CN204140547U - Open the cabin the pressure experimental device of oil cylinder - Google Patents
Open the cabin the pressure experimental device of oil cylinder Download PDFInfo
- Publication number
- CN204140547U CN204140547U CN201420524610.7U CN201420524610U CN204140547U CN 204140547 U CN204140547 U CN 204140547U CN 201420524610 U CN201420524610 U CN 201420524610U CN 204140547 U CN204140547 U CN 204140547U
- Authority
- CN
- China
- Prior art keywords
- oil
- pressure
- ball valve
- cabin
- unit
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The utility model discloses a kind of pressure experimental device of the oil cylinder that opens the cabin, this oil cylinder that opens the cabin has the first oil pocket and the second oil pocket, this pressure experimental device comprises low-pressure reservoir unit, low pressure fuel pump unit, control valve unit, oil connection unit and high pressure oil pump unit, and this low pressure fuel pump unit is used for that the hydraulic oil in low-pressure reservoir unit is delivered to this and opens the cabin in oil cylinder; Control valve unit is for controlling the flow direction of this open the cabin oily gas in the jar, hydraulic oil or high pressure oil; Oil connection unit is used for connecting fast high pressure oil pump unit and this oil cylinder show test pressure of opening the cabin; The test pressure that this high pressure oil pump unit opens the cabin needed for oil cylinder for improving this.This apparatus structure of the utility model is simple and reliable, easy to operate, alleviates labor intensity, reduces fluid loss and pollution, improves working efficiency, decrease cost of production, avoid frequent oiling.
Description
Technical field
The utility model relates to a kind of pressure experimental device of the oil cylinder that opens the cabin.
Background technique
Bulk carrier is topmost ship for civil use type, and Bulk carrier is provided with cabin needs freight for depositing, and in order to prevent the cargo damage in transportation process in cabin, cabin all devises hatchway cover system.Hatchway cover weight, at several tons to tens tons, is generally designed with hydraulic hatch cover switching system, and the working pressure of this hydraulic system is at 20Mpa ~ 30Mpa, and the structure of the oil cylinder that opens the cabin as shown in Figure 1.
Please understood according to Fig. 1, the oil cylinder that opens the cabin is double-action plunger oil cylinder, general vertical paired mounting, be used to open or close hatchway cover, this oil cylinder 7 that opens the cabin comprises cylinder body 71, piston 72, plunger 73 and be sealedly attached to the cylinder cap 74 of right part of this cylinder body 71, one end of this plunger 73 is fixed on this piston 72 by a nut, a closed cavity is formed in this cylinder body, this piston 72 is slidedly arranged on the inwall of this cylinder body 71, and this closed cavity is separated into one first oil pocket 711 and the second oil pocket 712 being positioned at this first oil pocket 711 left end, the perisporium of the right part of this cylinder body is provided with first oil connection 713 be connected with this first oil pocket 711, the perisporium of the left part of this cylinder body is provided with second oil connection 714 be connected with this second oil pocket 712, spaced first seal ring 75 and the second seal ring 76 has been installed with between the outer wall of this piston 72 and the inwall of this corresponding cylinder body, one the 3rd seal ring 77 has been installed with between the inwall of this piston 72 and the outer surface of this corresponding plunger, one the 4th seal ring 78 has been installed with between the outer surface of this plunger 73 and the internal face of this cylinder cap 74, one the 5th seal ring 79 has been installed with between the outer wall of this cylinder cap 74 and the internal face of this cylinder body.
Its working principle is: this oil cylinder that opens the cabin is arranged on the base of ship, when needing to open hatchcover, hydraulic oil enters the second oil pocket from the second oil connection, promote piston and plunger up, the hydraulic oil simultaneously in the first oil pocket flows back to hydraulic system from the first oil connection; During closedown hatchcover, hydraulic oil flows to contrary.When the second oil pocket oil-feed work, the first seal ring 75 and the 3rd seal ring 77 play seal action; When the first oil pocket oil-feed work, the second seal ring 76, the 4th seal ring 78 and the 5th seal ring 79 play seal action.After the oil cylinder that opens the cabin uses some cycles, first seal ring, the second seal ring, the 3rd seal ring, the 4th seal ring and the 5th seal ring all can damage, the working surface of piston and plunger also can wear and tear, need to open and inspect repairing, seal ring renews, and has repaired rear needs and has carried out pressure test to the first oil pocket and the second oil pocket respectively.
Wherein, pressure test is done to the oil cylinder that opens the cabin and have some requirement following: the hydraulic oil that the oil cylinder that opens the cabin does pressure test use is more, and oil pocket is full of needs a few hectolitre oil; It is higher that the oil cylinder that opens the cabin does the pressure that pressure test reaches, and is generally 20 ~ 30Mpa; The oil cylinder that opens the cabin does pressure test to be needed to do experiment respectively to the first oil pocket and the second oil pocket; Pressure test finished by the oil cylinder that opens the cabin, and also the hydraulic oil of closed test all will be discharged.
But the conventional pressure test method of the oil cylinder that opens the cabin comprises the following steps:
S
1', second oil connection connect source of compressed air, utilize pressurized air to be ejected by plunger;
S
2', plunger ejects;
S
3', pull down the source of compressed air of the second oil connection, the first oil connection connects high pressure oil pump, to the first oil pocket oiling;
S
4', the first oil pocket fills oil, carries out pressure test inspection.
S
5', the first oil pocket off-test, pull down the high pressure oil pump of the first oil connection, be connected to the second oil connection, meanwhile, first oil connection connect oil-collecting disk.
S
6', high pressure oil pump to the second oil pocket oiling, the oil in the first oil pocket flow to oil-collecting disk.
S
7', the second oil pocket fills oil, carries out pressure test inspection.
S
8', pull down the high pressure oil pump of the second oil connection, the oil-collecting disk pulling down the first oil connection is connected to the second oil connection, connects source of compressed air at the first oil connection.
S
9', pressurized air by plunger jacking oil pump, the hydraulic oil in the second oil pocket is discharged to oil-collecting disk.
S
10', pull down the oil-collecting disk of the second oil connection and the source of compressed air of the first oil connection, off-test.
But, adopt conventional method to open the cabin the pressure test of oil cylinder, Problems existing:
(1) because test needs pressure higher, large discharge low pressure pump cannot be tested, generally commercially available high pressure oil pump flow is all little, oil reserve is also few, be used as test, make oil pocket be full of hydraulic oil to need for a long time, it is low that efficiency also frequently will be refueled in centre, and the high pressure oil pump price comparison of large discharge is expensive;
(2) because needs carry out pressure testing to the first oil pocket and the second oil pocket, tested and also will discharge test oil, need repeatedly to connect to tear oil connection open, efficiency is low, meanwhile, also easily causes test hydraulic fluid leak, causes fluid to lose and environmental pollution.
Model utility content
The technical problems to be solved in the utility model be need the big-flow high-pressure oil pump of configuration rates costliness to overcome in traditional pressure test method of the prior art, each test needs repeatedly to connect and tears that oil connection, labor intensity are large open, fluid loss, frequently adds the defects such as test oil, operating efficiency are low, provides a kind of pressure experimental device of the oil cylinder that opens the cabin.
The utility model solves above-mentioned technical problem by following technical proposals:
A kind of pressure experimental device of the oil cylinder that opens the cabin, this oil cylinder that opens the cabin has one first oil pocket and is positioned at the second oil pocket of this first oil pocket left end, its feature is, this pressure experimental device comprises low-pressure reservoir unit, low pressure fuel pump unit, control valve unit, oil connection unit and high pressure oil pump unit, and this low-pressure reservoir unit is for providing hydraulic oil needed for the pressure test of this oil cylinder that opens the cabin and reclaiming the hydraulic oil of discharging in this oil cylinder that opens the cabin;
This low pressure fuel pump unit is used for that the hydraulic oil in this low-pressure reservoir unit is delivered to this and opens the cabin in oil cylinder, and the entrance point of this low pressure fuel pump unit is connected with the oil outlet of this low-pressure reservoir unit, the outlet end of this low pressure fuel pump unit is connected with the top of this control valve unit;
This control valve unit is for controlling the flow direction of this open the cabin oily gas in the jar, hydraulic oil or high pressure oil, this control valve unit comprises the first group of ball valve and second group of ball valve that are connected in parallel, this first group of ball valve comprises the first ball valve and the second ball valve that are sequentially connected in series, this second group of ball valve comprises the 3rd ball valve and the 4th ball valve that are sequentially connected in series, and this second ball valve is all connected with the return opening of this low-pressure reservoir unit with the bottom of the 4th ball valve;
This oil connection unit is used for connecting fast high pressure oil pump unit and this oil cylinder show test pressure of opening the cabin, and this first oil pocket is connected between this first ball valve and second ball valve by this oil connection unit, this second oil pocket is connected between the 3rd ball valve and the 4th ball valve by this oil connection unit;
The test pressure that this high pressure oil pump unit opens the cabin needed for oil cylinder for improving this, the high pressure hose that this high pressure oil pump unit comprises high pressure oil pump and is connected with this high pressure oil pump, this high pressure hose is connected to the top of this first ball valve and the 3rd ball valve by a control loop, and a source of compressed air is connected to the top of this first ball valve and the 3rd ball valve by a controlling brancher.
In this programme, low-pressure reservoir unit can store hydraulic oil enough needed for pressure test, eliminate frequent trouble of refueling, meanwhile, the whole hydraulic oil of off-test is recyclable.
In addition, adopt pressurized air, high pressure oil pump and low pressure fuel pump combining form to do pressure test, low pressure oiling, each step such as high-potting and pressurized air oil extraction substep is coherent to carry out, and improves working efficiency.And decrease equipment investment, expensive high-pressure high-flow hydraulic-pressure pump need not be bought, as long as configure small flow high pressure oil pump and each one of low pressure and mass flow oil pump respectively, decrease cost of production.
In addition, adopt control valve unit, do not need to change joint and can realize, to the switching in the oily direction of turnover, only needing once to connect oil pipe, just testing the first oil pocket and the second oil pocket, alleviate labor intensity, reduce fluid loss and pollution, increase work efficiency.
Preferably, this low-pressure reservoir unit comprises a fuel tank, the water level gage be arranged on the inwall of this fuel tank, refuel air filter, oil return filter and the oil outlet tube that is arranged in this fuel tank, and this oiling air filter is arranged at the top of this fuel tank near side-walls;
This oil return filter is arranged at the top of the center region of this fuel tank, and the entrance point of this oil return filter is connected to the bottom of this second ball valve and the 4th ball valve, and the outlet end of this oil return filter is connected on this fuel tank.
Preferably, this low pressure fuel pump unit comprises a low pressure fuel pump, the entrance point of this low pressure fuel pump is connected with the outlet end of this oil outlet tube by one first stop valve, and the outlet end of this low pressure fuel pump is connected to the top of this first ball valve and the 3rd ball valve by one first safety check.
Preferably, this low pressure fuel pump unit also comprises a relief valve, and the entrance point of this relief valve is connected between this low pressure fuel pump and this first safety check, and the outlet end of this relief valve is connected to the entrance point of this oil return filter.
Preferably, this oil connection unit comprises be parallel to each other spaced first connected pipes and the second connected pipes, this first connected pipes is provided with some first quick inserting joints, and the left end of this first connected pipes is connected between this first ball valve and second ball valve, the right-hand member of this first connected pipes is connected with one first pressure gauge, and by one of them, this first quick inserting joint is connected with this first connected pipes this first oil pocket;
This second connected pipes is provided with some second quick inserting joints, and the left end of this second connected pipes is connected between the 3rd ball valve and the 4th ball valve, the right-hand member of this second connected pipes is connected with one second pressure gauge, and by one of them, this second quick inserting joint is connected with this second connected pipes this second oil pocket.
Preferably, control loop comprises the second safety check and the second stop valve that are connected in parallel, and the entrance point of this second safety check is connected on this high pressure hose, and the outlet end of this second safety check is connected to the top of this first ball valve and the 3rd ball valve;
The entrance point of this second stop valve is connected to the top of this first ball valve and the 3rd ball valve, and the outlet end of this second stop valve is connected on this high pressure hose.
Preferably, this controlling brancher comprises the 3rd stop valve and the 3rd safety check that are sequentially connected in series, and the entrance point of the 3rd stop valve is connected with this source of compressed air, and the outlet end of the 3rd safety check is connected to the top of this first ball valve and the 3rd ball valve.
On the basis meeting related domain general knowledge, above-mentioned each optimum condition, can combination in any, obtains each preferred embodiments of the utility model.
Positive progressive effect of the present utility model is:
This apparatus structure of the utility model is simple and reliable, easy to operate, do not need to change the switching that joint can realize the oily direction of turnover, only need once to connect oil pipe, just can test the first oil pocket and the second oil pocket, alleviate labor intensity, reduce fluid loss and pollution, improve working efficiency, decrease cost of production, avoid frequent oiling.
Accompanying drawing explanation
Fig. 1 is the structural representation of oil cylinder of opening the cabin.
Fig. 2 is the structural representation of the pressure experimental device of the utility model preferred embodiment.
Description of reference numerals:
Low-pressure reservoir unit: 1 fuel tank: 11 water level gages: 12
Oiling air filter: 13 oil return filters: 14 oil outlet tubes: 15
Low pressure fuel pump unit: 2 low pressure fuel pumps: 21 first stop valves: 22
First safety check: 23 relief valves: 24
Control valve unit: 3 first ball valves: 31 second ball valves: 32
3rd ball valve: 33 the 4th ball valves: 34
Oil connection unit: 4 first connected pipes: 41 first quick inserting joints: 42
First pressure gauge: 43 second connected pipes: 44 second quick inserting joints: 45
Second pressure gauge: 46
High pressure oil pump unit: 5 high pressure oil pumps: 51 high pressure hoses: 52
Second safety check: 53 second stop valves: 54
Controlling brancher: 6 the 3rd stop valves: 61 the 3rd safety check: 62
Open the cabin oil cylinder: 7 cylinder bodies: 71 first oil pockets: 711
Second oil pocket: 712 first oil connections: 713 second oil connections: 714
Piston: 72 plungers: 73 cylinder caps: 74
First seal ring: 75 second seal rings: 76 the 3rd seal rings: 77
4th seal ring: 78 the 5th seal rings: 79
Embodiment
Lift preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the utility model to be described.
In description of the present utility model, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
As shown in Figure 1, the oil cylinder 7 that opens the cabin comprises cylinder body 71, piston 72, plunger 73 and is sealedly attached to the cylinder cap 74 of right part of cylinder body 71, and one end of this plunger 73 is fixed on piston 72 by a nut.Be formed with a closed cavity in cylinder body 71, this piston 72 is slidedly arranged on the inwall of cylinder body 71, and closed cavity is separated into one first oil pocket 711 and the second oil pocket 712 being positioned at this first oil pocket 711 left end.Meanwhile, the perisporium of the right part of this cylinder body 71 is provided with first oil connection 713 be connected with the first oil pocket 711, and the perisporium of the left part of this cylinder body 71 is provided with second oil connection 714 be connected with the second oil pocket 712.
, please understood according to Fig. 2, the utility model provides a kind of pressure experimental device of the oil cylinder that opens the cabin for this reason, and this pressure experimental device comprises low-pressure reservoir unit 1, low pressure fuel pump unit 2, control valve unit 3, oil connection unit 4 and high pressure oil pump unit 5.Wherein, this control valve unit 3 is for controlling the flow direction of gas, low-pressure hydraulic oil or high pressure liquid force feed in this oil cylinder 7 that opens the cabin.This control valve unit 3 comprises the first group of ball valve and second group of ball valve that are connected in parallel, this first group of ball valve comprises the first ball valve 31 and the second ball valve 32 be sequentially connected in series, this second group of ball valve comprises the 3rd ball valve 33 and the 4th ball valve 34 that are sequentially connected in series, and this second ball valve 32 is all connected with the return opening of this low-pressure reservoir unit 1 with the bottom of the 4th ball valve 34.
In the present embodiment, adopt control valve unit 3, do not need to change the switching that joint can realize the oily direction of turnover, only need once to connect oil pipe, just can test the first oil pocket 711 and the second oil pocket 712, alleviate labor intensity, reduce fluid loss and pollution, increase work efficiency.
In addition, this low-pressure reservoir unit 1 is for providing hydraulic oil needed for the pressure test of the oil cylinder 7 that opens the cabin and reclaiming the hydraulic oil of discharging in this oil cylinder 7 that opens the cabin.This low-pressure reservoir unit 1 comprises a fuel tank 11, the water level gage 12 be arranged on the inwall of fuel tank 11, refuel air filter 13, oil return filter 14 and the oil outlet tube 15 that is arranged in this fuel tank 11.Wherein, fuel tank 11 is for storing the hydraulic oil of pressure testing; The convenient trapped fuel amount of observing fuel tank 11 of water level gage 12.
As shown in Figure 2, this oiling air filter 13 is arranged on the top of fuel tank 11 near side-walls.At this, refuel air filter 13 both as the oil filler of fuel tank 11, also as the connecting port of fuel tank 11 with ambient atmosphere, when discharging in time or suck air during oil mass change in fuel tank 11, avoid and can produce pressure to fuel tank 11 when oil mass increases and degree of vacuum can be produced to fuel tank 11 when oil mass reduces.
Meanwhile, this oil return filter 14 is arranged at the top of the center region of fuel tank 11, and the entrance point of oil return filter 14 is connected to the bottom of the second ball valve 32 and the 4th ball valve 34, and the outlet end of oil return filter 14 is connected on fuel tank 11.Wherein, oil return filter 14 for receiving the hydraulic oil of returning from system, and filters impurity wherein.Oil outlet tube 15 is connected with the first stop valve 22 of low pressure fuel pump unit 2, sucks oil for low pressure fuel pump provides.
In the present embodiment, low-pressure reservoir unit 1 can store hydraulic oil enough needed for pressure test, eliminate frequent trouble of refueling, meanwhile, the whole hydraulic oil of off-test is recyclable.
Refer to Fig. 2 to be understood, low pressure fuel pump unit 2 opens the cabin in oil cylinder 7 for being delivered to by the hydraulic oil in this low-pressure reservoir unit 1, and the entrance point of low pressure fuel pump unit 2 is connected with the oil outlet of low-pressure reservoir unit 1, the outlet end of this low pressure fuel pump unit 2 is connected with the top of this control valve unit 3.
Wherein, this low pressure fuel pump unit 2 comprises a low pressure fuel pump 21, the entrance point of this low pressure fuel pump 21 is connected with the outlet end of oil outlet tube 15 by the first stop valve 22, and the outlet end of low pressure fuel pump 21 is connected to the top of the first ball valve 31 and the 3rd ball valve 33 by one first safety check 23.Low pressure fuel pump 21 is large discharge low pressure gear pumps, for experimental liquid force feed in fuel tank 11 is injected the oil cylinder that opens the cabin to be tested; First stop valve 22 works and often opens.When low pressure fuel pump 21 runs, the first safety check 23 is by experimental liquid force feed injection control valve unit 3, and when high pressure oil pump 51 or pressurized air inject, the first safety check 23 cuts out automatically.In the present embodiment, low pressure fuel pump can by commercially, and such as, at Botou City Hai Na oil pump, Co., Ltd can fetch the low pressure fuel pump that model is YCB3.3-1.6.
Meanwhile, this low pressure fuel pump unit 2 also comprises a relief valve 24, and the entrance point of this relief valve 24 is connected between low pressure fuel pump 21 and the first safety check 23, and the outlet end of relief valve 24 is connected to the entrance point of oil return filter 14.When the oil pocket of the oil cylinder that opens the cabin to be tested fills experimental liquid force feed, low pressure fuel pump 21 does not cut out in time, and this relief valve 24 can be opened automatically, makes unnecessary oil return fuel tank 11 from oil return filter 14.
In addition, this oil connection unit 4 is for connecting high pressure oil pump unit 5 and this oil cylinder show test pressure of opening the cabin fast.And the first oil pocket 711 is connected between this first ball valve 31 and second ball valve 32 by the first oil connection 713, oil connection unit 4, this second oil pocket 712 is connected between the 3rd ball valve 33 and the 4th ball valve 34 by the second oil connection 714, oil connection unit 4.
Wherein, this oil connection unit 4 comprises spaced first connected pipes 41 and the second connected pipes 44 that be parallel to each other.First connected pipes 41 is provided with some first quick inserting joints 42, and the left end of this first connected pipes 41 is connected between this first ball valve 31 and second ball valve 32, the right-hand member of this first connected pipes 41 is connected with one first pressure gauge 43, and by one of them, this first quick inserting joint 42 is connected with this first connected pipes 41 this first oil pocket 711.
Simultaneously, this second connected pipes 44 is provided with some second quick inserting joints 45, and the left end of this second connected pipes 44 is connected between the 3rd ball valve 33 and the 4th ball valve 34, the right-hand member of this second connected pipes 44 is connected with one second pressure gauge 46, and by one of them, this second quick inserting joint 45 is connected with this second connected pipes 44 this second oil pocket 712.
In addition, this high pressure oil pump unit 5 is for improving the test pressure opened the cabin needed for oil cylinder.Wherein, the high pressure hose 52 that high pressure oil pump unit 5 comprises high pressure oil pump 51 and is connected with high pressure oil pump 51, high pressure hose 52 is connected to the top of this first ball valve 31 and the 3rd ball valve 33 by a control loop, and a source of compressed air is connected to the top of this first ball valve 31 and the 3rd ball valve 33 by a controlling brancher 6.High pressure oil pump 51 carries fuel tank high-pressure small flow plunger pumps, for the oil cylinder that opens the cabin provides enough test pressures.In the present embodiment, high pressure oil pump can by commercially, and such as, can fetch in upper Haitai friend Tools Co., ltd the high pressure oil pump that model is CJB400, its pressure of the high pressure oil pump of this model is 40MPa, and its flow is 1.6L/min.Wherein, with regard to the art, pressure is that 0Pa ~ 2.5MPa is referred to as low pressure, pressure is that 2.5MPa ~ 8MPa is referred to as middle pressure, pressure is that 8MPa ~ 16MPa is referred to as mesohigh, and pressure is that 16MPa ~ 32MPa is referred to as high pressure, and pressure is greater than 32MPa and is referred to as ultrahigh pressure.
Further, control loop comprises the second safety check 53 and the second stop valve 54 be connected in parallel, and the entrance point of this second safety check 53 is connected on this high pressure hose 52, the outlet end of this second safety check 53 is connected to the top of this first ball valve 31 and the 3rd ball valve 33; The entrance point of this second stop valve 54 is connected to the top of this first ball valve 31 and the 3rd ball valve 33, and the outlet end of this second stop valve 54 is connected on this high pressure hose 52.Wherein, close the second stop valve 54 during high-pressure injection, high pressure liquid force feed is from the second safety check 53 ramp metering valve cell 3; After having tested, opening the second stop valve 54 can release pressure.
Further, this controlling brancher 6 comprises the 3rd stop valve 61 and the 3rd safety check 62 that are sequentially connected in series, and the entrance point of the 3rd stop valve 61 is connected with this source of compressed air, the outlet end of the 3rd safety check 62 is connected to the top of this first ball valve 31 and the 3rd ball valve 33.Wherein, the 3rd stop valve 61 enters for controlling pressurized air, when using high and low pressure hydraulic oil to inject, even if forget that cut out the 3rd stop valve the 61, three safety check 62 also can prevent fluid from entering source of compressed air.
In the present embodiment, adopt pressurized air, high pressure oil pump 51 and low pressure fuel pump 21 combining form to do pressure test, low pressure oiling, each step such as high-potting and pressurized air oil extraction substep is coherent to carry out, and improves working efficiency.And decrease equipment investment, expensive high-pressure high-flow hydraulic-pressure pump need not be bought, as long as configure small flow high pressure oil pump 51 and each one of low pressure and mass flow oil pump respectively, decrease cost of production.
The utility model additionally provides a kind of pressure test method adopting pressure experimental device as above to test the oil cylinder that opens the cabin.Wherein, needed to do before the pressure test of oil cylinder of carrying out opening the cabin following some prepare: oil dropping apparatus adds enough hydraulic oil, carries fuel tank add appropriate hydraulic oil to high pressure oil pump 51; Switch on power to high pressure oil pump 51 and low pressure fuel pump 21; Access source of compressed air to the 3rd stop valve 61, and the compressed-air actuated pressure in this source of compressed air is 0.6Mpa; First oil connection 713 of the oil cylinder that opens the cabin to be tested is connected with the first quick inserting joint 42 on the first connected pipes 41 by high-pressure connecting pipe, and the second oil connection 714 of the oil cylinder that opens the cabin to be tested is connected with the second quick inserting joint 45 on the second connected pipes 44 by high-pressure connecting pipe; Close each stop valve and ball valve.
After preliminary preparation completes, by the pressure test of the oil cylinder that carries out opening the cabin.And this pressure test method specifically comprises the following steps:
Step 100, open this second ball valve 32 and the 3rd ball valve 33, open the 3rd stop valve 61 again, pressurized air in this source of compressed air enters in the second oil pocket 712 of the oil cylinder that opens the cabin to be tested, meanwhile, the air in the first oil pocket 711 of the oil cylinder that opens the cabin to be tested is discharged from the oiling air filter 13 of this low-pressure reservoir unit 1.
Wherein, in this step, pressurized air in this source of compressed air enters in the second oil pocket 712 of the oil cylinder that opens the cabin to be tested through the 3rd stop valve 61, the 3rd safety check 62, the 3rd ball valve 33, second connected pipes 44, second quick inserting joint 45, second oil connection 714, and piston 72 is pushed to the left part of cylinder body 71 successively; Meanwhile, the air in the first oil pocket 711 of the oil cylinder that opens the cabin to be tested is discharged from the oiling air filter 13 of this low-pressure reservoir unit 1 through the first oil connection 713, first quick inserting joint 42, first connected pipes 41, second ball valve 32, oil return filter 14, fuel tank successively.
Step 101, closes the 3rd stop valve 61, closes this second ball valve 32 and the 3rd ball valve 33.
Step 102, open this first ball valve 31 and the 4th ball valve 34, open this first stop valve 22 again, open this low pressure fuel pump 21, low-pressure hydraulic oil enters in the first oil pocket 711 of this oil cylinder that opens the cabin to be tested from fuel tank, and the piston 72 of this oil cylinder that opens the cabin to be tested is pushed to the left end of this oil cylinder that opens the cabin to be tested, meanwhile, the air in the second oil pocket 712 of this oil cylinder that opens the cabin to be tested is discharged from the oiling air filter 13 of this low-pressure reservoir unit 1.
Wherein, in this step, low-pressure hydraulic oil from fuel tank successively through oil outlet tube 15, first stop valve 22, low pressure fuel pump 21, first safety check 23, first ball valve 31, first connected pipes 41, first quick inserting joint 42, first oil connection 713 enters in the first oil pocket 711 of this oil cylinder that opens the cabin to be tested, simultaneously, air in second oil pocket 712 of this oil cylinder that opens the cabin to be tested is successively through the second oil connection 714, second quick inserting joint 45, second connected pipes 44, 4th ball valve 34, oil return filter 14 is discharged from the oiling air filter 13 of this low-pressure reservoir unit 1.
Step 103, when this is to be tested open the cabin the piston 72 of oil cylinder do not move time, close this low pressure fuel pump 21.
Now, when observation plunger 73 no longer moves, illustrate that the hydraulic oil of the first oil pocket 711 fills, then close this low pressure fuel pump 21.
Step 104, opens this high pressure oil pump 51, and high pressure liquid force feed enters in the first oil pocket 711 of this oil cylinder that opens the cabin to be tested through the first connected pipes 41 in the fuel tank of this high pressure oil pump 51.
Wherein, in this step, high pressure liquid force feed enters in the first oil pocket 711 of this oil cylinder that opens the cabin to be tested through high pressure hose 52, second safety check 53, first ball valve 31, first connected pipes 41 successively in the fuel tank of this high pressure oil pump 51.
Step 105, when the first pressure gauge 43 show value reaches test pressure value, closes this high pressure oil pump 51.
Observe 1.25 times that whether data that the first pressure gauge 43 shows are hydraulic system working pressure, if so, pressure maintains 5 minutes and does not decline and illustrates that this oil cylinder that opens the cabin meets the requirements.
Step 106, check oil sealing leakage situation, open the second stop valve 54 after having checked, high pressure liquid force feed is delivered in the fuel tank of this high pressure oil pump 51 from the first connected pipes 41.
Wherein, in this step, high pressure liquid force feed is delivered in the fuel tank of this high pressure oil pump 51 through the first ball valve 31, second stop valve 54, high pressure hose 52 successively from the first connected pipes 41.
Step 107, pressure release terminates this second stop valve 54, first ball valve 31 of rear closedown and the 4th ball valve 34.
The pressure of the first pressure gauge 43 reduces to 0, is to discharge wherein pressure after off-test, goes to next step test.
Step 108, open this second ball valve 32 and the 3rd ball valve 33, open this low pressure fuel pump 21, low-pressure hydraulic oil enters in the second oil pocket 712 of this oil cylinder that opens the cabin to be tested from fuel tank, and the piston 72 of this oil cylinder that opens the cabin to be tested is pushed to the right-hand member of this oil cylinder that opens the cabin to be tested, meanwhile, the low-pressure hydraulic oil in the first oil pocket 711 of this oil cylinder that opens the cabin to be tested enters in the fuel tank of this low-pressure reservoir unit 1.
Wherein, in this step, after opening this low pressure fuel pump 21, low-pressure hydraulic oil from fuel tank successively through oil outlet tube 15, first stop valve 22, low pressure fuel pump 21, first safety check 23, 3rd ball valve 33, second connected pipes 44, second quick inserting joint 45, second oil connection 714 enters in the second oil pocket 712 of this oil cylinder that opens the cabin to be tested, simultaneously, low-pressure hydraulic oil in first oil pocket 711 of this oil cylinder that opens the cabin to be tested is successively through the first oil connection 713, first quick inserting joint 42, first connected pipes 41, second ball valve 32, oil return filter 14 enters in the fuel tank of this low-pressure reservoir unit 1.
Step 109, when this is to be tested open the cabin the piston 72 of oil cylinder do not move time, close this low pressure fuel pump 21.
Step 110, opens this high pressure oil pump 51, and high pressure liquid force feed enters in the second oil pocket 712 of this oil cylinder that opens the cabin to be tested through the second connected pipes 44 in the fuel tank of this high pressure oil pump 51.
Wherein, in this step, high pressure liquid force feed enters in the second oil pocket 712 of this oil cylinder that opens the cabin to be tested through high pressure hose 52, second safety check 53, the 3rd ball valve 33, second connected pipes 44 successively in the fuel tank of this high pressure oil pump 51.
Step 111, when the second pressure gauge 46 show value reaches test pressure value, closes this high pressure oil pump 51.
Wherein, observe 1.25 times that whether data that the second pressure gauge 46 shows are hydraulic system working pressure, if so, pressure maintains 5 minutes and does not decline and illustrates that this oil cylinder that opens the cabin meets the requirements.
Step 112, check oil sealing leakage situation, open the second stop valve 54 after having checked, high pressure liquid force feed is delivered in the fuel tank of this high pressure oil pump 51 from the second connected pipes 44.
Wherein, in this step, high pressure liquid force feed is delivered in the fuel tank of this high pressure oil pump 51 through the 3rd ball valve 33, second stop valve 54, high pressure hose 52 successively from the second connected pipes 44.
Step 113, pressure release terminates this second stop valve 54, second ball valve 32 of rear closedown and the 3rd ball valve 33.
The pressure of the second pressure gauge 46 reduces to 0, is to discharge wherein pressure after off-test, goes to next step test.
Step 114, open this first ball valve 31 and the 4th ball valve 34, open the 3rd stop valve 61 again, pressurized air in this source of compressed air enters in the first oil pocket 711 of this oil cylinder that opens the cabin to be tested, and the piston 72 of this oil cylinder that opens the cabin to be tested is pushed to the left end of this oil cylinder that opens the cabin to be tested, meanwhile, the low-pressure hydraulic oil in the second oil pocket 712 of the oil cylinder that opens the cabin to be tested enters in the fuel tank of this low-pressure reservoir unit 1.
Wherein, in this step, pressurized air in this source of compressed air enters in the first oil pocket 711 of this oil cylinder that opens the cabin to be tested through the 3rd stop valve 61, the 3rd safety check 62, first ball valve 31, first connected pipes 41, first quick inserting joint 42, first oil connection 713 successively, meanwhile, the low-pressure hydraulic oil in the second oil pocket 712 of the oil cylinder that opens the cabin to be tested enters in the fuel tank of this low-pressure reservoir unit 1 through the second oil connection 714, second quick inserting joint 45, second connected pipes 44, the 4th ball valve 34, oil return filter 14 successively.
Step 115, closes the 3rd stop valve 61 and the first stop valve 22, then closes this first ball valve 31 and the 4th ball valve 34.
In the present embodiment, adopt low pressure and mass flow oiling and high-potting, ensure that each step such as low pressure and mass flow oiling, high-potting and pressurized air oil extraction substep is coherent simultaneously and carry out, improve working efficiency, and minimizing connects the number of times tearing pipeline open, reduce fluid loss and pollution.
Although the foregoing describe embodiment of the present utility model, it will be understood by those of skill in the art that this only illustrates, protection domain of the present utility model is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present utility model and essence, can make various changes or modifications to these mode of executions, but these change and amendment all falls into protection domain of the present utility model.
Claims (7)
1. the pressure experimental device of the oil cylinder that opens the cabin, this oil cylinder that opens the cabin has one first oil pocket and is positioned at the second oil pocket of this first oil pocket left end, it is characterized in that, this pressure experimental device comprises low-pressure reservoir unit, low pressure fuel pump unit, control valve unit, oil connection unit and high pressure oil pump unit, and this low-pressure reservoir unit is for providing hydraulic oil needed for the pressure test of this oil cylinder that opens the cabin and reclaiming the hydraulic oil of discharging in this oil cylinder that opens the cabin;
This low pressure fuel pump unit is used for that the hydraulic oil in this low-pressure reservoir unit is delivered to this and opens the cabin in oil cylinder, and the entrance point of this low pressure fuel pump unit is connected with the oil outlet of this low-pressure reservoir unit, the outlet end of this low pressure fuel pump unit is connected with the top of this control valve unit;
This control valve unit is for controlling the flow direction of this open the cabin oily gas in the jar, hydraulic oil or high pressure oil, this control valve unit comprises the first group of ball valve and second group of ball valve that are connected in parallel, this first group of ball valve comprises the first ball valve and the second ball valve that are sequentially connected in series, this second group of ball valve comprises the 3rd ball valve and the 4th ball valve that are sequentially connected in series, and this second ball valve is all connected with the return opening of this low-pressure reservoir unit with the bottom of the 4th ball valve;
This oil connection unit is used for connecting fast high pressure oil pump unit and this oil cylinder show test pressure of opening the cabin, and this first oil pocket is connected between this first ball valve and second ball valve by this oil connection unit, this second oil pocket is connected between the 3rd ball valve and the 4th ball valve by this oil connection unit;
The test pressure that this high pressure oil pump unit opens the cabin needed for oil cylinder for improving this, the high pressure hose that this high pressure oil pump unit comprises high pressure oil pump and is connected with this high pressure oil pump, this high pressure hose is connected to the top of this first ball valve and the 3rd ball valve by a control loop, and a source of compressed air is connected to the top of this first ball valve and the 3rd ball valve by a controlling brancher.
2. pressure experimental device as claimed in claim 1, it is characterized in that, this low-pressure reservoir unit comprises a fuel tank, the water level gage be arranged on the inwall of this fuel tank, refuel air filter, oil return filter and the oil outlet tube that is arranged in this fuel tank, and this oiling air filter is arranged at the top of this fuel tank near side-walls;
This oil return filter is arranged at the top of the center region of this fuel tank, and the entrance point of this oil return filter is connected to the bottom of this second ball valve and the 4th ball valve, and the outlet end of this oil return filter is connected on this fuel tank.
3. pressure experimental device as claimed in claim 2, it is characterized in that, this low pressure fuel pump unit comprises a low pressure fuel pump, the entrance point of this low pressure fuel pump is connected with the outlet end of this oil outlet tube by one first stop valve, and the outlet end of this low pressure fuel pump is connected to the top of this first ball valve and the 3rd ball valve by one first safety check.
