Single-chamber high-pressure vacuum air quenching furnace capable of being uniformly heated

Abstract

The utility model discloses a single chamber high pressure vacuum air quenching furnace that can be heated evenly relates to high pressure air quenching furnace technical field, including high pressure vacuum air quenching furnace, the top of high pressure vacuum air quenching furnace is equipped with the air inlet, and the bottom one side of high pressure vacuum air quenching furnace is equipped with the collection box, and one side of high pressure vacuum air quenching furnace is equipped with the driving part. This single chamber high pressure vacuum air quenching furnace that can be heated evenly, through the periodic rotation of driving material frame and workpiece, makes workpiece each surface alternately expose to heat source, effectively improves the heating uniformity of workpiece, and according to the different size of workpiece, multiple limit is carried out to workpiece, avoids the material frame to fall off when rotating, workpiece, influences the efficiency of work, and the rotational kinetic energy of transmission board is converted into the linear cleaning action of cleaning scraper, can carry out automatic cleaning to the surface scale or quenching residual of blanking station, and the cleaning scraper is subjected to the elastic action of reset spring, can be reset automatically, effectively improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure gas quenching furnace technology, specifically a single-chamber high-pressure vacuum gas quenching furnace that can be uniformly heated. Background Technology

[0002] A high-pressure gas quenching furnace is a heat treatment device that rapidly cools metal workpieces in a vacuum environment using a high-pressure inert gas (such as nitrogen). It is mainly used for non-oxidizing quenching treatment of materials such as tool steel, die steel, and high-speed steel.

[0003] In high-pressure gas quenching furnaces, the placement of workpieces directly affects the uniformity of heating. Traditional high-pressure gas quenching furnaces often use static placement, leading to localized temperature differences due to heat source radiation and airflow distribution, especially for large or irregularly shaped workpieces, thus affecting the uniformity of heating. Existing technology (Chinese patent application CN202323258079.1, filed on 2023-11-30) describes a single-chamber vacuum high-pressure gas quenching furnace with a rotatable rack. During use, it includes a high-pressure gas quenching furnace body, a cover plate on the right side of the furnace body, and support legs fixedly connected to the bottom of the furnace body. An air inlet is fixedly connected to the top of the furnace body. A movable flipping mechanism is installed inside the high-pressure gas quenching furnace body. An auxiliary clamping mechanism is installed on the right side of the movable flipping mechanism. During use, the motor works to make the limiting frame move inside the high-pressure gas quenching furnace body. In conjunction with the first toothed plate, it facilitates the workpiece to rotate in a circle around the first gear column as the axis. The movement of the support seat causes the first bevel gear to move. In conjunction with the support seat, it facilitates the workpiece to rotate in a circle around the second bevel gear as the axis. The rotation of the bidirectional threaded rod, in conjunction with the limiting rod, causes the movable plate to move, thereby causing the clamping block to move, which can easily meet the clamping needs of workpieces of different sizes.

[0004] Although existing technologies can improve the heating efficiency of workpieces, the material rack usually adopts a fixed structure during operation, which makes it inconvenient to quickly disassemble and assemble the material rack. In addition, the oxide scale or quenching residue generated by the workpiece during high-pressure gas quenching will fall to the bottom of the furnace and need to be cleaned manually at regular intervals, which is inconvenient. Utility Model Content

[0005] The purpose of this invention is to provide a single-chamber high-pressure vacuum quenching furnace that can be heated uniformly, in order to solve the problems mentioned in the background art, such as the inconvenience of quickly disassembling and assembling the material rack and the need for manual cleaning of oxide scale or quenching residue at regular intervals.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a single-chamber high-pressure vacuum quenching furnace capable of uniform heating, comprising a high-pressure vacuum quenching furnace, wherein an air inlet is provided at the top of the high-pressure vacuum quenching furnace and a collection box is provided on one side of the bottom of the high-pressure vacuum quenching furnace.

[0007] The high-pressure vacuum quenching furnace has a drive unit on one side and a material rack inside. The drive unit acts on the material rack to realize the periodic flipping of the workpiece.

[0008] The material rack has a first limiting component and a second limiting component on one side. The first limiting component includes a first limiting plate, which cooperates with the material rack to limit the workpiece. The second limiting component includes a second limiting plate, which cooperates with the material rack to limit the workpiece.

[0009] A transmission plate is fixedly connected to the bottom surface of the material rack, and a cleaning component is provided inside the high-pressure vacuum quenching furnace. The cleaning component includes a cleaning scraper, and the transmission plate cooperates with the cleaning scraper to achieve the cleaning work.

[0010] Furthermore, the driving component includes a geared motor fixedly connected to one side surface of the high-pressure vacuum quenching furnace, a rotating rod fixedly connected to the output end of the geared motor, a connecting block fixedly connected to the outer wall of the rotating rod, and the connecting block and the geared motor forming a rotating mechanism through the rotating rod.

[0011] Furthermore, a fixing bolt is provided on one side of the connecting block, and fixing holes with internal dimensions and external dimensions of the fixing bolt are provided on one side surface of both the connecting block and the material rack.

[0012] Furthermore, the first limiting component includes a first adjusting screw threaded to one side surface of the material rack, one end of the first adjusting screw being rotatably connected to a first limiting plate, the first limiting plate being L-shaped, and one side surface of the first limiting plate being fixedly connected to a first guide rod, of which two first guide rods are provided.

[0013] Furthermore, the second limiting component includes a second adjusting screw threaded to one side surface of the first limiting plate, one end of the second adjusting screw being rotatably connected to the second limiting plate, and a second guide rod being fixedly connected to one side surface of the second limiting plate, with a total of two second guide rods.

[0014] Furthermore, the cleaning assembly includes a third guide rod fixedly connected to one side of the inner wall of the high-pressure vacuum quenching furnace. There are two third guide rods in total, and a cleaning scraper is slidably installed on the outer wall of the third guide rod. The top of the cleaning scraper is provided with a slope, and the bottom of the transmission plate is provided with a slope. A return spring is provided between the cleaning scraper and the high-pressure vacuum quenching furnace.

[0015] Furthermore, the top of the collection box is provided with a material discharge platform, both ends of which are provided with material discharge troughs, and the top surface of the material discharge platform is in close contact with the cleaning scraper.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the single-chamber high-pressure vacuum quenching furnace that can be uniformly heated adopts a novel structural design, the specific details of which are as follows: (1) The single-chamber high-pressure vacuum quenching furnace that can be uniformly heated is equipped with a transmission plate and a cleaning component. As the material rack rotates, the rotational kinetic energy of the transmission plate is converted into the linear cleaning action of the cleaning scraper to clean the oxide scale or quenching residue on the surface of the material drop table. The cleaning scraper is subjected to the elastic action of the reset spring and can automatically reset, thereby realizing the automatic cleaning of oxide scale or quenching residue and effectively improving work efficiency.

[0017] (2) The single-chamber high-pressure vacuum quenching furnace that can be uniformly heated is equipped with a first limiting component and a second limiting component. According to the different sizes of the workpiece, the first limiting plate and the material rack perform the first limiting on the workpiece, and the second limiting plate and the material rack perform the second limiting on the other two sides of the workpiece, so as to prevent the workpiece from falling off when the material rack rotates, which would affect the efficiency of the work.

[0018] (3) The single-chamber high-pressure vacuum quenching furnace that can be uniformly heated is equipped with a high-pressure vacuum quenching furnace, a drive unit and a material rack. The geared motor drives the material rack to rotate periodically through the rotating rod and connecting block, thereby driving the workpiece to rotate periodically, so that each surface of the workpiece is alternately exposed to the heat source, avoiding the temperature gradient caused by continuous heating on one side, and effectively improving the uniformity of the workpiece heating. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the connecting block structure of this utility model; Figure 3 This is a schematic diagram of the material rack structure of this utility model; Figure 4 This is a schematic diagram of the structure of the first limiting component of this utility model; Figure 5 This is a schematic diagram of the structure of the second limiting component of this utility model; Figure 6 This is a schematic diagram of the cleaning component structure of this utility model.

[0020] In the diagram: 1. High-pressure vacuum quenching furnace; 2. Air inlet; 3. Collection box; 4. Gear motor; 5. Rotating rod; 6. Connecting block; 7. Fixing bolt; 8. Material rack; 9. First limiting assembly; 901. First adjusting screw; 902. First limiting plate; 903. First guide rod; 10. Second limiting assembly; 1001. Second adjusting screw; 1002. Second limiting plate; 1003. Second guide rod; 11. Transmission plate; 12. Cleaning assembly; 1201. Third guide rod; 1202. Cleaning scraper; 1203. Return spring; 13. Dropping table. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: Please refer to Figures 1-3 This utility model provides the following technical solution: a single-chamber high-pressure vacuum quenching furnace capable of uniform heating, comprising a high-pressure vacuum quenching furnace 1, a driving component, and a material rack 8: including a high-pressure vacuum quenching furnace 1, an air inlet 2 at the top of the high-pressure vacuum quenching furnace 1, and a collection box 3 on one side of the bottom of the high-pressure vacuum quenching furnace 1; a driving component is provided on one side of the high-pressure vacuum quenching furnace 1, and a material rack 8 is provided inside the high-pressure vacuum quenching furnace 1. The driving component acts on the material rack 8 to realize the periodic flipping of the workpiece. As shown in the figure, the driving component includes a reduction motor 4 fixedly connected to one side surface of the high-pressure vacuum quenching furnace 1, a rotating rod 5 fixedly connected to the output end of the reduction motor 4, and a connecting block 6 fixedly connected to the outer wall of the rotating rod 5. The connecting block 6 and the reduction motor 4 form a rotating mechanism through the rotating rod 5.

[0023] In use, the geared motor 4 drives the rotating rod 5 to rotate, which in turn drives the connecting block 6 and the material rack 8 to rotate. The workpiece is fixed on the material rack 8, which in turn drives the workpiece to rotate periodically, so that each surface of the workpiece is alternately exposed to the heat source, avoiding the temperature gradient caused by continuous heating on one side, and effectively improving the heating uniformity of the workpiece.

[0024] Furthermore, a fixing bolt 7 is provided on one side of the connecting block 6, and fixing holes with internal dimensions and external dimensions of the fixing bolt 7 are provided on one side surface of both the connecting block 6 and the material rack 8. The material rack 8 adopts a modular design and can be quickly disassembled and assembled as needed. When disassembling the material rack 8, simply pull the fixing bolt 7 out of the fixing holes of the connecting block 6 and the material rack 8 in sequence, and then separate the material rack 8 from the connecting block 6, which facilitates the maintenance and replacement of the material rack 8.

[0025] Example 2: Figure 1 , Figure 2 , Figure 4 and Figure 5The technical solution shown, based on Embodiment 1, further discloses a first limiting component 9 and a second limiting component 10. The first limiting component 9 and the second limiting component 10 are provided on one side of the material rack 8. The first limiting component 9 includes a first limiting plate 902, which cooperates with the material rack 8 to limit the workpiece. The second limiting component 10 includes a second limiting plate 1002, which cooperates with the material rack 8 to limit the workpiece. Figure 4 As shown, the first limiting component 9 includes a first adjusting screw 901 threadedly connected to one side surface of the material rack 8. One end of the first adjusting screw 901 is rotatably connected to a first limiting plate 902. The first limiting plate 902 is L-shaped, and two first guide rods 903 are fixedly connected to one side surface of the first limiting plate 902. Figure 5 As shown, the second limiting component 10 includes a second adjusting screw 1001 threadedly connected to one side surface of the first limiting plate 902. One end of the second adjusting screw 1001 is rotatably connected to the second limiting plate 1002. A second guide rod 1003 is fixedly connected to one side surface of the second limiting plate 1002. There are two second guide rods 1003.

[0026] In use, the workpiece is placed on the surface of the material rack 8. Depending on the workpiece's size, rotating the first adjusting screw 901 causes axial displacement due to the threaded constraint of the threaded groove on one side of the material rack 8. This movement causes the first limiting plate 902 to move to one side, guided by the first guide rod 903. The first limiting plate 902 and the material rack 8 provide the first level of limiting for the workpiece. Then, rotating the second adjusting screw 1001 causes axial displacement due to the threaded constraint of the threaded groove on one side of the first limiting plate 902. This movement causes the second limiting plate 1002 to move to one side, guided by the second guide rod 1003. The second limiting plate 1002 and the material rack 8 provide the second level of limiting for the other two sides of the workpiece, preventing the workpiece from falling off during the rotation of the material rack 8 and affecting work efficiency.

[0027] Example 3: Figure 1 , Figure 2 and Figure 6 The technical solution shown, based on Embodiment 2, further discloses a transmission plate 11 and a cleaning assembly 12. The transmission plate 11 is fixedly connected to the bottom surface of the material rack 8, and the cleaning assembly 12 is provided inside the high-pressure vacuum quenching furnace 1. The cleaning assembly 12 includes a cleaning scraper 1202. The transmission plate 11 and the cleaning scraper 1202 cooperate to achieve the cleaning operation. Figure 6As shown, the cleaning assembly 12 includes a third guide rod 1201 fixedly connected to one side of the inner wall of the high-pressure vacuum quenching furnace 1. Two third guide rods 1201 are provided, and a cleaning scraper 1202 is slidably mounted on the outer wall of the third guide rod 1201. The top of the cleaning scraper 1202 is provided with a slope, and the bottom of the transmission plate 11 is also provided with a slope. A return spring 1203 is provided between the cleaning scraper 1202 and the high-pressure vacuum quenching furnace 1. Figure 6 As shown, the top of the collection box 3 is provided with a material drop platform 13, and both ends of the material drop platform 13 are provided with material discharge grooves, and the top surface of the material drop platform 13 is in close contact with the cleaning scraper 1202.

