CN103393436B - The fan-shaped pendulous device of machinery - Google Patents
The fan-shaped pendulous device of machinery Download PDFInfo
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- CN103393436B CN103393436B CN201310332024.2A CN201310332024A CN103393436B CN 103393436 B CN103393436 B CN 103393436B CN 201310332024 A CN201310332024 A CN 201310332024A CN 103393436 B CN103393436 B CN 103393436B
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Abstract
A kind of mechanical fan-shaped pendulous device, comprises Power Component, wobble component, rotating shaft adapter assembly and Hall angle sensor cluster; The coil that Power Component comprises U-shaped soft silicon steel body and is wound in respectively on two support arms of U-shaped soft silicon steel body; The swing permanent magnet that wobble component comprises swing arm and is connected with swing arm one end, the opening relative spacing swinging permanent magnet and U-shaped soft silicon steel body is arranged; Rotating shaft adapter assembly comprises rotating shaft and the shaft seat for fixed rotating shaft, and swing arm is connected with rotating shaft is vertical away from the one end swinging permanent magnet, and rotating shaft is provided with the interface relative with swing arm; Hall angle sensor cluster comprises Hall permanent magnet, Hall chip and circuit board, Hall permanent magnet is connected with one end of rotating shaft, Hall chip is integrated on circuit board, and circuit board is fixed on shaft seat, and Hall chip and Hall permanent magnet relative spacing are arranged.It is longer and have the feature compared with high measurement accuracy to angle that the fan-shaped pendulous device of above-mentioned machinery has service life.
Description
Technical field
The present invention relates to ultrasonic imaging technique field, particularly relate to a kind of mechanical fan-shaped pendulous device.
Background technology
The kind of ultrasonic imaging device is more, as A type, M type, B-mode ultrasonography instrument and color doppler flow imaging instrument.Wherein, Type B utilizes A type and the technical development of M type, and it changes the display of the amplitude modulation(PAM) of A type into briliancy modulation display, and brightness changes along with echo signal size, reflection tissue two dimensional slice faultage image.The real-time tangent plane picture of Type B, verity is strong, and intuitive is good, easily grasps.Nearly more than ten years ultrasonic imaging technique development is very rapid, and instrument is constantly updated and regenerated, and have the novel B type ultrasonic imaging device of improvement to occur every year, B-mode ultrasonography instrument has become the most most important equipment of ultrasonic diagnosis.Type B surpasses imaging can meet normal diagnostic demand, cheap, and without ionizing radiation, therefore market prospect is boundless.
Low frequency (2 ~ 15MHz) ultrasonic imaging device adopts array transducer to carry out imaging usually, does not in most cases need mechanical scanner.High frequency (20 ~ 80MHz) ultrasonic imaging device can provide high imaging resolution, uses comparatively extensive at present in ophthalmology, department of dermatologry etc. check.Because array high frequency ultrasound imaging system price is very expensive, so the high frequency ultrasound imager of mechanical scanning type is still the main flow equipment on market.
Mechanical scanner needs power source, and is generally Miniature retractable electric magnet or direct current generator for the power source in the fan-shaped pendulous device of machinery.Need design linkage using Miniature retractable electric magnet as the scheme of power source, thus the fan motion of the linear telescopic of telescoping electromagnetic ferrum being converted to probe swings.Because this linkage is mechanical connection from power source to the connection popping one's head in, because slew rate is higher, commutation frequent, connector is meticulousr, therefore impact is larger and easy to wear, so the life-span is restricted.Be that the scheme of power source generally needs use a pair bevel gear to commutate with direct current generator, under this condition higher to angle resolution requirement, the backlass that gear wheel reversing produces can produce certain impact to certainty of measurement.
Summary of the invention
Based on this, be necessary that providing a kind of has compared with the long life and have compared with the fan-shaped pendulous device of the machinery of high measurement accuracy angle.
