CN206276875U - One kind is without spoke wheel hub of electric bicycle mould - Google Patents

Abstract

The utility model provides one kind without spoke wheel hub of electric bicycle mould, including upper die and lower die and core；The die cavity edge of the upper die and lower die is provided with wheel rim chamber；The die cavity ecto-entad of the upper die and lower die sets gradually the first mandrel layers, the second mandrel layers, the 3rd mandrel layers and the 4th mandrel layers；First mandrel layers include at least six circumferential equally distributed first cores, and first core is semilune structure, and the semilune structure is towards outside；Second mandrel layers include the second core being staggered with the first core, and second core is that bottom is the trapezium structure of circular arc；3rd mandrel layers include with the 3rd main core being staggered and the 3rd auxiliary mould core, the 3rd main core is circular configuration, and the 3rd auxiliary mould core is dumbbell shape structure, and the center line and the first core of the 3rd main core and the 3rd auxiliary mould core are on the same line；4th mandrel layers include four arc cores of strip.

Description

One kind is without spoke wheel hub of electric bicycle mould

Technical field

The utility model is related to a kind of electric bicycle production mould, specifically, is related to one kind without spoke electrical salf-walking Wheel hub mould.

Background technology

Social now, electric motor car is widely used in daily life as a walking-replacing tool, and it uses electric power storage Pond as power supply, many advantages, such as with environmental emission reduction, easy to use and environmental protection.Electricmotor car wheel of the prior art Hub, is mainly formed by aluminium alloy casting, and its interior outer wheel hub is formed by connecting by multiple spokes, and simple structure, cost is relatively low.But During actual use, the shortcomings such as weight is big, damping performance is poor and easily gets rusty are there are.Therefore, research and develop a kind of Lightweight, intensity is high and possesses the cycle hub of preferable shock-absorbing capacity, for reducing electric motor car power consumption, improves human pilot Comfortableness and security, with important practical significance.

Utility model content

To achieve these goals, the utility model provide it is a kind of without spoke wheel hub of electric bicycle mould, by Different positions sets core so that the wheel hub of electric bicycle that in the utility model prepared by mould has various shock relieve vent groups Close, wheel hub of electric bicycle is had the advantages that lightweight, intensity is high and is possessed preferable shock-absorbing capacity.

It is described to be realized by the following technical solutions without spoke wheel hub of electric bicycle mould：

One kind is without spoke wheel hub of electric bicycle mould, including upper die and lower die and core；The die cavity of the upper die and lower die Edge is provided with wheel rim chamber；The die cavity ecto-entad of the upper die and lower die sets gradually the first mandrel layers, the second mandrel layers, Three mandrel layers and the 4th mandrel layers；First mandrel layers include at least six circumferential equally distributed first cores, described the One core is semilune structure, and the semilune structure is towards outside；Second mandrel layers include interlocking with the first core setting The second core put, second core is that bottom is the trapezium structure of circular arc；3rd mandrel layers include and are staggered The 3rd main core and the 3rd auxiliary mould core, the 3rd main core be circular configuration, the 3rd auxiliary mould core be dumbbell shape structure, it is described The center line and the first core of the 3rd main core and the 3rd auxiliary mould core are on the same line；4th mandrel layers include four The arc core of strip.

Preferably, the angle of osculation α 1 of first core is between 80 ° and 100 °.

Preferably, it is provided with bar shaped between first core and the 3rd main core and the first core and the 3rd auxiliary mould core Groove.

Preferably, the wheel hub of electric bicycle mould obtains upper die and lower die and is provided with for circumferentially positioned positioning dress Put, the positioner includes being arranged at the conical surface and dowel hole in the positioning of mould, and lower mould sets the lower conical surface of corresponding positioning And alignment pin, the conical surface and cone match under the positioning of lower mould in the positioning of the upper mould, dowel hole and alignment pin mutual cooperation Realize the circumferentially positioned of upper and lower mould.

The utility model uses upper and lower two halves mould, and die sinking takes tire conveniently, and processing and manufacturing mould is convenient；In order to ensure mould Multigroup core is aligned in chamber, and employing circumferential circular conical surface positioning and positioning finger setting prevents core from producing circumferential misalignment.Phase For wheel hub of electric bicycle common in the art, pass through many without spoke wheel of electric bicycle by what this mould was produced Individual, multilayer cushion hole radially with the supporting part of circumferential combination arrangement composition, while good strength and rigidity is kept, can be with Vibrations and impact from ground when electric bicycle is travelled effectively are buffered with matching of tyre, and undertakes the load of vehicle Lotus, the bending deformation for preventing tire from causing by excess compression improves the bearing capacity and service life of tire.

Brief description of the drawings

Fig. 1 is the top view without spoke wheel hub of electric bicycle upper mould in the utility model；

Fig. 2 is the upward view without spoke wheel hub of electric bicycle lower mould in the utility model.

Specific embodiment

The technical solution of the utility model is described in detail below by specific embodiment, but this practicality is new The scope of type is not restricted by the embodiments.

Embodiment 1

As illustrated in fig. 1 and 2, present embodiments provide it is a kind of without spoke wheel hub of electric bicycle mould, including upper mould 1, under Mould 2 and core；The edge of die cavity 3 of the upper mould 1 and lower mould 2 is provided with wheel rim chamber 11；The die cavity 3 of the upper mould 1 and lower mould 2 by The first mandrel layers, the second mandrel layers, the 3rd mandrel layers and the 4th mandrel layers are set gradually outside to inside；First mandrel layers include At least six circumferential equally distributed first cores 4, first core 4 is semilune structure, the semilune structure direction Outside；Second mandrel layers include the second core 5 being staggered with the first core 4, and second core 5 is circle for bottom The trapezium structure of arc；3rd mandrel layers include and the 3rd main core 6 being staggered and the 3rd auxiliary mould core 7, the described 3rd Main core 6 is circular configuration, and the 3rd auxiliary mould core 7 is the center of dumbbell shape structure, the 3rd main core 6 and the 3rd auxiliary mould core 7 Line and the first core 4 are on the same line；4th mandrel layers 8 include four arc cores of strip；The circle of the die cavity 3 Cylinder core 9 is provided with the heart.

Embodiment 2

As illustrated in fig. 1 and 2, one kind is present embodiments provided without spoke wheel hub of electric bicycle, different from embodiment 1 It is that the angle of osculation α 1 of first core is between 80 ° and 100 °；The main core 6 and first of first core 4 and the 3rd The groove 10 of bar shaped is provided between the auxiliary mould core 7 of core 4 and the 3rd.

Embodiment above is only preferred embodiment of the present utility model, it should be pointed out that, for ordinary skill For people, what is carried out on the premise of the utility model is not departed from is partially improved, still in protection domain of the present utility model it In.

Claims (3)

1. one kind is without spoke wheel hub of electric bicycle mould, including upper die and lower die and core；The die cavity side of the upper die and lower die Edge is provided with wheel rim chamber；The die cavity ecto-entad of the upper die and lower die sets gradually the first mandrel layers, the second mandrel layers, the 3rd Mandrel layers and the 4th mandrel layers；First mandrel layers include at least six circumferential equally distributed first cores, described first Core is semilune structure, and the semilune structure is towards outside；Second mandrel layers include being staggered with the first core The second core, second core be bottom for circular arc trapezium structure；3rd mandrel layers include and are staggered 3rd main core and the 3rd auxiliary mould core, the 3rd main core are circular configuration, and the 3rd auxiliary mould core is dumbbell shape structure, described the The center line and the first core of three main cores and the 3rd auxiliary mould core are on the same line；4th mandrel layers include four strips Arc core.

2. according to claim 1 without spoke wheel hub of electric bicycle mould, it is characterised in that：The string of first core Corner cut α 1 is between 80 ° and 100 °.

3. according to claim 2 without spoke wheel hub of electric bicycle mould, it is characterised in that：First core and The groove of bar shaped is provided between three main cores and the first core and the 3rd auxiliary mould core.