CN217384994U - Variable-angle multi-section annular shear test fixture - Google Patents
Variable-angle multi-section annular shear test fixture Download PDFInfo
- Publication number
- CN217384994U CN217384994U CN202220944571.0U CN202220944571U CN217384994U CN 217384994 U CN217384994 U CN 217384994U CN 202220944571 U CN202220944571 U CN 202220944571U CN 217384994 U CN217384994 U CN 217384994U
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- shaped
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- shear test
- stabilizer
- test fixture
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- 238000012360 testing method Methods 0.000 title claims abstract description 79
- 239000003381 stabilizer Substances 0.000 claims abstract description 36
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 238000010008 shearing Methods 0.000 abstract description 14
- 230000008859 change Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000001932 seasonal effect Effects 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
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- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a mechanical test tests technical field, discloses a become many cross-sections of angle annular shear test anchor clamps, including cross U-shaped support and annular stabilizer, annular stabilizer is located the inside of cross U-shaped support, the equidistance is provided with the first screw hole of a plurality of on the outer wall of annular stabilizer, the inner disc middle part of annular stabilizer is provided with square groove, square groove's inside both sides all are provided with the second screw hole. The utility model discloses in, the test fixture cooperation universal tester uses, can change the height of annular stabilizer through the position of adjusting first bolt in first spout, and the inner disc of annular stabilizer can carry out the multi-angle rotation, and when shearing the testpieces in the anchor clamps that appear to L, the L clamp of both sides can provide vertical load and side direction restraint for the testpieces simultaneously for the testpieces atress is even, avoids appearing stress concentration's the condition, has improved shear test's precision and efficiency.
Description
Technical Field
The utility model relates to a mechanical test technical field especially relates to a become many cross-sections of angle annular shear test anchor clamps.
Background
Seasonal frozen soil is widely distributed in China, engineering structures in regions are seriously damaged by seasonal periodic circulation of winter freezing and summer thawing, particularly in the channel engineering part, aiming at the problem of frost heaving and slip of channels in the seasonal frozen soil region, on the basis of the measure of frost heaving prevention of the polystyrene heat-insulating plate, ceramsite epoxy resin cement is used as a bonding material for the polystyrene heat-insulating plate and the lining concrete plate, and the good bonding property of epoxy resin is utilized to improve the bonding property of the two materials, so that the frost heaving resistance and the slip resistance of the channel are improved.
When the bonding material is developed, the test matched with the structural performance of the material must be carried out synchronously, so that the mechanical performance of the material needs to be tested to obtain certain test data, the shearing angle of the existing test fixture is easily limited when the shearing test is carried out, meanwhile, the stress is easily uneven when the test piece is clamped, the common fixture easily causes the problem that the stress of the test piece is concentrated when the shearing test is carried out, and the test result of the shearing test is not accurate enough.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the annular shear test anchor clamps of a variable angle many cross-sections that provide.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a variable-angle multi-section annular shear test fixture comprises a cross U-shaped support and an annular stabilizer, wherein the annular stabilizer is positioned inside the cross U-shaped support, a plurality of first threaded holes are equidistantly formed in the outer wall of the annular stabilizer, a square groove is formed in the middle of an inner disc of the annular stabilizer, second threaded holes are formed in two sides of the inside of the square groove, first sliding grooves are formed in the periphery of the cross U-shaped support, first bolts are arranged inside the first sliding grooves, threaded ends of the first bolts are in threaded connection with the inside of the first threaded holes, a first gasket is arranged on one side, close to a nut, of the outer wall of each first bolt, a second bolt is in threaded connection with the inside of each second threaded hole, a second gasket is arranged on one side, close to the nut, of the outer wall of each second bolt, and L-shaped fixtures are arranged on two sides of the inside of the annular stabilizer, and a second sliding groove is formed in the L-shaped clamp.
As a further description of the above technical solution:
and a scale is arranged on one side of the cross U-shaped support.
As a further description of the above technical solution:
the bottom end of the cross U-shaped support is fixedly connected with a stabilizing disc, and the bottom end of the stabilizing disc is provided with an anti-skid rubber mat.
As a further description of the above technical solution:
the width of four sides of the cross U-shaped support is 3-4 cm larger than that of the first sliding groove, and the width of the L-shaped clamp is 3-4 cm larger than that of the second sliding groove.
As a further description of the above technical solution:
the width of the first sliding groove is 1-1.5 mm larger than the diameter of the first bolt, and the width of the second sliding groove is 1-1.5 mm larger than the diameter of the second bolt.
As a further description of the above technical solution:
the sum of the thickness from the middle parts of the four sides of the square groove to the outer wall of the inner disc and the thickness of the L-shaped clamp is 0.5-1 cm larger than the length of the second bolt.
As a further description of the above technical solution:
the threaded end of the first bolt is respectively connected inside the first sliding groove on the same side in a sliding mode, and the threaded end of the second bolt is respectively connected inside the second sliding groove on the same side in a sliding mode.
As a further description of the above technical solution:
the L-shaped clamps on the two sides are symmetrically arranged by taking the diagonal line of the side surface as a reference.
The utility model discloses following beneficial effect has:
1. the utility model discloses in, test fixture is when using, need cooperate universal tester to use, at first according to the thickness of test piece toward the screw thread end of second bolt increase the second gasket, make inside L shape anchor clamps of annular stabilizer and test piece laminating, can change the height of annular stabilizer on cross U-shaped support through the position of adjusting first bolt in first spout, and then the position height of synchronous change L shape anchor clamps, the inner disc through annular stabilizer carries out the rotation of multi-angle, the turned angle that can change L shape anchor clamps in step, it is more nimble to make universal tester to the shearing angle of L clamp internal test piece, a structure is simple, and the installation and the dismantlement are convenient.
2. The utility model discloses in, when shearing the test piece in the anchor clamps that appear to L through universal tester, the L clamp of both sides provides vertical load and side direction restraint for the test piece simultaneously, prevent that the test piece from taking place deformation, cause the influence to shear surface intensity, make the test piece atress even in the experimentation, avoid appearing stress concentration's the condition, more be close pure failure test of cuting, reduce the influence that material self deformation brought for shear test, make the test result more accurate, be favorable to improving shear test's precision and efficiency.
Drawings
Fig. 1 is a perspective view of a variable-angle multi-section annular shear test fixture provided by the present invention;
fig. 2 is a side view of a variable-angle multi-section annular shear test fixture provided by the present invention;
fig. 3 is an exploded view of the variable angle multi-section annular shear test fixture provided by the present invention;
fig. 4 is a top view of a variable-angle multi-section annular shear test fixture provided by the present invention;
fig. 5 is a three-dimensional bottom view of the variable-angle multi-section annular shear test fixture provided by the utility model.
Illustration of the drawings:
1. a cross U-shaped support; 2. a first chute; 3. an annular stabilizer; 4. a first threaded hole; 5. a first bolt; 6. a first gasket; 7. an L-shaped clamp; 8. an anti-slip rubber pad; 9. a graduated scale; 10. a second bolt; 11. a second gasket; 12. a second chute; 13. a second threaded hole; 14. a stabilizing disc; 15. a square groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
Referring to fig. 1-5, the present invention provides an embodiment: a variable-angle multi-section annular shear test fixture comprises a cross U-shaped support 1 and an annular stabilizer 3, wherein the annular stabilizer 3 is positioned inside the cross U-shaped support 1, the cross U-shaped support 1 mainly plays a role in supporting the annular stabilizer 3, the annular stabilizer 3 comprises an outer ring, an inner disc and a plurality of balls, the main structural form of the fixture is similar to that of a ball bearing, the main structural form of the fixture is used for providing rotation capacity for an L-shaped clamp 7, so that the rotation angle of the L-shaped clamp 7 can be freely adjusted, the L-shaped clamp is made of Q235 steel, the strength of the fixture does not deform violently under the action of vertical load, a plurality of first threaded holes 4 are equidistantly arranged on the outer wall of the annular stabilizer 3, a square groove 15 is arranged in the middle of the inner disc of the annular stabilizer 3, second threaded holes 13 are respectively arranged on two sides inside the square groove 15, first sliding grooves 2 are respectively arranged on the periphery of the cross U-shaped support 1, the first sliding groove 2 is internally provided with a first bolt 5, the height of the annular stabilizer 3 can be adjusted through the first sliding groove 2 and the first bolt 5, the threaded end of the first bolt 5 is in threaded connection with the inside of the first threaded hole 4, one side of the outer wall of the first bolt 5, which is close to the nut, is provided with a first gasket 6, the first gasket 6 is made of rubber, plastic and other materials with certain elasticity and mainly has the functions of increasing friction force and preventing the first bolt 5 from shifting in the first sliding groove 2 when the test fixture works, the inside of the second threaded hole 13 is in threaded connection with a second bolt 10, one side of the outer wall of the second bolt 10, which is close to the nut, is provided with a second gasket 11, the second gasket 11 mainly has the functions of increasing the distance between the inner wall of the annular stabilizer 3 and the L-shaped fixture 7 and finely adjusting the distance between the L-shaped fixture 7 and a test piece, the two sides of the inside of the annular stabilizer 3 are both provided with L-shaped clamps 7, the L-shaped clamps 7 are provided with second sliding grooves 12, the second bolts 10 on the two sides respectively penetrate through the second sliding grooves 12 on the same side and are in threaded connection with the second threaded holes 13 on the same side, and the two L-shaped clamps 7 can be fixed on the two sides of the inner wall of the annular stabilizer 3.
