CN217152609U

CN217152609U - High-strength crankshaft assembly for motorcycle

Info

Publication number: CN217152609U
Application number: CN202220663647.2U
Authority: CN
Inventors: 郭健辉
Original assignee: Zhejiang Jinhui Machinery Co ltd
Current assignee: Zhejiang Jinhui Machinery Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-08-09
Anticipated expiration: 2032-03-25

Abstract

The utility model relates to the technical field of motorcycle accessories, in particular to a high-strength crankshaft assembly for motorcycles, which comprises a crankshaft, wherein a connecting block is fixedly connected below the middle inner side of the crankshaft, a limiting block is fixedly connected on the outer side of the connecting block, a bearing inner ring is slidably connected on the outer sides of the connecting block and the limiting block, a bearing outer ring is rotatably connected on the outer side of the bearing inner ring, and a crank is fixedly connected on the lower end surface of the bearing outer ring; the utility model discloses in, through the bearing outer ring and the bearing inner ring that set up, can effectively reduce the friction between connecting block and the bearing inner ring, let between connecting block and the bearing inner ring can not lead to wearing and tearing each other and the bent axle assembly that leads to between bearing inner ring and the connecting block because of long-time friction breaks, increase bent axle assembly's intensity to a certain extent, it is very practical.

Description

High-strength crankshaft assembly for motorcycle

Technical Field

The utility model relates to a motorcycle accessories technical field specifically is a high strength crankshaft assembly for motorcycle.

Background

The shaft is the most important part in the engine, it bears the force transmitted by the connecting rod, and changes it into torque to output through the crankshaft and drive other accessories on the engine to work, the crankshaft is under the combined action of centrifugal force of rotating mass, gas inertia force of periodic variation and reciprocating inertia force, make the crankshaft bear the effect of bending torsion load, therefore require the crankshaft to have sufficient intensity and rigidity, the surface of the journal needs wear-resisting, work evenly, the equilibrium is good, but there is friction between crankshaft assembly and crank on the motorcycle, namely the inside of top of the crank and outside of crankshaft make the crankshaft assembly rotate through friction, this way will cause the abrasion between the inside of top of the crank and crankshaft tie point after using for a long time, cause the crankshaft assembly of the motorcycle to damage, therefore, propose a kind of motorcycle and use the high-strength crankshaft assembly to the above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high strength bent axle assembly for motorcycle to the connection between bent axle and the crank that provides in solving above-mentioned background art can cause the problem of wearing and tearing after using for a long time.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a high strength bent axle assembly for motorcycle, includes the bent axle, inboard below fixedly connected with connecting block in the middle of the bent axle, the connecting block outside fixedly connected with stopper, connecting block and stopper outside sliding connection have the bearing inner ring, the bearing inner ring outside is rotated and is connected with the bearing outer ring, terminal surface fixedly connected with crank under the bearing outer ring.

Preferably, the crankshaft is inboard with the equal sliding connection of bearing inner ring and bearing outer ring, the joint has the ball outside the crank, the ball outside and crankshaft sliding connection.

Preferably, the number of the limiting blocks is 4, the limiting blocks are distributed in four directions of the connecting block, namely the upper direction, the lower direction, the left direction and the right direction, and the limiting blocks are square.

Preferably, the inner side of the bearing inner ring is provided with grooves, the shape number and distribution of the grooves on the inner side of the bearing inner ring are the same as those of the limiting blocks, and the thickness of the bearing inner ring is the same as the width of the limiting blocks.

Preferably, the arrangement shape of the balls is vertical, the balls are arranged in two rows, the two rows of balls are left and right, and the thickness of the crank plus the width of the two rows of balls is the same as the width of the connecting block.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, through the bearing outer ring and the bearing inner ring that set up, can effectively reduce the friction between connecting block and the bearing inner ring, let can not lead to the bent axle assembly that leads to between bearing inner ring and the connecting block wearing and tearing each other between connecting block and the bearing inner ring to break off because of long-time friction, the intensity of bent axle assembly is increased to a certain extent, and the connecting block outside is equipped with the stopper, the stopper can fix a position the bearing inner ring when the equipment bent axle, prevent the phenomenon of smooth silk from appearing between bearing inner ring and the connecting block simultaneously, and the articulate outside is equipped with the ball, the ball can effectively reduce the frictional force that the crank produced when the inboard slip of bent axle, certain degree increases articulate intensity, and is very practical.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the crank structure of the present invention;

fig. 3 is a schematic diagram of the structure of the limiting block of the present invention.

In the figure: 1-crankshaft, 2-connecting block, 3-bearing outer ring, 4-crank, 5-ball, 6-bearing inner ring and 7-limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a high-strength crankshaft assembly for a motorcycle comprises a crankshaft 1, a connecting block 2 is fixedly connected to the lower portion of the inner side in the middle of the crankshaft 1, a limiting block 7 is fixedly connected to the outer side of the connecting block 2, a bearing inner ring 6 is slidably connected to the outer sides of the connecting block 2 and the limiting block 7, a bearing outer ring 3 is rotatably connected to the outer side of the bearing inner ring 6, a crank 4 is fixedly connected to the lower end face of the bearing outer ring 3, the inner side of the crankshaft 1 is slidably connected with the bearing inner ring 6 and the bearing outer ring 3, balls 5 are clamped to the outer side of the crank 4, the outer side of the balls 5 is slidably connected with the crankshaft 1, friction between the connecting block 2 and the bearing inner ring 6 can be effectively reduced through the arranged bearing outer ring 3 and the bearing inner ring 6, the crankshaft assembly is prevented from being broken due to mutual abrasion between the bearing inner ring 6 and the connecting block 2 caused by long-time friction between the connecting block 2 and the bearing inner ring 6, and the strength of the crankshaft assembly is increased to a certain degree, the outer side of the connecting block 2 is provided with limiting blocks 7, the number of the limiting blocks 7 is 4, the limiting blocks 7 are distributed at four positions of the connecting block 2, namely the upper position, the lower position, the left position and the right position, and the shape of each limiting block 7 is a cube, the inner side of the bearing inner ring 6 is provided with a groove, the shape number and the distribution of the groove at the inner side of the bearing inner ring 6 are the same as those of the limiting blocks 7, the thickness of the bearing inner ring 6 is the same as the width of the limiting blocks 7, the limiting blocks 7 can position the bearing inner ring 6 when the crankshaft 4 is assembled, the phenomenon of wire sliding between the bearing inner ring 6 and the connecting block 2 is prevented, the outer side of the crankshaft 4 is provided with balls 5, the arrangement shape of the balls 5 is vertical arrangement, the balls 5 are arranged in two rows on the left and the right, the thickness of the crankshaft 4 and the width of the two rows of balls 5 are the same as the width of the connecting block 2, and the balls 5 can effectively reduce the friction force generated when the crankshaft 4 slides on the inner side of the crankshaft 1, the strength of the crank 4 is increased to a certain degree, and the crank is very practical.

The working process comprises the following steps: when producing the bent axle assembly, earlier with 2 butt joint bearing inner rings 6 of connecting block on 1 right side of bent axle, stopper 7 in the 2 outsides of connecting block inserts the inboard groove of bearing inner ring 6, make up bent axle 1 after the butt joint finishes, when promoting crank 4, the bearing outer ring 3 on crank 4 top rotates, bearing inner ring 6 is the fixed state with connecting block 2, effectively reduce the friction between connecting block 2 and the bearing inner ring 6, when crank 4 sinks bent axle 1 inboard completely simultaneously, ball 5 in the crank 4 outside then laminates and produces the friction with 1 inboard of bent axle, ball 5 can effectively reduce the frictional force that crank 4 produced when 1 inboard slip of bent axle, certain degree increases crank 4's intensity, and is very practical.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high strength crankshaft assembly for motorcycle, includes bent axle (1), its characterized in that: inboard below fixedly connected with connecting block (2) in the middle of bent axle (1), connecting block (2) outside fixedly connected with stopper (7), connecting block (2) and stopper (7) outside sliding connection have bearing inner ring (6), bearing inner ring (6) outside is rotated and is connected with bearing outer ring (3), terminal surface fixedly connected with crank (4) under bearing outer ring (3).

2. A high-strength crankshaft assembly for a motorcycle according to claim 1, wherein: the internal side of the crankshaft (1) is connected with the bearing inner ring (6) and the bearing outer ring (3) in a sliding mode, the ball (5) is clamped on the outer side of the crank (4), and the outer side of the ball (5) is connected with the crankshaft (1) in a sliding mode.

3. A high-strength crankshaft assembly for a motorcycle according to claim 1, wherein: the number of the limiting blocks (7) is 4, the limiting blocks (7) are distributed in four directions of the connecting block (2), namely the upper direction, the lower direction, the left direction and the right direction, and the limiting blocks (7) are square.

4. A high-strength crankshaft assembly for a motorcycle according to claim 1, wherein: the bearing inner ring (6) inboard is equipped with the recess, and the inboard recess shape quantity and the distribution of bearing inner ring (6) all with the shape quantity and the distribution of stopper (7) the same, and the thickness of bearing inner ring (6) is the same with the width of stopper (7).

5. A high-strength crankshaft assembly for a motorcycle according to claim 2, wherein: the arrangement shape of the balls (5) is vertical, the balls (5) are arranged in two rows, namely a left row and a right row, and the thickness of the crank (4) plus the width of the two rows of balls (5) is the same as the width of the connecting block (2).