A method and equipment for preparing gears by powder metallurgy

Abstract

The present application provides a method for preparing gears by powder metallurgy and its application, including a processing tank. A stirring assembly is fixedly connected inside the processing tank, drying assemblies are provided on both sides of the processing tank, and a filtering assembly is provided below the processing tank. The stirring assembly includes two side circular plates symmetrically and uniformly distributed and fixedly installed on both sides of the inner wall of the processing tank. A shaft tube is movably connected to the middle of the opposite surfaces of the two side circular plates. A number of arc-shaped grooves are spirally and uniformly distributed on the outer wall of the shaft tube. A sliding rod is movably connected to the inner wall of the arc-shaped groove. One end of the sliding rod penetrates through the shaft tube and is fixedly connected with a semi-circular buckle. A spherical shell is movably connected between the two shaft tubes, and a support tube is movably connected below the spherical shell. Through the provided fan blades, heating tubes, curved tubes and shaft tubes, the present application realizes the drying treatment of the metallurgical powder during the stirring and mixing process, reduces the humidity of the metallurgical powder, and improves the quality of the metallurgical powder.

Description

Technical Field

[0001] The present invention relates to the field of new energy, and more particularly, to a method and equipment for preparing gears by powder metallurgy method. Background Art

[0002] Powder metallurgy is a process technology for producing metal powders or using metal powders (or mixtures of metal powders and non-metal powders) as raw materials, and manufacturing metal materials, composite materials and various types of products through forming and sintering. It is a method commonly used in the current powder metallurgy industry.

[0003] In the process of manufacturing gears by powder metallurgy, it is necessary to mix and stir the powders to evenly mix different metal powders and possible additives to obtain the required alloy composition. However, in the mixing process, the presence of moisture in the metal powders or additives will affect the humidity of the metallurgical powders after mixing and the quality of the final workpiece.

[0004] For example: Chinese Patent Application No.: CN201610732035.3, the disclosed "Powder Metallurgy Drying Device", its specification discloses that this technology mixes fine metal powders with a binder, transports them into a plasticizing component, heats them in the plasticizing component and converts them into a molten state, and uses the thrust of a screw to push the molten metal liquid to the front end of the barrel, and sprays it from the nozzle at the front end of the barrel into the mold cavity of the mold, and obtains a formed product after curing and shaping. Its working principle is similar to that of a syringe for injection. However, it is inevitable that moisture and humidity will adhere to the surface of the metal powders when they are placed in the air. If no corresponding treatment is done for the moisture and humidity, it will surely affect the performance of the formed product; the above patent can prove the defects existing in the prior art.

[0005] Therefore, we make improvements on this and propose a method and equipment for preparing gears by powder metallurgy method. Summary of the Invention

[0006] The purpose of the present invention is to address the problem that in the current background art, the presence of moisture in metal powders or additives during the mixing process will affect the humidity of the metallurgical powders after mixing and the quality of the final workpiece.

[0007] In order to achieve the above-mentioned invention purpose, the present invention provides a method and equipment for preparing gears by powder metallurgy method to improve the above problems.

[0008] Specifically, this application is as follows:

[0009] A method for preparing gears by powder metallurgy method includes the following steps:

[0010] S1. Raw material selection: Select alloy powder materials according to the application and requirements of the gears;

[0011] S2. Raw material mixing: Mix the selected powders to ensure that the components in the mixture are evenly distributed, and perform a drying process during the stirring and mixing process to reduce the humidity and moisture in the powder materials;

[0012] S3. Compression molding: Put the evenly mixed powder into a mold and use high-pressure equipment for pressing, and perform oscillation during the pressing process to make it fully fill the mold;

[0013] S4. Sintering: The preform undergoes a sintering process to bond the powder particles together at high temperature;

[0014] S5. Shaping and finishing: The sintered parts need to be further shaped and finished, including turning and grinding processes;

[0015] S6. Heat treatment: Adopt quenching and tempering treatment methods to change the hardness and toughness of the gears;

[0016] S7. Surface treatment: According to the requirements of the tooth surface parameters of the gears, surface treatment can be carried out, including plating and carburizing;

[0017] S8. Quality control: During the entire preparation process, quality monitoring is carried out on the gears in each step.

[0018] As a preferred technical solution of the present application, the selection of the alloy material needs to be based on the characteristics of mechanical properties, wear resistance and corrosion resistance.

[0019] As a preferred technical solution of the present application, additives are introduced during the mixing process to promote the mixing process.

[0020] As a preferred technical solution of the present application, the oscillation parameters are optimized during the oscillation process to ensure that the powder fully fills the mold and reduce the porosity.

[0021] As a preferred technical solution of the present application, ultrasonic testing and magnetic particle testing are introduced during the quality control process to detect hidden defects.

[0022] A preparation device for gears by powder metallurgy method, including a processing tank, a stirring component is fixedly connected inside the processing tank, drying components are arranged on both sides of the processing tank, and a filtering component is arranged below the processing tank;

[0023] The stirring assembly includes two side circular plates symmetrically and evenly distributed and fixedly installed on both sides of the inner wall of the processing tank. In the middle of the opposite surfaces of the two side circular plates, a shaft tube is movably connected. A number of arc-shaped grooves are spirally and evenly distributed on the outer wall of the shaft tube. A sliding rod is movably connected to the inner wall of the arc-shaped groove. One end of the sliding rod penetrates the shaft tube and is fixedly connected with a semi-circular buckle. A spherical shell is movably connected between the two shaft tubes. A support tube is movably connected below the spherical shell. An auxiliary assembly is provided on the outer wall of the support tube. The auxiliary assembly includes an external thread provided on the lower part of the outer wall of the support tube. A positioning ring plate is movably connected above the support tube.

[0024] The drying assembly includes a positioning cylinder movably connected through the processing tank at the end of the shaft tube away from the spherical shell. The other end of the positioning cylinder is fixedly connected with a curved tube. A protective shell is fixedly connected in the middle of the other ends of the two curved tubes. A number of heating tubes are fixedly connected evenly in a circle on the upper part of the inner wall of the protective shell.

[0025] The filtering assembly includes a number of arc-shaped discharge grooves evenly distributed in a circle on the lower surface of the processing tank. An arc-shaped plate is movably connected to the inner wall of the arc-shaped groove. A rubber arc plate is fixedly connected to the upper surface of the arc-shaped plate.

[0026] As a preferred technical solution of the present application, two first bevel gears are movably connected symmetrically and evenly distributed on both sides of the inner wall of the spherical shell. One end of the shaft tube penetrates the spherical shell and is fixedly connected with the first bevel gear. A second bevel gear is movably connected between the upper and lower parts of the two first bevel gears.

[0027] As a preferred technical solution of the present application, a positioning groove frame is movably connected below the support tube. A ring-shaped clamping frame is movably connected below the positioning groove frame. An auxiliary shaft is movably connected in the middle of the ring-shaped clamping frame.

[0028] As a preferred technical solution of the present application, a number of electric telescopic rods are fixedly connected evenly in a circle below the ring-shaped clamping frame. The lower part of the electric telescopic rod is fixedly installed above the protective shell.

[0029] As a preferred technical solution of the present application, a number of positioning rods are fixedly connected evenly in a circle below the outer wall of the protective shell. A funnel is fixedly connected below the number of positioning rods.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] In the solution of the present application:

[0032] 1. To solve the problem that in the prior art, the presence of moisture in metal powders or additives during the mixing process can affect the humidity of the metallurgical powder after mixing and the quality of the final workpiece, the present application realizes the drying treatment of the metallurgical powder during the stirring and mixing process by setting a fan blade, a heating pipe, a curved pipe and a shaft pipe, reduces the humidity of the metallurgical powder, and improves the quality of the metallurgical powder;

[0033] 2. By setting a shaft pipe, a semi-circular buckle and a stirring plate in the present application, when rotating forward, the stirring plate is driven by the rotation centrifugally, and the sliding rod of the semi-circular buckle is limited by the arc-shaped groove of the shaft pipe, so that it is spirally distributed on the shaft pipe. Continuing to rotate forward, the stirring plate stirs the metallurgical materials. When rotating in reverse, the stirring plate is driven by the centrifugal force of rotation, the sliding rod of the semi-circular buckle is limited by the arc-shaped groove of the shaft pipe, and it cooperates with the filter plate to form a filtering structure to filter the metallurgical materials. Therefore, it can be switched between mixing and filtering functions under the drive of forward and reverse rotation power, thereby improving the convenience of stirring, mixing, filtering and purifying the metallurgical powder;

[0034] 3. By setting an arc-shaped discharge groove, an arc-shaped plate, a rubber arc plate and an electric telescopic rod, when the rubber arc plate is in the arc-shaped discharge groove, it vibrates due to the impact during the rotation process, providing vibration for the filtering process to prevent the metallurgical materials from blocking the holes during the filtering process. Then, when the electric telescopic rod is started again to make the rubber arc plate away from the arc-shaped discharge groove, at this time, the filtering circular mesh plate will generate centrifugal force during the rotation process to perform secondary filtering on the filtered metallurgical materials. Therefore, it can perform double filtering on the metallurgical materials and perform oscillation operation during the filtering process to prevent blocking the through holes in the filtering structure to improve the quality of the workpiece made of the metallurgical powder.

[0035] 4. By providing a connecting rod and a dial plate, the support pipe is driven to rotate by a servo motor. During the forward rotation process, the dial plate on the side is under the ratchet structure of the internal thread ring plate and cooperates with the stirring structure to perform auxiliary stirring to prevent the metallurgical materials in the middle from accumulating in the storage structure. During the reverse rotation, the dial plate is expanded outwards to contact the filtering structure formed by combining with the stirring plate, and rotation will stir it to generate vibration, and the vibration is used to vibrate the metallurgical materials blocking the holes during the filtering process, so as to prevent it from affecting the blocking of the holes in the filtering structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is the overall structural schematic diagram of the preparation equipment for gears by powder metallurgy method provided by the present application;

[0037] Figure 2 is the structural schematic diagram of the stirring assembly of the preparation equipment for gears by powder metallurgy method provided by the present application;

[0038] Figure 3Front view structural schematic diagram of the preparation equipment for gears by powder metallurgy provided by this application;

[0039] Figure 4 For Figure 3 Schematic cross-sectional view at A-A in

[0040] Figure 5 For Figure 3 Schematic cross-sectional view at B-B in

[0041] Figure 6 Partial cross-sectional structural schematic diagram of the preparation equipment for gears by powder metallurgy provided by this application;

[0042] Figure 7 For Figure 6 Enlarged structural schematic diagram at C in

[0043] Figure 8 For Figure 6 Enlarged structural schematic diagram at D in

[0044] Figure 9 Structural schematic diagram of the filtration component of the preparation equipment for gears by powder metallurgy provided by this application;

[0045] Figure 10 Structural schematic diagram of the semi-ring buckle of the preparation equipment for gears by powder metallurgy provided by this application;

[0046] Figure 11 Flow schematic diagram of the gear preparation method by powder metallurgy provided by this application.

[0047] Labels in the figure:

[0048] 1. Processing tank; 2. Hopper; 3. Support frame; 4. Discharge pipe;

[0049] 5. Stirring component; 501. Shaft tube; 502. Semi-ring buckle; 503. Stirring plate; 504. Spherical shell; 505. Filter plate; 506. Side circular plate; 507. Auxiliary shaft; 508. Servo motor; 509. Positioning rod; 510. Slide bar; 511. Arc-shaped groove; 512. First bevel gear; 513. Second bevel gear; 514. Support tube;

[0050] 6. Drying component; 601. Positioning cylinder; 602. Curved pipe; 603. Positioning frame; 604. Fan blade; 605. Heating pipe; 606. Protective shell;

[0051] 7. Feed pipe;

[0052] 8. Filter component; 801. Arc plate; 802. Filter circular mesh plate; 803. Arc-shaped discharge chute; 804. Ring-shaped bracket; 805. Positioning groove bracket; 806. Rubber arc plate; 807. Electric telescopic rod;

[0053] 9. Auxiliary component; 901. External thread; 902. Positioning ring plate; 903. Internal thread ring plate; 904. Pusher plate; 905. Rotating bracket; 906. Connecting rod; 907. Auxiliary support plate. Detailed implementation manners

[0054] In order to enable those skilled in the art to better understand the solution of the present invention, 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0055] As described in the background art, during the mixing process, the presence of moisture in metal powders or additives will affect the humidity of the metallurgical powder after mixing and the quality of the final workpiece.

[0056] To solve this technical problem, the present invention provides a method for preparing gears by powder metallurgy, which is applied to through-type solid-phase extraction.

[0057] Specifically, please refer to Figure 11 , the method for preparing gears by powder metallurgy specifically includes:

[0058] S1. Raw material selection: Select alloy powder materials according to the application and requirements of the gears;

[0059] S2. Raw material mixing: Mix the selected powders to ensure that the components in the mixture are evenly distributed, and perform a drying treatment during the stirring and mixing process to reduce the humidity and moisture in the powder materials;

[0060] S3. Compression molding: Put the uniformly mixed powder into a mold, use high-pressure equipment for pressing, and perform oscillation during the pressing process to make it fully fill the mold;

[0061] S4. Sintering: The preform undergoes a sintering process to bond the powder particles together at high temperature;

[0062] S5. Shaping and finishing: The sintered parts need to be further shaped and finished, including turning and grinding processes;

[0063] S6. Heat treatment: Adopt quenching and tempering treatment methods to change the hardness and toughness of the gears;

[0064] S7. Surface treatment: According to the requirements of the tooth surface parameters of the gear, surface treatment can be carried out, including plating and carburizing;

[0065] S8. Quality control: During the entire preparation process, quality monitoring is carried out on the gears in each step.

[0066] The selection of the alloy material therein needs to be based on the characteristics of mechanical properties, wear resistance and corrosion resistance;

[0067] Additives are introduced during the mixing process to facilitate the mixing process;

[0068] During the oscillation process, the oscillation parameters are optimized to ensure that the powder is fully filled in the mold and the porosity is reduced;

[0069] During the quality control process, ultrasonic testing and magnetic particle testing are introduced to detect hidden defects.

[0070] The gear preparation method by powder metallurgy provided by the present invention realizes the drying treatment of the metallurgical powder during the stirring and mixing process, reduces the humidity of the metallurgical powder, and improves the quality of the metallurgical powder.

[0071] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings.

[0072] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments can be combined with each other.

[0073] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0074] Embodiment 1

[0075] Please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 10 , a preparation device for gears by powder metallurgy, including a treatment tank 1, a stirring assembly 5 fixedly connected inside the treatment tank 1, drying assemblies 6 provided on both sides of the treatment tank 1, a filtering assembly 8 provided below the treatment tank 1, and a feed pipe 7 fixedly connected above the treatment tank 1;

[0076] The stirring assembly 5 includes two side circular plates 506 symmetrically and evenly distributed and fixedly installed on both sides of the inner wall of the processing tank 1. In the middle of the opposite surfaces of the two side circular plates 506, a shaft tube 501 is movably connected. A number of arc-shaped grooves 511 are spirally and evenly distributed on the outer wall of the shaft tube 501. A sliding rod 510 is movably connected to the inner wall of the arc-shaped groove 511. One end of the sliding rod 510 penetrates through the shaft tube 501 and is fixedly connected to a semi-ring buckle 502. Two stirring plates 503 are symmetrically and evenly distributed and fixedly connected to the outer wall of the semi-ring buckle 502. A number of through holes are provided on the surface of the stirring plate 503. A spherical shell 504 is movably connected between the two shaft tubes 501. Filter plates 505 are fixedly connected to the front end and the rear end of the outer wall of the spherical shell 504. A support tube 514 is movably connected below the spherical shell 504. The servo motor 508 drives the auxiliary shaft 507 and the support tube 514 to rotate forward. Under the cooperation of the two first bevel gears 512 and the second bevel gear 513, the two shaft tubes 501 rotate synchronously. Driven by the centrifugal force, the semi-ring buckles 502 distributed above the shaft tube 501 are swung and distributed in a spiral shape. And the sliding rod 510 connected to the semi-ring buckle 502 slides in the arc-shaped groove 511 for limiting. At this time, when continuing to rotate, it drives the stirring plate 503 rotating in a spiral shape to rotate in the processing tank 1, so as to stir and mix the materials in the stirring tank. When the servo motor 508 drives the auxiliary shaft 507 and the support tube 514 to rotate reversely, under the cooperation of the first bevel gear 512 and the second bevel gear 513, the two shaft tubes 501 rotate synchronously. Driven by the centrifugal force, the semi-ring buckles 502 distributed on the outer wall of the shaft tube 501 are driven, so that the stirring plates 503 connected to the outer wall thereof are spliced to form a sector plate, which cooperates with the filter plate 505 to form in the processing tank 1, so as to filter the materials entering the processing tank 1.

[0077] During the use of this embodiment, through the semi-ring buckle 502 covered above the shaft tube 501, the servo motor 508 drives the auxiliary shaft 507 and the support tube 514 to rotate forward, and the stirring plates 503 are spirally distributed on the shaft tube 501. At this time, the materials in the processing tank 1 can be evenly stirred. The servo motor 508 drives the auxiliary shaft 507 and the support tube 514 to rotate reversely. At this time, the multiple stirring plates 503 are spliced together and contact the filter plate 505. After contacting, the rotation stops, and the materials entering the processing tank 1 are filtered. It can realize the stirring of metallurgical powder during forward rotation, and the reverse rotation forms a filtering structure to realize the filtering of metallurgical powder, improving the convenience of stirring and mixing and filtering and purifying the metallurgical powder.

[0078] Further, as Figure 7As shown, on both sides of the inner wall of the spherical shell 504, two first bevel gears 512 are symmetrically and evenly distributed and movably connected. One end of the shaft tube 501 penetrates through the spherical shell 504 and is fixedly connected to the first bevel gear 512. Between the upper and lower parts of the two first bevel gears 512, a second bevel gear 513 is movably connected. The lower second bevel gear 513 is fixedly connected to the upper part of the support tube 514 that penetrates through the spherical shell 504. The shaft rod of the upper second bevel gear 513 is movably connected to the upper part of the inner wall of the spherical shell 504. By driving the auxiliary shaft 507 and the support tube 514 to rotate through the servo motor 508, the lower second bevel gear 513 is driven to rotate. The first bevel gear 512 and the second bevel gear 513 are meshed with each other, and then the first bevel gear 512 between the two second bevel gears 513 is driven to rotate, so that the two shaft tubes 501 rotate, providing power for switching between the stirring state and the filtering state.

[0079] Embodiment 2

[0080] The gear preparation equipment of the powder metallurgy method provided in Embodiment 1 is further optimized. Specifically, as Figure 6 With Figure 8 As shown, drying components 6 are provided on both sides of the treatment tank 1. The drying component 6 includes a positioning cylinder 601 movably connected to the treatment tank 1 through one end of the shaft tube 501 away from the spherical shell 504. The other end of the positioning cylinder 601 is fixedly connected to a curved tube 602. In the middle of the other ends of the two curved tubes 602, a protective shell 606 is fixedly connected. A number of heating tubes 605 are fixedly connected to the upper part of the inner wall of the protective shell 606 in a circumferentially uniform distribution. In the stirring state, the sliding rod 510 slides in the arc-shaped groove 511, and the notch of the half-ring buckle 502 corresponds to the opened arc-shaped groove 511. Then the heating tubes 605 are started, and high-temperature gas is generated around the heating tubes 605. At the same time as stirring, the auxiliary shaft 507 drives the fan blade 604 to rotate, generating an air flow to drive the high-temperature gas around the heating tubes 605 into the curved tube 602, flowing along the curved tube 602 into the shaft tube 501, and being led out by the arc-shaped groove 511, so as to dry the metallurgical powder in the treatment tank 1.

[0081] During the use of this embodiment, the rotating auxiliary shaft 507 drives the fan blade 604 to rotate, generating an air flow to guide the high-temperature gas around the heating tubes 605, which is led out by the arc-shaped groove 511 on the outer wall of the shaft tube 501, drying the metallurgical powder being stirred in the treatment tank 1, thereby reducing the moisture content of the metallurgical powder, reducing the humidity of the metallurgical powder, and improving the quality of the metallurgical powder.

[0082] Furthermore, as Figure 4As shown, a positioning groove frame 805 is movably connected below the support pipe 514, a ring-shaped clamping frame 804 is movably connected below the positioning groove frame 805, an auxiliary shaft 507 is movably connected in the middle of the ring-shaped clamping frame 804, a servo motor 508 is fixedly connected below the auxiliary shaft 507 through the protective shell 606, and a fan blade 604 is fixedly connected below the outer wall of the auxiliary shaft 507. The auxiliary shaft 507 driven by the servo motor 508 rotates, and drives the fan blade 604 to rotate, so as to entrap the high-temperature gas around the heating pipe 605 and introduce it into the curved pipe 602.

[0083] Embodiment 3

[0084] The preparation equipment of the gear by powder metallurgy method provided in Embodiment 1 or 2 is further optimized. Specifically, as Figure 3 、 Figure 4 、 Figure 8 and Figure 9 As shown, the filtering component 8 includes a plurality of arc-shaped discharge grooves 803 evenly distributed in a circumferential manner on the lower surface of the processing tank 1. An arc-shaped plate 801 is movably connected to the inner wall of the arc-shaped discharge groove 803. A rubber arc plate 806 is fixedly connected to the upper surface of the arc-shaped plate 801. A filtering circular mesh plate 802 is fixedly connected between a plurality of arc-shaped plates 801. By starting the contraction of the electric telescopic rod 807, the ring-shaped clamping frame 804 is driven to disengage from the positioning groove frame 805, so that the arc-shaped plate 801 disengages from the arc-shaped discharge groove 803 in the processing tank 1, and the rubber arc plate 806 above the arc-shaped plate 801 is still in the arc-shaped discharge groove 803. At this time, the servo motor 508 is started, which drives a plurality of arc-shaped plates 801 to rotate, and the rubber arc plate 806 above the arc-shaped plate 801 will continuously impact the arc-shaped discharge groove 803, generating vibration. At this time, the particulate matter blocked in the through holes and mesh holes during the filtering process is vibrated, so that it passes through the through holes in the filter plate 505 and the stirring plate 503. The electric telescopic rod 807 is controlled again to move away from the arc-shaped discharge groove 803, and the metallurgical material flowing into the filtering circular mesh plate 802 along the arc-shaped discharge groove 803 is driven by the centrifugal force generated during the rotation of the filtering circular mesh plate 802 to perform secondary filtering on the metallurgical material in the filtering circular mesh plate 802.

[0085] During the use of this embodiment, during the rotation of the rubber arc plate 806 above the arc plate 801, it impacts the inner wall of the arc-shaped discharge chute 803, generating vibrations to provide vibrations for the filtering process, preventing the metallurgical materials from blocking the holes during the filtering process. Then, the electric telescopic rod 807 is activated again, causing the rubber arc plate 806 to move away from the arc-shaped discharge chute 803. The filtering circular mesh plate 802 below the arc plate 801 will generate centrifugal force during rotation, and under the drive of the centrifugal force, the metallurgical materials in the filtering circular mesh plate 802 will be secondarily filtered, enabling double filtration of the metallurgical materials and performing oscillation operations during the filtering process to prevent blockage of the through holes in the filtering structure and improve the quality of the workpieces made of metallurgical powder.

[0086] Further, as Figure 4 shown in Figure 8 Fig. [7], a number of electric telescopic rods 807 are fixedly connected in a circumferentially uniform distribution below the annular bracket 804. The lower part of the electric telescopic rod 807 is fixedly installed above the protective shell 606. The electric telescopic rod 807 drives the annular bracket 804 to perform lifting operations, thereby controlling the connection and disconnection between the annular bracket 804 and the positioning groove bracket 805, and adjusting the distance between the rubber arc plate 806 and the arc-shaped discharge chute 803.

[0087] Further, as Figure 1 shown in Figure 6 Fig.

[14] and Figure 8 Fig.

[15] , a number of positioning rods 509 are fixedly connected in a circumferentially uniform distribution below the outer wall of the protective shell 606. The lower parts of the number of positioning rods 509 are fixedly connected to a funnel 2. Two positioning brackets 603 are fixedly connected in a symmetric and uniform distribution above the funnel 2. The positioning bracket 603 is movably connected to the positioning cylinder 601. The lower part of the funnel 2 is fixedly connected to a discharge pipe 4. A number of support frames 3 are fixedly connected in a circumferentially uniform distribution below the outer wall of the funnel 2. When the electric telescopic rod 807 drives the arc plate 801 away from the arc-shaped discharge chute 803, the treatment tank 1 is opened, and the secondarily filtered metallurgical materials enter the funnel 2 and are then discharged through the discharge pipe 4 below the funnel 2.

[0088] Embodiment 4

[0089] The preparation equipment for gears by powder metallurgy provided in Embodiment 1, 2 or 3 is further optimized. Specifically, as Figure 4 shown in Figure 6As shown in the figure, the auxiliary component 9 includes an external thread 901 provided below the outer wall of the support tube 514. A positioning ring plate 902 is movably connected above the support tube 514. The outer wall of the external thread 901 is movably connected with an internal thread ring plate 903. A number of rotating frames 905 are fixedly connected to the outer walls of the positioning ring plate 902 and the internal thread ring plate 903 in a circumferentially uniform distribution. The other end of the rotating frame 905 is movably connected with a connecting rod 906. An auxiliary frame plate 907 is movably connected between two connecting rods 906 on the same side. One end of the auxiliary frame plate 907 away from the support tube 514 is fixedly connected with a dial plate 904. The support tube 514 is driven to rotate by a servo motor 508. When mixing and stirring metallurgical materials, the internal thread ring plate 903 on the outer wall of the support tube 514 is a ratchet structure and is in a locked state at this time, which drives the dial plate 904 to assist in stirring the metallurgical materials, improving the uniformity of the mixing and stirring process. When rotating in reverse and performing a filtering operation, the support tube 514 is driven to rotate in reverse, and the internal thread ring plate 903 moves upward along the external thread 901. With the assistance of the rotating frame 905, the angle between the two connecting rods 906 gradually decreases, and the auxiliary frame plate 907 gradually moves away from the support tube 514, causing the dial plate 904 to directly stir the filtering structure formed by splicing the stirring plates 503, generating vibrations. These vibrations act on the metallurgical materials that block the holes during the filtering process to prevent them from affecting the holes of the blocked filtering structure.

[0090] During the use of this embodiment, the support tube 514 is driven to rotate by the servo motor 508. During the forward rotation process, the dial plate 904 on its side is under the ratchet structure of the internal thread ring plate 903 and assists in stirring in cooperation with its stirring structure to prevent the metallurgical materials in the middle from accumulating in the storage structure. During the reverse rotation, the dial plate 904 expands outward, making it contact the filtering structure formed by splicing the stirring plates 503. Rotation then stirs it, generating vibrations. These vibrations act on the metallurgical materials that block the holes during the filtering process to prevent them from affecting the holes of the blocked filtering structure.

[0091] The usage process of the gear preparation method and application provided by the present invention using powder metallurgy is as follows:

[0092] Working principle: The staff introduces the metallurgical materials to be filtered into the processing tank 1 through the feed pipe 7. When the servo motor 508 is started to drive the auxiliary shaft 507 and the support pipe 514 to rotate forward, under the cooperation of the two first bevel gears 512 and the second bevel gear 513, the two shaft pipes 501 rotate synchronously. Driven by centrifugal force, the half-ring buckles 502 distributed above the shaft pipe 501 are swung and distributed in a spiral shape. And the slide rod 510 connected to the half-ring buckle 502 slides in the arc-shaped groove 511 for limiting. At this time, if it continues to rotate, it will drive the stirring plate 503 rotating in a spiral shape to rotate in the processing tank 1, so as to stir and mix the materials in the stirring tank. In the stirring state, the slide rod 510 slides in the arc-shaped groove 511, and the notch of the half-ring buckle 502 corresponds to the opened arc-shaped discharge groove 803. Then the heating pipe 605 is started, and high-temperature gas is generated around the heating pipe 605. And while stirring, the auxiliary shaft 507 drives the fan blade 604 to rotate, generating an air flow to drive the high-temperature gas around the heating pipe 605 into the curved pipe 602, flowing along the curved pipe 602 into the shaft pipe 501, and being discharged from the arc-shaped discharge groove 803, so as to dry the metallurgical powder in the processing tank 1. And the servo motor 508 drives the support pipe 514 to rotate. When mixing and stirring the metallurgical materials, the internal thread ring plate 903 on the outer wall of the support pipe 514 is a ratchet structure. At this time, in the locked state, it drives the baffle 904 to assist in stirring the metallurgical materials, improving the uniformity of the mixing and stirring process. When the servo motor 508 drives the auxiliary shaft 507 and the support pipe 514 to rotate in the reverse direction, under the cooperation of the first bevel gear 512 and the second bevel gear 513, the two shaft pipes 501 rotate synchronously. Driven by centrifugal force, the half-ring buckles 502 distributed on the outer wall of the shaft pipe 501 are driven, so that the stirring plate 503 connected to its outer wall is spliced to form a fan-shaped plate, which cooperates with the filter plate 505 to form in the processing tank 1, so as to filter the materials entering the processing tank 1. And during the filtering process, the electric telescopic rod 807 is started to contract, which drives the annular clamping frame 804 to disengage from the positioning groove frame 805, so that the arc-shaped plate 801 disengages from the arc-shaped discharge groove 803 in the processing tank 1. And the rubber arc plate 806 above the arc-shaped plate 801 is still in the arc-shaped discharge groove 803. At this time, the servo motor 508 is started, which drives a plurality of arc-shaped plates 801 to rotate, and the rubber arc plate 806 above the arc-shaped plate 801 will continuously impact the arc-shaped discharge groove 803, generating vibration. At this time, the particles blocked in the through holes and mesh holes during the filtering process are vibrated, so that they pass through the through holes in the filter plate 505 and the stirring plate 503. And when the servo motor 508 rotates in the reverse direction and performs the filtering operation, it drives the support pipe 514 to rotate in the reverse direction, and the internal thread ring plate 903 moves upward along the external thread 901. With the assistance of the rotating frame 905, the angle between the two connecting rods 906 gradually decreases.The auxiliary frame plate 907 is gradually moved away from the support tube 514, so that the paddle plate 904 directly paddles the filter structure composed of the stirring plate 503, thereby generating vibrations. The vibrations have an impact on the metallurgical materials that clog the holes during the filtration process, thereby preventing them from affecting the holes of the filtration structure. The electric telescopic rod 807 is controlled again to move away from the arc-shaped discharge trough 803, and the metallurgical materials that follow the arc-shaped discharge trough 803 and enter the filter disc 802 are driven by the centrifugal force generated during the rotation of the filter disc 802, and the metallurgical materials in the filter disc 802 are filtered for the second time.

[0093] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0094] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A powder metallurgy gear manufacturing device, characterized in that: It comprises a processing tank (1), wherein a stirring assembly (5) is fixedly connected inside the processing tank (1), drying assemblies (6) are arranged on both sides of the processing tank (1), and a filtering assembly (8) is arranged below the processing tank (1); A stirring assembly (5) comprises two side circular plates (506) symmetrically and evenly distributed and fixedly mounted on both sides of the inner wall of the processing tank (1); a shaft tube (501) is movably connected to the middle of the opposite surfaces of the two side circular plates (506); a plurality of arc grooves (511) are evenly distributed in a spiral on the outer wall of the shaft tube (501); a sliding rod (510) is movably connected to the inner wall of the arc groove (511); One end of the slide rod (510) passes through the shaft tube (501) and is fixedly connected with a semi-ring buckle (502); the outer wall of the semi-ring buckle (502) is symmetrically and evenly distributed and fixedly connected with two stirring plates (503); the surface of the stirring plates (503) is provided with a plurality of through holes; a spherical shell (504) is movably connected between the two shaft tubes (501); the front end and the rear end of the outer wall of the spherical shell (504) are fixedly connected with a filter plate (505); a support tube (514) is movably connected below the spherical shell (504); an auxiliary component (9) is provided on the outer wall of the support tube (514); the auxiliary component (9) includes an external thread (901) provided below the outer wall of the support tube (514); a positioning ring plate (902) is movably connected above the support tube (514); Through the half ring buckle (502) covered on the shaft tube (501), the servo motor (508) drives the auxiliary shaft (507) and the support tube (514) to rotate in the forward direction, and the stirring plate (503) is spirally distributed on the shaft tube (501). At this time, the material in the processing tank (1) can be evenly stirred. The servo motor (508) drives the auxiliary shaft (507) and the support tube (514) to rotate in the reverse direction. At this time, multiple stirring plates (503) are spliced ​​together and contact with the filter plate (505). After contact, they stop rotating and filter the material entering the processing tank (1). The metallurgical powder can be stirred in the forward rotation, and the reverse rotation forms a filtering structure to filter the metallurgical powder.

2. The powder metallurgy gear manufacturing equipment according to claim 1, characterized in that: The drying assembly (6) comprises an end of the shaft tube (501) away from the spherical shell (504) which penetrates through the processing tank (1) and is movably connected to a positioning tube (601); the other end of the positioning tube (601) is fixedly connected to a curved tube (602); a protective shell (606) is fixedly connected between the other ends of the two curved tubes (602); and a plurality of heating tubes (605) are evenly distributed and fixedly connected to the inner wall of the protective shell (606) in a circumferential manner.

3. The powder metallurgy gear manufacturing equipment according to claim 2, characterized in that: The filter assembly (8) comprises a plurality of arc-shaped discharge grooves (803) evenly distributed in a circumference on the lower surface of the processing tank (1), wherein the inner wall of the arc-shaped groove (511) is movably connected to an arc-shaped plate (801), and the upper surface of the arc-shaped plate (801) is fixedly connected to a rubber arc plate (806).

4. The powder metallurgy gear manufacturing equipment according to claim 2, characterized in that: Two first bevel gears (512) are symmetrically and evenly distributed and movably connected on both sides of the inner wall of the spherical shell (504); one end of the shaft tube (501) passes through the spherical shell (504) and is fixedly connected to the first bevel gears (512); and a second bevel gear (513) is movably connected between the upper and lower parts of the two first bevel gears (512).

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