阅读说明：本技术 一种采矿用防冲击地压支护架 (Rock burst prevention support for mining ) 是由 窦林名 苏仁元 卢安良 白金正 巩思园 郭伟成 葛庆 王娟娟 马志锋 于 2020-08-28 设计创作，主要内容包括：本发明公开了一种采矿用防冲击地压支护架,包括固定底板、承重块、压板、支撑板、缓冲板、橡胶板、弧形支护板和弧形抗压板；若巷道顶板受到冲击地压产生的冲击力,此时弧形支护板、弧形抗压板和三角支撑架承压后,将压力传递给两个橡胶板,橡胶板受力变形对冲击力进行缓冲,完成缓冲后橡胶板复位；若巷道侧壁受到冲击地压产生的冲击力,此时冲击力经过锚杆施加到缓冲板上,缓冲板受力后向称重块方向移动,第一弹簧和第二弹簧受力变形对冲击力进行缓冲,完成缓冲后第一弹簧和第二弹簧复位,保证其对巷道的支护稳定性。不仅能对巷道起到较好的支撑效果,而且能在发生冲击地压时对冲击力进行缓冲,从而降低对支护架的冲击,延长其使用寿命。(The invention discloses an anti-rock burst support frame for mining, which comprises a fixed bottom plate, a bearing block, a pressure plate, a support plate, a buffer plate, a rubber plate, an arc-shaped support guard plate and an arc-shaped pressure-resistant plate, wherein the fixed bottom plate is fixedly connected with the bearing block; if the tunnel roof is subjected to impact force generated by rock burst, the arc-shaped support guard plate, the arc-shaped pressure-resistant plate and the triangular support frame bear pressure at the moment, the pressure is transmitted to the two rubber plates, the rubber plates are deformed under stress to buffer the impact force, and the rubber plates reset after the buffer; if the lateral wall of the roadway is subjected to impact force generated by rock burst, the impact force is applied to the buffer plate through the anchor rod, the buffer plate moves towards the weighing block after being stressed, the first spring and the second spring are deformed under stress to buffer the impact force, the first spring and the second spring reset after the buffering is completed, and the supporting stability of the roadway is guaranteed. The support structure not only can play a good supporting effect on the roadway, but also can buffer the impact force when rock burst occurs, thereby reducing the impact on the support frame and prolonging the service life of the support frame.)

1. An anti-impact ground pressure support frame for mining, which is characterized by comprising a fixed bottom plate, a bearing block, a pressure plate, two support plates, two buffer plates, two rubber plates, an arc-shaped support guard plate and an arc-shaped pressure-resistant plate,

the bearing block is fixed on the fixed base plate, the pressing plate is fixed on the bearing block, and the two buffer plates are vertically arranged on the fixed base plate and symmetrically positioned at two sides of the pressing plate; the two supporting plates are vertically fixed on the upper surface of the pressing plate and respectively close to the two sides of the pressing plate; a plurality of first springs are arranged between the supporting plate and the buffer plate which are positioned on the same side of the pressing plate, and two ends of each first spring are fixedly connected with one side of the supporting plate and one side of the buffer plate respectively; second springs are arranged between the lower ends of the two buffer plates and two sides of the bearing block, and two ends of each second spring are fixedly connected with the side surface of the lower end of each buffer plate and one side of the bearing block respectively; a plurality of anchor rods are fixed on the other sides of the two buffer plates;

the two rubber plates are respectively fixed at the upper ends of the two supporting plates, the arc-shaped supporting plate is positioned at the upper parts of the two rubber plates, and the two ends of the arc-shaped supporting plate are respectively fixedly connected with the upper surfaces of the two rubber plates; the arc-shaped pressure-resistant plate cover is arranged outside the arc-shaped support plate, two ends of the arc-shaped pressure-resistant plate cover are fixedly connected with the upper surfaces of the two rubber plates respectively, a plurality of triangular support frames are arranged between the arc-shaped pressure-resistant plate and the arc-shaped support plate, the side surfaces of the triangular support frames are fixedly connected with the side surfaces of the arc-shaped pressure-resistant plate and the arc-shaped support plate respectively, and the radian of the arc-shaped pressure-resistant plate and the arc.

2. The mining rock burst prevention supporting frame for the mining according to claim 1, characterized by further comprising two reinforcing ribs, wherein one end of each reinforcing rib is hinged with the middle point of the arc-shaped supporting plate, and the other end of each reinforcing rib is hinged with the two supporting plates respectively.

3. An anti-rock burst support frame for mining use as claimed in claim 1, wherein the upper end and the lower end of the buffer plate are provided with slide blocks, and the upper end of the support plate and the upper surface of the fixed base plate are provided with slide rails, so that the slide blocks of the buffer plate can move towards the weighing block in the slide rails.

4. An anti-rock burst supporting frame for mining use according to claim 1, wherein the upper end of the supporting plate is a right-angled bent edge; the lower end of the buffer plate is a right-angle bent edge.

5. An impact and ground pressure preventing support frame for mining use according to claim 1, wherein a plurality of anchor rods of the other side of the two buffer plates are equally spaced.

Technical Field

The invention relates to a mining support frame, in particular to an anti-rock burst support frame for mining.

Background

The rock burst is a major disaster threatening the safety production of the mining industry, once the rock burst occurs underground, roadway deformation and rib caving, roof caving, bottom bulging or support collapse, roadway blockage and even roof and bottom plate closure can be caused, personal injury to operators and even death accidents can be caused, and due to the low use cost of the wooden shed, the traditional roadway supporting method mainly adopts the wooden shed for supporting, but the supporting strength of the wooden shed is low, and the roadway is often destroyed integrally once the rock burst occurs; with the reform of the roadway supporting mode, rigid supporting equipment is produced, the structure is adopted at present, the structure can achieve a good impact effect (such as a ladder iron shed) on the roadway, but the rigid supporting cannot buffer impact ground pressure when the impact ground pressure occurs, so that the support is easy to damage, and the supporting cost of a coal mine is increased.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides an anti-rock burst support frame for mining, which not only can have a better supporting effect on a roadway, but also can buffer impact force when rock burst occurs, so that the impact force on the support frame is reduced, the service life of the support frame is prolonged, and the supporting cost of a coal mine is effectively reduced.

In order to achieve the purpose, the invention adopts the technical scheme that: an anti-impact ground pressure support frame for mining comprises a fixed bottom plate, a bearing block, a pressure plate, two support plates, two buffer plates, two rubber plates, an arc-shaped support guard plate and an arc-shaped pressure-resistant plate,

the bearing block is fixed on the fixed base plate, the pressing plate is fixed on the bearing block, and the two buffer plates are vertically arranged on the fixed base plate and symmetrically positioned at two sides of the pressing plate; the two supporting plates are vertically fixed on the upper surface of the pressing plate and respectively close to the two sides of the pressing plate; a plurality of first springs are arranged between the supporting plate and the buffer plate which are positioned on the same side of the pressing plate, and two ends of each first spring are fixedly connected with one side of the supporting plate and one side of the buffer plate respectively; second springs are arranged between the lower ends of the two buffer plates and two sides of the bearing block, and two ends of each second spring are fixedly connected with the side surface of the lower end of each buffer plate and one side of the bearing block respectively; a plurality of anchor rods are fixed on the other sides of the two buffer plates;

the two rubber plates are respectively fixed at the upper ends of the two supporting plates, the arc-shaped supporting plate is positioned at the upper parts of the two rubber plates, and the two ends of the arc-shaped supporting plate are respectively fixedly connected with the upper surfaces of the two rubber plates; the arc-shaped pressure-resistant plate cover is arranged outside the arc-shaped support plate, two ends of the arc-shaped pressure-resistant plate cover are fixedly connected with the upper surfaces of the two rubber plates respectively, a plurality of triangular support frames are arranged between the arc-shaped pressure-resistant plate and the arc-shaped support plate, the side surfaces of the triangular support frames are fixedly connected with the side surfaces of the arc-shaped pressure-resistant plate and the arc-shaped support plate respectively, and the radian of the arc-shaped pressure-resistant plate and the arc.

And one end of each reinforcing rib is hinged with the middle point of the arc-shaped supporting plate, and the other end of each reinforcing rib is hinged with the two supporting plates respectively. The reinforcing ribs are arranged, so that the supporting strength of the whole supporting frame to the roadway top plate can be improved, and the supporting stability is ensured.

Further, buffer board upper end and lower extreme all are equipped with the slider, and backup pad upper end and PMKD upper surface all are equipped with the slide rail, make the slider of buffer board can move towards the piece direction of weighing in the slide rail. Through this kind of structure, can receive the impact force that the tunnel lateral wall transmitted when the buffer board, can remove along specific direction and cushion, avoid its arbitrary removal to guarantee the stability of strutting of whole support frame.

Further, the upper end of the supporting plate is a right-angle bent edge; the lower end of the buffer plate is a right-angle bent edge. The structure can improve the support stability of the support plate and the buffer plate.

Further, a plurality of anchor rods on the other sides of the two buffer plates are arranged at equal intervals. The structure can ensure that the buffer board is stressed evenly after supporting the side wall of the roadway, thereby improving the supporting stability.

Compared with the prior art, the invention adopts a combination mode of the fixed bottom plate, the bearing block, the pressing plate, the two supporting plates, the two buffer plates, the two rubber plates, the arc-shaped supporting plate and the arc-shaped pressure-resisting plate, and in the supporting process, if the roadway roof is subjected to impact force generated by rock burst, the arc-shaped supporting plate, the arc-shaped pressure-resisting plate and the triangular supporting frame bear pressure, the pressure is transmitted to the two rubber plates, the rubber plates are deformed under stress to buffer the impact force, and the rubber plates are reset after the buffer is finished; the triangular support frame is arranged, the principle that the triangle has stability is effectively utilized, and therefore the compression resistance of the arc-shaped support plate and the arc-shaped compression resistant plate is improved; if the lateral wall of the roadway is subjected to impact force generated by rock burst, the impact force is applied to the buffer plate through the anchor rod, the buffer plate moves towards the weighing block after being stressed, the first spring and the second spring are deformed under stress to buffer the impact force, the first spring and the second spring reset after the buffering is completed, and the supporting stability of the roadway is guaranteed. Therefore, the invention not only can play a better supporting effect on the roadway, but also can buffer the impact force when rock burst occurs, thereby reducing the impact force on the support frame, prolonging the service life of the support frame and effectively reducing the support cost of the coal mine.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the construction of the buffer plate and anchor rod of the present invention;

FIG. 3 is an enlarged view of a portion of the curved backup plate, curved pressure resisting plate and triangular support bracket of FIG. 1;

fig. 4 is a left side view of the portion of the baffle plate of fig. 1.

In the figure: 1. fixing the bottom plate; 2. a buffer plate; 3. a first spring; 4. an anchor rod; 5. a support plate; 6. a rubber plate; 7. an arc-shaped supporting and protecting plate; 8. reinforcing ribs; 9. a triangular support frame; 10. an arc-shaped pressure-resistant plate; 11. pressing a plate; 12. a bearing block; 13. a second spring; 14. a slider; 15. a slide rail.

Detailed Description

The present invention will be further explained below.

As shown in fig. 1 to 4, the invention comprises a fixed bottom plate 1, a bearing block 12, a pressure plate 11, two supporting plates 5, two buffer plates 2, two rubber plates 6, an arc-shaped supporting and protecting plate 7 and an arc-shaped pressure resisting plate 10,

the bearing block 12 is fixed on the fixed base plate 1, the pressing plate 11 is fixed on the bearing block 12, and the two buffer plates 2 are vertically arranged on the fixed base plate 1 and symmetrically positioned at two sides of the pressing plate 11; the two supporting plates 5 are vertically fixed on the upper surface of the pressing plate 11 and respectively close to two sides of the pressing plate 11; a plurality of first springs 3 are arranged between the supporting plate 5 and the buffer plate 2 which are positioned on the same side of the pressing plate 11, and two ends of each first spring 3 are fixedly connected with one side of the supporting plate 5 and one side of the buffer plate 2 respectively; second springs 13 are arranged between the lower ends of the two buffer plates 2 and two sides of the bearing block 12, and two ends of each second spring 13 are fixedly connected with the side surface of the lower end of each buffer plate 2 and one side of the bearing block 12 respectively; a plurality of anchor rods 4 are fixed on the other sides of the two buffer plates 2, and the anchor rods 4 are arranged at equal intervals; the upper end of the supporting plate 5 is a right-angle bent edge; the lower end of the buffer plate 2 is a right-angle bent edge; one ends of the two reinforcing ribs 8 are hinged with the middle point of the arc-shaped supporting and protecting plate 7, and the other ends of the two reinforcing ribs 8 are respectively hinged with the two supporting plates 5; the upper end and the lower end of the buffer plate 2 are both provided with a sliding block 14, and the upper end of the supporting plate 5 and the upper surface of the fixed bottom plate 1 are both provided with a sliding rail 15, so that the sliding block 14 of the buffer plate 2 can move towards the weighing block 12 in the sliding rail 15;

the two rubber plates 6 are respectively fixed at the upper ends of the two supporting plates 5, the arc-shaped supporting plate 7 is positioned at the upper parts of the two rubber plates 6, and the two ends of the arc-shaped supporting plate are respectively fixedly connected with the upper surfaces of the two rubber plates 6; arc resistance board 10 cover is outside at arc backplate 7, and its both ends respectively with two 6 upper surface fixed connection of rubber boards, is equipped with a plurality of triangle-shaped support frames 9 between arc resistance board 10 and the arc backplate 7, a plurality of triangle-shaped support frames 9 respectively with arc resistance board 10 side and 7 side fixed connection of arc backplate, arc resistance board 10 is the same with the radian of arc backplate 7.

Firstly, fixing a fixed bottom plate 1 to a roadway bottom plate to be supported through a fastener, then assembling the structure of the invention in sequence, and inserting anchor rods 4 into the wall bodies on two sides of the roadway in the installation process to complete the assembly and support process of the invention; in the using process, if the tunnel top plate is subjected to impact force generated by rock burst, the arc-shaped support guard plate 7, the arc-shaped pressure-resistant plate 10 and the triangular support frame 9 bear pressure, the pressure is transmitted to the two rubber plates 6, the rubber plates 6 are deformed under the stress to buffer the impact force, and the rubber plates 6 reset after the buffering; the triangular support frame 9 is arranged, the principle that the triangle has stability is effectively utilized, and therefore the compression resistance of the arc-shaped support guard plate 7 and the arc-shaped compression resistant plate 10 is improved; if the lateral wall of the roadway is subjected to impact force generated by rock burst, the impact force is applied to the buffer plate 2 through the anchor rod 4, the buffer plate 2 moves towards the weighting block 12 after being stressed, the first spring 3 and the second spring 13 deform under stress to buffer the impact force, the first spring 3 and the second spring 13 reset after the buffering is completed, and the supporting stability of the roadway is ensured.