Connecting method of vehicle head stand pipe, main beam and keel horizontal beam and vehicle frame

A connection method and riser technology, which are used in bicycle racks, bicycle accessories, transportation and packaging, etc., can solve the problems of being difficult to bear heavy loads and large welding workloads, and can avoid thermal deformation, increase the area, and are not easy to break. Effect

Active Publication Date: 2015-04-01
湖南五丰机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For this reason, the present invention proposes a connection method between the front riser, the main girder and the keel flat gi

Method used

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  • Connecting method of vehicle head stand pipe, main beam and keel horizontal beam and vehicle frame
  • Connecting method of vehicle head stand pipe, main beam and keel horizontal beam and vehicle frame
  • Connecting method of vehicle head stand pipe, main beam and keel horizontal beam and vehicle frame

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Embodiment 1

[0029] Without loss of generality, Figure 5-7 As shown, the present invention provides a connection method between the front riser, the main girder and the keel flat girder. The method is divided into the following steps:

[0030] Make a quasi-straight triangular prism connector 1. The quasi-straight triangular prism at least includes two bottom surfaces and one side surface required to form a straight triangular prism. The number of quasi-straight triangular prism connectors 1 is two, which are respectively the first connector a and The second connector b, the bottom surface of the similar straight triangular prism connector 1 is a right triangle, the height of the similar straight triangular prism connector 1 matches the width of the cross section of the keel flat beam 2, and the length of the two right sides of the right triangle The range is 20-40cm, and the material of the straight triangular prism connector 1 is iron or steel;

[0031] The front end of the main girder ...

Embodiment 2

[0037] further, Figure 8 As shown, in this embodiment, on the basis of Embodiment 1, the lower end surface of the front end part of the main beam is welded with a height compensation tube 3 with a rectangular section parallel to the main beam; The lower end surface of 3 is fastened and connected by welding; one side of the first connecting piece a and the second connecting piece b are fastened and connected with the side of the main beam and / or the side of the height compensation pipe 3 by welding. In this embodiment, One side of the first connecting piece a and the second connecting piece b are fastened to the side of the main girder and the side of the height compensation pipe 3 by welding.

Embodiment 3

[0039] In this embodiment, on the basis of the above-mentioned embodiments, the quasi-straight triangular prism connector 1 is formed by punching after cutting the steel plate. The specific structure is as follows Figure 9 and Figure 10 shown.

[0040] Further, in a preferred technical solution of this embodiment, the straight triangular prism connector 1 includes three surfaces, and the side connecting the two bottom surfaces of the right triangular prism is the side passing through the hypotenuse of a right triangle; this technical solution is suitable for welding Need, and then make the connection of the fitting place closer, and make a plane expansion suitable for the connection at one side of the right triangle.

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Abstract

The invention relates to the technical field of design of vehicle frames of motor tricycles, in particular to a connecting method of a vehicle head stand pipe, a main beam and a keel horizontal beam and a vehicle frame and solves the technical problems that connecting structures of vehicle head stand pipes, main beams and keel horizontal beams are high in welding workload and hardly tolerate heavy load in the prior art. The connecting method includes the steps that a similarly triangular right prism connecting piece (1) is fabricated, the main beam and the vehicle head stand pipe are firmly welded, the keel horizontal beam and the main beam are firmly welded, and welding of the keel horizontal beam and the main beam is reinforced through a first connecting piece (a) and a second connecting piece (b). According to the connecting method of the vehicle head stand pipe, the main beam and the keel horizontal beam and the vehicle frame, fastened connection between the keel horizontal beam and the main beam can be achieved through self fabrication of the similarly triangular right prism connecting piece, connecting bear load of the stand pipe can be reduced, the length of welding seams that act on the stand pipe can be reduced, and technical effects of avoiding passive thermal treatment or thermal deformation of the stand pipe can be achieved. Besides, by means of the connecting method of the vehicle head stand pipe, the main beam and the keel horizontal beam and the vehicle frame, technical effects of small deformation quantity when the vehicle frame of a motor tricycle carries heavy load, firm connection of welding positions and difficulty cracking can be achieved.

Description

technical field [0001] The invention relates to the technical field of motor tricycle frame design, in particular to a connection method between a head riser, a main girder and a keel flat beam and the frame thereof. Background technique [0002] In the prior art, the head riser, the main girder and the keel flat girder of the motor tricycle frame are connected in a relatively simple manner, the length of the weld at the joint is relatively short, and the length of the welding contact weld is relatively small. The keel flat beam bearing the keel load is usually divided into two halves and welded directly or indirectly to both sides of the front riser. When directly welding on both sides of the front riser, in order to meet the load-bearing requirements, it is usually necessary to perform repeated welding operations at the contact weld between the keel flat beam and the front riser, and the heat generated by welding can easily cause the front The riser is deformed by heat, a...

Claims

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Application Information

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IPC IPC(8): B62K19/20B62K19/28
Inventor 李现峰
Owner 湖南五丰机械有限公司
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