CN2224416Y - Single-pressing and straight-shearing test instrument for large-diameter sample - Google Patents
Single-pressing and straight-shearing test instrument for large-diameter sample Download PDFInfo
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- CN2224416Y CN2224416Y CN 94238355 CN94238355U CN2224416Y CN 2224416 Y CN2224416 Y CN 2224416Y CN 94238355 CN94238355 CN 94238355 CN 94238355 U CN94238355 U CN 94238355U CN 2224416 Y CN2224416 Y CN 2224416Y
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- shearing
- pressure
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- shear
- straight
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- Expired - Fee Related
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Abstract
The utility model relates to a single-pressing and straight-shearing test instrument for a large-diameter sample. The single-pressing and straight-shearing test instrument for a large-diameter sample adopts a jack to apply shearing force. Vertical top pressure is changed into horizontal shearing force which is applied to a shearing box with the transferring force of a top rod and a roller battery. The shearing box adopts a cylinder structure which is divided into an upper layer and a lower layer. Valving half circular rings are connected with a hinge and a buckle, which forms a cylinder at each layer. The shearing box can also be used as a pressure box. Pressure is applied with pound scales and weights. The pressure is applied on the pressure box with the transmission force of a lever. The mechanisms are connected in a combining mode with a frame, which forms a complete machine. The utility model has two purposes. The utility model can be used for a single-pressing test and a straight-shearing test. A large-size sample can be tested. The utility model can prevent the testing performance of a small-size sample from being influenced by inhomogeneous material. The utility model can also be used for testing a sample with reinforcing material.
Description
The utility model relates to the proving installation of a kind of highway subgrade, basic unit, flexible pavement and building foundation material sample list pressure and direct shear test, and the spy is the single pressure of soil sample, staight scissors proving installation in addition.
Existing sample list pressure tester and staight scissors tester are respectively two kinds of proving installations, and single pressure tester is by the pressure applying mechanism, pressure transferred structure, and pressure cell connects to be installed on the frame and constitutes; The staight scissors tester is by the shearing force applying mechanism, and shearing transmission mechanism, shear box, shearing test chart connect to be installed on the frame and constitute.Do specimen voltage and direct shear test and must dispose single pressure tester and these two kinds of instruments of staight scissors tester respectively, cost of equipment is all uneconomical with the occupation of land space, and because rocking arm worm gear and worm screw that existing staight scissors tester employing level is installed make the shearing applying mechanism, its power that applies is less, limited specimen size, this small size sample brings the inaccuracy of test result owing to the influence that is subjected to discontinuity of materials easily, in addition, because existing specimen size is little, when containing reinforcement material in the test specimen, test very difficult.It more than is the weak point of existing this class device.
The purpose of this utility model is to design a kind of dual-use, can carry out the proving installation of single pressure and two kinds of tests of staight scissors simultaneously to soil sample, and the shearing applying mechanism of this device can apply bigger shearing, makes specimen size to strengthen, thereby can more accurately reflect the material for test mechanical property.
Technical solution of the present utility model is the large-diameter sample single pressure straight-shear tester, by pressure applying mechanism, pressure transferred structure, pressure cell, shearing applying mechanism, shearing transmission mechanism, shear box, the shearing test chart is formed, and the combination connection is installed in and constitutes a complete machine on the frame; The shearing applying mechanism is vertically arranged lifting jack, connects with shear box as the shearing transmission mechanism with the push rod, the roller set that vertical roof pressure power are converted into horizontal shear; Shear box is upper and lower two-layer hollow cylinder, and every layer of cylinder is made of with hinge and snap-engagement two semicircular ring lobes, shear box double as pressure cell; The pressure applying mechanism adopts platform scale, weights, makes pressure transferred structure with lever and connects with pressure cell.
Keep horizontal translation for accurately controlling shear box, the clock gauge of test shear box horizontal shift is housed in the shear box both sides, box is top-loaded with the clock gauge of measuring the sample perpendicular displacement, but the test compression sedimentation.
Description of drawings:
Accompanying drawing 1 is a large-diameter sample single pressure straight-shear tester structure front elevation
Accompanying drawing 2 is major diameter test specimen single pressure straight-shear tester structure vertical views
The utility model further specifies as follows in conjunction with specific embodiments referring to accompanying drawing:
The large-diameter sample single pressure straight-shear tester, by pressure applying mechanism 1, pressure transferred structure 4, pressure cell 5, shearing applying mechanism 8, shearing transmission mechanism 7, shear box 5, shearing test chart 3 is formed, and its combination is connected, and is installed on the frame 2, constitutes a complete machine; The shearing applying mechanism 8 employing lifting jack vertically machine of being installed on add 2 platen below, connect with shear box 5 as shearing transmission mechanism 7 with push rod, roller set, the vertical roof pressure power that push rod, roller set apply lifting jack is converted into horizontal shear force and acts on the shear box 5, shear box 5 double as pressure cells; Shear box 5 is upper and lower two-layer hollow cylinder, and every layer of cylinder engaged with hasp 10 with hinge 9 by two semicircular ring distinguish and constitute; Pressure applying mechanism 1 adopts pound scale, weights to constitute, and is installed on the platen below of frame 2, is positioned at the lifting jack opposite side, connects with pressure cell 5 as pressure transferred structure 4 with vertically arranged lever, and weights, platform scale applied pressure are delivered on the pressure cell; Shearing test chart 3 adopts the ring of measuring one's own ability, and connects with shear box 5.During test, sample places pressure cell 5, bears pressure and shearing force.Push rod, roller set pressure shearing transmission mechanism 7 and pressure cell are shear box 5 and cut on the platen that test chart 3 all is installed on frame 2.
For accurate control shear box, lower floor's shear box is done the horizontal translation motion when keeping test, clock gauge 11 is housed in the shear box both sides connects with the lower floor shear box, can measure the horizontal shift of lower floor's shear box.Box is top-loaded with the clock gauge 6 of measuring the sample perpendicular displacement, but the test compression sedimentation.
The utility model has the advantage of:
1. adopt vertically arranged jack to exert pressure, and adopt push rod, roller set transmission to turn to The cylindrical shape shear box structure that turns to shearing and adopt upper and lower layer distinguish to engage therefore can To apply bigger shearing, make large-diameter sample, both can avoid small size sample to be subject to material The material inhomogeneities affects the disadvantage of test result accuracy, can reach again unified with international standard, It is measure-alike that specimen size is made the CBR bulk specimen.
2. single pressure tester and staight scissors tester are made a complete machine, dual-use, both Can save material, reduce cost, can dwindle again and take up an area the space, weight reduction is so that not only Be suitable for indoor test, also can be suitable for field test and on-the-spot test.
3. because specimen size is bigger, this device can be tested the test specimen that contains reinforcement material.
Claims (2)
1. large-diameter sample single pressure straight-shear tester is by pressure applying mechanism, pressure transferred structure, pressure cell, shearing applying mechanism, shearing transmission mechanism, shear box, the shearing test chart is formed, and it is characterized in that its combination connection is installed in complete machine of formation on the frame; The shearing applying mechanism is vertically arranged lifting jack, makes power shearing transmission mechanism with the push rod, the roller set that vertical roof pressure power are converted into horizontal shear and connects with shear box; Shear box is upper and lower two-layer hollow cylinder, and every layer of cylinder helps hinge and snap-engagement to constitute by two semicircular ring lobe nationalitys, shear box double as pressure cell.
2. large-diameter sample single pressure straight-shear tester according to claim 1 is characterized in that its shear box both sides are equipped with the clock gauge of test shear box horizontal shift, and box is top-loaded with the clock gauge of measuring the sample perpendicular displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94238355 CN2224416Y (en) | 1994-10-08 | 1994-10-08 | Single-pressing and straight-shearing test instrument for large-diameter sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94238355 CN2224416Y (en) | 1994-10-08 | 1994-10-08 | Single-pressing and straight-shearing test instrument for large-diameter sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2224416Y true CN2224416Y (en) | 1996-04-10 |
Family
ID=33845798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94238355 Expired - Fee Related CN2224416Y (en) | 1994-10-08 | 1994-10-08 | Single-pressing and straight-shearing test instrument for large-diameter sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2224416Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414281C (en) * | 2004-10-29 | 2008-08-27 | 成都理工大学 | Portable rock mechanic multifunction testing instrument |
| CN101620053B (en) * | 2009-08-11 | 2011-10-05 | 长安大学 | Asphalt mixture shearing parameter determinator |
| CN103175742A (en) * | 2013-03-06 | 2013-06-26 | 北京交通大学 | Frozen soil dynamic load direct shear apparatus |
| CN104034606A (en) * | 2014-06-03 | 2014-09-10 | 同济大学 | Multifunctional geotechnical synthesized material interface direct shear apparatus |
| CN105606460A (en) * | 2015-12-22 | 2016-05-25 | 中南大学 | Contact surface equal-strain direct shear apparatus and sample preparation method thereof |
| CN106053253A (en) * | 2016-05-19 | 2016-10-26 | 同济大学 | Soil grasper measuring device for measuring real displacement of soil sheared by large size soil engineering direct shear apparatus |
| CN106370528A (en) * | 2016-08-21 | 2017-02-01 | 浙江科技学院 | Portable rock structure surface direct shearing tester |
| CN108225918A (en) * | 2018-01-30 | 2018-06-29 | 清华大学 | Large-scale metaling-rock contact face rheological experiments instrument and its application method |
-
1994
- 1994-10-08 CN CN 94238355 patent/CN2224416Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414281C (en) * | 2004-10-29 | 2008-08-27 | 成都理工大学 | Portable rock mechanic multifunction testing instrument |
| CN101620053B (en) * | 2009-08-11 | 2011-10-05 | 长安大学 | Asphalt mixture shearing parameter determinator |
| CN103175742A (en) * | 2013-03-06 | 2013-06-26 | 北京交通大学 | Frozen soil dynamic load direct shear apparatus |
| CN104034606A (en) * | 2014-06-03 | 2014-09-10 | 同济大学 | Multifunctional geotechnical synthesized material interface direct shear apparatus |
| CN105606460A (en) * | 2015-12-22 | 2016-05-25 | 中南大学 | Contact surface equal-strain direct shear apparatus and sample preparation method thereof |
| CN106053253A (en) * | 2016-05-19 | 2016-10-26 | 同济大学 | Soil grasper measuring device for measuring real displacement of soil sheared by large size soil engineering direct shear apparatus |
| CN106370528A (en) * | 2016-08-21 | 2017-02-01 | 浙江科技学院 | Portable rock structure surface direct shearing tester |
| CN108225918A (en) * | 2018-01-30 | 2018-06-29 | 清华大学 | Large-scale metaling-rock contact face rheological experiments instrument and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |