Structure of rotary kiln knocking hammer

Abstract

The utility model discloses a rotary kiln knocking hammer structure, including knock seat, rotation axis, swing bar and hammer head, rotation axis fixedly connected with connecting block, swing bar both ends are fixedly connected with connecting block and hammer head respectively, the knock seat is equipped with kiln lamination surface, the knock seat is equipped with knock surface one side away from kiln lamination surface, the hammer head is connected with knock surface, the knock seat fixedly connected with rotation seat, rotation axis is connected with rotation seat rotation, the knock seat fixedly connected with baffle, baffle fixedly connected with flexible pad, the flexible pad is connected with swing bar one side away from knock surface.

Description

Technical Field

[0001] This utility model relates to the technical field of hammer structures, specifically to a rotary kiln hammer structure. Background Technology

[0002] Rotary kilns are widely used in material handling for heating, drying, and mixing materials. However, during operation, uneven mixing often occurs, leading to inconsistent product quality and low production efficiency. Current technologies typically improve mixing by adjusting the kiln's rotation speed and tilt angle, but these methods have limited effectiveness.

[0003] Chinese utility model patent CN204987914U discloses an external striking device for a rotary kiln. The device features a guide wheel welded to the outer wall of the drum; a support shaft is installed outside the drum, a connecting rod is mounted on the support shaft, and a hammer is fixed to the connecting rod. Activated carbon material enters the drum, causing the drum to rotate and roll the guide wheel. The hammer moves upwards in an arc from the bottom of the guide wheel, centered on the support shaft, along the guide wheel's arc. When the hammer detaches from the top of the guide wheel, it strikes the drum downwards under gravity, transmitting the impact force to the inner wall of the drum. This loosens and removes any adhering material, thus solving the problems of material buildup in the drum and carbon powder sticking to the wall, and preventing material backflow. However, in actual use, a support bracket is still required to support the support shaft, resulting in an excessively large overall device size, occupying too much space, and potentially causing inconvenience to production activities. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a rotary kiln hammer structure, which includes a hammer seat, a rotating shaft, a swing arm and a hammer head. This rotary kiln hammer structure has the advantage of occupying less space.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0006] A rotary kiln striking hammer structure includes a striking base, a rotating shaft, a swing arm, and a hammer head. The rotating shaft is fixedly connected to a connecting block. Both ends of the swing arm are fixedly connected to the connecting block and the hammer head, respectively. The striking base has a kiln-fitting surface, and the side of the striking base away from the kiln-fitting surface has a striking surface. The hammer head is engaged with the striking surface. The striking base is fixedly connected to a rotating base, and the rotating shaft is rotatably connected to the rotating base. The striking base is fixedly connected to a baffle, and the baffle is fixedly connected to a flexible pad. The flexible pad is engaged with the side of the swing arm away from the striking surface.

[0007] With this configuration, the rotary kiln hammer structure only needs to be connected to the side wall of the rotary kiln, without the need for an additional support frame, thus occupying little space and having the advantage of small size.

[0008] It has a simple and reliable structure, is easy to manufacture, has a long service life, and is easy to inspect and maintain.

[0009] By transmitting impact force to the rotary kiln through the striking base, the impact force can be evenly transmitted to the rotary kiln using the contact surface, preventing the hammer from directly hitting the rotary kiln and causing it to crack, thus protecting the rotary kiln.

[0010] Preferably, the bonding surface is arc-shaped.

[0011] This design allows the curved contact surface to fit tightly against the outer wall of the rotary kiln, improving the structural stability between the rotary kiln and the striking seat.

[0012] Preferably, the radial direction of the contact surface is perpendicular to the position where the striking surface contacts the hammer head.

[0013] This configuration allows the hammerhead to apply a radial impact force along the contact surface and the rotary kiln on the striking surface, effectively reducing the force on the striking seat along the circumference of the rotary kiln and ensuring that the impact force on the striking seat can be stably transmitted to the rotary kiln.

[0014] Preferably, the baffle is fixedly connected to the rotating seat.

[0015] This setup ensures the baffle structure remains stable.

[0016] Preferably, the swing arm is perpendicular to the striking surface when it comes into contact with the flexible pad.

[0017] This setup enables the top of the rotary kiln to be struck from above, causing the material adhering to the inner wall of the rotary kiln to vibrate and fall off due to gravity, thus detaching the material from the inner wall of the rotary kiln.

[0018] Preferably, the striking surface and the rotating seat are located at opposite ends of the striking seat.

[0019] This design makes the structure more compact and reduces the space it occupies.

[0020] Preferably, the thickness of the striking seat at the end near the striking surface is less than the thickness of the striking seat at the end near the rotating seat.

[0021] This design ensures that the striking seat can stably support the rotating seat when the hammerhead strikes the striking surface, thus guaranteeing the reliability of the structure.

[0022] Preferably, the hammerhead has a collision surface that conforms to the striking surface.

[0023] This design allows for a more even distribution of force when the hammer strikes the striking base, thus contributing to structural stability.

[0024] Preferably, the device also includes an annular plate, and the striking seat is fixedly connected to a connecting plate. The annular plate is mounted on the connecting plate, and the radius of the arc of the mating surface is smaller than the radius of the arc of the connecting plate.

[0025] This setup allows the striking seat to be hung on the rotary kiln via a ring plate, preventing it from falling from the kiln surface to the ground during operation, thus preventing personnel from being injured and improving safety.

[0026] Preferably, the annular plate has a through groove extending radially along the annular plate, through which a screw passes, the screw engaging with the annular plate and being threadedly connected to the connecting plate.

[0027] This configuration allows the screw to move within the slot, adapting to the radial offset of the striking seat along the annular plate, ensuring that the screw can connect to the striking seat.

[0028] Compared with the prior art, this utility model has achieved beneficial technical effects:

[0029] 1. This rotary kiln hammer structure only needs to be connected to the side wall of the rotary kiln, without the need for an additional support frame, thus occupying little space and having the advantage of small size.

[0030] 2. The structure is simple and reliable, easy to manufacture, has a long service life, and is easy to inspect and maintain.

[0031] 3. By transmitting the impact force to the rotary kiln through the striking base, the impact force can be evenly transmitted to the rotary kiln using the contact surface, preventing the hammer from directly hitting the rotary kiln and causing it to crack, thus protecting the rotary kiln. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a rotary kiln hammer structure according to an embodiment of the present invention;

[0033] Figure 2 This is a disassembly diagram of the annular plate, screw, and washer in an embodiment of this utility model;

[0034] Figure 3 This is a front view of a rotary kiln hammer structure according to an embodiment of this utility model;

[0035] Figure 4 This is a schematic diagram showing the state of a rotary kiln hammer structure installed on a rotary kiln in an embodiment of this utility model.

[0036] The technical features referred to by the various reference numerals in the accompanying drawings are as follows:

[0037] 11. Striking seat; 12. Striking surface; 13. Contact surface; 14. Connecting plate; 21. Rotating seat; 22. Rotating shaft; 23. Connecting block; 24. Rocker arm; 25. Hammer head; 26. Collision surface; 31. Baffle; 32. Flexible pad; 41. Annular plate; 42. Through groove; 43. Screw; 44. Gasket; 51. Rotary kiln. Detailed Implementation

[0038] To make the objectives, technical solutions and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments. However, the scope of protection of this utility model is not limited to the specific embodiments described below.

[0039] refer to Figure 1-4 A rotary kiln hammer structure includes a hammer base 11, a rotating shaft 22, a swing arm 24, a hammer head 25, and an annular plate 41. The hammer base 11 has a kiln-fitting surface 13. The hammer base 11 is moved onto the rotary kiln 51 so that the kiln-fitting surface 13 fits against the rotary kiln 51. Then, the hammer base 11 is fixed to the rotary kiln 51 by welding or screws 43. The fitting surface 13 is generally arc-shaped. The radial direction of the fitting surface 13 is perpendicular to the position where the hammer surface 12 contacts the hammer head 25.

[0040] A rotating seat 21 is fixedly connected to the striking base 11. A rotating shaft 22 is rotatably connected to the rotating seat 21. A connecting block 23 is fixedly connected to the rotating shaft 22. The two ends of the swing rod 24 are fixedly connected to the connecting block 23 and the hammer head 25, respectively. When the hammer head 25 and the swing rod 24 rotate downwards due to gravity, the rotating shaft 22 rotates on the rotating seat 21, realizing the function of the swing rod 24, the hammer head 25, and the rotating shaft 22 rotating on the rotating seat 21. A striking surface 12 is provided on the side of the striking base 11 away from the kiln contact surface 13. The hammer head 25 is engaged with the striking surface 12, and the hammer head 25 has a collision surface 26 that contacts the striking surface 12. The striking surface 12 and the rotating seat 21 are located at opposite ends of the striking base 11. The thickness of the striking base 11 near the striking surface 12 is less than the thickness of the striking base 11 near the rotating seat 21.

[0041] A baffle 31 is fixedly connected to the striking base 11, and a flexible pad 32 is fixedly connected to the baffle 31. The flexible pad 32 engages with the side of the swing rod 24 away from the striking surface 12. When the swing rod 24 abuts against the flexible pad 32, the swing rod 24 is perpendicular to the striking surface 12. The baffle 31 is fixedly connected to the rotating base 21.

[0042] Two connecting plates 14 are fixedly connected to the striking base 11. Two annular plates 41 are also provided, mounted on the connecting plates 14. The two annular plates 41 and the two connecting plates 14 correspond one-to-one. The radius of the arc of the contact surface 13 is smaller than the radius of the arc of the connecting plate 14. The annular plate 41 has a through groove 42 extending radially along the annular plate 41. A screw 43 passes through the through groove 42, engaging with the annular plate 41 and threadedly connecting with the connecting plate 14. A total of four striking bases 11, four rotating shafts 22, four swing rods 24, and four hammers 25 are provided, each corresponding to one other. The four striking bases 11 are evenly distributed around the circumference of the rotary kiln 51, ensuring that the center of gravity of the four striking bases 11 is located at the axis of the rotary kiln 51, thus maintaining the stability of the rotary kiln 51 during rotation. Because the radius of the arc of the mating surface 13 is smaller than that of the connecting plate 14, there is a gap between the annular plate 41 and the rotary kiln 51. Since the surface profile of the rotary kiln 51 has a certain tolerance, a gap is provided between the annular plate 41 and the rotary kiln 51 to prevent the rotary kiln 51 from jamming the annular plate 41 and preventing it from connecting to the striking seat 11. The screw 43 is fitted with a washer 44 that engages with the annular plate 41. The washer 44 increases the contact area between the screw 43 and the annular plate 41, improving the stability between them. The annular plate 41 also provides support between the four striking seats 11, improving the overall reliability of the four striking seats 11.

[0043] Specific work process:

[0044] When the rotary kiln 51 is in operation, it rotates, causing the striking seat 11 on the outer wall of the rotary kiln 51 to rotate. When the striking seat 11 rotates with the rotary kiln 51 to the lower side of the rotary kiln 51, the hammer 25 and the swing rod 24 rotate downwards due to gravity, causing the hammer 25 and the swing rod 24 to swing towards the baffle 31. The rotary kiln 51 continues to rotate, causing the striking seat 11, the baffle 31, and the flexible pad 32 to block the swing rod 24. As the striking seat 11 and the baffle 31 rotate with the rotary kiln 51, the baffle 31 can support the swing rod 24 to rotate with the rotary kiln 51, allowing the swing rod 24 and the hammer 25 to move above the striking seat 11 as the rotary kiln 51 rotates. When the striking seat 11 rotates with the rotary kiln 51 to the upper side of the rotary kiln 51, the hammer 25 is located at the upper end of the swing rod 24. When the swing arm 24 rotates with the rotary kiln 51 and reaches a state where the upper end of the swing arm 24 is tilted away from the baffle 31, the pressure applied by the hammer head 25 on the swing arm 24 can form a component force in the direction away from the baffle 31. Through the action of gravity, the hammer head 25 accelerates towards the striking surface 12 and collides, thereby causing the hammer head 25 to strike the striking seat 11. The vibration generated on the striking seat 11 is transmitted to the rotary kiln 51, causing the material inside the rotary kiln 51 to vibrate, causing the material adhering to the inner wall of the rotary kiln 51 to fall off the inner wall of the rotary kiln 51, and also causing the material inside the rotary kiln 51 to vibrate, promoting uniform mixing of the material.

[0045] This embodiment has the following advantages:

[0046] The rotary kiln hammer structure only needs to be connected to the side wall of the rotary kiln 51, without the need for an additional support frame, thus occupying little space and having the advantage of small size.

[0047] It has a simple and reliable structure, is easy to manufacture, has a long service life, and is easy to inspect and maintain.

[0048] The impact force is transmitted to the rotary kiln 51 by the striking seat 11, so that the impact force can be evenly transmitted to the rotary kiln 51 by the contact surface 13, preventing the hammer head 25 from directly hitting the rotary kiln 51 and causing the rotary kiln 51 to crack, thus protecting the rotary kiln 51.

[0049] The arc-shaped mating surface 13 can fit tightly against the outer wall of the rotary kiln 51, enabling the rotary kiln 51 to stably support the mating surface 13 and improve the structural stability between the rotary kiln 51 and the striking seat 11.

[0050] Since the radial direction of the contact surface 13 is perpendicular to the contact point between the striking surface 12 and the hammer head 25, when the hammer head 25 strikes the striking surface 12, the direction of the impact force applied by the hammer head 25 on the striking surface 12 is perpendicular to the striking surface 12. This allows the hammer head 25 to apply a radial impact force along the contact surface 13 and the rotary kiln 51 on the striking surface 12, effectively reducing the force on the striking seat 11 along the circumference of the rotary kiln 51, and ensuring that the impact force received by the striking seat 11 can be stably transmitted to the rotary kiln 51. Furthermore, the radial impact force on the side wall of the rotary kiln 51 can also cause the material inside the rotary kiln 51 to vibrate radially, further improving the ability to remove material adhering to the inner wall of the rotary kiln 51 and improving the mixing effect of the material.

[0051] By providing support to the baffle 31 at different positions through the rotating seat 21 and the striking seat 11, the structure of the baffle 31 remains stable.

[0052] When the rotary kiln hammer structure moves to the top of the rotary kiln 51 with the rotary kiln 51, the swing arm 24 is in a vertical state. Then the rotary kiln 51 continues to drive the rotary kiln hammer structure to move, so that the upper end of the swing arm 24 immediately tilts towards the striking surface 12, thereby causing the swing arm 24 and the hammer head 25 to swing towards the striking surface 12 and the hammer head 25 to hit the striking surface 12, realizing the function of striking the top of the rotary kiln 51 from top to bottom, causing the material adhering to the inner wall of the rotary kiln 51 to be vibrated and fall off under the action of gravity, causing the material to fall off the inner wall of the rotary kiln 51.

[0053] The striking surface 12 and the rotating seat 21 are respectively set at both ends of the striking seat 11, ensuring that the swing rod 24 and the hammer head 25 on the rotating seat 21 can rotate toward the striking surface 12, ensuring that the hammer head 25 can strike the striking surface 12, while making the structure more compact and reducing the space occupied by the structure.

[0054] The striking seat 11 has a larger thickness at the end near the rotating seat 21, which makes the striking seat 11 at the rotating seat 21 structurally stronger, ensuring that the striking seat 11 can stably support the rotating seat 21 when the hammer head 25 strikes the striking surface 12, thereby ensuring the reliability of the structure.

[0055] The hammerhead 25 is in contact with the striking surface 12 through the collision surface 26, so that the force is more even when the hammerhead 25 hits the striking seat 11, preventing damage to the hammerhead 25 during the collision and reducing the lateral torque on the rotating shaft 22, thus playing a role in structural stability.

[0056] Both the connecting plate 14 and the baffle 31 are perpendicular to the striking surface 12, and the connecting plate 14 and the baffle 31 are also perpendicular to each other. The connecting plate 14, the baffle 31, and the striking surface 12 are integrally formed. Therefore, the connecting plate 14 and the baffle 31 can provide support forces in different directions to the striking seat 11, which effectively improves the structural stability of the striking seat 11, prevents the striking seat 11 from breaking when it collides with the hammer head 25, and improves its service life.

[0057] The annular plate 41 is fitted onto the rotary kiln 51. Even if the mating surface 13 accidentally falls off the rotary kiln 51, the striking seat 11 can be hung on the rotary kiln 51 by the annular plate 41, which prevents the striking seat 11 from falling off the surface of the rotary kiln 51 to the ground during operation, thus preventing personnel from being injured and improving safety.

[0058] Because the surface profile of the rotary kiln 51 has certain tolerances, the striking seat 11 fixed on the surface of the rotary kiln 51 often also has a certain radial offset. When the screw 43 passes through the through groove 42 extending radially along the annular plate 41, the screw 43 can adapt to the position of the striking seat 11 that is radially offset along the annular plate 41 and move within the through groove 42, ensuring that the screw 43 can be connected to the striking seat 11.

[0059] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the utility model.

Claims

1. A rotary kiln hammer structure, comprising a hammer base (11), a rotating shaft (22), a swing rod (24), and a hammer head (25), wherein the rotating shaft (22) is fixedly connected to a connecting block (23), and both ends of the swing rod (24) are fixedly connected to the connecting block (23) and the hammer head (25), respectively, characterized in that: The striking seat (11) is provided with a kiln-fitting surface (13). The side of the striking seat (11) away from the kiln-fitting surface (13) is provided with a striking surface (12). The hammer head (25) is engaged with the striking surface (12). The striking seat (11) is fixedly connected to a rotating seat (21). The rotating shaft (22) is rotatably connected to the rotating seat (21). The striking seat (11) is fixedly connected to a baffle (31). The baffle (31) is fixedly connected to a flexible pad (32). The flexible pad (32) is engaged with the side of the swing rod (24) away from the striking surface (12).

2. The rotary kiln hammer structure according to claim 1, characterized in that: The bonding surface (13) is generally arc-shaped.

3. The rotary kiln hammer structure according to claim 2, characterized in that: The radial direction of the contact surface (13) is perpendicular to the position where the striking surface (12) contacts the hammer head (25).

4. The rotary kiln hammer structure according to claim 1, characterized in that: The baffle (31) is fixedly connected to the rotating seat (21).

5. The rotary kiln hammer structure according to claim 1, characterized in that: When the swing arm (24) comes into contact with the flexible pad (32), the swing arm (24) is perpendicular to the striking surface (12).

6. The rotary kiln hammer structure according to claim 1, characterized in that: The striking surface (12) and the rotating seat (21) are located at both ends of the striking seat (11).

7. The rotary kiln hammer structure according to claim 6, characterized in that: The thickness of the striking seat (11) near the striking surface (12) is less than the thickness of the striking seat (11) near the rotating seat (21).

8. The rotary kiln hammer structure according to claim 1, characterized in that: The hammerhead (25) is provided with a collision surface (26) that fits against the striking surface (12).

9. The rotary kiln hammer structure according to claim 1, characterized in that: It also includes an annular plate (41), the striking seat (11) is fixedly connected to a connecting plate (14), the annular plate (41) is mounted on the connecting plate (14), and the radius of the arc of the mating surface (13) is smaller than the radius of the arc of the connecting plate (14).

10. The rotary kiln hammer structure according to claim 9, characterized in that: The annular plate (41) is provided with a through groove (42) extending radially along the annular plate (41), and a screw (43) is inserted through the through groove (42). The screw (43) is engaged with the annular plate (41) and threadedly connected to the connecting plate (14).

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