CN207007616U - A kind of fixture of GSZ tensile strength test - Google Patents
A kind of fixture of GSZ tensile strength test Download PDFInfo
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- CN207007616U CN207007616U CN201720972609.4U CN201720972609U CN207007616U CN 207007616 U CN207007616 U CN 207007616U CN 201720972609 U CN201720972609 U CN 201720972609U CN 207007616 U CN207007616 U CN 207007616U
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- tensile strength
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Abstract
A kind of fixture of GSZ tensile strength test,The fixture of the GSZ tensile strength test is installed on stretching-machine the fixed material that is stretched,Including the pedestal that GSZ is fixed on stretching-machine,The compression block of support GSZ side is fixedly installed on the pedestal and is arranged at GSZ opposite side,Coordinate the pressure block that GSZ is clamped close to compression block with pedestal sliding,The both ends of the GSZ are end,The compression block includes the clamping face being bonded with GSZ end,And the clamping face is arranged at respect to the conflict end on the lateral edges of drawing path direction one,The conflict end is provided with arc surface,The GSZ end is folded with and entered via end is contradicted in clamping face,It is bonded at the GSZ end folding with contradicting end arc surface,The conflict end compresses drive GSZ stretcher strain at the folding by being moved along drawing path.
Description
Technical field
It the utility model is related to a kind of fixture of GSZ, more particularly to a kind of GSZ tensile strength test
Fixture.
Background technology
GSZ is in highway in China, railway, municipal works, hydraulic engineering and industrial building as a kind of indispensable
Construction material and extensive use.It is commonly used for the muscle material of earth structure and used, it is therefore desirable to it is strong to possess certain tension
Degree, GSZ stretching-machine typically use fluid pressure type fixture or winding type clamping when doing the test of GSZ tensile strength.Its
The problem of existing be：Fluid pressure type fixture is difficult to accurate judgement its chucking power, because fluid pressure type fixture is directly closed by two clamping plates
Hold together pressure and clamp GSZ, easily cause retaining part GSZ and sheared fracture by fixture in stretching, and testing needs soil
Between the distal gripping portions of work grid two, the stage casing position of GSZ is broken to obtain ultimate tensile value, thus causes to test
Data distortion.Its grid end of winding type clamping can not be fixed very well, and winding shank diameter is too small, and steel can not be moulded to geotechnological lattice
Grid winding is closely knit, easily causes grid and prolongs axle rotation so as to which tension test elongation is excessive, test data distortion.And traditional folder
Tool relies solely on fixture block and the end of GSZ is clamped, and the pulling force that stretching-machine can only be offset by clamping force realizes fixation
The both ends of GSZ, therefore to tackle pulling force increase, it is necessary to be continuously increased clamping force, to fixture and drive fixture to close up clamping
Driving force have higher requirements, otherwise GSZ can be caused to be slipped from fixture.
The content of the invention
The utility model is in order to solve the deficiency of above-mentioned technology, there is provided it is steady that one kind can ensure that GSZ end clamps
Gu prevent the fixture for the GSZ tensile strength test that GSZ is broken in fixture.
The technical scheme of this real utility model：A kind of fixture of GSZ tensile strength test, the GSZ
The fixture of tensile strength test is installed on stretching-machine the fixed material that is stretched, including GSZ is fixed on stretching-machine
Pedestal, the compression block of support GSZ side is fixedly installed on the pedestal and is arranged at GSZ opposite side, with
Pedestal sliding coordinates the pressure block that GSZ is clamped close to compression block, and the both ends of the GSZ are end, the compression
Block includes the clamping face being bonded with GSZ end, and is arranged at the clamping face with respect on the lateral edges of drawing path direction one
End is contradicted, the conflict end is provided with arc surface, and the GSZ end is folded with and entered via end is contradicted in clamping face,
It is bonded at the GSZ end folding with contradicting end arc surface, the conflict end compresses the folding by being moved along drawing path
Folded place drives GSZ stretcher strain.
Using above-mentioned technical proposal, compression block is towards GSZ end and the end face that is bonded therewith is as clamping face, should
Clamping face drives fixture to drive the path direction side of GSZ stretching with respect to stretching-machine, and the clamping face edge of the side is provided with
End is contradicted, the conflict end surfaces are in arc surface, and the GSZ end is folded with and enters clamping face via end is contradicted
It is interior, be bonded, be arranged such with contradicting end arc surface at the GSZ end folding, the end of GSZ by clamping face and
The clamping of pressure block is fixed, and ensure that end is without departing from fixture or slip in drawing process, and is justified by the conflict end of setting
Cambered surface is contradicted at GSZ folding so that when fixture moves with stretching-machine, the arc surface for contradicting end is bonded and presses to geotechnological lattice
At the folding of grid, the stretching to GSZ applies power, is set because contradicting end in arc surface, at GSZ folding
Fitting avoids stress concentration, it is therefore prevented that GSZ is directly sheared by pressure block and compression block, is broken ground work in clamp strap
When grid stretches, strength, which is evenly distributed on, to be contradicted at end, rather than pressure block and compression block, therefore GSZ will not be because of shearing
And it is being broken in fixture.
And GSZ is redirected back into conflict end and first contradicts arc surface, then end is pressed from both sides by pressure-testing block and compression block clamping face
Tight setting so that the clamping force between pressure-testing block and compression block is bigger, if stretching-machine is F to the pulling force of GSZ, pressure testing
Block is N to the clamping force of compression block, and GSZ contradicts with arc surface, and its position tangent line angle tangent with arc surface is
, pulling force F can be analyzed to be tangential on component Fcos a little with contradicting end circular arc, pulling force F is bigger, component FcosIncrease therewith,
Component FcosDirect stress is formed with clamping force N, relatively reliable fixes GSZ, and the circle contacted with GSZ
Frictional force also increases with pulling force caused by cambered surface, further prevents GSZ from being slipped from fixture.
It is of the present utility model further to set：The pedestal is provided with the screw thread depression bar perpendicular to compression block clamping face, institute
State screw thread depression bar be movably set in pressure block be relatively distant from compression block side and with the side end face contradict, the pedestal opposite thread
Depression bar opening position is provided with screw thread hole seat, and the screw thread hole seat is provided with the screwed hole being adapted with screw thread depression bar, the screw thread depression bar
Coordinate with screwed hole screw thread, and coordinate driving screw thread depression bar to be moved towards clamping face direction by the screw thread.
Using above-mentioned technical proposal, by the screw thread hole seat on the screw thread depression bar and pedestal of setting, screw thread depression bar and screw thread
The screwed hole screw thread of hole seat, which coordinates, to rotate, by the direction for presetting screw thread depression bar and screwed hole so that screw thread depression bar hangs down
Directly in compression block clamping face, operating personnel are rotated by operating screw thread depression bar, and driving screw thread depression bar moves towards clamping face direction, supports
Contact application briquetting, so as to drive pressure block to be moved towards compression block clamping face, realization, which is closed up, clamps GSZ.
It is of the present utility model further to set：The conflict end arc surface and clamping face are tangent transition.
Using above-mentioned technical proposal so that seamlessly transitted between clamping face and conflict end arc surface, the folding of GSZ
Place will not have salient point because of clamping face and the transition face contradicted between the arc surface of end and cause stress concentration.
It is of the present utility model further to set：The other end end face of the compression block opposing grasping face is the back side, described to support
Contravention arc surface and back side intersection, the arc surface opposite back side plane protrusion are set.
Using above-mentioned technical proposal so that contradict end arc surface and compression block back side intersection, arc surface is put down higher than the back side
Face, GSZ can only be bonded tangent because this difference in height with arc surface, without touching the compression block back side, avoid
GSZ and the influence experimental conditions of compression block back side friction.
It is of the present utility model further to set：The pressure block towards and to contradict the end face of GSZ be rubbing surface, institute
State rubbing surface and be provided with friction pad.
Using above-mentioned technical proposal, friction pad is provided with rubbing surface so that GSZ end is by pressure block with being pressurized
When gripping of block, the coefficient of friction of contact surface is added, prevent GSZ from being skidded off between pressure block and compression block.
It is of the present utility model further to set：The friction pad is made up of the anti-skidding liner of quality of rubber materials.
Using above-mentioned technical proposal, friction pad is made using the anti-skidding liner of quality of rubber materials, frictional force is big, skidproof effect
It is good.
Brief description of the drawings
Fig. 1 is the structure chart 1 of the utility model embodiment；
Fig. 2 is the exploded view of the utility model embodiment；
Fig. 3 is the structure chart 2 of the utility model embodiment.
Embodiment
As Figure 1-3, a kind of fixture of GSZ tensile strength test, the GSZ tensile strength test
Fixture is installed on stretching-machine fixed be stretched material, including the pedestal 1 that GSZ is fixed on stretching-machine, described
The compression block 2 of support GSZ side is fixedly installed on pedestal 1 and is arranged at GSZ opposite side, is slid with pedestal 1
Coordinate the pressure block 3 that GSZ is clamped close to compression block 2, the both ends of the GSZ are end 4, and the compression block 2 wraps
The clamping face 21 being bonded with GSZ end 4 is included, and is arranged at the clamping face 21 with respect on the lateral edges of drawing path direction one
Conflict end 22, the conflict end 22 is provided with arc surface 221, and the GSZ end 4 is folded with and via conflict end 22
Into in clamping face 21,41 are bonded with contradicting the arc surface 221 of end 22 at the folding of GSZ end 4, and the conflict end 22 is logical
Cross to move along drawing path and compress 41 drive GSZ stretcher strain at the folding.
Compression block 2 is towards GSZ end 4 and the end face that is bonded therewith is as clamping face 21, and the clamping face 21 is relative to be drawn
The path direction side that machine drives fixture to drive GSZ stretching is stretched, the edge of clamping face 21 of the side, which is provided with, contradicts end 22,
The conflict surface of end 22 is in arc surface 221, and the GSZ end 4 is folded with and enters clamping face via end 22 is contradicted
In 21,41 are bonded with contradicting the arc surface 221 of end 22 at the folding of GSZ end 4, are arranged such, the end 4 of GSZ
Fixed by the clamping of clamping face 21 and the block 3 that presses, ensure that end 4 is without departing from fixture or slip in drawing process, and led to
Cross the arc surface 221 of conflict end 22 set to contradict 41 at GSZ folding so that when fixture moves with stretching-machine, contradict end 22
Arc surface 221 be bonded and press to 41 at the folding of GSZ, stretching to GSZ applies power, because contradicting end 22
Set in arc surface 221, be bonded with GSZ folding 41 and avoid stress concentration, it is therefore prevented that GSZ directly by
The shearing of pressure block 3 and compression block 2, when clamp strap moves GSZ stretching, strength, which is evenly distributed on, contradicts end 22, rather than
At pressure block 3 and compression block 2, therefore GSZ will not be broken because of shearing in fixture.
The pedestal 1 is provided with the screw thread depression bar 5 perpendicular to the clamping face 21 of compression block 2, and the activity of screw thread depression bar 5 is set
The side of compression block 2 is relatively distant from pressure block 3 and is contradicted with the side end face, and the opening position of 1 opposite thread depression bar of pedestal 5 is provided with
Screwed hole 61 6, the screwed hole are provided with the screwed hole 61 being adapted with screw thread depression bar 5, the screw thread depression bar 5 and spiral shell for 61 6
The screw thread of pit 61 coordinates, and coordinates driving screw thread depression bar 5 to be moved towards the direction of clamping face 21 by the screw thread.
By the screwed hole 61 6 on the screw thread depression bar 5 and pedestal 1 of setting, spiral shell that screw thread depression bar 5 and screwed hole are 61 6
The screw thread of pit 61, which coordinates, to rotate, by the direction for presetting screw thread depression bar 5 and screwed hole 61 so that screw thread depression bar 5 is vertical
In the clamping face 21 of compression block 2, operating personnel are rotated by operating screw thread depression bar 5, and driving screw thread depression bar 5 moves towards the direction of clamping face 21
It is dynamic, pressure block 3 is contradicted, so as to drive pressure block 3 to be moved towards the clamping face 21 of compression block 2, realization, which is closed up, clamps GSZ.
The arc surface 221 of conflict end 22 and clamping face 21 are tangent transition.
41 will not be because so that clamping face 21 and contradicting is seamlessly transitted between the arc surface 221 of end 22, at the folding of GSZ
Transition face between clamping face 21 and the conflict arc surface 221 of end 22 has that salient point causes stress concentration.
The other end end face of the opposing grasping face 21 of compression block 2 is the back side 23, the arc surface 221 of conflict end 22 and the back of the body
The intersection of face 23, the plane of 221 opposite back side of arc surface 23 protrusion are set.
So that the arc surface 221 of conflict end 22 and the intersection of 2 back side of compression block 23, arc surface 221 are higher than the plane of the back side 23, soil
Work grid can only be bonded tangent because this difference in height with arc surface 221, without touching the back side 23 of compression block 2, avoid
GSZ and the influence experimental conditions of compression block 2 back side 23 friction.
The pressure block 3 towards and to contradict the end face of GSZ be rubbing surface, the rubbing surface is provided with friction pad 7.
Friction pad 7 is provided with rubbing surface so that GSZ end 4 is gripped by pressure block 3 and compression block 2
When, the coefficient of friction of contact surface is added, prevents GSZ from being skidded off between pressure block 3 and compression block 2.
The friction pad 7 is made up of the anti-skidding liner of quality of rubber materials.
Friction pad 7 is made using the anti-skidding liner of quality of rubber materials, frictional force is big, good antiskid effect.
Claims (6)
1. a kind of fixture of GSZ tensile strength test, the fixture of the GSZ tensile strength test are installed on
Fixed be stretched material, including the pedestal that GSZ is fixed on stretching-machine, are fixedly installed on the pedestal on stretching-machine
There is the compression block of support GSZ side and be arranged at GSZ opposite side, coordinate with pedestal sliding and clamped close to compression block
The pressure block of GSZ, the both ends of the GSZ are end, it is characterised in that：The compression block includes and GSZ
The clamping face of end fitting, and the clamping face is arranged at respect to the conflict end on the lateral edges of drawing path direction one, the conflict
End is provided with arc surface, and the GSZ end is folded with and entered via end is contradicted in clamping face, the GSZ end
It is bonded at folding with contradicting end arc surface, the conflict end drives geotechnological lattice by moving to compress along drawing path at the folding
Grid stretcher strain.
A kind of 2. fixture of GSZ tensile strength test according to claim 1, it is characterised in that：The pedestal
The screw thread depression bar perpendicular to compression block clamping face is provided with, the screw thread depression bar is movably set in pressure block and is relatively distant from compression block
Side simultaneously contradicts with the side end face, and the pedestal opposite thread depression bar opening position is provided with screw thread hole seat, and the screw thread hole seat is provided with
The screwed hole being adapted with screw thread depression bar, the screw thread depression bar coordinate with screwed hole screw thread, and coordinate driving spiral shell by the screw thread
Line depression bar moves towards clamping face direction.
A kind of 3. fixture of GSZ tensile strength test according to claim 1 or 2, it is characterised in that：It is described
It is tangent transition that end arc surface, which is contradicted, with clamping face.
A kind of 4. fixture of GSZ tensile strength test according to claim 3, it is characterised in that：The compression
The other end end face of block opposing grasping face is the back side, and the conflict end arc surface and back side intersection, the arc surface is relative to be carried on the back
Facial plane protrusion is set.
A kind of 5. fixture of GSZ tensile strength test according to claim 4, it is characterised in that：The pressure
Block towards and to contradict the end face of GSZ be rubbing surface, the rubbing surface is provided with friction pad.
A kind of 6. fixture of GSZ tensile strength test according to claim 5, it is characterised in that：The friction
Pad is made up of the anti-skidding liner of quality of rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720972609.4U CN207007616U (en) | 2017-08-04 | 2017-08-04 | A kind of fixture of GSZ tensile strength test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720972609.4U CN207007616U (en) | 2017-08-04 | 2017-08-04 | A kind of fixture of GSZ tensile strength test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207007616U true CN207007616U (en) | 2018-02-13 |
Family
ID=61458614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720972609.4U Active CN207007616U (en) | 2017-08-04 | 2017-08-04 | A kind of fixture of GSZ tensile strength test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207007616U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374411A (en) * | 2018-11-05 | 2019-02-22 | 清华大学苏州汽车研究院（相城） | A kind of tensile test device of bending material |
| WO2020207365A1 (en) * | 2019-04-08 | 2020-10-15 | 山东路德新材料股份有限公司 | Carbon fiber grid tensile test fixing device |
| CN112683660A (en) * | 2020-12-09 | 2021-04-20 | 贵州大学 | Clamp for steel-plastic geogrid tensile test |
-
2017
- 2017-08-04 CN CN201720972609.4U patent/CN207007616U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374411A (en) * | 2018-11-05 | 2019-02-22 | 清华大学苏州汽车研究院（相城） | A kind of tensile test device of bending material |
| CN109374411B (en) * | 2018-11-05 | 2024-03-08 | 清华大学苏州汽车研究院（相城） | Tensile testing device for bending material |
| WO2020207365A1 (en) * | 2019-04-08 | 2020-10-15 | 山东路德新材料股份有限公司 | Carbon fiber grid tensile test fixing device |
| CN112683660A (en) * | 2020-12-09 | 2021-04-20 | 贵州大学 | Clamp for steel-plastic geogrid tensile test |
| CN112683660B (en) * | 2020-12-09 | 2023-09-26 | 贵州大学 | Clamp for steel-plastic geogrid tensile test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Nan Bai Xiang Zhen e Hu Cun Ouhai District of Zhejiang city in Wenzhou province 325000 Patentee after: Dawei Testing Technology Co., Ltd Address before: 325000 e Hu Cun, Nan Bai Xiang Zhen, Ouhai District, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG DAVID TESTING TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |