CN106525104B - A kind of solid sample upper bed-plate of GDS torsion shear apparatus - Google Patents
A kind of solid sample upper bed-plate of GDS torsion shear apparatus Download PDFInfo
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- CN106525104B CN106525104B CN201610885764.2A CN201610885764A CN106525104B CN 106525104 B CN106525104 B CN 106525104B CN 201610885764 A CN201610885764 A CN 201610885764A CN 106525104 B CN106525104 B CN 106525104B
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- Prior art keywords
- screw hole
- seat
- plate
- gds
- upper bed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
Abstract
The invention discloses a kind of solid sample upper bed-plates of GDS torsion shear apparatus, including the seat of honour and the lower seat for being provided with the seat of honour lower part, wherein the upper surface at the seat of honour is provided with positioning protrusion and screw hole；The side wall of the lower seat is provided with drain connection hole, drainage hole and side wall screw hole, and the drain connection hole and drainage hole communicate.The effect that upper bed-plate is no longer tightened and rotated with the application of test torque can be realized by using solid sample upper bed-plate of the invention, so that test data is more acurrate and easy to disassemble, be suitable for all kinds of earth materials.In addition, the screw hole on top is position and specification according to the existing screw hole of instrument top bottom-disc and is arranged, do not need additionally to set screw hole in top bottom-disc, it is easy to use.
Description
Technical field
The invention belongs to Soil Parameters measuring device field, in particular to a kind of solid sample upper bed-plate of GDS torsion shear apparatus.
Background technique
More units have been widely used GDS torsion shear apparatus at home at present, the instrument be not only able to achieve clay and
The hollow cylinder torsional scissor test of sand, while being also able to achieve three axis in the solid sample of all kinds of earth materials, turning round and the test such as cut.Wherein, factory
The solid sample upper bed-plate that family provides relies on a screw at middle part to be connected with instrument top bottom-disc, cuts examination in the torsion for carrying out solid sample
There are the following problems when testing: 1) torque applied during the test to sample will drive upper bed-plate and further tighten and rotate,
The accuracy of test data is influenced, for stockpile, the torque of application is larger, then the problem is more prominent；2)
After test of many times, upper bed-plate is tightened, and can only be lived in pedestal by the holding of operator when dismantling and be rotated backward, so that
It dismantles extremely difficult；3) bottom surface of upper bed-plate and sample contacts is that the coefficient of friction between smooth flat, with sample is smaller, especially
For clay and sand, when the axial force of application is smaller, torque can to produce relative rotation between sample and upper bed-plate,
So that torque can not be applied to design value.
Summary of the invention
Goal of the invention: to solve the technical problems existing in the prior art, the present invention provides a kind of solid sample of GDS torsion shear apparatus
Upper bed-plate.
Technical solution: to realize the above-mentioned technical purpose, the solid sample upper bed-plate of GDS torsion shear apparatus provided by the invention includes the seat of honour
With the lower seat for being provided with the seat of honour lower part, wherein the upper surface at the seat of honour is provided with positioning protrusion and screw hole；Under described
The side wall of seat is provided with drain connection hole, drainage hole and side wall screw hole, and the drain connection hole and drainage hole communicate.Side
The setting of wall screw hole can be screwed into screw filling space when filling sample to facilitate, and prevent the disengaging of water from influencing cubic deformation
Measurement, in addition, can be inserted in side wall screw hole if the case where clamping occurs in the screw hole at the seat of honour after acting on by torque
Enter screwdriver or so slight wobble, generates the disassembly of the convenient screw to top after loosening.
Wherein, the position and size phase of the position of the positioning protrusion and size with the groove on the chassis of GDS torsion shear apparatus
Adaptation.Since the chassis of existing GDS torsion shear apparatus is being provided centrally with circular groove mostly, which can be set to
Circular protrusions positioned at the upper surface center at the seat of honour.
The position of the screw hole and quantity are opposite with the position of existing screw hole on the chassis of GDS torsion shear apparatus and quantity
It answers.Screw hole is set by the position and specification that utilize the existing screw hole of instrument chassis, may not need and additionally beaten on the seat of honour
It is easy to use if screw hole.Preferably, there are certain safe distances, such as 4~5mm for the bottom at the screw hole of setting and the seat of honour
Left and right.
Preferably, the bottom surface of the lower seat is frosted bottom surface, to overcome the coefficient of friction of raise up pedestal and sample coupon
Small defect.
The solid sample upper bed-plate of GDS torsion shear apparatus is made of metal material corrosion-resistant, with high hardness.Preferably, the GDS
The solid sample upper bed-plate of torsion shear apparatus is prepared by stainless steel material.
Side wall drain connection hole is two, is symmetric along the center of lower seat and the side wall screw hole of lower seat.
The effect of drainage hole is during the test, the water that sample generates to be imported into side wall drain connection hole, side wall drainpipe connects
Head bore is connected with externally drained pipe, introduces the water into the acquisition that sensor carries out displacement of volume data.
Preferably, the screw hole and side wall screw hole are disposed as the screw thread suitable for M5 hexagon socket head cap screw.
The mentality of designing of upper bed-plate size:
The diameter of the solid sample of standard be 100mm, thus by the diameter design of the lower seat of the upper bed-plate be 100mm.Institute
The seat of honour of upper bed-plate is stated due to being provided with screw hole, and the position of screw hole according to the existing screw hole site of instrument top bottom-disc and
Fixed, i.e. the centre distance base center distance of screw hole is 50mm, screw hole M5, then the diameter of screw hole is 4.2mm, this
Outside, the bottom edge at screw hole and the seat of honour 3 should be there are certain safe distance, such as 4mm, then upper diameter is not preferably less than 112mm,
And it is not preferably greater than the diameter of the existing top bottom-disc of instrument.
The design of screw hole:
By taking the GDS torsion shear apparatus that Hohai University introduces as an example, the peak torque which can apply is 100Nm, top
The centre distance of the centre distance upper bed-plate of screw hole is 50mm (i.e. 0.05m), the specification for the M5 hexagon socket head cap screw that producer provides
For A2-70, then the diameter of screw is 4.2mm (i.e. 0.0042m), when torque is applied to maximum value 100Nm, each screw by
Shear stress are as follows:
The screw that specification the is A2-70 i.e. tensile strength of screw is 700MPa, and yield strength 450MPa, i.e. maximum, which are cut, to be answered
Power 36.1MPa is much smaller than the yield strength of screw, thus the M5 hexagon socket head cap screw for designing the A2-70 provided using producer is suitable
's.
During installation, screw is screwed into side wall screw hole first, then hold in the palm upper bed-plate, and positioning protrusion 1 is right
In the quasi- existing circular groove of instrument top bottom-disc, rotation so that top screw hole 2 is aligned with the existing screw hole of instrument top bottom-disc,
It is symmetrically installed and tightens screw, then the upper bed-plate is installed successfully.
In disassembly, first the screw of side wall screw hole is backed out, insertion screwdriver or so slight wobble, so that making through torque
Top screw after generates loosening, and then screw easy to disassemble symmetrically backs out top screw, then the upper bed-plate is disassembled into
Function.
The utility model has the advantages that can be realized upper bottom by using solid sample upper bed-plate of the invention compared with existing upper bed-plate
The effect that seat is no longer tightened and rotated with the application of test torque is suitable for all kinds of earth materials, so that test data is more acurrate
And it is easy to disassemble.In addition, the screw hole on top is position and specification according to the existing screw hole of instrument top bottom-disc and is arranged,
It does not need additionally to set screw hole in top bottom-disc, it is easy to use.
Detailed description of the invention
Fig. 1 is the main view of the solid sample upper bed-plate of GDS torsion shear apparatus of the invention；
Fig. 2 is the top view of the solid sample upper bed-plate of GDS torsion shear apparatus of the invention.
Specific embodiment
The contents of the present invention are described in detail with reference to the accompanying drawing.
Fig. 1 and Fig. 2 is respectively the main view and top view of solid sample upper bed-plate provided by the invention.The upper bed-plate includes upper
Seat 3 and lower seat 8, the seat of honour and lower seat are structure as a whole.Wherein the seat of honour 3 is provided with positioning protrusion 1 and top screw hole 2, lower seat 8
It is provided with side wall screw hole 4, side wall drain connection hole 5, internal drainage hole 6 and frosted bottom surface 7, wherein drain connection hole
It is communicated with internal drainage hole.Position and size phase of the position and size of positioning protrusion with the groove on the chassis of GDS torsion shear apparatus
Adaptation is usually arranged as the circular protrusions positioned at the upper surface center at the seat of honour.The position of screw hole and quantity and GDS torsion shear apparatus
The position of existing screw hole and quantity are corresponding on chassis.In the present embodiment, 4 screw holes are set, and 4 screw holes are uniform
It is set to the surrounding of the upper surface at the seat of honour.The bottom surface of lower seat is set as frosted bottom surface, so as to overcome raise up pedestal and sample
The small defect of the coefficient of friction of part.Side wall drain connection hole is two, and the center along lower seat is symmetric.Meanwhile under
A M5 side wall screw hole 4 is arranged in the side wall of seat, can be screwed into screw filling space when filling sample, prevent the disengaging of water from influencing
The measurement of cubic deformation；If there is the case where clamping in four top screws after acting on by torque, can be in the side wall
It is inserted into screwdriver or so slight wobble in screw hole 4, generates the convenient disassembly to four top screws after being sent to.Side wall draining
Pipe fitting hole is two, symmetrical along the center of lower seat and straight line formed by the side wall screw hole on lower seat.The work of drainage hole
With being during the test, the water that sample generates to be imported into side wall drain connection hole, side wall drain connection hole and external
Drainpipe is connected, and introduces the water into the acquisition that sensor carries out displacement of volume data.
The mentality of designing of upper bed-plate size:
The diameter of the solid sample of standard be 100mm, thus by the diameter design of the lower seat of the upper bed-plate be 100mm.Institute
The seat of honour of upper bed-plate is stated due to being provided with screw hole, and the position of screw hole according to the existing screw hole site of instrument top bottom-disc and
Fixed, i.e. the centre distance base center distance of screw hole is 50mm, screw hole M5, then the diameter of screw hole is 4.2mm, this
Outside, the bottom edge at screw hole and the seat of honour 3 should be there are certain safe distance, such as 4mm, then upper diameter is not preferably less than 112mm,
And it is not preferably greater than the diameter of the existing top bottom-disc of instrument.
The design of screw hole:
By taking the GDS torsion shear apparatus that Hohai University introduces as an example, the peak torque which can apply is 100Nm, top
The centre distance of the centre distance upper bed-plate of screw hole is 50mm (i.e. 0.05m), the specification for the M5 hexagon socket head cap screw that producer provides
For A2-70, then the diameter of screw is 4.2mm (i.e. 0.0042m), when torque is applied to maximum value 100Nm, each screw by
Shear stress are as follows:
The screw that specification the is A2-70 i.e. tensile strength of screw is 700MPa, and yield strength 450MPa, i.e. maximum, which are cut, to be answered
Power 36.1MPa is much smaller than the yield strength of screw, thus the M5 hexagon socket head cap screw for designing the A2-70 provided using producer is suitable
's.
During installation, screw is screwed into side wall screw hole 4 first, then hold in the palm upper bed-plate of the invention, and will determine
Position protrusion 1 is aligned in the existing circular groove of instrument top bottom-disc, and rotation is so that top screw hole 2 and the existing spiral shell of instrument top bottom-disc
Wire hole alignment, is symmetrically installed and tightens four screws, then the upper bed-plate is installed successfully.
In disassembly, first the screw of side wall screw hole 4 is backed out, insertion screwdriver or so slight wobble, so that through torque
Four top screws after effect generate loosening, and then screw easy to disassemble symmetrically backs out four top screws, then the upper bottom
Seat is dismantled successfully.
It can be realized upper bed-plate by using solid sample upper bed-plate of the invention no longer to twist with the application of test torque
Tight and rotation effect, is suitable for all kinds of earth materials, so that test data is more acurrate and easy to disassemble.In addition, the screw on top
Hole is position and specification according to the existing screw hole of instrument top bottom-disc and is arranged, and does not need additionally to set screw in top bottom-disc
Hole, it is easy to use.
Claims (6)
1. a kind of solid sample upper bed-plate of GDS torsion shear apparatus, which is characterized in that including the seat of honour and be provided under the seat of honour lower part
Seat, wherein the upper surface at the seat of honour is provided with positioning protrusion and screw hole；The side wall of the lower seat is provided with drain connection
Hole, drainage hole and side wall screw hole, the side wall screw hole are the screw hole being arranged in side wall, the drain connection hole and row
Water hole communicates, position and quantity phase of the position and quantity of the screw hole with existing screw hole on the chassis of GDS torsion shear apparatus
It is corresponding；The drain connection hole of side wall is two, symmetrical along the center of lower seat and straight line formed by the side wall screw hole on lower seat
Distribution.
2. the solid sample upper bed-plate of GDS torsion shear apparatus according to claim 1, which is characterized in that the position of the positioning protrusion
It is adapted with size with the position of the groove on the chassis of GDS torsion shear apparatus and size.
3. the solid sample upper bed-plate of GDS torsion shear apparatus according to claim 1, which is characterized in that the bottom surface of the lower seat is
Frosted bottom surface.
4. the solid sample upper bed-plate of GDS torsion shear apparatus according to claim 1, which is characterized in that the solid sample of GDS torsion shear apparatus
Upper bed-plate is made of metal material corrosion-resistant, with high hardness.
5. the solid sample upper bed-plate of GDS torsion shear apparatus according to claim 1, which is characterized in that the screw hole and side wall
Screw hole is disposed as the screw thread suitable for M5 hexagon socket head cap screw.
6. the solid sample upper bed-plate of GDS torsion shear apparatus according to claim 1, which is characterized in that the seat of honour and lower seat are one
Body structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885764.2A CN106525104B (en) | 2016-10-10 | 2016-10-10 | A kind of solid sample upper bed-plate of GDS torsion shear apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885764.2A CN106525104B (en) | 2016-10-10 | 2016-10-10 | A kind of solid sample upper bed-plate of GDS torsion shear apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106525104A CN106525104A (en) | 2017-03-22 |
| CN106525104B true CN106525104B (en) | 2019-07-12 |
Family
ID=58333124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610885764.2A Active CN106525104B (en) | 2016-10-10 | 2016-10-10 | A kind of solid sample upper bed-plate of GDS torsion shear apparatus |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2598912Y (en) * | 2003-01-01 | 2004-01-14 | 谷香敏 | Packaging barrel for oil product |
| JP4297435B2 (en) * | 2004-08-03 | 2009-07-15 | ライト工業株式会社 | Anchor lift-off test method and anchor plate tapping method prior to the method |
| CN203101171U (en) * | 2013-02-01 | 2013-07-31 | 西安理工大学 | Cylindrical soil sample installation clamp device |
| CN104155175A (en) * | 2014-07-18 | 2014-11-19 | 中国科学院武汉岩土力学研究所 | Rock hollow cylinder torsion shear apparatus |
| CN104596817A (en) * | 2015-01-12 | 2015-05-06 | 温州大学 | Pneumatic type coupling system for preparing large remolded clay and performing one-dimensional consolidation test |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205192842U (en) * | 2015-11-27 | 2016-04-27 | 中国科学院武汉岩土力学研究所 | Rock hollow cylinder turns round shearing strain measuring device |
-
2016
- 2016-10-10 CN CN201610885764.2A patent/CN106525104B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2598912Y (en) * | 2003-01-01 | 2004-01-14 | 谷香敏 | Packaging barrel for oil product |
| JP4297435B2 (en) * | 2004-08-03 | 2009-07-15 | ライト工業株式会社 | Anchor lift-off test method and anchor plate tapping method prior to the method |
| CN203101171U (en) * | 2013-02-01 | 2013-07-31 | 西安理工大学 | Cylindrical soil sample installation clamp device |
| CN104155175A (en) * | 2014-07-18 | 2014-11-19 | 中国科学院武汉岩土力学研究所 | Rock hollow cylinder torsion shear apparatus |
| CN104596817A (en) * | 2015-01-12 | 2015-05-06 | 温州大学 | Pneumatic type coupling system for preparing large remolded clay and performing one-dimensional consolidation test |
Non-Patent Citations (1)
| Title |
|---|
| 空心圆柱扭剪仪的改进及应用;孙田，陈国兴，朱定华;《南京工业大学学报(自然科学版)》;20140130;第36卷(第1期);第53页-第59页 |
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|---|---|
| CN106525104A (en) | 2017-03-22 |
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