CN110398422A - A kind of rapid pressure test machine - Google Patents
A kind of rapid pressure test machine Download PDFInfo
- Publication number
- CN110398422A CN110398422A CN201910793242.3A CN201910793242A CN110398422A CN 110398422 A CN110398422 A CN 110398422A CN 201910793242 A CN201910793242 A CN 201910793242A CN 110398422 A CN110398422 A CN 110398422A
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- China
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- positioning column
- column
- oil
- fuel feed
- test machine
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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.)
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Links
- 238000012360 testing method Methods 0.000 title claims abstract description 77
- 241000009298 Trigla lyra Species 0.000 claims abstract description 18
- 230000003068 static effect Effects 0.000 claims abstract description 6
- 239000000446 fuel Substances 0.000 claims description 27
- 238000013101 initial test Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 51
- 238000010586 diagram Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- G01N3/02—Details
-
- 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
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- 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
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
- G01N2203/0087—Resistance to crushing
Abstract
The present invention relates to pressure test device fields, more particularly to a kind of rapid pressure test machine, including rack, rack is equipped with static pressure block and dynamic pressure block, oil cylinder is connected on dynamic pressure block, the oil cylinder is two-way cylinder, oil circuit control piper is connected on two input terminals of oil cylinder, the input terminal of oil circuit control piper is connected with oil pump, the servo motor for adjusting pump speed is connected on oil pump, present invention has an advantage that realizing that pump speed is adjustable using servo motor, in initial test phase, the rapid increase of cylinder piston rod can be achieved, in the follow-on test stage, low all loop controls can be achieved, it is high with control precision, output is stablized, the advantages of low noise.
Description
Technical field
The present invention relates to pressure test device field more particularly to a kind of rapid pressure test machines.
Background technique
In architectural engineering, young concrete need to be tested for the property, way is a collection of predetermined size of casting
Square concrete test block extrudes to these concrete test blocks by pressure testing machine, straight to cause test block broken, needed for obtaining
Parameter.
Existing pressure testing machine generally includes rack, and static pressure block and dynamic pressure block, dynamic pressure block and oil cylinder are arranged in rack
It is connected, oil cylinder is connected to by oil circuit control piper with oil pump, provides stable turn for oil-feed pump by connection motor on oil pump
Speed；Since during the test, dynamic pressure block need to make different speed and carry out top, for this purpose, needing to be arranged in oil circuit control piper
One regulating valve (flow valve), the oil mass into oil cylinder is controlled by the aperture of regulating valve, to reach the top of control oil cylinder
Into speed purpose, but there is deficiencies for this control mode, as shown in Figure 1, to control oil cylinder move speed using regulating valve
, as can be seen from the figure there is fluctuation in the test features in pressure stabilizing stage in test block pressure test figure, the stability of pressure test compared with
It is low, thus lower measuring accuracy；Secondly, dynamic pressure block needs continuous rise and fall, regulating valve control in follow-on test
Mode, which copes with the case where continuous rise and fall, will appear and control unstable phenomenon, and rise and fall speed is slower, causes to test
Efficiency, precision is difficult to improve.
Summary of the invention
The purpose of the present invention is to provide a kind of rapid pressure test machines, and the pressure for improving test block surveys measuring accuracy and speed
Degree.
To achieve the goals above, technical scheme is as follows:
A kind of rapid pressure test machine, including rack, rack are equipped with static pressure block and dynamic pressure block, are connected with oil cylinder on dynamic pressure block, institute
Stating oil cylinder is two-way cylinder, is connected with oil circuit control piper on two input terminals of oil cylinder, the input terminal of oil circuit control piper is connected with
Oil pump is connected with the servo motor for adjusting pump speed on oil pump.
Further, the input terminal of the oil cylinder includes rodless cavity fuel feed hole and rod chamber fuel feed hole, oil circuit control piper
Including filter and solenoid directional control valve, the input terminal of the output end of the oil pump and filter is connected, the output end of filter with
The input terminal of solenoid directional control valve connects, two output ends of solenoid directional control valve respectively with rodless cavity fuel feed hole, rod chamber fuel feed hole
Connection；Overflow valve one, solenoid directional control valve and rodless cavity fuel feed hole are connected on pipeline between the solenoid directional control valve and filter
Between pipeline on be connected with overflow valve two.
Further, the oil cylinder on offer limited mouth, limited mouth is located at rodless cavity fuel feed hole and rod chamber oil inlet
Between hole, the oil circuit control piper includes check valve, and the input terminal of check valve is connect with limited mouth, rod chamber fuel feed hole and electricity
The output end of pipeline and check valve between magnet valve output end connects.
Further, throttle valve is connected on the pipeline between the solenoid directional control valve and rod chamber fuel feed hole.
