CN217374793U

CN217374793U - Motorcycle frame

Info

Publication number: CN217374793U
Application number: CN202221607727.2U
Authority: CN
Inventors: 吴春华
Original assignee: Chongqing Rongjue Technology Co ltd
Current assignee: Chongqing Rongjue Technology Co ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-09-06
Anticipated expiration: 2032-06-24

Abstract

The utility model relates to a motorcycle technical field specifically discloses a motorcycle frame, hang and two preceding suspensions including being responsible for and fixing left back pipe, right back pipe, the back on being responsible for, left back pipe and right back pipe fixed connection are in the left and right sides of being responsible for, and preceding suspension is located the below of being responsible for, still includes two intermediate junction boards, and every intermediate junction board is fixed connection on being responsible for and preceding suspension all simultaneously, and the intermediate junction board is located between being responsible for and the preceding suspension. This scheme can reduce the vibration that the motorcycle frame produced in the motorcycle use among the prior art.

Description

Motorcycle frame

Technical Field

The utility model relates to a motorcycle technical field, concretely relates to motorcycle frame.

Background

The motorcycle advances forward by the work done by the engine, when the engine works, the power is output from the transmission system of the engine and the output shaft of the transmission system drives the tyre of the motorcycle to rotate to realize the running of the motorcycle, the engine is fixed on the frame of the motorcycle in the prior art, the frame of the motorcycle is mainly divided into a ridge beam type (straight beam type, bent beam type), a cradle type, a steel tube weaving type, a double-wing beam type and the like, and the largest quantity of the motorcycle produced in China at present is the ridge beam type (straight beam type, bent beam type) frame.

The utility model discloses a spine formula (straight beam type, camber beam type) frame is including being responsible for, left back tube, right back tube, preceding suspension (bottom bracket) and back suspension, left back tube and the welding of right back tube are in the left and right sides of being responsible for, preceding suspension and back suspension are located the person in charge, left back tube and right back tube below, and preceding suspension and back suspension set up around being responsible for and all weld on being responsible for, the quantity of preceding suspension is two, two preceding suspensions are located the person in charge left and right sides, the back suspension is the hanger plate, the engine is fixed on preceding suspension and back suspension (like the reference numeral 3 that figure 1 shows, this figure derives from the utility model patent that chinese patent bulletin number is CN 2851081Y). The vibration that the engine during operation produced directly through front suspension and rear suspension transmit to being responsible for on, the vibration transmits to left back pipe and right back pipe through being responsible for again for whole motorcycle trembles acutely, especially can produce resonance phenomenon (many motorcycles reach when 60km/h at the speed per hour when being responsible for, produce resonance easily) when the vibration of engine reaches unanimity with the vibration frequency of being responsible for, the vibration is obvious aggravated this moment, neither does benefit to the travelling comfort of driving and can also cause the influence to the joint strength of whole car.

SUMMERY OF THE UTILITY MODEL

The utility model provides a motorcycle frame to reduce the vibration that motorcycle frame produced among the prior art in the motorcycle use.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a motorcycle frame, is including being responsible for and fixing left back pipe, right back pipe, back suspension and two front suspensions on being responsible for, and left back pipe and right back pipe fixed connection are in the left and right sides of being responsible for, and front suspension is located the below of being responsible for, still includes two intermediate junction boards, and every intermediate junction board is fixed connection simultaneously on being responsible for and front suspension, and the intermediate junction board is located be responsible for and front suspension between.

The principle and the advantages of the scheme are as follows:

although the engine is supported by the front suspension and the rear suspension together, the rear suspension is generally in a U-shaped structure, the rear suspension is far away from the main pipe from the fixed position of the engine, and the vibration generated by the engine is firstly dispersed on the U-shaped rear suspension and then transmitted to the main pipe, so that the vibration brought to the main pipe by the rear suspension is small, and the vibration generated by the engine is directly transmitted to the main pipe by the front suspension due to the short size of the front suspension, so that the vibration of the main pipe is large; this scheme is through hanging in the front and being responsible for between add intermediate junction plate to the vibration that makes the front hang needs the transmission for intermediate junction plate earlier, should be responsible for by the intermediate junction plate transmission again, at the in-process of vibration transmission, the vibration energy loss, and then greatly reduced the vibration of being responsible for, changed the vibration frequency simultaneously, fundamentally has solved the resonance phenomenon of engine vibration and whole car vibration, improves the travelling comfort of motorcycle driving and reduces the probability that resonance takes place.

Preferably, as an improvement, the connecting part of the intermediate connecting plate and the front suspension is in clearance fit with the main pipe.

Has the advantages that: this scheme is made the position of being connected with the front suspension through middle connecting plate and is responsible for clearance fit, and the vibration that further is favorable to the front suspension to bring just can transmit to be responsible for along the diffusion of middle connecting plate after, is favorable to improving the shock attenuation effect.

Preferably, as an improvement, the two intermediate connecting plates are abutted and fixedly connected.

Has the advantages that: this scheme makes two intermediate junction boards fuse, is favorable to improving the connecting plate on the one hand and forms holistic structural strength, and on the other hand also is favorable to conveniently realizing the intermediate junction board through two intermediate junction boards that offset and is responsible for the clearance fit control between, guarantees that the local position of intermediate junction board is in the clearance fit's of being responsible for uniformity on the frame of batch production.

Preferably, as an improvement, each of the intermediate connecting plates is integrally formed with a protrusion, and the two intermediate connecting plates are abutted by the opposite protrusions.

Has the advantages that: through bellied setting, be favorable to on guaranteeing that two intermediate junction boards offset the basis, reduce the machining precision control to intermediate junction board.

Preferably, as an improvement, be responsible for and be square, the intermediate junction board is the U type, and the intermediate junction board includes fixed connection's belly and the alar part at both ends, alar part and the fixed connection of being responsible for, and belly and preceding suspension fixed connection, belly and the person in charge clearance fit.

Has the advantages that: this scheme can also make the intensity of being responsible for higher on satisfying all design conditions's basis, compares in being responsible for the condition for the pipe simultaneously, and this scheme compromises the simplicity of middle connecting plate installation and the position accuracy of installation more easily.

Preferably, as a refinement, the two wings of the intermediate connection plate are symmetrical about the abdomen.

Has the advantages that: this scheme makes intermediate junction board self be symmetrical structure, has realized preventing slow-witted design, has further reduced intermediate junction board's the installation degree of difficulty, has avoided the problem of intermediate junction board misloading completely.

Preferably, as a modification, a connecting plate is connected between the right rear pipe and the left rear pipe.

Has the advantages that: the design through even board is favorable to improving the wholeness of right back pipe and left back pipe, and then improves the joint strength of whole back pipe.

Drawings

FIG. 1 is a prior art vehicle frame;

fig. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic view of the structure of FIG. 2 with the left and right rear tubes removed;

FIG. 4 is a schematic view of the connection relationship between the main pipe, the front suspension and the middle connection plate according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of the embodiment of the present invention when two intermediate connection plates are separated.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the main pipe 1, the left rear pipe 2, the right rear pipe 3, the rear suspension 4, the front suspension 5, the middle connecting plate 6, the abdomen 61, the wing 62, the bulge 63 and the connecting plate 7.

The embodiment is basically as shown in the attached figures 2 to 5, a motorcycle frame comprises a main pipe 1, a left rear pipe 2, a right rear pipe 3, a rear suspension 4 and two front suspensions 5 which are welded on the main pipe 1, wherein the left rear pipe 2 and the right rear pipe 3 are welded on the left side and the right side of the main pipe 1, the front suspension 5 and the rear suspension 4 are both positioned below the main pipe 1, the rear suspension 4 is fixed on the main pipe 1 (such as welding), the main pipe 1 is square, the motorcycle frame further comprises two U-shaped intermediate connecting plates 6, and the two intermediate connecting plates 6 enclose the main pipe 1 from the left side and the right side of the main pipe 1.

Every intermediate junction plate 6 all includes integrated into one piece's belly 61 and the alar part 62 at both ends, two alar parts 62 of intermediate junction plate 6 are symmetrical about belly 61, homogeneous shaping has two archs 63 on every alar part 62, two opposite archs 63 of intermediate junction plate 6 offset and weld in protruding 63 department, protruding 63 is simultaneously with being responsible for 1 welding, the belly 61 of intermediate junction plate 6 is located the side of being responsible for 1, intermediate junction plate 6 is located and is responsible for 1 and preceding suspension 5 between, preceding suspension 5 board welding is in the belly 61 of intermediate junction plate 6, the belly 61 of intermediate junction plate 6 and the 1 lateral wall clearance fit of being responsible for.

A connecting plate 7 is welded between the right rear pipe 3 and the left rear pipe 2.

The specific implementation process is as follows:

when the motorcycle frame of the embodiment is used, vibration generated by an engine is transmitted from the front suspension 5 and the rear suspension 4 to the main pipe 1, vibration generated by the front suspension 5 needs to be diffused on the two middle connecting plates 6 and then is transmitted to the main pipe 1 from the bulge 63 part of the middle connecting plate 6, and the vibration is attenuated on the middle connecting plates 6 and the front suspension 5, so that the vibration generated by the front suspension 5 can be greatly reduced after being transmitted to the main pipe 1; then hang 4 because of the size is great and still be U type structure itself, the vibration just transmits to being responsible for 1 after hanging 4 in the back and going up a large amount of attenuations, and then makes whole vibration greatly reduced who is responsible for 1, can avoid appearing being responsible for 1 vibration frequency and the unanimous condition of resonance that appears of engine vibration frequency basically, is favorable to improving the travelling comfort that the motorcycle was driven and reduces the influence of vibration to spare part joint strength on the motorcycle.

In addition, in the embodiment, the two middle connecting plates 6 are completely the same, and the single middle connecting plate 6 has a symmetrical structure, so that the installation requirement of the middle connecting plate 6 is low, and the installation difficulty is reduced; meanwhile, through the relative welding of the two middle connecting plates 6 with the bulges 63, the clearance fit between the abdomen 61 of the middle connecting plate 6 and the side wall of the main pipe 1 is well controlled, and the outgoing consistency of products is ensured.

The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a motorcycle frame, is including being responsible for and fixing left back pipe, right back pipe, rear suspension and two front suspensions on being responsible for, and left back pipe and right back pipe fixed connection are in the left and right sides of being responsible for, and front suspension is located the below of being responsible for, its characterized in that: still include two intermediate junction boards, every intermediate junction board is all fixed connection simultaneously on being responsible for and the front suspension, and the intermediate junction board is located and is responsible for and the front suspension between.

2. A motorcycle frame as claimed in claim 1, characterised in that: the part of the middle connecting plate connected with the front suspension is in clearance fit with the main pipe.

3. A motorcycle frame as claimed in claim 2, characterised in that: the two intermediate connecting plates are abutted and fixedly connected.

4. A motorcycle frame as claimed in claim 3, characterised in that: each intermediate connecting plate is integrally formed with a bulge, and the two intermediate connecting plates are abutted through the opposite bulges.

5. A motorcycle frame as claimed in claim 2, characterised in that: the person in charge is square, and the intermediate junction board is the U type, and the intermediate junction board includes fixed connection's belly and the alar part at both ends, alar part and the person in charge fixed connection, belly and preceding suspension fixed connection, belly and person in charge clearance fit.

6. A motorcycle frame as claimed in claim 5, characterised in that: the two wings of the intermediate connection plate are symmetrical about the abdomen.

7. A motorcycle frame as claimed in any one of claims 1 to 6, characterised in that: and a connecting plate is connected between the right rear pipe and the left rear pipe.