CN205877053U - Two -way hydraulic absorber - Google Patents

Two -way hydraulic absorber Download PDF

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Publication number
CN205877053U
CN205877053U CN201620777900.1U CN201620777900U CN205877053U CN 205877053 U CN205877053 U CN 205877053U CN 201620777900 U CN201620777900 U CN 201620777900U CN 205877053 U CN205877053 U CN 205877053U
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CN
China
Prior art keywords
piston
head
stretch
chamber
housing
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Active
Application number
CN201620777900.1U
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Chinese (zh)
Inventor
刘小羊
李垂辉
李文喜
吴取专
舒兵
卢志和
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Xiangyang Boya Precision Industrial Equipments Co Ltd
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Xiangyang Boya Precision Industrial Equipments Co Ltd
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Abstract

The utility model provides a two -way hydraulic absorber, is including tensile buffering subassembly, compression buffering subassembly, tensile buffering subassembly is equipped with reset spring no. 2 including tensile pole, tensile pole overcoat, and there is sealed cavity at tensile pole middle part, and piston cavity places sealed chamber in, is equipped with the damping liquid in the piston cavity, compression buffering subassembly includes the piston rod, and piston rod is equipped with reset spring no. 1, and the piston rod afterbody that stretches into in the cushion chamber is equipped with the piston, and the piston separates piston cavity for having pole chamber, no pole chamber, have between sealed cavity and the piston cavity and be used for the intercommunication to have pole chamber and no pole chamber buffering passageway or cushion chamber. Compared with the prior art, the utility model discloses a reset spring assembles in opposite directions and realizes buffer two -way automatic re -setting under the load condition, can be applied to the operating mode that relies on hydraulic absorber self to reset under the load condition, adopts the effectual shortcoming of having solved the unable two -way damping buffering of current buffer of split type structure simultaneously.

Description

A kind of two-way hydraulic buffer
Technical field
This utility model relates to a kind of buffer.
Background technology
At present, various engineer equipments are just towards high speed, big load, the development of high-precision densification, and equipment is for the control of vibration Required precision is increasingly strict, and buffer can slow down equipment and run the impact occurred.Apply hydraulic bjuffer the most single on market To structure, equipment runs and only produces damping at single direction and form buffering, and does not possess auto-reset function under load condition. Meanwhile, existing product can not arrange buffer requirements according to damping operating mode or load.Along with quickly sending out of various professional equipments Exhibition, existing one-way damper cannot meet the damping of some special equipments and buffer requirements.
Summary of the invention
The purpose of this utility model is the above-mentioned deficiency in order to overcome prior art, and provides a kind of for realizing bidirectional buffering And the two-way hydraulic buffer of auto-reset function under load behavior.
The technical solution of the utility model is: include stretching Buffer Unit, compression Buffer Unit;Described stretching Buffer Unit Including stretch, being set with back-moving spring two outside stretch, have sealing chamber in the middle part of stretch, piston cavity is placed in sealing chamber In, piston cavity is built with damping fluid;Described compression Buffer Unit includes piston rod, is set with back-moving spring one outside piston rod, Stretching into the piston rod afterbody in cushion chamber equipped with piston, piston cavity is divided into rod chamber, rodless cavity by piston;Described annular seal space Have between room and piston cavity for being communicated with bar chamber and rodless cavity buffer channel or cushion chamber.
More than one damping hole screw it is equipped with on described rod chamber wall, rodless cavity wall, adaptive different on damping hole screw Specification damping hole, buffer channel is through damping hole connection rod chamber and rodless cavity.
Described stretching Buffer Unit, compression Buffer Unit are all loaded in housing, and described housing includes cylinder, is loaded on cylinder two The end cap of end;Described stretch head stretches out from shell one end, and described piston rod head stretches out from the housing other end.
Described piston rod head stretches out from housing through piston head.
Described piston head is step, including the enlarged head being placed in housing, stretch out with housing outside little head;Enlarged head Arranging annular groove, be provided with copper liner in annular groove, copper liner is formed by built-up welding, to reduce piston head operation frictional resistance;Little head And equipped with sealing ring one between housing;Equipped with sealing ring two between stretch head and housing.
Being provided with defining flange one in described housing, described stretch outer wall is provided with the limit convex corresponding with defining flange one Edge two;Back-moving spring two one end offsets with end cap, and back-moving spring two other end offsets with defining flange two;Back-moving spring one one end Offseting with piston head afterbody, back-moving spring one other end offsets with defining flange one.
Described stretch end has blind hole, is formed equipped with seal head and seal chamber at blind hole aperture;Described seal head with Equipped with sealing ring three at blind hole aperture.
Described blind pore wall is built-in with accumulation of energy medium.
Described piston outer wall is provided with at least one draw-in groove, and at least one piston ring is loaded in draw-in groove.
Described back-moving spring two, back-moving spring one are disk spring.
This utility model slows down rigid collision for various engineer equipments in running, and this utility model can be according to work Condition damping adjusting parameter, thus meet the bumper and absorbing shock under different loads impact.Compared with prior art, this utility model has Following advantage: first, assembles damping screw on piston cavity in this utility model, it is little that each damping screw is furnished with dimension damping Hole, can be according to applying working condition interchange assemble within the specific limits.Damping screw is possible not only to the multifarious requirement of adaptation condition, also The service life of plunger shaft can be improved.Only needing when damping hole damages to change damping screw, the maintainability of product is significantly Improve.Secondly, this utility model assembles in opposite directions realize buffer at load shape by being arranged on the dish-shaped-spring stack of front and back end Two-way automatic reset under state, can be applicable to rely in the loaded state the operating mode of hydraulic bjuffer reset itself, uses simultaneously and divide Body formula structure effectively solve existing buffer cannot bidirectional damper buffering shortcoming.On the other hand, this utility model uses Disk spring resets, and effectively solves the fragile problem of common cylinder spring, utilizes its buffering and two kinds of functional characteristics of carrying simultaneously Modular design, buffer overall dimensions be greatly reduced, save installing space.Again, this utility model uses dual-active plug ring Seal structure, tradition face contact type is optimized for line contact type, increase and be in sealing contact a little, effectively solve face contact type oil leak Problem.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of piston cavity.
Fig. 3 is the structural representation of damping screw.
Fig. 4 is the top view of Fig. 3.
Fig. 5 is the structural representation that dual-active plug ring seals.
Detailed description of the invention
In Fig. 1,2,3,4, this utility model mainly includes that piston head 1, end cap 2, piston rod 3, disk spring I are (the most multiple Position spring one) 4, seal head 5, sealing member 6, piston 7, piston cavity 8, disk spring II (also referred to as back-moving spring two) 9, stretch 10, damping screw 11, damping fluid 12, piston ring 13, accumulation of energy medium 14, cylinder 15.Disk spring I 4 and disk spring II 9 are paired Installing, disk spring material selects according to damping operating mode.Stretch 10 is fitted with cylinder 15 by disk spring II 9, end cap 2. Disk spring I 4 is installed fixing by piston head 1 and cylinder 15, and disk spring II 9 is installed fixing by end cap 2 and stretch 10. Piston head 1 uses with piston rod 3 threadeds, and piston head 1 assembles with cylinder 15 gap.Use between piston 7 and piston cavity 8 Dual-active plug ring 13 seals and coordinates, and tradition face contact type is optimized for line contact type, increases seal point, completely solves existing damping The oil leak problem that device exists.Damping fluid 12 is full of piston cavity 8, and piston cavity 8 assembles a series of damping screw 11, resistance Buddhist nun's screw 11 and piston cavity 8 use thread connection, the damping hole that damping screw adaptation diameter is different, can exist according to damping operating mode Regulation in certain limit, only need to change damping screw can realize.Between piston cavity 8 and stretch 10, cushion chamber is set, slow Rushing intracavity and put accumulation of energy medium, accumulation of energy medium material is acid/alkali-resistant rubber or sponge, can effectively make up rod chamber because running The change in volume produced, decreases inside and outside differential pressure.End cap 2 and cylinder 8 are by thread connection, end cap 2 and piston head 1, stretch 10 are provided with sealing ring.Seal head 5 is coupled by tapered thread with stretch 10, assembles between seal head 5 and piston rod 3 meanwhile Sealing member 6.
In Fig. 5, piston 7 arranging piston ring draw-in groove at two, piston ring 13 is assemblied in draw-in groove, it is possible to the most only set Put a big draw-in groove, two piston ring 13 row assemblings.
Utility model works process is as follows:
When buffer is by left side compression shock, piston head 1 promotes piston 7 to move, simultaneously by compression disk spring I 4 Damping fluid 11 under the compression of piston 7 along piston cavity 8 aperture flow out thus play cushioning effect.When piston 7 speed When decaying to 0, now disk spring I 4 is in compressive state, and piston head 1 recovers initial position under the effect of disk spring I 4.
When buffer is by right side tension impact, piston head 1, cylinder 13, piston rod remain stationary as, and stretch 10 is to the right Motion also departs from cylinder 13, simultaneously compression disk spring II 9.Plunger shaft damping fluid volume is gradually increased, and damping fluid is by piston Rod chamber enters rodless cavity thus realizes damping buffering.When the stretch 10 movement velocity rate of decay is zero, at compression dish Under the effect of spring II 9, stretch 10 resets and fits with cylinder 14.

Claims (10)

1. a two-way hydraulic buffer, it is characterised in that: include stretching Buffer Unit, compression Buffer Unit;Described stretching is delayed Rushing assembly and include stretch (10), be set with back-moving spring two (9) outside stretch (10), there is annular seal space at stretch (10) middle part Room, it is indoor that piston cavity (8) is placed in annular seal space, and piston cavity (8) is built with damping fluid (12);Described compression Buffer Unit includes Piston rod (3), is set with back-moving spring one (4) outside piston rod (3), stretch into piston rod (3) afterbody in cushion chamber equipped with piston (7), piston cavity (8) is divided into rod chamber, rodless cavity by piston (7);Between described sealing chamber and piston cavity (8) useful In connecting rod chamber and rodless cavity buffer channel or cushion chamber.
Two-way hydraulic buffer the most according to claim 1, it is characterised in that: on described rod chamber wall, rodless cavity wall all Being provided with more than one damping hole screw, damping hole on damping hole screw, buffer channel is through damping hole connection rod chamber and rodless cavity.
Two-way hydraulic buffer the most according to claim 1, it is characterised in that: described stretching Buffer Unit, compression buffering Assembly is all loaded in housing, and described housing includes cylinder (15), is loaded on the end cap at cylinder (15) two ends;Described stretch (10) head Portion stretches out from shell one end, and described piston rod (3) head stretches out from the housing other end.
Two-way hydraulic buffer the most according to claim 3, it is characterised in that: described piston rod (3) head is through piston head (1) stretch out from housing.
Two-way hydraulic buffer the most according to claim 4, it is characterised in that: described piston head (1) is step, including The enlarged head that is placed in housing, stretch out with housing outside little head;Enlarged head arranges annular groove, is provided with copper liner in annular groove;Microcephaly Equipped with sealing ring one between portion and housing;Stretch (10) between head and housing equipped with sealing ring two.
Two-way hydraulic buffer the most according to claim 5, it is characterised in that: it is provided with defining flange one in described housing, Described stretch (10) outer wall is provided with the defining flange two corresponding with defining flange one;Back-moving spring two (9) one end and end cap Offseting, back-moving spring two (9) other end offsets with defining flange two;Back-moving spring one (4) one end and piston head (1) afterbody phase Supporting, back-moving spring one (4) other end offsets with defining flange one.
Two-way hydraulic buffer the most according to claim 1, it is characterised in that: described stretch (10) end has blind Hole, is formed equipped with seal head (5) at blind hole aperture and seals chamber;Equipped with sealing ring three at described seal head (5) and blind hole aperture.
Two-way hydraulic buffer the most according to claim 7, it is characterised in that: described blind pore wall is built-in with accumulation of energy medium.
Two-way hydraulic buffer the most according to claim 1, it is characterised in that: described piston (7) outer wall is provided with at least One draw-in groove, at least one piston ring (13) is loaded in draw-in groove.
Two-way hydraulic buffer the most according to claim 1, it is characterised in that: described back-moving spring two (9), reset bullet Spring one (4) is disk spring.
CN201620777900.1U 2016-07-23 2016-07-23 Two -way hydraulic absorber Active CN205877053U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620777900.1U CN205877053U (en) 2016-07-23 2016-07-23 Two -way hydraulic absorber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620777900.1U CN205877053U (en) 2016-07-23 2016-07-23 Two -way hydraulic absorber

Publications (1)

Publication Number Publication Date
CN205877053U true CN205877053U (en) 2017-01-11

Family

ID=57698497

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620777900.1U Active CN205877053U (en) 2016-07-23 2016-07-23 Two -way hydraulic absorber

Country Status (1)

Country Link
CN (1) CN205877053U (en)

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