CN106840861A - Dynamic rock mechanics tests various sizes of sample positioning device - Google Patents
Dynamic rock mechanics tests various sizes of sample positioning device Download PDFInfo
- Publication number
- CN106840861A CN106840861A CN201710025936.3A CN201710025936A CN106840861A CN 106840861 A CN106840861 A CN 106840861A CN 201710025936 A CN201710025936 A CN 201710025936A CN 106840861 A CN106840861 A CN 106840861A
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- China
- Prior art keywords
- adjustable
- guide rail
- level
- vertical
- side plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000012360 testing method Methods 0.000 title claims abstract description 55
- 239000011435 rock Substances 0.000 title claims abstract description 15
- 239000007787 solid Substances 0.000 claims 1
- 238000005266 casting Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 230000007812 deficiency Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007786 learning performance Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
Abstract
A kind of dynamic rock mechanics tests various sizes of sample positioning device, including radially adjustable component and longitudinally adjustable component, the radially adjustable component includes the adjustable groove backing plate of level, vertical adjustable side plate and the first antifriction apparatus, rotatable screw rod is installed on the vertical adjustable side plate, the upper end of the screw rod is installed by lift adjustment handle, nut seat is installed on the screw rod, the nut seat is connected with the first antifriction apparatus, first antifriction apparatus can slide up and down to and be sleeved on chute, the vertical adjustable side plate is connected to the vertical keeper being positioned at vertical adjustable side plate on the adjustable groove backing plate of the level；Longitudinally adjustable component includes guide rail and longitudinal register part, and two pieces of adjustable groove backing plates of level are slideably sleeved on guide rail, and the longitudinal register part of the adjustable groove backing plate of position level is provided on the guide rail.The present invention radially and longitudinally can in a big way adjusted, met the dynamic test demand of various different-diameters and different length.
Description
Technical field
The present invention relates to In Dynamic Testing of Materials apparatus field, and in particular to one kind meets radially and longitudinally different
The sample positioning device of size dynamic rock mechanics experiment.
Background technology
Split hopkinson bar is a kind of effective experiment dress of material dynamic mechanical performance under research one-dimensional stress state
Put, be also to carry out the most frequently used means of material dynamic mechanical performance study, be commonly used to the multiple materials such as measurement rock, concrete
Structure dynamic response and destructive characteristics.But the dynamic mechanical of the fragile materials such as rock, concrete has dimensional effect
Characteristic, such as under one-dimensional condition, the dynamics of material changes with the change of length, therefore, the kinetics of material
Energetics experimental study needs the dynamic performance for carrying out different size sample to test, but in the power of research different size sample
Can be run into unavoidably during the Hopkinson bar experimental implementation for learning performance test specimen it is excessive do not allow to be fixed easily, the feelings such as test specimen stability difference
Condition.And also there is following deficiency in existing experimental rig：1. the diameter majority of existing split hopkinson bar device be
Continuously adjustabe in the range of 20-50mm, but its adjusting range is still limited, it is impossible to support the test specimen that diameter is bigger.2. existing Hope
The gloomy bar positioner of gold does not adapt to the adjustable needs of the test specimen longitudinal direction i.e. consecutive variations of length direction, and linear bearing has specification
It is limited.
The content of the invention
In order to overcome existing Hopkinson lever apparatus in radial direction and the less deficiency of longitudinally adjust scope, the present invention provides one
Planting radially and longitudinally can in a big way adjusted, met the dynamic test demand of various different-diameters and different length
Dynamic rock mechanics tests various sizes of sample positioning device.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of dynamic rock mechanics tests various sizes of sample positioning device, including radially adjustable component and longitudinally adjustable group
Part, the radially adjustable component includes the adjustable groove backing plate of level, vertical adjustable side plate and the first antifriction apparatus, described vertically
Adjust and rotatable screw rod is installed on side plate, lift adjustment handle is installed in the upper end of the screw rod, and nut seat, institute are installed on the screw rod
State nut seat to be connected with the first antifriction apparatus, first antifriction apparatus can slide up and down to and be sleeved on chute, it is described vertical
Adjustable side plate is connected to the vertical keeper being positioned at vertical adjustable side plate on the adjustable groove backing plate of the level；
The longitudinally adjustable component includes guide rail and longitudinal register part, and two pieces of adjustable groove backing plates of level are slideably set with
On guide rail, the longitudinal register part of the adjustable groove backing plate of position level is provided on the guide rail.
Further, the vertical keeper is radially fixed bolt, is provided with location hole on the vertical adjustable side plate, radially
Fixing bolt is fixed on the adjustable groove backing plate of the level through location hole.
