Anti-deviation shock absorber and machining method thereof

Abstract

The anti-deviation shock absorber is provided with a shock absorber body, a movable space is formed in the shock absorber body, a piston rod is arranged in the movable space, an assembly part is arranged on the piston rod, the assembly part is an assembly hole, a front supporting plate and a rear supporting plate are arranged on the piston rod, and the front supporting plate and the rear supporting plate are arranged on the piston rod. By means of mutual matching of the magnetic particles in the magnetic fluid and the electromagnetic induction coils, the magnetic fluid formed by mixing the hydraulic oil and the magnetic particles can be matched and modulated in resistance, the intensity of a magnetic field is controlled according to the magnitude of current, and meanwhile the magnetic field can be controlled by means of the three external electromagnetic induction coils at different positions. Requirements for releasing different magnetic fields can be met, the A-area external electromagnetic induction coil can release a magnetic field in the A area, the B-area external electromagnetic induction coil can release a magnetic field in the B area, and the C-area external electromagnetic induction coil can release a magnetic field in the C area.

Description

Technical Field

[0001] The invention relates to a shock absorber and a control method thereof, and in particular to an anti-drift shock absorber and a processing method thereof. Background Art

[0002] There will be some vibrations when the vehicle is driving, and these vibrations need to be damped by shock absorbers. In order to quickly attenuate the vibrations of the frame and body and improve the smoothness and comfort of the car's driving, shock absorbers are generally installed on the car suspension system. Double-acting cylinder shock absorbers are widely used in cars. Shock absorbers are vulnerable parts during the use of the car. The operating effect of the shock absorber will directly affect the stability of the car's driving. It is necessary to consider the operation of the shock absorber in time. Timely collection of the car's driving data can make the operation of the shock absorber more intelligent, and the shock absorber should always be in good working condition.

[0003] In the prior art: CN202022057011.7 An improved automobile shock absorber. The utility model discloses an improved automobile shock absorber, which belongs to the technical field of automobile shock absorbers, including a cross beam frame, both ends of the cross beam frame are fixedly connected with fixed plates, the inner walls of the two fixed plates are movably connected with movable plates, a first spring is connected between the top of the movable plate and the bottom of the cross beam frame, a fixing rod is connected between the inner walls of the two movable plates, a fixing cylinder is fixedly connected to the outer side of the middle part of the fixing rod, a buffer assembly is connected between the top of the fixing cylinder and the bottom of the cross beam frame, a buffer plate is arranged below the fixing rod, and shock absorbing assemblies are installed on both sides of the fixed cylinder between the cross beam frame and the fixed cylinder.

[0004] Although the design of the shock absorber in the prior art is scientific and reasonable, safe and convenient to use, and can buffer and reduce the bumps of the car multiple times during use, and the buffering and shock absorbing effect is good, there is a problem of low intelligence when further intelligent shock absorber control is performed. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides an anti-drift shock absorber and a processing method thereof.

[0006] The present invention is implemented by the following technical scheme: an anti-drift shock absorber is provided with a shock absorber, an activity space is provided in the shock absorber, a piston rod is provided in the activity space, an assembly component is provided on the piston rod, the assembly component is an assembly hole, a front support plate and a rear support plate are provided on the piston rod, a protection component is provided between the front support plate and the rear support plate, a card slot is provided on the front support plate and the rear support plate, the protection component passes through the card slot, the protection component is a protection rod, characterized in that: an electric field induction component is provided on the outer side of the protection rod;

[0007] The electric field induction component is an induction coil, the induction coil is an electromagnetic induction coil, the electromagnetic induction coil is an external electromagnetic induction coil, the external electromagnetic induction coil is distributed outside the shock absorber, an energized component is arranged outside the electromagnetic induction coil, and the energized component and the electromagnetic induction coil are connected to each other;

[0008] The external electromagnetic induction coil adopts a partitioned external electromagnetic induction coil, and the partitioned external electromagnetic induction coil is divided into an A-zone external electromagnetic induction coil, a B-zone external electromagnetic induction coil and a C-zone external electromagnetic induction coil, and a coil isolation component is provided between the A-zone external electromagnetic induction coil, the B-zone external electromagnetic induction coil and the C-zone external electromagnetic induction coil;

[0009] The coil isolation component is a soft magnetic isolation component, which is a soft magnetic plate. The soft magnetic plate is made of silicon steel sheet, and the silicon steel sheet is sprayed with a soft magnetic coating. The soft magnetic coating is made of Fe-BM soft magnetic alloy, which is an amorphous nanocrystalline soft magnetic alloy, and its chemical composition expression is FexByPzCaCubMc. The soft magnetic isolation component is distributed in the interval area between the external electromagnetic induction coil of area A, the external electromagnetic induction coil of area B, and the external electromagnetic induction coil of area C;

[0010] Hydraulic oil is arranged in the activity space, and magnetic particles are filled in the hydraulic oil to form a magnetic fluid. The magnetic particles are round magnetic particles. The round magnetic particles are affected by the magnetic induction of an external electromagnetic induction coil. The external electromagnetic induction coil starts the power supply to generate a magnetic field. The magnetic field will affect the round magnetic particles to gather. When the round magnetic particles gather, the concentration of the hydraulic oil will be further increased, and the movement of the piston rod will become slow, thereby increasing the movement resistance of the piston rod. When the external electromagnetic induction coil is not energized, the round magnetic particles will disperse, thereby reducing the movement resistance of the piston rod.

[0011] The production steps include:

[0012] Step 1: Selection and preparation of metal parts. When selecting metal parts, you need to choose metal parts with strong corrosion resistance, and then use these metal parts to perform cutting production operations on lathes. After the cutting production operations on the lathe, the shock absorber cylinder and piston rod can be manufactured. During the lathe cutting production operations, it is necessary to ensure the smoothness of the outer surface of the shock absorber cylinder and piston rod to ensure the processing accuracy;

[0013] After the shock absorber cylinder and piston rod are produced, a preliminary assembly process is required. During the assembly, the operator assembles the shock absorber and the piston rod according to the drawings. During the assembly, the preliminary assembly can be performed according to the component sequence. After the preliminary assembly, an injection port for injecting magnetic fluid needs to be reserved;

[0014] Step 2: After the shock absorber is preliminarily assembled, the magnetic fluid can be prepared. The magnetic fluid contains micro-nano magnetic particles. The magnetic fluid is formed by mixing the micro-nano magnetic particles and the hydraulic oil. The magnetic fluid needs to be injected into the shock absorber. When the magnetic fluid is injected into the shock absorber, a vacuum filling machine needs to be used to fill the magnetic fluid.

[0015] When the magnetic fluid is filled as a whole through a vacuum filling machine, it is necessary to prepare the material of the magnetic fluid, pre-mix the micro-nano magnetic particles and the hydraulic oil, and stir them by means of a stirring device during the pre-mixing. After stirring, it is necessary to control the temperature of the secondary magnetic fluid, which is controlled at 20-30 degrees Celsius. The magnetic fluid formed by the pre-mixing and stirring is filtered, and the filtering operation is performed by means of a filter screen. After filtering, it is appropriately heated, and the heating temperature is maintained at 35-45 degrees Celsius.

[0016] At this time, the heated magnetic fluid is filled using a vacuum filling machine. During the filling, the shock absorber needs to be vacuumed. The shock absorber is vacuumed using a vacuum equipment, and then the magnetic fluid is filled. The magnetic fluid is filled into the shock absorber using a vacuum filling machine, and then a sealing component is provided on the shock absorber, which seals the magnetic fluid inside the shock absorber.

[0017] The third step is to install the external electromagnetic induction coil of the shock absorber. When installing the external electromagnetic induction coil, install it in different positions of the shock absorber. These positions can be divided into area A, area B and area C. The operator binds the external electromagnetic induction coil to area A, area B and area C. By connecting the circuit of the external electromagnetic induction coil, coil lead wires are reserved in the external electromagnetic induction coil. The coil lead wires and the energized components are spot welded and connected. Then, the energized components and wires are further connected. When fixing the external electromagnetic induction coil to the outside of the shock absorber, an expansion gap needs to be reserved. Finally, the external electromagnetic induction coils in areas A, B and C are subjected to high temperature resistance treatment. During the high temperature resistance treatment, epoxy resin is directly sprayed on the external electromagnetic induction coil, and a high temperature resistant protective layer is formed on the external electromagnetic induction coil using epoxy resin.

[0018] Magnetic fluid relies on magnetic particles to form a liquid with micron-sized magnetic particles suspended in it. In the absence of an external magnetic field, the viscosity of the magnetic fluid is equivalent to that of an ordinary liquid. When flowing, it can rely on the liquid with micron-sized magnetic particles to flow. When the external electromagnetic induction coil set outside the shock absorber is energized, the magnetic coil generates a magnetic field, and the magnetic particles are arranged in a chain or mesh structure along the direction of the magnetic field. The viscosity of the magnetic fluid is further increased. The magnetic fluid with increased viscosity will lead to an increase in the damping force, which is suitable for high damping conditions.

[0019] During adjustment, the strength of the magnetic field is controlled by the size of the current. At the same time, the magnetic field can be controlled by three external electromagnetic induction coils in different positions to meet the needs of releasing different magnetic fields. The external electromagnetic induction coil in area A can release the magnetic field in area A, the external electromagnetic induction coil in area B can release the magnetic field in area B, and the external electromagnetic induction coil in area C can release the magnetic field in area C.

[0020] Permanent magnetic auxiliary equipment is arranged on the inner side of the external electromagnetic induction coil of area A and the external electromagnetic induction coil of area B. The permanent magnetic auxiliary equipment adopts permanent magnets. The permanent magnets and the external electromagnetic induction coil of area A and the external electromagnetic induction coil of area B cooperate with each other to form a basic auxiliary magnetic field. The basic auxiliary magnetic field can extend the service life of the external electromagnetic induction coil of area A and the external electromagnetic induction coil of area B, so as to enable the shock absorber electromagnetic coil to operate with low energy consumption.

[0021] A soft magnetic isolation component is arranged between the external electromagnetic induction coil of area A, the external electromagnetic induction coil of area B and the external electromagnetic induction coil of area C. The soft magnetic isolation component is a soft magnetic plate. The soft magnetic plate is made of silicon steel sheet. The silicon steel sheet is sprayed with a soft magnetic coating. The soft magnetic coating is made of Fe-BM series soft magnetic alloy. The Fe-BM series soft magnetic alloy is an amorphous nanocrystalline soft magnetic alloy, and its chemical composition expression is FexByPzCaCubMc. The soft magnetic isolation component is used to further partition the electromagnetic field in different areas. The electromagnetic field in different areas can control magnetic fluids of different strengths, thereby meeting the needs of intelligent shock absorbers.

[0022] A current feedback device is provided between the energized component and the external electromagnetic induction coil. The current feedback device can monitor the current in real time. The current feedback device adopts a Hall sensor. When the current enters the battery induction coil through the coil lead wire, the Hall sensor feeds back the monitored current value to the pulse width modulation controller. The pulse width modulation controller adjusts the output current size according to the feedback current value to achieve precise control of the magnetic field strength.

[0023] Compared with the prior art, the present invention can rely on external electromagnetic induction lines to control the viscosity of the magnetic fluid when it is necessary to adjust the internal resistance of the shock absorber. Relying on the mutual cooperation of the magnetic particles and the electromagnetic induction coils in the magnetic fluid, the magnetic fluid mixed with hydraulic oil and magnetic particles can be coordinated and modulated for resistance. The intensity of the magnetic field is controlled by the magnitude of the current. At the same time, the magnetic field can be controlled by three external electromagnetic induction coils at different positions to meet the needs of releasing different magnetic fields. The external electromagnetic induction coil in area A can release the magnetic field in area A, the external electromagnetic induction coil in area B can release the magnetic field in area B, and the external electromagnetic induction coil in area C can release the magnetic field in area C.

