A gear heat treatment anti-deformation structure

Abstract

The present invention belongs to the technical field of gear processing, and specifically relates to a gear heat treatment anti-deformation structure, which includes a base plate and a gantry mounted thereon, a transmission component is mounted on the gantry, the transmission component is connected to a heat-conducting component, and a bevel gear is placed on the base plate; the heat-conducting component includes a rotatably adjustable shell, a pressure rod, a connecting plate, a heat-conducting copper tube, a heat-dissipating tube, a small heat-conducting arc plate, a pressure block, a pressure sleeve and a large heat-conducting arc plate. During the heat treatment process of the bevel gear, when the temperature at the root and top of the bevel gear is uneven, the large heat-conducting arc plate attached to the tooth surface of the bevel gear will conduct the temperature of the root and top of the gear to make it uniform; when the bevel gear is cooled, the small heat-conducting arc plate will absorb the heat at the root of the bevel gear, and then conduct it to the heat-conducting copper tube by the heat-conducting pad, so that the heat at the root of the bevel gear is accelerated to diffuse, and the heat dissipation rate of the root and top of the bevel gear is ensured to be consistent.

Description

Technical Field

[0001] The invention belongs to the technical field of gear processing, and in particular relates to a gear heat treatment anti-deformation structure. Background Art

[0002] In the process of gear processing, heat treatment is generally required after the gear shape processing is completed. Gear heat treatment is a process method to improve the mechanical properties and service life of gear materials through heating, heat preservation and cooling. Gear heat treatment is mainly to increase hardness, improve toughness, increase fatigue life and optimize internal structure.

[0003] During the heating process of the gear, due to the uneven temperature distribution, thermal stress will be generated inside. When these thermal stresses exceed the yield strength of the material, it will cause deformation of the gear. This deformation is mainly manifested at the top and root of the tooth. Since the top and root of the tooth are the areas with the greatest force on the gear, they are also the places where stress is concentrated, and the material thickness of the top and root of the tooth is different. During the heat treatment process, thermal stress is generated at the top and root of the tooth, which is easy to cause thermal stress concentration at the root or top of the tooth, resulting in changes in the tooth shape.

[0004] There is also a difference in cooling rate between the tooth top and the tooth root. Since the material thickness at the tooth root is greater than that at the tooth top, the cooling rate at the tooth top is greater than that at the tooth root, resulting in inconsistent contraction or expansion of the material in these areas, causing deformation. Summary of the invention

[0005] The purpose of the present invention is to provide a gear heat treatment anti-deformation structure to address the deficiencies of the prior art and to solve the technical problems in the prior art.

[0006] The object of the present invention can be achieved by the following technical solutions: a gear heat treatment anti-deformation structure, which includes a base plate and a gantry mounted thereon, a transmission component is mounted on the gantry, the transmission component is connected to the heat conduction component, and a bevel gear is placed on the base plate;

[0007] The heat-conducting component comprises a rotatable and adjustable shell, which is connected to the output end of the transmission component, and the shell is installed in the tooth groove of the bevel gear. A pressure rod is vertically slidably installed inside the shell, and a connecting plate is fixedly installed on the pressure rod. Heat-conducting copper tubes are rotatably installed at both ends of the connecting plate, and the heat-conducting copper tubes penetrate the heat dissipation tube and connect the small heat-conducting arc plate. The small heat-conducting arc plate fits the tooth root of the bevel gear. A pressure block is installed on the connecting plate, and the pressure block fits the bottom of the tooth groove of the bevel gear. A pressure sleeve is sleeved on the outside of the pressure rod, and the installation position of the top of the pressure sleeve is lower than the pressure rod. The bottom of the pressure sleeve is connected to the large heat-conducting arc plate through a connecting rod, and the large heat-conducting arc plate fits the tooth surface of the bevel gear. A fixed plate is installed inside the shell, and the fixed plate fixes the connecting plate through an electromagnetic suction cup installed thereon;

[0008] The transmission assembly presses the pressing rod and the pressing sleeve respectively through the push rod assembly.

[0009] As a further optimization or improvement of the present solution, the heat-conducting component also includes a connecting head, the transmission assembly includes a cylinder and a transmission rod, the cylinder is connected to the connecting head and the push rod assembly through the transmission rod, the connecting head is connected to the pressure plate through the mounting rod, the pressure plate is connected and cooperated with the annular groove, the connecting plate is fixedly mounted on the annular groove, the connecting ring is mounted on the connecting plate, the connecting ring is mounted on a rotating shaft, and the rotating shaft is fixedly mounted on the housing.

[0010] As a further optimization or improvement of this solution, a thermal pad is installed on the back of the thermally conductive small arc plate.

[0011] As a further optimization or improvement of the present solution, the interior of the heat dissipation tube is hollow, and an air inlet and an air outlet are respectively provided on both sides of the heat dissipation tube.

[0012] As a further optimization or improvement of this solution, the push rod assembly presses the pressure rod and the pressure sleeve through a balancing force assembly. The push rod assembly includes an L-shaped rod and a connecting roller. One end of the L-shaped rod is connected to the transmission rod, and the other end is connected to the connecting roller. The balancing force assembly includes an adjusting rod and an adjusting block slidably mounted thereon. The adjusting rod is installed on a base plate, and the adjusting block is rotatably connected to a rotating rod. A pointing plate is installed on the rotating rod. A sliding groove is provided in the rotating rod, and a slider is slidably installed in the sliding groove. Both ends of the slider press the two sides of the pressure rod through the pressure roller rod, and the connecting roller presses the slider.

[0013] As a further optimization or improvement of the present solution, an adjustment slot is provided in the adjustment rod, and an adjustment block is slidably installed in the adjustment slot.

[0014] As a further optimization or improvement of the present solution, a push plate is installed on the rotating shaft, a gasket is installed on the base plate, and the bevel gear is placed inside the gasket.

[0015] Beneficial effects of the present invention:

[0016] (1) During the heat treatment process of bevel gears, when the temperature at the root and top of the bevel gear is uneven, the large heat-conducting arc plate attached to the tooth surface of the bevel gear will conduct the temperature of the root and top of the tooth to make it uniform, avoiding the concentration of thermal stress at the root or top of the tooth causing changes in tooth shape;

[0017] When the bevel gear is cooled, the electromagnetic chuck attracts the connecting plate and fixes it, and the cylinder drives the push rod assembly to move upward, so that the large heat-conducting arc plate is separated from the tooth surface of the bevel gear. At this time, the small heat-conducting arc plate absorbs the heat at the root of the bevel gear, and then conducts it to the heat-conducting copper tube through the thermal pad. Then, the heat is ventilated into the heat dissipating tube through the air inlet on the heat dissipating tube and then discharged from the exhaust port. The heat dissipation of the heat-conducting copper tube by the heat dissipating tube accelerates the diffusion of the heat at the root of the bevel gear, ensuring that the heat dissipation rate of the root and top of the bevel gear is consistent, avoiding deformation caused by inconsistent contraction or expansion of the material in these areas due to the cooling rate of the top of the tooth being greater than the root of the tooth.

[0018] (2) The present invention releases the limit of the adjustment block by loosening the fastening bolts, and then adjusts the position of the adjustment block and the angle of the rotating rod, so that the pointing plate on the rotating rod is aligned with the center position of the pressure rod and is vertical. As the transmission assembly drives the push rod assembly to move downward, the connecting roller is inserted into the slide groove and pushes the slider to move. When the slider moves, the slider moves from the center position of the pressure rod to both ends through the pressure roller rod. At the same time, the pressure roller rod also presses the pressure rod. At this time, the force applied by the pressure roller rod to the pressure rod is a balanced force, ensuring that the large heat-conducting arc plate and the small heat-conducting arc plate can completely fit the tooth surface and tooth root of the bevel gear, ensuring the effect of the large heat-conducting arc plate and the small heat-conducting arc plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is an exploded view of the overall structure of the present invention.

