Intelligent positioning full hydraulic steering gear stator and rotor and powder metallurgy manufacturing process

Abstract

The present invention discloses a stator and rotor of an intelligent positioning full hydraulic steering gear and a powder metallurgy manufacturing process, including an inner rotor and a stator, the inner rotor is located in the stator and cooperates with each other, an inner concave tooth is provided in the stator, an outer convex tooth is provided outside the inner rotor, the outer convex tooth and the inner concave tooth can mesh with each other, a central through hole matching with a shaft is provided in the center of the inner rotor, an arc-shaped connecting surface protruding toward the center of the stator is provided between two adjacent inner concave teeth, an arc-shaped contact surface protruding toward the outer wall of the inner rotor and matching with the arc-shaped connecting surface is provided between two adjacent outer convex teeth, a first annular lightening groove is provided on the side of each inner concave tooth, a second annular lightening groove close to the central through hole is provided on the inner side of each arc-shaped contact surface, an inductor and a controller are provided on the side of the stator, the controller is electrically connected to the inductor, and a generator that can obtain mechanical energy and perform autonomous power generation according to the rotation of the rotor is provided in the inner rotor. The present invention is convenient for later reference.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgy, in particular to a stator and rotor of an intelligent positioning full hydraulic steering gear and a powder metallurgy manufacturing process. Background Art

[0002] Full hydraulic steering technology is usually used for hydraulic steering of non-road wheeled mobile vehicles with a speed of ≤60km / h. Full hydraulic steering has many advantages such as easy operation, flexible steering and convenient installation and layout. The hydraulic steering system composed of a full hydraulic steering gear, a hydraulic pump and a hydraulic cylinder realizes the power steering of the vehicle. Whether it is international or domestic, full hydraulic steering technology has been widely used in the steering systems of wheeled excavators, loaders, rollers, forklifts, large and medium horsepower tractors and combine harvesters. No matter which full hydraulic steering system, its technical innovation and fault-prone parts are always inseparable from the steering control element-full hydraulic steering gear. The full hydraulic steering gear is a type of hydraulic power steering that does not require a connecting rod to connect the steering wheel and the steering control mechanism. It has the advantages of light and flexible operation, simple structure, low price, and convenient installation and layout of the whole machine. The stator and rotor pair of the full hydraulic steering gear is used in automobile engines and plays a very important role, and the rotor in the full hydraulic steering gear is also a key accessory.

[0003] However, there are problems with the current full hydraulic steering gear stator and rotor: 1. Since the quality of the rotor directly affects the working efficiency of the full hydraulic steering gear, it is extremely important. However, the current rotors are equipped by some manufacturers themselves. Considering that there are many auto parts, the manufacturer cannot know whether the internal rotor of the cabinet model is produced by itself after the rotor is installed. It can only be checked after the entire full hydraulic steering gear is disassembled, which is inconvenient for maintenance after installation; 2. From the material point of view, the rotor and stator of the existing full hydraulic steering gear stator and rotor pair are usually made by steel machining. It has the disadvantages of fixed material composition, poor wear resistance, low processing efficiency, low material utilization, low processing accuracy, poor rust resistance, etc., which cannot meet market requirements, so it needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned deficiencies in the prior art and to provide a stator and rotor of an intelligent positioning full hydraulic steering gear with improved strength and corrosion resistance and a powder metallurgy manufacturing process.