4. pressure experimental device as claimed in claim 3, it is characterized in that, this low pressure fuel pump unit also comprises a relief valve, and the entrance point of this relief valve is connected between this low pressure fuel pump and this first safety check, and the outlet end of this relief valve is connected to the entrance point of this oil return filter.
5. pressure experimental device as claimed in claim 3, it is characterized in that, this oil connection unit comprises be parallel to each other spaced first connected pipes and the second connected pipes, this first connected pipes is provided with some first quick inserting joints, and the left end of this first connected pipes is connected between this first ball valve and second ball valve, the right-hand member of this first connected pipes is connected with one first pressure gauge, and by one of them, this first quick inserting joint is connected with this first connected pipes this first oil pocket;
This second connected pipes is provided with some second quick inserting joints, and the left end of this second connected pipes is connected between the 3rd ball valve and the 4th ball valve, the right-hand member of this second connected pipes is connected with one second pressure gauge, and by one of them, this second quick inserting joint is connected with this second connected pipes this second oil pocket.
6. pressure experimental device as claimed in claim 5, it is characterized in that, control loop comprises the second safety check and the second stop valve that are connected in parallel, and the entrance point of this second safety check is connected on this high pressure hose, the outlet end of this second safety check is connected to the top of this first ball valve and the 3rd ball valve;
The entrance point of this second stop valve is connected to the top of this first ball valve and the 3rd ball valve, and the outlet end of this second stop valve is connected on this high pressure hose.
7. pressure experimental device as claimed in claim 6, it is characterized in that, this controlling brancher comprises the 3rd stop valve and the 3rd safety check that are sequentially connected in series, and the entrance point of the 3rd stop valve is connected with this source of compressed air, the outlet end of the 3rd safety check is connected to the top of this first ball valve and the 3rd ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420524610.7U CN204140547U (en) | 2014-09-12 | 2014-09-12 | Open the cabin the pressure experimental device of oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420524610.7U CN204140547U (en) | 2014-09-12 | 2014-09-12 | Open the cabin the pressure experimental device of oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204140547U true CN204140547U (en) | 2015-02-04 |
Family
ID=52417235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420524610.7U Withdrawn - After Issue CN204140547U (en) | 2014-09-12 | 2014-09-12 | Open the cabin the pressure experimental device of oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204140547U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465100A (en) * | 2014-09-12 | 2016-04-06 | 上海船厂船舶有限公司 | Pressure testing device and pressure testing method for cabin opening oil cylinder |
| CN109959478A (en) * | 2018-12-25 | 2019-07-02 | 中国北方车辆研究所 | A kind of pressure sensor rotary centrifugal force characteristic test system |
-
2014
- 2014-09-12 CN CN201420524610.7U patent/CN204140547U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465100A (en) * | 2014-09-12 | 2016-04-06 | 上海船厂船舶有限公司 | Pressure testing device and pressure testing method for cabin opening oil cylinder |
| CN105465100B (en) * | 2014-09-12 | 2017-06-27 | 上海船厂船舶有限公司 | Open the cabin the pressure experimental device and pressure test method of oil cylinder |
| CN109959478A (en) * | 2018-12-25 | 2019-07-02 | 中国北方车辆研究所 | A kind of pressure sensor rotary centrifugal force characteristic test system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202671187U (en) | High-pressure oil injection tool | |
| CN203767994U (en) | No-leakage unloading device for tank wagon | |
| CN105465100A (en) | Pressure testing device and pressure testing method for cabin opening oil cylinder | |
| CN204140547U (en) | Open the cabin the pressure experimental device of oil cylinder | |
| KR102502851B1 (en) | Method of checking a deaerating valve for an injector valve | |
| CN203337470U (en) | Metal hose pressure test bench | |
| CN202024059U (en) | Automatic thin oil filling device | |
| CN104865129A (en) | Skid-mounted multifunctional anti-blowout pipe pressure test system | |
| CN202691597U (en) | Residual air treatment device | |
| CN201535439U (en) | Carbon dioxide gas supercharging device | |
| CN202853858U (en) | Pressure water-injection type air tightness testing machine | |
| CN109459232A (en) | A kind of fuel tank automatic exhaust steam valve performance detection testing bench | |
| CN202729345U (en) | Pneumatic dedusting system | |
| CN202431485U (en) | Pipeline system for online oil injection of compressor | |
| CN104261150A (en) | Discharging system for ammonium nitrate tank truck | |
| CN203095596U (en) | Pressurization sealing type train loading arm | |
| CN204027784U (en) | A kind of device for detecting gasoline filter sealing | |
| CN208247964U (en) | A kind of automobile oil suction formula fuel tank | |
| CN201116272Y (en) | Air pressure greaser | |
| CN108758331B (en) | Oil return overpressure detection and relief device of hydraulic piston type natural gas compressor unit | |
| CN205350814U (en) | Butter adds notes pile -up valve | |
| CN202833109U (en) | Self-closing door oil pump | |
| CN105352237B (en) | Air conditioner oil adding and reducing device, air conditioner oil adding method and oil reducing method | |
| CN201539452U (en) | Automatic oil extracting device | |
| CN210241169U (en) | Compressor and hydrocarbon pump combined filling system of buried LPG storage and distribution station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150204 Effective date of abandoning: 20170627 |