CN105048758B - Electromagnetic direct-drive formula impact shock body - Google Patents
Electromagnetic direct-drive formula impact shock body Download PDFInfo
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- CN105048758B CN105048758B CN201510275841.8A CN201510275841A CN105048758B CN 105048758 B CN105048758 B CN 105048758B CN 201510275841 A CN201510275841 A CN 201510275841A CN 105048758 B CN105048758 B CN 105048758B
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- coil
- block stamp
- mover
- mover block
- stator
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Abstract
The present invention relates to technical field of engineering machinery, especially a kind of electromagnetic direct-drive formula impact shock body.Including being made up of stator, mover block stamp, detection means, control and driver, some pieces of permanent magnets are installed with the stator, permanent magnet is that N, S pole are alternately arranged close to mover block stamp side, the length of permanent magnet is arranged according to the length of mover block stamp and range demands, the two ends of the mover block stamp stroke set full stroke position and backhaul extreme position, the magnet coil of ribbon core is installed with the mover block stamp, the arrangement mode of coil, according to three-phase A, B, C order, is one group of cycle arrangement with three；Mover block stamp non-percussion side is provided with detection means.The present invention reduces the mechanism conversion device of traditional electrodynamic type impact shock body, reduce weight and volume, improve efficiency, and improve the impact operation power of impact shock body and the impact resistance of mover.
Description
Technical field
The present invention relates to technical field of engineering machinery, especially a kind of electromagnetic direct-drive formula impact shock body.
Background technology
Impact shock Work machine generally comprises rock drill, pile-grafting machine, breakup pick, vibrospade etc. in engineering machinery, it
Breaking capacity to stiff soil and rock is that other machineries are incomparable.Impact shock machinery (equipment) core component be
Impact shock body, impact shock body has internal combustion type, pneumatic type, fluid pressure type, electrodynamic type etc. by power source, and internal combustion type need not be equipped with
Power source, but weight and volume is larger, reliability is poor；Pneumatic type is simple in construction, technical difficulty is low, but the power source matched somebody with somebody
(air compressor machine) volume, weight are big, and source of the gas transmission efficiency is low, and noise is larger；It is fluid pressure type small volume, lightweight, but there is also system
Make the shortcomings of difficulty is big, cost is high, the easy leakage loss of fluid, maintenance requirement height, the unsuitable relatively long distance of hydraulic power supply are transmitted；
There is electrodynamic type power source to obtain that convenient, power transfer efficiency is high, long transmission distance, control performance are good, easy to manufacture, price compared with
Low advantage, however, the impact shock body of existing electrodynamic type impact shock machinery (equipment) uses and produces electric rotating machine
Raw motion is converted to linear motion by mechanical mechanism, and switching mechanism is complicated, adds weight and volume, reduces efficiency.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of electromagnetic direct-drive formula impact shock body, traditional electrodynamic type is reduced
The mechanism conversion device of impact shock body, reduces weight and volume, improves efficiency, and improve the impact operation power of impact shock body
With the impact resistance of mover.
In order to solve the above-mentioned technical problem, the present invention is included by stator, mover block stamp, detection means, control and driver
Some pieces of permanent magnets are installed with composition, the stator, permanent magnet is that N, S pole are alternately arranged close to mover block stamp side,
The length of permanent magnet is arranged according to the length of mover block stamp and range demands, the two ends of the mover block stamp stroke set stroke pole
The magnet coil of ribbon core, the arrangement mode of coil are installed with extreme position and backhaul extreme position, the mover block stamp
It is one group of cycle arrangement with three according to three-phase A, B, C order；Mover block stamp non-percussion side is provided with detection means, detection
Device is made up of three Hall switch sensors and a lienar for Hall sensor, and three Hall switch sensors are used for
Detection and the relative position of permanent magnet on stator, lienar for Hall sensor are used for detectable limit position to control mover block stamp
Stroke.
Preferably, the size between the Hall sensor of the permanent magnet of the stator, coil and three detection relative positions
Relation is：It is equal sized in the mover direction of motion between the permanent magnet of different magnetic poles, between out of phase mover coil, and
The size of two permanent magnets is equal to the size of three coils, and first coil distance of the Hall sensor away from its nearest neighbours is 3/4
Individual coil dimension, latter two Hall sensor is respectively 1/2 coil dimension, the letter of Hall sensor apart from previous distance
Control and driver number are passed to, power supply size and the direction of three-phase coil is controlled.
The present invention reduces the mechanism conversion device of traditional electrodynamic type impact shock body, reduce weight and volume, improve effect
Rate, and improve the impact operation power of impact shock body and the impact resistance of mover.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is Figure 1A-location A sectional view；
Fig. 3 is permanent magnet installation relation；
Fig. 4 is magnet coil mounting structure figure；
Fig. 5 is plurality of electromagnetic winding wiring schematic diagram；
Fig. 6 is single group coil line schematic diagram；
Fig. 7 is electromagnetic direct-drive formula impact shock body running procedure chart；
Fig. 8 is control program flow chart；
Fig. 9 is solenoid control mode；
Embodiment
Embodiment cited by the present invention, is only intended to help and understands the present invention, should not be construed as to present invention protection model
The restriction enclosed, for those skilled in the art, without departing from the inventive concept of the premise, can also be right
The present invention is made improvements and modifications, and these are improved and modification is also fallen into the range of the claims in the present invention protection.
Electromagnetic direct-drive formula impact shock body of the present invention as depicted in figs. 1 and 2, including shell 1, the first yoke 2 and the second magnetic
Yoke 9, the first permanent magnet 3 and the second permanent magnet 8 and full stroke position 141 and the composition stator department of backhaul extreme position 142
Point；First magnet coil 4 and the second magnet coil 7, mover support 5, extreme position detection sensor 11 and relative position detection
Device 12 constitutes subpart, and wherein extreme position detection sensor 11 and relative position detection sensor 12 is arranged on mover branch
The non-one end being hit of frame 5；Connected between mover and stator by the first guide rail 6 and the second guide rail 10, the first guide rail 6 and second
Guide rail 10 is fixed on the inner side of shell 1, and the sliding block of guide rail is fixed on mover support 5, is realized by the slip of sliding block in orbit
The slip of mover relative stator；One end of shield line drag chain 13 is connected with subpart non-percussion end, the other end be connected to control and
Driver.There are two row's set of permanent magnets on stator, there are two row's magnet coils on mover, be to be arranged symmetrically, cancelled each other with reaching
The abrasion of power, reduction to guide rail between permanent magnet and magnet coil on vertical movement direction.
The arrangement mounting means of permanent magnet is as shown in figure 3, the proper alignment of the first permanent magnet of polylith 3 fixes peace in stationary part
In yoke 2, the first permanent magnet 3 is respectively N poles and the circulation of S poles close to the side of coil during arrangement, i.e., every adjacent two pieces forever
It is different close to the magnetic pole of coil sides for magnet 3.Yoke 2 is fixedly mounted on housing 1, and mounting means can be using shown in Fig. 2
Bolt 15 connect, but be not limited to which.
Mounting means of the magnet coil on mover support is as shown in Figure 4 in subpart.4 points of magnet coil is A, B, C
Three-phase, cycle arrangement is arranged in coil yoke 16, and coil yoke 16 is fixedly mounted on mover support 5, and its mounting means can
Mode is fixedly connected with to use the bolt-and-nut shown in Fig. 4 but be not limited to this, coil is symmetrically distributed in mover support
Both sides.Connected mode between A, B, C three-phase coil is as shown in figure 4, three-phase coil uses the line of Y-shaped connected mode, i.e., three
One end of circle links together, the other end is connected with extraneous driving power supply, and the coil and extraneous driving power supply for belonging to same phase connect
The one end connect links together, and is powered by driving power supply is unified, all A phase coils are connected to the U of driving power supply in such as Fig. 4
Mouthful, B phase coils are connected to V mouths, the C phase coils of driving power supply and are connected to the W mouths of driving power supply.The wiring of single group three-phase coil is shown
It is intended to as shown in fig. 6, coil can also use clockwise, three-phase coil winding direction is consistent using canoe counterclockwise
.
The course of work of electromagnetic direct-drive formula impact shock body is as shown in Figure 7.Extreme position sensing is installed on mover block stamp
Device, installs two extreme position points for being available for limit position sensor to detect on stator.During the original state that works, no matter block stamp
Positioned at any position, start mover backhaul program, its corresponding magnetic pole is now detected by three Hall sensors, is judged to three
The energization direction of phase coil so that each mover block stamp is rushed under that force by the upward active force as shown in position one in Fig. 7
Hammer motion upwards, when reaching upper extreme position, output signal after limit position sensor detection, the program of controller operation is cut
Stroke program is changed to, although now the block stamp direction of motion is upwards, it is opposite direction by electromagnetic force, sees position two in Fig. 7,
Mover slows down until speed is zero (position three) under electromagnetic force, and then mover starts to accelerate fortune downwards under electromagnetic force
Dynamic (position four),, will to avoid impact operation process coil from damaging when mover persistently accelerates to lower limit position (position five)
Three-phase coil is all powered off, and into impact process (position six), resilience after mover impact, limit position sensor detects lower pole
Extreme position (position seven), controller operation program switches to backhaul program, and block stamp enters return stroke, if block stamp is in power cut off delay
Of short duration time (being enough to complete impact process in the time, can be taken as 100ms) is then directly entered backhaul program without resilience.Such as
This circulation realizes that electromagnetic impact vibrating body persistently carries out impact operation.
According to electromagnetic direct-drive formula impact shock body running process setting, control program flow is as shown in figure 8, process is mainly divided
For：Upper electricity, into backhaul program, when detecting backhaul extreme position, runs stroke program, limit position sensor detects punching
During way limit position, power-off enters impact process, and impact process terminates to exceed again by full stroke position or power-off time
Enter backhaul program during a certain value (desirable 100ms).
In backhaul program, three relative position sensors constantly judge its corresponding permanent magnet magnetic pole (sensor lead to
Cross output high level or low level detects that corresponding is S poles or N poles, the fixed position by sensor and three-phase coil is that can determine whether
The corresponding magnetic field of permanent magnet of each phase coil), the corresponding situation according to table 1, supplying corresponding electric current to three-phase coil makes
Son realizes drawback movement.The backhaul of mover judges as shown in table 1.The relative position detection that backhaul judgement table shown in table 1 shows
Relation between sensor output signal and three-phase coil are powered is：The corresponding permanent magnet magnetic of three relative position detection sensors
Extremely N, N, S when, magnetic pole be respectively 0 (representing not Shang electric), N, S after A, B, C three-phase coil are powered；Sensor correspondence magnetic pole be N,
When S, S, magnetic pole is respectively after coil electricity：N、0、S；When sensor correspondence magnetic pole is S, S, S, magnetic pole is distinguished after coil electricity
For：N、S、0；When sensor correspondence magnetic pole is S, S, N, magnetic pole is respectively after coil electricity：0、S、N；Sensor corresponds to magnetic pole
When S, N, N, magnetic pole is respectively after coil electricity：S、0、N；When sensor correspondence magnetic pole is N, N, N, magnetic pole is distinguished after coil electricity
For：S、N、0.
Similarly, in mover block stamp stroke procedure, stroke judges as shown in table 2, three relative position detection sensors pair
The permanent magnet magnetic answered extremely N, N, S when, magnetic pole is respectively N, S, 0 (represents not Shang electric) after A, B, C three-phase coil are powered；Sensor
When correspondence magnetic pole is N, N, N, magnetic pole is respectively after coil electricity：N、0、S；When sensor correspondence magnetic pole is S, N, N, coil electricity
Magnetic pole is respectively afterwards：0、N、S；When sensor correspondence magnetic pole is S, S, N, magnetic pole is respectively after coil electricity：S、N、0；Sensor
When correspondence magnetic pole is S, S, S, magnetic pole is respectively after coil electricity：S、0、N；When sensor correspondence magnetic pole is N, S, S, coil electricity
Magnetic pole is respectively afterwards：0、S、N.
The r of electromagnetic direct-drive formula impact shock body magnet coil in stroke or the operation engineering of backhaul is such as
Shown in Fig. 6.Signal I1, I2, I3 of relative position detection sensor are input to controller, by the judgement of controller, export 6
Control signal (respectively from six interface outputs of O, P, Q, X, Y, Z) is controlled to six IGBT power amplifier tubes.Six power
Amplifier tube is divided into three groups of parallel connections, every group connects for two, and F1 and F2 series connection, F3 and F4 series connection, F5 and F6 connect in such as Fig. 9,
Six IGBT in parallel are using " two or two are powered " mode, every to have two power tubes to be powered in a flash, two work(of every group of series connection simultaneously
Rate amplifier tube only allows a conducting simultaneously.By realize electromagnetic direct-drive formula impact shock body after the power-up backhaul work exemplified by explanation
Pass through control principle.If the magnetic pole that relative position sensor is detected after upper electricity is N, N, S, the not upper electricity of A phase coils, B phase lines
Circle will produce N poles magnetic pole, C phase coils and produce S poles magnetic pole, and the wiring diagram according to Fig. 5, the sense of current should enter B phases from V mouthfuls
Coil, flows out from the W mouths of C phase coils, at this time, it may be necessary to which controller is believed according to three relative position detection sensor inputs in Fig. 7
Tri- ports of P, Z are exported high level signals by number I1, I2, I3, now bis- power amplifier tubes conductings of F3, F6, and electric current is from power supply
Positive pole by power amplifier tube F3 from V mouthful enter B phase coils, then from the W mouths of C phase coils flow through power amplifier tube F6 entrance
The negative pole of coil, mover block stamp drawback movement to three relative position sensors detects that its correspondence magnetic pole is N, S, S, and controller will
P ports high level is changed into low level, while O mouthfuls of low levels are changed into high level, then power tube F1 conductings, F3 cut-offs, and electric current is from U
End enters loop A, flowed out from coil C W mouths, successively mode, and controller is according to the signal of relative position detection sensor, control
The conducting of six power amplifier tubes, you can realize the drawback movement of mover block stamp.
Needed in control flow shown in Fig. 8 read backhaul program and stroke program, backhaul program i.e. as shown in table 1 not
Disconnected carry out backhaul judgement；Stroke program constantly carries out stroke judgement as shown in table 2.
The backhaul program of table 1 judges table
The stroke program of table 2 judges table
Note："●" represents drive signal high potential in Tables 1 and 2, and "-" represents coil without magnetic field or the low electricity of drive signal
Position.
Claims (2)
1. electromagnetic direct-drive formula impact shock body, it is characterised in that including by stator, mover block stamp, detection means（11）, control and
Driver is constituted, and some pieces of permanent magnets are installed with the stator（3,8）, permanent magnet（3,8）Close to mover block stamp side
It is alternately arranged for N, S pole, the length of permanent magnet, the mover block stamp stroke is arranged according to the length of mover block stamp and range demands
Two ends set full stroke position（141）With backhaul extreme position (142), ribbon core is installed with the mover block stamp
Magnet coil（4,7）, the arrangement mode of coil, according to three-phase A, B, C order, is one group of cycle arrangement with three；Mover block stamp
Non-percussion side is provided with relative position detection means（11）, detection means（11）By three Hall switch sensors and one
Lienar for Hall sensor is constituted, and three Hall switch sensors are used for detecting the relative position with permanent magnet on stator, line
Property type Hall sensor be used for detectable limit position to control the stroke of mover block stamp.
2. electromagnetic direct-drive formula impact shock body according to claim 1, it is characterised in that the permanent magnet of the stator（3,
8）, magnet coil（4,7）And the size relationship between the Hall sensor of three detection relative positions is：The permanent magnetism of different magnetic poles
It is equal sized in the mover direction of motion between body, between out of phase mover coil, and the size of two permanent magnets is equal to
The size of three coils, first coil distance of the Hall sensor away from its nearest neighbours is 3/4 coil dimension, latter two Hall
The previous distance of sensor distance is respectively 1/2 coil dimension, and the signal of Hall sensor passes to control and driver,
Control power supply size and the direction of three-phase coil.
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| CN201510275841.8A CN105048758B (en) | 2015-05-26 | 2015-05-26 | Electromagnetic direct-drive formula impact shock body |
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| CN201510275841.8A CN105048758B (en) | 2015-05-26 | 2015-05-26 | Electromagnetic direct-drive formula impact shock body |
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| CN105048758B true CN105048758B (en) | 2017-10-03 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145422A (en) * | 2006-09-13 | 2008-03-19 | Tdk株式会社 | Magnetic path and manufacturing method and device thereof |
| CN101635499A (en) * | 2008-07-25 | 2010-01-27 | 日立汽车系统株式会社 | Circular-shaped linear synchronous motor, electromagnetic suspension and motor-driven steering device using the same |
| CN102522872A (en) * | 2011-12-30 | 2012-06-27 | 深圳大学 | High-frequency short-distance reciprocating motion mechanism of linear motor and control method of high-frequency short-distance reciprocating motion mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3789671B2 (en) * | 1999-02-15 | 2006-06-28 | 三洋電機株式会社 | Linear motor stator and manufacturing method thereof |
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- 2015-05-26 CN CN201510275841.8A patent/CN105048758B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145422A (en) * | 2006-09-13 | 2008-03-19 | Tdk株式会社 | Magnetic path and manufacturing method and device thereof |
| CN101635499A (en) * | 2008-07-25 | 2010-01-27 | 日立汽车系统株式会社 | Circular-shaped linear synchronous motor, electromagnetic suspension and motor-driven steering device using the same |
| CN102522872A (en) * | 2011-12-30 | 2012-06-27 | 深圳大学 | High-frequency short-distance reciprocating motion mechanism of linear motor and control method of high-frequency short-distance reciprocating motion mechanism |
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