CN204330481U - Pressure cuts cohesive strength test fixture - Google Patents
Pressure cuts cohesive strength test fixture Download PDFInfo
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- CN204330481U CN204330481U CN201420715347.XU CN201420715347U CN204330481U CN 204330481 U CN204330481 U CN 204330481U CN 201420715347 U CN201420715347 U CN 201420715347U CN 204330481 U CN204330481 U CN 204330481U
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- backboard
- double thread
- thread bar
- rod
- cohesive strength
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Abstract
The utility model discloses a kind of pressure and cut cohesive strength test fixture, comprise base, the biside plate that base is provided with backboard and is all positioned on front side of backboard, biside plate is that left and right is oppositely arranged, up and down just to being provided with two rolling friction rods between biside plate, two rolling friction rods are all positioned at the front of backboard, form test specimen and insert chamber between two rolling friction rods and backboard; The utility model is a kind of when inorganic material test specimen is tested, and the in stable condition pressure of inorganic material test specimen can be kept to cut cohesive strength test fixture.
Description
Technical field
The utility model relates to a kind of fixture cutting cohesive strength test for material pressure.
Background technology
In investigation of materials process, material properties test is a very important link, and wherein Mechanics Performance Testing occupies again very important position.In Measurement of Material Mechanical Performance, there is much different indexs to weigh the mechanical property of material different aspect.Rupture strength is used to weigh material repels and fractures the breaking limit of stress, and compressive strength weighs the breaking limit of material repels pressure, and shear resistance weighs the breaking limit of material repels shearing force.Cut in cohesive strength test in the pressure of carrying out inorganic material, with reference to GB/T 20473-2006 building heat-insulating mortar and GB/T 17371-2008 composite heat-isolating silicate paint, specific implementation method is as follows: the concrete test block of previously prepared 2 piece of 100 mm*120 mm*10 mm, then inorganic material to be measured is applied between two test blocks, keep the consistent of midcoat thickness, and thickness is 5 ± 1 mm simultaneously.Two test block left and right edges should be alignd, and front and rear side edge staggers 20 mm respectively, to ensure that intermediate coating region is 10000 mm
2.Pressure is cooled to room temperature after maintenance to constant weight and tests after cutting cohesive strength test test material preparation completing.Requiring during test that test specimen is vertically placed, exerts pressure in the two ends respectively to the concrete sample staggered, and pressure conduction is to inter coat position simulation shearing force, and strength reaches breaking limit, and test specimen destroys, and the pressure obtaining detected materials cuts cohesive strength.
In test process, because pressure cuts the special shape of cohesive strength test specimen, as resistance to compression test specimen, steady state (SS) cannot be kept voluntarily.Simultaneously for ensureing the real effectiveness of test data, in the process of test, test specimen must hold mode stable, also should reduce the outside perturbed force applied test specimen as far as possible.
Utility model content
The purpose of this utility model is to provide a kind of when inorganic material test specimen is tested, and the in stable condition pressure of inorganic material test specimen can be kept to cut cohesive strength test fixture.
For achieving the above object, the utility model adopts following technical scheme: pressure cuts cohesive strength test fixture, comprise base, the biside plate that base is provided with backboard and is all positioned on front side of backboard, backboard is that left and right directions extends, and side plate is that fore-and-aft direction extends, biside plate is that left and right is oppositely arranged, up and down just to being provided with two rolling friction rods between biside plate, two rolling friction rods are all positioned at the front of backboard, form test specimen and insert chamber between two rolling friction rods and backboard; Described rolling friction rod is comprised about the one double thread bar extended and is arranged on the cylinder of double thread bar outer ring by bearing, the left and right sides of described double thread bar respectively with biside plate grafting, the jack of the interspersed double thread bar that described side plate is arranged is in the shape that turns round, and jack one end extends back, the other end upwards extends; Governor motion is provided with between the end of described double thread bar and backboard, the adjusting screw(rod) extended before and after described governor motion comprises, the abutment ring being installed in adjusting screw(rod) front end, the spring being set in adjusting screw(rod) outer ring and the setscrew nut be arranged on adjusting screw(rod), adjusting screw(rod) rear portion and backboard grafting, abutment ring is set in the outer ring of corresponding double thread bar, adjusting screw(rod) rear end extends on rear side of backboard, described setscrew nut is blocked on rear side of backboard, and described spring clamp is located between backboard and abutment ring.
Described side plate is vertical with backboard to be arranged, and side plate rear end is fixedly connected with backboard.
Double thread bar be provided be blocked in this double thread bar stop nut outside sheathed abutment ring.
A governor motion is all set between each end of each double thread bar and backboard.
Described setscrew nut is wing nut.
Pressure described in the utility model cuts cohesive strength test fixture, and it has following beneficial effect: (1) can provide a reliable and stable test mode for test specimen to be measured; (2) between test specimen to be measured and rolling friction rod for rolling friction, fixture can be reduced as far as possible in test process, treat the perturbed force that test block brings, improve testing precision.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of side plate;
Structural representation when Fig. 4 is the utility model use.
Embodiment
Cohesive strength test fixture is cut by the pressure shown in Fig. 1-Fig. 4, comprise base 1, base 1 is the seat board of level, and base 1 is provided with backboard 9 and biside plate 2, and backboard 9 and biside plate 2 are vertical extension, biside plate 2 is all positioned on front side of backboard 9, backboard 9 is left and right directions extension, and side plate 2 is that fore-and-aft direction extends, and biside plate 2 is between left and right every being oppositely arranged, each side plate 2 is all vertical with backboard 9 to be arranged, and each side plate 2 rear end is all fixedly connected with backboard 9.Biside plate 2 is connected rear formation entirety with backboard 9 has certain Rigidity and strength, deformation can not occur in test process, in order to avoid affect the accuracy of test data.
Up and down just to being provided with two rolling friction rods between biside plate 2, described rolling friction rod comprises the double thread bar 3 that a left and right horizontal extends and the cylinder 7 being set in double thread bar 3 outer ring by bearing 6, double thread bar 3 and it is symmetrical arranged two bearings 6 between cylinder 7 altogether, cylinder 7 is stainless steel drum, the left and right sides of described double thread bar 3 respectively with biside plate 2 grafting, the left part of every root double thread bar 3 and side plate 2 grafting in left side, the left end of every root double thread bar 3 stretches out outside the side plate 2 of left side left, the right part of every root double thread bar 3 and side plate 2 grafting on right side, the right-hand member of every root double thread bar 3 stretches out to the right outside the side plate 2 of right side.
The cylinder 7 that each double thread bar 3 is arranged is all between biside plate 2, two double thread bars 3 of described two rolling friction rods are up and down just to setting, two cylinders 7 are also up and down just to setting, the length of two double thread bars 3, diameter equidimension is identical, the external diameter of two cylinders 7, length equidimension is also identical, two rolling friction rods are all positioned at the front of backboard 9, form test specimen between two rolling friction rods and backboard 9 and insert chamber 13, cavity between upside rolling friction rod and backboard 9 and the cavity between downside rolling friction rod and backboard 9 jointly form described test specimen and insert chamber 13.
Each side plate 2 just interts two double thread bars 3 with the jack 8 of side to arranging two all up and down respectively, namely the side plate about 2 in left side just interts the jack 8 of two double thread bar 3 left-hand portion respectively to arranging two, and the side plate about 2 on right side is just to arranging two jacks 8 interting position on the right side of two double thread bars 3 respectively.The jack 8 of interspersed double thread bar 3 that described side plate 2 is arranged is in the shape that turns round, and the bending-like of jack 8 in " L " type, and each jack 8 is that one end extends back, the other end upwards extends.
Each end of each double thread bar 3 all and between backboard 9 all arranges a governor motion, the governor motion arranged between the left end of each double thread bar 3 and backboard 9 is positioned at the left of left side side plate 2, and the governor motion arranged between the right-hand member of each double thread bar 3 and backboard 9 is positioned at the right of right side side plate 2.
Described governor motion comprises the adjusting screw(rod) 10 that anterior-posterior horizontal extends, be installed in the abutment ring 5 of adjusting screw(rod) 10 front end, the spring 12 being set in adjusting screw(rod) 10 outer ring and the setscrew nut 11 be arranged on adjusting screw(rod) 10, adjusting screw(rod) 10 rear portion and backboard 9 grafting, the corresponding each adjusting screw(rod) 10 of backboard 9 is equipped with through hole, adjusting screw(rod) 10 rear portion is by respective through hole and backboard 9 grafting, abutment ring 5 is set in the outer ring of corresponding double thread bar 3 end, adjusting screw(rod) 10 rear end extends on rear side of backboard 9, described setscrew nut 11 is blocked on rear side of backboard 9, setscrew nut 11 is wing nut, described spring 12 is set in adjusting screw(rod) 10 outer ring and is located between abutment ring 5 that backboard 9 and this adjusting screw(rod) 10 front end arrange.
Double thread bar 3 be provided be blocked in this double thread bar 3 stop nut 4 outside sheathed abutment ring 5, stop nut 4 and double thread bar 3 are for being threaded, the two ends, left and right of each double thread bar 3 arrange a stop nut 4 respectively, the stop nut 4 of each double thread bar 3 left end is blocked in the left side of the abutment ring 5 of this double thread bar 3 left end position-limit mechanism, and the stop nut 4 of each double thread bar 3 right-hand member is blocked in the right side of the abutment ring 5 of this double thread bar 3 right-hand member position-limit mechanism.
Pressure described in the utility model cuts cohesive strength test fixture, during use, pressure being cut cohesive strength test test specimen loads in test specimen insertion chamber 13, the inorganic material 15 that test test specimen comprises two block concrete plates 14 and is bonded between two concrete slabs 14, two concrete slabs 14 are setting of staggering up and down, wherein a block concrete plate 14 contacts with backboard 9, another block concrete plate 14 contacts with two cylinders 7 of two rolling friction rods, should ensure during test that high-order concrete slab 14 contacts with two cylinders of two rolling friction rods, tighten wing nut, test specimen can be freely up and down movable, but cannot be movable on left and right and fore-and-aft direction under the restriction of side plate 2 and rolling friction rod, can test.
Claims (5)
1. pressure cuts cohesive strength test fixture, it is characterized in that: comprise base, the biside plate that base is provided with backboard and is all positioned on front side of backboard, backboard is that left and right directions extends, side plate is that fore-and-aft direction extends, and biside plate is that left and right is oppositely arranged, up and down just to being provided with two rolling friction rods between biside plate, two rolling friction rods are all positioned at the front of backboard, form test specimen and insert chamber between two rolling friction rods and backboard; Described rolling friction rod is comprised about the one double thread bar extended and is arranged on the cylinder of double thread bar outer ring by bearing, the left and right sides of described double thread bar respectively with biside plate grafting, the jack of the interspersed double thread bar that described side plate is arranged is in the shape that turns round, and jack one end extends back, the other end upwards extends; Governor motion is provided with between the end of described double thread bar and backboard, the adjusting screw(rod) extended before and after described governor motion comprises, the abutment ring being installed in adjusting screw(rod) front end, the spring being set in adjusting screw(rod) outer ring and the setscrew nut be arranged on adjusting screw(rod), adjusting screw(rod) rear portion and backboard grafting, abutment ring is set in the outer ring of corresponding double thread bar, adjusting screw(rod) rear end extends on rear side of backboard, described setscrew nut is blocked on rear side of backboard, and described spring clamp is located between backboard and abutment ring.
2. pressure as claimed in claim 1 cuts cohesive strength test fixture, it is characterized in that: described side plate is vertical with backboard to be arranged, and side plate rear end is fixedly connected with backboard.
3. pressure as claimed in claim 1 cuts cohesive strength test fixture, it is characterized in that: double thread bar be provided be blocked in this double thread bar stop nut outside sheathed abutment ring.
4. pressure as claimed in claim 1 cuts cohesive strength test fixture, it is characterized in that: all arrange a governor motion between each end of each double thread bar and backboard.
5. pressure as claimed in claim 1 cuts cohesive strength test fixture, it is characterized in that: described setscrew nut is wing nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420715347.XU CN204330481U (en) | 2014-11-25 | 2014-11-25 | Pressure cuts cohesive strength test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420715347.XU CN204330481U (en) | 2014-11-25 | 2014-11-25 | Pressure cuts cohesive strength test fixture |
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| Publication Number | Publication Date |
|---|---|
| CN204330481U true CN204330481U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420715347.XU Active CN204330481U (en) | 2014-11-25 | 2014-11-25 | Pressure cuts cohesive strength test fixture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519326A (en) * | 2018-04-09 | 2018-09-11 | 三峡大学 | Core bar jacket bonding interface test device and detection method |
-
2014
- 2014-11-25 CN CN201420715347.XU patent/CN204330481U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519326A (en) * | 2018-04-09 | 2018-09-11 | 三峡大学 | Core bar jacket bonding interface test device and detection method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |