A treatment bed revolution structure and accelerator treatment bed

Abstract

The present invention discloses a therapeutic bed revolution structure and an accelerator therapeutic bed, the therapeutic bed revolution structure comprises: a base, a bed mounting plate, a slewing bearing, a power assembly and a power transmission assembly, the slewing bearing is arranged between the base and the bed mounting plate, one side of the slewing bearing is fixedly connected to the base, and the other side thereof is slidably connected to the bed mounting plate through a transmission medium and a power transmission assembly, and relative rotation can occur between the slewing bearing and the bed mounting plate; the power assembly is used to provide a driving force for the bed mounting plate and the slewing bearing to rotate relative to each other; the power input end of the power transmission assembly is transmission-connected to the power output end of the power assembly, and the power output end of the power transmission assembly is fixedly connected to the bed mounting plate. The present invention adopts a slewing bearing to realize the revolution and rotation function, and under the condition of ensuring accuracy, one side of the slewing bearing is installed with the base, and the other side is installed with the bed mounting plate, so that the installation is more convenient, the time consumption is shorter, and the structure is more reliable.

Description

Technical Field

[0001] The invention belongs to the field of medical equipment of accelerator radiation therapy beds, and in particular relates to a therapy bed revolution structure and an accelerator therapy bed. Background Art

[0002] The accelerator treatment bed is an important part of the accelerator, and it is an accelerator treatment platform. The treatment bed revolution assembly is an indispensable part of its dynamic treatment. Existing accelerator revolutions are mostly in the form of a combination of a central rotating shaft and a track wheel. The central rotating shaft and the circumferential track wheel are formed by casting, and the track surface requires quenching and other processes. At the same time, the roller installation of the cast track requires very high precision to ensure the smoothness and accuracy of the rotation.

[0003] The existing technology requires more advanced assembly and manufacturing processes. Moreover, its mass production cost is high and is not suitable for large-scale promotion. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes a treatment bed revolution structure and an accelerator treatment bed.

[0005] In order to achieve the above object, the technical solution of the present invention is as follows:

[0006] On the one hand, the present invention discloses a treatment bed revolution structure, comprising: a base and a bed mounting plate, and also comprising:

[0007] The slewing bearing is arranged between the base and the bed mounting plate, one side of the slewing bearing is fixedly connected to the base, and the other side thereof is slidably connected to the bed mounting plate through a transmission medium and a power transmission component, and the slewing bearing and the bed mounting plate can rotate relative to each other;

[0008] A power assembly, used to provide a driving force for the bed mounting plate and the slewing bearing to rotate relative to each other;

[0009] A power transmission component, wherein the power input end of the power transmission component is drivingly connected to the power output end of the power component, and the power output end of the power transmission component is fixedly connected to the bed mounting plate.

[0010] On the basis of the above technical solution, the following improvements can be made:

[0011] As a preferred solution, the transmission medium can be a transmission belt, a chain or a gear.

[0012] As a preferred solution, one end of the transmission medium is fixed by a first transmission belt fixing plate, then passes around the power transmission component, and the other end is fixed by a second transmission belt fixing plate;

[0013] The first conveyor belt fixing plate and the second conveyor belt fixing plate are respectively fixedly connected to the bed mounting plate.

[0014] As a preferred solution, the first conveyor belt fixing plate and the second conveyor belt fixing plate are symmetrically arranged.

[0015] As a preferred solution, the power transmission assembly includes: a power transmission mounting plate and a first transmission wheel, a second transmission wheel, a third transmission wheel, a first idler wheel assembly and a second idler wheel assembly arranged on the power transmission mounting plate;

[0016] The first transmission wheel is coaxially arranged with the second transmission wheel, and the first transmission wheel is transmission-connected to the power output end of the power assembly through a third transmission belt;

[0017] One end of the transmission medium is fixed by the first transmission belt fixing plate, and then passes through the second transmission wheel, the first idler wheel assembly, the second idler wheel assembly, and the third transmission wheel in sequence, and the other end is fixed by the second transmission belt fixing plate.

[0018] As a preferred solution, an encoder is also installed on the rotating shaft of the third transmission wheel.

[0019] As a preferred solution, the bed mounting plate is provided with a first mounting groove and a second mounting groove which are symmetrically arranged, and a first annular groove and a second annular groove which are symmetrically arranged;

[0020] The first placement groove is used to place the first conveyor belt fixing plate;

[0021] The first annular groove is used to accommodate a section of the transmission medium from the first transmission belt fixing plate to the second transmission wheel;

[0022] The second placement groove is used to place the second conveyor belt fixing plate;

[0023] The second annular groove is used to accommodate a section of the transmission medium from the second transmission belt fixing plate to the third transmission wheel.

[0024] As a preferred solution, the power assembly includes: a power assembly mounting plate, and a motor, a fourth transmission wheel, a fifth transmission wheel, a sixth transmission wheel, a seventh transmission wheel, an eighth transmission wheel, a clutch and a brake arranged on the power assembly mounting plate;

[0025] The motor output shaft is coaxially arranged with the fourth transmission wheel;

[0026] The fourth transmission wheel is connected to the fifth transmission wheel through the first transmission belt;

[0027] The fifth transmission wheel, the clutch and the sixth transmission wheel are coaxially arranged;

[0028] The sixth transmission wheel is connected to the seventh transmission wheel through the second transmission belt;

[0029] The brake, the seventh transmission wheel and the eighth transmission wheel are coaxially arranged;

[0030] The eighth transmission wheel is transmission-connected with the first transmission wheel via the third transmission belt.

[0031] As a preferred solution, the base is an annular structure, the power assembly is arranged in the inner circular through hole of the base, and the power transmission assembly is arranged on the outside of the base;

[0032] Alternatively, the power assembly mounting plate of the power assembly and the power transmission mounting plate of the power transmission assembly are an integrated structure, and the power assembly and the power transmission assembly are both arranged on the outside of the base.

[0033] On the other hand, the present invention also discloses an accelerator treatment couch, comprising any one of the above treatment couch revolution structures.

[0034] The therapeutic bed revolution structure and accelerator therapeutic bed of the present invention have the following beneficial effects:

[0035] The present invention uses a slewing bearing to realize the revolution and rotation functions. Under the condition of ensuring accuracy, one side of the slewing bearing is installed with the base, and the other side is installed with the bed mounting plate;

[0036] In terms of installation technology, as long as the coaxiality requirements of the slewing bearing installation surface are met, the installation accuracy can be guaranteed.

[0037] In terms of installation time, it only takes 1 / 5 of the time of the existing technology that uses a combination of a central rotating shaft and a track wheel to complete the overall assembly, which takes less time and also saves process time such as heat treatment during the manufacturing stage.

[0038] In terms of structural reliability, the slewing bearing is a mature structural component with higher precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 This is a schematic structural diagram of the revolution structure of the treatment bed provided in an embodiment of the present invention.

[0041] Figure 2 This is a schematic structural diagram of the treatment bed revolution structure provided by an embodiment of the present invention with the bed mounting plate removed.

[0042] Figure 3 for Figure 2 Enlarged view of part A in the middle.

[0043] Figure 4 for Figure 2Enlarged view of part B in the middle.

[0044] Figure 5 A schematic structural diagram of a power transmission assembly provided in an embodiment of the present invention.

[0045] Figure 6 A schematic diagram of the structure of a power assembly provided in an embodiment of the present invention.

[0046] Among them: 1-base, 2-bed mounting plate, 3-slewing bearing, 4-power assembly, 40-power assembly mounting plate 40, 41-motor, 42-clutch, 43-brake, 44-fourth transmission wheel, 45-fifth transmission wheel, 46-sixth transmission wheel, 47-seventh transmission wheel, 48-eighth transmission wheel, 5-power transmission assembly, 50-power transmission mounting plate, 51-first transmission wheel, 52-second transmission wheel, 53-third transmission wheel, 54-first idler assembly, 55-second idler assembly, 56 encoder, 6-transmission belt, 7-first transmission belt fixing plate, 8-second transmission belt fixing plate, 91-first transmission belt, 92-second transmission belt. DETAILED DESCRIPTION

[0047] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] like Figure 1-4 As shown, an embodiment of the present invention discloses a treatment bed revolution structure, including: a base 1, a bed mounting plate 2, a slewing bearing 3, a power assembly 4 and a power transmission assembly 5.

[0050] The slewing bearing 3 is arranged between the base 1 and the bed mounting plate 2. One side of the slewing bearing 3 is fixedly connected to the base 1, and the other side thereof is slidably connected to the bed mounting plate 2 through a transmission medium and a power transmission component 5. The slewing bearing 3 and the bed mounting plate 2 can rotate relative to each other.

[0051] The power assembly 4 is used to provide a driving force for the bed mounting plate 2 and the slewing bearing 3 to rotate relative to each other;

[0052] The power input end of the power transmission component 5 is transmission-connected to the power output end of the power component 4 , and the power output end of the power transmission component 5 is fixedly connected to the bed mounting plate 2 .

[0053] In order to further optimize the implementation effect of the present invention, in some other embodiments, the other characteristic technologies are the same, the difference is that the transmission medium is a transmission belt 6, and the transmission belt 6 can be made of radiation-proof material, which is a material with strong weather resistance.

[0054] like Figure 5 As shown, the above embodiment is further optimized, one end of the conveyor belt 6 is fixed by the first conveyor belt fixing plate 7, and then passes around the power transmission component 5, and the other end is fixed by the second conveyor belt fixing plate 8;

[0055] The first conveyor belt fixing plate 7 and the second conveyor belt fixing plate 8 are fixedly connected to the bed mounting plate 2 respectively.

[0056] The first conveyor belt fixing plate 7 and the second conveyor belt fixing plate 8 are symmetrically arranged.

[0057] The power transmission assembly 5 includes: a power transmission mounting plate 50 and a first transmission wheel 51, a second transmission wheel 52, a third transmission wheel 53, a first idler wheel assembly 54 and a second idler wheel assembly 55 arranged on the power transmission mounting plate 50;

[0058] The first transmission wheel 51 and the second transmission wheel 52 are coaxially arranged, and the first transmission wheel 51 is transmission-connected to the power output end of the power assembly 4 through a third transmission belt;

[0059] After one end of the transmission belt 6 is fixed by the first transmission belt fixing plate 7, it passes through the second transmission wheel 52, the first idler wheel assembly 54, the second idler wheel assembly 55, and the third transmission wheel 53 in sequence, and the other end thereof is fixed by the second transmission belt fixing plate 8.

[0060] The above-mentioned detour method of the conveyor belt 6 can prevent the meshing teeth of the conveyor belt 6 from contacting the bed mounting plate 2, thereby increasing the service life of the conveyor belt 6.

[0061] The power transmission assembly 5 ensures the wrap angle requirement of the synchronous belt transmission. Meanwhile, the first idler assembly 54 and the second idler assembly 55 are adjustable. The gap of the transmission belt 6 can be adjusted through the idler assembly to ensure good accuracy.

[0062] The power transmission mounting plate 50 can be installed on the base 1 but is not limited to being installed.

[0063] To further optimize the above embodiment, an encoder 56 is also installed on the rotating shaft of the third transmission wheel 53. The encoder 56 provides position feedback for control, and the rotation angle can be known in time.

[0064] To further optimize the above embodiment, a first placement groove (not shown in the figure) and a second placement groove (not shown in the figure) are symmetrically arranged on the bed mounting plate 2, as well as a first annular groove (not shown in the figure) and a second annular groove (not shown in the figure) are symmetrically arranged;

[0065] The first placement groove is used to place the first conveyor belt fixing plate 7;

[0066] The first annular groove is used to accommodate a section of the conveyor belt 6 from the first conveyor belt fixing plate 7 to the second conveyor wheel 52;

[0067] The second placement groove is used to place the second conveyor belt fixing plate 8;

[0068] The second annular groove is used to accommodate a section of the conveyor belt 6 from the second conveyor belt fixing plate 8 to the third conveyor wheel 53 .

[0069] like Figure 6 As shown, the above embodiment is further optimized, the power assembly 4 includes: a power assembly mounting plate 40 and a motor 41, a fourth transmission wheel 44, a fifth transmission wheel 45, a sixth transmission wheel 46, a seventh transmission wheel 47, an eighth transmission wheel 48, a clutch 42 and a brake 43 arranged on the power assembly mounting plate 40;

[0070] The output shaft of the motor 41 is coaxially arranged with the fourth transmission wheel 44;

[0071] The fourth transmission wheel 44 is transmission-connected to the fifth transmission wheel 45 via the first transmission belt 91;

[0072] The fifth transmission wheel 45, the clutch 42 and the sixth transmission wheel 46 are coaxially arranged;

[0073] The sixth transmission wheel 46 is transmission-connected to the seventh transmission wheel 47 via the second transmission belt 92;

[0074] The brake 43, the seventh transmission wheel 47 and the eighth transmission wheel 48 are coaxially arranged;

[0075] The eighth transmission wheel 48 is transmission-connected to the first transmission wheel 51 via a third transmission belt (not shown in the figure).

[0076] The power assembly 4 provides power for the revolving structure of the present invention, and also provides a braking force for maintaining the state thereof, and also provides a clutch 42 for the structure in manual mode.

[0077] To further optimize the above embodiment, the base 1 is an annular structure, the power assembly 4 is arranged in the inner circular through hole of the base 1, and the power transmission assembly 5 is arranged outside the base 1. This arrangement ensures the convenience of maintenance.

[0078] Of course, in other embodiments, the power assembly mounting plate 40 of the power assembly 4 and the power transmission mounting plate 50 of the power transmission assembly 5 can be an integrated structure, and the power assembly 4 and the power transmission assembly 5 are both arranged on the outside of the base 1. In addition, the power assembly mounting plate 40 and the power transmission mounting plate 50 can be arranged parallel to the base 1, vertically, or at an angle (0° to 90°), and can be adjusted according to specific actual conditions. Regardless of the arrangement form, it is within the protection scope of the present invention.

[0079] In order to further optimize the implementation effect of the present invention, in some other embodiments, the remaining characteristic technologies are the same, except that the transmission medium can be a chain or a gear.

[0080] On the other hand, an embodiment of the present invention further discloses an accelerator treatment couch, including the treatment couch revolution structure involved in any of the above embodiments.

[0081] The therapeutic bed revolution structure and accelerator therapeutic bed of the present invention have the following beneficial effects:

[0082] The present invention uses a slewing bearing 3 to realize the revolution and rotation function. Under the condition of ensuring accuracy, one side of the slewing bearing 3 is installed with the base 1, and the other side is installed with the bed mounting plate 2;

[0083] In terms of installation technology, as long as the coaxiality requirement of the installation surface of the slewing bearing 3 is met, the installation accuracy can be guaranteed.

[0084] In terms of installation time, it only takes 1 / 5 of the time of the existing technology that uses a combination of a central rotating shaft and a track wheel to complete the overall assembly, which takes less time and also saves process time such as heat treatment during the manufacturing stage.

[0085] In terms of structural reliability, the slewing bearing 3 is a mature structural component with higher precision.

[0086] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable ordinary technicians in the field to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A treatment bed revolution structure, comprising: The base and the bed mounting plate are characterized by further comprising: A slewing bearing is arranged between the base and the bed mounting plate, one side of the slewing bearing is fixedly connected to the base, and the other side of the slewing bearing is slidably connected to the bed mounting plate through a transmission medium and a power transmission component, and the slewing bearing and the bed mounting plate can rotate relative to each other; A power assembly, used to provide a driving force for the bed mounting plate and the slewing bearing to rotate relative to each other; A power transmission assembly, wherein the power input end of the power transmission assembly is drivingly connected to the power output end of the power assembly, and the power output end of the power transmission assembly is fixedly connected to the bed mounting plate; One end of the transmission medium is fixed by a first transmission belt fixing plate, then passes around the power transmission assembly, and the other end thereof is fixed by a second transmission belt fixing plate; The first conveyor belt fixing plate and the second conveyor belt fixing plate are respectively fixedly connected to the bed mounting plate; The first conveyor belt fixing plate and the second conveyor belt fixing plate are symmetrically arranged; The power transmission assembly comprises: a power transmission mounting plate and a first transmission wheel, a second transmission wheel, a third transmission wheel, a first idler wheel assembly and a second idler wheel assembly arranged on the power transmission mounting plate; The first transmission wheel is coaxially arranged with the second transmission wheel, and the first transmission wheel is transmission-connected to the power output end of the power assembly through a third transmission belt; After one end of the transmission medium is fixed by the first transmission belt fixing plate, it passes through the second transmission wheel, the first idler wheel assembly, the second idler wheel assembly, and the third transmission wheel in sequence, and the other end thereof is fixed by the second transmission belt fixing plate.

2. The treatment bed revolution structure according to claim 1, characterized in that: The transmission medium can be a transmission belt or a chain.

3. The treatment bed revolution structure according to claim 1, characterized in that: An encoder is also installed on the rotating shaft of the third transmission wheel.

4. The treatment bed revolution structure according to claim 1, characterized in that: The bed mounting plate is provided with a first mounting groove and a second mounting groove which are symmetrically arranged, and a first annular groove and a second annular groove which are symmetrically arranged; The first placement groove is used to place the first conveyor belt fixing plate; The first annular groove is used to accommodate a section of the transmission medium from the first transmission belt fixing plate to the second transmission wheel; The second placement groove is used to place the second conveyor belt fixing plate; The second annular groove is used to accommodate a section of the transmission medium from the second transmission belt fixing plate to the third transmission wheel.

5. The treatment bed revolution structure according to any one of claims 1 to 4, characterized in that: The power assembly includes: a power assembly mounting plate, and a motor, a fourth transmission wheel, a fifth transmission wheel, a sixth transmission wheel, a seventh transmission wheel, an eighth transmission wheel, a clutch and a brake arranged on the power assembly mounting plate; The motor output shaft is coaxially arranged with the fourth transmission wheel; The fourth transmission wheel is transmission-connected to the fifth transmission wheel via a first transmission belt; The fifth transmission wheel, the clutch and the sixth transmission wheel are coaxially arranged; The sixth transmission wheel is transmission-connected to the seventh transmission wheel via a second transmission belt; The brake, the seventh transmission wheel and the eighth transmission wheel are coaxially arranged; The eighth transmission wheel is transmission-connected to the first transmission wheel via a third transmission belt.

6. The treatment bed revolution structure according to claim 5, characterized in that: The base is an annular structure, the power assembly is arranged in the inner circular through hole of the base, and the power transmission assembly is arranged on the outer side of the base; Alternatively, the power assembly mounting plate of the power assembly and the power transmission mounting plate of the power transmission assembly are an integrated structure, and the power assembly and the power transmission assembly are both arranged on the outside of the base.

7. Accelerator treatment bed, characterized in that: It comprises the treatment bed revolution structure as described in any one of claims 1-6.

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