A kind of auxiliary fixing device of acoustic emission probe
Technical field
The utility model relates to concrete tests to detect field of auxiliary, and dress is auxiliarily fixed in especially a kind of acoustic emission probe
It sets.
Background technique
When laboratory carries out concrete test, it is often necessary to detect the damage of concrete by acoustic emission testing technology
Development needs that acoustic emission probe is made to be fitted in concrete sample surface always in the experimental stage thus.Actual mechanical process
In it is difficult to ensure that by acoustic emission probe effectively, be properly positioned to concrete sample surface, also none special use at present
In the auxiliary device of acoustic emission probe positioning.Positioning for acoustic emission probe on concrete sample surface, is primarily present three
Weight difficult point: first, it is necessary to assure acoustic emission probe can be efficiently located in surface of test piece, can't be because of test specimen change in test
The factors such as shape, vibration and fall off or deviate.Second, how to ensure that acoustic emission probe can be positioned at the coagulation of different conditions
Native test specimen, such as full water wet concrete, icecrete and the lesser mixed mud test specimen of effective fitting area.Third, sound
Transmitting probe should not too greatly limit the deformation of concrete sample, and then influence the accuracy of concrete test data.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of auxiliary fixing devices of acoustic emission probe, realize
Acoustic emission probe is conveniently and effectively located in all kinds of concrete sample surfaces, and will not influence the normal variation of test specimen.
A kind of auxiliary of acoustic emission probe that in order to solve the above technical problems, the technical scheme adopted by the utility model is:
Device, including support, push and pull system, preceding end fixator are fixed, switching magnet is fixedly installed on the support, is gone back on support
Equipped with support side plate;
The push and pull system further includes seat bar, the first spinner handle and the second spinner handle, and one end of seat bar is fixedly connected on
On support, the other end of seat bar is connect with the first spinner handle, and the other end of the first spinner handle is connect with the second spinner handle;
The preceding end fixator further includes acoustic emission probe box, spring, bearing plate and bend pipe, one end of bend pipe and second
Spinner handle is connected far from one end of the first spinner handle, and the other end of bend pipe is equipped with bearing plate, and bearing plate is fixedly connected with one end of spring,
The other end of spring is fixedly connected with acoustic emission probe box.
In preferred scheme, it is additionally provided with spin button on the switching magnet, is additionally provided with graduation mark on switching magnet, opens
It closes magnet bottom and is equipped with magnet poles.Support is facilitated to be fixed on testing stand.
In preferred scheme, the acoustic emission probe box further includes base box and card slot piece.Facilitate the suitable space of adjustment
Place acoustic emission probe.
In preferred scheme, the base box is equipped with notch, and card slot piece both ends are equipped with card slot, and card slot piece is movably arranged on
On base box.The suitable space of adjustment is facilitated to place acoustic emission probe.
In preferred scheme, the junction of the seat bar and the first spinner handle is equipped with mechanically gimbaled ball, the first spinner handle with
The junction of second spinner handle also is provided with mechanically gimbaled ball.Facilitate the position of adjustment acoustic emission probe box, comprehensive adjustment.
In preferred scheme, the bend pipe is Universal pipe.Facilitate the position of adjustment acoustic emission probe box, comprehensive tune
It is whole.
In preferred scheme, the bend pipe is plastic material.It is durable cheap.
A kind of auxiliary fixing device of acoustic emission probe provided by the utility model has by using above structure
Below the utility model has the advantages that
(1) it realizes and adjusts in several ways, be bonded acoustic emission probe effectively and be positioned at concrete sample surface
Designated position;
(2) apparatus structure is firm, it is ensured that acoustic emission probe is fitted in surface of test piece in the concrete mechanics test full stage, keeps away
The generation that probe misplaces from test specimen, falls off is exempted from;
(3) by spring, the normal deformation for not influencing concrete sample in loading procedure is realized, to greatly reduce
Test error, greatly improves the confidence level of acoustic emission signal data.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples:
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the bearing structure illustration of the utility model.
Fig. 3 is the switching magnet structural schematic diagram of the utility model.
Fig. 4 is the acoustic emission probe box structure schematic diagram of the utility model.
