CN213041620U - Constant load device for high-pressure hysteresis elasticity test - Google Patents
Constant load device for high-pressure hysteresis elasticity test Download PDFInfo
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- CN213041620U CN213041620U CN202021206626.5U CN202021206626U CN213041620U CN 213041620 U CN213041620 U CN 213041620U CN 202021206626 U CN202021206626 U CN 202021206626U CN 213041620 U CN213041620 U CN 213041620U
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Abstract
The utility model belongs to the technical field of the mechanical test of underground works rock, a high pressure hysteresis elasticity test dead load device is related to. However, at present, no special testing device for a core elastic hysteresis strain recovery method exists, and it is difficult to accurately obtain testing parameters such as elastic hysteresis flexibility ratio and the like, which brings problems to the calculation of the ground stress. The utility model discloses high pressure hysteresis elasticity test dead load device, including high-pressure pump, pressure pipeline and high-pressure dead load appearance, solved the equipment problem that the current elasticity flexibility ratio that stagnates is difficult to the survey. The utility model has the characteristics of convenient, reliable, steady voltage of dead load, accurate, be suitable for on-the-spot normal position test, improved efficiency of software testing.
Description
Technical Field
The utility model belongs to the technical field of the mechanical test of underground works rock, a high pressure hysteresis elasticity test dead load device is related to.
Background
The core elastic strain recovery method is one of the main methods for testing the ground stress, has the characteristics of low cost, high efficiency and strong adaptability compared with other ground stress measuring methods such as a stress relieving method, a hydraulic fracturing method and the like, is not limited by the depth, type, direction and temperature of a drill hole, and is particularly suitable for deep holes, ultra-deep holes, horizontal holes and stratums with complex geological conditions.
However, at present, no testing device special for a core elastic strain recovery method exists, and when the method is used for carrying out an earth stress test, it is difficult to accurately obtain testing parameters such as elastic-elastic flexibility ratio and the like, so that problems are brought to earth stress calculation, a high-pressure elastic strain test constant-load device is provided, and the problem of testing by the core elastic strain recovery method is solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a dead load steady voltage, accurate high pressure hysteresis elasticity test dead load device.
In order to achieve the above object, the utility model adopts the following technical scheme:
the high-pressure hysteresis elasticity test dead load device comprises a high-pressure pump 1, a pressure pipeline 2 and a high-pressure dead load instrument 3, and is characterized in that: the high-pressure load stabilizer 3 consists of a cylinder body 5, a pressure cavity 9, a high-pressure sealing rubber sleeve 8, a connecting flange 6, a bolt 7, an oiling interface 10, an interface 11 of the pressure transmitter 4 and a fixed base 12; the cylinder body 5 is a hollow cylinder, the bottom of the cylinder body 5 is provided with a fixed base 12, the middle of the cylinder body 5 is provided with a hollow pressure cavity 9, the inner wall of the pressure cavity 9 is provided with a high-pressure sealing rubber sleeve 8, two ends of the cylinder body 5 are provided with connecting flanges 6, and the high-pressure sealing rubber sleeve 8 is fixed in the cylinder body 5 by bolts 7; and an oil filling connector 10 is arranged on the side surface of the cylinder body.
The upper end of the cylinder 5 is provided with a pressure transmitter interface 13.
The bolt 7 is a high-strength bolt.
The press seal rubber sleeve 14 is a cylindrical rubber sleeve matched with the inner shape of the hollow cylinder body, and seal rings are arranged on the outer edges of two sides.
The beneficial effects of the utility model are that:
the utility model discloses a high pressure hysteresis elasticity test dead load device has solved the equipment problem that the elasticity flexibility ratio is difficult to the survey that stagnates at present. The testing device has the characteristics of convenience, reliability, constant load, stable voltage and accuracy, is suitable for field in-situ testing, and improves the testing efficiency.
Drawings
FIG. 1 is a schematic structural view of a high-hysteresis elasticity testing constant-load device of the present invention;
FIG. 2 is a schematic view of the high-voltage load-stabilizing instrument of the present invention;
FIG. 3 is a schematic sectional view of the high voltage load stabilizer A-A of the present invention;
FIG. 4 is a schematic sectional view of a high-voltage load stabilizer B-B of the present invention;
FIG. 5 is a schematic view of a fixing flange of the high-voltage load-stabilizing instrument of the present invention;
in the figure, 1, a high-pressure pump, 2, a pressure pipeline, 3, a high-pressure constant load instrument, 4, a pressure transmitter, 5, a cylinder body, 6, a connecting flange, 7, a bolt, 8, a high-pressure sealing rubber sleeve, 9, a pressure cavity, 10, an oil filling interface, 11, a pressure transmitter interface, 12, a fixed base and 13, a core test piece.
Detailed Description
The high-pressure hysteresis elasticity testing constant-load device is used for carrying out long-term constant-load pressurization on the on-site collected rock core, and the loading mode is continuous or graded bidirectional loading, so that the rock core generates hysteresis elasticity;
referring to fig. 1-5, the high-pressure hysteresis elasticity test constant load device comprises a high-pressure pump 1, a pressure pipeline 2 and a high-pressure constant load instrument 3. The high-pressure pump 1 provides a core pressurization load; the high-pressure deadweight apparatus 3 is used for placing the core test piece 13 and providing uniform bidirectional pressure. The hydraulic pressure generated by the high-pressure pump 1 is transmitted into a pressure cavity 9 of the high-pressure deadweight instrument 3 through the pressure pipeline 2, so that axial pressure and annular pressure are applied to the on-site investigation core. The loading mode can adopt continuous pressurization or step pressurization, and also can carry out step pressure relief and pressure maintaining on the core.
The high-pressure load stabilizer 3 is composed of a cylinder body 5, a pressure cavity 9, a high-pressure sealing rubber sleeve 8, a connecting flange 6, a high-strength bolt 7, an oiling interface 10, a pressure transmitter interface 11 and a fixed base 12. The upper end of the cylinder body 5 is provided with a pressure transmitter interface 11, the side surface is provided with an oil filling interface 10, the two ends are provided with high-strength bolts 7 for fixing the high-pressure sealing rubber sleeve 8, the bottom is provided with a fixed base 12, and the middle of the cylinder body 5 is provided with a hollow pressure cavity 9. The pressure cavity 9 applies bidirectional uniform confining pressure to the on-site obtained investigation core test piece 13 through the high-pressure sealing rubber sleeve 8. The high-strength bolt 7 is used for fixing the high-pressure sealing rubber sleeve 8 through the connecting flange 6, on one hand, hydraulic oil is prevented from leaking along the end face from the inner wall of the cylinder body 5, and on the other hand, the high-pressure pump 1 is enabled to pressurize or release the pressure of a rock core through the rubber sleeve by fixing the rubber sleeve.
The high-pressure load stabilizer 3 is made of carbon steel or stainless steel bars, a pressure cavity 9 is made of boring holes, the inner diameter is 120mm, and the high-pressure load stabilizer is suitable for a core test piece with the diameter of 30-110 mm. The inner diameter range of the connecting flange 6 is different specifications of 30-110mm, and the connecting flange is suitable for different core test pieces. Correspondingly, the inner diameter range of the high-pressure sealing rubber sleeve 8 is different specifications of 30-110mm, and the loading requirements of different core test pieces are met.
The content of the present invention is not limited to the examples, and any equivalent transformation adopted by the technical solution of the present invention is covered by the claims of the present invention by those skilled in the art through reading the present invention.
Claims (4)
1. Hysteresis elasticity test dead load device of high pressure, including high-pressure pump (1), pressure line (2) and high-pressure dead load appearance (3), its characterized in that: the high-pressure load-stabilizing instrument (3) consists of a cylinder body (5), a pressure cavity (9), a high-pressure sealing rubber sleeve (8), a connecting flange (6), a bolt (7), an oil filling interface (10), an interface (11) of a pressure transmitter and a fixed base (12); the cylinder body (5) is a hollow cylinder, a fixed base (12) is arranged at the bottom of the cylinder body (5), a hollow pressure cavity (9) is arranged in the middle of the cylinder body (5), a high-pressure sealing rubber sleeve (8) is arranged on the inner wall of the pressure cavity (9), connecting flanges (6) are arranged at two ends of the cylinder body (5), and the high-pressure sealing rubber sleeve (8) is fixed in the cylinder body (5) by bolts (7); and an oil filling connector 10 is arranged on the side surface of the cylinder body.
2. The high hysteresis elasticity test dead load device of claim 1, wherein: and the upper end of the cylinder body (5) is provided with a pressure transmitter interface (13).
3. The high hysteresis elasticity test dead load device of claim 1, wherein: the bolt (7) is a high-strength bolt.
4. The high hysteresis elasticity test dead load device of claim 1, wherein: the press sealing rubber sleeve (14) is a cylindrical rubber sleeve matched with the inner shape of the hollow cylinder body, and sealing rings are arranged on the outer edges of two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021206626.5U CN213041620U (en) | 2020-06-28 | 2020-06-28 | Constant load device for high-pressure hysteresis elasticity test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021206626.5U CN213041620U (en) | 2020-06-28 | 2020-06-28 | Constant load device for high-pressure hysteresis elasticity test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213041620U true CN213041620U (en) | 2021-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021206626.5U Active CN213041620U (en) | 2020-06-28 | 2020-06-28 | Constant load device for high-pressure hysteresis elasticity test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213041620U (en) |
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2020
- 2020-06-28 CN CN202021206626.5U patent/CN213041620U/en active Active
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