CN205374163U - Realize direct tensile test bench of rock sample - Google Patents
Realize direct tensile test bench of rock sample Download PDFInfo
- Publication number
- CN205374163U CN205374163U CN201620131450.9U CN201620131450U CN205374163U CN 205374163 U CN205374163 U CN 205374163U CN 201620131450 U CN201620131450 U CN 201620131450U CN 205374163 U CN205374163 U CN 205374163U
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- base
- rotating shaft
- rock sample
- direct tensile
- casing
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a realize direct tensile test bench of rock sample, the on -line screen storage device comprises a base, the base is " concave " font base, the base recess has transversely been offered on the boss of base both sides, install the slide on two inner walls of base recess, the bottom pivot is passed through the slide and is installed in the base recess, each fixedly connected with takes the section of thick bamboo that protects of tensiometer on the two bottom pivot opposite faces, even axle and centre gripping protect and tin are connected through protecting a section of thick bamboo in each bottom pivot, two centre grippings protect the relative setting of a section of thick bamboo, it is articulated with steel sheet one end respectively in each bottom pivot, the two steel sheet other ends are articulated with the top pivot respectively, the top pivot is installed in the recess of top, two rock specimen centre grippings cover protects a section of thick bamboo with two centre grippings respectively and cooperatees. The utility model provides a pair of realize direct tensile test bench of rock sample can solve the great problem of error, adopts the tensile strength's of direct measurement rock specimen mode, has greatly reduced the error.
Description
Technical field
This utility model relates to rock sample and stretches field, especially a kind of testing stand realizing rock sample uniaxial direct tensile.
Background technology
The physical and mechanical parameter of rock is one of key property needing primary study in scientific research.Research further from now on is had great significance by the basic mechanical parameter measuring rock accurately, actual engineering design and construction is had directive significance simultaneously.The tensile characteristics of rock is a kind of key property of rock.A lot of rock textures occur destruction or unstability partly or wholly to bear what tension caused often caused by structure itself.The tension parameter being currently used for measuring rock mainly has direct tensile test and Indirect Tensile Tests both approaches.Generally adopt Indirect Tensile Tests method i.e. Brazil's diametral compression test, be one of standard method testing rock sample tensile strength in the world at present.But it is as deepening continuously of research, it has been found that Brazil's diametral compression test itself exists bigger error, and measurement result can not reflect the true tensile strength of rock sample.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of testing stand realizing rock sample uniaxial direct tensile, it is possible to solve the problem that error is bigger, adopts the mode of the tensile strength directly measuring rock sample, greatly reduces error.
For solving above-mentioned technical problem, this utility model be the technical scheme is that a kind of testing stand realizing rock sample uniaxial direct tensile, including base, base is concave base, the boss of base both sides laterally offers base groove, two inwalls of base groove are provided with slideway, bottom rotating shaft is arranged in base groove by slideway, rotating shaft opposite face is respectively fixedly connected with bottom two the casing of tensile force of belt meter, each bottom rotating shaft is connected with clamping casing by casing connecting shaft, two clamping casings are oppositely arranged, respectively hinged with steel plate one end respectively in the rotating shaft of bottom, the two steel plate other ends are hinged with top rotating shaft respectively, top rotating shaft is installed in top groove, two rock sample retaining sleeves clamp casing with two respectively and match.
Steel plate is isosceles trapezoid steel plate, and its short end is hinged with bottom rotating shaft, and top is hinged with top rotating shaft.
Angle a between two steel plates is 120 degree.
Top rotating shaft is inscribed within top groove.
It is provided with slideway in the middle part of the rotating shaft of bottom and projection is installed.
A kind of testing stand realizing rock sample uniaxial direct tensile that this utility model provides, meet two power rod principles, simultaneously, slideway serves and well retrains fixation, makes to act on the direction of pull of rock sample on the contrary and not eccentric, makes result of the test more accurate, simple in construction, simple operation, can better be applied to the acquisition of Tensile Strength of Rock, and more traditional indirect measurement method is more accurate.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the schematic diagram of rotating shaft bottom this utility model；
Fig. 3 is the schematic diagram of this utility model rock sample retaining sleeve.
Detailed description of the invention
As Figure 1-3, a kind of testing stand realizing rock sample uniaxial direct tensile, including base 9, base 9 is concave base, the boss of base 9 both sides laterally offers base groove 9-1, two inwalls of base groove 9-1 are provided with slideway 9-2, bottom rotating shaft 4 is arranged in base groove 9-1 by slideway 9-2, rotating shaft 4 opposite face is respectively fixedly connected with bottom two the casing 6 of tensile force of belt meter, each bottom rotating shaft 4 is connected with clamping casing 5 by casing connecting shaft 7, two clamping casings 5 are oppositely arranged, respectively hinged with steel plate 3 one end respectively in the rotating shaft 4 of bottom, two steel plate 3 other ends are hinged with top rotating shaft 2 respectively, top rotating shaft 2 is installed in top groove 1, two rock sample retaining sleeves 8 clamp casing 5 with two respectively and match.
Steel plate 3 is isosceles trapezoid steel plate, and its short end is hinged with bottom rotating shaft 4, and top is hinged with top rotating shaft 2.
Angle a between two steel plates 3 is 120 degree.
Top rotating shaft 2 is inscribed within top groove 1.
It is provided with slideway in the middle part of the rotating shaft 4 of bottom and projection 4-1 is installed.
Top groove 1 is cuboid, and length is 16 centimetres, wall thickness 0.3 centimetre, and depth of groove is 2.5 centimetres, and top width is 5.6 centimetres；
Top rotating shaft 2 is cylindrical bearing, and length is 16 centimetres, wall thickness 0.3 centimetre, and external diameter is 5 centimetres；
Steel plate 3 height is 33 centimetres, and going to the bottom is 16 centimetres, and upper base is 2 centimetres, thickness of slab 0.3 centimetre；
Bottom rotating shaft 4 is cylindrical bearing, and length is 2 centimetres, and diameter is 5 centimetres, and slideway installation projection 4-1 is length is 0.5 centimetre, and diameter is the cylindrical projections of 0.4 centimetre；
Clamping casing 5 external diameter 6 centimetres, wall thickness 0.3 centimetre, length 2 centimetres, inwall has screw thread；
The external diameter of casing 63 centimetres, wall thickness 0.3 centimetre, long 3 centimetres, inside is provided with strain gauge；
Casing connecting shaft 7 diameter 1 centimetre, length 1 centimetre；
Base (9) length is 16 centimetres, cross-sectional width is 44 centimetres, groove 9-3 width is 28 centimetres, the groove 9-3 degree of depth is 4.5 centimetres, thick 2 centimetres of groove 9-3 bottom land, groove 9-3 two wall thickness is 8 centimetres, and has the base groove 9-1 that the degree of depth is 3 centimetres on the boss of both sides, and 1 centimetre of depth of groove two wall has 0.5 centimetre of deep slideway 9-2 0.5 centimetre wide.
Work process of the present utility model is as follows:
Being 5 centimetres by a diameter, the two ends that length is the standard cylinder rock sample of 10 centimetres put rock sample retaining sleeve 8, and make it screw with rock sample clamping casing 5, complete rock sample and install.
This utility model installing rock sample is positioned on RMT-150C rock mechanics experiment machine, the pressure that top groove 1 applies linear increment is tested, when rock sample is broken, test stops, and reads rock sample and breaks the tensile force f on moment strain gauge, rock sample area of section A=π r2=19.625 centimetres2, substitute into formula σt=F/A, calculates tensile strength sigmat。
Claims (5)
- null1. the testing stand realizing rock sample uniaxial direct tensile，Including base (9)，It is characterized in that: base (9) is concave base，The boss of base (9) both sides laterally offers base groove (9-1)，Two inwalls of base groove (9-1) are provided with slideway (9-2)，Bottom rotating shaft (4) is arranged in base groove (9-1) by slideway (9-2)，Rotating shaft bottom two (4) opposite face is respectively fixedly connected with the casing (6) of tensile force of belt meter，Each bottom rotating shaft (4) is connected with clamping casing (5) by casing connecting shaft (7)，Two clampings casing (5) are oppositely arranged，Respectively hinged with steel plate (3) one end respectively on bottom rotating shaft (4)，Two steel plates (3) other end is hinged with top rotating shaft (2) respectively，Top rotating shaft (2) is installed in top groove (1)，Two rock sample retaining sleeves (8) clamp casing (5) with two respectively and match.
- 2. a kind of testing stand realizing rock sample uniaxial direct tensile according to claim 1, it is characterised in that: steel plate (3) is isosceles trapezoid steel plate, and its short end is hinged with bottom rotating shaft (4), and top is hinged with top rotating shaft (2).
- 3. a kind of testing stand realizing rock sample uniaxial direct tensile according to claim 1, it is characterised in that: the angle a between two steel plates (3) is 120 degree.
- 4. a kind of testing stand realizing rock sample uniaxial direct tensile according to claim 1, it is characterised in that: top rotating shaft (2) is inscribed within top groove (1).
- 5. a kind of testing stand realizing rock sample uniaxial direct tensile according to claim 1, it is characterised in that: bottom rotating shaft (4) middle part is provided with slideway and installs projection (4-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620131450.9U CN205374163U (en) | 2016-02-22 | 2016-02-22 | Realize direct tensile test bench of rock sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620131450.9U CN205374163U (en) | 2016-02-22 | 2016-02-22 | Realize direct tensile test bench of rock sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205374163U true CN205374163U (en) | 2016-07-06 |
Family
ID=56271915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620131450.9U Expired - Fee Related CN205374163U (en) | 2016-02-22 | 2016-02-22 | Realize direct tensile test bench of rock sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205374163U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225904A (en) * | 2018-04-11 | 2018-06-29 | 四川大学 | The fixture of rocks in direct tension experiment and the test method based on the fixture |
| CN108693035A (en) * | 2018-05-15 | 2018-10-23 | 安徽理工大学 | A kind of Tensile Strength of Rock test device and its test method |
-
2016
- 2016-02-22 CN CN201620131450.9U patent/CN205374163U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225904A (en) * | 2018-04-11 | 2018-06-29 | 四川大学 | The fixture of rocks in direct tension experiment and the test method based on the fixture |
| CN108225904B (en) * | 2018-04-11 | 2019-06-04 | 四川大学 | The fixture that rocks in direct tension is tested and the test method based on the fixture |
| CN108693035A (en) * | 2018-05-15 | 2018-10-23 | 安徽理工大学 | A kind of Tensile Strength of Rock test device and its test method |
| CN108693035B (en) * | 2018-05-15 | 2020-06-02 | 安徽理工大学 | Rock tensile strength testing device and testing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20170222 |