CN207701132U - A kind of winning machine cutting part with differential separation barrel - Google Patents
A kind of winning machine cutting part with differential separation barrel Download PDFInfo
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- CN207701132U CN207701132U CN201721674935.3U CN201721674935U CN207701132U CN 207701132 U CN207701132 U CN 207701132U CN 201721674935 U CN201721674935 U CN 201721674935U CN 207701132 U CN207701132 U CN 207701132U
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Abstract
The utility model discloses a kind of winning machine cutting parts with differential separation barrel, including：The motor driving part includes left cutting motor and right cutting motor, and the two is arranged in cutting units babinet, and the drive connection with roller output section is realized by gear drive portion；The roller output section includes speedy carding process axis, low-speed output shaft, midfoot support frame, high speed rotary-drum, distal end supporting rack, low speed roller, and a cutting drum is separated into two parts rotated coaxially, and can realize that two parts roller differential rotates.Front end low speed roller, rotating speed is relatively low, make the coal cinder under cutting that there is preferable axial mobility, preferably coal cinder can be transported in the wheel vane piece turning circle of high speed rotary-drum, the rotating speed of high speed rotary-drum is far above low speed roller, therefore coal cinder can obtain higher tangential velocity and axial velocity by the effect of high speed rotary-drum, so that coal is crossed roller end to the distance of scraper conveyor middle groove, preferably complete the process that roller conveys and coalings.
Description
Technical field
The present invention relates to coal mine machinery technical fields, and in particular to a kind of low seam mining machinery with differential separation barrel
Cutting units.
Background technology
In recent years, coal in China production industry is fast-developing, and the demand to mining machinery various functions also quickly changes, adopts
Coal machine is one of the important equipment of coal production mechanization and automation.In thin seam mining, to improve yield, at present fully mechanized mining
Cutting for the girdle double-ended shearer used on working face is deep generally in 600mm or more, with the increase for cutting depth, coal cutting amount
It is gradually increased.The theoretical analysis is it is found that roller is conducive to the axial flowing of coal in the slow-speed of revolution, but lower rotating speed causes to roll
The throwing coal speed of cylinder is relatively low, and the effect of loading coal of coalcutter is bad so that in the case where girdle mining height is smaller under cutting
Coal cinder is deposited in goaf, causes float coal situation serious, influences the walking of coalcutter, influences the passage of holder.
Invention content
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention to provide a kind of with differential separation barrel
Winning machine cutting part, can realize that cutting units roller separation and differential work, roller distal portions rotating speed is relatively low, makes under cutting
The scattered coal come has preferable axial mobility；Proximal part rotating speed is higher, can provide enough throwing coal speed, coalcutter is made to have
Preferable effect of loading coal.
Technical solution：To achieve the above object, the technical solution adopted by the present invention is：
A kind of winning machine cutting part with differential separation barrel, including cutting units babinet, motor driving part, gear drive
Portion, roller output section；
Wherein, the motor driving part includes left cutting motor and right cutting motor, and the two is arranged in cutting units babinet
It is interior；The gear drive portion include the left side gear axis being arranged in cutting units babinet, idle pulley one, right side gear axis, idle pulley two,
Total input shaft, planetary gear speed reducing mechanism, one-stage gear axis, secondary gear wheel shaft, input gear, output gear, three-level optical axis, constant speed tooth
Wheel, Speed allotment axis, master gear, pinion；
The output shaft of the left side gear axis and left cutting motor is connected, and gear parts are meshed with idle pulley one；
The idle pulley one is meshed with the gear parts of right side gear axis again, and right side gear axis and the output shaft of right cutting motor coordinate
Connection；The right side gear axis is meshed with idle pulley two again, and idle pulley two is meshed with the gear parts of total input shaft；It is described total
Input shaft is gear shaft, and the input shaft of one end and planetary gear speed reducing mechanism far from gear is connected；The planetary reducer
The input shaft of structure is located at same axis direction with output shaft, and output shaft is connected with one-stage gear axis；The one-stage gear
The gear parts of axis are meshed with the input gear on secondary gear wheel shaft, and two sections of gears are provided on secondary gear wheel shaft, wherein half
The larger gear of diameter is input gear, and the smaller gear of radius is output gear；Output gear on the secondary gear wheel shaft with
Constant speed gear on three-level optical axis is meshed, and constant speed gear is meshed with the master gear on Speed allotment axis again；
The roller output section includes speedy carding process axis, low-speed output shaft, concentric bearings group, positioning bearing, midfoot support
Frame, high speed rotary-drum, distal end supporting rack, low speed roller, end bearing group, abutment sleeve；
The gear parts of the speedy carding process axis are meshed with the pinion on Speed allotment axis, and the number of teeth is less than pinion
The number of teeth；The speedy carding process axis be cylindrical shape, concentric bearings group and positioning bearing be separately fixed at speedy carding process axis inner wall and
On the shaft shoulder of outer wall；The speedy carding process the tip of the axis is matched with the inner wall of midfoot support frame, and the outer wall of midfoot support frame
It is fixedly connected with the inner wall of high speed rotary-drum；The low-speed output shaft is gear shaft, and gear parts are meshed with master gear, tooth
The number of teeth of the number more than master gear；The one end of the low-speed output shaft far from gear sequentially passes through high speed rotary-drum, concentric bearings group, determines
Position sleeve, end bearing group and matched with the inner wall of distal end supporting rack, and the outer wall of distal end supporting rack and low speed roller is interior
Wall is connected.
Further, the left side gear axis is exported with left cutting motor output shaft, right side gear axis and right cutting motor
It is realized and is connected by spline between axis, planetary gear speed reducing mechanism output shaft and one-stage gear axis；
The described one end of total input shaft far from gear is provided with spline, and threaded hole, planetary reducer are provided in spline
It is provided with mutually perforative through-hole in the input of structure, output shaft, the bolt across through-hole connects in the threaded hole, and and planetary reduction gear
The input shaft of mechanism is connected, and planetary gear speed reducing mechanism is also matched by spline simultaneously with total input shaft, realizes preferable transmission
Effect.
Further, the shaft part of total input shaft far from gear one end is equipped with the shaft shoulder, and carrying is equipped at the shaft shoulder
Sleeve；It is socketed with loading bearing group on the outside of the carrying sleeve, bearing block is provided at bearing outer ring；It is set on the bearing block
It is equipped with a pair of of threaded hole, is fixedly connected with the positioning wing plate on cutting units babinet by bolt.Loading bearing group, support
In one end of total input shaft, it can play the role of bearing larger radial load, protect total input shaft, can be very good to ensure total
The concentricity of input shaft and input shaft of planetary reduction gear；The design of positioning wing plate can reduce the assembly difficulty of bearing block, also may be used
To obtain better assembly precision.
Further, the number of teeth of the input gear is 1.5-2.5 times of the one-stage gear axis gear number of teeth；The input
The diameter of gear is 1.5-2.5 times of output gear diameter, and the modulus of output gear is 1.5-2 times of input gear.
Further, the Speed allotment axis is mandrel, and two groups of double-row conical bearings, every group of biserial are equipped on axis
The quantity of taper roll bearing is two, and the bearing outer ring of one of which bearing is matched with pinion, the axis of another group of bearing
Bearing outer-ring is matched with master gear；
The master gear is mounted side by side on pinion on Speed allotment axis, is both provided on adjacent spoke face corresponding
Bellmouth, coordinated by the bellmouth on Double-conical-surface positioning pin and the master gear and pinion, two gears be connected as
One entirety.Double-conical-surface positioning pin ensure that master gear and pinion rotate synchronously, and can transmit the driving force of bigger, structure
It is compact, it is easy to disassemble.Separation barrel can be made to obtain different speed discrepancies by way of replacing master gear and pinion, used
Flexibly, more occasions can be applicable in.
Further, setting is there are four bolt hole on the end face of the midfoot support frame, on the end face for corresponding to high speed rotary-drum
It is also provided with there are four identical counter sink is distributed, passes through counter sink to coordinate with the bolt hole by dormant bolt, by midfoot support
Frame connects into an entirety with high speed rotary-drum, while the outer wall of midfoot support frame passes through in the barrel of channel-shaped shape face and high speed rotary-drum
Side matches.
Further, the distal end supporting rack is round table-like, and tooth form splined hole is set as in the middle part of endoporus, is exported with low speed
The tip of the axis spline matches；Threaded hole, and the end on the supporting rack of distal end are evenly equipped in the distal end faces of the low-speed output shaft
Be provided with round platen in the counterbore of face, be connected in the threaded hole by bolt-through circle platen, realize low-speed output shaft with
The axial restraint of distal end supporting rack；It is provided with equally distributed one group of threaded hole in the end face outside of the distal end supporting rack, leads to
It crosses bolt and low speed roller and distal end supporting rack is connected into an entirety, and the end cavity of low speed roller is sealed.Circle
The setting of shape platen can reduce the manufacture difficulty of distal end supporting rack, and bolt is embedded in the interior of distal end supporting rack with round platen
Portion keeps assembly compacter, saves space.
Further, the low-speed output shaft is hollow-core construction, and center is installed with a rigid water pipe；The rigidity water pipe one
Side is connected on intake end cover, and the end of low-speed output shaft is stretched out in the other side, and passes through the spray in screw thread and low speed roller cavity
Mouth is connected.
Further, the concentric bearings group is two taper roll bearings to dress, outer ring and speedy carding process axis
Inner wall coordinates, and the intermediate shaft part of inner ring and low-speed output shaft coordinates；The positioning bearing is double-row conical bearing, axis
The outer wall for holding inner ring and speedy carding process axis coordinates, and bearing outer ring coordinates with cutting units babinet；
The abutment sleeve both sides of the face are in contact with the side bearing inner race of concentric bearings group, end bearing group respectively；
The midfoot support frame is in bitubular wall construction, and inner tube wall is matched with the bearing outer ring of end bearing group；The middle part branch
It is provided with one group of radial through-hole on support double barrel wall, corresponding radial through-hole is provided on speedy carding process axis, is inserted by axially position pin
Enter in two groups of through-holes, midfoot support frame and speedy carding process axis are fixed into an entirety.In two bearings in concentric bearings group
Outer ring coordinates with two output shafts respectively, it is ensured that two rollers are rotated with same axis, ensure that the stabilization of drum functions
Property；Abutment sleeve contributes to the assembly of bearing, improves assembly precision, reduces assembly difficulty；The design of axially position pin is convenient for rolling
The dismounting of cylinder, and certain shearing force can be born, play the role of overload protection.
Further, be provided with two helical blades on the low speed roller, the helix angle of helical blade be 15 ° extremely
25 ° (larger helix angle provides enough ejection velocities for coal cinder) are disposed with pick on helical blade；The high speed rolling
It is disposed with a helical blade on the outer wall of cylinder, the helix angle of helical blade is 8 ° to 16 °, and (smaller helix angle, carries
For larger ejection velocity), pick is disposed on helical blade；
The helix angle of helical blade is less than the helix angle of helical blade on low speed roller on the high speed rotary-drum；It is described
The rotating speed of high speed rotary-drum is 1.5-3 times of low speed drum rotation speed, and the axial length of low speed roller is high speed rotary-drum axial length
1-4 times.Based on the axial conveying effect of front end roller, while the part of front end roller participation coal cutting is longer.
Advantageous effect：A kind of winning machine cutting part with differential separation barrel provided by the invention, relative to existing skill
Art has the following advantages：1, it can realize cutting units roller separation and differential works, roller distal portions rotating speed is relatively low, makes to cut
The scattered coal cut off has preferable axial mobility；Proximal part rotating speed is higher, can provide enough throwing coal speed, make coal mining
Machine has preferable effect of loading coal；
2, it using Dual-motors Driving, is driven compared to single motor, the driving force of bigger can be obtained, and in identical driving force
Under, Dual-motors Driving can possess smaller motor volume and the cutting power of bigger；
3, since the helix angle of high speed rotary-drum is smaller, cornerite is relatively large, and high speed rotary-drum is set as single blade structure,
It can ensure under higher rotation speed, still there are enough defeated coal gaps in high speed rotary-drum front end, will not stop that the conveying of low speed roller comes
Coal cinder, while single blade structure is but also with the ability of helical feed, and providing the second level for coal cinder accelerates and cast.
Description of the drawings
Fig. 1 is the sectional view of roller output section in the present invention；
Fig. 2 a~2c are the structural schematic diagram of high speed output shaft of the present invention；
Fig. 3 a~3b are the structural schematic diagram of midfoot support frame in the present invention；
Fig. 4 a~4c are the structural schematic diagram of high speed roller of the present invention；
Fig. 5 a~5b are the structural schematic diagram of low-speed output shaft in the present invention；
Fig. 6 a~6b are the structural schematic diagram of distal end supporting rack in the present invention；
Figure includes：1-3-3, intake end cover, 3-1, speedy carding process axis, 3-2, low-speed output shaft, 3-3, concentric bearings group,
3-4, positioning bearing, 3-5, midfoot support frame, 3-6, high speed rotary-drum, 3-7, distal end supporting rack, 3-8, rigid water pipe, 3-9, low speed
Roller, 3-10, end bearing group, 3-11, dormant bolt, 3-12, round platen, 3-13, bolt, 3-14, abutment sleeve, 3-
15, axially position pin,
3-1-1, axially extending bore, 3-1-2, gear parts, 3-1-3, cooperation plane, 3-1-4, radial through-hole, 3-2-1, spiral shell
Pit, 3-2-2, gear parts, 3-2-3, intermediate shaft part, 3-2-4, longest shaft part, 3-5-1, shell, 3-5-2, axially extending bore,
3-5-3, inner tube wall, 3-5-4, radial through-hole, 3-5-5, ladder shoulder, 3-5-6, bolt hole, 3-6-1, axially extending bore, 3-6-2, spiral shell
Vane piece, 3-6-3, pick, 3-6-4, radial through-hole, 3-6-5, counter sink, 3-7-1, tooth form splined hole, 3-7-2, end face are heavy
Hole, 3-7-3, threaded hole, 3-8-1, nozzle.
Specific implementation mode
The present invention is further described below in conjunction with the accompanying drawings.
It is a kind of winning machine cutting part with differential separation barrel, including the driving of cutting units babinet, motor as shown in Figure 1
Portion, gear drive portion, roller output section；
Wherein, the winning machine cutting part uses Dual-motors Driving, and motor driving part includes left cutting motor and right cutting
Motor, the two are arranged in cutting units babinet；It is provided with multiple axis holes on the cutting units babinet, end cap is cased with outside axis hole；Institute
State gear drive portion include the left side gear axis being arranged in cutting units babinet, it is idle pulley one, right side gear axis, idle pulley two, total defeated
Enter axis, planetary gear speed reducing mechanism, one-stage gear axis, secondary gear wheel shaft, input gear, output gear, three-level optical axis, constant speed gear,
Speed allotment axis, master gear, pinion, bearing block, loading bearing group；The roller output section includes speedy carding process axis 3-1, low
Fast output shaft 3-2, concentric bearings group 3-3, positioning bearing 3-4, midfoot support frame 3-5, high speed rotary-drum 3-6, distal end supporting rack 3-
7, rigid water pipe 3-8, low speed roller 3-9, end bearing group 3-10, circle platen 3-12 and a variety of bolt standard components.
The first order in the gear drive portion is left side gear axis, and left side gear axis is internally provided with splined hole, is cut with a left side
The shaft end splined section for cutting motor matches；The left side gear axis is fixed on cutting units babinet by the bearing positioned at axis both ends
Axis hole in, gear parts are meshed with idle pulley one；The idle pulley one is meshed with the gear parts of right side gear axis again, right
Side gear axis is internally provided with same splined hole and is matched with the shaft end splined section of right cutting motor；The right side tooth
Wheel shaft by the way that in the axis hole that the bearing at axis both ends is fixed on cutting units babinet, gear parts are meshed with idle pulley two again,
The idle pulley two is meshed with the gear parts of total input shaft, and kinetic energy is transmitted；
Total input shaft is gear shaft, and section is crosswise (to be extended transmission distance, saved transmission space, together
When provide convenience for assembly), be fixed on No.1 end cap by bearing close to one end of gear parts, far from gear side
End face on be provided with spline, be provided with threaded hole in spline, the input of planetary gear speed reducing mechanism, output shaft be provided with through-hole (for
Bolt provides assembly space), bolt is connected with the input shaft of planetary gear speed reducing mechanism, and (bolt, which plays, to be fixedly connected and axial constraint
Effect), planetary gear speed reducing mechanism is also matched by spline simultaneously with total input shaft；The input shaft of the planetary gear speed reducing mechanism with it is defeated
Shaft is located at same axis direction, and spline is provided on output shaft, the spline and the splined section on one-stage gear axis
It matches；
The one-stage gear axis is multi-diameter shaft, one end of planetary gear speed reducing mechanism is provided with spline, both ends are respectively
It is fixed in cutting units babinet by a double-row conical bearing；The gear parts and secondary gear of the one-stage gear axis
Input gear on axis is meshed, and the number of teeth of input gear is that (transmission ratio is for 1.5-2.5 times of the one-stage gear axis gear number of teeth
1.5-2.5 plays decelerating effect)；
The secondary gear wheel shaft is cluster gear axis, and both ends are fixed on by bearing on cutting units babinet, in shaft part
There are two sections of gears in portion, and the wherein larger gear of radius is input gear, and the smaller gear of radius is output gear, input gear with
The diameter and modulus of output gear are all different, and the diameter of input gear is that 1.5-2.5 times of output gear diameter (plays deceleration
Effect, transmission ratio 1.5-2.5), the modulus of output gear is that 1.5-2 times of input gear (plays decelerating effect, transmission ratio is
1.5-2.5)；Output gear on the secondary gear wheel shaft is meshed with the constant speed gear on three-level optical axis, and constant speed gear passes through
Bearing is socketed on three-level optical axis, and constant speed gear is meshed with the master gear on Speed allotment axis；
The Speed allotment axis is mandrel, and the mandrel is ladder-like in multistage, and diameter of axle minimal segment is fixed on by axle sleeve and is cut
In the axis hole for cutting portion's babinet, two sections of larger stepped holes passed through on cutting units babinet of the diameter of axle, diameter of axle largest segment periphery is provided with spiral shell
Pit is bolted in the stepped hole of cutting units babinet, and the both ends of Speed allotment axis pass through end cap and cutting units babinet
It is fixed together；Two groups of double-row conical bearings (bearing capacity for improving bearing) are installed, often on the Speed allotment axis
The quantity of group double-row conical bearing is two, and one of which is located at close to coal wall side, bearing outer ring and pinion phase
Cooperation, another group of bearing are located remotely from the side of coal wall, and bearing outer ring is matched with master gear.
The gear parts 3-1-2 of the speedy carding process axis 3-1 is meshed with the pinion on Speed allotment axis, and the number of teeth is small
In the number of teeth of pinion；The speedy carding process axis 3-1 is that (convenient for low-speed output shaft etc., other components pass through tubular from centre, close
Reason utilizes space), concentric bearings group 3-3 and positioning bearing 3-4 are separately fixed on the shaft shoulder of the inner wall in the middle part of stack shell and outer wall；
The end of the speedy carding process axis 3-1 is matched with the inner wall of midfoot support frame 3-5；On the end face of the midfoot support frame 3-5
There are four bolt hole 3-5-6 for setting, correspond to and are distributed identical counter sink 3-6- there are four being also provided on the end face of high speed rotary-drum 3-6
5, dormant bolt 3-11 pass through counter sink 3-6-5 to coordinate with bolt hole 3-5-6, by midfoot support frame 3-5 and high speed rotary-drum 3-6
An entirety is connected into, while the outer wall of midfoot support frame 3-5 on the inside of the barrel of channel-shaped shape face and high speed rotary-drum 3-6 by matching
It closes；
The low-speed output shaft 3-2 is gear shaft, and section is crosswise, and gear parts 3-2-2 is located at the side of axis,
The side is one end far from cutting drum；Low-speed output shaft 3-2 close to one end of gear parts 3-2-2 by bearing be fixed on into
On water end (W.E.) lid 1-3-3, gear parts are meshed with master gear, and the number of teeth of the gear parts (is played more than the number of teeth of master gear
The effect of deceleration)；The low-speed output shaft 3-2 is the tip of the axis close to one end of roller, and tooth form spline is provided on the end；
The optical axis portion of the low-speed output shaft 3-2 is longer, this section of diameter is less than the diameter of the axis gear part, the low speed output
Axis 3-2 sequentially passes through high speed rotary-drum 3-6, concentric bearings group 3-3, abutment sleeve 3-14, end bearing group from gear end to end
3-10 and distal end supporting rack 3-7；The distal end supporting rack 3-7 is round table-like, and tooth form splined hole 3-7- is set as in the middle part of endoporus
1, for the end spline fitted with low-speed output shaft 3-2；
As shown in Fig. 6 a~6b, the distal end supporting rack 3-7 is towards being provided with equally distributed one group on the end face of coal wall
Low speed roller 3-9 and distal end supporting rack 3-7 are connected into an entirety by threaded hole 3-7-3 by bolt, and by low speed roller
The end cavity of 3-9 seals and (prevents the foreign matters such as broken coal from entering, the space of sealing liquid is provided for spraying system)；It is described low
The stack shell of fast roller 3-9 is equipped with two helical blades, and the helix angle of helical blade is 15 ° to 25 °, and pick is disposed on blade
(larger helix angle provides enough ejection velocities for coal cinder)；
Gear axis on the left side gear axis, idle pulley one, right side gear axis, idle pulley two and total input shaft is mutually flat
Row, and in gear face is generally aligned in the same plane, is arranged in the side close to coal wall in cutting units babinet, cut to change tradition
The power transmission route for cutting portion's rocking arm leaves enough spaces for deceleration mechanism, the arrangement of roller.
The shaft part of total input shaft far from gear one end is equipped with the shaft shoulder, for installing carrying sleeve；The carrying set
The outer wall of cylinder coordinates with the inner ring of loading bearing group；The loading bearing group is two cylinder roller bearings, and bearing outer ring is solid
It is scheduled in bearing block；The bearing block is provided with a pair of of threaded hole on the shell, and it is outer mounted on this to position wing plate by bolt
On shell, the positioning wing plate is also mounted in the particular groove of cutting units babinet simultaneously (constrains loading bearing group in cutting units case
The position of body, and for planetary gear speed reducing mechanism to be provided to the positioning end face needed for assembly).
The master gear is mounted side by side on pinion on Speed allotment axis, is both provided on adjacent spoke face identical
Bellmouth；Distribution radius of the bellmouth on two gears, size and quantity are completely the same；Double-conical-surface positioning pin respectively with
Two gears are connected as an entirety so that power is passed by master gear by the bellmouth cooperation on the master gear and pinion
It is delivered to pinion, and the movement of two gears is completely the same.
As shown in Fig. 2 a~2c, the speedy carding process axis 3-1 is gear shaft structure, whole to be in hollow tubular and be provided with axial direction
Through-hole 3-1-1 is arranged in same axis direction mounted on the end of cutting units babinet and with cutting drum；Speedy carding process axis 3-1
Gear parts 3-1-2 be located remotely from one end of cutting drum；The speedy carding process axis 3-1 stretches out the outer wall of main shaft end cap portion
On set there are two cooperation plane 3-1-3, midfoot support frame 3-5 parallel to each other and the cooperation plane 3-1-3 mutual cooperation, from
And constrain the relative rotation of midfoot support frame 3-5 and speedy carding process axis circumferencial direction.Speedy carding process axis 3-1 and midfoot support frame
3-5 is not only connected by the bolt of end face but also is matched using plane 3-1-3, and cooperation plane 3-1-3 can make cooperation more
Closely, it so that midfoot support frame is born the circumference torque of bigger, make midfoot support frame stress evenly, while reduce bolt institute
It is sheared, improves the reliability and service life of equipment.
As shown in Fig. 5 a~5b, 6 threaded hole 3-2-1, bolt are provided in the distal end faces of the low-speed output shaft 3-2
3-13 passes through 6 through-holes on round platen 3-12, is assemblied on 6 threaded hole 3-2-1 (constraint low-speed output shaft 3-
The axial relative movement of 2 and distal end supporting rack 3-7)；The circle platen is assemblied in the end face counterbore 3-7- of distal end supporting rack 3-7
In 2.
The low-speed output shaft 3-2 is hollow-core construction, and center is installed with a rigid water pipe 3-8；The sides water pipe 3-8 connect
On intake end cover 1-3-3, the end of low-speed output shaft 3-2 is stretched out in the other side, and is connected with nozzle 3-8-1 by screw thread；
The nozzle is located at low speed the tip of the axis, and is enclosed in the inner chamber body of low speed roller 3-9, is the spraying system of low speed roller 3-9
System supplies water, and nozzle is not installed on the high speed rotary-drum 3-6.
