CN106641068B - Compression gas spring with outburst force characteristic - Google Patents
Compression gas spring with outburst force characteristic Download PDFInfo
- Publication number
- CN106641068B CN106641068B CN201611007185.4A CN201611007185A CN106641068B CN 106641068 B CN106641068 B CN 106641068B CN 201611007185 A CN201611007185 A CN 201611007185A CN 106641068 B CN106641068 B CN 106641068B
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- China
- Prior art keywords
- outburst
- power source
- cylinder barrel
- gas spring
- piston
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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
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
-
- 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
Abstract
The invention discloses a kind of compression gas springs with outburst force characteristic, including cylinder barrel, one end is located at the piston rod in cylinder barrel, it is characterized in that being equipped with floating piston in cylinder barrel, inert gas is equipped in cylinder barrel cavity between floating piston and piston rod, outburst power source reversible liquefication body is equipped in the cavity that the other end floating piston and cylinder barrel of opposing pistons bar are formed, power source reversible liquefication body is broken out in variation of ambient temperature with reversible physical change, obtains explosive force during breaking out power source reversible liquefication temperature physical change.Energy storage is carried out to outburst power source reversible liquefication body in the working condition that gas spring is in weight bearing full compression stroke, and when the operating ambient temperature of gas spring reaches certain value, complete explosive force work, obtain more stable operating rate, solve the problems, such as the biggish working condition of dynamic force change, it is structurally reasonable simple, it is easy to control.
Description
Technical field
The present invention relates to spring technical field, especially a kind of compression gas spring with outburst force characteristic.
Background technique
The structure of existing compressed gas spring works part is substantially if following product, such as patent announcement number are CN2509373Y
A kind of high pressure compress air spring, including outer cylinder and be installed on outer cylinder both ends rear Feng Yuqian envelope, have piston in outer cylinder, even
The piston rod being connected on piston is pierced by preceding envelope, and sealing shroud is arranged in the outer cylinder by nearby sealing, and sets in one end inner wall of sealing shroud
Step is set, which constitutes annular groove together with the outer wall of piston rod, and outside framework oil seal is placed in groove.For another example patent announcement
Number be CN201908984U, one kind, which can pause, compresses gas spring, including inner wall be equipped with the cylinder barrel of axial damping slot, piston rod and
Plug afterwards, rear plug sealing are fixed on the rear portion of cylinder barrel, and guide sleeve, pilot seal snare fill on the piston rod and be mounted on cylinder barrel
Interior, one end of piston rod is pierced by cylinder barrel, the other end has piston, and the rear portion that piston is located at oil duct is equipped with damped ring, on piston
Oil duct is corresponding with the axial damping slot of cylinder barrel, makes the anchor ring of axial damping slot partition, and axis in inner wall of cylinder with more than one
It is made of to damping slot more than two independent damping slots, this structure can meet the compression gas bullet of different operating range demands
Spring.For another example patent announcement number be CN201218300Y a kind of compression gas spring, including cylinder body, setting the intracorporal piston of cylinder,
It is connect with piston and one end is pierced by the piston rod of cylinder body, cylinder body is connect with piston rod packing, and the front end of piston rod is fixedly connected
Have tubular shield, be fixedly connected with thin type sheath on cylinder body one end similar in piston rod, and tubular shield open end is set with
On thin type sheath, tubular shield is driven to move along the outer peripheral surface of cylinder body when piston rod moves axially.These gas springs all have
There is the elastic curve of near-linear.
Summary of the invention
The object of the present invention is to provide one kind on the basis of conventional gas spring, utilizes outburst power source reversible liquefication body pair
It is instantaneously buffered in the piston rod course of work, overload protection, and has the explosive force different from linear elasticity curvilinear characteristic special
Property compression gas spring.
Above-mentioned technical problem of the invention is mainly to be addressed by following technical proposals: one kind has explosive force special
Property compression gas spring, including cylinder barrel, one end be located at the piston rod in cylinder barrel, it is characterized in that be equipped with floating piston in cylinder barrel,
In cylinder barrel cavity between floating piston and piston rod be equipped with inert gas, opposing pistons bar other end floating piston and
It is equipped with outburst power source reversible liquefication body in the cavity that cylinder barrel is formed, breaks out power source reversible liquefication body in variation of ambient temperature
With reversible physical change, explosive force is obtained during breaking out power source reversible liquefication temperature physical change.
The technical program designs floating piston, makes floating piston cylinder barrel on the basis of existing Ordinary Compression gas spring
The main operating room in inner cavity is separated into two parts, one of them is auxiliary seal room, and floating piston and it is rear stifled between injection outburst it is dynamic
Power source reversible liquefication body, the floating piston other side (operating room Ji Zhu) fill the inert gas of routine work.When normal work,
Inert gas generates the promotion pressure of setting to floating piston, and outburst power source reversible liquefication body is made to be pressurized to form fully liquid shape
State, and at this moment gas spring is in the working condition of weight bearing full compression stroke.And when the operating ambient temperature of gas spring rises to cylinder barrel
Inside outburst power source reversible liquefication body can physical change (distillation) temperature when, that is, generate powerful gas pressure intensity and push and float
Piston, floating piston pushing mechanism and piston rod do the stretching routine to bear a heavy burden, that is, the completion work of explosive force outward.
The separation structure of this inert gas and outburst power source reversible liquefication body ensures that outburst power source is reversible under value of pressure
The most corpusculum machine of liquefaction body also avoids inert gas and uses under admixture with outburst power source reversible liquefication body, and
Cause gas spring plug-hole because breaking out the purity impurities of power source reversible liquefication body, phenomena such as stretching motion has some setbacks.
The technical program reversible physical changes the generation of explosive force, it is crucial just the selection of outburst power source liquefaction body with
Quantum chemical method, it is related to the safety of entire product, reliability, its selection principle is: selection it is nonflammable it is explosive, nontoxic,
Non-corrosive or weak erosive, environmental protection liquefaction body；Selection critically weighted, corresponding critical pressure have reversible physical change object
Matter；Sharp equation of gaseous state etc. carries out dosage calculating.
Preferably, breaking out power source reversible liquefication when inert gas generates the promotion pressure of setting to floating piston
Body is pressurized to form fully liquid state, and gas spring is in the working condition for having weight bearing full compression stroke at this time；When the work of gas spring
As environment temperature rise to cylinder barrel implosion motive source reversible liquefication body can physical change temperature when, i.e., generation air pressure push float
Piston, piston rod does the stretching routine to bear a heavy burden outward at this time.
Preferably, position of the floating piston in cylinder barrel meets: inert gas and the outburst reversible liquid of power source
Change body under value of pressure, outburst power source reversible liquefication body has most corpusculum machine.
Preferably, the outburst power source reversible liquefication body is non-flammable explosive, nontoxic, non-corrosive or weak corrosion
Property environmental protection liquefaction body.
Preferably, the outburst power source reversible liquefication body is critically weighted, corresponding critical pressure with reversible
Physical change substance.
Preferably, outburst power source reversible liquefication body institute's expense is obtained according to the calculating of the physical property of spring
?.Outburst power source reversible liquefication body institute expense comprehensively considers various factors, according to product specific requirement and operating conditions spirit
Definition living.
Preferably, the outburst power source reversible liquefication body is low pressure liquefied gas, the low pressure liquefied gas
Refer to that critical-temperature is greater than 70 degrees Celsius of gas.
Preferably, the outburst power source reversible liquefication body is HFC-134a or carbon dioxide or sulfur hexafluoride or three
Fluorine bromomethane.CO231.0 degrees Celsius of critical-temperature, corresponding critical pressure (i.e. minimum pressure) 73.9 every square metre of kilogram；Often
20 degrees Celsius of temperature, at least about 57.3 every square metre of kilograms (i.e. saturation pressure) are in liquefaction state；The disadvantage is that chance water is weakly acidic,
Weak corrosion, so selecting with caution.SF6, 45.5 degrees Celsius of critical-temperature, corresponding critical pressure (i.e. minimum pressure) 36.8 kilogram
Every square metre；20 degrees Celsius of room temperature, at least 20 every square metre of kilogram of offer (i.e. saturation pressure) is in liquefaction state；The disadvantage is that warm
Room gas is applicable in common material explosive force gas spring.Bromotrifluoromethane (CF3Br), 67 degrees Celsius of critical-temperature, corresponding critical pressure
(i.e. minimum pressure) 39.6 every square metre of kilogram by force；25 degrees Celsius of room temperature, at least 16.2 every square metre of kilogram of offer is (i.e. full
And pressure) could liquefy；The disadvantage is that greenhouse gases, are applicable in common material explosive force gas spring.
HFC-134a also known as HFA 134a, CH2FCF3, 101 degrees Celsius of critical-temperature, corresponding critical pressure
(i.e. minimum pressure) 40 every square metre of kilogram；It is a kind of environmentally friendly gas, is applicable in common material explosive force gas spring.
Preferably, the floating piston includes piston holder, piston holder is equipped with hermetically sealed with inner wall of cylinder
Wear-resistant sealing ring.
Preferably, the piston rod end is equipped with piston component, piston component is equipped with damping hole and to stomata.
The beneficial effects of the present invention are: the technical program is in addition to having support, buffering, braking, height adjustment and angle tune
Section etc. is outside conventional funcs, and gas spring be in the working condition of weight bearing full compression stroke to outburst power source reversible liquefication body into
Row energy storage, and when the operating ambient temperature of gas spring reaches certain value, explosive force work is completed, more smoothly work is obtained
Speed solves the problems, such as the biggish working condition of dynamic force change, structurally reasonable simple, is easy to control, variation multiplicity, adaptability
Extensively, it avoids failing.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention.
Fig. 2 is the floating piston position partial enlargement structural representation of Fig. 1 of the present invention.
Fig. 3 is the piston component position partial enlargement structural representation of Fig. 1 of the present invention.
In figure: 1. front connectors, 2. piston rods, 3. cylinder barrels, 4. pilot seal components, 5. piston components, 51. resistances
Buddhist nun hole, 52. sealing rings, 53. pairs of stomatas, 6. inert gases block up after 7. and connector, 8. floating pistons, 81. piston branch
Frame, 82. wear-resistant sealing rings, 9. outburst power source reversible liquefication bodies.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
As shown in Figure 1, a kind of compression gas spring with outburst force characteristic of the present embodiment, including cylinder barrel 3, piston rod 2, it is living
2 one end of stopper rod is located in cylinder barrel and is equipped with piston component 5, and front connector 1 is arranged in 2 other end of piston rod, in 3 inner cavity one end of cylinder barrel
Equipped with pilot seal component 4, pilot seal component 4 is formed by stacking by three-layer sealed unit, 4 inner hole of pilot seal component and piston
Bar 2 cooperates.
To the rear stifled and 7 one end of connector is equipped with floating piston 8 in cylinder barrel 3, and floating piston 8 includes piston holder 81, living
Filling in bracket 81 is in I-shape construction, as shown in Fig. 2, the circumference of piston holder 81 is equipped with and hermetically sealed wear-resistant of 3 inner wall of cylinder barrel
Sealing ring 82.
The piston component 5 of 2 end of piston rod is equipped with damping hole 51 and to stomata 53, as shown in figure 3, and in piston component
5 and 3 inner wall mating surface of cylinder barrel be equipped with sealing ring 52.
Filled with inert gas 6 in 3 cavity of cylinder barrel between 2 end piston component 5 of floating piston 8 and piston rod, in phase
Filled with outburst power source reversible liquefication body 9 in the cavity that other end floating piston 8 and cylinder barrel 3 to piston rod 2 are formed.
Power source reversible liquefication body 9 is broken out in variation of ambient temperature with reversible physical change, in outburst power
Explosive force is obtained during the reversible liquefication temperature physical change of source.Specifically, when inert gas 6 produces floating piston 8
When the promotion pressure of raw setting, the outburst compression of power source reversible liquefication body 9 forms fully liquid state, at this point, gas spring (produces
Product) in the working condition for having weight bearing full compression stroke.When the operating ambient temperature of gas spring rises to 3 implosion motive source of cylinder barrel
Reversible liquefication body 9 can physical change temperature when, i.e. generation air pressure pushes floating piston 8, and piston rod 2 does bear a heavy burden outward at this time
Stretching routine.
Position setting of the floating piston 8 in cylinder barrel 3 will meet: inert gas 6 and outburst power source reversible liquefication body 9 exist
Under value of pressure, outburst power source reversible liquefication body 9 has most corpusculum machine.This value of pressure and the outburst reversible liquid of power source
Changing 9 expenses of body is to be calculated to obtain according to the physical property of spring.
Further, outburst power source reversible liquefication body 9 is non-flammable explosive, nontoxic, non-corrosive or weak erosive ring
Liquefaction body is protected, is critically weighted, corresponding substance of the critical pressure with reversible physical change.Moreover, outburst power source
Reversible liquefication body 9 is low pressure liquefied gas, and low pressure liquefied gas refers to that critical-temperature is greater than 70 degrees Celsius of gas.
Embodiment one, outburst power source reversible liquefication body 9 are HFC-134a also known as HFA 134a
(CH2FCF3), 101 degrees Celsius of critical-temperature, corresponding 40 every square metre of kilogram of critical pressure, that is, minimum pressure is applicable in common material
Expect explosive force gas spring.
Embodiment two, outburst power source reversible liquefication body 9 is carbon dioxide (CO2), 31.0 degrees Celsius of critical-temperature, corresponding
Critical pressure, that is, minimum pressure is 73.9 every square metre of kilograms；20 degrees Celsius of room temperature, at least about 57.3 every square metre of kilograms
(i.e. saturation pressure) is in liquefaction state.
Embodiment three, outburst power source reversible liquefication body 9 are sulfur hexafluoride (SF6), it is 45.5 degrees Celsius of critical-temperature, corresponding
36.8 every square metre of kilogram of critical pressure (i.e. minimum pressure)；20 degrees Celsius of room temperature, at least 20 every square metre of kilogram of offer
(i.e. saturation pressure) is applicable in common material explosive force gas spring in liquefaction state.
Example IV, outburst power source reversible liquefication body 9 are bromotrifluoromethane.CF3Br is 67 degrees Celsius of critical-temperature, right
Answer 39.6 every square metre of kilogram of critical pressure (i.e. minimum pressure)；25 degrees Celsius of room temperature, at least 16.2 kilogram of offer is often put down
Square rice (i.e. saturation pressure) could be liquefied, and common material explosive force gas spring is applicable in.
In addition, also other liquefaction bodies for being able to satisfy requirement can also be selected or the mixing of other liquefaction bodies is also able to satisfy later
Requirement can use, and it is not limitation of the invention that above-described embodiment, which is the description of the invention, any couple of present invention
Simple transformation after structure, method etc. all belong to the scope of protection of the present invention.
Claims (8)
1. a kind of compression gas spring with outburst force characteristic, including cylinder barrel (3), one end are located at the piston rod (2) in cylinder barrel,
It is characterized in being equipped with floating piston (8) in cylinder barrel, inert gas is equipped in the cylinder barrel cavity between floating piston and piston rod
(6), outburst power source reversible liquefication body is equipped in the cavity that the other end floating piston and cylinder barrel of opposing pistons bar are formed
(9), outburst power source reversible liquefication body is in variation of ambient temperature with reversible physical change, and breaking out, power source is reversible
Explosive force is obtained during liquefaction temperature physical change；Position of the floating piston (8) in cylinder barrel (3) meets:
Under value of pressure, outburst power source reversible liquefication body has minimum for inert gas (6) and outburst power source reversible liquefication body (9)
Body machine；When inert gas (6) to floating piston (8) generate setting promotion pressure when, outburst power source reversible liquefication body (9) by
Swaging is at fully liquid state, and gas spring is in the working condition for having weight bearing full compression stroke at this time；When the building ring of gas spring
Border temperature rise to cylinder barrel implosion motive source reversible liquefication body can physical change temperature when, i.e., generation air pressure push float live
Plug, piston rod (2) does the stretching routine to bear a heavy burden outward at this time.
2. a kind of compression gas spring with outburst force characteristic according to claim 1, it is characterised in that the outburst
Power source reversible liquefication body (9) is non-flammable explosive, nontoxic, non-corrosive or weak erosive environmental protection liquefaction body.
3. a kind of compression gas spring with outburst force characteristic according to claim 1, it is characterised in that the outburst
Power source reversible liquefication body (9) is critically weighted, corresponding substance of the critical pressure with reversible physical change.
4. a kind of compression gas spring with outburst force characteristic according to claim 1, it is characterized in that the outburst is dynamic
Power source reversible liquefication body (9) institute's expense is calculated according to the physical property of spring and is obtained.
5. a kind of compression gas spring with outburst force characteristic according to claim 1, it is characterized in that outburst power source can
Inverse liquefaction body (9) is low pressure liquefied gas, and the low pressure liquefied gas refers to that critical-temperature is greater than 70 degrees Celsius of gas.
6. a kind of compression gas spring with outburst force characteristic according to claim 1, it is characterized in that the outburst is dynamic
Power source reversible liquefication body (9) is HFC-134a or carbon dioxide or sulfur hexafluoride or bromotrifluoromethane.
7. a kind of compression gas spring with outburst force characteristic according to claim 1, it is characterized in that floating piston (8) wraps
It includes piston holder (81), piston holder is equipped with the wear-resistant sealing ring (82) hermetically sealed with cylinder barrel (3) inner wall.
8. a kind of compression gas spring with outburst force characteristic according to claim 1, it is characterized in that the piston rod
(2) end is equipped with piston component (5), and piston component is equipped with damping hole (51) and to stomata (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611007185.4A CN106641068B (en) | 2016-11-16 | 2016-11-16 | Compression gas spring with outburst force characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611007185.4A CN106641068B (en) | 2016-11-16 | 2016-11-16 | Compression gas spring with outburst force characteristic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106641068A CN106641068A (en) | 2017-05-10 |
| CN106641068B true CN106641068B (en) | 2019-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611007185.4A Active CN106641068B (en) | 2016-11-16 | 2016-11-16 | Compression gas spring with outburst force characteristic |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2308421A (en) * | 1995-12-21 | 1997-06-25 | Draftex Ind Ltd | Gas spring temperature compensation |
| JPH10213170A (en) * | 1997-01-24 | 1998-08-11 | Kayaba Ind Co Ltd | Gas spring with temperature compensating function |
| JP2002089612A (en) * | 2000-09-14 | 2002-03-27 | Kayaba Ind Co Ltd | Gas spring |
| JP2006226343A (en) * | 2005-02-16 | 2006-08-31 | Kayaba Ind Co Ltd | Accumulator and shock absorber |
| DE102005013413A1 (en) * | 2005-03-23 | 2006-10-05 | Stabilus Gmbh | Gas spring for use in motor vehicle, uses temperature drop and volume rise of incompressible balance medium e.g. water, to reduce volume of one of gas working spaces inside closed cylinder |
| CN100427791C (en) * | 2005-06-16 | 2008-10-22 | 斯泰必鲁斯有限公司 | Gas spring |
| JP2010014195A (en) * | 2008-07-03 | 2010-01-21 | Kayaba Ind Co Ltd | Single tube type hydraulic shock absorber |
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2016
- 2016-11-16 CN CN201611007185.4A patent/CN106641068B/en active Active
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Address after: No.66 Chunxiao xunhai Road, Beilun District, Ningbo City, Zhejiang Province Patentee after: Ningbo Yili Industrial Co.,Ltd. Address before: No.66 Chunxiao xunhai Road, Beilun District, Ningbo City, Zhejiang Province Patentee before: NINGBO YILI SHOCK ABSORBER Co.,Ltd. |