Steel material carburizing heat treatment device

Abstract

The utility model discloses a kind of steel carburizing heat treatment device, bottom plate, heat treatment furnace, rotating base, rotating shaft, motor, transmission sprocket set, rotating frame, lifting hydraulic cylinder, connecting frame, furnace cover, connecting rod, upper support plate, lower support plate, auxiliary support, locking nut.Compared with prior art, the utility model can set annealing and tempering equipment on left and right sides, without unloading to complete subsequent process, when carrying out carburizing treatment, parts can be placed at the other end, improve production efficiency;Setting two groups of different grid support plate, and setting auxiliary support, carburizing treatment can be carried out to the parts with square or circular shape at the same time, and carburizing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of steel processing technology, specifically to a steel carburizing heat treatment device. Background Technology

[0002] Carburizing is the process of introducing carbon atoms into the surface layer of steel. It gives low-carbon steel workpieces the surface layer of high-carbon steel. After quenching and low-temperature tempering, the surface layer of the workpiece gains high hardness and wear resistance, while the core retains the toughness and plasticity of low-carbon steel. Some steels require surface carburizing treatment after processing to obtain finished parts. Common carburizing equipment often requires manual loading and unloading before subsequent tempering and annealing. Furthermore, because different batches of parts have different shapes, different pallets need to be used for support. Utility Model Content

[0003] In view of the problems existing in the prior art, this utility model discloses a steel carburizing heat treatment device, including a base plate, a heat treatment furnace, a rotating base, a rotating shaft, a motor, a transmission sprocket assembly, a rotating frame, a lifting hydraulic cylinder, a connecting frame, a furnace cover, a connecting rod, an upper support plate, a lower support plate, an auxiliary support, and a locking nut; the heat treatment furnace is installed in the center of the upper surface of the base plate; the rotating base is installed on the upper surface of the base plate, located behind the heat treatment furnace; the motor is installed on the upper surface of the base plate, located on the left side of the rotating base; the bottom of the rotating shaft is vertically installed on the rotating base, and its top is installed in the center of the lower side of the rotating frame; the transmission sprocket assembly is respectively installed on the motor shaft and the rotating shaft, and is equipped with a chain connection; two lifting hydraulic cylinders are installed at both ends of the rotating frame, and their push rods pass through the rotating frame and are installed on the connecting frame; the furnace cover is fixedly installed on the lower side of the connecting frame, and four circular holes are evenly distributed around its circumference; the top of the connecting rod passes vertically through the circular holes and is equipped with a locking nut; the upper support plate and the lower support plate are respectively installed in the center and at the bottom of the connecting rod; the auxiliary support is installed on the upper support plate and the lower support plate.

[0004] As a preferred embodiment of this utility model, the lower half of the rotating shaft has a larger diameter than the upper half, and the top is fixedly connected to the rotating frame.

[0005] As a preferred embodiment of this utility model, both the upper support plate and the lower support plate are circular with the same outer diameter. The upper support plate is provided with a circular grid, and the lower support plate is provided with a rectangular grid.

[0006] As a preferred technical solution of this utility model, the connecting rod is divided into three sections from top to bottom, with the diameter increasing sequentially, and the outer wall of the upper end is provided with external threads.

[0007] As a preferred embodiment of this utility model, the upper support plate is positioned at the middle and lower sections, and the lower support plate is fixedly connected to the connecting rod.

[0008] As a preferred technical solution of this utility model, the auxiliary support is circular in shape, with a cross grid inside, and four hooks on the circumference that are locked in the gap between the upper support plate and the lower support plate.

[0009] The beneficial effects of this utility model are as follows: This utility model can set the annealing and tempering equipment on the left and right sides, and can complete the subsequent processes without unloading. When performing carburizing treatment, the parts can be placed at the other end to improve production efficiency. By setting two sets of support plates with different grids and setting auxiliary supports, carburizing treatment can be performed on parts with square or round shapes at the same time, thereby improving carburizing efficiency. Attached Figure Description

[0010] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0011] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0012] Figure 2 This is the left view of the present invention;

[0013] Figure 3 This is a top view of the present invention;

[0014] In the diagram: 1. Base plate; 2. Heat treatment furnace; 3. Rotating base; 4. Rotating shaft; 5. Motor; 6. Transmission sprocket assembly; 7. Rotating frame; 8. Lifting hydraulic cylinder; 9. Connecting frame; 10. Furnace cover; 11. Connecting rod; 12. Upper support plate; 13. Lower support plate; 14. Auxiliary support; 15. Locking nut. Detailed Implementation

[0015] Example 1

[0016] like Figures 1 to 3As shown, this utility model discloses a steel carburizing heat treatment device, including a base plate 1, a heat treatment furnace 2, a rotating base 3, a rotating shaft 4, a motor 5, a transmission sprocket group 6, a rotating frame 7, a lifting hydraulic cylinder 8, a connecting frame 9, a furnace cover 10, a connecting rod 11, an upper support plate 12, a lower support plate 13, an auxiliary support 14, and a locking nut 15; the heat treatment furnace 2 is installed in the center of the upper surface of the base plate 1; the rotating base 3 is installed on the upper surface of the base plate 1, located behind the heat treatment furnace 2; the motor 5 is installed on the upper surface of the base plate 1, located to the left of the rotating base 3; the bottom of the rotating shaft 4 is vertically installed on the rotating base 3. The top of the rotating frame 7 is installed at the center of its lower side; the transmission sprocket set 6 is respectively installed on the rotating shaft of motor 5 and rotating shaft 4, and is connected by a chain; the lifting hydraulic cylinder 8 is installed in pairs at both ends of the rotating frame 7, and its push rod passes through the rotating frame 7 and is installed on the connecting frame 9; the furnace cover 10 is fixedly installed on the lower side of the connecting frame 9, and has four round holes evenly distributed around its circumference; the top of the connecting rod 11 passes vertically through the round hole and is fitted with a locking nut 15; the upper support plate 12 and the lower support plate 13 are respectively installed in the center and at the bottom of the connecting rod 11; the auxiliary support 14 is installed on the upper support plate 12 and the lower support plate 13. Four workstations can be set according to the process. The rotating frame 7 can be of a straight line or a cross shape, and can complete carburizing, annealing, tempering and other processes without material feeding, improving processing efficiency. Both the upper support plate 12 and the lower support plate 13 are circular with the same outer diameter. The upper support plate 12 has a circular grid, and the lower support plate 13 has a rectangular grid, which facilitates the support of parts with circular or square shapes and improves the carburizing efficiency. The top connecting rod 11 is connected and fixed, making the overall installation and disassembly simpler and more convenient.

[0017] The working principle of this utility model is as follows: In use, the parts requiring infiltration treatment are placed on the upper support plate 12 or lower support plate 13 according to their shape. An auxiliary support 14 is installed to separate the parts, with the bottom of the parts inserted into a circular or rectangular grid. The motor 5 is then controlled to rotate, driving the rotating frame 7 to rotate via the transmission sprocket group 6, rotating the parts above the heat treatment furnace 2. Then, the lifting hydraulic cylinder 8 is controlled to extend its push rod, sending the parts from the upper support plate 12 and lower support plate 13 into the heat treatment furnace 2. After the furnace cover 10 is fastened to the heat treatment furnace 2, infiltration treatment is performed. After treatment, the lifting hydraulic cylinder 8 is controlled to retract its push rod, removing the parts. The motor 5 is then controlled to rotate the rotating frame 7 to the annealing or tempering position, allowing subsequent processing without unloading.

[0018] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A steel carburizing heat treatment apparatus, characterized in that: The system includes a base plate (1), a heat treatment furnace (2), a rotating base (3), a rotating shaft (4), a motor (5), a transmission sprocket assembly (6), a rotating frame (7), a lifting hydraulic cylinder (8), a connecting frame (9), a furnace cover (10), a connecting rod (11), an upper support plate (12), a lower support plate (13), an auxiliary support (14), and a locking nut (15). The heat treatment furnace (2) is installed in the center of the upper surface of the base plate (1). The rotating base (3) is installed on the upper surface of the base plate (1) and is located in the heat treatment furnace. The motor (5) is mounted on the upper surface of the base plate (1) and located on the left side of the rotating base (3); the bottom of the rotating shaft (4) is vertically mounted on the rotating base (3), and its top is mounted on the center of the lower side of the rotating frame (7); the transmission sprocket set (6) is mounted on the rotating shaft of the motor (5) and the rotating shaft (4) respectively, and is connected by a chain; the lifting hydraulic cylinder (8) is mounted in pairs at both ends of the rotating frame (7), and its push rod passes through the rotating frame (7) and is mounted on the connecting frame (9). Above; the furnace cover (10) is fixedly installed on the lower side of the connecting frame (9), and four round holes are evenly distributed around its circumference; The top of the connecting rod (11) passes vertically through the round hole and is fitted with a locking nut (15); the upper support plate (12) and the lower support plate (13) are respectively installed in the center and bottom of the connecting rod (11); the auxiliary support (14) is installed on the upper support plate (12) and the lower support plate (13).

2. The steel carburizing heat treatment apparatus according to claim 1, characterized in that: The lower half of the rotating shaft (4) has a larger diameter than the upper half, and its top is fixedly connected to the rotating frame (7).

3. The steel carburizing heat treatment apparatus according to claim 1, characterized in that: The upper support plate (12) and the lower support plate (13) are both circular with the same outer diameter. The upper support plate (12) has a circular grid, and the lower support plate (13) has a rectangular grid.

4. The steel carburizing heat treatment apparatus according to claim 1, characterized in that: The connecting rod (11) is divided into three sections from top to bottom, with the diameter increasing sequentially, and the outer wall of the upper end is provided with external threads.

5. The steel carburizing heat treatment apparatus according to claim 4, characterized in that: The upper support plate (12) is locked in the middle and lower sections, and the lower support plate (13) is fixedly connected to the connecting rod (11).

6. The steel carburizing heat treatment apparatus according to claim 1, characterized in that: The auxiliary support (14) is circular in shape and has a cross grid inside. It has four hooks around its circumference that fit into the gap between the upper support plate (12) and the lower support plate (13).

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