CN203705267U - Bearing soil constant pressure loading testing equipment - Google Patents
Bearing soil constant pressure loading testing equipment Download PDFInfo
- Publication number
- CN203705267U CN203705267U CN201320818514.9U CN201320818514U CN203705267U CN 203705267 U CN203705267 U CN 203705267U CN 201320818514 U CN201320818514 U CN 201320818514U CN 203705267 U CN203705267 U CN 203705267U
- Authority
- CN
- China
- Prior art keywords
- pressure
- cylinder
- bearing soil
- oil cylinder
- valve
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses bearing soil constant pressure loading testing equipment. The bearing soil constant pressure loading testing equipment comprises a test bed (1), a control box (4) and a hydraulic station (5), wherein the test bed (1) comprises a bearing soil testing cylinder (13) and a pressurizing oil cylinder (11); a pressure gauge (41) of the control box is connected to the pressurizing oil cylinder (11); the hydraulic station (5) comprises an oil tank (58), an oil pump (51) with an oil suction port communicated with the oil tank (58), a motor (52) connected with the oil pump (51), and an overflow valve (57) and a control valve (53) which are serially connected with an oil outlet of the oil pump (51) in sequence, and a pressurizing oil cylinder (11) and a hydraulic control one-way valve (54) which are serially connected with the control valve (53) in sequence, an energy accumulator (55) connected with the hydraulic control one-way valve (54), and a pressurizing oil cylinder (11) connected with the energy accumulator (55); the motor (52) is connected to a control panel (42). The equipment can load bearing soil at constant pressure, and is suitable for teaching experiments.
Description
Technical field
The utility model relates to a kind of pressure-bearing soil constant voltage load test equipment, is applicable to small-scale pressure-bearing soil teaching test.
Background technology
The student of civil engineering need to learn the course of soil test, measures exactly the various mechanical index of soil sample, as: classification, unit dry weight, bearing capacity, porosity etc.But, in practical application for the testing equipment of native bearing capacity generally bulky, cost is high, control system is complicated, be not suitable for the small-scale teaching test of school and use.
Summary of the invention
For above-mentioned existing technical matters, the utility model provides a kind of pressure-bearing soil constant voltage load test equipment, provides constant voltage to load by design hydraulic system to sample soil, and simple in structure, easy to use, to facilitate small-scale education experiment.
The utility model comprises testing table, control box and Hydraulic Station.Wherein: testing table comprises the pressure-bearing soil test cylinder (jar) that loads support, be arranged on loading frame bottom, the pressurization oil cylinder that is lifted on a loading top of the trellis, and the just cylinder mouth to test cylinder (jar) of pressurization oil cylinder piston area.Pressure-bearing soil test cylinder (jar) is for holding the native sample of test, and pressurization oil cylinder can be exerted pressure to sample soil by its piston end, and it is constant that the utility model is set this applied pressure, realizes by control box and Hydraulic Station.
Control box is provided with the high-precision tensimeter for response sample soil bearing capacity, and for controlling the control panel of hydraulic unit.
Hydraulic Station comprises fuel tank, inlet port is communicated with the oil pump of fuel tank, the motor being connected with oil pump, the surplus valve that oil pump oil-out is connected in series successively and operation valve, surplus valve is opened herein, can make the unnecessary flow that flows out in the oil pump oil return case that overflows, and guarantees surplus valve intake pressure, be that oil pump top hole pressure is constant, the test effect loading to reach constant voltage.
Hydraulic Station also comprises pressurization oil cylinder and the hydraulic control one-way valve that operation valve is connected in series successively, the accumulator being connected with hydraulic control one-way valve, the pressurization oil cylinder being connected with accumulator.Wherein, accumulator is a kind of energy savings device in hydropneumatic system, and it is in due course and changes the energy in system into compression energy or potential energy stores, in the time that system needs, again compression energy or potential energy changed into the energy such as hydraulic pressure or air pressure and discharge, again mending feed system.When system oil pressure is greater than authorised pressure, hydraulic control one-way valve is opened pressure release, and when oil pressure is during lower than authorised pressure, hydraulic control one-way valve is closed, with the pressure accumulation of guaranteeing that accumulator can be real-time.When motor stopping but system while still needing to maintain certain pressure, can stop oil pump and by the leakage of accumulator bucking-out system, with the pressure of keeping system, with the test effect of guaranteeing that constant voltage loads.
Further, pressurization oil cylinder is identical with the cylinder barrel diameter of pressure-bearing soil test cylinder (jar).By piston, pressure is passed to the pressure-bearing soil test cylinder (jar) that pressure-bearing earth sample is housed due to pressurization oil cylinder, so the namely pressure of pressure-bearing soil in pressure-bearing soil test cylinder (jar) of the oil pressure that tensimeter shows conveniently gets information about pressure condition.
Further, in control box, be also provided with timer, can automatically start Hydraulic Station by setting-up time, strengthen the intellectuality of equipment.
Further, operation valve is M type three-position four-way valve.Three position four-way directional control valve is by means of the relative motion between guiding valve and valve body, make the each oil circuit being connected with valve body realize connection, cut-out and the commutation of hydraulic oil stream, all gapped leakage phenomenons of this class spool-type valves, can only short time pressurize, but the hydraulic control one-way valve on cooperation oil circuit, the tightness of utilizing cone valve to close, can reach the long-time pressurize of oil circuit, realizes pressurize requirement of the present utility model.
Further, the pressure in accumulator can produce with pressure gas, weight or spring, and correspondingly accumulator is divided into gas type, Weight type and spring, and because gas type accumulator structure is simple, capacity is large, therefore accumulator is preferably gas type accumulator,
To sum up, the utlity model has following advantage: 1, adopt pilot operated compound relief valve, hydraulic control one-way valve, accumulator carrys out adjustment and the maintenance of test pressure.2, pressurization oil cylinder and pressure-bearing olla body adopt the cylinder barrel of same diameter can conveniently read pressure value.3, in control box, adopt Timer Controlling, improve the intelligent level of equipment, easy to use, more can carry out unattended.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 hydraulic schematic diagram of the present utility model.
In figure: 1, testing table, 11, pressurization oil cylinder, 12, load support, 13, pressure-bearing soil test cylinder (jar), 4, control box, 41, tensimeter, 42, control panel, 5, Hydraulic Station, 51, oil pump, 52, motor, 53, operation valve, 54, hydraulic control one-way valve, 55, accumulator, 57, surplus valve, 58, fuel tank.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the utility model comprises testing table 1, control box 4 and Hydraulic Station 5; Described testing table 1 comprises the pressure-bearing soil test cylinder (jar) 13 that loads support 12, be arranged on loading support 12 bottoms, the pressurization oil cylinder 11 that is lifted on loading support 1 top, and the just cylinder mouth to test cylinder (jar) 13 of pressurization oil cylinder 11 piston areas; Described control box 4 is provided with tensimeter 41 and control panel 42, and tensimeter 41 connects pressurization oil cylinder 11; Described Hydraulic Station 5 comprises fuel tank 58, inlet port is communicated with the oil pump 51 of fuel tank 58, the motor 52 being connected with oil pump 51, the surplus valve 57 that oil pump 51 oil-outs are connected in series successively and operation valve 53, the pressurization oil cylinder 11 that operation valve 53 is connected in series successively and hydraulic control one-way valve 54, the accumulator 55 being connected with hydraulic control one-way valve 54, the pressurization oil cylinder 11 being connected with accumulator 55.
In above-described embodiment, the cylinder barrel of pressurization oil cylinder 11 and pressure-bearing soil test cylinder (jar) 13 preferably same diameters, the oil pressure that so tensimeter 6 shows is the pressure of pressure-bearing soil in pressure-bearing soil test cylinder (jar) 13 namely.
In the various embodiments described above, in control box 4, be also provided with timer, can set at interval of one to three hour startup Hydraulic Station 5, because pilot operated compound relief valve 57 has been adjusted output pressure, so just can realize unattended long-time permanent load test demand.
In the various embodiments described above, operation valve 53 is M type three-position four-way valve, can coordinate the hydraulic control one-way valve 54 in downstream to realize voltage stabilizing.
In the various embodiments described above, accumulator 55 is gas type accumulator, and gas can be nitrogen, simple in structure.
With reference to hydraulic principle Fig. 2, the course of work of the utility model hydraulic system is as follows: first, by the start-stop button starter motor 52 in control panel 42 on control box 4, motor 52 drives oil pump 51 to rotate, after hydraulic oil is extracted out in fuel tank 58 by oil pump 51, pressurize to pressurization oil cylinder 11 back cavities by operation valve 53 successively, and adjust by pilot operated compound relief valve 57 hydraulic fluid pressure that oil pump 51 is exported, make it keep constant voltage stable.Secondly, hydraulic oil flows to accumulator 55 by hydraulic control one-way valve 54, and when pressurization oil cylinder 11 pressurizes, accumulator 55 is also at real-time oil-filled pressure accumulation.In the time that hydraulic system stops pressurizeing, end oil return by hydraulic control one-way valve 54, with keeping system pressure, in accumulator 55, compressed high pressure nitrogen can compensate the pressure loss that pressurization oil cylinder 11 piston minor leakage cause simultaneously, guarantees that system pressure is constant.Moreover as shown in structural drawing 1, pressurization oil cylinder 11 passes to pressure by piston the pressure-bearing soil test cylinder (jar) 13 that pressure-bearing earth sample is housed, and can read from tensimeter 6 pressure of pressure-bearing soil in pressure-bearing soil test cylinder (jar) 13.
Claims (6)
1. a pressure-bearing soil constant voltage load test equipment, is characterized in that, comprises testing table (1), control box (4) and Hydraulic Station (5);
Described testing table (1) comprises the pressure-bearing soil test cylinder (jar) (13) that loads support (12), be arranged on loading support (12) bottom, the pressurization oil cylinder (11) that is lifted on loading support (1) top, and the just cylinder mouth to the native test cylinder (jar) of pressure-bearing (13) of pressurization oil cylinder (11) piston area;
Described control box (4) is provided with tensimeter (41) and control panel (42), and tensimeter (41) connects pressurization oil cylinder (11);
Described Hydraulic Station (5) comprises fuel tank (58), inlet port is communicated with the oil pump (51) of fuel tank (58), the motor (52) being connected with oil pump (51), the surplus valve (57) that oil pump (51) oil-out is connected in series successively and operation valve (53), the pressurization oil cylinder (11) that operation valve (53) is connected in series successively and hydraulic control one-way valve (54), the accumulator (55) being connected with hydraulic control one-way valve (54), and the pressurization oil cylinder (11) being connected with accumulator (55); Described motor (52) connects control panel (42).
2. a kind of pressure-bearing soil constant voltage load test equipment according to claim 1, is characterized in that, described pressurization oil cylinder (11) is identical with the cylinder barrel diameter of pressure-bearing soil test cylinder (jar) (13).
3. a kind of pressure-bearing soil constant voltage load test equipment according to claim 1 and 2, is characterized in that, in described control box (4), is also provided with timer.
4. a kind of pressure-bearing soil constant voltage load test equipment according to claim 1 and 2, is characterized in that, described operation valve (53) is M type three-position four-way valve.
5. a kind of pressure-bearing soil constant voltage load test equipment according to claim 3, is characterized in that, described operation valve (53) is M type three-position four-way valve.
6. a kind of pressure-bearing soil constant voltage load test equipment according to claim 1 and 2, is characterized in that, described accumulator (55) is gas type accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320818514.9U CN203705267U (en) | 2013-12-13 | 2013-12-13 | Bearing soil constant pressure loading testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320818514.9U CN203705267U (en) | 2013-12-13 | 2013-12-13 | Bearing soil constant pressure loading testing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203705267U true CN203705267U (en) | 2014-07-09 |
Family
ID=51055688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320818514.9U Expired - Fee Related CN203705267U (en) | 2013-12-13 | 2013-12-13 | Bearing soil constant pressure loading testing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203705267U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507016A (en) * | 2018-12-26 | 2019-03-22 | 西安建筑科技大学 | A kind of multifactor Under Concrete durability test dynamic loading device and method |
| CN109763524A (en) * | 2018-12-29 | 2019-05-17 | 上海建工集团股份有限公司 | For the experimental rig of steel support shaft force compensating device, pilot system and method |
| CN110131241A (en) * | 2019-06-11 | 2019-08-16 | 兖州煤业股份有限公司 | Development machine crawler tensioning plunger cylinder total travel pressure test device and its method |
-
2013
- 2013-12-13 CN CN201320818514.9U patent/CN203705267U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507016A (en) * | 2018-12-26 | 2019-03-22 | 西安建筑科技大学 | A kind of multifactor Under Concrete durability test dynamic loading device and method |
| CN109763524A (en) * | 2018-12-29 | 2019-05-17 | 上海建工集团股份有限公司 | For the experimental rig of steel support shaft force compensating device, pilot system and method |
| CN109763524B (en) * | 2018-12-29 | 2021-06-11 | 上海建工集团股份有限公司 | Testing device, testing system and testing method for steel support axial force compensation device |
| CN110131241A (en) * | 2019-06-11 | 2019-08-16 | 兖州煤业股份有限公司 | Development machine crawler tensioning plunger cylinder total travel pressure test device and its method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203705267U (en) | Bearing soil constant pressure loading testing equipment | |
| CN101625002A (en) | Hydraulic control system of lifting cylinders of mobile stage vehicle | |
| CN204458573U (en) | A kind of hydraulic system of electromagnetic priority valve durability test | |
| CN201569906U (en) | Hydraulic and electronic integration closed loop proportioning controller | |
| CN203845759U (en) | Automatic-leveling hydraulic device of scissor lift | |
| CN106704275B (en) | Hydraulic loading system of hydraulic pitch control test bed of wind generating set | |
| CN106050804A (en) | Test system for hydraulic shock waveform control | |
| CN203266473U (en) | Pneumatic clamping device | |
| CN205138903U (en) | Servo booster and pulse testing system who contains it | |
| CN203809416U (en) | Hydraulic power source supply system | |
| CN204328428U (en) | A kind of lubricating grease centralizedly supply device | |
| CN103899463A (en) | Multi-stage buffer type relief valve | |
| CN110007702B (en) | High-pressure and automatic-control aviation fuel test bed oil supply system | |
| CN203798561U (en) | Loading system for sliding bearing test bed | |
| CN204134824U (en) | A kind of automatic oiling frock of air-conditioner controller | |
| CN203476848U (en) | Low-noise hydraulic load simulation device | |
| CN207556826U (en) | Fuel pipe life cycle experimental rig | |
| CN203458956U (en) | Pneumatic spray device | |
| CN208669752U (en) | A kind of oil cylinder control examining system | |
| CN109538546B (en) | Airborne negative-load hydraulic supercharging equipment | |
| CN205919954U (en) | Control valve high -pressure gas pressure and flow analogue test device | |
| CN202283509U (en) | Gas-liquid pressurizing high pressure generating device of spraying system | |
| CN202394061U (en) | Test control device for vectoring nozzle of aircraft engine | |
| CN202066682U (en) | Improved static load test device for overhead floor | |
| CN105003490A (en) | Agricultural machine hydraulic power source mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140709 Termination date: 20141213 |
|
| EXPY | Termination of patent right or utility model |