A carburizing furnace for powder metallurgy of sprocket

Abstract

The utility model relates to the technical field of sprocket production, and discloses a carburizing furnace for sprocket powder metallurgy, comprising a carburizing furnace body, a first motor is fixedly installed at the middle position of the upper surface of the carburizing furnace body, an ammonia box is fixedly installed at the left end of the upper surface of the carburizing furnace body, a stainless steel burette is fixedly installed on the right side of the inner upper surface of the carburizing furnace body, the upper end of the stainless steel burette extends into the upper surface of the carburizing furnace body, a controller is fixedly installed on the left outer surface of the carburizing furnace body, a feeding pipeline is arranged on the front side surface of the carburizing furnace body, a circular plate is fixedly installed on the inner lower surface of the carburizing furnace body, a first rectangular groove is opened on the upper surface of the circular plate, a moving device is arranged inside the first rectangular groove, and the sprocket can be automatically taken out or put in by setting the lifting device and the moving device, and workers are no longer required to use tools to put in or take out the sprocket, so as to prevent injuries to workers and improve the safety and efficiency of the carburizing furnace.

Description

Technical Field

[0001] The utility model relates to the technical field of sprocket production, in particular to a carburizing furnace for sprocket powder metallurgy. Background Art

[0002] Carburizing furnace, also known as chemical heat treatment, is a metal heat treatment process that changes the chemical composition, structure and properties of the workpiece surface. Chemical heat treatment is to heat the workpiece in a medium (gas, liquid, solid) containing carbon, nitrogen or other alloy elements for a long time, so that the workpiece surface is infiltrated with elements such as carbon, nitrogen, boron and chromium.

[0003] After the existing sprocket powder metallurgy carburizing furnace has completed carburizing the sprocket, the temperature is extremely high because it has just been heated, and the worker needs to use tools to go deep into the furnace to take out the sprocket before proceeding to the next process. However, due to the high temperature in the furnace, the worker may be injured if he is not careful when taking out the workpiece, which is not conducive to the use of the sprocket powder metallurgy carburizing furnace. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a carburizing furnace for powder metallurgy of sprockets, which can automatically take out or put in the sprockets, and workers are no longer required to use tools to put in or take out the sprockets, thereby preventing injuries to workers and improving the safety and efficiency of the carburizing furnace. It solves the problem that when heating has just been completed and the temperature is extremely high, workers need to use tools to go deep into the furnace to take out the sprockets before proceeding to the next process, but because the temperature in the furnace is high, the workers themselves may be injured if they are not careful when taking out the workpiece, which is not conducive to the use of the carburizing furnace for powder metallurgy of sprockets.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a carburizing furnace for powder metallurgy of sprockets, comprising a carburizing furnace body, a first motor is fixedly installed at the middle position of the upper surface of the carburizing furnace body, an ammonia box is fixedly installed at the left end of the upper surface of the carburizing furnace body, a stainless steel burette is fixedly installed on the right side of the inner upper surface of the carburizing furnace body, the upper end of the stainless steel burette extends into the upper surface of the carburizing furnace body, a sealing cover is provided at the upper end of the stainless steel burette, and a controller is fixedly installed on the left outer surface of the carburizing furnace body;

[0008] The front surface of the carburizing furnace body is provided with a feed pipe, and the rear end of the feed pipe penetrates into the interior of the carburizing furnace body and communicates with the interior thereof;

[0009] The front end of the feed pipe is provided with a movable door adapted thereto;

[0010] Wherein, a circular plate adapted to the interior is fixedly mounted on the inner lower surface of the carburizing furnace body;

[0011] The upper surface of the circular plate is provided with a first rectangular groove, and a moving device is arranged inside the first rectangular groove; the moving device is used to send the sprocket to be processed into the interior of the carburizing furnace body;

[0012] Wherein, the first motor is electrically connected to the controller.

[0013] Preferably, the moving device comprises a threaded rod, and the front and rear ends of the threaded rod are rotatably mounted on the front and rear inner walls of the first rectangular groove respectively;

[0014] Wherein, a second motor is fixedly installed on the rear outer surface of the carburizing furnace body, and the output end of the second motor rotates and penetrates into the interior of the first rectangular groove and is fixedly connected to the rear end of the threaded rod;

[0015] Wherein, the outer surface of the threaded rod is threadedly connected with a slider;

[0016] A movable mounting block is fixedly mounted on the upper surface of the slider, a first circular groove is formed on the upper surface of the movable mounting block, a lifting device is arranged inside the first circular groove, and the lifting device is used to move the sprocket being processed up and down;

[0017] Wherein, the second motor is electrically connected to the controller.

[0018] Preferably, the lifting device comprises a hydraulic telescopic rod, which is fixedly mounted on the inner lower surface of the first circular groove;

[0019] Wherein, a T-shaped plate is fixedly installed on the telescopic end of the hydraulic telescopic rod;

[0020] Among them, a mounting plate is fixedly installed on the front end of the left side of the upper surface of the vertical plate of the T-shaped plate, and a placing rod is fixedly installed on the right surface of the mounting plate.

[0021] Preferably, a limiting block is fixedly installed on the right end of the placement rod;

[0022] Wherein, a second rectangular groove is formed on the upper surface of the vertical plate of the T-shaped plate, and the front inner wall of the second rectangular groove extends to the front side surface of the vertical plate of the T-shaped plate;

[0023] Wherein, a placement box adapted thereto is arranged inside the second rectangular groove, and the upper surface of the placement box is opened.

[0024] Preferably, the left and right ends of the front surface of the placement box are both provided with second circular grooves, and the two second circular grooves are arranged correspondingly.

[0025] Preferably, the output end of the first motor rotates and penetrates into the interior of the carburizing furnace body, and a stirring fan is fixedly installed on the output end of the first motor;

[0026] Wherein, a gas pipeline is fixedly installed on the inner lower surface of the ammonia box, and the lower end of the gas pipeline extends into the inner upper surface of the carburizing furnace body;

[0027] Wherein, a heating wire is fixedly installed on the inner wall of the carburizing furnace body.

[0028] (III) Beneficial effects

[0029] Compared with the prior art, the utility model provides a carburizing furnace for sprocket powder metallurgy, which has the following beneficial effects:

[0030] 1. The carburizing furnace for powder metallurgy of sprockets can control the second motor to drive the T-shaped plate to take out or put in the sprockets through the setting of the moving device, so that workers no longer need to use tools to put in or take out the sprockets, thereby preventing injuries to workers and improving the safety and efficiency of the carburizing furnace.

[0031] 2. The sprocket powder metallurgy carburizing furnace has a lifting device. After the sprocket or metal powder is added into the carburizing furnace body, the sprocket or metal powder can be raised to the upper end of the carburizing furnace body, making it easier to perform carburizing treatment, reducing the carburizing time, and thus improving the working efficiency of the carburizing furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the top view of a carburizing furnace for powder metallurgy of a sprocket according to the utility model;

[0033] Figure 2 This is a schematic diagram of the internal structure of the carburizing furnace body of the utility model, which is cut away from the top;

[0034] Figure 3 This is a schematic cross-sectional view of the moving device and the lifting device of the utility model;

[0035] Figure 4 The utility model is a schematic diagram of the internal cutaway side view of the carburizing furnace body.

[0036] In the figure: 1. carburizing furnace body; 2. first motor; 3. ammonia box; 4. controller; 5. feed pipe; 6. movable door; 7. circular plate; 8. first rectangular groove; 9. threaded rod; 10. second motor; 11. slider; 12. movable mounting block; 13. first circular groove; 14. hydraulic telescopic rod; 15. T-shaped plate; 16. mounting plate; 17. placement rod; 18. limit block; 19. second rectangular groove; 20. placement box; 21. second circular groove; 22. stirring fan; 23. gas pipeline; 24. heating wire; 25. stainless steel burette. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0038] See also Figure 1-4 The utility model provides a new technical solution: a carburizing furnace for sprocket powder metallurgy, comprising a carburizing furnace body 1, a first motor 2 is fixedly installed at the middle position of the upper surface of the carburizing furnace body 1, an ammonia box 3 is fixedly installed at the left end of the upper surface of the carburizing furnace body 1, a stainless steel burette 25 is fixedly installed on the right side of the inner upper surface of the carburizing furnace body 1, the upper end of the stainless steel burette 25 extends into the upper surface of the carburizing furnace body 1, a sealing cover is provided at the upper end of the stainless steel burette 25, and a controller 4 is fixedly installed on the left outer surface of the carburizing furnace body 1;

[0039] The front surface of the carburizing furnace body 1 is provided with a feed pipe 5, and the rear end of the feed pipe 5 penetrates into the interior of the carburizing furnace body 1 and communicates with the interior thereof;

[0040] The front end of the feed pipe 5 is provided with a movable door 6 adapted thereto;

[0041] A circular plate 7 adapted to the interior of the carburizing furnace body 1 is fixedly mounted on the inner lower surface thereof;

[0042] The upper surface of the circular plate 7 is provided with a first rectangular groove 8, and a moving device is provided inside the first rectangular groove 8; the moving device is used to send the sprocket to be processed into the interior of the carburizing furnace body 1;

[0043] The first motor 2 is electrically connected to the controller 4 .

[0044] Further, the moving device includes a threaded rod 9, and the front and rear ends of the threaded rod 9 are rotatably mounted on the front and rear inner walls of the first rectangular groove 8 respectively;

[0045] The second motor 10 is fixedly mounted on the rear outer surface of the carburizing furnace body 1, and the output end of the second motor 10 rotates and penetrates into the interior of the first rectangular groove 8, and is fixedly connected to the rear end of the threaded rod 9;

[0046] The outer surface of the threaded rod 9 is threadedly connected with a slider 11;

[0047] A movable mounting block 12 is fixedly mounted on the upper surface of the slider 11, a first circular groove 13 is formed on the upper surface of the movable mounting block 12, a lifting device is disposed inside the first circular groove 13, and the lifting device is used to move the sprocket being processed up and down;

[0048] The second motor 10 is electrically connected to the controller 4 .

[0049] Further, the lifting device includes a hydraulic telescopic rod 14, which is fixedly mounted on the inner lower surface of the first circular groove 13;

[0050] Wherein, a T-shaped plate 15 is fixedly mounted on the telescopic end of the hydraulic telescopic rod 14;

[0051] A mounting plate 16 is fixedly mounted on the front left side of the upper surface of the vertical plate of the T-shaped plate 15 , and a placement rod 17 is fixedly mounted on the right side surface of the mounting plate 16 .

[0052] Furthermore, a limit block 18 is fixedly installed on the right end of the placement rod 17;

[0053] The upper surface of the vertical plate of the T-shaped plate 15 is provided with a second rectangular groove 19, and the front inner wall of the second rectangular groove 19 extends to the front side surface of the vertical plate of the T-shaped plate 15;

[0054] A matching placement box 20 is disposed inside the second rectangular groove 19 , and the upper surface of the placement box 20 is opened.

[0055] Furthermore, the left and right ends of the front surface of the placement box 20 are both provided with second circular grooves 21, and the two second circular grooves 21 are arranged correspondingly.

[0056] Furthermore, the output end of the first motor 2 rotates and penetrates into the interior of the carburizing furnace body 1, and a stirring fan 22 is fixedly installed at the output end of the first motor 2;

[0057] The gas delivery pipeline 23 is fixedly installed on the inner lower surface of the ammonia box 3, and the lower end of the gas delivery pipeline 23 extends into the inner upper surface of the carburizing furnace body 1;

[0058] A heating wire 24 is fixedly mounted on the inner wall of the carburizing furnace body 1 .

[0059] Working principle: When using the infiltration furnace, open the movable door 6, and then start the second motor 10 through the controller 4. The output end of the second motor 10 rotates to drive the threaded rod 9 fixedly connected to it to rotate. The slider 11 threadedly connected to the outer surface of the threaded rod 9 moves forward with the rotation of the threaded rod 9, driving the movable mounting block 12 fixedly connected to the upper surface of the slider 11 to move synchronously. The movable mounting block 12 drives the T-shaped plate 15 arranged above it to move forward. The T-shaped plate 15 drives the mounting plate 16 and the placement box 20 on its upper surface to pass through the inside of the feed pipe 5 to the front of the feed pipe 5. At this time, the material to be carburized can be placed in the feed pipe 5. The sprocket or the metal powder for making the sprocket is placed on the placement rod 17 or inside the placement box 20. At this time, the output end of the second motor 10 is started to reverse through the controller 4, thereby driving the sprocket on the placement rod 17 or the metal powder inside the placement box 20 to enter the interior of the carburizing furnace body 1. At this time, the heating wire 24 is started to heat the interior of the carburizing furnace body 1, and then the first motor 2 is started, and the stirring fan 22 fixedly installed at the output end of the first motor 2 rotates, and then the cover on the stainless steel burette 25 is opened, kerosene is added to the stainless steel burette 25, and the cover is closed after the addition is completed, and then the ammonia in the ammonia box 3 is passed through the inlet. The gas pipeline 23 is sent into the interior of the carburizing furnace body 1 to carburize the sprocket or metal powder, and then the hydraulic telescopic rod 14 is started. The hydraulic telescopic rod 14 drives the T-shaped plate 15 fixedly connected thereto to move upward, and then drives the sprocket or metal powder placed thereon to move to the upper end of the interior of the carburizing furnace body 1. The upper end has a higher temperature and is closer to the inlet of the gas pipeline 23 and the stainless steel burette 25, making it easier to carburize it. After the sprocket or metal powder is added to the interior of the carburizing furnace body 1 through the setting of the lifting device, the sprocket or metal powder can be raised to the upper end of the interior of the carburizing furnace body 1, making it easier to Carburizing treatment is carried out to reduce the carburizing time, thereby improving the working efficiency of the carburizing furnace. After completion, the sprocket or metal powder after carburizing is sent to the outside of the carburizing furnace body 1 through a mobile device. If it is metal powder, two metal sticks can be inserted into the second circular groove 21 to remove the placement box 20 and perform the next step of processing on it. Through the setting of the mobile device, the second motor can be controlled by the controller to drive the T-shaped plate to take out or put in the sprocket. Workers no longer need to use tools to put in or take out the sprocket, which prevents injuries to workers and improves the safety and efficiency of the carburizing furnace.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A carburizing furnace for sprocket powder metallurgy, comprising a carburizing furnace body (1), a first motor (2) fixedly mounted at a middle position on the upper surface of the carburizing furnace body (1), an ammonia box (3) fixedly mounted at the left end of the upper surface of the carburizing furnace body (1), a stainless steel burette (25) fixedly mounted on the right side of the inner upper surface of the carburizing furnace body (1), the upper end of the stainless steel burette (25) extending into the upper surface of the carburizing furnace body (1), a sealing cover provided at the upper end of the stainless steel burette (25), and a controller (4) fixedly mounted on the left outer surface of the carburizing furnace body (1); Features: A feed pipe (5) is provided on the front surface of the carburizing furnace body (1), and a rear end of the feed pipe (5) penetrates into the interior of the carburizing furnace body (1) and communicates with the interior thereof; Wherein, a movable door (6) adapted to the feeding pipe (5) is provided at the inner front end thereof; Wherein, a circular plate (7) adapted to the interior of the carburizing furnace body (1) is fixedly mounted on the inner lower surface thereof; A first rectangular groove (8) is formed on the upper surface of the circular plate (7), and a moving device is provided inside the first rectangular groove (8); the moving device is used to send the sprocket to be processed into the interior of the carburizing furnace body (1); Wherein, the first motor (2) is electrically connected to the controller (4).

2. A carburizing furnace for sprocket powder metallurgy according to claim 1, characterized in that: The moving device comprises a threaded rod (9), the front and rear ends of the threaded rod (9) being rotatably mounted on the front and rear inner walls of the first rectangular groove (8) respectively; A second motor (10) is fixedly mounted on the rear outer surface of the carburizing furnace body (1), and an output end of the second motor (10) rotates and penetrates into the interior of the first rectangular groove (8) and is fixedly connected to the rear end of the threaded rod (9); The outer surface of the threaded rod (9) is threadedly connected with a slider (11); A movable mounting block (12) is fixedly mounted on the upper surface of the slider (11), a first circular groove (13) is formed on the upper surface of the movable mounting block (12), and a lifting device is arranged inside the first circular groove (13), the lifting device being used to move the sprocket being processed up and down; The second motor (10) is electrically connected to the controller (4).

3. A carburizing furnace for sprocket powder metallurgy according to claim 2, characterized in that: The lifting device comprises a hydraulic telescopic rod (14), wherein the hydraulic telescopic rod (14) is fixedly mounted on the inner lower surface of the first circular groove (13); Wherein, a T-shaped plate (15) is fixedly mounted on the telescopic end of the hydraulic telescopic rod (14); A mounting plate (16) is fixedly mounted on the front left side of the upper surface of the vertical plate of the T-shaped plate (15), and a placement rod (17) is fixedly mounted on the right side surface of the mounting plate (16).

4. A carburizing furnace for sprocket powder metallurgy according to claim 3, characterized in that: A limiting block (18) is fixedly mounted on the right end of the placement rod (17); The upper surface of the vertical plate of the T-shaped plate (15) is provided with a second rectangular groove (19), and the front inner wall of the second rectangular groove (19) extends to the front side surface of the vertical plate of the T-shaped plate (15); A placement box (20) adapted thereto is arranged inside the second rectangular groove (19), and the upper surface of the placement box (20) is opened.

5. A carburizing furnace for sprocket powder metallurgy according to claim 4, characterized in that: Second circular grooves (21) are provided at both left and right ends of the front surface of the placement box (20), and the two second circular grooves (21) are arranged correspondingly.

6. A carburizing furnace for powder metallurgy of sprockets according to claim 1, characterized in that: The output end of the first motor (2) rotates and penetrates into the interior of the carburizing furnace body (1), and a stirring fan (22) is fixedly mounted on the output end of the first motor (2); A gas delivery pipeline (23) is fixedly installed on the inner lower surface of the ammonia box (3), and the lower end of the gas delivery pipeline (23) extends into the inner upper surface of the carburizing furnace body (1); A heating wire (24) is fixedly mounted on the inner wall of the carburizing furnace body (1).

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