CN117468923A - Electromechanical equipment for coal mining - Google Patents

Electromechanical equipment for coal mining Download PDF

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Publication number
CN117468923A
CN117468923A CN202311418322.3A CN202311418322A CN117468923A CN 117468923 A CN117468923 A CN 117468923A CN 202311418322 A CN202311418322 A CN 202311418322A CN 117468923 A CN117468923 A CN 117468923A
Authority
CN
China
Prior art keywords
cutting
cutting head
gear
pushing
mounting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311418322.3A
Other languages
Chinese (zh)
Inventor
李国平
敖嫩
高征西
武利文
左玉山
云建军
李海东
戴涛杰
张志鹏
李明
白立兵
苗科
秦露青
佟卉
李雪娇
安艳丽
李杨
叶翔飞
高源�
徐嘉祺
高爽
李洪凯
吉瑞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inner Mongolia Autonomous Region Geological Survey Research Institute
Inner Mongolia University of Technology
Original Assignee
Inner Mongolia Autonomous Region Geological Survey Research Institute
Inner Mongolia University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inner Mongolia Autonomous Region Geological Survey Research Institute, Inner Mongolia University of Technology filed Critical Inner Mongolia Autonomous Region Geological Survey Research Institute
Priority to CN202311418322.3A priority Critical patent/CN117468923A/en
Publication of CN117468923A publication Critical patent/CN117468923A/en
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
    • E21C29/22—Propulsion of machines for slitting or completely freeing the mineral from the seam by wheels, endless tracks or the like
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
    • E21C31/02—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for cutting or breaking-down devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention discloses an electromechanical device for coal mining, which comprises: the cutting head is connected with the driving assembly through a driving shaft, and the driving assembly is connected with the cutting head through a driving shaft; the cutting head is rotationally arranged at the end part of the movable frame, the cutting head is driven by a cutting motor, a plurality of hollow mounting seats are arranged on the side wall of the cutting head, two cutting head mounting blocks are slidably arranged on each mounting seat and can slide along the radial direction of the cutting head, the two cutting head mounting blocks are used for mounting cutting teeth with different hardness, a gear shifting rotating shaft is further arranged in the cutting head, and a transmission component is arranged between the gear shifting rotating shaft and the cutting motor; the reversing driving assembly is arranged between the gear shifting rotating shaft and the cutting head mounting blocks, and can drive the two cutting head mounting blocks to reversely slide after acting along with the gear shifting assembly so as to achieve the aim of gear shifting; in combination, the coal mining excavating equipment disclosed by the invention achieves the effect of protecting the cutting teeth.

Description

Electromechanical equipment for coal mining
Technical Field
The invention belongs to the technical field of coal mine industry, and particularly relates to electromechanical equipment for coal mining.
Background
Along with the high-speed development of the coal and rock industry in China, the blasting and digging can not meet the current production requirements, and the heading machine becomes the main equipment for the current tunnel digging; the tunneling and the stoping are important production links in coal mine production, the rapid tunneling of a coal mine tunnel is a key technical measure for ensuring high and stable production of a coal mine, a tunneling machine is used in the tunneling exploitation of the coal mine, the tunneling machine is a comprehensive device for mechanically crushing rock, discharging slag and supporting and continuously operating, and the tunneling machine is divided into a full-face tunneling machine and a partial-face tunneling machine according to the cutting process of the tunneling machine on a working face and mainly comprises a travelling mechanism, a working mechanism, a loading mechanism and a transferring mechanism. As the travelling mechanism advances, the cutting head in the working mechanism breaks the rock and carries away the broken rock. The device has the advantages of safety, high efficiency, good roadway forming quality, high manufacturing cost, complex structure and high loss. The underground tunneling working environment of the coal mine is complex, the interference factors are numerous, and the hardness of the rock is randomly changed.
The whole machine of the traditional heading machine is mainly divided into: a cutting part, a shovel plate part, a first conveyor, a body part, a walking part, a rear supporting part and the like; and the cutting heads of the existing heading machine are mostly designed in an integrated mode.
In actual excavating, due to the fact that the hardness of mine rock is greatly changed, when a plurality of different rock strata are met, cutting teeth with different hardness are required to work, then the cutting teeth of the existing heading machine are inconvenient to replace, the working efficiency of equipment can be seriously affected by replacing a cutting head, and therefore the novel heading machine is developed.
Disclosure of Invention
The invention aims to provide coal mining electromechanical equipment and provides a heading machine capable of conveniently replacing cutting teeth with different hardness for excavation.
The development machine body is also provided with a movable frame;
the cutting head is rotationally arranged at the end part of the movable frame through a cutting motor, the cutting head is of a hollow conical structure, a plurality of hollow mounting seats are arranged on the side wall of the cutting head and are uniformly distributed along the circumferential direction of the cutting head, two cutting head mounting blocks are slidably arranged on each mounting seat and can slide along the radial direction of the cutting head, the two cutting head mounting blocks are used for mounting cutting teeth with different hardness, a gear shifting rotating shaft coaxial with the cutting head is also arranged inside the cutting head, and a transmission assembly is arranged between the gear shifting rotating shaft and the cutting motor;
the reverse driving assembly is arranged between the gear shifting rotating shaft and the cutting head mounting blocks, and can drive the two cutting head mounting blocks to reversely slide after the reverse driving assembly acts along with the gear shifting assembly, so that the gear shifting purpose is achieved.
The cutting head rotates to be arranged at the end part of the cutting motor output shaft, the end part of the cutting motor output shaft penetrates into the cutting head, the axis of the cutting motor output shaft is collinear with the axis of the gear shifting rotating shaft, the transmission assembly comprises a first crown gear arranged at the end part of the cutting motor output shaft, one end of the gear shifting rotating shaft, which is close to the first crown gear, is connected with a second crown gear through an electric telescopic rod, and the second crown gear is meshed with the first crown gear.
The mounting seats are uniformly provided with a plurality of groups along the axial direction of the body.
The reverse driving assembly comprises a transmission gear corresponding to each group of installation seats, a reversing gear meshed with each transmission gear and corresponding to each installation seat, a first pushing gear and a second pushing gear are further arranged between the installation seats and the reversing gears, the first pushing gear and the second pushing gear are meshed with each other, the first pushing gear is meshed with the reversing gears, so that the first pushing gear and the second pushing gear reversely rotate, linkage parts are further arranged on the first pushing gear and the second pushing gear respectively, and the two linkage parts are connected with corresponding cutting head installation blocks respectively.
The cutting tooth includes the cutting tooth body of being connected with the cutting head installation piece, and the cutting tooth body is the round platform body, and the one end that the cutting tooth body kept away from the cutting head installation piece is provided with the mounting groove, and the sliding is provided with the cutting edge of cone type in the mounting groove, still is provided with the promotion subassembly of being connected with the cutting edge in the hollow mount pad, can drive the cutting edge and slide in the mounting groove when promoting the subassembly during operation.
The pushing assembly comprises racks fixed on the side wall of each cutting head mounting block, a pushing gear meshed with the racks is further arranged in the hollow mounting seat, a third crank is arranged on the end face of the pushing gear, and the other end of the third crank penetrates through the cutting tooth body and then is connected with the cutting edge.
The lower terminal surface of cutting edge still is provided with the stock solution chamber, still is provided with the coolant liquid nozzle on the lateral wall in stock solution chamber, and the cutting head is inside to be provided with the coolant liquid storage box, communicates through the transfer line between every stock solution chamber and the coolant liquid storage box, still is provided with the transfer pump on every transfer line.
The control system of the heading machine body is respectively connected with the electric telescopic rod and the infusion pump.
The technical scheme adopted by the invention is that the coal mining electromechanical equipment comprises:
the beneficial effects of the invention are as follows:
according to the electromechanical device for coal mining disclosed by the invention, in the mining process, a worker feels that rock hardness changes according to experience, when cutting teeth with different hardness need to be replaced for mining, the worker can control the transmission assembly to drive the gear shifting rotating shaft connected with the cutting motor to rotate, then the gear shifting rotating shaft can drive the reverse driving assembly to act when rotating, and two mounting blocks of the two mounting cutting heads mounted on the same mounting seat can slide reversely, so that two cutting teeth with different hardness on the cutting heads can be switched, when the rock hardness is larger, one cutting tooth with larger hardness is pushed out for cutting, one cutting tooth with smaller hardness is retracted for standby, when the rock hardness is smaller, one cutting tooth with larger hardness is pushed out for cutting, and one cutting tooth with larger hardness is retracted for standby.
Drawings
FIG. 1 is a schematic diagram of a coal mining machine in accordance with the present invention;
FIG. 2 is a schematic illustration of the structure of a transmission assembly on a coal mining machine in accordance with the present invention;
FIG. 3 is a schematic view of the structure of a cutting head on a coal mining machine;
FIG. 4 is a cross-sectional view of a cutting head of an electromechanical device for coal mining in accordance with the present invention;
FIG. 5 is a schematic view of the installation of cutting teeth on a coal mining machine in accordance with the present invention;
in the figure, the heading machine body 1, the movable frame 3, the cutting head 4, the mounting seat 5, the cutting head mounting block 6, the cutting tooth 7, the gear shifting shaft 8, the cutting motor 9, the first crown gear 10, the second crown gear 11, the transmission gear 12, the reversing gear 13, the first pushing gear 14, the second pushing gear 15, the first crank 16, the second crank 17, the cutting tooth body 18, the cutting edge 19, the rack 20, the pushing gear 21, the third crank 22, the liquid storage cavity 23, the cooling liquid nozzle 24, the cooling liquid storage box 25, the liquid conveying pipe 26 and the electric telescopic rod.
Detailed Description
The invention will be described in detail below with reference to the drawings and the detailed description. The following examples are only for more clearly illustrating the technical solution of the present invention and are not to be construed as limiting the protection solution of the present invention.
Along with the high-speed development of the coal and rock industry in China, the blasting and digging can not meet the current production requirements, and the heading machine becomes the main equipment for the current tunnel digging; the tunneling and the stoping are important production links in coal mine production, the rapid tunneling of a coal mine tunnel is a key technical measure for ensuring high and stable production of a coal mine, a tunneling machine is used in the tunneling exploitation of the coal mine, the tunneling machine is a comprehensive device for mechanically crushing rock, discharging slag and supporting and continuously operating, and the tunneling machine is divided into a full-face tunneling machine and a partial-face tunneling machine according to the cutting process of the tunneling machine on a working face and mainly comprises a travelling mechanism, a working mechanism, a loading mechanism and a transferring mechanism. As the travelling mechanism advances, the cutting head in the working mechanism breaks the rock and carries away the broken rock. The device has the advantages of safety, high efficiency, good roadway forming quality, high manufacturing cost, complex structure and high loss. The underground tunneling working environment of the coal mine is complex, the interference factors are numerous, and the hardness of the rock is randomly changed.
The whole machine of the traditional heading machine is mainly divided into: a cutting part, a shovel plate part, a first conveyor, a body part, a walking part, a rear supporting part and the like; and the cutting heads of the existing heading machine are mostly designed in an integrated mode.
In practice, when the mine rock hardness is greatly changed, when the mine rock hardness is met, the cutting heads with different hardness are required to work, then the existing heading machine is designed in an integrated manner, and the cutting heads are inconvenient to replace, so that the working efficiency of equipment can be seriously affected by the replacement of the cutting heads.
The invention discloses an electromechanical device for coal mining, as shown in figures 1-4, comprising: the tunneling machine comprises a tunneling machine body 1, a cutting head 3 and a reverse driving assembly, wherein a movable frame 2 is further arranged on the tunneling machine body 1; the cutting head 3 is rotatably arranged at the end part of the movable frame 2, the movable frame 2 can adjust the tunneling angle of the tunneling machine, the cutting head 3 is driven by a cutting motor 8 arranged on the movable frame, namely, the tunneling machine can rotate and start working when the cutting motor 8 works; the cutting head 3 is of a hollow conical structure, a plurality of hollow mounting seats 4 are arranged on the side wall of the cutting head 3, the plurality of mounting seats 4 are uniformly distributed along the circumferential direction of the cutting head 3, two cutting head mounting blocks 5 are slidably arranged on each mounting seat, the cutting head mounting blocks 5 can slide along the radial direction of the cutting head 3, the two cutting head mounting blocks 5 are used for mounting cutting teeth 6 with different hardness, a gear shifting rotating shaft 7 coaxial with the cutting head is also arranged inside the cutting head 3, and a transmission assembly is arranged between the gear shifting rotating shaft 7 and a cutting motor 8; the reverse driving assembly is provided with a plurality of groups, and is respectively arranged between the gear shifting rotating shaft 7 and each mounting seat 4, and the reverse driving assembly is connected with the gear shifting rotating shaft 7 and then is connected with two cutting head mounting blocks 5 on the mounting seats 4, so that the gear shifting rotating shaft 7 can drive the two cutting head mounting blocks 5 to reversely slide after passing through the reverse driving assembly, and the gear shifting purpose is achieved.
Further, in order to achieve the purpose of shifting gears, as shown in fig. 2, the cutting head 3 is rotatably arranged at the end part of the output shaft of the cutting motor 8, the end part of the output shaft of the cutting motor 8 penetrates into the cutting head 3, the axis of the output shaft of the cutting motor 8 is collinear with the axis of the gear shifting rotating shaft 7, the transmission assembly comprises a first crown gear 9 arranged at the end part of the output shaft of the cutting motor 8, one end of the gear shifting rotating shaft 7, close to the first crown gear 9, is connected with a second crown gear 10 through an electric telescopic rod 26, and the second crown gear 10 is meshed with the first crown gear 9. Therefore, in the mining process, if a worker feels that the hardness of the rock changes and needs to replace cutting teeth with different hardness to perform mining, the worker can control the electronic telescopic rod 26 to stretch, so that the first crown gear 9 and the second crown gear 10 are meshed, then the cutting motor 8 drives the gear shifting rotating shaft 7 to rotate through the first crown gear 9 and the second crown gear 10, and finally, two cutting teeth 6 with different hardness on the cutting head 3 are switched, when the hardness of the rock is higher, one cutting tooth 6 with higher hardness is pushed out to perform cutting, and one cutting tooth 6 with lower hardness is retracted to perform standby.
Further, in order to ensure the tunneling efficiency of the tunneling machine, as shown in fig. 3-4, multiple groups of mounting seats 4 are uniformly arranged along the axial direction of the body 1, a reverse driving assembly is arranged between the gear shifting rotating shaft 7 and the cutting head mounting blocks 5 of each layer, meanwhile, in order to achieve the purpose of gear shifting when two cutting head mounting blocks 5 move reversely, the reverse driving assembly comprises a transmission gear 11 corresponding to each group of mounting seats 4, further comprises reversing gears 12 meshed with each transmission gear and corresponding to each mounting seat 4, a first pushing gear 13 and a second pushing gear 14 are further arranged between each mounting seat 4 and each reversing gear 12, the first pushing gear 13 and the second pushing gear 14 are meshed with each other, the first pushing gear 13 is meshed with the reversing gears 12, therefore, the first pushing gear 13 and the second pushing gear 14 are respectively provided with a linkage part, the two linkage parts are respectively connected with the corresponding cutting head mounting blocks 5, each linkage part comprises a first crank 15 hinged on the first pushing gear 13 and a second crank 15, and the other end of the first crank 15 passes through the second crank 4 and is connected with the other side wall of the second crank 4, and the second crank 14 passes through the other side wall of the second crank 4; in practice, other transmission forms such as gears can be adopted for the linkage parts for the purpose of linkage. In summary, it can be seen that when the gear shift shaft 7 rotates, the transmission gear 11 disposed on the gear shift shaft 7 is driven to rotate, then the transmission gear 11 drives the first pushing gear 13 to rotate through the reversing gear 12 meshed with the transmission gear 11, the first pushing gear 13 drives the second pushing gear 14 meshed with the first pushing gear 13 to rotate, finally, when the first pushing gear 13 and the second pushing gear 14 start to rotate due to the opposite rotation directions of the first pushing gear 13 and the second pushing gear 14, the first pushing gear 13 and the second pushing gear 14 respectively drive the two cutting head mounting blocks 5 through the first crank 15 and the second crank 16, and finally, the two cutting head mounting blocks 5 back to the motion, namely, one cutting head mounting block 5 and the cutting teeth 6 thereon move towards the direction approaching to the axis of the cutting head 3, and simultaneously, the other cutting head mounting block 5 and the cutting teeth 6 thereon move towards the direction far from the axis of the cutting head 3.
Further, as shown in fig. 5, in order to protect the inactive cutting tooth 6 after gear shifting, the cutting tooth 6 in the present application includes a cutting tooth body 17 connected with the cutting head mounting block 5, the cutting tooth body 17 is a truncated cone, one end of the cutting tooth body 17 away from the cutting head mounting block 5 is provided with a mounting groove, a conical cutting edge 18 is slidably arranged in the mounting groove, a pushing component connected with the cutting edge 18 is further arranged in the hollow mounting seat 4, and the cutting edge 18 can be driven to slide into and slide out of the mounting groove when the pushing component works. The concrete pushing assembly comprises a rack 19 fixed on the side wall of each cutting head mounting block 5, a pushing gear 20 meshed with the rack 19 is further arranged in the hollow mounting seat 4, a third crank 21 is arranged on the end face of the pushing gear 20, and the other end of the third crank 21 penetrates through the cutting tooth 17 and then is connected with the cutting edge 18. Therefore, when the cutting head mounting block 5 and the cutting teeth 6 on the cutting head mounting block move in a direction away from the axis of the cutting head 3, the rack 19 on the cutting head mounting block 5 drives the pushing gear 20 meshed with the rack to rotate, and finally the cutting edge 18 is driven to push out through the third crank 2 connected with the rack, so that the cutting teeth 6 can perform normal cutting; when the cutting head mounting block 5 and the cutting teeth 6 on the cutting head mounting block move towards the direction approaching to the axis of the cutting head 3, the rack 19 on the cutting head mounting block 5 drives the pushing gear 20 meshed with the rack to rotate, and finally the cutting edge 18 is driven to retract into the corresponding mounting groove through the third crank 2 connected with the rack, at the moment, the corresponding cutting teeth 6 cannot perform normal cutting, and the cutting edge 18 can be protected when the cutting edge 18 is retracted into the corresponding mounting groove.
Cutting tooth 6 can produce the high temperature in the course of the work to lead to drill bit wearing and tearing and damage, increase the coolant liquid at this moment and can reduce heat accumulation and reduce temperature effectively, and reduce wearing and tearing, extension cutting tooth 6 life because in this application cutting edge 18's lower terminal surface still is provided with stock solution chamber 22, still is provided with coolant liquid nozzle 23 on stock solution chamber 22's the lateral wall, 3 inside of cutting head be provided with coolant liquid storage box 24, communicate with transfer line 25 between every stock solution chamber 22 and the coolant liquid storage box 24, still be provided with the infusion pump on every transfer line 25. The control system of the heading machine body 1 is respectively connected with an electric telescopic rod 26 and an infusion pump. When the cutting blade 18 slides out of the mounting groove, the coolant nozzle 23 provided on the side wall of the cutting blade 18 is exposed, so that the coolant can be normally discharged at this time, and when the cutting blade 18 is retracted into the corresponding mounting groove, the side wall of the mounting groove is blocked by the coolant nozzle 23, so that the coolant cannot be normally discharged at this time.
In summary, in a specific mining process, when a worker feels that rock hardness changes according to experience and needs to replace cutting teeth with different hardness to excavate, the worker can control the transmission assembly to drive the gear shifting rotating shaft connected with the cutting motor to rotate, namely, the gear shifting rotating shaft can drive the reverse driving assembly to act when rotating, two mounting blocks of the cutting head mounted on the same mounting seat can slide reversely, finally, the cutting teeth with different hardness on the cutting head can be switched, when the rock hardness is larger, one cutting tooth with larger hardness is pushed out to cut, one cutting tooth with smaller hardness is pushed out to cut, one cutting tooth with larger hardness is retracted to reserve, and when the rock hardness is smaller, the coal mine mining electromechanical device disclosed by the invention can select proper cutting teeth to work according to the hardness of the rock to perform mining, so that abrasion of the cutting teeth can be effectively reduced, and frequent cutting teeth replacement is avoided.
The above embodiments are only preferred embodiments of the present invention, the protection scope of the present invention is not limited thereto, and any simple changes or equivalent substitutions of the obtained technical solutions within the technical scope of the present invention disclosed by the present invention will be apparent to those skilled in the art.

Claims (8)

1. A coal mining electromechanical device comprising: the development machine comprises a development machine body (1), wherein a movable frame (2) is further arranged on the development machine body (1), and the development machine is characterized by further comprising:
the cutting head (3) is rotationally arranged at the end part of the movable frame (2) through a cutting motor (8), the cutting head (3) is of a hollow conical structure, a plurality of hollow mounting seats (4) are arranged on the side wall of the cutting head (3), the mounting seats (4) are uniformly distributed along the circumferential direction of the cutting head (3), two cutting head mounting blocks (5) are slidably arranged on each mounting seat (4), the cutting head mounting blocks (5) can slide along the radial direction of the cutting head (3), the two cutting head mounting blocks (5) are used for mounting cutting teeth (6) with different hardness, a gear shifting rotating shaft (7) coaxial with the cutting head is further arranged in the cutting head (3), and a transmission assembly is arranged between the gear shifting rotating shaft (7) and the cutting motor (8);
reverse drive assembly is provided with the multiunit, sets up respectively shift pivot (7) and every install and sit (4) between, reverse drive assembly with shift pivot (7) connect the back still with install and sit two on (4) An Jiege first installation piece (5) are connected, consequently shift pivot (7) pass through behind the reverse drive assembly can drive two cutting head installation piece (5) carry out the reverse slip and thereby reach the purpose of shifting.
2. A coal mining electromechanical device according to claim 1, characterized in that the end of the output shaft of the cutting motor (8) extends into the interior of the cutting head (3), the axis of the output shaft of the cutting motor (8) is collinear with the axis of the gear shifting spindle (7), the transmission assembly comprises a first crown gear (9) arranged at the end of the output shaft of the cutting motor (8), one end of the gear shifting spindle (7) close to the first crown gear (9) is connected with a second crown gear (10) through an electric telescopic rod (26), and the second crown gear (10) is meshed with the first crown gear (9).
3. A coal mining machine electrical installation according to claim 2, wherein the mounting seats (4) are uniformly provided with a plurality of groups along the axial direction of the body (1).
4. A coal mining electromechanical device according to claim 3, characterized in that the back drive assembly comprises a transmission gear (11) arranged corresponding to each set of mounting seats (4), and further comprises a reversing gear (12) meshed with each transmission gear (11) and arranged corresponding to each mounting seat (4), a first pushing gear (13) and a second pushing gear (14) are further arranged between each mounting seat (4) and each reversing gear (12), the first pushing gear (13) and the second pushing gear (14) are meshed with each other, the first pushing gear (13) is further meshed with the reversing gear (12), so that the first pushing gear (13) and the second pushing gear (14) are in reverse rotation, and a linkage part is further arranged on each first pushing gear (13) and each second pushing gear (14), and the two linkage parts are respectively connected with the corresponding cutting head mounting blocks (5).
5. The coal mining electromechanical device according to claim 4, characterized in that the cutting teeth (6) comprise cutting teeth bodies (17) connected with the cutting head mounting blocks (5), the cutting teeth bodies (17) are truncated cones, mounting grooves are formed in one ends, far away from the cutting head mounting blocks (5), of the cutting teeth bodies (17), conical cutting edges (18) are slidably arranged in the mounting grooves, pushing components connected with the cutting edges (18) are further arranged in the hollow mounting base (4), and the cutting edges (18) can be driven to slide into and slide out of the mounting grooves when the pushing components work.
6. A coal mining electromechanical device according to claim 5, characterised in that the pushing assembly comprises a rack (19) fixed to a side wall of each cutter head mounting block (5), a pushing gear (20) meshed with the rack (19) is further arranged in the hollow mounting seat (4), a third crank (21) is arranged on an end face of the pushing gear (20), and the other end of the third crank (21) penetrates through the cutting tooth (17) and then is connected with the cutting blade (18).
7. The coal mining electromechanical device according to claim 5, characterized in that the lower section of the cutting blade (18) is further provided with a liquid storage cavity (22), the side wall of the liquid storage cavity (22) is further provided with a cooling liquid nozzle (23), the cutting head (3) is internally provided with a cooling liquid storage box (24), each liquid storage cavity (22) is communicated with a cooling liquid storage box (24) through a liquid delivery pipe (25), and each liquid delivery pipe (25) is further provided with a liquid delivery pump.
8. A coal mining machine electrical installation according to claim 7, characterized in that the control system of the heading machine body (1) is connected to the electric telescopic rod (26) and the infusion pump, respectively.
CN202311418322.3A 2023-10-30 2023-10-30 Electromechanical equipment for coal mining Pending CN117468923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311418322.3A CN117468923A (en) 2023-10-30 2023-10-30 Electromechanical equipment for coal mining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311418322.3A CN117468923A (en) 2023-10-30 2023-10-30 Electromechanical equipment for coal mining

Publications (1)

Publication Number Publication Date
CN117468923A true CN117468923A (en) 2024-01-30

Family

ID=89639013

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311418322.3A Pending CN117468923A (en) 2023-10-30 2023-10-30 Electromechanical equipment for coal mining

Country Status (1)

Country Link
CN (1) CN117468923A (en)

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