CN208203314U - A kind of piston type mining single prop with magnetic seal - Google Patents
A kind of piston type mining single prop with magnetic seal Download PDFInfo
- Publication number
- CN208203314U CN208203314U CN201820767721.9U CN201820767721U CN208203314U CN 208203314 U CN208203314 U CN 208203314U CN 201820767721 U CN201820767721 U CN 201820767721U CN 208203314 U CN208203314 U CN 208203314U
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- magnetic
- piston
- seal
- oil cylinder
- cavity
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Abstract
A kind of piston type mining single prop with magnetic seal, including oil cylinder, piston and pedestal, oil cylinder is fixedly connected on pedestal, piston coaxial is placed in oil cylinder, and the outer wall of piston is close to the inner wall of oil cylinder, the outer wall of the piston is provided with annular groove, magnetic seal body is provided in annular groove, magnetic seal body includes every magnetic cavity, magnet, magnetic inductive block, film layer and magnetic current liquid, every in magnetic cavity insertion annular groove, and it is set as being open every the side of magnetic cavity close to piston, magnet is located at every in the magnetic cavity and side of the close oil cylinder of abutting, magnetic inductive block envelopes magnet, film layer is placed in the aperture position every magnetic cavity, magnetic current liquid is filled in every magnetic cavity, in the closed area that magnetic inductive block and film layer surround.The purpose of this utility model is that by designing a kind of piston type mining single prop with magnetic seal, to solve existing piston type mining single prop oil liquid, sealing performance is not good, security risk distinct issues.
Description
Technical field
It is concretely a kind of mining list of the piston type with magnetic seal the utility model relates to dig up mine to use support apparatus
Pillar body.
Background technique
For piston type mining single prop as a kind of common mining mating support apparatus, application is extremely widespread, existing
Piston type mining single prop mainly uses two ways to carry out oil liquid sealing, and one is the contact surface settings in piston and oil cylinder
Sealing ring, another kind are that piston is placed in cavity, and cavity is welded as a whole with oil cylinder, and both of which comes with some shortcomings,
The former sealing ring is easily damaged by such environmental effects such as temperature, pressure, and the latter can make to weld because prolonged weight acts on
Position cracking is connect, permanent, good sealing effect is both unable to reach, so that piston type mining single prop is in practical application
In there are very big security risks.
Utility model content
The purpose of this utility model is to provide a kind of piston type mining single prop with magnetic seal, to solve
Sealing performance is not good for existing piston type mining single prop oil liquid, there are problems that very big security risk.
In order to solve the above technical problems, the utility model uses following technical scheme:
A kind of piston type mining single prop with magnetic seal, including oil cylinder, piston and pedestal, oil cylinder are fixedly connected
On pedestal, piston coaxial is placed in oil cylinder, and the outer wall of piston is close to the inner wall of oil cylinder, and the outer wall of the piston is provided with
Annular groove is provided with magnetic seal body in annular groove, and magnetic seal body includes every magnetic cavity, magnet, magnetic inductive block, film layer and magnetic current liquid
Body and is set as being open every in magnetic cavity insertion annular groove every the side of magnetic cavity close to piston, and magnet is located at every in magnetic cavity and being close to
Close to the side of oil cylinder, magnetic inductive block envelopes magnet, and film layer is placed in the aperture position every magnetic cavity, and magnetic current liquid is filled in every magnetic
In the closed area that chamber, magnetic inductive block and film layer surround.
Further technical solution is that the magnet is circular ring shape permanent magnet, to ensure stable magnetic energy.
Further technical solution is that the surface of the two sides up and down of the magnetic inductive block is set as tooth form, and in the tooth form
Under it is symmetrical, when magnetic current liquid is by magneticaction, is easily installed, fixes magnetic inductive block itself, and synchronous effect simultaneously in every
Extruding efficiency is played in the upper and lower position of magnetic cavity.
Further technical solution is that seal groove is provided on the piston, and seal groove is located at the top of annular groove, sealing
O-ring seal is installed in slot.
Further technical solution is that guide groove is provided on the piston, and guide groove is located above seal groove, guide groove
Guide ring is inside installed.
Compared with prior art, the beneficial effects of the utility model are at least one of following:
The utility model replaces existing sealing ring around sealing technique by using magnetic current sealing technique, is greatly promoted
The performance of sealing, because actually solid-state seals for sealing ring sealing or welded seal, the former is acted on by frictional force makes two contact surfaces
It fits closely, inevitably has the position that can not be contacted, the latter is more susceptible to stress and cracks, and actually liquid is close for magnetic current sealing
Envelope is strong more than sealing performance by the way of being sealed using solid-state by the continuous infiltration of magnetic current liquid.
The utility model passes through the magnetic current seal of design specific structure, i.e., by every magnetic cavity, magnet, magnetic inductive block, magnetic current liquid
The side wall of body and annular groove forms confined space, realizes sealing to greatest extent to closed form, guarantees magnetic current seal
Long service life, sealing effect are good.
Film layer further is arranged by the one side in magnetic current seal to prevent to occur to sink when magnetic current liquid in the utility model
The case where product phenomenon, deposits in the side wall of annular groove, and magnetic current sealing efficiency is caused to weaken, more guarantee magnetic current sealing effect is steady
It is fixed to present.
Detailed description of the invention
Fig. 1 is the appearance diagram of the piston type mining single prop with magnetic seal；
Fig. 2 is the structural schematic diagram of magnetic seal body.
Description of symbols: 1- oil cylinder, 2- piston, 3- pedestal, 4- annular groove, 5- magnetic seal body, 6- are every magnetic cavity, 7- magnetic
Iron, 8- magnetic inductive block, 9- film layer, 10- magnetic current liquid, 11- seal groove, 12-O type sealing ring, 13- guide groove, 14- guide ring.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Referring to fig. 1 and fig. 2, one embodiment of the present embodiment is a kind of piston type mine with magnetic seal
It is fixedly connected on the base 3 with individual prop, including oil cylinder 1, piston 2 and pedestal 3, oil cylinder 1, connection type mainly has two
Kind, pin connection is connected with steel wire, selects to use according to actual conditions, piston 2 is longitudinally disposed inside oil cylinder 1, and coaxial with oil cylinder 1
The heart, and the inner wall of the outer wall of piston 2 and oil cylinder 1 fits closely together, convenient for after high-voltage oil liquid injection, piston 2 can be steady
It glossily does along its axial direction and moves upper and lower, back and forth, annular groove 4 is provided on the outer wall of the piston 2, annular groove 4 is commonly designed
For annulus shape, no specific cone angle is provided with magnetic seal body 5 in annular groove 4, and magnetic seal body 5 is in specific structure, specifically
Including every magnetic cavity 6, magnet 7, magnetic inductive block 8, film layer 9 and magnetic current liquid 10, every magnetic cavity 6 be in an annular housing, tightly embedded rings
In shape slot 4, and it is set as being open every the side of magnetic cavity 6 close to piston 2, related components when magnetic current seal 5 easy to produce
Assembly, while facilitating the injection of magnetic current liquid 10, magnet 7 is located at every in the magnetic cavity 6 and side of the close oil cylinder 1 of abutting, this structure
Design is to make magnetic current liquid 10 under the magnetic drive of magnet 7, concentrates and act on film layer 9, makes its sealing more closely, simultaneously
Under reaction force, so that magnetic current seal 5 is more abutted the inner wall of oil cylinder 1, reach better seal effect, further, magnetic conduction
Block 8 envelopes magnet 7 completely, to ensure that magnetic current liquid 10 can be greater area of by magnetic drive, by changing magnetic inductive block 8
Appearance, moreover it is possible to purposefully drive the concentration of magnetic current liquid 10 to act on a certain position, further, film layer 9 is placed in every magnetic
The aperture position of chamber 6, magnetic current seal 5 is closed after injecting convenient for magnetic current liquid 10, and film layer 9 itself has extremely strong elasticity, just
In ensureing that magnetic current liquid 10 circulates while closed, meanwhile, it avoids when sedimentation siltation occurs for magnetic current liquid 10
The case where being trapped in 4 side wall of annular groove more efficiently ensures the sealing performance of magnetic current seal 5, finally, magnetic current liquid 10 fills
Point be filled in every in the closed area that magnetic cavity 6, magnetic inductive block 8 and film layer 9 surround, and acted under the magnetic drive of magnet 7
Every magnetic cavity 6 and film layer 9, to realize stabilization, the excellent sealing of magnetic current seal 5 Yu annular groove 4 and oil cylinder 1.
According to above-described embodiment, another embodiment of the utility model is that the magnet 7 is circular ring shape permanent magnet,
The magnetic energy of magnet 7 must meet magnetic current liquid 10 enough and realize good sealing performance, to select rare earth permanent-magnetic material such as neodymium iron boron
It is preferred.
According to first embodiment, another embodiment of the utility model is that the surface of the magnetic inductive block 8 is set as tooth
Shape, this design be to enable magnetic current liquid 10 under magnetic drive along the surface orientation of magnetic inductive block 8 act on periphery every magnetic
On chamber 6 and film layer 9, enhance the sealing effect of magnetic current seal 5 and annular groove 4, further, by will magnetic inductive block 8 it is upper and lower
Two sides is designed as symmetrical tooth form, convenient for guaranteeing to bear the active force of same magnetic current liquid 10 on symmetrical position, thus
Make 2 uniform force of oil cylinder 1 and piston, direction is located at same horizontal line, is unlikely to generate additional tangential force.
According to first embodiment, another embodiment of the utility model is that the external coating of the film layer 9 has high temperature resistant
Anti-oxidation wear-preventing paint, film layer 9 must bear high temperature as the stronger interlayer of elasticity under the action of magnetic current liquid 10 and piston 2
High pressure, and require in permanent motion process it is wear-resisting and anti-oxidant, to avoid the reduced performance of film layer 9, or even damage.
According to first embodiment, the utility model a further embodiment is to be provided with seal groove 11 on the piston 2,
The effect that seal groove 11 is arranged is progress secondary seal protection, caused magnetic when tilting to avoid contingencies such as piston 2
Stream seal 5 cannot realize its sealing effect well, and further, the position of seal groove 11 is in the top of annular groove 4, this is more
It is beneficial to play the role of secondary seal protection, meanwhile, O-ring seal 12 is installed in seal groove 11, selects high resilience, one
Determine mechanical strength and heat-proof corrosion resistant erosion rubber material preferably.
According to first embodiment, new one embodiment of the utility model is to be provided with guide groove 13 on the piston 2,
Guide groove 13 is located at 11 top of seal groove, and guide ring 14 is equipped in guide groove 13, and the purpose of installation guide ring 14 is to prevent
Piston 2 occurs directly to contact and rub with oil cylinder 1 during the motion, plays and protects oil cylinder 1 and the not impaired work of piston 2
With the common used material of guide ring 14 is polyformaldehyde.
The utility model replaces existing sealing ring around sealing technique by using magnetic current sealing technique, is greatly promoted
The performance of sealing, because actually solid-state seals for sealing ring sealing, the former fits closely two contact surfaces by frictional force effect, hardly possible
Exempt to have the position that can not be contacted, the latter is more susceptible to stress and cracks, and magnetic current seals actually liquid airproof, passes through magnetic current
The continuous infiltration of liquid 10, more than using solid-state sealing by the way of sealing performance it is strong.
The utility model passes through the magnetic current seal 5 of design specific structure, i.e., by every magnetic cavity 6, magnet 7, magnetic inductive block 8, magnetic
The side wall of flowing liquid 10 and annular groove 4 forms confined space, realizes sealing to greatest extent to closed form, guarantees magnetic current
5 long service life of seal, sealing effect are good.
Film layer 9 further is arranged by the one side in magnetic current seal 5 to prevent to send out when magnetic current liquid 10 in the utility model
The case where raw depositional phenomenon, deposits in the side wall of annular groove 4, and magnetic current sealing efficiency is caused to weaken, more guarantee magnetic current sealing effect
Stablizing for fruit is presented.
" one embodiment " for being spoken of in the present specification, " another embodiment ", " another embodiment " etc.,
Refer to combine the embodiment description specific features, structure or feature include the application generality description at least one
In embodiment.It is not centainly to refer to the same embodiment that statement of the same race, which occur, in multiple places in the description.Furthermore, it is understood that
When describing a specific features, structure or feature in conjunction with any embodiment, what is advocated is come in fact in conjunction with other embodiments
Existing this feature, structure or feature are also fallen in the scope of the utility model.
Although reference be made herein to the utility model is described in multiple explanatory embodiments of the utility model, still,
It should be understood that those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations
It will fall within scope and spirit disclosed in the present application.More specifically, it discloses in the application, drawings and claims
In range, can building block to theme combination layout and/or layout carry out a variety of variations and modifications.In addition to building block
And/or outside the modification and improvement of layout progress, to those skilled in the art, other purposes also be will be apparent.
Claims (6)
1. a kind of piston type mining single prop with magnetic seal, including oil cylinder (1), piston (2) and pedestal (3), oil cylinder
(1) it is fixedly connected on pedestal (3), piston (2) is coaxially placed in oil cylinder (1), and the outer wall of piston (2) and oil cylinder (1) is interior
Wall is close to, it is characterised in that: the outer wall of the piston (2) is provided with annular groove (4), is provided with magnetic seal in annular groove (4)
Body (5), magnetic seal body (5) include every magnetic cavity (6), magnet (7), magnetic inductive block (8), film layer (9) and magnetic current liquid (10), every magnetic
Chamber (6) is embedded in annular groove (4), and is set as being open every the side of magnetic cavity (6) close to piston (2), and magnet (7) is located at every magnetic cavity
(6) in and it is close to close to the side of oil cylinder (1), magnetic inductive block (8) envelopes magnet (7), and film layer (9) is placed in opening every magnetic cavity (6)
Mouth position, magnetic current liquid (10) are filled in every in the closed area that magnetic cavity (6), magnetic inductive block (8) and film layer (9) surround.
2. the piston type mining single prop according to claim 1 with magnetic seal, it is characterised in that: the magnet
It (7) is circular ring shape permanent magnet.
3. the piston type mining single prop according to claim 1 with magnetic seal, it is characterised in that: the magnetic conduction
The surface of the two sides up and down of block (8) is set as tooth form, and tooth form distribution symmetrical above and below.
4. the piston type mining single prop according to claim 1 with magnetic seal, it is characterised in that: the film layer
(9) external coating has the anti-oxidation wear-preventing paint of high temperature resistant.
5. the piston type mining single prop according to claim 1 with magnetic seal, it is characterised in that: the piston
(2) it is provided on seal groove (11), seal groove (11) is located at the top of annular groove (4), is equipped with O-shaped sealing in seal groove (11)
It encloses (12).
6. the piston type mining single prop according to claim 1 with magnetic seal, it is characterised in that: the piston
(2) it is provided on guide groove (13), guide groove (13) is located above seal groove (11), is equipped with guide ring in guide groove (13)
(14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820767721.9U CN208203314U (en) | 2018-05-23 | 2018-05-23 | A kind of piston type mining single prop with magnetic seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820767721.9U CN208203314U (en) | 2018-05-23 | 2018-05-23 | A kind of piston type mining single prop with magnetic seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208203314U true CN208203314U (en) | 2018-12-07 |
Family
ID=64517066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820767721.9U Expired - Fee Related CN208203314U (en) | 2018-05-23 | 2018-05-23 | A kind of piston type mining single prop with magnetic seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208203314U (en) |
-
2018
- 2018-05-23 CN CN201820767721.9U patent/CN208203314U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181207 Termination date: 20200523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |