CN204008170U - A kind of for anchor rod anchored testing table - Google Patents
A kind of for anchor rod anchored testing table Download PDFInfo
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- CN204008170U CN204008170U CN201420357705.4U CN201420357705U CN204008170U CN 204008170 U CN204008170 U CN 204008170U CN 201420357705 U CN201420357705 U CN 201420357705U CN 204008170 U CN204008170 U CN 204008170U
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Abstract
The utility model relates to mine support technical field, has been specifically related to a kind of for anchor rod anchored testing table.This testing table comprises the anchor pole for mine support, also comprise propulsion plant, stirring apparatus, installation and measuring platform, coal and rock physical model, dynamic torque speed probe, propulsion plant is used for driving stirring apparatus along installation and measuring platform traveling priority, and stirring apparatus drives anchor pole to rotate around its axis, make anchor rod anchored in the boring of coal and rock physical model, by dynamic torque speed probe, detect the propelling power of anchor pole, fltting speed, stir moment of torsion and speed of agitator, and its detection information is sent to computer control and data acquisition system (DAS), by computing machine, carry out data processing and control, in laboratory, realize the propelling resistance of anchor rod anchored process and the detection of stirring resistance, to optimizing anchor structure, in-depth Anchor Agent performance study, assurance construction quality is significant.
Description
Technical field
The utility model relates to mine support technical field, relates in particular to a kind of for anchor rod anchored testing table.
Background technology
At present, bolt supporting has become coal mine roadway main support pattern safely and efficiently, in China's coal-mine tunnel, obtains large scale application.Bolt supporting be by anchor rod anchored in coal and rock, tighten bar tail nut, country rock is applied to prestress, the distortion absciss layer of constraint roadway surrounding rock, broken swollen and the slippage changing of the relative positions.
The anchoring quality of work progress anchor pole is one of principal element affecting Effects of Supporting.Use the construction materials such as qualified anchor pole, Anchor Agent, under normal construction technology condition, the complexity that the contour structures of anchor pole and size, Anchor Agent stir, bore diameter etc. directly affect the anchoring quality of anchor pole.The anchoring effect of research anchor pole is the important step that improves bolt supporting quality.
The anchoring of anchor pole is in work progress, at roadway surrounding rock anchor pole decorating position drilling and pack Anchor Agent into, anchor pole limit is pushed to boring limit Stirring Anchor Agent, and Anchor Agent solidifies after stirring, and anchor pole is bonded in to the process in boring.Anchor rod anchored process propelling resistance and stir the size of moment of torsion, has determined the complexity of anchor rod anchored construction, and the fltting speed of anchor pole and rotational speed, determined the degree of uniformity that Anchor Agent stirs, and then affect the settable cementitious effect of Anchor Agent.And the degree of uniformity that the size of bore diameter stirs the propelling resistance of anchor pole and Anchor Agent all will have a direct impact, bore diameter increases, and propelling resistance reduces, but bore diameter is while surpassing certain limit, will cause Anchor Agent to stir inhomogeneous, anchoring quality reduction.
At present, the detection method for anchor rod anchored process mainly contains two large classes: underground trials and laboratory examination.
Underground trials, mainly by detecting instruments such as anchor rod drawing meter, steel tapes, detects anchor force and the protruded length of anchor pole, evaluates the anchoring effect of anchor pole, and the data that underground trials obtains are field measurement data, can truly reflect the anchoring situation of down-hole anchor pole.But, the shortcoming of underground trials is: due to the anchor rod anchored each side factors such as anchor pole profile, Anchor Agent performance, bore diameter and constructing operation that relate to, test macro is very complicated, in addition the special environment in down-hole, the monitoring method that some are advanced and the application of instrument are also restricted, the instrument and equipment that also there is no to be directly used in down-hole, carries out anchor rod anchored procedure parameter test.The content of Site Detection, can only reflect anchor rod anchored result afterwards.And, be to guarantee roadway surrounding rock structural intergrity, anchor rod anchored in wall rock drill-hole after, can not retrieve, also cannot check Anchor Agent stirring state and actual solid state.
