CN203745309U - Test system for centrifugal machine test platform - Google Patents
Test system for centrifugal machine test platform Download PDFInfo
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- CN203745309U CN203745309U CN201420080253.XU CN201420080253U CN203745309U CN 203745309 U CN203745309 U CN 203745309U CN 201420080253 U CN201420080253 U CN 201420080253U CN 203745309 U CN203745309 U CN 203745309U
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Abstract
The utility model provides a test system for a centrifugal machine test platform. The test system comprises a pressure supply subsystem, a measurement subsystem and a collection control subsystem, wherein the pressure supply subsystem comprises a hydraulic pump, an alternating current power supply, an electromagnetic valve, a pressure sensor, a pressure-feeding oil pipe and a hydraulic control check valve; the measurement subsystem comprises a pressure chamber, a bracket, a displacement sensor, a connecting rod, an inner piston, a measurement head and a pore water pressure and soil pressure sensor; the collection control subsystem comprises sensor connection wires, a collection box, a computer and a hydraulic control check valve control switch; the pressure chamber is connected with the pressure-feeding oil pipe; the collection box is connected with the pressure sensor, the displacement sensor and the pore water pressure and soil pressure sensor respectively through the sensor connection wires; the hydraulic control check valve control switch is connected with the electromagnetic valve. According to the test system for the centrifugal machine test platform, the test efficiency and the test capacity are improved, the application range and the deep test range are expanded, the structural design is optimized, the manufacturing cost is lowered, and the practicability is enhanced.
Description
Technical field
The utility model relates to a kind of test macro, relates in particular to a kind of test macro for centrifuge test platform.
Background technology
Centrifuge model test is by geotechnical model is placed in the hydro-extractor of High Rotation Speed, and the several times that are subject to by model are the acceleration of gravity of hundreds of times extremely, makes geotechnical model in the situation that of minification, can simulate the stress state of the original shape soil body.By model test, can, under the condition of certain similar guide of centrifuge modelling, reduce moulded dimension, shorten the model test time, research engineering practical problems.At present, adopt hydro-extractor to carry out centrifuge modelling tests and become one of effective means of research geotechnical engineering problems.
By configuration on geotechnical centrifuge excavate, fill, hole, the system such as supporting, anchoring, feeler inspection, can in process of the test, be used for simulating corresponding engineering construction process, the engineering problem bringing in order to research structure, loads change and different form of construction work, for mechanical analysis and job design provide test figure.
In prior art, Liu little Gang is at " design of the dynamic trenching machine hand of hydro-extractor " (the application collection of thesis of Chinese Society of Hydraulic Engineers's 2007 Annual Conferences-physical simulation techniques in Geotechnical Engineering, 2007) in and Yang Yongsheng etc. in " geotechnical centrifuge dig a hole mechanical arm " (utility model patent, Granted publication number: 202578699U), disclose and can in centrifuge modelling test, realize the device of digging a hole; The AXIS ROBOT(MODEL R70-L1 of ACTIDYN company) arm-and-hand system of product can work under hydro-extractor acceleration 120g, and system voltage supply mode adopts electric motor, can realize following major function: kinetic measurement; Beat/pile pulling; Horizontal/vertical is to applying external force; Excavation of foundation pit/backfill; Throwing system.
Existing mechanical hand system, although can realize, part engineering construction process is carried out to centrifuge modelling tests, but there is following defect: 1) mainly test two parameters of static point resistance and pore water pressure, the parameter such as can not simultaneously test soil pressure, displacement, exert pressure, testing efficiency is not high, can not multi-angle grasps the situation of change of testee in test process; 2) adopt electric motor for pressure device, voltage supply magnitude-limited, can only reach 3MPa conventionally, can only be applicable to the part test simulation test that pressure is lower, can not apply larger pressure, measure degree more deeply, simulate research object shape arbitrarily, not be suitable for the test of wider range engineering simulation; 3) arm-and-hand system measuring staff is limit by system, under same test condition, can only simulate single project situation, can not the dissimilar project situation of simulation test, and power of test is not high; 4) arm-and-hand system is limit by system, can only simulate certain depth, can not meet the engineering demand of any MTD of simulation test, can not be suitable for more complicated centrifuge modelling test; 5) arm-and-hand system complex structure, system is installed and is difficult in maintenance, and manufacturing cost is high, and practicality is not strong.
In view of this, be necessary to propose a kind of new technical solution.
Utility model content
The purpose of this utility model is for technological deficiency of the prior art, and a kind of test macro for centrifuge test platform is provided, and improves testing efficiency and power of test, expand range of application and depth test scope, optimizing structure design, reduces manufacturing cost, strengthens practicality.
For achieving the above object, the utility model provides a kind of test macro for centrifuge test platform, comprising:
Voltage supply subsystem, this voltage supply subsystem comprises hydraulic pump, this hydraulic pump is connected with AC power and solenoid valve; This solenoid valve is connected with pressure transducer and logical pressuring oil pipe; This logical pressuring oil pipe is equipped with hydraulic control one-way valve;
Measure subsystem, this measurement subsystem comprises pressure chamber, this pressure chamber, and bottom is fixedly connected with support by screw, and sidepiece is connected with this logical pressuring oil pipe; On this support, displacement transducer is installed; One end of connecting rod, is connected with internal piston through this support, and the other end is connected with gauge head; Pore water pressure and soil pressure sensor are installed on this gauge head;
Gather and control subsystem, this collection control subsystem comprises sensor connecting line, vasculum, computing machine and hydraulic control one-way valve gauge tap; This vasculum is connected with this pressure transducer, displacement transducer and pore water pressure and soil pressure sensor respectively by this sensor connecting line; This computing machine is connected with this vasculum; This hydraulic control one-way valve gauge tap is connected with this solenoid valve.
As further improvement of the utility model, this solenoid valve is two-position two-way solenoid valve, and quantity is two.
As further improvement of the utility model, this displacement transducer is LVDT displacement transducer.
As further improvement of the utility model, this connecting rod is connected by connecting rod connecting hole with this gauge head.
As further improvement of the utility model, this connecting rod adjustable length.
As further improvement of the utility model, this gauge head can be adjusted into different sizes and shape according to engineering test demand.
Compared with prior art, the beneficial effects of the utility model are: by a kind of test macro for centrifuge test platform is provided, testing efficiency and power of test are improved, range of application and depth test scope are expanded, optimize structural design, reduce manufacturing cost, strengthened practicality.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model for the test macro of centrifuge test platform;
Fig. 2 is the test macro gauge head planimetric map of the utility model for centrifuge test platform.
Embodiment
Below in conjunction with each embodiment shown in the drawings, the utility model is elaborated; but should be noted that; these embodiments are not limitation of the utility model; those of ordinary skill in the art are according to these embodiment institute work energy, method or structural equivalent transformation or alternative, within all belonging to protection domain of the present utility model.
Shown in ginseng Fig. 1, Fig. 1 is the structural representation of the utility model for the test macro of centrifuge test platform; Fig. 2 is the test macro gauge head planimetric map of the utility model for centrifuge test platform.
In the present embodiment, for the test macro of centrifuge test platform, comprising:
Voltage supply subsystem, this voltage supply subsystem comprises hydraulic pump 11, this hydraulic pump 11 is connected with AC power 12 and solenoid valve 13; This solenoid valve 13 is connected with pressure transducer 14 and logical pressuring oil pipe 15; This logical pressuring oil pipe 15 is equipped with hydraulic control one-way valve 16;
Measure subsystem, this measurement subsystem comprises pressure chamber 21, this pressure chamber 21, and bottom is fixedly connected with support 22 by screw, and sidepiece is connected with this logical pressuring oil pipe 15; On this support 22, displacement transducer 23 is installed; One end of connecting rod 24, is connected with internal piston 25 through this support 22, and the other end is connected with gauge head 26; Pore water pressure and soil pressure sensor 27 are installed on this gauge head 26;
Gather and control subsystem, this collection control subsystem comprises sensor connecting line 31, vasculum 32, computing machine 33 and hydraulic control one-way valve gauge tap 34; This vasculum 32 is connected with this pressure transducer 14, displacement transducer 23 and pore water pressure and soil pressure sensor 27 respectively by this sensor connecting line 31; This computing machine 33 is connected with this vasculum 32; This hydraulic control one-way valve gauge tap 34 is connected with this solenoid valve 13.
This voltage supply subsystem adopts hydraulic pressure, can adjust voltage supply value according to test demand, and maximal value can reach 10Mpa, can simulate and apply larger pressure, measure degree more deeply, simulates research object shape arbitrarily, is applicable to the centrifuge modelling test of wider range and the different soil bodys.
This solenoid valve 13 is two-position two-way solenoid valve, and quantity is two.
This displacement transducer 23 is LVDT displacement transducer.
This connecting rod 24 is connected by connecting rod connecting hole 28 with this gauge head 26.
Under pressure, this connecting rod 24 can be in this interior to-and-fro movement in pressure chamber 21, and the length that regulates this connecting rod 24 with this meets the engineering demand of any MTD of simulation test, can be applicable to more complicated centrifuge modelling test; By controlling the parameters such as upper pressure, soil pressure, pore water pressure and the displacement that native system can synchronous dynamic test model.
This gauge head 26 can be adjusted into different sizes and shape (circular, square or other shapes) according to engineering test demand, is applicable to dissimilar centrifuge modelling test.
The utility model arranges that by multiple positions on this gauge head 26 multiple these pore water pressures and soil pressure sensor 27(are as shown in Figure 2), improve the power of test of equipment.
The material of this connecting rod 24 and gauge head 26 is stainless steel, iron material matter or alloy material.
The utility model, by a kind of test macro for centrifuge test platform is provided, has reached following technique effect:
1) by the realization of synchronous multiparameter dynamic test, improve testing efficiency, grasped the situation of change of testee test process from more perspective;
2) by the larger voltage supply range of adjustment of application, expand the range of application of test macro, can be applicable to the centrifuge modelling test of the different soil bodys;
3) by adjusting gauge head size and shape, applicable to dissimilar centrifuge modelling test, by gauge head more multiple location arrange the sensor of greater number, improved the power of test of equipment;
4) by regulating connecting rod length, expand depth adjustment scope, met the engineering demand of any MTD of simulation test, can be applicable to more complicated centrifuge modelling test;
5) by optimizing structure design, reduce manufacturing cost, saved the installation and maintenance time, there is good practicality and economic benefit.
Listed a series of detailed description is above only illustrating for feasibility embodiment of the present utility model; they are not in order to limit protection domain of the present utility model, all do not depart from the equivalent embodiment that the utility model skill spirit does or change and all should be included in protection domain of the present utility model within.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned example embodiment, and in the situation that not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, is therefore intended to all changes that drop in the implication and the scope that are equal to important document of claim to include in the utility model.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this instructions is described according to embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should make instructions as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Claims (6)
1. for a test macro for centrifuge test platform, it is characterized in that, comprising:
Voltage supply subsystem, described voltage supply subsystem comprises hydraulic pump (11), described hydraulic pump (11) is connected with AC power (12) and solenoid valve (13); Described solenoid valve (13) is connected with pressure transducer (14) and logical pressuring oil pipe (15); Described logical pressuring oil pipe (15) is equipped with hydraulic control one-way valve (16);
Measure subsystem, described measurement subsystem comprises pressure chamber (21), described pressure chamber (21), bottom is fixedly connected with support (22) by screw, and sidepiece is connected with described logical pressuring oil pipe (15); Displacement transducer (23) is installed on described support (22); One end of connecting rod (24), is connected with internal piston (25) through described support (22), and the other end is connected with gauge head (26); Pore water pressure and soil pressure sensor (27) are installed on described gauge head (26);
Gather and control subsystem, described collection control subsystem comprises sensor connecting line (31), vasculum (32), computing machine (33) and hydraulic control one-way valve gauge tap (34); Described vasculum (32) is connected with described pressure transducer (14), displacement transducer (23) and pore water pressure and soil pressure sensor (27) respectively by described sensor connecting line (31); Described computing machine (33) is connected with described vasculum (32); Described hydraulic control one-way valve gauge tap (34) is connected with described solenoid valve (13).
2. the test macro for centrifuge test platform according to claim 1, is characterized in that, described solenoid valve (13) is two-position two-way solenoid valve, and quantity is two.
3. the test macro for centrifuge test platform according to claim 1, is characterized in that, described displacement transducer (23) is LVDT displacement transducer.
4. the test macro for centrifuge test platform according to claim 1, is characterized in that, described connecting rod (24) is connected by connecting rod connecting hole (28) with described gauge head (26).
5. the test macro for centrifuge test platform according to claim 1, is characterized in that, described connecting rod (24) adjustable length.
6. the test macro for centrifuge test platform according to claim 1, is characterized in that, described gauge head (26) can be adjusted into different sizes and shape according to engineering test demand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420080253.XU CN203745309U (en) | 2014-02-23 | 2014-02-23 | Test system for centrifugal machine test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420080253.XU CN203745309U (en) | 2014-02-23 | 2014-02-23 | Test system for centrifugal machine test platform |
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| Publication Number | Publication Date |
|---|---|
| CN203745309U true CN203745309U (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420080253.XU Withdrawn - After Issue CN203745309U (en) | 2014-02-23 | 2014-02-23 | Test system for centrifugal machine test platform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940672A (en) * | 2014-02-23 | 2014-07-23 | 中国水利水电科学研究院 | Testing system used for centrifuge test platform |
| CN104535474B (en) * | 2015-01-06 | 2017-04-12 | 清华大学 | Seepage and solute migration measuring method based on high-density resistivity method |
-
2014
- 2014-02-23 CN CN201420080253.XU patent/CN203745309U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940672A (en) * | 2014-02-23 | 2014-07-23 | 中国水利水电科学研究院 | Testing system used for centrifuge test platform |
| CN103940672B (en) * | 2014-02-23 | 2016-07-06 | 中国水利水电科学研究院 | Test system for centrifuge test platform |
| CN104535474B (en) * | 2015-01-06 | 2017-04-12 | 清华大学 | Seepage and solute migration measuring method based on high-density resistivity method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140730 Effective date of abandoning: 20160706 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |