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Motorcycle frame structure

A frame structure and motorcycle technology, applied in bicycle frames, bicycle accessories, transportation and packaging, etc., can solve problems such as poor driving comfort, fracture and deformation of the frame, stress concentration of the main beam tube, etc., to avoid resonance events , Improve the rigidity and reduce the risk of fracture

Inactive Publication Date: 2015-04-01
CHONGQING ZONGSHEN INNOVATION TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problems of stress concentration in the main beam tube and resonance of the frame in the prior art frame, poor driving comfort and easy fracture and deformation of the frame

Method used

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  • Motorcycle frame structure
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Embodiment Construction

[0017] attached figure 1 It is the structural representation of motorcycle frame of the present invention, appended figure 2 to attach figure 1 The C-C sectional view, 3 is attached figure 1 D-D cross-sectional view. In the figure, 1 is the riser, 2 is the upper left main beam tube, 3 is the upper right main beam tube, 4 is the lower left main beam tube, 5 is the lower right main beam tube, 6 is the left connecting plate, 7 is the right connecting plate, 8 9 is the first bending part of the left upper main beam, 9 is the first bending part of the left lower main beam, 10 is the first bending part of the right upper beam, 11 is the first bending part of the right lower main beam, and 12 is the second bending part of the left upper main beam , 13 is the second bending part of the left lower main beam, 14 is the second bending part of the right upper main beam, and 15 is the second bending part of the right lower main beam. As can be seen from the figure, the motorcycle frame...

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PUM

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Abstract

In order to solve the problems existing in a frame in the prior that the stress of the main beam tube is concentrated, the frame generates resonance, the driving comfort is poor, and the frame is easy to fracture and deform, the invention provides a motorcycle frame structure, an upper main beam tube and a lower main beam tube are provided with a first bent part and a second bent part, the upper main beam tube and the lower main beam tube respectively form a first acute angle with a vertical tube part, a second acute angle is formed between the upper main beam tube and the lower main beam tube, and the first acute angle and the second acute angle are arranged oppositely. The beneficial and technical effects of the motorcycle frame structure are that when a vehicle is subjected to road impact, as the upper main beam tube and the lower main beam tube are arranged in a staggered manner, the deformed regions subjected to the maximum stress are distributed in a staggered manner, the stress regions of the upper main beam tube and the lower main beam tube are prevented from concentration, and thus the fracture risk generated by fracture or fatigue stress is lowered. In addition, the vibration, generated by such arrangement when the arrangement is subjected to road roughness vibration impact and the motor operates, makes the forced vibration frequency and the amplitude peak distribute in a staggered manner, the generation of a resonant event is prevented from happening, and the rigidity of the frame is improved.

Description

technical field [0001] The invention relates to motorcycle components, in particular to a motorcycle frame structure. Background technique [0002] The vehicle frame in the prior art includes a standpipe, a main beam tube and a support part, and its structure is that the standpipe extends backward and downwards to two main beam tubes, and then extends to the top of the rear wheel suspension mounting hole, and then extends downward to Engine lower suspension support. The main beam tubes are fastened plates formed by sheet metal stamping. In this way, the stress of the main beam tubes in the structure is concentrated and the frame will generate resonance vibration. The driving comfort is poor and it is easy to cause the frame to break and deform. Apparently, the vehicle frame in the prior art has problems such as stress concentration of the main girder tube, resonant vibration of the vehicle frame, poor driving comfort, and easy fracture and deformation of the vehicle frame. ...

Claims

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Application Information

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IPC IPC(8): B62K19/00
Inventor 王清友钟学良刘治国王科张中春
Owner CHONGQING ZONGSHEN INNOVATION TECH RES INST CO LTD
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