KR100606263B1 - signal switching device for rotors - Google Patents

Abstract

The present invention adopts a wiring terminal divided into arcs as a contact medium for intermittently transmitting signals between electrical / electronic components installed inside and outside the rotating body, thereby making it possible to use a limited space more efficiently. It relates to a signal transmission device of a rotating body to perform a signal transmission through a stable and efficient.

The signal transmission device of the rotating body of the present invention includes a rotating body drive motor for rotating the rotating body large; An internal wiring terminal support fastened around an axis of the rotating drive motor and supporting a plurality of wiring terminal segments formed by stacking a plurality of terminals electrically connected to the internal parts of the rotating body; External wiring terminal transfer means for contacting or separating an external wiring terminal electrically connected to an external component of the rotating body to the wiring terminal segment; Driving of the rotating body drive motor and the external wiring terminal transfer means on the basis of the angle position detection means for detecting each position in relation to the stop position of each of the wiring terminal segment and the angle position detected by the angle position detection means. It comprises a control means for controlling.

Rotating Body, Signaling, Intermittent, Split

Description

Signal switching device for rotors

1 is a perspective view schematically showing the appearance of an automatic balance centrifugal separator employing a slip ring, which is a kind of a signal transmission device of a conventional rotating body;

Figure 2 is a perspective view schematically showing the appearance of the signal transmission device of the rotating body of the present invention,

3 is an exploded perspective view of a signal transmission device of the rotating body of FIG.

4 is a cross-sectional view of a signal transmission device of a rotating body taken along line A-A in FIG. 2;

5 is an electrical block diagram of a signal transmission device of a rotating body of the present invention.

*** Explanation of symbols for the main parts of the drawing ***

3: internal wiring, 5: internal wiring terminal support,

5a: laminated circumference, 5b: internal wiring terminal segmentation,

5c: fixing pin, 7: external wiring terminal feeder,

7a: External wiring terminal support plate, 7b: External wiring terminal,

9: linear motion guide, 11: crank,

13: support plate feed motor, 15: position control disk,

15a: jaw,

17: position sensing disk, 17a: stop position slit,

17b: speed measurement slit, 19: stop position sensor,

21: speed measurement sensor, 23: jersey block,

25: feed axis, 27: linear motion guide,

29: block feed motor, 31: reference position sensor,

33: rotating body drive motor, 35: drive motor shaft,

37: drive motor top plate,

300: overall control unit, 310: key input unit,

320: position detection unit, 330: display unit,

340: position control unit, 350: terminal connection unit,

370: rotating body drive

The present invention intermittently transmits signals between electrical / electronic components installed inside and outside the rotating body, but stably transmits signals through these wiring terminals while adopting wiring terminals divided into arcs as contact media therebetween. The present invention relates to a signal transmission device of a rotating body that can be efficiently performed.

In order to exchange driving power and various signals between various electric / electronic parts mounted on the rotating body and electric / electronic parts fixed to the outside of the rotating body, a special wiring process is required. Slip rings as delivery devices have been proposed.

1 is a perspective view schematically showing the appearance of an automatic balance centrifugal separator employing a slip ring, which is a kind of a signal transmission device of a conventional rotating body. As shown in FIG. 1, the conventional automatic balance centrifuge is largely axially coupled to the centrifugal motor 120 and the centrifugal motor 120 supported by the base and equipped with the rotor levers 230 and 240. And a solenoid 140 for advancing the wiring contact plate 130 and the wiring contact plate 130 for connection with the electric / electronic circuit part inside the rotor 200. On the other hand, the rotor lever 230, 240 is caught in a bucket (not shown) containing a sample to rotate with the rotor lever 230, 240, these rotor levers 230, 240 are both ends thereof Strain gauges 236 and 246 are installed to detect an unbalance of the sample load applied to the load, and a lever for horizontally moving the respective rotor levers 230 and 240 radially in the rotor 200. A transfer motor (not shown) is mounted.

In the above-described configuration, when strain is generated at both ends of each of the rotor levers 230 and 240 due to the mounting of the sample bucket, the rotor is detected by the detection signals of the strain gauges 236 and 246 corresponding to such strains. The load of the sample applied to both ends of the levers 230 and 240 is sensed, and based on the difference, the control unit drives the lever transfer motor to horizontally move the rotor levers 230 and 240 so that the centrifugal force balance is achieved. Is achieved.

