CN203623900U

CN203623900U - Worm and gear chainless bicycle

Info

Publication number: CN203623900U
Application number: CN201320832661.1U
Authority: CN
Inventors: 阚海辉; 华红
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-16
Filing date: 2013-12-16
Publication date: 2014-06-04
Anticipated expiration: 2023-12-16

Abstract

Provided is a worm and gear chainless bicycle. The worm and gear chainless bicycle comprises a transmission shaft, worm gears and worms, and is characterized in that a first shaft (1) is arranged at the position, corresponding to a center shaft of the bicycle, of a frame, the driving worm (2) is installed on the shaft, the driven worm gear (3) is installed below the shaft and meshed with the driving worm (2) on a crankset, a second shaft (4) is installed on the driven worm gear (3), the rear worm gear (5) is installed at the rear end of the second shaft, the transmission worm (6) is installed on a hub (7) of an axle of a rear wheel and meshed with the rear worm gear (5), the rear worm (6) rotates together with the hub (7) on the axle to drive the rear wheel of the bicycle to rotate, bearings (9) are installed on the front portion and the rear portion of the second shaft respectively, bearing bushings (8) are installed on the outer rings of the bearings respectively, and the bearing bushings (8) are fixed to a bearing block (10) and the frame. The worm and gear chainless bicycle has the advantages that the purpose that no chains are arranged on a bicycle body is achieved through two pairs of worm and gears and the second shaft, the phenomena that a chain falls off, and a pair of pants of a rider is clamped are avoided, the speed is high, maintenance is easy, and the worm and gear chainless bicycle can be easily obtained by modifying an existing bicycle.

Description

Worm and gear chain-less bicycle

Technical field

The utility model relates to field of vehicles, a kind of without chain more precisely, utilizes the bicycle of Worm Wheel System.

Background technology

China is that big country is produced and used to bicycle, can ride instead of walk, can body-building can solve again the contradiction of urban traffic congestion because of it, is therefore deeply subject to people's favor.But traditional bicycle is to rely on the wheel disc being arranged on axis to be arranged on the flywheel on bicycle rear axle by chain-driving, drive bicycle rear rotation to carry out by flywheel again, although simple in structure, but de-chain, chain rupture, clamp trousers, the thing that lubricating oil is made clothing dirty in the process of riding, of common occurrence, for this reason with chain guard, come out one by one without the bicycle of chain, the former has avoided lined trousers, has stain the deficiency of clothing, once de-chain has but increased trouble.The latter, complex structure, cost is high, cannot reequip existing vehicle, is therefore difficult to promote.

Summary of the invention

The purpose of this utility model adopts following technology to realize: a kind of worm and gear chain-less bicycle, formed by transmission shaft, worm gear, worm screw, it is characterized in that: on the vehicle frame of bicycle middle shaft position, have an axle, initiatively worm screw is housed on axle, initiatively worm mesh on driven worm gear and chain wheel is thereunder housed, driven worm gear dish is equipped with an axle, rear worm wheel is also housed on shaft rear end, on rear vehicle shaft " wheel hub ", transmission worm screw is housed, engage with rear worm wheel, worm screw is rotated together with " wheel hub " on wheel shaft, thereby drives bicycle rear to rotate.The forward and backward bearing that is equipped with on axle, outside race is equipped with bearing carrier ring, and bearing carrier ring and bearing seat and vehicle frame fix.

The utility model remarkable result: rely on two pairs of worms and wormwheels, an axle, realizes without chain object, can not have chain, not fast, the maintenance of lined trousers, speed easily, very easily to advantages such as existing bicycle repackings.

Accompanying drawing explanation

Accompanying drawing is structural representation of the present utility model.

Below in conjunction with accompanying drawing, utility model is further set forth.

The specific embodiment

Referring to figure, on the vehicle frame of bicycle middle shaft position, there is an axle 1, initiatively worm screw 2 is housed on axle, driven worm gear 3 is thereunder housed and engages with active worm screw 2 on chain wheel, driven worm gear dish is equipped with an axle 4, and rear worm wheel 5 is also housed on shaft rear end, rear vehicle shaft " wheel hub " upper 7 is equipped with transmission worm screw 6, engage with rear worm wheel 5, rear worm screw 6 is rotated together with " wheel hub " 7 on wheel shaft, thereby drives bicycle rear to rotate.The forward and backward bearing 9 that is equipped with on axle, outside race is equipped with bearing carrier ring 8, and bearing carrier ring 8 fixes with bearing seat 10 and vehicle frame.

Claims

1. a worm and gear chain-less bicycle, by transmission shaft, worm gear, worm screw composition, it is characterized in that: on the vehicle frame of bicycle middle shaft position, have an axle (1), initiatively worm screw (2) is housed on axle, driven worm gear (3) is thereunder housed to be engaged with active worm screw (2) on chain wheel, driven worm gear dish is equipped with an axle (4), rear worm wheel (5) is also housed on shaft rear end, on rear vehicle shaft wheel hub, (7) are equipped with transmission worm screw (6), engage with rear worm wheel (5), rear worm screw (6) is rotated together with wheel hub on wheel shaft (7), thereby drive bicycle rear to rotate.

2. worm and gear chain-less bicycle according to claim 1, it is characterized in that: the forward and backward bearing (9) that is equipped with on axle, outside race is equipped with bearing carrier ring (8), and bearing carrier ring (8) fixes with bearing seat (10) and vehicle frame.