CN108869489B - Device for quickly and accurately positioning strain gauge pasting position of circular model pile - Google Patents
Device for quickly and accurately positioning strain gauge pasting position of circular model pile Download PDFInfo
- Publication number
- CN108869489B CN108869489B CN201811086628.2A CN201811086628A CN108869489B CN 108869489 B CN108869489 B CN 108869489B CN 201811086628 A CN201811086628 A CN 201811086628A CN 108869489 B CN108869489 B CN 108869489B
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- Prior art keywords
- strain gauge
- horizontal
- model pile
- gland
- positioning
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- 210000004907 gland Anatomy 0.000 claims abstract description 22
- 238000003825 pressing Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 6
- 239000011888 foil Substances 0.000 description 10
- 238000005452 bending Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a device for quickly and accurately positioning a strain gauge pasting position of a circular model pile, which belongs to the technical field of geotechnical engineering physical model tests and comprises a supporting seat which is arranged below the horizontally placed model pile and is provided with a cambered surface on a supporting surface, a gland which is arranged above the model pile and is provided with a C-shaped cross section, a line drawing slide block and a strain gauge positioning slide block, wherein the top of the gland is a horizontal slide rail which is covered on the model pile, the gland is covered on the supporting seat, and horizontal scale marks are arranged on the end surfaces of connecting flanks; the horizontal sliding rail is provided with a line drawing sliding block or a strain gauge positioning sliding block, the middle part of the horizontal sliding rail is provided with a patch groove extending longitudinally along the horizontal sliding rail, the horizontal sliding rail is provided with double patch size scales, and the outer side of the upper part of the connecting flank is provided with a single patch size scale. The invention can rapidly and accurately determine the attaching position of the strain gauge on the circular model pile.
Description
Technical Field
The invention belongs to the technical field of geotechnical engineering physical model tests, and particularly relates to an auxiliary device for manufacturing a model pile.
Background
In geotechnical engineering physical model tests, the measurement of bending moment and axial force of a model pile is an effective means for carrying out pile body deformation and internal stress research. The sticking of the resistance strain gauge on the pile body is a common method for measuring the axial force, bending moment, frictional resistance and the like of the pile body by an indoor model test. The basic requirements for attaching the strain gage are: 1) The three-dimensional space is necessarily arranged at 3 points, 6 points, 9 points and 12 points in equal parts in the annular direction; 2) The strain gauge must be arranged axially; 3) The strain gages distributed on the same axis must be equally spaced. How to accurately draw four bisectors along the axial direction on the surface of the model pile and how to quickly and accurately determine the patch position on the four bisectors becomes a problem to be solved in the test preparation stage, which directly affects the accuracy and speed of the patch, and further affects the accuracy and progress of the test.
Disclosure of Invention
The invention provides a device for quickly and accurately positioning the sticking position of a strain gauge for a circular model pile, which aims to solve the technical problems in the prior art.
The invention adopts the technical proposal for solving the technical problems in the prior art that: the device comprises a bearing seat, a gland, a line drawing slide block and a strain gauge positioning slide block, wherein the bearing seat is arranged below a horizontally placed model pile, the bearing surface of the bearing seat is an arc surface, the gland is arranged above the model pile, the cross section of the gland is C-shaped, the line drawing slide block and the strain gauge positioning slide block are arranged on the top of the gland, the horizontal slide rail is provided with a horizontal slide rail which is pressed on the model pile, the lower surface of the horizontal slide rail is provided with a pressing arc surface which is matched with the model pile, two sides of the horizontal slide rail are respectively provided with a connecting flank, each connecting flank is provided with at least two connecting long holes which extend along the up-down direction, the gland is buckled on the bearing seat, the connecting flank is locked on the bearing seat by adopting a screw, and the screw is arranged in the connecting long holes in a penetrating way; the end face of the connecting flank is provided with horizontal scale marks; be equipped with on the horizontal slide rail the setting-out slider or the foil gage positioning slider the horizontal middle part of setting-out slider is equipped with the pen insertion hole the middle part of foil gage positioning slider is equipped with a foil gage positioning hole one side of foil gage positioning slider is equipped with the pointer the horizontal slide rail middle part is equipped with along its vertically extended paster groove, the paster groove is located the pen insertion hole with the below of foil gage positioning hole, the width of paster groove is 2 times foil gage width be equipped with biplate paster size scale on the horizontal slide rail the upper portion outside of connecting the flank be equipped with the monolithic paster size scale of pointer alignment.
The bearing seat adopts a split structure and is provided with two symmetrical parts, and the two parts of the bearing seat are connected by a guide pin; the diameter of the pressing cambered surface below the horizontal sliding rail is larger than that of the supporting cambered surface of the supporting seat.
The device is made of polytetrafluoroethylene material.
The invention has the advantages and positive effects that: adopt bearing seat and gland fixed model stake of adjustable connection, set up the slide rail on the gland, be equipped with paster groove and biplate paster size scale on the slide rail, cooperation setting-out slider can accomplish the halving setting-out of model stake fast, accurately, can accomplish two foil gage parallel pastes fast, accurately, and the piece by piece of foil gage is pasted, pastes the location accuracy, and is fast, and application scope is big to cooperation foil gage location slider can accomplish the foil gage fast, accurately.
Drawings
FIG. 1 is a front view of an application of the assembled line drawing slider of the present invention to a phi 15mm circular model pile;
FIG. 2 is a front view of an application of the assembled line drawing slider of the present invention to a phi 20mm circular model pile;
fig. 3 is a side view of fig. 1 and 2;
FIG. 4 is a top view of FIG. 3;
fig. 5 is a three-dimensional view of the strain gage positioning block of the present invention.
In the figure: 1. a gland; 1-1, a horizontal sliding rail; 1-2, connecting flanks; 1-3, connecting long holes; 1-4, horizontal graduation lines; 1-5, a patch groove; 1-6, double patch size scales; 1-7, single patch size scales; 2. a support bracket; 2-1, a guide pin; 3. a screw; 4. a line drawing slide block; 4-1, inserting a pen hole; 5. a strain gauge positioning slide block; 5-1, strain gauge positioning holes; 5-2, a pointer; 6. and (5) model piles.
Detailed Description
For a further understanding of the invention, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings in which:
referring to fig. 1-5, a device for quickly and accurately positioning strain gauge pasting positions of circular model piles comprises a bearing bracket 2 arranged below a horizontally placed model pile 6 and provided with a cambered surface on a supporting surface, a gland 1 arranged above the model pile 6 and provided with a C-shaped cross section, a line drawing slide block 4 and a strain gauge positioning slide block 5, wherein the top of the gland 1 is a horizontal slide rail 1-1 pressed on the model pile 6, a pressing cambered surface matched with the model pile 6 is arranged below the horizontal slide rail 1-1, two sides of the horizontal slide rail 1-1 are respectively provided with a connecting flank 1-2, each connecting flank 1-2 is provided with at least two connecting long holes 3-3 extending in the vertical direction, the gland 1 is buckled on the bearing bracket 2, the connecting flanks 1-2 are locked on the bearing bracket 2 by screws 3, and the screws 3 are arranged in the connecting long holes 1-3 in a penetrating manner; the end face of the connecting flank 1-2 is provided with horizontal graduation lines 1-4; the horizontal sliding rail 1-1 is provided with the line drawing sliding block 4 or the strain gauge positioning sliding block 5, the transverse middle part of the line drawing sliding block 4 is provided with a pen inserting hole 4-1, the middle part of the strain gauge positioning sliding block 5 is provided with a strain gauge positioning hole 5-1 with the same size as a resistance strain gauge, one side of the strain gauge positioning sliding block 5 is provided with a pointer 5-2, the middle part of the horizontal sliding rail 1-1 is provided with a patch groove 1-5 extending longitudinally along the horizontal sliding rail 1-1, the patch groove 1-5 is positioned below the pen inserting hole 4-1 and the strain gauge positioning hole 5-1, the patch groove 1-5 is 2 times of the strain gauge width, the horizontal sliding rail 1-1 is provided with double patch size scales 1-6, and the outer side of the upper part of the connecting flank 1-2 is provided with single patch size scales 1-7 aligned with the pointer 5-2.
The device is made of polytetrafluoroethylene material, and the material does not react with glue for adhering the strain gauge. The bearing seat 2 adopts a split structure and is provided with two parts which are symmetrical left and right, and the two parts of the bearing seat 2 are connected by a guide pin 2-1; the diameter of the pressing cambered surface below the horizontal sliding rail 1-1 is larger than that of the supporting cambered surface of the supporting seat 2, so that the device can be suitable for model columns with multiple sizes, and the diameter of the model column is between two cambered surface diameters. For example, the diameter of the pressing cambered surface below the horizontal sliding rail 1-1 is 20mm, the diameter of the supporting cambered surface of the supporting seat 2 is 15mm, the device can be suitable for drawing lines and pasting work of model piles with the diameter of 15-20 mm, and when the device is used for model piles with larger diameters, the two parts of the supporting seat 2 are pulled apart, and please refer to fig. 2.
