Forged ball air-cooling sorting device

Abstract

The utility model relates to a forged ball air-cooling sorting device which comprises a transmission chain mechanism, a pair of transmission chains, chain wheels arranged at the two ends of the pair of transmission chains and a plurality of ball pushing plates evenly distributed between the transmission chains, the transmission chain on the upper layer is provided with an upper-layer ball supporting plate, and the transmission chain on the lower layer is provided with a lower-layer ball supporting plate. The ball distributing mechanism comprises a ball distributing plate and a supporting frame hinged to the middle of the ball distributing plate, the lower portions of the two ends of the ball distributing plate are hinged to the first air pressure rod and the second air pressure rod respectively, the controller is connected with the temperature measuring probe and the ball distributing mechanism, and the controller controls the first air pressure rod or the second air pressure rod of the ball distributing mechanism to stretch out and draw back according to the temperature measured by the temperature measuring probe. According to the utility model, the on-site space utilization rate is improved, the length of the air cooling track is prolonged in a space folding manner, the temperature of the forged balls before quenching is reduced, the surface temperature of the forged balls before quenching is accurately controlled through the temperature measuring equipment, the optimal quenching effect of the steel balls and the high consistency of quality during batch production are ensured, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel ball manufacturing, and particularly relates to a forging ball air-cooling sorting device. Background Art

[0002] With the development of the times, the recognition of forged steel balls by mining users is getting higher and higher. During use, it can significantly absorb the energy generated by collisions, causing work hardening on its surface, greatly improving surface wear resistance. At the same time, since its interior always maintains the initial low hardness and high toughness state, and the material itself has excellent absorption capacity for vibration energy, it has obvious advantages when used in large ball mills.

[0003] Forged steel balls refer to steel balls formed by heating raw materials such as round steel to a certain high temperature and then through processes of hot forging, air cooling, quenching, and tempering. In order to obtain higher overall hardness and wear resistance, it is necessary to rapidly cool the overall temperature of the steel balls to far below the martensite start transformation temperature during quenching and keep it in a continuous cooling state. To ensure the appearance quality of the forged balls and smooth production during the forging process, the steel billets need to be forged into shape after being heated at high temperature. The surface temperature of the forged balls after forming is relatively high, and high-temperature quenching may cause excessive surface and internal stresses, resulting in problems such as surface cracking or fragmentation. Therefore, the steel balls need a cooling process before quenching to prevent product fragmentation and other problems caused by high-temperature quenching.

[0004] The surface temperature of the forged steel balls after forming is relatively high, and natural air cooling requires a relatively long time. When the existing forged balls are air-cooled, to meet the production process requirements, the cooling time of the steel balls is increased by increasing the length of the track. However, increasing the track length increases the floor space in the workshop, resulting in an unreasonable layout of the production site. Before quenching, it is necessary to manually measure the surface temperature of the steel balls and manually sort out the steel balls with unqualified quenching water inlet temperatures. The production intensity is relatively high, the workload is large, the degree of automation is low, and there are certain safety hazards in production.

[0005] Therefore, it is necessary to provide a forging ball air-cooling sorting device that can reach the quenching temperature required by the production process, reduce the floor space, and can automatically measure temperature and sort, reduce the workload of front-line workers on site, improve production efficiency, improve the working environment to a certain extent, enhance the degree of mechanical automation, ensure the best quenching effect of the steel balls and the consistency of quality during batch production, and ensure the controllability of product quality during batch production. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a forging ball air-cooling sorting device that uses a double-layer transmission chain to extend the length of the air-cooling track, reduce the floor space, and precisely control the quenching temperature of the forging balls to ensure product quality.

[0007] The purpose of the utility model is achieved by the following technical solutions:

[0008] The air-cooling sorting device for forging balls of the present utility model is arranged before the forging ball quenching process and includes:

[0009] A transmission chain mechanism, including a pair of transmission chains, sprockets arranged at both ends of the pair of transmission chains, and a plurality of ball-pushing plates evenly arranged between the transmission chains. A horizontally arranged upper ball-supporting plate is provided at the lower part of the upper transmission chain, and a first ball outlet is provided at one end of the upper ball-supporting plate. A horizontally arranged lower ball-supporting plate is provided at the bottom of the lower transmission chain, and a second ball outlet is provided at the other end of the lower ball-supporting plate;

[0010] A driving device, including a motor, and the output shaft of the motor is connected to the sprocket through a driving sprocket;

[0011] A ball-sorting mechanism, including a ball-sorting plate and a support frame hinged to the middle of the ball-sorting plate. The lower parts of both ends of the ball-sorting plate are respectively hinged to a first air pressure rod and a second air pressure rod.

[0012] A temperature-measuring probe, which is arranged at the second ball outlet and is used to detect the temperature of the forging balls after air cooling;

[0013] A controller, which is respectively connected to the temperature-measuring probe and the ball-sorting mechanism. According to the temperature measured by the temperature-measuring probe, the controller controls the expansion and contraction of the first air pressure rod or the second air pressure rod of the ball-sorting mechanism.

[0014] Preferably, the sprocket includes a driving sprocket and a driven sprocket. The driving sprocket is arranged at one end of the transmission chain and is connected to the driving sprocket, and the driven sprocket is arranged at the other end of the transmission chain. The driving sprocket is arranged on a driving shaft, and the driven sprocket is arranged on a driven shaft.

[0015] Preferably, the temperature-measuring probe is arranged below the second ball outlet and faces the ball-sorting plate.

[0016] Preferably, a waste ball guide groove is provided on one side of the first air pressure rod for conveying steel balls with a temperature lower than the set temperature to a waste ball basket; a quenching pool guide groove is provided on one side of the second air pressure rod for conveying steel balls with qualified temperature to a quenching pool.

[0017] Preferably, a ball guide plate inclined downward is provided at the first ball outlet.

[0018] Advantages of the present utility model:

[0019] The forging ball air-cooling sorting device of the present utility model can extend the length of the air-cooling track, reduce the temperature of the forging ball before quenching, and reduce the floor space on the basis of the existing chain drive by arranging upper and lower layers of ball supporting plate structures at the lower part of the double-layer transmission chain. Through the temperature measuring probe, the controller and the ball sorting mechanism, the surface temperature of the forging ball before quenching is accurately controlled, the instability of manual temperature measurement is eliminated, the defects of the traditional production process are overcome, the best quenching effect of the steel ball and the high consistency of the quality during mass production are ensured, the production efficiency is improved, the rejection rate of the finished ball is reduced, and the purpose of cost reduction and efficiency increase is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other objects, features and advantages of the present utility model will become more apparent by describing the exemplary embodiments of the present utility model in more detail in conjunction with the drawings. Among them, in the exemplary embodiments, the same reference numerals generally represent the same components.

[0021] Figure 1 FIG. is a schematic structural diagram of the forging ball air-cooling sorting device according to an embodiment of the present utility model.

[0022] Figure 2 FIG. is a schematic driving structure diagram of the transmission chain mechanism according to an embodiment of the present utility model.

[0023] Description of the reference numerals: 1, chute; 2, forging ball; 3, transmission chain; 4, ball pushing plate; 5, upper layer ball supporting plate; 6, first ball outlet; 7, ball guiding plate; 8, lower layer ball supporting plate; 9, sprocket; 10, second ball outlet; 11, temperature measuring probe; 12, first pneumatic rod; 13, quenching pool guiding groove; 14, support frame; 15, waste ball guiding groove; 16, second pneumatic rod; 17, ball sorting plate; 18, motor; 19, driving sprocket; 20, driving sprocket; 21, driving shaft; 22, driven sprocket; 23, driven shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The preferred embodiments of the present utility model will be described in more detail below. Although the following describes the preferred embodiments of the present utility model, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present utility model more thorough and complete, and to convey the scope of the present utility model to those skilled in the art completely.

[0025] As Figure 1 and Figure 2 shown, the forging ball air-cooling sorting device of this embodiment is arranged before the forging ball quenching process and includes:

[0026] The transmission chain mechanism includes a pair of transmission chains 3, sprockets 9 provided at both ends of the pair of transmission chains 3, and a plurality of ball pushing plates 4 evenly arranged between the transmission chains 3. A horizontally arranged upper ball supporting plate 5 is provided at the lower part of the upper transmission chain 3. One end of the upper ball supporting plate 5 is provided with a hollow first ball outlet 6. A horizontally arranged lower ball supporting plate 8 is provided at the bottom of the lower transmission chain 3. A ball guiding plate 7 inclined downward is provided at the first ball outlet 6. The forging ball 2 can slide down along the ball guiding plate 7 to the lower ball supporting plate 8. The other end of the lower ball supporting plate 8 is provided with a hollow second ball outlet 10; a driving device, including a motor 18, and the output shaft of the motor 18 is connected to the sprocket 9 through a driving sprocket 19; a ball sorting mechanism, including a ball sorting plate 17 and a support frame 14 hinged to the middle of the ball sorting plate 17. The lower parts of both ends of the ball sorting plate 17 are respectively hinged to a first air pressure rod 12 and a second air pressure rod 16; a temperature measuring probe 11, the temperature measuring probe 11 is arranged at the second ball outlet 10 for detecting the temperature of the forging ball after air cooling; a controller (not shown), the controller is respectively connected to the temperature measuring probe 11 and the ball sorting mechanism, and according to the temperature measured by the temperature measuring probe 11, the controller controls the expansion and contraction of the first air pressure rod 12 or the second air pressure rod 16 of the ball sorting mechanism.

[0027] The forging ball air cooling and sorting device of the present utility model can extend the length of the air cooling track, reduce the temperature of the forging ball before quenching, and reduce the floor space on the basis of the existing chain drive by arranging the upper and lower ball supporting plate structures at the lower part of the double-layer transmission chain. Through the temperature measuring probe, the controller and the ball sorting mechanism, the surface temperature of the forging ball before quenching is accurately controlled, the instability of manual temperature measurement is eliminated, the defects of the traditional production process are overcome, the best quenching effect of the steel ball and the high consistency of the quality during batch production are ensured, the production efficiency is improved, the rejection rate of the finished ball is reduced, and the purpose of cost reduction and efficiency increase is achieved.

[0028] In this embodiment, as Figure 2 shown, the sprocket 9 includes a driving sprocket 20 and a driven sprocket 22. The driving sprocket 20 is arranged at one end of the transmission chain 3 and is connected to the driving sprocket 19 of the motor 18. The driven sprocket 22 is arranged at the other end of the transmission chain 3. The driving sprocket 20 is arranged on a driving shaft 21, and the driven sprocket 22 is arranged on a driven shaft 23. The driving sprocket 19 of the motor 18 is connected to the driving sprocket 20. The driving sprocket 20 drives the driving shaft 21 to rotate, drives the driven sprocket 22 to rotate through the transmission chain 3, and the driving shaft 21 and the driven shaft 23 are respectively fixed to the base through bearing seats.

[0029] In this embodiment, the temperature measuring probe 11 is arranged below the second ball outlet 10 and faces the ball sorting plate 17, so as to better align with the cooled forging ball 2 for temperature measurement.

[0030] In this embodiment, a waste ball guide groove 15 is provided on one side of the first pneumatic rod 12 for conveying the forged balls 2 with a temperature lower than the set temperature to the waste ball basket; a quenching pool guide groove is provided on one side of the second pneumatic rod 16.

[0031] The working principle of the forged ball air-cooling sorting device in this embodiment: After the steel billet is heated by medium frequency, it is forged and formed by forging equipment. The formed high-temperature forged balls 2 enter the transmission chain mechanism from the left end through the chute, and are pushed by the ball pushing plate 4 to roll forward from left to right. The forged balls 2 naturally cool down during the rolling process on the upper ball supporting plate 5. When the forged balls 2 are pushed to the right end of the transmission chain 3, they fall from the first ball outlet 6 of the upper ball supporting plate 5. The forged balls 2 fall due to their own gravity and drop onto the lower ball supporting plate 8 along the ball guiding plate 7. The forged balls 2 enter the lower ball supporting plate 8 and are continuously pushed by the ball pushing plate 4, and continue to cool down during the movement from right to left. The forged balls 2 are pushed to the second ball outlet 10 at the left end of the transmission chain 3 on the lower ball supporting plate and are introduced into the ball sorting mechanism.

[0032] For the forged balls 2 entering the ball sorting mechanism, temperature measurement is carried out through the temperature measuring probe 11. When the forged balls meet the quenching temperature requirements, the ball sorting plate 17 is driven by the second pneumatic rod 16, and one side of the ball sorting plate 17 is lifted to guide the high-temperature forged balls 2 that meet the quenching temperature into the quenching pool; when the temperature of the forged balls 2 is lower than the quenching temperature, the ball sorting plate 17 is driven by the first pneumatic rod 12, and the other side is lifted and rolls into the waste ball hopper. In this way, the low-temperature forged balls are screened out and enter the waste ball hopper for storing unqualified products. Since the production speed of forging and forming the forged balls is relatively slow, it can avoid the accumulation of forged balls during the air-cooling process of the transmission chain, and further avoid the accumulation of forged balls in the ball sorting mechanism, ensuring that the ball sorting mechanism can operate in coordination with the transmission chain mechanism.

[0033] The forged ball air-cooling sorting device in this embodiment has an upper and lower two-layer ball supporting plate structure, which can extend the length of the air-cooling track in a space folding manner on the basis of the existing chain drive, reduce the temperature of the forged balls before quenching, reduce the floor space, improve the degree of automation, accurately control the surface temperature of the forged balls before quenching, eliminate the instability of manual temperature measurement, overcome the defects of the traditional production process, and improve the on-site operation environment. It ensures the best quenching effect of the steel balls and the high consistency of quality during batch production, improves production efficiency, and reduces the scrap rate of finished balls.

[0034] The embodiments of the present invention have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments.

Claims

1. A forged ball air cooling sorting device, which is arranged before the forged ball quenching process, characterized in that: include: The transmission chain mechanism comprises a pair of transmission chains, sprockets arranged at both ends of the pair of transmission chains, and a plurality of ball pushing plates evenly distributed between the transmission chains, wherein a horizontally arranged upper ball holding plate is arranged at the lower part of the upper transmission chain, and a first ball outlet is arranged at one end of the upper ball holding plate, and a horizontally arranged lower ball holding plate is arranged at the bottom of the lower transmission chain, and a second ball outlet is arranged at the other end of the lower ball holding plate; A driving device, comprising a motor, an output shaft of the motor being connected to the sprocket via a driving sprocket; A ball distribution mechanism, comprising a ball distribution plate and a support frame hinged to the middle of the ball distribution plate, wherein the lower parts of both ends of the ball distribution plate are hinged to the first gas pressure rod and the second gas pressure rod respectively; A temperature measuring probe, which is arranged at the second ball outlet and is used to detect the temperature of the forged ball after air cooling; A controller is connected to the temperature measuring probe and the ball dividing mechanism respectively. According to the forging ball temperature measured by the temperature measuring probe, the controller controls the extension and retraction of the first gas pressure rod or the second gas pressure rod of the ball dividing mechanism.

2. The forged ball air cooling sorting device according to claim 1 is characterized in that: The sprocket includes a driving sprocket and a driven sprocket. The driving sprocket is arranged at one end of the transmission chain and connected to the driving sprocket. The driven sprocket is arranged at the other end of the transmission chain. The driving sprocket is arranged on a driving shaft, and the driven sprocket is arranged on a driven shaft.

3. The forged ball air cooling sorting device according to claim 1 is characterized in that: The temperature measuring probe is arranged below the second ball outlet and faces the ball distribution plate.

4. The forged ball air cooling sorting device according to claim 1, characterized in that: A waste ball guide groove is provided on one side of the first pneumatic rod for conveying steel balls with a temperature lower than a set temperature to a waste ball basket; a quenching pool guide groove is provided on one side of the second pneumatic rod for conveying steel balls with a qualified temperature to the quenching pool.

5. The forged ball air cooling sorting device according to claim 1, characterized in that: A ball guide plate inclined downward is provided at the first ball outlet.

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