Further, the longitudinal register part is longitudinal register bolt, positioning of the longitudinal register bolt through guide rail
Hole is fixed with the adjustable groove backing plate of the level.
The positioning of the adjustable groove backing plate of level is provided with stopper slot, and the stopper slot is slidably mounted the second antifriction dress
Put, the both sides of second antifriction apparatus are respectively provided with vertical adjustable side plate.
First antifriction apparatus are sister block.
Second antifriction apparatus are sister block.
Beneficial effects of the present invention are mainly manifested in：1. the device can realize that test specimen diameter connects in the range of 50-200mm
Continuous change, the hopkinson test of piece lengths consecutive variations in the range of 100-1000mm.2. the device is U-type groove, and
Three faces are equipped with pulley, and rolling friction is far smaller than sliding friction, and device installation operation is easy, effectively improves the success of experiment
Rate and accuracy rate, 3. the device be provided with guide rail, corresponding regulation can be made according to the length of test specimen, improve present apparatus straight
Line bearing specification is limited and is unable to the deficiency of consecutive variations.
Brief description of the drawings
Fig. 1 is a kind of schematic three dimensional views of implementation of the invention.
Fig. 2 is a kind of lateral structure schematic diagram of implementation of the invention.
Fig. 2-1 is the specimen appliance view of diameter 50mm, and Fig. 2-2 is the specimen appliance view of diameter 100mm.Fig. 2-3 is
The specimen appliance view of diameter 150mm, Fig. 2-4 is the specimen appliance view of diameter 200mm.
Fig. 3 is device side view.
Fig. 3-1 is the guide rail specimen appliance view of length 100mm, and Fig. 3-2 is regarded for the guide rail specimen appliance of length 500mm
Figure.Fig. 3-3 is the guide rail specimen appliance view of length 1000mm.
Fig. 4 is the top view of device.
Fig. 4-1 is the guide rail specimen appliance top view of length 1000mm.
Wherein, 1, lifting adjustable handle, 2, antifriction apparatus, 3, sister block, 4, radially fixed bolt, 5, longitudinal register spiral shell
Bolt, 6, vertical adjustable side plate, 7, level is adjustable groove backing plate, 8, guide rail.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
A kind of 1~Fig. 4 of reference picture, dynamic rock mechanics tests various sizes of sample positioning device, including radially adjustable group
Part and longitudinally adjustable component；
The radially adjustable component is main to be made up of the adjustable groove backing plate of level, vertical adjustable side plate and antifriction apparatus etc..
1. the adjustable groove backing plate of level：Including backing plate thickness 50mm, 420mm long, 100mm wide；Horizontal scale chi, range is 0-
300mm。
2. vertical adjustable side plate：Including lifting adjustable handle, fixing bolt and the vertical graduated scales of 120mm.It is vertical adjustable
Side plate can be moved left and right in the groove of the adjustable groove backing plate of level in groove, be fixed by fixing bolt.
3. antifriction apparatus：Antifriction apparatus have three, respectively horizontal antifriction apparatus 1, are arranged in bottom, lateral antifriction
2, device, is arranged in both sides.Horizontal antifriction apparatus and lateral antifriction apparatus size are 38mm × 34mm × 38mm, are adopted
Component is sister block.
The sister block frame of horizontal antifriction apparatus is connected by screw with the groove center of the adjustable groove backing plate of level, groove two
Horizontal scale chi is carved with side, and right position is positioned.
The sister block frame of lateral antifriction apparatus is connected by screw rod with vertical adjustable side plate, is adjusted by lifting adjustable handle
The upper-lower position of lateral antifriction apparatus is saved, the upper-lower position of lateral antifriction apparatus is positioned using vertical graduated scale.
Sliding friction can be changed into rolling friction by antifriction apparatus, to reduce the frictional force between test specimen and device.
The longitudinally adjustable component is mainly made up of guide rail, bolt and 1000mm levels to graduated scale etc..
1. guide rail：1010mm long, 180mm wide, 80mm high, its further groove 1000mm long, 140mm wide, 60mm high.Guide rail is recessed
Moveable inlay is set in groove, and bolt is passed through inlay and guide rail.Guide rail grooves on two sides is carved with graduated scale.It is long according to test specimen
Degree determines to need several devices so as to fix position of the inlay in guide rail.
2. longitudinal register bolt：Through the inlay of the 140mm × 50mm × 95mm of horizon adjustable backing plate bottom, for lead
Rail is connected.Radially adjustable device is connected with guide rail and position of the fixed radial tunable arrangement on guide rail.
It is by moving left and right I-shaped riser of the both sides with pulley screw rod and rotating up and down that the positioner fixes test specimen
What nut adjustable pulley was highly realized.It is by moving left and right spill inlay and according to piece lengths requirement on piece lengths
Support meanss quantity fixes test specimen on increase and decrease guide rail.
(1) different radial dimensions：(4 kinds of specifications for test specimen radially below)
1. Φ=50mm, testing stand is put into by the test specimen of Φ=50mm, and adjustment vertical plates on both sides is adjusted to transverse slat scale for 30mm
Place, tightens the nut on the casting lug thereon of vertical plates on both sides side, then by rotating the handle on riser, make the pulley bracket center on screw rod
Line aligns with graduated scale 25mm.Such as Fig. 2-1.
2. Φ=100mm, testing stand is put into by the test specimen of Φ=100mm, and adjustment vertical plates on both sides is adjusted to transverse slat scale and is
At 55mm, the nut on the casting lug thereon of vertical plates on both sides side is tightened, then by rotating the handle on riser, make the pulley bracket on screw rod
Center line aligns with graduated scale 50mm.Such as Fig. 2-2.
3. Φ=150mm, testing stand is put into by the test specimen of Φ=150mm, and adjustment vertical plates on both sides is adjusted to transverse slat scale and is
At 80mm, the nut on the casting lug thereon of vertical plates on both sides side is tightened, then by rotating the handle on riser, make the pulley bracket on screw rod
Center line aligns with graduated scale 75mm.Such as Fig. 2-3.
4. Φ=200mm, testing stand is put into by the test specimen of Φ=200mm, and adjustment vertical plates on both sides is adjusted to transverse slat scale and is
At 105mm, the nut on the casting lug thereon of vertical plates on both sides side is tightened, then by rotating the handle on riser, make the pulley branch on screw rod
Frame center line aligns with graduated scale 100mm.Such as Fig. 2-4.
(2) different longitudinal sizes：(being below 10 kinds of specifications on piece lengths)
1. l=100mm；The test specimen of l=100mm is put into testing stand, a support meanss are now only needed to, tightened
Nut on guide rail fixes test specimen.Fig. 3-1.
2. l=200mm；Test specimen is put into testing stand, a support meanss are now only needed to, makes test specimen between two parties i.e.
Can, the nut on the casting lug thereon of vertical plates on both sides side is tightened, the nut tightened on guide rail fixes test specimen.
3. l=300mm；Test specimen is put into testing stand, a support meanss are now also required to, makes test specimen between two parties i.e.
Can, the nut on the casting lug thereon of vertical plates on both sides side is tightened, the nut tightened on guide rail fixes test specimen.
4. l=400mm；Test specimen is put into testing stand, a support meanss are now also required to, makes test specimen between two parties i.e.
Can, the nut on the casting lug thereon of vertical plates on both sides side is tightened, the nut tightened on guide rail fixes test specimen.
5. l=500mm；The supporting arrangement of left-hand side on moving guide rail, the right-hand member of device T-slot level board and guide rail are carved
Spend chi left end 50mm place relatively, then on moving guide rail right-hand side supporting arrangement, by the left end of device T-slot level board with lead
Relative at the 50mm of rail graduated scale right-hand member, the nut finally tightened on guide rail fixes test specimen.Such as Fig. 3-2.
6. l=600mm；The supporting arrangement of left-hand side on moving guide rail, the right-hand member of device T-slot level board and guide rail are carved
The 100mm places for spending chi left end are relative, then on moving guide rail right-hand side supporting arrangement, by the left end of device T-slot level board and
Relative at the 100mm of guide rail graduated scale right-hand member, the nut finally tightened on guide rail fixes test specimen.
7. l=700mm；The supporting arrangement of left-hand side on moving guide rail, the right-hand member of device T-slot level board and guide rail are carved
The 100mm places for spending chi left end are relative, then on moving guide rail right-hand side supporting arrangement, by the left end of device T-slot level board and
Relative at the 100mm of guide rail graduated scale right-hand member, the nut finally tightened on guide rail fixes test specimen.
8. l=800mm；The supporting arrangement of left-hand side on moving guide rail, the right-hand member of device T-slot level board and guide rail are carved
The 100mm places for spending chi left end are relative, then on moving guide rail right-hand side supporting arrangement, by the left end of device T-slot level board and
Relative at the 100mm of guide rail graduated scale right-hand member, the nut finally tightened on guide rail fixes test specimen.
9. l=900mm；The supporting arrangement of left-hand side on moving guide rail, the right-hand member of device T-slot level board and guide rail are carved
The 125mm places for spending chi left end are relative, then on moving guide rail right-hand side supporting arrangement, by the left end of device T-slot level board and
Relative at the 125mm of guide rail graduated scale right-hand member, the nut finally tightened on guide rail fixes test specimen.
10. l=1000mm, the supporting arrangement of left-hand side on moving guide rail, by the right-hand member and guide rail of device T-slot level board
It is relative at the 150mm of graduated scale left end, then on moving guide rail right-hand side supporting arrangement, by the left end of device T-slot level board
Relative with the 150mm of guide rail graduated scale right-hand member, the nut finally tightened on guide rail fixes test specimen.Such as Fig. 3-3.
Claims (6)
1. a kind of dynamic rock mechanics tests various sizes of sample positioning device, it is characterised in that：The sample positioning device bag
Radially adjustable component and longitudinally adjustable component are included, the radially adjustable component includes the adjustable groove backing plate of level, vertical adjustable side
Plate and the first antifriction apparatus, install rotatable screw rod on the vertical adjustable side plate, lift adjustment is installed in the upper end of the screw rod
Handle, installs nut seat on the screw rod, the nut seat is connected with the first antifriction apparatus, and first antifriction apparatus can be upper and lower
Slidably it is sleeved on chute, the vertical adjustable side plate is connected to for vertical adjustable side plate to be positioned at the level adjustable recessed
Vertical keeper on groove backing plate；
The longitudinally adjustable component includes guide rail and longitudinal register part, and two pieces of adjustable groove backing plates of level are slideably sleeved on and lead
On rail, the longitudinal register part of the adjustable groove backing plate of position level is provided on the guide rail.
2. dynamic rock mechanics as claimed in claim 1 tests various sizes of sample positioning device, it is characterised in that：It is described perpendicular
It is longitudinally fixed bolt to keeper, location hole is provided with the vertical adjustable side plate, longitudinally fixed bolt is solid through location hole
It is scheduled on the adjustable groove backing plate of the level.
3. dynamic rock mechanics as claimed in claim 1 or 2 tests various sizes of sample positioning device, it is characterised in that：Institute
Longitudinal register part is stated for longitudinal register bolt and nut, the longitudinal register bolt is adjustable with the level through the location hole of guide rail
Groove backing plate is fixed.
4. dynamic rock mechanics as claimed in claim 1 or 2 tests various sizes of sample positioning device, it is characterised in that：Institute
The positioning for stating the adjustable groove backing plate of level is provided with stopper slot, and the stopper slot is slidably mounted the second antifriction apparatus, described
The both sides of two antifriction apparatus are respectively provided with vertical adjustable side plate.
5. dynamic rock mechanics as claimed in claim 1 or 2 tests various sizes of sample positioning device, it is characterised in that：Institute
The first antifriction apparatus are stated for sister block.
6. dynamic rock mechanics as claimed in claim 4 tests various sizes of sample positioning device, it is characterised in that：Described
Two antifriction apparatus are sister block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710025936.3A CN106840861A (en) | 2017-01-13 | 2017-01-13 | Dynamic rock mechanics tests various sizes of sample positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710025936.3A CN106840861A (en) | 2017-01-13 | 2017-01-13 | Dynamic rock mechanics tests various sizes of sample positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106840861A true CN106840861A (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710025936.3A Pending CN106840861A (en) | 2017-01-13 | 2017-01-13 | Dynamic rock mechanics tests various sizes of sample positioning device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469381A (en) * | 2018-03-26 | 2018-08-31 | 中南大学 | Brittleness soft rock is circumferential to press loading device, soft rock sampler and sampling method |
| CN109323919A (en) * | 2018-11-21 | 2019-02-12 | 浙江大学 | A kind of split hopkinson press bar positioning device suitable for more size test specimens |
| CN110039820A (en) * | 2019-04-24 | 2019-07-23 | 三峡大学 | A kind of carton package glue-spraying device detected automatically based on sensor and application method |
| CN114674689A (en) * | 2022-03-31 | 2022-06-28 | 南京理工大学 | Test system for simulating target anti-knock characteristic under confining pressure condition |
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| CN109323919A (en) * | 2018-11-21 | 2019-02-12 | 浙江大学 | A kind of split hopkinson press bar positioning device suitable for more size test specimens |
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| CN110039820A (en) * | 2019-04-24 | 2019-07-23 | 三峡大学 | A kind of carton package glue-spraying device detected automatically based on sensor and application method |
| CN114674689A (en) * | 2022-03-31 | 2022-06-28 | 南京理工大学 | Test system for simulating target anti-knock characteristic under confining pressure condition |
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