In figure: support 1, support side plate 101, switching magnet 2, spin button 201, graduation mark 202, magnet poles 203, branch
Seat bar 3, the first spinner handle 4, the second spinner handle 5, bend pipe 6, mechanically gimbaled ball 7, bearing plate 8, spring 9, acoustic emission probe box 10, base box
1001. card slot pieces 1002.
Specific embodiment
Embodiment 1:
In picture 1-4, a kind of auxiliary fixing device of acoustic emission probe, including support 1, push and pull system, preceding end fixator,
It is fixedly installed with switching magnet 2 on the support 1, support side plate 101 is additionally provided on support 1;
The push and pull system further includes seat bar 3, the first spinner handle 4 and the second spinner handle 5, and one end of seat bar 3 is fixed to be connected
It connects on support 1, the other end of seat bar 3 is connect with the first spinner handle 4, and the other end of the first spinner handle 4 is connect with the second spinner handle 5;
The preceding end fixator further includes acoustic emission probe box 10, spring 9, bearing plate 8 and bend pipe 6, one end of bend pipe 6
It is connect with the second spinner handle 5 far from one end of the first spinner handle 4, the other end of bend pipe 6 is equipped with bearing plate 8, bearing plate 8 and spring 9
One end is fixedly connected, and the other end of spring 9 is fixedly connected with acoustic emission probe box 10.
In preferred scheme, it is additionally provided with spin button 201 on the switching magnet 2, is additionally provided with scale on switching magnet 2
Line 202,2 bottom of switching magnet are equipped with magnet poles 203.
In preferred scheme, the acoustic emission probe box 10 further includes base box 1001 and card slot piece 1002.
In preferred scheme, the base box 1001 is equipped with notch, and 1002 both ends of card slot piece are equipped with card slot, card slot piece
1002 are movably arranged on base box 1001.
In preferred scheme, the junction of the seat bar 3 and the first spinner handle 4 is equipped with mechanically gimbaled ball 7, the first spinner handle
4 and second the junction of spinner handle 5 also be provided with mechanically gimbaled ball 7.
In preferred scheme, the bend pipe 6 is Universal pipe.
In preferred scheme, the bend pipe 6 is plastic material.
Embodiment 2:
1) the support side plate 1 of device seat 1 is fitted on testing stand edge, determines suitable position, rotary switch
The magnetism of switching magnet 2 is adjusted to maximum, device is securely fixed on testing stand by the spin button 201 on magnet 2;
2) the card slot piece 1002 on acoustic emission probe box 10 is extracted, the side of acoustic emission probe is put into base box 1001,
According to the size of acoustic emission probe, card slot piece 1002 is inserted in the suitable position of 1001 notch of base box, keeps acoustic emission probe reliable
Ground is mounted in acoustic emission probe box 10.
3) machinery between the mechanically gimbaled ball 7 between rotary support bar 3 and the first spinner handle 4, the first spinner handle 4 and the second spinner handle 5
Multi-directional ball 7, and then the spatial position of the first spinner handle 4 and the second spinner handle 5 is adjusted, the bend pipe 6 on curved second spinner handle 5 is adjusted in rotation, is made
Preceding end fixator must be bonded the position of fixed acoustic emission probe generally within concrete sample surface;
4) bend pipe 6 is adjusted again, is kept the central axes of entire leading portion fixator vertical with concrete sample surface, is guaranteed preceding
The effect of spring 9 of section fixator is lower to reduce device to coupon level to the influence of deformation, and allows acoustic emission probe well
It is fitted in surface of test piece;
5) repeat 1) -4) operation of step, the fitting positioning of all acoustic emission probes on test specimen is completed in batches;
6) off-test adjusts bend pipe 6, rotary support bar 3, first after completing all acoustic emission signal data acquisitions
Mechanically gimbaled ball 7 between spinner handle 4 and the second spinner handle 5 makes the acoustic emission probe box of leading portion fixator leave concrete sample table
Face.Card slot piece 1002 in acoustic emission probe box 10 is extracted from the notch of base box 1001, takes out acoustic emission probe, then card
Slotted vane 1002 is turned back to playback into notch.The spin button 201 of reverse direction rotary support upper switch magnet 2 carries out demagnetization, will fill
It sets and is removed from experimental bench.
7) repeat 1) -6) operation of step, the acoustic emission detection of all concrete samples is completed in batches.