Induction hardened gear arrangement

Abstract

The utility model belongs to gear technical field discloses induction quenching strengthened gear device, including main gear and auxiliary gear, main gear is installed on the main shaft, and auxiliary gear is installed on the auxiliary shaft, the main gear tooth root of main gear on the both sides of main gear tooth is coated main tooth root reinforcing layer, and the main gear tooth root of auxiliary gear on the both sides of auxiliary gear tooth is provided with auxiliary tooth root reinforcing layer, positioning strip is set between the main shaft and auxiliary shaft, and the main tooth root reinforcing layer of one side of main gear, the auxiliary tooth root reinforcing layer of one side of auxiliary gear, main gear tooth root reinforcing layer, auxiliary tooth root reinforcing layer of the other side of auxiliary gear are pasted on the other side of main gear tooth root reinforcing layer, and the lubricating disc is set up, the lubricating disc is installed on the mounting frame, the utility model discloses main tooth root reinforcing layer, the synergies of auxiliary tooth root reinforcing layer and positioning strip, have improved the structural strength of gear device, effectively avoided the gear tooth crack from tooth root, improved the gear life.

Description

Technical Field

[0001] This utility model belongs to the field of gear technology, specifically an induction hardening and strengthening gear device. Background Technology

[0002] Existing juicers are driven by a motor and gear set for transmission. Juicers generate significant vibrations during operation, and the gears are subjected to high-speed operation and continuous load pressure. Although the transmission gears are induction hardened to enhance surface hardness, residual tensile stress in the tooth root transition area can easily cause the gear teeth to crack.

[0003] The relevant reference CN212346185U discloses a gearbox device for a juicer. The motor shaft is located on the left side of the gearbox body, and the motor shaft is provided with input teeth. Output teeth are installed on the right side of the gearbox body, and transmission teeth are installed in the middle of the gearbox body. The left end of the transmission teeth meshes with the input teeth, and the right end of the transmission teeth meshes with the output teeth. When the motor drives the output teeth to rotate, it also needs to pass through the intermediate transmission teeth. The three-stage gear transmission is prone to uneven load, which causes stress concentration at the tooth root, making the teeth easy to be damaged and resulting in a short service life. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an induction hardening and strengthening gear device that avoids tooth cracking and improves gear service life.

[0005] To solve the above technical problems, this utility model provides an induction hardening and strengthening gear device, including a main gear and a secondary gear. The main gear is mounted on a main shaft, and the secondary gear is mounted on a secondary shaft. A main tooth root reinforcing layer is coated on the tooth roots on both sides of the main teeth of the main gear, and a secondary tooth root reinforcing layer is provided on the tooth roots on both sides of the secondary teeth of the secondary gear. A positioning strip is provided between the main shaft and the secondary shaft. The positioning strip is attached to the main tooth root reinforcing layer on one side of the main gear and the secondary tooth root reinforcing layer on one side of the secondary gear. A lubricating disc is attached to the main tooth root reinforcing layer on the other side of the main gear and the secondary tooth root reinforcing layer on the other side of the secondary gear. The lubricating disc is mounted on a mounting bracket.

[0006] By adopting the above technical solution, the structural strength of the gear device is improved through the synergistic effect of the main tooth root reinforcement layer, the secondary tooth root reinforcement layer and the positioning strip, effectively preventing the gear teeth from cracking at the tooth root and improving the service life of the gear.

[0007] Preferably, protective sleeves are provided on the main spindle and the secondary spindle, and the protective sleeves are fixed on the assembly plate.

[0008] By adopting the above technical solution, a protective sleeve is fixedly installed on the assembly plate, and the main spindle and the auxiliary spindle pass through the protective sleeve, which facilitates the installation of the positioning strip and provides additional support for the main spindle and the auxiliary spindle to prevent the performance of the main spindle from deteriorating due to vibration during operation.

[0009] Preferably, the two ends of the positioning strip are fixedly connected to the sheaths on the main shaft and the secondary shaft, respectively.

[0010] By adopting the above technical solution, the positioning strip and the end sleeves are rigidly connected to form a continuous support structure. The surface is in contact with the main tooth root reinforcement layer and the secondary tooth root reinforcement layer, which prevents the gear from being misaligned due to vibration and wobble during operation.

[0011] Preferably, the mounting bracket and the assembly plate are provided with a main spindle hole and a secondary spindle hole, with the main spindle rotatably mounted in two main spindle holes and the secondary spindle rotatably mounted in two secondary spindle holes.

[0012] By adopting the above technical solution, the main shaft is driven by a motor, the main gear is mounted on the main shaft by a key, and the secondary gear is rotatably mounted on the secondary shaft. The main gear drives the secondary gear to rotate.

[0013] Preferably, through holes are drilled in the positioning strip.

[0014] By adopting the above technical solution, a through hole is provided on the positioning strip, which helps to dissipate the heat generated by the gear during operation.

[0015] Preferably, the outer diameter of the main tooth root reinforcement layer is connected to the outer edge of the secondary tooth root reinforcement layer, and the inner diameter is half of the main tooth root circle diameter minus the main tooth tip circle diameter.

[0016] By adopting the above technical solution, the annular main tooth root reinforcement layer forms a support structure at the main tooth root, effectively dispersing stress concentration at the main tooth root and increasing the structural strength of the main gear teeth. The edges of the main tooth root reinforcement layer and the auxiliary tooth root reinforcement layer are connected, forming a continuous annular support structure in combination with the gear clearance, preventing gear jumps and misalignments, and improving transmission efficiency.

[0017] Preferably, the outer diameter of the auxiliary tooth root reinforcing layer is half the diameter of the auxiliary tooth tip circle, and the inner diameter is half the diameter of the auxiliary tooth root circle minus the diameter of the auxiliary tooth tip circle.

[0018] By adopting the above technical solution, the annular secondary tooth root reinforcement layer forms a support structure at the secondary tooth root, effectively dispersing the stress concentration at the secondary tooth root and increasing the structural strength of the secondary gear tooth.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model improves the structural strength of the gear device through the synergistic effect of the main tooth root reinforcement layer, the secondary tooth root reinforcement layer and the positioning strip, effectively preventing the gear teeth from cracking at the tooth root and improving the service life of the gear.

[0021] 2. The positioning strip and the main and auxiliary tooth root reinforcement layers of this utility model are bonded together to ensure gear meshing accuracy, reduce stress concentration caused by off-center load, reduce gear tooth damage, and improve the operational stability of the gear device.

[0022] 3. The main spindle and the auxiliary spindle of this utility model are provided with protective sleeves, which are fixed on the assembly plate to facilitate the installation of positioning strips. At the same time, they provide additional support to the main spindle and the auxiliary spindle to prevent the performance of the main spindle and the auxiliary spindle from deteriorating due to vibration during operation. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present utility model;

[0024] Figure 2 A schematic diagram illustrating the main tooth root reinforcement layer and the secondary tooth root reinforcement layer of this utility model;

[0025] Figure 3 A schematic diagram showing the installation of a lubrication disc on the mounting bracket of this utility model;

[0026] Figure 4 This is a schematic diagram of the installation of the positioning strip of this utility model.

[0027] Drawing numbers: 1. Main gear, 2. Secondary gear, 3. Main shaft, 4. Secondary shaft, 5. Main gear tooth, 6. Main tooth root reinforcement layer, 7. Secondary gear tooth, 8. Secondary tooth root reinforcement layer, 9. Positioning strip, 10. Lubrication disc, 11. Mounting bracket, 12. Sheath, 13. Assembly plate, 14. Main shaft hole, 15. Through hole, 16. Secondary shaft hole. Detailed Implementation

[0028] like Figure 1 As shown, the induction hardening gear strengthening device includes a main gear 1 and a secondary gear 2. The main gear 1 is fixedly mounted on the main shaft 3, and the secondary gear 2 is fixedly mounted on the secondary shaft 4. Figure 2 As shown, a main tooth root reinforcing layer 6 is coated on the tooth roots of both sides of the main gear 5 on the main gear 1, and a secondary tooth root reinforcing layer 8 is provided on the tooth roots of both sides of the secondary gear 7 on the secondary gear 2; a positioning strip 9 is provided between the main shaft 3 and the secondary shaft 4. The positioning strip 9 is in contact with the main tooth root reinforcing layer 6 on one side of the main gear 1 and the secondary tooth root reinforcing layer 8 on one side of the secondary gear 2. The contact between the positioning strip 9 and the main and secondary tooth root reinforcing layers 8 ensures gear meshing accuracy, reduces stress concentration caused by off-center load, reduces tooth damage, and improves the operational stability of the gear device. A lubrication disc 10 is attached to the main tooth root reinforcing layer 6 on the other side of the main gear 1 and the secondary tooth root reinforcing layer 8 on the other side of the secondary gear 2. The lubrication disc 10 is fixedly mounted on the mounting bracket 11, as shown. Figure 3 This application improves the structural strength of the gear assembly through the synergistic effect of the main tooth root reinforcing layer 6, the secondary tooth root reinforcing layer 8, and the positioning strip 9, effectively preventing tooth cracking at the tooth root and extending gear service life. The lubrication disc 10 reduces frictional wear between the main gear 1, the secondary gear 2, and the mounting bracket 11.

[0029] Each of the main spindle 3 and the secondary spindle 4 is provided with a protective sleeve 12, and both protective sleeves 12 are fixed on the assembly plate 13. The protective sleeves 12 are fixedly installed on the assembly plate 13, and the main spindle 3 and the secondary spindle 4 are respectively inserted into the protective sleeves 12 to facilitate the installation of the positioning strip 9, and at the same time provide additional support for the main spindle 3 and the secondary spindle 4 to prevent the performance of the main spindle 3 and the secondary spindle 4 from deteriorating due to vibration during operation.

[0030] Both the mounting bracket 11 and the assembly plate 13 have main shaft holes 14 and auxiliary shaft holes 16. The two ends of the main shaft 3 are rotatably mounted in the two main shaft holes 14, and the two ends of the auxiliary shaft 4 are rotatably mounted in the two auxiliary shaft holes 16. One end of the main shaft 3 extends out of the mounting bracket 11 and connects to the motor. The main shaft 3 is driven by the motor. A main gear 1 is mounted on the main shaft 3 via a key, and a secondary gear 2 is mounted on the auxiliary shaft 4 via a key. The main gear 1 drives the secondary gear 2 to rotate.

[0031] like Figure 4 As shown, the two ends of the positioning strip 9 are fixedly connected to the sleeve 12 on the main shaft 3 and the sleeve 12 on the secondary shaft 4, respectively. The positioning strip 9 and the sleeves 12 at both ends are rigidly connected to form a continuous support structure. The surface is in contact with the main tooth root reinforcement layer 6 and the secondary tooth root reinforcement layer 8 to prevent the gear from being misaligned due to vibration and wobble during operation.

[0032] A through hole 15 is drilled in the positioning strip 9. The through hole 15 in the positioning strip 9 helps to dissipate the heat generated by the gear during operation.

[0033] The main tooth root reinforcement layer 6 is a circular ring, whose outer diameter connects to the outer edge of the secondary tooth root reinforcement layer 8, and whose inner diameter is half the diameter of the main tooth root circle minus the diameter of the main tooth tip circle. The circular ring 2 forms a support structure at the main tooth root, effectively dispersing stress concentration at the main tooth root and increasing the structural strength of the main gear tooth 5. The edges of the main tooth root reinforcement layer 6 and the secondary tooth root reinforcement layer 8 are connected, forming a continuous annular support structure in conjunction with the clearance between the main and secondary gears 2. This prevents gear misalignment and improves transmission efficiency.

[0034] The secondary tooth root reinforcement layer 8 is a circular ring II, with an outer diameter half the diameter of the secondary tooth tip circle and an inner diameter half the diameter of the secondary tooth root circle minus the diameter of the secondary tooth tip circle. The circular ring I forms a support structure at the secondary tooth root, effectively dispersing the stress concentration at the secondary tooth root and increasing the structural strength of the secondary gear tooth 7.

[0035] The main gear 1 and main shaft 3 are keyed together, and the auxiliary gear 2 and auxiliary shaft 4 are keyed together. This keying is existing technology and not shown in the diagram. The main shaft 3 is connected to the motor. The main shaft 3 is rotatably mounted between the mounting bracket 11 and the assembly plate 13. The auxiliary shaft 4 is also rotatably mounted between the mounting bracket 11 and the assembly plate 13. The motor end of the main shaft 3 extends through the mounting bracket 11 and connects to the motor. The juicing end of the auxiliary shaft 4 extends through the assembly plate 13 and connects to the blades inside the juicer housing. The mounting bracket 11, assembly plate 13, and motor are installed inside the juicer housing. When the motor is started, it drives the main gear 1 to rotate. The main gear 1 drives the auxiliary gear 2, which in turn drives the blades through the auxiliary shaft 4 to perform the juicing action. The juicer features a two-stage gear transmission, ensuring stable power output. When the main gear 1 and the auxiliary gear 2 rotate, the main tooth root reinforcing layer 6 and the auxiliary tooth root reinforcing layer 8 on both sides cover the gear teeth within the reinforcing layer. Combined with the support of the positioning strip 9, the gears will not jump or misalign. The structural strength of the gear device is improved, effectively preventing the gear teeth from cracking at the tooth root and improving the service life of the gears.

[0036] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. An induction hardening and strengthening gear device, comprising a main gear (1) and a secondary gear (2), wherein the main gear (1) is mounted on a main shaft (3) and the secondary gear (2) is mounted on a secondary shaft (4); characterized in that: The root of the main gear (1) is coated with a main tooth root reinforcement layer (6) on both sides of the tooth root of the main gear (5), and a secondary tooth root reinforcement layer (8) is provided on both sides of the tooth root of the secondary gear (2); a positioning strip (9) is provided between the main shaft (3) and the secondary shaft (4); the positioning strip (9) is attached to the main tooth root reinforcement layer (6) on one side of the main gear (1) and the secondary tooth root reinforcement layer (8) on one side of the secondary gear (2); a lubrication plate (10) is attached to the main tooth root reinforcement layer (6) on the other side of the main gear (1) and the secondary tooth root reinforcement layer (8) on the other side of the secondary gear (2); the lubrication plate (10) is mounted on the mounting bracket (11).

2. The induction hardening and strengthening gear device according to claim 1, characterized in that: The main shaft (3) and the secondary shaft (4) are respectively provided with protective sleeves (12), and the protective sleeves (12) are fixed on the assembly plate (13).

3. The induction hardening and strengthening gear device according to claim 2, characterized in that: The two ends of the positioning strip (9) are fixedly connected to the sleeves (12) on the main shaft (3) and the secondary shaft (4), respectively.

4. The induction hardening and strengthening gear device according to claim 2, characterized in that: The mounting bracket (11) and the assembly plate (13) are both provided with a main shaft hole (14) and a secondary shaft hole (16). The main shaft (3) is rotatably installed in the two main shaft holes (14), and the secondary shaft (4) is rotatably installed in the two secondary shaft holes (16).

5. The induction hardening and strengthening gear device according to claim 1, characterized in that: A through hole (15) is drilled on the positioning strip (9).

6. The induction hardening and strengthening gear device according to claim 1, characterized in that: The outer diameter of the main tooth root reinforcement layer (6) is connected to the outer edge of the secondary tooth root reinforcement layer (8), and the inner diameter is half of the main tooth root circle diameter minus the main tooth tip circle diameter.

7. The induction hardening and strengthening gear device according to claim 1, characterized in that: The outer diameter of the auxiliary tooth root reinforcing layer (8) is half the diameter of the auxiliary tooth tip circle, and the inner diameter is half the diameter of the auxiliary tooth root circle minus the diameter of the auxiliary tooth tip circle.

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