CN204900413U - Hydraulic cylinder durability test system - Google Patents
Hydraulic cylinder durability test system Download PDFInfo
- Publication number
- CN204900413U CN204900413U CN201520541479.XU CN201520541479U CN204900413U CN 204900413 U CN204900413 U CN 204900413U CN 201520541479 U CN201520541479 U CN 201520541479U CN 204900413 U CN204900413 U CN 204900413U
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- Prior art keywords
- hydraulic cylinder
- power source
- load
- oil
- hydraulic
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- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 230000009471 action Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 239000000945 filler Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000004146 energy storage Methods 0.000 abstract 2
- 230000002349 favourable effect Effects 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 62
- 230000001276 controlling effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
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- 239000003245 coal Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
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- 238000001514 detection method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000007764 o/w emulsion Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000007762 w/o emulsion Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a test system, its technical scheme main points are hydraulic cylinder durability test system, including load jar and hydraulic power source, the hydraulic power source is connected the hydraulic cylinder, the load is connected hydraulic cylinder rodless chamber, still includes the load power source, the load power source is connected with the load jar, still be equipped with the adjusting device who controls the hydraulic cylinder action between hydraulic power source and the hydraulic cylinder, through adopting above-mentioned technical scheme, use the load power source that comprises subassembly such as oil pump and energy storage ware to provide invariable load pressure for the load jar, be favorable to providing great load pressure, the energy storage ware can keep the stationarity of pressure, whole hydraulic cylinder durability test system constitutes simply, through directly adjusting the output power of electric liquid switching-over valve and speed governing ball valve control hydraulic power source, has higher stability, the load jar interacts with the hydraulic cylinder, reciprocating motion is favorable to reducing energy loss.
Description
Technical field
The utility model relates to a kind of test system, and more particularly, it relates to a kind of test system for hydraulic cylinder durability.
Background technique
Oil cylinder can be divided into oil hydraulic cylinder and hydraulic cylinder, and both Environmental Conditions is different, and oil hydraulic cylinder is generally used in the less place of demand Media Ratio, is exactly our modal hydraulic jack.It is many that hydraulic cylinder is mainly used for large-tonnage press class, and this occasion is too large due to equipment, can cause larger waste with hydraulic oil.But all with water, neither have oil-in-water emulsion and water-in-oil emulsion etc. with water, water also has a benefit: fire-retardant, at the occasion particularly suitable that some are inflammable and explosive, or useful water glycol, little with pure water, mainly seals bad and easy corrosion.
Hydraulic cylinder is executive component conventional in pressure system, because it frequently stretches in real work, impact comparatively large in transfer process, easily occur revealing, the reliability of hydraulic cylinder is related to the reliability of whole pressure system, is therefore necessary very much to carry out endurance test to it.
In the market application number be 201320493686.3 patent document disclose a kind of testing installation for test fluid cylinder pressure seal durability, this testing installation comprises tested oil hydraulic cylinder, for the driver element and the pressure oil liquid feeding unit that drive the piston rod of tested oil hydraulic cylinder to do linear reciprocating motion, the first ring connected in star for laying piston seal and the second annular groove for laying piston rod seal component is provided with in tested oil hydraulic cylinder, wherein, pressure oil liquid feeding unit comprises pressurized cylinder, fuel tank is connected with fuel tank by selector valve with the active chamber of selector valve pressurized cylinder, the filler opening of the hyperbaric chamber of pressurized cylinder is connected with fuel tank, the oil outlet of the hyperbaric chamber of pressurized cylinder is connected with first ring connected in star and/or the second annular groove.Complicated at hydraulic cylinder detection experiment device structure of the present utility model, test comparatively loaded down with trivial details, the technical program improves the pressure of fluid by pressurized cylinder, needs regular accumulation of energy repeatedly,, there is the deficiency needing to improve in the test speed delayed and working efficiency.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of hydraulic cylinder durability testing system, and this system architecture is simple, easy to detect, and has higher detection stability.
For achieving the above object, the utility model provides following technological scheme: a kind of hydraulic cylinder durability testing system, comprise load cylinder and hydraulic pressure power source, described hydraulic pressure power source connects hydraulic cylinder, described load connects hydraulic cylinder rodless cavity, also comprise load power source, described load power source is connected with load cylinder, is also provided with the controlling device controlling hydraulic cylinder action between described hydraulic pressure power source and hydraulic cylinder.
The utility model is set to further: described load power source comprises oil pump, Oil pump electrical machinery, oil cylinder, accumulator and pressure relay, described Oil pump electrical machinery drives oil pump, oil pump filler opening connects oil cylinder, described oil pump oil outlet connects load cylinder rod chamber, is also connected with accumulator and pressure relay between described load cylinder and oil pump.
The utility model is set to further: be connected with filter between described oil pump filler opening and oil cylinder.
The utility model is set to further: described load power source also comprises the first relief valve, and described first relief valve filler opening connects oil cylinder, and the first relief valve oil outlet connects oil pump oil outlet.
The utility model is set to further: be provided with one-way valve between described oil pump oil outlet and relief valve oil outlet.
The utility model is set to further: be also provided with adjustable restrictive valve and thermometer between described accumulator and oil pump oil outlet.
The utility model is set to further: described controlling device comprises electro-hydraulic reversing valve and coupled two speed governing ball valves.
The utility model is set to further: described hydraulic pressure power source comprises water pump, pump motor and water vat, and described pump motor drives water pump, and described pump intake connects water vat, and pump outlet connects controlling device.
The utility model is set to further: described hydraulic pressure power source also comprises the second relief valve, and described first relief valve water intake connects water vat, and the first relief valve water outlet connects pump outlet.
The utility model is set to further: described pump outlet is also provided with pressure switch.
By adopting technique scheme, the load power source be made up of the assembly such as oil pump and accumulator is used to provide constant induced pressure to load cylinder, be conducive to provide larger induced pressure, accumulator can keep the stationarity of pressure, reduce workflow, improve test speed and working efficiency, whole hydraulic cylinder durability testing system forms simple, by the outputting power directly regulating electro-hydraulic reversing valve and speed governing ball valve to control hydraulic pressure power source, there is higher stability, load cylinder and hydraulic cylinder interact, move back and forth, be conducive to reducing energy loss.
Accompanying drawing explanation
Fig. 1 is the systematic schematic diagram of a kind of hydraulic cylinder durability testing system of the utility model embodiment;
Fig. 2 is the system principle sketch of a kind of hydraulic cylinder durability testing system of the utility model embodiment.
Reference character: 1, hydraulic cylinder; 2, load cylinder; 3, load power source; 4, hydraulic pressure power source; 5, controlling device; 6, oil cylinder; 7, filter; 8, oil pump; 9, Oil pump electrical machinery; 10, the first relief valve; 11, one-way valve; 12, adjustable restrictive valve; 13, thermometer; 14, accumulator; 15, pressure relay; 16, speed governing ball valve; 17, electro-hydraulic reversing valve; 18, water vat; 19, the second relief valve; 20, water pump; 21, pump motor; 22, pressure switch.
Embodiment
Referring to figs. 1 through Fig. 2, the utility model embodiment is described further.
A kind of hydraulic cylinder 1 durability testing system, comprise load cylinder 2 and hydraulic pressure power source 4, described hydraulic pressure power source 4 connects hydraulic cylinder 1, described load connects hydraulic cylinder 1 rodless cavity, also comprise load power source 2, described load power source 2 is connected with load cylinder 2, is also provided with the controlling device 5 controlling hydraulic cylinder 1 action between described hydraulic pressure power source 4 and hydraulic cylinder 1.Described load power source 2 comprises oil pump 8, Oil pump electrical machinery 9, oil cylinder 6, accumulator 14 and pressure relay 15, described Oil pump electrical machinery 9 drives oil pump 8, oil pump 8 filler opening connects oil cylinder 6, described oil pump 8 oil outlet connects load cylinder 2 rod chamber, is also connected with accumulator 14 and pressure relay 15 between described load cylinder 2 and oil pump 8.
Filter 7 is connected with between described oil pump 8 filler opening and oil cylinder 6.It is be provided with the off-load voltage stabilizing being beneficial to load power source 2 that described load power source 2 also comprises the first relief valve 10, first relief valve 10, and described first relief valve 10 filler opening connects oil cylinder 6, first relief valve 10 oil outlet and connects oil pump 8 oil outlet.One-way valve 11 is provided with between described oil pump 8 oil outlet and relief valve oil outlet.The setting of one-way valve 11 can avoid fluid to reflux, adjustable restrictive valve 12 and thermometer 13 is also provided with between described accumulator 14 and oil pump 8 oil outlet, adjustable restrictive valve 12 and thermometer 13 be provided with the flow, speed and the Real-Time Monitoring hydraulic element temperature that are beneficial to and regulate oil circuit, be conducive to load power source 2 safe operation.
Described controlling device 5 comprises electro-hydraulic reversing valve 17 and coupled two speed governing ball valves 16.Because the selector valve in use equipment carries out the operating life that 10000 tests decrease water valve, so the valve 13 in control valve group adopts 2 function electro-hydraulic reversing valves 17 in coal machine, valve 12,14 adopts the speed governing ball valve 16 in coal machine.
Described hydraulic pressure power source 4 comprises water pump 20, pump motor 21 and water vat 18, and described pump motor 21 drives water pump 20, and described water pump 20 water intake connects water vat 18, and water pump 20 water outlet connects controlling device 5.Described hydraulic pressure power source 4 also comprises the second relief valve 19, and described first relief valve 10 water intake connects water vat 18, first relief valve 10 water outlet and connects water pump 20 water outlet.Described water pump 20 water outlet is also provided with pressure switch 22.Connected by pipeline between above-mentioned hydraulic element.
2 pairs, the load power source load cylinder 2 be made up of assemblies such as oil pump 8 and accumulators 14 is used to provide constant induced pressure, be conducive to provide larger induced pressure, accumulator 14 can keep the stationarity of pressure, whole hydraulic cylinder 1 durability testing system forms simple, by the outputting power directly regulating electro-hydraulic reversing valve 17 and speed governing ball valve 16 to control hydraulic pressure power source 4, have higher stability, load cylinder 2 and hydraulic cylinder 1 interact, move back and forth, be conducive to reducing energy loss.
The utility model embodiment:
Hydraulic cylinder 1 uphill process: the rodless cavity pressure being the corresponding 170mm hydraulic cylinder 1 of 7.5MPa(17 ton load due to hydraulic cylinder 1 actual working pressure is 7.5MPa), regulate oil pressure source, the rodless cavity of load cylinder 2 is made to remain the oil liquid pressure that 170KN is corresponding, if hydraulic cylinder 1 needs to rise, hydraulic pressure source provides the high pressure water that can overcome the downward 170KN thrust of load cylinder 2 to promote hydraulic cylinder 1 and moves upward.
Hydraulic cylinder 1 declines process: hydraulic cylinder 1 declines and wants build-up pressure, then need to regulate hydraulic pressure source to set up the backwater back pressure of 8MPa, and load cylinder 2 overcomes backwater back pressure to be promoted hydraulic cylinder 1 and decline.
When this programme specifically starts, first Oil pump electrical machinery 9 in load power source 2 is opened, oil pump 8 is driven to work, accumulator 14 starts accumulation of energy, after accumulation of energy is complete, just can close Oil pump electrical machinery 9, open the pump motor 21 of hydraulic pressure power source 4 subsequently, drive water pump 20 operation, regulation relief valve, electro-hydraulic reversing valve 17 and speed governing ball valve 16 control the motion speed of hydraulic cylinder 1, after the certain number of times of operation, switch off the pump motor 21, stoppage in transit whole system, completes hydraulic cylinder 1 durability test, observes the extent of deterioration of hydraulic cylinder 1.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a hydraulic cylinder durability testing system, comprise load cylinder and hydraulic pressure power source, described hydraulic pressure power source connects hydraulic cylinder, described load connects hydraulic cylinder rodless cavity, it is characterized in that, also comprise load power source, described load power source is connected with load cylinder, is also provided with the controlling device controlling hydraulic cylinder action between described hydraulic pressure power source and hydraulic cylinder.
2. a kind of hydraulic cylinder durability testing system according to claim 1, it is characterized in that, described load power source comprises oil pump, Oil pump electrical machinery, oil cylinder, accumulator and pressure relay, described Oil pump electrical machinery drives oil pump, oil pump filler opening connects oil cylinder, described oil pump oil outlet connects load cylinder rod chamber, is also connected with accumulator and pressure relay between described load cylinder and oil pump.
3. a kind of hydraulic cylinder durability testing system according to claim 2, is characterized in that, is connected with filter between described oil pump filler opening and oil cylinder.
4. a kind of hydraulic cylinder durability testing system according to claim 3, is characterized in that, described load power source also comprises the first relief valve, and described first relief valve filler opening connects oil cylinder, and the first relief valve oil outlet connects oil pump oil outlet.
5. a kind of hydraulic cylinder durability testing system according to claim 4, is characterized in that, is provided with one-way valve between described oil pump oil outlet and relief valve oil outlet.
6. a kind of hydraulic cylinder durability testing system according to claim 5, is characterized in that, be also provided with adjustable restrictive valve and thermometer between described accumulator and oil pump oil outlet.
7. a kind of hydraulic cylinder durability testing system according to claim 1, is characterized in that, described controlling device comprises electro-hydraulic reversing valve and coupled two speed governing ball valves.
8. a kind of hydraulic cylinder durability testing system according to claim 6, it is characterized in that, described hydraulic pressure power source comprises water pump, pump motor and water vat, and described pump motor drives water pump, described pump intake connects water vat, and pump outlet connects controlling device.
9. a kind of hydraulic cylinder durability testing system according to claim 8, it is characterized in that, described hydraulic pressure power source also comprises the second relief valve, and described first relief valve water intake connects water vat, and the first relief valve water outlet connects pump outlet.
10. a kind of hydraulic cylinder durability testing system according to claim 9, it is characterized in that, described pump outlet is also provided with pressure switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520541479.XU CN204900413U (en) | 2015-07-24 | 2015-07-24 | Hydraulic cylinder durability test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520541479.XU CN204900413U (en) | 2015-07-24 | 2015-07-24 | Hydraulic cylinder durability test system |
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| Publication Number | Publication Date |
|---|---|
| CN204900413U true CN204900413U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520541479.XU Expired - Fee Related CN204900413U (en) | 2015-07-24 | 2015-07-24 | Hydraulic cylinder durability test system |
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| Country | Link |
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| CN (1) | CN204900413U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762890A (en) * | 2017-01-23 | 2017-05-31 | 中南大学 | A kind of test bed hydraulic control system of multifunction hydraulic |
| CN107524640A (en) * | 2017-09-27 | 2017-12-29 | 国网福建省电力有限公司 | Movable propeller turbine runner tests electrohydraulic control method and device |
-
2015
- 2015-07-24 CN CN201520541479.XU patent/CN204900413U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762890A (en) * | 2017-01-23 | 2017-05-31 | 中南大学 | A kind of test bed hydraulic control system of multifunction hydraulic |
| CN106762890B (en) * | 2017-01-23 | 2018-01-30 | 中南大学 | A kind of test bed hydraulic control system of multifunction hydraulic |
| CN107524640A (en) * | 2017-09-27 | 2017-12-29 | 国网福建省电力有限公司 | Movable propeller turbine runner tests electrohydraulic control method and device |
| CN107524640B (en) * | 2017-09-27 | 2023-11-03 | 国网福建省电力有限公司 | Electrohydraulic control method and device for rotating wheel test of axial flow turbine |
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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 |
Granted publication date: 20151223 Termination date: 20200724 |
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| CF01 | Termination of patent right due to non-payment of annual fee |