CN102553681B - Grinding roller pressurization device for vertical mill - Google Patents

Grinding roller pressurization device for vertical mill Download PDF

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CN102553681B
CN102553681B CN201210032422.8A CN201210032422A CN102553681B CN 102553681 B CN102553681 B CN 102553681B CN 201210032422 A CN201210032422 A CN 201210032422A CN 102553681 B CN102553681 B CN 102553681B
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depression bar
support plate
supporting shaft
pressure rod
oil cylinder
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CN102553681A (en
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王华业
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Abstract

The invention discloses a grinding roller pressurization device for a vertical mill. The grinding roller pressurization device for the vertical mill comprises a compression roller component of which a compression rod front end is assembled with a grinding roller through a bearing, an end is sleeved with a compression stem casing, and is hinged with a compression oil cylinder piston rod front end through the compression stem casing, a middle part is sleeved with a compression bar support pin roll, and is hinged with a support device; the support device, in which two compression rod support board upper parts are respectively hinged with two ends of the compression bar support pin roll, and one compression bar support board is connected to a lock device; the compression oil cylinder of which a piston rod head is connected to the compression stem casing sleeved to the compression rod end by a hinge fulcrum shaft B; and a service oil cylinder of which the piston rod head is hinged with a front support of the service cylinder on the support device. The invention is characterized in that during grinding, the hydraulic thrust vertically acts on the grinding roller compression rod, heterotropic energy loss and horizontal components are reduced; and oil flows into an operating travel rodless cavity to reduce oil supply pressure, hydraulic leakage and wear, and idle work loss of diagonal tension and member loads. The invention belongs to the field of technical equipment of powder engineering, and is applied to grinding materials of vertical mills.

Description

Grinding roller pressurization device for vertical mill
Technical field
The invention belongs to technical field of powder engineering, be applied to vertical mill and roll granular material.
Background technology
The grinding roller pressurization device for vertical mill of existing technology is made " 7 " font lever mostly, one end is connected by bearing assemble with grinding roller, the other end is connected with hydraulic cylinder piston rod external part is hinged, " 7 " font angular vertex is connected with vertical mill casing frame is hinged, when hydraulic drive piston bar pulls " 7 " font lever one end, the grinding roller of the other end, by the hinging supporting shaft effect of " 7 " font angular vertex, is implemented to roll to the material on grinding disc of vertical mill.This vertical grinding roller pressue device major defect is:
1) for make to have on grinding roller pressure be vertically downward applied to tension on " 7 " font lever arm of force conventionally with arm of force oblique, thereby a part for hydraulic coupling is done idle work loss and increases member to load; 2) execute rod chamber work while carrying pulling force, charge oil pressure will increase by 30% on year-on-year basis, the probability increase of leaking and wearing and tearing; 3) pressue device is hinged on grinding machine shell, makes the whole increase of grinding machine shell manufacturing cost; 4) grinding roller maintenance and built-up welding must be routed up grinding machine, and grinding roller rotates around hinging supporting shaft, and grinding door must be higher, and the upset space of mill top must be larger.
Summary of the invention
The object of the invention is to provide a kind of grinding roller pressurization device for vertical mill that can overcome above-mentioned defect, during grinding work, hydraulic thrust vertically acts on grinding roller pressure rod, the oil-feed of impulse stroke rodless cavity, to reduce charge oil pressure, reduce hydraulic leak and wearing and tearing, reduce idle work loss and the member load of oblique pulling; According to grinding operating mode and the different motion requirements of maintenance operating mode to grinding roller, make pressure rod and depression bar support plate form hinged connection and the two kinds of modes that are rigidly connected, depression bar support plate forms hinged connection and the two kinds of modes that are rigidly connected with depression bar supporting base, two kinds of modes are staggered corresponding, the load requirement of supporting arrangement while both meeting grinding, upset space while reducing again grinding roller maintenance, has reduced vertical mill manufacturing cost.
The technical solution adopted in the present invention is:
Grinding roller pressurization device for vertical mill comprises:
Pressure roller parts, it comprises: pressure rod, grinding roller, pressure cuffs, depression bar supporting shaft; Pressure rod front end is connected by bearing assemble with grinding roller, rear end socket pressure cuffs, and by pressure cuffs and hinged connection of compressed oil cylinder piston rod front end, middle part socket depression bar supporting shaft, is connected with supporting arrangement is hinged,
Supporting arrangement, it comprises bearing before two depression bar support plates, depression bar supporting base, two distance blocks, depression bar supporting shaft, support plate hinging supporting shaft, support plate alignment pin, maintenance oil cylinder, locking device, bolt connection piece; Two depression bar support plate upper ends are connected with the pin-ended of depression bar supporting shaft respectively, and one of them depression bar support plate has just joined locking device, when pressure roller overhauls be just associated in the locking connecting pin aperture lock stressed joint on pressure rod; Between two depression bar support plates, by upper and lower two distance blocks, with bolt connection piece, form one, two lateral surfaces are affixed and use support plate hinging supporting shaft, support plate alignment pin double pin axle to be connected with depression bar supporting base inner side, all there is screw thread support plate hinging supporting shaft, support plate alignment pin one end, with nut, depression bar supporting base, depression bar support plate, lower distance block are compressed simultaneously; Upper distance block side connects the front bearing of maintenance oil cylinder, with maintenance cylinder piston rod hinged connection of head;
Pressurization oil cylinder, its piston rod head overlaps hinged connection with the pressure rod that is socketed in pressure rod rear end, its oil cylinder seat with pressurize that cylinder support top is hinged to be connected; Hinge position of the fulcrum should guarantee that compressed oil cylinder piston rod axis is perpendicular to pressure rod axis when grinding roller and mill have minimum working gap;
Maintenance oil cylinder, its piston rod head is connected with before maintenance oil cylinder on described supporting arrangement, bearing is hinged, its oil cylinder seat with pressurize that cylinder support bottom is hinged to be connected;
Described grinding roller pressurization device for vertical mill, wherein, described pressure rod is " one " font, and described pressure cuffs is domain type, and described depression bar supporting shaft is two ends coaxial pins, middle domain obvolvent depression bar middle part external diameter; One group of pin-and-hole of described pin-and-hole plate is distributed on a reference circle of described depression bar supporting shaft axial line;
Described grinding roller pressurization device for vertical mill, wherein, described locking device comprises a screw plate, is connected to described depression bar support plate side; A pin-and-hole plate, is connected to described pressure rod middle part, a locking double-screw bolt, and while screwing in screw plate, a pin-and-hole of pin-and-hole plate described in front end cylinder partial insertion, pressure rod is rigidly connected with depression bar support plate formation; When locking double-screw bolt screws out, screw plate and pin-and-hole plate are thrown off, and pressure rod forms hinged connection with depression bar support plate;
Described grinding roller pressurization device for vertical mill, wherein, the installation axis of described depression bar supporting shaft should guarantee that pressure rod axis is horizontal when grinding roller and mill have minimum working gap; The orthographic projection of the installation axis of depression bar supporting shaft drops in the plane of support plate hinging supporting shaft, support plate alignment pin institute envelope;
System is work like this:
During grinding material, the rodless cavity of pressurization oil cylinder enters pressure oil, and its piston rod head promotes pressure rod 8 by hinging supporting shaft B, pressure rod cover 7, and now the locking double-screw bolt of locking device screws out screw plate, throw off with pin-and-hole plate, pressure rod is around the axis rotation that is bearing in the depression bar supporting shaft of depression bar support plate; Grinding roller with pressure rod by bearing assemble presses to mill under the hinged effect of depression bar supporting shaft, the squeezing passage of the material rotating with mill between grinding roller and mill is able to grinding, and now depression bar supporting shaft is carried by support plate hinging supporting shaft and support plate alignment pin jointly to the pulling force of depression bar support plate; And pass to basis by the depression bar supporting base connecting with it, and tighten the nut being connected with support plate alignment pin one end with support plate hinging supporting shaft, depression bar support plate, depression bar supporting base, lower distance block are clamped to improve support stiffness; Two depression bar support plates are connected fastening with upper distance block after the diameter of axle of socket depression bar supporting shaft two ends with bolt connection piece; Before maintenance oil cylinder, bearing is connected with upper distance block; Pressure rod front end puts in sealing between grinding door place and grinding door and adopts soft connection;
When grinding roller maintenance need be routed up grinding door, described support plate alignment pin is extracted, described locking double-screw bolt screws in screw plate, one of them pin-and-hole of locking double-screw bolt nose circle post partial insertion pin-and-hole plate, and pressure rod can not rotate around depression bar supporting shaft axis; Extract hinging supporting shaft B, its piston rod and pressure rod cover are thrown off, and pressurization oil cylinder screws off around the hinging supporting shaft A that is bearing in pressurization cylinder support top; Maintenance oil cylinder rear end is connected with after maintenance oil cylinder, hinging supporting shaft is hinged with pressurization cylinder support bottom, maintenance oil cylinder front end is connected with before maintenance oil cylinder, hinging supporting shaft is hinged with bearing before maintenance oil cylinder, the oil-feed of maintenance cylinder rod chamber, pull the axis rotation around support plate hinging supporting shaft together with pressure rod, grinding roller of depression bar support plate, until grinding roller is routed up the outer maintenance of mill.
The invention has the beneficial effects as follows:
1 pressurization oil cylinder is exerted pressure perpendicular to pressure rod, can effectively utilize hydraulic coupling, and the energy while reducing oblique damages
The member cost that the horizontal component of becoming estranged is directed at;
2 pressurization oil cylinders are the little strokes of large load, and the oil-feed of impulse stroke rodless cavity is than the required fuel feeding of rod chamber oil-feed
Pressure falls 1/3 on a year-on-year basis, reduces wear and leakage probability, and can not cause strut buckling.
When grinding door is overturn out in 3 grinding rollers maintenance, around lower support plate hinging supporting shaft rotation, than around depression bar hinging supporting shaft
Rotation needs lower grinding door height, thereby reduces manufacturing cost.
Accompanying drawing explanation
Now in conjunction with diagram and embodiment, further illustrate:
Fig. 1 is fundamental diagram of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1;
Fig. 4 is the C-C cutaway view of Fig. 1.
Hinging supporting shaft after 1-maintenance oil cylinder; 2-overhauls oil cylinder; The 3-cylinder support that pressurizes; 4-hinging supporting shaft A; The 5-oil cylinder that pressurizes; 6-hinging supporting shaft B; 7-pressure rod cover; 8-pressure rod; Bearing before 9-maintenance oil cylinder; 10-locking device; 11-depression bar supporting shaft; 12-depression bar support plate; 13-bolt connection piece; The soft connection of 14-; 15-grinding roller; 16-grinding door; 17-mill; 18-depression bar supporting base; 19-support plate hinging supporting shaft; 20-support plate alignment pin; 21-nut; Distance block under 22-; The upper distance block of 23-; Hinging supporting shaft before 24-maintenance oil cylinder; 25-pin-and-hole plate; 26-screw plate; 27-locks double-screw bolt;
The specific embodiment
During grinding material, the rodless cavity of pressurization oil cylinder 5 enters pressure oil, its piston rod head promotes pressure rod 8 by hinging supporting shaft B6, pressure rod cover 7, now the locking double-screw bolt 27 of locking device 10 screws out screw plate 26, throw off with pin-and-hole plate 25, pressure rod is around the axis rotation that is bearing in the depression bar supporting shaft 11 on depression bar support plate 12; The grinding roller 15 assembling by bearing group with pressure rod presses to mill 17 under the hinged effect of depression bar supporting shaft, the squeezing passage of the material rotating with mill between grinding roller and mill is able to grinding, and now depression bar supporting shaft is carried by support plate hinging supporting shaft 19 and support plate alignment pin 20 jointly to the pulling force of depression bar support plate; And pass to basis by the depression bar supporting base 18 connecting with it, and tighten with the nut 21 that support plate alignment pin one end is connected with support plate hinging supporting shaft, depression bar support plate, depression bar supporting base, lower distance block 22 are clamped to improve support stiffness; Two depression bar support plates are connected fastening with upper distance block 23 use bolt connection pieces 13 after the diameter of axle of socket depression bar supporting shaft two ends; Before maintenance oil cylinder, bearing 9 is connected with upper distance block; Pressure rod front end puts in to adopt between grinding door 16 places and grinding door and softly connects 14 and carry out dust seal;
When grinding roller maintenance need be routed up grinding door, described support plate alignment pin is extracted, described locking double-screw bolt screws in screw plate, (pin-and-hole of diverse location can obtain the different inclination angle of pressure rod axis to one of them pin-and-hole of locking double-screw bolt nose circle post partial insertion pin-and-hole plate, adapting to maintenance requires), pressure rod can not rotate around depression bar supporting shaft axis; Extract hinging supporting shaft B, its piston rod and pressure rod cover are thrown off, and pressurization oil cylinder screws off around the hinging supporting shaft A4 that is bearing in pressurization cylinder support 3 tops; Maintenance oil cylinder rear end is connected with after maintenance oil cylinder, hinging supporting shaft 1 is hinged with pressurization cylinder support bottom, maintenance oil cylinder 2 front ends are connected with before maintenance oil cylinder, hinging supporting shaft 24 is hinged with bearing before maintenance oil cylinder, the oil-feed of maintenance cylinder rod chamber, pull the axis rotation around support plate hinging supporting shaft together with pressure rod, grinding roller of depression bar support plate, until grinding roller is routed up the outer maintenance of mill.

Claims (3)

1. a grinding roller pressurization device for vertical mill, is characterized in that, comprising:
Pressure roller parts, it comprises: pressure rod, grinding roller, pressure rod cover, depression bar supporting shaft; Pressure rod front end is connected by bearing assemble with grinding roller, rear end socket pressure rod cover, and overlap and hinged connection of compressed oil cylinder piston rod front end by pressure rod, middle part socket depression bar supporting shaft, is connected with supporting arrangement is hinged;
Supporting arrangement, it comprises bearing before two depression bar support plates, depression bar supporting base, upper distance block, lower distance block, depression bar supporting shaft, support plate hinging supporting shaft, support plate alignment pin, maintenance oil cylinder, locking device, bolt connection piece; Two depression bar support plate tops are connected with the pin-ended of depression bar supporting shaft respectively, one of them depression bar support plate connects locking device, between two depression bar support plates, by upper distance block, lower distance block, with bolt connection piece, form one, two lateral surfaces are affixed and use support plate hinging supporting shaft, support plate alignment pin double pin axle to be connected with depression bar supporting base inner side, all there is screw thread support plate hinging supporting shaft, support plate alignment pin one end, with nut, depression bar supporting base, depression bar support plate, lower distance block are compressed simultaneously; The side that upper distance block is not fitted with depression bar support plate is connected the front bearing of maintenance oil cylinder;
Pressurization oil cylinder, its piston rod head is applied mechanically hinging supporting shaft B with the pressure rod that is socketed in pressure rod rear end and is connected, and its oil cylinder seat is connected with hinging supporting shaft A with the top of pressurization cylinder support; Two hinging supporting shaft positions should guarantee that compressed oil cylinder piston rod axis is perpendicular to pressure rod axis when grinding roller and mill have minimum working gap;
Maintenance oil cylinder, its piston rod head is connected with before maintenance oil cylinder on described supporting arrangement, bearing is hinged, the hinged connection of bottom of its oil cylinder seat and the cylinder support that pressurizes.
2. grinding roller pressurization device for vertical mill according to claim 1, is characterized in that: the locking device of described supporting arrangement comprises a screw plate, is connected to described depression bar support plate side; A pin-and-hole plate, is connected to described pressure rod middle part, a locking double-screw bolt, according to locking double-screw bolt, screw in or whiz pin-and-hole plate, pressure rod and depression bar support plate form two kinds and are connected: during locking double-screw bolt whiz pin-and-hole plate, pressure rod forms hinged connection with depression bar support plate, the grinding roller that the pressurizes material of milling; When locking double-screw bolt screws in pin-and-hole plate, pressure rod and depression bar support plate formation are rigidly connected, and pressure roller parts rotate around support plate hinging supporting shaft together with depression bar support plate, rout up grinding door and overhaul outward.
3. grinding roller pressurization device for vertical mill according to claim 1, it is characterized in that: the pressure rod of described pressure roller parts is " one " font, described pressure rod cover is domain type, the cylinder coaxial line that stretch out at the two ends of described depression bar supporting shaft, the middle part external diameter of middle domain obvolvent pressure rod.
CN201210032422.8A 2012-02-04 2012-02-04 Grinding roller pressurization device for vertical mill Active CN102553681B (en)

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Application Number Priority Date Filing Date Title
CN201210032422.8A CN102553681B (en) 2012-02-04 2012-02-04 Grinding roller pressurization device for vertical mill

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Application Number Priority Date Filing Date Title
CN201210032422.8A CN102553681B (en) 2012-02-04 2012-02-04 Grinding roller pressurization device for vertical mill

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CN102553681B true CN102553681B (en) 2014-02-12

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2186110Y (en) * 1994-03-24 1994-12-28 倪文龙 Multi-roller vertical mill feeding from centre
CN2345280Y (en) * 1998-01-05 1999-10-27 王云 Vertical middle disintegrating mill
CN202516624U (en) * 2012-02-04 2012-11-07 王华业 Grinding roller pressure device for vertical grinding mill

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2186110Y (en) * 1994-03-24 1994-12-28 倪文龙 Multi-roller vertical mill feeding from centre
CN2345280Y (en) * 1998-01-05 1999-10-27 王云 Vertical middle disintegrating mill
CN202516624U (en) * 2012-02-04 2012-11-07 王华业 Grinding roller pressure device for vertical grinding mill

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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
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GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20120711

Assignee: Jiangsu Feipeng Heavy Equipment Co., Ltd.

Assignor: Wang Huaye

Contract record no.: 2014320000447

Denomination of invention: Grinding roller pressurization device for vertical mill

Granted publication date: 20140212

License type: Exclusive License

Record date: 20140528

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model