CN108506403A - A kind of large hydraulic damper - Google Patents
A kind of large hydraulic damper Download PDFInfo
- Publication number
- CN108506403A CN108506403A CN201810347153.1A CN201810347153A CN108506403A CN 108506403 A CN108506403 A CN 108506403A CN 201810347153 A CN201810347153 A CN 201810347153A CN 108506403 A CN108506403 A CN 108506403A
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- China
- Prior art keywords
- piston rod
- temperature
- damper
- compensating
- end cap
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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
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/061—Mono-tubular units
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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
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/066—Units characterised by the partition, baffle or like element
- F16F9/067—Partitions of the piston type, e.g. sliding pistons
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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
- F16F9/3214—Constructional features of pistons
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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
- F16F9/3221—Constructional features of piston rods
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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
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
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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
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
- F16F9/437—Drainage arrangements
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention provides a kind of large hydraulic dampers,Including right plunger,Right end cap,Cylinder body,Piston component,Piston rod,Left end cap,Left plunger,Plug,Tank filler sleeve,Auxiliary piston rod and temperature compensation means,The present apparatus is by the way of damping flow channel and first flow cooperation,Realize damper low speed friction resistance and quick lock performance,Auxiliary piston rod is identical with the outer diameter of piston rod simultaneously,Keep the volume that damper the right and left fluid changes identical,Reduce the setting of damper service tank,Reduce damper appearance and size,And the variation of fluid volume when temperature-compensating chamber is used to accommodating and supplementing temperature change is formed using temperature compensation means,Temperature change is avoided to influence the working performance of damper,Temperature compensation means is located inside auxiliary piston rod endoporus,Reduce damper appearance and size,It is simple in structure,Process industrial art performance is good,Product quality is ensured,Improve the reliability of product.
Description
Technical field
The present invention relates to damper technique field more particularly to a kind of large hydraulic dampers.
Background technology
Currently, hydraulic damper is widely used in antivibration field of shock absorption, and for common hydraulic damper, structure
Size is relatively small or installation space is not limited.And in certain some special occasions, such as the large-scale liquid of nuclear power main equipment
Damper is pressed, is mounted on inside nuclear island, installation space is smaller, so just having very strict want to the structure size of damper
Ask, such as patent " CN2651560 " discloses a kind of hydraulic damper for nuclear power station, it mainly include Oil preserving piston, master cylinder,
Piston rod, carrying coupling head, preceding flap, rear flap, oil drum are placed in the outer layer of damping master cylinder, and main oil cylinder piston both sides are constituted
Two working chambers are equipped with the main control valve of the communication and locking for controlling piston both sides oil, in oil drum among piston rod
The aux. control valve linked up between master cylinder and oil storage cylinder is equipped between master cylinder；Pass through pipeline and auxiliary in front of Oil preserving piston
Control valve connects, and rear is equipped with compression spring, and the main and auxiliary control valve of elastic oil-bearing structure and cone valve structure can be made up automatically due to resistance
The volume asymmetric damping device inner fluid volume change of piston both sides oil pocket in Buddhist nun's oil cylinder is subjected to pipe-line system and meets with earthquake and core
Antivibration when the main building loss of-coolant accident (LOCA) impact of power station；But existing damper is needed since the volume of piston both sides oil pocket is asymmetric
It configures auxiliary oil-bearing structure and is used to accommodate the extra fluid generated when damper work, so as to cause the appearance and size of damper
It is bigger, there is more special requirement to damper installation space, and cause to hinder by the volume of piston both sides oil pocket is inconsistent
The performance that Buddhist nun's device bears tension and compression both direction is inconsistent, seriously affects the safety in the service life and nuclear power main equipment of large-scale damper.
Invention content
To overcome problems with existing in the prior art：Existing damper is not right due to the volume of piston both sides oil pocket
Claim, needs to configure damper auxiliary oil-bearing structure and be used to accommodate the extra fluid generated when damper work, so as to cause damping
The appearance and size of device is bigger, has more special requirement to damper installation space, and by the volume of piston both sides oil pocket
The inconsistent performance for causing damper to bear tension and compression both direction is inconsistent, seriously affects service life and the nuclear power master of large-scale damper
The safety of equipment；The present invention provides a kind of large hydraulic dampers, it is characterised in that:Including right plunger, right end cap, cylinder body,
Piston component, piston rod, left end cap, left plunger, auxiliary piston rod and temperature compensation means, the right plunger are located at right end cap
The right, the left plunger are located at the left side of piston rod, are formed in cylindrical cylinder barrel inside the right end cap, cylinder body and left end cap
Hole, the piston component are located inside inner hole of cylinder, the piston component inner hole of cylinder be divided into the left working chamber of damper and
Damper right working chamber is provided with damping flow channel (4-4) and between the left working chamber of the damper and the right working chamber of damper
The left end of one runner, the damping flow channel and first flow is connected with the left working chamber of damper, the damping flow channel and first
The right end of runner is connected with the right working chamber of damper, and the first flow includes the first check valve and the second check valve；It is described
Piston rod is connect with piston component, and the left end of piston rod passes through left end cap, driving piston component to be moved forward and backward；The piston component
Right side central be machined with cylindrical piston inner hole, the auxiliary piston rod is located in piston inner hole, the auxiliary piston rod
Outer diameter it is identical with the outer diameter of piston rod；It is machined with inside the left side of the auxiliary piston rod in cylindrical auxiliary piston rod
Hole, the temperature compensation means are located inside auxiliary piston rod endoporus, and the temperature compensation means includes spring, end and temperature
Compensating piston, the temperature compensation pistons are located inside auxiliary piston rod endoporus, and auxiliary piston rod endoporus is divided into left and right two
A chamber, right chamber are temperature-compensating chamber, and left chamber is installation cavity；The end is fixedly mounted on a left side for auxiliary piston rod endoporus
End, for the spring between end and temperature compensation pistons, the movement of driving temperature compensating piston changes temperature-compensating chamber
Volume；The auxiliary piston rod endoporus bottom right side offers temperature-compensating damping micropore, and the temperature-compensating damps micropore one
End be connected with temperature-compensating chamber, the other end is connected with the right working chamber of damper, fluid by temperature-compensating damping micropore into
Enter temperature-compensating chamber；The auxiliary piston rod endoporus bottom right side is equipped with temperature-compensating check valve, and the temperature-compensating is unidirectional
The import of valve is connected with temperature-compensating chamber, and the outlet of the temperature-compensating check valve is connected with the right working chamber of damper, oil
Liquid enters the right working chamber of damper by temperature-compensating check valve.
On this basis, be equipped between the outer wall of the temperature compensation pistons and auxiliary piston rod endoporus guider and
Sealing device is formed between the outer wall and auxiliary piston rod endoporus of the temperature compensation pistons and is slidably matched.
On this basis, the right side central of the temperature compensation pistons offers compensating piston cylindrical hole, and the compensation is lived
Plug cylindrical hole damps micropore with temperature-compensating and temperature-compensating check valve is connected to.
On this basis, the left side central portion of the temperature compensation pistons offers spring base hole, and the right side of the end adds
Work has spring installation base, the left part of the spring to be sleeved on spring installation base, and the right part of the spring is located at spring base
In hole, and push against spring base hole.
On this basis, the end includes venthole, and the venthole is axial arranged along end, the end of perforation two
End face, described venthole one end connect installation cavity, and the other end connects piston inner hole.
On this basis, the damping flow channel and first flow are located on piston component, along the axial arranged of piston component；
The damping flow channel is that either damping flow channel is that the runner of axial screw perforation or damping are flowed to the axial runner directly penetrated through
Road is that axial directly perforation and axial screw penetrate through the runner being combined.
On this basis, further include channel, shown channel is located at the outside of cylinder body, the damping flow channel and first flow position
In on channel, the both ends of the cylinder body have been disposed radially first passage and second channel, and first passage and second channel run through
Cylinder body cylinder body it is inside and outside, the first passage is connected with the left end of damping flow channel, first flow, the second channel with damping
Runner, first flow right end be connected；The damping flow channel is the axial runner directly penetrated through or damping flow channel is axial
The runner or damping flow channel of spiral perforation are that axial directly perforation and axial screw penetrate through the runner being combined.
On this basis, the auxiliary piston rod be securedly mounted on right end cap by screw or auxiliary piston rod with
Right plunger, right end cap are integrally formed.
On this basis, the left end cap and cylinder body are securedly mounted to together or left end cap and cylinder body are integrally formed.
On this basis, the right plunger, right end cap and cylinder body are integrally formed or right plunger, right end cap and cylinder body are tight
Guan County is fitted together.
Compared with prior art, the beneficial effects of the invention are as follows：
1, the present apparatus is by the way of damping flow channel and first flow cooperation, realizes damper low speed friction resistance and fast
Fast latch performance；Coordinate auxiliary piston rod and piston rod simultaneously, auxiliary piston rod is identical with the outer diameter of piston rod, keeps damper left
The volume of right both sides fluid variation is identical, reduces the setting of damper service tank, reduces damper appearance and size, simultaneously
The symmetrical structure at both ends is arranged, and keeps the performance that damper bears tension and compression both direction identical, improves the working performance of damper,
The service life for extending damper improves the safety of nuclear power main equipment.
2, the present apparatus forms temperature-compensating chamber for fluid body when accommodating and supplement temperature change using temperature compensation means
Long-pending variation avoids temperature change from influencing the working performance of damper, and temperature compensation means is located in auxiliary piston rod
Inside hole, damper appearance and size is reduced, simple in structure, process industrial art performance is good, has ensured product quality, improves product
Reliability.
3, the present apparatus is exhausted piston inner hole by the second venthole and the first venthole, coordinates the ventilation of end
Hole ensure that the gas compartment formed when cooperation between auxiliary piston rod, piston rod and end does not influence the damping work of damper
With improving the response speed of damper, ensure that the smooth realization of damper damping.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram of the embodiment of the present invention 2；
Fig. 3 is the structural schematic diagram of the embodiment of the present invention 3；
In figure：1, right plunger, 2, right end cap, 2-1, auxiliary piston rod mounting hole, 3, cylinder body, 3-1, inner hole of cylinder, 3-4,
First passage, 3-5, second channel, 4, piston component one, 4-1, piston inner hole, 4-2, the first check valve are 4-3, second unidirectional
Valve, 4-4, damping flow channel, 5, piston rod, 5-1, the first venthole, 5-2, the second venthole, 6, left end cap, 7, left plunger, 8, stifled
Head, 9, tank filler sleeve, 10, auxiliary piston rod, 10-1, auxiliary piston rod endoporus, 10-3, temperature-compensating damp micropore, 10-4, temperature
Compensate check valve, 10-5, temperature-compensating chamber, 10-6, installation cavity, 11, screw, 12, spring, 13, end, 13-1, venthole,
13-2, boss, 14, temperature compensation pistons, 14-1, spring base hole, 14-2, compensating piston cylindrical hole, 15, piston component two, 20,
Channel, the left mounting hole of A, damper, the right mounting hole of B, damper, the left working chamber of C, damper, the right working chamber of D, damper,
Specific implementation mode
Below in conjunction with drawings and examples, the present invention will be described in further detail.It should be appreciated that described herein
Specific examples are only used to explain the present invention, is not intended to limit the present invention.
Implementation column 1：
As shown in Figure 1, the present invention schematically illustrates a kind of large hydraulic damper.
A kind of large hydraulic damper of present disclosure, as shown in Figure 1, including right plunger 1, right end cap 2, cylinder body 3, piston
Component 1, piston rod 5, left end cap 6, left plunger 7, plug 8, tank filler sleeve 9, auxiliary piston rod 10, screw 11 and temperature-compensating dress
It sets, right plunger 1 is located at the right of right end cap 2, and the right mounting hole B of damper is offered in right plunger 1, and left plunger 7 is located at piston rod 5
The left side, left plunger 7 and the formation of piston rod 5 is fastenedly connected, and offers the left mounting hole A of damper in left plunger 7, right plunger 1, right
End cap 2 and cylinder body 3 are integrally formed, and left end cap 6 and cylinder body 3 are securedly mounted to together, are installed between 3 inner wall of left end cap 6 and cylinder body
There is sealing device, processes cylindrical inner hole of cylinder 3-1 in cylinder body 3, right end cap 2, cylinder body 3 and left end cap 6 cooperatively form closing
Endoporus, piston component 1 is located inside inner hole of cylinder 3-1, and guiding is equipped between piston component 1 and inner hole of cylinder 3-1
Device and sealing device are formed between piston component 1 and inner hole of cylinder 3-1 and are slidably matched, and piston component 1 is inner hole of cylinder
3-1 is divided into the left working chamber C of damper and the right working chamber D of damper；The axially inside perforation of piston component 1 is equipped with damping
Runner 4-4 and first flow, damping flow channel 4-4 and first flow left end are connected with the left working chamber C of damper, damping flow channel 4-
4 and the right end of first flow be connected with the right working chamber D of damper, damping flow channel 4-4 is the axial runner directly penetrated through, as
The other embodiment of the present embodiment：Damping flow channel 4-4 is the runner of axial screw perforation, or is axial directly perforation and axis
The runner being combined is penetrated through to spiral；First flow includes the first check valve 4-2 and the second check valve 4-3, the first check valve 4-2
It is with certain reversed check valve open in usual for closing pressure, the first check valve 4-2 and the second check valve with the second check valve 4-3
4-3 is positioned opposite, and the outlet of the first check valve 4-2 is connected with the left working chamber C of damper, the outlet of the second check valve 4-3 and
The right working chamber D of damper is connected, and the import of the oil inlet of the first check valve 4-2 and the second check valve 4-3 is connected, and works as damping
When device tick-over, the first check valve 4-2 and the second check valve 4-3 are opened, and damping flow channel 4-4 and first flow simultaneously turn on,
Fluid is flowed by damping flow channel 4-4 and first flow between the left working chamber C of damper and the right working chamber D of damper, is realized
The performance of damper low speed friction resistance；When damper quickly moves, the first check valve 4-2 or the second check valve 4-3 are closed
First flow is caused to be closed, fluid is flowed by damping flow channel 4-4 between the left working chamber C of damper and the right working chamber D of damper,
Realize damper quick lock performance；The right side central of piston component 1 is machined with cylindrical piston inner hole 4-1, auxiliary
The left end of piston rod 10 is located in piston inner hole 4-1, be equipped between auxiliary piston rod 10 and piston inner hole 4-1 guider and
It is slidably matched between the left end outer wall of sealing device, piston inner hole 4-1 and auxiliary piston rod 10, to form a seal chamber
Body；The right end of auxiliary piston rod 10 is connect with right end cap 2, and the Left-side center of right end cap 2 is machined with auxiliary piston rod mounting hole 2-
1, sealing element, a left side for auxiliary piston rod 10 are installed between 10 right end outer wall of auxiliary piston rod and auxiliary piston rod mounting hole 2-1
Be machined with cylindrical auxiliary piston rod endoporus 10-1 inside side, the right side of auxiliary piston rod 10 be machined with it is several axially through
Screw mounting hole, screw 11 pass through auxiliary piston rod endoporus 10-1, fasten auxiliary piston rod 10 by screw mounting hole and install
On right end cap 2；The outer diameter of auxiliary piston rod 10 is identical as the outer diameter of piston rod 5, to ensure the left working chamber C of damper and resistance
The volume of the both sides Buddhist nun's device right working chamber D fluid variation is identical, reduces the setting of damper service tank, reduces outside damper
Shape size, while the symmetrical structure setting at both ends, keep the performance that damper bears tension and compression both direction identical, improve damper
Working performance, extend the service life of damper；Temperature compensation means is located inside auxiliary piston rod endoporus 10-1, temperature
Compensation device includes spring 12, end 13 and temperature compensation pistons 14, spring 12 be located at end 13 and temperature compensation pistons 14 it
Between, and it is in compressive state, temperature compensation pistons 14 are located inside auxiliary piston rod endoporus 10-1, outside temperature compensation pistons 14
Guider and sealing device, the outer wall and auxiliary of temperature compensation pistons 14 are installed between wall and auxiliary piston rod endoporus 10-1
It is formed and is slidably matched between piston rod endoporus 10-1, auxiliary piston rod endoporus 10-1 is divided into left and right two chambers, right chamber
For temperature-compensating chamber 10-5, left chamber is installation cavity 10-6, and the left side left side central portion of temperature compensation pistons 14 offers spring
Bore 14-1, for installing spring 12, the right side central of temperature compensation pistons 14 offers compensating piston cylindrical hole 14-2；End
13 are threadably secured mounted on the left part of auxiliary piston rod endoporus 10-1, and 13 middle part of end is axially disposed to run through front-back
Venthole 13-1, the one end venthole 13-1 connect installation cavity 10-6, the other end connect piston inner hole 4-1, avoid installation cavity 10-
Gas in 6 has an impact the movement of temperature compensation pistons 14, and the right side of end 13 is machined with spring installation base 13-2, spring
12 left part is sleeved on spring installation base 13-2, and for being positioned to spring 12, spring 12 is located at end 13 and temperature
Between compensating piston 14, it is in compressive state, driving temperature compensating piston 14 moves left and right, for adjusting temperature-compensating chamber 10-5
Volume；Auxiliary piston rod endoporus 10-1 bottom right sides offer temperature-compensating damping micropore 10-3, and temperature-compensating damps micropore
The one end 10-3 is connected with temperature-compensating chamber 10-5, and the other end is connected with the right working chamber D of damper, when the temperature liter of damper
Gao Shi, the left working chamber C of damper and the right working chamber D inner fluid volumes of damper increase, and fluid damps micropore by temperature-compensating
10-3 enters in temperature-compensating chamber 10-5；Auxiliary piston rod endoporus 10-1 bottom right sides are equipped with temperature-compensating check valve 10-4,
The import of temperature-compensating check valve 10-4 is connected with temperature-compensating chamber 10-5, the outlet and damping of temperature-compensating check valve 10-4
The right working chamber D of device is connected, and when the temperature of damper reduces, fluid is rapidly introduced into resistance by temperature-compensating check valve 10-4
The right working chamber D of Buddhist nun's device, compensates the reduction of the right working chamber D inner fluids of damper, and temperature-compensating damps micropore 10-3 and temperature-compensating
Check valve 10-4 is connected with compensating piston cylindrical hole 14-2, hinders temperature-compensating when temperature compensation pistons 14 being avoided to be located at right end
Buddhist nun's micropore 10-3 and the 10-4 partitions of temperature-compensating check valve, increase the area of 14 right end fluid of temperature compensation pistons, reduce temperature
The pressure of system when compensation, ensures the realization of temperature compensation function；Piston rod 5 is connect across left end cap 6 with piston component 1,
Piston component 1 is driven to be moved forward and backward, piston component 1 and piston rod 5 are integrally formed, and the left end of piston rod 5 is machined with radial direction
First venthole 5-1 of perforation, the bosom of piston rod 5 are axially machined with the second venthole 5-2, the second venthole 5-2's
Left end is connected with the first venthole 5-1, and the right end of the second venthole 5-2 is connected with piston inner hole 4-1, piston inner hole 4-1
By the second venthole 5-2, the first venthole 5-1 and atmosphere, to make auxiliary piston rod 10, piston rod 5 and temperature mend
Repaying the gas compartment formed when cooperation between piston 14 does not influence the damping action of damper, improves the response speed of damper
Degree, ensure that the smooth realization of damper damping；Guider, close is installed between left end cap 6 and the outer wall of piston rod 5
Seal apparatus and dust guard are formed between left end cap 6 and the outer wall of piston rod 5 and are slidably matched, to ensure that the left work of damper
Make the leakproofness of chamber C；Axially through tank filler sleeve 9 is offered on left end cap 6, after damper completes oiling, plug 8 and correlation are close
Sealing is mounted in tank filler sleeve 9, blocks tank filler sleeve 9, the left working chamber C of damper, the right working chamber D of damper, temperature-compensating chamber 10-
5 and the correlation space communicated therewith and channel be each filled with work fluid.
Operation principle：
When left plunger 7 is moved relative to right plunger 1, right plunger 1 drives piston rod 5 and piston component 1 to move.In liquid
Damper low-speed motion state is pressed, is remained between the first check valve 4-2 and the spool and valve seat of the second check valve 4-3 between circulation
Gap.At this point, on the one hand the work fluid in hydraulic damper is flowed into resistance by the second check valve 4-3 and the first check valve 4-2
Another working chamber of Buddhist nun's device；On the other hand, it is flowed into damper another working chamber also by damping flow channel 4-4, due to work
The flow channel of fluid is larger, and work fluid is formed very small from during flowing between hydraulic damper working chamber
The pressure loss, damper form very small drag to external equipment, meet the performance requirement of damper low speed friction resistance；
The quick motion state of hydraulic damper, the first check valve 4-2 or the second check valve 4-3 generate locking, at this point, hydraulic damper work
The work fluid for making intracavitary is merely capable of being flowed into another damper working chamber by damping flow channel 4-4, when work fluid is logical
When overdamp runner 4-4, the larger pressure loss is formed, generates damping action, large hydraulic damper provides external equipment
Larger drag meets the requirement of damper latch performance, the safety of effective protection external equipment.Meanwhile one 4 He of piston component
Also relative motion is generated between auxiliary piston rod 10, passes through the second ventilation in piston inner hole 4-1 and auxiliary piston rod endoporus 10-1
Hole 5-2, the first venthole 5-1 be discharged into or suck air, the effective guarantee correlated performance of large hydraulic damper.
Since the outer diameter of auxiliary piston rod 10 is identical with the outer diameter of piston rod 5, damper during the work time, right working chamber
The volume variable quantity of the left working chamber C of the volume variable quantity of D and hydraulic damper is identical, avoids the volume of single-piston rod damper
Variation issue reduces the setting of damper service tank, meanwhile, the one of the tension and compression both direction performance of large hydraulic damper
Cause property is also more preferable.
When environment temperature changes, if environment temperature increases, in two working chambers of large hydraulic damper or so
Work oil liquid temperature increase, pressure rises, and the work fluid in right working chamber D can pass through temperature-compensating and damp micropore 10-3
It slowly enters in temperature-compensating chamber 10-5, pushes temperature compensation pistons 14 to overcome the precompression of spring 12, be moved to the left, temperature is mended
The volume for repaying chamber 10-5 increases, and avoids working chamber because damper internal pressure caused by environment temperature increases increases；If ring
Border temperature reduces, and is dropped at a temperature of the work fluid in two working chambers of large hydraulic damper or so, occurs in working chamber certain
Vacuum, spring 12 push temperature compensation pistons 14 move right, the fluid in temperature-compensating chamber 10-5 passes through temperature-compensating list
Right working chamber D is rapidly entered to valve 10-4, improves working chamber because what is occurred inside damper caused by environment temperature reduces is true
It is empty；When large hydraulic damper works normally, if right working chamber D is in high pressure conditions, the sub-fraction work of right working chamber D
Making fluid can be slowly entered by temperature-compensating damping micropore 10-3 in temperature-compensating chamber 10-5, but since temperature-compensating damping is micro-
The oil filling capacity of hole 10-3 is extremely low, and the amount pole that micropore 10-3 enters the fluid in temperature-compensating chamber 10-5 is damped by temperature-compensating
Few, when right working chamber D is in negative pressure state, the fluid in temperature-compensating chamber 10-5 can pass through temperature-compensating check valve 10-4 again
Right working chamber D is rapidly entered, the overall balance of work fluid in damper or so working chamber is kept, avoids influencing large hydraulic resistance
The working performance of Buddhist nun's device.Installation cavity 10-6 is connected to piston inner hole 4-1 by venthole 13-1 and is discharged into or sucks air simultaneously, effectively
The compensation performance of temperature-compensating chamber 10-5 is ensured.
Implementation column 2：
As different from Example 1, a kind of large hydraulic damper of present embodiment, as shown in Fig. 2, including right plunger
1, right end cap 2, cylinder body 3, piston component 1, piston rod 5, left end cap 6, left plunger 7, plug 8, tank filler sleeve 9, auxiliary piston rod
10 and temperature compensation means, right plunger 1, right end cap 2 and auxiliary piston rod 10 are integrally formed, cylinder body 3 and 6 one of left end cap at
Type is equipped with sealing device between cylinder body 3 and right end cap 2；Auxiliary piston rod 10 is integrally formed with right end cap 2, improves piston
Concentricity between bar 5 and cylinder body 3 ensure that the installation quality of damper, improve the installation effectiveness of damper, extend resistance
The service life of Buddhist nun's device.
Implementation column 3：
As different from Example 1, a kind of large hydraulic damper of present embodiment, as shown in figure 3, including right plunger
1, right end cap 2, cylinder body 3, piston component 2 15, piston rod 5, left end cap 6, left plunger 7, plug 8, tank filler sleeve 9, auxiliary piston rod
10, screw 11, temperature compensation means and channel 20, piston component 2 15 are integrally formed with piston rod 5, and piston component 2 15 is located at
Inside inner hole of cylinder 3-1, guider and sealing device, piston group are installed between piston component 2 15 and inner hole of cylinder 3-1
It is formed and is slidably matched between part 2 15 and inner hole of cylinder 3-1, inner hole of cylinder 3-1 is divided into the left work of damper by piston component 2 15
Make chamber C and the right working chamber D of damper, channel 20 is located at the outside of cylinder body 3, including damping flow channel 4-4 and first flow, damping stream
The both ends of road 4-4 and first flow are combined into one, and 3 both ends of cylinder body have been disposed radially first passage 3-4 and second channel 3-
5, first passage 3-4 and second channel 3-5 are inside and outside through cylinder body, first passage 3-4 and damping flow channel 4-4, first flow
Left end is connected, and second channel 3-5 is connected with the right end of damping flow channel 4-4, first flow；Channel 20 is by damping flow channel 4-4
It is external with first flow, convenient for being overhauled and being safeguarded to damper, the labor intensity of maintenance is reduced, improves work effect
Rate.
The preferred embodiment of the present invention has shown and described in above description, as previously described, it should be understood that the present invention is not office
Be limited to form disclosed herein, be not to be taken as excluding other embodiments, and can be used for various other combinations, modification and
Environment, and can be changed by the above teachings or related fields of technology or knowledge in the scope of the invention is set forth herein
It is dynamic.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, then it all should be appended by the present invention
In scope of the claims.
Claims (10)
1. a kind of large hydraulic damper, it is characterised in that:Including right plunger (1), right end cap (2), cylinder body (3), piston component,
Piston rod (5), left end cap (6), left plunger (7), auxiliary piston rod (10) and temperature compensation means, the right plunger (1) are located at
The right of right end cap (2), the left plunger (7) are located at the left side of piston rod (5), the right end cap (2), cylinder body (3) and left end
It covers and forms cylindrical inner hole of cylinder (3-1) inside (6), the piston component is located at inner hole of cylinder (3-1) inside, the piston
Inner hole of cylinder (3-1) is divided into the left working chamber of damper (C) and the right working chamber of damper (D), the left work of damper by component
Make to be provided with damping flow channel (4-4) and first flow between chamber (C) and the right working chamber of damper (D), the damping flow channel (4-4)
Be connected with the left end of first flow with the left working chamber of damper (C), the right end of the damping flow channel (4-4) and first flow with
The right working chamber of damper (D) is connected, and the first flow includes the first check valve (4-2) and the second check valve (4-3)；It is described
Piston rod (5) is connect with piston component, and the left end of piston rod (5) passes through left end cap (6), driving piston component to be moved forward and backward；Institute
The right side central for stating piston component is machined with cylindrical piston inner hole (4-1), and the auxiliary piston rod (10) is located in piston
In hole (4-1), the outer diameter of the auxiliary piston rod (10) is identical with the outer diameter of piston rod (5)；The auxiliary piston rod (10)
Cylindrical auxiliary piston rod endoporus (10-1) is machined with inside left side, the temperature compensation means is located at auxiliary piston rod endoporus
(10-1) is internal, and the temperature compensation means includes spring (12), end (13) and temperature compensation pistons (14), and the temperature is mended
It repays piston (14) and is located at auxiliary piston rod endoporus (10-1) inside, auxiliary piston rod endoporus (10-1) is divided into two chambers in left and right
Room, right chamber are temperature-compensating chamber (10-5), and left chamber is installation cavity (10-6)；The end (13) is fixedly mounted on auxiliary and lives
The left part of stopper rod endoporus (10-1), the spring (12) are located between end (13) and temperature compensation pistons (14), driving temperature
Compensating piston (14) movement is spent, the volume of temperature-compensating chamber (10-5) is changed；Bottom on the right side of the auxiliary piston rod endoporus (10-1)
Portion offers temperature-compensating damping micropore (10-3), described temperature-compensating damping micropore one end (10-3) and temperature-compensating chamber (10-
5) it is connected, the other end is connected with the right working chamber of damper (D), and fluid damps micropore (10-3) by temperature-compensating and enters temperature
Spend compensated cavity (10-5)；Auxiliary piston rod endoporus (10-1) bottom right side is equipped with temperature-compensating check valve (10-4), institute
The import for stating temperature-compensating check valve (10-4) is connected with temperature-compensating chamber (10-5), the temperature-compensating check valve (10-4)
Outlet be connected with the right working chamber of damper (D), fluid enters the right work of damper by temperature-compensating check valve (10-4)
Make chamber (D).
2. a kind of large hydraulic damper according to claim 1, it is characterised in that：The temperature compensation pistons (14)
Guider and sealing device are installed between outer wall and auxiliary piston rod endoporus (10-1), the temperature compensation pistons (14)
It is formed and is slidably matched between outer wall and auxiliary piston rod endoporus (10-1).
3. a kind of large hydraulic damper according to claim 1, it is characterised in that：The temperature compensation pistons (14)
Right side central offers compensating piston cylindrical hole (14-2), and the compensating piston cylindrical hole (14-2) damps micropore with temperature-compensating
(10-3) is connected to temperature-compensating check valve (10-4).
4. a kind of large hydraulic damper according to claim 1, it is characterised in that：The temperature compensation pistons (14)
Left side central portion offers spring base hole (14-1), and spring installation base (13-2) is machined on the right side of the end (13), described
The left part of spring (12) is sleeved on spring installation base (13-2), and the right part of the spring (12) is located at spring base hole (14-1)
It is interior, and push against spring base hole (14-1).
5. a kind of large hydraulic damper according to claim 1, it is characterised in that：The end (13) includes venthole
(13-1), the venthole (13-1) is axial arranged along end (13), the end face of end (13) two of perforation, the venthole
The one end (13-1) connects installation cavity (10-6), and the other end connects piston inner hole (4-1).
6. a kind of large hydraulic damper according to claim 1, it is characterised in that：The damping flow channel (4-4) and
One runner is located on piston component, along the axial arranged of piston component；The damping flow channel (4-4) is the axial stream directly penetrated through
Either damping flow channel (4-4) is the runner of axial screw perforation or damping flow channel (4-4) is axial directly perforation and axis in road
The runner being combined is penetrated through to spiral.
7. a kind of large hydraulic damper according to claim 1, it is characterised in that：Further include channel (20), it is shown logical
Road (20) is located at the outside of cylinder body (3), and the damping flow channel (4-4) and first flow are located on channel (20), the cylinder body (3)
Both ends be disposed radially first passage (3-4) and second channel (3-5), first passage (3-4) and second channel (3-5) pass through
The inside and outside of cylinder body cylinder body (3) is worn, the first passage (3-4) is connected with the left end of damping flow channel (4-4), first flow, institute
Second channel (3-5) is stated with the right end of damping flow channel (4-4), first flow to be connected；The damping flow channel (4-4) is axial straight
Connect the runner of perforation either damping flow channel (4-4) be the runner of axial screw perforation or damping flow channel (4-4) be it is axial directly
It connects perforation and axial screw penetrates through the runner being combined.
8. a kind of large hydraulic damper according to claim 1, it is characterised in that：The auxiliary piston rod (10) passes through
Screw (11) is securedly mounted on right end cap (2) or auxiliary piston rod (10) and right plunger (1), right end cap (2) one at
Type.
9. a kind of large hydraulic damper according to claim 1, it is characterised in that：The left end cap (6) and cylinder body (3)
It is securedly mounted to together or left end cap (6) and cylinder body (3) is integrally formed.
10. a kind of large hydraulic damper according to claim 1, it is characterised in that：The right plunger (1), right end cap
(2) and cylinder body (3) is integrally formed or right plunger (1), right end cap (2) and cylinder body (3) are securedly mounted to together.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347153.1A CN108506403B (en) | 2018-04-18 | 2018-04-18 | Large-scale hydraulic damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347153.1A CN108506403B (en) | 2018-04-18 | 2018-04-18 | Large-scale hydraulic damper |
Publications (2)
| Publication Number | Publication Date |
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| CN108506403A true CN108506403A (en) | 2018-09-07 |
| CN108506403B CN108506403B (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810347153.1A Active CN108506403B (en) | 2018-04-18 | 2018-04-18 | Large-scale hydraulic damper |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645606A (en) * | 2018-05-11 | 2018-10-12 | 常州格林电力机械制造有限公司 | A kind of test method and equipment of large hydraulic damper |
| CN111945919A (en) * | 2020-08-13 | 2020-11-17 | 钱子凡 | Curved surface runner viscous damper |
| CN112555325A (en) * | 2020-10-28 | 2021-03-26 | 中国船舶重工集团公司第七0九研究所 | Multidirectional damping controllable magneto-rheological shock absorber |
| CN113389829A (en) * | 2021-06-10 | 2021-09-14 | 徐州徐工矿业机械有限公司 | Mining dump truck and brake automatic compensator, brake and braking method thereof |
| CN113714733A (en) * | 2021-05-28 | 2021-11-30 | 中铁七局集团电务工程有限公司 | Production process of high-sealing pneumatic tension compensation device |
| CN116379098A (en) * | 2023-06-05 | 2023-07-04 | 江苏伊思灵双第弹簧有限公司 | Wave spring for preventing lateral movement and overload |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2182904Y (en) * | 1994-01-17 | 1994-11-16 | 颜家生 | Gas-liquid type shock-absorber |
| CN2651560Y (en) * | 2003-10-16 | 2004-10-27 | 上海理工大学附属工厂 | Hydraulic damper for nuclear power station |
| CN101408235A (en) * | 2007-10-08 | 2009-04-15 | 贺勍 | Novel adjustable vibration damper and follow-up damp-regulating volume control method |
| CN101818781A (en) * | 2009-12-29 | 2010-09-01 | 重庆仪表材料研究所 | Built-in bar-type magneto-rheological damper |
| CN202790294U (en) * | 2012-08-20 | 2013-03-13 | 成都市翻鑫家科技有限公司 | Piston-rod guided automobile shock absorber |
| CN204004139U (en) * | 2014-06-06 | 2014-12-10 | 李冠良 | The vibration damper with double-piston |
| CN206072202U (en) * | 2016-08-31 | 2017-04-05 | 江苏朗域电力科技有限公司 | Hydraulic damper |
| CN206092787U (en) * | 2016-08-26 | 2017-04-12 | 常州格林电力机械制造有限公司 | Marine automatic re -setting hydraulic damper |
| CN106678245A (en) * | 2017-02-06 | 2017-05-17 | 常州格林电力机械制造有限公司 | Hydraulic damper with rigidity adjusting function |
| CN206290637U (en) * | 2016-11-30 | 2017-06-30 | 江西洪都航空工业集团有限责任公司 | A kind of two-stage vent plug formula buffer |
| CN107074056A (en) * | 2014-11-05 | 2017-08-18 | 蒂森克虏伯比尔斯坦有限公司 | It is fastened with the damper of latch plate and the method for latch plate to be fastened to damper |
| WO2018047647A1 (en) * | 2016-09-09 | 2018-03-15 | Ｋｙｂ株式会社 | Damping valve and cylinder device |
-
2018
- 2018-04-18 CN CN201810347153.1A patent/CN108506403B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2182904Y (en) * | 1994-01-17 | 1994-11-16 | 颜家生 | Gas-liquid type shock-absorber |
| CN2651560Y (en) * | 2003-10-16 | 2004-10-27 | 上海理工大学附属工厂 | Hydraulic damper for nuclear power station |
| CN101408235A (en) * | 2007-10-08 | 2009-04-15 | 贺勍 | Novel adjustable vibration damper and follow-up damp-regulating volume control method |
| CN101818781A (en) * | 2009-12-29 | 2010-09-01 | 重庆仪表材料研究所 | Built-in bar-type magneto-rheological damper |
| CN202790294U (en) * | 2012-08-20 | 2013-03-13 | 成都市翻鑫家科技有限公司 | Piston-rod guided automobile shock absorber |
| CN204004139U (en) * | 2014-06-06 | 2014-12-10 | 李冠良 | The vibration damper with double-piston |
| CN107074056A (en) * | 2014-11-05 | 2017-08-18 | 蒂森克虏伯比尔斯坦有限公司 | It is fastened with the damper of latch plate and the method for latch plate to be fastened to damper |
| CN206092787U (en) * | 2016-08-26 | 2017-04-12 | 常州格林电力机械制造有限公司 | Marine automatic re -setting hydraulic damper |
| CN206072202U (en) * | 2016-08-31 | 2017-04-05 | 江苏朗域电力科技有限公司 | Hydraulic damper |
| WO2018047647A1 (en) * | 2016-09-09 | 2018-03-15 | Ｋｙｂ株式会社 | Damping valve and cylinder device |
| CN206290637U (en) * | 2016-11-30 | 2017-06-30 | 江西洪都航空工业集团有限责任公司 | A kind of two-stage vent plug formula buffer |
| CN106678245A (en) * | 2017-02-06 | 2017-05-17 | 常州格林电力机械制造有限公司 | Hydraulic damper with rigidity adjusting function |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645606A (en) * | 2018-05-11 | 2018-10-12 | 常州格林电力机械制造有限公司 | A kind of test method and equipment of large hydraulic damper |
| CN111945919A (en) * | 2020-08-13 | 2020-11-17 | 钱子凡 | Curved surface runner viscous damper |
| CN111945919B (en) * | 2020-08-13 | 2021-07-16 | 钱子凡 | Curved surface runner viscous damper |
| CN112555325A (en) * | 2020-10-28 | 2021-03-26 | 中国船舶重工集团公司第七0九研究所 | Multidirectional damping controllable magneto-rheological shock absorber |
| CN113714733A (en) * | 2021-05-28 | 2021-11-30 | 中铁七局集团电务工程有限公司 | Production process of high-sealing pneumatic tension compensation device |
| CN113389829A (en) * | 2021-06-10 | 2021-09-14 | 徐州徐工矿业机械有限公司 | Mining dump truck and brake automatic compensator, brake and braking method thereof |
| CN116379098A (en) * | 2023-06-05 | 2023-07-04 | 江苏伊思灵双第弹簧有限公司 | Wave spring for preventing lateral movement and overload |
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| CN108506403B (en) | 2019-12-31 |
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