A kind of high-efficiency vertical roller mill
Technical field
The utility model relates to a kind of high-efficiency vertical roller mill, is applicable to the grinding of the various materials of industry such as slag, metallic ore, nonmetal slag, metallurgy, chemical industry, also can be used for the grinding of other slags, ore.
Background technology
Chinese patent discloses a kind of vertical roll grinder No. 99233773.9, and its mill is installed in the support, and is fixed; Grinding roller is equipped with through floral disc, rocking arm, twisted axis in the mill inboard, and floral disc is contained on the bearing block through main shaft, when main shaft makes the floral disc rotation under driven by motor; Grinding roller rotates synchronously, grinding roller rotation under the effect of frictional force and material resistance, and charging aperture is positioned at grinding machine top; Material is crushed by grinding roller, and the material after the pulverizing is through outside the discharging opening discharge machine of bottom.Grinding power is adjustable, energy consumption is low though this utility model has, grinding effect is good, technology and material practical, noise is little, advantage such as reliable; But also come with some shortcomings: 1, the mill driving mode is the two-stage belt transmission; Through big small belt pulley belt speed is dropped to certain rotating speed; The small belt pulley cornerite is little, and frictional force is little, therefore has the low phenomenon of transmission efficiency; 2, structure more complicated, field-strip inconvenience; 3, sealing is poor, because grinding machine is in the many adverse circumstances of dust for a long time, makes that the bearing wear in the rocking arm is big, and service life is short, and result of use is not good.
Chinese patent 200620052683.6 discloses a kind of roller mill; Comprise charging aperture, discharging opening, grinding roller, mill, main shaft, casing, the grinding machine main shaft is provided with swivel joint, is provided with single channel or multichannel hole that fluid can pass through in the joint; Be provided with radial and axial oil, gas passage in the main shaft; Respective channel in the passage of swivel joint and the main shaft connects, and is convenient to lubricating oil turnover bearing, thereby plays good cooling and lubricating effect; Perhaps make clean gas get into sealing device and play buffer action, make dust be difficult to get into bearing.This utility model has good sealing, cooling and lubricant effect, but the deficiency that exists is that an internal drilling difficulty of processing is bigger, and cost of manufacture is than higher; Need increase lubricating system and compressed air system simultaneously, systematic comparison is complicated, and more fatal a bit is that grinding machine is to vibrate bigger equipment; And bearing receives very large impulsive force, on axle, holes, with the intensity that reduces axle; Make axle occur fracture easily, reduced the service life of axle.
Chinese patent 200820102264.8 also discloses a kind of novel vertical Roller grinder; This utility model comprises housing with charging and discharging mouth and the center of being located at the housing middle part mechanism that turns; The center mechanism's upside of turning is provided with oil inlet pipe; Oil inlet pipe is connected through the inner oil pocket of rocking arm upper end cover and rocking arm, to realize rocking arm inside oil pocket fuel feeding.This utility model adopts thin oil lubricant, has improved lubricated sealing effectiveness, has avoided bearing petrol starvation to occur.But also there is following deficiency in this utility model: because this system is not the circulation fuel feeding, adopt thin oil to be lubricated, high to seal request, lubricant effect is also effective not as lubricating grease.
Summary of the invention
The utility model is in order to remedy the deficiency of prior art, provides that a kind of disposal ability is big, efficient is high, good seal performance, grinding power is adjustable, the high-efficiency vertical roller mill that is easy to overhaul.
The utility model is realized through following technical scheme.
The high-efficiency vertical roller mill of the utility model, it comprises motor, reductor and grinding machine, motor and speed reducer interconnects the formation drive unit; Its special character is: grinding machine comprises in the enclosure main shaft of installation, be fixed on floral disc on the main shaft, be installed in rocking arm on the floral disc, be rotatably installed in the grinding roller of rocking arm end and be fixed on the abrasion-proof backing block of outer casing inner wall and the corresponding grinding material of grinding roller; Shell upper has charging hole, and there is discharging opening the lower end; Reductor connects the main shaft of grinding machine through the belt wheel set.
Preferred version is that the shell of grinding machine connects and composes integral body from top to bottom successively by spindle bearing holder, middle body and base; The main shaft of grinding machine runs through and is installed in the spindle bearing holder; Charging hole is located on the spindle bearing holder; Floral disc is installed in the middle body and is fixed on the main shaft; Also be fixed with the spreading disk that is arranged in body and is positioned at the floral disc top on the main shaft, dismountable abrasion-proof backing block is installed in the base, and discharging opening is installed in below the base; Grinding roller is fixed on the grinding roller core through grinding roller pressure ring and screw, and the grinding roller core is installed on the rocking arm through bearing, the oil filler point of oiling in the oriented bearing on the grinding roller core.
Described rocking arm one end side surface and floral disc side are hinged, and spring is installed in the floral disc, and spring is connected with rocking arm through spring bearer plate; The rocking arm cover is fixed rocker arm shaft through alignment pin, and rocker arm shaft is connected with grinding roller through bearing.
The sealing and dustproof structure is installed on the described grinding roller; This structure comprises that the asbestos packing, grinding roller end cap, the grinding roller that are installed on the grinding roller core pass through lid, outside framework oil seal and dust cover; The grinding roller end cap is fixed on grinding roller core upper end, is fixed with dust cover on the bearing (ball) cover, and asbestos packing is enclosed between the bearing (ball) cover outside and the dust cover; Outside framework oil seal is enclosed within the bottom between bearing (ball) cover inboard and the rocking arm, and grinding roller passes through lid and is enclosed within the top between bearing (ball) cover inboard and the rocking arm.
Body side and top are provided with access door in described.
Be provided with blocking material ring in the body in described, blocking material ring is positioned at spreading plate below and is positioned at floral disc and the rocking arm outside.
Described abrasion-proof backing block is tile-shaped, through the liner plate pressing plate abrasion-proof backing block is fixed to the inwall of base, and the angle of abrasion-proof backing block and main shaft is 30 °.
Installing hole with rocking arm hinged place installation hinge on the described floral disc is a demountable structure, through bolt Kazakhstan Fu Gai is installed on the floral disc and forms detachable installing hole.
Described reductor belt pulley is identical with grinding machine spindle pulley specification, and spindle bearing holder is provided with two charging holes, charging hole symmetric arrangement.
Through bolt discharging opening is installed below the described base, discharging opening inserts the degree of depth of grinding machine and regulates through bolt.
The present invention has the following advantages:
1. have very high adaptive capacity, the various materials below can grinding 30mm can be regulated going out grinding rate, and this equipment is very strong to the adaptive capacity of material.
2. device structure is simple, compact, and is in light weight, so cost is very low, floor space is also very little.
3. adopt the best kind of drive, transmission efficiency is high.Reductor and grinding machine adopt belt drives, and drive motors and reductor are independently installed, and easy to maintenance so equipment operation is steady, noise is low, and equipment life is long.
4. the installing hole on the floral disc is a demountable structure, and middle body upper side and top are provided with access door, and abrasion-proof backing block is the bolt compressing structure, so this utility model maintenance and easy to maintenance.
5. be provided with blocking material ring in the middle body, grinding roller is provided with seal closure, has improved the environment of grinding roller work, improves the sealing of grinding roller bearing self.
6. negative-pressure operation is adopted in grinding machine inside, and dust is minimum, compliance with environmental protection requirements.
Description of drawings
Fig. 1 looks outline drawing for the assembling master of the utility model, and Fig. 2 is the utility model vertical view, and Fig. 3 is the utility model cut-away view, and Fig. 4 is the utility model rocker structure figure, and Fig. 5 is the floral disc structure chart.
Among the figure, 1, grinding machine and motor basis, 2, variable-frequency motor, 3, reductor, 4, the reductor belt pulley, 5, D type belt; 6, grinding machine belt pulley, 7, the grinding machine body, 8, access door, 9, spindle bearing holder, 10, spreading disk, 11, middle body; 12, blocking material ring, 13, rocking arm, 14, floral disc, 15, the liner plate pressing plate, 16, abrasion-proof backing block, 17, base; 18, discharging opening, 19, grinding roller, 20, the grinding roller core, 21, asbestos packing, 22, the grinding roller end cap, 23, dust cover; 24, rocking arm cover, 25, rocker arm shaft, 26, grinding roller passes through lid, 27, outside framework oil seal, 28, the cylindrical roller self-aligning bearing, 29, taper roll bearing; 30, taper roll bearing, 31, the cylindrical roller bearing, 32, the grinding roller pressure ring, 33, the grinding roller end cap, 34, O type circle, 35, breathe out Fu Gai.
The specific embodiment
The high-efficiency vertical roller mill of the utility model, it comprises motor 2, reductor 3 and grinding machine, motor and speed reducer interconnects the formation drive unit; Grinding machine comprises in the enclosure main shaft of installation, be fixed on floral disc 14 on the main shaft, be installed in rocking arm 13 on the floral disc, be rotatably installed in the grinding roller 19 of rocking arm end and be fixed on the abrasion-proof backing block 16 of outer casing inner wall and the corresponding grinding material of grinding roller; Shell upper has charging hole, and there is discharging opening 18 lower end; Reductor 3 connects the main shaft of grinding machine through the belt wheel set.
Preferred version is that the shell of grinding machine connects and composes integral body from top to bottom successively by spindle bearing holder 9, middle body 11 and base 17; The main shaft of grinding machine runs through and is installed in the spindle bearing holder; Charging hole is located on the spindle bearing holder 9; Floral disc 14 is installed in the middle body 11 and is fixed on the main shaft; Also be fixed with the spreading disk 10 that is arranged in body 11 and is positioned at the floral disc top on the main shaft, dismountable abrasion-proof backing block 16 is installed in the base, and discharging opening 18 is installed in below the base; Grinding roller 19 is fixed on the grinding roller core 20 through grinding roller pressure ring 32 and screw, and the grinding roller core is installed on the rocking arm through bearing, the oil filler point of oiling in the oriented bearing on the grinding roller core.
The sealing and dustproof structure is installed on the described grinding roller; This structure comprises that the asbestos packing 21, grinding roller end cap 22, the grinding roller that are installed on the grinding roller core 20 cover 26 thoroughly, outside framework oil seal 27 and dust cover 23; The grinding roller end cap is fixed on grinding roller core upper end, is fixed with dust cover on the bearing (ball) cover, and asbestos packing is enclosed between the bearing (ball) cover outside and the dust cover; Outside framework oil seal is enclosed within the bottom between bearing (ball) cover inboard and the rocking arm, and grinding roller passes through lid and is enclosed within the top between bearing (ball) cover inboard and the rocking arm.
The special-purpose grinding machine of the slag micro powder of the utility model, the reductor belt pulley is identical with grinding machine spindle pulley specification, and this structure belt contact is maximum, and transmission efficiency is high; Spindle bearing holder is provided with two charging holes, and this structure cloth is even, and the grinding machine vibration is little; In the middle body blocking material ring 12 is set, blocking material ring is positioned at spreading disk 10 belows and is positioned at floral disc and the rocking arm outside, prevents that the material under the spreading disk throwing from falling on the grinding roller, has improved the working environment of grinding roller, prevents that dust from getting into grinding roller; Middle body side and top are provided with access door 8, convenient maintenance and maintenance to equipment; During being installed to, spreading disk and floral disc in the body, be fixed on the main shaft spreading disk and middle body upper build-up wear-resistant material; Improved the service life of equipment; Six holes are set on the floral disc, a hinge is installed in two holes, rocking arm 13 1 end side surface are hinged through hinge and floral disc 14 sides; A spring is installed in the floral disc, and spring is connected with rocking arm through spring bearer plate; Rocking arm cover is fixed rocker arm shaft through alignment pin, and rocker arm shaft is connected with grinding roller through bearing, and in the grinding machine motion process; rocker arm shaft does not change, grinding roller changes, and the rocker arm shaft bending stress of bearing is little like this; the bearing physical life is long, is superior to bearing is installed to the structure of rocking arm inside overlapping; Dust cover 23 is installed on the grinding roller, has improved the sealing of grinding roller.Middle body links to each other with base through bolt, and base is fixed on the concrete pedestal 1 through foundation bolt, and detachable abrasion-proof backing block 16 is installed in the base; The discharging opening 18 of scalable thickness of feed layer is installed through bolt below the base, can regulates the grinding time of material, guarantee the grinding rate that of material.
Abrasion-proof backing block 16 is tile-shaped, through liner plate pressing plate 15 abrasion-proof backing block 16 is fixed to the inwall of base 17, and abrasion-proof backing block 16 is 30 ° with the angle of main shaft; Middle body 11 connects into integral body through upper and lower bolt and spindle bearing holder 9 with base 17, and middle body 11 is provided with access door 8, is used to overhaul the gap of grinding roller, replacing bearing, filling butter, adjustment grinding roller and liner plate.Middle internal body is provided with blocking material ring 12, when material falls, can guarantee that material gets in the grinding roller smoothly, prevents that material from flying upward; Spindle bearing holder 9 is provided with two charging apertures; Guarantee the blanking uniformity of material, main shaft is installed on the bearing block 9, and spreading disk 10 is fixed on the main shaft through key with floral disc 14; rocking arm 13 and floral disc 14 are connected through hinge; rocking arm 13 lower ends are equipped with grinding roller 19, and grinding roller 19 passes through the relation of bearing and rocker arm shaft maintenance relative motion, and promptly grinding roller 19 can also can rotate around the grinding machine spindle centerline around rocker arm shaft self rotation.The main shaft epimere is equipped with belt pulley 6.
Grinding roller 19 on the rocking arm 13 is fixed on the grinding roller core 20 through grinding roller pressure ring 32, after grinding roller may wear to a certain degree like this, can be convenient for changing grinding roller; On the grinding roller core 20 through asbestos packing 21, grinding roller end cap 22, grinding roller cover 26 thoroughly, outside framework oil seal 27 and dust cover 23 formed good sealing and dustproof structure, improved the working environment of bearing, improved the lubricant effect of bearing greatly.
The installing hole of with rocking arm 13 hinged places hinge being installed on the floral disc 14 is a demountable structure, and floral disc 14 is provided with to be breathed out volt and cover 35, breathes out volt and cover 35 and pass through dormant bolt and be connected with floral disc 14, so conveniently to the installation and removal of rocking arm.