Powder metallurgy carburizing furnace

Abstract

The utility model discloses a powder metallurgy carburizing furnace which comprises a base and a furnace body arranged at the top of the base, one end of the furnace body is arranged to be of an opening structure and covered with an end cover, a control assembly is arranged at the top of the base and used for driving the furnace body and the end cover to move towards each other or away from each other, and a rotating shaft is arranged in the center of the end cover. One end of the rotating shaft is rotationally connected with a discharging plate which is of a semicircular structure and is in sliding connection with the inner wall of the furnace body; the side, away from the end cover, of the furnace body is connected with an exhaust pipe, one end of the exhaust pipe is connected with a filtering chamber, the top of the filtering chamber is movably connected with an upper cover, the side, close to the upper cover, of the filtering chamber is connected with an air outlet pipe, and a filtering assembly is arranged in the filtering chamber and located between the exhaust pipe and the air outlet pipe. By means of the structure, the control assembly drives the furnace body and the end cover to move away from each other, the moving end cover drives the discharging plate to move through the rotating shaft, powder metallurgy raw materials in the furnace body can be discharged to the outer side of the furnace body conveniently, discharging is more thorough, and discharging work is simple and efficient.

Description

Technical Field

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

[0002] As an advanced material preparation process, powder metallurgy has the advantage of being able to manufacture complex shapes and high-performance parts. Carburizing is a key step in improving the performance of powder metallurgy workpieces.

[0003] In the prior art, after searching, it was found that a Chinese patent disclosed "a powder metallurgy carburizing furnace", and its application number is "202220098127.1". The patent mainly includes a furnace body, and a partition is arranged inside the furnace body, and the partition is fixedly connected to the inner wall of the furnace body. An opening is arranged on the surface of the partition, and a material discharge cover is symmetrically arranged at the bottom of the partition, and the material discharge cover is located below the opening. The bottom of the material discharge cover is fixedly connected with a material discharge control valve, and heating elements are symmetrically arranged on the side wall of the furnace body. The heating elements are located below the partition, and the inner top of the furnace body is rotatably connected with two rotating rods. Although the above-mentioned utility model adopts a double stirring method for stirring and mixing, which makes the mixing efficiency higher, the stirring more uniform, and the operation process more convenient, it has better effect and stronger practicality than the previous stirring method of a single stirring rod. However, after the above patent sets up the filtering mechanism to filter the harmful gas, it is not convenient to clean the filter cotton cloth layer, the activated carbon adsorption layer and the HEPA filter layer. After a long time of filtering, a large amount of powder dust will be attached to the surface. If it is not cleaned and replaced in time, the filtering effect will be affected, and then the purification of harmful gases will be affected; and the raw materials processed inside the furnace body are discharged through the discharge pipe, and the raw materials far away from the discharge pipe may not be discharged smoothly, which may easily lead to incomplete discharge and affect the discharge efficiency. Therefore, the utility model provides a powder metallurgy carburizing furnace to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide a powder metallurgy carburizing furnace, in which a control component drives a furnace body and an end cover to move apart, and the movable end cover drives a feeding plate to move through a rotating shaft at the same time, so as to facilitate the feeding of powder metallurgy raw materials inside the furnace body to the outside of the furnace body, and the feeding is more thorough, the feeding work is simple and efficient, and the upper cover is screwed and connected at the top of the filter chamber, which is convenient for disassembly of the upper cover, and the filter cotton cloth layer, the activated carbon adsorption layer and the HEPA filter mesh layer are convenient for cleaning, and the operation is simple and easy to use.

[0005] In order to achieve the above-mentioned purpose, a powder metallurgy carburizing furnace is provided, comprising a base and a furnace body arranged on the top of the base, one end of the furnace body is arranged as an opening structure covered with an end cover, a control component is arranged on the top of the base, the control component is used to drive the furnace body and the end cover to move towards or away from each other, a rotating shaft is arranged at the center of the end cover, one end of the rotating shaft is rotatably connected to a blanking plate arranged as a semicircular structure and slidably connected to the inner wall of the furnace body;

[0006] An exhaust pipe is connected to the side of the furnace body away from the end cover, one end of the exhaust pipe is connected to a filter chamber, an upper cover is movably connected to the top of the filter chamber, an outlet pipe is connected to one side of the filter chamber and close to the upper cover, and a filter assembly is provided inside the filter chamber and between the exhaust pipe and the outlet pipe.

[0007] According to the powder metallurgy carburizing furnace described, the control component includes a bidirectional screw rotatably connected to the inner side of the base, a guide rod fixedly connected to the inner side of the base and arranged opposite to the bidirectional screw, a first support plate and a second support plate symmetrically threadedly connected to the outer side of the bidirectional screw, a second motor fixedly connected to one side of the base and two connecting plates symmetrically fixedly connected to the outer side of the end cover, the first support plate and the second support plate are both slidably connected to the guide rod, the bottoms of the two connecting plates are fixedly connected to the second support plate, the first support plate is fixedly connected to the bottom of the furnace body, and the end of the bidirectional screw close to the second motor passes through the base and is fixedly connected to the output shaft of the second motor.

[0008] According to the powder metallurgy carburizing furnace, the filter assembly includes a supporting circular ring plate fixedly connected to the inner wall of the filter chamber, a mounting circular ring plate attached to the top of the supporting circular ring plate, a support rod fixedly connected to the middle part of the mounting circular ring plate, an insertion rod fixedly connected to the center of the top of the support rod, and a filter cotton cloth layer, an activated carbon adsorption layer and a HEPA filter mesh layer inserted from bottom to top on the outside of the insertion rod.

[0009] According to the powder metallurgy carburizing furnace, the upper cover is screwed to the filter chamber, and the top of the insertion rod extends to the upper cover.

[0010] According to the powder metallurgy carburizing furnace, the rotating shaft is rotatably connected to the inside of the end cover, a first motor is fixedly connected to the center of the outer side of the end cover, the end of the rotating shaft opposite to the blanking plate is fixedly connected to the output shaft of the first motor, and three stirring plates are evenly fixedly connected to the outer side of the rotating shaft through a connecting rod.

[0011] According to the powder metallurgy carburizing furnace, a feed pipe is provided on the top of the furnace body, and a control valve is provided on the outside of the feed pipe.

[0012] The utility model has the following beneficial effects:

[0013] 1. Compared with the prior art, this powder metallurgy carburizing furnace drives the furnace body and the end cover to move apart through the control component, and the movable end cover drives the unloading plate to move through the rotating shaft, so that the powder metallurgy raw materials inside the furnace body can be unloaded to the outside of the furnace body, and the unloading is more thorough, and the unloading work is simple and efficient.

[0014] 2. Compared with the prior art, the powder metallurgy carburizing furnace has an upper cover screwed on the top of the filter chamber, which is convenient for disassembly of the upper cover to take out the filter cotton cloth layer, the activated carbon adsorption layer and the HEPA filter layer for cleaning. The operation is simple and easy to use.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is a first overall structural schematic diagram of a powder metallurgy carburizing furnace of the utility model;

[0018] Figure 2 This is a second overall structural schematic diagram of a powder metallurgy carburizing furnace of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal cross-sectional structure of a filter chamber of a powder metallurgy carburizing furnace of the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the internal cross-sectional structure of a furnace body of a powder metallurgy carburizing furnace.

[0021] Legend:

[0022] 1. Base; 2. Furnace body; 3. End cover; 4. Rotating shaft; 5. First motor; 6. Connecting rod; 7. Stirring plate; 8. Unloading plate; 9. Feeding pipe; 10. Bidirectional screw rod; 11. Guide rod; 12. Second motor; 13. First supporting plate; 14. Second supporting plate; 15. Connecting plate; 16. Exhaust pipe; 17. Filter chamber; 18. Upper cover; 19. Exhaust pipe; 20. Supporting annular plate; 21. Installing annular plate; 22. Supporting rod; 23. Inserting rod; 24. Filter cotton cloth layer; 25. Activated carbon adsorption layer; 26. HEPA filter layer. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-4 The utility model embodiment is a powder metallurgy carburizing furnace, which includes a base 1 and a furnace body 2 arranged on the top of the base 1, one end of the furnace body 2 is set as an opening structure covered with an end cover 3, a control component is set on the top of the base 1, and the control component is used to drive the furnace body 2 and the end cover 3 to move toward or away from each other. A rotating shaft 4 is provided at the center of the end cover 3, and one end of the rotating shaft 4 is rotatably connected to a blanking plate 8 that is set as a semicircular structure and is slidably connected to the inner wall of the furnace body 2; an exhaust pipe 16 is connected to the side of the furnace body 2 away from the end cover 3, and one end of the exhaust pipe 16 is connected to The filter chamber 17 is movably connected with an upper cover 18 on the top of the filter chamber 17. An outlet pipe 19 is connected to one side of the filter chamber 17 and close to the upper cover 18. A filter assembly is provided inside the filter chamber 17 and between the exhaust pipe 16 and the outlet pipe 19. After the carburizing work inside the furnace body 2 is completed, the control assembly drives the furnace body 2 and the end cover 3 to move apart. The moving end cover 3 drives the unloading plate 8 to move through the rotating shaft 4 at the same time, so as to facilitate the unloading of the powder metallurgical raw materials inside the furnace body 2 to the outside of the furnace body 2. The unloading is more thorough, and the unloading work is simple and efficient. The filter chamber 17 and the filter assembly are provided on one side of the furnace body 2 to filter the exhaust gas. At the same time, the upper cover 18 movably connected to the top of the filter chamber 17 can facilitate the removal of the filter assembly for cleaning. The operation is simple and convenient to use.

[0025] The control assembly includes a bidirectional screw 10 rotatably connected to the inner side of the base 1, a guide rod 11 fixedly connected to the inner side of the base 1 and arranged opposite to the bidirectional screw 10, a first support plate 13 and a second support plate 14 symmetrically threadedly connected to the outer side of the bidirectional screw 10, a second motor 12 fixedly connected to one side of the base 1 and two connecting plates 15 symmetrically fixedly connected to the outer side of the end cover 3, the first support plate 13 and the second support plate 14 are both slidably connected to the guide rod 11, the bottoms of the two connecting plates 15 are fixedly connected to the second support plate 14, the first support plate 13 is fixedly connected to the bottom of the furnace body 2, and the bidirectional screw 10 is symmetrically threadedly connected to the outer side of the bidirectional screw 10. One end of the rod 10 close to the second motor 12 passes through the base 1 and is fixedly connected to the output shaft of the second motor 12. The operation of the second motor 12 drives the bidirectional screw 10 to rotate. The rotating bidirectional screw 10 can realize the separation operation of the first support plate 13 and the second support plate 14. The moving first support plate 13 and the second support plate 14 can better drive the furnace body 2 and the end cover 3 to move apart. The end cover 3 moving away from the furnace body 2 simultaneously drives the blanking plate 8 to move inside the furnace body 2 through the rotating shaft 4, so that under the action of the blanking plate 8, the powder metallurgical raw materials inside the furnace body 2 can be scraped out to complete the blanking work.

[0026] The filter assembly includes a supporting annular plate 20 fixedly connected to the inner wall of the filter chamber 17, an installing annular plate 21 fitted on the top of the supporting annular plate 20, a supporting rod 22 fixedly connected to the middle part of the installing annular plate 21, an insert rod 23 fixedly connected to the top center of the supporting rod 22, and a filter cotton cloth layer 24, an activated carbon adsorption layer 25 and a HEPA filter mesh layer 26 plugged into the outer side of the insert rod 23 from bottom to top. The filter cotton cloth layer 24, the activated carbon adsorption layer 25 and the HEPA filter mesh layer 26 can filter and purify harmful gases well. When it is necessary to clean the filter cotton cloth layer 24, the activated carbon adsorption layer 25 and the HEPA filter mesh layer 26, the insert rod 23 is operated to remove the installing annular plate 21 from the inside of the filter chamber 17, and the plugged filter cotton cloth layer 24, the activated carbon adsorption layer 25 and the HEPA filter mesh layer 26 are conveniently removed from the insert rod 23 for cleaning, and the operation is simple.

[0027] The upper cover 18 is screwed together with the filter chamber 17, and the top of the insertion rod 23 extends to the upper cover 18. The screwed upper cover 18 is stably connected and easy to disassemble, thereby facilitating the disassembly of the upper cover 18 and conveniently taking out the filter cotton cloth layer 24, the activated carbon adsorption layer 25 and the HEPA filter mesh layer 26 for cleaning.

[0028] The rotating shaft 4 is rotatably connected to the inside of the end cover 3, and a first motor 5 is fixedly connected to the center of the outer side of the end cover 3. The end of the rotating shaft 4 opposite to the unloading plate 8 is fixedly connected to the output shaft of the first motor 5. Three stirring plates 7 are evenly fixedly connected to the outer side of the rotating shaft 4 through a connecting rod 6. The operation of the first motor 5 drives the rotating shaft 4 to rotate, and the rotating rotating shaft 4 drives the stirring plates 7 to rotate inside the furnace body 2 through the connecting rod 6, so as to perform stirring and mixing work well.

[0029] A feed pipe 9 is provided on the top of the furnace body 2, and a control valve is provided on the outside of the feed pipe 9. The feed pipe 9 is used to feed powder metallurgy raw materials into the furnace body 2. The control valve can be used to control the on and off of the feed pipe 9.

[0030] Working principle: Powder metallurgy raw materials are fed into the furnace body 2 through the feed pipe 9, the first motor 5 drives the rotating shaft 4 to rotate, and the rotating rotating shaft 4 drives the stirring plate 7 to rotate inside the furnace body 2 through the connecting rod 6, which can well perform stirring and mixing work. After the processing inside the furnace body 2 is completed, the second motor 12 is controlled to run and drive the bidirectional screw 10 to rotate. The rotating bidirectional screw 10 can realize the separation operation of the first support plate 13 and the second support plate 14. The furnace body 2 and the end cover 3 can be better driven to move apart through the moving first support plate 13 and the second support plate 14. The end cover 3 moving away from the furnace body 2 drives the unloading plate 8 to move inside the furnace body 2 through the rotating shaft 4, so that the powder metallurgy raw materials inside the furnace body 2 can be scraped out under the action of the unloading plate 8 to complete the unloading work, and the unloading work is more thorough, simple and efficient;

[0031] When it is necessary to clean the filter cotton cloth layer 24, the activated carbon adsorption layer 25 and the HEPA filter mesh layer 26, the upper cover 18 is rotated for disassembly, and the insertion rod 23 is operated to remove the mounting annular plate 21 from the inside of the filter chamber 17. The plugged filter cotton cloth layer 24, the activated carbon adsorption layer 25 and the HEPA filter mesh layer 26 are conveniently removed from the insertion rod 23 for cleaning, which is simple to operate and easy to use.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A powder metallurgy carburizing furnace, comprising a base (1) and a furnace body (2) arranged on the top of the base (1), characterized in that: One end of the furnace body (2) is arranged as an opening structure covered with an end cover (3); a control component is arranged on the top of the base (1); the control component is used to drive the furnace body (2) and the end cover (3) to move towards or away from each other; a rotating shaft (4) is arranged at the center of the end cover (3); one end of the rotating shaft (4) is rotatably connected to a blanking plate (8) arranged as a semicircular structure and slidably connected to the inner wall of the furnace body (2); An exhaust pipe (16) is connected to a side of the furnace body (2) away from the end cover (3); one end of the exhaust pipe (16) is connected to a filter chamber (17); a top cover (18) is movably connected to the top of the filter chamber (17); an outlet pipe (19) is connected to one side of the filter chamber (17) and close to the top cover (18); and a filter assembly is provided inside the filter chamber (17) and between the exhaust pipe (16) and the outlet pipe (19).

2. A powder metallurgy carburizing furnace according to claim 1, characterized in that: The control assembly comprises a bidirectional screw (10) rotatably connected to the inner side of the base (1), a guide rod (11) fixedly connected to the inner side of the base (1) and arranged opposite to the bidirectional screw rod (10), a first support plate (13) and a second support plate (14) symmetrically threadedly connected to the outer side of the bidirectional screw rod (10), a second motor (12) fixedly connected to one side of the base (1), and two connecting plates (15) symmetrically fixedly connected to the outer side of the end cover (3), the first support plate (13) and the second support plate (14) are both slidably connected to the guide rod (11), the bottoms of the two connecting plates (15) are both fixedly connected to the second support plate (14), the first support plate (13) is fixedly connected to the bottom of the furnace body (2), and one end of the bidirectional screw rod (10) close to the second motor (12) passes through the base (1) and is fixedly connected to the output shaft of the second motor (12).

3. A powder metallurgy carburizing furnace according to claim 2, characterized in that: The filter assembly comprises a supporting circular ring plate (20) fixedly connected to the inner wall of the filter chamber (17), a mounting circular ring plate (21) attached to the top of the supporting circular ring plate (20), a supporting rod (22) fixedly connected to the middle of the mounting circular ring plate (21), an insert rod (23) fixedly connected to the center of the top of the supporting rod (22), and a filter cotton cloth layer (24), an activated carbon adsorption layer (25) and a HEPA filter mesh layer (26) inserted from bottom to top on the outside of the insert rod (23).

4. A powder metallurgy carburizing furnace according to claim 3, characterized in that: The upper cover (18) is screwed together with the filter chamber (17), and the top of the insertion rod (23) extends to the upper cover (18).

5. A powder metallurgy carburizing furnace according to claim 4, characterized in that: The rotating shaft (4) is rotatably connected to the inside of the end cover (3); a first motor (5) is fixedly connected to the center of the outer side of the end cover (3); an end of the rotating shaft (4) opposite to the unloading plate (8) is fixedly connected to the output shaft of the first motor (5); and three stirring plates (7) are evenly fixedly connected to the outer side of the rotating shaft (4) via a connecting rod (6).

6. A powder metallurgy carburizing furnace according to claim 5, characterized in that: A feed pipe (9) is provided on the top of the furnace body (2), and a control valve is provided on the outside of the feed pipe (9).

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