CN101947987A

CN101947987A - Cross-country motorbike frame

Info

Publication number: CN101947987A
Application number: CN 201010279329
Authority: CN
Inventors: 莫莉; 田江文
Original assignee: Lifan Industry Group Co Ltd
Current assignee: Lifan Technology Group Co Ltd
Priority date: 2010-09-13
Filing date: 2010-09-13
Publication date: 2011-01-19
Anticipated expiration: 2030-09-13
Also published as: CN101947987B

Abstract

The invention discloses a cross-country motorbike frame. The frame comprises a bike head vertical pipe (1), a reinforcing plate (2), a forward oblique pipe (3), a reinforcing pipe (4), a main beam (5), a main pipe (6) and a tail pipe (7), wherein the forward oblique pipe (3) and the main beam (5) are welded on the bike head vertical pipe (1); the upper end of the tail pipe (7) is connected to the middle and back part of the main pipe (6); the left and right sides of the main pipe (6) close to the connecting position of the main pipe (6) and the tail pipe (7) are provided with vertical supporting lugs (11); connecting holes (12) are reserved on the vertical supporting lugs (11); an opening at the rear end of the main pipe (6) is connected by a V-shaped plate (13); and a round hole (14) is reserved on the middle part of the V-shaped plate (13). The invention provides the frame with shortened whole length, in which a rear splash guard and a back panel is simpler to arrange.

Description

A kind of cross-country motorcycle vehicle frame

Technical field

The invention belongs to the motor bike member, specifically, is a kind of body frame structure for automotive that is used on the cross-country motorcycle.

Background technology

Frame of motorcycle belongs to a basic building block of motor bike, and its version is more, is welded by many steel pipes usually.A kind of cross-country motorcycle vehicle frame as shown in Figure 5 belongs to traditional a kind of cross-country motorcycle body frame structure for automotive form.By headstock standpipe 1, brace panel 2, preceding inclined tube 3, reinforced pipe 4, girder 5, be responsible for 6, in the tail pipe 7 and L shaped link slot 8 form.Wherein preceding inclined tube 3 and girder 5 are welded on the headstock standpipe 1, and form an angle between preceding inclined tube 3 and the girder 5, are welded with brace panel 2 in this angle.The middle part of girder 5 bends extension downwards, the bending place is connected with the person in charge 6 by bolt, girder 5 lower ends are stretched in the L shaped link slot 8, and weld together with it, the middle part of L shaped link slot 8 is connected with tail pipe 7 by bolt, and the lower end of L shaped link slot 8 is connected also weld together with it by bolt with reinforced pipe 4.Reinforced pipe 4 is the circular arc bend pipe, and the other end of reinforced pipe 4 links to each other with preceding inclined tube 3.The person in charge 6 the other end is welded on the middle part of tail pipe 7, forms approximate " people " font structure, and in the tail pipe 7 upwards bendings near weld nugget, this bending part is close is responsible for 6.A kind of cross-country motorcycle vehicle frame of this traditional design, rear end extend to the front fender apron of forming mudwing 9 and the junction of rear mudguard 10 always, and the tail end by tail pipe 7 is connected with rear mudguard 10, and the while tail end of tail pipe 7 also directly is connected with rear end panel 9.Vehicle frame needs to install with rear mudguard 10 and rear end panel 9 respectively, and it is loaded down with trivial details to cause vehicle frame to install; Simultaneously, because the vibrations in the vehicle ' process can make between rear mudguard 10 and the rear end panel 9 to mismatch owing to beating mutually and being out of shape, influenced the attractive in appearance of car load.

Summary of the invention

Technical matters to be solved by this invention is to provide a kind of entire length to shorten, install rear mudguard and the more simple vehicle frame of rear end panel.

For solving above technical matters, a kind of cross-country motorcycle vehicle frame provided by the invention, comprise the headstock standpipe, brace panel, preceding inclined tube, reinforced pipe, girder, be responsible for and tail pipe, inclined tube and Main Girder Welding are on the headstock standpipe before described, and be welded with described brace panel in the angle that forms between preceding inclined tube and the girder, the middle part of described girder bends extension downwards, this girder is connected with the described person in charge in the bending place, the lower end of this girder is connected with the rear end of described reinforced pipe, the lower end of described tail pipe is connected the middle and lower part of this girder, described reinforced pipe is the circular arc bend pipe, the front end of this reinforced pipe links to each other with described preceding inclined tube, its key is: the upper end of described tail pipe is connected the described person in charge's postmedian, the left and right sides is provided with vertical journal stirrup on the person in charge of the close described person in charge and described tail pipe junction, described vertical journal stirrup is provided with connecting bore, and the opening of described person in charge rear end connects by V shaped slab, has circular hole at the middle part of described V shaped slab.

The cross-country motorcycle vehicle frame of this structure at first is contained in rear mudguard portion on the rear end panel, rear end panel is connected the vehicle frame tail end again.Because the vehicle frame tail end directly is not connected with rear mudguard, the vehicle frame tail end does not need to extend to the junction of rear mudguard and front fender apron, and the vehicle frame entire length shortens.Connecting bore on the vertical journal stirrup of vehicle frame tail end and the circular hole on the V shaped slab form leg-of-mutton installation form, make rear end panel can firmly be installed in the vehicle frame tail end, and vehicle frame left and right sides stress equalization.

Described V shaped slab is made of symmetrical swash plate, is provided with the transverse slat that connects left and right sides swash plate at the swash plate middle part, has circular hole in these transverse slat central authorities.。With the structure of further optimization V shaped slab, make V shaped slab can bear enough loads.

The tail down bending of described tail pipe and described person in charge's coupling end, described tail pipe is by this bending part and described person in charge welding.The whole bending part of tail pipe is connected with tail pipe, and its support effect is better, and the load-bearing effect of whole vehicle frame also can be better.

The invention has the beneficial effects as follows:

1) vehicle frame is welded by steel pipe, and its entire length shortens, and has saved welded tube and frock, cubing, has reduced the manufacturing cost of vehicle frame;

2) framing member of vehicle frame reduces, and has avoided assembly error big, makes manufacturing process become simple;

3) behind the vehicle frame length optimization, alleviated complete vehicle weight, improved the car load rideability to a certain extent, be more suitable for the professional and carry out vehicle stunt activity (as leap);

4) rear mudguard connects to ground by rear end panel, makes installation more simple and convenient, can avoid simultaneously car load travel in rear mudguard and rear end panel bad or distortion influences the car load outward appearance because of joint close.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the birds-eye view of Fig. 1.

Fig. 3 is the assembling scheme drawing of the present invention and rear end panel, rear mudguard.

Fig. 4 is the birds-eye view of Fig. 3.Fig. 5 is the traditional cross-country motorcycle vehicle frame in the background technology.

The specific embodiment

The invention will be further described below in conjunction with drawings and Examples:

A kind of as shown in Figure 1 cross-country motorcycle vehicle frame is made up of headstock standpipe 1, brace panel 2, preceding inclined tube 3, reinforced pipe 4, girder 5, the person in charge 6 and tail pipe 7.The front end of wherein preceding inclined tube 3 and girder 5 is welded on the headstock standpipe 1, and forms an angle between preceding inclined tube 3 and the girder 5, is welded with brace panel 2 in this angle.The middle part of girder 5 bends extension downwards, the bending place with by bolt be responsible for 6 and be connected, the middle lower end of girder 5 and the lower end weld together of tail pipe 7, the rear end weld together of the lower end of girder 5 and reinforced pipe 4, reinforced pipe 4 is the circular arc bend pipe, the front end of reinforced pipe 4 and preceding inclined tube 3 weld togethers.Reinforced pipe 4 is arranged to the circular arc bend pipe, is convenient to adapt with the driving engine profile, make reinforced pipe 4 can with the driving engine close fit, make installation compacter.The upper end of tail pipe 7 is welded on is responsible for 6 postmedian, forms approximate lambdoid structure, the tail down bending of tail pipe 7 and the person in charge's 6 coupling ends, and tail pipe 7 welds with the person in charge 6 by whole bending part.Near be responsible for 6 with the person in charge 6 of tail pipe 7 welds each side be provided with a vertical journal stirrup 11, vertical journal stirrup 11 is provided with connecting bore 12.

As shown in Figure 2, the left-right symmetric structure of whole vehicle frame, make constitute to be responsible for 6 about two steel pipes form an opening in the rear end, be responsible for 6 open rearward end and connect by V shaped slab 13, have circular hole 14 at the middle part of V shaped slab 13.V shaped slab 13 is made of symmetrical swash plate, is provided with the transverse slat that connects left and right sides swash plate at the swash plate middle part, has circular hole 14 in transverse slat central authorities.

As shown in Figure 3, being responsible on the vertical journal stirrup 11 in 6 left and right sides respectively has a connecting bore 12, with the circular hole 14 of being responsible for 6 rear end V shaped slabs, 13 middle parts among Fig. 4, constitutes leg-of-mutton firm installation form (among Fig. 4 shown in the dotted line).Rear mudguard 10 first portions are contained on the rear end panel 9, and rear end panel 9 links to each other with the vehicle frame tail end by three mounting holes that triangle distributes again.

As shown in Figure 4, because rear mudguard 10 directly do not link to each other with vehicle frame, the person in charge 6 of vehicle frame does not need to extend to the junction of rear mudguard 10 and front fender apron, be responsible for 6 with being connected of rear end panel 9 after no longer extension, the length of vehicle frame obviously shortens.

Claims

1. cross-country motorcycle vehicle frame, comprise headstock standpipe (1), brace panel (2), preceding inclined tube (3), reinforced pipe (4), girder (5), be responsible for (6) and tail pipe (7), inclined tube (3) and girder (5) are welded on the headstock standpipe (1) before described, and be welded with described brace panel (2) in the angle that forms between preceding inclined tube (3) and the girder (5), the middle part of described girder (5) bends extension downwards, this girder (5) is connected with the described person in charge (6) in the bending place, the lower end of this girder (5) is connected with the rear end of described reinforced pipe (4), the lower end of described tail pipe (7) is connected the middle and lower part of this girder (5), described reinforced pipe (4) is the circular arc bend pipe, the front end of this reinforced pipe (4) links to each other with described preceding inclined tube (3), it is characterized in that: the upper end of described tail pipe (7) is connected the postmedian of the described person in charge (6), go up the left and right sides the person in charge (6) and be provided with vertical journal stirrup (11) near the described person in charge (6) and described tail pipe (7) junction, described vertical journal stirrup (11) is provided with connecting bore (12), the opening of the described person in charge (6) rear end connects by V shaped slab (13), has circular hole (14) at the middle part of described V shaped slab (13).

2. according to the described a kind of cross-country motorcycle vehicle frame of claim 1, it is characterized in that: described V shaped slab (13) is made of symmetrical swash plate, is provided with the transverse slat that connects left and right sides swash plate at the swash plate middle part, has circular hole (14) in these transverse slat central authorities.

3. according to the described a kind of cross-country motorcycle vehicle frame of claim 1, it is characterized in that: described tail pipe (7) bends with the tail down of the described person in charge (6) coupling end, and described tail pipe (7) is by this bending part and the described person in charge (6) welding.