CN104613045B - Nitrogen energy-storage hydraulic cylinder - Google Patents
Nitrogen energy-storage hydraulic cylinder Download PDFInfo
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- CN104613045B CN104613045B CN201510078822.6A CN201510078822A CN104613045B CN 104613045 B CN104613045 B CN 104613045B CN 201510078822 A CN201510078822 A CN 201510078822A CN 104613045 B CN104613045 B CN 104613045B
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- Prior art keywords
- nitrogen
- cylinder
- cylinder body
- piston
- piston rod
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/24—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with rigid separating means, e.g. pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
- F15B15/1452—Piston sealings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
- F15B15/1461—Piston rod sealings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Abstract
The present invention relates to technical field of mechanical equipment, in particular to a kind of nitrogen energy-storage hydraulic cylinder.It includes cylinder body, piston, piston rod, turnover oilhole and air inlet/outlet；Piston is arranged in cylinder body, and cylinder interior is divided into two cavitys；One end of piston rod is connected with piston, and the other end stretches out in one end of cylinder body；In two cavitys separated by piston in cylinder body, the cavity being provided with piston rod is oil pocket, and the cavity being not provided with piston rod is nitrogen chamber；Turnover oilhole is arranged on cylinder body, and one end connect with oil pocket, it is possible to oil pocket fuel feeding with can oily in oil pocket be discharged；Air inlet/outlet is arranged on cylinder body, and one end connects with nitrogen chamber, it is possible to supplies to nitrogen chamber and can be discharged by the nitrogen of nitrogen intracavity.Present invention achieves in the case of not consuming plant capacity, add the lifting force of equipment, further increase work efficiency and the radius of clean-up.
Description
Technical field
The present invention relates to technical field of mechanical equipment, in particular to a kind of nitrogen energy-storage hydraulic cylinder.
Background technology
The hydraulic pressure that hydraulic energy is changed into mechanical energy by hydraulic cylinder, do straight reciprocating motion (or oscillating motion) performs unit
Part.Its simple in construction, reliable operation.When realizing moving back and forth with it, deceleration device can be removed from, and there is no drive gap,
Stable movement, is therefore used widely in the hydraulic system of various machineries.
The pressure reduction on hydraulic cylinder power output and piston effective area and both sides thereof is directly proportional；Hydraulic cylinder is substantially by cylinder barrel and cylinder
Lid, piston and piston rod, sealing device, buffer unit form with exhaust apparatus.Buffer unit and exhaust apparatus regard concrete application
Depending on occasion, other devices are the most essential.
Much plant equipment are in the course of the work, its weight produced gravitional force when often having displacement, and this
Portion of energy consumption is unnecessary, is one of key factor reducing mechanical efficiency, and plant equipment to be damaged overcoming this energy
Work is completed while consumption.
Nitrogen is stable noble gas, starts to be widely used in fields such as household electrical appliances, furniture, automobiles.Nitrogen spring volume
Little, elastic force is big, stroke length, stable working, manufactures precision, length in service life (1,000,000 times), and spring curve is mild, and is not required to
Wanting pretension etc., it has the work that the common elastic assemblies such as metal spring, rubber and air cushion have been difficult to.
But large-scale nitrogen spring system manufacture difficulty is big, precision is high, and cost is high.
Also it is single use hydraulic cylinder all can produce certain drawback, no it is to say, no matter be used alone nitrogen spring
Optimal energy-conservation, labour-saving effect can be accomplished.
Summary of the invention
It is an object of the invention to provide a kind of nitrogen energy-storage hydraulic cylinder, to solve above-mentioned problem.
Provide a kind of nitrogen energy-storage hydraulic cylinder in an embodiment of the present invention, including cylinder body, piston, piston rod, turnover
Oilhole and air inlet/outlet；
Described piston is arranged in described cylinder body, and described cylinder interior is divided into two cavitys；
One end of described piston rod is connected with described piston, and the other end stretches out in one end of described cylinder body；
In two cavitys separated by described piston in described cylinder body, the cavity being provided with piston rod is oil pocket, does not set
The cavity putting piston rod is nitrogen chamber；
Described turnover oilhole is arranged on described cylinder body, and one end connects with described oil pocket, it is possible to described oil pocket fuel feeding and
Can be by the oil discharge in described oil pocket；
Described air inlet/outlet is arranged on described cylinder body, and one end connects with described nitrogen chamber, it is possible to supply to described nitrogen chamber
Gas and the nitrogen of described nitrogen intracavity can being discharged.
Further, nitrogen energy-storage hydraulic cylinder also includes standby cylinder；
Described standby cylinder is connected with described nitrogen chamber by described air inlet/outlet.
Further, described standby cylinder is ring-type；
Described cushion gas cylinder sleeve is located at one end of described cylinder body.
Further, described standby cylinder is provided with fire hose；
Described fire hose manually valve connects with described standby cylinder, it is possible to utilize the nitrogen in standby cylinder to carry out
Fire extinguishing.
Further, between described piston and described cylinder body, it is provided with sealing structure, is used for isolating described oil pocket with described
Nitrogen chamber.
Further, described sealing structure includes that hydraulic oil sealing gland, two support rings and two receive dirty ring；
Two described support rings are arranged on the both sides of described hydraulic oil sealing gland；
Described dirt ring of receiving is arranged on the described support ring side away from described hydraulic oil sealing gland.
Further, it is provided with High-pressure oil sealing between described piston rod and described cylinder body.
Further, nitrogen energy-storage hydraulic cylinder also includes explosion-proof valve；
Described explosion-proof valve connects with described nitrogen chamber, is used for preventing high temperature blast after nitrogen compression.
Further, described explosion-proof valve is relief valve.
Further, described cylinder body is provided with hanger away from one end of described oil pocket；
Described piston rod is provided with hanger away from one end of described piston.
The nitrogen energy-storage hydraulic cylinder that the present invention provides, have employed and two chambers in cylinder body are respectively set to different Jie
Matter, one is the hydraulic oil of liquid, and one is the nitrogen of gas, and hydraulic cylinder and nitrogen cylinder are namely merged into a cylinder body,
Both achieve original function, reduce again the volume of whole device.Piston rod is attached on equipment, cylinder body is arranged on
On standby base, motive force, whole device is provided not to use the power of the electromotor of equipment by nitrogen chamber to oil pocket, thus real
In the case of not consuming plant capacity now, add the lifting force of equipment, further increase work efficiency and the radius of clean-up.
Accompanying drawing explanation
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to specifically
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not paying creative work
Put, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of nitrogen energy-storage hydraulic cylinder of the present invention；
Fig. 2 is the structural representation of the standby cylinder of nitrogen energy-storage hydraulic cylinder of the present invention；
Fig. 3 is the structural representation of the sealing structure of nitrogen energy-storage hydraulic cylinder of the present invention.
Reference:
1: hanger 2: piston rod 3: turnover oilhole
4: oil pocket 5: piston 6: nitrogen chamber
7: standby cylinder 8: Air filling and discharging valves group 9: fire hose
10: hand-operated valve 11: High-pressure oil sealing 12: explosion-proof valve
13: dust seal 14: hydraulic oil sealing gland 15: support ring
16: receive dirty ring
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, technical scheme will be carried out below
Clear, complete description.Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.
Based on the embodiment in the present invention, the institute that those of ordinary skill in the art are obtained on the premise of not making creative work
There is other embodiments, broadly fall into the scope that the present invention is protected.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertically ",
Orientation or the position relationship of the instruction such as " level ", " interior ", " outward " they are based on orientation shown in the drawings or position relationship, merely to
Be easy to describe the present invention and simplifying describe rather than instruction or the hint device of indication or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicate or hint relative importance.
In describing the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " install ",
" be connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or connect integratedly
Connect；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can
To be the connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
As shown in drawings, the invention provides a kind of nitrogen energy-storage hydraulic cylinder, including cylinder body, piston 5, piston rod 2, turnover
Oilhole 3 and air inlet/outlet；
Described piston 5 is arranged in described cylinder body, and described cylinder interior is divided into two cavitys；
One end of described piston rod 2 is connected with described piston 5, and the other end stretches out in one end of described cylinder body；
In two cavitys separated by described piston 5 in described cylinder body, the cavity being provided with piston rod 2 is oil pocket 4, does not has
The cavity arranging piston rod 2 is nitrogen chamber 6；
Described turnover oilhole 3 is arranged on described cylinder body, and one end connects with described oil pocket 4, it is possible to described oil pocket 4 fuel feeding
With can by described oil pocket 4 oil discharge；
Described air inlet/outlet is arranged on described cylinder body, and one end connects with described nitrogen chamber 6, it is possible to described nitrogen chamber 6
Supply and the nitrogen in described nitrogen chamber 6 can be discharged.
Nitrogen is stable noble gas, starts to be widely used in fields such as household electrical appliances, furniture, automobiles.Nitrogen spring volume
Little, elastic force is big, stroke length, stable working, manufactures precision, length in service life (1,000,000 times), and spring curve is mild, and is not required to
Wanting pretension etc., it has the work that the common elastic assemblies such as metal spring, rubber and air cushion have been difficult to.But large-scale nitrogen bullet
Spring system manufacture difficulty is big, and precision is high, and cost is high.Then the characteristic using nitrogen makes the assembly of nitrogen and hydraulic system,
Nitrogen energy storage canister, i.e. nitrogen cylinder.The similar communicating vessel device using nitrogen cylinder to form with hydraulic cylinder, plays the equipment of equipment
The auxiliary power of lifting and the recoverable effect of gesture of decline.
The desired amount of hydraulic oil is injected in first passing through the oil pocket 4 of turnover oilhole 3 cylinder body, then by air inlet/outlet to nitrogen chamber
Inject the nitrogen of desirable pressure in 6, afterwards air inlet/outlet is sealed.
In use, piston rod 2 be connected weight, when weight is to 2 one pressure of piston rod, piston rod 2 drives
Piston 5 moves, and then the space of compressed nitrogen air cavity 6, and now, in turnover oilhole 3, hydraulic oil flows in oil pocket 4 from the external world, nitrogen
High pressure nitrogen in chamber 6 is compressed, and by nitrogen cushioning effect, is supported by many waste heat energies that the potential energy that weight declines produces further
Disappear, start accumulation of energy；When using this device to provide auxiliary power to the power set of lifting heavy, the elevated pressure nitrogen in nitrogen chamber 6
The pressure release of gas, promotes and moves on piston 5, drives and moves on piston rod 2, then gives one, the weight rising being connected with piston rod 2
Power, play auxiliary power effect.
The function of hydraulic cylinder and nitrogen cylinder is incorporated in a cylinder body by this device, is carried out by the nitrogen in nitrogen chamber 6
Accumulation of energy, to oil pocket 4 thrust, and then can not only use as auxiliary power, also have compressed the space occupancy of whole device, subtract
The little volume of device, reduces the weight of device.
It is preferred embodiment that nitrogen energy-storage hydraulic cylinder also includes standby cylinder 7；
Described standby cylinder 7 is connected with described nitrogen chamber 6 by described air inlet/outlet.
At one standby cylinder 7 of the outer connection in nitrogen chamber 6, be equivalent to expand the volume in nitrogen chamber 6, and then add nitrogen
The energy storage effect in chamber 6.
The volume size of standby cylinder 7 determines according to the stroke of piston 5, and volume can be selected bigger when stroke is bigger
Standby cylinder 7, when stroke is less, can select the standby cylinder 7 that volume is less.
Standby cylinder arranges Air filling and discharging valves group 8, is inflated to standby cylinder 7 by Air filling and discharging valves group 8.
It is preferred embodiment that described standby cylinder 7 is ring-type；
Described standby cylinder 7 is set in one end of described cylinder body.
Being set to ring-type by standby cylinder 7, its inner ring sleeve is located on cylinder body, namely standby cylinder 7 and cylinder body is formed
One entirety, and then make whole device volume not produce large change after being provided with standby cylinder 7, take full advantage of every bit
Space.
It is preferred embodiment to be provided with fire hose 9 on described standby cylinder 7；
Described fire hose 9 manually valve 10 connects with described standby cylinder 7, it is possible to utilize the nitrogen in standby cylinder 7
Gas is put out a fire.
Connecting fire hose 9 on standby cylinder 7, manually valve 10 controls the company of standby cylinder 7 and fire hose 9
Logical, and then the nitrogen in standby cylinder 7 can be used to put out a fire, and then add the function of this device so that it is use model
Enclose more extensive, apply diversification.
It is preferred embodiment to be provided with sealing structure between described piston 5 and described cylinder body, is used for isolating described oil
Chamber 4 and described nitrogen chamber 6.
Need tight sealing between piston 5 and cylinder body, to prevent nitrogen from entering into oil pocket 4 in nitrogen chamber 6, enter
And the energy storage capability of nitrogen cannot be ensured.
Be preferred embodiment, described sealing structure include 14, two support rings 15 of hydraulic oil sealing gland and two receive dirt
Ring 16；
Two described support rings 15 are arranged on the both sides of described hydraulic oil sealing gland 14；
Described dirt ring 16 of receiving is arranged on the described support ring 15 side away from described hydraulic oil sealing gland 14.
Two cavitys are fully sealed by hydraulic oil sealing gland 14, by complete for the hydraulic oil in the nitrogen in nitrogen chamber 6 and oil pocket 4
Isolation, it is ensured that the sealing in two chambeies.
Support ring 15 is set in the both sides of hydraulic oil sealing gland 14, by being supported protection between piston 5 and cylinder body, reduces
Piston 5, friction between hydraulic oil sealing gland 14 and cylinder body.
Owing to there being the turnover of hydraulic oil in oil pocket 4, in nitrogen chamber 6, there is the turnover of nitrogen, due to all can be with in two cavitys
The external world connects, therefore can be to causing certain pollution in cavity, and such as dust pollution etc., these pollutions likely can be to high pressure
Oil gas envelope 14 damages, and in the both sides sealing structure, namely support ring 15 is provided with away from the side of hydraulic oil sealing gland 14
Receive dirty ring 16, the pollutant such as the dust in the cavity of both sides are absorbed, it is to avoid the destruction to hydraulic oil sealing gland 14, improve close
The sealing of seal structure and service life.
It is preferred embodiment to be provided with High-pressure oil sealing 11 between described piston rod 2 and described cylinder body.
It is also required to well be sealed, in avoiding oil pocket 4 by High-pressure oil sealing 11 between piston rod 2 and cylinder body
Hydraulic oil overflows between piston rod 2 and cylinder body, in turn results in the leakage of hydraulic oil, further to environment.
For ensureing the service life of High-pressure oil sealing 11, it is to avoid it is damaged by external environment, can be at High-pressure oil sealing 11
Outside dust seal 13 is set, ensure that High-pressure oil sealing 11 will not be damaged by the pollutant such as dust by dust seal 13.
It is preferred embodiment that nitrogen energy-storage hydraulic cylinder also includes explosion-proof valve 12；
Described explosion-proof valve 12 connects with described nitrogen chamber 6, is used for preventing high temperature blast after nitrogen compression.
Explosion-proof valve 12 is set on air inlet/outlet or on standby cylinder 7, when the pressure of its interior nitrogen is excessive or warm
When spending high, explosion-proof valve 12 is opened, and discharges nitrogen, alleviates the pressure in nitrogen chamber 6, it is to avoid owing to pressure is excessive and occur quick-fried
Fried.
General when pressure is bigger, all can be along with high temperature, therefore, the explosion-proof valve 12 in the present embodiment have employed constant temperature and melts
The turnover trachea of air inlet/outlet or standby cylinder 7 is sealed by the material changed, and after temperature exceedes rated temperature, material melts
Changing, the nitrogen in nitrogen chamber 6 or standby cylinder 7 is discharged, and reduces pressure to nitrogen chamber 6 or standby cylinder 7, and then ensure that making of device
Use safety.
It is preferred embodiment that described explosion-proof valve 12 is relief valve.
Relief valve can be generally mounted on equipment or the pipeline of closed system according to the operating pressure automatic open close of system
Protection security of system.When equipment or manifold pressure exceed relief valve set pressure time, i.e. automatically turn on pressure release, it is ensured that equipment and
Pipeline internal medium pressure is setting under pressure, and protection equipment and pipeline prevent accident.
Therefore, according to the function of relief valve it can be seen that explosion-proof valve 12 relief valve can also to be used to carry out explosion-proof, i.e. when
When pressure is excessive, automatically turn on pressure release.
It is preferred embodiment that described cylinder body is provided with hanger 1 away from one end of described oil pocket 4；
Described piston rod 2 is provided with hanger 1 away from one end of described piston 5.
It is connected, at cylinder body away from oil pocket 4 with the weight of auxiliary by arranging hanger 1 at piston rod 2 away from one end of piston 5
One end hanger 1 is set, be allowed to fixing.
By the setting of two hangers 1, can very simply this device be connected with needing the device carrying out auxiliary power.
It is pointed out that and need the connected mode carrying out the device of auxiliary power can be hanger 1, but it is not only
Being confined to hanger 1, it can also is that other structures, as being suspension hook, as being fixing seat etc., as long as can be by this device
It is connected with needing the device carrying out auxiliary power.
The most above-mentioned it can be seen that the present invention is the most energy-conservation to open new approach, swing arm is energy-conservation.Do not affecting equipment
In the case of the work of other energy conserving systems, it is that mechanical system is energy-conservation further, the unnecessary energy consumption that when reducing work, equipment produces.
