Preparation equipment for high-carbon-equivalent low-alloying wear-resistant brake disc

Abstract

The invention relates to high-carbon-equivalent low-alloying wear-resistant brake disc preparation equipment, and relates to the technical field of high-carbon-equivalent low-alloying wear-resistant brake disc preparation equipment.The high-carbon-equivalent low-alloying wear-resistant brake disc preparation equipment comprises a smelting furnace and a heat treatment furnace, the smelting furnace comprises a furnace body and a lower baffle, and the lower baffle horizontally penetrates through the lower end of the furnace body to be slidably connected with the furnace body; an electromagnetic stirring device and a discharging pipe are arranged on the lower end face of the lower baffle, the discharging pipe is located on the outer side of the furnace body, a support is fixedly arranged at the lower end of the furnace body, a hydraulic cylinder is fixedly arranged on the support, and the telescopic end of the hydraulic cylinder is fixedly connected with the end, away from the discharging pipe, of the lower baffle; the end, away from the conveying belt, of the bearing plate is detachably connected with a sand box used for containing a sand core mold, the conveying belt is used for driving the sand box to move from the smelting furnace to the heat treatment furnace, and the sliding direction of the lower baffle is parallel to the conveying direction of the conveying belt. The method has the effects of reducing manual intervention and improving the production automation degree.

Description

Technical Field

[0001] This application relates to the technical field of equipment for preparing high carbon equivalent low alloy wear-resistant brake discs, and particularly to an equipment for preparing high carbon equivalent low alloy wear-resistant brake discs. Background Art

[0002] The equipment for preparing brake discs plays an important role in the automotive manufacturing industry. Especially for high-performance vehicles, high-quality brake discs can significantly improve the safety and reliability of the braking system.

[0003] The manufacturing process of brake discs usually involves multiple steps such as melting, casting, cooling, and heat treatment. Each step needs to be precisely controlled to ensure the stable performance of the final product. During melting, manual use of a special stirring shovel is required to stir the molten liquid in the furnace; during casting, manual flipping of the furnace is needed to pour the molten liquid into the sand core mold; after the molten liquid in the mold cools to form the brake disc matrix, the sand core mold is then peeled off from the brake disc matrix, and subsequently, heat treatment, machining, and coating processes are carried out.

[0004] The manual stirring method is inefficient, labor-intensive, and it is difficult to achieve uniform stirring; manually flipping the furnace poses safety hazards and causes waste; the process of peeling off the sand core mold usually also requires manual use of tools to break it to separate it from the brake disc matrix; at the same time, manual intervention is required for movement between each process. Summary of the Invention

[0005] In order to reduce manual intervention and improve the degree of production automation, this application provides an equipment for preparing high carbon equivalent low alloy wear-resistant brake discs.

[0006] This application provides an equipment for preparing high carbon equivalent low alloy wear-resistant brake discs, adopting the following technical solution: An equipment for preparing high carbon equivalent low alloy wear-resistant brake discs includes a melting furnace and a heat treatment furnace. The melting furnace includes a furnace body and a lower baffle. The furnace body has openings at both the top and bottom. The lower baffle horizontally passes through the lower end of the furnace body and is slidably connected to the furnace body. An electromagnetic stirring device is provided on the lower end face of the lower baffle. An outlet pipe is provided on the lower end face of the lower baffle, and the outlet pipe is located outside the furnace body. A support is fixedly provided at the lower end of the furnace body, and a hydraulic cylinder is fixedly provided on the support. The telescopic end of the hydraulic cylinder is fixedly connected to the end of the lower baffle away from the outlet pipe. A conveyor belt is provided below the outlet pipe. A plurality of bearing plates are fixedly provided on the conveyor belt along the circumferential direction at equal intervals. One end of the bearing plate away from the conveyor belt is detachably connected to a sand box for placing the sand core mold. The conveyor belt is used to drive the sand box to move from the melting furnace towards the heat treatment furnace. The sliding direction of the lower baffle is parallel to the conveying direction of the conveyor belt.

[0007] By adopting the above technical solutions, after the melting in the melting furnace is completed, the liquid metal can flow out from the discharge pipe to the sand core mold through the sliding lower baffle, which simplifies the operation processes of feeding and discharging, and improves the production efficiency; the electromagnetic stirring device can generate electromagnetic force in the molten metal, ensuring uniform melt composition and consistent temperature, and accelerating the melting process, reducing manual operation, and improving safety and product quality; the telescopic movement of the hydraulic cylinder drives the lower baffle to slide, realizing automatic control, and further enhancing the production efficiency and safety; a number of bearing plates are uniformly fixed along the circumferential direction of the conveyor belt, and each bearing plate can place the sand core mold. The conveyor belt can drive the sand box to move from the melting furnace towards the heat treatment furnace, realizing a continuous production line layout, reducing manual intervention in the intermediate links, and improving the automation degree of the entire system; the brake disc substrate after casting is conveyed into the cooling box for rapid cooling, ensuring the mechanical properties of the brake disc; the design of the first brush roller and the second brush roller can effectively remove the sand core mold coated on the outside of the brake disc substrate. Thus, the automation degree and efficiency of production are improved, and the quality and safety of the product are improved.

[0008] Optionally, a cooling box is provided between the melting furnace and the heat treatment furnace. Below one end of the conveyor belt close to the heat treatment furnace, a first brush roller and a second brush roller with opposite rotation directions are provided. The first brush roller and the second brush roller are arranged horizontally in the cooling box. Below the first brush roller and the second brush roller, a transfer device is provided. Above the conveyor belt, a hanging conveyor line is provided. The hanging conveyor line sequentially passes through the cooling box and the heat treatment box. The transfer device is used to transfer the brake disc that falls between the first brush roller and the second brush roller onto the hanging conveyor line.

[0009] By adopting the above technical solutions, the setting of the cooling box enables the brake disc substrate to be rapidly cooled before heat treatment, improving the production efficiency; the reverse rotation design of the first brush roller and the second brush roller can effectively peel off the sand core mold, ensuring the surface quality of the brake disc substrate; the introduction of the transfer device realizes automatic transfer, reduces manual intervention, and improves the overall automation degree of the production line; the design of the hanging conveyor line enables the brake disc substrate to smoothly enter the heat treatment furnace for subsequent processing, further enhancing the continuity and stability of the process flow.

[0010] Optionally, the transfer device includes a horizontal slide plate and a vertical slide plate. The vertical slide plate is located above the horizontal slide plate. The horizontal slide plate is slidably connected to the cooling box in the horizontal direction, and the vertical slide plate is slidably connected to the horizontal slide plate in the vertical direction. The upper end surface of the vertical slide plate is detachably connected with a transfer box. The transfer box has an open upper end. On both sides of the transfer box perpendicular to the axis of the first brush roller, there are symmetric inclined surfaces. The hanging conveyor line is uniformly provided with a number of hooks along the circumferential direction.

[0011] By adopting the above technical solutions, the combined design of the horizontal slide plate and the vertical slide plate enables the transfer box to move flexibly in the horizontal and vertical directions, ensuring that the brake disc substrate can accurately fall into the transfer box from between the first brush roll and the second brush roll; the design of the upper opening of the transfer box facilitates the loading and unloading of the brake disc substrate; the vertical slide plate drives the transfer box to move upward, making the upper end of the transfer box flush with the lower end of the first brush roll, which is convenient for the brake disc substrate to smoothly fall into the transfer box; the driving motor rotates the lead screw to drive the transfer box to move away from the conveyor belt, enabling the hook to pass through the central through hole of the brake disc substrate when moving on the suspension conveyor line, and then lifting and suspending the brake disc substrate and sending it from the cooling box to the heat treatment furnace for subsequent processing. This design not only improves production efficiency and reduces manual intervention, but also ensures the stability and reliability during the preparation process of the brake disc substrate.

[0012] Optionally, a sand blocking frame is provided in the cooling box. The first brush roll and the second brush roll are both located within the sand blocking frame and are rotatably connected to the sand blocking frame. The lower end surface of the sand blocking frame is located above the transfer box. A first guide plate is provided between the first brush roll and the conveyor belt, and a second guide plate is provided above the second brush roll. One end of the conveyor belt located within the cooling box is between the first guide plate and the second guide plate. Both the first guide plate and the second guide plate are inclined, and the distance between the upper ends of the first guide plate and the second guide plate is greater than the distance between their lower ends. Both the first guide plate and the second guide plate are fixedly connected to the sand blocking frame.

[0013] By adopting the above technical solutions, the setting of the sand blocking frame effectively prevents the splashes generated when the sand core mold falls in the cooling box from polluting the internal environment of the cooling box, and at the same time ensures the safety of the brake disc substrate; the first brush roll and the second brush roll are rotatably connected to the sand blocking frame, ensuring the stability of the brush rolls during operation and improving the sand removal efficiency; the design of the first guide plate and the second guide plate enables the sand core mold to smoothly slide onto the first brush roll and the second brush roll under the action of gravity, further accelerating the sand removal process; the inclined design of the guide plates also reduces the resistance suffered by the sand core mold during the sliding process, enhancing the fluency and reliability of the entire system.

[0014] Optionally, a plurality of air jet nozzles are fixedly provided on both the first guide plate and the second guide plate, and the plurality of air jet nozzles are evenly arranged along the axis direction of the first brush roll.

[0015] By adopting the above technical solutions, the setting of the air jet nozzles can effectively accelerate the speed of the sand core mold falling off from the brake disc substrate, improving production efficiency; at the same time, the air outlet ends of the air jet nozzles are flush with the inclined surfaces of the first guide plate and the second guide plate, ensuring that the sand core mold will not be hindered during the downward sliding process, further ensuring the smoothness of the demolding process.

[0016] Optionally, a waste sand box is slidably connected inside the cooling box. The waste sand box is located below the sand retaining frame and slides synchronously and in the same direction as the horizontal slide plate. A support platform is provided at the bottom of the cooling box to support the waste sand box and the transfer box.

[0017] By adopting the above technical solution, the waste sand can be effectively collected when the first brush roller and the second brush roller are working, reducing the possibility of waste sand scattering inside the cooling box and maintaining the cleanliness inside the cooling box. At the same time, the design of the synchronous and co-directional sliding of the waste sand box and the horizontal slide plate ensures that the waste sand box is always in a proper position during the process of transporting the brake disc base, facilitating the timely collection of the waste sand falling from the sand retaining frame and improving the working efficiency and reliability of the equipment.

[0018] Optionally, the sand retaining frame includes a first baffle, a second baffle, two side plates and two sliders. Both ends of the first guide plate and the second guide plate along the axis direction of the first brush roller are respectively fixedly connected to the two side plates. Both ends of the first baffle along the axis direction of the first brush roller are respectively fixedly connected to the two side plates. The first baffle is located on the side of the first brush roller away from the second brush roller. Both ends of the second baffle along the axis direction of the second brush roller are respectively fixedly connected to the two sliders. The second baffle is located on the side of the second brush roller away from the first brush roller. Through grooves are formed on the side plates, and the sliders are slidably connected to the side plates in the horizontal direction. Both ends of the first brush roller along the axis direction are respectively rotatably connected to the two side plates. Both ends of the second brush roller along the axis direction are respectively rotatably connected to the two sliders. A first motor fixedly connected to the side plate is provided at one end of the first brush roller, and a second motor fixedly connected to the slider is provided at one end of the second brush roller.

[0019] By adopting the above technical solution, the design of the sand retaining frame makes the first brush roller and the second brush roller more stable during operation, reducing the influence of the external environment on the rotation of the brush rollers. The position design of the first baffle, the second baffle and the two side plates effectively prevents the sand grains from splashing and protects the cleanliness around the equipment. The sliding connection mode of the sliders and the side plates enables the second baffle and the second brush roller to adjust their positions as needed. The first motor and the second motor are respectively fixed on the side plate and the slider, ensuring the power transmission efficiency and stability of the brush rollers and improving the sand removal effect.

[0020] Optionally, a support plate is provided inside the conveyor belt. The upper end surface of the support plate abuts against the inner wall of the conveyor belt. First brackets connected to the rotating shafts and a plurality of second brackets fixedly connected to the support plate are provided on both sides of the conveyor belt along the conveying direction. The first bracket located inside the cooling box is fixedly connected to the upper end of the cooling box.

[0021] By adopting the above technical solution, the design of the support plate enables the conveyor belt to maintain stability and rigidity during long-term operation, effectively preventing deformation and bending caused by heavy loads or long-term use, ensuring that the sand box can move smoothly on the conveyor belt, and avoiding the problem that the discharge pipe cannot be aligned with the pouring port of the core mold; the structural design of the first support and the second support enhances the stability of the entire system.

[0022] Optionally, clamping blocks are fixedly arranged on both sides of the sand box parallel to the conveying direction of the conveyor belt. The lower end surface of the clamping block abuts against the upper end surface of the bearing plate. A limiting block abuts against the upper end surface of the clamping block. A first chamfer is arranged on one side of the upper end surface of the limiting block close to the sand box. Limiting grooves for restricting the horizontal movement of the clamping block relative to the conveyor belt are fixedly arranged on both sides of the bearing plate parallel to the conveying direction of the conveyor belt. The clamping block is slidably connected to the limiting groove in the vertical direction, and the limiting block passes through the limiting groove horizontally and is slidably connected to the limiting groove. An elastic member is fixedly arranged between one end of the limiting block away from the sand box and one end of the limiting groove away from the sand box.

[0023] By adopting the above technical solution, the cooperative design of the clamping block and the limiting groove makes the sand box unable to move randomly in the horizontal direction, ensuring the stability of the sand box during transportation; the abutment of the limiting block and the clamping block and the design of the elastic member not only allow the sand box to be installed in place smoothly, but also prevent it from accidentally coming off during transportation; the design of the first chamfer makes it smoother for robots or other automated equipment to place the sand box, reducing the operation difficulty and time cost. The sand box can be firmly fixed during transportation, avoiding position deviation caused by vibration or collision, improving the installation accuracy and reliability of the sand box, reducing the failure rate during the production process, and improving the efficiency and safety of the entire preparation system.

[0024] Optionally, a slot extending along the conveying direction of the conveyor belt is formed on one side of the limiting block away from the conveyor belt. An insertion block is fixedly arranged on one side of the second support closest to the cooling box and close to the conveyor belt. A second chamfer is arranged between one side of the insertion block close to the cooling box and one side of the insertion block close to the second support.

[0025] By adopting the above technical solution, when the sand box comes out of the cooling box, the conveyor belt drives the limiting block to move towards the insertion block. The side of the slot abuts against the second chamfer surface of the insertion block, and then the insertion block is inserted into the slot, driving the limiting block to slide away from the sand box, so that the limiting block no longer abuts against the clamping block, so that the clamping block and the sand box can slide freely in the vertical direction in the limiting groove, and finally the sand box is smoothly separated from the bearing plate, completing the process of automatic blanking. This design not only improves production efficiency and reduces manual intervention, but also ensures the safety and stability of the sand box.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. After the melting is completed in the melting furnace, the liquid metal can flow out from the discharge pipe to the sand core mold by sliding the lower baffle, which simplifies the operation process of feeding and discharging, and improves the production efficiency; the electromagnetic stirring device can generate electromagnetic force in the molten metal to ensure uniform melt composition and consistent temperature, and accelerate the melting process, reducing manual operation and improving safety and product quality; the telescopic movement of the hydraulic cylinder drives the lower baffle to slide, realizing automatic control and further enhancing the production efficiency and safety; a number of bearing plates are evenly fixed along the circumferential direction of the conveyor belt, and each bearing plate can place the sand core mold. The conveyor belt can drive the sand box to move from the melting furnace to the heat treatment furnace direction, realizing a continuous production line layout, reducing manual intervention in the intermediate links, and improving the automation degree of the whole system; the brake disc substrate after casting is conveyed into the cooling box for rapid cooling, ensuring the mechanical properties of the brake disc; the design of the first brush roller and the second brush roller can effectively remove the sand core mold wrapped outside the brake disc substrate; thus improving the automation degree and efficiency of production, and improving the quality and safety of products; 2. The setting of the cooling box enables the brake disc substrate to be rapidly cooled before heat treatment, improving production efficiency; the reverse rotation design of the first brush roller and the second brush roller can effectively peel off the sand core mold, ensuring the surface quality of the brake disc substrate; the introduction of the transfer device realizes automatic transfer, reduces manual intervention, and improves the overall automation degree of the production line; the design of the hanging conveyor line enables the brake disc substrate to smoothly enter the heat treatment furnace for subsequent processing, further enhancing the continuity and stability of the process flow; 3. The combined design of the horizontal slide plate and the vertical slide plate enables the transfer box to move flexibly in the horizontal and vertical directions, ensuring that the brake disc substrate can accurately fall from between the first brush roller and the second brush roller into the transfer box; the design of the upper opening of the transfer box facilitates the putting in and taking out of the brake disc substrate; the vertical slide plate drives the transfer box to move upward, making the upper end of the transfer box flush with the lower end of the first brush roller, facilitating the brake disc substrate to smoothly fall into the transfer box; the driving motor rotates the lead screw to drive the transfer box to move away from the conveyor belt, enabling the hook to pass through the central through hole of the brake disc substrate when moving on the hanging conveyor line, and then hanging the brake disc substrate and sending it from the cooling box into the heat treatment furnace for subsequent processing. This design not only improves production efficiency and reduces manual intervention, but also ensures the stability and reliability in the preparation process of the brake disc substrate. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of a preparation device for a high carbon equivalent low alloy wear-resistant brake disc.

[0028] Figure 2 It is a schematic diagram of the structure of the melting furnace and the sand box.

[0029] Figure 3It is a schematic cross-sectional view of a sand box and a bearing plate.

[0030] Figure 4 It is a schematic structural view of a limiting groove and a plug block.

[0031] Figure 5 It is Figure 4 an enlarged schematic view of part A in

[0032] Figure 6 It is a schematic internal structure view of a cooling box.

[0033] Figure 7 It is a schematic structural view of a sand retaining frame.

[0034] Figure 8 It is a schematic structural view of a transfer device.

[0035] Explanation of reference numerals: 1, melting furnace; 11, furnace body; 12, lower baffle; 121, electromagnetic stirring device; 122, discharge pipe; 13, support; 14, hydraulic cylinder; 2, cooling box; 21, first brush roller; 22, first motor; 23, second brush roller; 24, second motor; 25, support table; 3, heat treatment furnace; 4, conveyor belt; 41, bearing plate; 42, sand box; 421, clamping block; 43, limiting groove; 44, limiting block; 441, first chamfer; 442, slot; 45, elastic member; 46, first support; 47, support plate; 48, second support; 49, plug block; 491, second chamfer; 5, transfer device; 51, horizontal slide plate; 52, vertical slide plate; 53, transfer box; 54, waste sand box; 6, sand retaining frame; 61, first guide plate; 62, second guide plate; 63, air jet head; 64, first baffle; 65, second baffle; 66, side plate; 661, through groove; 67, slider; 7, suspension conveyor line; 71, hook. Detailed implementation manners

[0036] The following further elaborates on the present application in conjunction with all the attached drawings.

[0037] The embodiment of the present application discloses a preparation device for a high carbon equivalent low alloy wear-resistant brake disc.

[0038] Referring to Figure 1 , a preparation device for a high carbon equivalent low alloy wear-resistant brake disc includes a melting furnace 1, a cooling box 2, and a heat treatment furnace arranged in sequence along the horizontal direction. The melting furnace 1 is used to melt raw materials into liquid metal, and the raw materials can be scrap steel, alloy elements, etc. The cooling box 2 is used to accelerate the cooling process of the brake disc matrix after casting and heat treatment, and the heat treatment furnace is used to perform heat treatment on the brake disc matrix to improve the mechanical properties of the brake disc.

[0039] Referring to Figure 1 and Figure 2, the melting furnace 1 includes a furnace body 11 and a lower baffle 12. The furnace body 11 is made of high-temperature resistant materials, such as refractory bricks or ceramic materials, to withstand the high-temperature environment. The lower baffle 12 has good corrosion resistance and durability. The furnace body 11 is open at both the top and bottom. The raw materials enter through the upper opening of the furnace body 11. The lower baffle 12 horizontally passes through the lower end of the furnace body 11 and is slidably connected to the furnace body 11. An outlet pipe 122 is provided on the lower end face of the lower baffle 12. The outlet pipe 122 is located outside the furnace body 11. The outlet pipe 122 is made of high-temperature resistant materials, such as heat-resistant steel, to ensure that it will not deform or be damaged in the high-temperature environment. After the raw materials are melted, the lower baffle 12 is slid, and the outlet pipe 122 communicates with the furnace body 11. The melted liquid metal flows out from the outlet pipe 122 into the sand core mold. A support 13 is fixedly provided at the lower end of the furnace body 11. A hydraulic cylinder 14 is fixedly provided on the support 13. The telescopic end of the hydraulic cylinder 14 is fixedly connected to one end of the lower baffle 12 away from the outlet pipe 122. The lower baffle 12 is driven to slide by the telescoping of the hydraulic cylinder 14.

[0040] Referring to Figure 2 , an electromagnetic stirring device 121 is provided on the lower end face of the lower baffle 12. The electromagnetic stirring device 121 stirs the molten metal by generating an electromagnetic force in the molten metal to ensure uniform melt composition, consistent temperature, and accelerate the melting process. At the same time, it reduces manual operation and improves safety.

