阅读说明：本技术 一种基于杠杆的传动系统 (Lever-based transmission system ) 是由 平清禄 于 2021-11-02 设计创作，主要内容包括：本发明涉及动力装置技术领域,尤其是涉及一种基于杠杆的传动系统。基于杠杆的传动系统包括杠杆组、动力输入轮和动力输出轮；所述杠杆组的输入端和输出端分别与动力输入轮和动力输出轮偏心连接。该基于杠杆的传动系统能够将杠杆应用的发电装置中,利用杠杆的省力原理,可以实现用较小的力驱动大功率的发电机进行发电,进而解决了现有技术中因发电装置的动力输出装置输出的力较小无法驱动发电机进行发电的问题。(The invention relates to the technical field of power devices, in particular to a lever-based transmission system. The lever-based transmission system comprises a lever set, a power input wheel and a power output wheel; the input end and the output end of the lever set are respectively connected with the power input wheel and the power output wheel in an eccentric mode. The lever-based transmission system can drive a high-power generator to generate electricity by using a small force in a power generation device with the lever, and further solves the problem that the generator cannot be driven to generate electricity due to the small force output by a power output device of the power generation device in the prior art.)

1. A transmission system based on a lever is characterized by comprising a lever group, a range extender, a power input wheel and a power output wheel;

the input end and the output end of the lever set are respectively connected with the power input wheel and the power output wheel in an eccentric mode.

2. The lever-based transmission system of claim 1, comprising two power output wheels, respectively a first power output wheel and a second power output wheel, and two range extenders, respectively a first range extender and a second range extender;

the lever group comprises a push-pull rod, a labor-saving lever and a swing rod;

one end of the push-pull rod is eccentrically hinged with the power input wheel, and the other end of the push-pull rod is hinged with a power arm of the labor-saving lever;

the resistance arm of the labor-saving lever is connected with the first power output wheel through the first range extender;

one end of the swing rod is rotatably connected with a rack of the transmission system, and the other end of the swing rod is connected with a second power output wheel through a second range extender;

the labor-saving lever and the swing rod are arranged in parallel and are connected through a lever shaft;

one end of the lever shaft is fixedly connected with a fulcrum of the labor-saving lever, the other end of the lever shaft is connected with the swing rod, and the length from a connection point of the swing rod and the lever shaft to the end part of the lever shaft is the same as that of the resistance arm;

the first power output wheel and the second power output wheel are fixed on the same output shaft;

the labor-saving lever and the swing rod swing between a first position and a second position;

when the labor-saving lever and the swing rod swing from a first position to a second position, the resistance arm drives the first power output wheel to rotate along a first semicircular track through the first range extender;

when the labor-saving lever and the swing rod swing from the second position to the first position, the swing rod drives the second power output wheel to rotate along the second semicircular track through the second range extender, and the first semicircular track and the second semicircular track form a circular track.

3. The lever-based transmission system of claim 2, wherein the range extender is a zipper and a strut;

one end of a zipper of the first range extender is hinged with the resistance arm, the other end of the first range extender is eccentrically hinged with the first power output wheel, one end of a strut of the first range extender is hinged with the rack, and the other end of the strut of the first range extender is hinged with the zipper of the first range extender;

one side of the swing rod, which is far away from the second power output wheel, is provided with a reverse positioning wheel, one end of a zipper of the second range extender is hinged with the swing rod after bypassing the positioning wheel on the left side, the other end of the zipper of the second range extender is eccentrically hinged with the second power output wheel, one end of a supporting rod of the second range extender is hinged with the rack, and the other end of the supporting rod is fixedly hinged with the zipper of the second range extender.

4. The lever-based transmission system according to claim 3, wherein a positioning wheel is arranged between the strut and the power take-off wheel, and the center of the positioning wheel is flush with the center of the power take-off wheel.

5. The lever based transmission system according to claim 2, wherein a flywheel is provided at a middle position of the output shaft;

and the output shaft is provided with a load output wheel which is connected with a load.

6. The lever based transmission system of claim 5, wherein the load is a generator.

7. The lever based transmission system of claim 2 further comprising a power input connected to a power input wheel through a gear set;

the gear set comprises a power input pinion and a power input bull gear which are meshed with each other, the power input pinion is connected with a rotating shaft of the power input device, and the power input bull gear and the power input wheel are coaxially arranged and fixed on the same shaft.

Technical Field

The invention relates to the technical field of power devices, in particular to a lever-based transmission system.

Background

At present, the development of clean energy sources becomes a development trend, such as wind power, hydroelectric power and the like, and a generator is used in the power generation process.

The principle of the existing wind power generator, hydroelectric generator and the like is to convert mechanical energy of wind, water and the like into electric energy, but the conversion efficiency is low; taking a wind power generator as an example, the wind power generator generally comprises a vertical axis wind power generator and a horizontal axis wind power generator, both of which drive an impeller to rotate through wind power and further drive a rotor of the generator to rotate through a multistage transmission mechanism to generate power, because of factors such as friction in the transmission process, the transmission efficiency of mechanical energy is low, and the requirement on the minimum level of the wind power is harsh, the wind power generator can be driven to generate power only by generally requiring the wind speed of about 3m/s, and the wind power generation cannot be realized in most regions because the wind speed requirement cannot be met.

That is, in the conventional power generation process, there is a problem that the power output device cannot drive the generator to generate power because the output force is small.

Disclosure of Invention

The invention aims to provide a lever-based transmission system, which can solve the problem that a power output device in the prior art cannot drive a generator to generate power because the output force is small;

the invention provides a lever-based transmission system, which comprises a lever group, a power input wheel and a power output wheel, wherein the lever group comprises a first lever, a second lever and a third lever;

the input end and the output end of the lever set are respectively connected with the power input wheel and the power output wheel in an eccentric mode.

Preferably, the lever-based transmission system comprises two power output wheels and two range extenders, wherein the two power output wheels are respectively a first power output wheel and a second power output wheel, and the two range extenders are respectively a first range extender and a second range extender;

the lever group comprises a push-pull rod, a labor-saving lever and a swing rod;

one end of the push-pull rod is eccentrically hinged with the power input wheel, and the other end of the push-pull rod is hinged with a power arm of the labor-saving lever;

the resistance arm of the labor-saving lever is connected with the first power output wheel through the first range extender;

one end of the swing rod is rotatably connected with a rack of the transmission system, and the other end of the swing rod is connected with a second power output wheel through a second range extender;

the labor-saving lever and the swing rod are arranged in parallel and are connected through a lever shaft;

one end of the lever shaft is fixedly connected with a fulcrum of the labor-saving lever, the other end of the lever shaft is connected with the swing rod, and the length from a connection point of the swing rod and the lever shaft to the end part of the lever shaft is the same as that of the resistance arm;

the first power output wheel and the second power output wheel are fixed on the same output shaft;

the labor-saving lever and the swing rod swing between a first position and a second position;

when the labor-saving lever and the swing rod swing from a first position to a second position, the resistance arm drives the first power output wheel to rotate along a first semicircular track through the first range extender;

when the labor-saving lever and the swing rod swing from the second position to the first position, the swing rod drives the second power output wheel to rotate along the second semicircular track through the second range extender, and the first semicircular track and the second semicircular track form a circular track.

Preferably, the range extender is a zipper and a support rod;

one end of a zipper of the first range extender is hinged with the resistance arm, the other end of the first range extender is eccentrically hinged with the first power output wheel, one end of a strut of the first range extender is hinged with the rack, and the other end of the strut of the first range extender is fixedly hinged with the zipper of the first range extender;

one side of the swing rod, which is far away from the second power output wheel, is provided with a reverse positioning wheel, one end of a zipper of the second range extender is hinged with the swing rod after bypassing the positioning wheel on the left side, the other end of the zipper of the second range extender is eccentrically hinged with the second power output wheel, one end of a supporting rod of the second range extender is hinged with the rack, and the other end of the supporting rod is fixedly hinged with the zipper of the second range extender.

Preferably, a positioning wheel is arranged between the support rod and the power output wheel, and the circle center of the positioning wheel is flush with the circle center of the power output wheel.

Preferably, a flywheel is arranged in the middle of the output shaft;

and the output shaft is provided with a load output wheel which is connected with a load.

Preferably, the load is a generator.

Preferably, the power input device is further included and is connected with the power input wheel through a gear set;

the gear set comprises a power input pinion and a power input bull gear which are meshed with each other, the power input pinion is connected with a rotating shaft of the power input device, and the power input bull gear and the power input wheel are coaxially arranged and fixed on the same shaft.

Has the advantages that:

the lever-based transmission system can drive a high-power generator to generate electricity by using a small force in a power generation device with the lever, and further solves the problem that the generator cannot be driven to generate electricity due to the small force output by a power output device of the power generation device in the prior art.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a lever-based transmission system according to an embodiment of the present invention.

Description of reference numerals:

1: power input wheel, 2: push-pull rod, 3: laborsaving lever, 4: swing stem, 5: lever shaft, 6: first range extender, 7: second range extender, 8: first power output wheel, 9: second power output wheel, 10: output shaft, 11: a zipper; 12: a strut; 13: a reverse positioning wheel; 14: positioning wheels; 16: a flywheel; 17: a load output wheel; 18: a generator; 19: a power input pinion; 20: the power is input into the bull gear.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the present embodiment provides a lever-based transmission system including a lever set, a power input wheel 1, and a power output wheel.

The input end and the output end of the lever group are respectively connected with the power input wheel 1 and the power output wheel in an eccentric mode.

In the power generation device using the lever based transmission system, the lever can be used, and the power generation device can drive a high-power generator to generate power by using a small force by utilizing the labor-saving principle of the lever, so that the problem that the power generation device cannot be driven to generate power by the small force output by the power output device of the power generation device in the prior art is solved.

Specifically, the lever-based transmission system comprises two power output wheels and two range extenders, wherein the two power output wheels are respectively a first power output wheel 8 and a second power output wheel 9, and the two range extenders are respectively a first range extender 6 and a second range extender 7.

The lever group comprises a push-pull rod 2, a labor-saving lever 3 and a swing rod 4.

One end of the push-pull rod 2 is eccentrically hinged with the power input wheel 1, and the other end of the push-pull rod 2 is hinged with a power arm of the labor-saving lever 3.

The resistance arm of the labor-saving lever 3 is connected with a first power output wheel 8 through a first range extender 6.

One end of the swing rod 4 is rotatably connected with a frame of the transmission system, and the other end of the swing rod is connected with a second power output wheel 9 through a second range extender 7.

The labor-saving lever 3 and the swing rod 4 are arranged in parallel and connected through a lever shaft 5.

One end of the lever shaft 5 is fixedly connected with the fulcrum of the labor-saving lever 3, the other end of the lever shaft 5 is connected with the swing rod 4, and the length from the connection point of the swing rod 4 and the lever shaft 5 to the end part of the lever shaft 5 is the same as that of the resistance arm.

The first power take-off wheel 8 and the second power take-off wheel 9 are fixed on the same output shaft 10.

The labor-saving lever 3 and the swing rod 4 swing between a first position and a second position.

When the labor-saving lever 3 and the swing rod 4 swing from the first position to the second position, the resistance arm drives the first power output wheel 8 to rotate along the first semicircular track through the first range extender 6.

When the labor-saving lever 3 and the swing rod 4 swing from the second position to the first position, the swing rod 4 drives the second power output wheel 9 to rotate along the second semicircular track through the second range extender 7, and the first semicircular track and the second semicircular track form a circular track.

In transmission system, need the rotation of the resistance arm drive power take-off wheel through laborsaving lever 3, because the length of resistance arm is shorter, when power take-off wheel's size is great, can't drive power take-off wheel and carry out the whole circle and rotate, so, realize through setting up the range extender that resistance arm drives power take-off wheel and rotates. Although the range extender can be arranged under certain specific conditions, the resistance arm can drive the power output wheel to rotate. However, when the size of the power output wheel is further increased, the resistance arm cannot drive the power output wheel to rotate in a full circle through the range extender. Based on this, the present embodiment employs the laborsaving lever 3 and the swing lever 4 which are linked, and the first power output wheel 8 and the second power output wheel 9 which are linked. The labor-saving lever 3 drives the first power output wheel 8 to rotate for a half turn through the first range extender 6, at the moment, the second power output wheel 9 only follows up, and then the swing rod 4 drives the second power output wheel 9 to rotate for a half turn through the second range extender 7, at the moment, the first power output wheel 8 follows up. Under the action of the labor-saving lever 3 and the swing rod 4, the first power output wheel 8 and the second power output wheel 9 alternately rotate for half a circle (the half circle rotation refers to active rotation, it can be understood that when one power output wheel rotates actively, the other power output wheel follows up), and finally the two power output wheels rotate circularly, namely, the larger power output wheel is driven by the shorter resistance arm to rotate completely.

In the embodiment, a structural form of the range extender is provided, and the range extender is a zipper 11 and a support rod 12;

one end of the first range extender zipper is hinged with the resistance arm, the other end of the first range extender zipper is eccentrically hinged with the first power output wheel, one end of the supporting rod of the first range extender is hinged with the rack, and the other end of the supporting rod of the first range extender zipper is connected with the first range extender zipper.

One side of the swing rod, which is far away from the second power output wheel, is provided with a reverse positioning wheel 13, one end of a zipper of the second range extender is hinged with the swing rod after bypassing the positioning wheel on the left side, the other end of the zipper of the second range extender is eccentrically hinged with the second power output wheel, one end of a supporting rod of the second range extender is hinged with the rack, and the other end of the supporting rod of the second range extender is hinged with the zipper of the second range extender.

The matching of the zipper 11 and the support rod 12 is equivalent to increasing the stroke of the swing rod and the resistance arm, and the longer the support rod 12 is, the longer the stroke is. Namely, the function of increasing the range is realized.

A positioning wheel 14 is arranged between the supporting rod 11 and the power output wheel, the circle center of the positioning wheel 14 is flush with that of the power output wheel, and the zipper 11 is connected with the first power output wheel 8 and the second power output wheel 9 after penetrating through the positioning wheel. With the zipper being below the positioning wheel 14 and moving along the positioning wheel 14.

When the first power output wheel 8 and the second power output wheel 9 are in a stationary state, a point on the left side of the two wheels is a point a, and a point on the rightmost side of the two wheels is a point B.

The first range extender drives the first power output 8 to rotate from the point A to the point B, and the second range extender drives the second power output wheel to rotate from the point A to the point B. That is to say both the first power take-off wheel and the second power take-off wheel are pulled from point a. If the locating wheel is not arranged, the stay cable obliquely upwards pulls the power output wheel at the position of the A point, and the power output wheel is likely to overturn, so that the locating wheel 14 is arranged, and the overturn of the power output wheel is avoided.

A flywheel 16 is provided at a middle position of the output shaft 10.

The output shaft 10 is provided with a load output wheel 17, and the load output wheel 17 is connected with a load. The load is a generator 18.

The lever-based transmission system also comprises a power input device, and the power input device is connected with the power input wheel 1 through a gear set;

the gear set comprises a power input pinion 19 and a power input gearwheel 20 which are meshed with each other, the power input pinion 19 is connected with a rotating shaft of the power input device, and the power input gearwheel 20 and the power input wheel 1 are coaxially arranged and fixed on the same shaft.

The power input device can be a motor, a wind power generation blade, a hydroelectric generation impeller, a steam turbine and the like, namely, any device capable of generating power is sufficient.

In order to further explain the lever-based transmission system, the present embodiment also provides a specific application scenario of the lever-based transmission system.

In the present embodiment, for the convenience of understanding, the power input device is an electric motor, the power of the electric motor is 1.1 kw and 220 v 1450 rpm, a power input pinion 19 is mounted on the electric motor, the power input pinion 19 is engaged with a power input gearwheel 20, the diameter of the power input pinion is 100 mm, and the diameter of the power input gearwheel is 500 mm. The large power input gear 19 is coaxially provided with a power input wheel 1 with the diameter of 250 mm, the outer edge of the power input wheel 1 is hinged with one end of a push-pull rod 2 through a fisheye bearing, the other end of the push-pull rod 2 is hinged with a power arm of a labor-saving lever 3 through the fisheye bearing, the length of the power arm of the labor-saving lever is 500 mm, and the length of a resistance arm is 100 mm. The joint of the power arm and the resistance arm (the branch point of the labor-saving lever) is fixed on the transmission system frame through a bearing.

One end of a zipper of the first range extender 6 is fixed on the resistance arm, the other end of the zipper penetrates through the positioning wheel 14 to be hinged with the output wheel, one end of a supporting rod is hinged on the rack between the resistance arm and the output wheel, the other end of the supporting rod is hinged with the zipper, the length of the supporting rod determines the diameter of the output wheel, and the height of the positioning wheel is parallel to that of the output shaft. The first range extender is used for increasing the stroke of the resistance arm, namely amplifying the swinging distance of the resistance arm, so as to achieve the purpose of increasing the diameter of the output wheel. The range extender comprises a chain, a support rod and a positioning wheel, and the second range extender also comprises a reverse positioning wheel on the left side of the resistance arm.

The first range extender 6 drives the first power output wheel 8 to rotate along the upper half-circle track, the second range extender 7 drives the second power output wheel to rotate along the lower half-circle track, and the upper half-circle track and the lower half-circle track are in 180-degree reverse symmetry. Two power take-off wheels cooperate with the flywheel to complete circumferential rotation, thereby realizing the purposes of increasing the range of the resistance arm and increasing the diameter of the take-off wheel.

Two ends of the output shaft are respectively provided with a power output wheel, and the middle of the shaft is provided with a flywheel. A load output wheel is also mounted on the output shaft, the load output wheel is a sprocket with the diameter of 100 mm, and the chain is connected with a generator 18.

The 1.1 kilowatt 220V motor 1450 rotates per minute by 7.2 nm, after 5-to-1 speed change is carried out between the power input pinion 19 and the power input gear 20, the rotating speed of the power input pinion 19 reaches 290 revolutions, the product of the rotating speed and the rotating speed is that the torque 7.2 x 2 of the power input wheel 1 is 14.4 nm, the product of the torque is multiplied by 2, the torque is multiplied by the lever proportional relation 5, and the force 14.4 x 5 of the resistance arm is multiplied by 72 nm. The diameter of the range extender range-extended output wheel is 300 mm, which is 6 times of the 50 mm stroke of the resistance arm, and 72 x 6 is 432 torsm moment. The requirement of a 3 kilowatt generator on the torque of 95 Nm is met. Meanwhile, the 1450-rotation motor is changed in speed ratio of 5 to 1, the rotating speed is changed from 1450 to 290 revolutions per minute, and the requirement of the generator for 3 kilowatts, 95 Nm and 300 revolutions is met. The lever is a force transmission means but it can turn the output wheel into torque by pulling the range extender one hundred percent of the force (removing mechanical losses).

It should be noted that: the transmission system can be used independently, and can also be used in series with a plurality of groups, such as two groups, three groups and four groups, the combination of the four groups uses the torque force multiplication, the power of the generator is increased, but the power of the motor can be unchanged, and the purpose that the small-power motor drives the large generator through mechanical transmission is realized.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.