Gear tooth surface nitriding equipment

Abstract

The utility model discloses gear tooth surface nitriding equipment, which relates to the technical field of gear processing and comprises a bottom plate and a nitriding furnace, the nitriding furnace is fixedly arranged in the middle of the upper surface of the bottom plate, an upper cover is arranged at the top of the nitriding furnace, and a gear placing frame is fixedly arranged on the lower surface of the upper cover. The nitriding furnace comprises a bottom plate, two side plates are fixedly arranged on the upper surface of the bottom plate and located on the two sides of the nitriding furnace, a lead screw is rotationally arranged between the two side plates, the rod wall of the lead screw is sleeved with a sliding plate in a threaded mode, fixing blocks are fixedly arranged on the two sides of an upper cover, and vertical plates are fixedly arranged on the lower sides of the fixing blocks. Grooves are formed in the ends, close to each other, of the sliding plate and the vertical plate, rotating rods are rotationally arranged in the grooves, a push rod is arranged between the two rotating rods, and the two ends of the push rod are rotationally connected with the corresponding rotating rods in a sleeving mode. According to the lifting device, the gear placing rack can be automatically lifted out of equipment, reloading is facilitated, manpower can be greatly saved, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of gear processing technology, specifically to a gear tooth surface nitriding device. Background Technology

[0002] In gear manufacturing, nitriding is a crucial process that improves gear hardness, wear resistance, and fatigue resistance, thereby extending gear lifespan. Currently, existing gear nitriding equipment requires manual removal of the gear holder from the machine after the nitriding process for changing the next batch of gears. However, because the holder may be exposed to high temperatures during nitriding, and the combined weight of the holder and gears is significant, manual operation not only poses safety risks but also consumes considerable manpower and time, resulting in low production efficiency. Utility Model Content

[0003] In view of the problems existing in the above-mentioned gear tooth surface nitriding equipment, this utility model is proposed.

[0004] Therefore, the purpose of this utility model is to provide a gear tooth surface nitriding device, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A gear tooth nitriding device includes a base plate and a nitriding furnace. The nitriding furnace is fixedly disposed in the middle of the upper surface of the base plate. A top cover is provided on the top of the nitriding furnace, and a gear placement rack is fixedly disposed on the lower surface of the top cover. Two side plates are fixedly disposed on the upper surface of the base plate and on both sides of the nitriding furnace. A lead screw is rotatably disposed between the two side plates. A sliding plate is threaded onto the wall of the lead screw. Fixing blocks are fixedly disposed on both sides of the top cover. A vertical plate is fixedly disposed on the lower side of the fixing blocks. A groove is provided at the near end of the sliding plate and the vertical plate. A rotating rod is rotatably disposed inside the groove. A push rod is disposed between the two rotating rods. Both ends of the push rod are rotatably sleeved with the corresponding rotating rod. A transmission mechanism for driving the two lead screws to rotate is provided on the lower outer wall of the nitriding furnace.

[0007] Preferably, the transmission mechanism includes a transmission rod and a transmission ring. A spur gear ring and a bevel gear ring are rotatably fitted onto the lower outer wall of the nitriding furnace from top to bottom. The transmission ring is movably fitted onto the outer wall of the nitriding furnace. The two sides of the transmission rod are fixedly connected to the corresponding spur gear ring and bevel gear ring, respectively. Two bevel gears are fixedly fitted onto the ends of the two lead screws near the nitriding furnace. The two bevel gears mesh with the two sides of the bevel gear ring, respectively. A support plate is fixedly installed on one side of the outer wall of the nitriding furnace. The transmission rod is rotatably mounted on the lower side of the support plate. A spur gear is fixedly fitted onto the lower end of the transmission rod. The spur gear meshes with the spur gear ring. A motor is fixedly installed on the upper surface of the support plate. The output end of the motor is fixedly connected to one end of the transmission rod.

[0008] Preferably, a crossbar is arranged parallel to the lower side of the lead screw, and the two ends of the crossbar are respectively fixedly connected to the corresponding side plates, and the lower end of the slide plate is movably sleeved with the crossbar.

[0009] Preferably, the inner wall of the top cover is provided with a sealing gasket.

[0010] Preferably, the motor is a geared motor.

[0011] Preferably, the push rod has reinforcing ribs inside.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] 1. This utility model uses a motor to drive a transmission rod, which uses the meshing transmission of a spur gear ring, a bevel gear ring, a bevel gear, and a spur gear to drive the lead screw to rotate, thereby causing the slide to move along the crossbar. Through the cooperation of the push rod and the rotating rod, the upper cover and gear placement rack are automatically lifted out of the nitriding furnace. There is no need for manual handling of the high-temperature and heavy placement rack, which greatly saves manpower and reduces safety risks.

[0014] 2. This utility model restricts the rotation of the slide plate by connecting the crossbar on the lower side of the lead screw with the slide plate, so that the slide plate can move up and down smoothly when the lead screw rotates, ensuring the stability of the entire lifting structure and ensuring that the gear placement frame can be lifted and lowered accurately and smoothly, thereby improving the reliability of the equipment operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1This is a schematic diagram of the structure of a gear tooth surface nitriding device proposed in this utility model;

[0017] Figure 2 for Figure 1 Internal structure diagram;

[0018] Figure 3 for Figure 1 A magnified schematic diagram of part A in the middle section.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Base plate; 2. Nitriding furnace; 3. Top cover; 4. Gear placement rack; 5. Fixing block; 6. Vertical plate; 7. Rotating rod; 8. Push rod; 9. Slide plate; 10. Horizontal bar; 11. Lead screw; 12. Side plate; 13. Bevel gear; 14. Bevel gear ring; 15. Transmission ring; 16. Spur gear ring; 17. Spur gear; 18. Support plate; 19. Transmission rod; 20. Motor. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] This utility model discloses a gear tooth surface nitriding device.

[0023] Example 1

[0024] Reference Figure 1-3 A gear tooth nitriding device includes a base plate 1 and a nitriding furnace 2. The nitriding furnace 2 is fixedly disposed in the middle of the upper surface of the base plate 1. A top cover 3 is provided on the top of the nitriding furnace 2. A sealing gasket is provided on the inner wall of the top cover 3 to improve the sealing between the top cover and the nitriding furnace 2. A gear placement rack 4 is fixedly disposed on the lower surface of the top cover 3. Two side plates 12 are fixedly disposed on both sides of the upper surface of the base plate 1 and on both sides of the nitriding furnace 2. A lead screw 11 is rotatably disposed between the two side plates 12. The rod wall of the lead screw 11... The slide plate 9 is threaded and connected. Fixing blocks 5 are fixed on both sides of the upper cover 3. A vertical plate 6 is fixed on the lower side of the fixing block 5. The slide plate 9 and the vertical plate 6 are both provided with grooves at their near ends. Rotating rods 7 are rotatably installed inside the grooves. Push rods 8 are provided between the two rotating rods 7. Both ends of the push rod 8 are rotatably connected to the corresponding rotating rods 7. The push rod 8 is provided with reinforcing ribs inside to make the push rod 8 more robust. The lower outer wall of the nitriding furnace 2 is provided with a transmission mechanism that drives the two lead screws 11 to rotate.

[0025] Example 2

[0026] Reference Figure 1-3The transmission mechanism includes a transmission rod 19 and a transmission ring 15. A spur gear ring 16 and a bevel gear ring 14 are sequentially rotatably fitted onto the lower outer wall of the nitriding furnace 2 from top to bottom. The transmission ring 15 is movably fitted onto the outer wall of the nitriding furnace 2. The two sides of the transmission rod 19 are fixedly connected to the corresponding spur gear ring 16 and bevel gear ring 14, respectively. Two lead screws 11 are fixedly fitted with bevel gears 13 at their ends near the nitriding furnace 2. The two bevel gears 13 are meshed with the two sides of the bevel gear ring 14, respectively. A support plate 18 is fixedly installed on one side of the outer wall of the nitriding furnace 2. The transmission rod 19 is rotatably installed on the lower side of the support plate 18. A spur gear 17 is fixedly fitted onto the lower end of the transmission rod 19. The spur gear 17 meshes with the spur gear ring 16. A motor 20 is fixedly installed on the upper surface of the support plate 18. The output end of the motor 20 is fixedly connected to one end of the transmission rod 19. The motor 20 is a geared motor, capable of providing a large and stable transmission force.

[0027] Example 3

[0028] Reference Figure 1-3 A crossbar 10 is arranged parallel to the lower side of the lead screw 11. The two ends of the crossbar 10 are fixedly connected to the corresponding side plates 12. The lower end of the slide plate 9 is movably sleeved with the crossbar 10, so that the slide plate 9 cannot rotate, that is, it can slide stably.

[0029] In this invention, during use, the gear to be nitrided is first placed on the gear placement rack 4, and the top cover 3 is closed. Due to the sealing gasket on the inner wall of the top cover 3, a relatively sealed space is formed inside the nitriding furnace 2. After the nitriding operation is completed, the motor 20 is started. The motor 20, as a reduction motor, outputs a large and stable torque, driving the transmission rod 19 to rotate. The spur gear 17 at the lower end of the transmission rod 19 meshes with the spur gear ring 16, thereby causing the spur gear ring 16 to rotate. Since the two sides of the transmission rod 19 are fixedly connected to the spur gear ring 16 and the bevel gear ring 14 respectively, the bevel gear ring 14 also rotates accordingly. The bevel gears 13 on both sides of the bevel gear ring 14 are fixedly connected to the lead screw 11. When the bevel gear ring 14 rotates, it drives the two lead screws 11 to rotate synchronously. During the rotation of the lead screw 11, the slide plate 9, which is threaded onto the lead screw 11, rotates due to the lower end being connected to... The crossbar 10 is movably connected and cannot rotate, but can only move upward along the crossbar 10. When the slide plate 9 moves upward, the rotating rod 7 in the groove drives the push rod 8 to rise. The rotating rod 7 at the other end of the push rod 8 pushes the vertical plate 6 to move upward. The vertical plate 6 is connected to the fixed block 5, which in turn slowly lifts the upper cover 3 and the gear placement rack 4 fixed on the lower surface of the upper cover 3 out of the nitriding furnace 2. At this time, the operator can safely and conveniently change the gear. After the change is completed, the motor 20 is started again. The motor reverses, causing the lead screw 11 to rotate in the opposite direction. The slide plate 9 moves downward along the crossbar 10. Through the linkage of the push rod 8 and the rotating rod 7, the upper cover 3 and the gear placement rack 4 are smoothly placed back into the nitriding furnace 2. The equipment is then turned off, and a new round of nitriding process begins. This cycle is repeated to achieve efficient and safe nitriding of gear tooth surfaces.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A gear face nitriding apparatus comprising a base plate (1) and a nitriding furnace (2), characterized in that, The nitriding furnace (2) is fixedly arranged in the middle of the upper surface of the base plate (1), the top of the nitriding furnace (2) is provided with an upper cover (3), the lower surface of the upper cover (3) is fixedly provided with a gear rack (4), the upper surface of the base plate (1) and located on both sides of the nitriding furnace (2) are fixedly provided with two side plates (12), the two side plates (12) are rotatably provided with a lead screw (11), the rod wall of the lead screw (11) is threadedly sleeved with a sliding plate (9), both sides of the upper cover (3) are fixedly provided with a fixed block (5), the lower side of the fixed block (5) is fixedly provided with a vertical plate (6), the end close to the vertical plate (6) of the sliding plate (9) is provided with a groove, the inside of the groove is rotatably provided with a rotating rod (7), the two rotating rods (7) are provided with a push rod (8), both ends of the push rod (8) are rotatably sleeved with the corresponding rotating rod (7), and the lower end outer wall of the nitriding furnace (2) is provided with a transmission mechanism for driving the rotation of the two lead screws (11).

2. The gear case of claim 1, wherein, The transmission mechanism comprises a transmission rod (19) and a transmission ring (15), the lower end outer wall of the nitriding furnace (2) is sequentially rotatably sleeved with a straight tooth ring (16) and a bevel gear ring (14) from top to bottom, the transmission ring (15) is movably sleeved on the outer wall of the nitriding furnace (2), the two sides of the transmission rod (19) are fixedly connected with the corresponding straight tooth ring (16) and bevel gear ring (14), one end of the two lead screws (11) close to the nitriding furnace (2) is fixedly sleeved with a bevel gear (13), and the two bevel gears (13) are meshingly connected with the two sides of the bevel gear ring (14). The outer wall of the nitriding furnace (2) is fixedly provided with a supporting plate (18) on one side, the transmission rod (19) is rotatably arranged on the lower side of the supporting plate (18), the lower end of the transmission rod (19) is fixedly sleeved with a straight gear (17), the straight gear (17) is meshingly connected with the straight tooth ring (16), the upper surface of the supporting plate (18) is fixedly provided with a motor (20), and the output end of the motor (20) is fixedly connected with one end of the transmission rod (19).

3. The gear case of claim 2, wherein, The lower side of the lead screw (11) is provided with a horizontal rod (10), and the two ends of the horizontal rod (10) are fixedly connected with the corresponding side plates (12).

4. The gear case of claim 1, wherein, The inner wall of the upper cover (3) is provided with a sealing gasket.

5. The gear case of claim 2, wherein, The motor (20) is a speed reducer.

6. The gear case of claim 1, wherein, The inside of the push rod (8) is provided with a reinforcing rib. The inside of the push rod (8) is provided with a reinforcing rib.

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