CN115056909A - Electric vehicle power assisting device and electric vehicle - Google Patents
Electric vehicle power assisting device and electric vehicle Download PDFInfo
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- CN115056909A CN115056909A CN202210812292.3A CN202210812292A CN115056909A CN 115056909 A CN115056909 A CN 115056909A CN 202210812292 A CN202210812292 A CN 202210812292A CN 115056909 A CN115056909 A CN 115056909A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 40
- 238000005381 potential energy Methods 0.000 claims abstract description 3
- 230000007246 mechanism Effects 0.000 claims description 57
- 230000005540 biological transmission Effects 0.000 claims description 18
- 230000009471 action Effects 0.000 claims description 4
- 238000013016 damping Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
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- 230000008859 change Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 abstract description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 210000000078 claw Anatomy 0.000 description 11
- 230000008569 process Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/80—Accessories, e.g. power sources; Arrangements thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/08—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching or like movements, e.g. from the vibrations of a machine
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- Mechanical Operated Clutches (AREA)
Abstract
The invention provides an electric vehicle power assisting device which comprises a driven chain wheel and an energy conversion structure under the condition that a storage battery is not replaced, wherein the energy conversion structure is arranged on a wheel frame and connected with a vehicle body, the driven chain wheel is sleeved on a wheel shaft of an electric vehicle, the energy conversion structure is connected with the driven chain wheel and converts potential energy generated by bumping and vibrating of the electric vehicle into kinetic energy to be transmitted to the driven chain wheel, and the driven chain wheel drives wheels to rotate to realize power assisting. The beneficial technical effects of the invention are as follows: the energy that jolts the vibrations that the in-process took place because various reasons through the energy conversion structure with the electric motor car and produce is converted into the power that the electric motor car gos forward, need not change on-vehicle battery and just can increase the electric motor car continuation of journey distance of certain degree, because this device is pure mechanical structure, neither increased the capacity of battery nor used the fuel, pollution-free, consequently energy-concerving and environment-protective more.
Description
Technical Field
The invention discloses an electric vehicle power assisting device and an electric vehicle, and belongs to the technical field of electric vehicles.
Background
The two-wheeled electric motor car is a vehicle that often uses among people's daily life, and current two-wheeled electric motor car generally adopts the battery power supply, wants to improve the duration of a journey of electric motor car and just generally will change bigger battery, under the condition of not changing the battery, how to improve the duration of a journey, is the major problem that each big electric motor car enterprise letter was waited to solve.
In the process of riding the two-wheeled electric vehicle, the vehicle body can generate bumping vibration due to various reasons such as acceleration and deceleration, braking or starting and even rugged road, and the bumping vibration is generally generated by converting vibration energy into heat energy by a damping structure and then radiating the heat energy to the atmosphere.
The two-wheeled electric motor car is marchd the vibrations that the in-process produced and can lead to the bolt not hard up to and shock-absorbing structure metal fatigue is ageing with higher speed, to how to alleviate the harm that vibrations brought, prior art does not have good method.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the power assisting device of the electric vehicle, which can convert kinetic energy generated by bumping and shaking in the running process of the two-wheeled electric vehicle into advancing kinetic energy of the two-wheeled electric vehicle under the condition of not replacing a storage battery, thereby reducing the frequency of shaking, reducing the damage caused by shaking and improving the cruising distance of the two-wheeled electric vehicle.
The technical scheme of the invention is as follows: the power assisting device of the electric vehicle comprises a driven chain wheel and an energy conversion structure, wherein the energy conversion structure is arranged on a wheel frame and is connected with a vehicle body, the driven chain wheel is sleeved on a wheel shaft of the electric vehicle, the energy conversion structure is connected with the driven chain wheel and converts potential energy generated by bumping and shaking of the electric vehicle into kinetic energy to be transmitted to the driven chain wheel, and the driven chain wheel drives wheels to rotate to realize power assisting.
The energy conversion structure is arranged on the wheel frame, namely on the front wheel frame or/and the rear wheel frame.
Furthermore, the energy conversion structure comprises a chain wheel, a receiving conversion part, a transmission chain and a clutch, the chain wheel is rotatably arranged on a fixed shaft, the fixed shaft is arranged on the wheel frame, a driven chain wheel is connected with the chain wheel through the transmission chain, the receiving conversion part is driven by kinetic energy generated when the vehicle body is pressed down and then reset to drive the chain wheel to rotate, and the clutch is used for keeping the receiving conversion part and the chain wheel in a connected or separated state.
Further, the receiving and converting portion comprises an annular ratchet mechanism and a transmission rod, the annular ratchet mechanism is sleeved on the toothed disc shaft, the transmission rod comprises a ratchet arm and a vehicle body rod, the ratchet arm is fixedly connected with the outer ring of the annular ratchet mechanism, a sliding groove is formed in the ratchet arm, one end of the vehicle body rod is arranged in the sliding groove in a sliding mode, the other end of the vehicle body rod is connected with the vehicle body, when the vehicle body is pressed down due to jolt and vibration, the vehicle body rod synchronously moves with the vehicle to drive the annular ratchet mechanism to idle, and when the vehicle body resets under the effect of the damping structure, the vehicle body rod synchronously moves with the vehicle to drive the annular ratchet mechanism to rotate and further drive the toothed disc connected with the vehicle to synchronously rotate, so that the wheels are driven to rotate to achieve assistance.
Further, the clutch comprises a latch arranged on the gear wheel shaft, a clamping groove arranged on the inner ring surface of the annular ratchet mechanism, a clutch pressure spring, a clutch wire and a clutch handle, the annular ratchet mechanism and the gear wheel are coaxial, the clutch pressure spring is used for keeping the clamping groove and the clamping teeth meshed, a clutch handle is arranged on the electric vehicle, one end of a clutch wire is connected with an annular ratchet mechanism, the other end of the clutch wire is connected with the handle, a gear ring and the clamping teeth are in a meshed state by default, the annular ratchet mechanism is fixedly connected with the periphery of the toothed disc, the power assisting device works normally, the handle is stirred, the clutch wire drives the clamping groove to be separated from the clamping teeth, the annular ratchet mechanism is separated from the toothed disc, the annular ratchet mechanism idles, and the power assisting device stops working, the clutch controls the connection state of the annular ratchet mechanism and the chain wheel, thereby controlling the use and the closing of the device.
Further, the clutch comprises a shift lever, a shift lever cap, a first end face slope-shaped fluted disc, a second end face slope-shaped fluted disc, a clutch wire and a clutch handle, a shift lever chute is arranged on a shaft seal of the annular ratchet mechanism, the shift lever is arranged on a pawl in the annular ratchet mechanism and is positioned in the shift lever chute, the shift lever cap is provided with a conical inner cavity which is sleeved on the end face of the annular ratchet mechanism, a spring is arranged in the shift lever cap, the shift lever is pressed by the inclined plane of the conical inner cavity to move along the chute when the shift lever cap is tightly attached to the annular ratchet mechanism, the pawl is driven by the shift lever to be separated from the ratchet wheel, when the shift lever cap leaves the annular ratchet mechanism under the action of the spring, the pawl is driven by a top spring to reset and is meshed with the ratchet wheel, the shift lever is driven by the pawl to reset synchronously, the end face of the first end face slope-shaped fluted disc is connected with the shift lever cap, the tooth face is meshed with the second end face slope-shaped fluted disc, the second end face slope-shaped fluted disc is fixed on the disc shaft or the wheel frame, one end of the clutch wire is connected with the first end face slope fluted disc, the other end of the clutch wire is connected with the clutch handle, the first end face slope fluted disc is driven to deflect circumferentially relative to the second end face slope fluted disc by dialing the clutch handle, the dialing rod cap is driven to move, and the connection and the separation of the first end face slope fluted disc and the end face of the annular ratchet mechanism are controlled.
Furthermore, the receiving and converting part comprises an end face ratchet disc and a driving rod, the end face ratchet disc is sleeved on the chain wheel, one end of the driving rod is connected with the vehicle body, a clamping jaw is arranged at the other end of the driving rod and meshed with the end face ratchet disc, when the vehicle body is pressed down due to jolting and vibration, the driving rod moves synchronously with the vehicle, the clamping jaw slides on the end face ratchet disc, and when the vehicle body resets, the clamping jaw drives the end face ratchet disc to rotate so as to drive the chain wheel fixedly connected with the clamping jaw to rotate synchronously, so that the wheel is driven to move forwards.
Furthermore, the clutch comprises a clutch wire and a clutch handle, the clutch handle is arranged on the electric vehicle, one end of the clutch wire is connected with the clamping jaw, the other end of the clutch wire is connected with the handle, when the clamping jaw is in a meshed state with the end face ratchet disc, the power assisting device normally works, the handle is stirred, the clutch wire drives the clamping jaw to be separated from the end face ratchet disc, the end face ratchet disc is free in circumferential direction, the power assisting device stops working, and the connection state of the clamping jaw and the end face ratchet disc is controlled through the clutch, so that the device is controlled to be used and closed.
Furthermore, the receiving and converting part further comprises a driving pedal rod, one end of the driving pedal rod is provided with a pedal for treading, the other end of the driving pedal rod is provided with a rack, the driving pedal rod is installed at the bottom of the wheel frame through a rotating shaft, the rack is meshed with the end face ratchet disc, and the pedal is treaded to drive the rack to move to drive the end face ratchet disc to rotate by utilizing the lever principle, so that the wheel is driven to rotate to move forwards.
The embodiment of the invention also provides an electric vehicle which comprises an electric vehicle body, and the electric vehicle body further comprises the electric vehicle power assisting device.
The beneficial technical effects of the invention are as follows: the energy that jolts the vibrations production that takes place because various reasons in with the electric motor car driving process through the energy conversion structure turns into the electric motor car power that gos forward, need not change on-vehicle battery and just can increase the electric motor car range of certain degree, because this device is pure mechanical structure, neither increase the capacity of battery nor use the fuel, pollution-free, energy-concerving and environment-protective more.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic diagram of a clutch according to the present invention;
FIG. 3 is a top view of a clutch according to the present invention;
FIG. 4 is an exploded view of one clutch configuration of the present invention;
FIG. 5 is a schematic structural view of another clutch of the present invention;
FIG. 6 is a top view of another clutch configuration of the present invention;
FIG. 7 is an exploded view of another clutch configuration of the present invention;
FIG. 8 is a detail view of another clutch of the present invention;
FIG. 9 is another schematic structural view of the present invention;
FIG. 10 is a top view of another structure of the present invention;
FIG. 11 is a side view of another construction of the present invention;
FIG. 12 is an exploded view of another construction of the present invention;
FIG. 13 is a schematic view of an end ratchet disk configuration in another configuration of the present invention;
fig. 14 is a schematic structural view of a toggle lever cap in another clutch of the present invention.
In the figure: 1. driven sprocket, 2, energy conversion structure, 21, chain wheel, 22, receiving conversion portion, 2201, annular ratchet mechanism, 2202, transmission pole, 22021, ratchet arm, 220211, spout, 22022, automobile body pole, 2203, terminal surface ratchet dish, 2204, driving pole, 2205, jack catch, 23, clutch, 231, driving lever, 232, driving lever cap, 233, first terminal surface slope fluted disc, 234, second terminal surface slope fluted disc, 235, driving lever spout, 2301, latch, 2302, draw-in groove.
Detailed Description
The present invention will be further described with reference to the following detailed description, wherein the drawings are for illustrative purposes only and are not intended to be limiting, wherein certain elements may be omitted, enlarged or reduced in size, and are not intended to represent the actual dimensions of the product, so as to better illustrate the detailed description of the invention.
In order to make the technical means, the original characteristics, the achieved objects and the functions of the present invention easy to understand, in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or the positional relationship based on the orientation or the positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed in a specific orientation and operation, and thus not be understood as limiting the present invention, and furthermore, the terms "first", "second" and "third" are only used for descriptive purposes and not to indicate or imply relative importance, and the present invention is further explained below with reference to the specific embodiments.
Example 1
The power assisting device for the electric vehicle shown in fig. 1 to 12 comprises a driven sprocket wheel 1 and an energy conversion structure 2, wherein the energy conversion structure 2 is arranged on a wheel frame and is connected with a vehicle body, the driven sprocket wheel 1 is sleeved on a wheel shaft of the electric vehicle, the energy conversion structure 2 is connected with the driven sprocket wheel 1 and converts kinetic energy generated by bumping and shaking of the electric vehicle to be transmitted to the driven sprocket wheel 1, and the driven sprocket wheel 1 drives wheels to rotate so as to enable the electric vehicle to move forwards.
The energy conversion structure 2 is arranged on the wheel frame, namely on the front wheel frame or/and the rear wheel frame, and the energy conversion structure 2 can be arranged.
Example 2
As shown in fig. 1 to 12, as a specific configuration of the energy conversion structure 2 in embodiment 1, the energy conversion structure 2 includes a chain wheel 21, a receiving conversion portion 22, a transmission chain, and a clutch 23, the chain wheel 21 is rotatably disposed on a fixed shaft, the fixed shaft is mounted on a wheel frame, the driven sprocket 1 is connected to the chain wheel 21 through the transmission chain, the receiving conversion portion 22 is driven by the power of the vehicle body pressed down to return to drive the chain wheel 21 to rotate, and the clutch 23 is used for keeping the receiving conversion portion 22 connected to or separated from the chain wheel 21.
The receiving and converting part 22 comprises an annular ratchet mechanism 2201 and a transmission rod 2202, the annular ratchet mechanism 2201 is sleeved on the shaft of the chain wheel 21, the transmission rod 2202 comprises a ratchet arm 22021 and a vehicle body rod 22022, the ratchet arm 22021 is fixedly connected with the outer ring of the annular ratchet mechanism 2201, a sliding groove 220211 is formed in the ratchet arm 22021, one end of the vehicle body rod 22022 is arranged in the sliding groove 220211 in a sliding mode, the other end of the vehicle body rod 22022 is connected with a vehicle body, when the vehicle body is pressed down due to bumping vibration, the vehicle body rod 22022 moves synchronously with the vehicle, the ratchet arm 22021 is pressed down to drive the annular ratchet mechanism 2201 to idle, and when the vehicle body is reset, the vehicle body rod 22022 moves synchronously with the vehicle body to drive the annular ratchet mechanism 2201 to rotate so as to drive the chain wheel 21 fixedly connected with the vehicle body to rotate synchronously, and further drive the wheel to rotate to realize boosting.
Example 3
As shown in fig. 2 to 4, as a concrete structure of the clutch 23 in embodiment 2, the clutch 23 includes a latch 2301 disposed on an axis of a toothed disc 21, a slot 2302 disposed on an inner annular surface of an annular ratchet mechanism 2201, a clutch pressure spring, a clutch wire, and a clutch handle, the annular ratchet mechanism 2201 is coaxial with the toothed disc 21 and circumferentially fixed to the toothed disc 21 by the restriction of the latch 2301 and the slot 2302, and is axially slidably connected, the clutch pressure spring is used for keeping the slot 2302 engaged with the latch 2301, the clutch handle is disposed on the electric vehicle, one end of the clutch wire is connected to the annular ratchet mechanism 2201, the other end is connected to the handle, the slot and the latch 2301 are default in an engaged state, the annular ratchet mechanism 2201 is circumferentially fixed to the toothed disc 21, the power assisting device normally operates, the handle is toggled, the clutch wire drives the slot 2302 to be disengaged from the latch 2301, and the annular ratchet mechanism 2201 is disengaged from the toothed disc 21, the annular ratchet mechanism 2201 idles, the power assisting device stops working, and the connection state of the annular ratchet mechanism 2201 and the chain wheel 21 is controlled through the clutch, so that the use and the closing of the device are controlled.
Example 4
As shown in fig. 5 to 8 and fig. 14, as another specific structure of the clutch 23 in embodiment 2, the clutch 23 includes a shift lever 231, a shift lever cap 232, a first end-face slope-shaped toothed disc 233, a second end-face slope-shaped toothed disc 234, a clutch wire, and a clutch handle, a shift lever chute 235 is disposed on a shaft seal of the annular ratchet mechanism 2201, the shift lever 231, a pawl disposed on the annular ratchet mechanism 2201 and located in the shift lever chute 235, the shift lever cap 232 has a tapered inner cavity which is fitted over an end face of the annular ratchet mechanism 2201, a spring is disposed in the shift lever cap 232, when the shift lever cap 232 is tightly attached to the annular ratchet mechanism 2201, the shift lever 231 is pressed by the inclined face of the tapered inner cavity to move along the shift lever chute 235, the pawl is driven by the shift lever 231 to be separated from the ratchet, when the shift lever cap 232 leaves the annular ratchet mechanism 2201 under the action of the spring, the pawl is driven by the spring to be reset and engaged with the ratchet, the shift lever 231 is driven by the pawl to be reset synchronously, the end surface of the first end surface slope fluted disc 233 is connected with the deflector rod cap 232, the tooth surface is meshed with the second end surface slope fluted disc 234, the second end surface slope fluted disc 234 is fixed on a fluted disc shaft or a wheel frame, one end of the clutch wire is connected with the first end surface slope fluted disc 233, the other end is connected with the clutch handle, the first end face slope fluted disc 233 is driven to deflect circumferentially relative to the second end face slope fluted disc 234 by the shifting clutch handle, the shifting rod cap 232 is driven to move, the connection and the separation of the shifting rod cap and the end face of the annular ratchet mechanism 2201 are controlled, since the first end face bevel gear plate 233 and the second end face bevel gear plate 234 are engaged with each other, when they are deflected relative to each other, the distance between the first end bevel toothed disc 233 and the second end bevel toothed disc 234 increases, when the second end bevel gear plate 234 is stationary, the first end bevel gear plate 233 is axially displaced by a distance less than the tooth height.
The working principle is as follows: during the riding process of the electric vehicle, the vehicle body bumps, the vertical bump is absorbed and buffered by the shock absorption rod, the kinetic energy is converted into heat energy to be dissipated, the driven sprocket 1 is arranged on the wheel shaft, the energy conversion structure 2 is arranged on the wheel frame, when the vehicle body bumps, the vehicle body is pressed downwards and then is reset by the shock absorption rod, the energy conversion structure 2 is driven by the kinetic energy to drive the driven sprocket 1 to rotate, the wheels are driven to rotate, the vehicle moves forwards, because the annular ratchet mechanism 2201 is fixedly connected with the chain wheel 21, the chain wheel 21 synchronously rotates when the annular ratchet mechanism 2201 rotates, the gear ratio value is adjusted by using the large-diameter high-tooth-number chain wheel 21 and the small-diameter low-tooth-number driven sprocket 1, so as to control the transmission efficiency, for example, the gear ratio of the chain wheel 21 is 55, the gear number of the driven sprocket 1 is 11, and the gear ratio is 55/11 is 5, which means that the chain wheel 21 rotates by a tooth angle, the driven chain wheel 1 rotates by 5 teeth angles to drive wheels to synchronously rotate by 5 teeth displacement, so that the force of pressing the vehicle body is converted into the power of advancing the vehicle body, and the cruising distance of the electric vehicle is further improved.
Example 5
As shown in fig. 9 to 13, an electric vehicle power assisting device includes a driven sprocket 1 and an energy conversion structure 2, wherein the energy conversion structure 2 is disposed on a wheel frame and connected to a vehicle body, the driven sprocket 1 is sleeved on a wheel shaft of an electric vehicle, the energy conversion structure 2 is connected to the driven sprocket 1 and converts kinetic energy generated by jolt and vibration of the electric vehicle to be transmitted to the driven sprocket 1, and the driven sprocket 1 drives wheels to rotate to realize power assisting.
The energy conversion structure 2 comprises a chain wheel 21, a receiving conversion part 22, a transmission chain and a clutch 23, wherein the chain wheel 21 is arranged on a wheel frame through a rotating shaft, a driven chain wheel 1 is connected with the chain wheel 21 through the transmission chain, the receiving conversion part 22 is driven by the power of the downward pressing reset of the vehicle body to drive the chain wheel 21 to rotate, and the clutch 23 is used for enabling the receiving conversion part 22 to be kept connected or separated with the chain wheel 21.
The receiving and converting part 22 comprises an end face ratchet disc 2203 and a driving rod 2204, the end face ratchet disc 2203 is sleeved on the chain wheel 21, one end of the driving rod 2204 is connected with the vehicle body, the other end of the driving rod 2204 is provided with a claw 2205 which is meshed with the end face ratchet disc 2203, when the vehicle body is pressed down due to bumping and vibration, the driving rod 2204 synchronously moves along with the vehicle, the claw 2205 slides on the end face ratchet disc 2203, when the vehicle body is reset, the driving rod 2204 synchronously resets along with the vehicle, the claw 2205 is meshed with the end face ratchet disc 2203 to further drive the end face ratchet disc 2203 to rotate, and the chain wheel 21 fixedly connected with the claw 2203 rotates synchronously, so that the wheel is driven to rotate to realize power assistance.
The clutch 23 comprises a clutch wire and a clutch handle, the clutch handle is arranged on the electric vehicle, one end of the clutch wire is connected with a claw 2205, the other end of the clutch wire is connected with the handle, when the claw 2205 is in a meshed state with the end face ratchet disc 2203, the power assisting device normally works, the handle is stirred, the clutch wire drives the claw 2205 to be separated from the end face ratchet disc 2203, the end face ratchet disc 2203 is free in the circumferential direction, the power assisting device stops working, the connection state of the claw 2205 and the end face ratchet disc 2203 is controlled through the clutch, and therefore the device is controlled to be used and closed.
The working principle is as follows: in the process of riding the electric vehicle, when bumping occurs, the vehicle body is pressed downwards, the jaw 2205 is pressed downwards synchronously along with the driving rod 2204, the jaw 2205 slides on the end face ratchet disc 2203, when the vehicle body is reset, the jaw 2205 is locked with the end face ratchet disc 2203, the end face ratchet disc 2203 is driven to rotate by the jaw 2205, the chain wheel 21 rotates synchronously and transmits the rotation quantity to the driven chain wheel 1 through the transmission chain to drive the wheel to rotate, so that the vehicle moves forwards, the end face ratchet disc 2203 and the chain wheel 21 have the same rotation number, the tooth ratio value is adjusted by using the large-diameter high-tooth-number chain wheel 21 and the small-diameter low-tooth-number driven chain wheel 1, so as to control the transmission efficiency, if the chain wheel 21 adopts the tooth number of 44, the tooth number of the driven chain wheel 1 is 11, and the tooth ratio of 44/11 is equal to 4, which means that the chain wheel 21 rotates by a tooth angle, and the driven flywheel rotates by 4 tooth angles, the wheels are driven to synchronously rotate by 4 teeth displacement, so that the cruising distance of the electric vehicle is improved.
Example 6
As a preferable scheme of the embodiment 5, the receiving and converting portion 22 further includes a driving pedal rod, one end of the driving pedal rod is provided with a pedal for pedaling, the other end of the driving pedal rod is provided with a claw, the driving pedal rod is installed at the bottom of the wheel frame through a rotating shaft, the claw is meshed with the end face ratchet disc, and by using a lever principle, the pedal is pedaled to drive the claw to displace so as to drive the end face ratchet disc to rotate, so as to drive the wheel to rotate and move forward.
The above embodiments are illustrative of the technical solutions of the present invention, and are not intended to limit the technical solutions of the present invention, and all simple modifications and variations based on the present invention are within the protection scope of the present invention.
Claims (9)
1. The utility model provides an electric motor car booster unit which characterized in that: the energy conversion structure is arranged on a wheel frame and connected with a vehicle body, the driven chain wheel is sleeved on a wheel shaft of the electric vehicle, the energy conversion structure is connected with the driven chain wheel and converts potential energy generated by jolting and vibration of the electric vehicle into kinetic energy to be transmitted to the driven chain wheel, and the driven chain wheel drives wheels to rotate to realize power assistance.
2. The electric vehicle power assist device of claim 1, wherein: the energy conversion structure comprises a chain wheel, a receiving conversion part, a transmission chain and a clutch, wherein the chain wheel is rotatably arranged on a fixed shaft, the fixed shaft is arranged on a wheel frame, a driven chain wheel is connected with the chain wheel through the transmission chain, the receiving conversion part converts kinetic energy generated when the vehicle body is pressed down and then reset into power for driving the chain wheel to rotate, the chain wheel is driven to synchronously rotate along with the kinetic energy, and the clutch is used for keeping the receiving conversion part and the chain wheel in a connected or separated state.
3. The electric vehicle power assist device of claim 2, wherein: the receiving and converting part comprises an annular ratchet mechanism and a transmission rod, the annular ratchet mechanism is sleeved on the toothed disc shaft, the transmission rod comprises a ratchet arm and a vehicle body rod, the ratchet arm is fixedly connected with the outer ring of the annular ratchet mechanism, a sliding groove is formed in the ratchet arm, one end of the vehicle body rod is arranged in the sliding groove in a sliding mode, the other end of the vehicle body rod is connected with the vehicle body, when the vehicle body is pressed down due to jolt and vibration, the vehicle body rod moves synchronously with the vehicle to drive the annular ratchet mechanism to idle, and when the vehicle body resets again under the action of the damping structure, the vehicle body rod moves synchronously with the vehicle to drive the annular ratchet mechanism to rotate, so that the toothed disc connected with the vehicle body rod is driven to rotate synchronously, and the wheels are driven to rotate to realize assistance.
4. The electric vehicle power assist device of claim 3, wherein: the clutch comprises a latch arranged on a gear plate shaft, a clamping groove arranged on the inner ring surface of the annular ratchet mechanism, a clutch pressure spring, a clutch wire and a clutch handle, the annular ratchet mechanism and the gear plate are coaxial, the clutch pressure spring is used for keeping the clamping groove and the clamping teeth meshed, a clutch handle is arranged on the electric vehicle, one end of a clutch wire is connected with an annular ratchet mechanism, the other end of the clutch wire is connected with the handle, a gear ring and the clamping teeth are in a meshed state by default, the annular ratchet mechanism is fixedly connected with the periphery of the toothed disc, the power assisting device works normally, the handle is stirred, the clutch wire drives the clamping groove to be separated from the clamping teeth, the annular ratchet mechanism is separated from the toothed disc, the annular ratchet mechanism idles, and the power assisting device stops working, the clutch controls the connection state of the annular ratchet mechanism and the chain wheel, thereby controlling the use and the closing of the device.
