CN203822723U - Fully-closed oil tank of underground LHD (load haul dumper) - Google Patents
Fully-closed oil tank of underground LHD (load haul dumper) Download PDFInfo
- Publication number
- CN203822723U CN203822723U CN201420148619.2U CN201420148619U CN203822723U CN 203822723 U CN203822723 U CN 203822723U CN 201420148619 U CN201420148619 U CN 201420148619U CN 203822723 U CN203822723 U CN 203822723U
- Authority
- CN
- China
- Prior art keywords
- oil
- tank
- oil tank
- tank body
- filling device
- 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
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The utility model relates to a fully-closed oil tank of an underground LHD (load haul dumper), and belongs to the field of machinery. The fully-closed oil tank comprises an oil tank body, wherein an oil filling device is arranged at the top of the oil tank body; a plug is arranged in the oil filling device; a pressure release valve is arranged on the oil filling device; the oil tank body is connected with an oil cylinder through an oil suction pipe and an oil return pipe; oil pumps are arranged on the oil suction pipe and an oil feeding pipe; an air bag is arranged in the oil tank body and communicated with the outside of the oil tank body; and an opening of the air bag is sealed by a cover, so that pressure of hydraulic oil in the oil tank can be the same as the atmospheric pressure all along.
Description
Technical field
The utility model relates to a kind of underground carry scraper total closed oil tank, belongs to mechanical field.
Background technique
Hydraulic system is an important component part of underground carry scraper, is also the maximum system that breaks down, and the quality of its performance directly affects reliability and the integrated performance index of scraper complete machine.According to statistics, underground carry scraper 50 ﹪ of domestic use are that hydraulic system causes above, and the problem that the major failure of hydraulic system is hydraulic oil causes, and therefore the performance quality of hydraulic oil container directly affects the quality of hydraulic oil service condition.
The Main Function of hydraulic oil container is the required enough oil plants of storage system, and has the effects such as heat radiation, precipitated impurities, separation bubble in oil.At present, the hydraulic oil container that mining engineering machinery uses mainly contains two large classes: open type oil tank and sealed reservoir.
1, open type oil tank: its top is provided with vent, makes pasta in fuel tank communicate with ambient atmosphere, keeps an atmospheric pressure on pasta.In order to prevent from bringing into dust and the impurity in ambient air, keep the cleaning of fluid, on the case lid of open type oil tank, air-strainer is often housed.Air-strainer comprises filter screen and siccative, the dust and the moisture that are used in filtered air.But air-strainer filter precision is relative, can not get rid of the dust granule of suction completely, also steam and oxygen can not be filtered, the therefore contaminated and oxidation of hydraulic oil, rotten be still unavoidable.In hydraulic system, fluid is contaminated and rotten, not only can reduce its working life, prior it be most important, the modal factor that causes hydraulic system fault.Therefore oxygen, steam and the solid particle of, passing in and out is that open type oil tank cannot overcome.
2, sealed reservoir: it is airtight container, does not communicate with atmosphere, fluid surface filling with inert gas, and inflation pressure is about 0.05MP, and the pressure on pasta is generally not equal to atmospheric pressure, and has intensity, rigidity and sealing to have strict requirement to casing.It has been avoided and extraneous contacting completely, thoroughly completely cut off from extraneous pollution, has effectively reduced the continuous intrusion of solid particle, water, air.But in the time that in case, hydraulic oil volume changes, in casing, the pressure of gas also can change, it is unsettled can causing the back pressure of the oil return of hydraulic system and the internal drainage of pump valve, is not suitable for the system that fluid is imported and exported on a big scale.The oil cylinder cylinder diameter of underground carry scraper is large, and stroke is long, requires hydraulic oil container volume large, does not generally adopt sealed reservoir.
Model utility content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: a kind of pressure that can ensure hydraulic oil in fuel tank underground carry scraper total closed oil tank identical with barometric pressure is all the time provided.
Underground carry scraper total closed oil tank described in the utility model, comprise tank body of oil tank, oil-filling device is established at tank body of oil tank top, in oil-filling device, establish plug, establish pressure relief valve on oil-filling device, tank body of oil tank is connected oil cylinder by fuel sucking pipe with return tube, fuel sucking pipe and send and establish oil pump on oil pipe, air bag is established in tank body of oil tank inside, and air bag is communicated with tank body of oil tank outside, and air bag opening seals by cover cap.
On tank body of oil tank, establish oil-suction oil filter, oil-suction oil filter connects fuel sucking pipe, the metal granule producing due to component abrasion in filtering hydraulic system, and sealing part abrasion produce the pollutant such as rubber impurities, make the fluid that flows back to fuel tank keep clean.
On tank body of oil tank, establish return oil filter, return oil filter connects return tube, the metal granule producing due to component abrasion in filtering hydraulic system, and sealing part abrasion produce the pollutant such as rubber impurities, make the fluid that flows back to fuel tank keep clean.
On tank body of oil tank, establish oil level indicator, oil level indicator has oil temperature sensor simultaneously, in order to indicate oil level and oil temperature.
Insepction window lid is established in tank body of oil tank bottom, can check tank body of oil tank inner case by insepction window lid.
Hoisting ring is established at tank body of oil tank top, convenient lifting.
Oil-filling device material is Q345A, has good plasticity, welding performance and good impact toughness and corrosion resistance, can ensure to add the turbidity test of hydraulic oil in fuel tank.
Working principle and process:
When work, air bag is in the most flat state, then carry out shutoff with cover cap, make air bag keep the most flat state, when oiling, first export to total closed oil tank casing and fill it up with hydraulic oil from oil-filling device, start oil pump, to oil cylinder, valves etc. are oil-filled, air in hydraulic system and impurity can be recycled in tank body of oil tank or in hydraulic oil, and when cylinder piston rod is reduced to limit position state, fill again tank body of oil tank, now can carry out cleanliness of hydraulic oil process, with the hydraulic oil in circulation fuel tank, then oil filter work and oil cylinder work are hocketed, hydraulic oil in clean whole hydraulic system.After hydraulic oil checks that turbidity test are qualified, under cylinder piston rod is reduced to ultimate state, tank body of oil tank is full of to oil, and the plug on oil-filling device is screwed on together with pressure relief valve, remove the cover cap on air bag simultaneously, allow static a period of time of whole hydraulic system, make the gas in hydraulic oil discharge fluid, allow again the several strokes of oil cylinder work, air bag is corresponding makes recessed flat or alteration of form that drum is protruding, gas in tank body of oil tank can roll up, pressure in tank body of oil tank is sharply raise, pressure relief valve can be opened automatically, drain isolated gas in hydraulic oil, in final tank body of oil tank, the pressure of hydraulic oil is identical with barometric pressure all the time.
The beneficial effect that the utility model compared with prior art had is:
Underground carry scraper total closed oil tank described in the utility model, simple in structure, air bag can effectively be assisted the bubble in exudate force feed, effectively ensure underground carry scraper safe operation, solved hydraulic oil container box shape structure and underground carry scraper supporting, the problems such as the turbidity test of the hydraulic oil of hydraulic system, have reduced cost of production, improve the working life of the hydraulic element in hydraulic system, improved its manufacturing efficiency.
Brief description of the drawings
Fig. 1 is the utility model embodiment schematic diagram;
Fig. 2 is plan view embodiment illustrated in fig. 1.
In figure: 1, tank body of oil tank; 2, return oil filter; 3, blind flange; 4, cover cap; 5, air bag; 6, pressure relief valve; 7, oil-filling device; 8, oil level indicator; 9, insepction window lid; 10, jettison gear; 11, oil-suction oil filter; 12, hoisting ring.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As depicted in figs. 1 and 2, underground carry scraper total closed oil tank described in the utility model, comprise tank body of oil tank 1, oil-filling device 7 is established at tank body of oil tank 1 top, in oil-filling device 7, establishes plug, on oil-filling device 7, establish pressure relief valve 6, tank body of oil tank 1 is connected oil cylinder by fuel sucking pipe with return tube, and fuel sucking pipe is established oil pump with sending on oil pipe, and air bag 5 is established in tank body of oil tank 1 inside, air bag 5 is communicated with tank body of oil tank 1 outside, and air bag 5 openings seal 4 by cover cap.
On tank body of oil tank 1, establish oil-suction oil filter 11, oil-suction oil filter 11 connects fuel sucking pipe, the metal granule producing due to component abrasion in filtering hydraulic system, and sealing part abrasion produce the pollutant such as rubber impurities, make the fluid that flows back to fuel tank keep clean.
On tank body of oil tank 1, establish return oil filter 2, return oil filter 2 connects return tube, the metal granule producing due to component abrasion in filtering hydraulic system, and sealing part abrasion produce the pollutant such as rubber impurities, make the fluid that flows back to fuel tank keep clean.
On tank body of oil tank 1, establish oil level indicator 8, oil level indicator 8 has oil temperature sensor simultaneously, in order to indicate oil level and oil temperature.
Insepction window lid 9 is established in tank body of oil tank 1 bottom, can check tank body of oil tank 1 inner case by insepction window lid 1.
Hoisting ring 12 is established at tank body of oil tank 1 top, convenient lifting.
Oil-filling device 7 materials are Q345A, have good plasticity, welding performance and good impact toughness and corrosion resistance, can ensure to add the turbidity test of hydraulic oil in fuel tank.
Working principle and process:
When work, air bag 5 is in the most flat state, then with carrying out shutoff with cover cap 4, make air bag 5 keep the most flat state, when oiling, first export to total closed oil tank casing and fill it up with hydraulic oil from oil-filling device 7, start oil pump, to oil cylinder, valves etc. are oil-filled, air in hydraulic system and impurity can be recycled in tank body of oil tank 1 or in hydraulic oil, and when cylinder piston rod is reduced to limit position state, fill again tank body of oil tank 1, now can carry out cleanliness of hydraulic oil process, with the hydraulic oil in circulation fuel tank, then oil filter work and oil cylinder work are hocketed, hydraulic oil in clean whole hydraulic system.After hydraulic oil checks that turbidity test are qualified, under cylinder piston rod is reduced to ultimate state, tank body of oil tank 1 is full of to oil, and the plug on oil-filling device 7 is screwed on together with pressure relief valve 6, remove the cover cap 4 on air bag 5 simultaneously, allow static a period of time of whole hydraulic system, make the gas in hydraulic oil discharge fluid, allow again the several strokes of oil cylinder work, air bag 5 is corresponding makes recessed flat or alteration of form that drum is protruding, gas in tank body of oil tank 1 can roll up, pressure in tank body of oil tank 1 is sharply raise, pressure relief valve 6 can be opened automatically, drain isolated gas in hydraulic oil, the pressure of final tank body of oil tank 1 interior hydraulic oil is identical with barometric pressure all the time.
Claims (7)
1. a underground carry scraper total closed oil tank, comprise tank body of oil tank (1), oil-filling device (7) is established at tank body of oil tank (1) top, oil-filling device is established plug in (7), on oil-filling device (7), establish pressure relief valve (6), tank body of oil tank (1) is connected oil cylinder by fuel sucking pipe with return tube, fuel sucking pipe and send and establish oil pump on oil pipe, it is characterized in that: air bag (5) is established in tank body of oil tank (1) inside, air bag (5) is communicated with tank body of oil tank (1) outside, and air bag (5) opening seals (4) by cover cap.
2. underground carry scraper total closed oil tank according to claim 1, is characterized in that: on tank body of oil tank (1), establish oil-suction oil filter (11), oil-suction oil filter (11) connects fuel sucking pipe.
3. underground carry scraper total closed oil tank according to claim 1 and 2, is characterized in that: on tank body of oil tank (1), establish return oil filter (2), return oil filter (2) connects return tube.
4. underground carry scraper total closed oil tank according to claim 3, is characterized in that: on tank body of oil tank (1), establish oil level indicator (8), oil level indicator (8) has oil temperature sensor simultaneously.
5. underground carry scraper total closed oil tank according to claim 1 and 2, is characterized in that: insepction window lid (9) is established in tank body of oil tank (1) bottom.
6. underground carry scraper total closed oil tank according to claim 1 and 2, is characterized in that: hoisting ring (12) is established at tank body of oil tank (1) top.
7. underground carry scraper total closed oil tank according to claim 1 and 2, is characterized in that: oil-filling device (7) material is Q345A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420148619.2U CN203822723U (en) | 2014-03-28 | 2014-03-28 | Fully-closed oil tank of underground LHD (load haul dumper) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420148619.2U CN203822723U (en) | 2014-03-28 | 2014-03-28 | Fully-closed oil tank of underground LHD (load haul dumper) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822723U true CN203822723U (en) | 2014-09-10 |
Family
ID=51478232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420148619.2U Expired - Fee Related CN203822723U (en) | 2014-03-28 | 2014-03-28 | Fully-closed oil tank of underground LHD (load haul dumper) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822723U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134674A (en) * | 2015-08-12 | 2015-12-09 | 兖州煤业股份有限公司 | Hydraulic oil tank and engineering machinery employing same |
-
2014
- 2014-03-28 CN CN201420148619.2U patent/CN203822723U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134674A (en) * | 2015-08-12 | 2015-12-09 | 兖州煤业股份有限公司 | Hydraulic oil tank and engineering machinery employing same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101303032A (en) | Integrated type hydraulic headstock gear total closed oil tank | |
| EP2916001B1 (en) | High-pressure air pump | |
| CN203822723U (en) | Fully-closed oil tank of underground LHD (load haul dumper) | |
| CN206112097U (en) | Petroleum casing pipe static pressure type hydrostatic testing machine high pressure fills valve | |
| CN201236851Y (en) | Totally-enclosed fuel tank of integral hydraulic hoist | |
| CN204870551U (en) | Level sensor business turn over gas breather valve pressure balance and flow detection device | |
| CN208203993U (en) | A kind of tower pressure vessel | |
| CN205605900U (en) | Positive negative pressure relief valve of low level spring | |
| CN204508768U (en) | Hydraulic damper vacuumizes filling oil machine | |
| CN204261425U (en) | Can self-bleeding bag type filter | |
| CN207161035U (en) | A kind of anti-race oil packing box of novel and multifunctional double-vane anticreep | |
| CN103127879B (en) | A kind of Novel particle arrangement mechanism | |
| CN203809428U (en) | Oil absorption filter element capable of preventing air from being sucked | |
| CN204502514U (en) | Continuous Suction filtration device that can be dust-proof | |
| CN201391660Y (en) | Liquid sealer | |
| CN201144827Y (en) | Vertical type non-sealed self-suction oil pump | |
| CN209302396U (en) | A kind of oil mist collecting device | |
| CN205350814U (en) | Butter adds notes pile -up valve | |
| CN204003308U (en) | Automobile specified petrol pump | |
| CN203809228U (en) | Water pump | |
| CN202927059U (en) | Quick-open mud discharging valve with positioning ring | |
| CN112797144B (en) | Oil saving device for sealing shaft head of reduction gearbox of oil pumping unit | |
| CN203786571U (en) | Constant current liquid control device | |
| CN202883340U (en) | Oil pump assembly durability test bench | |
| CN203549343U (en) | Oil tank observing window |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20170328 |