Referring to fig. 1-2, the method of using the present invention comprises:
firstly), before the patch, horizontally placing a model pile 6 on a bearing seat 2, fastening a gland 1, then screwing up a screw 3, locking the gland 1 on the bearing seat 2, and locking the model pile 6 between the gland 1 and the bearing seat 2;
secondly), the line drawing sliding block 4 is arranged on the horizontal sliding rail 1-1, and a line drawing pen is inserted into the pen inserting hole 4-1;
thirdly, enabling the line drawing sliding block 4 to slide on the horizontal sliding rail 1-1, and drawing a first bisector in the patch groove 1-5 along the pile axis direction;
fourthly), loosening the screw 3 to enable the model pile 6 to rotate 180 degrees, enabling a first bisector to be aligned with the middle position of a gap between two subsections of the bearing bracket, locking the screw 3, and then repeating the second) and the third) to draw a second bisector;
fifthly), loosening the screw 3, rotating the model pile 6 by 90 degrees, aligning the first bisector and the second bisector with the horizontal scale lines 1-4, locking the screw 3, repeating the second) and the third) again, and drawing a third bisector;
sixthly), loosening the screw 3, enabling the model pile 6 to rotate 180 degrees, enabling the first bisector and the second bisector to be aligned with the horizontal scale lines 1-4, locking the screw 3, repeating the second) and the third) again, and drawing a fourth bisector;
seventhly), if only one piece is needed to be stuck at each position, the line drawing slide block 4 is replaced by the strain gauge positioning slide block 5, the strain gauge positioning slide block 5 is slid into place according to the set position, the pointer 5-2 is aligned with the set single-chip patch size scale 1-7, then 502 glue is coated in the strain gauge positioning hole 5-1 of the strain gauge positioning slide block 5, and a strain gauge is stuck; if two strain gauges are required to be adhered in parallel, the strain gauge positioning slide block 5 is required to be taken down, and positioning and adhering are carried out according to the double-patch size scales 1-6 on the horizontal slide rail 1-1.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the appended claims, which are within the scope of the present invention.
Claims (3)
1. The device for quickly and accurately positioning the sticking position of the strain gauge is characterized by comprising a bearing seat, a gland, a line drawing slide block and a strain gauge positioning slide block, wherein the bearing seat is arranged below a horizontally placed model pile, the bearing surface of the bearing seat is an arc surface, the gland is arranged above the model pile, the cross section of the gland is C-shaped, the top of the gland is a horizontal slide rail pressed on the model pile, the lower surface of the horizontal slide rail is provided with a pressing arc surface matched with the model pile, two sides of the horizontal slide rail are respectively provided with a connecting flank, each connecting flank is provided with at least two connecting long holes extending along the upper and lower directions, the gland is buckled on the bearing seat, the connecting flanks are locked on the bearing seat by screws, and the screws are arranged in the connecting long holes in a penetrating manner; the end face of the connecting flank is provided with horizontal scale marks; the horizontal sliding rail is provided with the line drawing sliding block or the strain gauge positioning sliding block, the transverse middle part of the line drawing sliding block is provided with a pen inserting hole, the middle part of the strain gauge positioning sliding block is provided with a strain gauge positioning hole, one side of the strain gauge positioning sliding block is provided with a pointer, the middle part of the horizontal sliding rail is provided with a patch groove extending longitudinally along the strain gauge positioning hole, the patch groove is positioned below the pen inserting hole and the strain gauge positioning hole, the width of the patch groove is 2 times of the width of the strain gauge, the horizontal sliding rail is provided with double patch size scales, and the outer side of the upper part of the connecting flank is provided with single patch size scales aligned with the pointer; the bearing seat adopts split structure, is equipped with bilateral symmetry's two branches, two branches of bearing seat adopt the guide pin to connect.
2. The device for quickly and accurately positioning the attaching position of the strain gauge according to claim 1, wherein the diameter of the pressing arc surface below the horizontal sliding rail is larger than the diameter of the supporting arc surface of the supporting seat.
3. A device for quick and accurate positioning of strain gauge attachment locations for circular model piles according to claim 1, wherein the device is made of polytetrafluoroethylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086628.2A CN108869489B (en) | 2018-09-18 | 2018-09-18 | Device for quickly and accurately positioning strain gauge pasting position of circular model pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086628.2A CN108869489B (en) | 2018-09-18 | 2018-09-18 | Device for quickly and accurately positioning strain gauge pasting position of circular model pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108869489A CN108869489A (en) | 2018-11-23 |
| CN108869489B true CN108869489B (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811086628.2A Active CN108869489B (en) | 2018-09-18 | 2018-09-18 | Device for quickly and accurately positioning strain gauge pasting position of circular model pile |
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| CN (1) | CN108869489B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779747A (en) * | 2020-07-31 | 2020-10-16 | 中国航发贵阳发动机设计研究所 | Method for pasting and pressurizing normal-temperature strain gauge of conduit test piece |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000019179A1 (en) * | 1998-09-25 | 2000-04-06 | Structural Integrity Monitoring Systems, Inc. | Strain gauge and strain-indicating devices |
| CN2530817Y (en) * | 2002-04-02 | 2003-01-15 | 姜荣华 | Multifunctional angle resolver |
| CN101210850A (en) * | 2006-12-29 | 2008-07-02 | 中国直升机设计研究所 | Multi-component force sensor |
| CN203949840U (en) * | 2014-06-30 | 2014-11-19 | 交通运输部天津水运工程科学研究所 | The mud system safety testing device that flows |
| CN204115710U (en) * | 2014-11-18 | 2015-01-21 | 中国核动力研究设计院 | A kind of pipe internal strain sheet paste tool |
| CN204357868U (en) * | 2014-12-30 | 2015-05-27 | 中国石油化工股份有限公司 | A kind of derrick detection foil gauge site frock |
| CN105041804A (en) * | 2015-08-25 | 2015-11-11 | 马鞍山科勒称重设备制造有限公司 | Strain gauge attaching device and method for deep-hole shaft pin sensor |
| CN204944453U (en) * | 2015-08-24 | 2016-01-06 | 广州华工百川科技有限公司 | A kind of online contour outline measuring set produced for tire sealant parts |
| CN105738176A (en) * | 2016-03-07 | 2016-07-06 | 河海大学 | Multifunctional device and method for model test pile foundation processing and detection |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080087097A1 (en) * | 2005-02-18 | 2008-04-17 | Sumitomo Heavy Industries, Ltd. | Strain Measuring Device And Fixing Method Of Strain Measuring |
-
2018
- 2018-09-18 CN CN201811086628.2A patent/CN108869489B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000019179A1 (en) * | 1998-09-25 | 2000-04-06 | Structural Integrity Monitoring Systems, Inc. | Strain gauge and strain-indicating devices |
| CN2530817Y (en) * | 2002-04-02 | 2003-01-15 | 姜荣华 | Multifunctional angle resolver |
| CN101210850A (en) * | 2006-12-29 | 2008-07-02 | 中国直升机设计研究所 | Multi-component force sensor |
| CN203949840U (en) * | 2014-06-30 | 2014-11-19 | 交通运输部天津水运工程科学研究所 | The mud system safety testing device that flows |
| CN204115710U (en) * | 2014-11-18 | 2015-01-21 | 中国核动力研究设计院 | A kind of pipe internal strain sheet paste tool |
| CN204357868U (en) * | 2014-12-30 | 2015-05-27 | 中国石油化工股份有限公司 | A kind of derrick detection foil gauge site frock |
| CN204944453U (en) * | 2015-08-24 | 2016-01-06 | 广州华工百川科技有限公司 | A kind of online contour outline measuring set produced for tire sealant parts |
| CN105041804A (en) * | 2015-08-25 | 2015-11-11 | 马鞍山科勒称重设备制造有限公司 | Strain gauge attaching device and method for deep-hole shaft pin sensor |
| CN105738176A (en) * | 2016-03-07 | 2016-07-06 | 河海大学 | Multifunctional device and method for model test pile foundation processing and detection |
Non-Patent Citations (3)
| Title |
|---|
| Use of strain gages for determining generalized stress intensity factors of sharp V-notched plates under transverse bending;Toshimi Kond et al.;《Engineering Fracture Mechanics》(第124-125期);全文 * |
| 水平循环荷载作用下群桩与软粘土相互作用离心模型试验研究;张宇亭;《水道港口》;第3卷(第02期);全文 * |
| 竖向荷载作用下斜桩承载特性模型试验研究;傅花;《人民长江》;第47卷(第05期);全文 * |
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| CN108869489A (en) | 2018-11-23 |
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