5. The electric vehicle power assist device of claim 3, wherein: the clutch comprises a shift lever, a shift lever cap, a first end face slope fluted disc, a second end face slope fluted disc, a clutch wire and a clutch handle, wherein a shift lever chute is arranged on a shaft seal of the annular ratchet mechanism, the shift lever is arranged on a pawl in the annular ratchet mechanism and is positioned in the shift lever chute, the shift lever cap is provided with a conical inner cavity which is sleeved on the end face of the annular ratchet mechanism, a spring is arranged in the shift lever cap, the shift lever is pressed by the inclined plane of the conical inner cavity to move along the chute when the shift lever cap is tightly attached to the annular ratchet mechanism, the pawl is driven by the shift lever to be separated from the ratchet wheel, when the shift lever cap leaves the annular ratchet mechanism under the action of the spring, the pawl is driven by a spring to reset and is meshed with the ratchet wheel, the shift lever is driven by the pawl to reset synchronously, the end face of the first end face slope fluted disc is connected with the shift lever cap, the tooth face of the first end face slope fluted disc is meshed with the second end face slope fluted disc, the second end face slope fluted disc is fixed on the gear shaft or the wheel frame, one end of the clutch wire is connected with the first end face slope fluted disc, the other end of the clutch wire is connected with the clutch handle, the first end face slope fluted disc is driven to deflect relative to the second end face slope fluted disc in the circumferential direction by shifting the clutch handle, and the shifting rod cap is driven to move to control the connection and the separation of the shifting rod cap and the end face of the annular ratchet mechanism.
6. The electric vehicle power assist device of claim 2, wherein: the receiving and converting part comprises an end face ratchet disc and a driving rod, the end face ratchet disc is sleeved on the chain wheel, one end of the driving rod is connected with the vehicle body, the other end of the driving rod is provided with a clamping jaw which is meshed with the end face ratchet disc, when the vehicle body is pressed down due to jolt vibration, the driving rod moves synchronously with the vehicle, the clamping jaw slides on the end face ratchet disc, and when the vehicle body resets, the clamping jaw drives the end face ratchet disc to rotate, so that the chain wheel fixedly connected with the clamping jaw is driven to rotate synchronously, and the vehicle wheel is driven to move forwards.
7. The electric vehicle power assist device of claim 6, wherein: the clutch comprises a clutch wire and a clutch handle, the clutch handle is arranged on the electric vehicle, one end of the clutch wire is connected with the jaw, the other end of the clutch wire is connected with the handle, when the jaw is in a meshed state with the end face ratchet disc, the power assisting device normally works, the handle is stirred, the clutch wire drives the jaw to be separated from the end face ratchet disc, the ratchet disc is free in circumferential direction, the power assisting device stops working, the connection state of the jaw and the end face ratchet disc is controlled through the clutch, and therefore the clutch wire is controlled to be used and closed.
8. The electric vehicle assist device according to claim 6 or 7, characterized in that: the receiving and converting part further comprises a driving pedal rod, one end of the driving pedal rod is provided with a pedal for pedaling, the other end of the driving pedal rod is provided with a rack, the driving pedal rod is installed at the bottom of the wheel frame through a rotating shaft, the rack is meshed with the end face ratchet disc, and the pedal is pedaled to drive the rack to displace to drive the end face ratchet disc to rotate by utilizing a lever principle, so that the wheel is driven to rotate to move forwards.
9. An electric vehicle comprising an electric vehicle body, the electric vehicle body further comprising the electric vehicle power assist device of any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210812292.3A CN115056909A (en) | 2022-07-12 | 2022-07-12 | Electric vehicle power assisting device and electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210812292.3A CN115056909A (en) | 2022-07-12 | 2022-07-12 | Electric vehicle power assisting device and electric vehicle |
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| CN115056909A true CN115056909A (en) | 2022-09-16 |
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| CN202210812292.3A Pending CN115056909A (en) | 2022-07-12 | 2022-07-12 | Electric vehicle power assisting device and electric vehicle |
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