Uniform quenching device for gear assembly

Abstract

According to the technical scheme, the gear assembly uniform quenching device is characterized in that the gear assembly uniform quenching device comprises a base, a plurality of supporting columns are fixedly installed on the top face of the base, and a quenching box is fixedly installed on the top faces of the supporting columns; the quenching assembly is arranged in the quenching box and used for cooling and quenching the gear, and the quenching assembly comprises a fixing frame which is fixedly mounted in the quenching box and used for fixing the gear in the quenching box; through mutual cooperative use of the base, the quenching box, the fixing frame, the rotating hole, the rotating column, the placing disc, the rotating column, a rotating block, blades, a rotating hole, a cam groove, a moving column, a movable groove, a positioning groove and steel balls, a gear can intermittently enter water, the cooling speed is reduced, and the situation that the gear surface is rapidly hardened due to the fact that the gear temperature is high and the cooling speed is too high is prevented; and the internal cooling speed is not enough, so that the overall hardening depth and hardness uniformity are influenced.

Description

Technical Field

[0001] The invention relates to the technical field of gear quenching, and in particular to a uniform quenching device for a gear assembly. Background Art

[0002] Gears refer to mechanical components with teeth on the rim that can continuously mesh to transmit motion and power. The purpose of gear quenching is to transform the supercooled austenite into martensite or bainite to obtain martensite or bainite structure, and then temper it at different temperatures. Gear quenching equipment mainly uses high-frequency induction heating technology. By placing the workpiece into the inductor (coil), when an alternating current of a certain frequency is passed through the inductor, an alternating magnetic field is generated around it. The electromagnetic induction effect of the alternating magnetic field causes a closed induced current, eddy current, to be generated in the workpiece. The distribution of the induced current on the cross section of the workpiece is very uneven, and the current density on the surface of the workpiece is very high, which gradually decreases inward. This phenomenon is called skin effect. The electrical energy of the high-density current on the surface of the workpiece is converted into thermal energy, which increases the temperature of the surface, that is, surface heating is achieved. The higher the current frequency, the greater the difference in current density between the surface and the interior of the workpiece, and the thinner the heating layer. After the temperature of the heating layer exceeds the critical point temperature of the steel, it is quickly cooled to achieve surface quenching.

[0003] In the prior art, since quenching is to change the surface structure of the gear by rapid cooling, thereby improving its hardness and wear resistance, during the quenching process, the gear is heated to a certain temperature and then quickly immersed in water for cooling. When the gear is directly placed in water for rapid cooling, due to the fast cooling speed of water, the gear may cause the surface of the gear to harden rapidly at a high temperature stage, while the interior has not yet reached a sufficient cooling speed, thereby affecting the overall hardening depth and hardness uniformity, and easily causing the gear to shrink rapidly in the temperature range of the martensitic transformation temperature and below, thereby causing cracks in the gear. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a uniform quenching device for a gear assembly to solve the problems raised in the above background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A uniform quenching device for a gear assembly comprises a base, a plurality of support columns are fixedly mounted on the top surface of the base, a quenching box is fixedly mounted on the top surfaces of the plurality of support columns; a quenching assembly is arranged inside the quenching box and is used for cooling and quenching the gear, the quenching assembly comprises: a fixing frame, the fixing frame is fixedly mounted inside the quenching box, a rotating hole is provided on the top surface of the fixing frame, a rotating column is fixedly sleeved on the inner circular wall surface of the rotating hole, a rotating hole is provided on the top surface of the rotating column, a cam groove is provided on the top surface of the rotating column, a rotating column is movably sleeved on the inner circular wall surface of the rotating hole, a rotating block is fixedly mounted on the bottom surface of the rotating column, a plurality of blades are fixedly mounted on the outer circular wall surface of the rotating block, A placing plate is fixedly installed on the top surface of the rotating column, a mounting ring is fixedly sleeved on the outer circular wall surface of the rotating column, a moving column is fixedly installed on the bottom surface of the mounting ring, a movable groove is provided on the bottom surface of the moving column, a positioning groove is provided on the inner circular wall surface of the movable groove, a steel ball is movably sleeved on the inner circular wall surface of the positioning groove, an operating hole is provided on one side of the quenching box, and a blocking column is movably sleeved inside the operating hole; a flow component for making water flow is provided on the bottom surface of the quenching box; a cooling component for cooling water is provided on the top surface of the base; a power component for making water impact the blades is provided on the top surface of the base; a water spray component for synchronously cooling the gear surface is provided on the top surface of the quenching box.

[0007] By adopting the above technical scheme, a quenching box is set up. When the staff quenches the gear, the gear is placed on the top surface of the placement disk, and water is put into the quenching box. When the gear is heated, the water is allowed to flow through the power component, so that when the water enters the interior of the quenching box, an impact force is generated to impact the blades, and then the blades will drive the rotating block, the rotating column, the placement disk and the moving column to rotate. Since the top surface of the rotating column is circular, and the cam groove is opened on the top surface of the rotating column, half of the circle is in the shape of a convex block, and the other half is concave, and then the moving column is in contact with the cam groove. When the moving column rotates, it moves along the cam groove. When the moving column moves to the concave position, the position of the moving column is lowered, which will also lower the positions of the rotating column and the placement disk, and then the gear on the top surface of the placement disk will enter the water for cooling. When the moving column rotates to the protrusion, the rising position of the moving column will drive the rotating column and the placement plate to rise, and then the gear can be moved out of the water. When the gear is directly placed in the water for rapid cooling, the low-temperature cooling speed of the water is very fast, which can easily cause the gear to shrink rapidly within the temperature range of the martensite transformation temperature and below, thereby generating cracks. Then, the continuous rotation of the blade drives the rotating column, the placement plate and the moving column to rotate, so that the gear can intermittently enter the water to reduce the cooling speed, and prevent the gear temperature from being high and the cooling speed from being too high, resulting in rapid hardening of the gear surface while the internal cooling speed has not yet reached a sufficient cooling speed, thereby affecting the overall hardening depth and hardness uniformity. When it is necessary to stop the lifting of the placement plate, the blocking column can be passed through the operating hole and one end of it can be extended under the placement plate to prevent the placement plate from descending.

[0008] Preferably, the flow component includes: a water outlet hole, the water outlet hole is opened on the bottom surface of the quenching box, the inner circular wall surface of the water outlet hole is fixedly sleeved with a water outlet pipe, the top surface of the base is fixedly installed with a support frame, the interior of the support frame is fixedly installed with a cooling bin, one side of the cooling bin is opened with a mounting hole, and the mounting hole is fixedly sleeved with the water outlet pipe.

[0009] By adopting the above technical solution, through the water outlet pipe, when the gear is cooled and quenched inside the quenching box, the water inside the quenching box will enter the cooling chamber through the water outlet pipe, so that the water inside the quenching box can flow, preventing the water inside the quenching box from being stagnant. After cooling the gear, the water temperature rises.

[0010] Preferably, the cooling component includes: a mounting frame, wherein the mounting frame is arranged on the top surface of the base, the mounting frame is fixedly mounted on the bottom surface of the cooling chamber, a heat conduction hole is opened on the inner bottom surface of the cooling chamber, a heat conduction plate is fixedly sleeved inside the heat conduction hole, and a heat dissipation fan is fixedly sleeved inside the mounting frame.

[0011] By adopting the above technical solution, through the setting of the heat dissipation fan, when water enters the interior of the cooling chamber, the heat in the water will affect the heat transfer plate, and then the heat transfer plate is kept at a low temperature by using the heat dissipation fan, thereby facilitating the cooling of the water heated after the gear quenching.

[0012] Preferably, the power assembly comprises: a circulating water pump, the circulating water pump is fixedly mounted on the top surface of the base, a drainage hole is provided on one side of the cooling chamber, a drainage pipe is fixedly sleeved on the inner circular wall of the drainage hole, the drainage pipe is fixedly sleeved on the water inlet of the circulating water pump, a flow pipe is fixedly sleeved on the outer circular wall of the water outlet of the circulating water pump, a solenoid valve is fixedly sleeved on the outer circular wall of the flow pipe, a circulating pipe is fixedly sleeved on the inner circular wall of the solenoid valve, a fixing hole is provided on the outer circular wall of the circulating pipe, a water inlet pipe is fixedly sleeved on the inner circular wall of the fixing hole, a water inlet hole is provided on one side of the quenching box, and the water inlet pipe is fixedly sleeved on the water inlet hole.

[0013] By adopting the above technical solution, through the flow pipe set, when the water is cooled inside the cooling chamber, the water inside the cooling chamber can be pumped out by using a circulating water pump, and at the same time, the solenoid valve is opened to allow water to enter the inside of the circulation pipe through the flow pipe and the solenoid valve, and then the water will be re-sprayed into the inside of the quenching box through the water inlet pipe, and then the sprayed water will generate water flow to impact the blades, so that the blades drive the rotating block, the rotating column and the placement plate to rotate, so as to facilitate the circulation cooling of the water for quenching the gear while allowing the gear to enter the water intermittently. At the same time, every time the gear enters the water, the quenching water can always remain in a cold water state to prevent the quenching water temperature from being affected by the heated gear and causing the temperature to rise, resulting in uneven cooling speed of the gear, and at the same time prevent the water temperature from being too high and the gear staying in the high temperature stage for too long, which may cause excessive tensile stress inside the gear, thereby inducing cracks and expanding the cracks that have already formed.

[0014] Preferably, the water spray assembly includes: a spray box, which is arranged on the top surface of the quenching box, the outer circular wall surface of the circulation pipe is provided with a diversion hole, the inner circular wall surface of the diversion hole is fixedly sleeved with a hose, the top surface of the quenching box is provided with a limiting frame, the bottom surface of the limiting frame is fixedly installed with the top surface of the spray box, the top surface of the limiting frame is provided with a stabilizing hole, the top surface of the spray box is provided with a connecting hole, the hose passes through the stabilizing hole and is fixedly sleeved with the connecting hole, and the bottom surface of the spray box is provided with a plurality of water flow holes.

[0015] By adopting the above technical solution, through the spray box that is set up, when the gear is quenching, the water in the circulation pipe will enter the interior of the spray box through the hose, and flow out through the water hole to spray the gear, preventing the heat inside the gear from continuing to be transferred to the surface when the gear is intermittently discharging water, causing the surface temperature to rise again.

[0016] Preferably, a positioning frame is fixedly installed on the top surface of the quenching box, a lifting hole is opened on one side of the positioning frame, a rotating groove is opened on the inner bottom surface of the lifting hole, a circular through hole is opened on the top surface of the positioning frame, a screw rod is movably sleeved on the inner circular wall surface of the circular through hole, the screw rod is movably sleeved on the rotating groove, a stepper motor is fixedly installed on the top surface of the positioning frame, the driving shaft of the stepper motor is fixedly installed on the screw rod, and a threaded hole is opened on the top surface of the limiting frame, and the threaded hole is threadedly connected to the screw rod.

[0017] By adopting the above technical solution, by setting up a limiting frame and by using a stepper motor, the rotation of the driving shaft of the stepper motor will drive the screw to rotate, so that the limiting frame drives the spray box to move downward, thereby facilitating the adjustment of the spray distance of the spray box to the gear.

[0018] Preferably, a filter plate is fixedly installed inside the quenching box, and a plurality of filter holes are opened on one side of the filter plate.

[0019] By adopting the above technical solution, the water after quenching is filtered.

[0020] Preferably, a support block is fixedly mounted on the top surface of the limiting frame, a movable hole is opened on one side of the support block, and the movable hole is movably connected to the hose.

[0021] By adopting the above technical solution, the hose is supported.

[0022] In summary, the present invention mainly has the following beneficial effects:

[0023] The base, quenching box, fixing frame, rotating hole, rotating column, placing plate, rotating column, rotating block, blades, rotating hole, cam groove, moving column, movable groove, positioning groove and steel balls are used in coordination with each other. The rotating column, placing plate and moving column are driven to rotate by continuous rotation of the blades, so that the gears can intermittently enter the water to reduce the cooling speed, prevent the gear temperature from being high and the cooling speed from being too high, resulting in rapid hardening of the gear surface while the interior has not yet reached a sufficient cooling speed, thereby affecting the overall hardening depth and hardness uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the quenching box structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the rotating column of the present invention;

[0027] Figure 4It is a schematic diagram of the structure of the mobile column of the present invention;

[0028] Figure 5 yes Figure 4 Schematic diagram of the local structure of A;

[0029] Figure 6 It is a schematic diagram of the cooling chamber structure of the present invention;

[0030] Figure 7 It is a schematic diagram of the hose structure of the present invention;

[0031] Figure 8 It is a schematic diagram of the positioning frame structure of the present invention;

[0032] Fig. 9 It is a schematic diagram of the structure of the spray box of the present invention;

[0033] Fig.10 It is a schematic diagram of the installation frame structure of the present invention.

[0034] Figure numerals: 1, base; 2, support column; 3, quenching box; 4, fixed frame; 5, rotating hole; 6, rotating column; 7, placing plate; 8, rotating column; 9, rotating block; 10, blade; 11, rotating hole; 12, cam groove; 13, operating hole; 14, blocking column; 15, mounting ring; 16, moving column; 17, movable groove; 18, positioning groove; 19, steel ball; 20, water outlet hole; 21, water outlet pipe; 22, support frame; 23, cooling chamber; 24, mounting hole; 25, heat conduction hole; 26, heat conduction plate; 27, mounting frame; 28, Cooling fan; 29, circulating water pump; 30, drain hole; 31, drain pipe; 32, flow pipe; 33, solenoid valve; 34, circulating pipe; 35, fixing hole; 36, water inlet pipe; 37, water inlet hole; 38, diversion hole; 39, hose; 40, limiting frame; 41, stabilizing hole; 42, spray box; 43, connecting hole; 44, water flow hole; 45, positioning frame; 46, lifting hole; 47, rotating groove; 48, screw rod; 49, stepping motor; 50, threaded hole; 51, filter plate; 52, filter hole; 53, support block; 54, movable hole. DETAILED DESCRIPTION

[0035] 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.

[0036] Example 1: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4and Figure 5A uniform quenching device for a gear assembly comprises a base 1, a plurality of support columns 2 are fixedly mounted on the top surface of the base 1, a quenching box 3 is fixedly mounted on the top surfaces of the plurality of support columns 2, a quenching assembly is arranged inside the quenching box 3 for cooling and quenching the gear, the quenching assembly comprises a fixing frame 4, the fixing frame 4 is fixedly mounted inside the quenching box 3, a rotating hole 5 is provided on the top surface of the fixing frame 4, a rotating column 8 is fixedly sleeved on the inner circumferential wall surface of the rotating hole 5, a rotating hole 11 is provided on the top surface of the rotating column 8, a cam groove 12 is provided on the top surface of the rotating column 8, a rotating column 6 is movably sleeved on the inner circumferential wall surface of the rotating hole 11, a rotating block 9 is fixedly mounted on the bottom surface of the rotating column 6, a plurality of blades 10 are fixedly mounted on the outer circumferential wall surface of the rotating block 9, and a rotating column 6 is provided on the top surface. A placing plate 7 is fixedly installed, a mounting ring 15 is fixedly sleeved on the outer circumferential wall of the rotating column 6, a moving column 16 is fixedly installed on the bottom surface of the mounting ring 15, a movable groove 17 is provided on the bottom surface of the moving column 16, a positioning groove 18 is provided on the inner circumferential wall surface of the movable groove 17, a steel ball 19 is movably sleeved on the inner circumferential wall surface of the positioning groove 18, an operating hole 13 is provided on one side of the quenching box 3, a blocking column 14 is movably sleeved inside the operating hole 13, a flow component for making water flow is provided on the bottom surface of the quenching box 3, a cooling component for cooling water is provided on the top surface of the base 1, a power component for making water impact the blades 10 is provided on the top surface of the base 1, and a water spray component for synchronously cooling the gear surface is provided on the top surface of the quenching box 3. The quenching box 3, when the staff quenches the gear, by placing the gear on the top surface of the placement plate 7, and putting water inside the quenching box 3, when the gear is heated, the water is allowed to flow through the power component, so that when the water enters the inside of the quenching box 3, an impact force is generated to impact the blade 10, and then the blade 10 will drive the rotating block 9, the rotating column 6, the placement plate 7 and the moving column 16 to rotate. Since the top surface of the rotating column 8 is circular, and the cam groove 12 is opened on the top surface of the rotating column 8, half of the circle is convex and the other half is concave, and then the moving column 16 is in contact with the cam groove 12. When the moving column 16 rotates, it moves along the cam groove 12. When the moving column 16 moves to the concave position, the position of the moving column 16 is lowered, which will cause the rotating column 6 to rotate. The position of the placing plate 7 is lowered, and then the gear on the top of the placing plate 7 enters the water for cooling. When the moving column 16 rotates to the protrusion, the rising position of the moving column 16 drives the rotating column 6 and the placing plate 7 to rise, and then the gear can be moved out of the water. When the gear is directly placed in the water for rapid cooling, the low-temperature cooling speed of the water is very fast, which can easily cause the gear to shrink rapidly within the temperature range of the martensitic transformation temperature and below, thereby generating cracks. Then, the rotating column 6, the placing plate 7 and the moving column 16 are driven to rotate by the continuous rotation of the blade 10, so that the gear can intermittently enter the water to reduce the cooling speed, and prevent the gear temperature from being high and the cooling speed from being too high, resulting in rapid hardening of the gear surface while the internal cooling speed has not yet reached a sufficient level.Thus, the overall hardening depth and hardness uniformity are affected. When the placement tray 7 needs to be stopped from being lifted, the placement tray 7 can be stopped from being lowered by inserting the blocking column 14 through the operation hole 13 and extending one end of the blocking column 14 under the placement tray 7.

[0037] Embodiment 2: Based on the above embodiment 1, reference Figure 1 , Figure 2 , Figure 6 , Figure 7 and Fig.10 The flow component includes a water outlet 20, which is provided on the bottom surface of the quenching box 3. A water outlet pipe 21 is fixedly sleeved on the inner wall of the water outlet 20. A support frame 22 is fixedly installed on the top surface of the base 1. A cooling chamber 23 is fixedly installed inside the support frame 22. A mounting hole 24 is provided on one side of the cooling chamber 23. The mounting hole 24 is fixedly sleeved with the water outlet pipe 21. Through the provided water outlet pipe 21, when the gear is cooled and quenched inside the quenching box 3, the water inside the quenching box 3 will enter the inside of the cooling chamber 23 through the water outlet pipe 21, so that the water inside the quenching box 3 flows, thereby preventing the inside of the quenching box 3 from being quenched. The water is still, and the water temperature rises after cooling the gears. The cooling component includes a mounting frame 27, which is arranged on the top surface of the base 1. The mounting frame 27 is fixedly installed on the bottom surface of the cooling chamber 23. A heat conduction hole 25 is opened on the inner bottom surface of the cooling chamber 23. A heat conduction plate 26 is fixedly sleeved inside the heat conduction hole 25. A heat dissipation fan 28 is fixedly sleeved inside the mounting frame 27. Through the heat dissipation fan 28, when water enters the interior of the cooling chamber 23, the heat in the water will affect the heat conduction plate 26, and then the heat conduction plate 26 is kept at a low temperature by using the heat dissipation fan 28, so as to facilitate cooling of the water that has heated up after the gears are quenched.

[0038] Example 3: Reference Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10The power assembly includes a circulating water pump 29, which is fixedly mounted on the top surface of the base 1. A drainage hole 30 is provided on one side of the cooling chamber 23. A drainage pipe 31 is fixedly sleeved on the inner wall of the drainage hole 30. The drainage pipe 31 is fixedly sleeved on the water inlet of the circulating water pump 29. A flow pipe 32 is fixedly sleeved on the outer wall of the water outlet of the circulating water pump 29. A solenoid valve 33 is fixedly sleeved on the outer wall of the flow pipe 32. A circulating pipe 34 is fixedly sleeved on the inner wall of the solenoid valve 33. A fixing hole 35 is provided on the outer wall of the circulating pipe 34. A water inlet pipe 36 is fixedly sleeved on the inner wall of the fixing hole 35. A quenching box 3 is provided on one side. There is a water inlet hole 37, and the water inlet pipe 36 is fixedly connected with the water inlet hole 37. Through the flow pipe 32, when the water is cooled in the cooling chamber 23, the water in the cooling chamber 23 can be pumped out by using the circulating water pump 29, and the solenoid valve 33 is opened at the same time to allow the water to enter the circulation pipe 34 through the flow pipe 32 and the solenoid valve 33, and then the water will be re-sprayed into the interior of the quenching box 3 through the water inlet pipe 36, and then the sprayed water will generate water flow to impact the blade 10, so that the blade 10 drives the rotating block 9, the rotating column 6 and the placement plate 7 to rotate, so that the gear can be intermittently cooled while the water for gear quenching is circulated and cooled. Enter the water, at the same time, so that every time the gear enters the water, the quenching water can always remain in a cold water state, to prevent the quenching water temperature from being affected by the heated gear, causing the temperature to rise and causing the cooling speed of the gear to be uneven, and to prevent the water temperature from being too high and the gear staying in the high temperature stage for too long, which may cause excessive tensile stress inside the gear, thereby inducing cracks and expanding the cracks that have already formed. The water spray assembly includes a spray box 42, which is arranged on the top surface of the quenching box 3, and the outer circumferential wall surface of the circulation pipe 34 is provided with a diverter hole 38, and the inner circumferential wall surface of the diverter hole 38 is fixedly sleeved with a hose 39, and the top of the quenching box 3 A limiting frame 40 is provided on the surface, and the bottom surface of the limiting frame 40 is fixedly installed with the top surface of the spray box 42. A stabilizing hole 41 is opened on the top surface of the limiting frame 40, and a connecting hole 43 is opened on the top surface of the spray box 42. The hose 39 passes through the stabilizing hole 41 and is fixedly connected with the connecting hole 43. A plurality of water holes 44 are opened on the bottom surface of the spray box 42. Through the spray box 42, when the gear is quenching, the water in the circulation pipe 34 will enter the interior of the spray box 42 through the hose 39, and flow out through the water holes 44 to spray the gear, so as to prevent the heat inside the gear from continuing to be transferred to the surface when the gear is intermittently discharging water, causing the surface temperature to rise.

[0039] Embodiment 4: Based on the above embodiment 1, 2 or 3, reference Figure 1 , Figure 2 , Figure 7 and Figure 8A positioning frame 45 is fixedly installed on the top surface of the quenching box 3, a lifting hole 46 is opened on one side of the positioning frame 45, a rotating groove 47 is opened on the inner bottom surface of the lifting hole 46, a circular through hole is opened on the top surface of the positioning frame 45, a screw rod 48 is movably sleeved on the inner wall surface of the circular through hole, and the screw rod 48 is movably sleeved with the rotating groove 47, a stepping motor 49 is fixedly installed on the top surface of the positioning frame 45, and the driving shaft of the stepping motor 49 is fixedly installed with the screw rod 48, and a threaded hole 50 is opened on the top surface of the limiting frame 40, and the threaded hole 50 is threadedly connected with the screw rod 48 Then, by setting up the limiting frame 40, by using the stepping motor 49, the rotation of the driving shaft of the stepping motor 49 will drive the screw 48 to rotate, so that the limiting frame 40 drives the spray box 42 to move downward, so as to facilitate the adjustment of the spray distance of the spray box 42 to the gear. A filter plate 51 is fixedly installed inside the quenching box 3, and a plurality of filter holes 52 are opened on one side of the filter plate 51. A support block 53 is fixedly installed on the top surface of the limiting frame 40, and a movable hole 54 is opened on one side of the support block 53. The movable hole 54 is movably connected to the hose 39.

[0040] Working principle: Please refer to Figure 1-Figure 10 As shown, through the quenching box 3, when the staff quenches the gear, the gear is placed on the top surface of the placement disk 7, and water is placed inside the quenching box 3. When the gear is heated, the water is allowed to flow through the power component, so that when the water enters the interior of the quenching box 3, an impact force is generated to impact the blade 10, and then the blade 10 will drive the rotating block 9, the rotating column 6, the placement disk 7 and the moving column 16 to rotate. Since the top surface of the rotating column 8 is circular, and the cam groove 12 is opened on the top surface of the rotating column 8, half of the circle is in the shape of a convex block, and the other half is concave, and then the moving column 16 is in contact with the cam groove 12. When the moving column 16 rotates, it moves along the cam groove 12. When the moving column 16 moves to the concave position, the position of the moving column 16 is lowered, which will also lower the positions of the rotating column 6 and the placement disk 7, and then the gear on the top surface of the placement disk 7 will enter the water for cooling. When the movable column 16 rotates to the protrusion, the rising position of the movable column 16 will drive the rotating column 6 and the placement plate 7 to rise, and then the gear can be moved out of the water. When the gear is directly placed in the water for rapid cooling, the low-temperature cooling speed of the water is very fast, which can easily cause the gear to shrink rapidly within the temperature range of the martensitic transformation temperature and below, thereby generating cracks. Then, the rotating column 6, the placement plate 7 and the movable column 16 are driven to rotate by the continuous rotation of the blade 10, so that the gear can intermittently enter the water to reduce the cooling speed, and prevent the gear temperature from being high and the cooling speed from being too high, resulting in rapid hardening of the gear surface while the internal cooling speed has not yet reached a sufficient cooling speed, thereby affecting the overall hardening depth and hardness uniformity. When it is necessary to stop the placement plate 7 from being lifted or lowered, the blocking column 14 is passed through the operating hole 13 and one end of the blocking column is extended under the placement plate 7 to prevent the placement plate 7 from descending.

[0041] Through the provided water outlet pipe 21, when the gear is cooled and quenched inside the quenching box 3, the water inside the quenching box 3 will enter the cooling chamber 23 through the water outlet pipe 21, so that the water inside the quenching box 3 flows, preventing the water inside the quenching box 3 from being stagnant, and the water temperature rises after cooling the gear.

[0042] By means of the cooling fan 28, when water enters the cooling chamber 23, the heat in the water will affect the heat conducting plate 26, and then the heat conducting plate 26 is kept at a low temperature by using the cooling fan 28, thereby facilitating cooling of the water heated after the gear quenching.

[0043] Through the provided flow pipe 32, after the water is cooled inside the cooling chamber 23, the water inside the cooling chamber 23 can be pumped out by using the circulating water pump 29, and at the same time, the solenoid valve 33 is opened to allow the water to enter the inside of the circulation pipe 34 through the flow pipe 32 and the solenoid valve 33, and then the water will be re-sprayed into the inside of the quenching box 3 through the water inlet pipe 36, and then the sprayed water will generate a water flow to impact the blades 10, so that the blades 10 drive the rotating block 9, the rotating column 6 and the placement plate 7 to rotate, so as to facilitate the circulation cooling of the water for gear quenching while allowing the gears to intermittently enter the water. At the same time, so that each time the gear enters the water, the quenching water can always remain in a cold water state, preventing the quenching water temperature from being affected by the heated gear and causing the temperature to rise, resulting in uneven cooling speed of the gear, and at the same time preventing the water temperature from being too high and the gear staying in the high temperature stage for too long, which may cause excessive tensile stress inside the gear, thereby inducing cracks and expanding the cracks that have already formed.

[0044] By setting up the spray box 42, when the gear is quenching, the water in the circulation pipe 34 will enter the interior of the spray box 42 through the hose 39, and flow out through the water hole 44 to spray the gear, preventing the heat inside the gear from continuing to transfer to the surface when the gear is intermittently discharging water, causing the surface temperature to rise again.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A uniform quenching device for a gear assembly, characterized in that: include: A base (1), a plurality of support columns (2) being fixedly mounted on the top surface of the base (1), and a quenching box (3) being fixedly mounted on the top surfaces of the plurality of support columns (2); A quenching assembly is arranged inside the quenching box (3) and is used for cooling and quenching the gear. The quenching assembly comprises: a fixed frame (4), the fixed frame (4) is fixedly installed inside the quenching box (3), a rotating hole (5) is provided on the top surface of the fixed frame (4), a rotating column (8) is fixedly sleeved on the inner circular wall surface of the rotating hole (5), a rotating hole (11) is provided on the top surface of the rotating column (8), a cam groove (12) is provided on the top surface of the rotating column (8), a rotating column (6) is movably sleeved on the inner circular wall surface of the rotating hole (11), a rotating block (9) is fixedly installed on the bottom surface of the rotating column (6), and the rotating block A plurality of blades (10) are fixedly mounted on the outer circular wall surface of the rotating column (9); a placing plate (7) is fixedly mounted on the top surface of the rotating column (6); a mounting ring (15) is fixedly sleeved on the outer circular wall surface of the rotating column (6); a moving column (16) is fixedly mounted on the bottom surface of the mounting ring (15); a movable groove (17) is provided on the bottom surface of the moving column (16); a positioning groove (18) is provided on the inner circular wall surface of the movable groove (17); a steel ball (19) is movably sleeved on the inner circular wall surface of the positioning groove (18); an operating hole (13) is provided on one side of the quenching box (3); a blocking column (14) is movably sleeved inside the operating hole (13); The bottom surface of the quenching box (3) is provided with a flow component for making water flow; The top surface of the base (1) is provided with a cooling component for cooling water; The top surface of the base (1) is provided with a power assembly for causing water to impact the blades (10); The top surface of the quenching box (3) is provided with a water spray assembly for synchronously cooling the surface of the gear.

2. A uniform quenching device for a gear assembly according to claim 1, characterized in that: The flow assembly comprises: A water outlet hole (20), the water outlet hole (20) is provided on the bottom surface of the quenching box (3), a water outlet pipe (21) is fixedly sleeved on the inner circular wall surface of the water outlet hole (20), a support frame (22) is fixedly installed on the top surface of the base (1), a cooling chamber (23) is fixedly installed inside the support frame (22), a mounting hole (24) is provided on one side of the cooling chamber (23), and the mounting hole (24) is fixedly sleeved with the water outlet pipe (21).

3. A uniform quenching device for a gear assembly according to claim 2, characterized in that: The cooling component comprises: A mounting frame (27), wherein the mounting frame (27) is arranged on the top surface of the base (1), and the mounting frame (27) is fixedly mounted on the bottom surface of the cooling chamber (23), and a heat conduction hole (25) is provided on the inner bottom surface of the cooling chamber (23), and a heat conduction plate (26) is fixedly sleeved inside the heat conduction hole (25), and a heat dissipation fan (28) is fixedly sleeved inside the mounting frame (27).

4. A uniform quenching device for a gear assembly according to claim 2, characterized in that: The power assembly comprises: A circulating water pump (29), the circulating water pump (29) is fixedly mounted on the top surface of the base (1), a drainage hole (30) is opened on one side of the cooling chamber (23), a drainage pipe (31) is fixedly sleeved on the inner circular wall surface of the drainage hole (30), the drainage pipe (31) is fixedly sleeved on the water inlet of the circulating water pump (29), and a flow pipe (32) is fixedly sleeved on the outer circular wall surface of the water outlet of the circulating water pump (29), and the flow pipe (32) is fixedly sleeved on the outer circular wall surface of the water outlet of the circulating water pump (29). A solenoid valve (33) is fixedly sleeved on the outer circular wall surface of the moving pipe (32), a circulation pipe (34) is fixedly sleeved on the inner circular wall surface of the solenoid valve (33), a fixing hole (35) is provided on the outer circular wall surface of the circulation pipe (34), a water inlet pipe (36) is fixedly sleeved on the inner circular wall surface of the fixing hole (35), a water inlet hole (37) is provided on one side of the quenching box (3), and the water inlet pipe (36) is fixedly sleeved on the water inlet hole (37).

5. A uniform quenching device for a gear assembly according to claim 4, characterized in that: The water spray assembly comprises: A spray box (42), wherein the spray box (42) is arranged on the top surface of the quenching box (3), a diversion hole (38) is opened on the outer circular wall surface of the circulation pipe (34), a hose (39) is fixedly sleeved on the inner circular wall surface of the diversion hole (38), a limiting frame (40) is arranged on the top surface of the quenching box (3), the bottom surface of the limiting frame (40) is fixedly installed with the top surface of the spray box (42), a stabilizing hole (41) is opened on the top surface of the limiting frame (40), a connecting hole (43) is opened on the top surface of the spray box (42), the hose (39) passes through the stabilizing hole (41) and is fixedly sleeved with the connecting hole (43), and a plurality of water flow holes (44) are opened on the bottom surface of the spray box (42).

6. A uniform quenching device for a gear assembly according to claim 5, characterized in that: A positioning frame (45) is fixedly mounted on the top surface of the quenching box (3), a lifting hole (46) is provided on one side of the positioning frame (45), a rotating groove (47) is provided on the inner bottom surface of the lifting hole (46), a circular through hole is provided on the top surface of the positioning frame (45), a screw rod (48) is movably sleeved on the inner circular wall surface of the circular through hole, the screw rod (48) is movably sleeved on the rotating groove (47), a stepping motor (49) is fixedly mounted on the top surface of the positioning frame (45), a driving shaft of the stepping motor (49) is fixedly mounted on the screw rod (48), and a threaded hole (50) is provided on the top surface of the limiting frame (40), and the threaded hole (50) is threadedly connected to the screw rod (48).

7. The uniform quenching device for a gear assembly according to claim 1, characterized in that: A filter plate (51) is fixedly installed inside the quenching box (3), and a plurality of filter holes (52) are opened on one side of the filter plate (51).

8. The uniform quenching device for a gear assembly according to claim 5, characterized in that: A support block (53) is fixedly mounted on the top surface of the limiting frame (40), and a movable hole (54) is opened on one side of the support block (53), and the movable hole (54) is movably sleeved with the hose (39).

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