CN1328520C - Double action single degree of freedom hydraulic buffer - Google Patents
Double action single degree of freedom hydraulic buffer Download PDFInfo
- Publication number
- CN1328520C CN1328520C CNB2005100495151A CN200510049515A CN1328520C CN 1328520 C CN1328520 C CN 1328520C CN B2005100495151 A CNB2005100495151 A CN B2005100495151A CN 200510049515 A CN200510049515 A CN 200510049515A CN 1328520 C CN1328520 C CN 1328520C
- Authority
- CN
- China
- Prior art keywords
- hydraulic buffer
- single degree
- freedom hydraulic
- buffer
- end cover
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The present invention discloses a double action single degree of freedom hydraulic buffer, wherein a movable end cover is arranged in a fixed cylinder; two single action single degree of freedom hydraulic buffers are symmetrically arranged at both ends of the fixed cylinder; one single action single degree of freedom hydraulic buffer is fixed to a right end cover of the fixed cylinder, and the other single action single degree of freedom hydraulic buffer is fixed to a left end cover of the fixed cylinder; after passing through the left end cover, a movable cylinder and the cylindrical surface of a left circular bead of the movable end cover are connected into one body; the other single action single degree of freedom hydraulic buffer is positioned in the movable cylinder. The buffer can take single degree of freedom pressure drawing buffering to a controlled object and can realize vibration reduction and isolation to the single direction reciprocating vibration of various platforms. The present invention can be widely applied to various multidimensional force buffering structures and complex vibration reducing and isolating systems of the platforms.
Description
Technical field
The present invention relates to hydraulic buffer system, particularly a kind of tension and compression double action single degree of freedom hydraulic buffer.
Background technique
Hydraulic cushion is than superior many of buffering methods such as spring, friction, and it can not only absorb huge Impact energy and can design the buffering rule on request, working stability, reliable.At present, on the production line of speed up automation, all be widely used on engineering machinery transport facility and light industry, textile manufacturing machine, being provided with hydraulic bjuffer can increase output, increases the service life, optimum work and reduce noise.
Present hydraulic bjuffer is because structural reason is single-degree-of-freedom pressurized buffering basically, its buffering direction is unidirectional, the general damping of shocks that only is used in high-speed motion spare, yet under particular surroundings, need carry out passive then powerlessly when subtracting vibration isolation to controlled device, it can not realize tension and compression coupled vibrations buffering, thereby, can't follow the tracks of the continuous motion of controlled device, can't cushion continuously passive object.
Summary of the invention
The object of the present invention is to provide a kind of double action single degree of freedom hydraulic buffer, can carry out single-degree-of-freedom tension and compression buffering, realize of the vibration isolation that subtracts of various platform folk prescriptions to double vibrations to controlled device.
The technical solution used in the present invention is: movable end cover is housed in stationary cylinder, two single-acting single degree of freedom hydraulic buffer are installed at the two ends of stationary cylinder symmetrically, a single-acting single degree of freedom hydraulic buffer is fixed on the right end cap of stationary cylinder, the external part that is arranged in the piston rod of a single-acting single degree of freedom hydraulic buffer is fixedlyed connected with the right-hand member of movable end cover by Cock screw, another single-acting single degree of freedom hydraulic buffer is fixed on the left end cap of stationary cylinder, the external part that is arranged in the piston rod of another single-acting single degree of freedom hydraulic buffer is fixedlyed connected with the left end of movable end cover by Cock screw, movable cylinder links into an integrated entity with shoulder cylndrical surface, a movable end cover left side after passing left end cap, and another single-acting single degree of freedom hydraulic buffer is positioned at movable cylinder.
Described single-acting single degree of freedom hydraulic buffer, comprise cylinder body, buffer plunger, piston and piston rod from outside to inside successively, buffer plunger is embedded in the cylinder base center, the piston center has coniform hole, the outer rim that can match with buffer plunger and has axial damping hole, open at the radially damping hole on the piston rod and communicate with coniform hole on the piston, be positioned on the movable end cylndrical surface of piston rod of cylinder body, seal ring, reseting spring sleeve and Returnning spring are housed from the inside to the outside successively.
The present invention compares with background technique, and the useful effect that has is:
The present invention has inherited the advantage of hydraulic cushion, and on the basis of common single-acting single degree of freedom hydraulic buffer, adopt simple compact desirable conceptual design to finish double action single degree of freedom hydraulic buffer, this buffer can carry out single-degree-of-freedom tension and compression buffering to controlled device, can follow the tracks of the continuous motion of controlled device, thereby can realize of the vibration isolation that subtracts of various platform folk prescriptions to double vibrations, it is the beginning that single-acting single-degree-of-freedom hydraulic cushion changes to the double action single degree of freedom hydraulic cushion, be that the conventional hydraulic buffer is broken through, can be widely used in various multidimensional power buffer structures, and the coupled vibrations of platform subtracts in the vibrating isolation system.
Description of drawings
Fig. 1 is a structure principle chart of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1.
Among the figure: 1, movable cylinder, 2, the attaching nut, 3, left end cap, 4, stationary cylinder tightening nut, 5, stationary cylinder, 6, right end cap, 7, movable end cover, 8, Cock screw, 9, piston rod, 10, Returnning spring, 11, reseting spring sleeve, 13, piston, 14, buffer plunger, 15, cylinder body, 16, the single-acting single degree of freedom hydraulic buffer.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As Fig. 1, Figure 2 shows that a kind of double action single degree of freedom hydraulic buffer, movable end cover 7 is housed in stationary cylinder 5, movable end cover 7 and stationary cylinder 5 Spielpassung, single-acting single degree of freedom hydraulic buffer 16 is equipped with at the two ends of movable end cover 7 symmetric type respectively, piston rod 9, an end of 17 embeds the two ends, the left and right sides of movable end cover 7 respectively, fixedly connected by tightening screw 8, a single-acting single degree of freedom hydraulic buffer 16 matches with the right end cap 6 of stationary cylinder 5 by being threaded, and it is fixing by attaching nut 2, another single-acting single degree of freedom hydraulic buffer 16 matches by the left end cap 3 that is threaded with stationary cylinder 5, and it is fixing by attaching nut 2, movable cylinder 1 links into an integrated entity with movable end cover 7 left shoulder cylndrical surface after passing arc-shaped slot on the left end cap 3, the two is for being threaded, and single-acting single degree of freedom hydraulic buffer 16 is nested in the movable cylinder 1.
Single-acting single degree of freedom hydraulic buffer 16 comprises cylinder body 15, buffer plunger 14, piston 13 and piston rod 9 from outside to inside successively.Buffer plunger 14 is embedded in cylinder body 15 bottom centre, with cylinder body 15 interference fit, piston 13 centers have the coniform hole that can match with buffer plunger, outer rim has axial damping hole, open at the radially damping hole on the piston rod 12 and communicate with coniform hole on the piston 13, stretch out cylinder body 15 outer piston rod heads and be processed with annular groove, fixedly connected with movable end cover 7 by Cock screw, on piston rod 9 the other end cylndrical surface in cylinder body 15, seal ring 12 is housed from the inside to the outside successively, reseting spring sleeve 11 and Returnning spring 10, reseting spring sleeve 11 matches with seal ring 12, Returnning spring 10 1 ends withstand on the reseting spring sleeve 11, and the other end withstands on the top of cylinder body 5.
Two single-acting single degree of freedom hydraulic buffer 16, are regulated its position and are made its precompressed during installation with respect to the adjustable positions of left and right end cap, stressed with balancing activity end cap 7, and make movable end cover 7 remain on the middle part of stationary cylinder 5.
Working principle of the present invention is as follows:
Double action single degree of freedom hydraulic buffer is to design on the basis of single-acting single degree of freedom hydraulic buffer, it is made up of internal hydraulic pressure buffer 16 and outer portion connecting structure on the whole, movable cylinder 1 connects with controlled device by external connection device, stationary cylinder 5 is installed on support or other fixed block by external screw-thread, and fixing by stationary cylinder tightening nut 4.Two cover single-acting single degree of freedom hydraulic buffer 16 are connected with right end cap 6 with left end cap 3 respectively by its surperficial screw thread and attaching nut 2, left end cap 3 and right end cap 6 are to be threaded with stationary cylinder, movable end cover is connected by the piston rod 9 of Cock screw 8 with two hydraulic bjuffers, simultaneously, movable cylinder 1 connects with the threaded one end of movable end cover 7, drives movable end cover 7 axial straight line in stationary cylinder 5 and moves.
This hydraulic bjuffer can bear the tension and compression buffering, and its tension buffering and pressurized cushioning principle are basic identical:
When buffer is subjected to pulling force, movable cylinder 1 drives movable end cover 7 to left movement, the piston rod 9 of a single-acting single degree of freedom hydraulic buffer 16 on the left side is stressed to left movement, piston left side fluid pressurized, tapered throttle orifice on piston and damping hole flow into the piston right side, because the cone structure of throttle orifice, when pulling force strong more, piston rod 9 amount of exercise left is many more, self-regulation throttle orifice opening degree on the piston 13 is more little, keeps invariable because damping hole in parallel guarantees variable throttling valve port two ends pressure reduction, so just more little by the flow of throttle orifice, the buffer function of buffer is just strong more, otherwise weak more when percussion, the aperture of self-regulated knothole is just big more, and buffer function just reduces relatively, after buffering finishes, piston rod is resetted thereby Returnning spring is extruded into the left side to the fluid on piston right side.
When buffer is stressed, movable cylinder 1 drives movable end cover 7 and moves right, the piston rod 17 of a single-acting single degree of freedom hydraulic buffer 16 on the right is stressed and moves right, piston right side fluid pressurized, throttle orifice on piston and damping hole flow into piston left side oil pocket, because the cone structure of throttle orifice, when pulling force strong more, piston rod 17 amount of exercise left is many more, self-regulation throttle orifice opening degree on the piston 18 is more little, keeps invariable because damping hole in parallel guarantees variable throttling valve port two ends pressure reduction, so just more little by the flow of throttle orifice, the buffer function of buffer is just strong more, otherwise weak more when percussion, the aperture of self-regulated knothole is just big more, and buffer function just reduces relatively, after buffering finishes, piston rod is resetted thereby Returnning spring is extruded into the right side to the fluid in piston left side.
Thus, the present invention has realized the tension and compression of controlled device are cushioned by special structural design, has filled up common hydraulic bjuffer and can only cushion the blank that can not follow the tracks of the controlled device continuous motion to pressurized by folk prescription.
Above-mentioned embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.
Claims (2)
1, a kind of double action single degree of freedom hydraulic buffer, it is characterized in that: movable end cover (7) is housed in stationary cylinder (5), two single-acting single degree of freedom hydraulic buffer (16) are installed at the two ends of stationary cylinder (5) symmetrically, a single-acting single degree of freedom hydraulic buffer (16) is fixed on the right end cap (6) of stationary cylinder (5), the external part that is arranged in the piston rod (17) of a single-acting single degree of freedom hydraulic buffer (16) is fixedlyed connected with the right-hand member of movable end cover (7) by Cock screw (8), another single-acting single degree of freedom hydraulic buffer (16) is fixed on the left end cap (3) of stationary cylinder (5), the external part that is arranged in the piston rod (9) of another single-acting single degree of freedom hydraulic buffer (16) is fixedlyed connected with the left end of movable end cover (7) by Cock screw (8), movable cylinder (1) passes left end cap (3) back and links into an integrated entity with the left shoulder of movable end cover (7) cylndrical surface, and another single-acting single degree of freedom hydraulic buffer (16) is positioned at movable cylinder (1).
2, a kind of double action single degree of freedom hydraulic buffer according to claim 1, it is characterized in that: described single-acting single degree of freedom hydraulic buffer (16), comprise cylinder body (15) from outside to inside successively, buffer plunger (14), piston (13) and piston rod (9), buffer plunger (14) is embedded in cylinder body (15) bottom centre, piston (13) center has the coniform hole that can match with buffer plunger, outer rim has axial damping hole, open at the radially damping hole on the piston rod (12) and communicate with coniform hole on the piston (13), be positioned on the movable end cylndrical surface of piston rod (9) of cylinder body (15), seal ring (12) is housed from the inside to the outside successively, reseting spring sleeve (11) and Returnning spring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100495151A CN1328520C (en) | 2005-03-30 | 2005-03-30 | Double action single degree of freedom hydraulic buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100495151A CN1328520C (en) | 2005-03-30 | 2005-03-30 | Double action single degree of freedom hydraulic buffer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1667291A CN1667291A (en) | 2005-09-14 |
| CN1328520C true CN1328520C (en) | 2007-07-25 |
Family
ID=35038531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100495151A Expired - Fee Related CN1328520C (en) | 2005-03-30 | 2005-03-30 | Double action single degree of freedom hydraulic buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1328520C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156548A (en) * | 2013-07-29 | 2015-12-16 | 朱海燕 | Full-automatic hydraulic molding machine controlled by processor |
| CN105480728A (en) * | 2013-07-29 | 2016-04-13 | 蒋超 | Work method of hollow block production line based on green brick stacking operation robot |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2953137A1 (en) * | 1979-09-06 | 1981-03-12 | Boge Gmbh, 5208 Eitorf | Hydraulic damper with coaxial bellows - has bellows covers coupled by bolt and pre-loaded spring |
| CN2353963Y (en) * | 1998-12-23 | 1999-12-15 | 苏木标 | Single-cylinder double-way cylinder type hydraulic damping device |
| US6142270A (en) * | 1996-01-09 | 2000-11-07 | Freyssinet International (Stup) | Tie device for transmitting force between two structural elements |
| CN2680927Y (en) * | 2003-12-29 | 2005-02-23 | 陆杰 | After-damping-changed shock reducer |
| CN2783043Y (en) * | 2005-03-30 | 2006-05-24 | 浙江大学 | Double-action sinlge-freedom hydraulic damper |
-
2005
- 2005-03-30 CN CNB2005100495151A patent/CN1328520C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2953137A1 (en) * | 1979-09-06 | 1981-03-12 | Boge Gmbh, 5208 Eitorf | Hydraulic damper with coaxial bellows - has bellows covers coupled by bolt and pre-loaded spring |
| US6142270A (en) * | 1996-01-09 | 2000-11-07 | Freyssinet International (Stup) | Tie device for transmitting force between two structural elements |
| CN2353963Y (en) * | 1998-12-23 | 1999-12-15 | 苏木标 | Single-cylinder double-way cylinder type hydraulic damping device |
| CN2680927Y (en) * | 2003-12-29 | 2005-02-23 | 陆杰 | After-damping-changed shock reducer |
| CN2783043Y (en) * | 2005-03-30 | 2006-05-24 | 浙江大学 | Double-action sinlge-freedom hydraulic damper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1667291A (en) | 2005-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6311962B1 (en) | Shock absorber with external air cylinder spring | |
| WO2017012112A1 (en) | Oil damper for train | |
| CN104047987B (en) | A kind of Novel oil gas spring | |
| CN103883661B (en) | A kind of variable vibration damper of sliding valve style damping and method of work coordinating pneumatic spring | |
| CN102720795A (en) | Hydro-pneumatic spring for amphibious vehicles and hydraulic regulating device for hydro-pneumatic spring for amphibious vehicle | |
| CN102748422B (en) | Stroke sensitive damping adjustable shock absorber | |
| CN101315112A (en) | Viscous damping device with axial position limiter | |
| CN206972817U (en) | A kind of spring air damper | |
| CN100342151C (en) | Hydraulic buffer of complex vibration with mechanism in six degree of freedom based on parallel connection | |
| CN201273355Y (en) | Self-protecting variable-damping hydraulic buffer | |
| CN1328520C (en) | Double action single degree of freedom hydraulic buffer | |
| CN106015439A (en) | Large-load and low-rigidity speed type limiting device | |
| CN105114513A (en) | Speed and displacement dual-lock pressure-limiting type viscous damper | |
| KR20020049528A (en) | Shock absorber | |
| CN202612463U (en) | High and low speed two-way damping adjustable mechanical-type shock absorber | |
| CN2835699Y (en) | Hydro-pneumatic buffer | |
| CN102678810B (en) | High/low speed bidirectional damping adjustable mechanical damper | |
| CN2783043Y (en) | Double-action sinlge-freedom hydraulic damper | |
| CN104500636A (en) | Sensing variable-frequency vibration absorber | |
| CN204403249U (en) | A kind of double-acting shock absorber | |
| CN204419758U (en) | A kind of buffering hydraulic cylinder | |
| JP5539629B2 (en) | Piston cylinder assembly | |
| CN104963908A (en) | Actuator cylinder of integrated variable damping device | |
| CN112253665B (en) | Two-stage vibration isolation buffer | |
| CN203743118U (en) | Hydraulic cylinder with buffering structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |