CN101822598B - Electric control sickbed - Google Patents
Electric control sickbed Download PDFInfo
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- CN101822598B CN101822598B CN 200910105915 CN200910105915A CN101822598B CN 101822598 B CN101822598 B CN 101822598B CN 200910105915 CN200910105915 CN 200910105915 CN 200910105915 A CN200910105915 A CN 200910105915A CN 101822598 B CN101822598 B CN 101822598B
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- sickbed
- control circuit
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Abstract
The invention discloses an electric control sickbed provided with nuclear magnetic resonance equipment and comprising a sickbed, a control circuit, two motors and two driving mechanisms, wherein the two motors are respectively connected with input pieces of the two driving mechanisms; output pieces of the two driving mechanisms are respectively connected with the sickbed; and the control circuit is connected with the two motors and controls work modes of the two motors, so that the output pieces of the two driving mechanisms synchronously move and drive a bed plate to move. The sickbed is positioned above a lower magnet of the nuclear magnetic resonance equipment; and the two motors and the two driving mechanisms are symmetrically arranged at two sides of the lower magnet. The two motors are controlled by the control circuit and drive the sickbed to linearly move through the two driving mechanisms. The electric control sickbed needs no screw rod, so that the space occupied by the whole sickbed can be reduced and the use space of a shield room can be enlarged; in addition, the invention can effectively improve the opening degree of the whole nuclear magnetic resonance equipment.
Description
Technical field
The invention relates to a kind of electric control sickbed.
Background technology
The electric control sickbed of nuclear magnetic resonance, NMR (MRI) equipment driven by electric device, realizes motion and location, user-friendly and use.
The electric control sickbed general control procedure of permanent-magnet type open MRI is: by controlling a motor that is positioned at the magnet rear lower, by the driven by motor leading screw, carry out the moment transmission by leading screw from the both sides of magnet, and then drive bed board straight line moves.But this kind be electric control sickbed to have following shortcoming:
1) need come transmission by leading screw, need drive sick bed by the drive mechanism that the magnet both sides arrange, the entire equipment occupation space is bigger, reduced the openness (openness refers to: as patient during at scanning position, the doctor is around the size in the space that the patient can directly serve) of nuclear magnetic resonance equipment around magnet;
2) owing to taken the certain space at magnet rear portion, make when screened room is installed the screen magnet, have to make magnet away from the screened room wall, thereby wasted the space of screened room.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the deficiencies in the prior art, and a kind of can reduce to take up room electric control sickbed is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of electric control sickbed, comprise sick bed, control circuit, two motors and two drive mechanisms, two motors are connected with the input component of two drive mechanisms respectively, the output of two drive mechanisms all is connected with sick bed, control circuit is connected with two motors, the duty of two motors of control circuit control is synchronized with the movement the output of two drive mechanisms and is being with the bed board straight line to move.
Described drive mechanism comprises line slideway, and output is the slide block of line slideway, and sick bed and slide block are fixed.The gear ratio of described drive mechanism is identical, control circuit comprises that the sick bed control unit reaches all connected two sensors, two motor drivers, two motors of two motor driver difference control connections, the positional information of sensor feedback bed board, the sick bed control unit is controlled motor driver according to this positional information, and the sick bed control unit is consistent the duty of two motors.
Described control circuit comprises that also two shift motions to bed board carry out spacing limit switch and for the relay of controlling two motor driver break-makes, two limit switches all are connected with the sick bed control unit, and relay is connected with the sick bed control unit.
Described drive mechanism comprises first belt gear, and first belt mechanism has a pair of first belt wheel and first driving-belt on first belt wheel of stretching tight, and first driving-belt and slide block are fixed, driven by motor first belt wheel.Described drive mechanism also comprises synchronous band mechanism and second belt gear, band mechanism has a pair of synchronous pulley and is with synchronously synchronously, second belt gear has a pair of second belt wheel and second driving-belt, drive mechanism also comprises decelerator and clutch, motor, decelerator and clutch power in turn connect, and clutch drives second belt wheel, and second belt wheel drives first belt wheel and synchronous pulley, sensor is photoelectric encoder, and this photoelectric encoder and synchronous pulley rotate synchronously.
Described sensor is selected from: photoelectric encoder, draw-wire displacement sensor, potentiometer.
A kind of electric control sickbed, it is provided to nuclear magnetic resonance equipment, comprise sick bed, control circuit, two motors and two drive mechanisms, two motors are connected with the input component of two drive mechanisms respectively, the output of two drive mechanisms all is connected with sick bed, control circuit is connected with two motors, and the duty of two motors of control circuit control is synchronized with the movement the output of two drive mechanisms and is being with the bed board straight line to move.Described sick bed is positioned at the top of the lower magnet of nuclear magnetic resonance equipment, and two motors and two drive mechanisms all are symmetrically set in the lower magnet both sides.Described drive mechanism comprises line slideway, and output is the slide block of line slideway, and sick bed and slide block are fixed, and this line slideway is fixed on the shell of lower magnet.
The invention has the beneficial effects as follows, two motors of control circuit control, two motors drive the sick bed straight line by two drive mechanisms and move, do not need leading screw, reduced the shared space of whole sick bed, improve the usage space of screened room, and can effectively improve the openness of whole nuclear magnetic resonance equipment.
Description of drawings
Fig. 1 is the electric control sickbed perspective view of present embodiment;
Fig. 2 is the electric control sickbed circuit block diagram of present embodiment;
Fig. 3 is the electric control sickbed installation schematic side view of present embodiment;
Fig. 4 is the electric control sickbed installation vertical view of present embodiment.
The specific embodiment
As shown in Figures 1 to 4, present embodiment is electric control sickbed for nuclear magnetic resonance equipment, it comprises sick bed, left motor 18, Left Drive mechanism, right motor 9, right drive mechanism and control circuit, left side motor 18 and Left Drive mechanism constitute left side transmission module 29, right motor 9 and right drive mechanism constitute the right side transmission module, and left side transmission module and right side transmission module are separate and be symmetrically set in the sick bed both sides.Control circuit comprises the sensors of two real-time feedback sick bed positional informationes, and control circuit make left and right side transmission module synchronous working, and then drive sick bed linear reciprocation moves according to the positional information control left and right side transmission module of feedback.
Sick bed comprises bed board 2 and the support of fixing with bed board 23, and bed board 2 is positioned at the top of the lower magnet 1 of nuclear magnetic resonance equipment, and the left and right side transmission module lays respectively at the left and right side of lower magnet 1.Left Drive mechanism comprises left decelerator 19, left clutch 17, multi-stage, belt drive mechanism and has the left line slideway 26 of left slider 24.Multi-stage, belt mechanism comprises first belt gear that power in turn connects, is with mechanism and second belt gear synchronously, first belt gear comprises a pair of first belt wheel 22 and first driving-belt 30, band mechanism comprises a pair of synchronous pulley 20 and is with 13, the second belt gears to comprise a pair of second belt wheel 15 and second driving-belt 14 synchronously synchronously.The left slider 24 of support 3 left sides and left line slideway 26 is fixing, and left slider 24 is fixed on first driving-belt 30 by left connecting plate 25.During 18 runnings of left side motor, driving second belt wheel 15 through left decelerator 19, left clutch 17 rotates, rotate synchronously through second driving-belt, 14 drive first belt wheels 22 and synchronous pulley 20 again, first belt wheel 22 drives first driving-belt 30, first driving-belt 30 drives bed board 2 straight lines of fixing with support 3 and moves, synchronous pulley 20 drives sensor 21 and rotates synchronously, and sensor 21 is as photoelectric encoder.The right side transmission module is the same with structure and the operation principle of left side transmission module, when right motor 9 turns round, drive each belt wheel 12,7 and each driving-belt 5 motion of multi-stage, belt drive mechanisms through right decelerator 8, right clutch 10, drive right slide block 4 motions of right line slideway 6 at last, right slide block 4 is fixed with the support right side, thereby is being with bed board 2 straight lines to move.First belt gear also comprises 23, two first belt wheels 22 of expansion tightening wheel and expansion tightening wheel 23 distributions triangular in shape.Left and right line slideway 26,6 all is fixed on the shell of lower magnet 1.Left clutch 17 is installed on the left socle 16, left clutch 17 by Left-wing Federation's axial organ with transmission of power to second belt wheel 15.Right clutch 10 is installed on the right support, and by right shaft coupling transmission of power is arrived belt wheel 12.
Control circuit comprises sick bed control unit and two motor drivers, control panel, two sensors, two limit switches and a solid-state relay of all being connected with the sick bed control unit, two motor drivers are connected with two motors respectively, relay all is connected with two motor drivers, the corresponding motor driver of each motor, a sensor and a limit switch.The sick bed control unit is connected with power supply with control panel, and control unit can adopt high performance DSP as control chip, is aided with the peripheral circuit interface, realizes various control functions.Control panel is used for instructing to the transmit operation of sick bed control unit.Motor driver is used for the control signal of sick bed control unit is converted to the driving signal of motor, and the duty of motor is monitored.Sensor is used for the positional information of feedback sick bed in real time.Limit switch is used for but the sick bed that straight line moves is limited in the stroke.In addition, in the image scanning process, in order to reduce interference, need to cut off the power supply of motor driver, can realize this function by relay.
Owing to adopt the control mode of bi-motor, need make the motor 18 of and arranged on left and right sides, 9 duty unanimity, this duty comprises direction and the rotating speed that motor rotates.The sensor of sick bed both sides feeds back the positional information of sick bed in real time, the sick bed control unit is the positional information of two sensor feedback of monitoring in real time, two motors 18,9 are carried out closed loop control, thereby make the duty unanimity of two motors, guaranteed whole electric control sickbed stability.
Owing to adopt the control mode of bi-motor, can save existing leading screw in electric control sickbed, thereby reduced whole electric control sickbed mechanical dimension, H1 among Fig. 3 represents to adopt the distance of the electric control sickbed nuclear magnetic resonance equipment of present embodiment 30 shell distance shielding house bodies of wall 27, H1-H2 represents that then existing nuclear magnetic resonance equipment is apart from the distance of shielding house body of wall, hence one can see that, this the electric control sickbed usage space that can save the space and improve screened room, and can effectively improve the openness of whole nuclear magnetic resonance equipment, openness can reach 300 degree (existing nuclear magnetic resonance equipment can reach 220 degree).
In the present embodiment, control circuit control left and right side transmission module makes the output of two transmission modules synchronous, and then drive sick bed straight line moves.For realizing synchronous purpose, can be that the gear ratio of left and right drive mechanism is identical, by control circuit the duty of left and right motor is consistent; Also can make the gear ratio difference of left and right drive mechanism, control the duty of left and right motor by control circuit, the output of left and right drive mechanism is got final product synchronously.Left and right drive mechanism can comprise belt gear, can comprise that also chain wheel driving mechanism, gear drive or other can drive the mechanism that the sick bed straight line moves.Sensor can be photoelectric encoder, also can be potentiometer, draw-wire displacement sensor, perhaps other can feed back the sensor of electric machine operation state or sick bed positional information, because the sick bed position also is to draw according to motor and drive mechanism, under the certain situation of drive mechanism gear ratio, the feedback electric machine operation state also is equivalent to feed back the sick bed positional information.
Present embodiment is electric control sickbed can to realize motion in one dimension, also can be applied in the multi-dimensional movement.For the situation of multi-dimensional movement, can each direction all adopt Double Motor Control, also can adopt the compound mode of bi-motor and single motor.Electric control sickbed can being applied on the nuclear magnetic resonance equipment, perhaps other need be equipped with on the medical treatment detection device of sick bed.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention does, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (8)
- One kind electric control sickbed, comprise sick bed, it is characterized in that: also comprise control circuit, two motors and two drive mechanisms, two motors are connected with the input component of two drive mechanisms respectively, the output of two drive mechanisms all is connected with sick bed, control circuit is connected with two motors, control circuit comprises two sensors of feedback sick bed positional information in real time, control circuit is according to the duty of two motors of Position Control of feedback, the output of two drive mechanisms is synchronized with the movement and is being with the bed board straight line to move; Described drive mechanism comprises line slideway, and output is the slide block of line slideway, and sick bed and slide block are fixed.
- 2. according to claim 1 electric control sickbed, it is characterized in that: the gear ratio of described drive mechanism is identical, control circuit comprises that also the sick bed control unit reaches all connected two motor drivers, two sensors all are connected with the sick bed control unit, two motors of two motor driver difference control connections, the positional information of sensor feedback bed board, the sick bed control unit is controlled motor driver according to this positional information, and the sick bed control unit is consistent the duty of two motors.
- 3. according to claim 2 electric control sickbed, it is characterized in that: described control circuit comprises that also two shift motions to bed board carry out spacing limit switch and reach the relay that is used for two motor driver break-makes of control, two limit switches all are connected with the sick bed control unit, and relay is connected with the sick bed control unit.
- 4. according to claim 2 electric control sickbed, it is characterized in that: described drive mechanism comprises first belt gear, first belt mechanism has a pair of first belt wheel and first driving-belt on first belt wheel of stretching tight, and first driving-belt and slide block are fixed, driven by motor first belt wheel.
- 5. according to claim 4 electric control sickbed, it is characterized in that: described drive mechanism also comprises synchronous band mechanism and second belt gear, band mechanism has a pair of synchronous pulley and is with synchronously synchronously, second belt gear has a pair of second belt wheel and second driving-belt, drive mechanism also comprises decelerator and clutch, motor, decelerator and clutch power in turn connect, clutch drives second belt wheel, second belt wheel drives first belt wheel and synchronous pulley, sensor is photoelectric encoder, and this photoelectric encoder and synchronous pulley rotate synchronously.
- 6. according to claim 2 electric control sickbed, it is characterized in that: described sensor is selected from: photoelectric encoder, draw-wire displacement sensor, potentiometer.
- One kind electric control sickbed, it is provided to the nuclear magnetic resonance equipment with lower magnet, comprise sick bed, it is characterized in that: also comprise control circuit, two motors and two drive mechanisms, two motors are connected with the input component of two drive mechanisms respectively, the output of two drive mechanisms all is connected with sick bed, control circuit is connected with two motors, control circuit comprises two sensors of feedback sick bed positional information in real time, control circuit is according to the duty of two motors of Position Control of feedback, the output of two drive mechanisms is synchronized with the movement and is being with the bed board straight line to move; Described drive mechanism comprises line slideway, and output is the slide block of line slideway, and sick bed and slide block are fixed, and this line slideway is fixed on the shell of lower magnet.
- 8. according to claim 7 electric control sickbed, it is characterized in that: described sick bed is positioned at the top of the lower magnet of nuclear magnetic resonance equipment, and two motors and two drive mechanisms all are symmetrically set in the lower magnet both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910105915 CN101822598B (en) | 2009-03-02 | 2009-03-02 | Electric control sickbed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910105915 CN101822598B (en) | 2009-03-02 | 2009-03-02 | Electric control sickbed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101822598A CN101822598A (en) | 2010-09-08 |
| CN101822598B true CN101822598B (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910105915 Expired - Fee Related CN101822598B (en) | 2009-03-02 | 2009-03-02 | Electric control sickbed |
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| CN (1) | CN101822598B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103300991B (en) * | 2013-06-21 | 2015-12-16 | 山东新华医疗器械股份有限公司 | Therapeutic bed driving device |
| CN104384666A (en) * | 2014-11-19 | 2015-03-04 | 柳州市益宏汽车配件有限公司 | Synchronous and coordinate welding device |
| CN106510712A (en) * | 2016-12-05 | 2017-03-22 | 苏州朗润医疗***有限公司 | Manual clutch device for nuclear magnetic resonance sickbed |
| CN107625589B (en) * | 2017-08-28 | 2023-10-27 | 天津大学 | Foldable exoskeleton wheelchair integrated multifunctional mobile auxiliary robot |
| CN110742766B (en) * | 2019-10-22 | 2021-10-15 | 上海东软医疗科技有限公司 | Transmission mechanism and scanning bed |
| CN111543998A (en) * | 2020-05-20 | 2020-08-18 | 深圳安科高技术股份有限公司 | Electric examination bed and control system thereof |
| CN117562764B (en) * | 2023-12-04 | 2024-05-07 | 惠州市凌盛医疗科技有限公司 | DC motor driven magnetic resonance sickbed system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5272776A (en) * | 1989-08-09 | 1993-12-28 | Kabushiki Kaisha Toshiba | Bed system for CT scanner |
| CN2848460Y (en) * | 2005-11-04 | 2006-12-20 | 中捷机床有限公司 | Bidriving mechanism for moving crossbeam |
| CN2923604Y (en) * | 2006-04-21 | 2007-07-18 | 天津鼎盛工程机械有限公司 | Belt-type material delivering double-motor synchronous driving apparatus |
| CN201033075Y (en) * | 2007-02-28 | 2008-03-12 | 西门子（中国）有限公司 | Sick bed moving device of resonance diagnosis system |
-
2009
- 2009-03-02 CN CN 200910105915 patent/CN101822598B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5272776A (en) * | 1989-08-09 | 1993-12-28 | Kabushiki Kaisha Toshiba | Bed system for CT scanner |
| CN2848460Y (en) * | 2005-11-04 | 2006-12-20 | 中捷机床有限公司 | Bidriving mechanism for moving crossbeam |
| CN2923604Y (en) * | 2006-04-21 | 2007-07-18 | 天津鼎盛工程机械有限公司 | Belt-type material delivering double-motor synchronous driving apparatus |
| CN201033075Y (en) * | 2007-02-28 | 2008-03-12 | 西门子（中国）有限公司 | Sick bed moving device of resonance diagnosis system |
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| CN101822598A (en) | 2010-09-08 |
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Granted publication date: 20130717 Termination date: 20160302 |
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