The present invention typically can be made up of following parts:
Cylinder body, control valve, hanger 1, integrating control block.
Dissimilar according to plant equipment, by the nitrogen energy-storage hydraulic cylinder of the present invention as desired by installing hanger 1
Or other rigid connection are arranged on equipment, after fixing, control air inlet/outlet to the nitrogen in cylinder body by integrating control block
Air cavity 6 pressurizes, and force value needs to regulate voluntarily according to equipment.
Device operation and principle are as follows:
Nitrogen energy-storage hydraulic cylinder is connected with the hydraulic system of equipment by control valve, can control the hydraulic pressure in oil pocket 4 strong
Degree, the hydraulic pressure in oil pocket 4 interacts with the stable air pressure in nitrogen chamber 6.High pressure in elongation process, in nitrogen chamber 6
Pressure by piston 5 sealing gland end, is transmitted by nitrogen to the other end, and plant equipment provides auxiliary power, when high power work, keeps away
Exempt from electromotor because of the problem crossing sub operation generation over-emitting black exhaust.
In contraction process, in the case of not affecting original equipment potential energy recovery system and flow regenerative system, pass through nitrogen
Many waste heat energies that potential energy produces are offset by gas cushioning effect further, and move by increasing hydraulic pressure to control valve to oil pocket 4
Power, reduces the loss to equipment components, increases service life.
The safety problem of failure of apparatus:
Nitrogen chamber 6 is independent sealed environment, but when life-time service causes hydraulic oil sealing gland 14 aging, nitrogen can enter
Overflow in oil pocket 4 and at cylinder rod, do not interfere with the hydraulic system of equipment itself.And after High-pressure oil sealing 11 is aging, will not
Affect the pressure in nitrogen chamber 6, only can spillage force feed at cylinder rod at work, do not interfere with work.
Either way will not cause danger.Can be connected with equipment by device, oil cylinder oil spilling is very easy to find, can be in time by dress
Put dismounting and change High-pressure oil sealing 11.Even if failing to find in time to cause failure of apparatus, nitrogen overflows and does not also interfere with equipment self
Security system, the nitrogen of spilling nor affects on environment, and device has only to dismounting and change accessory and just can be continuing with, and does not has safety
Hidden danger.
The present invention is in operation process, and the energy consumption that the gravitional force of equipment causes gets the greatest degree of optimization, no
Consume extra mechanical energy, both save energy, the dynamic loading of heating and floating bearing of decreasing again hydraulic system etc..At machine
On the premise of heavy phase is same, job stabilization improves, and this has very important meaning to performance, saving fuel.
The present invention can reduce losses of potential energy further, reduce heat energy release, minimizing carbon emission, improves mechanical efficiency, increases
Parts service life, reduce Fuel Dosage, reduce job costs.Present configuration is simple, independent convenient, for many plant equipment
Technological progress and conservation of natural environment contribute.
The nitrogen energy-storage hydraulic cylinder that the present invention provides, have employed and two chambers in cylinder body are respectively set to different Jie
Matter, one is the hydraulic oil of liquid, and one is the nitrogen of gas, and hydraulic cylinder and nitrogen cylinder are namely merged into a cylinder body,
Both achieve original function, reduce again the volume of whole device.Piston rod 2 is attached on equipment, cylinder body is arranged on
On the base of equipment, motive force, whole device is provided not to use the power of the electromotor of equipment to oil pocket 4 by nitrogen chamber 6, from
And realize in the case of not consuming plant capacity, add the lifting force of equipment, further increase work efficiency and work
Radius.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extent
The present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends on
So the technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is entered
Row equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (6)
1. a nitrogen energy-storage hydraulic cylinder, it is characterised in that include cylinder body, piston, piston rod, turnover oilhole and air inlet/outlet；
Described piston is arranged in described cylinder body, and described cylinder interior is divided into two cavitys；
One end of described piston rod is connected with described piston, and the other end stretches out in one end of described cylinder body；
In two cavitys separated by described piston in described cylinder body, the cavity being provided with piston rod is oil pocket, is not provided with living
The cavity of stopper rod is nitrogen chamber；
Described turnover oilhole is arranged on described cylinder body, and one end connects with described oil pocket, it is possible to described oil pocket fuel feeding and can
By the oil discharge in described oil pocket；
Described air inlet/outlet is arranged on described cylinder body, and one end connects with described nitrogen chamber, it is possible to described nitrogen chamber supply and
The nitrogen of described nitrogen intracavity can be discharged；
It is provided with sealing structure between described piston and described cylinder body, is used for isolating described oil pocket and described nitrogen chamber；
Described sealing structure includes that hydraulic oil sealing gland, two support rings and two receive dirty ring；
Two described support rings are arranged on the both sides of described hydraulic oil sealing gland；
Described dirt ring of receiving is arranged on the described support ring side away from described hydraulic oil sealing gland；
Also include standby cylinder；
Described standby cylinder is connected with described nitrogen chamber by described air inlet/outlet；
It is provided with fire hose on described standby cylinder；
Described fire hose manually valve connects with described standby cylinder, it is possible to utilize the nitrogen in standby cylinder to go out
Fire.
