CN207232091U - Recovery type scene acoustic emission sensor - Google Patents

Abstract

The utility model discloses a kind of recovery type scene acoustic emission sensor, including acoustic emission probe, probe installing mechanism and the transport mechanism that the assembly of acoustic emission probe and probe installing mechanism is sent to setting position in the drilling of monitored rock mass；Probe installing mechanism includes housing, probe sleeve, spring spool, spring and fixed pulley assembly, probe sleeve is installed in housing guide cylinder, spring spool is fixed on probe sleeve both sides, it is mounted therein with spring, first rope one end in fixed pulley assembly is connected through being installed on the fixed pulley at the top of inner walls with probe sleeve upper surface end cap.The utility model is cooperated by the first rope and spring being arranged between housing and probe sleeve, can realize the control to the probe sleeve direction of motion, solves the problem that acoustic emission probe is effectively installed and coupled；Ensure the efficient coupling of acoustic emission probe and borehole wall, strengthen the monitoring to mine rock (body) stability and rock burst dynamic disaster and forecast reliability.

Description

Recovery type scene acoustic emission sensor

Technical field

The utility model belongs to rock (body) project security monitoring technical field in engineering construction, is related to a kind of recovery type Live acoustic emission sensor.

Background technology

Rock (body) deformation failure in engineering construction, particularly rock burst dynamic disaster, can directly jeopardize the safety of engineering Construction, or even devastating impact can be caused, therefore to rock (body) stability and rock burst dynamic disaster progress effectively monitoring and in advance Report, is one of important content of engineering safety construction.At present, a kind of important means of the sound emission as non-destructive monitoring, is used for The monitoring and forecast of rock (body) stability and rock burst dynamic disaster in engineering construction.

In underground engineering wall rock excavates process of construction, in order to the failure and deformation of surrounding rocks being likely to occur and dynamic disaster into Row Accurate Prediction, acoustic emission sensor need to be arranged in the form of three-dimensional spatial distribution in advance before engineering excavation monitored Country rock region, and the number of sensors arranged is more, and monitoring effect is relatively more accurate.

In specific implementation, it is necessary to before rock (body) excavation, drilled using drilling machine in stone (body), drilling depth Increase with engineering buried depth, monitored scope increase；But drilling is deeper, acoustic emission sensor installation is more difficult.At present, sound is sent out Sensor mounting means is penetrated mainly including following several：

(1) in engineering site, directly acoustic emission probe is put in the borehole, by residual liquid medium in drilling (such as Water) medium as signal transmission between rock mass and acoustic emission probe, the detectable signal received passes through line by acoustic emission probe Cable is transferred to ground monitoring system；But there are following drawback for this method：It is downward that 1. this implementation is appropriate only for direction Drilling, and for the fully horizontal or upward drilling for having certain angle, do not applied to due to being difficult to medium for storing；Even for Under drilling, it is still necessary to the rock mass for the surrounding that drills is relatively complete, thus avoid transmission medium from borehole fissure be lost in or ooze out, really Acoustic emission probe is protected to be in transmission medium all the time, but on-site actual situations are but relatively inaccessible to the requirement, so as to influence to monitor Effect；2. although the liquid between rock mass and acoustic emission probe can be as the couplant of signal transmission, the density of liquid General relatively low, its signal transmission effect with palisades not as effectively contacting received detection letter directly by acoustic emission probe Number.

(2) in order to ensure placing efficient coupling between acoustic emission probe and the wall of a borehole in the borehole, may be used also in engineering site Using the casting cement into drilling, acoustic emission probe and palisades are made to be cast for an entirety, although this method can solve Effective transmission problem of detectable signal, but still suffer from following defect：1. the acoustic emission probe after cast is not recyclable, cause to monitor Cost is excessive；If 2. finding acoustic emission probe no signal or poor signal after cast, it can not be checked or be adjusted, can only be again New acoustic emission probe is drilled and installs, it is excessive not only result in monitoring cost, and also results in extension project progress, or even delay Duration；3. injecting cement mortar into drilling, deeper because drilling, the slip casting effect of one side acoustic emission probe installation position is difficult to protect Barrier, it is possible that acoustic emission probe installation position fails the situation of effective slip casting so that cause acoustic emission probe not with palisades Efficient coupling and without monitoring signals；On the other hand drilling is deeper, and total contraction distortion amount after the theing cement solidifies of cast is bigger, with water The signal transmission cable for the acoustic emission probe that mud bonds together can bear pulling force because cement shrinkage deforms, and causing cannot be effective Transmission signal；4. the explosive in digging process is blown out, slip casting face may be made to relax with rock wall surface, cause what monitoring signals were transmitted Validity reduces；5. usually moister in drilling, cement slurry sets need longer cycle after cast, and the construction time limit can be caused to prolong It is long；And installation process is time-consuming, laborious, it is necessary to a series of specialty grouting equipments and slip casting personnel, thus further increase monitoring into This.

(3) another kind is achieved in that using simple secure mounting arrangements, acoustic emission probe is fixed on inside device, so Fixing device is sent to installation position with rigid non-movable metallic transmission bar afterwards, is ejected acoustic emission probe with pressure Contacted afterwards with drilling palisades, realize and fix, its advantage is to realize connecing for acoustic emission probe and palisades in the case of non-slip casting cast Touch, but still have the following disadvantages：1. this mode since secure mounting arrangements and the distance between borehole wall are close, needs Want secure mounting arrangements to be essentially concentric structure with drilling, and need hole wall smooth, but these requirements are difficult to protect in practice of construction Barrier；2. since secure mounting arrangements size is larger, the drilling being relatively large in diameter is only applicable to, causes the cost rise that drills；It is 3. whole Transmission pole and erecting device are to be inserted into by hardness of exerting oneself in drilling in the borehole, and not only frictional force is big, cable of easily grinding away Or acoustic emission probe, it is also easy to be snapped in drilling, can not send to need position to be mounted；4. due to being by secure mounting arrangements By external force, during its hardness insertion is drilled, therefore installation process is not only time-consuming and laborious, but also work efficiency is extremely low；5. because boring Hole hole wall is cylindrical surface, and acoustic emission probe end face is plane, how to ensure acoustic emission probe end face effectively and borehole wall Coupling, and the problem solved is needed in practical application.

Based on drawback and defect present in above-mentioned various implementations, cause acoustic emission detection in rock (body) stability And it is subject to a definite limitation during the application of rock burst dynamic disaster monitoring.

Thus, it is how convenient, effectively by acoustic emission probe installation in the borehole, and have the acoustic emission probe after installation Effect is coupled with hole wall, is still the difficult point of current field monitoring and research, is lacked relevant test method and technical support.

Utility model content

The purpose of this utility model is intended to be directed to deficiency of the prior art, there is provided a kind of recovery type scene voice sending sensor Device, to make acoustic emission sensor easy for installation, realizes acoustic emission probe and borehole wall efficient coupling, it is ensured that acoustic emission probe The validity of detectable signal is simultaneously easy to recycling.

Acoustic emission sensor described in the utility model, including acoustic emission probe, probe installing mechanism and by acoustic emission probe The transport mechanism of setting position in monitored rock body drilled, the number of acoustic emission probe are sent to the assembly for installing mechanism of popping one's head in Amount is at least one, and the quantity for installing mechanism of popping one's head in is identical with the quantity of acoustic emission probe；The probe installing mechanism includes shell Body, probe sleeve, end cap, guide rod, spring spool, spring, baffle, pin, fixed pulley assembly and connection component；The housing For the thin-wall circular cylinder of both ends open, framework and guide cylinder for being combined with probe sleeve, institute are provided with the endoporus of housing The top that framework is located at inner walls is stated, the guide cylinder is located at the bottom of inner walls, and guide cylinder endoporus is through housing wall Through hole and barrel on be provided with the first pin hole, the center line of framework and the center line of guide cylinder point-blank and perpendicular to The center line of housing；The probe sleeve is lower end closed, the cylinder of upper end opening, the endoporus and acoustic emission probe of probe sleeve Endoporus for clearance fit, shape and guide cylinder is clearance fit, and the lower face of probe sleeve is the drilling with monitored rock mass The matched arc surface of radian, lower section are provided with the second pin hole combined with guide cylinder, and upper end barrel is provided with to be visited for sound emission One or two notch that the cable connector of head stretches out, if two notches, two notches are in relative to the center line of probe sleeve Axial symmetry is distributed；The spring spool is the cylinder of both ends open, and spring spool lower end inner wall is provided with and the baffle combination Card slot and be provided with baffle outlet, spring spool quantity be two, two spring spools are in axis relative to the center line of probe sleeve It is symmetrical to be fixed on probe sleeve outer wall, and the center of the line that project in horizontal plane of the center line of two spring spools and the notch Line is vertical in the projection of horizontal plane；The connection component is two sets, is separately mounted to the both ends of housing；Acoustic emission probe is installed on In probe sleeve, the notch that its cable connector is set from probe sleeve barrel stretches out；The probe sleeve of acoustic emission probe is installed It is placed in housing, its underpart section is inserted into guide cylinder set by housing and its lower end is located at outside housing, and its upper part section is located at housing In set framework, the placement orientation of probe sleeve should make the cable connector of acoustic emission probe towards one end of housing；End cap covers It is detachable connection in probe sleeve upper surface and with probe sleeve；Baffle is two, and two baffles are separately mounted to two Card slot set by spring spool is interior and is connected with the 3rd rope；Guide rod is two, one end of two guide rods respectively with housing institute If the both sides plate body connection of framework, the other end are inserted into two spring spools respectively；Spring is two, and two springs are set with On two guide rods, plate body of their one end respectively with framework corresponding site is connected, their other end respectively with accordingly Baffle contact；Fixed pulley assembly includes fixed pulley and the first rope, and fixed pulley is installed on the top of inner walls and is located at frame In vivo, one end of the first rope and the centre of end cap connect, and the other end stretches out housing after fixed pulley；Pin is connected with Second rope, pin are inserted into the first pin hole of the guide cylinder and the second pin hole of the probe sleeve by probe sleeve with being oriented to The spring is set to be in stretching or free state after cylinder connection；Transport mechanism is connected with the connection component on housing.

Above-mentioned recovery type scene acoustic emission sensor, the shape of probe sleeve and the endoporus of guide cylinder are clearance fit, from And ensure the direction of motion of the probe sleeve in housing and do not shift；In addition, set framework hole size is more than spy in housing The appearance and size of headgear cylinder, so as to reserve the space of abundance for the movement of probe sleeve.

Above-mentioned recovery type scene acoustic emission sensor, installing the second rope and the 3rd rope respectively on pin and baffle is For the ease of being extracted by the sleeve on lower spring spool and for the pin of fixed lower guide cylinder and probe sleeve；This The first rope, the second rope and the 3rd rope that utility model uses are steel wire rope.

