Mixing device for production of asbestos-free and less-metal friction plates

Abstract

The utility model discloses a mixing device for producing asbestos-free less metal friction plates, which relates to the technical field of mixing devices, and comprises a mixing barrel, a stirring mechanism for mixing asbestos-free less metal friction plate raw materials is arranged in the mixing barrel, a rotating shaft is arranged on the stirring mechanism, the rotating shaft is connected with an output shaft of a motor, and the motor is connected with the mixing barrel. The stirring mechanism comprises a stirring frame, the stirring frame is I-shaped, the raw materials are transversely stirred through the transversely-arranged stirring rod on the stirring frame, the raw materials are longitudinally stirred in cooperation with the triangular stirring blades with the bottoms driven by bevel gear transmission, and all-directional stirring of the raw materials in the horizontal direction and the vertical direction is achieved. The criss-cross stirring mode enables various raw materials of the asbestos-free and less-metal friction plates to be fully contacted and mixed, and compared with a traditional single-direction stirring material mixing device, the mixing uniformity is greatly improved, so that the stability of the quality of friction plate products is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of mixing device technology, and in particular to a mixing device for the production of asbestos-free and low-metal friction plates. Background Technology

[0002] In the production of asbestos-free, low-metal friction pads, the mixing process is crucial. Traditional mixing devices are relatively simple in structure, mostly relying on a single agitator (similar to a common mixing tank with only a simple straight-blade agitator). This single mixing method results in a limited flow pattern of raw materials within the mixing tank, achieving only localized mixing and making it difficult to evenly disperse various materials. For example, fibrous raw materials and metal powder raw materials often fail to fully blend, leading to differences in the performance of the produced friction pads, with unstable friction coefficients and inconsistent wear resistance. Moreover, during the mixing process in traditional mixing devices, raw materials tend to adhere to the inner wall of the mixing tank. As mixing time increases, the adhered material gradually accumulates, not only wasting raw materials but also affecting the quality of subsequent batches. Cleaning is also extremely tedious, consuming significant manpower and time costs, severely restricting the production efficiency and product quality improvement of asbestos-free, low-metal friction pads. Utility Model Content

[0003] Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a mixing device for the production of asbestos-free, low-metal friction pads. This solves the problem that traditional mixing devices are relatively simple in structure, mostly relying on a single stirring paddle (similar to a common mixing tank with only a simple straight-blade agitator). This single stirring method results in a limited flow pattern of raw materials within the mixing tank, achieving only localized mixing and making it difficult to evenly disperse various raw materials. For example, fibrous raw materials and metal powder raw materials often cannot be fully mixed, leading to differences in the performance of the produced friction pads, resulting in unstable friction coefficients and inconsistent wear resistance.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A mixing device for producing asbestos-free and low-metal friction pads includes a mixing tank. Inside the mixing tank is a stirring mechanism for mixing the asbestos-free and low-metal friction pad raw materials. The stirring mechanism has a rotating shaft connected to the output shaft of a motor. The stirring mechanism includes a stirring frame, which is I-shaped. Horizontal stirring rods are fixedly installed on both sides of the stirring frame for horizontal stirring of the raw materials. A fixing rod is fixedly installed on the bottom of the inner wall of the mixing tank.

[0008] Preferably, a first bevel gear is fixedly installed on the fixed rod, and two second bevel gears mesh with the circumferential surface of the first bevel gear, with rotating rods fixedly installed at the disjoint ends of the two second bevel gears.

[0009] Preferably, the circumferential surfaces of the two rotating rods are provided with triangular stirring blades, which are used to longitudinally stir the raw materials. Scraper plates are fixedly installed on both sides of the stirring frame, and both scraper plates are in contact with the inner wall of the mixing tank.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] In this new invention, the raw materials are horizontally stirred by a horizontally placed stirring rod on the stirring rack, and vertically stirred by a triangular stirring blade driven by a bevel gear at the bottom, achieving omnidirectional stirring of the raw materials in both horizontal and vertical directions. This crisscrossing stirring method allows various raw materials of asbestos-free and low-metal friction pads to fully contact and mix, greatly improving the uniformity of mixing compared to traditional mixing devices that stir in one direction, thereby ensuring the stability of the friction pad product quality.

[0012] In this new design, the scraper blades installed on both sides of the mixing rack are always in contact with the inner wall of the mixing tank. During the mixing process, the scraper blades rotate with the mixing rack, promptly scraping off the raw materials adhering to the inner wall of the mixing tank, preventing material accumulation. This not only ensures that all raw materials participate in thorough mixing, improving the mixing effect, but also greatly reduces the difficulty of cleaning the mixing tank after the mixing process is completed, reducing cleaning time and costs, and improving the ease of equipment maintenance. Attached Figure Description

[0013] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0014] Figure 1 This is a structural diagram of the entire utility model;

[0015] Figure 2 This is a structural diagram of the mixing rack of this utility model;

[0016] Figure 3 This is a structural diagram of the horizontal stirring rod of this utility model;

[0017] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A.

[0018] Legend: 12. First bevel gear; 13. Fixed rod; 14. Second bevel gear; 15. Rotating rod; 16. Triangular stirring blade; 21. Stirring frame; 22. Horizontal stirring rod; 23. Scraper; 24. Rotating shaft; 25. Mixing bucket. Detailed Implementation

[0019] This application provides a mixing device for the production of asbestos-free, low-metal friction pads, effectively solving the problem that traditional mixing devices are relatively simple in structure and mostly rely on a single stirring paddle (similar to a common ordinary mixing tank with only one simple straight-blade agitator). This single stirring method results in a relatively uniform flow pattern of raw materials within the mixing tank, achieving only localized mixing and making it difficult to evenly disperse various raw materials. For example, fibrous raw materials and metal powder raw materials often cannot be fully mixed, leading to differences in the performance of the produced friction pads, such as unstable friction coefficients and inconsistent wear resistance.

[0020] Example

[0021] like Figures 1-4 As shown, the technical solution in this application aims to effectively address the problem that traditional mixing devices have relatively simple structures, mostly relying on a single stirring paddle for mixing (similar to a common ordinary mixing tank, which only has one simple straight-blade agitator inside). This single mixing method results in a relatively uniform flow pattern of raw materials within the mixing tank, achieving only localized mixing and making it difficult to evenly disperse various raw materials. For example, fibrous raw materials and metal powder raw materials often cannot be fully mixed, leading to differences in the performance of the produced friction plates, resulting in unstable friction coefficients and inconsistent wear resistance. The overall approach is as follows:

[0022] To address the problems existing in the prior art, this utility model provides a mixing device for the production of asbestos-free and low-metal friction pads, including a mixing tank 25. The mixing tank 25 serves as a container for mixing raw materials, providing a closed space for the entire mixing process, preventing raw materials from spilling during mixing, and ensuring the stability of the mixing environment. The mixing tank 25 is equipped with a stirring mechanism for mixing the asbestos-free and low-metal friction pad raw materials. The stirring mechanism is the core component for achieving uniform mixing of raw materials. The stirring mechanism is equipped with a rotating shaft 24, which is connected to the output shaft of a motor. The motor serves as a power source, driving the rotating shaft 24 to rotate through the output shaft, thereby providing power to the stirring mechanism and enabling the mixing operation to continue.

[0023] The mixing mechanism includes a mixing frame 21, which is I-shaped. This unique shape design increases the contact area with the raw materials, making the mixing range wider. Horizontal mixing rods 22 are fixedly installed on both sides of the mixing frame 21. The horizontal mixing rods 22 are used to mix the raw materials horizontally. During the mixing process, the horizontal mixing rods 22 move in a circular motion within the mixing tank 25 as the mixing frame 21 rotates, stirring and mixing the raw materials located at different horizontal positions. This effectively promotes the uniform distribution of the raw materials in the horizontal direction and improves the uniformity of the mixture.

[0024] A fixing rod 13 is fixedly installed on the bottom of the inner wall of the mixing tank 25. The fixing rod 13 serves to support and position the first bevel gear 12, ensuring the stability of the first bevel gear 12 during operation and enabling it to mesh and transmit power normally with the second bevel gear 14. The first bevel gear 12 is fixedly installed on the fixing rod 13, and two second bevel gears 14 mesh with the circumferential surface of the first bevel gear 12. This meshing structure of bevel gears can change the direction of power transmission. When the mixing frame 21 rotates, it drives the related components to move, causing the second bevel gear 14 to rotate around the first bevel gear 12, realizing the conversion of power from the horizontal direction to the approximately vertical direction.

[0025] Rotating rods 15 are fixedly installed at the disjoint ends of the two second bevel gears 14. Triangular stirring blades 16 are provided on the circumferential surface of the two rotating rods 15. The triangular stirring blades 16 are used to stir the raw materials longitudinally. Driven by the second bevel gears 14, the rotating rods 15 and triangular stirring blades 16 start to rotate. The special shape of the triangular stirring blades 16 can generate a strong longitudinal stirring force during rotation, which can turn and mix the raw materials at different heights. This makes up for the deficiency of the horizontal stirring rod 22, which only stirs in the horizontal direction. The raw materials are stirred in both longitudinal and transverse dimensions at the same time, which greatly improves the efficiency and uniformity of mixing.

[0026] Scraper plates 23 are fixedly installed on both sides of the mixing rack 21. Both scraper plates 23 are in contact with the inner wall of the mixing bucket 25. The scraper plates 23 rotate with the mixing rack 21 when it rotates, which can scrape off the raw materials adhering to the inner wall of the mixing bucket 25 in time, preventing the raw materials from accumulating on the bucket wall. This not only ensures that the raw materials can fully participate in the mixing and avoids uneven mixing due to some raw materials sticking to the wall, but also makes it easier to clean the mixing bucket 25 after the mixing is completed, reducing the difficulty and time cost of cleaning.

[0027] Working principle:

[0028] Raw material addition and equipment start-up: When using this device to stir asbestos-free and low-metal friction pad raw materials, firstly, the user needs to add various raw materials into the mixing tank 25, and then cover it with the lid (the top cover is existing technology and is not shown in the figure). After the preparation is completed, start the motor. After the motor starts, its output shaft begins to rotate, which in turn drives the rotating shaft 24 connected to the output shaft to rotate synchronously.

[0029] Horizontal mixing process: The rotation of the rotating shaft 24 drives the mixing frame 21 to rotate. Since the horizontal mixing rods 22 are fixedly installed on both sides of the mixing frame 21, the horizontal mixing rods 22 will rotate together with the mixing frame 21 in the mixing tank 25. During the rotation, the horizontal mixing rods 22 apply a horizontal force to the raw materials in the tank, causing the raw materials to mix with each other in the horizontal direction, thus achieving horizontal mixing.

[0030] Longitudinal mixing process: When the mixing frame 21 rotates, the fixed rod 13 fixed to the bottom of the inner wall of the mixing tank 25 remains stationary. The first bevel gear 12 installed on the fixed rod 13 meshes with the two second bevel gears 14. When the mixing frame 21 rotates, it will drive the connected parts to move together, so that the two second bevel gears 14 rotate around the first bevel gear 12. Since the first bevel gear 12 is fixed on the stationary fixed rod 13, according to the meshing principle of bevel gears, the two second bevel gears 14 will rotate in opposite directions. The two second bevel gears 14 are respectively fixedly installed with rotating rods 15 at their disjointed ends. Therefore, the rotation of the second bevel gears 14 will drive the rotating rods 15 to rotate. The triangular stirring blades 16 set on the circumferential surface of the rotating rods 15 also rotate. During the rotation, the triangular stirring blades 16 apply a longitudinal force to the raw materials, so that the raw materials produce a stirring effect in the vertical direction. This, combined with the transverse stirring of the horizontal mixing rod 22, further improves the uniformity and efficiency of the raw material mixing.

[0031] To prevent raw materials from sticking to the wall: The scraper plates 23 fixedly installed on both sides of the mixing rack 21 will rotate together with the mixing rack 21 when it rotates. Since both scraper plates 23 are in close contact with the inner wall of the mixing bucket 25, the scraper plates 23 can scrape off the raw materials sticking to the inner wall of the mixing bucket 25 in time during the rotation process, avoiding the accumulation of raw materials on the bucket wall, ensuring the mixing effect, and also facilitating the subsequent cleaning of the mixing bucket 25.

[0032] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A mixing device for the production of asbestos-free, low-metal friction pads, comprising a mixing tank (25), characterized in that: The mixing tank (25) is equipped with a stirring mechanism for mixing asbestos-free and low-metal friction pad raw materials. The stirring mechanism is equipped with a rotating shaft (24), which is connected to the output shaft of the motor. The stirring mechanism includes a stirring frame (21), which is I-shaped. A horizontal stirring rod (22) is fixedly installed on both sides of the stirring frame (21). The horizontal stirring rod (22) is used to stir the raw materials horizontally. A fixing rod (13) is fixedly installed on the bottom of the inner wall of the mixing tank (25). A first bevel gear (12) is fixedly installed on the fixed rod (13). Two second bevel gears (14) mesh with the circumferential surface of the first bevel gear (12). Rotating rods (15) are fixedly installed at the disjoint ends of the two second bevel gears (14). Triangular stirring blades (16) are provided on the circumferential surface of the two rotating rods (15). The triangular stirring blades (16) are used to stir the raw materials longitudinally.

2. The mixing device for producing asbestos-free, low-metal friction pads according to claim 1, characterized in that: Scraper plates (23) are fixedly installed on both sides of the stirring rack (21).

3. The mixing device for producing asbestos-free, low-metal friction pads according to claim 2, characterized in that: Both scraper blades (23) are in contact with the inner wall of the mixing tank (25).

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