CN208457097U - A kind of novel seal nitrogen gas spring - Google Patents
A kind of novel seal nitrogen gas spring Download PDFInfo
- Publication number
- CN208457097U CN208457097U CN201821048239.6U CN201821048239U CN208457097U CN 208457097 U CN208457097 U CN 208457097U CN 201821048239 U CN201821048239 U CN 201821048239U CN 208457097 U CN208457097 U CN 208457097U
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- CN
- China
- Prior art keywords
- guide sleeve
- magnetic fluid
- plunger rod
- permanent magnet
- cylinder body
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- 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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Abstract
The utility model discloses a kind of novel seal nitrogen gas spring, comprising: cylinder body, be installed on the guide sleeve of cylinder body upper end and be installed in cylinder body and stretch out in the plunger rod outside the guiding set upper side, the guide sleeve inner wall is equipped with the first mounting groove, permanent magnet is installed in first mounting groove, interval is formed between plunger rod on the inside of permanent magnet, and interval is filled with magnetic fluid, magnetic fluid forms magnetic fluid O circle under the magnetic fields of permanent magnet, and magnetic fluid O circle makes to form sealing between guide sleeve and plunger rod.The utility model seals formation between guide sleeve and plunger rod using permanent magnet cooperation magnetic fluid, its sealing effect is highly desirable, achieve the purpose that basic No leakage, high reliablity, and magnetic fluid is long without abrasion, service life, all has sealability under high and low revolving speed, and magnetic fluid has lubricating action, sealing can be combined as a whole with lubrication, it is more convenient to use without additional increase lubricant medium.
Description
Technical field:
The utility model relates to elastic element product technical fields, refer in particular to a kind of novel seal nitrogen gas spring.
Background technique:
With being constantly progressive for science and technology, requirement of the industrial circle to elastic element is higher and higher, has both required elastic member
Part meets the various demands of mechanical structure, and requires the miniaturization and high-performance of elastic element.
Conventional elastic means used in the prior art, such as spring, elastic rubber and air cushion, generated elastic force with
The directly proportional increase of increase of decrement and pressure cannot be kept constant during the work time, and the work that flexible stroke is small, very much
Skill needs constant Flexible change, and conventional elastic means bring very big influence and limitation to production engineering specifications, cannot
Meet process requirements, causes to directly affect product quality and efficiency, production cost is caused to greatly improve.
Nitrogen gas spring in the prior art can solve above-mentioned these problems, currently, the nitrogen gas spring of China's every profession and trade
Based on import, mould nitrogen gas spring (abbreviation punch die nitrogen gas spring or nitrogen gas spring or nitrogen cylinder or nitrogen cylinder) is one kind with elevated pressure nitrogen
Gas is the New Elastic Component on Cool of working media, it is small in size, elastic force is big, stroke is long, stable working, and manufacture is accurate, service life
Long, spring curve is gentle, and do not need preload etc., it has the common elastics such as metal spring, rubber and air cushion component difficult
In the work of completion, simplify mold design and manufacture, facilitate mold installation and adjustment, extend the service life of mold, it is ensured that produces
The stabilization of quality is a kind of optimal elastomeric element of a new generation with flex capability.
Nitrogen gas spring in the prior art includes: cylinder body, the guide sleeve for being installed on cylinder body upper end and is installed in cylinder body
And be arranged in guide sleeve and stretch out in the plunger rod outside the guiding set upper side, only by O-shaped between the guide sleeve and plunger rod
Circle sealing, O-ring generate abrasion after long-term use, influence its sealing effect, and it needs the additional lubricant medium that increases to mention
The lubricant effect between the plunger rod and O-ring is risen, it is not convenient enough to use.
In view of this, the present inventor proposes following technical scheme.
Utility model content:
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of novel seal nitrogen gas spring.
In order to solve the above-mentioned technical problem, the utility model uses following technical proposals: the novel seal nitrogen gas spring
Include: cylinder body, be installed on the guide sleeve of cylinder body upper end and be installed in cylinder body and be arranged in guide sleeve and stretch out in this and lead
Plunger rod to outside set upper side, the guide sleeve inner wall are provided with the first mounting groove, are equipped with permanent magnet in first mounting groove,
Interval is formed on the inside of the permanent magnet between plunger rod, and the interval is filled with magnetic fluid, magnetic of the magnetic fluid in permanent magnet
Magnetic fluid O circle is formed under field action, magnetic fluid O circle makes to form sealing between guide sleeve and plunger rod.
Furthermore, in above-mentioned technical proposal, the permanent magnet uses ndfeb magnet.
Furthermore, in above-mentioned technical proposal, dust seal is provided between guiding set upper side and the plunger rod.
Furthermore, in above-mentioned technical proposal, the dust seal upper end, which has, tilts dust ring, outside the inclination dust ring
Setting is enclosed in inclined-plane.
Furthermore, in above-mentioned technical proposal, it is provided with circlip between the cylinder body and guide sleeve, which will be oriented to
Set is defined in the cylinder body upper end.
Furthermore, in above-mentioned technical proposal, it is provided with guide ring on the inside of the guiding set upper side, which is arranged
In outside the plunger rod.
After adopting the above technical scheme, the utility model have the following beneficial effects: compared with prior art it is practical
Novel to be sealed using permanent magnet cooperation magnetic fluid to formation between guide sleeve and plunger rod, sealing effect is highly desirable, reaches
The purpose of basic No leakage, high reliablity, and the magnetic fluid is long without abrasion, service life, all has sealing energy under high and low revolving speed
Power, to environment without particular/special requirement, and the magnetic fluid has lubricating action, sealing can be combined as a whole with lubrication, be not necessarily to volume
Outer increase lubricant medium, it is more convenient to use, enable the utility model that there is the extremely strong market competitiveness.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment:
The present invention will be further described with attached drawing combined with specific embodiments below.
It as shown in Figure 1, is a kind of novel seal nitrogen gas spring comprising: cylinder body 1, the guide sleeve for being installed on 1 upper end of cylinder body
It 2 and is installed in cylinder body 1 and is arranged in guide sleeve 2 and stretches out in the plunger rod 3 outside 2 upper end of guide sleeve, the guiding
It covers 2 inner walls and is provided with the first mounting groove 21, permanent magnet 4 is installed in first mounting groove 21,4 inside of permanent magnet and plunger rod
Interval is formed between 3, and the interval is filled with magnetic fluid 5, which forms magnetic current under the magnetic fields of permanent magnet 4
Body O circle, magnetic fluid O circle make to form sealing between guide sleeve 2 and plunger rod 3.The utility model cooperates magnetic current using permanent magnet 4
For body 5 to sealing is formed between guide sleeve 2 and plunger rod 3, sealing effect is highly desirable, achievees the purpose that basic No leakage, can
By property height, and the magnetic fluid 5 is long without abrasion, service life, all has sealability under high and low revolving speed, to environment without particular/special requirement,
And the magnetic fluid 5 has lubricating action, sealing can be combined as a whole with lubrication, increase lubricant medium without additional, use
Get up more convenient, enables the utility model that there is the extremely strong market competitiveness.
The permanent magnet 4 uses ndfeb magnet, and magnetic ability is strong, long service life.
Dust seal 6 is provided between 2 upper end of guide sleeve and plunger rod 3.Specifically, 6 upper end of the dust seal tool
There is inclination dust ring 61, which is in inclined-plane, dust can be effectively prevent to enter 2 upper end of guide sleeve with this
Between plunger rod 3, and the dust is fallen along the inclined-plane of inclination dust ring 61, can reach dust removing effects.
It is provided with circlip 11 between the cylinder body 1 and guide sleeve 2, which is defined in guide sleeve 2 on the cylinder body 1
End.It is provided with guide ring 22 on the inside of 2 upper end of guide sleeve, which is sheathed on outside the plunger rod 3, the guide ring 22
In 11 lower section of circlip.
In conclusion the utility model cooperates magnetic fluid 5 close to being formed between guide sleeve 2 and plunger rod 3 using permanent magnet 4
Envelope, sealing effect is highly desirable, achievees the purpose that basic No leakage, high reliablity, and the magnetic fluid 5 are long without abrasion, service life,
All there is sealability under high and low revolving speed, to environment without particular/special requirement, and the magnetic fluid 5 has lubricating action, can will be close
Envelope is combined as a whole with lubrication, more convenient to use without additional increase lubricant medium, enables the utility model have extremely strong
The market competitiveness.
It certainly, is not to limit the utility model and implement the foregoing is merely specific embodiment of the utility model
Range, all equivalent change or modifications done according to structure, feature and principle described in present utility model application the scope of the patents, should all wrap
It includes in present utility model application the scope of the patents.
Claims (6)
1. a kind of novel seal nitrogen gas spring comprising: cylinder body (1), the guide sleeve (2) and peace for being installed on cylinder body (1) upper end
Loaded in cylinder body (1) and being arranged in guide sleeve (2) and stretching out in the plunger rod (3) outside guide sleeve (2) upper end, feature exists
In: guide sleeve (2) inner wall is provided with the first mounting groove (21), is equipped with permanent magnet (4) in first mounting groove (21), should
Interval is formed on the inside of permanent magnet (4) between plunger rod (3), and the interval is filled with magnetic fluid (5), which exists
Magnetic fluid O circle is formed under the magnetic fields of permanent magnet (4), magnetic fluid O circle makes to be formed between guide sleeve (2) and plunger rod (3)
Sealing.
2. a kind of novel seal nitrogen gas spring according to claim 1, it is characterised in that: the permanent magnet (4) uses neodymium
Iron boron magnets.
3. a kind of novel seal nitrogen gas spring according to claim 1, it is characterised in that: guide sleeve (2) upper end with
Dust seal (6) are provided between plunger rod (3).
4. a kind of novel seal nitrogen gas spring according to claim 3, it is characterised in that: dust seal (6) the upper end tool
There are inclination dust ring (61), the setting of the inclination dust ring (61) periphery is in inclined-plane.
5. a kind of novel seal nitrogen gas spring according to claim 1, it is characterised in that: the cylinder body (1) and guide sleeve
(2) circlip (11) are provided between, which is defined in cylinder body (1) upper end for guide sleeve (2).
6. a kind of novel seal nitrogen gas spring according to claim 1, it is characterised in that: in guide sleeve (2) upper end
Side is provided with guide ring (22), which is sheathed on the plunger rod (3) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821048239.6U CN208457097U (en) | 2018-06-29 | 2018-06-29 | A kind of novel seal nitrogen gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821048239.6U CN208457097U (en) | 2018-06-29 | 2018-06-29 | A kind of novel seal nitrogen gas spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208457097U true CN208457097U (en) | 2019-02-01 |
Family
ID=65171549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821048239.6U Active CN208457097U (en) | 2018-06-29 | 2018-06-29 | A kind of novel seal nitrogen gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208457097U (en) |
-
2018
- 2018-06-29 CN CN201821048239.6U patent/CN208457097U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |