CN110778346B - Protection device for mine roof fall - Google Patents
Protection device for mine roof fall Download PDFInfo
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- CN110778346B CN110778346B CN201911121762.6A CN201911121762A CN110778346B CN 110778346 B CN110778346 B CN 110778346B CN 201911121762 A CN201911121762 A CN 201911121762A CN 110778346 B CN110778346 B CN 110778346B
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- fixedly arranged
- cavity
- bevel gear
- bearing
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/002—Auxiliary devices in which the prop type is not essential
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
- E21D15/55—Details of the ends of props of prop heads or feet
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a protective device for mine roof fall, which comprises a machine body, wherein a bearing cavity 72 is arranged in the machine body 10, a bearing platform 11 is fixedly arranged at the lower side of the machine body 10, four cavities 69 with uniformly distributed circumferences are arranged at the outer side of the machine body 10, a weight supporting device 75 for supporting a heavy object is arranged in the bearing cavity 72, the weight supporting device can support a falling roof, and can bear the pressure of the roof on the device through a hydraulic cylinder, meanwhile, the device is fixed, can be kept in a stable state under the action of the pressure, cannot fall over and shares part of the pressure, can support the pressure of the mine roof by the bearing device, and can drill holes into the underground.
Description
Technical Field
The invention relates to the field of mine safety, in particular to a protection device used in mine roof fall.
Background
At present, with the development of society, roof fall is the phenomenon that in underground mining, upper part rock stratum naturally collapses, because after the mining, original balanced mine pressure suffers destruction and causes, roof fall accident root cause lies in the activity of mine pressure in the mining process and causes, takes place the deformation of different degrees in the mine pressure activity process of roof, the fracture appears along the roof joint at first, produces the absciss layer phenomenon, if the roof protection is improper, and the support quality is not good, and pressure continues to increase, and rock deformation exceeds elastic deformation limit, will appear fracture, collapse, rib spalling or local roof fall, and its harm that causes is personnel's injure, second property loss, third is environmental destruction.
Disclosure of Invention
The invention aims to provide a protection device for mine roof fall so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a protection device used when a mine roof fall occurs comprises a machine body, wherein a bearing cavity is arranged in the machine body, a bearing platform is fixedly arranged at the lower side of the machine body, four cavities with uniformly distributed circumferences are arranged at the outer side of the machine body, and a weight supporting device for supporting a heavy object is arranged in the bearing cavity;
the supporting device comprises a placing plate fixedly arranged on the lower side wall of the bearing cavity, a protective shell is fixedly arranged on the upper side surface of the placing plate, a main motor fixedly connected with the upper side surface of the placing plate is arranged in the protective shell, the main motor is in power connection with a motor spline shaft, a first bevel gear is fixedly arranged on the motor spline shaft, a second bevel gear is rotatably connected with the left side wall in the protective shell, a second bevel gear meshed with the first bevel gear is fixedly arranged on the right side of the second bevel gear, a first belt wheel fixedly connected with the second bevel gear is arranged on the left side of the second bevel gear, a large hydraulic cylinder is fixedly arranged on the upper side surface of the placing plate, a hydraulic rod is in power connection with the large hydraulic cylinder, a hydraulic plate is fixedly arranged on the upper side of the hydraulic rod, a hydraulic column is fixedly arranged on the upper side of the hydraulic plate, four support columns distributed in a circumferential array are fixedly arranged on the upper side face of the placing plate, and a support spring is connected between the placing plate and the weight supporting table;
the machine is characterized in that a transmission cavity is arranged in the bearing table, a drilling cavity is formed in the lower side of the transmission cavity, a bearing device for bearing weight is arranged in the transmission cavity, a bearing table is connected to the upper side of the machine body in a sliding mode, a belt wheel cavity is arranged in the bearing table, a communicated sliding cavity is formed in the upper side of the belt wheel cavity, and a stabilizing device for stabilizing a machine is arranged on the outer side of the machine body.
On the basis of the technical scheme, a cylindrical groove is arranged on the lower side of the weight-bearing table, the motor spline shaft extends upwards to penetrate through the protective shell to enter the cylindrical groove of the weight-bearing table, the motor spline shaft is rotatably connected with the lower side of the belt wheel cavity, a second belt wheel is fixedly arranged on the upper side of the motor spline shaft, the lower side wall of the belt wheel cavity is rotatably connected with a second wheel shaft, a second auxiliary wheel is fixedly arranged on the second wheel shaft, a second belt is connected between the second auxiliary wheel and the second belt wheel, a top block is slidably connected in the sliding cavity, a large spiral hole and a small spiral hole are formed in the top block, a large spiral rod which is spirally rotated with the top block in the large spiral hole is fixedly arranged on the upper side of the second wheel shaft, a spline screw rod is fixedly arranged on the upper side of the large spiral rod, and a spiral column block which can spirally rotate on the side wall of the small spiral hole is, and a large drill bit is fixedly arranged on the upper side of the spiral column block.
On the basis of the technical scheme, the stabilizing device comprises four connecting rods which are fixedly arranged on the lower side surface of the weight-bearing platform and distributed in a circumferential array manner, a compression spring connected between the weight-bearing platform and the placing plate is sleeved on the outer side of each connecting rod, the connecting rods extend downwards to penetrate through the placing plate and enter the cavities, the connecting rods can slide up and down in the placing plate, concave blocks are fixedly arranged on the lower sides of the connecting rods, rotating shafts are rotatably connected on the front side and the rear side of the cavities, connecting blocks are hinged on the rotating shafts, rotating shaft torsional springs are connected between the rotating shafts and the connecting blocks, supporting long rods are fixedly arranged on the connecting blocks, convex blocks are fixedly arranged on the lower sides of the supporting long rods, friction blocks are fixedly arranged on the upper sides of the supporting long rods, engaging blocks are fixedly arranged on the inner sides of the supporting long rods, and four lifting rods distributed in, and a lower conjunction block is fixedly arranged on the outer side of each lifting rod, and the upper conjunction block is matched with the lower conjunction block.
On the basis of the technical scheme, the bearing device comprises a first wheel shaft rotatably mounted on the right side wall of the transmission cavity, a first auxiliary wheel is fixedly arranged on the right side of the first wheel shaft, a third bevel gear is fixedly arranged on the left side of the first wheel shaft, a first belt is connected between the first auxiliary wheel and the first belt wheel, a fourth bevel gear shaft rotatably connected with the upper side wall of the transmission cavity is rotatably connected between the transmission cavity and the drilling cavity, a second gear meshed with the third bevel gear is fixedly arranged on the fourth bevel gear shaft, a first gear is fixedly arranged on the lower side of the fourth bevel gear shaft, symmetrical gear shafts are rotatably connected with the upper side wall of the drilling cavity, a spiral spring is fixedly arranged on each gear shaft, a fixed spline is fixedly arranged on the lower side of the spiral spring, a long spiral rod is rotatably connected with the fixed spline, and a fourth bevel gear is connected between the long spiral rod and the upper side wall of the drilling cavity, and a small drill bit is fixedly arranged on the lower side of the long screw rod.
In conclusion, the beneficial effects of the invention are as follows: this device can withstand the roof that drops when the roof fall accident takes place in the mine, prevent serious mine occurence of failure, prevent serious casualties, loss of property and environmental destruction, wherein hold in the palm the roof that the heavy device can withstand the drop, and make the device can bear the roof to the pressure of device through pneumatic cylinder wherein, fixing device simultaneously, stabilising arrangement can make this device keep stable state under the effect of pressure, can not topple over, and share partial pressure, bearing device can make this device support the pressure of mine roof, and the drilling gets into the underground, fixing device, the harm that causes when this device can effectively reduce the mine roof fall accident, reduce casualties and various losses, the safety factor when having increaseed the mine production.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic overall cross-sectional front view of a protection device for mine roof fall according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is an enlarged view of a portion of the present invention at B of FIG. 1;
fig. 4 is a partial enlarged view of the invention at C in fig. 1.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The invention will now be described in detail with reference to fig. 1-4, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
Referring to fig. 1-4, an embodiment of the present invention is shown: a protection device for mine roof fall comprises a machine body 10, wherein a bearing cavity 72 is arranged in the machine body 10, a bearing platform 11 is fixedly arranged on the lower side of the machine body 10, four cavities 69 with uniformly distributed circumferences are arranged on the outer side of the machine body 10, a weight supporting device 75 for supporting heavy objects is arranged in the bearing cavity 72, the weight supporting device 75 comprises a placing plate 14 fixedly arranged on the lower side wall of the bearing cavity 72, a protection shell 15 is fixedly arranged on the upper side surface of the placing plate 14, a main motor 16 fixedly connected with the upper side surface of the placing plate 14 is arranged in the protection shell 15, a motor spline shaft 17 is in power connection with the main motor 16, a first bevel gear 18 is fixedly arranged on the motor 17, a second bevel gear shaft 20 is rotatably connected to the inner left side wall of the protection shell 15, a second bevel gear 19 meshed with the first bevel gear 18 is fixedly arranged on the right side of the second bevel gear shaft 20, a first belt wheel 21 fixedly connected with the second bevel gear shaft 20 is arranged on the left side of the second bevel gear 19, a large hydraulic cylinder 23 is fixedly arranged on the upper side of the placing plate 14, a hydraulic rod 24 is in power connection with the large hydraulic cylinder 23, a hydraulic plate 25 is fixedly arranged on the upper side of the hydraulic rod 24, a hydraulic column 27 is fixedly arranged on the upper side of the hydraulic plate 25, a hydraulic spring 26 is connected between the supporting table 12 and the hydraulic plate 25, four supporting columns 28 distributed in a circumferential array are fixedly arranged on the upper side of the placing plate 14, a supporting spring 29 is connected between the placing plate 14 and the supporting table 12, a transmission cavity 70 is arranged in the bearing table 11, a drilling cavity 71 is arranged on the lower side of the transmission cavity 70, a bearing device 77 for bearing weight is arranged in the transmission cavity 70, the supporting table 12 is in sliding connection with the upper side of the machine body 10, a belt wheel cavity 74 is arranged in the supporting table 12, and a communicated sliding cavity, the machine body 10 is provided on the outside with a stabilizing device 76 for stabilizing the machine.
In addition, in one embodiment, a cylindrical groove is formed on the lower side of the weight bearing table 12, the motor spline shaft 17 extends upwards to penetrate through the protective shell 15 and enter the cylindrical groove of the weight bearing table 12, the motor spline shaft 17 is rotatably connected to the lower side of the pulley cavity 74, the second pulley 42 is fixedly arranged on the upper side of the motor spline shaft 17, the second pulley 45 is rotatably connected to the lower side wall of the pulley cavity 74, the second secondary pulley 44 is fixedly arranged on the second pulley 45, the second belt 43 is connected between the second secondary pulley 44 and the second pulley 42, the top block 13 is slidably connected in the sliding cavity 73, a large spiral hole 62 and a small spiral hole 63 are formed in the top block 13, a large rod 46 which is spirally rotated with the top block 13 in the large spiral hole 62 is fixedly arranged on the upper side of the second pulley 45, a spline screw 47 is fixedly arranged on the upper side of the large spiral rod 46, and a spiral column which is spirally rotated on the side wall of the small spiral hole 63 is slidably connected to the upper side of the spline 47 A large drill bit 49 is fixedly arranged on the upper side of the spiral column block 48, so that when a roof fall accident occurs in a mine, the falling roof is supported by the supporting platform 12, the main motor 16 is started to drive the motor spline shaft 17 to rotate, the first bevel gear 18, the second bevel gear 19 and the first belt pulley 21 are driven to rotate, the motor spline shaft 17 simultaneously drives the second belt pulley 42 to rotate, the second belt 43 drives the second auxiliary pulley 44 to rotate, the large spiral rod 46 is driven to rotate spirally relative to the top block 13, the top block 13 and the spline screw 47, the spiral column block 48 and the large drill bit 49 therein move upwards, the top block 13 supports against the roof, the spline screw 47 is driven to rotate by the large spiral rod 46, the large drill bit 49 and the large drill bit 49 rotate, the spiral column block 48 rotates spirally relative to the side wall of the small spiral hole 63, the spiral column block 48 and the large drill bit 49 move upwards, the large drill bit 49 rotates and rises to drill into the top plate, the device is fixed and kept vertical, meanwhile, the weight-bearing platform 12 is pressed downwards to contact the support column 28 and the hydraulic column 27, the support spring 29 and the hydraulic spring 26 buffer pressure, the instantaneous impact force is reduced, the large hydraulic cylinder 23 is started, the hydraulic rod 24, the hydraulic plate 25 and the hydraulic spring 26 are pushed upwards, and an upward force is applied to the weight-bearing platform 12 to prop against the falling top plate.
In addition, in one embodiment, the stabilizing device 76 includes four connecting rods 30 fixedly installed on the lower side of the supporting platform 12 in a circumferential array, a compression spring 31 connected between the supporting platform 12 and the placing plate 14 is sleeved on the outer side of each connecting rod 30, the connecting rods 30 extend downwards to penetrate through the placing plate 14 into the cavity 69, the connecting rods 30 can slide up and down in the placing plate 14, a concave block 32 is fixedly installed on the lower side of each connecting rod 30, a rotating shaft 33 is rotatably connected on the front and rear sides of the cavity 69, a connecting block 35 is hinged on the rotating shaft 33, a rotating shaft torsion spring 34 is connected between the rotating shaft 33 and the connecting block 35, a supporting long rod 37 is fixedly installed on the connecting block 35, a convex block 36 is fixedly installed on the lower side of the supporting long rod 37, a friction block 38 is fixedly installed on the upper side of the supporting long rod 37, an upper engaging block 39 is fixedly installed on the inner side of the, four lifting rods 41 distributed in a circumferential array are fixedly arranged on the outer side of the supporting platform 12, a lower conjunction block 40 is fixedly arranged on the outer side of each lifting rod 41, the upper conjunction block 39 is matched with the lower conjunction block 40, so that when the supporting platform 12 descends, the lifting rods 41 and the lower conjunction blocks 40 descend to enable the upper conjunction blocks 39 and the lower conjunction blocks 40 to be separated, the long supporting rods 37 rotate around the rotating shaft 33 under the torsional force of the rotating shaft torsion springs 34, the convex blocks 36 are matched with the concave blocks 32, the friction blocks 38 rotate downwards to contact the ground, meanwhile, the compression springs 31 are compressed, the compression springs 31 play a buffering role to enable the connecting rods 30 and the concave blocks 32 to descend in a delayed mode, the concave blocks 32 press the long supporting rods 37 downwards to enable the friction blocks 38 to press the ground, contact friction force is increased, and a stabilizing device is arranged, while part of the pressure can be shared.
In addition, in one embodiment, the load-bearing device 77 includes a first wheel shaft 51 rotatably mounted on the right side wall of the transmission chamber 70, a first auxiliary wheel 50 is fixedly mounted on the right side wall of the first wheel shaft 51, a third bevel gear 52 is fixedly mounted on the left side wall of the first wheel shaft 51, a first belt 22 is connected between the first auxiliary wheel 50 and the first belt wheel 21, a fourth bevel gear shaft 54 rotatably connected on the upper side wall of the transmission chamber 70 is rotatably connected between the transmission chamber 70 and the drill chamber 71, a second gear 55 engaged with the third bevel gear 52 is fixedly mounted on the fourth bevel gear shaft 54, a first gear 59 is fixedly mounted on the lower side of the fourth bevel gear shaft 54, symmetrical gear shafts 61 are rotatably connected on the upper side wall of the drill chamber 71, a helical spring 60 is fixedly mounted on each gear shaft 61, a fixed spline 56 is fixedly mounted on the lower side of the helical spring 60, a long helical rod 57 is rotatably connected in the fixed spline 56, a fourth bevel gear 53 is connected between the long spiral rod 57 and the upper side wall of the drilling cavity 71, a small drill 58 slidably connected with the fixed spline 56 is fixedly arranged on the lower side of the long spiral rod 57, so that when the top plate is supported by the supporting platform 12, the first belt 22 drives the first auxiliary wheel 50 and the first wheel shaft 51 to rotate, the first wheel shaft 51 drives the third bevel gear 52, the fourth bevel gear 53, the first gear 59 and the spiral spring 60 to rotate, the long spiral rod 57 rotates spirally and descends to drive the small drill 58 to descend, the fixed spline 56 drives the small drill 58 to rotate, and the small drill 58 drills downwards into the ground and is a stabilizing device.
When in an initial state, the upper conjunction block 39 hooks the lower conjunction block 40, the long support rod 37 is vertically arranged outside the machine body 10, the main motor 16 and the large hydraulic cylinder 23 are not started, the top block 13 is arranged in the bearing platform 12, and the large drill bit 49 is arranged in the top block 13.
When a roof fall accident occurs in a mine, the weight bearing table 12 supports a falling roof, the main motor 16 is started to drive the motor spline shaft 17 to rotate, the first bevel gear 18, the second bevel gear 19 and the first belt wheel 21 are driven to rotate, the motor spline shaft 17 simultaneously drives the second belt wheel 42 to rotate, the second belt 43 drives the second auxiliary wheel 44 to rotate, the large screw rod 46 is driven to rotate spirally relative to the top block 13, the top block 13 and the spline screw rod 47, the spiral column block 48 and the large drill 49 therein move upwards, the top block 13 supports against the roof, the spline screw rod 47 is driven by the large screw rod 46 to rotate, the large drill 49 and the large drill 49 rotate, the spiral column block 48 rotates spirally relative to the side wall of the small spiral hole 63, the spiral column block 48 and the large drill 49 move upwards, the large drill 49 rotates and rises to drill into the roof, so that the device is fixed and kept vertical, and simultaneously the weight bearing table 12 presses down to contact with the support column 28 and the hydraulic column 27, the supporting spring 29 and the hydraulic spring 26 buffer the pressure to reduce the instantaneous impact force, the large hydraulic cylinder 23 is started to push the hydraulic rod 24, the hydraulic plate 25 and the hydraulic spring 26 upwards to apply an upward force to the bearing platform 12 to prop against the falling top plate, when the bearing platform 12 descends, the lifting rod 41 and the lower engagement block 40 descend to separate the upper engagement block 39 from the lower engagement block 40, the supporting long rod 37 rotates around the rotating shaft 33 under the torsional force of the shaft torsion spring 34, the convex block 36 engages with the concave block 32, the friction block 38 rotates downwards to contact the ground, the compression spring 31 is compressed, the compression spring 31 plays a buffering role to delay the descending of the connecting rod 30 and the concave block 32, the concave block 32 presses the supporting long rod 37 downwards to press the friction block 38 to the ground to increase the contact friction force, the stabilizing device can share part of the pressure, when the bearing platform 12 supports the top plate, the first belt 22 drives the first auxiliary wheel 50 and the first wheel shaft 51 to rotate, the first wheel shaft 51 drives the third bevel gear 52, the fourth bevel gear 53, the first gear 59 and the spiral spring 60 to rotate, the long spiral rod 57 rotates spirally and descends to drive the small drill 58 to descend, meanwhile, the fixed spline 56 drives the small drill 58 to rotate, and the small drill 58 drills downwards into the ground to stabilize the device.
The invention has the beneficial effects that: this device can withstand the roof that drops when the roof fall accident takes place in the mine, prevent serious mine occurence of failure, prevent serious casualties, loss of property and environmental destruction, wherein hold in the palm the roof that the heavy device can withstand the drop, and make the device can bear the roof to the pressure of device through pneumatic cylinder wherein, fixing device simultaneously, stabilising arrangement can make this device keep stable state under the effect of pressure, can not topple over, and share partial pressure, bearing device can make this device support the pressure of mine roof, and the drilling gets into the underground, fixing device, the harm that causes when this device can effectively reduce the mine roof fall accident, reduce casualties and various losses, the safety factor when having increaseed the mine production.
The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.
Claims (4)
1. A protection device for mine roof fall, includes the organism, its characterized in that: the machine body is internally provided with a bearing cavity, a bearing platform is fixedly arranged at the lower side of the machine body, four cavities with uniformly distributed circumferences are arranged at the outer side of the machine body, and a weight supporting device for supporting a heavy object is arranged in the bearing cavity;
the supporting device comprises a placing plate fixedly arranged on the lower side wall of the bearing cavity, a protective shell is fixedly arranged on the upper side surface of the placing plate, a main motor fixedly connected with the upper side surface of the placing plate is arranged in the protective shell, the main motor is in power connection with a motor spline shaft, a first bevel gear is fixedly arranged on the motor spline shaft, a second bevel gear is rotatably connected with the left side wall in the protective shell, a second bevel gear meshed with the first bevel gear is fixedly arranged on the right side of the second bevel gear, a first belt wheel fixedly connected with the second bevel gear is arranged on the left side of the second bevel gear, a large hydraulic cylinder is fixedly arranged on the upper side surface of the placing plate, a hydraulic rod is in power connection with the large hydraulic cylinder, a hydraulic plate is fixedly arranged on the upper side of the hydraulic rod, a hydraulic column is fixedly arranged on the upper side of the hydraulic plate, four support columns distributed in a circumferential array are fixedly arranged on the upper side face of the placing plate, and a support spring is connected between the placing plate and the weight supporting table;
the machine is characterized in that a transmission cavity is arranged in the bearing table, a drilling cavity is formed in the lower side of the transmission cavity, a bearing device for bearing weight is arranged in the transmission cavity, a bearing table is connected to the upper side of the machine body in a sliding mode, a belt wheel cavity is arranged in the bearing table, a communicated sliding cavity is formed in the upper side of the belt wheel cavity, and a stabilizing device for stabilizing a machine is arranged on the outer side of the machine body.
2. A protective device for use in the event of a mine roof fall according to claim 1, wherein: a cylindrical groove is arranged at the lower side of the weight-bearing table, the motor spline shaft extends upwards to penetrate through the protective shell and enter the cylindrical groove of the weight-bearing table, the motor spline shaft is rotatably connected with the lower side of the belt wheel cavity, a second belt wheel is fixedly arranged on the upper side of the motor spline shaft, the lower side wall of the belt wheel cavity is rotationally connected with a second wheel shaft, a second auxiliary wheel is fixedly arranged on the second wheel shaft, a second belt is connected between the second auxiliary wheel and the second belt wheel, a top block is connected in the sliding cavity in a sliding manner, a large spiral hole and a small spiral hole are formed in the top block, a large spiral rod which is spirally rotated with the top block in the large spiral hole is fixedly arranged on the upper side of the second wheel shaft, the big hob upside has set firmly the spline screw rod, spline screw rod upside sliding connection have can little spiral hole lateral wall spiral pivoted spiral column piece, spiral column piece upside has set firmly big drill bit.
3. A protective device for use in the event of a mine roof fall according to claim 1, wherein: the stabilizing device comprises four connecting rods which are fixedly arranged on the lower side surface of the weight-bearing platform and distributed in a circumferential array, a compression spring connected between the weight-bearing platform and the placing plate is sleeved on the outer side of each connecting rod, the connecting rods extend downwards to penetrate through the placing plate and enter the cavity, the connecting rods can slide up and down in the placing plate, concave blocks are fixedly arranged on the lower sides of the connecting rods, rotating shafts are rotatably connected to the front side and the rear side of the cavity, connecting blocks are hinged to the rotating shafts, rotating shaft torsional springs are connected between the rotating shafts and the connecting blocks, supporting long rods are fixedly arranged on the connecting blocks, convex blocks are fixedly arranged on the lower sides of the supporting long rods, friction blocks are fixedly arranged on the upper sides of the supporting long rods, upper conjunction blocks are fixedly arranged on the inner sides of the supporting long rods, four lifting rods distributed in a circumferential array are fixedly arranged on the outer side of the weight-bearing, the upper fitting block is fitted with the lower fitting block.
4. A protective device for use in the event of a mine roof fall according to claim 1, wherein: the bearing device comprises a first wheel shaft rotatably arranged on the right side wall of the transmission cavity, a first auxiliary wheel is fixedly arranged on the right side of the first wheel shaft, a third bevel gear is fixedly arranged on the left side of the first wheel shaft, a first belt is connected between the first auxiliary wheel and the first belt wheel, a fourth bevel gear shaft rotatably connected with the upper side wall of the transmission cavity is rotatably connected between the transmission cavity and the drilling cavity, a second gear meshed with the third bevel gear is fixedly arranged on the fourth bevel gear shaft, a first gear is fixedly arranged on the lower side of the fourth bevel gear shaft, symmetrical gear shafts are rotatably connected with the upper side wall of the drilling cavity, a spiral spring is fixedly arranged on each gear shaft, a fixed spline is fixedly arranged on the lower side of the spiral spring, a long spiral rod is rotatably connected with the fixed spline, and a fourth bevel gear is connected between the long spiral rod and the upper side wall of the drilling cavity, and a small drill bit is fixedly arranged on the lower side of the long screw rod.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911121762.6A CN110778346B (en) | 2019-11-15 | 2019-11-15 | Protection device for mine roof fall |
| US16/799,815 US20200190980A1 (en) | 2019-11-15 | 2020-02-24 | Electromagnetic coil dispenser for improving waterproof performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911121762.6A CN110778346B (en) | 2019-11-15 | 2019-11-15 | Protection device for mine roof fall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110778346A CN110778346A (en) | 2020-02-11 |
| CN110778346B true CN110778346B (en) | 2020-07-03 |
Family
ID=69391511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911121762.6A Active CN110778346B (en) | 2019-11-15 | 2019-11-15 | Protection device for mine roof fall |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20200190980A1 (en) |
| CN (1) | CN110778346B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320390B (en) * | 2022-01-20 | 2023-06-16 | 山西路桥第八工程有限公司 | Collapse prevention device for expressway tunnel engineering |
| CN117231262B (en) * | 2023-11-10 | 2024-02-02 | 阳泉市广凯机械制造有限公司 | Mining roadway support device |
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|---|---|---|---|---|
| GB967163A (en) * | 1964-03-20 | 1964-08-19 | Coal Industry Patents Ltd | Improvements to advancing mine roof supports |
| CN2318397Y (en) * | 1997-11-21 | 1999-05-12 | 来和章 | Internal injection type single hydraulic support |
| AU2004309015A1 (en) * | 2003-12-27 | 2005-07-14 | Dbt Bergbau-Service Gmbh | Mine roof support frame comprising an excavating device with floor skids |
| CN106285752A (en) * | 2016-09-14 | 2017-01-04 | 安徽理工大学 | A kind of can the immediate support device of local directed complete set rigidity |
| CN209339989U (en) * | 2019-01-18 | 2019-09-03 | 洛阳龙门煤业有限公司 | A kind of coal mine driving suspension device with angle regulating function |
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2019
- 2019-11-15 CN CN201911121762.6A patent/CN110778346B/en active Active
-
2020
- 2020-02-24 US US16/799,815 patent/US20200190980A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB967163A (en) * | 1964-03-20 | 1964-08-19 | Coal Industry Patents Ltd | Improvements to advancing mine roof supports |
| CN2318397Y (en) * | 1997-11-21 | 1999-05-12 | 来和章 | Internal injection type single hydraulic support |
| AU2004309015A1 (en) * | 2003-12-27 | 2005-07-14 | Dbt Bergbau-Service Gmbh | Mine roof support frame comprising an excavating device with floor skids |
| CN106285752A (en) * | 2016-09-14 | 2017-01-04 | 安徽理工大学 | A kind of can the immediate support device of local directed complete set rigidity |
| CN209339989U (en) * | 2019-01-18 | 2019-09-03 | 洛阳龙门煤业有限公司 | A kind of coal mine driving suspension device with angle regulating function |
Also Published As
| Publication number | Publication date |
|---|---|
| US20200190980A1 (en) | 2020-06-18 |
| CN110778346A (en) | 2020-02-11 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200610 Address after: 835100 Xinjiang Uygur Autonomous Region Yili Kazak Autonomous Prefecture Yining County karayagaqi Township Xinjiang Ashi gold mine Applicant after: WEST HUANGJIN ILI Co.,Ltd. Address before: Room 101, No.1, Dongsan lane, Wanshou street, Huangpu District, Guangzhou City, Guangdong Province Applicant before: Guangzhou Liji mining equipment Co.,Ltd. |
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