CN209051238U

CN209051238U - A kind of bicycle wheel hub structure

Info

Publication number: CN209051238U
Application number: CN201821589276.8U
Authority: CN
Inventors: 蒋家达; 熊亚平
Original assignee: Ningbo City West Car Industry Co Ltd
Current assignee: Ningbo City West Car Industry Co Ltd
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2019-07-02
Anticipated expiration: 2028-09-28

Abstract

A kind of bicycle wheel hub structure, including wheel shaft, central siphon, Bian Gai, fastener, flange bearing, bushing and flower-drum body, the wheel shaft includes T-type axle center and the flange nut for being threaded onto T-type axle center one end, the central siphon covers the outside in the T-type axle center, the central siphon is reducer pipe, its both ends is machined with tooth line, the side lid is linked on the tooth line and is locked by the fastener, the flower-drum body is mounted on the centre of the central siphon, the both ends depressed area of the flower-drum body installs the bushing, installs the flange bearing in the inner hole of the bushing；By flange bearing instead of Bearing bearing (or ball bearing), manufacturing cost is reduced, facilitates installation and maintenance, meanwhile, after tested using discovery, the rolling characteristics of bicycle is more preferable, and the service life is longer for flange bearing.

Description

A kind of bicycle wheel hub structure

Technical field

The utility model relates to technical field of bicycles, and in particular to a kind of bicycle wheel hub structure.

Background technique

Bicycle is a kind of widely known vehicles, during cycle wheel is rotated relative to wheel shaft, flower-drum There are biggish sliding friction between wheel shaft, which is effectively converted to rolling by Bearing flower-drum (or ball flower-drum) Friction, guarantees to ride smooth, extends the service life of bicycle, but the accuracy of manufacture of Bearing flower-drum (or ball flower-drum) High, price valuableness, meanwhile, it is also time-consuming and laborious during assembly.

Utility model content

Aiming at the shortcomings existing in the above problems, the utility model provides a kind of bicycle wheel hub structure.

To achieve the above object, the utility model provides a kind of bicycle wheel hub structure, comprising:

Wheel shaft, central siphon, Bian Gai, fastener, flange bearing, bushing and flower-drum body, the wheel shaft include T-type axle center and are threaded onto The flange nut of T-type axle center one end, the central siphon cover the outside in the T-type axle center, and the central siphon is reducer pipe, and two End is machined with tooth line, and the side lid is linked on the tooth line and is locked by the fastener, and the flower-drum body is mounted on described The both ends depressed area of the centre of central siphon, the flower-drum body installs the bushing, installs the flange in the inner hole of the bushing Bearing.

The T-type axle center is fixedly mounted on cycle frame as a further improvement of the utility model,.

The fastener is hexagon socket head cap screw without a head as a further improvement of the utility model,.

The flange bearing is by engineering plastics moulding by casting, the flange shaft as a further improvement of the utility model, It holds as flanging type.

The bushing and the flange bearing are interference fit, the bushing as a further improvement of the utility model, Outer and the flange bearing flange on the inside of against, the flower-drum body and the bushing be interference fit.

The flower-drum body is made of iron or aluminum alloy materials as a further improvement of the utility model,.

Spoke hole is machined on the flower-drum body as a further improvement of the utility model,.

The utility model has the following beneficial effects:

By flange bearing instead of Bearing bearing (or ball bearing), manufacturing cost is reduced, facilitates installation and maintenance, together When, after tested using discovery, the rolling characteristics of bicycle is more preferable, and the service life is longer for flange bearing.

Detailed description of the invention

Fig. 1 is a kind of semi-cutaway of bicycle wheel hub structure of the utility model；

Fig. 2 is the enlarged drawing of location A in Fig. 1；

Fig. 3 is the schematic diagram of wheel shaft；

Fig. 4 is the semi-cutaway of central siphon；

Fig. 5 is the semi-cutaway of flower-drum body；

Fig. 6 is the semi-cutaway of the side lid in left side in Fig. 1；

Fig. 7 is the semi-cutaway of the flange bearing in left side in Fig. 1；

Fig. 8 is the semi-cutaway of bushing；

Fig. 9 is the schematic diagram of fastener.

In figure: 1, wheel shaft；11, T-type axle center；12, flange nut；2, central siphon；21, tooth line；3, Bian Gai；4, fastener；5, Flange bearing；6, bushing；7, flower-drum body；71, spoke hole.

Specific embodiment

As shown in Figure 1 and Figure 2, a kind of bicycle wheel hub structure of the utility model embodiment, including wheel shaft 1, central siphon 2, side Lid 3, fastener 4, flange bearing 5, bushing 6 and flower-drum body 7, wheel shaft 1 is including T-type axle center 11 and is threaded onto 11 one end of T-type axle center Flange nut 12, T-type axle center 11 are fixedly mounted on cycle frame, 2 sets of the central siphon outsides in T-type axle center 11, and central siphon 2 is to become Diameter pipe, both ends are machined with tooth line 21, and side lid 3 is linked on tooth line 21 and is locked by fastener 4, and fastener 4 is six in without a head Angle screw, flower-drum body 7 are mounted on the centre of central siphon 2, and the both ends depressed area of flower-drum body 7 installs bushing 6, in the inner hole of bushing 6 Mounting flange bearing 5, for flange bearing 5 by engineering plastics moulding by casting, flange bearing 5 is flanging type, bushing 6 and flange bearing 5 For interference fit, against flower-drum body 7 and bushing 6 are interference fit, flower-drum on the inside of the outer of bushing 6 and the flange of flange bearing 5 Body 7 is made of iron or aluminum alloy materials, and spoke hole 71 is machined on flower-drum body 7.

When specifically used, the utility model is understood for convenience, is described in conjunction with attached drawing；

In the prior art, bicycle realizes the conversion of sliding friction toward rolling friction by Bearing bearing or ball bearing, In the structure of the utility model, by flange bearing instead of Bearing bearing or ball bearing, flange bearing is by engineering plastics system At, frictional behaviour is more preferable, and abrasion is small, and service life is extended, meanwhile, the installation of flange bearing is very convenient to, cost Low and its another big advantage relative to Bearing bearing or ball bearing, during scrolling, central siphon is opposing stationary with axis, Flower-drum body, bushing and flange bearing rotate (three is installed together by interference) at the same speed, between flange bearing and central siphon, Rubbing surface is formed between flange bearing and side lid.

This flange bearing is made by engineering plastics, has good anti-deformation and hot property, specific as follows；

Mechanical performance:

Bending modulus: 7800MPa

Flexural strength: 210MPa

Allow surface pressing 20 DEG C: 80MPa

Hot property:

Long term service maximum temperature: 130 DEG C

Short-term service maximum temperature: 220 DEG C

Environment temperature highest in a short time: 220 DEG C

Service minimum temperature: -40 DEG C

Static life test: central siphon is fixed, and then, applies the loading of 1200N (120kg), toward flower-drum body with per minute 250 turns of speed turns 60 Wan Cihou (quite continuously ride 1200km), checks flange bearing rotational slide position and central siphon, side It covers at corresponding sliding friction adjustment, without removing, apparent abrasion and other harmful defects.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims

1. a kind of bicycle wheel hub structure, which is characterized in that including wheel shaft (1), central siphon (2), side lid (3), fastener (4), method Blue bearing (5), bushing (6) and flower-drum body (7), the wheel shaft (1) include T-type axle center (11) and are threaded onto the T-type axle center (11) The flange nut (12) of one end, the central siphon (2) cover in the outside of the T-type axle center (11), and the central siphon (2) is reducer pipe, Its both ends is machined with tooth line (21), and the side lid (3) is linked on the tooth line (21) and is locked by the fastener (4), institute The centre that flower-drum body (7) is mounted on the central siphon (2) is stated, the both ends depressed area of the flower-drum body (7) installs the bushing (6), the flange bearing (5) is installed in the inner hole of the bushing (6).

2. a kind of bicycle wheel hub structure according to claim 1, it is characterised in that: the fixed peace of the T-type axle center (11) On cycle frame.

3. a kind of bicycle wheel hub structure according to claim 1, it is characterised in that: the fastener (4) is in without a head Hex(agonal)screw.

4. a kind of bicycle wheel hub structure according to claim 1, it is characterised in that: the flange bearing (5) is by engineering Plastic pouring molding, the flange bearing (5) are flanging type.

5. a kind of bicycle wheel hub structure according to claim 1, it is characterised in that: the bushing (6) and the flange Bearing (5) is interference fit, and the outer of the bushing (6) and the flange inside of the flange bearing (5) are against the flower-drum body It (7) is interference fit with the bushing (6).

6. a kind of bicycle wheel hub structure according to claim 1, it is characterised in that: the flower-drum body (7) by iron or Aluminum alloy materials are made.

7. a kind of bicycle wheel hub structure according to claim 6, it is characterised in that: be machined on the flower-drum body (7) Spoke hole (71).