CN108591338A - A kind of mixed dynamic formula buffer of gas/liquid - Google Patents
A kind of mixed dynamic formula buffer of gas/liquid Download PDFInfo
- Publication number
- CN108591338A CN108591338A CN201810677087.4A CN201810677087A CN108591338A CN 108591338 A CN108591338 A CN 108591338A CN 201810677087 A CN201810677087 A CN 201810677087A CN 108591338 A CN108591338 A CN 108591338A
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- China
- Prior art keywords
- seal chamber
- piston
- flap
- air inlet
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F16F9/32—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
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/3405—Throttling passages in or on piston body, e.g. slots
-
- 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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
-
- 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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
- F16F2222/126—Fluid damping using gases
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention provides a kind of gas/liquids to mix dynamic formula buffer, including cylinder body, piston rod and piston, and the cylinder body is interior to be divided into upper seal chamber and lower seal chamber by piston, and the piston is connect with piston rod；The upper seal chamber is equipped with the first air inlet, and the lower seal chamber is equipped with the second air inlet, and the lower seal chamber bottom is equipped with liquid medium, and cylinder interior is equipped with the liquid line of connection upper seal chamber and lower seal chamber；Second air inlet position is higher than liquid medium liquid level；First air inlet is connected to the second air inlet；The piston is equipped with reset check valve, and air pressure is more than air pressure in upper seal chamber in seal chamber instantly, and lower seal chamber and upper seal chamber are blocked by the reset check valve；Instantly air pressure is less than or equal to air pressure in upper seal chamber in seal chamber, and lower seal chamber and upper seal chamber is connected by the reset check valve.The present invention can play slowing effect so that play the role of a coriolis acceleration in moderating process, have the function that buffering.
Description
Technical field
The present invention relates to buffer field or field of environment protection more particularly to a kind of gas/liquid to mix dynamic formula buffer.
Background technology
Buffer is mainly used to inhibit the concussion and impact when rebound, it primarily serves cushioning effect, and less impact is to protect
The other structures in equipment are protected, a large amount of buffers in the prior art are mostly bumper and pneumatic cushion, it leads
Use spring and air and can absorb the principle of impact during compression to play the role of buffering, spring buffer and
The main application of pneumatic cushion：Wind turbine, wind cabinet.Air-conditioning box.Air compressor, air-conditioner set, generator, cooling tower etc.
The damping vibration-isolating of equipment.
In modern field of environment protection, in order to cope with burst accident, the lock of quick closedown is set in potentially dangerous channel
Door gear needs fast reaction, the closed shutter in a manner of freely falling body, and such gate usually has casting manufacture, mechanism
Characteristic does not allow the moment in closing to have enormous impact, and doorframe is made to damage, it is therefore desirable to punching is reduced or eliminated in closing gate
It hits, slow-down；And gate needs certain closing forces that gate is made to seal when closed, so needing to keep certain speed again
Degree, can be that closing gate is tight.
But the prior art and equipment cannot play the slowing effect to move along a straight line when such as falling.As can additional special resistance
Buddhist nun's device designs, then is not only able to play the effect of damping vibration-isolating, moreover it is possible to play slowing effect so that has in moderating process a additional
Acceleration.
Invention content
In response to the deficiencies in the existing technology, the present invention provides a kind of gas/liquids to mix dynamic formula buffer, be in the nature gas/
Liquid mixes the deceleration isolation mounting of dynamic formula buffering, buffering and deceleration such as falling from high altitude or situation out of control of falling is solved, to protect people
Member's safety of life and property.Pneumatic cushion of the present invention is not necessarily to accumulation of energy, does not add any elastic device, so in addition to
Outside service wear, elastic fatigue is not generated.
The present invention achieves the above technical objects by the following technical means.
A kind of mixed dynamic formula buffer of gas/liquid, including cylinder body, piston rod and piston, the cylinder body is interior to be divided by piston
Upper seal chamber and lower seal chamber, the piston are connect with piston rod；The upper seal chamber is equipped with the first air inlet, the lower sealing
Chamber is equipped with the second air inlet, and the lower seal chamber bottom is equipped with liquid medium, and it is close under that cylinder interior is equipped with the upper seal chamber of connection
Seal the liquid line of chamber；Second air inlet position is higher than liquid medium liquid level；First air inlet and the second air inlet
Connection；
The piston is equipped with reset check valve, and air pressure is more than air pressure in upper seal chamber in seal chamber instantly, by described
Reset check valve blocks lower seal chamber and upper seal chamber；Instantly air pressure is less than or equal to air pressure in upper seal chamber in seal chamber, passes through
The lower seal chamber of reset check valve conducting and upper seal chamber.
Further, the reset check valve includes flap and flap limit base；Stepped hole, the rank are equipped in the piston
Terraced hole includes the first hole and the second hole, installs flap limit base in second hole, the flap be placed on flap limit base and
Between second hole, and the diameter of flap is more than the first bore dia；The flap limit base, which is internally provided with, to be connected to lower seal chamber
Cavity, air pressure is more than air pressure in upper seal chamber in seal chamber instantly, and the first hole and the second hole are blocked by the flap.
Further, the flap material is rubber or tetrafluoroethene；The valve flap structure is flexible sheet or Thin Elastic
Film.
Further, the flap limit base includes annular base and cross frame, and described cross frame one end is fixed on ring
Shape base center, the annular base are mounted on the piston area that contact with lower seal chamber, and the cross frame is mounted on the
In two holes, the cross frame other end places flap.
Further, the piston is equipped with oil trap, and the oil trap is connected to the first hole by groove, is used for liquid
Medium flows back into lower seal chamber by upper seal chamber.
Further, the groove is inclined groove, and liquid medium is flowed into reset check valve for accelerating.
Further, the groove and the mouth of oil sump are higher than oil-collecting trench bottom so that there are liquid for oil-collecting trench bottom
Medium, for lubricating.
Further, first air inlet is connected to the second air inlet outside cylinder body, first air inlet and second
Throttle valve is equipped between air inlet.
The beneficial effects of the present invention are：
1. gas/liquid of the present invention mixes dynamic formula buffer, in such a way that gas/liquid is mixed and moved, slowing effect is played so that
There is a coriolis acceleration in moderating process, simple in structure, the structure of spring, does not have the function that buffering, and in office
Under what static state all will not elastic remnants, not will produce elastic fatigue, there is no compression potential energy.
2. gas/liquid of the present invention mixes dynamic formula buffer, according to loading condition, the opening that can adjust throttle valve is big
It is small, determine the kinetic energy that buffer absorbs.
3. gas/liquid of the present invention mixes dynamic formula buffer, oil trap bottom is higher than by groove and the mouth of oil sump
Portion so that there are liquid mediums for oil-collecting trench bottom, for lubricating.
4. gas/liquid of the present invention mixes dynamic formula buffer, the oil trap is connected to the first hole by groove, and being used for will
Liquid medium flows back into lower seal chamber by upper seal chamber.
Description of the drawings
Fig. 1 is that gas/liquid of the present invention mixes dynamic formula buffer structure schematic diagram.
Fig. 2 is the schematic diagram that gas/liquid of the present invention mixes dynamic formula buffer buffer status.
Fig. 3 is the schematic diagram that gas/liquid of the present invention mixes dynamic formula buffer reset state.
Fig. 4 is reset check valve structure chart of the present invention.
In figure：
1- cylinder bodies；2- pistons；3- piston rods；The upper seal chambers of 4-；Seal chamber under 5-；6- oil traps；7- throttle valves；8- liquid
Medium；9- grooves；10- reset check valves；11- flaps；12- flap limit bases；The first holes 13-；The second holes 14-.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously
It is without being limited thereto.
In conjunction with shown in Fig. 1, gas/liquid of the present invention mixes dynamic formula buffer, including cylinder body 1, piston rod 3 and piston 2, institute
It states in cylinder body 1 and upper seal chamber 4 and lower seal chamber 5 is divided by piston 2, the piston 2 is connect with piston rod 3；It is described close
It seals chamber 4 and is equipped with the first air inlet, the lower seal chamber 5 is equipped with the second air inlet, and 5 bottom of lower seal chamber is equipped with liquid medium
8, cylinder body 1 is internally provided with the liquid line of connection upper seal chamber 4 and lower seal chamber 5；Second air inlet position is higher than liquid
8 liquid level of medium；First air inlet is connected to the second air inlet outside cylinder body 1, first air inlet and the second air inlet
Throttle valve 7 is equipped between mouthful.
The piston 2 is equipped with reset check valve 10, and air pressure is more than air pressure in upper seal chamber 4 in seal chamber 5 instantly, passes through
The reset check valve 10 blocks lower seal chamber 5 and upper seal chamber 4；Instantly air pressure is less than or equal in upper seal chamber 4 in seal chamber 5
Lower seal chamber 5 and upper seal chamber 4 is connected by the reset check valve 10 in air pressure.In terms of effect reset check valve 10 with it is common
Conventional check valve principle it is different.
As shown in figure 4, the reset check valve 10 includes flap 11 and flap limit base 12；Rank is equipped in the piston 2
Terraced hole, the stepped hole include the first hole 13 and the second hole 14, and the first hole 13 is located on the face that piston 2 is contacted with upper seal chamber 4；
Second hole 14 is located on the face that piston 2 is contacted with lower seal chamber 5, and 14 to the first hole of the second hole, 13 diameters are big；Second hole 14
Interior installation flap limit base 12, the flap 11 is placed between flap limit base 12 and the second hole 14, and the diameter of flap 11
More than 13 diameter of the first hole；The flap limit base 12 is internally provided with the cavity being connected to lower seal chamber 5, instantly in seal chamber 5
Air pressure is more than air pressure in upper seal chamber 4, and flap 11 is pressed on by the air pressure of lower seal chamber 5 between the first hole 13 and the second hole 14
On step surface, therefore the first hole 13 and the second hole 14 can be blocked.11 material of the flap be rubber either tetrafluoroethene or
Diaphragm material.The valve flap structure is flexible sheet or elastic film.The flap limit base 12 includes annular base and cross
Holder, described cross frame one end are fixed on annular base center, can connect with lower seal chamber 5 inside such flap limit base 12
It is logical；The annular base is mounted on 2 face of piston contacted with lower seal chamber 5, and the cross frame is mounted on the second hole 14
Interior, the cross frame other end places flap 11.
In order to realize that liquid medium 8 can be set on the piston 2 with automatic back flow to lower seal chamber 5 in idle state
There are oil trap 6, the oil trap 6 to be connected to by groove 9 with the first hole 13.Instantly air pressure is less than or equal to upper sealing in seal chamber 5
Air pressure in chamber 4, liquid medium 8 flow back into lower seal chamber 5 by the cavity inside second hole 14 and flap limit base 12.Institute
It is inclined groove to state groove 9.The mouth that the groove 9 is connected to oil trap 6 is higher than 6 bottom of oil trap, and it is residual to be located at 6 bottom of oil trap
The liquid medium 8 stayed is used to lubricate the piston 2 of moving process.Oil trap 6 is only big chamfering in Fig. 4, but oil trap 6 also may be used
Think other forms, such as the pit on 2 surface of piston.
In conjunction with shown in Fig. 2 and Fig. 3, the course of work is buffered：
Initial equilibrium state：Piston 2 is located at the top of cylinder body 1, and piston 2 and cylinder body 1 are opposing stationary, in whole static or move downward
State；
First buffer status：When cylinder body 2 is by drag effect stop motion, piston 2 continues to move downward, this inscribes seal chamber
Air pressure is more than air pressure in upper seal chamber 4 in 5, and the reset check valve 10 blocks lower seal chamber 5 and upper seal chamber 4；It is gas this moment
Body compressed liquid medium 8, liquid medium 8 enter upper seal chamber 4 by liquid line；
Second buffer status：The gas of lower seal chamber 5 gradually passes through throttle valve 7 as air pressure becomes larger and enters upper seal chamber 4,
It can control the specific discharge of gas by throttle valve 7, this general process control was at 3--5 seconds or so；
Buffering terminates：2 stop motion of piston, need not arrive extreme position, prevent from impacting, and usually consider there is 50mm's or so
Travel position surplus, liquid medium 8 is in piston upper this moment, due to air pressure in this at present seal chamber 5 and air pressure in upper seal chamber 4
Identical, for liquid medium 8 by 10 automatic back flow of reset check valve to lower seal chamber 5, small part liquid medium 8 deposits collection in oil trap
In 6, when reset from lubricating action；
Reset the course of work：
Initial equilibrium state：Piston 2 is located at 1 bottom of cylinder body.
Reset state：Piston 2 moves upwards, and cylinder body 1 is slide downward by gravity opposing pistons 2, in lower seal chamber 5
Air pressure is less than or equal to air pressure in upper seal chamber 4, and gas is compressed quickly downward from reset check valve 10 in upper seal chamber 4.
Reset terminates：Piston 2 reaches 1 top of cylinder body.
The embodiment is the preferred embodiments of the present invention, but present invention is not limited to the embodiments described above, not
Away from the present invention substantive content in the case of, those skilled in the art can make it is any it is conspicuously improved, replace
Or modification all belongs to the scope of protection of the present invention.
Claims (8)
1. a kind of gas/liquid mixes dynamic formula buffer, including cylinder body (1), piston rod (3) and piston (2), pass through in the cylinder body (1)
Piston (2) is divided into seal chamber (4) and lower seal chamber (5), and the piston (2) connect with piston rod (3)；The upper seal chamber
(4) it is equipped with the first air inlet, the lower seal chamber (5) is equipped with the second air inlet, which is characterized in that lower seal chamber (5) bottom
Portion is equipped with liquid medium (8), and cylinder body (1) is internally provided with the liquid line of connection upper seal chamber (4) and lower seal chamber (5)；It is described
Second air inlet position is higher than liquid medium (8) liquid level；First air inlet is connected to the second air inlet；
The piston (2) is equipped with reset check valve (10), and seal chamber (5) interior air pressure instantly is more than upper seal chamber (4) interior air pressure,
Lower seal chamber (5) and upper seal chamber (4) are blocked by the reset check valve (10)；Instantly seal chamber (5) interior air pressure be less than etc.
In upper seal chamber (4) interior air pressure, lower seal chamber (5) and upper seal chamber (4) are connected by the reset check valve (10).
2. gas/liquid according to claim 1 mixes dynamic formula, which is characterized in that the reset check valve (10) includes flap
(11) and flap limit base (12)；Stepped hole is equipped in the piston (2), the stepped hole includes the first hole (13) and the second hole
(14), installation flap limit base (12) in second hole (14), the flap (11) are placed on flap limit base (12) and the
Between two holes (14), and the diameter of flap (11) is more than the first hole (13) diameter；The flap limit base (12) be internally provided with
The cavity of lower seal chamber (5) connection, instantly seal chamber (5) interior air pressure are more than upper seal chamber (4) interior air pressure, pass through the flap
(11) the first hole (13) and the second hole (14) are blocked.
3. gas/liquid according to claim 2 mixes dynamic formula, which is characterized in that flap (11) material is rubber or four
Vinyl fluoride；Flap (11) structure is flexible sheet or elastic film.
4. gas/liquid according to claim 2 mixes dynamic formula, which is characterized in that the flap limit base (12) includes annular bottom
Seat and cross frame, described cross frame one end are fixed on annular base center, and the annular base is mounted on and lower seal chamber
(5) on piston (2) face contacted, and the cross frame is mounted in the second hole (14), and the cross frame other end is placed
Flap (11).
5. gas/liquid according to claim 2 mixes dynamic formula, which is characterized in that the piston (2) is equipped with oil trap (6), institute
Oil trap (6) is stated to be connected to by groove (9) with the first hole (13).
6. gas/liquid according to claim 5 mixes dynamic formula, which is characterized in that the groove (9) is inclined groove.
7. gas/liquid according to claim 5 mixes dynamic formula, which is characterized in that the groove (9) was connected to oil trap (6)
Mouth is higher than oil trap (6) bottom.
8. gas/liquid according to claim 1 mixes dynamic formula, which is characterized in that first air inlet and the second air inlet exist
Connection outside cylinder body (1), is equipped with throttle valve (7) between first air inlet and the second air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810677087.4A CN108591338B (en) | 2018-06-27 | 2018-06-27 | Gas and liquid mixed buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810677087.4A CN108591338B (en) | 2018-06-27 | 2018-06-27 | Gas and liquid mixed buffer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108591338A true CN108591338A (en) | 2018-09-28 |
| CN108591338B CN108591338B (en) | 2020-01-07 |
Family
ID=63633940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810677087.4A Active CN108591338B (en) | 2018-06-27 | 2018-06-27 | Gas and liquid mixed buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108591338B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273875A (en) * | 2019-05-30 | 2019-09-24 | 武汉船用机械有限责任公司 | It is automatically replenished the one-way valve piston of fluid |
| CN111300994A (en) * | 2019-12-18 | 2020-06-19 | 重庆市星极齿轮有限责任公司 | Marking machine with slagging-off function |
| CN113606277A (en) * | 2021-05-25 | 2021-11-05 | 上海应用技术大学 | Vehicle electrorheological fluid shock absorber based on hydraulic adjusting system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004132429A (en) * | 2002-10-09 | 2004-04-30 | Kayaba Ind Co Ltd | Pneumatic shock absorber |
| CN101363494A (en) * | 2008-09-19 | 2009-02-11 | 南京航空航天大学 | Liquid-solid mixing medium vibration isolator |
| US20160059656A1 (en) * | 2012-12-21 | 2016-03-03 | Fludicon Gmbh | Vibration Damper |
| CN106151350A (en) * | 2016-08-15 | 2016-11-23 | 深圳前海零距物联网科技有限公司 | Vibration-damping bicycle TRT |
-
2018
- 2018-06-27 CN CN201810677087.4A patent/CN108591338B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004132429A (en) * | 2002-10-09 | 2004-04-30 | Kayaba Ind Co Ltd | Pneumatic shock absorber |
| CN101363494A (en) * | 2008-09-19 | 2009-02-11 | 南京航空航天大学 | Liquid-solid mixing medium vibration isolator |
| US20160059656A1 (en) * | 2012-12-21 | 2016-03-03 | Fludicon Gmbh | Vibration Damper |
| CN106151350A (en) * | 2016-08-15 | 2016-11-23 | 深圳前海零距物联网科技有限公司 | Vibration-damping bicycle TRT |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273875A (en) * | 2019-05-30 | 2019-09-24 | 武汉船用机械有限责任公司 | It is automatically replenished the one-way valve piston of fluid |
| CN110273875B (en) * | 2019-05-30 | 2021-06-01 | 武汉船用机械有限责任公司 | One-way valve piston capable of automatically supplementing fluid |
| CN111300994A (en) * | 2019-12-18 | 2020-06-19 | 重庆市星极齿轮有限责任公司 | Marking machine with slagging-off function |
| CN113606277A (en) * | 2021-05-25 | 2021-11-05 | 上海应用技术大学 | Vehicle electrorheological fluid shock absorber based on hydraulic adjusting system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108591338B (en) | 2020-01-07 |
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