CN204964310U - Refined calculation low temperature poisson's ratio of rock's test device - Google Patents
Refined calculation low temperature poisson's ratio of rock's test device Download PDFInfo
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- CN204964310U CN204964310U CN201520762230.1U CN201520762230U CN204964310U CN 204964310 U CN204964310 U CN 204964310U CN 201520762230 U CN201520762230 U CN 201520762230U CN 204964310 U CN204964310 U CN 204964310U
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- low temperature
- adjustable type
- leading screw
- detecting device
- vertical
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Abstract
The utility model relates to a refined calculation low temperature poisson's ratio of rock's test device, including the base, the rotatory device that bears is installed through the bearing in the middle part of base upper end, and left regulation formula detector, right regulation formula detector are installed to the left part of base, right part symmetry respectively, and left regulation formula detector, right regulation formula detector structure are the same, and the displacement measurement device is installed to the top of left regulation formula detector. The utility model has the advantages of reasonable and the operation convenient to use of structural design, can realize measuring low temperature poisson's ratio of rock to the supplementary realization is calculated low temperature poisson's ratio of rock, can be applicable to the detection of different dimensions's low temperature rock simultaneously, and nimble degree is high, wide applicability.
Description
Technical field
The utility model relates to earthwork engineering technique with the apparatus field, specifically a kind of test unit of accurate Calculation low temperature Rock Poisson Ratio Using.
Background technology
The Poisson ratio of rock is not only the basis calculating other rock mechanics parameters, is also one of important parameter calculating reservoir stress and 3 reservoir pressures, the whether accurate accuracy directly having influence on Borehole Stability and evaluate that this parameter calculates.The Poisson ratio of existing measurement rock is under normal temperature, does not also measure the Poisson ratio of low temperature rock at present.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of reasonable in design, easy for operation, can realize measuring low temperature Rock Poisson Ratio Using and assisting the device realizing calculating low temperature Rock Poisson Ratio Using, i.e. a kind of test unit of accurate Calculation low temperature Rock Poisson Ratio Using.
Technical problem to be solved in the utility model realizes by the following technical solutions:
A kind of test unit of accurate Calculation low temperature Rock Poisson Ratio Using, comprise base, the upper end, middle part of described base is provided with rotary carrying device by bearing, the left part of described base, right part are symmetrically installed with left adjustable type detecting device, right adjustable type detecting device respectively, described left adjustable type detecting device, right adjustable type detector arrangement are identical, and the top of described left adjustable type detecting device is provided with displacement measuring device.Low temperature rock to be detected is placed on rotary carrying device, now displacement measuring device is in directly over low temperature rock, thus can detect the vertical displacement of low temperature rock, left adjustable type detecting device can be utilized subsequently, right adjustable type detecting device is adjacent on low temperature rock, can detect the transverse strain of low temperature rock.The utility model adopts rotary carrying device, can drive the rotation that low temperature rock is synchronous, can utilize the diverse location on left adjustable type detecting device, right adjustable type detecting device detection low temperature rock like this, to guarantee the accuracy detected.
Described rotary carrying device comprises turntable, gear platform, motor, pinion wheel, described turntable is connected with the upper end, middle part of base by bearing, described gear platform level is arranged on the upper end of turntable, described motor is arranged on the upper surface of base, described pinion wheel is arranged on the axle of motor, and described pinion wheel is meshed with gear platform.Rotated by motor driving pinion, and then utilize pinion wheel to transmit power with engaging of gear platform, to order about turntable, the revolution of gear platform, low temperature rock can be driven to rotate.
Described left adjustable type detecting device, right adjustable type detecting device includes vertical leading screw, vertical guide shaft, vertical swing handle, slippage platform, horizontal swing handle, Change-over frame, foil gauge, horizontal leading screw and horizontal guide shaft, the lower end of described vertical leading screw is connected by bearing and base are vertical, the lower end of described vertical guide shaft is vertically fixed on base, described slippage platform is sleeved on vertical guide shaft, described slippage platform and vertical leading screw pass through threaded engagement, described vertical swing handle is arranged on the upper end of vertical leading screw, described horizontal leading screw is arranged on slippage platform by the mode level of threaded engagement, described horizontal swing handle is arranged on one end of horizontal leading screw, the other end of described horizontal leading screw is connected with Change-over frame, described horizontal guide shaft is horizontally fixed on the rear side of Change-over frame, be slidably matched between described horizontal guide shaft and slippage platform, described foil gauge is arranged on the front side of Change-over frame successively according to order from top to bottom.Left adjustable type detecting device of the present utility model, right adjustable type detecting device can realize the adjustment of two-freedom, by rotary vertically to swing handle, order about vertical screw turns, make slippage platform move up and down under the guide effect of vertical guide shaft like this, can make foil gauge to move or moves down; By rotating horizontal swing handle, driving horizontal screw turns, Change-over frame can be made like this to move left and right under the guide effect of horizontal guide shaft, regulate, to adapt to the detection of the low temperature rock of different size specification with the right position realizing foil gauge.
Institute's displacement measurement device comprises peg and displacement meter, one end of described peg is connected with the top of left adjustable type detecting device, described peg is connected with the upper end of the vertical guide shaft of left adjustable type detecting device, the described other end stating peg is connected with displacement meter, and described displacement meter is positioned at directly over rotary carrying device.
The quantity of described foil gauge is three.
The beneficial effects of the utility model are: the utility model has reasonable in design and the advantage such as easy for operation, can realize measuring low temperature Rock Poisson Ratio Using, and auxiliary realization calculates low temperature Rock Poisson Ratio Using, the detection of the low temperature rock of different size specification can be applicable to simultaneously, degree of flexibility is high, widely applicable.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is main TV structure schematic diagram of the present utility model;
Fig. 2 is plan structure schematic diagram of the present utility model;
Fig. 3 is the structural representation of foil gauge of the present utility model.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below the utility model being set forth further.
As shown in Figure 1 to Figure 3, a kind of test unit of accurate Calculation low temperature Rock Poisson Ratio Using, comprise base 1, the upper end, middle part of described base 1 is provided with rotary carrying device by bearing, the left part of described base 1, right part are symmetrically installed with left adjustable type detecting device, right adjustable type detecting device respectively, described left adjustable type detecting device, right adjustable type detector arrangement are identical, and the top of described left adjustable type detecting device is provided with displacement measuring device.Low temperature rock 17 to be detected is placed on rotary carrying device, now displacement measuring device is in directly over low temperature rock 17, thus can detect the vertical displacement of low temperature rock 17, left adjustable type detecting device can be utilized subsequently, right adjustable type detecting device is adjacent on low temperature rock 17, can detect the transverse strain of low temperature rock 17.The utility model adopts rotary carrying device, can drive the rotation that low temperature rock 17 is synchronous, can utilize the diverse location on left adjustable type detecting device, right adjustable type detecting device detection low temperature rock 17 like this, to guarantee the accuracy detected.
Described rotary carrying device comprises turntable 2, gear platform 3, motor 4, pinion wheel 5, described turntable 2 is connected with the upper end, middle part of base 1 by bearing, described gear platform 3 level is arranged on the upper end of turntable 2, described motor 4 is arranged on the upper surface of base 1, described pinion wheel 5 is arranged on the axle of motor 4, and described pinion wheel 5 is meshed with gear platform 3.Rotated by motor 4 driving pinion 5, and then utilize pinion wheel 5 to transmit power with engaging of gear platform 3, to order about turntable 2, gear platform 3 turns round, and low temperature rock 17 can be driven to rotate.
Described left adjustable type detecting device, right adjustable type detecting device includes vertical leading screw 6, vertical guide shaft 7, vertical swing handle 8, slippage platform 9, horizontal swing handle 10, Change-over frame 11, foil gauge 12, horizontal leading screw 13 and horizontal guide shaft 14, the lower end of described vertical leading screw 6 is connected with base 1 is vertical by bearing, the lower end of described vertical guide shaft 7 is vertically fixed on base 1, described slippage platform 9 is sleeved on vertical guide shaft 7, described slippage platform 9 passes through threaded engagement with vertical leading screw 6, described vertical swing handle 8 is arranged on the upper end of vertical leading screw 6, described horizontal leading screw 13 is arranged on slippage platform 9 by the mode level of threaded engagement, described horizontal swing handle 10 is arranged on one end of horizontal leading screw 13, the other end of described horizontal leading screw 13 is connected with Change-over frame 11, described horizontal guide shaft 14 is horizontally fixed on the rear side of Change-over frame 11, be slidably matched between described horizontal guide shaft 14 and slippage platform 9, described foil gauge 12 is arranged on the front side of Change-over frame 11 successively according to order from top to bottom.Left adjustable type detecting device of the present utility model, right adjustable type detecting device can realize the adjustment of two-freedom, by rotary vertically to swing handle 8, order about vertical leading screw 6 to rotate, make slippage platform 9 move up and down under the guide effect of vertical guide shaft 7 like this, can make foil gauge 12 to move or moves down; By rotating horizontal swing handle 10, driving horizontal leading screw 13 to rotate, Change-over frame 11 can be made like this to move left and right under the guide effect of horizontal guide shaft 14, regulate, to adapt to the detection of the low temperature rock 17 of different size specification with the right position realizing foil gauge 12.
Institute's displacement measurement device comprises peg 15 and displacement meter 16, one end of described peg 15 is connected with the top of left adjustable type detecting device, described peg 15 is connected with the upper end of the vertical guide shaft 7 of left adjustable type detecting device, the described other end stating peg 15 is connected with displacement meter 16, and described displacement meter 16 is positioned at directly over rotary carrying device.
The quantity of described foil gauge 12 is three.
Described foil gauge 12 comprises substrate 18, metal forming sensitive grid 19, screening glass 20, lead-in wire 21 and circuit processor 22; when foil gauge 12 is near low temperature rock 17; screening glass 20 is torn; and by regulating horizontal swing handle 10; metal forming sensitive grid 19 is made to be close on the surface of low temperature rock 17; occur flexible when low temperature rock 17 detects; synchronous the stretching of metal forming sensitive grid 19; by going between 21 by signal transmission to circuit processor 22; and flow to external equipment, to realize the detection to strain.
During use, low temperature rock 17 is processed into high 100mm, the cylindrical soil sample of diameter 50mm, be placed on more than maintenance 24h under subzero temperature, carry out under the cryogenic box subzero temperature of WDT-100 single axis test machines, transverse strain is surveyed by foil gauge 12, vertical displacement is surveyed by displacement meter 16, then at the uniform velocity load by the speed of 2%, low temperature rock 17 is more crisp, just start elastic deformation occurs, then plastic period is entered, signal flows to external equipment, obtain stress-strain curve, transverse strain and time curve is recorded by foil gauge, stress-strain curve finds the strain stress of turning point
a, then by ε
abe divided into 10 equal portions, each is the corresponding transverse strain of strain vertically, respectively a corresponding Poisson ratio υ
1, υ
2... υ
10, then observe the fluctuation situation of Poisson ratio with mean square deviation formula, that is:
Wherein υ
i=1/10 υ
1+ υ
2+ ... υ
10.
More than show and describe ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; the just principle of the present utility model described in above-described embodiment and instructions; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. the test unit of an accurate Calculation low temperature Rock Poisson Ratio Using, comprise base (1), it is characterized in that: the upper end, middle part of described base (1) is provided with rotary carrying device by bearing, the left part of described base (1), right part are symmetrically installed with left adjustable type detecting device, right adjustable type detecting device respectively, described left adjustable type detecting device, right adjustable type detector arrangement are identical, and the top of described left adjustable type detecting device is provided with displacement measuring device.
2. the test unit of a kind of accurate Calculation low temperature Rock Poisson Ratio Using according to claim 1, it is characterized in that: described rotary carrying device comprises turntable (2), gear platform (3), motor (4), pinion wheel (5), described turntable (2) is connected by the upper end, middle part of bearing with base (1), described gear platform (3) level is arranged on the upper end of turntable (2), described motor (4) is arranged on the upper surface of base (1), described pinion wheel (5) is arranged on the axle of motor (4), described pinion wheel (5) is meshed with gear platform (3).
3. the test unit of a kind of accurate Calculation low temperature Rock Poisson Ratio Using according to claim 1, it is characterized in that: described left adjustable type detecting device, right adjustable type detecting device includes vertical leading screw (6), vertical guide shaft (7), vertical swing handle (8), slippage platform (9), horizontal swing handle (10), Change-over frame (11), foil gauge (12), horizontal leading screw (13) and horizontal guide shaft (14), the lower end of described vertical leading screw (6) is connected with base (1) is vertical by bearing, the lower end of described vertical guide shaft (7) is vertically fixed on base (1), described slippage platform (9) is sleeved on vertical guide shaft (7), described slippage platform (9) and vertical leading screw (6) pass through threaded engagement, described vertical swing handle (8) is arranged on the upper end of vertical leading screw (6), described horizontal leading screw (13) is arranged on slippage platform (9) by the mode level of threaded engagement, described horizontal swing handle (10) is arranged on one end of horizontal leading screw (13), the other end of described horizontal leading screw (13) is connected with Change-over frame (11), described horizontal guide shaft (14) is horizontally fixed on the rear side of Change-over frame (11), be slidably matched between described horizontal guide shaft (14) and slippage platform (9), described foil gauge (12) is arranged on the front side of Change-over frame (11) successively according to order from top to bottom.
4. the test unit of a kind of accurate Calculation low temperature Rock Poisson Ratio Using according to claim 1, it is characterized in that: institute's displacement measurement device comprises peg (15) and displacement meter (16), one end of described peg (15) is connected with the top of left adjustable type detecting device, the described other end stating peg (15) is connected with displacement meter (16), and described displacement meter (16) is positioned at directly over rotary carrying device.
5. the test unit of a kind of accurate Calculation low temperature Rock Poisson Ratio Using according to claim 3, is characterized in that: the quantity of described foil gauge (12) is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520762230.1U CN204964310U (en) | 2015-09-29 | 2015-09-29 | Refined calculation low temperature poisson's ratio of rock's test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520762230.1U CN204964310U (en) | 2015-09-29 | 2015-09-29 | Refined calculation low temperature poisson's ratio of rock's test device |
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| CN204964310U true CN204964310U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520762230.1U Expired - Fee Related CN204964310U (en) | 2015-09-29 | 2015-09-29 | Refined calculation low temperature poisson's ratio of rock's test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752259A (en) * | 2019-01-25 | 2019-05-14 | 山东科技大学 | Simulate the improving stability of surrounding rocks in roadway experimental rig and method of deep hot and humid environment |
-
2015
- 2015-09-29 CN CN201520762230.1U patent/CN204964310U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752259A (en) * | 2019-01-25 | 2019-05-14 | 山东科技大学 | Simulate the improving stability of surrounding rocks in roadway experimental rig and method of deep hot and humid environment |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20160929 |
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| CF01 | Termination of patent right due to non-payment of annual fee |