CN117605534A - Mechanical monitor for measuring elongation of NPR anchor rod cable constant resistance device - Google Patents
Mechanical monitor for measuring elongation of NPR anchor rod cable constant resistance device Download PDFInfo
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- CN117605534A CN117605534A CN202311052731.6A CN202311052731A CN117605534A CN 117605534 A CN117605534 A CN 117605534A CN 202311052731 A CN202311052731 A CN 202311052731A CN 117605534 A CN117605534 A CN 117605534A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 76
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims description 37
- 238000009434 installation Methods 0.000 claims description 26
- 230000000149 penetrating effect Effects 0.000 claims description 21
- 238000012545 processing Methods 0.000 claims description 15
- 238000004458 analytical method Methods 0.000 claims description 14
- 230000001360 synchronised effect Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 6
- 230000008439 repair process Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 23
- 230000008569 process Effects 0.000 abstract description 21
- 230000008859 change Effects 0.000 abstract description 13
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/02—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection having means for indicating tension
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the field of elongation monitoring of constant resistance devices, in particular to a mechanical monitor for measuring the elongation of an NPR anchor cable constant resistance device, which comprises a constant resistance device shell, wherein a tray for fixed connection is arranged at the top end of the constant resistance device shell, one side of the tray is spirally provided with a mounting nut, a plurality of groups of steel strands are penetrated in the mounting nut, a truncated cone-shaped constant resistance body is slidingly arranged in the constant resistance device shell, and the steel strands penetrate through the constant resistance body and are connected with the constant resistance body into a whole; the lower part of the outer side of the constant resistance device shell is sleeved with a mounting ferrule. According to the invention, in the actual use process, the extension and the extension direction of the constant-resistance body in the constant-resistance device shell are effectively monitored, so that the extension change condition of the constant-resistance body is accurately judged, the maintenance and overhaul processes are convenient, the occurrence of safety accidents is avoided, the displacement changes of the steel stranded wire and the traction end of the constant-resistance body can be monitored, and the safety of the whole equipment in the actual use process is further improved.
Description
Technical Field
The invention relates to the technical field of elongation monitoring of constant resistance devices, in particular to a mechanical monitor for measuring the elongation of an NPR anchor rod cable constant resistance device.
Background
The NPR anchor rod cable constant resistance device mainly comprises an anchor rod, a supporting sleeve, a tension hole, an anchor device and the like. The working principle is that the bearing capacity and stability of the soil body are increased by penetrating the anchor rod through the soil body and applying constant tension at the anchoring equipment.
The NPR anchor rod cable constant resistance device has the advantages of simple construction, good stability, high reliability and the like, and is suitable for different geological conditions. It is widely used in civil engineering and underground engineering in the construction of foundation reinforcement and supporting structures, such as foundation pit support, rock mass anchoring, etc. By using the NPR anchor rod cable constant resistance device, the safety and stability of engineering can be improved, and the service life of the structure can be prolonged.
In the in-process of in-service use, in order to guarantee the safe in utilization condition of whole NPR anchor rod rope, can monitor its elongation, play following effect:
1. and (3) monitoring the state of the anchor rod rope: the working state of the anchor rod rope can be monitored in real time by detecting the elongation of the anchor rod rope. Normally, the elongation of the anchor rod rope should be stable, if the elongation exceeds the expected range, the anchor rod rope may be loosened, loosened or broken, and the like, and measures need to be taken in time for repair or replacement.
2. Support system evaluation: anchor cables are an important component of underground engineering support systems, and stability is critical to the safety and stability of the engineering. By detecting the elongation of the anchor rod cable, the effect of the supporting system and the engineering stability can be evaluated, and the potential problem can be found and solved in time.
3. Design optimization and improvement: through the detection of the elongation of the anchor rod rope, the data under the actual use condition can be collected, and feedback and reference are provided for the design of the anchor rod rope and the support system. These data can be used to optimize design, improve material selection and construction processes, thereby improving the performance and durability of the support system.
However, in the process of actually detecting the elongation of the constant resistance device, a tape measure is mostly adopted for direct measurement, the change of the elongation is time-dependent, the change is not easy to be detected in a short time, and a certain elbow is pulled in the process of actually monitoring in a measuring mode of the tape measure; and because the actual supporting traction position is subjected to external force to be easy to change to a certain extent, displacement is generated, and the safety of the actual equipment in the use process is affected. For this purpose we propose a mechanical monitor for measuring the elongation of the NPR anchor rope constant resistance device.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a mechanical monitor for measuring the elongation of an NPR anchor rod cable constant resistance device.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the mechanical monitor for measuring the elongation of the NPR anchor rod cable constant resistance device comprises a constant resistance device shell, wherein a tray for fixed connection is arranged at the top end of the constant resistance device shell, a mounting nut is arranged on one side of the tray in a rotating way, a plurality of groups of steel strands are penetrated in the mounting nut, a truncated cone-shaped constant resistance body is arranged in the constant resistance device shell in a sliding way, and the steel strands penetrate through the constant resistance body and are connected with the constant resistance body into a whole;
the lower part of the outer side of the constant resistance device shell is sleeved with a mounting ferrule, one side of the mounting ferrule is fixedly provided with a monitoring assembly, the monitoring assembly comprises a mounting rack fixedly mounted on one side of the bottom end of the constant resistance body through a screw, the monitoring assembly further comprises an elongation monitoring mechanism which is matched with the mounting rack to monitor the elongation of the inner constant resistance body and the expansion direction, and the monitoring assembly is further provided with a deflection degree detection assembly which is matched with the elongation monitoring mechanism and the mounting rack to monitor the deflection angle of the constant resistance body;
the equipment also comprises a processing module which is matched with the monitoring component to monitor and early warn the whole monitoring process.
As a preferable technical scheme of the application, the monitoring component comprises a mounting plate fixedly connected with the side surface of a mounting ring, the bottom end of the mounting plate is rotatably provided with a rotating shaft, the bottom end of the rotating shaft is fixedly provided with an L-shaped deflection frame, and an elongation monitoring mechanism is fixedly arranged on one side of a horizontal support arm of the L-shaped deflection frame;
the elongation monitoring mechanism comprises a penetrating shell connected with the L-shaped deflection frame, an elongation detection mechanism matched with the installation rack is arranged on the inner side of the penetrating shell, a dovetail chute is formed in the inner wall of one side of the penetrating shell along the length direction of the installation rack, a dovetail guide bar matched with the dovetail chute on the inner side of the penetrating shell is arranged on the back side of the installation rack, an anti-falling connecting plate is fixedly arranged at the end part of the installation rack, the installation rack is prevented from falling off from the elongation monitoring mechanism in actual use, and stable performance of the whole monitoring process is ensured.
As a preferable technical scheme of the application, the elongation detection mechanism comprises a synchronous shaft rod arranged on the inner side of a penetrating shell, a meshing gear matched with an installation rack is coaxially and fixedly arranged on the outer side of the synchronous shaft rod, and toggle devices along the radial direction of the meshing gear are fixedly arranged on two sides of the meshing gear of the synchronous shaft rod;
the inner wall of one side of the penetrating shell far away from the installation rack is fixedly connected with two groups of fixed arc plates through the fixing rod, the inner side of the fixed arc plates is fixedly provided with a trigger I and a trigger II which are matched with the toggle device, when the meshing gear deflects under the action of the installation rack, the meshing gear drives the synchronous shaft rod to rotate, the toggle device is further enabled to rotate, the trigger I is subjected to touching in the rotating process of the toggle device, the touching sequence of the trigger I and the trigger II and the number of times of integral touching are recorded, the extending direction and the extending amount of the installation rack are effectively known, and the actual extending condition is conveniently and effectively judged.
As a preferred technical scheme of this application, the rack main part material of installation rack is aluminium oxide, and then under the comparatively hard nature of being difficult for crooked of aluminium oxide itself for the installation rack is when following the motion of constant resistance body, and in case the constant resistance body takes place slight deflection, the installation rack also can deflect thereupon, thereby makes the installation rack take place angle modulation under the effect of forked tail guide block and makes elongation monitoring mechanism and L shape deflection frame under the effect of pivot, reduces the error influence that the installation rack produced to the deflection degree testing process of actual constant resistance body.
As a preferred technical scheme of this application, deflection degree subassembly includes two sets of pressure sensor of fixed mounting in the mounting panel below, pressure sensor divides the both sides of locating L shape deflection frame, and one side of pressure sensor all is equipped with the spring of being connected with L shape deflection frame side, after L shape deflection frame receives and takes place to deflect because of the installation rack follows the constant resistance body for elongation monitoring mechanism follow-up produces deflection effort to L shape deflection frame, make the spring receive the extrusion, and then make corresponding pressure sensor detect pressure variation, thereby judge deflection direction and degree of constant resistance body, and then realize the deflection degree monitoring to the constant resistance body.
As a preferred technical scheme of this application, install with trigger I, trigger II and pressure sensor electric connection's signal transceiver the top surface of mounting panel for with trigger I, trigger II and pressure sensor produce the numerical value such as strike change and strike order and pressure change and transmit in actual monitoring use, and transmit to external processing module and handle, make things convenient for the actual judgement to detect and the going on of early warning process.
As a preferable technical scheme of the application, the processing module comprises a processor, a counter, a calculation module, an analysis module, an alarm and a display terminal, wherein the processor receives various data sent from a signal transceiver to classify, records the striking times of a trigger I and a trigger II through the counter, feeds back the striking sequence to the display terminal, and effectively judges the rotation direction of a meshing gear in a monitoring assembly through the displayed striking sequence on the display terminal, so as to judge the extension and retraction directions of an installation rack and a constant-resistance body;
the circumference of the meshing gear is matched with the circumference of the calculation module through the counting obtained by the counter, the elongation of the actual mounting rack and the constant resistance body is effectively calculated, the elongation is analyzed through the analysis module, then the specific data of the elongation is displayed at the display terminal, and when the elongation exceeds the safety index, the analysis module sends a signal to the alarm to give a prompt to staff for prompt and repair;
when the elongation monitoring mechanism deflects under the action of the mounting rack and the constant resistance body, the elongation monitoring mechanism drives the L-shaped deflection frame to deflect at the moment, so that the spring generates pressure to the corresponding pressure sensor, the pressure value is transmitted to the processor at the moment, if the pressure exceeds a safety standard, the deflection angle of the constant resistance body is larger, potential safety hazards exist, an instruction is sent to the alarm, and timely alarm is carried out; if the pressure is in the normal range, the pressure is analyzed by the analysis module and displayed by the display terminal, so that the operator can check and early-warning operation conveniently.
As a preferred technical scheme of this application, the outside of installation lasso wears to be equipped with a plurality of groups and constant resistance ware casing outside threaded connection's mounting screw, and then effectively realizes the holistic dismouting of installation lasso and monitoring module, conveniently overhauls and installs and use.
The beneficial effects of the invention are as follows:
1. through the arrangement of the elongation monitoring mechanism and the mounting rack on the monitoring assembly, the internal meshing gear, the synchronous shaft rod, the trigger I, the toggle and the trigger II are matched with an external processing module to effectively monitor the elongation and the expansion direction of the mounting rack following the constant-resistance body, and can perform timely alarm processing under the action of an alarm;
2. through the setting of installation rack, elongation monitoring mechanism, L shape deflection frame, deflection degree detection mechanism and processing module, effectively monitor the deflection degree of constant resistance body and steel strand wires, guarantee that the traction end of constant resistance body obtains effective monitoring, avoid taking place too big displacement because of the traction end and lead to the production of incident.
Further, this application has effectively realized that the inside constant resistance body's of constant resistance ware casing elongation and flexible direction carry out effective monitoring at in-service use's in-process to accurate judgement constant resistance body's elongation change condition, the going on of being convenient for maintain and overhaul process, avoid the incident to produce, and can monitor the displacement change of steel strand wires and constant resistance body traction end, further improve the security of whole equipment in-service use.
Drawings
FIG. 1 is a schematic structural diagram of a mechanical monitor for measuring the elongation of an NPR anchor rod cable constant resistance device;
FIG. 2 is a schematic cross-sectional structural view of a mechanical monitor for measuring the elongation of an NPR anchor rod cable constant resistance device;
FIG. 3 is a schematic diagram of the monitoring assembly and the mounting ferrule of the mechanical monitor for measuring the elongation of the NPR anchor rod cable constant resistance device;
FIG. 4 is an enlarged schematic view of the position A of the mechanical monitor for measuring the elongation of the NPR anchor rod cable constant resistance device;
FIG. 5 is a schematic view of another view angle structure of a mounting ferrule and a monitoring assembly of the mechanical monitor for measuring the elongation of the NPR anchor rod cable constant resistance device;
FIG. 6 is a schematic diagram of a part of an enlarged structure of a monitoring assembly of the mechanical monitor for measuring the elongation of the NPR anchor rod cable constant resistance device;
FIG. 7 is a schematic diagram of a cross-sectional structure of an elongation monitoring mechanism of a mechanical monitor for measuring the elongation of an NPR anchor rod cable constant resistance device;
fig. 8 is a schematic diagram of a monitoring flow of a mechanical monitor for measuring the elongation of the NPR anchor rod cable constant resistance device.
In the figure: 1. a constant resistance device housing; 2. installing a ferrule; 3. steel strand; 4. a monitoring component; 41. an L-shaped deflection frame; 42. an elongation monitoring mechanism; 421. penetrating the shell; 422. a meshing gear; 423. fixing the arc plate; 424. a synchronizing shaft; 425. a trigger I; 426. a toggle device; 427. a trigger II; 43. installing a rack; 44. a mounting plate; 45. a pressure sensor; 46. a rotating shaft; 47. a spring; 48. a signal transceiver; 5. a tray; 6. installing a nut; 7. a constant resistance body.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-8, a mechanical monitor for measuring elongation of an NPR anchor rope constant resistance device comprises a constant resistance device shell 1, wherein a tray 5 for fixed connection is arranged at the top end of the constant resistance device shell 1, a mounting nut 6 is arranged on one side of the tray 5 in a screwed manner, a plurality of groups of steel strands 3 are penetrated in the mounting nut 6, a truncated cone-shaped constant resistance body 7 is slidingly arranged in the constant resistance device shell 1, and the steel strands 3 penetrate through the constant resistance body 7 and are connected with the constant resistance body 7 into a whole;
the lower part of the outer side of the constant resistance device shell 1 is sleeved with a mounting ferrule 2, and a plurality of groups of mounting screws which are in threaded connection with the outer side of the constant resistance device shell 1 are arranged on the outer side of the mounting ferrule 2 in a penetrating manner, so that the whole dismounting of the mounting ferrule 2 and the monitoring assembly 4 is effectively realized, and the overhaul, the installation and the use are convenient;
a monitoring component 4 is fixedly arranged on one side of the mounting ferrule 2, the monitoring component 4 comprises a mounting rack 43 fixedly arranged on one side of the bottom end of the constant resistance body 7 through a screw, the monitoring component 4 also comprises an elongation monitoring mechanism 42 which is matched with the mounting rack 43 to monitor the elongation of the internal constant resistance body 7 and the expansion direction, and a deflection degree detection component which is matched with the elongation monitoring mechanism 42 and the mounting rack 43 to monitor the deflection angle of the constant resistance body 7 is also arranged on the monitoring component 4;
the equipment also comprises a processing module which is matched with the monitoring component 4 to monitor and early warn the whole monitoring process.
Referring to fig. 3-4, the monitoring assembly 4 comprises a mounting plate 44 fixedly connected with the side surface of the mounting collar 2, a rotating shaft 46 is rotatably arranged at the bottom end of the mounting plate 44, an L-shaped deflection frame 41 is fixedly arranged at the bottom end of the rotating shaft 46, and an elongation monitoring mechanism 42 is fixedly arranged at one side of a horizontal support arm of the L-shaped deflection frame 41;
referring to fig. 6 to 7, the elongation monitoring mechanism 42 includes a penetrating housing 421 connected to the L-shaped deflection frame 41, an elongation detecting mechanism cooperating with the mounting rack 43 is disposed on the inner side of the penetrating housing 421, a dovetail chute is formed on the inner wall of one side of the penetrating housing 421 along the length direction of the mounting rack 43, a dovetail guide bar adapted to the dovetail chute on the inner side of the penetrating housing 421 is mounted on the back side of the mounting rack 43, and an anti-falling connection plate is fixedly mounted at the end of the mounting rack 43, so that the mounting rack 43 is prevented from falling off from the elongation monitoring mechanism 42 during actual use, and stable performance of the overall monitoring process is ensured; the elongation detection mechanism comprises a synchronous shaft rod 424 arranged on the inner side of the penetrating shell 421, a meshing gear 422 matched with the mounting rack 43 is coaxially and fixedly arranged on the outer side of the synchronous shaft rod 424, and a toggle 426 along the radius direction of the synchronous shaft rod 424 is fixedly arranged on two sides of the meshing gear 422;
the inner wall of one side of the penetrating shell 421 far away from the installation rack 43 is fixedly connected with two groups of fixed arc plates 423 through a fixed rod, the inner side of the fixed arc plates 423 is fixedly provided with a trigger I425 and a trigger II 427 which are matched with the toggle 426, when the meshing gear 422 is deflected under the action of the installation rack 43, the meshing gear is enabled to drive the synchronous shaft rod 424 to rotate, the toggle 426 is enabled to rotate, the trigger I425 is impacted in the rotating process of the toggle 426, and the extending direction and the extending amount of the installation rack 43 are effectively known through recording the sequence of the impact of the trigger I425 and the trigger II 427 and the integral impact times, so that the actual extending condition is conveniently and effectively judged.
Referring to fig. 3, the rack main body of the mounting rack 43 is made of alumina, so that when the mounting rack 43 moves along with the constant-resistance body 7, once the constant-resistance body 7 deflects slightly, the mounting rack 43 also deflects along with the constant-resistance body 7, and therefore, the mounting rack 43 enables the elongation monitoring mechanism 42 and the L-shaped deflection frame 41 to perform angle adjustment under the action of the dovetail guide block under the action of the rotating shaft 46, and error influence of the mounting rack 43 on the actual deflection degree detection process of the constant-resistance body 7 is reduced.
Referring to fig. 3-5, the deflection degree assembly includes two groups of pressure sensors 45 fixedly installed below the mounting plate 44, the pressure sensors 45 are separately disposed on two sides of the L-shaped deflection frame 41, and springs 47 connected to the sides of the L-shaped deflection frame 41 are disposed on one sides of the pressure sensors 45, when the L-shaped deflection frame 41 is deflected due to the fact that the mounting rack 43 follows the constant resistor 7, the elongation monitoring mechanism 42 generates deflection force on the L-shaped deflection frame 41 in a follow-up manner, the springs 47 are extruded, and then the corresponding pressure sensors 45 detect pressure changes, so that the deflection direction and degree of the constant resistor 7 are judged, and further the deflection degree of the constant resistor 7 is monitored.
The top surface of the mounting plate 44 is provided with a signal transceiver 48 electrically connected with the trigger I425, the trigger II 427 and the pressure sensor 45, and the signal transceiver is used for transmitting values such as the trigger I425, the trigger II 427 and the pressure sensor 45, such as the strike change, the strike sequence and the pressure change, in the actual monitoring use process, and transmitting the values to an external processing module for processing, so that the actual judgment, detection and early warning process are convenient.
Referring to fig. 3 to 8, the processing module includes a processor, a counter, a calculation module, an analysis module, an alarm and a display terminal, the processor receives various data sent from the signal transceiver 48 to classify, then records the striking times of the trigger i 425 and the trigger ii 427 by the counter, feeds back the striking sequence to the display terminal, and effectively judges the rotation direction of the meshing gear 422 in the monitoring assembly 4 by the striking sequence displayed on the display terminal, thereby judging the extension and retraction directions of the mounting rack 43 and the constant resistor 7;
the circumference of the meshing gear 422 and the counting matching calculation module obtained by the counter effectively calculates the elongation of the actual mounting rack 43 and the constant resistance body 7, analyzes the elongation by the analysis module, displays elongation specific data at the display terminal, and when the elongation exceeds the safety index, the analysis module sends a signal to the alarm to give a prompt to staff for prompt repair;
when the elongation monitoring mechanism 42 deflects under the action of the mounting rack 43 and the constant resistance body 7, the elongation monitoring mechanism 42 drives the L-shaped deflection frame 41 to deflect at the moment, so that the spring 47 generates pressure to the corresponding pressure sensor 45, the pressure value is transmitted to the processor at the moment, if the pressure exceeds a safety standard, the deflection angle of the constant resistance body 7 is larger, potential safety hazards exist, an instruction is sent to the alarm, and timely alarm is carried out; if the pressure is in the normal range, the pressure is analyzed by the analysis module and displayed by the display terminal, so that the operator can check and early-warning operation conveniently.
The working flow is as follows: in the actual monitoring use process, firstly, the mounting ferrule 2 and the monitoring component 4 are fixedly mounted on the outer side of the constant resistor housing 1 through screws, and the end part of the mounting rack 43 is mounted at the lower end of the constant resistor body 7 through screws;
in the process of monitoring, when the constant resistance body 7 is deflected along the inside of the constant resistance device shell 1 under the external action, the constant resistance body 7 drives the mounting rack 43 to move along the belt at the moment, the mounting rack 43 drives the meshing gear 422 meshed with the constant resistance body to rotate in the moving process, when the meshing gear 422 rotates, the coaxial synchronous shaft rod 424 drives the shifter 426 to rotate, the rotating direction of the meshing gear 422 is indirectly influenced according to the moving direction of the mounting rack 43, so that the rotating direction of the shifter 426 is influenced, the shifter 426 further influences the striking sequence of the trigger I425 and the trigger II 427, in the process, the striking sequence and the times of the trigger I425 and the trigger II 427 are sent to an external processing module through the signal transceiver 48, the trigger I425 and the trigger II 427 are used for effectively judging the rotation direction of the meshing gear 422 on the inner side by an external processor through the striking sequence of the trigger I425 and the trigger II 427, so that the extension direction of the mounting rack 43 is effectively known, the displacement direction of the constant resistance body 7 is monitored, the striking times of the trigger I425 and the trigger II 427 are calculated through an internal counter, the rotation number of the meshing gear 422 is further calculated, the circumference of the meshing gear 422 is matched, the displacement of the mounting rack 43 meshed with the meshing gear is effectively known, the extension amount of the mounting rack 43 is further accurately calculated, the extension amount is displayed by being matched with an external display terminal, the exceeding extension amount is alarmed by an analysis module and an alarm, the safety accident is conveniently and timely maintained, and the safety accident is avoided;
when the constant resistance body 7 is subjected to the action of the traction end of the steel strand 3 to generate certain angle deflection, the installation rack 43 drives the elongation monitoring mechanism 42 to integrally deflect at an angle with the L-shaped deflection frame 41, the spring 47 is extruded in the deflection process, the corresponding pressure sensor 45 receives pressure change, at the moment, the pressure change value is conveyed to an external processing module through the signal transceiver 48 and displayed at a display terminal, the analysis module analyzes the pressure change value, if the value exceeds a safety standard, the deflection degree of the constant resistance body 7 is severe, the displacement of the traction end of the steel strand 3 integrated with the constant resistance body 7 is indirectly represented, the constant resistance body 7 generates angle deflection, potential safety hazards exist, and the alarm processing is carried out by means of an alarm, so that the constant resistance body 7 is convenient to maintain and process in time.
Finally, it should be noted that: in the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The mechanical monitor for measuring the elongation of the NPR anchor rod cable constant resistance device comprises a constant resistance device shell (1), wherein a tray (5) for fixed connection is arranged at the top end of the constant resistance device shell (1), one side of the tray (5) is spirally provided with a mounting nut (6), and a plurality of groups of steel strands (3) are penetrated in the mounting nut (6), and the mechanical monitor is characterized in that a truncated cone-shaped constant resistance body (7) is arranged in the constant resistance device shell (1) in a sliding manner, and the steel strands (3) penetrate through the constant resistance body (7) and are connected with the constant resistance body (7) into a whole;
the outer lower part of the constant resistor shell (1) is sleeved with a mounting ferrule (2), one side of the mounting ferrule (2) is fixedly provided with a monitoring assembly (4), the monitoring assembly (4) comprises a mounting rack (43) fixedly arranged on one side of the bottom end of the constant resistor (7) through screws, the monitoring assembly (4) further comprises an elongation monitoring mechanism (42) which is matched with the mounting rack (43) to monitor the elongation of the inner constant resistor (7) and the expansion direction, and the monitoring assembly (4) is further provided with a deflection degree detection assembly which is matched with the elongation monitoring mechanism (42) and the mounting rack (43) to monitor the deflection angle of the constant resistor (7);
the equipment also comprises a processing module which is matched with the monitoring component (4) to monitor and early warn the whole monitoring process.
2. The mechanical monitor for measuring the elongation of the NPR anchor rod cable constant resistance device according to claim 1, wherein the monitoring component (4) comprises a mounting plate (44) fixedly connected with the side surface of the mounting ring (2), a rotating shaft (46) is rotatably arranged at the bottom end of the mounting plate (44), an L-shaped deflection frame (41) is fixedly arranged at the bottom end of the rotating shaft (46), and the elongation monitoring mechanism (42) is fixedly arranged at one side of a horizontal support arm of the L-shaped deflection frame (41);
the elongation monitoring mechanism (42) comprises a penetrating shell (421) connected with the L-shaped deflection frame (41), an elongation detection mechanism matched with the mounting rack (43) is arranged on the inner side of the penetrating shell (421), a dovetail chute is formed in the inner wall of one side of the penetrating shell (421) along the length direction of the mounting rack (43), a dovetail guide bar matched with the dovetail chute on the inner side of the penetrating shell (421) is arranged on the back side of the mounting rack (43), and an anti-falling connecting plate is fixedly arranged at the end part of the mounting rack (43).
3. The mechanical monitor for measuring the elongation of the NPR anchor cable constant resistance device according to claim 2, wherein the elongation detection mechanism comprises a synchronous shaft lever (424) arranged on the inner side of the penetrating shell (421), an engaging gear (422) adapted to the mounting rack (43) is coaxially and fixedly arranged on the outer side of the synchronous shaft lever (424), and toggle devices (426) along the radius direction of the engaging gear are fixedly arranged on two sides of the engaging gear (422) of the synchronous shaft lever (424);
the inner wall of one side of the penetrating shell (421) far away from the mounting rack (43) is fixedly connected with two groups of fixed arc plates (423) through a fixed rod, and the inner side of the fixed arc plates (423) is fixedly provided with a trigger I (425) and a trigger II (427) which are matched with the toggle device (426).
4. A mechanical monitor for measuring elongation of an NPR anchor rope constant resistance device according to claim 3, wherein the rack body of the mounting rack (43) is made of alumina.
5. The mechanical monitor for measuring elongation of an NPR anchor cable constant resistance device according to claim 4, wherein the deflection degree assembly comprises two groups of pressure sensors (45) fixedly installed below the installation plate (44), the pressure sensors (45) are respectively arranged on two sides of the L-shaped deflection frame (41), one side of each pressure sensor (45) is provided with a spring (47) connected with the side face of the L-shaped deflection frame (41), when the L-shaped deflection frame (41) deflects due to the fact that the installation rack (43) follows the constant resistance body (7), the elongation monitoring mechanism (42) generates deflection force on the L-shaped deflection frame (41) in a follow-up mode, the springs (47) are extruded, and accordingly the corresponding pressure sensors (45) detect pressure changes.
6. The mechanical monitor for measuring elongation of an NPR anchor rope constant resistance device of claim 5, wherein a signal transceiver (48) electrically connected to the trigger i (425), the trigger ii (427) and the pressure sensor (45) is mounted on a top surface of the mounting plate (44).
7. The mechanical monitor for measuring the elongation of the NPR anchor cable constant resistance device according to claim 6, wherein the processing module comprises a processor, a counter, a calculation module, an analysis module, an alarm and a display terminal, the processor receives various data sent from the signal transceiver (48) to classify, then the counter is used for recording the striking times of the trigger i (425) and the trigger ii (427), feeding back the striking sequence and feeding back the striking sequence to the display terminal, and the rotation direction of the meshing gear (422) in the monitoring assembly (4) is effectively judged through the striking sequence displayed on the display terminal, so that the telescopic direction of the mounting rack (43) and the constant resistance body (7) is judged;
the circumference of the meshing gear (422) and the counting matching calculation module obtained by the counter effectively calculates the elongation of the actual mounting rack (43) and the constant resistance body (7), analyzes the elongation by the analysis module, displays elongation specific data at the display terminal, and sends a signal to the alarm by the analysis module when the elongation exceeds a safety index, so that staff is reminded to repair the elongation in time;
when the elongation monitoring mechanism (42) deflects under the action of the mounting rack (43) and the constant resistance body (7), the elongation monitoring mechanism (42) drives the L-shaped deflection frame (41) to deflect at the moment, so that the spring (47) generates pressure to the corresponding pressure sensor (45), the pressure value is transmitted to the processor at the moment, if the pressure exceeds a safety standard, the deflection angle of the constant resistance body (7) is larger, potential safety hazards exist, an instruction is sent to the alarm, and timely alarm is carried out; if the pressure is in the normal range, the pressure is analyzed by the analysis module and displayed by the display terminal, so that the operator can check and early-warning operation conveniently.
8. The mechanical monitor for measuring the elongation of the NPR anchor rope constant resistance device according to claim 1, wherein a plurality of groups of mounting screws which are in threaded connection with the outer side of the constant resistance device shell (1) are penetrated on the outer side of the mounting ferrule (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311052731.6A CN117605534A (en) | 2023-08-21 | 2023-08-21 | Mechanical monitor for measuring elongation of NPR anchor rod cable constant resistance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311052731.6A CN117605534A (en) | 2023-08-21 | 2023-08-21 | Mechanical monitor for measuring elongation of NPR anchor rod cable constant resistance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117605534A true CN117605534A (en) | 2024-02-27 |
Family
ID=89956687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311052731.6A Pending CN117605534A (en) | 2023-08-21 | 2023-08-21 | Mechanical monitor for measuring elongation of NPR anchor rod cable constant resistance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117605534A (en) |
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2023
- 2023-08-21 CN CN202311052731.6A patent/CN117605534A/en active Pending
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