A quenching device for forging wind power main shafts

Abstract

The present invention discloses a quenching device for forging a wind power spindle, which relates to the technical field of heat treatment equipment and includes a quenching pool and a mixer. A retaining ring is provided at the pool mouth of the quenching pool, a filter cylinder is provided inside the retaining ring, a tray is provided inside the filter cylinder, a winding and releasing mechanism for winding or releasing a traction rope is provided on the retaining ring, one end of the traction rope far from the winding and releasing mechanism is connected to the tray, and a mixer is provided between the outer wall of the filter cylinder and the inner wall of the quenching pool. The present invention can facilitate the cleaning of impurities in the quenching pool.

Description

Technical Field

[0001] The present invention relates to the technical field of heat treatment equipment, and particularly to a quenching device for forging wind power spindle. Background Art

[0002] The wind power spindle is a large shaft forging. During the processing of the wind power spindle, in order to eliminate forging stress and improve machining performance, the wind power spindle needs to be quenched.

[0003] Existing wind power spindle quenching devices include vertical quenching devices, horizontal quenching devices, etc. For example, in the Chinese patent with the application number CN201110105502.7, "Vertical Rotary Quenching Device for Wind Turbine Spindle" is disclosed. When using this quenching device, the wind power spindle is vertically hoisted into the quenching oil tank for quenching. Another example is the Chinese patent with the application number CN202122408693.6, "A Telescopic Intelligent Control Quenching Device for Wind Turbine Spindle". When using this quenching device, the wind power spindle is horizontally placed on the support platform in the quenching pool for quenching, and in this quenching device, a stirrer for balancing temperature is also provided.

[0004] After the quenching pool is used for a period of time, impurities such as iron filings and scale will accumulate in the quenching liquid in the quenching pool. The accumulated impurities can easily cause the quenching liquid to deteriorate and become ineffective, affecting the quenching quality of the wind power spindle. Therefore, it is necessary to regularly clean the impurities in the quenching pool.

[0005] However, in the above-mentioned quenching devices, there is no cleaning structure capable of cleaning the impurities in the quenching pool. Therefore, how to conveniently clean the impurities in the quenching pool is a technical problem that needs to be urgently solved by those skilled in the art. Summary of the Invention

[0006] The present invention aims at the above-mentioned deficiencies existing in the prior art, and provides a quenching device for forging wind power spindle, which can conveniently clean the impurities in the quenching pool.

[0007] To achieve the above object, the invention provides the following technical solutions:

[0008] A quenching device for forging wind power spindle includes a quenching pool and a stirrer. A retaining ring is provided at the pool opening of the quenching pool. A filter cylinder is provided inside the retaining ring. A tray is provided inside the filter cylinder. A winding and unwinding mechanism for winding or releasing a traction rope is provided on the retaining ring. One end of the traction rope away from the winding and unwinding mechanism is connected to the tray. A stirrer is provided between the outer wall of the filter cylinder and the inner wall of the quenching pool.

[0009] Furthermore, a guide rail is provided on the inner wall of the filter cylinder, and a guide groove for vertical sliding cooperation with the guide rail is provided on the tray.

[0010] Further, the retracting and extending mechanism includes a motor base and a retracting and extending motor. The motor base is disposed on the upper end surface of the retaining ring. A retracting and extending motor is provided on the motor base, and the traction rope is wound around the output shaft of the retracting and extending motor.

[0011] Further, the mixer includes a stirring shaft, a stirring base, stirring blades, and a driving mechanism. There are multiple stirring shafts, and all the stirring shafts are arranged around the filter cylinder. The upper end of the stirring shaft is rotatably connected to the retaining ring, and the lower end of the stirring shaft is rotatably connected to the stirring base. The stirring base is connected to the bottom of the quenching pool. Stirring blades are provided on the stirring shaft, and a driving mechanism for driving the rotation of the stirring shaft is provided on the retaining ring.

[0012] Further, the driving mechanism includes a stirring motor, a main gear, an internal gear ring, and a sub-gear. The stirring motor is disposed on the upper end surface of the retaining ring. The output shaft of the stirring motor penetrates the retaining ring. A main gear is provided at one end of the output shaft of the stirring motor extending into the quenching pool. The main gear meshes with the internal gear ring. The internal gear ring is rotatably connected to the retaining ring. A sub-gear is provided at the upper end of the stirring shaft, and the sub-gears on all the stirring shafts mesh with the internal gear ring.

[0013] Further, brushes are provided on the stirring blades.

[0014] Further, a circulation outlet and a circulation inlet are provided on the pool wall of the quenching pool. The circulation outlet is connected to the inlet of the cooling device through a first circulation pipe. The outlet of the cooling device is connected to the circulation inlet through a second circulation pipe. A circulation pump is provided on the first circulation pipe.

[0015] Further, a liquid outlet is provided at the bottom of the quenching pool, and a liquid inlet is provided at the upper end of the pool wall of the quenching pool. A liquid outlet valve is provided in the liquid outlet. The liquid outlet is communicated with a storage pool located below the quenching pool. The storage pool is connected to the liquid inlet through a liquid inlet pipe. A liquid inlet pump is provided on the liquid inlet pipe.

[0016] Further, filter holes are provided on the tray.

[0017] Further, a plurality of brush rollers arranged side by side are rotatably connected to the lower end surface of the tray. Cleaning gears are provided on the brush rollers. The cleaning gears on two adjacent brush rollers mesh with each other. A rack is provided on the inner wall of the filter cylinder. The tray is provided with an avoidance hole for avoiding the rack. The rack meshes with the cleaning gears on the brush rollers.

[0018] Compared with the prior art, the beneficial effects of the invention are:

[0019] 1. In the quenching equipment of the present invention, since the wind power main shaft is located inside the filter cartridge during quenching, impurities such as iron filings and scale are isolated inside the filter cartridge by the filter cartridge, preventing the loss of impurities. When cleaning the impurities in the quenching pool of the present invention, a winding and unwinding mechanism is required to wind and unwind the towing rope, and the towing rope pulls the tray to gradually move upward. The quenching liquid above the tray flows out from the holes of the filter cartridge, and the impurities in the quenching liquid are intercepted and picked up on the tray. When the tray rises to the height where the retaining ring is located, the staff can sweep the impurities on the tray, thus facilitating the cleaning of the impurities in the quenching pool, avoiding the deterioration and invalidation of the quenching liquid caused by impurities, extending the service life of the quenching liquid, being beneficial to saving the consumption cost of the quenching liquid, and being beneficial to ensuring the quenching quality of the wind power main shaft.

[0020] 2. Unexpectedly, when the tray rises to the inner ring of the retaining ring, the tray and the retaining ring can together block the pool opening of the quenching pool, which is beneficial to reducing the risk of the staff accidentally falling into the quenching pool.

[0021] 3. In the quenching equipment of the present invention, since both the winding and unwinding motor and the stirring motor are arranged on the upper end surface of the retaining ring, rather than inside the quenching pool, it is convenient for the staff to repair and maintain the winding and unwinding motor and the stirring motor.

[0022] 4. Unexpectedly, when the stirrer agitates the quenching liquid in the quenching pool, in addition to achieving the effect of balancing the temperature of the quenching liquid, unexpectedly, it can also stir the flow of the quenching liquid, allowing the quenching liquid to continuously wash the filter cartridge, washing down the impurities blocked and embedded on the holes of the filter cartridge. The washed-down impurities return to the inside of the filter cartridge, preventing the holes on the filter cartridge from being blocked, ensuring the fluidity of the quenching liquid inside and outside the filter cartridge, being more thorough when the tray salvages the impurities inside the filter cartridge, and being beneficial to improving the effect of cleaning impurities.

