CN105057026A - Wear-resistant tooth roller of tooth roller crusher and production method of wear-resistant tooth roller - Google Patents
Wear-resistant tooth roller of tooth roller crusher and production method of wear-resistant tooth roller Download PDFInfo
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- CN105057026A CN105057026A CN201510479552.XA CN201510479552A CN105057026A CN 105057026 A CN105057026 A CN 105057026A CN 201510479552 A CN201510479552 A CN 201510479552A CN 105057026 A CN105057026 A CN 105057026A
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Abstract
The invention discloses a wear-resistant tooth roller of a tooth roller crusher and a production method of the wear-resistant tooth roller. The wear-resistant tooth roller comprises a roller drum and roller teeth fixedly arranged on the outer surface of the roller drum. The wear-resistant tooth roller is characterized in that the roller teeth are fixedly connected with the outer surface of the roller drum in a welding way; counter bores are drilled in the top surfaces of the roller teeth, and a high-carbon and high-chromium wear-resistant welding wire is welded into the bores and fills the bores to form an impact-resistant column of the roller teeth; and a wear-resistant layer is overlaid on each of the outer surfaces of the roller teeth and the roller drum by using the high-carbon and high-chromium wear-resistant welding wire to form a wear-resistant tooth roller working surface capable of prolonging the service life of the tooth roller crusher. According to the method, the roller drum and the roller teeth are produced in different steps; then, the roller teeth with wear-resistant protective layers are fixedly connected with the outer surface of the roller drum in the welding way; and a wear-resistant protective layer is overlaid on the rest outer side surface of the roller drum, so that the wear resistance of the roller teeth is greatly improved, and the service life of each roller tooth is greatly prolonged. By using the method, worn and scrapped old tooth rollers can also be repaired and recycled, so that wastes are utilized, resources are saved, and the cost is reduced.
Description
Technical field
The present invention relates to rod-toothed crusher, especially the manufacture method of rod-toothed crusher discaling roll.
Background technology
Rod-toothed crusher mainly utilizes two toothed rollers, and two discaling rolls rotate the high extruding force of generation relatively and shearing force carrys out broken material, after namely material enters disintegrating machine, under the effect turning to contrary two roller high extruding forces and shearing force, makes material broken.The material larger for viscosity and the less material of proportion, there is extraordinary crushing effect, roller tooth because of rod-toothed crusher is outstanding outside, and long-term high speed contact material drive material movement, roller tooth abrasion is very serious, and the anti-wear performance of roller tooth determines the operating efficiency of rod-toothed crusher, if roller tooth abrasion is more, then roll gap becomes large, and disintegrating machine efficiency just reduces greatly.Therefore, the main performance of rod-toothed crusher largely depends on the anti-wear performance of roller tooth.
Traditional discaling roll manufacture adopts monoblock cast mode, integrally cast by roller and roller tooth simultaneously, roller surface is covered with roller tooth, the casting mould of this manufacture method and complicate fabrication process, easy generation defect, in order to ensure the mechanical performance of whole roller, material wear-resisting especially can't be adopted cast.Therefore, the anti-wear performance of cast-in-block roller tooth is not fine, and the life-span is low.In order to improve the wearability of roller tooth, also to have on the basis of casting roll at pair roller tooth build-up wear-resistant material to improve the anti-wear performance of discaling roll.But, because rotating speed is high during rod-toothed crusher work, impact large, and generally the postwelding metal of the welding rod that anti-wear performance is good is all more crisp, cannot bear larger impact.If build-up wear-resistant layer is thicker, during work, after being subject to greater impact, wearing layer will come off block; If welding wear-resistant layer must thinlyyer can wear and tear again very soon, permanent wear-resistant protection and working time cannot be provided.If select anti-wear performance good and the cobalt-based of good toughness, nickel-base material built-up welding, cost is too high, does not have economy.Therefore, one be found both economical and practical, can be again the roller tooth key improving the rod-toothed crusher life-span that provides the high-abrasive material of permanent protection or manufacturing process to become.
Summary of the invention
The object of this invention is to provide a kind of anti-wear performance is good, the life-span is long and cost is low rod-toothed crusher wear-resistant tooth roller and manufacture method thereof.