[0022] Figure 3 This is the connection diagram between the heat conducting component and the bevel gear.

[0023] Figure 4 Schematic diagram of the connection structure between the pressure plate and the ring groove.

[0024] Figure 5 This is the connection diagram of the balancing force assembly and the push rod assembly.

[0025] Figure 6 This is the front view of the connection between the balance force assembly and the push rod assembly.

[0026] Figure 7 for Figure 6 A magnified view of the structure of part A.

[0027] Figure 8 Schematic diagram of the matching between the housing and the bevel gear tooth groove.

[0028] Fig. 9 Schematic diagram of the internal structure of the shell.

[0029] Fig.10 for Fig. 9 Enlarged view of the structure of part B.

[0030] Fig.11 for Fig. 9 A magnified view of the C site structure.

[0031] The following are marked in the figure: 1. base plate; 2. gantry; 3. transmission assembly; 301. cylinder; 302. transmission rod; 4. gasket; 5. balance assembly; 501. adjustment rod; 502. adjustment slot; 503. adjustment block; 504. fastening bolt; 505. rotating rod; 506. slide slot; 507. slider; 508. pointing plate; 509. roller rod; 6. bevel gear; 7. push rod assembly; 701. L-shaped rod; 702. connecting roller; 8. heat conduction assembly; 801. connector; 80 2. Ring groove; 803. Pressure plate; 804. Connecting plate; 805. Connecting ring; 806. Mounting rod; 807. Rotating shaft; 808. Push plate; 809. Shell; 810. Pressure rod; 811. Pressing sleeve; 812. Connecting rod; 813. Large heat-conducting arc plate; 814. Connecting plate; 815. Heat-conducting copper tube; 816. Heat sink; 817. Small heat-conducting arc plate; 818. Pressure block; 819. Fixed plate; 820. Electromagnetic suction cup; 821. Air inlet; 822. Exhaust port; 823. Thermal pad. DETAILED DESCRIPTION

[0032] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 11 , a gear heat treatment anti-deformation structure, which includes a base plate 1 and a gantry 2 mounted thereon, a transmission component 3 is mounted on the gantry 2, the transmission component 3 is connected to a heat conducting component 8, and a bevel gear 6 is placed on the base plate 1;

[0034] The heat-conducting component 8 includes a rotatable and adjustable shell 809, which is connected to the output end of the transmission component 3. The shell 809 is installed in the tooth groove of the bevel gear 6. A pressure rod 810 is vertically slidably installed inside the shell 809. A connecting plate 814 is fixedly installed on the pressure rod 810. Heat-conducting copper tubes 815 are rotatably installed at both ends of the connecting plate 814. The heat-conducting copper tubes 815 pass through the heat dissipation tube 816 and are connected to the heat-conducting small arc plate 817. The heat-conducting small arc plate 817 fits the tooth root of the bevel gear 6. A pressing block 818 is installed on the connecting plate 814, and the pressing block 818 fits the bottom of the tooth groove of the bevel gear 6. A pressing sleeve 811 is sleeved on the outside of the pressing rod 810, and the installation position of the top of the pressing sleeve 811 is lower than the pressing rod 810. The bottom of the pressing sleeve 811 is connected to the heat-conducting large arc plate 813 through a connecting rod 812, and the heat-conducting large arc plate 813 fits the tooth surface of the bevel gear 6. A fixed plate 819 is installed inside the housing 809, and the fixed plate 819 fixes the connecting plate 814 through an electromagnetic suction cup 820 installed thereon;

[0035] The transmission assembly 3 presses the pressing rod 810 and the pressing sleeve 811 respectively through the push rod assembly 7 .

[0036] Specifically, the heat dissipation tube 816 is hollow inside, and an air inlet 821 and an air outlet 822 are respectively provided on both sides of the heat dissipation tube 816 .

[0037] Specifically, a thermal pad 823 is installed on the back of the thermally conductive small arc plate 817 .

[0038] It should be noted that the large heat-conducting arc plate 813 and the small heat-conducting arc plate 817 are made of high thermal conductivity ceramic material. When the bevel gear 6 is heat-treated, the high thermal conductivity of the large heat-conducting arc plate 813 can effectively conduct the heat of the tooth root and tooth top of the bevel gear 6.

[0039] It should be noted that before heat treatment, the push plate 808 is moved to adjust the angle of the rotating shaft 807 so that the housing 809 on it corresponds to the cone angle of the bevel gear 6. The push rod assembly 7 and the heat conducting assembly 8 are driven downward synchronously by the transmission assembly 3 so that the housing 809 enters the tooth groove of the bevel gear 6.

[0040] As the push rod assembly 7 moves downward, the push rod assembly 7 presses the pressure rod 810 through the balancing force assembly 5; in this process, see Fig. 9 The balancing force component 5 first presses the pressure rod 810 and then presses the pressure sleeve 811. During the process of the pressure roller rod 509 pressing the pressure rod 810, the pressure rod 810 drives the connecting plate 814 to move downward, and the connecting plate 814 drives the small heat-conducting arc plate 817 on the heat-conducting copper tube 815 to move toward the tooth root position of the bevel gear 6, so that the small heat-conducting arc plate 817 fits the tooth root of the bevel gear 6. As the connecting plate 814 continues to move downward, the connecting plate 814 drives the bevel gear 6 to rotate through the small heat-conducting arc plate 817, and the small heat-conducting arc plate 817 The position of the bevel gear 6 is fine-tuned to make the housing 809 match the tooth groove of the bevel gear 6. At this time, the pressure block 818 is facing the center of the tooth groove of the bevel gear 6, and the connecting plate 814 drives the pressure block 818 to move downward synchronously. When the position adjustment of the bevel gear 6 is completed, the pressure block 818 presses the tooth groove of the bevel gear 6 again to fix the position of the tooth groove of the bevel gear 6; during the process of the pressure roller rod 509 pressing the pressure sleeve 811, the pressure sleeve 811 drives the large heat-conducting arc plate 813 to directly fit the tooth surface of the bevel gear 6 through the connecting rod 812.

[0041] During the heat treatment process of the bevel gear 6, when the temperature at the tooth root and tooth top of the bevel gear 6 is uneven, the large heat-conducting arc plate 813 attached to the tooth surface of the bevel gear 6 will conduct the temperature of the tooth root and tooth top to make it uniform, thereby avoiding the concentration of thermal stress at the tooth root or tooth top causing the tooth shape to change; when the bevel gear 6 is cooled, the electromagnetic suction cup 820 attracts the connecting plate 814 and fixes it, the cylinder 301 drives the push rod assembly 7 to move upward, the pressing sleeve 811 and the large heat-conducting arc plate 813 are reset, and the large heat-conducting arc plate 813 is separated from the tooth surface of the bevel gear 6. Since the connecting plate 814 is fixed, the small heat-conducting arc plate 817 is attached to the tooth root of the bevel gear 6. The small heat-conducting arc plate 817 absorbs the heat at the tooth root of the bevel gear 6, and then the heat is conducted to the heat-conducting copper tube 815 by the thermal pad 823, see Fig.11 Then, the air is ventilated into the heat dissipation tube 816 through the air inlet 821 on the heat dissipation tube 816, and then discharged from the exhaust port 822. The heat dissipation of the heat-conducting copper tube 815 is accelerated by the heat dissipation tube 816, so that the heat at the root position of the bevel gear 6 is accelerated to diffuse, ensuring that the heat dissipation rate of the root and the top of the tooth of the bevel gear 6 is consistent, avoiding deformation caused by inconsistent contraction or expansion of the material in these areas due to the cooling speed of the top of the tooth being greater than the root of the tooth.

[0042] Specifically, when cooling the bevel gear 6, the cylinder 301 may not be started, so that the heat-conducting large arc plate 813 is still attached to the tooth surface of the bevel gear 6. At this time, the high thermal conductivity of the heat-conducting large arc plate 813 itself can balance the cooling temperature of the tooth top and tooth root of the bevel gear 6 to avoid thermal stress. However, since the heat-conducting large arc plate 813 will heat up with the bevel gear 6 during heat treatment, the residual heat of the heat-conducting large arc plate 813 will affect the cooling speed of the bevel gear 6 during cooling. Moreover, since the area of ​​the heat-conducting large arc plate 813 is large, it is not easy to increase the cooling speed of the bevel gear 6 by cooling the heat-conducting large arc plate 813. Therefore, when cooling the bevel gear 6, the heat-conducting large arc plate 813 is removed from the tooth surface of the bevel gear 6, which can not only avoid the deformation of the bevel gear 6, but also ensure that the cooling rate of the bevel gear 6 reaches the best.

[0043] See also Figure 4-Figure 5 The heat-conducting component 8 also includes a connector 801, and the transmission component 3 includes a cylinder 301 and a transmission rod 302. The cylinder 301 is connected to the connector 801 and the push rod assembly 7 through the transmission rod 302. The connector 801 is connected to the pressure plate 803 through the mounting rod 806. The pressure plate 803 is connected and cooperated with the annular groove 802. A connecting plate 804 is fixedly mounted on the annular groove 802. A connecting ring 805 is installed on the connecting plate 804. A rotating shaft 807 is rotated on the connecting ring 805. A housing 809 is fixedly mounted on the rotating shaft 807.

[0044] Specifically, the push plate 808 is installed on the rotating shaft 807 , the backing ring 4 is installed on the base plate 1 , and the bevel gear 6 is placed inside the backing ring 4 .

[0045] It should be noted that an angle ruler is installed on the rotating shaft 807 .

[0046] See also Figure 4 , the transmission rod 302 is connected to the pressure plate 803 through the mounting rod 806, and the pressure plate 803 slides inside the annular groove 802. When the transmission assembly 3 drives the push rod assembly 7 and the heat conducting assembly 8 to move downward synchronously, the annular groove 802 first contacts the top of the bevel gear 6, and the housing 809 enters the tooth groove of the bevel gear 6. As the cylinder 301 continues to move downward, the cylinder 301 drives the push rod assembly 7 to move downward, and the cylinder 301 also drives the pressure plate 803 to slide in the annular groove 802. When the large heat conducting arc plate 813 and the small heat conducting arc plate 817 are both in contact with the tooth surface and tooth root of the bevel gear 6, the pressure plate 803 slides to the bottom of the annular groove 802 and presses the end face of the bevel gear 6 through the annular groove 802, thereby fixing the end face of the bevel gear 6 and ensuring the flatness of the end face of the bevel gear 6 during the heat treatment process. The present invention first fits the tooth surface and tooth root of the bevel gear 6 through the large heat-conducting arc plate 813 and the small heat-conducting arc plate 817 to fix the teeth and tooth grooves of the bevel gear 6, and then fixes the end face of the bevel gear 6. If the end face of the bevel gear 6 is fixed first or the teeth and end face of the bevel gear 6 are fixed at the same time, the large heat-conducting arc plate 813 and the small heat-conducting arc plate 817 are very likely to be unable to fit the tooth surface and tooth root of the bevel gear 6.

[0047] See also Figure 5-Figure 7 The push rod assembly 7 presses the pressure rod 810 and the pressure sleeve 811 through the balancing force assembly 5. The push rod assembly 7 includes an L-shaped rod 701 and a connecting roller 702. One end of the L-shaped rod 701 is connected to the transmission rod 302, and the other end is connected to the connecting roller 702. The balancing force assembly 5 includes an adjusting rod 501 and an adjusting block 503 slidably mounted thereon. The adjusting rod 501 is installed on the base plate 1, and the adjusting block 503 is rotatably connected to the rotating rod 505. The rotating rod 505 is installed with a pointing plate 508. A sliding groove 506 is provided in the rotating rod 505, and a sliding block 507 is slidably installed in the sliding groove 506. The two ends of the sliding block 507 press the two sides of the pressure rod 810 through the pressure roller rod 509 respectively, and the connecting roller 702 presses the sliding block 507.

[0048] Specifically, an adjusting slot 502 is defined in the adjusting rod 501 , and an adjusting block 503 is slidably installed in the adjusting slot 502 .

[0049] It should be noted that a fastening bolt 504 is installed on the adjusting block 503 to fix the position of the adjusting block 503, and a reset spring is installed on the slider 507, that is, after the heat treatment of the bevel gear 6 is completed and the push rod assembly 7 is evacuated from the balancing force assembly 5, the slider 507 can automatically reset.

[0050] Since the shell 809 needs to correspond to the cone angle of the bevel gear 6, that is, the inclination angle of the shell 809 is equal to the cone angle of the bevel gear 6, it is not easy for the push rod assembly 7 to apply a balancing force to the pressure rod 810, which may easily cause the large heat-conducting arc plate 813 and the small heat-conducting arc plate 817 to be difficult to fully fit the tooth surface and tooth root of the bevel gear 6.

[0051] The present invention releases the limit of the adjustment block 503 by loosening the fastening bolt 504, and then adjusts the position of the adjustment block 503 and the angle of the rotating rod 505, so that the pointing plate 508 on the rotating rod 505 is aligned with the center position of the pressure rod 810 and is vertical. As the transmission assembly 3 drives the push rod assembly 7 to move downward, the connecting roller 702 is inserted into the slide groove 506 and pushes the slider 507 to move. When the slider 507 moves, the slider 507 moves from the center position of the pressure rod 810 to both ends through the pressure roller rod 509. At the same time, the pressure roller rod 509 also presses the pressure rod 810. At this time, the force applied by the pressure roller rod 509 to the pressure rod 810 is a balanced force, ensuring that the heat-conducting large arc plate 813 and the heat-conducting small arc plate 817 can completely fit the tooth surface and tooth root of the bevel gear 6, and ensure the effect of the heat-conducting large arc plate 813 and the heat-conducting small arc plate 817.

[0052] The implementation principle of the present invention is:

[0053] Before use, place the bevel gear 6 into the backing ring 4, and move the push plate 808 to adjust the angle of the rotating shaft 807 so that the housing 809 on it corresponds to the cone angle of the bevel gear 6. Start the cylinder 301, and the cylinder 301 drives the push rod assembly 7 and the heat conducting assembly 8 to move downward synchronously through the transmission rod 302, so that the housing 809 enters the tooth groove of the bevel gear 6, and then adjust the adjustment block 503 and the rotating rod 505 so that the pointing plate 508 on the rotating rod 505 is aligned with the center position of the pressure rod 810 and vertical.

[0054] As the push rod assembly 7 moves downward, the connecting roller 702 is inserted into the slide groove 506 and pushes the slider 507 to move. When the slider 507 moves, the slider 507 moves from the center position of the pressure rod 810 from both ends through the pressure roller rod 509 and presses the pressure rod 810; in this process, see Fig. 9The pressure roller rod 509 first presses the pressure rod 810 and then presses the pressure sleeve 811. During the process of the pressure roller rod 509 pressing the pressure rod 810, the pressure rod 810 drives the connecting plate 814 to move downward, and the connecting plate 814 drives the small heat-conducting arc plate 817 on the heat-conducting copper tube 815 to move toward the tooth root position of the bevel gear 6, so that the small heat-conducting arc plate 817 fits the tooth root of the bevel gear 6. As the connecting plate 814 continues to move downward, the connecting plate 814 drives the bevel gear 6 to rotate through the small heat-conducting arc plate 817. 17 fine-tunes the position of the bevel gear 6 so that the housing 809 matches the tooth groove of the bevel gear 6. At this time, the pressing block 818 is facing the center of the tooth groove of the bevel gear 6. At the same time, the connecting plate 814 drives the pressing block 818 to move downward synchronously. When the position adjustment of the bevel gear 6 is completed, the pressing block 818 presses the tooth groove of the bevel gear 6 again to fix the tooth position; during the process of the pressing roller rod 509 pressing the pressing sleeve 811, the pressing sleeve 811 drives the heat-conducting large arc plate 813 to directly fit the tooth surface of the bevel gear 6 through the connecting rod 812;

[0055] While the cylinder 301 drives the push rod assembly 7 to move downward, the cylinder 301 also drives the pressure plate 803 to slide in the annular groove 802. When the large heat-conducting arc plate 813 and the small heat-conducting arc plate 817 are in contact with the tooth surface and tooth root of the bevel gear 6, the pressure plate 803 slides to the bottom of the annular groove 802 and presses the end face of the bevel gear 6 through the annular groove 802, thereby fixing the end face of the bevel gear 6 and ensuring the flatness of the end face of the bevel gear 6 during the heat treatment process.

[0056] During the heat treatment process of the bevel gear 6, when the temperature at the tooth root and tooth top of the bevel gear 6 is uneven, the large heat-conducting arc plate 813 attached to the tooth surface of the bevel gear 6 will conduct the temperature of the tooth root and tooth top to make it uniform, thereby avoiding the concentration of thermal stress at the tooth root or tooth top causing the tooth shape to change; when the bevel gear 6 is cooled, the electromagnetic suction cup 820 attracts the connecting plate 814 and fixes it, the cylinder 301 drives the push rod assembly 7 to move upward, the pressing sleeve 811 and the large heat-conducting arc plate 813 are reset, and the large heat-conducting arc plate 813 is separated from the tooth surface of the bevel gear 6. Since the connecting plate 814 is fixed, the small heat-conducting arc plate 817 is attached to the tooth root of the bevel gear 6. The small heat-conducting arc plate 817 absorbs the heat at the tooth root of the bevel gear 6, and then the heat is conducted to the heat-conducting copper tube 815 by the thermal pad 823, see Fig.11 Then, the air is ventilated into the heat dissipation tube 816 through the air inlet 821 on the heat dissipation tube 816, and then discharged from the exhaust port 822. The heat dissipation of the heat-conducting copper tube 815 is accelerated by the heat dissipation tube 816, so that the heat at the root position of the bevel gear 6 is accelerated to diffuse, ensuring that the heat dissipation rate of the root and the top of the tooth of the bevel gear 6 is consistent, avoiding deformation caused by inconsistent contraction or expansion of the material in these areas due to the cooling speed of the top of the tooth being greater than the root of the tooth.

[0057] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A gear heat treatment anti-deformation structure, characterized in that: It comprises a base plate (1) and a gantry (2) mounted thereon, a transmission component (3) is mounted on the gantry (2), the transmission component (3) is connected to a heat conducting component (8), and a bevel gear (6) is placed on the base plate (1); The heat-conducting component (8) comprises a rotatable and adjustable shell (809), the shell (809) being connected to the output end of the transmission component (3), the shell (809) being installed in the tooth groove of the bevel gear (6), a pressure rod (810) being installed vertically and slidably inside the shell (809), a connecting plate (814) being fixedly installed on the pressure rod (810), heat-conducting copper tubes (815) being rotatably installed at both ends of the connecting plate (814), the heat-conducting copper tubes (815) passing through the heat-dissipating tube (816) being connected to the heat-conducting small arc plate (817), the heat-conducting small arc plate (817) being fitted to the tooth root of the bevel gear (6), and the A pressing block (818) is installed on the connecting plate (814), the pressing block (818) fits the bottom of the tooth groove of the bevel gear (6), a pressing sleeve (811) is sleeved on the outside of the pressing rod (810), the installation position of the top of the pressing sleeve (811) is lower than the pressing rod (810), the bottom of the pressing sleeve (811) is connected to the heat-conducting large arc plate (813) through a connecting rod (812), the heat-conducting large arc plate (813) fits the tooth surface of the bevel gear (6), and a fixed plate (819) is installed inside the housing (809), and the fixed plate (819) fixes the connecting plate (814) through an electromagnetic suction cup (820) installed thereon; The transmission assembly (3) presses the pressing rod (810) and the pressing sleeve (811) respectively through the push rod assembly (7); During the heat treatment process of the bevel gear (6), when the temperature at the tooth root and tooth top of the bevel gear (6) is uneven, the heat-conducting large arc plate (813) attached to the tooth surface of the bevel gear (6) will conduct the temperature of the tooth root and tooth top; When the bevel gear (6) is cooled, the electromagnetic suction cup (820) attracts the connecting plate (814) and fixes it, the cylinder (301) drives the push rod assembly (7) to move upward, the pressing sleeve (811) and the large heat-conducting arc plate (813) are reset, and the large heat-conducting arc plate (813) is separated from the tooth surface of the bevel gear (6). Since the connecting plate (814) is fixed, the small heat-conducting arc plate (817) is attached to the tooth root position of the bevel gear (6), and the small heat-conducting arc plate (817) absorbs the heat at the tooth root position of the bevel gear (6).

2. The gear heat treatment anti-deformation structure according to claim 1, characterized in that: The heat-conducting component (8) further comprises a connector (801), the transmission component (3) comprises a cylinder (301) and a transmission rod (302), the cylinder (301) is connected to the connector (801) and the push rod component (7) via the transmission rod (302), the connector (801) is connected to the pressure plate (803) via the mounting rod (806), the pressure plate (803) is connected and matched with the annular groove (802), a connecting plate (804) is fixedly mounted on the annular groove (802), a connecting ring (805) is mounted on the connecting plate (804), a rotating shaft (807) is mounted on the connecting ring (805), and a housing (809) is fixedly mounted on the rotating shaft (807); The pressure plate (803) is located inside the annular groove (802) and slides.

3. The gear heat treatment anti-deformation structure according to claim 1, characterized in that: A thermal conductive pad (823) is installed on the back of the thermal conductive small arc plate (817).

4. The gear heat treatment anti-deformation structure according to claim 1, characterized in that: The heat dissipation tube (816) is hollow inside, and an air inlet (821) and an air outlet (822) are respectively provided on two sides of the heat dissipation tube (816).

5. The gear heat treatment anti-deformation structure according to claim 1, characterized in that: The push rod assembly (7) presses the pressure rod (810) and the pressure sleeve (811) through the balancing force assembly (5). The push rod assembly (7) comprises an L-shaped rod (701) and a connecting roller (702). One end of the L-shaped rod (701) is connected to the transmission rod (302), and the other end is connected to the connecting roller (702). The balancing force assembly (5) comprises an adjusting rod (501) and an adjusting block (503) slidably mounted thereon. The adjusting rod (501) is mounted on the base plate (1). The adjusting block (503) is rotatably connected to the rotating rod (505). The rotating rod (505) is mounted with a pointing plate (508). A sliding groove (506) is provided in the rotating rod (505). A sliding block (507) is slidably mounted in the sliding groove (506). Two ends of the sliding block (507) respectively press two sides of the pressure rod (810) through a pressing roller rod (509). The connecting roller (702) presses the sliding block (507).

6. The gear heat treatment anti-deformation structure according to claim 5, characterized in that: An adjustment slot (502) is provided in the adjustment rod (501), and an adjustment block (503) is slidably installed in the adjustment slot (502).

7. The gear heat treatment anti-deformation structure according to claim 2, characterized in that: A push plate (808) is mounted on the rotating shaft (807), a backing ring (4) is mounted on the base plate (1), and the bevel gear (6) is located inside the backing ring (4).

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