CN201827030U - Gravity crank type body-building generator - Google Patents

Abstract

A gravity crank arm type fitness generator, including a drive device connected to each other, a transmission device, a power generation device and a power storage device. The two ends of the horizontal drive rod are respectively movably connected with left and right drive rods, the other ends of the left and right drive rods are respectively provided with left and right pedals, and the middle parts of the left and right drive rods are respectively provided with left and right curved pedals. The left and right sliding grooves corresponding to the arms, the other ends of the left and right curved arms are connected with the middle part of the driving gear in the transmission device, the outside of the driving gear is meshed with the small transition gear, and the middle part of the small transition gear is connected with the middle part of the large transition gear. The middle part is connected, and the outside of the large transition gear cooperates with the motor gear transmission in the power generation device, and the generator is a permanent magnet generator. The utility model is not only easy to operate and not easy to cause fatigue, but also has high conversion efficiency of electric energy and can generate more electric energy.

Description

A kind of gravity crank arm type fitness generator

technical field

The utility model relates to a fitness generating device, in particular to a gravity crank arm type fitness generator, which is particularly suitable for simultaneous human body fitness and clean energy production.

Background technique

At present, most of the fitness power generation devices on the market use the principle of bicycle pedaling, that is, a person sitting on a similar bicycle seat device pedals with both legs to make the pedals perform reciprocating circular motions, thereby generating mechanical energy, and then the pedals are connected to the pedals to generate mechanical energy. A connected generator converts this mechanical energy into electrical energy.

The Chinese patent authorization announcement number is CN2836859Y, and the utility model patent on November 15, 2006 discloses a self-generating exercise bike, which includes a frame, a display instrument arranged on the frame, a pedal drive assembly and Generator, the pedal drive assembly includes a pedal, a crank, the pedal and the crank are interlocked, the display instrument is electrically connected to the generator through a wire, and the crank is connected to the rotor of the generator through a transmission mechanism. The transmission mechanism includes a pulley which is connected with the crank and can rotate with the rotation of the crank, and a transmission belt, which connects the pulley and the rotor of the generator in driving connection. Although this utility model has the function of generating electricity and has a relatively simple structure, it needs to step on the pedal and make it produce circular motion to generate mechanical energy. This generation method not only easily consumes people's physical strength, makes people tired, and even causes muscle strain. In addition, the energy conversion rate is low, and there is a lot of waste of mechanical energy. It is only suitable for the power generation method of electric excitation, but cannot be adapted for the power generation method of permanent magnet excitation, so the generated electric energy is less.

Contents of the invention

The purpose of the utility model is to overcome the defects and problems existing in the prior art that are easy to make people tired, the energy conversion rate is low, and the generated electric energy is less, and to provide a kind of electric power plant that is not easy to make people tired, has a high energy conversion rate, and generates less electric energy. Gravity crank arm fitness generator with more power.

In order to achieve the above purpose, the technical solution of the utility model is: a gravity crank arm type fitness generator, including a drive device, a transmission device, a power generation device and a power storage device connected to each other, one end of the drive device and the chassis The other end is connected with the transmission device, the other end of the transmission device is connected with the power generation device, and the other end of the power generation device is connected with the power storage device; the drive device includes a fulcrum shaft, a left drive rod, a right drive rod, The left crank arm and the right crank arm, the transmission device includes a driving gear, a small transition gear and a large transition gear, and the power generation device includes a generator and a motor gear;

One end of the fulcrum shaft is connected to the middle beam of the underframe arranged in the middle of the underframe, and the other end is penetrated with a horizontal drive rod, and the two ends of the horizontal drive rod are respectively movably connected with a symmetrical left drive rod and a right drive rod. The other ends of the left drive rod and the right drive rod are respectively provided with a left pedal and a right pedal, and the middle parts of the left drive rod and the right drive rod are respectively provided with a left sliding groove and a right sliding groove corresponding to the left crank arm and the right crank arm. The other ends of the left crank arm and the right crank arm are connected to the middle of the driving gear, the outside of the driving gear meshes with the small transition gear, the middle of the small transition gear is connected to the middle of the large transition gear, and the outside of the large transition gear is connected to the generator The gear transmission of the motor set on the machine cooperates.

The generator is a permanent magnet generator, and a controller is arranged on the power storage device.

The transmission mode of the large transition gear and the motor gear is belt transmission, gear meshing transmission or chain transmission.

The fulcrum shaft is provided with a skeleton, and the other end of the skeleton is provided with a display; the two ends of the crossbeam in the underframe are respectively fixedly connected with the left vertical beam of the bottom frame and the right vertical beam of the bottom frame, and the left vertical beam of the bottom frame and the bottom frame An upper beam and a lower beam of the underframe parallel to the middle beam of the underframe are arranged between the right vertical beams, and left handrails and right handrails are respectively arranged on the upper beams of the underframe and the lower beams of the underframe.

Compared with the prior art, the beneficial effects of the utility model are:

1. Because the driving device in a gravity crank arm type fitness generator of the present invention includes a fulcrum shaft, a left drive rod, a right drive rod, a left crank arm and a right crank arm, and the left drive rod and the right drive rod respectively A left pedal and a right pedal are provided, and at the same time, a left slide groove and a right slide groove corresponding to the left crank arm and the right crank arm are respectively arranged in the middle of the left drive rod and the right drive rod. When in use, a person steps on the pedal, Through the gravitational potential energy of the human body or combined with the kinetic energy of the legs along the gravity line, the pedals are jointly driven to drive the drive rod to move downward. The crank arm in the sliding groove provided on the drive rod rotates to generate mechanical energy, and then the mechanical energy is transmitted to the generator through the transmission device from the other end of the crank arm to generate electric energy. The circular motion of the human body's legs is adopted, and it mainly depends on the gravitational potential energy of the human body and the way of linear up and down motion matched with it. If the kinetic energy of the human legs on the gravity line is added, the effect will be better, because It is no longer necessary for human legs to perform pedaling circular motions, but only left and right legs are required to move up and down alternately, which can not only generate a large amount of mechanical energy, but also generate a large amount of electrical energy. Fatigue, meanwhile, is a long-lasting exercise that can further increase the production of electrical energy. Therefore, the utility model is not only difficult to make people tired, but also produces more mechanical energy and electric energy.

2. Since the utility model includes a driving device, a transmission device, a power generating device and an electric storage device connected to each other in a gravity crank arm type fitness generator, wherein, the driving device utilizes the gravitational potential energy and adopts a straight up and down pedal The movement mode generates more electric energy. Therefore, in order to ensure that the generated mechanical energy is not wasted, the utility model not only designs a simple transmission device, but the device only includes a driving gear, a small transition gear, and a large transition gear. A permanent magnet generator is used as a generator. This kind of generator abandons the electric excitation power generation method that must be used in fitness power generation equipment in the prior art, saves the excitation winding, brushes and collector rings, and uses permanent magnet excitation A power generation method, which can cooperate with more mechanical energy generated by the driving device in the utility model, so as to prevent waste of energy, thereby generating higher electric energy conversion efficiency. Therefore, the utility model not only has higher electric energy conversion efficiency, but also generates more electric energy.

Description of drawings

Fig. 1 is the front view of the utility model.

Fig. 2 is a top view of the utility model.

Among the figure: electric storage device 1, driving device 2, fulcrum shaft 21, left driving rod 22, left pedal 221, right driving rod 23, right pedal 231, left crank arm 24, left sliding groove 241, right crank arm 25, right Sliding groove 251, horizontal drive rod 26, transmission device 3, driving gear 31, small transition gear 32, large transition gear 33, power generation device 4, generator 41, motor gear 42, underframe 5, underframe middle beam 51, bottom The left vertical beam 52 of the frame, the right vertical beam 53 of the underframe, the upper beam 54 of the underframe, the lower beam 55 of the underframe, the controller 6, the skeleton 7, the display 8, the left handrail 9, and the right handrail 10.

Detailed ways

The utility model will be described in further detail below in conjunction with the description of the accompanying drawings and specific embodiments

Referring to Fig. 1-Fig. 2, a kind of gravity crank arm type exercise power generator comprises interconnected driving device 2, transmission device 3, power generation device 4 and power storage device 1, and one end of said driving device 2 is connected with chassis 5 The other end is connected with the transmission device 3, the other end of the transmission device 3 is connected with the power generation device 4, and the other end of the power generation device 4 is connected with the power storage device 1; the drive device 2 includes a fulcrum shaft 21, a left drive Rod 22, right drive rod 23, left crank arm 24 and right crank arm 25, described transmission device 3 comprises driving gear 31, small transition gear 32 and large transition gear 33, and described power generation device 4 comprises generator 41 and motor gear 42;

One end of the fulcrum shaft 21 is connected to the underframe middle beam 51 arranged in the middle of the underframe 5, and the other end is penetrated with a horizontal drive rod 26, and the two ends of the horizontal drive rod 26 are respectively movably connected with mutually symmetrical left drive rods. 22 and the right driving rod 23, the other end of the left driving rod 22, the right driving rod 23 is respectively provided with the left pedal 221 and the right pedal 231, and the middle part of the left driving rod 22, the right driving rod 23 is respectively provided with the left crank arm 24, The corresponding left sliding groove 241 and right sliding groove 251 of the right curved arm 25, the other ends of the left curved arm 24 and the right curved arm 25 are connected with the middle part of the driving gear 31, and the outside of the driving gear 31 is meshed with the small transition gear 32 , the middle part of the small transition gear 32 is connected with the middle part of the large transition gear 33, and the outside of the large transition gear 33 is in transmission cooperation with the motor gear 42 provided on the generator 41.

The generator 41 is a permanent magnet generator, and a controller 6 is provided on the power storage device 1 .

The transmission mode of the large transition gear 33 and the motor gear 42 is belt transmission, gear meshing transmission or chain transmission.

The fulcrum shaft 21 is provided with a skeleton 7, and the other end of the skeleton 7 is provided with a display 8; the two ends of the crossbeam 51 in the underframe are respectively fixedly connected with the left vertical beam 52 of the underframe and the right vertical beam 53 of the underframe, and the bottom frame Between the left vertical beam 52 of the frame and the right vertical beam 53 of the underframe, an upper beam 54 and a lower beam 55 of the underframe parallel to the middle beam 51 of the underframe are arranged, and the upper beam 54 of the underframe and the lower beam 55 of the underframe respectively A left handrail 9 and a right handrail 10 are provided.

The principle of the utility model is described as follows:

At present, the fitness equipment power generation device on the market generally adopts the principle of bicycle pedaling, that is, a person sits on a device similar to a bicycle seat and uses his legs to pedal the pedals to make it perform a reciprocating circular motion to generate mechanical energy, and then the generator converts the mechanical energy into electrical energy. This body-building power generation device utilizing the principle of bicycle pedaling is not only easy to make people tired, but also has low conversion efficiency of electric energy. According to a report by Mexico's "Cosmos" on May 2, 2010, in a fitness club in New York City, 20 fitness enthusiasts pedaled stationary bicycles under the encouragement of the coach. Using this system, the per capita output was only 150W electricity.

The utility model is different from it. The core of the utility model is to use the gravity of the human body's own mass or the impulse generated by combining the legs to form a linear motion between the pedal and the horizontal drive rod along the drive rod. The arm cooperates to generate leverage, thereby converting linear motion into rotary motion, and the permanent magnet generator is driven by the transmission device to convert mechanical energy into AC electrical energy, and then the AC is converted into DC by the rectifier controller, and sent to the storage battery. electric device. The whole process mainly uses the kinetic energy generated by the human body and the gravitational potential energy generated by its own mass to generate mechanical energy and electrical energy in sequence, and the operation is simple. When people need electricity, the inverter device converts the electric energy stored in the power storage device into 220V AC for lighting and household appliances. If it is widely used, such as in college dormitories, due to the large number of users, Therefore, the generated electric energy is also large, which can save a lot of energy, reduce the use of unclean power generation methods, and purify the environment. the

During use, any pedal is first driven by the potential energy of the human body gravity or the kinetic energy of the human body combined with the kinetic energy of the legs, such as the downward movement of the left pedal 221, which drives the left drive rod 22 to move downward in a straight line. The part connected with it on the rod 26 is a fulcrum to generate leverage, and this leverage drives one end of the left crank arm 24 inside the left sliding groove 241 on the left driving rod 22 to move linearly along the left sliding groove 241, and simultaneously drives the entire left crank arm 24 makes a circular motion, that is, converts linear motion into rotary motion, thereby driving the driving gear 31 connected to the other end of the left crank arm 24 to rotate, and then the driving gear 31 transmits mechanical energy to the motor gear through the small transition gear 32 and the large transition gear 33 in turn 42, and then drive the generator 41 to generate electricity; the movement mode of the right pedal 231 and the left pedal 221 is the same, and the two pedals alternately move up and down linearly along the line of gravity, which is not only labor-saving, not easy to fatigue, but also easy to generate a large amount of mechanical energy, thereby The permanent magnet motor can be driven, and the generated mechanical energy can be converted into electrical energy with high conversion efficiency, and then the electrical energy can be stored through the electrical storage device 1 , and the storage and subsequent use can be controlled by the controller 6 . Therefore, the utility model is not only easy to operate and not easy to cause fatigue, but also has high conversion efficiency of electric energy and can generate more electric energy.

The calculation formula of the present utility model is as follows:

① Calculation of pedaling power:

Pedaling power (P) = [pedaling gravity (F ₁ ) + pedaling momentary momentum (F ₂ )] × pedaling height of the fall (h) × pedaling frequency (f)

unit:

Stepping power P (1W) = 1Nm/s, s: second;

Stepping gravity F ₁ (N) = [weight G1 (kg) + counterweight G2 (kg)] × 9.8 (N/kg);

Impulse F ₂ (N) at the moment of stepping on the pedal (currently cannot be quantified, not counted temporarily);

Stepping frequency f (times/second);

Calculation example:

It is known that a person weighing 50kg tramples with a counterweight of 20kg, the trample height is 0.32m, and tramples 10 times per minute.

The calculation process is as follows:

Pedaling force F=(50+20)×9.8=686(N)

Stepping on the work height h＝0.32×2＝0.64（m）

Stepping frequency f=10/60=1/6 (times/second)

Stepping power P＝F×h×f＝686×0.64×1/6＝73(W)

②. Calculation of theoretical power generation degree:

1 degree of electricity = 1 kilowatt-hour = 1000 (W) × 3600 (s) = 3.6 x 10 ⁶ (J)

Calculated according to the pedaling power of 73 (W), the electricity generated by pedaling for 1 hour (the loss coefficient is not calculated)

Power generation Q＝73(W)×3600(s)＝2.628×10 ⁵ (J)

Generating degree N＝2.628×10 ⁵ (J)/3.6×10 ⁶ (J)×1 (kWh)＝0.073 (kWh)

③. Calculation of actual power generation:

Calculation of various losses:

η _s = η _f + η _j + η _n + η _c = 0.24

Generator loss η _f = 0.15, mechanical loss η _j = 0.05, inverter loss η _n = 0.02, charging loss η _c = 0.02; actual power generation calculation formula: N real = (1-η _s ) × N .

Calculation example:

N real = (1-η _s ) × N = 0.76 × 0.073 = 0.0555 kWh.

Embodiment 1: The height of stepping drop is 0.32m, stepping on 10 times, 20 times, 30 times and 40 times per minute respectively, for people of different weights.

The pedaling power is calculated as follows:

Calculation of actual power generation:

Embodiment 2: The stepping drop height is 0.35m, stepping on 10 times, 20 times, 30 times and 40 times per minute respectively, for people of different weights.

The pedaling power is calculated as follows:

Calculation of actual power generation:

Embodiment 3: The height of stepping drop is 0.40m, stepping on 10 times, 20 times, 30 times and 40 times per minute respectively, for people of different weights.

The pedaling power is calculated as follows:

Calculation of actual power generation:

Embodiment 4: stepping on a drop height of 0.45m, stepping on 10 times, 20 times, 30 times and 40 times per minute respectively, for people of different weights.

The pedaling power is calculated as follows:

Calculation of actual power generation:

It can be seen from the above that if a person with a body weight of 80kg uses the utility model with a drop of 0.35 meters, he can generate 280W of electric energy by stepping on it 40 times per minute. Significant progress. the

Claims (4)

1. gravity crank arm type body-building power generation device, comprise interconnective drive unit (2), conveying means (3), electricity generating device (4) and electrical storage means (1), one end of described drive unit (2) is connected with underframe (5), the other end is connected with conveying means (3), the other end of conveying means (3) is connected with electricity generating device (4), the other end of electricity generating device (4) is connected with electrical storage means (1), it is characterized in that: described drive unit (2) comprises fulcrum shaft (21), left side driveshaft (22), right driveshaft (23), crank arm (24) in a left side and crank arm in the right side (25), described conveying means (3) comprises driving gear (31), little transition gear (32) and great transition gear (33), described electricity generating device (4) comprise generator (41) and motor gear (42);

One end of described fulcrum shaft (21) is connected with the underframe middle cross beam (51) that is arranged on underframe (5) middle part, the other end runs through and is provided with horizontal driveshaft (26), the two ends of horizontal driveshaft (26) are connected with symmetrical left driveshaft (22) and right driveshaft (23) respectively, left side driveshaft (22), the other end of right driveshaft (23) is respectively arranged with left-hand tread plate (221) and right-hand tread plate (231), left side driveshaft (22), the middle part of right driveshaft (23) is respectively arranged with crank arm with a left side (24), the right side crank arm (25) corresponding left sliding-grooves (241) and right sliding-groove (251), a left side crank arm (24), the crank arm the other end of (25) of the right side is connected with the middle part of driving gear (31), the outside of driving gear (31) is meshed with little transition gear (32), the middle part of little transition gear (32) is connected with the middle part of great transition gear (33), and the outside of great transition gear (33) is gone up motor gear (42) transmission that is provided with generator (41) and cooperated.

2. a kind of gravity crank arm type body-building power generation device according to claim 1, it is characterized in that: described generator (41) is a permanent magnet generator, and electrical storage means (1) is provided with controller (6).

3. a kind of gravity crank arm type body-building power generation device according to claim 1 and 2 is characterized in that: described great transition gear (33) is belt transmission, meshed transmission gear or chain transmission with the transmission fit system of motor gear (42).

4. a kind of gravity crank arm type body-building power generation device according to claim 3, it is characterized in that: described fulcrum shaft (21) is provided with skeleton (7), and the other end of skeleton (7) is provided with display device (8); The two ends of described underframe middle cross beam (51) are fixedly connected with underframe left vertical beam (52) and underframe right vertical beam (53) respectively, be provided with the underframe upper beam (54) and underframe bottom end rail (55) that parallel with underframe middle cross beam (51) between underframe left vertical beam (52) and the underframe right vertical beam (53), be respectively arranged with left handrail (9) and right handrail (10) on underframe upper beam (54) and the underframe bottom end rail (55).

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