A centrifugal fan hydraulic drum brake device

Abstract

The application discloses a centrifugal fan hydraulic drum brake device, which comprises a shell part sleeved on a main shaft part, a fixed part arranged on the main shaft part, a hydraulic part arranged in a ring array on the fixed part and connected with an external control part, an extension part arranged in a ring array on the outer edge of the fixed part and corresponding to the position of the hydraulic part, a guide part arranged symmetrically on both sides of the extension part, and a brake part arranged on the extension end of the extension part. The control part controls the batch operation of each hydraulic part, so that the corresponding extension part drives the brake part to extend towards the shell part, the brake part is in contact with a friction assembly, and the main shaft part is stopped. The brake pad is divided into multiple combined structures, the loss of the whole brake pad is reduced, the rotating shaft is decelerated and then braked through the step ring pressure design, the brake effect is improved, and the loss of the brake pad is further reduced.

Description

Technical Field

[0001] This invention belongs to the technical field of drum brake equipment, and particularly relates to a hydraulic drum brake device for centrifugal fans. Background Technology

[0002] Thermal power plants are the most common type of electricity production facility. Electricity is the primary energy source for industry, hence power plants are often referred to as the heart of industry. During production, boiler combustion in a power plant must operate continuously without interruption, thus requiring high stability. Boilers typically employ forced draft fans to provide the necessary oxygen for combustion; primary air fans to power the pulverizing system; and induced draft fans to pressurize the tail flue and maintain negative pressure in the furnace, collectively ensuring stable combustion within the furnace. All three types of fans are primarily centrifugal fans.

[0003] During operation, most current wind turbines operate in parallel, connected by a connecting flue. Although the connecting flue is equipped with dampers, these dampers are not very airtight. When one side of the wind turbine stops or the wind turbine inverter malfunctions, the stopped wind turbine is prone to reverse rotation. 。 To prevent the fan from failing to start due to increased starting current caused by reverse rotation, which could burn out the relay or motor, a braking device needs to be added to the fan to assist in braking and prevent reverse rotation.

[0004] Existing centrifugal fans typically use drum brakes for braking. A typical drum brake consists of a rotating part, a stationary part, an actuating part, and a positioning and adjusting device. It comprises a brake base plate, brake caliper, brake shoes, and related connecting rods, springs, pins, and a brake drum. Simply put, a drum brake utilizes the friction between stationary brake shoes inside the brake drum to reduce the rotational speed of the shaft. However, traditional brake shoes and brake drums have a small contact area during braking, resulting in less than ideal braking performance. Braking via brake shoes during high-speed shaft movement not only has poor braking effect but also causes significant wear and tear on the brake shoes. Summary of the Invention

[0005] The purpose of this invention is to provide a hydraulic drum brake device for centrifugal fans to solve the technical problems of poor braking effect and high wear of brake pads.

[0006] To solve the above-mentioned technical problems, the specific technical solution of the present invention is as follows:

[0007] In some embodiments of this application, a centrifugal fan hydraulic drum brake device is provided, comprising:

[0008] Main shaft assembly, wherein the main shaft assembly is the rotating shaft of a centrifugal fan;

[0009] A housing component is sleeved on the spindle component and is concentric with the spindle component. The housing component has a cavity inside and a friction assembly is provided on the inner wall of the housing component.

[0010] A fixing component is provided on the main spindle component and is fixedly connected to the main spindle component;

[0011] Hydraulic components are arranged in a ring array on a fixed component and are connected to an external control component.

[0012] The telescopic component is arranged in a ring array on the outer edge of the fixed component, corresponding to the position of the hydraulic component, and connected to the hydraulic component through a pipe.

[0013] The guide components are symmetrically arranged on both sides of the telescopic component and are fixedly connected to the fixed component.

[0014] A braking component is provided on the telescopic end of the telescopic component and is also connected to the guide component;

[0015] The control unit controls the hydraulic components to work in batches, causing the corresponding telescopic components to extend the brake components toward the housing components, so that the brake components come into contact with the friction components, thereby stopping the rotation of the main shaft components.

[0016] In some embodiments of this application, a spraying component is further included, which is disposed on the housing component and is not on the same plane as the fixing component;

[0017] Spraying components, including:

[0018] The nozzle assembly is located on the inner wall of the top of the housing component, and its spray end corresponds to the position of the friction assembly.

[0019] A water storage component, wherein the water storage component is located at the bottom of the shell component, and its water inlet end penetrates through the shell component;

[0020] A negative pressure component is located on the top of the housing component. Its inlet end is connected to the outlet end pipe of the water storage component, and its outlet end is connected to the nozzle assembly.

[0021] In some embodiments of this application, the guide component is a modular structure, including:

[0022] A guide groove assembly is symmetrically arranged on the housing component, located on both sides of the telescopic component;

[0023] A guide post assembly is disposed in a guide groove assembly and is slidably connected to the guide groove assembly. One end of the guide post assembly is fixedly connected to a brake component, and the other end is provided with an elastic component.

[0024] The elastic component is connected to the guide groove component.

[0025] In some embodiments of this application, the braking component is a combined structure, including:

[0026] An arc-shaped plate assembly, wherein the arc-shaped plate assembly is fixedly connected to a guide component and a telescopic component respectively;

[0027] A wear-resistant component is disposed on the arc-shaped plate assembly, and the wear-resistant component is detachably connected to the arc-shaped plate assembly;

[0028] The wear-resistant component is provided with several protrusions.

[0029] In some embodiments of this application, a housing component is sleeved on the spindle component;

[0030] Hydraulic components are arranged in a ring array on the outer wall of the housing component;

[0031] The telescopic component is arranged in a ring array on the inner wall of the housing component, corresponding to the position of the hydraulic component, and its input end is connected to the output end of the hydraulic component.

[0032] The guide components are symmetrically arranged on the inner wall of the housing component, located on both sides of the telescopic component;

[0033] A braking component is provided on the telescopic end of the telescopic component and is also connected to the guide component.

[0034] In some embodiments of this application, the hydraulic components are modular structures, including:

[0035] A primary hydraulic assembly is arranged in a ring array on the outer wall of the housing component, and its output end is connected to the telescopic component.

[0036] A secondary hydraulic assembly is arranged in a ring array on the outer wall of the housing component, and its output end is connected to the telescopic component.

[0037] The primary hydraulic assembly and the secondary hydraulic assembly are arranged at intervals.

[0038] In some embodiments of this application, a manual control component is further included, wherein the manual control component is connected to a hydraulic component via a pipeline;

[0039] The manual control components include:

[0040] A housing assembly, wherein the housing assembly has an internal mounting cavity and a through groove on its top;

[0041] The first oil inlet channel is located on one side of the housing assembly and extends through the housing assembly into the mounting cavity.

[0042] The first oil outlet is located on the other side of the housing assembly and is offset from the first oil inlet. The first oil outlet passes through the housing assembly into the mounting cavity.

[0043] The first oil outlet is connected to the first-stage hydraulic assembly;

[0044] The second oil inlet channel is located on one side of the housing assembly, and it penetrates the housing assembly into the mounting cavity. It is on the same side as the first oil outlet channel.

[0045] The second oil outlet is located on the other side of the housing assembly and is offset from the second oil inlet. The first oil outlet passes through the housing assembly into the mounting cavity and is located on the same side as the first oil inlet.

[0046] The second oil outlet is connected to the secondary hydraulic assembly;

[0047] A sliding assembly, which is disposed in the mounting cavity, has a stepped shaft structure and is respectively provided with a first piston, a second piston and a third piston;

[0048] An oil tank assembly is mounted on a housing assembly. Its oil outlet is connected to the first oil inlet and the second oil inlet pipes, respectively, and its oil inlet is connected to the oil outlet of the hydraulic component.

[0049] The swing assembly is disposed in the through groove and is connected to the through groove through a rotating shaft. One end of the swing assembly is movably connected to the sliding assembly.

[0050] In some embodiments of this application, the thickness of the first piston is greater than the thickness of the second piston.

[0051] Compared with the prior art, the beneficial effects of the present invention are that by dividing the brake pads into multiple combined structures, the present invention reduces the wear on the overall brake pads. At the same time, by adopting a step-by-step ring pressure design, the rotating shaft is decelerated before braking, which not only improves the braking effect, but also further reduces the wear on the brake pads. Attached Figure Description

[0052] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0053] Figure 1 This is a schematic diagram of the overall internal structure of the outward pressing type provided in an embodiment of the present invention;

[0054] Figure 2 This is a schematic diagram of the overall internal structure of the spraying component provided in an embodiment of the present invention;

[0055] Figure 3 This is a schematic diagram of the overall internal structure of the inward pressing type provided in an embodiment of the present invention;

[0056] Figure 4 This is a schematic diagram of the overall structure of the manual control component provided in an embodiment of the present invention;

[0057] Figure 5 This is a schematic diagram of the internal structure of the manual control component provided in an embodiment of the present invention. Detailed Implementation

[0058] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0059] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0060] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0061] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0062] To better understand the purpose, structure, and function of this invention, the invention will be described in further detail below with reference to the accompanying drawings.

[0063] See appendix Figure 1 As shown, according to some embodiments of this application, the braking method using outward pressing specifically includes:

[0064] Main shaft component 1, wherein the main shaft component 1 is the rotating shaft of a centrifugal fan;

[0065] Housing component 3 is sleeved on the spindle component 1 and is concentric with the spindle component 1. The interior of the housing component 3 is a cavity and a friction assembly is provided on the inner wall of the housing component 3.

[0066] Fixed component 2 is disposed on the main spindle component 1 and is fixedly connected to the main spindle component 1;

[0067] The fixed component 2 is a fixed disk structure, which is fixed on the main spindle component 1 and rotates synchronously with the main spindle component 1.

[0068] Hydraulic component 4 is arranged in a ring array on fixed component 2 and is connected to external control component;

[0069] The hydraulic component 4 can be connected to the external control component via electrical signals or wireless signals. Since the connection method between the hydraulic component 4 and the control component has been disclosed in related technologies, it will not be described again in this embodiment.

[0070] The control component is a PLC control device or a central processing control device, and the control component can be selected according to the requirements. The structure of the control component has been disclosed in related technologies, so it will not be described again in this embodiment.

[0071] The hydraulic components 4 can work in groups. A pair of hydraulic components 4 can be used as a group, or several hydraulic components 4 in a ring array can be used as a group, depending on the requirements.

[0072] Telescopic component 5 is arranged in a ring array on the outer edge of fixed component 2, and its position corresponds to that of hydraulic component 4. It is connected to hydraulic component 4 through a pipe.

[0073] The telescopic component 5 is specifically a telescopic structure driven by the hydraulic component 4;

[0074] It should be noted that the telescopic component 5 is divided into a liquid storage tank and a telescopic rod. The bottom of the liquid storage tank is connected to the hydraulic component. The hydraulic component 4 supplies liquid to the liquid storage tank, thereby causing the telescopic rod to rise.

[0075] Guide component 6 is a modular structure, including:

[0076] The guide groove assembly is symmetrically arranged on the fixed component 2 and is located on both sides of the telescopic component 5;

[0077] A guide post assembly is disposed in a guide groove assembly and is slidably connected to the guide groove assembly. One end of the guide post assembly is fixedly connected to the brake component 7, and the other end is provided with an elastic component.

[0078] The elastic component is connected to the guide groove component.

[0079] Brake component 7 is a modular structure, including:

[0080] An arc-shaped plate assembly, which is fixedly connected to the guide component 6 and the telescopic component 5 respectively;

[0081] It should be noted that the arc-shaped plate assembly in this embodiment has a concave structure, and its curvature is the same as the inner wall curvature of the shell component 3.

[0082] A wear-resistant component is disposed on the arc-shaped plate assembly, and the wear-resistant component is detachably connected to the arc-shaped plate assembly;

[0083] The wear-resistant component is provided with several protrusions.

[0084] The technical effects achieved by the above technical solution in the embodiments of this application are as follows:

[0085] During braking, the control unit activates a single set of hydraulic components 4, causing the single set of telescopic components 5 to extend towards the housing component 3. This brings the single set of braking components 7 into contact with the friction assembly of the housing component 3, slowing down the main shaft component 1. The control unit then controls a second batch of hydraulic components 4 to repeat the above action, further slowing down the main shaft component 1. The control unit sequentially controls the remaining sets of hydraulic components 4 to slow down the main shaft component 1 in batches until the last set of hydraulic components 4 controls the telescopic components 5 to extend, stopping the main shaft component 1 from rotating and completing the braking operation. By using a batch-wise braking operation on the main shaft component 1, damage to the braking components 7 due to the large torque generated during the high-speed rotation of the main shaft component 1 is avoided. At the same time, dividing the braking components 7 into multiple parts reduces the overall wear and tear on the braking components 7, providing a basis for improving braking effect and reducing wear and tear on the braking components 7.

[0086] See appendix Figure 2 As shown, in one embodiment of this application, it further includes: a spraying component 8, which is disposed on the housing component 3 and is not on the same plane as the fixing component 2;

[0087] Spray component 8 includes:

[0088] The nozzle assembly 801 is located on the inner wall of the top of the housing component 3, and its spray end corresponds to the position of the friction assembly.

[0089] Water storage component 803, wherein the water storage component is located at the bottom of the shell component 3, and its water inlet end penetrates through the shell component 3;

[0090] The negative pressure component 802 is located on the top of the housing component 3. Its water inlet is connected to the water outlet pipe of the water storage component 803, and its water outlet is connected to the nozzle component 801.

[0091] Negative pressure component 802 is a negative pressure pump;

[0092] It should be noted that, in order to allow the high-temperature water vapor to escape, an air outlet can be provided on the shell component 3, and a filter device can be added inside the shell component 3 to filter out the moisture in the gas;

[0093] The technical effects achieved by the above technical solution in the embodiments of this application are as follows:

[0094] The nozzle assembly 801 sprays water to cool the contact area between the brake component 7 and the friction assembly, thereby reducing the temperature of the brake component 7 and the friction assembly and preventing the brake component 7 from malfunctioning due to high temperature. At the same time, it avoids the wear and tear of the brake component 7 caused by high temperature, improving the braking effect and the service life of the brake component 7. The excess liquid generated flows into the water storage assembly 803 through the water outlet at the bottom of the housing component 3 for recycling.

[0095] See appendix Figure 3 As shown, in one embodiment of this application, an inward pressing braking method is adopted, which specifically includes:

[0096] Housing component 3, which is sleeved on the spindle component 1;

[0097] The housing component 3 is concentric with the spindle component 1, and there is a gap between the housing component 3 and the spindle component 1.

[0098] Hydraulic component 4, which is arranged in a ring array on the outer wall of housing component 3;

[0099] Hydraulic component 4 is a modular structure, including:

[0100] A primary hydraulic component 401 is arranged in a ring array on the outer wall of the housing component 3, and its output end is connected to the telescopic component 5.

[0101] A secondary hydraulic component 402 is arranged in a ring array on the outer wall of the housing component 3, and its output end is connected to the telescopic component 5.

[0102] The primary hydraulic component 401 and the secondary hydraulic component 402 are arranged at intervals.

[0103] Telescopic component 5 is arranged in a ring array on the inner wall of housing component 3, corresponding to the position of hydraulic component 4, and its input end is connected to the output end of hydraulic component 4.

[0104] The telescopic component 5 is specifically a telescopic structure driven by the hydraulic component 4;

[0105] Guide component 6 is a modular structure, including:

[0106] The guide groove assembly is symmetrically arranged on the housing component 3 and is located on both sides of the telescopic component 5;

[0107] A guide post assembly is disposed in a guide groove assembly and is slidably connected to the guide groove assembly. One end of the guide post assembly is fixedly connected to the brake component 7, and the other end is provided with an elastic component.

[0108] The elastic component is connected to the guide groove component;

[0109] The elastic component is a spring, which facilitates the reset of the guide post assembly;

[0110] The guide component 6 is used to enable the brake component 7 to maintain a balanced state when moving and to move along the corresponding axial direction;

[0111] Brake component 7 is a modular structure, including:

[0112] An arc-shaped plate assembly, which is fixedly connected to the guide component 6 and the telescopic component 5 respectively;

[0113] It should be noted that the arc plate assembly in this embodiment is a concave structure, and its curvature is the same as that of the outer wall of the main shaft component 1.

[0114] A wear-resistant component is disposed on an arc-shaped plate assembly and is detachably connected to the arc-shaped plate assembly; the wear-resistant component is provided with several protrusions.

[0115] It should be noted that the brake component 7 corresponding to the first-stage hydraulic assembly 401 and the brake component 7 corresponding to the second-stage hydraulic assembly 402 use different wear-resistant component materials. The brake component 7 corresponding to the first-stage hydraulic assembly 401 mainly serves to reduce the rotational speed of the spindle component 1, while the brake component 7 corresponding to the second-stage hydraulic assembly 402 mainly serves to brake the rotation of the spindle component 1.

[0116] The technical effects achieved by the above technical solutions and embodiments of this application are as follows:

[0117] The hydraulic components 4 are controlled by the control unit to work in batches. For example, during braking, the control unit controls the first-stage hydraulic component 401 to work, causing the corresponding telescopic component 5 of the first-stage hydraulic component 401 to extend towards the main shaft component 1, so that the brake component 7 on the corresponding telescopic component 5 contacts the main shaft component 1, thereby reducing the speed of the main shaft component 1. Then, the control unit controls the second-stage hydraulic component 402 to work, causing the corresponding telescopic component 5 of the second-stage hydraulic component 4 to extend along the main shaft, so that the brake component 7 on the corresponding telescopic component 5 contacts the main shaft component 1, thereby braking the main shaft component 1. By adopting grouped and batched operation, the main shaft component 1 can brake quickly, while reducing the wear on the brake component 7 and improving the braking effect.

[0118] See appendix Figure 4-5 As shown, in one embodiment of this application, it further includes: a manual control component 9, which is connected to the hydraulic component 4 via a pipeline;

[0119] Manual control component 9 includes:

[0120] The housing assembly 901 has an internal mounting cavity and a through groove 9011 on its top.

[0121] The first oil inlet channel 904 is located on one side of the housing assembly 901 and extends through the housing assembly 901 into the mounting cavity.

[0122] The first oil outlet 905 is located on the other side of the housing assembly 901 and is offset from the first oil inlet 904. The first oil outlet 905 passes through the housing assembly 901 into the mounting cavity.

[0123] The first oil outlet 905 is connected to the first-stage hydraulic assembly 401;

[0124] The second oil inlet channel 906 is located on one side of the housing assembly 901, and it passes through the housing assembly 901 into the mounting cavity. It is on the same side as the first oil outlet channel 905.

[0125] The second oil outlet 907 is located on the other side of the housing assembly 901 and is offset from the second oil inlet 906. The first oil outlet 905 passes through the housing assembly 901 into the mounting cavity and is on the same side as the first oil inlet 904.

[0126] The second oil outlet 907 is connected to the secondary hydraulic assembly 402;

[0127] The first oil outlet 905 and the first oil inlet 904 have the same inner diameter, and the relative distance between the first oil outlet 905 and the first oil inlet 904 is the same as the inner diameter of the first oil inlet 904.

[0128] The second oil outlet 907 and the second oil inlet 906 have the same inner diameter, and the relative distance between the second oil outlet 907 and the second oil inlet 906 is the same as the inner diameter of the second oil inlet 906.

[0129] The sliding assembly 903 is disposed in the mounting cavity and has a stepped shaft structure. It is provided with a first piston 9031, a second piston 9032 and a third piston 9033 respectively. The thickness of the first piston 9031 is greater than the thickness of the second piston 9032. Specifically, the thickness of the first piston 9031 is four times the thickness of the second piston 9032.

[0130] The thickness of the first piston 9031 is slightly larger than the inner diameter of the first oil inlet 904 and the first oil outlet 905;

[0131] It should be noted that the function of the third piston 9033 is to prevent the liquid entering from the first oil inlet 904 from flowing into the cavity where the third piston 9033 is located.

[0132] Oil tank assembly 9012 is mounted on housing assembly 901. Its oil outlet is connected to the first oil inlet channel 904 and the second oil inlet channel 906 respectively, and its oil inlet is connected to the oil outlet of hydraulic component 4.

[0133] The swing assembly 902 is disposed in the through groove and is connected to the through groove through a rotating shaft. One end of the swing assembly 902 is movably connected to the sliding assembly 903.

[0134] The swing assembly 902 is a swing rod;

[0135] The technical effects achieved by the above technical solution in the embodiments of this application are as follows:

[0136] Initially, the first piston 9031 is located at the outlet of the first oil inlet 904, which is closed; the second piston 9032 is located at the outlet of the second oil inlet 906 and the inlet of the second oil outlet 907, which is also closed. When the first-stage hydraulic assembly 401 is activated, the swing assembly 902 is pushed, causing the sliding assembly 903 to move. At this time, the first piston 9031 is located between the first oil outlet 905 and the second oil inlet 906, and the second piston 9032 is located at the outlet of the second oil inlet 906, which is still closed. In the closed state, the second oil outlet 907 is opened, and the first piston 9031 blocks hydraulic oil from entering the second oil outlet 907. When the secondary hydraulic component 402 is started, the swing component 902 is pushed, causing the swing component 902 to continue to drive the sliding component 903 to move. At this time, the first piston 9031 is located between the first oil outlet 905 and the second oil inlet 906, and the second piston 9032 is located on the other side of the second oil inlet 906. At this time, the second oil inlet 906 is opened, and then pressure is supplied to the secondary hydraulic component 402. The batch operation of the hydraulically controlled brake component 7 makes the operation more stable. The hand-push method makes the operation more convenient.

[0137] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0138] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydraulic drum brake device for a centrifugal fan, characterized in that, include: Main shaft assembly, wherein the main shaft assembly is the rotating shaft of a centrifugal fan; A housing component is sleeved on the spindle component and is concentric with the spindle component. The housing component has a cavity inside and a friction assembly is provided on the inner wall of the housing component. A fixing component is provided on the main spindle component and is fixedly connected to the main spindle component; Hydraulic components are arranged in a ring array on a fixed component and are connected to an external control component. The telescopic component is arranged in a ring array on the outer edge of the fixed component, corresponding to the position of the hydraulic component, and connected to the hydraulic component through a pipe. The guide components are symmetrically arranged on both sides of the telescopic component and are fixedly connected to the fixed component. A braking component is provided on the telescopic end of the telescopic component and is also connected to the guide component; The control unit controls the hydraulic components to work in batches, causing the corresponding telescopic components to drive the brake components to extend towards the housing components, so that the brake components come into contact with the friction components, thereby stopping the rotation of the main shaft components; It also includes: a spraying component, which is disposed on the housing component and is not on the same plane as the fixing component; Spraying components, including: The nozzle assembly is located on the inner wall of the top of the housing component, and its spray end corresponds to the position of the friction assembly. A water storage component, wherein the water storage component is located at the bottom of the shell component and its water inlet end penetrates through the shell component; A negative pressure component is located on the top of the housing component. Its inlet end is connected to the outlet end pipe of the water storage component, and its outlet end is connected to the nozzle assembly. The guide component is a modular structure, including: A guide groove assembly is symmetrically arranged on the housing component, located on both sides of the telescopic component; A guide post assembly is disposed in a guide groove assembly and is slidably connected to the guide groove assembly. One end of the guide post assembly is fixedly connected to a brake component, and the other end is provided with an elastic component. The elastic component is connected to the guide groove component; The brake components are a modular structure, including: An arc-shaped plate assembly, wherein the arc-shaped plate assembly is fixedly connected to a guide component and a telescopic component respectively; A wear-resistant component is disposed on the arc-shaped plate assembly, and the wear-resistant component is detachably connected to the arc-shaped plate assembly; The wear-resistant component is provided with several protrusions; A housing component, which is sleeved on the spindle component; Hydraulic components are arranged in a ring array on the outer wall of the housing component; The telescopic component is arranged in a ring array on the inner wall of the housing component, corresponding to the position of the hydraulic component, and its input end is connected to the output end of the hydraulic component. The guide components are symmetrically arranged on the inner wall of the housing component, located on both sides of the telescopic component; A braking component is provided on the telescopic end of the telescopic component and is also connected to the guide component; The hydraulic component is a modular structure, including: A primary hydraulic assembly is arranged in a ring array on the outer wall of the housing component, and its output end is connected to the telescopic component. A secondary hydraulic assembly is arranged in a ring array on the outer wall of the housing component, and its output end is connected to the telescopic component. The primary hydraulic assembly and the secondary hydraulic assembly are arranged at intervals; It also includes: a manual control component, which is connected to the hydraulic component via a pipeline; The manual control components include: A housing assembly, wherein the housing assembly has an internal mounting cavity and a through groove on its top; The first oil inlet channel is located on one side of the housing assembly and extends through the housing assembly into the mounting cavity. The first oil outlet is located on the other side of the housing assembly and is offset from the first oil inlet. The first oil outlet passes through the housing assembly into the mounting cavity. The first oil outlet is connected to the first-stage hydraulic assembly; The second oil inlet channel is located on one side of the housing assembly, and it penetrates the housing assembly into the mounting cavity. It is on the same side as the first oil outlet channel. The second oil outlet is located on the other side of the housing assembly and is offset from the second oil inlet. The first oil outlet passes through the housing assembly into the mounting cavity and is located on the same side as the first oil inlet. The second oil outlet is connected to the secondary hydraulic assembly; A sliding assembly, which is disposed in the mounting cavity, has a stepped shaft structure and is respectively provided with a first piston, a second piston and a third piston; An oil tank assembly is mounted on a housing assembly. Its oil outlet is connected to the first oil inlet and the second oil inlet pipes, respectively, and its oil inlet is connected to the oil outlet of the hydraulic component. The swing assembly is disposed in the through groove and is connected to the through groove through a rotating shaft. One end of the swing assembly is movably connected to the sliding assembly.

2. The centrifugal fan hydraulic drum brake device according to claim 1, characterized in that, The thickness of the first piston is greater than the thickness of the second piston.

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