[0023] 5. By setting brushes on the stirring blades, when the stirring blades rotate with the stirring shaft, the brushes on the stirring blades can continuously brush the outer wall of the filter cartridge, pushing the sundries blocked and embedded on the holes of the filter cartridge back into the inside of the filter cartridge to keep the holes on the filter cartridge unblocked, further reducing the probability of the holes on the filter cartridge being blocked, further ensuring the fluidity of the quenching liquid inside and outside the filter cartridge, and being beneficial to ensuring the effect of cleaning impurities.

[0024] 6. By setting a circulation outlet and a circulation inlet on the quenching pool, and arranging a first circulation pipe, a second circulation pipe, a cooling device, and a circulation pump, under the pumping of the circulation pump, the quenching liquid in the quenching pool can circulate between the quenching pool and the cooling device. The quenching liquid with a higher temperature in the quenching pool returns to the quenching pool after being cooled by the cooling device, reducing the temperature of the quenching liquid in the quenching pool, which is beneficial to improving the quenching effect on the wind power main shaft.

[0025] 7. Unexpectedly, because a filter cartridge is provided in the quenching pool, impurities such as iron filings and scale that fall during the quenching of the wind power spindle are blocked inside the filter cartridge, reducing the impurities in the quenching liquid between the filter cartridge and the quenching pool. As a result, the quenching liquid circulating between the quenching pool and the cooling device does not require additional filtration, which helps to avoid clogging the cooling device, ensures the stability of the cooling cycle process, and saves maintenance costs.

[0026] 8. By providing a liquid outlet at the bottom of the quenching pool, a liquid inlet at the upper end of the pool wall of the quenching pool, a liquid outlet valve in the liquid outlet, connecting the liquid outlet to a storage pool located below the quenching pool, connecting the storage pool to the liquid inlet through a liquid inlet pipe, and installing a liquid inlet pump on the liquid inlet pipe, when it is necessary to repair and maintain the quenching pool, the liquid outlet valve can be opened to flow the quenching liquid in the quenching pool into the storage pool for temporary storage, emptying the quenching liquid in the quenching pool, which facilitates the staff to enter the quenching pool for maintenance.

[0027] 9. By providing filter holes on the tray, when the tray is moved up, the quenching liquid above the tray can flow out from the filter holes on the tray, reducing the contact area between the tray and the quenching liquid, which helps to reduce the resistance when the winding and unwinding motor winds and unwinds the traction rope, helps to extend the service life of the winding and unwinding motor, and saves maintenance costs.

[0028] 10. By providing brush rollers, cleaning gears, and racks, when the winding and unwinding motor winds the traction rope to move the tray up, the tray carries the brush rollers and cleaning gears up together. The cleaning gears meshing with the rack rotate during the upward movement. Because the cleaning gears on adjacent two brush rollers mesh with each other, all the cleaning gears can drive the brush rollers to rotate. The rotating brush rollers can brush the tray from below, and the bristles on the brush rollers can push out the sundries stuck in the filter holes of the tray to prevent impurities from being embedded in the filter holes of the tray, and can maintain the effect of reducing the upward resistance of the tray.

[0029] 11. Because when the tray rises, the cleaning gears meshing with the rack can drive the brush rollers to rotate, so when the tray rises, the brush rollers on the lower end face of the tray can rotate automatically without the need to additionally set up electric equipment to drive the brush rollers to rotate, which is convenient for repair and maintenance.

[0030] 12. Unexpectedly, when the brush rollers brush the tray to prevent impurities from being embedded in the filter holes of the tray, it can make the impurities on the tray in a loose state and fall on the tray, which is convenient for cleaning the impurities on the tray and helps to improve the efficiency of cleaning impurities. Description of the Drawings

[0031] Figure 1 is a perspective view of the quenching pool;

[0032] Figure 2 is the front view of the quenching pool;

[0033] Figure 3 Top view of the quenching pool;

[0034] Figure 4 is Figure 3 Cross-sectional view taken along line A-A in

[0035] Figure 5 is Figure 4 Partial enlarged view at position B in

[0036] Figure 6 Stereogram of the internal structure of the quenching pool;

[0037] Figure 7 Assembly schematic diagram of the stirring shaft, stirring blades and brush;

[0038] Figure 8 Assembly schematic diagram of the quenching pool, cooling device and storage pool;

[0039] Figure 9 Top view of the assembly of the filter cartridge and the tray in Example 5;

[0040] Figure 10 is Figure 9 Cross-sectional view taken along line C-C in

[0041] Figure 11 Stereogram of the assembly of the filter cartridge and the tray without the brush roller and cleaning gear installed in Example 5;

[0042] Figure 12 Assembly schematic diagram of the brush roller and cleaning gear in Example 5.

[0043] In the figure:

[0044] 1 - Quenching pool, 101 - Circulation outlet, 102 - Circulation inlet, 103 - Liquid outlet, 104 - Liquid inlet,

[0045] 2 - Retaining ring, 201 - Through hole,

[0046] 3 - Filter cartridge,

[0047] 4 - Tray, 401 - Guide groove, 402 - Filter hole, 403 - Avoidance hole,

[0048] 5 - Guide rail,

[0049] 6 - Traction rope, 7 - Motor base, 8 - Take-up and pay-out motor,

[0050] 9 - Stirring shaft, 10 - Stirring seat, 11 - Stirring blade, 12 - Stirring motor, 13 - Main gear, 14 - Internal gear ring, 15 - Sub-gear, 16 - Annular slide rail, 17 - Brush,

[0051] 18 - First circulation pipe, 19 - Cooling device, 20 - Second circulation pipe, 21 - Circulation pump, 22 - Liquid outlet valve, 23 - Storage pool, 24 - Liquid inlet pipe, 25 - Liquid inlet pump,

[0052] 26 - Brush roller, 27 - Cleaning gear, 28 - Rack. Detailed implementation manners

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0054] Embodiment 1:

[0055] As Figure 1 , Figure 3 , Figure 4 shown, a quenching device for forging a wind power spindle includes a quenching pool 1. A retaining ring 2 is fixedly installed at the pool opening of the quenching pool 1, a filter cartridge 3 is fixedly installed inside the retaining ring 2, and the lower end of the filter cartridge 3 is suspended. A tray 4 is arranged inside the filter cartridge 3, a guiding groove 401 is arranged on the tray 4, and the guiding groove 401 is vertically slidably matched with a guide rail 5 fixedly installed on the inner wall of the filter cartridge 3.

[0056] As Figure 1 , Figure 3 , Figure 4 shown, a winding and unwinding mechanism is installed on the retaining ring 2, and the winding and unwinding mechanism is used to wind or release a towing rope 6, and one end of the towing rope 6 far from the winding and unwinding mechanism is connected to the tray 4. The towing rope 6 can be made of steel wire rope or chain. When the winding and unwinding mechanism winds the towing rope 6, the towing rope 6 drags the tray 4 to move upward; when the winding and unwinding mechanism releases the towing rope 6, the tray 4 moves downward under the action of its own gravity.

[0057] As Figure 1 , Figure 3 , Figure 4 shown, in this embodiment, a structural form of the winding and unwinding mechanism is given: the winding and unwinding mechanism includes a motor base 7 and a winding and unwinding motor 8. The motor base 7 is fixedly installed on the upper end face of the retaining ring 2, a winding and unwinding motor 8 is fixedly installed on the motor base 7, the winding and unwinding motor 8 can be a servo motor, and a towing rope 6 is wound on the output shaft of the winding and unwinding motor 8. When the output shaft of the winding and unwinding motor 8 rotates forward, the towing rope 6 can be gradually released, so that the tray 4 moves downward under the action of its own gravity; when the output shaft of the winding and unwinding motor 8 rotates reversely, the towing rope 6 can be gradually wound, and the towing rope 6 drags the tray 4 to move upward.

[0058] When quenching a wind power main shaft using the quenching equipment of this embodiment, a hoisting device (such as a crane) is required to lift the wind power main shaft to be quenched above the quenching pool 1, and then gradually lower the wind power main shaft into the filter cylinder 3 in the quenching pool 1 until the wind power main shaft is completely immersed in the quenching liquid in the quenching pool 1. When quenching is completed, use the hoisting device to lift the wind power main shaft out of the quenching pool 1 and transfer it.

[0059] After the quenching pool 1 has been used for a period of time, impurities such as iron filings and scale will accumulate in the quenching liquid in the quenching pool 1. Since the wind power main shaft is located inside the filter cylinder 3 during quenching, the iron filings, scale and other impurities are isolated inside the filter cylinder 3 by the filter cylinder 3 to prevent the loss of impurities. When cleaning the impurities in the quenching pool 1, it is necessary to use the retracting and releasing mechanism to wind up the towing rope 6, and the towing rope 6 pulls the tray 4 to gradually move upward. The quenching liquid above the tray 4 flows out from the holes of the filter cylinder 3, and the impurities in the quenching liquid are intercepted and lifted on the tray 4. When the tray 4 rises to the height of the retaining ring 2, the staff can sweep the impurities on the tray 4. Thus, it is convenient to clean the impurities in the quenching pool 1, avoid the deterioration and invalidation of the quenching liquid caused by impurities, extend the service life of the quenching liquid, is beneficial to saving the consumption cost of the quenching liquid, and is beneficial to ensuring the quenching quality of the wind power main shaft.

[0060] Unexpectedly, when the tray 4 rises to the inner ring of the retaining ring 2, the tray 4 and the retaining ring 2 can together block the mouth of the quenching pool 1, which is beneficial to reducing the risk of the staff accidentally falling into the quenching pool 1.

[0061] As Figure 4 shown, the quenching equipment of this embodiment further includes a stirrer. The stirrer is arranged between the outer wall of the filter cylinder 3 and the inner wall of the quenching pool 1, and the stirrer is used to balance the temperature in the quenching pool 1 during the quenching operation to ensure the quenching effect.

[0062] As Figure 4-6 shown, in this embodiment, a structural form of the stirrer is given: the stirrer includes a stirring shaft 9, a stirring seat 10, stirring blades 11, and a driving mechanism. There are multiple stirring shafts 9. In this embodiment, taking six stirring shafts 9 as an example, the six stirring shafts 9 are arranged around the filter cylinder 3. The upper end of the stirring shaft 9 is rotatably connected to the retaining ring 2, and the lower end of the stirring shaft 9 is rotatably connected to the stirring seat 10. The stirring seat 10 is fixedly installed at the bottom of the quenching pool 1. Stirring blades 11 are fixedly installed on the stirring shaft 9, and a driving mechanism for driving the stirring shaft 9 to rotate is installed on the retaining ring 2. When the driving mechanism drives the stirring shaft 9 to rotate, the stirring shaft 9 drives the stirring blades 11 to rotate.

[0063] As Figure 4-6As shown, in this embodiment, a structural form of the driving mechanism is given: The driving mechanism includes a stirring motor 12, a main gear 13, an internal gear ring 14, and a secondary gear 15. The stirring motor 12 is fixedly installed on the upper end surface of the retaining ring 2. The output shaft of the stirring motor 12 passes downward through the through hole 201 provided on the retaining ring 2, so that the output shaft of the stirring motor 12 extends into the quenching bath 1 from the through hole 201. A main gear 13 is fixedly installed at one end of the output shaft of the stirring motor 12 in the quenching bath 1. The main gear 13 meshes with the internal gear ring 14. The internal gear ring 14 is slidably engaged with an annular slide rail 16 fixedly installed on the lower end surface of the retaining ring 2. The upper ends of all the stirring shafts 9 are fixedly installed with secondary gears 15, and all the secondary gears 15 mesh with the internal gear ring 14. When the output shaft of the stirring motor 12 drives the main gear 13 to rotate, the internal gear ring 14 meshing with the main gear 13 rotates, and all the secondary gears 15 meshing with the internal gear ring 14 rotate. The secondary gears 15 drive the stirring shafts 9 and the stirring blades 11 to rotate, and the rotating stirring blades 11 agitate the quenching liquid in the quenching bath 1.

[0064] In the quenching equipment of this embodiment, since both the retracting and releasing motor 8 and the stirring motor 12 are arranged on the upper end surface of the retaining ring 2 instead of inside the quenching bath 1, it is convenient for the staff to repair and maintain the retracting and releasing motor 8 and the stirring motor 12.

[0065] Unexpectedly, when the stirrer agitates the quenching liquid in the quenching bath 1, in addition to achieving the above-mentioned effect of reducing and equalizing the temperature of the quenching liquid, it can also stir the flow of the quenching liquid, continuously flush the filter cylinder 3 with the quenching liquid, wash off the impurities blocked and embedded in the holes of the filter cylinder 3, and the washed-off impurities return to the inside of the filter cylinder 3 again, preventing the holes on the filter cylinder 3 from being blocked, ensuring the fluidity of the quenching liquid inside and outside the filter cylinder 3, being more thorough when the tray 4 salvages the impurities in the filter cylinder 3, and being beneficial to improving the effect of cleaning impurities.

[0066] Embodiment 2:

[0067] As Figure 7 shown, in order to further reduce the probability of the holes on the filter cylinder 3 being blocked, further ensure the fluidity of the quenching liquid inside and outside the filter cylinder 3, and ensure the effect of cleaning impurities. A brush 17 is fixedly installed on the stirring blade 11. When the stirring blade 11 rotates with the stirring shaft 9, the brush 17 on the stirring blade 11 can continuously brush the outer wall of the filter cylinder 3, push the sundries stuck in the holes of the filter cylinder 3 back into the inside of the filter cylinder 3, keep the holes on the filter cylinder 3 unblocked, further reduce the probability of the holes on the filter cylinder 3 being blocked, further ensure the fluidity of the quenching liquid inside and outside the filter cylinder 3, and be beneficial to ensuring the effect of cleaning impurities.

[0068] Embodiment 3:

[0069] As Figure 8As shown in the figure, in order to reduce the temperature of the quenching liquid in the quenching pool 1 and improve the quenching effect on the wind power spindle, a circulation outlet 101 and a circulation inlet 102 are provided on the pool wall of the quenching pool 1. The circulation outlet 101 is connected to the inlet of the cooling device 19 through the first circulation pipe 18, and the outlet of the cooling device 19 is connected to the circulation inlet 102 through the second circulation pipe 20. A circulation pump 21 is installed on the first circulation pipe 18. Among them, the cooling device 19 can adopt heat exchange equipment such as a plate heat exchanger or a shell-and-tube heat exchanger.

[0070] Under the pumping of the circulation pump 21, the quenching liquid in the quenching pool 1 can be circulated between the quenching pool 1 and the cooling device 19. The quenching liquid with a higher temperature in the quenching pool 1 returns to the quenching pool 1 after being cooled by the cooling device 19, reducing the temperature of the quenching liquid in the quenching pool 1, which is beneficial to improving the quenching effect on the wind power spindle.

[0071] Unexpectedly, because a filter cartridge 3 is provided in the quenching pool 1, impurities such as iron filings and scale dropped during the quenching of the wind power spindle are blocked inside the filter cartridge 3, reducing the impurities in the quenching liquid between the filter cartridge 3 and the quenching pool 1. Therefore, the quenching liquid circulated between the quenching pool 1 and the cooling device 19 does not need to be filtered additionally, which is beneficial to avoiding clogging of the cooling device 19, ensuring the stability of the cooling circulation process, and saving maintenance costs.

[0072] Example 4:

[0073] As Figure 8 shown in the figure, in order to facilitate the staff to enter the quenching pool 1 for maintenance. An outlet 103 is provided at the bottom of the pool wall of the quenching pool 1, and an inlet 104 is provided at the upper end of the pool wall of the quenching pool 1. An outlet valve 22 is provided in the outlet 103. The outlet 103 is communicated with a storage pool 23 located below the quenching pool 1. The storage pool 23 is connected to the inlet 104 through a liquid inlet pipe 24. A liquid inlet pump 25 is installed on the liquid inlet pipe 24.

[0074] When maintenance of the quenching pool 1 is required, the outlet valve 22 needs to be opened to flow the quenching liquid in the quenching pool 1 into the storage pool 23 for temporary storage, emptying the quenching liquid in the quenching pool 1 to facilitate the staff to enter the quenching pool 1 for maintenance. After the maintenance is completed, the outlet valve 22 needs to be closed, and the liquid inlet pump 25 needs to be started so that the quenching liquid in the storage pool 23 enters the quenching pool 1 through the liquid inlet pipe 24 and the inlet 104.

[0075] Example 5:

[0076] When the winding and unwinding motor 8 in Example 1 winds up the towing rope 6 to move the tray 4 upward, the tray 4 will be subject to the resistance of the quenching liquid above the tray 4, increasing the resistance when the winding and unwinding motor 8 winds up the towing rope 6 and increasing the load on the winding and unwinding motor 8, which will shorten the service life of the winding and unwinding motor 8.

[0077] In this regard, as Figure 9 and Figure 11 shown, in this embodiment, filter holes 402 are provided on the tray 4 so that when the tray 4 moves upward, the quenching liquid located above the tray 4 can flow out from the filter holes 402 on the tray 4, reducing the contact area between the tray 4 and the quenching liquid, which is beneficial to reducing the resistance when the winding and unwinding motor 8 winds the traction rope 6, beneficial to extending the service life of the winding and unwinding motor 8, and saving maintenance costs.

[0078] After the filter holes 402 are provided on the tray 4, when the tray 4 moves upward, the impurities in the quenching liquid in the filter cylinder 3 are likely to block the filter holes 402 on the tray 4, which is not conducive to maintaining the effect of reducing the upward resistance of the tray 4.

[0079] In this regard, as Figure 10-11 shown, a plurality of brush rollers 26 arranged side by side are rotatably connected to the lower end surface of the tray 4. As Figure 12 shown, the brush roller 26 is a cylinder provided with bristles. A cleaning gear 27 is fixedly installed on the brush roller 26. The cleaning gears 27 on two adjacent brush rollers 26 are meshed with each other. A rack 28 is fixedly installed on the inner wall of the filter cylinder 3. The tray 4 is provided with an avoidance hole 403 for avoiding the rack 28. The rack 28 is meshed with the cleaning gear 27 on one brush roller 26 closest to the rack 28. In order to reduce the weight of the tray 4, the brush roller 26 and the cleaning gear 27 can both be made of lightweight materials such as plastic.

[0080] When the winding and unwinding motor 8 winds the traction rope 6 to move the tray 4 upward, the tray 4 carries the brush roller 26 and the cleaning gear 27 to move upward together. The cleaning gear 27 meshed with the rack 28 rotates during the upward movement. Because the cleaning gears 27 on two adjacent brush rollers 26 are meshed with each other, all the cleaning gears 27 can drive the brush roller 26 to rotate. The rotating brush roller 26 can brush the tray 4 from below, and the bristles on the brush roller 26 can push out the sundries embedded in the filter holes 402 of the tray 4 to prevent impurities from being embedded in the filter holes 402 of the tray 4 and maintain the effect of reducing the upward resistance of the tray 4.

[0081] Moreover, because when the tray 4 rises, the cleaning gear 27 meshed with the rack 28 can drive the brush roller 26 to rotate, when the tray 4 rises, the brush roller 26 on the lower end surface of the tray 4 can rotate automatically without additionally arranging an electric device to drive the brush roller 26 to rotate, which is convenient for overhaul and maintenance.

[0082] Unexpectedly, when the brush roller 26 brushes the tray 4 to prevent impurities from being embedded in the filter holes 402 of the tray 4, the impurities on the tray 4 can be in a loose state and fall on the tray 4, which is convenient for cleaning the impurities on the tray 4 and beneficial to improving the efficiency of cleaning impurities.

[0083] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A quenching device for forging a wind power spindle, comprising a quenching pool and a mixer, characterized in that, A retaining ring is provided at the mouth of the quenching pool. A filter cartridge is provided inside the retaining ring. A tray is provided inside the filter cartridge. A winding and unwinding mechanism for winding or unwinding a towing rope is provided on the retaining ring. One end of the towing rope away from the winding and unwinding mechanism is connected to the tray. The stirrer is provided between the outer wall of the filter cartridge and the inner wall of the quenching pool. Filter holes are provided on the tray. A plurality of brush rollers arranged side by side are rotatably connected to the lower end surface of the tray. Cleaning gears are provided on the brush rollers. The cleaning gears on adjacent two brush rollers are meshed with each other. A rack is provided on the inner wall of the filter cartridge. The tray is provided with an avoidance hole for avoiding the rack. The rack is meshed with the cleaning gears on the brush rollers.

2. The quenching equipment for forging a wind power spindle according to claim 1, characterized in that, Guide rails are provided on the inner wall of the filter cartridge. The tray is provided with guide grooves for vertically sliding and cooperating with the guide rails.

3. The quenching equipment for forging a wind power spindle according to claim 1, characterized in that, The winding and unwinding mechanism includes a motor base and a winding and unwinding motor. The motor base is provided on the upper end surface of the retaining ring. A winding and unwinding motor is provided on the motor base. The towing rope is wound around the output shaft of the winding and unwinding motor.

4. A quenching device for forging a wind power spindle according to claim 1, characterized in that, The stirrer includes a stirring shaft, a stirring seat, stirring blades, and a driving mechanism. A plurality of stirring shafts are provided. All the stirring shafts are arranged around the filter cartridge. The upper end of the stirring shaft is rotatably connected to the retaining ring. The lower end of the stirring shaft is rotatably connected to the stirring seat. The stirring seat is connected to the bottom of the quenching pool. Stirring blades are provided on the stirring shaft. A driving mechanism for driving the stirring shaft to rotate is provided on the retaining ring.

5. The quenching equipment for forging a wind power main shaft according to claim 4, characterized in that, The driving mechanism includes a stirring motor, a main gear, an internal gear ring, and a secondary gear. The stirring motor is provided on the upper end surface of the retaining ring. The output shaft of the stirring motor penetrates through the retaining ring. A main gear is provided at one end of the output shaft of the stirring motor extending into the quenching pool. The main gear is meshed with the internal gear ring. The internal gear ring is rotatably connected to the retaining ring. A secondary gear is provided at the upper end of the stirring shaft. The secondary gears on all the stirring shafts are meshed with the internal gear ring.

6. The quenching device for forging a wind power spindle according to claim 4, characterized in that, Brushes are provided on the stirring blades.

7. The quenching equipment for forging a wind power spindle according to claim 1, characterized in that, A circulation outlet and a circulation inlet are provided on the pool wall of the quenching pool. The circulation outlet is connected to the inlet of the cooling device through a first circulation pipe. The outlet of the cooling device is connected to the circulation inlet through a second circulation pipe. A circulation pump is provided on the first circulation pipe.

8. A quenching device for forging a wind power spindle as described in claim 1, characterized in that, A liquid outlet is provided at the bottom of the quenching pool. An inlet is provided at the upper end of the pool wall of the quenching pool. A liquid outlet valve is provided in the liquid outlet. The liquid outlet is communicated with a storage pool located below the quenching pool. The storage pool is connected to the inlet through a liquid inlet pipe. A liquid inlet pump is provided on the liquid inlet pipe.

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