Steel is moulded cardan wheel
Technical field
The present invention relates to a kind of under the big situation of bearing capacity, steel is moulded cardan wheel and is not only had flexible, the characteristics easily of walking of rotating, and the steel that any damage can not take place moulds cardan wheel, is mainly used in charging vehicle charging station and carries battery freight container and other field, belongs to cardan wheel and makes the field.
Background technology
CN200981457Y, title " bearing felt formula heavy lift Universal castor ", the axle sleeve of this wheel carrier is captiveed joint with base plate, universal center shaft lower step section is captiveed joint with loading plate, side plate is captiveed joint with loading plate, radial ball bearing is assemblied on the axle sleeve top, the surface bearing assembly is on universal center shaft and be positioned at the axle sleeve bottom, is provided with snap ring between radial ball bearing and surface bearing, and this snap ring is contained in the axle sleeve middle part.Its weak point: the one, bearing capacity is limited, can't be used for moving of battery freight container; The 2nd, universal bearing bearing surface and its roller be at same axis, and be stressed when big slightly when cardan wheel, not only causes the damage of wheel carrier, and cause the damage of snap ring and bearing inevitably.
Summary of the invention
Design goal: avoid the weak point in the background technology, design a kind of under the big situation of bearing capacity, steel mould cardan wheel not only have rotate flexibly, the characteristics easily of walking, and the steel that any damage can not take place is moulded cardan wheel.
Design plan: in order to realize above-mentioned design goal.1, the tire of cardan wheel is one of technical characterictic of the present invention by the plastics tyre core be wrapped in the design of the metal rim on the plastics tyre core wheel face.The purpose of doing like this is: the casting nylon in the plastics (MC nylon) also claims monomer cast nylon, be to use the caprolactam monomer under the effect of highly basic (as NaoH) and certain cocatalysts, obtain the blank of goods with the direct polymerization forming of mould, because polymerization and forming process are combined, thereby convenient formation, equipment investment is few, not only can make the plastics tyre core easily, and its mechanical property and physical property are all than nylon 6 height, therefore when its metal rim is coincide, the phenomenon that the wheel rim that not only can not take place to cause owing to unlike material separates with the tire core, and can form identical closely.2, steel is moulded the design of the embedded bearing of tire core core wheel, is two of technical characterictic of the present invention.The purpose of doing like this is: because bearing has good load-carrying properties and rollability, particularly under the heavy situation of carrying, it can form the instability carrying by the gravity of institute's load-bearing, therefore can easily make steel mould tyre rotation automatically under the situation of load-bearing.3, wheel carrier is three of a technical characterictic of the present invention by the design of bearing pin and bearing wheel fit.The purpose of doing like this is: because the bearing pin termination is lower than the bearing surface of wheel seat, therefore when wheel seat is stressed, the weight that its wheel seat carried directly acts on the bearing that steel is moulded the tire in-core by wheel carrier and bearing axle, and can not affact on the bearing pin, has guaranteed that bearing pin 360 degree rotate freely; Secondly to several steel balls, several steel balls dynamically alternately are passed to steel with the power of being carried and mould wheel the steel ball in bearing in rolling, force steel to mould the free and relaxed rolling of roller with weight distribution that bearing carried.4, bearing axle is four of a technical characterictic of the present invention by the design of guide and bearing inner ring coupling.The purpose of doing like this is: this guide forces the gravity that is carried to be assigned to whole guide equably, has avoided gravity to concentrate and the damage and the steel of the rotor block that causes are moulded the ineffective phenomenon of tire rolling.5, plastics tyre core both sides have the design of annular groove and build-in dust ring, are five of technical characterictics of the present invention.The purpose of doing like this is: this dust ring endoporus makes the bearing in the plastics tyre core be in sealing state by the positioning cap of wheel carrier and bearing axle end, thereby has avoided dust to enter in the bearing, has guaranteed the alerting ability that bearing rotates.6, being equipped with the design of seal ring in the bearing pin between edge and the wheel carrier, is six of technical characterictic of the present invention.The purpose of doing like this is: the sealing circle can stop dust to enter in the bearing effectively, guarantees that bearing drives wheel seat and rotates in 360 degree scopes.7, during plastics tyre core wheel face is the low arc wheel face in high both sides and with arc wheel face and metal rim in the design that matches of wheel face, be seven of technical characterictic of the present invention.The purpose of doing like this is: it can make wheel face that steel moulds tire with ground-surface the contact in be in non-complete state of contact all the time, thereby reduced the friction force between tyre tread and the freight container bottom surface widely, it is flexible to have guaranteed that steel is moulded tire rolling.8, the identical bonding design of hot melt between plastics tyre core wheel face and the metal rim is eight of a technical characterictic of the present invention.The purpose of doing like this is: because the hot melt under strained condition coincide between plastics tyre core and the wheel rim, so it can overcome the defective that can't coincide that the difference of the contraction coefficient of steel between moulding is brought, guarantee steel between moulding closely, the elasticity combination.
Technical scheme: steel is moulded cardan wheel, it comprises cardan wheel, the tire of described cardan wheel is made of plastics tyre core and the metal rim that is wrapped on the plastics tyre core wheel face, the core wheel of plastics tyre core is embedded with bearing and is positioned at wheel carrier by bearing axle, and wheel carrier is by bearing pin and bearing wheel fit and make wheel seat 360 degree revolutions.
The present invention compares with background technology, and the one, bearing capacity is big, and under the big situation of bearing capacity, can drive the goods that is carried and easily move and rotate; The 2nd, simple in structure, compact, the good airproof performance of assembling; The 3rd, wheel carrier adopts bearing to rotate, its stability of rotation, flexible; Four are to use the life-span long, are particularly suitable for being subject to external impacts, load carrying ability is big, working environment is quite abominable place is used.
Description of drawings
Fig. 1 is the structural representation that steel is moulded cardan wheel.
The specific embodiment
Embodiment 1: with reference to accompanying drawing 1.Steel is moulded cardan wheel, it comprises cardan wheel, the tire of described cardan wheel is made of plastics tyre core 2 and the metal rim 1 that is wrapped on the plastics tyre core wheel face, the core wheel of plastics tyre core is embedded with bearing 15 and is positioned at wheel carrier 3 by bearing axle 14, wheel carrier 3 cooperates by bearing pin 12 and bearing 9 wheel seats 8 and wheel seat 8 is freely turned round in 360 degree scopes, metal rim 1 adopts stainless steel material to make, and its manufacture craft is a prior art, is not described herein at this.During described plastics tyre core wheel face is the low arc wheel face in high both sides and with arc wheel face and metal rim 1 in wheel face match.
Described bearing axle 14 is by guide 5 and bearing 15 inner rings coupling, and the method for its coupling is a prior art, is not described herein at this.
Described plastics tyre core 2 both sides have annular groove and are used for build-in dust ring 13, and purpose is to stop dust to enter in the bearing 15.
The tire core of described plastics tyre is the nylon tire core, and the load capacity that the selection of this nylon tire core material is moulded cardan wheel according to its steel is decided.
Be equipped with seal ring 11 between edge and the wheel carrier 3 in the described bearing pin 12, purpose is to stop dust to enter in the bearing 9.
Described wheel seat 8 boss shaft hole mode flange arrangements and boss axis hole end face are equipped with dust ring 10, and bearing 9 is housed in the boss axis hole, and purpose is to stop dust to enter in the bearing 9.10 of described bearing 9 and dust rings are equipped with back-up ring 6, the porose retaining 7 of described back-up ring 6 covers.
Hot melt coincide bonding between described plastics tyre core wheel face and the metal rim 1.
What need understand is: though the foregoing description is to the mentality of designing of the present invention detailed text description of contrasting; but these text descriptions; just the simple text of mentality of designing of the present invention is described; rather than to the restriction of mentality of designing of the present invention; any combination, increase or modification that does not exceed mentality of designing of the present invention all falls within the scope of protection of the present invention.