CN103301581B - Large medical equipment therapeutic bed - Google Patents
Large medical equipment therapeutic bed Download PDFInfo
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- CN103301581B CN103301581B CN201310249726.4A CN201310249726A CN103301581B CN 103301581 B CN103301581 B CN 103301581B CN 201310249726 A CN201310249726 A CN 201310249726A CN 103301581 B CN103301581 B CN 103301581B
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Abstract
The present invention relates to a kind of large medical equipment therapeutic bed, belong to field of medical device, comprise bed revolution assembly, articulated bed base on bed revolution assembly, bed foundation fixes lifting assembly, lifting assembly establishes carriage assembly, carriage assembly is established traversing assembly, traversing assembly is connected with carriage assembly by horizontal bearing, vertical package is connected with traversing assembly by longitudinal bearing, and carriage assembly establishes driving device, can on-line automatic accurate round-off error, running precision is high, safe and reliable.
Description
Technical field
The present invention relates to a kind of large medical equipment therapeutic bed, belong to field of medical device.
Background technology
The development trend of radiotherapy is the accuracy and the accuracy that improve constantly radiotherapy links, stereotaxis device especially armarium therapeutic bed substantially increases the fixed precision of patient, but these are based upon on hypothesis that patient is rigid body, and actual target of irradiating is internal target.The application of IGRT, ART technology can detect the position deviation of internal target and carry out on-line amending, and this will ask therapeutic bed will have the function of on-line automatic accurate correct.And ion beam adjusts the application of strong technology, require that therapeutic bed has higher pendulum position precision, current existing conventional therapy bed is quaternary structure, after therapeutic bed load, bed surface has inclination, bed body also has distortion simultaneously, and current therapeutic bed is not high to the rotation positioning precision and repetitive positioning accuracy that drive the revolution of positioning precision, bed in length and breadth, the needs of inadaptable accurately pendulum position.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: provide a kind of large medical equipment therapeutic bed, can on-line automatic accurate round-off error, and running precision is high, safe and reliable.
Large medical equipment therapeutic bed of the present invention, comprise bed revolution assembly, articulated bed base on bed revolution assembly, bed foundation fixes lifting assembly, lifting assembly establishes carriage assembly, carriage assembly is established traversing assembly, traversing assembly is connected with carriage assembly by horizontal bearing, vertical package is connected with traversing assembly by longitudinal bearing, and carriage assembly establishes driving device;
Described revolution assembly comprises revolution foundation, comprise base, actuating device, bracing or strutting arrangement, actuating device comprises worm gear core wheel, worm screw, and worm gear core wheel is fixed on base, and worm gear core wheel outer rim fixes worm rim, worm and wheel wheel rim connects, worm screw is arranged on casing, worm screw one end connection reducer, and decelerator connects servomotor, connect central shaft by rolling bearing two inside worm gear core wheel, central shaft is fixedly connected with casing; Bracing or strutting arrangement is fixed on casing, worm screw two ends are connected with casing radial through rolling bearing one, worm shaft is to arranging thrust bearing, bracing or strutting arrangement comprises tripod, tripod is arranged support wheel to be connected with base, bracing or strutting arrangement arranges two groups of pneumatic units, and pneumatic unit is arranged on tripod both sides, and servomotor is provided with rotary encoder and brake;
Described driving device comprises drive motors, drive motors is arranged on the side of base, arranges driving shaft and Timing Belt wheel shaft in base, and drive motors connects driving shaft, driving shaft is provided with electromagnetic clutch, be provided with clutch gear outside electromagnetic clutch, clutch gear engages with idler gear, idler gear and gear wheel engagement, idler gear is arranged on base side wall, gear wheel is arranged on Timing Belt wheel shaft, and gear wheel side is provided with driving pulley, and driving pulley engages with Timing Belt;
Described vertical package comprises and vertically moves frame, vertically move frame upper surface setting-in adjustment internal layer, vertically move symmetry on frame and fix two motors, the output shaft of each motor connects ball-screw, the leading screw seat of ball-screw is connected with the slide block of moving guide rail, vertically moves frame end portion and establishes self-aligning ball bearing.
Worm screw two ends are connected with casing radial through rolling bearing one, and worm shaft is to arranging thrust bearing.
