CN202955067U - Testing device for soft-reduction hydraulic cylinder manifold blocks on sector sections of rolling mills - Google Patents
Testing device for soft-reduction hydraulic cylinder manifold blocks on sector sections of rolling mills Download PDFInfo
- Publication number
- CN202955067U CN202955067U CN 201220553130 CN201220553130U CN202955067U CN 202955067 U CN202955067 U CN 202955067U CN 201220553130 CN201220553130 CN 201220553130 CN 201220553130 U CN201220553130 U CN 201220553130U CN 202955067 U CN202955067 U CN 202955067U
- Authority
- CN
- China
- Prior art keywords
- valve
- oil
- control valve
- fuel tank
- tested
- 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
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses a testing device for soft-reduction hydraulic cylinder manifold blocks on sector sections of rolling mills. The testing device comprises an oil tank, a motor, a hydraulic pump, a proportional overflow valve, a one-way valve, a three-position four-way directional control valve, a two-position three-way directional control valve, an oil return flowmeter, a leakage flowmeter and a four-way quick coupling. The four-way quick coupling is connected with four pressure-testing couplings of the manifold blocks. The motor drives the hydraulic pump to provide oil pressure of the testing device, and the oil pressure of the testing device is adjusted by the proportional overflow valve. A system oil pressure is connected with the four-way quick coupling respectively through the three-position four-way directional control valve and the two-position three-way directional control valve so as to acquire the testing pressure of a to-be-tested hydraulic control one-way valve and the testing pressure of a to-be-tested overflow valve in the manifold blocks. The oil return flowmeter is connected with the proportional overflow valve and the oil tank, and the leakage flowmeter is connected with the to-be-tested overflow valve and the oil tank. By the testing device, performance test of the manifold blocks can be carried out conveniently, testing efficiency of the manifold blocks is improved, and equipment maintenance cost is reduced.
Description
Technical field
The utility model relates to the testing apparatus of the light hydraulic cylinder for reduction system integrated valve block of a kind of milling train fan-shaped section.
Background technique
Along with the raising day by day to the mill milling quality of product, when the pipe line steel of rolling high hardness, need the frequent light press function of using the milling train fan-shaped section, and the integrated valve block state quality on light hydraulic cylinder for reduction system to this function realize most important, the state of integrated valve block is mainly reflected in two aspects: one, the valve piece leaks the normal performance exceeded standard to this function and has a significant impact, and then affects the quality of pipe line steel product; Its two, on-the-spot have strict requirement to the safety valve setting pressure on integrated valve block, the excessive safety effect that do not have of setting, the too small drain charge in advance of setting, produce the negative effect similar to the system internal leakage.
Integrated valve block comprises Pilot operated check valve and relief valve, because the leakage situation to the oil hydraulic cylinder integrated valve block and minimum setting pressure of relief valve value lack effective judging means, therefore usually will change oil hydraulic cylinder and integrated valve block as the most frequently used one of the means of fixing a breakdown, greatly improve the maintenance cost of equipment.
The integrated valve block changed need to be overhauled and be tested, the rated flow of general integrated valve block relief valve is 120L/min, according to conventionally test, need to use the powerful hydraulic test system higher than the 120L/min rated flow, so improved the requirement to test system, general production scene can't meet the needs of integrated valve block test.The conventional maintenance of integrated valve block simultaneously and test need to be disintegrated integrated valve block, after repairing one by one, carry out a complete set of project testing, waste time and energy, and inefficiency.
Summary of the invention
Technical problem to be solved in the utility model is to provide the testing apparatus of the light hydraulic cylinder for reduction system integrated valve block of a kind of milling train fan-shaped section, utilize this testing apparatus can conveniently implement the testing property of integrated valve block, improve the integrated valve block testing efficiency, reduced plant maintenance and the cost of overhaul.
For solving the problems of the technologies described above, the testing apparatus of the light hydraulic cylinder for reduction system integrated valve block of the utility model milling train fan-shaped section comprises tested Pilot operated check valve, tested relief valve, fuel tank, motor, oil hydraulic pump, proportional pressure control valve, one-way valve, three position four-way directional control valve, two position three way directional control valve, the oil return flowmeter, leakage flow Ji He tetra-tunnel rapid pipe joints, described motor drives described oil hydraulic pump, described oil hydraulic pump input end connects described fuel tank, output terminal connects respectively proportional pressure control valve and is connected described three position four-way directional control valve first end through described one-way valve, the output terminal of described proportional pressure control valve connects described fuel tank through described oil return flowmeter, described three position four-way directional control valve the second end connects described fuel tank, the 3rd end and the 4th end are connected respectively the first via and second tunnel of described four tunnel rapid pipe joints, described two position three way directional control valve connects respectively described three position four-way directional control valve the 3rd end, the Third Road of fuel tank and four tunnel rapid pipe joints, described four tunnel rapid pipe joint De Di tetra-tunnels connect described fuel tank through described leakage flow meter, the first via of described four tunnel rapid pipe joints connects respectively described tested Pilot operated check valve input end and tested relief valve input end, described tested relief valve output terminal connects the hydraulic control input end of described four tunnel rapid pipe joint De Di tetra-roads and described tested Pilot operated check valve, the hydraulic control output terminal of described tested Pilot operated check valve connects the Third Road of described four tunnel rapid pipe joints, the output terminal of described tested Pilot operated check valve connects the second tunnel of described four tunnel rapid pipe joints.
Further, this device also comprises return oil filter, oil-suction oil filter and leakage oil purifier, described return oil filter is located between described oil return flowmeter and fuel tank, described oil-suction oil filter is located between described oil hydraulic pump and fuel tank, and described leakage oil purifier is located between described leakage flow meter and fuel tank.
Further, this device also comprises pressure meter, and described pressure meter is located at described hydraulic pressure delivery side of pump.
Because the testing apparatus of the light hydraulic cylinder for reduction system integrated valve block of the utility model milling train fan-shaped section has adopted technique scheme, be that this device is by fuel tank, motor, oil hydraulic pump, proportional pressure control valve, one-way valve, three position four-way directional control valve, two position three way directional control valve, the oil return flowmeter, leakage flow Ji He tetra-tunnel rapid pipe joints form, four tunnel rapid pipe joints connect four pressure measuring tie-ins of integrated valve block, motor-driven hydraulic pumps provides this device oil pressure and through the proportional pressure control valve adjustment, system oil pressure is connected respectively through three position four-way directional control valve and two position three way directional control valve the test pressure that four tunnel rapid pipe joints provide tested Pilot operated check valve and tested relief valve in integrated valve block, the score of oil return flowmeter and leakage flow does not connect between proportional pressure control valve and fuel tank and between tested relief valve and fuel tank.This testing apparatus can conveniently be implemented the testing property of integrated valve block, has improved the integrated valve block testing efficiency, has reduced plant maintenance and the cost of overhaul.
The accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is described in further detail:
The testing apparatus schematic diagram that Fig. 1 is the light hydraulic cylinder for reduction system integrated valve block of the utility model milling train fan-shaped section.
Embodiment
As shown in Figure 1, the testing apparatus of the light hydraulic cylinder for reduction system integrated valve block of the utility model milling train fan-shaped section comprises tested Pilot operated check valve 14, tested relief valve 13, fuel tank 16, motor 1, oil hydraulic pump 2, proportional pressure control valve 3, one-way valve 8, three position four-way directional control valve 9, two position three way directional control valve 11, oil return flowmeter 4, leakage flow meter 12He tetra-tunnel rapid pipe joints, described motor 1 drives described oil hydraulic pump 2, described oil hydraulic pump 2 input ends connect described fuel tank 16, output terminal connects respectively proportional pressure control valve 3 and is connected described three position four-way directional control valve 9 first ends 91 through described one-way valve 8, the output terminal of described proportional pressure control valve 3 connects described fuel tank 16 through described oil return flowmeter 4, described three position four-way directional control valve 9 second ends 92 connect described fuel tank 16, the 3rd end 93 and the 4th end 94 are connected respectively the first via 101 and second tunnel 102 of described four tunnel rapid pipe joints, described two position three way directional control valve 11 connects respectively described three position four-way directional control valve 9 the 3rd end 93, the Third Road 103 of fuel tank 16He tetra-tunnel rapid pipe joints, described four tunnel rapid pipe joint De Di tetra-tunnels 104 connect described fuel tank 16 through described leakage flow meter 12, the first via 101 of described four tunnel rapid pipe joints connects respectively described tested Pilot operated check valve 14 input ends and tested relief valve 13 input ends, described tested relief valve 13 output terminals connect the hydraulic control input end of described four tunnel rapid pipe joint De Di tetra-tunnels 104 and described tested Pilot operated check valve 14, the hydraulic control output terminal of described tested Pilot operated check valve 14 connects the Third Road 103 of described four tunnel rapid pipe joints, the output terminal of described tested Pilot operated check valve 14 connects the second tunnel 102 of described four tunnel rapid pipe joints.
Further, this device also comprises return oil filter 51, oil-suction oil filter 6 and leaks oil purifier 52, described return oil filter 51 is located between described oil return flowmeter 4 and fuel tank 16, described oil-suction oil filter 6 is located between described oil hydraulic pump 2 and fuel tank 16, and described leakage oil purifier 52 is located between described leakage flow meter 12 and fuel tank 16.Arranging of each oil purifier guaranteed that this installs clean the unimpeded of oil circuit that reach of each oil circuit, guarantees the normal operation of this device.
Further, this device also comprises pressure meter 7, and described pressure meter 7 is located at the output terminal of described oil hydraulic pump 2.But the delivery pressure of pressure meter Real-Time Monitoring oil hydraulic pump, further guarantee the safety of this device running.
This device can be surveyed the engaging pressure of tested relief valve, and then judges its actual setting pressure; Test the internal leakage of tested relief valve and tested Pilot operated check valve, according to the measured value size, judge that whether integrated valve block is normal; Detect the reliability of the forward and reverse unlatching of tested Pilot operated check valve.
Concrete hydraulic test can have four content measurements, specific as follows:
1, the reverse opening feature of Pilot operated check valve 14: at first three position four-way directional control valve 9 left sides obtain electric, two position three way directional control valve 11 dead electricity, along with the rising of the second tunnel 102 mouth pressures, tested Pilot operated check valve 14 is opened, illustrate oppositely open normal.Otherwise undesired.
2, the cracking pressure of tested relief valve 13 test: at first three position four-way directional control valve 9 left sides obtain electric, two position three way directional control valve 11 electric, after 103 mouthfuls of decompressions of the Third Road of tested Pilot operated check valve 14, close, hydraulic oil is through tested relief valve 13 oil sump tanks; It is 0 state that proportional pressure control valve 3 Output pressures are adjusted to, oil hydraulic pump 2 work, slowly regulate the pressure of proportional pressure control valve 3, the pressure of system is raise gradually, until tested relief valve 13 starts overflow, pressure now of record, be cracking pressure, and the logic and intelligent by software in control system judges whether cracking pressure meets light press down system actual set pressure.
3, the internal leakage of tested relief valve 13, tested Pilot operated check valve 14 test: under above-mentioned operating mode, tested Pilot operated check valve 14 is closed, test the internal leakage of tested relief valve 13, tested Pilot operated check valve 14, disconnect the second tunnel 102 of rapid pipe joint, estimate whether leakage of oil of this second tunnel 102, qualitatively judge the internal leakage of tested Pilot operated check valve 14; Regulate the pressure of proportional pressure control valve 3, measure internal leakages at the output terminal of tested relief valve 13 by leakage flow meter 12 after making system pressure set up 75%, 30 second to tested relief valve 13 actual settings.
4, the forward opening feature of Pilot operated check valve 14: at first three position four-way directional control valve 9 right sides obtain electric, two position three way directional control valve 11 obtains electric, now the second tunnel 102 mouth pressures raise, 103 mouthfuls of decompressions of Third Road, tested Pilot operated check valve 14 is opened after overcoming its minimum forward cracking pressure, illustrate that the forward unlatching is normal, otherwise undesired.
This installs each parts can be integrated in a hydraulic pressure test dolly, and not only conveniently moving, and floor space only has the 1/20-1/10 of routine test platform, and the load energy consumption only has 1/10 of routine test platform, than the routine test platform, has certain superiority.But the control system integrated intelligent testing software of this device, by touch LCD screen, not only can quick, intelligent detection and show complete test curve, and can be stored data, be convenient to effectively review fast.Adopt the hydraulic pressure test dolly of this device can implement in production scene the integrated testability of integrated valve block, obtain selectively crucial test data, the fault of tested relief valve or tested Pilot operated check valve on quick judgement integrated valve block, significantly improve testing efficiency, effectively reduced plant maintenance and the cost of overhaul.
Claims (3)
1. the testing apparatus of the light hydraulic cylinder for reduction system integrated valve block of milling train fan-shaped section, comprise tested Pilot operated check valve and tested relief valve, it is characterized in that: also comprise fuel tank, motor, oil hydraulic pump, proportional pressure control valve, one-way valve, three position four-way directional control valve, two position three way directional control valve, the oil return flowmeter, leakage flow Ji He tetra-tunnel rapid pipe joints, described motor drives described oil hydraulic pump, described oil hydraulic pump input end connects described fuel tank, output terminal connects respectively proportional pressure control valve and is connected described three position four-way directional control valve first end through described one-way valve, the output terminal of described proportional pressure control valve connects described fuel tank through described oil return flowmeter, described three position four-way directional control valve the second end connects described fuel tank, the 3rd end and the 4th end are connected respectively the first via and second tunnel of described four tunnel rapid pipe joints, described two position three way directional control valve connects respectively described three position four-way directional control valve the 3rd end, the Third Road of fuel tank and four tunnel rapid pipe joints, described four tunnel rapid pipe joint De Di tetra-tunnels connect described fuel tank through described leakage flow meter, the first via of described four tunnel rapid pipe joints connects respectively described tested Pilot operated check valve input end and tested relief valve input end, described tested relief valve output terminal connects the hydraulic control input end of described four tunnel rapid pipe joint De Di tetra-roads and described tested Pilot operated check valve, the hydraulic control output terminal of described tested Pilot operated check valve connects the Third Road of described four tunnel rapid pipe joints, the output terminal of described tested Pilot operated check valve connects the second tunnel of described four tunnel rapid pipe joints.
2. the testing apparatus of the light hydraulic cylinder for reduction system integrated valve block of milling train fan-shaped section according to claim 1, it is characterized in that: this device also comprises return oil filter, oil-suction oil filter and leakage oil purifier, described return oil filter is located between described oil return flowmeter and fuel tank, described oil-suction oil filter is located between described oil hydraulic pump and fuel tank, and described leakage oil purifier is located between described leakage flow meter and fuel tank.
3. the testing apparatus of the light hydraulic cylinder for reduction system integrated valve block of milling train fan-shaped section according to claim 1, it is characterized in that: this device also comprises pressure meter, described pressure meter is located at described hydraulic pressure delivery side of pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220553130 CN202955067U (en) | 2012-10-26 | 2012-10-26 | Testing device for soft-reduction hydraulic cylinder manifold blocks on sector sections of rolling mills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220553130 CN202955067U (en) | 2012-10-26 | 2012-10-26 | Testing device for soft-reduction hydraulic cylinder manifold blocks on sector sections of rolling mills |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202955067U true CN202955067U (en) | 2013-05-29 |
Family
ID=48460643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220553130 Expired - Fee Related CN202955067U (en) | 2012-10-26 | 2012-10-26 | Testing device for soft-reduction hydraulic cylinder manifold blocks on sector sections of rolling mills |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202955067U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019083A (en) * | 2014-06-23 | 2014-09-03 | 镇江杭川机械制造有限公司 | Hydraulic testing system |
| CN107991008A (en) * | 2017-12-29 | 2018-05-04 | 恒天九五重工有限公司 | Power test valve block, test device and test method are used in a kind of rotary drilling rig power match test |
| CN108691852A (en) * | 2017-04-04 | 2018-10-23 | 上海梅山钢铁股份有限公司 | Slighter compress block calibration system and scaling method |
| CN111043105A (en) * | 2019-12-13 | 2020-04-21 | 成立航空技术有限公司 | A high-power hydraulic comprehensive test bench and its test method |
-
2012
- 2012-10-26 CN CN 201220553130 patent/CN202955067U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019083A (en) * | 2014-06-23 | 2014-09-03 | 镇江杭川机械制造有限公司 | Hydraulic testing system |
| CN108691852A (en) * | 2017-04-04 | 2018-10-23 | 上海梅山钢铁股份有限公司 | Slighter compress block calibration system and scaling method |
| CN107991008A (en) * | 2017-12-29 | 2018-05-04 | 恒天九五重工有限公司 | Power test valve block, test device and test method are used in a kind of rotary drilling rig power match test |
| CN107991008B (en) * | 2017-12-29 | 2024-03-19 | 恒天九五重工有限公司 | Power test valve block, test device and test method for power matching test of rotary drilling rig |
| CN111043105A (en) * | 2019-12-13 | 2020-04-21 | 成立航空技术有限公司 | A high-power hydraulic comprehensive test bench and its test method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202101830U (en) | Mobile hydraulic oil cylinder leak tester | |
| CN202955067U (en) | Testing device for soft-reduction hydraulic cylinder manifold blocks on sector sections of rolling mills | |
| CN110608952B (en) | Hydraulic test system and test method applied to large-diameter conveying pipeline | |
| CN110529442B (en) | Hydraulic system matched with piston mechanical fatigue test bench | |
| CN103352900B (en) | A kind of heavy mining truck hydraulic jack/Experimental Rig of Hydraulic Valve | |
| CN202673641U (en) | Fully mechanized coal face emulsified liquid remote monitoring and control system | |
| CN101762426B (en) | Hydraulic hard tube experimental table and experimental method | |
| CN105863597A (en) | High pressure manifold device for carbon dioxide dry fracturing | |
| CN103775326A (en) | Power recovery test-bed for mechanical-compensation type hydraulic pump | |
| CN104165739B (en) | Method for testing pressure by adoption of vertical and automatic heat collector flow channel pressure test machine | |
| CN202301289U (en) | High-low pressure combined online circulating washing and pressure testing device for hydraulic system | |
| CN209311021U (en) | A new hydraulic oil pump pressure flow detection device | |
| CN214366967U (en) | Integrated hydraulic valve block for life test of aviation actuator | |
| CN104280296A (en) | Steel wire rope detection platform with speed governing and loading functions | |
| CN203717315U (en) | Mechanical compensation-type hydraulic pump power recovery testboard | |
| CN209557385U (en) | Hydraulic pump test platform | |
| CN201016837Y (en) | Direction machine inner leakage detecting arrangement for automobile hydraulic direction machine detecting bench | |
| CN203532422U (en) | Oil filtering device for hydraulic station | |
| CN201397330Y (en) | Hydraulic oil energy-saving test bench | |
| CN204286763U (en) | A kind of analog detection safety valve is performance test bed | |
| CN204985168U (en) | Detection apparatus for hydraulic manifold block is gently pushed down to conticaster | |
| CN204064591U (en) | Collector runner vertical automatic pressure test machine | |
| CN201555771U (en) | Test stand for hydraulic hard tube | |
| CN205778795U (en) | Carbon dioxide dry method pressure break high pressure pipe joint | |
| CN202770624U (en) | Pressure resistance test device |
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: 20130529 Termination date: 20151026 |
|
| EXPY | Termination of patent right or utility model |