CN108956271A - A kind of carrying of three axis stress model of rock and dress model machine structure - Google Patents
A kind of carrying of three axis stress model of rock and dress model machine structure Download PDFInfo
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- CN108956271A CN108956271A CN201810843492.9A CN201810843492A CN108956271A CN 108956271 A CN108956271 A CN 108956271A CN 201810843492 A CN201810843492 A CN 201810843492A CN 108956271 A CN108956271 A CN 108956271A
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- 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
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- 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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- 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
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- Life Sciences & Earth Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of carrying of three axis stress model of rock and dress model machine structure, are related to rock test equipment field.Including rack, the guide rail being laterally arranged is equipped in rack and is slidably mounted on guide rail mobile plate；One end of the rack is provided with model, one end of model is opening, the sealing cover for cooperating with model open end is provided on mobile plate, loading plate horizontally disposed, for placing rock sample is connected on sealing cover, the driving mechanism forward and drives the rock sample on loading plate to be delivered in model along the open end of model for driving mobile plate along guide rail, seal cap sealing lid is closed in the open end of model simultaneously, the circumferential direction of sealing cover is provided with for the bolt hole fixed with model.Sealing cover body of the invention is fixed on mobile plate, and the linear motion of mobile plate is realized using driving mechanism, thus reach the movement of sealing cover body, easy to operate and laborsaving, mobile steady, the assembly and disassembly safety of sealing cover body.
Description
Technical field
The present invention relates to rock test equipment field, specially a kind of three axis stress model of rock carrying and dress model machine
Structure.
Background technique
Hydraulic fracturing is right to become one of the major measure of modern petroleum industry frscturing from after testing successfully for the first time
The production of low permeability reservoirs has played important role.But field operation shows not only resulting in pressure if water layer is run through in crack
Operation failure is split, the destruction of formation pressure system will be also caused, and a main cause of operation failure is the failure to fracture
Geometric shape realization efficiently controls.
The geothermal energy that hot dry rock is contained in the earth's crust is huge, it has also become the new energy of countries in the world primary study exploitation.
The on-the-ground test research investment of the enhanced geothermal engineering of hot dry rock development of resources is big, the period is long, risk is big, at the scene pressure break and
Before artificial heat reservori builds demonstration project, it is necessary to implement the research of hot dry rock hydraulic fracturing experiments room.For this purpose, establishing rock three
Axis stress model is just very valuable, provides parameter and technical support for live fracturing technology design and reservoir reconstruction.Pass through water
Power fracturing technique builds the artificial reservoir process of hot dry rock, tests cost-effective fracturing parameter, monitors the geometric form of hydraulic fracture
State and Distribution Characteristics provide the necessary technical support and basic scientific research data, in this way for the development that the artificial reservoir of hot dry rock is built
The carrying of three axis stress model of rock and dress model machine structure are particularly important.
Currently, domestic such as Institutes Of Technology Of Taiyuan, Chinese Langfang branch of exploration and development research institute study fracture initiation and
The device of extension is large-scale real triaxial imitative experimental appliance,.This kind of device uses opening upwards, and rock sample and sealing cover are equal
It installed, dismantled by the way of lifting.Although reservoir crustal stress item can be simulated using large scale true triaxial simulation experiment system
Fracturing fracture under part extends mechanism simulated experiment.But still in place of Shortcomings:
1, rock is too big, and positioning is inaccurate, inconvenient.The rock sample volume that the experiment of true triaxial fracture simulation uses all is larger
And it is representative.What is generallyd use is the rock of 300 × 300 × 300 (mm) specifications, even more big specification.In lifting rock
The bad determination in position when stone test specimen enters mold cavity, and it is inconvenient.
2, sealing cover weight, dismounting is inconvenient, positioning is inaccurate.The size of rock sample directly determines the weight of sealing cover body
Amount.By taking the rock sample of 300 × 300 × 300 (mm) specifications as an example, sealing cover body pressure-bearing 20MPa
Pressure, sealing cover body size are at least 600 × 600 × 120 (mm), weight be 60cm × 60cm × 12cm × 7.8g/cm=
336960g=336.96Kg, more than 300 kilograms of sealing cover body will be mounted and dismounted vacantly, it is clear that manually be completed too arduously, i.e.,
It is hung using row, hanging sealing cover body can also swing back and forth, and be not easy alignment and fixation hole and control height.And common laboratory
Do not have the condition that dress row is hung.
3, sealing cover body covers on model from top, and liquid flowing line is difficult to connect from rock sample and come out.On moreover
It is very heavy that sealing cover body is also mentioned in face, and fixed and positioning is not easy, nor safety.
Summary of the invention
The object of the present invention is to provide a kind of carrying of three axis stress model of rock and dress model machine structures, can effectively solve to carry on the back
The problems in scape technology.
Realizing the technical solution of above-mentioned purpose is: a kind of carrying of three axis stress model of rock and filling model machine structure, feature
It is: including rack, the mobile plate that the guide rail being laterally arranged is equipped in rack and is slidably mounted on guide rail, in rack
It is also equipped with the driving mechanism for driving mobile plate to slide along guide rail；
One end of the rack is provided with model, and one end of model is opening, is provided on mobile plate for being open with model
The sealing cover of cooperation is held, loading plate horizontally disposed, for placing rock sample is connected on sealing cover, the driving mechanism is used
Forward and the rock sample on loading plate is driven to be delivered in model along the open end of model along guide rail in the mobile plate of driving,
Seal cap sealing lid is closed in the open end of model simultaneously, the circumferential direction of sealing cover is provided with for the bolt hole fixed with model.
Sealing cover body of the invention is fixed on mobile plate, and the linear motion of mobile plate is realized using driving mechanism,
It is easy to operate and laborsaving to reach the movement of sealing cover body, mobile steady, the assembly and disassembly safety of sealing cover body.
Further, the rock sample is supported on loading plate by loading and unloading template, and the upper surface of loading plate is provided with
Spaced apart multiple first half slots, the lower end surface for loading and unloading template are provided with multiple respectively corresponding with the first half slot second
Half slot, the first half slot and the second half slot are combined to form the circular hole of multiple perforations, fit through in circular hole and are equipped with cylindrical rod, circle
Distinguish protruding circular hole in the both ends of column stick.
The setting of circular hole and the cylindrical rod being set in circular hole can easily fill and (unload) rock sample convenient for forklift, this
Sample, it is not only easy to operate, while positioning can also be played the role of by cylindrical rod, and be avoided that the direct tactite when loading and unloading part
Stone test specimen, and damage the corner angle of rock sample.
Further, the handling template is provided with mutually matched limiting stand towards between one end and loading plate of model
Rank realizes the positioning of handling template.
Further, the front end two sides of loading plate are connected separately with the rolling for making loading plate roll displacement in model
Wheel, it is therefore intended that reduce the frictional force with model bottom surface, reach labour-saving effect.
Further, rectangular seal groove is also set up on the inside of sealing cover, and the open end with model is provided in seal groove
The sealing ring of cooperation, because of space limitation, inconvenient or even can not connecting line after avoiding rock core test piece from putting into mold cavity
Awkward situation.
Further, the both ends of threading hole are arranged to stairstepping and are machined with internal screw thread, convenient for connection pipe fitting.
Further, to guarantee sealing effect, sealing ring is provided between sealing cover and model.
Further, to reduce oil inlet quantity when detection, it is provided with compensation block between the rock sample and sealing cover, mends
Block is repaid to be connected on sealing cover.
Further, it is to mitigate weight, increases intensity, compensation block is provided with cavity, and multiple add is provided between cavity
Strengthening tendons, reinforcing rib is provided with through compensation block and the screw-threaded counterbore for being threadedly coupled with sealing cover.
Further, limit switches, limit switch and mobile plate cooperation, difference is respectively set in the both ends of the rack
For controlling driving mechanism when mobile plate is moved to initial position and is moved to the position of sealing cover and model cooperation
Stopping movement.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the attachment structure schematic diagram of sealing cover and compensation block；
Fig. 3 is the structural schematic diagram for the rock sample being supported on handling template.
Specific embodiment
As shown in Figure 1, 2, 3, the present invention includes rack 1, the guide rail 2 being laterally arranged is equipped in rack 1 and by straight
Spool holds the 3 mobile plates 4 being slidably mounted on guide rail 2, is also equipped with what the mobile plate 4 of driving was slided along guide rail 2 in rack 1
Driving mechanism 5, driving mechanism 5 include the screw rod 5.2 being mounted under mobile plate 4 on methods, rack 1 by bearing block 5.1, screw rod
The nut 5.3 fixed with mobile plate 4 is threaded on 5.2, be also equipped in rack 1 it is that driving screw rod 5.2 rotates and
The servo motor 5.4 and speed reducer 5.5 being sequentially connected between each other.
One end of rack 1 is provided with model 6, and one end of model 6 is opening, be provided on mobile plate 4 for model 6
The sealing cover 7 of open end cooperation, sealing cover 7 are mounted on mobile plate 4 by cushion block 8, control sealing cover 7 by cushion block 8
Mounting height connects sealing cover body bracket 9 between sealing cover 7 and mobile plate 4, and the side of sealing cover 7 towards model 6 is connected with
Loading plate 11 horizontally disposed, for placing rock sample 10, driving mechanism 5 for drive mobile plate 4 along guide rail 2 forward,
And the rock sample 10 on loading plate 11 is driven to be delivered in model 6 along the open end of model 6, while by 7 sealing cover of sealing cover
It closes in the open end of model 6, the circumferential direction of sealing cover 7 is provided with for the bolt hole 12 fixed with model 6..
Limit switches 30 are respectively set in 1 both ends of rack, and limit switch 30 and the mobile cooperation of plate 4 are respectively used to mobile flat
When plate 4 is moved to initial position and is moved to the position that sealing cover 7 and model 6 cooperate, control 5 stopping of driving mechanism movement.
Compensation block 22 is provided between rock sample 10 and sealing cover 7, compensation block 22 is provided with cavity, is arranged between cavity
There are multiple reinforcing ribs 23, reinforcing rib 23 is provided with through compensation block 22 and the screw-threaded counterbore for being threadedly coupled with sealing cover 7
24, the dormant bolt 29 being threadedly coupled with sealing cover is provided in screw-threaded counterbore 24.
The threading hole 13 for placing rock sample test pipeline, the both ends setting of threading hole 13 are provided on sealing cover 7
At stairstepping and it is machined with internal screw thread, is provided with sealing ring 14 in 13 two-port of threading hole.
The inside of sealing cover 7 also sets up rectangular seal groove 15, is provided in seal groove 15 and cooperates with the open end of model 6
Sealing ring 16.
Rock sample 10 is supported on loading plate 11 by loading and unloading template 16, and the front end two sides of loading plate 11 are connected separately with
For making the idler wheel 21 of the roll displacement in model 6 of loading plate 11, handling template 16 towards one end of 6 type of mould and loading plate 11 it
Between be provided with mutually matched limited step 17, the upper surface of loading plate 11 is provided with spaced apart multiple first half slots
18, the lower end surface of handling template 16 is provided with multiple second half slots 19 corresponding with the first half slot 18 respectively, the first semicircle
Slot 18 and the second half slot 19 are combined to form the circular hole of multiple perforations, fit through in circular hole and are equipped with cylindrical rod 20, cylindrical rod 20
Distinguish protruding circular hole in both ends.
Dress sample process of the invention:
Rock sample 10 is placed on handling template 16, is loaded and unloaded in the second half slot 19 of 16 lower end surface of template and is equipped with cylinder
Stick 20, forklift are tried using 20 both ends of cylindrical rod for stretching out the second half slot 19 as the rock that supporting point is placed on handling template 16
Part 10 is moved on loading plate 11, while cylindrical rod 20 is equipped in corresponding first half slot 18, is connected later
Pipeline between rock sample 10 and sealing cover 7.
After rock sample 10 is carried in place, mobile plate 4 is driven forward and to drive and hold along guide rail 2 by servo motor 5.4
Rock sample 10 on support plate 11 is delivered in model 6 along the open end of model 6, while sealing cover 7 is covered in model 6
Open end, then be fastened by bolts.
Sampling process of the invention is with dress sample process on the contrary, concrete principle is identical, and details are not described herein.
Heretofore described rock sample 10, model 6, the piping connection of rock sample 10 and test process is existing
There is technology, its structure and test method are not being repeated at this.For example, Chinese Journal of Rock Mechanics and Engineering is in June, 2000
In volume 19, delivered by author Chen Mian etc., title are as follows: just open in the paper of large scale true triaxial hydraulic fracturing simulation and analysis
There is rock sample, accommodates the structure and test method of the model of rock sample.
Claims (10)
1. a kind of three axis stress model of rock carrying and dress model machine structure, it is characterised in that: including rack, be equipped with cross in rack
It is sliding along guide rail to be also equipped with the mobile plate of driving in rack for guide rail to setting and the mobile plate that is slidably mounted on guide rail
Dynamic driving mechanism；
One end of the rack is provided with model, and one end of model is opening, is provided on mobile plate for being open with model
The sealing cover of cooperation is held, loading plate horizontally disposed, for placing rock sample is connected on sealing cover, the driving mechanism is used
Forward and the rock sample on loading plate is driven to be delivered in model along the open end of model along guide rail in the mobile plate of driving,
Seal cap sealing lid is closed in the open end of model simultaneously, the circumferential direction of sealing cover is provided with for the bolt hole fixed with model.
2. three axis stress model of a kind of rock carrying according to claim 1 and dress model machine structure, it is characterised in that: described
Rock sample is supported on loading plate by loading and unloading template, and the upper surface of loading plate is provided with spaced apart multiple first semicircles
Slot, the lower end surface for loading and unloading template are provided with multiple second half slots corresponding with the first half slot respectively, the first half slot and
Two half slots are combined to form the circular hole of multiple perforations, fit through in circular hole and are equipped with cylindrical rod, and the both ends of cylindrical rod are respectively to overhanging
Circular hole out.
3. three axis stress model of a kind of rock carrying according to claim 2 and dress model machine structure, it is characterised in that: described
It loads and unloads template and is provided with mutually matched limited step towards between one end and loading plate of model.
4. three axis stress model of a kind of rock carrying according to claim 2 and dress model machine structure, it is characterised in that: carrying
The front end two sides of plate are connected separately with the idler wheel for making loading plate roll displacement in model.
5. three axis stress model of a kind of rock carrying according to claim 1 and dress model machine structure, it is characterised in that: described
It is provided with the threading hole for placing rock sample test pipeline on sealing cover, is provided with sealing ring in threading hole two-port.
6. three axis stress model of a kind of rock carrying according to claim 4 and dress model machine structure, it is characterised in that: threading
The both ends in hole are arranged to stairstepping and are machined with internal screw thread.
7. three axis stress model of a kind of rock carrying according to claim 1 and dress model machine structure, it is characterised in that: sealing
Sealing ring is provided between lid and model.
8. three axis stress model of a kind of rock carrying according to claim 1 and dress model machine structure, it is characterised in that: described
Compensation block is provided between rock sample and sealing cover, compensation block is connected on sealing cover.
9. three axis stress model of a kind of rock carrying according to claim 8 and dress model machine structure, it is characterised in that: described
Compensation block is provided with cavity, and multiple reinforcing ribs are provided between cavity, and reinforcing rib is provided with through compensation block and is used for and sealing
Cover the screw-threaded counterbore being threadedly coupled.
10. three axis stress model of a kind of rock carrying according to claim 1 and dress model machine structure, it is characterised in that: institute
Limit switches are respectively set in the both ends for stating rack, and limit switch and mobile plate cooperation are respectively used in mobile plate movement
When to initial position and being moved to sealing cover and the position of model cooperation, control driving mechanism stopping movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810843492.9A CN108956271A (en) | 2018-07-27 | 2018-07-27 | A kind of carrying of three axis stress model of rock and dress model machine structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810843492.9A CN108956271A (en) | 2018-07-27 | 2018-07-27 | A kind of carrying of three axis stress model of rock and dress model machine structure |
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| CN108956271A true CN108956271A (en) | 2018-12-07 |
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| CN201810843492.9A Pending CN108956271A (en) | 2018-07-27 | 2018-07-27 | A kind of carrying of three axis stress model of rock and dress model machine structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129640A (en) * | 2020-09-24 | 2020-12-25 | 江苏华安科研仪器有限公司 | Novel bearing device of reservoir inversion model |
| CN113959853A (en) * | 2021-10-20 | 2022-01-21 | 安徽理工大学 | Experimental simulation device for rock stratum fracturing and radial seepage under high-temperature condition |
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| CN101504356A (en) * | 2009-03-06 | 2009-08-12 | 中国科学院武汉岩土力学研究所 | Self-balancing rock full end face true three-axial compression test apparatus |
| CN101813585A (en) * | 2010-04-13 | 2010-08-25 | 无锡昌华机电制造有限公司 | Mechanical clamping type automatic feeding and discharging device |
| CN104181285A (en) * | 2014-08-26 | 2014-12-03 | 长春机械科学研究院有限公司 | Triaxial coordinate loading machine for coal rock test |
| CN106018860A (en) * | 2016-05-17 | 2016-10-12 | 重庆大学 | Test piece transfer mechanism for coal engineering test |
| CN106018105A (en) * | 2016-05-17 | 2016-10-12 | 重庆大学 | Multifunctional physical simulation test system for coal engineering and coal model test method |
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2018
- 2018-07-27 CN CN201810843492.9A patent/CN108956271A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504356A (en) * | 2009-03-06 | 2009-08-12 | 中国科学院武汉岩土力学研究所 | Self-balancing rock full end face true three-axial compression test apparatus |
| CN101813585A (en) * | 2010-04-13 | 2010-08-25 | 无锡昌华机电制造有限公司 | Mechanical clamping type automatic feeding and discharging device |
| CN104181285A (en) * | 2014-08-26 | 2014-12-03 | 长春机械科学研究院有限公司 | Triaxial coordinate loading machine for coal rock test |
| CN106018860A (en) * | 2016-05-17 | 2016-10-12 | 重庆大学 | Test piece transfer mechanism for coal engineering test |
| CN106018105A (en) * | 2016-05-17 | 2016-10-12 | 重庆大学 | Multifunctional physical simulation test system for coal engineering and coal model test method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129640A (en) * | 2020-09-24 | 2020-12-25 | 江苏华安科研仪器有限公司 | Novel bearing device of reservoir inversion model |
| CN113959853A (en) * | 2021-10-20 | 2022-01-21 | 安徽理工大学 | Experimental simulation device for rock stratum fracturing and radial seepage under high-temperature condition |
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Application publication date: 20181207 |
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