Gearbox nitriding furnace

Abstract

The utility model relates to the technical field of nitriding furnaces, in particular to a gear box nitriding furnace which comprises a base and a furnace body arranged on the upper surface of the base, a bearing table is arranged on one side of the furnace body, a connecting arm is rotatably arranged above the bearing table, a furnace cover is arranged below the connecting arm, and a first lifting piece is arranged above the connecting arm. A connecting arm rotation driving assembly is arranged on the bearing table, supporting legs are symmetrically arranged in the furnace body, a storage rack is placed on the supporting legs, a containing groove is formed in the top end of the storage rack, connecting cylinders are symmetrically arranged at the top of the storage rack, a guide rail assembly and a stand column are arranged on the upper surface of the base, and a moving assembly is arranged on one side of the stand column; according to the automatic opening device, the furnace cover can be automatically opened, a workpiece and a storage rack can be moved to the outside of the furnace body, time-consuming and labor-consuming workpiece taking by workers is not needed, the automation degree is high, and the working efficiency is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of nitriding furnaces, in particular to a gear box nitriding furnace. Background Art

[0002] In order to increase the wear resistance, fatigue resistance, corrosion resistance and high temperature resistance of the gearbox, the gearbox will be infiltrated with nitrogen atoms at a certain temperature in a nitriding furnace for nitriding treatment. After the furnace cover is opened, the racks and the workpieces on the racks need to be taken out from the furnace body. Usually, the inner depth of the pit nitriding furnace is long, so the workpiece removal process is time-consuming and labor-intensive, which greatly affects the work efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a gear box nitriding furnace in view of the above defects, which can open the furnace cover automatically and move the workpieces and the storage rack to the outside of the furnace body without the need for the staff to take out the workpieces in a time-consuming and laborious manner, with a high degree of automation and higher work efficiency.

[0004] The technical solution adopted by the utility model to solve the technical problem is as follows: a gearbox nitriding furnace, comprising a base and a furnace body arranged on the upper surface of the base, a bearing platform is arranged on one side of the furnace body, a connecting arm is rotatably arranged above the bearing platform, one end of the connecting arm extends to the top of the furnace body, a furnace cover that closes the furnace body is arranged below the connecting arm, a first lifting member connected to the top of the furnace cover is arranged above the connecting arm, and a connecting arm rotation driving component that drives the connecting arm to rotate is arranged on the bearing platform;

[0005] The bottom end of the furnace body is symmetrically provided with supporting feet, a shelf is placed on the supporting feet, a receiving groove is opened at the center of the top of the shelf, and connecting tubes are symmetrically provided on both sides of the receiving groove at the top of the shelf;

[0006] The upper surface of the base is symmetrically provided with guide rail assemblies and columns on both sides of the furnace body, a moving assembly transmission-connected to the guide rail assembly is provided on one side of the column, a crossbeam connected to the two columns is provided at the top of the two columns, a second lifting member is provided at the top of the crossbeam, a fixed block matching the accommodating groove is provided at the bottom of the crossbeam, the top of the fixed block is connected to the driving end of the second lifting member, and a clamping claw assembly matching the connecting tube is provided at the top of the fixed block.

[0007] Furthermore, the connecting arm rotation drive assembly includes a rotating shaft, a driven gear, a first motor, and a driving gear. The rotating shaft is arranged at the bottom end of the connecting arm and is rotatably connected to the supporting platform. The driven gear is sleeved on the outer surface of the rotating shaft. The first motor is arranged on one side of the driven gear. The driving gear is arranged on the driving end of the first motor, and the driving gear is meshed with the driven gear.

[0008] Further, the guide rail assembly includes a guide rail body disposed on the base, a guide groove formed inside the guide rail body along the length direction of the guide rail body, and optical axes symmetrically disposed at both ends inside the guide groove.

[0009] Further, the moving assembly includes at least two rollers disposed on one side of the column, and a second motor disposed on the side of the column away from the rollers. The driving end of the second motor is connected to one of the rollers, and an annular groove matching the optical axis is formed on the outer surface of the roller.

[0010] Further, the jaw assembly includes driving cylinders symmetrically disposed on both sides of the upper surface of the fixed block, a lifting rod disposed at the driving end of the driving cylinder. The driving cylinder drives the lifting rod to extend into the connecting cylinder, and limiting plates are symmetrically disposed at both ends of the lifting rod on the upper surface of the fixed block.

[0011] Further, a through hole matching the lifting rod is formed inside the connecting cylinder.

[0012] The beneficial effects of the present utility model are as follows:

[0013] Through the cooperative setting of the bearing table, connecting arm, furnace cover, first lifting member, connecting arm rotation driving assembly, support feet, storage rack, accommodation groove, connecting cylinder, guide rail assembly, column, cross beam, moving assembly, second lifting member, fixed block, and jaw assembly, after the nitrogen charging is completed, the first lifting member drives the furnace cover to rise, and the connecting arm rotation driving assembly drives the connecting arm to rotate by a certain angle, so that the furnace cover is misaligned with the furnace body. The moving assembly drives the column to move along the guide rail assembly, so that the fixed block corresponds to the storage rack. The second lifting member drives the fixed block to descend into the furnace body and enter the accommodation groove of the storage rack. The jaw assembly cooperates with the connecting cylinder to fix the fixed block and the storage rack. The second lifting member drives the storage rack and the workpiece on it to move upward from the support feet to the outside of the furnace body, and then the moving assembly drives the column to move to one end of the furnace body, and then the second lifting member places the storage rack on the ground. The present utility model can automatically open the furnace cover and move the workpiece and the storage rack to the outside of the furnace body, without the need for workers to take the parts laboriously, with high automation and higher work efficiency. Description of the Drawings

[0014] Through the following detailed description in conjunction with the drawings, the foregoing and other objects, features, and advantages of the present utility model will become obvious.

[0015] Figure 1 This is the front view of the present utility model.

[0016] Figure 2 This is Figure 1 The enlarged schematic view of the structure at A of

[0017] Figure 3 This is a cross-sectional view of the guide rail assembly of the present utility model.

[0018] Figure 4 This is a cross-sectional view of the storage rack of the present utility model.

[0019] Figure 5 This is a top view of the connection cylinder and the jaw assembly of the storage rack of the present utility model in cooperation.

[0020] Wherein: 1. Base; 2. Furnace body; 201. Support feet; 3. Loading platform; 4. Connecting arm; 5. Furnace cover; 6. First lifting member; 7. Storage rack; 701. Accommodation groove; 702. Connection cylinder; 703. Through hole; 8. Guide rail assembly; 801. Guide rail body; 802. Guide groove; 803. Optical axis; 9. Column; 10. Moving assembly; 1001. Roller; 1002. Second motor; 1003. Annular groove; 11. Cross beam; 12. Second lifting member; 13. Fixed block; 14. Jaw assembly; 1401. Driving cylinder; 1402. Lifting rod; 1403. Limiting plate; 1501. Rotating shaft; 1502. Driven gear; 1503. First motor; 1504. Driving gear. Specific embodiments

[0021] The present utility model will be further described below with reference to the accompanying drawings.

[0022] Refer to Figures 1-5 As shown, the gearbox nitriding furnace includes a base 1 and a furnace body 2 disposed on the upper surface of the base 1. A loading platform 3 is provided on one side of the furnace body 2. A connecting arm 4 is rotatably disposed above the loading platform 3. One end of the connecting arm 4 extends directly above the furnace body 2. A furnace cover 5 that closes the furnace body 2 is provided below the connecting arm 4. A first lifting member 6 connected to the top of the furnace cover 5 is provided above the connecting arm 4. The first lifting member 6 may specifically be a hydraulic cylinder, which drives the furnace cover 5 to approach or move away from the furnace body, so that the furnace body is in a closed or open state. A connecting arm rotation driving assembly for driving the connecting arm 4 to rotate is provided on the loading platform 3. The connecting arm rotation driving assembly drives the connecting arm 4 to rotate by a certain angle, so that the furnace cover 5 is misaligned with the top of the furnace body 2, and the top of the furnace body 4 is in an open state for the storage rack 7 to enter or exit the furnace body.

[0023] The connecting arm rotation drive assembly includes a rotating shaft 1501, a driven gear 1502, a first motor 1503, and a driving gear 1504. The rotating shaft 1501 is arranged at the bottom end of the connecting arm 4 and is rotatably connected to the supporting platform 3. The driven gear 1502 is sleeved on the outer surface of the rotating shaft 1501. The first motor 1503 is arranged on one side of the driven gear 1502. The driving gear 1504 is arranged on the driving end of the first motor 1503. The driving gear 1504 is meshed with the driven gear 1502. The first motor 1503 drives the driving gear 1504 to rotate. Since the driving gear 1504 is meshed with the driven gear 1502, the driven gear 1502, the rotating shaft 1501, and the connecting arm 4 are driven to rotate, so that the furnace cover 5 and the furnace body are misaligned.

[0024] Support legs 201 are symmetrically arranged at the bottom end of the furnace body 2, and a rack 7 is placed on the support legs 201. Holes are provided at the bottom end of the rack 7 for nitrogen to contact the bottom end of the workpiece. The support legs 201 support the rack 7. A receiving groove 701 is provided at the center of the top end of the rack 7. Connecting tubes 702 are symmetrically arranged on both sides of the receiving groove 701 at the top of the rack 7. A through hole 703 matching the lifting rod 1402 is provided inside the connecting tube 702. After the fixed block enters the receiving groove 701, the lifting rod 1402 of the clamping jaw assembly 14 and the through hole 703 of the connecting tube 702 are on the same central axis.

[0025] On the upper surface of the base 1, guide rail assemblies 8 and columns 9 are symmetrically arranged on both sides of the furnace body 2. A moving assembly 10 connected to the guide rail assembly 8 is arranged on one side of the column 9. A crossbeam 11 connected to the two columns 9 is arranged at the top of the two columns 9. A second lifting member 12 is arranged at the top of the crossbeam 11. The second lifting member 12 can also be a hydraulic cylinder. A fixed block 13 matching the accommodating groove 701 is arranged at the bottom of the crossbeam 11. The top of the fixed block 13 is connected to the driving end of the second lifting member 12. A clamping claw assembly 14 matching the connecting cylinder 702 is arranged at the top of the fixed block 13. The moving assembly 10 drives the column 9 to move back and forth along the guide rail assembly, so that the clamping claw assembly 14 is connected to the furnace The second lifting member 12 drives the fixing block 13 and the clamping jaw assembly 14 to descend into the furnace body 2, and the clamping jaw assembly 14 cooperates with the connecting tube 702 to fix the fixing block 13 and the rack 7. The second lifting member 12 drives the rack 7 and the upper workpiece to move upward from the supporting foot 201 to the outside of the furnace body 2, and then the moving assembly 10 drives the column 9 to move to one end of the furnace body 2, and then the second lifting member 12 places the rack 7 on the ground. The utility model can open the furnace cover 5 by itself and move the workpiece and the rack 7 to the outside of the furnace body 2, without the need for the staff to take the workpieces in a time-consuming and laborious manner, with a high degree of automation and higher work efficiency.

[0026] The guide rail assembly 8 includes a guide rail main body 801 provided on the base 1, a guide groove 802 opened inside the guide rail main body 801 along the length direction of the guide rail main body 801, and optical axes 803 symmetrically arranged at both ends inside the guide groove 802. The moving assembly 10 includes at least two rollers 1001 provided on one side of the column 9, and a second motor 1002 provided on the side of the column 9 away from the rollers 1001. The driving end of the second motor 1002 is connected to one of the rollers 1001. An annular groove 1003 matching the optical axis 803 is opened on the outer surface of the roller 1001. The roller 101 cooperates with the optical axis 803 through the annular groove 1003 and stably reciprocates inside the guide rail main body 801. The second motor 1002 drives the roller to move along the optical axis 803, driving the column 9 to move horizontally along the guide rail main body 801.

[0027] The jaw assembly 14 includes driving cylinders 1401 symmetrically arranged on both sides of the upper surface of the fixed block 13, a lifting rod 1402 provided at the driving end of the driving cylinder 1401. The driving cylinder 1401 drives the lifting rod 1402 to extend into the connecting cylinder 702. Limiting plates 1403 are symmetrically arranged at both ends of the lifting rod 1402 on the upper surface of the fixed block 13. After the through hole 703 of the lifting rod 1402 corresponds to the connecting cylinder 702, the driving cylinder 1401 drives the lifting rod 1402 to move towards the connecting cylinder 702 side and pass through the through hole 703. When the second lifting member 12 drives the fixed block 13 to move upward, the lifting rod 1402 lifts the connecting cylinder 702 and drives the storage rack 7 to the outside of the furnace body 2.

[0028] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention falls within the protection scope of the present invention.

Claims

1. Nitriding furnace for gearbox, comprising a base (1) and a furnace body (2) arranged on the upper surface of the base (1), characterized in that: A bearing platform (3) is arranged on one side of the furnace body (2); a connecting arm (4) is rotatably arranged above the bearing platform (3); one end of the connecting arm (4) extends to the top of the furnace body (2); a furnace cover (5) is arranged below the connecting arm (4) to close the furnace body (2); a first lifting member (6) connected to the top of the furnace cover (5) is arranged above the connecting arm (4); and a connecting arm rotation driving component for driving the connecting arm (4) to rotate is arranged on the bearing platform (3); Support legs (201) are symmetrically arranged at the bottom of the furnace body (2), a storage rack (7) is placed on the support legs (201), a receiving groove (701) is provided at the center of the top of the storage rack (7), and connecting tubes (702) are symmetrically arranged on both sides of the receiving groove (701) at the top of the storage rack (7); The upper surface of the base (1) is symmetrically provided with guide rail assemblies (8) and columns (9) on both sides of the furnace body (2); a moving assembly (10) connected to the guide rail assembly (8) is provided on one side of the column (9); a crossbeam (11) connected to the two columns (9) is provided at the top of the two columns (9); a second lifting member (12) is provided at the top of the crossbeam (11); a fixed block (13) matching the accommodating groove (701) is provided at the bottom of the crossbeam (11); the top of the fixed block (13) is connected to the driving end of the second lifting member (12); and the top of the fixed block (13) is provided with a clamping claw assembly (14) matching the connecting tube (702).

2. The nitriding furnace for gearbox according to claim 1, wherein: The connecting arm rotation driving assembly comprises a rotating shaft (1501), a driven gear (1502), a first motor (1503), and a driving gear (1504); the rotating shaft (1501) is arranged at the bottom end of the connecting arm (4) and is rotationally connected to the supporting platform (3); the driven gear (1502) is sleeved on the outer surface of the rotating shaft (1501); the first motor (1503) is arranged on one side of the driven gear (1502); the driving gear (1504) is arranged on the driving end of the first motor (1503); and the driving gear (1504) is meshed with the driven gear (1502).

3. The nitriding furnace for a gearbox according to claim 1, wherein: The guide rail assembly (8) comprises a guide rail body (801) arranged on a base (1), a guide groove (802) provided inside the guide rail body (801) along the length direction of the guide rail body (801), and optical axes (803) symmetrically arranged at both ends of the guide groove (802).

4. The nitriding furnace for gearbox according to claim 3, characterized in that: The moving assembly (10) comprises at least two rollers (1001) arranged on one side of the column (9), and a second motor (1002) arranged on a side of the column (9) away from the rollers (1001), wherein a driving end of the second motor (1002) is connected to one of the rollers (1001), and an annular groove (1003) matching the optical axis (803) is formed on the outer surface of the roller (1001).

5. The gearbox nitriding furnace according to claim 1, characterized in that: The clamping jaw assembly (14) includes driving cylinders (1401) symmetrically arranged on both sides of the upper surface of the fixed block (13), a lifting rod (1402) arranged at the driving end of the driving cylinder (1401), the driving cylinder (1401) drives the lifting rod (1402) to extend into the inside of the connecting cylinder (702), and limiting plates (1403) are symmetrically arranged at both ends of the lifting rod (1402) on the upper surface of the fixed block (13).

6. The nitriding furnace for a gearbox according to claim 1, characterized in that: A through hole (703) matching the lifting rod (1402) is formed inside the connecting cylinder (702).

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