CN201935901U - Axial acoustic velocity measuring device of cable sheaths - Google Patents
Axial acoustic velocity measuring device of cable sheaths Download PDFInfo
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- CN201935901U CN201935901U CN201020622598.5U CN201020622598U CN201935901U CN 201935901 U CN201935901 U CN 201935901U CN 201020622598 U CN201020622598 U CN 201020622598U CN 201935901 U CN201935901 U CN 201935901U
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Abstract
The utility model belongs to the technical field of velocity measuring and relates to an axial acoustic velocity measuring device of cable sheaths. The axial acoustic velocity measuring device of cable sheaths comprises not only an ultrasonic transmitting probe, an ultrasonic receiving probe and a distance reading unit, but also an upper clamping body, a lower clamping body, an ultrasonic transmitting probe vertically moving unit, an ultrasonic receiving probe horizontally moving unit and an ultrasonic receiving probe vertically moving unit. The axial acoustic velocity measuring device of cable sheaths solves problems of devices and technologies required for measuring axial ultrasound acoustic velocity of partial portion of the cable sheaths and can measure the axial acoustic velocity of the cable sheaths with no damage to the cable sheaths and no information of thickness of the cable sheaths.
Description
Technical field
The utility model belongs to the acoustic velocity measutement technical field, is specifically related to the axial acoustic velocity measutement device of a kind of cable cover(ing).
Background technology
Ultrasonic velocity is the important parameter that characterizes rubber-like material physical property, and the nuclear safe level cable cover(ing) velocity of sound can be used for the ageing state of nondestructive characterisation (NDC) cable.
At present, the researcher generally adopts radially acoustic velocity measutement device of cable cover(ing), and its weak point is that this device needs damaged tested cable cover(ing) to obtain thickness of cable sheath information accurately, could calculate the radially velocity of sound of cable cover(ing) then.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of under the prerequisite of damaged cable cover(ing) not, measures the device of the axial velocity of sound of cable cover(ing).
The technical solution of the utility model is as described below:
The axial acoustic velocity measutement device of a kind of cable cover(ing), it not only comprises ultrasound wave receiving transducer, ultrasound wave receiving transducer and apart from reading unit, also comprises upper clamp, lower clamp, ultrasound wave receiving transducer vertical movement unit, ultrasound wave receiving transducer tangential movement unit, ultrasound wave receiving transducer vertical movement unit.Close its position: lower clamp is positioned over the upper clamp below, and the two fits tightly, unite for other assembly provides support, but and the tested cable of clamping; Be fixed in upper clamp one side apart from reading unit; Ultrasound wave receiving transducer tangential movement unit and ultrasonic emitting probe vertical movement unit are positioned over upper clamp inside in front and back respectively side by side; Ultrasound wave receiving transducer vertical movement unit is embedded in ultrasound wave receiving transducer tangential movement unit; Ultrasonic emitting probe, ultrasound wave receiving transducer place ultrasonic emitting probe vertical movement unit, inside, ultrasound wave receiving transducer vertical movement unit respectively.
Wherein, the upper clamp frame comprises former and later two parts, and wherein, the front portion comprises two sidewalls, the rear portion comprises two sidewalls and a upper wall, is " recessed " shape on the external overall: the inboard along continuous straight runs correspondence in the two side of upper clamp frame front portion is provided with receiving transducer tangential movement gathering sill; The inboard, two side at upper clamp frame rear portion vertically correspondence is provided with transmitting probe vertical movement gathering sill; The upper wall centre position at upper clamp frame rear portion is provided with at least one and runs through its interior upper clamp screw.
Lower clamp comprises the lower clamp frame, and the lower clamp frame is a rectangular parallelepiped, is connected under the upper clamp frame, and length is identical with the upper clamp frame with width, and is provided with the semi-circular recesses that along continuous straight runs runs through the lower clamp frame.
Described ultrasonic emitting probe vertical movement unit comprises transmitting probe vertical movement piece, transmitting probe vertical movement guide rod and transmitting probe vertical movement stop nut.
Transmitting probe vertical movement piece comprises two sidewalls and a upper wall, and integral body is " mouth " shape of open-ended, and its size can satisfy the rear portion that is embedded in the upper clamp frame, and can carry out the motion of vertical direction therein; Transmitting probe is placed on vertical movement piece inside, forms a fixed connection by screw and vertical movement piece.
The outside, two side of transmitting probe vertical movement piece vertically correspondence is provided with transmitting probe vertical movement guiding projection, the transmitting probe vertical movement gathering sill of its position and shape and upper clamp frame is corresponding, makes transmitting probe vertical movement piece carry out moving of vertical direction at the rear portion of upper clamp frame along transmitting probe vertical movement gathering sill.
The upper wall of transmitting probe vertical movement piece is provided with the receiving transducer screw, and the upper clamp screw of its quantity and position and upper clamp frame is corresponding.
Transmitting probe vertical movement guide rod is carved with the column of screw thread for two ends up and down, quantity is identical with the upper clamp screw of upper clamp frame, transmitting probe vertical movement lower end of the guide rod forms with the screw of transmitting probe vertical movement piece upper wall relevant position by screw thread and is connected, and the upper clamp screw of upper clamp frame is passed in the upper end of transmitting probe vertical movement guide rod;
Each transmitting probe vertical movement guide rod is furnished with a transmitting probe vertical movement stop nut, and transmitting probe vertical movement stop nut is placed upper clamp screw top, fixes by the upper end of screw thread and transmitting probe vertical movement guide rod.
Described ultrasound wave receiving transducer tangential movement unit comprises receiving transducer tangential movement piece:
Receiving transducer tangential movement piece comprises two sidewalls and a upper wall, and integral body is " mouth " shape of bottom open-ended, and its size can satisfy between its two side that is positioned over upper clamp frame front portion, and can carry out the motion of horizontal direction in upper clamp frame front portion.
The outside, the two side along continuous straight runs correspondence of receiving transducer tangential movement piece is provided with receiving transducer tangential movement guiding projection, and it makes receiving transducer tangential movement piece can carry out moving of horizontal direction along receiving transducer tangential movement gathering sill under the support of lower clamp; The inboard, two side of receiving transducer tangential movement piece vertically correspondence is provided with receiving transducer vertical movement gathering sill.
The centre position of receiving transducer tangential movement piece upper wall is provided with at least one and runs through its interior receiving transducer first screw.
Described ultrasound wave receiving transducer vertical movement unit comprises receiving transducer vertical movement piece, receiving transducer vertical movement guide rod and stop means.
Receiving transducer vertical movement piece comprises two sidewalls and a upper wall, and integral body is " mouth " shape of bottom open-ended, and its size can satisfy it and be embedded in ultrasound wave receiving transducer tangential movement unit, and can carry out the motion of vertical direction therein.Receiving transducer is placed on vertical movement piece inside, forms a fixed connection by screw and vertical movement piece.
The outside, two side of receiving transducer vertical movement piece vertically correspondence is provided with receiving transducer vertical movement guiding projection, the receiving transducer vertical movement gathering sill of its position and shape and receiving transducer tangential movement piece is corresponding, makes receiving transducer vertical movement piece carry out moving of vertical direction in receiving transducer tangential movement piece inside along receiving transducer vertical movement gathering sill.
The upper wall of receiving transducer vertical movement piece is provided with receiving transducer second screw that runs through in it, and receiving transducer first screw of its position and quantity and receiving transducer tangential movement piece is corresponding.
Receiving transducer vertical movement guide rod is carved with the column of screw thread for part, two ends up and down, its quantity is identical with receiving transducer first screw of receiving transducer tangential movement piece, each receiving transducer vertical movement lower end of the guide rod forms with receiving transducer second screw of receiving transducer vertical movement piece upper wall relevant position by screw thread and is connected mounting ultrasonic receiving transducer vertical movement piece; Each receiving transducer vertical movement guide rod all passes receiving transducer first screw of receiving transducer tangential movement piece, and the stop means of its upper end and relevant position is by being threaded;
Stop means is placed on the top of receiving transducer tangential movement piece, with receiving transducer vertical movement guide rod upper end by being threaded, so that receiving transducer vertical movement piece can only move up and down in the certain space scope.
Wherein, described is a rule apart from reading unit, and it is fixed in the top of the anterior side sidewall of upper clamp frame; Apart from reading unit also can be electronic digital indicator, electronic digital indicator one end is fixed in the top of the anterior side sidewall of upper clamp frame, the other end is fixed in the top of a corresponding side sidewall of receiving transducer tangential movement piece, before and after the displacement of receiving transducer tangential movement piece occurred level, provide range reading respectively.
Described upper clamp can also comprise the upper clamp handle, and its sidewall with the anterior side of upper clamp frame is connected; Described lower clamp can also comprise the lower clamp handle, and it is connected with a side of lower clamp frame.The upper clamp frame is connected with the mode of lower clamp handle by pin joint, and the upper clamp key seat is positioned on upper clamp frame and the sidewall that the upper clamp handle links to each other, and the lower clamp key seat is positioned on the lower clamp handle, and the lower clamp pin passes upper clamp key seat and lower clamp key seat; Be provided with locating button between upper clamp frame and the lower clamp frame, the locking after being used for the lower clamp frame and coincideing is with fixing.
As improvement of the present utility model, described ultrasonic emitting probe vertical movement unit also comprises the transmitting probe spring, its quantity is identical with the quantity of described transmitting probe vertical movement guide rod, each transmitting probe vertical movement guide rod is with a transmitting probe spring, and the transmitting probe spring is between upper clamp frame and transmitting probe vertical movement piece.Described ultrasound wave receiving transducer vertical movement unit also comprises the receiving transducer spring, its quantity is identical with the quantity of described receiving transducer vertical movement guide rod, each receiving transducer vertical movement guide rod is with a receiving transducer spring, and the receiving transducer spring is between receiving transducer tangential movement piece and receiving transducer vertical movement piece.
As another improvement of the present utility model, described ultrasound wave receiving transducer tangential movement unit also comprises the tangential movement control structure, it is made up of leading screw, leading screw seat and guide screw movement deflector apron: the guide screw movement deflector apron is connected on anterior two sidewalls of upper clamp frame, which is provided with screw, the leading screw seat is the column that is carved with screw thread, leading screw passes the guide screw movement deflector apron by the leading screw seat and is connected on the receiving transducer tangential movement piece by drive block, and drive block makes the leading screw helical motion be converted to the rectilinear motion of horizontal direction.
As further improvement of the utility model, the quantity of the upper clamp screw of described upper clamp frame is two, is arranged at the centre position on upper clamp frame top before and after it; The quantity of receiving transducer first screw of described receiving transducer tangential movement piece is two, is arranged at the centre position of receiving transducer tangential movement piece upper wall before and after it.
As preferred version of the present utility model, described stop means can be nut; Also can comprise key seat, pin, cam, the cam swing handle, cam follower and set nut: two key seats are fixed on the upper wall top of receiving transducer tangential movement piece, the cam of being made up of two wheel sheets is supported between two key seats by pin, the cam swing handle is connected on the pin of a side between cam and the key seat, cam follower is the rectangular parallelepiped that is provided with screw, receiving transducer first screw of the position of its screw and quantity and receiving transducer tangential movement piece is corresponding, it passes the part that receiving transducer vertical movement guide rod upwards exposes receiving transducer first screw, be placed between two wheels of cam sheet, two set nuts are separately fixed at two receiving transducer vertical movement guide rod upper ends, for cam follower provides spacing.
Useful achievement of the present utility model is:
(1) the utility model can be measured the axial velocity of sound of cable cover(ing) under the prerequisite of damaged cable cover(ing) not;
(2) the upper clamp frame by upper clamp handle and lower clamp handle, makes measuring process can place tested cable quickly and easily in conjunction with the lower clamp frame, does not promptly need to cut off cable and just can measure, and is convenient to engineering site and uses;
(3) be provided with locating button between upper clamp frame and the lower clamp frame, make upper clamp, lower clamp in the course of the work tight connecting and the tested cable of clamping, avoid taking place relative motion and influence measuring accuracy;
(4) the transmitting probe spring is subjected to the compression of outside surface of upper clamp frame inside surface and transmitting probe vertical movement piece and deformation, for transmitting probe vertical movement piece provides stable downforce, guarantee ultrasonic emitting probe and stable, reliable, the consistent contact of cable cover(ing) in the measuring process; The receiving transducer spring is subjected to the compression of outside surface of receiving transducer tangential movement piece inside surface and receiving transducer vertical movement piece and deformation, for receiving transducer vertical movement piece provides stable downforce, guarantee ultrasound wave receiving transducer and stable, reliable, the consistent contact of cable cover(ing) in the measuring process;
(5) tangential movement control structure can realize, labour-saving control meticulous, convenient to ultrasound wave receiving transducer tangential movement unit by rotational lead screw;
(6) second screw of the upper clamp screw 15 of upper clamp frame and receiving transducer tangential movement piece 50 is set to tandem two respectively, both needn't too much make too very complicated of measuring process, take into account the reliability of limit function again owing to transmitting probe stop nut 43 or the stop means quantity that needs are regulated;
(7) adopt the stop means that comprises key seat, pin, cam, cam handle, cam follower and set nut, can only drive cam follower and move up, move up thereby drive receiving transducer vertical movement piece by the rotating cam handle; When cam handle cycle original position, under the effect of receiving transducer spring restoring force, ultrasound wave receiving transducer vertical movement piece moves downward; The said apparatus synergy, and then control compressing/disengaged position of ultrasound wave receiving transducer and cable cover(ing), simplified operating process and guaranteed that receiving transducer has stable and consistent contact to tested cable in measuring process;
(8) measuring accuracy of this device can reach 2%.
Description of drawings
Fig. 1 is the structural drawing of the third embodiment of the axial acoustic velocity measutement device of a kind of cable cover(ing) of the present utility model;
Fig. 2 is the structural drawing of first kind of embodiment upper clamp of the axial acoustic velocity measutement device of a kind of cable cover(ing) of the present utility model frame;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the B-B sectional view of Fig. 2;
Fig. 5 is the structural drawing of first kind of embodiment receiving transducer of the axial acoustic velocity measutement device of a kind of cable cover(ing) of the present utility model vertical movement piece;
Fig. 6 is the structural drawing of a kind of cable cover(ing) of the present utility model axial acoustic velocity measutement device the 4th kind of embodiment ultrasound wave receiving transducer tangential movement unit and ultrasound wave receiving transducer vertical movement unit.
Wherein, the component Name represented of each sequence number is:
11-upper clamp frame, 12-upper clamp handle,
13-upper clamp key seat, 14-receiving transducer tangential movement gathering sill,
15-upper clamp screw, 16-transmitting probe vertical movement gathering sill,
21-lower clamp frame, the 22-groove,
23-lower clamp handle, 24-lower clamp key seat,
25-lower clamp pin, 30-be apart from reading unit,
40-transmitting probe vertical movement piece, 41-transmitting probe vertical movement guiding projection,
42-transmitting probe vertical movement guide rod, 43-transmitting probe stop nut,
44-transmitting probe spring, 50-receiving transducer tangential movement piece,
51-receiving transducer tangential movement guiding projection, 52-receiving transducer vertical movement gathering sill,
The 53-leading screw, 54-leading screw seat,
55-guide screw movement deflector apron, 60-receiving transducer vertical movement piece,
61-receiving transducer vertical movement guiding projection, 62-receiving transducer vertical movement guide rod,
63-receiving transducer spring, the 64-key seat,
The 65-pin, the 66-cam,
67-cam swing handle, the 68-cam follower.
Embodiment
Below in conjunction with the drawings and specific embodiments the axial acoustic velocity measutement device of a kind of cable cover(ing) of the present utility model is introduced:
Embodiment 1
As shown in Figure 1, the axial acoustic velocity measutement device of the cable cover(ing) of present embodiment comprises ultrasonic emitting probe, ultrasound wave receiving transducer and apart from reading unit 30, upper clamp, lower clamp, ultrasonic emitting probe vertical movement unit, ultrasound wave receiving transducer tangential movement unit and ultrasound wave receiving transducer vertical movement unit.Its overall positions relation is as described below: lower clamp is positioned over the upper clamp below, and the two fits tightly, and unites for other assembly to provide support; Be fixed in upper clamp one side apart from reading unit 30; Ultrasound wave receiving transducer tangential movement unit and ultrasonic emitting probe vertical movement unit are positioned over upper clamp inside in front and back respectively side by side; Ultrasound wave receiving transducer vertical movement unit is embedded in ultrasound wave receiving transducer tangential movement unit; Ultrasonic emitting probe, ultrasound wave receiving transducer place ultrasonic emitting probe vertical movement unit, inside, ultrasound wave receiving transducer vertical movement unit respectively.
(1) upper clamp
Shown in Fig. 2,3,4, the upper clamp in the present embodiment is a upper clamp frame 11 that comprises former and later two parts.Upper clamp frame 11 front portions comprise two sidewalls, and the rear portion comprises two sidewalls and a upper wall, is " recessed " shape on the external overall.The inboard along continuous straight runs correspondence in the two side of upper clamp frame 11 front portions is provided with receiving transducer tangential movement gathering sill 14; The inboard, two side at upper clamp frame 11 rear portions vertically correspondence is provided with transmitting probe vertical movement gathering sill 16; The upper wall centre position at upper clamp frame 11 rear portions be provided with two front and back arranged side by side, run through the upper clamp screw 15 in it.
(2) lower clamp
Lower clamp in the present embodiment is the lower clamp frame 21 that is shaped as rectangular parallelepiped, it is connected under the upper clamp frame 11 by connected modes commonly used such as pin joints, length is identical with upper clamp frame 11 with width, and being provided with the semi-circular recesses 22 that along continuous straight runs runs through lower clamp frame 21, this groove 22 is used to place cable.As preferred implementation, the size of groove 22 is applicable to that placing external diameter is the cable of 18～25mm.
As preferred version, upper clamp can not only comprise upper clamp frame 11, also comprises upper clamp handle 12, and its sidewall with upper clamp frame 11 anterior sides is connected; Lower clamp can not only comprise lower clamp frame 21, also comprises lower clamp handle 23, and it is connected with a side of lower clamp frame 21.Upper clamp frame 11 is connected with the mode of lower clamp handle 23 by pin joint, upper clamp key seat 13 is positioned on upper clamp frame 11 and the sidewall that upper clamp handle 12 links to each other, lower clamp key seat 24 is positioned on the lower clamp handle 23, and lower clamp pin 25 passes upper clamp handle 13 and lower clamp key seat 24.Above scheme can guarantee that upper clamp can open certain angle relatively with lower clamp, to place cable quickly and easily and not need to cut off tested cable.
As further improvement, can also be provided with locating button between upper clamp frame and the lower clamp frame, in the measuring process, for avoiding upper clamp and lower clamp that relative opening movement takes place, after the two closure, with the locating button fastening, make upper clamp, lower clamp in the course of the work tight connecting, relative motion does not take place.Locating button be installed as general knowledge as well known to those skilled in the art.
(3) apart from reading unit 30
In the present embodiment is a rule apart from reading unit 30, and it is by the side sidewall top that is connected and fixed on the upper clamp front portion commonly used such as stickup, riveted joint.
As further improvement, can also be electronic digital indicator apart from reading unit, slide calliper rule one end is fixed in the top of the anterior side sidewall of upper clamp frame, the other end is fixed in the top of a corresponding side sidewall of receiving transducer tangential movement piece, before and after the displacement of receiving transducer tangential movement piece occurred level, provide range reading respectively.
(4) ultrasonic emitting probe vertical movement unit
Ultrasonic emitting probe vertical movement unit comprises transmitting probe vertical movement piece 40, transmitting probe vertical movement guide rod 42 and transmitting probe stop nut 43.
Transmitting probe vertical movement piece 40 comprises two sidewalls and a upper wall, and integral body is " mouth " shape of open-ended, and its size can satisfy the rear portion that is embedded in upper clamp frame 11, and can carry out the motion of vertical direction therein.
The outside, two side of transmitting probe vertical movement piece 40 vertically correspondence is provided with transmitting probe vertical movement guiding projection 41, the transmitting probe vertical movement gathering sill 16 of its position and shape and upper clamp frame 11 is corresponding, makes transmitting probe vertical movement piece 40 carry out moving of vertical direction at the rear portion of upper clamp frame 11 along transmitting probe vertical movement gathering sill 16.
The upper wall of transmitting probe vertical movement piece 40 is provided with two transmitting probe screws that run through in it, and the position of emission screw is corresponding with the upper clamp screw 15 of upper clamp frame 11; Transmitting probe vertical movement guide rod 42 is carved with the column of screw thread for two ends up and down, transmitting probe vertical movement guide rod 42 lower ends form with the screw of transmitting probe vertical movement piece 40 upper wall relevant positions by screw thread and are connected, and the upper clamp screw 15 of upper clamp frame 11 is passed in the upper end of transmitting probe vertical movement guide rod; Each transmitting probe vertical movement guide rod 42 is furnished with a transmitting probe vertical movement stop nut, and transmitting probe vertical movement stop nut is placed upper clamp screw 15 tops, fixes by the upper end of screw thread and transmitting probe vertical movement guide rod.Described ultrasonic emitting probe is a kind of of ultrasonic probe, is general knowledge as well known to those skilled in the art.
As preferred version, as shown in Figure 5, described ultrasonic emitting probe vertical movement unit further comprises transmitting probe spring 44, its quantity is identical with the quantity of described transmitting probe vertical movement guide rod 42, each transmitting probe vertical movement guide rod 42 is with a transmitting probe spring 44, transmitting probe spring 44 is between upper clamp frame 11 and transmitting probe vertical movement piece 40, transmitting probe spring 44 is subjected to the outer surface in compression of upper clamp frame 11 inside surfaces and receiving transducer vertical movement piece 40 and deformation in the course of work, for transmitting probe vertical movement piece 40 provides stable downforce, guarantee ultrasonic emitting probe and reliable and stable the contacting of cable cover(ing) in the measuring process.
(5) ultrasound wave receiving transducer tangential movement unit
Ultrasound wave receiving transducer tangential movement unit in the present embodiment is a receiving transducer tangential movement piece 50.
Receiving transducer tangential movement piece 50 comprises two sidewalls and a upper wall, integral body is bottom open-ended " mouth " shape, its size can satisfy between its two side that is positioned over upper clamp frame 11 front portions, and can carry out the motion of horizontal direction in upper clamp frame 11 front portions.
The outside, the two side along continuous straight runs correspondence of receiving transducer tangential movement piece 50 is provided with receiving transducer tangential movement guiding projection 51, and it makes receiving transducer tangential movement piece 50 can carry out moving of horizontal direction along receiving transducer tangential movement gathering sill 14 under the support of lower clamp; The inboard, two side of receiving transducer tangential movement piece 50 vertically correspondence is provided with receiving transducer vertical movement gathering sill 52.
The centre position of receiving transducer tangential movement piece 50 upper walls be provided with two front and back arranged side by side run through receiving transducer first screw in it.
(6) ultrasound wave receiving transducer vertical movement unit
Ultrasound wave receiving transducer vertical movement unit in the present embodiment comprises receiving transducer vertical movement piece 60, receiving transducer vertical movement guide rod 62 and stop means.
Receiving transducer vertical movement piece 60 comprises two sidewalls and a upper wall, and integral body is " mouth " shape of bottom open-ended, and its size can satisfy it and be embedded in ultrasound wave receiving transducer tangential movement unit, and can carry out the motion of vertical direction therein.
The outside, two side of receiving transducer vertical movement piece 60 vertically correspondence is provided with receiving transducer vertical movement guiding projection 61, the receiving transducer vertical movement gathering sill 52 of its position and shape and receiving transducer tangential movement piece 50 is corresponding, makes receiving transducer vertical movement piece 60 carry out moving of vertical direction in receiving transducer tangential movement piece 50 inside along receiving transducer vertical movement gathering sill 52.
The upper wall of receiving transducer vertical movement piece 60 is provided with two receiving transducer second screws that run through in it, and receiving transducer first screw of its position and receiving transducer tangential movement piece 50 is corresponding; Receiving transducer vertical movement guide rod 62 is carved with the column of screw thread for part, two ends up and down, each receiving transducer vertical movement guide rod 62 lower end forms with receiving transducer second screw of receiving transducer vertical movement piece 60 upper wall relevant positions by screw thread and is connected mounting ultrasonic receiving transducer vertical movement piece 60; Each receiving transducer vertical movement guide rod 62 all passes receiving transducer first screw of receiving transducer tangential movement piece 50 simultaneously, and the stop means of its upper end and relevant position is by being threaded;
Stop means in the present embodiment is a nut.Each receiving transducer vertical movement guide rod 62 is furnished with a nut, and it is placed on tangential movement piece top, is connected with receiving transducer vertical movement guide rod 62 upper ends; Described ultrasound wave receiving transducer is a general knowledge as well known to those skilled in the art.
As preferred version, as shown in Figure 6, described ultrasound wave receiving transducer vertical movement unit also comprises receiving transducer spring 63, its quantity is identical with the quantity of described receiving transducer vertical movement guide rod 62, each receiving transducer vertical movement guide rod 62 is with a receiving transducer spring 63, receiving transducer spring 63 is between receiving transducer tangential movement piece 50 and receiving transducer vertical movement piece 60, receiving transducer spring 63 is subjected to the outer surface in compression of receiving transducer tangential movement piece 50 inside surfaces and receiving transducer vertical movement piece 60 and deformation in the course of work, for receiving transducer vertical movement piece 60 provides stable downforce, guarantee ultrasound wave receiving transducer and reliable and stable the contacting of cable cover(ing) in the measuring process.
This device course of work is as described below
(1) the ultrasonic emitting probe is connected with defectoscope with the ultrasound wave receiving transducer, the use of defectoscope is a general knowledge as well known to those skilled in the art;
(2) hold upper clamp handle 12 and lower clamp handle 23 it is opened tested cable and sheath thereof are put into quickly and easily the groove 22 of lower clamp frame 21, its optimal way is a small amount of as ultrasonic coupling agents such as machine oil or water for smearing in the tested zone of cable;
(3) fastening locating button makes upper clamp, lower clamp tight connecting;
(4) show records of values ultrasound wave receiving transducer tangential movement cell position according to distance reading unit 30;
(5) ultrasonic emitting probe, ultrasound wave receiving transducer vertical movement unit separately be under the effect of compression spring, makes to be positioned at its inner ultrasound wave receiving transducer and the ultrasound wave receiving transducer compresses tested cable cover(ing);
(6) pulse signal that receives that defectoscope is shown carries out reading;
(7) by the nut that promotes as stop means receiving transducer vertical movement piece 60 is raise, make to be positioned at its inner ultrasound wave receiving transducer and to break away from tested cable cover(ing);
(8) along continuous straight runs moves ultrasound wave receiving transducer tangential movement unit behind ad-hoc location, shows records of values ultrasound wave receiving transducer tangential movement cell position according to distance reading unit 30, calculates the distance of ultrasound wave receiving transducer tangential movement cell moving;
(9) discharge as the nut of stop means and receiving transducer vertical movement piece 60 is moved downward under the effect of compression spring, make to be positioned at its inner ultrasound wave receiving transducer and to compress tested cable cover(ing) once more;
(10) pulse signal that receives that defectoscope is shown carries out reading once more, calculates the poor of twice pulse signal transmission time that defectoscope shows;
(11) according to the distance of the ultrasound wave receiving transducer tangential movement cell moving of obtaining in the operating process, the twice pulse signal transmission time that shows with defectoscope poor, can measure the axial velocity of sound of cable cover(ing) under the prerequisite of damaged cable cover(ing) not, its concrete computing formula is as described below:
v＝Δn/Δd
In the formula, v is the axial velocity of sound of cable cover(ing), and Δ n is the distance of ultrasound wave receiving transducer tangential movement cell moving, Δ d poor for for twice pulse signal transmission time of defectoscope demonstration.
Embodiment 2
The difference of present embodiment and embodiment 1 is: as shown in Figure 1, described ultrasound wave receiving transducer tangential movement unit not only comprises receiving transducer tangential movement piece 50, also comprise the tangential movement control structure, it is by leading screw 53, leading screw seat 54 and guide screw movement deflector apron 55 are formed: guide screw movement deflector apron 55 is connected in two sidewalls of upper clamp frame 11 front portions, which is provided with screw, leading screw seat 54 is for being carved with the column of screw thread, leading screw 53 passes guide screw movement deflector apron 55 by leading screw seat 54 and is connected on the receiving transducer tangential movement piece 50 by drive block, and drive block makes the leading screw helical motion be converted to the rectilinear motion of horizontal direction.Wherein, drive block is a present technique field common practise.In addition, also can adopt other methods of attachment commonly used.
In the course of work, turn leading screw 53, precession, back-out by leading screw seat 54 screw thread on guide screw movement deflector apron 55, can drive the receiving transducer tangential movement piece 50 that links to each other with leading screw seat 54 and move thereupon, meticulous, convenient with the ultrasound wave receiving transducer vertical movement unit along continuous straight runs that is positioned at it, whole mobile effortlessly to realize ultrasound wave receiving transducer tangential movement unit.
Embodiment 3
The difference of present embodiment and embodiment 1 is: as shown in Figure 6, the stop means of described ultrasound wave receiving transducer vertical movement unit is not a nut, but comprise key seat 64, pin 65, cam 66, cam swing handle 67 and cam follower 68 and set nut: two key seats 64 relatively are fixed on the upper wall top of receiving transducer tangential movement piece 50, the cam of being made up of two elliptic wheel sheets 66 is supported between two key seats 64 by pin 65, cam swing handle 67 is connected on the pin 65 of a side between cam 66 and the key seat 64, cam follower 68 is for being provided with the rectangular parallelepiped of screw, receiving transducer first screw of the position of its screw and quantity and receiving transducer tangential movement piece 50 is corresponding, it passes the part that receiving transducer vertical movement guide rod 62 upwards exposes receiving transducer first screw, be supported between 66 two wheels of cam sheet, can be fixed on the screw thread of receiving transducer vertical movement guide rod 62; Set nut is separately fixed at two vertical movement guide rod upper ends of receiving transducer, for cam follower provides spacing.
In the course of work, rotating cam swing handle 67, during it goes to plumbness by horizontality, because the wheel sheet of cam 66 is oval, the difference of degree of eccentricity causes cam 66 to drive cam follower 68 and moves up, and then drive vertically rising of receiving transducer vertical movement piece 60, make ultrasonic detector break away from tested cable cover(ing) gradually; During cam swing handle 67 went to horizontality by plumbness, under the effect of compression spring, receiving transducer vertical movement piece 60 vertically descended, and makes the ultrasound wave receiving transducer compress tested cable cover(ing) gradually.This kind design is compared the stability that is more conducive to operate and measure state with nut as the technical scheme of stop means.
Embodiment 4
As shown in Figure 1, the difference of present embodiment and embodiment 1 is: the device of present embodiment comprises embodiment 2 described tangential movement control structures; Stop means is the embodiment 3 described stop means that comprise key seat 64, pin 65, cam 66, cam swing handle 67, cam follower 68 and set nut.
Below in conjunction with the accompanying drawings embodiment of the present utility model is described in detail, need to prove, the utility model is not limited to the foregoing description, in the ken that those of ordinary skills possessed, can also make many variations to it.For example, the quantity of upper clamp screw 15 among the embodiment 1 and receiving transducer first screw can be for one or more; Embodiment 2 described tangential movement control structures, embodiment 3 described stop means also are applicable to other embodiment.The measuring accuracy of this device can reach 2%.
Claims (15)
1. axial acoustic velocity measutement device of cable cover(ing), comprise ultrasonic emitting probe, ultrasound wave receiving transducer and, it is characterized in that: also comprise upper clamp, lower clamp, ultrasonic emitting probe vertical movement unit, ultrasound wave receiving transducer tangential movement unit, ultrasound wave receiving transducer vertical movement unit apart from reading unit (30); Close its position: lower clamp is positioned over the upper clamp below, and the two fits tightly, and unites for other assembly to provide support and the tested cable of clamping; Be fixed in upper clamp one side apart from reading unit (30); Ultrasound wave receiving transducer tangential movement unit and ultrasonic emitting probe vertical movement unit are positioned over upper clamp inside in front and back respectively side by side; Ultrasound wave receiving transducer vertical movement unit is embedded in ultrasound wave receiving transducer tangential movement unit; Ultrasonic emitting probe, ultrasound wave receiving transducer place ultrasonic emitting probe vertical movement unit, inside, ultrasound wave receiving transducer vertical movement unit respectively.
2. the axial acoustic velocity measutement device of a kind of cable cover(ing) according to claim 1 is characterized in that: described upper clamp comprises upper clamp frame (11):
Upper clamp frame (11) comprises former and later two parts, wherein, the front portion comprises two sidewalls, and the rear portion comprises two sidewalls and a upper wall, is " recessed " shape on the external overall: the anterior inboard along continuous straight runs correspondence in two side of upper clamp frame (11) is provided with receiving transducer tangential movement gathering sill (14); The inboard, two side at upper clamp frame (11) rear portion vertically correspondence is provided with transmitting probe vertical movement gathering sill (16); The upper wall centre position at upper clamp frame (11) rear portion is provided with at least one and runs through its interior upper clamp screw (15);
Lower clamp comprises lower clamp frame (21), and lower clamp frame (21) is a rectangular parallelepiped, is connected under the upper clamp frame (11), and length is identical with upper clamp frame (11) with width, and is provided with the semi-circular recesses (22) that along continuous straight runs runs through lower clamp frame (21).
3. the axial acoustic velocity measutement device of a kind of cable cover(ing) according to claim 2 is characterized in that: described ultrasonic emitting probe vertical movement unit comprises transmitting probe vertical movement piece (40), transmitting probe vertical movement guide rod (42) and transmitting probe vertical movement stop nut (43):
Transmitting probe vertical movement piece (40) comprises two sidewalls and a upper wall, integral body is open-ended " mouth " shape, its size can satisfy the rear portion that is embedded in upper clamp frame (11), and can carry out the motion of vertical direction therein, transmitting probe is placed on vertical movement piece inside, forms a fixed connection by screw and vertical movement piece;
The outside, two side of transmitting probe vertical movement piece (40) vertically correspondence is provided with transmitting probe vertical movement guiding projection (41), the transmitting probe vertical movement gathering sill (16) of its position and shape and upper clamp frame (11) is corresponding, makes transmitting probe vertical movement piece (40) carry out the motion of vertical direction at the rear portion of upper clamp frame (11) along transmitting probe vertical movement gathering sill (16);
The upper wall of transmitting probe vertical movement piece (40) is provided with screw, and the upper clamp screw (15) of its quantity and position and upper clamp frame (11) is corresponding;
Transmitting probe vertical movement guide rod (42) is carved with the column of screw thread for two ends up and down, quantity is identical with the upper clamp screw (15) of upper clamp frame (11), transmitting probe vertical movement guide rod (42) lower end forms with the screw of transmitting probe vertical movement piece (40) upper wall relevant position by screw thread and is connected, and the upper clamp screw (15) of upper clamp frame (11) is passed in the upper end of transmitting probe vertical movement guide rod;
Each transmitting probe vertical movement guide rod (42) is furnished with a transmitting probe vertical movement stop nut, and transmitting probe vertical movement stop nut is placed upper clamp screw (15) top, fixes by the upper end of screw thread and transmitting probe vertical movement guide rod.
4. the axial acoustic velocity measutement device of a kind of cable cover(ing) according to claim 2 is characterized in that: described ultrasound wave receiving transducer tangential movement unit comprises receiving transducer tangential movement piece (50):
Receiving transducer tangential movement piece (50) comprises two sidewalls and a upper wall, integral body is bottom open-ended " mouth " shape, its size can satisfy it and be positioned between the anterior two side of upper clamp frame (11), and can carry out the motion of horizontal direction in upper clamp frame (11) front portion;
The outside, the two side along continuous straight runs correspondence of receiving transducer tangential movement piece (50) is provided with receiving transducer tangential movement guiding projection (51), and it makes receiving transducer tangential movement piece (50) can carry out the motion of horizontal direction along receiving transducer tangential movement gathering sill (14) under the support of lower clamp; The inboard, two side of receiving transducer tangential movement piece (50) vertically correspondence is provided with receiving transducer vertical movement gathering sill (52);
The centre position of receiving transducer tangential movement piece (50) upper wall is provided with at least one and runs through its interior receiving transducer first screw.
5. the axial acoustic velocity measutement device of a kind of cable cover(ing) according to claim 4 is characterized in that: described ultrasound wave receiving transducer vertical movement unit comprises receiving transducer vertical movement piece (60), receiving transducer vertical movement guide rod (62) and stop means:
Receiving transducer vertical movement piece (60) comprises two sidewalls and a upper wall, and integral body is " mouth " shape of bottom open-ended, and its size can satisfy it and be embedded in ultrasound wave receiving transducer tangential movement unit, and can carry out the motion of vertical direction therein; Receiving transducer is placed on vertical movement piece inside, forms a fixed connection by screw and vertical movement piece;
The outside, two side of receiving transducer vertical movement piece (60) vertically correspondence is provided with receiving transducer vertical movement guiding projection (61), the receiving transducer vertical movement gathering sill (52) of its position and shape and receiving transducer tangential movement piece (50) is corresponding, makes receiving transducer vertical movement piece (60) carry out the motion of vertical direction in receiving transducer tangential movement piece (50) inside along receiving transducer vertical movement gathering sill (52);
The upper wall of receiving transducer vertical movement piece (60) is provided with receiving transducer second screw, and receiving transducer first screw of its position and quantity and receiving transducer tangential movement piece (50) is corresponding;
Receiving transducer vertical movement guide rod (62) is carved with the column of screw thread for part, two ends up and down, its quantity is identical with receiving transducer first screw of receiving transducer tangential movement piece (50), each receiving transducer vertical movement guide rod (62) lower end forms with receiving transducer second screw of receiving transducer vertical movement piece (60) upper wall relevant position by screw thread and is connected mounting ultrasonic receiving transducer vertical movement piece (60); Each receiving transducer vertical movement guide rod (62) all passes receiving transducer first screw of receiving transducer tangential movement piece (50), and the stop means of its upper end and relevant position is by being threaded;
Stop means is placed on the top of receiving transducer tangential movement piece (50), with receiving transducer vertical movement guide rod (62) upper end by being threaded, so that receiving transducer vertical movement piece can only move up and down in the certain space scope.
