CN108987030A - Electromagnetic coil magnetic drive operation method, magnetic driving mechanism and percussion mechanism - Google Patents

Abstract

The invention relates to a magnetic driving operation method of an electromagnetic coil, a magnetic driving mechanism and an impact device. The driving mechanism includes a coil and a combination formed by a combination of a magnetic induction section and a non-magnetic induction section that moves relative to the coil. The impact device includes a frame, a hammer body, a coil and a controller that controls the power on and off of the coil. The control method is to energize the coil when the magnetic induction body is located in the magnetic induction area at the front end of the coil so that the coil generates a magnetic field to drive the magnetic induction body; The unipolar and one-way drive of the magnetic induction body is ingeniously conceived. By electromagnetically driving the magnetic induction body to perform linear or linear reciprocating motion, it can be used to manufacture impact hammers, impact rammers, pile drivers, crushers, foundation compactors, vibrators, etc., or used in In rail transit, transportation and military fields, electromagnetism can be used for one-way long-distance and reciprocating operation to do work, which has the advantages of direct energy conversion, no pollution, and low wear and tear.

Description

Electromagnetic coil magnetic driving operation method, magnetic driving mechanism and impact device

technical field

The invention relates to a magnetic driving operation method of an electromagnetic coil, a magnetic driving mechanism and an impact device.

Background technique

In the prior art, the products driven by electromagnetic coils for linear operation include relays, contactors, solenoid valves, etc. Due to the principle that the two poles of the magnetic field of the electromagnetic coil have equal energy and opposite directions, that is, the magnetic field of the electromagnetic coil has equal energy and opposite magnetic poles at the two poles. , the magnetic inductor (made of ferromagnetic materials such as iron, cobalt, nickel) generates an indirect magnetic field under the induction of the magnetic field and attracts the coil. When the magnetic inductor moves relative to the coil, when the magnetic inductor is close to the coil Being attracted, it will be attracted in the opposite direction when it is away from the coil, so that the magnetic sensor cannot pass through the coil all the way, and the movement of the magnetic sensor is limited, which restricts the application range and field of electromagnetic products.

Contents of the invention

The object of the present invention is to provide a coil that is energized to attract the magnetoduct during the acceleration stroke of the magnetoduct, and de-energize the coil when the magnetoduct leaves the coil to drive the magnetic field to avoid the impact that the reverse magnetic field area hinders the movement of the magnetoduct device; the purpose of the present invention is also to provide a magnetic drive mechanism; the purpose of the present invention is also to provide an electromagnetic coil magnetic drive operation method.

In order to achieve the above object, the impact device of the present invention adopts the following technical scheme: the impact device includes a frame, and the frame is provided with an impact body that can move up and down relative to the frame, and the impact body is suspended on the frame through an accumulator. , and has an initial position in a force-balanced state. The impact body includes an impact head and a magnetic drive mechanism. The magnetic drive mechanism includes a vertical rod connected to the impact head and at least one lead unit arranged on the vertical rod. The lead unit Including magnetic induction sections and non-magnetic induction sections arranged vertically alternately, the magnetic drive mechanism also includes at least one coil fixed on the frame, when the impact body is in the initial position, the The magnetic induction section is located in the magnetic induction area formed by the lower end of the coil when the lowermost coil is energized. When the impact body is at the extreme position of the upper end, the magnetic induction section of a certain lead unit on the vertical rod is located at the upper end of the coil when the uppermost coil is energized. In the formed magnetic induction area, a controller for controlling the power on and off of the coil is also arranged on the frame.

The frame includes a horizontal plate, the horizontal plate is provided with a relief hole for the vertical bar to pass through, the impact head is located under the horizontal plate, an elastic rope is connected between the impact head and the horizontal plate, and the horizontal plate and the impact A helical spring is sheathed on the vertical bar between the heads, and the elastic rope and the helical spring constitute the accumulator.

The transmission device of the synchronous signal of the movement of the impact body is also installed on the frame so as to feed back the synchronous signal to the controller and make the controller control the power on and off of the coil.

The magnetic driving mechanism of the present invention adopts the following technical scheme: the magnetic driving mechanism includes a relative moving body of the coil, and the relative moving body of the coil includes at least one lead unit arranged on the relative moving body of the coil, and the lead unit includes a relative moving body along the coil. The magnetic induction section and the non-magnetic induction section are arranged alternately in the length direction of the body. The magnetic driving mechanism also includes at least one coil that moves relative to the lead unit. The magnetic driving mechanism also includes when the coil is relatively moving. A controller that controls the coil to be energized when the sensing section is located in the magnetic induction area formed by the front end of the coil when the coil is energized, and controls the coil to be powered off when the magnetic induction section moves to the center area of the coil's magnetic field.

There are multiple coils and they are arranged at intervals along the length direction of the moving body relative to the coils.

There are multiple lead units and they are arranged sequentially along the length direction of the coil relative to the moving body.

The magnetic driving operation method of the electromagnetic coil of the present invention adopts the following technical scheme: the single pole of the coil is used to drive the magnetic induction body in the single-way movement of the magnetic induction body by turning on and off the power to the coil.

The motion of the magnetic induction body is a reciprocating linear motion. In any one-way round trip, by turning on and off the power to the coil, the unipolar assist magnetic field of the coil is used to provide driving force for it, and the coil’s influence on it is eliminated. The resistance magnetic field accelerates the magnetoreceptor.

Within the motion stroke of the magnetic induction body, the magnetic induction body is accelerated multiple times through the multi-level coils.

The motion of the magnetic induction body is a one-way linear motion. During the movement of the magnetic induction body, by controlling the power on and off of the multi-stage coil, the unipolar assist magnetic field of the coil is used to provide driving force for it, and eliminate The resistance magnetic field of the coil to it enables the magnetic inductor to obtain multiple continuous accelerations of the multi-stage coil.

The beneficial effects of the present invention are: the present invention uses a unique control method for the coil to energize the coil when the magnetic induction body is located in the magnetic induction area at the front end of the coil so that the coil generates a magnetic field to drive the magnetic induction body. Power off the coil when it is in the magnetic field area, so as to realize the unipolar and one-way drive of the coil to the magnetic inductor. The idea is ingenious. By electromagnetically driving the magnetic inductor to perform linear or linear reciprocating motion, impact hammers, impact rammers, pile drivers, Crusher, foundation tamping machine, vibrator, etc., or used in rail transit, transportation and military fields, can use electromagnetics for one-way long-distance operation and reciprocating operation to do work, with the advantages of direct energy conversion, no pollution, and small wear .

Description of drawings

Fig. 1 is the structural representation of the first embodiment of the impact device of the present invention;

Fig. 2 is the schematic diagram of impact body and coil part in Fig. 1;

3 is a schematic diagram showing the working principle of the impact device;

Fig. 4 is the schematic diagram of the impact body and the electromagnetic drive part in the second embodiment of the impact device;

Fig. 5 is a schematic diagram of the impact body and the electromagnetic drive part in the third embodiment of the impact device;

Fig. 6 is a schematic diagram of the impact body and the electromagnetic drive part in the fourth embodiment of the impact device;

In the figure: 1-frame, 11-column, 12-first horizontal plate, 13-second horizontal plate, 14-workbench, 2-impact body, 21-impact head, 22-vertical bar, 221-magnetic induction Section, 222-non-magnetic section, 23-pin, 3-accumulator, 41-first coil, 42-second coil, 5-controller, 6-travel switch, 7-cable, 8-switch , 9-power supply.

Detailed ways

Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

In order to facilitate the understanding of the content of this part, the following terms to be used below are defined and explained:

Initial position: refers to the force-balanced position of the impact body when the impact body of the present invention is suspended on the frame by the accumulator, and this position is the position of the impact body when it is at rest.

Limit position: refers to the highest position of the impact body when it moves upwards. The speed of the impact body’s up and down movement is zero when the impact body is at this position, and this position is located in the magnetic induction area formed by the upper end of the uppermost coil when it is energized.

Magnetic core: It means that when the magnetic sensor is in the magnetic field generated by the coil, the magnetic sensor is subjected to magnetic forces in all directions. The magnetic force on the magnetic sensor can be regarded as concentrated on one point. For symmetrical figures with regular shapes such as cylinders Shape, cylinder, sphere, cube, cuboid, etc., this point coincides with the geometric center of these shapes, when the magnetic induction segment is stationary in the energized coil, this point is at the center of the magnetic field of the coil, if the point deviates from the coil At the center of the magnetic field, the magnetoductor will experience unbalanced magnetic force, which will cause the magnetoductor to move.

Front limit position: In the electromagnetic coil magnetic drive operation method of the present invention, when there is only one coil, the front limit position refers to the position where the magnetic induction body moves to the front end of the coil along the axis direction of the coil and is farthest from the coil At this position, the speed of the magnetic induction body is zero; when there are more than two coils, the front limit means that the magnetic induction body moves to the front end of the first coil along the axis of the coil and is at a distance from the first coil. At the farthest position of the coils, the velocity of the magnetoductor is zero at this position.

Rear limit position: In the electromagnetic coil magnetic driving operation method of the present invention, when there is only one coil, the rear limit position refers to the position where the magnetic induction body moves to the rear end of the coil along the axis direction of the coil and is farthest from the coil. The position at the position at which the speed of the magnetic sensor is zero; when there are more than two coils, the rear limit position refers to the magnetic sensor moving along the axis of the coil to the rear end of the last coil and the distance from the last The farthest position of a coil at which the velocity of the magnetoduct is zero.

Front initial position: In the electromagnetic coil magnetic driving operation method of the present invention, when there is only one coil, the front initial position refers to a certain place in the magnetic induction area formed at the front end of the coil when it is energized. The induction body is attracted by the coil; when there are more than two coils, the front initial position refers to the position where the magnetic induction body moves along the axis of the coil to the magnetic induction area formed at the front end of the first coil when it is energized. Somewhere, in this position the magnetoductor is attracted by the first coil.

Back initial position: In the electromagnetic coil magnetic driving operation method of the present invention, when there is only one coil, the back initial position refers to a certain place in the magnetic induction area formed at the rear end of the coil when it is energized. The magnetic induction body is attracted by the coil; when there are more than two coils, the rear initial position refers to the magnetic induction area formed by the magnetic induction body at the rear end when the magnetic induction body moves along the axis of the coil to the last coil when it is energized somewhere in the position where the magnetoductor is attracted by the last coil.

The embodiment of the impact device of the present invention, as shown in Figures 1 to 3, the impact device includes a frame 1 and an impact body 2 suspended on the frame 1 by an energy accumulator 3, and the impact body 2 can move upwards and downwards. Reciprocating linear movement, the impact body is in the initial position when it is stationary, the impact body 2 is provided with a magnetic induction body, and the frame 1 is also equipped with a coil and a controller 5 that controls the power-off of the coil, and the electromagnetic force provided by the coil attracts the impact body The magnetic induction body on the 2 thus drives the impact body 2 to move.

As shown in Figure 1, the frame 1 includes four uprights 11, a first horizontal plate 12, a second horizontal plate 13, and a workbench 14. The bottom ends of the uprights 11 are fixed on the workbench 14, and the uprights 11 pass through the Through the second horizontal plate 13 and the first horizontal plate 12 , the two horizontal plates cooperate with the external threads on the column 11 so as to position the two horizontal plates and adjust the height of the horizontal plate on the column 11 .

The impact body 2 includes an impact head 21 and a magnetic drive mechanism. The magnetic drive mechanism includes a vertical bar 22 connected to the impact head. The impact head 21 and the vertical bar 22 are welded and fixed. Two coil springs (that is, energy storage Device 3) is connected with the impact head 21 and suspends the impact body 2 on the second horizontal plate 13. The coil spring is not only used to balance the weight of the impact body 2 when the impact body 2 is at rest, but also has the function of energy storage. When the body moves to the limit position and needs to move in reverse, the energy accumulator provides the restoring force, so that the impact body 2 moves more smoothly. The vertical rod 22 passes through the hole in the middle of the second horizontal plate 13 and the first horizontal plate 12 from bottom to top. The hole has a guiding effect. The vertical rod 22 can slide up and down relative to the hole. The impact head 21 at the bottom of the vertical rod 22 is located Between the second horizontal plate 13 and the workbench 14, when the impact body 2 moves up and down, the workbench 14 or the objects on the workbench 14 can be hammered. The vertical bar 22 is provided with a magnetic induction section 221, a non-magnetic induction section 222, a magnetic induction section 221, and a non-magnetic induction section 222 sequentially from bottom to top, and a magnetic induction section 221 and an adjacent non-magnetic induction section 222 together form a guide In this embodiment, two lead units are arranged on the vertical bar 22. The magnetic induction section 221 is made of or coated with a magnetic induction body. The magnetic induction body mainly refers to ferromagnetic materials such as iron, cobalt, nickel, etc. In this embodiment, cheap iron is used as the magnetic induction body, and the non-magnetic induction body The body is made of wood or aluminum alloy, and the magnetic induction body will be attracted in the magnetic field, so the magnetic field generated when the coil is energized can drive the magnetic induction body to move close to the coil. There are two coils sleeved on the vertical rod 22, and the arrangement position of the first coil 41 needs to ensure that the magnetic induction section 221 of the first lead unit of the impactor 2 is located below the first coil 41 when the impact body 2 is at rest. In the area, so as to ensure that the magnetic induction section 221 of the first lead unit is moved upward by the attraction force of the first coil 41 when the first coil 41 is energized, the arrangement position of the second coil 42 needs to ensure that it is within the position of the first lead unit. When the magnetic core of the magnetic induction section 221 moves to the middle position of the first coil 41 , the magnetic induction section 221 of the second lead unit moves to the lower part of the second coil 42 and is located in the magnetic induction area of the second coil 42 .

The first coil 41 and the second coil 42 are electrically connected to the controller 5 installed on the frame 1 through the cable 7, the switch 8 on the two coils is controlled by the controller 5, and the two coils are powered by the power supply 9 , the power supply 9 in this embodiment adopts the same power supply. The top of the vertical bar 22 is also provided with a protruding pin 23, and the limit position of the upper pin 23 on the corresponding vertical bar 22 on the frame 1 is provided with a travel switch 6. When the vertical bar 22 moves to the upper limit position, its pin The column 23 just touches the travel switch 6 to close the travel switch 6, and the travel switch 6 feeds back the in-position signal to the controller 5 through the cable 7, and the controller 5 sequentially controls the second coil 42 and the first coil 41 to be energized, thereby performing Downward drive, after pin 23 breaks away from travel switch 6, the flick of travel switch 6 can bounce off automatically. There is an air gap between the coil and the vertical rod to minimize the friction force from the coil when the coil and the vertical rod move relative to each other.

The transmission device of the synchronous signal of the impact body movement is also installed on the frame to feed back the synchronous signal to the controller and make the controller control the power on and off of the coil. The transmission device of the synchronous signal of the impact body movement can be an infrared distance sensor or a proximity switch, etc. .

