74 results about "Off-Road Motorbikes" patented technology

The invention provides a finite element analysis method for a competition-level site cross-country motorcycle frame, and belongs to the technical field of crossing of computer-aided engineering and vehicle structure design. The method comprises the following steps: performing parametric modeling on a frame main bearing structure based on CATIA software, and simplifying non-functional characteristics; importing the model into ANSYS Workbench, generating a high-precision finite element model by adopting a grid division strategy of mixing tetrahedron and hexahedron units, and considering the calculation efficiency and precision; defining material characteristics; a limit load working condition is simulated through statics analysis, a displacement cloud picture and a stress cloud picture are combined to be compared with the yield strength of a material, and topological optimization is conducted on a weak area; meanwhile, the inherent frequency of the frame is extracted through modal analysis, and the resonance risk is avoided. According to the method, statics analysis and modal analysis are carried out on the frame through cross-platform co-simulation, the structural reliability is evaluated, and the method is suitable for efficient development and performance optimization of competition-level cross-country motorcycle frames.

The rear damping mechanism of the cross-country motorcycle comprises a motorcycle frame and a rear fork connected to the motorcycle frame in a pivoted mode, the motorcycle frame is further provided with a first connecting point and a second connecting point, and the rear fork is further provided with a third connecting point; the third connecting point is used for being connected with the middle end of a first connecting rod in a pivoted mode, and a fourth connecting point and a fifth connecting point are arranged at the two ends of the first connecting rod respectively. A shock absorber is arranged between the first connecting point and the fifth connecting point, and a second connecting rod is arranged between the second connecting point and the fourth connecting point; the first connecting point, the second connecting point, the fourth connecting point, the third connecting point and the fifth connecting point are connected in sequence to form a line profile which is a quadrangle; the first connecting rod is subjected to acting force generated after the rear fork deflects, and the acting force is progressively dispersed to the second connecting rod till the acting force is transmitted to the shock absorber.

The utility model belongs to the technical field of motorcycle frames, and particularly relates to a cross-country motorcycle frame which comprises a vertical pipe, a U-shaped upper beam pipe is fixed on one side of the vertical pipe, the U-shaped upper beam pipe is integrally formed and manufactured, the two ends of the U-shaped upper beam pipe are both fixed to the vertical pipe, and the two ends of the U-shaped upper beam pipe are fixed to the vertical pipe. Two symmetrical lower beam pipes are fixed to the outer wall of the vertical pipe and located above the U-shaped upper beam pipe, a cross beam pipe is fixed to the bottom ends of the lower beam pipes, a first supporting pipe fixed to the cross beam pipe is fixed to the outer wall of the U-shaped upper beam pipe, and a second supporting pipe fixed to the first supporting pipe is fixed to the outer wall of the U-shaped upper beam pipe. A third reinforcing pipe fixed by the U-shaped upper beam pipe is fixed on the outer wall of the lower beam pipe, and a first reinforcing pipe is fixed between the outer walls of the U-shaped upper beam pipe; the strength and the rigidity of the frame can be effectively improved, the structure and the shape of the frame are kept unchanged, and the reliability and the stability of the off-road motorcycle frame are effectively improved.

The invention discloses an improved tread pattern structure of an off-road motorcycle tire, and relates to the technical field of tires, the improved tread pattern structure is used on a tread band, and the tread band sequentially comprises a sub-tread band A, a sub-tread band B and a sub-tread band C from the middle to the two sides in the transverse direction; the sub-tread band A comprises a sub-tread band A1 and a sub-tread band A2, the sub-tread band A1 is the central part of the sub-tread band A, and the sub-tread band A2 is the other central part of the sub-tread band A; the tread band is formed by combining a plurality of same tread modules T in the circumferential direction, and the tread modules T are alternately copied in a mirror image mode in the circumferential direction of the tire and have a preset circumferential length J; the tread module T comprises a first pattern groove, a second pattern groove, a third pattern groove, a fourth pattern groove, a fifth pattern groove and a sixth pattern groove which are arranged on the opposite sides relative to the equatorial line X-X of the tire. The shape, the width, the section and the like of the pattern groove are optimally designed, so that the performance of the tire is greatly improved.

The utility model discloses a motor battery centrally-arranged side-out cross country motorcycle, which comprises a frame, a motor assembly and a battery assembly, the motor assembly and the battery assembly are installed on the frame, the frame comprises a bracket and a main beam, the bracket and the main beam are connected and enclose to form an installation space, and the motor assembly and the battery assembly are located in the installation space from bottom to top. A first mounting assembly and a second mounting assembly which are arranged on the bracket are arranged in the mounting space, the motor assembly is detachably arranged on the first mounting assembly, the first mounting assembly abuts against and limits the two ends of the motor assembly, fixes the two ends of the motor assembly and meanwhile drags the bottom of the motor assembly, and the second mounting assembly is arranged above the first mounting assembly; supporting limiting tables are arranged on the two sides of the second installation assembly, the battery assembly is detachably arranged on the second installation assembly and abuts against the supporting limiting tables, and the supporting limiting tables support the battery assembly and limit the battery assembly to slide front and back. Compared with the prior art, the utility model has the advantages that after the motor assembly and the battery assembly are installed, the supporting area is larger, and the structural stability is strong.

1. Name of this design product: Off-road motorcycle tail cover (T1). 2. Application of this design product: used as motorcycle accessories. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The utility model discloses a cross country motorcycle finger protective cover with multiple structure supports, which comprises a protective cover structure, the protective cover structure is fixedly connected with a mounting connection structure, the protective cover structure comprises a protective cover serving as a body, and a protective coating is sprayed on the surface of the protective cover. Meanwhile, an arc-shaped steel plate is fixedly laid on the inner side of the protective cover, a connecting disc with a steel column is fixedly welded to the inner side of the arc-shaped steel plate, the arc-shaped steel plate is fixedly welded to the mounting connecting structure through the connecting disc and the steel column, the mounting connecting structure comprises a connecting ring with a through hole block, and the connecting ring is fixedly welded to the connecting disc; and meanwhile, the other connecting disc is welded and fixed to a threaded through hole disc, a connecting bolt capable of being in threaded connection with the cross-country motorcycle is installed in the threaded through hole disc, and the cross-country motorcycle finger protective cover with the multi-structure support plays a role in spraying protection through the arranged protective coating.

1. Name of the product in this design: Flashlight (H2). 2. Application of this design: It is suitable for use in scenarios such as automobiles (trucks, cars, off-road vehicles), motorcycles, electric vehicles, bicycles, skateboards, drones / outdoor camping, night walking, running, and night mountain climbing to improve the nighttime warning effect. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

An off-road motorcycle tyre comprises a tread band having a central annular portion extending astride of an equatorial plane (X-X) of the tyre (1) and comprising: - a plurality of circumferentially consecutive central blocks (15) arranged astride of the equatorial plane (X-X) and having a first width (LI) in the axial direction; - a plurality of circumferentially consecutive first lateral blocks (20) arranged next to the central blocks (15) and having a second width (L2) in the axial direction; - a plurality of circumferentially consecutive second lateral blocks (60) arranged next to the central blocks (15) on the opposite side with respect to said plurality of first lateral blocks (20) and having said second width (L2) in the axial direction; wherein the ratio between said second width (L2) and said first width (LI) is comprised between 0.65 and 1.3.

The present application relates to a kind of off-road motorcycle spoke wheel rim multi-station synchronous hole punching processing equipment, comprising: rack;Rotary table, is set to the upper portion of rack;Wheel rim clamping mechanism, is set to rotary table, for clamping the wheel rim placed horizontally and drive wheel rim rotate around vertical axis;Multiple hole punching processing components are uniformly arranged along the periphery of wheel rim, each hole punching processing component includes: the cannon of being set to the inner side of wheel rim, the hole punching punch of being set to the outer side of wheel rim and being opposite to cannon, the first drive cylinder of driving hole punching punch moves along radial direction, the punch pin of being coaxially set in the central through channel of hole punching punch, and the second drive cylinder of driving punch pin moves along axial direction;Wherein, multiple hole punching processing components are divided into at least two groups, each group has different punching angle;Valve hole punching component, it is set between two adjacent hole punching processing components, for punching valve hole in the process of wheel rim rotation.Processing efficiency is higher.

The invention discloses a cross-country motorcycle frame steel pipe cutting device and a machining method thereof, and relates to the field of cross-country motorcycle frame manufacturing. The cross-country motorcycle frame steel pipe cutting device comprises a steel pipe cutting mounting table, a steel pipe cutting assembly is arranged on one side of the steel pipe cutting mounting table, and a steel pipe clamping assembly is arranged on one side of the steel pipe cutting assembly; the automatic length fixing assembly is arranged on one side of the steel pipe clamping assembly, the length fixing limiting assembly is arranged on one side of the automatic length fixing assembly, the impurity treatment assembly is arranged below the steel pipe cutting mounting table, and through the steel pipe cutting assembly and the contact type length fixing system, precise arc cutting of a steel pipe is completed through one-time clamping, direct welding can be achieved, and milling machine machining is replaced; the problems that secondary clamping is needed during milling of the arc-shaped end face, the accumulated time consumption accounts for more than 40% of the whole machining period (taking a chromium-molybdenum steel pipe with the diameter being 60 * 4 mm as an example, the time consumption of single-piece milling is larger than or equal to 15 minutes), the positioning reference is lost due to repeated sequence turning, the perpendicularity error of the arc-shaped end face and the axis of a pipe body often exceeds + / -1.5 degrees, and manual grinding is needed during welding are solved.

The present application relates to the field of motorcycle technology, and particularly relates to a motorcycle frame, comprising a front frame body, a rear frame body and an axle distance adjusting mechanism, wherein the frame is designed as a split structure of the front frame body and the rear frame body, and three synchronous driving units are arranged, respectively, inside a main beam at the upper part and inside two slide pipes at the lower part, to form an upper and lower double-plane three-point guiding system. When the axle distance is adjusted, the three synchronous driving units synchronously drive the slide beams to slide in the front and rear directions relative to the main beam, and the two slide rods are synchronously driven to slide in the front and rear directions relative to the corresponding slide pipes, so that the rear frame body as a whole is translated relative to the front frame body, thereby accurately changing the axle distance length. The structure enables the rider to flexibly adjust the axle distance according to different terrains, significantly improves the multi-scene adaptability of the off-road motorcycle, and solves the technical problem of fixed axle distance of the traditional integrated frame.

The utility model discloses a front shock absorber of a heavy cross-country motorcycle, and relates to the field of shock absorbers. Comprising a sleeve set and a lower fixing foot, a limiting table is arranged on the inner wall of the lower fixing foot and used for stopping the sleeve set and a fixing base, a low-speed oil way and a high-speed oil way are arranged in the sleeve set, and an adjusting structure matched with the fixing base is arranged in the lower fixing foot. The adjusting structure comprises a high-speed compression adjusting assembly and a low-speed compression adjusting assembly, the high-speed compression adjusting assembly is used for adjusting the oil passing amount in the high-speed oil way, and the low-speed compression adjusting assembly is inserted into the high-speed compression adjusting assembly and used for adjusting the oil passing amount in the low-speed oil way. The high-low speed compression damping can be adjusted only by adjusting the low-speed compression adjusting assembly and the high-speed compression adjusting assembly through tools, adjustment is easy, user requirements can be well met, and the adjusting range is large.

1. Name of the designed product: side cover of off-road motorcycle fuel tank (T1). 2. Use of the designed product: used for motorcycle accessories. 3. Design points of the designed product: in shape. 4. Pictures or photos that best show the design points: assembly state perspective view. 5. Other components that need to be explained: component 1 is the left fuel tank side cover of the motorcycle fuel tank side cover, component 2 is the right fuel tank side cover of the motorcycle fuel tank side cover, and component 1 and component 2 are used in pairs.

An off-road motorcycle tyre comprises a tread band having a maximum chord (C). The tread band comprises a central annular portion (M) extending astride of an equatorial plane (X-X) of the tyre (1) and comprising a plurality of circumferentially consecutive first central blocks (15) arranged next to the equatorial plane (X-X) and a plurality of circumferentially consecutive second central blocks (50) arranged next to the equatorial plane (X-X) on the opposite side with respect to the first central blocks (15), each second central block (50) being axially adjacent to a respective first central block (15). An intermediate annular portion (5) without blocks is arranged astride of the equatorial plane (X-X) and extends between the first central blocks (15) and the second central blocks (50). Each first central block (15) and the respective second central block (50) are arranged at a respective minimum mutual distance in the axial direction such that the ratio between said minimum mutual distance and said predetermined maximum chord (C) is greater than, or equal to, 0.15.

The utility model discloses a single-parallel close-packed structure for a battery pack of an electric cross-country motorcycle, which comprises a single-parallel close-packed body, an auxiliary component arranged above the single-parallel close-packed body, and a protective component arranged on one side of the single-parallel close-packed body. The first telescopic rods sleeved with the springs can absorb impact force and disperse pressure, so that the battery units are effectively protected against direct impact, meanwhile, the protection assemblies which are arranged in a single and close-packed mode can provide additional buffer protection when the battery pack is subjected to side impact, the influence of the impact force on the battery units is further reduced, and the service life of the battery pack is prolonged. Impact force can be effectively absorbed and dispersed in multiple directions, and the use requirements of the electric cross-country motorcycle under complex and changeable terrains are met.

The invention discloses a tread pattern structure of an off-road motorcycle tire, and relates to the technical field of tires, the tread pattern structure is used on a tread band, and the tread band sequentially comprises a sub-tread band A, a sub-tread band B and a sub-tread band C from the middle to the two sides in the transverse direction; the sub-tread band A comprises a sub-tread band A1 and a sub-tread band A2, the sub-tread band A1 is the central part of the sub-tread band A, and the sub-tread band A2 is the other central part of the sub-tread band A; the tread band is formed by combining a plurality of same tread modules T in the circumferential direction, and the tread modules T are alternately copied in a mirror image mode in the circumferential direction of the tire and have a preset circumferential length J; the tread module T comprises a first pattern groove, a second pattern groove, a third pattern groove and a fourth pattern groove which are arranged on the opposite sides relative to the equatorial line X-X of the tire. The shape, the width, the section and the like of the pattern groove are optimally designed, so that the use performance of the tire is greatly improved.

The invention provides a progressive buffer shock absorber of a cross-country motorcycle, and relates to the field of cross-country motorcycle shock absorbers. The buffering shock absorber of the cross-country motorcycle comprises an upper lug, a lower lug, a protective cover, a shell, a hydraulic damping assembly and an adjustable mechanical buffering assembly. A sliding cover capable of sliding along the inner wall of the protective cover is arranged in the protective cover, a first damping spring is arranged at the bottom of the sliding cover, an extrusion disc is fixed to the bottom of the first damping spring, the adjustable mechanical buffering assembly comprises a threaded sleeve, a threaded rod and a second damping spring, and the threaded sleeve is fixedly connected with the top of the protective cover. Through the adjustable mechanical buffering assembly composed of the threaded sleeve, the threaded rod and the second damping spring, a user is allowed to manually pre-adjust the buffering hardness according to the road condition, the first damping spring and the hydraulic damping assembly are combined, a multi-stage buffering system with the mechanical and hydraulic synergistic effect is formed, and the adaptive capacity of the shock absorber to the complex cross-country road condition is remarkably improved.

The utility model discloses an off-road motorcycle brake disc protection structure with a double protection structure, which comprises a shell protection structure, a brake installation protection structure is fixed above the shell protection structure, the shell protection structure comprises a protection shell, the inner side of the protection shell is provided with an installation groove, and the installation groove is arranged in the protection shell. A through hole facilitating penetrating and fixed connection of the fixing bolt set is formed in the surface of the protective shell in a penetrating mode, meanwhile, a mounting hole connected with the mounting groove in a penetrating mode is formed in the surface of the protective shell in a penetrating mode, a brake disc rotating shaft is rotationally mounted in the mounting hole through a connecting bearing, and a brake disc is fixedly mounted on the surface of the brake disc rotating shaft in a penetrating mode. The off-road motorcycle brake disc protection structure with the double protection structures comprises a brake installation protection structure and a brake disc, the brake disc is installed between protection shells in a rotating mode, rubber blocks are fixedly installed on the surfaces of the protection shells in an adhering mode, the rubber blocks are symmetrically arranged in an adhering mode, and the brake installation protection structure comprises a connecting frame with a through groove. And a connecting bearing is arranged, so that the rotating friction is reduced.

1. The name of this design product: Off-road motorcycle tire clamp. 2. The purpose of this product is to lock the motorcycle tire. When the inner tube bursts or is flat, the outer tire is locked to prevent brake failure. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The invention relates to a support stand (1) for a footrest (2) of a motocross motorcycle, which serves as a separate motorcycle stand not attached to the motorcycle. The support stand (1) has an inclined support surface (3) with a lateral tilt for supporting the motorcycle with a footrest (2) and allows a rider to sit on the motorcycle and place both feet on the footrests (2) when starting. A height adjustment (8) allows adaptation to the height of the footrest (2), and a force measuring device (16) enables the determination of an optimal seating position for starting.