CN210401068U - Mechanical property experimental device for reducing actual application scene of grouting anchor cable - Google Patents

Abstract

The utility model discloses a mechanical property experimental device for reducing practical application scenes of grouting anchor cables, which comprises a bottom plate, a steel cylinder component and a drawing instrument component, wherein the steel cylinder component is used for grouting and fixing the anchor cables in a steel cylinder; the drawing instrument assembly is used for carrying out drawing experiments on the anchor cable which is fixed in the steel cylinder through grouting; the bottom plate is fixedly assembled with the top plate through the first side plate and the second side plate respectively, guide rails are further mounted on the end faces, close to each other, of the bottom plate and the top plate, and the guide rails are slidably assembled with the two ends of the movable side plate respectively; a foot control plate and a lead screw supporting plate are also fixed on the bottom plate, and a forward switch and a backward switch are respectively arranged on the foot control plate; the first side plate and the lead screw supporting plate are respectively rotatably assembled with a lead screw, the lead screw is assembled with the movable side plate in a threaded screwing manner, and the lead screw is connected with an output shaft of the side shifting motor; the second side plate is provided with a clamping seat mechanism, a heating support bottom plate and a heating support top plate; the clamping seat mechanism is used for fixing the steel cylinder of the steel cylinder assembly.

Description

Mechanical property experimental device for reducing actual application scene of grouting anchor cable

Technical Field

The utility model relates to an experimental facilities especially relates to a mechanical properties experimental apparatus for reducing slip casting anchor rope practical application scene.

Background

Resource conditions of rich coal, little gas and lack of oil determine that the energy structure of China mainly uses coal. Although new energy resources in China are rapidly developed in recent years, due to the long-term energy structure and the increasing consumption of people in China, coal in China still accounts for over 60 percent of the total energy and cannot be changed for a long time. In order to meet the increasing energy demand, the coal mining task of China in a long time in the future is very arduous, and after long-term large-scale development, coal resources with superior mining conditions are nearly exhausted, so that the way for improving the yield lies in mining the coal resources with poor occurrence conditions and deep burial, which means that the mining work in the future is carried out in the environment with high ground stress and poor surrounding rock conditions. With the increase of the mining depth and the deterioration of the mining conditions in the future, the stability of a roadway is difficult to maintain by a conventional supporting mode, the problem of deep soft rock is more prominent, and the safety production of a coal mine is influenced to a great extent.

Meanwhile, the normal production of coal mines is seriously influenced by high ground pressure, high ground temperature, high karst water pressure and strong mining disturbance caused by deep mining, deep mines are increasingly seriously threatened by confined water, the water inrush type becomes more complex, and the water damage problem is more prominent. The vertical stress of a deep mine is obviously increased, and the structural stress field is complex; the mining depth is increased, so that the ground temperature is higher, and meanwhile, the ground stress change can be caused by expansion and contraction and temperature change; the ground stress and the ground temperature rise simultaneously, the karst water pressure rises, and the water inrush of the mine is serious. In addition, under the action of high ground stress, the mining disturbance influence is strong, and the surrounding rock is seriously damaged.

Under high ground stress and complex environment, the deformation characteristics of the coal rock mass are fundamentally changed: plastic transformation from the brittleness of the shallow part to the deep part; the coal rock mass has stronger time effect and shows obvious rheology or creep deformation; the expansion phenomenon of the coal rock mass is prominent, and is characterized in that the coal rock mass has internal joints, cracks and cracks under large bias stress, and the volume of the coal rock mass is increased and the expansion is expanded due to the new cracks; the impact of coal-rock mass deformation is characterized in that the deformation is not continuous and gradually changed, but suddenly and sharply increased.

At present, high-strength anchor rods and anchor cables are mainly adopted for supporting, the supporting effect is good under general conditions, and the comprehensive benefit is obvious. However, in high ground pressure crushing roadways, a series of problems occur: the anchor rod has over-low prestress, insufficient strength and poor impact resistance, so that the anchor rod is broken or fails integrally, even the tail of the anchor rod is ejected out and the like; the anchor cable has small diameter, low strength, low elongation and poor matching with the drilled hole, and the anchor cable is frequently broken or integrally slides; the steel belt has low strength and rigidity, is easy to tear and break and has poor top protection effect; particularly, when crack water exists on the top plate of the roadway and is communicated by the anchor cable holes, the water spraying is serious. The tunnel roof surrounding rock strength and the anchor rod (cable) anchoring force are greatly reduced under the action of water, and the tunnel supporting effect and the safety degree are seriously influenced by the phenomena.

Different geological conditions have different supporting requirements, and the same supporting mode has different supporting strength under different geological conditions, so that anchor cable supporting is necessary according to the actual underground condition. The grout injected in the grouting anchor cable support and the mechanical properties of the anchor cable are very important design parameters, and the specification of the anchor cable, the formula of the grouting grout, the construction process and the like are generally determined according to the underground practical situation. However, at present, no mechanical property experimental device specially used for reducing the actual application scene of the grouting anchor cable exists, so that great inconvenience is brought to actual research and design.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defect of prior art, the utility model aims to solve the technical problem that a mechanical properties experimental apparatus for reducing slip casting anchor rope practical application scene is provided, its service environment that can reduce the anchor rope to carry out mechanics research to the anchor rope, thereby support design, research for the later stage and provide basic data.

In order to achieve the purpose, the utility model provides a mechanical property experimental device for reducing practical application scenes of grouting anchor cables, which comprises a bottom plate, a steel cylinder component and a drawing instrument component, wherein the steel cylinder component is used for grouting and fixing the anchor cables in a steel cylinder; the drawing instrument assembly is used for carrying out drawing experiments on the anchor cable which is fixed in the steel cylinder through grouting;

the bottom plate is fixedly assembled with the top plate through the first side plate and the second side plate respectively, guide rails are further mounted on the end faces, close to each other, of the bottom plate and the top plate, and the guide rails are slidably assembled with the two ends of the movable side plate respectively; a foot control plate and a lead screw supporting plate are further fixed on the bottom plate, and a forward switch and a backward switch are respectively mounted on the foot control plate;

the first side plate and the lead screw supporting plate are respectively rotatably assembled with a lead screw, the lead screw penetrates through the movable side plate and is assembled with the movable side plate in a threaded screwing mode, and one end of the lead screw penetrates through the first side plate and is connected with an output shaft of the side shifting motor through a coupler; the second side plate is provided with a clamping seat mechanism, a heating support bottom plate and a heating support top plate; the clamping seat mechanism is used for fixing the steel cylinder of the steel cylinder assembly and can apply torsion and impact force to the inner cavity of the steel cylinder assembly.

The utility model has the advantages that:

1. the utility model discloses can restore the scene in the pit that the anchor rope was used to for process, design, the research of anchor rope support in the pit provide basic research support.

2. The utility model discloses the interactive process of accessible research anchor rope and slip casting country rock mass, the stress of anchor rope under the different load action forms of analysis, different country rock water content situation, deformation law and anchor rope structural parameter are to improving the effect of supporting construction stability and bearing capacity, obtain best anchor rope support parameter and slip casting opportunity under the different country rock conditions to the realization is to the effective control that internal mining area deep soft rock tunnel warp, satisfies the needs that this deep mine high stress soft rock tunnel of producing area and dynamic pressure tunnel were strutted.

Drawings

Fig. 1-5, 17, 24, 30-31 are schematic structural views of the present invention. Wherein 17 is a state diagram when the drawing experiment is carried out (after the drawing instrument assembly is installed); fig. 31 is an enlarged view at F1 in fig. 30.

FIG. 6 is a schematic structural view of the pushing mechanism and the steel cylinder assembly.

Fig. 7-10 are schematic structural views of the pushing mechanism.

Fig. 11-16 are schematic structural views of the steel cylinder assembly. Wherein, fig. 11 and 14 are states of installing the hole plug, and fig. 12 to 13 and 15 to 16 are states of installing the water injection ring.

Fig. 18-19 are schematic structural diagrams of the steel cylinder assembly, the heating assembly and the drawing instrument.

Fig. 20-21 are schematic views of the drawing apparatus.

Fig. 22 is a schematic view of the structure of the guide half ring.

FIG. 23 is a schematic structural diagram of the first eddy current sensor, the second eddy current sensor and the induction impeller.

Fig. 25-29 are schematic structural views of the cartridge mechanism.

Fig. 32 is an electrical block diagram according to the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1 to 32, the mechanical property experiment apparatus of the present embodiment includes a bottom plate 110, the bottom plate 110 is fixedly assembled with a top plate 140 through a first side plate 121 and a second side plate 122, the end surfaces of the bottom plate 110 and the top plate 140 close to each other are further provided with guide rails 150, and the guide rails 150 are slidably assembled with two ends of a movable side plate 130; a foot control board 220 and a lead screw supporting plate 170 are further fixed on the bottom plate 110, and a forward switch 211 and a backward switch 212 are respectively installed on the foot control board 220;

the first side plate 121 and the lead screw support plate 170 are rotatably assembled with the lead screw 410 respectively, the lead screw 410 penetrates through the movable side plate 130 and is screwed with the movable side plate 130 through threads, and one end of the lead screw 410 penetrates through the first side plate 121 and is connected with an output shaft of the side shift motor 310 through a coupler, so that the side shift motor 310 can drive the lead screw 410 to rotate clockwise and anticlockwise in the circumferential direction, and the movable side plate 130 is driven to move on the guide rail 150;

the top plate 140 is further fixed with a numerical control box 230 and at least two lifting support plates 160, the two lifting support plates 160 are respectively rotatably assembled with a lifting shaft 420, the lifting shaft 420 is fixed with a winding wheel 510, the winding wheel 510 is assembled and fixed with one end of a pull rope 520 for winding, and the other end of the pull rope 520 is connected and fixed with a hook 521; one end of the lifting shaft 420 is connected with an output shaft of the lifting motor 320 through a coupling, so that the lifting motor 320 can drive the lifting shaft 420 to rotate clockwise and anticlockwise in the circumferential direction.

A pushing mechanism C is fixed on the movable side plate 130, the pushing mechanism C comprises a first pushing bottom plate C180, a first pushing support bar C111 and a pushing limit plate C170, which are fixed on the movable side plate 130, and the first pushing support bar C111 and the pushing limit plate C170 are also fixed on the first pushing bottom plate C180;

a groove plate C520 is fixed on the first pushing bottom plate C180, a sliding groove C521 is arranged on the groove plate C520, the sliding groove C521 and a sliding rail C510 can be assembled in a sliding mode, the sliding rail C510 is fixed on the second pushing bottom plate C120, a thrust plate C130, a pushing partition plate C140 and a pushing fixed block C150 are respectively fixed on the second pushing bottom plate C120, a pushing sleeve C220 is fixed on the pushing fixed block C150, a hollow pushing inner sleeve C221 is arranged inside the pushing sleeve C220, one end of the pushing inner sleeve C221 is fixedly assembled with the pushing blanking cap C410, the other end of the pushing inner sleeve C221 is movably assembled with one end of the shell of the pushing cylinder C210 in the axial direction, a triggering convex shaft C212 is further arranged on the end of the pushing cylinder C210, the triggering convex shaft C212 is sleeved with one end of a resistance spring C420, and the other end of the resistance spring C420 is in contact with or fixed on the inner side of the pushing blanking;

a third pushing limit switch C330 is fixed on the pushing plug C410, the third pushing limit switch C330 is used for controlling the on-off of the current of the pushing oil pump supplying oil to the pushing oil cylinder C210, and when the third pushing limit switch C330 is triggered, the current to the pushing oil pump is cut off, so that the pushing oil pump stops running, namely the pushing oil cylinder C210 stops running;

the pushing oil cylinder C210 is provided with a pushing telescopic shaft C211, and the pushing oil cylinder C210 can drive the pushing telescopic shaft C211 to reciprocate in the axial direction; one end of the pushing telescopic shaft C211 penetrates through the pushing partition plate C140 and then is assembled and fixed with the thrust plate C130, a thrust abdicating groove C131 is formed in the thrust plate C130, the thrust abdicating groove C131 is used for enabling the thrust plate C130 not to contact the anchor cable D210, and namely the thrust abdicating groove C131 can be directly sleeved outside the anchor cable D210;

a pushing guide groove C181 is formed in the first pushing bottom plate C180, one end of the pushing guide groove C181 is sealed through a pushing limiting block C531, the other end of the pushing guide groove C181 is sealed through a pushing limiting plate C170, a pushing driving plate C532 is slidably mounted in the pushing guide groove C181, the pushing driving plate C532 is fixed on the second pushing bottom plate C120, one end of a pushing screw C620 penetrates through the pushing driving plate C532 and then is rotatably assembled with the pushing limiting block C531, the other end of the pushing screw C620 penetrates through the pushing limiting plate C170 and then is connected with an output shaft of a pushing motor C610 through a coupler, and the pushing motor C610 can drive the pushing screw C620 to rotate clockwise and anticlockwise in the circumferential direction;

a second pushing limit switch C320 and a first pushing limit switch C310 are respectively mounted on the pushing limit plate C170 and the pushing limit block C531, trigger ends of the second pushing limit switch C320 and the first pushing limit switch C310 respectively face the pushing drive plate C532 and the pushing trigger plate C160, and the pushing trigger plate C160 is fixed on the second pushing base plate C120;

second propelling movement limit switch C320, first propelling movement limit switch C310 are used for controlling the start and stop of propelling movement motor respectively, and second propelling movement limit switch C320, first propelling movement limit switch C310 pass through two accuse switch circuit connections to propelling movement motor C610, similar with the dual control lamp, as long as one of them is triggered of second propelling movement limit switch C320, first propelling movement limit switch C310, propelling movement motor C610 current disconnection so to the out-of-service.

In this embodiment, the second pushing limit switch C320 and the first pushing limit switch C310 are respectively used for limiting the position of the pushing cylinder C210 relative to the movable side plate 130. After the steel cylinder assembly is installed in the lower heating groove a2221, the steel cylinder assembly needs to be pushed to the clamping seat mechanism in the axial direction, at this time, the pushing motor C610 is started to drive the pushing screw C620 to rotate, the pushing screw C620 drives the pushing drive plate C532 through threads so that the second pushing bottom plate C120 moves towards the anchor cable D210 in the sliding groove C521 through the sliding rail C510 until the end face of the pushing plate C130 is opposite to the end face of the end cover D310, at this time, the second pushing limit switch C320 is extruded by the pushing drive plate C532 to be triggered, and the pushing motor stops running. And then starting a pushing oil pump, so that the pushing oil cylinder C210 drives the pushing telescopic shaft to apply axial thrust to the clamping seat mechanism to the steel cylinder assembly until the steel cylinder assembly is installed in place. In the process, the steel cylinder assembly is pushed by the push telescopic shaft until the steel cylinder assembly cannot be pushed, and then the push telescopic shaft continues to extend out, so that the shell of the push oil cylinder C210 is reversely driven to overcome the elastic force of the resistance spring C420 to move towards the third push limit switch C330 until the third push limit switch C330 is triggered, at the moment, the push oil pump stops running, the steel cylinder assembly is judged to be installed in place, then the push mechanism C resets, namely the push trigger plate C160 triggers the first push limit switch C310, the push telescopic shaft retracts to the initial state, and the push oil cylinder resets under the elastic force of the resistance spring, so that the trigger state of the third push limit switch C330 is released.

The second side plate 122 is provided with a clamping seat mechanism, a heating support bottom plate A120 and a heating support top plate 180, the heating support bottom plate A120 is fixedly provided with a heating support platform A130, the heating support platform A130 is fixedly provided with a lower heating half cylinder A222, a half of a heating coil A230 is arranged in the lower heating half cylinder A222, and the end parts of the half of the heating coil A230 are respectively in conductive connection with a conductive hole A232; the conductive hole a232 can be plugged with the conductive column a231 for conducting electricity, the conductive column a231 is disposed at the end of the other half of the heating coil a230, and the half of the heating coil a230 is installed in the upper heating half cylinder a221, and the two half of the heating coil a230 in the upper heating half cylinder a221 and the lower heating half cylinder a222 form a complete spiral coil after the conductive column and the conductive hole are plugged for conducting electricity. At this time, an alternating current is applied to the heating coil a230, so that the heating coil a230 generates an alternating magnetic field, and the steel cylinder D110 generates heat to simulate a geothermal environment.

The upper heating half cylinder A221 is provided with an upper heating guide plate A2212 and an upper heating arc groove A2211, the lower heating half cylinder A222 is provided with a lower heating guide plate A2222 and a lower heating arc groove A2221, the upper heating arc groove A2211 and the lower heating arc groove A2221 wrap the steel cylinder D110 together, and the shell parts of the upper heating half cylinder A221 and the lower heating half cylinder A222 are made of insulating and magnetism-insulating materials such as plastic steel.

Preferably, in order to estimate the temperature inside the steel cylinder, a temperature probe a250 attached to the outer wall of the steel cylinder is installed in the lower heating arc groove a2221, and the output end of the temperature probe a250 is electrically connected to the input end of the temperature sensor, so that the temperature of the outer wall of the steel cylinder can be detected. After the steel cylinder is heated for a long time at a constant temperature, the temperature inside the steel cylinder is almost consistent with the temperature of the outer wall or is in a linear relation, so that the approximate temperature inside the steel cylinder can be deduced through the temperature detected by the temperature sensor, and therefore, the terrestrial heat can be simulated relatively accurately.

Preferably, when the steel cylinder D120 is installed in the clamping seat mechanism, there is a requirement for the circumferential position of the steel cylinder D120, which requires positioning the circumference of the steel cylinder D120 in advance, in this embodiment, a positioning block D140 is fixed on the steel cylinder D120, a positioning half ring a320 is installed on the housing of the lower heating half cylinder a222, and a positioning slot a321 is provided on the positioning half ring a 320. When the positioning device is used, the circumference of the steel cylinder D120 can be positioned only by ensuring that the positioning block D140 is arranged in the positioning clamping groove A321.

Preferably, since a circumferential torque is required to be applied to the steel cylinder D110 in actual use, if the positioning half ring a320 is fixed to the outer shell of the lower heating half cylinder a222, the application of the torque is seriously affected, so that there are two options, namely, the positioning block D140 is removed, which is obviously very troublesome; the second positioning half a320 is designed in a fixed, movable manner, which is obviously the best option.

Therefore, the applicant fixes the retaining half-ring a310 on the outer shell of the lower heating half-cylinder a222, the retaining half-ring a310 and the outer shell of the heating half-cylinder a222 form a retaining arc groove a312 therebetween, and the positioning half-ring a320 is installed in the retaining arc groove a312 and can rotate at a certain angle on the inner circumference of the retaining arc groove a312, so that the application of the torque force is not affected.

The retaining half ring A310 is further provided with a through limiting arc groove A311 and a spring pin A350, a stud part of the locking bolt A330 is assembled with a compression nut A331, then penetrates through the limiting arc groove A311 and is assembled and fixed with the positioning half ring A320, the stud part and the spring pin A350 are respectively assembled and fixed with two ends of a reset tension spring A340, and the reset tension spring A340 enables the locking bolt A330 and the spring pin A350 to be always in an initial state, namely the positioning clamping groove A321 is always positioned at a position for positioning the positioning block D140.

In the initial state, the end surface of the compression nut a331 and the end surface of the retaining half ring a310 are compressed, so as to form resistance to the positioning half ring a320, so that the positioning half ring a320 is relatively fixed, and the positioning effect is not affected. When torque needs to be applied to the steel cylinder, the locking bolt is slightly screwed out of the positioning half ring A320, so that the compression nut A331 is not compressed with the end face of the retaining half ring A310 any more, and at the moment, the positioning half ring A320 can rotate, and the application of the torque is not influenced. After the torsion is eliminated and the steel cylinder assembly is taken out, the reset tension spring A340 drives the positioning half ring A320 to reset through self elasticity, and then the locking bolt A330 is screwed to the positioning half ring A320 until the end surface of the compression nut A331 is compressed with the end surface of the retaining half ring A310.

Preferably, a control panel a240 is further fixed on the heating support table a130, a plurality of switches a241 are installed on the control panel a240, the forward switch 211 and the backward switch 212 are all foot-operated speed-adjusting switches (similar to the forward and rear leg pedals of the toy electric vehicle), and the switches a241 include:

the side shift motor change-over switch is used for changing over the state that the forward switch 211 and the backward switch 212 are in controlling the side shift motor, and at the moment, the forward switch 211 and the backward switch 212 are respectively switched to input forward rotation, reverse rotation and rotation angle instructions to the side shift motor driver; the side shift motor driver is used for supplying power to the side shift motor to control the working state of the side shift motor, such as positive and negative rotation and rotation angle;

the lifting motor change-over switch is used for changing over the forward switch 211 and the backward switch 212 to be in a state of controlling the lifting motor, and at the moment, the forward switch 211 and the backward switch 212 are changed over to input forward rotation, reverse rotation and rotation angle instructions to the lifting motor driver respectively; the lifting motor driver is used for supplying power to the lifting motor so as to control the working state of the lifting motor, such as positive and negative rotation and rotation angle;

the push motor switching switch is used for switching the forward switch 211 and the backward switch 212 to be in a state of controlling the push motor, and at the moment, the forward switch 211 and the backward switch 212 are switched to input forward rotation, reverse rotation and rotation angle instructions to the push motor driver respectively; the pushing motor driver is used for supplying power to the pushing motor so as to control the working state of the pushing motor, such as positive and negative rotation and rotation angle;

the push oil pump switch is used for switching the states of the forward switch 211 and the backward switch 212 for controlling the push oil pump and the push switching valve, and at the moment, the forward switch 211 is switched to transmit a power instruction to a motor driver of the push oil pump so as to control the extension amplitude of the push telescopic shaft; the backward switch 212 controls the reversing of the pushing reversing valve, when the backward switch 212 is triggered, the pushing reversing valve is switched from the oil supply direction for driving the pushing telescopic shaft to extend out to the retracting direction for driving the pushing telescopic shaft, and the backward switch 212 also inputs a power instruction to a motor driver of the pushing oil pump so as to control the retracting amplitude of the pushing telescopic shaft;

the impact oil pump change-over switch is used for changing over the states of the forward switch 211 and the backward switch 212 for controlling the impact oil pump and the impact switching valve, and at the moment, the forward switch 211 is changed over to transmit a power instruction to a motor driver of the impact oil pump so as to control the extension amplitude of the impact telescopic shaft; the reversing switch 212 controls the impact reversing valve to reverse, when the reversing switch 212 is triggered, the impact reversing valve is switched from the oil supply direction for driving the impact telescopic shaft to extend out to the retraction direction for driving the impact telescopic shaft, and the reversing switch 212 also inputs a power instruction to the motor driver of the impact oil pump so as to control the retraction amplitude of the impact telescopic shaft;

the torque oil pump change-over switch is used for changing over the states of the forward switch 211 and the backward switch 212 for controlling the torque oil pump and the torque switching valve, and at the moment, the forward switch 211 is changed over to transmit a power instruction to a torque oil pump motor driver so as to control the extension amplitude of the torque telescopic shaft; the reverse switch 212 controls the reversing of the torque reversing valve, when the reverse switch 212 is triggered, the torque reversing valve is switched from the oil supply direction of the extension of the driving torque telescopic shaft to the retraction direction of the driving torque telescopic shaft, and the reverse switch 212 also inputs a power instruction to the torque oil pump motor driver to control the retraction amplitude of the torque telescopic shaft.

Preferably, the upper heating half cylinder a221 is fixedly assembled with one end of the downward moving telescopic shaft a111, the other end of the downward moving telescopic shaft a111 is installed in the downward moving cylinder a110, and the downward moving cylinder a110 is fixed on the heating supporting top plate 180. When the steel cylinder needs to be heated, the downward moving oil cylinder A110 drives the downward moving telescopic shaft A111 to move downward so as to drive the upper heating half cylinder A221 to move downward to the heating half cylinder A222 until the heating coil A230 forms a loop, at the moment, the conductive column is judged to be in inserted connection with the conductive hole for conduction, the upper heating half cylinder A221 and the lower heating half cylinder A222 are assembled in place, then the downward moving oil cylinder A110 stops running, and the heating coil A230 is electrified to generate an alternating magnetic field.

Preferably, a heating guide rod a410 is fixed between the heating support top plate 180 and the heating support bottom plate a120, and the heating guide rod a410 passes through the upper heating guide plate a2212 and the lower heating guide plate a2222 respectively and is movably assembled with the upper heating guide plate a2212 and the lower heating guide plate a2222 in the axial direction. The design is mainly to ensure the assembly precision between the conductive columns and the conductive holes.

Referring to fig. 11 to 16, the steel cylinder assembly D includes a steel cylinder D110, a positioning cylinder D120 is fixed to one end of the steel cylinder D110, a lifting lug D130 and a positioning block D140 are further respectively mounted on the steel cylinder D110, a through falling hole is formed in the lifting lug D130, when the steel cylinder assembly D needs to be lifted, the hook and the falling hole are hooked, then the steel cylinder assembly D can be lifted by winding the pull rope through the lifting motor, and then the steel cylinder assembly can be moved below the pull rope by reversing the lifting motor.

Inside chamber D112 of filling of being of steel cylinder D110, and be provided with into outlet D111 on the steel cylinder D110 lateral wall, block scarce groove D113 and outlet D111 one end intercommunication, and block lack and install in proper order by filling chamber D112 to outlet D111 direction in the groove D113 and block piece D450, diaphragm D440, it is provided with the water hole of crossing that blocks blind hole D451 and several run through on blocking piece D450, diaphragm D440 is plastic film, if with polyvinyl chloride, polyethylene, polypropylene etc. it covers and is provided with on blocking piece D450 and blocks blind hole D451 a terminal surface with sealed this end of block D450.

The water inlet and outlet hole D111 is hermetically assembled with the hole plug D410 when water is not introduced, and the hole plug D410 is not contacted with or can not puncture the diaphragm D440; the business turn over water hole D111 need when leading to water with the sealed assembly of second water injection pipe D422 one end, the sealed assembly of second water injection pipe D422 other end and first water injection pipe D421 one end, the inside intercommunication of first water injection pipe D421 other end and water ring D420, second water injection pipe D422 is packed into and is served and be fixed with conical head D430 in business turn over water hole D111, the less terminal surface of diameter of conical head D430 is to diaphragm D440. When water is required to be injected or drained from the filling cavity D112, the conical head D430 is required to penetrate the diaphragm D440 and then is arranged in the blind blocking hole D451, so that the second water injection pipe D422 is communicated with the filling cavity D112 to inject or drain water. And a quick joint D423 is also installed on the water ring D420, and the quick joint D423 is used for being assembled with a matching quick joint on an external water pipe so as to quickly and hermetically communicate the external water pipe with the second water injection pipe D42.

The design of the blocking block D450 and the diaphragm D440 is mainly to avoid blockage caused by air entering the water inlet and outlet holes D111 when fillers such as broken stones, rock soil, wet soil, water and the like are filled in the filling cavity, so that water injection or drainage cannot be performed.

The inside location inner tube D123 that is of a location section of thick bamboo D120, and be provided with block half-groove D121 on the outer wall of a location section of thick bamboo D120, be provided with block lug D122 on the location inner tube D123 inner wall, location inner tube D123 diameter is less than the chamber diameter of packing to make location inner tube D123 and the chamber D112 intercommunication department of packing form spacing platform D124, spacing platform D124 is used for limiting the shutoff stopper D320 of packing chamber D112 and the one end that the location inner tube D123 communicates in its axial maximum position of packing into, be provided with sealing plug column part D321 on the shutoff stopper D320, sealing plug column part D321 and location inner tube D123 inner wall seal assembly. In this embodiment, the blocking plug D320 is made of an insulating and magnetic-insulating material, such as hard rubber.

The other end of the filling cavity D112 is hermetically assembled with an end cap sealing column part D311 of an end cap D310, and the end cap D310 is made of a high-strength material, such as 45 steel. The end cover D310 is provided with an end cover through hole through which an anchor cable can pass.

When the grouting anchor cable D210 is used, the plugging plug D320 is installed in the filling cavity D112, then crushed stone, rock soil, slag and the like in rock and rock soil states at the underground part needing to be supported are filled and simulated, then the crushed stone, rock soil, slag and the like are compressed to the underground rock and rock soil density state, the end cover D310 is covered, the grouting anchor cable D210 is installed according to the construction step of driving the anchor cable underground, and one end of the anchor cable D210 penetrates through the through hole of the end cover and then penetrates out of the filling cavity D112.

The fill cavity D112 may then be filled, held at a certain water pressure, or drained as needed to simulate downhole water infiltration geology, or to have a water pressure geology.

When water injection or water pressure maintenance is needed, a check valve is connected in series on a water pipe, the flow direction of the check valve flows into the filling cavity D112, then the outside is pressurized by a booster pump and then sent into a pressure maintaining cylinder, and then the outside is input into the filling cavity through the pressure maintaining cylinder and the check valve. The pressure maintaining cylinder is mainly used for maintaining a constant pressure water source input into the filling cavity, and the booster pump is used for providing boosting and pumping of the water source.

