Rotary kiln supporting structure

Abstract

The utility model relates to the technical field of rotary kiln equipment, and discloses a rotary kiln supporting structure which comprises a base table, two symmetrical moving frames are slidably connected to the inner side of the base table, a plurality of supporting frames are fixedly connected to the upper portions of the two moving frames, and a rotary kiln body is arranged above the base table. According to the rotary kiln supporting structure, the fixed seat is rotationally connected with the first lead screw and is driven by the first servo motor, so that the supporting seat forms continuous linear displacement in thread transmission on the outer surface of the first lead screw, the limitation of a traditional insertion hole type fixed distance is broken through, and stepless fine adjustment of a supporting position is realized; and meanwhile, the fine adjustment of the fine adjustment assembly is matched, so that the supporting seat can carry out tiny displacement adjustment, fine adjustment of the supporting position is realized, the mounting seat and the balls can dynamically adapt to curvature changes of barrels with different diameters, especially, micron-level contact surface compensation can be carried out on non-standard barrels, and an adjustment blind area existing in a traditional structure is effectively eliminated.

Description

Technical Field

[0001] This application relates to the field of rotary kiln equipment technology, specifically a rotary kiln support structure. Background Technology

[0002] A rotary kiln is a large-scale thermal equipment widely used in various industries such as building materials, metallurgy, chemicals, and environmental protection. Its core working principle is that the slow rotation of the cylinder causes the material to tumble and move continuously inside the kiln, while simultaneously exchanging heat fully with the high-temperature airflow, thereby achieving physical and chemical changes such as calcination, drying, decomposition, and reduction of the material.

[0003] An existing patent (publication number: CN219264919U) discloses a rotary kiln support structure. It includes a sleeve and a support frame. The support frame is fixedly connected to the outer surface of the sleeve, and a support rod is slidably connected inside the sleeve. One end of the support rod has a groove, and a ball bearing is rotatably connected inside the groove.

[0004] The above solution uses bolts, nuts, and sleeves to firmly fix one end of the support rod in different positions inside the sleeve, thus supporting rotary kiln shells of various diameters. However, the insertion holes are evenly distributed, and the position adjustment of the support rod can only be done at fixed intervals, which cannot achieve continuous and stepless adjustment. When facing rotary kiln shells with some non-standard diameters, it cannot provide sufficiently fine adjustment accuracy, resulting in certain limitations in its use. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a rotary kiln support structure that features continuous linear displacement, breaks through the limitations of traditional fixed spacing in plug-in type systems, achieves stepless fine adjustment of the support position, and allows for minute displacement adjustments to enable precise adjustment of the support position, thus solving the problems mentioned in the background technology.

[0006] To achieve the above objectives, this application provides the following technical solution: a rotary kiln support structure, including a base, with two symmetrical movable frames slidably connected to the inner side of the base, and multiple support frames fixedly connected above each of the two movable frames. A rotary kiln body is provided above the base, and a driving assembly is provided on the inner side of each support frame. The driving assembly includes a fixed seat fixedly connected to the inner side of the support frame, a first lead screw rotatably connected to the inner side of the fixed seat, and the outer surface of the first lead screw rotatably connected to the inner wall of the support frame. A first servo motor is fixedly embedded on the outer surface of the fixed seat, and the output end of the first servo motor is fixedly connected to one end of the first lead screw. Two support seats are provided on the inner side of each support frame, and the outer surface of the first lead screw is threadedly connected to the inner wall of the support seat. A fine-tuning assembly is provided on the outside of each support seat, and a mounting seat is provided on the outside of each support seat. A ball bearing is installed on one side of each mounting seat.

[0007] Through the above scheme, by setting the rotational connection between the fixed seat and the first lead screw and the drive of the first servo motor, the support seat forms a continuous linear displacement in the threaded transmission on the outer surface of the first lead screw, breaking through the limitation of the traditional plug-in type fixed spacing, realizing stepless fine adjustment of the support position. At the same time, with the fine adjustment component, the support seat can be adjusted by a small displacement, realizing fine adjustment of the support position. Thus, the mounting seat and ball bearings can dynamically adapt to the curvature changes of cylinders with different diameters. In particular, for non-standard cylinders, micron-level contact surface compensation can be performed, effectively eliminating the adjustment blind spots existing in traditional structures.

[0008] Furthermore, a guide rod is fixedly connected to the inner wall of the fixed base, and the outer surface of the guide rod is fixedly connected to the inner side of the support frame, while the outer surface of the guide rod is slidably connected to the inner side of the support base.

[0009] Through the above scheme, the cooperation between the guide rod and the support seat establishes a dual constraint mechanism during the adjustment process. This ensures the linear motion accuracy of the support seat and effectively disperses lateral loads through the contact of the guide surface, significantly reducing the eccentric wear of the threads and extending the service life of key components.

[0010] Furthermore, each of the support bases has a telescopic rod fixedly connected to its outer surface, and the telescopic end of the telescopic rod is fixedly connected to one side of the mounting base.

[0011] The above scheme, by setting the telescopic rod, can limit and guide the movement of the mounting base, ensuring that the mounting base drives the ball bearings to always maintain a predetermined contact state with the surface of the rotary kiln body.

[0012] Furthermore, a spring is fixedly connected to one side of each support base, and the other end of the spring is fixedly connected to one side of the mounting base.

[0013] The above solution, by setting a spring to create an elastic connection interface between the support base and the mounting base, can effectively buffer sudden impact loads.

[0014] Furthermore, a bidirectional lead screw is rotatably connected to the inner side of the base, and the inner threads of the two movable frames are connected to the outer side of the bidirectional lead screw. A second servo motor is fixedly embedded on one side of the base, and the output end of the second servo motor is fixedly connected to one end of the bidirectional lead screw.

[0015] The above scheme, through the cooperation between the bidirectional lead screw and the second servo motor, can drive the moving frame to move synchronously and symmetrically, stably drive the mounting base and ball bearings to support the rotary kiln body, and facilitate subsequent maintenance and replacement of internal components.

[0016] Furthermore, two symmetrical guide rails are fixedly connected to the outer surface of the base, and the outer sides of the two movable frames are slidably connected to the inner wall of the guide rails.

[0017] Through the above scheme, the guide rail can guide the moving frame, and under its constraint, the precise displacement of the moving frame is further enhanced, significantly improving the adjustment efficiency and positioning accuracy.

[0018] Furthermore, the fine-tuning component includes a first fixing frame fixedly connected to the outside of the support base, an internally threaded cylinder rotatably connected to the inside of the first fixing frame, a second lead screw threadedly connected to the inside of the internally threaded cylinder, one end of the second lead screw fixedly connected to one side of the mounting base, a fixing shaft fixedly connected to one end of the internally threaded cylinder, a worm gear fixedly connected to the outside of the fixing shaft, and a worm engaging with the outside of the worm gear.

[0019] The above scheme converts rotational motion into precise linear displacement by setting a second lead screw and a threaded engagement with the internal threaded cylinder. At the same time, it works with a worm gear and worm to form a self-locking fine-tuning device, enabling sub-millimeter-level positional fine-tuning of the mounting base. This transmission method also has high-efficiency motion accuracy and load-bearing capacity, improving the practicality of the device.

[0020] Furthermore, the fine-tuning component also includes a second fixing frame. The two ends of the worm gear are respectively rotatably connected to the outer surface of the support base and the inner side of the second fixing frame. A rotating handle is rotatably connected to the inner side of the second fixing frame. One end of the rotating handle is fixedly connected to one end of the worm gear. Anti-slip texture is provided on the outer side of the rotating handle.

[0021] The above solution increases friction by adding anti-slip texture to the surface of the handle, making it easier for manual rotation for fine adjustments. It also allows for precise manual adjustments even during power system failures, ensuring the equipment's continuous operation under abnormal conditions and significantly improving the system's reliability level.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This rotary kiln support structure, through the rotational connection between the fixed seat and the first lead screw and the drive of the first servo motor, enables the support seat to form a continuous linear displacement in the threaded transmission on the outer surface of the first lead screw. This breaks through the limitations of the traditional plug-in type fixed spacing and achieves stepless fine adjustment of the support position. At the same time, the fine adjustment of the fine adjustment component allows the support seat to be adjusted by tiny displacements, achieving fine adjustment of the support position. As a result, the mounting seat and ball bearings can dynamically adapt to the curvature changes of cylinders with different diameters. In particular, for non-standard cylinders, micron-level contact surface compensation can be performed, effectively eliminating the adjustment blind spots existing in traditional structures. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0025] Figure 2 This is a three-dimensional structural diagram of the support frame of this application;

[0026] Figure 3 This is a three-dimensional structural diagram of the support base of this application;

[0027] Figure 4 This is a three-dimensional structural diagram of the fine-tuning component of this application;

[0028] Figure 5 This is a three-dimensional structural diagram of the base, bidirectional lead screw, second servo motor, and guide rail of this application.

[0029] In the picture:

[0030] 1. Base; 2. Moving frame; 3. Support frame; 4. Rotary kiln body; 5. Drive assembly; 501. Fixed seat; 502. First lead screw; 503. First servo motor; 504. Guide rod; 6. Support seat; 7. Fine-tuning assembly; 701. First fixed frame; 702. Internal threaded cylinder; 703. Fixed shaft; 704. Worm gear; 705. Worm; 706. Second lead screw; 707. Second fixed frame; 708. Rotary handle; 8. Telescopic rod; 9. Mounting seat; 10. Ball bearing; 11. Spring; 12. Bidirectional lead screw; 13. Second servo motor; 14. Guide rail. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 2 and Figure 3 This embodiment of a rotary kiln support structure includes a base 1. Two symmetrical movable frames 2 are slidably connected to the inner side of the base 1. Multiple support frames 3 are fixedly connected above each of the two movable frames 2. A rotary kiln body 4 is located above the base 1. A drive assembly 5 is provided inside each support frame 3. The drive assembly 5 includes a fixed seat 501 fixedly connected to the inner side of the support frame 3. A first lead screw 502 is rotatably connected to the inner side of the fixed seat 501, and the outer surface of the first lead screw 502 is rotatably connected to the inner wall of the support frame 3. A first servo motor 503 is fixedly embedded in the outer surface of the fixed seat 501, and the output end of the first servo motor 503 is fixedly connected to one end of the first lead screw 502. A guide rod 504 is fixedly connected to the inner wall of the fixed seat 501, and the outer surface of the guide rod 504 is fixedly connected to the inner side of the support frame 3. The outer surface of the guide rod 504 is slidably connected to the inner side of the support seat 6. The above-mentioned arrangement of the guide rod 504 and the support seat 6 creates a dual constraint mechanism during the adjustment process, which not only ensures the linear motion accuracy of the support seat 6, but also effectively disperses the lateral load through the contact of the guide surface, significantly reduces the eccentric wear of the thread, and extends the service life of key components. Each support frame 3 has two support seats 6 on its inner side. The outer surface of the first lead screw 502 is threadedly connected to the inner wall of the support seat 6. Each support seat 6 has a fine-tuning component 7 on its outer side.

[0033] Please see Figure 2 and Figure 3 Each support seat 6 is equipped with an external mounting seat 9, and each mounting seat 9 has a ball bearing 10 mounted on one side. By setting the fixed seat 501 and the first lead screw 502 for rotational connection and the first servo motor 503 for drive, the support seat 6 forms a continuous linear displacement in the threaded transmission on the outer surface of the first lead screw 502, breaking through the limitation of the traditional plug-in fixed spacing and realizing stepless fine adjustment of the support position. At the same time, with the fine adjustment component 7, the support seat 6 can be adjusted by a small displacement, realizing fine adjustment of the support position. Thus, the mounting seat 9 and the ball bearing 10 can dynamically adapt to the curvature changes of cylinders with different diameters. Especially for non-standard cylinders, micron-level contact surface compensation can be performed, effectively eliminating the adjustment blind spot of the traditional structure. Each support seat 6 has a telescopic rod 8 fixedly connected to its outer surface, and the telescopic end of the telescopic rod 8 is fixedly connected to one side of the mounting seat 9. By setting the telescopic rod 8, the movement of the mounting seat 9 can be limited and guided, ensuring that the mounting seat 9 drives the ball bearing 10 to always maintain a predetermined contact state with the surface of the rotary kiln body 4.

[0034] Please see Figure 3 and Figure 5Each support 6 has a spring 11 fixedly connected to one side, and the other end of the spring 11 is fixedly connected to one side of the mounting base 9. By setting the spring 11, an elastic connection interface is formed between the support 6 and the mounting base 9, which can effectively buffer sudden impact loads. The inner side of the base 1 is rotatably connected to a bidirectional lead screw 12, and the inner side of the two moving frames 2 is threadedly connected to the outer side of the bidirectional lead screw 12. A second servo motor 13 is fixedly embedded on one side of the base 1, and the output end of the second servo motor 13 is fixedly connected to one end of the bidirectional lead screw 12. Through the cooperation between the bidirectional lead screw 12 and the second servo motor 13, the moving frames 2 can be driven to move synchronously and symmetrically, stably driving the mounting base 9 and the ball bearings 10 to support the rotary kiln body 4. At the same time, it is convenient for subsequent maintenance and replacement of internal components. The outer surface of the base 1 is fixedly connected to two symmetrical guide rails 14, and the outer sides of the two moving frames 2 are slidably connected to the inner wall of the guide rails 14. The guide rails 14 can guide the moving frames 2, and under their constraint, further enhance the precise displacement of the moving frames 2, significantly improving the adjustment efficiency and positioning accuracy.

[0035] Please see Figure 2 , Figure 3 and Figure 4 The fine-tuning component 7 includes a first fixing frame 701 fixedly connected to the outside of the support base 6. An internally threaded cylinder 702 is rotatably connected to the inner side of the first fixing frame 701. A second lead screw 706 is threadedly connected to the inner side of the internally threaded cylinder 702. One end of the second lead screw 706 is fixedly connected to one side of the mounting base 9. A fixed shaft 703 is fixedly connected to one end of the internally threaded cylinder 702. A worm gear 704 is fixedly connected to the outer side of the fixed shaft 703. A worm 705 is meshed with the outer side of the worm gear 704. By setting the threaded engagement between the second lead screw 706 and the internally threaded cylinder 702, the rotational motion is converted into precise linear displacement. Simultaneously, the worm gear 704 and the worm 705 form a self-locking fine-tuning device, achieving sub-millimeter adjustment of the mounting base 9. The micro-adjustment mechanism provides high-efficiency motion precision and load-bearing capacity, enhancing the practicality of the device. The micro-adjustment component 7 also includes a second fixed frame 707. The two ends of the worm gear 705 are rotatably connected to the outer surface of the support base 6 and the inner side of the second fixed frame 707, respectively. A handle 708 is rotatably connected to the inner side of the second fixed frame 707. One end of the handle 708 is fixedly connected to one end of the worm gear 705. Anti-slip textures are provided on the outer side of the handle 708. The anti-slip textures on the surface of the handle 708 increase friction, facilitating manual rotation for fine adjustment. Furthermore, it allows for precise manual adjustment even during power system failures, ensuring the continuous operation of the equipment under abnormal conditions and significantly improving the system reliability level.

[0036] In this embodiment, a rotary kiln support structure is provided. By setting a fixed seat 501 and a first lead screw 502 for rotational connection and driving with a first servo motor 503, the support seat 6 forms a continuous linear displacement in the threaded transmission on the outer surface of the first lead screw 502. This breaks through the limitations of traditional plug-in type fixed spacing and realizes stepless fine adjustment of the support position. At the same time, with the fine adjustment component 7, the support seat 6 can be adjusted by a small displacement, realizing fine adjustment of the support position. As a result, the mounting seat 9 and the ball bearing 10 can dynamically adapt to the curvature changes of cylinders with different diameters. In particular, for non-standard cylinders, micron-level contact surface compensation can be performed, effectively eliminating the adjustment blind spots existing in traditional structures.

[0037] The working principle of the above embodiment is as follows: First, when the second servo motor 13 starts, it drives the bidirectional lead screw 12 to rotate, causing the symmetrically arranged movable frame 2 to move towards or away from each other along the guide rail 14. By changing the relative position of the movable frame 2, the support span is coarsely adjusted. Then, the first servo motor 503 in the drive assembly 5 drives the first lead screw 502 to rotate, causing the support seat 6 to generate axial displacement along the guide rod 504, completing the initial positioning of the support position. Then, rotating the handle 708 drives the worm gear 705 to rotate, and under its meshing transmission, it drives the worm wheel 704 to rotate, causing the internal threaded cylinder 702 to drive the second lead screw 706. The micron-level displacement is generated, which pushes the mounting base 9 to achieve precise positioning of the contact surface. At the same time, the telescopic rod 8 can guide the movement of the mounting base 9 to ensure that the mounting base 9 moves accurately. Then, under the action of the spring 11, an elastic connection interface is formed between the support base 6 and the mounting base 9, which can effectively buffer sudden impact loads. Finally, when the cylinder deforms, the displacement is transmitted to the mounting base 9 through the threaded engagement of the internal threaded cylinder 702 and the second lead screw 706, so that the ball 10 always maintains the best contact state. The whole process forms a closed-loop position control system through the coarse adjustment of the bidirectional lead screw 12 and the fine adjustment of the fine adjustment component 7.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary kiln support structure, comprising a base (1), characterized in that: The base (1) has two symmetrical movable frames (2) slidably connected to its inner side. Multiple support frames (3) are fixedly connected above each of the two movable frames (2). A rotary kiln body (4) is provided above the base (1). A drive assembly (5) is provided on the inner side of each support frame (3). The drive assembly (5) includes a fixed seat (501) fixedly connected to the inner side of the support frame (3). A first lead screw (502) is rotatably connected to the inner side of the fixed seat (501), and the outer surface of the first lead screw (502) is rotatably connected to the inner wall of the support frame (3). The outer surface of the fixed base (501) is fixedly inlaid with a first servo motor (503). The output end of the first servo motor (503) is fixedly connected to one end of the first lead screw (502). Each support frame (3) has two support seats (6) on its inner side. The outer surface of the first lead screw (502) is threaded to the inner wall of the support seat (6). Each support seat (6) is provided with a fine adjustment component (7) on its outer side. Each support seat (6) is provided with a mounting seat (9) on its outer side. Each mounting seat (9) is provided with a ball bearing (10) on one side.

2. The rotary kiln support structure according to claim 1, characterized in that: The inner wall of the fixed base (501) is fixedly connected to a guide rod (504), and the outer surface of the guide rod (504) is fixedly connected to the inner side of the support frame (3). The outer surface of the guide rod (504) is slidably connected to the inner side of the support base (6).

3. The rotary kiln support structure according to claim 1, characterized in that: Each of the support bases (6) has a telescopic rod (8) fixedly connected to its outer surface, and the telescopic end of the telescopic rod (8) is fixedly connected to one side of the mounting base (9).

4. The rotary kiln support structure according to claim 1, characterized in that: Each of the support bases (6) is fixedly connected to one side of a spring (11), and the other end of the spring (11) is fixedly connected to one side of the mounting base (9).

5. A rotary kiln support structure according to claim 1, characterized in that: The inner side of the base (1) is rotatably connected to a bidirectional lead screw (12), and the inner sides of the two moving frames (2) are threadedly connected to the outer side of the bidirectional lead screw (12). A second servo motor (13) is fixedly embedded on one side of the base (1), and the output end of the second servo motor (13) is fixedly connected to one end of the bidirectional lead screw (12).

6. The rotary kiln support structure according to claim 1, characterized in that: The outer surface of the base (1) is fixedly connected to two symmetrical guide rails (14), and the outer sides of the two movable frames (2) are slidably connected to the inner wall of the guide rails (14).

7. The rotary kiln support structure according to claim 1, characterized in that: The fine-tuning component (7) includes a first fixing frame (701) fixedly connected to the outside of the support base (6). An internal threaded cylinder (702) is rotatably connected to the inside of the first fixing frame (701). A second lead screw (706) is threadedly connected to the inside of the internal threaded cylinder (702). One end of the second lead screw (706) is fixedly connected to one side of the mounting base (9). A fixed shaft (703) is fixedly connected to one end of the internal threaded cylinder (702). A worm gear (704) is fixedly connected to the outside of the fixed shaft (703). A worm (705) is meshed with the outside of the worm gear (704).

8. A rotary kiln support structure according to claim 7, characterized in that: The fine-tuning component (7) also includes a second fixing frame (707). The two ends of the worm (705) are respectively rotatably connected to the outer surface of the support base (6) and the inner side of the second fixing frame (707). A rotating handle (708) is rotatably connected to the inner side of the second fixing frame (707). One end of the rotating handle (708) is fixedly connected to one end of the worm (705). Anti-slip texture is provided on the outer side of the rotating handle (708).

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