CN208935247U - The fluid linking damper of liquid pressure self-regulation in a kind of cylinder - Google Patents
The fluid linking damper of liquid pressure self-regulation in a kind of cylinder Download PDFInfo
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- CN208935247U CN208935247U CN201820731034.1U CN201820731034U CN208935247U CN 208935247 U CN208935247 U CN 208935247U CN 201820731034 U CN201820731034 U CN 201820731034U CN 208935247 U CN208935247 U CN 208935247U
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Abstract
The utility model is a kind of fluid linking damper of liquid pressure self-regulation in cylinder, belong to structural damping technical field, viscous damping liquid is full of in master cylinder cylinder, several damping holes are opened up on piston, the damping hole with the opposite self-regulation device of opening direction is respectively set in the two sides of damping hole including perforation and the damping hole with self-regulation device, piston；When piston moves under external force with guide rod, viscous damping liquid at left and right sides of piston in master cylinder can generate pressure difference, viscous damping liquid consumes extraneous input energy by the damping hole high speed jet stream in perforation, when pressure difference is excessive, spring in self-regulation device is compressed into valve opening, the jet stream porthole area of viscous damping liquid increases, so as to adjust the damping parameter of damper, rapid regulating piston two sides master cylinder pressure difference, keep the hysteresis loop of the fluid linking damper full, give full play to the energy dissipation capacity of fluid linking damper, improve safety and the durability of structure.
Description
Technical field
The present invention relates to structural damping technical fields, and in particular to the viscous damping that liquid pressure is self-regulated in a kind of cylinder
Device.
Background technique
With the development of society, the engineerings such as high-level structure, bridge tunnel are increasing, on the other hand, urbanization process is got over
Come faster, population is increasingly concentrated, and destruction and economic loss caused by earthquake and disaster caused by a windstorm are also relatively previous serious.It is tied as 20th century
Structural damping (vibration) system of one of structure engineering circles scientific achievement undergoes an unusual development swift and violent, especially building field in recent decades
The fluid linking damper of application in extensive range.The main function of fluid linking damper is to provide additional damping for structural system, by glutinous
Property medium and damper structure component interaction generate damping force, achieve the purpose that dissipation inputting seismic energy, with guarantee
Structural elements safety.
" a kind of intelligence fluid linking damper " is claimed in the utility model patent of Patent No. CN 206448396U, this is glutinous
Stagnant damper is provided with solenoid valve, the output of solenoid valve and controller on the basis of common fluid linking damper in damping hole
End is connected, and the input terminal of controller is connected with First Speed sensor and senses with the second speed being arranged in connection otic placode
Device, the information that controller is inputted by sensor control the opening and closing of solenoid valve.But above-mentioned utility model patent needs constantly
Power supply to guarantee the running of controller, the route of solenoid valve, sensor and controller needs rationally setting, so this is practical new
The technique of type patent is not easy, and higher cost；Further, since using controller, sensor, solenoid valve, apparatus failure is generated
A possibility that greatly increase, and the investigation of failure and maintenance it is very inconvenient.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides in a kind of cylinder liquid pressure be self-regulated fluid linking damper,
By the pressure difference of piston two sides master cylinder cylinder internal viscosity damping liquid, the spring of control valve is pushed, keeps pressure difference in cylinder excessive
When, the damping hole of obstruction originally is opened, increases the number of the damping hole of viscous damping liquid jet, to adjust the resistance of damper
Buddhist nun's parameter gives full play to the energy dissipation capacity of fluid linking damper, improves the safety of damping (vibration) effect and structure.
The purpose of the present invention can be achieved through the following technical solutions: the master cylinder full of viscous damping liquid, the master
Its axis direction is provided with guide rod in cylinder, one end that guide rod stretches out master cylinder is welded and fixed with left connection otic placode, the guide rod other end
Across master cylinder and stretch in secondary cylinder, secondary cylinder is welded and fixed with right connection otic placode, and the middle part of guide rod is socketed a piston, make piston with
Guide rod keeps identical movement, and master cylinder is divided into two cylinder bodies in left and right by piston；Several damping holes are offered on piston, are divided into setting
The damping hole of self-regulation device and the damping hole for not setting self-regulation device, the damping for not setting self-regulation device is normally opened, piston
Two sides are all arranged the damping hole of self-regulation device, but the open-shut direction of the self-regulation device in two kinds of damping holes be it is opposite,
Effect is to make to guarantee that guide rod is moved in different directions, and the viscous damping liquid at left and right sides of piston in master cylinder generates larger pressure difference
When, there is corresponding valve that can open with the pressure difference in master cylinder cylinder at left and right sides of regulating piston, specific working mode is shown in reality
Apply mode.
Further, the self-regulation device in the damping hole is made of spring and valve, and one end of spring and piston are solid
Fixed, the other end is fixed with valve, and the opening and closing of valve is controlled by spring, and the rigidity of spring is selected according to regulation pressure values, regulation
Pressure values are generally 25~50MPa, and spring carries out precommpression when installing, and decrement is generally 10% to the 50% of spring overall length,
It is to avoid piston in the dynamic lower movement of external world's shake (vibration) that it, which is acted on, and viscous damping liquid pushes valve open in smaller pressure difference, i.e.,
In the case where small shake (vibration) is dynamic, the damping hole with self-regulation device is to close, or work as piston left and right sides pressure difference because viscid
When damping liquid exchanges in two cylinder of piston or so and reduces or shake that (vibration) is dynamic to disappear, spring can automatically restore to equilibrium-like
State is constantly in damper efficiently so that the viscous damping medium of piston two sides is always maintained at biggish pressure difference in cylinder body
The state of energy consumption.
Further, the one end for self-regulation device being arranged in the damping hole is provided with the block for preventing valve from skidding off duct
With hold a valve in the block slided on same straight line, and two kinds of blocks are welded on piston.
Further, when the gap between the piston and master cylinder is intended merely to reduce piston motion, with master cylinder barrel
Friction, and viscous damping liquid cannot flow wherein, therefore viscous damping liquid only passes through damping hole master at left and right sides of piston
Jet stream in cylinder cylinder, i.e. cylinder internal pressure emphasize that section is only related with the self-regulation device in damping hole.
Further, the valve is the steel billet of cylindrical body, and valve has painting with the surface that damping hole may contact
Layer, can effectively reduce the friction in duct Yu valve contact surface.
Further, left connection otic placode is equipped with bumper close to cylinder body on one side, and effect is that both ambassadors are crossed in shake (vibration)
When colliding, buffer function is played.
Further, guide rod protrudes into master cylinder and the tapping of secondary cylinder is both provided with sealing device, and effect is to avoid damping
Device is leaked in running.
The utility model has the advantages that simple structure of the present invention, and the present invention emphasizes that full mechanical system is implemented, failure rate is low, high reliablity,
Can be according to the pressure difference of fluid linking damper liquid in master cylinder cylinder at left and right sides of the piston under extraneous movement, automatic adjustment is originally
Closed self-regulation device changes the damping parameter of damper, gives full play to the energy dissipation capacity of fluid linking damper, improves structure
Safety and durability.
Detailed description of the invention
It in order to more clearly illustrate the technical solutions in the embodiments of the present invention, below will be in embodiment technical description
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the invention
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the sectional view of inventive piston left end；
Fig. 2 is the Section A-A cross-sectional view of Fig. 1；
Fig. 3 is the section B-B cross-sectional view of Fig. 1；
Fig. 4 is self-regulation device detail drawing of the present invention；
Fig. 5 is the C-C cross-sectional view of Fig. 4；
Fig. 6 is the self-regulation device opening process figure in damping hole 6 of the invention；
Fig. 7 is the self-regulation device opening process figure in damping hole 13 of the invention.
In FIG. 1 to FIG. 7,1 is left connection otic placode；2 be guide rod；3 be master cylinder；4 be piston；5 be valve；6 be the first resistance
Buddhist nun hole；7 be seal receptacle；8 be secondary cylinder；9 be spring；10 be right connection otic placode；11 be gap；12 be bumper；13 be the second resistance
Buddhist nun hole；14 be the damping hole without self-regulation device.
Specific embodiment
Apply example to implementation of the invention with reference to the accompanying drawing to elaborate: the present embodiment is being with technical solution of the present invention
Under the premise of implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
As shown in Figure 1, Figure 2, Figure 3 shows, the fluid linking damper that liquid pressure is self-regulated in a kind of cylinder according to the invention is main
Including left connection otic placode 1, right connection otic placode 7, master cylinder 3, secondary cylinder 8, guide rod 2, piston 4, valve 5 and spring 9 etc., in master cylinder 3
Full of viscous damping liquid；Guide rod 2 is set in master cylinder 3, and guide rod 2 can be moved back and forth along the axial direction of master cylinder 3, be socketed in
The piston and guide rod 2 at 2 middle part of guide rod remain identical movement, can not for the damping parameter of all kinds of dampers in the prior art
Self-regulation or self-regulation mode are complicated and uneconomical, and the present invention provides liquid pressures in a kind of cylinder of simple structure to be self-regulated
Fluid linking damper improved method, emphasize it is Fully-mechanized, according to master cylinder at left and right sides of extraneous input energy auto-control piston
Viscous damping liquid pressure in cylinder improves the energy consumption of fluid linking damper to automatically adjust the damping parameter of fluid linking damper
Ability, it is characterised in that construction procedure is as follows:
(1) channel table of the first damping hole 6, the sliding of 13 inner valve 5 of the second damping hole on the piston 4 being prefabricated in the factory
Coating is painted on face and the surface of valve 5, one end of spring 9 is respectively welded and is fixed on damping hole 6, in damping hole 13, spring 9
The other end valve 5 is welded and fixed；
(2) block 15 is weldingly fixed on to the design position of the first damping hole 6 and the second damping hole 13, by piston 4 and is led
Bar 2 is put into prefabricated master cylinder 3 and secondary cylinder 8, and installs sealing device in the tapping that guide rod 2 protrudes into master cylinder 3 and secondary cylinder 8；
(3) master cylinder 3 is assembled into an entirety, left connection otic placode 1 is welded and fixed on the guide rod 2 in the outside of master cylinder 3,
Right connection otic placode 10 is welded and fixed in the outside of secondary cylinder 8；
(4) liquid injection port and venthole are opened, is injected viscous damping medium in master cylinder 3 in the way of pressure injection, until
Only viscous damping medium that gas outlet is overflowed and when without gas, i.e. viscous damping medium full of in master cylinder 3, stopping injection, and
Close liquid injection port and venthole.
As shown in Figure 4, Figure 5, the self-regulation device is made of spring 9 and valve 5, and one end of spring 9 and piston 4 weld
Fixed, the other end is welded and fixed with valve 5, as shown in Figure 1, Figure 6, Figure 7, is set on piston 4 there are two types of damping hole, is divided into certainly
The first damping hole 6, the second damping hole 13 and the damping hole 14 without self-regulation device of regulating device, it is described without self-regulation
The damping hole 14 of device is normally opened, and the self-regulation device in the damping hole with self-regulation device is separately positioned on the first resistance
The both ends in Buddhist nun hole 6 and the second damping hole 13, and the opening square of the first damping hole 6 and the self-regulation device in the second damping hole 13
To being opposite.
The course of work of above-described embodiment is as follows:
The course of work one: it is moved when shake (vibration) occurs for outside, when guide rod 2 moves from left to right, piston 4 is in master cylinder from left-hand
Right movement, liquid pressure increases in piston right hand master cylinder, and liquid pressure reduces in piston left hand master cylinder.
If damper both ends speed of related movement is little, the pressure difference of liquid is smaller in master cylinder at left and right sides of piston, living
The viscous damping liquid filled in right hand master cylinder is smaller to the pressure of valve 5, and the decrement of spring 9 is smaller, as shown in fig. 7, working as bullet
When the decrement of spring 9 is no more than the decrement of spring in (b) figure, all it is not enough to open the valve 5 in self-regulation device, it is viscid
Damping liquid only flows in the damping hole 14 for not setting self-regulation device, consumes externally input energy by high-speed jet.
If the relative velocity at damper both ends is larger, the pressure difference of liquid is larger in master cylinder at left and right sides of piston, piston
The valve 5 in the second damping hole of viscous damping liquid-driving 13 in right hand master cylinder slides in duct along same straight line, spring 9
Decrement increase with it, and the valve 5 in the first damping hole 6 will not skid off duct under the limitation of block 15, such as Fig. 7 institute
Show, when the decrement of spring 9 is more than the decrement of the spring in (b) figure, valve 5 starts to start, the area of circulation road with
The decrement of spring 9 become larger and increase, viscous damping liquid negotiability in two sides is also reinforced therewith；When spring 9
When decrement reaches the decrement of the spring in figure (c), valve 5 is fully opened, and viscous damping liquid can be in 13 He of damping hole
Jet stream in 14 two kinds of ducts, since the number in jet stream duct increases, the pressure difference of liquid can be by master cylinder at left and right sides of piston
It quickly adjusts, makes the pressure difference kept stable on piston both sides.
When the pressure difference of liquid in the master cylinder of piston two sides is because damping hole unlatching, produces the high rapid fire of viscous damping liquid
When becoming smaller after stream, the pressure born on valve 5 becomes smaller, and spring 9 restores to equilbrium position, when 5 retraction position of valve to Fig. 7
(b) when position between Fig. 7 (a), damp bore closure, make viscous damping liquid bear pressure master cylinder be able to maintain it is higher
Stress level, be constantly in the state efficiently to consume energy.
The course of work two: it is moved when shake (vibration) occurs for outside, when guide rod 2 moves from right to left, piston 4 is in master cylinder from dextrad
Left movement, liquid pressure increases in piston left hand master cylinder, and liquid pressure reduces in piston right hand master cylinder.
If damper both ends speed of related movement is little, the pressure difference of liquid is smaller in master cylinder at left and right sides of piston, living
The viscous damping liquid filled in left hand master cylinder is smaller to the pressure of valve 5, and the decrement of spring 9 is smaller, as shown in fig. 6, spring 9
Decrement be no more than (b) figure in spring decrement when, be all not enough to open the valve 5 in self-regulation device, viscous damping
Liquid only flows in the damping hole 14 for not setting self-regulation device, consumes externally input energy by high-speed jet.
If the relative velocity at damper both ends is larger, the pressure difference of liquid is larger in master cylinder at left and right sides of piston, piston
The valve 5 in the first damping hole of viscous damping liquid-driving 6 in right hand master cylinder slides in duct along same straight line, spring 9
Decrement increase with it, and the valve 5 in the second damping hole 13 will not skid off duct under the limitation of block 15, such as Fig. 6 institute
Show, when the decrement of spring 9 is more than the decrement of the spring in Fig. 6 (b) figure, valve 5 starts to start, the face of fluidic channel
Product increases as the decrement of spring 9 becomes larger, and the negotiability of piston two sides master cylinder internal viscosity damping liquid is also reinforced therewith；
When the decrement of spring 9 reaches the decrement of the spring in Fig. 6 (c), valve 5 is fully opened, and viscous damping liquid can be
Jet stream in damping hole 6 and 14, since the number in jet stream duct increases, the pressure difference of liquid can be quick in the master cylinder of piston two sides
It adjusts, makes the pressure difference kept stable on piston both sides.
When the pressure difference of liquid in the master cylinder of piston two sides is because damping hole unlatching, produces the high rapid fire of viscous damping liquid
When becoming smaller after stream, the pressure born on valve 5 becomes smaller, and spring 9 restores to equilbrium position, when 5 retraction position of valve to Fig. 6
(b) when position between Fig. 6 (a), damp bore closure, make viscous damping liquid bear pressure master cylinder be able to maintain it is higher
Stress level, be constantly in the state efficiently to consume energy.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
1. the fluid linking damper that liquid pressure is self-regulated in a kind of cylinder, comprising: the master cylinder (3) full of viscous damping liquid, it is described
It is provided with guide rod (2) in master cylinder (3) along its axis direction, one end and left connection otic placode (1) that guide rod (2) stretches out master cylinder (3) are admittedly
Fixed, left connection otic placode (1) is equipped with bumper (12) on one side close to cylinder body, and guide rod (2) other end passes through master cylinder (3) and stretches to
In secondary cylinder (8), it is connect between master cylinder (3) and secondary cylinder (8) by seal receptacle (7), secondary cylinder (8) and right connection otic placode (10) are fixed,
The middle part of guide rod (2) is socketed a piston (4), it is characterised in that: several damping holes are arranged on (4) in piston, are divided into self-regulated
The damping hole (14) of the first damping hole (6) of regulating device, the second damping hole (13) He Weishe self-regulation device, without self-regulation
The damping hole (14) of device be perforation, and with self-regulation device the first damping hole (6) and the second damping hole (13) oneself
Regulating device is separately positioned on the both ends of damping hole, and the self-regulation dress in the first damping hole (6) and the second damping hole (13)
The opening direction set be it is opposite, the self-regulation device includes valve (5) and spring (9).
2. the fluid linking damper that liquid pressure is self-regulated in a kind of cylinder described in accordance with the claim 1, it is characterised in that: damping hole
In self-regulation device be made of spring (9) and valve (5), one end and the piston (4) of spring (9) are welded and fixed, the other end with
Valve (5) is welded and fixed.
3. the fluid linking damper that liquid pressure is self-regulated in a kind of cylinder described in accordance with the claim 1, it is characterised in that: valve
It (5) is the steel billet of cylindrical body, and valve (5) has with the surface that the first damping hole (6), the second damping hole (13) may contact
Coating.
4. the fluid linking damper that liquid pressure is self-regulated in a kind of cylinder described in accordance with the claim 1, it is characterised in that: damping hole
In be provided with the block (15) for preventing valve (5) from skidding off duct with one end of self-regulation device and valve (5) made to be maintained at same
The block (16) slided on one straight line, and block (15) and block (16) are all welded on piston (4).
5. the fluid linking damper that liquid pressure is self-regulated in a kind of cylinder described in accordance with the claim 1, it is characterised in that: master cylinder
(3) preset clearance (11), generally 1~2mm are gone back between piston (4).
6. the fluid linking damper that liquid pressure is self-regulated in a kind of cylinder described in accordance with the claim 1, it is characterised in that: guide rod
(2) tapping for protruding into master cylinder (3) and secondary cylinder (8) is both provided with sealing device.
7. the fluid linking damper that liquid pressure is self-regulated in a kind of cylinder according to claim 2, it is characterised in that: spring
(9) precommpression is carried out when installing, decrement is generally 10% to the 50% of spring (9) overall length.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820731034.1U CN208935247U (en) | 2018-05-11 | 2018-05-11 | The fluid linking damper of liquid pressure self-regulation in a kind of cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820731034.1U CN208935247U (en) | 2018-05-11 | 2018-05-11 | The fluid linking damper of liquid pressure self-regulation in a kind of cylinder |
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| CN208935247U true CN208935247U (en) | 2019-06-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550998A (en) * | 2021-06-03 | 2021-10-26 | 湖南大学 | Energy consumption liquid damper based on Tesla valve structure |
-
2018
- 2018-05-11 CN CN201820731034.1U patent/CN208935247U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550998A (en) * | 2021-06-03 | 2021-10-26 | 湖南大学 | Energy consumption liquid damper based on Tesla valve structure |
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Assignee: Suqian Dewei Fiberglass Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: X2019320000281 Denomination of utility model: Viscous damper for self-adjusting pressure of liquid in cylinder Granted publication date: 20190604 License type: Common License Record date: 20191119 Assignee: Nanjing Boke New Material Industry Research Institute Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: X2019320000283 Denomination of utility model: Viscous damper for self-adjusting pressure of liquid in cylinder Granted publication date: 20190604 License type: Common License Record date: 20191119 Assignee: Suqian De Wei new material Co., Ltd Assignor: Nanjing Forestry University Contract record no.: X2019320000282 Denomination of utility model: Viscous damper for self-adjusting pressure of liquid in cylinder Granted publication date: 20190604 License type: Common License Record date: 20191119 |