CN207033474U - The durable hydraulic Support with Suspending Hollow Plug of anti-corrosion - Google Patents
The durable hydraulic Support with Suspending Hollow Plug of anti-corrosion Download PDFInfo
- Publication number
- CN207033474U CN207033474U CN201720758404.6U CN201720758404U CN207033474U CN 207033474 U CN207033474 U CN 207033474U CN 201720758404 U CN201720758404 U CN 201720758404U CN 207033474 U CN207033474 U CN 207033474U
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- CN
- China
- Prior art keywords
- live post
- stainless steel
- live
- hydraulic support
- hollow plug
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of durable hydraulic Support with Suspending Hollow Plug of anti-corrosion, belongs to coal mine individual hydraulic prop technical field.The stainless steel sleeve for substituting live post overlay coating is fixed with the utility model live post outer wall, the stainless steel sleeve forms interference fit with live post body by the method expanded with heat and contract with cold and is coated on the external diameter of live post body, and welded seal is used between the lower end of the stainless steel sleeve and the annular boss.The utility model eliminates the production process of the coating on live post surface, and stainless steel sleeve is coated on into live post surface, will greatly enhance the resistance to corrosion of pillar, improves the service life of pillar.
Description
Technical field
A kind of hydraulic prop is the utility model is related to, belongs to coal mine individual hydraulic prop technical field.
Background technology
At present, hydraulic Support with Suspending Hollow Plug is because it uses plunger type sealing principle, has big intensity height of stroke etc.
Advantage, substantial amounts of use is obtained in underground coal mine, because live post surface and the sealing ring of hydraulic prop form sealing surface,
Live post surface uses chemical nickel plating or chromium plating, and underground coal mine is in the environment of acidic corrosive, removing in hydraulic prop use
Transport, fall and touch the coating corrosion for making live post surface, come off.Sealing position premature failure is caused to reveal, hydraulic prop uses the longevity
Life greatly shortens, and repair rate is higher, adds the cost of user.From substantial amounts of hydraulic Support with Suspending Hollow Plug repair
Statistics, be all because the coating corrosion on live post surface, coming off and pit reason causes the failure of seal to be unable to normal use,
The quality of coating on live post surface is improved, is played an important role to improving the life-span.Live post surface uses chemical plating or plating, is arranged in production
The waste liquid gone out easily pollutes to environment, if there is a kind of corrosion resistance, resistance to performance of colliding with to exceed the method for plating and chemical plating,
Remove the production process of the coating on live post surface, environmental protection will be improved service life and produce positive effect.
The content of the invention
Part in order to overcome the above-mentioned deficiencies of the prior art, the utility model provide a kind of durable suspension type of force plunger formula of anti-corrosion
Hydraulic prop, the production process of the coating on live post surface is eliminated, live post body surface is coated into resistance to corrosion very
Good and higher hardness stainless steel sleeve.Because stainless steel has very strong antiseptic power, stainless steel sleeve is coated on live post surface, will
The resistance to corrosion of pillar is greatly enhanced, improves the service life of pillar.
The utility model is achieved by the following technical solution：A kind of durable suspension type of force plunger formula monomer hydraulic branch of anti-corrosion
Post, it includes oil cylinder and is located at in-oil cylinder live post, the top of live post equipped with top cover and sealing cap assemblies, cylinder ports and live post it
Between be provided with handle body, the bottom of oil cylinder is provided with base；Seal assembly I is housed between the sealing cap assemblies and the inwall of live post,
Seal assembly II and connection steel wire, institute are respectively arranged between the top of the oil cylinder and handle body, between the bottom of oil cylinder and base
State and seal assembly III and guide ring are housed between handle body and the outer wall of live post, have a ring shape above the oil inlet of the live post
Boss, the stainless steel sleeve for substituting live post overlay coating, the stainless steel are fixed with the live post outer wall above annular boss
Set forms interference fit with live post body by the method expanded with heat and contract with cold and is coated on the external diameter of live post body, the stainless steel sleeve
Lower end and the annular boss between use welded seal.
The back-moving spring being connected between described sealing cap assemblies and base is also equipped with described live post.
The seal assembly I includes " O " type sealing ring I and back-up ring I；The seal assembly II includes " O " type sealing ring II
With back-up ring II；The seal assembly III includes Y-shaped sealing ring and Sealing shield ring.
Dust ring is housed between the outer wall of the upper end of the handle body and the live post.
Pass through elastic cylinder pin connection between described top cover, live post and sealing cap assemblies.
Triple-use valve is housed on the handle valve body.
Pass through elastic cylinder pin connection, the tube wall of the stainless steel sleeve between described top cover, live post and sealing cap assemblies
Upper making has multiple elastic cylindrical pin mounting holes.
The beneficial effects of the utility model are：
1st, gapless is interference fitted between the utility model stainless steel sleeve and live post, can preferably be substituted of the prior art
Overlay coating, it is solid and reliable durable, and be not in stainless steel sleeve loosening, slip phenomenon in.
2nd, the high stainless steel sleeve of hardness can be selected, to improve the anti-performance of colliding with live post surface, for blast mining face,
Infringement of the gangue to be splashed caused by blowing out to live post surface can effectively be reduced.Service life improves more than 1 times, has obvious
Social benefit and economic benefit.
Brief description of the drawings
The utility model is further illustrated below according to drawings and examples.
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model live post and stainless steel sleeve connection diagram；
Fig. 3 is Fig. 2 A-A sectional views.
In figure, 1- top covers, 2- sealings cap assemblies, 3- live posts, 3-1- stainless steel sleeves, 3-2- live posts body, 3-3- convex annulars
Platform, 3-4- column pin holes, 4- handle valve bodies, 5- oil cylinders, 6- back-moving springs, 7- bases, 8- triple-use valves, 9- " O " types sealing ring I, 10-
Back-up ring I, 11- elastic cylindrical pins, 12- dust rings, 13- Y-shapeds sealing ring, 14- Sealing shield rings, 15- " O " types sealing ring II,
16- back-up rings II, 17- connections steel wire, 18- guide rings.
Embodiment
The durable hydraulic Support with Suspending Hollow Plug of a kind of anti-corrosion as shown in Figure 1 and Figure 2, it includes oil cylinder 5 and is located at
Live post 3 in oil cylinder 5, the top of live post 3 are provided with hand handle valve equipped with top cover 1 and sealing cap assemblies 2 between cylinder ports and live post 3
Body 4, the bottom of oil cylinder 5 are provided with base 7；Seal assembly I, the oil are housed between the sealing cap assemblies 2 and the inwall of live post 3
Seal assembly II and connection steel wire 17 are respectively arranged between the top of cylinder 5 and handle valve body 4, between the bottom of oil cylinder 5 and base 7,
Seal assembly III and guide ring 18 are housed between the handle valve body 4 and the outer wall of live post 3, had above the hydraulic fluid port of the live post 3
It is fixed with the outer wall of live post 3 above one circle annular boss 3-3, annular boss 3-3 for substituting the stainless of live post overlay coating
Steel bushing 3-1, the stainless steel sleeve 3-1 form interference fit with live post body 3-2 by the method expanded with heat and contract with cold and are coated on live post
On body 3-2 external diameter, welded seal is used between the lower end of the stainless steel sleeve 3-1 and the annular boss 3-3.
The back-moving spring 6 being connected between described sealing cap assemblies 2 and base 7 is also equipped with described live post 3.It is described
Seal assembly I includes " O " type sealing ring I 9 and back-up ring I 10；The seal assembly II includes " O " type sealing ring II 15 and back-up ring II
16；The seal assembly III includes Y-shaped sealing ring 13 and Sealing shield ring 14.The upper end of the handle valve body 4 and the live post 3
Outer wall between dust ring 12 is housed.As shown in Figure 1, Figure 3, bullet is passed through between described top cover 1, live post 3 and sealing cap assemblies 2
Property straight pin 11 connect, on the tube wall of the stainless steel sleeve 3-1 make have multiple elastic cylindrical pin mounting hole 3-4.The hand handle
Triple-use valve 8 is housed, triple-use valve 8 is as liquid-filling valve, check valve and feather valve on valve body 4.
The method expanded with heat and contract with cold is：Internal diameter is less than to the stainless steel thin-wall set of live post body external diameter 0.2-0.3 millimeters
It is fitted into heating and thermal insulation sleeve pipe to be put into together in stove and is heated to 550 DEG C -650 DEG C of temperature, is incubated 20-40 minutes；It is cold using thermal expansion
The principle of contracting, when stainless steel thin-wall set internal diameter is more than about 2 millimeters of live post body external diameter, by stainless steel thin-wall set and heating and thermal insulation set
Pipe takes out from stove together, live post body is quickly fitted into the stainless steel thin-wall set after heating, stainless steel thin-wall set after cooling
Live post is firmly fixed；Heating and thermal insulation sleeve pipe is steel pipe manufacturing, and its effect is that storage is heated in stove using thermal insulation casing
Heat, heating and thermal insulation is continued to the stainless steel thin-wall set taken out from stove, to ensure gap when assembling.Stainless steel thin-wall covers it
Between be using interference fit being coated on the external diameter of live post body tightly.The inner end of stainless steel sleeve is with live post body using welding
Method is sealed to prevent the seepage of liquid.
The utility model provides a kind of durable hydraulic Support with Suspending Hollow Plug of anti-corrosion, eliminates the plating on live post surface
The production process of layer, live post body surface is coated into the very good and higher hardness stainless steel sleeve of resistance to corrosion.Due to stainless
Steel has very strong antiseptic power, and stainless steel sleeve is coated on into live post surface, will greatly enhance the resistance to corrosion of pillar, improves branch
The service life of post.
Claims (7)
1. a kind of durable hydraulic Support with Suspending Hollow Plug of anti-corrosion, it includes oil cylinder（5）Be located at oil cylinder（5）Interior live post
（3）, live post（3）Top top cover is housed（1）With sealing cap assemblies（2）, cylinder ports and live post（3）Between be provided with handle valve body
（4）, oil cylinder（5）Bottom be provided with base（7）；The sealing cap assemblies（2）With live post（3）Inwall between seal assembly is housed
I, the oil cylinder（5）Top and handle valve body（4）Between, oil cylinder（5）Bottom and base（7）Between be respectively arranged with seal assembly
II and connection steel wire（17）, the handle valve body（4）With live post（3）Outer wall between seal assembly III and guide ring are housed
（18）,
It is characterized in that：The live post（3）Oil inlet above have a circle annular boss（3-3）, annular boss（3-3）Top
Live post（3）The stainless steel sleeve for substituting live post overlay coating is fixed with outer wall（3-1）, the stainless steel sleeve（3-1）Pass through
The method expanded with heat and contract with cold and live post body（3-2）Form interference fit and be coated on live post body（3-2）External diameter on, it is described stainless
Steel bushing（3-1）Lower end and the annular boss（3-3）Between use welded seal.
2. the durable hydraulic Support with Suspending Hollow Plug of anti-corrosion according to claim 1, it is characterised in that：Described work
Post（3）Inside it is also equipped with being connected to described sealing cap assemblies（2）And base（7）Between back-moving spring（6）.
3. the durable hydraulic Support with Suspending Hollow Plug of anti-corrosion according to claim 1, it is characterised in that：
The seal assembly I includes " O " type sealing ring I（9）With back-up ring I（10）；The seal assembly II includes " O " type sealing ring
Ⅱ（15）With back-up ring II（16）；The seal assembly III includes Y-shaped sealing ring（13）And Sealing shield ring（14）.
4. the durable hydraulic Support with Suspending Hollow Plug of anti-corrosion according to claim 1, it is characterised in that：The hand handle
Valve body（4）Upper end and the live post（3）Outer wall between dust ring is housed（12）.
5. the durable hydraulic Support with Suspending Hollow Plug of anti-corrosion according to claim 1, it is characterised in that：Described top
Lid（1）, live post（3）With sealing cap assemblies（2）Between pass through elastic cylindrical pin（11）Connection.
6. the durable hydraulic Support with Suspending Hollow Plug of anti-corrosion according to claim 1, it is characterised in that：The hand handle
Valve body（4）It is upper that triple-use valve is housed（8）.
7. the durable hydraulic Support with Suspending Hollow Plug of anti-corrosion according to claim 1, it is characterised in that：Described top
Lid（1）, live post（3）With sealing cap assemblies（2）Between pass through elastic cylindrical pin（11）Connection, the stainless steel sleeve（3-1）Pipe
Being made on wall has multiple elastic cylindrical pin mounting holes（3-4）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720758404.6U CN207033474U (en) | 2017-06-27 | 2017-06-27 | The durable hydraulic Support with Suspending Hollow Plug of anti-corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720758404.6U CN207033474U (en) | 2017-06-27 | 2017-06-27 | The durable hydraulic Support with Suspending Hollow Plug of anti-corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207033474U true CN207033474U (en) | 2018-02-23 |
Family
ID=61469256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720758404.6U Expired - Fee Related CN207033474U (en) | 2017-06-27 | 2017-06-27 | The durable hydraulic Support with Suspending Hollow Plug of anti-corrosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207033474U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369946A (en) * | 2019-06-24 | 2019-10-25 | 王二刚 | A kind of movable post restorative procedure of hydraulic prop |
| CN110552726A (en) * | 2019-08-21 | 2019-12-10 | 徐州天能矿山机械有限责任公司 | Mining single hydraulic prop fixing equipment |
-
2017
- 2017-06-27 CN CN201720758404.6U patent/CN207033474U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369946A (en) * | 2019-06-24 | 2019-10-25 | 王二刚 | A kind of movable post restorative procedure of hydraulic prop |
| CN110369946B (en) * | 2019-06-24 | 2021-04-06 | 王二刚 | Movable column repairing method for single hydraulic support column |
| CN110552726A (en) * | 2019-08-21 | 2019-12-10 | 徐州天能矿山机械有限责任公司 | Mining single hydraulic prop fixing equipment |
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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: 20180223 Termination date: 20210627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |