CN103114614A - Pile foundation dynamic load loading vibration exciter - Google Patents
Pile foundation dynamic load loading vibration exciter Download PDFInfo
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- CN103114614A CN103114614A CN2013100477209A CN201310047720A CN103114614A CN 103114614 A CN103114614 A CN 103114614A CN 2013100477209 A CN2013100477209 A CN 2013100477209A CN 201310047720 A CN201310047720 A CN 201310047720A CN 103114614 A CN103114614 A CN 103114614A
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Abstract
Disclosed is a pile foundation dynamic load loading vibration exciter. The pile foundation dynamic load loading vibration exciter comprises a metal U-shaped blocking, a motor, an eccentric wheel, a bearing, a loading shaft and a spring. The motor is connected with a motor frequency converter. The eccentric wheel is driven to revolve by a motor shaft of the motor. A bearing is arranged on the outer edge of the eccentric wheel. The bearing is fixed at one end of the loading shaft through the metal U-shaped blocking. The spring is arranged at the other end of the loading shaft. The pile foundation dynamic load loading vibration exciter is simple in structure, simple in principle, convenient to operate, low in cost, economical, suitable for use, easy to popularize and suitable for industry production.
Description
Technical field
The invention belongs to technical field of civil engineering, relate in particular to a kind of pile foundation dynamic load and load vibrator, can apply dynamic load to pile foundation or composite foundation, the characteristic of research pile foundation or the force and deformation of composite foundation under dynamic loading.
Background technology
Current pile foundation and composite foundation are all carried out model testing on the Research foundation of the force and deformation proterties under the effect of dynamic load such as wave load, traffic loading etc.These loads can be with simply simulating with sine wave by simplifying, and what the simulation of current offset of sinusoidal ripple was adopted basically is hydraulic servo loading system.This charger principle is more complicated, and equipment is larger, can only be used for the laboratory load test, can not at will move to be used for on-the-spot the loading, and price is too high, and every needs hundreds of thousands first, implements comparatively difficulty.
Summary of the invention
In order to solve above-mentioned technological deficiency, the invention provides a kind of simple in structurely, principle is simple, and is easy to operate, and the pile foundation dynamic load that cost is low loads vibrator.
The technical solution adopted in the present invention is: a kind of pile foundation dynamic load loads vibrator, comprise the U-shaped card of metal, motor, eccentric wheel, bearing, loading axle and spring, described motor is connected with the motor frequency conversion device, the motor shaft band movable eccentric wheel rotation of the motor shaft of motor, the eccentric wheel outer rim arranges a bearing, bearing fastens at an end that loads axle by metal is U-shaped, and the other end that loads axle arranges spring.
The U-shaped card of described metal is steel material.
The bottom of described metal U-shaped card is bolted on and loads on axle.
Described loading axle is provided with girth member.
One end of described spring loads on axle by being arranged on of iron hoop wound form, and the other end is arranged on pile foundation.
One end of described spring is enclosed within by boss and loads on axle, and the other end is arranged on pile foundation.
Described bearing inner circle and eccentric wheel tight fit.
Described bearing outer rim and the U-shaped cartoon of metal are crossed the bolt compression and are realized tight fit.
Beneficial effect of the present invention:
1) the invention provides a kind of to pile foundation or composite foundation model dynamic load charger, can to pile foundation or composite foundation apply vertical or level to the dynamic load that changes of sinusoidal wave rule, analyze and the characteristic of research pile foundation or the force and deformation of composite foundation under dynamic loading;
2) installation of the eccentric wheel external bearings of apparatus of the present invention, reduced rubbing action to greatest extent, the measurement error of avoiding frictional resistance to cause; With metal U-shaped card, bearing, eccentric wheel are connected with following loading axle, have avoided in the dynamic load loading procedure wearing and tearing of all parts have been increased application life; The installation of spring adopts punching to connect, and is arranged on the boss that loads axle, can change by the spring of changing different-stiffness sinusoidal wave amplitude;
3) the present invention is simple in structure, and conveniently moving can be for the model testing of indoor or outdoors, and principle is simple, and is easy to operate, and with low cost, economic and practical, is easy to promote, and is fit to suitability for industrialized production.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is structure side view of the present invention;
Fig. 3 is that the present invention is used for composite foundation loading schematic diagram;
To be the present invention apply the vertical load schematic diagram to the stake top to Fig. 4;
To be the present invention apply the horizontal loading schematic diagram to the stake top to Fig. 5.
