CN109139767A - A kind of two-part nitrogen gas spring for preventing killing function with noise reduction - Google Patents
A kind of two-part nitrogen gas spring for preventing killing function with noise reduction Download PDFInfo
- Publication number
- CN109139767A CN109139767A CN201811272445.XA CN201811272445A CN109139767A CN 109139767 A CN109139767 A CN 109139767A CN 201811272445 A CN201811272445 A CN 201811272445A CN 109139767 A CN109139767 A CN 109139767A
- Authority
- CN
- China
- Prior art keywords
- piston bar
- noise reduction
- gas spring
- nitrogen gas
- cylinder body
- 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.)
- Pending
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 229910001873 dinitrogen Inorganic materials 0.000 title claims abstract description 33
- 230000009467 reduction Effects 0.000 title claims abstract description 30
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 9
- 239000011159 matrix material Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- 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
- F16F9/0209—Telescopic
- F16F9/0227—Telescopic characterised by the piston construction
-
- 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
- F16F9/0209—Telescopic
- F16F9/0281—Details
-
- 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
-
- 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
-
- 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
- F16F9/36—Special sealings, including sealings or guides for piston-rods
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of with the anti-two-part nitrogen gas spring for killing function of noise reduction, including cylinder body and elevated pressure nitrogen air cavity is connected in cylinder body air inlet, charge valve is installed in the air inlet, bushing is installed in cylinder body, cushion chamber is formed in the bottom of elevated pressure nitrogen air cavity, First piston bar is equipped in the bushing above cushion chamber, the First piston bar is hollow structure, the bottom of First piston bar is provided with annular groove, second piston bar is equipped in First piston bar, the center of second piston bar lower part offers chamber, it has been bolted in the upper end of second piston bar by platen, the upper surface by platen offers noise reduction slot.Its remarkable result is: compensating for nitrogen gas spring route problem seen in existing market；By being increased stress surface by platen, so that the reverberation matrix method of nitrogen gas spring is more stable；Reduce contact noise；Avoid the case where First piston bar bottom is killed without backhaul or popped out.
Description
Technical field
The present invention relates to piston rod type gas spring equipment technology fields, and in particular to one kind has the function of that noise reduction is anti-and kills
Two-part nitrogen gas spring.
Background technique
Nitrogen gas spring is a kind of component with spring function, and high pressure nitrogen is sealed in determining container by it, external force
Nitrogen is compressed by piston rod, when the external force is removed, is expanded by high pressure nitrogen, to obtain certain elastic force pressure.It is mainly by cylinder
The composition such as cylinder, guide holder, sealing ring, O-ring and piston rod.Nitrogen gas spring is compared to more traditional steel wire spring in identical space
It can provide the reverberation matrix method of several times or more, therefore not only can widely be applied in die industry, also can be applied to other works
Industry field, such as automobile, electronics, the industries such as instrument.However, nitrogen gas spring does not replace steel wire spring completely at present, because commonly
Nitrogen gas spring stroke is limited, is unable to satisfy the contractive condition of 1 times or more compression ratio.
In addition, existing nitrogen gas spring is at work, pressure is changed linearly with the variation of decrement.At present it is domestic and
Most of import nitrogen gas spring is all made of the lubricant effect that addition lubricating oil mode keeps piston rod and sealing ring.But work as piston
When overtravel or lubricating fluid are added excessive, it is easy to submerge nitrogen gas spring bottom end in lubricating fluid, will cause just
Phase backhaul is powerless or directly stuck in bottom.Meanwhile in each punching course, the collision of nitrogen gas spring contact surface and to air
Extruding generate explosion sound, strong noise pollution is caused to production environment.
Summary of the invention
In view of the deficiencies of the prior art, the object of the present invention is to provide a kind of low spatial occupation rate, long stroke, big reverberation matrix methods
And structure is simple, and the two-part nitrogen for preventing killing function with noise reduction of more stable reverberation matrix method is brought under limit use state
Spring.
In order to achieve the above objectives, The technical solution adopted by the invention is as follows:
A kind of two-part nitrogen gas spring for preventing killing function with noise reduction, including cylinder body, offer in the bottom of the cylinder body
With the air inlet that elevated pressure nitrogen air cavity is connected in cylinder body, charge valve is installed in the air inlet, lining is installed in the cylinder body
Set, key are: being formed with cushion chamber in the bottom of the elevated pressure nitrogen air cavity, be equipped in the bushing above the cushion chamber
First piston bar, the First piston bar are hollow structure, and the bottom of the First piston bar is provided with annular groove, and the ring
The area ratio of shape slot and First piston bar bottom end face is not less than 1/3, is equipped with second piston bar in the First piston bar, and
It is tightly connected between the First piston bar and bushing and between First piston bar and second piston bar, the second piston
The center of bar lower part offers chamber, which communicates with the elevated pressure nitrogen air cavity, cushion chamber, in the upper of the second piston bar
End has been bolted by platen, should be offered noise reduction slot by the upper surface of platen.
Further, first flange mounting groove is offered in the bottom of the cylinder body, is offered in the waist of the cylinder body
Second flange mounting groove.
Further, the rectangular in cross-section of the first flange mounting groove, the section of the second flange mounting groove are in arc
Shape.
By the flange mounting groove of two kinds of different structures, different mounting flange installations can be selected and fix, to adapt to difference
Use condition.Flange is fastened on mold by screw, is played firm nitrogen gas spring direction vector and playing stress
Effect.
Further, circle and the first sealing are kept by the first dustband, first between the First piston bar and bushing
Circle is tightly connected.
Further, circle and the is kept by the second dustband, second between the First piston bar and second piston bar
Two sealing rings are tightly connected.
Further, threaded mounting hole there are two being opened up in the bottom surface of the cylinder body, and the connection of two threaded mounting holes
The center line of line and the air inlet is perpendicular.In the production and processing of nitrogen gas spring, it is desirable that its aeration aperture must pacify with bottom
It fills hole and keeps vertical, therefore ensure that the verticality of aeration aperture and mounting hole by above-mentioned design, and then help to improve product
Quality.
Further, the noise reduction slot is staggeredly formed by lateral noise reduction slot and longitudinal noise reduction slot.It is processed by platen top
Noise reduction slot reduces the collision of contact surface and the tight-face blasting sound to air in each punching course of mold, additionally it is possible to play
The effects of emptying, oil extraction.
Further, the section of the annular groove is rectangle, semicircle or triangle.
By the annular of above structure, the active area of gas in First piston bar bottom and cylinder body is increased, when first
When lubricating fluid or less is submerged in piston rod bottom end, the upward active force being subject to will be much larger than by downward active force, so that
Nitrogen gas spring solves stuck phenomenon, and obtains good backhaul starting force, reduces when lubricating fluid table is left in piston rod bottom end
The mutation pressure value that face obtains.
Remarkable result of the invention is:
1. compact-sized, space utilization rate is higher, in the case where identical height of cylinder, has longer stroke, makes up
Nitrogen gas spring route problem seen in existing market, makes it possess broader practice face.
2. stress surface is increased, so that the backhaul of one section of piston rod pressure and nitrogen gas spring by installing additional by platen
Power is more stable.
3. by setting noise reduction slot, so that contact face dividing contact, reduces contact noise；It is played when compressed air simultaneously
Guide functions reduce airblasting sound；And oil extraction effect is played in punching course after the maintenance of die surface oil.
4. increasing the forced area of First piston bar bottom end by annular groove, more more stable reverberation matrix methods are obtained,
The pressure step value for reducing the backhaul initial stage, when overtravel uses or the limiting conditions such as excessive are added for lubricating fluid,
The case where First piston bar bottom is killed without backhaul or popped out is avoided, helps to ensure that equipment is safer more effectively
Operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram at a visual angle of the invention；
Fig. 2 is the structural schematic diagram at another visual angle of the invention；
Fig. 3 is the partial enlargement diagram of A in Fig. 2；
Fig. 4 is main view of the invention；
Fig. 5 is cross-sectional view of the invention；
Fig. 6 is the partial enlargement diagram of B in Fig. 5.
Specific embodiment
Specific embodiment and working principle of the present invention will be described in further detail with reference to the accompanying drawing.
As shown in Fig. 1~Fig. 6, a kind of with the anti-two-part nitrogen gas spring for killing function of noise reduction, including cylinder body 1, at this
The bottom of cylinder body 1 offers the air inlet 3 being connected with elevated pressure nitrogen air cavity 2 in cylinder body 1, is installed with charge valve in the air inlet 3,
It is formed with cushion chamber 4 in the bottom of the elevated pressure nitrogen air cavity 2, the top inside the cylinder body 1 is installed with bushing 5, in bushing 5
In be equipped with First piston bar 6, the First piston bar 6 be hollow structure, the bottom of the First piston bar is provided with annular
Slot 7, and the area ratio of the annular groove 7 and 6 bottom end face of First piston bar is not less than 1/3, is equipped in the First piston bar 6
Second piston bar 8, and it is close between the First piston bar 6 and bushing 5 and between First piston bar 6 and second piston bar 8
Envelope connection, the center of 8 lower part of second piston bar offer chamber 9, the chamber 9 and the elevated pressure nitrogen air cavity 2, cushion chamber 4
It communicates, is connected with by bolt 10 by platen 11, should be offered by the upper surface of platen 11 in the upper end of the second piston bar 8
Noise reduction slot 12, the noise reduction slot 12 are staggeredly formed by lateral noise reduction slot and longitudinal noise reduction slot.
It can further be seen from figure 1 that opening up in the bottom surface of the cylinder body 1, there are two threaded mounting holes 13, and two screw threads
The connecting line of mounting hole 13 and the center line of the air inlet 3 are perpendicular.
As shown in figure 4, offering first flange mounting groove 14 in the bottom of the cylinder body 1, opened in the waist of the cylinder body
Equipped with second flange mounting groove 15.Specifically, the rectangular in cross-section of the first flange mounting groove 14, the second flange installation
The section of slot 15 is arc-shaped.
In the specific implementation, between the First piston bar 6 and bushing 5 and First piston bar 6 and second piston bar 8 it
Between sealing structure it is similar, wherein between the First piston bar 6 and bushing 5 by the first dustband 16, first keep circle 17
It is tightly connected with the first sealing ring 18.Pass through the second dustband 19, second between the First piston bar 6 and second piston bar 8
Circle 20 and the second sealing ring 21 is kept to be tightly connected.
When implementation, the section of the annular groove 7 is rectangle, semicircle or triangle, can also be certainly other shapes, protect
Under the premise of demonstrate,proving enough area accountings, in order to be processed as criterion.
This programme is by being improved to First piston bar 6 and second piston bar 8 for a piston rod of traditional nitrogen gas spring
Composition, and sealing element is set in two piston rods, during it is used and worked, second piston bar 8 above rise pure
The effect of pure piston rod, the First piston bar 6 play the function of piston rod and shell.It in this way can be effectively by nitrogen gas spring
Space fully utilize, thus effectively increased in the case where same 1 height of cylinder body nitrogen gas spring use stroke；
In the annular groove of 6 bottom of First piston bar setting, the forced area of First piston bar bottom end is increased, is obtained more more stable
Reverberation matrix method, avoid the case where First piston bar bottom is killed without backhaul or popped out.By installation by platen 11,
Stress surface is increased, so that the reverberation matrix method of one section of piston rod pressure and nitrogen gas spring is more stable；And it is set at the top of by platen 11
The noise reduction slot 12 set, so that contact face dividing contact, reduces contact noise.
Technical solution provided by the present invention is described in detail above.Specific case used herein is to this hair
Bright principle and embodiment is expounded, method of the invention that the above embodiments are only used to help understand and its
Core concept.It should be pointed out that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, it can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection of the claims in the present invention
In range.
Claims (8)
1. a kind of with the anti-two-part nitrogen gas spring for killing function of noise reduction, including cylinder body, the bottom of the cylinder body offer with
The air inlet that elevated pressure nitrogen air cavity is connected in cylinder body is installed with charge valve in the air inlet, is installed with bushing in the cylinder body,
It is characterized by: be formed with cushion chamber in the bottom of the elevated pressure nitrogen air cavity, the is equipped in the bushing above the cushion chamber
One piston rod, the First piston bar are hollow structure, and the bottom of the First piston bar is provided with annular groove, and the annular
The area ratio of slot and First piston bar bottom end face is not less than 1/3, is equipped with second piston bar, and institute in the First piston bar
It states between First piston bar and bushing and is tightly connected between First piston bar and second piston bar, the second piston bar
The center of lower part offers chamber, which communicates with the elevated pressure nitrogen air cavity, cushion chamber, in the upper end of the second piston bar
It has been bolted by platen, noise reduction slot should have been offered by the upper surface of platen.
2. according to claim 1 with the anti-two-part nitrogen gas spring for killing function of noise reduction, it is characterised in that: described
The bottom of cylinder body offers first flange mounting groove, offers second flange mounting groove in the waist of the cylinder body.
3. according to claim 2 with the anti-two-part nitrogen gas spring for killing function of noise reduction, it is characterised in that: described the
The section of the rectangular in cross-section of one flange mounting groove, the second flange mounting groove is arc-shaped.
4. according to claim 1 with the anti-two-part nitrogen gas spring for killing function of noise reduction, it is characterised in that: described the
Circle is kept to be tightly connected with the first sealing ring by the first dustband, first between one piston rod and bushing.
5. according to claim 1 with the anti-two-part nitrogen gas spring for killing function of noise reduction, it is characterised in that: described the
Circle is kept to be tightly connected with the second sealing ring by the second dustband, second between one piston rod and second piston bar.
6. according to claim 1 with the anti-two-part nitrogen gas spring for killing function of noise reduction, it is characterised in that: described
The bottom surface of cylinder body is opened up there are two threaded mounting hole, and the center line phase of the connecting line of two threaded mounting holes and the air inlet
Vertically.
7. according to claim 1 with the anti-two-part nitrogen gas spring for killing function of noise reduction, it is characterised in that: the drop
Slot of making an uproar staggeredly is formed by lateral noise reduction slot and longitudinal noise reduction slot.
8. according to claim 1 with the anti-two-part nitrogen gas spring for killing function of noise reduction, it is characterised in that: the ring
The section of shape slot is rectangle, semicircle or triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811272445.XA CN109139767A (en) | 2018-10-29 | 2018-10-29 | A kind of two-part nitrogen gas spring for preventing killing function with noise reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811272445.XA CN109139767A (en) | 2018-10-29 | 2018-10-29 | A kind of two-part nitrogen gas spring for preventing killing function with noise reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109139767A true CN109139767A (en) | 2019-01-04 |
Family
ID=64806326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811272445.XA Pending CN109139767A (en) | 2018-10-29 | 2018-10-29 | A kind of two-part nitrogen gas spring for preventing killing function with noise reduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109139767A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056594A (en) * | 2019-05-23 | 2019-07-26 | 儒拉玛特自动化技术(苏州)有限公司 | Buffer gear |
| CN113294477A (en) * | 2021-04-21 | 2021-08-24 | 徐州东宏机械制造有限公司 | Air spring with flexible stroke |
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| CN106593990A (en) * | 2017-02-08 | 2017-04-26 | 临沂金利液压科技有限公司 | Hydraulic cylinder easy to start |
| CN207261548U (en) * | 2017-08-01 | 2018-04-20 | 江苏耐玛鑫精密机械有限公司 | A kind of overtravel uses self-relieving nitrogen gas spring |
| CN108105310A (en) * | 2016-11-24 | 2018-06-01 | 江苏耐玛鑫精密机械有限公司 | Two section of one kind or more piece piston rod type nitrogen gas spring |
| CN208982567U (en) * | 2018-10-29 | 2019-06-14 | 重庆特力普尔机械设备有限公司 | A kind of two-part nitrogen gas spring for preventing killing function with noise reduction |
-
2018
- 2018-10-29 CN CN201811272445.XA patent/CN109139767A/en active Pending
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| CN1364433A (en) * | 2001-01-09 | 2002-08-21 | 尤利乌斯·布卢姆有限公司 | Brake and buffer device special for movable furniture parts |
| ES1055525U (en) * | 2003-07-10 | 2003-12-16 | Martinez Juan Jose Benavides | Nitrogen gas spring travel variable (Machine-translation by Google Translate, not legally binding) |
| CN105750424A (en) * | 2014-12-17 | 2016-07-13 | 张庆彬 | Low-noise stamping die |
| CN204878495U (en) * | 2015-04-09 | 2015-12-16 | 高铭 | Protected against explosion nitrogen spring |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056594A (en) * | 2019-05-23 | 2019-07-26 | 儒拉玛特自动化技术(苏州)有限公司 | Buffer gear |
| CN113294477A (en) * | 2021-04-21 | 2021-08-24 | 徐州东宏机械制造有限公司 | Air spring with flexible stroke |
| CN113294477B (en) * | 2021-04-21 | 2024-05-03 | 徐州东宏机械制造有限公司 | Flexible-stroke gas spring |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No.92, Wuxing Road, tongjiaxi Town, Beibei District, Chongqing Applicant after: CHONGQING TELIPUER MACHINERY EQUIPMENT Co.,Ltd. Address before: Xiangyu Street Airport Development Zone Road 401120 Chongqing city Yubei District Shuangfeng Bridge No. 15 Building 2 Applicant before: CHONGQING TELIPUER MACHINERY EQUIPMENT Co.,Ltd. |
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| CB02 | Change of applicant information |