Above-mentioned recovery type scene acoustic emission sensor, for the ease of pulling the first rope, the fixed pulley is in inner walls When the installation site at top should make the first rope in running order its with end cap connecting pin between fixed pulley contact site The angle α of section and probe sleeve center line be 0 °~45 °, preferably 30 °~45 °.In addition, in order to facilitate the operation, Ke Yizai First rope and the 3rd rope are connected to earth's surface together in a rope；In order to ensure that the drawing of rope order (first pulls the 3rd Rope withdraws from baffle, then pulls the first rope and withdraw probe), before the first rope and the 3rd rope converge, the length of the first rope Degree need to be more than 3 times of the 3rd rope.

Above-mentioned recovery type scene acoustic emission sensor, for the ease of installation, the housing is combined by two circular cylinders Form；The utility model is to realize being connected for two circular cylinders by connection sheet and screw, and this connection mode is more firm Though it is reliable, this is not unique implementation, and it is other that those skilled in the art can also select this area to disclose Connection mode, which is realized, to be connected, such as two circular cylinders are connected etc. by clamping or welding manner realization.

Above-mentioned recovery type scene acoustic emission sensor, the cable for the ease of will be connected with acoustic emission probe is drawn, described The notch stretched out for acoustic emission probe cable connector that probe sleeve upper end barrel is set is U type slot, and the width of U type slot Slightly larger than the diameter of acoustic emission probe cable connector.

Above-mentioned recovery type scene acoustic emission sensor, can be with order to further improve acoustic emission probe signal transmission effect Couplant is coated in the lower face that acoustic emission probe is contacted with probe sleeve bottom, so that acoustic emission probe lower face and probe sheath The bottom of cylinder effectively contacts；The couplant is butter, vaseline etc..

Above-mentioned recovery type scene acoustic emission sensor, by nut and at least, two secondary connecting brackets form connection component, respectively connect The one end for connecing stent is uniformly distributed around nut outer wall and is hinged with nut outer wall, and the other end and the housing of each connecting bracket are consolidated Even；This connection component can be such that installing mechanism realizes within the specific limits to rotate by a small margin, so as to be further ensured that housing top Portion and probe sleeve bottom are contacted with borehole wall efficient coupling.

Above-mentioned recovery type scene acoustic emission sensor, is treated for the ease of the installing mechanism for being provided with acoustic emission probe is sent into The setting position of drilling is installed, is reduced in manual operation difficulty and transmit process caused by frictional force is excessive to cable or spy The abrasion of head installing mechanism, the transport mechanism are composed of driven rod, connecting rod and roll wheel assembly；The one of the driven rod End centre is equipped with connecting screw hole, and other end centre is equipped with connecting hole and the hole wall of connecting hole and is provided with the first fastening Screw, the internal thread type and size of the connecting screw hole and the internal thread type and size phase of nut in the connection component Together；The connecting rod is made of thread segment and column body segment, the connection and driven rod for driven rod and the connection component it Between connection, the external screw thread type and size of the thread segment and the internal thread type and size of connecting screw hole set by driven rod Match somebody with somebody, the shape and size of the column body segment are matched with the shape and size of connecting hole set by driven rod, when the column body segment of connecting rod Fixed after being inserted into the connecting hole of driven rod by the first trip bolt；The roll wheel assembly includes roller, U-shaped installing plate, wheel shaft With roller sleeve, the quantity of roller is two or three, and the quantity of U-shaped installing plate and wheel shaft is identical with the quantity of roller, each rolling Wheel is separately mounted on corresponding wheel shaft, and the both ends of each wheel shaft are separately mounted on the biside plate of corresponding U-shaped installing plate, are made each Roller respectively between the biside plate of corresponding U-shaped installing plate, the endoporus of roller sleeve be more than the appearance and size of driven rod and It is provided with the second trip bolt on barrel, each U-shaped installing plate is respectively fixedly connected on the outer wall of roller sleeve, when U-shaped installing plate is At two, the angle between two U-shaped installing plate center lines is 120 °~135 °, when U-shaped installing plate is three, two of which The center line of U-shaped installing plate point-blank, the center line of remaining next U-shaped installing plate with the U-shaped installing plate of above-mentioned two The angle of heart line is 90 °；Every driven rod configures at least a set of roll wheel assembly, and the roller housing jacket casing of roll wheel assembly is mounted in transmission Fixed on bar and by the second trip bolt.

Above-mentioned recovery type scene acoustic emission sensor, in order to send probe installing mechanism to deeper drilling, driven rod Quantity can be more, and two neighboring driven rod is connected by connecting rod, be by the first fastening between driven rod and connecting rod Screw is connected；During installation and removal, this connection mode need not rotate two neighboring driven rod, on the one hand may be used Make to produce friction between probe installing mechanism and drilling to avoid because driven rod rotates, on the other hand can be to avoid because of driven rod Wind mutually between more ropes for rotating and causing to be connected with position-limitting pin and produce maloperation.

Above-mentioned recovery type scene acoustic emission sensor, for the ease of roll wheel assembly, driven rod and connecting rod three are fixed Together, the first trip bolt and the second trip bolt can be same trip bolt；, can be first by the tight of driven rod during installation Gu screw hole aligns with the fastening screw hole on roller sleeve, trip bolt is recycled through both fastening screw holes, and make fastening spiral shell Screw top lives the column body segment of connecting rod, roll wheel assembly, driven rod and connecting rod three is fixed together.

Above-mentioned recovery type scene acoustic emission sensor, the quantity for installing mechanism of popping one's head in is identical with acoustic emission probe quantity, can According to actual needs, multiple acoustic emission probes, the direction of different acoustic emission probes are arranged along borehole axial in same drilling It can be configured according to actual monitoring requirement；Two neighboring acoustic emission sensor is attached by transport mechanism.

The operation principle of recovery type scene described in the utility model acoustic emission sensor：The acoustic emission sensor utilizes first Rope and spring coordinate, it is possible to achieve the control to housing and the probe sleeve direction of motion；In original state, the guiding of housing Cylinder is connected with probe sleeve by pin, and the assembly overall dimensions of acoustic emission probe and probe installing mechanism are less than brill to be installed Pore size, so that the assembly of acoustic emission probe and installing mechanism of popping one's head in can move freely in drilling, spring pocket at this time Spring in cylinder is in compressive state；Pin is extracted using the second rope, after cancelling the connection between housing and probe sleeve, The pressure to spring is then reduced, under the action of spring restoring force, housing and probe sleeve are to opposite both direction It is mobile, case top and probe sleeve lower face is in close contact respectively with drill hole inner wall, therefore can ensure acoustic emission probe with The efficient coupling of borehole wall, meets the operating condition of acoustic emission probe signal monitoring；After monitoring, the 3rd is utilized Rope will be extracted installed in the baffle set by probe sleeve in card slot, spring is in free state, and pull the first rope, be made Probe sleeve lower end is separated with drill hole inner wall, so as to make the assembly overall dimensions of acoustic emission probe and installing mechanism of popping one's head in again Less than bore size, in order to recycle acoustic emission probe.

Compared with prior art, the utility model has the advantages that：

1st, recovery type scene described in the utility model acoustic emission sensor, by being arranged between housing and probe sleeve First rope and spring cooperate, it can be achieved that control to the probe sleeve direction of motion, solves acoustic emission probe and effectively install With the problem of coupling；After acoustic emission probe and probe installing mechanism assembling, probe sleeve is fixed in housing guide cylinder, at spring In compressive state, so that the assembly size of acoustic emission probe and probe installing mechanism is less than bore size, bored easy to it Transmitted in hole, after the assembly of acoustic emission probe and probe installing mechanism is sent to precalculated position, extracts connection housing and lead To cylinder and the pin of probe sleeve, reduce the compression to spring, make housing and probe sleeve under the effect of spring restoring force Mutually opposite direction movement, makes case top and probe sleeve bottom are in close contact with borehole wall, so as to ensure sound emission The efficient coupling of probe and borehole wall.

2nd, recovery type scene described in the utility model acoustic emission sensor, case top are and drilling with probe sleeve bottom The arc coupling surface of hole wall adaptation, it is ensured that the coupling effect of acoustic emission probe and borehole wall, so as to strengthen steady to rock (body) Qualitative and rock burst dynamic disaster monitoring and forecast reliability.

3rd, recovery type scene described in the utility model acoustic emission sensor, after monitoring, lower bullet is installed on by extracting The baffle of spring sleeve, can release the elastic acting force of spring, then under the draw of the first rope, probe sleeve lower end Face is separated with drill hole inner wall, in order to the recycling of acoustic emission probe, so as to fulfill the reuse of acoustic emission sensor, saves prison Survey cost.

4th, recovery type scene described in the utility model acoustic emission sensor, it is used probe installing mechanism transmit process in Size is less than bore size, and the driven rod of transport mechanism can be formed by connecting by more, not only easy for installation, also from drilling The influence of depth and orientation, has the wider scope of application.

5th, recovery type scene described in the utility model acoustic emission sensor, used transport mechanism are designed with transmission rolling Wheel, to realize the roller transfer in installation, removal process, so as to overcome the friction of borehole wall in installation, recycling transmit process Power influences, it is ensured that the integrality of acoustic emission sensor and transmission cable.

6th, recovery type scene described in the utility model acoustic emission sensor, is fixed between the connecting bracket of housing and nut It is rotation connection, probe installing mechanism can be made to realize within the specific limits and rotated by a small margin, so as to be further ensured that housing top Portion is contacted with probe sleeve bottom with borehole wall efficient coupling.

7th, recovery type scene described in the utility model acoustic emission sensor, also with simple in structure, installation, convenient disassembly Feature, reaching reduces labor intensity, can save a large amount of human costs.

8th, recovery type scene described in the utility model acoustic emission sensor, in order to meet different demands, can pass through more Multiple probe installing mechanisms are connected the purpose for arranging multiple acoustic emission probes in same drilling with realization by driven rod, Each acoustic emission probe end face is set to be determined respectively according to monitoring needs, so as to improve to rock (body) stability and rock burst power The monitoring efficiency of disaster.

Brief description of the drawings

Fig. 1 is the structure diagram of recovery type scene described in the utility model acoustic emission sensor.

Fig. 2 is acoustic emission probe and probe installing mechanism in the acoustic emission sensor of recovery type scene described in the utility model Combination diagram

Fig. 3 is the A-A sectional views of Fig. 2.

Fig. 4 is the structure diagram of recovery type scene acoustic emission sensor middle casing described in the utility model..

Fig. 5 is the B-B sectional views of Fig. 4.

Fig. 6 is the schematic diagram of acoustic emission probe in the acoustic emission sensor of recovery type scene described in the utility model.

Fig. 7 is the top view of Fig. 6.

Fig. 8 is the structure diagram of probe sleeve in probe installing mechanism.

Fig. 9 is the nut of connection component and the connected mode schematic diagram of connecting bracket in probe installing mechanism.

Figure 10 is the structure diagram of driven rod in transport mechanism.

Figure 11 is the structure diagram of connecting rod in transport mechanism.

Figure 12 is the structure diagram of roll wheel assembly in transport mechanism.

Figure 13 is showing when the probe installing mechanism described in the utility model for being provided with acoustic emission probe is in installment state It is intended to.

Figure 14 is showing when the probe installing mechanism described in the utility model for being provided with acoustic emission probe is in monitoring state It is intended to.

Figure 15 is showing when the probe installing mechanism described in the utility model for being provided with acoustic emission probe is in recycling state It is intended to.

Wherein：1st, housing, 1-1, circular cylinder, 1-2, connection sheet, 1-3, framework, 1-4, guide cylinder, 1-5, the first pin Hole, 1-6, fixed pulley, 2, probe sleeve, 2-1, notch, 2-2, the second pin hole, 2-3, spring spool, 2-4, card slot, 3, sound emission Probe, 3-1, cable connector, the 4, first rope, 5, end cap, 6, guide rod, 7, spring, 8, baffle, 9, connecting bracket, 10, spiral shell Mother, the 11, second rope, 12, pin, the 13, the 3rd rope, 14, connecting rod, 14-1, thread segment, 16-2, column body segment, 15, transmission Bar, 15-1, connecting hole, 15-2, connecting screw hole, 15-3, the first trip bolt, 16, roll wheel assembly, 16-1, roller are 16-2, U-shaped Installing plate, 16-3, wheel shaft, 16-4, roller sleeve, 16-5, the second trip bolt.

Embodiment

Clear, complete description is carried out to the technical solution of the utility model by the following examples and with reference to attached drawing, is shown So, described embodiment is only the part of the embodiment of the utility model, instead of all the embodiments.It is new based on this practicality Embodiment in type, those of ordinary skill in the art's obtained all other reality on the premise of creative work is not made Example is applied, belongs to the scope that the utility model is protected.

Recovery type scene provided in this embodiment acoustic emission sensor, as shown in Figure 1, being installed by acoustic emission probe 3, probe Mechanism and by acoustic emission probe with probe installing mechanism assembly be sent to setting position in the drilling of monitored rock mass Transport mechanism；The quantity of probe installing mechanism and acoustic emission probe 3 is one.

As shown in Figure 6, Figure 7, above-mentioned acoustic emission probe 3 is cylindrical structural, and extend sideways out cable connector 3-1, sound hair Penetrate probe end face and be coated with butter.

As shown in Figures 2 and 3, installing mechanism of popping one's head in includes housing 1, probe sleeve 2, end cap 5, guide rod 6, spring spool 2-3, spring 7, baffle 8, pin 12, fixed pulley assembly and connection component.Spring 7 in the present embodiment is circumferential along probe sleeve 2 It is symmetrical arranged, quantity is two, and 8 quantity of baffle is consistent with 7 quantity of spring.

As shown in Figures 2 to 5, above-mentioned housing 1 is the thin-wall circular cylinder of both ends open, is led to by two circular cylinder 1-1 Cross connection sheet 1-2 and screw be formed by fixedly connecting, case top be with the matched arc surface of radian that drills, be provided with its endoporus For the framework 1-3 and guide cylinder 1-4 combined with probe sleeve 2；Framework 1-3 is located at the top of inner walls；Guide cylinder 1-4 In the bottom of inner walls, guide cylinder endoporus is that the first pin hole 1-5 is provided with the through hole and barrel of housing wall；Framework 1- 3 center line is with the center line of guide cylinder 1-4 point-blank and perpendicular to the center line of housing；Framework 1-3 both sides are plate Body.

As shown in Fig. 2, Fig. 3 and Fig. 8, probe sleeve 2 is lower end closed, the cylinder of upper end opening, its lower face is and quilt Monitor the matched arc surface of drilling radian of rock mass, the endoporus of probe sleeve and acoustic emission probe 3 are clearance fit, shape with leading It is clearance fit to the endoporus of cylinder 1-4, the lower section of probe sleeve is provided with the second pin hole 2-2 combined with guide cylinder 1-4, on End barrel is provided with a U type slot 2-1 of the cable connector stretching for acoustic emission probe；Spring spool 2-3 is both ends open Cylinder, spring spool lower end inner wall be provided with the card slot 2-4 combined with baffle 8 and be provided with baffle outlet, spring spool 2-3 numbers Measure as two, two spring spools are axisymmetricly fixed on probe sleeve outer wall, and two springs relative to the center line of probe sleeve The center line of sleeve is vertical in the projection of horizontal plane with the center line of notch 2-1 in the line that horizontal plane projects.

As shown in Figures 3 to 5, above-mentioned fixed pulley assembly includes fixed pulley 1-6 and the first rope 4, and fixed pulley is installed on shell The top of internal wall is simultaneously located in framework 1-3, and one end of the first rope 4 is connected the other end with the centre of end cap 5 by fixed Housing is stretched out after pulley；When installation sites of the fixed pulley 1-6 at the top of inner walls should make the first rope in running order its Angle (α) with 5 connecting pin of end cap to the section between fixed pulley contact site and probe sleeve center line is 30 °~45 °.

For the ease of operation baffle 8 and pin 12, the probe installing mechanism in the present embodiment further comprises the second rope 11 and the 3rd rope 13, the second rope 11 be fixedly connected with pin 12, the 3rd rope 13 is fixedly connected with baffle 8；The present embodiment In the first rope 4, the second rope 11 and the 3rd rope 13 be steel wire rope.In order to facilitate the operation, can be by the first rope 4 and Three ropes 13 are connected to earth's surface together in a rope；In order to ensure that the drawing of rope order (first pulls the 3rd rope 13 and withdraws from gear Plate, then pull the first rope 4 and withdraw probe), before the first rope 4 and the 3rd rope 13 converge, the length of the first rope 4 is the More than 3 times of three ropes.

As shown in Fig. 3, Fig. 9, above-mentioned connection component is two sets, is separately mounted to the both ends of housing 1；Connection component is by nut 10 and two secondary connecting bracket 9 form, per pair connecting bracket in quantity be two；9 both ends of connecting bracket are to two opposite directions Bending process goes out to be suitable for the structure being connected with housing 1 and nut 10；9 one end of connecting bracket is welded in the inner side of housing 1, the other end It is hinged by rivet and 10 outer wall of nut.Transport mechanism can be installed respectively at 1 both ends of housing by connection component, so not only Easy to transmission of the acoustic emission sensor in drilling, multiple probe installing mechanisms can also be connected by driven rod, with Realize the purpose that multiple acoustic emission probes is arranged in same drilling.

As shown in Figure 10 to Figure 12, above-mentioned transport mechanism is composed of driven rod 15, connecting rod 14 and roll wheel assembly 16； One end centre of driven rod 15 is equipped with connecting screw hole 15-2, and other end centre is equipped with connecting hole 15-1 and connecting hole The first trip bolt 15-3, internal thread type and size and the nut 10 in the connection component of connecting screw hole are provided with hole wall Internal thread type it is identical with size；Connecting rod 14 is made of thread segment 14-1 and column body segment 14-2, for driven rod with it is described Connection between the connection of connection component and driven rod；Connect set by the external screw thread type and size of thread segment 14-1 and driven rod Meet internal thread type and the size matching of screw hole 15-2, connecting hole 15-1 set by the shape and size and driven rod of column body segment 14-2 Shape and size matching, when connecting rod column body segment 14-2 insertion driven rod connecting hole 15-1 after pass through the first trip bolt 15-3 is fixed.Roll wheel assembly 16 includes roller 16-1, U-shaped installing plate 16-2, wheel shaft 16-3 and roller sleeve 16-4；Roller 16-1 Quantity be three, U-shaped installing plate 16-2 and the quantity of wheel shaft 16-3 and the quantity of roller are identical, and each roller 16-1 is installed respectively On corresponding wheel shaft, the both ends of each wheel shaft 16-3 are separately mounted on the biside plate of corresponding U-shaped installing plate 16-2, make each rolling For wheel respectively between the biside plate of corresponding U-shaped installing plate, the endoporus of roller sleeve 16-4 is more than the shape ruler of driven rod 15 It is provided with the second trip bolt 16-5 on very little and barrel, each U-shaped installing plate is respectively fixedly connected on the outer wall of roller sleeve 16-4, its In two U-shaped installing plates center line point-blank, the center line of remaining next U-shaped installing plate and the U-shaped peace of above-mentioned two The angle of loading board center line is 90 °.Every driven rod 15 configures a set of roll wheel assembly 16, the roller sleeve 16-4 of roll wheel assembly It is sleeved on driven rod 15 and is fixed by the second trip bolt 16-5.

As shown in Figure 1 to Figure 3, the assembling mode of above-mentioned recovery type scene acoustic emission sensor is：Acoustic emission probe 3 is pacified Loaded in probe sleeve 2, its one end coated with butter is contacted with probe sleeve bottom, its cable connector 3-1 is from probe sleeve The notch 2-1 that barrel is set stretches out；The probe sleeve 2 for being provided with acoustic emission probe is placed in housing 1, its underpart section insertion shell Guide cylinder 1-4 set by body and its lower end is located at outside housing, its upper part section is located at set by housing in framework 1-3, probe sleeve 2 The cable connector 3-1 of acoustic emission probe should be made towards one end of housing by placing orientation；End cap 5 is covered in 2 upper surface of probe sleeve And with probe sleeve it is detachable connection；Baffle 8 is two, and two baffles are separately mounted to card slot set by two spring spools 2-4 is interior and is connected with the 3rd rope 13；Guide rod 6 is two, one end of two guide rods respectively with housing set by framework 1-3 Both sides plate body connection, the other end are inserted into two spring spools respectively；Spring 7 is two, and two springs are set in two On guide rod, plate body of their one end respectively with framework corresponding site is connected, their other end respectively with corresponding baffle 8 Contact；One end of first rope 4 is connected with the centre of end cap 5, and the other end is after the fixed pulley installed in inner walls Stretch out housing；The pin 12 for being connected with the second rope 11 is inserted into the first pin hole 1-5 of guide cylinder and the second pin hole of probe sleeve 2-2, so that probe sleeve be connected with guide cylinder, after acoustic emission probe is combined with probe installing mechanism, 7 in compression shape at spring State；Rear connecting rod column body segment 14-2 insertion transmission lever attachment hole 15-1 and fixed by the first trip bolt 15-3, by roller Component roller wheel sleeve 16-4 is sleeved on driven rod 15, and is fixed with the second trip bolt 16-5, then by connecting rod thread segment 14- 1 combines with nut 10, is connected so as to fulfill probe installing mechanism with transport mechanism, completes acoustic emission sensor assembling.

