Whole plate type partition flow guide baffle device for vertical vacuum oil quenching furnace

Abstract

The invention discloses a whole plate type partition flow guide baffle device for a vertical vacuum oil quenching furnace, which comprises two first baffles and two second baffles which are symmetrically arranged in a quenching tank, and a plurality of stirring motors which are symmetrically arranged on the quenching tank, and the output end of each stirring motor is provided with a turning device; the stirring motor drives the mounting plates, the air cylinders and the impellers to rotate integrally through the direction changing devices, and meanwhile the air cylinders drive the impellers to do reciprocating telescopic motion in the cylinder, so that the stirring motor drives the impellers to do reciprocating telescopic motion in the cylinder; and a rotary and axial reciprocating composite motion mode is formed, so that the impeller moves up and down while rotating, the coverage range of the stirring effect in the vertical direction is remarkably expanded, strong convection of quenching oil in a three-dimensional space is promoted, and the heat exchange efficiency and the cooling capacity of the oil are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum oil quenching furnaces, in particular to a whole-plate type partitioned flow guide baffle device for a vertical vacuum oil quenching furnace. Background Art

[0002] Vacuum oil quenching furnaces are key equipment used in modern heat treatment for quenching high-precision workpieces (such as die steel, high-speed steel, and bearing steel). By performing heating and oil quenching in a vacuum environment, they effectively prevent workpiece oxidation and decarburization, ensuring material properties and surface quality. In vertical vacuum oil quenching furnaces, the uniformity of the quenching oil flow directly affects the uniformity of workpiece cooling, which in turn determines the stability and consistency of heat treatment quality.

[0003] Most existing vertical vacuum oil quenching furnaces use stirring devices installed on the bottom or side walls to drive the circulation of quenching oil. Traditional stirring methods have problems such as uneven oil flow distribution, poor fluidity in local areas, and inconsistent cooling speeds. In order to improve the oil flow state, some equipment introduces a guide plate structure to guide the oil flow direction. However, most existing guide devices are fixed structures and cannot adjust the oil flow area and flow intensity according to working conditions. In addition, the stirring range is limited, making it difficult to achieve sufficient disturbance in three-dimensional space. Summary of the Invention

[0004] In response to the technical problems existing in the prior art, the present invention provides a whole-plate partitioned guide baffle device for a vertical vacuum oil quenching furnace, which solves the problem that most existing vertical vacuum oil quenching furnaces use a stirring device installed at the bottom or side wall to drive the circulation of quenching oil. The traditional stirring method has problems such as uneven oil flow distribution, poor fluidity in local areas, and inconsistent cooling speed. In order to improve the oil flow state, some equipment introduces a guide plate structure to guide the oil flow direction. However, most existing guide devices are fixed structures, which cannot adjust the oil flow area and flow intensity according to working conditions, and the stirring range is limited, making it difficult to achieve sufficient disturbance in three-dimensional space.

[0005] To achieve the above-mentioned objectives, the present invention provides a whole-plate partitioned guide baffle device for a vertical vacuum oil quenching furnace, comprising two No. 1 baffles and two No. 2 baffles symmetrically arranged in the quenching tank, comprising a plurality of stirring motors symmetrically installed on the quenching tank, each of the stirring motors having a converter provided at the output end, each of the converters having a mounting plate provided, each of the mounting plates having a cylinder fixedly mounted thereon, each of the cylinders having a telescopic end fixedly connected thereto with an impeller, and the two No. 1 baffles and the No. 2 baffles being mounted on the inner wall of the quenching tank through a plurality of sets of fixing components.

[0006] Preferably, the two No. 1 baffles are symmetrically provided with circular openings, a cylinder is welded on the inner wall of each circular opening, and each impeller is arranged in the cylinder.

[0007] Preferably, each group of the fixing components includes a fixing seat, a support rod and a mounting seat, each of the fixing seats is fixedly connected to the inner wall of the quenching tank, and multiple mounting seats are respectively fixedly connected to the outer walls of the corresponding baffle No. 1 and baffle No. 2, and each support rod is arranged between the corresponding fixing seat and the mounting seat.

[0008] Preferably, the two baffles No. 1 and No. 2 are alternately arranged, and the baffles No. 1 and No. 2 are integral plate structures, which divide the oil into two inner and outer areas, thereby increasing the flow range of the oil.

[0009] Preferably, the fixing assembly is used to fix baffle No. 1 and baffle No. 2 on the inner wall of the quenching tank, the fixing seat is provided with a mounting hole, the mounting hole is a threaded structure, and one end of the support rod with a thread is threadedly connected to the mounting hole.

[0010] Preferably, the mounting seat is provided with a through hole, and one end of the support rod facing away from the fixing seat passes through the through hole, and the support rod is mounted to the mounting seat via a fastener.

[0011] Preferably, the mounting seats are evenly distributed and welded at the edges of baffle No. 1 and baffle No. 2 to ensure the entire plate structure of baffle No. 1 and baffle No. 2, increase the support points for installation and fixation, and facilitate the fixation of baffle No. 1 and baffle No. 2 of the entire plate structure.

[0012] Compared with the prior art, the present invention has the following beneficial effects: By setting up the whole-plate No. 1 baffle and No. 2 baffle and adopting an alternating symmetrical arrangement, the oil cavity in the quenching tank is effectively divided into two areas, the inner and outer areas, which significantly increases the flow path and disturbance range of the oil, avoids local oil flow short circuit or stagnation, and enables the workpiece to obtain a more uniform cooling effect in both the circumferential and axial directions, effectively reducing quenching deformation and tissue stress, and improving the consistency of product heat treatment quality.

[0013] The stirring motor drives the mounting plate, cylinder and impeller to rotate as a whole through the inverter. At the same time, the cylinder drives the impeller to perform reciprocating telescopic motion in the cylinder, forming a compound motion mode of rotation and axial reciprocating, so that the impeller moves up and down while rotating, significantly expanding the coverage of the stirring action in the vertical direction, promoting strong convection of the quenching oil in three-dimensional space, and greatly improving the heat exchange efficiency and cooling capacity of the oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A top view of the present invention; Figure 3 Schematic diagram of the structure of the impeller in the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the structure from another angle; Figure 5 This is an enlarged view of point A in the present invention; Figure 6 It is a structural schematic diagram of the cylinder and impeller in the present invention.

[0015] The meaning of each number in the figure is: 1. Baffle No. 1; 2. Baffle No. 2; 3. Stirring motor; 4. Direction changer; 5. Mounting plate; 6. Cylinder; 7. Impeller; 8. Cylinder; 9. Fixing assembly; 901. Fixing seat; 902. Support rod; 903. Mounting seat; 904. Fastener. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figures 1-6 This embodiment provides a whole-plate partitioned flow guide baffle device for a vertical vacuum oil quenching furnace, comprising two first baffles 1 and two second baffles 2 symmetrically arranged in a quenching tank. Considering that most existing vertical vacuum oil quenching furnaces use stirring devices mounted on the bottom or sidewall to drive the circulation of quenching oil, traditional stirring methods suffer from problems such as uneven oil flow distribution, poor fluidity in local areas, and inconsistent cooling rates. To improve the oil flow state, some equipment introduces a guide plate structure to guide the oil flow direction. However, most existing flow guide devices are fixed structures and cannot adjust the oil flow area and flow intensity according to operating conditions. In addition, the stirring range is limited, making it difficult to achieve sufficient disturbance in three-dimensional space. The device comprises multiple stirring motors 3 symmetrically mounted on the quenching tank. Each stirring motor 3 has a direction changer 4 provided at its output end. Each direction changer 4 is provided with a mounting plate 5. Each mounting plate 5 has a cylinder 6 fixedly mounted thereon. The telescopic end of each cylinder 6 is fixedly connected to an impeller 7. The two first baffles 1 and the second baffle 2 are each mounted on the inner wall of the quenching tank via multiple sets of fixing components 9.

[0018] In summary, the improvements of this embodiment are: By setting up the whole-plate baffle No. 1 and baffle No. 2, the oil chamber in the quenching tank is effectively divided into two areas, the inner and outer areas, which significantly increases the flow path and disturbance range of the oil, avoids local oil flow short circuit or stagnation, and enables the workpiece to obtain a more uniform cooling effect in both the circumferential and axial directions, effectively reduces quenching deformation and tissue stress, and improves the consistency of product heat treatment quality; the stirring motor 3 drives the mounting plate 5, cylinder 6 and impeller 7 to rotate as a whole through the inverter 4, and at the same time, the cylinder 6 drives the impeller 7 to perform reciprocating telescopic motion in the cylinder, forming a composite motion mode of rotation and axial reciprocating, so that the impeller 7 moves up and down while rotating, significantly expanding the coverage of the stirring action in the vertical direction, promoting strong convection of the quenching oil in three-dimensional space, and greatly improving the heat exchange efficiency and cooling capacity of the oil.

[0019] On the basis of the above, other structures need to be disclosed in detail, such as: See also Figures 1-6 In order to enable the impeller 7 to make the quenching oil flow from top to bottom, the two No. 1 baffles 1 are symmetrically opened with circular openings, and a cylinder 8 is welded on the inner wall of each circular opening. Each impeller 7 is set in the cylinder 8, and the impeller 7 moves up and down in the cylinder 8, so that the quenching oil flows from top to bottom.

[0020] See also Figure 4 and Figure 5 In order to fix the No. 1 baffle 1 and the No. 2 baffle 2, each set of fixing components 9 includes a fixing seat 901, a support rod 902 and a mounting seat 903. Each fixing seat 901 is fixedly connected to the inner wall of the quenching tank. Multiple mounting seats 903 are respectively fixedly connected to the outer side walls of the corresponding No. 1 baffle 1 and the No. 2 baffle 2. Each support rod 902 is arranged between the corresponding fixing seat 901 and the mounting seat 903. The fixing assembly 9 is used to fix the No. 1 baffle 1 and the No. 2 baffle 2 on the inner wall of the quenching tank. The fixing seat 901 is provided with a mounting hole. The mounting hole is a threaded structure, and one end of the support rod 902 with a thread is threadedly connected to the mounting hole. The mounting seat 903 is provided with a through hole. The end of the support rod 902 facing away from the fixing seat 901 passes through the through hole. The support rod 902 is installed with the mounting seat 903 through the provided fastener 904. The one end of the support rod 902 with a thread is threadedly connected to the mounting hole of the fixing seat 901, and the other end of the support rod 902 passes through the light hole and is fixedly mounted on the mounting seat 903 through the fastener 904, and then the No. 1 baffle 1 and the No. 2 baffle 2 are installed in the quenching cylinder.

[0021] See also Figures 1-4In order to increase the flow path of the quenching oil, the two baffles No. 1 and No. 2 are arranged alternately. The baffle No. 1 and No. 2 are whole-plate structures, which divide the oil into two inner and outer areas, increasing the flow range of the oil. The baffle No. 1 and No. 2 are arranged alternately and symmetrically, which effectively divides the oil cavity in the quenching tank into two inner and outer areas, significantly increasing the flow path and disturbance range of the oil, avoiding local oil flow short circuit or stagnation, and making the workpiece obtain a more uniform cooling effect in both the circumferential and axial directions, effectively reducing quenching deformation and tissue stress, and improving the consistency of product heat treatment quality.

[0022] See also Figure 4 and Figure 5 In order to improve the stability of the overall installation of baffle No. 1 and baffle No. 2, the mounting seats 903 are evenly distributed and welded at the edge positions of baffle No. 1 and baffle No. 2, ensuring the entire plate structure of baffle No. 1 and baffle No. 2, increasing the support points for installation and fixing, and facilitating the fixation of baffle No. 1 and baffle No. 2 of the entire plate structure.

[0023] In summary, the working principle of this solution is as follows: One end of the support rod 902 with a thread is threadedly connected to the mounting hole of the fixing seat 901, and the other end of the support rod 902 passes through the light-through hole and is fixed to the mounting seat 903 by a fastener 904, and then the No. 1 baffle 1 and the No. 2 baffle 2 are installed in the quenching cylinder. The No. 1 baffle 1 and the No. 2 baffle 2 divide the quenching oil into two parts. By starting the stirring motor 3, the stirring motor 3 drives the mounting plate 5, the cylinder 6 and the impeller 7 to rotate through the inverter 4. The rotation of the impeller 7 can stir the quenching oil, and the cylinder 6 is started. The telescopic end of the cylinder 6 drives the impeller 7 to move up and down repeatedly. The oil on both sides of the No. 1 baffle 1 moves up and down and the rotating impeller 7 flows from top to bottom, realizing a larger range of flow in the vertical direction, thereby ensuring uniform cooling of the product.

[0024] It is worth noting that the entire device is controlled by a controller. Since the controller is a commonly used device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0025] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A whole plate type partitioned guide baffle device for a vertical vacuum oil quenching furnace, comprising two No. 1 baffles (1) and two No. 2 baffles (2) symmetrically arranged in a quenching tank, characterized in that: The invention comprises a plurality of stirring motors (3) symmetrically mounted on a quenching tank, wherein the output end of each stirring motor (3) is provided with a direction changer (4), each direction changer (4) is provided with a mounting plate (5), each mounting plate (5) is fixedly mounted with a cylinder (6), the telescopic end of each cylinder (6) is fixedly connected with an impeller (7), and the two first baffles (1) and the second baffle (2) are both mounted on the inner wall of the quenching tank via a plurality of sets of fixing components (9).

2. The whole plate type partitioned guide baffle device for a vertical vacuum oil quenching furnace according to claim 1 is characterized in that: The two No. 1 baffles (1) are symmetrically provided with circular openings, a cylinder (8) is welded to the inner wall of each circular opening, and each impeller (7) is arranged in the cylinder (8).

3. The whole plate type partitioned guide baffle device for a vertical vacuum oil quenching furnace according to claim 1 is characterized in that: Each set of the fixing components (9) comprises a fixing seat (901), a support rod (902) and a mounting seat (903); each fixing seat (901) is fixedly connected to the inner wall of the quenching tank; a plurality of mounting seats (903) are respectively fixedly connected to the outer side walls of the corresponding first baffle (1) and second baffle (2); and each support rod (902) is arranged between the corresponding fixing seat (901) and the mounting seat (903).

4. The whole plate type partitioned guide baffle device for a vertical vacuum oil quenching furnace according to claim 1 is characterized in that: The two baffles No. 1 (1) and No. 2 (2) are alternately arranged. The baffle No. 1 (1) and No. 2 (2) are integral plate structures, which divide the oil into two inner and outer areas, thereby increasing the flow range of the oil.

5. The whole plate type partitioned guide baffle device for a vertical vacuum oil quenching furnace according to claim 3, characterized in that: The fixing assembly (9) is used to fix the first baffle (1) and the second baffle (2) on the inner wall of the quenching tank. The fixing seat (901) is provided with a mounting hole, and the mounting hole is a threaded structure. One end of the support rod (902) with a thread is threadedly connected to the mounting hole.

6. The whole plate type partitioned guide baffle device for a vertical vacuum oil quenching furnace according to claim 5, characterized in that: The mounting seat (903) is provided with a through hole, and one end of the support rod (902) facing away from the fixing seat (901) passes through the through hole. The support rod (902) is mounted on the mounting seat (903) via a fastener (904).

7. The whole plate type partitioned guide baffle device for a vertical vacuum oil quenching furnace according to claim 6, characterized in that: The mounting seats (903) are evenly distributed and welded at the edge positions of the No. 1 baffle (1) and the No. 2 baffle (2), ensuring the whole plate structure of the No. 1 baffle (1) and the No. 2 baffle (2), increasing the support points for installation and fixing, and facilitating the fixing of the No. 1 baffle (1) and the No. 2 baffle (2) of the whole plate structure.

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