A kind of mechanical fan-shaped pendulous device, comprises Power Component, wobble component, rotating shaft adapter assembly and Hall angle sensor cluster;
Described Power Component comprises U-shaped soft silicon steel body and is wound in the coil on two support arms of described U-shaped soft silicon steel body respectively, and described Power Component swings for controlling described wobble component;
The swing permanent magnet that described wobble component comprises swing arm and is connected with described swing arm one end, the opening relative spacing of described swing permanent magnet and described U-shaped soft silicon steel body is arranged;
Described rotating shaft adapter assembly comprises rotating shaft and the shaft seat for fixing described rotating shaft, described swing arm is connected with described rotating shaft is vertical away from one end of described swing permanent magnet, and described rotating shaft is provided with described swing arm away from the relative interface in one end of described swing permanent magnet;
Described Hall angle sensor cluster comprises Hall permanent magnet, Hall chip and circuit board, described Hall permanent magnet is connected with one end of described rotating shaft, described Hall chip is integrated on described circuit board, described circuit board is fixed on described shaft seat, and described Hall chip and described Hall permanent magnet relative spacing are arranged.
Wherein in an embodiment, the middle part of described rotating shaft is provided with sleeve pipe integrated with described rotating shaft, described sleeve pipe offers the first tapped through hole running through described sleeve pipe and described rotating shaft, described swing arm has external screw thread away from one end of described swing permanent magnet, described swing arm is placed in one end of described first tapped through hole away from one end of described swing permanent magnet, and the other end of described first tapped through hole is described interface.
Wherein in an embodiment, described shaft seat comprises one end and has the tube structure of bottom surface and the clutch shaft bearing plate be relatively located on described bottom surface and the second shaft bearing plate, described bottom surface offers the through hole for making described swing arm pass, described clutch shaft bearing plate and the second shaft bearing plate offer respectively and first for what install described rotating shaft through hole and second is installed through hole is installed, described rotating shaft is placed in described second installation through hole away from one end of described Hall permanent magnet, described rotating shaft protrudes from the side of described clutch shaft bearing plate away from described second shaft bearing plate near one end of described Hall permanent magnet.
Wherein in an embodiment, described second shaft bearing plate comprises the first half through-hole section and the second half through-hole section, and described the first half through-hole section are docked with described the second half through-hole section and formed described second and install through hole; The end face of described the first half through-hole section and described the second half through hole joints is provided with the second tapped through hole, described the second half through holes are provided with the screwed hole corresponding with described second tapped through hole with the end face of described the first half through-hole section joints, and described the first half through-hole section are fixedly connected with by screw or bolt with described the second half through-hole section.
Wherein in an embodiment, described clutch shaft bearing plate is provided with multiple 3rd tapped through hole, described circuit board is provided with the 4th tapped through hole corresponding to multiple and described first tapped through hole, and described circuit board is fixed on described clutch shaft bearing plate by screw or bolt.
Wherein in an embodiment, described rotating shaft adapter assembly also comprises two rolling bearings be installed on respectively in described first installation through hole and the second installation through hole, and described rotating shaft and two described rolling bearings are coaxially arranged.
Wherein in an embodiment, the fan-shaped pendulous device of described machinery also comprises casing assembly, and described casing assembly comprises first set barrel structure and the second tube-in-tube structure; One end that described first set barrel structure and described tube structure have bottom surface removably connects, for accommodating described rotating shaft adapter assembly, described Hall angle sensor cluster, described clutch shaft bearing plate, described second shaft bearing plate and the described swing arm of part; Described second tube-in-tube structure and described tube structure removably connect away from one end of described bottom surface, described second tube-in-tube structure and described tube structure form the cavity being used for accommodating described Power Component, described swing permanent magnet and the described swing arm of part, and described Power Component is fixed in described second tube-in-tube structure.
Wherein in an embodiment, described first set barrel structure is frustum cone structure away from one end of described tube structure, and described second tube-in-tube structure is provided with away from one end of described tube structure the rear end cap removably connected with described second tube-in-tube structure.
Wherein in an embodiment, described first set barrel structure is provided with female thread in one end of described tube structure, one end that described tube structure has bottom surface is provided with external screw thread, and one end that described first set barrel structure and described tube structure have bottom surface is removably connected by the mode of threaded engagement;
Described second tube-in-tube structure is provided with external screw thread near one end of described tube structure, described tube structure is provided with female thread in the one end away from described bottom surface, and described second tube-in-tube structure and described tube structure are removably connected by the mode of threaded engagement away from one end of described bottom surface;
Described second tube-in-tube structure is provided with external screw thread away from one end of described tube structure, is provided with female thread in described rear end cap, and described second tube-in-tube structure and described rear end cap are removably connected by the mode of threaded engagement.
Wherein in an embodiment, the multi-tap that the fan-shaped pendulous device of described machinery also comprises patchplug and is connected with described patchplug, described patchplug is connected with described interface away from one end of described multi-tap, and described multi-tap is popped one's head in for connecting ultrasonic transduction away from one end of described patchplug.
During the work of above-mentioned machinery fan-shaped pendulous device, the coil on two support arms of U-shaped soft silicon steel body have electric current by time, U-shaped soft silicon steel body is magnetized, the polarity of its two support arm is contrary, one support arm attracts to swing permanent magnet, and a support arm repels swing permanent magnet, causes swinging permanent magnet and swings towards a direction; And when the current direction changes, swinging permanent magnet swings towards other direction, and then make and swing the swing arm that permanent magnet is connected and swing in fan-shaped range.And swing arm is connected with rotating shaft, thus swing arm can drive rotating shaft to rotate along its axis while swing, and then makes the Hall permanent magnet rotating that is connected with the end face of one end of rotating shaft.Can cause the changes of magnetic field be distributed in around Hall chip during Hall permanent magnet rotating, Hall chip provides the angle information that swing arm swings.
When being connected with ultrasound transducer probe on interface relative with swing arm in rotating shaft, ultrasound transducer probe is connected with swing arm by rotating shaft, thus makes swing arm can drive ultrasound transducer probe synchronous hunting.In the process of ultrasonic scanning, the angle information (positional information of ultrasound transducer probe) that the swing arm detected according to Hall angle sensor cluster swings triggers single sweep operation process.By image algorithm, obtain the two-dimensional ultrasound faultage image (fan sweeping faultage image) of the vertical covering of the fan that a width is determined by ultrasound transducer probe swaying direction.
The fan-shaped pendulous device of above-mentioned machinery can realize the fan-shaped swing of high speed by changing the sense of current fast.And the fan-shaped pendulous device of above-mentioned machinery adopts contactless Electromagnetic Drive method as power source to realize the fan-shaped swing of high speed machine, there is no complicated mechanical connection, without the need to the commutation parts of precision, effectively reduce the mechanical wear between device and power consumption, thus make the fan-shaped pendulous device of above-mentioned machinery have long service life, the feature such as low in energy consumption.And the Hall angle sensor cluster in the fan-shaped pendulous device of above-mentioned machinery adopts contactless connected mode and contactless metering system, thus make above-mentioned Hall angle sensor cluster have longer service life and to angle, there is the comparatively feature such as high measurement accuracy.And during the work of above-mentioned machinery fan-shaped pendulous device, the rotation of the use countershaft of Hall angle sensor cluster does not form externality.In addition, Hall angle sensor cluster size is less, effectively reduces the space needed for installation, and be conducive to the overall dimensions reducing device, the miniaturization for this device opens new approach.
Accompanying drawing explanation
Fig. 1 is the structural representation of the fan-shaped pendulous device of machinery of an embodiment;
Fig. 2 is the explosive view of the fan-shaped pendulous device of machinery of an embodiment in Fig. 1;
Fig. 3 is the structural representation of the bearing block in Fig. 1;
Fig. 4 is the structural representation of the rotating shaft in Fig. 1;
Fig. 5 is the structural representation of Hall chip in Fig. 1 and circuit board;
Fig. 6 is the graph of a relation of Hall angle sensor cluster output voltage in Fig. 1 and pendulum angle;
Fig. 7 is the structural representation that the fan-shaped pendulous device of machinery in Fig. 1 comprises casing assembly;
Fig. 8 is the explosive view of Fig. 7.
Detailed description of the invention
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Preferred embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present invention more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figures 1 and 2, the fan-shaped pendulous device 10 of the machinery of an embodiment comprises Power Component 100, wobble component 200, rotating shaft adapter assembly 300 and Hall angle sensor cluster 400.The fan-shaped pendulous device 10 of machinery can be used for connecting ultrasound transducer probe 20, for use in ultrasonic image-forming system.
The coil 120 that Power Component 100 comprises U-shaped soft silicon steel body 110 and is wound in respectively on the two relative support arms of U-shaped soft silicon steel body 110.Wherein, U-shaped soft silicon steel body 110 has the performance of quick demagnetization.
The swing permanent magnet 220 that wobble component 200 comprises swing arm 210 and is connected with swing arm 210 one end.Swing permanent magnet 220 to arrange with the opening relative spacing of U-shaped soft silicon steel body 110.In the present embodiment, swing arm 210 and the one end swinging permanent magnet 220 close are provided with external screw thread, and the middle part swinging permanent magnet 220 is provided with tapped through hole, and swing arm 210 is removably connected by the mode of threaded engagement with swing permanent magnet 220.Plane and the spacing distance swung between permanent magnet 220 at the end face place of two support arms of U-shaped soft silicon steel body 110 are 0.5 ~ 1.0 millimeter.Be appreciated that in other embodiments, also can increase swing arm 210 and the end face swinging one end that permanent magnet 220 is connected, adopt glue bond and coordinate the mode of rivet to be connected on swing arm 210 by swing permanent magnet 220.
Power Component 100 coordinates with wobble component 200 for the fan-shaped pendulous device of machinery 10 provides original driving force.Coil 120 on two support arms of U-shaped soft silicon steel body 110 have electric current by time, U-shaped soft silicon steel body 110 is magnetized, and polarity contrary in its two arm straps, is respectively N pole and S pole.One support arm attracts to swing permanent magnet 220, support arm and repels swing permanent magnet 220, causes swinging permanent magnet 220 and swings towards a direction; And when the current direction changes, swinging permanent magnet 220 towards other direction swings, and then make and swing the swing arm 210 that permanent magnet 220 is connected and swing in fan-shaped range.
Rotating shaft adapter assembly 300 comprises shaft seat 310 and rotating shaft 320, and axle bed 310 is for installing fixed rotating shaft 320.Swing arm 210 is connected with rotating shaft 320 is vertical away from the one end swinging permanent magnet 220.Rotating shaft 320 is provided with swing arm 210 away from the relative interface 322 in the one end swinging permanent magnet 220, and also namely interface 322 is located on the axial direction of swing arm 210.
As Figure 1-3, in the present embodiment, shaft seat 310 comprises tube structure 312, clutch shaft bearing plate 314 and the second shaft bearing plate 316.One end of tube structure 312 is provided with bottom surface 311, bottom surface 311 offers the through hole 313 for making swing arm 210 pass.Clutch shaft bearing plate 314 and the second shaft bearing plate 316 are located on bottom surface 311 relatively.Clutch shaft bearing plate 314 and the second shaft bearing plate 316 offer respectively and first for what install rotating shaft 320 through hole 315 and second is installed through hole 317 is installed.When installing rotating shaft 320, rotating shaft 320 one end is placed in the second installation through hole 317, and rotating shaft 320 other end protrudes from the side of clutch shaft bearing plate 314 away from the second shaft bearing plate 316.Be appreciated that shaft seat 310 is not limited to said structure.
As shown in Figures 2 and 4, in the present embodiment, the middle part of rotating shaft 320 is provided with the one-body molded sleeve pipe 324 with rotating shaft 320, sleeve pipe 324 offers the first tapped through hole (figure does not mark) running through sleeve pipe 324 and rotating shaft 320.Swing arm 210 has external screw thread away from swinging one end of permanent magnet 220, and swing arm 210 is removably connected by the mode of threaded engagement and rotating shaft 320 away from the one end swinging permanent magnet 220.Wherein, swing arm 210 is placed in one end of the first tapped through hole away from the one end swinging permanent magnet 220, and the other end of the first tapped through hole is interface 322.
Further, in order to reduce the friction torque of rotating shaft 320 when rotating, in the present embodiment, rotating shaft adapter assembly 300 also comprises two rolling bearings 330 be installed on respectively in the first installation through hole 315 and the second installation through hole 317.Rotating shaft 320 and two rolling bearings 330 are coaxially arranged.
As Figure 1-3, further, for the ease of the installation and removal of rotating shaft 320, in the present embodiment, the second shaft bearing plate 316 comprises the first half through-hole section 3162 and the second half through-hole section 3164.The first half through-hole section 3162 are docked formation second with the second half through-hole section 3164 and are installed through hole 317.The end face of the first half through-hole section 3162 and the second half through-hole section 3164 joints is provided with the second tapped through hole 3166, and the second half through-hole section 3164 are provided with the screwed hole corresponding with the second tapped through hole 3166 with the end face of the first half through-hole section 3162 joints.The first half through-hole section 3162 are fixedly connected with by screw 318 with the second half through-hole section 3164.Be appreciated that bolt can replace screw.
As shown in Figure 1, Figure 2 and shown in Fig. 5, Hall angle sensor cluster 400 comprises Hall permanent magnet 410, Hall chip 420 and circuit board 430.
Hall permanent magnet 410 is connected to rotating shaft 320 and protrudes from one end of clutch shaft bearing plate 314 side.In the present embodiment, Hall permanent magnet 410 is cylindrical, and Hall permanent magnet 410 is connected with rotating shaft 320 by sleeve 440.Be appreciated that Hall permanent magnet 410 is not limited to aforesaid way with the connected mode of rotating shaft 320.
Hall chip 420 is integrated on circuit board 430.Hall chip 420 and Hall permanent magnet 410 relative spacing are arranged, and namely Hall chip 420 does not contact with Hall permanent magnet 410.In the present embodiment, Hall chip 420 is square, Hall permanent magnet 410 is cylindrical, the central axis of Hall chip 420 and the central axis of Hall permanent magnet 410 straight line altogether, and the spacing distance between Hall chip 420 and Hall permanent magnet 410 is 0.5 ~ 1.0 millimeter.
As shown in Figures 1 and 3, Hall chip 420 is fixed on shaft seat 310 by circuit board 430.In the present embodiment, clutch shaft bearing plate 314 is provided with multiple 3rd tapped through hole 319, circuit board 430 is provided with multiple four tapped through hole 432 corresponding with the 3rd tapped through hole 319, and circuit board 430 is fixed on by screw 318 on the clutch shaft bearing plate 314 in shaft seat 310.Be appreciated that bolt can replace screw.
Swing arm 210 is connected with rotating shaft 320, thus swing arm 210 can drive rotating shaft 320 to rotate along its axis while swing, and then the Hall permanent magnet 410 be connected on rotating shaft 320 one end is rotated.Can cause the changes of magnetic field be distributed in around Hall chip 420 when Hall permanent magnet 410 rotates, Hall chip 420 provides the angle information that swing arm 210 swings, and is spread out of by circuit board 430.
When rotating shaft 320 is directly or indirectly connected with ultrasound transducer probe 20 by the interface 322 on it, ultrasound transducer probe 20 is connected with swing arm 210 by rotating shaft 320, thus makes swing arm 210 can drive ultrasound transducer probe 20 synchronous hunting.In the process of ultrasonic scanning, according to Hall angle sensor cluster detect 400 to swing arm 210 swing angle information (positional information of ultrasound transducer probe 20) trigger single sweep operation process.By image algorithm, obtain the two-dimensional ultrasound faultage image (fan sweeping faultage image) of the vertical covering of the fan that a width is determined by ultrasound transducer probe 20 swaying direction.
As shown in Figure 6, Fig. 6 is the graph of a relation of Hall angle sensor cluster 400 output voltage in present embodiment and pendulum angle.Curve 1 represents with reference to high level; Curve 2 represents the output voltage waveforms of corresponding angle; Curve 3 represents the marker for determination waveform of 0 ~ 180 degree and 180 ~ 360 degree, and wherein, 0 ~ 180 degree represents low level, and 180 ~ 360 degree represent high level.
As shown in Figures 1 and 2, in the present embodiment, mechanical fan-shaped pendulous device 10 multi-tap 600 that also comprises patchplug 500 and removably connect with patchplug 500.Patchplug 500 is connected with interface 322 away from one end of multi-tap 600, and multi-tap 600 pops one's head in 20 away from one end of patchplug 500 for connecting ultrasonic transduction.Patchplug 500 is abutted away from the one end swinging permanent magnet 220 with swing arm 210 by interface 322 away from one end of multi-tap 600.
Further, be provided with female thread in one end that patchplug 500 is connected with multi-tap 600, one end that multi-tap 600 is connected with patchplug 500 is provided with external screw thread, and patchplug 500 and multi-tap 600 are removably connected by the mode of threaded engagement.Patchplug 500 is provided with external screw thread away from one end of multi-tap 600, and patchplug 500 is removably connected by the mode of threaded engagement away from one end of multi-tap 600 and interface 322.Multi-tap 600 is provided with female thread in the one end away from patchplug 500, and multi-tap 600 is provided with externally threaded ultrasonic transduction by the mode of threaded engagement and one end and pops one's head in and 20 to removably connect.
Because rotating shaft 320 is provided with the interface 322 relative with swing arm 210, thus can various switching device be passed through, if patchplug 500 is away from multi-tap 600, the ultrasonic transduction of plurality of specifications probe 20 is installed in mechanical fan-shaped pendulous device 10 indirectly.Be appreciated that interface 322 is not limited to connect ultrasonic transduction probe 20.
As shown in Figures 7 and 8, in the present embodiment, mechanical fan-shaped pendulous device 10 also comprises casing assembly 700.Casing assembly 700 comprises first set barrel structure 710 and the second tube-in-tube structure 720.
One end that first set barrel structure 710 and tube structure 312 have bottom surface 311 removably connects, for accommodating rotating shaft adapter assembly 300, Hall angle sensor cluster 400, clutch shaft bearing plate 314, second shaft bearing plate 316 and part swing arm 210.Second tube-in-tube structure 720 removably connects with tube structure 312 one end away from bottom surface 311, and the second tube-in-tube structure 720 forms with tube structure 312 cavity being used for accommodating Power Component 100, swinging permanent magnet 220 and part swing arm 210.
Further; first set barrel structure 710 is frustum cone structure away from one end of tube structure 312; second tube-in-tube structure 720 is provided with away from one end of tube structure 312 rear end cap 730 removably connected with the second tube-in-tube structure 720; thus fan-shaped for above-mentioned machinery pendulous device 10 is sealed; both protected mechanical fan-shaped pendulous device 10 preferably, handled easily uses again.When the fan-shaped pendulous device 10 of above-mentioned machinery is provided with ultrasonic transduction pop one's head in 20 time, ultrasonic transduction probe 20 is positioned at the small end face place of frustum cone structure away from the end face of one end of interface 322, and swings in fan-shaped range.
Further, first set barrel structure 710 is provided with female thread in one end of tube structure 312, one end that tube structure 312 has bottom surface 311 is provided with external screw thread, and one end that first set barrel structure 710 and tube structure 312 have bottom surface 311 is removably connected by the mode of threaded engagement.Second tube-in-tube structure 720 is provided with external screw thread near one end of tube structure 312, tube structure 312 is provided with female thread in the one end away from bottom surface 311, and the second tube-in-tube structure 720 is removably connected by the mode of threaded engagement with tube structure 312 one end away from bottom surface 311.Second tube-in-tube structure 720 is provided with external screw thread away from one end of tube structure 312, is provided with female thread in rear end cap 730, and the second tube-in-tube structure 720 is removably connected by the mode of threaded engagement with rear end cap 730.
Power Component 100 is fixed in the second tube-in-tube structure 720.In the present embodiment, the inwall of the second tube-in-tube structure 720 is provided with two beams that are relatively fixed, the width of the U-shaped soft silicon steel body 110 in the spacing distance between two built-in beams and Power Component 100 matches, U-shaped soft silicon steel body 110 is arranged in two and is relatively fixed between beam, thus is fixed in the second tube-in-tube structure 720 by Power Component 100.
Owing to needing power supply when the fan-shaped pendulous device 10 of above-mentioned machinery works, therefore, in the present embodiment, the fan-shaped pendulous device 10 of above-mentioned machinery also comprises circuit control module (not shown).Circuit control module comprises processor, signal amplification circuit and analog-digital converter.
During circuit control module work, processor produces the controlled sinusoidal small-signal of a frequency, sinusoidal small-signal transfers in signal amplification circuit, an adjustable voltage power supply is formed after being exaggerated filtering voltage regulation, alternating current can be provided for the coil 120 in wobble component 200, and then swing arm 210 is swung.Hall angle sensor cluster 400 detects and records the angle information of swing arm 210 swing.The angle information that swing arm 210 swings is transmitted back in processor after analog-digital converter conversion, and processor triggers single sweep operation according to the information passed back.Being appreciated that in other embodiments, can be that the fan-shaped pendulous device 10 of above-mentioned machinery is powered by other external power supply units.
The fan-shaped pendulous device of above-mentioned machinery 10 can realize the fan-shaped swing of high speed by changing the sense of current fast.And the fan-shaped pendulous device of above-mentioned machinery 10 adopts contactless Electromagnetic Drive method as power source to realize the fan-shaped swing of high speed machine, there is no complicated mechanical connection, without the need to the commutation parts of precision, effectively reduce the mechanical wear between device and power consumption, thus make the fan-shaped pendulous device of above-mentioned machinery 10 have long service life, the feature such as low in energy consumption.And the Hall angle sensor cluster 400 in the fan-shaped pendulous device of above-mentioned machinery 10 adopts contactless connected mode and contactless metering system, thus make above-mentioned Hall angle sensor cluster 400 have longer service life and to angle, there is the comparatively feature such as high measurement accuracy.And above-mentioned machinery fan-shaped pendulous device 10 is when working, the rotation of the use countershaft 320 of Hall angle sensor cluster 400 does not form externality.In addition, Hall angle sensor cluster 400 size is less, effectively reduces the space needed for installation, and be conducive to the overall dimensions reducing device, the miniaturization for this device opens new approach.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (9)
1. the mechanical fan-shaped pendulous device of ultrasonic image-forming system, is characterized in that, comprises Power Component, wobble component, rotating shaft adapter assembly and Hall angle sensor cluster;
Described Power Component comprises U-shaped soft silicon steel body and is wound in the coil on two support arms of described U-shaped soft silicon steel body respectively, and described Power Component swings for controlling described wobble component;
The swing permanent magnet that described wobble component comprises swing arm and is connected with described swing arm one end, the opening relative spacing of described swing permanent magnet and described U-shaped soft silicon steel body is arranged;
Described rotating shaft adapter assembly comprises rotating shaft and the shaft seat for fixing described rotating shaft, described swing arm is connected with described rotating shaft is vertical away from one end of described swing permanent magnet, and described rotating shaft is provided with described swing arm away from the relative interface in one end of described swing permanent magnet;
Described Hall angle sensor cluster comprises Hall permanent magnet, Hall chip and circuit board, described Hall permanent magnet is connected with one end of described rotating shaft, described Hall chip is integrated on described circuit board, described circuit board is fixed on described shaft seat, and described Hall chip and described Hall permanent magnet relative spacing are arranged;
Wherein, the multi-tap that the fan-shaped pendulous device of described machinery also comprises patchplug and is connected with described patchplug, described patchplug is connected with described interface away from one end of described multi-tap, and described multi-tap is popped one's head in for connecting ultrasonic transduction away from one end of described patchplug;
When coil on two support arms of described U-shaped soft silicon steel body has electric current to pass through, described U-shaped soft silicon steel body is magnetized, polarity contrary in its two arm straps, be respectively N pole and S pole, one support arm attracts described swing permanent magnet, one support arm repels described swing permanent magnet, causes described swing permanent magnet to swing towards a direction; And when the current direction changes, described swing permanent magnet swings towards other direction, and then the described swing arm be connected with described swing permanent magnet is swung in fan-shaped range.
2. the mechanical fan-shaped pendulous device of ultrasonic image-forming system according to claim 1, it is characterized in that, the middle part of described rotating shaft is provided with sleeve pipe integrated with described rotating shaft, described sleeve pipe offers the first tapped through hole running through described sleeve pipe and described rotating shaft, described swing arm has external screw thread away from one end of described swing permanent magnet, described swing arm is placed in one end of described first tapped through hole away from one end of described swing permanent magnet, and the other end of described first tapped through hole is described interface.
3. the mechanical fan-shaped pendulous device of ultrasonic image-forming system according to claim 1, it is characterized in that, described shaft seat comprises one end and has the tube structure of bottom surface and the clutch shaft bearing plate be relatively located on described bottom surface and the second shaft bearing plate, described bottom surface offers the through hole for making described swing arm pass, described clutch shaft bearing plate and the second shaft bearing plate offer respectively and first for what install described rotating shaft through hole and second is installed through hole is installed, described rotating shaft is placed in described second installation through hole away from one end of described Hall permanent magnet, described rotating shaft protrudes from the side of described clutch shaft bearing plate away from described second shaft bearing plate near one end of described Hall permanent magnet.
4. the mechanical fan-shaped pendulous device of ultrasonic image-forming system according to claim 3, it is characterized in that, described second shaft bearing plate comprises the first half through-hole section and the second half through-hole section, and described the first half through-hole section are docked with described the second half through-hole section and formed described second and install through hole; The end face of described the first half through-hole section and described the second half through hole joints is provided with the second tapped through hole, described the second half through holes are provided with the screwed hole corresponding with described second tapped through hole with the end face of described the first half through-hole section joints, and described the first half through-hole section are fixedly connected with by screw or bolt with described the second half through-hole section.
5. the mechanical fan-shaped pendulous device of ultrasonic image-forming system according to claim 3, it is characterized in that, described clutch shaft bearing plate is provided with multiple 3rd tapped through hole, described circuit board is provided with the 4th tapped through hole corresponding to multiple and described 3rd tapped through hole, and described circuit board is fixed on described clutch shaft bearing plate by screw or bolt.
6. the mechanical fan-shaped pendulous device of ultrasonic image-forming system according to claim 3, it is characterized in that, described rotating shaft adapter assembly also comprises two rolling bearings be installed on respectively in described first installation through hole and the second installation through hole, and described rotating shaft and two described rolling bearings are coaxially arranged.
7. the mechanical fan-shaped pendulous device of ultrasonic image-forming system according to claim 3, is characterized in that, the fan-shaped pendulous device of described machinery also comprises casing assembly, and described casing assembly comprises first set barrel structure and the second tube-in-tube structure; One end that described first set barrel structure and described tube structure have bottom surface removably connects, for accommodating described rotating shaft adapter assembly, described Hall angle sensor cluster, described clutch shaft bearing plate, described second shaft bearing plate and the described swing arm of part; Described second tube-in-tube structure and described tube structure removably connect away from one end of described bottom surface, described second tube-in-tube structure and described tube structure form the cavity being used for accommodating described Power Component, described swing permanent magnet and the described swing arm of part, and described Power Component is fixed in described second tube-in-tube structure.
8. the mechanical fan-shaped pendulous device of ultrasonic image-forming system according to claim 7, it is characterized in that, described first set barrel structure is frustum cone structure away from one end of described tube structure, and described second tube-in-tube structure is provided with away from one end of described tube structure the rear end cap removably connected with described second tube-in-tube structure.
9. the mechanical fan-shaped pendulous device of ultrasonic image-forming system according to claim 8, it is characterized in that, described first set barrel structure is provided with female thread in one end of described tube structure, one end that described tube structure has bottom surface is provided with external screw thread, and one end that described first set barrel structure and described tube structure have bottom surface is removably connected by the mode of threaded engagement;
Described second tube-in-tube structure is provided with external screw thread near one end of described tube structure, described tube structure is provided with female thread in the one end away from described bottom surface, and described second tube-in-tube structure and described tube structure are removably connected by the mode of threaded engagement away from one end of described bottom surface;
Described second tube-in-tube structure is provided with external screw thread away from one end of described tube structure, is provided with female thread in described rear end cap, and described second tube-in-tube structure and described rear end cap are removably connected by the mode of threaded engagement.
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| CN200977415Y (en) * | 2006-11-30 | 2007-11-21 | 张国雄 | Solar energy dynamic furnishings |
| CN101558550A (en) * | 2006-12-23 | 2009-10-14 | 布劳恩股份有限公司 | Drive device for driving a brush element of an electric toothbrush |
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| JP4335617B2 (en) * | 2003-09-01 | 2009-09-30 | セイコープレシジョン株式会社 | Sector drive device for optical equipment |
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| CN200977415Y (en) * | 2006-11-30 | 2007-11-21 | 张国雄 | Solar energy dynamic furnishings |
| CN101558550A (en) * | 2006-12-23 | 2009-10-14 | 布劳恩股份有限公司 | Drive device for driving a brush element of an electric toothbrush |
| CN103151892A (en) * | 2013-03-22 | 2013-06-12 | 哈尔滨工业大学 | On-satellite microminiature limited angle torque device used for driving light inertial load |
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