[0024] In order to allow the external electromagnetic induction coil to divide the area for releasing the magnetic field, the external electromagnetic induction coil can be divided into different areas. Relying on the external electromagnetic induction coils in different areas, the flow resistance of the magnetic fluid can be controlled at different positions. Permanent magnetic auxiliary equipment is arranged on the inner side of the external electromagnetic induction coil in area A and the external electromagnetic induction coil in area B. The permanent magnetic auxiliary equipment adopts permanent magnets. The permanent magnets and the external electromagnetic induction coil in area A and the external electromagnetic induction coil in area B cooperate with each other to form a basic auxiliary magnetic field. The basic auxiliary magnetic field can extend the service life of the external electromagnetic induction coil in area A and the external electromagnetic induction coil in area B, so as to achieve low energy consumption operation of the shock absorber electromagnetic coil.

[0025] The soft magnetic isolation components arranged between the external electromagnetic induction coil of area A, the external electromagnetic induction coil of area B and the external electromagnetic induction coil of area C are used to further divide the electromagnetic fields of different areas. The electromagnetic fields of different areas can be used to control magnetic fluids of different strengths, meeting the needs of the intelligent shock absorber. The soft magnetic isolation components can be used to initially isolate and divide the magnetic fields between electromagnetic areas, and the magnetic fields of different areas will not be affected by each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the present invention;

[0029] Figure 4 It is a schematic diagram of the structure of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the present invention;

[0031] In the figure: 1 is a shock absorber, 2 is a piston rod, 3 is an assembly hole, 4 is a front support plate, 5 is a rear support plate, 6 is a protection rod, 7 is an external electromagnetic induction coil, 8 is a soft magnetic isolation component, 9 is a permanent magnetic auxiliary device, 10 is a coil lead wire, 11 is a current control module, 12 is a current feedback device, 13 is an adjustment gear, 14 is a transmission rack, 15 is a push bracket, and 16 is a limit plate. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0033] An anti-drift shock absorber is provided with a shock absorber 1, an activity space is provided in the shock absorber 1, a piston rod 2 is provided in the activity space, an assembly component is provided on the piston rod 2, the assembly component is an assembly hole 3, a front support plate 4 and a rear support plate 5 are provided on the piston rod 2, a protection component is provided between the front support plate 4 and the rear support plate 5, a card slot is provided on the front support plate 4 and the rear support plate 5, the protection component passes through the card slot, the protection component is a protection rod 6, and an electric field induction component is provided on the outer side of the protection rod;

[0034] The electric field induction component is an induction coil, the induction coil is an electromagnetic induction coil, the electromagnetic induction coil is an external electromagnetic induction coil 7, the external electromagnetic induction coil 7 is distributed outside the shock absorber, and a power-carrying component is arranged outside the electromagnetic induction coil, and the power-carrying component and the electromagnetic induction coil are connected to each other;

[0035] The external electromagnetic induction coil 7 adopts a partitioned external electromagnetic induction coil, which is divided into an A-zone external electromagnetic induction coil, a B-zone external electromagnetic induction coil and a C-zone external electromagnetic induction coil, and a coil isolation component is provided between the A-zone external electromagnetic induction coil, the B-zone external electromagnetic induction coil and the C-zone external electromagnetic induction coil;

[0036] An internal gap adjustment component is arranged between the external electromagnetic induction coil 7. When maintenance is not required, only the limit plate 16 needs to be installed on one side of the external electromagnetic induction coil 7. When gap adjustment is required, only the limit plate 16 needs to be removed. A limit plate is arranged on one side of the external electromagnetic induction coil 7. The internal gap adjustment component is an adjustment gear 13. A transmission rack 14 is arranged on the outer wall of the shock absorber. The transmission rack 14 and the adjustment gear 13 are meshed with each other. A pushing bracket 15 and a top plate are arranged on the adjustment gear 13. The top plate and the external electromagnetic induction coil 7 are assembled with each other. The top plate and the pushing bracket 15 cooperate with each other to give the adjustment gear 13 and the transmission rack a gap for operation. An assist bracket is arranged on the pushing bracket 15. When the position of the external electromagnetic induction coil 7 needs to be adjusted, the transmission rack 14 and the adjustment gear 13 can be used to cooperate with each other. The operator holds the assist bracket to adjust the position of the external electromagnetic induction coil 7, so that the position adjustment of the external electromagnetic induction coil 7 is more convenient, and the external electromagnetic induction coil 7 can be conveniently inspected.

[0037] The coil isolation component is a soft magnetic isolation component 8, and the soft magnetic isolation component 8 is distributed in the interval area between the external electromagnetic induction coil of area A, the external electromagnetic induction coil of area B and the external electromagnetic induction coil of area C;

[0038] Hydraulic oil is arranged in the activity space, and magnetic particles are filled in the hydraulic oil to form a magnetic fluid. The magnetic particles are round magnetic particles. The round magnetic particles are affected by the magnetic induction of an external electromagnetic induction coil. The external electromagnetic induction coil starts the power supply to generate a magnetic field. The magnetic field will affect the round magnetic particles to gather. When the round magnetic particles gather, the concentration of the hydraulic oil will be further increased, and the movement of the piston rod will become slow, thereby increasing the movement resistance of the piston rod. When the external electromagnetic induction coil is not energized, the round magnetic particles will disperse, thereby reducing the movement resistance of the piston rod.

[0039] The production steps include:

[0040] Step 1: Selection and preparation of metal parts. When selecting metal parts, you need to choose metal parts with strong corrosion resistance, and then use these metal parts to perform cutting production operations on lathes. After the cutting production operations on the lathe, the shock absorber cylinder and piston rod can be manufactured. During the lathe cutting production operations, it is necessary to ensure the smoothness of the outer surface of the shock absorber cylinder and piston rod to ensure the processing accuracy;

[0041] After the shock absorber cylinder and piston rod are produced, a preliminary assembly process is required. During the assembly, the operator assembles the shock absorber and the piston rod according to the drawings. During the assembly, the preliminary assembly can be performed according to the component sequence. After the preliminary assembly, an injection port for injecting magnetic fluid needs to be reserved;

[0042] Step 2: After the shock absorber is preliminarily assembled, the magnetic fluid can be prepared. The magnetic fluid contains micro-nano magnetic particles. The magnetic fluid is formed by mixing the micro-nano magnetic particles and the hydraulic oil. The magnetic fluid needs to be injected into the shock absorber. When the magnetic fluid is injected into the shock absorber, a vacuum filling machine needs to be used to fill the magnetic fluid.

[0043] When the magnetic fluid is filled as a whole through a vacuum filling machine, it is necessary to prepare the material of the magnetic fluid, pre-mix the micro-nano magnetic particles and the hydraulic oil, and stir them by means of a stirring device during the pre-mixing. After stirring, it is necessary to control the temperature of the secondary magnetic fluid, which is controlled at 20-30 degrees Celsius. The magnetic fluid formed by the pre-mixing and stirring is filtered, and the filtering operation is performed by means of a filter screen. After filtering, it is appropriately heated, and the heating temperature is maintained at 35-45 degrees Celsius.

[0044] At this time, the heated magnetic fluid is filled using a vacuum filling machine. During the filling, the shock absorber needs to be vacuumed. The shock absorber is vacuumed using a vacuum equipment, and then the magnetic fluid is filled. The magnetic fluid is filled into the shock absorber using a vacuum filling machine, and then a sealing component is provided on the shock absorber, which seals the magnetic fluid inside the shock absorber.

[0045] The third step is to install the external electromagnetic induction coil of the shock absorber. When installing the external electromagnetic induction coil, install the external electromagnetic induction coil in different positions of the shock absorber, which can be divided into area A, area B and area C. The operator binds the external electromagnetic induction coil to area A, area B and area C. By connecting the circuit of the external electromagnetic induction coil, a coil lead wire 10 is reserved in the external electromagnetic induction coil. The coil lead wire 10 is spot-welded to the energized component, and then further connected with the energized component and the wire. When fixing the external electromagnetic induction coil to the outside of the shock absorber, an expansion gap needs to be reserved. Finally, the external electromagnetic induction coils in areas A, B and C are subjected to high temperature resistance treatment. During the high temperature resistance treatment, epoxy resin is directly sprayed on the external electromagnetic induction coil, and a high temperature resistant protective layer is formed on the external electromagnetic induction coil using epoxy resin.

[0046] Magnetic fluid relies on magnetic particles to form a liquid with micron-sized magnetic particles suspended in it. In the absence of an external magnetic field, the viscosity of the magnetic fluid is equivalent to that of an ordinary liquid. When flowing, it can rely on the liquid with micron-sized magnetic particles to flow. When the external electromagnetic induction coil set outside the shock absorber is energized, the magnetic coil generates a magnetic field, and the magnetic particles are arranged in a chain or mesh structure along the direction of the magnetic field. The viscosity of the magnetic fluid is further increased. The magnetic fluid with increased viscosity will lead to an increase in the damping force, which is suitable for high damping conditions.

[0047] During adjustment, the strength of the magnetic field is controlled by the size of the current. At the same time, the magnetic field can be controlled by three external electromagnetic induction coils in different positions to meet the needs of releasing different magnetic fields. The external electromagnetic induction coil in area A can release the magnetic field in area A, the external electromagnetic induction coil in area B can release the magnetic field in area B, and the external electromagnetic induction coil in area C can release the magnetic field in area C.

[0048] A permanent magnet auxiliary device 9 is arranged on the inner side of the external electromagnetic induction coil of area A and the external electromagnetic induction coil of area B. The permanent magnet auxiliary device 9 adopts a permanent magnet. The permanent magnet and the external electromagnetic induction coil of area A and the external electromagnetic induction coil of area B cooperate with each other to form a basic auxiliary magnetic field. The basic auxiliary magnetic field can extend the life of the external electromagnetic induction coil of area A and the external electromagnetic induction coil of area B, so as to enable the shock absorber electromagnetic coil to operate with low energy consumption.

[0049] A soft magnetic isolation component is arranged between the external electromagnetic induction coil in area A, the external electromagnetic induction coil in area B and the external electromagnetic induction coil in area C. The electromagnetic fields in different areas are further divided into different zones. The electromagnetic fields in different areas can be used to control magnetic fluids of different strengths, thus meeting the needs of intelligent shock absorbers.

[0050] When it is necessary to adjust the internal resistance of the shock absorber, the viscosity of the magnetic fluid can be controlled by relying on external electromagnetic induction lines. The cooperation between the magnetic particles in the magnetic fluid and the electromagnetic induction coil can make the magnetic fluid mixed with hydraulic oil and magnetic particles coordinate and modulate the resistance. The intensity of the magnetic field is controlled by the size of the current. At the same time, the magnetic field can be controlled by three external electromagnetic induction coils in different positions to meet the needs of releasing different magnetic fields. The external electromagnetic induction coil in area A can release the magnetic field in area A, the external electromagnetic induction coil in area B can release the magnetic field in area B, and the external electromagnetic induction coil in area C can release the magnetic field in area C.

[0051] A current feedback device 12 is provided between the energized component and the external electromagnetic induction coil 7. The current feedback device can monitor the current in real time. The current feedback device uses a Hall sensor. When the current enters the battery induction coil through the lead wire of the coil 7, the Hall sensor feeds back the monitored current value to the pulse width modulation controller. The pulse width modulation controller adjusts the output current size according to the feedback current value to achieve precise control of the magnetic field strength.

[0052] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An anti-drift shock absorber, provided with a shock absorber, an activity space is provided in the shock absorber, a piston rod is provided in the activity space, an assembly component is provided on the piston rod, the assembly component is an assembly hole, a front support plate and a rear support plate are provided on the piston rod, a protection component is provided between the front support plate and the rear support plate, a card slot is provided on the front support plate and the rear support plate, the protection component passes through the card slot, and the protection component is a protection rod, characterized in that: An electric field induction component is arranged on the outer side of the protection rod; The electric field induction component is an induction coil, the induction coil is an electromagnetic induction coil, the electromagnetic induction coil is an external electromagnetic induction coil, the external electromagnetic induction coil is distributed outside the shock absorber, an energized component is arranged outside the electromagnetic induction coil, and the energized component and the electromagnetic induction coil are connected to each other; The external electromagnetic induction coil adopts a partitioned external electromagnetic induction coil, and the partitioned external electromagnetic induction coil is divided into an A-zone external electromagnetic induction coil, a B-zone external electromagnetic induction coil and a C-zone external electromagnetic induction coil, and a coil isolation component is provided between the A-zone external electromagnetic induction coil, the B-zone external electromagnetic induction coil and the C-zone external electromagnetic induction coil; The coil isolation component is a soft magnetic isolation component, and the soft magnetic isolation component is distributed in the interval area between the external electromagnetic induction coil of area A, the external electromagnetic induction coil of area B and the external electromagnetic induction coil of area C; Hydraulic oil is arranged in the activity space, and magnetic particles are filled in the hydraulic oil to form a magnetic fluid. The magnetic particles are round magnetic particles. The round magnetic particles are affected by the magnetic induction of an external electromagnetic induction coil. The external electromagnetic induction coil starts the power supply to generate a magnetic field. The magnetic field will affect the round magnetic particles to gather. When the round magnetic particles gather, the concentration of the hydraulic oil will be further increased, and the movement of the piston rod will become slow, thereby increasing the movement resistance of the piston rod. When the external electromagnetic induction coil is not energized, the round magnetic particles will disperse, thereby reducing the movement resistance of the piston rod.

2. The anti-drift shock absorber and the processing method thereof according to claim 1, characterized in that: The production steps include: Step 1: Selection and preparation of metal parts. When selecting metal parts, you need to choose metal parts with strong corrosion resistance, and then use these metal parts to perform cutting production operations on lathes. After the cutting production operations on the lathe, the shock absorber cylinder and piston rod can be manufactured. During the lathe cutting production operations, it is necessary to ensure the smoothness of the outer surface of the shock absorber cylinder and piston rod to ensure the processing accuracy; After the shock absorber cylinder and piston rod are produced, a preliminary assembly process is required. During the assembly, the operator assembles the shock absorber and the piston rod according to the drawings. During the assembly, the preliminary assembly can be performed according to the component sequence. After the preliminary assembly, an injection port for injecting magnetic fluid needs to be reserved; Step 2: After the shock absorber is preliminarily assembled, the magnetic fluid can be prepared. The magnetic fluid contains micro-nano magnetic particles. The magnetic fluid is formed by mixing the micro-nano magnetic particles and the hydraulic oil. The magnetic fluid needs to be injected into the shock absorber. When the magnetic fluid is injected into the shock absorber, a vacuum filling machine needs to be used to fill the magnetic fluid. When the magnetic fluid is filled as a whole through a vacuum filling machine, it is necessary to prepare the material of the magnetic fluid, pre-mix the micro-nano magnetic particles and the hydraulic oil, and stir them by means of a stirring device during the pre-mixing. After stirring, it is necessary to control the temperature of the secondary magnetic fluid, which is controlled at 20-30 degrees Celsius. The magnetic fluid formed by the pre-mixing and stirring is filtered, and the filtering operation is performed by means of a filter screen. After filtering, it is appropriately heated, and the heating temperature is maintained at 35-45 degrees Celsius. At this time, the heated magnetic fluid is filled using a vacuum filling machine. During the filling, the shock absorber needs to be vacuumed. The shock absorber is vacuumed using a vacuum equipment, and then the magnetic fluid is filled. The magnetic fluid is filled into the shock absorber using a vacuum filling machine, and then a sealing component is provided on the shock absorber, which seals the magnetic fluid inside the shock absorber. The third step is to install the external electromagnetic induction coil of the shock absorber. When installing the external electromagnetic induction coil, install it in different positions of the shock absorber, which can be divided into area A, area B and area C. The operator binds the external electromagnetic induction coil to area A, area B and area C. By connecting the circuit of the external electromagnetic induction coil, coil lead wires are reserved in the external electromagnetic induction coil. The coil lead wires and the energized components are spot welded and connected, and then the energized components and wires are further connected. When fixing the external electromagnetic induction coil to the outside of the shock absorber, an expansion gap needs to be reserved. Finally, the external electromagnetic induction coils in areas A, B and C are subjected to high temperature resistance treatment. During the high temperature resistance treatment, epoxy resin is directly sprayed on the external electromagnetic induction coil to form a high temperature resistant protective layer on the external electromagnetic induction coil using epoxy resin.

3. The anti-drift shock absorber and the processing method thereof according to claim 2, characterized in that: Magnetic fluid relies on magnetic particles to form a liquid with micron-sized magnetic particles suspended in it. In the absence of an external magnetic field, the viscosity of the magnetic fluid is equivalent to that of an ordinary liquid. When flowing, it can rely on the liquid with micron-sized magnetic particles to flow. When the external electromagnetic induction coil set outside the shock absorber is energized, the magnetic coil generates a magnetic field, and the magnetic particles are arranged in a chain or mesh structure along the direction of the magnetic field. The viscosity of the magnetic fluid is further increased. The magnetic fluid with increased viscosity will lead to an increase in the damping force, which is suitable for high damping conditions. During adjustment, the strength of the magnetic field is controlled by the size of the current. At the same time, the magnetic field can be controlled by three external electromagnetic induction coils in different positions to meet the needs of releasing different magnetic fields. The external electromagnetic induction coil in area A can release the magnetic field in area A, the external electromagnetic induction coil in area B can release the magnetic field in area B, and the external electromagnetic induction coil in area C can release the magnetic field in area C.

4. The intelligent control method of an anti-drift shock absorber according to claim 3, characterized in that: Permanent magnetic auxiliary equipment is arranged on the inner side of the external electromagnetic induction coil of area A and the external electromagnetic induction coil of area B. The permanent magnetic auxiliary equipment adopts permanent magnets. The permanent magnets and the external electromagnetic induction coil of area A and the external electromagnetic induction coil of area B cooperate with each other to form a basic auxiliary magnetic field. The basic auxiliary magnetic field can extend the service life of the external electromagnetic induction coil of area A and the external electromagnetic induction coil of area B, so as to enable the shock absorber electromagnetic coil to operate with low energy consumption.

5. The intelligent control method of an anti-drift shock absorber according to claim 3, characterized in that: A soft magnetic isolation component is arranged between the external electromagnetic induction coil of area A, the external electromagnetic induction coil of area B and the external electromagnetic induction coil of area C. The soft magnetic isolation component is a soft magnetic plate. The soft magnetic plate is made of silicon steel sheet. The silicon steel sheet is sprayed with a soft magnetic coating. The soft magnetic coating is made of Fe-BM series soft magnetic alloy. The Fe-BM series soft magnetic alloy is an amorphous nanocrystalline soft magnetic alloy. The soft magnetic isolation component is used to further divide the electromagnetic field of different areas. The electromagnetic field of different areas can control magnetic fluids of different strengths, thereby meeting the needs of intelligent shock absorbers.

6. The intelligent control method of an anti-drift shock absorber according to claim 5, characterized in that: A current feedback device is provided between the energized component and the external electromagnetic induction coil. The current feedback device can monitor the magnitude of the current in real time. The current feedback device adopts a Hall sensor. When the current enters the battery induction coil through the coil lead wire, a transverse voltage signal proportional to the current will be generated under the action of a magnetic field perpendicular to the current direction. The Hall sensor feeds back the monitored current value to the pulse width modulation controller. The pulse width modulation controller adjusts the output current size according to the feedback current value to achieve precise control of the magnetic field strength.

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