[0028] During use, as the material rack 8 rotates, when the slope at the bottom of the transmission plate 11 contacts the slope at the top of the cleaning scraper 1202, the rotational kinetic energy of the transmission plate 11 is converted into a linear cleaning action of the cleaning scraper 1202. The cleaning scraper 1202 slides on the outer wall of the third guide rod 1201, and the return spring 1203 remains stretched. The cleaning scraper 1202 moves from one side of the discharge table 13 to the other side of the discharge table 13, cleaning the oxide scale or quenching residue on the surface of the discharge table 13. The cleaning process allows scale or quenching residue to fall into the collection box 3 through the feeding chute for easy recycling. When the cleaning scraper 1202 moves to the other side of the discharge table 13, the transmission plate 11 continues to rotate, and the slope at the bottom of the transmission plate 11 separates from the slope at the top of the cleaning scraper 1202. The cleaning scraper 1202 is returned to one side of the discharge table 13 by the elastic action of the return spring 1203, which can automatically clean scale or quenching residue, effectively improving work efficiency.

[0029] The above is the entire working process of the device, and the contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A single-chamber high-pressure vacuum quenching furnace capable of uniform heating, comprising a high-pressure vacuum quenching furnace (1), wherein the top of the high-pressure vacuum quenching furnace (1) is provided with an air inlet (2), and a collection box (3) is provided on one side of the bottom of the high-pressure vacuum quenching furnace (1). Its features are: The high-pressure vacuum quenching furnace (1) is provided with a drive unit on one side, and a material rack (8) is provided inside the high-pressure vacuum quenching furnace (1). The drive unit acts on the material rack (8) to realize the periodic flipping of the workpiece. The material rack (8) is provided with a first limiting component (9) and a second limiting component (10) on one side. The first limiting component (9) includes a first limiting plate (902), which cooperates with the material rack (8) to limit the workpiece. The second limiting component (10) includes a second limiting plate (1002), which cooperates with the material rack (8) to limit the workpiece. The bottom surface of the material rack (8) is fixedly connected to a transmission plate (11), and the high-pressure vacuum quenching furnace (1) is equipped with a cleaning component (12), which includes a cleaning scraper (1202). The transmission plate (11) and the cleaning scraper (1202) cooperate to achieve the cleaning work.

2. The single-chamber high-pressure vacuum quenching furnace capable of uniform heating according to claim 1, characterized in that: The driving component includes a geared motor (4) fixedly connected to one side surface of the high-pressure vacuum quenching furnace (1). A rotating rod (5) is fixedly connected to the output end of the geared motor (4). A connecting block (6) is fixedly connected to the outer wall of the rotating rod (5). The connecting block (6) and the geared motor (4) together form a rotating mechanism through the rotating rod (5).

3. The single-chamber high-pressure vacuum quenching furnace capable of uniform heating according to claim 2, characterized in that: The connecting block (6) has a fixing bolt (7) on one side, and both the connecting block (6) and the material rack (8) have fixing holes on one side surface that have internal dimensions and structures that are consistent with the external dimensions and structures of the fixing bolt (7).

4. The single-chamber high-pressure vacuum quenching furnace capable of uniform heating according to claim 1, characterized in that: The first limiting component (9) includes a first adjusting screw (901) threaded to one side surface of the material rack (8), one end of the first adjusting screw (901) is rotatably connected to a first limiting plate (902), the first limiting plate (902) is L-shaped, and one side surface of the first limiting plate (902) is fixedly connected to a first guide rod (903), and there are two first guide rods (903).

5. A single-chamber high-pressure vacuum quenching furnace capable of uniform heating according to claim 1, characterized in that: The second limiting component (10) includes a second adjusting screw (1001) threadedly connected to one side surface of the first limiting plate (902), one end of the second adjusting screw (1001) being rotatably connected to the second limiting plate (1002), and a second guide rod (1003) being fixedly connected to one side surface of the second limiting plate (1002). There are two second guide rods (1003).

6. The single-chamber high-pressure vacuum quenching furnace capable of uniform heating according to claim 1, characterized in that: The cleaning assembly (12) includes a third guide rod (1201) fixedly connected to one side of the inner wall of the high-pressure vacuum quenching furnace (1). There are two third guide rods (1201), and a cleaning scraper (1202) is slidably installed on the outer wall of the third guide rod (1201). The top of the cleaning scraper (1202) is provided with a slope, and the bottom of the transmission plate (11) is provided with a slope. A return spring (1203) is provided between the cleaning scraper (1202) and the high-pressure vacuum quenching furnace (1).

7. The single-chamber high-pressure vacuum quenching furnace capable of uniform heating according to claim 1, characterized in that: The top of the collection box (3) is provided with a material drop platform (13), and both ends of the material drop platform (13) are provided with material discharge troughs. The top surface of the material drop platform (13) is in close contact with the cleaning scraper (1202).

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