CN209302042U - A kind of Medical electronic linear accelerator rack - Google Patents

Abstract

The utility model discloses a kind of Medical electronic linear accelerator rack, the bearing I being overlapped including collimator, rotary shaft I, headstock, two axle center, bearing block I, rotary shaft II, bearing block II, II linear moving mechanism of bearing block, balance weight mechanism, balance weight mechanism linear moving mechanism, head are with vertical line reverse linkage mechanism, mounting platform, convolution system, convolution system mounting base, convolution system mounting base linear moving mechanism, pedestal and radiographic source.This rack can drive the movement of radiographic source by the movement of headstock, to change Source Axis Distance, it is adjustable to realize Source Axis Distance, controllable convolution system mounting base mobile direction and amplitude, the axial line of the first rotary shaft is set the centers such as to pass through always, no matter how Source Axis Distance changes, and how irradiating angle changes, it all can guarantee that the axle center of beam passes through tumour target center always, realizes the noncoplanar irradiation in the motionless situation of therapeutic bed in therapeutic process.

Description

A kind of Medical electronic linear accelerator rack

Technical field

The utility model relates to medical electronic apparatus technical field more particularly to a kind of medical computerized linear accelerator machines Frame.

Background technique

Meet the needs of head tumor is to intensity modulated radiation therapy precision for emphasis, it is desirable to radiographic source to radiographic source rotation center away from , in this way can be by the treatment space controlled needed for the oncotherapy of head from adjustable, collimator system needed for determining head tumor intensity modulated radiation therapy Relevant parameter, extracranial tumors can optionally increase Source Axis Distance when treating, collimator is driven to raise, and it is empty to treatment to meet extracranial tumors Between demand.In addition, due to the particularity on head, head tumor implementable noncoplanar irradiation when treating, a kind of method is therapeutic bed Cooperate the movement of accelerator rack, it is common to realize；Another method is that therapeutic bed is motionless, is realized completely by the movement of rack. Can realize Source Axis Distance simultaneously can reconcile the motionless noncoplanar irradiation of therapeutic bed, be the project in the industry in exploration.

Utility model content

The purpose of this utility model is to provide a kind of Medical electronic linear accelerator rack, it is adjustable to have a Source Axis Distance, non- The characteristics of coplanar irradiation, solves the problems of the prior art.

To achieve the above object, the utility model provides the following technical solutions: a kind of Medical electronic linear accelerator rack, Bearing I, the bearing block I, rotary shaft II, bearing block II, bearing being overlapped including collimator, rotary shaft I, headstock, two axle center II linear moving mechanism of seat, balance weight mechanism, balance weight mechanism linear moving mechanism, head are with vertical line reverse linkage mechanism, installation Platform, convolution system, convolution system mounting base, convolution system mounting base linear moving mechanism, pedestal and radiographic source, the collimation Device is connected with rotary shaft I, and the rotary shaft I is connected with headstock, and the bearing I that the headstock is overlapped with two axle center is connected, The bearing I that described two axle center are overlapped is connected with bearing block I, and the bearing block I is connected with rotary shaft II, the rotary shaft II and Bearing block II is connected, and the bearing block II is connected with II linear moving mechanism of bearing block, II linear moving mechanism of bearing block It is mounted on mounting platform, the balance weight mechanism is connected with balance weight mechanism linear moving mechanism, the balance weight mechanism linear movement Mechanism is mounted on mounting platform, the head with vertical line reverse linkage mechanism respectively with bearing block II and balance weight mechanism phase Even, the head is installed on mounting platform side, the mounting platform lower end and convolution system with vertical line reverse linkage mechanism It is connected, the convolution system is installed on convolution system mounting base upper end, the convolution system mounting base and convolution system mounting base Linear moving mechanism is connected, and the convolution system mounting base linear moving mechanism is installed on pedestal upper end, the axis of the rotary shaft I Heart line is vertical with two axle center axial line for being overlapped bearing I and intersection is overlapped with radiographic source, and described two axle center are overlapped bearing I Axial line with convolution system shaft center line it is vertical, the axial line of the rotary shaft II is overlapped the axis of bearing I with two axle center Heart line is vertical and intersection is overlapped with radiographic source, and the axial line of the rotary shaft II is parallel with convolution system shaft center line, institute It is parallel with the moving direction of balance weight mechanism linear moving mechanism to state II linear moving mechanism of bearing block, II straight line of bearing block moves The moving direction of motivation structure and balance weight mechanism linear moving mechanism () is vertical with convolution system shaft center line, the convolution system Shaft center line of uniting is parallel with the convolution moving direction of system mounting base linear moving mechanism, the rotating part of the convolution system Convolution system shaft center line is coincided with along the projection that convolution system shaft center line direction is formed with mounting platform () mutually to hang down Focus point and convolution system shaft center line in straight plane, the axial line and convolution system shaft center line of the rotary shaft I Intersection point when vertical and intersection is equal centers, and under the driving of each self actuating system, the convolution system mounting base can be along convolution The moving direction of system mounting base linear moving mechanism moves linearly, and the rotating part of the convolution system can circle round system rotation Turn axial line as axle center rotation.

Preferably, the balance weight mechanism, including bearing II and counter-balanced carriage that III, two axle center of bearing block is overlapped, counter-balanced carriage The bearing II being overlapped with two axle center is connected, and the bearing II that two axle center are overlapped is connected with bearing block III, bearing block III and counterweight Mechanism linear moving mechanism is connected, and the axial line that the axial line that two axle center are overlapped bearing II is overlapped bearing I with two axle center is flat Row.

Preferably, the balance weight mechanism includes main counter-balanced carriage, auxiliary counter-balanced carriage linear moving mechanism and auxiliary counter-balanced carriage, wherein Auxiliary counter-balanced carriage is connected with auxiliary counter-balanced carriage linear moving mechanism, and auxiliary counter-balanced carriage linear moving mechanism is connected with main counter-balanced carriage, main counterweight Frame is connected with balance weight mechanism linear moving mechanism, and the moving direction and balance weight mechanism of auxiliary counter-balanced carriage linear moving mechanism move linearly The moving direction of mechanism is parallel.

Preferably, the bearing block II and balance weight mechanism reverse movement, bearing block II and headstock are because of two axis when mobile The bearing I that the heart is overlapped is rotated and is swung.

Preferably, the head matches vertical line reverse linkage mechanism, including two secondary screw mechanisms, secondary first synchronous pulley With two secondary second synchronous pulleys, two secondary screw mechanisms include first nut, first lead screw shaft and two the first lead screws Support, secondary first synchronous pulley include two first pulleys and first belt, and two secondary second synchronous pulleys include four Second belt wheel and second belt, wherein two the first nuts are connected with bearing block II and fixed, two the first nut difference It covering in two first lead screw shaft, every first lead screw shaft is coupled with two the first leading screw bearings respectively, and four first Thick stick support is mounted on mounting platform, and two first pulleys are coupled with two first lead screw shaft respectively, and the first belt sleeve exists In two first pulleys, two secondary every secondary four the second belt wheels are mounted on mounting platform, and two the second belts are respectively fitted over four The second belt outside and axis on second belt wheel, on the second belt of four the second belt wheels support, between two the second belt wheels It holds seat II to be connected, be connected on the outside of the second belt between other two second belt wheel with balance weight mechanism.

Preferably, the head match vertical line reverse linkage mechanism, including left and right screw thread ball screw framework and third it is same Walk belt wheel, every pair left and right screw thread ball screw framework includes two the second nuts, one or so the second lead screw shaft of line and two the Two leading screw bearings, a secondary third synchronous pulley includes two third belt wheels and a third belt, wherein every second lead screw shaft It is coupled respectively with two second screw bearing seats, four second screw bearing seats connect and fix with mounting platform, two thirds Belt wheel is coupled respectively at two second lead screw shaft.

Preferably, the left and right screw thread ball screw framework is equipped with threaded sections, and threaded sections include threaded area in the same direction Section and reverse thread section, the second nut are cased with threaded sections, four the second nuts of left and right screw thread ball screw framework respectively In, the second nut of two threaded sections in the same direction is connected with bearing block II, and two second of other two opposite direction threaded sections Nut is connected with balance weight mechanism.

Compared with prior art, the beneficial effects of the utility model are as follows:

1, it is reversed with vertical line not limit balance weight mechanism, head for the Medical electronic linear accelerator rack of the utility model Interlinked mechanism, mounting platform, convolution system, circle round system rotating part and circle round system mounting base pattern, balance weight mechanism The mounting platform of different patterns and the pattern of convolution system can be answered with vertical line reverse linkage mechanism with head, it is adaptable, lead to The movement of headstock can be driven by crossing second bearing seat movement, and the movement of headstock can drive the movement of radiographic source, to change It is adjustable to realize Source Axis Distance to the distance for system shaft center line of circling round for Source Axis Distance, i.e. radiographic source.

2, the Medical electronic linear accelerator rack of the utility model, after second bearing seat is mobile and headstock is swung, The mobile direction of controllable convolution system mounting base and amplitude make the axial line of the first rotary shaft the centers such as pass through always, practical When treatment, tumour target center to be allowed to be overlapped with equal centers, after tumour target center is overlapped with the centers of grade, no matter how Source Axis Distance changes, and shines How firing angle degree changes, and all can guarantee that the axle center of beam passes through tumour target center always, the position without changing human body is held The therapeutic bed for carrying patient need not move again, realize the noncoplanar irradiation in the motionless situation of therapeutic bed in therapeutic process.

Detailed description of the invention

Fig. 1 is the overall structure figure of the utility model；

Fig. 2 is the top view of the utility model；

Fig. 3 is the left view of the utility model；

Fig. 4 is the perspective view of the utility model；

Fig. 5 is the operating status figure of the utility model；

Fig. 6 is the right view of the utility model；

Fig. 7 is the perspective view of the utility model；

Fig. 8 is the head of the utility model with vertical line reverse linkage mechanism structure figure；

Fig. 9 is the head of the utility model with vertical line reverse linkage mechanism perspective view.

In figure: 1, collimator；2, rotary shaft I；21, the axial line of rotary shaft I；211, the centers such as；3, headstock；4, two The bearing I that axle center is overlapped；41, two axle center are overlapped the axial line of bearing I；5, bearing block I；6, rotary shaft II；61, rotary shaft II Axial line；7, bearing block II；8, II linear moving mechanism of bearing block；9, balance weight mechanism；911, bearing block III；912, two axis The bearing II that the heart is overlapped；9121, two axle center are overlapped the axial line of bearing II；913, counter-balanced carriage；921, main counter-balanced carriage；922, auxiliary Counter-balanced carriage linear moving mechanism；923, auxiliary counter-balanced carriage；10, balance weight mechanism linear moving mechanism；11, head reversely connects with vertical line Motivation structure；1111, screw mechanism；11111, the first nut；11112, the first lead screw shaft；11113, the first leading screw bearing；1112, First synchronous pulley；11121, first pulley；11122, the first belt；1113, the second synchronous pulley；11131, the second belt wheel； 11132, the second belt；1121, left and right screw thread ball screw framework；11211, the second nut；11212, the second lead screw shaft； 11213, second screw bearing seat；1122, third synchronous pulley；11221, third belt wheel；11222, third belt；12, installation is flat Platform；13, convolution system；131, convolution system shaft center line；132, the rotating part for system of circling round；14, convolution system installation Seat；15, circle round system mounting base linear moving mechanism；16, pedestal；17, radiographic source.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Please refer to Fig. 1-3, a kind of Medical electronic linear accelerator rack, including collimator 1, rotary shaft I 2, headstock 3, Bearing I 4, the bearing block I 5, rotary shaft II 6, bearing block II 7, II linear moving mechanism 8 of bearing block, counterweight of two axle center coincidence Mechanism 9, balance weight mechanism linear moving mechanism 10, head are with vertical line reverse linkage mechanism 11, mounting platform 12, convolution system 13, circle round system mounting base 14, convolution system mounting base linear moving mechanism 15, pedestal 16 and radiographic source 17, the collimator 1 It is connected with rotary shaft I 2, the rotary shaft I 2 is connected with headstock 3, I 4 phase of bearing that the headstock 3 is overlapped with two axle center Even, the bearing I 4 that described two axle center are overlapped is connected with bearing block I 5, and the bearing block I 5 is connected with rotary shaft II 6, and described time Spin axis II 6 is connected with bearing block II 7, and the bearing block II 7 is connected with II linear moving mechanism 8 of bearing block, the bearing block II Linear moving mechanism 8 is mounted on mounting platform 12, and the balance weight mechanism 9 is connected with balance weight mechanism linear moving mechanism 10, institute It states balance weight mechanism linear moving mechanism 10 to be mounted on mounting platform 12, the head is distinguished with vertical line reverse linkage mechanism 11 It is connected with bearing block II 7 and balance weight mechanism 9, the head is installed on mounting platform 12 1 with vertical line reverse linkage mechanism 11 Side, 12 lower end of mounting platform are connected with convolution system 13, and the convolution system 13 is installed in convolution system mounting base 14 End, the convolution system mounting base 14 are connected with convolution system mounting base linear moving mechanism 15, the convolution system mounting base Linear moving mechanism 15 is installed on 16 upper end of pedestal.

Referring to Fig. 4, the axial line 21 of rotary shaft I is vertical with two axle center axial line 41 for being overlapped bearing I and intersection It is overlapped with radiographic source 17, the axial line 41 that described two axle center are overlapped bearing I is vertical with convolution system shaft center line 131, institute The axial line 61 for stating rotary shaft II is vertical with two axle center axial line 41 for being overlapped bearing I and intersection is overlapped with radiographic source 17, The axial line 61 of the rotary shaft II is parallel with convolution system shaft center line 131, II linear moving mechanism of bearing block, 8 He The moving direction of balance weight mechanism linear moving mechanism 10 is parallel, II linear moving mechanism 8 of bearing block and balance weight mechanism straight line The moving direction of mobile mechanism (10) and convolution system shaft center line 131 are vertical, the convolution system shaft center line 131 and The moving direction of convolution system mounting base linear moving mechanism 15 is parallel, and the rotating part 132 of the convolution system and installation are flat Platform (12) coincides with 131 phase of convolution system shaft center line along the projection that convolution 131 direction of system shaft center line is formed and hangs down Focus point and convolution system shaft center line 131 in straight plane, the axial line 21 and convolution system rotary shaft of the rotary shaft I Heart line 131 is vertical and intersection point when intersecting is to wait centers 211.

Fig. 5-7 is please referred to, under the driving of each self actuating system, the convolution system mounting base 14 can be along convolution system peace Fill seat linear moving mechanism 15 moving direction linear movement, the rotating part 132 of the convolution system can circle round system rotation Turn axial line 131 as axle center rotation, the head can control bearing block II 7 and balance weight mechanism with vertical line reverse linkage mechanism 11 9 reverse linears are mobile, and the controllable headstock 3 of rotary shaft II 6 is axle center rotation, two axle center weights with the axial line 61 of rotary shaft II The controllable headstock 3 of bearing I 4 of conjunction is axis swing with the axial line 41 that two axle center are overlapped bearing I, and rotary shaft I 2 is controllable The operative orientation of collimator 1, wherein convolution system mounting base 14 is straight along convolution 15 direction of system mounting base linear moving mechanism Line is mobile, and the rotating part 132 for system of circling round is straight for the rotation in axle center and in head counterweight with system shaft center line 131 of circling round The combinative movement of the linear movement of bearing block II 7 under the control of line reverse linkage mechanism 11 can determine radiographic source 17 in the position in space It sets, the swing that the bearing I 4 that rotary shaft II 6 controls the rotation of headstock 3 and two axle center are overlapped controls headstock 3 determines convolution The direction of the axial line 21 of axis I, in the axis that bearing block II 7 and the reverse movement of balance weight mechanism 9 and headstock 3 are overlapped by two axle center When holding I 4 rotations and swinging, it can control the internal structure of balance weight mechanism (9), keep the rotating part 132 of convolution system and installation flat What platform 12 and the component being mounted on mounting platform 12 were collectively formed is incident upon perpendicular flat with convolution system shaft center line 131 Focus point on face is still overlapped with the convolution holding of system shaft center line 131, in the bearing that headstock 3 is overlapped by two axle center I 4 rotate and the direction that can control convolution system mounting base 14 mobile after swing and amplitude, pass through the axial line 21 of rotary shaft I Equal centers 211.

In Fig. 5, left side is original state, and right side is the state after variation, demonstration, and II 7 movement of bearing block can drive The movement of the movement of headstock 3, headstock 3 can drive the movement of radiographic source 17, to change Source Axis Distance, i.e., radiographic source 17 to The distance of convolution system shaft center line 131 realizes that Source Axis Distance is adjustable.

In Fig. 6, after bearing block II 7 is mobile and headstock 3 is swung, the direction of the movement of convolution system mounting base 14 can control And amplitude, make the axial line 21 of rotary shaft I 2 always by etc. centers 211.When actual therapeutic, tumour target center and equal centers are allowed It is overlapped.In this example, after tumour target center is overlapped with equal centers, no matter how Source Axis Distance changes, and how irradiating angle changes, and can all protect The axle center of card beam passes through tumour target center always, and the position without changing human body, i.e. the therapeutic bed of carrying patient need not be again It is mobile.

In Fig. 7, after the rotating part 132 for system of circling round rotates, it still can guarantee that the axial line 21 of rotary shaft I 2 passes through always Equal centers 211.

Referring to Fig. 8, the balance weight mechanism 9, the bearing II 912 that is overlapped including III 911, two axle center of bearing block and match Weight frame 913, wherein bearing II 912 that counter-balanced carriage 913 is overlapped with two axle center is connected, the bearing II 912 that two axle center are overlapped with Bearing block III 911 is connected, and bearing block III 911 is connected with balance weight mechanism linear moving mechanism 10, the bearing II that two axle center are overlapped 912 axial line 9121 is parallel with two axle center coincidence axial lines 41 of bearing I, reversely moves in bearing block II 7 and balance weight mechanism 9 When dynamic and headstock 3 is swung due to the bearing I 4 that two axle center are overlapped rotates, it can control counter-balanced carriage 913 to swing, make convolution system Rotating part 132 and the projection that is collectively formed of mounting platform 12 and the component that is mounted on mounting platform 12 still coincide with back Focus point and convolution system shaft center line 131, the head counterweight in the perpendicular plane of rotation system shaft center line 131 is straight Line reverse linkage mechanism 11, including two secondary 1111, one the first synchronous pulleys of pair 1112 of screw mechanism and two secondary second synchronous pulleys 1113, two secondary screw mechanisms 1111 include 11111, first lead screw shaft 11112 of first nut and two the first lead screws Support 11113, secondary first synchronous pulley 1112 include two first pulleys 11121 and first belt 11122, two pairs the Two synchronous pulleys 1113 include four the second belt wheels 11131 and second belt 11132, wherein two the first nuts 11111 It is connected with bearing block II 7 and fixed, two the first nuts 11111 are respectively fitted in two first lead screw shaft 11112, and every first Lead screw shaft 11112 is coupled with two the first leading screw bearings 11113 respectively, and four the first leading screw bearings 11113 are mounted on On assembling platform 12, two first pulleys 11121 are coupled with two first lead screw shaft 11112 respectively, the first 11122 sets of belt In two first pulleys 11121, two secondary every secondary four the second belt wheels 11131 are mounted on mounting platform 12, two the second skins Band 11132 is respectively fitted on four the second belt wheels 11131, on the second belt 11132 of four the second belt wheels 11131 support, 11132 outside of the second belt between two the second belt wheels 11131 is connected with bearing block II 7, other two second belt wheel 11131 Between the outside of the second belt 11132 be connected with balance weight mechanism 9, under the driving of drive system, first lead screw shaft 11112 Rotation, first lead screw shaft 11112 drive another first lead screw shaft 11112 to rotate by the first synchronous pulley 1112, and two First lead screw shaft 11112 drives two the first nut 11111 linear movements, and two the first nuts 11111 drive bearing block II 7 straight Line is mobile, and bearing block II 7 drives 9 reverse linear of balance weight mechanism mobile by the second synchronous pulley 1113.

Referring to Fig. 9, the balance weight mechanism 9, also can be used another mechanism, including main counter-balanced carriage 921, auxiliary counter-balanced carriage Linear moving mechanism 922 and auxiliary counter-balanced carriage 923, wherein auxiliary counter-balanced carriage 923 is connected with auxiliary counter-balanced carriage linear moving mechanism 922, auxiliary Counter-balanced carriage linear moving mechanism 922 is connected with main counter-balanced carriage 921, main counter-balanced carriage 921 and 10 phase of balance weight mechanism linear moving mechanism Even, the moving direction of auxiliary counter-balanced carriage linear moving mechanism 922 is parallel with the moving direction of balance weight mechanism linear moving mechanism 10, When bearing block II 7 and the reverse movement of balance weight mechanism 9 and headstock 3 are swung due to the bearing I 4 that two axle center are overlapped rotates, controllably Moving direction and amplitude of the auxiliary counter-balanced carriage 923 relative to main counter-balanced carriage 921 are made, rotating part 132 and the installation of convolution system are made The projection that platform 12 and the component being mounted on mounting platform 12 are collectively formed still coincides with convolution system shaft center line 131 Focus point and convolution system shaft center line 131 in perpendicular plane, the head match vertical line reverse linkage mechanism 11, packet Left and right screw thread ball screw framework 1121 and third synchronous pulley 1122 are included, every pair left and right screw thread ball screw framework 1121 includes Two the second nuts, 11211, one or so the second lead screw shaft of line 11212 and two second screw bearing seats 11213, a secondary third are same Walking belt wheel 1122 includes two third belt wheels 11221 and a third belt 11222, wherein every second lead screw shaft 11212 is divided It is not coupled with two second screw bearing seats 11213, four second screw bearing seats 11213 connect and consolidate with mounting platform 12 Fixed, two third belt wheels 11221 are coupled respectively at two second lead screw shaft 11212, the left and right screw thread ball-screw machine Structure 1121 is equipped with threaded sections, and threaded sections include threaded sections and reverse thread section in the same direction, the second nut 11211 difference It is cased with threaded sections, in four the second nuts 11211 of left and right screw thread ball screw framework 1121, two threaded sections in the same direction Second nut 11211 is connected with bearing block II 7, two the second nuts 11211 and counterweight of other two opposite direction threaded sections Mechanism 9 is connected, under the driving of drive system, one or so line second in two secondary left and right screw thread ball screw frameworks 1121 Thick stick axis 11212 rotates, which drives another or so the second lead screw of line by third synchronous pulley 1122 11212 rotating Vortex of axis, two groups or so 11212 rotating Vortexes of the second lead screw shaft of screw thread silk ball drive two group of second nut 11211 reverse linears are mobile, and the second nut 11211 of two groups of reverse movements drives bearing block II 7 and balance weight mechanism 9 reversed respectively Linear movement.

In summary: the Medical electronic linear accelerator rack of the utility model does not limit balance weight mechanism 9, head counterweight Straight line reverse linkage mechanism 11, mounting platform 12, convolution system 13, the rotating part 132 for system of circling round and convolution system installation The pattern of seat 14, balance weight mechanism 9 and head can answer the mounting platform 12 of different patterns with vertical line reverse linkage mechanism 11 and return The pattern of rotation system 13, it is adaptable, the movement of headstock 3, the movement of headstock 3 can be driven by 7 movement of second bearing seat The movement of radiographic source 17 can be driven, to change Source Axis Distance, i.e. the distance of radiographic source 17 to convolution 13 shaft center line of system, It is adjustable to realize Source Axis Distance, after second bearing seat 7 is mobile and headstock 3 is swung, can control convolution system mounting base 14 mobile Direction and amplitude, so that the axial line of the first rotary shaft 2 centers such as is passed through always, when actual therapeutic, to allow tumour target center with etc. Center is overlapped, and after tumour target center is overlapped with the centers of grade, no matter how Source Axis Distance changes, and how irradiating angle changes, and all can guarantee The axle center of beam passes through tumour target center always, and the position without changing human body, the i.e. therapeutic bed of carrying patient need not move again It is dynamic, realize the noncoplanar irradiation in the motionless situation of therapeutic bed in therapeutic process.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (7)

1. a kind of Medical electronic linear accelerator rack, including collimator (1), rotary shaft I (2), headstock (3), two axle center The bearing I (4) of coincidence, rotary shaft II (6), bearing block II (7), II linear moving mechanism of bearing block (8), is matched at bearing block I (5) Heavy-duty machine structure (9), balance weight mechanism linear moving mechanism (10), head with vertical line reverse linkage mechanism (11), mounting platform (12), Convolution system (13), convolution system mounting base (14), convolution system mounting base linear moving mechanism (15), pedestal (16) and ray Source (17), it is characterised in that: the collimator (1) is connected with rotary shaft I (2), the rotary shaft I (2) and headstock (3) phase Even, the bearing I (4) that the headstock (3) is overlapped with two axle center is connected, the bearing I (4) and bearing that described two axle center are overlapped I (5) of seat are connected, and the bearing block I (5) is connected with rotary shaft II (6), and the rotary shaft II (6) is connected with bearing block II (7), The bearing block II (7) is connected with II linear moving mechanism of bearing block (8), II linear moving mechanism of bearing block (8) installation On mounting platform (12), the balance weight mechanism (9) is connected with balance weight mechanism linear moving mechanism (10), and the balance weight mechanism is straight Line mobile mechanism (10) is mounted on mounting platform (12), the head with vertical line reverse linkage mechanism (11) respectively with bearing II (7) of seat are connected with balance weight mechanism (9), and the head is installed on mounting platform (12) one with vertical line reverse linkage mechanism (11) Side, mounting platform (12) lower end are connected with convolution system (13), and the convolution system (13) is installed on the installation of convolution system Seat (14) upper end, the convolution system mounting base (14) are connected with convolution system mounting base linear moving mechanism (15), and described time Rotation system mounting base linear moving mechanism (15) is installed on pedestal (16) upper end, the axial line (21) of the rotary shaft I with two Axle center is overlapped the axial line (41) of bearing I vertically and intersection is overlapped with radiographic source (17), and described two axle center are overlapped bearings I Axial line (41) is vertical with convolution system shaft center line (131), the axial line (61) of the rotary shaft II and two axle center weights The axial line (41) that sympodium holds I is vertical and intersection is overlapped with radiographic source (17), the axial line (61) of the rotary shaft II and time Rotation system shaft center line (131) in parallel, II linear moving mechanism of bearing block (8) and balance weight mechanism linear moving mechanism (10) moving direction is parallel, the shifting of II linear moving mechanism of bearing block (8) and balance weight mechanism linear moving mechanism (10) Dynamic direction is vertical with convolution system shaft center line (131), the convolution system shaft center line (131) and convolution system installation The moving direction of seat linear moving mechanism (15) is parallel, the rotating part (132) of the convolution system and mounting platform (12) edge It is perpendicular flat that convolution system shaft center line (131) is coincided at the projection that convolution system shaft center line (131) direction is formed Focus point and convolution system shaft center line (131) on face, the axial line (21) and convolution system rotary shaft of the rotary shaft I Heart line (131) is vertical and intersection point when intersecting is to wait centers (211), under the driving of each self actuating system, the convolution system Mounting base (14) can move linearly along the moving direction of convolution system mounting base linear moving mechanism (15), the convolution system Rotating part (132) can circle round system shaft center line (131) as axle center rotation.

2. a kind of Medical electronic linear accelerator rack according to claim 1, it is characterised in that: the balance weight mechanism (9), the bearing II (912) and counter-balanced carriage (913) being overlapped including bearing block III (911), two axle center, counter-balanced carriage (913) and two The bearing II (912) that a axle center is overlapped is connected, and the bearing II (912) that two axle center are overlapped is connected with bearing block III (911), bearing III (911) of seat are connected with balance weight mechanism linear moving mechanism (10), and two axle center are overlapped the axial line (9121) and two of bearing II The axial line (41) that a axle center is overlapped bearing I is parallel.

3. a kind of Medical electronic linear accelerator rack according to claim 1, it is characterised in that: the balance weight mechanism It (9) include main counter-balanced carriage (921), auxiliary counter-balanced carriage linear moving mechanism (922) and auxiliary counter-balanced carriage (923), wherein auxiliary counter-balanced carriage (923) it is connected with auxiliary counter-balanced carriage linear moving mechanism (922), auxiliary counter-balanced carriage linear moving mechanism (922) and main counter-balanced carriage (921) It is connected, main counter-balanced carriage (921) is connected with balance weight mechanism linear moving mechanism (10), auxiliary counter-balanced carriage linear moving mechanism (922) Moving direction is parallel with the moving direction of balance weight mechanism linear moving mechanism (10).

4. a kind of Medical electronic linear accelerator rack according to claim 1, it is characterised in that: the bearing block II (7) it is moved backward with balance weight mechanism (9), the bearing I (4) that bearing block II (7) and headstock (3) are overlapped by two axle center when mobile It rotates and swings.

5. a kind of Medical electronic linear accelerator rack according to claim 1, it is characterised in that: the head counterweight is straight Line reverse linkage mechanism (11), including two secondary screw mechanisms (1111), secondary first synchronous pulley (1112) and two pairs second are same It walks belt wheel (1113), two secondary screw mechanisms (1111) include first nut (11111), first lead screw shaft (11112) With two the first leading screw bearings (11113), secondary first synchronous pulley (1112) includes two first pulleys (11121) and one First belt (11122), two secondary second synchronous pulleys (1113) include four the second belt wheels (11131) and second belt (11132), wherein two the first nuts (11111) are connected with bearing block II (7) and fixed, two the first nuts (11111) point Do not cover on two first lead screw shaft (11112), every first lead screw shaft (11112) respectively with two the first leading screw bearings (11113) it is coupled, four the first leading screw bearings (11113) are mounted on mounting platform (12), two first pulleys (11121) it is coupled respectively with two first lead screw shaft (11112), the first belt (11122) is covered in two first pulleys (11121) on, two secondary every secondary four the second belt wheels (11131) are mounted on mounting platform (12), two the second belts (11132) It is respectively fitted on four the second belt wheels (11131), on the second belt (11132) of four the second belt wheels (11131) support, two It is connected on the outside of the second belt (11132) between a second belt wheel (11131) with bearing block II (7), other two second belt wheel (11131) it is connected on the outside of the second belt (11132) between with balance weight mechanism (9).

6. a kind of Medical electronic linear accelerator rack according to claim 1, it is characterised in that: the head counterweight is straight Line reverse linkage mechanism (11), including left and right screw thread ball screw framework (1121) and third synchronous pulley (1122), it is every secondary left Right-hand thread ball screw framework (1121) include two the second nuts (11211), one or so the second lead screw shaft of line (11212) and Two second screw bearing seats (11213), a secondary third synchronous pulley (1122) include two third belt wheels (11221) and one the Three belts (11222), wherein every second lead screw shaft (11212) is pacified with two second screw bearing seat (11213) cooperations respectively Dress, four second screw bearing seats (11213) connect with mounting platform (12) and fixation, two third belt wheels (11221) respectively at Two second lead screw shaft (11212) are coupled.

7. a kind of Medical electronic linear accelerator rack according to claim 6, it is characterised in that: the left and right screw thread rolling Screw mechanism (1121) is equipped with threaded sections, and threaded sections include threaded sections and reverse thread section in the same direction, the second spiral shell Cap (11211) is cased with threaded sections respectively, in four the second nuts (11211) of left and right screw thread ball screw framework (1121), The second nut (11211) of two threaded sections in the same direction is connected with bearing block II (7), and the two of other two opposite direction threaded sections A second nut (11211) is connected with balance weight mechanism (9).