CN201305087Y

CN201305087Y - Striding type motorcycle frame engine suspension structure

Info

Publication number: CN201305087Y
Application number: CNU2008201005905U
Authority: CN
Inventors: 刘权
Original assignee: Chongqing Zongshen Technology Development and Research Co Ltd
Current assignee: Chongqing Zongshen Technology Development and Research Co Ltd
Priority date: 2008-11-17
Filing date: 2008-11-17
Publication date: 2009-09-09
Anticipated expiration: 2018-11-17

Abstract

The utility model discloses a striding type motorcycle frame engine suspension structure, comprising a girder, rear side tubes, diagonal bracing tubes and a rear fork shaft tube, wherein the girder is formed by bending a tube; the front segment of the two rear side tubes are welded on both sides of the horizontal segment of the girder; the vertical segment of the girder, which is downwards bent, passes through the top edge of a U-shaped block, reaches and is welded with the middle part of the rear fork shaft tube; the lower end of the two diagonal bracing tubes are welded beside the rear fork shaft tube of the U-shaped block; and the two side edges of the U-shaped block integrately form a suspension lug. The utility model has the advantages of improved strength, cost saving, increased suspension reliability of an engine and the like.

Description

The riding-type motorcycle frame engine suspension structure

Technical field

The utility model relates to riding-type motorcycle frame, especially engine suspension structure on the vehicle frame.

Background technology

Frame of motorcycle mainly is the framework that the steel pipe by plurality of specifications is welded into, by girder, the back pipe, formations such as down tube and bottom fork axis sleeve pipe, the anterior girder of riding-type motorcycle frame below will hang driving engine, generally be to finish at a plurality of suspension journal stirrups of the anterior welding of vehicle frame, consider stressed, the reason of vibration, hitch point generally will carry out around the vehicle frame bottom fork axis, make the suspension journal stirrup disperse on the pipe at fore several pipes and chain stay position, these position complex structures that cause vehicle frame, increase manufacturing cost, and, owing to the reason of welding, it is often insecure to hang journal stirrup, influences the reliability that motor cycle engine hangs.

The utility model content

The purpose of this utility model is: a kind of riding-type motorcycle frame engine suspension structure is provided, solves the problem that above-mentioned prior art exists, make body frame structure for automotive simple, engine suspension is reliable, and reduces manufacturing cost.

Riding-type motorcycle frame engine suspension structure of the present utility model, comprise girder, back pipe, down tube and bottom fork axis sleeve pipe, described girder is formed by the single tube bending, two back pipe leading portion is welded on the horizontal segment both sides of girder top, the welding bottom fork axis sleeve pipe of stamping forming U type piece dual-side middle part lateral direction penetrating, girder passes U type piece top margin up to bottom fork axis sleeve pipe middle part and be welded to each other for reclinate vertical section, two down tube lower ends are welded on U type piece dual-side bottom fork axis sleeve pipe next door, the one-body molded suspension journal stirrup in U type piece dual-side the place ahead.

Girder single tube structure can be saved cost, two back pipe can not increase with the welding difficulty of girder, special-purpose stamping forming U type block welding bottom fork axis sleeve pipe, two down tubes and girder, its weld strength welds height than manying between the tube and tube, the corresponding connection structure of also having simplified, and it is one-body molded on U type piece dual-side to hang journal stirrup, removed welding from, can reduce the technology cost, also the intensity height makes engine suspension more reliable.

The utlity model has following advantage: because girder is designed to the single tube structure, and adopt special-purpose stamping forming U type piece to weld bottom fork axis sleeve pipe, two down tubes and girder, and it is one-body molded on U type piece to hang journal stirrup, not only intensity improves, also save cost, increase the engine suspension reliability.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the simplified schematic diagram of riding-type motorcycle frame engine suspension structure of the present utility model.

The specific embodiment

Referring to accompanying drawing 1, riding-type motorcycle frame engine suspension structure of the present utility model, comprise girder 1, back pipe 2, down tube 3 and bottom fork axis sleeve pipe 5 etc., girder 1 is formed by the single tube bending, the top is a horizontal segment 13, horizontal segment 13 front ends are welded with seat tube, the section of being bent downwardly is vertical section 12, motor cycle engine is installed in below the horizontal segment 13 and vertical section 12 the place aheads, horizontal segment 13 both sides that 2 leading portions are welded on girder 1 top are managed in two back, it is seat cushions that 2 back segments are managed in the back, the installation site of back shelf etc., its connection mode, structure and prior art are just the same, stamping forming U type piece 4 usefulness steel plates are made, shape is the U-shaped that stands upside down, constitute by dual-side 42 and top margin 41, the welding bottom fork axis sleeve pipe 5 of U type piece 4 dual-sides 42 middle part lateral direction penetratings, bottom fork axis sleeve pipe 5 is used to install motorcycle bottom fork, girder 1 reclinate vertical section 12 top margin 41 that passes U type piece 4 is up to bottom fork axis sleeve pipe 5 middle parts, vertical section 12 top margin 41 with bottom fork axis sleeve pipe 5 and U type piece 4 of girder 1 is welded to each other simultaneously, two down tubes, 3 lower ends are welded on the dual-side 42 of U type piece 4, the position of weld is on bottom fork axis sleeve pipe 5 next doors, two down tubes 3 are welded on the back pipe 2 obliquely, general joint is the rear shock absorber of motorcycle installation site, its connection mode, structure and prior art are just the same, the dual-side 42 of U type piece 4 on the motor bike anterior position limit one-body molded 4 hang journal stirrups 6, hang journal stirrup 6 and be used to hang motor cycle engine, according to engine suspension require 4 hang journal stirrups 6 be positioned at bottom fork axis sleeve pipe 5 on, the below respectively has two.

Claims

1. riding-type motorcycle frame engine suspension structure, comprise girder, the back pipe, down tube and bottom fork axis sleeve pipe, it is characterized in that: described girder (1) is formed by the single tube bending, two back pipe (2) leading portion is welded on horizontal segment (13) both sides of girder (1) top, the welding bottom fork axis sleeve pipe (5) of stamping forming U type piece (4) dual-side (42) middle part lateral direction penetrating, girder (1) reclinate vertical section (12) passes U type piece (4) top margin (41) up to bottom fork axis sleeve pipe (5) middle part and be welded to each other, two down tubes (3) lower end is welded on U type piece (4) dual-side (42) bottom fork axis sleeve pipe (5) next door, the one-body molded suspension journal stirrup in U type piece (4) dual-side (42) the place ahead (6).