The concentric bearings group 3-3 is two taper roll bearings to dress, the inner wall of outer ring and speedy carding process axis 3-1
The major diameter fit of the intermediate shaft part 3-2-3 of cooperation, inner ring and low-speed output shaft 3-2；The positioning bearing 3-4 is biserial circular cone
The outer wall of roller bearing, the bearing inner race and speedy carding process axis 3-1 coordinates, and outer ring coordinates with cutting units babinet；
The positioning bearing 3-4 is located at cutting units babinet end, and outer ring is positioned by main shaft end cap；The main shaft end cap
It is bolted on the end of cutting units babinet, the opened bore dia in center is slightly larger than the outer diameter of speedy carding process axis 3-1；It is high
The fast one end of output shaft 3-1 far from gear parts is stretched out from the through-hole of main shaft end cap；
As shown in Fig. 3 a~3b, the sections shell 3-5-1 of the midfoot support frame 3-5 are flute profile, are in bitubular wall construction,
It is i.e. whole to be in tubbiness and be provided with axially extending bore 3-5-2, one section of inner tube wall 3-5-3 is provided in bucket；The inner tube wall 3-5-3
Internal diameter be slightly larger than end face through-hole diameter, outer diameter be less than main body barrel internal diameter, inner tube wall 3-5-3 be used for and end bearing
The bearing outer ring of group 3-10 matches, and using the ladder shoulder 3-5-5 on its inner wall to the bearing of the end bearing group 3-10
Outer ring is constrained.The midfoot support frame 3-5 is provided with one group of radial through-hole 3-5-4；The speedy carding process axis 3-1 is provided with together
The radial through-hole 3-1-4 of sample, and two groups of through-holes, along identical radial arrangement, two axially position pin 3-15 are logical from two groups respectively
The both sides in hole are inserted, and midfoot support frame 3-5 and speedy carding process axis 3-1 are fixed into an entirety, constrain the axial direction of the two
Relative motion.
As shown in Figure 4 a ~ 4c, the high speed rotary-drum 3-6 Cylinder wall structures in pairs, are provided with axially extending bore 3-6-1, outer tube wall
Extend to the direction far from coal wall, the end section of cutting units babinet is wrapped in cylinder, inner tube wall opens that there are two radial
Through-hole 3-6-4 provides assembly space for axially position pin 3-5-1；A spiral is disposed on the outer wall of the high speed rotary-drum 3-6
The helix angle of blade 3-6-2, helical blade are 8 ° to 16 °, and pick 3-6-3 is disposed on blade, and (smaller helix angle, carries
For larger ejection velocity)；
The abutment sleeve 3-14 is mounted on one end of the longest shaft part 3-2-4 of low-speed output shaft 3-2；The abutment sleeve
3-14 both sides of the face are in contact with the side bearing inner race of concentric bearings group 3-3 and end bearing group 3-10 respectively.
The rotating speed of the high speed rotary-drum 3-6 is 1.5-3 times of low speed roller 3-9 rotating speeds, the helical blade of high speed rotary-drum 3-6
Helix angle be less than low speed roller 3-9 helical blades helix angle；The axial length of the low speed roller 3-9 is that high speed is rolled
1-4 times of cylinder axial length.Based on the axial conveying effect of front end roller, while front end roller participates in the part of coal cutting more
It is long.
One cutting drum is separated into same shaft rotation by the winning machine cutting part provided by the invention with differential separation barrel
Two dynamic parts, and can realize that two parts roller differential rotates.Front end low speed roller, rotating speed is relatively low, makes the coal under cutting
Block has preferable axial mobility, and preferably coal cinder can be transported in the wheel vane piece turning circle of high speed rotary-drum, high
The speed of fast roller is higher than low speed roller, therefore coal cinder can obtain higher tangential velocity and axis by the effect of high speed rotary-drum
To speed.Since the helix angle of high speed rotary-drum is smaller than low speed roller so that coal cinder is after high speed rotary-drum acts on, axial velocity
Increment be more than tangential velocity increment.The projectile that coal cinder increase of tangential velocity on drum blade can improve coal cinder is high
Degree, the increase of axial velocity can increase the axial displacement of coal cinder, thus allow the coal cinder cut off further to convey backward, simultaneously
With higher initial velocity, it is easier to which the gap for flying over coal wall and the middle pan of scraper conveyor is fallen on drag conveyor, is reduced
Float coal amount improves transfer efficiency.Since the wheel rotation lift angle of high speed rotary-drum is smaller, cornerite is relatively large.High speed rotary-drum is set as
Single blade structure, it is ensured that under higher rotation speed, still there are enough defeated coal gaps in high speed rotary-drum front end, will not stop low speed
The coal cinder that roller conveying comes, while single blade structure provides second level acceleration for coal cinder and throws but also with the ability of helical feed
It penetrates.
The above is only a preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of winning machine cutting part with differential separation barrel, which is characterized in that driven including cutting units babinet, motor
Portion, gear drive portion, roller output section；
Wherein, the motor driving part includes left cutting motor and right cutting motor, and the two is arranged in cutting units babinet；Institute
State gear drive portion include the left side gear axis being arranged in cutting units babinet, it is idle pulley one, right side gear axis, idle pulley two, total defeated
Enter axis, planetary gear speed reducing mechanism, one-stage gear axis, secondary gear wheel shaft, input gear, output gear, three-level optical axis, constant speed gear,
Speed allotment axis, master gear, pinion；
The output shaft of the left side gear axis and left cutting motor is connected, and gear parts are meshed with idle pulley one；It is described
Idle pulley one is meshed with the gear parts of right side gear axis again, and right side gear axis and the output shaft cooperation of right cutting motor connect
It connects；The right side gear axis is meshed with idle pulley two again, and idle pulley two is meshed with the gear parts of total input shaft；It is described total defeated
It is gear shaft to enter axis, and the input shaft of one end and planetary gear speed reducing mechanism far from gear is connected；The planetary gear speed reducing mechanism
Input shaft and output shaft be located at same axis direction, output shaft and the mating connection of one-stage gear axis；The one-stage gear axis
Gear parts be meshed with the input gear on secondary gear wheel shaft, two sections of gears, wherein radius are provided on secondary gear wheel shaft
Larger gear is input gear, and the smaller gear of radius is output gear；Output gear and three on the secondary gear wheel shaft
Constant speed gear on grade optical axis is meshed, and constant speed gear is meshed with the master gear on Speed allotment axis again；
The roller output section includes speedy carding process axis (3-1), low-speed output shaft (3-2), concentric bearings group (3-3), locating shaft
Hold (3-4), midfoot support frame (3-5), high speed rotary-drum (3-6), distal end supporting rack (3-7), low speed roller (3-9), end bearing
Group (3-10), abutment sleeve (3-14)；
The gear parts (3-1-2) of the speedy carding process axis (3-1) are meshed with the pinion on Speed allotment axis, and the number of teeth is small
In the number of teeth of pinion；The speedy carding process axis (3-1) is cylindrical shape, and concentric bearings group (3-3) and positioning bearing (3-4) are respectively
It is fixed on the shaft shoulder of speedy carding process axis (3-1) inner wall and outer wall；The end of the speedy carding process axis (3-1) and midfoot support frame
The inner wall of (3-5) matches, and the outer wall of midfoot support frame (3-5) is fixedly connected with the inner wall of high speed rotary-drum (3-6)；It is described low
Fast output shaft (3-2) is gear shaft, and gear parts are meshed with master gear, and the number of teeth is more than the number of teeth of master gear；It is described low
The one end of fast output shaft (3-2) far from gear sequentially passes through high speed rotary-drum (3-6), concentric bearings group (3-3), abutment sleeve (3-
14), end bearing group (3-10) and matched with the inner wall of distal end supporting rack (3-7), and the outer wall of distal end supporting rack (3-7) with
The inner wall of low speed roller (3-9) is connected.
2. a kind of winning machine cutting part with differential separation barrel according to claim 1, which is characterized in that the left side
Side gear axis and left cutting motor output shaft, right side gear axis and right cutting motor output shaft, planetary gear speed reducing mechanism output shaft with
It is realized and is connected by spline between one-stage gear axis；
The described one end of total input shaft far from gear is provided with spline, and threaded hole is provided in spline, planetary gear speed reducing mechanism
It is provided with mutually perforative through-hole in input, output shaft, the bolt across through-hole connects in the threaded hole, and and planetary gear speed reducing mechanism
Input shaft be connected, planetary gear speed reducing mechanism is also matched by spline simultaneously with total input shaft.
3. a kind of winning machine cutting part with differential separation barrel according to claim 1, which is characterized in that described total
Shaft part of the input shaft far from gear one end is equipped with the shaft shoulder, and carrying sleeve is equipped at the shaft shoulder；The carrying sleeve outer sheath
It is connected to loading bearing group, bearing block is provided at bearing outer ring；It is provided with a pair of of threaded hole on the bearing block, passes through bolt
It is fixedly connected with the positioning wing plate on cutting units babinet.
4. a kind of winning machine cutting part with differential separation barrel according to claim 1, which is characterized in that described defeated
The number of teeth for entering gear is 1.5-2.5 times of the one-stage gear axis gear number of teeth；The diameter of the input gear is that output gear is straight
1.5-2.5 times of diameter, the modulus of output gear are 1.5-2 times of input gear.
5. a kind of winning machine cutting part with differential separation barrel according to claim 1, which is characterized in that the speed
Degree distributing shaft is mandrel, two groups of double-row conical bearings is equipped on axis, the quantity of every group of double-row conical bearing is two
A, the bearing outer ring of one of which bearing is matched with pinion, and the bearing outer ring of another group of bearing is matched with master gear；
The master gear is mounted side by side on pinion on Speed allotment axis, and corresponding cone is both provided on adjacent spoke face
Shape hole is coordinated by the bellmouth on Double-conical-surface positioning pin and the master gear and pinion, two gears is connected as one
It is whole.
6. a kind of winning machine cutting part with differential separation barrel according to claim 1, which is characterized in that in described
There are four bolts hole (3-5-6) for setting on the end face of portion's supporting rack (3-5), correspond to and are also provided on the end face of high speed rotary-drum (3-6)
There are four identical counter sink (3-6-5) is distributed, counter sink (3-6-5) and the bolt hole are passed through by dormant bolt (3-11)
(3-5-6) coordinates, and midfoot support frame (3-5) and high speed rotary-drum (3-6) are connected into an entirety, while midfoot support frame (3-
5) outer wall on the inside of channel-shaped shape face and the barrel of high speed rotary-drum (3-6) by matching.
7. a kind of winning machine cutting part with differential separation barrel according to claim 1, which is characterized in that described remote
It is round table-like to hold supporting rack (3-7), is set as tooth form splined hole (3-7-1) in the middle part of endoporus, the end with low-speed output shaft (3-2)
End spline matches；Threaded hole (3-2-1), and distal end supporting rack are evenly equipped in the distal end faces of the low-speed output shaft (3-2)
It is provided with round platen (3-12) in end face counterbore (3-7-2) on (3-7), is connected by bolt-through circle platen (3-12)
In the threaded hole (3-2-1), the axial restraint of low-speed output shaft (3-2) and distal end supporting rack (3-7) are realized；The distal end branch
Equally distributed one group of threaded hole (3-7-3) is provided in the end face outside of support (3-7), by bolt by low speed roller (3-
9) and distal end supporting rack (3-7) connects into an entirety, and the end cavity of low speed roller (3-9) is sealed.
8. a kind of winning machine cutting part with differential separation barrel according to claim 1, which is characterized in that described low
Fast output shaft (3-2) is hollow-core construction, and center is installed with a rigid water pipe (3-8)；Described rigidity side water pipe (3-8) is connected to
On intake end cover (1-3-3), the end of low-speed output shaft (3-2) is stretched out in the other side, and passes through screw thread and low speed roller (3-9) chamber
Internal nozzle (3-8-1) is connected.
9. a kind of winning machine cutting part with differential separation barrel according to claim 1, which is characterized in that described same
Heart bearing group (3-3) is two taper roll bearings to dress, and outer ring and the inner wall of speedy carding process axis (3-1) coordinate, in
The intermediate shaft part (3-2-3) of circle and low-speed output shaft (3-2) coordinates；The positioning bearing (3-4) is double-row conical bearing,
The outer wall of its bearing inner race and speedy carding process axis (3-1) coordinates, and bearing outer ring coordinates with cutting units babinet；
Abutment sleeve (3-14) both sides of the face respectively with concentric bearings group (3-3), a side axle of end bearing group (3-10)
Inner ring is held to be in contact；The midfoot support frame (3-5) is in bitubular wall construction, inner tube wall (3-5-3) and end bearing group (3-
10) bearing outer ring matches；It is provided with one group of radial through-hole (3-5-4) on midfoot support frame (3-5) double barrel wall, high speed is defeated
Corresponding radial through-hole (3-1-4) is provided on shaft (3-1), by axially position pin (3-15) be inserted into two groups of through-holes in, will in
Portion's supporting rack (3-5) and speedy carding process axis (3-1) are fixed into an entirety.
10. a kind of winning machine cutting part with differential separation barrel according to claim 1, which is characterized in that described
Two helical blades are provided on low speed roller (3-9), the helix angle of helical blade is 15 ° to 25 °, and on helical blade
It is disposed with pick；It is disposed with a helical blade on the outer wall of the high speed rotary-drum (3-6), the helix angle of helical blade is
8 ° to 16 °, and pick is disposed on helical blade；
The helix angle of helical blade is less than the spiral liter of helical blade on low speed roller (3-9) on the high speed rotary-drum (3-6)
Angle；The rotating speed of the high speed rotary-drum (3-6) is 1.5-3 times of low speed roller (3-9) rotating speed, and the axial direction of low speed roller (3-9)
Length is 1-4 times of high speed rotary-drum axial length.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721674935.3U CN207701132U (en) | 2017-12-05 | 2017-12-05 | A kind of winning machine cutting part with differential separation barrel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721674935.3U CN207701132U (en) | 2017-12-05 | 2017-12-05 | A kind of winning machine cutting part with differential separation barrel |
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| Publication Number | Publication Date |
|---|---|
| CN207701132U true CN207701132U (en) | 2018-08-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538203A (en) * | 2019-01-14 | 2019-03-29 | 太重煤机有限公司 | The cutting means of vertical shearer |
-
2017
- 2017-12-05 CN CN201721674935.3U patent/CN207701132U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538203A (en) * | 2019-01-14 | 2019-03-29 | 太重煤机有限公司 | The cutting means of vertical shearer |
| CN109538203B (en) * | 2019-01-14 | 2024-04-02 | 太重煤机有限公司 | Cutting device of vertical drum shearer |
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