CN105127702A - Speed changing box for sintered gear - Google Patents
Speed changing box for sintered gear Download PDFInfo
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- CN105127702A CN105127702A CN201510463398.7A CN201510463398A CN105127702A CN 105127702 A CN105127702 A CN 105127702A CN 201510463398 A CN201510463398 A CN 201510463398A CN 105127702 A CN105127702 A CN 105127702A
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- gearbox
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- 239000000843 powder Substances 0.000 claims abstract description 41
- 239000002184 metal Substances 0.000 claims abstract description 40
- 229910052751 metal Inorganic materials 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims description 92
- 238000010791 quenching Methods 0.000 claims description 27
- 230000000171 quenching effect Effects 0.000 claims description 26
- 238000005245 sintering Methods 0.000 claims description 25
- 238000000465 moulding Methods 0.000 claims description 17
- 238000007493 shaping process Methods 0.000 claims description 17
- 238000007689 inspection Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000000047 product Substances 0.000 claims description 11
- 230000002950 deficient Effects 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 6
- 238000003698 laser cutting Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 210000003205 muscle Anatomy 0.000 claims description 6
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 230000006837 decompression Effects 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 5
- 239000011265 semifinished product Substances 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 2
- 239000012634 fragment Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 38
- 230000000704 physical effect Effects 0.000 abstract description 3
- 238000010030 laminating Methods 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 37
- 238000005516 engineering process Methods 0.000 description 9
- 238000003754 machining Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 238000010862 gear shaping Methods 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000004512 die casting Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- 238000010273 cold forging Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000005495 investment casting Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 229910000648 terne Inorganic materials 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
Abstract
The invention relates to a speed changing box for a sintered gear, in particular to the speed changing box for the sintered gear formed by laminating a plurality of quenched sheet parts with teeth. The speed changing box comprises a box body, a shaft and the gear, the shaft is installed in the box body, and the gear is arranged on the shaft. The gear speed changing box is characterized in that the gear is the sintered gear formed by laminating multiple sheets; the gear comprises a gear body, and the gear body is formed by laminating the multiple quenched sheet parts with the teeth; the positions between the sheet parts and the surfaces of the sheet parts are filled with metal powder; at least one connecting hole is formed in each sheet part, the connecting holes are laminated to form a through hole after the sheet parts are laminated, and the connecting holes are fixedly connected into the gear body through connecting pieces; and after the gear body is sintered and cooled, the metal powder solidifies into metal to be injected into the positions between the sheet parts of the gear body and the surface of the gear body, and the technical aims of rapidly manufacturing the gear with the high physical property in a low-cost manner and reducing the cost for manufacturing the speed changing box are achieved.
Description
Technical field
The present invention relates to a kind of sintered gear(s) gearbox, particularly relate to the gearbox of the sintered gear(s) that toothed sheet parts that a kind of employing quenched by multi-disc is formed by stacking.
Background technology
Gearbox is widely used at mechanical field, and gearbox, usually through the transmission of the gear quality inspection of the different number of teeth, changes the rotating speed of driving shaft and driven shaft, and in the production process of gearbox, the making one of gear is only a technical barrier.
Gear refers to, and wheel rim has tooth can engage the mechanical organ transmitting motion and power continuously, the initial gear drive of China was brought into use from the period of Three Kingdoms, started there is gear-driven record at B.C. 300 years abroad, therefore, gear drive at mechanical field from ancient times with regard to extensive use.
Common gear can be divided into cross section to be circular gear, the non-circular special shape gear of tooth bar and cross section from outward appearance.
Conventional gear working method is generally divided into form copying and generation method, such as: gear-hobbing machine gear hobbing process, milling machine Gear Milling, slotting machine Gear Shaping, cold forging machine forge the methods such as tooth processing, the processing of gear shaper gear-shaping, the processing of accurate casting tooth, the processing of gear grinding machines roll flute, the processing of die casting machine casting tooth, gear shaving machine processing.
Such as: produce common straight spur gear for form copyings such as gear-hobbing machine gear hobbing process, milling machine Gear Milling, slotting machine Gear Shaping, the processing of gear shaper gear-shaping, the processing of gear grinding machines roll flute, gear shaving machine processing, processing technology must have: → tempering that blanking → material forges (eliminate material fracture and pore) (reduce and cut difficulty) → outer garden profile and interior garden profile cut → line → calibration profiling Gear shape process → keyway processing → quenching → flank of tooth honing fine finishining → inspection → warehouse-in is carried out to each tooth.
Such as: forge the common straight spur gear of tooth processing for cold forging machine, processing technology must have: (technique is loaded down with trivial details, slightly to forge Mould Machining.) → heating materials → forge processing → gear surface roughing → heat treatment → gear surface fine finishining → inspection → warehouse-in; Each mould can only produce the gear of a model.
Such as: for the common straight spur gear of lost wax casting method precision casting tooth processing, processing technology must have: (technique is loaded down with trivial details, slightly for the processing of metal wax-pattern.) → wax-pattern is shaped, and (technique is loaded down with trivial details, slightly.) → sand mo(u)ld shaping → sand mo(u)ld dewaxing → metal melt → cast → the demoulding → sand removal → gear surface fine finishining → inspection → warehouse-in; Cast gear is generally not suitable for heat treatment process, and therefore, the strength of gear of production is little, generally can not heat treatment further, and each mould can only produce the gear of a model.
