CN105972137A - Hydro-pneumatic spring cylinder externally provided with energy accumulator - Google Patents
Hydro-pneumatic spring cylinder externally provided with energy accumulator Download PDFInfo
- Publication number
- CN105972137A CN105972137A CN201610325351.9A CN201610325351A CN105972137A CN 105972137 A CN105972137 A CN 105972137A CN 201610325351 A CN201610325351 A CN 201610325351A CN 105972137 A CN105972137 A CN 105972137A
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- Prior art keywords
- cylinder
- cylinder barrel
- cavity
- hydro
- pneumatic spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Actuator (AREA)
Abstract
The invention discloses a hydro-pneumatic spring cylinder externally provided with an energy accumulator. The hydro-pneumatic spring cylinder externally provided with the energy accumulator comprises a first cylinder barrel, a second cylinder barrel with a first connector, an outer cylinder assembly with a second connector, a sealing piece, a disengagement preventing component and a guide key used for guiding the second cylinder barrel to move back and forth on the first cylinder barrel. The outer cylinder assembly is fixed to one end of the first cylinder barrel. The second cylinder barrel is arranged on the first cylinder barrel and located in the outer cylinder assembly. The disengagement preventing component is fixed to the other end of the first cylinder barrel and used for preventing the second cylinder barrel from sliding off from the first cylinder barrel. The sealing piece is used for sealing a third cavity formed between the second cylinder barrel and the outer cylinder assembly. An inner cavity and a transitional cavity are formed between the first cylinder barrel and the second cylinder barrel. The inner cavity is divided into a first cavity and a second cavity by a first oil isolation sleeve. The third cavity communicates with the transitional cavity, and the transitional cavity communicates with the first cavity or the second cavity. The hydro-pneumatic spring cylinder externally provided with the energy accumulator is simple in structure and low in cost.
Description
Technical field
The present invention relates to hydro-pneumatic spring cylinder technology field, particularly relate to the hydro-pneumatic spring cylinder of a kind of built-in accumulator.
Background technology
Existing hydro-pneumatic spring cylinder accumulator is that this kind of structure takes up room greatly at the outside external gas energy storage device of oil cylinder, and cost is high, oil cylinder needs oil pipe to connect between accumulator, and outside accumulator is exposed to, corroded by other materials such as air for a long time, add the risk of damage.
Summary of the invention
The technical problem to be solved in the present invention is to provide the hydro-pneumatic spring cylinder of a kind of accumulator and the built-in accumulator of oil cylinder one.
For solving the problems referred to above, the present invention provides the hydro-pneumatic spring cylinder of a kind of built-in accumulator, the hydro-pneumatic spring cylinder of described built-in accumulator to include the first cylinder barrel, be provided with the second cylinder barrel of first interface, outer shell assembly, sealing member, retaining member and for guiding the second cylinder barrel reciprocating feather key on the first cylinder barrel；Described outer shell assembly is fixed on one end of the first cylinder barrel；Described second cylinder barrel slides and is located on the first cylinder barrel and is positioned at outer shell assembly；Described retaining member is fixed on the other end of the first cylinder barrel, and is used for preventing the landing from the first cylinder barrel of the second cylinder barrel；Described sealing member is for sealing the 3rd cavity formed between the second cylinder barrel and outer shell assembly；Forming inner chamber and adapter cavity between described first cylinder barrel and the second cylinder barrel, inner chamber is divided into the first cavity and the second cavity, described 3rd cavity to connect with adapter cavity by the first oil removal set, described adapter cavity and the first cavity or the connection of the second cavity.
Further, described first cylinder barrel or the second cylinder barrel are provided with gathering sill and oil groove/opening, and described oil groove/opening is for connecting the 3rd cavity with adapter cavity, and described feather key slides in gathering sill.
Further, described retaining member was provided with oil groove/opening, and adapter cavity and the second cavity are connected by described oil-through hole/groove, and the first cylinder barrel is provided with intake interface.
Further, the oil through described first cylinder barrel connected with the first cavity.
Further, one end of described sealing member is fixed on described second cylinder barrel and along with the second cylinder barrel moves, and the other end of described sealing member is fixed on outer shell assembly.
Further, described outer shell assembly includes outer cylinder and dust ring, described outer cylinder includes the first outer cylinder, the second outer cylinder, described dust ring is fixed on described second outer cylinder on the second outer cylinder and is plugged on the first outer cylinder, one end of described sealing member is fixed between the first outer cylinder and the second outer cylinder, and described first outer cylinder is provided with the second interface.
Further, described first cylinder barrel is provided with oscillating bearing or spherojoint.
Further, described second cylinder barrel is provided with oscillating bearing or spherojoint.
Further, it is provided with the 3rd cylinder barrel and first gear plate washer in described second cavity, slide in described 3rd cylinder barrel and be provided with the second oil removal set, 3rd cylinder barrel, the second cylinder barrel and the second oil removal set combination form the 4th cavity, described second cylinder barrel is provided with the inlet suction port connected with the 4th cavity, and described first gear plate washer is for limiting the position of the first oil removal set.
Further, described 3rd cylinder barrel includes the 3rd cylinder body and the baffle plate packing ring being located on the 3rd cylinder body.
The hydro-pneumatic spring cylinder of the built-in accumulator of the present invention arranges the first oil removal set in the first cylinder barrel, cavity between first cylinder barrel and the second cylinder barrel is divided into the first cavity and the second cavity to form accumulator, eliminate oil cylinder to the coupling part between accumulator, reduce fault rate；Hydraulic oil directly acts on the first oil removal set simultaneously, adds susceptiveness.Simple in construction, has saved space, low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the better embodiment of the hydro-pneumatic spring cylinder of the built-in accumulator of the present invention.
Fig. 2 is the partial enlarged drawing of A in Fig. 1.
Fig. 3 is the partial enlarged drawing of B in Fig. 1.
Fig. 4 is the structural representation of another better embodiment of the hydro-pneumatic spring cylinder of the built-in accumulator of the present invention.
Fig. 5 is the structural representation of another better embodiment of the hydro-pneumatic spring cylinder of the built-in accumulator of the present invention.
Fig. 6 is the structural representation of another better embodiment of the hydro-pneumatic spring cylinder of the built-in accumulator of the present invention.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, the second cylinder barrel 2 of including the first cylinder barrel 1, being provided with first interface 21, it is provided with the outer shell assembly 3 of the second interface 311, sealing member 6, retaining member 5 and for guiding the second cylinder barrel 2 reciprocating feather key (not shown) on the first cylinder barrel 1.Described first oil removal set 4 slip is located in the first cylinder barrel 1；Described outer shell assembly 3 is fixed on one end of the first cylinder barrel 1；Described second cylinder barrel 2 slides and is located on the first cylinder barrel 1 and is positioned at outer shell assembly 3；Described retaining member 5 is fixed on the other end of the first cylinder barrel 1, and is used for preventing the landing from the first cylinder barrel 1 of the second cylinder barrel 2；Described sealing member 6 is for sealing the 3rd cavity 73 formed between the second cylinder barrel 2 and outer shell assembly 3.Forming inner chamber and adapter cavity 74 between described first cylinder barrel 1 and the second cylinder barrel 2, inner chamber is divided into the first cavity 71 and the second cavity 72 by the first oil removal set 4, and described 3rd cavity 73 connects with adapter cavity 74, and described adapter cavity 74 connects with the first cavity 71.Described first interface 21, for injecting hydraulic oil to the second cavity 72, can give the second cavity 72 replenisher force feed by the second interface 311, to be adjusted hydraulic pressure guarantee precision.It is equipped with oscillating bearing 91 on described first cylinder barrel 1 and the second cylinder barrel 2.
Described first cylinder barrel 1 is provided with oil groove 11, gathering sill (not shown) and intake interface 12, described oil groove 11 is for connecting the 3rd cavity 73 with adapter cavity 74, described feather key slides in gathering sill, described intake interface 12, for connecting to the first cavity 71, can inject gas to the first cavity 71 by this intake interface 12.In other embodiments, it is also possible to oil groove 11 is set to oilhole.Described feather key is fixed on the second cylinder barrel 2.In other embodiments, it is also possible to oil groove 11 and gathering sill are located on the second cylinder barrel 2, when gathering sill is located on the second cylinder barrel 2, feather key is located on the first cylinder barrel 1；Certainly can also only oil groove 11 or feather key be located on the second cylinder barrel 2.
Described retaining member 5 is provided with oil-through hole 51, and adapter cavity 74 is connected by described oil-through hole 51 with the second cavity 72.In other embodiments, it is also possible to oil-through hole 51 was set to oil groove 11.
Described sealing member 6 is in cyst membrane shape, and one end of sealing member 6 is fixed on described second cylinder barrel 2 and along with the second cylinder barrel 2 moves by clip, and the other end of described sealing member 6 is fixed on outer shell assembly 3.
Described outer shell assembly 3 includes outer cylinder 33 and dust ring 32, described outer cylinder includes the first outer cylinder 331 and the second outer cylinder 332, described dust ring 32 is fixed on the second outer shell 332, described second outer cylinder 332 anchor ear is on the first outer cylinder 331, and one end of sealing member 6 is fixed between the first outer cylinder 331 and the second outer cylinder 332, described second interface 311 is located on the first outer cylinder 331.
During use, first pass through intake interface 12 and inject gas to the first cavity 71, then inject hydraulic oil to the second cavity 72, adapter cavity 74 and the 3rd cavity 73 by first interface 21.When the second cylinder barrel 2 receives pressure, because hydraulic oil can not be compressed, therefore the first oil removal set 4 is toward compressed air, to realize the function of spring；After the stress on the second cylinder barrel 2 removes, gas compressed release in the first cavity 71, to promote the second cylinder barrel 2 to return to original state.First inner chamber that oil removal set 4 is located at the first cylinder barrel 1 and the second cylinder barrel 2 is formed is formed accumulator, eliminates oil cylinder to the coupling part between accumulator, reduce fault rate, hydraulic oil directly acts on the first oil removal set 4, adds susceptiveness, has saved space simultaneously, simple in construction, low cost.
Embodiment 2
As shown in Figure 4, the present embodiment difference from Example 1 is, adapter cavity 74 connects with the second cavity 72, and anti-delinking part is without oil-through hole 51 simultaneously, and remainder is the most same as in Example 1.
The oil through 15 connected with the first cavity 71 on described first cylinder barrel 1, described first oil removal set 4 slip is located in the second cylinder barrel 2.Described first interface 21 is for injecting gas to the second cavity 72, and described second interface 311 is for injecting hydraulic oil to the 3rd cavity 73, adapter cavity 74 and the first cavity 71.
Embodiment 3
As it is shown in figure 5, the present embodiment is with enforcement 1 difference, being additionally provided with the 3rd cylinder barrel 81 and the second oil removal set 82 in the second cavity 72, remainder is the most same as in Example 1.
It is provided with the 3rd cylinder barrel 81 and first gear plate washer 83 in described second cavity 72, slide in described 3rd cylinder barrel 81 and be provided with the second oil removal set 82,3rd cylinder barrel the 81, second cylinder barrel 2 and the second oil removal set 82 combination form the 4th cavity 75, described second cylinder barrel 2 is provided with the inlet suction port 25 connected with the 4th cavity 75, inflates in giving the 4th cavity 75 by this inlet suction port 25.Described 3rd cylinder barrel 81 includes the 3rd cylinder body 811 and the second baffle packing ring 812 being located on the 3rd cylinder body 811, and described second baffle packing ring 812 is fixed by screws on the 3rd cylinder body 811.Described second baffle packing ring 812 is used for preventing the second oil removal set 82 from skidding off in the 3rd cylinder barrel 81.Described first gear plate washer 83, for limiting the position of the first oil removal set 4, prevents the first oil removal set.
Under original state, the air pressure in the 4th cavity 75 is less than the air pressure in the first cavity 71.When the air pressure being more than in the 4th cavity 75 by ambient pressure, the second cylinder barrel 2 moves downward the gas in compression the 4th cavity 75.When the air pressure being more than in the first cavity 71 by ambient pressure, the second cylinder barrel 2 continues to move downward, the gas in compression the 4th cavity 75 and the first cavity 71.Compare the hydro-pneumatic spring steel of only one of which compaction cavum, increase effectively the cushion stroke of hydro-pneumatic spring cylinder.In other embodiments, in an initial condition, the air pressure in the 4th cavity 75 can also be set more than the air pressure in the first cavity 71.
Embodiment 4
Refer to Fig. 6, the present embodiment difference from Example 1 also resides in, and replaces oscillating bearing 91 with spherojoint 92, and remainder is the most same as in Example 1.
Described spherojoint 92 includes bulb, sphere block, dust ring and locking nut, and described bulb, sphere block, dust ring and locking nut are in overlap is located at mounting groove successively.Described bulb is provided with multiple lubrication groove, can play lubrication by oil addition in lubrication groove.Described sphere block forms cavity with mounting groove, and described bulb is located in cavity, and described bulb can rotate in this cavity.Described locking nut makes it fix with the first cylinder barrel 1 and the second cylinder barrel 2 in being arranged in mounting groove, thus bulb, sphere block and dust ring is limited in mounting groove.Bulb and sphere block are sealed in mounting groove by described dust ring, guarantee simultaneously bulb when rotating, dust ring remains to contact with bulb, it is to avoid extraneous dust entrance.
Use spherojoint 92 can alleviate the first cylinder barrel 1 and radial force of the second cylinder barrel 2.
These are only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention and accompanying drawing content to be made, is directly or indirectly used in other relevant technical fields, the most in like manner within the scope of patent protection of the present invention.
Claims (10)
1. the hydro-pneumatic spring cylinder of a built-in accumulator, it is characterised in that: described built-in energy storage
The hydro-pneumatic spring cylinder of device include the first cylinder barrel, be provided with the second cylinder barrel of first interface, outer shell assembly,
Sealing member, retaining member and the second cylinder barrel is reciprocating on the first cylinder barrel leads for guiding
Xiang Jian；Described outer shell assembly is fixed on one end of the first cylinder barrel；Described second cylinder barrel slides and is located at
On first cylinder barrel and be positioned at outer shell assembly；Described retaining member is fixed on another of the first cylinder barrel
End, and be used for preventing the landing from the first cylinder barrel of the second cylinder barrel；Described sealing member is for sealing the
The 3rd cavity formed between two cylinder barrels and outer shell assembly；Described first cylinder barrel and the second cylinder barrel it
Between form inner chamber and adapter cavity, inner chamber is divided into the first cavity and the second cavity by the first oil removal set,
Described 3rd cavity connects with adapter cavity, and described adapter cavity and the first cavity or the second cavity are even
Logical.
The hydro-pneumatic spring cylinder of built-in accumulator the most as claimed in claim 1, it is characterised in that:
Described first cylinder barrel or the second cylinder barrel are provided with gathering sill and oil groove/opening, and described oil groove/opening is used for
Being connected with adapter cavity by 3rd cavity, described feather key slides in gathering sill.
The hydro-pneumatic spring cylinder of built-in accumulator the most as claimed in claim 2, it is characterised in that:
Described retaining member was provided with oil groove/opening, and described oil-through hole/groove is by adapter cavity and the second cavity
Connect, and the first cylinder barrel is provided with intake interface.
The hydro-pneumatic spring cylinder of built-in accumulator the most as claimed in claim 2, it is characterised in that:
The oil through connected with the first cavity on described first cylinder barrel.
The hydro-pneumatic spring cylinder of built-in accumulator the most as claimed in claim 1, it is characterised in that:
One end of described sealing member is fixed on described second cylinder barrel and along with the second cylinder barrel moves, described
The other end of sealing member is fixed on outer shell assembly.
The hydro-pneumatic spring cylinder of built-in accumulator the most as claimed in claim 5, it is characterised in that:
Described outer shell assembly include outer cylinder and dust ring, described outer cylinder include the first outer cylinder,
Two outer cylinders, described dust ring is fixed on described second outer cylinder on the second outer cylinder and is plugged in
On one outer cylinder, one end of described sealing member be fixed on the first outer cylinder and the second outer cylinder it
Between, described first outer cylinder is provided with the second interface.
7. the hydro-pneumatic spring cylinder of the built-in accumulator as described in claim 1,2,3 or 4, its
It is characterised by: described first cylinder barrel is provided with oscillating bearing or spherojoint.
8. the hydro-pneumatic spring cylinder of the built-in accumulator as described in claim 1,2,3 or 4, its
It is characterised by: described second cylinder barrel is provided with oscillating bearing or spherojoint.
9. the hydro-pneumatic spring cylinder of the built-in accumulator as described in claim 1,2 or 3, it is special
Levy and be: in described second cavity, be provided with the 3rd cylinder barrel and first gear plate washer, described triplex
Slide in cylinder and be provided with the second oil removal set, the 3rd cylinder barrel, the second cylinder barrel and the second oil removal set combination shape
The 4th cavity, described second cylinder barrel is become to be provided with the inlet suction port connected with the 4th cavity, described
First gear plate washer is for limiting the position of the first oil removal set.
The hydro-pneumatic spring cylinder of built-in accumulator the most as claimed in claim 9, it is characterised in that:
Described 3rd cylinder barrel includes the 3rd cylinder body and the second baffle packing ring being located on the 3rd cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610325351.9A CN105972137B (en) | 2016-05-17 | 2016-05-17 | The hydro-pneumatic spring cylinder of built-in accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610325351.9A CN105972137B (en) | 2016-05-17 | 2016-05-17 | The hydro-pneumatic spring cylinder of built-in accumulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105972137A true CN105972137A (en) | 2016-09-28 |
| CN105972137B CN105972137B (en) | 2018-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610325351.9A Active CN105972137B (en) | 2016-05-17 | 2016-05-17 | The hydro-pneumatic spring cylinder of built-in accumulator |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01188733A (en) * | 1987-11-28 | 1989-07-28 | Hermann Hemscheidt Mas Fab Gmbh & Co | Fluid-pneumatic pressure impact-vibration damper |
| DE3934385A1 (en) * | 1989-10-14 | 1991-04-18 | Hemscheidt Maschf Hermann | Hydro-pneumatic cylindrical suspension - has hydraulic cylinder acting on two gas spring reservoirs, connected in parallel with each other |
| DE3942106A1 (en) * | 1989-12-20 | 1991-06-27 | Hemscheidt Maschf Hermann | Hydropneumatic piston-cylinder for vehicle suspension - makes use of movable cylinder free from mechanical stresses |
| CN201083245Y (en) * | 2007-06-15 | 2008-07-09 | 北京理工大学 | Oil gas spring with control valve |
| CN202402547U (en) * | 2011-12-22 | 2012-08-29 | 中国直升机设计研究所 | Stretched buffer |
| CN103527697A (en) * | 2013-11-01 | 2014-01-22 | 武汉天捷重型装备股份有限公司 | Hydro-pneumatic spring suspension cylinder |
| CN104564908A (en) * | 2014-12-31 | 2015-04-29 | 中船重工中南装备有限责任公司 | Buffer hydraulic cylinder |
-
2016
- 2016-05-17 CN CN201610325351.9A patent/CN105972137B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01188733A (en) * | 1987-11-28 | 1989-07-28 | Hermann Hemscheidt Mas Fab Gmbh & Co | Fluid-pneumatic pressure impact-vibration damper |
| DE3934385A1 (en) * | 1989-10-14 | 1991-04-18 | Hemscheidt Maschf Hermann | Hydro-pneumatic cylindrical suspension - has hydraulic cylinder acting on two gas spring reservoirs, connected in parallel with each other |
| DE3942106A1 (en) * | 1989-12-20 | 1991-06-27 | Hemscheidt Maschf Hermann | Hydropneumatic piston-cylinder for vehicle suspension - makes use of movable cylinder free from mechanical stresses |
| CN201083245Y (en) * | 2007-06-15 | 2008-07-09 | 北京理工大学 | Oil gas spring with control valve |
| CN202402547U (en) * | 2011-12-22 | 2012-08-29 | 中国直升机设计研究所 | Stretched buffer |
| CN103527697A (en) * | 2013-11-01 | 2014-01-22 | 武汉天捷重型装备股份有限公司 | Hydro-pneumatic spring suspension cylinder |
| CN104564908A (en) * | 2014-12-31 | 2015-04-29 | 中船重工中南装备有限责任公司 | Buffer hydraulic cylinder |
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| Publication number | Publication date |
|---|---|
| CN105972137B (en) | 2018-08-07 |
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Address after: D1-6-1, international student entrepreneurship Park, No. 71-1, Kecheng Road, Jiulongpo District, Chongqing 400039 Patentee after: Chongqing Daiwen Energy Technology Co.,Ltd. Address before: D1-6-1, international student entrepreneurship Park, No. 71-1, Kecheng Road, Jiulongpo District, Chongqing 400039 Patentee before: CHONGQING DEMENG HYDRAULIC MACHINERY Co.,Ltd. |
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