CN111456790A - Self-moving type roof protection and anchor support integrated device and roof protection and support method - Google Patents
Self-moving type roof protection and anchor support integrated device and roof protection and support method Download PDFInfo
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- CN111456790A CN111456790A CN202010273512.0A CN202010273512A CN111456790A CN 111456790 A CN111456790 A CN 111456790A CN 202010273512 A CN202010273512 A CN 202010273512A CN 111456790 A CN111456790 A CN 111456790A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000008093 supporting effect Effects 0.000 claims abstract description 121
- 238000005553 drilling Methods 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 238000010276 construction Methods 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 claims description 10
- 238000004873 anchoring Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 5
- 230000001012 protector Effects 0.000 claims 5
- 239000003245 coal Substances 0.000 abstract description 9
- 238000005065 mining Methods 0.000 abstract description 8
- 239000010720 hydraulic oil Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000011148 porous material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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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
- E21D23/04—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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
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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
- E21D23/04—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
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
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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
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Abstract
The invention discloses a self-moving type top protection and anchor support integrated device and a top protection support method, belonging to the field of coal mining, wherein the device comprises a joist, an arched beam, a jumbolter and a plurality of groups of telescopic supporting legs, each group of supporting legs is connected with a joist, and the joist is provided with a gas tire which can protrude out of the upper end of the joist after being inflated; an arched beam is arranged between two adjacent groups of supporting legs, and the anchor rod drilling machine is connected to the arched beam in a sliding mode so as to support the roadway; the multiple groups of supporting legs are arranged in sequence, two groups of supporting legs which are separated by one group of supporting legs are connected to form a walking part, and a telescopic mechanism arranged between adjacent walking parts is used for pushing the adjacent walking parts to approach or keep away from each other. The invention can adapt to the condition of uneven roadway during temporary support, can quickly complete an anchor net support system and improve the coal mining efficiency.
Description
Technical Field
The invention belongs to the field of coal mining, and particularly relates to a self-moving type roof protection and anchor support integrated device and a roof protection and support method.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The inventor finds that the imbalance of digging, supporting and anchoring is a main restriction factor influencing the coal mining efficiency, according to statistics, the coal cutting time of a working face usually accounts for 17% -34%, the supporting time accounts for 50% -67%, the time of the working face and the supporting time is not coordinated, the front and back work is discontinuous, and the coal mining efficiency is greatly limited. The traditional metal forepoling beam roadway supporting method cannot carry out enough supporting force on a roof in an empty roof area, the temporary supporting operation process is complex, the labor intensity of workers is high, and the safety of the temporary supporting of a complex roadway is difficult to guarantee. The common self-moving temporary roof protection mechanism cannot be tightly attached to the top plate under the condition that the top plate of the roadway is uneven, gaps are easily left, and the supporting effect is poor; meanwhile, the top supporting structure is lifted synchronously, a buffer device is not arranged between the top beam and the top plate, the integral structure of a top plate rock stratum is easily damaged in the process of lifting and supporting the top plate for many times, and the anchor net support is invalid.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a self-moving type top protection and anchor support integrated device and a top protection support method, which can adapt to the condition of uneven roadway during temporary support, can quickly complete an anchor net support system and improve the coal mining efficiency.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, the embodiment of the invention provides a self-moving type top protection and anchor support integrated device, which comprises a joist, an arched beam, a jumbolter and a plurality of groups of telescopic supporting legs, wherein each group of supporting legs is connected with one joist, and the joist is provided with a pneumatic tire which can protrude out of the upper end of the joist after being inflated; an arched beam is arranged between two adjacent groups of supporting legs, and the anchor rod drilling machine is connected to the arched beam in a sliding mode so as to support the roadway; the multiple groups of supporting legs are arranged in sequence, two groups of supporting legs which are separated by one group of supporting legs are connected to form a walking part, and a telescopic mechanism arranged between adjacent walking parts is used for pushing the adjacent walking parts to approach or keep away from each other.
As a further technical scheme, two groups of supporting legs which are separated by one group of supporting legs are connected through a longitudinal beam; each group of supporting legs comprises two supporting legs which are connected through a cross beam; two ends of the joist are respectively connected with two supporting legs in the group of supporting legs, and two ends of the arched beam are fixedly connected with the longitudinal beam; the fixed end of the telescopic mechanism is connected to one cross beam, and the movable end of the telescopic mechanism is connected to another adjacent cross beam.
According to a further technical scheme, the joist comprises a U-shaped beam and air tires positioned in the U-shaped beam, one side of each air tire is fixed in the U-shaped beam, and a plurality of groups of air tires are arranged in each beam; the pneumatic tire can protrude out of the opening on the top side of the U-shaped beam after being inflated.
As a further technical scheme, the pneumatic tire is a continuous high-pressure-resistant rubber pneumatic tire.
As a further technical scheme, blocking heads for blocking the anchor rod drilling machine are welded at two ends of the arched beam.
In a second aspect, an embodiment of the present invention further provides a step-by-step self-moving type roof protection and support method, where the self-moving type roof protection and anchor support integrated device according to the first aspect is adopted, and the method includes the following steps:
inflating the pneumatic tire;
the pneumatic tire on the mechanism joist pushes the anchor net to be close to the top of the roadway;
the anchor rod drilling machine 1 carries out primary anchor rod construction;
the first walking part is lifted up, the telescopic mechanism is contracted, the first walking part moves forwards, and falls down after the movement is finished, so that the first step is completed;
the anchor rod drilling machine 1 carries out primary anchor rod construction;
and lifting the second walking part, extending the telescopic mechanism, and enabling the second walking part to move forwards and fall down to complete the second step of stepping.
The anchor rod drilling machine 1 carries out primary anchor rod construction;
and repeating the steps to realize the hydraulic stepping of the whole structure.
As a further technical scheme, after the anchor rod drilling machine finishes the current roof protecting operation, the pneumatic tire of the joist is released.
According to the technical scheme provided by the invention, compressed air can be filled into the air tire fixed on the joist, so that the internal pressure reaches 0.7Mpa, the air tire is outwards ejected by 20-30 cm and is close to the top of a roadway, the falling rocks on the upper part are protected, the safety of personnel and equipment is protected, the I-shaped steel arched beam is fixed on each span longitudinal beam, and the anchor rod drilling machine can move by means of the gears on the arched beam, so that the operation of installing the anchor net is completed during roof protection.
The beneficial effects of the above-mentioned embodiment of the present invention are as follows:
1. in the technical scheme provided by the invention, the temporary roof protecting device and the anchor rod drilling machine are integrated, the combination of the temporary roof protecting and the anchor support system is realized, the temporary roof protecting device can adapt to different support conditions, the primary support of drilling and anchor net installation can be completed, and the operation is convenient; meanwhile, in the technical scheme provided by the invention, the gas tire is adopted to attach and jack the top of the roadway, and the gas tire can be completely attached to the top of the roadway due to the elasticity of the gas tire, so that the adaptability is high, and the personnel safety is improved.
2. According to the technical scheme provided by the invention, after the heading machine is used for heading, the anchor rod drilling machine can be better attached to an uneven roadway, the support of the anchor rod can be rapidly completed by means of a rapid positioning technology, the full-automatic hydraulic stepping can rapidly reach the next working area, the support time is saved, and the overall coal mining efficiency is improved.
3. According to the technical scheme, in order to adapt to the condition of an uneven roadway, the U-shaped joist main body is made of the U-shaped joist, the high-pressure-resistant rubber air tire is fixed inside the U-shaped joist, the air tire is continuous inside, the air tire can be inflated by utilizing underground compressed air, the internal pressure after inflation can reach 0.7Mpa and can be expanded outwards by 20-30 cm, the elasticity of the air tire is utilized to adapt to the top of the uneven roadway, and the strength requirement of the top of the supporting roadway is met by utilizing the elasticity of the compressed air.
4. In the technical scheme provided by the invention, an arched beam is fixed on a cross beam through a welding seam and a bolt, and a rack is fixed at the lower flange position of the arched beam, so that a path is provided for movement of a jumbolter; the anchor rod drilling machine is fixed on the I-shaped steel arched beam through a fixing device, the fixing device is provided with two gears at the positions corresponding to the arched beam racks and provides power for the gears, and therefore the anchor rod drilling machine can move on the arched beam; by the means, the anchor rod drilling machine can complete supporting work of the top surface of the whole roadway, and work efficiency of the anchor rod drilling machine in supporting is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Figure 1 is an elevational view of the present invention as a pneumatic tire is inflated in accordance with one or more embodiments,
figure 2 is an elevational view of the present invention when the pneumatic tire is not inflated according to one or more embodiments,
figure 3 is a hydraulic stepper mechanism according to one or more embodiments of the present invention,
figure 4 is a cross-sectional view taken along line a-a of figure 3 according to one or more embodiments of the present invention,
figure 5 is a diagram of a reinforced connection structure according to one or more embodiments of the present invention,
figure 6 is a cross-sectional view of a transmission according to one or more embodiments of the present invention,
FIG. 7 is a schematic illustration of a transmission mechanism according to one or more embodiments of the present invention.
In the figure, 1-jumbolter, 2-U-shaped beam, 3-bulged air tyre, 4-non-bulged air tyre, 5-support column, 6-hydraulic oil cylinder, 7-reinforced support, 8-support leg cushion block, 9-cross beam, 10-longitudinal beam between support columns, 11-upper end longitudinal beam, 12-arched beam, 13-baffle, 14-lower end longitudinal beam, 15-reinforced connection structure, 16-longitudinal beam fixing device, 17-pore channel, 18-telescopic oil cylinder, 19-welding line, 20-bolt, 21-hydraulic motor, 20-gear, 23-rack, 24-fixing device shell, 25-jumbolter rotating shaft, 26-fixing device and 27-gear rotating shaft.
In the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the illustration is for illustrative purposes only.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, and for example, the terms "mounted," "connected," and "fixed" may be fixed, detachable, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.
As introduced by the background art, aiming at the defects in the prior art, the invention aims to provide a self-moving type top protection and anchor support integrated device and a top protection support method, which can adapt to the condition of uneven roadway during temporary support, can quickly complete an anchor net support system and improve the coal mining efficiency. The following description is made in conjunction with the drawings and the detailed description of the embodiments.
Example 1
In a typical embodiment of the invention, as shown in fig. 1, a self-moving type roof protection and anchor support integrated device is used for simultaneously performing temporary roof protection and temporary support on a roadway, and comprises a joist 2, an arched girder 12, an anchor drilling machine 1 and four groups of telescopic supporting legs, wherein each group of supporting legs comprises a hydraulic oil cylinder 6 to realize the telescopic effect relative to the ground of the roadway, the top of each group of supporting legs is connected with a joist, specifically, the top side of the hydraulic oil cylinder is connected with the joist through a flange, and the joist is provided with an air tyre which is inflated and can protrude out of the surface of the joist; an arched beam 12 is arranged between two adjacent groups of supporting legs, and the anchor drilling machine 1 is connected to the arched beam 12 in a sliding mode so as to support the roadway; the multiple groups of supporting legs are arranged in sequence, two groups of supporting legs which are separated by one group of supporting legs are connected to form a walking part, and a telescopic mechanism is arranged between every two adjacent walking parts.
It can be understood that the bottom end of the moving part of the hydraulic oil cylinder 6 is connected with the supporting leg cushion block 8.
In this embodiment, a mechanism formed by the hydraulic cylinder 6 located below and the steel beam connected to the hydraulic cylinder 6 is referred to as a hydraulic stepping mechanism, that is, the hydraulic stepping mechanism in this embodiment includes the four sets of support legs.
As shown in figure 2, hydraulic cylinder 6 totally eight in this embodiment, respectively four symmetrical arrangement about along the axis of whole device, every group supporting leg includes two supporting legs, and two supporting legs pass through crossbeam 9 and connect, and crossbeam 9 is the steel crossbeam, prevents that the structure takes place to unbalance in the motion process. It is understood that the first beam 9, the second beam 9, the third beam 9 and the fourth beam 9 are shared by four beams 9 in the present embodiment.
Because each group of supporting legs in the embodiment comprises a pair of supporting legs, the supporting legs in the embodiment can be divided into a first pair of supporting legs, a second pair of supporting legs, a third pair of supporting legs and a fourth pair of supporting legs, a longitudinal beam is arranged between the first pair of supporting legs and the third pair of supporting legs, and the first pair of supporting legs and the third pair of supporting legs are connected through the longitudinal beam; the longitudinal beams comprise upper end longitudinal beams 11 and lower end longitudinal beams 14, the two ends of the upper end longitudinal beams 11 are respectively connected with the upper ends of the first pair of supporting legs and the upper ends of the third pair of supporting legs, and the two ends of the lower end longitudinal beams 14 are respectively connected with the lower ends of the first pair of supporting legs and the lower ends of the third pair of supporting legs; a longitudinal beam is arranged between the second pair of supporting legs and the fourth pair of supporting legs and is connected with the second pair of supporting legs and the fourth pair of supporting legs through the longitudinal beam; the longitudinal beams comprise upper end longitudinal beams 11 and lower end longitudinal beams 14, the two ends of the upper end longitudinal beams 11 are respectively connected with the upper ends of the second pair of supporting legs and the upper ends of the fourth pair of supporting legs, and the two ends of the lower end longitudinal beams 14 are respectively connected with the lower ends of the second pair of supporting legs and the lower ends of the fourth pair of supporting legs; the longitudinal beam can enable the two groups of supporting legs to move forwards in a coordinated mode, the two groups of supporting legs connected through the longitudinal beam are respectively called a first walking portion and a second walking portion, the first walking portion comprises a first pair of supporting legs and a third pair of supporting legs, and the second walking portion comprises a second pair of supporting legs and a fourth pair of supporting legs.
It will be appreciated that the stringers are connected to the support legs by means of a fixing 16, which in this embodiment is a flange.
It will be appreciated that the arched beams 12 are fixedly attached at both ends to the stringers.
A set of telescopic oil cylinders 18 are symmetrically arranged between the second cross beam 8 and the third cross beam 8 to serve as telescopic mechanisms, two ends of each telescopic oil cylinder 18 are respectively connected with the second cross beam 8 and the third cross beam 8, the second cross beam 8 and the third cross beam 8 can move in a coordinated mode, and the positions of the second cross beam 8 and the third cross beam 8 are adjusted.
The lower sides of the second beam 8 and the third beam 8 are both provided with annular parts, and pore channels 17 are formed on the inner sides of the annular parts.
The upper end longitudinal beam 11 of the first walking part penetrates through the pore 17 below the second cross beam 8, so that the stability of the structure during stepping is improved, and similarly, the upper end longitudinal beam 11 of the second walking part penetrates through the pore 17 below the third cross beam 8, so that the stability of the structure is improved.
During stepping, the first pair of supporting legs and the third pair of supporting legs are lifted, the hydraulic oil cylinder 6 between the cross beams 8 is contracted, the first pair of supporting legs and the third pair of supporting legs move forwards together, and after the movement is finished, the supporting legs are dropped down to finish the first stepping;
at the moment, the operation of hanging net and drilling anchor rods can be carried out for one time;
and then lifting the second pair of supporting legs and the fourth pair of supporting legs, extending the hydraulic oil cylinder 6 between the cross beams 8, moving the second pair of supporting legs and the fourth pair of supporting legs forwards, and falling the supporting legs after moving to a proper position to complete the second step stepping and the circular movement, thereby realizing the hydraulic stepping of the whole structure.
As shown in fig. 4, the joist is also connected with the lower beam 8 by a welding seam 19 and bolts 20.
As shown in fig. 3, a vertical support column 5 is arranged in the span of the cross beam 8 and the joist, and two ends of the support column 5 are respectively connected with the cross beam 8 and the joist. Because the supporting columns 5 are connected between each joist and the cross beam 8 below the joist, the supporting columns 5 also comprise a plurality of supporting columns 5 which are named as first to fourth supporting columns 5 respectively, and the naming sequence of the first to fourth supporting columns 5 is the same as that of the first to fourth pairs of supporting legs.
As shown in fig. 1, the joist includes U type roof beam 2 and the pneumatic tire that is located U type roof beam 2, and the pneumatic tire is fixed inside U type roof beam 2, and it can be understood that, the pneumatic tire of the inside fixed connection of U type roof beam 2 is continuous high withstand voltage rubber pneumatic tire, and the pneumatic tire can utilize compressed air inflation in the pit, and the pneumatic tire can outwards bulge out 20 ~ 30 cm's height and internal pressure can reach 0.7Mpa after the inflation is accomplished, utilizes the elasticity adaptation unevenness tunnel top of pneumatic tire promptly, utilizes the elasticity of compressed air to satisfy the intensity requirement of supporting tunnel top again. When anchor net supporting is carried out, the anchor net is arranged above the high-pressure-resistant rubber pneumatic tire, the anchor net is pressed into the anchor rod after being lifted along with the integral structure and close to the roadway, primary anchor net supporting operation is completed, compared with the traditional rigid anchor supporting equipment operation, the flexible high-pressure-resistant rubber pneumatic tire is used as a contact pressure buffering device between the top protecting structure and the top plate, and the top protecting structure can be prevented from damaging the integrity of the top plate and the installed anchor net supporting under the repeated supporting (ascending) and unloading (descending) effects.
A longitudinal beam is arranged between the first supporting column 5 and the third supporting column 5 at the bottom side for connection, and the longitudinal beam passes through a roadway on the second supporting column 5; similarly, a longitudinal beam is arranged between the second supporting column 5 and the fourth supporting column 5 at the bottom side for connection, and the longitudinal beam passes through a roadway on the third supporting column 5. The longitudinal beams can coordinate the movement between the cross beams 8 and simultaneously improve the overall stability of the structure.
During movement, the first joist and the third joist move along with the first cross beam and the third cross beam below the first joist and the third joist, and the second joist and the fourth joist move along with the second cross beam and the fourth cross beam below the second joist and the fourth cross beam.
The arched girder 12 is made of I-steel, a rack 23 is fixed on a lower flange, the anchor rod drilling machine 1 is fixed on the arched girder 12 through a fixing device, the fixing device 26 in the embodiment is a flange, two gears 20 are arranged at the position, corresponding to the rack, of the lower flange of the fixing device 26, the gears 20 are meshed with the rack 23, the gears 20 are connected with a hydraulic motor 21 to serve as a power source, in other embodiments, an internal combustion engine or a motor can be used as the power source, the hydraulic motor 21 is connected with the gears 20, the anchor rod drilling machine 1 can move left and right on the arched girder 12, drilling and anchoring operations of the top and the upper are sequentially completed, and blocking heads 13 are welded at two ends of the arched girder 12 to prevent the anchor rod. And adjusting the stepping amount of the stepping mechanism every time to be the same as the longitudinal distance of the anchor rods, and finishing the stepping every time to finish the supporting task of one anchor rod.
