Steel casting surface quenching treatment equipment

Abstract

The utility model relates to the technical field of steel casting quenching equipment, and discloses steel casting surface quenching treatment equipment which comprises a quenching pool, quenching liquid is filled in the quenching pool, a conveying assembly is arranged in the quenching pool, and the conveying assembly comprises a conveying mesh belt arranged in the quenching pool. Chain belts are arranged on the left side and the right side of the outer wall of the conveying net belt, and supporting plates are fixed to the positions, close to the left side and the right side, of the top face of the quenching pool. According to the steel casting quenching device, steel castings needing to be quenched can be continuously conveyed into the quenching pool to be quenched by arranging the conveying mesh belt, and when different steel castings are quenched, in order to ensure that the steel castings are maintained at the optimal quenching time, the conveying mesh belt can be respectively retracted and released by driving the two abutting seats; the height of the conveying mesh belt immersed in quenching liquid is adjusted, so that the quenching time of the conveyed steel casting is changed, meanwhile, the normal conveying speed of the steel casting is not influenced, and the quenching effect on the steel casting and the production speed of the steel casting are guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of quenching equipment for cast steel parts, and in particular to a surface quenching treatment device for cast steel parts. Background Technology

[0002] Cast steel parts refer to parts made of cast steel. In the production process of cast steel parts, quenching is an essential step. Different steels have different carbon contents and alloy elements, and therefore different critical cooling rates and quenching temperatures. High carbon steel or alloy steel has higher requirements for quenching time and cooling rate.

[0003] An existing quenching device for cast steel parts (publication number: CN212560359U) has at least the following drawbacks: when quenching different cast steel parts, the device can only increase or decrease the quenching time of the cast steel parts by adjusting the conveyor belt speed. This affects the overall conveying speed of the cast steel parts and causes the cooling of the cast steel parts to be delayed. The material may undergo pearlite or bainite transformation instead of forming ideal martensite, thus failing to achieve the expected performance. Therefore, this utility model is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a surface quenching treatment device for cast steel parts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A surface quenching treatment device for cast steel parts includes a quenching tank filled with quenching liquid. A conveying assembly is installed inside the quenching tank, comprising a conveyor belt inside the tank. Chains are installed on the left and right sides of the outer wall of the conveyor belt. Support plates are fixed to the top surface of the quenching tank near both sides. A bidirectional screw is rotatably connected between the support plates and the bottom surface of the quenching tank. Two abutment seats are rotatably connected to the outer wall of the bidirectional screw. Two abutment sprockets are rotatably connected to one side of each abutment seat. Two abutment sprockets abut and engage with the top surface of the chain of the conveyor belt, while the other two abutment sprockets abut and engage with the bottom surface of the chain of the conveyor belt.

[0007] As a further embodiment of this utility model, two support shafts are rotatably connected to the front and rear sides of the quenching tank. Two support sprockets are fixed to the outer wall of the support shafts. Four corresponding support sprockets abut and mesh with the inner top surface of the conveyor belt, and the other four support sprockets abut and mesh with the bottom surface of the conveyor belt. Drive frames are fixed to both the front and rear sides of the quenching tank. Drive shafts are rotatably connected inside the drive frames. Two drive sprockets are fixed to the outer wall of the drive shafts. The drive sprockets mesh with the conveyor belt. A first motor is fixed to the top surface of the support plate. The output shaft end of the first motor is fixed to the top end of the bidirectional lead screw. A second motor is fixed to the left side of the drive frame. The output shaft of the second motor is fixed to the left end of the drive shaft.

[0008] As a further embodiment of this utility model, two limiting rods are fixed between the support plate and the inner bottom surface of the quenching pool, and the abutment seat is slidably disposed on the outer wall of the limiting rods.

[0009] As a further embodiment of this utility model, a number of baffles are fixed on the outer wall of the internal support roller of the conveyor belt.

[0010] As a further embodiment of this utility model, a support frame is provided on the top surface of the quenching pool, the support frame is fixed to two support plates, and a condensation mesh is fixed on the inner wall of the support frame.

[0011] As a further embodiment of this invention, the top surface of the condensation mesh is recessed downwards at the middle.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By setting up a conveyor belt, cast steel parts that need to be quenched can be continuously transported to the quenching tank for quenching. When quenching different cast steel parts, in order to ensure that the cast steel parts are kept at the optimal quenching time, the two abutment seats can be driven to raise and lower the conveyor belt respectively, thereby adjusting the height of the conveyor belt immersed in the quenching liquid. This changes the quenching time of the transported cast steel parts without affecting the normal transport speed of the cast steel parts, ensuring the quenching effect and production speed of the cast steel parts, and avoiding the transformation of the material into pearlite or bainite. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a surface quenching treatment device for cast steel parts proposed in this utility model;

[0015] Figure 2 This is a three-dimensional disassembled structural diagram of a surface quenching treatment device for cast steel parts proposed in this utility model;

[0016] Figure 3This is a three-dimensional structural diagram of the contact seat of a surface quenching treatment device for cast steel parts proposed in this utility model;

[0017] Figure 4 for Figure 3 A magnified schematic diagram of the partial three-dimensional structure of A.

[0018] In the diagram: 1. Quenching tank; 2. Conveyor belt; 201. Support plate; 202. Bidirectional lead screw; 203. Abutment seat; 204. Abutment sprocket; 205. Support shaft; 206. Support sprocket; 207. Drive frame; 208. Drive shaft; 209. Drive sprocket; 3. Limiting rod; 4. Stop bar; 5. Support frame; 501. Condensation mesh. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1-4As shown, a surface quenching treatment device for cast steel parts includes a quenching tank 1, which is filled with quenching liquid. A conveying assembly is provided inside the quenching tank 1. The conveying assembly includes a conveyor belt 2 installed inside the quenching tank 1. Chain belts are provided on the left and right sides of the outer wall of the conveyor belt 2. Support plates 201 are fixed to the top surface of the quenching tank 1 near the left and right sides. A bidirectional screw 202 is rotatably connected between the support plate 201 and the inner bottom surface of the quenching tank 1. Two abutment seats 203 are rotatably connected to the outer wall of the bidirectional screw 202. Two abutment sprockets 204 are rotatably connected to one side of the abutment seat 203. Two abutment sprockets 204 abut against and engage with the top surface of the chain belt of the conveyor belt 2, and the other two abutment sprockets 204 abut against and engage with the inner bottom surface of the chain belt of the conveyor belt 2.

[0023] like Figures 2-4 As shown, in this embodiment, two support shafts 205 are rotatably connected to the front and rear sides of the quenching tank 1. Two support sprockets 206 are fixed to the outer wall of the support shafts 205. Four of the support sprockets 206 abut and mesh with the inner top surface of the conveyor belt 2, and the other four support sprockets 206 abut and mesh with the bottom surface of the conveyor belt 2. Drive frames 207 are fixed to both the front and rear sides of the quenching tank 1. Drive shafts 208 are rotatably connected inside the drive frames 207. Two drive sprockets 209 are fixed to the outer wall of the drive shafts 208. The drive sprockets 209 mesh with the conveyor belt 2. A first motor is fixed to the top surface of the support plate 201. The output shaft of the first motor is fixed to the top end of the bidirectional lead screw 202. A second motor is fixed to the left side of the drive frame 207. The output shaft of the second motor is fixed to the left end of the drive shaft 208. By starting the first motor, the bidirectional lead screw 202 is driven to rotate, causing the bidirectional lead screw 202 to rotate. The two abutment seats 203 on 02 move closer or further apart. Since the corresponding two abutment sprockets 204 abut and engage with the top surface of the conveyor belt 2, and the other two abutment sprockets 204 abut and engage with the inner bottom surface of the conveyor belt 2, when the abutment sprockets 204 on the top surface of the conveyor belt 2 are pressed down, the abutment sprockets 204 on the inner top surface of the conveyor belt 2 move upwards to release the conveyor belt 2, causing the top surface of the conveyor belt 2 to move towards the interior of the quenching pool 1. Conversely, when the conveyor belt moves downwards... When the abutting sprocket 204 on the top surface of the conveyor belt 2 moves upward to release the conveyor belt 2, the abutting sprocket 204 on the top surface inside the conveyor belt 2 moves downward, causing the top surface of the conveyor belt 2 to move towards the top surface of the quenching pool 1. This adjusts the depth at which the top surface of the conveyor belt 2 is submerged in the quenching liquid in the quenching pool 1, thereby changing the quenching time of the conveyed cast steel parts. At the same time, it does not affect the normal conveying speed and quenching speed of the cast steel parts, ensuring the quenching effect and production speed of the cast steel parts.

[0024] like Figures 2-4As shown in this embodiment, two limiting rods 3 are fixed between the support plate 201 and the inner bottom surface of the quenching pool 1. The abutment seat 203 is slidably disposed with the outer wall of the limiting rods 3. By setting the limiting rods 3, the movement of the abutment seat 203 can be limited and supported.

[0025] like Figures 2-4 As shown in this embodiment, several baffles 4 are fixed on the outer wall of the internal support roller of the conveyor belt 2. During quenching, the cast steel parts are placed between the baffles 4 to isolate the cast steel parts and prevent them from contacting each other and affecting the quenching effect.

[0026] like Figures 2-4 As shown in this embodiment, a support frame 5 is provided on the top surface of the quenching pool 1. The support frame 5 is fixed to two support plates 201. A condensation mesh 501 is fixed on the inner wall of the support frame 5. By setting the condensation mesh 501, when water vapor is generated during the quenching of the cast steel parts, the condensation mesh 501 can intercept the water vapor and make the water vapor condense into water droplets and be recycled back into the quenching pool 1, thereby reducing the waste of water resources.

[0027] like Figures 2-4 As shown, in this embodiment, the top surface of the condenser mesh 501 is concave downwards in the middle. By setting the top surface of the condenser mesh 501 to be concave downwards in the middle, the condensate can drip from the center of the condenser mesh 501, thus preventing water from dripping onto the first motor and causing damage.

[0028] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: In use, before quenching the cast steel parts, the first motor is started to drive the bidirectional lead screw 202 to rotate, so that the two abutment seats 203 on the bidirectional lead screw 202 move closer or further apart. Since the corresponding two abutment sprockets 204 abut and engage with the top surface of the conveyor belt 2, and the other two abutment sprockets 204 abut and engage with the inner bottom surface of the conveyor belt 2, when the abutment sprocket 204 on the top surface of the conveyor belt 2 is pressed down, the abutment sprocket 204 on the inner top surface of the conveyor belt 2 moves upward to release the conveyor belt 2, so that the top surface of the conveyor belt 2 moves into the quenching pool 1. Conversely, when the abutment sprocket 204 on the top surface of the conveyor belt 2 is pressed down, the abutment sprocket 204 on the inner top surface of the conveyor belt 2 moves upward to release the conveyor belt 2, so that the top surface of the conveyor belt 2 moves into the quenching pool 1. When conveyor belt 2 moves upward to release the conveyor belt 2, the abutting sprocket 204 on the top surface of the conveyor belt 2 moves downward, causing the top surface of the conveyor belt 2 to move towards the top surface of the quenching pool 1. This adjusts the depth of the top surface of the conveyor belt 2 submerged in the quenching liquid in the quenching pool 1, thus changing the quenching time of the conveyed cast steel parts. At the same time, it does not affect the normal conveying speed and quenching speed of the cast steel parts, ensuring the quenching effect and production speed of the cast steel parts. During quenching, the cast steel parts are placed between the baffles 4 to isolate them and prevent them from contacting each other and affecting the quenching effect. Then, the second motor is started to drive the drive shaft 208 and drive sprocket 209 to rotate, thereby driving the conveyor belt 2 to move. Subsequently, the cast steel parts are continuously fed into the quenching liquid for quenching.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A surface quenching treatment device for cast steel parts, comprising a quenching tank (1), characterized in that, The quenching pool (1) is filled with quenching liquid. A conveying assembly is provided inside the quenching pool (1). The conveying assembly includes a conveyor belt (2) installed inside the quenching pool (1). Chain belts are provided on the left and right sides of the outer wall of the conveyor belt (2). Support plates (201) are fixed on the top surface of the quenching pool (1) near the left and right sides. A two-way screw (202) is rotatably connected between the support plate (201) and the inner bottom surface of the quenching pool (1). Two abutment seats (203) are rotatably connected to the outer wall of the two-way screw (202). Two abutment sprockets (204) are rotatably connected to one side of the abutment seat (203). Two abutment sprockets (204) abut and mesh with the top surface of the chain belt of the conveyor belt (2). The other two abutment sprockets (204) abut and mesh with the inner bottom surface of the chain belt of the conveyor belt (2).

2. The surface quenching treatment equipment for cast steel parts according to claim 1, characterized in that, The quenching tank (1) has two support shafts (205) rotatably connected to its front and rear sides. Two support sprockets (206) are fixed to the outer wall of each support shaft (205). Four of the support sprockets (206) abut and mesh with the top surface of the conveyor belt (2), and the other four support sprockets (206) abut and mesh with the bottom surface of the conveyor belt (2). Drive frames (207) are fixed to both the front and rear sides of the quenching tank (1). The drive shaft (208) is internally rotatably connected to the drive frame (207). Two drive sprockets (209) are fixed on the outer wall of the drive shaft (208). The drive sprockets (209) mesh with the chain of the conveyor belt (2). The first motor is fixed on the top surface of the support plate (201). The output shaft end of the first motor is fixed to the top end of the bidirectional lead screw (202). The second motor is fixed on the left side of the drive frame (207). The output shaft of the second motor is fixed to the left end of the drive shaft (208).

3. The surface quenching treatment equipment for cast steel parts according to claim 2, characterized in that, Two limiting rods (3) are fixed between the support plate (201) and the inner bottom surface of the quenching pool (1), and the abutment seat (203) is slidably disposed on the outer wall of the limiting rods (3).

4. The surface quenching treatment equipment for cast steel parts according to claim 3, characterized in that, The outer wall of the internal support roller of the conveyor belt (2) is fixed with several baffles (4).

5. The surface quenching treatment equipment for cast steel parts according to claim 4, characterized in that, The top surface of the quenching pool (1) is provided with a support frame (5), which is fixed to two support plates (201). A condensation mesh (501) is fixed to the inner wall of the support frame (5).

6. The surface quenching treatment equipment for cast steel parts according to claim 5, characterized in that, The top surface of the condenser mesh (501) is concave downwards at the middle.

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