CN207568964U - A kind of high-volume hydraulic device - Google Patents
A kind of high-volume hydraulic device Download PDFInfo
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- CN207568964U CN207568964U CN201721390866.3U CN201721390866U CN207568964U CN 207568964 U CN207568964 U CN 207568964U CN 201721390866 U CN201721390866 U CN 201721390866U CN 207568964 U CN207568964 U CN 207568964U
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Abstract
The utility model provides a kind of high-volume hydraulic device, and including hydraulic pipeline, hydraulic servo oil cylinder, servo actuator, hydraulic servo oil cylinder is connect with servo actuator by hydraulic pipeline；Hydraulic pipeline includes the different first pipe of two diameters, second pipe, and second pipe is set in inside first pipe；One end of first pipe is fixedly connected with flange, and the other end is set in the outside of second pipe one end to realize that second pipe moves back and forth, and the other end of second pipe is fixedly connected with flange.Except this further includes the sealing system for being arranged on first pipe and second pipe and being mutually arranged between gap.The device meets the test requirements document of hydraulic hard tube big flow and movement during servo loading, by being applied in hydraulic hard tube for the sealing system creativeness of piston rod, no matter from practical performance, or appearance design angle, connecting and composing for hydraulic hose is all significantly better than, reduces cost of investment to the greatest extent.
Description
Technical field
The utility model is related to the design field of hydraulic device, in particular to a kind of high-volume hydraulic device.
Background technology
Hydraulic pipeline is the pipeline that each section Hydraulic Elements are connected in hydraulic system, the electric wire in similar circuit, only not
Cross be transmitted medium be not electricity but hydraulic oil, using hydraulic oil as medium so as to drive each Hydraulic Elements progress work
Make, just as the blood vessel in human body by blood from heart is transported to each organ.
Field and range involved by hydraulic pipeline be it is quite extensive, it is all using hydraulic pressure as output power it is local all
Hydraulic pipeline, such as large-scale wind turbine gearbox hydraulic pipeline, industrial speed reducer hydraulic pipeline, engineering machinery hydraulic pipe can be used
Road, harbour machinery hydraulic pipeline, ship windlass hydraulic pipeline, hoist engine hydraulic pipeline, marine oil platform hydraulic pipeline, with
And field of aerospace etc..The application of hydraulic system can from high-precision aerospace industries to most basic speed reducer industry
Enough it is related to, therefore the hydraulic pipeline in this system is to carry one of most important work, is not in certain specific industries
Allow the problem of any occur, even it is only small the defects of also result in very serious consequence, impact caused by that
Power may be fatal, and just imagine that also what can be more prior than life, therefore the safety of hydraulic pipeline is to have to
It ensures.
Hydraulic servo oil cylinder has the characteristics that thrust is big, light weight, integrated level are high, dynamic response is fast, control accuracy is high,
It is used widely in the fields such as engineering machinery, metallurgical machinery, ship, aerospace, robot.Servo actuator is watched as hydraulic pressure
The executing agency of oil cylinder is taken, the hydraulic energy from hydraulic power source is converted to mechanical energy, the execution acted.In hydraulic servo plus
In loading system, the hydraulic pipeline of big flow is often used, is usually realized by hard tube, but is that cannot move the shortcomings that hard tube
Dynamic, this just can not meet during servo loading experiment, should move, again the test requirements document of high-volume hydraulic oil.Now
Hydraulic pipeline in the market can realize the only hose of locomotive function, but the maximum stream flow of single hose only has 600L/min,
Two, 30 hoses must be needed by realizing the flow of liters up to ten thousand.Tens hoses not only increase installation space, give installation band
It is inconvenient to come, and also adds the leakage point of hydraulic oil, leaves great security risk, and increase in the connection procedure of hose
No matter the triviality of operation from visual appearance or from practical performance, is all had a greatly reduced quality, this tests servo loading
For be infeasible.
In view of this, it is special to propose the utility model.
Utility model content
The purpose of this utility model is to provide a kind of hydraulic device of big flow, the hydraulic device can be completed to flow greatly
Measure hydraulic line system foundation, of simple structure and strong practicability, effectively solve high-volume hydraulic pipeline hard tube movement and
Sealing problem.
In order to realize the above-mentioned purpose of the utility model, spy uses following technical scheme：
The utility model embodiment provides a kind of high-volume hydraulic device, including：
Hydraulic pipeline, hydraulic servo oil cylinder, servo actuator, hydraulic servo oil cylinder pass through hydraulic pipeline with servo actuator
Connection；
Hydraulic pipeline includes the different first pipe of two diameters, second pipe, and second pipe is set in first pipe
Portion；
One end of first pipe is fixedly connected with flange, and the other end is set in the outside of second pipe one end to realize second
Pipeline moves back and forth, and the other end of second pipe is fixedly connected with flange.
The hydraulic device of big flow is the basis for carrying out servo loading experiment, in the utility model, hydraulic servo oil cylinder
It is connect with servo actuator by hydraulic pipeline, and hydraulic pipeline is then made of two different hard tubes of diameter, and mutually
It is superposed, main purpose is still in order to realize the reciprocating motion of pipeline.This just meets and is up to inside hydraulic pipeline simultaneously
Ten thousand liters of hydraulic fluid flow rate and hydraulic oil hard tube does removable requirement when carrying out servo loading experiment.
Further, it further includes and is arranged on the sealing system that first pipe and second pipe are mutually arranged between gap.
In the utility model, the gap seals between hydraulic pipeline employ the form of piston rod to realize, second pipe
Reciprocal operation in first pipe is equivalent to the piston rod of reciprocating motion in the utility model.As main pressure-bearing original paper
One of, sealing system one-way bearing pressure, it is larger to bear pressure, is directly contacted with hydraulic oil.With pressurize under static state
It can stablize, the advantages that pressure-bearing in motion state is high, and sealing performance is strong, and friction factor is small, and anti-plasticating capacity is strong.
Further, sealing system includes the dustband of the extraneous dust of isolation.
In the utility model, dustband uses lips type dustband.Outer lip plays dustproof effect, keeps second pipe outer wall table
Face is clean, and epipharynx is equivalent to seal lip.When second pipe is overhanging, the oil on second pipe surface layer is sticked to by primary seal circle
Film is scraped by the epipharynx (seal lip) of double-lipped dustband, one layer is thus retained between primary seal circle and dustband
Oil film plays lubricating action, improves the service life of sealing ring.
Further, sealing system includes the support ring for being used to support second pipe.
Support ring is mounted on the outer wall of second pipe, and is arranged on the inside of seal assembly, and main function is supporting movement
Second pipe in the process prevents the pressure-bearing that pipeline out of plumb stress is brought to seal assembly uneven, causes sealing effect poor
With service life it is short the problems such as.The effect of support ring also makes the Liang Gen pipeline center being overlapped mutually coaxial, is moved in second pipe
It is unlikely to eccentric phenomena occur in the process, causes a large amount of leakages of hydraulic oil.
Further, sealing system further include be arranged horizontally at it is close between the dustband and the support ring
Sealing assembly.
Core element of the seal assembly as sealing system is the key components and parts moved back and forth in executing agency, not only
It is related to leakage problem, but also performance and the service life that a whole set of hydraulic device will be influenced, specifically by sealing structure and sealing ring
Composition.
Further, the sealing ring of seal assembly is one of three kinds of forms of Y-shaped ring, this spy's envelope and V-type circle.
In traditional handicraft, the section form and material of piston rod packing are more.In the utility model, according to different work
Environment selects the seal assembly of different cross section form and material to be sealed high-volume hydraulic pipeline, to ensure in the form of hard tube
Two be overlapped mutually airtight performance of the hydraulic oil pipeline in moving process.
Y-type seal ring is to be deformed by the lip of sealing ring by action of hydraulic force, and lip is made to be adjacent to sealing surface and is sealed,
Hydraulic coupling is higher, and lip is pasted tighter, and with the ability compensated automatically after abrasion.The same with piston rod, second pipe is located at
First pipe sealing is relatively more using Y-shaped ring, and it is support ring+y-type seal ring+dustband that sealing, which often has form, at this.
Si Te envelopes are made of a low friction filled polytetrafluoroethylene cascade ring and an O-shaped rubber elastomer.Si Te is sealed
It is one-way sealing, is generally used for piston rod packing, be also used for the piston seal of single-acting sometimes, O-ring is in inside, suitable for height
Pressure system oil cylinder.It is the first choice of servo-cylinder sealing since the coefficient of kinetic friction is close in the utility model, using two this spies
Envelope fully achieves zero leakage, and general type is：Support ring+this spy's envelope+two-way dustband.
V-type circle sealing element is widely used in sealing at piston rod, and V-arrangement and a kind of allusion quotation is presented in the section of v-ring
The lip-type packing of type, friction of motion resistance ratios y-shaped ring is big, but sealing performance is reliable, service life is long, when letting out
During leakage, it only can adjust pressure ring or washer and sealing ring need not be replaced, it, equally must be by the recessed of sealing ring when v-ring is installed
Mouthful towards the high pressure side of working media.V-type circle has two kinds of folder fabric rubber and polyvinyl chloride, presss from both sides fabric rubber v-ring
Pressure-resistant performance and wear-resisting property it is better than polyvinyl chloride v-ring.And polyvinyl chloride V sealing rings have excellent sealing
Performance.So if by the sealing ring of both unlike materials, alternating assembles use, just can give full play to respective characteristic,
Obtain best sealing effect.
In the utility model, for different working environments, the seal assembly in sealing system is targetedly set, in reality
The requirement of zero leakage can be reached in the operation of border.
Further, first pipe and the material of second pipe are metal.
Metal greatly strengthens the mechanical strength of pipeline, height can be born in actual mechanical process as hard tube material
The hydraulic shock of intensity avoids the occurrence of leakage.
Further, first pipe and the material of second pipe are the one of which in copper, stainless steel, 16MnR.
Hydraulic pipeline with copper, stainless steel, 16MnR etc. for material, it is fine quality and will not get rusty, larger pressure can be born
Power.Service life is long, widely used, has very strong universality.
Further, first pipe and second pipe are used with flange is welded and fixed form.
Flanged joint has a popularity of itself as connection mode most common in pipeline, the maintenance of parts and more
It changes with certain eurytopicity.It is connected using welding form, the stability of system and device can be enhanced, while also allow for installing.
The described device that the utility model embodiment provides is simple in structure, easy to operate, and stability is high, and high safety has
Effect solves hydraulic hard tube movement and sealing problem in servo loading experiment.
In addition to providing a kind of hydraulic device of big flow, the utility model embodiment additionally provides a kind of hydraulic device and realizes
The method of high-volume hydraulic pipeline, includes the following steps：
The end face of flange of first pipe with hydraulic servo oil cylinder is fixed, second pipe is inserted into the end head of first pipe
Set up separately and put sealing system, second pipe is sheathed on to the inside of first pipe, by the end face of flange of second pipe and servo start
Device is connected.
The implementation steps of this method are easy to operate, highly practical.The end face of flange of first pipe is connect with hydraulic cylinder, is made
Hydraulic oil enters pipe-line system in oil cylinder；Sealing before second pipe is inserted into first pipe end is set, ensure that system is whole
The sealing performance of body；Second pipe is sheathed on inside first pipe, being overlapped mutually between pipeline is realized, promotes normal
During operation, hard tube can move back and forth, and meet the actual motion requirement of servo actuator.
The method that the hydraulic device that the utility model embodiment provides realizes high-volume hydraulic pipeline, meets servo loading
Requirement during experiment by the creative hydraulic hard tube for being applied to superposition and being arranged of the sealing system of piston rod, reduces
Hidden danger is leaked, enhances security performance.Either from practical performance or appearance design angle, it is all significantly better than hydraulic hose
Connect and compose, reduce cost of investment to the greatest extent.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described.
Fig. 1 is the structure diagram of the high-volume hydraulic device in the utility model embodiment 1；
Reference numeral：
1- hydraulic servo oil cylinders；2- first pipes；
3- second pipes；4- sealing systems；
5- seal assemblies；6- servo actuators.
Specific embodiment
The embodiment of the utility model is described in detail below in conjunction with embodiment, but those skilled in the art
It will be understood that the following example is merely to illustrate the utility model, and it is not construed as limitation the scope of the utility model.Embodiment
In the person that is not specified actual conditions, the condition suggested according to normal condition or manufacturer carries out.Life is not specified in agents useful for same or instrument
Manufacturer person is produced, is the conventional products that can be obtained by commercially available purchase.
Embodiment 1
Hydraulic device realizes that the carrying out practically process of high-volume hydraulic line process is as follows：
First, end face of flange of the material for the first pipe 2 of copper with hydraulic servo oil cylinder 1 is fixed, be fixed by bolts
Form connects the flange of first pipe 2 with the flange of hydraulic servo oil cylinder 1, and during experiment, hydraulic servo oil cylinder is to liquid
The hydraulic oil of big flow is conveyed in pressure pipeline, due to being hard tube connection, reduces installation space and leakage point, improves safety
Energy.
Secondly, at the 3 light pipe position of second pipe for being similarly copper pipe, sealing system is set before first pipe 2 is inserted into
4.Sealing system 4 in the present embodiment includes dustband, support ring and seal assembly 5.Set ordering is from outside to inside
Generally dustband, seal assembly and support ring.Dustband is set to the outermost in gap between first pipe and second pipe,
The extraneous dust of isolation enters hydraulic system；Support ring is set to the outer wall of second pipe, and is set to the most inner side of sealing system,
It is used to support the second pipe for substituting conventional piston bar.
The sealing ring of seal assembly 5 is Y-shaped ring, is deformed by the lip of sealing ring by action of hydraulic force, is adjacent to lip
Sealing surface is sealed, and hydraulic coupling is higher, and lip is pasted tighter, and with the ability compensated automatically after abrasion.
Again, the second pipe for setting sealing system is sheathed on to the inside for stating first pipe, in course of normal operation
In, you can to realize reciprocating movement of the hydraulic hard tube in an other hard tube, solve the irremovable practical challenges of hard tube.
Finally, the end face of flange of second pipe with servo actuator 6 is connected, test specimen is carried out by servo actuator 6
Load test, stroke are also unrestricted to a certain extent.First pipe and the flanged joint of second pipe are using welding shape
Formula, shown in concrete structure as attached drawing 1.
Embodiment 2
Hydraulic device realizes that the carrying out practically process of high-volume hydraulic line process is as follows：
First, end face of flange of the material for the first pipe 2 of stainless steel is fixed with hydraulic servo oil cylinder 1, using bolt
Fixed form connects the flange of first pipe 2 with the flange of hydraulic servo oil cylinder 1, during experiment, hydraulic servo oil cylinder
The hydraulic oil of big flow is conveyed into hydraulic pipeline, due to being hard tube connection, reduces installation space and leakage point, improves peace
Full performance.
Secondly, at the 3 light pipe position of second pipe for being similarly stainless steel tube, the setting sealing system before first pipe is inserted into
System 4.Sealing system 4 in the present embodiment includes dustband, support ring and seal assembly 5.Set ordering from outside to
Interior generally dustband, seal assembly and support ring.Dustband is set between first pipe 2 and second pipe 3 gap most
Outside completely cuts off extraneous dust and enters hydraulic system；Support ring is set to the outer wall of second pipe, and is set to sealing system most
Inside is used to support the second pipe for substituting conventional piston bar.
The sealing ring of seal assembly 5 is this spy's envelope, this spy's envelope is by a low friction filled polytetrafluoroethylene cascade ring and one
A O-shaped rubber elastomer composition.Si Te envelopes are one-way sealings, are generally used for piston rod packing, are also used for the work of single-acting sometimes
Plug sealing, O-ring is in inside, suitable for high-pressure system oil cylinder.It is servo since the coefficient of kinetic friction is close in the utility model
The first choice of cylinder seal, using two, this spy's envelope fully achieves zero leakage.
Again, the second pipe 3 for setting sealing system is sheathed on to the inside for stating first pipe 2, in normal operating
Cheng Zhong, you can to realize reciprocating movement of the hydraulic hard tube in an other hard tube, it is irremovable practical difficult to solve hard tube
Topic.
Finally, the end face of flange of second pipe 3 with servo actuator is connected, test specimen is added by servo actuator
Experiment is carried, stroke is also unrestricted to a certain extent.First pipe 2 and the flanged joint of second pipe 3 are using welding shape
Formula.
Although illustrate and describing the utility model with specific embodiment, it will be appreciated that without departing substantially from this reality
Many other change and modification can be made in the case of novel spirit and scope.It is, therefore, intended that in appended power
Profit requirement includes belonging to all such changes and modifications in the scope of the utility model.
Claims (8)
1. a kind of high-volume hydraulic device, which is characterized in that including：Hydraulic pipeline, hydraulic servo oil cylinder, servo actuator, institute
Hydraulic servo oil cylinder is stated to connect by the hydraulic pipeline with the servo actuator；
The hydraulic pipeline includes the different first pipe of two diameters, second pipe, and the second pipe is set in described the
Inside one pipeline；
One end of the first pipe is fixedly connected with flange, and the other end is set in the outside of second pipe one end to realize second
Pipeline moves back and forth, and the other end of second pipe is fixedly connected with flange.
2. hydraulic device according to claim 1, which is characterized in that further include sealing system, the sealing system setting
Between the gap being mutually arranged in first pipe and second pipe.
3. hydraulic device according to claim 2, which is characterized in that the sealing system includes the anti-of the extraneous dust of isolation
Konisphere.
4. hydraulic device according to claim 3, which is characterized in that the sealing system includes being used to support second pipe
Support ring.
5. hydraulic device according to claim 4, which is characterized in that the sealing system further includes seal assembly, described
Seal assembly is arranged horizontally between the dustband and the support ring.
6. hydraulic device according to claim 5, which is characterized in that the sealing ring of the seal assembly is Y-shaped ring, Si Te
One of envelope and three kinds of forms of V-type circle.
7. hydraulic device according to claim 1, which is characterized in that the first pipe and second pipe for metal the
One pipeline and second pipe.
8. hydraulic device according to claim 1, which is characterized in that the first pipe and second pipe are adopted with flange
With being welded and fixed form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721390866.3U CN207568964U (en) | 2017-10-25 | 2017-10-25 | A kind of high-volume hydraulic device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721390866.3U CN207568964U (en) | 2017-10-25 | 2017-10-25 | A kind of high-volume hydraulic device |
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| Publication Number | Publication Date |
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| CN207568964U true CN207568964U (en) | 2018-07-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630848A (en) * | 2017-10-25 | 2018-01-26 | 北京富力通达科技有限公司 | A kind of high-volume hydraulic device and its implementation |
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2017
- 2017-10-25 CN CN201721390866.3U patent/CN207568964U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630848A (en) * | 2017-10-25 | 2018-01-26 | 北京富力通达科技有限公司 | A kind of high-volume hydraulic device and its implementation |
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