CN202707642U - Adjustable travel piston type energy accumulator - Google Patents
Adjustable travel piston type energy accumulator Download PDFInfo
- Publication number
- CN202707642U CN202707642U CN2012203836990U CN201220383699U CN202707642U CN 202707642 U CN202707642 U CN 202707642U CN 2012203836990 U CN2012203836990 U CN 2012203836990U CN 201220383699 U CN201220383699 U CN 201220383699U CN 202707642 U CN202707642 U CN 202707642U
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- piston
- cylinder body
- port end
- travel
- adjustable
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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 product technology of an adjustable travel piston type energy accumulator. The shortcomings that the existing like product is big in collision vibration and narrow in range of application are overcome. The adjustable travel piston type energy accumulator comprises a cylinder body, a piston, a gas cavity and an oil cavity. Two ends of the cylinder body are respectively provided with a gas port end cover and an oil port end cover. A pair of guide rings and a plurality of seal rings are arranged on the outer surface of the circumference of the piston. The end surface of the piston is connected with a travel rod. The travel rod passes through the oil cavity and protrudes out of the cylinder body from a center through hole of the oil port end cover. A travel limiting device is arranged on the rod portion of the travel rod. A seal gland is arranged on the outer end surface of the oil port end cover. A scraper seal and an oil seal are arranged between the center of the seal gland and the circumferential surface of the travel rod in an embedded mode. The adjustable travel piston type energy accumulator not only has functions of absorbing impact, eliminating pulsation, storing energy and stabilizing pressure, but also avoids that two side end surfaces of the piston directly hit against end covers of the cylinder body. The adjustable travel piston type energy accumulator is particularly suitable for hydraulic control system pipeline application in the space flight, the aviation, the metallurgy, the war industry, the moving vehicle loading and the like.
Description
Technical field
The utility model relates to a kind of hydraulic system pipeline inside that is installed on, and mainly plays the piston accumulator product of accumulation of energy, noise reduction and pooling feature, especially refers to the stroke regulating structure technology of piston.
Background technique
Accumulator is indispensable auxiliary device in a kind of hydraulic system, both can play buffering and Noise Reduction, can save a large amount of energy again, thereby be widely used in hydraulic system.Divide according to energy storage apparatus, common accumulator product mainly contains two kinds of capsule formula and piston types at present, and wherein bladder type hydropneumatic accumulator can not bear frequently pressure surge and than heavy load, otherwise easily causes the leather bag break accident.And piston accumulator generally comprises cylinder body and be located at the piston that slides movingly with it in the cylinder body, and the both sides of piston are respectively air cavity and oil pocket, wherein fills with inert gas to produce initial pressure in air cavity.This type of comparatively typical product such as State Intellectual Property Office on April 18th, 2012 notice of authorization name to be called " piston accumulator " patent No. be the utility model patent of ZL201120222550.X, it comprises: " accumulator body and piston; the piston both sides are respectively oil pocket and air cavity; the bottom of oil pocket is provided with belleville spring; be provided with two way sealed and the Y shape sealing of supporting ring and supporting ring both sides between piston and the accumulator body ... the material of the Y shape sealing of air cavity one side adopts carbon fiber+stainless steel spring, and air cavity is connected with pressure meter ".But this product also has deficiency in actual use: the one, and when oil pocket pressure during less than air cavity pressure, piston end surface will directly shake with the inboard inconsistent generation bump of end cap; The 2nd, when oil pocket pressure moment was too high, the piston other end was directly shaken with the inboard inconsistent generation bump of another end cap too; The 3rd, piston stroke immobilizes, and application range of products is narrower.For this reason, people expect to invent a kind of piston accumulator product of range-adjustable, enlarge its Applicable scope, satisfy voltage stabilizing and the energy-conservation demand of many kinds of liquid pressing system, simultaneously can avoid again piston both sides end face directly to clash into cylinder end caps, vibrations and noise when greatly reducing piston accumulator work.
The model utility content
The technical problems to be solved in the utility model be overcome that the bump vibrations that existing similar piston accumulator product exists are large, noise is high and piston stroke immobilizes, the defective of narrow application range and deficiency, a kind of piston accumulator product of range-adjustable is provided to society, enlarge its Applicable scope, satisfy voltage stabilizing and the energy-conservation demand of many kinds of liquid pressing system, simultaneously can avoid again piston both sides end face directly to clash into cylinder end caps, vibrations and noise when greatly reducing piston accumulator work.
The technological scheme that its technical problem that solves the utility model adopts is: the piston accumulator of range-adjustable comprises cylinder body and is located at the interior piston of cylinder body, described cylinder body two ends are respectively equipped with gas port end cap and hydraulic fluid port end cap, are respectively air cavity and oil pocket in the described piston both sides of correspondence; The circumferential outer surface of described piston is provided with a pair of guide ring, is provided with a plurality of seal rings between described a pair of guide ring; Described piston end surface is connected with stroke lever, and it is outside that described stroke lever stretches out in described cylinder body through described oil pocket by the central through bore of described hydraulic fluid port end cap, is provided with run distance caging device in the described stroke lever bar section that is positioned at described cylinder body outside; The exterior edge face of described hydraulic fluid port end cap is provided with sealing gland, is embedded with dust ring between described sealing gland center and the described stroke lever circumferential surface, is provided with oil sealing in the inboard of described dust ring.
