CN105268371A - Separated pressure roller - Google Patents
Separated pressure roller Download PDFInfo
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- CN105268371A CN105268371A CN201510627313.4A CN201510627313A CN105268371A CN 105268371 A CN105268371 A CN 105268371A CN 201510627313 A CN201510627313 A CN 201510627313A CN 105268371 A CN105268371 A CN 105268371A
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- pressure roller
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Abstract
The invention relates to a separated pressure roller. The separated pressure roller comprises a pressure roller shell and a pressure roller core, the pressure roller shell is an outer pressure roller, the pressure roller core is an inner pressure roller, the upper surface and the lower surface of the pressure roller core are respectively provided with three groups of fixed holes, comprising 6 fixed holes, the three groups of fixed groups are uniformly distributed in the circumference direction, the fixed holes are matched with a fixing part for fixing the pressure core on a bearing cap plate, and the external surface of the pressure roller core is provided with a groove recessing toward the internal surface; and the fixing part can be a fixing screw, a fixing bolt or a fixing pin; the pressure roller shell is an annular cylindrical structure, the pressure roller shell comprises a part close to an axle center and a part far from the axle center, the two parts have different thicknesses in the axial direction, the thickness of the part close to the axle center of the pressure roller shell is consistent with the thickness of the pressure roller core, the thickness of the part far from the axle center is smaller than the thickness of the pressure roller core, the upper surface and the lower surface of the pressure roller shell are respectively provided with a transition step surface, and the transition step surface is an interface of the part close to the axle center of the pressure roller shell and the part far from the axle center of the pressure roller shell. The above provided pressure roller structure has the advantages of firm fixation of the inner pressure roller and the outer pressure roller, uniform force transition between the inner pressure roller and the outer pressure roller, convenient dismounting, reduction of the mold pressing temperature of the outer pressure roller, and reduction of the pressure roller replacement cost.
Description
Technical field
The present invention relates to a kind of granulator pressure roller, particularly the split type pressure roller of one.
Background technology
The operation principle of ring die pelleter is through modified comminuting matter by skewed slot through compression mold cover, feeds with rotating the even action of centrifugal force and the feeding scraper produced in the press-space in ring mould by means of gravity and ring mould.Under the strong squeezing action of ring mould and pressure roller, material is compacted gradually, to clamp-on in the nib of ring mould and to be shaped in nib, because the extruding of material between mould roller is continuous print, therefore the material after being shaped constantly is discharged in column from nib, is then cut into the particle of Len req by cutting knife.
In granulation process, pressure roller is the core work parts of ring die pelleter, is made up of parts such as pressure roller shell, accentric support axle, bearing, seals.During work, accentric support axle is fixed, and pressure roller shell rotates, and pressing materials, make material form particle by the nib of mould.Pressure roller is used to pressure roller pressing materials, and makes material from the ring die pelleter specialized spare part of nib extrusion molding.For increasing the frictional force of pressure roller appearance, generally pressure roller appearance is made different shaped structure, as: surface step type.
In the above-mentioned course of work, carry out work by extruding material therebetween between pressure roller shell and mould, large by force intensity in the pressure roller shell course of work, the pressure roller shell rate of wear is very fast, for ensureing granulation efficiency and quality, after needing work a period of time, the new pressure roller shell of dismounting and change is carried out to the pressure roller shell worn and torn.
In prior art, pressure roller shell mostly is overall structure, and the inner headed face of pressure roller shell connects pressure roller shaft by bearing, and the periphery of pressure roller shell and mould extrude granulated material and granulate.Because pelletization middle (center) bearing needs to lubricate, so be also provided with the seal of various different modes between pressure roller shell and pressure roller shaft.There is following problem in integral type pressure roller: pressure roller shell is as a whole, after its part wears, needs entirety to change; The miscellaneous part of press roll component is affected: bearing and seal are installed during integral replacing; And the dismounting of associated seal and fixture, installation and affect bearing and seal cooperation precision and reduce their normal service life.
On this basis, in prior art, also there is a kind of split type pressure roller shell, as Chinese patent CN204261637U, only need change pressure roller shell body after this pressure roller shell weares and teares at every turn, the maintenance cost of pressure roller shell reduces greatly, and need not dismantle, bearing and seal are installed, time saving and energy saving; While minimizing pressure roller shell changes maintenance cost, also increase the service life of associated seal and fixture.But still there is the problem of the following aspects in above-mentioned split type roller structure: pressure roller shell body 1 is directly fixed by socket on pressure roller inner housing 4, the axial height of pressure roller shell body 1 is less than the axial height of pressure roller inner housing 4, cause the transmission of torsion between pressure roller shell body 1 and pressure roller inner housing 4 there is no transition, easily cause torsion transmitting portions stressed excessive; In addition, fix by means of only holddown groove 3 and fixed stop between pressure roller inner housing 4 and pressure roller shell body 1, holddown groove and fixed stop are only arranged in one end of the axial direction of pressure roller shell body 1, this fixed form built on the sand and discontinuity, cause the easy stressed damage of standing part, thus affect pressure roller and normally work; Above-mentioned fixed form assembling is also comparatively complicated.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of inside and outside pressure roller and to fix between more firm, inside and outside pressure roller stressed transition evenly and the roller structure of easy accessibility, and decrease the pressure temperature of rubbing of outer pressure roller, reduce the cost changing pressure roller.
Split type pressure roller shell comprises pressure roller shell and pressure roller core.Herein, pressure roller shell i.e. outer pressure roller, pressure roller core and inner press roll.
Pressure roller core is a circular cylindrical structure, the upper surface of pressure roller core and lower surface all have three groups of fixing holes, i.e. 6 fixing holes, three groups of holes are uniformly distributed in a circumferential direction, fixing hole is supporting with the fixed part be fixed on bearing cover by pressure roller core, pressure roller core outer surface has a groove be recessed into inner surface; Fixed part can be hold-down screw, set bolt or steady pin;
Pressure roller shell comprises near the part in axle center and the part away from axle center, these two parts thickness is in the axial direction different, the segment thickness of pressure roller shell near axle center and pressure roller core consistency of thickness, segment thickness away from axle core is less than the thickness of pressure roller core, pressure roller shell upper and lower surface all has a transition bench terrace, and namely this transition bench terrace is the part of pressure roller shell near axle center and the interface of pressure roller shell away from axial portions; The part of pressure roller shell near axle center has 3 equally distributed through holes of circumference, pressure roller shell inner surface has the projection that exterior surface is protruded, the groove match on this projection and pressure roller core outer surface;
On roller bearing cover plate, on the installation site of corresponding pressure roller core fixing hole, offer three groups of corresponding holes respectively, consider the stressing conditions of roller bearing cover plate, three groups of holes are uniformly distributed in a circumferential direction, are namely circumferentially uniformly distributed 6 holes; There are inside roller bearing cover plate two through holes;
Fixed part can be hold-down screw, set bolt, gim peg, fixed stop, steady pin; By the fixed structure on the upper and lower surface of pressure roller core, can easily pressure roller core be fixed on upper and lower bearing cover; Thus make pressure roller core fixing firm;
Said structure makes in this device busy process, after pressure roller shell body is squeezed and produces wearing and tearing, is directly carried out changing by pressure roller shell body after the dismounting of pressure roller inner housing.
As the further improvement to the technical program, described pressure roller in-core side is provided with sealing device, and sealing device side is outward extended with projection, achieves dual-seal, substantially increases sealing effectiveness.Because each projection is separated, the independent deformation when being out of shape, therefore can fit by sealer better, sealing effectiveness be outstanding especially.
The material of pressure roller shell and pressure roller core is 9Cr2Mo steel alloy, 40Cr or local and is manufactured by metal matrix composite materials (MMC).
In addition, eccentric shaft main shaft offers body frame shaft seal, increase a set of sealing device in main shaft 6 lower end.
Fig. 1 is the overall sectional view of the split type pressure roller shell of prior art.
Fig. 2 is the sectional view of split type pressure roller core of the present invention.
Fig. 3 is the sectional view of split type pressure roller core of the present invention.
Fig. 4 is the plane of the pressure roller shell of split type pressure roller shell of the present invention.
Fig. 5 is the sectional view of the pressure roller shell of split type pressure roller shell of the present invention.
Fig. 6 is the plane of split type roller bearing lid of the present invention.
Fig. 7 is the sectional view of split type roller bearing lid of the present invention.
Fig. 8 is the plane of split type roller bearing lid of the present invention.
Description of reference numerals:
1 '-pressure roller shell body; 2 '-circlip; 3 '-holddown groove; 4 '-pressure roller inner housing; 5 '-annular projection; 6 '-seal groove; 7 '-circlip slot
1-eccentric shaft, 2-round nut, 3-stop washer, 4-spacer, 5-bearing cover, 6-hexagon socket cap head screw, 7-outside framework oil seal, 8-taper roll bearing, 9-spacer ring, 10-pressure roller shell, 11-O shape sealing ring, 12-O shape sealing ring, 13-pressure roller core, 14-isolates flat key
Detailed description of the invention
As shown in Figure 1, split type pressure roller shell structure of the prior art as shown in the figure;
As shown in Figure 2, split type pressure roller shell comprises pressure roller shell and pressure roller core.Herein, pressure roller shell i.e. outer pressure roller, pressure roller core and inner press roll.
As shown in Figure 3-4, pressure roller core is a circular cylindrical structure, the upper surface of pressure roller core and lower surface all have three groups of fixing holes, i.e. 6 fixing holes, three groups of holes are uniformly distributed in a circumferential direction, fixing hole is supporting with the fixed part be fixed on bearing cover by pressure roller core, pressure roller core outer surface has a groove be recessed into inner surface; Fixed part can be hold-down screw, set bolt or steady pin; There is between inside and outside pressure roller an isolation flat key.
As seen in figs. 5-6, pressure roller shell comprises near the part in axle center and the part away from axle center, these two parts thickness is in the axial direction different, the segment thickness of pressure roller shell near axle center and pressure roller core consistency of thickness, segment thickness away from axle core is less than the thickness of pressure roller core, pressure roller shell upper and lower surface all has a transition bench terrace, and namely this transition bench terrace is the part of pressure roller shell near axle center and the interface of pressure roller shell away from axial portions; The part of pressure roller shell near axle center has 3 equally distributed through holes of circumference, pressure roller shell inner surface has the projection that exterior surface is protruded, the groove match on this projection and pressure roller core outer surface;
As shown in Figure 7, on roller bearing cover plate, on the installation site of corresponding pressure roller core fixing hole, offer three groups of corresponding holes respectively, consider the stressing conditions of roller bearing cover plate, three groups of holes are uniformly distributed in a circumferential direction, are namely circumferentially uniformly distributed 6 holes; There are inside roller bearing cover plate two through holes;
Fixed part can be hold-down screw, set bolt, gim peg, fixed stop, steady pin; By the fixed structure on the upper and lower surface of pressure roller core, can easily pressure roller core be fixed on upper and lower bearing cover; Thus make pressure roller core fixing firm;
Said structure makes in this device busy process, after pressure roller shell body is squeezed and produces wearing and tearing, is directly carried out changing by pressure roller shell body after the dismounting of pressure roller inner housing.
As the further improvement to the technical program, described pressure roller in-core side is provided with sealing device, and sealing device side is outward extended with projection, achieves dual-seal, substantially increases sealing effectiveness.Because each projection is separated, the independent deformation when being out of shape, therefore can fit by sealer better, sealing effectiveness be outstanding especially.
The material of pressure roller shell and pressure roller core is 9Cr2Mo steel alloy, 40Cr or local and is manufactured by metal matrix composite materials (MMC).
Claims (9)
1. a split type pressure roller, comprise pressure roller shell and pressure roller core, it is characterized in that: pressure roller core is a circular cylindrical structure, the upper surface of pressure roller core and lower surface all have three groups of fixing holes, i.e. 6 fixing holes, three groups of holes are uniformly distributed in a circumferential direction, fixing hole with the fixed part that pressure roller core is fixed on bearing cover is matched, pressure roller core outer surface has one to the recessed groove of inner surface;
Pressure roller shell comprises near the part in axle center and the part away from axle center, these two parts thickness is in the axial direction different, pressure roller shell is near the thickness of the part in axle center and pressure roller core consistency of thickness, segment thickness away from axle core is less than the thickness of pressure roller core, pressure roller shell upper and lower surface all has a transition bench terrace, and namely this transition bench terrace is the part of pressure roller shell near axle center and the interface of pressure roller shell away from axial portions; Pressure roller shell inner surface has the projection that exterior surface is protruded, the groove match on this projection and pressure roller core outer surface; There is between inside and outside pressure roller an isolation flat key.
2. split type pressure roller as claimed in claim 1, is characterized in that: the part of pressure roller shell near axle center has 3 through holes be uniformly distributed circumferentially.
3. split type pressure roller as claimed in claim 1 or 2, it is characterized in that: also comprise roller bearing cover plate, on roller bearing cover plate, on the installation site of corresponding pressure roller core fixing hole, offer three groups of corresponding holes respectively, consider the stressing conditions of roller bearing cover plate, three groups of holes are uniformly distributed in a circumferential direction, are namely circumferentially uniformly distributed 6 holes; There are inside roller bearing cover plate two through holes; Installation site on, offer three groups of corresponding holes respectively, consider the stressing conditions of roller bearing cover plate, three groups of holes are uniformly distributed in a circumferential direction, are namely circumferentially uniformly distributed 6 holes; There are inside roller bearing cover plate two through holes.
4. split type pressure roller as claimed in claim 1 or 2, is characterized in that: fixed part can be hold-down screw, set bolt, gim peg, fixed stop, steady pin; By the fixed structure on the upper and lower surface of pressure roller core, can easily pressure roller core be fixed on upper and lower bearing cover; Thus make pressure roller core fixing firm.
5. split type pressure roller as claimed in claim 3, is characterized in that: fixed part can be hold-down screw, set bolt, gim peg, fixed stop, steady pin; By the fixed structure on the upper and lower surface of pressure roller core, can easily pressure roller core be fixed on upper and lower bearing cover; Thus make pressure roller core fixing firm.
6. split type pressure roller as claimed in claim 1 or 2, is characterized in that: pressure roller in-core side is provided with sealing device, and sealing device side is outward extended with projection, achieves dual-seal, substantially increases sealing effectiveness.Because each projection is separated, the independent deformation when being out of shape, therefore can fit by sealer better, sealing effectiveness be outstanding especially.
7. split type pressure roller as claimed in claim 3, is characterized in that: pressure roller in-core side is provided with sealing device, and sealing device side is outward extended with projection, achieves dual-seal, substantially increases sealing effectiveness.Because each projection is separated, the independent deformation when being out of shape, therefore can fit by sealer better, sealing effectiveness be outstanding especially.
8. split type pressure roller as claimed in claim 1 or 2, is characterized in that: the material of pressure roller shell and pressure roller core is 9Cr2Mo steel alloy, 40Cr or local and is manufactured by metal matrix composite materials.
9. split type pressure roller as claimed in claim 3, is characterized in that: the material of pressure roller shell and pressure roller core is 9Cr2Mo steel alloy, 40Cr or local and is manufactured by metal matrix composite materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510627313.4A CN105268371A (en) | 2015-09-28 | 2015-09-28 | Separated pressure roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510627313.4A CN105268371A (en) | 2015-09-28 | 2015-09-28 | Separated pressure roller |
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| CN105268371A true CN105268371A (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510627313.4A Pending CN105268371A (en) | 2015-09-28 | 2015-09-28 | Separated pressure roller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108837776A (en) * | 2018-08-07 | 2018-11-20 | 安徽工业大学 | A kind of macro-organism matter flat-die grain forming device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202608092U (en) * | 2012-01-11 | 2012-12-19 | 农业部规划设计研究院 | Press roll of forming machine for biomass solid fuel |
| CN202606196U (en) * | 2012-04-27 | 2012-12-19 | 成都王安产业有限公司 | Detachable-type press roll |
| CN202951450U (en) * | 2012-06-20 | 2013-05-29 | 江苏牧羊集团有限公司 | Combined type press roll of granulation machine |
| CN204261637U (en) * | 2014-12-01 | 2015-04-15 | 莱州市成达机械有限公司 | Split type pressure roller shell |
| CN205235905U (en) * | 2015-09-28 | 2016-05-18 | 溧阳市正翔精密机械有限公司 | Split type compression roller |
-
2015
- 2015-09-28 CN CN201510627313.4A patent/CN105268371A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202608092U (en) * | 2012-01-11 | 2012-12-19 | 农业部规划设计研究院 | Press roll of forming machine for biomass solid fuel |
| CN202606196U (en) * | 2012-04-27 | 2012-12-19 | 成都王安产业有限公司 | Detachable-type press roll |
| CN202951450U (en) * | 2012-06-20 | 2013-05-29 | 江苏牧羊集团有限公司 | Combined type press roll of granulation machine |
| CN204261637U (en) * | 2014-12-01 | 2015-04-15 | 莱州市成达机械有限公司 | Split type pressure roller shell |
| CN205235905U (en) * | 2015-09-28 | 2016-05-18 | 溧阳市正翔精密机械有限公司 | Split type compression roller |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108837776A (en) * | 2018-08-07 | 2018-11-20 | 安徽工业大学 | A kind of macro-organism matter flat-die grain forming device and method |
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Application publication date: 20160127 |