Gear type hot bar clamping structure facilitating mechanized installation

Abstract

This invention discloses a gear-type heat rod clamping structure that facilitates mechanized installation, relating to the field of clamping structure technology. The invention includes: a housing; a rotating shaft at the top center of the housing; a central gear at the bottom of the rotating shaft; planetary gears surrounding the central gear; a gear shaft at the center of the planetary gears; a bracket passing through the planetary gears at the bottom of the gear shaft; a rotating plate at the bottom of the bracket; a U-shaped plate at the bottom of the connecting shaft; and clamping claws at the bottom of the U-shaped plate. This invention uses the planetary gear structure to drive the rotating plate to rotate. The connecting shaft within the rotating plate is limited by a helical groove and a sliding rod to move the clamping device. A single drive source drives three clamping devices to move synchronously towards the center to clamp the heat rod. During clamping, the heat rod is located in the center position, making the entire clamping action more stable and preventing the heat rod from shifting or loosening during the clamping process.

Description

Technical Field

[0001] This invention belongs to the field of clamping structure technology, specifically, it relates to a gear-type heat rod clamping structure that is easy to install mechanically. Background Technology

[0002] During the blast furnace smelting process, the hearth area needs to withstand extremely high heat loads and mechanical wear. In order to extend the service life of the blast furnace, heat pipes (also known as heat pipes or cooling columns) are often buried in the hearth area. By utilizing the phase change heat transfer characteristics of the working fluid inside the heat pipes, the heat of the hearth is quickly transferred to the external cooling medium, thereby effectively reducing the furnace lining temperature and protecting the furnace shell structure.

[0003] Chinese Patent Publication No. CN120903804A discloses a heat rod clamping tool, relating to the field of liquid crystal glass substrate processing and manufacturing technology. It mainly consists of a main frame, a fixed clamp, a movable clamp, a hinge, a main handle, a secondary handle, a connecting rod, and a spring telescopic component. The fixed clamp is connected to the bottom of the main frame, and the movable clamp, located directly above the fixed clamp, is slidably connected internally. A "V"-shaped clamping groove is provided on the adjacent end faces of the two clamps. The main handle is connected to the outside of the main frame, and the bottom of the main handle is rotatably connected to the secondary handle. A connecting rod is rotatably connected between the hinge and the secondary handle. The ends of the main and secondary handles are rotatably connected to the spring telescopic component.

[0004] While the aforementioned existing technologies have solved the safety issues of direct human contact with high-temperature heat pipes, they still rely on manual clamping, and the clamping stability is greatly affected by the operator's strength and experience. Furthermore, they are difficult to quickly connect with mechanized equipment and automate installation, and cannot meet the automation and efficiency requirements of modern production lines for heat pipe replacement operations. Therefore, this invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a gear-type heat rod clamping structure that is easy to install mechanically, thus solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: A gear-type heat rod clamping structure for easy mechanized installation includes: a housing, characterized in that: a rotating shaft is provided at the center of the top of the housing; a central gear is provided at the bottom of the rotating shaft; planetary gears are provided around the central gear; the outer rings of the planetary gears are provided with threaded outer rings; a gear rotating shaft is provided at the center of the planetary gears; a bracket is provided passing through the planetary gears at the bottom of the gear rotating shaft; a rotating plate is provided at the bottom of the bracket; a spiral groove is formed on the surface of the rotating plate; a connecting shaft is provided inside the spiral groove; a sliding rod is installed through the connecting shaft; a central seat is provided at the center of the bottom of the rotating plate; a U-shaped plate is provided at the bottom of the connecting shaft; a clamping claw is provided at the bottom of the U-shaped plate; and a clamping block is provided on the inward side of the clamping claw.

[0007] Optionally, the planetary gear, the rotating plate, and their corresponding connecting structures are each provided in three sets.

[0008] Optionally, a shaft connecting plate is provided on the top of the gear shaft, and a fixed outer ring is provided on the outer ring of the shaft connecting plate.

[0009] Optionally, an embedding platform is fixedly connected to the top of the spiral groove near the edge, and a boss is provided on the outer ring of the connecting shaft and inserted into the embedding platform. Ball bearings are embedded around the boss.

[0010] Optionally, a spring is fitted onto the outer region of the slide bar surface located on the connecting shaft.

[0011] Optionally, a limiting platform is fixedly connected to the inner wall of the outer shell, and the rotating plate is inserted into the limiting platform.

[0012] Optionally, a sleeve is provided below the rotating plate inside the outer shell, and the sleeve has an opening corresponding to the position of the sliding rod.

[0013] Optionally, the top of the rotating shaft is provided with a rotating shaft interface, the outer surface of the housing is provided with a U-shaped lower clamp, the top of the housing is provided with a connecting ring, the top of the U-shaped lower clamp is provided with a U-shaped upper clamp, and the U-shaped lower clamp and the U-shaped upper clamp are connected by fasteners.

[0014] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time: 1. This gear-type heat rod clamping structure, which is easy to install mechanically, drives the planetary gears on the rotating shaft to rotate the rotating plate. The connecting shaft inside the rotating plate moves the clamping device through the spiral groove and the sliding rod limit. A single drive source drives the three clamping devices to move synchronously towards the center to clamp the heat rod, ensuring that all clamping devices always remain in the same position at the center. When clamping, the heat rod is located in the center position, making the entire clamping action more stable. The position of the heat rod will not shift or loosen during the clamping process.

[0015] 2. This gear-type heat rod clamping structure, which is easy to install mechanically, connects the rotating shaft interface and the output shaft of the output motor through a U-shaped buckle, so as to realize the quick installation and fixation of the overall structure. It can achieve synchronous movement of the three claws with only a single drive structure. The long range of movement of the clamping claws allows the device to clamp heat rods of various diameters, making it more flexible to use.

[0016] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the bottom of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a schematic diagram of an explosion inside the outer casing of the present invention; Figure 5 This is a schematic diagram of the bottom of the rotating plate of the present invention; Figure 6 This is a top view of the rotating plate of the present invention.

[0018] The attached diagram lists the components represented by each number as follows: 1. Outer shell; 2. Rotating shaft; 3. Fixed outer ring; 4. Shaft connecting plate; 5. Threaded outer ring; 6. Planetary gear; 7. Central gear; 8. Gear shaft; 9. Bracket; 10. Rotating plate; 11. Helical groove; 12. Embedding platform; 13. Connecting shaft; 14. Boss; 15. Ball bearing; 16. Slide rod; 17. Spring; 18. Limiting platform; 19. Sleeve; 20. Movable opening; 21. U-shaped plate; 22. Clamping claw; 23. Clamping block; 24. U-shaped lower clamp; 25. Connecting ring; 26. U-shaped upper clamp; 27. Fastener; 28. Center seat.

[0019] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0020] The invention will now be described in further detail with reference to the accompanying drawings.

[0021] Please see Figure 1-6 As shown, this embodiment provides a gear-type heat rod clamping structure that facilitates mechanized installation, including: a housing 1.

[0022] like Figure 1-6As shown, in this embodiment, a rotating shaft 2 is located at the center of the top of the outer casing 1. The rotating shaft 2 is connected to an external drive motor, which drives the rotating shaft 2 to rotate. A central gear 7 is located at the bottom of the rotating shaft 2, and planetary gears 6 are arranged around the central gear 7. The outer ring of the planetary gears 6 is provided with a threaded outer ring 5. The three of them form a conventional planetary gear structure. The planetary gears 6 mesh with the central gear 7 and the outer threaded outer ring 5 respectively. The rotating shaft 2 drives the central gear 7 to rotate, and the planetary gears 6 rotate around the central gear 7 while revolving around it, realizing the circular motion of the planetary gears 6. A gear shaft 8 is located at the center of the planetary gears 6. A bracket 9 is provided at the bottom of the gear shaft 8, passing through the planetary gears 6. A rotating plate 10 is provided, and a gear shaft 8 is mounted on a planetary gear 6 via a sleeve bearing. This allows the gear shaft 8 to overcome the rotation of the planetary gear 6. The rotation of the two gears is independent of each other. The rotation of the rotating plate 10 is driven by the gear shaft 8 pulling the bracket 9 through the revolution of the planetary gear 6. A spiral groove 11 is formed on the surface of the rotating plate 10. The bracket 9 spans across the spiral groove 11, with both ends bent downwards and fitted against the surface of the rotating plate 10, and fixed with screws. This allows the gear shaft 8 to drive the rotating plate 10 to rotate. The spiral groove 11 is arc-shaped, with one end located near the outermost edge of the rotating plate 10 and the other end located near the center of the rotating plate 10 on the other side edge. The two ends are connected by an arc protruding to one side. A connecting shaft is provided inside the spiral groove 11. 13. A connecting shaft 13 passes vertically through a spiral groove 11. A slide rod 16 is installed inside the connecting shaft 13. The slide rod 16 is located below the rotating plate 10 and points towards the center of the rotating plate 10. The slide rod 16 can limit the connecting shaft 13, preventing it from making circular motion. As the rotating plate 10 rotates, the spiral groove 11 guides the connecting shaft 13. The spiral groove 11 and the slide rod 16 always have an intersection point, which is the position of the connecting shaft 13. This position changes as the rotating plate 10 moves. The position is adjusted by moving the slide rod 16 to change its distance from the center. A center seat 28 is provided at the center of the bottom of the rotating plate 10. One end of the slide rod 16 is fixed to the inner wall of the outer shell 1, and the other end is fixed to the center seat 28. To support the slide bar 16 and ensure the stability of the connecting shaft 13 during movement, a U-shaped plate 21 is provided at the bottom of the connecting shaft 13. The U-shaped plate 21 is fixed to the bottom of the connecting shaft 13 with screws. A clamping claw 22 is provided at the bottom of the U-shaped plate 21. The clamping claw 22 is also installed at the other end of the U-shaped plate 21 with screws. The clamping claw 22 and the connecting shaft 13 are connected and fixed through the U-shaped plate 21. The clamping claw 22 has a clamping block 23 facing inward. The clamping claw 22 is L-shaped in general. The short side is installed on the U-shaped plate 21, and the long side faces away from the center of the device. Multiple sets of clamping blocks 23 are installed on the back side with screws. The screws are located at the center of the clamping blocks 23. The center of the clamping blocks 23 is recessed inward, and the inclined surfaces on both sides facilitate the clamping of the arc surface of the heat rod.

[0023] like Figure 1-6As shown, in this embodiment, the planetary gears 6, the rotating plate 10, and their corresponding connecting structures are all provided in three sets. Among them, the three sets of planetary gears 6 rotate around the central gear 7 and are evenly distributed. The edges of the three sets of rotating plates 10 are fitted together to form a circular rotation. The clamping claws 22 mounted on the connecting shaft 13 are also provided in three sets. The planetary gears 6 control the synchronous movement of the clamping claws 22. The positions of the three sets of clamping claws 22 are evenly distributed. The clamping blocks 23 fit together to form a triangle, making the clamping more stable. In addition, compared with directly driving the rotating plate 10 to rotate, the planetary gear structure reduces the rotation ratio, slows down the running speed of the corresponding structure, reduces the precision requirements of the equipped motor, and reduces the occurrence of internal failures by stabilizing the operation.

[0024] like Figure 3 , 4 As shown, in this embodiment, a shaft connecting plate 4 is provided on the top of the gear shaft 8, and a fixed outer ring 3 is provided on the outer ring of the shaft connecting plate 4. The three gear shafts 8 are connected by the shaft connecting plate 4 and rotate with the planetary gear 6. The shaft connecting plate 4 is fixed by embedding its end into the annular groove of the fixed outer ring 3, and it can rotate in the groove. The fixed outer ring 3 is arranged on the threaded outer ring 5. Both are fixedly attached to the inner wall of the outer shell 1, thereby limiting the gear shaft 8, the bottom bracket 9 and the rotating plate 10 in the vertical direction through the shaft connecting plate 4, preventing some parts from sliding up and down.

[0025] like Figure 3-6 As shown, in this embodiment, an insert platform 12 is fixedly connected to the top of the spiral groove 11 near the edge. A boss 14 is provided on the outer ring of the connecting shaft 13 and inserted into the insert platform 12. The boss 14 fits against the inside of the insert platform 12 and provides support for the connecting seat 13, preventing the connecting shaft 13 from rotating on the slide bar 16 and maintaining the stability of the clamping claw 22. Ball bearings 15 are embedded around the boss 14. The ball bearings 15 reduce the friction generated by the corresponding surface of the boss 14 inside the insert platform 12 as the connecting shaft 13 moves by rolling on the boss 14, making the rotating plate 10 push the connecting shaft 13 more smoothly and the movement of the clamping claw 22 more smoothly.

[0026] like Figure 3 , 5 As shown, in this embodiment, a spring 17 is sleeved on the outer region of the sliding rod 16 located on the connecting shaft 13. The spring 17 plays an auxiliary fixing role on the clamping claw 22 when the overall mechanism clamps the hot rod, and continuously pushes the clamping claw 22 to apply force to the hot rod, reducing the internal vibration caused by the overall structure moving the hot rod to change position during clamping, so as to prevent the clamping claw 22 from becoming loose.

[0027] like Figure 3As shown, in this embodiment, a limiting platform 18 is fixedly connected to the inner wall of the outer shell 1, and the rotating plate 10 is inserted into the limiting platform 18. The limiting platform 18 is located between the threaded outer ring 5 and the inner wall of the outer shell 1 of the fixed slide rod 16. It clamps the rotating plate 10 in a similar structure to the fixed outer ring 3 but does not affect the rotation of the rotating plate 10. The other end of the rotating plate 10 is clamped by a clamping structure similar to the fixed outer ring 3 and the limiting platform 18 set above the center seat 28. The two work together to clamp and fix both ends of the rotating plate 10, so as to prevent the rotating plate 10 from shaking in the vertical direction when rotating.

[0028] like Figure 2 As shown, in this embodiment, a sleeve 19 is provided below the rotating plate 10 inside the outer shell 1. The sleeve 19 has a movable opening 20 corresponding to the position of the slide rod 16. The sleeve 19 covers the bottom opening area of ​​the outer shell 1, and the movable opening 20 at the bottom facilitates the movement of the U-shaped plate 21 and the clamping claw 22.

[0029] like Figure 1 , 2 As shown, the top of the rotating shaft 2 in this embodiment is provided with a rotating shaft interface. The keyway and key on the rotating shaft interface are aligned with the keyway and key on the output shaft of the output motor to connect and fix the two. The corresponding output motor is a bidirectional motor, capable of rotating in both directions to complete the clamping and releasing action. A torque sensor or pre-input rotation angle is required. After the hot rod is clamped, the torque sensor rotates continuously, and the torque on the corresponding output shaft continuously increases until it reaches a set threshold, at which point it stops to identify the completion of the clamping action. Alternatively, the rotation angle of the rotating shaft 2 can be determined by calculating the distance between the clamping block 23 on the clamping claw 22 and the center of the outer shell 1, in conjunction with the radius of the actual hot rod. For hot rods of different radii, further adjustments are needed. The outer surface of the housing 1 is fitted with a U-shaped lower clamp 24, and the top of the housing 1 is fitted with a connecting ring 25. The top of the U-shaped lower clamp 24 is fitted with a U-shaped upper clamp 26. The U-shaped lower clamp 24 and the U-shaped upper clamp 26 are connected by fasteners 27. The connecting ring 25 is placed on the top of the housing 1. The U-shaped upper clamp 26, the U-shaped lower clamp 24 and the connecting ring 25 are fixed by the fasteners 27. The bottom of the U-shaped lower clamp 24 is bent inward to support the housing 1 and fix the entire structure. Before installation, the connection position between the U-shaped lower clamp 24 and the U-shaped upper clamp 26 is adjusted, and the position of the mounting screw on the top of the U-shaped upper clamp 26 is changed to adjust the height of the device to facilitate the connection between the rotating shaft 2 and the output shaft.

[0030] Working principle: This invention drives the rotating shaft 2 to rotate via a drive motor connected to the rotating shaft interface. The rotating shaft 2 drives the central gear 7 to rotate, and the central gear 7 drives the three planetary gears 6 meshing with it to revolve around it. Under the constraint of the outer thread ring 5, the planetary gears 6 drive the rotating plate 10 to rotate synchronously through the gear shaft 8 and the bracket 9. When the rotating plate 10 rotates, the spiral groove 11 on its surface pushes the connecting shaft 13. The connecting shaft 13 moves radially under the limiting action of the slide rod 16. At the same time, the boss 14 and the ball 15 on the top of the connecting shaft 13 are embedded in the stage 12. Rolling reduces friction. The connecting shaft 13 drives the clamping claw 22 and clamping block 23 to move synchronously toward the center seat 28 via the U-shaped plate 21. The spring 17 is sleeved on the outside of the slide rod 16 to assist in buffering and maintain the clamping force, thereby achieving centering and clamping of the heat rod. The limiting platform 18 and the sleeve 19 inside the outer shell 1 provide support and limit for the rotating plate 10 and the slide rod 16, respectively. The U-shaped lower clamp 24, the U-shaped upper clamp 26 and the fastener 27 are used to quickly fix the overall structure to the external robotic arm or drive motor, and also facilitate the adjustment of the height for docking.

[0031] This invention is not limited to the embodiments described above. Anyone should understand that structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention. Technical aspects, shapes, and structures not described in detail in this invention are all publicly known technologies.

Claims

1. A gear-type heat rod clamping structure for easy mechanized installation, comprising: The outer shell (1) is characterized in that a rotating shaft (2) is provided at the center of the top of the outer shell (1), a central gear (7) is provided at the bottom of the rotating shaft (2), a planetary gear (6) is provided around the central gear (7), a threaded outer ring (5) is provided on the outer ring of the planetary gear (6), a gear rotating shaft (8) is provided at the center of the planetary gear (6), a bracket (9) is provided at the bottom of the gear rotating shaft (8) through the planetary gear (6), a rotating plate (10) is provided at the bottom of the bracket (9), a spiral groove (11) is provided on the surface of the rotating plate (10), a connecting shaft (13) is provided inside the spiral groove (11), a slide rod (16) is installed through the connecting shaft (13), a central seat (28) is provided at the center of the bottom of the rotating plate (10), a U-shaped plate (21) is provided at the bottom of the connecting shaft (13), a clamping claw (22) is provided at the bottom of the U-shaped plate (21), and a clamping block (23) is provided on the inward side of the clamping claw (22).

2. The gear-type heat rod clamping structure for easy mechanized installation according to claim 1, characterized in that, The planetary gear (6), the rotating plate (10), and their corresponding connecting structures are all provided in three sets.

3. The gear-type heat rod clamping structure for easy mechanized installation according to claim 1, characterized in that, The top of the gear shaft (8) is provided with a shaft connecting plate (4), and the outer ring of the shaft connecting plate (4) is provided with a fixed outer ring (3).

4. The gear-type heat rod clamping structure for easy mechanized installation according to claim 1, characterized in that, An embedding platform (12) is fixedly connected to the top of the spiral groove (11) near the edge. A boss (14) is provided on the outer ring of the connecting shaft (13) and inserted into the embedding platform (12). Ball bearings (15) are inlaid around the boss (14).

5. The gear-type heat rod clamping structure for easy mechanized installation according to claim 4, characterized in that, A spring (17) is fitted onto the surface of the slide rod (16) on the outer region of the connecting shaft (13).

6. The gear-type heat rod clamping structure for easy mechanized installation according to claim 1, characterized in that, The inner wall of the outer shell (1) is fixedly connected to a limiting platform (18), and the rotating plate (10) is inserted into the limiting platform (18).

7. The gear-type heat rod clamping structure for easy mechanized installation according to claim 1, characterized in that, Below the rotating plate (10), inside the outer shell (1), there is a sleeve (19), and the sleeve (19) has an opening (20) at the position corresponding to the slide rod (16).

8. A gear-type heat rod clamping structure for easy mechanized installation according to any one of claims 1 to 7, characterized in that, The top of the rotating shaft (2) is provided with a rotating shaft interface, the outer surface of the outer shell (1) is provided with a U-shaped lower clip (24), the top of the outer shell (1) is provided with a connecting ring (25), the top of the U-shaped lower clip (24) is provided with a U-shaped upper clip (26), and the U-shaped lower clip (24) and the U-shaped upper clip (26) are connected by fasteners (27).

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