CN107255460A - Spring acoustic emission sensor erecting device - Google Patents
Spring acoustic emission sensor erecting device Download PDFInfo
- Publication number
- CN107255460A CN107255460A CN201710490895.5A CN201710490895A CN107255460A CN 107255460 A CN107255460 A CN 107255460A CN 201710490895 A CN201710490895 A CN 201710490895A CN 107255460 A CN107255460 A CN 107255460A
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- China
- Prior art keywords
- spring
- probe
- acoustic emission
- sleeve
- end cap
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/04—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring the deformation in a solid, e.g. by vibrating string
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/223—Supports, positioning or alignment in fixed situation
Abstract
The invention discloses a kind of spring acoustic emission sensor erecting device, mainly it is made up of sleeve assembly, guidance set, end cap and spring；Connected between guidance set and sleeve assembly or end cap for plug type, spring is located in the spring spool of sleeve assembly and in compressive state.The present invention is combined by the plug type connection between guidance set and sleeve assembly or end cap, and utilize the elastic restoring force for the spring installed in spring spool, realize the control to guidance set and sleeve assembly moving direction, make the assembly overall dimensions of acoustic emission probe and erecting device controllable, so as to solve the problem that acoustic emission probe is effectively installed and coupled.
Description
Technical field
The invention belongs to the rock in engineering construction (body) project security monitoring technical field, it is related to a kind of spring sound hair
Penetrate installation device of sensor.
Background technology
Mine rock (body) deformation failure in engineering construction, particularly rock burst dynamic disaster, can directly jeopardize engineering
Security Construction, or even devastating impact can be caused, therefore rock (body) stability and rock burst dynamic disaster are effectively monitored
And forecast, it is one of important content that engineering safety is built.At present, sound emission is used as a kind of important means of non-destructive monitoring, quilt
For rock (body) stability in engineering construction and the monitoring and forecast of rock burst dynamic disaster.
In underground engineering wall rock excavates process of construction, in order to enter to the failure and deformation of surrounding rocks and dynamic disaster that are likely to occur
Row Accurate Prediction, acoustic emission sensor needs advance form in three-dimensional spatial distribution before engineering excavation is arranged in 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 rig in stone (body), drilling depth
Increase with engineering buried depth, monitored scope increase；But it is deeper to drill, acoustic emission sensor is installed 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 the liquid medium remained in drilling (such as
Water) as the medium of signal transmission between rock mass and acoustic emission probe, the detectable signal received is passed through line by acoustic emission probe
Cable is transferred to ground monitoring system；But there is following drawback in this method：1. to be appropriate only for direction downward for this implementation
Drilling, and for fully horizontal or have the drilling of certain angle upwards, do not applied to due to being difficult to medium for storing；Even for
Under drilling, it is still necessary to drilling around rock mass it is relatively complete so that 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 monitoring
Effect；Although the couplant that the liquid 2. between rock mass and acoustic emission probe can be transmitted as signal, the density of liquid
General relatively low, its signal transmission effect is believed not as acoustic emission probe and palisades are effectively directly contacted into received detection
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 be solved
Effective transmission problem of detectable signal, but still suffer from following defect：1. the acoustic emission probe after pouring into a mould is not recyclable, causes monitoring
Cost is too high；, can only be again if finding acoustic emission probe no signal or poor signal after 2. pouring into a mould, it is impossible to checked or adjusted
New acoustic emission probe is drilled and installed, it is too high not only result in monitoring cost, and also result in extension project progress, or even delay
Duration；3. cement mortar is injected 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 is deformed, and causing can not be effective
Transmit signal；4. the explosive in digging process is blown out, and slip casting face may be made to be relaxed with rock wall surface, causes what monitoring signals were transmitted
Validity is reduced；5. generally 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 which a series of professional grouting equipments and slip casting personnel, monitor into so as to further increase
This.
(3) it is another to be achieved in that using simple secure mounting arrangements, acoustic emission probe is fixed on inside device, so
Fixing device is delivered to behind installation position with rigid non-movable metallic transmission bar afterwards, acoustic emission probe is ejected 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 due to secure mounting arrangements and the distance between borehole wall it is close, therefore need
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. because secure mounting arrangements size is larger, the drilling being relatively large in diameter is only applicable to, causes drilling cost rise；3. it is 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, it is impossible to which delivering to needs position to be mounted；4. due to being by secure mounting arrangements
By external force, during its hardness insertion is drilled, therefore installation process not only wastes time and energy, and operating 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, is also the problem for needing in practical application to solve.
Based on drawback and defect present in above-mentioned various implementations, cause acoustic emission detection in rock (body) stability
And by a definite limitation during the application of rock burst dynamic disaster monitoring.
Thus, it is how convenient, effectively install acoustic emission probe 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.
The content of the invention
The purpose of the present invention is intended to fill for not enough install there is provided a kind of spring acoustic emission sensor of the prior art
Put, it is not only easy for installation, and be easy to make acoustic emission probe realize efficient coupling with borehole wall, it is ensured that acoustic emission probe is detected
The validity of signal.
Spring acoustic emission sensor erecting device of the present invention, including sleeve assembly, guidance set, end cap, spring,
Spacer pin and the connection component for being combined with conveyer；The sleeve assembly is made up of probe sleeve and spring spool, is visited
Headgear cylinder is lower end closed, the cylinder of upper end open, and endoporus and the acoustic emission probe of probe sleeve coordinate for gap, and lower surface is
The arc surface matched with the drilling radian of monitored rock mass, upper end barrel is provided with what is stretched out for the cable connector of acoustic emission probe
One or two notch, if two notches, two notches are axisymmetricly distributed relative to the center line of probe sleeve, spring sleeve is
The cylinder of lower end closed, upper end open, its quantity be two, two spring spools relative to probe sleeve center line axisymmetricly
It is fixed on probe sleeve outer wall, and the center line of line and the notch that is projected in horizontal plane of center line of two spring spools exists
The projection of horizontal plane is vertical；The end cap is the plate body that is matched with the shape and size of probe sleeve upper surface, or end cap
The connector set by cover plate and cover plate top surface is constituted, and cover plate is matched with the shape and size of probe sleeve upper surface, connector
It is provided with the via passed through for spacer pin；The guidance set is provided with the guide rod structure of the shaft shoulder by support plate and two upper segments
Into if end cap is plate body, support plate is that the arc surface that is matched with the drilling radian of monitored rock mass of top surface, bottom surface are planes
Structure, the upper segment of the shaft shoulder of two guide rods is provided with the second pin hole, and the upper end of two spring spools is provided with the first latch
Hole, if the connector that end cap is set by cover plate and cover plate top surface is constituted, support plate is the drilling radian of top surface and monitored rock mass
The arc surface of matching, the structure that bottom surface is plane, and support plate centre is provided with and cap connections shape and size
The centre bore matched somebody with somebody, the hole wall of the centre bore is provided with the 3rd pin hole, the upper segment of the shaft shoulder of two guide rods and two spring housings
The upper end of cylinder no longer sets pin hole, and two guide rods are axisymmetricly fixed on support plate bottom relative to the center line of supporting plate
Spacing between face, two guide rod center lines is identical with the spacing between two spring spool center lines；The number of the spring
Measure as two, two springs are respectively charged into two spring spools, and its lower end is contacted with the bottom wall of spring spool；If end cap is plate
Shape body, end cap is covered in probe sleeve upper surface and is detachable connection, two guide rods of guidance set with probe sleeve
Respectively with two spring assemblies, the upper-end contact of the lower anchor ring of their shaft shoulders respectively with two springs, spacer pin is two, respectively
Rope is connected with, two spacer pins insert the first pin hole of two spring spools setting respectively and the second of two guide rods setting inserts
Pin-and-hole makes two springs be in compressive state after spring spool is connected with guide rod；If end cap is set by cover plate and cover plate top surface
Connector constitute, the cover plate of end cap is covered in probe sleeve upper surface and is detachable connection, guiding group with probe sleeve
The support plate of part is sleeved on the connector of end cap, and its bottom surface is contacted with the cover plate of end cap, and spacer pin is one, is connected with rope
Rope, via set by the 3rd pin hole set by spacer pin insertion support plate and cap connections will make two after support plate and end cap connection
Root spring is in compressive state；The connection component is two sets, and two sets of connection components are using the center line of probe sleeve as symmetry axis
It is symmetrically mounted on probe sleeve outer wall, and projection and two spring spool of the center line in horizontal plane of two sets of connection components
Center line is vertical in the line that horizontal plane is projected.
Above-mentioned spring acoustic emission sensor erecting device, can be accomplished in several ways sleeve assembly and guidance set
Between plug type connection, the specific implementation that uses of the present invention includes following two：(1) end cap be with probe sleeve
The plate body of the shape and size matching of end face, guidance set support plate is what top surface was matched with the drilling radian of monitored rock mass
Arc surface, bottom surface are the structures of plane, and the upper segment of the shaft shoulder of two guide rods is provided with the second pin hole, two spring spools
Upper end is provided with the first pin hole；End cap is covered in probe sleeve upper surface and is detachable connection with probe sleeve, is oriented to
Two guide rods of component respectively with two spring assemblies, the upper-end contact of the lower anchor ring of their shaft shoulders respectively with two springs,
Two spacer pins insert the second pin hole that the first pin hole and two guide rods of the setting of two spring spools are set respectively, by spring
Sleeve makes two springs be in compressive state after being connected with guide rod；(2) connector that end cap is set by cover plate and cover plate top surface
Constitute, support plate be top surface matched with the drilling radian of monitored rock mass arc surface, the structure that bottom surface is plane, and support plate
Centre is provided with the centre bore matched with cap connections shape and size, and the hole wall of the centre bore is provided with the 3rd latch
The upper end of hole, the upper segment of the shaft shoulder of two guide rods and two spring spools no longer sets pin hole, two guide rods relative to
The center line of supporting plate is axisymmetricly fixed on spacing and two spring housings between support plate bottom surface, two guide rod center lines
Spacing between cylinder center line is identical；The cover plate of end cap is covered in probe sleeve upper surface and is detachable company with probe sleeve
Connect, the support plate of guidance set is sleeved on the connector of end cap, its bottom surface is contacted with the cover plate of end cap, spacer pin insertion supporting
Via set by 3rd pin hole set by plate and cap connections, will make two springs be in compression shape after support plate and end cap connection
State.
The first pin hole on above-mentioned spring acoustic emission sensor erecting device, spring spool is located at the top of the shaft shoulder,
It just can so avoid spring spool and the influence produced by spring floating in guide rod docking operation.
Above-mentioned spring acoustic emission sensor erecting device, in order that erecting device is contacted with the effective of borehole wall, from
And ensureing acoustic emission probe signal transmission effect, the probe sleeve and support plate are column construction.
Above-mentioned spring acoustic emission sensor erecting device, by nut and at least, two secondary connecting brackets are constituted connection component,
One end of each connecting bracket is uniformly distributed around nut outer wall and is hinged with nut outer wall, the other end and probe of each connecting bracket
Sleeve outer wall is connected；This connection component can be such that erecting device realizes within the specific limits to rotate by a small margin, so that further
Ensure that supporting plate top surface and probe sleeve bottom are contacted with borehole wall efficient coupling.
Above-mentioned spring acoustic emission sensor erecting device, for the ease of the cable extraction that will be connected with acoustic emission probe,
The notch that the confession acoustic emission probe cable connector that probe sleeve upper end barrel is set stretches out is U-type groove mouthful；The U-type groove mouthful
Width be more than acoustic emission probe cable connector diameter.
The operation principle of above-mentioned spring acoustic emission sensor erecting device：Pass through guidance set and sleeve assembly or end cap
Acoustic emission probe, can be locked in probe sleeve by plug type connected mode, fill the installation after loading acoustic emission probe
The overall dimensions for putting (assembly of acoustic emission probe 9 and erecting device) are less than monitored rock body drilled size, are easy in drilling
Inside move freely, it is convenient to install；The spacer pin extraction that component is connected with sleeve assembly or end cap is directed to, in spring effect
Under, guidance set is moved with sleeve assembly to opposite both direction, so that guidance set supporting plate top surface and sleeve assembly
Probe sleeve bottom is in close contact with drill hole inner wall respectively, therefore can ensure effective coupling of acoustic emission probe and borehole wall
Close, meet the condition of work of acoustic emission probe signal monitoring.
Compared with prior art, the invention has the advantages that：
1st, spring acoustic emission sensor erecting device of the present invention, by guidance set and sleeve assembly or end cap it
Between plug type connection combination, and using be arranged on sleeve assembly spring spool in spring restoring force effect, can
The control to guidance set and sleeve assembly moving direction is realized, makes the erecting device overall dimensions after loading acoustic emission probe can
Control, so as to solve the problem that acoustic emission probe is effectively installed and coupled；
2nd, spring acoustic emission sensor erecting device of the present invention, constitutes the supporting plate top surface and probe of erecting device
Sleeve bottom is the arc coupling surface being adapted to borehole wall, and both effectively contact with borehole wall, so that it is guaranteed that sound emission
The efficient coupling of probe and borehole wall, the monitoring and forecast strengthened to rock (body) stability and rock burst dynamic disaster is reliable
Property.
3rd, spring acoustic emission sensor erecting device of the present invention, due to be fixed on the connecting bracket of probe sleeve with
It is to rotate connection between nut, probe sleeve can rotate by a small margin within the specific limits relative to conveyer, not only can be with
Contribute to the transmission of acoustic emission sensor, and contribute to the installation of acoustic emission sensor to adjust, further ensure that support plate top
Face and probe sleeve bottom are contacted with borehole wall efficient coupling.
4th, spring acoustic emission sensor erecting device of the present invention, also with simple in construction, is installed, convenient disassembly
Feature, reaches reduction labor intensity, saves the effect of a large amount of human costs.
Brief description of the drawings
Fig. 1 is spring acoustic emission sensor erecting device middle sleeve component of the present invention, guidance set, end cap, bullet
A kind of combination diagram of spring, spacer pin.
Fig. 2 is Fig. 1 A-A sectional view.
Fig. 3 is a kind of structural representation of spring acoustic emission sensor erecting device middle sleeve component of the present invention；
Fig. 4 is a kind of structural representation of guidance set in spring acoustic emission sensor erecting device of the present invention.
Fig. 5 shows for the combination of spring acoustic emission sensor erecting device middle sleeve component of the present invention and connection component
It is intended to.
Fig. 6 is the connecting bracket and nut of connection component in spring acoustic emission sensor erecting device of the present invention
Connected mode schematic diagram.
Fig. 7 is spring acoustic emission sensor erecting device middle sleeve component of the present invention, guidance set, end cap, bullet
Another combination diagram of spring, spacer pin.
Fig. 8 is Fig. 7 B-B sectional views.
Fig. 9 is another structural representation of guidance set in spring acoustic emission sensor erecting device of the present invention
Figure.
Figure 10 is the schematic diagram of acoustic emission probe.
Figure 11 is Figure 10 top view.
Figure 12 is the combination diagram of spring acoustic emission sensor erecting device of the present invention and conveyer.
Figure 13 is in for the assembly of spring acoustic emission sensor erecting device of the present invention and acoustic emission sensor
Schematic diagram during installment state.
Figure 14 is in for the assembly of spring acoustic emission sensor erecting device of the present invention and acoustic emission sensor
Schematic diagram during detection state.
In figure：1st, sleeve assembly, 1-1, probe sleeve, 1-2, spring spool, 1-3, the first pin hole, 1-4, notch, 2,
Guidance set, 2-1, support plate, 2-1-1, centre bore, 2-1-2, the 3rd pin hole, 2-2, guide rod, 2-3, the second pin hole,
2-4, the shaft shoulder, 3, end cap, 3-1, cover plate, 3-2, connector, 3-3, via, 4, spring, 5, spacer pin, 6, rope, 7, connection branch
Frame, 8, nut, 9, acoustic emission probe, 9-1, cable connector, 10, conveyer.
Embodiment
By the following examples and with reference to technology of the accompanying drawing to spring acoustic emission sensor erecting device of the present invention
Scheme carries out clear, complete description, it is clear that described embodiment is only a part of embodiment of the present invention, rather than entirely
The embodiment in portion.Based on the embodiment in the present invention, those of ordinary skill in the art are not making the premise of creative work
Lower resulting all other embodiment, belongs to the scope that the present invention is protected.
Embodiment 1
The spring acoustic emission sensor erecting device that the present embodiment is provided, as shown in Figures 1 and 2, including sleeve assembly
1st, guidance set 2, end cap 3, spring 4, spacer pin 5 and the connection component for being combined with conveyer.
As shown in Figure 1 to Figure 3, above-mentioned sleeve assembly 1 includes probe sleeve 1-1 and spring spool 1-2；Probe sleeve 1-1
For the cylinder of lower end closed, upper end open, endoporus and the acoustic emission probe 9 of probe sleeve coordinate for gap, and lower surface is and quilt
The arc surface of the drilling radian matching of rock mass is monitored, upper end barrel is provided with what is stretched out for the cable connector 9-1 of acoustic emission probe
One U-type groove mouthful 1-4；Spring spool 1-2 is lower end closed, the cylinder of upper end open, and its quantity is two, two spring spool phases
Axisymmetricly weld for the center line of probe sleeve and be fixed on probe sleeve outer wall, and two spring spools center line in level
The line of face projection is vertical in the projection of horizontal plane with notch 1-4 center line, and two spring spool 1-2 upper end is provided with for limit
The first pin hole 1-3 that position pin 5 is passed through.
As shown in figure 3, end cap 3 is the plate body matched with the shape and size of probe sleeve 1-1 upper surfaces.
As shown in Figure 1, Figure 2 and shown in Fig. 4, guidance set 2 is provided with leading for shaft shoulder 2-4 by support plate 2-1 and two upper segments
Constituted to bar 2-2, support plate 2-1 is that the arc surface that is matched with the drilling radian of monitored rock mass of top surface, bottom surface are the knots of plane
Structure, the upper segment of the two guide rod 2-2 shaft shoulder is provided with the second pin hole 2-3 passed through for spacer pin 5, two guide rod phases
Spacing and two between support plate bottom surface, two guide rod center lines is axisymmetricly weldingly fixed on for the center line of supporting plate
Spacing between individual spring spool 1-2 center lines is identical.
For the ease of the operation to spacer pin 5, spacer pin 5 be have control spacer pin 5 extract rope 6, rope 6 it is another
The rope used in drilling, the present embodiment is stretched out for steel wire rope in end.
As shown in Figures 5 and 6, above-mentioned connection component be two sets, two sets of connection components using the center line of probe sleeve as pair
Axial symmetry is claimed to be welded on probe sleeve 1-1 outer walls, and projection and two bullets of the center line in horizontal plane of two sets connection components
The center line of spring sleeve is vertical in the line that horizontal plane is projected.Often set connection component is made up of the secondary connecting bracket 7 of nut 8 and two,
Connecting bracket 7 can be bent according to probe sleeve 1-1 and nut 8 magnitude relationship, and its one end is used for and probe sleeve 1-1 groups
Close, the other end is hinged (see Fig. 6) with the outer wall of nut 8.
As shown in Figure 1, Figure 2, shown in Figure 10 to Figure 12, above-mentioned spring acoustic emission sensor erecting device and acoustic emission probe
Assembling mode is：Acoustic emission probe 9 is arranged in probe sleeve 1-1, it is coated with one end of butter with probe sleeve 1-1's
Bottom is contacted, and the U-type groove mouthful 1-4 that its cable connector 9-1 is set from probe sleeve barrel stretches out, and two springs 4 are respectively charged into two
In individual spring spool 1-2, its lower end is contacted with the bottom wall of spring spool；End cap 3 be covered in probe sleeve 1-1 upper surfaces and with spy
Headgear cylinder is fixedly connected through screw, and two guide rod 2-2 of guidance set are combined with two springs 4 respectively, under their shaft shoulders
The upper-end contact of anchor ring respectively with two springs, two spacer pins 5 insert the first pin hole 1-3 of two spring spools setting respectively
The the second pin hole 2-3 set with two guide rods, makes two springs 4 be in compression shape after spring spool is connected with guide rod
State, that is, complete the assembling of acoustic emission probe and erecting device, forms the assembly of transmitting probe 9 and erecting device.
As shown in Figure 12, Figure 13 and Figure 14, the application method of spring acoustic emission sensor erecting device is：Pass through connection
The nut 8 of component is combined with conveyer 10, and then the assembly of transmitting probe 9 and erecting device is put into drilling, is promoted
The driven rod of conveyer, the assembly of transmitting probe 9 and erecting device is delivered to the position for needing to monitor, after rear rope for traction
6, spacer pin 5 is extracted, under the resilient force of spring 4, sleeve assembly 1 and guidance set 2 are moved in the opposite direction, so that
Support plate 2-1 top surface and probe sleeve 1-1 bottom is set to be in close contact respectively with borehole wall；Due to support plate 2-1 top
Face and probe sleeve 1-1 bottom are the arc surface being adapted to drilling hole wall-shaped face, thereby may be ensured that both and drilling hole
Effective contact of wall, it is ensured that the validity and stability of acoustic emission probe received signal；In addition, connecting bracket 7 and nut 8 it
Between be hinged, the assembly of transmitting probe 9 and erecting device can be made to be realized in installation process and rotated by a small margin, it is ensured that support plate 2-
1 top surface and probe sleeve 1-1 bottom are effectively contacted with borehole wall.
Welding attachment in the present embodiment, can also be other by bolt attachment, integral type curing molding etc.
Attachment is substituted；Screw attachment, can also be substituted by other modes that are removably fixed with such as buckle, magnetic coupling.
Embodiment 2
The spring acoustic emission sensor erecting device that the present embodiment is provided, relative to embodiment 1, to sleeve assembly 1, leads
Certain improvement is carried out to the structure of component 2 and end cap 3, concrete structure is as shown in Figure 7 to 9.The end cap 3 is by cover plate 3-
The 1 and connector 3-2 that sets of cover plate top surface is constituted, and cover plate 3-1 matches with the shape and size of probe sleeve 1-1 upper surfaces, company
Fitting 3-2 is provided with the via 3-3 passed through for spacer pin 5；The support plate 2-1 of guidance set is the brill of top surface and monitored rock mass
The arc surface of radial degree matching, the structure that bottom surface is plane, and support plate 2-1 centres are provided with and cap connections 3-2
The centre bore 2-1-1 of shape and size matching, the hole wall of the centre bore is provided with the 3rd pin hole 2-1- that common spacer pin is passed through
2, the upper segment of the two guide rod 2-2 shaft shoulder and two spring spool 1-2 upper end no longer set pin hole, two guide rod phases
Spacing between support plate bottom surface, two guide rod center lines and two bullets are axisymmetricly fixed on for the center line of supporting plate
Spacing between spring sleeve 1-2 center lines is identical.
The assembling mode of above-mentioned spring acoustic emission sensor erecting device and acoustic emission probe is：By acoustic emission probe 9
In probe sleeve 1-1, its one end for being coated with butter is contacted with probe sleeve 1-1 bottom, its cable connector 9-1 from
The U-type groove mouthful 1-4 that probe sleeve barrel is set is stretched out, and two springs 4 are respectively charged into two spring spool 1-2, its lower end with
The bottom wall contact of spring spool；The cover plate 3-1 of end cap is covered in probe sleeve 1-1 upper surfaces and with probe sleeve through mode connects for screw
Fixed, the support plate 2-1 of guidance set is sleeved on the connector 3-2 of end cap, and its bottom surface is contacted with the cover plate of end cap 3, spacing
Pin 5 inserts via 3-3 set by the 3rd pin hole 2-1-2 set by support plate and cap connections, after support plate and end cap connection
Two springs 5 is in compressive state, that is, complete the assembling of acoustic emission probe and erecting device, form transmitting probe 9 and install
The assembly of device.
The application method for the spring acoustic emission sensor erecting device that the present embodiment is provided is same as Example 1.
Claims (3)
1. a kind of spring acoustic emission sensor erecting device, it is characterised in that including sleeve assembly (1), guidance set (2), end
Cover (3), spring (4), spacer pin (5) and the connection component for being combined with conveyer；
The sleeve assembly (1) is made up of probe sleeve (1-1) and spring spool (1-2), and probe sleeve (1-1) is lower end seal
Close, the cylinder of upper end open, the endoporus of probe sleeve is that gap coordinates with acoustic emission probe (9), lower surface for and monitored rock
The arc surface of the drilling radian matching of body, upper end barrel is provided with one stretched out for the cable connector (9-1) of acoustic emission probe
Or two notches (1-4), if two notches, two notches are axisymmetricly distributed relative to the center line of probe sleeve, spring sleeve
(1-2) is lower end closed, the cylinder of upper end open, and its quantity is two, center line of two spring spools relative to probe sleeve
Axisymmetricly it is fixed on probe sleeve outer wall, and the center line line and the notch that are projected in horizontal plane of two spring spools
The center line of (1-4) is vertical in the projection of horizontal plane；The end cap (3) is the shape and chi with probe sleeve (1-1) upper surface
The plate body of very little matching, or the connector (3-2) that end cap (3) is set by cover plate (3-1) and cover plate top surface are constituted, cover plate (3-
1) shape and size with probe sleeve (1-1) upper surface are matched, and connector (3-2) is provided with the mistake passed through for spacer pin (5)
Hole (3-3)；The guidance set (2) is provided with the shaft shoulder (2-4) guide rod (2-2) by support plate (2-1) and two upper segments
Constitute, if end cap (3) be plate body, support plate (2-1) be top surface matched with the drilling radian of monitored rock mass arc surface, bottom
Face is the structure of plane, and the upper segment of the shaft shoulder of two guide rods (2-2) is provided with the second pin hole (2-3), two spring spools
The upper end of (1-2) is provided with the first pin hole (1-3), if the connector that end cap (3) is set by cover plate and cover plate top surface is constituted, props up
Board (2-1) be top surface matched with the drilling radian of monitored rock mass arc surface, the structure that bottom surface is plane, and support plate
(2-1) centre is provided with the centre bore (2-1-1) matched with cap connections (3-2) shape and size, the centre bore
Hole wall is provided with the 3rd pin hole (2-1-2), the upper segment of the shaft shoulder of two guide rods (2-2) and two spring spools (1-2)
Upper end no longer sets pin hole, and two guide rods are axisymmetricly fixed on support plate bottom surface, two relative to the center line of supporting plate
Spacing between root guide rod center line is identical with the spacing between two spring spool (1-2) center lines；
The quantity of the spring (4) is two, and two springs are respectively charged into two spring spools (1-2), its lower end and spring
The bottom wall contact of sleeve；If end cap (3) is plate body, end cap is covered in probe sleeve (1-1) upper surface and is with probe sleeve
Detachable connection, two guide rods (2-2) of guidance set are combined with two springs (4) respectively, the lower anchor ring of their shaft shoulders
Respectively with the upper-end contact of two springs, spacer pin (5) is two, is connected to rope (6), two spacer pins are inserted respectively
The second pin hole (2-3) that the first pin hole (1-3) and two guide rods that two spring spools are set are set is by spring spool with leading
Two springs (4) are made to be in compressive state after being connected to bar；If the connection that end cap (3) is set by cover plate (4-1) and cover plate top surface
Part (3-2) is constituted, and the cover plate (3-1) of end cap is covered in probe sleeve (1-1) upper surface and is detachable company with probe sleeve
Connect, the support plate (2-1) of guidance set is sleeved on the connector of end cap (3-2), and its bottom surface is contacted with the cover plate of end cap (3),
Spacer pin (5) is one, is connected with rope (6), the 3rd pin hole (2-1-2) and end cap connection set by spacer pin insertion support plate
Via set by part (3-3) will make two springs (4) be in compressive state after support plate and end cap connection；The connection component is two
Set, two sets of connection components are symmetrically mounted on by symmetry axis of the center line of probe sleeve on probe sleeve (1-1) outer wall, and two sets
The center line of connection component is vertical in the line that horizontal plane is projected with the center line of two spring spools in the projection of horizontal plane.
2. spring acoustic emission sensor erecting device according to claim 1, it is characterised in that the connection component is by spiral shell
Female (8) and at least two secondary connecting bracket (7) compositions, one end of each connecting bracket is uniformly distributed and and spiral shell around nut (8) outer wall
Female outer wall is hinged, and the other end and probe sleeve (1-1) outer wall of each connecting bracket are connected.
3. spring acoustic emission sensor erecting device according to claim 1 or claim 2, it is characterised in that the probe sleeve cylinder
The notch (1-4) that the confession acoustic emission probe cable connector that wall upper end is set stretches out is U-type groove mouthful.
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| CN201710490895.5A CN107255460B (en) | 2017-06-23 | 2017-06-23 | Spring acoustic emission sensor mounting device |
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| CN201710490895.5A CN107255460B (en) | 2017-06-23 | 2017-06-23 | Spring acoustic emission sensor mounting device |
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| CN107255460B CN107255460B (en) | 2019-11-22 |
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| Publication number | Publication date |
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| CN107255460B (en) | 2019-11-22 |
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