CN205786090U - Positioner for asphalt beam specimen repeated bend test - Google Patents
Positioner for asphalt beam specimen repeated bend test Download PDFInfo
- Publication number
- CN205786090U CN205786090U CN201620436780.9U CN201620436780U CN205786090U CN 205786090 U CN205786090 U CN 205786090U CN 201620436780 U CN201620436780 U CN 201620436780U CN 205786090 U CN205786090 U CN 205786090U
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- Prior art keywords
- beam specimen
- asphalt
- block
- asphalt beam
- specimen
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of positioner for asphalt beam specimen repeated bend test, including upper pressure head, lower seat and positioning clamping device, lower seat is provided with the support member for supporting asphalt beam specimen；Described positioning clamping device is installed on lower seat and positions asphalt beam specimen to both ends for corresponding asphalt beam specimen length, described upper pressure head is located at the top of lower seat for connecting charger and then loading asphalt beam specimen, positioner for asphalt beam specimen repeated bend test of the present utility model, in place of overcoming the deficiencies in the prior art, ensure the concordance of beam specimen circulation load-bearing position, reduce the positioning clamping device adverse effect to fatigue test simultaneously, improve accuracy and the stability of asphalt beam specimen repeated bend test.
Description
Technical field
This utility model relates to the auxiliary of asphalt and manufactures field, particularly relates to a kind of for asphalt beam type
The positioner of test specimen repeated bend test.
Background technology
When asphalt is applied to bituminous paving, the fatigue behaviour of asphalt and bituminous paving is that research worker is closed
The main points of note.The most quite varied to the research of fatigue performance of asphalt mixture, the test method of the outer main flow of Present Domestic is little
The four-point bending fatigue test of beam test specimen, yet with the viscoelastic plasticity of this particulate matter of asphalt, this test method
On the one hand there is the drawback that test data discreteness is big, on the other hand cannot characterize structural parameters to drip owing to sample dimensions limits
The impact of blue or green pavement fatigue performance.Research further for bituminous paving fatigue behaviour then relies on the acceleration of full size bituminous paving
Load test, test period length, costly, popularization and application are poor.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of for asphalt beam specimen repeated bend test
Positioner, in place of overcoming the deficiencies in the prior art, it is ensured that the concordance of beam specimen circulation load-bearing position, to reduce fixed simultaneously
Position the clamping device adverse effect to fatigue test, improve asphalt beam specimen repeated bend test accuracy and
Stability.
Positioner for asphalt beam specimen repeated bend test of the present utility model, presses including top
Head, lower seat and positioning clamping device, lower seat is provided with the support member for supporting asphalt beam specimen；Institute
State positioning clamping device be installed on lower seat for corresponding asphalt beam specimen length to both ends to asphalt
Beam specimen positions, and described upper pressure head is located at the top of lower seat for connecting charger and then mixing Colophonium
Material beam specimen loads.
Further, described upper pressure head includes force-transmitting block, top pressure-bearing rod；The top of described force-transmitting block is provided with mounting seat；
Described top pressure-bearing rod is fixed on bottom force-transmitting block along asphalt beam specimen lateral arrangement and embedding.
Further, described lower seat includes two of horizontally arranged layout blocks and arranges with a block one_to_one corresponding
Contiguous block, described support member is for being fixed on a block top along asphalt beam specimen lateral arrangement and embedding one to one
The bottom pressure-bearing rod in portion；Described contiguous block along asphalt beam specimen length to being fixed on outside block for connecting locating clip
Tight device.
Further, described positioning clamping device includes main positioning clamping device and the pair location arranged with a block one_to_one corresponding
Clamping device；Described main positioning clamping device includes main support, main locating piece and homophony pole；Described main locating piece includes rubber
Bar and location round bar；Main support is fixed on a block side in the way of just to asphalt beam specimen end face, rubber strip and
Homophony pole is installed on main support, and location round bar embeds and is fixed on rubber strip, controls rubber strip by homophony pole and mixes to Colophonium
The distance closing material beam specimen end face realizes carrying out along asphalt beam specimen length to asphalt beam specimen
Location；Described secondary positioning clamping device includes assistant support, secondary locating piece and secondary adjusting rod；Described secondary locating piece include block rubber and
Location ball；Assistant support is fixed on contiguous block in the way of cincture asphalt beam specimen leading flank, trailing flank and end face,
Leading flank, trailing flank or end face that block rubber and secondary adjusting rod are multiple and corresponding asphalt beam specimen are installed on
Assistant support, location ball embeds and is fixed on corresponding block rubber, controls corresponding block rubber to asphalt beam by secondary adjusting rod
The distance of formula test specimen realizes laterally positioning asphalt beam specimen along asphalt beam specimen.
Further, described block symmetrical be positioned on outer base and coordinated by screw rod and hole, location carry out solid
Fixed, described contiguous block is fixed on a block side by screw rod and the cooperation of hole, location.
Further, being equipped with rectangle steel disc between described rubber strip with corresponding main support, rubber strip is adhesively fixed in phase
Answering rectangle steel disc, the bottom of rectangle steel disc to be fixed on main support, homophony pole is located at the top of rectangle steel disc and is connected by screw thread
It is connected to main support for by rectangle steel disc top jack-up.
Further, described secondary adjusting rod is threadingly attached to assistant support and secondary adjusting rod is perpendicular to asphalt beam
The respective surfaces of formula test specimen, described block rubber is fixed on the inner of secondary adjusting rod, is provided with between block rubber and corresponding secondary adjusting rod
Circular steel disc.
Further, described top pressure-bearing rod and bottom pressure-bearing rod are cylinder roller bearing, and cylinder roller bearing is a diameter of
10mm。
The beneficial effects of the utility model are: of the present utility model for asphalt beam specimen repeated bend test
Positioner, in place of overcoming the deficiencies in the prior art, it is ensured that the concordance of beam specimen circulation load-bearing position, to reduce fixed simultaneously
Position the clamping device adverse effect to fatigue test, improve asphalt beam specimen repeated bend test accuracy and
Stability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the left view of Fig. 1.
Detailed description of the invention
Fig. 1 is structural representation of the present utility model；Fig. 2 is the left view of Fig. 1, as shown in the figure: being used for of the present embodiment
The positioner of asphalt beam specimen repeated bend test, including upper pressure head, lower seat and positioning clamping device,
Lower seat is provided with the support member for supporting asphalt beam specimen 15；Described positioning clamping device is installed on bottom
Asphalt beam specimen 15 is positioned to both ends by bearing for corresponding asphalt beam specimen 15 length, described
Upper pressure head is located at the top of lower seat for connecting charger and then loading asphalt beam specimen 15, this reality
Execute in place of example can overcome the deficiencies in the prior art, it is ensured that beam specimen 15 circulates the concordance of load-bearing position, and to reduce fixed simultaneously
The position clamping device adverse effect to fatigue test, improves the accuracy of asphalt beam specimen 15 repeated bend test
And stability.
In the present embodiment, described upper pressure head includes force-transmitting block 1, top pressure-bearing rod 2；The top of described force-transmitting block 1 is provided with
Mounting seat 3；Described top pressure-bearing rod 2 is fixed on force-transmitting block 1 end along asphalt beam specimen 15 lateral arrangement and embedding
Portion, the mounting seat 3 of upper pressure head is connected with external load device by screw thread, and upper pressure head is by top pressure-bearing rod 2 contact drip
Blue or green compound beam specimen 15, forms linear contact lay, reduces tired between top pressure-bearing rod 2 and asphalt beam specimen 15
The adverse effect of labor test.
In the present embodiment, described lower seat include two of horizontally arranged layout blocks 4 and with block 4 one_to_one corresponding
The contiguous block 5 arranged, described support member is along asphalt beam specimen 15 lateral arrangement and to embed solid one to one
Bottom pressure-bearing rod 6 due to block 4 top；Described contiguous block 5 is long to being fixed on outside a block 4 along asphalt beam specimen 15
Side is used for connecting positioning clamping device, and the two ends of two the corresponding asphalt beam specimen 15 of block 4 are arranged, and are used for supporting drip
Two ends of blue or green compound beam specimen 15, two blocks 4 are fixed on pedestal or testing stand by screw rod, adjust as required
Distance between whole two blocks 4, it is possible to meeting test requirements document, test specimen 15 is supported by a block 4 by bottom pressure-bearing rod 6,
Therefore form linear contact lay with test specimen 15 straight line, reduce the adverse effect to fatigue test.
In the present embodiment, described positioning clamping device include the main positioning clamping device that arranges with block 4 one_to_one corresponding and
Secondary positioning clamping device；Described main positioning clamping device includes main support 7, main locating piece and homophony pole 8；Described main locating piece
Including rubber strip 9 and location round bar 10；Main support 7 is fixed on a block in the way of just to asphalt beam specimen 15 end face
4 sides, rubber strip 9 and homophony pole 8 are installed on main support 7, and location round bar 10 embeds and is fixed on rubber strip 9, passes through main regulation
Bar 8 controls rubber strip 9 and realizes along asphalt beam specimen 15 long to the distance of asphalt beam specimen 15 end face
Position to asphalt beam specimen 15；Described secondary positioning clamping device includes assistant support 11, secondary locating piece and pair
Adjusting rod 12；Described secondary locating piece includes block rubber 13 and location ball 14；Assistant support 11 is to try around asphalt beam type
The mode of part 15 leading flank, trailing flank and end face is fixed on contiguous block 5, block rubber 13 and secondary adjusting rod 12 and is multiple and right
Answering the leading flank of asphalt beam specimen 15, trailing flank or end face to be installed on assistant support 11, location ball 14 embeds fixing
In corresponding block rubber 13, control corresponding block rubber 13 by secondary adjusting rod 12 next real to the distance of asphalt beam specimen 15
Now laterally asphalt beam specimen 15 is positioned along asphalt beam specimen 15.
In the present embodiment, described block 4 is symmetrical to be positioned on outer base and is fitted into by screw rod and hole, location
Going fixing, described contiguous block 5 is fixed on block 4 side by screw rod and the cooperation of hole, location, and hole, location is respectively provided with multiple making and props up
Distance between block 4 and the height adjustable of contiguous block 5, can adjust block 4 and the position of contiguous block 5, an adaptability as required
By force.
In the present embodiment, being equipped with rectangle steel disc between described rubber strip 9 with corresponding main support 7, rubber strip 9 bonding is solid
Due to respective rectangular steel disc, main support 7 is fixed in the bottom of rectangle steel disc, and homophony pole 8 is located at the top of rectangle steel disc and leads to
Crossing and be threadedly connected to main support 7 for by rectangle steel disc top jack-up, rectangle steel disc utilizes the deformation behavior of himself to enter
Horizontal reset, effectively adjusts position location, the compressible performance of bound rubber bar 9, it is achieved to test specimen 15 under the effect of elastic force
Position, the deformation of test specimen 15 can be adapted within the specific limits, it is ensured that the position stability to test specimen 15.
In the present embodiment, described secondary adjusting rod 12 is threadingly attached to assistant support 11 and secondary adjusting rod 12 is perpendicular to
The respective surfaces of asphalt beam specimen 15, described block rubber 13 is fixed on the inner of secondary adjusting rod 12, block rubber 13 with
It is provided with circular steel disc, the compressible performance of bound rubber block 13, it is achieved under the effect of elastic force between corresponding secondary adjusting rod 12
Test specimen 15 is positioned, the deformation of test specimen 15 can be adapted within the specific limits, it is ensured that the position stability to test specimen 15.
In the present embodiment, described top pressure-bearing rod 2 and bottom pressure-bearing rod 6 are cylinder roller bearing, and cylinder roller bearing is straight
Footpath is 10mm, and during loading, test specimen 15 mainly by support force and the pressure of top pressure-bearing rod 2 of bottom pressure-bearing rod 6, uses cylinder
Body roller bearing makes to be formed between they and test specimen 15 linear contact lay, good stability as top pressure-bearing rod 2 and bottom pressure-bearing rod 6, can fit
Answer the deformation of test specimen 15, it is ensured that beam specimen 15 circulates the concordance of load-bearing position, reduce positioning clamping device to fatigue simultaneously
The adverse effect of test, improves accuracy and the stability of asphalt beam specimen 15 repeated bend test, justifies simultaneously
Cylinder roller bearing convenient processing and manufacture, is beneficial to reduce cost.
Finally illustrating, above example is only in order to illustrate the technical solution of the utility model and unrestricted, although ginseng
According to preferred embodiment, this utility model is described in detail, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent, without deviating from objective and the model of technical solutions of the utility model
Enclosing, it all should be contained in the middle of right of the present utility model.
Claims (8)
1. the positioner for asphalt beam specimen repeated bend test, it is characterised in that: include that top is pressed
Head, lower seat and positioning clamping device, lower seat is provided with the support member for supporting asphalt beam specimen；Institute
State positioning clamping device be installed on lower seat for corresponding asphalt beam specimen length to both ends to asphalt
Beam specimen positions, and described upper pressure head is located at the top of lower seat for connecting charger and then mixing Colophonium
Material beam specimen loads.
Positioner for asphalt beam specimen repeated bend test the most according to claim 1, its feature
It is: described upper pressure head includes force-transmitting block, top pressure-bearing rod；The top of described force-transmitting block is provided with mounting seat；Described top is held
Depression bar is fixed on bottom force-transmitting block along asphalt beam specimen lateral arrangement and embedding.
Positioner for asphalt beam specimen repeated bend test the most according to claim 2, its feature
It is: described lower seat includes that two of horizontally arranged layout are propped up blocks and the contiguous block arranged with a block one_to_one corresponding, institute
Stating support member is to be fixed on the bottom at a block top along asphalt beam specimen lateral arrangement and embedding one to one
Pressure-bearing rod；Described contiguous block along asphalt beam specimen length to being fixed on outside block for connecting positioning clamping device.
Positioner for asphalt beam specimen repeated bend test the most according to claim 3, its feature
It is: described positioning clamping device includes main positioning clamping device and the pair positioning clamping device arranged with a block one_to_one corresponding；
Described main positioning clamping device includes main support, main locating piece and homophony pole；Described main locating piece includes rubber strip and location
Round bar；Main support is fixed on a block side, rubber strip and homophony pole in the way of just to asphalt beam specimen end face
Being installed on main support, location round bar embeds and is fixed on rubber strip, controls rubber strip to asphalt beam type by homophony pole
The distance of test specimen end face realizes positioning along asphalt beam specimen length to asphalt beam specimen；Described
Secondary positioning clamping device includes assistant support, secondary locating piece and secondary adjusting rod；Described secondary locating piece includes block rubber and location ball；
Assistant support to be fixed on contiguous block in the way of asphalt beam specimen leading flank, trailing flank and end face, block rubber and
Leading flank, trailing flank or end face that secondary adjusting rod is multiple and corresponding asphalt beam specimen are installed on assistant support,
Location ball embeds and is fixed on corresponding block rubber, controls corresponding block rubber to asphalt beam specimen by secondary adjusting rod
Distance realizes laterally positioning asphalt beam specimen along asphalt beam specimen.
Positioner for asphalt beam specimen repeated bend test the most according to claim 3, its feature
It is: described block be symmetrical to be positioned on outer base and coordinated by screw rod and hole, location and be fixed, described connection
Block is fixed on a block side by screw rod and the cooperation of hole, location.
Positioner for asphalt beam specimen repeated bend test the most according to claim 4, its feature
Being: be equipped with rectangle steel disc between described rubber strip with corresponding main support, rubber strip is adhesively fixed in respective rectangular steel disc,
Main support is fixed in the bottom of rectangle steel disc, and homophony pole is located at the top of rectangle steel disc and is threadingly attached to main support use
In by rectangle steel disc top jack-up.
Positioner for asphalt beam specimen repeated bend test the most according to claim 4, its feature
It is: described secondary adjusting rod is threadingly attached to assistant support and secondary adjusting rod is perpendicular to the phase of asphalt beam specimen
Answer surface, described block rubber to be fixed on the inner of secondary adjusting rod, between block rubber and corresponding secondary adjusting rod, be provided with circular steel disc.
Positioner for asphalt beam specimen repeated bend test the most according to claim 3, its feature
It is: described top pressure-bearing rod and bottom pressure-bearing rod are cylinder roller bearing, and a diameter of 10mm of cylinder roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620436780.9U CN205786090U (en) | 2016-05-13 | 2016-05-13 | Positioner for asphalt beam specimen repeated bend test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620436780.9U CN205786090U (en) | 2016-05-13 | 2016-05-13 | Positioner for asphalt beam specimen repeated bend test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205786090U true CN205786090U (en) | 2016-12-07 |
Family
ID=57410049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620436780.9U Withdrawn - After Issue CN205786090U (en) | 2016-05-13 | 2016-05-13 | Positioner for asphalt beam specimen repeated bend test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205786090U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842058A (en) * | 2016-05-13 | 2016-08-10 | 重庆交通大学 | Asphalt mixture beam specimen bending fatigue test fixture |
| CN106680083A (en) * | 2016-12-26 | 2017-05-17 | 中国电力科学研究院 | Testing device for treading fatigue of tension composite insulator |
| CN109649682A (en) * | 2018-10-31 | 2019-04-19 | 中国飞机强度研究所 | A kind of 3 points of wingbar curved Buckling Fatigue Testing fixtures |
-
2016
- 2016-05-13 CN CN201620436780.9U patent/CN205786090U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842058A (en) * | 2016-05-13 | 2016-08-10 | 重庆交通大学 | Asphalt mixture beam specimen bending fatigue test fixture |
| CN105842058B (en) * | 2016-05-13 | 2019-01-18 | 重庆交通大学 | Asphalt beam specimen repeated bend test fixture |
| CN106680083A (en) * | 2016-12-26 | 2017-05-17 | 中国电力科学研究院 | Testing device for treading fatigue of tension composite insulator |
| CN109649682A (en) * | 2018-10-31 | 2019-04-19 | 中国飞机强度研究所 | A kind of 3 points of wingbar curved Buckling Fatigue Testing fixtures |
| CN109649682B (en) * | 2018-10-31 | 2022-08-09 | 中国飞机强度研究所 | Three-point bending and buckling fatigue test fixture for wing beam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161207 Effective date of abandoning: 20190118 |
|
| AV01 | Patent right actively abandoned |