CN102886916A - Pressure roller for biomass briquetting machine and machining method for pressure roller - Google Patents
Pressure roller for biomass briquetting machine and machining method for pressure roller Download PDFInfo
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- CN102886916A CN102886916A CN201210344384XA CN201210344384A CN102886916A CN 102886916 A CN102886916 A CN 102886916A CN 201210344384X A CN201210344384X A CN 201210344384XA CN 201210344384 A CN201210344384 A CN 201210344384A CN 102886916 A CN102886916 A CN 102886916A
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Abstract
The invention provides a pressure roller, in particular to a pressure roller for a biomass briquetting machine. A grinding ring is arranged on a pressure roller body. A plurality of antiskid grooves are distributed on the grinding surface of the grinding ring. A machining method for the pressure roller comprises the following steps of: performing normalizing thermal treatment on a blank to change the cutting performance of the blank and form a workpiece; performing rough machining, performing high-frequency quenching and high-temperature tempering on the workpiece to make the hardness of the workpiece reach HRC40 to 46; performing finish machining on the workpiece, and surfacing a starved area in the grinding ring by using a surface electrode; performing finish machining on the grinding ring, reserving the antiskid grooves with widths of 2 to 5mm and depths of 2 to 4mm on the grinding surface of the front end of the grinding ring; and cyaniding the workpiece to make the hardness of the workpiece reach HRC56 to 62. The hardness of the pressure roller can be greatly improved, and equipment shutdown caused by excessive materials or slip of the surface of the pressure roller can be prevented.
Description
Technical field
The present invention relates to a kind of pinch roller, especially a kind of pinch roller and processing method thereof for the biomass moulding device.
Background technology
At present, to the processing of existing pinch roller all with common iron by simple modified to increase its hardness and wear resistance, the pinch roller hardness of making through above-mentioned processing method can only reach HRC40 ~ 46.Because the hardness factor of this kind pinch roller is less, anti-wear performance is low, therefore, in use easily causes damage, can't use in a large number by cooperating equipment, has also increased the workman and has changed the required workload of pinch roller and the consuming cost in later stage.In addition, because the working face of pinch roller all is level and smooth shape structures, therefore, material is occurring too much or pinch roller will cause the equipment downtime that there is no need when skidding, thereby reducing the operating efficiency of equipment.
Summary of the invention
For the weak point of above-mentioned technology, the invention provides a kind of hardness that increases substantially pinch roller, and prevent because of material too much or pinch roller skid and cause the pinch roller and the processing method thereof that are used for the biomass moulding device of equipment downtime.
For achieving the above object, the invention provides a kind of pinch roller for the biomass moulding device, sidewall at described pinch roller body is provided with bull ring, and the front end face of described bull ring is abradant surface, is distributed with the anti-slip tank that a plurality of hierarchy structures are respectively 2 ~ 5mm and 2 ~ 4mm at described abradant surface.
Described anti-slip tank in the form of a ring, vertically or ramp-like configuration be distributed on the described abradant surface.
Home position at described pinch roller body is provided with the pinch roller bearing chamber, also is respectively equipped with for the sealing shroud to the bearing outside in the top and bottom of described pinch roller body sidewall and is fixed a plurality of screwed holes.
The present invention also provides the method for pinch roller in a kind of processing biological shaped device simultaneously, may further comprise the steps:
100, blank is carried out normalizing heat treatment changing its cutting ability, and form workpiece;
200, after processing through roughing, the outer rim of its blank is carried out high-frequency quenching and high tempering processing, make its hardness reach HRC40 ~ 46;
300, after processing through fine finishining, use surfacing welding that built-up welding is carried out in the scarce material zone in the bull ring;
400, bull ring is carried out fine finishining and processes after, slot at the abradant surface of bull ring front end, be respectively the anti-slip tank of 2 ~ 5mm and 2 ~ 4mm to form a plurality of hierarchy structures;
500, workpiece is carried out cyaniding and process, make its hardness reach HRC56 ~ 62.
Before step (100) is implemented, raw material need to be cast into blank, and the surface of blank reserves the allowance that thickness is 3mm.
Before step (200) was implemented, workpiece carries out roughing by the CA6140 lathe to it to be processed, and its surface stays the allowance that thickness is 0.5～1mm to end.
After roughing is processed, adopt 2350x16/1 radial drilling machine and M10 screw tap to form a plurality of screwed holes at the sidewall of workpiece.
In step (300), adopt the Fe-Cr-Mo-B surfacing welding that built-up welding is carried out in the scarce material zone in the bull ring.
In step (400), finish grind by top surface, lower surface and the abradant surface of cylindrical grinder to bull ring.
In step (400), adopt hand grinding tool and diamond disk to make on the abradant surface of bull ring front end and form a plurality of anti-slip tanks.
Compared with prior art, the present invention has the following advantages:
1, by a plurality of anti-slip tanks on the abradant surface can prevent pinch roller because of material too much or because the equipment downtime that there is no need that pinch roller skids and causes, to increase work efficiency;
2, be used on the pinch roller body sidewall sealing shroud of bearing outside is fixed a plurality of screwed holes by being arranged on, can prevent that dust from entering pinch roller internal sabotage bearing, to improve the bulk life time of pinch roller;
3, the pinch roller that adopts above-mentioned processing method to make, its hardness can reach HRC56 ~ 62, and the hardness (HRC40 ~ 46) considerably beyond existing pinch roller can make the wearability of pinch roller and the output of complete machine be improved; In addition owing to needn't often pinch roller be changed, also reduced rear current cost more than consuming and the workman changes the workload of pinch roller.
Description of drawings
Fig. 1 is the top view of pinch roller among the present invention;
Fig. 2 is the cutaway view of Fig. 1;
Fig. 3 and Fig. 4 are the schematic diagram of blank state in the processing method of the present invention;
Fig. 5 and Fig. 6 are the schematic diagram after roughing is processed in the processing method of the present invention;
Fig. 7 and Fig. 8 are the schematic diagram of finished product state in the processing method of the present invention.
Main symbol description is as follows:
1-pinch roller body 2-bull ring 3-pinch roller bearing chamber
5-bottom thread hole, 4-screw top hole 6-abradant surface
7-anti-slip tank 8-bull ring top surface 9-bull ring lower surface
10-dentalation 11-lacks the material zone
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
Such as Fig. 1 and shown in Figure 2, be provided with bull ring 2 at the sidewall of pinch roller body 1, this bull ring 2 is the integral type structure with pinch roller body 1, and is arranged on the middle part of pinch roller body 1.Home position at pinch roller body 1 is provided with two pinch roller bearing chambers 3, wherein, the first pinch roller bearing chamber is that the top surface by pinch roller body home position extends to form to its inside, the second pinch roller bearing chamber is that the lower surface by pinch roller body home position extends to form to its inside, also is provided with dividing plate between two pinch roller bearing chambers.Also be respectively equipped with for the sealing shroud to the bearing outside in the top and bottom of pinch roller body sidewall and be fixed a plurality of screwed holes, form screw top hole 4 and bottom thread hole 5 thereby a plurality of screwed hole is separately positioned on upper end and the upper end of bull ring 2.In the present embodiment, screw top hole 4 is four with the quantity in bottom thread hole 5, and is evenly distributed on the sidewall of pinch roller body.Screw top hole 4 is arranged on the outer wall of the first pinch roller bearing chamber, and bottom thread hole 5 is arranged on the outer wall of the second pinch roller bearing chamber.After the sealing shroud of bearing is arranged on the pinch roller bearing chamber, can prevent that dust from entering pinch roller internal sabotage bearing by screw top hole, bottom thread hole and the bolt that matches with it, to improve the bulk life time of pinch roller.
Front end face at top surface, lower surface and the sidewall of bull ring 2 carries out built-up welding to form overlay cladding by the Fe-Cr-Mo-B surfacing welding, the thickness of this overlay cladding is 2.5mm, can make bull ring have efficient anti-wear performance by the overlay cladding that forms after the built-up welding of Fe-Cr-Mo-B surfacing welding.
Front end face at bull ring 2 forms the abradant surface 6 with grinding effect, and the height of this abradant surface is identical with the thickness of bull ring.Be distributed with the anti-slip tank 7 that a plurality of hierarchy structures are respectively 2 ~ 5mm and 2 ~ 4mm at abradant surface 6, wherein, anti-slip tank ringwise structure, vertical structure or ramp-like configuration is distributed on the abradant surface.When anti-slip tank adopted vertical structure to distribute, its top end face top end face to the height of bottom end face and the abradant surface was identical to the height of bottom end face.Anti-slip tank by vertical structure can increase the coefficient of friction between abradant surface and the material, prevent pinch roller because of material too much or because the shutdown that there is no need that pinch roller skids and causes, to increase work efficiency.When anti-slip tank adopts ramp-like configuration to distribute, its top end face is the skewed bottom that extends to abradant surface by the top of abradant surface, shape has a certain degree between the top end face of anti-slip tank and the top of abradant surface, between the bottom end face of anti-slip tank and the bottom margin of abradant surface also shape have a certain degree.The anti-slip tank of ramp-like configuration can on the anti-slip tank basis of vertical structure, further improve the crushing effect to material.In addition, the hierarchy structure of anti-slip tank is set as respectively 2 ~ 5mm and 2 ~ 4mm, can avoids bull ring in the course of the work, because the hierarchy structure of anti-slip tank is excessive, and cause the fracture of the dentalation 10 between two adjacent anti-slip tanks; In addition, the hierarchy structure of anti-slip tank is set as above-mentioned size, can also prevents to be cleared because the material after pulverizing is gathered in the anti-slip tank, and cause the obstruction of anti-slip tank.
To shown in Figure 8, the present invention also provides the method for pinch roller in a kind of processing biological shaped device, may further comprise the steps such as Fig. 3:
100, blank is carried out normalizing heat treatment changing its cutting ability, and form workpiece;
200, after processing through roughing, workpiece is carried out high-frequency quenching and high tempering processing, make its hardness reach HRC40 ~ 46;
300, after processing through fine finishining, use surfacing welding that built-up welding is carried out in the scarce material zone in the bull ring;
400, bull ring is carried out fine finishining and processes after, slot at the abradant surface of bull ring front end, be respectively the anti-slip tank of 2 ~ 5mm and 2 ~ 4mm to form a plurality of hierarchy structures;
500, workpiece is carried out cyaniding and process, make its hardness reach HRC56 ~ 62.
Before step 100 is implemented, need to be that the ZG45 steel of 20kg are cast into blank with weight, and the surface of blank think that the centre bore benchmark reserves the allowance that thickness is 3mm.
In step 100, blank is heated to its 40 ~ 60 ℃ or higher temperature more than critical point, after insulation reaches complete austenitizing, in air, cool off.Learning after concrete experiment, blank need to be heated to 850 ° of C, the time of insulation is 120min, cools off in air.Blank after the casting improves the performance of ZG45 steel being refinement blank tissue through the heat treated main purpose of normalizing, obtains the tissue near poised state, makes grain refinement and distribution of carbides homogenising, removes the internal stress of material, reduces the hardness of material.
Before step 200 was implemented, workpiece need to carry out roughing to it by the CA6140 lathe to be processed, and makes its surface stay the allowance that thickness is 0.5 ~ 1mm; Then, form eight screwed holes that diameter is 8.5mm by 2350x16/1 radial drilling machine and M10 screw tap at the sidewall of workpiece again.
After the roughing of workpiece finished, workpiece being carried out quench hot when processing, temperature need to be heated to 850 ° of C, be 0.5s heat time heating time, and then insulation 80min puts into oil and cool off.When workpiece being carried out the high tempering processing, temperature need to be heated to 620 ° of C, then insulation 60min cools off in air.The edge of workpiece makes its hardness can reach HRC40 ~ 46 after process high-frequency quenching and high tempering processing.
Before step 300 is implemented, need to carry out fine finishining to workpiece by CA6140 lathe and YG10 cutter, reach to end the desired regulation of final finished.After fine finishining is finished dealing with, adopt the Fe-Cr-Mo-B surfacing welding that built-up welding is carried out in the scarce material zone 11 in the bull ring, make smooth intact weldering place of its built-up welding.Wherein, should lack the front end face that material zone 11 is distributed in bull ring top surface 8, bull ring lower surface 9 and sidewall, expect that to lacking the overlay cladding thickness that the zone carries out forming after the built-up welding is 2.5mm, can make bull ring have efficient anti-wear performance by the overlay cladding that forms after the built-up welding of Fe-Cr-Mo-B surfacing welding.
In step 400, at first, by cylindrical grinder the front end face of top surface, lower surface and the sidewall of bull ring is carried out fine grinding, make the top surface and the top surface of bull ring, the lower surface that lacks the regional overlay cladding of material and the lower surface same level setting of bull ring that lack the regional overlay cladding of material, make overlay cladding surface smoothing on the sidewall front end face forming abradant surface, thereby reach specified size.Then, adopt hand grinding tool and diamond disk to offer a plurality of grooves at abradant surface, to form a plurality of anti-slip tanks, wherein, anti-slip tank can be circulus, vertical structure or ramp-like configuration, and the hierarchy structure of anti-slip tank is set as respectively 2 ~ 5mm and 2 ~ 4mm.
