CN108785859A - Rotary frame and radiotherapy apparatus - Google Patents
Rotary frame and radiotherapy apparatus Download PDFInfo
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- CN108785859A CN108785859A CN201810866444.1A CN201810866444A CN108785859A CN 108785859 A CN108785859 A CN 108785859A CN 201810866444 A CN201810866444 A CN 201810866444A CN 108785859 A CN108785859 A CN 108785859A
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- 238000001959 radiotherapy Methods 0.000 title claims abstract description 23
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 36
- 230000001360 synchronised effect Effects 0.000 claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 26
- 230000000670 limiting effect Effects 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 15
- 238000005516 engineering process Methods 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 22
- 206010009244 Claustrophobia Diseases 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 208000019899 phobic disease Diseases 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 206010010264 Condition aggravated Diseases 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011275 oncology therapy Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
Abstract
The invention discloses a kind of rotary frame and radiotherapy apparatus, belong to the field of medical instrument technology.The rotary frame includes：Roller, pedestal and drive component, the roller are provided at both ends with slideway；It is provided at least two groups friction component on the pedestal, the friction pulley of all friction components rotates coaxially in every group of friction component, and is abutted with slideway；Drive component is connect at least one set of friction component at least two groups friction component, is configured as that at least one set of friction component is driven to rotate, is rotated with driving drum.Drive component driving difficulty is relatively low and reliability is higher, the both ends of the roller can rotate under the drive to one group of friction component being connect with drive component, the suffered driving force in the both ends of roller can be identical, drive component is located at the driving resultant force of roller in the center of roller, it avoids roller and bears tilting moment so that the overall stability of radiotherapy apparatus is higher.
Description
Technical field
The present invention relates to the field of medical instrument technology, more particularly to a kind of rotary frame and radiotherapy apparatus.
Background technology
Radiotherapy is an important means for the treatment of cancer, and radiotherapy equipment (abbreviation radiotherapy apparatus) is to carry out radiation
The critical medical device for the treatment of.In the related art, the drum-type rotary frame of radiotherapy apparatus includes：Fixed frame and roller,
Wherein, fixed frame is connect by spring bearing with roller, and for the roller for treatment head to be arranged, which can be with roller
Rotation and rotate.
But roller is typically mounted on an end face of fixed frame in current drum-type rotary frame, on the one hand,
The spring bearing needs to bear larger tilting moment, and the stability of drum-type rotary frame entirety is caused to reduce；On the other hand,
Drum-type rotary frame is integral structure, for the ease of transport, it will usually sacrifice the treatment space of drum-type rotary frame, suffer from
The treatment experience of person is bad.
Invention content
This application provides a kind of rotary frame and radiotherapy apparatus, can solve the stability of existing radiotherapy apparatus entirety
The problem of reduction.The technical solution is as follows：
In a first aspect, a kind of rotary frame is provided, including：
Roller, the roller are provided at both ends with slideway；
Pedestal, is provided at least two groups friction component on the pedestal, all friction components in every group of friction component
Friction pulley rotates coaxially, and is abutted with the slideway；
Drive component connect at least one set of friction component in at least two groups friction component, is configured as driving
At least one set friction component rotation, to drive the roller to rotate.
Optionally, the rotary frame further includes：V belt translation component,
The driving component is located at the chassis outer side, and the drive shaft of the driving component and at least one set of friction
The rotation axis of the friction pulley of coaxial rotating is parallel in component, the driving component by the V belt translation component drive described in extremely
Few one group of friction component rotation.
Optionally, the driving component further includes：Driving motor and the first synchronous pulley, one end connection of the drive shaft
There are the driving motor, the other end of the drive shaft to be connected with first synchronous pulley；
Each friction component further includes in at least one set of friction component being connect with the driving component：Second synchronous pulley
With the first transmission shaft, wherein second synchronous pulley is coaxially connected by first transmission shaft and the friction pulley, and leads to
The V belt translation component is crossed to connect with first synchronous pulley.
Optionally, the V belt translation component includes：Synchronous belt or friction-type transmission belt.
Optionally, each friction component further includes in at least one set of friction component being connect with the driving component：Torque
Limiter, the torque limiter are socketed in second synchronous pulley and are driven axis connection with described first.
Optionally, each friction component further includes in at least one set of friction component not connect with the driving component：System
Dynamic device and flat rubber belting, in the drum braking, the brake holds friction pulley tightly by the flat rubber belting.
Optionally, the rotary frame further includes：Multiple radial direction locating parts, each radial locating part and the roller
An end face on the inner surface of slideway that is arranged abut.
Optionally, the rotary frame further includes：Multiple axial limiting parts, each axial limiting part and the roller
An end face abut.
Optionally, the rotary frame further includes：Roller angle detection components, the roller angle detection components with it is described
One end of roller is in contact.
Second aspect provides a kind of radiotherapy apparatus, including：Rotary frame, and be arranged in the rotary frame
On treatment head, the rotary frame is any rotary frame of first aspect.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought includes at least：
Drive component is connect at least one set of friction component at least two groups friction component, which is configured as
At least one set of friction component rotation is driven, is rotated with driving drum, rolling is directly driven compared to drive component in the related technology
Cylinder rotates, and the drive component driving difficulty in the embodiment of the present invention is relatively low and reliability is higher.It the both ends of the roller can be
It rotates under the drive to one group of friction component (driving friction component) being connect with drive component, the equal institute in both ends of roller
The driving force being subject to can be identical, and drive component is located at the driving resultant force of roller in the center of roller, avoids roller and bears to incline
Cover torque so that the overall stability of radiotherapy apparatus is higher.
Also, slideway in the roller and between connection relation between friction pulley belong to abutting relation, roller is easy to
It disassembles, need not consider further that influence of the size to transport difficulty of roller, therefore the roller in the embodiment of the present invention is straight
The bigger that diameter can be done effectively raises the treatment experience of patient.
Meanwhile the axis of the drive shaft in the drive component and the driving rotation axis of friction pulley are parallel and in gravity direction
On there are certain distances, when being arranged the devices such as treatment head on the outer surface of roller, in the process of the rotation of roller
In, these devices will not collide with pedestal so that under the premise of the roller is identical with the cylinder sizes shown in the relevant technologies,
The treatment space of the roller is larger, and effectively when being treated to the patient with claustrophobia, the patient's puts under house arrest probably
Fear the probability of disease aggravation.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of structural schematic diagram for drum-type rotary frame that the relevant technologies provide；
Fig. 2 is a kind of structural schematic diagram of rotary frame provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of pedestal provided in an embodiment of the present invention；
Fig. 4 is the vertical view of the pedestal shown in Fig. 3；
Fig. 5 is a kind of structural schematic diagram for radiotherapy apparatus that the relevant technologies provide；
Fig. 6 is a kind of structural schematic diagram of driving friction component provided in an embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram of support friction component provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of a kind of radial locating part and axial limiting part provided in an embodiment of the present invention；
Fig. 9 is a kind of structural schematic diagram of angle detection components provided in an embodiment of the present invention；
Figure 10 is the structural schematic diagram of another pedestal provided in an embodiment of the present invention；
Figure 11 is the structural schematic diagram of another rotary frame provided in an embodiment of the present invention；
Figure 12 is the structural schematic diagram of another rotary frame provided in an embodiment of the present invention.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Referring to FIG. 1, Fig. 1 is a kind of structural schematic diagram for drum-type rotary frame that the relevant technologies provide, the drum-type
Rotary frame may include：Roller 01 and fixed frame 02 can pass through spring bearing between the roller 01 and fixed frame 02
03 connection, the roller 01 can be around rotation axis L0 along rotating clockwise or counterclockwise, and treatment head can turn with roller 01
It moves and rotates.
But the roller 01 is typically mounted on an end face of fixed frame 02, spring bearing 03 may bear compared with
Big tilting moment causes the overall stability of the drum-type rotary frame relatively low.Also, drum-type rotary frame is integral
Structure, for the ease of transporting in a narrow space, it will usually sacrifice the treatment space of drum-type rotary frame, the treatment of patient
It experiences bad.
Referring to FIG. 2, Fig. 2 is a kind of structural schematic diagram of rotary frame provided in an embodiment of the present invention, the rotary frame
May include：
Roller 10, pedestal 20 and drive component 30.
It is both provided with slideway 11 on two end faces of the roller 10.
It is provided at least two groups friction component on the pedestal 20.Each friction component in every group of friction component includes：
Friction pulley.The friction pulley of all friction components in every group of friction component rotates coaxially, and is abutted with slideway 11.Example
, which may include：One group of driving friction component 40 and one group of support friction component 50.Driving friction
Friction pulley in component 40 is driving friction pulley 41, and it is support friction pulley 51 to support the friction pulley in friction component 50.
Optionally, two driving friction components 40 and two support friction components 50 can be arranged on pedestal 20, this two
Two driving friction pulleys 41 in a driving friction component 40 rotate coaxially, each to drive friction pulley 41 upper with roller 10 respectively
A slideway 11 being arranged abuts；Two support friction pulleys 51 in this two support friction components 50 rotate coaxially, Mei Gezhi
Support friction pulley 51 is abutted with a slideway 11 of the upper setting of roller 10 respectively.
The drive component 30 can also be arranged on pedestal 20, which can connect at least one set of friction component
It connects, which is configured as that at least one set friction component is driven to rotate, and is rotated with driving drum 10.It is exemplary, it should
Drive component 30 can be connect with each driving friction component 40, which can drive owns in the rotary frame
Driving friction pulley 41 rotate, and then drive roller 10 rotate.In 10 rotation process of roller, the branch in friction component 50 is supported
Support friction pulley 51 can play a supporting role to roller 10 so that roller 10 can be rotated smoothly.
In embodiments of the present invention, drive component 30 be by control the friction pulley at least one set of friction component (namely
Drive friction pulley 41) it rotates, to drive roller 10 to rotate, directly drives roller compared to drive component in the related technology and turn
Dynamic, the driving of drive component 30 difficulty in the embodiment of the present invention is relatively low and reliability is higher.The both ends of roller 10 can drive
It rotates under the drive of dynamic friction component 40, the driving force suffered by the both ends of roller 10 can be identical, and drive component is to rolling
The driving resultant force of cylinder 10 is located at the center of roller 10, avoids roller 10 and bears tilting moment so that the entirety of radiotherapy apparatus is steady
It is qualitative higher.
Also, slideway 11 in the roller 10 and between friction pulley (namely driving friction pulley 41 or support friction pulley 51)
Connection relation belongs to abutting relation, and roller 10 is easily removable to get off, and the size of roller 10 need not be considered further that transport difficulty
Influence, therefore the bigger that the diameter of the roller in the embodiment of the present invention can be done effectively raises the treatment experience of patient.
In conclusion rotary frame provided in an embodiment of the present invention, including：Roller, pedestal and drive component, the roller
It is provided at both ends with slideway；It is provided at least two groups friction component on pedestal, all friction components rubs in every group of friction component
It wipes wheel to rotate coaxially, and is abutted with slideway；Drive component and at least one set of friction component at least two groups friction component
Connection, the drive component are configured as that at least one set of friction component is driven to rotate, are rotated with driving drum, compared to the relevant technologies
In drive component directly drive roller rotation, the drive component driving difficulty in the embodiment of the present invention is relatively low and reliability compared with
It is high.It the both ends of the roller can be under the drive to one group of friction component (driving friction component) being connect with drive component
It rotates, the driving force that the both ends of roller are suffered can be identical, and drive component is located at roller to the driving resultant force of roller
Center, avoid roller and bear tilting moment so that the overall stability of radiotherapy apparatus is higher.
Also, slideway in the roller and between connection relation between friction pulley belong to abutting relation, roller is easy to
It disassembles, need not consider further that influence of the size to transport difficulty of roller, therefore the bigger that the diameter of the roller can be done,
Effectively raise the treatment experience of patient.
Optionally, referring to FIG. 3, Fig. 3 is a kind of structural schematic diagram of pedestal provided in an embodiment of the present invention, the whirler
Frame further includes：V belt translation component 60, drive component 30 pass through band at least one set of friction component (namely driving friction component 40)
Transmission component 60 connects.Drive component 30 can be located at the outside of pedestal 20, which may include drive shaft 31, should
Drive shaft 31 and the rotation axis of the friction pulley (namely driving friction pulley 41) of coaxial rotating in at least one set friction component are flat
Row.
In embodiments of the present invention, drive component 30 further includes：Driving motor 32 and the first synchronous pulley 33, the drive shaft
31 one end is connected with driving motor 32, and the other end of the drive shaft 31 is connected with the first synchronous pulley 33.With drive component 30
Each friction component (namely each driving friction component 40) further includes at least one set of friction component of connection：Second synchronous belt
Wheel 42 and first transmission shaft (being not drawn into Fig. 3), second synchronous pulley 42 pass through (namely the driving of the first transmission shaft and friction pulley
Friction pulley 41) it is coaxially connected, which is connect by V belt translation component 60 with the first synchronous pulley 33.It is optional
, which may include：Synchronous belt or friction-type transmission belt.
It is exemplary, for the clearer connection relation found out between drive component 30 and driving friction component 40, please join
Fig. 4 is examined, Fig. 4 is the vertical view of the pedestal shown in Fig. 3, if being provided with two driving friction components 40, V belt translation on pedestal 20
The number of component 60 is two, and the number of drive shaft 31 is also two in drive component 30.At this point, drive component 30 can also wrap
It includes：Commutator (namely dynamic branch gear-box) 34, first end and the motor output shaft in driving motor 32 of the commutator 34
Be fixedly connected, the second end of the commutator 34 is fixedly connected with one end of a drive shaft 31, the third end of the commutator 34 with
One end of another drive shaft 31 is fixedly connected.One end of each V belt translation component 60 can be connect with the first synchronous pulley 33,
The other end of each V belt translation component 60 can be connect with the second synchronous pulley 42.Drive friction component 30 in drive shaft 31 with
Drive the rotation axis of friction pulley 41 parallel, when the drive shaft 31 in drive component 30 rotates, which can be successively
Drive the first synchronous pulley 33, V belt translation component 60, the second synchronous pulley 42, the first transmission shaft 43 and 41 turns of friction pulley of driving
It is dynamic.
In order to enable driving friction pulley 41 is easier to drive roller rotation rotation, the other end of each drive shaft 31 and one
Retarder 35 is connect after connecting with the first synchronous pulley 33, and in the case where output power is certain, rotating speed is smaller, and torque is bigger,
The rotating speed of driving friction pulley 41 in the driving friction component 40 that can be connected to it by retarder 35 plays decelerating effect, makes
The torque of bigger can be obtained by obtaining the driving friction pulley 41, so that the driving friction pulley 41 is easier to drive roller rotation.
Optionally, which can also include：Band-type brake device 36, the motor output shaft of driving motor 31 successively with this
Band-type brake device 36 is fixedly connected with the first end of commutator 34, when needing control roller to stop operating, embracing in drive component 30
Lock device 36 can make the driving in driving friction component 40 rub with locking motor output shaft by commutator 34 and drive shaft 31
It wipes wheel 41 to stop operating, so that the slideway on roller is driven the obstruction of friction pulley 41 and stops operating.
It in the related art, should as shown in figure 5, Fig. 5 is a kind of structural schematic diagram for radiotherapy apparatus that the relevant technologies provide
Radiotherapy apparatus includes：Roller 01 and pedestal 03, are provided with friction pulley 04 on pedestal 03, and roller 01 can be arranged in friction pulley 04
On.The radiotherapy apparatus can also include：Drive component 05, drive shaft and the friction pulley 04 of the drive component 05 are directly connected to, should
The rotation axis coincident of the axis and friction pulley 04 of drive shaft.If being arranged the devices such as treatment head in the outer surface of roller 01
On, then during the rotation of roller 01, these devices may collide with pedestal 03；If the setting of these devices is existed
On the inner surface of roller 01 or the end face of roller 01, then the treatment space in roller 01 can greatly reduce, therefore the radiotherapy is set
Standby treatment space is smaller, when being treated to the patient with claustrophobia, the aggravation of the claustrophobia of the patient it is general
Rate is larger.
And in embodiments of the present invention, as shown in Figure 3 and Figure 4, since drive component 30 is by 60 band of V belt translation component
What dynamic driving friction pulley 41 rotated, therefore the rotation axis of the axis of the drive shaft 31 in drive component 30 and driving friction pulley 41
It is misaligned, and in embodiments of the present invention, the axis of the drive shaft 31 is with the rotation axis of driving friction pulley 41 in gravity direction
On there are certain distances, when being arranged the devices such as treatment head on the outer surface of roller, in the process of the rotation of roller
In, these devices will not collide with pedestal 20 so that, should under the premise of the roller is identical with the cylinder sizes shown in Fig. 5
The treatment space of roller is larger, effectively when being treated to the patient with claustrophobia, the fear of confined spaces of the patient
The probability of disease aggravation.
Optionally, as shown in fig. 6, Fig. 6 is a kind of structural schematic diagram of driving friction component provided in an embodiment of the present invention,
Driving friction component 40 may include：First support base 40a, the second synchronizing wheel 42 can be arranged the one of the first support base 40a
On a end face, driving friction pulley 41 can be arranged in the first support base 40a, the part which abuts with slideway
It needs exposed outside the first support base 40a.The driving friction component 40 can also include：Torque limiter 44, the torque limit
Device 44 is socketed in the second synchronous pulley 42 and is connect with the first transmission shaft 43.Exemplary, which can be with
One transmission shaft 43 is fixedly connected by interference fit, which is fixed by fixing screws and the second synchronizing wheel 42 connects
It connects, which can be fixedly connected with the first transmission shaft 43 by internal expansion sleeve.In a kind of optional realization side
In formula, when the preponderance for the roller that the driving friction pulley 41 is driven, torque limiter 44 can release and the first transmission
Being fixedly connected between axis 43 so that the first transmission shaft 43 no longer rotates, and may be implemented pair by the torque limiter 44
The overload protection of drum driven.
Each friction component in at least one set of friction component in embodiments of the present invention, not connect with drive component (
Support friction component) further include：Brake and flat rubber belting, in drum braking, the brake by flat rubber belting hold tightly friction pulley (
Support friction pulley).It is exemplary, referring to FIG. 7, Fig. 7 is a kind of structure of support friction component provided in an embodiment of the present invention
Schematic diagram, the support friction component 50 can also include：Flat rubber belting 52, third synchronizing wheel 53, the 4th synchronizing wheel 54 and brake 55,
The third synchronizing wheel 53 is fixedly connected with support friction pulley 51, and the 4th synchronizing wheel 54 is fixedly connected with brake 55, and the third is same
Step wheel 53 is connect by flat rubber belting 52 with the 4th synchronizing wheel 54, and when drum braking, brake 53 can hold the 4th synchronizing wheel 54 tightly,
And support friction pulley 51 is held tightly by flat rubber belting 52 and third synchronizing wheel 53.
For example, as shown in fig. 7, the support friction component 50 can also include：Second support base 50a, the third synchronizing wheel
53, the 4th synchronizing wheel 54, flat rubber belting 52 and brake 55 are arranged on an end face of second support base 50a, support friction
Wheel 51 is arranged in the second support base 50a, and the part which abuts with slideway needs exposed in the second support base
Outside 50a.The support friction component 50 can also include second driving shaft 56 and third transmission shaft 57, support friction pulley 51 and second
It is fixedly connected by interference fit between transmission shaft 56, which can pass through screw or pin with second driving shaft 56
Nail is fixedly connected, to realize being fixedly connected between third synchronizing wheel 53 and support friction pulley 51；4th synchronizing wheel 54 with
Third transmission shaft 57 is fixedly connected by connecting key, which is fixedly connected with third transmission shaft 57 by connecting key, from
And realize being fixedly connected between the 4th synchronizing wheel 54 and brake 55.The brake 55 can be electromagnetic brake, work as needs
When roller stops operating, which can hold third transmission shaft 57 tightly so that the 4th synchronizing wheel 54 stops operating, and passes through
Flat rubber belting 52 and third synchronizing wheel 53 can make support friction pulley 51 stop operating, so that the slideway on roller is supported and rubs
It wipes the obstruction of wheel 51 and stops operating.
In embodiments of the present invention, when needing control roller to stop operating, the band-type brake device in drive component can lock
Motor output shaft can make the driving friction pulley in driving friction component stop operating by commutator and drive shaft；Each
It supports in friction component, brake can make support friction pulley stop operating, and pass through the resistance for driving friction pulley with supporting friction pulley
Hindering can make roller stop operating.Driving friction component in the embodiment of the present invention all has braking work with support friction component
Can, the roller in rotation process can be made quickly to stop operating.Also, drive friction component in by way of V belt translation band
Dynamic driving friction pulley rotation, it is also to be made by way of V belt translation between support friction pulley and brake to support in friction component
It is attached, effectively reduces the noise sent out when roller rotation.
Optionally, which further includes：Multiple radial direction locating parts, an end face of each radial direction locating part and roller
The inner surface of the slideway of upper setting abuts, and can prevent roller from falling off from pedestal by the radial direction locating part.Optionally, the rotation
Favourable turn frame further include：Multiple axial limiting parts, each axial limiting part are abutted with an end face of roller, pass through the axial limiting
Part can prevent the play of roller in the axial direction.Radial locating part and axial limiting part can limit the degree of freedom of roller,
So that there is only ones degree of freedom namely the roller can only rotate for the roller.
It is exemplary, can a diameter be set on each friction component (namely driving friction component or support friction component)
To locating part and an axial limiting part, for example, Fig. 8 is a kind of radial locating part and axial limiting provided in an embodiment of the present invention
The first support base in driving friction component can be arranged in the structural schematic diagram of part, the radial direction locating part 71 and axial limiting part
On 40a, it can also be arranged on the second support base 50a of support friction component, the radial direction locating part 71 and axial limiting part 72
It all can be roller structure.
In each radial phase part 71, the cunning that is arranged on the idler wheel surface of the radial direction locating part 71 and roller end face
The inner surface in road abuts, axis and the friction pulley (namely driving friction pulley 41 or support friction pulley 51) of the radial direction locating part 71
Rotation axis is parallel.When roller rotates, which can also rotate therewith so that the slideway quilt being arranged on roller
Friction pulley is blocked with radial locating part 71, effectively avoids the phenomenon that roller appearance is fallen from pedestal.
In each axial limiting part 72, the idler wheel surface of the axial limiting part 72 is abutted with roller end face, the axis
The rotation at position abutted into the end face of locating part 72 and an end face of roller with the idler wheel surface of the axial limiting part 72
Direction is parallel.When roller rotates, which can also rotate therewith, and rolling is limited by the axial limiting part 72
Cylinder movement in the axial direction, the phenomenon that effectively avoiding the appearance play of roller in the axial direction.
In embodiments of the present invention, when roller rotates, radial locating part 71 can also turn therewith with axial limiting part 72
It is dynamic, under the premise of not influencing roller rotation, effectively constrain the degree of freedom of roller so that the roller only have that there are one freedom
Degree namely the roller can only rotate.
Optionally, which can also include：Angle detection components, one end phase of the angle detection components and roller
Contact.It is exemplary, referring to FIG. 9, Fig. 9 is a kind of structural schematic diagram of angle detection components provided in an embodiment of the present invention, it should
Angle detection components 80 may include：Gear 81, encoder 82 and gear ring (being not drawn into Fig. 9) are detected, gear ring setting is being rolled
The edge of the outside for the slideway being arranged on one end face of cylinder, the detection gear 81 and encoder 82 are arranged on pedestal,
The detection gear 81 can be engaged with gear ring, which there is transmission axle, detection gear 81 can pass through this with encoder
Transmission axle is fixedly connected.When roller rotates, gear ring also rotates therewith, which can drive detection gear 81 to rotate, the inspection
Surveying gear 81 can drive transmission axle to rotate, and encoder 82 can detect roller rotation by the number of turns of the rotation of transmission axle
Angle.
For example, the angle detection components 80 can also include：Gear support frame 83, one end and bottom of the gear support frame 83
Seat is fixedly connected, and detection gear 81 and encoder 82 are provided on the other end of the gear support frame 83, it should be noted that figure
9 schematically illustrate so that use gear support frame 83 will detect gear 81 and encoder 82 is arranged on pedestal as an example,
In another optional examination under type, the detection gear 81 and encoder 82 can be arranged directly on pedestal, and the present invention is real
Example is applied not limit this.
Optionally, as shown in Figure 10, Figure 10 is the structural schematic diagram of another pedestal provided in an embodiment of the present invention, rotation
Rack can also include：Manual actuation component 90.After drive shaft in drive component 30 can be connect with retarder 35, elder generation and hand
Dynamic drive component 90 connects, then is connect with the first synchronous pulley 33.If the drive component 30 in rotary frame powers off, operating personnel
Roller rotation can be driven by manual actuation component 90, and then is realized in the case where drive component 30 powers off, and driven manually
Dynamic roller rotation.
Optionally, the structural schematic diagram that 1, Figure 11 is another rotary frame provided in an embodiment of the present invention is please referred to Fig.1,
The rotary frame can also include：Roller locking assembly 100, the roller locking assembly 100 may include：Supporting rod 101, the branch
The first end of strut 101 is fixedly connected with pedestal 20, and positioning pin 102 is provided in the second end of the supporting rod 101, roller 10
The pin hole coordinated with positioning pin 102 is additionally provided on one end face, which is configured to pass through pin hole, is rolled with fixed
Cylinder 10.It in embodiments of the present invention, can be by the positioning in roller locking assembly 100 when needing to repair roller 10
Pin 102 is inserted into the pin hole being arranged on roller 10 so that roller 10 can be fixed on pedestal 20.
Optionally, the structural schematic diagram that 2, Figure 12 is another rotary frame provided in an embodiment of the present invention is please referred to Fig.1,
Rotary frame further includes：Slip ring assembly 110, the slip ring assembly 110 may include：Slip ring structure 111 and brush body supporting rack 112,
One end of the brush body supporting rack 112 is fixedly connected with pedestal 21, and brush body structure is provided on the other end of the brush body supporting rack 112
113, which is arranged on an end face of roller 10, and slip ring structure 111 is abutted with brush body structure 113.In this hair
In bright embodiment, treatment head can be set, which can be electrically connected with slip ring structure 111, base on the outer surface of roller 10
The drive component 30 that is arranged can be electrically connected with brush body structure 113 on seat 21, by slip ring assembly 110 may be implemented treatment head and
Signal transmission between drive component 30.
In conclusion rotary frame provided in an embodiment of the present invention, including：Roller, pedestal and drive component, the roller
It is provided at both ends with slideway；It is provided at least two groups friction component on pedestal, all friction components rubs in every group of friction component
It wipes wheel to rotate coaxially, and is abutted with slideway；Drive component and at least one set of friction component at least two groups friction component
Connection, the drive component are configured as that at least one set of friction component is driven to rotate, are rotated with driving drum, compared to the relevant technologies
In drive component directly drive roller rotation, the drive component driving difficulty in the embodiment of the present invention is relatively low and reliability compared with
It is high.It the both ends of the roller can be under the drive to one group of friction component (driving friction component) being connect with drive component
It rotates, the driving force that the both ends of roller are suffered can be identical, and drive component is located at roller to the driving resultant force of roller
Center, avoid roller and bear tilting moment so that the overall stability of radiotherapy apparatus is higher.
Also, slideway in the roller and between connection relation between friction pulley belong to abutting relation, roller is easy to
It disassembles, need not consider further that influence of the size to transport difficulty of roller, therefore the bigger that the diameter of the roller can be done,
Effectively raise the treatment experience of patient.
Also, slideway in the roller and between connection relation between friction pulley belong to abutting relation, roller is easy to
It disassembles, need not consider further that influence of the size to transport difficulty of roller, therefore the roller in the embodiment of the present invention is straight
The bigger that diameter can be done effectively raises the treatment experience of patient.
Meanwhile the axis of the drive shaft in the drive component and the driving rotation axis of friction pulley are parallel and in gravity direction
On there are certain distances, when being arranged the devices such as treatment head on the outer surface of roller, in the process of the rotation of roller
In, these devices will not collide with pedestal so that under the premise of the roller is identical with the cylinder sizes shown in the relevant technologies,
The treatment space of the roller is larger, and effectively when being treated to the patient with claustrophobia, the patient's puts under house arrest probably
Fear the probability of disease aggravation.
The embodiment of the present invention additionally provides a kind of radiotherapy apparatus, which may include rotary frame, and setting
Treatment head on the rotating gantry, the treatment head can be on the outer surfaces for the roller being arranged in the rotary frame.The rotation
Rack can be the rotary frame shown in Fig. 2, Figure 11 or Figure 12.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of rotary frame, which is characterized in that including：
Roller, the roller are provided at both ends with slideway；
Pedestal, is provided at least two groups friction component on the pedestal, the friction of all friction components in every group of friction component
Wheel rotates coaxially, and is abutted with the slideway；
Drive component connect at least one set of friction component in at least two groups friction component, is configured as described in drive
At least one set of friction component rotation, to drive the roller to rotate.
2. rotary frame according to claim 1, which is characterized in that the rotary frame further includes：V belt translation component,
The driving component is located at the chassis outer side, and the drive shaft of the driving component and at least one set of friction component
The rotation axis of the friction pulley of middle coaxial rotating is parallel, and the driving component passes through at least one described in V belt translation component drive
Group friction component rotation.
3. rotary frame according to claim 2, which is characterized in that
The driving component further includes：One end of driving motor and the first synchronous pulley, the drive shaft is connected with the driving
The other end of motor, the drive shaft is connected with first synchronous pulley；
Each friction component further includes in at least one set of friction component being connect with the driving component：Second synchronous pulley and
One transmission shaft, wherein second synchronous pulley is coaxially connected by first transmission shaft and the friction pulley, and passes through institute
V belt translation component is stated to connect with first synchronous pulley.
4. rotary frame according to claim 3, which is characterized in that the V belt translation component includes：
Synchronous belt or friction-type transmission belt.
5. rotary frame according to claim 3, which is characterized in that at least one set of friction being connect with the driving component
Each friction component further includes in component：Torque limiter, the torque limiter are socketed in second synchronous pulley simultaneously
With the first transmission axis connection.
6. rotary frame according to claim 1, which is characterized in that at least one set not connect with the driving component is rubbed
Each friction component further includes in brush assembly：Brake and flat rubber belting, in the drum braking, the brake passes through described flat
Band holds friction pulley tightly.
7. rotary frame according to claim 1, which is characterized in that the rotary frame further includes：Multiple radial limits
Part, each radial locating part are abutted with the inner surface for the slideway being arranged on an end face of the roller.
8. rotary frame according to claim 1, which is characterized in that the rotary frame further includes：Multiple axial limitings
Part, each axial limiting part are abutted with an end face of the roller.
9. rotary frame according to claim 1, which is characterized in that the rotary frame further includes：Roller angle detects
Component, the roller angle detection components are in contact with one end of the roller.
10. a kind of radiotherapy apparatus, which is characterized in that including：Rotary frame, and the treatment that is arranged on the rotary frame
Head, the rotary frame are any rotary frame of claim 1 to 9.
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| CN201810866444.1A CN108785859A (en) | 2018-08-01 | 2018-08-01 | Rotary frame and radiotherapy apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810866444.1A CN108785859A (en) | 2018-08-01 | 2018-08-01 | Rotary frame and radiotherapy apparatus |
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