CN106799566A - Integrated low-noise automobile hub-bearing unit and preparation method thereof - Google Patents
Integrated low-noise automobile hub-bearing unit and preparation method thereof Download PDFInfo
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- CN106799566A CN106799566A CN201710052250.3A CN201710052250A CN106799566A CN 106799566 A CN106799566 A CN 106799566A CN 201710052250 A CN201710052250 A CN 201710052250A CN 106799566 A CN106799566 A CN 106799566A
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- outer ring
- bolt
- roughness
- product
- grease
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Classifications
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/62—Selection of substances
-
- 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
- B23P15/003—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass bearings
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a kind of integrated low-noise automobile hub-bearing unit and preparation method thereof, including outer ring, seal assembly, steel ball, inner ring, retainer and bolt, the inside of described outer ring is provided with seal assembly, steel ball and retainer, described outer ring is provided with the bolt for being fixed on the rear wheel of car, described outer ring is in circle column piece, and described inner ring is wear-resisting bearing steel part.Preparation method is carried out according to the following steps：Outer ring makes, inner ring makes, assembling：Demagnetize first and clean, then with clearance：Match somebody with somebody clearance on special equipment, finished product clearance value is controlled in 0.002 0.020mm；Must first be combined before sealing ring assembling, while lip precoats a small amount of grease；Oil, the 10g of greasing amount 7 are poured on oiling machine；Pressure seal ring, prevents grease from spilling outside water and enters；Face pressure bolt on outer ring, it is desirable to which bolt is close to flange face；Last antirust, when mounted, the total amount of grease will account for the 50% of the gap of bearing.
Description
Technical field
The present invention relates to hub, mainly a kind of integrated low-noise automobile hub-bearing unit and its preparation side
Method.
Background technology
With the continuous rising of Global Auto market demand, automobile steering system demand is also increasingly to rise, and I am public
Take charge of in the properties of product design and quality of design and meet the requirement of client, product quality is higher than domestic like product, in quality
Certain advantage is account for, economic benefit and social benefit are considerable.With developing rapidly for market economy, current car is in
State has begun to enter huge numbers of families, including Nissan (NISSAN), A Meila II (ALMER II) automobile etc..
The product is mainly used in by company technique personnel independent research integration low-noise automobile hub-bearing unit
On the wheel hubs of car such as Nissan, A Meila II, its Main Function is that vehicle realizes smooth rotation in the process of moving, keeps vehicle
Brake and brake and be sensitive.Consumption of the current 43200-BM400 hubs in the whole world is 620,000/year, and the automobile such as Nissan is in
The stable development in state market, is badly in need of the production domesticization of correlated parts, and actively pushes forward globalized purchase strategy, and my company is in master at present
Under the support energetically of the supporting producer of machine, the product successfully realizes production domesticization, and domestic demand amount is not less than 150,000/year, and progressively
American-European some factory applications, market prospects are very wide.
Therefore, market survey, specified Dynamic And Static Loads are goed deep into integrated low-noise automobile hub-bearing unit by company：Cr：
41.30KN, Cor33.60KN, solve the bottleneck problem of its large-scale promotion application by technological innovation, thus research have compared with
Low manufacturing cost, and with stable specified Dynamic And Static Loads, low noise, integration, good wearability, long lifespan and install simple etc.
Feature.
The content of the invention
It is an object of the invention to overcome the shortcomings of that prior art is present, and provide a kind of integrated low-noise automobile wheel hub
Bearing unit and preparation method thereof.Under suitable for operating mode mal-condition, and stable specified Dynamic And Static Loads, technology content
Height, compact conformation is not easy to wear, is hardly damaged, a kind of integrated low-noise automobile of HI high impact resistance to vibration and high performance-price ratio
Hub-bearing unit and preparation method thereof.
The purpose of the present invention is completed by following technical solution.This integrated low-noise automobile hub bearing list
Unit, including outer ring, seal assembly, steel ball, inner ring, retainer and bolt, the inside of described outer ring are provided with seal assembly, steel ball
And retainer, described outer ring is provided with the bolt for being fixed on the rear wheel of car, and described outer ring is in circle column piece, institute
The inner ring stated is wear-resisting bearing steel part.
The preparation method of this integrated low-noise automobile hub-bearing unit of the present invention, enters according to the following steps
OK：
(1), outer ring makes：Product blank passes through forging molding, from carbon constructional quality steel 55#, by what is designed
Mould is forged；After normalizing, into numerically controlled lathe rough turn processing on request, the integrated double channel of integral type；Improved by ball blast
The finish of forging plane, smart car end endoporus long, smart car double channel Internal periphery, raceway groove quenching, quenching effective depth is 1.5-
3.0mm, enters back into tempering, it is ensured that double channel temper number HRC60-64, it is ensured that raceway groove is wear-resisting；Smart car counterface, in number
Smart car abutting end on lathe is controlled, then being positioned by drill jig drill and chamfering, face grinding and external diameter, predominantly follow-up mill adds
Work support is used, and roughness reaches Ra0.8, is ground raceway groove and is shaped, and roughness reaches Ra0.4, and superfinishing raceway groove, roughness reaches
Ra0.1, last smart car seals bore to cooperation desired size；
(2), seal assembly：Material uses 10#+ Black Butyronitrile-rubbers, for anti-external water to be into Bearing inner and prevents
The outside seepage of internal grease；
(3), steel ball：Material is beating steel GCr15, plays rolling action；
(4), inner ring makes：First die forging, forging processing is carried out with beating steel GCr15 material；Spheroidizing, is easy to follow-up car
Processing；Subsequent machining technology surplus is reserved during Vehicle Processing；Integral quenching, tempering, hardness reach HRC60-65, it is ensured that product has
Sufficiently wear-resistant property；Mill Double End, as subsequent reference, roughness Ra 0.63；Mill external diameter is propped up to the requirement of drawing standard for follow-up
Support, while being also sealing ring fit dimension, roughness Ra 0.8；Grind raceway groove to product requirement size, roughness Ra 0.4；Mill internal diameter
To drawing requirement size, roughness Ra 0.63；Superfinishing raceway groove ensures roughness Ra 0.1；
(5), retainer：With the glass fiber material of nylon66 fiber+25%, for separating steel ball, steel ball is prevented in operation process
In mutually collide, reduce resistance；
(6), bolt：Bolt material is 35CrMo, and four bolts are mainly used in outer ring and are fixed on car trailing wheel and brake disc
On；
(7), assemble：Demagnetize first and clean, then with clearance：Match somebody with somebody clearance on special equipment, the control of finished product clearance value exists
0.002-0.020mm；Must first be combined before sealing ring assembling, while lip precoats a small amount of grease；Oil is poured on oiling machine,
Greasing amount 7-10g；Pressure seal ring, prevents grease from spilling outside water and enters；Face pressure bolt on outer ring, it is desirable to which bolt is close to flange
Face；Last antirust, when mounted, the total amount of grease will account for the 50% of the gap of bearing；
(8), inspection eventually：Required according to product drawing, product physical property and physical dimension are tested；
(9), pack：According to customer requirement or enterprise product packing instructions, packed.
Beneficial effects of the present invention are：
1st, traditional automobile hub bearing, in actual applications, it has the disadvantage easy to wear, and waste of raw materials is serious.
And we use that product structure is relatively easy, integrated and wearability is good.
2nd, with larger bearing capacity, product is formed by special process fabrication design, product stable mechanical performance.According to
Products characteristics and customer's particular/special requirement, company have designed and produced a series of special gauge to realize processing site quick detection,
As symmetry is detected with cylindricity, research of technique group has made special measurement dial framework, it is ensured that each product key performance chi
Very little Meet Customer Requirements all the time.
3rd, product blank is machined out by forging molding by drawing technical requirements.Product technology content is high, and structure is tight
Gather, raceway groove is microstoning after mill processing, and roughness reaches Ra0.1, it is poor to change original raceway groove roughness, easy to be wear-resisting, is difficult
Damage, Water-proof and oil-proof fat can run under severe conditions.
4th, engineering plastics cage is wear-resisting, and resistance is again small.
5th, the undressed appearance of forging is originally black, in order that goodlooking, it is necessary to throw a watt treatment.
6th, superfinishing again after grinding, it is ensured that roughness and reduce noise.
Therefore, a kind of integrated low-noise automobile hub-bearing unit of the invention and preparation method thereof, with structure letter
List, lighter quality, high specific strength, the specified Dynamic And Static Loads of stabilization, wearability and security.
Brief description of the drawings
Fig. 1 is structure schematic front view of the invention.
Fig. 2 is structure schematic side view of the invention.
Description of symbols：Outer ring 1, seal assembly 2, steel ball 3, inner ring 4, retainer 5, bolt 6.
Specific embodiment
Detailed introduction is done to the present invention below in conjunction with accompanying drawing：
As illustrated, this integrated low-noise automobile hub-bearing unit, including outer ring 1, seal assembly 2, steel ball 3,
Inner ring 4, retainer 5 and bolt 6, the inside of described outer ring 1 are provided with seal assembly 2, steel ball 3 and retainer 5, described outer ring
1 is provided with the bolt 6 for being fixed on the rear wheel of car, and described outer ring 1 is in circle column piece, and described inner ring 4 is wear-resisting
Bearing steel part.
A kind of preparation method of integrated low-noise automobile hub-bearing unit, is carried out according to the following steps：
(1) material
Outer ring：Carbon constructional quality steel 55#, inner ring：Beating steel GCr15, retainer：The glass fibre of nylon66 fiber+25%, it is close
Sealing assembly：10+ Black Butyronitrile-rubbers, steel ball：GCr15, bolt：35CrMo
(2) seal assembly
Outsourcing piece, material uses 10#+ Black Butyronitrile-rubbers.It is mainly used in waterproof and prevents grease seepage.
(3) steel ball
Outsourcing piece, material is beating steel GCr15, plays rolling action, advantage：Rolling frictional resistance is small.
(4) outer ring makes
Forging → normalizing → rough turn → smart car double channel, Internal periphery → quench, be tempered → smart car abutting end → drilling, counterbore,
Chamfering → mill external diameter → mill double channel, sealing bore → superfinishing double channel
Product blank by forging molding, from 55# carbon constructional quality steels, by being forged in the mould that designs
Make.After normalizing, into numerically controlled lathe rough turn processing on request, the integrated double channel of integral type；The thick of forging plane is improved by ball blast
Rugosity, smart car double channel, Internal periphery, raceway groove quenching, quenching effective depth is 1.5-3.0mm, enters back into tempering, it is ensured that double channel
Temper number HRC60-64, it is ensured that raceway groove is sufficiently wear-resistant.Smart car counterface, the smart car abutting end on numerically controlled lathe, then
Positioned by drill jig drilled, counterbore and chamfering, grind external diameter, predominantly follow-up mill process support is used, and roughness reaches
Ra0.8, grinds raceway groove, and shapes, and roughness reaches Ra0.4, and superfinishing raceway groove, roughness reaches Ra0.1, last hard car sealing bore
To standard desired size.
(5) inner ring makes
Forging → spheroidizing → Vehicle Processing → quench, it is tempered → grinds Double End → mill external diameter → mill raceway groove → mill internal diameter → super
Smart raceway groove
Die forging is carried out by beating steel GCr15 material；Spheroidizing, is easy to follow-up Vehicle Processing；To be reserved during Vehicle Processing
Subsequent machining technology surplus；Integral quenching, tempering, hardness reach HRC60-65, it is ensured that the resistance to enough mills of product；Mill Double End, makees
It is subsequent reference, roughness Ra 0.63；Mill external diameter is supported, while the size is also sealing ring matching somebody with somebody to desired size for follow-up
Close size, roughness Ra 0.8；Grind raceway groove to desired size, roughness Ra 0.4；Grind internal diameter to desired size, roughness
Ra0.63；Superfinishing raceway groove ensures roughness Ra 0.1.
(6) retainer
The retainer glass fiber material of nylon66 fiber+25%, relatively engineering plastics cage, wear-resisting, its main standoff steel
Ball, prevents from mutually being collided in steel ball operation process, reduces resistance.
(7) bolt
Outsourcing piece, bolt material is 35CrMo, and four bolts are mainly used in outer ring and are fixed on after car on wheel.
(8) assemble
Demagnetization, cleaning → press bolt → antirust → bag with clearance → oiling → densification sealing assembly → flange face typewriting → outer ring
Dress
Demagnetize first and clean, then with clearance：Match somebody with somebody clearance on special equipment, finished product clearance value is controlled in 0.002-
0.020mm；Before sealing ring assembling, lip precoats a small amount of grease；Oil, greasing amount 7-10g are poured on oiling machine；Pressure seal ring,
Prevent grease from leaking outside, while being also prevented from outside water entrance；Typewrited on the flange face of outer ring by customer requirement, face pressure spiral shell on outer ring
Bolt, it is desirable to which bolt is close to flange face, and bolt is using the 10.9 grade high-strength technical property requirements for meeting GB/T3098.1 standards；Most
Antirust afterwards, product antirust reaches non-corroding, the immaculate requirement that client specifies.When mounted, the total amount of grease will account for bearing
Gap 50%, the other technologies performance of product meets JB/T10238-2001《Automobile hub bearing》Regulation.
(9) inspection eventually
Required according to product drawing, product physical property and physical dimension are tested.
(10) pack
According to customer requirement or enterprise product packing instructions, packed.
(11) be put in storage
The attached quality certification of qualified products handles storage.
Embodiment 1：A kind of automobile hub bearing, including outer ring, inner ring, retainer, seal assembly, steel ball and spiral shell
Bolt, described outer ring is provided with counterbore, and is fixed with bolt, is also fastened on rear wheel brake disk, and described internal layer is have in 2
Circle, 2 retainers, 1 seal assembly, outer ring are staged cylindrical shape.
A kind of preparation method of integrated low-noise automobile hub-bearing unit, in following processing steps：
(1), outer ring makes
Product blank, from carbon constructional quality steel 55#, is forged by forging molding by the mould for designing.
After normalizing, into numerically controlled lathe rough turn processing on request, the integrated double channel of integral type；The bright and clean of forging plane is improved by ball blast
Degree, smart car end endoporus long, smart car double channel Internal periphery, raceway groove quenching, the effective depth that for example quenches is 1.5-2.8mm, is entered back into
Tempering, such as double channel temper number HRC60-63, it is ensured that raceway groove is wear-resisting.Smart car counterface, the smart car on numerically controlled lathe
Abutting end, then being positioned by drill jig drill and chamfering, face grinding and external diameter, and predominantly follow-up mill process support is used, slightly
Rugosity reaches Ra0.8, grinds raceway groove and shapes, and roughness reaches Ra0.4, superfinishing raceway groove, and roughness reaches Ra0.1, last smart car
Seal bore to cooperation desired size.
(4) seal assembly
Outsourcing piece, material uses 10#+ Black Butyronitrile-rubbers.It is mainly used in anti-external water into Bearing inner and prevents interior
The outside seepage of portion's grease.
(5) steel ball
Material is beating steel GCr15, plays rolling action.Advantage：Rolling frictional resistance is small.
(4) inner ring makes
First die forging, forging processing is carried out with beating steel GCr15 material；Spheroidizing, is easy to follow-up Vehicle Processing；During Vehicle Processing
Reserve subsequent machining technology surplus；Integral quenching, tempering, such as hardness reach HRC60-62, it is ensured that product has sufficiently wear-resistant
Property；Mill Double End, as subsequent reference, roughness Ra 0.63；Mill external diameter is supported to the requirement of drawing standard for follow-up, while
It is also sealing ring fit dimension, roughness Ra 0.8；Grind raceway groove to product requirement size, roughness Ra 0.4；Grind internal diameter to drawing
Desired size, roughness Ra 0.63；Superfinishing raceway groove ensures roughness Ra 0.1.
(5) retainer
The retainer glass fiber material of nylon66 fiber+25%, relatively engineering plastics cage, wear-resisting, its main standoff steel
Ball, prevents steel ball from mutually being collided in operation process, reduces resistance.
(6) bolt
Outsourcing piece, bolt material is 35CrMo, and four bolts are mainly used in outer ring and are fixed on car trailing wheel and brake disc.
(7) assemble：
Demagnetize first and clean, then with clearance：Match somebody with somebody clearance on special equipment, such as finished product clearance value control is in 0.003-
0.015mm；Must first be combined before sealing ring assembling, while lip precoats a small amount of grease；Oil, greasing amount are poured on oiling machine
7-10g；Pressure seal ring, prevents grease from spilling outside water and enters；Typewrited on outer ring by customer requirement.Face pressure bolt on outer ring,
It is required that bolt is close to flange face, bolt is using the 10.9 grade high-strength technical property requirements for meeting GB/T3098.1 standards；Finally
Antirust, product antirust reaches non-corroding, the immaculate requirement that client specifies.When mounted, the total amount of grease will account for bearing
The 50% of gap, the other technologies performance of product meets JB/T10238-2001《Automobile hub bearing》Regulation.
(8) inspection eventually
Required according to product drawing, product physical property and physical dimension are tested.
(9) pack
According to customer requirement or enterprise product packing instructions, packed.
(10) be put in storage：
The attached quality certification of qualified products handles storage.
Embodiment 2：A kind of automobile hub bearing, including outer ring, inner ring, retainer, seal assembly, steel ball and spiral shell
Bolt, described outer ring is provided with counterbore, and is fixed with bolt, is also fastened on rear wheel brake disk, and described internal layer is have in 2
Circle, 2 retainers, 1 seal assembly, outer ring are staged cylindrical shape.
A kind of preparation method of integrated low-noise automobile hub-bearing unit, in following processing steps：
(1), outer ring makes
Product blank, from carbon constructional quality steel 55#, is forged by forging molding by the mould for designing.
After normalizing, into numerically controlled lathe rough turn processing on request, the integrated double channel of integral type；The bright and clean of forging plane is improved by ball blast
Degree, smart car end endoporus long, smart car double channel Internal periphery, raceway groove quenching, the effective depth that for example quenches is 1.2-3.0mm, is entered back into
Tempering, such as double channel temper number HRC58-62, it is ensured that raceway groove is wear-resisting.Smart car counterface, the smart car on numerically controlled lathe
Abutting end, then being positioned by drill jig drill and chamfering, face grinding and external diameter, and predominantly follow-up mill process support is used, slightly
Rugosity reaches Ra0.8, grinds raceway groove and shapes, and roughness reaches Ra0.4, superfinishing raceway groove, and roughness reaches Ra0.2, last smart car
Seal bore to cooperation desired size.
(6) seal assembly
Outsourcing piece, material uses 10#+ Black Butyronitrile-rubbers.It is mainly used in anti-external water into Bearing inner and prevents interior
The outside seepage of portion's grease.
(7) steel ball
Material is beating steel GCr15, plays rolling action.Advantage：Rolling frictional resistance is small.
(4) inner ring makes
First die forging, forging processing is carried out with beating steel GCr15 material；Spheroidizing, is easy to follow-up Vehicle Processing；During Vehicle Processing
Reserve subsequent machining technology surplus；Integral quenching, tempering, such as hardness reach HRC58-62, it is ensured that product has sufficiently wear-resistant
Property；Mill Double End, as subsequent reference, roughness Ra 0.63；Mill external diameter is supported to the requirement of drawing standard for follow-up, while
It is also sealing ring fit dimension, roughness Ra 0.8；Grind raceway groove to product requirement size, roughness Ra 0.4；Grind internal diameter to drawing
Desired size, roughness Ra 0.63；Superfinishing raceway groove ensures roughness Ra 0.1.
(5) retainer
The retainer glass fiber material of nylon66 fiber+25%, relatively engineering plastics cage, wear-resisting, its main standoff steel
Ball, prevents steel ball from mutually being collided in operation process, reduces resistance.
(6) bolt
Outsourcing piece, bolt material is 35CrMo, and four bolts are mainly used in outer ring and are fixed on car trailing wheel and brake disc.
(7) assemble：
Demagnetize first and clean, then with clearance：Match somebody with somebody clearance on special equipment, such as finished product clearance value control is in 0.002-
0.012mm；Must first be combined before sealing ring assembling, while lip precoats a small amount of grease；Oil, greasing amount are poured on oiling machine
7-10g；Pressure seal ring, prevents grease from spilling outside water and enters；Typewrited on outer ring by customer requirement.Face pressure bolt on outer ring,
It is required that bolt is close to flange face, bolt is using the 10.9 grade high-strength technical property requirements for meeting GB/T3098.1 standards；Finally
Antirust, product antirust reaches non-corroding, the immaculate requirement that client specifies.When mounted, the total amount of grease will account for bearing
The 50% of gap, the other technologies performance of product meets JB/T10238-2001《Automobile hub bearing》Regulation.
(8) inspection eventually
Required according to product drawing, product physical property and physical dimension are tested.
(9) pack
According to customer requirement or enterprise product packing instructions, packed.
(10) be put in storage：
The attached quality certification of qualified products handles storage.
Embodiment 3：A kind of automobile hub bearing, including outer ring, inner ring, retainer, seal assembly, steel ball and spiral shell
Bolt, described outer ring is provided with counterbore, and is fixed with bolt, is also fastened on rear wheel brake disk, and described internal layer is have in 2
Circle, 2 retainers, 1 seal assembly, outer ring are staged cylindrical shape.
A kind of preparation method of integrated low-noise automobile hub-bearing unit, in following processing steps：
(1) outer ring makes
Product blank, from carbon constructional quality steel 55#, is forged by forging molding by the mould for designing.
After normalizing, into numerically controlled lathe rough turn processing on request, the integrated double channel of integral type；The bright and clean of forging plane is improved by ball blast
Degree, smart car end endoporus long, smart car double channel Internal periphery, raceway groove quenching, the effective depth that for example quenches is 1.6-2.8mm, is entered back into
Tempering, such as double channel temper number HRC62-65, it is ensured that raceway groove is wear-resisting.Smart car counterface, the smart car on numerically controlled lathe
Abutting end, then being positioned by drill jig drill and chamfering, face grinding and external diameter, and predominantly follow-up mill process support is used, slightly
Rugosity reaches Ra0.8, grinds raceway groove and shapes, and roughness reaches Ra0.4, superfinishing raceway groove, and roughness reaches Ra0.1, last smart car
Seal bore to cooperation desired size.
(2) seal assembly
Outsourcing piece, material uses 10#+ Black Butyronitrile-rubbers.It is mainly used in anti-external water into Bearing inner and prevents interior
The outside seepage of portion's grease.
(3) steel ball
Material is beating steel GCr15, plays rolling action.Advantage：Rolling frictional resistance is small.
(4) inner ring makes
First die forging, forging processing is carried out with beating steel GCr15 material；Spheroidizing, is easy to follow-up Vehicle Processing；During Vehicle Processing
Reserve subsequent machining technology surplus；Integral quenching, tempering, hardness reach HRC60-65, it is ensured that product has sufficiently wear-resistant property；Mill
Double End, as subsequent reference, roughness Ra 0.63；Mill external diameter is supported, while being also close to the requirement of drawing standard for follow-up
Seal fit dimension, roughness Ra 0.8；Grind raceway groove to product requirement size, roughness Ra 0.4；Grind internal diameter to drawing requirement chi
It is very little, roughness Ra 0.63；Superfinishing raceway groove ensures roughness Ra 0.1.
(5) retainer
The retainer glass fiber material of nylon66 fiber+25%, relatively engineering plastics cage, wear-resisting, its main standoff steel
Ball, prevents steel ball from mutually being collided in operation process, reduces resistance.
(6) bolt
Outsourcing piece, bolt material is 35CrMo, and four bolts are mainly used in outer ring and are fixed on car trailing wheel and brake disc.
(7) assemble：
Demagnetize first and clean, then with clearance：Match somebody with somebody clearance on special equipment, such as finished product clearance value control is in 0.002-
0.018mm；Must first be combined before sealing ring assembling, while lip precoats a small amount of grease；Oil, greasing amount are poured on oiling machine
7-10g；Pressure seal ring, prevents grease from spilling outside water and enters；Typewrited on outer ring by customer requirement.Face pressure bolt on outer ring,
It is required that bolt is close to flange face, bolt is using the 10.9 grade high-strength technical property requirements for meeting GB/T3098.1 standards；Finally
Antirust, product antirust reaches non-corroding, the immaculate requirement that client specifies.When mounted, the total amount of grease will account for bearing
The 50% of gap, the other technologies performance of product meets JB/T10238-2001《Automobile hub bearing》Regulation.
(8) inspection eventually
Required according to product drawing, product physical property and physical dimension are tested.
(9) pack
According to customer requirement or enterprise product packing instructions, packed.
(10) be put in storage：
The attached quality certification of qualified products handles storage.
It is understood that it will be understood by those skilled in the art that being subject to technical scheme and inventive concept
The protection domain of appended claims of the invention should all be belonged to replacement or change.
Claims (2)
1. a kind of integrated low-noise automobile hub-bearing unit, it is characterised in that：Including outer ring (1), seal assembly (2), steel
Ball (3), inner ring (4), retainer (5) and bolt (6), the inside of described outer ring (1) be provided with seal assembly (2), steel ball (3) and
Retainer (5), described outer ring (1) is provided with the bolt (6) for being fixed on the rear wheel of car, and described outer ring (1) is in
Circle column piece, described inner ring (4) is wear-resisting bearing steel part.
2. a kind of preparation method of integrated low-noise automobile hub-bearing unit according to claim 1, its feature exists
Carried out according to the following steps：
(1), outer ring makes：Product blank passes through forging molding, from carbon constructional quality steel 55#, by the mould for designing
Forged；After normalizing, into numerically controlled lathe rough turn processing on request, the integrated double channel of integral type；Improved by ball blast and forged
The finish in face, smart car end endoporus long, smart car double channel Internal periphery, raceway groove quenching, quenching effective depth is 1.5-3.0mm, then
Into tempering, it is ensured that double channel temper number HRC60-64, it is ensured that raceway groove is wear-resisting；Smart car counterface, on numerically controlled lathe
Smart car abutting end, then being positioned by drill jig drill and chamfering, face grinding and external diameter, predominantly follow-up mill process support
With roughness reaches Ra0.8, grinds raceway groove and shapes, and roughness reaches Ra0.4, and superfinishing raceway groove, roughness reaches Ra0.1, finally
Smart car seals bore to cooperation desired size；
(2), seal assembly：Material uses 10#+ Black Butyronitrile-rubbers, for anti-external water to be into Bearing inner and prevents inside
The outside seepage of grease；
(3), steel ball：Material is beating steel GCr15, plays rolling action；
(4), inner ring makes：First die forging, forging processing is carried out with beating steel GCr15 material；Spheroidizing, is easy to follow-up car to add
Work；Subsequent machining technology surplus is reserved during Vehicle Processing；Integral quenching, tempering, hardness reach HRC60-65, it is ensured that product has foot
Enough wearabilities；Mill Double End, as subsequent reference, roughness Ra 0.63；Mill external diameter is propped up to the requirement of drawing standard for follow-up
Support, while being also sealing ring fit dimension, roughness Ra 0.8；Grind raceway groove to product requirement size, roughness Ra 0.4；Mill internal diameter
To drawing requirement size, roughness Ra 0.63；Superfinishing raceway groove ensures roughness Ra 0.1；
(5), retainer：With the glass fiber material of nylon66 fiber+25%, for separating steel ball, steel ball phase in operation process is prevented
Mutually collision, reduces resistance；
(6), bolt：Bolt material is 35CrMo, and four bolts are mainly used in outer ring and are fixed on car trailing wheel and brake disc；
(7), assemble：Demagnetize first and clean, then with clearance：Match somebody with somebody clearance on special equipment, the control of finished product clearance value exists
0.002-0.020mm；Must first be combined before sealing ring assembling, while lip precoats a small amount of grease；Oil is poured on oiling machine,
Greasing amount 7-10g；Pressure seal ring, prevents grease from spilling outside water and enters；Face pressure bolt on outer ring, it is desirable to which bolt is close to flange
Face；Last antirust, when mounted, the total amount of grease will account for the 50% of the gap of bearing；
(8), inspection eventually：Required according to product drawing, product physical property and physical dimension are tested；
(9), pack：According to customer requirement or enterprise product packing instructions, packed.
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| CN108857274A (en) * | 2018-06-14 | 2018-11-23 | 杭州力亿轴承有限公司 | Double channel emery wheel grinds processing method |
| CN109483180A (en) * | 2019-01-08 | 2019-03-19 | 湖北新火炬科技有限公司 | A kind of hub bearing spline processing technology |
| CN110009169A (en) * | 2018-01-05 | 2019-07-12 | 陕西思富德宝汽车零部件制造有限责任公司 | A kind of management service method and management system for automobile axial workpiece production information |
| CN110185710A (en) * | 2019-05-20 | 2019-08-30 | 杭州雷迪克节能科技股份有限公司 | The research of hub-bearing unit clearance control method |
| CN111347178A (en) * | 2020-05-13 | 2020-06-30 | 常州奥旋重型轴承有限公司 | Integral bearing with bottom plate for laser cutting equipment |
| CN112024799A (en) * | 2020-08-27 | 2020-12-04 | 成都阿泰克特种石墨有限公司 | Automobile electronic water pump bearing machining method |
| CN112975292A (en) * | 2021-03-01 | 2021-06-18 | 杭州沃德汽车部件制造有限公司 | Hub unit machining process for integrated grinding |
| CN113738765A (en) * | 2021-08-24 | 2021-12-03 | 浙江万鼎精密科技股份有限公司 | Groove and raceway combined ABS pick up hub bearing outer ring and processing method thereof |
| CN113894499A (en) * | 2021-09-29 | 2022-01-07 | 浙江硕业轴承有限公司 | Novel hub bearing production equipment and process thereof |
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| CN111347178A (en) * | 2020-05-13 | 2020-06-30 | 常州奥旋重型轴承有限公司 | Integral bearing with bottom plate for laser cutting equipment |
| CN112024799A (en) * | 2020-08-27 | 2020-12-04 | 成都阿泰克特种石墨有限公司 | Automobile electronic water pump bearing machining method |
| CN112975292A (en) * | 2021-03-01 | 2021-06-18 | 杭州沃德汽车部件制造有限公司 | Hub unit machining process for integrated grinding |
| CN113738765A (en) * | 2021-08-24 | 2021-12-03 | 浙江万鼎精密科技股份有限公司 | Groove and raceway combined ABS pick up hub bearing outer ring and processing method thereof |
| CN113894499A (en) * | 2021-09-29 | 2022-01-07 | 浙江硕业轴承有限公司 | Novel hub bearing production equipment and process thereof |
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