Weight reduction type rotary kiln large gear ring

Abstract

The utility model discloses a weight reduction type rotary kiln large gear ring, and belongs to the technical field of cement production equipment. Comprising a plurality of gear ring sections, the gear ring sections form a large gear ring body, cavity structures are formed in the gear ring sections, a plurality of reinforcing ribs are fixedly arranged on the inner walls of the cavity structures, and connecting devices are arranged among the gear ring sections and used for positioning and connecting the gear ring sections. The cavity structure is adopted in the gear ring section, then the reinforcing ribs are arranged, the structural strength of the gear ring section is enhanced, the same using performance is met, and compared with a traditional solid large gear ring which is integrally cast or forged, the use amount of materials is greatly reduced, the weight of the whole gear ring is reduced, and the manufacturing cost is reduced; the large gear ring body is designed to be composed of the multiple gear ring sections, the manufacturing difficulty is effectively reduced, the size and weight of each gear ring section are relatively small, and machining and transportation in the manufacturing process are facilitated.

Description

Technical Field

[0001] This utility model relates to a heavy-duty rotary kiln gear ring, belonging to the technical field of cement production equipment. Background Technology

[0002] The cement rotary kiln is a core piece of equipment in cement production, and the large gear ring, as a key component of the rotary kiln's drive system, directly affects the kiln's operating efficiency and stability. Traditional large gear rings typically employ integral casting or forging structures, resulting in large weight, high material consumption, high manufacturing costs, and difficulties in installation and maintenance. While some attempts have been made to reduce the weight of gear rings in existing technologies, most are limited to material replacement or simple structural optimization, failing to fundamentally resolve the contradiction between weight and strength. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a weight-reducing rotary kiln gear ring. This solves the problem that although there have been some attempts to reduce the weight of gear rings in the prior art, most of them are limited to material replacement or simple structural optimization, and have failed to fundamentally solve the contradiction between weight and strength.

[0004] The technical problem to be solved by this utility model is achieved by the following technical solution: a heavy-duty rotary kiln large gear ring, comprising several gear ring segments, the several gear ring segments forming a large gear ring body, the several gear ring segments having a cavity structure, the inner wall of the cavity structure being fixedly provided with several reinforcing ribs, and a connecting device being provided between the several gear ring segments, the connecting device being used to position and connect the gear ring segments.

[0005] By adopting the above technical solution, the gear ring segment adopts a cavity structure and then sets reinforcing ribs to enhance the structural strength of the gear ring segment and meet the same performance requirements. Compared with the traditional solid gear ring that is cast or forged as a whole, the amount of material used is greatly reduced, the overall gear ring weight is reduced, and the manufacturing cost is lowered. By designing the large gear ring body to be composed of several gear ring segments, the manufacturing difficulty is effectively reduced, and the volume and weight of each gear ring segment are relatively small, which facilitates processing and transportation during the manufacturing process.

[0006] The present invention is further configured such that: the connecting device includes a positioning plate, a positioning groove and a connecting structure, the positioning plate is fixedly disposed at one end of the gear ring segment, the positioning groove is opened at the end of the gear ring segment away from the positioning plate, the positioning plate and the positioning groove are plugged in, and the connecting structure is disposed on the gear ring segment and is used to connect the gear ring segments.

[0007] The present invention is further configured such that: the connecting structure includes a connecting plate, a bolt, a nut, and a limiting part; the connecting plate is fixedly disposed on the side of the gear ring segment away from the gear; the bolt is threadedly connected to the connecting plate; one end of the bolt can penetrate the connecting plate and be threadedly connected to the nut; the limiting part is disposed on the bolt and is used to limit the bolt.

[0008] The present invention is further configured such that: the limiting part includes a guide groove, a guide block, a limiting groove and a limiting block, the guide groove is opened on the bolt along the axial direction of the bolt, the guide block and the guide groove are slidably connected, the limiting block and the guide block are fixedly connected, the limiting groove is opened on the connecting plate, and the limiting block and the limiting groove are inserted into each other.

[0009] By adopting the above technical solution, during installation, the positioning plate of one gear ring segment is first aligned with the positioning groove of another gear ring segment, so that the gear ring segments can quickly find the correct position when connected. Then, the positioning plate is inserted into the positioning groove to achieve initial positioning. At this time, the two connecting plates are in abutting state. Then, the bolt is used to pass through the corresponding hole on the connecting plate through the action of the thread structure. Then, the guide block slides along the guide groove, so that the guide block drives the limiting block to move in the direction of the limiting groove, realizing the insertion of the limiting block and the limiting groove, thereby restricting the rotation of the bolt. Then, the nut and the bolt are connected by the action of the thread structure to further limit the bolt and improve the stability of the device.

[0010] The present invention is further configured such that: an inner ring is fixedly provided on the side of the connecting plate away from the gear ring segment, and the inner ring is aligned with several gear ring segments respectively.

[0011] By adopting the above technical solution, the inner ring is connected to the rotary kiln.

[0012] The present invention is further provided with a wear-resistant layer on the surface of the gear ring segment.

[0013] By adopting the above technical solution, the wear-resistant layer can reduce the friction coefficient between tooth surfaces and improve the service life of the device.

[0014] The beneficial effects of this utility model are: the gear ring segment adopts a hollow structure and then reinforces it with ribs to enhance the structural strength of the gear ring segment and meet the same performance requirements. Compared with the traditional solid gear ring that is cast or forged as a whole, the amount of material used is greatly reduced, the overall weight of the gear ring is reduced, and the manufacturing cost is lowered. By designing the large gear ring body to be composed of several gear ring segments, the manufacturing difficulty is effectively reduced, and the volume and weight of each gear ring segment are relatively small, which facilitates processing and transportation during the manufacturing process. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2This is a cross-sectional view of the gear ring section of this utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the gear ring segment of this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged diagram of point A in the middle.

[0019] In the diagram: 1. Gear ring segment; 2. Cavity structure; 3. Reinforcing rib; 1011. Positioning plate; 1012. Positioning groove; 1021. Connecting plate; 1022. Bolt; 1023. Nut; 1031. Guide groove; 1032. Guide block; 1033. Limiting groove; 1034. Limiting block; 1041. Inner ring. Detailed Implementation

[0020] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this utility model, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0021] like Figure 1 and Figure 2 As shown, a weight-reducing rotary kiln gear ring includes several gear ring segments 1, which together form the gear ring body. The specific number of segments in the segmented design is determined based on the diameter of the gear ring body and the manufacturing process, preferably 4 to 8 segments. Each gear ring segment 1 has a cavity structure 2, and several reinforcing ribs 3 are fixedly arranged on the inner wall of the cavity structure 2. The gear ring segments 1 are made of high-strength alloy steel to improve wear resistance. The reinforcing ribs 3 inside the cavity structure 2 are made of lightweight, high-strength materials, such as titanium alloy or aluminum alloy. The reinforcing ribs 3 can be designed as a honeycomb or mesh support structure to reduce weight and improve overall rigidity. Connecting devices are provided between the gear ring segments 1.

[0022] like Figure 3 and Figure 4 As shown, the connecting device includes a positioning plate 1011, a positioning groove 1012, and a connecting structure. The positioning plate 1011 is fixedly disposed at one end of the gear ring segment 1. The positioning groove 1012 is vertically opened on the gear ring segment 1 at the end away from the positioning plate 1011. The positioning plate 1011 and the positioning groove 1012 are inserted together. The positioning plate 1011 can move along the opening direction of the positioning groove 1012. The connecting structure is disposed on the gear ring segment 1. The connecting structure includes a connecting plate 1021, a bolt 1022, a nut 1023, and a limiting part. The connecting plate 1021 is fixedly disposed on the side of the gear ring segment 1 away from the gear. There are two connecting plates 1021, which correspond to the positioning plate 1011 and the positioning groove 1012 respectively. The bolt 1022 is threadedly connected to the connecting plate 1021. One end of the bolt 1022 can pass through the connecting plate 1021 and be threadedly connected to the nut 1023. The limiting part is disposed on the bolt 1022.

[0023] like Figure 4 As shown, the limiting part includes a guide groove 1031, a guide block 1032, a limiting groove 1033, and a limiting block 1034. The guide groove 1031 is opened on the bolt 1022 along the axial direction of the bolt 1022. The guide block 1032 can slide along the opening direction of the guide groove 1031. The limiting block 1034 is fixedly connected to the guide block 1032. The limiting groove 1033 is opened on the connecting plate 1021 on the side facing the nut 1023. The limiting block 1034 and the limiting groove 1033 are inserted into each other. The nut 1023 can abut against the guide block 1032.

[0024] like Figure 1 As shown, an inner ring 1041 is fixedly installed on the side of the connecting plate 1021 away from the gear ring segment 1. The inner ring 1041 is aligned with several gear ring segments 1. When the inner ring 1041 is connected to the rotary kiln, it can be installed through the mounting block fixedly installed on the inner ring 1041. The rotary kiln has mounting holes. When the mounting block is aligned with the mounting hole, the external pin passes through the mounting block and connects with the mounting hole to realize the installation of the device.

[0025] The surface of gear ring section 1 is provided with a wear-resistant layer, which includes a metal wear-resistant coating, a ceramic wear-resistant coating, and a DLC wear-resistant layer. When the large gear body is engaged, the DLC wear-resistant layer can improve the overall wear resistance of the large gear ring body.

[0026] The gear ring segment 1 adopts a hollow structure 2, and then a reinforcing rib 3 is set to enhance the structural strength of the gear ring segment 1 and meet the same performance requirements. Compared with the traditional solid gear rings that are cast or forged as a whole, the amount of material used is greatly reduced, the overall gear ring weight is reduced, and the manufacturing cost is lowered. By designing the large gear ring body to be composed of several gear ring segments 1, the manufacturing difficulty is effectively reduced, and the volume and weight of each gear ring segment 1 are relatively small, which facilitates processing and transportation during the manufacturing process.

[0027] During installation, first align the positioning plate 1011 of one gear segment 1 with the positioning groove 1012 of the other gear segment 1, so that the gear segment 1 can quickly find the correct position during connection. Then, insert the positioning plate 1011 into the positioning groove 1012 to achieve initial positioning. At this time, the two connecting plates 1021 are in abutting state. Then, use the bolt 1022 to pass through the corresponding hole on the connecting plate 1021 through the action of the thread structure. Then, slide the guide block 1032 along the guide groove 1031, so that the guide block 1032 drives the limiting block 1034 to move towards the limiting groove 1033, realizing the insertion of the limiting block 1034 and the limiting groove 1033, thereby restricting the rotation of the bolt 1022. Then, the nut 1023 and the bolt 1022 are connected by the action of the thread structure to further limit the bolt 1022 and improve the stability of the device.

[0028] The wear-resistant layer can reduce the coefficient of friction between tooth surfaces and improve the service life of the device.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heavy-duty rotary kiln gear ring, characterized in that: It includes several gear ring segments (1), which together form a large gear ring body. Each gear ring segment (1) has a cavity structure (2) with several reinforcing ribs (3) fixedly arranged on its inner wall. A connecting device is provided between the gear ring segments (1) to position and connect the gear ring segments (1).

2. The heavy-duty rotary kiln gear ring according to claim 1, characterized in that: The connecting device includes a positioning plate (1011), a positioning groove (1012), and a connecting structure. The positioning plate (1011) is fixedly disposed at one end of the gear ring segment (1), and the positioning groove (1012) is opened at the end of the gear ring segment (1) away from the positioning plate (1011). The positioning plate (1011) and the positioning groove (1012) are plugged in. The connecting structure is disposed on the gear ring segment (1) and is used to connect the gear ring segment (1).

3. The heavy-duty rotary kiln gear ring according to claim 2, characterized in that: The connection structure includes a connecting plate (1021), a bolt (1022), a nut (1023), and a limiting part. The connecting plate (1021) is fixedly disposed on the side away from the gear on the gear ring segment (1). The bolt (1022) is threadedly connected to the connecting plate (1021). One end of the bolt (1022) can penetrate the connecting plate (1021) and be threadedly connected to the nut (1023). The limiting part is disposed on the bolt (1022) and is used to limit the bolt (1022).

4. The heavy-duty rotary kiln gear ring according to claim 3, characterized in that: The limiting part includes a guide groove (1031), a guide block (1032), a limiting groove (1033), and a limiting block (1034). The guide groove (1031) is opened on the bolt (1022) along the axial direction of the bolt (1022). The guide block (1032) and the guide groove (1031) are slidably connected. The limiting block (1034) is fixedly connected to the guide block (1032). The limiting groove (1033) is opened on the connecting plate (1021). The limiting block (1034) and the limiting groove (1033) are inserted into each other.

5. The heavy-duty rotary kiln gear ring according to claim 3, characterized in that: An inner ring (1041) is fixedly provided on the side of the connecting plate (1021) away from the gear ring segment (1), and the inner ring (1041) is aligned with a plurality of the gear ring segments (1).

6. The heavy-duty rotary kiln gear ring according to claim 1, characterized in that: The surface of the gear ring segment (1) is provided with a wear-resistant layer.

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