As shown in Fig. 1, Figure 13, Figure 14, the use process of recovery type scene acoustic emission sensor is：By acoustic emission probe with The assembly of probe installing mechanism is put into drilling, promotes driven rod 15, by the combination of acoustic emission probe and probe installing mechanism Body send the position monitored to needs, pulls the second rope 11, pin 12 is extracted from the first pin hole 1-5 and the second pin hole 2-2, The pressure that spring 7 is subject to reduces, and under the elastic restoring force effect of spring 7, housing 1 moves in the opposite direction with probe sleeve 2 It is dynamic, so that the top of housing 1 and the lower face of probe sleeve 2 are in close contact with borehole wall and compress hole wall respectively；Due to The top and 2 lower face of probe sleeve of housing 1 are the arc surface being adapted to drilling hole wall-shaped face, thereby may be ensured that sound emission Pop one's head in and contacted with the effective of borehole wall, it is ensured that acoustic emission probe received signal validity and stability；In addition, it is fixed on shell It is rotation connection between the connecting bracket 9 and nut 10 of body 1, acoustic emission sensor can be made to be realized in installation process and turned by a small margin It is dynamic, it is ensured that the top and probe sleeve lower face of housing 1 are effectively contacted with borehole wall.Acoustic emission probe is positioned over drilling setting Behind position, acoustic emission probe can be monitored rock (body) situation in engineering construction, and monitoring signals are passed through cable Ground handling station is transmitted to, and monitoring signals are shown by the computer at ground handling station.

As shown in figure 15, after monitoring process, the 3rd rope 13 is pulled, baffle 8 is detached from card slot 2-4, is made Two springs 7 are in free state, and pull the first rope 4, then separate probe sleeve lower face with drill hole inner wall, so that again The secondary assembly overall dimensions for making acoustic emission probe and installing mechanism of popping one's head in are less than bore size, can be sent out sound by driven rod 15 The assembly for penetrating probe and installing mechanism of popping one's head in is pulled out from drilling so that acoustic emission probe and its installing mechanism can be recovered Recycle.

Furthermore, it is possible to multiple driven rods 15 are sequentially connected by connecting rod 14, to reach drilling depth requirement, so that not Influenced by mine rock (body) drilling depth and orientation, expand its scope of application.

Welding attachment in the present embodiment, can also be other by bolt attachment, integral type curing molding etc. Attachment substitutes；Screw attachment, can also be substituted by other modes that are removably fixed with such as buckle, magnetic coupling.

Claims (10)

1. a kind of recovery type scene acoustic emission sensor, including acoustic emission probe (3), it is characterised in that further include probe fitting machine Structure and the conveyer that the assembly of acoustic emission probe and probe installing mechanism is sent to setting position in monitored rock body drilled Structure, the quantity of acoustic emission probe (3) are at least one, and the quantity for installing mechanism of popping one's head in is identical with the quantity of acoustic emission probe；

It is described probe installing mechanism include housing (1), probe sleeve (2), end cap (5), guide rod (6), spring spool (2-3), Spring (7), baffle (8), pin (12), fixed pulley assembly and connection component；The housing (1) is the thin-walled cylinder of both ends open Body, framework (1-3) and guide cylinder (1-4) for being combined with probe sleeve (2), the framework position are provided with the endoporus of housing In the top of inner walls, the guide cylinder (1-4) is located at the bottom of inner walls, and guide cylinder endoporus is through the logical of housing wall The first pin hole (1-5) is provided with hole and barrel, the center line of framework and the center line of guide cylinder are point-blank and vertical In the center line of housing；The probe sleeve (2) is lower end closed, the cylinder of upper end opening, and endoporus and the sound of probe sleeve are sent out It is clearance fit to penetrate the endoporus that probe (3) is clearance fit, shape and guide cylinder (1-4), and the lower face of probe sleeve is and quilt The matched arc surface of drilling radian of rock mass is monitored, lower section is provided with the second pin hole (2-2) combined with guide cylinder (1-4), Upper end barrel is provided with one or two notch (2-1) of the cable connector stretching for acoustic emission probe, if two notches, two Notch is axisymmetricly distributed relative to the center line of probe sleeve；The spring spool (2-3) be both ends open cylinder, spring Sleeve lower end inner wall is provided with the card slot (2-4) combined with the baffle (8) and is provided with baffle outlet, spring spool (2-3) number Measure as two, two spring spools are axisymmetricly fixed on probe sleeve outer wall, and two springs relative to the center line of probe sleeve The center line of sleeve is vertical in the projection of horizontal plane with the center line of the notch (2-1) in the line that horizontal plane projects；It is described Connection component is two sets, is separately mounted to the both ends of housing (1)；