Such as: the common straight spur gear of metal dust die casting machine casting tooth processing is example, and processing technology must have: (technique is loaded down with trivial details, slightly for Mould Machining.) → metal dust die casting machine casting tooth → gear surface fine finishining → inspection → warehouse-in; Cast gear is generally not suitable for heat treatment process, and therefore, the strength of gear of production is little, generally can not heat treatment further, and each mould can only produce the gear of a model.
In order to ensure physical accuracy and the mechanical strength of gear, no matter adopt above arbitrary processing method, all have that actual processing technology complexity, long processing time, difficulty of processing are large, processing cost high-technology defect, these technological deficiencies are more outstanding when production large gear or special shape gear.
Summary of the invention
The technical problem that the present invention solves is: complex process during in order to solve prior art machining gears, long processing time, difficulty of processing are large, processing cost high-technology defect, a kind of sintered gear(s) gearbox is provided, particularly relate to the gearbox of the sintered gear(s) that toothed sheet parts that a kind of employing quenched by multi-disc is formed by stacking, reach low cost, manufacture high physical property gear fast, reduce the technical purpose of the cost manufacturing gearbox.
The technical scheme of technical solution problem of the present invention is:
In order to reach technical purpose of the present invention, a kind of sintered gear(s) gearbox provided by the invention, described gearbox comprises casing, axle, gear, is provided with axle in casing, and axle has gear, it is characterized in that: the sintered gear(s) that gear adopts a kind of multi-disc to superpose; Described gear comprises gear mass, gear mass is formed by stacking mutually by the toothed sheet parts of multi-disc through quenching, between each sheet parts and surface is filled with metal powder, described sheet parts has a connecting hole at least, connecting hole after the superposition of multi-disc sheet parts is overlapped into through hole, gear mass is fixedly connected into connector between connecting hole, gear mass is after sintering and cool, metal powder is frozen into metal and is filled between each sheet parts of gear mass and the surface of gear mass, and adopts following procedure of processing:
Step 1): sheet metal is machined into toothed sheet parts; Described sheet parts has a connecting hole at least;
Step 2): Quenching Treatment is carried out to the sheet parts after shaping;
Step 3): the mould then multi-disc sheet parts being entered gear shape carries out stacking splicing, formative gear moulding, and the connecting hole after the superposition of multi-disc sheet parts is overlapped into through hole;
Step 4): be then fixed connection by inserting connector between the connecting hole of the gear after above-mentioned moulding, formative gear body;
Step 5): carry out the inspection of semifinished product to described gear mass, the qualified gear mass reaching drawing configuration design requirement enters next step, and defective gear mass is checked after entering the mould squeezing shaping of gear shape again, enters next step after qualified;
Step 6): then by the surperficial prefluxing of said gear body;
Step 7): then at the outer matel coated powder of scaling powder, metal powder is filled between each sheet parts;
Step 8): then the gear scribbling metal powder is carried out sintering process, form sintered gear(s);
Step 9): then the gear of above-mentioned thermal sintering is carried out product inspection, qualified finished gear warehouse-in, defective gear is checked after carrying out the process of gear outer contour surface again, the finished gear warehouse-in after qualified;
The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
The sintered gear(s) gearbox be more preferably, when gear makes, adopts wherein a kind of method of punching press, Linear cut, laser cutting, plasma cut, the cutting of high pressure liquid muscle power, by toothed for sheet metal machine-shaping sheet parts.
The sintered gear(s) gearbox be more preferably, when gear makes, the metal powder that scaling powder is coated with outward is selected from the mixing of following any one or two or more arbitrary proportions: lead powder, glass putty, copper powder, aluminium powder.
The sintered gear(s) gearbox be more preferably, when gear makes, completes gear mass sintering process in vacuum tank.
A kind of sintered gear(s) gearbox be more preferably, when gear makes, when sintering in vacuum tank, close vavuum pump, open intake valve fast, make air inlet fast in vacuum tank, when waiting until pressure and normal-pressure balance in vacuum tank, cut out intake valve reopens vavuum pump and carries out negative-pressure ward, and above-mentioned rapid pressure and fast decompression process hocket once.
The sintered gear(s) gearbox be more preferably, when gear makes, is characterized in that quenching adopts high-frequency quenching, mid frequency induction hardening or heat-treatment furnace heating quenching.
A kind of sintered gear(s) gearbox be more preferably, when producing long tooth bar, on the mould of rack shapes, the sheet parts of long rack-shaped is connected to form with thin slice rack-shaped part more than a slice, the mode that the long rack-shaped sheet parts that the long rack-shaped sheet parts of upper a slice splicing and lower a slice are spliced carries out staggered superposition is spliced, form long rack shapes with the sheet parts of the long rack-shaped of multi-layer spliced, and the connecting hole after the long rack-shaped sheet parts superposition of multi-disc is overlapped into through hole.
A kind of sintered gear(s) gearbox be more preferably, when producing circular gear, on the mould of gear shape, circular sheet parts is connected to form with shaping thin slice circular arc part more than a slice, the mode that the sheet parts of the circle that the sheet parts of circle of last layer splicing and lower one deck splice carries out staggered superposition is spliced, with the sheet parts formative gear shape of the circle of multi-layer spliced, and the connecting hole after the superposition of the sheet parts of multi-layer circular is overlapped into through hole.
A kind of sintered gear(s) gearbox be more preferably, when producing special shape gear, on the mould of special shape gear shape, the sheet parts of special shape gear is connected to form with the fragment of the sheet parts of shaping special shape gear more than a slice, the mode that the sheet parts of the special shape gear that the sheet parts of special shape gear of last layer splicing and lower one deck splice carries out staggered superposition is spliced, with the sheet parts formative gear shape of the circle of multi-layer spliced, and the connecting hole after the superposition of the sheet parts of multi-layer circular is overlapped into through hole.
Compare with current gearbox, the Advantageous Effects that the present invention obtains is: when gear makes, by first sheet parts being quenched, then after formative gear, entirety sinters, the single individuality of part is little, be convenient to quenching technical, be convenient to produce heavy parts, compared with prior art overall gear quenching technical, reduce the volume of glowing furnace, especially the large gear that thickness is large, during prior art quenching, warm-up time is very long just can make whole gear heat to the temperature required for quenching, therefore, sheet parts carries out the technique of quenching, shorten warm-up time, be convenient to control of product quality, reduce the difficulty of quenching technical, the metal powder that scaling powder is coated with outward is lead powder, glass putty, copper powder, copper alloy powder, it is all flexible metallic material after terne metal powder solidifies, after stressed extruding, flexible metal can be extruded from the flank of tooth or simply remove, be convenient to control product design precision, do not affect tooth face hardness and flank of tooth physical parameter, sintering process is carried out in vacuum tank, vacuum state can discharge the gas in the metallic solution after metal powder thawing, when carrying out sintering process in vacuum tank, rapid pressure and fast decompression process hocket, granulated metal is made in gear mass, to produce motion after liquefaction, in accelerating gear body, air is discharged, make in gear mass finer and close, improve gear mass mechanical performance, simplified processing process of the present invention, shorten process time, reduce difficulty of processing, reach low cost, the technical purpose of the high physical property gear of quick manufacture, complex process when solving prior art machining gears, long processing time, difficulty of processing is large, processing cost high-technology defect, and produce the more outstanding above-mentioned technological deficiency of large gear or special shape gear, reduce the production cycle of the production cost of gearbox, practicality is large.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1: the process chart being the gear of gearbox of the present invention.
Fig. 2: the tooth bar thin slice rack-shaped part schematic diagram being gearbox of the present invention.
Fig. 3: be that the mould that the tooth bar thin slice rack-shaped part of gearbox of the present invention enters rack shapes carries out stacking splicing formative gear moulding schematic diagram.
Fig. 4: when being the short tooth bar making of gearbox of the present invention, short rack-shaped gear mass schematic diagram.
Fig. 5: when being the long tooth bar production of gearbox of the present invention, rack-shaped arrangements of components method schematic diagram.
Fig. 6: when being the long tooth bar production of gearbox of the present invention, sheet parts enters mould and carries out stacking splicing formative gear moulding schematic diagram.
Fig. 7: when being the long tooth bar production of gearbox of the present invention, long rack-shaped gear mass schematic diagram.
Fig. 8: be the thin slice circular pieces schematic diagram that gear produced by gearbox of the present invention.
Fig. 9: when being the thin slice circular pieces production gear of gearbox of the present invention, thin slice circular pieces aligning method schematic diagram.
Figure 10: the thin slice circular pieces production straight spur gear shape gear mass schematic diagram being gearbox of the present invention.
Figure 11: the semicircle part schematic diagram of thin slice being gearbox of the present invention.
Figure 12: when being the thin slice semicircle part production gear of gearbox of the present invention, thin slice semicircle arrangements of components method schematic diagram.
Figure 13: when being the thin slice semicircle part production gear of gearbox of the present invention, the semicircle part of thin slice stacks schematic diagram.
Figure 14: schematic diagram when being the thin slice semicircle part production straight spur gear of gearbox of the present invention.
Figure 15: the thin slice 1/4 circular pieces schematic diagram being gearbox of the present invention.
Figure 16: when being the thin slice 1/4 circular pieces production gear of gearbox of the present invention, thin slice 1/4 circular pieces aligning method schematic diagram.
Figure 17: when being the thin slice 1/4 circular pieces production gear of gearbox of the present invention, thin slice 1/4 circular pieces stacks schematic diagram.
Figure 18: the thin slice 1/4 circular pieces production straight spur gear shape gear mass schematic diagram being gearbox of the present invention.
Figure 19: the thin slice circular pieces production helical gears shape gear mass schematic diagram being gearbox of the present invention.
Figure 20: the thin slice semicircle part production helical gears shape gear mass schematic diagram being gearbox of the present invention.
Figure 21: the thin slice 1/4 circular pieces production helical gears shape gear mass schematic diagram being gearbox of the present invention.
Figure 22: the thin slice circular pieces production bevel gear body schematic diagram being gearbox of the present invention.
Figure 23: the thin slice semicircle part production bevel gear body schematic diagram being gearbox of the present invention.
Figure 24: the thin slice 1/4 circular pieces production bevel gear body schematic diagram being gearbox of the present invention.
Figure 25: the thin slice internal gear parts schematic diagram being gearbox of the present invention.
Figure 26: the gear mass schematic diagram being the thin slice internal gear parts production internal gear of gearbox of the present invention.
Figure 27: the thin slice 1/2 internal gear parts schematic diagram being gearbox of the present invention.
Figure 28: arrangements of components method schematic diagram when being the thin slice 1/2 internal gear parts production internal gear of gearbox of the present invention.
Figure 29: the superposition schematic diagram being the thin slice 1/2 internal gear parts production internal gear of gearbox of the present invention.
Figure 30: the thin slice 1/4 internal gear parts schematic diagram being gearbox of the present invention.
Figure 31: arrangements of components method schematic diagram when being the thin slice 1/4 internal gear parts production internal gear of gearbox of the present invention.
Figure 32: the superposition schematic diagram being the thin slice 1/4 internal gear parts production internal gear of gearbox of the present invention.
Figure 33: the thin slice special-shaped part schematic diagram being gearbox of the present invention.
Figure 34: arrangements of components method schematic diagram when being the thin slice special-shaped part production special shape gear of gearbox of the present invention.
Figure 35: the gear mass schematic diagram being the thin slice special-shaped part production special shape gear of gearbox of the present invention.
Figure 36: the thin slice 1/2 special-shaped part schematic diagram being gearbox of the present invention.
Figure 37: arrangements of components method schematic diagram when being the thin slice 1/2 special-shaped part production special shape gear of gearbox of the present invention.
Figure 38: the gear mass schematic diagram being the thin slice 1/2 special-shaped part production special shape gear of gearbox of the present invention.
1. sheet parts in figure, 1-1. thin slice rack-shaped part, 1-2. thin slice circular pieces, 1-3. thin slice left semicircle shape part, 1-4. thin slice right semicircular part, first circular pieces of 1-5. thin slice, 1-6. thin slice lower semi-circular part, 1-7. upper thin slice 1/4 circular pieces, thin slice 1/4 circular pieces under 1-8., 1-9. right thin slice 1/4 circular pieces, 1-10. left thin slice 1/4 circular pieces, 1-11. upper left thin slice 1/4 circular pieces, 1-12. upper right thin slice 1/4 circular pieces, 1-13. bottom left thin slice 1/4 circular pieces, 1-14. bottom right thin slice 1/4 circular pieces, 1-15. thin slice special shape gear part, the left half special shape gear part of 1-16. thin slice, the right half special shape gear part of 1-17. thin slice, first special shape gear part of 1-18. thin slice, second special shape gear part of 1-19. thin slice, 1-20. thin slice internal gear parts, 1-21. thin slice 1/2 internal gear parts, 1-22. thin slice 1/4 internal gear parts, 2. connecting hole, 3. the mould of gear shape, 4. tie point, 5. gear mass, the short tooth bar of 5-1., the long tooth bar of 5-2., 5-3. straight spur gear, 5-4. cylindric spiral gear, 5-5. helical gear.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described, but protection domain of the presently claimed invention is not limited to the scope described by specific embodiment.
Example 1: as shown in Fig. 1 to Figure 38, disclosed a kind of sintered gear(s) gearbox, described gear comprises gear mass 5, gear mass 5 is formed by stacking mutually by the toothed sheet parts 1 of multi-disc through quenching, between each sheet parts 1 and surface is filled with metal powder, described sheet parts 1 has a connecting hole 2 at least, connecting hole 2 after multi-disc sheet parts 1 superposes is overlapped into through hole, gear mass 5 is fixedly connected into connector between connecting hole 2, gear mass 5 is after sintering and cool, metal powder is frozen into metal and is filled between each sheet parts 1 of gear mass 5 and the surface of gear mass 5, and adopt following procedure of processing:
Step 1): sheet metal is machined into toothed sheet parts 1; Described sheet parts 1 has a connecting hole 2 at least;
Step 2): Quenching Treatment is carried out to the sheet parts 1 after shaping;
Step 3): the mould 3 then multi-disc sheet parts 1 being entered gear shape carries out stacking splicing, formative gear moulding, and the connecting hole 2 after multi-disc sheet parts 1 superposes is overlapped into through hole;
Step 4): be then fixed connection by inserting connector between the connecting hole of the gear after above-mentioned moulding, formative gear body 5;
Step 5): carry out the inspection of semifinished product to described gear mass 5, the qualified gear mass 5 reaching drawing configuration design requirement enters next step, and defective gear mass 5 is checked after entering mould 3 squeezing shaping of gear shape again, enters next step after qualified;
Step 6): then by the surperficial prefluxing of said gear body 5;
Step 7): then at the outer matel coated powder of scaling powder, metal powder is filled between each sheet parts;
Step 8): then the gear scribbling metal powder is carried out sintering process, form sintered gear(s);
Step 9): then the gear of above-mentioned thermal sintering is carried out product inspection, qualified finished gear warehouse-in, defective gear is checked after carrying out the process of gear outer contour surface again, the finished gear warehouse-in after qualified;
The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 2: as shown in Figures 1 to 4, adopts the method manufacturing gear strip of example 1, and adopts following procedure of processing:
Step 1): wherein a kind of method that the 45# steel plate of 2mm thickness adopts punching press, Linear cut, laser cutting, plasma cut, high pressure liquid muscle power to cut is processed into thin slice rack-shaped part 1-1, and thin slice rack-shaped part 1-1 has two connecting holes 2;
Step 2): carry out Quenching Treatment to the thin slice rack-shaped part 1-1 after shaping, quenching adopts any one of the technique such as high-frequency quenching, mid frequency induction hardening or heat-treatment furnace heating quenching;
Step 3): the mould then 15 plate sheet rack-shaped part 1-1 being entered rack shapes carries out stacking splicing, forms tooth bar moulding, and the connecting hole 2 after 15 plate sheet parts 1 superpose is overlapped into through hole;
Step 4): being then fixed connection by inserting connector between the connecting hole of the tooth bar after above-mentioned moulding, forming short tooth bar 5-1;
Step 5): the inspection of semifinished product is carried out to described short tooth bar 5-1, the qualified short tooth bar 5-1 reaching drawing configuration design requirement enters next step, defective short tooth bar 5-1 checks after entering mould 3 squeezing shaping of rack-shaped again, enters next step after qualified;
Step 6): then by the surperficial prefluxing of above-mentioned short tooth bar 5-1;
Step 7): the metal powder be then coated with outward at scaling powder is selected from the mixing of following any one or two or more arbitrary proportions: lead powder, glass putty, copper powder, aluminium powder, and metal powder is filled between each sheet parts;
Step 8): then the short tooth bar 5-1 scribbling metal powder is carried out Fast Sintering technique in the high frequency coil of electronics coreless induction furnace, form the short tooth bar 5-1 of sintering;
Step 9): then the short tooth bar 5-1 of above-mentioned thermal sintering is carried out product inspection, the short tooth bar 5-1 of qualified finished product puts in storage, again checks after defective short tooth bar 5-1 carries out the process of gear outer contour surface, and the short tooth bar 5-1 of the finished product after qualified puts in storage;
The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 3: as shown in Fig. 1 to Fig. 2 and Fig. 5 to Fig. 7, the method of example 1 or 2 is adopted to add section chief's tooth bar, when producing long tooth bar, the concrete aligning method of thin slice rack-shaped part 1-1 is: first on the mould of rack shapes, the sheet parts of long rack-shaped is connected to form with thin slice rack-shaped part 1-1 more than a slice, then sheet parts multilayer being connected to form long rack-shaped superposes, the mode that the long rack-shaped sheet parts that the long rack-shaped sheet parts of upper a slice splicing and lower a slice are spliced carries out staggered superposition is spliced, long rack shapes is formed with the sheet parts of the long rack-shaped of multi-layer spliced, and the connecting hole after the long rack-shaped sheet parts superposition of multi-disc is overlapped into through hole, the gear made is arranged on the axle in the casing of gearbox, be assembled into gearbox.
Example 4: as shown in Fig. 1 and Fig. 8 to Figure 10, adopts the method machining cylindrical gear of example 1 or 2, and adopts following procedure of processing:
Step 1): wherein a kind of method that the 45# steel plate of 1.8mm thickness adopts punching press, Linear cut, laser cutting, plasma cut, high pressure liquid muscle power to cut is processed into thin slice circular pieces 1-2, thin slice circular pieces 1-2 there are 4 connecting holes 2, outside diameter of gear 300mm;
Step 2): carry out Quenching Treatment to the thin slice circular pieces 1-2 after shaping, quenching adopts any one of the technique such as high-frequency quenching, mid frequency induction hardening or heat-treatment furnace heating quenching;
Step 3): the mould then 50 plate sheet circular pieces 1-2 being entered roller gear shape carries out stacking splicing, forms roller gear moulding, and the connecting hole 2 after 50 plate sheet parts 1 superpose is overlapped into through hole;
Step 4): being then fixed connection by inserting connector between the connecting hole of the roller gear after above-mentioned moulding, forming straight spur gear 5-3;
Step 5): the inspection of semifinished product is carried out to described straight spur gear 5-3, the qualified straight spur gear 5-3 reaching drawing configuration design requirement enters next step, defective straight spur gear 5-3 checks after entering mould 3 squeezing shaping of Cylinder Gear wheel shape again, enters next step after qualified;
Step 6): then by the surperficial prefluxing of above-mentioned straight spur gear 5-3;
Step 7): the metal powder be then coated with outward at scaling powder is selected from the mixing of following any one or two or more arbitrary proportions: lead powder, glass putty, copper powder, aluminium powder, and metal powder is filled between each sheet parts;
Step 8): then the straight spur gear 5-3 scribbling metal powder is carried out Fast Sintering technique in the high frequency coil of electronics coreless induction furnace, form sintering straight spur gear 5-3, in vacuum tank, complete gear mass sintering process;
Step 9): then the straight spur gear 5-3 of above-mentioned thermal sintering is carried out product inspection, qualified finished product straight spur gear 5-3 puts in storage, defective straight spur gear 5-3 checks after carrying out the process of gear outer contour surface again, and the finished product straight spur gear 5-3 after qualified puts in storage;
The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 5: as shown in Fig. 1, Fig. 8, Fig. 9 and Figure 19, adopt any one method of above-mentioned example 1 to example 2 and example 4 when processing column helical gear, the mould that thin slice circular pieces 1-2 enters cylindric spiral gear shape carries out stacking splicing, can cylindric spiral gear be processed, when sintering in vacuum tank, close vavuum pump, open intake valve fast, make air inlet fast in vacuum tank, when waiting until pressure and normal-pressure balance in vacuum tank, cut out intake valve reopens vavuum pump and carries out negative-pressure ward; The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 6: as Fig. 1, Fig. 8, shown in Fig. 9 and Figure 22, adopt any one method of above-mentioned example 1 to example 2 and example 4 when processing turriform helical gear, the mould entering turriform helical shape with the thin slice circular pieces 1-2 of different-diameter carries out stacking splicing, turriform helical gear can be processed, when sintering in vacuum tank, close vavuum pump, open intake valve fast, make air inlet fast in vacuum tank, by the time in vacuum tank when pressure and normal-pressure balance, cut out intake valve reopens vavuum pump and carries out negative-pressure ward, above-mentioned rapid pressure and fast decompression process hocket twice, the gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 7: as shown in Fig. 1, Figure 33 to Figure 35, adopt any one method of above-mentioned example 1 to example 2 and example 4 when processing profiled gear, the mould that thin slice special shape gear part 1-15 enters special shape gear shape carries out stacking splicing, can process special shape gear; The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 8: as shown in Figure 1, Figure 25, shown in Figure 26, adopt any one method of above-mentioned example 1 to example 2 and example 4 when machining interal, the mould that thin slice internal gear parts 1-20 enters internal gear shape carries out stacking splicing, can process internal gear; The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 9: as shown in Fig. 1, Figure 11 to Figure 14, during machining cylindrical gear, and adopts following procedure of processing:
Step 1): wherein a kind of method that the 45# steel plate of 2.5mm thickness adopts punching press, Linear cut, laser cutting, plasma cut, high pressure liquid muscle power to cut is processed into the semicircle part of thin slice, outside diameter of gear 800mm;
Thin slice left semicircle shape part 1-3, thin slice right semicircular part 1-4, thin slice first circular pieces 1-5 and thin slice lower semi-circular part 1-6 is formed after the semicircle part of thin slice rotates;
Step 2): then thin slice left semicircle shape part 1-3 and thin slice right semicircular part 1-4 is entered the mould 3 of roller gear shape as bottom, placing sheets first circular pieces 1-5 and thin slice lower semi-circular part 1-6 on it, placing sheets left semicircle shape part 1-3 and thin slice right semicircular part 1-4 again after stacking, two-layer mutual circulation repeats placement 20 layers above, staggered superposition between every one deck, form roller gear moulding, the connecting hole 2 after superposition is overlapped into through hole;
Step 3) identical with example 2 to step 9);
The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 10: as shown in Fig. 1, Figure 11 to Figure 13 and Figure 20, adopt any one method of above-mentioned example 1 to example 2 and example 9 when processing column helical gear, the mould that the semicircle part of thin slice enters cylindric spiral gear shape carries out staggered superposition splicing, can process the cylindric spiral gear of medium-sized volume; The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 11: as shown in Fig. 1, Figure 11 to Figure 13 and Figure 23, adopt any one method of above-mentioned example 1 to example 2 and example 9 when processing turriform helical gear, carry out staggered superposition splicing with the mould that the semicircle part of the thin slice of different-diameter enters turriform helical shape, the turriform helical gear of medium-sized volume can be processed; The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 12: as shown in Fig. 1, Figure 36 Figure 38, adopt any one method of above-mentioned example 1 to example 2 and example 9 when processing profiled gear, the mould that the left half special shape gear part 1-16 thin slice of thin slice right half first special shape gear part of special shape gear part 1-17 thin slice 1-18, second special shape gear part of thin slice 1-19 enter special shape gear shape carries out stacking splicing, can process the special shape gear of medium-sized volume; The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 13: as shown in Figure 1, Figure 2 shown in 7 to Figure 29, adopt any one method of above-mentioned example 1 to example 2 and example 9 when machining interal, the mould that thin slice 1/2 internal gear parts 1-21 enters internal gear shape carries out stacking splicing, can process the internal gear of medium-sized volume; The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 14: as shown in Fig. 1, Figure 15 to Figure 18, when processing medium-and-large-sized roller gear, and adopts following procedure of processing:
Step 1): wherein a kind of method that the steel plate of 4mm thickness adopts punching press, Linear cut, laser cutting, plasma cut, high pressure liquid muscle power to cut is processed into thin slice 1/4 circular pieces, outside diameter of gear 1000mm;
Thin slice 1/4 circular pieces is formed after rotating: upper thin slice 1/4 circular pieces 1-7, lower thin slice 1/4 circular pieces 1-8, right thin slice 1/4 circular pieces 1-9, left thin slice 1/4 circular pieces 1-10, upper left thin slice 1/4 circular pieces 1-11, upper right thin slice 1/4 circular pieces 1-12, bottom left thin slice 1/4 circular pieces 1-13, bottom right thin slice 1/4 circular pieces 1-14;
Step 2): then upper thin slice 1/4 circular pieces 1-7 and lower thin slice 1/4 circular pieces 1-8 and right thin slice 1/4 circular pieces 1-9 and left thin slice 1/4 circular pieces 1-10 is entered the mould 3 of roller gear shape as bottom, it places upper left thin slice 1/4 circular pieces 1-11 and upper right thin slice 1/4 circular pieces 1-12 and bottom left thin slice 1/4 circular pieces 1-13 and bottom right thin slice 1/4 circular pieces 1-14, two-layer mutual circulation repeats placement 40 layers above, staggered superposition between every one deck, form roller gear moulding, the connecting hole 2 after superposition is overlapped into through hole;
Step 3) identical with example 1 to step 9);
When sintering in vacuum tank, close vavuum pump, open intake valve fast, make air inlet fast in vacuum tank, by the time, in vacuum tank when pressure and normal-pressure balance, close intake valve and reopen vavuum pump and carry out negative-pressure ward, above-mentioned rapid pressure and fast decompression process hocket three times;
The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 15: as shown in Fig. 1, Figure 15 to Figure 18, when adopting any one method processing column helical gear of above-mentioned example 1 to example 2 and example 9, the mould that thin slice 1/4 circular pieces enters cylindric spiral gear shape carries out staggered superposition splicing, can process the cylindric spiral gear of medium-sized volume; The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 16: as shown in Fig. 1, Figure 15 to Figure 17 and Figure 24, when adopting any one method processing turriform helical gear of above-mentioned example 1 to example 2 and example 9, the mould entering turriform helical shape with thin slice 1/4 circular pieces of different-diameter carries out staggered superposition splicing, can process the turriform helical gear of medium-sized volume; The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 17: as shown in Fig. 1, Figure 15-17, when adopting the processing profiled gear of any one method of above-mentioned example 1 to example 2 and example 9,4 plate sheet 1/4 special shape gear parts are entered the mould of special shape gear shape as bottom, it places other 4 plate sheet 1/4 special shape gear parts, two-layer mutual circulation repeats placement 50 layers above, staggered superposition between every one deck, forms special shape gear moulding, connecting hole 2 after superposition is overlapped into through hole, can process the special shape gear of medium-sized volume; The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 18: as shown in Fig. 1, Figure 30 to Figure 32, when adopting any one method machining interal of above-mentioned example 1 to example 2 and example 9,4 plate sheet 1/4 internal gear parts 1-22 are entered the mould of internal gear shape as bottom, it places other 4 plate sheet 1/4 internal gear parts 1-22, two-layer mutual circulation repeats placement 60 layers above, staggered superposition between every one deck, forms internal gear moulding, connecting hole 2 after superposition is overlapped into through hole, can process the internal gear of medium-sized volume; The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
Example 19: when producing large gear, according to the concrete shape of gear contour dimension and gear, is divided into the web gear part of some deciles according to the number of teeth by gear;
Such as: thin slice 1/8 gear part, thin slice 1/16 gear part, thin slice 1/24 gear part, thin slice 1/30 gear part, thin slice 1/40 gear part;
Such as: produce diameter more than 20 meters ultra-large type gears time, can the limit two of gear gear teeth are divided into a slice web gear part; The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
The web gear part of above-mentioned segmentation is according to segmentation multiple, the cross section of complete gear is formed after rotary splicing, the mould of gear shape is entered as bottom after the web gear part splicing of above-mentioned segmentation, it places the spliced web gear part of other one deck, two-layer mutual circulation repeats to place the thickness needed, staggered superposition between every one deck, formative gear moulding above, connecting hole 2 after superposition is overlapped into through hole, can process the gear of large-scale volume.
Below by reference to the accompanying drawings embodiments of the present invention are explained in detail; but the present invention is not limited thereto; in the ken that person of ordinary skill in the field possesses; can also make a variety of changes under the prerequisite not departing from present inventive concept; person of ordinary skill in the field is from above-mentioned design; without performing creative labour, done all conversion, all drop within protection scope of the present invention.
Claims (9)
1. a sintered gear(s) gearbox, described gearbox comprises casing, axle, gear, is provided with axle in casing, and axle has gear, it is characterized in that: the sintered gear(s) that gear adopts a kind of multi-disc to superpose;
Described gear comprises gear mass (5);
Described gear mass (5) is formed by stacking mutually by the toothed sheet parts (1) of multi-disc through quenching, between each sheet parts (1) and surface is filled with metal powder, described sheet parts (1) has a connecting hole (2) at least, connecting hole (2) after multi-disc sheet parts (1) superposition is overlapped into through hole, gear mass (5) is fixedly connected into connector between connecting hole (2), gear mass (5) is after sintering and cool, metal powder is frozen into metal and is filled between each sheet parts (1) of gear mass (5) and the surface of gear mass (5), and adopt following procedure of processing:
Step 1): sheet metal is machined into toothed sheet parts (1); Described sheet parts (1) has a connecting hole (2) at least;
Step 2): Quenching Treatment is carried out to the sheet parts (11) after shaping;
Step 3): the mould (3) then multi-disc sheet parts (1) being entered gear shape carries out stacking splicing, formative gear moulding, and the connecting hole (2) after multi-disc sheet parts (1) superposition is overlapped into through hole;
Step 4): be then fixed connection, formative gear body (5) by inserting connector between the connecting hole (2) of the gear after above-mentioned moulding;
Step 5): the gear mass 5 to described) carry out the inspection of semifinished product, qualified gear mass 5) and entering next step, defective gear mass (5) is checked after entering the mould squeezing shaping of gear shape again, enters next step after qualified;
Step 6): then by the surperficial prefluxing of said gear body (5);
Step 7): then at the outer matel coated powder of scaling powder, metal powder is filled between each sheet parts (1);
Step 8): then the gear scribbling metal powder is carried out sintering process, form sintered gear(s);
Step 9): then the gear of above-mentioned thermal sintering is carried out product inspection, qualified finished gear warehouse-in, defective gear is checked after carrying out the process of gear outer contour surface again, the finished gear warehouse-in after qualified;
The gear made is arranged on the axle in the casing of gearbox, is assembled into gearbox.
2. a kind of sintered gear(s) gearbox according to claim 1, it is characterized in that: when gear makes, adopt wherein a kind of method of punching press, Linear cut, laser cutting, plasma cut, the cutting of high pressure liquid muscle power, by toothed for sheet metal machine-shaping sheet parts (1).
3. a kind of sintered gear(s) gearbox according to claim 1, is characterized in that: when gear makes, and the metal powder that scaling powder is coated with outward is selected from the mixing of following any one or two or more arbitrary proportions: lead powder, glass putty, copper powder, aluminium powder.
4. a kind of sintered gear(s) gearbox according to claim 1, is characterized in that: when gear makes, complete gear mass (5) sintering process in vacuum tank.
5. a kind of sintered gear(s) gearbox according to claim 1, its character is: when gear makes, wherein a kind of method that quenching adopts high-frequency quenching, mid frequency induction hardening or heat-treatment furnace to quench.
6. the sintered gear(s) gearbox according to claim 1-5, when producing long tooth bar (5-2), the aligning method of the sheet parts (1) of rack-shaped, it is characterized in that: on the mould of rack shapes, the sheet parts (1) of long tooth bar (5-2) shape is connected to form with thin slice rack-shaped part (1-1) more than a slice, the mode that long tooth bar (5-2) shape sheet parts (1) that long tooth bar (5-2) shape sheet parts (1) of upper a slice splicing and lower a slice are spliced carries out staggered superposition is spliced, long tooth bar (5-2) shape is formed with the sheet parts (1) of long tooth bar (5-2) shape of multi-layer spliced, and the connecting hole (2) after the long tooth bar of multi-disc (5-2) shape sheet parts (1) superposition is overlapped into through hole.
7. the sintered gear(s) gearbox according to claim 1-5, when producing circular gear, the aligning method of sheet parts (1), it is characterized in that: on the mould (3) of gear shape, circular sheet parts (1) is connected to form with shaping thin slice circular arc part more than a slice, the mode that the sheet parts (1) of the circle that sheet parts (1) and lower one deck of the circle of last layer splicing splice carries out staggered superposition is spliced, with the sheet parts of the circle of multi-layer spliced (1) formative gear shape, and the connecting hole (2) after the sheet parts of multi-layer circular (1) superposition is overlapped into through hole.
8. the sintered gear(s) gearbox according to claim 1-5, when producing special shape gear, the aligning method of sheet parts (1), it is characterized in that: on the mould (3) of special shape gear shape, the sheet parts (1) of special shape gear is connected to form with the fragment of the sheet parts (1) of shaping special shape gear more than a slice, the mode that the sheet parts (1) of the special shape gear that sheet parts (1) and lower one deck of the special shape gear of last layer splicing splice carries out staggered superposition is spliced, with the sheet parts of the circle of multi-layer spliced (1) formative gear shape, and the connecting hole (2) after the sheet parts of multi-layer circular (1) superposition is overlapped into through hole.
9. sintered gear(s) gearbox according to claim 4, it is characterized in that: when gear makes, when sintering in vacuum tank, close vavuum pump, open intake valve fast, make air inlet fast in vacuum tank, when waiting until pressure and normal-pressure balance in vacuum tank, cut out intake valve reopens vavuum pump and carries out negative-pressure ward, and above-mentioned rapid pressure and fast decompression process hocket once.
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| CN201510463398.7A CN105127702A (en) | 2015-08-02 | 2015-08-02 | Speed changing box for sintered gear |
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| CN201510463398.7A CN105127702A (en) | 2015-08-02 | 2015-08-02 | Speed changing box for sintered gear |
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| JPS5965665A (en) * | 1982-10-05 | 1984-04-13 | Yamaha Motor Co Ltd | Gear |
| CN1270547A (en) * | 1997-09-13 | 2000-10-18 | 大众汽车有限公司 | Member comprising several layers of a flat material and method for making the same |
| CN1412456A (en) * | 2002-11-20 | 2003-04-23 | 赵永彬 | Gear and its production method |
| CN1554879A (en) * | 2003-12-25 | 2004-12-15 | 中国船舶重工集团公司第七�三研究所 | Front and rear tao half orthogonal gear device |
| CN201193694Y (en) * | 2008-04-30 | 2009-02-11 | 上海名优办公设备有限公司 | Combination gears |
| CN101823148A (en) * | 2010-05-17 | 2010-09-08 | 江苏滔海机械制造有限公司 | Once-fired molding process for powder metallurgy brake shoes |
| CN102774067A (en) * | 2011-05-10 | 2012-11-14 | 陈文进 | Method for manufacturing soaking plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5965665A (en) * | 1982-10-05 | 1984-04-13 | Yamaha Motor Co Ltd | Gear |
| CN1270547A (en) * | 1997-09-13 | 2000-10-18 | 大众汽车有限公司 | Member comprising several layers of a flat material and method for making the same |
| CN1412456A (en) * | 2002-11-20 | 2003-04-23 | 赵永彬 | Gear and its production method |
| CN1554879A (en) * | 2003-12-25 | 2004-12-15 | 中国船舶重工集团公司第七�三研究所 | Front and rear tao half orthogonal gear device |
| CN201193694Y (en) * | 2008-04-30 | 2009-02-11 | 上海名优办公设备有限公司 | Combination gears |
| CN101823148A (en) * | 2010-05-17 | 2010-09-08 | 江苏滔海机械制造有限公司 | Once-fired molding process for powder metallurgy brake shoes |
| CN102774067A (en) * | 2011-05-10 | 2012-11-14 | 陈文进 | Method for manufacturing soaking plate |
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Application publication date: 20151209 |