As described above, a control unit fixed to the rotor 200 outside the rotor 200 receives a detection signal from the strain gauges 236 and 246 installed on the rotor levers 230 and 240 and is installed inside the rotor 200. In order to transmit a drive control signal to the lever transfer motor, slip rings 160 extending from these electrical parts and disposed around the upper part of the rotor shaft in order to allow the electric wires inside and outside the rotor 200 to be contacted and disconnected without being twisted. ) Is being installed. The slip ring 160 is formed on the base layer of the insulating material is arranged as many as necessary up and down the metal wiring layer in a concentric circle.

On the other hand, the wiring contact plate 130 is configured to be in one-to-one contact with the wiring layer formed on the slip ring 160, it is in contact with or separated from the wiring layer by the push rod 142 mounted on the solenoid 140. The detailed structure of the above-described conventional self-balancing centrifuge is described in detail in Patent Application No. 343336 of the present applicant, and thus, further description thereof will be omitted.

However, according to the slip ring structure, which is a signal transmission device of a conventional rotating body as described above, the power or signal wiring required between the external electrical / electronic component and the internal electrical / electronic component is disposed only up and down, It takes up a lot of space, and because the solenoid hits the slip ring strongly, the slip ring is easily damaged as well as causing noise.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. The present invention provides a limited space by adopting a wiring terminal divided into arcs as a contact medium for intermittently transmitting signals between electrical / electronic components installed inside and outside the rotor. It is an object of the present invention to provide a signal transmission device for a rotating body that can be used more efficiently and to perform a signal transmission through these wiring terminals stably and efficiently.

The signal transmission device of the rotating body of the present invention for achieving the above object is a rotating body drive motor for largely rotating the rotating body; An internal wiring terminal support fastened around an axis of the rotating drive motor and supporting a plurality of wiring terminal segments formed by stacking a plurality of terminals electrically connected to the internal parts of the rotating body; External wiring terminal transfer means for contacting or separating an external wiring terminal electrically connected to an external component of the rotating body to the wiring terminal segment; Driving of the rotating body drive motor and the external wiring terminal transfer means on the basis of the angle position detection means for detecting each position in relation to the stop position of each of the wiring terminal segment and the angle position detected by the angle position detection means. It comprises a control means for controlling.                         

In the above-described configuration, the external wiring terminal transfer means includes an external wiring terminal support plate for supporting the external wiring terminal; A support plate transfer motor fixed to the outside of the rotating body; One end is axially coupled to the support plate transfer motor, the other end may include a crank coupled to the external wiring terminal support plate and a linear motion guide for guiding the retraction movement toward the internal wiring terminal support of the external wiring terminal support plate. .

The angular position detecting means is fastened around an axis of the rotating body drive motor, and a position detecting disk having a plurality of speed measuring slits indicating an angular velocity of the rotating body and a stopping position slit indicating a stop position of the internal wiring terminal supporter. ; It may include a stop position sensor for detecting the presence of the stop position slit and a speed measurement sensor for detecting the presence of the speed measurement slit.

Furthermore, it may be further provided with a forced stop means for forcibly stopping the internal wiring terminal support in a fixed position, in this case the control means is based on the angular position detected by the angular position detecting means of the forced stop means It will control the driving. And the forced stop means is a position control disk is fastened around the axis of the rotating body drive motor, the engaging jaw corresponding to the fixed position is formed on the periphery; A blocking block which penetrates the body to form a female screw and prevents rotation of the inner wire terminal supporter when the female screw is caught by the locking jaw; A block transfer motor fixed to the outside of the rotating body; A feed shaft axially coupled to the block feed motor, the outer circumferential surface of which a male screw is screwed to the female screw of the jersey block; It may include a linear motion guide for guiding the retraction movement toward the positioning disk of the jersey block and a position sensor for detecting the retreat to the reference position of the jersey block.

In addition, all the external wiring terminal transfer means may be simultaneously controlled while the external wire terminal transfer means is provided in the same number as the wire terminal division.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the signal transmission device of the rotating body according to an embodiment of the present invention.

Figure 2 is a perspective view schematically showing the appearance of the signal transmission device of the rotating body according to an embodiment of the present invention, Figure 3 is an exploded perspective view of the signal transmission device of the rotating body of Figure 2, Figure 4 is a A cross-sectional view of the signal transmission device of the rotating body cut out of the AA line shows a configuration corresponding to the rotating body for the self-balancing centrifuge composed of a three-arm rotor. As shown in Figure 2, the mechanical configuration of the signal transmission device of the rotating body according to an embodiment of the present invention is a shaft of the rotating body drive motor 33, the rotating body drive motor 33 to rotate the rotating body largely (35) Internal wiring terminal support (5) which is fastened around and supports a plurality of internal wiring terminal segments (5b) formed by stacking a plurality of terminals forming parts of a rotating body and ends of the internal wiring (3) extended. ), The external wiring terminal feed mechanism for contacting or disconnecting the external wiring terminal 7b electrically connected to the external component of the rotating body to the internal wiring terminal segment 5b and the stop position of each internal wiring terminal segment 5b. It can be made by including an angular position detector for detecting the angular position (角 位置).

In the above-described configuration, the number of internal wiring terminal supports 5 is determined in relation to the internal parts of the rotating body on the laminated circumference 5a axially coupled by the fixing pin 5c around the drive motor shaft 35 ( In this embodiment, three internal wiring terminal segments 5b are exposed and installed while maintaining their respective conformal angles, and each of the internal wiring terminal segments 5b has an arc shape connected to the internal wiring 3. Metal terminal pieces) are laminated at a predetermined interval up and down. The laminated circumference 5a may be implemented with a durable insulating material such as teflon, vinyl chloride, ceramic, or silicon.

The external wiring terminal feed mechanism includes a terminal support plate 7a for supporting the external wiring terminal 7b for power or signals extended from the control unit and the driving unit fixedly installed outside the rotating body, and the appropriate place for rotating the outside of the rotating body. The support plate transfer motor 13 fixed to the upper plate 37 of the motor 33, one end is axially coupled to the support plate transfer motor 13, the other end is coupled to the external wiring terminal support plate 7a to support plate transfer motor 13 Crank 11 and the outer wiring terminal support plate 7a for converting the rotational movement of the linear motion into a linear motion can be made to include a linear motion guide (9) for guiding the retracted linearly toward the inner wiring terminal support (5). . The external wiring terminal 7b is formed by stacking metal terminal pins having the same number of terminals as the number of terminals of the internal wiring terminal segments 5b at predetermined intervals on a support of an insulating material. When (7a) is advanced, each external wiring terminal 7b is in exact one-to-one contact with each terminal of the internal wiring terminal segment 5b.

Next, the angular position sensor sphere is fixedly coupled to the lower portion of the axis 35 of the rotating body driving motor 33, preferably the inner wiring terminal support 5, and the stop position of the inner wiring terminal support 5 around the circumference 35. A position detecting disk 17 in which a plurality of stop position slits 17a indicating a and a speed measuring slit 17b indicating an angular velocity of the rotating body are formed, a stop position sensor 19 for detecting the presence of a stop position slit, and a speed measuring slit ( It may include a speed measuring sensor 21 for detecting the presence of 17b). In such a configuration, it is preferable that both the stationary position sensor 19 and the speed measuring sensor 21 are implemented as a photo coupler in which the light receiving portion and the light emitting portion are disposed with the position sensing disk 17 therebetween. Furthermore, the number of stop position slits 17a is preferably equal to the number of internal wiring terminal segments 5b, and in this case, each stop position slit 17a is formed to maintain an equal angle to each other. The velocity measuring slit 17b may be formed as desired according to the measurement accuracy. On the other hand, in order to distinguish between the stop position slit 17a and the speed measurement slit 17b, the stop position slit 17a can be formed deep, and the speed measurement slit 17b can be formed shallow. ) Is also deeply installed to detect only the presence of the stop position slit 17a.

On the other hand, it may be further provided with a forced stop mechanism for physically forcing each of the internal wiring terminal segments 5b to always be in contact with the external wiring terminals 7b at a predetermined position without any angle distortion. The forced stop mechanism is a position control disk which is fastened to the periphery of the drive motor shaft 35, preferably the lower part of the internal wiring terminal supporter 5, and the locking jaw 15a corresponding to the predetermined position is formed on the periphery thereof. 15, a blocking block 23 that physically prevents rotation of the internal wiring terminal support 5 when a female screw (not shown) is formed through the body and is caught by the locking jaw 15a, A male screw (not shown) which is axially coupled to the block transfer motor 29 and the block transfer motor 29 fixedly installed at the upper surface of the drive motor 37 in place, and which is screwed to the female screw of the jersey block 23 on the outer circumferential surface thereof. ), The retraction to the reference position of the linear motion guide 27 and the jersey block 23 for guiding the feed shaft 25, the jersey block 23, to advance and retreat linearly toward the position control disk 15, is formed. It comprises a reference position sensor 31 for detecting Can be. In this case, when the block transfer motor 29 rotates forward / reverse, the jersey block 23 moves forward and backward on the thread of the feed shaft 25 according to the guide of the linear motion guide 27. Here, the number of the locking step 15a of the positioning disk 15 is preferably configured in the same number as the internal wiring terminal segment 5b, in this case, each of the locking step 15a to maintain the same angle to each other. Will be formed. The stop position sensor 19 may be implemented as a limit switch.

Figure 5 is an electrical block diagram of the overall operation of the signal transmission device of the rotating body of the present invention. As shown in FIG. 5, the electrical configuration of the signal transmission device of the rotating body of the present invention includes a key input unit 310 for selecting and inputting various functions included in a device equipped with the signal transmission device of the rotating body of the present invention. ); A position angle detector 320 for detecting a relative position angle of the internal wiring terminal segment 5b for transmitting a signal between the rotating body internal component and the external fixed component; A display unit 330 for displaying various current settings and operating states on a display panel; A general control unit 300 which collectively controls the overall operation of the apparatus; A position control unit 340 for driving the block transfer motor 29 to stop the internal wiring terminal segment 5b at a predetermined position by bringing the blocking block 23 into contact with the position control disk 15; An electric drive for transmitting and receiving a control command between a rotating body internal part and an external part, that is, the overall control unit 300 by driving the support plate transfer motor 13 to connect the external wiring terminal support plate 7 to the internal wiring terminal support 5. It may include a rotor connecting portion 370 for rotating the rotating body (not shown) by driving the terminal connecting portion 350 for installing the system and the rotating body driving motor 33.

In the above configuration, the block transfer motor 29 is preferably implemented as a stepping motor capable of precise control of the rotation angle, but may also be implemented as a servo motor. Similarly, the support plate feed motor 13 may also be implemented as a servo motor or step motor that can control the rotational movement within the limited rotation angle range.

The rotor drive motor 35 may be one of an AC or DC motor having a speed control function or a servo motor capable of speed and position adjustment. In particular, when the servo motor is adopted as the rotor drive motor 35. Since the servo motor may perform the role of the position controller 340 itself, the position controller 340 may be omitted.

Hereinafter, the operation procedure of the signal transmission device of the rotating body of the present invention will be described in detail.

First, when a user selects and inputs various functions provided in the device through the key input unit 310, the overall control unit 300 receives the command and then issues a command to the rotating body driving unit 370 to rotate the driving motor 33. By rotating the three arm rotary body (not shown) fastened to the drive motor shaft 35 at a set speed, thereby rotating the internal wiring terminal support (5). In this state, the overall control unit 300 analyzes the detection signal of the stop position sensor 19 according to the uneven information of the position detection disk 17 of the position angle detecting unit 320 to determine the position control unit at the first correct position. Command 340. Next, the position control unit 340 received the command from the general control unit 300 drives the block transfer motor 29 to advance the jersey block 23 to a predetermined distance, whereby the jersey block 23 drives the drive motor. Along with the shaft 35 is caught by the locking projection 15a of the rotating position control disk 15, as a result the rotation of the drive motor shaft 35 is momentarily blocked.

After a while, the overall control unit 300 issues a command to the terminal connecting unit 350 to drive the support plate transfer motor 13 to connect the external wiring terminal 7b with the first internal wiring terminal segment 5b one-to-one at the same time. Subsequently, the overall control unit 300 transmits a command or electric power necessary for the internal parts of the rotating body through the hypothesized electric system or receives a detection signal from the internal parts of the rotating body. Subsequently, the overall control unit 300 issues a command to the terminal connection unit 350 to drive the support plate transfer motor 13 to separate the external wiring terminal 7b from the internal wiring terminal segment 5b and at the same time the position control unit 340. In addition, the block transfer motor 29 is driven and the jersey block 23 is separated from the position control disk 15 to be retracted to the reference position determined by the reference position sensor 31. As described above, when the driving / control operation of the internal parts of the rotor through the first internal terminal segment 5b is completed, the internal parts of the rotor and the internal parts of the rotor through the second and third internal terminal segments 5b are similarly applied. After installing the electric system between the overall control unit 300, the driving / control work for the internal parts of the rotating body.

As described above, when the driving / control work for all the internal parts of the rotating body is completed, the overall control unit 300 issues a command to the rotating body driving unit 370 to drive the rotating body driving motor 35. For example, centrifugation. Meanwhile, the display unit 330 displays various current settings and operating states on the display panel while the work process is in progress.

The signal transmission apparatus of the rotating body of the present invention is not limited to the above-described embodiments, and can be modified in various ways within the scope of the technical idea of the present invention.

For example, the number of the internal wiring terminal segments 5b may be configured as two or four or more. In this case, the shapes of the position control disk 15 and the position sensing disk 17 are also correlated with each other. It will have to be changed reasonably. Furthermore, by constructing the external wiring terminal transfer mechanism in the same number as the internal wiring terminal segment 5b, the hypothesis of the electrical system for all internal wiring terminal segments 5b can be performed at the same time. May also be performed at the same time.

As described above, according to the signal transmission device of the rotating body of the present invention, by adopting a wiring terminal divided into an arc as a contact medium for intermittently transmitting signals between electrical and electronic components installed respectively inside and outside the rotating body. Limited space can be used more efficiently. Furthermore, the noise generated during the installation of the electric system can be greatly reduced, and the life of the internal wiring terminal support and the external wiring terminal can be extended through the flexible construction of the electric system.

In particular, it is applied to the self-balancing centrifugal separator to effectively cope with various complicated structures or deformations of the internal parts of the rotor, ie the rotor arm.

Claims (6)

A rotating body driving motor for rotating the rotating body; An internal wiring terminal support fastened around an axis of the rotating drive motor and supporting a plurality of wiring terminal segments formed by stacking a plurality of terminals electrically connected to the internal parts of the rotating body; External wiring terminal transfer means for contacting or separating an external wiring terminal electrically connected to an external component of the rotating body to the wiring terminal segment; Angular position sensing means for sensing angular position with respect to the stop position of each wire terminal segment; And a control means for controlling driving of the rotating body driving motor and the external wiring terminal transfer means based on the angular position detected by the angular position detecting means. According to claim 1, wherein the external wiring terminal transfer means, An external wiring terminal support plate supporting the external wiring terminal; A support plate transfer motor fixed to the outside of the rotating body; One end is coupled to the support plate transfer motor, the other end is crank coupled to the external wiring terminal support plate and And a linear motion guide for guiding the forward and backward movement of the external wiring terminal support plate toward the internal wiring terminal support. The method of claim 1, wherein the angular position detecting means, A position sensing disk fastened around an axis of the rotating body drive motor, and having a plurality of stop position slits indicating a stop position of the internal wiring terminal support and a plurality of speed measuring slits indicating an angular velocity of the rotating body; A stop position sensor for detecting the presence of the stop position slit; And a speed measurement sensor for detecting the presence of the speed measurement slit. The method of claim 1, further comprising a forced stop means for forcibly stopping the internal wiring terminal support at a fixed position, And the control means controls the driving of the forced stop means based on the angular position detected by the angular position detecting means. The method of claim 4, wherein the forced stop means, A position control disk fastened around an axis of the rotating body drive motor, and a locking jaw corresponding to the exact position formed around the shaft; A blocking block which penetrates the body to form a female screw and prevents rotation of the inner wire terminal supporter when the female screw is caught by the locking jaw; A block transfer motor fixed to the outside of the rotating body; A feed shaft axially coupled to the block feed motor, the outer circumferential surface of which a male screw is screwed to the female screw of the jersey block; A linear motion guide for guiding the retraction motion toward the positioning disk of the blocking block; It comprises a position sensor for detecting the retraction to the reference position of the jersey block, And the control means stops the driving of the block transfer motor when the retraction detection signal is transmitted from the position sensor. According to any one of claims 1 to 5, The external wiring terminal transfer means is provided in the same number as the wiring terminal split, The control means is a signal transmission device of the rotating body, characterized in that for controlling all the external wiring terminal transfer means at the same time.

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