CN208131164U - The reverse difference compensation technique of Raymond mill and novel grinding roll of Raymond mill structure - Google Patents

Abstract

The utility model belongs to chemical industry carbon product processing technology and equipment, specifically a kind of reverse difference compensation technique of Raymond mill and novel grinding roll of Raymond mill structure, novel grinding roll of Raymond mill structure, including：Transmission shaft, grinding roller, key, positioning sleeve, expansion set and round nut, the outside installation key of transmission shaft, the outer sheath of key fill positioning sleeve, and expansion set is installed on the outside of positioning sleeve, and grinding roller is installed on the outside of expansion set, and transmission shaft end installs double round nut；The utility model improves stock utilization, and extends the service life of two major parts, reduce equipment maintenance quantity and save the human assistance time.

Description

The reverse difference compensation technique of Raymond mill and novel grinding roll of Raymond mill structure

Technical field：

The utility model belongs to chemical industry carbon product processing technology and equipment, specifically a kind of reverse difference of Raymond mill Compensate technique and novel grinding roll of Raymond mill structure.

Background technique：

It is especially engaged in the unit of carbon product production in chemical industry, important milling process equipment generallys use thunder It covers and grinds, there are two major part grinding roller and bull rings in Raymond mill, and in rigid mounted old-fashioned grinding roller and bull ring, shaft of grinding roller is branch Support is on the plum blossom frame axis, and plum blossom frame is installed on Raymond mill main shaft and is attached by key, and bull ring is to be fixed on bottom Motionless on seat, the outer circle of grinding roller is tangent with the inner circle of bull ring under the action of compression spring above transmission shaft, tangent position tool There is certain pressure, grinding roller carries out high speed rotation under the drive of main shaft plum blossom frame, generates relative rolling friction, raw material with bull ring Be crushed into powder into the phase section of grinding roller and bull ring, the powder ground continuously blows into storage hopper by air blower, newly into Enter the intracorporal raw material of Raymond mill shell to be constantly grated, and forms circulation production.Grinding roller and bull ring are all there are no when abrasion, grinding roller Shaft centre line is parallel with main-shaft axis.As the continuity of the duration of runs generates therebetween abrasion, the outer circle of grinding roller is reducing, The internal diameter of bull ring is expanding, and shaft of grinding roller is pivoted under spring pressure effect, when grinding roller outer diameter is milled to 280mm, under bull ring End internal diameter is also milled to 988mm, and shaft of grinding roller is pivoted 3.5 ° of tilt angles close to the limit under spring pressure, at this moment spring pressure It has discharged and has finished, lost grinding capacity, the grinding roller bull ring only more renewed can just work on.

While rolling friction grinds raw material, grinding roller and bull ring all generate certain abrasion, since Raymond mill itself is tied The limitation of structure causes grinding roller and bull ring often only to wear a part in use, cannot reuse, wherein bull ring is generally ground Damage 39% will be scrapped and the part that more renews, and the utilization rate of grinding roller is lower, and outside diameter may wear to directly from 310mm 280mm is just needed to change.In addition for grinding roller piece weight up to 96 kilograms, manufacturing cost is very high, and utilization rate only 19.5%, grinding roller is scrapped When outside diameter be 280mm, weight is at 77 kilograms.Such result is first is that waste metal material, second is that service life is short, frequently Halt production renewal part directly affect production.A variety of methods were once taken in practice, but were produced effects less, the material use of part Rate and the service life of grinding roller and bull ring are not solved at all.

Summary of the invention：

Therefore, in view of the problems of the existing technology, present applicant proposes one kind to be able to extend grinding roll of Raymond mill, bull ring makes With the method and a kind of novel grinding roll of Raymond mill structure in service life.

The reverse difference compensation technique of Raymond mill, includes the following steps：It (1) the use of outer diameter is for the first time the grinding roller of 310mm and interior Diameter is the bull ring of 950mm, carries out grinding work；(2) bull ring is changed when grinding roller outer diameter wears up to 280mm, installation internal diameter is The bull ring of 920mm, so that the center of shaft of grinding roller and main shaft is away from remaining unchanged, and the axis parallel of this two axis；(3) with grinding Work carries out, and grinding roller and bull ring are all worn, and grinding roller is pivoted under spring pressure effect, when grinding roller outer diameter is worn up to When 250mm, bull ring bore wear to 953mm, spring pressure, which has discharged, at this time is finished, and shaft of grinding roller pivoting angle reaches pole Limit needs replacing the larger grinding roller of outer diameter and restores spring pressure, can just work normally；(4) grinding roller after removing abrasion, will be outer Diameter is that the grinding roller of 310mm is mounted on bull ring, and shaft of grinding roller restores parallel with spindle axis line again at this time, can work on；(5) work When work wears up to 280mm to grinding roller outer diameter, bull ring internal diameter also wears up to 990mm, and spring pressure is discharged again and finished at this time, shaft of grinding roller Rotation angle around main shaft also reaches capacity, then the bull ring after abrasion is changed, and reinstalls the bull ring that internal diameter is 920mm, mill Ring internal diameter, which becomes smaller, pushes grinding roller mobile to main shaft rotation center, and shaft of grinding roller restores parallel with spindle axis line again, and grinding roller restores bullet Spring pressure continues to work normally, and loops back and forth like this.

Novel grinding roll of Raymond mill structure, including：Transmission shaft, grinding roller, key, positioning sleeve, expansion set and round nut, transmission shaft it is outer Side installation key, the outer sheath of key fill positioning sleeve, and expansion set is installed on the outside of positioning sleeve, and grinding roller, transmission shaft end peace are installed on the outside of expansion set Fill double round nut.Between transmission shaft and positioning sleeve installation key be for driving torque expansion set is installed between grinding roller and positioning sleeve, and Positioning sleeve is fixed on transmission shaft with round nut, grinding roller internal diameter can either be expanded in this way, and can be with the side of elastic expansion set bolt The more convenient handling grinding roller of formula, while the piece weight and cost of manufacture of grinding roller are also reduced, meet new process Use demand.

The utility model has the following advantages that：Make grinding roller piece weight by original in the case where not changing original effect 96 kilograms are reduced to 50 kilograms, and the manufacturing cost of one-piece part reduces 48%.Grinding roller excircle dimension is from diameter after improvement 310mm is milled to 250mm, and weight is milled to 15 kilograms from 50 kilograms, and stock utilization increases to 70.3% by original 19.5%, bull ring Stock utilization increase to 57% by original 39%, increase 18%.Originally one secondary grinding roller uses about 90 days, by abrasion meter It calculates, can be used about 170 days after process reform, while having saved a set of bull ring again.Stock utilization is improved, and is extended The service life of two major parts reduces equipment maintenance quantity and saves the human assistance time.

Detailed description of the invention：

Fig. 1 is the schematic diagram of novel grinding roll of Raymond mill structure.

In figure：Transmission shaft 1, grinding roller 2, key 3, positioning sleeve 4, expansion set 5 and round nut 6.

Specific embodiment：

The reverse difference compensation technique of Raymond mill, includes the following steps：It (1) the use of outer diameter is for the first time the grinding roller of 310mm and interior Diameter is the bull ring of 950mm, carries out grinding work；(2) bull ring is changed when grinding roller outer diameter wears up to 280mm, installation internal diameter is The bull ring of 920mm, so that the center of shaft of grinding roller and main shaft is away from remaining unchanged, and the axis parallel of this two axis；(3) with grinding Work carries out, and grinding roller and bull ring are all worn, and grinding roller is pivoted under spring pressure effect, when grinding roller outer diameter is worn up to When 250mm, bull ring bore wear to 953mm, spring pressure, which has discharged, at this time is finished, and shaft of grinding roller pivoting angle reaches pole Limit needs replacing the larger grinding roller of outer diameter and restores spring pressure, can just work normally；(4) grinding roller after removing abrasion, will be outer Diameter is that the grinding roller of 310mm is mounted on bull ring, and shaft of grinding roller restores parallel with spindle axis line again at this time, can work on；(5) work When work wears up to 280mm to grinding roller outer diameter, bull ring internal diameter also wears up to 990mm, and spring pressure is discharged again and finished at this time, shaft of grinding roller Rotation angle around main shaft also reaches capacity, then the bull ring after abrasion is changed, and reinstalls the bull ring that internal diameter is 920mm, mill Ring internal diameter, which becomes smaller, pushes grinding roller mobile to main shaft rotation center, and shaft of grinding roller restores parallel with spindle axis line again, and grinding roller restores bullet Spring pressure continues to work normally, and loops back and forth like this.

Please refer to novel grinding roll of Raymond mill structure as shown in Figure 1, including transmission shaft 1, grinding roller 2, key 3, positioning sleeve 4, swollen Set 5 and round nut 6, the outside installation key 3 of transmission shaft 1, the outer sheath of key 3 fill positioning sleeve 4, install expansion set 5 on the outside of positioning sleeve 4, Grinding roller 2 is installed, round nut 6 is installed in 1 end of transmission shaft on the outside of expansion set 5.

Installation key is expansion set to be installed between grinding roller and positioning sleeve, and use for driving torque between transmission shaft and positioning sleeve Positioning sleeve is fixed on transmission shaft by round nut, can either expand grinding roller internal diameter in this way, and can be in a manner of elastic expansion set bolt More convenient handling grinding roller, while the piece weight and cost of manufacture of grinding roller are also reduced, meet making for new process Use demand.

Embodiment：

1. transmission shaft component assemble, first, in accordance with the improved drive shaft cartridge figure of Fig. 1 successively install flat key, positioning sleeve, Double round nut is loaded onto and screwed, positioning sleeve axial restraint is made.Left end set of books, grinding roller, right end set of books are sequentially sleeved in positioning sleeve In outer circle, two sets of books are pushed into respectively in the hole of grinding roller, in set of books inner face and hole step end face by flat, grinding roller end face with calmly Position set end face alignment, fastens each bolt of set of books circumference with torque handle, that is, completes to improve inter-axle shaft assembly.

2. integral installation need to be with former bull ring when using new design grinding roller for the first time because new design bull ring internal diameter reduces 30mm Pairing uses, and the bull ring that former inner hole is 950mm is installed in place, 4 assembled transmission shaft components are attached to Raymond mill plum blossom frame Upper fixation, at this moment transmission shaft axial line is parallel with spindle axis line, and starting device is under the action of holddown spring outside four grinding rollers It is round to be milled with the close contact of bull ring internal circular surfaces, work normally equipment.It is run 90 days or so in equipment, opens inspection hole Measurement, when grinding roller may wear to diameter 280mm, bull ring is also ground to dimension limit, and holddown spring is ineffective, and shaft of grinding roller is revolved around axis Gyration also arrives the limit, loses normal work ability, and at this moment grinding roller is motionless, changes the bull ring that diameter of bore after improving is 920mm, New design bull ring keeps transmission shaft axial line parallel with the recovery of spindle axis line, holddown spring restitution, equipment can continue again into Inspection hole detection is opened in row work after equipment reuses 80 days, and when grinding roller diameter is ground to 250mm, bull ring internal diameter is about ground To 952mm or so, compression spring is ineffective again, and grinding roller outer circle and bull ring inner surface do not have pressure, and roll shaft is pivoted angle Degree reaches capacity again.At this moment bull ring is motionless, changes assembled 4 groups of diameters 310mm grinding roller after improvement, restores two axial lines Parallel and spring pressure makes equipment be transferred to normal operation, and enters next working cycles.

Grinding roller excircle dimension is milled to 250mm from diameter 310mm after improvement, and weight is milled to 15 kilograms from 50 kilograms, material benefit Increase to 70.3% by original 19.5% with rate, the stock utilization of bull ring increases to 57% by original 39%, increases 18%. Originally one secondary grinding roller uses about 90 days, calculates, can be used about 170 days after process reform, while having saved one again by abrasion amount Cover bull ring.Stock utilization is improved, and extends the service life of two major parts, reduce equipment maintenance quantity and saves The human assistance time is saved.

It will be understood by those skilled in the art that some repair can be made to the utility model under the guidance of this specification Change and adjusts.These modifications and adjustment should also be as in the utility model claims limited range.

Claims (1)

1. novel grinding roll of Raymond mill structure, it is characterised in that：Transmission shaft, grinding roller, key, positioning sleeve, expansion set and round nut, transmission shaft Outside installation key, the outer sheath of key fills positioning sleeve, expansion set installed on the outside of positioning sleeve, and grinding roller, transmission shaft end are installed on the outside of expansion set End installation double round nut.