CN2263136Y - Electromagnetic pile-driver - Google Patents
Electromagnetic pile-driver Download PDFInfo
- Publication number
- CN2263136Y CN2263136Y CN 96243360 CN96243360U CN2263136Y CN 2263136 Y CN2263136 Y CN 2263136Y CN 96243360 CN96243360 CN 96243360 CN 96243360 U CN96243360 U CN 96243360U CN 2263136 Y CN2263136 Y CN 2263136Y
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- CN
- China
- Prior art keywords
- coil
- yoke
- connector
- controller
- pile driver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an electromagnetic pile driver which is composed of a hammer head and a driving system. The hammer head is composed of an upper sheath, a yoke and connectors. The inner part of the yoke which is cylindrical and hollow has coils and an armature, and the side wall of the connector is relatively provided with two holes in which a photoelectric sensor is installed. The driving system which is composed of a charging unit, a capacitor bank, a switch, a controller, etc., can periodically supply the coils with pulse current, so that the hammer head can be in a state of continuously working, and the working frequency and the impact force of the pile driver are adjusted. The utility model has the advantages of high efficiency, no noise, no pollution, long service life, convenient construction, low cost and short construction period.
Description
The utility model relates to a kind of new-type pile driver---electromagnetism pile driver, and it drives with electromagnetic force, belongs to the construction machinery class.
The piling machinery that China uses in construction at present mainly contains two kinds of diesel oil monkey driver and vibration hammer pile sinking machines.Cartridge type diesel hammer in the diesel oil monkey driver is equivalent to a two cylinder diesel engine, and the course of work is suction, pressure, quick-fried, four strokes of row.Because the restriction of the working method of self, its noise is serious, and vibration is big, and the waste gas of discharge causes serious pollution again.The vibrating hammer of vibration hammer pile sinking machine is to utilize vibrator of Motor Drive, make it produce vertical vibration power, force pile body to produce dither, reduced the frictional resistance of soil and pile body surface, make the stake can be in the effect of deadweight or an additional less pressure sinks to burying, but also noise is higher for it, vibrates greatlyyer, only is applicable to the soil layer of soft pine.Also having a kind of hydraulic pressure monkey driver, is to drive the impact part by the double-acting type oil hydraulic cylinder, though its performance is better, pollute smaller, cost height, domestic less use.
The purpose of this utility model provides a kind of new-type electromagnetism pile driver, and it can overcome the pollution of noise, waste gas, reduces vibration, reduces cost, and improves effect.
For achieving the above object, the solution that the utility model is taked is: with drive coil, yoke, armature, sheath, the first-class composition tup of connection; Use charger, the programmable logic controller of impulse capacitor group, switch, conduct control and holding circuit etc. is formed drive system.
Tup partly is actually linear electric motors, and it can have several working ways, and in fact its operating principle is exactly the application of Faradic electricity magnetic induction theorem.When drive coil passes to certain pulsewidth, during the electric current of certain amplitude, produce pulsed magnetic field around the coil, armature is magnetized simultaneously, under the effect of coil magnetic field, armature is attracted to motion, and the momentum of armature becomes the momentum of coil, coil is connected as a single entity by connector and pile body, impacts pile body and moves downward.Armature moves upward to certain altitude, and the armature center line overlaps with coil centerline, and the coil surrounding magnetic field decays to 0, armature rises to the summit and becomes the movement of falling object, pile body is produced the two-hit effect, in actual use, can control armature and pile body directly not clashed into, thereby abate the noise.If periodically pass to pulse current to drive coil by above-mentioned working method, will make tup enter continuous duty, its operating frequency has related parameter to regulate according to instructions for use by change.Another kind of working method is to save the capacitor group, resembles direct employing three-phase alternating current the Daepori three-way motor, allows tup be operated in the dither state.
Charger in the drive system, the impulse capacitor group is equipped with corresponding capacity according to the model specification of pile driver; Contact capacity decides according to the size of operating voltage and electric current, because transient power was bigger when the electromagnetism pile driver was worked under the pulsed drive state, general electrical network is difficult to bear, so adopt the impulse capacitor group as energy-storage travelling wave tube, it both can be operated in filter state, can also be operated in the charge and discharge state.When the capacitor group was operated in filter state, in fact switch played a part copped wave, and at this moment the turn-off capacity of switch is eager to excel; And when being operated in charging and discharging state, switch just not have the requirement of shutoff.Can be with controllable silicon or high power module as switch element.Programmable logic controller mainly contains following effect: the 1) break-make of trigger switch; 2) detect the signal that tup part photoelectric sensor provides, regulate and trigger frequency; 3) detect the charging voltage of capacitor by divider; 4) fault detect of charger and protection.
The operating current pulsewidth of the utility model electromagnetism pile driver is about a few ms to tens ms, and di/dt is little.Peak point current also has only 2～3KA by the pile driver index of existing maximum specification, the about 3KV of operating voltage, the backward voltage of capacitor discharge that main is is smaller, be operated in filter state and do not have Kickback voltage, this is for the working life that prolongs capacitor, and the requirement that reduces switch element is vital.
In the development and experiment of level Four coilgun, utilize high permeability material to make armature, level Four is quickened its average electrical efficient can reach 53%, and efficient at the highest level surpasses 70%; Utilizing Electromagnetic Drive Technology to quicken in the reciprocating simulated experiment of armature, the armature operating frequencies on 2 meters long tracks that drive about 200 grams reach 200 times/minute, and continuous firing for a long time, efficient about 30%.These two the key technical indexes of electrical efficiency in the above-mentioned work and operating frequency near electromagnetism pile driver needs in actual use, also can further improve by optimizing.
Compare with pile driver in the market, the price of electromagnetism pile driver of the present utility model is slightly higher, but it has the effect height, noiselessness, pollution-free, the life-span is long, and impact force can be regulated, and easy construction, multiple superiority such as cost is low, and the duration is short, in addition, traditional pile driver only has the function of piling, and the test job of stake will be carried out separately in addition.Electromagnetism pile driver of the present utility model can promptly carry out the test job of pile body after stake is accomplished fluently, not only saved expense, and shortened the duration.
Below in conjunction with accompanying drawing, the utility model electromagnetism pile driver is described in further detail.
Accompanying drawing 1 is the utility model electromagnetism pile driver tup part-structure figure;
Accompanying drawing 2 is the utility model electromagnetism pile driver drive system connection layout.
As shown in Figure 1, the structure of electromagnetism pile driver tup is: the bottom at upper jacket (1) is connected with yoke (3), there is coil (4) inside of yoke (3), the bottom of yoke (3) is connected with connector (5), have two holes (9) on the sidewall of connector (5) relatively, photoelectric sensor (6) is wherein arranged in the hole, photoelectric sensor (8) is arranged in another hole, connector (5) is fixed on the upper end of pile body (7); Upper jacket (1), yoke (3), coil (4) and connector (5) they are the Cylinder of hollow all, during connection, their vertical center line all coincides together; In the inside of coil (4) armature (2) is arranged, armature (2) is the easy on and off motion in the internal cavities of upper jacket (1), coil (4) and connector (5).
In electromagnetism pile driver drive system connection layout shown in Figure 2, three-phase alternating current (B) is connected on the charger (11), and charger (11) links to each other with programmable logic controller (10), and two lead-out wires are arranged, one ground connection, and it two is connected on the A pin of switch (V); Capacitor group (C) and resistance R
1, R
2The divider that constitutes is connected in parallel on two lead-out wires of charger (11); The G pin of switch (V) connects controller (10), and the K pin connects the drive coil (4) of tup; The other end ground connection of drive coil (4); Resistance R
1And R
2Contact link to each other with controller (10) again; Photoelectric sensor (6) also links to each other with controller (10) with (8).
The course of work of the utility model electromagnetism pile driver is: programmable logic controller (10) is by resistance R
1, R
2The divider that constitutes detects the charging voltage of capacitor group (C), when the voltage of capacitor group (C) reaches setting, controller (10) trigger switch (V) conducting, circuit passes to certain pulsewidth to drive coil (4), the electric current of certain amplitude, coil (4) produces pulsed magnetic field around it, armature (2) is magnetized simultaneously, and under the effect in coil (4) magnetic field, move upward, the momentum of armature (2) becomes the momentum of coil (4), because of coil (4) is connected as a single entity by connector (5) and pile body (7), promptly impact pile body (7) and move downward.Armature (2) moves upward to certain altitude, controller (10) turn-offs switch (V), coil (4) surrounding magnetic field decays to 0, armature (2) rises to the summit and becomes the movement of falling object, pile body (7) is produced the two-hit effect, in actual use, can control armature (2) and pile body (7) directly not clashed into, thereby abate the noise.When armature (2) when dropping to certain position, controller (10) obtains feedback signal by photoelectric sensor (6) and (8), i.e. trigger switch (V) conducting once more begins again second work period carried out in coil (4) energising.Periodically pass to pulse current by above-mentioned working method, make pile driver enter continuous duty to drive coil (4).
Description of drawings: 1, upper jacket; 2, armature; 3, yoke; 4, drive coil; 5, connect Head; 6, photoelectric sensor; 7, pile body; 8, photoelectric sensor; 9, hole; 10, programmable control Device processed; 11, charger; B, three-phase alternating current; V, switch; C, capacitor group; R1、R
2, Resistance.
Claims (2)
1. electromagnetism pile driver of being made up of pile body, tup, upper jacket etc. is characterized in that:
A. the bottom at Cylinder shape upper jacket is connected with yoke, and there is coil the inside of yoke, and the bottom of yoke is connected with connector, have two holes on the sidewall of connector relatively, photoelectric sensor all is housed in each hole, and connector is fixed on the upper end of pile body, and armature is arranged in the coil;
B. three-phase alternating current connects charger, and charger connects programmable logic controller, and draws two lead-out wires, and a ground connection is on the A pin that is connected on switch; The G pin of switch connects controller, and the K pin connects the drive coil of tup; The other end ground connection of drive coil; The divider of capacitor group and two resistance formations is connected in parallel on two lead-out wires of charger; The contact of two resistance links to each other with controller; Two photoelectric sensors also link to each other with controller.
2. pile driver as claimed in claim 1 is characterized in that described upper jacket, yoke, coil and connector all are the Cylinders of hollow, and during connection, its vertical center line all coincides together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96243360 CN2263136Y (en) | 1996-12-10 | 1996-12-10 | Electromagnetic pile-driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96243360 CN2263136Y (en) | 1996-12-10 | 1996-12-10 | Electromagnetic pile-driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2263136Y true CN2263136Y (en) | 1997-09-24 |
Family
ID=33917032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96243360 Expired - Fee Related CN2263136Y (en) | 1996-12-10 | 1996-12-10 | Electromagnetic pile-driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2263136Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532841A (en) * | 2014-12-10 | 2015-04-22 | 马人欢 | Electromagnetic building pile driver |
| CN111705797A (en) * | 2020-05-26 | 2020-09-25 | 广东精铟海洋工程股份有限公司 | Pile sinking and piling system and pile sinking and piling construction method using same |
| CN113739843A (en) * | 2021-07-29 | 2021-12-03 | 武汉船用机械有限责任公司 | State monitoring system and state monitoring method for electromagnetic pile hammer |
| CN114457799A (en) * | 2022-02-24 | 2022-05-10 | 中天科技集团海洋工程有限公司 | Piling noise reduction device for offshore wind power |
-
1996
- 1996-12-10 CN CN 96243360 patent/CN2263136Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532841A (en) * | 2014-12-10 | 2015-04-22 | 马人欢 | Electromagnetic building pile driver |
| CN104532841B (en) * | 2014-12-10 | 2016-05-25 | 山东九强路桥有限公司 | Electromagnetism building piling machine |
| CN111705797A (en) * | 2020-05-26 | 2020-09-25 | 广东精铟海洋工程股份有限公司 | Pile sinking and piling system and pile sinking and piling construction method using same |
| CN113739843A (en) * | 2021-07-29 | 2021-12-03 | 武汉船用机械有限责任公司 | State monitoring system and state monitoring method for electromagnetic pile hammer |
| CN114457799A (en) * | 2022-02-24 | 2022-05-10 | 中天科技集团海洋工程有限公司 | Piling noise reduction device for offshore wind power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |