Cover type multifunctional ion nitriding furnace

Abstract

The utility model discloses a cover-type multifunctional ion nitriding furnace which comprises a furnace body, a furnace cover is detachably connected to the top end of the furnace body, a cathode assembly is fixedly installed at the center of the bottom end of the furnace cover, a moving assembly is arranged between the furnace cover and the furnace body, an exhaust assembly is arranged outside the furnace body, and the cathode assembly is fixedly installed at the bottom end of the furnace cover. The exhaust assembly comprises a vacuum pump fixedly installed at one end of the outer surface of the furnace body, the vacuum pump is fixedly connected with the furnace body through a vacuum pipe, a nitrogen generator is fixedly installed at the other end of the outer surface of the furnace body, and the nitrogen generator is fixedly connected with the furnace body through a connecting pipe. The connecting pipe is provided with a booster pump, the booster pump is fixedly installed outside the furnace body, the vacuum pump works and can conduct vacuum treatment on the nitriding furnace, the nitrogen generator and the booster pump work at the same time and can conduct nitrogen exhausting on the interior of the nitriding furnace, and therefore the purification efficiency of the nitriding environment can be improved, and the quality problem of products is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of nitriding furnace production, in particular to a bell-type multifunctional ion nitriding furnace. Background Art

[0002] Nitriding is a chemical heat treatment process that allows nitrogen atoms to penetrate the surface of a workpiece at a specific temperature and in a specific medium. Nitriding products exhibit excellent wear resistance, fatigue resistance, corrosion resistance, and high temperature resistance. Ammonia gas is introduced into a stainless steel vacuum-sealed tank within a nitriding furnace, heated to 520°C, and maintained for an appropriate time. This process, which ranges from 3 to 90 hours depending on the workpiece material and the desired layer, creates a nitrogen-reinforced layer on the surface of the nitrided workpiece, resulting in high hardness, high wear resistance, a high fatigue limit, and good wear resistance. Nitriding requires a nitriding furnace.

[0003] At present, for the nitriding furnace, nitrogen needs to be sent for exhaust before use. However, simple exhaust cannot make the nitriding environment in the nitriding furnace pure, and impurities may exist, which may cause quality problems in the product.

[0004] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0005] In view of the problems in the related art, the present invention proposes a bell-type multifunctional ion nitriding furnace to overcome the above technical problems existing in the existing related art.

[0006] To this end, the specific technical solutions adopted in this utility model are as follows:

[0007] A hood-type multifunctional ion nitriding furnace comprises a furnace body, a processing groove is provided on the top of the furnace body, a furnace cover is detachably connected to the opening of the processing groove, a cathode assembly is fixedly installed on the center of the bottom end of the furnace cover, a movable assembly is provided between the furnace cover and the furnace body, heating rings are provided at equal distances on the inner wall of the processing groove, a storage rack is fixedly connected to the bottom end of the processing groove, an exhaust assembly is provided outside the furnace body, the exhaust assembly comprises a vacuum pump fixedly installed on one end of the outer surface of the furnace body, the vacuum pump is fixedly connected to the furnace body through a vacuum tube, a nitrogen generator is fixedly installed on the other end of the outer surface of the furnace body, the nitrogen generator is fixedly connected to the furnace body through a connecting pipe, a booster pump is provided on the connecting pipe, and the booster pump is fixedly installed outside the furnace body.

[0008] Furthermore, in order to facilitate the removal of the furnace cover, the moving assembly includes support blocks welded on both ends of the outer surface of the furnace body, and an electric telescopic rod is fixedly connected to the support block. The output end of the electric telescopic rod is fixedly connected to the fixed block, and the fixed blocks are respectively fixedly connected to the furnace cover.

[0009] Furthermore, in order to increase the tightness between the furnace body and the furnace cover, U-shaped blocks are fixedly connected on both sides of the outer surface of the furnace body, a screw is hinged on the U-shaped block, a limiting bolt is threaded on the screw, and a limiting block is fixedly connected on both sides of the outer surface of the furnace cover, and a limiting groove is provided on the limiting block.

[0010] Furthermore, in order to increase the sealing between the furnace body and the furnace cover, a groove is provided on the top end of the furnace body, and a protruding block is fixedly connected to the bottom end of the furnace cover, and the protruding block matches the groove.

[0011] Furthermore, in order to increase the sealing between the protruding piece and the groove, a sealing ring is provided between the protruding piece and the groove, and the sealing ring is fixedly installed on the bottom end of the groove.

[0012] Furthermore, in order to facilitate understanding of the heating condition, a temperature sensor is fixedly mounted on one side of the outer surface of the furnace body.

[0013] Furthermore, in order to facilitate personnel control, a controller is fixedly installed on one side of the outer surface of the furnace body away from the bottom end of the temperature sensor, and the controller is electrically connected to the temperature sensor, the electric telescopic rod, the heating ring, the vacuum pump, the booster pump and the nitrogen generator.

[0014] Furthermore, in order to stabilize the furnace body on the ground, support legs are welded around the bottom end of the furnace body.

[0015] The beneficial effects of the utility model are:

[0016] 1. The controller controls the vacuum pump to perform vacuum treatment on the nitriding furnace. Then the controller enables the nitrogen generator and the booster pump to work simultaneously to exhaust nitrogen from the nitriding furnace, thereby improving the purification efficiency of the nitriding environment and avoiding product quality problems.

[0017] 2. By twisting the limit bolt to move it away from the limit block and moving the screw out of the limit slot, the controller controls the electric telescopic rod to work. The electric telescopic rod can move the furnace cover, making it easier to take out the workpiece on the shelf, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1This is a structural schematic diagram of a bell-type multifunctional ion nitriding furnace according to an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the expanded structure of a bell-type multifunctional ion nitriding furnace according to an embodiment of the present utility model;

[0021] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is an expanded cross-sectional view of a bell-type multifunctional ion nitriding furnace according to an embodiment of the present utility model;

[0023] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0024] In the picture:

[0025] 1. Furnace body; 2. Support legs; 3. Vacuum pump; 4. Vacuum tube; 5. Temperature sensor; 6. Controller; 7. Nitrogen generator; 8. Booster pump; 9. Connecting pipe; 10. Processing tank; 11. Heating ring; 12. Storage rack; 13. U-shaped block; 14. Screw; 15. Limit bolt; 16. Support block; 17. Electric telescopic rod; 18. Fixed block; 19. Furnace cover; 20. Limit block; 21. Limit groove; 22. Protruding block; 23. Groove; 24. Sealing ring; 25. Cathode assembly. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0027] According to an embodiment of the present utility model, a bell-type multifunctional ion nitriding furnace is provided.

[0028] Embodiment 1;

[0029] like Figure 1 、 Figure 2 and Figure 4As shown, according to the embodiment of the utility model, the hood-type multifunctional ion nitriding furnace includes a furnace body 1, and support legs 2 are welded around the bottom end of the furnace body 1. The setting of the support legs 2 can make the furnace body 1 stable on the ground. A controller 6 is fixedly installed on one side of the outer surface of the furnace body 1, and the controller 6 is electrically connected to the power supply. A temperature sensor 5 is fixedly installed on the top of one side of the outer surface of the furnace body 1 away from the controller 6, and the temperature sensor 5 is electrically connected to the controller 6. A processing groove 10 is opened on the top of the furnace body 1, and heating rings 11 are equidistantly provided on the inner wall of the processing groove 10, and the heating rings 11 are electrically connected to the controller 6. A storage rack 12 is fixedly connected to the bottom end of the processing groove 10, and the setting of the storage rack 12 is convenient for placing the workpiece. The opening of the processing groove 10 is detachably connected to the furnace cover 19, and a cathode assembly 25 is fixedly installed at the center of the bottom end of the furnace cover 19. The cathode assembly 25 can make ions and the workpiece surface A reaction occurs, and an exhaust component is provided outside the furnace body 1. The exhaust component includes a vacuum pump 3 fixedly mounted on one end of the outer surface of the furnace body 1, and the vacuum pump 3 is electrically connected to the controller 6. The vacuum pump 3 is fixedly connected to the furnace body 1 through a vacuum tube 4, and the vacuum tube 4 is interconnected with the processing tank 10. A nitrogen generator 7 is fixedly mounted on the other end of the outer surface of the furnace body 1, and the nitrogen generator 7 is electrically connected to the controller 6. The nitrogen generator 7 is fixedly connected to the furnace body 1 through a connecting pipe 9, and the connecting pipe 9 is interconnected with the processing tank 10. A booster pump 8 is provided on the connecting pipe 9, and the booster pump 8 is electrically connected to the controller 6. The booster pump 8 is fixedly mounted outside the furnace body 1, and the controller 6 controls the operation of the vacuum pump 3 to perform vacuum treatment on the nitriding furnace. Then the controller 6 enables the nitrogen generator 7 and the booster pump 8 to work simultaneously, and to exhaust nitrogen from the nitriding furnace, thereby improving the purification efficiency of the nitriding environment and avoiding quality problems of the product.

[0030] Embodiment 2;

[0031] See also Figure 1-Figure 5A moving assembly is provided between the furnace cover 19 and the furnace body 1. The moving assembly includes a support block 16 welded on both ends of the outer surface of the furnace body 1. An electric telescopic rod 17 is fixedly connected to the support block 16. The electric telescopic rod 17 is electrically connected to the controller 6. The output end of the electric telescopic rod 17 is fixedly connected to the fixed block 18. The fixed blocks 18 are respectively fixedly connected to the furnace cover 19. U-shaped blocks 13 are fixedly connected on both sides of the outer surface of the furnace body 1. A screw 14 is hinged on the U-shaped block 13. A limit bolt 15 is threadedly connected to the screw 14. A limit block 20 is fixedly connected to both sides of the outer surface of the furnace cover 19. A limit slot 21 is provided on the limit block 20. The size of the limit bolt 15 is fixedly connected to the outer surface of the furnace cover 19. The size of the limit groove 21 is much larger than that of the limit groove 21. In order to increase the sealing between the furnace body 1 and the furnace cover 19, a groove 23 is opened on the top of the furnace body 1, and a protruding block 22 is fixedly connected to the bottom end of the furnace cover 19. The protruding block 22 matches the groove 23. A sealing ring 24 is provided between the protruding block 22 and the groove 23. The sealing ring 24 is fixedly installed on the bottom end of the groove 23. By twisting the limit bolt 15, the limit bolt 15 is moved away from the limit block 20, and the screw 14 is moved out of the limit groove 21. The controller 6 controls the electric telescopic rod 17 to work, and the electric telescopic rod 17 can move the furnace cover 19, which is convenient for taking out the workpiece on the shelf 12, thereby improving work efficiency.

[0032] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process is described in detail below.

[0033] In actual application, first, the workpiece is placed on the rack 12. Secondly, the controller 6 makes the electric telescopic rod 17 work, and the electric telescopic rod 17 drives the furnace cover 19 to approach the furnace body 1. When the furnace cover 19 contacts the furnace body 1, the screw 14 is turned over so that the screw 14 is in the limit groove 21, and the limit bolt 15 is twisted so that the limit bolt 15 contacts the limit block 20, further improving the tightness between the furnace cover 19 and the furnace body 1. Then, the controller 6 controls the vacuum pump 3 to work, which can perform vacuum treatment on the nitriding furnace. The controller 6 makes the nitrogen generator 7 and the booster 20 work. The pump 8 works at the same time to exhaust nitrogen from the nitriding furnace, thereby improving the purification efficiency of the nitriding environment and avoiding quality problems of the product. The controller 6 enables the heating ring 11 to work and heat the workpiece on the rack 12. After the workpiece is processed, the limit bolt 15 is twisted to move the limit bolt 15 away from the limit block 20, and the screw 14 is moved out of the limit groove 21. The controller 6 controls the electric telescopic rod 17 to work, and the electric telescopic rod 17 can move the furnace cover 19 to facilitate the removal of the workpiece on the rack 12, thereby improving work efficiency.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bell-type multifunctional ion nitriding furnace, comprising a furnace body (1), characterized in that: A processing groove (10) is provided on the top of the furnace body (1), a furnace cover (19) is detachably connected to the opening of the processing groove (10), a cathode assembly (25) is fixedly installed at the center of the bottom end of the furnace cover (19), a moving assembly is provided between the furnace cover (19) and the furnace body (1), heating rings (11) are provided at equal distances on the inner wall of the processing groove (10), a storage rack (12) is fixedly connected to the bottom end of the processing groove (10), and an exhaust is provided outside the furnace body (1). The exhaust assembly comprises a vacuum pump (3) fixedly mounted on one end of the outer surface of the furnace body (1), the vacuum pump (3) being fixedly connected to the furnace body (1) via a vacuum tube (4), a nitrogen generator (7) being fixedly mounted on the other end of the outer surface of the furnace body (1), the nitrogen generator (7) being fixedly connected to the furnace body (1) via a connecting tube (9), a booster pump (8) being provided on the connecting tube (9), and the booster pump (8) being fixedly mounted outside the furnace body (1).

2. The bell-type multifunctional ion nitriding furnace according to claim 1, characterized in that: The moving assembly comprises support blocks (16) welded to both ends of the outer surface of the furnace body (1); an electric telescopic rod (17) is fixedly connected to the support block (16); the output end of the electric telescopic rod (17) is fixedly connected to a fixed block (18); and the fixed block (18) is fixedly connected to the furnace cover (19).

3. The bell-type multifunctional ion nitriding furnace according to claim 2, characterized in that: U-shaped blocks (13) are fixedly connected on both sides of the outer surface of the furnace body (1), a screw rod (14) is hingedly connected to the U-shaped block (13), and a limiting bolt (15) is threadedly connected to the screw rod (14). Limiting blocks (20) are fixedly connected on both sides of the outer surface of the furnace cover (19), and a limiting groove (21) is provided on the limiting block (20).

4. The bell-type multifunctional ion nitriding furnace according to claim 3, characterized in that: A groove (23) is provided on the top end of the furnace body (1), and a protruding block (22) is fixedly connected to the bottom end of the furnace cover (19), and the protruding block (22) matches the groove (23).

5. The bell-type multifunctional ion nitriding furnace according to claim 4, characterized in that: A sealing ring (24) is provided between the protruding block (22) and the groove (23), and the sealing ring (24) is fixedly mounted on the bottom end of the groove (23).

6. The bell-type multifunctional ion nitriding furnace according to claim 2, characterized in that: A temperature sensor (5) is fixedly mounted on one side of the outer surface of the furnace body (1).

7. The bell-type multifunctional ion nitriding furnace according to claim 6, characterized in that: A controller (6) is fixedly mounted on one side of the outer surface of the furnace body (1) away from the bottom end of the temperature sensor (5), and the controller (6) is electrically connected to the temperature sensor (5), the electric telescopic rod (17), the heating ring (11), the vacuum pump (3), the booster pump (8) and the nitrogen generator (7).

8. The bell-type multifunctional ion nitriding furnace according to claim 7, characterized in that: Support legs (2) are welded around the bottom end of the furnace body (1).

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