CT (Computed Tomography) machine cable winding and unwinding auxiliary mechanism

By designing the CT machine cable collection and spreading auxiliary mechanism, the cable is changed to a flat belt shape, and using the reset motor and arc rack structure, the cable is flat reset and self-recycling are achieved, which solves the cable recycling process Stress concentration problem extends service life.

CN222249608UActive Publication Date: 2024-12-27NAN JING ZE JIA YING KE JI YOU XIAN GONG SI
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Patent Information

Application Number
CN202421153504.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-24
Publication Date
2024-12-27
Estimated Expiration
2034-05-24

AI Technical Summary

Technical Problem

During the recycling process, CT machine cables are prone to cracking or breaking due to friction and stress concentration, shortening their service life.

Method used

A CT machine cable retracting and spreading auxiliary mechanism is designed. By changing the cable into a flat belt and using a reset motor to drive the walking gear to move the arc rack, it drives the slide roller to reset the cable in a flat manner. , use your own weight to achieve automatic recovery of the remaining part to avoid stress concentration.

Benefits of technology

It effectively avoids stress concentration in the cable during the recycling process and extends the service life of the CT machine cable.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a CT machine cable winding and unwinding auxiliary mechanism, which relates to the technical field of CT machine cables and comprises a bottom frame, a middle support frame is fixedly connected to the top of the bottom frame, a large gear is rotatably connected in the middle support frame, and a driving part used for driving the large gear to rotate is arranged in the middle support frame. One side of the large gear is fixedly connected with an emitter fixing frame, one side of the emitter fixing frame is fixedly connected with a cable belt, the cable belt is in a flat belt shape, a traditional cable is changed into the flat belt shape through the cable belt, the stress area of the cable belt is enlarged, meanwhile, when the cable belt is recovered and reset, the cable belt is not prone to falling off, and the cable belt is not prone to falling off. The reset motor drives the walking gear to move on the arc-shaped rack, so that the connecting rod moves and drives the sliding assisting roller to move, the sliding assisting roller makes contact with the cable belt to push the cable belt back to be reset in a flat laying mode, the phenomenon of stress concentration is avoided, and meanwhile the service life of the CT machine cable is prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of CT machine cables, in particular to a CT machine cable retraction and extension auxiliary mechanism. Background Art

[0002] When the CT machine is in operation, the cable will move with the rotation of the X-ray emitter. When the cable needs to be recovered, it is necessary to use an auxiliary structure to apply traction at a fixed position to pull the cable back to reset it. Since the surface of the cable may be pulled at a fixed point, friction may be generated and the stress inside the cable may be redistributed, especially at the edges or weak links of the cable, stress concentration may occur. Long-term use may easily cause cracking or even breakage, shortening the service life of the CT machine cable. Utility Model Content

[0003] The utility model provides a CT machine cable retraction and extension auxiliary mechanism, which solves the technical problems that friction may be generated on the surface of the cable when it is pulled at a fixed point, and the stress inside the cable may be redistributed, especially at the edge or weak link of the cable, which may cause stress concentration, and the cable may be prone to cracking or even breaking after long-term use, thereby shortening the service life of the CT machine cable.

[0004] In order to solve the above technical problems, the utility model provides a CT machine cable retraction and extension auxiliary mechanism, including a base frame, the top of the base frame is fixedly connected to a middle support frame, a large gear is rotatably connected in the middle support frame, a driving member for driving the large gear to rotate is arranged in the middle support frame, a transmitter fixing frame is fixedly connected to one side of the large gear, a cable belt is tightly connected to one side of the transmitter fixing frame, the shape of the cable belt is a flat belt, the other end of the cable belt is fixedly connected to the middle support frame, one side of the middle support frame is fixedly connected to a guide rail ring, the cable belt overlaps the guide rail ring, and one side of the middle support frame is fixed It is connected with an arc-shaped rack, one side of the middle support frame is slidably connected with a side sliding frame, a reset motor is fixedly connected in the side sliding frame, a driving end of the reset motor is fixedly connected with a walking gear, the walking gear is meshed with the arc-shaped rack, a connecting rod is fixedly connected in the side sliding frame, one end of the connecting rod in contact with the cable belt is rotatably connected with a sliding-aiding roller, the sliding-aiding roller is slidably connected with the cable belt, both ends of the arc-shaped rack are fixedly connected with stroke sensors, the stroke sensors correspond to the position of the side sliding frame, a controller is fixedly connected in the middle support frame, and the stroke sensor and the reset motor are electrically connected to the controller.

[0005] Preferably, the driving member includes a driving motor fixedly connected to the side of the middle support frame away from the large gear, the driving end of the driving motor is fixedly connected to a driving rod, and a through hole is opened in the middle support frame for the driving rod to pass through, and one end of the driving rod extending outside the through hole is fixedly connected to a driving gear, and the driving gear is meshingly connected to the large gear.

[0006] Preferably, a side baffle is fixedly connected to one side of the middle support frame, and the side baffle is installed on one side of the guide rail ring. The side baffle includes a plurality of limiting arc plates, and a plurality of positioning bolts are threadedly connected to the plurality of limiting arc plates. A threaded blind hole matching the positioning bolts is opened in the middle support frame.

[0007] Preferably, a travel rail is fixedly connected to one side of the arc-shaped rack, and grooves are provided on the inner and outer sides of the travel rail. A plurality of auxiliary pulleys are rotatably connected in the side slide frame, and the auxiliary pulleys include a disc integrally formed therewith, and the disc is slidably connected to the groove.

[0008] Preferably, a plurality of foot pads are fixedly connected to the bottom of the base frame, and the plurality of foot pads are arranged in a rectangular array.

[0009] Preferably, two side frames are fixedly connected to the top of the base frame, and the two side frames are symmetrically arranged. One side of the side frame is fixedly connected to the middle support frame, and a reinforcing plate is fixedly connected to the middle of the side frame, and one side of the reinforcing plate is fixedly connected to the middle support frame.

[0010] Compared with the related art, the CT machine cable retraction and extension auxiliary mechanism provided by the utility model has the following beneficial effects:

[0011] In the utility model, the traditional cable is changed into a flat belt shape by a cable belt, so that the force-bearing area of ​​the cable belt is expanded. At the same time, when the cable belt is recovered and reset, the reset motor drives the walking gear to move on the arc-shaped rack, so that the connecting rod moves and drives the sliding roller to move. The sliding roller contacts the cable belt and pushes it back in a flat manner to reset it, and stops at the other end of the arc-shaped rack. At this time, the part of the cable belt located at this position has a certain weight, and the remaining part can be reset by drooping its own weight, thereby avoiding the occurrence of stress concentration. At the same time, after providing an auxiliary force of a certain displacement distance, the cable belt can be recovered and reset by its own weight, thereby extending the service life of the CT machine cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of a CT machine cable retraction and extension auxiliary mechanism;

[0013] Figure 2 This is a schematic diagram of the structure of a large gear in a cable retraction and extension auxiliary mechanism of a CT machine;

[0014] Figure 3 for Figure 1 A magnified view of the structure at center A;

[0015] Figure 4 for Figure 2 A magnified view of the structure at point B.

[0016] Numbers in the figure: 1. Base frame; 2. Foot pad; 3. Side frame; 4. Reinforcement plate; 5. Middle support frame; 6. Drive motor; 7. Cable belt; 8. Transmitter fixing frame; 9. Guide ring; 10. Arc rack; 11. Side baffle; 12. Large gear; 13. Auxiliary roller; 14. Connecting rod; 15. Side slide frame; 16. Travel rail; 17. Auxiliary pulley; 18. Reset motor; 19. Travel sensor; 20. Drive gear. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0018] In the description of the present utility model, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like are involved, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0019] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] See also Figure 1-Figure 4 , an embodiment provided by the utility model:

[0021] A CT machine cable retraction and extension auxiliary mechanism, comprising a base frame 1, a middle support frame 5 is fixedly connected to the top of the base frame 1, a large gear 12 is rotatably connected to the middle support frame 5, a driving member for driving the large gear 12 to rotate is arranged in the middle support frame 5, a transmitter fixing frame 8 is fixedly connected to one side of the large gear 12, a cable belt 7 is fastened to one side of the transmitter fixing frame 8, the cable belt 7 is in the shape of a flat belt, the other end of the cable belt 7 is fixedly connected to the middle support frame 5, and one side of the middle support frame 5 is fixedly connected There is a guide ring 9, the cable belt 7 is overlapped with the guide ring 9, one side of the middle support frame 5 is fixedly connected with an arc rack 10, one side of the middle support frame 5 is slidably connected with a side slide frame 15, a reset motor 18 is fixedly connected in the side slide frame 15, the driving end of the reset motor 18 is fixedly connected with a travel gear, the travel gear is meshed with the arc rack 10, a connecting rod 14 is fixedly connected in the side slide frame 15, and the end of the connecting rod 14 that contacts the cable belt 7 is rotatably connected with a sliding roller 13, and the sliding roller 13 is connected to the cable belt 7 sliding connection, both ends of the arc-shaped rack 10 are fixedly connected with travel sensors 19, the travel sensors 19 correspond to the positions of the side slides 15, and the middle support frame 5 is fixedly connected with a controller, and the travel sensors 19 and the reset motor 18 are electrically connected to the controller. The traditional cable line is changed into a flat belt through the cable belt 7, and the force-bearing area of ​​the cable belt 7 is expanded. At the same time, when the cable belt 7 is recovered and reset, the reset motor 18 drives the walking gear to move on the arc-shaped rack 10, so that the connecting rod 14 moves and drives the sliding roller 13 to move, and the sliding roller 13 contacts the cable belt 7 and pushes it back in a flat manner to reset it, and stops at the other end of the arc-shaped rack 10. At this time, the part of the cable belt 7 located at this position has a certain weight, and the remaining part can be reset by using its own weight to sag, thereby avoiding the occurrence of stress concentration. At the same time, after providing an auxiliary force for a certain displacement distance, the cable belt 7 can be recovered and reset by its own weight, thereby extending the service life of the CT machine cable.

[0022] See also Figure 1 , Figure 2 and Figure 4In this embodiment, the driving member includes a driving motor 6 fixedly connected to the side of the middle support frame 5 away from the large gear 12, the driving end of the driving motor 6 is fixedly connected to a driving rod, and a through hole for the driving rod to pass through is provided in the middle support frame 5, and one end of the driving rod extending outside the through hole is fixedly connected to a driving gear 20, and the driving gear 20 is meshed and connected with the large gear 12. The driving motor 6 can be started to drive the driving gear 20 to rotate, and the meshing of the driving gear 20 and the large gear 12 drives the large gear 12 to rotate. When the large gear 12 rotates, the X-ray emitter connected to the emitter fixing frame 8 and the cable belt 7 will move;

[0023] The emitter fixing frame 8 is used to install and fix the X-ray emitter, and the opposite side is used to fix the optical camera, which uses the penetration of X-rays to capture the state of the body, and the cable belt 7 is electrically connected to the X-ray emitter.

[0024] It should be noted that a side baffle 11 is fixedly connected to one side of the middle support frame 5, and the side baffle 11 is installed on one side of the guide rail ring 9. The side baffle 11 includes a plurality of limit arc plates, and a plurality of positioning bolts are threadedly connected to the inner threads of the plurality of limit arc plates. A threaded blind hole adapted to the positioning bolt is provided in the middle support frame 5, and the lateral movement of the cable belt 7 is blocked by the side baffle 11, which helps to move and reset the cable belt 7;

[0025] See also Figure 3 In this embodiment, a travel rail 16 is fixedly connected to one side of the arc-shaped rack 10, and grooves are provided on the inner and outer sides of the travel rail 16. A plurality of auxiliary pulleys 17 are rotatably connected to the side slide 15, and the auxiliary pulley 17 includes a disc integrally formed therewith, and the disc is slidably connected to the groove; a plurality of foot pads 2 are fixedly connected to the bottom of the base frame 1, and the plurality of foot pads 2 are arranged in a rectangular array. By docking the auxiliary pulleys 17 with the inner and outer sides of the travel rail 16, the freedom of the side slide 15 can be limited so that it can only slide relative to the travel rail 16.

[0026] See also Figure 1 In this embodiment, two side frames 3 are fixedly connected to the top of the base frame 1, and the two side frames 3 are symmetrically arranged. One side of the side frame 3 is fixedly connected to the middle support frame 5, and a reinforcing plate 4 is fixedly connected to the middle of the side frame 3, and one side of the reinforcing plate 4 is fixedly connected to the middle support frame 5. Through the arrangement of the side frames 3 and the reinforcing plates 4, the connection stability between the base frame 1 and the middle support frame 5 is improved, and the force strength of the middle support frame 5 is improved.

[0027] Working principle: During detection, the driving motor 6 is started to drive the driving gear 20 to rotate, and the meshing of the driving gear 20 and the large gear 12 drives the large gear 12 to rotate. When the large gear 12 rotates, the X-ray emitter connected to the emitter fixing frame 8 and the cable belt 7 will move. At this time, the reset motor 18 is started to use the cooperation of the walking gear and the arc rack 10 to move the connecting rod 14 and the sliding roller 13 in the direction of the cable belt 7, which is the line spreading operation, until the travel sensor 19 at one end of the arc rack 10 detects and transmits a signal to the controller, and the controller controls the reset motor 18 to power off and stop. When winding the line, the driving motor 6 drives the driving gear 20 to drive the large gear 12 rotates to reset, and at the same time, the reset motor 18 is started, and the reset motor 18 drives the walking gear to move and reset on the arc rack 10, so that the connecting rod 14 moves and drives the sliding roller 13 to move, and the sliding roller 13 contacts the cable belt 7 and pushes it back in a flat manner to reset it. When it reaches the other end of the arc rack 10, the stroke sensor 19 detects the transmitted signal, and the controller stops the reset motor 18. At this time, the part of the cable belt 7 at this position has a certain weight, and the remaining part can be reset by utilizing its own weight to sag, thereby avoiding the occurrence of stress concentration. At the same time, after providing an auxiliary force for a certain displacement distance, the cable belt 7 can be reset by its own weight to complete the winding.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CT machine cable retraction and extension auxiliary mechanism, characterized in that: The invention comprises a base frame (1), wherein a middle support frame (5) is fixedly connected to the top of the base frame (1), a large gear (12) is rotatably connected to the middle support frame (5), a driving member for driving the large gear (12) to rotate is arranged in the middle support frame (5), a transmitter fixing frame (8) is fixedly connected to one side of the large gear (12), a cable belt (7) is tightly connected to one side of the transmitter fixing frame (8), the cable belt (7) is in the shape of a flat belt, the other end of the cable belt (7) is fixedly connected to the middle support frame (5), a guide rail ring (9) is fixedly connected to one side of the middle support frame (5), the cable belt (7) overlaps the guide rail ring (9), an arc-shaped rack (10) is fixedly connected to one side of the middle support frame (5), and one side of the middle support frame (5) is slidably connected to the guide rail ring (9). A side slide (15) is connected, a reset motor (18) is fixedly connected inside the side slide (15), a driving end of the reset motor (18) is fixedly connected to a travel gear, the travel gear is meshingly connected to the arc-shaped rack (10), a connecting rod (14) is fixedly connected inside the side slide (15), one end of the connecting rod (14) in contact with the cable belt (7) is rotatably connected to a sliding roller (13), the sliding roller (13) is slidably connected to the cable belt (7), both ends of the arc-shaped rack (10) are fixedly connected to a stroke sensor (19), the stroke sensor (19) corresponds to the position of the side slide (15), a controller is fixedly connected inside the middle support frame (5), and the stroke sensor (19) and the reset motor (18) are both electrically connected to the controller.

2. The CT machine cable retraction and extension auxiliary mechanism according to claim 1, characterized in that: The driving member comprises a driving motor (6) fixedly connected to a side of the middle support frame (5) away from the large gear (12); a driving end of the driving motor (6) is fixedly connected to a driving rod; a through hole is provided in the middle support frame (5) for the driving rod to pass through; one end of the driving rod extending outside the through hole is fixedly connected to a driving gear (20); and the driving gear (20) is meshedly connected to the large gear (12).

3. The CT machine cable retraction and extension auxiliary mechanism according to claim 1, characterized in that: A side baffle (11) is fixedly connected to one side of the middle support frame (5), and the side baffle (11) is installed on one side of the guide rail ring (9). The side baffle (11) comprises a plurality of limit arc plates, and a plurality of positioning bolts are threadedly connected to the inner threads of the plurality of limit arc plates. A threaded blind hole matching the positioning bolts is provided in the middle support frame (5).

4. The CT machine cable retraction and extension auxiliary mechanism according to claim 1, characterized in that: A travel rail (16) is fixedly connected to one side of the arc-shaped rack (10), and grooves are provided on the inner and outer sides of the travel rail (16). A plurality of auxiliary pulleys (17) are rotatably connected inside the side slide frame (15), and the auxiliary pulleys (17) include a disc integrally formed therewith, and the disc is slidably connected to the groove.

5. The CT machine cable retraction and extension auxiliary mechanism according to claim 1, characterized in that: A plurality of foot pads (2) are fixedly connected to the bottom of the base frame (1), and the plurality of foot pads (2) are arranged in a rectangular array.

6. The CT machine cable retraction and extension auxiliary mechanism according to claim 1, characterized in that: The top of the base frame (1) is fixedly connected to two side frames (3), the two side frames (3) are symmetrically arranged, one side of the side frame (3) is fixedly connected to the middle support frame (5), the middle of the side frame (3) is fixedly connected to a reinforcing plate (4), and one side of the reinforcing plate (4) is fixedly connected to the middle support frame (5).