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A connection method between the front riser, the main beam and the keel flat beam and the vehicle frame thereof

A connection method and riser technology, which can be used in bicycle racks, bicycle accessories, transportation and packaging, etc., can solve the problems of large welding workload and difficult to bear heavy loads, and can increase the area, avoid thermal deformation, and reduce welding seams. effect of length

Active Publication Date: 2017-07-28
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 girder, which solves the problem of large welding workload and difficulty in bearing heavy loads in the prior art. loaded technical issues

Method used

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  • A connection method between the front riser, the main beam and the keel flat beam and the vehicle frame thereof
  • A connection method between the front riser, the main beam and the keel flat beam and the vehicle frame thereof
  • A connection method between the front riser, the main beam and the keel flat beam and the vehicle frame thereof

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

[0031] The front end of the main girder 5 is fastened to the side of the headstock riser 4 by welding;

[0032] After attaching the midpoint of the upper end surface of the keel flat beam 6...

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 triangular prism connector 1 is punched after being cut from a 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 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 the right triangle; this technical solution is to meet the welding needs, Furthermore, the connection at the joint is made tighter, and a plane expansion suitable for the connection is made on one side of the right triangle.

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Abstract

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 a frame thereof, which solves the problem of the gap between the head riser, main girder, and keel flat girder in the prior art. The welding workload of the connection structure is heavy, and it is difficult to bear the technical problem of heavy load. The steps include: making a triangular prism connecting piece (1), firmly welding the main beam and the headstock riser, firmly welding the keel flat beam and the main beam, using the first connecting piece (a) and the second connecting piece (b) to align the Welding reinforcement between the keel flat beam and the main beam; the invention realizes the fastening connection between the keel flat beam and the main beam through self-made triangular prism connectors, which reduces the connection bearing burden of the standpipe and reduces the weld seam acting on the standpipe length, thereby achieving the technical effect of avoiding passive heat treatment or thermal deformation of the standpipe. The invention realizes the technical effect that the deformation of the frame of the motor tricycle is small when the frame is heavily loaded, the connection of the welding part is firmer, and the fracture is not easy to occur.

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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Patent Type & Authority Patents(China)
IPC IPC(8): B62K19/20B62K19/28
Inventor 彭志祥
Owner 湖南五丰机械有限公司
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