Referring to fig. 18 to 23, in this embodiment, a pulling-out instrument assembly is used for performing a pulling-out test on an anchor cable, the pulling-out instrument assembly includes a support cylinder D510, a pulling-out cylinder D520, a half-lock ring D530, and a lock sleeve D540, the support cylinder D510, the pulling-out cylinder D520, and the lock sleeve D540 are all sleeved on the anchor cable D210, two end faces of the support cylinder D510 are respectively pressed against one end face of an end cover D310 and one end face of the pulling-out cylinder D520, the support cylinder D510 is provided with a plurality of penetrating observation grooves D511, and when the cable pulling-out instrument assembly is used, a line can be led out through the observation grooves D310 or the observation grooves D511 after a strain gauge is;

the drawing oil cylinder D520 is supplied with oil by a drawing oil pump, so that thrust is generated on the support cylinder D510 to generate reverse tension on the anchor cable, and the existing steel bar drawing instrument can be referred to. A groove D521 is formed in the other end face of the drawing oil cylinder D520, the groove D521 is assembled with a semicircular part D531 of a semi-locking ring D530, a semi-conical block part D532 is further arranged on the semi-locking ring D530, a clamping semi-groove D533 is formed in the semi-conical block part D532, and the anchor cable is clamped by the two clamping semi-grooves D533 together;

the two half-cone block parts D532 are closed to form a circular truncated cone and are all installed in the tapered hole D541 of the lock sleeve D540, the half-cone block parts D532 are installed in the tapered hole D541 and then gradually move in the tapered hole D541 under the action of the drawing oil cylinder, so that the clamping force of the two clamping half-grooves D533 on the anchor cable is gradually increased until the two clamping half-grooves D533 and the anchor cable are clamped and fixed, and the acting force of the drawing oil cylinder is completely applied to the anchor cable D210 to draw the anchor cable.

The end of the anchor cable D210 is further installed in the inner sleeve D571 of the threaded sleeve D570, and the anchor cable and the threaded sleeve D570 are relatively fixed, in this embodiment, the threaded sleeve and the anchor cable are directly welded and fixed. The outer wall of the threaded sleeve D570 is provided with external threads, a first limit nut D551, a detection impeller D560 and a second limit nut D552 are sequentially sleeved on the threaded sleeve D570 in a threaded screwing manner from the lock sleeve D540 to the axial direction of the closed end of the inner threaded sleeve, a plurality of blades uniformly distributed on the circumference of the detection impeller D560 are arranged on the detection impeller D560, the blades are made of conductive magnetic materials and are opposite to the detection end of the second eddy current sensor A212, and therefore the position of the blades can be detected through the second eddy current sensor A212 to judge the rotation angle of the impeller;

the first eddy current sensor A211 is arranged on the screw sleeve in the axial direction and near the end face, the detection end of the first eddy current sensor A211 is opposite to the end face of the screw sleeve D570, and the screw sleeve is made of a conductive and magnetic conductive material. Therefore, the axial displacement of the screw sleeve D570, namely the axial displacement of the anchor cable can be detected through the first eddy current sensor. The first eddy current sensor a211 and the second eddy current sensor a212 are both fixed on the movable side plate 130 through a mounting plate.

Referring to fig. 29 to 31, the clamping seat mechanism includes a first fixing cover B310 and a second fixing cover B320, the first fixing cover B310 is fixed on the second side plate 122, a torsion plate B340 is installed inside the second fixing cover B320, a torsion applying block B341 is fixed on a side wall of the torsion plate B340, the torsion applying block B341 is hinged to one end of a torsion telescopic shaft B231 through a torsion hinge pin B410, the other end of the torsion telescopic shaft B231 is installed in a torsion cylinder B230, and the torsion cylinder can drive the torsion telescopic shaft B231 to move axially;

the torque cylinder B230 is fixed on the second side plate 122, the torsion disc B340 is further provided with an impact cylinder B270, an impact telescopic shaft B271 of the impact cylinder B270 penetrates through the clamping seat B330 and then is assembled and fixed with the impact column B510, the torsion disc B340 is further fixed with a rotary disc B350, and the rotary disc B350 and the second side plate 122 can be circumferentially and rotatably assembled;

one end of the torsion shaft B110 is fixedly assembled with the rotating disc B350, and the other end of the torsion shaft B110 passes through the second side plate 122 and is connected with the input shaft of the first torque sensor B210, so that when the torsion disc B340 rotates, torque information can be input to the first torque sensor B210 through the torsion shaft B110 to detect the torque of the torsion disc B340;

the clamping seat B330 is mounted on the rotating disc B350 and is relatively fixed with the rotating disc B350, the second fixing cover B320 is mounted on the clamping seat B330, a clamping seat limiting hole B331 is formed in the clamping seat B330, and the clamping seat limiting hole B331, the clamping seat B330, the torsion disc B340, the rotating disc B350, the torsion shaft B110 and the impact telescopic shaft B271 are coaxial;

an impact limiting ring B272 is arranged on the part, located in the clamping seat limiting hole B331, of the impact telescopic shaft B271, and the impact limiting ring B272 is used for limiting the maximum displacement of the impact telescopic shaft B271 towards the impact oil cylinder B270;

a seat disc B360 is further fixed on the clamping seat B330, a convex ring B361 is arranged on the seat disc B360, a driving screw cylinder B540 is mounted on the convex ring B360, one end of the driving screw cylinder B540 penetrates out of the convex ring B361 and is assembled and fixed with the helical gear B430, the other end of the driving screw cylinder B540 is located in a clamping guide groove B363 on the inner side of the convex ring B361 and is assembled with one end of a clamping screw B530 in a threaded screwing manner, the other end of the clamping screw B530 is assembled and fixed with one end of a clamping block B520, the clamping block B520 is clamped and assembled in the clamping guide groove B363 and can slide in the clamping guide groove B363, a clamping convex block B521 is arranged at one end, far away from the clamping screw B530, of the clamping block B520, and the clamping convex block B521 is clamped and assembled with a clamping half groove D121;

the clamping guide groove B363 is formed by two clamping guide pieces B362, the clamping guide pieces B362 are fixed on a seat B360, the helical gear B430 is in meshing transmission with a helical gear part B412 of the bull gear B410, the bull gear B410 is also provided with a straight gear part B411, the straight gear part B411 is in meshing transmission with a pinion gear B420, the pinion gear B420 is fixed on a clamping output shaft B241, the clamping output shaft B241 is installed in the clamping motor B240, and the clamping motor B240 is installed on the seat B330; the chucking output shaft B241 is also connected to the input shaft of the second torque sensor B250 so that the second torque sensor B250 can detect the torque of the chucking output shaft B241;

the bull gear B410 is sleeved outside the gear shaft B370 and can be assembled with the gear shaft B370 in a circumferential rotating mode, the gear shaft B370 is installed on the seat plate B360, and the bull gear B410 and the gear shaft B370 are installed in the second fixed cover B320.

Preferably, a through holding hole is arranged inside the helical gear B430, a detection rod B531 is fixed at one end of the clamping screw B530 which is inserted into the driving screw cylinder B540, one end of the detection rod B531 passes through the holding hole and the end surface thereof is opposite to the detection end of the third eddy current sensor B260, the third eddy current sensor B260 is fixed in the detection sleeve B261, and the detection sleeve B261 is fixed on the second fixed cover B320.

The impact head B510 is provided with a clamping groove B511, the clamping groove B511 is clamped and assembled with the clamping convex block D122, a fourth eddy current sensor B280 is further installed inside the impact head B510, and the detection end of the fourth eddy current sensor B280 is opposite to the end face of the anchor cable D210. When the cable is used, the fourth eddy current sensor is used for detecting the displacement of the end face of the anchor cable D210, and the detection of the fourth eddy current sensor B280 is not influenced because the sealing plug is made of an insulating magnetism-insulating material.

Referring to fig. 32, a half heating coil a230 is connected in series with a resistor through a wire, to prevent short-circuiting, and is electrically connected to a sensing terminal of a current sensor after being connected in series, so that the current sensor can detect whether current passes through the heating coil a230, the signal end of the current sensor is in communication connection with the analog signal end of the data acquisition card, the digital signal end of the data acquisition card is in communication connection with the signal end of the controller, the analog signal end of the data acquisition card is also respectively in communication connection with the signal ends of a first eddy current sensor, a second eddy current sensor, a third eddy current sensor, a fourth eddy current sensor, a first torque sensor, a second torque sensor, a strain gauge, a pressure gauge, a change-over switch, a forward switch and a backward switch, the pressure change is used for detecting the water pressure in the water ring, so that the water pressure of the water seepage geology is accurately simulated.

The clamping motor is driven by a clamping motor driver, so that the steering, power, rotation angle and the like of the clamping motor are controlled by the clamping motor driver.

The application process of this embodiment is as follows:

and S1, firstly, an anchor cable is tied in the steel cylinder, then the movable side plate is driven to a position close to the first side plate through the side shifting motor, so that a sufficient space is reserved for subsequent operation, and at the moment, the moving position and the moving speed of the movable side plate can be controlled through the forward switch and the rear leg switch.

S2, the steel cylinder assembly is pulled upwards between the upper heating half cylinder A221 and the lower heating half cylinder A222 through the pull rope, then the steel cylinder assembly is manually pushed to a position between the lower heating groove A2221 and the upper heating groove A2211, then the pull rope is released to enable the steel cylinder assembly to fall on the lower heating groove A2221, and the winding or releasing and the winding and releasing speed of the pull rope can be controlled through the forward switch and the rear leg switch in the process.

S3, manually rotating the steel cylinder to enable the positioning block D140 to be opposite to the positioning clamping groove A321, then starting the pushing assembly to enable the thrust plate C130 to be opposite to the end face of the end cover, then starting the pushing oil cylinder to enable the pushing output shaft to apply axial thrust to the steel cylinder assembly, and judging that the steel cylinder assembly is pushed in place until the third pushing limit switch is triggered; in the process, the rotation direction and the rotation speed of the pushing motor can be controlled through the forward switch and the rear leg switch. In addition, the stretching and retracting speed and the like of the pushing telescopic shaft can be controlled through a forward switch and a rear leg switch.

S4, the clamping motor rotates forwards to drive the large gear to rotate, the large gear drives the helical gear B430 to rotate through the helical gear part B412 to drive the driving screw barrel B540 to rotate, the clamping screw B530 is driven by the screw to axially push the fixture block B520 to move towards the clamping half groove D121 when the driving screw barrel rotates, the clamping projection B521 and the clamping half groove D121 are assembled in a clamping mode until the clamping projection B521 and the clamping half groove D121 are assembled in a clamping mode, the large gear cannot rotate at the moment, the second torque sensor can detect that torque is increased instantly, when a preset value is reached, it is judged that the fixture block is clamped in place, and;

s5, when water is needed to be injected into or drained from the filling cavity, the external water pipe is directly connected with the quick connector, and when water is needed to be drained, the flow direction of the one-way valve flows outwards from the filling cavity.

S6, when heating is needed, the upper heating half cylinder A221 is driven to move downwards through the downward movement telescopic shaft until the current sensor detects a signal and judges that the upper heating half cylinder A221 moves downwards to the right position, at the moment, the downward movement of the oil cylinder is stopped, and alternating current is introduced into the heating coil, so that the steel cylinder is heated through an alternating magnetic field; meanwhile, the temperature of the outer wall of the steel cylinder is detected through the temperature sensor, so that the temperature of underground geology is simulated.

And S7, attaching strain gauges to the parts, located in the observation grooves, of the anchor cables according to needs, and then sequentially installing the drawing instrument assemblies.

And S8, according to the experimental requirements, impact force and torsion can be applied to the interior of the steel cylinder through the impact oil cylinder and the torque oil cylinder so as to simulate rock burst. In the use, the torsion angle of anchor rope is detected to accessible second eddy current sensor, and corresponding can know the torsion range on the anchor rope circumference with the foil gage testing result.

S9, the anchor cable is pulled through the pulling oil cylinder, and meanwhile displacement of the two ends of the anchor cable is detected through the first eddy current sensor and the fourth eddy current sensor so that the pulled length and the deformation length of the anchor cable can be judged.

And S10, after the use is finished, when the fixture block B520 needs to be detached, the clamping motor rotates reversely, so that the screw cylinder B540 is driven to drive the fixture block B520 to exit from the clamping half groove D121, and the fixture block is judged to be separated from the clamping half groove after the third eddy current sensor detects that the detection rod B531 reaches a preset distance value, and the clamping motor stops running at the moment.

In this embodiment, all motors are stepping motors with a speed reduction function, and a single chip microcomputer or a PLC is selected as the controller. The oil cylinders in the embodiment can all adopt stepping oil cylinders, and the eddy current sensors in the embodiment can all adopt eddy current displacement sensors.

The details of the present invention are well known to those skilled in the art.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. A mechanical property experimental device for restoring a practical application scene of a grouting anchor cable comprises a bottom plate, a steel cylinder assembly and a drawing instrument assembly, wherein the steel cylinder assembly is used for grouting and fixing the anchor cable in a steel cylinder; the drawing instrument assembly is used for carrying out drawing experiments on the anchor cable which is fixed in the steel cylinder through grouting; the method is characterized in that:

the bottom plate is fixedly assembled with the top plate through the first side plate and the second side plate respectively, guide rails are further mounted on the end faces, close to each other, of the bottom plate and the top plate, and the guide rails are slidably assembled with the two ends of the movable side plate respectively; a foot control plate and a lead screw supporting plate are further fixed on the bottom plate, and a forward switch and a backward switch are respectively mounted on the foot control plate;

the first side plate and the lead screw supporting plate are respectively rotatably assembled with a lead screw, the lead screw penetrates through the movable side plate and is assembled with the movable side plate in a threaded screwing mode, and one end of the lead screw penetrates through the first side plate and is connected with an output shaft of the side shifting motor through a coupler; the second side plate is provided with a clamping seat mechanism, a heating support bottom plate and a heating support top plate; the clamping seat mechanism is used for fixing the steel cylinder of the steel cylinder assembly and can apply torsion and impact force to the inner cavity of the steel cylinder assembly.

2. The mechanical property experiment device of claim 1, which is characterized in that: the pushing mechanism is fixed on the movable side plate and comprises a first pushing bottom plate, a first pushing supporting strip and a pushing limiting plate, wherein the first pushing bottom plate, the first pushing supporting strip and the pushing limiting plate are fixed on the movable side plate;

a groove plate is fixed on the first pushing bottom plate, a sliding groove is formed in the groove plate, the sliding groove and the sliding rail can be assembled in a sliding mode, the sliding rail is fixed on a second pushing bottom plate, a thrust plate, a pushing partition plate and a pushing fixed block are respectively fixed on the second pushing bottom plate, a pushing sleeve is fixed on the pushing fixed block, a hollow pushing inner sleeve is arranged inside the pushing sleeve, one end of the pushing inner sleeve is fixedly assembled with a pushing plug cover, the other end of the pushing inner sleeve and one end of a shell of a pushing oil cylinder can be assembled in an axially movable mode, a triggering convex shaft is further arranged at the end of the pushing oil cylinder, the triggering convex shaft is sleeved with one end of a resistance spring, and the other end of the resistance spring is in contact with or fixed on the inner side of the pushing plug;

a third pushing limit switch is fixed on the pushing plug cover and used for controlling the on-off of the current of a pushing oil pump for supplying oil to the pushing oil cylinder, and when the third pushing limit switch is triggered, the third pushing limit switch cuts off the current to the pushing oil pump, so that the pushing oil pump stops running;

the pushing oil cylinder is provided with a pushing telescopic shaft and can drive the pushing telescopic shaft to reciprocate in the axial direction; one end of the pushing telescopic shaft penetrates through the pushing partition plate and then is assembled and fixed with the thrust plate; and the thrust plate is provided with a thrust abdicating groove which is used for preventing the thrust plate from contacting the anchor cable.

3. The mechanical property experiment device of claim 2, which is characterized in that: the first pushing bottom plate is provided with a pushing guide groove, one end of the pushing guide groove is sealed through a pushing limiting block, the other end of the pushing guide groove is sealed through a pushing limiting plate, a pushing driving plate is slidably mounted in the pushing guide groove, the pushing driving plate is fixed on the second pushing bottom plate, one end of a pushing screw penetrates through the pushing driving plate and then is rotatably assembled with the pushing limiting block, and the other end of the pushing screw penetrates through the pushing limiting plate and then is connected with an output shaft of a pushing motor through a coupler;

the second pushing limit switch and the first pushing limit switch are respectively arranged on the pushing limit plate and the pushing limit block, the triggering ends of the second pushing limit switch and the first pushing limit switch respectively face the pushing drive plate and the pushing trigger plate, and the pushing trigger plate is fixed on the second pushing bottom plate;

the second pushing limit switch and the first pushing limit switch are respectively used for controlling starting and stopping of the pushing motor, and the second pushing limit switch and the first pushing limit switch are connected with the pushing motor through a double-control switch circuit.

4. The mechanical property experiment device of claim 1, which is characterized in that: a heating support platform is fixed on the heating support bottom plate, a lower heating half cylinder is fixed on the heating support platform, a half of a heating coil is installed in the lower heating half cylinder, and the end parts of the half of the heating coil are respectively in conductive connection with the conductive holes; the conductive hole can be inserted and conducted with the conductive column, the conductive column is arranged at the end part of the other half of the heating coil, the half of the heating coil is arranged in the upper heating half cylinder, and the heating coils in the upper heating half cylinder and the lower heating half cylinder form a complete spiral coil after the conductive column and the conductive hole are inserted and conducted;

the upper heating half cylinder is respectively provided with an upper heating guide plate and an upper heating arc groove, the lower heating half cylinder is respectively provided with a lower heating guide plate and a lower heating arc groove, the upper heating arc groove and the lower heating arc groove jointly wrap the steel cylinder, and the shell parts of the upper heating half cylinder and the lower heating half cylinder are made of insulating and antimagnetic materials;

a temperature probe tightly attached to the outer wall of the steel cylinder is installed in the lower heating arc groove, and the output end of the temperature probe is in conductive connection with the input end of the temperature sensor; the shell of the lower heating half cylinder is provided with a positioning semi-ring, the positioning semi-ring is provided with a positioning clamping groove, and the positioning clamping groove can be clamped and assembled with a positioning block to fix the circumferential direction of the steel cylinder;

the heating coil passes through the wire and establishes ties with resistance, and establishes ties the back and current sensor's sense terminal conducting connection, current sensor's signal terminal and data acquisition card's analog signal end communication connection, data acquisition card's digital signal end and the signal terminal communication connection of controller, data acquisition card's analog signal end still is connected with the signal terminal communication of first eddy current sensor, second eddy current sensor, third eddy current sensor, fourth eddy current sensor, first torque sensor, second torque sensor, foil gage, manometer, change over switch, advance switch, retreat switch respectively, the pressure becomes and is used for detecting the water pressure in the water ring.

5. The mechanical property experiment device of claim 4, which is characterized in that: a retaining half ring is fixed on the shell of the lower heating half cylinder, a retaining arc groove is formed between the retaining half ring and the shell of the heating half cylinder, and the positioning half ring is installed in the retaining arc groove and can rotate in the inner circumference of the retaining arc groove;

the retaining semi-ring is also provided with a through limiting arc groove and a fixed spring pin, a stud part of the locking bolt penetrates through the limiting arc groove after being assembled with the compression nut and is assembled and fixed with the positioning semi-ring, the stud part and the spring pin are respectively assembled and fixed with two ends of a reset tension spring, and the reset tension spring enables the locking bolt and the spring pin to be always in an initial state; in the initial state, the end surface of the compression nut is tightly pressed with the end surface of the retaining semi-ring;

the upper heating half cylinder is fixedly assembled with one end of the downward moving telescopic shaft, the other end of the downward moving telescopic shaft is arranged in the downward moving oil cylinder, and the downward moving oil cylinder is fixed on the heating support top plate; and a heating guide rod is fixed between the heating support top plate and the heating support bottom plate, penetrates through the upper heating guide plate and the lower heating guide plate respectively, and can move upwards in the axial direction to be assembled with the upper heating guide plate and the lower heating guide plate.

6. The mechanical property experiment device of claim 1, which is characterized in that: still be fixed with control panel on the heating brace table, the last a plurality of change over switches of installing of control panel, switch forward switch, backward switch are foot-operated speed governing switch, change over switch includes:

the side shift motor change-over switch is used for changing over the forward switch and the backward switch to be in a state of controlling the side shift motor, and the forward switch and the backward switch are switched to input forward rotation, reverse rotation and rotation angle instructions to the side shift motor driver respectively; the side shift motor driver is used for supplying power to the side shift motor to control the working state of the side shift motor;

the lifting motor change-over switch is used for changing over the forward switch and the backward switch to be in a state of controlling the lifting motor, and the forward switch and the backward switch are switched to input forward rotation, reverse rotation and rotation angle instructions to the lifting motor driver respectively; the lifting motor driver is used for supplying power to the lifting motor so as to control the working state of the lifting motor;

the push motor switching switch is used for switching the forward switch and the backward switch to be in a state of controlling the push motor, and at the moment, the forward switch and the backward switch are switched to respectively input forward rotation, reverse rotation and rotation angle instructions to the push motor driver; the pushing motor driver is used for supplying power to the pushing motor so as to control the working state of the pushing motor;

the pushing oil pump switching switch is used for switching the forward switch and the backward switch to be in a state of controlling the pushing oil pump and the pushing switching valve, and the forward switch is switched to transmit a power instruction to a motor driver of the pushing oil pump so as to control the extension amplitude of the pushing telescopic shaft; the backward switch controls the push reversing valve to reverse, when the backward switch is triggered, the push reversing valve is switched from an oil supply direction for driving the push telescopic shaft to extend to a retracting direction for driving the push telescopic shaft, and the backward switch also inputs a power instruction to a push oil pump motor driver so as to control the retracting amplitude of the push telescopic shaft;

the impact oil pump change-over switch is used for changing over a forward switch and a backward switch to be in a state of controlling the impact oil pump and the impact switching valve, and the forward switch is switched to transmit a power instruction to a motor driver of the impact oil pump so as to control the extension amplitude of the impact telescopic shaft; the backward switch controls the impact reversing valve to reverse, when the backward switch is triggered, the impact reversing valve is switched from the oil supply direction for driving the impact telescopic shaft to extend out to the retraction direction for driving the impact telescopic shaft, and the backward switch also inputs a power instruction to the motor driver of the impact oil pump so as to control the retraction amplitude of the impact telescopic shaft;

the torque oil pump change-over switch is used for changing over a forward switch and a backward switch to be in a state of controlling the torque oil pump and the torque switching valve, and at the moment, the forward switch is switched to transmit a power instruction to a torque oil pump motor driver so as to control the extension amplitude of the torque telescopic shaft; the reversing switch controls the torque reversing valve to reverse, when the reversing switch is triggered, the torque reversing valve is switched from the oil supply direction of the extension of the driving torque telescopic shaft to the retraction direction of the driving torque telescopic shaft, and the reversing switch also inputs a power instruction to the torque oil pump motor driver so as to control the retraction amplitude of the torque telescopic shaft.

