CN111535804A

CN111535804A - Coal mining machine

Info

Publication number: CN111535804A
Application number: CN202010432745.0A
Authority: CN
Inventors: 练素霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-08-14

Abstract

The invention provides a coal mining machine, which comprises a crawler chassis, a cab and a drill rod, wherein the cab is fixedly connected at the left center position of the top of the crawler chassis, fixed plates are fixedly connected at the front end and the rear end of the right center position of the top of the crawler chassis, a dust suction pump and a water tank are respectively and fixedly connected at the front end and the rear end of the top of the crawler chassis between the fixed plates, a support plate is fixedly connected at the lower end of the right side of the crawler chassis, a rotary table is fixedly connected at the bottom of a cavity inside a connecting shaft and extends from the bottom output shaft of a second servo motor to the bottom of the connecting shaft, a stand column is connected at the left side of the bottom of the rotary table in a rotating manner, a first servo motor is fixedly connected at the right side of the connecting shaft, a gear is fixedly connected in a position-limiting box and is, the large coal blocks can not be directly crushed, and a large amount of dust is generated during coal mining.

Description

Coal mining machine

Technical Field

The invention relates to the technical field of coal mining machines, in particular to a coal mining machine.

Background

The coal mining machine is one of important devices for realizing mechanization and modernization of coal mine production, and the mechanical coal mining can reduce physical labor, improve safety and achieve the purposes of high yield, high efficiency and low consumption.

Coal resources have wide application as important energy in China, how to carry out efficient mining operation on the coal resources is the consideration of key research, and the prior coal mining machine has the following defects during coal mining: 1. dust can be generated during coal mining, the sight of workers is shielded, and the health of the workers is influenced.

2. When hard objects cannot be peeled off during coal mining, mechanical damage is easily caused when brute force is continuously used for peeling off, the maintenance time is long, the maintenance cost is high, and if a drill bit is pulled out and then the operation is conducted on a drilling area again, the time is consumed, and the working efficiency is low.

3. The existing coal mining machine can not simultaneously crush the stripped and fallen coal blocks during coal mining, and needs additional equipment for crushing, so that the working efficiency is reduced.

Disclosure of Invention

In order to solve the technical problems, the invention provides a coal mining machine to solve the problems described above.

The invention relates to a coal mining machine, which is achieved by the following specific technical means: a coal mining machine comprises a crawler chassis, a cab and a drill rod, wherein the cab is fixedly connected at the left central position of the top of the crawler chassis, fixed plates are fixedly connected at the front end and the rear end of the right central position of the top of the crawler chassis, the front end and the rear end of the top of the crawler chassis are respectively and fixedly connected between the fixed plates, a supporting plate is fixedly connected at the lower end of the right side of the crawler chassis, a hydraulic cylinder is fixedly connected to the right side of the inclined top of the supporting plate, a connecting shaft is hinged at the central position between the fixed plates, a cavity is arranged inside the connecting shaft, the bottom central position of the connecting shaft is hinged with the telescopic end of the hydraulic cylinder, a drill barrel assembly is movably connected at the right end of the connecting shaft, the drill rod is movably connected at the right, the upper end and the lower end of the right center of the drill rod are respectively provided with a through hole, the upper end and the lower end of the right side of the drill rod are respectively fixedly connected with a stripping hammer, the joint of the left side of the drill rod and the drill barrel assembly is arranged up and down, preceding, the equal fixedly connected with pinion rack in rear end, bore a section of thick bamboo subassembly left side fixedly connected with connecting cylinder, the spacing box of connecting cylinder upper end fixedly connected with, the connecting cylinder is located the inside upper end fixedly connected with ring gear of spacing box, spacing box right side fixedly connected with sprays the fill, connecting axle left side upper end fixedly connected with servo motor No. two, No. two servo motor bottom output shafts extend to the inside cavity bottom fixedly connected with carousel of connecting axle, carousel bottom left side has connect the stand, the connecting axle top is located No. two servo motor right side fixedly connected with servo motor, a servo motor right side center output shaft extends to the inside fixedly connected with gear of spacing box, gear and ring gear top meshing joint, fixedly connected with dust absorption hose between dust absorption pump and the connecting axle bottom.

Preferably, the connecting shaft is internally provided with a limiting ring fixedly connected between the upper end and the lower end of the right side of the turntable, the limiting ring is internally and hollow clamped with a mandril assembly, the top of the left side of the mandril assembly is fixedly connected with the bottom of the upright post, and the limiting ring is positioned at the center of the upper end and the lower end in the cavity of the connecting shaft.

Preferably, the drill cylinder assembly further comprises a drill cylinder, a first hollow circular groove, a first shaft seat, a through groove, a second hollow circular groove, a second shaft seat, a star frame and an inner gear ring, the center of the left side of the drill cylinder is provided with the first hollow circular groove, the first hollow circular groove is correspondingly communicated with the connecting cylinder, the center of the right side of the drill cylinder is provided with the second hollow circular groove, the through groove is arranged between the first hollow circular groove and the second hollow circular groove, the first shaft seat is fixedly connected in the first hollow circular groove, the second shaft seat is fixedly connected in the second hollow circular groove, the inner gear ring is fixedly connected between the upper end and the lower end of the right side of the second shaft seat in the second hollow circular groove, the outer end of the right side of the second shaft seat is fixedly connected with a planet carrier at equal intervals, the circular grooves are arranged in the center of the planet carrier, the outer end of the right side of the planet carrier is sequentially connected with planet gears, the planet gears are positioned, The central position of the planet carrier is fixedly connected with the hollow position in the second shaft seat, the upper end of the drill rod in the inner gear ring is fixedly connected with a sun gear, the sun gear is in meshing clamping connection with the planet gear, and the tail end of the right side of the connecting shaft is fixedly connected with the hollow position in the first shaft seat.

Preferably, the first hollow circular groove, the through groove and the second hollow circular groove are correspondingly communicated.

Preferably, the ejector rod assembly further comprises an ejector rod, helical blades and an ejector hammer, the right side of the ejector rod extends through the first hollow circular groove, the through groove, the second hollow circular groove and the drill rod, the upper end and the lower end of the ejector hammer are fixedly connected with the upper end of the ejector rod, the ejector rod is located in the drill rod, the upper end of the ejector rod is fixedly connected with the helical blades from left to right in sequence, the ejector hammer corresponds to the hollow portion of the first through hole in a clamping mode, and the ejector hammer is located in the inner upper end of the.

Preferably, the spraying hopper is hopper-shaped, the spraying hopper is internally annular and hollow, the opening faces one side of the drill barrel assembly, spray holes are sequentially formed in the upper end of the opening at equal intervals, a cross net is arranged in each spray hole, a flexible hose is fixedly connected between the top of the water tank and the spraying hopper, and a water pump is installed in the water tank.

Preferably, broken subassembly is still including connecting rod, metal ball, crushing tooth, and connecting rod top fixedly connected with metal ball is located the connecting rod upper end slope setting of boring a section of thick bamboo upper end right, is located the connecting rod lower extreme slope setting of boring a section of thick bamboo lower extreme right, and the connecting rod is close to drilling rod one side fixedly connected with crushing tooth, smashes the tooth and increases progressively from a left side to right length, smashes the tooth and corresponds the setting with the pinion rack gap.

Preferably, the spiral cutter body assembly further comprises a spiral strip, a spiral cutter body and a second through hole, the drill rod is fixedly connected with the spiral strip at the upper end of the right side of the toothed plate, the spiral cutter body is fixedly connected with the center of the upper end of the spiral strip, the second through hole is formed in the two sides of the spiral cutter body at the upper end of the spiral strip, and the second through hole is communicated with the inside of the drill rod.

Preferably, the drill bit assembly further comprises a cross drill cutter and a tip hammer, and the tip hammer is fixedly connected to the center of the front side of the cross drill cutter.

Preferably, the top of the stripping hammer is a spheroid, the top of the spheroid is fixedly connected with a plurality of pickaxe-shaped cutting bit heads, the stripping hammer is arranged at the upper end of the drill rod and is inclined towards the upper right end, and the stripping hammer is arranged at the lower end of the drill rod and is inclined towards the lower right end.

Has the advantages that:

1. the first servo motor drives the gear ring to rotate, the gear ring drives the drilling barrel assembly to rotate, the drilling barrel assembly drives the inner gear ring to rotate, the inner gear ring drives the planetary gear to rotate, the planetary gear drives the sun gear to rotate, so that the drill rod relatively rotates opposite to the drilling barrel, the drill rod drives the stripping hammer and the drill bit assembly to drill and strip a coal seam, after the dust suction pump is started, raised dust can be sucked through the second through hole at the upper end of the screw strip, meanwhile, the dust enters the drill rod, the ejector rod assembly is in a static state, so that the ejector rod and the helical blade and the drill rod generate relative motion, and meanwhile, the dust suction pump is matched, so that the dust is quickly conveyed into the connecting shaft through the helical blade, the dust is sucked out through the dust suction hose and is treated, the dust is not easy to block the drill rod, the drilling barrel and the inside the connecting shaft, can start the water pump in the water tank, the water pump draws water and gets into the spray hopper through expansion hose, encircles the spray hopper blowout through the orifice, forms the water curtain and covers a brill section of thick bamboo subassembly and drilling rod to make the dust descend more easily, spray the coal piece that the hopper still can shelter from splashing simultaneously, be difficult for causing mechanical damage, guaranteed staff's safety.

2. After a servo motor starts, form relative rotation between bore a subassembly and the drilling rod, coal passes through the spiral strip and carries to drilling rod left side one end after, can be with the bold coal cinder breakage piecemeal through crushing tooth and pinion rack's combined action for peel off the bold coal cinder and can break into the piecemeal fast, improved work efficiency.

3. When a drill barrel assembly and a drill rod stop working due to a hard and thick coal seam, a first servo motor can be turned off, a second servo motor is started, the second servo motor drives a turntable to rotate, the turntable drives an upright post to rotate, the upright post pushes an ejector rod to move back and forth in a limiting ring, a top hammer at one end of the right side can strike the thick coal seam after being ejected out of a through hole by the ejector rod, the thick coal seam is broken by repeated reciprocating knocking, then the first servo motor is started, the drill barrel assembly and the drill rod break and peel the broken thick coal seam, the problem that a drill bit of a coal mining machine is easily damaged due to the thick coal seam is solved, and meanwhile, the working efficiency is improved

Drawings

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

FIG. 2 is a schematic view of the structure of the drill cylinder of the present invention.

Fig. 3 is a schematic view of the structure of the drill rod of the present invention.

FIG. 4 is a schematic cross-sectional view of the drill cylinder of the present invention.

FIG. 5 is a right side view of the inner ring gear of the present invention.

FIG. 6 is an enlarged schematic view of a portion A of the drawings.

In fig. 1 to 6, the correspondence between the component names and the reference numbers is:

the device comprises a crawler chassis 1, a cab 2, a fixing plate 3, a water tank 4, a telescopic hose 5, a first servo motor 6, a connecting shaft 7, a limit box 8, a spraying bucket 9, spray holes 901, a dust suction pump 10, a supporting plate 11, a hydraulic cylinder 12, a drill barrel assembly 13, a drill barrel 1301, a first hollow circular groove 1302, a first shaft seat 1303, a gear ring 1304, a through groove 1305, a second hollow circular groove 1306, a second shaft seat 1307, a star-shaped frame 1308, an inner toothed ring 1309, a drill rod 14, a sun gear 1401, a crushing assembly 15, a connecting rod 1501, a metal ball 1502, a crushing toothed plate 1503, a toothed plate 16, a stripping hammer 17, a drill bit assembly 18, a cross drill 1801, a pointed hammer 1802, a mandril assembly 19, a mandril 1901, a helical blade 1902, a top hammer 1903, a first through hole 20, a helical cutter body assembly 21, a helical strip 2101, a helical cutter body 2102, a second through hole 2103, a planetary gear 22, a second servo motor 23, a turntable 24, a connecting cylinder 27.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Example (b):

as shown in figures 1 to 6: a coal mining machine comprises a crawler chassis 1, a cab 2 and a drill rod 14, wherein the cab 2 is fixedly connected at the left central position of the top of the crawler chassis 1, fixing plates 3 are fixedly connected at the front and rear ends of the central position of the right side of the top of the crawler chassis 1, a dust suction pump 10 and a water tank 4 are respectively and fixedly connected at the front and rear ends of the top of the crawler chassis 1 between the fixing plates 3, a support plate 11 is fixedly connected at the lower end of the right side of the crawler chassis 1, a hydraulic cylinder 12 is fixedly connected at the top of the support plate 11 in an inclined right direction, a connecting shaft 7 is hinged at the central position between the fixing plates 3, a cavity is arranged inside the connecting shaft 7, the central position of the bottom of the connecting shaft 7 is hinged with the telescopic end of the hydraulic cylinder 12, a drill barrel assembly 13 is movably connected at the right end of the, a drill bit assembly 18 is fixedly connected at the center position of the right side of a drill rod 14, a first through hole 20 is respectively arranged at the upper end and the lower end of the center position of the right side of the drill rod 14, a stripping hammer 17 is fixedly connected at the upper end and the lower end of the right side of the drill rod 14, toothed plates 16 are fixedly connected at the upper end, the lower end, the front end and the rear end of the joint of the left side of the drill rod 14 and a drill cylinder assembly 13, a connecting cylinder 27 is fixedly connected at the left side of the drill cylinder assembly 13, a limiting box 8 is fixedly connected at the upper end of the connecting cylinder 27, a gear ring 1304 is fixedly connected at the upper end of the connecting cylinder 27 in the limiting box 8, a spraying hopper 9 is fixedly connected at the right side of the limiting box 8, a second servo motor 23 is fixedly connected at the upper end of the left side of a connecting shaft 7, a rotary table 24 is fixedly connected, no. one servo motor 6 right side center output shaft extends to fixedly connected with gear in the spacing box 8, gear and ring gear 1304 top meshing joint, fixedly connected with dust absorption hose between dust absorption pump 10 and the connecting axle 7 bottom.

Wherein: connecting axle 7 is inside to be located fixedly connected with spacing ring 25 between the upper and lower extreme on carousel 24 right side, the inside cavity joint of spacing ring 25 has ejector pin subassembly 19, ejector pin subassembly 19 left side top and stand 26 bottom fixed connection, spacing ring 25 is located connecting axle 7 cavity upper and lower extreme central point and puts, start No. two servo motor 23, No. two servo motor 23 drive carousel 24 rotates, carousel 24 drives stand 26 rotation in-process, the stand is reciprocal to promote ejector pin 19 to make ejector pin 19 control reciprocating motion in spacing ring 25.

Wherein: the drill barrel assembly 13 further comprises a drill barrel 1301, a first hollow circular groove 1302, a first shaft seat 1303, a through groove 1305, a second hollow circular groove 1306, a second shaft seat 1307, a star-shaped frame 1308 and an inner gear ring 1309, wherein the first hollow circular groove 1302 is arranged at the center of the left side of the drill barrel 1301, the first hollow circular groove 1302 is correspondingly communicated with the connecting barrel 27, the second hollow circular groove 1306 is arranged at the center of the right side of the drill barrel 1301, the through groove 1305 is arranged between the first hollow circular groove 1302 and the second hollow circular groove 1306, the first shaft seat 1303 is fixedly connected in the first hollow circular groove 1302, the second shaft seat 1307 is fixedly connected in the second hollow circular groove 1306, the inner gear ring 1309 is fixedly connected between the upper end and the lower end of the right side of the second shaft seat 1307 in the second hollow circular groove 1306, the outer end of the right side of the second shaft seat 1307 is fixedly connected with a planet carrier 1308, the circular groove is arranged at the center of the planet carrier 1308, planet gears 22 are sequentially and are equidistantly switched on the outer end of the right side of the planet carrier 1308, the left side of a drill rod 14 extends through an inner gear ring 1309, the central position of a planet carrier 1308 is fixedly connected with the hollow position in a second shaft seat 1307, the upper end of the drill rod 14 positioned in an inner gear ring 19 is fixedly connected with a sun gear 1401, the sun gear 1401 is meshed and clamped with a planet gear 22, the right end of a connecting shaft 7 is fixedly connected with the hollow position in a first shaft seat 1303, after a first servo motor 6 is started, a gear ring 1304 is driven to rotate, the gear ring 1304 drives a drill barrel assembly 13 to rotate, the drill barrel assembly 13 rotates to drive the inner gear ring 1309 to rotate, the inner gear ring 1309 drives a planet gear 22 to rotate, the planet gear 22 drives the sun gear 1401 to rotate, so that the drill rod 14 rotates oppositely to a drill barrel 1301, the drill rod 14 drives a stripping hammer 17 and a drill bit assembly 18 to drill and strip a deep coal seam, the drill barrel assembly 13 drives a crushing assembly 15 to crush, the working efficiency is improved.

Wherein: the first hollow circular groove 1302, the through groove 1305 and the second hollow circular groove 1306 are correspondingly communicated.

Wherein: the push rod assembly 19 further comprises a push rod 1901, a helical blade 1902 and a top hammer 1903, the right side of the push rod 1901 extends through the first hollow circular groove 1302, the through groove 1305, the second hollow circular groove 1306 to the upper end and the lower end of the right side in the drill rod 14, the top hammer 1903 is fixedly connected with the top hammer 1903, the push rod 1901 is positioned at the upper end in the drill rod 14, the helical blade 1902 is fixedly connected with the drill rod 14 from left to right in sequence, the top hammer 1903 is in hollow corresponding clamping connection with the first through hole 20, the top hammer 1903 is positioned at the upper end in the drill rod 14, when the drill barrel assembly 13 and the drill rod 14 stop working due to a hard and thick coal seam, the first servo motor 6 can be closed, then the second servo motor 23 is started, the second servo motor 23 drives the rotary table 24 to rotate, the rotary table 24 drives the stand column 26 to rotate, the stand column 26 pushes the push rod 1901 to move back and forth in the, the thick coal seam area is broken through repeated reciprocating knocking, and then the first servo motor 6 is started, so that the drill barrel assembly 13 and the drill rod 14 break and strip the broken thick coal seam, the problem that a drill bit of a coal mining machine is damaged easily due to the thick coal seam is solved, and meanwhile the working efficiency is improved.

Wherein: spray fill 9 and be hourglass hopper-shaped, spray fill 9 inside is annular cavity form, the opening is towards drill barrel subassembly 13 one side, opening part upper end equidistance is equipped with orifice 901 in proper order, be equipped with the cross net in the orifice 901, fixedly connected with expansion hose 5 between 4 tops of water tank and the spray fill 9, install the water pump in the water tank 4, when the dust is very much, start the water pump in the water tank 4, the water pump draws water and gets into spray fill 9 through expansion hose 5, encircle spray fill 9 blowout through orifice 901, form the water curtain and cover drill barrel subassembly 13 and drilling rod 14, thereby make the dust descend more easily, spray fill 9 still can shelter from the coal cinder that splashes simultaneously, be difficult for causing mechanical damage, staff's safety has been guaranteed.

Wherein: the crushing assembly 15 further comprises a connecting rod 1501, a metal ball 1502 and crushing teeth 1503, the top of the connecting rod 1501 is fixedly connected with the metal ball 1502, the connecting rod 1501 at the upper end of the drilling cylinder 1301 is obliquely arranged towards the upper right end, the connecting rod 1501 at the lower end of the drilling cylinder 1301 is obliquely arranged towards the lower right end, one side of the connecting rod 1501 close to the drill rod 14 is fixedly connected with the crushing teeth 1503, the lengths of the crushing teeth 1503 are sequentially increased from left to right, gaps between the crushing teeth 1503 and the toothed plate 16 are correspondingly arranged, after the first servo motor 6 is started to work, the drilling cylinder assembly 13 and the drill rod 14, meanwhile, the crushing teeth 1503 and the toothed plate 16 also generate relative movement, and after the large coal which is stripped and conveyed by the spiral cutter body assembly 21 enters the areas of the crushing teeth 1503 and the toothed plate 16, the big coal is crushed into small blocks under the combined action of the crushing teeth 1503 and the toothed plate 16, so that the big coal blocks are not required to be crushed in the later period, and the working efficiency is improved.

Wherein: the spiral cutter body assembly 21 further comprises a spiral strip 2101, a spiral cutter body 2102 and a second through hole 2103, the upper end of the drill rod 14, which is positioned at the right side of the toothed plate 16, is fixedly connected with the spiral strip 2101, the center position of the upper end of the spiral strip 2101 is fixedly connected with the spiral cutter body 2102, the upper end of the spiral strip 2101 is positioned at two sides of the spiral cutter body 2102 and is provided with the second through hole 2103, the second through hole 2103 is communicated with the inside of the drill rod 14, the spiral cutter body 2102 can strip off a coal bed, the spiral strip 2101 can convey the stripped coal blocks, the coal blocks are conveyed to the outside and are not easy to cause the blockage of a coal drilling position, meanwhile, large coal blocks can be broken by conveying the toothed plate 16, the second cylinder hole 2103 can suck dust into the drill rod 14 under the action of the dust suction pump 10, the ejector rod assembly 19 is in a static state, so that the ejector rod 1901 and the spiral blade 1902 and the drill rod 14, through the suction treatment of the dust suction hose, dust is not easy to block the drill rod 14, the drill barrel 1301 and the connecting shaft 7, so that the dust is not easy to fly away to block the sight and damage the health of workers.

Wherein: the drill bit assembly 18 further comprises a cross drill cutter 1801 and a pointed hammer 1802, wherein the pointed hammer 1802 is fixedly connected to the center of the front side of the cross drill cutter 1801, so that the coal seam can be more quickly crushed and stripped.

Wherein: the top of the stripping hammer 17 is a spheroid, the top of the spheroid is fixedly connected with a plurality of pickaxe-shaped cutting pick tool bits, the stripping hammer 17 is arranged at the upper end of the drill rod 14 and obliquely arranged towards the upper right end, the lower end of the drill rod 14 and obliquely arranged towards the lower right end, the coverage area is wider, and the stripping effect is good.

Wherein: power supply equipment is arranged at the top of the crawler chassis 1, the first servo motor 6, the second servo motor 23, the water pump, the dust suction pump 10 and the hydraulic cylinder 12 are all connected with the power supply equipment, and a power supply equipment controller is installed in the cab 2.

The working principle is as follows: firstly, a worker drives a coal mining machine in a cab 2, moves through a crawler chassis 1, adjusts the height of a connecting shaft 7 through a starting hydraulic cylinder 12, so that a drill bit assembly 18 at one end of a drill rod 14 is in contact with a coal seam at a coal mining position, then a first servo motor 6 is started, the driver slowly drives the coal mining machine to move forward, the first servo motor 6 drives a gear ring 1304 to rotate, the gear ring 1304 drives a drill barrel assembly 13 to rotate, the drill barrel assembly 13 rotates to drive an inner toothed ring 1309 to rotate, the inner toothed ring 1309 drives a planetary gear 22 to rotate, the planetary gear 22 drives a sun gear 1401 to rotate, so that the drill rod 14 rotates in a reverse direction relative to a drill barrel 1301, the drill rod 14 drives a stripping hammer 17 and the drill bit assembly 18 to drill and strip a deep coal seam, meanwhile, a spiral cutter body assembly 21 strips and conveys the coal seam, the stripped coal seam is conveyed to the outer side, and a large coal, the coal dust can be crushed into small pieces under the combined action of the relative rotation of the crushing teeth 1503 and the toothed plate 16, the drill barrel assembly 13 drives the crushing assembly 15 to crush and strip a shallow coal seam, the dust suction pump 10 is started at the same time, the second barrel hole 2103 can suck dust into the drill rod 14 under the action of the dust suction pump 10, the ejector rod assembly 19 is in a static state, the ejector rod 1901, the helical blade 1902 and the drill rod 14 move relatively, the dust suction pump 10 is matched at the same time, the dust is rapidly conveyed into the connecting shaft 7 through the helical blade 1902, the dust is sucked out through the dust suction hose, the dust is not easy to block the drill rod 14, the drill barrel 1301 and the inside of the connecting shaft 7, the dust is not easy to scatter and block the sight and hurt the health of workers, when too much dust exists, the water pump in the water tank 4 is started, the water pump pumps water to enter the spraying hopper 9, a water curtain is formed to cover the drill barrel assembly 13 and the drill rod 14, so that dust can fall more easily, meanwhile, the spraying hopper 9 can also shield splashed coal blocks, mechanical damage is not easily caused, the safety of workers is ensured, when the drill barrel assembly 13 and the drill rod 14 stop working due to a hard and thick coal bed, the first servo motor 6 can be closed, then the second servo motor 23 is started, the second servo motor 23 drives the turntable 24 to rotate, the turntable 24 drives the stand column 26 to rotate, the stand column 26 pushes the ejector rod 1901 to move back and forth in the limit ring 25, the anvil 1903 at one end of the right side is ejected out of the first through hole 20 by the ejector rod 1901 and can strike the thick coal bed, the thick coal bed area is broken through repeated knocking, then the first servo motor 6 is started again, so that the drill barrel assembly 13 and the drill rod 14 can break and strip the broken thick coal bed, and the problem that a drill bit is easily damaged due to a coal mining machine is solved, meanwhile, the working efficiency is improved.

Claims

1. The utility model provides a coal mining machine, includes track chassis (1), driver's cabin (2), drilling rod (14), its characterized in that: the center of the left side of the top of the crawler chassis (1) is fixedly connected with a cab (2), the center of the right side of the top of the crawler chassis (1) is fixedly connected with fixing plates (3) at the front end and the rear end, the front end and the rear end of the top of the crawler chassis (1) are respectively and fixedly connected with a dust suction pump (10) and a water tank (4), the lower end of the right side of the crawler chassis (1) is fixedly connected with a supporting plate (11), the top of the supporting plate (11) is inclined towards the right and fixedly connected with a hydraulic cylinder (12), the center of the fixing plates (3) is hinged with a connecting shaft (7), a cavity is arranged in the connecting shaft (7), the center of the bottom of the connecting shaft (7) is hinged with the telescopic end of the hydraulic cylinder (12), the tail end of the right side of the connecting shaft (7) is movably connected, the drill rod (14) is internally provided with a cavity, the upper end and the lower end of the right side of the drill barrel assembly (13) are fixedly connected with a crushing assembly (15), the right side center of the drill rod (14) is fixedly connected with a drill bit assembly (18), the upper end and the lower end of the right side center of the drill rod (14) are respectively provided with a through hole (20), the upper end and the lower end of the right side of the drill rod (14) are respectively fixedly connected with a stripping hammer (17), the upper end, the lower end, the front end and the rear end of the joint of the left side of the drill rod (14) and the drill barrel assembly (13) are respectively fixedly connected with a toothed plate (16), the left side of the drill barrel assembly (13) is fixedly connected with a connecting barrel (27), the upper end of the connecting barrel (27) is fixedly connected with a limit box (8), the connecting barrel (27) is positioned at the inner, connecting axle (7) left side upper end fixedly connected with No. two servo motor (23), No. two servo motor (23) bottom output shaft extends to connecting axle (7) inside cavity bottom fixedly connected with carousel (24), and carousel (24) bottom left side switching has stand (26), connecting axle (7) top is located No. two servo motor (23) right side fixedly connected with servo motor (6), servo motor (6) right side center output shaft extends to fixedly connected with gear in spacing box (8), gear and ring gear (1304) top meshing joint, fixedly connected with dust absorption hose between dust absorption pump (10) and connecting axle (7) bottom.

2. The shearer loader of claim 1, wherein: connecting axle (7) inside is located fixedly connected with spacing ring (25) between carousel (24) right side upper and lower extreme, the inside cavity joint of spacing ring (25) has ejector pin subassembly (19), ejector pin subassembly (19) left side top and stand (26) bottom fixed connection, lower extreme central point puts on being located connecting axle (7) cavity spacing ring (25).

3. The shearer loader of claim 1, wherein: the drill barrel assembly (13) further comprises a drill barrel (1301), a first hollow circular groove (1302), a first shaft seat (1303), a through groove (1305), a second hollow circular groove (1306), a second shaft seat (1307), a star frame (1308) and an inner gear ring (1309), the first hollow circular groove (1302) is arranged at the center of the left side of the drill barrel (1301), the first hollow circular groove (1302) is correspondingly communicated with the connecting barrel (27), the second hollow circular groove (1306) is arranged at the center of the right side of the drill barrel (1301), the through groove (1305) is arranged between the first hollow circular groove (1302) and the second hollow circular groove (1306), the first shaft seat (1303) is fixedly connected in the first hollow circular groove (1302), the second hollow circular groove (1306) is fixedly connected with the second shaft seat (1307), the inner gear ring (1309) is fixedly connected between the upper end and the lower end of the right side of the second hollow circular groove (1306), the outer end of the right side of the second shaft seat (1307) is fixedly connected with a planet carrier (1308), a circular groove is formed in the center of the planet carrier (1308), the outer end of the right side of the planet carrier (1308) is sequentially connected with planet gears (22) in a rotating mode at equal intervals, the planet gears (22) are located inside an inner gear ring (1309) and are in meshed clamping connection with the inner gear ring (1309), the left side of the drill rod (14) extends through the inner gear ring (1309), the center position of the planet carrier (1308) is fixedly connected with the inner hollow position of the second shaft seat (1307), the upper end of the drill rod (14) is located inside an inner gear ring (19) and is fixedly connected with a sun gear (1401), the sun gear (1401) is in meshed clamping connection with the planet gears (22), and the tail end of the right side of the.

4. The shearer loader of claim 3, wherein: the first hollow circular groove (1302), the through groove (1305) and the second hollow circular groove (1306) are correspondingly communicated.

5. The shearer loader of claim 1, wherein: ejector pin subassembly (19) are still including ejector pin (1901), helical blade (1902), top hammer (1903), the equal fixedly connected with top hammer (1903) of lower extreme on ejector pin (1901) right side extension is passed through hollow circular slot (1302), logical groove (1305), No. two hollow circular slots (1306) to drilling rod (14) in the right side, upper end from a left side to the right fixedly connected with helical blade (1902) in proper order in ejector pin (1901) are located drilling rod (14), top hammer (1903) correspond the joint with the inside cavity of a through-hole (20), top hammer (1903) are located drilling rod (14) inside upper end and have cup jointed damping spring.

6. The shearer loader of claim 1, wherein: the spraying bucket (9) is hopper-shaped, and the spraying bucket (9) is inside to be annular cavity form, and the opening is equipped with spray orifice (901) towards boring a section of thick bamboo subassembly (13) one side in proper order in the equidistance of opening part upper end, is equipped with the cross net in spray orifice (901), fixedly connected with expansion hose (5) between water tank (4) top and the spraying bucket (9), install the water pump in water tank (4).

7. The shearer loader of claim 1, wherein: broken subassembly (15) are still including connecting rod (1501), metal ball (1502), crushing tooth (1503), connecting rod (1501) top fixedly connected with metal ball (1502), connecting rod (1501) that is located drill barrel (1301) upper end slope setting to the right upper end, connecting rod (1501) that is located drill barrel (1301) lower extreme slope setting to the right, connecting rod (1501) are close to drilling rod (14) one side fixedly connected with crushing tooth (1503), crushing tooth (1503) increase progressively from a left side to right length in proper order, crushing tooth (1503) correspond the setting with pinion rack (16) gap.

8. The shearer loader of claim 1, wherein: spiral cutter body subassembly (21) is still including spiral strip (2101), spiral cutter body (2102), No. two through-holes (2103), drilling rod (14) are located pinion rack (16) right side upper end fixedly connected with spiral strip (2101), spiral strip (2101) upper end central point puts fixedly connected with spiral cutter body (2102), spiral strip (2101) upper end is located spiral cutter body (2102) both sides and all is equipped with No. two through-holes (2103), No. two through-holes (2103) communicate inside drilling rod (14).

9. The shearer loader of claim 1, wherein: the drill bit assembly (18) further comprises a cross drill cutter (1801) and a pointed hammer (1802), wherein the pointed hammer (1802) is fixedly connected to the center of the front side of the cross drill cutter (1801).

10. The shearer loader of claim 1, wherein: the top of the stripping hammer (17) is a spheroid, the top of the spheroid is fixedly connected with a plurality of pickaxe-shaped cutting pick tool bits, the stripping hammer (17) is arranged at the upper end of the drill rod (14) and inclines towards the upper right end, and the stripping hammer is arranged at the lower end of the drill rod (14) and inclines towards the lower right end.