CN109098745B - Anti-falling mechanism for circulating forward type forepoling - Google Patents
Anti-falling mechanism for circulating forward type forepoling Download PDFInfo
- Publication number
- CN109098745B CN109098745B CN201811176781.4A CN201811176781A CN109098745B CN 109098745 B CN109098745 B CN 109098745B CN 201811176781 A CN201811176781 A CN 201811176781A CN 109098745 B CN109098745 B CN 109098745B
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- supporting
- base
- plate
- supporting plate
- jack
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- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Classifications
-
- 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
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0418—Positioning devices and stabilizing means for the props
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- 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
- E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Road Signs Or Road Markings (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses an anti-falling mechanism for a circulating forward type forepoling, which comprises a base, wherein two sides of a horizontal bottom plate of the base are respectively provided with a supporting plate hinged with the horizontal bottom plate, a supporting jack is arranged between the supporting plate and a vertical plate of the base, two ends of the supporting jack are respectively hinged with the supporting plate and the vertical plate of the base, when a piston rod of the supporting jack extends out, the maximum downward swinging angle of the supporting plate is 5 degrees below the horizontal plane, when the piston rod of the supporting jack retracts, the maximum included angle between the supporting plate and the horizontal plane is 90 degrees, each supporting plate is provided with at least one longitudinal anti-sliding strip contacted with the ground, and the outer side of the vertical plate of the base is provided with a limiting. The hydraulic support lifting device is simple in structure and convenient to use, can better solve the problems of poor stability, easiness in tilting or falling and the like of the circulating forward type advance support hydraulic support, can effectively improve the safety of equipment, guarantees the personal safety of operators, and can realize the function of lifting the bottom of the support.
Description
Technical Field
The invention relates to the technical field of circulating forward type advance supports, in particular to an anti-falling mechanism for a circulating forward type advance support.
Background
The hydraulic support is a common supporting device in the fully mechanized mining mine. The existing stepping self-moving type advance support needs to move forwards once along with each stepping of a working face, and each support needs to be lifted at least once in the moving process so as to repeatedly support a top plate in a supporting area in sequence, so that the integrity of the top plate is greatly damaged. For a broken top plate, the supporting mode easily causes secondary loosening of surrounding rocks and damages the integrity of a roadway; meanwhile, when the distance of the advance support section is too long, the advancing speed of the stepping self-moving advance support hydraulic support is too slow, and the requirement of quick advancing of a working face cannot be met. The circulating forward type advance support hydraulic support which appears recently has the advantages of simple structure, light weight, convenient support moving and the like, effectively solves the problems that the integrity of a roadway roof is damaged and the like because the advancing self-moving advance support hydraulic support repeatedly supports the roadway roof, and is gradually popularized and applied. However, the existing circulating forward type advance support hydraulic support is not provided with an effective anti-falling mechanism, the support stability is poor, the problems of support tilting, support falling and the like are easy to occur in the using process, and the safety is poor.
Disclosure of Invention
In order to solve the problems, the invention provides an anti-falling mechanism for a circulating forward advance support, which adopts the following technical scheme:
the invention relates to an anti-falling mechanism for a circulating forward type forepoling, which comprises a base, wherein two sides of a horizontal bottom plate of the base are respectively provided with a supporting plate hinged with the horizontal bottom plate, a supporting jack is arranged between the supporting plate and a vertical plate of the base, two ends of the supporting jack are respectively hinged with the supporting plate and the vertical plate of the base, when a piston rod of the supporting jack extends out, the maximum downward swinging angle of the supporting plate is 5 degrees below the horizontal plane, when a piston rod of the supporting jack retracts, the maximum included angle between the supporting plate and the horizontal plane is 90 degrees, each supporting plate is provided with at least one longitudinal anti-sliding strip contacted with the ground, and the outer side of the vertical plate of the base is provided with.
The anti-falling mechanism for the circulating forward advance support provided by the invention has the advantages of simple structure and convenience in use, can better solve the problems of poor stability, easiness in tilting or falling of the circulating forward advance support hydraulic support and the like, can effectively improve the safety of equipment, and guarantees the personal safety of operators.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic front view of the present invention.
Detailed Description
As shown in fig. 1 and 2, the tilting prevention mechanism for the circulating forward type advance support comprises a base 1, wherein supporting plates 2 hinged with the horizontal bottom plate are respectively arranged on two sides of the horizontal bottom plate of the base 1, and a supporting jack 3 is arranged between the supporting plates 2 and a vertical plate of the base 1. Specifically, the connecting plate welded on the supporting plate 2 is hinged to the lug plate welded on the horizontal bottom plate of the base 1 through a pin shaft, the lug plates used for connecting and supporting the jack 3 are further welded on the supporting plate 2 and the vertical plate of the base 1 respectively, and the cylinder bottom and the piston rod of the supporting jack 3 are hinged to the lug plates through pin shafts. The supporting plate 2 swings around a hinge shaft of the supporting plate and the base 1 through extension or retraction of a piston rod of the supporting jack 3, when the piston rod of the supporting jack 3 extends out, the maximum downward swinging angle of the supporting plate 2 is 5 degrees below the horizontal plane, the supporting plate 2 can be ensured to be in tight contact with a roadway bottom plate, and the transverse stability of the support is improved; further, the lower surface of the supporting plate 2 is welded with at least one longitudinal anti-slip strip 4 which is in contact with the ground, so that the anti-falling effect is improved. When the piston rod of the supporting jack 3 retracts, the maximum included angle between the upward swing back of the supporting plate 2 and the horizontal plane is 90 degrees, and sufficient transportation space can be provided for the circulating forward type forepoling. A limiting block 5 is arranged on the outer side of the vertical plate of the base 1 and used for limiting the upward swing angle of the supporting plate 2 to be larger than 90 degrees due to active force or passive force, and the supporting jack 3 is prevented from being damaged.
In addition, when the piston rod of the supporting jack 3 extends out to enable the supporting plate 2 to swing downwards and to be in contact with a roadway bottom plate, the whole support can be lifted, and therefore the bottom lifting function of the support is achieved.
Claims (1)
1. The utility model provides a prevent down mechanism for circulating antedisplacement formula advance support which characterized in that: the lifting device comprises a base (1), wherein supporting plates (2) hinged with the two sides of a horizontal bottom plate of the base (1) are respectively arranged on the two sides of the horizontal bottom plate of the base (1), supporting jacks (3) are arranged between the supporting plates (2) and vertical plates of the base (1), the two ends of each supporting jack (3) are respectively hinged with the supporting plates (2) and the vertical plates of the base (1), when a piston rod of each supporting jack (3) extends out, the maximum downward swinging angle of each supporting plate (2) is 5 degrees below the horizontal plane, when the piston rod of each supporting jack (3) retracts, the maximum included angle between each supporting plate (2) and the horizontal plane is 90 degrees, at least one longitudinal anti-slip strip (4) in contact with the ground is arranged on each supporting plate (2), and a limiting block (5) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811176781.4A CN109098745B (en) | 2018-10-10 | 2018-10-10 | Anti-falling mechanism for circulating forward type forepoling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811176781.4A CN109098745B (en) | 2018-10-10 | 2018-10-10 | Anti-falling mechanism for circulating forward type forepoling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109098745A CN109098745A (en) | 2018-12-28 |
| CN109098745B true CN109098745B (en) | 2020-11-03 |
Family
ID=64868279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811176781.4A Active CN109098745B (en) | 2018-10-10 | 2018-10-10 | Anti-falling mechanism for circulating forward type forepoling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109098745B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094219A (en) * | 2019-04-29 | 2019-08-06 | 北京诚田恒业煤矿设备有限公司 | A kind of list column unit erosion control lame advanced supporting hydraulic support |
| CN110094220A (en) * | 2019-04-29 | 2019-08-06 | 北京诚田恒业煤矿设备有限公司 | A kind of mining two columns guide rod type erosion control tunnel advanced hydraulic support |
| CN110094222A (en) * | 2019-04-29 | 2019-08-06 | 北京诚田恒业煤矿设备有限公司 | A kind of advanced hydraulic prop in underground mine use double-guide-bar type erosion control tunnel |
| US10774642B1 (en) * | 2019-05-05 | 2020-09-15 | Liaoning University | Hydraulic support unit and hydraulic support for anti-rock burst roadway |
| CN112459810B (en) * | 2020-10-19 | 2022-05-27 | 煤炭科学研究总院 | Fully-mechanized mining face hydraulic support anti-falling frame system |
| CN116378735B (en) * | 2023-06-05 | 2023-08-08 | 中煤科工开采研究院有限公司 | Movable base device and hydraulic support with same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5944498A (en) * | 1982-09-03 | 1984-03-12 | 株式会社三井三池製作所 | Batch control apparatus of acute inclined self-running frame |
| SU1086180A1 (en) * | 1983-03-10 | 1984-04-15 | Государственный Научно-Исследовательский, Проектно-Конструкторский И Проектный Угольный Институт "Печорниипроект" | Bed unit of power support |
| CN86200446U (en) * | 1986-01-27 | 1988-02-10 | 煤炭科学研究院太原分院 | Great-altitude top bracing prop with two columns and riders |
| CN102777194B (en) * | 2012-05-30 | 2015-01-07 | 三一重型装备有限公司 | Anti-tipping device for hydraulic support and hydraulic support |
| CN102787857A (en) * | 2012-07-30 | 2012-11-21 | 三一重型装备有限公司 | Hydraulic support caving shield and hydraulic support |
| CN206552012U (en) * | 2017-03-08 | 2017-10-13 | 扬州宏承机械有限公司 | A kind of loader-digger supporting leg |
-
2018
- 2018-10-10 CN CN201811176781.4A patent/CN109098745B/en active Active
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| Publication number | Publication date |
|---|---|
| CN109098745A (en) | 2018-12-28 |
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