7. The mechanical property experiment device of claim 1, which is characterized in that: the steel cylinder assembly comprises a steel cylinder, a positioning cylinder is fixed at one end of the steel cylinder, a filling cavity is arranged in the steel cylinder, a water inlet and outlet hole and a blocking notch groove are formed in the side wall of the steel cylinder, the blocking notch groove is communicated with one end of the water inlet and outlet hole, a blocking block and a diaphragm are sequentially arranged in the blocking notch groove from the filling cavity to the direction of the water inlet and outlet hole, a blocking blind hole and a plurality of penetrating water passing holes are formed in the blocking block, the diaphragm is a plastic film and covers one end face, provided with the blocking blind hole, of the blocking block to seal the end of the blocking block;

the inner part of the positioning cylinder is provided with a positioning inner cylinder, the outer wall of the positioning cylinder is provided with a clamping half groove, the inner wall of the positioning inner cylinder is provided with a clamping lug, and one end of the filling cavity communicated with the positioning inner cylinder is provided with a sealing plug;

the other end of the filling cavity is in sealing assembly with an end cover sealing column part of an end cover, the end cover is made of high-strength materials, and an end cover through hole capable of enabling an anchor cable to penetrate through is formed in the end cover;

the water inlet and outlet holes are assembled with the hole plugs in a sealing mode when water is not introduced, and the hole plugs are not in contact with or can not poke the diaphragms; when water needs to be fed into the water inlet and outlet hole, the water inlet and outlet hole is hermetically assembled with one end of a second water injection pipe, the other end of the second water injection pipe is hermetically assembled with one end of a first water injection pipe, the other end of the first water injection pipe is communicated with the inside of the water ring, a conical head is fixed at one end of the second water injection pipe, which is installed into the water inlet and outlet hole, and the end surface of the conical head, which has smaller diameter, faces the diaphragm;

the diameter of the positioning inner cylinder is smaller than that of the filling cavity, so that a limiting table is formed at the communication position of the positioning inner cylinder and the filling cavity, the limiting table is used for limiting the maximum axial position of a plugging plug which is arranged at one end of the filling cavity communicated with the positioning inner cylinder, a sealing plug column part is arranged on the plugging plug, and the sealing plug column part is in sealing assembly with the inner wall of the positioning inner cylinder.

8. The mechanical property experiment device of claim 7, which is characterized in that: the end part of the anchor cable is also arranged in an inner sleeve of the screw sleeve, the anchor cable and the screw sleeve are relatively fixed, an external thread is arranged on the outer wall of the screw sleeve, a first limit nut, a detection impeller and a second limit nut are sequentially screwed and sleeved on the screw sleeve from the lock sleeve to the axial direction of the closed end of the inner screw sleeve in a threaded manner, a plurality of blades which are uniformly distributed on the circumference of the detection impeller are arranged on the detection impeller, the blades are made of conductive magnetic materials, and the blades are opposite to the detection end of the second eddy current sensor;

a first eddy current sensor is arranged in the axial direction of the screw sleeve and near the end surface, the detection end of the first eddy current sensor is opposite to the end surface of the screw sleeve, and the screw sleeve is made of a conductive and magnetic material; and the first eddy current sensor and the second eddy current sensor are fixed on the movable side plate through the mounting plate.

9. The mechanical property experiment device of claim 1, which is characterized in that: the drawing instrument assembly comprises a supporting cylinder, a drawing oil cylinder, a semi-locking ring and a locking sleeve, wherein the supporting cylinder, the drawing oil cylinder and the locking sleeve are all sleeved on the anchor cable, and two end faces of the supporting cylinder are respectively pressed with one end face of the end cover and one end face of the drawing oil cylinder; the oil pump is used for supplying oil to the drawing oil cylinder, a groove is formed in the other end face of the drawing oil cylinder, the groove is assembled with a semi-circular part of the semi-locking ring, a semi-conical block part is further arranged on the semi-locking ring, a clamping semi-groove is formed in the semi-conical block part, and the two clamping semi-grooves clamp the anchor cable together;

the two half-cone block parts are closed to form a circular truncated cone body and are both arranged in the taper hole of the lock sleeve, and the half-cone block parts are arranged in the taper hole and then gradually move towards the taper hole under the action of the drawing oil cylinder; the supporting cylinder is provided with a plurality of penetrating observation grooves.

10. The mechanical property experiment device of claim 1, which is characterized in that: the clamping seat mechanism comprises a first fixing cover and a second fixing cover, the first fixing cover is fixed on the second side plate, a torsion disc is arranged in the second fixing cover, a torsion applying block is fixed on the side wall of the torsion disc, the torsion applying block is hinged with one end of a torsion telescopic shaft through a torsion hinge pin, and the other end of the torsion telescopic shaft is arranged in a torsion oil cylinder;

the torque oil cylinder is fixed on the second side plate, the torque disc is also provided with an impact oil cylinder, an impact telescopic shaft of the impact oil cylinder penetrates through the clamping seat and then is assembled and fixed with the impact column, the torque disc is also fixed with a rotating disc, and the rotating disc and the second side plate can be assembled in a circumferential rotating mode; one end of the torsion shaft is fixedly assembled with the rotating disc, and the other end of the torsion shaft penetrates through the second side plate and then is connected with an input shaft of the first torque sensor;

the clamping seat is arranged on the rotating disk and is relatively fixed with the rotating disk, the second fixing cover is arranged on the clamping seat, and a clamping seat limiting hole is formed in the clamping seat;

a seat disc is further fixed on the clamping seat, a convex ring is arranged on the seat disc, a driving screw cylinder is mounted on the convex ring, one end of the driving screw cylinder penetrates out of the convex ring and is fixedly assembled with the helical gear, the other end of the driving screw cylinder is positioned in a clamping guide groove on the inner side of the convex ring and is assembled with one end of a clamping screw rod in a threaded screwing manner, the other end of the clamping screw rod is fixedly assembled with one end of a clamping block, the clamping block is assembled in the clamping guide groove in a clamping manner and can slide in the clamping guide groove, a clamping convex block is arranged at one end of the clamping block, which is far away from the clamping screw rod, and the;

the clamping guide groove is composed of two clamping guide pieces, the clamping guide pieces are fixed on the seat disc, the helical gear is in meshing transmission with the helical gear part of the large gear, the large gear is also provided with a straight gear part, the straight gear part is in meshing transmission with the small gear, the small gear is fixed on the clamping output shaft, the clamping output shaft is installed in the clamping motor, and the clamping motor is installed on the clamping seat; the clamping output shaft is also connected with an input shaft of a second torque sensor;

the gear wheel is sleeved outside the gear shaft and can be circumferentially and rotatably assembled with the gear shaft, the gear shaft is arranged on the seat plate, and the gear wheel and the gear shaft are both arranged in the second fixed cover;

a through retaining hole is formed in the helical gear, a detection rod is fixed at one end of the clamping screw rod, which is installed in the driving screw barrel, one end of the detection rod penetrates through the retaining hole, and the end face of the detection rod is aligned to the detection end of a third eddy current sensor, the third eddy current sensor is fixed in a detection sleeve, and the detection sleeve is fixed on a second fixing cover;

the impact head is provided with a clamping groove, the clamping groove is assembled with the clamping convex block in a clamping mode, a fourth eddy current sensor is further installed inside the impact head, and the detection end of the fourth eddy current sensor is opposite to the end face of the anchor cable.

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