阅读说明：本技术 一种旋转水浸超声波换能器 (A kind of rotation water logging ultrasonic transducer ) 是由 金晓明 吴金锋 陈骋 李炳乾 孔晨光 胡晨旭 汪春晓 李守彬 马晶晶 张鹏飞 于 2019-08-22 设计创作，主要内容包括：本发明公开了一种旋转水浸超声波换能器,其包括中空的芯轴、安装于芯轴外壁上的探头、套设于芯轴上的正极滑环和负极滑环、设于正极滑环和负极滑环之间用于将两者绝缘的芯套、轴承、套设于滑套组合轴承外侧的外壳、从外壳的外侧穿至外壳的内侧且分别于正极滑环和负极滑环导通连接的刷丝线缆,轴承的内圈与芯轴固定连接,滑套组合卡紧于两端的两个内圈之间并随内圈同步转动,轴承的外圈与外壳的相固定连接。高频水浸点聚焦换能器为窄脉冲宽频带换能器,通过与换能器组件装配在一起,可以进行高速旋转检测。检测时,将被检管材穿入芯轴,换能器焦点位于管壁,通过刷丝线缆与滑环接触保证换能器在高速旋转时电信号激励及接收稳定。(The invention discloses a kind of rotation water logging ultrasonic transducers, it includes hollow mandrel, the probe being installed on mandrel outer wall, the positive slip ring and cathode slip ring being sheathed on mandrel, core retainer plate between positive slip ring and cathode slip ring for the two to insulate, bearing, the shell being sheathed on the outside of sliding bush combination bearing, it is worn on the outside of shell to the inside of shell and respectively at the brush filament cable of positive slip ring and the conducting connection of cathode slip ring, the inner ring of bearing is fixedly connected with mandrel, sliding bush combination is clamped between two inner rings at both ends and rotates synchronously with inner ring, the outer ring of bearing is mutually fixedly connected with shell.High frequency water logging point focusing energy converter can carry out high speed rotation detection by being assembled together with transducer assemblies for burst pulse broadband energy converter.When detection, tested tubing is penetrated into mandrel, energy transducer focus is located at tube wall, contacts by brush filament cable with slip ring and guarantees that energy converter when rotating at high speed stablize by electric signal excitation and reception.)

1. a kind of rotation water logging ultrasonic transducer, it is characterised in that: it includes hollow mandrel, is installed on the mandrel outer wall On probe, the positive slip ring that is sheathed on the mandrel and cathode slip ring, be set to the positive slip ring and the cathode slip ring Between for core retainer plate that the two insulate, the core retainer plate is sheathed on the mandrel, the core retainer plate, the anode slip ring and cathode Slip ring forms sliding bush combination, and the energy converter further includes the bearing for being set to the sliding bush combination both ends, is sheathed on the sliding sleeve group It closes the shell on the outside of the bearing, wear on the outside of shell to the inside of shell and respectively at the positive slip ring and cathode slip ring The brush filament cable of connection is connected, the inner ring of the bearing is fixedly connected with the mandrel, and the sliding bush combination is clamped in both ends It is rotated synchronously between two inner rings and with inner ring, the outer ring of the bearing is mutually fixedly connected with the shell.

2. rotation water logging ultrasonic transducer according to claim 1, it is characterised in that: the sliding bush combination both ends difference Equipped with the adjusting ring for adjusting the inner ring Yu the sliding bush combination pressing force, the adjusting ring is sheathed on the mandrel On.

3. rotation water logging ultrasonic transducer according to claim 1, it is characterised in that: the shell include shell ontology with And pressing plate, its cylindrical side wall of the shell body party have smooth convex block, and perforation shell ontology is offered on the convex block The first through hole in interior outside, the platen cover is set to the top of the first through hole and is located at the outside of the shell ontology, described Pressing plate is equipped with multiple second through-holes passed through for the brush filament cable.

4. rotation water logging ultrasonic transducer according to claim 3, it is characterised in that: the energy converter further includes that lid is set End cap above the pressing plate offers third through-hole corresponding with the first through hole on the end cap.

5. rotation water logging ultrasonic transducer according to claim 3, it is characterised in that: the third through-hole is opened in institute It states on the upper and lower end face of end cap, the side of the end cap offers the fourth hole stretched out for the brush filament cable.

6. rotation water logging ultrasonic transducer according to claim 1, it is characterised in that: the side wall of the mandrel is equipped with It pops one's head in mounting base, offers mounting groove in the probe mounting base, connection is offered on the side wall of the mandrel in the mounting groove The connecting hole of the mandrel inside and the mounting groove.

7. rotation water logging ultrasonic transducer according to claim 1, it is characterised in that: the chip of the probe uses zirconium Lead titanates piezoelectric chip, front end casting epoxy resin lens, chip rear end are Nian Jie with piezoelectric chip using high-damping backing block, Realize 1.5 period of pulse width, frequency bandwidth > 90%.

8. rotation water logging ultrasonic transducer according to claim 1, it is characterised in that: the brush filament cable connects with sliding sleeve The end of touching is divided into two groups of brush heads, and every group of brush head has positive brush filament the end of a thread and negative brush filament the end of a thread, positive brush filament the end of a thread and negative brush filament line Head is connected with positive slip ring and cathode slip ring respectively.

Technical field

The invention belongs to nuclear power testing equipment field, in particular to a kind of rotation water logging ultrasonic transducer.

Background technique

Pressurized-water reactor nuclear power plant reactor control rod component (Rod Cluster Control Assembly, hereinafter referred to as RCCA it) is in the special operation condition that high temperature, high radioactivity, reciprocating machine move, metal material heat ageing phenomenon and guiding for a long time Under the contact wear operating condition of plate, it may result in military service certain time and the defects of swelling, abrasion, crackle occur.Periodically to RCCA Ultrasound detection is carried out, qualitative and quantitative assessment is carried out to existing defect, and by checking comparing with history, is evaluated and tested out The speed and trend of existing swelling, abrasion and crackle, determine whether to continue to be on active service, it is ensured that the safe and economic operation of nuclear power station ensures Nuclear safety.

Conventional immersed ultrasonic test energy converter generallys use energy converter and fixes on detection means, using pulse reflection method pair Tubing carries out ultrasound detection.Since RCCA component is cluster combination, single pipe stick can not rotate, therefore can only be using probe rotation Mode carries out pipe stick detection.

Summary of the invention

The object of the present invention is to provide a kind of rotation water logging ultrasounds that can be realized probe rotation mode and carry out pipe stick detection Wave transducer.

In order to solve the above technical problems, the present invention adopts the following technical scheme: a kind of rotation water logging ultrasonic transducer, It is sliding including hollow mandrel, the probe being installed on the mandrel outer wall, the positive slip ring being sheathed on the mandrel and cathode Ring, the core retainer plate between the positive slip ring and the cathode slip ring for the two to insulate, the core retainer plate are sheathed on described On mandrel, the core retainer plate, the positive slip ring and cathode slip ring form sliding bush combination, and the energy converter further includes being set to the cunning The bearing at set combination both ends, the shell being sheathed on the outside of bearing described in the sliding bush combination are worn on the outside of shell to shell Inside and the brush filament cable connected respectively at the positive slip ring and the conducting of cathode slip ring, the inner ring of the bearing and the mandrel It is fixedly connected, the sliding bush combination is clamped between two inner rings at both ends and rotates synchronously with inner ring, the bearing Outer ring is mutually fixedly connected with the shell.

Optimization, the sliding bush combination both ends, which are respectively provided with, adjusts the inner ring and the sliding bush combination pressing force Ring is adjusted, the adjusting ring is sheathed on the mandrel.

Optimization, the shell includes shell ontology and pressing plate, its cylindrical side wall of the shell body party with flat Whole convex block offers the first through hole of perforation this inside and outside side of shell on the convex block, and it is logical that the platen cover is set to described first The top in hole and the outside for being located at the shell ontology, the pressing plate are equipped with multiple second passed through for the brush filament cable and lead to Hole.

Further, the energy converter further includes the end cap being covered on above the pressing plate, offered on the end cap with The corresponding third through-hole of the first through hole.

Further, the third through-hole is opened on the upper and lower end face of the end cap, and the side of the end cap offers The fourth hole stretched out for the brush filament cable.

Optimization, the side wall of the mandrel is equipped with probe mounting base, offers mounting groove in the probe mounting base, institute State the connecting hole for offering and being connected to inside the mandrel with the mounting groove on the side wall of the mandrel in mounting groove.

Optimization, the chip of the probe uses lead zirconate titanate piezoelectric chip, front end casting epoxy resin lens, thereafter End is Nian Jie with piezoelectric chip using high-damping backing block, realizes 1.5 period of pulse width, frequency bandwidth > 90%.

Optimization, the end that the brush filament cable is contacted with sliding sleeve is divided into two groups of brush heads, and every group of brush head has positive brush filament line Head and negative brush filament the end of a thread, positive brush filament the end of a thread and negative brush filament the end of a thread are connected with positive slip ring and cathode slip ring respectively.

Be burst pulse broadband energy converter the beneficial effects of the present invention are: high frequency water logging point focusing energy converter, by with Transducer assemblies are assembled together, and can carry out high speed rotation detection.When detection, tested tubing is penetrated into mandrel, energy converter is burnt Point is located at tube wall, is contacted by brush filament cable with slip ring and guarantees that energy converter when rotating at high speed stablize by electric signal excitation and reception.

Detailed description of the invention

Attached drawing 1 is perspective view of the invention (probe is not shown)；

Attached drawing 2 is the perspective view when present invention removes mandrel and shell；

Attached drawing 3 is the perspective view of shell of the present invention；

Attached drawing 4 is the structure diagram of probe.

Specific embodiment

Embodiment shown in reference to the accompanying drawing is described in detail below the present invention:

As shown in Figure 1, rotating the probe that water logging ultrasonic transducer includes hollow mandrel 1, is installed on 1 outer wall of mandrel 0, the positive slip ring 81 on mandrel 1 and cathode slip ring 82 are sheathed on, is set between positive slip ring 81 and cathode slip ring 82 for inciting somebody to action The core retainer plate 7 of the two insulation, core retainer plate 7 are sheathed on mandrel 1, and core retainer plate 7, positive slip ring 81 and cathode slip ring 82 form sliding bush combination 83, energy converter further include set on 83 both ends of sliding bush combination bearing 5, be sheathed on the outside of 83 bearing of sliding bush combination 5 shell 4, from The outside of shell 4 wear to the inside of shell 4 and respectively at positive slip ring 81 and cathode slip ring 82 conducting connection brush filament cable 3, It is respectively arranged on 83 both ends of sliding bush combination and the adjusting ring 6 for adjusting inner ring 51 Yu 83 pressing force of sliding bush combination.

As shown in Fig. 2, the end that brush filament cable 3 is contacted with sliding sleeve is divided into two groups of brush heads, every group of brush head has positive brush filament line First 31 and negative brush filament the end of a thread 32, positive brush filament the end of a thread 31 and negative brush filament the end of a thread 32 led respectively with positive slip ring 81 and cathode slip ring 82 It is logical.

The inner ring 51 of bearing 5 is fixedly connected with mandrel 1, and sliding bush combination 83 is clamped between two adjusting rings 6 at both ends, is adjusted Section ring 6 and sliding bush combination 83 is whole is clamped between two inner rings 51 and rotates synchronously with inner ring 51, the outer ring 52 of bearing 5 with Shell 4 is mutually fixedly connected, and is adjusted ring 6 and is sheathed on mandrel 1.

As shown in figure 3, shell 4 includes that shell ontology 41 and its cylindrical side wall of pressing plate 42,41 main body of shell ontology have Smooth convex block 43 offers the first through hole 44 in outside in perforation shell ontology 41 on convex block 43, and it is logical that pressing plate 42 is covered on first The top in hole 44 and the outside for being located at shell ontology 41, pressing plate 42 are equipped with multiple second through-holes 45 passed through for brush filament cable 3.It changes Energy device further includes the end cap 2 for being covered on 42 top of pressing plate, offers third through-hole corresponding with first through hole 44 on end cap 2 21.Third through-hole 21 is opened on the upper and lower end face of end cap 2, and the side of end cap 2 offers the four-way stretched out for brush filament cable 3 Hole 22.

The side wall of mandrel 1 is equipped with probe mounting base 9, mounting groove 91 is offered in mounting base 9 of popping one's head in, in mounting groove 91 The connecting hole 92 of 1 inside and mounting groove of connection mandrel is offered on the side wall of mandrel 1.Mounting groove 91 is cylindrical, and diameter is big Form step in the diameter of connecting hole, therefore between connecting hole 92 and mounting groove 91, pop one's head in 0 rear end 01 load be set to step on, Front end 02 passes through connecting hole 92 and contacts with tubing to be checked, is also provided with cabling channel 93 and lock hole on the side wall for mounting base 9 of popping one's head in 94, as shown in figure 4, probe 0 rear end be fixed in mounting groove 91 by the bolt in lock hole 94, pop one's head in 0 chip use zirconium Lead titanates piezoelectric chip, front end casting epoxy resin lens, its rear end is Nian Jie with piezoelectric chip using high-damping backing block, real Existing 1.5 period of pulse width, frequency bandwidth > 90%.

Working principle: inner ring, adjusting ring, positive slip ring, core retainer plate, cathode slip ring, adjusting ring, inner ring form an entirety and consolidate Surely it is set on the mandrel for being fixedly installed with energy converter and is rotated on tubing to be checked with mandrel, outer ring is opposite with shell to test tube Material is fixed, is contacted by brush filament cable with slip ring and guarantees that energy converter when rotating at high speed stablize by electric signal excitation and reception.

The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention Equivalent change or modification made by spirit, should be covered by the protection scope of the present invention.