CN109455259A - Rear wheel drive vehicle with good rear effectiveness in vibration suppression - Google Patents

Rear wheel drive vehicle with good rear effectiveness in vibration suppression Download PDF

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Publication number
CN109455259A
CN109455259A CN201811166252.6A CN201811166252A CN109455259A CN 109455259 A CN109455259 A CN 109455259A CN 201811166252 A CN201811166252 A CN 201811166252A CN 109455259 A CN109455259 A CN 109455259A
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CN
China
Prior art keywords
connection
rear arm
principal axis
vehicle body
composite material
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Pending
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CN201811166252.6A
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Chinese (zh)
Inventor
李鑫
崔月明
其他发明人请求不公开姓名
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Beijing Long New Material Technology Development Co Ltd
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Beijing Long New Material Technology Development Co Ltd
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Priority to CN201811166252.6A priority Critical patent/CN109455259A/en
Publication of CN109455259A publication Critical patent/CN109455259A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K25/00—Axle suspensions
    • B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • 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
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/022—Ethene
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/024—Propene
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/16—Paraffin waxes; Petrolatum, e.g. slack wax
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/017—Specific gravity or density
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/04—Molecular weight; Molecular weight distribution
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

Rear wheel drive vehicle is to reach good rear effectiveness in vibration suppression, connection between rear arm and main vehicle body frames, connection between rear arm and rear vibration damping, it is flexible that connection between rear shock absorber and main vehicle body frames is all made of rotation, the cylindrical type hinge assembly of sealing and dustproof: it is coated with the connection principal axis A of oil contained self lubrication composite material clad F, the part B of smooth inner bore, its end face is inlaid with dynamic sealing material, limiting bush uses the polytetrafluorethylecoatings coatings of low-friction coefficient, the dynamic sealing material of two end faces part B and the coating of limiting bush constitute sliding friction antithesis, it realizes end face dynamic sealing and part B can be guaranteed around principal axis A flexible rotating；Composite material clad F other than playing self-lubricating function, buffer function can also be played, plastic deformation can be played when being impacted, overflow grease, increase forced area and reduce local pressure, prevent severe impact of the part in vehicle acceleration and deceleration, reduce vibration and noise.

Description

Rear wheel drive vehicle with good rear effectiveness in vibration suppression
Technical field
The invention belongs to two-wheeled or reverse three-wheeled vehicle field, including electric bicycle, electric light motorcycles, electric motorcycle Vehicle, fuel motorcycle, these vehicles generally use rear wheel drive, and vehicle mainly includes the turning machines such as front-wheel, preceding damper, handlebar Structure, main vehicle body, rear arm, rear shock absorber, rear-wheel and its driving mechanism.
Background technique
Have many advantages, such as light, energy-saving and environmental protection, at low cost using the above-mentioned vehicle of rear wheel drive, and obtains extensively Using according to market survey, the existing two-wheel electric vehicle of China is 300,000,000 nearly, three-wheeled electric vehicle is 30,000,000 nearly, fuel motorcycle Ownership nearly 60,000,000, the sulky vehicle and front two independent wheel, latter one of traditional above-mentioned rear wheel drive Wheel, the reverse three-wheeled vehicle using rear wheel drive equip the scheme of rear shock absorber to prevent from jolting, generally use on rear arm, As shown in Figure of description 1, rear arm 3 and the main vehicle body 5 of front be connected by hinged place 4, conventional symmetric cloth on rear arm Two rear shock absorbers 8 are set, the top of rear shock absorber 8 and main vehicle body 6 are connected to hinged place 7, and rear arm 3 is connected with rear-wheel 1 In hinged place 2；For rear-wheel when encountering barrier or Uneven road is smooth, rear-wheel will drive rear arm around rear arm and main vehicle body Hinged place 4 and swing, rear arm drive rear shock absorber piston rod elongation or compression, guarantee the high stability of main vehicle body as far as possible With driving comfort level.This ideal design encounters many problems in practical application, so that effectiveness in vibration suppression is very poor, drives and relaxes Appropriateness is very poor.
Such as the hinged schematic diagram of routine rear arm and front of the car shown in Figure of description 7, connection bolt main shaft 1 is with after Biggish gap is maintained between the inner hole of rocker arm 7, also keeps larger between the end face of rear arm and the connection ear 2 of front of the car Gap, in this way manufacture and assembly cost it is very low, but vehicle launch, acceleration or brake, slow down when, the metal zero of hinged place Can be because impact lead to abnormal sound, noise between part, in addition above-mentioned gap location is easy to be mixed into the foreign matters such as silt or because metal is raw It becomes rusty and becomes rusty extremely, lead to the hinged place of rear arm and main vehicle body rotation failure, when such rear-wheel encounters barrier or pavement roughness, Main vehicle body can be directly resulted in passively to lift and fall, rear shock absorber does not have damping effect at all.
In addition there is also some problems, such as Figure of description for routinely rear shock absorber and rear arm and main vehicle body hinged Shown in 9, the hinged place on the top and main vehicle body of the lower part of rear shock absorber and the hinged place of rear arm and rear shock absorber is equally deposited In larger gap, the foreign matters such as silt are easy to be stuck in gap location or since it is desired that corroding at the friction pair of rotation causes hinged place to turn Dynamic failure, rear shock absorber cannot follow with the fluctuating of rear arm and naturally and adjust positional relationship, will lead to and directly drive main vehicle Bottom offset, effectiveness in vibration suppression are deteriorated with it；Even if in addition hinged place does not have stuck, the vibration that hinged place metal impacts mutually can also occur Dynamic and noise.To avoid this problem, comparison background technique --- Figure of description 11 is proposed in damper 1 and rear arm or main vehicle The hinged place of body using rubber bushing 3 and 9 sealing, dust-proof, protecting against shock, but rubber bushing by gasket 4 and 10 through bolt main shaft 6 Lowering the curtain with fastening, the quiet frictional force in interface after 5 compressions is very big, and damper 1 cannot effectively be rotated around the bolt main shaft 6 of hinged place, because This cannot follow adjustment positional relationship, effectiveness in vibration suppression bad with the fluctuating of rear arm and naturally.
For the reality technology defect for overcoming the prior art and product, the present invention is specifically proposed.
Summary of the invention
Rear wheel drive vehicle of the invention mainly include front-wheel, preceding damper, steering mechanism, main vehicle body frames, rear arm, It is connected to the rear shock absorber above main vehicle body frames and rear arm, the rear-wheel on rear arm and its driving mechanism, to reach Effectiveness in vibration suppression after good, the Lower mounting hole of connection, rear arm and rear shock absorber between rear arm and main vehicle body frames it Between connection and rear shock absorber upper mounting holes and main vehicle body frames between connection be all made of rotation flexibly, sealing it is anti- The cylindrical type hinge assembly of dirt, the cylindrical type hinge assembly technical characteristics include: that outer circle is coated with protecting against shock, oil-containing profit certainly The connection principal axis A of sliding composite material clad F, with connect between principal axis A can rotate relatively freely, zero with smooth inner bore Two end faces of part B, part B are inlaid with O-shaped rubber seal or polytetrafluoroethylene (PTFE) packing sealing material respectively, with sealing material Pressing contact constitutes dynamic sealing respectively, stitching surface uses the smooth polytetrafluorethylecoatings coatings or lubricious ceramic coating of low-friction coefficient Part C and D, part C and D, which also have, prevents part B along the axis play of connection principal axis A or the limit function of swing；Part B The surface roughness Ra of smooth inner bore be less than or equal to 3.2 microns, the surface roughness Ra of the coating of part C and D is less than or equal to 1.6 micron；The radial clearance between the outer circle of clad F and the smooth inner bore of part B of principal axis A outer circle is connected less than 1 millimeter； Part B when around connection principal axis A rotation, the sealing material of two end faces part B and part C and D stitching surface it is lubricious Move close in the axial pre tightening force realization end face that composition sliding friction antithesis, the two are provided by the fastening nut of connection principal axis A end It seals and can guarantee that part B realizes flexible rotating around connection principal axis A；Connect protecting against shock, the oil-containing of principal axis A excircle part cladding Self-lubricating composite clad F specifically includes that the three-dimensional netted skeleton based on polyolefin, the grease being dispersed therein And graphite of the average grain diameter less than 5 microns or carbon black powder, grease mainly include paraffin oil or dioctyl sebacate or two The composition of person, wherein the weight percent of polyolefin is between 20-50%, and the weight percent of graphite or carbon black powder is between 0- 20%, the weight percent of grease is between 30-80%；Composite material clad F is using aforementioned raw material through 185-220 DEG C of high temperature The outer circle support section for connecting principal axis A is coated on after lower mixing uniformly, again using the injection molding direct microdiecast of extrusion process, it is compound The thickness of material clad F between 2-20 millimeters, composite material clad F other than playing self-lubricating function, can also play Buffer function, when being impacted, composite material clad can play plastic deformation, overflow grease, increase forced area, drop Low local pressure prevents severe impact, reduction vibration and noise of the part A and B when vehicle accelerates, slows down.
It can use aluminium alloy, since aluminum alloy hardness is too low, be not suitable for mitigate light weight, rear arm material of main part It is used as friction pair material, inner circle light can be used with the poroid component for connecting the rear arm that can be relatively rotated between main shaft Sliding steel pipe is as bushing, and steel pipe can directly castingin be fixed on inside aluminium alloy rear arm, and two end faces of steel pipe are in castingin Seal groove is processed respectively in advance long before process, and for the validity for guaranteeing phase vehicle long-life, the steel pipe secondary as friction can be with To inner hole and two end faces before castingin process, carry out the antirust treatments such as chromium plating in advance.
In order to play buffering and antifriction function, the oil contained self lubrication composite material clad of connection main shaft outer circle cladding is used With plastoelastic polyolefine material main body three-dimensional framework material, by using the compatible oil like material paraffin oil of high temperature and the last of the ten Heavenly stems two Dioctyl phthalate is kneaded uniformly at homogeneous thermodynamic solution at 185-220 DEG C of high temperature, and in solidification, polyolefine material can occur Partially crystallizable forms three-dimensional framework shape main body, grease and can be segregated and be distributed in three-dimensional framework, clad composite material by When extruding, oil type liquid can be partly forced out, and can play self-lubricating function when relatively rotating or slide between friction pair； Oil contained self lubrication composite material polyolefine material therein includes that high density polyethylene (HDPE), linear low density polyethylene, low-density are poly- One of ethylene, polypropylene, bibasic ethylene propylene rubber, ethylene-vinyl acetate copolymer or combinations thereof object.Fine graphitic powder Or carbon black materials itself also have boundary lubrication function and properly increase the intensity of polyolefine material, can be suitably incorporated.For more Understand the present invention well, does further explaination and explanation in conjunction with Figure of description.
Detailed description of the invention
Figure of description 1 is conventional rear wheel drive vehicle ground rear structure schematic diagram, and 1 is rear-wheel in figure, and 2 be rear-wheel center The rear shock absorber lower part at place and the hinged place of rear arm, 3 be rear arm, and 4 be the hinged place of rear arm and main vehicle body, and 5 be main vehicle The connection ear that body stretches out, is connected by hinged place 4 with rear arm, and 6 be main vehicle body, and 7 be rear shock absorber top and main vehicle body Hinged place, 8 be rear shock absorber, and diagram dotted line is that ideal design wishes the vibration damping situation reached, and rear-wheel encounters barrier or not When smooth-riding surface, rear-wheel drive rear arm to swing, rear shock absorber 8 should be around its hinge joint rotation and adjust automatically at upper and lower two Positional relationship guarantees the high stability of main vehicle body 6 by the flexible adjustment of shock absorber piston rod.
Figure of description 2 is the structure principle chart of rear of the invention, in figure 1 is rear-wheel in figure, 2 is under rear shock absorbers The hinged place in portion and rear arm is located substantially at the middle position of rear arm length, and such rear arm is excited by rear-wheel should when swinging The oscillating quantity at place can be less than normal, and the position adjustment amplitude of rear shock absorber 8 becomes smaller, and the stroke of piston rod is also reduced, to vibration damping Time is accordingly quicker, and 3 be rear arm in figure, and 4 be the hinged place of rear arm and main vehicle body, 5 connections stretched out for main vehicle body Ear is connected by hinged place 4 with rear arm, and 6 be main vehicle body, and 7 be the hinged place on rear shock absorber top and main vehicle body, and 8 are Rear shock absorber.
Figure of description 3 is the hinged place structure principle chart of the connection ear of rear arm and main vehicle body of the invention, 1 in figure Can be steel or aluminium for rear arm, it is contemplated that body lightening and it is preferred that aluminium, 2 aluminium for connecting ear for main vehicle body close Golden bracket, 3 be the steel bushing of the coating of axially position, and 4 be connection main shaft, and 5 be O-ring or polytetrafluoroethylene (PTFE) packing Static sealing materials, 5-1 are coated side of the steel sleeve member 3 for dynamic sealing, the polytetrafluorethylecoatings coatings using low-friction coefficient Or ceramic coating and it is polished down to best bright finish, 6 are used for the O-ring or polytetrafluoro of dynamic sealing for rear arm lined steel pipe end face Ethylene packing dynamic sealing material, 7 be the lined steel pipe of rear arm, and 8 support the aluminium alloy of lined steel pipe for rear arm, and 9 be main vehicle The connection ear that body stretches out, 10 be the steel bushing of axially position, and 10-1 is the coating that steel sleeve member 10 is used for dynamic sealing Side, using low-friction coefficient polytetrafluorethylecoatings coatings or ceramic coating and be polished down to best bright finish, 11 be gasket, 12,13 Fastening nut is revolved for fastening left or right, 14 be the protecting against shock for connecting main shaft outer circle cladding, oil contained self lubrication composite material cladding Layer, 15 static sealing materials between gasket and steel sleeve member 10,16 are used for the O of dynamic sealing for rear arm lined steel pipe end face Type circle or polytetrafluoroethylene (PTFE) packing dynamic sealing material.
Figure of description 4 is the thin portion structure principle chart of the steel sleeve member 3 in attached drawing 3, and 1 is locating shoulder in figure, and 2 are The polytetrafluorethylecoatings coatings or ceramic coating of low-friction coefficient, 3 be the seal groove positioned for static sealing materials, steel sleeve member 3 are also machined with two rotation stop chain-wales for preventing rotation.
Figure of description 5 is the thin portion structure principle chart of the steel sleeve member 10 in attached drawing 3, and 1 is steel sleeve ontology in figure, 2 be the polytetrafluorethylecoatings coatings or ceramic coating of low-friction coefficient, and 3 be the seal groove positioned for static sealing materials, steel lining External member 10 is also machined with two rotation stop chain-wales for preventing rotation.
Figure of description 6 is the connection main shaft at hinged center, in figure 1 be shank of bolt non-threaded area, 2 is directly are coated on Main shaft support area outer circle has protecting against shock, oil contained self lubrication composite material clad.
Figure of description 7 is the articulated structure schematic diagram of conventional steel rear arm and the main vehicle body of steel, and 1 is hinged in figure The connection main shaft at center, 2, the 4 connection ears stretched for main vehicle body, 3 be main vehicle body, and 5 be fastening nut, and 6 be rear arm Hinged place with inner hole.
Figure of description 8 is the structure principle chart of conventional rear shock absorber, in figure 1 be rear shock absorber top connector, 2 are The connection bolt of rear shock absorber lower part, 3 be the connection bolt on rear shock absorber top, and 4 be fastening nut.
Figure of description 9 is the thin portion structure principle chart for subtracting the hinged place of device and rear arm or main vehicle body after routine, 1 in figure It is gasket for the connection main shaft at hinged center, 2,5,3 component for rear shock absorber for connection, 4 is at rear shock absorber main bodys Outer cylinder, 6 be fastening nut, and 7 be rear arm or main vehicle body, 8 supporting element to have inner hole on rear arm or main vehicle body.
Figure of description 10 is the structure principle chart of conventional rear shock absorber, and 1 is damper assembly picture frame in figure, and 2,3 be hinge The rubber bushing at place is connect, 4 be steel sleeve, and 5 be nut, and 6 be gasket, and 7 be thrust washer, and 8 be gasket.
Figure of description 11 is the detail structure chart of conventional rear shock absorber and rear arm or main vehicle body hinged place, and 1 is in figure The outer cylinder of rear shock absorber main body, 2 be connector, and 3,9 be rubber bushing, and 4,10 be gasket, and 5 be fastening nut, and 6 be hinged center Connection main shaft, 7 be the connection appliance on rear arm or main vehicle body, and 8 be rear arm frame or main body shell.
Figure of description 12 is the detail structure chart of rear shock absorber of the invention and rear arm or main vehicle body hinged place, in figure 1 is the outer cylinder of rear shock absorber main body, and 2 be connector, and 3 be the low-friction coefficient polytetrafluoroethylene (PTFE) of steel bushing dynamic sealing face side Coating or ceramic coating, 4 be axial limiting steel bushing, and 5,9 be the connection appliance on rear arm or main vehicle body, and 6 be hinged The connection main shaft at center, 7,8 revolve fastening nut for fastening left or right, and 10,11 be the O-shaped rubber seal or poly- at dynamic sealing Tetrafluoroethene packing_seal material, 12 for the standby low-friction coefficient polytetrafluorethylecoatings coatings of dynamic sealing wheat flour at bolt head or Ceramic coating.
Figure of description 13 is the detail structure chart of 4 axial limiting steel bushing of part in attached drawing 12, and 1 serves as a contrast for steel in figure Ontology, the 2 low-friction coefficient polytetrafluorethylecoatings coatings or ceramic coating to prepare on steel bushing are covered, steel bushing is machined with two A rotation stop chain-wales for preventing rotation.
Embodiment
Embodiment one, rear arm is hinged with main vehicle body, and the structure preparation of attached drawing 3, connects main shaft outer circle to specifications The protecting against shock of cladding, oil contained self lubrication composite material clad with a thickness of 6 millimeters, clad raw material uses weight average molecular weight The HDPE-20% of 1500000 ultra-high molecular weight polyethylene UHMWPE-10.5% (weight percent) and weight average molecular weight 600,000, Bibasic ethylene propylene rubber EPM-9%, No. 35 paraffin oil WAX-60%, antioxidant 1010-0.5%, through parallel double-screw extruder in 200 DEG C are kneaded cooling manufacture master batch after uniform rear extrusion, and then rheo-die-casting is connecting after master batch 200 DEG C of mixed refining process of injection molding machine The outer circle for connecing main shaft, the outer circle that main shaft is connected before die casting use annular knurl frosting treatment in advance；The steel inner hole 7 of clad and rear arm Between gap be designed as 0.3 millimeter；Static seal and dynamic sealing material are all made of 3 millimeters of line footpath of O-shaped rubber seal, and dynamic The coated side 5-1 and 10-1 for sealing the friction pair of pairing are all made of Te Fulong (polytetrafluoroethylene (PTFE)) coating, and through being polished down to Ra0.4 microns.
Hinged, the structure preparation of attached drawing 12 to specifications of embodiment two, rear shock absorber and rear arm, dynamic sealing material 10,11 it is all made of 3 millimeters of line footpath of O-shaped rubber seal, is all made of with the coated side 12 and 3 of the friction pair of dynamic sealing pairing Te Fulong (polytetrafluoroethylene (PTFE)) coating, and it is polished down to Ra0.4 microns.

Claims (3)

1. have it is good after effectiveness in vibration suppression rear wheel drive vehicle, which is characterized in that the rear wheel drive vehicle mainly include front-wheel, Preceding damper, steering mechanism, main vehicle body frames, rear arm, the rear shock absorber being connected to above main vehicle body frames and rear arm, dress Rear-wheel and its driving mechanism on rear arm, to reach good rear effectiveness in vibration suppression, between rear arm and main vehicle body frames The upper mounting holes and main vehicle body of connection and rear shock absorber between connection, rear arm and the Lower mounting hole of rear shock absorber Connection between vehicle frame, which is all made of, rotates flexible, sealing and dustproof cylindrical type hinge assembly, the main skill of cylindrical type hinge assembly Art feature includes: the connection principal axis A that outer circle is coated with protecting against shock, oil contained self lubrication composite material clad F, and connect principal axis A Between can rotate relatively freely, the part B with smooth inner bore, two end faces of part B are inlaid with O-shaped rubber seal respectively Circle or polytetrafluoroethylene (PTFE) packing press respectively with sealing material as dynamic sealing material and contact composition dynamic sealing, stitching surface uses The smooth polytetrafluorethylecoatings coatings of low-friction coefficient or the part C and D of lubricious ceramic coating, part C and D also have and prevent part B is along the axis play of connection principal axis A or the limit function of swing；The surface roughness Ra of the smooth inner bore of part B is less than or equal to 3.2 microns, the surface roughness Ra of the coating of part C and D is less than or equal to 1.6 microns；Connect the clad F's of principal axis A outer circle Radial clearance between outer circle and the smooth inner bore of part B is less than 1 millimeter；Part B is when around connection principal axis A rotation, part B The lubricious composition sliding friction antithesis of the sealing material and part C of two end faces and D stitching surface, both pass through connection main shaft The axial pre tightening force that the fastening nut of the end A provides realizes end face dynamic sealing and can guarantee that part B is realized around connection principal axis A Flexible rotating；Protecting against shock, the oil contained self lubrication composite material clad F of connection principal axis A excircle part cladding specifically include that polyene The graphite or carbon black of three-dimensional netted skeleton based on hydrocarbon, the grease being dispersed therein and average grain diameter less than 5 microns Powder, grease mainly include the composition of paraffin oil or dioctyl sebacate or both, wherein the weight percent of polyolefin Between 20-50%, the weight percent of graphite or carbon black powder is between 0-20%, and the weight percent of grease is between 30- 80%；Composite material clad F squeezes out work after being kneaded uniformly under 185-220 DEG C of high temperature, again using injection molding using aforementioned raw material The direct microdiecast of skill is coated on the outer circle support section of connection principal axis A, and the thickness of composite material clad F is between 2-20 milli Rice, composite material clad F other than playing self-lubricating function, buffer function can also be played, when being impacted, composite wood Material clad can play plastic deformation, overflow grease, increase forced area, reduce local pressure, prevent part A and B in vehicle Accelerate, slow down when severe impact, reduce vibration and noise.
2. the rear wheel drive vehicle with good rear effectiveness in vibration suppression described in accordance with the claim 1, which is characterized in that rear arm master Body material uses aluminium alloy, the steel smooth using inner circle with the poroid component for connecting the rear arm that can be relatively rotated between main shaft Pipe is as bushing, and steel pipe can directly castingin be fixed on inside aluminium alloy rear arm, and two end faces of steel pipe process respectively in advance There is seal groove.
3. the rear wheel drive vehicle described in accordance with the claim 1 with good vibration damping, which is characterized in that connection main shaft outer circle packet The polyolefin main body three-dimensional framework material of the oil contained self lubrication composite material covered, polyolefine material therein includes high-density polyethylene Alkene, linear low density polyethylene, low density polyethylene (LDPE), polypropylene, bibasic ethylene propylene rubber, in ethylene-vinyl acetate copolymer One kind or combinations thereof object.
CN201811166252.6A 2018-10-11 2018-10-11 Rear wheel drive vehicle with good rear effectiveness in vibration suppression Pending CN109455259A (en)

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Application Number Priority Date Filing Date Title
CN201811166252.6A CN109455259A (en) 2018-10-11 2018-10-11 Rear wheel drive vehicle with good rear effectiveness in vibration suppression

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Application Number Priority Date Filing Date Title
CN201811166252.6A CN109455259A (en) 2018-10-11 2018-10-11 Rear wheel drive vehicle with good rear effectiveness in vibration suppression

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CN109455259A true CN109455259A (en) 2019-03-12

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03292278A (en) * 1990-04-10 1991-12-24 Tokyo R & D:Kk Swing arm for motor-operated scooter
JPH08258778A (en) * 1995-03-23 1996-10-08 Suzuki Motor Corp Dust seal structure of rear wheel suspension device for motorcycle
CN1408963A (en) * 2001-09-26 2003-04-09 株式会社小松制作所 Operation mechanism connector
CN101126418A (en) * 2007-09-11 2008-02-20 嘉兴中达自润轴承工业有限公司 Polymer self-lubricating thin layer composite axle sleeve and its preparation method
CN101700802A (en) * 2009-11-18 2010-05-05 力帆实业(集团)股份有限公司 Motorcycle bottom fork
CN102585406A (en) * 2012-01-06 2012-07-18 广州机械科学研究院有限公司 Microporous oil-containing self-lubricating polytetrafluoroethylene (PTFE) material for sealing and preparation method and application thereof
CN104118515A (en) * 2013-04-26 2014-10-29 铃木株式会社 Swing arm for use in motorcycle
CN105132086A (en) * 2014-05-26 2015-12-09 中国科学院兰州化学物理研究所 Polytetrafluoroethylene bonded solid lubricant

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03292278A (en) * 1990-04-10 1991-12-24 Tokyo R & D:Kk Swing arm for motor-operated scooter
JPH08258778A (en) * 1995-03-23 1996-10-08 Suzuki Motor Corp Dust seal structure of rear wheel suspension device for motorcycle
CN1408963A (en) * 2001-09-26 2003-04-09 株式会社小松制作所 Operation mechanism connector
CN101126418A (en) * 2007-09-11 2008-02-20 嘉兴中达自润轴承工业有限公司 Polymer self-lubricating thin layer composite axle sleeve and its preparation method
CN101700802A (en) * 2009-11-18 2010-05-05 力帆实业(集团)股份有限公司 Motorcycle bottom fork
CN102585406A (en) * 2012-01-06 2012-07-18 广州机械科学研究院有限公司 Microporous oil-containing self-lubricating polytetrafluoroethylene (PTFE) material for sealing and preparation method and application thereof
CN104118515A (en) * 2013-04-26 2014-10-29 铃木株式会社 Swing arm for use in motorcycle
CN105132086A (en) * 2014-05-26 2015-12-09 中国科学院兰州化学物理研究所 Polytetrafluoroethylene bonded solid lubricant

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Application publication date: 20190312