For reaching upper art object, technical scheme of the present invention is:
A kind of rod-toothed crusher discaling roll, it comprises the roller tooth that it comprises roller and is fixed on roller outer surface, it is characterized in that:
Described roller tooth and the outer surface of roller are that weldering is fixedly connected with;
Described roller tooth is drilled with counterbore at crest top land, weldering in hole is filled up at Kong Zhongyong high carbon and chromium abrasion-resistant welding wire, and formation roller tooth is resistance to rushes post;
Except bottom surface each of described roller tooth, uses high carbon and chromium abrasion-resistant welding wire built-up welding one deck wearing layer;
Described roller outer surface, with high carbon and chromium abrasion-resistant welding wire built-up welding one deck wearing layer, forms the wear-resisting working face of the discaling roll improving the rod-toothed crusher life-span together with the wearing layer of each roller tooth.
The wearing layer thickness of each of described roller tooth and roller outer surface is 5 ~ 8 centimetres, and wherein, the end face wearing layer thickness of roller tooth is 8 centimetres, and each side wearing layer thickness is 5 centimetres.
A manufacture method for rod-toothed crusher discaling roll, it comprises roller and is fixed on the roller tooth of roller outer surface, characterized by further comprising manufacturing step:
1, the roller of casting not with roller tooth
According to the drawing requirement of roller, cast out the roller blank without roller tooth, surfaces externally and internally all reserves enough allowance; In order to ensure the outer circularity of roller and be beneficial to welding rolls tooth, pair roller barrel blank carries out roughing and carries out circularity to the roller outer surface cast and be beneficial to the processing of welding rolls tooth;
2, roller tooth is manufactured
(1) first press the blanking of roller tooth outline with steel plate, generally in wide all directions of growing tall by the little 5 ~ 8mm of the size of standard rollers tooth;
(2) bore counterbore according to the motion of roller tooth and Impact direction rig at crest top land, aperture is generally 4/5 of the facewidth, and the degree of depth is 3/4 of tooth depth;
(3) with high carbon and chromium abrasion-resistant welding wire, roller tooth is bored weldering in counterbore to fill up, formation roller tooth is resistance to rushes post;
(4) except tooth root portion will leave 5 ~ 8mm vacancy, in counterbore, welded each of the roller tooth high carbon and chromium abrasion-resistant welding wire filling up abrasion-resistant welding wire the built-up welding of roller tooth has been met the requirements of size, to ensure that each face of roller tooth can be subject to the protection of wearing layer;
3, the roller tooth being welded with wearing layer is welded on outside roller by corresponding position, 5 ~ 8mm vacancy that previous step tooth root portion stays also is welded with roller together simultaneously;
4, burn-on outside roller wearing layer roller tooth after, high carbon and chromium abrasion-resistant welding wire build-up wear-resistant layer on its lap of roller, ensure all positions, discaling roll face have wearing layer to protect.
The described roller tooth also direct forge hot of available steel goes out the roller peristome base with counterbore.
The manufacture method of above rod-toothed crusher discaling roll, adopts the method for fractional steps to carry out manufacture roller, roller tooth, is then welded with the outer surface of roller by the roller tooth of existing wear-resistant protective layer and be fixedly connected with, built-up welding one deck wear-resistant protective layer on remaining roller lateral surface.First cast the roller not with roller tooth, owing to not being with roller tooth, roller die manufacture simplifies greatly, and casting technique also simplifies, and roller quality also significantly improves.At the outer surface build-up wear-resistant layer of roller, ensure that all positions, roller face can obtain wear-resistant protection.Roller tooth independently makes, and manufacture craft is simple and convenient; Each stress surface, the rubbing surface of roller tooth can according to the wearing layers of working condition built-up welding different-thickness, and meanwhile, bore counterbore and fill up with the weldering of high carbon and chromium abrasion-resistant welding wire in roller tooth, formation roller tooth is resistance to rushes post, substantially increases anti-wear performance and the service life of roller tooth.Roller dental transition is changed conveniently, if after roller tooth abrasion, can exclude the roller tooth of wearing and tearing, new roller tooth is welded direct to original position, greatly save maintenance cost and maintenance time.Utilize the method also can be used for the old discaling roll that experience wear has been scrapped and carry out repairing and reusing, the old roller performance after reparation reaches new roller performance, twice laid completely, has saved resource and cost.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention is welded with wearing layer roller tooth;
Fig. 2 is along the structural representation that A-A analyses and observe in Fig. 1;
Fig. 3 is the structural representation of finished product;
Fig. 4 is the structure for amplifying schematic diagram of I in Fig. 3;
In the drawings, roller tooth 1, counterbore 2, resistance toly rushes post 3, gives and leaves a blank scarce 4, before wearing layer 5, above wearing layer 6, back bevel 7, left wearing layer 8, right wearing layer 9, roller 10, has the roller tooth 11 of wearing layer, roller wearing layer 12.