Described hydraulic fluid port end cap radially be provided with the installation end face, described installation end face is provided with hydraulic pressure and connects the hole, described hydraulic pressure connects the described central through bore of aperture and is communicated with described oil pocket.
Described run distance caging device is position limit switch.
The piston accumulator of the utility model range-adjustable, piston end surface is connected with stroke lever, it is outside that described stroke lever stretches out in described cylinder body through described oil pocket by the central through bore of described hydraulic fluid port end cap, is provided with run distance caging device in the described stroke lever bar section that is positioned at described cylinder body outside.When hydraulic system was not opened, piston slided to the right until stroke lever bar section is hampered by run distance caging device, therefore the piston right side can not clashed into mutually with the hydraulic fluid port end cap; When hydraulic system starts and produce pulsation, piston left quick sliding, by the air cavity apparatus with shock absorbing, greater than air cavity pressure, then the bar section of stroke lever can be hampered by run distance caging device in advance such as fluctuation pressure, thereby has avoided the bump of piston left side and hydraulic fluid port end cap; In addition, the utility model can be by the scope of adjustment stroke limit stoper, make stroke lever operation in the interval of setting, both can enlarge its Applicable scope, realize the accumulator function of impact-absorbing, elimination pulsation, stored energy and steady pressure, can avoid again piston both sides end face directly to clash into cylinder end caps, greatly reduce operation vibration and noise.This product is particularly suitable in hydraulic control system pipeline application such as space flight, aviation, metallurgy, military project and vehicle-carried mobiles.
Description of drawings
Fig. 1 is the utility model product structure schematic diagram.
Fig. 2 is Fig. 1 right elevation.
Fig. 3 is Fig. 1 left view.
Fig. 4 is that the A of Fig. 1 is to the partial structurtes schematic diagram.
Embodiment
Such as Fig. 1, Fig. 2 and shown in Figure 3, the piston accumulator of the utility model range-adjustable comprises cylinder body 2 and is located at the piston 4 that slides movingly with it in the cylinder body 2 that two ends, described cylinder body 2 left and right sides are respectively equipped with gas port end cap 1 and hydraulic fluid port end cap 10; Described piston 4 both sides corresponding at described cylinder body 2 inner chambers are respectively air cavity 3 and oil pocket 7, air-filled pore 19 is established at the center of described gas port end cap 1, the end face of described air-filled pore 19 peripheries is provided with a plurality of connecting threads 18 in order to gas charging valve to be installed, and inert gas enters described air cavity 3 from described air-filled pore 19 and produces initial pressure.Described hydraulic fluid port end cap 10 is fixed in described cylinder body 2 ends by the gland swivel nut 11 that is rotatably connected in described cylinder body 2, and the end face of described gland swivel nut 11 is provided with a plurality of driving holes 20 and is used for spinning operation; The circumferential outer surface of described piston 4 is provided with a pair of guide ring 5, with guarantee and described cylinder body 2 between smooth sliding; Between described a pair of guide ring 5, be provided with a plurality of seal rings 6, effectively isolate between described air cavity 3 and the described oil pocket 7 and leak; Described piston 4 end face centers are connected with stroke lever 9 by nut 8, and described stroke lever 9 stretches out in described cylinder body 2 outsides through described oil pocket 7 by the central through bore 15 of described hydraulic fluid port end cap 10; The exterior edge face of described hydraulic fluid port end cap 10 is provided with sealing gland 13, be embedded with dust ring 14 between described sealing gland 13 centers and described stroke lever 9 circumferential surfaces, be provided with oil sealing 16 in the inboard of described dust ring 14, leak from described sealing gland 13 center clearance to prevent described oil pocket 7 interior media.
As shown in Figure 1 and Figure 4, end face 21 is installed in radially being provided with of described hydraulic fluid port end cap 10, and described installation end face 21 is provided with hydraulic pressure and connects hole 12, and described hydraulic pressure connects hole 12 peripheries and is provided with a plurality of Assembly interfaces 22; Described hydraulic pressure connects hole 12 and is communicated with described oil pocket 7 through described central through bore 15; Be provided with run distance caging device 17 in the described stroke lever 9 bar sections that are positioned at described cylinder body 2 outsides, described run distance caging device 17 can be position limit switch, can be trapezoidal nut also, or is installed on the baffle plate of fixture.
The below continues by reference to the accompanying drawings, the working principle of summary the utility model product.During use, the described air-filled pore 19 of high-pressure inert gas is entered described air cavity 3 produce initial pressure; When hydraulic system was not opened, piston 4 slided to the right until stroke lever 9 bar sections are hampered by run distance caging device 17, therefore piston 4 right sides can not clashed into mutually with hydraulic fluid port end cap 10; When hydraulic system starts and produce pulsation, piston 4 left quick sliding, by air cavity 3 apparatus with shock absorbings, greater than air cavity 3 pressure, then the bar section of stroke lever 9 can be hampered by run distance caging device 17 in advance, thereby has avoided the bump of piston 4 left sides and hydraulic fluid port end cap 10 such as fluctuation pressure at this moment; In addition, the utility model can be by the scope of adjustment stroke limit stoper 17, make stroke lever 9 operation in the interval of setting, both can enlarge its Applicable scope, realize the accumulator function of impact-absorbing, elimination pulsation, stored energy and steady pressure, can avoid again piston both sides end face directly to clash into cylinder end caps, greatly reduce operation vibration and noise.
Claims (3)
1. the piston accumulator of a range-adjustable, comprise cylinder body (2) and be located at the interior piston (4) of cylinder body (2), described cylinder body (2) two ends are respectively equipped with gas port end cap (1) and hydraulic fluid port end cap (10), are respectively air cavity (3) and oil pocket (7) in described piston (4) both sides of correspondence; The circumferential outer surface of described piston (4) is provided with a pair of guide ring (5), is provided with a plurality of seal rings (6) between described a pair of guide ring (5); It is characterized in that: described piston (4) end face is connected with stroke lever (9), described stroke lever (9) stretches out in described cylinder body (2) outside through described oil pocket (7) by the central through bore (15) of described hydraulic fluid port end cap (10), is provided with run distance caging device (17) being positioned at outside described stroke lever (9) the bar section of described cylinder body (2); The exterior edge face of described hydraulic fluid port end cap (10) is provided with sealing gland (13), be embedded with dust ring (14) between described sealing gland (13) center and described stroke lever (9) circumferential surface, be provided with oil sealing (16) in the inboard of described dust ring (14).
2. the piston accumulator of range-adjustable as claimed in claim 1, it is characterized in that: end face (21) is installed in radially being provided with of described hydraulic fluid port end cap (10), described installation end face (21) is provided with hydraulic pressure and connects hole (12), and described hydraulic pressure connects hole (12) and is communicated with described oil pocket (7) through described central through bore (15).
3. the piston accumulator of range-adjustable as claimed in claim 1 or 2, it is characterized in that: described run distance caging device (17) is position limit switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203836990U CN202707642U (en) | 2012-08-06 | 2012-08-06 | Adjustable travel piston type energy accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203836990U CN202707642U (en) | 2012-08-06 | 2012-08-06 | Adjustable travel piston type energy accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707642U true CN202707642U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203836990U Expired - Fee Related CN202707642U (en) | 2012-08-06 | 2012-08-06 | Adjustable travel piston type energy accumulator |
Country Status (1)
| Country | Link |
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| CN (1) | CN202707642U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358718A (en) * | 2014-11-17 | 2015-02-18 | 河南平高电气股份有限公司 | Piston accumulator |
| CN104533879A (en) * | 2015-01-14 | 2015-04-22 | 姜子涵 | Pressure stabilization compensation device and energy accumulator detection system with same |
| WO2018072234A1 (en) * | 2016-10-18 | 2018-04-26 | 杨富刚 | Energy storage structure |
| CN110578716A (en) * | 2018-06-08 | 2019-12-17 | 布柯玛蓄能器（天津）有限公司 | Extension rod displacement type piston energy accumulator |
-
2012
- 2012-08-06 CN CN2012203836990U patent/CN202707642U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358718A (en) * | 2014-11-17 | 2015-02-18 | 河南平高电气股份有限公司 | Piston accumulator |
| CN104358718B (en) * | 2014-11-17 | 2016-11-23 | 河南平高电气股份有限公司 | A kind of piston accumulator |
| CN104533879A (en) * | 2015-01-14 | 2015-04-22 | 姜子涵 | Pressure stabilization compensation device and energy accumulator detection system with same |
| CN104533879B (en) * | 2015-01-14 | 2017-05-24 | 吉林省云动力智能装备制造有限公司 | Pressure stabilization compensation device and energy accumulator detection system with same |
| WO2018072234A1 (en) * | 2016-10-18 | 2018-04-26 | 杨富刚 | Energy storage structure |
| GB2570022A (en) * | 2016-10-18 | 2019-07-10 | Yang Fugang | Energy storage structure |
| GB2570022B (en) * | 2016-10-18 | 2021-12-29 | Yang Fugang | Energy storage structure |
| CN110578716A (en) * | 2018-06-08 | 2019-12-17 | 布柯玛蓄能器（天津）有限公司 | Extension rod displacement type piston energy accumulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: ZTE East Xikou town Fenghua District Zhejiang city of Ningbo province No. 6 315000 Patentee after: NINGBO ASAHI HYDRAULIC Co.,Ltd. Address before: 315502 Zhejiang province Fenghua Xikou Town Industrial Zone Zongyan Road No. 2 Fenghua aolaier Hydraulic Co. Ltd. Patentee before: FENGHUA CHAORI HYDRAULIC Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20210806 |