One side of the cross U-shaped support 1 is provided with a scale 9, the positions of the annular stabilizer 3 and the L-shaped fixture 7 can be conveniently observed by an operator through the scale 9, a stabilizing disc 14 is fixedly connected to the bottom end of the cross U-shaped support 1, the cross U-shaped support 1 can be more stable through the stabilizing disc 14, an anti-skid rubber pad 8 is arranged at the bottom end of the stabilizing disc 14, the friction force between the cross U-shaped support 1 and the contact position of a universal testing machine can be increased through the anti-skid rubber pad 8, the test fixture is prevented from shifting during working, the width of four sides of the cross U-shaped support 1 is 3-4 cm larger than that of the first sliding groove 2, the width of the L-shaped fixture 7 is 3-4 cm larger than that of the second sliding groove 12, the width of the first sliding groove 2 is 1-1.5 mm larger than that of the first bolt 5, the width of the second sliding groove 12 is 1-1.5 mm larger than that of the second bolt 10, the sum of the thickness of the middle part of the four sides of the square groove 15 to the outer wall of the inner disc and the thickness of the L-shaped fixture 7 is 0.5 length of the second bolt 10 And the threaded ends of the first bolts 5 are respectively and slidably connected inside the first sliding grooves 2 on the same side, the threaded ends of the second bolts 10 are respectively and slidably connected inside the second sliding grooves 12 on the same side, the L-shaped clamps 7 on the two sides are symmetrically arranged by taking a side diagonal line as a reference, when a test piece is clamped, one side of one L-shaped clamp 7 plays a role in pressing the top surface of the test piece, and one side of the other L-shaped clamp 7 plays a role in supporting the test piece.
The working principle is as follows: when the test fixture is used, the test fixture is matched with a universal testing machine for use, firstly, a second gasket 11 is added to the threaded end of a second bolt 10 according to the thickness of a test piece, an L-shaped fixture 7 inside an annular stabilizer 3 is attached to the test piece, the height of the annular stabilizer 3 on a cross U-shaped support 1 can be changed by adjusting the position of a first bolt 5 in a first sliding groove 2, the height of an L-shaped fixture 7 is further changed synchronously, the angle of the L-shaped fixture 7 can be changed synchronously by rotating an inner disc of the annular stabilizer 3 in multiple angles, the shearing angle of the universal testing machine to the test piece is more flexible, the universal testing machine is simple in structure and convenient to mount and dismount, then the whole fixture is placed on a working table of the universal testing machine, the position of a shearing knife edge of the universal testing machine is adjusted according to the position of the test piece, then an oil pump motor is started, and the loading speed required by the test is increased, slowly unscrewing an oil delivery valve to carry out loading test, enabling a shearing cutter head to align with a test piece on an L-shaped clamp 7 to apply pressure, paying attention to whether the position of the test piece deviates or not in the whole process, if the fixed position is not in place, readjusting is needed, closing the oil valve after the test piece is damaged and broken by a shearing cutter, stopping an oil pump motor, recording information data during the test, then taking the broken test piece off from the L-shaped clamp 7 to finish the whole test process, in the shearing process, the L-shaped clamps 7 on two sides simultaneously provide vertical load and lateral constraint for the test piece, preventing the test piece from deforming and influencing the shear surface strength, enabling the stress of the test piece to be uniform in the test process, avoiding the condition of stress concentration, being closer to the damage test of pure shearing, reducing the influence on the shearing test caused by the deformation of the material, and enabling the test result to be more accurate, the scale ruler 9 is located on one side of the cross U-shaped support 1, so that an operator can observe the position heights of the L-shaped clamp 7 and the annular stabilizer 3 conveniently.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (8)
1. The utility model provides a become many cross-sections annular shear test anchor clamps of angle, includes cross U-shaped support (1) and annular stabilizer (3), its characterized in that: the ring-shaped stabilizer (3) is positioned inside the cross U-shaped support (1), a plurality of first threaded holes (4) are equidistantly arranged on the outer wall of the ring-shaped stabilizer (3), a square groove (15) is arranged in the middle of an inner disc of the ring-shaped stabilizer (3), second threaded holes (13) are respectively arranged on two sides of the inside of the square groove (15), first sliding grooves (2) are respectively arranged on the periphery of the cross U-shaped support (1), first bolts (5) are arranged inside the first sliding grooves (2), threaded end threads of the first bolts (5) are connected inside the first threaded holes (4), a first gasket (6) is arranged on one side, close to the nut, of the outer wall of the first bolts (5), a second bolt (10) is connected to the inner threads of the second threaded holes (13), and a second gasket (11) is arranged on one side, close to the nut, of the outer wall of the second bolt (10), the annular stabilizer is characterized in that L-shaped clamps (7) are arranged on two sides of the interior of the annular stabilizer (3), and second sliding grooves (12) are formed in the L-shaped clamps (7).
2. The variable angle multi-section annular shear test fixture of claim 1, wherein: and a graduated scale (9) is arranged on one side of the cross U-shaped support (1).
3. The variable angle multi-section annular shear test fixture of claim 1, wherein: the bottom end of the cross U-shaped support (1) is fixedly connected with a stabilizing disc (14), and the bottom end of the stabilizing disc (14) is provided with an anti-skid rubber pad (8).
4. The variable angle multi-section annular shear test fixture of claim 1, wherein: the width of four sides of the cross U-shaped support (1) is 3-4 cm larger than that of the first sliding groove (2), and the width of the L-shaped clamp (7) is 3-4 cm larger than that of the second sliding groove (12).
5. The variable angle multi-section annular shear test fixture of claim 1, wherein: the width of the first sliding groove (2) is 1-1.5 mm larger than the diameter of the first bolt (5), and the width of the second sliding groove (12) is 1-1.5 mm larger than the diameter of the second bolt (10).
6. The variable angle multi-section annular shear test fixture of claim 1, wherein: the sum of the thickness from the middle parts of the four sides of the square groove (15) to the outer wall of the inner disc and the thickness of the L-shaped clamp (7) is 0.5-1 cm longer than the length of the second bolt (10).
7. The variable angle multi-section annular shear test fixture of claim 1, wherein: the threaded ends of the first bolts (5) are respectively connected inside the first sliding grooves (2) on the same side in a sliding mode, and the threaded ends of the second bolts (10) are respectively connected inside the second sliding grooves (12) on the same side in a sliding mode.
8. The variable angle multi-section annular shear test fixture of claim 1, wherein: the L-shaped clamps (7) on the two sides are symmetrically arranged by taking the diagonal line of the side surface as a reference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220944571.0U CN217384994U (en) | 2022-04-22 | 2022-04-22 | Variable-angle multi-section annular shear test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220944571.0U CN217384994U (en) | 2022-04-22 | 2022-04-22 | Variable-angle multi-section annular shear test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217384994U true CN217384994U (en) | 2022-09-06 |
Family
ID=83108719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220944571.0U Expired - Fee Related CN217384994U (en) | 2022-04-22 | 2022-04-22 | Variable-angle multi-section annular shear test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217384994U (en) |
-
2022
- 2022-04-22 CN CN202220944571.0U patent/CN217384994U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20220906 |