TWI384078B - An adapter for the eddy current detection device - Google Patents

Description

Adapter for eddy current detecting device

The present invention relates to an adapter, and more particularly to an adapter for an eddy current detecting device.

Referring to FIG. 1 , the existing eddy current detecting device 1 is suitable for measuring the liquid level of the molten steel mold during the steel making process, and is one of the control parameters when the molten steel is cast. The eddy current detecting device 1 includes one. a cooler 11 for conveying a cooling gas, an adapter 12 connected to one end of the cooler 11, a detecting unit 13 connected to the adapter 12, and a cover covering the periphery of the detecting unit 13 Protection unit 14.

Referring to FIG. 2, the adapter 12 has a bottom surface 121 connecting the detecting unit 13, a top surface 122 opposite to the bottom surface 121, a surrounding surface 123 surrounding the top surface 122 and the periphery of the bottom surface 121, and a self-contained surface. The bottom surface 121 extends upwardly from the cooling channel 124 , and extends from the surrounding surface 123 to communicate with the cooling channel 124 and the connecting channel 125 of the cooler 11 , and extends upwardly from the bottom surface 121 to communicate with the connecting channel 125 . Detection pipeline 126.

The detecting unit 13 has a shaft 131 connected to the bottom surface 121 of the adapter 12, a coil shaft 132 disposed on the shaft 131 and wound with a wire 133, and a coil shaft 132 disposed in the connecting passage 125. a wire lap 134, and a coaxial cable 135 extending through the connecting channel 125 and electrically connected to the wire lap 134. One end of the wire 133 is disposed on the detecting pipe 126 and is connected to the wire The 134 is electrically connected to the coaxial cable 135, and the cooling gas in the chiller 11 can pass through the connecting channel 125 and the cooling channel 124 of the Adapter 12 to cool the detecting unit 13. The protection unit 14 includes a plurality of ceramic protection tubes 141 covering the outer circumference of the shaft 131 and the coil shaft 132, and a ceramic outer cover 142 covering the top surface 122 of the adapter 12.

Although the existing eddy current detecting device 1 can measure the liquid level of the molten steel mold during the steel making process, the following shortcomings still need to be improved;

1. The error is large: since the wire lap 134 of the detecting unit 13 is located in the connecting channel 125 of the adapter 12, and the connecting channel 125 communicates with the cooling channel 124 and the cooler 11, The junction of the wire 133 and the coaxial cable 135 is directly exposed to the cooling gas of the cooler 11, causing the junction of the coaxial cable 135 and the wire 133 to be easily disturbed by the airflow of the cooling gas, thereby causing interference noise and causing measurement. The error value is large.

2. High difficulty in production: Continued above, in order to prevent the joint between the coaxial cable 135 and the wire 133 from being disturbed by the airflow of the cooling gas, it is practical to weld the joints of the coaxial cable 135 and the wire 133 to each other to be fixed thereto. The wire lap 134 is sealed with a hard resin to prevent interference of the noise. However, since the wire lap 134 is located in the connecting channel 125, it is easy to burn to the coaxial cable 135 during soldering. The outer skin not only prevents the interference of the noise, but also causes the coaxial cable 135 to be damaged. Moreover, the fluidity of the hard resin is high and the solidification is not easy. The slight inadvertently, the cooling flow passage 124 or the connecting passage 125 is easily blocked to affect the cooling effect.

3. Maintenance is not easy: Continued above, since the wire lap 134 is located in the connecting passage 125, when the wire lap 134 needs to be repaired or the coaxial cable 135 is replaced, the difficulty in disassembly is not easy to cause maintenance. high.

Therefore, how to improve the accuracy of the eddy current detecting device 1 while taking into account the convenience of production and maintenance has become a major problem to be solved by related companies.

Accordingly, it is an object of the present invention to provide an adapter that is highly accurate and that is easy to manufacture and maintain for use in eddy current sensing devices.

Therefore, the present invention is used for an eddy current detecting device adapter, the eddy current detecting device includes a detector connected to the adapter, and is connected to the adapter for inputting cooling gas a detector for cooling the detector, the detector includes a detection body connected to the adapter and wound with a wire, and a cable electrically connected to the detection body, and the adapter includes An adapter, a first-line lap, a first-class unit, and a cover.

The adapter has a bottom surface connected to the detecting body, a top surface opposite to the bottom surface, a surrounding surface surrounding the top surface and the periphery of the bottom surface, and a fitting groove formed on the top surface. The wire lap plate is detachably disposed in the fitting groove.

The flow channel unit has a main flow channel passing through the surrounding surface of the adapter and communicating with the cooler, a secondary flow path extending from the bottom surface of the adapter to the top surface and communicating with the main flow channel, and a self-flow path The bottom surface of the adapter extends toward the top surface and communicates with the detecting passage of the fitting groove, and an output passage that is disposed on the surrounding surface of the adapter and communicates with the cooler and the fitting groove, wherein The mainstream prop has an inlet end formed on the surrounding surface facing the cooler, and the output passage has a inlet end spaced apart from the inlet end and facing the inlet end of the cooler, and the detector The measuring channel is connected to the main channel from the bottom surface and spaced apart from the sub-channel to communicate with the fitting groove. The cover is detachably mounted on the top surface of the adapter.

One end of the wire wound on the detecting body is disposed in the detecting channel and electrically connected to the wire lap disk, and the cable is inserted into the output channel and electrically connected to the wire lap plate And electrically connected to the wire, the cooling gas passes through the main channel, the secondary channel and the output channel and the detection channel to respectively cool the detecting body and the wire and the cable.

The utility model has the advantages that the wire lap plate is disposed in the fitting groove, so that the joint of the wire and the cable is offset from the main flow channel and the secondary flow channel, thereby effectively avoiding interference caused by the airflow disturbed by the cooling gas. In addition, the fitting groove is formed on the top surface of the adapter to facilitate the engagement of the wire with the cable, and is also convenient for maintenance.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Referring to FIG. 3 and FIG. 4, a preferred embodiment of the adapter 2 for an eddy current detecting device of the present invention comprises an adapter 21, a wire lap 22, a positioning member 23, a first-stage channel unit 24, and A cover 25 (shown in Figure 5).

The adapter base 21 has a bottom surface 211, a top surface 212 opposite to the bottom surface 211, a surrounding surface 213 surrounding the top surface 212 and the periphery of the bottom surface 211, and a fitting groove 214 formed in the top surface 212. And a positioning groove 215 formed on the top surface 212 at a distance from the fitting groove 214; the wire lap disk 22 is detachably disposed in the fitting groove 214; and the positioning member 23 is detachable The ground is disposed in the positioning slot 215.

The flow path unit 24 has a main flow path 241 through which the surrounding surface 213 of the adapter seat 21 is disposed, a secondary flow path extending from the bottom surface 211 of the adapter base 21 toward the top surface 212 and communicating with the main flow path 241. 242. A detection channel 243 extending from the bottom surface 211 of the adapter 21 toward the top surface 212 and communicating with the fitting groove 214, and a surrounding surface 213 of the adapter seat 21 An output channel 244 of the slot 214, wherein the main channel 241 has an inlet end 245 formed on the surrounding surface 213, and the output channel 244 has a spacing formed on the surrounding surface 213 spaced apart from the inlet end 245. The inlet end 246 is spaced apart from the secondary flow path 242 and extends through the main flow path 241 from the bottom surface 211 to communicate with the fitting groove 214. The cover 25 (shown in FIG. 5 ) is detachably mounted on the top surface 212 of the adapter 21 , and the positioning slot 215 is also in communication with the output channel 244 .

Referring to FIGS. 4 and 5, the adapter 2 is applied to an eddy current detecting device 3, and the eddy current detecting device 3 includes a detector 31 connected to the bottom surface 211 of the adapter 21. a cooling unit 32 connected to the surrounding surface 213 of the adapter 21 for inputting cooling gas to cool the detector 31, and a protection unit 33 for protecting the detector 31, wherein the mainstream The inlet end 245 of the passage 241 and the inlet end 246 of the output passage 244 face and communicate with the cooler 32.

The detecting device 31 has a detecting body 311 connected to the secondary flow path 242 and having a wire 312 wound thereon, and a cable 313 electrically connected to the detecting body 311. The detecting body 311 has a connection. a hollow shaft portion 314 in the secondary flow path 242, and a coil portion 315 disposed on the end portion of the shaft portion 314 opposite to the adapter seat 21 and wound with a wire 312, one end of the wire 312 Is wound around the coil portion 315, and the other end is disposed through the detecting channel 243 and electrically connected to the wire lapping disk 22 disposed in the fitting groove 214; and the cable 313 is extended to the output The wire 244 is electrically connected to the wire lap 22, and is electrically connected to the wire 312. The positioning member 23 is disposed on the positioning groove 215 and presses the cable 313 extending through the output channel 244. The function of the cable 313 is located. The protection unit 33 includes a plurality of ceramic protection tubes 331 that are spaced over the outer periphery of the detection body 311, and a ceramic outer cover 332 that covers the cover 25.

With the above design, the eddy current detecting device 3 of the adaptor 2 of the present invention has the following advantages in practical use:

1. High precision: the wire lap plate 22 is disposed in the fitting groove 214, and cooperates with the spaced-apart main flow channel 241 and the output channel 244 so that the junction of the cable 313 and the wire 312 can be avoided. The mainstream channel 241 of the large amount of cooling gas effectively prevents the junction of the cable 313 and the wire 312 from being disturbed by the cooling gas to generate interference noise, improving the detection accuracy, and a small amount of cooling gas can also flow into the output channel 244. The fitting groove 214 is configured to cool the wire lap disk 22 and the cable 313 and the wire 312.

2. Easy to make: As described above, since the wire lap 22 is disposed in the fitting groove 214 formed in the top surface 212 of the adapter 21, it is convenient and simple to join the cable 313 and the wire 312. Moreover, the cable 313 or the wire 312 is relatively less damaged. In addition, since the junction of the cable 313 and the wire 312 has bypassed the main channel 241 having a large amount of cooling gas, it is only necessary to use a soft texture and prevent The coating of the high permeability, low fluidity and fast curing is applied and fixed, so that the joint of the cable 313 and the wire 312 is kept clean, and the main channel 241, the secondary flow path 242, the output channel 244 and the detection channel are not easily blocked. 243, so the production is relatively simple.

3. Easy maintenance: Since the above-mentioned lap plate 22 is disposed in the fitting groove 214 formed in the top surface 212, it is easier to disassemble and repair. In addition, the silicone resin is easier to remove than the hard resin, so it is replaced or repaired. The wire 312 and the cable 313 are also relatively easy.

In summary, the adapter 2 of the present invention utilizes the wire lap disk 22 in the fitting groove 214 and cooperates with the spaced-apart main channel 241 and the output channel 244 to make the cable 313 and the wire 312. The junction can avoid the main channel 241 with a large amount of cooling gas, effectively avoiding the interference of the cable 313 and the wire 312 to disturb the noise caused by the cooling gas, so as to improve the detection accuracy, and at the same time, the cable is engaged. The wire 313 and the wire 312 are also relatively convenient and simple to repair, so the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

1‧‧‧ eddy current detecting device

11‧‧‧ cooler

12‧‧‧Adapter

121‧‧‧ bottom

122‧‧‧ top surface

123‧‧‧around surface

124‧‧‧Cooling runner

125‧‧‧Connected channel

126‧‧‧Detection pipeline

13‧‧‧Detection unit

131‧‧‧ shaft

132‧‧‧ coil axis

133‧‧‧ wire

134‧‧‧Wire lap

135‧‧‧ coaxial cable

14‧‧‧Protection unit

141‧‧‧ porcelain protection tube

142‧‧‧Ceramic cover

2‧‧‧Adapter

21‧‧‧Transfer seat

211‧‧‧ bottom

212‧‧‧ top surface

213‧‧‧around surface

214‧‧‧ fitting slot

215‧‧‧ positioning slot

22‧‧‧Line lap

23‧‧‧ Positioning parts

24‧‧‧ runner unit

241‧‧‧mainstream

242‧‧‧ secondary runner

243‧‧‧Detection channel

244‧‧‧ Output channel

245‧‧‧ entrance end

246‧‧‧ imported end

25‧‧‧ Cover

3‧‧‧ eddy current detecting device

31‧‧‧Detector

311‧‧‧Detecting the ontology

312‧‧‧Wire

313‧‧‧ Cable

314‧‧‧ shaft section

315‧‧‧ coil department

32‧‧‧ cooler

33‧‧‧Protection unit

331‧‧‧Ceramic protection tube

332‧‧‧Ceramic cover

1 is an exploded perspective view showing a conventional eddy current detecting device; FIG. 2 is a cross-sectional view for assistance in explaining FIG. 1; and FIG. 3 is an exploded perspective view showing the transfer of the eddy current detecting device of the present invention. Preferred embodiment of the device; 4 is a cross-sectional view, which is an explanatory view of FIG. 3; and FIG. 5 is a cross-sectional view showing an embodiment of the preferred embodiment.

2. . . Adapter

twenty one. . . Adapter

211. . . Bottom

212. . . Top surface

213. . . Surrounding surface

214. . . Mating slot

215. . . Positioning slot

twenty two. . . Line lap

twenty three. . . Positioning member

twenty four. . . Runner unit

241. . . Mainstream road

244. . . Output channel

245. . . Entrance end

246. . . Import side

Claims (2)

An adapter for an eddy current detecting device, the eddy current detecting device includes a detector connected to the adapter, and is connected to the adapter for inputting cooling gas to cool the a detector of the detector, the detector includes a detection body connected to the adapter and having a wire wound thereon, and a cable electrically connected to the detection body, and the adapter includes: one rotation The socket has a bottom surface connected to the detecting body, a top surface opposite to the bottom surface, a surrounding surface surrounding the top surface and the periphery of the bottom surface, and a fitting groove formed on the top surface; The tray is detachably disposed in the fitting groove; the first-stage channel unit has a main passage passing through the surrounding surface of the adapter and communicating with the cooler, and a bottom surface from the adapter facing the top surface a secondary flow path extending in a direction and communicating with the main flow channel, a detection channel extending from the bottom surface of the adapter base toward the top surface direction and communicating with the fitting groove, and a surrounding surface of the adapter seat An output channel connecting the cooler and the fitting groove, wherein the mainstream prop has a formed in the a winding surface facing the inlet end of the cooler, the output passage having a inlet end spaced apart from the inlet end and facing the inlet end of the cooler, and the detecting passage is associated with the secondary flow The channel is connected to the main channel from the bottom surface to communicate with the fitting groove; and a cover is detachably mounted on the top surface of the adapter; one end of the wire wound around the detecting body is worn Provided in the detecting channel and electrically connected to the wire lap plate, and the cable penetrates into the output channel and is electrically connected to the wire lap plate to be electrically connected to the wire, and the cooling gas is passed through the mainstream The track and the secondary flow channel and the output channel and the detection channel respectively cool the detecting body and the wire and the cable. The adapter for an eddy current detecting device according to the first aspect of the invention, wherein the adapter further has a space formed on the top surface spaced apart from the fitting groove and communicating with the output channel. Positioning the slot, and the adapter further includes a positioning member detachably disposed in the positioning slot, the positioning member is a cable that can be pressed and penetrated in the output channel.