1053results about "Rims" patented technology

An aerodynamic bicycle rim comprising: a circumferential outer portion comprising a circumferential outer surface, the circumferential outer portion adapted to seat a bicycle tire; a nose; and a set of sidewalls, each sidewall extending radially from the nose of the aerodynamic bicycle rim to a corresponding transition to the circumferential outer surface to form a rim body having a maximum rim body width that is greater than a maximum width of the bicycle tire. The aerodynamic bicycle rim is operable to seat the bicycle tire so that the aerodynamic bicycle rim and the bicycle tire form an asymmetrical cross-sectional shape.

The utility model provides a wave hub, a wheel and a bicycle, wherein the wave hub comprises a wheel rim and a spoke connecting a hub and the wheel rim, wherein the wheel rim comprises an outer wheel tire mounting portion for mounting a tire, an inner wheel spoke connecting portion for connecting the spoke, and two wheel rim side walls relatively arranged between the outer wheel tire mounting portion and the inner wheel spoke connecting portion, wherein the wheel rim is provided with a plurality of wheel rim wave shapes, wherein the wheel rim wave shapes extend from the inner wheel spoke connecting portion to the two wheel rim side walls; and the wheel spokes are provided with a plurality of wheel spoke wave shapes. The wheel rim wave shape can guide the flow direction of airflow, reduce the wind resistance coefficient of the wheel rim, and provide a better aerodynamic effect; and the waves on the side of the wheel rim are equivalent to an arch, which increases the side deformation resistance, and the side rigidity of the wheel rim is also improved; the wheel spoke wave shape can reduce the wind resistance of the wheel spoke, thereby reducing the overall wind resistance of the wave hub.

An aerodynamic bicycle rim comprising: a circumferential outer portion comprising a circumferential outer surface, the circumferential outer portion adapted to seat a bicycle tire; a nose; and a set of sidewalls, each sidewall extending radially from the nose of the aerodynamic bicycle rim to a corresponding transition to the circumferential outer surface to form a rim body having a maximum rim body width that is greater than a maximum width of the bicycle tire. The aerodynamic bicycle rim is operable to seat the bicycle tire so that the aerodynamic bicycle rim and the bicycle tire form an asymmetrical cross-sectional shape.

The invention discloses an aluminum alloy hub spinning die cooling device and method, and relates to the technical field of hub machining. The device comprises a bottom plate, a double-rotor linear motor module is fixedly connected to the top of the bottom plate, supporting frames are fixedly connected to the tops of the two driving ends of the double-rotor linear motor module, and adjusters are fixedly connected to the side faces of the supporting frames. Through cooperation of the roller, the rotating notch ring, the adjusting block, the supporting J-shaped block, the supporting sliding block, the elastic roller, the pressure meter and the plug pin, when the surface of the roller cracks or peels off, the elastic roller can drive the supporting sliding block to apply pressure to the detection end of the pressure meter, and whether the surface of the roller cracks or peels off or not can be obtained by observing the numerical value of the pressure meter; therefore, the situation that the size and the shape of a hub deviate due to uneven pressure distribution on a hub blank caused by an irregular contact surface generated by cracks or peeling of the surface of the roller and the hub is avoided.

The invention discloses a wheel rolling mill guide roller assembly, and belongs to the technical field of steel wheel manufacturing, the wheel rolling mill guide roller assembly comprises a guide sleeve, a guide shaft arranged in the guide sleeve in a penetrating manner, and guide plates fixedly arranged at the inner end of the guide shaft, the two guide plates are obliquely and symmetrically arranged, and sliding blocks are arranged on the inner side faces of the guide plates in the vertical direction in a sliding manner; the upper end faces of the sliding blocks are rotationally connected with guide rollers. When the wheel hot rolling device is used, the tread of a wheel is in contact with the sensing device when the wheel is subjected to hot rolling; the thickness of the wheel is reduced, so that the diameter of the wheel is increased, the diameter of the wheel is increased, the stepping face of the wheel presses the induction device downwards, the induction device moves downwards to drive the two sliding blocks to move downwards, the two sliding blocks slide downwards along the inclined face of the guide plate, and meanwhile the two sliding blocks move close to each other; and then the two guide rollers are driven to move towards the middle so as to compensate gaps between the guide rollers with the thinned wheel thickness and the side faces of the wheels, and clamping of the guide rollers to the side faces of the wheels is kept.

The invention discloses a bicycle rim and a manufacturing method thereof.The bicycle rim comprises an annular rim body, and the rim body comprises a U-shaped supporting part, a connecting part connected with the two ends of the supporting part and two bead beads arranged at the two ends of the outer side of the connecting part respectively; a semi-closed tire groove used for installing a tire is defined by the connecting part and the two tire beads, the width of each tire bead is 5-10 mm, and the tire beads are provided with lightening holes. According to the bicycle rim and the manufacturing method thereof, the width of the bead of the rim is increased, so that riding resistance can be reduced for a road ring, wind resistance can be reduced for a mountain ring, and the problem of tire biting can be effectively reduced; the lightening holes are formed in the bead position, so that the width of the bead is increased, and the self weight of the rim is basically unchanged; the hollow pipe is pre-buried in the bead and integrally formed with the rim, the lightening hole structure is obtained, the conception is ingenious, and the problem that the dead weight of an existing bicycle rim is increased due to the fact that the bead width is increased is effectively solved.

The utility model discloses a carbon fiber composite reinforced electric automobile hub which comprises a hub body, the hub body comprises a rim, the left side and the right side of the rim are respectively provided with a front wheel flange and a rear wheel flange, and the front wheel flange and the rear wheel flange are respectively provided with a wheel flange groove. Grid patterns are pressed in the rim groove, and a composite layer integrally formed with the hub body is arranged in the rim groove. The composite layer comprises gridding cloth and liquid glue, and the surface of the composite layer is flush with the surface of the rim; a plurality of strip-shaped grooves which are uniformly and annularly distributed are formed in the front surface of the hub body, and two polygonal grooves which are symmetrically formed are formed between any two strip-shaped grooves; the polygonal grooves are evenly and annularly distributed along the hub body and are arranged in a bilateral symmetry mode. The rim groove is formed in the rim of the hub body, and the composite layer integrally formed with the hub body is arranged in the rim groove, so that the structural strength is higher; and a plurality of grooves are formed in the hub body, so that the overall mass is lighter.

The invention relates to the technical field of hub machining, in particular to a hub blank process control system and method.The hub blank process control system comprises a temperature measuring assembly used for sequentially detecting the surface temperature of rims of N hub blanks, and N is a positive integer larger than 1; the heating equipment is used for heating the rim when the surface temperature of the rim is lower than the target temperature; the spinning equipment is used for spinning the rim when the surface temperature of the rim is greater than or equal to the target temperature; the manipulator is used for taking and placing the hub blank from the heating equipment or the spinning equipment; and the control device is configured to control the sum of the time of heating the rim of the (i + 1) th hub blank by the heating equipment and the time of taking and placing the hub blank by the manipulator to be smaller than or equal to the rhythm of spinning the rim of the ith hub blank by the spinning equipment. The surface temperature and the heating time of the rim of the hub blank can be accurately controlled, energy is saved to the maximum extent, consumption is reduced, and preheating energy consumption is reduced.

A bicycle includes a frame, a seat, and at least one wheel rim. The rim includes a main body, and a first flange and a second flange extending from the main body for supporting a tire. A ratio of a first flange width to a flange spacing is at least 0.14. A ratio of an inner corner radius to the first flange width is preferably at most 0.5. A ratio of the first flange width to a first flange height is at least 0.75. The main body includes a cavity having a radial projection that is spaced from a radial projection of the first flange projection by a gap that is at least 10% of the first flange width. The main body further includes a nose section and a first sidewall connecting the nose section to the first flange, wherein the first sidewall includes a first concave outer surface.

The invention discloses an automobile hub capable of reducing wind resistance, and relates to the technical field of automobile hubs, the automobile hub comprises a hub body, the hub body comprises a rim, a wheel disc and spokes, a sealing part is arranged in the rim, the sealing part is arranged on the outer side of the wheel disc, and the sealing part is used for sealing a cavity of the rim to reduce the wind resistance of the rim during running. The sealing piece comprises an outer plate and an inner plate, and the outer plate is fixed to the outer side of the spoke. The invention aims to solve the problems that in the prior art, a cavity of an automobile hub is generally open, but the open hub cavity can be impacted by airflow when an automobile runs at a high speed, an internal cavity can form vortex or turbulent flow, aerodynamic resistance is increased, energy consumption is increased and the like. Compared with the prior art, the wheel hub has the advantages that the sealing piece capable of being opened and closed is arranged on the surface of the wheel hub, so that the sealing piece can seal the cavity and reduce aerodynamic resistance during high-speed driving, and the sealing piece can be opened and improve heat dissipation during braking.

A wheel disc for vehicle wheels manufactured by flow forming, in particular for passenger cars, which has a stretched disc transition surface subsequently provided with ventilation holes and a radial outer disc edge. All ventilation holes are located in the transition surface and are attached by punching or cutting. In order to improve the competitiveness of vehicle wheels made of steel or other materials suitable in particular for cold forming compared to cast vehicle wheels made of aluminium, the transition surface is provided with several changes in material thickness generated during flow forming by displacement of the tool and, viewed in the radial direction, effecting a wave structure on the surface facing the tool during flow forming. The surface provided with the wave structure can in particular form the non-visible inner side of a vehicle wheel, but can also form the visible side. In addition, the opposite surface can also be provided with a wave structure.

The invention relates to automatic feeding and rolling preforming equipment for friction ring production, which comprises a bearing frame body and a conveying mechanism arranged on the surface of the bearing frame body, a profile forming mechanism formed in a rolling mode is further arranged on the outer side of the bearing frame body, and a profile traction mechanism is further arranged on the bearing frame body. A roller in the sectional material traction mechanism is used for pulling and pushing the sectional material conveyed by the conveying mechanism into the sectional material forming mechanism; the problem that automatic and continuous machining of long profiles is difficult to achieve in the friction ring production process is solved. By integrating the conveying mechanism, the traction mechanism and the forming mechanism, the problems that in a traditional mode, manual intervention is much, the positioning precision is poor, the surface is prone to being scratched, and section bars of different specifications cannot be flexibly adapted are solved, and efficient, precise and integrated operation in the whole process from feeding to edge rolling preforming is achieved.

The utility model relates to a flexible rim, a half-height rim hub and an assembly of the flexible rim and the half-height rim hub. The vertical edge structure of the flexible rim is provided with a special wall thickness and a convex inverted buckle structure, and can extend to a tire bead seat; the half-height rim is provided with a groove back-off and knurling structure; the flexible wheel flange and the hub assembly are matched in an inverted buckling mode and fixed through adhesive, the flexible wheel flange is made of specific components such as TPEE, and the material cost is low. The half-height rim is provided with the hollow structure through extrusion molding and then is welded into the closed ring, the production efficiency is high, and the production cost is low. According to the utility model, the reverse buckle is used for preventing falling off, increasing friction, buffering impact through a hollow structure, protecting the rim through a specific material, and ensuring braking safety through knurling; the flexible rim is good in color and luster, good in texture and more beautiful in appearance; meanwhile, after the tire is inflated, the assembly meets the GB / T 3487 boundary dimension standard, and popularization is convenient.

The application discloses a hollow noise-reducing light-weight hub and a hub mold, which comprise a rim and spokes, the rim is provided with an outer window and a gas port, a hollow cavity is arranged in the rim, the hollow cavity is provided with a first aperture at the outer window and a second aperture at the gas port, and a third aperture is arranged on the back side of the spoke; the above structure makes the wall thickness of the rim uniform, casting defects are not easy to occur, noise can be reduced, the hub can be lightened, and the weight of the hub is lighter than that of an existing hub; the mold comprises a lower mold, a sand core and an upper mold; the lower mold is provided with a boss portion and a groove portion, the boss portion is provided with a first recess and a second recess; the main body of the sand core is provided with a first convex portion and a second convex portion; the upper mold is press-fitted on the sand core, the bottom of the upper mold is provided with an arc pressing portion, the arc pressing portion is arranged above the groove portion, the arc pressing portion is in contact with the top surface of the boss portion, the lower mold, the sand core and the upper mold are assembled and fixed, and product casting is completed.

The invention relates to the technical field of automobile part structures, in particular to a front suspension hub motor wheel edge integrated structure, an assembling method and an automobile. Comprising a rim, a hub motor, a front suspension and a brake, and the rim is of a hollow annular structure; the hub motor is located on the inner side of the rim and comprises an outer rotor shell fixed to the end, away from the vehicle body, of the rim and a stator shell arranged on the outer rotor shell. One end, close to a vehicle body, of the stator shell is positioned on the axial inner side of a rim; the front suspension comprises a steering knuckle fixedly connected with the end, close to a vehicle body, of the stator shell. The brake comprises brake calipers fixedly connected with the steering knuckle and a brake disc connected with the end, close to a vehicle body, of the outer rotor shell. According to the front suspension hub motor wheel edge integration structure, the hub motor is completely integrated in the rim, enough assembly space is reserved for the wheel edge, arrangement of a front suspension and a pipeline is facilitated, meanwhile, a plurality of connectors are reserved, and assembly of the front suspension and the pipeline is greatly facilitated.

The invention discloses an articulated nipple (1) for the fixation of a bicycle spoke (R) comprising an elongated body (2) and a washer (3). The body (2) comprises a radial protrusion (22) that protrudes radially therefrom, and the washer (3) comprises a radially inner face (31) conforming a radial cavity. Thus, the protrusion (22) is housed inside the radial cavity to conform an articulated connection between the washer (3) and the body (2). This articulated connection allows for the body (2) to rotate an angle (α) with respect to the washer (3) around an axis that is perpendicular to the longitudinal axis (ELA) of the washer (3).

Sensor modules mountable on a wheel are described with methods of use. A sensor module for a wheel includes a base module mountable to a rim. The sensor module further includes a first set of piezoelectric sensors coupled to the base module at a first side and a second set of piezoelectric sensors coupled to the base module at a second side. A method includes receiving a first force from a tire on a piezoelectric sensor mounted on a rim, the force resulting from an inflation of the tire and causing a first strain on the sensor. The method further includes receiving a second force on the sensor corresponding to a deformation of the tire due to surface contact, where the second force causes a second strain. The method also includes generating wheel data from electrical signals produced by the sensor; and transmitting the wheel data to a remote device.

A system and a vehicle (110) for providing a required ground clearance include adjustable wheels (120), fenders (130) integrated into a body of the vehicle (110), and a controller (104) for controlling the size of the adjustable wheels (120) and the movement of the fenders (130). Each adjustable wheel (120) is configured to change its roll radius. The fenders (130) include a plurality of fender segments (132) arranged side by side along an arc of the corresponding fender (130). Based on a change in the roll radius of the wheel (120), the fender segments (132) move radially inward away from the corresponding wheel (120) and outward toward the corresponding wheel (120), maintaining a predefined distance between the fender segments (132) and an outer circumference of the wheel (120).

A bicycle wheel assembly structure includes an annular rim, a hub, nipples, and spokes. The annular rim includes multiple rim penetration sections, each of which includes a rim-side limiting part on a circumference. The hub is arranged at the center of the annular rim. The hub includes multiple hub penetration sections. The rim-side limiting part and the nipple limiting part, and also the hub-side limiting part and the spoke limiting part, are all made in a hexagonal pyramid form with apex truncated to form a planar surface and including bevel facets so as to provide an anti-sliding effect resulting from geometric constraint and high static friction at both the annular rim-side and the hub-side. The angle of the hexagonal pyramid of the nipple limiting part is 60°, 90°, or 120°, and an optimum arrangement can be made based on the material elongation of the spokes and the desired tension.

The invention discloses a novel multi-air-chamber wheel which comprises a tire and a rim, the tire is a multi-air-chamber tubeless tire and is composed of a plurality of air chambers arranged in the axial direction, each air chamber is provided with an isolation ring so that each air chamber can form a relatively-closed space, the rim is composed of a rim and a spoke, and the rim and the spoke are arranged in a staggered mode. The rim part is designed to be of a concave air storage structure in the radial direction; the concave air storage structure and the isolation ring form a relatively closed air storage chamber, an air inlet valve and an exhaust valve are installed on the isolation ring, and when the pressure in the tire air chamber exceeds a set opening value, the air chamber exhaust valve automatically exhausts air and relieves pressure. According to the utility model, other intact tire air chambers can be ensured to continuously run when one tire air chamber leaks or bursts, so that the safety of a vehicle is protected. Besides, in the running process of the vehicle, when part of the air chambers exceed the safety pressure value due to the conditions of overweight, jolting, pit passing, high temperature and the like, all the air chambers can automatically exhaust and relieve pressure towards the concave air storage structure through the exhaust valves, and tire burst caused by overlarge pressure in the air chambers is avoided.

A wheel component for bicycles, comprising a straight spoke (10) with a center piece (11) and two end pieces (20, 30) for detachably connecting a hub (108) to a rim (109). At least one of the end pieces (30) comprises a threaded portion (31). The threaded portion (31) is formed integrally with the end piece (20, 30). The spoke is designed without loops and eyelets. The spoke can be supported on a hub (108) and a rim (109) by means of the end pieces (20). The spoke (10) is made of a fiber composite material (2) and comprises a matrix material (3) and reinforcing elements (4) embedded therein. The end pieces (20, 30) are formed integrally with the center piece (11) and each form an end (16, 17) of the spoke (10).At least some of the reinforcing elements (4) are formed as long fibers (5) and extend completely through the central piece (11) and over at least a substantial portion of each of the two end pieces (20, 30). At least one end piece (20, 30) has a cross-sectional area (25, 35) with long fibers (5) embedded therein as reinforcing elements (4) and at least one cross-sectional section (26, 36) without any long fibers (5) embedded therein.

The utility model relates to the technical field of automobile accessories, in particular to a steel-aluminum wheel which comprises a rim, a spoke and a fixing piece. The spoke is provided with a connecting part, the connecting part is arranged between the spoke and the rim, the connecting part is provided with a connecting groove, a connecting ring is correspondingly installed on a rim of the rim, and the connecting ring is assembled in the connecting groove. And the fixing piece sequentially penetrates through the rim and the connecting part so as to fix the rim and the spoke. According to the steel-aluminum wheel, a connecting piece does not need to be embedded in the aluminum spoke, the connecting structure that the connecting ring is in interference fit with the connecting groove is more stable, and the fixing piece sequentially penetrates through the rim and the connecting part to fix the rim and the connecting part, so that the situation that the service life of a welding seam area is short is prevented, the effect of improving the product quality is achieved, and the production cost is reduced. The wheel performance can be effectively improved; and the service life of the wheel is prolonged.

The present disclosure discloses a carbon fiber bicycle rim and a manufacturing method thereof. The carbon fiber bicycle rim comprises a ring-shaped rim body, which is integrally formed from carbon fiber. The rim body comprises an outer ring wall, an inner ring wall, and two side walls that connect the outer ring wall with the inner ring wall. The outer ring wall has an outer side that forms a semi-closed tire groove and an inner side that encloses together with the inner ring wall and the side walls to form a closed cavity. Connecting portions are arranged in the cavity. The connecting portions have one end that is connected to the outer ring wall and the other end that is connected to the side walls. The connecting portions enclose together with the outer ring wall and the side walls to form hollow channels.

A bicycle wheel comprises a rim including a radially inner portion disposed along an inner circumference of the rim, a first sidewall, and a second sidewall spaced apart from the first sidewall. The first sidewall and the second sidewall extends radially outward from the radially inner portion. A radially outer tire engaging portion is disposed along an outer circumference of the rim. A receptacle is within the radially inner portion. A sensor device comprises a housing disposed within the receptacle such that a portion of the housing forms part of the radially inner portion of the rim and a pressure sensor supported by the housing. An air valve extends through and is supported by the housing. The pressure sensor is fluidly connected to a volume between a first tire retaining portion and a second tire retaining portion of the radially outer tire engaging portion such that the pressure sensor is configured to determine a pressure of a fluid within the volume. The wheel includes a hub attachable to a bicycle frame and a plurality of spokes arranged between the hub and the rim.

The stamping device comprises a pedestal, a bearing frame and an automatic pressing and locking mechanism, a main moving frame is arranged on a guide rod in the bearing frame through driving of a first hydraulic cylinder to horizontally slide in a reciprocating mode, and an auxiliary moving frame is arranged in the middle of the main moving frame through driving of a second hydraulic cylinder to vertically slide in a reciprocating mode; the automatic pressing and locking mechanism drives the top mold fixed on the automatic pressing and locking mechanism to form a rotating structure on the transverse frame body in the auxiliary moving frame, and the automatic pressing and locking mechanism is matched with the top mold to automatically pick and fix a spoke center opening in the hub casting part in a pressing and locking mode and drives the hub casting part to be directly in butt joint with the bottom mold to be positioned and fixed in the discharging process. According to the stamping device for casting post-processing, the hub casting is automatically picked up and fixed in a pressing and locking mode, rim deformation or scratching in the hub casting is avoided, in addition, when the rim is pushed and demolded, spoke lifting and demolding are synchronously conducted, and it is guaranteed that the rim and the spoke are evenly stressed in the demolding process.

The invention discloses a wheel rolling mill synchronous centering mechanism, and belongs to the technical field of steel wheel rolling mills, the wheel rolling mill synchronous centering mechanism comprises a main roller assembly slidably arranged in a mounting groove of a machine body in the left-right direction and centering roller assemblies symmetrically arranged relative to the main roller assembly in the up-down direction, and the two centering roller assemblies are both hinged to the machine body; a driving part is arranged on the main roller assembly and used for driving the left ends of the two centering roller assemblies to rotate at the same time when the main roller assembly moves rightwards, and then the right ends of the two centering roller assemblies and the right end of the main roller assembly synchronously move inwards. When the device is used, a wheel is placed between the right ends of the two centering roller assemblies and the right end of the main roller assembly through the mechanical arm, and then the main roller assembly is driven by the main hydraulic telescopic rod to move rightwards; the purpose that the right end of the main roller assembly and the right ends of the two centering roller assemblies synchronously move inwards to clamp the tread of the wheel is achieved, then friction is conducted on the inner edge of the wheel through the radial plate roller assembly to drive the wheel to rotate, and meanwhile retreating force is generated at the position, making contact with the inner edge of the wheel, of the radial plate roller assembly. A spoke expanding effect is generated on the inner edge of the wheel; and meanwhile, the contact force between the tread of the wheel and the main roller is increased all the time, and the rotating stability of the wheel is guaranteed.

The present application relates to the technical field of automobile wheel hub die, in particular to a wheel hub spinning die, comprising: a lower die assembly and a pressing plate (9) for pressing a wheel hub casting on the lower die assembly; the pressing plate (9) has a spoke top pressing surface for pressing spokes in the wheel hub casting. The present application provides a wheel hub spinning die which can press the casting and will not cause deformation of the spokes of the casting.

The utility model relates to the technical field of tunnel engineering, in particular to a shield tunneling machine trolley rubber coating wheel structure which comprises a wheel assembly, the wheel assembly comprises a wheel body and a wheel box, the wheel box comprises a base frame, a wheel shaft, two limiting rings and two installation plates fixed to the two ends of the base frame respectively, and the wheel shaft is connected between the two installation plates. The wheel body is rotatably arranged on the wheel shaft in a sleeved mode, the rubber rings are arranged on the wheel body side by side in a sleeved mode, the two limiting rings are detachably fixed to the two ends of the wheel body and block the rubber rings, and deformation spaces used for containing the compression deformation amount of the rubber rings are formed between the limiting rings and the rubber rings. The shield machine trolley solves the technical problems that rubber wheels of a shield machine trolley in the prior art are prone to stripping and rubber rings fall off, reduces damage of the rubber coating wheels, prolongs the service life of the rubber coating wheels, achieves the rotating obstacle crossing function of the front rubber coating wheel and the rear rubber coating wheel through a semi-hinged structure of the hinged seat and the hinged arc plate, and improves the engineering adaptability of a walking mechanism.