6. the axial acoustic velocity measutement device of a kind of cable cover(ing) according to claim 1, it is characterized in that: described is the rule that is fixed in the top of the anterior side sidewall of upper clamp frame (11) apart from reading unit (30), or electronic digital indicator, electronic digital indicator one end is fixed in the top of the anterior side sidewall of upper clamp frame (11), the other end is fixed in the top of a corresponding side sidewall of receiving transducer tangential movement piece (50), before and after the displacement of receiving transducer tangential movement piece occurred level, provide range reading respectively.
7. the axial acoustic velocity measutement device of a kind of cable cover(ing) according to claim 2 is characterized in that: the quantity of the upper clamp screw (15) of described upper clamp frame (11) is two, is arranged at the centre position on upper clamp frame (11) top before and after it.
8. the axial acoustic velocity measutement device of a kind of cable cover(ing) according to claim 2 is characterized in that: described upper clamp also comprises upper clamp handle (12), and its sidewall with the anterior side of upper clamp frame (11) is connected; Described lower clamp also comprises lower clamp handle (23), and its side with lower clamp frame (21) is connected.
9. the axial acoustic velocity measutement device of a kind of cable cover(ing) according to claim 8, it is characterized in that: upper clamp frame (11) is connected with the mode of lower clamp handle (23) by pin joint, upper clamp key seat (13) is positioned on upper clamp frame (11) and the sidewall that upper clamp handle (12) links to each other, lower clamp key seat (24) is positioned on the lower clamp handle (23), and lower clamp pin (25) passes upper clamp key seat (13) and lower clamp key seat (24); Be provided with locating button between upper clamp frame (11) and the lower clamp frame (21), the locking after being used for the lower clamp frame and coincideing is with fixing.
10. the axial acoustic velocity measutement device of a kind of cable cover(ing) according to claim 3, it is characterized in that: described ultrasonic emitting probe vertical movement unit also comprises transmitting probe spring (44), its quantity is identical with the quantity of described transmitting probe vertical movement guide rod (42), each transmitting probe vertical movement guide rod (42) is with a transmitting probe spring (44), and transmitting probe spring (44) is positioned between upper clamp frame (11) and the transmitting probe vertical movement piece (40).
11. the axial acoustic velocity measutement device of a kind of cable cover(ing) according to claim 4, it is characterized in that: the quantity of receiving transducer first screw of described receiving transducer tangential movement piece (50) is two, is arranged at the centre position of receiving transducer tangential movement piece (50) upper wall before and after it.
12. the axial acoustic velocity measutement device of a kind of cable cover(ing) according to claim 4, it is characterized in that: described ultrasound wave receiving transducer tangential movement unit also comprises the tangential movement control structure, it is by leading screw (53), leading screw seat (54) and guide screw movement deflector apron (55) are formed: guide screw movement deflector apron (55) is connected on anterior two sidewalls of upper clamp frame (11), which is provided with screw, leading screw seat (54) is for being carved with the column of screw thread, leading screw (53) passes guide screw movement deflector apron (55) by leading screw seat (54) and is connected on the receiving transducer tangential movement piece (50) by drive block, and drive block makes the leading screw helical motion be converted to the rectilinear motion of horizontal direction.
13. the axial acoustic velocity measutement device of a kind of cable cover(ing) according to claim 5, it is characterized in that: described ultrasound wave receiving transducer vertical movement unit also comprises receiving transducer spring (63), its quantity is identical with the quantity of described receiving transducer vertical movement guide rod (62), each receiving transducer vertical movement guide rod (62) is with a receiving transducer spring (63), and receiving transducer spring (63) is positioned between receiving transducer tangential movement piece (50) and the receiving transducer vertical movement piece (60).
14. according to claim 5 or the axial acoustic velocity measutement device of 13 described a kind of cable cover(ing)s, it is characterized in that: described stop means is a nut.
15. according to claim 5 or the axial acoustic velocity measutement device of 13 described a kind of cable cover(ing)s, it is characterized in that: described stop means comprises key seat (64), pin (65), cam (66), cam swing handle (67), cam follower (68) and set nut: two key seats (64) are fixed on the upper wall top of receiving transducer tangential movement piece (50), the cam of being made up of two wheel sheets (66) is supported between two key seats (64) by pin (65), cam swing handle (67) is connected on the pin (65) of a side between cam (66) and the key seat (64), cam follower (68) is for being provided with the rectangular parallelepiped of screw, receiving transducer first screw of the position of its screw and quantity and receiving transducer tangential movement piece (50) is corresponding, it passes the part that receiving transducer vertical movement guide rod (62) upwards exposes receiving transducer first screw, be supported between (66) two wheels of cam sheet, two set nuts are separately fixed at two receiving transducer vertical movement guide rod upper ends, for cam follower (68) provides spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020622598.5U CN201935901U (en) | 2010-11-23 | 2010-11-23 | Axial acoustic velocity measuring device of cable sheaths |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020622598.5U CN201935901U (en) | 2010-11-23 | 2010-11-23 | Axial acoustic velocity measuring device of cable sheaths |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201935901U true CN201935901U (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020622598.5U Expired - Lifetime CN201935901U (en) | 2010-11-23 | 2010-11-23 | Axial acoustic velocity measuring device of cable sheaths |
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| Country | Link |
|---|---|
| CN (1) | CN201935901U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478550A (en) * | 2010-11-23 | 2012-05-30 | 国核电站运行服务技术有限公司 | Device for measuring axial acoustic velocity of cable sheath |
-
2010
- 2010-11-23 CN CN201020622598.5U patent/CN201935901U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478550A (en) * | 2010-11-23 | 2012-05-30 | 国核电站运行服务技术有限公司 | Device for measuring axial acoustic velocity of cable sheath |
| CN102478550B (en) * | 2010-11-23 | 2014-03-05 | 国核电站运行服务技术有限公司 | Device for measuring axial acoustic velocity of cable sheath |
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