Acoustic emission probe (3) is installed in probe sleeve (2), the notch that its cable connector (3-1) is set from probe sleeve barrel (2-1) stretches out；The probe sleeve (2) for being provided with acoustic emission probe is placed in housing (1), is led set by the section insertion housing of its underpart It is located to cylinder (1-4) and its lower end outside housing, its upper part section is located in framework (1-3) set by housing, and probe sleeve (2) are put The cable connector (3-1) of acoustic emission probe should be made towards one end of housing by putting orientation；End cap (5) is covered on probe sleeve (2) End face and be detachable connection with probe sleeve；Baffle (8) is two, and two baffles are separately mounted to two spring spool institutes If card slot (2-4) is interior and is connected with the 3rd rope (13)；Guide rod (6) is two, one end of two guide rods respectively with housing The both sides plate body connection of set framework (1-3), the other end are inserted into two spring spools respectively；Spring (7) is two, two bullets Spring is set on two guide rods, and plate body of their one end respectively with framework corresponding site is connected, their other end Contacted respectively with corresponding baffle；Fixed pulley assembly includes fixed pulley (1-6) and the first rope (4), and fixed pulley (1-6) is installed on The top of inner walls is simultaneously interior positioned at framework (1-3), and one end of the first rope (4) is connected with the centre of end cap (5), another Housing is stretched out at end after fixed pulley；Pin (12) is connected with the second rope (11), and pin is inserted into the first pin of the guide cylinder The second pin hole (2-2) of hole (1-5) and the probe sleeve makes the spring be in pressure after probe sleeve is connected with guide cylinder Contracting state；Transport mechanism is connected with the connection component on housing.

2. recovery type scene acoustic emission sensor according to claim 1, it is characterised in that the connection component is by nut (10) formed with least two secondary connecting brackets (9), one end of each connecting bracket is uniformly distributed around nut (10) outer wall and and spiral shell Female outer wall is hinged, and the other end and the housing of each connecting bracket are connected.

3. recovery type scene acoustic emission sensor according to claim 2, it is characterised in that the transport mechanism is by driven rod (15), connecting rod (14) and roll wheel assembly (16) are composed；

One end centre of the driven rod (15) is equipped with connecting screw hole (15-2), and other end centre is equipped with connecting hole The first trip bolt (15-3), the internal thread type and size of the connecting screw hole are provided with (15-1) and the hole wall of connecting hole It is identical with the internal thread type of nut (10) and size in the connection component；

The connecting rod (14) is made of thread segment (14-1) and column body segment (14-2), for driven rod and the connection component Connection between connection and driven rod, is connected spiral shell set by the external screw thread type and size of the thread segment (14-1) and driven rod Internal thread type and the size matching in hole (15-2), connecting hole set by the shape and size and driven rod of the column body segment (14-2) The shape and size matching of (15-1), passes through the after connecting hole (15-1) of column body segment (14-2) the insertion driven rod of connecting rod One trip bolt is fixed；

The roll wheel assembly (16) includes roller (16-1), U-shaped installing plate (16-2), wheel shaft (16-3) and roller sleeve (16- 4), the quantity of roller (16-1) is two or three, U-shaped installing plate (16-2) and the quantity of wheel shaft (16-3) and the quantity of roller Identical, each roller (16-1) is separately mounted on corresponding wheel shaft, and the both ends of each wheel shaft (16-3) are separately mounted to corresponding U-shaped On the biside plate of installing plate (16-2), make each roller respectively between the biside plate of corresponding U-shaped installing plate, roller sleeve The endoporus of (16-4), which is more than on the appearance and size of driven rod (15) and barrel, is provided with the second trip bolt, each U-shaped installing plate point It is not fixed on the outer wall of roller sleeve (16-4), when U-shaped installing plate is two, between two U-shaped installing plate center lines Angle is 120 °~135 °, and when U-shaped installing plate is three, the center line of the U-shaped installing plate of two of which is point-blank, remaining The center line of next U-shaped installing plate and the angle of the U-shaped installing plate center line of above-mentioned two are 90 °；

Every driven rod (15) configures at least a set of roll wheel assembly (16), and the roller sleeve (16-4) of roll wheel assembly is sleeved on transmission It is on bar (15) and fixed by the second trip bolt (16-5).

4. the recovery type scene acoustic emission sensor according to any claim in claims 1 to 3, it is characterised in that described Housing (1) is composed of two circular cylinders (1-1).

5. the recovery type scene acoustic emission sensor according to any claim in claims 1 to 3, it is characterised in that described It is connected with end cap (5) when installation site of the fixed pulley (1-6) at the top of inner walls should make the first rope in running order The angle (α) of end to the section between fixed pulley contact site and probe sleeve center line is 0 °~45 °.

6. recovery type scene acoustic emission sensor according to claim 4, it is characterised in that the fixed pulley (1-6) is in housing When installation site at the top of inner wall should make the first rope in running order its with end cap (5) connecting pin to fixed pulley contact site The angle (α) of section and probe sleeve center line between position is 0 °~45 °.

7. the recovery type scene acoustic emission sensor according to any claim in claims 1 to 3, it is characterised in that described The notch (2-1) stretched out for acoustic emission probe cable connector that probe sleeve upper end barrel is set is U type slot.

8. recovery type scene acoustic emission sensor according to claim 6, it is characterised in that probe sleeve upper end barrel The notch (2-1) stretched out for acoustic emission probe cable connector of setting is U type slot.

9. the recovery type scene acoustic emission sensor according to any claim in claims 1 to 3, it is characterised in that described The lower face that acoustic emission probe (3) is contacted with probe sleeve bottom is coated with couplant.

10. recovery type scene acoustic emission sensor according to claim 8, it is characterised in that the acoustic emission probe (3) with The lower face of probe sleeve bottom contact is coated with couplant.