A vortex hydraulic segmented disc brake and belt conveyor

Abstract

The application provides a vortex hydraulic segmented disc brake, and belongs to the technical field of brakes.The vortex hydraulic segmented disc brake comprises a brake frame, a brake disc rotatably installed on the brake frame, and a brake assembly comprising an electromagnetic induction brake and a hydraulic brake and arranged at two ends of the brake disc.When the brake disc rotates at a speed higher than a first preset speed, the electromagnetic induction brake performs electromagnetic vortex braking on the brake disc; when the brake disc rotates at a speed lower than the first preset speed and higher than a second preset speed, the electromagnetic induction brake and the hydraulic brake jointly brake the brake disc; and when the brake disc rotates at a speed lower than the second preset speed, the hydraulic brake performs friction braking on the brake disc.The vortex hydraulic segmented disc brake reduces sparks and abrasion generated during traditional friction braking, prolongs the service life of the brake disc and the brake block, and significantly improves the safety of a mine belt conveyor during underground operation.The application further provides a belt conveyor.

Description

Technical Field

[0001] The present invention relates to the technical field of brakes, in particular to an eddy current hydraulic segmented disc brake and a belt conveyor. Background Art

[0002] The disc brake of the mining belt conveyor is a key safety device for underground material transportation, and is mainly used for the shutdown and emergency braking of the belt conveyor.

[0003] In the prior art, when a disc brake brakes an underground belt conveyor, it relies on high-speed mechanical friction between a brake block and a brake disc to slow down or stop the running speed of the underground belt conveyor.

[0004] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: under the harsh working conditions underground, the brake pads and brake discs wear out quickly and have a short service life, which in turn increases the equipment maintenance cost and causes the belt conveyor to be frequently shut down for component replacement; more seriously, during high-speed braking, the high-temperature sparks generated by the friction between the brake pads and brake discs can easily ignite the flammable gases accumulated underground, which may cause major safety accidents. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, the purpose of the present invention is to provide an eddy current hydraulic segmented disc brake and a belt conveyor, so as to achieve safe and efficient braking of the belt conveyor, reduce the wear of the brake pads and brake discs, and extend the service life.

[0007] To achieve the above objectives, the present invention provides, in a first aspect, an eddy current hydraulic segmented disc brake, comprising:

[0008] brake rack;

[0009] a brake disc rotatably mounted on the brake frame, one end of the brake disc being used to connect to a roller of a belt conveyor;

[0010] Braking components, including electromagnetic induction brake components and hydraulic brake components, are provided at both ends of the brake disc;

[0011] When the brake is applied, when the rotational speed of the brake disc is higher than a first preset rotational speed, the electromagnetic induction brake component applies electromagnetic eddy current braking to the brake disc; when the rotational speed of the brake disc is lower than the first preset rotational speed and higher than a second preset rotational speed, the electromagnetic induction brake component and the hydraulic brake component jointly brake the brake disc; when the rotational speed of the brake disc is lower than the second preset rotational speed, the hydraulic brake component applies friction braking to the brake disc.

[0012] According to one embodiment of the present application, the brake frame comprises:

[0013] a base;

[0014] a brake disc support arranged on the base for supporting the brake disc and enabling rotation of the brake disc;

[0015] a hydraulic brake support arranged at both ends of the brake disc in the radial direction.

[0016] According to one embodiment of the present application, the brake frame further comprises a support cover plate detachably arranged above the hydraulic brake support to cover the upper edge of the brake disc.

[0017] According to one embodiment of the present application, the hydraulic brake member is detachably connected with the hydraulic brake support, and the hydraulic brake member has hydraulic control telescopic brake blocks arranged opposite to the brake disc.

[0018] According to one embodiment of the present application, the brake disc comprises:

[0019] a disc body made of steel;

[0020] a coating covering both end faces of the disc body;

[0021] a connecting flange, one end of which is connected with the disc body;

[0022] a resilient coupling, one end of which is connected with the other end of the connecting flange, and the other end of the resilient coupling is used for connecting the drum of the belt conveyor.

[0023] According to one embodiment of the present application, the electromagnetic induction brake member comprises:

[0024] an electromagnetic induction support comprising a tube body and a plurality of coil boxes arranged around the outer wall of the tube body;

[0025] a plurality of electromagnetic induction coil assemblies arranged in the coil boxes, the electromagnetic induction coil assemblies are alternately arranged towards the magnetic poles of the brake disc, and the magnetic field generated by the electromagnetic induction coil assemblies after energization is perpendicular to the brake disc.

[0026] According to one embodiment of the present application, the brake disc comprises a shear pin, which is disconnected from the power transmission of the drum of the belt conveyor when the torque exceeds a set value.

[0027] According to one embodiment of the present application, the electromagnetic induction brake member further comprises a plurality of coil covers, the coil covers are closed with the coil boxes, the coil covers are made of plastic, and a plurality of inclined heat dissipation holes are formed in the coil covers.

[0028] According to one embodiment of the present invention, an electromagnetic control system is further included. The electromagnetic control system is connected to the electromagnetic induction brake component and is used to adjust the current size and direction of the electromagnetic induction brake component to achieve control of the braking torque.

[0029] A second aspect of the present invention provides a belt conveyor comprising the eddy current hydraulic segmented disc brake according to the first aspect.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. According to the eddy current hydraulic segmented disc brake of the present invention, electromagnetic induction brake parts and hydraulic brake parts are arranged at both ends of the brake disc, and eddy currents are generated in the brake disc by controlling the current. The magnetic field generated by the eddy current interacts with the electromagnetic field to decelerate the brake disc; after decelerating to a lower speed, the electromagnetic induction brake part and the hydraulic brake part brake at the same time; after decelerating to an even lower speed, hydraulic braking is used to achieve mechanical locking, thereby realizing segmented braking of the belt conveyor, reducing the sparks and wear generated by traditional friction braking, extending the service life of the brake disc and brake pads, and significantly improving the safety of mining belt conveyors in underground operations.

[0032] 2. Innovative electromagnetic braking design achieves efficient and safe braking. The magnetic poles of the electromagnetic coil assembly in the present invention are arranged in an alternating symmetrical pattern to form a uniform magnetic circuit on both sides of the brake disc. During high-speed operation, contactless deceleration is achieved through eddy current braking, avoiding the risk of sparks during high-speed braking of the brake disc. The electromagnetic control system can accurately control the braking torque, making the braking process flexible and adjustable. The excitation coil adopts a multi-point symmetrical distribution so that the electromagnetic field evenly covers the brake disc surface, thereby improving the braking efficiency; at the same time, a good thermal management effect is achieved through balanced magnetic field distribution. In addition, the coil cover installed on the coil box is provided with heat dissipation holes, which utilize the rotating airflow of the brake disc to achieve a passive cooling effect, solving the heat dissipation problem of traditional electromagnetic braking devices in closed wells.

[0033] 3. Automatically switching collaborative braking strategy. Through an innovative eddy current-hydraulic collaborative braking mechanism, this invention effectively solves the industry challenge of insufficient braking force under low-speed conditions caused by pure eddy current braking. Electromagnetic braking is used at high speeds for wear-free deceleration, while hydraulic braking is switched to at low speeds to ensure stable braking performance across the entire speed range. The hydraulic brakes offer absolute zero-speed locking capability, making them ideal for demanding operating conditions such as high-angle conveyors.

[0034] 4. Modular Design and Optimized Engineering Adaptability. The eddy current hydraulic segmented disc brake of this invention adopts a split structural design, with the electromagnetic induction brake component and the hydraulic brake component assembled independently, enabling quick assembly and disassembly for maintenance and reducing downtime. The brake disc utilizes a composite structure of a Q235 steel base and an Al2O3 coating, ensuring eddy current braking efficiency while improving wear resistance.

[0035] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components.

[0037] Figure 1 It is a schematic diagram of the overall structure of an eddy current hydraulic segmented disc brake proposed in one embodiment of the present invention.

[0038] Figure 2 The figure is a schematic structural diagram of a brake disc of an eddy current hydraulic segmented disc brake proposed in one embodiment of the present invention.

[0039] Figure 3 yes Figure 1 Schematic diagram of the eddy current hydraulic segmented disc brake with the brake components removed.

[0040] Figure 4 yes Figure 1 Schematic diagram of the eddy current hydraulic segmented disc brake with the brake disc and brake assembly at one end of the brake disc removed.

[0041] Figure 5 Schematic diagram of a brake assembly of an eddy current hydraulic segmented disc brake according to an embodiment of the present invention.

[0042] Figure 6 This is a partial schematic diagram of the electromagnetic induction coil after the coil cover of the brake assembly is removed.

[0043] Figure 7 It is a schematic diagram of an electromagnetic induction coil.

[0044] Description of reference numerals:

[0045] 100-brake frame, 101-base, 102-brake disc bracket, 103-hydraulic brake bracket, 200-brake disc, 201-disc body, 202-coating, 203-connecting flange, 204-key groove, 300-brake assembly, 301-electromagnetic induction brake part, 302-hydraulic brake part, 1031-bracket cover, 3011-coil cover, 3012-electromagnetic induction coil assembly, 3013-coil bracket, 3014-silicon steel sheet, 3015-excitation coil, 3021-brake block. DETAILED DESCRIPTION

[0046] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0047] Reference below Figures 1 to 7 , describing an eddy current hydraulic segmented disc brake according to an embodiment of the present invention.

[0048] Combine Figure 1 and Figure 4 As shown, the eddy current hydraulic segmented disc brake according to an embodiment of the present invention includes: a brake frame 100, a brake disc 200 and a brake assembly 300.

[0049] The brake frame 100 supports its components, such as the brake disc 200 and brake assembly 300, and is mounted on the ground. Internally, it contains hydraulic oil circuits and wiring ducts for powering the electromagnetic induction assembly. The brake frame 100 can be connected using anchor bolts, welding to embedded components, and other methods.

[0050] The brake disc 200 is rotatably mounted on the brake frame 100. One end of the brake disc 200 is connected to the roller of the belt conveyor. The roller is typically located at the front or rear end of the belt conveyor. The roller is driven by a speed reducer. When the roller stops, the belt conveyor also stops. The size of the brake disc 200 is selected according to actual needs and is not limited thereto.

[0051] The brake assembly 300 includes an electromagnetic induction brake component 301 and a hydraulic brake component 302, which are arranged at both ends of the brake disc 200. In other words, an electromagnetic induction brake component 301 and a hydraulic brake component 302 are provided on each end face of the brake disc 200. This avoids heat concentration and improves the stability of the braking effect. The number of electromagnetic induction brake components 301 and hydraulic brake components 302 is selected according to actual needs and is not limited to this. When energized, the electromagnetic induction brake component 301 generates an electromagnetic field, which causes the magnetic flux passing through the brake disc 200 to change, thereby generating eddy currents inside it. The magnetic field generated by the eddy currents then interacts with the electromagnetic field to generate an Ampere force opposite to the direction of rotation, thereby slowing down. The working principle of the hydraulic brake component 302 is to clamp the brake disc 200 with the brake pads to achieve frictional deceleration.

[0052] During braking, when the speed of the brake disc 200 exceeds a first preset speed, the electromagnetic induction brake element 301 applies electromagnetic eddy current braking to the brake disc 200. When the speed of the brake disc 200 is below the first preset speed but above a second preset speed, the electromagnetic induction brake element 301 and the hydraulic brake element 302 jointly apply braking to the brake disc 200. When the speed of the brake disc 200 is below the second preset speed, the hydraulic brake element 302 applies friction braking to the brake disc 200. The first and second preset speeds are set based on actual operating conditions and are not limited thereto. The first preset speed is higher than the second preset speed. For example, the first preset speed is 60 rpm and the second preset speed is 30 rpm. When the speed of the brake disc 200 is below the first preset speed but above the second preset speed, the electromagnetic-hydraulic system enters a transitional braking state. This transitional state is added to prevent shock from sudden mechanical braking and to achieve smooth braking. Furthermore, the hydraulic brake element 302 provides a parking brake function when the brake disc is at zero speed.

[0053] According to the eddy current hydraulic segmented disc brake of the embodiment of the present invention, electromagnetic induction brake parts and hydraulic brake parts are arranged at both ends of the brake disc, and eddy currents are generated in the brake disc by controlling the current. The magnetic field generated by the eddy current interacts with the electromagnetic field to decelerate the brake disc; after decelerating to a lower speed, the electromagnetic induction brake part and the hydraulic brake part brake at the same time; after decelerating to an even lower speed, hydraulic braking is used to achieve mechanical locking, thereby realizing segmented braking of the belt conveyor, reducing the sparks and wear generated during traditional friction braking, extending the service life of the brake disc and brake pads, and significantly improving the safety of mining belt conveyors in underground operations.

[0054] In some embodiments, the brake frame 100 includes a base 101, a brake disc support 102, and a hydraulic brake support 103. The base 101 primarily serves as a load-bearing structure. The bottom of the base 101 is made of rubber material for shock absorption and cushioning. The brake disc support 102 is mounted on the base 101 to support the brake disc 200 and enable its rotation. In one example, the brake disc support 102 is bolted to the base 101. A housing is located above the brake disc support 102, housing a bearing. The inner ring of the bearing houses a rotating shaft connected to the brake disc 200, enabling its rotation. The hydraulic brake support 103 is located at each radial end of the brake disc 200. The specific type of the hydraulic brake support 103 is determined based on practical needs and is not limited thereto. For example, the hydraulic brake support 103 is bolted to the base 101, concentric with the brake disc 200 and spaced apart from it. The hydraulic brake support 103 has an overall U-shaped cross-section. The brake frame 100 further includes a support cover 1031, which is detachably mounted on top of the hydraulic brake support 103 to cover the upper edge of the brake disc 200. The support cover 1031 is positioned above the U-shaped opening to prevent tools or personnel from intruding into the brake disc 200, thereby improving safety.

[0055] Combine Figure 4 and Figure 5 As shown, the hydraulic brake component 302 is detachably connected to the hydraulic brake support 103. The hydraulic brake component 302 includes a hydraulically controlled, retractable brake pad 3021, which is positioned opposite the brake disc 200. The specific type of brake pad 3021 is determined based on actual needs and is not limited thereto. In one example, the brake pad 3021 is made of a copper-based sintered material with excellent wear resistance and thermal conductivity. The hydraulic brake component 302 includes an oil cylinder, the cylinder push rod of which drives the axial movement of the brake pad 3021. The hydraulic brake component 302 includes a hydraulic circuit and a return spring, which is connected to the oil cylinder, and the return spring abuts the brake pad 3021. When the brake disc 200 is decelerated to a low speed by the electromagnetic induction brake component 301, the hydraulic oil within it flows back along the brake support 100 to the hydraulic pump station, where the return spring drives the brake pad 3021, ultimately achieving friction braking.

[0056] like Figure 2 As shown, in some embodiments, a brake disc 200 includes a disc body 201 , a coating 202 , a connecting flange 203 , and an elastic coupling.

[0057] Disk 201 is used to provide a friction surface. Disk 201 is made of steel. In one example, disk 201 is made of Q235 steel, which can generate concentrated eddy currents. Coating 202 covers both end surfaces of disk 201. The specific type of coating 202 is selected based on actual needs. For example, coating 202 is an Al2O3 coating with a thickness of 0.5-1.5 mm, which prevents eddy currents from dispersing on the surface of disk 201 and improves its surface wear resistance.

[0058] One end of the connecting flange 203 is connected to the disc body 201, for example, by bolts. The other end of the connecting flange 203 is provided with a flat key groove 204, which provides a mounting position for the flat key, thereby stabilizing torque transmission and decelerating the roller of the belt conveyor. In one example, the connecting flange 203 is forged from 42CrMo alloy steel, which has high strength and toughness. One end of the elastic coupling is connected to the other end of the connecting flange 203, and the other end of the elastic coupling is used to connect to the roller of the belt conveyor. The elastic coupling adopts a rubber-metal composite structure, which allows for micro-displacement in the axial and radial directions, and provides shock absorption and cushioning.

[0059] The brake disc 200 further comprises a shear pin, which is provided between the roller and the elastic coupling and disconnects the power transmission to the roller of the belt conveyor when the torque exceeds a set value, thereby achieving overload protection.

[0060] The connecting flange 203, the elastic coupling, the flat key and the shear pin constitute a connecting piece, which has a rigid connection and an elastic connection, ensuring that the braking torque is reliably transmitted to the roller.

[0061] Combine Figures 3 to 7 As shown, in some embodiments, the electromagnetic induction brake component 301 further includes an electromagnetic induction bracket and a plurality of electromagnetic induction coil assemblies 3012 .

[0062] The electromagnetic induction bracket comprises a tube body and multiple coil boxes arranged around the outer wall of the tube body. A tube support is provided at the bottom of the tube body. The tube support is bolted to the base 101. In one example, the tube body, coil boxes, and tube support are integrally formed to enhance structural strength. A coil support 3013 is provided within the coil box, providing a mounting location for the electromagnetic induction coil assembly 3012.

[0063] A plurality of electromagnetic induction coil assemblies 3012 are disposed in the coil box. The magnetic poles of the electromagnetic induction coil assemblies 3012 facing the brake disc 200 are alternately arranged. When the electromagnetic induction coil assemblies 3012 are energized, the direction of the magnetic field generated is perpendicular to the brake disc 200 .

[0064] The electromagnetic induction coil assembly 3012 includes a plurality of stacked silicon steel sheets 3014 and an excitation coil 3015. The specific type of silicon steel sheet is set according to actual needs, which is not limited. For example, the cross section of the silicon steel sheet is E-shaped, and the stacked silicon steel sheet has a center column and a side column, and the excitation coil 3015 is wound on the center column to improve the electromagnetic conversion efficiency. By energizing the excitation coil 3015 to generate an electromagnetic field, the energization direction of the adjacent excitation coil 3015 on the same side and the excitation coil 3015 on the opposite side of the brake disc 200 is opposite, so that a closed magnetic path is formed through the brake disc 200, which can effectively prevent the magnetic field of the excitation coil 3015 from leaking.

[0065] The electromagnetic induction brake 301 also includes a plurality of coil covers 3011, which are closed with the coil box. The coil cover 3011 is made of plastic, and a plurality of inclined heat dissipation holes are formed on the coil cover 3011, which plays a role in protecting the internal electromagnetic induction coil assembly 3012. For example, the coil cover 3011 is made of glass fiber reinforced polypropylene material, which can minimize magnetic field loss and ensure the sealing state of the coil box. When the brake disc rotates, the rotating air flow can be brought into the coil box to achieve passive refrigeration.

[0066] In combination with FIGS. 1-3, Figure 4 and Figure 6 As shown in some embodiments, at one end of the brake disc 200, the number of hydraulic brakes 302 is 2, which are located on the left and right sides of the brake disc 200, and the electromagnetic induction brake 301 has a plurality of electromagnetic induction coil assemblies 3012, which are evenly distributed on the upper and lower sides of the brake disc 200. The magnetic poles of the electromagnetic induction coil assembly 3012 towards the brake disc are alternately arranged, so that the magnetic lines uniformly penetrate the entire brake disc, forming a uniform electromagnetic field and a closed magnetic path to prevent magnetic field leakage. The electromagnetic induction coil assembly 3012 adopts a multi-point arrangement, which can not only reduce the load of each electromagnetic induction coil assembly 3012, but also disperse the heat generated during braking, effectively preventing heat concentration. In one example, the hydraulic brake 302 and the electromagnetic induction brake 301 at both ends of the brake disc 200 are symmetrically arranged to improve the braking efficiency.

[0067] In some embodiments, the eddy current hydraulic segmented disc brake also includes an electromagnetic control system, which is connected to the electromagnetic induction brake component 301 and is used to adjust the current size and direction of the electromagnetic induction brake component 301 to achieve control of the braking torque. In one example, the electromagnetic control system includes a main control module, a power drive module, and a detection and protection module. The main control module is responsible for the calculation of the braking force and the coordinated control of the system. It dynamically adjusts the current size of the induction coil according to the speed of the conveyor roller to achieve smooth adjustment of the braking force. For example, the main control module adopts PID control based on speed feedback to achieve flexible adjustment of the braking torque. The power drive module provides an adjustable power supply for the induction coil, and controls the magnetic field strength by changing the coil current size and direction, thereby adjusting the braking force. The detection and protection module monitors the brake disc speed and the temperature of the brake disc and the electromagnetic induction brake component 301. When the electromagnetic induction brake component 301 overheats and fails, it switches to hydraulic braking in time to prevent interruption of the braking force.

[0068] Through the electromagnetic control system, alternating current is passed through the excitation coil 3015, thereby generating an alternating magnetic field on both sides of the brake disc 200. When the brake disc 200 rotates to cut the alternating magnetic field generated by the coil, eddy currents are generated inside the disc body 201. The direction of the secondary magnetic field of the eddy current is opposite to the direction of the alternating magnetic field of the excitation coil 3015, generating an Ampere force opposite to the direction of rotation, thereby providing continuous braking force for the brake disc 200.

[0069] The present invention further provides a belt conveyor including the eddy current hydraulic segmented disc brake according to the above embodiment.

[0070] The eddy current hydraulic segmented disc brake and belt conveyor provided by the embodiments of the present invention have the following beneficial effects:

[0071] 1. Innovative electromagnetic braking design achieves efficient and safe braking. The magnetic poles of the electromagnetic coil assembly in the embodiment of the present invention are arranged in an alternating symmetrical pattern to form a uniform magnetic circuit on both sides of the brake disc. During high-speed operation, contactless deceleration is achieved through eddy current braking, avoiding the risk of sparks during high-speed braking of the brake disc. The electromagnetic control system can accurately control the braking torque, making the braking process flexible and adjustable. The excitation coil adopts a multi-point symmetrical distribution so that the electromagnetic field evenly covers the brake disc surface, thereby improving the braking efficiency; at the same time, a good thermal management effect is achieved through balanced magnetic field distribution. In addition, the coil cover installed on the coil box is provided with heat dissipation holes, which utilize the rotating airflow of the brake disc to achieve a passive cooling effect, solving the heat dissipation problem of traditional electromagnetic braking devices in closed wells.

[0072] 2. Automatically switching collaborative braking strategy. Through an innovative eddy current-hydraulic collaborative braking mechanism, embodiments of the present invention effectively address the industry challenge of insufficient braking force under low-speed conditions caused by pure eddy current braking. Electromagnetic braking is used at high speeds for wear-free deceleration, while hydraulic braking is switched to at low speeds to ensure stable braking performance across the full speed range. Hydraulic brakes offer absolute zero-speed locking capability, making them better suited to demanding operating conditions such as high-angle conveyors.

[0073] 3. Modular Design and Optimized Engineering Adaptability. The eddy current hydraulic segmented disc brake in this embodiment utilizes a split-body design, with the electromagnetic induction brake component and the hydraulic brake component assembled independently. This allows for quick assembly and disassembly, minimizing downtime. The brake disc utilizes a composite structure of a Q235 steel base and an Al2O3 coating, ensuring eddy current braking efficiency while also improving wear resistance.

[0074] It should be noted that, in the description of the present invention, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0075] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0076] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0077] In the description of the present invention, the terms "left", "right", "front", "rear", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0078] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present invention pertain.

[0079] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0080] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An eddy current hydraulic segmented disc brake, characterized in that: include: Brake rack (100); A brake disc (200) is rotatably mounted on the brake frame (100), one end of the brake disc (200) is used to connect to the roller of the belt conveyor, and the brake disc (200) includes a shear pin that disconnects power transmission with the roller of the belt conveyor when the torque exceeds a set value; A brake assembly (300), comprising an electromagnetic induction brake component (301) and a hydraulic brake component (302), is provided at both ends of the brake disc (200); The brake disc (200) comprises: a disc body (201), wherein the material of the disc body (201) is Q235 steel; a coating (202), wherein the coating (202) is an Al2O3 coating, covering both end surfaces of the disc body (201); When the brake is applied, when the rotation speed of the brake disc (200) is higher than a first preset rotation speed, the electromagnetic induction brake component (301) brakes the brake disc (200) with electromagnetic eddy current; when the rotation speed of the brake disc (200) is lower than the first preset rotation speed and higher than a second preset rotation speed, the electromagnetic induction brake component (301) and the hydraulic brake component (302) brake the brake disc (200) together; when the rotation speed of the brake disc (200) is lower than the second preset rotation speed, the hydraulic brake component (302) brakes the brake disc (200); The electromagnetic induction brake component (301) comprises: an electromagnetic induction bracket, comprising a tube body and a plurality of coil boxes arranged around the outer wall of the tube body; a plurality of electromagnetic induction coil assemblies (3012), arranged in the coil box, wherein the magnetic poles of the electromagnetic induction coil assemblies (3012) facing the brake disc (200) are alternately arranged, and the direction of the magnetic field generated by the electromagnetic induction coil assemblies (3012) after being energized is perpendicular to the brake disc (200); a plurality of coil covers (3011), wherein the coil covers (3011) are closed with the coil box, and the coil covers (3011) are made of plastic and have a plurality of oblique heat dissipation holes thereon, wherein the heat dissipation holes are strip-shaped holes; At one end of the brake disc (200), the number of the hydraulic brake components (302) is two, located on the left and right sides of the brake disc (200), and the plurality of electromagnetic induction coil assemblies (3012) are evenly distributed on the upper and lower sides of the brake disc (200), and the hydraulic brake components (302) and the electromagnetic induction brake components (301) at both ends of the brake disc (200) are symmetrically arranged; The electromagnetic induction coil assembly (3012) comprises a plurality of stacked silicon steel sheets (3014) and an excitation coil (3015), wherein the cross-section of the silicon steel sheets is E-shaped, and the stacked silicon steel sheets have a center column and side columns, and the excitation coil (3015) is wound around the center column.

2. The eddy current hydraulic segmented disc brake according to claim 1, characterized in that: The brake frame (100) comprises: Base (101); A brake disc support (102) is provided on the base (101) and is used to support the brake disc (200) to enable the brake disc (200) to rotate; The hydraulic brake supports (103) are arranged at both radial ends of the brake disc (200).

3. The eddy current hydraulic segmented disc brake according to claim 2, characterized in that: The brake frame (100) further comprises a bracket cover (1031) which is detachably arranged above the hydraulic brake bracket (103) and covers the upper edge of the brake disc (200).

4. The eddy current hydraulic segmented disc brake according to claim 2, characterized in that: The hydraulic brake component (302) is detachably connected to the hydraulic brake bracket (103), and the hydraulic brake component (302) has a hydraulically controlled retractable brake block (3021), and the brake block (3021) is arranged opposite to the brake disc (200).

5. The eddy current hydraulic segmented disc brake according to claim 1, characterized in that: The brake disc (200) further comprises: a connecting flange (203), one end of the connecting flange (203) being connected to the disk body (201); An elastic coupling, one end of the elastic coupling is connected to the other end of the connecting flange (203), and the other end of the elastic coupling is used to connect to the roller of the belt conveyor.

6. The eddy current hydraulic segmented disc brake according to any one of claims 1 to 5, characterized in that: It also includes an electromagnetic control system, which is connected to the electromagnetic induction brake component (301) and is used to adjust the current size and direction of the electromagnetic induction brake component (301) to achieve control of the braking torque.

7. A belt conveyor, characterized in that: The eddy current hydraulic segmented disc brake comprises the eddy current hydraulic segmented disc brake according to any one of claims 1 to 6.

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