Detailed description of the invention
Structure Figure below, the invention will be further described.
For achieving the goal, applicant is by doing the analysis of careful and science to the structure of existing rod-toothed crusher and operation principle, develop brand-new discaling roll manufacture, the method of fractional steps is adopted to carry out manufacturing new discaling roll, first cast the roller not with roller tooth, owing to not being with roller tooth, roller die manufacture simplifies greatly, casting technique also simplifies, and roller quality also significantly improves.According to the drawing requirement of roller, cast out the roller blank without roller tooth, surfaces externally and internally all reserves enough allowance, is about 10mm, can meet the requirements of precision after ensureing twice processing.In order to ensure the outer circularity of roller and be beneficial to welding rolls tooth, pair roller barrel blank carries out roughing: the roller shell blank being about to have cast carries out first time processing, and surfaces externally and internally all reserves the allowance of 3 ~ 6mm, so that second time processing (fine finishining).Then roller tooth is manufactured, the mode manufacturing roller tooth has two kinds: (1) first with steel plate by the blanking of roller tooth outline, steel material selects 45# steel plate or potassium steel, generally lack 5 ~ 8mm in wide all directions of growing tall by standard size, counterbore is bored at crest top land according to the motion of roller tooth and Impact direction rig, general aperture is 4/5 of the facewidth, and the degree of depth is 3/4 of tooth depth; (2) go out blank with holes with the direct forge hot of steel, such roller tooth anti-wear performance is more excellent.Roller tooth counterbore selects high carbon and chromium abrasion-resistant welding wire holed weldering to be filled up; Then, except tooth root portion will stay except 5 ~ 8mm, in hole, welded its lap high carbon and chromium abrasion-resistant welding wire of roller tooth filling up abrasion-resistant welding wire the weldering of roller tooth has been met the requirements of size, to ensure that each face of roller tooth can be subject to the protection of wearing layer.
Shown in Fig. 1, it is the structural representation that the present invention is welded with wearing layer roller tooth, Fig. 2 is along the structural representation that A-A analyses and observe in Fig. 1, known from two figure, the Impact direction of the roller tooth 1 that steel make is from left to right, as denoted by the arrows in fig. 2, stress surface is end face, leading flank, left surface and right flank, and back bevel 7 does not generally stress.In order to the tear resistance of the impact resistance that strengthens and each, be drilled with counterbore 2 at crest top land, and fill up counterbore 2 with the weldering of high carbon and chromium abrasion-resistant welding wire and be configured to resistance toly rush post 3, make that roller tooth 1 is shock-resistant, extruding and collision; High carbon and chromium abrasion-resistant welding wire built-up welding one deck wearing layer is also used in each side, namely sees wearing layer 5 before in Fig. 1,2, above wearing layer 6, left wearing layer 8 and right wearing layer 9, and the roller dental transition that roller tooth 1 and each wearing layer are formed is wear-resisting, improves efficiency; Be provided with in tooth root portion to give and leave a blank scarce 4, namely will give and leave the not built-up welding of 5 ~ 8mm vacancy, couple together to weld again when roller tooth welds with roller face by lower step; If all full wearing layers of weldering, can weld loosely when being welded with roller by roller tooth, roller tooth easily comes off.The back bevel 7 of roller tooth 1 does not generally stress, therefore can not build-up wear-resistant layer, or build-up wear-resistant layer is thinner.In practice, the wearing layer thickness of each of roller tooth and roller outer surface is 5 ~ 8 centimetres is optimal selection, and wherein, the end face wearing layer thickness of roller tooth is 8 centimetres, and each side wearing layer thickness is 5 centimetres.After roller tooth is made, be welded on roller outer surface by roller tooth by corresponding position, the pair relationhip of corresponding two discaling roll roller teeth is noted in welding, and should stagger mutually in two corresponding roller tooth positions, operationally can not have the problem of mutually clashing into.
Shown in Fig. 3, the structural representation of finished product, Fig. 4 is the structure for amplifying schematic diagram of I in Fig. 3, in the drawings, roller tooth 1 heap is welded with wearing layer 5 above, wearing layer 6 above, the roller tooth 11 having wearing layer is become after left wearing layer 8 and right wearing layer 9, roller tooth 11 welds with roller 10 outer surface after roughing and is fixedly connected with, and giving of step setting in tooth root portion is left a blank scarce 4, namely 5 ~ 8mm vacancy of staying is given together with remaining roller 9 outer surface, with abrasion-resistant welding wire, roller tooth 1 and the weldering of roller 10 outer surface are met the requirements of size, to ensure that discaling roll 1 all directions have the protection of wearing layer.Will see by Fig. 3,4, the outer surface of roller 10 also uses high carbon and chromium abrasion-resistant welding wire built-up welding one deck roller wearing layer 12, makes it to join together with the wearing layer of roller tooth 11, and the working face of protection discaling roll, increases work efficiency.Then the installed surface of pair roller barrel 10 carries out second time fine finishining, and fine finishining reaches the size of drawing requirement.Finally, in order to antiseptic and rustproof, at the outer surface rust prevention by applying liquid material paint of discaling roll.So far complete.
The roller 10 that the present invention makes, roller tooth 11 wearing layer maximum gauge reach 3/4 of roller tooth 1 height, and be in the most serious position of roller tooth abrasion, roller 10 and roller tooth 11 is made all to possess good anti-wear performance in the course of the work, selected high carbon and chromium welding wire anti-wear performance is good, HRC>60, friction durability is more than 10 times of 35# cast steel, and cost is low. by the produced discaling roll of above-mentioned manufacturing process 10, both there is good mechanical performance, possess and well impact and anti-wear performance, cost is also well controlled.After cement production enterprise uses, the life-span reaches more than 3 times of monoblock cast roller, and the new roller tooth 11 on roll surface through simple process and again welding of the discaling roll simultaneously after wearing and tearing just can re-use, and greatly saves use cost.
Applicant adopts roller tooth to weld with roller, and solve above prior art Problems existing in the mode of working face build-up wear-resistant layer, not only solve the wearability problem of new roller, and can repair the old discaling roll that experience wear is scrapped and manufacture again, repair the discaling roll performance manufactured again and reach new roller performance requirement completely, and cost reduces greatly.
Claims (4)
1. a rod-toothed crusher discaling roll, it comprises the roller tooth that it comprises roller and is fixed on roller outer surface, it is characterized in that:
Described roller tooth and the outer surface of roller are that weldering is fixedly connected with;
Described roller tooth is drilled with counterbore at crest top land, weldering in hole is filled up at Kong Zhongyong high carbon and chromium abrasion-resistant welding wire, and formation roller tooth is resistance to rushes post;
Except bottom surface each of described roller tooth, uses high carbon and chromium abrasion-resistant welding wire built-up welding one deck wearing layer;
Described roller outer surface, with high carbon and chromium abrasion-resistant welding wire built-up welding one deck wearing layer, forms the wear-resisting working face of the discaling roll improving the rod-toothed crusher life-span together with the wearing layer of each roller tooth.
2. want the rod-toothed crusher discaling roll described in 1 according to right, it is characterized in that:
The wearing layer thickness of each of described roller tooth and roller outer surface is 5 ~ 8 centimetres, and wherein, the end face wearing layer thickness of roller tooth is 8 centimetres, and each side wearing layer thickness is 5 centimetres.
3. a manufacture method for rod-toothed crusher discaling roll, it comprises roller and is fixed on the roller tooth of roller outer surface, characterized by further comprising manufacturing step:
A, the roller of casting not with roller tooth
According to the drawing requirement of roller, cast out the roller blank without roller tooth, surfaces externally and internally all reserves enough allowance; In order to ensure the outer circularity of roller and be beneficial to welding rolls tooth, pair roller barrel blank carries out roughing and carries out circularity to the roller outer surface cast and be beneficial to the processing of welding rolls tooth;
B, manufacture roller tooth
(1) first press the blanking of roller tooth outline with steel plate, generally in wide all directions of growing tall by the little 5 ~ 8mm of the size of standard rollers tooth;
(2) bore counterbore according to the motion of roller tooth and Impact direction rig at crest top land, aperture is generally 4/5 of the facewidth, and the degree of depth is 3/4 of tooth depth;
(3) with high carbon and chromium abrasion-resistant welding wire, roller tooth is bored weldering in counterbore to fill up, formation roller tooth is resistance to rushes post;
(4) except tooth root portion will leave 5 ~ 8mm vacancy, in counterbore, welded each of the roller tooth high carbon and chromium abrasion-resistant welding wire filling up abrasion-resistant welding wire the built-up welding of roller tooth has been met the requirements of size, to ensure that each face of roller tooth can be subject to the protection of wearing layer;
C, the roller tooth being welded with wearing layer to be welded on outside roller by corresponding position, 5 ~ 8mm vacancy that previous step tooth root portion stays also to be welded with roller together simultaneously;
Burn-on outside D, roller wearing layer roller tooth after, high carbon and chromium abrasion-resistant welding wire build-up wear-resistant layer on its lap of roller, ensure all positions, discaling roll face have wearing layer to protect.
4. want the manufacture method of the rod-toothed crusher discaling roll described in 3 according to right, it is characterized in that:
The described roller tooth also direct forge hot of available steel goes out the roller peristome base with counterbore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510479552.XA CN105057026A (en) | 2015-08-03 | 2015-08-03 | Wear-resistant tooth roller of tooth roller crusher and production method of wear-resistant tooth roller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510479552.XA CN105057026A (en) | 2015-08-03 | 2015-08-03 | Wear-resistant tooth roller of tooth roller crusher and production method of wear-resistant tooth roller |
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| CN105057026A true CN105057026A (en) | 2015-11-18 |
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| CN201510479552.XA Pending CN105057026A (en) | 2015-08-03 | 2015-08-03 | Wear-resistant tooth roller of tooth roller crusher and production method of wear-resistant tooth roller |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108246412A (en) * | 2018-03-07 | 2018-07-06 | 渠县金城合金铸业有限公司 | A kind of Abrasion-resistant tooth roller shell of roll crusher |
| CN110170352A (en) * | 2019-04-22 | 2019-08-27 | 广东技术师范学院天河学院 | A kind of crusher |
| CN115070346A (en) * | 2022-05-20 | 2022-09-20 | 洛阳中重铸锻有限责任公司 | Manufacturing and correcting method for large four-tooth-roller crushing tooth block |
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| CN205042535U (en) * | 2015-08-03 | 2016-02-24 | 广西晨铭机械再制造科技有限公司 | Wear -resisting fluted roller of toothed roll crusher |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO1998034729A1 (en) * | 1997-02-10 | 1998-08-13 | The Track Shop Pty. Ltd. | Abrasion resistant surface coatings and method of forming same |
| CN200987977Y (en) * | 2006-12-20 | 2007-12-12 | 代文娟 | Selective crusher |
| CN201105226Y (en) * | 2007-08-24 | 2008-08-27 | 宝山钢铁股份有限公司 | Wear resistant backing block for rolling mill gear roller |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108246412A (en) * | 2018-03-07 | 2018-07-06 | 渠县金城合金铸业有限公司 | A kind of Abrasion-resistant tooth roller shell of roll crusher |
| CN110170352A (en) * | 2019-04-22 | 2019-08-27 | 广东技术师范学院天河学院 | A kind of crusher |
| CN115070346A (en) * | 2022-05-20 | 2022-09-20 | 洛阳中重铸锻有限责任公司 | Manufacturing and correcting method for large four-tooth-roller crushing tooth block |
| CN115070346B (en) * | 2022-05-20 | 2023-08-29 | 洛阳中重铸锻有限责任公司 | Manufacturing and correcting method for large four-tooth roller crushing tooth block |
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Application publication date: 20151118 |