CN215968276U - Electromagnetic shot blasting device - Google Patents
Electromagnetic shot blasting device Download PDFInfo
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- CN215968276U CN215968276U CN202121757295.9U CN202121757295U CN215968276U CN 215968276 U CN215968276 U CN 215968276U CN 202121757295 U CN202121757295 U CN 202121757295U CN 215968276 U CN215968276 U CN 215968276U
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Abstract
The utility model discloses an electromagnetic shot blasting device, and belongs to the technical field of material surface spraying processing. The spraying chamber is connected with an external inert gas source, and the material to be shot-blasted is blown into the accelerating pipeline under the action of the inert gas; the electromagnetic coils are provided with a plurality of groups, the groups of the electromagnetic coils are uniformly wound on the outer side wall of the accelerating pipeline in groups, the number of winding turns of each group of the electromagnetic coils is different, the number of turns of each group of the electromagnetic coils is sequentially increased from the inlet end to the outlet end of the accelerating pipeline, and a plurality of magnetic field regions are formed inside the accelerating pipeline. The device has the advantages that the particles of the shot blasting materials move in the magnetic field to generate induced current, the induced current is subjected to Lorentz force in the magnetic field, the flowing speed of the particles of the shot blasting materials in an accelerating pipeline is increased, the particles of the shot blasting materials are driven to be sprayed out at a high speed, the waste of the shot blasting materials and environmental pollution are avoided, the bonding strength of the shot blasting materials and a substrate is effectively improved, the device is simple in structure, and the cost is low.
Description
Technical Field
The utility model belongs to the technical field of material surface spraying and processing, and relates to an electromagnetic shot blasting device.
Background
Shot peening is a surface strengthening process widely used in factories, and surface engineering is systematic engineering in which after the surface of a material is pretreated, the morphology, chemical composition, tissue structure and stress condition of a metal surface or a non-metal surface are changed by surface coating, surface modification or composite treatment of multiple surface technologies, so as to obtain the required performance of the surface. The surface shot peening technology is the most common surface engineering technology at present, and is characterized in that certain special properties which are not possessed by a body material can be obtained without changing the overall material of the material, the process cost is low, and the thickness of a surface covering layer obtained by the surface shot peening technology is generally dozens of microns to several millimeters. Therefore, the material surface shot blasting technology is widely applied to the fields of aviation, aerospace, automobiles, sports life, mechanical manufacturing and the like.
Although the existing shot blasting technology has high efficiency, the defects are obvious; for example, the hot shot spraying process needs higher temperature, gas and other harmful substances generated in the high-temperature process are not beneficial to the health of people, the production environment is severe, and the production emission is not beneficial to the national environmental protection policy; the cold shot blasting process generally requires pretreatment of the material surface, requires acceleration of the coating particles to a higher velocity, and generally employs a high velocity gas stream to achieve good bonding of the coating to the material surface. The spray coating technology or the cold spray coating technology needs to accelerate the coating particles to a higher speed, the spray coating speed of the current common shot blasting technology is lower, the coating waste, the insufficient bonding strength, the environmental pollution and the like are easily caused, the spray coating speed of the particles can be higher by the supersonic spray coating technology, the problems can be effectively solved, but the supersonic spray coating cost is higher, and the equipment is complex.
In conclusion, the currently commonly used surface shot blasting equipment is large in size, complex in structure, not suitable for single-person operation, mainly suitable for large-scale factory production, single in function and difficult in spraying speed adjustment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects that the shot blasting equipment is large in size, complex in structure and not suitable for single-person operation in the prior art, and provides an electromagnetic shot blasting device.
In order to achieve the purpose, the utility model adopts the following technical scheme to realize the purpose:
an electromagnetic shot blasting device comprises an electromagnetic coil, a rectangular bracket, a spray head, an accelerating pipeline, a coil controller and a material storage chamber;
the storage chamber is provided with a feeding port and a discharge port, the storage chamber is also provided with an air inlet, the air inlet of the storage chamber is connected with an external inert gas source, the discharge port of the storage chamber is connected with the inlet end of an accelerating pipeline, and the outlet end of the accelerating pipeline is connected with a spray head;
the two rectangular supports are respectively arranged at two sides of the accelerating pipeline, one end of each rectangular support is fixed on the side wall of the material storage chamber, the other end of each rectangular support is fixed on the outer side wall of the accelerating pipeline through a connecting rod, and the coil controller is arranged on the rectangular supports;
the electromagnetic coils are provided with a plurality of groups, the groups of the electromagnetic coils are uniformly wound on the outer side wall of the accelerating pipeline in groups, the number of winding turns of each group of the electromagnetic coils is different, the number of turns of each group of the electromagnetic coils is sequentially increased from the inlet end to the outlet end of the accelerating pipeline, a plurality of magnetic field regions are formed in the accelerating pipeline, and the groups of the electromagnetic coils are electrically connected with the coil controller respectively.
Preferably, the device further comprises a dispersion plate, wherein the dispersion plate is arranged between the storage chamber and the acceleration pipeline; a plurality of flow dispersing holes are uniformly arranged on the flow dispersing disc.
Preferably, the electromagnetic coils are provided with three groups, and a first-stage coil, a second-stage coil and a third-stage coil are sequentially arranged from the inlet end to the outlet end of the accelerating pipeline;
the number of turns of the first-stage coil is 200-400, the number of turns of the second-stage coil is 400-650, and the number of turns of the third-stage coil is 650-1000.
Preferably, the controller is arranged outside the device and is electrically connected with the coil controller.
Preferably, the air inlet of the material storage chamber is provided with an electromagnetic valve, and the electromagnetic valve is electrically connected with the controller.
Preferably, the shape of the nozzle orifice of the spray head is a rectangular structure.
Preferably, the storage tank is installed at the top of the storage chamber, the feeding port and the discharge port are formed in the storage tank, and the discharge port of the storage tank is connected with the feed port of the storage chamber.
Preferably, a manual valve is installed at the feed inlet of the storage tank;
the material storage tank is made of alkali-free high-temperature-resistant glass fiber.
Preferably, the outer side wall of the accelerating pipeline is further sleeved with an annular support, and the annular support is fixed on the rectangular support.
Preferably, the accelerating pipeline is made of silicon steel.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides an electromagnetic shot blasting device, wherein a spraying chamber is connected with an external inert gas source, and a material to be shot blasted is blown into an accelerating pipeline under the action of inert gas; the electromagnetic coils are provided with a plurality of groups, the groups of the electromagnetic coils are uniformly wound on the outer side wall of the accelerating pipeline in groups, the number of winding turns of each group of the electromagnetic coils is different, the number of turns of each group of the electromagnetic coils is sequentially increased from the inlet end to the outlet end of the accelerating pipeline, a plurality of magnetic field regions are formed in the accelerating pipeline, and the groups of the electromagnetic coils are electrically connected with the coil controller respectively. A magnetic field environment is formed in the accelerating pipeline by utilizing a plurality of groups of electromagnetic coils, so that the particles of the shot blasting materials flow from the inlet end to the outlet end of the accelerating pipeline in an accelerating way under the action of a magnetic field and are sprayed out through a spray head; the device has the advantages that the particles of the shot blasting materials move in the magnetic field to generate induced current, the induced current is subjected to Lorentz force in the magnetic field, the flowing speed of the particles of the shot blasting materials in an accelerating pipeline is increased, the particles of the shot blasting materials are driven to be sprayed out at a high speed, the waste of the shot blasting materials and environmental pollution are avoided, the bonding strength of the shot blasting materials and a substrate is effectively improved, the device is simple in structure, and the cost is low.
Further, through set up the scattered flow dish between storage compartment and pipeline with higher speed, set up the scattered flow hole on the scattered flow dish, under inert gas flow's effect, can be with treating peening material homodisperse for peening material granule to in the pipeline with higher speed is advanced with the entering of preset initial velocity, ensured peening material granule with higher speed and the homogeneity of peening.
Furthermore, three groups of electromagnetic coils are arranged, the number of coaxial turns of adjacent electromagnetic coils and the number of coaxial turns of the accelerating pipeline are different, the number of turns is sequentially increased, namely when the same current is conducted, the magnetic field intensity is sequentially increased, and the Lorentz force borne by the shot blasting material particles is exponentially increased.
Furthermore, the nozzle is arranged at the outlet end of the accelerating pipeline and is used as an outlet of the high-speed shot blasting material, the shape of the nozzle is rectangular, the sprayed shot blasting material is in a planar shape, the shot blasting area can be effectively increased, and the shot blasting efficiency is improved.
Furthermore, a controller which plays a main control role is arranged outside the device, the controller is respectively connected with each stage of electromagnetic coil through a coil controller, and the controller controls the current of the coil controller for electrifying each stage of electromagnetic coil so as to control the size of the magnetic field generated by each group of electromagnetic coil.
Further, through setting up the solenoid valve in the air inlet department of storage chamber, utilize the steerable inert gas of solenoid valve to get into the velocity of flow of storage chamber, through controller control, realize the periodic acceleration of peening material granule with coil controller cooperation synergism.
Furthermore, the material storage tank is made of high-temperature resistant materials and is provided with a filling port and a manual valve; the manual valve is opened when injecting materials, closed after injecting materials, and the shot blasting materials enter the material storage chamber under the action of air pressure; meanwhile, the reliability of the device and the smoothness of the flowing of the liquid shot blasting material are ensured when the shot blasting material is high-temperature molten metal.
Furthermore, the accelerating pipeline is made of silicon steel, and the silicon steel can better shield the magnetic field in the pipeline and reduce the loss of the magnetic field.
Furthermore, an annular support is further sleeved on the outer side wall of the accelerating pipeline and fixed on the rectangular support, and the annular support is used for fixing the coil controller and the protection coil.
Drawings
FIG. 1 is a schematic view of the overall structure of an electromagnetic peening apparatus according to an embodiment;
FIG. 2 is a schematic structural view of an electromagnetic peening apparatus according to an embodiment;
FIG. 3 is a schematic view of an electromagnetic coil structure in the electromagnetic peening apparatus according to the embodiment;
FIG. 4 is a schematic perspective view of a nozzle in the electromagnetic peening apparatus according to an embodiment;
FIG. 5 is a side view of a shower head in the electromagnetic peening apparatus according to the embodiment;
FIG. 6 is a schematic view of a structure of a scattering disk in the electromagnetic peening apparatus according to the embodiment;
FIG. 7 is an electrical block diagram of an electromagnetic peening apparatus according to an embodiment;
FIG. 8 is a schematic view showing the operation of the electromagnetic peening apparatus according to the embodiment.
Wherein: 1-an electromagnetic valve, 2-a material storage tank, 3-a first-stage electromagnetic coil, 4-a second-stage electromagnetic coil, 5-a third-stage electromagnetic coil, 6-a rectangular support, 7-a spray head, 8-an accelerating pipeline, 9-a coil controller, 10-an annular support, 11-a power line, 12-a controller, 13-a flow dispersing disc, 14-a material storage chamber, 15-a switch, 16-a handle, 17-an inert gas tank and 18-an air inlet hose; 301-the positive pole of the first-stage accelerating coil, 302-the first-stage accelerating coil, 303-the negative pole of the first-stage accelerating coil; 401-positive pole of the second-stage accelerating coil, 402-negative pole of the second-stage accelerating coil, 403-negative pole of the second-stage accelerating coil; 501-positive pole of second-stage accelerating coil, 502-negative pole of second-stage accelerating coil, 503-negative pole of second-stage accelerating coil.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The utility model is described in further detail below with reference to the accompanying drawings:
example 1
Referring to fig. 1 and 2, the electromagnetic shot blasting machine comprises an electromagnetic coil, a rectangular bracket 6, a spray head 7, an accelerating pipeline 8, a coil controller 9 and a storage chamber 14;
the material storage chamber 14 is provided with a feeding port and a discharging port, the material storage chamber 14 is also provided with an air inlet, the air inlet of the material storage chamber 14 is connected with an external inert gas source, the discharging port of the material storage chamber 14 is connected with the inlet end of the accelerating pipeline 8, and the outlet end of the accelerating pipeline 8 is connected with the spray head 7;
two rectangular supports 6 are respectively arranged at two sides of the accelerating pipeline 8, one end of each rectangular support 6 is fixed on the side wall of the material storage chamber 14, the other end of each rectangular support 6 is fixed on the outer side wall of the accelerating pipeline 8 through a connecting rod, and the coil controller 9 is arranged on the rectangular supports 6;
as shown in fig. 3, three groups of electromagnetic coils are arranged, the three groups of electromagnetic coils are uniformly wound on the outer side wall of the acceleration pipe 8 in groups, the number of winding turns of each group of electromagnetic coils is different, a first-stage coil 302, a second-stage coil 402 and a third-stage coil 502 are sequentially arranged from the inlet end to the outlet end of the acceleration pipe 8, the number of turns of the first-stage coil 302 is 200, the number of turns of the second-stage coil 402 is 400, the number of turns of the third-stage coil 502 is 650, a plurality of magnetic field regions are formed inside the acceleration pipe 8, and the plurality of groups of electromagnetic coils are electrically connected with the coil controller 9 respectively.
Example 2
The contents are the same as those of example 1 except for the following.
The storage tank 2 is installed at the top of the storage chamber 14, the feeding port and the discharging port are formed in the storage tank 2, and the discharging port of the storage tank 2 is connected with the feeding port of the storage chamber 14. A manual valve is arranged at the feed inlet of the storage tank 2. As shown in fig. 6, a scattering disk 13 is further provided, and the scattering disk 13 is arranged between the material storage chamber 14 and the accelerating pipeline 8; a plurality of flow dispersing holes are uniformly arranged on the flow dispersing disc 13. An electromagnetic valve 1 is arranged at the air inlet of the material storage chamber 14, and the electromagnetic valve 1 is electrically connected with the controller 12.
Example 3
The contents are the same as those of example 1 except for the following.
The outer side wall of the accelerating pipeline 8 is further sleeved with an annular support 10, and the annular support 10 is fixed on the rectangular support 6. The device is also provided with a controller 12 outside, the controller 12 is connected with an external power supply through a power line 11, and the controller 12 is electrically connected with the coil controller 9. As shown in fig. 4 and 5, the shape of the nozzle opening of the nozzle head 7 is a rectangular structure.
Example 4
An electromagnetic shot blasting device comprises an electromagnetic valve 1, a material storage tank 2, a first-stage electromagnetic coil 3, a second-stage electromagnetic coil 4, a third-stage electromagnetic coil 5, a rectangular support 6, a spray head 7, an accelerating pipeline 8, a coil controller 9, an annular support 10, a power line 11, a controller 12, a flow dispersing disc 13, a material storage chamber 14, a switch 15, a handle 16, an inert gas tank 17 and an air inlet hose 18.
The electromagnetic valve 1 and the coil controller 9 are respectively connected to the controller 12 in a communication mode, and the first-stage electromagnetic coil 3, the second-stage electromagnetic coil 4 and the third-stage electromagnetic coil 5 are respectively connected to the coil controller 9 in a communication mode; the inert gas tank 17 is used for storing inert gas, and the inert gas tank 17 is connected with the gas inlet of the storage chamber 17 through a gas inlet hose 18; the electromagnetic valve 1 is arranged at an air inlet of the material storage chamber 14, the electromagnetic valve 1 is connected with the controller 12 through a data line, and the controller 12 is used for controlling the opening degree of the electromagnetic valve 1; the top of the storage chamber 14 is provided with a feed inlet, and the storage tank 2 is arranged above the storage chamber 14; the storage tank 2 is used for storing the coating to be sprayed, a discharge hole is formed in the bottom of the storage tank 2, the discharge hole of the storage tank 2 is connected with a feed inlet of the storage chamber 14, and the storage chamber 14 is a part for blowing the shot blasting materials by inert gas flow.
The material storage tank 2 is made of high-temperature-resistant materials, the upper end of the material storage tank 2 is provided with a material injection port, and a manual valve is installed at the material injection port and has a good sealing effect; the manual valve is opened when the material is injected, and closed after the material is injected, and the shot blasting material enters the material storage chamber 14 under the air pressure action of inert gas; the material storage tank 2 is a constant temperature tank, so that the reliability of the device and the flowing smoothness of shot blasting materials are ensured when the shot blasting materials are high-temperature molten metal.
The material storage chamber 14 is provided with a material spraying port, and the material spraying port is arranged opposite to the air inlet; the material spraying port is connected with the inlet end of the accelerating pipeline 8, and the outlet end of the accelerating pipeline 8 is connected with the spray head 7; the first-stage electromagnetic coil 3, the second-stage electromagnetic coil 4 and the third-stage electromagnetic coil 5 are all arranged on the outer side of the acceleration pipeline 8 and are sequentially arranged along the axis of the acceleration pipeline 8, and the first-stage electromagnetic coil 3, the second-stage electromagnetic coil 4 and the third-stage electromagnetic coil 5 are respectively used for forming a magnetic field environment in the acceleration pipeline 8.
A plurality of annular supports 10 are uniformly arranged on the outer side of the accelerating pipeline 8, the main control center 6 is fixedly arranged above the accelerating pipeline 8 through the annular supports 10, and the coil controller 9 is fixedly arranged below the accelerating pipeline 8 through the annular supports 10; the main control center 6 is a control center of the whole spraying device, the main control center 6 is connected with a power supply through a power line 11, the power supply is used for supplying power, the power supply adopts a 220V household power grid for supplying power, and the spraying device has good operability and convenience. In this embodiment, the controller 12 is the brain of the whole spraying device, is connected to a household power grid through a power line 11 to supply power to the main control center 6, mainly controls the opening of the electromagnetic valve 1, and controls the energizing sequence of the first-stage electromagnetic coil 3, the second-stage electromagnetic coil 4 and the third-stage electromagnetic coil 5 through the control coil controller 9.
The handle 16 is arranged below the storage chamber 14, and the switch 15 is positioned above the handle 15; the switch 15 is in communication connection with the controller 12, the switch 15 is broken by the fingers of an operator to send switch control information to the controller 12, and the controller 12 sends instructions to the electromagnetic valve 1 and the coil controller 9 respectively after receiving the switch control signal to control the opening of the electromagnetic valve 1 and the electrifying sequence of the electromagnetic coil, so that the periodic three-stage acceleration of the coating particles is realized; preferably, solenoid valve 1 controls the flow rate of inert gas through inlet hose 18 into accumulator chamber 14, and is mounted at the inlet of accumulator chamber 14.
The spray head 7 is arranged at the outlet end of the accelerating pipeline 8, the nozzle of the spray head 7 is in a rectangular structure, so that the shot blasting particles ejected at high speed are in a planar shape, the shot blasting area can be effectively increased, and the shot blasting efficiency is improved; the nozzle 7 serves as an outlet for the high-speed shot-blasting material and is made of a wear-resistant material.
The flow dispersing disc 13 is arranged between the material storage chamber 14 and the accelerating pipeline 8, a plurality of flow dispersing holes are uniformly arranged on the flow dispersing disc 13, and shot blasting materials are blown by inert gas flow and then become shot blasting particles through the flow dispersing holes and enter an electromagnetic accelerating area at a certain initial speed; the diffuser holes mainly function to disperse the paint supplied from the inert gas flow into shot particles, and enter the acceleration duct 8 at an initial velocity.
The first-stage electromagnetic coil 3 comprises a first-stage accelerating coil 302, and the first-stage accelerating coil 302 is uniformly wound on the outer side of the accelerating pipeline 8 and is arranged close to one side of the inlet end of the accelerating pipeline 8; one end of the first-stage accelerating coil 302 is a first-stage accelerating coil anode 301, the other end is a first-stage accelerating coil cathode 303, and the first-stage accelerating coil anode 301 and the first-stage accelerating coil cathode 303 are respectively connected with the coil controller 9.
The second-stage electromagnetic coil 4 comprises a second-stage accelerating coil 402, and the second-stage accelerating coil 402 is uniformly wound on the outer side of the accelerating pipeline 8 and is positioned in the middle of the accelerating pipeline 8; one end of the second-stage acceleration coil 402 is a second-stage acceleration coil anode 401, the other end is a second-stage acceleration coil cathode 403, and the second-stage acceleration coil anode 401 and the second-stage acceleration coil cathode 303 are respectively connected to the coil controller 9.
The third-stage electromagnetic coil 5 comprises a third-stage accelerating coil 502, and the third-stage accelerating coil 502 is uniformly wound on the outer side of the accelerating pipeline 8 and is arranged close to one side of the outlet end of the accelerating pipeline 8; one end of the third-stage acceleration coil 502 is a third-stage acceleration coil anode 501, the other end is a third-stage acceleration coil cathode 503, and the third-stage acceleration coil anode 501 and the third-stage acceleration coil cathode 503 are respectively connected with the coil controller 9.
The first-stage accelerating coil 302, the second-stage accelerating coil 402 and the third-stage accelerating coil 502 are arranged coaxially with the accelerating pipeline 8, and the number of turns of the first-stage accelerating coil 302, the second-stage accelerating coil 402 and the third-stage accelerating coil 502 is sequentially increased along the direction from the inlet end to the outlet end of the accelerating pipeline 8, namely, when the same current is conducted, the magnetic field intensity formed by the first-stage accelerating coil 302, the second-stage accelerating coil 402 and the third-stage accelerating coil 502 in the accelerating pipeline 8 is sequentially increased, the Lorentz force borne by the shot blasting material particles is gradually increased, and the shot blasting speed is enabled to reach more than 1000 m/s.
The coil controller 9 is respectively connected with the first-stage acceleration coil 302, the second-stage acceleration coil 402 and the third-stage acceleration coil 502, and controls the energizing sequence of each stage of coils through signals of the controller 12; in each acceleration period of the present embodiment, in 0 to 0.1s, the first-stage acceleration coil 302 is energized, and the second-stage acceleration coil 402 and the third-stage acceleration coil 502 are not energized; for 0.1-0.2s, the second stage accelerating coil 402 is energized, and the first stage accelerating coil 302 and the third stage accelerating coil 502 are not energized; in 0.2-0.3s, the third stage accelerating coil 502 is energized, and the first stage accelerating coil 302 and the second stage accelerating coil 402 are not energized; namely, after the coating particles reach the corresponding position area of the accelerating coil, the corresponding accelerating coil of the stage is electrified, and the other two stages of coils are not electrified.
In the embodiment, the current direction is adjusted by electrifying the three-level acceleration coil, so that the direction of the magnetic field in the acceleration pipeline 8 is consistent with the flow direction of the shot blasting material particles in the acceleration pipeline 8, and the condition that the shot blasting material particles are accelerated by Lorentz force is met; the number of coaxial turns of the adjacent accelerating coils and the accelerating pipeline is different, the number of turns is sequentially increased, namely when the current with the same magnitude is electrified, the magnetic field intensity is sequentially increased, the Lorentz force borne by the shot blasting material particles is exponentially increased, and the speed is quickly up to more than 1000 m/s.
It should be noted that the specific model of the coil controller 9 is 960U series. The material storage tank 2 is made of alkali-free high-temperature resistant glass fiber. The accelerating pipeline 8 is made of silicon steel.
Controlling the current of each stage of electromagnetic coil to be below 10A, and sequentially adjusting the size of the magnetic field to control the shot blasting speed; the range of the current of the first-stage coil 302 is 0-3.5A, the range of the current of the second-stage coil 402 is 3.5-7A, and the range of the current of the third-stage coil 502 is 7-10A.
Working principle of the utility model
As shown in fig. 8, in the present embodiment, each stage of the accelerating coils is periodically energized in turn, and the energizing period is 0.3 s; the following description will be given taking a certain energization period as an example:
opening the electromagnetic valve 1 for 0.1s, and blowing the liquid conductive shot blasting material or the molten metal shot blasting material into a three-level magnetic field acceleration area in the acceleration pipeline 8 at an initial speed V0 by the aid of the introduced 0.1s inert gas; then the electromagnetic valve is closed for 0.3s, and in the 0.3s of closing of the electromagnetic valve 1, when shot blasting material particles enter the first-stage electromagnetic coil 3, the first-stage accelerating coil 302 is electrified, the other two stages of coils are not electrified, and the electrifying time is 0.1 s; similarly, when the shot blasting material particles reach other levels of electromagnetic coils, the corresponding accelerating coils are electrified, and other accelerating coils are not electrified; the speed of the particles of the shot blasting material passing through the three-level magnetic field acceleration zone is accelerated from V0 to V, and the particles are ejected on the substrate in a surface shape from a rectangular outlet on the spray head 7, thereby completing the whole shot blasting process. The magnetic field intensity of the three groups of electromagnetic coils in the accelerating pipeline is increased in sequence; in the areas of the electromagnetic coils of adjacent stages, the Lorentz force applied to the shot particles of the shot blasting material is gradually increased, because F is Bqv, the number of turns is increased, and B is increased; the velocity v coming out of the previous stage increases, so the force F increases.
In conclusion, the shot blasting equipment has the advantages that the shot blasting material particles move in the magnetic field to generate induced current and bear Lorentz force in the magnetic field, and the magnetic field direction is enabled to be along the shot blasting direction through the electrified coil, so that the shot blasting equipment is compact in structure and simple to operate compared with the traditional shot blasting equipment; three-stage electromagnetic acceleration is adopted, so that the particle speed of the shot blasting material is exponentially increased, and finally the spraying speed is up to over 1000 m/s; the utilization of the shot blasting materials in the shot blasting process is increased, the waste of the shot blasting materials in the spraying process is reduced, the environmental pollution is low, and the high-speed shot blasting speed is sprayed on the surface of the matrix, so that the bonding strength of the shot blasting materials and the matrix is higher. The shot blasting quality of the matrix is improved, and the electromagnetic field is adopted, so that the shot blasting speed is controllable, namely the shot blasting quality can be easily controlled. The device has the advantages of simple structure, low cost, simple operation and the like.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (8)
1. An electromagnetic shot blasting device is characterized by comprising an electromagnetic coil, a rectangular bracket (6), a spray head (7), an accelerating pipeline (8), a coil controller (9) and a storage chamber (14);
the material storage chamber (14) is provided with a feeding port and a discharging port, the material storage chamber (14) is also provided with an air inlet, the air inlet of the material storage chamber (14) is connected with an external inert gas source, the discharging port of the material storage chamber (14) is connected with the inlet end of the accelerating pipeline (8), and the outlet end of the accelerating pipeline (8) is connected with the spray head (7);
two rectangular supports (6) are respectively arranged at two sides of the accelerating pipeline (8), one end of each rectangular support (6) is fixed on the side wall of the material storage chamber (14), the other end of each rectangular support is fixed on the outer side wall of the accelerating pipeline (8) through a connecting rod, and the coil controller (9) is arranged on the rectangular supports (6);
the electromagnetic coils are provided with a plurality of groups, the plurality of groups of electromagnetic coils are uniformly wound on the outer side wall of the accelerating pipeline (8) in groups, the winding turns of each group of electromagnetic coils are different, the number of turns of each group of electromagnetic coils is sequentially increased from the inlet end to the outlet end of the accelerating pipeline (8), a plurality of magnetic field regions are formed inside the accelerating pipeline (8), and the plurality of groups of electromagnetic coils are respectively and electrically connected with the coil controller (9);
the three groups of electromagnetic coils are arranged, and a first-stage coil (302), a second-stage coil (402) and a third-stage coil (502) are sequentially arranged from the inlet end to the outlet end of the accelerating pipeline (8);
the number of turns of the first-stage coil (302) is 200-400, the number of turns of the second-stage coil (402) is 400-650, and the number of turns of the third-stage coil (502) is 650-1000;
the device is also provided with a controller (12) outside, and the controller (12) is electrically connected with the coil controller (9).
2. An electromagnetic peening apparatus according to claim 1, further comprising a dispersion plate (13), the dispersion plate (13) being disposed between the accumulator chamber (14) and the acceleration duct (8); a plurality of flow dispersing holes are uniformly arranged on the flow dispersing disc (13).
3. An electromagnetic shot-blasting machine according to claim 1, wherein the storage chamber (14) is provided with an electromagnetic valve (1) at the air inlet, the electromagnetic valve (1) being electrically connected to the controller (12).
4. An electromagnetic peening apparatus according to claim 1, wherein the nozzle (7) has a rectangular configuration.
5. The electromagnetic shot-blasting machine according to claim 1, characterized in that the storage tank (2) is mounted on the top of the storage chamber (14), the storage tank (2) is provided with a feeding port and a discharging port, and the discharging port of the storage tank (2) is connected with the feeding port of the storage chamber (14).
6. An electromagnetic shot-blasting machine as claimed in claim 5, characterized in that a manual valve is mounted at the feed inlet of the storage tank (2);
the material storage tank (2) is made of alkali-free high-temperature resistant glass fiber.
7. An electromagnetic shot-blasting machine as defined in claim 1, wherein the outer side wall of the accelerating conduit (8) is further sleeved with a ring-shaped bracket (10), and the ring-shaped bracket (10) is fixed on the rectangular bracket (6).
8. An electromagnetic peening apparatus according to claim 1, wherein the accelerating tube (8) is silicon steel.
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| CN202121757295.9U CN215968276U (en) | 2021-07-29 | 2021-07-29 | Electromagnetic shot blasting device |
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| CN202121757295.9U CN215968276U (en) | 2021-07-29 | 2021-07-29 | Electromagnetic shot blasting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115401621A (en) * | 2022-08-17 | 2022-11-29 | 武汉船用机械有限责任公司 | Shot blasting device accelerated by electric field |
| CN115896660A (en) * | 2022-10-26 | 2023-04-04 | 中国航发北京航空材料研究院 | Titanium alloy strengthening device and method in planar intersection system in pulse magnetic field |
-
2021
- 2021-07-29 CN CN202121757295.9U patent/CN215968276U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115401621A (en) * | 2022-08-17 | 2022-11-29 | 武汉船用机械有限责任公司 | Shot blasting device accelerated by electric field |
| CN115896660A (en) * | 2022-10-26 | 2023-04-04 | 中国航发北京航空材料研究院 | Titanium alloy strengthening device and method in planar intersection system in pulse magnetic field |
| CN115896660B (en) * | 2022-10-26 | 2024-02-13 | 中国航发北京航空材料研究院 | Titanium alloy strengthening device and method in plane convergence system in pulsed magnetic field |
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