CN2239390Y - Bicycle hydraulic driving gear - Google Patents

Abstract

The utility model relates to a bicycle hydraulic driving gear, comprising a foot pedal, an oil cylinder, an oil pump and a directional control valve, which is characterized in that the center shaft of a vehicle body 1 is provided with a rectangle metal connecting plate 2 with a round hole in the middle; the main rotary shaft 13 of an oil pump 4 goes through the round hole and is fixed on the connecting plate 2 by a bolt. An oil tank 3 is fixed on the lower part of the connecting plate 2; the oil cylinder 9, an accelerating tank 7 and the directional control valve 5 are respectively fixed on the connecting plate and are connected by a connecting rod and an oil pipe. Compared with the traditional man-power bicycles, the utility model is an ideal bicycle driving gear and has the advantages of labour saving performance, big output power, fast speed and reasonable weight and machining accuracy.

Description

The bicycle fluid pressure drive device

The utility model relates to a kind of fluid pressure drive device that is used for rickshaw, is specially adapted to the fluid pressure drive device of bicycle.

Existing bicycle driving device is that curved bar and stretcher are housed on the axis of bicycle, and the sprocket wheel on the axis is linked to each other with sprocket wheel on the hind axle with chain, two pedal stretchers by the people when bicycle is advanced are made circular movement by curved bar, the drive axis rotates, and trailing wheel is rotated by chain, the type of drive of this manpower-chain-gear change-takeoff output is difficult to the requirement that reaches high-power, high-speed.

The purpose of this utility model provides a kind ofly can amplify manpower tens times, laborsaving, and horsepower output is big, and speed is fast, the rational bicycle fluid pressure drive device of weight and requirement on machining accuracy.

The utility model is to realize like this, this bicycle fluid pressure drive device comprises foot-operated pedal, oil cylinder, oil pump, change-over valve, its main points are that the round-meshed metal web 2 in the square centre of a block length is installed at the axis place of car body 1, the live spindle 13 of oil pump 4 passes the circular hole in the middle of the coupling plate 2, and with bolt on it, one conical gear 11 is installed in the upper end of oil pump 4, fuel tank 3 is fixed on the lower end of coupling plate 2, and containing pump housing the latter half, oil cylinder 9 is bearing in front end left side on the coupling plate 2 by cylinder bracket 10, accelerating chamber 7 joins by connecting rod 6 and oil cylinder and is fixed on right side, coupling plate 2 rear end, change-over valve 5 is arranged on the left side, back upper place of coupling plate 2, and by oil pipe and oil pump 4, oil cylinder 9 fuel tanks are connected.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the overall structure scheme drawing of the utility model hydraulic actuator.

Fig. 2 is a birds-eye view of the present utility model.

Fig. 3 is the cutaway view of the utility model oil pump.

Fig. 4 is the cutaway view of the utility model change-over valve.

Fig. 5 is the cutaway view of the utility model oil cylinder.

Fig. 6 is the cutaway view of the utility model accelerating chamber.

As shown in Figure 1, main points of the present utility model are, at car body 1 axis place the round-meshed metal web 2 in the square centre of one block length is installed, the live spindle 13 of oil pump 4 passes the circular hole in the middle of the coupling plate 2, and with bolt on it, oil cylinder 9 also is installed on coupling plate 2, change-over valve 5 is arranged on the left side, back upper place of coupling plate 2, accelerating chamber 7 joins by connecting rod 6 and oil cylinder 9 and is fixed on the right survey in rear end on the coupling plate 2, fuel tank 3 is fixed on the lower end of coupling plate 2, and contain pump housing the latter half, and both can reach the purpose of fuel feeding, can reclaim leakage of oil again.

As shown in Figure 3, another main points of the present utility model are, oil pump 4 on this fluid pressure drive device is by the pump housing 19, live spindle 13, swash plate 14, be positioned at 18 compositions of pump pressure lid on the pump housing 19, live spindle 13 is positioned in the middle of the pump housing, and pass by the circular holes in the middle of the coupling plate 2, conical gear 11 is installed in the upper end of live spindle 13, two bearings 16 are installed in lower end at live spindle 13, on the pump housing 19, also be provided with seven cylinder holes 20, built-in seven cooperations well can be reciprocating plunger 15, be provided with oil discharge outlet and cushion rubber draining valve 21 in lower end, cylinder hole, swash plate 14 is fixed on the live spindle 13 by screw, in slotting in plunger 15 tops that its outer rim insertion is complementary with it, the guide plate 17 that has seal ring is installed in the pump housing 19 upper ends, bottom 22 and pump pressure lid 18 are installed in the bottom and the top of the pump housing 19 respectively with screw thread, and seal with sealing member, on bottom 22, be provided with seven oil suction valve openings 23, there is an oil outlet 26 side of bottom, be connected with change-over valve 5 by oil pipe, oil distrbuting box 24 together is fixed on bottom (below 22 by bolt and seal ring, and, establish an oil inlet 25 in oil suction case 23 sides by oil sucting valve 23 fuel feeding in pump.When external force affacts gear 8 and conical gear 11,13 rotations of driven rotary main shaft, meanwhile, swash plate 14 also rotates thereupon, and drives plunger 15 and move reciprocatingly, when plunger 15 outwards during elongation, the pump chamber internal volume increases, fluid will be inhaled in the chamber by oil suction valve opening 23, and during rollback, the chamber internal volume from large to small, oil suction valve opening 23 is closed, at this moment the fluid in the chamber is then discharged by draining valve 21, then just produced pressure oil, and by oil outlet 26 outside fuel feeding.

With reference to Fig. 4, another main points of the present utility model are, the structure of the change-over valve 5 on this fluid pressure drive device is to be provided with three road grooves in the middle of spool 32, medial launder is that main oil feed groove 39 is wide slightly, both sides are narrow slightly for advancing oil return slots 36, two ends are provided with oil return nozzle 40,33, and linkage frame 27 is fixed on the oil return nozzle, axial direction in the middle of valve body 35 is provided with three equally spaced oilholes, and the centre is that main fuel feed hole 38, two is surveyed to advancing outage 37, corresponding with three road grooves of spool, be provided with valve gap 34 at valve body 35 two ends, play reclaimed oil, support 30 is arranged on the outer midway location of valve body 35, and be equipped with thereon two the hook 31, corresponding with linkage frame 27 risers, on the crossbeam of linkage frame, be provided with spring 28 and dead man 29, play thrust and reset response.Because groove 39 width in the middle of the spool 32 equal the distance of main fuel feed hole 38 and adjacent fuel feed hole on the valve body 35, so no matter spool is in which side, after middle groove contains adjacent two holes of valve body, the groove of spool 32 any sides then with valve body 35 on another hole align mutually, so just realized that oil discharge outlet substitute to use.In addition, because spring 28 and the effect of linking up with 31, spool 32 is in valve body 35 1 sides all the time, also makes change-over valve 5 be in the position of unlatching all the time, so just determined initial oil-feed after, dead man 29 actions on the piston 42 that will drive oil cylinder 9 and the valve body 35, with regard to pressuring spring 28 accumulation of energys, press off hook 31 after stroke reaches during action, 28 on spring promotes spool 32 and moves on to the other end, oil circuit is changed, thereby realize commutation.

With reference to Fig. 5, be provided with piston rod 50 in the middle of the cylinder body 44 of the oil cylinder 9 that another main points of the present utility model are these fluid pressure drive devices, respectively be provided with one at cylinder body 44 two ends and advance the general oilhole 45 of oil extraction, it advances 37 corresponding joining of outage with change-over valve, front and rear cover 41,46 is by the two ends of screwed connection at cylinder body 44, and seal by seal ring, orienting sleeve 47 is contained in the cylinder body front end, be provided with y-shaped ring 48 in the cover, pressure pad 49 adjustment nuies 51, nylon piston 42 is located at the inner termination of piston rod 50, and the cylinder inner chamber is divided into two annular seal spaces, and piston 42 two ends are provided with the V-ring groove.In fluid enters into any chamber of oil cylinder 5, then promote nylon piston 42 and move to opposite side, piston rod 50 also drives change-over valve and changes oil circuit simultaneously, thereby realizes piston rod 50 crank motions.

With reference to Fig. 6, the casing of the accelerating chamber 7 that another main points of the present utility model are these fluid pressure drive devices is a cuboid, in main driving axle 54 is housed, driven shaft 59, output shaft 61, big gear wheel 55 is housed on the main driving axle 54, and eccentric disk 52 is equipped with at two ends, gets rid of wheel 56, two speed change driven gears are housed on the driven shaft 59, big gear wheel 57, miniature gears 58 is equipped with driven miniature gears 60 on the output shaft 61, sprocket wheel 62 is equipped with in the output shaft outside, and link to each other with trailing wheel by cycle chain, the axle center of connecting rod 6 is located at the bottom of the outside eccentric disk 52 of casing 7, and when piston rod 50 crank motions of oil cylinder 5, drivening rod 6 is by eccentric disk 52, make imput shaft 54 rotations, thereby by the variation of gear, make output shaft 61 quicken rotation, the getting rid of wheel 56 on the main driving axle 54 is dead center positions when utilizing coherence to eliminate piston rod 50 crank motions.

When foot-operated pedal 63 drives main shaft 13 rotations by the manpower effect, by the conical gear on the imput shaft 8,11, drive oil pump 4 rotation works done, produce pressure oil output, the pressure oil of output then enters into oil cylinder 9 by change-over valve 5, make piston rod 50 reciprocating, 50 in piston rod drives imput shaft 54 rotations of accelerating chambers 7 by connecting rod 6 and eccentric disk 52, and then the variation by gear, makes output shaft 61 fast rotational, drive chain 66 effects simultaneously, reach bicycle and advance fast.

The utility model has the advantages that weight and machining accuracy are reasonable, with traditional rickshaw phase More laborsaving than not only, and power output is big, manpower can be amplified tens times, and speed is also fast. Can be wide General being useful on the bicycle also can will be installed after the old bike transformation, is voluntarily comparatively ideal The car drive unit.

Claims (5)

1, a kind of bicycle fluid pressure drive device, comprise foot-operated pedal, oil cylinder, oil pump, change-over valve, it is characterized in that the round-meshed metal web in the square centre of one block length (2) being installed at car body (1) axis place, the live spindle (13) of oil pump (4) passes the circular hole in the middle of the coupling plate (2), and with bolt on it, in the upper end of oil pump (4) conical gear (11) is installed, fuel tank (3) is fixed on the lower end of coupling plate (2), and containing pump housing the latter half, oil cylinder (9) is bearing in coupling plate (2) by cylinder bracket (10) and goes up the front end left side, accelerating chamber (7) joins by connecting rod (6) and oil cylinder (9) and is fixed on coupling plate (2) and goes up the right side, rear end, change-over valve (5) is arranged on the left side, back upper place of coupling plate (2), and by oil pipe and oil pump (4), oil cylinder (9) fuel tank (3) is connected.

2, bicycle fluid pressure drive device according to claim 1, it is characterized in that described oil pump (4) is by the pump housing (19), live spindle (13), swash plate (14), being positioned at pump pressure lid (18) on the pump housing etc. forms, live spindle (13) is positioned in the middle of the pump housing, conical gear (11) is installed in the upper end of live spindle (13), in the lower end of revolving a main shaft (13) two bearings (16) are installed, on the pump housing (19), be provided with seven cylinder holes (20), the plunger (15) that built-in seven cooperations well can move reciprocatingly, be provided with oil discharge outlet and cushion rubber draining valve (21) in lower end, cylinder hole, swash plate (14) is by screw fixedly on the live spindle (13), in slotting in plunger (15) top that its outer rim insertion is complementary with it, the guide plate (17) that has seal ring is installed in the pump housing (19) upper end, the bottom (22) and pump pressure lid (18) that have seal ring, be installed in the bottom and the top of the pump housing (19) respectively, and use screwed connection, on bottom (22), also be provided with seven oil suction valve openings (23), be provided with an oil outlet (26) in the bottom side, oil distrbuting box (24) by be bolted to bottom (22) below, and one oil inlet (25) is set in oil distrbuting box (24) side.

3, bicycle fluid pressure drive device according to claim 1, the structure that it is characterized in that described change-over valve (5) is for being provided with three road annular grooves in the middle of spool (32), medial launder is that main oil feed groove (39) is wide slightly, both sides are narrow slightly for advancing oil return slots (36), two ends are provided with oil return nozzle (40), (33), and linkage frame (27) is fixed on the oil return nozzle, axial direction in the middle of valve body (35) is provided with three equally spaced oilholes, the centre is main fuel feed hole (38), both sides are for advancing outage (37), be provided with valve gap (34) at valve body (35) two ends, outer midway location at valve body (35) is provided with a support (30), and two hooks (31) are installed thereon, and corresponding with linkage frame (27) riser, on the crossbeam of linkage frame (27), be provided with spring (28) and dead man (29).

4, bicycle fluid pressure drive device according to claim 1, the middle piston rod (50) that is provided with of cylinder body (44) that it is characterized in that described oil cylinder (9), be respectively equipped with the general oilhole of into oil extraction (45) at the two ends of cylinder body (44), it advances corresponding joining of outage (37) with change-over valve (5), front and rear cover (41), (46) by the two ends of screwed connection in cylinder body (44), and seal by seal ring, orienting sleeve (47) is contained in the cylinder body front end, be provided with y-shaped ring (48) in the cover, pressure pad (49), adjustment nut (51), nylon piston (42) is located at the inner termination of piston rod (50), and piston (42) two ends are provided with the V-ring groove.

5, bicycle fluid pressure drive device according to claim 1, the casing that it is characterized in that described accelerating chamber (7) is an oblong, in main driving axle (54) is housed, driven shaft (59), output shaft (61), a big gear wheel (52) is housed on the main driving axle, there is eccentric disk (52) at two ends, get rid of wheel (56), and two speed change driven gears are housed on the driven shaft (59), big gear wheel (57), miniature gears (58) is equipped with driven miniature gears (60) on the output shaft (61), output shaft is equipped with a sprocket wheel (62) outward, and link to each other with trailing wheel by cycle chain, the axle center of connecting rod (6) is located at the bottom of the outside eccentric disk (52) of casing (7).

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