CN213744777U - Improved speed reducer of aerodynamic coal mine drilling machine - Google Patents
Improved speed reducer of aerodynamic coal mine drilling machine Download PDFInfo
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- CN213744777U CN213744777U CN202021861763.2U CN202021861763U CN213744777U CN 213744777 U CN213744777 U CN 213744777U CN 202021861763 U CN202021861763 U CN 202021861763U CN 213744777 U CN213744777 U CN 213744777U
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- 238000005553 drilling Methods 0.000 title claims abstract description 37
- 239000003245 coal Substances 0.000 title claims abstract description 33
- 239000003638 chemical reducing agent Substances 0.000 title claims description 8
- 238000000034 method Methods 0.000 abstract description 4
- 241001074085 Scophthalmus aquosus Species 0.000 abstract description 2
- 206010063659 Aversion Diseases 0.000 abstract 2
- 244000309464 bull Species 0.000 description 46
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000005065 mining Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of the brill is adopted, specifically is a modified aerodynamic force coal mine drilling machine's decelerator, include, a gear wheel, a pinion, a rotation axis, No. two gear wheels, No. two pinions, No. two rotation axes, No. three gear wheels, No. three pinions, No. three rotation axes, a aversion gear, No. two aversion gears and No. four rotation axes. The utility model discloses an improve an aerodynamic force coal mine drilling machine CN 2020218449247's technical scheme, apply the rotational speed on the drill bit with an improved aerodynamic force coal mine drilling machine and through the cubic speed reduction, fall the rotational speed to guarantee under the condition that does not increase atmospheric pressure and tolerance, increase the drilling strength of drill bit, thereby at the exploitation coal seam in-process, when meetting the hard layer, can continue to exploit.
Description
Technical Field
The utility model belongs to the technical field of the brill is adopted, specifically is a speed reduction gear of modified aerodynamic force colliery rig.
Background
The application patent CN2020218449247 proposes an improved aerodynamic coal mine drilling machine, which utilizes an air compressor to provide power for an air cylinder of the drilling machine, so as to rotate a rotary core of a rotating device, thereby driving a drill bit to rotate, and achieving the effects of drilling and mining.
The technical scheme of application patent CN2020218449247, when exploiting general coal seam, the effect is good, but at the in-process of exploitation coal, can meet the hard layer of coal gangue class, at this moment aerodynamic coal mine rig need increase the exploitation dynamics, adopt the function that increases air compressor among the prior art, provide the air that pressure is bigger, however, this has brought the degree of difficulty for whole equipment, like security greatly reduced, air compressor's cost improves greatly, the material of the part spare part of manufacturing aerodynamic coal mine rig will strengthen the thickening.
Therefore, the invention provides an improved speed reducer of an aerodynamic coal mine drilling machine, which increases the strength of a drill bit by reducing speed, and can be installed to continue mining if a hard layer is met during mining of a coal seam.
SUMMERY OF THE UTILITY MODEL
The utility model provides a speed reduction unit of modified aerodynamic force coal mine rig improves once more through the technical scheme to a modified aerodynamic force coal mine rig CN2020218449247, with the rotational speed of an improved aerodynamic force coal mine rig application on the drill bit through the cubic speed reduction, fall the rotational speed, thereby guarantee under the condition that does not increase atmospheric pressure and tolerance, increase the strength of creeping into of drill bit, thereby at the exploitation coal seam in-process, if meet when hard layer, can continue to exploit.
The utility model adopts the following technical scheme.
An improved speed reducer j of an aerodynamic coal mine drilling machine comprises a first large gear d1, a first small gear x1, a first rotating shaft c1, a second large gear d2, a second small gear x2, a second rotating shaft c2, a third large gear d3, a third small gear x3, a third rotating shaft c3, a first shifting gear y1, a second shifting gear y2 and a fourth rotating shaft c 4.
The first rotating shaft c1 is connected with and kept vertical to the central holes of the first bull gear d1 and the first pinion gear x1, the first bull gear d1 and the first pinion gear x1 are vertically and fixedly welded on the first rotating shaft c1, two ends of the first rotating shaft c1 are inserted into an inner hole of the bearing 204 and fixedly connected with an inner hole ring of the bearing 204 through screws, the bearing 204 is embedded into two vertical plates 2034 of the support 203 and fixedly connected with an outer ring of the bearing 204 through screws, and therefore the first bull gear d1, the first pinion gear x1 and the first rotating shaft c1 can rotate.
The second rotating shaft c2 is connected with the center holes of the second bull gear d2 and the second pinion gear x2 and keeps vertical, the second bull gear d2 and the second pinion gear x2 are vertically fixed and welded on the second rotating shaft c2, two ends of the second rotating shaft c2 penetrate through the inner hole of the bearing 204 and are fixedly connected with the inner hole ring of the bearing 204 through screws, the bearing 204 is embedded in two vertical plates 2034 of the bracket 203 and is fixedly connected with the outer ring of the bearing 204 through screws, and therefore the second bull gear d2, the second pinion gear x2 and the second rotating shaft c2 can rotate.
The third rotating shaft c3 is connected with and kept vertical to the central holes of the third gearwheel d3 and the third pinion x3, the third gearwheel d3 and the third pinion x3 are vertically and fixedly welded on the third rotating shaft c3, two ends of the third rotating shaft c3 are inserted into the inner hole of the bearing 204 and fixedly connected with the inner hole ring of the bearing 204 by screws, the bearing 204 is embedded in two vertical plates of the bracket 203 and fixedly connected with the outer ring of the bearing 204 by screws, and therefore the third gearwheel d3, the third pinion x3 and the third rotating shaft c3 can rotate.
The fourth rotating shaft c4 is connected with and kept vertical to the central holes of the first shifting gear 1 and the second shifting gear y2, the first shifting gear y1 and the second shifting gear y2 are vertically and fixedly welded on the fourth rotating shaft c4, two ends of the fourth rotating shaft c4 are inserted into the inner hole of the bearing 204 and fixedly connected with the inner hole ring of the bearing 204 by screws, the bearing 204 is embedded in two vertical plates 2034 of the bracket 203 and fixedly connected with the outer ring of the bearing 204 by screws, and therefore the first shifting gear y1, the second shifting gear y2 and the fourth rotating shaft c4 can be kept to rotate.
The utility model provides an operating principle of speed reduction unit j of improved aerodynamic force coal mine drilling machine, curved bar gear 206 and a bull gear d1 interlock, and curved bar gear 206 is rotatory to drive a bull gear d1 rotatory, and a bull gear d1 is rotatory to drive a rotation axis C1 rotatory, and a rotation axis C1 is rotatory to drive a pinion x1 rotatory, and because a bull gear d1 diameter is big, a pinion x1 diameter is little, and under the condition that the rotational speed is the same, the circumference linear velocity of two gears is different, and a bull gear d1 circumference linear velocity is fast, and a pinion x1 circumference linear velocity is little.
The first small gear x1 is meshed with the second big gear D2, the first small gear x1 rotates to drive the second big gear D2 to rotate, the second big gear D2 rotates to drive the second rotating shaft C2 to rotate, the second rotating shaft C2 rotates to drive the second small gear x2 to rotate, the first small gear x1 and the second big gear D2 have the same circumferential speed, but the first small gear x1 is small in diameter, the second big gear D2 is large in diameter, so that the rotating speed of the second big gear D2 is smaller than that of the first small gear x1, and the rotating speed is reduced for the first time.
The second bull gear D2 rotates to drive the second rotating shaft C2 to rotate, the second rotating shaft C2 rotates to drive the second pinion gear x2 to rotate, and because the diameter of the second bull gear D2 is larger than that of the second pinion gear x2, under the condition of the same rotating speed, the circumferential speeds of the gears are different, the circumferential linear speed of the second bull gear D2 is high, and the circumferential linear speed of the second pinion gear x2 is low.
The second pinion X2 is meshed with the third bull gear D3, the second pinion X2 rotates to drive the third bull gear D3 to rotate, the third bull gear D3 rotates to drive the third rotating shaft C3 to rotate, the third rotating shaft C3 rotates to drive the third pinion X3 to rotate, the second pinion X2 and the third bull gear D3 have the same circumferential speed, but the rotation speed of the third bull gear D3 is lower than that of the second pinion X2 because the diameter of the second pinion X2 is small and the diameter of the third bull gear D3 is large, and the rotation speed is reduced for the second time.
The third bull gear D3 rotates to drive the third rotating shaft C3 to rotate, the third rotating shaft C3 rotates to drive the third pinion gear X3 to rotate, and because the third bull gear D3 is large in diameter and the third pinion gear X3 is small in diameter, the circular linear speeds of the gears are different under the condition of the same rotating speed, the circular linear speed of the third bull gear D3 is high, and the circular linear speed of the third pinion gear X3 is low.
The third pinion X3 meshes with the first shift gear Y1, the third pinion X3 rotates to rotate the first shift gear Y1, the first shift gear Y1 rotates to rotate the fourth rotary shaft C4, the fourth rotary shaft C4 rotates to rotate the second shift gear Y2, the third pinion X3 and the first shift gear Y1 have the same circumferential speed, but the third pinion X3 has a small diameter and the first shift gear Y1 has a large diameter, so the first shift gear Y1 has a rotational speed lower than that of the third pinion X3, and the rotational speed is reduced for the third time.
The first shift gear Y1 and the second shift gear Y2 are the same in size, are inserted through the same fourth rotating shaft C4, and have the same rotating speed.
After the speed reduction is carried out for three times, the second shift gear Y2 is meshed with the rotating shaft gear 210 to drive the rotating shaft gear 210 to rotate in a speed reduction mode, and therefore the rotating speed of the drill bit of the improved pneumatic coal mine drilling machine is reduced.
The utility model has the advantages that:
through improving the technical scheme of an improved aerodynamic coal mine drilling machine CN2020218449247, the rotating speed of the improved aerodynamic coal mine drilling machine applied to a drill bit is reduced through three-time speed reduction, so that the drilling force of the drill bit is increased under the condition that the air pressure and the air quantity are not increased, and the coal mining can be continued if a hard layer is met in the coal mining process.
The utility model discloses a some parts are in the utility model provides a specific beneficial effect lists as follows:
1. the air compressor can pressurize the gas, and the pressurized gas is the utility model discloses provide required power. Thereby replacing electric power, a motor and a drill rod to provide power for the drill bit.
2. The utility model discloses a cubic speed reduction to the steady speed reduction of adaptation gear, and reduce the damage speed of gear.
3. The utility model discloses the setting of gear wheel and pinion can make the speed reduction realize.
Drawings
Fig. 1 is a schematic view of an embodiment of the present invention.
Fig. 2 is a schematic view of the drill of the present invention.
Fig. 3 is a schematic diagram of the present invention.
In the figure, 1-drill bit, 11-drill bit body, 12-installation bolt hole, 13-air injection hole, 14-clockwise rotation drilling tooth or drilling tool, 15-anticlockwise rotation drilling tooth or drilling tool, 16-air flow channel, 2-air cylinder component, 201-A air cylinder, 202-B air cylinder, 203-bracket, 2031-upper top plate, 2032-middle plate, 2033-lower bottom plate, 2034-vertical plate, 204-bearing, 205-curved rod, 206-curved rod gear, 207-middle gear, 208-horizontal gear, 209-rotating shaft, 210-rotating shaft gear, 211-drill bit installation shaft, 2111-air channel pipe, 2112-air channel bearing, 3-drill rod, 4-air supply system, 41-air compressor, 42-air guide pipe, 43-air inlet, 44-air outlet, d 1-first gear wheel, x 1-first pinion, c 1-first rotating shaft, d 2-second gear wheel, x 2-second pinion, c 2-second rotating shaft, d 3-third gear wheel, x 3-third pinion, c 3-third rotating shaft, y 1-first shifting gear, y 2-second shifting gear and c 4-fourth rotating shaft.
Detailed Description
An improved pneumatic coal mine drilling machine comprises a drill bit 1, a pneumatic cylinder assembly 2, a drill rod 3 and an air supply system 4.
The drill bit 1 comprises a drill bit body 11, a mounting bolt hole 12, an air injection hole 13, a clockwise rotating drill tooth or drill bit 14, a counterclockwise rotating drill tooth or drill bit 15 and an air flow channel 16.
The pneumatic cylinder assembly 2 comprises an A pneumatic cylinder 201, a B pneumatic cylinder 202, a bracket 203, a bearing 204, a curved rod 205, a curved rod gear 206, an intermediate gear 207, a horizontal gear 208, a rotating shaft 209, a rotating shaft gear 210 and a drill bit mounting shaft 211. An air passage tube 2111 for air guiding is provided in the center of the bit mounting shaft 211.
The bracket 203 includes an upper top plate 2031, a middle plate 2032, a lower plate 2033, and a vertical plate 2034, all of which are rectangular. The upper top plate is vertically welded and connected with the left vertical plate 2034 and the right vertical plate 2034; the lower bottom plate 2033 is parallel to the upper top plate and is vertically welded and connected with the left vertical plate 2034 and the right vertical plate 2034; the middle plate 2032 is parallel to the upper top plate 2031, is located at the middle of the upper top plate and the lower bottom plate, and is vertically welded to the left and right risers 2034.
The crank 205 and the rotating shaft 209 are rotatably connected to the bracket 203 through a bearing 204 installed in a riser 2034.
The crank gear 206 is fixedly installed on the crank 205 through a screw, the rotating shaft gear 210 is fixedly installed on the rotating shaft 209 through a screw, the crank gear 206 is meshed with the first gearwheel D1, the second displacement gear Y2 is meshed with the rotating shaft gear 210, and when the crank gear 206 rotates, the rotating shaft gear 210 is driven to rotate through the speed reducer j.
The intermediate gear 207 is fixed to a rotary shaft 209 by a screw, and when the rotary shaft gear 210 rotates, the rotary shaft 209 is driven to rotate, and the intermediate gear 207 is also rotated by the rotation of the rotary shaft 209.
The intermediate gear 207 and the horizontal gear 208 are trapezoidal gears and are engaged at ninety degrees, and when the intermediate gear 207 rotates in the vertical direction, the horizontal gear 208 is driven to rotate in the horizontal mean square direction.
The horizontal gear 208 is fixedly welded to the bit mounting shaft 211, and when the horizontal gear 208 rotates, the bit mounting shaft 211 is also rotated.
The gas supply system 4 comprises an air compressor 41, a gas guide tube 42, a gas nozzle 43 and a gas nozzle 44.
The drill bit 1 is arranged on the drill bit mounting shaft 211 of the air cylinder assembly 2, and the air flow channel 16 of the drill bit 1 is communicated with the air duct 42 of the air supply system 4 and supplies required compressed air for the drill bit 1. The drill rod 3 is fixedly installed at the upper end of the support 23 of the air cylinder assembly 2, the air supply system 4 is connected with the air cylinder assembly 2 through the air guide pipe 42 and the air nozzle 43, and the air supply system 4 provides compressed air for the air cylinder assembly 2.
The drill bit mounting shaft 211 of the air cylinder assembly 2 drives the drill bit 1 to rotate, the bracket 203 at the upper end of the air cylinder assembly 2 is fixedly connected with the drill rod 3 through a bolt, and the drill rod 3 is only suspended and does not rotate because the bracket 203 does not rotate.
The air supply system 4 comprises an air compressor 41, an air guide tube 42, an air nozzle 43 and an air outlet nozzle 44, wherein one end of the air guide tube 42 is inserted into the air outlet of the air compressor 41, the other end of the air guide tube is sleeved on the air nozzle 43, the air nozzle 43 is fixedly embedded on the shell of the pneumatic cylinder 2 and protrudes out of a part of the plane of the shell of the pneumatic cylinder 2 to be sleeved with the air guide tube 42. The air nozzle 43 can introduce air into the pneumatic cylinder 2, and the air nozzle 44 is hermetically inserted into the air passage tube 2111.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, an improved pneumatic coal mine drilling machine includes a drill bit 1, a pneumatic cylinder assembly 2, a drill pipe 3 and a gas supply system 4.
As shown in figure 1, the drill bit is arranged below the pneumatic cylinder assembly 2, the drill rod 3 is arranged above the pneumatic cylinder assembly 3, and the air supply system 4 is connected with the pneumatic cylinder assembly 2 through an air guide pipe and provides compressed air for the pneumatic cylinder assembly 2.
As shown in fig. 2, the drill bit 1 includes a bit body 11, a mounting bolt hole 12, an air injection hole 13, a clockwise rotary drill bit 14, a counterclockwise rotary drill bit 15, and an air flow channel 16.
The upper end of the drill bit body 11 is provided with a mounting bolt hole 12, the lower working part is provided with a clockwise rotating drill tooth or drill knife 14 and an anticlockwise rotating drill tooth or drill knife 15, the middle part is provided with an air flow channel 16, and the periphery and the bottom of the drill bit body 11 are provided with air injection holes 13.
As shown in fig. 3, the pneumatic cylinder assembly 2 includes an a pneumatic cylinder 201, a B pneumatic cylinder 202, a bracket 203, a bearing 204, a curved lever 205, a curved lever gear 206, an intermediate gear 207, a horizontal gear 208, a rotary shaft 209, a rotary shaft gear 210, and a bit mounting shaft 211.
The air supply system 4 comprises an air compressor 41, an air guide tube 42, air nozzles 43 and an air outlet nozzle 44, wherein one end of the air guide tube 42 is inserted into the air outlet of the air compressor 41, and the other end of the air guide tube 42 is divided into three tubes which are sleeved on the two air nozzles 43 and the air outlet nozzle 44.
As shown in fig. 3, an air channel tube 2111 and an air channel bearing 2112 are arranged in the drill mounting shaft 211, and the air channel tube 2111 is used for receiving compressed air provided by the air supply system 4 and providing the required compressed air for the drill 1. The airway bearing 2112 ensures that the bit mounting shaft 211 rotates while the airway tube 2111 and the outlet nozzle 44 mounted in the airway bearing 2112 do not rotate.
The outer wall of the air channel 2111 pipe is sleeved on the inner ring of the bearing and is fixedly installed on the lower bottom plate 2033 of the bracket 3 without rotating along the drill bit installation shaft 211.
The air outlet 44 is hermetically inserted into the air passage tube 2111.
As shown in fig. 3, the bracket 203 includes an upper top plate 2031, a middle plate 2032, a lower plate 2033, and a riser 2034, all of which are rectangular. The upper top plate is vertically welded and connected with the left vertical plate 2034 and the right vertical plate 2034; the lower bottom plate 2033 is parallel to the upper top plate and is vertically welded and connected with the left vertical plate 2034 and the right vertical plate 2034; the middle plate 2032 is parallel to the upper top plate 2031, is located at the middle of the upper top plate and the lower bottom plate, and is vertically welded to the left and right risers 2034.
The crank 205 and the rotating shaft 209 are rotatably connected to the bracket 203 through a bearing 204 installed in a riser 2034.
The crankshaft gear 206 is fixedly mounted on the crankshaft 205 through a screw, the rotating shaft gear 210 is fixedly mounted on the rotating shaft 209 through a screw, and the crankshaft gear 206 drives the rotating shaft gear 210 to rotate through a speed reducer j.
The intermediate gear 207 is fixed to a rotary shaft 209 by a screw, and when the rotary shaft gear 210 rotates, the rotary shaft 209 is driven to rotate, and the intermediate gear 207 is also rotated by the rotation of the rotary shaft 209.
The intermediate gear 207 and the horizontal gear 208 are trapezoidal gears and are engaged at ninety degrees, and when the intermediate gear 207 rotates in the vertical direction, the horizontal gear 208 is driven to rotate in the horizontal mean square direction.
The horizontal gear 208 is fixedly welded to the bit mounting shaft 211, and when the horizontal gear 208 rotates, the bit mounting shaft 211 is also rotated.
As shown in fig. 1 and 3, an improved pneumatic coal mine drilling machine speed reducer j comprises a first large gear d1, a first small gear x1, a first rotating shaft c1, a second large gear d2, a second small gear x2, a second rotating shaft c2, a third large gear d3, a third small gear x3, a third rotating shaft c3, a first shifting gear y1, a second shifting gear y2 and a fourth rotating shaft c 4.
The first rotating shaft c1 is connected with and kept vertical to the central holes of the first bull gear d1 and the first pinion gear x1, the first bull gear d1 and the first pinion gear x1 are vertically and fixedly welded on the first rotating shaft c1, two ends of the first rotating shaft c1 are inserted into an inner hole of the bearing 204 and fixedly connected with an inner hole ring of the bearing 204 through screws, the bearing 204 is embedded into two vertical plates 2034 of the support 203 and fixedly connected with an outer ring of the bearing 204 through screws, and therefore the first bull gear d1, the first pinion gear x1 and the first rotating shaft c1 can rotate.
The second rotating shaft c2 is connected with the center holes of the second bull gear d2 and the second pinion gear x2 and keeps vertical, the second bull gear d2 and the second pinion gear x2 are vertically fixed and welded on the second rotating shaft c2, two ends of the second rotating shaft c2 penetrate through the inner hole of the bearing 204 and are fixedly connected with the inner hole ring of the bearing 204 through screws, the bearing 204 is embedded in two vertical plates 2034 of the bracket 203 and is fixedly connected with the outer ring of the bearing 204 through screws, and therefore the second bull gear d2, the second pinion gear x2 and the second rotating shaft c2 can rotate.
The third rotating shaft c3 is connected with and kept vertical to the central holes of the third gearwheel d3 and the third pinion x3, the third gearwheel d3 and the third pinion x3 are vertically and fixedly welded on the third rotating shaft c3, two ends of the third rotating shaft c3 are inserted into the inner hole of the bearing 204 and fixedly connected with the inner hole ring of the bearing 204 by screws, the bearing 204 is embedded in two vertical plates of the bracket 203 and fixedly connected with the outer ring of the bearing 204 by screws, and therefore the third gearwheel d3, the third pinion x3 and the third rotating shaft c3 can rotate.
The fourth rotating shaft c4 is connected with and kept vertical to the central holes of the first shifting gear 1 and the second shifting gear y2, the first shifting gear y1 and the second shifting gear y2 are vertically and fixedly welded on the fourth rotating shaft c4, two ends of the fourth rotating shaft c4 are inserted into the inner hole of the bearing 204 and fixedly connected with the inner hole ring of the bearing 204 by screws, the bearing 204 is embedded in two vertical plates 2034 of the bracket 203 and fixedly connected with the outer ring of the bearing 204 by screws, and therefore the first shifting gear y1, the second shifting gear y2 and the fourth rotating shaft c4 can be kept to rotate.
As shown in fig. 1, the air supply system 4 includes an air compressor 41, an air duct 42, an air nozzle 43 and an air outlet 44.
As shown in fig. 1, 2 and 3, the drill 1 is mounted on the drill mounting shaft 211 of the air cylinder assembly 2, and the air flow passage 16 of the drill 1 communicates with the air passage tube 2111 of the mounting shaft 211 and supplies the drill 1 with the required compressed air. The drill rod 3 is fixedly arranged at the upper end of the bracket 23 of the air cylinder assembly 2, the air supply system 4 is connected with the air cylinder assembly 2 through the air guide pipe 42 and the air nozzle 43, and the air supply system 4 provides compressed air for the air cylinder assembly 2.
As shown in fig. 1 and 2, the drill bit body 11 is fixedly connected with the drill bit mounting shaft 211 of the pneumatic cylinder assembly 2 through the mounting bolt hole 12, the number of the air injection holes 13 is three to nineteen, the number of the air injection holes 13 is determined according to the size of the drill bit, the type of the geological formation, the rotating speed of the drill bit, the compression energy of the compressed air and the pressurization degree of the air, and when the pneumatic cylinder assembly 2 drives the drill bit 1 to rotate, the cutting edge surface of the drill bit 14 or the drill bit 15 bites the geological formation to perform work.
As shown in FIG. 1, the drill bit 1 is rotated by the drill bit mounting shaft 211 of the pneumatic cylinder assembly 2, the bracket 203 at the upper end of the pneumatic cylinder assembly 2 is fixedly connected with the drill rod 3 through a bolt, and the drill rod 3 is only suspended and does not provide a rotating torque for the drill bit because the bracket 203 does not rotate.
As shown in fig. 1, the air supply system 4 includes an air compressor 41, an air duct 42, an air nozzle 43, and an air outlet nozzle 44, wherein one end of the air duct 42 is inserted into the air outlet of the air compressor 41, the other end is sleeved on the air nozzle 43 and the air outlet nozzle 44, the air nozzle 43 is fixedly embedded on the shells of the a pneumatic cylinder 201 and the B pneumatic cylinder 202, protrudes out of a part of the plane of the shell of the outer pneumatic cylinder, and is used for sleeving the air duct 42. The air nozzle 43 can introduce air into two pneumatic cylinders. The air outlet 44 is hermetically inserted into the air passage tube 2111.
The working principle of the improved aerodynamic coal mine drilling machine is as follows:
increase a pneumatic cylinder subassembly 2 between drilling rod 3 and drill bit 1, drilling rod 3 is at pneumatic cylinder subassembly 2 upper end fixed connection, drill bit 1 and pneumatic cylinder subassembly 2's drill bit installation axle 211 fixed connection.
The air compressor 41 in the air supply system 4 supplies compressed air to the a pneumatic cylinder 201 and the B pneumatic cylinder 202 in the air supply assembly 2 through the air duct 42, and the compressed air causes the piston rods of the a pneumatic cylinder 201 and the B pneumatic cylinder 202 to move up and down. The air compressor 41 provides the drill bit 1 with the required compressed air through the air duct 42, and the compressed air enters the air duct 2111 through the air outlet 44, and the compressed air can blow off the ore fragments in the drill bit 1.
The cylinder assembly 2 is provided with an a pneumatic cylinder 201 and a B pneumatic cylinder 202, piston rods of the two pneumatic cylinders are respectively sleeved at two concave-convex parts of the curved rod 205, when one piston rod moves downwards, the other piston rod moves upwards and then replaces, and the other piston rod reciprocates circularly to drive the curved rod 205 to rotate.
The rotation of the crank shaft 205 causes the gear crank gear 206 to rotate at the same speed, and when the crank gear 206 rotates, the rotation shaft gear 210 is rotated by the reduction gear j.
Since the intermediate gear 207 and the rotary shaft gear 210 are fixedly attached to the rotary shaft 209, the intermediate gear 207 and the rotary shaft gear 210 rotate at the same rotational speed.
The intermediate gear 207 and the horizontal gear 208 are trapezoidal gears and are engaged vertically, so that when the intermediate gear 207 rotates in the vertical direction, the horizontal gear 208 is rotated in the horizontal direction.
The drill bit 1 is fixedly mounted on the drill bit mounting shaft 211, so that the drill bit 1 is driven by the drill bit mounting shaft 211 to rotate at the same speed for drilling or mining.
The utility model provides an improved aerodynamic force coal mine drilling machine's decelerator's theory of operation, curved bar gear 206 and a bull gear d1 interlock, and curved bar gear 206 is rotatory to drive a bull gear d1 rotatory, and a bull gear d1 is rotatory to drive a rotation axis C1 rotatory, and a rotation axis C1 is rotatory to drive a pinion x1 rotatory, and because a bull gear d1 diameter is big, a pinion x1 diameter is little, and under the same circumstances of rotational speed, the circumference linear velocity of two gears is different, and a bull gear d1 circumference linear velocity is fast, and a pinion x1 circumference linear velocity is little.
The first small gear x1 is meshed with the second big gear D2, the first small gear x1 rotates to drive the second big gear D2 to rotate, the second big gear D2 rotates to drive the second rotating shaft C2 to rotate, the second rotating shaft C2 rotates to drive the second small gear x2 to rotate, the first small gear x1 and the second big gear D2 have the same circumferential speed, but the first small gear x1 is small in diameter, the second big gear D2 is large in diameter, so that the rotating speed of the second big gear D2 is smaller than that of the first small gear x1, and the rotating speed is reduced for the first time.
The second bull gear D2 rotates to drive the second rotating shaft C2 to rotate, the second rotating shaft C2 rotates to drive the second pinion gear x2 to rotate, and because the diameter of the second bull gear D2 is larger than that of the second pinion gear x2, under the condition of the same rotating speed, the circumferential speeds of the gears are different, the circumferential linear speed of the second bull gear D2 is high, and the circumferential linear speed of the second pinion gear x2 is low.
The second pinion X2 is meshed with the third bull gear D3, the second pinion X2 rotates to drive the third bull gear D3 to rotate, the third bull gear D3 rotates to drive the third rotating shaft C3 to rotate, the third rotating shaft C3 rotates to drive the third pinion X3 to rotate, the second pinion X2 and the third bull gear D3 have the same circumferential speed, but the rotation speed of the third bull gear D3 is lower than that of the second pinion X2 because the diameter of the second pinion X2 is small and the diameter of the third bull gear D3 is large, and the rotation speed is reduced for the second time.
The third bull gear D3 rotates to drive the third rotating shaft C3 to rotate, the third rotating shaft C3 rotates to drive the third pinion gear X3 to rotate, and because the third bull gear D3 is large in diameter and the third pinion gear X3 is small in diameter, the circular linear speeds of the gears are different under the condition of the same rotating speed, the circular linear speed of the third bull gear D3 is high, and the circular linear speed of the third pinion gear X3 is low.
The third pinion X3 meshes with the first shift gear Y1, the third pinion X3 rotates to rotate the first shift gear Y1, the first shift gear Y1 rotates to rotate the fourth rotary shaft C4, the fourth rotary shaft C4 rotates to rotate the second shift gear Y2, the third pinion X3 and the first shift gear Y1 have the same circumferential speed, but the third pinion X3 has a small diameter and the first shift gear Y1 has a large diameter, so the first shift gear Y1 has a rotational speed lower than that of the third pinion X3, and the rotational speed is reduced for the third time.
The first shift gear Y1 and the second shift gear Y2 are the same in size, are inserted through the same fourth rotating shaft C4, and have the same rotating speed.
After the speed reduction is carried out for three times, the second shift gear Y2 is meshed with the rotating shaft gear 210 to drive the rotating shaft gear 210 to rotate in a speed reduction mode, and therefore the rotating speed of the drill bit of the improved pneumatic coal mine drilling machine is reduced.
Claims (1)
1. A speed reducer of a pneumatic coal mine drilling machine is characterized by comprising a first big gear, a first small gear, a first rotating shaft, a second big gear, a second small gear, a second rotating shaft, a third big gear, a third small gear, a third rotating shaft, a first shifting gear, a second shifting gear and a fourth rotating shaft;
the first rotating shaft is connected with and kept vertical to the central holes of the first big gear and the first small gear, the first big gear and the first small gear are vertically and fixedly welded on the first rotating shaft, and two ends of the first rotating shaft are inserted into the inner hole of the bearing of the drilling machine;
the second rotating shaft is connected with and kept vertical to the central holes of the second big gear and the second small gear, the second big gear and the second small gear are vertically and fixedly welded on the second rotating shaft, and two ends of the second rotating shaft are inserted into the inner hole of the bearing of the drilling machine;
the third rotating shaft is connected with and kept vertical to the central holes of the third big gear and the third small gear, the third big gear and the third small gear are vertically and fixedly welded on the third rotating shaft, and two ends of the third rotating shaft are inserted into the inner hole of the bearing of the drilling machine;
the fourth rotating shaft is connected with and kept vertical to the central holes of the first shifting gear 1 and the second shifting gear, the first shifting gear and the second shifting gear are vertically and fixedly welded on the fourth rotating shaft, and two ends of the fourth rotating shaft are inserted into inner holes of bearings of the drilling machine;
the first big gear is meshed with a curved bar gear on an aerodynamic coal mine drilling machine, the first small gear is meshed with the second big gear, the second small gear is meshed with the third big gear, the third small gear is meshed with the first shifting gear, and the second shifting gear is meshed with a rotating shaft gear on the drilling machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021861763.2U CN213744777U (en) | 2020-08-31 | 2020-08-31 | Improved speed reducer of aerodynamic coal mine drilling machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021861763.2U CN213744777U (en) | 2020-08-31 | 2020-08-31 | Improved speed reducer of aerodynamic coal mine drilling machine |
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| Publication Number | Publication Date |
|---|---|
| CN213744777U true CN213744777U (en) | 2021-07-20 |
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| CN202021861763.2U Active CN213744777U (en) | 2020-08-31 | 2020-08-31 | Improved speed reducer of aerodynamic coal mine drilling machine |
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| Country | Link |
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| CN (1) | CN213744777U (en) |
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Effective date of registration: 20231025 Address after: 834700 Shajihai, Tacheng Prefecture, Xinjiang Uyghur Autonomous Region and Bukesir County Patentee after: Hebuxer Mongolia Autonomous County Shajihai Coal Industry Co.,Ltd. Address before: 450100 qianxinzhuang shenlida company, Wangcun Town, Xingyang City, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU SHENLIDA DRILLING EQUIPMENT Co.,Ltd. |