Be labeled as in figure: 1, metal U-shaped card, 2, motor shaft, 3, eccentric wheel, 4, bearing, 5, bolt, 6, load axle, 7, spring, 8, bolt hole, 9, fastening devices, 10, boss, 11, motor, 12, motor frequency conversion device, 13, load plate, 14, bed course, 15, composite foundation, 16, Model Pile.
The specific embodiment
Below in conjunction with description of drawings and the specific embodiment, invention is further illustrated.As shown in the figure, a kind of pile foundation dynamic load loads vibrator, comprise the U-shaped card 1 of metal, motor 11, eccentric wheel 3, bearing 4, load axle 6 and spring 7, described motor 11 is connected with motor frequency conversion device 12, motor shaft 2 band movable eccentric wheel 3 rotations of the motor shaft 2 of motor 11, eccentric wheel 3 outer rims arrange a bearing 4, and bearing 4 is fixed on an end that loads axle 6 by the U-shaped card 1 of metal, and the other end that loads axle 6 arranges spring 7.The U-shaped card 1 of described metal is No. 45 carbon constructional quality steels for steel material.The bottom of described metal U-shaped card 1 is fixed on by bolt 5 and loads on axle 6.Described loading axle 6 is provided with girth member 9.One end of described spring 7 is enclosed within on loading axle 6 by boss 10 location, and the other end is arranged on pile foundation.Described bearing 4 inner circles and eccentric wheel 3 tight fits.Described bearing 4 outer rims and U-shaped card 1 compress by bolt 5 and realize tight fit.
During the pile foundation model testing, namely apply at Model Pile 16 tops vertical or level to dynamic load, eccentric wheel 3 rotates around the axle center under the drive of motor 11, band dynamic bearing 4 rotates.Bearing 4 outsides have a U-shaped cartoon to cross bolt 5 to be connected with following loading axle 6, and the moving axle 6 that loads of U-shaped cassette tape moves up and down, and realize stake top or stake side are applied by the spring 7 of bottom being similar to sinusoidal wave dynamic load.The change of loading velocity realizes by the rotating speed that motor frequency conversion device 12 is controlled motors 11, and the amplitude of the stiffness change sine wave of the size of load application by adjusting spring 7 realizes.At eccentric wheel 3 outsides installation bearings 4, reduced to greatest extent rubbing action; With a metal U-shaped card 1, bearing, eccentric wheel 3 are connected with following loading axle 6, have avoided in the loading procedure wearing and tearing to all parts.The size of eccentric wheel 3 bias can realize by the size of adjusting OA and the angle α of vertical direction, and when α=0 °, eccentric throw is maximum, when α=180 °, and the eccentric throw minimum.In the process that loads by pasting at the foil gauge of pile body and the performance of the bearing capacity of the delta data research pile foundation of the testing elements such as pressure cell in being embedded in soil or composite foundation.The present invention can also be used for applying of composite foundation dynamic load, as long as put lastblock load plate 13 on composite foundation 15 end faces, spring 7 and load plate 13 are coupled together to be got final product, when eccentric wheel rotates, drive loading axle 6 and be subjected to displacement at vertical direction, apply the dynamic load that changes by sine wave for load plate 13 by spring 7.Therefore the present invention is having broad application prospects in field of civil engineering at present.
Claims (7)
1. a pile foundation dynamic load loads vibrator, it is characterized in that: comprise the U-shaped card of metal (1), motor (11), eccentric wheel (3), bearing (4), load axle (6) and spring (7), described motor (11) is connected with motor frequency conversion device (12), motor shaft (2) band movable eccentric wheel (3) rotation of motor (11), eccentric wheel (3) outer rim arranges a bearing (4), bearing (4) is fixed on an end that loads axle (6) by the U-shaped card of metal (1), the other end that loads axle (6) arranges spring (7).
2. a kind of pile foundation dynamic load loads vibrator according to claim 1, and it is characterized in that: the U-shaped card of described metal (1) is steel material.
3. a kind of pile foundation dynamic load loads vibrator according to claim 1, it is characterized in that: the bottom of described metal U-shaped card (1) is fixed on by bolt (5) and loads on axle (6).
4. a kind of pile foundation dynamic load loads vibrator according to claim 1, and it is characterized in that: described loading axle (6) is provided with girth member (9).
5. a kind of pile foundation dynamic load loads vibrator according to claim 1, it is characterized in that: an end of described spring (7) is enclosed within by boss (10) and loads on axle (6), and the other end is arranged on pile foundation.
6. a kind of pile foundation dynamic load loads vibrator according to claim 1, it is characterized in that: described bearing (4) inner circle and eccentric wheel (3) tight fit.
7. a kind of pile foundation dynamic load loads vibrator according to claim 1, it is characterized in that: described bearing (4) outer rim and the U-shaped card of metal (1) compress by bolt (5) and realize tight fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310047720.9A CN103114614B (en) | 2013-02-06 | 2013-02-06 | Pile foundation dynamic load loading vibration exciter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310047720.9A CN103114614B (en) | 2013-02-06 | 2013-02-06 | Pile foundation dynamic load loading vibration exciter |
Publications (2)
| Publication Number | Publication Date |
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| CN103114614A true CN103114614A (en) | 2013-05-22 |
| CN103114614B CN103114614B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310047720.9A Expired - Fee Related CN103114614B (en) | 2013-02-06 | 2013-02-06 | Pile foundation dynamic load loading vibration exciter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758159A (en) * | 2014-01-02 | 2014-04-30 | 河南科技大学 | Model pile foundation load simulation experimental device |
| CN103792060A (en) * | 2014-01-27 | 2014-05-14 | 河南科技大学 | Double-direction vibration resistant test bed |
| CN103821185A (en) * | 2014-02-11 | 2014-05-28 | 河南科技大学 | Model pile foundation with horizontal dynamic loading devices |
| CN103821186A (en) * | 2014-02-11 | 2014-05-28 | 河南科技大学 | Pile foundation model test device in frozen soil environment |
| CN107884291A (en) * | 2017-10-16 | 2018-04-06 | 太原理工大学 | A kind of rock axial direction sine and cosine adds unloading single axis test machines device |
| CN116773372A (en) * | 2023-08-24 | 2023-09-19 | 中国海洋大学 | Transmission mechanism performance detection device and method of conveying device |
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| CN202216881U (en) * | 2011-07-26 | 2012-05-09 | 西南交通大学 | Fastener loading corrosion test device for high-speed rail |
| CN202247966U (en) * | 2011-07-25 | 2012-05-30 | 余闯 | Model test device for simulating pile-supported embankment under complex load condition |
| CN203096778U (en) * | 2013-02-06 | 2013-07-31 | 河南科技大学 | Pile foundation dynamic load loading vibration exciter |
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| CN86107964A (en) * | 1986-11-27 | 1987-07-08 | 冶金部建筑研究总院 | Testing pile by resonating |
| JP2004124611A (en) * | 2002-10-04 | 2004-04-22 | Wedge Corp | Load transmitting device |
| CN101329238A (en) * | 2007-06-20 | 2008-12-24 | 河南科技大学 | Load charger applied to friction test machine |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758159A (en) * | 2014-01-02 | 2014-04-30 | 河南科技大学 | Model pile foundation load simulation experimental device |
| CN103758159B (en) * | 2014-01-02 | 2015-08-12 | 河南科技大学 | A kind of model pile foundation load simulation experimental device |
| CN103792060A (en) * | 2014-01-27 | 2014-05-14 | 河南科技大学 | Double-direction vibration resistant test bed |
| CN103792060B (en) * | 2014-01-27 | 2017-01-11 | 河南科技大学 | Double-direction vibration resistant test bed |
| CN103821185A (en) * | 2014-02-11 | 2014-05-28 | 河南科技大学 | Model pile foundation with horizontal dynamic loading devices |
| CN103821186A (en) * | 2014-02-11 | 2014-05-28 | 河南科技大学 | Pile foundation model test device in frozen soil environment |
| CN103821185B (en) * | 2014-02-11 | 2016-08-17 | 河南科技大学 | Model pile foundation with horizontal power charger |
| CN107884291A (en) * | 2017-10-16 | 2018-04-06 | 太原理工大学 | A kind of rock axial direction sine and cosine adds unloading single axis test machines device |
| CN107884291B (en) * | 2017-10-16 | 2020-12-11 | 太原理工大学 | Rock axial sine and cosine loading and unloading single-shaft testing machine device |
| CN116773372A (en) * | 2023-08-24 | 2023-09-19 | 中国海洋大学 | Transmission mechanism performance detection device and method of conveying device |
| CN116773372B (en) * | 2023-08-24 | 2023-10-31 | 中国海洋大学 | Transmission mechanism performance detection device and method of conveying device |
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| CN103114614B (en) | 2014-12-10 |
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Granted publication date: 20141210 Termination date: 20160206 |