Driving pulley both sides arrange driven pulley, and driven pulley is arranged on driven belt wheel shaft respectively, and Timing Belt walks around the driven pulley of driving pulley and opposite side successively from the driven pulley of wherein side.
Movable stand below ball-screw establishes position detecting device, in order to detect the anglec of rotation of ball-screw.
Position detecting device comprises encoder and potentiometer, ensure that the reliability that position is detected.
Operation principle and process:
During work, by the rotary encoder input servomotor anglec of rotation, servomotor drives worm screw to rotate by decelerator, worm screw rotates around worm gear core wheel, drive casing and central axis, casing drives bracing or strutting arrangement and therapeutic bed to rotate, rotational angle is transferred to potentiometer by Timing Belt by the synchronous pulley on casing, potentiometer by data feedback to servosystem, servosystem synchronously regulates, after repeatedly regulating, arrive exact position, stop is carried out in two groups of pneumatic unit actions simultaneously, realizes the accurate location of therapeutic bed;
When electromagnetic clutch energising, the electromagnetic clutch that rotates through of motor passes to clutch gear, because clutch gear engages with idler gear, idler gear engages with gear wheel, and gear wheel and driving pulley are all mounted on Timing Belt wheel shaft, then the rotation of motor finally can drive driving pulley to rotate.The one side of synchronous belt teeth engages with driving pulley, and another plane is close to driven pulley, and the two ends of Timing Belt are arranged on the movable stand assembly of therapeutic bed, and when base is fixed, the rotation of motor can drive movable stand assembly to move, thus plays the effect of driving.Potentiometer is connected on Timing Belt wheel shaft, namely directly coaxial with driving pulley, the rotation data of reading driving pulley that can be real-time.Incremental encoder is arranged on encoder pinion shaft, and engage with the encoder gear wheel be arranged on Timing Belt wheel shaft, by amplifying between encoder gear wheel and encoder pinion shaft, reading rotation data that can be real-time and and potentiometer form check and correction and verify, to ensure the accuracy of data;
When two motor rotating in same directions, realize the pitching function of bed, when two motor adverse movements, realize the swing function of bed, drive disk assembly adopts the process eliminating gap, and indelible drive gap is then compensated by the optimum configurations of digital control system, position detecting device is detected by encoder and potentiometer, the employing of above technology, the rotation positioning precision of vertical package can reach 0.1 °, and bed upgrades to sextuple structure by quaternary structure simultaneously.
The beneficial effect that the present invention is compared with prior art had is:
Therapeutic bed revolution angle control accuracy is high, and digital independent is accurate, and therapeutic bed is stable, and safety is good; Two pneumatic breaks, stop degree of accuracy is high, effective, and accuracy and the safety for the treatment of are greatly improved, and transmission efficiency is high, both convenient for installation and maintenance, also reduce cost.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention schematic diagram;
Fig. 2 is structural representation of the present invention;
Fig. 3 is Fig. 1 front sectional view;
Fig. 4 is actuating device partial sectional view;
Fig. 5 is Fig. 4 A-A cross-sectional view;
Fig. 6 is bracing or strutting arrangement assembling schematic diagram;
Fig. 7 is Fig. 6 B-B cross-sectional view;
Fig. 8 is structural representation of the present invention;
Fig. 9 is the A-A sectional structure schematic diagram of Fig. 8;
Figure 10 is vertical package top view;
Figure 11 is Figure 10 sectional view.
In figure: 1, bed revolution assembly; 101, base; 102, mechanical stop; 103, Timing Belt; 104, actuating device; 105, bracing or strutting arrangement; 106, potentiometer; 107, bearing gland; 108, rolling bearing one; 109, worm screw; 110, motor flange; 111, decelerator; 112, servomotor; 113, casing; 114, worm gear core wheel; 115, central shaft; 116, rolling bearing two; 117, synchronous pulley; 118, worm rim; 119, inner support plate; 120, external support board; 121, pole; 122, tripod; 123, support wheel; 124, pneumatic unit; 2, bed foundation; 3, lifting assembly; 4, carriage assembly; 5, horizontal bearing; 6, traversing assembly; 7, driving device; 701, drive motors; 702, idler gear; 703, gear wheel; 704, incremental encoder; 705, encoder pinion shaft; 706, driving pulley; 707, base; 708, potentiometer; 709, electromagnetic clutch; 710, clutch gear; 711, driving shaft; 712, encoder gear wheel; 713, Timing Belt wheel shaft; 714, driven pulley; 715, driven belt wheel shaft; 716, Timing Belt; 8, chair assembly; 9, vertical package; 901, moving guide rail; 902, ball-screw; 903, motor; 904, self-aligning ball bearing; 905, internal layer is adjusted; 906, frame is vertically moved; 907, position detecting device; 10, longitudinal bearing.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described further:
As shown in Figure 1, large medical equipment therapeutic bed of the present invention, comprise bed revolution assembly 1, articulated bed base 2 on bed revolution assembly 1, bed foundation 2 is fixed lifting assembly 3, lifting assembly 3 is established carriage assembly 4, carriage assembly 4 is established traversing assembly 6, traversing assembly 6 is connected with carriage assembly 4 by horizontal bearing 5, and vertical package 9 is connected with traversing assembly 6 by longitudinal bearing 10, carriage assembly 4 is established driving device 7;
As shown in Fig. 2-Fig. 7, described revolution assembly comprises revolution foundation, comprise base 101, actuating device 104, bracing or strutting arrangement 105, actuating device 104 comprises worm gear core wheel 114, worm screw 109, worm gear core wheel 114 is fixed on base 101, worm gear core wheel 114 outer rim fixes worm rim 118, worm screw 109 is connected with worm rim 118, worm screw 109 is arranged on casing 113, worm screw 109 one end connection reducer 111, decelerator 111 connects servomotor 112, central shaft 115 is connected by rolling bearing 2 116 inside worm gear core wheel 114, central shaft 115 is fixedly connected with casing 113, bracing or strutting arrangement 105 is fixed on casing 113, worm screw 109 two ends are connected with casing 113 radial through rolling bearing 1, worm screw 109 axially arranges thrust bearing, bracing or strutting arrangement 105 comprises tripod 122, tripod 122 is arranged support wheel 123 to be connected with base 101, bracing or strutting arrangement 105 arranges two groups of pneumatic units 124, and pneumatic unit 124 is arranged on tripod 122 both sides, and servomotor 112 is provided with rotary encoder and brake,
As illustrated in figs. 8-9, described driving device comprises drive motors 701, drive motors 701 is arranged on the side of base 707, driving shaft 711 and Timing Belt wheel shaft 713 are set in base 707, drive motors 701 connects driving shaft 711, driving shaft 711 is provided with electromagnetic clutch 709, clutch gear 710 is installed outside electromagnetic clutch 709, clutch gear 710 engages with idler gear 702, idler gear 702 and gear wheel 703 engage, idler gear 702 is arranged on base 707 sidewall, gear wheel 703 is arranged on Timing Belt wheel shaft 713, gear wheel 703 side is provided with driving pulley 706, driving pulley 706 engages with Timing Belt 716,
As shown in Figure 10-Figure 11, described vertical package comprises and vertically moves frame 906, vertically move frame 906 upper surface setting-in adjustment internal layer 905, vertically move symmetry on frame 906 and fix two motors 903, the output shaft of each motor 903 connects ball-screw 902, the leading screw seat of ball-screw 902 is connected with the slide block of moving guide rail 901, and moving guide rail 901 is fixed on and vertically moves on frame 906, vertically moves frame 906 end and establishes self-aligning ball bearing 904.
Worm screw 109 two ends are connected with casing 113 radial through rolling bearing 1, and worm screw 109 axially arranges thrust bearing.
Driving pulley 706 both sides arrange driven pulley 714, and driven pulley 714 is arranged on driven belt wheel shaft 715 respectively, and Timing Belt 716 walks around the driven pulley 714 of driving pulley 706 and opposite side successively from the driven pulley 714 of wherein side.
Movable stand below ball-screw 902 is established position detecting device 907, in order to detect the anglec of rotation of ball-screw 902.
Position detecting device 907 comprises encoder and potentiometer, ensure that the reliability that position is detected.
Operation principle and process:
During work, by rotary encoder input servomotor 112 anglec of rotation, servomotor 112 drives worm screw 109 to rotate by decelerator 111, worm screw 109 rotates around worm gear core wheel 114, casing 113 and central shaft 115 is driven to rotate, casing 113 drives bracing or strutting arrangement 105 and therapeutic bed to rotate, rotational angle is transferred to potentiometer 106 by Timing Belt 103 by the synchronous pulley 117 on casing 113, potentiometer 106 by data feedback to servosystem, servosystem synchronously regulates, exact position is arrived after repeatedly regulating, stop is carried out in two groups of pneumatic unit 124 actions simultaneously, realize the accurate location of therapeutic bed,
When electromagnetic clutch 709 is energized, the electromagnetic clutch 709 that rotates through of drive motors 701 passes to clutch gear 710, because clutch gear 710 engages with idler gear 702, idler gear 702 engages with gear wheel 703, and gear wheel 703 and driving pulley 706 are all mounted on Timing Belt wheel shaft 713, then the rotation of drive motors 701 finally can drive driving pulley 706 to rotate.The toothed one side of Timing Belt 716 engages with driving pulley 706, another plane is close to driven pulley 714, the two ends of Timing Belt 716 are arranged on the movable stand assembly of therapeutic bed, when base 707 is fixed, the rotation of drive motors 701 can drive movable stand assembly to move, thus plays the effect of driving, and potentiometer 708 is connected on Timing Belt wheel shaft 713, namely directly coaxial with driving pulley 706, the rotation data of reading driving pulley 706 that can be real-time.Incremental encoder 704 is arranged on encoder pinion shaft 705, and engage with the encoder gear wheel 712 be arranged on Timing Belt wheel shaft 713, by amplifying between encoder gear wheel 712 and encoder pinion shaft 705, reading rotation data that can be real-time and and potentiometer 708 form check and correction and verify, to ensure the accuracy of data;
When two motor 903 rotating in same directions, realize the pitching function of bed, when two motor 903 adverse movements, realize the swing function of bed, drive disk assembly adopts the process eliminating gap, and indelible drive gap is then compensated by the optimum configurations of digital control system, position detecting device 907 is detected by encoder and potentiometer, the employing of above technology, the rotation positioning precision of vertical package can reach 0.1 °, and bed upgrades to sextuple structure by quaternary structure simultaneously.
Claims (4)
1. a large medical equipment therapeutic bed, comprises bed revolution assembly (1), the upper articulated bed base (2) of bed revolution assembly (1),
The upper fixing lifting assembly (3) of bed foundation (2), lifting assembly (3) is established carriage assembly (4), carriage assembly (4) is established traversing assembly (6), traversing assembly (6) is connected with carriage assembly (4) by horizontal bearing (5), vertical package (9) is connected with traversing assembly (6) by longitudinal bearing (10), carriage assembly (4) is established driving device (7), it is characterized in that:
Described revolution assembly comprises revolution foundation, comprise base (101), actuating device (104), bracing or strutting arrangement (105), actuating device (104) comprises worm gear core wheel (114), worm screw (109), worm gear core wheel (114) is fixed on base (101), worm gear core wheel (114) outer rim fixes worm rim (118), worm screw (109) is connected with worm rim (118), worm screw (109) is arranged on casing (113), worm screw (109) one end connection reducer (111), decelerator (111) connects servomotor (112), worm gear core wheel (114) inner side connects central shaft (115) by rolling bearing two (116), central shaft (115) is fixedly connected with casing (113), bracing or strutting arrangement (105) is fixed on casing (113), worm screw (109) two ends are connected with casing (113) radial through rolling bearing one (108), worm screw (109) axially arranges thrust bearing, bracing or strutting arrangement (105) comprises tripod (122), tripod (122) is arranged support wheel (123) to be connected with base (101), bracing or strutting arrangement (105) arranges two groups of pneumatic units (124), pneumatic unit (124) is arranged on tripod (122) both sides, servomotor (112) is provided with rotary encoder and brake,
Described driving device comprises drive motors (701), drive motors (701) is arranged on the side of base (707), driving shaft (711) and Timing Belt wheel shaft (713) are set in base (707), drive motors (701) connects driving shaft (711), driving shaft (711) is provided with electromagnetic clutch (709), clutch gear (710) is installed outside electromagnetic clutch (709), clutch gear (710) engages with idler gear (702), idler gear (702) and gear wheel (703) engagement, idler gear (702) is arranged on base (707) sidewall, gear wheel (703) is arranged on Timing Belt wheel shaft (713), gear wheel (703) side is provided with driving pulley (706), driving pulley (706) engages with Timing Belt (716),
Described vertical package comprises and vertically moves frame (906), vertically move frame (906) upper surface setting-in adjustment internal layer (905), vertically move the upper symmetry of frame (906) and fix two motors (903), the output shaft of each motor (903) connects ball-screw (902), the leading screw seat of ball-screw (902) is connected with the slide block of moving guide rail (901), moving guide rail (901) is fixed on and vertically moves on frame (906), vertically moves frame (906) end and establishes self-aligning ball bearing (904).
2. large medical equipment therapeutic bed according to claim 1, it is characterized in that: driving pulley (706) both sides arrange driven pulley (714), driven pulley (714) is arranged on driven belt wheel shaft (715) respectively, and Timing Belt (716) walks around the driven pulley (714) of driving pulley (706) and opposite side successively from the driven pulley (714) of wherein side.
3. large medical equipment therapeutic bed according to claim 1, is characterized in that: the movable stand of ball-screw (902) below establishes position detecting device (907).
4. large medical equipment therapeutic bed according to claim 3, is characterized in that: position detecting device (907) comprises encoder and potentiometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310249726.4A CN103301581B (en) | 2013-06-21 | 2013-06-21 | Large medical equipment therapeutic bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310249726.4A CN103301581B (en) | 2013-06-21 | 2013-06-21 | Large medical equipment therapeutic bed |
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| Publication Number | Publication Date |
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| CN103301581A CN103301581A (en) | 2013-09-18 |
| CN103301581B true CN103301581B (en) | 2016-01-13 |
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| CN201310249726.4A Active CN103301581B (en) | 2013-06-21 | 2013-06-21 | Large medical equipment therapeutic bed |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105147490A (en) * | 2015-09-30 | 2015-12-16 | 玉林市好邦医疗设备有限责任公司 | Catheter bed for interventional diagnosis and treatment |
| US11000698B2 (en) | 2015-10-26 | 2021-05-11 | Shenzhen Our New Medical Technologies Development Co., Ltd. | Device and method for controlling rotation of radiotherapy equipment |
| CN105288869B (en) * | 2015-10-26 | 2018-06-08 | 深圳市奥沃医学新技术发展有限公司 | A kind of control device and method for radiotherapy apparatus rotation |
| CN108114379B (en) * | 2017-12-21 | 2020-02-14 | 山东省肿瘤防治研究院 | Medical electron linear accelerator pendulum position positioner |
| CN108309342B (en) * | 2018-02-13 | 2021-03-30 | 日照市妇幼保健院 | Liftable image branch of academic or vocational study radiation protection inspection desk |
| CN109276820A (en) * | 2018-11-15 | 2019-01-29 | 广州科莱瑞迪医疗器材股份有限公司 | A kind of real-time dynamic compensating system of radiotherapy respiratory movement and method |
| CN110665129A (en) * | 2018-12-25 | 2020-01-10 | 江苏海明医疗器械有限公司 | Revolution mechanism for medical accelerator treatment bed |
| CN109876311B (en) * | 2019-03-27 | 2023-09-29 | 陕西华明普泰医疗设备有限公司 | Six-degree-of-freedom radiotherapy bed |
| WO2022057085A1 (en) * | 2020-09-15 | 2022-03-24 | 苏州雷泰医疗科技有限公司 | Treatment bed revolution structure and accelerator treatment bed |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2078636U (en) * | 1990-12-11 | 1991-06-12 | 吴雪林 | Head and neck-placing fixer for radiation therapy |
| US7604645B2 (en) * | 2002-08-07 | 2009-10-20 | Civco Medical Instruments Inc. | Ultrasound probe support and stepping device |
| CN203303519U (en) * | 2013-06-21 | 2013-11-27 | 山东新华医疗器械股份有限公司 | Large medical equipment treatment bed |
-
2013
- 2013-06-21 CN CN201310249726.4A patent/CN103301581B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2078636U (en) * | 1990-12-11 | 1991-06-12 | 吴雪林 | Head and neck-placing fixer for radiation therapy |
| US7604645B2 (en) * | 2002-08-07 | 2009-10-20 | Civco Medical Instruments Inc. | Ultrasound probe support and stepping device |
| CN203303519U (en) * | 2013-06-21 | 2013-11-27 | 山东新华医疗器械股份有限公司 | Large medical equipment treatment bed |
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| CN103301581A (en) | 2013-09-18 |
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