CN212022874U

CN212022874U - Main frame of two-wheel motorcycle

Info

Publication number: CN212022874U
Application number: CN202020577424.5U
Authority: CN
Inventors: 黄小敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-11-27
Anticipated expiration: 2030-04-17

Abstract

The utility model provides a two-wheeled motorcycle main frame belongs to motorcycle technical field. The motorcycle frame solves the problems that the overall structure connection of the main frame of the existing motorcycle frame is complex, the connection acting force design is not reasonable, and the main frame is easy to deform. This two-wheeled motorcycle owner frame includes by the body frame pipe that the arc bending formed that goes up forward after, and the front end of main frame pipe is equipped with the car head pipe admittedly, and the rear end of main frame pipe is equipped with the engine mount pad admittedly, and the back of the arc bending of main frame pipe is provided with the seat cushion frame, is provided with between seat cushion frame and the body frame pipe to enable the stable connecting device who links firmly of both high strength of seat cushion frame, body frame pipe. The utility model has reasonable and simple structure design, smart whole structure design and low production cost; high strength connection between cushion frame and the body frame pipe between the two, connection structure stability is high, and connection effort design is comparatively reasonable, and the holistic mechanical strength of frame is high, and the frame is difficult for deformation, long service life.

Description

Main frame of two-wheel motorcycle

Technical Field

The utility model belongs to the technical field of the motorcycle, a two-wheeled motorcycle owner frame is related to.

Background

The frame of two-wheel motorcycle is the installation base body of every assembly of motorcycle, it connects the engine, oil tank and car body of two-wheel motorcycle into an organic whole, namely every assembly makes up a complete motorcycle, the frame of two-wheel motorcycle bears all the masses and effective loads of every assembly of motorcycle, and bear various forces and moments produced when the motorcycle runs, therefore its design requirement is higher.

A two-wheel motorcycle frame appears in the existing market, for example, Chinese patent numbers are as follows: 201821685991.1, the motorcycle frame includes an upper support and at least two arc lower supports, one end of the upper support has a connection part corresponding to the lower support, the lower support is configured to have one end connected with the upper support and the other end connected with the corresponding connection part, the upper support is connected with a rotatable ball head, each lower support is connected with the ball head through a lower connection rod; the lower support and the corresponding connecting part are connected through a connecting plate, a strip-shaped hole is formed in the connecting plate, and the connecting plate forms a rear fork.

In the structure, the main frame of the two-wheeled motorcycle is heavy in overall structure and high in production cost; the overall structure connection of the main frame of the two-wheel motorcycle frame is complex, the connection acting force design is not reasonable, the overall mechanical strength of the main frame is not enough, the main frame is easy to deform, and the service life is short.

Disclosure of Invention

The utility model aims at providing a two-wheeled motorcycle main frame that simple structure, structural design are comparatively dexterous to the above-mentioned problem that exists among the prior art, connect effort reasonable in design, and mechanical strength is high, difficult deformation.

The purpose of the utility model can be realized by the following technical proposal: a main frame of a two-wheeled motorcycle comprises a main frame pipe formed by bending a rear part to a front part and an upper part in an arc shape, wherein a head pipe is fixedly arranged at the front end of the main frame pipe, and an engine mounting seat is fixedly arranged at the rear end of the main frame pipe.

The main frame of the two-wheel motorcycle is mainly provided with the connecting device between the seat cushion frame and the main frame pipe, the seat cushion frame and the main frame pipe are stably and fixedly connected with each other in high strength through the connecting device, the connecting mechanical strength is high, the stability is high, the overall mechanical strength of the main frame is high, the main frame is not easy to deform, and the service life is long.

In the main frame of the two-wheeled motorcycle, the seat cushion frame comprises a seat cushion main beam and a seat cushion side tube in a U-shaped structure, the seat cushion main beam is horizontally positioned in the middle of the opening end of the seat cushion side tube, the rear end of the seat cushion main beam is provided with the goat's horn frame tubes which are symmetrically distributed, two ends of the seat cushion side tube are respectively provided with the connecting rods which are obliquely distributed, one of the goat's horn frame tubes is fixedly connected with one of the corresponding connecting rods, and the other goat's horn frame tube is fixedly connected with the other corresponding connecting rod. During actual manufacturing, this seatpad limit pipe and connecting rod welding link firmly, and seatpad girder and goat's horn frame pipe welding link firmly, and goat's horn frame pipe links firmly with the connecting rod welding that corresponds, and connection structure is stable, long service life.

In the above-mentioned motorcycle main frame, the two connecting rods are symmetrically arranged at both ends of the seat cushion side tube, and both the two connecting rods are arranged in a downward-inclining manner from back to front. In actual manufacturing, the main inclination modes of the two connecting rods from back to front and downward are as follows: is relatively obliquely distributed from top to bottom.

In the above-mentioned two-wheeled motorcycle main frame, the connecting device includes the triangle-shaped connecting seat, the triangle-shaped connecting seat be in the curved back position of arc of main frame pipe and with main frame pipe fixed connection, the left and right both sides of front end of seatpad girder all have the connecting pipe that is the symmetric distribution to axial extension forward, two connecting pipe overlap joints are in the left and right both sides of triangle-shaped connecting seat and form with the triangle-shaped connecting seat through the welded mode and link firmly, seatpad limit pipe and main frame pipe between still be provided with auxiliary stay device. The purpose of setting up like this can effectively strengthen the connection of main frame pipe and cushion frame, and connection structure is stable, long service life.

In the motorcycle main frame, one side wall of the triangular connecting seat is an arc-shaped wall formed by arc bending, the arc-shaped bending radian of the arc-shaped wall of the triangular connecting seat is the same as the arc-shaped bending radian of the main frame pipe, and the arc-shaped wall of the triangular connecting seat is fixedly arranged in the middle of the arc-shaped bending back of the main frame pipe in a welding mode. The purpose that sets up like this is that increase triangle-shaped connecting seat and body frame union coupling's area of contact, makes triangle-shaped connecting seat and body frame union coupling more firm, long service life through the welded mode.

In the above-mentioned two-wheeled motorcycle main frame, the auxiliary stay device include that the equal axial of the front end of two connecting rods has extended forward and has supported the pipe portion, the equal relative bending of the stay tube portion of two connecting rods links firmly in the both sides of main frame pipe through the welded mode, when the support pipe portion and the main frame pipe of two connecting rods link firmly, this main frame pipe, seatpad girder and two connecting rods form triangle-shaped stable support structure. The purpose of setting up like this makes the connection of main frame pipe and cushion frame more firm, and it is high to connect mechanical strength, long service life.

In the main frame of the two-wheeled motorcycle, the rear end of the triangular connecting seat is provided with the lug mounting seat which is arranged in a protruding mode, and the lug mounting seat is provided with the connecting hole which is used for being connected with the main frame shock absorber of the two-wheeled motorcycle. Triangle-shaped connecting seat and hangers mount pad formula structure as an organic whole, structural strength is high, during the use, makes the bumper shock absorber connect stably.

In the main frame of the two-wheeled motorcycle, the rear end part of the main frame pipe is symmetrically provided with the lug seats, the lug seats are positioned above the engine mounting seat, and the lug seats are used for being connected with the upper end of the engine. The purpose of setting up like this is when being connected with engine assembly, and connection structure is more stable, and it is higher to connect mechanical strength, long service life.

Compared with the prior art, the main frame of the two-wheel motorcycle has the advantages that: the structure design is reasonable and simple, the whole structure design is skillful, and the production cost is low; high strength connection between cushion frame and the body frame pipe between the two, connection structure stability is high, and connection effort design is comparatively reasonable, and the holistic mechanical strength of frame is high, and the frame is difficult for deformation, long service life.

Drawings

Fig. 1 is a schematic perspective view of a main frame of the motorcycle.

In the figure, 1, a main frame pipe; 2. a headstock tube; 3. an engine mount; 4. a seat cushion main beam; 5. a cushion side tube; 6. a goat horn frame tube; 7. a connecting rod; 8. a triangular connecting seat; 9. a connecting pipe; 10. a support tube portion; 11. a suspension loop mounting base; 12. connecting holes; 13. and (5) hanging an ear seat.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the main frame of the two-wheeled motorcycle mainly comprises a main frame pipe 1 formed by bending backwards, forwards and upwards in an arc shape, a head pipe 2 is fixedly arranged at the front end of the main frame pipe 1, an engine mounting seat 3 is fixedly arranged at the rear end of the main frame pipe 1, and a cushion frame is arranged at the back of the arc-shaped bend of the main frame pipe 1; during actual manufacturing, the specific structure of the seat cushion frame is as follows: mainly by seatpad girder 4 and the seatpad limit pipe 5 that is U type structure, seatpad girder 4 level is in the intermediate position of seatpad limit pipe 5's open end, the rear end of seatpad girder 4 has the goat's horn frame pipe 6 of symmetric distribution, the both ends of seatpad limit pipe 5 all have the connecting rod 7 that is the slope distribution, one of them corner frame pipe of goat's horn frame pipe 6 links firmly with one of them connecting rod 7 that corresponds, another corner frame pipe of goat's horn frame pipe 6 links firmly with another connecting rod 7 that corresponds, specific saying, these two connecting rods 7 symmetric distribution on seatpad limit pipe 5's both ends, these two connecting rods 7 distribute by the back down dip forward.

During actual manufacturing, a connecting device which can stably and fixedly connect the seat cushion frame and the main frame pipe 1 in high strength is arranged between the seat cushion frame and the main frame pipe 1. The specific implementation mode of the connecting device is as follows: the seat cushion is mainly composed of triangular connecting seats 8, the triangular connecting seats 8 are positioned at the back of the arc-shaped bend of the main frame pipe 1 and are fixedly connected with the main frame pipe 1, the left side and the right side of the front end of the main beam 4 of the seat cushion axially extend forwards to form connecting pipes 9 which are symmetrically distributed, and the two connecting pipes 9 are lapped on the left side and the right side of the triangular connecting seats 8 and are fixedly connected with the triangular connecting seats 8 in a welding mode; specifically speaking: one of them limit wall of this triangle-shaped connecting seat 8 is the arc wall that the arc is crooked to form, and the radian of the arc wall of this triangle-shaped connecting seat 8 is the same with the radian of the arc of main frame pipe 1 and sets up, and the arc wall of triangle-shaped connecting seat 8 sets firmly the middle part position at the back of the arc of main frame pipe 1 through the welded mode. An auxiliary supporting device is also arranged between the cushion side pipe 5 and the main frame pipe 1.

In the actual design, the specific implementation of the auxiliary supporting device is as follows: the equal axial of the front end of these two connecting rods 7 is extended forward and is had support tube portion 10, and the support tube portion 10 homogeneous phase of two connecting rods 7 is crooked relatively and links firmly in the both sides of main frame pipe 1 through the welded mode, and when the support tube portion 10 of two connecting rods 7 and main frame pipe 1 linked firmly, this main frame pipe 1, seatpad girder 4 and two connecting rods 7 formed triangle-shaped stable support structure.

During actual manufacturing, the rear end of the triangular connecting seat 8 is provided with a lug mounting seat 11 which is arranged in a protruding mode, and the lug mounting seat 11 is provided with a connecting hole 12 used for being connected with a main frame shock absorber of the two-wheeled motorcycle; the rear end part of the main frame pipe 1 is also symmetrically provided with lug seats 13, the lug seats 13 are positioned above the engine mounting seat 3, and the lug seats 13 are used for being connected with the upper end of an engine.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the main frame tube 1 is used more herein; a headstock tube 2; an engine mount 3; a seat cushion main beam 4; a cushion side tube 5; a goat horn frame tube 6; a connecting rod 7; a triangular connecting seat 8; a connecting pipe 9; a support tube part 10; a hanger mounting base 11; a connecting hole 12; ear mount 13, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. A two-wheeled motorcycle main frame comprises a main frame pipe (1) formed by bending a rear part to a front part upwards in an arc shape, wherein a head pipe (2) is fixedly arranged at the front end of the main frame pipe (1), and an engine mounting seat (3) is fixedly arranged at the rear end of the main frame pipe (1).

2. The motorcycle main frame according to claim 1, wherein the seat cushion frame comprises a seat cushion main beam (4) and a seat cushion side tube (5) in a U-shaped structure, the seat cushion main beam (4) is horizontally arranged in the middle of the opening end of the seat cushion side tube (5), the rear end of the seat cushion main beam (4) is provided with symmetrically distributed goat's horn frame tubes (6), both ends of the seat cushion side tube (5) are respectively provided with connecting rods (7) which are obliquely distributed, one of the goat's horn frame tubes (6) is fixedly connected with one of the corresponding connecting rods (7), and the other goat's horn frame tube of the goat's horn frame tube (6) is fixedly connected with the other corresponding connecting rod (7).

3. A motorcycle main frame according to claim 2, wherein said two connecting rods (7) are symmetrically arranged at both ends of the seat side tube (5), and both connecting rods (7) are arranged in a manner inclined backward and forward.

4. The motorcycle main frame according to claim 2 or 3, wherein the connecting device comprises a triangular connecting seat (8), the triangular connecting seat (8) is positioned at the back of the arc-shaped bend of the main frame pipe (1) and is fixedly connected with the main frame pipe (1), the left side and the right side of the front end of the seat cushion main beam (4) are respectively and axially extended with symmetrically distributed connecting pipes (9), the two connecting pipes (9) are lapped on the left side and the right side of the triangular connecting seat (8) and are fixedly connected with the triangular connecting seat (8) in a welding mode, and an auxiliary supporting device is further arranged between the seat cushion side pipe (5) and the main frame pipe (1).

5. A motorcycle main frame according to claim 4, wherein one of the side walls of the triangular connecting seats (8) is an arc-shaped wall formed by arc-shaped bending, the arc-shaped bending radian of the arc-shaped wall of the triangular connecting seat (8) is set to be the same as the arc-shaped bending radian of the main frame pipe (1), and the arc-shaped wall of the triangular connecting seat (8) is fixedly arranged at the middle position of the back of the arc-shaped bending of the main frame pipe (1) in a welding manner.

6. A motorcycle main frame as claimed in claim 5, characterised in that said auxiliary support means comprise two connecting rods (7) each having a support tube portion (10) extending axially forwardly from the front end thereof, the support tube portions (10) of the two connecting rods (7) being relatively bent and fixedly connected to the two sides of the main frame tube (1) by welding, the main frame tube (1), the seat main beam (4) and the two connecting rods (7) forming a stable triangular support structure when the support tube portions (10) of the two connecting rods (7) are fixedly connected to the main frame tube (1).

7. A motorcycle main frame as claimed in claim 6, characterised in that the rear end of the triangular connecting base (8) has a projecting lug mounting base (11), the lug mounting base (11) having a connecting hole (12) for connecting with a motorcycle main frame shock absorber.

8. A motorcycle main frame as claimed in claim 1, wherein the rear end of the main frame tube (1) is symmetrically provided with ear-hanging seats (13), the ear-hanging seats (13) are located above the engine mounting seat (3), and the ear-hanging seats (13) are used for connecting with the upper end of the engine.