Precise transmission lead screw structure of X-ray industrial detection equipment

Abstract

The utility model relates to the technical field of transmission screw rods, and discloses a precision transmission screw rod structure of X-ray industrial detection equipment, which comprises a shell, a loading plate is arranged in the shell, a servo motor is fixedly connected to the inner top wall of the shell, the output end of the servo motor is fixedly connected with a second gear, and the second gear is fixedly connected with a transmission shaft. A first screw rod is fixedly connected to the inner wall of the second gear, a ball nut is in threaded connection to the outer wall of the first screw rod, a fixing rod penetrates through the outer wall of the ball nut and is fixedly connected to the upper side and the lower side of the inner wall of the shell, and a third gear is arranged on the rear side of the interior of the shell; and the third gear is in engaged connection with the second gear. According to the utility model, through the clamping of the clamping block, the ball nut and the carrying plate are firmly fixed on the connecting rod, the fixed block can be driven by the ball nut to slide up and down along with the ball nut, and the second sliding block and the second sliding rail facilitate the sliding of the fixed block.

Description

Technical Field

[0001] This utility model relates to the field of transmission screw technology, and in particular to the structure of precision transmission screws for X-ray industrial inspection equipment. Background Technology

[0002] X-ray industrial inspection equipment refers to specialized equipment that utilizes the ability of X-rays to penetrate matter to inspect the internal structure and assess the quality of various industrial products and components. It is typically an industrial non-destructive testing X-ray machine. Without damaging the object being inspected, it can quickly and accurately detect internal defects, structures, and compositional information of the object. It is widely used in many industrial fields such as electronics, machinery, automobiles, and aerospace.

[0003] Existing X-ray industrial inspection equipment uses a precision transmission screw structure. During operation, this structure converts the rotational motion of the motor into the linear motion of the stage, enabling precise axial movement and positioning of the stage. Common ball screw precision transmission screw structures typically lack self-locking functionality. When used in the vertical direction, without additional braking or self-locking devices, the stage will slide down under gravity after the motor stops rotating, affecting the safety and stability of the equipment. Existing technology uses a special trapezoidal screw with self-locking characteristics. Its thread angle design allows the screw to prevent the stage from sliding down due to gravity in the vertical direction without external force driving rotation, relying on the friction between the threads and the mechanical structure. However, the trapezoidal screw needs to overcome greater friction to achieve the same motion during transmission, thus consuming more energy and reducing transmission efficiency. Friction and wear between the threads also increase the clearance, affecting the positioning accuracy of the stage. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a precision transmission lead screw structure for X-ray industrial inspection equipment, aiming to improve the problems in the prior art that lead to reduced transmission efficiency, friction and wear between threads, resulting in increased clearance and thus affecting the positioning accuracy of the stage.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a precision transmission lead screw structure for X-ray industrial inspection equipment, comprising a housing, a carrying plate disposed inside the housing, a servo motor fixedly connected to the inner top wall of the housing, a second gear fixedly connected to the output end of the servo motor, a first lead screw fixedly connected to the inner wall of the second gear, a ball nut threadedly connected to the outer wall of the first lead screw, a fixing rod penetrating the outer wall of the ball nut, the fixing rod being fixedly connected to the upper and lower sides of the inner wall of the housing, a third gear disposed on the inner rear side of the housing, the third gear meshing with the second gear, a connecting rod fixedly connected to the inner wall of the third gear, and the connecting rod... The connecting rod is slidably connected to the upper and lower sides of the inner wall of the housing. A groove is provided on the outer wall of the connecting rod. A spring is fixedly connected to the rear side of the outer wall of the ball nut. A fixing block is fixedly connected to the rear side of the outer wall of the ball nut. A locking block is fixedly connected to the other end of the spring. The locking block is located inside the fixing block. A connecting rod passes through the middle of the top wall of the fixing block. The locking block is located inside the groove. A second slider is fixedly connected to the rear side of the outer wall of the fixing block. A second slide rail is slidably connected to the rear side of the outer wall of the second slider. The second slide rail is fixedly connected to the rear side of the inner wall of the housing. A heat dissipation mechanism is fixedly connected to the left side of the inner wall of the housing. The heat dissipation mechanism is used to dissipate heat from the device inside the housing.

[0006] As a further description of the above technical solution:

[0007] The heat dissipation mechanism includes a motor, the output end of which is fixedly connected to a first gear. A first slide rail is fixedly connected to the left side of the inner wall of the housing. A first slider is slidably connected to the right side of the outer wall of the first slide rail. A rack is fixedly connected to the right side of the outer wall of the first slider. The rack and the first gear are meshed together. A connecting plate is fixedly connected to the rear side of the outer wall of the first gear. A fan is installed on the right side of the outer wall of the connecting plate.

[0008] As a further description of the above technical solution:

[0009] A hinge is fixedly connected to the left side of the outer wall of the housing, and a protective door is fixedly connected to the other side of the hinge.

[0010] As a further description of the above technical solution:

[0011] A handle is provided on the front side of the outer wall of the protective door. Screws are threaded to the upper and lower ends of the outer wall of the handle, and the handle is threaded to the outer shell through the screws.

[0012] As a further description of the above technical solution:

[0013] The outer wall of the protective door is fitted with glass.

[0014] As a further description of the above technical solution:

[0015] A hinge is fixedly connected to the right side of the outer wall of the housing, and a placement plate is fixedly connected to the other side of the hinge.

[0016] As a further description of the above technical solution:

[0017] Connecting frames are fixedly connected to the four corners of the bottom wall of the outer shell, and rollers are slidably connected to the bottom wall of the connecting frames.

[0018] As a further description of the above technical solution:

[0019] A warning light is installed on the right side of the top wall of the outer casing, and a protective shell is installed on the top wall of the warning light.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when the third gear stops rotating due to the second gear, the connecting rod also stops rotating. The spring on the front side of the ball nut will spring the locking block into the slot on the connecting rod within the fixing block for locking. Through the locking of the locking block, the ball nut and the carrying plate are firmly fixed on the connecting rod, while the fixing block will slide up and down with the ball nut. The second slider and the second slide rail facilitate the sliding of the fixing block.

[0022] 2. In this utility model, when the temperature inside the outer casing is too high, the motor is started, which causes the first gear to rotate. The first gear moves the rack up and down, and the rack is fixed by the first slider. The first slider slides up and down in the first slide rail. The connection between the first slider and the first slide rail makes the rack slide more smoothly. The connecting plate fixed on the rack moves up and down with the rack, which in turn moves the fan on the connecting plate up and down. The fan evenly dissipates heat from the device inside the motor. Attached Figure Description

[0023] Figure 1 A perspective view of the precision transmission lead screw structure of the X-ray industrial inspection equipment proposed in this utility model;

[0024] Figure 2 This is a front view of the precision transmission lead screw structure of the X-ray industrial inspection equipment proposed in this utility model;

[0025] Figure 3 This is a cross-sectional view of the precision transmission lead screw structure of the X-ray industrial inspection equipment proposed in this utility model;

[0026] Figure 4 This is a partial structural exploded view of the precision transmission lead screw structure of the X-ray industrial inspection equipment proposed in this utility model;

[0027] Figure 5This diagram illustrates the heat dissipation mechanism of the precision transmission lead screw structure in the X-ray industrial inspection equipment proposed in this utility model.

[0028] Legend:

[0029] 1. Outer shell; 2. Heat dissipation mechanism; 201. Motor; 202. First gear; 203. Connecting plate; 204. Fan; 205. Rack; 206. First slider; 207. First slide rail; 3. Carrying plate; 4. Servo motor; 5. Second gear; 6. Ball bearing nut; 7. Third gear; 8. Connecting rod; 9. Slot; 10. Spring; 11. Engaging block; 12. Fixing block; 13. Second slide rail; 14. Second slider; 15. Warning light; 16. Protective shell; 17. Protective door; 18. Hinge; 19. Handle; 20. Screw; 21. Placement plate; 22. Hinge; 23. Connecting frame; 24. Roller; 25. Glass; 26. First lead screw; 27. Fixing rod. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a precision transmission lead screw structure for X-ray industrial inspection equipment, including a housing 1. A carrying plate 3 is disposed inside the housing 1 for placing the object to be inspected. A servo motor 4 is fixedly connected to the inner top wall of the housing 1. A second gear 5 is fixedly connected to the output end of the servo motor 4. A first lead screw 26 is fixedly connected to the inner wall of the second gear 5. A ball nut 6 is threadedly connected to the outer wall of the first lead screw 26, providing a smoother connection. A fixing rod 27 penetrates the outer wall of the ball nut 6 and is fixedly connected to the upper and lower sides of the inner wall of the housing 1. A third gear 7 is disposed on the rear inner side of the housing 1, meshing with the second gear 5. A connecting rod 8 is fixedly connected to the inner wall of the third gear 7, serving a locking function. The connecting rod 8 is slidably connected to the upper and lower inner sides of the housing 1. A groove 9 is provided on the outer wall of the connecting rod 8. The ball nut 6... A spring 10 is fixedly connected to the rear side of the outer wall. The spring 10 engages the locking block 11 into the slot 9. A fixing block 12 is fixedly connected to the rear side of the outer wall of the ball nut 6. The other end of the spring 10 is fixedly connected to the locking block 11. The locking block 11 is located inside the fixing block 12. A connecting rod 8 passes through the middle of the top wall of the fixing block 12. The locking block 11 is located inside the slot 9. A second slider 14 is fixedly connected to the rear side of the outer wall of the fixing block 12. The second slider 14 makes the sliding of the fixing block 12 smoother. A second slide rail 13 is slidably connected to the rear side of the outer wall of the second slider 14. The second slide rail 13 is fixedly connected to the rear side of the inner wall of the outer shell 1. A heat dissipation mechanism 2 is fixedly connected to the left side of the inner wall of the outer shell 1. The heat dissipation mechanism 2 is used to dissipate heat from the device inside the outer shell 1. A hinge 22 is fixedly connected to the right side of the outer wall of the outer shell 1. The hinge 22 allows the placement plate 21 to close. The other side of the hinge 22 is fixedly connected to the placement plate 21.

[0032] Reference Figure 1 , Figure 3 and Figure 5The heat dissipation mechanism 2 includes a motor 201, which provides more precise transmission. A first gear 202 is fixedly connected to the output end of the motor 201. A first slide rail 207 is fixedly connected to the left side of the inner wall of the outer casing 1. A first slider 206 is slidably connected to the right side of the outer wall of the first slide rail 207. A rack 205 is fixedly connected to the right side of the outer wall of the first slider 206. The rack 205 meshes more tightly with the first gear 202, and the rack 205 and the first gear 202 are meshed together. A connecting element is fixedly connected to the rear side of the outer wall of the first gear 202. A fan 204 is installed on the right side of the outer wall of the plate 203, which dissipates heat from the device. A hinge 18 is fixedly connected to the left side of the outer wall of the outer shell 1. A protective door 17 is fixedly connected to the other side of the hinge 18. The protective door 17 protects the device. A handle 19 is provided on the front side of the outer wall of the protective door 17. Screws 20 are threadedly connected to the upper and lower ends of the outer wall of the handle 19. The handle 19 makes it easy to open the protective door 17. The handle 19 is threadedly connected to the outer shell 1 through the screws 20. A glass 25 is installed in the middle of the outer wall of the protective door 17.

[0033] Reference Figure 1 and Figure 2 Connecting brackets 23 are fixedly connected to the four corners of the bottom wall of the outer casing 1. The connecting brackets 23 are used for connection. Rollers 24 are slidably connected to the bottom wall of the connecting brackets 23. A warning light 15 is installed on the right side of the top wall of the outer casing 1. The warning light 15 alerts people that the device has a problem. A protective shell 16 is installed on the top wall of the warning light 15.

[0034] Working principle: When the object on the carrying plate 3 is too heavy, the ball nut 6 will slide downward due to gravity. To avoid this, a third gear 7 is set on the rear side of the second gear 5. When the third gear 7 stops rotating due to the second gear 5, the connecting rod 8 will also stop rotating. The spring 10 on the front side of the ball nut 6 will push the locking block 11 into the slot 9 on the connecting rod 8 within the fixing block 12 for locking. Through the locking of the locking block 11, the ball nut 6 and the carrying plate 3 are firmly fixed on the connecting rod 8, and the fixing block 12 will slide up and down with the ball nut 6. The second slider 14 and the second slide rail 13 facilitate the sliding of the fixing block 12.

[0035] When the temperature inside the outer casing 1 is too high, the motor 201 is started, which causes the first gear 202 to rotate. The first gear 202 moves the rack 205 up and down. The rack 205 is fixed by the first slider 206. The first slider 206 slides up and down in the first slide rail 207. The connection between the first slider 206 and the first slide rail 207 makes the rack 205 slide more smoothly. The connecting plate 203 fixed on the rack 205 will move up and down with the rack 205, and move the fan 204 on the connecting plate 203 up and down. The fan 204 evenly dissipates heat from the device inside the motor 201.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision transmission lead screw structure for X-ray industrial inspection equipment, comprising a housing (1), characterized in that: The inner wall of the outer shell (1) is provided with a carrying plate (3). A servo motor (4) is fixedly connected to the inner top wall of the outer shell (1). A second gear (5) is fixedly connected to the output end of the servo motor (4). A first lead screw (26) is fixedly connected to the inner wall of the second gear (5). A ball nut (6) is threadedly connected to the outer wall of the first lead screw (26). A fixing rod (27) passes through the outer wall of the ball nut (6). The fixing rod (27) is fixedly connected to the upper and lower sides of the inner wall of the outer shell (1). A third gear (7) is provided on the inner rear side of the outer shell (1). The third gear (7) meshes with the second gear (5). A connecting rod (8) is fixedly connected to the inner wall of the third gear (7). The connecting rod (8) is slidably connected to the upper and lower sides of the inner wall of the outer shell (1). A slot is provided on the outer wall of the connecting rod (8). 9) A spring (10) is fixedly connected to the rear side of the outer wall of the ball nut (6). A fixing block (12) is fixedly connected to the rear side of the outer wall of the ball nut (6). A locking block (11) is fixedly connected to the other end of the spring (10). The locking block (11) is located inside the fixing block (12). A connecting rod (8) passes through the middle of the top wall of the fixing block (12). The locking block (11) is located inside the slot (9). A second slider (14) is fixedly connected to the rear side of the outer wall of the fixing block (12). A second slide rail (13) is slidably connected to the rear side of the outer wall of the second slider (14). The second slide rail (13) is fixedly connected to the rear side of the inner wall of the outer shell (1). A heat dissipation mechanism (2) is fixedly connected to the left side of the inner wall of the outer shell (1). The heat dissipation mechanism (2) is used to dissipate heat from the device inside the outer shell (1).

2. The precision transmission lead screw structure for X-ray industrial inspection equipment according to claim 1, characterized in that: The heat dissipation mechanism (2) includes a motor (201), the output end of which is fixedly connected to a first gear (202). A first slide rail (207) is fixedly connected to the left side of the inner wall of the housing (1). A first slider (206) is slidably connected to the right side of the outer wall of the first slide rail (207). A rack (205) is fixedly connected to the right side of the outer wall of the first slider (206). The rack (205) and the first gear (202) are meshed together. A connecting plate (203) is fixedly connected to the rear side of the outer wall of the first gear (202). A fan (204) is installed on the right side of the outer wall of the connecting plate (203).

3. The precision transmission lead screw structure for X-ray industrial inspection equipment according to claim 1, characterized in that: A hinge (18) is fixedly connected to the left side of the outer wall of the outer shell (1), and a protective door (17) is fixedly connected to the other side of the hinge (18).

4. The precision transmission lead screw structure for X-ray industrial inspection equipment according to claim 3, characterized in that: A handle (19) is provided on the front side of the outer wall of the protective door (17). Screws (20) are threaded to the upper and lower ends of the outer wall of the handle (19). The handle (19) is threaded to the outer shell (1) through the screws (20).

5. The precision transmission lead screw structure for X-ray industrial inspection equipment according to claim 3, characterized in that: A glass (25) is installed in the middle of the outer wall of the protective door (17).

6. The precision transmission lead screw structure for X-ray industrial inspection equipment according to claim 1, characterized in that: A hinge (22) is fixedly connected to the right side of the outer wall of the outer casing (1), and a placement plate (21) is fixedly connected to the other side of the hinge (22).

7. The precision transmission lead screw structure for X-ray industrial inspection equipment according to claim 1, characterized in that: Connecting frames (23) are fixedly connected to the four corners of the bottom wall of the outer shell (1), and rollers (24) are slidably connected to the bottom wall of the connecting frames (23).

8. The precision transmission lead screw structure for X-ray industrial inspection equipment according to claim 1, characterized in that: A warning light (15) is installed on the right side of the top wall of the outer casing (1), and a protective shell (16) is installed on the top wall of the warning light (15).

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