CN203547765U - Hydraulic support stand column for coal mine - Google Patents
Hydraulic support stand column for coal mine Download PDFInfo
- Publication number
- CN203547765U CN203547765U CN201320547623.1U CN201320547623U CN203547765U CN 203547765 U CN203547765 U CN 203547765U CN 201320547623 U CN201320547623 U CN 201320547623U CN 203547765 U CN203547765 U CN 203547765U
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- CN
- China
- Prior art keywords
- fairlead
- extension bar
- middle cylinder
- cylinder body
- stand column
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- Expired - Fee Related
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Abstract
The utility model discloses a hydraulic support stand column for coal mine, in particular relates to a hydraulic support stand column for coal mine, which is modified by a double-telescopic stand column and changes the bottom valve in the double-telescopic stand column into a plug; a small column is changed to be an extension bar, hinge pin holes and clamping slots are uniformly distributed in the extension bar, and a small guide sleeve is changed to be corresponding guide sleeve. The hydraulic support stand column for coal mine further comprises a semi-ring, a hinge pin and a lantern ring, wherein the lantern ring is in threaded connection with the corresponding guide sleeve; hinge pin holes corresponding to the hinge pin holes in the extension bar are formed in the lantern ring and the corresponding guide sleeve; the hinge pin penetrates through the corresponding hinge pin hole in the lantern ring, the hinge pin hole in the corresponding guide sleeve and the hinge pin hole in the extension bar, for fixing the extension height of the extension bar; the semi-ring is clamped in the clamping slot of the extension bar and positioned in the lantern ring; the double-telescopic stand column is changed to be the extension bar stand column, the application range of the stand column is expanded, the retaining and protecting height of the support is enlarged, more benefit is provided for the maintenance of the support, and the cost is saved.
Description
Technical field
The utility model relates to a kind of column, refers in particular to for coal-mine hydraulic support column.
Background technology
Column supports between hydraulic support foundation and back timber or caving shield, transmits directly or indirectly the hydraulic cylinder of support force to top board, is a kind of requisite parts on coal-mine hydraulic support, and desired strength is enough, reliable operation, long service life.The column using on coal-mine hydraulic support is at present hydraulic pressure list telescopic column, Hydraulic Double telescopic column, mechanical extension bar prop.
Single telescopic column is simple in structure, adjustment is highly convenient.The mechanical extension bar pillar construction of tradition is fairly simple, when the bearing height of single telescopic column support can not meet requiring of back production height, adjustable by extension bar, and makes up the deficiency of single telescopic column stroke.Double-telescopic upright post complex structure, the extension elongation of upper post alive is constant when in Coal Seam Thickness Change, little or top board settling rate is unhappy, it on, the extension elongation of work post can regulate automatically, than mechanical extension bar prop, facilitates manyly.After double-telescopic upright post length service time, easily there is sealing wear, the aging and cylinder barrel problems such as cylinder that rise, cause column not use, need to keep in repair or scrap, the expense of maintenance is very high, therefore for cost-saving a kind of double double-telescopic upright post and the mechanical extension bar prop advantage developed is in one, there is the dual-purpose column of interchangeability or be necessary by the column that double-telescopic upright post is transformed into mechanical extension bar.
Summary of the invention
The purpose of this utility model is to overcome weak point of the prior art, a kind of column that is applicable to hydraulic support is provided, this column solved double-telescopic upright post because of service time long, caused maintenance and the problem of scrapping, make double-telescopic upright post be converted to extension bar column, expanded the scope of application and the application life that has extended column of column.
The technical problems to be solved in the utility model is realized by following scheme:
A coal-mine hydraulic support column, this column is formed by double-telescopic upright post transformation, at the bottom of described double-telescopic upright post comprises outer cylinder body, middle cylinder body, middle cylinder bottom, large fairlead, little fairlead, paxilla, pillar, bottom valve and four groups of black boies, in outer cylinder body, cover has middle cylinder, middle cylinder is the welding body of middle cylinder bottom and middle cylinder body, in middle cylinder, cover has paxilla, paxilla is the welding body at the bottom of pillar and pillar, large fairlead is contained in outer cylinder body cylinder mouth place and adopts engage thread to connect, middle cylinder bottom is provided with black box and coordinates with outer cylinder body, large fairlead is provided with black box and coordinates with middle cylinder body, at the bottom of paxilla with between middle cylinder body, a black box is installed coordinates with middle cylinder body, little fairlead is set in the cylinder mouth end of middle cylinder body and adopts engage thread to connect, between pillar and little fairlead, a black box being installed coordinates with pillar, middle cylinder bottom central shaft hole is provided with bottom valve, it is characterized in that: described bottom valve is replaced by stifled, described paxilla is replaced by extension bar, is evenly equipped with pin shaft hole and draw-in groove on extension bar, described little fairlead is replaced by corresponding fairlead, also comprise: semi-ring, bearing pin and the collar, described corresponding fairlead is threaded with middle cylinder body, the collar connects with corresponding fairlead bearing pin, the collar with on corresponding fairlead, be equipped with the pin shaft hole corresponding with extension bar upper pin hole, described bearing pin through the pin shaft hole on the corresponding collar and the pin shaft hole on corresponding fairlead and the pin shaft hole on extension bar fixedly extension bar stretch out highly, described semi-ring is stuck in the draw-in groove of extension bar, is positioned at the collar.
Described blocks up as blocking up that band seals.
Described stifled, extension bar, semi-ring, the collar and corresponding fairlead are coaxial.
Described corresponding fairlead is provided with female thread structure.
Beneficial effect:
1, double-telescopic upright post is converted to extension bar column;
2, expand the scope of application of column, expanded the supporting height of support;
3, be more conducive to the maintenance of support, cost-saving.
Accompanying drawing explanation
Fig. 1 is a kind of coal-mine hydraulic support double-telescopic upright post structural representation;
Fig. 2 is a kind of coal-mine hydraulic support pillar construction schematic diagram;
1, outer cylinder body, 2, middle cylinder body, 3, pillar, 4, middle cylinder bottom, 5, at the bottom of pillar, 6, little fairlead, 7, bottom valve, 8, stifled, 9, bearing pin, 10, semi-ring, 11, the collar, 12, pin shaft hole, 13, draw-in groove, 14, extension bar, 15, corresponding fairlead, 16, large fairlead.
The specific embodiment
By reference to the accompanying drawings, the utility model is described further:
As Fig. 1, shown in Fig. 2, described a kind of coal-mine hydraulic support column is formed by double-telescopic upright post transformation, described double-telescopic upright post comprises outer cylinder body 1, middle cylinder body 2, middle cylinder bottom 4, large fairlead 16, at the bottom of pillar 5, little fairlead 6, pillar 3, bottom valve 7 and four groups of black boies, in outer cylinder body 1, cover has the welding body of middle cylinder body 2 and middle cylinder bottom 4, in middle cylinder body 2, cover has at the bottom of pillar 3 and pillar 5 welding body, between the welding body of middle cylinder body 2 and middle cylinder bottom 4 and the sealed end of outer cylinder body 1 and openend, two black boies being installed coordinates with the welding body of middle cylinder body 2 and middle cylinder bottom 4, one black box is installed between the sealed end of 5 welding body and middle cylinder body 2 at the bottom of pillar 3 and pillar 5 to be coordinated with at the bottom of pillar, little fairlead 6 is socketed on the openend of middle cylinder body 2, between pillar 3 and little fairlead 6, a black box being installed coordinates with pillar 3, middle cylinder bottom 4 central shaft holes are provided with bottom valve 7, we have carried out technological transformation to above-mentioned double-telescopic upright post: described bottom valve 7 is replaced by stifled 8, stifled 8 blocking up for band sealing, for cutting off the hydraulic system of outer cylinder body 1, 5 welding body at the bottom of pillar 3 and pillar is replaced by extension bar 14, on extension bar 14, is evenly equipped with pin shaft hole 12 and draw-in groove 13, little fairlead 6 is replaced by corresponding fairlead 15, this column also comprises: semi-ring 10, bearing pin 9 and the collar 11, on request by extension bar 14 stretch out Height Adjustment good after, semi-ring 10 is stuck in the draw-in groove 13 of extension bar 14, then the collar 11 is threaded with corresponding fairlead 15, semi-ring 10 is enclosed within the collar 11, protection semi-ring 10 drops out, on the collar 11 and corresponding fairlead 15, be equipped with the pin shaft hole corresponding with extension bar 14 upper pin holes 12, then by bearing pin 9 through the pin shaft hole on the corresponding collar 11 and the pin shaft hole on corresponding fairlead 15 and the pin shaft hole on extension bar 14 fixedly extension bar 14 stretch out highly.Above-mentioned stifled 8, extension bar 14, semi-ring 10, the collar 11 and corresponding fairlead 15 are coaxial; Corresponding fairlead 15 is provided with external thread structure.
Claims (4)
1. a coal-mine hydraulic support column, this column is formed by double-telescopic upright post transformation, at the bottom of described double-telescopic upright post comprises outer cylinder body, middle cylinder body, middle cylinder bottom, large fairlead, little fairlead, paxilla, pillar, bottom valve and four groups of black boies, in outer cylinder body, cover has middle cylinder, middle cylinder is the welding body of middle cylinder bottom and middle cylinder body, in middle cylinder, cover has paxilla, paxilla is the welding body at the bottom of pillar and pillar, large fairlead is contained in outer cylinder body cylinder mouth place and adopts engage thread to connect, middle cylinder bottom is provided with black box and coordinates with outer cylinder body, large fairlead is provided with black box and coordinates with middle cylinder body, at the bottom of paxilla with between middle cylinder body, a black box is installed coordinates with middle cylinder body, little fairlead is set in the cylinder mouth end of middle cylinder body and adopts engage thread to connect, between pillar and little fairlead, a black box being installed coordinates with pillar, middle cylinder bottom central shaft hole is provided with bottom valve, it is characterized in that: described bottom valve is replaced by stifled, described paxilla is replaced by extension bar, is evenly equipped with pin shaft hole and draw-in groove on extension bar, described little fairlead is replaced by corresponding fairlead, also comprise: semi-ring, bearing pin and the collar, described corresponding fairlead is threaded with middle cylinder body, the collar connects with corresponding fairlead bearing pin, the collar with on corresponding fairlead, be equipped with the pin shaft hole corresponding with extension bar upper pin hole, described bearing pin through the pin shaft hole on the corresponding collar and the pin shaft hole on corresponding fairlead and the pin shaft hole on extension bar fixedly extension bar stretch out highly, described semi-ring is stuck in the draw-in groove of extension bar, is positioned at the collar.
2. a kind of coal-mine hydraulic support column according to claim 1, is characterized in that: described blocks up as blocking up that band seals.
3. a kind of coal-mine hydraulic support column according to claim 1, is characterized in that: described stifled, extension bar, semi-ring, the collar and corresponding fairlead are coaxial.
4. according to a kind of coal-mine hydraulic support column described in claim 1 or 3, it is characterized in that: described corresponding fairlead is provided with female thread structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320547623.1U CN203547765U (en) | 2013-09-04 | 2013-09-04 | Hydraulic support stand column for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320547623.1U CN203547765U (en) | 2013-09-04 | 2013-09-04 | Hydraulic support stand column for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547765U true CN203547765U (en) | 2014-04-16 |
Family
ID=50465894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320547623.1U Expired - Fee Related CN203547765U (en) | 2013-09-04 | 2013-09-04 | Hydraulic support stand column for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203547765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047622A (en) * | 2014-06-09 | 2014-09-17 | 大连宏远气动液压船舶辅机有限公司 | Double-telescoping stand column of hydraulic support |
-
2013
- 2013-09-04 CN CN201320547623.1U patent/CN203547765U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047622A (en) * | 2014-06-09 | 2014-09-17 | 大连宏远气动液压船舶辅机有限公司 | Double-telescoping stand column of hydraulic support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20140904 |
|
| EXPY | Termination of patent right or utility model |