CN107120357A - A kind of bell shell structure of drive shaft and its technique processing method - Google Patents
A kind of bell shell structure of drive shaft and its technique processing method Download PDFInfo
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- CN107120357A CN107120357A CN201710372854.6A CN201710372854A CN107120357A CN 107120357 A CN107120357 A CN 107120357A CN 201710372854 A CN201710372854 A CN 201710372854A CN 107120357 A CN107120357 A CN 107120357A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
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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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/009—Pearlite
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0004—Materials; Production methods therefor metallic
- F16D2200/0008—Ferro
- F16D2200/0021—Steel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0038—Surface treatment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0038—Surface treatment
- F16D2250/0053—Hardening
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention belongs to Automobile drive accessory technical field, there is provided a kind of bell shell structure of drive shaft and its technique processing method, include main casing and axle portion body, raceway groove chamfer angle is diminished from left end to right-hand member, axle portion body includes spline part and rigid connector portion, there is cambered surface chamfering section between the left end and main casing of spline part, there is lower concave arc groove between the right-hand member of spline part and rigid connector portion.Interior space body is lathed to the inwall of embryo material, whole embryo material is subjected to heating again and carries out axle portion body progress finish forge, finish forge is by extrusion molding of axle portion body, or axle portion body portion is secondary forming, it is shaped spline part, the good embryo material of milling carries out hardness processing and spline applies lubrication oil processing, it be ensure that the advantage of the invention is that raceway groove chamfer angle to try one's best when steel ball is turned round in the position at center, improve bearing capacity, avoid causing ballistic work to reduce because occurring temper brittleness, overall torsional performance is strong, so as to ensure whole hardness requirement.
Description
Technical field
The invention belongs to Automobile drive accessory technical field, it is related to a kind of bell shell structure of drive shaft and its PROCESS FOR TREATMENT side
Method.
Background technology
In order that automobile power is transmitted, driving axis can be used, it is at most ball cage type drive axle to use at present
Assembly, whether circular arc alley or liner ball road all preferably solve the problems, such as constant speed drive to such a driving axis, and pass
Pass operating angle big, efficiency high.The shortcoming of existing cage spherical shell structure is that whole housing interior structure setting is unreasonable, is caused
Automobile suffering in steering procedure, brings certain potential safety hazard in the process of moving, at the same carry out PROCESS FOR TREATMENT when by
It is difficult to control to and realizes in the improper hydraulic performance decline and prior art that can cause machine components of processing method, and drive shaft is bell
Shell transmits moment of torsion and has the place moved axially on a small quantity, and mostly using spline connection, spline structure of the prior art is set here
Put unreasonable, surface lubrication effect is poor, have impact on overall torsional performance.
The content of the invention
The technical problems to be solved by the invention are the present situations for prior art, and provide one kind and rotate smooth, carrying
Ability is good, it is ensured that operation stability, intensity and the bell shell structure of the good drive shaft of hardness and its technique processing method.
The present invention solve the technical scheme that is used of above-mentioned technical problem for：A kind of bell shell structure of drive shaft, includes
There is interior space body, steel ball on the inside of main casing and axle portion body, described main casing and axle portion body integrally connected, described main casing
It is arranged in interior space body, it is characterised in that described interior space body includes upper edge interference fit portion and lower space edge is matched somebody with somebody
Conjunction portion, offers steel ball auxiliary section along between interference fit portion and lower space edge auxiliary section on top, matches somebody with somebody in described steel ball
Being provided with conjunction portion on raceway groove, raceway groove has raceway groove chamfering, and described raceway groove chamfer angle is diminished from left end to right-hand member, described
Axle portion body includes spline part and rigid connector portion, has cambered surface chamfering between the left end and main casing of described spline part
The right-hand member joint face composition hardened area of section, described spline part and main casing, the right-hand member of described spline part is with being fixedly connected
There is lower concave arc groove between body portion, fixed slotted eye is longitudinally offered in described rigid connector portion, described fixation slotted eye
The angle on notch two ends edge is 60 degree.
In a kind of above-mentioned bell shell structure of drive shaft, described lower space edge auxiliary section includes entering for being sequentially connected
Mouthful inclined portion, arc lower portion, lower expansion mouth and upper oblique connecting portion, the arc in described arc lower portion is to angle and raceway groove lower surface
Arc is consistent to angle, and described upper oblique connecting portion and the angle of vertical direction are 30 °.
In a kind of above-mentioned bell shell structure of drive shaft, described upper edge interference fit portion is upper including what is be sequentially connected
Curved portions, upper expansion mouth and oblique connecting portion, described upper curved portions and the arc of raceway groove upper surface are consistent to angle.
The measure taken for optimization such scheme is specifically included：
A kind of technique processing method of the bell shell structure of drive shaft, comprises the following steps：
Step 1: the outer wall of the embryo material of main casing is lathed into main casing by lathe, the inwall of embryo material is lathed in
Space body, then whole embryo material is carried out into heating carry out axle portion body carrying out finish forge, finish forge be by extrusion molding of axle portion body, or
Axle portion body portion is secondary forming, that is, is shaped spline part, then upsetting rigid connector portion；
Step 2: interior space bulk channel is carried out into turnning and milling by lathe, and cambered surface chamfering section is milled out and recessed in spline part
Arc groove, then rigid connector portion is put into the fixed slotted eye of progress cold extrusion extrusion in mould；
Step 3: hardness processing will be carried out through the good embryo material of milling in step 2；
Step 4: being ground first by grinder to end flat and then to ditch through step 3 hardness processing embryo material
Road is ground, the axle portion body of embryo material is ground again, finally finished product is ground to the interior space body of embryo material；
Step 5: to spline part is put into an oiling die cavity, carrying out applying spline lubrication oil processing using injection.
In a kind of technique processing method of the above-mentioned bell shell structure of drive shaft, the embryo material of described main casing is
Just, following embryo material is put into carburizing medium first of described hardness process step is heated to 850-920 DEG C to 25Cr2Ni4MoV,
Composition has carburized layer, is then incubated, and then embryo material 25Cr2Ni4MoV hardness is more than or equal to 26HRC, embryo material tissue by normalizing
In there is pearlite and upper bainite, wherein embryo material is heated into the first temperature, first temperature is at least above embryo material
More than 50 DEG C of 25Cr2Ni4MoV critical-temperature, the first temperature range is 850~880 DEG C, secondly by decomposition normalized structure
Part pearlite and upper bainite, embryo material hardness is adjusted in 20~26HRC, wherein temperature be second temperature, second
Temperature is chosen according to the hardness after first step normalizing, and when hardness range is 26~30HRC after normalizing, second temperature scope is
640~660 DEG C, when hardness range is 31~33HRC after normalizing, second temperature scope is 590~610 DEG C, hard after normalizing
Degree >=34HRC, second temperature scope is 570~590 DEG C, and finally tempering is quickly cooled down after coming out of the stove by water cooling, and cool time is 1
Minute, material leaving water temperature is 150 DEG C.
It is described that embryo material is being heated to first in a kind of technique processing method of the above-mentioned bell shell structure of drive shaft
Also need quickly to be cooled down after temperature, embryo material 25Cr2Ni4MoV went out surface temperature after cooling and was less than in 2 minutes cool time
250℃。
In a kind of technique processing method of the above-mentioned bell shell structure of drive shaft, C in described 25Cr2Ni4MoV steel
Weight ratio is 0.22-0.30%, and Si weight ratio is 0.15-0.30%, and Mn weight ratio≤0.50%, Cr weight ratio is 1.40-
2.00%, Ni are 3.25-4.00%, and Mo weight ratio is 0.30-0.60%, and V weight ratio is 0.05-0.15%, Cu weight ratio
≤ 0.20%, S weight ratio≤0.015%, P weight ratio≤0.015%.
In a kind of technique processing method of the above-mentioned bell shell structure of drive shaft, described axle portion body deformation extent is
52%~59%, described spline part deformation extent is 13%~19%.
In a kind of technique processing method of the above-mentioned bell shell structure of drive shaft, described lubricating oil is to include 40 DEG C
Kinematic viscosity for 10~200mm2/s mineral have and 0.1~10 mass % the solid powder insoluble in base oil, it is described
Solid powder be selected from organic-molybdenum, tetrafluoroethylene resin, melamine cyanurate, molybdenum disulfide, graphite and dialkyl group two
At least one of group that metal thiocarbamates salt is constituted.
Compared with prior art, the advantage of the invention is that：Raceway groove chamfer angle to try one's best when steel ball is turned round
It ensure that in the position at center, improve bearing capacity, uneven phase upper bainite and high density pearlite can be decomposed, will be hard
Degree is adjusted to 20~26HRC, part uses quick water cooling after tempering is come out of the stove, it is to avoid temper brittleness, is ensureing the same of high intensity
When obtain higher low-temperature impact toughness.Tempering uses rapid cooling after coming out of the stove, it is to avoid cause ballistic work to reduce because occurring temper brittleness,
Overall torsional performance is strong, so as to ensure whole hardness requirement.
Brief description of the drawings
Fig. 1 is this drive shaft clutch can structural representation；
Fig. 2 is the technique processing method flow chart of the bell shell structure of this drive shaft.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
In figure, main casing 1；Axle portion body 2；Interior space body 3；Upper edge interference fit portion 4；Lower space edge auxiliary section 5；Ditch
Road 6；Raceway groove chamfering 7；Spline part 8；Rigid connector portion 9；Cambered surface chamfering section 10；Lower concave arc groove 11；Fixed slotted eye 12；Entrance is oblique
Portion 13；Arc lower portion 14；Lower expansion mouth 15；Upper oblique connecting portion 16；Upper curved portions 17；Upper expansion mouth 18；Oblique connecting portion 19.
As shown in figure 1, the bell shell structure of this drive shaft, includes main casing 1 and axle portion body 2, main casing 1 and axle portion body 2
Integrally connected, the inner side of main casing 1 has interior space body 3, and steel ball is arranged in interior space body 3, and it is empty that interior space body 3 includes upper edge
Between auxiliary section 4 and lower space edge auxiliary section 5, offered on top along between interference fit portion 4 and lower space edge auxiliary section 5
Steel ball auxiliary section, being provided with steel ball auxiliary section on raceway groove 6, raceway groove 6 has raceway groove chamfering 7, and the angle of raceway groove chamfering 7 is by left end
Diminish to right-hand member, so partly in order to facilitating the loading of steel ball, because the angle of raceway groove chamfering 7 is diminished from left end to right-hand member,
The raceway groove chamfering 7 diminished can be limited steel ball again so that tried one's best and ensure that at center when steel ball is turned round
Position, improves bearing capacity, so as to ensure that the stability of rotation, axle portion body 2 includes spline part 8 and rigid connector portion
9, there is cambered surface chamfering section 10, the right-hand member joint face of spline part 8 and main casing 1 is constituted between the left end and main casing 1 of spline part 8
Hardened area, has lower concave arc groove 11 between the right-hand member of spline part 8 and rigid connector portion 9, pass through cambered surface chamfering section 10 here
The moment of torsion after being fixedly mounted with other parts can be ensured with lower concave arc groove 11, it is ensured that the stability of operation, rigid connector
Fixed slotted eye 12 is longitudinally offered in portion 9, the angle on the notch two ends edge of fixed slotted eye 12 is 60 degree.
Lower space edge auxiliary section 5 include be sequentially connected entrance inclined portion 13, arc lower portion 14, lower expansion mouth 15 and on
Oblique connecting portion 16, the arc in arc lower portion 14 is consistent to angle and the arc of the lower surface of raceway groove 6 to angle, upper oblique connecting portion 16 and
The angle of vertical direction be 30 °, upper edge interference fit portion 4 include be sequentially connected upper curved portions 17, upper expansion mouth 18 and
Oblique connecting portion 19, upper curved portions 17 and the arc of the upper surface of raceway groove 6 are consistent to angle, so increase the activity of lower medial surface
Space so that steel ball smooth can be run.
As shown in Fig. 2 in order that the moment of torsion for obtaining the intensity of the whole bell shell structure of drive shaft, toughness and splined shaft is stronger
More preferably, the technique processing method step of the bell shell structure of drive shaft is as follows：Step 1: by lathe by the embryo material of main casing 1
Outer wall is lathed main casing 1, is lathed interior space body 3 to the inwall of embryo material, then whole embryo material is carried out into heating progress axle portion body 2
Finish forge is carried out, finish forge is that 2 extrusion moldings of axle portion body, or the part of axle portion body 2 are secondary forming, that is, is shaped spline part 8,
Upsetting rigid connector portion 9 again, the deformation extent of axle portion body 2 is 52%~59%, and the deformation extent of spline part 8 is 13%~19%；Step
Rapid two, the interior raceway groove 6 of space body 3 is carried out by turnning and milling by lathe, and cambered surface chamfering section 10 and lower concave arc groove is milled out in spline part 8
11, then rigid connector portion 9 is put into the fixed slotted eye 12 of progress cold extrusion extrusion in mould；Step 3: will be through milling in step 2
Good embryo material carries out hardness processing, and the embryo material of main casing 1 is 25Cr2Ni4MoV firm, C weight in 25Cr2Ni4MoV steel here
Than for 0.22-0.30%, Si weight ratio is 0.15-0.30%, Mn weight ratio≤0.50%, Cr weight ratio is 1.40-2.00%,
Ni is 3.25-4.00%, and Mo weight ratio is 0.30-0.60%, and V weight ratio is 0.05-0.15%, Cu weight ratio≤
0.20%, S weight ratio≤0.015%, P weight ratio≤0.015%, hardness process step is following to be put into carburizing Jie by embryo material first
850-920 DEG C is heated in matter, composition has carburized layer, is then incubated, then makes embryo material 25Cr2Ni4MoV hardness big by normalizing
In equal to 26HRC, there is pearlite and upper bainite in embryo material tissue, wherein embryo material is heated into the first temperature, described first
More than 50 DEG C of critical-temperature of the temperature at least above embryo material 25Cr2Ni4MoV, the first temperature range is 850~880 DEG C, secondly logical
The part pearlite and upper bainite decomposed in normalized structure is crossed, embryo material hardness is adjusted in 20~26HRC, wherein temperature
For second temperature, second temperature is chosen according to the hardness after first step normalizing, when hardness range is 26~30HRC after normalizing,
Second temperature scope is 640~660 DEG C, when hardness range is 31~33HRC after normalizing, and second temperature scope is 590~610
DEG C, hardness >=34HRC after normalizing, second temperature scope is 570~590 DEG C, by the fast quickly cooling of water cooling after finally tempering is come out of the stove
But, cool time is 1 minute, and material leaving water temperature is 150 DEG C；Also need to carry out fast quickly cooling after embryo material to be heated to the first temperature
But, cool time in 2 minutes, embryo material 25Cr2Ni4MoV go out cooling after surface temperature be less than 250 DEG C；Step 4: through step 3
Hardness processing embryo material is ground to end flat by grinder and then raceway groove 6 is ground first, axle again to embryo material
Portion's body 2 is ground, is finally ground finished product to the interior space body 3 of embryo material；Step 5: to spline part 8 is put into an oiling
In die cavity, carry out applying spline lubrication oil processing using injection, lubricating oil be include 40 DEG C of kinematic viscosity be 10~
200mm2/s mineral have and 0.1~10 mass % the solid powder insoluble in base oil, solid powder be selected from organic-molybdenum,
Tetrafluoroethylene resin, melamine cyanurate, molybdenum disulfide, graphite and dialkyldithiocarbamacompositions metal salt are constituted
At least one of group.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from scope defined in the spirit of the present invention.
Claims (9)
1. a kind of bell shell structure of drive shaft, includes main casing and axle portion body, described main casing and axle portion body integrally connected,
There is interior space body, steel ball is arranged in interior space body, it is characterised in that described interior space body bag on the inside of described main casing
Upper edge interference fit portion and lower space edge auxiliary section are included, on top along between interference fit portion and lower space edge auxiliary section
Steel ball auxiliary section is offered, being provided with described steel ball auxiliary section on raceway groove, raceway groove has raceway groove chamfering, described raceway groove
Chamfer angle is diminished from left end to right-hand member, and described axle portion body includes spline part and rigid connector portion, described spline
There is cambered surface chamfering section, described spline part and the right-hand member joint face composition quenched zone of main casing between the left end and main casing in portion
Domain, has longitudinal direction in lower concave arc groove, described rigid connector portion between the right-hand member of described spline part and rigid connector portion
Offer fixed slotted eye, the angle on the notch two ends edge of described fixation slotted eye is 60 degree.
2. the bell shell structure of a kind of drive shaft according to claim 1, it is characterised in that described lower space edge coordinates
Portion includes the entrance inclined portion, arc lower portion, lower expansion mouth and the upper oblique connecting portion that are sequentially connected, the arc in described arc lower portion to
Angle and the arc of raceway groove lower surface are consistent to angle, and described upper oblique connecting portion and the angle of vertical direction are 30 °.
3. a kind of bell shell structure of drive shaft according to claim 2, it is characterised in that described upper edge interference fit
Portion includes upper curved portions, upper expansion mouth and the oblique connecting portion being sequentially connected, described upper curved portions and raceway groove upper surface
Arc is consistent to angle.
4. a kind of technique processing method of the bell shell structure of drive shaft, comprises the following steps：
Step 1: the outer wall of the embryo material of main casing is lathed into main casing by lathe, interior space is lathed to the inwall of embryo material
Body, then whole embryo material is subjected to heating progress axle portion body progress finish forge, finish forge is by extrusion molding of axle portion body, or axle portion
Body portion is secondary forming, that is, is shaped spline part, then upsetting rigid connector portion；
Step 2: interior space bulk channel is carried out into turnning and milling by lathe, and cambered surface chamfering section and lower concave arc groove are milled out in spline part,
Rigid connector portion is put into mould again and carries out the fixed slotted eye of cold extrusion extrusion；
Step 3: hardness processing will be carried out through the good embryo material of milling in step 2；
Step 4: being ground first by grinder to end flat through step 3 hardness processing embryo material and then raceway groove being entered
Row grinding, the axle portion body of embryo material is ground again, finished product finally is ground to the interior space body of embryo material；
Step 5: to spline part is put into an oiling die cavity, carrying out applying spline lubrication oil processing using injection.
5. the technique processing method of the bell shell structure of a kind of drive shaft according to claim 4, it is characterised in that described
The embryo material of main casing is 25Cr2Ni4MoV firm, and following embryo material is put into carburizing medium first of described hardness process step adds
Heat is to 850-920 DEG C, and composition has carburized layer, is then incubated, is then more than or equal to embryo material 25Cr2Ni4MoV hardness by normalizing
There is pearlite and upper bainite in 26HRC, embryo material tissue, wherein embryo material is heated into the first temperature, first temperature is extremely
More than 50 DEG C of the critical-temperature more than embryo material 25Cr2Ni4MoV less, the first temperature range is 850~880 DEG C, secondly by decomposition
Part pearlite and upper bainite in normalized structure, make embryo material hardness be adjusted in 20~26HRC, and wherein temperature is second
Temperature, second temperature is chosen according to the hardness after first step normalizing, when hardness range is 26~30HRC after normalizing, the second temperature
It is 640~660 DEG C to spend scope, when hardness range is 31~33HRC after normalizing, and second temperature scope is 590~610 DEG C, when
Hardness >=34HRC after normalizing, second temperature scope is 570~590 DEG C, and finally tempering is quickly cooled down after coming out of the stove by water cooling, cold
But the time is 1 minute, and material leaving water temperature is 150 DEG C.
6. the technique processing method of the bell shell structure of a kind of drive shaft according to claim 5, it is characterised in that described
Also need quickly to be cooled down after embryo material to be heated to the first temperature, cool time, embryo material 25Cr2Ni4MoV went out in 2 minutes
Surface temperature is less than 250 DEG C after cooling.
7. the technique processing method of the bell shell structure of a kind of drive shaft according to claim 5, it is characterised in that described
In 25Cr2Ni4MoV steel C weight ratio be 0.22-0.30%, Si weight ratio be 0.15-0.30%, Mn weight ratio≤0.50%,
Cr weight ratio is 1.40-2.00%, and Ni is 3.25-4.00%, and Mo weight ratio is 0.30-0.60%, and V weight ratio is 0.05-
0.15%, Cu weight ratio≤0.20%, S weight ratio≤0.015%, P weight ratio≤0.015%.
8. the technique processing method of the bell shell structure of a kind of drive shaft according to claim 4, it is characterised in that described
Axle portion body deformation extent is 52%~59%, and described spline part deformation extent is 13%~19%.
9. the technique processing method of the bell shell structure of a kind of drive shaft according to claim 4, it is characterised in that described
Lubricating oil is to include that the mineral that 40 DEG C of kinematic viscosity is 10~200mm2/s have and 0.1~10 mass % does not dissolve in base
The solid powder of oil, described solid powder is selected from organic-molybdenum, tetrafluoroethylene resin, melamine cyanurate, curing
At least one of group that molybdenum, graphite and dialkyldithiocarbamacompositions metal salt are constituted.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11149794B2 (en) | 2019-02-07 | 2021-10-19 | Aktiebolaget Skf | Bearing cage segment of a sheet metal cage |
| US11149793B2 (en) * | 2019-02-07 | 2021-10-19 | Aktiebolaget Skf | Bearing cage segment including alignment element |
| CN115139066A (en) * | 2022-09-01 | 2022-10-04 | 万向钱潮股份公司 | Universal joint bell housing processing method |
| CN115229453A (en) * | 2022-09-23 | 2022-10-25 | 万向钱潮股份公司 | Three-column groove shell processing method |
| US11796001B2 (en) | 2019-02-07 | 2023-10-24 | Aktiebolaget Skf | Method of forming a bearing cage segment including a joint edge in the region of a to-be-formed bridge |
| US11846321B2 (en) | 2019-02-07 | 2023-12-19 | Aktiebolaget Skf | Method of forming a bearing cage segment including a joint edge for welding |
| US11846320B2 (en) | 2021-06-18 | 2023-12-19 | Aktiebolaget Skf | Cage segment for a rolling-element bearing cage |
| US11852196B2 (en) | 2021-06-18 | 2023-12-26 | Aktiebolaget Skf | Cage segment for a rolling-element bearing cage |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006084005A (en) * | 2004-09-17 | 2006-03-30 | Ntn Corp | Fixed type constant velocity universal joint |
| WO2010127513A1 (en) * | 2009-05-08 | 2010-11-11 | 万向钱潮股份有限公司 | Constant velocity driving shaft assembly with large swing angle and large slide range |
| CN104646956A (en) * | 2014-12-29 | 2015-05-27 | 宁波市北仑区环港机械厂 | Process for machining ball cage bell-like shell |
| CN204371970U (en) * | 2014-12-31 | 2015-06-03 | 浙江向隆机械有限公司 | A kind of constant velocity driveshaft ball cage |
| CN204755633U (en) * | 2015-07-21 | 2015-11-11 | 安徽英克尔汽车零部件有限公司 | Bell shell with oil groove is led to inside spin |
| CN206770439U (en) * | 2017-05-24 | 2017-12-19 | 宁波纬尚汽车零部件有限公司 | A kind of bell shell structure of drive shaft |
-
2017
- 2017-05-24 CN CN201710372854.6A patent/CN107120357B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006084005A (en) * | 2004-09-17 | 2006-03-30 | Ntn Corp | Fixed type constant velocity universal joint |
| WO2010127513A1 (en) * | 2009-05-08 | 2010-11-11 | 万向钱潮股份有限公司 | Constant velocity driving shaft assembly with large swing angle and large slide range |
| CN104646956A (en) * | 2014-12-29 | 2015-05-27 | 宁波市北仑区环港机械厂 | Process for machining ball cage bell-like shell |
| CN204371970U (en) * | 2014-12-31 | 2015-06-03 | 浙江向隆机械有限公司 | A kind of constant velocity driveshaft ball cage |
| CN204755633U (en) * | 2015-07-21 | 2015-11-11 | 安徽英克尔汽车零部件有限公司 | Bell shell with oil groove is led to inside spin |
| CN206770439U (en) * | 2017-05-24 | 2017-12-19 | 宁波纬尚汽车零部件有限公司 | A kind of bell shell structure of drive shaft |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11149794B2 (en) | 2019-02-07 | 2021-10-19 | Aktiebolaget Skf | Bearing cage segment of a sheet metal cage |
| US11149793B2 (en) * | 2019-02-07 | 2021-10-19 | Aktiebolaget Skf | Bearing cage segment including alignment element |
| US11796001B2 (en) | 2019-02-07 | 2023-10-24 | Aktiebolaget Skf | Method of forming a bearing cage segment including a joint edge in the region of a to-be-formed bridge |
| US11846321B2 (en) | 2019-02-07 | 2023-12-19 | Aktiebolaget Skf | Method of forming a bearing cage segment including a joint edge for welding |
| US11846320B2 (en) | 2021-06-18 | 2023-12-19 | Aktiebolaget Skf | Cage segment for a rolling-element bearing cage |
| US11852196B2 (en) | 2021-06-18 | 2023-12-26 | Aktiebolaget Skf | Cage segment for a rolling-element bearing cage |
| CN115139066A (en) * | 2022-09-01 | 2022-10-04 | 万向钱潮股份公司 | Universal joint bell housing processing method |
| CN115139066B (en) * | 2022-09-01 | 2022-12-16 | 万向钱潮股份公司 | Universal joint bell housing processing method |
| CN115229453A (en) * | 2022-09-23 | 2022-10-25 | 万向钱潮股份公司 | Three-column groove shell processing method |
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