[0005] In order to achieve the above-mentioned purpose, the present invention is designed to provide a stator and rotor of an intelligent positioning full hydraulic steering gear, comprising an inner rotor and a stator, wherein the inner rotor is located in the stator and cooperates with each other, wherein the stator is provided with one or more inner concave teeth, and the inner rotor is provided with an outer convex tooth whose number is one less than the number of the inner concave teeth, and the outer convex tooth and the inner concave tooth can mesh with each other, and a central through hole cooperating with the shaft is provided at the center of the inner rotor, an arc-shaped connecting surface protruding toward the center of the stator is provided between two adjacent inner concave teeth, and an arc-shaped connecting surface protruding toward the outer wall of the inner rotor and cooperating with the arc-shaped connecting surface is provided between two adjacent outer convex teeth. A contact surface is provided with a first annular relief groove on the side of each concave tooth, a second annular relief groove close to the central through hole is provided on the inner side of each arc-shaped contact surface, a sensor connected to a receiver of the maintenance department for communication and a controller for storing information of the rotor are provided on the side of the stator, the controller is electrically connected to the sensor, a generator is provided in the inner rotor for generating electricity autonomously by obtaining mechanical energy when the rotor rotates, the generator is wirelessly charged with the controller and the battery on the side of the sensor, and the battery supplies power to the controller and the sensor.

[0006] Furthermore, to improve the corrosion resistance, the inductor is exposed on the side of the stator, and a layer of epoxy resin is coated on the outside of the inductor.

[0007] Furthermore, the controller pre-stores the model, size and manufacturer information of the inner rotor and the stator, and a QR code for storing the model, size and manufacturer information of the inner rotor and the stator is provided outside the stator.

[0008] Further, in order to improve the wear resistance, an arc-shaped ceramic sheet is integrally formed on the end face of each external convex tooth and serves as the external convex tooth end face to cooperate with the internal concave tooth.

[0009] The present invention also discloses a powder metallurgy of a stator and rotor of an intelligent positioning full hydraulic steering gear, comprising raw materials in the following combinations in parts by weight: 35-45 parts of iron powder, 10-12 parts of carbon powder, 3-8 parts of colloidal graphite, 8-12 parts of electrolytic copper, 1-2 parts of aluminum-magnesium alloy powder, 4-7 parts of copper powder, 3-5 parts of nickel powder, 1-1.5 parts of titanium powder, 1-3 parts of molybdenum powder, 5-10 parts of powder wax, 1-3 parts of manganese, 10-15 parts of spindle oil and 25-30 parts of adhesive.

[0010] Furthermore, to improve the antiseptic property, the following raw materials are also included in combination according to weight parts: 2-3 parts of preservatives.

[0011] Further, to improve the wear resistance, the invention also includes the following raw materials in combination by weight: 2-3 parts of wear resistance agent.

[0012] The present invention also discloses a powder metallurgy manufacturing process for a stator and rotor of an intelligent positioning full hydraulic steering gear, which specifically comprises the following steps:

[0013] Stator processing:

[0014] S1. Batching: Batching according to the preset raw materials; then sieving the raw materials that need to be sifted to filter out impurities;

[0015] S2, mixing powder: pour the screened raw materials into the powder mixer and mix for 40-50 minutes, pour out and cool before proceeding to the next step;

[0016] S3, forming: using a mold designed for the automobile balance shaft structure, loading an appropriate amount of the mixed powder in step S2 into the mold, placing it on a 100T mechanical press, and pressing it once to form the final structure of the stator;

[0017] S4, sintering: put the pressed blank into the sintering furnace, and sinter for 20-30 minutes in a nitrogen-hydrogen mixed gas protective atmosphere at a sintering temperature of 1100-1200°C;

[0018] S5, machining: on the CNC lathe, clamp with a fixture and machine the corresponding holes;

[0019] S6. Heat treatment: using a heat treatment furnace, quenching in a carbonitriding mixed atmosphere at 850°C for 60-90min, oil cooling at a cooling rate of 110°C / 10min, and tempering at 180°C for 2h;

[0020] S7, finishing: use a fixture to clamp on a precision CNC lathe to machine the inner hole to the required size;

[0021] S8, deburring, surface polishing and smoothing, starting the exhaust fan, and the exhaust fan absorbs the debris generated by the processing;

[0022] S9, installing the controller 11 and the sensor 10, and packaging and fixing them for standby use;

[0023] Inner rotor processing: S10, batching: batching according to the preset raw materials; then sieving the raw materials that need to be sifted to filter out impurities;

[0024] S11, forming: using a mold designed for the automobile balance shaft structure, loading an appropriate amount of the mixed powder in step S10 into the mold, placing it on a 100T mechanical press, and pressing and forming the final structural shape of the inner rotor in one step; a generator needs to be installed during the press forming process;

[0025] S13, sintering: putting the pressed blank into a sintering furnace, and sintering for 20-30 minutes in a nitrogen-hydrogen mixed gas protective atmosphere at a sintering temperature of 1100-1200°C;

[0026] S14, machining: on a CNC lathe, clamp with a fixture and machine the corresponding holes;

[0027] S15, heat treatment: using a heat treatment furnace, quenching in a carbonitriding mixed atmosphere at 850°C for 60-90min, oil cooling at a cooling rate of 110°C / 10min, and tempering at 180°C for 2h;

[0028] S16, Finishing: Use a fixture to clamp on a precision CNC lathe to machine the inner hole to the required size;

[0029] S17, deburring, smoothing the surface, starting the exhaust fan, and sucking the debris generated by the processing for standby;

[0030] S18, Steam treatment: After cleaning and drying the stator, steam treatment is performed, and then oil immersion and packaging; the inner rotor does not need steam treatment and is directly oil-immersed and packaged.

[0031] The invention provides an intelligent positioning full hydraulic steering gear stator and rotor and powder metallurgy manufacturing process, wherein a sensor connected to a maintenance department receiver for communication and a controller for storing information of the rotor are provided on the side of the stator, the controller is electrically connected to the sensor, a generator capable of obtaining mechanical energy to generate electricity autonomously when the rotor rotates is provided in the inner rotor, the generator is wirelessly charged with a battery on the controller and the side of the sensor, the battery supplies power to the controller and the sensor, when the inner rotor rotates, the generator converts mechanical energy into electrical energy and sends it to the battery, the battery supplies power to the controller and the sensor, when the maintenance department receiver senses the corresponding sensor, the information stored in the corresponding controller is obtained, and finally it is quickly known whether the stator and rotor of the corresponding positioning full hydraulic steering gear belong to the corresponding manufacturer, and it can be known without dismantling the internal structure, and the structure is made stronger by mixing iron powder, carbon powder, colloidal graphite, electrolytic copper, aluminum-magnesium alloy powder, copper powder, nickel powder, titanium powder, molybdenum powder, powder wax, spindle oil and adhesive with W water, so as to achieve the advantages of high strength and high wear resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the implementation of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0033] Figure 1 It is a schematic diagram of the powder metallurgy overall structure of the stator and rotor of an intelligent positioning full hydraulic steering gear in Example 1;

[0034] Figure 2 It is a schematic diagram of the powder metallurgy overall structure of the stator and rotor of an intelligent positioning full hydraulic steering gear in Example 2;

[0035] Figure 3It is a schematic diagram of the powder metallurgy overall structure of the stator and rotor of an intelligent positioning full hydraulic steering gear in Example 3;

[0036] Figure 4 It is a schematic diagram of the overall structure of the inner rotor in Example 4.

[0037] In the accompanying drawings: inner rotor 1, stator 2, inner concave teeth 3, outer convex teeth 4, central through hole 5, arc-shaped connecting surface 6, arc-shaped contact surface 7, first lightening groove 8, second lightening groove 9, sensor 10, controller 11, generator 12, epoxy resin layer 13, ceramic sheet 14, QR code 15, battery 16. DETAILED DESCRIPTION

[0038] The invention will be further described below in conjunction with embodiments.

[0039] Embodiment 1:

[0040] This embodiment provides an intelligent positioning full hydraulic steering gear stator and rotor, referring to Figure 1 , comprising an inner rotor 1 and a stator 2, wherein the inner rotor 1 is located in the stator 2 and cooperates with each other, wherein the stator 2 is provided with one or more inner concave teeth 3, wherein the inner rotor 1 is provided with an outer convex tooth 4 whose number is one less than the number of the inner concave teeth 3, and the outer convex tooth 4 and the inner concave teeth 3 can mesh with each other, wherein a central through hole 5 cooperating with the shaft is provided at the center of the inner rotor 1, an arc-shaped connecting surface 6 protruding toward the center of the stator 2 is provided between two adjacent inner concave teeth 3, an arc-shaped contact surface 7 protruding toward the outer wall of the inner rotor 1 and cooperating with the arc-shaped connecting surface 6 is provided between two adjacent outer convex teeth 4, and a circular ring is provided on the side of each inner concave tooth 3 A first lightening groove 8 is provided in the shape of a circle, and a second lightening groove 9 is provided in an annular shape close to the central through hole 5 on the inner side of each arc-shaped contact surface 7. A sensor 10 connected to a receiver of the maintenance department for communication and a controller 11 for storing information of the rotor are provided on the side of the stator 2. The controller 11 is electrically connected to the sensor 10. A generator 12 is provided in the inner rotor 1 for autonomously generating electricity by obtaining mechanical energy when the rotor rotates. The generator 12 is wirelessly charged and connected to the controller 11 and a battery 16 on the side of the sensor 10. The battery 16 supplies power to the controller 11 and the sensor 10.

[0041] The present embodiment also discloses a powder metallurgy of a stator and rotor of an intelligent positioning fully hydraulic steering gear, comprising raw materials in the following combination in parts by weight: 35-45 parts of iron powder, 10-12 parts of carbon powder, 3-8 parts of colloidal graphite, 8-12 parts of electrolytic copper, 1-2 parts of aluminum-magnesium alloy powder, 4-7 parts of copper powder, 3-5 parts of nickel powder, 1-1.5 parts of titanium powder, 1-3 parts of molybdenum powder, 5-10 parts of powdered wax, 1-3 parts of manganese, 10-15 parts of spindle oil and 25-30 parts of adhesive.

[0042] In this embodiment, the raw materials are combined according to the following weight parts: 42 parts of iron powder, 11 parts of carbon powder, 6 parts of colloidal graphite, 10 parts of electrolytic copper, 1 part of aluminum-magnesium alloy powder, 5 parts of copper powder, 4 parts of nickel powder, 1 part of titanium powder, 2 parts of molybdenum powder, 6 parts of powdered wax, 1 part of manganese, 11 parts of spindle oil and 28 parts of adhesive.

[0043] Further, to improve the antiseptic property, the raw materials are also included in the following weight proportions: 2-3 parts of preservatives. 2.5 parts of the preservatives.

[0044] Further, to improve the wear resistance, the invention also includes the following raw materials in combination according to weight: 2-3 parts of wear-resistant agent. 2.5 parts of the wear-resistant agent.

[0045] This embodiment also discloses a powder metallurgy manufacturing process for the stator and rotor of an intelligent positioning full hydraulic steering gear, which specifically includes the following steps:

[0046] Stator processing:

[0047] S1. Batching: Batching according to the preset raw materials; then sieving the raw materials that need to be sifted to filter out impurities;

[0048] S2, mixing powder: pour the screened raw materials into the powder mixer and mix for 40-50 minutes, pour out and cool before proceeding to the next step;

[0049] S3, forming: using a mold designed for the automobile balance shaft structure, loading an appropriate amount of the mixed powder in step S2 into the mold, placing it on a 100T mechanical press, and pressing it once to form the final structure of the stator;

[0050] S4, sintering: put the pressed blank into the sintering furnace, and sinter for 20-30 minutes in a nitrogen-hydrogen mixed gas protective atmosphere at a sintering temperature of 1100-1200°C;

[0051] S5, machining: on the CNC lathe, clamp with a fixture and machine the corresponding holes;

[0052] S6. Heat treatment: using a heat treatment furnace, quenching in a carbonitriding mixed atmosphere at 850°C for 60-90min, oil cooling at a cooling rate of 110°C / 10min, and tempering at 180°C for 2h;

[0053] S7, finishing: use a fixture to clamp on a precision CNC lathe to machine the inner hole to the required size;

[0054] S8, deburring, surface polishing and smoothing, starting the exhaust fan, and the exhaust fan absorbs the debris generated by the processing;

[0055] S9, installing the controller 11 and the sensor 10, and packaging and fixing them for standby use;

[0056] Inner rotor processing: S10, batching: batching according to the preset raw materials; then sieving the raw materials that need to be sifted to filter out impurities;

[0057] S11, forming: using a mold designed for the automobile balance shaft structure, loading an appropriate amount of the mixed powder in step S10 into the mold, placing it on a 100T mechanical press, and pressing and forming the final structural shape of the inner rotor in one step; during the press forming process, a generator 12 needs to be installed;

[0058] S13, sintering: putting the pressed blank into a sintering furnace, and sintering for 20-30 minutes in a nitrogen-hydrogen mixed gas protective atmosphere at a sintering temperature of 1100-1200°C;

[0059] S14, machining: on a CNC lathe, clamp with a fixture and machine the corresponding holes;

[0060] S15, heat treatment: using a heat treatment furnace, quenching in a carbonitriding mixed atmosphere at 850°C for 60-90min, oil cooling at a cooling rate of 110°C / 10min, and tempering at 180°C for 2h;

[0061] S16, Finishing: Use a fixture to clamp on a precision CNC lathe to machine the inner hole to the required size;

[0062] S17, deburring, smoothing the surface, starting the exhaust fan, and sucking the debris generated by the processing for standby;

[0063] S18, steam treatment: the stator 2 is cleaned and dried, and then steam treated, and then immersed in oil and packaged; the inner rotor 1 does not need to be steam treated, and is directly immersed in oil and packaged.

[0064] Since the overall cost is reduced by reducing the slots in the structural setting, a sensor 10 connected to the receiver of the maintenance department and a controller 11 for storing the information of the rotor are provided on the side of the stator 2. The controller 11 is electrically connected to the sensor 10. A generator 12 is provided in the inner rotor 1 for autonomously generating electricity by obtaining mechanical energy when the rotor rotates. The generator 12 is wirelessly charged with the controller 11 and the battery 16 on the side of the sensor 10. The battery 16 supplies power to the controller 11 and the sensor 10. When the inner rotor 1 rotates, the generator 12 converts the mechanical energy into electrical energy. , and sent to the battery 16, which supplies power to the controller 11 and the sensor 10. When the maintenance department receiver senses the corresponding sensor 10, the information stored in the corresponding controller 11 is obtained, and finally it is quickly known whether the stator and rotor of the corresponding positioning full hydraulic steering gear are owned by the corresponding manufacturer, without dismantling the internal structure. In addition, the structure is made stronger by the proportion of iron powder, carbon powder, colloidal graphite, electrolytic copper, aluminum-magnesium alloy powder, copper powder, nickel powder, titanium powder, molybdenum powder, powder wax, spindle oil and adhesive, so as to achieve the advantages of high strength and high wear resistance.

[0065] It has been verified that the stator and rotor of the intelligent positioning full hydraulic steering gear made by the above process have the following performance parameters: hardness: HRC45, tensile strength: 455N / mm2, compressive strength: 1560MPa, impact value AK: 5.50KJ / m2, so the inner and outer rotors with high strength and high wear resistance have a product density greater than 6g / cm 3 , surface hardness>85, core hardness≥80.

[0066] Embodiment 2:

[0067] This embodiment provides an intelligent positioning full hydraulic steering gear stator and rotor and powder metallurgy manufacturing process, referring to Figure 1 Further, to improve the corrosion resistance, the inductor 10 is exposed from the side of the stator 2, and an epoxy resin layer 13 is coated on the outside of the inductor 10, and the epoxy resin layer 13 is provided to provide corrosion resistance.

[0068] Embodiment 3: This embodiment provides an intelligent positioning full hydraulic steering gear stator and rotor and powder metallurgy manufacturing process, referring to Figure 1 Furthermore, the controller 11 pre-stores the model, size and manufacturer information of the inner rotor 1 and the stator 2, and a QR code 15 for storing the model, size and manufacturer information of the inner rotor 1 and the stator 2 is provided outside the stator 2. The QR code 15 is provided to facilitate data query.

[0069] Embodiment 4:

[0070] This embodiment provides an intelligent positioning full hydraulic steering gear stator and rotor and powder metallurgy manufacturing process, referring to Figure 1 Further, to improve the wear resistance, an arc-shaped ceramic sheet 14 is integrally formed on the end face of each outer convex tooth 4 and serves as the end face of the outer convex tooth 4 to cooperate with the inner concave tooth 3. The ceramic sheet 14 is provided to improve the wear resistance.

[0071] Embodiment 5:

[0072] The present embodiment discloses a powder metallurgy of a stator and rotor of an intelligent positioning fully hydraulic steering gear, comprising raw materials combined in the following weight portions: 35 parts of iron powder, 10 parts of carbon powder, 3 parts of colloidal graphite, 8 parts of electrolytic copper, 1 part of aluminum-magnesium alloy powder, 4 parts of copper powder, 3 parts of nickel powder, 1 part of manganese, 1 part of titanium powder, 1 part of molybdenum powder, 5 parts of powder wax, 10 parts of spindle oil and 25 parts of adhesive.

[0073] Embodiment 6:

[0074] The present embodiment discloses a powder metallurgy of a stator and rotor of an intelligent positioning fully hydraulic steering gear, comprising raw materials combined in the following weight portions: 42 parts of iron powder, 11 parts of carbon powder, 7 parts of colloidal graphite, 11 parts of electrolytic copper, 1.5 parts of aluminum-magnesium alloy powder, 6 parts of copper powder, 4.5 parts of nickel powder, 2 parts of manganese, 1.2 parts of titanium powder, 2.5 parts of molybdenum powder, 6 parts of powder wax, 13 parts of spindle oil and 27 parts of adhesive.

[0075] Embodiment 7:

[0076] The present embodiment discloses a powder metallurgy of a stator and rotor of an intelligent positioning fully hydraulic steering gear, including raw materials combined in the following weight portions: 44 parts of iron powder, 11 parts of carbon powder, 7 parts of colloidal graphite, 11 parts of electrolytic copper, 1 part of aluminum-magnesium alloy powder, 6 parts of copper powder, 4 parts of nickel powder, 1 part of manganese, 1.4 parts of titanium powder, 2 parts of molybdenum powder, 9 parts of powder wax, 14 parts of spindle oil and 28 parts of adhesive.

[0077] Embodiment 8:

[0078] The present embodiment discloses a powder metallurgy of a stator and rotor of an intelligent positioning fully hydraulic steering gear, comprising raw materials combined in the following weight portions: 45 parts of iron powder, 12 parts of carbon powder, 8 parts of colloidal graphite, 12 parts of electrolytic copper, 2 parts of aluminum-magnesium alloy powder, 7 parts of copper powder, 2 parts of manganese, 5 parts of nickel powder, 1.5 parts of titanium powder, 3 parts of molybdenum powder, 10 parts of powder wax, 15 parts of spindle oil and 30 parts of adhesive.

[0079] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Although the embodiments of the present invention have been shown and described, it is understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An intelligent positioning full hydraulic steering gear stator and rotor, comprising an inner rotor (1) and a stator (2), wherein the inner rotor (1) is located in the stator (2) and cooperates with each other, wherein the stator (2) is provided with one or more inner concave teeth (3), wherein the inner rotor (1) is provided with an outer convex tooth (4) whose number is one less than the number of the inner concave teeth (3), and the outer convex tooth (4) and the inner concave teeth (3) can mesh with each other, wherein a central through hole (5) cooperating with a shaft member is provided at the center of the inner rotor (1), an arc-shaped connecting surface (6) protruding toward the center of the stator (2) is provided between two adjacent inner concave teeth (3), and an arc-shaped contact surface (7) protruding toward the outer wall of the inner rotor (1) and cooperating with the arc-shaped connecting surface (6) is provided between two adjacent outer convex teeth (4), a circular first lightening groove (8) is provided on the side of each inner concave tooth (3), and a circular second lightening groove (9) close to the central through hole (5) is provided on the inner side of each arc-shaped contact surface (7), wherein: A sensor (10) connected to a receiver of a maintenance department and a controller (11) for storing information of the rotor are provided on the side of the stator (2); the controller (11) is electrically connected to the sensor (10); a generator (12) is provided in the inner rotor (1) for generating electricity autonomously by obtaining mechanical energy when the rotor rotates; the generator (12) is wirelessly connected to the controller (11) and a battery (16) on the side of the sensor (10); the battery (16) supplies power to the controller (11) and the sensor (10); A sensor that is communicatively connected to a receiver of the maintenance department and a controller for storing information of the rotor are provided on the side of the stator. The controller is electrically connected to the sensor. A generator that can obtain mechanical energy to generate electricity autonomously when the rotor rotates is provided in the inner rotor. The generator is wirelessly charged with the controller and the battery on the side of the sensor. The battery supplies power to the controller and the sensor. When the inner rotor rotates, the generator converts mechanical energy into electrical energy and sends it to the battery, which supplies power to the controller and the sensor. When the receiver of the maintenance department senses the corresponding sensor, the information stored in the corresponding controller is obtained, and finally, it is quickly known whether the stator and rotor of the corresponding fully hydraulic steering gear are owned by the corresponding manufacturer, without dismantling the internal structure.

2. The stator and rotor of an intelligent positioning full hydraulic steering gear according to claim 1, characterized in that: The inductor (10) is exposed from the side of the stator (2), and a layer of epoxy resin (13) is coated on the outside of the inductor (10).

3. The stator and rotor of an intelligent positioning full hydraulic steering gear according to claim 1, characterized in that: The controller (11) pre-stores the model, size and manufacturer information of the inner rotor (1) and the stator (2), and a QR code (15) storing the model, size and manufacturer information of the inner rotor (1) and the stator (2) is provided outside the stator (2).

4. The stator and rotor of an intelligent positioning full hydraulic steering gear according to claim 1, characterized in that: An arc-shaped ceramic sheet (14) is integrally formed on the end surface of each external convex tooth (4) and serves as the end surface of the external convex tooth (4) to cooperate with the internal concave tooth (3).

5. A powder metallurgy of stator and rotor of intelligent positioning full hydraulic steering gear, characterized in that The invention comprises raw materials in the following combinations in parts by weight: 35-45 parts of iron powder, 10-12 parts of carbon powder, 3-8 parts of colloidal graphite, 8-12 parts of electrolytic copper, 1-2 parts of aluminum-magnesium alloy powder, 4-7 parts of copper powder, 3-5 parts of nickel powder, 1-1.5 parts of titanium powder, 1-3 parts of molybdenum powder, 1-3 parts of manganese, 5-10 parts of powder wax, 10-15 parts of spindle oil and 25-30 parts of adhesive.

6. The powder metallurgy of the stator and rotor of the intelligent positioning full hydraulic steering gear according to claim 5 is characterized by: The invention also comprises the following raw materials in combination in parts by weight: 2-3 parts of preservatives.

7. The powder metallurgy of the stator and rotor of the intelligent positioning full hydraulic steering gear according to claim 5 is characterized by: It also includes raw materials combined in the following weight parts: 2-3 parts of anti-wear agent.

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