Mist cooling device for large long-axis ultra-fine grain alloy steel forgings

Abstract

The utility model relates to a fog cooling device for a large long-axis ultra-fine grain alloy steel forge piece. The fog cooling device comprises a fog cooling mechanism and a cooling pond, the mist cooling mechanism comprises a mist cooling assembly, a main pipeline and a plurality of connectors. The mist cooling assembly comprises two connecting rings and a plurality of mist spraying pipelines. The spraying pipeline is provided with a plurality of nozzles along the axis. The spray cooling device has the advantages that water mist is continuously sprayed through the spray pipeline, the spray cooling speed can be regulated and controlled by adjusting the water flow according to the valve of the main pipeline, the overall cooling speed is between air cooling and oil cooling, the spray cooling device is suitable for quenching and tempering of forging parts, and internal structures of the forging parts are prevented from being changed.

Description

Technical Field

[0001] The utility model relates to the technical field of metal forging processing, in particular to a mist cooling device for large-scale long-axis ultra-fine grain alloy steel forgings. Background Art

[0002] Forgings need to be cooled, and long-axis forgings are usually sunk into a water pool or oil pool. Some materials have good hardenability, and water cooling is prone to quenching cracks. At present, the cost of using oil pools in factories is high, while air cooling cannot meet the hardness and performance requirements, and the cooling uniformity is poor.

[0003] Therefore, there is a problem of producing defective products when cooling the alloy steel forgings. Utility Model Content

[0004] The utility model aims to provide a mist cooling device for large long-axis ultrafine grain alloy steel forgings, which can avoid the problem of internal structure change of the forgings during cooling and has good cooling effect.

[0005] In order to achieve the above-mentioned utility model object, the utility model provides a large-scale long-axis ultrafine grain alloy steel forging mist cooling device, including a mist cooling mechanism and a cooling pool, wherein the mist cooling mechanism is located in the cooling pool;

[0006] The mist cooling mechanism includes a mist cooling component, a main pipeline, and a plurality of interfaces. The mist cooling component includes two connecting rings and a plurality of spray pipelines. The plurality of spray pipelines are arranged in a circular array between the two connecting rings. The main pipeline is connected to the top of the mist cooling component through the interface. The plurality of spray pipelines are all connected to the corresponding interfaces. The main pipeline is provided with a water inlet.

[0007] The spray pipeline is provided with a plurality of spray heads along the axis.

[0008] Preferably, a plurality of reinforcing ribs are provided between the two connecting rings.

[0009] As a further improvement of the utility model, a plurality of the mist cooling components are provided, and the mist cooling mechanism further comprises an adapter, and the respective mist cooling components are axially connected one by one through the adapter.

[0010] As a further improvement of the utility model, the spray head is detachably connected to the spray pipe via a fastener.

[0011] As a further improvement of the utility model, a load-bearing beam is provided on the top of the cooling pool, and the mist cooling mechanism is mounted on the load-bearing beam.

[0012] As a further improvement of the utility model, a guardrail is provided on the top of the cooling pool.

[0013] As a further improvement of the utility model, a water outlet is provided at the bottom of the cooling pool.

[0014] The utility model discloses a large-scale long-axis ultrafine grain alloy steel forging mist cooling device, which allows the hoisted workpiece to pass through the mist cooling component in the cooling pool, and the spray pipe around the workpiece continuously sprays water mist through the water flow transmitted by the main pipeline, and the main pipeline is connected to a valve outside to control the water flow speed, so as to fully mist cool the outer wall of the workpiece.

[0015] Compared with the prior art, the utility model large-scale long-axis ultra-fine grain alloy steel forging mist cooling device has the following advantages:

[0016] Water mist is continuously sprayed through the spray pipe. The spray cooling rate can be controlled by adjusting the water flow rate through the valve of the main pipeline. The overall cooling rate is between air cooling and oil cooling, which is suitable for the quenching and tempering treatment of forgings to avoid changes in the internal structure of the forgings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the mist cooling device for large-scale long-axis ultrafine grain alloy steel forgings of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the mist cooling component;

[0019] Figure 3 This is a schematic diagram of the connection structure of the mist cooling component;

[0020] Figure 4 Schematic diagram of the spray pipe structure. DETAILED DESCRIPTION

[0021] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1 As shown, the large-scale long-axis ultrafine grain alloy steel forging mist cooling device of the utility model comprises a mist cooling mechanism 1 and a cooling pool 2, wherein the mist cooling mechanism 1 is located in the cooling pool 2;

[0023] like Figure 2-3 As shown, the mist cooling mechanism 1 includes a mist cooling component 11, a main pipeline 12, and a plurality of interfaces 14. The mist cooling component 11 includes two connecting rings 111 and a plurality of spray pipes 112. The plurality of spray pipes 112 are arranged in a circular array between the two connecting rings 111. The connecting rings 111 strengthen the connection of the spray pipes 112, thereby preventing the longer spray pipes 112 from being distorted and colliding with the workpiece 5 to cause production accidents.

[0024] The main pipeline 12 is connected to the top of the mist cooling component 11 through the interface 14, and several spray pipes 112 are connected to the corresponding interfaces 14. The main pipeline 12 is provided with a water inlet 13 for connecting a water pump to introduce water into the main pipeline 12, and the water flows into the spray pipe 112 from each interface 14.

[0025] A plurality of reinforcing ribs 115 are provided between the two connecting rings 111 to strengthen the connection strength of the two connecting rings 111 and prevent the spray pipe 112 from being too long, which may cause the bending mist cooling component 11 to bend and collide with the workpiece 5 .

[0026] It is preferred that a plurality of mist cooling components 11 are provided, and the mist cooling mechanism 1 also includes an adapter 15. The mist cooling components 11 are axially connected one by one through the adapter 15. The mist cooling components 11 are designed as a split structure. Compared with the integrated structure, the split mist cooling components 11 can select different numbers of mist cooling components 11 for splicing according to different lengths of workpieces 5, which is convenient for repairing pipelines.

[0027] like Figure 4 As shown, the spray pipe 112 is provided with a plurality of nozzles 113 along the axis, and the water flow in the spray pipe 112 is sprayed out from the nozzles 113 to form water mist and sprayed on the surface of the workpiece 5. The nozzles 113 are detachably connected to the spray pipe 112 through fasteners, which is convenient for replacing individual damaged nozzles 113 and for regularly cleaning the nozzles 113 to avoid clogging of the nozzles 113 and affecting the spraying effect of the water mist.

[0028] A load-bearing beam 3 is provided on the top of the cooling pool 2 , and the mist cooling mechanism 1 is placed on the load-bearing beam 3 , so as to facilitate the loading and unloading of the mist cooling mechanism 1 .

[0029] A guardrail 4 is provided on the top of the cooling pool 2. Since the workpiece 5 is relatively large and the cooling pool 2 on the production line is relatively deep, the guardrail 4 serves to protect the operator.

[0030] A water outlet 22 is provided at the bottom of the cooling pool 2 , and sewage in the pool is discharged from the water outlet 2 .

[0031] The utility model discloses a large-scale long-axis ultrafine-grain alloy steel forging mist cooling device, wherein a hoisted workpiece 5 is inserted into a mist cooling assembly 11 in a cooling pool 2, and a spray pipe 112 around the workpiece 5 continuously sprays water mist through the water flow transmitted by a main pipe 12, and a valve connected to the main pipe 12 controls the water flow speed, thereby comprehensively mist cooling the outer wall of the workpiece 5.

[0032] The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all within the scope defined by the claims of this application.

Claims

1. A mist cooling device for large long-axis ultrafine grain alloy steel forgings, characterized in that: It comprises a mist cooling mechanism and a cooling pool, wherein the mist cooling mechanism is located in the cooling pool; The mist cooling mechanism includes a mist cooling component, a main pipeline, and a plurality of interfaces. The mist cooling component includes two connecting rings and a plurality of spray pipelines. The plurality of spray pipelines are arranged in a circular array between the two connecting rings. The main pipeline is connected to the top of the mist cooling component through the interface. The plurality of spray pipelines are all connected to the corresponding interfaces. The main pipeline is provided with a water inlet. The spray pipeline is provided with a plurality of spray heads along the axis.

2. The mist cooling device for large long-axis ultrafine grain alloy steel forgings according to claim 1 is characterized in that: A plurality of reinforcing ribs are arranged between the two connecting rings.

3. The mist cooling device for large long-axis ultrafine grain alloy steel forgings according to claim 1 is characterized in that: A plurality of the mist cooling components are provided, and the mist cooling mechanism further comprises an adapter, through which the respective mist cooling components are axially butted one by one.

4. The mist cooling device for large long-axis ultrafine grain alloy steel forgings according to claim 1 is characterized in that: The spray head is detachably connected to the spray pipe via a fastener.

5. The mist cooling device for large long-axis ultrafine grain alloy steel forgings according to claim 1 is characterized in that: A load-bearing beam is arranged on the top of the cooling pool, and the mist cooling mechanism is mounted on the load-bearing beam.

6. The mist cooling device for large long-axis ultrafine grain alloy steel forgings according to claim 1 or 5, characterized in that: A guardrail is provided on the top of the cooling pool.

7. The mist cooling device for large long-axis ultrafine grain alloy steel forgings as claimed in claim 1 or 5, characterized in that: A water outlet is arranged at the bottom of the cooling pool.

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