Nitrogen energy-storage hydraulic cylinder the most according to claim 1, it is characterised in that described standby cylinder is ring-type；
Described cushion gas cylinder sleeve is located at one end of described cylinder body.
Nitrogen energy-storage hydraulic cylinder the most according to claim 1, it is characterised in that set between described piston rod and described cylinder body
It is equipped with High-pressure oil sealing.
Nitrogen energy-storage hydraulic cylinder the most according to claim 1, it is characterised in that also include explosion-proof valve；
Described explosion-proof valve connects with described nitrogen chamber, is used for preventing high temperature blast after nitrogen compression.
Nitrogen energy-storage hydraulic cylinder the most according to claim 4, it is characterised in that described explosion-proof valve is relief valve.
6. according to the nitrogen energy-storage hydraulic cylinder described in any one of claim 1-5, it is characterised in that described cylinder body is away from described oil
The one end in chamber is provided with hanger；
Described piston rod is provided with hanger away from one end of described piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078822.6A CN104613045B (en) | 2015-02-13 | 2015-02-13 | Nitrogen energy-storage hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078822.6A CN104613045B (en) | 2015-02-13 | 2015-02-13 | Nitrogen energy-storage hydraulic cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104613045A CN104613045A (en) | 2015-05-13 |
| CN104613045B true CN104613045B (en) | 2016-08-24 |
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Family Applications (1)
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| CN204458640U (en) * | 2015-02-13 | 2015-07-08 | 樊硕 | Nitrogen energy-storage hydraulic cylinder |
| CN107917826A (en) * | 2016-10-09 | 2018-04-17 | 李进 | Protect gas sampler and sampling method |
| CN106429944B (en) * | 2016-11-01 | 2019-02-15 | 沈阳双壹市政工程有限公司 | A kind of gas lifting jack for excavator |
| CN106704273A (en) * | 2017-02-07 | 2017-05-24 | 成都捷冠科技有限公司 | Safe and durable energy accumulator |
| CN109340211A (en) * | 2018-12-03 | 2019-02-15 | 江苏丰东热技术有限公司 | A kind of single-acting automatic reciprocating air cylinder and automatic reciprocating air cylinder system |
| CN110594236B (en) * | 2019-09-10 | 2021-04-27 | 长沙理工大学 | Cylinder bottom energy storage type hydraulic cylinder |
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| JP2001020910A (en) * | 1999-07-02 | 2001-01-23 | Katsuhiko Saito | Pressure device |
| JP5317041B2 (en) * | 2006-11-10 | 2013-10-16 | 東洋紡株式会社 | Poly-γ-L-glutamic acid cross-linked product, process for producing the same, and hydrogel comprising the same |
| JP5040338B2 (en) * | 2007-02-06 | 2012-10-03 | Ｎｏｋ株式会社 | Sealing device and hydraulic cylinder |
| JP2010286014A (en) * | 2009-06-09 | 2010-12-24 | Nok Corp | Hydraulic cylinder |
| CN102003429A (en) * | 2010-10-26 | 2011-04-06 | 南通久久液压机械制造有限公司 | Nitrogen cylinder for plate shearing machine |
| CN102454657A (en) * | 2010-10-28 | 2012-05-16 | 张宏如 | Pressure-controlled zero/full-load self-adapting oil vapor hanging cylinder |
| CN202468543U (en) * | 2012-02-24 | 2012-10-03 | 常州轩达液压机电设备有限公司 | Buffer device for vertical roller mill |
| CN203130633U (en) * | 2013-01-28 | 2013-08-14 | 江苏恒立高压油缸股份有限公司 | Boat davit oil cylinder |
| CN204458640U (en) * | 2015-02-13 | 2015-07-08 | 樊硕 | Nitrogen energy-storage hydraulic cylinder |
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