Quenching cooling device for heat treatment of steel balls

Abstract

The utility model provides a quenching cooling device for steel ball heat treatment, which comprises a soaking box, the top of the soaking box is slidably inserted with a placing frame, the bottom surface of the placing frame is provided with a leakage groove, one side of the soaking box close to the top is provided with a water inlet pipe, and the bottom of the soaking box is provided with a water outlet. A cold water tank is arranged on the outer side of the soaking tank, cold water is conveyed into a delivery pipe through a cold water pipe, so that hot water delivered out of the delivery pipe is neutralized and returns to the interior of a cooling cavity of the cold water tank, energy consumption is reduced, and compared with the prior art, an electric push rod drives a placement frame to ascend and descend, the movement force of an internal steel ball is increased; meanwhile, the water outlet and the water inlet pipe are repeatedly and intermittently opened and closed, so that the hot water part in the soaking box is sent out, and the cold water part in the soaking box is sent in, the water temperature in the soaking box cannot continuously rise, the efficient cooling effect is kept, and the complete cooling water in the soaking box can be conveniently replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel ball processing, in particular to a quenching cooling device for heat treatment of steel balls. Background Art

[0002] Steel balls are divided into grinding steel balls, forging steel balls, and casting steel balls according to the production and processing technology. According to the processing materials, they are divided into bearing steel balls, stainless steel balls, carbon steel balls, copper bearing steel balls, alloy balls, etc. Among them, bearing steel balls are important basic parts of the industry. Alloy steel balls are mainly added with metal elements such as carbon, chromium, manganese, and molybdenum. Steel balls are important basic parts. Under some special conditions, steel balls of special materials are often required to complete the functions required in different environments. After the steel balls are manufactured, they often need high-temperature quenching. Quenching is a heat treatment process. The quenching of steel is a heat treatment process in which the steel is heated to a temperature above the critical temperature Ac3 (hypoeutectoid steel) or Ac1 (hypereutectoid steel), kept warm for a period of time, so that it is fully or partially austenitized, and then cooled to below Ms (or isothermal near Ms) at a cooling rate greater than the critical cooling rate to undergo martensite (or bainite) transformation. The solid solution treatment or heat treatment process with rapid cooling process of materials such as aluminum alloy, copper alloy, titanium alloy, tempered glass is usually called quenching; the steel ball quenching on the market often involves inverting the steel balls into a bucket of water to achieve the quenching effect, but after the quenching is completed, the steel balls need to be manually salvaged, and quenching often generates a lot of heat, causing the water to boil, and there is a certain risk when manually salvaging.

[0003] Patent CN218755893U proposes a quenching cooling device for heat treatment of steel balls. Through the setting of a water spray device, the water consumed by the quenching of the steel balls in the water tank can be replenished, the content of hot water in the water tank can be diluted, and the temperature of the water in the water tank can be reduced. The water-dividing nozzle can disperse the water flow into multiple streams, thereby expanding the area of ​​the water flow, allowing the steel balls to cool down quickly, thereby achieving the quenching effect. Through the setting of several water-dividing nozzles, the water flow can be formed into a jet shape, thereby increasing the contact area between the water flow and the steel balls. Through the setting of the lifting device, the storage frame can achieve the lifting effect, and the storage frame can be placed in the storage frame. The storage frame is filled with high-temperature steel balls and, under the action of the lifting device, descends and immerses into the water tank, thereby uniformly and quickly quenching and cooling the high-temperature steel balls. After quenching and cooling, the storage frame is lifted by the lifting device to make the cooled steel balls leave the water surface for easy subsequent collection. The storage frame is bolted to the lower surface of the inner wall of the water tank so that the storage frame can achieve the effect of lifting and lowering. Through the setting of several spacers, the lower surface of the storage frame can present a hollow effect. The interval between the spacers is smaller than the diameter of the steel balls, so the steel balls will be blocked in the inner cavity of the storage frame, but the water will flow into the storage frame through the gaps between the spacers.

[0004] In the above scheme, the purpose of cooling is achieved by immersing the storage frame filled with high-temperature steel balls in a water tank. However, in this process, the water in the water tank cannot be cooled and discharged in time after absorbing heat. As the temperature in the water tank increases, the cooling effect on the steel balls in the storage frame becomes worse, thereby prolonging the cooling efficiency of the steel balls in the storage frame. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a quenching cooling device for heat treatment of steel balls to solve the problems raised in the above-mentioned background technology. The utility model has a novel structure. The placement frame is driven to rise and fall by an electric push rod to increase the activity of the internal steel balls. At the same time, the drain port and the water inlet pipe are repeatedly opened and closed intermittently, so that the hot water part in the immersion box is sent out and the cold water part is sent in, so that the water temperature inside the immersion box will not continue to rise, so as to maintain an efficient cooling effect, and the cooling water in the complete immersion box can be easily replaced.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a quenching cooling device for heat treatment of steel balls, including a immersion box, a placement frame is slidably inserted on the top of the immersion box, and a leakage groove is provided on the bottom surface of the placement frame, a water inlet pipe is provided on the side of the immersion box close to the top, a drain port is provided at the bottom of the immersion box, a cold water tank is arranged on the outside of the immersion box, and a delivery pipe is fixed between the drain port and the water inlet end of the cold water tank, a delivery pipe is fixed at the water outlet end of the cold water tank, and the other end of the delivery pipe is connected to the water inlet pipe, a first plug is sealably inserted inside the drain port, and a second plug is sealably inserted inside the water inlet pipe.

[0007] Furthermore, top plates are fixed on both sides of the placement frame, and vertical plates are fixed on the bottom of the top plates. Sliding frames are fixed on the outer wall of the immersion box at positions corresponding to the vertical plates, and the vertical plates are slidably inserted in the sliding frames.

[0008] Furthermore, an electric push rod is fixed to the outer side of the sliding frame, and a push plate is fixed to the extended end of the electric push rod, and a fixing bolt is inserted between the push plate and the top plate.

[0009] Furthermore, a spray rack is fixed on the top of the soaking box, and two rows of nozzles are evenly installed on the surface of the spray rack. A connecting pipe is fixed on one side of the spray rack, and the other end of the connecting pipe is connected to the cold water tank.

[0010] Furthermore, the soaking box is fixed with spring telescopic rods on both sides of the drain outlet, and the extended ends of the spring telescopic rods are fixedly connected to the first plugging head.

[0011] Furthermore, a return spring is fixed inside the water inlet pipe, and the return spring is fixedly connected to the tail end of the second plugging head.

[0012] Furthermore, cold water pipes are fixed on both sides of the delivery pipe, and the cold water pipes are connected to the cold water tank through a solenoid valve.

[0013] Beneficial effects of the utility model: the utility model is a quenching cooling device for heat treatment of steel balls, comprising a soaking box; a delivery pipe; a cold water pipe; an electric push rod; a push plate; a sliding frame; a drain outlet; a first plug; a spring telescopic rod; a water inlet pipe; a second plug; a reset spring; a placement frame; a drain groove; a top plate; a fixing bolt; a vertical plate; a cold water tank; a delivery pipe; a spray rack; a spray head; a connecting pipe;

[0014] 1. The utility model delivers cold water to the delivery pipe through the cold water pipe, thereby neutralizing the hot water delivered from the delivery pipe and returning it to the cooling chamber of the cold water tank, thereby saving energy consumption.

[0015] 2. The utility model drives the placement frame to move up and down through the electric push rod, and the vertical plate slides along the sliding frame to limit the placement frame, thereby increasing the fluidity of the steel balls and the fluidity of the cooling water in the placement frame and accelerating the cooling efficiency.

[0016] 3. The utility model sprays cold water into the interior of the immersion box through the connecting pipe and the nozzle, thereby further improving the cooling efficiency.

[0017] 4. Compared with the prior art, the utility model drives the placement frame to move up and down through an electric push rod, thereby increasing the activity of the internal steel ball, and repeatedly and intermittently opening and closing the drain port and the water inlet pipe, thereby sending out the hot water part of the immersion box and sending in the cold water part, so that the water temperature inside the immersion box will not continue to rise, so as to maintain an efficient cooling effect, and the cooling water in the complete immersion box can be easily replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a quenching and cooling device for heat treatment of steel balls according to the utility model;

[0019] Figure 2 This is a schematic diagram of the connection between the delivery pipe and the cold water tank of a quenching cooling device for heat treatment of steel balls according to the utility model;

[0020] Figure 3 This is a schematic diagram of the connection between a placement frame and an immersion box of a quenching cooling device for heat treatment of steel balls according to the utility model;

[0021] Figure 4 The utility model is a schematic diagram of the internal structure of a soaking box of a quenching cooling device for heat treatment of steel balls.

[0022] In the figure: 1. Soaking box; 11. Delivery pipe; 12. Cold water pipe; 13. Electric push rod; 14. Push plate; 15. Sliding frame; 16. Drain outlet; 17. First plug; 18. Spring telescopic rod; 19. Water inlet pipe; 110. Second plug; 111. Return spring; 2. Placement frame; 21. Leakage groove; 22. Top plate; 23. Fixing bolt; 24. Vertical plate; 3. Cold water tank; 31. Delivery pipe; 4. Spray rack; 41. Spray head; 42. Connecting pipe. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] See also Figures 1 to 4 The utility model provides a technical solution: a quenching cooling device for heat treatment of steel balls, comprising a soaking box 1, a placing frame 2 is slidably inserted at the top of the soaking box 1, and a drain groove 21 is provided on the bottom surface of the placing frame 2, a water inlet pipe 19 is provided on the side of the soaking box 1 close to the top, a drain port 16 is provided at the bottom of the soaking box 1, a cold water tank 3 is provided on the outside of the soaking box 1, and a delivery pipe 11 is fixed between the drain port 16 and the water inlet end of the cold water tank 3, and a delivery pipe 31 is fixed at the water outlet end of the cold water tank 3, and the delivery pipe 31 is fixed to the water outlet end of the cold water tank 3. The other end of 31 is connected to the water inlet pipe 19, and the first plug 17 is sealed and inserted inside the drain port 16, and the second plug 110 is sealed and inserted inside the water inlet pipe 19. When using the device, the placement frame 2 is installed on the top of the immersion box 1, and the steel ball is placed inside the placement frame 2. Then the placement frame 2 is immersed in the immersion box 1 to cool the steel ball. Through the reciprocating lifting and lowering movement of the placement frame 2, part of the hot water in the immersion box 1 is sent out, and cold water is partially supplemented and sent in, thereby avoiding the continuous increase of the water temperature and maintaining an efficient cooling effect.

[0025] In this embodiment, top plates 22 are fixed on both sides of the placement frame 2, and vertical plates 24 are fixed on the bottom of the top plates 22. A sliding frame 15 is fixed at a position corresponding to the vertical plates 24 on the outer wall of the immersion box 1, and the vertical plates 24 are slidably inserted into the sliding frame 15. An electric push rod 13 is fixed to the outside of the sliding frame 15, and a push plate 14 is fixed to the extended end of the electric push rod 13. A fixing bolt 23 is inserted between the push plate 14 and the top plate 22. The two ends of the placement frame 2 are installed on the push plate 14 through the top plate 22 and the fixing bolts 23, and then the vertical plates 24 are inserted into the sliding frame 15. The electric push rod 13 drives the placement frame 2 to move up and down, and the vertical plates 24 slide along the sliding frame 15 to limit the placement frame 2, thereby increasing the fluidity of the steel balls and the fluidity of the cooling water in the placement frame 2 and accelerating the cooling efficiency.

[0026] In this embodiment, a spray rack 4 is fixed on the top of the immersion box 1, and two rows of nozzles 41 are equidistantly installed on the surface of the spray rack 4. A connecting pipe 42 is fixed on one side of the spray rack 4, and the other end of the connecting pipe 42 is connected to the cold water tank 3. The spray rack 4 sprays cold water into the interior of the immersion box 1 through the connecting pipe 42 and the nozzle 41, thereby further improving the cooling efficiency.

[0027] In this embodiment, the soaking box 1 is fixed with spring telescopic rods 18 on both sides of the drain outlet 16, and the extended ends of the spring telescopic rods 18 are fixedly connected to the first plugging head 17, and a return spring 111 is fixed inside the water inlet pipe 19, and the return spring 111 is fixedly connected to the tail end of the second plugging head 110, the front end of the second plugging head 110 is a semi-sphere, and the rear end is a cylinder, and the radius of the rear end cylinder is smaller than the water inlet pipe 19, when the semi-sphere is extended into the soaking box 1 by the elastic force of the return spring 111, the water inlet pipe 19 and the soaking box 1 are in a connected state at this time, and when the placing frame 2 descends, the semi-sphere will be squeezed, so that the semi-sphere is retracted into the water inlet pipe 19 and the feed pipe 31 is blocked, thereby assembling the continued delivery of cold water, and as the placing frame 2 descends, the first plugging head 17 is squeezed, and the first plugging head 17 seals the drain outlet 16, and similarly, when the placing frame 2 moves up, the spring telescopic rod 18 drives the first plugging head 17 to move up, opens the drain outlet 16, and thus hot water is delivered.

[0028] In this embodiment, cold water pipes 12 are fixed on both sides of the delivery pipe 11, and the cold water pipes 12 are connected to the cold water tank 3 through an electromagnetic valve. Cold water is transported to the delivery pipe 11 through the cold water pipes 12, thereby neutralizing the hot water delivered from the delivery pipe 11 and returning it to the cooling chamber of the cold water tank 3, saving energy consumption.

[0029] When using the device, the two ends of the placing frame 2 are installed on the push plate 14 through the top plate 22 and the fixing bolts 23, and then the vertical plate 24 is inserted into the sliding frame 15. The electric push rod 13 drives the placing frame 2 to move up and down, and the vertical plate 24 slides along the sliding frame 15 to limit the placing frame 2, thereby increasing the fluidity of the steel balls and the fluidity of the cooling water in the placing frame 2. Through the reciprocating lifting and lowering movement of the placing frame 2, when the placing frame 2 descends, the semi-circular ball will be squeezed, so that the semi-circular ball is retracted into the water inlet pipe 19 and the delivery pipe 31 is blocked, thereby assembling the continued delivery of cold water. As the placing frame 2 descends, the first plugging head 17 is squeezed, and the first plugging head 17 seals the drain port 16. Similarly, when the placing frame 2 moves up, the spring telescopic rod 18 drives the first plugging head 17 to move up, opens the drain port 16, and thus delivers hot water, thereby avoiding the continuous increase of water temperature and maintaining an efficient cooling effect.

[0030] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A quenching and cooling device for heat treatment of steel balls, comprising an immersion box (1), characterized in that: The top of the soaking box (1) is slidably plugged with a placement frame (2), and a drain groove (21) is provided on the bottom surface of the placement frame (2); a water inlet pipe (19) is provided on a side of the soaking box (1) close to the top; a drain outlet (16) is provided at the bottom of the soaking box (1); a cold water tank (3) is arranged outside the soaking box (1), and a delivery pipe (11) is fixed between the drain outlet (16) and the water inlet end of the cold water tank (3); a delivery pipe (31) is fixed at the water outlet end of the cold water tank (3), and the other end of the delivery pipe (31) is connected to the water inlet pipe (19); a first plug (17) is sealed and plugged inside the drain outlet (16), and a second plug (110) is sealed and plugged inside the water inlet pipe (19).

2. A quenching and cooling device for heat treatment of steel balls according to claim 1, characterized in that: Top plates (22) are fixed on both sides of the placement frame (2), and vertical plates (24) are fixed on the bottom of the top plates (22). A sliding frame (15) is fixed on the outer wall of the soaking box (1) at a position corresponding to the vertical plates (24), and the vertical plates (24) are slidably inserted into the interior of the sliding frame (15).

3. A quenching and cooling device for heat treatment of steel balls according to claim 2, characterized in that: An electric push rod (13) is fixed to the outer side of the sliding frame (15), and a push plate (14) is fixed to the extended end of the electric push rod (13), and a fixing bolt (23) is inserted between the push plate (14) and the top plate (22).

4. The quenching and cooling device for heat treatment of steel balls according to claim 1, characterized in that: A spray rack (4) is fixed on the top of the soaking box (1), and two rows of spray heads (41) are evenly installed on the surface of the spray rack (4). A connecting pipe (42) is fixed on one side of the spray rack (4), and the other end of the connecting pipe (42) is connected to the cold water tank (3).

5. The quenching and cooling device for heat treatment of steel balls according to claim 1, characterized in that: The soaking box (1) is provided with spring telescopic rods (18) fixed on both sides of the drain outlet (16), and the extended ends of the spring telescopic rods (18) are fixedly connected to the first plug (17).

6. A quenching and cooling device for heat treatment of steel balls according to claim 5, characterized in that: A return spring (111) is fixed inside the water inlet pipe (19), and the return spring (111) is fixedly connected to the tail end of the second plug (110).

7. The quenching and cooling device for heat treatment of steel balls according to claim 1, characterized in that: Cold water pipes (12) are fixed on both sides of the delivery pipe (11), and the cold water pipes (12) are connected to the cold water tank (3) through a solenoid valve.

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