CN102536285B - Bottom lifting mechanism for hydraulic bracket of thin coal bed - Google Patents
Bottom lifting mechanism for hydraulic bracket of thin coal bed Download PDFInfo
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- CN102536285B CN102536285B CN201010580939.1A CN201010580939A CN102536285B CN 102536285 B CN102536285 B CN 102536285B CN 201010580939 A CN201010580939 A CN 201010580939A CN 102536285 B CN102536285 B CN 102536285B
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- connecting rod
- lower link
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- gusset
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Abstract
The invention relates to a bottom lifting mechanism for a hydraulic bracket of a thin coal bed. The bottom lifting mechanism comprises a first upper connecting rod, a second upper connecting rod, a first lower connecting rod, a second lower connecting rod, a rib plate and a bottom lifting jack; the upper ends of the first upper connecting rod and the second upper connecting rod are hinged through a pin shaft; the lower end of the first upper connecting rod is hinged with the upper end of the first lower connecting rod; the lower end of the second upper connecting rod is hinged with the upper end of the second lower connecting rod; the position of a hinging shaft of the first upper connecting rod and the first lower connecting rod is hinged with one end of the bottom lifting jack; the other end of the bottom lifting jack is hinged on an ear plate of a base; the position of a hinging shaft of the second upper connecting rod and the second lower connecting rod is hinged with one end of another bottom lifting jack; and the other end of the another bottom lifting jack is hinged on the ear plate of the base. According to the bottom lifting mechanism for the hydraulic bracket of the thin coal bed, the bottom lifting mechanism can be reasonably arranged in a limited space of the base as much as possible so that the space of the bracket for the thin coal bed is enlarged as much as possible; a bottom lifting function can be better realized; and the problem that the thin coal bed cannot be used for lifting a bottom is avoided.
Description
Technical field
The present invention relates to girdle down-hole fully-mechanized coalface hydraulic support, specifically a kind of bottom raising mechanism for hydraulic support for low coal seam.
Background technology
In short supply along with the energy, the quickening day by day of coal in China exploitation paces, increasing mine is faced with resource exhaustion problem, start at present girdle to exploit, corresponding occurred a kind of to girdle can screen exploitation Novel rack type-hydraulic support for low coal seam, this support is comprised of back timber, caving shield, base, column, connecting rod, balance jack etc., but easily there is the soft phenomenon of base plate in girdle, because base is thinner, limited space, the generally bottom raising mechanism of use cannot be installed, thereby make the problem of moving difficulty.
Summary of the invention
The object of the present invention is to provide a kind of bottom raising mechanism for hydraulic support for low coal seam, described this bottom raising mechanism will solve scaffold mechanism common in prior art can not be for the technical problem of hydraulic support for low coal seam scaffold.
The object of the invention is to be achieved through the following technical solutions: it comprises connecting rod on first, connecting rod on second, the first lower link, the second lower link, gusset and lift end jack, on first, on connecting rod and second, small end is hinged by bearing pin, on first, the lower end of connecting rod and the first lower link upper end are hinged, on second, the lower end of connecting rod and the second lower link upper end are hinged, the first lower link and the second lower link are articulated with on gusset, connecting rod on first, connecting rod on second, the first lower link and, the structure that the second lower link and gusset form is located at the crotch top of hydraulic support foundation, this structure is positioned at along the plane of base width, and the axial bisector plane with crotch is symmetrical arranged, on first, on connecting rod and second, the jointed shaft of connecting rod is located on base, on first, the jointed shaft place of connecting rod and the first lower link is hinged with the one end of lifting end jack, this other end of lifting end jack is articulated with on the otic placode of base, on second, the jointed shaft place of connecting rod and the second lower link is hinged with one end that another lifts end jack, this another lift end jack the other end be articulated with on the otic placode of base.
On first, connecting rod consists of two plate welding, on second, connecting rod consists of two plate welding, on second, small end is positioned at two plate inner sides of connecting rod on first, the first lower link comprises two plates, the upper end of two plates of the first lower link is positioned at two plate inner sides of connecting rod on first, the second lower link comprises two plates, the upper end of two plates of the second lower link is positioned at two plate outsides of connecting rod on second, and two plate lower ends of the first lower link and the second lower link are positioned at the outside of gusset.
On first, the middle part of connecting rod is welded with the casing consisting of steel plate between two plate, and on second, the middle part of connecting rod is welded with the casing consisting of steel plate between two plate.
It is inverted U-shaped that gusset is, and two vertical branches of this inverted U-shaped gusset match with the vertical guide of hydraulic support foundation crotch inner side.
Gusset middle part downside is provided with the projective structure that is circular arc.
The present invention compares with prior art, and its effect is actively with obvious.This is for bottom raising mechanism connecting rod on being arranged with by first above base crotch of hydraulic support for low coal seam, connecting rod on second, the first lower link, the mechanism that the second lower link and gusset form, these mechanism two ends are arranged with respectively lifts end jack and another and lifts end jack, by two effects of lifting end jack, the first lower link and the second hinged gusset in lower link lower end are moved up and down, the end, is lifted in realization, this bottom raising mechanism, can be as far as possible in the limited space of base, reasonably arrange bottom raising mechanism, girdle is expanded with the space of support as far as possible, and can realize better and lift end function, avoid girdle can not lift the problem at the end.On first, on connecting rod, second, connecting rod, the first lower link and the second lower link form by two plate welding, and on second, small end is positioned at two plate inner sides of connecting rod on first, the upper end of two plates of the first lower link is positioned at two plate inner sides of connecting rod on first, the upper end of two plates of the second lower link is positioned at two plate outsides of connecting rod on second, form like this interlaced arrangement structure, improve the supporting capacity of this structure.On first, the middle part of connecting rod is welded with the casing consisting of steel plate between two plate, on second, the middle part of connecting rod is welded with the casing consisting of steel plate between two plate, by the supporting capacity of connecting rod on connecting rod and second in the body structure raising first at middle part.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention applies in hydraulic support for low coal seam base.
Fig. 2 is the top view that the present invention is applied to hydraulic support for low coal seam base.
Fig. 3 is by structural representation that on connecting rod, second on first, connecting rod, the first lower link, the second lower link and gusset form in the present invention.
Fig. 4 is Fig. 3 top view.
Fig. 5 is Fig. 3 left view.
The specific embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention is described in further detail.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4 and Fig. 5, in the present embodiment, it comprises connecting rod 1 on first, on second, connecting rod 2, the first lower link 3, the second lower link 4, gusset 5 and lift end jack, on first, on connecting rod 1 and second, connecting rod 2 upper ends are hinged by bearing pin, on first, the lower end of connecting rod 1 and the first lower link 3 upper ends are hinged, on second, the lower end of connecting rod 2 and the second lower link 4 upper ends are hinged, the first lower link 3 and the second lower link 4 are articulated with on gusset 5, on first, connecting rod 1, on second, connecting rod 2, the first lower link 3 Hes, the structure that the second lower link 4 and gusset 5 form is located at the crotch top of hydraulic support foundation 7, this structure is positioned at along the plane of base width, and the axial bisector plane with crotch is symmetrical arranged, on first, on connecting rod 1 and second, the jointed shaft of connecting rod 2 is located on base 7, on first, the jointed shaft place of connecting rod 1 and the first lower link 3 is hinged with the one end of lifting end jack 6, this other end of lifting end jack 6 is articulated with on the otic placode of base 7, on second, the jointed shaft place of connecting rod 2 and the second lower link 4 is hinged with one end that another lifts end jack 61, this another lift end jack 61 the other end be articulated with on the otic placode of base 7.On first, connecting rod 1 consists of two plate welding, on second, connecting rod 2 consists of two plate welding, on second, connecting rod 2 upper ends are positioned at two plate inner sides of connecting rod 1 on first, the first lower link 3 comprises two plates, the upper end of two plates of the first lower link 3 is positioned at two plate inner sides of connecting rod 1 on first, the second lower link 4 comprises two plates, the upper end of two plates of the second lower link 4 is positioned at two plate outsides of connecting rod 2 on second, two plate lower ends of the first lower link 3 and the second lower link 4 are positioned at the outside of gusset 5, form like this cross structure, can improve the supporting capacity of this structure.Due to connecting rod 2 on connecting rod on first 1, second, the first lower link 3 and, the structure that forms of the second lower link 4 and gusset 5 is symmetrical arranged with the axial bisector plane of crotch, therefore, under two effects of lifting end jack, gusset 5 pumps, realization is lifted at the end.
