A tooling for mounting a static ct ray source

Abstract

The utility model discloses a tool for installing static CT ray source, including stacker truck, moving assembly, insert arm and rotation subassembly. Among them, the stacker truck includes the lifting plate, and moving assembly is connected with the lifting plate. Moving assembly includes the slide platform, and insert arm is connected with the slide platform. Insert arm includes insert arm mounting plate, and rotation subassembly is connected with insert arm mounting plate. The tool provided by the utility model is based on the stacker truck, and integrates hydraulic lifting mechanism, lead screw sliding rail and speed reducer, can carry, lift and rotate the ray source, makes it align the installation position. Reduced the risk of falling that manual carrying brought, improved the installation quality and labor quantity simultaneously.

Description

Technical Field

[0001] This utility model relates to a fixture for installing a static CT radiation source, belonging to the field of medical device technology. Background Technology

[0002] In CT equipment, the X-ray source consists of an X-ray tube and a fuel tank, which are mounted on the scanning gantry. For static CT, the X-ray sources are evenly distributed along the circumference, and there are many of them, resulting in very limited installation space. At the same time, the X-ray tube and fuel tank are quite heavy, making the installation and removal of the X-ray sources extremely inconvenient and resulting in low work efficiency.

[0003] Chinese patent application number 202111341500.8 discloses an installation device for a CT X-ray tube. This technical solution includes a lifting mechanism, a lifting platform, a fixing plate, a rotating mechanism, a clamping mechanism, and an X-ray tube placement frame. The lifting platform is mounted on the lifting mechanism, the fixing plate is mounted on the lifting platform, the clamping mechanism is mounted on the X-ray tube placement frame, the rotating mechanism is mounted on the fixing plate, and the X-ray tube placement frame is mounted on the rotating mechanism. The lifting mechanism drives the lifting platform and the X-ray tube placement frame to rise and fall to a suitable height. After reaching a suitable height, the rotating mechanism drives the X-ray tube placement frame to rotate, allowing the X-ray tube placement frame to reach any angle installation position on the scanning frame.

[0004] Similarly, existing CT installation tools lack lateral adjustment freedom. The X-ray source, including the X-ray tube, oil tank, voltage booster plate, and insulating oil, weighs approximately 35 kg. The clamping mechanism in existing technologies is offset to one side of the lifting platform, posing a risk of tipping over. Furthermore, the installation equipment is too long, requiring more installation space. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a tooling for installing a static CT radiation source.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] According to an embodiment of the present invention, a fixture for installing a static CT radiation source is provided, comprising a stacker, a moving assembly, an insert arm, and a rotating assembly; wherein,

[0008] The stacker truck includes a lifting platform, and the moving component is connected to the lifting platform;

[0009] The movable component includes a slide table, and the insert arm is connected to the slide table;

[0010] The insert arm includes an insert arm mounting plate, and the rotating assembly is connected to the insert arm mounting plate.

[0011] Preferably, the stacker truck further includes a mast, directional wheels, casters, and a hydraulic system; wherein...

[0012] The gantry is a frame-like support structure. The directional wheel is located at one end of the gantry near the rotating component, and the omnidirectional wheel is located at the other end of the gantry. The hydraulic system is located inside the gantry and is connected to the lifting plate via a chain.

[0013] Preferably, the moving component further includes a slide rail, a bearing, a lead screw, and a moving handle; wherein,

[0014] Multiple slide rails are disposed on the lifting plate, extending along the X direction and spaced apart along the Y direction;

[0015] Multiple bearings are disposed on the lifting plate; the lead screw passes through the bearing, extends along the X direction, and is rotatably connected to the bearing;

[0016] The movable handle is located at one end of the lead screw and is connected to the lead screw.

[0017] Preferably, the slide table includes a slide table mounting plate, a slider, and a lead screw nut; wherein...

[0018] The slide mounting plate is a plate structure with mounting holes and is connected to the insert arm;

[0019] The slider is connected to the slide table mounting plate and is sleeved on the slide rail;

[0020] The lead screw nut is connected to the slide mounting plate and is sleeved on the lead screw.

[0021] Preferably, the insert arm further includes a vertical arm and a horizontal arm; wherein...

[0022] The vertical arm is arranged along the Y direction and connected to the slide table;

[0023] The horizontal arm is arranged along the Z-direction, with one end in contact with the vertical arm and the other end connected to the insert arm mounting plate.

[0024] Preferably, the insert mounting plate contacts the upper surface of the cross arm and extends parallel to the XZ plane.

[0025] Preferably, the rotating assembly includes a rotating handle, a reducer, and a clamping assembly; wherein...

[0026] The reducer includes a first rotating shaft and a second rotating shaft; the first rotating shaft can drive the second rotating shaft to rotate, and the two are arranged perpendicular to each other; the first rotating shaft is connected to the rotating handle, and the second rotating shaft is connected to the clamping assembly;

[0027] The lower surface of the reducer contacts and connects with the insert arm mounting plate; the rotary handle is located above the insert arm mounting plate.

[0028] Preferably, the clamping assembly includes a clamping plate and a clamping rod; wherein...

[0029] The clamping plate is a plate-like structure, with its middle part connected to the second rotating shaft of the reducer and its two ends connected to a plurality of clamping rods;

[0030] The clamping rod is a rod-like structure with a longitudinal direction, its axis extending along the Z direction, and one end of it is connected to the clamping plate; the size and spacing of the plurality of clamping rods are adapted to the radiation source.

[0031] Preferably, the reducer has a self-locking structure.

[0032] Preferably, the projection of the reducer onto the XZ plane lies within the polygonal region formed by the projections of the plurality of directional wheels and the omnidirectional wheels.

[0033] Compared with existing technologies, this invention integrates a hydraulic lifting mechanism, utilizing a high-efficiency hydraulic pump and a precision hydraulic cylinder to achieve stable vertical displacement of the X-ray tube, reducing the risk of fall caused by manual handling. It adopts a multi-axis positioning mechanism, employing high-precision linear guideways and ball screw technology to achieve lateral movement of the X-ray tube, supplemented by a servo reducer and a fine-tuning handle to adjust the tube's posture, allowing for 360° rotation and ensuring the accuracy and reliability of the installation operation. Equipped with a combination of omnidirectional and directional wheels, it enhances directional control during X-ray tube handling. This invention solves the problems of high labor intensity and safety associated with traditional designs, as well as the insufficient installation accuracy and stability caused by traditional designs. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of a tooling for installing a static CT radiation source in an embodiment of the present invention;

[0035] Figure 2 for Figure 1 Exploded view of the tooling in the diagram;

[0036] Figure 3 for Figure 1 A schematic diagram of the structure of the moving component in the diagram;

[0037] Figure 4 for Figure 1 A schematic diagram of the insert arm in the diagram;

[0038] Figure 5 for Figure 1 A schematic diagram of the rotating component in the diagram;

[0039] Figure 6 This is a schematic diagram of the gantry and X-ray source of a static CT scanner. Detailed Implementation

[0040] The technical content of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] The technical concept of this utility model embodiment is to provide a convenient and compact lifting platform capable of moving, lifting, and deflecting the X-ray source so that the X-ray source reaches the frame mounting position. Specifically, a forklift is used as the tooling base, and a lifting and moving reducer is used to clamp and rotate the X-ray source, so that the X-ray source reaches the installation position at the required deflection angle.

[0042] It should be noted that the X, Y and Z coordinates in the accompanying drawings of this utility model follow the CT industry convention, with the X-ray source installation direction (scanning bed feed direction) as the Z direction, the vertical direction as the Y direction, and the horizontal direction perpendicular to the Y and Z directions as the X direction (lateral direction).

[0043] like Figure 1 and Figure 2 As shown in the figure, an embodiment of this utility model provides a fixture for installing a static CT radiation source, including a stacker 1, a moving assembly 2, a insert arm 3, and a rotating assembly 4. The rotating assembly 4 is used to clamp and rotate the radiation source 100.

[0044] The stacker truck 1 includes a mast 11, directional wheels 12, casters 13, a hydraulic system 14, and a lifting platform 15. The mast 11 is a frame-like support structure. The directional wheels 12 are located at the far end of the front extension leg of the mast 11 (the far end in the Z-direction, near the rotating component 4), and the casters 13 are located at the other end of the mast 11. The casters 13 can rotate 360° to change the direction of travel. The hydraulic system 14 is located inside the mast 11 and is connected to the lifting platform 15 via a chain (not shown) to drive the lifting platform 15 to move. Preferably, the hydraulic system 14 is positioned along the Y-direction to achieve millimeter-level lifting accuracy. The lifting platform 15 is a plate-like structure capable of moving up and down along the uprights of the mast 11.

[0045] like Figure 3 As shown, the moving assembly 2 includes slide rails 21, bearings 22, a lead screw 23, a slide table 24, and a moving handle 25. Multiple slide rails 21 are mounted on the lifting plate 15, extending along the X-direction and spaced apart along the Y-direction. Multiple bearings 22 are mounted on the lifting plate 15, extending axially along the X-direction and spaced apart along the X-direction. The lead screw 23 passes through the bearings 22, extends along the X-direction, and is rotatably connected to the bearings 22. The moving handle 25 is located at one end of the lead screw 23 and connected to the lead screw 23; rotating the moving handle 25 drives the lead screw 23 to rotate. Preferably, the lead screw 23 is a ball screw. Preferably, the slide rails 21 are high-precision linear slide rails.

[0046] The slide table 24 includes a slide table mounting plate 241, a slider 242, and a lead screw nut (not shown in the figure). The slide table mounting plate 241 is a plate structure with mounting holes. The slider 242 is connected to the slide table mounting plate 241 and is sleeved on the slide rail 21, slidably connected to the slide rail 21. The size and installation direction of the slider 242 are adapted to the slide rail 21. The lead screw nut is connected to the slide table mounting plate 241 and is sleeved on the lead screw 23, slidably connected to the lead screw 23. The size and installation direction of the lead screw nut are adapted to the lead screw 23. Driven by the moving handle 25 and the lead screw 23, the slide table 24 can reciprocate along the slide rail 21 in the X direction.

[0047] like Figure 4 As shown, the insert arm 3 includes a vertical arm 31, a horizontal arm 32, and an insert arm mounting plate 33. The vertical arm 31 and the horizontal arm 32 are rods or tubes with a longitudinal direction, such as industrial aluminum profiles. The vertical arm 31 is arranged along the Y-axis, and the horizontal arm 32 is arranged along the Z-axis. One end of the horizontal arm 32 contacts the vertical arm 31, and the other end is provided with the insert arm mounting plate 33. The insert arm mounting plate 33 contacts the upper surface of the horizontal arm 32 and extends parallel to the XZ plane.

[0048] like Figure 5 As shown, the rotating assembly 4 includes a rotating handle 41, a reducer 42, and a clamping assembly 43. The reducer 42 includes a first rotating shaft and a second rotating shaft, which are arranged perpendicularly to each other. The first rotating shaft can drive the second rotating shaft to rotate. The first rotating shaft of the reducer 42 is connected to the rotating handle 41, and its second rotating shaft is connected to the clamping assembly 43. The rotating handle 41 is positioned above the insert arm mounting plate 33. When the rotating handle 41 rotates, it drives the second rotating shaft of the reducer 42 and the clamping assembly 43 to rotate, thereby rotating the X-ray source 100 and allowing the X-ray source 100 to reach any angular position on the scanning frame.

[0049] The clamping assembly 43 includes a clamping plate 431 and clamping rods 432. The clamping plate 431 is a plate-like structure, with its central portion connected to the second rotating shaft of the reducer 42, and multiple clamping rods 432 connected to its two ends. The clamping rods 432 are rod-like structures with a longitudinal direction, one end connected to the clamping plate 431, and their axis extending along the Z-direction. Preferably, the axis of the clamping rods 432 extends along the Z-direction, or forms a designed angle with the Z-direction, for example, the clamping rods 432 form an upward angle. The size and spacing of the multiple clamping rods 432 are adapted to the radiation source 100.

[0050] The stacker 1 is equipped with directional wheels 12 and omnidirectional wheels 13, enabling it to move freely along the ground. The moving assembly 2 is connected to the lifting plate 15 of the stacker 1. The vertical arm 31 contacts and connects to the sliding platform mounting plate 241, for example, via bolts and angle brackets. The horizontal arm 32 extends along the Z-axis, and the insert arm mounting plate 33 is positioned above the horizontal arm 32 (Y-axis). The lower surface of the reducer 42 contacts and connects to the insert arm mounting plate 33; its first axis of rotation is positioned along the X-axis, and its second axis of rotation is positioned along the Z-axis. Furthermore, the second axis of the reducer 42 is connected to the clamping assembly 43. Therefore, the hydraulic system 14 can drive the clamping assembly 43 to reciprocate along the Y-axis, rotating the moving handle 25 can drive the clamping assembly 43 to reciprocate along the X-axis, and rotating the rotating handle 41 can drive the clamping assembly 43 to rotate around the Z-axis. The clamping assembly 43 is adapted to the structure of the radiation source 100. For example, the radiation source 100 is provided with clamping holes or clamping grooves, which can cooperate with the clamping rod 432 to clamp the radiation source 100.

[0051] Preferably, the projection of the reducer 42 onto the XZ plane is located between the projections of the multiple directional wheels 12 and the universal wheels 13, so as to prevent the center of gravity of the tooling after clamping the X-ray source 100 from deviating from the support range of the stacker 1 and to prevent tipping over. In other words, connecting the projections of the multiple directional wheels 12 and the universal wheels 13 onto the XZ plane can form a polygon, and the projection of the reducer 42 is located within the area of ​​this polygon.

[0052] It is worth noting that the reducer 42 provided in this embodiment of the invention has a self-locking structure, such as a worm gear structure. In other words, the second rotating shaft cannot drive the first rotating shaft. Utilizing the self-locking structure of the reducer 42, the rotation angle of the clamping assembly 43 and the radiation source 100 can be locked and maintained. The angle will not shift due to the weight of the radiation source 100, and it will not even cause the rotating handle 41 to rotate.

[0053] like Figure 6 As shown, multiple X-ray sources 100 are evenly distributed along the circumference of the static CT gantry, each with a different installation height and angle. This embodiment of the invention provides a fixture for installing static CT X-ray sources, the operation steps of which are as follows:

[0054] ①This tooling is pushed to the work area by the universal casters 13 and the fixed casters 12;

[0055] ② Insert the clamping rod 432 into the side groove of the radiation source 100;

[0056] ③ Use the hydraulic system 14 to lift the X-ray source 100 to a safe height and move it to the gantry of the static CT scanner;

[0057] ④ Rotate the handle 41 to adjust the angle of the X-ray source 100 to match the installation position angle;

[0058] ⑤ Rotate the moving handle 25 to drive the insertion arm 3 through the lead screw 23, so that the radiation source 100 moves laterally closer to the installation position;

[0059] ⑥ After the X-ray source 100 is installed in place, remove this tooling.

[0060] In summary, this utility model provides a fixture for installing a static CT X-ray source. It achieves lateral movement of the X-ray source through high-precision linear guide rails and ball screw technology. The angle of the X-ray source can be adjusted 360° via a reducer and handle, ensuring accuracy and stability during installation. The linear guide rails ensure smooth and precise movement, while the ball screws achieve efficient power conversion and linear propulsion. Furthermore, the fixture is propelled by a trolley-type structure, equipped with a combination of omnidirectional and directional wheels, enhancing directional control during X-ray source handling. Clamping the X-ray source with clamping rods reduces the installation space occupied by the clamping equipment, accommodating smaller X-ray source installation spacing.

[0061] It should be noted that the above embodiments are merely illustrative examples. The technical solutions of the various embodiments can be combined, and all are within the protection scope of this utility model.

[0062] The terms “up,” “down,” “horizontal,” “vertical,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0064] The above provides a detailed description of the fixture for installing a static CT radiation source provided by this utility model. Any obvious modifications made by those skilled in the art without departing from the essential content of this utility model will constitute an infringement of the patent rights of this utility model and will incur corresponding legal liability.

Claims

1. A fixture for mounting a static CT X-ray source, characterized in that... This includes forklifts, moving components, extension arms, and rotating components; among which, The stacker truck includes a lifting platform, and the moving component is connected to the lifting platform; The movable component includes a slide table, and the insert arm is connected to the slide table; The insert arm includes an insert arm mounting plate, and the rotating assembly is connected to the insert arm mounting plate.

2. The tooling as described in claim 1, characterized in that... The stacker truck also includes a mast, directional wheels, casters, and a hydraulic system; among which... The gantry is a frame-like support structure. The directional wheel is located at one end of the gantry near the rotating component, and the omnidirectional wheel is located at the other end of the gantry. The hydraulic system is located inside the gantry and is connected to the lifting plate via a chain.

3. The tooling as described in claim 1, characterized in that... The moving component also includes a slide rail, bearings, a lead screw, and a moving handle; wherein, Multiple slide rails are disposed on the lifting plate, extending along the X direction and spaced apart along the Y direction; Multiple bearings are disposed on the lifting plate; the lead screw passes through the bearing, extends along the X direction, and is rotatably connected to the bearing; The movable handle is located at one end of the lead screw and is connected to the lead screw.

4. The tooling as described in claim 3, characterized in that... The slide table includes a slide table mounting plate, a slider, and a lead screw nut; wherein... The slide mounting plate is a plate structure with mounting holes and is connected to the insert arm; The slider is connected to the slide table mounting plate and is sleeved on the slide rail; The lead screw nut is connected to the slide mounting plate and is sleeved on the lead screw.

5. The tooling as described in claim 1, characterized in that... The insertion arm further includes a vertical arm and a horizontal arm; wherein... The vertical arm is arranged along the Y direction and connected to the slide table; The horizontal arm is arranged along the Z-direction, with one end in contact with the vertical arm and the other end connected to the insert arm mounting plate.

6. The tooling as described in claim 5, characterized in that: The insert mounting plate contacts the upper surface of the cross arm and extends parallel to the XZ plane.

7. The tooling as described in claim 2, characterized in that... The rotating assembly includes a rotating handle, a reducer, and a clamping assembly; wherein... The reducer includes a first rotating shaft and a second rotating shaft; the first rotating shaft can drive the second rotating shaft to rotate, and the two are arranged perpendicular to each other; the first rotating shaft is connected to the rotating handle, and the second rotating shaft is connected to the clamping assembly; The lower surface of the reducer contacts and connects with the insert arm mounting plate; the rotary handle is located above the insert arm mounting plate.

8. The tooling as described in claim 7, characterized in that... The clamping assembly includes a clamping plate and a clamping rod; wherein... The clamping plate is a plate-like structure, with its middle part connected to the second rotating shaft of the reducer and its two ends connected to a plurality of clamping rods; The clamping rod is a rod-like structure with a longitudinal direction, its axis extending along the Z direction, and one end of it is connected to the clamping plate; the size and spacing of the plurality of clamping rods are adapted to the radiation source.

9. The tooling as described in claim 7, characterized in that: The reducer has a self-locking structure.

10. The tooling as described in any one of claims 7 to 9, characterized in that: The projection of the reducer onto the XZ plane lies within the polygonal region formed by the projections of the multiple directional wheels and the omnidirectional wheels.

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