For anchor rod anchored laboratory examination, existing use steel pipe replaces coal and rock boring at present, manually promotes the test method of rig test anchor pole rotating speed and stirring moment of torsion, and the data of test can reflect the complexity that Anchor Agent stirs.But, can only carry out some projects test, and test result is affected by human factors greatly, test condition and test event are not enough, the installation parameters such as fltting speed and propelling resistance can not be reflected comprehensively, the requirement of the parameters such as systematic analysis anchor pole profile, Anchor Agent performance and supporting bore diameter on anchoring effect impact can not be met.And, the control technology of laboratory examination and data acquisition, still in manual operation, numeral, show and the technical merit of manually making a copy of, controlling test condition repeatability is poor, data acquiring frequency is low, easy obliterated data, use steel pipe to substitute wall rock drill-hole completely, test condition difference is large, and is difficult to observe the curing situation of stirring of Anchor Agent in steel pipe.
Therefore,, for above deficiency, needs are a kind of can be at the testing table of the anchor rod anchored work progress of experiment lab simulation.
Utility model content
(1) technical matters that will solve
The technical problems to be solved in the utility model has been to provide a kind of for anchor rod anchored testing table, makes it possible at the anchor rod anchored work progress of experiment lab simulation, and controls and detect construction parameter, can stir solidification effect to Anchor Agent and dissect observation.
(2) technical scheme
In order to solve the problems of the technologies described above, it is a kind of for anchor rod anchored testing table that the utility model provides, this testing table comprises the anchor pole for mine support, this testing table also comprises propulsion plant, stirring apparatus, installation and measuring platform, coal and rock physical model and dynamic torque speed probe, described propulsion plant is used for driving stirring apparatus along installation and measuring platform traveling priority, and described stirring apparatus drives described anchor pole to rotate around its axis, make anchor rod anchored in the boring of coal and rock physical model, described dynamic torque speed probe is installed on respectively on propulsion plant and stirring apparatus, by described dynamic torque speed probe, detect the propelling power of anchor pole, fltting speed, stir moment of torsion and speed of agitator, and by detection communication to computer control and data acquisition system (DAS) to carry out data processing and control.
Wherein, described propulsion plant comprises driving mechanism and ball-screw, described driving mechanism is fixed on the end of described installation and measuring platform, described ball-screw is fixedly connected with the output shaft of driving mechanism, the feed screw nut of described ball-screw is fixedly connected on stirring apparatus, and described dynamic torque speed probe is installed on the output shaft of driving mechanism.
Wherein, described stirring apparatus comprises driving mechanism and advances flatcar, described propelling flatcar is fixedly connected with feed screw nut, and by advancing flatcar bottom surface slide block along installation and measuring countertop slide rail linear slide, advance on flatcar and be installed with described driving mechanism, the output shaft of described driving mechanism is connected with anchor pole, and described dynamic torque speed probe is installed on the output shaft of driving mechanism.
Wherein, described driving mechanism is controlled the moment of torsion of its output shaft and rotating speed or moment of torsion and rotating speed by its output shaft of variable-frequency motor variable frequency regulating speed control by fluid motor-driven or by servomotor pulse, is controlled moment of torsion and the rotating speed of its output shaft.
Wherein, on described installation and measuring platform, bearing seat is installed, described ball-screw is arranged on described bearing seat.
Wherein, described installation and measuring platform bottom is provided with base, and described base is provided with slide rail, and described installation and measuring platform slides along described slide rail.
Wherein, in described coal and rock physical model boring, be provided with the Anchor Agent for the fixing anchor bar that bonds.
(3) beneficial effect
Technique scheme of the present utility model has following beneficial effect: the utility model is used for driving stirring apparatus along installation and measuring platform traveling priority for the propulsion plant of anchor rod anchored testing table; Stirring apparatus is when traveling priority and drive anchor pole to rotate around its axis, makes, in the anchor rod anchored boring that is installed on coal and rock physical model, to realize the anchoring process at experiment lab simulation anchor bolt construction; By dynamic torque speed probe, detect propelling power, fltting speed, stirring moment of torsion and the speed of agitator of anchor pole, and its detection information is sent to computer control and data acquisition system (DAS), by computing machine, carry out data processing and control.According to anchor pole propulsive torque, can be calculated the propelling power of anchor pole; According to anchor pole, advance rotating speed to calculate the fltting speed of anchor pole.By this for anchor rod anchored testing table, can realize in laboratory anchor rod anchored propelling resistance and the detection of stirring resistance, also can be after anchor rod anchored, take out and open coal and rock physical model, check under every kind of bore diameter condition, the anchor pole of different contour structures, while adopting different fltting speeds and rotating speed to carry out anchoring, the mixing effect of Anchor Agent, systematic analysis anchor pole contour structures, bore diameter, anchor pole fltting speed, the impact on mixing effect such as anchor pole rotational speed, for bore diameter, the engineering parameters such as anchor pole contour structure size and Anchor Agent performance and optimization of material provide foundation, to improving bolt supporting reliability, assurance engineering safety is significant.
Accompanying drawing explanation
Fig. 1 is that the utility model embodiment is for the cut-open view of anchor rod anchored testing table.
Wherein, 1: installation and measuring platform; 5: anchor pole; 11: base; 31: propulsion plant; 32: stirring apparatus; 93: coal and rock physical model; 101: dynamic torque speed probe; 311: driving mechanism; 312: ball-screw; 322: advance flatcar.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but can not be used for limiting scope of the present utility model.
In description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more; Except as otherwise noted, the implication of " nick shaped " is the shape except cross section is concordant.Term " on ", orientation or the position relationship of the indication such as D score, " left side ", " right side ", " interior ", " outward ", " front end ", " rear end ", " head ", " afterbody " be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific orientation, construct and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. are only for describing object, and can not be interpreted as indication or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
As shown in Figure 1, the present embodiment provide for anchor rod anchored testing table, comprise the anchor pole 5 for mine support, also comprise propulsion plant 31, stirring apparatus 32, installation and measuring platform 1, coal and rock physical model 93, dynamic torque speed probe 101.Propulsion plant 31 is for driving stirring apparatus 32 along installation and measuring platform 1 traveling priority, and stirring apparatus 32 drives anchor pole 5 to rotate around its axis.One end of anchor pole 5 is installed on stirring apparatus 32, and the other end of anchor pole 5 enters in the boring of coal and rock physical model 93 vertically; In boring, add Anchor Agent, make anchor pole 5 around its axis rotation under stirring apparatus 32 drives, the anchor pole 5 of rotation stirs Anchor Agent, and anchor pole 5 is anchored in the boring of coal and rock physical model 93.Dynamic torque speed probe 101 is installed on respectively on propulsion plant 31 and stirring apparatus 32, by dynamic torque speed probe 101, detect propelling power, fltting speed, stirring moment of torsion and the speed of agitator of anchor pole 5, and its detection information is sent to computer control and data acquisition system (DAS), by computing machine, carry out data processing and control.The anchoring construction process of lab simulation anchor pole 5 is being tested in realization, and can detect accurately and effectively the technological parameter relation of anchor pole 5 anchoring processes.
Preferably, in order to realize this stirring, advance testing agency's robotization to control, propulsion plant 31 comprises driving mechanism 311 and ball-screw 312.Driving mechanism 311 is fixed on the end of installation and measuring platform 1, ball-screw 312 is fixedly connected with the output shaft of driving mechanism 311, the feed screw nut of ball-screw 312 is fixedly connected on stirring apparatus 32, meanwhile, the output shaft of the driving mechanism 311 of propulsion plant 31 will be installed on for testing the dynamic torque speed probe 101 of moment of torsion and rotating speed.
Preferably, stir the process of Anchor Agent in order to simulate anchor pole 5, stirring apparatus 32 comprises driving mechanism 311 and advances flatcar 322.Advance flatcar 322 to be fixedly connected with the feed screw nut of ball-screw 312.The feed screw nut of ball-screw 312 is fixedly connected on and advances on flatcar 322; When rotating, the output shaft of driving mechanism 311 can drive ball-screw 312 synchronous rotaries; Meanwhile, ball-screw 312 drives feed screw nut rectilinear motion, and feed screw nut is fixedly connected with advancing flatcar 322, and advances flatcar 322 bottom surfaces that slide block is installed, and under feed screw nut drives, advances flatcar 322 along the end face slide rail traveling priority of installation and measuring platform 1.Advance on flatcar 322 and be installed with driving mechanism 311, the output shaft of driving mechanism 311 is fixedly connected with anchor pole 5, drives anchor pole 5 around its axis rotation when the output shaft of driving mechanism 311 rotates, and completes the Anchor Agent process that stirs; Meanwhile, the dynamic torque speed probe 101 for detection of moment of torsion and rotating speed is installed on the output shaft of driving mechanism 311 of stirring apparatus 32.
Driving mechanism 311 can be controlled the moment of torsion of its output shaft and rotating speed or moment of torsion and rotating speed by its output shaft of variable-frequency motor variable frequency regulating speed control or by servomotor pulse, be controlled moment of torsion and the rotating speed of its output shaft by fluid motor-driven.
Oil motor is a kind of executive component of hydraulic system, and the fluid pressure that it provides hydraulic pump can change the torque and rotational speed of its output shaft into.By pressure control torque, its output torque is relevant with the pressure differential between oil motor oil inlet and outlet; By flow control rotating speed, its rotating speed is decided by the uninterrupted of input hydraulic pressure motor; Have advantages of that response frequency is high, be not afraid of stall.
Driving mechanism 311 also can adopt variable-frequency motor, variable-frequency motor adopts the AC speed regulating of " special-purpose variable frequency induction motor+frequency converter ", need to adopt inverter supply, by electromagnetic induction, control stator and rotor, the moment of torsion and the rotating speed that adopt its output shaft of variable frequency regulating speed control, can adapt to the busy shift under different working conditions.
Driving mechanism 311 can also adopt servomotor pulse to control moment of torsion and the rotating speed of its output shaft.Servomotor can be converted into voltage signal torque and rotational speed to drive control object.Servo motor rotor rotating speed is controlled by input signal, and energy rapid reaction, in automatic control system, as executive component, and there is the characteristics such as electromechanical time constant is little, the linearity is high, pickup voltage, received electric signal can be converted to angular displacement or angular velocity output on motor reel.
Preferably, dynamic torque speed probe 101 comprises speed probe and torque sensor, uses speed probe to detect the rotating speed of driving mechanism 311 output shafts; Use torque sensor to detect the moment of torsion of driving mechanism 311 output shafts.Those skilled in the art can and advance flatcar friction force to calculate the propelling power of rockbolt installation process according to output torque, ball-screw diameter, ball screw spiral lift angle, ball-screw friction force; According to output speed and ball screw spiral lift angle, calculate the fltting speed of rockbolt installation process.
Preferably, on installation and measuring platform 1, bearing seat is installed, ball-screw 312 is arranged on bearing seat, and ball-screw 312 can rotate in bearing seat, has reduced the vibration of installation and measuring platform 1; In addition, in installation and measuring platform 1 bottom, base 11 is installed, base 11 is provided with slide rail, and installation and measuring platform 1 can slide along slide rail under the drive of oil cylinder, the convenient position that changes installation and measuring platform 1.
Preferably, in order to simulate the anchoring process of anchor pole 5 under coal mine, realize the mounting process parameter that detects accurately and efficiently anchor pole 5 in laboratory, in 93 borings of coal and rock physical model, be provided with the Anchor Agent of fixing anchor bar 5.Coal and rock physical model 93 is preferably real coal or rock, coal and rock physical model 93 also can be the boring physical model that the Other Engineering material similar to coal or rock made, Anchor Agent is the authentic material adopting in engineering, can be preferably resin anchoring agent, resin anchoring agent is by unsaturated polyester resin, hardening agent, promoter and other auxiliary material, formulated thick material by a certain percentage, use mylar comparting packaging, be cylindric powder stick, there is quick solidifying after stirring at normal temperature, bonding strength is high, the premium properties such as the reliable and good endurance of anchor force, thereby guaranteed that test detects authenticity and the reliability of data.
By this for anchor rod anchored testing table, can realize in laboratory anchor rod anchored technological parameter test, for technological parameters such as systematic study anchor pole contour structures, Anchor Agent performance and rockbolt installation bore diameters, improve bolt supporting reliability, guarantee that engineering safety is significant.
The utility model also provides a kind of basis for the detection method of anchor rod anchored testing table, to comprise the steps:
S1, installation and measuring platform is moved near coal and rock physical model position;
By installation and measuring platform bottom, connect oil cylinder, drive installation and measuring platform to slide near coal and rock physical model position along the slide rail of base; Propulsive mechanism reverse rotation, feed screw nut drives and advances flatcar to pass through bottom surface slide block along the slippage backward of installation and measuring countertop slide rail straight line, is retracted into coal and rock physical model far-end.
S2, in coal and rock physical model boring, add Anchor Agent;
The premium properties such as Anchor Agent is for by anchor pole and the bonding construction material of hole wall country rock, has quick solidifying after stirring at normal temperature, and bonding strength is high, the reliable and good endurance of anchor force.By using Anchor Agent, can realize the actual anchor rod anchored process of simulation.
S3, one end of anchor pole to be measured is installed on stirring apparatus;
One end of anchor pole to be measured is installed on driving mechanism output shaft by speed probe and torque sensor, and anchor pole is over against the aperture of coal and rock physical model boring.Coal and rock physical model is preferably real coal or rock, and coal and rock physical model also can be the boring physical model that the Other Engineering material similar to coal or rock made.
S4, by propulsion plant, anchor pole is installed in coal and rock physical model boring vertically;
The output shaft rotation of driving mechanism, drives ball-screw synchronous rotary; Meanwhile, ball-screw drives feed screw nut rectilinear motion; Feed screw nut is connected with advancing flatcar, and propelling flatcar bottom surface is provided with slide block, make to advance flatcar by slide block along installation and measuring countertop slide rail traveling priority; And then anchor pole is installed in the boring of coal and rock physical model vertically.
S5, by stirring apparatus, anchor pole is rotated around its axis, anchor pole fully stirs Anchor Agent;
The output shaft rotation of driving mechanism, drives anchor pole around its axis rotation, and the anchor pole of rotation fully stirs Anchor Agent, completes the whipping process of Anchor Agent.
S6, by dynamic torque speed probe, detect propelling power, fltting speed, stirring moment of torsion and the speed of agitator of anchor pole, and its detection information is sent to computer control and data acquisition system (DAS), by computing machine, carry out data processing and control.
Wherein, propelling power is calculated gained according to the output torque of propulsion plant driving mechanism, ball-screw diameter, ball screw spiral lift angle, ball-screw friction force and propelling flatcar friction force; Fltting speed calculates gained according to the output speed of propulsion plant driving mechanism and ball screw spiral lift angle.
Wherein, speed of agitator is the output shaft rotating speed of stirring apparatus driving mechanism; Stirring moment of torsion is the moment of torsion of stirring apparatus driving mechanism output shaft.
The coal and rock physical model using is similar to underworkings wall rock condition, after having the coal and rock physical model of anchor pole to take out anchoring, dissect, the matching of aperture and anchor pole, Anchor Agent under can the various wall rock conditions of visual test, and anchor pole fltting speed and the impact of rotational speed on Anchor Agent mixing effect.
In sum, the utility model is used for driving stirring apparatus along installation and measuring platform traveling priority for the propulsion plant of anchor rod anchored testing table; Stirring apparatus is when traveling priority and drive anchor pole to rotate around its axis, makes anchor rod anchoredly in the boring of coal and rock physical model, realizes the anchoring process at experiment lab simulation anchor bolt construction; By dynamic torque speed probe, detect propelling power, fltting speed, stirring moment of torsion and the speed of agitator of anchor pole, and its detection information is sent to computer control and data acquisition system (DAS), by computing machine, carry out data processing and control.According to anchor pole propulsive torque, can be calculated the propelling power of anchor pole; According to anchor pole, advance rotating speed to calculate the fltting speed of anchor pole.By this for anchor rod anchored testing table, can realize in laboratory anchor rod anchored propelling resistance and the detection of stirring resistance, also can be after anchor rod anchored, take out and open coal and rock physical model, check under every kind of bore diameter condition, Anchor Agent mixing effect while adopting different anchor pole fltting speeds and anchor pole rotating speed, systematic analysis bore diameter, anchor pole fltting speed, the impact on mixing effect such as anchor pole rotational speed, for bore diameter, the engineering parameters such as anchor pole contour structure size and Anchor Agent performance and optimization of material provide foundation, to improving bolt supporting reliability, assurance engineering safety is significant.
Embodiment of the present utility model provides for example with for the purpose of describing, and is not exhaustively or by the utility model to be limited to disclosed form.Many modifications and variations are apparent for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present utility model and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment with various modifications that the utility model design is suitable for special-purpose.
Claims (7)
1. one kind for anchor rod anchored testing table, comprise the anchor pole (5) for mine support, it is characterized in that, also comprise propulsion plant (31), stirring apparatus (32), installation and measuring platform (1), coal and rock physical model (93) and dynamic torque speed probe (101), described propulsion plant (31) is for driving stirring apparatus (32) along installation and measuring platform (1) traveling priority, and described stirring apparatus (32) drives described anchor pole (5) to rotate around its axis, anchor pole (5) is anchored in the boring of coal and rock physical model (93), described dynamic torque speed probe (101) is installed on respectively on propulsion plant (31) and stirring apparatus (32), by described dynamic torque speed probe (101), detect the propelling power of anchor pole (5), fltting speed, stir moment of torsion and speed of agitator, and by detection communication to computer control and data acquisition system (DAS) to carry out data processing and control.
2. according to claim 1 for anchor rod anchored testing table, it is characterized in that, described propulsion plant (31) comprises driving mechanism (311) and ball-screw (312), described driving mechanism (311) is fixed on the end of described installation and measuring platform (1), described ball-screw (312) is fixedly connected with the output shaft of driving mechanism (311), it is upper that the feed screw nut of described ball-screw (312) is fixedly connected on stirring apparatus (32), and described dynamic torque speed probe (101) is installed on the output shaft of driving mechanism (311).
3. according to claim 2 for anchor rod anchored testing table, it is characterized in that, described stirring apparatus (32) comprises driving mechanism (311) and advances flatcar (322), described propelling flatcar (322) is fixedly connected with the feed screw nut of ball-screw (312), and by advancing flatcar (322) bottom surface slide block along installation and measuring platform (1) end face slide rail linear slide, advance on flatcar (322) and be installed with described driving mechanism (311), the output shaft of described driving mechanism (311) is connected with anchor pole (5), described dynamic torque speed probe (101) is installed on the output shaft of driving mechanism (311).
According to described in claim 2 or 3 for anchor rod anchored testing table, it is characterized in that, described driving mechanism (311) is controlled the moment of torsion of its output shaft and rotating speed or moment of torsion and rotating speed by its output shaft of variable-frequency motor variable frequency regulating speed control by fluid motor-driven or by servomotor pulse, is controlled moment of torsion and the rotating speed of its output shaft.
5. according to claim 2ly for anchor rod anchored testing table, it is characterized in that, on described installation and measuring platform (1), bearing seat is installed, described ball-screw (312) is arranged on described bearing seat.
6. according to claim 5 for anchor rod anchored testing table, it is characterized in that, described installation and measuring platform (1) bottom is provided with base (11), and described base (11) is provided with slide rail, and described installation and measuring platform (1) slides along described slide rail.
7. according to claim 1ly for anchor rod anchored testing table, it is characterized in that, in described coal and rock physical model (93) boring, be provided with the Anchor Agent for the fixing anchor bar that bonds (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420357705.4U CN204008170U (en) | 2014-06-30 | 2014-06-30 | A kind of for anchor rod anchored testing table |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420357705.4U CN204008170U (en) | 2014-06-30 | 2014-06-30 | A kind of for anchor rod anchored testing table |
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| CN204008170U true CN204008170U (en) | 2014-12-10 |
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| CN201420357705.4U Expired - Fee Related CN204008170U (en) | 2014-06-30 | 2014-06-30 | A kind of for anchor rod anchored testing table |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075904A (en) * | 2014-06-30 | 2014-10-01 | 天地科技股份有限公司 | Test bed for anchoring of anchor rod and detection method |
| CN104849003A (en) * | 2014-12-18 | 2015-08-19 | 淄博矿业集团有限责任公司许厂煤矿 | Electromagnetic excitation device and method for detecting anchoring state of mining anchor rod |
-
2014
- 2014-06-30 CN CN201420357705.4U patent/CN204008170U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075904A (en) * | 2014-06-30 | 2014-10-01 | 天地科技股份有限公司 | Test bed for anchoring of anchor rod and detection method |
| CN104075904B (en) * | 2014-06-30 | 2017-01-25 | 天地科技股份有限公司 | Test bed for anchoring of anchor rod and detection method |
| CN104849003A (en) * | 2014-12-18 | 2015-08-19 | 淄博矿业集团有限责任公司许厂煤矿 | Electromagnetic excitation device and method for detecting anchoring state of mining anchor rod |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150630 |
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| EXPY | Termination of patent right or utility model |