CN105987091A - Gear clutch mechanism and radiotherapy equipment including same - Google Patents
Gear clutch mechanism and radiotherapy equipment including same Download PDFInfo
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- CN105987091A CN105987091A CN201510058207.9A CN201510058207A CN105987091A CN 105987091 A CN105987091 A CN 105987091A CN 201510058207 A CN201510058207 A CN 201510058207A CN 105987091 A CN105987091 A CN 105987091A
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- driven gear
- guide rail
- installing plate
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Abstract
The invention provides a gear clutch mechanism and radiotherapy equipment including the same. The gear clutch mechanism is mounted at a base and comprises a driven gear, a guiding component, a mounting plate, a driving gear and a pushing assembly, wherein the driven gear is rotatably fixed to the base; the guiding component is fixed on the base; the mounting plate is supported by the guiding component in a sliding manner; the driving gear is rotatably fixed to the mounting plate; the pushing assembly is used for pushing the mounting plate to slide along the guiding component, and when the pushing assembly pushes the mounting plate to slide close to the driven gear, the driving gear moves close to the driven gear until being mutually meshed with the driven gear; and when the pushing assembly pushes the mounting plate to slide away from the driven gear, the driving gear moves far from the driven gear until being mutually separated from the driven gear. The gear clutch mechanism adopts a special cam structure, so that the clutching of the gear in the radial direction can be conveniently realized. By adjusting the profile of the cam, a relatively large dead angle can be formed, and a good locking function can be realized.
Description
Technical field
The invention mainly relates to medical instruments field, particularly relate to a kind of gear clutch and include its radiotherapy
Equipment.
Background technology
Radiotherapy is a kind of important means treating malignant tumor at present, generally uses clinac.
Fig. 1 is the schematic diagram of existing clinac, as it is shown in figure 1, the clinac 100 of routine
Mainly it is made up of frame 110 and treatment 120 (radiation head).In clinac 100, in order to more
The shape of good simulation tumor, treatment 120 would generally rotate around the Z axis of clinac 100.
Due to high accuracy and the requirement of high security of clinac, treatment head can be in self-locking state.
In view for the treatment of head is high failure system, it needs to safeguard frequently and keep in repair.When it is keeped in repair, if can
The most more convenient with hand rotation treatment head.But, practical operation is in self-locking state, manually due to treatment head
The realization rotated just seems relatively complicated.
In the prior art, the most generally by driving input increase to be manually entered mode and footpath at drive mechanism
Manual rotation when the mode of clutch realizes treating head maintenance.Fig. 2 is that existing clinac is driving
The schematic diagram of the structure 200 that input increase is manually entered.As in figure 2 it is shown, can the worm speed reducer of self-locking
The input of 210 increases manual gear 220, and manually the rotation of gear 220 drives the rotation for the treatment of 230
Turn.But this implementation, owing to the speed reducing ratio of worm speed reducer is bigger, it is often necessary to manual gear 220
Rotating a lot of turning could drive treatment 230 to rotate a circle, and the most this implementation is relatively time-consuming arduously.
Fig. 3 is the structural representation of radially clutch in existing radiotherapy apparatus.As it is shown on figure 3, radially clutch herein
Structure 300 uses two little gears 310,320 to realize clutch by lever principle.It is disadvantageously, two
The distance of little gear 310, the 320 distance lever point of rotation 330 is different so that two little gears 310,320
Move distance in engagement process is different, thus causes the centre-to-centre spacing of two little gears 310,320 not protect
Card is unified, and this transmission accuracy resulting in two little gears 310,320 may be different.
As can be seen here, the increase used in prior art is manually entered mode and radial direction clutch is the most each defective, nothing
Method meets the requirement in radiotherapy apparatus to treatment head increasingly stringent.
Summary of the invention
The technical problem to be solved in the present invention is to provide to be easy to the treatment head of clinac and carries out frequent maintenance
With the structure of maintenance, the high accuracy of therapeutic equipment to be ensured and high security.
For solving above-mentioned technical problem, the invention provides a kind of gear clutch, be installed on a pedestal, it is special
Point is, described gear clutch includes: driven gear, is rotatably secured on described pedestal；
Guide, is fixed on described pedestal；
Installing plate, it is slidingly supported by described guide；
Drive gear, be rotatably fixed on described installing plate；
Pushing component, is used for promoting described installing plate to slide along described guide, when described pushing component promotes institute
State installing plate slide near described driven gear time, described driving gear near described driven gear until mutually nibbling
Close；When described pushing component promote described installing plate slide away from described driven gear time, described driving gear away from
Described driven gear is until being separated from each other.
It is preferred that described pushing component includes: positive stop and backstop, it is fixed on described installing plate in parallel to each other
On；
Cam, is rotatably secured on described pedestal, and is arranged between described positive stop and described backstop,
In order to apply thrust to described positive stop and described backstop.
It is preferred that described cam includes protruding end, it is used for promoting described positive stop and described backstop, described protrusion
End is Ra to the distance of the center of rotation of described cam, and the distance between described positive stop and described rear block is s,
And Ra≤s < 2Ra.
It is preferred that described protruding end is arc-shaped, and the center of rotation that the center of circle of described protruding end is described cam.
It is preferred that described cam also includes that the other end, described end are oppositely arranged with described protruding end, described end
Portion is Rb to the distance of the center of rotation of described cam, and Ra+Rb≤s < 2Ra.
It is preferred that the stroke of described cam is H, and H=2Ra-s, the stroke H of described cam are more than before described
Block or described rear block drive described installing plate to need the minimum range of motion, so that described driving gear and described
Driven gear clutch.
It is preferred that the center of rotation of described driving gear, described driven gear and described cam is located on a straight line.
It is preferred that described gear clutch also includes detecting gear, described detection gear is arranged on described installing plate
On, and between described pushing component and described driven gear.
It is preferred that the center of rotation of described driving gear and described detection gear be symmetrically distributed in described driven gear and
The straight line both sides at the center of rotation place of described cam.
It is preferred that described guide includes that guide rail sliding chute, described guide rail sliding chute are fixed on described pedestal, described peace
The two ends of dress plate are slidably installed in corresponding described guide rail sliding chute.
It is preferred that described gear clutch also includes guide rail slide block or guide rail sliding chute, described guide is for join therewith
The guide rail sliding chute or guide rail slide block, described guide rail sliding chute or the described guide rail slide block that close are fixed on described pedestal, corresponding
Described guide rail slide block or described guide rail sliding chute be fixed on the two ends of described installing plate, described guide rail sliding chute and described lead
Rail slide block cooperates slip.
Present invention also offers a kind of radiotherapy apparatus, including treatment head and driving means, its feature is, described in put
Treatment equipment also includes gear clutch as above, described treatment head by described in described gear clutch from
Moving gear driveably connects, and the described driving gear of described driving means and described gear clutch is driveably
Connect.
Compared with prior art, the invention have the advantages that gear clutch of the present invention have employed the convex of uniqueness
Wheel mechanism so that gear can conveniently realize clutch in radial directions.And it is all right by this cam mechanism
Control the centre-to-centre spacing of gear engagement, reach to adjust the purpose of gear-driven accuracy.Meanwhile, by adjusting the wheel of cam
Exterior feature, can form bigger dead angle, it is achieved good locking function.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing clinac.
Fig. 2 is the existing clinac schematic diagram in the structure driving input increase to be manually entered.
Fig. 3 is the structural representation of radially clutch in existing radiotherapy apparatus.
Fig. 4 is the axonometric chart of the embodiment one of gear clutch of the present invention.
Fig. 5 be gear clutch of the present invention embodiment one in drive gear and detection gear layout schematic diagram.
Fig. 6 is view during embodiment one cam top backstop of gear clutch of the present invention.
Fig. 7 is embodiment one cam of gear clutch of the present invention view when starting to push up positive stop.
Fig. 8 is embodiment one cam of gear clutch of the present invention view when holding out against positive stop.
Fig. 9 is the structural representation of embodiment one cam of gear clutch of the present invention.
Figure 10 is the structural representation of the embodiment two of gear clutch of the present invention.
Figure 11 is the respective outer side edges schematic diagram one of radiotherapy apparatus middle gear clutch of the present invention and treatment head.
Figure 12 is the respective outer side edges schematic diagram two of radiotherapy apparatus middle gear clutch of the present invention and treatment head.
Detailed description of the invention
For the above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing to this
Bright detailed description of the invention elaborates.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but the present invention
Other can also be used to be different from alternate manner described here implement, therefore the present invention is not by described below
The restriction of specific embodiment.
Embodiment one
Fig. 4 is the axonometric chart of the embodiment one of gear clutch of the present invention.
As shown in Figure 4, gear clutch 400 of the present invention is installed on (not shown) on a pedestal, gear from
Close mechanism 400 include driven gear 410, guide 420, installing plate 430, pushing component 440 and drive tooth
Wheel 450.Wherein, driven gear 410 is fixed on described pedestal, and can rotate on described pedestal.Guide
Part 420 is also secured on described pedestal equally.Installing plate 430 is arranged on above described pedestal by guide 420,
Installing plate 430 is slidingly supported by guide 420, and such as installing plate 430 can be at pushing component 440
Thrust under near or away from driven gear 410.Pushing component 440 be mainly used in promote installing plate 430 along
Guide 420 slides.Installing plate 430 is provided with rotating driving gear 450 so that drive gear 450
Between pushing component 440 and driven gear 410.
Fig. 5 be gear clutch of the present invention embodiment one in drive gear and detection gear layout schematic diagram.
As it is shown in figure 5, in the present embodiment, gear clutch 400 also includes detecting gear 460.Herein,
Detection gear 460 is similarly disposed on installing plate 430, and between pushing component 440 and driven gear 410.
In the present embodiment, detection gear 460 and driving gear 450 are respectively distributed to the both sides of pushing component 440.
Preferably, by symmetrical for the center of rotation a of driving the gear 450 and center of rotation b of detection gear 460
Straight line both sides at the center of rotation place of driven gear 410 and cam 443.Pushing component 440 includes positive stop
441, backstop 442 and cam 443, wherein, positive stop 441 and backstop 442 are fixed in parallel to each other
On installing plate 430.Cam 443 is rotatably secured on described pedestal, and be arranged on positive stop 441 and after
Between block 442, in order to apply thrust to positive stop 441 or backstop 442.Acting predominantly on of cam 443
In promotion positive stop 441 to realize the engagement of gear, and promote backstop 442 to realize the separation of gear.This
Sample, when rotating cam 443, installing plate 430 along arrow AB direction closer or far from driven gear 410, from
And drive driving gear 450 and detection gear 460 simultaneously closer or far from driven gear 410 so that drive gear
450 are capable of the synchro-meshing with driven gear 410 with detection gear 460 and separate.
Fig. 6 is view during embodiment one cam top backstop of gear clutch of the present invention.Fig. 7
It it is embodiment one cam of gear clutch of the present invention view when starting to push up positive stop.Fig. 8 is this
Embodiment one cam of invention gear clutch holds out against view during positive stop.
As shown in figs 6-8, the present invention is come by the cooperation of guide 420, installing plate 430 and pushing component 440
Realize the clutch driving gear 450, detection gear 460 with driven gear 410.It is to say, work as pushing component
440 promote installing plate 430 to slide when driven gear 410, drive gear 450 and detection gear 460 close
Driven gear 410 is until they engage each other.When pushing component 440 promotes installing plate 430 to slide away from driven tooth
When taking turns 410, drive gear 450 away from driven gear 410 until they are separated from each other.
Wherein, cam 443 is fixed to the mode of described pedestal to be had multiple, such as, cam 443 is arranged on peace
The upper surface of dress plate 430, is fixed to described pedestal, i.e. one end of rotary shaft 444 through peace by rotary shaft 444
Dress plate 430 is fixed to described pedestal.Or, it is also possible to preferably cam 443 is arranged on installing plate 430 and institute
State between pedestal, be fixed to described pedestal by rotary shaft.One end of described rotary shaft in this case passes
Installing plate 430, the other end is fixed to described pedestal, only need to rotate any one end of described rotary shaft so that cam
443 rotate.Certainly the set-up mode of pushing component 440 has various ways, does not enumerates,
The form of other changes can play promotion positive stop 441 and the effect of backstop 442 equally, and the present invention is not lifted
The restriction of example.
Preferably, the guide 420 in the present embodiment includes guide rail sliding chute 421, is fixed on by guide rail sliding chute 421
On described pedestal, can be directly slidably installed in corresponding guide rail sliding chute 421 by the two ends of installing plate 430, it is achieved
Installing plate 430 slides above at described pedestal, near or away from driven gear 410.
In order to match with above-mentioned guide rail sliding chute 421, as shown in Figure 4, can be respectively provided with in the both sides of installing plate
There is guide rail slide block 422.It will be understood by those skilled in the art that guide rail sliding chute 421 and guide rail slide block 422 wherein it
One can be fixed on described pedestal, and corresponding guide rail slide block 422 or guide rail sliding chute 421 can be fixed on installation
The both sides of plate 430, so, guide rail sliding chute 421 and guide rail slide block 422 cooperate slip.This structure is permissible
Installing plate 430 is performed more smoothly slide above at described pedestal, near or away from driven gear 410.This
Skilled person it is also understood that, it is also possible to arranges other guides on pedestal, such as has given shape
Projection, correspondingly, can arrange the groove of correspondingly-shaped on a mounting board, the most adaptive, it is also possible to
Reach the purpose of the present invention.
Certainly the set-up mode of guide 420 has various ways, does not enumerates, other changes
Form is capable of the effect that installing plate 430 slides above at described pedestal equally, and the present invention is illustrated the most herein
Limit.
Fig. 9 is the structural representation of embodiment one cam of gear clutch of the present invention.
As it is shown in figure 9, cam 443 includes protruding end 4431, it is mainly used in promoting positive stop 441 and backstop
442.Set the distance of center of rotation O of protruding end 4431 to cam 443 as Ra, positive stop 441 and rear shelves
Distance between block 442 is s, then need to meet between protruding end 4431, positive stop 441 and backstop 442:
Ra≤s<2Ra.Preferably, protruding end 4431 is in arc-shaped, and using the center of circle of protruding end 4431 as cam
The center of rotation O of 443.This structure makes rotation more the smooth of cam 443.
It is further preferred that cam 443 also includes the other end 4432.End 4432 and protruding end 4431
It is oppositely disposed.Set the distance of center of rotation O of end 4432 to cam 443 as Rb, then protruding end 4431,
Need to meet between end 4432, positive stop 441 and backstop 442: Ra+Rb≤s < 2Ra.It is to say,
Spacing s of positive stop 441 and backstop 442 is greater than the size equal to cam, i.e. s >=Ra+Rb；In order to
Make cam 443 can promote positive stop 441 and backstop 442, then between positive stop 441 and backstop 442
Distance s needs the maximum taking in 2Ra and 2Rb, when setting Ra>Rb, i.e. and s<2Ra.
Specifically, first calculate between gear during being engaged to separate, positive stop 441 and backstop
442 minimum ranges S1 needing motion.Calculating according to master gear, the number of teeth of driven gear 410 is Z1, drives
The number of teeth of moving gear 450 and detection gear 460 is Z2, and module is m, drives gear 450 and detection tooth
The centre-to-centre spacing of wheel 460 is a2.Driving gear 450 and a height of h of gear teeth tips of detection gear 460, gear separates
Minimum range along gear centre line is 2h.
Therefore, positive stop 441 needs the minimum range (minimum row that i.e. gear separates of motion with backstop 442
Journey) be:
Especially, it is contemplated that gear engages when, the power of meshed transmission gear is understood some and is passed to front
Block 441.In order to realize the self-locking of cam 443 so that it is do not affected by positive stop 441 pressure, then positive stop 441
Must be just by the axis of rotation O of cam 443 to the thrust of cam 443, such cam would not be subject to
Rotate voluntarily the when of positive stop 441 pressure.
In order to realize above-mentioned self-locking, as it is shown in figure 9, the center of circle of circular arc C D must be in the rotation of cam 443
At heart O, i.e. circular arc C D is the circular arc with the center of rotation of cam as the center of circle.Circular arc C E and circular arc DF are
Transition arc so that whole 4431 can rotate more swimmingly.So compress positive stop 441 when circular arc C D
When, circular arc C D is tangent with positive stop 441, and thrust the most now just can be by the rotation of cam 443
Center O.The length of circular arc C D can determine according to the actual requirements.After circular arc C D holds out against positive stop 441,
Circular arc C D contact with positive stop 441 whole during, positive stop 441 does not has relative motion, circular arc
The length representative of the CD serious forgiveness of cam 443 self-locking.It is to say, circular arc C D length, then cam 443 is certainly
The serious forgiveness of lock is big, and circular arc C D is short, then the serious forgiveness of cam 443 self-locking is little.
According to the derivation of above-mentioned condition, set the stroke of cam 443 as H, then H=2Ra-s, the row of described cam
What journey H represented is positive stop 441 and the stroke that backstop 442 is promoted by cam 443.Described stroke H is more than
Positive stop 441 or rear plate washer 442 drive installing plate 430 to need the minimum range of motion, so that driving gear 450,
Detection gear 460 and driven gear 410 clutch, i.e. H=2Ra-s > S1.It is to say, positive stop 441 and after
Block 442 needs the minimum range S1 < 2Ra-s of motion.
During as it has been described above, special distance s between positive stop 441 and backstop 442 is equal to Ra+Rb, convex
The stroke H=Ra-Rb of wheel 443.
According to said structure, as Figure 6-Figure 8, the motion mode of gear clutch of the present invention is as follows: convex
Wheel 443 rotation, by withstanding positive stop 441 or backstop 442 so that installing plate 430 is by guide rail slide block 422
Slide in guide rail sliding chute 421 so that installing plate 430 near or away from driven gear 410.So may be used
So that driving gear 450 and detection gear 460 to be adjusted with driven gear 410 centre-to-centre spacing, it is achieved clutch merit
Energy.When cam 443 holds out against positive stop 441, drive gear 450, detection gear 460 and driven gear 410
Centre-to-centre spacing minimizes, it is achieved drive gear 450, detection gear 460 the most at a fully engaged with driven gear 410.
Now the gap between gear is minimum, and transmission accuracy is the highest.When cam 443 holds out against backstop 442, drive
Gear 450, detection gear 460 reach maximum with driven gear 410 centre-to-centre spacing, it is achieved drive gear 450, inspection
Survey gear 460 to be completely separated from each other with driven gear 410.
Embodiment two
Figure 10 is the structural representation of the embodiment two of gear clutch of the present invention.
As shown in Figure 10, the structure of the present embodiment is essentially identical with embodiment one, and its difference is: gear
Clutch 500 includes driven gear 510, installing plate 520, drives gear 530 (not including detecting gear)
And pushing component.Described pushing component includes positive stop 540, backstop 550 and being arranged on installing plate 520
Cam 560.Preferably, the center of rotation driving gear 530, driven gear 510 and cam 560 is positioned at one
On straight line.