Further, the rack includes top plate, column and bottom plate, and the both ends of the column are welded with bottom plate, top plate respectively
Connect fixation.
Further, several jacks are offered on the dynamic pressure block, positioning column, several positioning is inserted in jack
Column is respectively positioned on using dynamic pressure block center as on the same circumference in the center of circle.
Further, the positioning column includes positioning column one, positioning column two, positioning column three and positioning column four, the positioning
The line of column one and positioning column two is parallel to the line of positioning column three and positioning column four, between positioning column one and positioning column two away from
From greater than the distance between positioning column three and positioning column four.
Further, the arc ring different including several internal diameters, offers multiple mounting holes on arc ring, mounting hole with
The positioning column corresponds, and positioning column includes column ontology, and the top of column ontology is equipped with pillar, and the outer diameter of column ontology is greater than installation
The bore in hole, the outer diameter of pillar are less than the bore of mounting hole.
Advantages of the present invention:
1. using servo motor realize pump speed it is adjustable, in initial test phase, it can be achieved that cylinder piston rod it is quick on
It rises, in the follow-on test stage, it can be achieved that the advantages of low week loop control, has control precision high, and output is stablized, low noise；
2. can realize that dynamic pressure block dropping distance is accurately adjustable after test block is broken by servo motor, dynamic pressure block is enabled to drop to
The distance of a test block can only be filled in, and in the prior art, it is unstable due to regulating valve control, excessive descent is needed, excessively
Decline causes subsequent rising to take excessive time again, compared with the existing technology, using the scheme of Serve Motor Control oil pump
Energy consumption is reduced, and improves efficiency；
3. the quick adjusting of dynamic pressure block height may be implemented using two-way cylinder；
4. the strain at frame is synchronized, so that the test data of test block is more smart using the whole frame of welding fabrication
Really；
5. quickly being positioned using test block positioning column and arc ring to various sizes of test block, the operability of equipment is improved
And measurement error caused by avoiding because of test block misalignment.
Detailed description of the invention
Fig. 1 is the test block pressure test schematic diagram for controlling oil cylinder move speed using regulating valve in the prior art；
Fig. 2 is the organigram in the embodiment of the present invention；
Fig. 3 is the schematic cross-sectional view of Fig. 2；
Fig. 4 is the connection schematic diagram of oil circuit control piper in the embodiment of the present invention；
Connection schematic diagram of the Fig. 5 between dynamic pressure of embodiment of the present invention block and positioning column, arc ring；
Fig. 6 is the organigram of positioning column；
Fig. 7 is when only installing positioning column, and test block is put into status diagram when dynamic pressure block；
When Fig. 8 is installation arc ring, test block is put into status diagram when dynamic pressure block；
Fig. 9 is the pressure test schematic diagram using test block after the embodiment of the present invention；
Label declaration
Rack 1, top plate 2, bottom plate 3, static pressure block 4, dynamic pressure block 5, oil cylinder 6, oil pump 7, servo motor 8, rodless cavity fuel feed hole 9 have
Rod cavity fuel feed hole 10, filter 11, solenoid directional control valve 12, throttle valve 13, limited mouth 14, check valve 15, overflow valve 1, jack
17, positioning column 18, arc ring 19, mounting hole 20, column ontology 21, pillar 22, column 23, overflow valve 2 24, positioning column 1, calmly
Position column 2 26, positioning column 3 27, positioning column 4 28.
Specific embodiment
Present invention is further described in detail with reference to embodiments.
The present embodiment proposes a kind of rapid pressure test machine, and as shown in Fig. 2 to 6, including rack 1, rack 1 are equipped with static pressure
Block 4 and dynamic pressure block 5 are connected with oil cylinder 6 on dynamic pressure block 5, and the oil cylinder 6 is two-way cylinder 6, are connected on two input terminals of oil cylinder 6
Oil circuit control piper, the input terminal of oil circuit control piper are connected with oil pump 7, and the servo motor for adjusting 7 revolving speed of oil pump is connected on oil pump 7
8。
The input terminal of the present embodiment oil cylinder 6 includes rodless cavity fuel feed hole 9 and rod chamber fuel feed hole 10, oil circuit control piper packet
Include filter 11 and solenoid directional control valve 12, the output end of the oil pump 7 is connect with the input terminal of filter 11, filter 11 it is defeated
Outlet is connect with the input terminal of solenoid directional control valve 12, two output ends of solenoid directional control valve 12 respectively with rodless cavity fuel feed hole 9, have
Rod cavity fuel feed hole 10 connects；It is connected with overflow valve 1 on pipeline between the solenoid directional control valve 12 and filter 11, electromagnetism changes
Overflow valve 2 24 is connected on the pipeline between valve 12 and rodless cavity fuel feed hole 9.Servo motor 8 is controlled according to the setting of driver
Hydraulic oil push-in oil cylinder 6 is carried out the movement of piston rod by the rotation of 7 speed change of oil pump, oil pump 7, and wherein overflow valve 1 is whole for limiting
The pressure of a oil circuit control piper, overflow valve 2 24 are used to limit the pressure in rod chamber.
Offer limited mouth 14 on oil cylinder 6, limited mouth 14 be located at rodless cavity fuel feed hole 9 and rod chamber fuel feed hole 10 it
Between, oil circuit control piper includes check valve 15, and the input terminal of check valve 15 is connect with limited mouth 14, rod chamber fuel feed hole 10 and electricity
Pipeline between magnet valve output end is connect with the output end of check valve 15, and limited mouth 14 and check valve 15 are for controlling piston rod
Upper limit position, the design of check valve 15 is so that oil can only come out from limited mouth 14, and cannot be back to limited mouth 14.Further
, it is connected with throttle valve 13 on the pipeline between the solenoid directional control valve 12 and rod chamber fuel feed hole 10, is loaded to test block
In the process, hydraulic oil is slowly revealed by throttle valve 13, to guarantee stable loading velocity and negative sense control, so that oil pump 7 is right
The control of oil cylinder 6 is more stable, accurate.
There are three types of working conditions to oil cylinder 6 for the present embodiment oil pump 7: 1. rapid increase states: solenoid directional control valve 12 is obstructed
Electricity, 8 control oil pump 7 of servo motor are rotated with maximum speed, hydraulic oil are inputted in rodless cavity, so that piston rapid increase；2.
Stress state: the YV2 of solenoid directional control valve 12 is powered, and when stress state by the way of low Zhou Xunhuan, i.e., adds when to test block
When pressure, hydraulic oil, which enters in rodless cavity, to pressurize, when that need to take out or test block is added, due to the control of servo motor 8, piston
Bar can accurately decline certain distance, so that next test block, which can be put into just in test point, carries out subsequent cycle, such side
Formula avoids the waste of time caused by piston rod excessive descent, improves testing efficiency and measuring accuracy；3. pressure release state: electricity
The YV1 of magnetic reversal valve 12 is powered, and piston rod is with maximum speed return.
Rack 1 includes top plate 2, column 23 and bottom plate 3, in the prior art, between top plate 2, bottom plate 3 and column 23 usually
It is bolted, such as the patent of Patent No. 201520079519.3 is exactly to be designed in this way, such design exists
Following defect: when pressure testing machine squeezes test block, bolt is since long-term stress can be deformed, in deformation process
In, two sides bolt finally makes test result generation deviation due to deforming the inconsistent extruding force imbalance caused to test block.For
The defect is solved, bottom plate 3 and the column 23 of the application is welded and fixed, and top plate 2 is equally welded and fixed with column 23, by welding,
So that rack 1 becomes a general frame, the strain at frame is synchronized, so that the test data of test block is more accurate.
By the rack 1 of the stability contorting of servo motor 8 and monoblock type to the balance of stress, using the present embodiment side
The pressure testing machine of case is to the pressure test of test block as shown in figure 9, it can be seen in figure 9 that in the pressure stabilizing stage, curve is relative to figure
1 is smooth very much.
In test, test block need to be placed on the center of dynamic pressure block 5, be balanced with guaranteeing that test block is pressurized, to guarantee this purpose,
Several jacks 17 are offered on the dynamic pressure block 5 of the present embodiment, and positioning column 18, several positioning columns 18 are inserted in jack 17
It is respectively positioned on using 5 center of dynamic pressure block as on the same circumference in the center of circle, positioning column 18 is for positioning test block, so that in test block
The heart can be directed at the center of dynamic pressure block 5, guarantee the accuracy of test.In the present embodiment, positioning column 18 includes positioning column 1, determines
Position column 2 26, positioning column 3 27 and positioning column 4 28, as shown in fig. 7, the line of positioning column 1 and positioning column 2 26 is parallel to
The line of positioning column 3 27 and positioning column 4 28, the distance between positioning column 1 and positioning column 2 26 are greater than 3 27 He of positioning column
The distance between positioning column 4 28, the distance between positioning column 1 and positioning column 2 26 have the side length of test block to determine.Such as
When actual test, reference block is generally square, and size is generally 200*200mm or 150*150mm or 100*100mm, institute
The distance between positioning column 1 and positioning column 2 26 can be designed as 200mm in manufacturing equipment, when needing to test 150mm
Or 100mm side length test block when, the present embodiment further includes the different arc ring 19 of multiple internal diameters, is offered on arc ring 19 multiple
Mounting hole 20, mounting hole 20 is corresponding with the positioning column 1, and positioning column 18 includes column ontology 21, and the top of column ontology 21 is set
There is pillar 22, the outer diameter of column ontology 21 is greater than the bore of mounting hole 20, and the outer diameter of pillar 22 is less than the bore of mounting hole 20, test
When, according to test block size, suitable arc ring 19 is inserted on positioning column, arc ring 19 is designed as one of the circumcircle of test block
Point, as shown in figure 8, passing through the design of arc ring 19, to position various sizes of test block.In the actual construction process, it also has
Some nonstandard test blocks, such as cylindrical type test block, since several positioning columns are respectively positioned on using 5 center of dynamic pressure block as the same of the center of circle
On circumference, so the arc ring 19 using corresponding size can also accomplish the positioning to this kind of nonstandard test block.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (8)
1. a kind of rapid pressure test machine, including rack, rack is equipped with static pressure block and dynamic pressure block, is connected with oil cylinder on dynamic pressure block,
It is characterized by: the oil cylinder is two-way cylinder, oil circuit control piper, oil circuit control piper are connected on two input terminals of oil cylinder
Input terminal be connected with oil pump, be connected on oil pump adjust pump speed servo motor.
2. a kind of rapid pressure test machine as described in claim 1, it is characterised in that: the input terminal of the oil cylinder includes no bar
Chamber fuel feed hole and rod chamber fuel feed hole, oil circuit control piper include filter and solenoid directional control valve, the output end of the oil pump with
The input terminal of filter connects, and the output end of filter and the input terminal of solenoid directional control valve connect, and two of solenoid directional control valve are defeated
Outlet is connect with rodless cavity fuel feed hole, rod chamber fuel feed hole respectively；Connect on pipeline between the solenoid directional control valve and filter
There is overflow valve one, overflow valve two is connected on the pipeline between solenoid directional control valve and rodless cavity fuel feed hole.
3. a kind of rapid pressure test machine as claimed in claim 2, it is characterised in that: offer limit on the oil cylinder
Mouthful, for limited mouth between rodless cavity fuel feed hole and rod chamber fuel feed hole, the oil circuit control piper includes check valve, check valve
Input terminal connect with limited mouth, the output end of pipeline and check valve between rod chamber fuel feed hole and solenoid valve output end connects
It connects.
4. a kind of rapid pressure test machine as claimed in claim 2, it is characterised in that: the solenoid directional control valve and rod chamber into
Throttle valve is connected on pipeline between oilhole.
5. a kind of rapid pressure test machine as described in claim 1, it is characterised in that: the rack include top plate, column and
Bottom plate, the both ends of the column are welded and fixed with bottom plate, top plate respectively.
6. a kind of rapid pressure test machine as described in claim 1, it is characterised in that: offer several on the dynamic pressure block
Jack is inserted with positioning column in jack, and several positioning columns are respectively positioned on using dynamic pressure block center as on the same circumference in the center of circle.
7. a kind of rapid pressure test machine as claimed in claim 6, it is characterised in that: the positioning column include positioning column one,
The line of positioning column two, positioning column three and positioning column four, the positioning column one and positioning column two is parallel to positioning column three and positioning
The line of column four, the distance between positioning column one and positioning column two are greater than the distance between positioning column three and positioning column four.
8. a kind of rapid pressure test machine as claimed in claims 6 or 7, it is characterised in that: different including several internal diameters
Arc ring offers multiple mounting holes on arc ring, and mounting hole and the positioning column correspond, and positioning column includes column ontology,
The top of column ontology is equipped with pillar, and the outer diameter of column ontology is greater than the bore of mounting hole, and the outer diameter of pillar is less than the bore of mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910793242.3A CN110398422A (en) | 2019-08-27 | 2019-08-27 | A kind of rapid pressure test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910793242.3A CN110398422A (en) | 2019-08-27 | 2019-08-27 | A kind of rapid pressure test machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110398422A true CN110398422A (en) | 2019-11-01 |
Family
ID=68329290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910793242.3A Pending CN110398422A (en) | 2019-08-27 | 2019-08-27 | A kind of rapid pressure test machine |
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| Country | Link |
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| CN (1) | CN110398422A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323967A (en) * | 2020-10-12 | 2022-04-12 | 中国石油天然气股份有限公司 | Cement stone mechanical parameter measuring system and measuring method |
| WO2022101605A1 (en) * | 2020-11-10 | 2022-05-19 | Verderg Pipe Technology Limited | A pipe testing apparatus and method |
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| CN1790020A (en) * | 2005-12-12 | 2006-06-21 | 成亚军 | Hydraulic loading system of triaxial device for soil test |
| US20120048029A1 (en) * | 2009-05-22 | 2012-03-01 | Kokusai Keisokuki Kabushiki Kaisha | Hydraulic system and universal testing machine |
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| WO2022101605A1 (en) * | 2020-11-10 | 2022-05-19 | Verderg Pipe Technology Limited | A pipe testing apparatus and method |
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