thin electrically conductive strips (7), the resistors and / or capacitors are electrically connected to each other as a network with a parallel configuration. As shown in Figure 08, this "resistor and / or capacitor network" is located inside a milled groove (2) along the rock bolt and these ("resistor and / or capacitor network") are glued to the rock bolt shaft with an insulating resin. As shown in Figure 04, the ends (9) of the thin live strips (7) are electrically connected to the wire coupler (10) located near the threaded end (5) of the rock bolt (Figure 01). As shown in Figure 09, the wire coupler (10) is electrically connected to the amplifier (12), consequently the "resistor and / or capacitor network" is also electrically connected to the amplifier (12). Page 3 of 10 10 15 20 25 30 35 40 Since the "resistor and / or capacitor network" is glued to the rock bolt, if the rock bolt breaks at a certain place, the "resistor and / or capacitor network" is also broken at the same place and consequently it changes Since the resistors and / or capacitors (6) are located at predetermined distances from each other, a change in the resultant resistance and / or capacitance becomes proportional to "the resultant resistance and / or capacitance between the ends (9) of the two current strips (7). distance to the breaking point ”of the rock bolt. The amplifier (12) will provide a voltage signal corresponding to the resultant resistance and / or capacitance of the "resistor and / or capacitor network". The A / D converter (13) converts the analog voltage to a digital signal and inputs it to the microprocessor (14). Using the digital input data from the A / D converter (13), the microprocessor (14) is programmed to calculate the "distance to the breaking point" of the rock bolt and display the result on the LCD screen (15) shown in Figure 09. As shown in Figure 10, an infrared / radio frequency transmitter (16) can be connected to the microprocessor (14) instead of the LCD screen (15) and send information about the "distance to the breaking point" of the rock bolt to a receiver (17) shown in Figure 11. . Figure 11 shows a basic block drawing of a receiver unit consisting of a receiver (17) which is electrically connected to a microprocessor (18) and an LCD screen (19) which is also electrically connected to the microprocessor (18). The receiver (17) will receive the transmitted (infrared / radio frequency) signal from the transmitter (16) and send it to the microprocessor (18). The microprocessor (18) is programmed to display the received information on the LCD screen (19). (e) Description of the drawings Figure 01 shows a profile picture of a rock bolt which has a milled groove (along) one side. Figure 02 is a view of a rock bolt from above that has a milled groove (along) one side. Figure 03 is an isometric view of a rock bolt having a milled groove (drained with) one side. Figure 04 is an isometric view of the set of resistors and / or capacitors connected to each other as a network with a parallel configuration. Figure 05 is a profile view of a rock bolt having a milled groove along its length and the resistor and / or capacitor network fixed within its milled groove. Figure 06 is an isometric view of a rock bolt having a milled groove along its length and resistor. and / or the capacitor network is fixed within its milled groove. Figure 07 is an isometric view of the bottom of the rock bolt having a milled groove along its length and the resistor and / or capacitor network fixed within its milled groove. Figure 08 is an isometric view of a rock bolt having a milled groove along its length and the resistor and / or capacitor network fixed within its milled groove. Figure 09 is a basic block diagram of a processing and reproducing system for use with the rock bolt fracture monitoring device. Figure 10 is a basic block diagram of the processing system capable of transmitting data via infrared / radio frequency for use with the rock bolt failure monitoring device. Page 4 of 10 10 15 20 25 30 Figure 11 is a basic diagram of a display system capable of receiving data via infrared / radio frequency for use with the rock bolt failure monitoring device and with a processing system capable of transmitting data via infrared / radio frequency . Page 5 of 10
权利要求:
Claims (1) [1] 1. 0 15 20 25 PATE NTKRAV A monitoring device for rock bolt fractures for determining the breaking limit of a rock bolt embedded in a rock wall. The device consists of a set of resistors or capacitors which are fixed on an electrical insulator at a predetermined distance from each other. By using two electrical conductors, resistors or capacitors, they are electrically connected to each other in a parallel configuration. All resistors or capacitors, insulators and conductors are located inside a groove that is milled along the rock bolt and fixed to the rock bolt shaft using electrically insulating glue. The resulting resistance or capacitance between the two capacitors is measured to determine any breakage of the rock bolt. A device according to claim 1, wherein the rock bolt shaft itself is used as an electrical conductor, together with another electrical conductor, for electrically connecting the resistors or capacitors to each other in parallel configuration. The device according to claim 1, wherein the electrical conductors are connected to an electronic circuit for displaying and storing data on possible breaks in the rock bolt. The device according to claim 3, wherein the electrical conductors are connected to an electrical circuit which has an amplifier, microprocessor and an LCD screen which can display and store data on any breaks in the rock bolt. The device according to claim 1, wherein the electrical conductors are connected to an electrical circuit having an infrared / radio frequency transmitter which can transmit information to an infrared / radio frequency receiver unit which can display and store data on any breaks in the rock bolt. Page 6 of 10
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同族专利:
公开号 | 公开日 SE536834C2|2014-09-30|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题
法律状态:
2020-04-28| NUG| Patent has lapsed|
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申请号 | 申请日 | 专利标题 SE1000815A|SE536834C2|2010-08-04|2010-08-04|Surveillance sensor for rock bolt failure|SE1000815A| SE536834C2|2010-08-04|2010-08-04|Surveillance sensor for rock bolt failure| 相关专利
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