CN104847711B - Hydraulic servomotor - Google Patents
Hydraulic servomotor Download PDFInfo
- Publication number
- CN104847711B CN104847711B CN201510280443.5A CN201510280443A CN104847711B CN 104847711 B CN104847711 B CN 104847711B CN 201510280443 A CN201510280443 A CN 201510280443A CN 104847711 B CN104847711 B CN 104847711B
- Authority
- CN
- China
- Prior art keywords
- rear end
- end cap
- chamber
- cylinder body
- cylinder
- 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.)
- Active
Links
Classifications
-
- 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
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections 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
- 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
- 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
- F15B15/1438—Cylinder to end cap assemblies
-
- 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
-
- 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
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/405—Housings
- F15B2201/4056—Housings characterised by the attachment of housing components
-
- 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
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/415—Gas ports
- F15B2201/4155—Gas ports having valve means
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses a hydraulic servomotor comprising a piston rod, a front end cover, rear end cover, and a cylinder block. The front end cover and the rear end cover sleeve a shank of the piston rod. The cylinder block is tubular. Two ends of the cylinder block are connected with the front end cover and the rear end cover, respectively. A piston part of the piston rod is slidably connected with the cylinder block. The hydraulic servomotor further comprises an energy accumulator cylinder sleeving the cylinder block and a circular piston; the energy accumulator cylinder is tubular and is coaxial to the cylinder block; two ends of the energy accumulator cylinder are connected with the front end cover and the rear end cover, respectively; the inner side of the piston is slidably connected with the outer side of the cylinder block; the outer side of the piston is slidably connected with the inner side of the energy accumulator cylinder. The energy accumulator cylinder sleeves the cylinder block, thus the whole structure of the hydraulic servomotor is more compact; by the use of the hydraulic servomotor, the problem that the energy accumulator uses much space of the hydraulic servomotor is effectively solved.
Description
Technical field
A kind of the present invention relates to steam turbine technology field, more particularly, it relates to servomotor.
Background technology
Servomotor, also known as hydraulic servo motor, is the actuating unit of general hydraulic means, servomotor advantage is very many, by
Have that inertia is little, driving force is big, action is fast during using and the energy low remarkable advantage of consumption, so being widely used.
Servomotor of the prior art is by an oil cylinder and one or more hydraulic valve collection of hanging over outward oil cylinder side
In bulk is constituted.In prior art, due to the needs of structure, typically by servo valve, electromagnetic valve, control servomotor switch electromagnetic valve and
Unloader is integrated on several integrated packages, has the duct of each hydraulic valve connection in integrated package.Carry out oil between integrated package
Road connects, and each hydraulic valve carries out oil circuit with integrated package and is connected.Integrated package with one group of upper end cover being bolted to oil cylinder and under
On end cap.Servomotor of the prior art typically also needs to install an accumulator, and accumulator also contains one by accumulator
Chamber is divided into the accumulator piston of two chambers.In the two chambers that accumulator piston is separated out, a chamber is connected with inflator
Logical, another chamber is that ante-chamber connects with the rod chamber in oil cylinder.
But the discovery that studies for a long period of time through inventor, because accumulator is generally pylindrical, result in whole servomotor
Seem very too fat to move, and the installation of accumulator limits the installation of other hydraulic valves, further make whole servomotor structure multiple
Miscellaneous, the maintenance cost in later stage is high.
In sum, how to efficiently solve the accumulator in servomotor to take up room big problem, be current this area
Technical staff's urgent problem.
Content of the invention
In view of this, it is an object of the invention to provide a kind of servomotor, this servomotor can efficiently solve servomotor
In accumulator take up room big problem.
In order to achieve the above object, the present invention provides following technical scheme：
A kind of servomotor, drive end bearing bracket including piston rod, outside the bar portion that is enclosed within described piston rod, rear end cap and in circle
The cylinder body of cast, the two ends of described cylinder body are connected with described drive end bearing bracket and described rear end cap respectively, the work of described piston rod
Piston part is slidably connected with described cylinder body, also includes being enclosed within the accumulator cylinder outside described cylinder body and piston ringwise,
Described accumulator cylinder is in tubular type and being coaxially disposed with described cylinder body, the two ends of described accumulator cylinder respectively with described before
End cap and described rear end cap connect, and the inner side of described piston is slidably connected with the outside of described cylinder body, the outside of described piston
It is slidably connected with the inner side of described accumulator cylinder.
Preferably, described in one of the inlet channel of the medial compartment of described accumulator cylinder and oil inlet passage are arranged on
Drive end bearing bracket another be arranged on described rear end cap.
Preferably, described inlet channel is arranged on described drive end bearing bracket, and described oil inlet passage is arranged on described rear end cap,
Described inlet channel is additionally provided with charging connector.
Preferably, described drive end bearing bracket and described rear end cap are provided with for limiting what described accumulator cylinder moved radially
The second tubular type boss that first tubular type boss and described cylinder body move radially, described accumulator cylinder and described drive end bearing bracket
Between and be provided with sealing ring and described rear end cap between, between described cylinder body and described drive end bearing bracket and with described after
It is provided with sealing ring between end cap.
Preferably, also include the unloader that is inserted on described rear end cap, described unloader is by the duct of described rear end cap
Be divided into three chambers, the unloading port of described unloader, oil return opening and guide's hydraulic fluid port be respectively facing corresponding described chamber and with right
Answer described chamber, the branch road duct extending outside all oriented end cap of each chamber, also include being attached on described rear end cap
Multiple hydraulic valves, each oil nozzle of described hydraulic valve passes through branch road duct and corresponding described chamber.
Preferably, described unloader inserts described rear end cap from the side of described rear end cap.
Preferably, described unloader inserts described rear end cap from the rear end face of described rear end cap.
Preferably, also include the communicating pipe of the rod chamber of described cylinder body and corresponding described chamber.
Preferably, the bar portion outer end of described piston rod is also set with installing plate.
Preferably, it is additionally provided with sealing shroud between described drive end bearing bracket and described piston rod.
A kind of servomotor that the present invention provides, including piston rod, drive end bearing bracket, rear end cap, cylinder body, accumulator cylinder and work
Plug.Wherein drive end bearing bracket is enclosed within the outside of the bar portion of piston rod, and the two ends of cylinder body are connected with drive end bearing bracket and rear end cap respectively simultaneously,
Herein it should be noted that drive end bearing bracket is enclosed within outside the bar portion of piston rod, that is, show that drive end bearing bracket is used for having of sealed cylinder chamber
Rod cavity, also indicates that rear end cap is used for the rodless cavity of sealed cylinder chamber.Certainly the piston portion of piston rod is slidably connected with cylinder body,
Show be the piston portion of piston rod outside offset with the inner side of cylinder body and can relative slide.Cylinder body is in pipe
Type, accumulator cylinder is enclosed within the outside of cylinder body, and accumulator cylinder is in also tubular type, and is coaxially disposed with cylinder body, accumulation of energy
The two ends of device cylinder body are also connected with drive end bearing bracket and rear end cap, drive end bearing bracket and rear end cap be located at accumulator cylinder two ends serve close
The effect of envelope accumulator chamber.Piston is in annular and is located between cylinder body and accumulator cylinder, i.e. the inner side of piston and oil
The outside of cylinder body is slidably connected, and the outside of piston and the inner side of accumulator cylinder are slidably connected.Make drive end bearing bracket, rear end cap, accumulation of energy
Form accumulator chamber between device cylinder body and cylinder body.
According to above-mentioned technical scheme, it is recognised that the present invention by being set in the outside of cylinder body by accumulator cylinder,
The piston of annular is set between accumulator cylinder and cylinder body, makes to be formed accumulator chamber between accumulator cylinder and cylinder body
Room.Accumulator chamber is in hollow cylindrical, is enclosed within the outside of oil-in chamber.So accumulator chamber can be fitted tightly over oil cylinder
Together, make whole servomotor compact conformation.And, need not reuse as the inwall of accumulator chamber by using the outside of cylinder body
New part, as the inwall of accumulator chamber, can greatly save material, make further to reduce accumulator and take up room.
The two ends of accumulator are connected with drive end bearing bracket respectively and rear end cap connects simultaneously, and accumulator cylinder structure can be made to be in simple pipe
Type, easy to process.In sum, big the asking so accumulator that this servomotor can efficiently solve in servomotor takes up room
Topic.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the part section structural representation of the servomotor that rodless cavity provided in an embodiment of the present invention is working chamber；
Fig. 2 is the oil channel structures schematic diagram of the servomotor that rodless cavity provided in an embodiment of the present invention is working chamber；
Fig. 3 is the part section structural representation of the servomotor that rod chamber provided in an embodiment of the present invention is working chamber；
Fig. 4 is the oil channel structures schematic diagram of the servomotor that rod chamber provided in an embodiment of the present invention is working chamber.
In accompanying drawing, labelling is as follows：
Piston rod 1, drive end bearing bracket 2, rear end cap 3, cylinder body 4, accumulator cylinder 5, piston 6, unloader 7, communicating pipe 8, fill
Valve 9, installing plate 10, sealing shroud 11, servo valve 12, sequence valve 13, electromagnetic valve 14, check valve 15, rodless cavity 16, rod chamber
17th, gas storage chamber 18, reservoir chamber 19, first chamber 20, second chamber 21, the 3rd chamber 22.
Specific embodiment
The embodiment of the invention discloses a kind of servomotor, with efficiently solve the accumulator in servomotor take up room big
Problem.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Refer to Fig. 1, Fig. 1 is the cross-sectional view of servomotor provided in an embodiment of the present invention；Fig. 2 is that the present invention is real
Apply the oil channel structures schematic diagram of the servomotor of example offer, Fig. 3 is that the oil that rod chamber provided in an embodiment of the present invention is working chamber moves
The part section structural representation of machine, Fig. 4 is the oil circuit knot of the servomotor that rod chamber provided in an embodiment of the present invention is working chamber
Structure schematic diagram.
In a kind of specific embodiment, present embodiments provide a kind of servomotor, this servomotor includes piston rod 1, front end
Lid 2, rear end cap 3, cylinder body 4, accumulator cylinder 5 and piston 6.Drive end bearing bracket 2 is enclosed within outside the bar portion of piston rod 1, piston rod 1
Piston portion is slidably connected with cylinder body 4, and the two ends of cylinder body 4 are connected with drive end bearing bracket 2 and rear end cap 3 respectively, drive end bearing bracket 2, rear end
Formed with oil-in chamber between lid 3 and cylinder body 4, oil-in chamber is then divided into rodless cavity 16 and rod chamber by the piston portion of piston rod 1
17, and drive end bearing bracket 2 is used for sealing rod chamber 16, rear end cap 3 is used for sealing rodless cavity 17.Typically in order to be easily installed servomotor,
Also it is set with installing plate 10 in the bar portion outer end of piston rod 1, installing plate 10 is relatively fixed with drive end bearing bracket 2, and installing plate 10 can be with it
Its equipment is fixedly connected, and then so that servomotor is arranged on miscellaneous equipment.In order to prevent hydraulic oil from leaking along piston rod 1, best
Sealing shroud 11 is set between drive end bearing bracket 2 and piston rod 1.
