CN108301853A - Column protective case - Google Patents
Column protective case Download PDFInfo
- Publication number
- CN108301853A CN108301853A CN201810175870.0A CN201810175870A CN108301853A CN 108301853 A CN108301853 A CN 108301853A CN 201810175870 A CN201810175870 A CN 201810175870A CN 108301853 A CN108301853 A CN 108301853A
- Authority
- CN
- China
- Prior art keywords
- column
- sheath
- earthen pipe
- cylinder bottom
- welded
- 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
- 230000001681 protective effect Effects 0.000 title claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Road Signs Or Road Markings (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses the earthen pipe and big cylinder bottom of a kind of column protective case, including column, earthen pipe includes the non-higher-pressure region of epicoele and cavity of resorption higher-pressure region, and sheath is equipped with close to the position of big cylinder bottom on earthen pipe, and sheath is equipped with limited block.It is structure as a whole with limited block on sheath or welding structure.Sheath is welded on big cylinder bottom or is welded on earthen pipe or is fastened on earthen pipe by pasting board.Higher-pressure region welding is avoided, the service life and intensity of column are influenced.
Description
Technical field
The present invention relates to a kind of coal-mine hydraulic support column more particularly to a kind of column protective cases.
Background technology
Hydraulic support in use, by the lifting of column, carrys out the supporting height of adjusting bracket.Column action process
In, certain angle itself can be swung, and column both ends are all the types of attachment by ball-joint, connected with stent structural members
It connects.Therefore, the limit form at column cylinder bottom, if can be limited in the centre of sphere of cylinder bottom, the external force that column is subject to is minimum, stress feelings
Condition is best.
Column is because of the particularity of its operating mode, and cavity pressure is much larger than epicoele operating pressure under all hydraulic bracket upright post.Generally
Situation, the sphere center position of column cylinder bottom must, to design position-limit mechanism on earthen pipe, need to be welded on earthen pipe on earthen pipe
Pipe fitting, this will cause earthen pipe base material to damage to a certain degree, cause the column region under high pressure effect, easy to produce tired
Labor is destroyed, and can generate crack as source using weld when serious even bursts.
As shown in Figure 1 to Figure 3, it is three kinds of limit methods in the prior art, currently, at more common column cylinder bottom
Limit method is that position-limit mechanism is designed on column cylinder bottom, additional designs column pressing plate, column limit.A small number of columns, in cylinder
Welded limiting block at pipe, column limit.It is specifically shown in Fig. 1, wherein by position-limit mechanism design on cylinder bottom, although easy to process,
But cylinder bottom stress is big, fragile；In Fig. 2 and Fig. 3 it is direct earthen pipe higher-pressure region carry out welding base material can be caused to damage, influence to stand
The service life and intensity of column.
Invention content
The object of the present invention is to provide a kind of column protective cases.
The purpose of the present invention is what is be achieved through the following technical solutions：
The column protective case of the present invention, includes the earthen pipe and big cylinder bottom of column, the earthen pipe include the non-higher-pressure region of epicoele and
Cavity of resorption higher-pressure region, is equipped with sheath on the earthen pipe close to the position of big cylinder bottom, and the sheath is equipped with limited block.
As seen from the above technical solution provided by the invention, column protective case provided in an embodiment of the present invention, vertical
Column cylinder bottom outer circle welds sheath, and then limited block is welded on sheath, avoids higher-pressure region welding, and influence column uses the longevity
Life and intensity.
Description of the drawings
Fig. 1 is cylinder bottom position-limit mechanism structural schematic diagram in the prior art.
Fig. 2 is the position-limit mechanism structural schematic diagram that limited block is welded on to earthen pipe (the non-cylinder bottom centre of sphere) in the prior art.
Fig. 3 is the position-limit mechanism structural schematic diagram that limited block is welded on to earthen pipe (the cylinder bottom centre of sphere) in the prior art.
Fig. 4 is the structural schematic diagram for the position-limit mechanism that limited block is welded on to column protective case in the embodiment of the present invention.
In figure：
1, big cylinder bottom, 2, earthen pipe, 3, position-limit mechanism, 4, limited block, 5, sheath.
Specific implementation mode
The embodiment of the present invention will be described in further detail below.What is be not described in detail in the embodiment of the present invention is interior
Appearance belongs to the prior art well known to professional and technical personnel in the field.
The column protective case of the present invention, preferable specific implementation mode are：
Earthen pipe including column and big cylinder bottom, the earthen pipe include the non-higher-pressure region of epicoele and cavity of resorption higher-pressure region, the earthen pipe
Upper to be equipped with sheath close to the position of big cylinder bottom, the sheath is equipped with limited block.
It is structure as a whole with limited block on the sheath or welding structure.
The sheath is welded on the big cylinder bottom or is welded on the earthen pipe or is fastened on by pasting board the earthen pipe
On.
If it is desired to realize that pillar construction is welded in a kind of higher-pressure region zero of hydraulic support, no matter from the structure design of column, also
It is processing and manufacturing, all will will be a no small challenge.
As shown in figure 4, the column protective case of the present invention, is adjusted the welding mechanism of earthen pipe position-limit mechanism, in column
Cylinder bottom outer circle welds sheath, and then limited block is welded on sheath.
Sheath welds on cylinder bottom, and limit ear mount is welded on sheath, avoids higher-pressure region welding.
Position-limit mechanism is fixed on earthen pipe outer circle specific position by being welded on sheath, by its position.The program can use limit
Position mechanism is replaced using other special-shaped blocks, and sheath can be used the structure that the uniform pasting board of shape is welded on earthen pipe and replace.The party
Case can also be replaced with sheath and the part that position-limit mechanism is integrally formed.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (3)
1. a kind of column protective case, includes the earthen pipe and big cylinder bottom of column, the earthen pipe includes that the non-higher-pressure region of epicoele and cavity of resorption are high
Pressure area, which is characterized in that be equipped with sheath close to the position of big cylinder bottom on the earthen pipe, the sheath is equipped with limited block.
2. column protective case according to claim 1, which is characterized in that be structure as a whole with limited block on the sheath or
Welding structure.
3. column protective case according to claim 2, which is characterized in that the sheath is welded on the big cylinder bottom or leads to
Pasting board is crossed to be welded on the earthen pipe or be fastened on the earthen pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810175870.0A CN108301853A (en) | 2018-03-02 | 2018-03-02 | Column protective case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810175870.0A CN108301853A (en) | 2018-03-02 | 2018-03-02 | Column protective case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108301853A true CN108301853A (en) | 2018-07-20 |
Family
ID=62849344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810175870.0A Pending CN108301853A (en) | 2018-03-02 | 2018-03-02 | Column protective case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108301853A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107328A (en) * | 2019-06-05 | 2019-08-09 | 中煤北京煤矿机械有限责任公司 | Slippage bracket rigidity hard tube sheath device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203271779U (en) * | 2013-05-23 | 2013-11-06 | 中煤北京煤矿机械有限责任公司 | Stand column hoop and stand column |
| WO2014008715A1 (en) * | 2012-07-09 | 2014-01-16 | 中国矿业大学 | Hinged-connection type suspended hydraulic stand column |
| CN103615271A (en) * | 2013-12-02 | 2014-03-05 | 中煤北京煤矿机械有限责任公司 | Protective device for stand column |
| CN207944970U (en) * | 2018-03-02 | 2018-10-09 | 中煤北京煤矿机械有限责任公司 | Column protective case |
-
2018
- 2018-03-02 CN CN201810175870.0A patent/CN108301853A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014008715A1 (en) * | 2012-07-09 | 2014-01-16 | 中国矿业大学 | Hinged-connection type suspended hydraulic stand column |
| CN203271779U (en) * | 2013-05-23 | 2013-11-06 | 中煤北京煤矿机械有限责任公司 | Stand column hoop and stand column |
| CN103615271A (en) * | 2013-12-02 | 2014-03-05 | 中煤北京煤矿机械有限责任公司 | Protective device for stand column |
| CN207944970U (en) * | 2018-03-02 | 2018-10-09 | 中煤北京煤矿机械有限责任公司 | Column protective case |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107328A (en) * | 2019-06-05 | 2019-08-09 | 中煤北京煤矿机械有限责任公司 | Slippage bracket rigidity hard tube sheath device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180720 |