Muscular wheel drive vehicle

 

(57) Abstract:

Use of invention: in the field of velosipedistiem. The invention is in that to create muscle actuator, providing full use of the traction force due to the optimum placement of the actuator on the frame and perform its elements, performing swinging motion of the pedals, the drive is equipped with a second pinion gear, the gear is made in the form of a sickle-shaped segments, and attached in a certain way directly on the rods, which are placed on the frame at a given distance from the carriage, drive chains attached at certain points of the segments and return mechanism connecting rods. In the developed actuator mechanism for changing gear ratio made in the form of swivel rocker bearing mechanism of a free stroke and the return mechanism of the connecting rod and the connecting traction chains all drive components into a single system. 5 C.p. f-crystals, 5 Il.

The invention relates to transport machinery, namely to vehicles driven by human muscle force, and can be used in bicycles and velomobiles, in which the energy source is muscular strength.

This trend is being implemented in two ways:

muscle gear-lever actuator, in which there is no chain of transmission that reduces mechanical friction and increases efficiency, however, complicated by its manufacture and maintenance;

muscular drive chain, in which there are no levers and cranks, which ensures the consistency of the shoulder is transmitted to the shaft of the carriage during the movement regardless of the position of the legs of the cyclist, reduces efforts and energy costs at the same speed, full use of the amplitude of movement of the legs, however, complicates the maintenance of a large number of friction surfaces.

Known gear-lever actuator of the vehicle [1] automatic stepless change gear ratio depending on the resistance of the drive wheel of the vehicle. This drive contains pedals, levers which are interconnected by a gear, ensure the e with gears, the driven gear through which the overrunning clutch associated with a wheel of the vehicle.

Levers and drove interconnected elastic elements.

The disadvantage of this drive is a fixed amplitude of movement of the legs of the cyclist, due to the size of the rod with the planet carrier. This distance and the height of the saddle above the carriage, can be optimal only under certain anthropometric data of the user.

When changing the anthropometric characteristics of optimality is violated and to obtain the desired results on the bike for each rider is required to install new levers measured including carriers.

Known muscle gear-lever drive vehicle with a reciprocating pedal [2] muscular drive contains the right and left cranks with pedals mounted on the axis of the carriage, mounted on the bottom of the frame, mechanism for changing gear ratios associated with each of the rods through the flexible rod and the elastic element of the return mechanism, the connecting rod with the pedal to its original position and with the leading bypass the sprocket wheels of the vehicle through the mechanism of a free motion; topolnica.

Each leading gear is made rack and coupled with the rail, moving on additional rod connected through overrunning with sprocket wheel.

Rack and pinion gears are synchronized mechanism changes of gear ratio made in the form of flexible shafts and drums, and the return mechanism is made in the form of springs. The switching mechanism is made in the form of a hand brake on the wheels of the flexible cable attached to the handle and managing hard-link rack and pinion gear.

This transfer operates independently from each pedal rotating angle of approximately 45owhile the cyclist performs feet not rotational, and oscillatory motion that ensures the rational use of the efforts of the cyclist in motion, reduces energy costs and increases the speed.

The disadvantage of this known drive is the difficulty of control, and insufficient use of the energy costs of the cyclist, because the installation site of the carriage is not at the optimum point of the frame, the fragility hard links.

Known drive chain of a Bicycle [3] mounted on the frame and containing chain transfer number on the back the howl of the sides of the frame, each of which is equipped to communicate with chain transmission to the receiving sprocket mounted on the shaft of the carriage and associated with him through the overrunning clutch device is transmitted with the same chain of transmission on the other, made in the form of a flexible inextensible link connecting the right and left chain drives through the bypass unit, the roller clamps to hold down the chain to the sprocket and pedals. In such a drive chain drives the shaft of the carriage is made in the form of a closed chain of transmission, each of which is provided with a bypass stars, one of which is placed above and the other below the carriage, pedals mounted on not interacting with the receiving asterisk branches, the bypass unit mounted on the frame above the carriage. The host stars are toothed sectors, by-pass is made with the nonmultiple number of teeth and mounted on a common shaft.

This drive allows you to improve the performance characteristics of the bike, however, difficult to service due to the large number of bearing assemblies.

Known muscular drive of the vehicle [4] contains a chain drive on the rear wheel with the leading bypass asterisk attached to the shaft of the carriage, right and left connecting rods with pedal with carriage and connecting rods through the mechanism of a free stroke, and additional levers carrying the drive gear. Additional levers mounted on one of the feathers of the back wheel and the drive gear is made in the form of ellipsoidal circle, mounted offset relative to the shaft of the carriage carrying the crank with pedals. The mechanism of change of gear ratio is a gear sectors with a certain number of teeth, and the free-wheeling mechanism made in the form of sprocket freewheel, bearing a chain.

This drive provides efficient use of muscle power, due to the displacement and shape of the drive gear, however, carried out by pedaling in a circle, causing fatigue of the rider; the actuator is difficult to service due to the inaccessibility of bearing assemblies.

The objective of the invention was to create a muscular drive vehicle, in which stroke would run during swinging movement of the legs of the cyclist down; there is continuity of traction and full use of the amplitude of movement of the legs.

To solve this problem is proposed muscular wheel drive vehicle, containing, chain drive on the rear wheel with the leading of the change gear ratio, associated with the left and right circuits with the carriage and connecting rods through the mechanism of free running and additional levers carrying the drive gear, the drive according to the invention, equipped with a second drive gear and each of them is made in the form of a Crescent gear segment, a curved surface facing the pedals are mounted on the secondary levers rigidly connected with the corresponding connecting rod and the lower end of each segment is fixed abutment end respectively of the right and left chain is pressed against the toothed surface of the segment mechanism changes of gear ratio made in the form mounted on the frame of the rocker switch and two plate gear sector, in which plavuse installed the axis of the idler sprocket of the freewheel mechanism on the drive shaft carriage mounted rotary two hrapovic wheel, and the lower end of the cantilever beam suspended rotary air asterisk return mechanism, the connecting rod having a flexible traction element connected to the transmission device efforts, pulling the ends of the right and left chains.

In this muscle actuator common axis of rods mounted on the frame above the carriage, offset otnositel segment fortified levers on the rod below its axis and offset of the lower end of the segment to the axis of rods at a distance, equal to half the distance from this axis to the upper end of the segment. The rocker rotary actuator is mounted at an angle 30oon the frame and located between the carriage and connecting rods at a distance from the shaft of the carriage, is selected equal to 2/3 of the distance between the said shaft and the axle, and gear sectors formed on the frame opposite the rocker, made in the form of two similar vertical curvilinear struts connected by bridges. At the upper end of the rocker arm is made a longitudinal groove below the axis of the guide sprocket freely placed between the posts and sectors in parallel to them.

The switch is mounted on the upper end of the rocker arm and made in the form of a spring-loaded power piston rod clamping bracket and ball handle.

Muscle actuator is equipped with a rotation limiter rods mounted on the frame under the arm, at a distance from the axis of rods equal to half the length of a rod.

Proposed muscular drive through the execution of its elements and the selected ratio of the sizes will allow you to place it in the optimum point of application of force on the frame, to reduce the distance between the pedals, will provide ease in any anthropometric data Enii performance characteristics of the bike and the relief drive control. The cyclist will spend less energy to drive the bike will increase the speed of his movement when extending the control range of gear ratio due to the full use of the power values developed by the feet on the final phases of the effort.

In Fig. 1 shows a muscular drive, General view; Fig.2 kinematic diagram of the actuator of Fig.3 shows the mechanisms of change of gear ratio and return of rods; Fig.4 chain drive shaft carriage (top view), and Fig. 5 presents schematically the mechanism of change of gear ratio (front view).

Muscular wheel drive vehicle contains a chain transfer 1 on the rear wheel (not shown) leading the bypass asterisk 2, mounted on the shaft 3 of the carriage 4, right 5 and left 6 rods with 7 pedals mounted on a common axis 8, the mechanism 9 changes of gear ratio associated right 10 left 11 chains with the carriage 4 and the connecting rods 5 and 6 respectively through additional levers 12 and 13 bearing drive gears 14 and 15.

Each drive pinion 14 and 15 made in the form of a Crescent gear segment, a curved surface 16 facing the pedals 7 and having, for example, 55 teeth. Gears 14 and 15 Simon the each segment (gears 14 and 15) is fixed to the base end 18 respectively to the right 10 left 11 chain, pressed to the curved toothed surface 16 mechanism 9 changes of gear ratio made in the form mounted on the frame 19 of the rocker arm 20 with the switch 21 and the two plate gear sector 22, in which plavuse set the axis 23 of the guide sprocket mechanism 24 25 free play. On the shaft 3 of the carriage 4 mounted rotary two hrapovic wheel 26. At the lower end 27 of the rocker arm 20 console on the axis 28 is suspended rotary sprocket mechanism 29 30 return of rods 5 and 6 to its original position. The mechanism 30 has a flexible traction element 31, thrown over the sprocket 29 and connected inextensible device 32 is transmitted to the traction ends 33 and 34 of the respective circuits 10 and 11

The sprocket 29 is expanded around its axis 28 so that its top was located right in front ratchet wheel 26, and the lower part, opposite the left ratchet wheel 26. This setup sprocket 29 provides devices 32 a reversal of the traction element 31, for example a chain, 16o. The sprocket 29 and the circuit 31 provides the reciprocating motion of the system chain of gears and connecting rods.

The common axis of the connecting rods 5 and 6 mounted in the sleeve 35 on the frame 19 of the carriage 4, offset along the frame of the gear segments is strengthened by the levers 12 and 13 on the rod 5 and 6 below its axis 8 and the offset lower end 36 to the axis 8 by a distance equal to half the distance from this axis to the upper end 37 of the segment.

The swivel rocker 20 is mounted on a frame 19 at an angle thereto in the 30oand is it between the shaft 3 of the carriage 4 and the axis 8 of rods 5 and 6 on the length of the shaft of the carriage, is selected equal to 2/3 of the distance between the axis 8 and the shaft 3, the gear sector 22 is formed on the frame opposite the rocker. At the upper end 38 of the rocker arm 20 is made a longitudinal groove 39 in which is freely mounted for sliding thereon, the axis 23 of the sprocket 24. The groove 39 is made in length, for example 10 mm, respectively, the axis has the same amount of movement.

The rocker 20 is made of two similar vertical plate curved racks 40, United ridges 41 and 42. At the upper end 38 of the rocker arm 20 on the upper crosspiece 41 in the middle of the set switch 21, is made in the form of the power shaft 43, the support clamp bracket 44, fixed on the ends of the axis 23, and the spring 45, clamped the bracket 44 and the axis 23 down. The bracket 44 fixed drive ring 46, and the top 47 of the rod 43 is mounted decorative ball arm 48.

Sprocket 24 mechanism 25 is installed between the posts 40 and sectors 22, and the axis 23 is made outside the sectors 22, not 19 under the yoke 20 is mounted limiter 49 turning rods, placed on the frame at a distance from the axis 8 of rods equal to half the length of a rod.

For the convenience of placing the drive on the Bicycle frame lower part is made of two tapered on the sides of the tubes, for example to a thickness of 15 mm, turning into side feathers 51 rear wheels.

When riding a bike the rider sitting on the saddle, push your right foot on the right pedal connecting rod 5 and the circuit 10, is mounted at the end 17, begins to run on the curved surface of the gear 14 (segment), which increases the load on the circuit as roshiba feet. Circuit 10, passing through the sprocket 24, expands the ratchet wheel 26 with the shaft 3. Further, the right circuit, connected to the circuit 31 through the sprocket 29 pulls the left connecting rod 6 up until right rod 5 reaches the stopper 49. When the pressure on the left pedal connecting rod 6, the cycle repeats, providing continuous rotation of the shaft 3, the leading bypass sprocket 2, a transmitting movement to the sprocket of the rear wheel chain drive 1.

For gear, you need to lean his hand on the decorative ball arm 48 and the finger to lift the ring 46 of the bracket 44 by moving the rocker 20 forward or backward by sector 22, with the axis 23 of the sprocket 24, bearing N. the moment when one of the connecting rods installed on the limiter 49.

The proposed drive will allow you to receive up to 30 40 transmission with only one sprocket on the rear wheel, to fully utilize the increasing traction when rathebe legs of the cyclist, to reduce the distance between the pedals to ergonomically optimal.

Experienced test drive showed that it is more effective in contrast to the known, reducing energy costs when moving the bike up to 30% In the developed gear there is no dead zone when moving the pedals.

Developed by the cyclist muscular effort is fully transferred, i.e. converted into useful work, on the shaft of the carriage regardless of the pedal position, and therefore, the stroke can be started at any position, providing maximum torque.

With the proposed actuator can go, even if the pedals do not move for the entire value of the maximum stroke, moving his feet with smaller amplitude swing. The actuator can be manufactured on existing equipment with maximum use of production elements. The prototype actuator was produced in the experimental shop of the plant,containing a series of chain drive on the rear wheel with the leading bypass asterisk mounted on the shaft of the carriage, right and left cranks with pedals mounted on a common axis, the mechanism of change of gear ratio associated with the left and right circuits with the carriage and connecting rods through the mechanism of free-wheeling, and additional levers carrying the drive gear, characterized in that it is provided with a second drive gear and each of them is made in the form of a Crescent gear segment, a curved surface facing the pedals are mounted on the secondary levers rigidly connected with the corresponding connecting rod and the lower end of each segment is fixed abutment end respectively of the right and left chain, pressed against the toothed surface of the segment mechanism changes of gear ratio made in the form mounted on the frame of the rocker switch and two plate gear sectors in which plavuse installed the axis of the idler sprocket of the freewheel mechanism on the drive shaft carriage mounted rotary two hrapovic wheel, and the lower end of the cantilever beam suspended rotary air asterisk return mechanism, the connecting rod having a flexible traction element connected devices power transmission with traction ends of the right and leveaniemi about its axis by a distance selected from the relation 1 1 1/4 to 1/3 the length of a rod.

3. Drive on PP.1 and 2, characterized in that the toothed segment fortified levers on the rod below its axis and offset lower end to the axis of the connecting rod by a distance equal to half the distance from the axis to the upper end of the segment.

4. Drive on PP.1 to 3, characterized in that the rocker swivel mounted at an angle 30oon the frame and located between the carriage and connecting rods at a distance from the shaft of the carriage, is selected equal to 2/3 of the distance between the said shaft and the axle, and gear sectors formed on the frame opposite the rocker, made in the form of two similar vertical curvilinear struts connected by bridges, and provided at the upper end of the longitudinal groove in the axis of the guide sprocket freely placed between the posts and sectors in parallel to them.

5. Drive on PP.1 to 4, characterized in that the switch is mounted on the upper end of the rocker arm and made in the form of a spring-loaded power piston rod clamping bracket and ball handle.

6. Drive on PP. 1 to 5, characterized in that it is equipped with rotation limiter rods mounted on the frame under the arm at a distance from the axis of rods equal to half the

 

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