CN105252961B - A kind of processing method of rubber tire rail wheel - Google Patents
A kind of processing method of rubber tire rail wheel Download PDFInfo
- Publication number
- CN105252961B CN105252961B CN201510734604.3A CN201510734604A CN105252961B CN 105252961 B CN105252961 B CN 105252961B CN 201510734604 A CN201510734604 A CN 201510734604A CN 105252961 B CN105252961 B CN 105252961B
- Authority
- CN
- China
- Prior art keywords
- wheel
- processing
- rim
- asbestos
- spoke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B17/00—Wheels characterised by rail-engaging elements
-
- 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
-
- 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
- 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
-
- 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
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium 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
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- 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
-
- 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
-
- 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
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines
-
- 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
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Turning (AREA)
Abstract
The invention discloses a kind of rubber tire rail wheel and its processing method, belong to wheel manufacture field.The wheel of the present invention includes wheel rim, wheel rim, spoke and wheel hub, and the spoke of the wheel is identical with hub thickness, is 11.8~12.5mm, wheel chemical component weight percentage is：C 0.49~0.52%, Si 0.20~0.40%, Mn 0.50~0.80%, P≤0.02%, S≤0.015%, Cr 0.2~0.3%, Ni≤0.30%, Mo≤0.08%, V≤0.06%, Cu≤0.30%, remaining is Fe and inevitable impurity element.Procedure of processing is：Step 1: be heat-treated to wheel steel, and the wheel steel after heat treatment is rolled, roughing；Step 2: the wheel blanks after roughing are quenched, temper；Step 3: being finished to the wheel after step 2 processing, regulation chi is machined to.
Description
Technical field
The present invention relates to wheel processing technique field, more specifically to a kind of rubber tire rail wheel and its processing
Method.
Background technology
Current track traffic is too small due to the adhesion strength between wheel track, it has to greatly improve the weight of locomotive, obtains
Higher adhesion strength；But excessive deadweight has also accordingly increased cost and the loss of circuit, and due to rubbing between rail wheel
Wipe too small, increase turning radius, the braking distance increase of vehicle, security performance declines, and the safe distance of railway up train is big,
The efficiency of railway operation is reduced, when being applied as urban transportation track, the pollution produced between wheel track is larger.Rubber tire subway is
Vehicle uses rubber tire wheel, and is equipped with the subway system of the track matched and special guider.
The road wheel of rubber tire railcar is travelled on a pair of parallel banding pattern track, and slab track generally uses wide width wing work
The strip that shaped steel or concrete are built up, two parallel orbits are separately positioned on the outside of two rail in left and right, such glue
Subway is taken turns, due to using inflating rubber wheel, driving is steady, noise is low, vibration is small, and due to higher adhesion strength, it is excellent
Many power performance are changed.
A kind of common version of rubber tire subway is to set up rubber tire running gear structure on the basis of traditional steel wheel rail subway
Into train uses rubber tire running gear in normally travel, and steel wheel rail occurs losing heart or quick-fried as safety back-up device in rubber tire
Used when splitting failure, and train by switch section when, because side guide rail is interrupted, be oriented to and walk dress in this section
Put, be route safety traffic of the train along determination.
Use track different for rubber tire Track System, can not also use conventional Train Wheel using steel wheel, in car
It is improved in wheel weight and structure, the wheel after improvement not only requires lightweight, also there is enough structural strengths, because
And, how to mitigate a great problem that wheel weight is this area on the basis of Vehicle Wheel Construction Strength is ensured.
Chinese Patent Application No.：201110046426.7, authorized announcement date：On December 5th, 2012, invention and created name
For：Railway freight-car low-alloy wheel steel and its wheel preparation method, this application case disclose a kind of railway freight-car low-alloy
Wheel steel, its chemical component weight percentage is：C0.70~0.75%, Si0.75~0.95%, Mn0.75~0.90%,
Ni0.15~0.25%, Cr0.25~0.35%, Als0.015~0.030%, P≤0.010%, S≤0.010%, remaining be
Fe and inevitable impurity element.Heat treatment step is：2.0-2.5 hours are incubated at 830-850 DEG C, then water-spraying control wheel
Rim is to less than 550 DEG C, and wheel rim interior metal accelerates to cool down with 2 DEG C/s~5 DEG C/s cooling velocity, is then returned at 500-520 DEG C
Fire processing 4.5-5.0 hours.The main step of the program is to be heat-treated, and does not relate to how to process thin-walled wagon wheel
Method.
The content of the invention
1. the invention technical problem to be solved
It is an object of the invention to overcome in the prior art wheel be difficult to meet rubber tire Track System will to weight and intensity
The deficiency asked processes wheel spoke there is provided a kind of rubber tire rail wheel and its processing method, technical scheme
Thickness is only 11.8~12.5mm, and wheel is lightweight, and intensity is high, and is unlikely to deform in process, it is ensured that processing essence
Degree.
2. technical scheme
To reach above-mentioned purpose, the technical scheme that the present invention is provided is：
A kind of rubber tire rail wheel of the present invention, including wheel rim, wheel rim, spoke and wheel hub, the tread of the wheel is by boring
Spend for 1:10 tilting section and flat segments composition, the spoke of the wheel is identical with hub thickness, is 11.8~12.5mm；In wheel
Wheel rim is provided with line is scrapped, and the distance for scrapping clearing end to the tread of line is 0.62 times of wheel rim thickness.
Preferably, its chemical component weight percentage is：C 0.49~0.52%, Si 0.20~0.40%, Mn 0.50
~0.80%, P≤0.02%, S≤0.015%, Cr 0.2~0.3%, Ni≤0.30%, Mo≤0.08%, V≤0.06%,
Cu≤0.30%, remaining is Fe and inevitable impurity element.
Preferably, described Cr, Ni and Mo content sum are no more than 0.5%.
A kind of processing method of rubber tire rail wheel of the present invention, its procedure of processing is：
Step 1: be heat-treated to wheel steel, and the wheel steel after heat treatment is rolled, slow cooling, roughing, shape
Into wheel blanks；
Step 2: the wheel blanks after roughing are quenched, temper；
Step 3: being finished to the wheel after step 2 processing, given size is machined to.
Preferably, when being quenched in step 2, wheel blanks rise to 830~850 DEG C with furnace temperature, are incubated 2.5~3h, and use stone
Mould 13 pushes down wheel web under mould 12 and asbestos on cotton, to carrying out 200~250s of water-spraying control at wheel rim and tread；Tempering
When, in 480~520 DEG C of inside holdings 3~4 hours.
Preferably, asbestos protection mould mould under mould on asbestos and asbestos, which is bolted, forms, on asbestos mould and
The relative side of mould is fitted with wheel web under asbestos.
Preferably, the fine-processing technique in step 3 is：
1) wheel blanks after step 2 being handled are lifted into the first support block of lathe, and are clamped by interior serrated clips pincers
Rim for automobile wheel fixes wheel level, processing wheel nearside wheel edge, spoke and wheel hub, wheel hub surface roughness≤Ra12.5；
2) change lathe and invert wheel, the second support block is supported step 1) the middle wheel hub surface processed, the 3rd support block
Support step 1) the middle rim faces processed, and clamp interior wheel rim face with outer serrated clips pincers；Process wheel outboard wheel hub face, spoke face
With wheel rim face, 5mm surpluses are stayed, its surface roughness≤Ra12.5；Then tread is processed, its surface roughness≤Ra6.3；
3) processing wheel outboard wheel hub face, spoke face and wheel rim face be to finished size, on wheel rim processing scrap line into
Product size, then processes tread and wheel rim lateral surface, surface roughness≤Ra1.6 of each several part after processing；Machining center hole；
4) change to step 1) in lathe and invert wheel, according to step 1) in method fix, and by interior sawtooth clamp
Jaw is changed to anodontia jaw, and rubber blanket is increased in the first support block, make its upper surface higher than parallels upper surface 0.08~
0.15mm, then processes wheel nearside wheel hub face, spoke face to finished size, then machining center hole processes wheel rim medial surface
To finished size, surface roughness≤Ra1.6 of wheel hub surface, spoke face and wheel rim medial surface；
5) machining center hole is to finished size；
6) 4 uniform screwed holes and 10 uniform through holes are processed on hub for vehicle wheel using numerical control machining center.
Preferably, step 1) in the first support block have 5,5 the first support blocks are circumferentially uniform along lathe central shaft；Institute
State interior sawtooth clamp and be evenly equipped with 3 along lathe central shaft, and interior sawtooth clamp is arranged at intervals with parallels.
Preferably, step 2) in the 3rd support block and outer sawtooth clamp be provided with 3, and the 3rd support block and outer sawtooth
Clamp is along the circumferential uniform intervals branch of lathe central shaft.
Preferably, in finishing passes lathe tool linear velocity Vt=230 ± 30m/min.
3. beneficial effect
The technical scheme provided using the present invention, compared with prior art, is had the advantages that：
(1) a kind of rubber tire rail wheel of the invention, its spoke and hub thickness are smaller, substantially reduce wheel weight
Amount, the alloy design and heat treatment method used causes medium carbon steel wheel on the basis of with higher-strength and hardness significantly
Fracture toughness is improved, so as to ensure that wheel has good usage safety performance；
(2) a kind of processing method of rubber tire rail wheel of the invention, is engaged using support block and sawtooth clamp
Method clamping wheel, accurate positioning, clamping is firm, it is ensured that wheel is indeformable in process；
(3) processing method of a kind of rubber tire rail wheel of the invention, is alternately processed using wheel inner side and outer side
Method carries out finishing processing, and machining accuracy is high, and the radial direction residual stress of spoke and circumferential residual stress are substantially reduced, surface light
Cleanliness improves, and elimination is likely to become the Surface Machining defect such as the too deep tool marks in fatigue crack source.
Brief description of the drawings
Fig. 1 is a kind of structural representation of rubber tire rail wheel of the present invention；
Fig. 2 protects the use state figure of mould for asbestos in the present invention；
Fig. 3 is the clamping processing structural representation in the present invention on the inside of processing wheel；
Fig. 4 processes structural representation for the clamping of processing lateral wheel in the present invention；
Fig. 5 is the clamping processing structural representation in the present invention on the inside of last processing wheel.
Label declaration in schematic diagram：1st, wheel rim；2nd, wheel rim；3rd, line is scrapped；4th, spoke；5th, wheel hub；6th, centre bore；7th, it is interior
Sawtooth clamp；8th, the first support block；801st, parallels；802nd, rubber blanket；9th, the second support block；10th, outer sawtooth clamp；11st, the 3rd
Support block；12nd, mould on asbestos；13rd, mould under asbestos.
Embodiment
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
A kind of rubber tire rail wheel of the present invention, including wheel rim 1, wheel rim 2, spoke 4 and wheel hub 5, the tread of the wheel
It is 1 by taper:10 tilting section and flat segments composition, the spoke 4 of the wheel is identical with the thickness of wheel hub 5, is 11.8~12.5mm；
Provided with line 3 is scrapped on rim for automobile wheel 2, clearing end to the distance of tread for scrapping line 3 is the 0.62 of wheel rim thickness, according to report
The degree of wear of scrap wire 3 judges it is to be required for changing.It is preferred that, the spoke 4 of wheel is identical with the thickness of wheel hub 5, is 12mm；Tread
A diameter of 880mm, a diameter of 1024mm of wheel rim 1, provided with scrapping line on rim for automobile wheel 2, this scraps the clearing end of line to stepping on
The distance in face is the 0.62 of wheel rim thickness, and rim width is 42mm, scraps line width for 6.5mm, and the internal diameter of centre bore 6 is 337mm.
Wheel is processed using following steps：
Step 1: be heat-treated to wheel steel, and the wheel steel after heat treatment is rolled, slow cooling, roughing, shape
Into wheel blanks；The process mainly includes LF refining, application of vacuum, round billet continuous casting formation circular blankses, then heating rolling, and
By the blank slow cooling 4h after rolling, i.e. furnace cooling 4h, white point is eliminated, roughing is carried out afterwards after testing, wheel blanks are formed；
Step 2: the wheel blanks after roughing are quenched, temper；
Wheel blanks are risen to 830~850 DEG C with furnace temperature, 2.5~3h is incubated, and with mould 13 under mould on asbestos 12 and asbestos
Wheel web is pushed down, is connected with, 200~250s of water-spraying control is carried out to wheel rim 1 and wheel rim 2；During tempering, 480~
520 DEG C of inside holdings 3~4 hours, then air cooling.
Asbestos protection mould mould 13 under mould on asbestos 12 and asbestos therein, which is bolted, to be formed, mould and stone on asbestos
The relative side of mould is fitted with wheel web under cotton.The angle of wheel hub 5 and spoke 4 is α on the inside of wheel, then mould 12 inclines on asbestos
The angle of oblique section and flat segments is more than α, less than+3 ° of α；Correspondingly, the tilting section of mould 13 and the angle of flat segments are more than under asbestos
α -3, less than α；So that α is 158 ° as an example, the tilting section of mould 12 and the angle of flat segments are 160 ° on asbestos, mould 13 under asbestos
Tilting section and the angle of flat segments are 156 °.By this structure design, when mould 13 is bolted pressure under mould 12 on asbestos and asbestos
After tight, due to there is differential seat angle, the tension force of tilting section itself makes it be brought into close contact with wheel, effectively can prevent water from entering disc
Place, that is, avoid disc from being quenched processing, reduces the hydrogen content in disc, improves the toughness at spoke 4 and wheel hub 5, can be effective
Prevent the situation that wheel is broken from occurring.
Step 3: being finished to the wheel after step 2 processing, given size is machined to.
Fine-processing technique in step 3 is：
1) wheel blanks after step 2 being handled are lifted into the first support block 8 of lathe, and the first support block has 5,5
Individual first support block 8 is circumferentially uniform along lathe central shaft；There is interior sawtooth clamp 7 periphery, and interior sawtooth clamp 7 is equal along lathe central shaft
3 are furnished with, and interior sawtooth clamp uniform intervals are provided with parallels, rim for automobile wheel 2 is clamped by wheel level by interior sawtooth clamp 7
Fixed, Vt is 210m/min, and feed speed F is 1mm/r, and cutting output Ap is 5mm, processing wheel nearside wheel edge 1, spoke 4 and wheel
Surface roughness≤Ra12.5 at hub 5, wheel hub 5；
2) change lathe and invert wheel, the second support block 9 is supported step 1) the middle wheel hub surface processed, the 3rd support block
11 support steps 1) the middle rim faces processed, and clamp interior wheel rim face with outer sawtooth clamp 10；Vt is 200m/min, processes wheel
Outside wheel hub surface, spoke face and wheel rim face, stay 5mm surpluses, its surface roughness≤Ra12.5；Then tread is processed, its surface
Roughness≤Ra6.3；3rd support block 11 and outer sawtooth clamp 10 are provided with 3, and the 3rd support block 11 and outer serrated clips
10 are clamped along the circumferential uniform intervals branch of lathe central shaft；
3) adjustment Vt is that 250m/min processes wheel outboard wheel hub face, spoke face and wheel rim face to finished size, in wheel rim 2
Upper processing scraps line 3 to finished size, then processes tread and wheel rim lateral surface, and the surface roughness of each several part after processing≤
Ra1.6；Machining center hole 6；
4) change to step 1) in lathe and invert wheel, according to step 1) in method fix, and by interior sawtooth clamp 7
Jaw is changed to anodontia jaw, prevents the other sawtooth damage in the surface after processing；Increase rubber blanket 802 in the first support block 8, make it
Upper surface is higher than parallels 801 0.08~0.15mm of upper surface, preferably 0.1mm, to overcome the gravity of itself to influence, otherwise will lead
Cause the wheel web after processing undesirable；Setting Vt is 250m/min, processing wheel nearside wheel hub face, spoke face to finished product
Size, then machining center hole 6 processes wheel rim medial surface to finished size, the surface of wheel hub surface, spoke face and wheel rim medial surface
Roughness≤Ra1.6；
5) machining center hole 6 is to finished size；
6) 4 uniform screwed holes and 10 uniform through holes are processed on hub for vehicle wheel using numerical control machining center.
Had shown that by research, cutting force and speed directly determine the generation of this cutting heat, and influence machining accuracy and surface
Crudy.When process velocity is relatively low, residual tension is also easy to produce, when process velocity is higher, due to processing temperature rise, easily production
Raw residual compressive stress.Because the spoke thickness of wheel in the present invention is only 11.8~12.5mm, cutting heat is too high will to cause spoke
Plate deforms and influences machining accuracy.
If in addition, can not find the strong point accurately well in process, the cutting stress formed will be difficult to recover,
Cause wheel deformation, be easily broken off when using, security is low.The present invention is first supported with the first support block 8, and passes through interior saw
Wheel is fixedly clamped by toothholder pincers 7 from circumferential, and 3 set interior centerings of sawtooth clamp 7 are good, it is ensured that wheel center and lathe
Center overlapping of axles.Only have in wheel horizontal direction after clamping at wheel hub 5 and contacted with the first support block 8, it is determined that unique positioning
Benchmark, the horizontal machining accuracy in wheel rim 1 and the inner side of wheel hub 5 is high, is that following process is prepared.
Wheel is shifted to after another lathe, by step 1) in cutting face based on position, the second support block 9 and the 3rd support
Block 11 is positioning datum；Clamping step is reserved with wheel rim lateral surface, wheel is clamped by outer sawtooth clamp 10；Then carry out
Preprocessing, stays certain allowance, then be machined to finished size with 250m/min linear velocity, it is ensured that roughness and any surface finish
Degree.
The processing of lateral wheel is completed, wheel is inverted again, to being processed on the inside of wheel.The same line with 250m/min
Speed is machined to finished size, it is ensured that roughness and surface smoothness.
In step 3), 4), 5) in all refer to the processing of centre bore 6, the processing of centre bore 6 is decomposed each by this method
In step, single process on the one hand can be avoided to produce larger cutting heat, it is ensured that precision；On the other hand, at spoke 4 and wheel hub 5
Thickness is smaller, and excessive radial dimension stress is difficult to control, when at work in-process heart hole 6, and cutter can be to the cutting force of wheel
The other end causes the deformation of spoke 4 and influences machining accuracy.
In order to realize the installation of wheel, in addition it is also necessary to multiple through holes and screwed hole are processed at the wheel hub 5 of wheel, in common machine
Support block is needed on bed, it is impossible to hole machined is carried out at wheel hub 5, if removing support block, because wheel hub and spoke thickness are smaller,
Compressive deformation is easy to, machining accuracy is influenceed, therefore hole machined is carried out using numerical control machining center in the present invention.
The chemical component weight percentage of the wheel is：C 0.49~0.52%, Si 0.20~0.40%, Mn 0.50~
0.80%th, P≤0.02%, S≤0.015%, Cr 0.2~0.3%, Ni≤0.30%, Mo≤0.08%, V≤0.06%, Cu
≤ 0.30%, remaining is Fe and inevitable impurity element.
Preferred scheme in the material solution is：C 0.51%, Si 0.27%, Mn 0.74%, P≤0.02%, S≤
0.015%th, Cr 0.23%, Ni 0.03%, Mo 0.010%, V≤0.06%, Cu≤0.30%, remaining is Fe and can not kept away
Exempt from impurity element.
The embodiment scheme of different-alloy content is used in the wheel of table 1
Embodiment 1 is option A, in terms of influence of the alloying element to performance, is that the high intensity of acquisition and toughness coordinate and can adopted
Use microalloying.Si is important intensified element in wheel steel, has strong solution strengthening effect to austenite and ferrite,
Si content increase can improve the thermo-responsive and fragility of material, and a large amount of eutectoid ferrites are separated out, intensity and the toughness reduction of steel, because
Si content is defined as 0.20~0.40% by this present invention.
Mn is important alloying element in wheel steel, can form the alloyed cementite containing Mn, when can reduce perlitic transformation
The forming core of alloyed cementite and long speed, improve quenching degree；Meanwhile, the busy austenite formers of Mn reduce the transformation of pearlite
Temperature, so increase Mn content can hinder the transformation of pearlite, is conducive to the reduction of pearlite synusia spacing.
Cr and Mo are the formation elements of carbide, and Ni can hinder the precipitation of eutectoid ferrite and the transformation of pearlite.In pearl
There is alloying element in the forming process of body of light in ferrite and cementite interface, and diffusion between ferrite and cementite and
Redistribution, a pitch of fins reduces between making pearlite layer, and fine platy cementite can be made to show certain ductility under external force,
Be conducive to improving wheel hardness of steel and plasticity.The tensile strength of wheel rim is 908MPa in the program, and the tensile strength of spoke is
739MPa, Brinell hardness HBW are more than 250.
Referring to table 2, comparative example 1 is common CL60 wheels, and spoke and wheel hub are designed using stock size.Comparative example 2 with it is right
Material in the option A of ratio 1 is identical, and the physical dimension of comparative example 2 is identical with the physical dimension in embodiment 1, and uses this hair
Bright method processing.
The embodiment 1 of table 2 and comparative example 1, the alloy content table (percentage composition wt-%) of comparative example 2
The embodiment 1 of table 3 and comparative example 1, the data of mechanical of comparative example 2
The embodiment 1 of table 4 and comparative example 1, the fracture toughness K of comparative example 2QValue
Embodiment 1 is contrasted with comparative example 1, and the spoke thickness of the present embodiment is smaller, but tensile strength, hardness and fracture toughness
Deng all in preferable level, the performance requirement of stock size wheel can be substantially reached.Material and embodiment in comparative example 2
1 scheme is different, and Cr, Mo, Ni content are different, and the tensile strength and fracture toughness of comparative example 2 are not so good as to use the present embodiment material
The wheel of processing.
Embodiment 2
A kind of rubber tire rail wheel of the present embodiment of the present embodiment, its basic structure and processing method and embodiment 1
Identical, its difference is：The thickness of wheel hub 5 and spoke 4 is 12.2mm, and the turning speed Vt finally finished is 260m/
Option b in min, the alloy content such as table 1 of wheel.Tension test, hardness test etc. are carried out after completion of processing, in tension test
The tensile strength of wheel rim is 916MPa, and the tensile strength of spoke is 752MPa, and Brinell hardness HBW is more than 250.
The embodiment 1 of table 5 and comparative example 1, the alloy content table (percentage composition wt-%) of comparative example 2
Comparative example 3 is set according to embodiment 2, as shown in table 3, the alloying element in comparative example 3 and the alloy in embodiment 2
Element is identical, and makes the physical dimension of comparative example 3 same as Example 2, and comparative example 3 is using conventional machine-tooled method.
The data of mechanical of the embodiment 2 of table 6 and comparative example 3
The fracture toughness K of the embodiment 2 of table 7 and comparative example 3QValue
Found out according to comparing result, it is low with the wheel safety coefficient of size using conventional method processing, due to lacking rationally
Fixed support and processing technology, spoke thickness is smaller, easily occurs thermal deformation at the wheel spoke processed, causes to resist at disc
Tensile strength and fracture toughness reduction, have a strong impact on the quality of wheel.
Understand that wheel of the invention is lightweight, is used suitable for rubber tire system by contrast, the processing provided using the present invention
Method, with higher machining accuracy, wheel is not likely to produce deformation in process, and machining accuracy is high, it is ensured that thin-walled wheel
The intensity of spoke, with higher service life.
Schematical above that the present invention and embodiments thereof are described, the description does not have restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, are designed and the technical scheme without creative
Similar frame mode and embodiment, all should belong to protection scope of the present invention.
Claims (6)
1. a kind of processing method of rubber tire rail wheel, it is characterised in that：Its procedure of processing is：
Step 1: be heat-treated to wheel steel, and the wheel steel after heat treatment is rolled, slow cooling, roughing, form car
Take turns blank；
Step 2: the wheel blanks after roughing are quenched, temper；
Step 3: being finished to the wheel after step 2 processing, given size is machined to；Its fine-processing technique is：
1) wheel blanks after step 2 being handled are lifted into the first support block of lathe, and clamp wheel by interior serrated clips pincers
Wheel rim fixes wheel level, processing wheel nearside wheel edge, spoke and wheel hub, wheel hub surface roughness≤Ra12.5；
2) change lathe and invert wheel, the second support block is supported step 1) the middle wheel hub surface processed, the support of the 3rd support block
Step 1) the middle rim faces processed, and clamp interior wheel rim face with outer serrated clips pincers；Process wheel outboard wheel hub face, spoke face and wheel
Rim face, stays 5mm surpluses, its surface roughness≤Ra12.5；Then tread is processed, its surface roughness≤Ra6.3；
3) processing wheel outboard wheel hub face, spoke face and wheel rim face are to finished size, and processing scraps line to end product rule on wheel rim
It is very little, then process tread and wheel rim lateral surface, surface roughness≤Ra1.6 of each several part after processing；Machining center hole；
4) change to step 1) in lathe and invert wheel, according to step 1) in method fix, and by the jaw of interior sawtooth clamp
Anodontia jaw is changed to, rubber blanket is increased in the first support block, its upper surface is higher than 0.08~0.15mm of parallels upper surface, so
Wheel hub surface, spoke face to finished size on the inside of post-processing wheel, then machining center hole processes wheel rim medial surface to end product rule
It is very little, surface roughness≤Ra1.6 of wheel hub surface, spoke face and wheel rim medial surface；
5) machining center hole is to finished size；
6) 4 uniform screwed holes and 10 uniform through holes are processed on hub for vehicle wheel using numerical control machining center.
2. a kind of processing method of rubber tire rail wheel according to claim 1, it is characterised in that：Quenched in step 2
When, wheel blanks rise to 830~850 DEG C with furnace temperature, are incubated 2.5~3h, and with mould 13 under mould on asbestos 12 and asbestos wheel
Disc is pushed down, to carrying out 200~250s of water-spraying control at wheel rim and tread；It is small in 480~520 DEG C of inside holdings 3~4 during tempering
When.
3. a kind of processing method of rubber tire rail wheel according to claim 2, it is characterised in that：The asbestos protection
Mould mould under mould on asbestos and asbestos, which is bolted, to be formed, the relative side of mould and wheel web under mould and asbestos on asbestos
Laminating.
4. a kind of processing method of rubber tire rail wheel according to claim 1, it is characterised in that：Step 1) in
One support block has 5, and 5 the first support blocks are circumferentially uniform along lathe central shaft；The interior sawtooth clamp is equal along lathe central shaft
3 are furnished with, and interior sawtooth clamp is arranged at intervals with parallels.
5. a kind of processing method of rubber tire rail wheel according to claim 1, it is characterised in that：Step 2) in the 3rd
Support block and outer sawtooth clamp are provided with 3, and the 3rd support block and outer sawtooth clamp along lathe central shaft it is circumferential it is uniform between
Every branch.
6. a kind of processing method of rubber tire rail wheel according to claim 1, it is characterised in that：In finishing passes
Linear velocity Vt=230 ± the 30m/min of lathe tool.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510734604.3A CN105252961B (en) | 2015-10-30 | 2015-10-30 | A kind of processing method of rubber tire rail wheel |
| CN201710749101.2A CN107757245B (en) | 2015-10-30 | 2015-10-30 | A kind of method for fine finishing of rubber tire rail wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510734604.3A CN105252961B (en) | 2015-10-30 | 2015-10-30 | A kind of processing method of rubber tire rail wheel |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710749101.2A Division CN107757245B (en) | 2015-10-30 | 2015-10-30 | A kind of method for fine finishing of rubber tire rail wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105252961A CN105252961A (en) | 2016-01-20 |
| CN105252961B true CN105252961B (en) | 2017-10-13 |
Family
ID=55093027
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710749101.2A Active CN107757245B (en) | 2015-10-30 | 2015-10-30 | A kind of method for fine finishing of rubber tire rail wheel |
| CN201510734604.3A Active CN105252961B (en) | 2015-10-30 | 2015-10-30 | A kind of processing method of rubber tire rail wheel |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710749101.2A Active CN107757245B (en) | 2015-10-30 | 2015-10-30 | A kind of method for fine finishing of rubber tire rail wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN107757245B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110199034A (en) * | 2017-01-18 | 2019-09-03 | 蒂森克虏伯钢铁欧洲股份公司 | The method of wheel is produced in a manner of sheet material structure |
| CN110819779B (en) * | 2019-12-16 | 2020-09-29 | 安徽马钢表面技术股份有限公司 | Water spraying device for cooling outer rim surface of wheel |
| CN111098096B (en) * | 2019-12-31 | 2021-07-09 | 太原重工轨道交通设备有限公司 | Wheel machining method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2487620Y (en) * | 2001-04-23 | 2002-04-24 | 张准胜 | Laser strengthened railway vehicle wheel |
| CN103741032A (en) * | 2013-12-26 | 2014-04-23 | 马钢(集团)控股有限公司 | High-carbon low-alloy wheel steel for locomotive of improving flexibility and wheel preparation method |
| CN104325838A (en) * | 2014-10-22 | 2015-02-04 | 雷帮荣 | High-speed rail wheel and hot-extrusion integrated forming method thereof |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB429896A (en) * | 1935-01-15 | 1935-06-07 | Bochumer Ver Fuer Gubstahlfabr | Vehicle wheels, more particularly one-piece disc wheel for rail vehicles |
| DE2306650C3 (en) * | 1973-02-10 | 1980-02-07 | Schwaebische Huettenwerke Gmbh, 7080 Aalen | Rail wheel with a wheel disc |
| EP0201619B1 (en) * | 1985-05-17 | 1990-08-01 | Wilhelm Hegenscheidt Gesellschaft mbH | Method for the rectification of a railroad wheel profile while saving material |
| WO1993013953A1 (en) * | 1992-01-14 | 1993-07-22 | Sig Schweizerische Industrie-Gesellschaft | Wheel set, process for making it and device for implementing the process |
| FR2707389B1 (en) * | 1993-07-09 | 1995-10-06 | Valdunes | Method for determining the layout of the axial section of a wheel and wheel obtained. |
| FR2786129B1 (en) * | 1998-11-19 | 2000-12-29 | Alstom Tech | SAFETY WHEEL, METHOD FOR MANUFACTURING SUCH A WHEEL AND BOGIE EQUIPPED WITH SUCH A WHEEL |
| RU2407653C1 (en) * | 2009-09-28 | 2010-12-27 | Сергей Николаевич Киселев | All-rolled railroad wheel |
| CN101817094B (en) * | 2010-03-22 | 2011-12-21 | 马鞍山钢铁股份有限公司 | Process for machining medium carbon silicomanganese low alloy steel railway wheel |
| CN202106796U (en) * | 2011-06-03 | 2012-01-11 | 信阳同合车轮有限公司 | Wheel of Brazil rail wagon |
| CN203078211U (en) * | 2012-11-05 | 2013-07-24 | 信阳同合车轮有限公司 | Cast steel wheel of Sierra Leone railway wagon |
| CN103753138A (en) * | 2013-12-26 | 2014-04-30 | 马钢(集团)控股有限公司 | Production method of railway wheels |
| CN204277515U (en) * | 2014-12-08 | 2015-04-22 | 马鞍山市天钧机械制造有限公司 | A kind of lathe tool of wheel processing |
| CN104859369A (en) * | 2015-05-26 | 2015-08-26 | 福建海西防护新材料联合研究院有限公司 | Double-purpose tire |
-
2015
- 2015-10-30 CN CN201710749101.2A patent/CN107757245B/en active Active
- 2015-10-30 CN CN201510734604.3A patent/CN105252961B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2487620Y (en) * | 2001-04-23 | 2002-04-24 | 张准胜 | Laser strengthened railway vehicle wheel |
| CN103741032A (en) * | 2013-12-26 | 2014-04-23 | 马钢(集团)控股有限公司 | High-carbon low-alloy wheel steel for locomotive of improving flexibility and wheel preparation method |
| CN104325838A (en) * | 2014-10-22 | 2015-02-04 | 雷帮荣 | High-speed rail wheel and hot-extrusion integrated forming method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107757245B (en) | 2019-07-19 |
| CN105252961A (en) | 2016-01-20 |
| CN107757245A (en) | 2018-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2707502C (en) | An axle from a seamless tube for railroad vehicles, and a process for manufacturing an axle from a seamless steel tube for railroad vehicles | |
| JP6765495B2 (en) | High strength, high toughness, heat crack resistance Bainite steel wheels for railway transportation and their manufacturing methods | |
| CN104120354B (en) | Rail that a kind of contact fatigue property is excellent and production method thereof | |
| AU2021218136B2 (en) | Pearlite steel rail with rail head hardened layer having uniform hardness gradient and preparation method thereof | |
| KR101499868B1 (en) | Manufacturing method of brake disc for railway vehicle | |
| CN104759848B (en) | Manufacture method of the low floor vehicle with axle bridge | |
| JP6765496B2 (en) | Bainite steel wheels for high toughness railway transportation and their manufacturing methods | |
| JP3516189B2 (en) | Wheels for railway vehicles excellent in wear resistance and heat crack resistance and method of manufacturing the same | |
| CN105252961B (en) | A kind of processing method of rubber tire rail wheel | |
| CN102560228B (en) | Method for producing wheel made of austempered ductile iron (ADI) material | |
| EP3460089A1 (en) | Low cost lean production bainitic steel wheel for rail transit, and manufacturing method therefor | |
| CN101486044B (en) | Method for producing restraint core rod of diameter above 330mm for tandem rolling tube | |
| CN112410649A (en) | Pearlite steel rail and preparation method thereof | |
| CN110904311B (en) | Anti-out-of-roundness wheel steel, wheel and preparation method of wheel | |
| CN104325838A (en) | High-speed rail wheel and hot-extrusion integrated forming method thereof | |
| WO2020067520A1 (en) | Railway wheel | |
| CN103993237B (en) | A kind of anti abrasive bainite turnout rail and production method thereof | |
| CN110468632B (en) | Steel rail for linear-curve transition section and production method thereof | |
| CN112176152B (en) | High-speed rail axle with long fatigue life and speed per hour more than or equal to 400 kilometers and laser quenching method thereof | |
| Sharma et al. | Rail Road Wheel Requirements and Manufacturing Processes | |
| WO2022220237A1 (en) | Railroad wheel | |
| WO2023062886A1 (en) | Railroad wheel | |
| CN106148825B (en) | A kind of bullet train bainite wheel steel and preparation method | |
| CN115431007A (en) | Method for manufacturing elastic wheel | |
| BR112021001259B1 (en) | METHOD FOR MANUFACTURING RAILWAY TRACKS |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210609 Address after: No. 1517, ginkgo Avenue, Cihu high tech Zone, Ma'anshan City, Anhui Province Patentee after: Ma'anshan Guojiao Rail Transit Equipment Manufacturing Co.,Ltd. Address before: 243000 No.2 Yangtang Road, Cihu hi tech Industrial Development Zone, Ma'anshan City, Anhui Province Patentee before: MAANSHAN TIANJUN MACHINERY MANUFACTURING Co.,Ltd. |