CN110426288A - A kind of full-automatic Point Load Strength Instrument of fluid pressure type and test method - Google Patents
A kind of full-automatic Point Load Strength Instrument of fluid pressure type and test method Download PDFInfo
- Publication number
- CN110426288A CN110426288A CN201910722177.5A CN201910722177A CN110426288A CN 110426288 A CN110426288 A CN 110426288A CN 201910722177 A CN201910722177 A CN 201910722177A CN 110426288 A CN110426288 A CN 110426288A
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- circular cone
- ball end
- test
- hydraulic
- rock sample
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of full-automatic Point Load Strength Instruments of fluid pressure type, including hydraulic operation cabinet, the hydraulic motor unit to loading is placed in the hydraulic operation cabinet, telescopic piston guide rod is provided with above the hydraulic motor unit, the piston guide rod is connect with the sliding block being arranged in increased pressure frame, to drive sliding block to move up and down；Lower ball end circular cone is mounted on sliding block, and upper ball end circular cone is fixed on increased pressure frame, and ball end circular cone comes into full contact with rock sample up and down when test, for fixing rock sample and carrying out applied voltage test；Upper ball end circular cone is equipped with pressure sensor, for measuring test loading pressure, displacement sensor is arranged on sliding block, reads rock sample displacement for surveying.Rock sample bears stability, accuracy and the time controllability of pressure when the present invention is able to satisfy test, and the displacement for reading test specimen in loading process can be surveyed at any time, the accuracy and test accuracy for improving pressure conduction ensure that the safety and environmental sanitation of test.
Description
Technical field
It is a kind of fluid pressure type full automatic point load for rock sample indoor test the present invention relates to geotechnical engineering testing field
Tester and test method.
Background technique
Point Load Tests are a kind of compression strength that rock, concrete or other natural building materials are tested under point loading
Short-cut method, the especially decayed rock to laboratory test sample preparation difficulty, weak broken rock etc..The test is by rock etc.
Sample is placed between two ball end circular cones of point loading instrument, applies vertical load until test specimen destroys.It generallys use at present
Be Point Load Strength Instrument, pressurized equipment mainly uses jack.Two mainly rock sample is placed in increased pressure frame
Between the circular cone of a ball end, axial compressive force is applied using manual operation jack pair sample and is allowed to destroy, by being placed in upper ball end
Pressure sensor on circular cone exports failing load, and the loading point spacing for reading flash disruption is manually estimated using scale.Traditional
It is uniform and stable that Point Load Strength Instrument has the disadvantage in that 1, existing test specification requires test to answer when being further applied load to sample, and
When destroying in 10s~60s, and being manually further applied load at present using jack, it is not easily achieved uniform and stable and controls the time, no
But laborious and test accuracy is lower；2, when code requirement is had ready conditions, test specimen should be measured and destroy the loading point spacing of moment, and showed
Row equipment mostly uses scale manual measurement, be difficult accurately read destroy moment loading point spacing, and manually reading exist compared with
Big error；3, existing tester all uses open, and test specimen destroys the fragment generated when bursting apart and is easy to hurt operator；4,
The test specimen fragment clast that test generates splashes everywhere, pollutes environment, and it is also inconvenient to clean.
When traditional Point Load Strength Instrument is tested in a word, manpower is not only consumed, test accuracy is low, and rubble holds
It easily splashes and hurts operator, risk is big, and there are security risks, and the waste residue generated not easy cleaning.It for these reasons, is satisfaction
Experimental technique automation requires, and improves working efficiency and test accuracy, overcomes artificial jack to pressurize inaccurate with rod reading
The shortcomings that true property and open-sky technique not can guarantee personnel safety and environmental sanitation when testing, devises the present apparatus and test
Method.
Summary of the invention
The purpose of the present invention is to provide a kind of full-automatic Point Load Strength Instruments of fluid pressure type, and rock tried when being both able to satisfy test
Part bears stability, accuracy and the time controllability of pressure, and can survey the displacement for reading test specimen in loading process at any time, improves
The accuracy and test accuracy of pressure conduction, ensure that the safety and environmental sanitation of test.
To achieve the goals above, the technical scheme is that a kind of full-automatic Point Load Strength Instrument of fluid pressure type, special
Sign is that the full-automatic Point Load Strength Instrument of the fluid pressure type includes
Hydraulic operation cabinet, the safety guard plate that hydraulic operation cabinet top is equipped with increased pressure frame and is located above increased pressure frame, institute
The hydraulic motor unit placed in hydraulic operation cabinet to loading is stated, is provided with above the hydraulic motor unit telescopic
Piston guide rod, the piston guide rod are connect with the sliding block being arranged in increased pressure frame, to drive sliding block to move up and down；
Pressure structure, the pressure structure include the lower ball end circular cone being mounted on sliding block, and are located on the circular cone of lower ball end
The upper ball end circular cone of square and corresponding setting, upper ball end circular cone are fixed on increased pressure frame, rock sample setting
Between lower ball end circular cone and upper ball end circular cone, ball end circular cone comes into full contact with rock sample up and down when test, for consolidating
Determine rock sample and carries out applied voltage test；
Pressure sensor, the pressure sensor and upper ball end circular cone are connected and fixed on increased pressure frame, by conducting wire with
External computer acquisition system connection, for measuring test loading pressure；
Displacement sensor, institute's displacement sensors are fixed on increased pressure frame, are connect by conducting wire with external computer acquisition system,
Rock sample displacement is read for surveying, sensor terminal is placed on sliding block when test.
Further, increased pressure frame includes the increased pressure frame pedestal being set to above hydraulic operation cabinet, and is located at pressurization
The increased pressure frame rod piece of frame base two sides, the both ends of the sliding block pass through the increased pressure frame rod piece of two sides, and can be along pressure frame
Hack lever part slides up and down.
Further, increased pressure frame pedestal is equipped with a pallet being obliquely installed, for collecting rock sample fragment.
Further, one end of the pallet is set on increased pressure frame pedestal, and tray bottom is arranged at the other end
There is steel support, so that the pallet is set on increased pressure frame pedestal in 20 ~ 40 DEG C of inclination angles.
Further, the safety guard plate is totally enclosed type organic glass protective cover, passes through fixed screw and pressure frame
Frame is connected, and switchable door is arranged using hinge and lock in organic glass shield front, convenient for test handling rock
Test specimen and cleaning rubble.
Further, the hydraulic operation cabinet is provided with station, and operating table surface is tilted in 30 DEG C, is arranged in operating table surface
Pressure regulator valve can control hydraulic motor unit loading size and rate of loading by regulating valve, to control the upper and lower of piston guide rod
It is mobile.
Further, motor control assembly is set in the operating table surface of operation cabinet, and motor control assembly and hydraulic electric motor fill
Connection is set, for controlling the operation of hydraulic motor unit.
Another object of the present invention is to provide a kind of test method of the full-automatic Point Load Strength Instrument of fluid pressure type, Ji Nengman
Rock sample bears stability, accuracy and the time controllability of pressure when foot test, and can survey at any time and read test specimen in loading
Displacement in journey improves the accuracy and test accuracy of pressure conduction, ensure that the safety and environmental sanitation of test.
A kind of test method of the full-automatic Point Load Strength Instrument of fluid pressure type, it is characterised in that the test method includes following
Step:
Start pressure regulation control valve device and adjust oil pressure size, promotes piston guide rod fast uplink using hydraulic device, push sliding block
It moves up, goes upward to when can be packed into the spacing of rock sample size between the circular cone of upper ball end, using tune with lower ball end circular cone
Pressure valve makes hydraulic stopping, and lower ball end circular cone also stops uplink therewith；
Organic glass hood door is opened, rock sample is loaded between lower ball end circular cone and upper ball end circular cone, starts liquid
Pressure makes lower ball end circular cone continue low speed upstream, closes in hydraulic stopping when upper and lower ball end circular cone and rock sample come into full contact with
Row；
Displacement sensor and pressure sensor are set, organic glass hood door is closed and is fastened, is then started hydraulic and outer
Portion's computer acquisition system, is tested by the rate of loading of code requirement and acquires test data；
Hydraulic stopping test being closed after rock sample is broken, is opened hood door, is cleared up tray bottom rubble, hydraulic device is multiple
Original is ready for lower battery of tests.
The present invention uses hydraulic pressing device, can control loading size, and rate of loading can be set as needed, than passing
System uses the artificial loading of jack more stable, and loading times easier to control, rock sample stress is also uniform, improves the accurate of test
Property；Using displacement sensor, whole rock sample deflection can be recorded, and can accurately measure the loading point spacing of flash disruption, than passing
System improves precision using scale manual measurement；Using totally enclosed organic glass shield, rock in test can be effectively prevent
Rubble when sample bursts apart splashes, and ensure that the safety of test operator；In addition this experimental rig be provided with tilt tray, can and
When and facilitate collect rock sample fragment, ensure that experimental enviroment sanitary.Hydraulic operation cabinet operation panel of the invention uses 30
The setting of DEG C inclination angle convenient for reading and operation, and is embedded with pressure regulation control valve device and motor control assembly, for controlling hydraulic device
Switch and add release.
Detailed description of the invention
Fig. 1 is structure front schematic view of the invention.
Fig. 2 is texture edge schematic diagram of the invention.
Fig. 3 is organic glass shield schematic diagram.
It include: 1- hydraulic motor unit in figure；2- pressure regulating valve device；3- motor control assembly；4- sliding block；Ball end under 5-
Circular cone；The upper ball end circular cone of 6-；7- displacement sensor；8- pressure sensor；9- increased pressure frame；10- pallet；The support of 11- steel；12-
Lock；13- organic glass shield；14- hydraulic operation cabinet；15- operation panel；16- fixed screw；17- piston guide rod；18 add
Press frame base；19- hydraulic operation bottom of cabinet seat；20- sensor conductor；21- increased pressure frame hole；22- piston guide rod hole；
23- hinge；24- door handle；25- conducting wire hole；26- operates cabinet door；27- organic glass hood door.
Specific embodiment
Invention is specifically described below according to attached drawing of the invention and specific implementation example.
It is as shown in Figure 1 a kind of full-automatic Point Load Strength Instrument front schematic view of fluid pressure type, including hydraulic operation cabinet 14, dress
There is the openable operation cabinet door 26 of 2 fans, hydraulic motor unit 1 is installed in hydraulic operation cabinet 14, top is equipped with telescopic work
Fill in guide rod 17；Pressure regulating valve device 2, motor control assembly 3 are installed in operation cabinet 14；The top of hydraulic operation cabinet 14 is equipped with pressurization
Frame base 18 and piston guide rod 17 across it set increased pressure frame 9 on increased pressure frame pedestal 18, and 9 top of increased pressure frame is equipped with
Pressure sensor 8, and be connected in upper ball end circular cone 6,9 lower part of increased pressure frame is socketed with sliding block 4, and lower ball is fixed on sliding block
Circular cone 5 is held, piston guide rod 17 is located at the bottom of sliding block 4, the displacement sensor 7 being connected with computer is equipped in the middle part of increased pressure frame 9,
Its shift end is placed on sliding block 4；Organic glass shield 13 carries out external connection, In using fixed screw 16 and increased pressure frame 9
13 bottom of machine glass protecting cover is provided with tilt tray 10, and is located on increased pressure frame pedestal 18, and organic glass shield 13 is pacified
Equipped with the 1 openable organic glass hood door 27 of fan.Here ball end circular cone refers to that the front end of circular cone is spherical surface.
Fig. 2 show a kind of full-automatic Point Load Strength Instrument side schematic view of fluid pressure type.It is equipped in hydraulic operation cabinet 14
To control hydraulic hydraulic motor unit 1, it is placed on operation cabinet pedestal 19, is installed on the operation panel 15 of operation cabinet 14
There are pressure regulating valve device 2 and motor control assembly 3；1 top of hydraulic motor unit is arranged piston guide rod 17 and passes through increased pressure frame bottom
Seat 18 and tilt tray 10, and the bottom of sliding block 4 is extended to, it can control the lifting of sliding block；The pallet 10 is placed in by steel support 11
On increased pressure frame pedestal 18；Organic glass shield 13 is connected by fixed screw 16 and increased pressure frame 9 and increased pressure frame pedestal 16
It connects；The sensor conductor 20 that the displacement sensor 7 and pressure sensor 8 being fixed on increased pressure frame 9 involve, passes through organic glass
On shield there are conducting wire hole 25 connect with external computer acquisition system, can real-time Transmission displacement and pressure testing data.
Fig. 3 is organic glass shield schematic diagram.It is equipped with tilt tray 10 inside the organic glass shield 13, opens above
There are 3 holes, may pass through increased pressure frame 9 and piston guide rod 17, be placed on increased pressure frame pedestal 18, and is fixed using steel support 11；
There are conducting wire holes 25 at the organic glass shield back side, convenient for involving displacement and pressure sensor conducting wire 20；Organic glass shield
13 are provided with the openable door 27 of 1 fan, and are closed by lock 12, prevent the rubble splashing in test from collapsing out.
When starting test, switch being powered on, starting motor, starting pressure regulation control valve device adjusts oil pressure size, utilizes
Hydraulic device promotes piston guide rod fast uplink, pushes sliding block and lower ball end circular cone to move up, goes upward to and upper ball end circular cone
Between when can be packed into the spacing of rock sample size, hydraulic stopping is made using pressure regulator valve, lower ball end circular cone also stops uplink therewith,
Then organic glass hood door is opened, loads onto rock sample, starts hydraulic, is made on lower ball end circular cone continues using compared with low rate
Row closes hydraulic stopping uplink when upper and lower ball end circular cone and rock sample come into full contact with, then set displacement sensor and
Pressure sensor is closed organic glass hood door and is fastened, then starts hydraulic and external computer acquisition system, want by specification
The rate of loading asked is tested and acquires test data.Hydraulic stopping test being closed after rock sample is broken, opens protection
Cover door clears up tray bottom rubble, and hydraulic device restores, and is ready for lower battery of tests.
The hydraulic electric motor pressurized control device that the present invention is arranged, using hydraulic pressing device, it can be achieved that continuous load, and
Pressing time can be controlled as needed, and loading more artificial than traditional jack is more stable, and rock sample stress is also uniform, improves
Test accuracy, and save manpower；Using displacement sensor, it can survey at any time and read loading point spacing and rock sample deflection, than
Traditional artificial tape measure improves precision；It can effectively prevent rock sample in loading process using organic glass shield
The fragment that bursts apart hurt sb.'s feelings, eliminate security risk, simultaneously because use transparent organic glass, test operation mistake can be monitored in real time
Journey；The tilt tray of setting, which can facilitate, collects rock fragment and clast, ensure that environmental sanitation；In addition hydraulic operation cabinet takes up an area face
Product is small, and entire hydraulic motor unit is placed in one, neat and artistic, and operation panel uses sloping desk, convenient for operation and reading.
Claims (8)
1. a kind of full-automatic Point Load Strength Instrument of fluid pressure type, it is characterised in that the full-automatic Point Load Strength Instrument of fluid pressure type includes
Hydraulic operation cabinet, the safety guard plate that hydraulic operation cabinet top is equipped with increased pressure frame and is located above increased pressure frame, institute
The hydraulic motor unit placed in hydraulic operation cabinet to loading is stated, is provided with above the hydraulic motor unit telescopic
Piston guide rod, the piston guide rod are connect with the sliding block being arranged in increased pressure frame, to drive sliding block to move up and down；
Pressure structure, the pressure structure include the lower ball end circular cone being mounted on sliding block, and are located on the circular cone of lower ball end
The upper ball end circular cone of square and corresponding setting, upper ball end circular cone are fixed on increased pressure frame, rock sample setting
Between lower ball end circular cone and upper ball end circular cone, ball end circular cone comes into full contact with rock sample up and down when test, for consolidating
Determine rock sample and carries out applied voltage test；
Pressure sensor, the pressure sensor and upper ball end circular cone are connected and fixed on increased pressure frame, by conducting wire with
External computer acquisition system connection, for measuring test loading pressure；
Displacement sensor, institute's displacement sensors are fixed on increased pressure frame, are connect by conducting wire with external computer acquisition system,
Rock sample displacement is read for surveying, sensor terminal is placed on sliding block when test.
2. a kind of full-automatic Point Load Strength Instrument of fluid pressure type as described in claim 1, which is characterized in that increased pressure frame includes
The increased pressure frame pedestal being set to above hydraulic operation cabinet, and the increased pressure frame rod piece positioned at increased pressure frame pedestal two sides, institute
The both ends for stating sliding block pass through the increased pressure frame rod piece of two sides, and can slide up and down along increased pressure frame rod piece.
3. a kind of full-automatic Point Load Strength Instrument of fluid pressure type as described in claim 1, which is characterized in that on increased pressure frame pedestal
The pallet being obliquely installed equipped with one, for collecting rock sample fragment.
4. a kind of full-automatic Point Load Strength Instrument of fluid pressure type as claimed in claim 3, which is characterized in that one end of the pallet
It is set on increased pressure frame pedestal, tray bottom is provided with steel support at the other end, so that the pallet is in 20 ~ 40 DEG C of inclination angles
It is set on increased pressure frame pedestal.
5. a kind of full-automatic Point Load Strength Instrument of fluid pressure type as described in claim 1, which is characterized in that the safety guard plate
It for totally enclosed type organic glass protective cover, is connected by fixed screw with increased pressure frame, in organic glass shield front
Switchable door is arranged using hinge and lock, convenient for test handling rock sample and cleaning rubble.
6. a kind of full-automatic Point Load Strength Instrument of fluid pressure type as described in claim 1, which is characterized in that the hydraulic operation cabinet
It is provided with station, operating table surface is tilted in 30 DEG C, and pressure regulator valve is arranged in operating table surface, can control hydraulic electric motor by regulating valve
Device loading size and rate of loading, to control moving up and down for piston guide rod.
7. a kind of full-automatic Point Load Strength Instrument of fluid pressure type as claimed in claim 6, which is characterized in that the station of operation cabinet
Motor control assembly is set on face, and motor control assembly is connect with hydraulic motor unit, for controlling the fortune of hydraulic motor unit
Row.
8. a kind of test method of the full-automatic Point Load Strength Instrument of fluid pressure type, it is characterised in that the test method includes following step
It is rapid:
Start pressure regulation control valve device and adjust oil pressure size, promotes piston guide rod fast uplink using hydraulic device, push sliding block
It moves up, goes upward to when can be packed into the spacing of rock sample size between the circular cone of upper ball end, using tune with lower ball end circular cone
Pressure valve makes hydraulic stopping, and lower ball end circular cone also stops uplink therewith；
Organic glass hood door is opened, rock sample is loaded between lower ball end circular cone and upper ball end circular cone, starts liquid
Pressure makes lower ball end circular cone continue low speed upstream, closes in hydraulic stopping when upper and lower ball end circular cone and rock sample come into full contact with
Row；
Displacement sensor and pressure sensor are set, organic glass hood door is closed and is fastened, is then started hydraulic and outer
Portion's computer acquisition system, is tested by the rate of loading of code requirement and acquires test data；
Hydraulic stopping test being closed after rock sample is broken, is opened hood door, is cleared up tray bottom rubble, hydraulic device is multiple
Original is ready for lower battery of tests.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910722177.5A CN110426288A (en) | 2019-08-06 | 2019-08-06 | A kind of full-automatic Point Load Strength Instrument of fluid pressure type and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910722177.5A CN110426288A (en) | 2019-08-06 | 2019-08-06 | A kind of full-automatic Point Load Strength Instrument of fluid pressure type and test method |
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| Publication Number | Publication Date |
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| CN110426288A true CN110426288A (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910722177.5A Pending CN110426288A (en) | 2019-08-06 | 2019-08-06 | A kind of full-automatic Point Load Strength Instrument of fluid pressure type and test method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110901141A (en) * | 2019-12-12 | 2020-03-24 | 常德鹏达机械加工有限公司 | Single-column correction press machine |
| CN112033838A (en) * | 2020-08-17 | 2020-12-04 | 山东大学 | Automatic testing device for point load of rock and soil mass and working method |
| CN112362482A (en) * | 2020-11-02 | 2021-02-12 | 山西银锋科技有限公司 | Rock point load test method |
| CN113340738A (en) * | 2021-05-24 | 2021-09-03 | 鲁西工业装备有限公司 | Full-automatic pressure test system and measurement method |
-
2019
- 2019-08-06 CN CN201910722177.5A patent/CN110426288A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110901141A (en) * | 2019-12-12 | 2020-03-24 | 常德鹏达机械加工有限公司 | Single-column correction press machine |
| CN112033838A (en) * | 2020-08-17 | 2020-12-04 | 山东大学 | Automatic testing device for point load of rock and soil mass and working method |
| CN112362482A (en) * | 2020-11-02 | 2021-02-12 | 山西银锋科技有限公司 | Rock point load test method |
| CN113340738A (en) * | 2021-05-24 | 2021-09-03 | 鲁西工业装备有限公司 | Full-automatic pressure test system and measurement method |
| CN113340738B (en) * | 2021-05-24 | 2024-01-26 | 鲁西工业装备有限公司 | Full-automatic pressure test system and measurement method |
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