On first, the middle part of connecting rod 1 is welded with the casing 11 consisting of steel plate between two plate, on second, the middle part of connecting rod 2 is welded with the casing 21 consisting of steel plate between two plate, the casing forming by Plate Welding is connected two plates of connecting rod on first and connecting rod on second, can improve its supporting capacity.
Gusset 5 is inverted U-shaped, and two vertical branches of this inverted U-shaped gusset 5 match with the vertical guide 71 of hydraulic support foundation 7 crotch inner sides, by this vertical guide, gusset are realized to guiding, position-limiting action.
Gusset 5 middle part downsides are provided with the projective structure that is circular arc, have increased while lifting the end itself and the supporting capacity that contacts of push rod (base plate).
The present invention reasonably arranges bottom raising mechanism in the limited space of base, girdle is expanded with the space of support as far as possible, and can realize better and lift end function, avoids girdle can not lift the problem at the end.
Claims (3)
1. the bottom raising mechanism for hydraulic support for low coal seam, it is characterized in that: it comprises connecting rod on first, connecting rod on second, the first lower link, the second lower link, gusset and lift end jack, on first, on connecting rod and second, small end is hinged by bearing pin, on first, the lower end of connecting rod and the first lower link upper end are hinged, on second, the lower end of connecting rod and the second lower link upper end are hinged, the first lower link and the second lower link are articulated with on gusset, connecting rod on first, connecting rod on second, the first lower link, the structure that the second lower link and gusset form is located at the crotch top of hydraulic support foundation, this structure is positioned at along the plane of base width, and the axial bisector plane with crotch is symmetrical arranged, on first, on connecting rod and second, the jointed shaft of connecting rod is located on base, on first, the jointed shaft place of connecting rod and the first lower link is hinged with the one end of lifting end jack, this other end of lifting end jack is articulated with on the otic placode of base, on second, the jointed shaft place of connecting rod and the second lower link is hinged with one end that another lifts end jack, this another lift end jack the other end be articulated with on the otic placode of base, on first, connecting rod consists of two plate welding, on second, connecting rod consists of two plate welding, on second, small end is positioned at two plate inner sides of connecting rod on first, the first lower link comprises two plates, the upper end of two plates of the first lower link is positioned at two plate inner sides of connecting rod on first, the second lower link comprises two plates, the upper end of two plates of the second lower link is positioned at two plate outsides of connecting rod on second, and two plate lower ends of the first lower link and the second lower link are positioned at the outside of gusset, it is inverted U-shaped that gusset is, and two vertical branches of this inverted U-shaped gusset match with the vertical guide of hydraulic support foundation crotch inner side.
2. the bottom raising mechanism for hydraulic support for low coal seam as claimed in claim 1, it is characterized in that: on first, the middle part of connecting rod is welded with the casing consisting of steel plate between two plate, on second, the middle part of connecting rod is welded with the casing consisting of steel plate between two plate.
3. the bottom raising mechanism for hydraulic support for low coal seam as claimed in claim 1, is characterized in that: gusset middle part downside is provided with the projective structure that is circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010580939.1A CN102536285B (en) | 2010-12-09 | 2010-12-09 | Bottom lifting mechanism for hydraulic bracket of thin coal bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010580939.1A CN102536285B (en) | 2010-12-09 | 2010-12-09 | Bottom lifting mechanism for hydraulic bracket of thin coal bed |
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| CN102536285A CN102536285A (en) | 2012-07-04 |
| CN102536285B true CN102536285B (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010580939.1A Active CN102536285B (en) | 2010-12-09 | 2010-12-09 | Bottom lifting mechanism for hydraulic bracket of thin coal bed |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102943679B (en) * | 2012-11-01 | 2015-06-03 | 中煤北京煤矿机械有限责任公司 | Hydraulic bracket and outer bottom adjusting mechanism of hydraulic bracket |
| CN103208888A (en) * | 2013-04-11 | 2013-07-17 | 广东明阳风电产业集团有限公司 | Detection and maintenance method for self-aligning roller bearing of spindle of wind driven generator and jacking tool |
| CN104196552A (en) * | 2014-07-16 | 2014-12-10 | 三一重型装备有限公司 | Bottom lifting device and hydraulic support |
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| US5190414A (en) * | 1991-04-03 | 1993-03-02 | Strebtechnik Bochum Gmbh & Co. | Walking prop for mine tunnels |
| DE4209515C1 (en) * | 1992-03-24 | 1993-08-12 | Bochumer Eisenhuette Heintzmann Gmbh & Co Kg, 4630 Bochum, De | Walking walling-frame for mine gallery - has walking frame mounting with bridge over piston rod supporting lifting ram for floor skids |
| CN101526005A (en) * | 2009-04-09 | 2009-09-09 | 山东科技大学 | Skid shoe type bottom raising mechanism of hydraulic support |
| CN201381869Y (en) * | 2009-03-31 | 2010-01-13 | 郑州煤机综机设备有限公司 | Bottom lifting mechanism of hydraulic support |
| CN201546744U (en) * | 2009-12-11 | 2010-08-11 | 兖州煤业股份有限公司 | Bottom lifting device of hydraulic bracket of thin coal seam |
| CN201554484U (en) * | 2009-10-27 | 2010-08-18 | 三一重型装备有限公司 | Hydraulic support and bottom lifting device thereof |
| CN201924949U (en) * | 2010-12-09 | 2011-08-10 | 郑州四维机电设备制造有限公司 | Bottom lifting mechanism for hydraulic support of thin coal seam |
-
2010
- 2010-12-09 CN CN201010580939.1A patent/CN102536285B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5190414A (en) * | 1991-04-03 | 1993-03-02 | Strebtechnik Bochum Gmbh & Co. | Walking prop for mine tunnels |
| DE4209515C1 (en) * | 1992-03-24 | 1993-08-12 | Bochumer Eisenhuette Heintzmann Gmbh & Co Kg, 4630 Bochum, De | Walking walling-frame for mine gallery - has walking frame mounting with bridge over piston rod supporting lifting ram for floor skids |
| CN201381869Y (en) * | 2009-03-31 | 2010-01-13 | 郑州煤机综机设备有限公司 | Bottom lifting mechanism of hydraulic support |
| CN101526005A (en) * | 2009-04-09 | 2009-09-09 | 山东科技大学 | Skid shoe type bottom raising mechanism of hydraulic support |
| CN201554484U (en) * | 2009-10-27 | 2010-08-18 | 三一重型装备有限公司 | Hydraulic support and bottom lifting device thereof |
| CN201546744U (en) * | 2009-12-11 | 2010-08-11 | 兖州煤业股份有限公司 | Bottom lifting device of hydraulic bracket of thin coal seam |
| CN201924949U (en) * | 2010-12-09 | 2011-08-10 | 郑州四维机电设备制造有限公司 | Bottom lifting mechanism for hydraulic support of thin coal seam |
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| Title |
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| ZY4200_17_38_G_液压支架抬底装置损坏原因分析及改造;孔淑敏;《今日科苑》;20090708(第13期);第148页 * |
| 孔淑敏.ZY4200_17_38_G_液压支架抬底装置损坏原因分析及改造.《今日科苑》.2009,(第13期),第148页. |
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Owner name: CATERPILLAR (ZHENGZHOU) CO., LTD. Free format text: FORMER NAME: ZHENGZHOU SIWEI ELECTROMECHANICAL EQUIPMENT MANUFACTURING CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: Wu town Xingyang city Henan province 450103 Zhengzhou city wide road Patentee after: Caterpillar (Zhengzhou) Co., Ltd. Address before: 450001 No. 7 shuttle Road, hi tech Industrial Development Zone, Henan, Zhengzhou Patentee before: Zhengzhou Siwei Electromechanical Equipment Manufacturing Co., Ltd. |