CN205262874U - A press for testing stabilized soil test block compressive strength - Google Patents
A press for testing stabilized soil test block compressive strength Download PDFInfo
- Publication number
- CN205262874U CN205262874U CN201521132974.1U CN201521132974U CN205262874U CN 205262874 U CN205262874 U CN 205262874U CN 201521132974 U CN201521132974 U CN 201521132974U CN 205262874 U CN205262874 U CN 205262874U
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- CN
- China
- Prior art keywords
- test block
- hydraulic pump
- leading screw
- stabilized soil
- end cover
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- 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
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Abstract
The utility model relates to a press for testing stabilized soil test block compressive strength, including the organism, this organism has hollow cavity, is provided with pneumatic cylinder device, elevating platform and test piece mould in the organism, threaded connection between the top cap of lead screw and organism, be provided with hydraulic pump and treater in the control box, the business turn over hydraulic fluid port of hydraulic pump passes through hydraulic pressure oil pipe and constitutes hydraulic oil circulation circuit with the business turn over hydraulic fluid port of pneumatic cylinder device, and the treater is used for the displacement signal control hydraulic pump action according to the displacement sensor feedback, during operating condition, it has load weighted stabilized soil material to fill in the test piece mould, and the upper end cover setting just is located stabilized soil material top in the test piece mould, and rotary screw applys the precompression through the upper end cover to the stabilized soil material, then moves through the displacement signal control hydraulic pump of treater according to the displacement sensor feedback. The utility model discloses can effectively solve the press and artificially interfere the factor in the course of the work, problem with the compaction intensity accurately recorded of test block reduces experimental error.
Description
Technical field:
The utility model belongs to construction material lab-size equipment technical field, is specifically related to a kind of steady for testingThe forcing press of fixed native test block pressure resistance intensity.
Background technology:
Two important indicators weighing Stabilized Soil material are exactly Stabilized Soil intensity and durability, and wherein Stabilized Soil is strongWhat degree referred to the common use of intensity index is the 7d unconfined compressive strength in the length of time. Therefore the performance of forcing press is directAffect the compression strength of institute's test block. Tradition forcing press is generally that test specimen is put on lifting platform, by bottom liquidCylinder pressure drives the moving up and down of lifting platform, but judge when whether test specimen reaches the good standard of compacting and observe and tryWhether the upper end of part mould contacts with top board, but we often find due in mould in experimentationThe inhomogeneities of material causes the top of mould can not contact with top board simultaneously, will cause like this because of range estimationError causes the false judgment of experiment, thereby causes the compression strength of test specimen not reach requirement of experiment.
Utility model content:
The technical problems to be solved in the utility model is to provide a kind of for stable testing soil test block pressure resistance intensityForcing press, it efficiently solves external factor interference and causes the failure of an experiment problem.
The utility model is achieved through the following technical solutions:
For a forcing press for stable testing soil test block pressure resistance intensity, comprise body, leading screw, upper end cover andControl cabinet, this body has the cavity of hollow, and the bottom in body is disposed with hydraulic cylinder dress from bottom to topPut, lifting platform and test piece mould, leading screw in the vertical direction is applied on the top cover of body, and leading screw and machineBetween the top cover of body, be threaded, the bottom of leading screw is provided with displacement transducer;
In control cabinet, be provided with hydraulic pump and processor, the oil inlet and outlet of hydraulic pump is by hydraulic oil pipe and hydraulic pressureThe oil inlet and outlet composition hydraulic oil closed circuit of cylinder assembly, the position of processor for feeding back according to displacement transducerThe action of shifting signal control hydraulic pump;
When duty, be filled with load weighted Stabilized Soil material in test piece mould, upper end cover is arranged on test specimenIn mould, and be positioned at Stabilized Soil material top, rotating threaded shaft applies precompressed by upper end cover to Stabilized Soil materialPower, then moves according to the displacement signal control hydraulic pump of displacement transducer feedback by processor.
The utility model further improves and is provided with the rotary handle for auxiliary leading screw in, the top of leading screw.
The utility model further improves to be provided with in, the bottom of leading screw for auxiliary upper end cover is applied in advanceThe top board of pressure, displacement transducer is arranged on the bottom of top board.
The utility model further improve in, the bottom even of top board is provided with four displacement transducers.
The utility model further improve in, control cabinet is outside equipped with display floater and guidance panel.
The utility model further improve in, control cabinet is also provided with the flow speed control valve for controlling hydraulic pump outwardAnd relief valve.
Now, for prior art, the utlity model has following advantage:
A kind of forcing press for stable testing soil test block pressure resistance intensity the utility model proposes, has consideredBecause human error causes the factor of the failure of an experiment, so adopt Based Intelligent Control herein, there is processor control test blockWhether compacting is good. So just solve the interference of extraneous factor, made experimental data have more contrastAnd convincingness.
Brief description of the drawings:
Fig. 1 is the front view of a kind of forcing press for stable testing soil test block pressure resistance intensity of the utility model;
Fig. 2 is the top view of a kind of forcing press for stable testing soil test block pressure resistance intensity of the utility model;
Fig. 3 is the graphics of a kind of forcing press for stable testing soil test block pressure resistance intensity of the utility model.
In figure: 1-rotary handle, 2-displacement transducer, 3-body, 4-hydraulic cylinder device, 5-leading screw, on 6-Pressing plate, 7-upper end cover, 8-test piece mould, 9-display floater, 10-guidance panel, 11-lifting platform, 12-controlsCase, 13-flow speed control valve, 14-relief valve, 15-hydraulic oil pipe.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figures 1 to 3, a kind of forcing press for stable testing soil test block pressure resistance intensity of the utility model,Comprise body 3, leading screw 5, upper end cover 7 and control cabinet 12, this body 3 has the cavity of hollow, body 3Interior bottom is disposed with hydraulic cylinder device 4, lifting platform 11 and test piece mould 8, leading screw 5 from bottom to topIn the vertical direction is applied on the top cover of body 3, and is threaded between leading screw 5 and the top cover of body 3,The bottom of leading screw 5 is provided with displacement transducer 2; In control cabinet 12, be provided with hydraulic pump and processor, hydraulic pressureThe oil inlet and outlet of pump loops back by hydraulic oil pipe 15 and the oil inlet and outlet composition hydraulic oil of hydraulic cylinder device 4Road, the displacement signal control hydraulic pump action of processor for feeding back according to displacement transducer 2; DutyTime, in test piece mould 8, being filled with load weighted Stabilized Soil material, upper end cover 7 is arranged in test piece mould 8,And be positioned at Stabilized Soil material top, rotating threaded shaft 5 applies precompression by upper end cover 7 to Stabilized Soil material,The displacement signal control hydraulic pump action of then feeding back according to displacement transducer 2 by processor.
Wherein, the top of leading screw 5 is provided with the rotary handle 1 for auxiliary leading screw 5, bottom be provided with forThe auxiliary top board 6 that upper end cover 7 is applied to precompression, displacement transducer 2 is arranged on the bottom of top board 6,Preferably, the bottom even of top board 6 is provided with four displacement transducers 2.
Control cabinet 12 is outside equipped with display floater 9 and guidance panel 10 and for controlling the speed governing of hydraulic pumpValve 13 and relief valve 14.
When work, load weighted Stabilized Soil material is packed in test piece mould 8, upper end cover 7 is put into test specimenIn mould 8, test piece mould 8 is put on lifting platform 11, rotates rotary handle 1 and make top board 6 be pressed onto examinationOn upper end cover 7 on part mould 8, because material in test piece mould 8 can not reach the desirable uniformity, thereforeUpper end cover 7 can not contact completely with top board 6, opens the hydraulic oil pump of control section, drives hydraulic cylinder dressPut 4 rising is set, and then lifting platform 11 rises, the distance of displacement transducer 2 is the height of test piece mould 8,Displacement transducer 2, by 4, distributes one every 90 degree phase angles, only has four displacement transducers 2 simultaneouslyWhile reaching the height of test piece mould 8, control section will continue fuel feeding, hydraulic cylinder device 4 by stop solution press pumpStop motion and then lifting platform 11 stop motions, system enters packing state, can be by adjusting in experimentationThereby whole flow speed control valve 13 regulates hydraulic fluid flow rate to regulate the movement velocity of lifting platform 11. In the time that pressurize is suitableBetween after, open relief valve 14 pressure releases and get test specimen, record display floater 9 data, in guidance panel 10, establishPut the maximum pressure of system, prevent that pressure from exceeding the allowable pressure of hydraulic means, ensure the peace of experiment and equipmentQuan Xing.
Claims (6)
1. for a forcing press for stable testing soil test block pressure resistance intensity, it is characterized in that, comprise body (3),Leading screw (5), upper end cover (7) and control cabinet (12), this body (3) has the cavity of hollow, body (3)Interior bottom is disposed with hydraulic cylinder device (4), lifting platform (11) and test piece mould (8) from bottom to top,Leading screw (5) in the vertical direction is applied on the top cover of body (3), and leading screw (5) and body (3)Top cover between be threaded, the bottom of leading screw (5) is provided with displacement transducer (2);
Control cabinet is provided with hydraulic pump and processor in (12), and the oil inlet and outlet of hydraulic pump passes through hydraulic oil pipe(15) form hydraulic oil closed circuit with the oil inlet and outlet of hydraulic cylinder device (4), processor is used for according to positionThe displacement signal control hydraulic pump action of displacement sensor (2) feedback;
When duty, in test piece mould (8), be filled with load weighted Stabilized Soil material, upper end cover (7)Be arranged in test piece mould (8), and be positioned at Stabilized Soil material top, rotating threaded shaft (5) passes through upper end cover(7) Stabilized Soil material is applied to precompression, then feed back according to displacement transducer (2) by processorThe action of displacement signal control hydraulic pump.
2. a kind of forcing press for stable testing soil test block pressure resistance intensity according to claim 1, itsBe characterised in that, the top of leading screw (5) is provided with the rotary handle (1) for auxiliary leading screw (5).
3. a kind of forcing press for stable testing soil test block pressure resistance intensity according to claim 1, itsBe characterised in that, the bottom of leading screw (5) is provided with the upper pressure that upper end cover (7) is applied to precompression for auxiliaryPlate (6), displacement transducer (2) is arranged on the bottom of top board (6).
4. a kind of forcing press for stable testing soil test block pressure resistance intensity according to claim 3, itsBe characterised in that, the bottom even of top board (6) is provided with four displacement transducers (2).
5. a kind of forcing press for stable testing soil test block pressure resistance intensity according to claim 1, itsBe characterised in that, control cabinet (12) is outside equipped with display floater (9) and guidance panel (10).
6. a kind of forcing press for stable testing soil test block pressure resistance intensity according to claim 5, itsBe characterised in that, outside control cabinet (12), be also provided with flow speed control valve (13) and the relief valve for controlling hydraulic pump (14)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521132974.1U CN205262874U (en) | 2015-12-30 | 2015-12-30 | A press for testing stabilized soil test block compressive strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521132974.1U CN205262874U (en) | 2015-12-30 | 2015-12-30 | A press for testing stabilized soil test block compressive strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205262874U true CN205262874U (en) | 2016-05-25 |
Family
ID=56004396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521132974.1U Expired - Fee Related CN205262874U (en) | 2015-12-30 | 2015-12-30 | A press for testing stabilized soil test block compressive strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205262874U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768747A (en) * | 2016-12-27 | 2017-05-31 | 沪东中华造船(集团)有限公司 | A kind of LNG ship insulated case pressure-bearing testing device and test method |
| CN107490595A (en) * | 2017-09-21 | 2017-12-19 | 北京工业大学 | A kind of normal load influences the assay method and device of relation on faying face thermal contact resistance |
| CN108896406A (en) * | 2018-09-25 | 2018-11-27 | 贵州顺康路桥咨询有限公司 | A kind of concrete crushing strength and shrinkage and creep testing equipment |
-
2015
- 2015-12-30 CN CN201521132974.1U patent/CN205262874U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768747A (en) * | 2016-12-27 | 2017-05-31 | 沪东中华造船(集团)有限公司 | A kind of LNG ship insulated case pressure-bearing testing device and test method |
| CN107490595A (en) * | 2017-09-21 | 2017-12-19 | 北京工业大学 | A kind of normal load influences the assay method and device of relation on faying face thermal contact resistance |
| CN108896406A (en) * | 2018-09-25 | 2018-11-27 | 贵州顺康路桥咨询有限公司 | A kind of concrete crushing strength and shrinkage and creep testing equipment |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20161230 |