In step 500, after processing through cyaniding, make carbon compound and nitrogen compound infiltrate its inside by the surface of workpiece to workpiece.The fine carbide that forms after carbon compound infiltrates can promote the diffusion of nitrogen, accelerates the formation of nitrogen compound.And nitrogen compound can improve the solubility of carbon compound conversely.In addition, carbon compound can also reduce fragility in nitrogen compound, and the compound layer that obtains after nitrogen compound carburet thing oozes altogether has good toughness, and hardness is high, and is wear-resisting, anti-corrosion, bite-resistant.
In step 500, the cyaniding processing method can be adopted existing salt bath nitrocarburizing method or gas nitrocarburizing method.In above-mentioned two kinds of methods, treatment temperature is 530～570 ℃, and temperature retention time is 1～3 hour.The nitrocarburizing method can not only improve fatigue life, wearability, the anticorrosive and bite-resistant ability of workpiece, and use equipment is simple, and small investment is easy to operate, and the time is short and workpiece distortion is little, sometimes can also give workpiece with appearance attractive in appearance.
The pinch roller that adopts above-mentioned processing method to make, its hardness can reach HRC56 ~ 62, considerably beyond the hardness HRC40 that has pinch roller now ~ 46, the wearability of pinch roller and the output of complete machine are improved, in addition, owing to needn't often pinch roller be changed, also reduced rear current cost more than consuming and the workman changes the workload of pinch roller.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. pinch roller that is used for the biomass moulding device, sidewall at described pinch roller body is provided with bull ring, the front end face of described bull ring is abradant surface, it is characterized in that, is distributed with the anti-slip tank that a plurality of hierarchy structures are respectively 2 ~ 5mm and 2 ~ 4mm at described abradant surface.
2. the pinch roller for the biomass moulding device according to claim 1 is characterized in that, described anti-slip tank ringwise structure, vertical structure or ramp-like configuration is distributed on the described abradant surface.
3. the pinch roller for the biomass moulding device according to claim 1, it is characterized in that, home position at described pinch roller body is provided with the pinch roller bearing chamber, also is respectively equipped with for the sealing shroud to the bearing outside in the top and bottom of described pinch roller body sidewall and is fixed a plurality of screwed holes.
4. a method of processing pinch roller described in the claim 1 is characterized in that, may further comprise the steps:
100, blank is carried out normalizing heat treatment changing its cutting ability, and form workpiece;
200, after processing through roughing, workpiece is carried out high-frequency quenching and high tempering processing, make its hardness reach HRC40 ~ 46;
300, after processing through fine finishining, use surfacing welding that built-up welding is carried out in the scarce material zone in the bull ring;
400, bull ring is carried out fine finishining and processes after, slot at the abradant surface of bull ring front end, be respectively the anti-slip tank of 2 ~ 5mm and 2 ~ 4mm to form a plurality of hierarchy structures;
500, workpiece is carried out cyaniding and process, make its hardness reach HRC56 ~ 62.
5. method according to claim 4 is characterized in that, before step (100) is implemented, raw material need to be cast into blank, and the surface of blank reserves the allowance that thickness is 3mm.
6. method according to claim 4 is characterized in that, before step (200) was implemented, workpiece carries out roughing by the CA6140 lathe to it to be processed, and its surface stays the allowance that thickness is 0.5 ~ 1mm to end.
7. method according to claim 6 is characterized in that, after roughing is processed, adopts 2350x16/1 radial drilling machine and M10 screw tap to form a plurality of screwed holes at the sidewall of workpiece.
8. method according to claim 4 is characterized in that, in step (300), adopts the Fe-Cr-Mo-B surfacing welding that built-up welding is carried out in the scarce material zone in the bull ring.
9. method according to claim 4 is characterized in that, in step (400), finish grindes by top surface, lower surface and the abradant surface of cylindrical grinder to bull ring.
10. according to claim 4 or the method described in 9, it is characterized in that, in step (400), adopt hand grinding tool and diamond disk to make on the abradant surface of bull ring front end and form a plurality of anti-slip tanks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210344384.XA CN102886916B (en) | 2012-09-17 | 2012-09-17 | Pressure roller for biomass briquetting machine and machining method for pressure roller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210344384.XA CN102886916B (en) | 2012-09-17 | 2012-09-17 | Pressure roller for biomass briquetting machine and machining method for pressure roller |
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| CN102886916A true CN102886916A (en) | 2013-01-23 |
| CN102886916B CN102886916B (en) | 2015-05-06 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104108011A (en) * | 2014-07-24 | 2014-10-22 | 成都亨通兆业精密机械有限公司 | Ring gauge production method |
| CN104117829A (en) * | 2014-07-24 | 2014-10-29 | 成都亨通兆业精密机械有限公司 | Method for manufacturing ring gauge convenient to use with GCr15 as base material |
| CN104128755A (en) * | 2014-07-24 | 2014-11-05 | 成都亨通兆业精密机械有限公司 | GCr15 ring gauge machining technology facilitating machining |
| CN104128756A (en) * | 2014-07-24 | 2014-11-05 | 成都亨通兆业精密机械有限公司 | Machining technology of ring gauges convenient to use |
| CN104128760A (en) * | 2014-07-24 | 2014-11-05 | 成都亨通兆业精密机械有限公司 | Machining technology of GCr15 ring gauges convenient to use |
| CN104128758A (en) * | 2014-07-24 | 2014-11-05 | 成都亨通兆业精密机械有限公司 | Ring gauge manufacturing method with GCR15 as base materials for facilitating machining |
| CN104227340A (en) * | 2014-07-24 | 2014-12-24 | 成都亨通兆业精密机械有限公司 | GCr15 ring gauge processing process capable of being conveniently processed mechanically and conveniently used |
| CN104499025A (en) * | 2014-12-03 | 2015-04-08 | 哈尔滨工业大学 | Compression roller for flat-die biomass molding machine and ceramic layer growth method of compression roller |
| CN105172333A (en) * | 2014-06-17 | 2015-12-23 | 上海运申制版模具有限公司 | Processing method of shaft head of printing press bent shaft board |
| CN105312847A (en) * | 2014-07-28 | 2016-02-10 | 陕西柴油机重工有限公司 | Machining method of diesel engine spherical pair parts |
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| CN201362000Y (en) * | 2009-01-21 | 2009-12-16 | 彭世润 | Replaceable bio-fuel extrusion die sleeve body and die plate |
| CN201669908U (en) * | 2010-03-24 | 2010-12-15 | 郑州金土地能源科技有限公司 | Biomass roll-forming combined pressing wheel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105172333A (en) * | 2014-06-17 | 2015-12-23 | 上海运申制版模具有限公司 | Processing method of shaft head of printing press bent shaft board |
| CN104108011A (en) * | 2014-07-24 | 2014-10-22 | 成都亨通兆业精密机械有限公司 | Ring gauge production method |
| CN104117829A (en) * | 2014-07-24 | 2014-10-29 | 成都亨通兆业精密机械有限公司 | Method for manufacturing ring gauge convenient to use with GCr15 as base material |
| CN104128755A (en) * | 2014-07-24 | 2014-11-05 | 成都亨通兆业精密机械有限公司 | GCr15 ring gauge machining technology facilitating machining |
| CN104128756A (en) * | 2014-07-24 | 2014-11-05 | 成都亨通兆业精密机械有限公司 | Machining technology of ring gauges convenient to use |
| CN104128760A (en) * | 2014-07-24 | 2014-11-05 | 成都亨通兆业精密机械有限公司 | Machining technology of GCr15 ring gauges convenient to use |
| CN104128758A (en) * | 2014-07-24 | 2014-11-05 | 成都亨通兆业精密机械有限公司 | Ring gauge manufacturing method with GCR15 as base materials for facilitating machining |
| CN104227340A (en) * | 2014-07-24 | 2014-12-24 | 成都亨通兆业精密机械有限公司 | GCr15 ring gauge processing process capable of being conveniently processed mechanically and conveniently used |
| CN105312847A (en) * | 2014-07-28 | 2016-02-10 | 陕西柴油机重工有限公司 | Machining method of diesel engine spherical pair parts |
| CN104499025A (en) * | 2014-12-03 | 2015-04-08 | 哈尔滨工业大学 | Compression roller for flat-die biomass molding machine and ceramic layer growth method of compression roller |
| CN104499025B (en) * | 2014-12-03 | 2017-11-03 | 哈尔滨工业大学 | A kind of ceramic layer growing method of flat-die biomass forming machine pressure roller |
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