Cylinder body 4 is in tubular type, and accumulator cylinder 5 is enclosed within the outside of cylinder body 4, and accumulator cylinder 5 is also in tubular type,
And be coaxially disposed with cylinder body 4, the two ends of accumulator cylinder 5 are also connected with drive end bearing bracket 2 and rear end cap 3, drive end bearing bracket 2 and rear end cap
3 two ends being located at accumulator cylinder 5 serve the effect of sealing accumulator chamber.Make drive end bearing bracket 2, rear end cap 3, accumulator cylinder
Form accumulator chamber between 5 and cylinder body 4.Drive end bearing bracket 2, rear end cap 3, accumulator cylinder 5 and cylinder body 4 specifically can be made
Make following annexation, be wherein provided with the opposite face between drive end bearing bracket 2 and rear end cap 3 along piston rod axis extend
Tubular type boss, and drive end bearing bracket 2 and rear end cap 3 be provided with for limiting the first tubular type that accumulator cylinder 5 moves radially
The second tubular type boss that boss and cylinder body 4 move radially, between accumulator cylinder 5 and drive end bearing bracket 2 and with rear end cap 3 it
Between be provided with sealing ring, be also provided with sealing ring between cylinder body 4 and drive end bearing bracket 2 and and rear end cap 3 between.
Piston 6 is in annular and is located between cylinder body 4 and accumulator cylinder 5, i.e. the inner side of piston 6 and cylinder body 4
Outside is slidably connected, and the inner side of the outside of piston 6 and accumulator cylinder 5 is slidably connected.Accumulator chamber is divided into two by piston 6
Individual chamber, as accommodating the hydraulic oil exiting from the rodless cavity 17 of oil-in chamber, another chamber is used for and fills one of chamber
Mechanism of qi connects, and usually connects with nitrogen machine.The inlet channel of the medial compartment of accumulator cylinder 5 and oil inlet passage are respectively provided with
On drive end bearing bracket 2 and rear end cap 3, the medial compartment of wherein accumulator cylinder 5 refers to by drive end bearing bracket 2, rear end cap 3, accumulator
Cylinder body 5 and the accumulator chamber of cylinder body 4 formation.Herein it should be noted that the medial compartment of accumulator cylinder 5 is by piston 6
In order to there be one in front chamber and rear chamber, wherein front chamber and rear chamber, for gas storage chamber 18, another is reservoir chamber for separation
19, wherein gas storage chamber 18 is connected with inlet channel, and reservoir chamber 19 is connected with oil inlet passage.Reclaim in view of reservoir chamber 19
Be hydraulic oil in rodless cavity 17, so preferably using rear chamber as reservoir chamber 19, making reservoir chamber 19 closer to no
Rod cavity 17, reduces flow liquid passage, and then can reduce the setting of unnecessary parts.Will inlet channel be arranged on drive end bearing bracket 2,
Oil inlet passage is arranged on rear end cap 3, and it is connection charging connector 9 on drive end bearing bracket that inlet channel is additionally provided with charging connector 9, also indicates that
Front chamber is gas storage chamber 18, and rear chamber is reservoir chamber 19.
By accumulator cylinder being set in the outside of cylinder body, annular is set between accumulator cylinder 5 and cylinder body 4
Piston 6, make between accumulator cylinder 5 and cylinder body 4 formed accumulator chamber.Accumulator chamber is in hollow cylindrical, is enclosed within
The outside of oil-in chamber.Together with so accumulator chamber can be fitted tightly with oil-in chamber, make whole servomotor compact conformation.And
As the inwall of accumulator chamber, new part need not be reused by using the outside of cylinder body as in accumulator chamber
Wall, can greatly save material, make to create a further reduction accumulator and take up room.The two ends difference of accumulator cylinder 5 simultaneously
It is connected with drive end bearing bracket 2 and rear end cap 3 connects, accumulator cylinder 5 structure can be made to be in simple tubular type, easy to process.To sum up institute
State, the accumulator that this servomotor can efficiently solve in servomotor takes up room big problem.
Servomotor also includes multiple hydraulic valves, and hydraulic valve mainly has servo valve 12, sequence valve 13, electromagnetic valve 14 and check valve
15 grade other hydraulic valves, the oil nozzle of each hydraulic valve of servomotor mainly passes through three nodes and connects, and these three nodes
Each node at least connects more than three oil nozzles, and general connected mode can be by logical integrated package more than three, by each liquid
The oil nozzle connection of pressure valve is got up.But the volume and weight of hydraulic cylinder can be increased using integrated package, so that whole servomotor is seemed
Relatively more too fat to move, in order to the shape and structure of further appropriate design servomotor, following design can be done.
Wherein the unloader 7 in servomotor is inserted in rear end cap 3, unloader 7 can be inserted from the rear end face of rear end cap 3
Enter in rear end cap 3 it is also possible to insert rear end cap 3 from the surrounding side of rear end cap 3, what unloader 7 herein adopted should be
Plug-in unloader.Herein it should be noted that the three of unloader 7 hydraulic fluid ports are respectively unloading port, oil return opening and guide's hydraulic fluid port,
When servomotor working chamber operationally, guide's hydraulic fluid port access hydraulic oil, prop up unloading port, now unloader 7 does not work；Work as oil
When motivation working chamber quits work, guide's hydraulic fluid port stops introducing hydraulic oil, now the hydraulic oil pressure outside unloading port, off-load
Mouth is opened, and the hydraulic oil returned from working chamber flows to oil return opening at unloading port, and oil flows out from oil return opening.It is inserted into rear end cap
Duct in rear end cap 3 is divided into three chambers by the unloader 7 on 3, and three chambers are respectively first chamber 20, second chamber
21 and the 3rd chamber 22, herein it should be noted that the duct of rear end cap 3 is divided into three independent chambers by unloader 7, main
If by being arranged at the node in multi-through hole road of rear end cap 3 unloader 7, multi-through hole road here should be in threeway certainly
More than.Because such installation relation, make many logical ducts become three chambers of separation, and unloader 7 plays in centre
Compartmentation.Three hydraulic fluid ports of wherein unloader 7 be unloading port, oil return opening and guide's hydraulic fluid port should towards corresponding chamber and with
Corresponding chamber, that is, show, three hydraulic fluid ports of unloader 7 and three chambers have one-to-one relation, because respectively
The difference of the effect of individual chamber, and the principle of servomotor application is different, the corresponding relation between the hydraulic fluid port of unloader 7 and chamber
Differ, specific corresponding to relation can be directly obtained by oil circuit figure specific in prior art, here no longer does concrete limit
Fixed.Branch road duct is passed through in the branch road duct that the outside of all oriented rear end cap 3 of each chamber extends, wherein each oil nozzle of hydraulic valve
With corresponding chamber.Herein it should be noted that the oil nozzle of each hydraulic valve specifically how to connect may be referred to existing
There is specific oil circuit figure in technology, here is no longer specifically limited.Herein also, it should be noted working as the off-load in unloader 7
When mouth is connected with rodless cavity 17, then preferably unloader 7 is inserted in rear end cap 3 at the rear end face of rear end cap 3, so can make
The unloading port of unloader 7 is directly directed at the hydraulic fluid port of rodless cavity 17, and the outlet in the branch road duct of the chamber connecting with oil return opening is just
The side of rear end cap 3 can be arranged on, be so conducive to three chambers spread out；When the unloading port in unloader 7 with have
During rod cavity 16 connection, then preferably unloader 7 is inserted in rear end cap 3 at the side of rear end cap 3, so can make unloader 7
Oil return opening be directly directed at the hydraulic fluid port of rodless cavity 17, and the outlet of the branch road duct of the chamber connecting with unloading port just can be arranged on
The side of rear end cap 3, is so conducive to making three chamber dispersed placement.Three chambers are three nodes of oil circuit in figure, lead to
Cross and three main nodes are arranged on rear end cap 3, can avoid using integrated package, and then reduce shared by whole servomotor
Volume.This unloader 7 is inserted on rear end cap 3, by the annexation of unloader 7 and rear end cap 3, by a threeway or
More than person, logical duct is divided into three separate chamber, and by three hydraulic fluid ports of unloader 7 towards corresponding chamber when installing
Room, make hydraulic fluid port directly with corresponding chamber, so can make unloader 7 and rear end cap 3 install more compact, further
Reduce the volume of whole servomotor.And because the hydraulic fluid port of unloader 7 is scattering device, so that three chambers can be held respectively backward
The front end face of lid 3, rear end face and the side extension to surrounding, and then each hydraulic valve being attached on rear end cap 3 can be made
There is enough installing spaces.
Because each hydraulic valve is respectively positioned on rear end cap 3, and for the connection with rod chamber 16, connect preferably by one
Rod chamber 17 is front chamber and corresponding chamber by pipe 8.In order to further ensure three chambers uniform dispersions point
Unloader 7 is preferably coaxially disposed by cloth with cylinder body 4.
In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase one
The scope the widest causing.
Claims (10)
1. a kind of servomotor, including piston rod (1), rear end cap (3), in the cylinder body (4) of tubular type and be enclosed within described piston
Drive end bearing bracket (2) outside the bar portion of bar (1), the two ends of described cylinder body (4) respectively with described drive end bearing bracket (2) and described rear end cap
(3) connect, the piston portion of described piston rod (1) and described cylinder body (4) are slidably connected it is characterised in that also including being enclosed within institute
State the accumulator cylinder (5) outside cylinder body (4) and piston (6) ringwise, described accumulator cylinder (5) be in tubular type and with
Described cylinder body (4) is coaxially disposed, the two ends of described accumulator cylinder (5) respectively with described drive end bearing bracket (2) and described rear end cap
(3) connect, the inner side of described piston (6) and the outside of described cylinder body (4) be slidably connected, the outside of described piston (6) and institute
The inner side stating accumulator cylinder (5) is slidably connected.
2. servomotor according to claim 1 is it is characterised in that the air inlet of the medial compartment of described accumulator cylinder (5)
One of passage and oil inlet passage are arranged on described drive end bearing bracket (2), and another is arranged on described rear end cap (3).
3. servomotor according to claim 2 is it is characterised in that described inlet channel is arranged on described drive end bearing bracket (2),
Described oil inlet passage is arranged on described rear end cap (3), and described inlet channel is additionally provided with charging connector (9).
4. servomotor according to claim 3 is it is characterised in that described drive end bearing bracket (2) and described rear end cap (3) are respectively provided with
Have for limiting the first tubular type boss that described accumulator cylinder (5) moves radially and described cylinder body (4) moves radially
Second tubular type boss, between described accumulator cylinder (5) and described drive end bearing bracket (2) and equal and described rear end cap (3) between
It is provided with sealing ring, be provided between described cylinder body (4) and described drive end bearing bracket (2) and and described rear end cap (3) between
Sealing ring.
5. the servomotor according to any one of claim 1-4 is it is characterised in that also include being inserted into described rear end cap (3)
On unloader (7), the duct of described rear end cap (3) is divided into three chambers, described unloader (7) by described unloader (7)
Unloading port, oil return opening and guide's hydraulic fluid port be respectively facing corresponding described chamber and with corresponding described chamber, each chamber
The branch road duct extending outside all oriented end cap, also includes the multiple hydraulic valves being attached on described rear end cap (3), described hydraulic pressure
Each oil nozzle of valve passes through branch road duct and corresponding described chamber.
6. servomotor according to claim 5 is it is characterised in that described unloader (7) is from the side of described rear end cap (3)
Insert described rear end cap (3).
7. servomotor according to claim 5 is it is characterised in that described unloader (7) is from the rear end of described rear end cap (3)
Described rear end cap (3) is inserted in face.
8. servomotor according to claim 7 is it is characterised in that also include the rod chamber (16) of described cylinder body (4)
Communicating pipe (8) with corresponding described chamber.
9. servomotor according to claim 8 is it is characterised in that the bar portion outer end of described piston rod (1) is also set with peace
Dress plate (10).
10. servomotor according to claim 9 is it is characterised in that between described drive end bearing bracket (2) and described piston rod (1)
It is additionally provided with sealing shroud (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510280443.5A CN104847711B (en) | 2015-05-27 | 2015-05-27 | Hydraulic servomotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510280443.5A CN104847711B (en) | 2015-05-27 | 2015-05-27 | Hydraulic servomotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104847711A CN104847711A (en) | 2015-08-19 |
| CN104847711B true CN104847711B (en) | 2017-02-22 |
Family
ID=53847602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510280443.5A Active CN104847711B (en) | 2015-05-27 | 2015-05-27 | Hydraulic servomotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104847711B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918435B (en) * | 2017-04-21 | 2023-04-07 | 中国空气动力研究与发展中心高速空气动力研究所 | Integrated impact cylinder device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6068448A (en) * | 1996-12-09 | 2000-05-30 | Sugino Machine Limited | Pressure hydraulic pump having first and second synchronously driven reciprocating pistons with a pressure control structure |
| DE20102031U1 (en) * | 2001-02-02 | 2001-04-26 | Niemann Wolfgang | Separation cylinder |
| JP3881314B2 (en) * | 2003-01-10 | 2007-02-14 | 株式会社日本Ａｅパワーシステムズ | Hydraulic operating device for switchgear |
| US7464961B2 (en) * | 2006-06-14 | 2008-12-16 | Island Pyrochemical Industries Corp. | Variable output inflator |
| CN103511004B (en) * | 2013-09-17 | 2015-05-13 | 上海新力机器厂 | Closed electro-hydraulic actuator and assembly of closed electro-hydraulic actuator |
| CN204985110U (en) * | 2015-05-27 | 2016-01-20 | 德阳恒瑞液控技术有限公司 | Servomotor |
-
2015
- 2015-05-27 CN CN201510280443.5A patent/CN104847711B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104847711A (en) | 2015-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104847711B (en) | Hydraulic servomotor | |
| CN103626057B (en) | Hoisting crane and hydraulic efficiency pressure system thereof | |
| CN101629546B (en) | Integration hydraulic brake system of wind generating set | |
| CN104452850A (en) | Method and control device for recycling potential energy of movable arm of excavator | |
| CN110172966A (en) | A kind of oblique steel pipe composite structure forms the construction method of beaer | |
| CN201228689Y (en) | Compound hydraulic cylinder | |
| CN109515417A (en) | Brake fluid system and crane | |
| CN204985110U (en) | Servomotor | |
| CN204385793U (en) | The control device that a kind of excavator swing arm potential energy is recycled | |
| CN104828701B (en) | Hydraulic control system and crane therewith | |
| CN102502265B (en) | End hose, end hose stiffness control system and pipeline transportation machinery | |
| CN104074812A (en) | Hydraulic pressurizing energy recovery system and control device | |
| CN104728216B (en) | Clutch hydraulic system exhaust structure and hydraulic braking system exhaust structure | |
| CN112032133B (en) | Hydraulic control system and work vehicle | |
| CN109681389A (en) | Reinforcing device, using method and wind generating set foundation | |
| CN203962517U (en) | The two hydraulic system of energy accumulators in double loop and hydraulic pressure beater | |
| CN103352886B (en) | Hydraulic control valve for energy recovery | |
| CN207899695U (en) | The gluing system of photovoltaic module | |
| CN202023587U (en) | Commutation apparatus of filling pump | |
| CN202490751U (en) | Full-automatic low-tension filling device capable of accurately controlling glue quantity | |
| CN207261338U (en) | Tandem piggybacking formula multipath hydraulic control device | |
| CN102705226B (en) | Pumping installations and comprise the pumping equipment of this pumping installations | |
| CN101846106A (en) | Dynamic synchronous distributor of hydraulic oil cylinder | |
| CN206942792U (en) | A kind of quick blocking stabilising arrangement for shield tunnel accident rescue | |
| CN207311036U (en) | A kind of hydraulic suspension system, Hydraulic Elements and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |