Brake disc sand box cooling and conveying device

Abstract

The brake disc sand box cooling and conveying device comprises a cooling channel, a conveying track and an exhaust fan, the exhaust fan comprises a fan body and a fan switch, a temperature measuring cylinder is arranged in the cooling channel, a piston is slidably connected in the temperature measuring cylinder, the space between the piston and the bottom wall of the temperature measuring cylinder is filled with mercury, the piston is fixedly connected with a linkage rod, and the linkage rod is fixedly connected with the conveying track. When the temperature of the sand box is reduced to the set temperature, the air temperature of the corresponding area is measured as the standard air temperature, the real-time air temperature of the corresponding area in the cooling channel is sensed through mercury in the temperature measuring cylinder, the real-time air temperature is compared with the standard air temperature, when the real-time air temperature is larger than the standard air temperature, the linkage block is separated from the fan switch, and the fan switch is switched off. The fan body operates; when the real-time air temperature is smaller than the standard air temperature, the linkage block abuts against the fan switch, and the fan body stops running. And after the temperature of the sand box is reduced to a set value, a subsequent fan in the conveying direction does not need to be started. The cooling device has the effect of reducing the energy loss of the brake disc blank casting in the cooling process.

Description

Technical Field

[0001] This application relates to the field of brake disc manufacturing technology and equipment, and in particular to a brake disc sand box cooling and conveying device. Background Technology

[0002] The production process of brake discs begins with casting and cooling. High-quality molten gray cast iron is poured steadily into a sand mold pre-set within a sand box. The molten iron solidifies and cools within the mold according to a predetermined procedure, forming a rough casting. This rough casting determines the basic shape and internal density of the brake disc blank. The rough casting is removed through processes such as unpacking and sand removal, and then undergoes rough and fine machining. Key areas such as the friction surfaces and mounting surfaces are machined and ground using a lathe. Finally, after dynamic balancing, coding, rust prevention treatment, and packaging, the qualified brake disc is ready for shipment.

[0003] The cooling process is set between casting and unpacking. After casting, the sand box is transported to the unpacking area by a trolley set on the rails. In order to improve production efficiency, a cooling channel and exhaust fans are usually set up during the transportation process to gradually cool the blank casting in the sand box. In order to ensure that the blank casting can be cooled and formed during the transportation process, a redundant number of exhaust fans are usually set up.

[0004] Regarding the aforementioned technologies, during the cooling process of the brake disc blank casting, redundant exhaust fans remain on, increasing energy consumption and hindering production cost control. Summary of the Invention

[0005] In order to reduce energy loss during the cooling process of brake disc blank castings, this application provides a brake disc sand box cooling conveying device.

[0006] This application provides a brake disc sand box cooling and conveying device, which adopts the following technical solution: A brake disc sandbox cooling and conveying device includes a cooling channel, a conveying track, and an exhaust fan. The conveying track is located within the cooling channel, and the exhaust fan is arranged along the length of the cooling channel. An air inlet is provided in the cooling channel and connected to an exhaust pipe. The exhaust fan includes a fan body for blowing air and a fan switch for controlling the fan body's operation. A temperature measuring cylinder, corresponding to each fan, is located within the cooling channel. A piston is slidably connected inside the temperature measuring cylinder, with its side sealed to the inner wall of the cylinder. Mercury is filled between the piston and the bottom wall of the temperature measuring cylinder. A connecting rod is fixedly connected to the piston end away from the mercury, extending along the length of the temperature measuring cylinder. A connecting block is provided on the connecting rod. The fan switch is located on the moving path of the connecting block. When the air temperature within the cooling channel is higher than the standard air temperature for sandbox cooling, the connecting block disengages from the fan switch, and the fan body operates. When the air temperature within the cooling channel is lower than the standard air temperature for sandbox cooling, the connecting block abuts against the fan switch, and the fan body stops operating.

[0007] By adopting the above technical solution, when the sand box temperature reaches the set temperature, the air temperature in the corresponding area is measured as the standard air temperature. The real-time air temperature in the corresponding area of ​​the cooling channel is sensed by mercury in the temperature measuring cylinder. The real-time air temperature is compared with the standard air temperature. When the real-time air temperature is higher than the standard air temperature, the exhaust fan in the corresponding area continues to operate. When the real-time air temperature is lower than the standard air temperature, meaning the sand box temperature has dropped to the design value, the exhaust fan in the corresponding area stops operating. After the sand box temperature drops to the design value, subsequent fans in its conveying direction do not need to be started, which helps reduce energy loss during the cooling process of the brake disc blank casting.

[0008] Optionally, the exhaust fan also includes a power knob for adjusting the operating power of the fan body. The power knob is coaxially fixedly connected to a power gear, and a power rack is fixedly connected to a connecting rod. The length direction of the power rack is parallel to the length direction of the connecting rod. The power gear is located on the moving path of the power rack. When the power rack meshes with the power gear and moves away from the mercury, the power of the fan body increases; when the power rack meshes with the power gear and moves closer to the mercury, the power of the fan body decreases.

[0009] By adopting the above technical solution, the real-time temperature of the corresponding area is linked to the power knob by setting a power gear and a power rack. When the real-time temperature of the corresponding area increases, the power of the fan increases, and when the real-time temperature of the corresponding area decreases, the power of the fan decreases. This linkage between the real-time temperature of the corresponding area and the power of the fan helps to dynamically control the power of the fan.

[0010] Optionally, the linkage block includes a fixed block and a movable block for contacting the fan switch. The fixed block is fixedly connected to the linkage rod, and a buffer elastic element is connected between the fixed block and the movable block.

[0011] By adopting the above technical solution, when the temperature in the cooling channel is lower than the standard temperature when the sand box is cooled, the linkage block abuts against the fan switch, and the fan body stops running. If the temperature in the cooling channel continues to drop at this time, the movable block will continue to move with the linkage rod. The buffer elastic element can prevent the movable block from continuing to move after touching the fan switch, thus avoiding damage to the fan switch.

[0012] Optionally, the fixed block and the movable block are slidably connected, with one end of the buffer elastic element located inside the fixed block and the other end extending into the movable block.

[0013] By adopting the above technical solution, the buffer elastic element, which usually uses components such as springs, is prone to rust or even blockage in the complex environment of the cooling channel. The fixing block wraps around the buffer elastic element, which can protect the buffer elastic element and extend its service life and replacement cycle.

[0014] Optionally, the cooling channel is equipped with a nozzle for spraying water into the sand box, the nozzle is connected to a water supply pipe for supplying water to the nozzle, and the water supply pipe is equipped with a valve for controlling the water flow rate in the water supply pipe.

[0015] By adopting the above technical solution and adding a spray system by setting up nozzles, it can supplement the air cooling method during periods of high temperature and high production, which helps to further improve cooling efficiency.

[0016] Optionally, the valve is equipped with a flow control knob for controlling the valve flow rate. A flow control knob is coaxially fixedly connected to a flow control gear, and a flow control rack is fixedly connected to a connecting rod. The length direction of the flow control rack is parallel to the length direction of the connecting rod. The flow control gear is positioned on the movement path of the flow control rack. When the flow control rack is located between the flow control gear and the mercury and is disengaged from the flow control gear, the valve is closed. When the flow control rack engages with the flow control gear and moves away from the mercury, the flow rate in the water supply pipe increases. When the flow control rack engages with the flow control gear and moves closer to the mercury, the flow rate in the water supply pipe decreases.

[0017] By adopting the above technical solution, the on / off state and water volume of the spray system are linked to the real-time temperature of the corresponding area, and the opening and closing of the valves and the water supply flow are dynamically controlled, which helps to enhance the cooling effect and save water.

[0018] In summary, this application includes at least one of the following beneficial technical effects: When the sand box cooling is completed, the air temperature of the corresponding area is measured as the standard air temperature. The real-time air temperature of the corresponding area in the cooling channel is sensed by the mercury in the temperature measuring cylinder. After comparing the real-time air temperature with the standard air temperature, if the real-time air temperature is greater than the standard air temperature, it means that the sand box in the corresponding area has not yet completed cooling, and the exhaust fan in the corresponding area continues to run. If the real-time air temperature is less than the standard air temperature, it means that the sand box temperature has dropped to the design value or there is no sand box in the corresponding area, and the exhaust fan in the corresponding area stops running. The subsequent exhaust fans in its conveying direction do not need to be started. The opening and closing of the exhaust fan can be dynamically controlled according to the sand box cooling process and the conveying process, which helps to reduce the energy loss of the brake disc blank casting during the cooling process. By setting power gears and power racks to link the real-time temperature of the corresponding area with the power knob, the power of the fan increases when the real-time temperature of the corresponding area increases, and the power of the fan decreases when the real-time temperature of the corresponding area decreases. This linkage between the real-time temperature of the corresponding area and the power of the fan helps to dynamically control the power of the fan. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0020] Figure 2 This is a schematic diagram of the internal structure of an embodiment of this application.

[0021] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle.

[0022] Figure 4 This is an exploded view of an embodiment of this application.

[0023] Figure 5 This is a schematic diagram illustrating the internal structure of the linkage block in an embodiment of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Cooling channel; 11. Air inlet; 12. Exhaust pipe; 2. Conveying track; 3. Exhaust fan; 31. Fan body; 32. Fan switch; 33. Power knob; 331. Power gear; 4. Temperature measuring cylinder; 41. Piston; 42. Mercury; 5. Linking rod; 51. Linking block; 511. Fixed block; 512. Moving block; 513. Buffer elastic element; 52. Power rack; 53. Flow rack; 6. Nozzle; 7. Water supply pipe; 8. Valve; 81. Flow knob; 811. Flow gear. Detailed Implementation

[0025] The present application will be further described in detail below with reference to all the accompanying drawings.

[0026] This application discloses a brake disc sand box cooling and conveying device.

[0027] Reference Figure 1 and Figure 2 A brake disc sand box cooling and conveying device includes a cooling channel 1, a conveying track 2, and exhaust fans 3. The cooling channel 1 is a hollow rectangular parallelepiped, used to isolate the cast sand box from the outside environment, preventing workers from being injured by high temperatures and molten iron splashes. It is constructed of building bricks. The conveying track 2 is laid inside the cooling channel 1 and is adapted to a trolley that transports the sand box. The trolley carries the sand box through the cooling channel 1 via the conveying track 2. Several exhaust fans 3 are installed at the top of the cooling channel 1, evenly distributed along the length of the cooling channel 1. Several exhaust pipes 12, matched with the exhaust fans 3, connect to the top of the cooling channel 1. The exhaust pipes 12 connect the interior of the cooling channel 1 to the outside of the workshop, allowing the air exhausted by the exhaust fans 3 to be promptly discharged outdoors and to remove heat. Several air inlets 11 are provided on the side walls of the cooling channel 1 to replenish air into the cooling channel 1, forming an air circulation system in conjunction with the exhaust fans 3. A dust filter is installed at the air inlet 11 to prevent large pieces of sand and dust from entering the cooling channel 1. In this embodiment, by monitoring the air temperature at each exhaust fan 3 location, the opening and closing of the corresponding exhaust fan 3 is automatically determined, preventing the exhaust fan 3 from running idle when not in use, which helps to reduce energy loss of the brake disc blank casting during the cooling process.

[0028] Reference Figure 1 and Figure 2 The exhaust fan 3 includes a fan body 31 and a fan switch 32. The fan body 31 is located at the end of the exhaust pipe 12 and is used to exhaust hot air from the cooling channel 1 into the exhaust pipe 12. The fan switch 32 is used to control the start and stop of the corresponding fan body 31. When the button of the fan switch 32 is pressed, the fan body 31 is turned off; when the button of the fan switch 32 is released, the fan body 31 is turned on. Several temperature measuring cylinders 4 are installed in the cooling channel 1, and each temperature measuring cylinder 4 is arranged in a corresponding manner to the fan. The temperature measuring cylinder 4 is a cylindrical structure with one side open and is made of a thermally conductive material, which allows it to sensitively sense the external temperature and its changes. A piston 41 is slidably connected inside the temperature measuring cylinder 4. Mercury 42 is filled between the piston 41 and the bottom wall of the temperature measuring cylinder 4. The side of the piston 41 is sealed to the inner wall of the temperature measuring cylinder 4 to ensure that the mercury 42 does not leak to the outside of the temperature measuring cylinder 4. When the temperature in the cooling channel 1 decreases, the mercury 42 contracts, causing the piston 41 to move closer to the bottom of the temperature measuring cylinder 4. When the temperature in the cooling channel 1 increases, the mercury 42 expands due to heat, driving the piston 41 to move away from the bottom of the temperature measuring cylinder 4.

[0029] Reference Figure 1 and Figure 2A connecting rod 5 is fixedly connected to the end of piston 41 away from mercury 42. The connecting rod 5 is set along the length of temperature measuring cylinder 4 and can move with the movement of piston 41. A connecting block 51 is set on the connecting rod 5, and the button of fan switch 32 is set on the movement path of connecting block 51. The standard temperature is set when the sand box temperature in cooling channel 1 just drops to a temperature suitable for opening. When the temperature in the corresponding area of ​​cooling channel 1 is higher than the standard temperature, meaning the sand box temperature at this location has not yet dropped to a temperature suitable for the next process, the linkage block 51 and the fan switch 32 are disengaged, and the fan body 31 is in operation. As the sand box temperature decreases, the mercury 42 in the nearby temperature measuring cylinder 4 gradually contracts, and the piston 41 drives the linkage rod 5 to move, which in turn drives the linkage block 51 to move closer to the fan switch 32. When the temperature in the corresponding area of ​​cooling channel 1 is lower than the standard temperature, meaning the sand box temperature at this location has dropped to a temperature suitable for the next process, the linkage block 51 and the fan switch 32 abut against each other, the fan body 31 stops running, and no more power is consumed. Subsequent fans in the sand box conveying direction also do not need to be started, which helps to reduce energy loss of the brake disc blank casting during the cooling process.

[0030] Reference Figure 1 and Figure 2 The exhaust fan 3 also includes a power knob 33 for adjusting the operating power of the fan body 31. A power gear 331 is coaxially fixedly connected to the power knob 33, and a power rack 52 is fixedly connected to the connecting rod 5. The length direction of the power rack 52 is parallel to the length direction of the connecting rod 5, and the power gear 331 is positioned along the movement path of the power rack 52. When the temperature in the corresponding area of ​​the cooling channel 1 rises, the mercury 42 expands due to heat, driving the piston 41 to move away from the bottom of the temperature measuring cylinder 4, causing the power rack 52 to move closer to the power gear 331 and gradually mesh with it, causing the power gear 331 to rotate, thus increasing the power of the fan body 31. When the temperature in the corresponding area of ​​the cooling channel 1 decreases, the mercury 42 contracts, driving the piston 41 to move closer to the bottom of the temperature measuring cylinder 4, causing the power rack 52 to move in the same direction, and the power rack 52 to rotate the power gear 331, thus decreasing the power of the fan body 31. Linking the real-time temperature of the corresponding area with the power of the fan body 31 helps to dynamically adjust the power of the fan body 31, making the cooling capacity control in the corresponding area more linear.

[0031] Reference Figure 1 and Figure 2When the temperature inside the cooling channel 1 is lower than the standard temperature, the linkage block 51 abuts against the fan switch 32, and the fan body 31 stops operating. If the temperature inside the cooling channel 1 continues to drop at this time, the movable block 512 will continue to move with the linkage rod 5, which may damage the fan switch 32. In this embodiment, the linkage block 51 includes a fixed block 511 and a movable block 512. The fixed block 511 is fixedly connected to the linkage rod 5, and a buffer elastic element 513 is connected between the fixed block 511 and the movable block 512. In this embodiment, the buffer elastic element 513 is a spring. The buffer elastic element 513 can stop the movable block 512 from moving after it touches the fan switch 32, thus preventing damage to the fan switch 32.

[0032] Reference Figure 1 and Figure 2 The buffer elastic element 513 uses a spring, which is prone to rusting or even blockage in the complex environment of the cooling channel 1. The fixed block 511 and the movable block 512 are slidably connected. One end of the buffer elastic element 513 is located in the fixed block 511 and the other end extends into the movable block 512. The buffer elastic element 513 is wrapped and set to protect it, which helps to extend the service life and replacement cycle of the buffer elastic element 513.

[0033] Reference Figure 1 and Figure 2 During periods of high production volume, to improve production efficiency, the trolley carrying the sand boxes needs to quickly pass through the cooling channel 1. To support this increased production capacity, the cooling channel 1 requires higher cooling efficiency. In this embodiment, the cooling channel 1 is equipped with spray nozzles 6 for spraying water onto the sand boxes. The spray nozzles 6 are connected to a water supply pipe 7, the other end of which is connected to a water source to supply water to the spray nozzles 6. A valve 8 is installed on the water supply pipe 7 to control the water flow rate. Compared to an air-cooled system, the addition of a spray system supplements the air-cooling method during periods of high temperature and high production volume, further improving cooling efficiency and production capacity.

[0034] Reference Figure 1 and Figure 2A flow control knob 81 is installed on the valve 8 to control the flow rate of the valve 8. Rotating the flow control knob 81 can control the flow rate of the valve 8, and thus control the flow rate of the water supply pipe 7. A flow control gear 811 is coaxially fixedly connected to the flow control knob 81. A flow control rack 53 is fixedly connected to the connecting rod 5. The length direction of the flow control rack 53 is parallel to the length direction of the connecting rod 5. The flow control gear 811 is set on the movement path of the flow control rack 53. When the temperature in the corresponding area of ​​cooling channel 1 is low, the flow rack 53 is positioned between the flow gear 811 and the mercury 42, and the flow rack 53 and the flow gear 811 are disengaged, with valve 8 in the closed state. When the temperature in the corresponding area of ​​cooling channel 1 rises, the mercury 42 expands due to heat, and the flow rack 53 moves closer to the flow gear 811. When the temperature in the corresponding area of ​​cooling channel 1 rises to the point where the spray head 6 needs to intervene to assist in cooling, the flow rack 53 engages with the flow gear 811, and as the temperature continues to rise, the flow rack 53 continues to move away from the mercury 42, the flow gear 811 continues to rotate, and the flow rate in the water supply pipe 7 increases. When the temperature in the corresponding area of ​​cooling channel 1 decreases, the flow rack 53 moves closer to the mercury 42, and the flow rate in the water supply pipe 7 decreases until the flow rack 53 and the flow gear 811 separate, and valve 8 closes. Linking the on / off state and water volume of the spray system with the real-time temperature of the corresponding area, and dynamically controlling the opening and closing of valve 8 and the water supply flow, helps to enhance the cooling effect and save water.

[0035] The implementation principle of the brake disc sand box cooling and conveying device in this application embodiment is as follows: Through an automated control mechanism combining temperature sensing and mechanical linkage, intelligent adjustment of the exhaust fan 3 and the spray system during the brake disc sand box cooling process is achieved. The device has multiple temperature measuring cylinders 4 installed in the cooling channel 1, filled with mercury 42 and connected to a piston 41 and a connecting rod 5. The thermal expansion and contraction of mercury 42 drives the connecting rod 5 to move. When the temperature in the cooling channel 1 is higher than the standard temperature, the connecting rod 5 drives the connecting block 51 to disengage from the fan switch 32, allowing the exhaust fan 3 to continue running to accelerate heat dissipation. When the temperature drops below the standard temperature, the connecting block 51 triggers the fan switch 32 to shut down, avoiding energy waste. Simultaneously, through the meshing transmission of the connecting rod 5 with the power gear 331 and the flow gear 811, the power of the fan body 31 and the water spray flow rate are linearly adjusted according to temperature changes. This improves cooling efficiency during high-temperature or high-capacity periods and automatically reduces frequency or shuts down at low temperatures, achieving the dual goals of energy saving and efficient cooling. The entire system has a simple structure and a sensitive response, requiring no external power control, which effectively reduces operating costs and energy consumption.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A brake disc sand box cooling and conveying device, comprising a cooling channel (1), a conveying track (2), and an exhaust fan (3), wherein the conveying track (2) is disposed within the cooling channel (1), and the exhaust fan (3) is arranged along the length of the cooling channel (1), wherein an air inlet (11) is provided on the cooling channel (1) and an exhaust pipe (12) is connected thereto, characterized in that: The exhaust fan (3) includes a fan body (31) for blowing air and a fan switch (32) for controlling the opening and closing of the fan body (31). A temperature measuring cylinder (4) corresponding to the exhaust fan (3) is provided in the cooling channel (1). A piston (41) is slidably connected inside the temperature measuring cylinder (4). The side of the piston (41) is sealed to the inner wall of the temperature measuring cylinder (4). Mercury (42) is filled between the piston (41) and the bottom wall of the temperature measuring cylinder (4). A wire is fixedly connected to the end of the piston (41) away from the mercury (42). A linkage rod (5) is set along the length of the cylinder (4), and a linkage block (51) is set on the linkage rod (5). The fan switch (32) is set on the moving path of the linkage block (51). When the temperature in the cooling channel (1) is higher than the standard temperature when the sand box is cooled, the linkage block (51) is disengaged from the fan switch (32), and the fan body (31) runs. When the temperature in the cooling channel (1) is lower than the standard temperature when the sand box is cooled, the linkage block (51) abuts against the fan switch (32), and the fan body (31) stops running.

2. The brake disc sand box cooling and conveying device according to claim 1, characterized in that: The exhaust fan (3) also includes a power knob (33) for adjusting the operating power of the fan body (31). The power knob (33) is coaxially fixedly connected to a power gear (331). A power rack (52) is fixedly connected to the linkage rod (5). The length direction of the power rack (52) is parallel to the length direction of the linkage rod (5). The power gear (331) is set on the moving path of the power rack (52). When the power rack (52) meshes with the power gear (331) and the power rack (52) moves away from the mercury (42), the power of the fan body (31) increases. When the power rack (52) meshes with the power gear (331) and the power rack (52) moves towards the mercury (42), the power of the fan body (31) decreases.

3. The brake disc sand box cooling and conveying device according to claim 1, characterized in that: The linkage block (51) includes a fixed block (511) and a movable block (512) for contacting the fan switch (32). The fixed block (511) is fixedly connected to the linkage rod (5), and a buffer elastic element (513) is connected between the fixed block (511) and the movable block (512).

4. The brake disc sand box cooling and conveying device according to claim 3, characterized in that: The fixed block (511) and the movable block (512) are slidably connected. One end of the buffer elastic element (513) is located inside the fixed block (511), and the other end extends into the movable block (512).

5. The brake disc sand box cooling and conveying device according to claim 1, characterized in that: The cooling channel (1) is equipped with a nozzle (6) for spraying water into the sand box. The nozzle (6) is connected to a water supply pipe (7) for supplying water to the nozzle (6). A valve (8) is installed on the water supply pipe (7) for controlling the water flow rate in the water supply pipe (7).

6. The brake disc sand box cooling and conveying device according to claim 5, characterized in that: The valve (8) is provided with a flow knob (81) for controlling the flow rate of the valve (8). A flow gear (811) is coaxially fixedly connected to the flow knob (81). A flow rack (53) is fixedly connected to the connecting rod (5). The length direction of the flow rack (53) is parallel to the length direction of the connecting rod (5). The flow gear (811) is set on the moving path of the flow rack (53). When the flow rack (53) is located between the flow gear (811) and the mercury ( When the flow rack (53) and flow gear (811) are disengaged, the valve (8) is closed; when the flow rack (53) and flow gear (811) are engaged and the flow rack (53) moves away from the mercury (42), the flow rate in the water supply pipe (7) increases; when the flow rack (53) and flow gear (811) are engaged and the flow rack (53) moves towards the mercury (42), the flow rate in the water supply pipe (7) decreases.

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