CN208659366U - A kind of magnetic resonance sick bed horizontal movement driving structure - Google Patents
A kind of magnetic resonance sick bed horizontal movement driving structure Download PDFInfo
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- CN208659366U CN208659366U CN201820273357.0U CN201820273357U CN208659366U CN 208659366 U CN208659366 U CN 208659366U CN 201820273357 U CN201820273357 U CN 201820273357U CN 208659366 U CN208659366 U CN 208659366U
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- 230000033001 locomotion Effects 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 230000001360 synchronised effect Effects 0.000 claims description 12
- 238000010276 construction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
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Abstract
The utility model relates to a kind of magnetic resonance sick bed horizontal movement driving structures, including bed board, motor, retarder, transmission mechanism, axis, brake part A, brake part B, clutch components A, clutch components B, driving gear and driven gear, bed board bottom is equipped with rack gear；The output axis connection of retarder and motor, retarder connect axis by transmission mechanism；Brake part A and hospital bed main body are affixed, brake part A, clutch components B and driving gear with axis clearance fit；Brake part B and clutch components A are affixed with axis, and clutch components B and driving gear are affixed, and driving gear is engaged with driven gear, and driven gear is engaged with rack.The utility model keeps bed board Z-direction position certain by the design of brake lockable mechanism and clutch in magnetic resonance scan sequences, eliminates servo electrical machinery system electromagnetic interference problem, simplifies shielding construction, reduces cost；The push-pull effort in Manual push-pull bed board is reduced simultaneously.
Description
Technical field
The utility model relates to MR imaging apparatus technical fields more particularly to a kind of magnetic resonance sick bed horizontal movement to drive
Dynamic structure.
Background technique
In MR imaging apparatus, hospital bed is used to carry the scanning chamber (serial number 17) that patient passes in and out magnet (serial number 18).
As shown in Figure 1, hospital bed mainly includes hospital bed main body (serial number 12) moving up and down and horizontally movable bed board (serial number 1),
It scans intracavitary equipped with bed board guide rail (serial number 16).Bed board horizontal drive is all servo motor by process control requirement at present, is passed through
Rack-and-pinion or the driving of synchronizing wheel synchronous belt realize that bed board moves horizontally.Bed board is exactly by servo electricity after entering in magnet scanning area
Holding torque after machine powers on maintains the bed board Z-direction position constant, and bed board and horizontal driving system are to maintain always pass
Connection.
In magnetic resonance equipment scanning, because gradient coil vibrates, bed board may have smaller movement in Z-direction, and watch
It takes the holding torque after motor powers on and does not ensure that motor shaft is static and do not turn, cannot especially prevent motor shaft low-angle from turning
It is dynamic, and bed board movement caused by this small angular motion rotates is larger to Imaging；Secondly, if bed board is protected with motor holding torque
It is certain to hold bed board position, will power on to motor and controls signal, and electromagnetic interference problem can be brought in this way, influences into
Image quality amount will make lots of efforts in do shielding measure, and then claim again to using space to solve electromagnetic interference；Most
Afterwards, bed board cannot be detached from horizontal movement driving mechanism, and horizontal zone motivation structure is because there is the presence of individual stage reduction device and at different levels
Energy loss in transmission, strength is very big when drawing hospital bed for hand push under special circumstances.
Utility model content
The utility model is intended to provide magnetic resonance sick bed horizontal movement driving structure, can both keep bed board Z-direction position
Centainly, while again servo electrical machinery system electromagnetic interference problem can be eliminated；The push-pull effort in Manual push-pull bed board can also be reduced.
In order to achieve the above objectives, the technical solution adopted in the utility model is as follows:
A kind of magnetic resonance sick bed horizontal movement driving structure, including bed board, motor, retarder, transmission mechanism, axis, brake
Vehicle components A, brake part B, clutch components A, clutch components B, driving gear and driven gear, the bed board bottom installation
There is rack gear；
The output shaft of the motor is connect with retarder, and retarder connects axis by transmission mechanism；Axis sequentially passes through
Brake part A, brake part B, clutch components A, clutch components B and driving gear；The brake part A and hospital bed main body
It is affixed, brake part A, clutch components B and driving gear with axis clearance fit；Brake part B and clutch components A are equal
Affixed with axis, clutch components B and driving gear are affixed, and driving gear is engaged with driven gear, and driven tooth wheel and rack is nibbled
It closes.
Further, the transmission mechanism is synchronous belt drive mechanism.
Wherein, the synchronous belt drive mechanism includes active synchronization wheel, synchronous belt and driven synchronizing wheel, the active synchronization
Wheel is mounted on the output shaft of retarder, and the driven synchronizing wheel is mounted on axis.
Wherein, the axis is parallel to the horizontal plane, and the axis of axis and the moving direction of bed board are vertical.
Wherein, driving gear is located at below driven gear.
Further, motor is mounted in hospital bed main body.
Compared with prior art, the utility model has the following beneficial effects:
The utility model keeps bed board Z by the design of brake lockable mechanism and clutch in magnetic resonance scan sequences
Axis direction position is certain, eliminates servo electrical machinery system electromagnetic interference problem, simplifies shielding construction, reduces cost；Reduce simultaneously
Push-pull effort in Manual push-pull bed board.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prior art；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is the partial enlarged view in Fig. 2 at A；
Fig. 4 is schematic diagram when bed board does not enter magnet scanning chamber；
Fig. 5 is schematic diagram when bed board enters magnet scanning chamber；
In figure: 1- bed board, 2- motor, 3- retarder, 4- axis, 5- brake part A, brake part B, 7- clutch components
A, 8- clutch components B, 9- driving gear, 10- driven gear, 11- rack gear, 12- hospital bed main body, 13- synchronous belt, 14- are driven
Synchronizing wheel, 15- active synchronization wheel, 16- bed board guide rail, 17- scan chamber, 18- magnet.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality
It is further elaborated with novel.
As shown in Figure 2,3, 4, magnetic resonance sick bed horizontal movement driving structure disclosed by the utility model, including bed board 1, electricity
Machine 2, retarder 3, transmission mechanism, axis 4, brake part A5, brake part B6, clutch components A7, clutch components B8, master
Moving gear 9 and driven gear 10,1 bottom of bed board are equipped with rack gear 11；Transmission mechanism is synchronous belt drive mechanism, synchronous belt
Transmission mechanism includes active synchronization wheel 15, synchronous belt 13 and driven synchronizing wheel 14.
Motor 2 is mounted in hospital bed main body 12, and motor 2 is servo motor.Retarder 3 directly with the output shaft string of motor 2
Even, active synchronization wheel 15 is installed, active synchronization wheel 15 reaches power by synchronous belt 13 driven same on the output shaft of retarder 3
Step wheel 14, driven synchronizing wheel 14 is fastenedly connected with axis 4；Brake part A5 is fastenedly connected with hospital bed main body 12, is not able to rotate；It is logical
Axis 4 passes through brake part A5 and opposite its can be freely rotated；Brake part B6 and clutch components A7 is fastened with axis 4
Together；Clutch components B8 first fastens with driving gear 9 integral, then is sleeved on axis 4 and can oneself relative to axis 4
By rotating；Driven gear 10 is engaged with rack gear 11, driving gear 9.Wherein, axis 4 is parallel to the horizontal plane, the axis of axis 4 with
The moving direction of bed board 1 is vertical, and driving gear 9 is located at 10 lower section of driven gear.
Its course of work is as follows:
When needing the mobile bed board 1 of motor 2, brake part A5 is separated with brake part B6's, clutch components A7 and
Clutch components B8 closure is integral, and such 2 power of motor just passes to bed board 1: motor 2 --- retarder by following path
3 --- --- --- driven synchronizing wheel 14 --- axis 4 --- clutch (the closure entirety of synchronous belt 13 of active synchronization wheel 15
State) --- --- driven gear 10 --- rack gear 11 of driving gear 9 and bed board 1, to realize the movement of bed board 1.
As shown in figure 5, when the scanning chamber 17 that bed board 1 enters magnet 18 checks, clutch components A7 and clutch section
Part B8, which is still closed, to be integral, and brake part A5 is also closed with brake part B6 and is integral.In this way because of brake closure, axis
4 cannot a little be rotated by locked, and correspondingly driving gear 9 and clutch are also a little rotated by locked cannot do, such bed board 1
Just locked.
Because bed board 1 has locked inactive in Z-direction, also just can disconnect electricity without the need for 1 holding torque of motor
The power supply of machine 1 and communication function.It is generated due to having electromagnetic interference when motor servo system work, in this way stopping motor
Interference is eliminated, complicated shielding device is eliminated, saves cost, be easily installed.
When special circumstances need Manual push-pull bed board 1, clutch components A7 is separated with clutch components B8, clutch section
Part B8 can be freely rotated with driving gear 9 around axis 4；When pushing and pulling bed board 1 in this way, the rack gear 11 under bed board 1 just can only band
Dynamic driven gear 10, driving gear 9 and clutch components B8 rotation, to disengage the toothed belt transmission machine for generating high resistance
Structure and gear reducer mechanism substantially reduce artificial push-pull effort.
Certainly, the utility model can also have other numerous embodiments, without departing substantially from the spirit of the present invention and its essence
In the case where, those skilled in the art can make various corresponding changes and modifications, but these according to the utility model
Corresponding changes and modifications all should belong to the protection scope of the utility model the attached claims.
Claims (6)
1. a kind of magnetic resonance sick bed horizontal movement driving structure, it is characterised in that: including bed board (1), motor (2), retarder
(3), transmission mechanism, axis (4), brake part A (5), brake part B (6), clutch components A (7), clutch components B (8),
Driving gear (9) and driven gear (10), bed board (1) bottom are equipped with rack gear (11)；
The output shaft of the motor (2) is connect with retarder (3), and retarder (3) connects axis (4) by transmission mechanism；Axis
(4) brake part A (5), brake part B (6), clutch components A (7), clutch components B (8) and driving gear are sequentially passed through
(9)；The brake part A (5) and hospital bed main body (12) are affixed, brake part A (5), clutch components B (8) and driving gear
(9) with axis (4) clearance fit；Brake part B (6) and clutch components A (7) are affixed with axis (4), clutch components
B (8) and driving gear (9) are affixed, and driving gear (9) is engaged with driven gear (10), and driven gear (10) is nibbled with rack gear (11)
It closes.
2. magnetic resonance sick bed horizontal movement driving structure according to claim 1, it is characterised in that: the transmission mechanism is
Synchronous belt drive mechanism.
3. magnetic resonance sick bed horizontal movement driving structure according to claim 2, it is characterised in that: the toothed belt transmission
Mechanism includes active synchronization wheel (15), synchronous belt (13) and driven synchronizing wheel (14), and the active synchronization wheel (15), which is mounted on, to be subtracted
On the output shaft of fast device (3), the driven synchronizing wheel (14) is mounted on axis (4).
4. magnetic resonance sick bed horizontal movement driving structure according to claim 1, it is characterised in that: the axis (4) with
Horizontal plane is parallel, and the axis of axis (4) is vertical with the moving direction of bed board (1).
5. magnetic resonance sick bed horizontal movement driving structure according to claim 4, it is characterised in that: driving gear (9) position
Below driven gear (10).
6. magnetic resonance sick bed horizontal movement driving structure according to claim 1, it is characterised in that: motor (2) is mounted on
In hospital bed main body (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820273357.0U CN208659366U (en) | 2018-02-26 | 2018-02-26 | A kind of magnetic resonance sick bed horizontal movement driving structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820273357.0U CN208659366U (en) | 2018-02-26 | 2018-02-26 | A kind of magnetic resonance sick bed horizontal movement driving structure |
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| Publication Number | Publication Date |
|---|---|
| CN208659366U true CN208659366U (en) | 2019-03-29 |
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| CN201820273357.0U Active CN208659366U (en) | 2018-02-26 | 2018-02-26 | A kind of magnetic resonance sick bed horizontal movement driving structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108175410A (en) * | 2018-02-26 | 2018-06-19 | 奥泰医疗系统有限责任公司 | A kind of magnetic resonance sick bed horizontal movement driving structure |
-
2018
- 2018-02-26 CN CN201820273357.0U patent/CN208659366U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108175410A (en) * | 2018-02-26 | 2018-06-19 | 奥泰医疗系统有限责任公司 | A kind of magnetic resonance sick bed horizontal movement driving structure |
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Effective date of registration: 20230905 Granted publication date: 20190329 |
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Date of cancellation: 20231117 Granted publication date: 20190329 |
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