CN2615142Y - Squeezing roll for sugar cane press - Google Patents
Squeezing roll for sugar cane press Download PDFInfo
- Publication number
- CN2615142Y CN2615142Y CNU032515189U CN03251518U CN2615142Y CN 2615142 Y CN2615142 Y CN 2615142Y CN U032515189 U CNU032515189 U CN U032515189U CN 03251518 U CN03251518 U CN 03251518U CN 2615142 Y CN2615142 Y CN 2615142Y
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- roller
- layer
- cane
- masher
- shell
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Abstract
A cane masher roller relates to a technical sphere of cane masher machinery, which comprises a roller shaft and a roller shell, wherein the exterior of the roller shell is provided with many roller grooves and roller teeth. Roller surface of the roller shell is equipped with a laser treatment rigid layer of which surface roughness Ry is more than 100 microns. The laser treatment rigid layer comprises a melted coagulate layer and a phase-change buffer layer which is under the melted coagulate layer. Metallographic structure of the melted coagulate layer is ledeburite and metallographic structure of the phase-change buffer layer comprises martensite and basal corpuscle. The cane masher roller is arranged on a cane masher. Compared with existing technology, the cane masher roller can achieve long working life, high inoxidizability, good capability of entering the roller, high rate of abstraction of juice of sugar cane, and reposeful operation.
Description
Technical field
The utility model relates to cane milling machinery technical field.
Background technology
General three roll structures that adopt of press for extracting juice roller roller group of the press for extracting juice sugar machine on the cane sugar factory production line comprise face roller, preliminary roller and back roller, and every production line adopts five to six roller groups, and totally ten five to 18 are pressed roller.These press the roller profile diameter and mostly are 860 to 1200 millimeters greatly, and each presses roller and is combined by the roll shaft roller shell outer with being contained in roll shaft.Roll shaft mainly is the effect of transmitting rotary power; Roller shell appearance has multiple tracks annular roller groove, be the roller tooth between roller groove and the roller groove, the outer circumferential shape of the similar vee-belt belt wheel of shape of roller shell excircle, roller shell under arms the time roller groove and another press the roller tooth engagement of roller, it presses extruding sugarcane sugarcane body and bagasse between the roll surface of roller.At present, the material that presses roller roller shell all adopts the lower graphitic cast iron manufacturing of hardness, and its wear resistance and solidity to corrosion are all relatively poor.When pressing sugarcane, the roller groove face of working position and roller tooth crest top land are subjected to huge pressure and tangent direction friction power, in slightly acidic sugarcane juice bagasse, be mingled with the silt that thickness does not wait in addition, stone even ironware, therefore, roller shell surface abrasion phenomenon is quite serious, the roller tooth radially reaches ten thousand tons of sugarcanes of 0.2～0.5mm/ with roller groove face normal direction average abrasion, consequently the roller tooth becomes thin, surface grinding, just the phenomenon that sugarcane body and bagasse skid can appear a later stage of pressing season often in the roller groove, cause into the roller difficulty, squeezing amount and sucrose extraction reduce, and every not press for extracting juice phase must be taken off and be pressed the finishing processing that roller carries out roller tooth profile of tooth, reuses in season in order to press for extracting juice next time.Shaping processing repeatedly reduces roller tooth excircle dimension one by one, brings the progressively reduction of pressing the sugarcane ability.Generally operation factor greater than 90% situation under, one is pressed the multipotency of roller and uses two presses for extracting juice must scrap in season.For the rate of wear that reduces roller shell surface roll tooth, prolong and press roller work-ing life, make the sugarcane material go into roller smoothly, guarantee sugarcane-squeezing amount and sucrose extraction, people have adopted the multiple technologies measure.As on material, selecting the high phosphorus cast alloy iron for use, crushing roll teeth being adopted flame quenching or technology and the surperficial surface coarsening technology that form the loose pit of coarse material of surface electrical contact heat treatment process to improve surface hardness, there is employing pressing roller tooth top flame spurt welding hard, wear-resistant alloy material layer technology etc. in recent years again.Though these technology are gone into the roller ability certain help is arranged improving wear resistance and sugarcane, effect is still not satisfactory, has little significance.As the flame spurt welding technology, its quantities is big, and efficient is low, can not large-area built-up welding.If tooth top, groove face flank built-up welding simultaneously mechanically resistant material can be uneven because of surface shape, roller and the tolerance clearance of broach and the accuracy of mesh between roller are pressed in influence, increase the wearing and tearing of broach, and the squeezing sucrose extraction diminishes, and in addition, also increases the burden of follow-up roller group; If only at tooth top built-up welding mechanically resistant material, it is fast than tooth top the wearing and tearing of roller groove groove face also can to occur, and the groove side is worn " snatching a moment ", finally causes mechanically resistant material and matrix avalanche.In addition, the hardened layer twisting stress of built-up welding is big, easily cracks, and melt metal and roller tooth substrate combinating strength are poor, and welding block is easy to generate monoblock and peels off.
Summary of the invention
The purpose of this utility model provides a kind of cane mill and presses roller, and it not only can improve press for extracting juice roller surface hardness, and can realize surface coarsening again, thereby improves its work-ing life.
To achieve these goals, the scheme that the utility model adopts is: it includes roll shaft and is contained in the roller shell that roll shaft is outer, appearance has multiple tracks roller groove and roller tooth, and the roll surface of described roller shell is provided with surfaceness R
yGreater than 100 microns laser treatment hardened layer, it is the phase transformation transition layer that martensite and matrix are formed that this laser treatment hardened layer includes consolidation layer and its following structure that structure is a ledeburite.
The thickness of above-mentioned consolidation layer is more preferably greater than 0.1 millimeter.It is the laser cladding layer that alloy substrate is distributed with granular carbide mutually that above-mentioned roller tooth crest top land can be provided with one deck structure, and the thickness of this cladding layer is generally 0.1～2.0 millimeter.
Owing to adopted such scheme, the utility model compared with prior art has following beneficial effect:
1, long service life.This cane mill presses roller and adopts laser rapid heating, cooling and obtain the eutectic degree height, organize fine and closely wovenly at a high speed, and wear resistance is good, the textura epidermoidea of Heat stability is good, as cast condition that hardness is high.Through showing that with flame spurt welding wolfram varbide technology simultaneous test of the present utility model ten thousand tons of sugarcane greatest wear amounts only are 32.3% of prior art, be more than 2 times of prior art its work-ing life.
2, corrosion-resistant good.The surface microstructure of laser melting hardened layer makes it have erosion resistance preferably.
3, roller entering property is good.Because the top layer is the consolidation layer of the very high ledeburite structure of hardness, therefore, this press for extracting juice roller can keep the rough form of its roll surface in the long period use, therefore, have good roller entering property energy.As use this cane mill to press roller in whole production line, the comparable prior art of the daily squeezed quantity of sugarcane improves 300～500 tons.
4, sucrose extraction height.The overall wearing and tearing of profile of tooth are even, and profile of tooth keeps better, keep cooperating preferably with the squeezing machine comb body, and bagasse moisture content is decreased.
5, operate steadily.This uses novel hardened layer uniform distribution, cooperates better with the squeezing machine comb body, presses and season produces no bad vibration and cause other fault.
Description of drawings
Fig. 1 is a top layer of the present utility model part sectioned view.
Fig. 2 is the macrostructure synoptic diagram on the utility model roller shell excircle roller groove groove face top layer.
Fig. 3 is the structure figure on the utility model roller shell excircle roller groove groove face top layer.
Fig. 4 is the structure figure on the utility model roller shell excircle crest top land top layer.
Embodiment
Below in conjunction with the accompanying drawing example structure of the present utility model is described in further detail:
Fig. 1, shown in Figure 2, this cane mill press roller and include roll shaft 1 and the roller shell 2 that is contained in outside the roll shaft 1, appearance has multiple tracks roller groove and roller tooth, and the matrix of roller shell 2 is a grey cast iron, and the A on it, C, D position are roller groove groove face, and B portion is the end face of roller tooth.A at the roll surface of roller shell, the D position, adopting the laser beam of high power density is thermal source, in utmost point short period of time and roll surface interaction, the metallic surface that makes certain depth was heated and melts in moment, along with light beam is removed heat absorption and the conduction of back by the roller housing base, under high speed of cooling, make and melt the quick cooled and solidified of top layer metal, form surfaceness Ry greater than 100 microns laser treatment hardened layer, this laser treatment hardened layer include consolidation layer that structure is a ledeburite and its down structure be martensite and the phase transformation transition layer of matrix composition.At the B position, have a mixed powder by Co-based alloy powder (Ni60) and nickel bag tungsten-carbide powder (70%WC+30Ni) to cool off the laser cladding layer that forms with the tooth top surface fusion under laser beam irradiation, the structure of this layer is that alloy substrate is distributed with granular carbide mutually.
Figure 3 shows that the metallurgical structure figure of the electron microscope shooting of A portion among Fig. 1, the E district is the consolidation floor among the figure, and its metallurgical structure is a ledeburite, and this layer thickness is 0.4～0.6 millimeter, and hardness reaches 726HV100～1150HV100; The F district is the phase transformation transition layer among the figure, and this layer thickness is 0.6～0.95 millimeter, and it can reach 713HV100～795HV100 by E district position hardness, and its metallurgical structure is the compound of martensite and gray cast-iron based body tissue.
Fig. 4 is the metallurgical structure figure that the electron microscope of B portion among Fig. 1 is taken, the G district is a laser cladding layer among the figure, its metallurgical structure is that alloy substrate is distributed with granular carbonization tungsten mutually, the white clear zone of particulate state is a wolfram varbide among the figure, this layer thickness is 1.6 millimeters, and this layer hardness reaches 688HV100～766HV100.
Claims (4)
1, a kind of cane mill presses roller, and it includes roll shaft and is contained in the roller shell that roll shaft is outer, appearance has multiple tracks roller groove and roller tooth, and it is characterized in that: the roll surface of described roller shell is provided with surfaceness R
yGreater than 100 microns laser treatment hardened layer, it is the phase transformation transition layer that martensite and matrix are formed that this laser treatment hardened layer includes consolidation layer and its following structure that structure is a ledeburite.
2, cane mill according to claim 1 presses roller, and it is characterized in that: the thickness of described consolidation layer is greater than 0.1 millimeter.
3, cane mill according to claim 1 and 2 presses roller, and it is characterized in that: it is the laser cladding layer that alloy substrate is distributed with granular carbide mutually that described roller tooth crest top land is provided with one deck structure.
4, cane mill according to claim 3 presses roller, and it is characterized in that: the thickness of described cladding layer is 0.1～2.0 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032515189U CN2615142Y (en) | 2003-04-29 | 2003-04-29 | Squeezing roll for sugar cane press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032515189U CN2615142Y (en) | 2003-04-29 | 2003-04-29 | Squeezing roll for sugar cane press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2615142Y true CN2615142Y (en) | 2004-05-12 |
Family
ID=34253194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032515189U Expired - Fee Related CN2615142Y (en) | 2003-04-29 | 2003-04-29 | Squeezing roll for sugar cane press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2615142Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785386A (en) * | 2012-08-24 | 2012-11-21 | 广西溢澜焊接技术有限公司 | Pocking mark pressing roller and surfacing welding process thereof |
| CN104002141A (en) * | 2013-11-11 | 2014-08-27 | 柳州市粤柳糖机制造有限责任公司 | Sugarcane press roller surfacing method |
-
2003
- 2003-04-29 CN CNU032515189U patent/CN2615142Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785386A (en) * | 2012-08-24 | 2012-11-21 | 广西溢澜焊接技术有限公司 | Pocking mark pressing roller and surfacing welding process thereof |
| CN104002141A (en) * | 2013-11-11 | 2014-08-27 | 柳州市粤柳糖机制造有限责任公司 | Sugarcane press roller surfacing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |