19results about "Rotary transmissions" patented technology

A human-electric hybrid powertrain with a continuously variable transmission achieved with the use of a bevel planetary gearset. Two electric motors are utilized to produce a hybrid powertrain with either a driveshaft, chain, or belt driveline. The electric motors combine to produce an infinitely variable range of gear ratios and power assistance to the operator.

The tricycle has a front chassis (1), a rear chassis (2) and a transmission mechanism, the front chassis (1) is connected to the rear chassis (2) by a swing mechanism (3), the transmission mechanism includes a first torque output assembly (4) provided on the front chassis (1) and a second torque output assembly (5) provided on the rear chassis, the first torque output assembly (4) transmits torque to the second torque output assembly (5) by a transmission shaft (6), and the second torque output assembly (5) is interlockingly engaged with at least one of two rear wheels (72). The tricycle solves the problem of low transmission reliability in the prior art, which occurs when swinging occurs between the front and rear chassis, because the transmission system needs to swing along with the chassis, and also solves the problem of the prior art, which is that the chain is easily dislodged due to swinging or vibration, which affects the riding experience and ultimately affects safety.

A drive system comprising a drive shaft (21) and a chainring (1), wherein the drive shaft (21) has a splined interface (22) for attaching the chainring (1) in a rotationally fixed manner. The drive system has an annular adapter (2) having a radially inner surface with an interface (20) engaging the splined interface (22) of the drive shaft (21) and a radially outer region with at least one first connecting element, wherein the chainring (1) has at least one second connecting element configured to engage the first connecting element, wherein the drive system comprises a first annular adapter (2) with a first axial extension defining a first axial distance between the interface (20) and the first connecting element and a second annular adapter with a second axial extension defining a second axial distance between the interface (20) and the first connecting element.

The invention discloses a hand-pulled recreational vehicle. The hand-pulled recreational vehicle comprises a front wheel assembly, a rear wheel assembly, a steering mechanism, a pull wire driving mechanism, pedals and a seat. The hand-pulled recreational vehicle can obtain high speed by adopting the pull wire driving mechanism, so that the hand-pulled recreational vehicle can be used for exercise and fitness, can also be used for entertainment, and can also be used as a short-distance transportation means for riding instead of walk. The hand-pulled recreational vehicle obtains a brand new experience in the aspects of motility, interestingness, entertainment and irritation.

The invention provides an electric motorcycle which comprises a supporting frame, a driving assembly, a first transmission assembly and a second transmission assembly, and a front wheel and a rear wheel are rotationally arranged on the supporting frame; the driving assembly is connected with the supporting frame and located between the front wheel and the rear wheel. The driving assembly is in driving connection with the input end of the first transmission assembly; the output end of the first transmission assembly is connected with the input end of the second transmission assembly, and the output end of the second transmission assembly is connected with a hub of the rear wheel. The first transmission assembly comprises a transmission shaft and two universal joints located at the two axial ends of the transmission shaft. The problems that a chain transmission system in the prior art has periodic impact and non-uniform linear speed, obvious vibration and high-frequency noise are easily caused under the high-speed or high-load working condition, and the riding comfort is reduced are solved.

Provided is a tricycle including: a tricycle body having a first frame pivoted to a second frame, the first frame having a crank, at least one wheel shaft being rotatably arranged on the second frame; a first linkage assembly arranged on the first frame, the first linkage assembly having a first chain sleeving a first and a second chain wheels, the first chain wheel being coupled to the crank; a second linkage assembly arranged on the second frame, the second linkage assembly having a second chain sleeving a third and a fourth chain wheels, and the fourth chain wheel being coupled to the wheel shaft; and a transmission module having a first and a second universal joints connected to two ends of a telescopic cylinder respectively, the first universal joint being connected to the second chain wheel, and the second universal joint being connected to the third chain wheel.

A swingable shaft transmission tricycle comprises a front frame, a rear frame and a transmission mechanism, the front frame is connected with the rear frame through a swing mechanism, the transmission mechanism comprises a first torque output assembly arranged on the front frame and a second torque output assembly arranged on the rear frame, the first torque output assembly transmits torque to the second torque output assembly through a transmission shaft, and the second torque output assembly is connected with at least one of two rear wheels. The swingable shaft transmission tricycle provided by the application has the following advantages compared with the prior art: the problem that the transmission system needs to swing with the frame when the front frame and the rear frame swing in the prior art, resulting in poor transmission reliability, is solved; secondly, the problem that the chain is easily detached due to bumps and vibrations in the prior art, affecting the riding experience and even safety, is solved.

The utility model relates to the field of mechanical parts, in particular to a tricycle and motorcycle shaft forked piece type extrusion and warm forging piece which is high in production efficiency and comprises a forked piece, and two forked holes are symmetrically formed in the forked piece. And one end of the single-head shaft and the middle part of the forked piece are integrally formed. According to the scheme, the forked part and the single-head shaft are integrally formed, when the follow-up finish machining step of the forked part and the single-head shaft is carried out subsequently, the forked part and the single-head shaft can be carried out synchronously, and the machining period needed for machining the forked part and the single-head shaft separately is shortened; and meanwhile, the forked piece and the single-head shaft do not need to be welded, so that the steps and the period required by welding are reduced, and the machining cost is reduced.

The utility model discloses an all-terrain vehicle. The all-terrain vehicle comprises a vehicle frame, a walking system, a power assembly and a transmission mechanism. The transmission mechanism comprises a drive axle and a transmission shaft assembly, the drive axle is in transmission connection with the engine through the transmission shaft assembly, and the drive axle is further in transmission connection with the walking system. The engine comprises an output shaft in transmission connection with the transmission shaft assembly. The drive axle comprises an input shaft in transmission connection with the transmission shaft assembly. The transmission shaft assembly comprises a first connecting piece, a second connecting piece, a first shaft body and a second shaft body, the first connecting piece is movably connected to one end of the first shaft body, and the second connecting piece is movably connected to one end of the second shaft body; the first connecting piece is provided with a groove body and an adjusting piece, the adjusting piece is provided with a gap communicated with the groove body, and the adjusting piece can adjust the gap to fix the position of the output shaft relative to the groove body so as to adjust the range of the included angle formed by the preset straight line and the datum plane. Through the arrangement, the service life of the transmission shaft assembly can be prolonged.

A power module of an electric assisted bicycle is disclosed and includes a pedal shaft, a housing, a motor, a reducer, a gear-plate-output shaft, a pedal-shaft first two-way bearing and an encoder component. The housing includes a partition portion extended along a radial direction to divide the housing into a motor accommodation portion and a reducer accommodation portion, respectively. The pedal shaft is disposed in the housing and passes through an end cap of the housing along an axial direction. An extension portion of the reducer is extended toward the end cap and connected to a supporting portion of the end cap through an input-shaft rear bearing. The supporting portion, the input-shaft rear bearing and the extension portion are sleeved from inside of an inner space of the housing to outside along the radial direction sequentially, so that facilitates axial directional configuration of the encoder component and increases usage space.

The invention provides a continuously variable transmission drive system (1) comprising a central friction drive disk (27); two rollers (159; 203) clamped against two opposite sides (30) of the drive disk (27) with their outer rims (169; 205) in friction-drive contact with drive disk (27) and being movable across the disk radius to alter the gear ratio; an input drive shaft (15) connected to the rollers (159; 203) for driving the rollers (159; 203); and a hinged clamping assembly (21; 23) which is associated with the drive shaft (15) and configured for forcibly clamping the two rollers (159; 203) around the drive disk (27) with a variable clamping force that is proportional to the input torque on drive shaft (15).

electric motorcycle in which a battery (60) is arranged in a position behind a handlebar (15) and in front of a seat (14), wherein a drive motor (11) is arranged under the seat (14), the drive motor (11) is arranged further forward than a rear end (30) of a frame (25, 25) which connects a head tube (23) and a turntable (21, 21) and is supported by a vehicle body frame (10) in a position overlapping the frame (25, 25) in a vehicle side view, the turntable (21, 21) extends downwards from the rear end parts of the frame (25, 25), and a lower part of a rocker arm (13) is supported by a mounting section (21a, 21a) provided in the turntable (21, 21), wherein a drive shaft (43) which transmits a drive force output by the drive motor (11) to a wheel (3) is supported by the rocker arm (13).

The invention refers to a device for increasing the efficiency of any rotary power generating system with progressive variation, whose planetary system may have two or more pairs of pinions, or / and satellites with any multiplication / demultiplication ratio with respect to the central pinion, characterized in that it consists of an assembled inner box, A, which is assembled axially in an assembled outer box, B, to which an assembled side box is axially fixed, C; assembled inner box, A, made of a primary drive shaft, (1), having a flange, by means of which the shaft is oriented and fixed on a cover, (2), in which, axially, is assembled a bearing, (3), and radially, in some bosses, a, processed cylindrically, are fixedly assembled some bearings, (4), in which, with a shoulder, conventionally right, son satellites, (15), are assembled, each of which, on a median shoulder, has assembled a bearing, (4′); axially, in the bearing, (3), is assembled an intermediate pinion, (6), which, to the left of its toothed crown, has assembled a second bearing, (18); in some bearings, (19), (FIG. 4) which are fixed in the cover, (2), are assembled some pinions, (14), which mesh both with the pinions, (15), and with the toothed crown of the intermediate pinion, (6); on the cover, (2), and oriented on the bearings, (4′), (18) and (19), is centered an intermediate cover, (5), which is firmly fixed to the cover, (2), by some screws, (13); on the cover, (5), being oriented and fixed a cylindrical wall, (20); on the conventional left side of each pinion, (15), one eccentric, (16), is fixed rigidly (FIG. 1, FIG. 4, FIG. 5, FIG. 6); after each eccentric, (16), on each pinion, (15), a bearing, (4″), is assembled; on each bearing, (4″), it is oriented, and on the cylindrical wall, (20), is oriented and fixed another cover, (21), in the center of which is assembled a bearing, (22), through which the intermediate pinion, (6), slides; assembled box, B, consisting of a cover, (23), oriented by means of a bearing, (24), on the primary motor shaft, (1), from the assembled inner box, A, cover, (23), on which it is oriented and fixed by means of screws, (25), with the conventionally right surface, an external cylindrical wall, (26), from which, on its conventionally left surface, a cover, (27), is oriented and fixed, by means of screws, (28); cover, (27), which is oriented by means of a bearing, (29), on the primary motor shaft, (1), and which, radially, has some bearings, (35), assembled; a spacer, (30), is interposed between the bearing, (22), and the bearing, (29), on the primary drive shaft, (1); after the bearing, (29), another spacer is assembled, (31), after which a unidirectional bearing, (7), then another spacer, (32), is assembled; assembled side box, C, consisting of a side cover, (36), provided with an axial hole, e, in which is mounted a bearing, (34), in which is assembled the output shaft, c, of a pinion, (11), in which a one-way bearing, (12), which works in the opposite direction to the one-way bearing, (7), is fixedly assembled; radially, on the same diameter on which the bearings are arranged, (35), but in the mirror, inside the side cover, (36), in some bosses, d, are mounted some bearings, (35′), in which are assembled some intermediate pinions, (9), which engages with third pinions, (10), also assembled in some bearings, (37), not shown in the figure, fixed radially in the side cover, (36); this assembled side box, C, is oriented, by means of the bearing, (12), assembled in the pinion, (11), on the primary motor shaft, (1), and, by means of the intermediate pinions, (9), in the bearings, (35), and, by means of the third pinions, (10), in some bearings, (37′), assembled in the cover, (27), and fixed to the cover, (27), by means of screws, (38).

The utility model discloses a chainless bicycle transmission shaft which comprises a transmission shaft assembly which is installed in an integral free detachable mode, the transmission shaft assembly comprises an assembly shell, a front transmission gear assembly and a rear transmission gear assembly, the front transmission gear assembly and the rear transmission gear assembly are in transmission connection through the transmission shaft assembly, and a hollow cavity is formed in the front transmission gear assembly. And the hollow cavity is matched with a driving piece in the middle of the bicycle. According to the chainless bicycle transmission shaft, the transmission shaft assembly can be directly arranged on the middle driving piece of the bicycle in a sleeving mode, the rear transmission gear assembly is directly arranged on the axle of the rear wheel, and therefore the transmission shaft assembly can be rapidly installed and conveniently disassembled, and the transmission shaft assembly can be suitable for various types of bicycles; and the free integral disassembly and assembly of the transmission shaft assembly are realized. The problem that an existing transmission shaft cannot be freely detached and integrally installed on a middle shaft and a middle gearbox of a bicycle is effectively solved.

The power transmission (100) for vehicles comprises a driving assembly (10a; 10b) for rotating a driving bevel gear (20) and a transmission shaft (30) having a first driven bevel gear (40) engaging with the driving bevel gear (20) and a second driven bevel gear (50) engaging with a third driven bevel gear (60) for rotating a driven shaft (70). A transmission assembly (80, 85) includes a first transmission plate (80) attached to the driving bevel gear (20) and the driving assembly (10a; 10b), and a second transmission plate (85) attached to the third driven bevel gear (60) and the driven shaft (70). The gears (20, 40, 50, 60) are made of a polymeric material.

An inner variable-speed hub with a built-in electric motor, the hub comprising: an electric motor module (8), an input member (3), an output member (1) and a mandrel (4), wherein the mandrel (4) is fixed to a frame; and the electric motor module (8) is mounted on the mandrel (4) and is used for outputting a torque to the output member (1). The hub further comprises a transmission mechanism (7), a driving mechanism (5) and a gear shifting control mechanism (6), wherein the driving mechanism (5), the gear shifting control mechanism (6) and the transmission mechanism (7) are sequentially connected to each other and are all mounted on the mandrel (4); the input member (3) is fixedly connected to the transmission mechanism (7), and is used for inputting the torque into the transmission mechanism (7); the output member (1) is connected to the transmission mechanism (7), and is used for outputting the torque to a wheel; the transmission mechanism (7) has at least two transmission ratios; the driving mechanism (5) drives, in a manual and / or automatic manner, the gear shifting control mechanism (6) to rotate to a specific angle, so as to change transmission relationships between components in the transmission mechanism (7), thereby changing the transmission ratios of the transmission mechanism (7). The inner variable-speed hub has two modes, i.e., a manual variable-speed mode and an automatic variable-speed mode, and an electric motor is used for providing assisting power, such that riding is easier and more convenient. Further comprised are a bicycle and a gear shifting control method.

The utility model provides an anti-impact bicycle variable-speed main shaft subjected to carburizing step quenching treatment, and belongs to the technical field of bicycle equipment. Comprising a spindle body; the key groove is formed in the main shaft body, and the key groove is used for providing an installation position of a key; the screw rod is rotationally arranged in the main shaft body, and the center line of the screw rod in the length direction coincides with the center line of the main shaft body in the length direction; and the supporting sleeve is arranged in the main shaft body in a sliding manner, and the supporting sleeve is in threaded connection with the screw rod. Through cooperation of the key groove, the screw rod, the supporting sleeve, the sliding block, the inclined block, the auxiliary block, the positioning block and other structures, the bicycle speed change main shaft can be disassembled conveniently and efficiently, and by means of the synergistic effect of the spring, the positioning block, the auxiliary block, the inclined block, the sliding block and other structures, the purpose that the screw rod is prevented from rotating accidentally when the main shaft body works is achieved.

The utility model relates to a mounting structure for a swing arm of a rear fork of a motorcycle, which is characterized in that a mounting seat is arranged on a box body of an engine assembly, and an output shaft of an engine is rotatably mounted on the mounting seat; shaft sleeves are respectively fixed on the left side and the right side of the mounting seat, and the shaft sleeves and the output shaft on the mounting seat are coaxially arranged; the first end of the rear bottom fork is rotatably mounted on the shaft sleeve, and the rear wheel shaft is mounted at the second end of the rear bottom fork; after installation is completed, the output shaft penetrates out of the shaft hole of at least one shaft sleeve, the rear fork on the same side is rotatably installed on the outer side of the shaft sleeve, and an installation gap exists between the output shaft and the shaft sleeve on the same side in the radial direction of the output shaft. According to the scheme, it can be guaranteed that the fit clearance between the chain (transmission belt) and the chain wheel is constant, and the transmission and riding stability is guaranteed.