CN2302375Y

CN2302375Y - Force driving apparatus

Info

Publication number: CN2302375Y
Application number: CN 97233626
Authority: CN
Inventors: 戚大山; 马社会
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-07-16
Filing date: 1997-07-16
Publication date: 1998-12-30
Anticipated expiration: 2007-07-16

Abstract

The utility model discloses a force driving apparatus. Two isodont gears are engaged and connected with each other, which have equal circles. The two gears are movably connected with two dynamic force rods through bell cranks by the utility model. The reciprocating movement force of the dynamic force rods is converted into the rotatory force of the two gears. So the length of the dynamic force rod is increased by the utility model. The force rate is enlarged; the rotatory force of output is enlarged.

Description

A kind of transmission device of power

The utility model relates to and a kind ofly converts power the transmission device of the power of circular movement to by to-and-fro motion, is particularly useful for the device of manpower bicycle chain wheel drive.

Existing with the move in a circle transmission device of driven gear ouput force of power lever, often be subjected to the influence of power lever circular movement amplitude, limited the length of power lever, and can't realize the increase of ouput force with the mode that increases force rate, therefore the using effect of its device is restricted, chain sprocket driving device such as bicycle, utilize the circular movement of foot-driven lever to drive bicycle, but owing to be subjected to people's leg exercise amplitude to limit the length of foot-driven lever, and can not get bigger force rate, under the limited situation of leg power, can not get the output of bigger power, though and the force rate of speed-varying vehicle can increase, reduced speed simultaneously.

The purpose of this utility model is to overcome the above the deficiencies in the prior art, and the transmission device of the power that a kind of reciprocatory motion driven gear that utilizes power lever rotates is provided, and can increase force rate, under the effect of same power, obtains the output of bigger power.

The purpose of this utility model is achieved in that

A kind of transmission device of power, mainly form by gear, power lever and axle, its special way is: this device is fixed axle sleeve 10 and axle sleeve 11 opposing parallel by two crossbeams, form a square center framework, main shaft 18 and main shaft 19 are inserted in axle sleeve 10 and axle sleeve 11 respectively, and flexibly connect by bearing; Side at this center framework, one end of main shaft 18 and main shaft 19 fixed cover respectively is equipped with crank throw 7 and crank throw 8, the outside is provided with power lever 6, and by offer in its terminal perforate and middle-end sliding-groove 12, flexibly connect with the end of vertically downward crank throw 7 and the end of crank throw vertically upward 8 respectively with bearing pin 14 and bearing pin 15; Opposite side at center framework, the other end of main shaft 18 and main shaft 19 fixed cover respectively such as is equipped with at gear 3 and the gear 4 that teeth such as garden are connected, the outside is fixedly suit crank throw 20 and crank throw 21 respectively again, outermost is provided with power lever 9, sliding-groove 13 by its terminal perforate and middle-end are offered flexibly connects with crank throw 20 and crank throw 21 respectively with bearing pin 16 and bearing pin 17.Crank throw 20 and 21 and the corresponding crank throw 7 of opposite side and 8 be to be provided with in the other direction.When external force acts on power lever 6 tops and moves downward, utilize leverage to pass through crank throw 7 and crank throw 8 drive main shaft 18 and main shafts 19, make gear 3 and gear 4 mutual backward rotation, driving crank throw 20 and 21 simultaneously will lift on the power lever 9, power lever 6 has walked to and has descended most point when going up most, external force acted on power lever 9 and move downwards this moment, utilized leverage by crank throw 20 and 21 drive main shafts 18 and 19 gear 3 and 4 to be rotated further, and drove crank throw 7 and 8 simultaneously and made on the power lever 6 and lift.To-and-fro motion driven gear 3 and 4 by power lever 6 and 9 rotates continuously like this, implements the conveying of power.

In the conveying means of above-mentioned a kind of power, can also be at the fixing gear 1 of suit of the inboard of crank throw 7 and crank throw 8 and main shaft 18, the gear assembly that connects as one by large toothed disk 5 and gear 2 fixing coaxials with main shaft 19 movable sets, and gear 1 and gear 2 are connected mutually.Gear 3 rotates by main shaft 18 driven gears 1 during operation, and gear 1 driven gear 2 makes the output of large toothed disk 5 quick rotation realizable forces.Gear 1 and 2 can also under the situation that keeps mutual interlock, suitably increase and decrease its radius size as required relatively, makes the corresponding increase and decrease of rotating speed of large toothed disk 5 under the effect of same external force.

Good effect of the present utility model is that driven gear rotates owing to adopt two power levers to move reciprocatingly, and can increase dynamic pole length, increases force rate, under the effect of same power, but the output of increased force will.

Below in conjunction with embodiment the utility model is described further.

Fig. 1 is the right elevation of the transmission device of a kind of power of the utility model

Fig. 2 is the left view of the transmission device of a kind of power of the utility model

Fig. 3 is the plan view of the transmission device of a kind of power of the utility model

Embodiment 1: in the transmission device static structure of a kind of power as shown in Figure 2, by two crossbeams axle sleeve 10 and axle sleeve 11 opposing parallel are fixed, form a square center framework, main shaft 18 and main shaft 19 overlap people's axle sleeve 10 and axle sleeve 11 respectively, and flexibly connect by bearing; Side (as shown in Figure 1) at this center framework, one end of main shaft 18 and main shaft 19 fixed cover respectively is equipped with crank throw 7 and crank throw 8, be provided with power lever 6 in its outside, and the sliding-groove 12 by offering in its terminal hole and middle-end, flexibly connect with the end of vertically downward crank throw 7 and the end of crank throw vertically upward 8 respectively with bearing pin 14 and bearing pin 15; Opposite side (as shown in Figure 3) at center framework, the other end of main shaft 18 and main shaft 19 fixed cover respectively such as is equipped with at gear 3 and the gear 4 that teeth such as garden are connected, be respectively equipped with crank throw 20 and 21 in its outside, outermost is provided with power lever 9, sliding-groove 13 by its terminal perforate and middle-end are offered flexibly connects with crank throw 20 and 21 respectively with bearing pin 16 and bearing pin 17.

During operation, external force acts on the top of power lever 6, it is moved to the lower right, by crank throw 8 rotating spindles 19 gear 4 of opposite side is rotated (as shown in Figure 3) in the counterclockwise direction, gear 4 driven gears 3 rotate along clockwise direction, simultaneously the end of power lever 6 with bearing pin 15 be fulcrum to the upper right to motion, by crank throw 7 rotating spindles 18, also driven gear 3 rotates along clockwise direction.When power lever 6 moves to upper/lower positions, crank throw 8 moves to position vertically downward, crank throw 7 moves to position vertically upward, gear 3 and gear 4 operation half cycles, at this moment, crank throw 20 moves to position vertically downward, crank throw 21 moves to position vertically upward, and power lever 9 driven to going up most movement position, in this state, external force remakes the top that is used for moving lever 9, driving main shaft 18 and 19 by crank throw 20 and 21 makes gear 3 and gear 4 finish moving of second half along former motion state, when power lever 9 moves to when descending most running position, main shaft 18 and main shaft 19 drive crank throw 7 and crank throws 8, and the power lever 6 of opposite side is driven to uppermost position in fig-ure.So continuous alternating action turns round gear 3 and gear 4 in power lever 6 and 9 continuously.In the running, bearing pin 14,15,16,17 moves to be gone up or during lower dead centre, because the effect of inertia of gear 3 and gear 4 is walked around the dead point, continue operation most, bearing pin 15 and bearing pin 17 can steadily slide in sliding-groove 12 and 13 respectively, in order to the stretching, extension operation of power lever.This device is connected with external equipment by gear 3 or 4, both can finish the output of the power that is transmitted by power lever.

Embodiment 2:(is as shown in Figure 1) in the conveying means of a kind of power described in the embodiment 1, inboard at crank throw 7, can with the fixing gear 1 of suit of main shaft 18, inboard at crank throw 8, again with gear assembly that is connected with large toothed disk 5 fixing coaxials by gear 2 of main shaft 19 pivot bush units, and gear 1 and gear 2 are connected.This covering device is installed on the tripod of ordinary bicycle, large toothed disk 5 is connected with the bicycle rear shaft tooth, install foot treadle, so just form a treadle formula bicycle at the top of power lever 6 and 9 with chain.During driving, alternately step power lever 6 and 9, according to embodiment's 1 described method of operation, driven gear 1 is rotated in the rotation of gear 3 and main shaft 18, and gear 1 rotates large toothed disk 5 by the gear 2 of interlock with it, like this, large toothed disk 5 usefulness chains drive bicycle rear and rotate, and order about the bicycle operation.

Embodiment 3: in embodiment's 2 described transmission devices, change a gear 1 that radius is bigger, change the gear 2 of small radii simultaneously, make gear 1 and gear 2 still keep interlock, when moving like this, the gear 1 of long radius under the situation identical with embodiment's 2 medium speeds, with the gear 2 of minor radius that makes its drive with rotation speed operation faster, thereby bicycle is moved at faster speed.

Claims

1, a kind of transmission device of power, mainly form by gear, power lever and axle, it is characterized in that: this device is fixed axle sleeve (10) and axle sleeve (11) opposing parallel by two crossbeams, form a square center framework, main shaft (18) and main shaft (19) are inserted in axle sleeve (10) and axle sleeve (11) respectively, and flexibly connect by bearing; Side at this center framework, one end of main shaft (18) and main shaft (19) fixed cover respectively is equipped with crank throw (7) and crank throw (8), be provided with power lever (6) in its outside, and with bearing pin (14) and bearing pin (15) be passed in that the terminal perforate of power lever (6) and middle-end offer sliding-groove (12), flexibly connect with the end of vertically downward crank throw (7) and the end of crank throw vertically upward (8) respectively; Opposite side at center framework, the other end of main shaft (18) and main shaft (19) fixed cover respectively such as is equipped with at gear (3) and the gear (4) that teeth such as garden are connected, fixedly suit and crank throw (7) and (8) coaxial reverse crank throws (20) and crank throw (21) respectively in its outside, outermost is provided with power lever (9), and passes sliding-groove (13) that the terminal perforate of power lever (9) and middle-end offer with bearing pin (16) and bearing pin (17) and flexibly connect with the end of crank throw (20) and crank throw (21) respectively;

2, the transmission device of a kind of power according to claim 1, the inboard that it is characterized in that described crank throw (7) and crank throw (8), main shaft (18) is a gear of suit (1) fixedly, the gear assembly that main shaft (19) movable set is connected as one by large toothed disk (5) and gear (2) fixing coaxial, and gear (1) and gear (2) are connected mutually;

3, the transmission device of a kind of power according to claim 2 is characterized in that the radius of described gear (1) and gear (2) can carry out appropriateness adjustment under the constant situation of its radius sum.