Figure 11 is the respective outer side edges schematic diagram one of radiotherapy apparatus middle gear clutch of the present invention and treatment head.Figure 12
It it is the respective outer side edges schematic diagram two of radiotherapy apparatus middle gear clutch of the present invention and treatment head.
As is illustrated by figs. 11 and 12, radiotherapy apparatus 600 of the present invention includes treatment 610 and driving means,
Radiotherapy apparatus 600 also includes such as gear clutch 400.Treatment 610 and gear clutch 400 from
Moving gear 410 driveably connects, and the driving gear of described driving means and gear clutch 400 is driveably
Connect.
Herein, gear clutch 400 is for RT treatment 610, to drive the rotation for the treatment of 610.Put
Treatment equipment 600 also includes pedestal 640, motor and turbine reduction box 630, treated arms 620 and encoder 650.
Its operation principle is: motor and worm speed reducer 630 drive gear, drives driven gear 410 to rotate with this.From
Moving gear 410 and treatment 610 driveably connect, so that treatment 610 can follow driven gear 410
Rotate together with.Here turbine reduction box 630 uses self-locking pattern, so treatment 610 cannot rotate from outside.
Guide rail sliding chute 421 is fixed on pedestal 640.Driven gear 410 is fixed on the gyroaxis on pedestal 640
Holding, treatment 610 is driveably connected on driven gear 410 such that it is able to follow driven gear 410
Rotate together.The driving gear of gear clutch 400 is driveably connected with motor and worm speed reducer 630,
Motor and worm speed reducer 630 can drive driving gear to rotate, and drive the rotation of gear can drive driven gear
410 rotate together.It is connected it addition, the detection gear of gear clutch 400 is fixing with encoder 650, driven
Gear 410 rotation can drive described detection gear to rotate together, thus drives encoder 650 to rotate, with this to from
The angle that moving gear 410 rotates detects.
In sum, gear clutch of the present invention is by using unique cam mechanism so that gear is radially
Clutch can be conveniently realized on direction.And the centre-to-centre spacing of gear engagement can also be controlled by this cam mechanism,
Reach to adjust the purpose of gear-driven accuracy.Meanwhile, by adjusting the profile of cam, can be formed bigger dead
Angle, it is achieved good locking function.The radiotherapy apparatus using gear clutch of the present invention can preferably improve to be controlled
The high accuracy treated and safety requirements, its use is convenient, is suitable for safeguarding continually and keeping in repair.
Although the present invention describes with reference to current specific embodiment, but common skill in the art
Art personnel are it should be appreciated that above embodiment is intended merely to the present invention is described, without departing from present invention essence
Change or the replacement of various equivalence also can be made, therefore, as long as at the connotation of the present invention in the case of god
In the range of change, the modification of above-described embodiment all will be fallen in the range of following claims.
Claims (12)
1. a gear clutch, is installed on a pedestal, it is characterised in that described gear clutch includes:
Driven gear, is rotatably secured on described pedestal；
Guide, is fixed on described pedestal；
Installing plate, it is slidingly supported by described guide；
Drive gear, be rotatably fixed on described installing plate；
Pushing component, is used for promoting described installing plate to slide along described guide, when described pushing component promotes institute
State installing plate slide near described driven gear time, described driving gear near described driven gear until mutually nibbling
Close；When described pushing component promote described installing plate slide away from described driven gear time, described driving gear away from
Described driven gear is until being separated from each other.
Gear clutch the most according to claim 1, it is characterised in that described pushing component includes:
Positive stop and backstop, be fixed on described installing plate in parallel to each other；
Cam, is rotatably secured on described pedestal, and is arranged between described positive stop and described backstop,
In order to apply thrust to described positive stop and described backstop.
Gear clutch the most according to claim 2, it is characterised in that described cam includes protruding end,
For promoting described positive stop and described backstop, the distance of the center of rotation of described protruding end to described cam is
Ra, the distance between described positive stop and described rear block is s, and Ra≤s < 2Ra.
Gear clutch the most according to claim 3, it is characterised in that described protruding end is arc-shaped,
And the center of rotation that the center of circle is described cam of described protruding end.
5. gear clutch as claimed in claim 3, it is characterised in that described cam also includes the other end
Portion, described end is oppositely arranged with described protruding end, and the distance of the center of rotation of described end to described cam is
Rb, and Ra+Rb≤s < 2Ra.
Gear clutch the most according to claim 5, it is characterised in that the stroke of described cam is H,
And H=2Ra-s, the stroke H of described cam drive described installing plate to need more than described positive stop or described rear block
Minimum range to be moved, so that described driving gear and described driven gear clutch.
Gear clutch the most according to claim 2, it is characterised in that described driving gear, described
The center of rotation of driven gear and described cam is located on a straight line.
Gear clutch the most according to claim 1, it is characterised in that described gear clutch is also
Including detection gear, described detection gear is arranged on described installing plate, and be positioned at described pushing component and described from
Between moving gear.
9. according to gear clutch as claimed in claim 8, it is characterised in that described driving gear and institute
The center of rotation stating detection gear is symmetrically distributed in center of rotation place straight of described driven gear and described cam
Line both sides.
Gear clutch the most according to claim 1, it is characterised in that described guide includes guide rail
Chute, described guide rail sliding chute is fixed on described pedestal, and the two ends of described installing plate are slidably installed in corresponding described guide rail
In chute.
11. gear clutches according to claim 1, it is characterised in that described gear clutch is also
Including guide rail slide block or guide rail sliding chute, described guide is matched guide rail sliding chute or guide rail slide block, described in lead
Rail chute or described guide rail slide block are fixed on described pedestal, and corresponding described guide rail slide block or described guide rail sliding chute are solid
It is scheduled on the two ends of described installing plate, described guide rail sliding chute and described guide rail slide block to cooperate slip.
12. 1 kinds of radiotherapy apparatus, including treatment head and driving means, it is characterised in that described radiotherapy apparatus also wraps
Including the gear clutch as described in claim 1-11 any one, described treatment head is by described gear clutch
The described driven gear of structure driveably connects, described driving means and the described driving tooth of described gear clutch
Wheel driveably connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510058207.9A CN105987091B (en) | 2015-02-04 | 2015-02-04 | Gear clutch and radiotherapy apparatus including it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510058207.9A CN105987091B (en) | 2015-02-04 | 2015-02-04 | Gear clutch and radiotherapy apparatus including it |
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| Publication Number | Publication Date |
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| CN105987091A true CN105987091A (en) | 2016-10-05 |
| CN105987091B CN105987091B (en) | 2018-09-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107966928A (en) * | 2017-11-21 | 2018-04-27 | 上海联影医疗科技有限公司 | Back clearance error compensating method, device, system, computer equipment and radiotherapy equipment |
| WO2021254312A1 (en) * | 2020-06-16 | 2021-12-23 | 维沃移动通信有限公司 | Driving mechanism, function module assembly, and electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966928A (en) * | 2017-11-21 | 2018-04-27 | 上海联影医疗科技有限公司 | Back clearance error compensating method, device, system, computer equipment and radiotherapy equipment |
| WO2021254312A1 (en) * | 2020-06-16 | 2021-12-23 | 维沃移动通信有限公司 | Driving mechanism, function module assembly, and electronic device |
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| Publication number | Publication date |
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| CN105987091B (en) | 2018-09-21 |
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Address after: 201807 2258 Chengbei Road, Jiading District, Shanghai Patentee after: Shanghai Lianying Medical Technology Co., Ltd Address before: 201807 2258 Chengbei Road, Jiading District, Shanghai Patentee before: SHANGHAI UNITED IMAGING HEALTHCARE Co.,Ltd. |