WO2022170591A1

WO2022170591A1 - Machine frame assembly and treatment device

Info

Publication number: WO2022170591A1
Application number: PCT/CN2021/076590
Authority: WO
Inventors: 郭召
Original assignee: 西安大医集团股份有限公司
Priority date: 2021-02-10
Filing date: 2021-02-10
Publication date: 2022-08-18

Abstract

A machine frame assembly. The machine frame assembly comprises a machine frame and a roller; the machine frame comprises a base, a support frame is fixed on one side of the base, a fixed hole is provided in the support frame, and a rolling support portion is fixed to the other side of the base; one end of the roller is rotatably provided in the fixed hole, and the other end of the roller abuts against the rolling support portion.

Description

Frame components and treatment equipment

technical field

The present disclosure relates to the technical field of medical devices, and in particular, to a rack assembly and a treatment device.

Background technique

Radiotherapy is a method of using radiation to treat tumors, and it is an important means of treating malignant tumors, and radiotherapy equipment is the key medical equipment for radiotherapy. In the related art, the radiotherapy equipment includes a base and a roller, the roller is rotatably arranged on the base, and the roller is provided with a treatment head, and the treatment head can rotate with the rotation of the roller.

SUMMARY OF THE INVENTION

In one aspect, a rack assembly is provided. The frame assembly includes a frame and a roller, the frame includes a base, a support frame is fixed on one side of the base, a fixing hole is opened on the support frame, and a rolling support is fixed on the other side of the base One end of the drum is rotatably disposed in the fixing hole, and the other end of the drum is in contact with the rolling support portion.

In some embodiments, the frame further includes a turntable bearing, the drum is rotatably arranged in the fixing hole through the turntable bearing, the outer ring of the turntable bearing is fixedly connected with the support frame, and the turntable The inner ring of the bearing is fixedly connected with the drum.

In some embodiments, the outer ring of the turntable bearing and the support frame are fixedly connected by fasteners; and/or the inner ring of the turntable bearing and the drum are fixedly connected by fasteners.

In some embodiments, a groove is formed on the inner wall of the fixing hole, the groove is an annular structure and is arranged coaxially with the fixing hole, and the outer ring of the slewing bearing is fixed in the groove.

In some embodiments, the drum includes a cylindrical body and a driving disc, one end of the cylindrical body and the driving disc are both fixedly connected to the inner ring of the slewing plate bearing, and the other end of the cylindrical body is connected to the rolling The support part abuts, and a ring gear is arranged on the drive plate, and the ring gear is used for driving connection with the drive mechanism.

In some embodiments, the drive plate and the cylinder are respectively disposed on two sides of the support frame, and the drive plate, the inner ring of the slewing plate bearing and the cylinder are fixedly connected by fasteners.

In some embodiments, the rolling support part is a support wheel, the axis of the support wheel and the axis of the drum are parallel to each other, and one end of the drum away from the support frame is in contact with the support wheel.

In some embodiments, at least one support wheel is respectively disposed on both sides of the axis of the drum, and the support wheels located on both sides of the axis of the drum are arranged symmetrically with each other.

In some embodiments, the support wheel is a cam bearing, the cam shaft of the cam bearing is fixed on the base, and the roller is in contact with the cam bearing.

In some embodiments, an eccentric bushing is provided between the outer ring and the inner ring of the cam bearing.

In some embodiments, a limiting structure is provided between the base and the drum, and the limiting structure is used to prevent the drum from rotating relative to the base.

In some embodiments, the limiting structure includes a pin, a first limiting hole formed on the drum, and a protrusion provided on the base, the first limiting hole is opened on the drum away from the On the end surface of the support frame, the protrusion is arranged on the side of the base away from the support frame, the protrusion is provided with a second limit hole, and the pin is used for inserting into the first limit hole and the second limit hole.

In another aspect, a therapeutic device is provided. The treatment device includes: the frame assembly according to any one of the above embodiments, a treatment head and a driving mechanism, the treatment head is disposed on the drum, and the driving mechanism is used to drive the drum to rotate.

Description of drawings

In order to illustrate the technical solutions in the present disclosure more clearly, the following briefly introduces the accompanying drawings that need to be used in some embodiments of the present disclosure. Obviously, the accompanying drawings in the following description are only the appendixes of some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained from these drawings. In addition, the accompanying drawings in the following description may be regarded as schematic diagrams, and are not intended to limit the actual size of the product involved in the embodiments of the present disclosure, the actual flow of the method, the actual timing of signals, and the like.

FIG. 1 is a structural diagram of a rack assembly provided by an embodiment of the present disclosure;

FIG. 2 is a front view of a rack assembly provided by an embodiment of the present disclosure;

Fig. 3 is the A-A sectional view of Fig. 2;

Fig. 4 is the enlarged view of B region of Fig. 3;

5 is a cross-sectional view of a support frame provided by an embodiment of the company;

6 is a cross-sectional view of a connection structure between a drum, a support frame, and a slewing plate bearing according to an embodiment of the present disclosure;

FIG. 7 is a front view of a rack provided by an embodiment of the present disclosure;

Fig. 8 is the C-C sectional view of Fig. 7;

Fig. 9 is the enlarged view of D area of Fig. 8;

FIG. 10 is a structural diagram of a rack provided by an embodiment of the present disclosure;

FIG. 11 is a structural diagram of a first angle of a treatment device provided by an embodiment of the present disclosure;

FIG. 12 is a structural diagram of a second angle of a treatment device provided by an embodiment of the present disclosure;

13 is a structural diagram of an embodiment of a deceleration mechanism of a treatment device provided by an embodiment of the present disclosure;

Fig. 14 is a structural diagram of another embodiment of the deceleration mechanism of the treatment device provided by the embodiment of the present disclosure;

15 is a front view of a therapeutic device provided in the practice of the present disclosure.

Detailed ways

The technical solutions in some embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, but not all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments provided by the present disclosure fall within the protection scope of the present disclosure.

Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms such as the third person singular "comprises" and the present participle "comprising" are used It is interpreted as the meaning of openness and inclusion, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" example)" or "some examples" and the like are intended to indicate that a particular feature, structure, material or characteristic related to the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be included in any suitable manner in any one or more embodiments or examples.

Hereinafter, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

In describing some embodiments, the expressions "coupled" and "connected" and their derivatives may be used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more components are in direct physical or electrical contact with each other. As another example, the term "coupled" may be used in describing some embodiments to indicate that two or more components are in direct physical or electrical contact. However, the terms "coupled" or "communicatively coupled" may also mean that two or more components are not in direct contact with each other, yet still co-operate or interact with each other. The embodiments disclosed herein are not necessarily limited by the content herein.

"At least one of A, B, and C" has the same meaning as "at least one of A, B, or C", and both include the following combinations of A, B, and C: A only, B only, C only, A and B , A and C, B and C, and A, B, and C.

"A and/or B" includes the following three combinations: A only, B only, and a combination of A and B.

Radiotherapy is a local treatment method that uses radiation to treat tumors, and it is an important means of treating malignant tumors, and radiotherapy equipment is the key medical equipment for radiotherapy.

In the related art, the radiotherapy equipment includes a base 110 and a roller 200 . The roller 200 is rotatably disposed on the base 110 , and the roller 200 is provided with a treatment head, which can rotate with the rotation of the roller 200 .

The radiotherapy equipment provided in the related art has a separate structure between the base 110 and the drum 200, and needs to be transported separately during transportation, and after arriving at the hospital, the base 110 needs to be fixed on the ground first, and then the hoisting equipment is used to lift the radiotherapy equipment. The drum 200 is hoisted to the base 110. During the hoisting, it is also necessary to ensure that the drum 200 and the supporting parts on the base 110 are precisely matched. Since the radiotherapy equipment is generally installed indoors and the space is relatively small, the hoisting equipment is used for hoisting, and the construction is relatively inconvenient. This leads to higher installation difficulty, longer delivery cycle, and reduced user experience.

In order to solve the above problem, as shown in FIG. 1 , an embodiment of the present disclosure provides a frame assembly, including a frame 100 and a drum 200 , the frame 100 includes a base 110 , and a support frame 120 is provided on one side of the base 110 , the support frame 120 is provided with a fixing hole 121, the other side of the base 110 is provided with a rolling support portion 130, one end of the roller 200 is rotatably arranged in the fixing hole 121 along its axial direction, and the other end of the roller 200 is connected to the rolling support The part 130 abuts.

In the rack assembly provided by the present disclosure, since the base 110 is provided with a support frame 120 , the support frame 120 is provided with a fixing hole 121 , and one end of the roller 200 along the axial direction is rotated and disposed in the fixing hole 121 , and the other end is connected to the base 110 . The roller 200 is rotated relative to the base 110, and the roller 200 is set in the fixing hole 121 of the support frame 120, that is, the fixing hole 121 can limit the roller 200, so that the roller The 200 and the base 110 cannot be separated from each other, so that the drum 200 can be transported together with the base 110 and the support frame 120 during transportation, that is, the drum 200 and the frame 100 are assembled together in advance and then transported to the hospital for installation. Compared with the related art, the rack assembly provided by the present disclosure can be assembled in advance, so that the drum 200 and the rack 100 are transported together, which is beneficial to reduce transportation costs, and after the rack assembly is transported to the hospital as a whole, it only needs to be fixed as a whole. It can be installed on the ground, and it does not need to be assembled in a small space, which can reduce the difficulty of construction, shorten the delivery period, and help improve the user experience.

In some embodiments, the support frame 120 and the base 110 provided by the present disclosure may be fixedly connected by welding or other means, or may be fixedly connected by parts such as bolts, and may also be formed into an integral structure. Therefore, for the two The way of fixing between them is not specifically limited.

It should be pointed out that the rolling support portion 130 is disposed on the base 110, which means that the rolling support portion 130 does not move relative to the base, but the rolling support portion 130 and the roller 200 can roll relative to each other, that is to say, the rolling support portion 130 includes rotation. part and the fixed part, the rotating part can rotate relative to the fixed part, therefore, the fixed part is fixedly connected with the base 110, and the rotating part is in contact with the drum 200, so that when the drum 200 rotates, the rotating part rotates at the same time, so that the drum 200 can be reduced. friction during rotation.

As shown in FIG. 1 , FIG. 2 , and FIG. 4 , the frame assembly provided by the present disclosure further includes a turntable bearing 140 , and the drum 200 is rotatably disposed in the fixing hole 121 through the turntable bearing 140 . The rotary connection between the drum 200 and the support frame 120 can be realized by the slewing bearing 140. Since the slewing bearing 140 is a kind of comprehensive load that can bear large axial load, radial load and overturning moment at the same time, it integrates support, rotation, It is a large bearing with a special structure that integrates various functions such as transmission and fixing. Therefore, the use of the turntable bearing 140 can support the drum 200 with a large overall volume and weight, so as to realize the rotation of the drum 200 in the fixing hole 121 .

Specifically, as shown in FIGS. 2 , 3 and 4 , the outer ring 142 of the turntable bearing 140 is fixedly connected to the support frame 120 , and the inner ring 141 of the turntable bearing 140 is fixedly connected to the drum 200 . By fixing the outer ring 142 of the turntable bearing 140 on the support frame 120 , the inner ring 141 of the turntable bearing 140 is fixedly connected to the drum 200 , so that the drum 200 can rotate relative to the support frame 120 , and the support frame can be rotated through the turntable bearing 140 . The 120 and the drum 200 form an integral structure, which cannot be separated, which is convenient for overall transportation and installation.

In some embodiments, fasteners 143 may be used to connect the outer ring 142 of the turntable bearing 140 to the support frame 120 , and meanwhile, welding may be used to connect the inner ring of the turntable bearing 140 to the drum 200 .

In some embodiments, the outer ring 142 of the turntable bearing 140 and the support frame 120 may be connected by welding, and at the same time, the inner ring of the turntable bearing 140 and the drum 200 may be connected by a fastener 143 .

In some embodiments, fasteners 143 are used to connect between the outer ring 142 of the turntable bearing 140 and the support frame 120 and between the inner ring of the turntable bearing 140 and the drum 200 .

Compared with fixing by welding, fixing by fasteners 143 is more convenient for disassembly, which is conducive to maintenance and replacement of parts.

In some embodiments, the fasteners 143 can be bolts, as shown in FIGS. 2 , 3 and 4 , through the outer ring 142 of the slewing bearing 140 and the support frame 120 along the axis parallel to the fixing hole 121 . The threaded holes are opened in the direction of the fixing hole 121, and a plurality of threaded holes are opened around the circumference of the fixing hole 121, and then the threaded holes on the outer ring 142 of the slewing bearing 140 and the corresponding threaded holes on the support frame 120 are matched with each other through a plurality of bolts. , so that the outer ring 142 of the slewing bearing 140 is fixedly connected to the support frame 120 .

In some embodiments, the fastener 143 can also be fixed with a pin shaft, as shown in FIGS. 2 , 3 and 5 , by inserting a line parallel to the fixing hole 121 on the outer ring 142 of the slewing bearing 140 and the support frame 120 . A through hole is opened in the direction of the axis of the bearing, and a plurality of through holes are opened around the circumference of the fixing hole 121, and then a plurality of pins are inserted into the through holes on the outer ring 142 of the slewing bearing 140 and the corresponding support frame 120 one by one through a plurality of pins. The two ends of the pin shaft can be limited by clips or fixed by spot welding, so that the outer ring 142 of the turntable bearing 140 can be fixedly connected to the support frame 120 .

In some embodiments, the plurality of fasteners 143 can be evenly distributed around the circumference of the fixing hole 121 , so that the entire force is evenly applied, and damage to the slewing bearing 140 and the support frame 120 due to excessive force locally is avoided.

The outer ring 142 of the slewing bearing 140 provided by the present disclosure may be disposed at different positions on the support frame 120, for example, may be disposed on the surface of the support frame 120 close to the rolling support portion 130 or on the surface away from the rolling support portion 130, Then, the outer ring 142 of the turntable bearing 140 and the support frame 120 can be fixedly connected by the above-mentioned fasteners 143; as shown in FIG. And coaxially disposed with the fixing hole 121 , as shown in FIGS. 5 and 6 , the outer ring 142 of the slewing bearing 140 is fixed in the groove 122 . Compared with fixing the outer ring 142 of the turntable bearing 140 on the side of the support frame 120, fixing the turntable bearing 140 in the groove 122 can prevent the turntable bearing 140 from protruding from the side of the support frame 120, thereby reducing the number of support frames. The overall thickness of 120 is conducive to the overall appearance.

It should be noted that the groove 122 is an annular structure and is coaxially arranged with the fixing hole 121 , which means that the groove 122 is arranged on the hole wall of the fixing hole 121 and extends around the fixing hole 121 to form an annular structure.

In some embodiments, as shown in FIG. 7 , FIG. 8 , and FIG. 9 , the groove 122 may extend along the axial direction of the fixing hole 121 and penetrate through the side wall of the support frame 120 , as shown in FIG. 10 , that is, the support frame 120 A concave structure is formed on the side wall of the fixed hole 121, and the concave structure and the fixing hole 121 communicate with each other. Compared with the groove 122 directly arranged on the hole wall of the fixing hole 121, this structure makes the installation of the slewing plate bearing 140 more convenient, which is beneficial to reduce the processing time. difficulty.

In some embodiments, as shown in FIGS. 4 and 11 , the drum 200 provided by the present disclosure includes a cylindrical body 210 and a driving disc 220 , and one end of the cylindrical body 210 and the driving disc 220 are both fixedly connected to the inner ring 141 of the slewing disc bearing 140 , the other end of the cylinder body 210 is in contact with the rolling support portion 130 , and a ring gear 230 is provided on the driving disc 220 , and the ring gear 230 is used for driving connection with the driving mechanism 300 . The driving mechanism 300 drives the ring gear 230 to rotate, so that the ring gear 230 can drive the drive disk 220 and the cylinder 210 to rotate, and at the same time drive the inner ring 141 of the turntable bearing 140 to rotate relative to the outer ring 142 , so that the entire drum 200 is relatively relative to the support frame 120 turn.

It should be pointed out that the drive disk 220 and the cylinder body 210 provided in the present disclosure are both coaxially disposed with the fixing hole 121 . Therefore, the overall structure is more compact and shaking is avoided.

In addition, the fixing method between the cylindrical body 210 , the driving disk 220 and the inner ring of the turntable bearing 140 is fixed by the above-mentioned fasteners 143 or by welding.

In some embodiments, the drive plate 220 and the cylinder 210 may be disposed on the side of the support frame 120 close to the rolling support portion 130 at the same time, and the drive mechanism 300 and the drive plate 220 may be disposed on the same side of the support frame 120 , so that The driving mechanism 300 can drive with the ring gear 230 on the driving disc 220 to drive the driving disc 220 and the cylinder 210 to rotate.

In some embodiments, as shown in FIG. 4 and FIG. 11 , the drive plate 220 and the cylinder 210 may also be respectively disposed on both sides of the support frame 120 and fixedly connected by fasteners 143 , and the drive plate 220 is disposed on the support frame 120 . The side away from the rolling support portion 130, therefore, the driving mechanism 300 is arranged at the corresponding position of the driving disk 220, that is, the side of the support frame 120 away from the rolling support portion 130; On the same side of the support frame 120, the drive plate 220 and the cylinder body 210 are respectively arranged on both sides of the support frame 120, so as to avoid the collision between the drive mechanism 300 and other components installed on the cylinder body 210, and prevent the cylinder body 210 from rotating, thereby preventing the cylinder body 210 from rotating. It makes the overall layout more reasonable.

As shown in FIG. 11 , the rolling support portion 130 provided by the present disclosure is a support wheel, the axis of the support wheel and the axis of the cylinder 210 are parallel to each other, and the end of the cylinder 210 away from the support frame 120 in the axial direction is in contact with the support wheel. The end of the cylinder 210 away from the support frame 120 is supported by the support wheel, so that the end of the cylinder 210 away from the support frame 120 and the base 110 can roll relative to each other, that is, when the cylinder 210 rotates, the distance between the cylinder 210 and the base 110 In pure rolling, the cylindrical body 210 drives the supporting wheel to rotate, so that the frictional force in the rolling contact area between the cylindrical body 210 and the supporting wheel is negligible, so that the cylindrical body 210 can rotate more easily.

For example, the support wheel is used as the rolling support part, the fixed shaft of the support wheel is the aforementioned fixed part, the wheel body of the support wheel is the aforementioned rotating part, and the wheel body of the support wheel can rotate relative to the fixed shaft, so the The fixed shaft is fixed on the side of the base 110 away from the support frame 120, and the fixed shaft is parallel to the axis of the cylinder 210, and the circumferential wall of the end of the cylinder 210 away from the drive plate 220 is in contact with the wheel body, so that the support wheel rises. To support the cylindrical body 210, and when the cylindrical body 210 rotates, the wheel body of the supporting wheel rotates around the fixed axis, which is beneficial to reduce the frictional force when the cylindrical body 210 rotates.

In some embodiments, as shown in FIG. 11 , at least one support wheel is respectively disposed on both sides of the axis of the cylinder 210 , and the support wheels located on both sides of the axis of the cylinder 210 are symmetrically arranged relative to the axis of the cylinder 210 . By arranging at least two support wheels symmetrically on the base 110, the support structure between the support wheels and the cylinder body 210 is more balanced, and the support is more stable.

It should be noted that, the number of support wheels on both sides of the axis of the cylinder body 210 may be equal or different, and therefore, the specific number is not limited.

In addition, the plurality of supporting wheels are distributed around the circumference of the cylindrical body 210 , that is, when the plurality of supporting wheels are fixed on the base 110 , they are distributed along the circumferential direction of the cylindrical body 210 , so that when the cylindrical body 210 is installed on the base 110 , each support wheel can abut with the cylinder body 210, so that the gravity of the cylinder body 210 can be distributed on a plurality of support wheels, each support wheel forms a support for the cylinder body 210, and further supports the cylinder body 210 by the supporting wheel of stability.

In some embodiments, the support wheel is a cam bearing, the cam shaft of the cam bearing is fixed on the base 110 , and the cylinder 210 is in contact with the cam bearing. The cam bearing is used as an auxiliary support, so that the cylindrical body 210 and the base 110 can roll relative to each other, thereby reducing the frictional force when the cylindrical body 210 rotates.

In some embodiments, an eccentric bushing is also provided between the outer ring and the inner ring of the cam bearing, and the contact between the outer ring of the cam bearing and the cylinder 210 can be adjusted by rotating, so as to control the distance between the cam bearing and the cylinder 210 . The contact stiffness further improves the stability of the cam bearing support cylinder 210 .

And, when the rigidity requirement is reached, the nut is tightened, and the anti-loosening mark is made for subsequent adjustment or maintenance.

In some embodiments, as shown in FIGS. 11 and 12 , the base 110 provided by the present disclosure may further be provided with support blocks 150 for installing cam bearings. The axes are arranged symmetrically, and at least one cam bearing is installed on each support block 150. By arranging the support block 150 on the base 110 and arranging the cam bearing on the support block 150, it is beneficial to increase the distance between the cylinder 210 and the ground. Therefore, when other components on the cylindrical body 210 are rotated to the lowest point, it can be prevented from colliding with the ground.

It should be pointed out that the function of the support block 150 is to raise the installation position of the cam bearing, thereby raising the cylinder body 210 to prevent other components on the cylinder body 210 from contacting the ground. Therefore, the support block 10 is fixed to the base 110 On the top surface of the side away from the support frame 120 , the cam bearing is disposed on the surface of the support block 150 facing the support frame 120 , and the shape of the support block 150 is not particularly limited.

In some embodiments, at least one cam bearing disposed on the same side of the axis of the cylinder body 210 may be set as a cam bearing with the same diameter and evenly distributed around the circumference of the cylinder body 210 , that is, a plurality of cam bearings form one cam bearing radian, and the radian is arranged concentrically with the cylinder body 210, so that each cam bearing can abut with the cylinder body 210; it can also be set as cam bearings with different diameters, that is, the diameters of multiple cam bearings gradually increase, and more The axes of the cam bearings can be on the same plane or on different planes, so that each cam bearing can abut the cylinder body 210 ; therefore, the multiple cam bearings only need to abut the cylinder body 210 respectively That is, the specifications and distribution of the cam bearings are not specifically limited here.

In order to prevent the drum 200 from rotating when the whole frame assembly is repaired, as shown in FIG. 12 , the frame assembly provided by the present disclosure is provided with a limit structure. The structure is used to prevent the rotation of the drum 200 relative to the base 110 . The rotation of the drum 200 can be prevented by the limiting structure, thereby facilitating maintenance of the frame assembly and other components on the drum 200 .

In some embodiments, the limiting structure can be disposed between the support frame 120 and the drive plate 220 to stop the rotation of the cylinder 210 by restricting the rotation of the drive plate 220; it can also be disposed between the cylinder 210 and the base 110, Directly restrict the rotation of the cylinder 210 to stop the rotation of the drive plate 220, thereby facilitating the maintenance of the equipment; compared with the limit structure disposed between the support frame 120 and the drive plate 220, the limit structure is disposed between the base 110 and the drive plate 220. Between the cylinder bodies 210, it is more beneficial to hide the limiting structure, which is beneficial to the overall appearance.

As shown in FIG. 12 , the limiting structure provided by the present disclosure includes a latch (not shown in the figure), a first limiting hole 211 formed on the cylinder body 210 and a second limiting hole 161 provided on the base 110 . The plug is used to be inserted into the first limiting hole 211 and the second limiting hole 161 . That is, when the drum 200 is rotated until the first limit hole 211 and the second limit hole 161 are in the corresponding positions, by inserting the two ends of the plug into the first limit hole 211 and the second limit hole 161 respectively, because the base 110 is fixed, therefore, the pin whose one end is inserted into the second limit hole 161 is also fixed, and when the other end of the pin is inserted into the first limit hole 211 on the drum 200, the drum 200 can be limited, thereby The drum 200 is made unable to rotate relative to the base 110 .

In some embodiments, the axes of the first limiting hole 211 and the axis of the second limiting hole 161 may form a certain angle. In this case, the latch needs to be composed of two parts forming an included angle with each other, so that when the first limiting hole 211 When in the position corresponding to the second limiting hole 161 , the two ends of the latch can be respectively inserted into the corresponding first limiting hole 211 and the second limiting hole 161 , thereby preventing the rotation of the drum 200 relative to the base 110 .

Specifically, the angle formed by the axes of the first limiting hole 211 and the second limiting hole 161 means that the axes of the first limiting hole 211 and the second limiting hole 161 cannot overlap, so the latch needs to be composed of two parts , when one part is inserted into the first limiting hole 211, the axis of the other part coincides with the second limiting hole 161, so that the other part can be inserted into the second limiting hole 161, so that the two ends of the plug can be inserted into the The first limiting hole 211 and the second limiting hole 161 form a limiting position for the drum 200 .

In some embodiments, as shown in FIG. 12 , the axes of the first limiting hole 211 and the second limiting hole 161 may also be arranged parallel to the axis of the drum 200 , and along a section perpendicular to the axis of the drum 200 , The axes of the first limit hole 211 and the second limit hole 161 are located on the same circumference. Under this structure, the plug can adopt a straight rod structure. When the first limit hole 211 and the second limit hole 161 are in the In the corresponding position, the plug can be inserted into the first limit hole 211 and the second limit hole 161 in sequence. Compared with the structure that forms an angle, the plug in this structure can be replaced by any straight rod structure. It is more versatile, and when inserting the latch, it is easier and more convenient.

It should be pointed out that the parts of the straight rod structure proposed in the present disclosure need to use parts with strong rigidity, and cannot use flexible materials, that is, parts that can withstand large forces without being bent or broken.

In addition, the fact that the first limit hole 211 and the second limit hole 161 are in corresponding positions means that both ends of the plug can be inserted into the first limit hole 211 and the second limit hole 161 at the same time, so that the plug can restrict The cylinder 210 rotates relative to the base 110 . Exemplarily, in the solution in which the axes of the first limiting hole 211 and the second limiting hole 161 are both parallel to the axis of the drum 200, the corresponding positions of the first limiting hole 211 and the second limiting hole 161 refer to the At the position where the axis of the first limiting hole 211 coincides with the axis of the second limiting hole 161 , the plug can be inserted into the first limiting hole 211 and the second limiting hole 161 in sequence.

In some embodiments, as shown in FIG. 12 , a protrusion 160 is provided on the top surface of the base 110 on the side away from the support frame 120 , and the second limiting hole 161 is opened on the protrusion 160 . The second limiting hole 161 is directly opened on the base 110. After the protrusions 160 are provided, the height of the second limiting hole 161 increases, which can prevent the roller 200 from being set too low, causing other components on the roller 200 (such as the treatment head) Contact with the ground; and the thickness of the protrusion 160 does not need to be set too thick, so that the processing difficulty of opening the second limiting hole 161 can be reduced.

In some embodiments, as shown in FIG. 12 , a plurality of first limiting holes 211 are formed on the end surface of the cylinder body 210 away from the driving disk 220 , and the plurality of first limiting holes 211 are distributed around the circumference of the cylinder body 210 . By arranging a plurality of first limit holes 211, when the cylinder body 210 needs to be locked, it is only necessary to rotate the first limit hole 211 on the cylinder body 210 closest to the second limit hole 161 to a corresponding position, It is beneficial to reduce the angle of rotation, and the operation is more convenient.

The present disclosure also provides a treatment device. As shown in FIG. 11 , the treatment device includes the above-mentioned frame assembly, a driving mechanism 300 and a treatment head (not shown in the figure). The treatment head is arranged on the cylinder body 210 and the machine The support frame 120 of the frame assembly is disposed at the front end of the treatment device. Since the treatment device includes the above-mentioned frame assembly and the driving mechanism 300 , the same technical problem can be solved and the same technical effect can be achieved, which will not be described in detail here.

In the radiotherapy equipment provided in the related art, friction wheels are provided on both ends of the base 110 along the axial direction of the drum 200, the drum 200 is supported by the friction wheels on both sides of the drum 200, and the driving mechanism 300 drives the drum 200 on both sides. The friction wheel at the end rotates to drive the drum 200 to rotate. Since the driving mechanism 300 needs to drive the friction wheels on both sides of the drum 200 to rotate at the same time, the driving mechanism 300 in the related art is generally arranged in the middle position of the drum 200 along the axial direction, and then drives The mechanism 300 is connected with the friction wheels on both sides through a long drive shaft, so that the driving mechanism 300 drives the friction wheels on both sides to rotate at the same time, and drives the drum 200 to rotate.

However, since the driving mechanism 300 is arranged in the middle position, when the drum 200 rotates, other components on the drum 200 may collide with the driving mechanism 300 and collide with each other, and the overall structure is unreasonable.

In the treatment device provided by the present disclosure, as shown in FIG. 11 , the driving mechanism 300 is drivingly connected to the ring gear 230 provided on the driving disc 220 , that is, the driving mechanism 300 is only drivingly connected to one end of the drum 200 . Therefore, the driving mechanism 300 can be It is arranged on the end of the drum 200 where the driving disc 220 is arranged, so as to avoid the collision between the driving mechanism 300 and other components on the drum 200, and the driving mechanism 300 can be arranged at a position closer to the ring gear 230 without passing the transmission shaft. connection so as to avoid reducing the transmission efficiency.

In addition, the drive mechanism 300 and the friction wheel are connected by a long drive shaft, which will affect the transmission efficiency, and the positioning error of the friction wheel transmission is relatively large, which will cause movement along the axial direction of the drum 200 during support, affecting the speed of the drum 200. Turning accuracy.

In the treatment device provided by the present disclosure, one end of the roller 200 is rotatably connected to the fixing hole 121 on the support frame 120 through the turntable bearing 140, and the other end of the roller 200 is in contact with the cam bearing (ie, the rolling support portion 130) on the base 110. The turntable bearing 140 is used as the main support, and the plurality of cam bearings are used as auxiliary supports. Since the cylindrical body 210, the drive plate 220 and the inner ring 141 of the turntable bearing 140 are fixedly connected, the cylindrical body 210 can be prevented from moving in the axial direction when it rotates, and The cylinder body 210 is supported by the cam bearing, and the friction force of the area in rolling contact with the cam bearing when the cylinder body 210 rotates is negligible, so that when the drum 200 rotates as a whole, the resistance is small and the rotation is easier and more convenient.

As shown in FIG. 13 , the driving mechanism 300 provided by the present disclosure includes a motor 310 and a transmission member. The output shaft of the motor 310 is fixedly connected with the transmission gear 320 , and the transmission gear 320 meshes with the ring gear 230 . The motor 310 drives the ring gear 230 to rotate through the transmission member, so that the drive plate 220 rotates and drives the cylinder 210 to rotate together, so that the rotation angle of the cylinder 210 can be controlled by starting and stopping the motor 310 .

Moreover, using the transmission gear 320 to transmit the torque has the advantages of accurate transmission, high efficiency, compact structure, reliable operation and long service life.

In some embodiments, the driving mechanism 300 provided by the present disclosure may be disposed on the side of the base 110 close to the support frame 120 , or may be disposed on the side wall of the support frame 120 , or any other position close to the ring gear 230 . The specific position of the driving mechanism 300 is not limited herein.

In order to reduce the rotation speed of the drum 200 , as shown in FIG. 13 , a deceleration mechanism 400 is further provided between the motor 310 and the transmission member provided by the present disclosure, and the output shaft of the motor 310 is connected with the input shaft of the deceleration mechanism 400 . The output shaft is in driving connection with the transmission part. The speed reduction mechanism 400 can reduce the rotational speed output by the output shaft of the motor 310 , so as to reduce the rotational speed of the drum 200 , thereby controlling the rotation angle of the drum 200 more precisely.

In some embodiments, as shown in FIG. 13 , the reduction mechanism 400 provided by the present disclosure may have the following structure, including a first reduction gear 410 , the output shaft of the motor 310 is connected with the input shaft of the first reduction gear 410 , the first reduction gear The output shaft of the machine 410 is connected with the transmission member. The first speed reducer 410 is arranged between the motor 310 and the transmission gear 320 to reduce the rotation speed of the output shaft of the motor 310, so that the rotation speed of the transmission member is smaller, and then the transmission member drives the ring gear 230 to rotate, so that the drive plate 220 and the The cylinder 210 rotates together. Since the rotation speed of the output shaft of the first reducer 410 is relatively low, the rotation speed of the ring gear 230 is reduced, thereby reducing the rotation speed of the drive disk 220 and the cylinder 210, which facilitates precise control of the rotation of the drum 200. angle.

In some embodiments, as shown in FIG. 14 , the deceleration mechanism 400 provided by the present disclosure may also have the following structure, including a second decelerator 420 and a third decelerator 430 , and the output shaft of the motor 310 and the second decelerator 420 The input shaft is connected, the output shaft of the second reducer 420 is drivingly connected with the input shaft of the third reducer 430 through the transmission assembly 440, and the output shaft of the third reducer 430 is drivingly connected with the transmission member. Two speed reducers are arranged between the motor 310 and the transmission gear 320, that is, the rotational speed output by the motor 310 is decelerated twice and then transmitted to the transmission member, thereby further reducing the rotational speed of the transmission gear 320, that is, reducing the speed of the drive plate 220 and the The rotation speed of the cylinder 210 is beneficial to further improve the control precision of the rotation angle of the drum 200 .

In some embodiments, the transmission assembly 440 provided by the present disclosure may have the following structure, as shown in FIG. 14 , which includes a first pulley 441 connected with the output shaft of the second reducer 420 , and a third reducer 430 . The input shaft is connected to the second pulley 442, and the first pulley 441 and the second pulley 442 are connected by a second transmission belt 443 in a driving manner. A belt drive is used to transmit torque between the second reducer 420 and the third reducer 430, and the belt drive has the advantages of stable transmission, simple structure, low cost, and convenient maintenance.

In some embodiments, the transmission assembly 440 provided by the present disclosure may also have the following structure, which includes a first sprocket connected to the output shaft of the second reducer 420 , and a first sprocket connected to the input shaft of the third reducer 430 . Two sprockets, the first sprocket and the second sprocket are connected by chain transmission. Torque is transmitted between the second reducer 420 and the third reducer 430 by means of chain transmission. The chain transmission has the advantages of five elastic sliding and slipping phenomena, accurate average transmission ratio, reliable operation, high efficiency and high transmission power.

In some embodiments, as shown in FIG. 14 , a brake 330 is provided on the output shaft of the motor 310 . The output shaft of the motor 310 can be stopped in time by the brake 330. For example, when the frame assembly is braked urgently, the motor 310 is disabled and the torque output is stopped. However, the drum 200 tends to continue to rotate under the action of inertia. At this time, the brake 330 exerts a directional torque on the output shaft of the motor 310, so that the reducer cannot continue to rotate, that is, the transmission gear 320 cannot continue to rotate, thereby stopping the rotation of the drum 200.

It should be noted that the front end of the treatment device mentioned in the present disclosure refers to the side close to the treatment bed, that is, the patient lies on the treatment bed and moves from the front end of the treatment device to the treatment cavity of the treatment device.

In the treatment device provided by the present disclosure, as shown in FIG. 15 , a first slip ring 240 is disposed on the surface of the drive plate 220 away from the support frame 120 . The first slip ring 240 is coaxially disposed with the fixing hole 121 on the support frame 120 A first brush 170 is provided, and the first brush 170 is in contact with the first slip ring 240 . By arranging the slip ring on the surface of the drive disk 220 away from the support frame 120 , that is, the slip ring is arranged on the front end of the rack assembly, so that when the equipment is maintained or repaired, the personnel who maintain the slip ring can The maintenance at the front end will not conflict with the staff who repair other electrical components at the rear side of the rack 100 , so that the rear side has a larger maintenance space.

In some embodiments, a second slip ring (not shown in the figure) may also be disposed on the rear end surface of the drum 200, and a second brush may be disposed on the base 110, and the second brush abuts against the second slip ring. Slip rings are provided at both ends of the drum 200, and electrical signals can be transmitted through the two slip rings respectively, or when one slip ring fails, the other slip ring can be used to transmit electrical signals, thereby ensuring the normal operation of the equipment.

In some embodiments, the driving mechanism 300 is electrically connected to the first brush 170 , that is, when two slip rings are provided, the first brush 170 and the first slip ring 240 transmit electrical signals.

The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical scope disclosed in the present disclosure, think of changes or replacements, should cover within the scope of protection of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

A rack assembly comprising:

a frame, the frame includes a base, a support frame is fixed on one side of the base, a fixing hole is opened on the support frame, and a rolling support part is fixed on the other side of the base;

A drum, one end of the drum is rotatably disposed in the fixing hole, and the other end of the drum is in contact with the rolling support portion.
The frame assembly according to claim 1, wherein the frame further comprises a turntable bearing, the drum is rotatably arranged in the fixing hole through the turntable bearing, and the outer ring of the turntable bearing is connected to the support The frame is fixedly connected, and the inner ring of the turntable bearing is fixedly connected with the drum.
The frame assembly according to claim 2, wherein the outer ring of the turntable bearing and the support frame are fixedly connected by fasteners; and/or

The inner ring of the slewing plate bearing and the drum are fixedly connected by fasteners.
The rack assembly according to claim 3, wherein a groove is formed on the inner wall of the fixing hole, the groove is an annular structure and is coaxial with the fixing hole, and the outer ring of the slewing bearing is fixed in the groove.
The frame assembly according to any one of claims 2 to 4, wherein the drum comprises a cylindrical body and a driving disc, and one end of the cylindrical body and the driving disc are both fixedly connected to the inner ring of the slewing disc bearing , the other end of the cylindrical body is in contact with the rolling support portion, and a ring gear is arranged on the driving disk, and the ring gear is used for driving connection with the driving mechanism.
The rack assembly according to claim 5, wherein the drive plate and the cylinder are respectively disposed on two sides of the support frame, the drive plate, the inner ring of the turntable bearing and the cylinder The connection is fixed by means of fasteners.
The frame assembly according to any one of claims 1 to 6, wherein the rolling support part is a support wheel, the axis of the support wheel and the axis of the drum are parallel to each other, and the drum is far away from the support frame One end is in contact with the support wheel.
The frame assembly according to claim 7, wherein at least one of the support wheels is respectively provided on both sides of the axis of the drum, and the support wheels located on both sides of the axis of the drum are arranged symmetrically with each other.
The frame assembly according to claim 7, wherein the supporting wheel is a cam bearing, a cam shaft of the cam bearing is fixed on the base, and the roller is in abutment with the cam bearing.
The frame assembly of claim 9, wherein an eccentric bushing is provided between the outer ring and the inner ring of the cam bearing.
The frame assembly according to any one of claims 1 to 10, wherein a limiting structure is provided between the base and the drum, and the limiting structure is used to prevent the drum from rotating relative to the base.
The rack assembly according to claim 11, wherein the limiting structure comprises a pin, a first limiting hole formed on the drum, and a second limiting hole provided on the base, the pin for inserting into the first limiting hole and the second limiting hole.
The rack assembly according to claim 12, wherein a protrusion is provided on the base, the protrusion is provided on a side of the base away from the support frame, and the second limiting hole is opened in the On the protrusion, the first limit hole is opened on the end surface of the drum away from the support frame, and the axes of the first limit hole and the second limit hole are parallel to the axis of the drum. axis, and along a section perpendicular to the axis of the drum, the axes of the first limiting hole and the second limiting hole are located on the same circumference.
A therapeutic device comprising:

A rack assembly, the rack assembly is the rack assembly according to any one of claims 1 to 13;

The treatment head is arranged on the roller;

The driving mechanism is used for driving the drum to rotate.