CN112647997A - Coal mining protection device based on digitization - Google Patents
Coal mining protection device based on digitization Download PDFInfo
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- CN112647997A CN112647997A CN202011524231.4A CN202011524231A CN112647997A CN 112647997 A CN112647997 A CN 112647997A CN 202011524231 A CN202011524231 A CN 202011524231A CN 112647997 A CN112647997 A CN 112647997A
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- telescopic rod
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- jacking
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- 238000005065 mining Methods 0.000 title claims abstract description 58
- 239000003245 coal Substances 0.000 title claims abstract description 41
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect 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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- Mining & Mineral Resources (AREA)
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- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention is suitable for the technical field of coal mining, and provides a coal mining protection device based on digitization, which comprises a base, wherein a rack rail is arranged in the base and comprises a horizontal section and an inclined section, and two ends of the horizontal section are respectively connected with the bottom ends of the two inclined sections; the rack rail is provided with a jacking anti-skidding assembly, the upper part of the base is rotatably connected with the top plate, and two sides of the base are provided with stable structures; the stabilizing structure comprises a first telescopic rod, the top end of the first telescopic rod is fixedly connected with a base, the bottom end of the first telescopic rod is sleeved with the top end of a second telescopic rod, a plurality of annular grooves are formed in the outer side of the top end of the second telescopic rod, and a plurality of bolt holes uniformly formed in the circumferential direction are formed in the bottom end of the first telescopic rod; the jacking antiskid assembly comprises a jacking assembly and an antiskid assembly. Therefore, the hydraulic support can work normally on any inclined plane conveniently, the applicability of the coal mining device is improved, the working stability and the coal mining efficiency of the coal mining device are improved, and the safety production of a working face is guaranteed.
Description
Technical Field
The invention relates to the technical field of coal mining, in particular to a coal mining protection device based on digitization.
Background
The hydraulic support is a structure used for controlling the mine pressure of the coal face. The mining face mine pressure acts on the hydraulic support in the form of external load.
In the coal mine excavation process, inclined mine roads need to be excavated so as to enter the mine bed, the support angle of the existing hydraulic support cannot be adjusted according to the inclination angle of the inclined plane, and if the existing hydraulic support is used on the inclined plane, the hydraulic support is unstable and is easy to topple.
When the mining device works on the inclined plane, the sliding is easy to occur, a supporting structure is needed to support the mining device, and the safety accidents caused by the sliding can be effectively prevented.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
Disclosure of Invention
Aiming at the defects, the invention aims to provide a coal mining protection device based on digitization, which is simple in structure and convenient to use, facilitates the normal work of a hydraulic support on any inclined plane, improves the applicability of the mining device, improves the working stability and coal mining efficiency of the mining device, and ensures the safe production of a working face.
In order to achieve the purpose, the invention provides a coal mining protection device based on digitization, which comprises a base, wherein a rack rail is arranged inside the base and comprises a horizontal section and an inclined section, and two ends of the horizontal section are respectively connected with the bottom ends of the two inclined sections; the rack rail is provided with a jacking anti-slip assembly, the upper part of the base is rotatably connected with the top plate, and two sides of the base are provided with stable structures.
The stabilizing structure comprises a first telescopic rod and a second telescopic rod, the top end of the first telescopic rod is fixedly connected with the base, the bottom end of the first telescopic rod is connected with the top end of the second telescopic rod in a sleeved mode, a plurality of annular grooves are formed in the outer side of the top end of the second telescopic rod, a plurality of bolt holes evenly formed in the bottom end of the first telescopic rod along the circumferential direction are formed in the bottom end of the first telescopic rod, and bolts matched with the annular grooves are connected in the bolt holes in a plugged mode.
The jacking anti-skid assembly comprises a jacking assembly and an anti-skid assembly; the jacking assembly comprises a jacking block, two ends of the lower part of the jacking block are respectively provided with a fixed block which enables the jacking block to be in an inverted U shape, a rotating shaft is rotatably connected between the two fixed blocks, a ratchet wheel and a gear meshed with the rack rail are fixedly connected to the rotating shaft between the two fixed blocks, one end of the rotating shaft is rotatably connected to one of the fixed blocks, and the other end of the rotating shaft penetrates through the other fixed block to be connected with a driving piece; the anti-skidding assembly comprises a cross beam connected with the bottom of the fixed block, the cross beam is fixedly connected with a first accommodating chamber, a limiting rod is arranged in the first accommodating chamber, one end of the limiting rod is a pawl, the pawl penetrates through the first accommodating chamber and then is matched with the ratchet wheel, the other end of the limiting rod penetrates through the lower portion of the first accommodating chamber and a wedge block inside the second accommodating chamber, the bottom of the wedge block is an inclined plane, and anti-skidding teeth movably meshed with the rack rail are arranged on the inclined plane.
According to the coal mining protection device based on digitization, the limiting rod comprises a pawl rod and a vertical rod sleeved with the pawl rod; one end of the pawl rod is a pawl, the pawl penetrates through the buffer port of the first accommodating chamber and then is matched with the ratchet wheel, and the other end of the pawl rod is provided with a handle; the top end of the vertical rod is provided with a turning head, one end of the pawl rod, which is provided with the handle, is sleeved in the turning head, and the turning head is provided with a limiting hole which can accommodate the handle.
According to the coal mining protection device based on digitization, the number of the bolt holes of the first telescopic rod is 2-4.
According to the coal mining protection device based on digitization, buckles used for clamping the stabilizing structure are further arranged on the two side walls of the jacking end of the base.
According to the coal mining protection device based on digitization, the inclined surface of the wedge block is parallel to the inclined surface of the inclined section of the rack rail.
According to the digital coal mining protection device, a second spring is arranged between the top of the wedge block and the inside of the top of the second containing chamber.
According to the coal mining protection device based on digitization, the bottom of the fixing block is provided with a groove, and two sides of the rack rail are provided with sliding rails matched with the groove for use.
According to the coal mining protection device based on digitization, a limiting plate is arranged at the top end of a base, a first pin shaft hole is formed in the limiting plate, and a second pin shaft hole corresponding to the first pin shaft hole is formed in a top plate.
According to the coal mining protection device based on digitization, notches are formed in the bottoms of the two ends, provided with the second pin shaft holes, of the top plate.
According to the coal mining protection device based on digitization, the lower portion of the buffer opening of the first containing chamber is provided with the first spring.
The invention aims to provide a coal mining protection device based on digitization, which can prevent a mining device from sliding off by arranging a stable structure, improve the working stability of the mining device, improve the coal mining efficiency and ensure the safe production of a working face; the hydraulic support can be safely and reliably adjusted to the horizontal position by arranging the jacking assembly, so that the hydraulic support can normally work on any inclined plane conveniently, and the applicability of the mining device is improved; through setting up anti-skidding subassembly, can guarantee that hydraulic support is stable always on the mining devices and is in the horizontality, work is more steady reliable. In conclusion, the beneficial effects of the invention are as follows: the normal work of the hydraulic support on any inclined plane is facilitated, the applicability of the mining device is improved, the working stability of the mining device is improved, the coal mining efficiency is improved, and the safety production of a working face is guaranteed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a rack track configuration;
FIG. 3 is a schematic view of the top plate construction;
FIG. 4 is a schematic structural diagram of a jacking antiskid assembly;
FIG. 5 is a schematic view of the structure of part B of FIG. 4;
FIG. 6 is a schematic view of the C-direction structure of FIG. 4;
FIG. 7 is a schematic view of a jacking assembly;
FIG. 8 is a schematic top view of the base;
FIG. 9 is a schematic view of the A-direction structure of FIG. 8;
FIG. 10 is a schematic view of the operation process of the stabilizing structure;
FIG. 11 is a schematic diagram of the working process of the present invention;
in the figure: 1-base, 2-jacking component, 21-jacking block, 211-fixed block; 22-gear, 23-ratchet, 24-shaft, 25-driving piece; 3-an anti-skid component, 31-a first accommodating chamber, 32-a second accommodating chamber, 33-a limiting rod, 331-a pawl rod, 332-a vertical rod, 333-a limiting hole, 334-a handle and 335-a turning head; 34-second spring, 35-wedge, 36-anti-slip tooth, 37-beam; 4-stable structure, 41-fixed ear, 42-buckle, 43-first telescopic rod, 431-bolt; 44-second telescopic rod, 441-annular groove; 45-fixing nails; 5-rack rail, 51-rack, 52-slide; 6-pin shaft, 61-limit plate; 7-top plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, the invention provides a coal mining protection device based on digitization, which comprises a base 1, wherein a rack rail 5 is arranged inside the base 1, a jacking anti-skidding assembly is arranged on the rack rail 5, the upper part of the base 1 is rotatably connected with a top plate 7 through a pin shaft 6, and stabilizing structures 4 are arranged on two sides of the base 1.
Referring to fig. 2 and 3, a rack rail 5 is arranged inside a base 1, the rack rail 5 comprises a horizontal section and an inclined section, two ends of the horizontal section are respectively connected with the bottom ends of the two inclined sections, a rack 51 is arranged on the rack rail 5, a jacking anti-skid component can move on the rack rail 5, the top end of the inclined section is a jacking end, two sides of the top end of the base 1, which are perpendicular to the jacking end, are respectively provided with a limiting plate 61, the limiting plate 61 is provided with a first pin shaft hole, a top plate 7 is provided with a second pin shaft hole corresponding to the first pin shaft hole, a pin shaft 6 movably connects the top plate 7 to the base 1 through the first pin shaft hole and the second pin shaft hole, and the limiting plate 61 can limit the top plate 7, referring to fig. 9, so that the top; preferably, roof 7 all is equipped with notch 71 in the both ends bottom that the second round pin shaft hole was equipped with, can make the jacking antiskid unit no matter drive any one end of roof 7 when rising, the other end can both free rotation, prevents to take place friction collision with base 1.
Referring to fig. 4-7, the jacking anti-skid assembly includes jacking assembly 2 and anti-skid assembly 3, jacking assembly 2 includes jacking block 21, fixed blocks 211 are respectively arranged at two ends of the lower part of jacking block 21, making jacking block 21 be the type of falling U, gear 22 and ratchet 23 are fixedly connected between two fixed blocks 211 through rotating shaft 24, gear 22 and ratchet 23 are fixedly connected with the same axle center, rotating shaft 24 one end is connected on one of fixed blocks 211 in a rotating manner, the other end of rotating shaft 24 runs through another fixed block 211 and is connected with driving piece 25, driving piece 25 can drive rotating shaft 24 to rotate, thereby drive gear 22 to rotate, make gear 22 drive jacking block 21 move along rack rail 5. Preferably, the drive member 25 is an electric motor.
Preferably, the bottom of fixed block 211 is equipped with the recess, and rack rail 5's both sides are equipped with the slide rail 52 that cooperatees and use with the recess, and slide rail 52 not only can provide the direction for jacking piece 21, makes its operation more steady, also can provide partly holding power for jacking piece 21 when carrying out jacking operation to roof 7, makes jacking subassembly 2 work more reliable and more stable.
The antiskid component 3 comprises a cross beam 37 connected with the bottom of the fixed block 211, the cross beam 37 is fixedly connected with a first accommodating chamber 31 positioned behind the ratchet wheel 23, a limiting rod 33 is arranged in the first accommodating chamber 31, the limiting rod 33 comprises a pawl rod 331 and a vertical rod 332 sleeved with the pawl rod 331, one end of the pawl rod 331 is a pawl, the pawl penetrates through a buffer port 311 of the first accommodating chamber 31 and then is matched with the ratchet wheel 23, a first spring 312 is arranged at the lower part of the buffer port 311 and can buffer the pawl rod 331, and a handle 334 is arranged at the other end of the pawl rod 331; the top end of the vertical rod 332 is provided with a crank head 335, one end of the pawl rod 331 with the handle 334 is sleeved in the crank head 335, the crank head 335 is provided with a limit hole 333 capable of accommodating the handle 334, and two holes are arranged in the limit hole 333; when the handle 334 is positioned in the right hole, the pawl rod 331 is driven to move rightwards to enable the pawl to be close to the ratchet wheel 23, and when the ratchet wheel 23 rotates reversely in the working process, the pawl can clamp the ratchet wheel 23 to prevent the ratchet wheel 23 from rotating reversely; when the handle 334 is located in the left hole, the pawl rod 331 is driven to move leftward, the pawl is separated from the ratchet wheel 23, and when the anti-slip jacking assembly needs to be reset, the ratchet wheel 23 rotates reversely and cannot be clamped by the pawl.
The bottom end of the vertical rod 332 penetrates through the lower part of the first accommodating chamber 31 to be connected with the wedge 35 inside the second accommodating chamber 32, the bottom of the wedge 35 is an inclined surface, and preferably, the inclined surface is parallel to the inclined surface of the inclined section of the rack rail 5, so that the wedge 35 does not collide and rub with the rack rail 5 on the inclined section of the rack rail 5 during anti-skid work; first accommodation chamber 31 is fixedly connected with second accommodation chamber 32, second spring 34 is arranged between the top of wedge 35 and the inside of the top of second accommodation chamber 32, and second spring 34 is used for assisting vertical rod 332 to fix wedge 35 and pulling wedge 35 to reset; the bottom of the wedge 35 is provided with anti-skid teeth 36 matched with the rack rail 5, when the gear 22 moves backwards, the ratchet wheel 23 moves backwards, the pawl is clamped with the ratchet wheel 23 at the moment, the ratchet wheel 23 presses the pawl to enable the whole limiting rod 33 to bear downward force, the limiting rod 33 presses the wedge 35 downwards until the anti-skid teeth 36 are meshed with the rack rail 5 to generate a reaction force perpendicular to the rack rail, the reaction force is transmitted to the pawl to enable the pawl to be matched with the ratchet wheel 23 more tightly, and therefore the ratchet wheel 23 can be prevented from moving backwards, and anti-skid effect is achieved.
Further, in order to enable the two ends of the top plate 7 to be jacked, no matter the coal mining surface inclines towards any side, the mining device can work, two jacking anti-skid assemblies are arranged, the running directions of the two jacking anti-skid assemblies are opposite, and the directions of the wedge blocks 35 and the ratchet wheels 23 of the two jacking anti-skid assemblies are opposite.
Referring to fig. 8 to 10, in order to prevent the base 1 from sliding on the working inclined plane, stabilizing structures 4 are disposed on two side walls of the jacking end of the base 1, the stabilizing structures 4 are fixed on the base 1 through two fixing lugs 41, each stabilizing structure 4 comprises a first telescopic rod 43 and a second telescopic rod 44, a bolt hole used in cooperation with the fixing lug 41 is disposed at the top end of the first telescopic rod 43, and the first telescopic rod 43 and the fixing lug 41 are fixed through bolts. The bottom end of the first telescopic rod 43 is sleeved with the top end of the second telescopic rod 44 (the diameter of the second telescopic rod 44 is smaller than that of the first telescopic rod 43). The outer side of the top end of the second telescopic rod 44 is provided with a plurality of annular grooves 441, the bottom end of the first telescopic rod 43 is provided with a plurality of bolt holes uniformly arranged along the circumferential direction, bolt holes 431 matched with the annular grooves are arranged on the bolt holes at the bottom end of the first telescopic rod 43, the first telescopic rod 43 and the second telescopic rod 44 are fixed by screwing the tip ends of the bolt 431 through the pipe wall of the first telescopic rod 43 and clamping the bolt ends into the annular grooves 441 of the second telescopic rod 44, when the second telescopic rod 44 needs to move up and down along the first telescopic rod 43, the bolt can be unscrewed, so that the telescopic function can be realized, when the length of the stable structure 4 needs to be adjusted, the annular grooves 441 at the proper positions of the second telescopic rod 44 are moved to the bolt holes and then fixed by screwing the bolt 431, the number of the bolt holes of the first telescopic rod 43 is 2-4, and the range can ensure that the, the strength of the opening of the first telescopic rod 43 can be ensured. A person skilled in the art can select a proper bolt hole number according to needs, and the invention selects 2 bolt holes.
Preferably, still be equipped with buckle 42 on the both sides wall of base 1 jacking end, buckle 42 is used for fixed stable structure 4, when need not use stable structure 4, can prevent stable structure 4 from rocking in buckle 42 with stable structure 4's lower part joint. Further, in order to make stable structure 4 more firm when carrying out anti-skidding work, the bottom of second telescopic link 44 is equipped with staple 45, and staple 45 can make stable structure 4 more convenient and fast's the underground of inserting, makes stable structure 4 more firm when carrying out anti-skidding work.
The working principle of the invention is as follows:
referring to fig. 11, when the coal face is an inclined face, the hydraulic support is placed on the upper portion of the top plate 7, the pin shaft 6 at one end to be jacked is pulled out, the driving member 25 is started to drive the jacking antiskid assembly to move upwards along the inclined section of the rack rail 5, the jacking block 21 drives one end of the top plate 7 to ascend until the top plate 7 is in a horizontal state and then stops, the hydraulic support is in a horizontal state at the moment and can work normally, then the handle 334 is placed in a hole at the right side of the limiting hole 333, the pawl rod 331 is close to the ratchet 23 to the right, when the ratchet 23 rotates backwards in the working process, the ratchet 23 presses the pawl, the whole limiting rod 33 is forced downwards, the limiting rod 33 presses the wedge 35 downwards until the antiskid teeth 36 are meshed with the rack rail 5 to generate a reaction force perpendicular to the rack rail, and the reaction force is transmitted to the pawl to enable the ratchet 23 to be matched more tightly, therefore, the ratchet wheel 23 can be prevented from backing up, the gear 22 is prevented from backing up and sliding down, the top plate 7 is stably and constantly in a horizontal state, then the stable structure 4 at one jacking end of the base 1 is taken out of the buckle 42 and opened, and the stable structure is inserted into the ground after being adjusted to a proper length, so that powerful guarantee is provided for the work of the mining device; when the mining device needs to be reset, the handle 334 is placed in the left hole of the limiting hole 333, the pawl rod 331 is far away from the ratchet wheel 23, the driving piece 25 is started to enable the driving piece to rotate reversely, the jacking anti-skid component is driven to move downwards along the inclined section of the rack rail 5, the top plate 7 is enabled to restore the original position, then the stabilizing structure 4 is pulled out and clamped into the buckle 42 after being contracted.
In conclusion, the stable structure can prevent the mining device from slipping off, so that the working stability of the mining device is improved, the coal mining efficiency is improved, and the safety production of a working face is ensured; the hydraulic support can be safely and reliably adjusted to the horizontal position by arranging the jacking assembly, so that the hydraulic support can normally work on any inclined plane conveniently, and the applicability of the mining device is improved; through setting up anti-skidding subassembly, can guarantee that hydraulic support is stable always on the mining devices and is in the horizontality, work is more steady reliable. The invention has the beneficial effects that: the normal work of the hydraulic support on any inclined plane is facilitated, the applicability of the mining device is improved, the working stability of the mining device is improved, the coal mining efficiency is improved, and the safety production of a working face is guaranteed.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The coal mining protection device based on digitization is characterized by comprising a base, wherein a rack rail is arranged inside the base and comprises a horizontal section and inclined sections, and two ends of the horizontal section are respectively connected with the bottom ends of the two inclined sections; the rack rail is provided with a jacking anti-skidding assembly, the upper part of the base is rotatably connected with the top plate, and two sides of the base are provided with stable structures;
the stabilizing structure comprises a first telescopic rod and a second telescopic rod, the top end of the first telescopic rod is fixedly connected with the base, the bottom end of the first telescopic rod is sleeved with the top end of the second telescopic rod, a plurality of annular grooves are formed in the outer side of the top end of the second telescopic rod, a plurality of bolt holes uniformly formed in the circumferential direction are formed in the bottom end of the first telescopic rod, and bolts matched with the annular grooves are inserted in the bolt holes;
the jacking anti-skid assembly comprises a jacking assembly and an anti-skid assembly;
the jacking assembly comprises a jacking block, two ends of the lower part of the jacking block are respectively provided with a fixed block which enables the jacking block to be in an inverted U shape, a rotating shaft is rotatably connected between the two fixed blocks, a ratchet wheel and a gear meshed with the rack rail are fixedly connected to the rotating shaft between the two fixed blocks, one end of the rotating shaft is rotatably connected to one of the fixed blocks, and the other end of the rotating shaft penetrates through the other fixed block to be connected with a driving piece;
the anti-skidding assembly comprises a cross beam connected with the bottom of the fixed block, the cross beam is fixedly connected with a first accommodating chamber, a limiting rod is arranged in the first accommodating chamber, one end of the limiting rod is a pawl, the pawl penetrates through the first accommodating chamber and then is matched with the ratchet wheel, the other end of the limiting rod penetrates through the lower portion of the first accommodating chamber and a wedge block inside the second accommodating chamber, the bottom of the wedge block is an inclined plane, and anti-skidding teeth movably meshed with the rack rail are arranged on the inclined plane.
2. The coal mining protection device based on digitization according to claim 1, wherein the limiting rod comprises a detent rod and a vertical rod sleeved with the detent rod; one end of the pawl rod is a pawl, the pawl penetrates through the buffer port of the first accommodating chamber and then is matched with the ratchet wheel, and the other end of the pawl rod is provided with a handle; the top end of the vertical rod is provided with a turning head, one end of the pawl rod, which is provided with the handle, is sleeved in the turning head, and the turning head is provided with a limiting hole which can accommodate the handle.
3. The digital coal mining protection device according to claim 1, wherein the number of bolt holes of the first telescopic rod is 2-4.
4. The digital coal mining protection device as claimed in claim 1, wherein two side walls of the jacking end of the base are provided with buckles for clamping the stabilizing structure.
5. The digitization-based coal mining protection device of claim 1, wherein the inclined surface of the wedge is parallel to the inclined surface of the inclined section of the rack rail.
6. The digital coal mining protection device as claimed in claim 1, wherein a second spring is disposed between a top of the wedge and an inside of a top of the second receiving chamber.
7. The digital coal mining protection device as claimed in claim 1, wherein a groove is formed in the bottom of the fixing block, and sliding rails matched with the groove are arranged on two sides of the rack rail.
8. The digital coal mining protection device according to claim 1, wherein a limiting plate is arranged at the top end of the base, a first pin shaft hole is formed in the limiting plate, and a second pin shaft hole corresponding to the first pin shaft hole is formed in the top plate.
9. The digitization-based coal mining protection device of claim 8, wherein the bottom of each end of the top plate where the second pin hole is located is provided with a notch.
10. The digital coal mining protection device according to claim 2, wherein a first spring is arranged at the lower part of the buffer opening of the first accommodating chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011524231.4A CN112647997B (en) | 2020-12-22 | 2020-12-22 | Coal mining protection device based on digitization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011524231.4A CN112647997B (en) | 2020-12-22 | 2020-12-22 | Coal mining protection device based on digitization |
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| CN112647997A true CN112647997A (en) | 2021-04-13 |
| CN112647997B CN112647997B (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011524231.4A Active CN112647997B (en) | 2020-12-22 | 2020-12-22 | Coal mining protection device based on digitization |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113928394A (en) * | 2021-12-16 | 2022-01-14 | 山东街景智能制造科技股份有限公司 | Product transfer device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562113A (en) * | 2012-03-15 | 2012-07-11 | 重庆市能源投资集团科技有限责任公司 | Anti-skidding structure of three-machine matched equipment for fully mechanized coal face of steep seam |
| CN109779666A (en) * | 2019-02-14 | 2019-05-21 | 重庆工程职业技术学院 | A kind of overturning-preventing safety type hydraulic support |
| CN111396044A (en) * | 2020-03-08 | 2020-07-10 | 崔超超 | Coal mining machine antiskid for coal mine |
-
2020
- 2020-12-22 CN CN202011524231.4A patent/CN112647997B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562113A (en) * | 2012-03-15 | 2012-07-11 | 重庆市能源投资集团科技有限责任公司 | Anti-skidding structure of three-machine matched equipment for fully mechanized coal face of steep seam |
| CN109779666A (en) * | 2019-02-14 | 2019-05-21 | 重庆工程职业技术学院 | A kind of overturning-preventing safety type hydraulic support |
| CN111396044A (en) * | 2020-03-08 | 2020-07-10 | 崔超超 | Coal mining machine antiskid for coal mine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113928394A (en) * | 2021-12-16 | 2022-01-14 | 山东街景智能制造科技股份有限公司 | Product transfer device |
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| CN112647997B (en) | 2022-05-13 |
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