CN204985110U - Servomotor - Google Patents
Servomotor Download PDFInfo
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- CN204985110U CN204985110U CN201520353660.8U CN201520353660U CN204985110U CN 204985110 U CN204985110 U CN 204985110U CN 201520353660 U CN201520353660 U CN 201520353660U CN 204985110 U CN204985110 U CN 204985110U
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- rear end
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- end cover
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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
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Abstract
The utility model discloses a servomotor, be in including piston rod, cover front end housing, the rear end cap in the pole portion of the piston rod outside and be the hydro -cylinder body of tubular type, the both ends of the hydro -cylinder body respectively with the front end housing with the rear end cap is connected, the piston portion of piston rod with hydro -cylinder body sliding connection still is in including the cover the energy storage ware cylinder body of the external side of hydro -cylinder with be annular piston, energy storage ware cylinder body be the tubular type and with hydro -cylinder component parts of an entirety axle sets up, the both ends of energy storage ware cylinder body respectively with the front end housing with the rear end cap is connected, the piston inboard with the outside sliding connection of the hydro -cylinder body, the outside of piston and the inboard sliding connection of energy storage ware cylinder body. Through establishing energy storage ware cylinder body cover in the outside of the hydro -cylinder body, make whole servomotor's structure compacter. So this servomotor can solve the big problem of energy storage ware occupation space among the servomotor effectively.
Description
Technical field
The utility model relates to steam turbine technology field, more particularly, relates to a kind of oil engine.
Background technique
Oil engine, also known as hydraulic servo motor, be the power mechanism of general hydraulic pressure installation, oil engine advantage is very many, owing to having in using process that inertia is little, driving force is large, action is fast and can the remarkable advantages such as consumption is low, so be widely used.
Oil engine of the prior art is made up of an oil cylinder and one or more hydrovalve integrated package of hanging over oil cylinder side outward.In prior art, due to the needs of structure, generally servovalve, solenoid valve, control oil engine switch electromagnetic valve and unloading valve are integrated on several integrated package, there is in integrated package the duct be communicated with by each hydrovalve.Carry out oil circuit connection between integrated package, each hydrovalve and integrated package carry out oil circuit and are connected.On the upper end cap that integrated package is connected to oil cylinder with one group of bolt and lower end cap.Oil engine of the prior art generally also needs installation accumulator, and accumulator inner chamber is also divided into the accumulator piston of two chambers by accumulator containing one.In two chambers that accumulator piston is separated out, a chamber is communicated with inflator, and another chamber is communicated with the rod chamber in oil cylinder and ante-chamber.
But be through the discovery that studies for a long period of time of inventor, because accumulator is generally cylindrical, result in whole oil engine and seem very too fat to move, and the installation of accumulator limits the installation of other hydrovalve, further make whole oil engine complex structure, the maintenance cost in later stage is high.
In sum, how the accumulator solved in oil engine takes up room large problem effectively, is current those skilled in the art's urgent problem.
Model utility content
In view of this, the purpose of this utility model is to provide a kind of oil engine, and this oil engine can to take up room large problem by the accumulator effectively solved in oil engine.
In order to achieve the above object, the utility model provides following technological scheme:
A kind of oil engine, comprise piston rod, front cover outside the bar portion being enclosed within described piston rod, rear end cover and the cylinder body in tubular type, the two ends of described cylinder body are connected with described front cover and described rear end cover respectively, piston portion and the described cylinder body of described piston rod are slidably connected, also comprise and be enclosed within accumulator cylinder outside described cylinder body and ringwise piston, described accumulator cylinder is tubular type and coaxially arranges with described cylinder body, the two ends of described accumulator cylinder are connected with described front cover and described rear end cover respectively, the inner side of described piston and the outside slip of described cylinder body are dynamically connected, the outside of described piston is connected with the inner slide of described accumulator cylinder.
Preferably, one in the gas-entered passageway of the medial compartment of described accumulator cylinder and oil inlet passage is arranged on described front cover another is arranged on described rear end cover.
Preferably, described gas-entered passageway is arranged on described front cover, and described oil inlet passage is arranged on described rear end cover, and described gas-entered passageway is also provided with charging air inlet.
Preferably, described front cover and described rear end cover are provided with for limiting the first tubular type boss that described accumulator cylinder moves radially and the second tubular type boss that described cylinder body moves radially, between described accumulator cylinder and described front cover and and described rear end cover between be provided with seal ring, between described cylinder body and described front cover and and described rear end cover between be provided with seal ring.
Preferably, also comprise the unloading valve be inserted on described rear end cover, the duct of described rear end cover is divided into three chambers by described unloading valve, described unloading valve unloading port, return opening and guide's hydraulic fluid port respectively towards the described chamber of correspondence and with corresponding described chamber, the branch road duct extended outside all oriented end cap of each chamber, also comprise the multiple hydrovalves be attached on described rear end cover, each oil nozzle of described hydrovalve is by branch road duct and corresponding described chamber.
Preferably, described unloading valve inserts described rear end cover from the side of described rear end cover.
Preferably, described unloading valve inserts described rear end cover from the ear end face of described rear end cover.
Preferably, also comprise the connecting tube of the rod chamber of described cylinder body with corresponding described chamber.
Preferably, the outer end, bar portion of described piston rod is also set with mounting plate.
Preferably, also stuffing box gland is provided with between described front cover and described piston rod.
A kind of oil engine that the utility model provides, comprises piston rod, front cover, rear end cover, cylinder body, accumulator cylinder and piston.Wherein front cover is enclosed within the outside in the bar portion of piston rod, the two ends of cylinder body are connected with front cover and rear end cover respectively simultaneously, it should be noted that herein, front cover is enclosed within outside the bar portion of piston rod, namely show the rod chamber of front cover for sealed cylinder chamber, also show the rodless cavity of rear end cover for sealed cylinder chamber.Piston portion and the cylinder body of certain piston rod are slidably connected, and what namely show is that the outside of the piston portion of piston rod and the inner side of cylinder body offset and can relative sliding.Cylinder body is tubular type, accumulator cylinder is enclosed within the outside of cylinder body, and accumulator cylinder is also in tubular type, and coaxially arrange with cylinder body, the two ends of accumulator cylinder are also connected with front cover and rear end cover, and the two ends that front cover and rear end cover are positioned at accumulator cylinder serve the effect sealing accumulator chamber.Piston is ring and between cylinder body and accumulator cylinder, namely the inner side of piston and the outside slip of cylinder body are dynamically connected, and the outside of piston is connected with the inner slide of accumulator cylinder.Make front cover, rear end cover, between accumulator cylinder and cylinder body, form accumulator chamber.
According to above-mentioned technological scheme, can know, the utility model, by accumulator cylinder being set in the outside of cylinder body, arranging the piston of annular, makes to form accumulator chamber between accumulator cylinder and cylinder body between accumulator cylinder and cylinder body.Accumulator chamber is hollow cylindrical, is enclosed within the outside of oil-in chamber.Together with such accumulator chamber can fit tightly with oil cylinder, make whole oil engine compact structure.And by using the inwall of the outside of cylinder body as accumulator chamber, without the need to re-using the inwall of new parts as accumulator chamber, greatly can save material, making further to reduce accumulator and taking up room.Simultaneously the two ends of accumulator are connected with front cover respectively and connect with rear end cover, and accumulator cylinder structure can be made to be simple circle cast, easy to process.In sum, so this oil engine can to take up room large problem by the accumulator effectively solved in oil engine.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 for rodless cavity that the utility model embodiment provides be the part section structural representation of the oil engine of active chamber;
Fig. 2 for rodless cavity that the utility model embodiment provides be the oil channel structures schematic diagram of the oil engine of active chamber;
Fig. 3 for rod chamber that the utility model embodiment provides be the part section structural representation of the oil engine of active chamber;
Fig. 4 for rod chamber that the utility model embodiment provides be the oil channel structures schematic diagram of the oil engine of active chamber.
In accompanying drawing, mark is as follows:
Piston rod 1, front cover 2, rear end cover 3, cylinder body 4, accumulator cylinder 5, piston 6, unloading valve 7, connecting tube 8, charging air inlet 9, mounting plate 10, stuffing box gland 11, servovalve 12, sequence valve 13, solenoid valve 14, one-way valve 15, rodless cavity 16, rod chamber 17, gas storage chamber 18, reservoir chamber 19, first chamber 20, second chamber 21, the 3rd chamber 22.
Embodiment
The utility model embodiment discloses a kind of oil engine, to take up room large problem with the accumulator effectively solved in oil engine.
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, the cross-sectional view of the oil engine that Fig. 1 provides for the utility model embodiment; The oil channel structures schematic diagram of the oil engine that Fig. 2 provides for the utility model embodiment, Fig. 3 for rod chamber that the utility model embodiment provides be the part section structural representation of the oil engine of active chamber, Fig. 4 for rod chamber that the utility model embodiment provides be the oil channel structures schematic diagram of the oil engine of active chamber.
In a kind of specific embodiment, present embodiments provide a kind of oil engine, this oil engine comprises piston rod 1, front cover 2, rear end cover 3, cylinder body 4, accumulator cylinder 5 and piston 6.Front cover 2 is enclosed within outside the bar portion of piston rod 1, piston portion and the cylinder body 4 of piston rod 1 are slidably connected, the two ends of cylinder body 4 are connected with front cover 2 and rear end cover 3 respectively, front cover 2, formed with oil-in chamber between rear end cover 3 and cylinder body 4, oil-in chamber is then divided into rod chamber 16 and rodless cavity 17 by the piston portion of piston rod 1, and front cover 2 is for sealing rod chamber 16, rear end cover 3 is for sealing rodless cavity 17.Generally for the ease of installing oil engine, be also set with mounting plate 10 in the outer end, bar portion of piston rod 1, mounting plate 10 is relative with front cover 2 fixing, and mounting plate 10 can be fixedly connected with miscellaneous equipment, and then oil engine is arranged on miscellaneous equipment.In order to prevent hydraulic oil from leaking along piston rod 1, preferably stuffing box gland 11 is set between front cover 2 and piston rod 1.
Cylinder body 4 is in tubular type, accumulator cylinder 5 is enclosed within the outside of cylinder body 4, and accumulator cylinder 5 is also in tubular type, and coaxially arrange with cylinder body 4, the two ends of accumulator cylinder 5 are also connected with front cover 2 and rear end cover 3, and the two ends that front cover 2 and rear end cover 3 are positioned at accumulator cylinder 5 serve the effect sealing accumulator chamber.Make front cover 2, rear end cover 3, between accumulator cylinder 5 and cylinder body 4, form accumulator chamber.Concrete can make front cover 2, rear end cover 3, accumulator cylinder 5 and cylinder body 4 make following annexation, opposing side wherein between front cover 2 and rear end cover 3 is provided with the tubular type boss of the Axis Extension along piston rod, and front cover 2 and rear end cover 3 are provided with for limiting the first tubular type boss that accumulator cylinder 5 moves radially and the second tubular type boss that cylinder body 4 moves radially, between accumulator cylinder 5 and front cover 2 and and rear end cover 3 between be provided with seal ring, between cylinder body 4 and front cover 2 and and rear end cover 3 between be also provided with seal ring.
Piston 6 is in ring and between cylinder body 4 and accumulator cylinder 5, namely the inner side of piston 6 and the outside slip of cylinder body 4 are dynamically connected, and the outside of piston 6 is connected with the inner slide of accumulator cylinder 5.Accumulator chamber is divided into two chambers by piston 6, and one of them chamber is as holding the hydraulic oil exited from the rodless cavity 17 of oil-in chamber, and another chamber is used for being communicated with inflator, is generally be communicated with nitrogen machine.The gas-entered passageway of the medial compartment of accumulator cylinder 5 and oil inlet passage are separately positioned on front cover 2 and rear end cover 3, and wherein the medial compartment of accumulator cylinder 5 refers to the accumulator chamber formed by front cover 2, rear end cover 3, accumulator cylinder 5 and cylinder body 4.It should be noted that herein, the medial compartment of accumulator cylinder 5 is separated in order to front chamber and rear chamber by piston 6, another is reservoir chamber 19 for gas storage chamber 18 wherein one in front chamber and rear chamber, wherein gas storage chamber 18 is communicated with gas-entered passageway, and reservoir chamber 19 is communicated with oil inlet passage.What consider that reservoir chamber 19 reclaims is hydraulic oil in rodless cavity 17, thus preferably using rear chamber as reservoir chamber 19, make reservoir chamber 19 more near rodless cavity 17, reduce flow liquid passage, and then the setting of unnecessary parts can be reduced.Be arranged on front cover 2 by gas-entered passageway, oil inlet passage is arranged on rear end cover 3, and gas-entered passageway is also provided with on charging air inlet 9 i.e. front cover and connects charging air inlet 9, and also just show that front chamber is gas storage chamber 18, rear chamber is reservoir chamber 19.
By accumulator cylinder being set in the outside of cylinder body, the piston 6 of annular being set between accumulator cylinder 5 and cylinder body 4, making to form accumulator chamber between accumulator cylinder 5 and cylinder body 4.Accumulator chamber is hollow cylindrical, is enclosed within the outside of oil-in chamber.Together with such accumulator chamber can fit tightly with oil-in chamber, make whole oil engine compact structure.And by using the inwall of the outside of cylinder body as accumulator chamber, without the need to re-using the inwall of new parts as accumulator chamber, greatly can save material, making to create a further reduction accumulator and taking up room.Simultaneously the two ends of accumulator cylinder 5 are connected with front cover 2 respectively and connect with rear end cover 3, and accumulator cylinder 5 structure can be made to be simple circle cast, easy to process.In sum, this oil engine can to take up room large problem by the accumulator effectively solved in oil engine.
Oil engine also comprises multiple hydrovalve, hydrovalve mainly contains other hydrovalves such as servovalve 12, sequence valve 13, solenoid valve 14 and one-way valve 15, the oil nozzle of each hydrovalve of oil engine is mainly communicated with by three nodes, and each node of these three nodes is at least communicated with more than three oil nozzles, general Placement can be by integrated package logical more than three, is communicated with to get up by the oil nozzle of each hydrovalve.But adopt integrated package can increase the volume and weight of oil hydraulic cylinder, make whole oil engine seem more too fat to move, in order to can the shape and structure of further appropriate design oil engine, following design can be done.
Wherein be inserted in rear end cover 3 by the unloading valve 7 in oil engine, unloading valve 7 can insert rear end cover 3 from the ear end face of rear end cover 3, and also can insert rear end cover 3 from the surrounding side of rear end cover 3, what unloading valve 7 herein adopted should be plug-in type unloading valve.It should be noted that, three hydraulic fluid ports of unloading valve 7 are respectively unloading port, return opening and guide's hydraulic fluid port herein, when oil engine active chamber operationally, guide's hydraulic fluid port access high pressure oil, prop up unloading port, now unloading valve 7 does not work; When oil engine active chamber quits work, guide's hydraulic fluid port stops introducing high pressure oil, and the high pressure oil pressure now outside unloading port, unloading port is opened, and the high pressure oil of returning from active chamber flows to return opening from unloading port, and oil flows out from return opening.Duct in rear end cover 3 is divided into three chambers by the unloading valve 7 be inserted on rear end cover 3, three chambers are respectively the first chamber 20, second chamber 21 and the 3rd chamber 22, it should be noted that herein, the duct of rear end cover 3 is divided into three independently chambers by unloading valve 7, mainly by unloading valve 7 being arranged on the Nodes in the multi-through hole road of rear end cover 3, multi-through hole road here should more than threeway certainly.Because such installation relation, make many logical ducts become three chambers of separation, and unloading valve 7 play compartmentation in centre.Wherein three hydraulic fluid ports of unloading valve 7 and unloading port, return opening and guide's hydraulic fluid port should towards the chamber of correspondence and with corresponding chamber, what namely show is, there is relation one to one in three hydraulic fluid ports and three chambers of unloading valve 7, because the difference of the effect of each chamber, and the principle of oil engine application is different, the hydraulic fluid port of unloading valve 7 is not identical with the corresponding relation between chamber yet, concrete corresponding relation directly can be obtained by oil circuit figure concrete in prior art, is no longer specifically limited at this.The branch road duct of the outside extension of all oriented rear end cover 3 of each chamber, wherein each oil nozzle of hydrovalve is by branch road duct and corresponding chamber.It should be noted that, concrete how the connecting of oil nozzle of each hydrovalve with reference to oil circuit figure concrete in prior art, no longer can be specifically limited at this herein.Also it should be noted that herein, when the unloading port in unloading valve 7 is communicated with rodless cavity 17, then preferably unloading valve 7 is inserted in rear end cover 3 from the ear end face of rear end cover 3, the unloading port of unloading valve 7 can be made so directly to aim at the hydraulic fluid port of rodless cavity 17, and the outlet in the branch road duct of the chamber be communicated with return opening just can be arranged on the side of rear end cover 3, be conducive to three chambers to spread out like this; When the unloading port in unloading valve 7 is communicated with rod chamber 16, then preferably unloading valve 7 is inserted in rear end cover 3 from the side of rear end cover 3, the return opening of unloading valve 7 can be made so directly to aim at the hydraulic fluid port of rodless cavity 17, and the branch road duct of the chamber be communicated with unloading port exports the side that just can be arranged on rear end cover 3, be conducive to like this making three chamber dispersed placement.Three chambers are three nodes in oil circuit figure, by by three main Node configurations at rear end cover 3, can avoid using integrated package, and then reduce the volume shared by whole oil engine.This unloading valve 7 is inserted on rear end cover 3, by the annexation of unloading valve 7 with rear end cover 3, a threeway or many logical ducts are divided into three separate chamber, and when installation by the chamber of three of unloading valve 7 hydraulic fluid ports towards correspondence, make hydraulic fluid port directly with corresponding chamber, unloading valve 7 and rear end cover 3 can be made like this to install more compact, further reduce the volume of whole oil engine.And due to the hydraulic fluid port of unloading valve 7 are scattering devices, three chambers can be extended respectively to the front-end face of rear end cover 3, ear end face and the side to surrounding, and then each hydrovalve be attached on rear end cover 3 can be made to have enough installing spaces.
Because each hydrovalve is all positioned on rear end cover 3, and for the connection with rod chamber 16, preferably by a connecting tube 8 by rod chamber 17 i.e. front chamber and corresponding chamber.In order to three chambers uniform dispersion distributions can be ensured further, preferably unloading valve 7 and cylinder body 4 are coaxially arranged.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an oil engine, comprise piston rod (1), front cover (2) outside the bar portion being enclosed within described piston rod (1), rear end cover (3) and the cylinder body (4) in tubular type, the two ends of described cylinder body (4) are connected with described front cover (2) and described rear end cover (3) respectively, piston portion and the described cylinder body (4) of described piston rod (1) are slidably connected, it is characterized in that, also comprise the accumulator cylinder (5) and ringwise piston (6) that are enclosed within described cylinder body (4) outside, described accumulator cylinder (5) is in tubular type and coaxially arrange with described cylinder body (4), the two ends of described accumulator cylinder (5) are connected with described front cover (2) and described rear end cover (3) respectively, the inner side of described piston (6) and the outside slip of described cylinder body (4) are dynamically connected, the outside of described piston (6) is connected with the inner slide of described accumulator cylinder (5).
2. oil engine according to claim 1, it is characterized in that, one in the gas-entered passageway of the medial compartment of described accumulator cylinder (5) and oil inlet passage is arranged on described front cover (2) another is arranged on described rear end cover (3).
3. oil engine according to claim 2, it is characterized in that, described gas-entered passageway is arranged on described front cover (2), and described oil inlet passage is arranged on described rear end cover (3), and described gas-entered passageway is also provided with charging air inlet (9).
4. oil engine according to claim 3, it is characterized in that, described front cover (2) and described rear end cover (3) are provided with for limiting the first tubular type boss that described accumulator cylinder (5) moves radially and the second tubular type boss that described cylinder body (4) moves radially, between described accumulator cylinder (5) and described front cover (2) and and described rear end cover (3) between be provided with seal ring, between described cylinder body (4) and described front cover (2) and and described rear end cover (3) between be provided with seal ring.
5. the oil engine according to any one of claim 1-4, it is characterized in that, also comprise the unloading valve (7) be inserted on described rear end cover (3), the duct of described rear end cover (3) is divided into three chambers by described unloading valve (7), the unloading port of described unloading valve (7), return opening and guide's hydraulic fluid port respectively towards the described chamber of correspondence and with corresponding described chamber, the branch road duct extended outside all oriented end cap of each chamber, also comprise the multiple hydrovalves be attached on described rear end cover (3), each oil nozzle of described hydrovalve is by branch road duct and corresponding described chamber.
6. oil engine according to claim 5, is characterized in that, described unloading valve (7) inserts described rear end cover (3) from the side of described rear end cover (3).
7. oil engine according to claim 5, is characterized in that, described unloading valve (7) inserts described rear end cover (3) from the ear end face of described rear end cover (3).
8. oil engine according to claim 7, is characterized in that, also comprises the connecting tube (8) of the rod chamber of described cylinder body (4) (16) with corresponding described chamber.
9. oil engine according to claim 8, is characterized in that, the outer end, bar portion of described piston rod (1) is also set with mounting plate (10).
10. oil engine according to claim 9, is characterized in that, is also provided with stuffing box gland (11) between described front cover (2) and described piston rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520353660.8U CN204985110U (en) | 2015-05-27 | 2015-05-27 | Servomotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520353660.8U CN204985110U (en) | 2015-05-27 | 2015-05-27 | Servomotor |
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| Publication Number | Publication Date |
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| CN204985110U true CN204985110U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520353660.8U Active CN204985110U (en) | 2015-05-27 | 2015-05-27 | Servomotor |
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| CN (1) | CN204985110U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847711A (en) * | 2015-05-27 | 2015-08-19 | 德阳恒瑞液控技术有限公司 | Hydraulic servomotor |
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2015
- 2015-05-27 CN CN201520353660.8U patent/CN204985110U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847711A (en) * | 2015-05-27 | 2015-08-19 | 德阳恒瑞液控技术有限公司 | Hydraulic servomotor |
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