CN115452225A - Mining anchor cable prestress detection device and method - Google Patents
Mining anchor cable prestress detection device and method Download PDFInfo
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- CN115452225A CN115452225A CN202211117448.2A CN202211117448A CN115452225A CN 115452225 A CN115452225 A CN 115452225A CN 202211117448 A CN202211117448 A CN 202211117448A CN 115452225 A CN115452225 A CN 115452225A
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- 238000001514 detection method Methods 0.000 title claims abstract description 75
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- 238000009434 installation Methods 0.000 claims abstract description 43
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- 238000004804 winding Methods 0.000 claims abstract description 13
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 230000000670 limiting effect Effects 0.000 claims description 21
- 238000006073 displacement reaction Methods 0.000 claims description 6
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- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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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
- E21D21/0093—Accessories
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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Abstract
The invention relates to the technical field of prestressed anchor cable detection, in particular to a mine anchor cable prestress detection device which comprises an installation base, wherein an electric lifting assembly is arranged above the installation base and comprises a jacking cylinder fixedly connected with the installation base, a retractable moving mechanism is arranged at the upper end of the installation base, and a chassis reinforcing mechanism for preventing the device from toppling is arranged inside the installation base. According to the invention, by arranging the chassis reinforcing mechanism, when the telescopic column extends upwards, the winding drum can rotate forwards under the action of the movable screw rod, the connecting rope in a winding state can be released in the rotating process of the winding drum, then the supporting component can extend outwards under the action of the pushing spring, and the periphery of the mounting base can be supported after the supporting component extends outwards, so that the effect of improving the stability of the device in operation to a great extent is achieved, and the tilting in the detection process is prevented.
Description
Technical Field
The invention relates to the technical field of prestressed anchor cable detection, in particular to a device and a method for detecting the prestress of a mine anchor cable.
Background
The anchor cable support system is one of the commonly used mining prestressing force support systems at present, mainly connect and form by the body of rod, tray and ground tackle, wherein the body of rod is formed by free section and exposed section of inner anchor section, the inner anchor section is bonded with rock mass and fixed through anchoring agent, the free section produces the stress deformation while stretching, the exposed section is exposed to the part outside the outer end surface of the ground tackle, it is used for connecting with the jack of stretching-drawing while stretching, the body of rod of the above-mentioned anchor cable support system is the steel strand, the support system adopting the body of rod has advantages of keeping stress large and supporting firmly; in order to guarantee the construction safety of workers in a mining area, people often perform prestress detection on anchor cables in an anchor cable support system regularly, but the mining area is often located on a mountain top or a half-hill waist with unchanged traffic, and the ground surface of mine blasting mining still generates larger vibration, so that the ground surface shakes to generate adverse effects on detection results, sometimes, even side turning of a detection instrument is caused, and therefore very large economic loss is caused.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a mine anchor cable prestress detection device, which solves the technical problem that the prestress detection equipment in the prior art is greatly influenced by the working environment and can often cause large deviation of the detection result, and has the advantages of automatically reinforcing a chassis during working and preventing the chassis from greatly shaking or turning on one side during working.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a mining anchor rope prestressing force detection device, includes the installation base, and the top of installation base is provided with electronic lifting subassembly, and electronic lifting subassembly includes with installation base fixed connection's jacking cylinder, and the inside movable mounting of jacking cylinder has flexible post, the upper end of installation base is equipped with contraction type moving mechanism, and the inside of installation base is equipped with the chassis strengthening mechanism that is used for preventing the device from taking place to empty, and the upper end of flexible post is equipped with the prestressing force detection mechanism who is used for detecting mining anchor rope resistance to compression, and the upper end of flexible post is equipped with the angle adjustment mechanism who is used for adjusting prestressing force detection mechanism position and angle, and the back of flexible post still is equipped with the safety protection mechanism who is used for protecting prestressing force detection mechanism, contraction type moving mechanism is including seting up the inside vertical circular slot at the installation base, and the inside sliding connection of vertical circular slot has the installation slider, and the lower extreme of installation slider is provided with the removal subassembly, and the removal subassembly includes the installation post with installation slider lower extreme fixed connection to and the universal wheel of movable mounting at the installation slider lower extreme, and the upper end fixed mounting of vertical circular cylinder has vertical inflator, and the inside movable mounting has the movable plug, and the retraction spring set up the inside movable mounting support assembly, and set up the reel of the reel, and set up the inside of the reel, set up the reel of the reel, and set up the reel of support subassembly, and set up the reel of the reel, and support subassembly of reel, and the reel, and set up the reel of reel.
Preferably, the outer surface of the installation sliding block is closely attached to the inner wall of the vertical round groove, the outer surface of the movable plug is closely attached to the inner wall of the vertical inflator, the lower end of the support is pushed to be fixedly connected with the movable plug, the upper end of the support is pushed to be fixedly connected with the telescopic column, initially, the distance between the movable plug and the installation sliding block is small, air pressure between the movable plug and the installation sliding block is large, the movable assembly can stretch out of the lower portion of the installation base under the action of air pressure, the movable lead screw is in threaded connection with the furling cylinder, the upper end of the movable lead screw is fixedly connected with the bottom of the telescopic column, one end of the rope is fixedly connected with the furling cylinder, the other end of the rope is fixedly connected with the supporting assembly, when the furling cylinder rotates under the action of the movable lead screw, the supporting assembly can move in the avoidance groove, the supporting assembly comprises a horizontal round rod and a vertical round rod, one end of the horizontal round rod extends to be avoided in the avoidance groove, the other end of the horizontal round rod is fixedly connected with the upper end of the vertical round rod, and a rubber pad is fixedly installed at the lower end of the vertical round rod.
Preferably, the inside of horizontal pole is provided with supplementary supporting mechanism, and supplementary supporting mechanism is provided with the mounting panel including seting up the mounting groove at horizontal pole lower extreme, and mounting groove's inside is provided with the mounting panel, rotates on the mounting panel and is connected with the landing leg, and when horizontal pole was located the inside of dodging the groove, the landing leg was in the horizontality this moment, and when horizontal pole stretched out when dodging the outside in groove, the landing leg can rotate to vertical state.
Preferably, the angle adjusting mechanism comprises vertical plates fixedly mounted at the upper end of the telescopic column, the vertical plates are symmetrically mounted at the upper end of the telescopic column in an equal number manner, horizontal sliding grooves are formed in one opposite sides of the two vertical plates, sliding blocks are slidably connected inside the horizontal sliding grooves, limiting grooves are formed in the lower ends of the horizontal sliding grooves, vertical square grooves are formed in the upper ends of the horizontal sliding grooves, limiting lugs are movably mounted at the lower ends of the sliding blocks, vertical connecting rods are fixedly connected onto the limiting lugs, poking blocks are fixedly mounted at the upper ends of the vertical connecting rods, the vertical square grooves are communicated with the inside of the horizontal sliding grooves, the upper ends of the vertical connecting rods penetrate out of the inside of the vertical square grooves and extend to the upper portions of the vertical plates, the shapes and the sizes of the limiting lugs are matched with those of the limiting grooves, initially, the limiting lugs are inserted into the inside of the limiting grooves, the sliding blocks cannot move freely at the moment, when the poking blocks and the vertical connecting rods synchronously move upwards, the limiting lugs can move out of the limiting grooves, the sliding blocks can move freely at the moment, the sliding blocks can move freely, the limiting grooves are formed in the length direction of the horizontal sliding grooves, and the sliding blocks are further, and the range of the back and forth movement is enlarged.
Preferably, prestressing force detection mechanism includes the stretch-draw jack of movable mounting between two sliding blocks, and stretch-draw jack's bottom is provided with the roating seat, rotates between roating seat and the sliding block to be connected, and stretch-draw jack's surface is provided with displacement sensor, and fixed mounting has force sensor on the roating seat, can make stretch-draw jack synchronous movement when the sliding block removes, can make stretch-draw jack synchronous rotation when the roating seat rotates.
Preferably, safety protection mechanism include with flexible post fixed connection's installation piece, rotate on the installation piece and be connected with the protection casing, be provided with drive gear on the rotation axis of protection casing, the outside fixed mounting of jacking cylinder has vertical rack, vertical rack is located drive gear's below, and the two surface shape phase-match, when flexible post shrink, can make drive gear and vertical rack contact to make the protection casing overturn the top of prestressing force detection mechanism.
The prestress detection method of the mining anchor cable comprises the following steps: at first, support the reinforcement all around to the installation base through chassis strengthening mechanism, prevent that the in-process device that prestressing force detected from taking place to rock or topple over, then through angle adjustment mechanism and electric lifting subassembly to prestressing force detection mechanism's height, horizontal position and every single move angle are adjusted, again through prestressing force detection mechanism carry out reverse stretch-draw test to mining anchor rope, again according to the data analysis and detection that carry out the prestressing force of anchor rope that record, after the detection finishes, safety protection mechanism can provide certain protection to prestressing force detection mechanism, prevent that it is impaired at the in-process that removes or deposit.
By means of the technical scheme, the invention provides a mining anchor cable prestress detection device, which at least has the following beneficial effects:
1. according to the invention, the retractable moving mechanism is arranged, the moving assembly is in a state of being in contact with the ground before working, a detector can freely move the device, and during working, the moving assembly can be automatically retracted into the vertical circular groove under the action of the retractable column, so that the mounting base is in direct contact with the ground, and the device is prevented from shaking in the working process, thereby achieving the effects of facilitating the detector to transfer the device and preventing the detection result from being influenced by shaking in the working process.
2. According to the invention, by arranging the chassis reinforcing mechanism, when the telescopic column extends upwards, the furling drum can rotate forwards under the action of the movable screw rod, the connecting rope in a furling state can be released in the rotating process of the furling drum, then the supporting component can extend outwards under the action of the pushing spring, and the periphery of the mounting base can be supported after the supporting component extends outwards, so that the effect of improving the stability of the device in operation to a great extent is achieved, and the toppling in the detection process is prevented.
3. According to the invention, by arranging the chassis reinforcing mechanism, when the telescopic column contracts downwards, the winding drum can rotate reversely under the action of the movable screw rod, and when the winding drum rotates reversely, the horizontal round rod in the supporting component can be pulled back to the inside of the avoidance groove, so that the effect of reducing the floor area of the device to a certain extent is achieved.
4. According to the invention, through the arrangement of the auxiliary supporting mechanism, when the horizontal round rod continuously moves outwards to enable the mounting groove to completely move to the outside of the avoidance groove, the supporting legs can rotate from the horizontal state to the vertical state under the action of self gravity, so that the effect of automatically supporting the horizontal round rod extending out of the avoidance groove is achieved, the horizontal round rod is prevented from being broken due to the overlong extending length, and the service life of the supporting assembly can be effectively prolonged.
5. The angle adjusting mechanism is arranged, so that the position and the pitching angle of the tensioning jack can be freely adjusted according to actual requirements when the device is used, the device is suitable for various different construction environments, the time consumed by workers in the process of assembling and disassembling equipment can be greatly reduced, and the working efficiency is greatly improved.
6. By arranging the prestress detection mechanism, the mine anchor cable can be conveniently and quickly subjected to reverse tension test, so that the prestress of the mine anchor cable can be detected, workers can be helped to constantly master the working state of the anchor cable supporting system, the construction safety can be ensured to a certain extent, and safety accidents are avoided.
7. According to the invention, by arranging the safety protection mechanism, the protective cover can be automatically turned over to the position above the prestress detection mechanism after use, and can be automatically moved away before detection is started, so that a certain protection effect can be provided for the prestress detection mechanism, and the damage of precise elements in the prestress detection mechanism can be effectively avoided when the device is transferred or stored.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a side view of the overall structure of the present invention;
FIG. 3 is a schematic sectional view of a part of the structure of the present invention;
FIG. 4 is a schematic view of a part of the structure of the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 4 according to the present invention;
FIG. 6 is an internal view of the angle adjustment mechanism of the present invention;
FIG. 7 is an enlarged view of the structure at B in FIG. 6 according to the present invention;
FIG. 8 is a schematic view showing the installation relationship between the partial structures according to the present invention;
fig. 9 is an internal schematic view of the safety shield mechanism of the present invention.
In the figure: 1. installing a base; 2. an electric lifting assembly; 3. a retractable moving mechanism; 4. a chassis reinforcement mechanism; 5. an auxiliary support mechanism; 6. an angle adjusting mechanism; 7. a prestress detection mechanism; 8. a safety protection mechanism; 201. jacking a cylinder; 202. a telescopic column; 301. a vertical circular groove; 302. installing a sliding block; 303. a moving assembly; 304. a vertical air cylinder; 305. a movable plug; 306. pushing the bracket; 401. a circular cavity; 402. a winding drum; 403. a movable screw rod; 404. an avoidance groove; 405. a support assembly; 406. a connecting rope; 407. a push spring; 501. installing a groove; 502. mounting a plate; 503. a support leg; 601. a vertical plate; 602. a horizontal chute; 603. a slider; 604. a limiting groove; 605. a vertical square groove; 606. a limiting bump; 607. a vertical connecting rod; 608. a shifting block; 701. tensioning a jack; 702. a displacement sensor; 703. a tension sensor; 801. mounting blocks; 802. a protective cover; 803. a drive gear; 804. a vertical rack bar.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example one
Referring to fig. 1 and 2, a mining anchor cable prestress detection device, including installation base 1, the top of installation base 1 is provided with electronic lifting subassembly 2, electronic lifting subassembly 2 includes with installation base 1 fixed connection's jacking cylinder 201, the inside movable mounting of jacking cylinder 201 has flexible post 202, the upper end of installation base 1 is equipped with contraction type moving mechanism 3, the inside of installation base 1 is equipped with chassis strengthening mechanism 4 that is used for preventing the device from taking place to empty, the upper end of flexible post 202 is equipped with prestressing force detection mechanism 7 that is used for detecting mining anchor cable compressive property, the upper end of flexible post 202 is equipped with angle adjusting mechanism 6 that is used for adjusting prestressing force detection mechanism 7 position and angle, the back of flexible post 202 still is equipped with safety protection mechanism 8 that is used for protecting prestressing force detection mechanism 7, prestressing force detection mechanism 7 can upwards lift to predetermine the height under the effect of electronic lifting subassembly 2 during the use, ascending in-process chassis strengthening mechanism 4 can stabilize support installation base 1, afterwards, angle adjusting mechanism 6 can finish adjusting the position and the pitching angle of prestressing force detection mechanism 7 and adjust, use back pitching safety protection mechanism 8 can carry out safety protection.
Specifically, the retractable moving mechanism 3 includes a vertical circular groove 301 opened inside the mounting base 1, the inside sliding connection of the vertical circular groove 301 has a mounting slider 302, the outer surface of the mounting slider 302 is tightly attached to the inner wall of the vertical circular groove 301, the lower end of the mounting slider 302 is provided with a moving assembly 303, the moving assembly 303 includes a mounting post fixedly connected to the lower end of the mounting slider 302, and a universal wheel movably mounted at the lower end of the mounting post, the upper end of the vertical circular groove 301 is fixedly mounted with a vertical air cylinder 304, the inside movable mounting of the vertical air cylinder 304 has a movable plug 305, the outer surface of the movable plug 305 is tightly attached to the inner wall of the vertical air cylinder 304, the upper end of the movable plug 305 is fixedly connected to a pushing bracket 306, the lower end of the pushing bracket 306 is fixedly connected to the movable plug 305, the upper end of the pushing bracket 306 is fixedly connected to the telescopic post 202, initially, the distance between the movable plug 305 and the mounting slider 302 is small, the air pressure between the two is large, at this moment, the moving assembly 303 can extend out to the lower part of the mounting base 1 under the action of the air pressure.
The specific implementation process of the implementation is as follows:
as shown in fig. 1, the moving assembly 303 initially extends out of the mounting base 1, so that the detector can move the device freely, and the telescopic column 202 extends upwards under the driving of electric power during operation.
The in-process that flexible post 202 upwards extends can make the synchronous upward movement of promotion support 306, when promoting support 306 upward movement, can make activity stopper 305 synchronous upward movement, can make the inside air pressure of vertical inflator 304 and vertical circular slot 301 diminish after activity stopper 305 upward movement, afterwards, installation slider 302 can be under the action of gravity of installation base 1 upward movement to make removal subassembly 303 shrink the inside of vertical circular slot 301, afterwards, installation base 1 can with ground direct contact.
According to the invention, the retractable moving mechanism 3 is arranged, before work, the moving assembly 303 is in a state of being in contact with the ground, so that a detector can freely move the device, and during work, the moving assembly 303 can be automatically retracted into the vertical circular groove 301 under the action of the telescopic column 202, so that the mounting base 1 is in direct contact with the ground, and the device is prevented from shaking in the work process, thereby achieving the effects of facilitating the detector to transfer the device and preventing the detection result from being influenced by shaking in the work process.
Example two
Referring to fig. 2 to 4, on the basis of the above embodiment, the chassis reinforcing mechanism 4 includes a circular cavity 401 opened inside the mounting base 1, a roll-up drum 402 is movably installed inside the circular cavity 401, a movable lead screw 403 is vertically sleeved inside the roll-up drum 402, the movable lead screw 403 is in threaded connection with the roll-up drum 402, the upper end of the movable lead screw 403 is fixedly connected with the bottom of the telescopic column 202, a dodging groove 404 is opened on the side surface of the mounting base 1, a supporting component 405 is slidably connected inside the dodging groove 404, a connecting rope 406 is arranged between the supporting component 405 and the roll-up drum 402, one end of the connecting rope 406 is fixedly connected with the roll-up drum 402, the other end of the connecting rope 406 is fixedly connected with the supporting component 405, a pushing spring 407 is fixedly connected between the supporting component 405 and the inner wall of the dodging groove 404, and when the roll-up drum 402 rotates under the action of the movable lead screw 403, the supporting component 405 moves inside the dodging groove 404.
Specifically, the supporting component 405 includes horizontal pole and vertical pole, and the one end of horizontal pole extends to the inside of dodging groove 404, the other end of horizontal pole and the upper end fixed connection of vertical pole, and the lower extreme fixed mounting of vertical pole has the rubber pad.
The specific implementation process of this embodiment is as follows:
initially, the horizontal rod inside the support assembly 405 is inside the escape slot 404 under the combined action of the take-up drum 402 and the connecting cord 406.
When flexible post 202 upwards extends, can make the vertical rebound of activity lead screw 403, because threaded connection between activity lead screw 403 and the take-up drum 402, so the in-process of activity lead screw 403 rebound can make the take-up drum 402 rotatory, the pivoted in-process of take-up drum 402 can release the connecting rope 406 that is in the roll-up state, afterwards, supporting component 405 can outwards stretch out under the effect that promotes spring 407, supporting component 405 outwards stretches out the back and can support around installation base 1, thereby greatly increased the device's stability.
After using the completion, flexible post 202 can contract downwards, and the in-process of flexible post 202 shrink downwards can make the vertical downstream of activity lead screw 403, and then makes the roll-up 402 antiport, can pull back the inside of dodging groove 404 with the horizontal round bar among the supporting component 405 during the roll-up 402 antiport to reached and to a certain extent reduced the device's area's effect.
According to the invention, by arranging the chassis reinforcing mechanism 4, when the telescopic column 202 extends upwards, the winding drum 402 can rotate forwards under the action of the movable screw rod 403, the connecting rope 406 in a winding state can be released in the rotating process of the winding drum 402, then the supporting component 405 can extend outwards under the action of the pushing spring 407, and the periphery of the mounting base 1 can be supported after the supporting component 405 extends outwards, so that the effect of improving the stability of the device in operation to a great extent is achieved, and the tilting is prevented in the detection process; in addition, by arranging the chassis reinforcing mechanism 4, when the telescopic column 202 contracts downwards, the winding drum 402 can rotate reversely under the action of the movable screw rod 403, and when the winding drum 402 rotates reversely, the horizontal round rod in the supporting component 405 can be pulled back to the inside of the avoidance groove 404, so that the effect of reducing the floor area of the device to a certain extent is achieved.
EXAMPLE III
Referring to fig. 4 and 5, on the basis of the second embodiment, an auxiliary supporting mechanism 5 is arranged inside the horizontal round bar, the auxiliary supporting mechanism 5 includes a mounting groove 501 formed at the lower end of the horizontal round bar, a mounting plate 502 is arranged inside the mounting groove 501, a leg 503 is rotatably connected to the mounting plate 502, when the horizontal round bar is located inside the avoiding groove 404, the leg 503 is in a horizontal state, and when the horizontal round bar extends out of the avoiding groove 404, the leg 503 rotates to a vertical state.
The specific implementation process of this embodiment is as follows:
when the horizontal rod is located inside the avoidance groove 404, the leg 503 is always in a horizontal state due to the obstruction of the avoidance groove 404, and when the horizontal rod continuously moves outward so that the installation groove 501 completely moves to the outside of the avoidance groove 404, the leg 503 can rotate from the horizontal state to the vertical state under the action of its own gravity.
The supporting legs 503 can provide a certain support for the middle part of the horizontal round bar after rotating to the vertical state, thereby achieving the effect of effectively avoiding the occurrence of fracture due to the overlong extension length of the horizontal round bar.
According to the invention, by arranging the auxiliary supporting mechanism 5, when the horizontal round rod continuously moves outwards so that the mounting groove 501 completely moves to the outside of the avoiding groove 404, the supporting leg 503 can rotate from the horizontal state to the vertical state under the action of self gravity, so that the effect of automatically supporting the horizontal round rod extending out of the avoiding groove 404 is achieved, the horizontal round rod is prevented from being broken due to the overlong extending length, and the service life of the supporting component 405 can be effectively prolonged.
Example four
Referring to fig. 1, 2, and 6-8, on the basis of the above embodiment, the angle adjusting mechanism 6 includes vertical plates 601 fixedly mounted on the upper end of the telescopic column 202, the vertical plates 601 are symmetrically mounted on the upper end of the telescopic column 202 in equal number, one side of the two vertical plates 601 opposite to each other is provided with a horizontal sliding groove 602, the inside of the horizontal sliding groove 602 is slidably connected with a sliding block 603, the lower end of the horizontal sliding groove 602 is provided with a limit groove 604, the upper end of the horizontal sliding groove 602 is provided with a vertical square groove 605, the vertical square groove 605 is communicated with the inside of the horizontal sliding groove 602, the lower end of the sliding block 603 is movably mounted with a limit projection 606, the shape and size of the limit projection 606 are matched with the shape of the limit groove 604, the limit projection 606 is fixedly connected with a vertical connecting rod 607, the upper end of the vertical connecting rod 607 penetrates through the inside of the vertical square groove 605 and extends to the upper side of the vertical plate 601, the upper end of the vertical connecting rod 607 is fixedly mounted with a shift block 608, initially, the limit projection 606 is inserted into the inside of the limit groove 604, at this time, the sliding block 603 cannot freely move, when the shift block 608 and the vertical connecting rod 607 synchronously move upwards, the limit block 606 can move from the inside of the limit groove 605, and the limit slide block 603 can move freely.
Specifically, the limiting groove 604 is provided with a plurality of limiting grooves along the length direction of the horizontal sliding groove 602, so that the range of the sliding block 603 moving back and forth is enlarged.
The specific implementation process of this embodiment is as follows:
as shown in fig. 6, in use, the worker pulls up the toggle block 608, when the toggle block 608 moves upward, the vertical connecting rod 607 moves upward synchronously, when the vertical connecting rod 607 moves upward, the limit protrusion 606 retracts into the inside of the sliding block 603, and then the worker can move the position of the sliding block 603 along the horizontal sliding groove 602 at will, so as to achieve the effect of adjusting the position of the prestress detection mechanism 7 in the horizontal direction.
After the horizontal position adjustment is completed, the dial block 608 and the vertical link 607 will move downward under the action of gravity, and then the limit protrusion 606 will be inserted into the interior of the limit groove 604 again.
In addition, the rotating seat at the bottom of the tensioning jack 701 is rotatably connected with the sliding block 603, so that a worker can adjust the pitching angle of the tensioning jack 701, the device is suitable for various different occasions, and the application range is wider.
According to the invention, by arranging the angle adjusting mechanism 6, the position and the pitching angle of the tensioning jack 701 can be freely adjusted according to actual requirements during use, so that the device is suitable for various different construction environments, the time consumed by workers in the process of assembling and disassembling equipment can be greatly reduced, and the working efficiency is greatly improved.
EXAMPLE five
Referring to fig. 1, 2 and 6, on the basis of the above embodiment, the prestress detecting mechanism 7 includes a tension jack 701 movably installed between two sliding blocks 603, a rotating seat is installed at a bottom end of the tension jack 701, the rotating seat is rotatably connected to the sliding blocks 603, a displacement sensor 702 is installed on an outer surface of the tension jack 701, a tension sensor 703 is fixedly installed on the rotating seat, the tension jack 701 moves synchronously when the sliding blocks 603 move, and the tension jack 701 rotates synchronously when the rotating seat rotates.
The specific implementation process of this embodiment is as follows:
when the prestressed tensioning device is used, a worker inserts the exposed section of the prestressed anchor cable into the tensioning jack 701, and then performs prestressed tensioning detection on the anchor cable through the tensioning jack 701.
In the detection process, the displacement sensor 702 monitors the moving distance of the exposed section of the anchor cable, meanwhile, the tension sensor 703 monitors the tension required in the process, and then, the change curve between the displacement sensor and the tension sensor is fitted through computer software, so that the prestress detection of the mining anchor cable is completed.
By arranging the prestress detection mechanism 7, the mine anchor cable can be conveniently and quickly subjected to reverse tensioning test, so that the prestress of the mine anchor cable can be detected, workers can be helped to constantly master the working state of an anchor cable supporting system, the construction safety can be ensured to a certain extent, and safety accidents are avoided.
EXAMPLE six
Referring to fig. 1, 2 and 9, on the basis of the above embodiment, the safety protection mechanism 8 includes a mounting block 801 fixedly connected to the telescopic column 202, a protection cover 802 is rotatably connected to the mounting block 801, a driving gear 803 is disposed on a rotating shaft of the protection cover 802, a vertical rack 804 is fixedly mounted on the outside of the jacking cylinder 201, the vertical rack 804 is located below the driving gear 803, and the outer surface shapes of the two match, when the telescopic column 202 contracts, the driving gear 803 and the vertical rack 804 can be in contact, so that the protection cover 802 can turn over to the upper side of the prestress detection mechanism 7.
The specific implementation process of this embodiment is as follows:
as shown in fig. 9, when the telescopic column 202 moves downward, the driving gear 803 may contact with the vertical rack 804, and then the driving gear 803 may rotate counterclockwise under the action of the vertical rack 804, and the protective cover 802 may be turned over above the pre-stress detection mechanism 7 during the rotation of the driving gear 803, so as to achieve the effect of providing a certain protection for the pre-stress detection mechanism 7, and effectively prevent the precise elements inside the pre-stress detection mechanism 7 from being damaged when the device is transferred or stored.
When the telescopic column 202 moves upward, the driving gear 803 rotates clockwise under the action of the vertical rack 804, and the driving gear 803 moves the shield 802 away from above the prestress detection mechanism 7 when rotating clockwise.
According to the invention, by arranging the safety protection mechanism 8, the protection cover 802 can be automatically turned over to the position above the prestress detection mechanism 7 after the use is finished, and the protection cover 802 can be automatically moved away before the detection work is started, so that a certain protection effect can be provided for the prestress detection mechanism 7, and the damage to precision elements in the prestress detection mechanism 7 can be effectively avoided when the device is transferred or stored.
The control mode of the invention is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the supply of the power supply also belongs to the common knowledge in the field, and the invention is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a mining anchor rope prestressing force detection device, includes installation base (1), and the top of installation base (1) is provided with electronic lifting subassembly (2), electronic lifting subassembly (2) include with installation base (1) fixed connection's jacking cylinder (201), and movable mounting has flexible post (202), its characterized in that on jacking cylinder (201): the upper end of the mounting base (1) is provided with a retractable moving mechanism (3), a chassis reinforcing mechanism (4) for preventing the device from toppling is arranged inside the mounting base (1), the upper end of the telescopic column (202) is provided with an angle adjusting mechanism (6) and a prestress detection mechanism (7), and the back of the telescopic column (202) is provided with a safety protection mechanism (8) for protecting the prestress detection mechanism (7);
the retractable moving mechanism (3) comprises a vertical circular groove (301) formed in the mounting base (1), a mounting sliding block (302) is connected to the inside of the vertical circular groove (301) in a sliding mode, a moving assembly (303) is arranged at the lower end of the mounting sliding block (302), the moving assembly (303) comprises a mounting column fixedly connected with the lower end of the mounting sliding block (302), and a universal wheel movably mounted at the lower end of the mounting column, a vertical air cylinder (304) is fixedly mounted at the upper end of the vertical circular groove (301), a movable plug (305) is movably mounted in the vertical air cylinder (304), and a pushing support (306) is fixedly connected to the upper end of the movable plug (305);
chassis strengthening mechanism (4) are including seting up at inside circular cavity (401) of installation base (1), the inside movable mounting of circular cavity (401) has a roll-up drum (402), the inside vertical cover of roll-up drum (402) is equipped with movable lead screw (403), the side of installation base (1) has been seted up and has been dodged groove (404), the inside sliding connection who dodges groove (404) has supporting component (405), be provided with between supporting component (405) and roll-up drum (402) and be connected rope (406), fixedly connected with promotes spring (407) between the inner wall of supporting component (405) and dodge groove (404).
2. The mining anchor cable prestress detection device of claim 1, wherein: the outer surface of the mounting sliding block (302) is tightly attached to the inner wall of the vertical circular groove (301), the outer surface of the movable plug (305) is tightly attached to the inner wall of the vertical air cylinder (304), the lower end of the pushing support (306) is fixedly connected with the movable plug (305), and the upper end of the pushing support (306) is fixedly connected with the telescopic column (202).
3. The mining anchor cable prestress detection device of claim 1, wherein: the movable screw rod (403) is in threaded connection with the winding drum (402), the upper end of the movable screw rod (403) is fixedly connected with the bottom of the telescopic column (202), one end of the connecting rope (406) is fixedly connected with the winding drum (402), and the other end of the connecting rope (406) is fixedly connected with the supporting component (405).
4. The mining anchor cable prestress detection device of claim 1, wherein: the supporting component (405) comprises a horizontal round rod and a vertical round rod, one end of the horizontal round rod extends to the inside of the dodging groove (404), the other end of the horizontal round rod is fixedly connected with the upper end of the vertical round rod, and a rubber pad is fixedly mounted at the lower end of the vertical round rod.
5. The mining anchor cable prestress detection device of claim 4, wherein: the horizontal round bar is internally provided with an auxiliary supporting mechanism (5), the auxiliary supporting mechanism (5) comprises a mounting groove (501) formed in the lower end of the horizontal round bar, a mounting plate (502) is arranged in the mounting groove (501), and the mounting plate (502) is rotatably connected with supporting legs (503).
6. The mining anchor cable prestress detection device of claim 1, characterized in that: the angle adjusting mechanism (6) comprises vertical plates (601) fixedly mounted at the upper end of a telescopic column (202), the vertical plates (601) are symmetrically mounted at the upper end of the telescopic column (202) in equal quantity, horizontal sliding grooves (602) are formed in one opposite sides of the two vertical plates (601), sliding blocks (603) are connected inside the horizontal sliding grooves (602) in a sliding mode, limiting grooves (604) are formed in the lower ends of the horizontal sliding grooves (602), vertical square grooves (605) are formed in the upper ends of the horizontal sliding grooves (602), limiting convex blocks (606) are movably mounted at the lower ends of the sliding blocks (603), vertical connecting rods (607) are fixedly connected to the limiting convex blocks (606), shifting blocks (608) are fixedly mounted at the upper ends of the vertical connecting rods (607), the vertical square grooves (605) are communicated with the inside of the horizontal sliding grooves (602), the upper ends of the vertical connecting rods (607) penetrate out of the inside of the vertical square grooves (605) and extend to the upper portions of the vertical plates (601), and the shapes and the sizes of the limiting convex blocks (606) are matched with the shapes and the shapes of the limiting grooves (604).
7. The mining anchor cable prestress detection device of claim 6, wherein: the limiting groove (604) is provided with a plurality of limiting grooves along the length direction of the horizontal sliding groove (602).
8. The mining anchor cable prestress detection device of claim 1, wherein: prestressing force detection mechanism (7) are including movable mounting stretch-draw jack (701) between two sliding blocks (603), and the bottom of stretch-draw jack (701) is provided with the roating seat, rotates between roating seat and sliding block (603) to be connected, and the surface of stretch-draw jack (701) is provided with displacement sensor (702), and fixed mounting has tension sensor (703) on the roating seat.
9. The mining anchor cable prestress detection device of claim 1, characterized in that: safety protection mechanism (8) including with flexible post (202) fixed connection's installation piece (801), rotate on installation piece (801) and be connected with protection casing (802), be provided with drive gear (803) on the rotation axis of protection casing (802), the outside fixed mounting of jacking cylinder (201) has vertical ratch (804), vertical ratch (804) are located the below of drive gear (803), and the outer surface shape phase-match of the two.
10. The mining anchor rope prestress detection device according to any one of claims 1 to 9, wherein: the prestress detection method of the mining anchor cable comprises the following steps:
1. firstly, supporting and reinforcing the periphery of an installation base (1) through a chassis reinforcing mechanism (4) to prevent the device from shaking or toppling in the prestress detection process;
2. then, the height, the horizontal position and the pitching angle of the prestress detection mechanism (7) are adjusted through the angle adjusting mechanism (6) and the electric lifting assembly (2);
3. then, a prestress detection mechanism (7) is used for carrying out reverse tensioning test on the mining anchor cable, and the prestress of the anchor cable is analyzed and detected according to the measured data;
4. after the detection is finished, the safety protection mechanism (8) can provide certain protection for the prestress detection mechanism (7) and prevent the prestress detection mechanism from being damaged in the moving or storing process.
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