CN106246790A - Symmetrical expression large hydraulic antivibrator - Google Patents
Symmetrical expression large hydraulic antivibrator Download PDFInfo
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- CN106246790A CN106246790A CN201610742803.3A CN201610742803A CN106246790A CN 106246790 A CN106246790 A CN 106246790A CN 201610742803 A CN201610742803 A CN 201610742803A CN 106246790 A CN106246790 A CN 106246790A
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- piston rod
- resistance cylinders
- antivibrator
- auxiliary oil
- cylinders
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- 238000013016 damping Methods 0.000 claims abstract description 60
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000005202 decontamination Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000003588 decontaminative effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 241001347978 Major minor Species 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- CPSYWNLKRDURMG-UHFFFAOYSA-L hydron;manganese(2+);phosphate Chemical compound [Mn+2].OP([O-])([O-])=O CPSYWNLKRDURMG-UHFFFAOYSA-L 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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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
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
-
- 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
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention relates to a kind of symmetrical expression large hydraulic antivibrator.It solve the problems such as existing antivibrator sealing difference.Including resistance cylinders, cylinder cap, two independent plunger shaft, piston body and piston rod, resistance cylinders is cylindrically, and piston rod is extended along the axial line of resistance cylinders, it is circumferentially with some auxiliary oil cylinders at resistance cylinders, and it is provided with oil return resetting structure in auxiliary oil pocket, some it is positioned at piston rod axial line week built-in orifice valve group to the periphery being circumferentially with of resistance cylinders, and auxiliary oil cylinder and built-in orifice valve group are distributed ringwise and are arranged on piston rod axial line week to the periphery.Advantage is: use totally-enclosed, holohedral symmetry, single-piston rod, ring to put the auxiliary oil cylinder of march-past, independent overall easy-dismount damping valve block structure.
Description
Technical field
The invention belongs to damping device technical field, especially relate to a kind of symmetrical expression large hydraulic antivibrator.
Background technology
Antivibrator is that one is mainly used in coming vibration damping energy dissipating in space flight, aviation, building, bridge, railway, automobile and other industries
Device, it is mainly to provide the resistance of motion, depletion kinergety.Typically it is used in the many need of main equipment or nuclear energy field
Large hydraulic antivibrator to be used, but existing large hydraulic antivibrator also exists many deficiencies, and such as, structure is the tightest
Gathering, need independent external auxiliary cylinder, closure is poor, and the reliability of antivibrator is low, so easily causes under antivibrator damping
Fall, greatly threatens the safety of the equipment such as main equipment or nuclear energy equipment.
In order to solve the problem that prior art exists, people have carried out long-term exploration, it is proposed that solution miscellaneous
Scheme.Such as, Chinese patent literature disclose a kind of nuclear power station main equipment support large hydraulic antivibrator [application number:
201510552695.9], including: housing unit；Described housing unit is provided with cavity volume；Oil cylinder；Described oil cylinder is placed in described appearance
Intracavity；Oil cylinder includes front shroud and back shroud；Described front shroud and described back shroud are connected by screw or bolt, and the two it
Between leave space；Piston or piston rod；Described piston or piston rod run through described front shroud, and one end is placed in described space,
One end is positioned at outside described space through described front shroud；Auxiliary oil cylinder, is symmetrically distributed in around described oil cylinder；Fork-shaped plunger；After
Cylinder cap；Described back cylinder cover is arranged on described housing unit；Described back cylinder cover is provided with oscillating bearing；Oscillating bearing passes through bearing
Pressing plate is arranged on described back cylinder cover.Such scheme to some extent solves the problem of existing antivibrator sealing difference, but
It is the compactest to be that the program still cannot fundamentally solve structure, and the reliability of antivibrator is low, easily causes antivibrator damping effect
The problem that fruit declines.
Summary of the invention
It is an object of the invention to for the problems referred to above, it is provided that a kind of simple and reasonable, the symmetrical expression of compact conformation is large-scale
Hydraulic damper.
For reaching above-mentioned purpose, present invention employs following technical proposal: this symmetrical expression large hydraulic antivibrator, including tool
Having the resistance cylinders of inner chamber, described resistance cylinders one end to close, the other end is uncovered, and being provided with on resistance cylinders can be by uncovered envelope
The cylinder cap closed, sliding axially in described resistance cylinders to be provided with is positioned in inner chamber and inner chamber can be separated into two independent pistons
The piston body in chamber, and described piston body connects and has the piston rod being arranged on cylinder cap and extending to outside resistance cylinders one end,
It is characterized in that, cylindrically, and described piston rod is extended along the axial line of resistance cylinders for described resistance cylinders,
Resistance cylinders be circumferentially with some have be positioned at piston rod axial line week to the periphery and along the axially extended auxiliary oil of resistance cylinders
It is provided with oil return resetting structure in the auxiliary oil cylinder in chamber, and described auxiliary oil pocket, some is positioned at piston being circumferentially with of resistance cylinders
Bar axial line week built-in orifice valve group to the periphery, and described auxiliary oil cylinder and built-in orifice valve group be distributed setting ringwise
Piston rod axial line week to the periphery.This antivibrator uses full-closed structure, and antivibrator complete machine critical piece is all included in resistance
In Buddhist nun's cylinder body, effectively prevent piston rod and damaged by outside liquid, dust and other foreign bodies.The exposed parts such as resistance cylinders
Use the preferable austenitic stainless steel of antiseptic power, and this antivibrator has major-minor oil cylinder Contiuum type structure, owning of antivibrator
Load bearing element along piston rod circular symmetric be distributed, when making antivibrator run, its damping load completely on piston rod central axis,
Auxiliary oil cylinder dividing row be arranged in master cylinder peripheral, making machine shape is Cylindrical symmetry, it is not necessary to conventional damper the most external
Auxiliary cylinder, additionally antivibrator exposed parts surface is through machining, has high light cleanliness, it is easy to cleaning and decontamination process,
Greatly reducing decontamination difficulty during in-service maintenance, and this antivibrator uses non-welding structure, damper body part is nothing
Welding Structure.All parts use forging overall processing, are fitted together by high precision screw, and effectively prevent weldment can
The deformation of energy generation, deposition defect, the simultaneously more convenient mass production of non-welding structure, it is simple to disintegrate and part during in-service maintenance
Change.
In above-mentioned symmetrical expression large hydraulic antivibrator, described auxiliary oil cylinder and built-in orifice valve group staggered one by one and
It is uniformly arranged on the axial line week of piston rod to the periphery.
In above-mentioned symmetrical expression large hydraulic antivibrator, in described oil return resetting structure includes being arranged on auxiliary oil cylinder and
Being positioned at the oil return piston of auxiliary oil pocket, described auxiliary oil pocket one end extends to resistance cylinders one end end face and forms opening, and described
Auxiliary oil cylinder one end be provided with and the return spring of closure of openings can be covered, and described return spring capping is provided with oil return piston
Return spring, described auxiliary oil pocket connects the interface channel being radially arranged along resistance cylinders.
In above-mentioned symmetrical expression large hydraulic antivibrator, described built-in orifice valve group includes axially extending arranging resistance
Buddhist nun's cylinder body outer circumferential and be positioned at piston rod axial line week damping cavity to the periphery, described damping cavity one end extends to cylinder cap one
Side and being blocked by damping cavity plug, is provided with in resistance cylinders outer circumferential and some extends radially through the damping slot in damping cavity, institute
Orifice valve assembly it is provided with in the damping slot stated.
In above-mentioned symmetrical expression large hydraulic antivibrator, described damping slot all in wide outside and narrow inside T-shaped, and each
The quantity of damping slot that damping cavity is connected is two, two damping slots respectively with plunger shaft one_to_one corresponding and being connected.I.e. use
Built-in orifice valve group, it is ensured that the damage that in use orifice valve is not easily susceptible to, orifice valve is that to form complete machine static, dynamically
The critical component of performance.According to computing formula of surging, wherein orifice valve bore dia, length computation are particularly critical, to this, in development
Abandon the small damping principle that antivibrator generally uses in early days, but use the T-shaped spiral damping groove with innovative significance.Two
Person compares, and the former is easily caused blocking because valve opening is minimum, and is difficult to processing, detection, and spiral damping groove structure then have found damping
Valve opening diameter and the best joint of length, reduce the damping hole requirement to dielectric clean degree, improve manufacturing process performance.
The most built-in orifice valve group once mounting, after overall performance test passes, its damping characteristic is difficult to change, effective guarantee
The reliability of antivibrator.
In above-mentioned symmetrical expression large hydraulic antivibrator, described resistance cylinders is provided with away from the one end with piston rod
It is connected by bearing pin and the first oscillating bearing on split type key seat, and described split type key seat, and the first described joint shaft
Hold one end and be provided with key seat location-plate.
In above-mentioned symmetrical expression large hydraulic antivibrator, described piston rod extends to the one end outside resistance cylinders even
It is connected to second joint bearing, and is provided with stroke indicating arm between piston rod and resistance cylinders, between piston rod and resistance cylinders
It is additionally provided with the stroke lock assembly that piston rod and resistance cylinders axially can be positioned.It is carved with 10mm at cylinder or piston rod end
The scale at interval, confirms its piston rod stroke and position when can facilitate antivibrator inservice inspection.
In above-mentioned symmetrical expression large hydraulic antivibrator, described stroke lock assembly includes removable with piston rod
The locking seat being connected, is equipped with the locking bolt being detachably connected with resistance cylinders, and described locking in described locking seat
Bolt is connected with locking seat by bolt and nut respectively.
In above-mentioned symmetrical expression large hydraulic antivibrator, described cylinder cap passes through hexagon socket head cap screw and resistance cylinders phase
Connect, and between described cylinder cap and piston rod, be provided with piston rod guide ring.Well-designed sealing system: in order to ensure reliably
Anti-leak performance, the well-designed multi-seal system of antivibrator model machine that this project is developed, seal shape, position is passed through
Special design optimization, key position is provided with 2～3 seal structures, moving between piston and oil cylinder, between piston rod and cylinder cap
Seal position and be provided with copper sheathing guider, prevent abrasion or hydraulic performance decline that antivibrator causes by offset loading force.Exclusive oil return is lived
The holding that plug can produce small back pressure, beneficially dynamic property to hydraulic system is reliable with seal.Material selection reliably: liquid
The exposed parts such as resistance cylinders of pressure antivibrator, cylinder cap etc. all uses austenitic stainless steel material to make, remaining parts such as piston
Bar, plunger, monoblock type key seat etc. use steel alloy or martensitic stain less steel to make, threaded portion plating manganese phosphate, thus strengthen zero
The anticorrosion of part and anti-wear performance.
In above-mentioned symmetrical expression large hydraulic antivibrator, described resistance cylinders is radially provided with and is connected with damping cavity
Oil return needle.
Compared with prior art, the advantage of this symmetrical expression large hydraulic antivibrator is: simple in construction, uses full envelope
Close, holohedral symmetry, single-piston rod, ring put the auxiliary oil cylinder of march-past, independent overall easy-dismount damping valve block structure, and compact conformation is built-in
Formula orifice valve group once mounting, after overall performance test passes, its damping characteristic is difficult to change, effective guarantee antivibrator
Reliability, it is easy to cleaning and decontamination process, greatly reduce in-service maintenance time decontamination difficulty, it is simple to during in-service maintenance disintegrate with
Part exchanging, anticorrosion and anti-wear performance are good.
Accompanying drawing explanation
The structure sectional view that Fig. 1 provides for the present invention.
The partial structurtes sectional view that Fig. 2 provides for the present invention.
In figure, resistance cylinders 1, cylinder cap 11, hexagon socket head cap screw 111, piston rod guide ring bolt 112, piston body 2, plunger shaft
21, piston rod 22, auxiliary oil cylinder 3, auxiliary oil pocket 31, oil return piston 32, return spring capping 33, return spring 34, interface channel 35,
Built-in orifice valve group 4, damping cavity 41, damping cavity plug 42, damping slot 43, orifice valve assembly 44, split type key seat 5, bearing pin
51, the first oscillating bearing 52, key seat location-plate 53, second joint bearing 6, stroke indicating arm 7, stroke lock assembly 8, locking
Seat 81, locking bolt 82, bolt and nut 83, oil return needle 9.
Detailed description of the invention
The present invention will be further described in detail with detailed description of the invention below in conjunction with the accompanying drawings.
As shown in Figure 1-2, this symmetrical expression large hydraulic antivibrator, including having the resistance cylinders 1 of inner chamber, resistance cylinders 1
One end is closed, and the other end is uncovered, is provided with and can be slid axially in resistance cylinders 1 by the cylinder cap 11 of uncovered closing on resistance cylinders 1
It is provided with the piston body 2 being positioned in inner chamber and inner chamber being separated into two independent plunger shaft 21, and piston body 2 connection wears
On cylinder cap 11 and extend to the piston rod 22 outside resistance cylinders 1 one end, resistance cylinders 1 cylindrically, and piston rod 22 edge
The axial line of resistance cylinders 1 is extended, resistance cylinders 1 be circumferentially with some have be positioned at piston rod 22 axial line circumference
Periphery and the auxiliary oil cylinder 3 along the axially extended auxiliary oil pocket 31 of resistance cylinders 1, and in auxiliary oil pocket 31, it is provided with oil return resetting structure,
Resistance cylinders 1 be circumferentially with some piston rod 22 axial line week built-in orifice valve groups 4 to the periphery that is positioned at, and auxiliary oil cylinder 3
It is distributed ringwise with built-in orifice valve group 4 and is arranged on piston rod 22 axial line week to the periphery, auxiliary oil cylinder 3 and built-in orifice valve
Group 4 is staggered one by one and is uniformly arranged on the axial line week of piston rod 22 to the periphery, and this antivibrator uses full-closed structure, antivibrator
Complete machine critical piece is all included in resistance cylinders 1, effectively prevent piston rod 22 and suffers outside liquid, dust and other are different
The damage of thing.Resistance cylinders 1 exposed parts such as grade uses the preferable austenitic stainless steel of antiseptic power, and this antivibrator has major-minor
Oil cylinder Contiuum type structure, all load bearing elements of antivibrator are distributed along piston rod circular symmetric, when making antivibrator run, its damping
3 points of row of auxiliary oil cylinder, completely on piston rod 22 central axis, are arranged in master cylinder peripheral by load, and making machine shape is cylinder pair
Claim, it is not necessary to the independent external auxiliary cylinder of conventional damper, additionally antivibrator exposed parts surface is through machining, has relatively
Best bright finish, it is easy to cleaning and decontamination process, greatly reduces decontamination difficulty during in-service maintenance, and this antivibrator uses solderless
Access node structure, damper body part is non-welding structure.All parts use forging overall processing, by high precision screw group
It is fitted together, effectively prevent the issuable deformation of weldment, deposition defect, simultaneously non-welding structure more convenient batch metaplasia
Produce, it is simple to disintegrate and part exchanging during in-service maintenance.
Specifically, in the oil return resetting structure in the present embodiment includes being arranged on auxiliary oil cylinder 3 and be positioned at auxiliary oil pocket 31
Oil return piston 32, auxiliary oil pocket 31 one end extends to resistance cylinders 1 one end end face and forms opening, and be provided with can be by auxiliary oil cylinder 3 one end
The return spring of closure of openings covers 33, and return spring capping 33 is provided with return spring 34, auxiliary oil pocket 31 with oil return piston 32
Connect have the interface channel 35 being radially arranged along resistance cylinders 1, resistance cylinders 1 is radially provided be connected with damping cavity 41 return
Fuel tap pin 9, wherein, built-in orifice valve group 4 here includes axially extending arranging resistance cylinders 1 outer circumferential and being positioned at piston
The all damping cavity 41 to the periphery of bar 22 axial line, damping cavity 41 one end extends to cylinder cap 11 side and by damping cavity plug 42 envelope
Stifled, it is provided with in resistance cylinders 1 outer circumferential and some extends radially through the damping slot 43 in damping cavity 41, in damping slot 43, be provided with damping
Valve module 44.
Preferably, damping slot 43 here is all in wide outside and narrow inside T-shaped, and damping slot 43 that each damping cavity 41 is connected
Quantity be two, two damping slots 43 respectively with plunger shaft 21 one_to_one corresponding and being connected.I.e. have employed built-in orifice valve
Group, it is ensured that the damage that in use orifice valve is not easily susceptible to, orifice valve is to form complete machine static state, the crucial portion of dynamic property
Part.According to computing formula of surging, wherein orifice valve bore dia, length computation are particularly critical, to this, have abandoned resistance in early days in development
The small damping principle that Buddhist nun's device generally uses, but use the T-shaped spiral damping groove with innovative significance.Both compare, the former
Being easily caused blocking because valve opening is minimum, and be difficult to processing, detection, spiral damping groove structure then have found orifice valve bore dia and length
The best joint of degree, reduces the damping hole requirement to dielectric clean degree, improves manufacturing process performance.The most built-in resistance
Buddhist nun valve group once mounting, after overall performance test passes, its damping characteristic is difficult to change, effective guarantee antivibrator reliable
Property.
Further, resistance cylinders 1 here is provided with split type key seat 5, and split away from the one end with piston rod 22
It is connected with the first oscillating bearing 52 by bearing pin 51 on formula key seat 5, and first oscillating bearing 52 one end is provided with key seat location-plate 53,
Wherein, piston rod 22 here extends to one end outside resistance cylinders 1 and connects and have second joint bearing 6, and piston rod 22 with
Being provided with stroke indicating arm 7 between resistance cylinders 1, being additionally provided with between piston rod 22 and resistance cylinders 1 can be by piston rod 22 and resistance
The stroke lock assembly 8 that Buddhist nun's cylinder body 1 axially positions, is carved with the scale at 10mm interval at resistance cylinders 1 or piston rod 22 end,
Its piston rod 22 stroke and position is confirmed when can facilitate antivibrator inservice inspection.Wherein, stroke lock assembly 8 here includes
The locking seat 81 that be connected removable with piston rod 22, is equipped with, in locking seat 81, the locking spiral shell being detachably connected with resistance cylinders 1
Bolt 82, and locking bolt 82 respectively by bolt and nut 83 with locking seat 81 be connected.
Further, the cylinder cap 11 in the present embodiment is connected with resistance cylinders 1 by hexagon socket head cap screw 111, and cylinder cap
Piston rod guide ring bolt 112 it is provided with, well-designed sealing system: in order to ensure reliable anti-leak between 11 and piston rod 22
Performance, the well-designed multi-seal system of antivibrator model machine that this project is developed, seal shape, position through special
Design optimization, key position is provided with 2～3 seal structures, between piston 2 and resistance cylinders 1, between piston rod 22 and cylinder cap 11
Movable sealing position be provided with copper sheathing guider, prevent abrasion or hydraulic performance decline that antivibrator causes by offset loading force.Exclusive returns
The holding that oil piston can produce small back pressure, beneficially dynamic property to hydraulic system is reliable with seal.Material choosing reliably
With: the exposed parts of hydraulic damper such as resistance cylinders 1, cylinder cap 11 grade all uses austenitic stainless steel material to make, and remaining is zero years old
Part such as piston rod 22, etc. use steel alloy or martensitic stain less steel to make, threaded portion plating manganese phosphate, thus strengthen the anti-of part
Corruption and anti-wear performance, and for the ease of the installation of this antivibrator, suspension ring can be set on resistance cylinders 1 and piston rod 22.
Specific embodiment described herein is only to present invention spirit explanation for example.Technology neck belonging to the present invention
Described specific embodiment can be made various amendment or supplements or use similar mode to replace by the technical staff in territory
Generation, but without departing from the spirit of the present invention or surmount scope defined in appended claims.
Although the most more employ resistance cylinders 1, cylinder cap 11, hexagon socket head cap screw 111, piston rod guide ring bolt 112,
Piston body 2, plunger shaft 21, piston rod 22, auxiliary oil cylinder 3, auxiliary oil pocket 31, oil return piston 32, return spring capping 33, return spring
34, interface channel 35, built-in orifice valve group 4, damping cavity 41, damping cavity plug 42, damping slot 43, orifice valve assembly 44, point
Body formula key seat 5, bearing pin the 51, first oscillating bearing 52, key seat location-plate 53, second joint bearing 6, stroke indicating arm 7, moving lock
Determine the terms such as device assembly 8, locking seat 81, locking bolt 82, bolt and nut 83, oil return needle 9, but be not precluded from using other art
The probability of language.Use these terms to be only used to more easily to describe and explain the essence of the present invention；It is construed as
Any additional restriction is all contrary with spirit of the present invention.
Claims (10)
1. a symmetrical expression large hydraulic antivibrator, including having the resistance cylinders (1) of inner chamber, described resistance cylinders (1)
End seal is closed, and the other end is uncovered, and being provided with on resistance cylinders (1) can be by the cylinder cap (11) of uncovered closing, described resistance cylinders (1)
Inside slide axially and be provided with the piston body (2) being positioned in inner chamber and inner chamber being separated into two independent plunger shaft (21), and institute
The piston body (2) stated connects that to be arranged in cylinder cap (11) upper and extend to the piston rod (22) outside resistance cylinders (1) one end, its
Being characterised by, cylindrically, and described piston rod (22) prolongs described resistance cylinders (1) along the axial line of resistance cylinders (1)
Stretch setting, resistance cylinders (1) be circumferentially with some have be positioned at piston rod (22) axial line week to the periphery and along damped cylinder
It is provided with oil return resetting structure in the auxiliary oil cylinder (3) of the axially extended auxiliary oil pocket of body (1) (31), and described auxiliary oil pocket (31),
Being circumferentially with of resistance cylinders (1) some is positioned at piston rod (22) axial line week built-in orifice valve group (4) to the periphery, and institute
The auxiliary oil cylinder (3) stated and built-in orifice valve group (4) are distributed ringwise and are arranged on piston rod (22) axial line week to the periphery.
Symmetrical expression large hydraulic antivibrator the most according to claim 1, it is characterised in that described auxiliary oil cylinder (3) and interior
Put formula orifice valve group (4) interlock one by one and be uniformly arranged on the axial line week of piston rod (22) to the periphery.
Symmetrical expression large hydraulic antivibrator the most according to claim 1, it is characterised in that described oil return resetting structure bag
Including in being arranged on auxiliary oil cylinder (3) and be positioned at the oil return piston (32) of auxiliary oil pocket (31), described auxiliary oil pocket (31) one end extends
Form opening to resistance cylinders (1) one end end face, and be provided with can be by the return spring of closure of openings in described auxiliary oil cylinder (3) one end
Capping (33), and described return spring covers (33) and oil return piston (32) is provided with return spring (34), described auxiliary oil pocket
(31) connection has the interface channel (35) being radially arranged along resistance cylinders (1).
4. according to the symmetrical expression large hydraulic antivibrator described in claim 1 or 2 or 3, it is characterised in that described built-in resistance
Buddhist nun's valve group (4) includes axially extending arranging resistance cylinders (1) outer circumferential and being positioned at piston rod (22) axial line week to the periphery
Damping cavity (41), described damping cavity (41) one end is extended to cylinder cap (11) side and is blocked by damping cavity plug (42),
Resistance cylinders (1) outer circumferential is provided with some damping slots (43) extended radially through in damping cavity (41), described damping slot (43)
Inside it is provided with orifice valve assembly (44).
Symmetrical expression large hydraulic antivibrator the most according to claim 4, it is characterised in that described damping slot (43) all in
Wide outside and narrow inside is T-shaped, and the quantity of damping slot (43) that each damping cavity (41) is connected is two, two damping slots (43) point
Not with plunger shaft (21) one_to_one corresponding and being connected.
Symmetrical expression large hydraulic antivibrator the most according to claim 4, it is characterised in that described resistance cylinders (1) is remote
Be provided with from the one end with piston rod (22) on split type key seat (5), and described split type key seat (5) by bearing pin (51) with
First oscillating bearing (52) is connected, and described the first oscillating bearing (52) one end is provided with key seat location-plate (53).
Symmetrical expression large hydraulic antivibrator the most according to claim 6, it is characterised in that described piston rod (22) extends
One end to resistance cylinders (1) outside connects to be had between second joint bearing (6), and piston rod (22) and resistance cylinders (1) and sets
Having stroke indicating arm (7), being additionally provided with between piston rod (22) and resistance cylinders (1) can be by piston rod (22) and resistance cylinders
(1) stroke lock assembly (8) axially positioned.
Symmetrical expression large hydraulic antivibrator the most according to claim 7, it is characterised in that described stroke lock assembly
(8) include the locking seat (81) that be connected removable with piston rod (22), be equipped with and resistance cylinders in described locking seat (81)
(1) the detachable locking bolt (82) being connected, and described locking bolt (82) is respectively by bolt and nut (83) and locking seat
(81) it is connected.
Symmetrical expression large hydraulic antivibrator the most according to claim 1, it is characterised in that described cylinder cap (11) is by interior
Hex bolts (111) is connected with resistance cylinders (1), and is provided with piston rod guiding between described cylinder cap (11) and piston rod (22)
Ring bolt (112).
Symmetrical expression large hydraulic antivibrator the most according to claim 4, it is characterised in that on described resistance cylinders (1)
It is radially provided with the oil return needle (9) being connected with damping cavity (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742803.3A CN106246790A (en) | 2016-08-26 | 2016-08-26 | Symmetrical expression large hydraulic antivibrator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742803.3A CN106246790A (en) | 2016-08-26 | 2016-08-26 | Symmetrical expression large hydraulic antivibrator |
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| Publication Number | Publication Date |
|---|---|
| CN106246790A true CN106246790A (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610742803.3A Pending CN106246790A (en) | 2016-08-26 | 2016-08-26 | Symmetrical expression large hydraulic antivibrator |
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| Country | Link |
|---|---|
| CN (1) | CN106246790A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001071197A1 (en) * | 2000-03-21 | 2001-09-27 | Hydroll Oy | A hydraulic arrangement and a damper adapted thereto |
| CN2651560Y (en) * | 2003-10-16 | 2004-10-27 | 上海理工大学附属工厂 | Hydraulic damper for nuclear power station |
| CN2651510Y (en) * | 2003-10-16 | 2004-10-27 | 上海理工大学附属工厂 | Hydraulic damper for large and medium sized apparatus in nuclear power station |
| JP2005337309A (en) * | 2004-05-25 | 2005-12-08 | Sanwa Tekki Corp | Hydraulic vibration control device |
| CN105065529A (en) * | 2015-09-01 | 2015-11-18 | 上海核工程研究设计院 | Large hydraulic damper for supporting nuclear power station main device |
| CN206092779U (en) * | 2016-08-26 | 2017-04-12 | 常州格林电力机械制造有限公司 | Large -scale hydraulic damper of symmetry formula |
-
2016
- 2016-08-26 CN CN201610742803.3A patent/CN106246790A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001071197A1 (en) * | 2000-03-21 | 2001-09-27 | Hydroll Oy | A hydraulic arrangement and a damper adapted thereto |
| CN2651560Y (en) * | 2003-10-16 | 2004-10-27 | 上海理工大学附属工厂 | Hydraulic damper for nuclear power station |
| CN2651510Y (en) * | 2003-10-16 | 2004-10-27 | 上海理工大学附属工厂 | Hydraulic damper for large and medium sized apparatus in nuclear power station |
| JP2005337309A (en) * | 2004-05-25 | 2005-12-08 | Sanwa Tekki Corp | Hydraulic vibration control device |
| CN105065529A (en) * | 2015-09-01 | 2015-11-18 | 上海核工程研究设计院 | Large hydraulic damper for supporting nuclear power station main device |
| CN206092779U (en) * | 2016-08-26 | 2017-04-12 | 常州格林电力机械制造有限公司 | Large -scale hydraulic damper of symmetry formula |
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Application publication date: 20161221 |