Braking system of metallurgical mobile machine and metallurgical mobile machine

Abstract

The invention provides a braking system of a metallurgical mobile machine and the metallurgical mobile machine, and belongs to the technical field of metallurgical equipment, the braking system comprises a braking unit, the braking unit is movably arranged, the moving track of the braking unit has a braking position, and when the braking unit is located at the braking position, the braking unit brakes the metallurgical mobile machine; the hydraulic thruster acts on the brake unit, and the hydraulic thruster has a working state and a releasing state; the reset spring unit acts on the brake unit so as to drive the brake unit to perform reset motion towards the brake position; and the electronic control unit is used for controlling the hydraulic thruster, and the electronic control unit has a power-on state and a power-off state. The braking reliability and the parking position precision of the metallurgical mobile machinery are improved; and meanwhile, the metallurgical mobile machine can be quickly stopped in an emergency, and the occurrence probability of safety accidents such as car sliding, locomotive passing off the road, collision with other equipment and the like is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of metallurgical equipment technology, and in particular to a braking system for metallurgical mobile machinery and the metallurgical mobile machinery itself. Background Technology

[0002] For example, mobile metallurgical machinery such as traveling cranes, dry quenching cars, and locomotives are typically heavy and move at high speeds, requiring extremely high reliability of braking and precision in stopping position. Currently, braking systems for mobile metallurgical machinery mainly include hydraulic braking systems, electric braking systems, and other types. However, existing braking systems for mobile metallurgical machinery, due to their large inertia, are prone to slippage during braking, especially under heavy loads (e.g., a 220-ton load on the mobile machinery at a speed of 200 meters per minute). Furthermore, in emergencies (such as inverter failure, human error, or sudden power outages), they suffer from slow response speeds, insufficient braking reliability, and inadequate stopping position precision, which can easily lead to safety accidents such as the mobile machinery overshooting its designated area or colliding with other equipment. Summary of the Invention

[0003] This invention provides a braking system for metallurgical mobile machinery and the metallurgical mobile machinery itself, in order to solve the technical problems of slow response speed, insufficient braking reliability and insufficient stopping position accuracy of metallurgical mobile machinery in emergency situations.

[0004] This invention provides a braking system for metallurgical mobile machinery, the braking system comprising: A braking unit is mounted on a mobile machine. The movement trajectory of the braking unit has a braking position. When the braking unit is in the braking position, the braking unit brakes the metallurgical mobile machine. A hydraulic actuator acts on the braking unit. The hydraulic actuator has an operating state and a deactivated state. When the hydraulic actuator is in the operating state, it drives the braking unit to move outside the braking position and prevents the braking unit from moving towards the braking position. When the hydraulic actuator is in the deactivated state, it releases its obstruction of the braking unit. A reset spring unit acts on the braking unit to drive the braking unit to reset towards the braking position; An electronic control unit is provided for controlling the hydraulic actuator. The electronic control unit has an on-state and a off-state. When the electronic control unit is in the on-state, the hydraulic actuator is in the working state. When the electronic control unit is in the off-state, the hydraulic actuator is in the deactivated state.

[0005] In one embodiment of the present invention, a brake disc is further included for mounting on the metallurgical mobile machinery. The brake disc is coaxially connected to the wheel of the metallurgical mobile machinery. When the braking unit is in the braking position, the braking unit cooperates with the brake disc to brake and stop the metallurgical mobile machinery.

[0006] In one embodiment of the present invention, the braking unit is a brake shoe, and when the braking unit is in the braking position, the brake shoe is in contact with the disc surface of the brake disc.

[0007] In one embodiment of the present invention, there are at least two braking units, which are respectively disposed on both sides of the brake disc. When the braking unit is in the braking position, the two braking units clamp the brake disc.

[0008] In one embodiment of the present invention, the electronic control unit includes an electromagnetic coil, which controls the hydraulic actuator.

[0009] In one embodiment of the present invention, the braking system includes a brake bracket, the braking unit is disposed on the brake bracket, the return spring unit and the hydraulic actuator both act on the brake bracket and drive the braking unit through the brake bracket.

[0010] In one embodiment of the present invention, the brake bracket is rotatably configured, the rotation point of the brake bracket is located at the end of the brake bracket, the brake unit is disposed in the middle of the brake bracket, and the return spring unit and the hydraulic actuator both act on the other end of the brake bracket.

[0011] In one embodiment of the present invention, there are two brake brackets, and each of the two brake brackets is provided with a brake unit. The two brake brackets are linked together, and the brake brackets are configured to synchronously drive the corresponding brake unit to reach or leave the brake position.

[0012] In one embodiment of the present invention, the braking system includes a base, and the hydraulic actuator is disposed on the base.

[0013] The present invention also provides a metallurgical mobile machinery, including a vehicle body, wherein the vehicle body is provided with a braking system as described in any of the preceding claims.

[0014] The beneficial effects of this invention are as follows: The braking system and the metallurgical mobile machinery proposed in this invention control the hydraulic actuator through an electronic control unit. The electronic control unit has a fast response speed and high control precision, improving the braking and stopping position accuracy of metallurgical mobile machinery such as dry quenching cars, and solving the problem of low stopping position accuracy of metallurgical mobile machinery due to high speed and large running inertia. At the same time, in emergency situations such as frequency converter failure, human error, or sudden power failure, the electronic control unit is in a power-off state, and the metallurgical mobile machinery is also in a power-off state. The elastic potential energy of the reset spring unit is released, which can immediately drive the braking unit to reset to the braking position, enabling the metallurgical mobile machinery to stop quickly, effectively reducing the probability of safety accidents such as slippage, locomotive overshooting, and collision with other equipment. In addition, the closed-loop control of the electronic control unit is suitable for fully automatic control of metallurgical mobile machinery, realizing unmanned remote control of mobile machinery, which is conducive to improving production efficiency and automation. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0016] In the attached diagram: Figure 1 This is a schematic diagram of the structure of a braking system provided in one embodiment of the present invention; Figure 2 This is a partial structural schematic diagram of the braking system of a metallurgical mobile machinery provided in one embodiment of the present invention; Figure 3 This is a second schematic diagram of the braking system provided in one embodiment of the present invention; Figure 4 This is a second partial structural schematic diagram of the braking system of a metallurgical mobile machinery provided in one embodiment of the present invention.

[0017] The attached diagram is labeled as follows: 1. Braking unit; 2. Hydraulic actuator; 3. Return spring unit; 4. Brake disc; 5. Brake bracket; 6. Electronic control unit; 7. Base; 8. Vehicle body; 9. Wheel. Detailed Implementation

[0018] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0019] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0020] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the invention. However, it will be apparent to those skilled in the art that embodiments of the invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the invention.

[0021] like Figures 1-4 As shown, this embodiment provides a braking system for metallurgical mobile machinery. The braking system includes a braking unit 1, a hydraulic actuator 2, a return spring unit 3, and an electronic control unit 6.

[0022] The braking unit 1 is movable, and its movement trajectory includes a braking position. When the braking unit 1 is in the braking position, it brakes the metallurgical mobile machinery. Figure 2 and Figure 4 As shown, the brake disc 4 is mounted on the body 8 of the metallurgical mobile machinery, and the brake disc 4 is connected to the wheels 9 of the metallurgical mobile machinery. When the braking unit 1 is in the braking position, the braking unit 1 and the brake disc 4 cooperate to brake the metallurgical mobile machinery.

[0023] The electronic control unit 6 has advantages such as fast response speed and high control precision, which improves the braking precision of metallurgical mobile machinery such as dry quenching coke ovens under heavy load conditions and solves the problem of low stopping position accuracy caused by the high moving speed and large running inertia of metallurgical mobile machinery.

[0024] In this embodiment, the braking system also includes a brake disc 4. In this embodiment, the braking unit 1 is a brake shoe. When the braking unit 1 is in the braking position, the brake shoe contacts the disc surface of the brake disc 4. There are two braking units 1, which are respectively located on both sides of the brake disc 4. When the braking unit 1 is in the braking position, the two braking units 1 clamp the brake disc 4, thereby generating braking force on the metallurgical mobile machinery.

[0025] The hydraulic actuator 2 acts on the braking unit 1, and has an operating state and a deactivated state. When the hydraulic actuator 2 is in the operating state, it drives the braking unit 1 to move outside the braking position and prevents the braking unit 1 from moving towards the braking position; when the hydraulic actuator 2 is in the deactivated state, it releases the obstruction to the braking unit 1.

[0026] The return spring unit 3 acts on the braking unit 1 to drive it to return to the braking position. When the hydraulic actuator 2 is in the released state, the elastic force of the return spring unit 3 pushes the braking unit 1 to the braking position, causing it to contact the brake disc 4, thereby achieving the braking function. The return spring unit 3 releases its elastic potential energy rapidly, quickly pushing the braking unit 1 into contact with the brake disc 4. This fast response speed allows the metallurgical mobile machinery to stop quickly, effectively reducing the probability of accidents such as runaway, locomotive overshooting, and collisions with other equipment.

[0027] The electronic control unit 6 controls the hydraulic actuator 2. The electronic control unit 6 has an on-state and a off-state. When the electronic control unit 6 is energized, the hydraulic actuator 2 is in the working state; when the electronic control unit 6 is de-energized, the hydraulic actuator 2 is in the deactivated state. The electronic control unit 6 includes an electromagnetic coil, which controls the rapid switching of the working state of the hydraulic actuator 2.

[0028] like Figure 1 , Figure 3 and Figure 4 As shown, the braking system also includes a brake bracket 5, a braking unit 1 mounted on the brake bracket 5, a return spring unit 3 and a hydraulic actuator 2 both acting on the brake bracket 5, and driving the braking unit 1 through the brake bracket 5. The brake bracket 5 is rotatably mounted, with the rotation point 6 of the brake bracket 5 located in the middle of the brake bracket 5. The braking unit 1 is mounted on one end of the brake bracket 5, and the return spring unit 3 and the hydraulic actuator 2 both acting on the other end of the brake bracket 5. This lever-type design can effectively amplify or reduce the force, adjusting the braking torque.

[0029] There are two brake brackets 5, each equipped with a brake unit 1. The two brake brackets 5 are linked together, and are configured to synchronously drive the corresponding brake unit 1 to or from the braking position. This symmetrical design ensures the balance of braking torque and avoids instability caused by unilateral braking.

[0030] like Figure 1 and Figure 3 As shown, the braking system also includes a base 7, on which the hydraulic actuator 2 is mounted. The base 7 provides a stable support foundation for the entire braking system, ensuring its stability during operation.

[0031] When the electronic control unit 6 is energized, the electromagnetic coil is activated, controlling the hydraulic actuator 2 to operate. The hydraulic actuator 2 pushes the brake bracket 5 to rotate around the pivot point 6, moving the brake unit 1 away from the brake disc 4, and the metallurgical mobile machinery is in a non-braking state, allowing it to travel normally. When the electronic control unit 6 is de-energized (e.g., due to a power failure), the electromagnetic coil loses power, the hydraulic actuator 2 is deactivated, and the spring force of the return spring unit 3 pushes the brake bracket 5 to rotate in the opposite direction around the pivot point 6, causing the brake unit 1 to contact the brake disc 4, thus braking the metallurgical mobile machinery to a stop and ensuring safety. This power-off braking design ensures that the braking system can still operate reliably in emergency situations such as power failures, improving the safety performance of the metallurgical mobile machinery.

[0032] like Figures 1-4 As shown, this embodiment also provides a metallurgical mobile machinery, including a vehicle body 8, on which a braking system as described is provided.

[0033] like Figure 2 and Figure 4 As shown, the brake disc 4 is mounted on the body 8 of the metallurgical mobile machinery, and the brake disc 4 is connected to the wheels 9 of the metallurgical mobile machinery. The body 8, as the main structure of the metallurgical mobile machinery, provides the foundation for installing and supporting the various components of the braking system. The wheels 9 are connected to the body 8 and are used to support the entire metallurgical mobile machinery and realize its movement function.

[0034] In this embodiment, the base 7 is located between the two sets of wheels 9. Two sets of braking units 1, hydraulic actuators 2 and return spring units 3 are provided on the same base 7 to brake the two sets of wheels 9 respectively, thereby improving the braking effect and simplifying the structure of the braking system.

[0035] In this metallurgical mobile machinery, the braking system is arranged with consideration for the compactness of the overall structure and ease of operation. The connection between the brake disc 4 and the wheel 9 ensures that the braking force can be directly applied to the wheel, improving braking efficiency. The structural design of the vehicle body 8 allows for the stable installation of all components of the braking system and ensures they remain in good working condition during the operation of the metallurgical mobile machinery. The aforementioned braking system provides safe and reliable braking performance, especially in emergency situations such as power failures, ensuring the system continues to operate reliably and allowing for a rapid and safe stop of the machinery, thus helping to prevent accidents.

[0036] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A braking system for metallurgical mobile machinery, characterized in that, include: A braking unit is provided, wherein the braking unit is movably configured, and the movement trajectory of the braking unit has a braking position. When the braking unit is located at the braking position, the braking unit brakes the metallurgical mobile machinery. A hydraulic actuator acts on the braking unit. The hydraulic actuator has an operating state and a deactivated state. When the hydraulic actuator is in the operating state, it drives the braking unit to move outside the braking position and prevents the braking unit from moving towards the braking position. When the hydraulic actuator is in the deactivated state, it releases its obstruction of the braking unit. A reset spring unit acts on the braking unit to drive the braking unit to reset towards the braking position; An electronic control unit is provided for controlling the hydraulic actuator. The electronic control unit has an on-state and a off-state. When the electronic control unit is in the on-state, the hydraulic actuator is in the working state. When the electronic control unit is in the off-state, the hydraulic actuator is in the deactivated state.

2. The braking system of the metallurgical mobile machinery according to claim 1, characterized in that, It also includes a brake disc for mounting on the metallurgical mobile machinery, the brake disc being connected to the wheels of the metallurgical mobile machinery, and when the braking unit is in the braking position, the braking unit cooperates with the brake disc to brake the metallurgical mobile machinery.

3. The braking system of the metallurgical mobile machinery according to claim 2, characterized in that, The braking unit is a brake shoe, and when the braking unit is in the braking position, the brake shoe is in contact with the surface of the brake disc.

4. The braking system of the metallurgical mobile machinery according to claim 2, characterized in that, The braking unit is at least two, and the two braking units are respectively disposed on both sides of the brake disc. When the braking unit is in the braking position, the two braking units clamp the brake disc.

5. The braking system of the metallurgical mobile machinery according to claim 1, characterized in that, The electronic control unit includes an electromagnetic coil that controls the hydraulic actuator.

6. The braking system of the metallurgical mobile machinery according to claim 1, characterized in that, The braking system includes a brake bracket, the braking unit is mounted on the brake bracket, the return spring unit and the hydraulic actuator both act on the brake bracket and drive the braking unit through the brake bracket.

7. The braking system of the metallurgical mobile machinery according to claim 6, characterized in that, The brake bracket is rotatably mounted, with the rotation point of the brake bracket located at one end of the brake bracket. The brake unit is located in the middle of the brake bracket, and the return spring unit and the hydraulic actuator both act on the other end of the brake bracket.

8. The braking system of the metallurgical mobile machinery according to claim 6, characterized in that, There are two brake brackets, and each of the two brake brackets is provided with a brake unit. The two brake brackets are linked together, and the brake brackets are configured to synchronously drive the corresponding brake unit to reach or leave the braking position.

9. The braking system of the metallurgical mobile machinery according to claim 6, characterized in that, The braking system includes a base, and the hydraulic actuator is mounted on the base.

10. A metallurgical mobile machinery, characterized in that, Includes a vehicle body, wherein the vehicle body is provided with a braking system as described in any one of claims 1 to 9.

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