CN106894453B - A kind of dynamic strain calibrating installation of foundation pile movable measurement instrument - Google Patents
A kind of dynamic strain calibrating installation of foundation pile movable measurement instrument Download PDFInfo
- Publication number
- CN106894453B CN106894453B CN201510988956.1A CN201510988956A CN106894453B CN 106894453 B CN106894453 B CN 106894453B CN 201510988956 A CN201510988956 A CN 201510988956A CN 106894453 B CN106894453 B CN 106894453B
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- standard
- vibration machine
- tool
- calibrating installation
- strain
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/10—Miscellaneous comprising sensor means
Abstract
A kind of dynamic strain calibrating installation of foundation pile movable measurement instrument belongs to technical field of experiment equipment, it is the dynamic strain reference sensitivity calibrating configuration to carry out foundation pile movable measurement instrument, the device will be completed to standard vibration machine hang upside down, and it is rigidly connected with standard acceler, tool-type strain transducer, tool-type strain transducer is rigidly attached among strain calibrating installation, while guaranteeing that initial static strain amount minimum is installed as far as possible.Dynamic strain calibrating installation structure mainly includes rack and position adjusting mechanism, and rack and projecting frame cooperate supported and suspended standard vibration machine；For adjusting vibration table surface, standard vibration machine and tool-type strain transducer vertically on one wire, it is made of position adjusting mechanism standard vibration machine and standard acceler bindiny mechanism, standard acceler and the back-to-back connection structure of tool-type strain transducer, dismountable flat structure and three-dimensional mobile platform.The apparatus structure is simple and convenient to operate.
Description
Technical field
The present invention relates to a kind of dynamic strain calibrating installations of foundation pile movable measurement instrument, belong to technical field of experiment equipment.
Background technique
Foundation pile movable measurement instrument is mainly used for the performance detection of foundation pile in pile foundation engineering, it is mainly by sensor, adapter, letter
Several parts compositions such as number collector and display controller.The physical quantity of foundation pile movable measurement instrument measurement mainly has: acceleration, moves speed
State power, dynamic strain etc., it can regard the difference of physical quantity, form different measuring systems.
The dynamic strain calibrating installation of foundation pile movable measurement instrument is primarily to carry out the dynamic strain reference sensitivity of foundation pile movable measurement instrument
Calibrating configuration, which will complete to standard vibration machine hang upside down, and pass with standard acceler, tool-type strain
Tool-type strain transducer is rigidly attached among strain calibrating installation, while guaranteeing installation as far as possible by sensor rigid connection
Initial static strain amount is minimum.
Summary of the invention
The purpose of the present invention is: a kind of dynamic strain calibrating installation of foundation pile movable measurement instrument is designed and developed, can satisfy dynamic strain
Reference sensitivity examines and determine prescribed requirement.To achieve the goals above, the present invention is achieved using following technology: a kind of foundation pile is dynamic
The dynamic strain calibrating installation for surveying instrument includes that rack, projecting frame, standard vibration machine, standard vibration machine and standard acceler connect
Connection mechanism, standard acceler, tool-type strain transducer and three-dimensional mobile platform；Reinforcing rib is housed on the inside of rack；
Projecting frame is connected and fixed by one group of bolt with rack；Standard vibration machine carries out hang upside down by projecting frame, and matches
It is fixed there are four briquetting；Pass through one group of bindiny mechanism's rigid connection between standard acceler and standard vibration machine；
Standard acceler is rigidly connected with tool-type strain transducer by stud back-to-back；Above three-dimensional mobile platform
It configures dismountable flat and is used for flexible fastening means formula strain transducer, tool-type strain transducer is made to be rigidly attached at strain inspection
Determine among device, is fixed below three-dimensional mobile platform with framework soleplate.
Structure of the invention can be divided into rack, projecting frame, standard vibration machine, sensor and standard vibration machine bindiny mechanism,
Standard acceler, tool-type strain transducer and three-dimensional mobile platform；Rack is used to support suspension with projecting frame and falls
The standard vibration machine set, hang upside down frame above one group of balanced configuration can up and down adjustment aperture, be able to achieve to above and below projecting shake table
The coarse adjustment of position；Standard vibration machine is for generating dynamic strain amount；Standard vibration machine and standard acceler bindiny mechanism
Can be by the vibration displacement amount vertical transmission of standard vibration machine to standard acceler, it is connected by a pair of of ball head structure
It connects, one end of bulb and standard vibration machine are rigidly connected, and the other end of bulb is rigidly connected with standard acceler；Mark
Quasi- acceleration transducer is rigidly connected with tool-type strain transducer by stud back-to-back, for standard vibration machine to shake
Momentum is equivalent to be transmitted to two sensors；Three-dimensional mobile platform can be realized the thin tuning to xyz axis direction relative position, three-dimensional
Dismountable flat is configured with above mobile station, the two cooperates the relative position that fastening means formula strain transducer can be adjusted flexibly,
It is rigidly mounted at tool-type strain transducer among strain calibrating installation, while guaranteeing that initial static strain amount is installed as far as possible
Reach minimum.
The material that rack of the invention is selected is angle bar；Projecting frame polishes after selecting No. 45 steel cuttings；Bolt selection standard
M8 × 50, sensor and standard vibration machine bindiny mechanism material selection hard aluminium alloy；Standard vibration machine, normal acceleration sensing
Device selects suitable producer to buy according to test requirements document；Three-dimensional mobile platform, which is selected, is able to carry out the mobile displacement of three-axis accurate fine tuning
Platform.
The present invention is to complete the dynamic strain reference sensitivity of foundation pile movable measurement instrument and examining and determine the experiment platform device provided, the dress
It sets structure to be simple and convenient to operate, design parameter is fully able to meet the requirement of dynamic strain reference sensitivity calibrating.
Detailed description of the invention
Fig. 1 is experimental provision structure overall diagram of the invention；
Fig. 2 is experimental provision Plays shake table and sensor connection means figure of the invention.
1: reinforcing rib；2: framework soleplate；3: three-dimensional mobile platform；4: rack；5: standard vibration machine；6: projecting frame；7: spiral shell
Bolt M8 × 50；8: screw hole；9: briquetting；10: bolt；11: standard acceler；12: stud；13: tool-type strain
Sensor；14: hexagon socket head cap screw；15: dismountable flat；16: nut M4；17: steel pole；18: bolt M4；19: upper cover；20:
Upper back cover plate；21: vibration table surface；22: upper steel ball；23: lower head；24: lower steel ball；25: lower back cover plate.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, it is further specific that process, which is made, to be realized to technology of the invention
Description.
As depicted in figs. 1 and 2, the dynamic strain calibrating installation of a kind of foundation pile movable measurement instrument, including organic frame 4,4 side of rack are matched
It is equipped with reinforcing rib 1 and is used to support three-dimensional mobile platform 3 configured with framework soleplate 2 below for reinforcing overall structure, rack 4；Machine
Projecting frame 6 is installed by one group of bolt and nut above frame 4, projecting 6 two sides of frame configured with can the spaced of up and down adjustment open
The bore size in hole, projecting 6 lower plate of frame is suitable for placing inverted standard vibration machine 5, hang upside down the surrounding of 6 lower plate of frame there are
Four apertures install briquetting 9 by aperture and bolt 10, for compressing standard vibration machine 5；Inverted 5 lower section of standard vibration machine
Table top 21 be rigidly connected standard acceler 11 by standard vibration machine 5 and standard acceler bindiny mechanism,
Standard vibration machine 5 connect back cover plate 20 and upper cover 19, upper envelope with the bolt 18 in standard acceler bindiny mechanism
A semi-round ball hole is respectively stayed out inside bottom plate 20 and upper cover 19, centre places upper steel ball 22, is provided with screw hole on upper steel ball 22, passes through
Screw hole on upper steel ball 22 is connected to one end of steel pole 17, and the other end of steel pole 17 connects lower steel ball 24, under lower steel ball 24 is located at
A semi-round ball hole, 23 He of lower head are respectively stayed out inside the inside of end socket 23 and lower back cover plate 25, lower head 23 and lower back cover plate 25
Lower back cover plate 25 is connected by a pair of bolts；Lower back cover plate 25 connects standard acceler 11 by stud；Standard
Acceleration transducer 11 is by 12 fastening means formula strain transducer 13 of stud, tool-type strain transducer 13 and detachable
Plate 15 is rigidly connected；Dismountable flat 15 is placed on 3 top of three-dimensional mobile platform, dismountable flat 15 and three-dimensional mobile platform
It is fastened between 3 by 4 hexagon socket head cap screws, by adjusting the adjustable dismountable flat 15 of three-dimensional mobile platform 3 and tool
The relative position of xyz axis direction between formula strain transducer 13 makes vibration table surface 21, bindiny mechanism, 5 and of standard vibration machine
Tool-type strain transducer 13 on a vertical line, while making tool-type strain transducer be rigidly mounted at strain calibrating dress
Centre is set, while guaranteeing that installing initial static strain amount reaches minimum as far as possible.
Claims (3)
1. a kind of dynamic strain calibrating installation of foundation pile movable measurement instrument, it includes rack (4), projecting frame (6), standard vibration machine (5), mark
Quasi- shake table (5) and standard acceler (11) bindiny mechanism, standard acceler (11), tool-type strain sensing
Device (13) and three-dimensional mobile platform (3), it is characterised in that: reinforcing rib (1) is housed on the inside of the rack (4)；Projecting frame (6)
It is connected and fixed by one group of bolt (7) with rack (4)；Standard vibration machine (5) be inverted by projecting frame (6) outstanding
It hangs, and briquetting (9) are fixed with there are four；Pass through one group between standard acceler (11) and standard vibration machine (5)
Bindiny mechanism's rigid connection；Standard acceler (11) and tool-type strain transducer (13) are carried on the back by stud (12)
Backrest rigid connection；Three-dimensional mobile platform (3) configures dismountable flat (15) for flexible fastening means formula strain sensing above
Device (13), make tool-type strain transducer (13) be rigidly attached at strain calibrating installation among, three-dimensional mobile platform (3) below with
Framework soleplate (2) is fixed；
The standard vibration machine (5) with standard acceler (11) bindiny mechanism is connect by a pair of of ball head structure, ball
Back cover plate (20) and upper cover (19) in bolt (18) connection in header structure, upper back cover plate (20) and upper cover (19) are internal each
A semi-round ball hole is stayed out, centre is placed upper steel ball (22), is provided with screw hole on upper steel ball (22), is passed through the screw hole on upper steel ball (22)
It is connected to one end of steel pole (17), respectively stays out a semi-round ball hole, lower steel ball (24) inside lower head (23) and lower back cover plate (25)
Positioned at the inside of lower head (23) and lower back cover plate (25), the other end of steel pole (17) connects lower steel ball (24), lower head (23)
It is connected with lower back cover plate (25) by a pair of bolts, lower back cover plate (25) connects standard acceler by stud
(11), upper back cover plate (20) connection standard vibration machine (5).
2. a kind of dynamic strain calibrating installation of foundation pile movable measurement instrument as described in claim 1, it is characterised in that: the projecting frame
(6) top one group of balanced configuration can up and down adjustment aperture.
3. a kind of dynamic strain calibrating installation of foundation pile movable measurement instrument as described in claim 1, it is characterised in that: the three-dimensional shifting
Moving platform (3) can cooperate the relative position that fastening means formula strain transducer (13) can be adjusted flexibly with dismountable flat (15),
It is rigidly mounted at tool-type strain transducer (13) among strain calibrating installation, while guaranteeing that installation is initially quiet as far as possible and answering
Variable reaches minimum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510988956.1A CN106894453B (en) | 2015-12-18 | 2015-12-18 | A kind of dynamic strain calibrating installation of foundation pile movable measurement instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510988956.1A CN106894453B (en) | 2015-12-18 | 2015-12-18 | A kind of dynamic strain calibrating installation of foundation pile movable measurement instrument |
Publications (2)
| Publication Number | Publication Date |
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| CN106894453A CN106894453A (en) | 2017-06-27 |
| CN106894453B true CN106894453B (en) | 2018-12-11 |
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| CN201510988956.1A Active CN106894453B (en) | 2015-12-18 | 2015-12-18 | A kind of dynamic strain calibrating installation of foundation pile movable measurement instrument |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036855A (en) * | 2018-01-09 | 2018-05-15 | 广东电网有限责任公司电力科学研究院 | A kind of table top assembly |
| CN113091595B (en) * | 2021-04-02 | 2023-03-24 | 浙江省计量科学研究院 | Tool type strain sensor dynamic and static measuring device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4359890A (en) * | 1979-07-09 | 1982-11-23 | Societe Anonyme France-Atlas | Apparatus for testing the load-bearing properties of a foundation |
| CN201335773Y (en) * | 2008-10-17 | 2009-10-28 | 广州市计量检测技术研究院 | Dynamic calibrating device of portable braking tester |
| CN203455183U (en) * | 2013-09-29 | 2014-02-26 | 华南理工大学 | Reaction frame platform with movable bottom backing plate |
| CN204202810U (en) * | 2014-09-25 | 2015-03-11 | 黑龙江华安精益计量技术研究院有限公司 | Dynamic force calibrating installation |
| CN205224131U (en) * | 2015-12-18 | 2016-05-11 | 中国计量学院 | Foundation pile moves dynamic strain calibrating installation who surveys appearance |
-
2015
- 2015-12-18 CN CN201510988956.1A patent/CN106894453B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4359890A (en) * | 1979-07-09 | 1982-11-23 | Societe Anonyme France-Atlas | Apparatus for testing the load-bearing properties of a foundation |
| CN201335773Y (en) * | 2008-10-17 | 2009-10-28 | 广州市计量检测技术研究院 | Dynamic calibrating device of portable braking tester |
| CN203455183U (en) * | 2013-09-29 | 2014-02-26 | 华南理工大学 | Reaction frame platform with movable bottom backing plate |
| CN204202810U (en) * | 2014-09-25 | 2015-03-11 | 黑龙江华安精益计量技术研究院有限公司 | Dynamic force calibrating installation |
| CN205224131U (en) * | 2015-12-18 | 2016-05-11 | 中国计量学院 | Foundation pile moves dynamic strain calibrating installation who surveys appearance |
Non-Patent Citations (1)
| Title |
|---|
| 基桩动态测量仪;国家质量技术监督局;《中华人民共和国国家计量检定规程 JJG930-1998》;19981001;第1-9页 * |
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| CN106894453A (en) | 2017-06-27 |
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