CN106065780A - A kind of hydraulic support column, jack and preparation method thereof - Google Patents
A kind of hydraulic support column, jack and preparation method thereof Download PDFInfo
- Publication number
- CN106065780A CN106065780A CN201610654288.3A CN201610654288A CN106065780A CN 106065780 A CN106065780 A CN 106065780A CN 201610654288 A CN201610654288 A CN 201610654288A CN 106065780 A CN106065780 A CN 106065780A
- Authority
- CN
- China
- Prior art keywords
- jack
- cylinder body
- piston
- column
- stainless steel
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
Abstract
The present invention relates to new type hydraulic bearer column, jack, the piston including cylinder body, being arranged in cylinder body and the piston rod being fixedly mounted on piston (or the middle cylinder in column), the inner peripheral surface of cylinder body is compounded with stainless steel casement, bushing inwall and piston contact.By changing the upper liquid injection hole position of crude oil cylinder, make stainless steel sleeve be not required to liquid injection hole and weld, and directly weld with cylinder body and reach sealing purpose.Eliminate liquid injection hole edge stainless steel sleeve to be difficult to weld with inside wall of cylinder mother metal narrow space, easily cause formation stainless steel sleeve between high-pressure emulsion entrance rustless steel inner sleeve and the inside wall of cylinder and play the shortcoming that bulge is scrapped by piston tear.Additionally, be also combined one layer of stainless steel layer by the way of undergauge with mould on the outer wall of piston rod.When column, jack use, stainless steel casement will not be corroded by aqueous emulsion, thus avoids the occurrence of the phenomenon of corrosion, cavitation erosion, improves column, the resistance to corrosion of jack and life-span, it is ensured that hydraulic support normally works.
Description
Technical field
The present invention relates to comprehensive mechanical coal mining equipment, particularly relate to a kind of standing for down-hole comprehensive mining hydraulic bracket
Post, jack.
Background technology
Hydraulic support is the important component part of fully-mechanized mining equipment.In coal mining production process, in order to prevent roof collapse, dimension
Hold certain work space, it is ensured that the installation of workman's person is smoothed out with every operation, it is necessary to top board is carried out supporting, hydraulic pressure
The supporting performance of support is good, and intensity is high, and advancing velocity is fast, and safety is high, is therefore commonly used for top board is carried out supporting, and hydraulic pressure props up
Frame is using highly pressurised liquid as power, the supporting being made up of Hydraulic Elements and hardware and the equipment of controlroof, it is possible to real
Now support, cut top, move the operation such as frame and moving conveyor.The power of the supporting of hydraulic support is column, other of hydraulic support
Action is completed by all kinds of jack.The material of the cylinder body of column and all kinds of jack is 27SiMn, and its stainless property is poor, cylinder
Often there is corrosion, cavitation erosion in the inwall of body, has a strong impact on the serviceability of hydraulic support.
Summary of the invention
(1) solve the technical problem that
For the deficiencies in the prior art, the invention provides a kind of column, jack, overcome the deficiencies in the prior art,
Be prevented from column, there is corrosion, cavitation erosion in jack casing wall, it is ensured that hydraulic support normally works.
(2) technical scheme
For realizing object above, the present invention is achieved by the following technical programs:
A kind of column, jack, the piston including cylinder body, being arranged in cylinder body and the piston being fixedly mounted on piston
Bar, is provided with inner sleeve, the inwall of described inner sleeve and piston contact on the inner peripheral surface of described cylinder body.
Described inner sleeve is stainless steel sleeve.
Described inner sleeve is fixed on the inner peripheral surface of cylinder body by rolling, by by the lower liquid injection hole position of jack cylinder body
By changing on cylinder bottom on cylinder barrel, the left end that just can realize described inner sleeve directly welds with cylinder body and cylinder bottom, improve weldquality and
Stainless steel sleeve weld strength.
The sealing surface position of prolongation piston, to exceeding liquid injection hole position, makes the weld seam position that inner sleeve right-hand member directly welds with cylinder body
Put after moving on to liquid injection hole, fluid injection borehole jack in cancellation, reach to reduce the purpose of welding accident point；Again fairlead size is changed
Change with fit structure.
(3) beneficial effect
Embodiments provide a kind of column, jack.Possesses beneficial effect: by the inner periphery at cylinder body
On face and piston rod outer round surface fixedly mount stainless steel casement, when jack uses, bushing will not be by aqueous emulsifying
Corrosion, thus avoid the occurrence of the phenomenon of corrosion, cavitation erosion, it is ensured that hydraulic support normally works, and column, very heavy can be extended
Push up service life.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is column of the present invention, the front sectional view of jack cylinder body；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Fig. 3 is the enlarged drawing in Fig. 1 at B.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, to the technology in the embodiment of the present invention
Scheme is clearly and completely described, it is clear that described embodiment is a part of embodiment of the present invention rather than whole
Embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise
The every other embodiment obtained, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, embodiment 1, column of the present invention, jack, the piston including cylinder body 1, being arranged in cylinder body 1 and solid
Dingan County is contained in the piston rod on piston, is installed with stainless steel casement on the inner peripheral surface and piston rod outer surface of cylinder body 1
2, the inwall of bushing 2 and piston contact.Bushing it is fixed on the inner peripheral surface of cylinder body 1 by rolling, shown in Fig. 2, bushing 2
Left end A be welded to connect with cylinder body and cylinder bottom, right-hand member B is welded to connect with cylinder body 1.The stainless steel sleeve that piston rod outer surface is combined is adopted
By the mode of mould undergauge, and compound stainless steel sleeve two ends on the piston rod welds with piston rod mother metal reaches sealing imitate
Really.By on the inner peripheral surface of cylinder body and at piston rod outer round surface fixed installation stainless steel casement, when column, jack make
Used time, bushing will not be corroded by aqueous emulsion, thus avoid the occurrence of the phenomenon of corrosion, cavitation erosion, it is ensured that hydraulic support is normal
Work, and column, jack two can be extended again to the service life of three times.
Embodiment 2 is column as the present invention, wherein the piston rod in embodiment 1 is replaced with middle cylinder.
It should be noted that in this article, the relational terms of such as first and second or the like is used merely to a reality
Body or operation separate with another entity or operating space, and deposit between not necessarily requiring or imply these entities or operating
Relation or order in any this reality.And, term " includes ", " comprising " or its any other variant are intended to
Comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Including process, method, article or the equipment of described key element there is also other identical element.
Above example only in order to technical scheme to be described, is not intended to limit；Although with reference to previous embodiment
The present invention is described in detail, it will be understood by those within the art that: it still can be to aforementioned each enforcement
Technical scheme described in example is modified, or wherein portion of techniques feature is carried out equivalent；And these amendment or
Replace, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. column, a jack, the piston including cylinder body, being arranged in cylinder body and the piston rod being fixedly mounted on piston,
It is characterized in that: on the inner peripheral surface of described cylinder body, be provided with inner sleeve, the inwall of described inner sleeve and piston contact.
2. column, jack as claimed in claim 1, it is characterised in that: described inner sleeve is stainless steel sleeve.
3. column, jack preparation method as claimed in claim 1 or 2, it is characterised in that: described inner sleeve is fixing by rolling
On the inner peripheral surface of cylinder body, by the lower liquid injection hole position of jack cylinder body is changed on cylinder bottom by cylinder barrel.
4. column, the preparation method of jack as claimed in claim 3, it is characterised in that: extend the sealing surface position of piston
To exceeding liquid injection hole position, after the position while welding making inner sleeve right-hand member directly weld with cylinder body moves on to upper liquid injection hole, fluid injection in cancellation
Borehole jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610654288.3A CN106065780A (en) | 2016-08-10 | 2016-08-10 | A kind of hydraulic support column, jack and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610654288.3A CN106065780A (en) | 2016-08-10 | 2016-08-10 | A kind of hydraulic support column, jack and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106065780A true CN106065780A (en) | 2016-11-02 |
Family
ID=57207359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610654288.3A Pending CN106065780A (en) | 2016-08-10 | 2016-08-10 | A kind of hydraulic support column, jack and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106065780A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140923A (en) * | 2011-04-12 | 2011-08-03 | 天地科技股份有限公司 | Guide ring overwelding seam large-cylinder bottom double-telescopic upright column |
| CN102168568A (en) * | 2011-02-27 | 2011-08-31 | 山东能源机械集团有限公司 | Novel hydraulic support upright post for surface preservative treatment and surface preservative treatment method thereof |
| CN202657900U (en) * | 2012-04-27 | 2013-01-09 | 淮南巨万实业有限责任公司 | Advancing jack |
| CN202755989U (en) * | 2012-07-19 | 2013-02-27 | 山东塔高矿业机械装备制造有限公司 | Stand column used for hydraulic support |
| CN203730020U (en) * | 2014-01-22 | 2014-07-23 | 淮南巨万实业有限责任公司 | Hydraulic support upright column and jack provided with stainless steel composite layer |
| CN203807048U (en) * | 2014-05-22 | 2014-09-03 | 邹城市辰星煤机制修有限公司 | Thrust jack used for hydraulic support of fully mechanized working face |
-
2016
- 2016-08-10 CN CN201610654288.3A patent/CN106065780A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168568A (en) * | 2011-02-27 | 2011-08-31 | 山东能源机械集团有限公司 | Novel hydraulic support upright post for surface preservative treatment and surface preservative treatment method thereof |
| CN102140923A (en) * | 2011-04-12 | 2011-08-03 | 天地科技股份有限公司 | Guide ring overwelding seam large-cylinder bottom double-telescopic upright column |
| CN202657900U (en) * | 2012-04-27 | 2013-01-09 | 淮南巨万实业有限责任公司 | Advancing jack |
| CN202755989U (en) * | 2012-07-19 | 2013-02-27 | 山东塔高矿业机械装备制造有限公司 | Stand column used for hydraulic support |
| CN203730020U (en) * | 2014-01-22 | 2014-07-23 | 淮南巨万实业有限责任公司 | Hydraulic support upright column and jack provided with stainless steel composite layer |
| CN203807048U (en) * | 2014-05-22 | 2014-09-03 | 邹城市辰星煤机制修有限公司 | Thrust jack used for hydraulic support of fully mechanized working face |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161102 |
|
| RJ01 | Rejection of invention patent application after publication |