During the working process of the impact device of the present invention: when standing still, the coil spring suspends the impact body 2, which can balance the weight of the impact body 2, so that it is more labor-saving when activated by electromagnetic force. When the work starts, the controller 5 controls the first When the coil 41 is energized, the first coil 41 generates a magnetic field to attract the magnetic induction section of the first lead unit, and drives the impactor 2 to move upward. When the magnetic induction section of the first lead unit moves to its magnetic core at the center of the magnetic field of the first coil 41 Control the power-off of the first coil 41 during the position, at this time the second lead unit on the vertical bar 22 is just in the lower magnetic induction area of the second coil 42, the controller 5 controls the second coil 42 to be powered, and the second coil 42 is powered The magnetic field force generated afterward attracts the magnetically inductive section 221 of the second lead unit, thereby providing a second acceleration to the impact body 2, and the magnetic core of the magnetically inductive body of the second lead unit moves to the center position of the second coil 42 When the second coil 42 is powered off, the impact body 2 continues to go up a certain distance to reach the upper limit position. At this time, the pin 23 on the vertical bar 22 collides with the travel switch 6, and the travel switch 6 is closed to generate an in-position signal to feed back to the controller 5. When the impact body 2 goes up, the compressed coil spring stores energy. At the same time, the impact body 2 itself has gravitational potential energy. Under the action of the spring force and the gravitational potential energy, the impact body 2 starts to go down. In the magnetic induction area on the upper part of the coil 42, the controller 5 controls the second coil 42 to energize, thereby applying a magnetic field force to the impact body 2. The impact body 2 has a huge downward impact to achieve the purpose of impact. After the impact of the impact body 2 is completed, the coil spring is pulled and stored energy, and then provides an upward elastic force to drive the impact body 2 upward. When it reaches the first When the magnetic induction section 221 of a lead unit is in the magnetic induction area of the first coil 41 , the above-mentioned steps are repeated, so as to realize the up and down linear reciprocating motion of the impact hammer, and realize multiple impacts on the objects on the workbench 14 .

Regarding the control of the controller: during the upward movement of the impact body, when the magnetic induction section of the lead unit moves into the magnetic induction area formed by the lower end of the matching coil that provides the driving magnetic force to it, the controller controls the matching coil Power on, when the magnetic core of the magnetic induction section of the lead unit moves to the center of the magnetic field of the adapter coil, the controller controls the adapter coil to power off; during the downward movement of the impact body, when the magnetic induction section of the lead unit moves When it enters the magnetic induction area formed by the upper end of the matching coil that provides the driving magnetic force, the controller controls the matching coil to be energized, and when the magnetic core of the magnetic induction section of the lead unit moves to the magnetic field center position of the matching coil , the controller controls the adapter coil to be powered off.

It should be noted that the impact device in this embodiment is an electromagnetic hammer, which can also be replaced by a rammer, pile driver, crusher, foundation compactor, vibrator, etc. in other embodiments.

In other embodiments of the impact device of the present invention: the vertical rod can also be replaced with a hollow sleeve structure, and the coil is arranged inside the vertical rod at this time, that is, the hollow vertical rod at this time moves outside the coil; the travel switch can also be Replace it with an infrared proximity switch, a distance sensor or other in-position detection sensors; Ground, the contact rod is arranged on the impact head, the contact rod is vertically arranged, the corresponding position of the second horizontal plate is provided with a perforation, the upper end of the contact rod is provided with a contact extending horizontally to the bottom of the travel switch, and the contact rod is arranged on the impact body to At the extreme position, the contact can just touch the finger of the limit switch; the number of lead unit can be replaced by one, as shown in Figure 4, the number of coils can be one, two or more at this time, of course, the lead unit The number of units can also be replaced by three or more. At this time, the corresponding number of coils should be equal to or greater than the number of lead units; the number of magnetic drive mechanisms is not limited to one, such as Two or more shown in Figure 5, at this time, it is necessary to ensure that the positions of the lead unit and the coil are in one-to-one correspondence in the length direction of the vertical bar 22, and the one-to-one correspondence means that they are located at the same height and have the same spacing distance, and Synchronous control; the accumulator 3 is not limited to the use of coil springs, but can also be replaced by air springs or hydraulic springs; Rope, a coil spring is set on the vertical bar between the impact head and the second horizontal plate. When the impact body goes down, the elastic rope provides tension, and when the impact body goes up, the coil spring provides restoring force; the coil of the magnetic drive mechanism can be used as a movable components, and the vertical bar and the lead unit on it are set as fixed components; as shown in Figure 6, the first coil 41 and the second coil 42 are not limited to sequential control, and the first coil 41 and the second coil can also be 42 Simultaneous power on and off to drive the two magnetic induction sections 221; of course, at this time, the first coil and the second coil are used as a pair, and multiple pairs can be set, and the multiple pairs are controlled sequentially, that is, each time the two coils are controlled to pass through. power off.

The embodiments of the magnetic drive mechanism of the present invention are the same as the embodiments of the magnetic drive mechanism of the impact device of the present invention, and will not be repeated here.

Embodiment 1 of the electromagnetic coil magnetic driving operation method of the present invention: This embodiment is described for a coil, that is, the number of coils m=1, and the magnetic induction body is a moving body, and the coil is a fixed body. A magnetic induction body is arranged on one side of the axial direction of the coil, and the magnetic induction body is arranged in the magnetic induction area formed by one end of the coil after the coil is energized so that the coil can be attracted after the coil is energized, and then the coil is energized by the controller, and the coil The generated magnetic field attracts the magnetic sensor, so that the magnetic sensor moves along the axis of the coil to the direction close to the coil. When the magnetic sensor moves to the middle position of the magnetic core of the coil magnetic field, the control coil is powered off, and the magnetic sensor The body continues to move forward under the action of inertia, so that the coil only provides a driving force for the magnetic induction body to move forward, and eliminates the attractive resistance when the magnetic induction body begins to move away from the coil, ensuring the linear motion of the magnetic induction body went smoothly.

Embodiment 2 of the electromagnetic coil magnetic driving operation method of the present invention: This embodiment is described for the scheme of more than two coils, that is, the number of coils m≥2, and the magnetic induction body is a moving body, and the coil is a fixed body. Set two or more coils in sequence along the set straight line, the number of coils is selected according to the needs of use, the axis of the coil is collinear with the set straight line, and the magnetic induction body is arranged on the front side of the first coil axis direction and the magnetic induction body Located in the magnetic induction area formed by the front end of the first coil after it is energized, the controller controls the first coil to be energized, and the magnetic induction body moves toward the first coil along the axis of the coil, and then adopts the following control steps: When the magnetic induction When the magnetic core of the body moves to the center of the magnetic field of the first coil, the first coil is controlled to be de-energized, and the magnetic sensor continues to move in a straight line under the action of inertia; When it is within the magnetic induction area, the controller controls the second coil to be energized, and the magnetic induction body continues to move toward the second coil along the axis of the coil. When the magnetic core of the magnetic induction body moves to the center of the magnetic field of the second coil, it controls the second The two coils are de-energized, and the magnetic induction body continues to move linearly under the action of inertia; then repeat the above control steps in turn to control the power-on and power-off of the rear coils. High speed, the method can be used in rail transportation and related fields.

Embodiment 3 of the electromagnetic coil magnetic driving operation method of the present invention: This embodiment is described for a coil, that is, the number of coils n=1, and the magnetic induction body is a moving body, and the coil is a fixed body. A magnetic induction body is arranged on one side of the coil axis direction, and limit pieces are respectively provided at the front and rear limit positions of the magnetic induction body to limit the range of motion of the magnetic induction body between the two limit pieces; There are also front and rear initial positions in the moving stroke that are respectively located in the magnetic induction area formed by the front and rear ends of the coil when it is energized. The following control steps are adopted: when the magnetic induction body is located at the front initial position, the coil is controlled by the controller. When energized, the magnetic sensor moves toward the coil along the axis of the coil. When the magnetic core of the magnetic sensor moves to the center of the coil magnetic field, the control coil is powered off, and the magnetic sensor continues to move linearly under the action of inertia; after the magnetic sensor moves to At the limit position, make the contact on the magnetic sensor just touch the travel switch at the corresponding position, and the travel switch will feed back the in-position signal when the magnetic sensor moves to the front limit position to the controller, and the magnetic sensor moves to the rear limit position And the return movement, when the magnetic induction body moves back to the initial position, the controller controls the coil to be energized, and the magnetic induction body moves toward the coil along the axis of the coil. When the magnetic core of the magnetic induction body moves to the center position of the coil magnetic field, the control coil is turned off. Electricity, the magnetic induction body continues to move to the front limit position, at this time the contact on the magnetic induction body just touches the travel switch at the corresponding position, and the travel switch feeds back the in-position signal when the magnetic induction body runs to the front limit position to the controller , the magnetic induction body continues to reverse and return to the front initial position again, and then repeat the above control steps to realize the linear reciprocating motion of the magnetic induction body. In this embodiment, the front and rear limit positions and the front and rear initial positions are staggered in the front and rear directions Arrangement, when the magnetic induction body returns from the front limit position to the front initial position, or when the rear limit position returns to the rear initial position, the energy accumulator provides the restoring force for the reverse movement of the magnetic induction body.

Embodiment 4 of the electromagnetic coil magnetic driving operation method of the present invention: This embodiment is described for the scheme of more than two coils, that is, the number of coils n≥2, and the magnetic induction body is a moving body, and the coil is a fixed body. Set two or more coils in sequence along the set straight line, the axes of the coils are collinear with the straight line, the magnetic induction body is arranged on the front side of the first coil axis direction, and the limit positions are respectively set at the front and rear limit positions of the magnetic induction body movement. Positioning parts to limit the range of motion of the magnetic sensor between the two limiting parts, and the magnetic sensor also has a magnetic induction formed at the opposite end of the first and last coils when they are energized. The front and back initial bits in the area;

When the magnetoductor is at the beginning of the forward journey, the magnetoductor is located at the initial position, and the first coil of the forward journey is controlled by the controller to be energized, and the magnetoductor moves toward the first coil along the axis of the coil, and the following control steps are adopted : When the magnetic core of the magnetic sensor moves to the center position of the magnetic field of the first coil, the first coil is controlled to be de-energized, and the magnetic sensor continues to move in a straight line under the action of inertia; when the magnetic sensor moves to the position where the second coil is energized When it is in the magnetic induction area formed by its front end, the controller controls the second coil to be energized, and the magnetic induction body continues to move toward the second coil along the axis of the coil. When the magnetic core of the magnetic induction body moves to the center of the magnetic field of the second coil Control the power-off of the second coil at the position, and the magnetoductor continues to move in a straight line under the action of inertia; then repeat the above steps to control the power-on and power-off of subsequent coils to realize the magnetic drive process of the magnetoductor going;

When the magnetic induction body moves to the rear limit position, the contact on the magnetic induction body just touches the travel switch at the corresponding position, and the travel switch feeds back the in-position signal when the magnetic induction body reaches the rear limit position to the controller. After the induction body moves to the rear limit position, the return trip starts. When it moves to the rear initial position, the controller controls the first coil of the return trip to be energized, and the magnetic induction body moves toward the first coil along the axis of the coil, and then follows the above The control step controls the power-on and power-off of the coil during the return process and starts to go again after moving to the front limit position, and moves to the front initial position; then repeat the above-mentioned reciprocating action.

In other embodiments: the coil can also be a moving body, and the magnetic induction body can be set as a fixed body, so that the coil can move relative to the magnetic induction body; Inside the body. The accumulator may also not be provided, and the front initial position and the front limit position may be set together accordingly, and the rear initial position and the rear limit position may be set together. way to achieve, when the magnetic induction body moves to the stopper at the front and rear initial positions, it is stopped by the stopper and stops moving, and the reverse movement is performed; it can also only be moved to the front and rear limit positions of the magnetic induction body When one of them is used, make the contact on the magnetic induction body touch the travel switch, as in the first embodiment of the impact device of the present invention, the travel switch is set at the corresponding limit position when the impact body is at the highest position when it goes up, No travel switch is provided during the downlink; of course, the travel switch can also be replaced by an infrared proximity switch, a distance sensor, and the like.

The rectilinear reciprocating electromagnetic drive method of the present invention can also be popularized and used in the field of rail transportation, transportation and military field, and can use electromagnetics to perform one-way long-distance operation and reciprocating operation to do work, and has the advantages of direct energy conversion, no pollution, and small wear and tear Etc.

Claims (10)

1. electromagnetic coil magnetic drive operation method, characterized in that pass through list of the switching electricity to move in magnetic strength body to coil Magnetic strength body is driven using the monopole of coil in journey.

2. electromagnetic coil magnetic drive operation method according to claim 1, characterized in that the movement of the magnetic strength body is Linear reciprocating motion, in any one way of roundtrip, by the switching electricity to coil, to utilize the power-assisted of the monopole of coil Magnetic field provides driving force for it, and eliminates coil to its resistance magnetic field, so that magnetic strength body is accelerated.

3. electromagnetic coil magnetic drive operation method according to claim 2, characterized in that in the movement travel of magnetic strength body It is interior, magnetic strength body is repeatedly accelerated by multi-pole coils.

4. electromagnetic coil magnetic drive operation method according to claim 1, characterized in that the movement of the magnetic strength body is Unidirectional linear motion, in the motion process of magnetic strength body, by controlling the switching electricity of multi-pole coils, to utilize the monopole of coil Power-assisted magnetic field provide driving force for it, and eliminate coil to its resistance magnetic field, so that magnetic strength body obtains the more of multi-pole coils Secondary lasting acceleration.

5. magnetic driving mechanism, characterized in that including coil relative motion body, the coil relative motion body includes at least one The lead unit being located on coil relative motion body, lead unit include being arranged alternately along the length direction of coil relative motion body Magnetic strength section and non-magnetic strength section, magnetic driving mechanism further includes the coil of at least one and lead unit relative motion, and magnetic force drives Motivation structure further includes the coil front end institute when magnetic strength section Mr. Yu's coil of some lead unit on coil relative motion body is powered The coil is controlled when in the magnetic strength area of formation to be powered, when the magnetic strength section moves to the center that its magnetic core is located at the magnetic field of the coil The controller of the coil blackout is controlled when domain.

6. magnetic driving mechanism according to claim 5, characterized in that the coil has multiple and in coil relative motion Setting is spaced on the length direction of body.

7. magnetic driving mechanism according to claim 5 or 6, characterized in that the lead unit has multiple and in coil The length direction of relative motion body is sequentially arranged.

8. percussion mechanism, characterized in that including rack, the rack is equipped with the impact body that can be moved up and down with respect to rack, punching It hits body to suspend in midair on the rack by accumulator, and there is the initial position in force balance state, impact body includes impact head And magnetic driving mechanism, magnetic driving mechanism includes the vertical bar connecting with impact head and at least one is located at leading on vertical bar Cheng Danyuan, lead unit include the magnetic strength section being vertically arranged alternately and non-magnetic strength section, and magnetic driving mechanism further includes at least one The coil being fixed on the rack, when impact body is located at the initial position, the magnetic strength section of some lead unit on vertical bar Coil lower end is formed by magnetic strength area when being powered positioned at lower side coil, when impact body is located at the extreme position of upper end, is erected The magnetic strength section of some lead unit is located at coil upper end when top side coil is powered and is formed by magnetic strength area on bar, in rack also Controller equipped with control coil power on/off.

9. percussion mechanism according to claim 8, characterized in that the rack includes transverse slat, and transverse slat is equipped with described in confession The relief hole that vertical bar passes through, the impact head are located at below transverse slat, are connected with elastic rope between impact head and transverse slat, transverse slat with Helical spring is also arranged on vertical bar between impact head, elastic rope and helical spring constitute the accumulator.

10. percussion mechanism according to claim 8 or claim 9, characterized in that it is same to be also equipped with impact body movement in the rack The transfer device of signal is walked for controller feedback synchronization signal and to keep the switching of controller control coil electric.