Example 2
As a typical embodiment of the present invention, this embodiment discloses a method for supporting a self-propelled walking roof, using the apparatus disclosed in embodiment 1, including the following steps:
inflating the pneumatic tire;
the pneumatic tire on the mechanism joist pushes the anchor net to be close to the top of the roadway; the anchor rod drilling machine 1 carries out primary anchor rod construction;
the first walking part is lifted up, the telescopic mechanism is contracted, the first walking part moves forwards, and falls down after the movement is finished, so that the first step is completed;
the anchor rod drilling machine 1 carries out primary anchor rod construction;
lifting the second walking part, extending the telescopic mechanism, and enabling the second walking part to move forwards and fall down to complete the second step;
the anchor rod drilling machine 1 carries out primary anchor rod construction;
and repeating the steps to realize the hydraulic stepping of the whole structure.
Taking a certain roadway as an example, the embodiment discloses that the overall construction process is as follows:
firstly, moving the self-moving type top protection and anchor support integrated device to a working area, and inflating the high-pressure-resistant rubber pneumatic tire. The heading machine excavates a face rock stratum to form a roadway space, and the self-moving temporary roof protection and anchor drilling machine integrated structure and the heading machine synchronously advance, and the roadway space is not supported at the moment;
secondly, after the tunneling is finished, lowering the self-moving type canopy guard and anchor support integrated device, then placing an anchor net above a joist of the structure, integrally lifting the structure to the lower part of a roadway top plate, and pushing the anchor net to be tightly attached to the top of the roadway;
thirdly, controlling the anchor rod drilling machine to reach a required operation position through a quick positioning system, and quickly completing anchor rod construction of the top, the side part and the side wall of the roadway;
fourthly, after the current top plate support is finished, slightly lowering the whole mechanism to provide a moving space for stepping, and adding a new anchor net;
fifthly, driving the integral structure to move forward by using a hydraulic stepping system, lifting the first pair of supporting legs and the third pair of supporting legs during movement, contracting the hydraulic oil cylinder 6 between the cross beams 9, and moving the first pair of supporting legs and the third pair of supporting legs forward together;
and sixthly, lifting the second pair of supporting legs and the fourth pair of supporting legs, extending the hydraulic oil cylinder 6 between the cross beams 8, moving the second pair of supporting legs and the fourth pair of supporting legs forwards, falling the supporting legs after moving to a proper position, adding the anchor net, lifting the whole mechanism, and enabling the high-pressure-resistant rubber pneumatic tire to tightly push against the rugged roadway top surface to perform one-time drilling and anchoring operation. When the self-moving type top protection and anchor support integrated device is stepped forwards, the heading machine synchronously tunnels forwards.
And (4) performing cyclic operation to finish the temporary support and the primary support of the top plate.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A self-moving type top protection and anchor support integrated device is characterized by comprising a joist, an arched girder, an anchor rod drilling machine and a plurality of groups of telescopic supporting legs, wherein each group of supporting legs is connected with the joist; an arched beam is arranged between two adjacent groups of supporting legs, and the anchor rod drilling machine is connected to the arched beam in a sliding mode so as to support the roadway; the multiple groups of supporting legs are arranged in sequence, two groups of supporting legs which are separated by one group of supporting legs are connected to form a walking part, and a telescopic mechanism arranged between adjacent walking parts is used for pushing the adjacent walking parts to approach or keep away from each other.
2. The self-moving roof protector and anchor integral device of claim 1 wherein the two sets of support legs separated by one set of support legs are connected by a longitudinal beam; each group of supporting legs comprises two supporting legs which are connected through a cross beam; two ends of the joist are respectively connected with two supporting legs in the group of supporting legs, and two ends of the arched beam are fixedly connected with the longitudinal beam; the fixed end of the telescopic mechanism is connected to one cross beam, and the movable end of the telescopic mechanism is connected to another adjacent cross beam.
3. The self-moving roof guard and anchor support integrated device as claimed in claim 2, wherein a support column is connected between each joist and the cross beam below the joist.
4. The self-moving roof protector and anchor support integrated device as claimed in claim 1, wherein the telescopic mechanism is a hydraulic cylinder.
5. The self-moving roof protecting and anchoring integrated device as claimed in claim 1, wherein the joist comprises a U-shaped beam and air tires positioned in the U-shaped beam, one side of the air tires is fixed in the U-shaped beam, and a plurality of groups of air tires are arranged in each beam; the pneumatic tire can protrude out of the opening of the U-shaped beam after being inflated.
6. The self-moving roof protector and anchor support integrated device as recited in claim 5, wherein the pneumatic tire is a continuous high pressure rubber pneumatic tire.
7. The self-moving roof protector and anchor support integrated device as recited in claim 1, wherein the lower flange of said arched girder is provided with a rack, the jumbolter is fixed on the arched girder by a fixing device, the fixing device is provided with a gear engaged with the rack, the gear is connected with a power source, the power source is connected with and drives the gear, so that the jumbolter can reciprocate on the arched girder to sequentially complete the drilling and anchoring operation of the roof and the upper.
8. The self-moving roof protector and anchor support integrated device as claimed in claim 7, wherein the arched girder has blocking heads welded to both ends thereof for blocking the jumbolter.
9. A stepping self-moving type roof protecting and supporting method, which is characterized in that the self-moving type roof protecting and anchoring integrated device according to any one of claims 1-8 is adopted, and comprises the following steps:
inflating the pneumatic tire;
the pneumatic tire on the mechanism joist pushes the anchor net to be close to the top of the roadway; the anchor rod drilling machine 1 carries out primary anchor rod construction;
the first walking part is lifted up, the telescopic mechanism is contracted, the first walking part moves forwards, and falls down after the movement is finished, so that the first step is completed;
the anchor rod drilling machine 1 carries out primary anchor rod construction;
lifting the second walking part, extending the telescopic mechanism, and enabling the second walking part to move forwards and fall down to complete the second step;
the anchor rod drilling machine 1 carries out primary anchor rod construction;
and repeating the steps to realize the hydraulic stepping of the whole structure.
10. A step-advancing self-advancing roof protection and support method as claimed in claim 9, wherein the roof bolter releases the pneumatic tyre of the joist after the roof protection operation is completed.
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| CN202010273512.0A CN111456790B (en) | 2020-04-09 | 2020-04-09 | Self-moving type roof protection and anchor support integrated device and roof protection and support method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116717290A (en) * | 2023-07-31 | 2023-09-08 | 窑街煤电集团有限公司 | Underground rock burst preventing device |
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| DE2705460A1 (en) * | 1977-02-10 | 1978-08-17 | Hemscheidt Maschf Hermann | Mine gallery roof drilling protective support - has overhead sloping plate with opening for drill between front and rear supports |
| CN102654060A (en) * | 2012-05-23 | 2012-09-05 | 辽宁天安矿山科技有限公司 | Tunnel excavation staggered type supporting device |
| CN108825273A (en) * | 2018-06-14 | 2018-11-16 | 青岛锐祥自动化设备有限公司 | A kind of bracket |
| CN110388224A (en) * | 2019-08-22 | 2019-10-29 | 国家能源集团宁夏煤业有限责任公司梅花井煤矿 | A kind of step type support system for arched tunnel driving |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2705460A1 (en) * | 1977-02-10 | 1978-08-17 | Hemscheidt Maschf Hermann | Mine gallery roof drilling protective support - has overhead sloping plate with opening for drill between front and rear supports |
| CN102654060A (en) * | 2012-05-23 | 2012-09-05 | 辽宁天安矿山科技有限公司 | Tunnel excavation staggered type supporting device |
| CN108825273A (en) * | 2018-06-14 | 2018-11-16 | 青岛锐祥自动化设备有限公司 | A kind of bracket |
| CN110388224A (en) * | 2019-08-22 | 2019-10-29 | 国家能源集团宁夏煤业有限责任公司梅花井煤矿 | A kind of step type support system for arched tunnel driving |
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| CN116717290A (en) * | 2023-07-31 | 2023-09-08 | 窑街煤电集团有限公司 | Underground rock burst preventing device |
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| CN111456790B (en) | 2021-07-20 |
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