[0041] Referring to Figure 1 and Figure 2 , a conveyor belt 4 is provided below the outlet pipe 122. The conveyor belt 4 is used to drive the sand box 42 to move from the melting furnace 1 towards the heat treatment furnace 3. The melting furnace 1 is located between the two ends of the conveyor belt 4 along the conveying direction. The conveyor belt 4 can adopt a chain drive method. The chain material is high-strength alloy steel, and the sprocket material is cast iron. The entire drive system operates smoothly and reliably. The bearing plate 41 is made of aluminum alloy material, which is light and strong and can effectively support the weight of the sand box 42. A number of bearing plates 41 are uniformly and fixedly provided along the circumferential direction of the conveyor belt 4. One end of the bearing plate 41 away from the conveyor belt 4 is detachably connected to a sand box 42 for placing the sand core mold. A sand box 42 equipped with the sand core mold is placed at one end of the conveyor belt 4. As the conveyor belt 4 transports it to below the melting furnace 1, the melted metal liquid is poured from the outlet pipe 122 into the sand core mold to achieve automatic pouring and reduce manual intervention. One end of the conveyor belt 4 close to the heat heating furnace is located in the cooling box 2. After pouring is completed, the conveyor belt 4 transports it into the cooling box 2 for rapid cooling. The sliding direction of the lower baffle 12 is parallel to the conveying direction of the conveyor belt 4. When the lower baffle 12 blocks the lower end of the furnace body 11, both the outlet pipe 122 and the sand box 42 below move towards the cooling box 2. When the lower baffle 12 stops sliding, the sand box 42 continues to move forward, and the outlet pipe 122 is still within the range above the sand box 42, so that the remaining metal liquid in the outlet pipe 122 completely falls into the sand box 42 below, avoiding the metal liquid in the outlet pipe 122 from falling onto the conveyor belt 4 and causing damage to the conveyor belt 4.

[0042] Referring to Figure 1 , a support plate 47 is provided inside the conveyor belt 4. The upper end surface of the support plate 47 abuts against the inner wall of the conveyor belt 4. The support plate 47 is used to horizontally move the sand box 42 conveyed above the conveyor belt 4, so as to avoid pressing down and bending the conveyor belt 4, resulting in the misalignment between the discharge pipe 122 and the pouring port of the sand core mold. On both sides of the conveyor belt 4 along the conveying direction, a first bracket 46 connected to the rotating shaft and a second bracket 48 fixedly connected to the support plate 47 are provided. The first bracket 46 located inside the cooling box 2 is fixedly connected to the upper end of the cooling box 2, and the lower ends of the other first brackets 46 and the second bracket 48 are fixedly connected to the ground.

[0043] Referring to Figure 3 , on both sides of the sand box 42 parallel to the conveying direction of the conveyor belt 4, clamping blocks 421 are fixedly provided. The lower end surface of the clamping block 421 abuts against the upper end surface of the bearing plate 41. The upper end surface of the clamping block 421 abuts against a limiting block 44. On the side of the upper end surface of the limiting block 44 close to the sand box 42, a first chamfer 441 is provided. On both sides of the bearing plate 41 parallel to the conveying direction of the conveyor belt 4, limiting grooves 43 for restricting the horizontal movement of the clamping block 421 relative to the conveyor belt 4 are fixedly provided. The clamping block 421 is slidably connected to the limiting groove 43 in the vertical direction, and the limiting block 44 passes horizontally through the limiting groove 43 and is slidably connected to the limiting groove 43. An elastic member 45 is fixedly provided between the end of the limiting block 44 away from the sand box 42 and the end of the limiting groove 43 away from the sand box 42. During the process of placing the sand box 42 on the bearing plate 41 by using a conveying device such as a robot, first, the clamping block 421 abuts against the inclined surface of the first chamfer 441 of the limiting block 44, pushing the limiting block 44 to move away from the sand box 42. Then, the clamping block 421 falls into the limiting groove 43. The limiting groove 43 prevents the sand box 42 from sliding relative to the conveyor belt 4 in the horizontal direction. When the lower end surface of the sand box 42 abuts against the upper end surface of the bearing plate 41, the lower end surface of the clamping block 421 abuts against the upper end surface of the bearing plate 41, and the upper end surface of the clamping block 421 is not higher than the lower end surface of the limiting block 44. The limiting block 44 slides above the clamping block 421 under the elastic force of the elastic member 45, preventing the sand box 42 from disengaging from the conveyor belt 4 upward. Through these technical means, the sand box 42 is fixed during the automatic feeding process.

[0044] Referring to Figure 4 and Figure 5, a slot 442 extending in the conveying direction of the conveyor belt 4 is formed on the side of the limiting block 44 away from the conveyor belt 4. An insertion block 49 is fixedly provided on the side of the second bracket 48 farthest from the cooling box 2 close to the conveyor belt 4. A second chamfer 491 is provided between the side of the insertion block 49 close to the cooling box 2 and the side of the insertion block 49 close to the second bracket 48. When the sand box 42 comes out of the cooling box 2, it is located below the conveyor belt 4. The conveyor belt 4 drives the limiting block 44 to move towards the insertion block 49. The side of the slot 442 abuts against the inclined surface of the second chamfer 491 of the insertion block 49. Subsequently, the insertion block 49 is inserted into the slot 442, driving the limiting block 44 to slide away from the sand box 42, so that the limiting block 44 does not abut against the clamping block 421. The clamping block 421 and the sand box 42 can slide vertically in the limiting groove 43, so that the sand box 42 is separated from the bearing plate 41, and the automatic blanking of the sand box 42 is completed.

[0045] Refer to Figure 6 , below one end of the conveyor belt 4 located in the cooling box 2, a first brush roller 21 and a second brush roller 23 with opposite rotation directions are provided. The first brush roller 21 and the second brush roller 23 are arranged horizontally in the cooling box 2. A first guide plate 61 is provided between the first brush roller 21 and the conveyor belt 4. The lower end of the sand box 42 conveyed by the lower end surface of the conveyor belt 4 is higher than the upper end of the first guide plate 61. A second guide plate 62 is provided above the second brush roller 23. The upper end of the second guide plate 62 is not lower than the upper end surface of the conveyor belt 4. One end of the conveyor belt 4 located in the cooling box 2 is located between the first guide plate 61 and the second guide plate 62. Both the first guide plate 61 and the second guide plate 62 are inclined. The distance between the upper ends of the first guide plate 61 and the second guide plate 62 is greater than the distance between their lower ends. When the conveyor belt 4 conveys the sand core mold that has been cast in the sand box 42, when the sand box 42 rotates around the rotating shaft of the conveyor belt 4, the sand core mold in the sand box 42 can fall between the first guide plate 61 and the second guide plate 62 or slide down along the inclined surfaces of the first guide plate 61 and the second guide plate 62 and then fall onto the first brush roller 21 and the second brush roller 23. The first brush roller 21 rotates counterclockwise towards the melting furnace 1, and the second brush roller 23 rotates clockwise to strip the sand core mold wrapped around the brake disc base body.

[0046] Refer to Figure 7, both the first material guide plate 61 and the second material guide plate 62 are fixedly provided with a plurality of air jet nozzles 63. The plurality of air jet nozzles 63 are evenly arranged along the axial direction of the first brush roller 21. The air jet nozzles 63 are inclined downward to jet air on the core mold on the first brush roller 21 and the second brush roller 23, accelerating the speed at which the core mold falls off the brake disc base. The air outlet ends of the air jet nozzles 63 are flush with the inclined surfaces of the first material guide plate 61 and the second material guide respectively, so that there is no obstruction when the core mold falling on the first material guide plate 61 and the second material guide slides downward. The spray pipe uses compressed air as the power source and is connected to the air compressor through a pipeline. The jet pressure of the air jet nozzles 63 can effectively blow away the molding sand adhering to the surface of the brake disc base. The distribution density of the air jet nozzles 63 is relatively high to ensure the coverage area. The angle of the air jet nozzles 63 can be finely adjusted according to actual needs to achieve the best sand cleaning effect.

[0047] Refer to Figure 7 , a sand retaining frame 6 is fixedly provided in the cooling box 2. The sand retaining frame 6 includes a first baffle 64, a second baffle 65, two side plates 66 and two sliders 67. Both ends of the first material guide plate 61 and the second material guide plate 62 along the axial direction of the first brush roller 21 are respectively fixedly connected to the two side plates 66. Both ends of the first baffle 64 along the axial direction of the first brush roller 21 are respectively fixedly connected to the two side plates 66. The first baffle 64 is located on the side of the first brush roller 21 away from the second brush roller 23. Both ends of the second baffle 65 along the axial direction of the second brush roller 23 are respectively fixedly connected to the two sliders 67. The second baffle 65 is located on the side of the second brush roller 23 away from the first brush roller 21. A through groove 661 is provided on the side plate 66, and the slider 67 is slidably connected to the side plate 66 in the through groove 661 in the horizontal direction. A cylinder can be provided on the side of the second baffle 65 away from the first baffle 64 to drive the second baffle 65 and the slider 67 to slide.

[0048] Refer to Figure 7 , both the first brush roller 21 and the second brush roller 23 are located inside the sand retaining frame 6. Both ends of the first brush roller 21 along the axial direction are respectively rotatably connected to the two side plates 66. Both ends of the second brush roller 23 along the axial direction are respectively rotatably connected to the two sliders 67. One end of the first brush roller 21 is provided with a first motor 22 fixedly connected to the side plate 66, and one end of the second brush roller 23 is provided with a second motor 24 fixedly connected to the slider 67.

[0049] Refer to Figure 6 and Figure 8, a transfer device 5 is provided below the first brush roller 21 and the second brush roller 23. The transfer device 5 includes a horizontal slide plate 51 and a vertical slide plate 52. The upper end surface of the vertical slide plate 52 is detachably connected with a transfer box 53 by bolts, and the transfer box 53 can be replaced to adapt to brake disc bases of different sizes and specifications. The lower end surface of the sand blocking frame 6 is located above the transfer box 53. The transfer box 53 has an upper opening and is used for transferring the brake disc bases. A lead screw and a guide rod are provided at the bottom of the cooling box 2. The lower end of the horizontal slide plate 51 is provided with a bearing seat and a threaded seat. The bearing seat is slidably connected to the guide rod, and the threaded seat is threadedly connected to the lead screw. A driving motor is installed at the end of the lead screw. By driving the lead screw to rotate, the horizontal slide plate 51 is driven to be slidably connected to the cooling box 2 in the horizontal direction. At the same time, a waste sand box 54 that slides synchronously and in the same direction as the horizontal slide plate 51 is also slidably connected to the lead screw and the guide rod. The waste sand box 54 is located below the first brush roller 21 and the second brush roller 23. The upper end of the waste sand box 54 is open, and the lower end surface of the sand blocking frame 6 is located above the waste sand box 54 for collecting the waste sand falling from the sand blocking frame 6. A support platform 25 is provided at the bottom of the cooling box 2 for supporting the waste sand box 54 and the transfer box 53 to reduce the pressure of the two on the lead screw and the guide rod.

[0050] Refer to Figure 6 and Figure 8 , the vertical slide plate 52 is located above the horizontal slide plate 51. Two slide rails are provided on both sides of the upper end surface of the horizontal slide plate 51. A lead screw is provided in one of the slide rails, and a guide rod is provided in the other slide rail. The vertical slide plate 52 is threadedly connected to the lead screw and is slidably connected to the guide rod in the vertical direction.

[0051] Refer to Figure 1 , a suspension conveyor line 7 is provided above the conveyor belt 4. A plurality of hooks 71 are evenly arranged along the circumferential direction of the suspension conveyor line 7. The suspension conveyor line 7 sequentially passes through the cooling box 2 and the heat treatment box.

[0052] When the brake disc substrate is subjected to surface sand removal operation, the waste sand box 54 is located below the sand retaining frame 6. After the sand removal is completed, the transfer box 53 and the waste sand box 54 move synchronously, so that the transfer box 53 is located below the sand retaining frame 6. At this time, the first brush roller 21 rotates clockwise toward the smelting furnace 1, and the second brush roller 23 rotates counterclockwise, so that the brake disc substrate stands up and is sandwiched between the first brush roller 21 and the second brush roller 23. The vertical slide 52 drives the transfer box 53 to move upward, so that the upper end of the transfer box 53 is flush with the lower end of the first brush roller 21, so that the brake disc substrate can accurately fall into the transfer box 53. The sliding second baffle 65 drives the second brush roller 23 to slide in a direction away from the first brush roller 21, and the brake disc substrate falls from the first brush roller 21 and the second brush roller 23 into the transfer box 53. The two sides of the interior of the transfer box 53 are symmetrical inclined surfaces, so that the brake disc substrate is located at the center of the transfer box 53. Then the vertical slide 52 drives the transfer box 53 to move downward, so that the brake disc substrate is separated from the sand retaining frame 6 area. The driving motor rotates the screw rod to drive the transfer box 53 to move away from the conveyor belt 4, and the waste sand box 54 moves to the bottom of the sand retaining frame 6. The vertical slide 52 drives the transfer box 53 to move upward until the hook 71 can pass through the central through hole of the brake disc substrate when moving on the suspension conveyor line 7. Then the transfer box 53 moves downward, the hook 71 hangs the brake disc substrate, and then drives the brake disc substrate from the cooling box 2 into the hot heating furnace for heat treatment. After the heat treatment is completed, it returns to the cooling box 2 for cooling again. After cooling, it is output from the cooling box 2 and the brake disc substrate is removed from the hook 71. The removed brake disc substrate can then be machined, such as drilling, grinding and milling, and the surface can also be sprayed.

[0053] The implementation principle of the high carbon equivalent low alloy wear-resistant brake disc preparation equipment of the present application embodiment is as follows: after smelting in the smelting furnace 1 is completed, the liquid metal can be discharged from the discharge pipe 122 to the sand core mold by sliding the lower baffle 12, which simplifies the operation process of feeding and discharging, and improves production efficiency; the electromagnetic stirring device 121 can generate electromagnetic force in the molten metal to ensure uniform composition and temperature of the melt, accelerate the melting process, reduce manual operation, and improve safety and product quality; the extension and contraction of the hydraulic cylinder 14 drives the lower baffle 12 to slide, realizing automatic control, and further The production efficiency and safety are improved; the conveyor belt 4 is evenly fixed with a number of bearing plates 41 along the circumference, each bearing plate 41 can be placed on the sand core mold, and the conveyor belt 4 can drive the sand box 42 to move from the smelting furnace 1 to the heat treatment furnace 3, realizing the continuous production line layout, reducing the manual intervention in the intermediate links, and improving the automation of the entire system; the brake disc matrix after casting will be transported to the cooling box 2 for rapid cooling, ensuring the mechanical properties of the brake disc; the design of the first brush roller 21 and the second brush roller 23 can effectively remove the sand core mold coated on the outside of the brake disc matrix. Thereby improving the automation and efficiency of production and improving the quality and safety of the product.

[0054] The above are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A high carbon equivalent low alloy wear-resistant brake disc preparation device, comprising a smelting furnace (1) and a heat treatment furnace (3), characterized in that: The smelting furnace (1) comprises a furnace body (11) and a lower baffle (12); the furnace body (11) is opened at the top and the bottom; the lower baffle (12) horizontally passes through the lower end of the furnace body (11) and is slidably connected to the furnace body (11); an electromagnetic stirring device (121) is provided on the lower end surface of the lower baffle (12); a discharge pipe (122) is provided on the lower end surface of the lower baffle (12); the discharge pipe (122) is located outside the furnace body (11); a bracket (13) is fixedly provided at the lower end of the furnace body (11); a hydraulic cylinder (14) is fixedly provided on the bracket (13); and the hydraulic cylinder (14) The telescopic end is fixedly connected to an end of the lower baffle (12) away from the discharge pipe (122), a conveyor belt (4) is provided below the discharge pipe (122), a plurality of supporting plates (41) are evenly fixedly provided on the conveyor belt (4) along the circumference, a sand box (42) for placing a sand core mold is detachably connected to an end of the supporting plate (41) away from the conveyor belt (4), the conveyor belt (4) is used to drive the sand box (42) to move from the smelting furnace (1) to the heat treatment furnace (3), and the sliding direction of the lower baffle (12) is parallel to the conveying direction of the conveyor belt (4).

2. The high carbon equivalent low alloy wear-resistant brake disc preparation equipment according to claim 1 is characterized by: A cooling box (2) is provided between the smelting furnace (1) and the heat treatment furnace (3); a first brush roller (21) and a second brush roller (23) with opposite rotation directions are provided below one end of the conveyor belt (4) close to the heat treatment furnace (3); the first brush roller (21) and the second brush roller (23) are arranged in a horizontal direction in the cooling box (2); a transfer device (5) is provided below the first brush roller (21) and the second brush roller (23); a suspension conveyor line (7) is provided above the conveyor belt (4); the suspension conveyor line (7) passes through the cooling box (2) and the heat treatment box in sequence; the transfer device (5) is used to transfer the brake disc dropped from between the first brush roller (21) and the second brush roller (23) to the suspension conveyor line (7).

3. The high carbon equivalent low alloy wear-resistant brake disc preparation equipment according to claim 2 is characterized by: The transfer device (5) comprises a horizontal slide (51) and a vertical slide (52), wherein the vertical slide (52) is located above the horizontal slide (51), the horizontal slide (51) is slidably connected to the cooling box (2) in the horizontal direction, and the vertical slide (52) is slidably connected to the horizontal slide (51) in the vertical direction, and the upper end surface of the vertical slide (52) is detachably connected to a transfer box (53), the upper end of the transfer box (53) is open, and the inside of the transfer box (53) is perpendicular to the axis of the first brush roller (21) and has symmetrical inclined surfaces on both sides, and the suspension conveyor line (7) is evenly provided with a plurality of hooks (71) along the circumferential direction.

4. The high carbon equivalent low alloy wear-resistant brake disc preparation equipment according to claim 2 is characterized by: A sand retaining frame (6) is provided in the cooling box (2); a first brush roller (21) and a second brush roller (23) are both located in the sand retaining frame (6) and are rotatably connected to the sand retaining frame (6); a lower end surface of the sand retaining frame (6) is located above the transfer box (53); a first guide plate (61) is provided between the first brush roller (21) and the conveyor belt (4); a second guide plate (62) is provided above the second brush roller (23); one end of the conveyor belt (4) located in the cooling box (2) is located between the first guide plate (61) and the second guide plate (62); both the first guide plate (61) and the second guide plate (62) are inclined; a distance between the upper ends of the first guide plate (61) and the second guide plate (62) is greater than a distance between the lower ends; and both the first guide plate (61) and the second guide plate (62) are fixedly connected to the sand retaining frame (6).

5. The high carbon equivalent low alloy wear-resistant brake disc preparation equipment according to claim 4 is characterized by: The first material guide plate (61) and the second material guide plate (62) are both provided with a plurality of air jet heads (63), and the plurality of air jet heads (63) are evenly arranged along the axial direction of the first brush roller (21).

6. The high carbon equivalent low alloy wear-resistant brake disc preparation equipment according to claim 4, characterized in that: A waste sand box (54) is slidably connected inside the cooling box (2). The waste sand box (54) is located below the sand retaining frame (6). The waste sand box (54) and the horizontal slide plate (51) slide synchronously in the same direction. A support platform (25) is provided at the bottom of the cooling box (2) for supporting the waste sand box (54) and the transfer box (53).

7. The high carbon equivalent low alloy wear-resistant brake disc preparation equipment according to claim 4 is characterized by: The sand baffle frame (6) comprises a first baffle plate (64), a second baffle plate (65), two side plates (66) and two sliders (67); both ends of the first guide plate (61) and the second guide plate (62) along the axis direction of the first brush roller (21) are fixedly connected to the two side plates (66) respectively; both ends of the first baffle plate (64) along the axis direction of the first brush roller (21) are fixedly connected to the two side plates (66) respectively; the first baffle plate (64) is located on a side of the first brush roller (21) away from the second brush roller (23); both ends of the second baffle plate (65) along the axis direction of the second brush roller (23) are fixedly connected to the two sliders (67) respectively; The second baffle plate (65) is located on a side of the second brush roller (23) away from the first brush roller (21); a through groove (661) is provided on the side plate (66); a slider (67) is slidably connected to the side plate (66) in a horizontal direction in the through groove (661); two ends of the first brush roller (21) along the axial direction are respectively rotatably connected to the two side plates (66); two ends of the second brush roller (23) along the axial direction are respectively rotatably connected to the two sliders (67); one end of the first brush roller (21) is provided with a first motor (22) fixedly connected to the side plate (66); and one end of the second brush roller (23) is provided with a second motor (24) fixedly connected to the slider (67).

8. The high carbon equivalent low alloy wear-resistant brake disc preparation equipment according to claim 1, characterized in that: A support plate (47) is provided inside the conveyor belt (4), and the upper end surface of the support plate (47) abuts against the inner wall of the conveyor belt (4). A first bracket (46) connected to the rotating shaft and a plurality of second brackets (48) fixedly connected to the support plate (47) are provided on both sides of the conveyor belt (4) along the conveying direction. The first bracket (46) located in the cooling box (2) is fixedly connected to the upper end of the cooling box (2).

9. The high carbon equivalent low alloy wear-resistant brake disc preparation equipment according to claim 8, characterized in that: The sand box (42) is provided with a clamping block (421) on both sides parallel to the conveying direction of the conveyor belt (4); the lower end surface of the clamping block (421) abuts against the upper end surface of the carrier plate (41); the upper end surface of the clamping block (421) abuts against the limiting block (44); a first chamfer (441) is provided on the upper end surface of the limiting block (44) close to the sand box (42); limiting grooves (43) for limiting the horizontal movement of the clamping block (421) relative to the conveyor belt (4) are provided on both sides of the carrier plate (41) parallel to the conveying direction of the conveyor belt (4); the clamping block (421) is slidably connected to the limiting groove (43) in the vertical direction; the limiting block (44) passes through the limiting groove (43) horizontally and is slidably connected to the limiting groove (43); an elastic member (45) is provided between an end of the limiting block (44) away from the sand box (42) and an end of the limiting groove (43) away from the sand box (42).

10. The high carbon equivalent low alloy wear-resistant brake disc preparation equipment according to claim 9, characterized in that: A slot (442) extending along the conveying direction of the conveyor belt (4) is provided on a side of the limit block (44) away from the conveyor belt (4); an insert block (49) is fixedly provided on a side of the second bracket (48) farthest from the cooling box (2) and close to the conveyor belt (4); and a second chamfer (491) is provided between a side of the insert block (49) close to the cooling box (2) and a side of the insert block (49) close to the second bracket (48).

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