Low-noise transmission mechanism of drawstring centrifugal machine

Abstract

The utility model relates to the technical field of centrifugal machines, in particular to a low-noise transmission mechanism of a drawstring centrifugal machine, which comprises a centrifugal machine, a transmission mechanism is arranged on the centrifugal machine, the transmission mechanism is used for driving the centrifugal machine to operate, and the transmission mechanism comprises a driving motor which is fixedly connected to the bottom of the centrifugal machine. The motor provides power; the input shaft is arranged on the centrifugal machine and used for transmitting power to the centrifugal machine; and a dust cover. The transmission mechanism is arranged, airflow generated by the exhaust fan exhausts heat in the dust cover, the cooling and ventilation effects of equipment are ensured, when the exhaust fan rotates, the airflow generated by the exhaust fan filters dust particles in air through the annular filter screen cover, external dust is prevented from entering a transmission system, and the service life of the transmission system is prolonged. The annular filter screen cover plays a role in protecting the transmission belt, the input shaft and other key components, the service life of equipment is prolonged, and the operation stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, specifically a low-noise transmission mechanism for a belt centrifuge. Background Technology

[0002] A belt centrifuge is a centrifugal device that uses a belt drive system to drive a drum to rotate at high speed. It is widely used in chemical, pharmaceutical, and food processing industries to separate solid-liquid or liquid-liquid mixtures.

[0003] During long-term operation, the transmission system of a belt centrifuge is susceptible to external dust, which can cause significant noise and affect the equipment's performance. Dust adhering to the surface of the belt and pulleys reduces the coefficient of friction, causing the belt to slip at high speeds and generating irregular frictional noise. Since belt slippage is usually intermittent, the noise variation is also unstable, leading to decreased equipment stability. Simultaneously, dust accumulation on the pulleys or drum surface causes uneven mass distribution, resulting in an eccentric effect during high-speed rotation, inducing vibration and further exacerbating noise generation. This phenomenon is similar to the vibration of a rotating body under uneven load; as the equipment's rotational speed increases, the vibration amplitude also increases, ultimately leading to further noise amplification.

[0004] In view of this, we propose a low-noise transmission mechanism for a belt centrifuge. Utility Model Content

[0005] The purpose of this utility model is to provide a low-noise transmission mechanism for a belt centrifuge. This low-noise transmission mechanism for a belt centrifuge solves the problem that dust adhering to the transmission system can cause belt slippage, uneven mass distribution, and bearing wear, thereby causing vibration and unstable noise.

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

[0007] A low-noise transmission mechanism for a belt-driven centrifuge includes a centrifuge with a transmission mechanism mounted on it. The transmission mechanism drives the centrifuge and includes: a drive motor fixedly connected to the bottom of the centrifuge for providing power; an input shaft mounted on the centrifuge for transmitting power to it; and a dust cover fixedly connected to the housing of the drive motor, with an L-shaped rod on its inner wall. An upper connecting plate is fixedly connected to the bottom of the centrifuge, and one end of the L-shaped rod is fixedly... The L-shaped rod is fixedly connected to the inner wall of the dust cover, and the other end of the L-shaped rod is fixedly connected to the upper connecting plate. A transmission belt connects the output shaft and input shaft of the drive motor. An exhaust fan is fixedly connected to the bottom of the input shaft. The exhaust fan has fan blades in the middle and a fixed ring on its outer edge. The fixed ring of the exhaust fan is rotatably connected to the inner wall of the dust cover. An annular filter screen is provided between the dust cover and the upper connecting plate. A reinforcing mechanism is provided on the dust cover to remove dust from the surface of the annular filter screen.

[0008] Preferably, the dust cover is rotatably connected to the dust cover and the upper connecting plate to ensure the dustproof effect.

[0009] Preferably, the input shaft is rotatably connected to the upper connecting plate to support and stabilize the input shaft.

[0010] Preferably, the output shaft of the drive motor is rotatably connected to the dust cover to ensure that the stability of the dust cover is not affected while the output shaft rotates at high speed.

[0011] Preferably, the centrifuge is provided with a base at the bottom to provide stable support.

[0012] Preferably, the reinforcing mechanism includes an outer connecting magnetic ring, an inner connecting column, and an inner connecting magnetic ring. The outer connecting magnetic ring is fixedly connected to the bottom of the annular filter screen and is rotatably connected to the outer wall of the dust cover.

[0013] Preferably, an inner connecting post is fixedly connected to the inner wall of the input shaft, and an inner connecting magnetic ring is fixedly connected to the outer wall of the inner connecting post. The outer wall of the inner connecting magnetic ring is rotatably connected to the inner wall of the dust cover.

[0014] By employing the above technical solution, this utility model provides a low-noise transmission mechanism for a belt centrifuge. It possesses at least the following beneficial effects:

[0015] 1. This utility model incorporates a transmission mechanism that allows the airflow generated by the exhaust fan to expel heat from inside the dust cover, ensuring effective cooling and ventilation of the equipment. The outer ring of the exhaust fan is rotatably connected to the inner wall of the dust cover. This ring supports the exhaust fan and ensures stable operation, reducing vibration and friction caused by high-speed rotation. An annular filter screen is installed between the dust cover and the upper connecting plate. When the exhaust fan rotates, the airflow passes through the annular filter screen, filtering dust particles from the air and preventing external dust from entering the transmission system. The annular filter screen protects the drive belt, input shaft, and other critical components, extending the equipment's service life and improving operational stability.

[0016] 2. This utility model incorporates a reinforcing mechanism. When the input shaft rotates, it drives the inner connecting column to rotate, which in turn drives the inner connecting magnetic ring to rotate. As the inner connecting magnetic ring rotates, it drives the outer connecting magnetic ring to rotate via a magnetic coupling. The outer connecting magnetic ring then drives the annular filter screen to rotate, using centrifugal force to fling out dust and impurities from the surface of the annular filter screen, keeping it clean and ensuring efficient ventilation and heat dissipation within the equipment. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the input shaft structure in this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the dust cover in this utility model;

[0021] Figure 4 This is a schematic diagram of the reinforcing mechanism in this utility model.

[0022] In the diagram: 1. Centrifuge; 2. Transmission mechanism; 21. Drive motor; 22. Input shaft; 23. Dust cover; 24. Upper connecting plate; 25. Transmission belt; 26. Exhaust fan; 27. Annular filter screen; 28. L-shaped rod; 3. Reinforcing mechanism; 31. Outer connecting magnetic ring; 32. Inner connecting column; 33. Inner connecting magnetic ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 - Figure 4 As shown, this utility model provides a technical solution: a low-noise transmission mechanism for a belt-driven centrifuge, including a centrifuge 1, a transmission mechanism 2 on the centrifuge 1, the transmission mechanism 2 for driving the centrifuge 1 to operate, the transmission mechanism 2 including: a drive motor 21, the drive motor 21 is fixedly connected to the bottom of the centrifuge 1 for providing power; an input shaft 22, the input shaft 22 is mounted on the centrifuge 1 for transmitting power to the centrifuge 1; a dust cover 23, the dust cover 23 is fixedly connected to the outer shell of the drive motor 21, an L-shaped rod 28 is provided on the inner wall of the dust cover 23, an upper connecting plate 24 is fixedly connected to the bottom of the centrifuge 1, one end of the L-shaped rod 28 is fixedly connected to the inner wall of the dust cover 23, and the other end of the L-shaped rod 28 is fixedly connected to the upper connecting plate 24. The L-shaped rod 28 is used to enhance the fixing strength between the dust cover 23 and the upper connecting plate 24 and improve the stability of the overall structure. To prevent the dust cover 23 from shifting or loosening due to vibration or airflow during equipment operation, a transmission belt 25 is used to drive the output shaft of the drive motor 21 and the input shaft 22. An exhaust fan 26 is fixedly connected to the bottom of the input shaft 22. The middle part of the exhaust fan 26 has fan blades, and the outer ring of the exhaust fan 26 has a fixing ring. The fixing ring of the exhaust fan 26 is rotatably connected to the inner wall of the dust cover 23. The fan blades of the exhaust fan 26 are used to generate airflow to improve the heat dissipation and ventilation effect inside the equipment. The fixing ring is used to support the exhaust fan 26 and, through its rotatable connection with the inner wall of the dust cover 23, keeps the exhaust fan 26 stable during operation, while reducing vibration and friction caused by high-speed rotation. An annular filter screen 27 is set between the dust cover 23 and the upper connecting plate 24. The annular filter screen 27 is set between the dust cover 23 and the upper connecting plate 24 and forms a linkage relationship with the exhaust fan 26. When the exhaust fan 26 rotates, the airflow generated by the fan blades can drive the airflow, expelling dust and heat from inside the equipment. At the same time, the annular filter screen 27 filters dust particles in the air, preventing external dust from entering the transmission mechanism 2, thereby reducing the impact of dust on the transmission belt 25, input shaft 22 and bearings, improving the stability of equipment operation and extending its service life. The dust cover 23 is equipped with a reinforcing mechanism 3, which is used to remove dust from the surface of the annular filter screen 27.

[0025] Dust cover 23 is rotatably connected to dust cover 23 and upper connecting plate 24. This ensures dust protection and allows the dust cover 23 to adapt to minor vibrations during equipment operation, reducing stress concentration caused by rigid fixing, thereby improving the overall structural stability and preventing loosening or damage caused by vibration. Input shaft 22 is rotatably connected to upper connecting plate 24 to support and stabilize input shaft 22, ensuring smooth operation during high-speed rotation. This also reduces friction and vibration during rotation, improving the overall working efficiency and service life of transmission mechanism 2. The output shaft of drive motor 21 is rotatably connected to dust cover 23 to ensure that the output shaft does not affect the stability of dust cover 23 while rotating at high speed. This allows dust cover 23 to be fixed independently of rotating parts on centrifuge 1, effectively preventing dust from entering transmission mechanism 2, reducing the impact of dust on the transmission system, and improving the reliability and service life of equipment operation. A base is provided at the bottom of centrifuge 1 to provide stable support, ensuring that centrifuge 1 remains balanced during operation and reducing tilting or movement caused by vibration or external forces, thereby improving equipment stability and operational safety.

[0026] The reinforcing mechanism 3 includes an outer connecting magnetic ring 31, an inner connecting column 32, and an inner connecting magnetic ring 33. The outer connecting magnetic ring 31 is fixedly connected to the bottom of the annular filter screen 27. The outer connecting magnetic ring 31 is rotatably connected to the outer wall of the dust cover 23. The inner connecting column 32 is fixedly connected to the inner wall of the input shaft 22. The inner connecting magnetic ring 33 is fixedly connected to the outer wall of the inner connecting column 32. The outer wall of the inner connecting magnetic ring 33 is rotatably connected to the inner wall of the dust cover 23. The inner connecting magnetic ring 33 and the outer connecting magnetic ring 31 are directly opposite each other. When the inner connecting magnetic ring 33 rotates, it drives the outer connecting magnetic ring 31 to rotate, similar to the principle of a magnetic coupling.

[0027] In the low-noise transmission mechanism of the belt centrifuge of this utility model, when the centrifuge 1 is started, the drive motor 21 begins to operate. The output shaft of the drive motor 21 is connected to the transmission belt 25, which drives the transmission belt 25 to rotate, transmitting power to the input shaft 22. An exhaust fan 26 is fixedly connected to the bottom of the input shaft 22. When the input shaft 22 rotates, the blades of the exhaust fan 26 begin to rotate, generating airflow. The airflow generated by the exhaust fan 26 dissipates heat from inside the dust cover 23, ensuring the cooling and ventilation effect of the equipment. The outer ring of the exhaust fan 26 is rotatably connected to the inner wall of the dust cover 23. The ring supports the exhaust fan 26 and ensures its stable operation, reducing vibration and friction caused by high-speed rotation. An annular filter screen 27 is provided between the dust cover 23 and the upper connecting plate 24. When the exhaust fan 26 rotates, the airflow generated by the exhaust fan 26 passes through the annular filter screen 27, filtering dust particles in the air and preventing external dust from entering the transmission system. The annular filter screen 27 serves to protect the transmission belt 25, input shaft 22 and other key components, extending the service life of the equipment and improving operational stability.

[0028] When the input shaft 22 rotates, it drives the inner connecting column 32 to rotate, which in turn drives the inner connecting magnetic ring 33 to rotate. When the inner connecting magnetic ring 33 rotates, it drives the outer connecting magnetic ring 31 to rotate together through the principle of magnetic coupling. The outer connecting magnetic ring 31 drives the annular filter screen 27 to rotate, using centrifugal force to throw out dust and impurities from the surface of the annular filter screen 27, keeping the annular filter screen 27 clean and ensuring the ventilation and heat dissipation efficiency of the equipment.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-noise transmission mechanism for a belt-driven centrifuge, comprising a centrifuge (1), characterized in that: The centrifuge (1) is provided with a transmission mechanism (2), which is used to drive the centrifuge (1) to operate. The transmission mechanism (2) includes: A drive motor (21) is fixedly connected to the bottom of the centrifuge (1) to provide power; An input shaft (22) is mounted on the centrifuge (1) for transmitting power to the centrifuge (1). A dust cover (23) is fixedly connected to the outer shell of the drive motor (21). An L-shaped rod (28) is provided on the inner wall of the dust cover (23). An upper connecting plate (24) is fixedly connected to the bottom of the centrifuge (1). One end of the L-shaped rod (28) is fixedly connected to the inner wall of the dust cover (23), and the other end of the L-shaped rod (28) is fixedly connected to the upper connecting plate (24). The output shaft of the drive motor (21) and the input shaft (22) are connected by the transmission belt (25). The bottom of the input shaft (22) is fixedly connected to the exhaust fan (26). The middle part of the exhaust fan (26) is the fan blade. The outer ring of the exhaust fan (26) is the fixed ring. The fixed ring of the exhaust fan (26) is rotatably connected to the inner wall of the dust cover (23). An annular filter screen (27) is provided between the dust cover (23) and the upper connecting plate (24). The dust cover (23) is provided with a reinforcing mechanism (3), which is used to remove dust from the surface of the annular filter screen (27).

2. The low-noise transmission mechanism of a belt centrifuge according to claim 1, characterized in that: The dust cover (23) is rotatably connected to the dust cover (23) and the upper connecting plate (24) to ensure the dustproof effect.

3. The low-noise transmission mechanism of a belt centrifuge according to claim 1, characterized in that: The input shaft (22) is rotatably connected to the upper connecting plate (24) to support and stabilize the input shaft (22).

4. The low-noise transmission mechanism of a belt centrifuge according to claim 1, characterized in that: The output shaft of the drive motor (21) is rotatably connected to the dust cover (23) to ensure that the stability of the dust cover (23) is not affected while the output shaft rotates at high speed.

5. The low-noise transmission mechanism of a belt centrifuge according to claim 1, characterized in that: The centrifuge (1) is provided with a base at its bottom for stable support.

6. The low-noise transmission mechanism of a belt centrifuge according to claim 1, characterized in that: The strengthening mechanism (3) includes an outer connecting magnetic ring (31), an inner connecting column (32), and an inner connecting magnetic ring (33). The outer connecting magnetic ring (31) is fixedly connected to the bottom of the annular filter screen (27), and the outer connecting magnetic ring (31) is rotatably connected to the outer wall of the dust cover (23).

7. The low-noise transmission mechanism of a belt centrifuge according to claim 6, characterized in that: An inner connecting column (32) is fixedly connected to the inner wall of the input shaft (22), and an inner connecting magnetic ring (33) is fixedly connected to the outer wall of the inner connecting column (32). The outer wall of the inner connecting magnetic ring (33) is rotatably connected to the inner wall of the dust cover (23).

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