A cooling device for heat treatment of anchor rings

Abstract

The utility model relates to a kind of cooling device of anchor ring heat treatment, including cooling tank, support is set on cooling tank, baffle is equipped on support, the inside of baffle is equipped with conveying chain, annular conveying chain is equipped with driving sprocket and rotating sprocket, first steering sprocket, second steering sprocket, third steering sprocket and fourth steering sprocket are equipped on conveying chain, the quantity of conveying chain uses two, several chain plates are equipped at interval on two conveying chains, every two chain plates between adjacent are respectively equipped with connecting net, every chain plate is respectively equipped with baffle, the side of every baffle is equipped with several first structure reinforcing plate, the other side of every baffle is equipped with several second structure reinforcing plate, the baffle between every second structure reinforcing plate and adjacent first structure reinforcing plate is respectively equipped with first through-hole.Position limitation can be carried out to anchor ring and the structural strength of baffle can be improved.The utility model is convenient to use, with extensive market prospect.

Description

Technical Field

[0001] This utility model relates to the field of cooling equipment for heat treatment of anchor rings, and specifically to a cooling device for heat treatment of anchor rings. Background Technology

[0002] The heat treatment process for anchorages includes annealing, normalizing, quenching, tempering, and surface heat treatment. Tempering further includes quenching and tempering and aging. The purpose of quenching is to transform supercooled austenite into martensite, which is then combined with tempering at different temperatures to significantly improve the steel's rigidity, hardness, wear resistance, fatigue strength, and toughness. The purpose of tempering is to reheat the quenched steel to a preset temperature range to achieve the desired mechanical properties. Carbon precipitates as fine, uniformly distributed cementite. As the tempering temperature increases, the carbide particles increase in size, the yield point and tensile strength decrease, hardness and brittleness decrease, and elongation and reduction of contraction increase. Its purpose is to eliminate the internal stress generated during quenching to obtain the expected mechanical properties.

[0003] Existing anchor ring quenching equipment operates as follows: it receives anchor rings that have undergone initial heating from the heating equipment, then transports the high-temperature anchor rings to a coolant to complete the quenching process. Finally, the quenched anchor rings are transported to a predetermined position for tempering. Chain mesh conveyors are commonly used by anchor ring manufacturers for quenching. These conveyors can carry anchor rings and transport them to the coolant in the quenching tank. The coolant contacts the high-temperature anchor rings through the gaps in the chain mesh, completing the quenching process. To facilitate the transport of the anchor rings during the quenching process, the chain mesh conveyor uses partitions to push the anchor rings. When the anchor rings are in their initial heated state, the chain mesh conveyor moves them downwards into the quenching tank. After quenching, the chain mesh conveyor moves the anchor rings upwards, removing them from the quenching tank and transporting them to the predetermined position.

[0004] However, existing technology also has drawbacks. Under current process conditions, the anchor rings, after initial heating, are conveyed onto a chain conveyor belt using a transfer device. Once on the conveyor belt, the anchor rings are blocked by partitions and the chain mesh before entering the quenching tank. During this process, the anchor rings impact the partitions, and frequent impacts during daily operation easily deform the partitions. When the deformation reaches a predetermined range, the partitions need to be replaced. Furthermore, when the partitions carry the anchor rings into the coolant in the quenching tank, the anchor rings, constantly moving with the chain conveyor belt, are also easily moved by the coolant flow. Taking a commonly used round anchor as an example, the anchor's position continuously shifts due to the coolant flow on the partition, causing it to detach from the chain conveyor belt and fall into the quenching tank. Therefore, there is room for improvement in existing technology. The aim is to strengthen the structural strength of the partitions on the chain conveyor belt, increase their service life, and provide a limit to prevent the anchor rings from detaching from the chain conveyor belt and falling into the quenching tank, thereby improving production efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a cooling device for anchor ring heat treatment that can improve the structural strength of the partition and limit the position of the anchor ring, thereby overcoming the defects in existing technologies.

[0006] The technical solution adopted by this utility model is as follows: a cooling device for heat treatment of anchor rings, including a cooling tank, a support on the cooling tank, two parallel baffles on the support, a ring-shaped conveyor chain on the inner side of each baffle, a drive sprocket and a rotating sprocket on each ring conveyor chain, a first steering sprocket and a second steering sprocket on the top of each conveyor chain, a third steering sprocket and a fourth steering sprocket on the inner side of each conveyor chain, two conveyor chains, several chain plates spaced apart on the two conveyor chains, a connecting mesh between adjacent chain plates, a partition on each chain plate, several first structural reinforcing plates on one side of each partition, several second structural reinforcing plates on the other side of each partition, the several first structural reinforcing plates and the several second structural reinforcing plates are alternately distributed on the corresponding partitions, and a first through hole is provided in the partition between each second structural reinforcing plate and the adjacent first structural reinforcing plate.

[0007] Preferably, the cooling tank is provided with an outlet end of a main water supply pipe and an inlet end of a first return water main pipe. A pressure boosting and filtration device is provided at the outlet end of the first return water main pipe. The pressure boosting and filtration device includes a pressure boosting filter pipe and a first shut-off valve, a filter, a check valve, a pressure boosting pump, and a second shut-off valve arranged sequentially along the direction from the inlet end to the outlet end of the pressure boosting filter pipe. The outlet end of the pressure boosting filter pipe is connected to the inlet end of a second return water main pipe. The outlet end of the second return water main pipe is connected to the inlet end of the main water supply pipe. An air-cooled heat exchanger is provided on the second return water main pipe.

[0008] Preferably, the number of the pressure-boosting filtration devices is several, and each pressure-boosting filtration device further includes an inlet end of a first connecting pipe provided on the pressure-boosting filtration pipe between the first shut-off valve and the filter, an outlet end of a second connecting pipe provided on the pressure-boosting filtration pipe between the filter and the one-way valve, an inlet end of a third connecting pipe provided on the pressure-boosting filtration pipe between the booster pump and the second shut-off valve, a third shut-off valve provided on both the first connecting pipe and the third connecting pipe, and a first regulating valve provided on the second connecting pipe; the inlet ends of the several second connecting pipes are provided with outlet ends of a fourth connecting pipe, the outlet ends of the several third connecting pipes are connected to the inlet ends of the fourth connecting pipes, and a drain pipe is provided on the outlet ends of the several first connecting pipes.

[0009] Preferably, the outlet end of the pressurized filter pipe is also connected to the inlet end of the chilled water delivery pipe. The chilled water delivery pipe is provided with a second regulating valve, an electric chiller and a first temperature sensor in sequence from the inlet end to the outlet end. A third regulating valve is provided on the second return water main pipe between the inlet end of the second return water main pipe and the air-cooled heat exchanger. A second temperature sensor is provided on the second return water main pipe between the outlet end of the second return water main pipe and the air-cooled heat exchanger. The outlet end of the chilled water delivery pipe is connected to the inlet end of the water delivery main pipe.

[0010] Preferably, a mixing assembly is provided at the outlet end of the second return water main. The mixing assembly includes a mixing tank and an L-shaped delivery branch pipe, a guide cone, and a spiral blade arranged sequentially from the inlet end to the outlet end of the mixing tank. The inlet end of the mixing tank is connected to the outlet end of the second return water main. The inlet end of the delivery branch pipe is connected to the outlet end of the chilled water delivery pipe. The outlet end of the mixing tank is connected to the inlet end of the water main.

[0011] Preferably, a third temperature sensor is installed on the main water supply pipe.

[0012] Preferably, a buffer tube is provided on the cooling tank, and a plurality of second through holes are evenly arranged on the buffer tube. A liquid level sensor is provided on the cooling tank on one side of the buffer tube, and the liquid level sensor is connected to the inner cavity of the buffer tube.

[0013] The beneficial effects of this utility model are as follows: First, by setting several first structural reinforcing plates and several second structural reinforcing plates on the partition and the corresponding chain plate, the mechanical strength of the partition is improved. Furthermore, the several first structural reinforcing plates and several second structural reinforcing plates can limit the position of the anchor ring, reducing the phenomenon of the anchor ring shifting when moving in the coolant. Moreover, each second structural reinforcing plate and the adjacent first structural reinforcing plate are provided with a first through hole in the partition, thereby reducing the deflection of coolant after being blocked by the partition, thus indirectly improving the stability of the anchor ring on the partition.

[0014] Secondly, the chilled water delivery pipe of this utility model is provided with a second regulating valve, an electric chiller and a first temperature sensor in sequence along the direction from the inlet end of the chilled water delivery pipe to the outlet end of the chilled water delivery pipe. The installation of the first temperature sensor facilitates the feedback of temperature parameters.

[0015] Furthermore, a second temperature sensor is installed on the second return water main pipe between the outlet end of the second return water main pipe and the air-cooled heat exchanger; the installation of the second temperature sensor facilitates the feedback of temperature parameters.

[0016] This utility model has a simple structure, is easy to operate, and has a clever design, which greatly improves work efficiency and has good social and economic benefits. It is a product that is easy to promote and use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 for Figure 1 A magnified view of detail A.

[0019] Figure 3 for Figure 1 A magnified view of detail B.

[0020] Figure 4 This is a three-dimensional structural diagram of the component of this utility model.

[0021] Figure 5 This is a structural schematic diagram of the component of this utility model.

[0022] Figure 6 This is a structural schematic diagram of the component of this utility model. Detailed Implementation

[0023] like Figures 1 to 6As shown, a cooling device for heat treatment of anchor rings includes a cooling tank 1. A support 2 is mounted on the cooling tank 1, and two parallel baffles 3 are mounted on the support 2. Each baffle 3 has an annular conveyor chain 4 mounted on its inner side. Each annular conveyor chain 4 has a drive sprocket 5 and a rotating sprocket 6. A first steering sprocket 7 and a second steering sprocket 8 are mounted above each conveyor chain 4. A third steering sprocket 9 and a fourth steering sprocket 10 are mounted on the inner side of each conveyor chain 4. Two conveyor chains 4 are used. The chain plate 4 is provided with several chain plates 11 spaced apart. A connecting mesh 12 is provided between each pair of adjacent chain plates 11. Each chain plate 11 is provided with a partition 13. Each partition 13 has several first structural reinforcing plates 14 on one side and several second structural reinforcing plates 15 on the other side. The first structural reinforcing plates 14 and second structural reinforcing plates 15 are alternately distributed on the corresponding partitions 13. Each partition 13 between each second structural reinforcing plate 15 and an adjacent first structural reinforcing plate 14 is provided with a first through hole 16. The bottom of each of the first structural reinforcing plates 14 and the bottom of each of the second structural reinforcing plates 15 are connected to the adjacent chain plate 11.

[0024] The cooling tank 1 is equipped with an outlet end of a main water supply pipe 17 and an inlet end of a first return water main pipe 18. A booster filtration device is installed at the outlet end of the first return water main pipe 18. This booster filtration device includes a booster filter pipe 19 and, along with the inlet end to the outlet end of the booster filter pipe 19, a first shut-off valve 20, a filter 21, a one-way valve 22, a booster pump 23, and a second shut-off valve 24, arranged sequentially. The outlet end of the booster filter pipe 19 is connected to the inlet end of a second return water main pipe 25. The outlet end of the second return water main pipe 25 is connected to the inlet end of the main water supply pipe 17. An air-cooled heat exchanger 26 is installed on the second return water main pipe 25. Thus, the circulating water is filtered by the filter 21 in the booster filtration device, then transported to the air-cooled heat exchanger 26 for cooling, and finally returned to the cooling tank 1 to form a cycle.

[0025] Furthermore, when the filter 21 has been used for a preset time, its flow resistance will increase, requiring backwashing or filter element replacement. To facilitate continuous filtration and pressurization of circulating water, and to use the filtered and pressurized circulating water as a backwashing source for the filter 21, this product employs several pressurized filtration devices. Each pressurized filtration device includes the inlet end of the first connecting pipe 27 on the pressurized filtration pipe 19 between the first shut-off valve 20 and the filter 21, the filter 21, and a one-way valve. The outlet end of the second connecting pipe 28 provided on the booster filter pipe 19 between valves 22, the inlet end of the third connecting pipe 29 provided on the booster filter pipe 19 between the booster pump 23 and the second shut-off valve 24, the third shut-off valve 30 provided on the first connecting pipe 27 and the third connecting pipe 29 respectively, and the first regulating valve 31 provided on the second connecting pipe 28; the outlet end of the fourth connecting pipe 32 is provided on the inlet end of the several second connecting pipes 28, the outlet end of the several third connecting pipes 29 is connected to the inlet end of the fourth connecting pipe 32, and the drain pipe 33 is provided on the outlet end of the several first connecting pipes 27. By adjusting the opening of the first regulating valve 31, the pressurized and filtered circulating water is diverted through the corresponding third connecting pipe 29 to form a backwash flow. This backwash flow is then transported through the fourth connecting pipe 32 and the corresponding second connecting pipe 28 to the outlet of the filter 21 to be backwashed, and then discharged from the outlet of the filter 21. During this process, particulate impurities adhering to the filter 21 are discharged along with the backwash flow from the outlet of the filter 21. Finally, the backwash flow carrying the particulate impurities is discharged into the ditch via the corresponding first connecting pipe 27 and the drain pipe 33. Furthermore, to facilitate the determination of the backwashing progress of the filter 21, an online turbidity meter 34 is installed on the drain pipe 33. The online turbidity meter 34 continuously provides turbidity feedback on the flow discharged through the drain pipe 33. When the value fed back by the online turbidity meter 34 reaches a preset range, the filter 21 to be backwashed is considered to have completed the backwashing process.

[0026] When the ambient temperature is too high in summer and / or when the number of quenched workpieces transported upstream is too large, the air-cooled heat exchanger 26 alone is insufficient to cool the passing liquid flow to within the preset range. Therefore, the outlet end of the pressurized filter pipe 19 of this product is also connected to the inlet end of the chilled water delivery pipe 35. The chilled water delivery pipe 35 is provided with a second regulating valve 36, an electric chiller 37 and a first temperature sensor 38 in sequence from the inlet end to the outlet end of the chilled water delivery pipe 35. A third regulating valve 39 is provided on the second return water main pipe 25 between the inlet end of the second return water main pipe 25 and the air-cooled heat exchanger 26. A second temperature sensor 40 is provided on the second return water main pipe 25 between the outlet end of the second return water main pipe 25 and the air-cooled heat exchanger 26. The outlet end of the chilled water delivery pipe 35 is connected to the inlet end of the water supply main pipe 17. The liquid flow is divided into two parts: a first part and a second part. The first part is still supplied to the cold source channel of the air-cooled heat exchanger 26 for heat exchange with the air, thus cooling the first part of the liquid flow. At the same time, the second part of the liquid flow is supplied to the electric refrigerator 37 for cooling. The cooled second part of the liquid flow and the first part of the liquid flow cooled by the air-cooled heat exchanger 26 are combined to form a cooling liquid flow, which is then sent back to the cooling tank 1. Furthermore, in order to facilitate the uniform mixing of the first and second liquid flows to form a cooling liquid flow, this product is equipped with a mixing assembly at the outlet end of the second return water main pipe 25. The mixing assembly includes a mixing tank 41 and an L-shaped conveying branch pipe 42, a guide cone 43, and a spiral blade 44 arranged sequentially from the inlet end to the outlet end of the mixing tank 41. The inlet end of the mixing tank 41 is connected to the outlet end of the second return water main pipe 25, the inlet end of the conveying branch pipe 42 is connected to the outlet end of the chilled water conveying pipe 35, and the outlet end of the mixing tank 41 is connected to the inlet end of the water supply main pipe 17. The first portion of the liquid flow is delivered into the mixing tank 41, while the second portion of the liquid flow is delivered into the mixing tank 41 through the delivery branch pipe 42. The first and second portions of the liquid flow entering the mixing tank 41 are guided by the guide cone 43 and delivered to the spiral blades 44. After being guided by the spiral blades 44, they undergo forced rotation, ultimately causing the first and second portions of the liquid flow to mix evenly and form a cooling liquid flow. Furthermore, a third temperature sensor 45 is installed on the main water supply pipe 17 of this product; the installation of the third temperature sensor 45 facilitates the measurement of the temperature parameters of the cooling liquid flow.

[0027] The water in the cooling tank 1 is in a flowing state, and the water level in the cooling tank 1 fluctuates greatly during the process of the anchor ring being transported into the water. In order to provide feedback on the liquid level in the cooling tank 1, a buffer tube 46 is provided on the cooling tank 1 of this product. The buffer tube 46 is provided with a plurality of evenly arranged second through holes 47. A liquid level sensor 48 is provided on one side of the cooling tank 1, and the liquid level sensor 48 is connected to the inner cavity of the buffer tube 46. The water in the cooling tank 1 enters the inner cavity of the buffer tube 46 through the plurality of second through holes 47 and the bottom end of the buffer tube 46. After being rectified by the plurality of second through holes 47, the liquid level fluctuation value in the buffer tube 46 is relatively lower than the liquid level fluctuation value in the cooling tank 1, so that the liquid level sensor 48 can be used to provide feedback on the liquid level in the buffer tube 46 and thus determine the liquid level in the cooling tank 1.

[0028] The instructions for using this product are as follows: Figures 1 to 6 As shown, the anchor ring to be quenched is conveyed by the upstream conveying equipment to the connecting net 12 between the drive sprocket 5 and the first steering sprocket 7. Due to the influence of the anchor ring's own weight, the anchor ring is blocked by the adjacent partition 13 below it, and is further blocked by the adjacent second structural reinforcing plate 15. The relative position of the anchor ring is then fixed. The partition 13 drives the anchor ring to descend to the cooling tank 1 and contact the flowing cooling water to complete the quenching process. During the movement of the quenched anchor ring between the first steering sprocket 7 and the second steering sprocket 8, it is driven by the flowing cooling water and limited by the baffle 3. It is then blocked by the adjacent partition 13. During this process, the flowing cooling water continuously passes through the first through-hole 16 near the quenched anchor ring, reducing the flow rate after being blocked by the partition 13. This reduces the driving force that would cause the quenched anchor ring to deviate, thus fixing its position relatively under the limitation provided by the corresponding first structural reinforcing plate 14. Finally, the quenched anchor ring continues to move forward under the obstruction of the partition 13 and is transported to the preset area by one side of the rotating sprocket 6.

[0029] In this embodiment, by providing a plurality of first structural reinforcing plates 14 and a plurality of second structural reinforcing plates 15 on the partition 13 and the corresponding chain plate 11, the mechanical strength of the partition 13 is improved, and the plurality of first structural reinforcing plates 14 and the plurality of second structural reinforcing plates 15 can limit the position of the anchor ring, reducing the phenomenon of the anchor ring shifting when moving in the coolant. Furthermore, each second structural reinforcing plate 15 and the adjacent first structural reinforcing plate 14 are provided with a first through hole 16 in the partition 13, thereby reducing the deflection of coolant after being blocked by the partition 13, thereby indirectly improving the stability of the anchor ring on the partition 13.

[0030] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A cooling device for heat treatment of anchor rings, characterized in that: The system includes a cooling tank (1), on which a support (2) is provided. The support (2) has two parallel baffles (3). Each baffle (3) has an annular conveyor chain (4) on its inner side. Each annular conveyor chain (4) has a drive sprocket (5) and a rotating sprocket (6). Each conveyor chain (4) has a first steering sprocket (7) and a second steering sprocket (8) on its upper side. Each conveyor chain (4) has a third steering sprocket (9) and a fourth steering sprocket (10) on its inner side. The system uses two conveyor chains (4), with a spacing between them. There are several chain plates (11), and a connecting mesh (12) is provided between each two adjacent chain plates (11). Each chain plate (11) is provided with a partition (13). Each partition (13) has several first structural reinforcing plates (14) on one side and several second structural reinforcing plates (15) on the other side. The several first structural reinforcing plates (14) and several second structural reinforcing plates (15) are alternately distributed on the corresponding partitions (13). Each second structural reinforcing plate (15) and the partition (13) between the adjacent first structural reinforcing plate (14) are provided with a first through hole (16).

2. The cooling device for heat treatment of anchor rings according to claim 1, characterized in that: The cooling tank (1) is provided with the outlet end of the water supply main pipe (17) and the inlet end of the first return water main pipe (18). The outlet end of the first return water main pipe (18) is provided with a pressure boosting filter device. The pressure boosting filter device includes a pressure boosting filter pipe (19) and a first shut-off valve (20), a filter (21), a one-way valve (22), a booster pump (23), and a second shut-off valve (24) arranged sequentially along the direction from the inlet end of the pressure boosting filter pipe (19) to the outlet end of the pressure boosting filter pipe (19). The outlet end of the pressure boosting filter pipe (19) is connected to the inlet end of the second return water main pipe (25). The outlet end of the second return water main pipe (25) is connected to the inlet end of the water supply main pipe (17). An air-cooled heat exchanger (26) is provided on the second return water main pipe (25).

3. The cooling device for the heat treatment of anchor rings according to claim 2, characterized in that: The number of the pressurized filtration devices is several. Each pressurized filtration device also includes the inlet end of the first connecting pipe (27) provided on the pressurized filtration pipe (19) between the first shut-off valve (20) and the filter (21), the outlet end of the second connecting pipe (28) provided on the pressurized filtration pipe (19) between the filter (21) and the one-way valve (22), the inlet end of the third connecting pipe (29) provided on the pressurized filtration pipe (19) between the pressurized pump (23) and the second shut-off valve (24), the third shut-off valve (30) provided on the first connecting pipe (27) and the third connecting pipe (29) respectively, and the first regulating valve (31) provided on the second connecting pipe (28); the inlet end of the several second connecting pipes (28) is provided with the outlet end of the fourth connecting pipe (32), the outlet end of the several third connecting pipes (29) is connected to the inlet end of the fourth connecting pipe (32), and the outlet end of the several first connecting pipes (27) is provided with the drain pipe (33).

4. The cooling device for the heat treatment of anchor rings according to claim 2, characterized in that: The outlet end of the pressurized filter pipe (19) is also connected to the inlet end of the chilled water delivery pipe (35). The chilled water delivery pipe (35) is provided with a second regulating valve (36), an electric chiller (37) and a first temperature sensor (38) in sequence from the inlet end to the outlet end of the chilled water delivery pipe (35). A third regulating valve (39) is provided on the second return water main pipe (25) between the inlet end of the second return water main pipe (25) and the air-cooled heat exchanger (26). A second temperature sensor (40) is provided on the second return water main pipe (25) between the outlet end of the second return water main pipe (25) and the air-cooled heat exchanger (26). The outlet end of the chilled water delivery pipe (35) is connected to the inlet end of the water supply main pipe (17).

5. The cooling device for the heat treatment of anchor rings according to claim 4, characterized in that: A mixing assembly is provided at the outlet end of the second return water main (25). The mixing assembly includes a mixing tank (41) and an L-shaped conveying branch pipe (42), a guide cone (43) and a spiral blade (44) arranged sequentially from the inlet end to the outlet end of the mixing tank (41). The inlet end of the mixing tank (41) is connected to the outlet end of the second return water main (25). The inlet end of the conveying branch pipe (42) is connected to the outlet end of the chilled water conveying pipe (35). The outlet end of the mixing tank (41) is connected to the inlet end of the water supply main (17).

6. The cooling device for heat treatment of anchor rings according to claim 2, characterized in that: A third temperature sensor (45) is installed on the main water supply pipe (17).

7. The cooling device for heat treatment of anchor rings according to claim 1, characterized in that: A buffer tube (46) is provided on the cooling tank (1), and a number of second through holes (47) are evenly arranged on the buffer tube (46). A liquid level sensor (48) is provided on the cooling tank (1) on one side of the buffer tube (46), and the liquid level sensor (48) and the inner cavity of the buffer tube (46) are connected.

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