CN110094460A - A kind of monocular chain - Google Patents

Abstract

The invention discloses a kind of monocular chains, it is that the ring body constituted is connected in series by multiple chain links, the front end of a chain link in adjacent chain link is connected in a manner of it can be freely rotated relative to the rear end of another chain link, chain link includes chain piece, the convex block being fixed together with chain piece, the pin shaft that two chain pieces and two convex blocks are fixed together, the convex block is equipped with bump aperture, chain on piece is equipped with chain film perforation, the transmission of monocular chain link may be implemented by the way that chain piece and convex block are fixed together, the chain link of monocular chain is single-unit number, it can allow the vehicle frame of any size, it avoids binodal number chain and has mesh number and require one to be set to even numbers, otherwise when vehicle frame error amount is excessive sometimes, it is too long that more sections can be generated, the too short phenomenon of a few section occurs.

Description

A kind of monocular chain

Technical field

The present invention relates to sprocket wheel transmission field, specifically a kind of monocular chain.

Background technique

Bicycle is conventional industries, and with more than 100 years history, the problem of due to environmental protection and traffic, bicycle was once again As the favorite traffic of countries in the world particularly developed countries resident, fitness tool, the center of gravity of world's bicycle trade is just from biography The type vehicles of riding instead of walk of system are to sports type, mountain, leisure type transformation, and in beauty, Europe, Deng developed country, bicycle is one The more universal movement of kind, body-building, leisure and recreational product.Annual whole world bicycle demand is huge, Japan The data statistics of CYCLEPRESS shows that whole world bicycle demand size is maintained at 1.06 hundred million levels within 2014, voluntarily Vehicle annual volume is about 5,000,000,000 dollars.

The vehicles that bicycle can be used as environmental protection are used to ride instead of walk, go on a journey；More and more people are using bicycle as strong Body equipment is gone on a tour for exercise of riding, bicycle；Bicycle is more much smaller than the path resource that automobile occupies；It is easy to maintain；Without useless Gas discharge, the pollutants such as inorganic oil, coolant；Quiet traveling；Other than periodically fastening components, it is not required to the features such as maintaining, To attract the consumer of replacement walking-replacing tool, the speed that can also delay motor vehicle to rise.From energy-saving and environmental protection, the whole world of low-carbon Change from the point of view of requiring, bicycle industry is undoubtedly the present situation and future directions for meeting China.

When using bicycle, pedal parts are assemblied on the left and right crank of middle axle, are one by flat power-conversion For the device of rotatory force, when cycling, pedal force passes to pedal parts first, then by crank shaft rotating crank, tooth Disk, axis, chain flywheel make rear wheel, so that bicycle be made to advance.Therefore transmission parts are extremely important, and transmission parts In chain be core, the whether smooth driving for directly affecting bicycle of chain drive and ride and can go on smoothly.

Common bicycle chain is usually applied to by outer chain sheet, inner chain sheet, chain rolling and pin shaft composition, the chain in the market When small drive mechanism, the mechanical strengths such as tensile strength and endurance life are much larger than needed for driving mechanism, therefore, using institute When needing intensity much smaller than the intensity that chain can be born, in contrast, the cost of the chain of the design is just improved, therefore, be such as In the case of the structural strength for where maintaining chain entirety, further the structure of chain is simplified, becomes chain now Manufacturer is badly in need of overcoming the problems, such as.

In the prior art, as shown in Figure 1 and Figure 2, although the structure replaces needing by half roller chain being fixed together with interior chain Roller chain to be mounted, although and the chain structure it is simple, reduce costs on the whole, once need to tie up because unexpected When repairing, the chain link not damaged need be gathered into binocular joint number and removed, cost can not be reduced again.

Summary of the invention

Goal of the invention: in order to solve the deficiencies in the prior art, the present invention provides a kind of monocular chain, which overcomes consumption Material is more, the disadvantage of weight weight, avoids binodal number chain from having mesh number and requires one to be set to even numbers, otherwise vehicle frame error amount is excessive sometimes When, it can generate that more sections are too long, the too short phenomenon of a few section occurs.

Technical solution: in order to achieve the goal above, a kind of monocular chain of the present invention, is connected by multiple chain links The ring body connected and composed, the front end of a chain link in adjacent chain link relative to another chain link rear end can freely turn Dynamic mode connects, and the chain link includes: chain piece, the convex block being fixed together with chain piece, by two chain pieces and two convex blocks The pin shaft being fixed together, the convex block are equipped with bump aperture, and chain on piece is equipped with chain film perforation；

The pin shaft sequentially passes through the chain film perforation of first chain on piece, the bump aperture on two convex blocks and second chain piece Chain film perforation so that two chain pieces are fixed together.

As present invention further optimization, the chain film perforation is identical with the size of bump aperture.

As present invention further optimization, when the pin shaft passes through chain piece, the position of two convex blocks offsets.

As present invention further optimization, the chain piece and convex block are fixed together by integrally formed mode, To increase reliability that chain link the uses load bearing intensity of inner chain sheet.

As present invention further optimization, the pin shaft is movably riveted on two chain on pieces by the vertical machine of group.

As present invention further optimization, two chain pieces are rotated relative to two convex blocks.

As present invention further optimization, the chain on piece is equipped with inclined surface, by adding inclined surface in chain on piece, The tensile strength of chain is increased, stability when fluted disc and chain running is strengthened.

The utility model has the advantages that a kind of monocular chain of the present invention has the advantage that compared with prior art

1, it is rolled by convex block instead of chain, structure is simple, and it is easy for installation, the time required for assembly is shortened, work is improved Make efficiency；

2, it by adding a convex block in interior chain on piece, avoids chain and exists between two neighboring half chain rolling when stretching The case where gap, occurs, to reduce the case where chain is stretched when moving and is deformed half chain rolling in the prior art hair It is raw, meanwhile, which can be realized the lightweight of chain entirety；

3, a convex block and inner chain sheet are completed the process by integrally formed mode, ensure that the reliability of chain link work And stability, and reduce roller rupture in the prior art, fall off or reduce the chain that a part abrasion generate and is undesirable It happens, promotes whole chain quality yield, reduce the carbon discharge capacity generated when whole manufacture；

4, chain on piece is made to be equipped with an inclined surface by beloid design, by adding inclined surface in chain on piece, from And increase the tensile strength of whole chain, meanwhile, so that sprocket wheel is more rapidly entered tooth improves the transmission of the excessive generation of sprocket wheel beat not Good and loss problem and chain and sprocket wheel generate bigger covering property and stability when operating；

5, the chain of the design gets around the thought and operation limitation of traditional binocular pitch chain item, by by chain piece and a convex block Being fixed together and chain link quantity may be implemented is single-unit number, and monocular chain can allow the vehicle frame of any size, avoid binodal number Chain has mesh number and requires one to be set to even numbers, when otherwise vehicle frame error amount is excessive sometimes, can generate that more sections are too long, and a few section is too Short phenomenon occurs.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the prior art；

Fig. 2 is the main view of the prior art；

Fig. 3 is main view of the invention；

Fig. 4 is the structural schematic diagram of chain piece.

Specific embodiment

With reference to the accompanying drawings and examples, the present invention is furture elucidated.

As shown in Figure 3, Figure 4, a kind of monocular chain of the present invention, it includes chain piece 1, convex block 2, pin shaft 3, bump aperture 21 and chain film perforation 11.

Embodiment

Pin shaft 3 sequentially passes through the bump aperture on the corresponding convex block 2 in 11, two positions of the chain film perforation on first chain piece 1 21 and second chain piece 1 chain film perforation 11 so that two chain pieces 1 are fixed together.By pin shaft 3 by two chain pieces 1 and two Convex block 2, which is fixed together, may be implemented the transmission of monocular chain link, when needing replacing chain link, need to only remove the chain link of damage, nothing The chain link not damaged must be gathered into binocular joint number to remove, whole chain structure not influenced, and keep appearance clean and tidy, it will not It is too long to there are more sections, less the too short situation of a section.

The above embodiments merely illustrate the technical concept and features of the present invention, and the purpose is to allow the skill for being familiar with the technical field Art personnel can understand the content of the present invention and implement it accordingly, and can not be limited the scope of the invention with this.All bases The equivalent changes or modifications that spirit of the invention is made, should be covered by the protection scope of the present invention.

Claims (7)

1. a kind of monocular chain is that the ring body constituted is connected in series by multiple chain links, a chain link in adjacent chain link Front end connected in a manner of it can be freely rotated relative to the rear end of another chain link, which is characterized in that the chain link includes: Chain piece (1), the convex block (2) being fixed together with chain piece (1), the pin that two chain pieces (1) and two convex blocks (2) are fixed together Axis (3), the convex block (2) are equipped with bump aperture (21), and chain piece (1) is equipped with chain film perforation (11)；

The pin shaft (3) sequentially passes through the chain film perforation (11) on first chain piece (1), the bump aperture on two convex blocks (2) (21) and two chain pieces (1) to be fixed together by the chain film perforation (11) of second chain piece (1).

2. a kind of monocular chain according to claim 1, it is characterised in that: the chain film perforation (11) and bump aperture (21) size is identical.

3. a kind of monocular chain according to claim 1, it is characterised in that: when the pin shaft (3) passes through chain piece (1), The position of two convex blocks (2) offsets.

4. a kind of monocular chain according to claim 1, it is characterised in that: the chain piece (1) and convex block (2) passes through one Body formed mode is fixed together.

5. a kind of monocular chain according to claim 1, it is characterised in that: the pin shaft (3) passes through the vertical machine activity of group It is riveted on two chain pieces (1).

6. a kind of monocular chain according to claim 1, it is characterised in that: two chain pieces (1) two relatively convex Block (2) rotation.

7. a kind of monocular chain according to claim 1, it is characterised in that: the chain piece (1) is equipped with inclined surface.