TWI502145B - The steering device of the steering of the vehicle - Google Patents

Description

Vehicle steering differential

The invention provides a differential device for steering of a vehicle, in particular, a differential device for balancing two wheels when the vehicle is turning between the vehicles, and the power module is matched with the floating speed reduction mechanism, and one side of the wheel is pressed while being turned for the other side. The wheels continue to travel to achieve the purpose of driving the vehicle to steer using the differential speed of the two wheels.

According to the people's journey, in addition to using their own feet to walk, they use a variety of means of transportation to carry, usually common people such as cars, locomotives, are the most common means of transportation, but because of the overall structure of the vehicle, The way to control the vehicle during the trip is different, and in general, if the vehicle encounters a need to turn between the travels, it must slow down and rotate the direction of the wheel to achieve the purpose of the vehicle steering, but because the vehicle maintains a certain speed between the travels, Deceleration at the moment of steering is likely to cause damage to the vehicle, and when the vehicle travels at a faster speed, it is usually difficult to achieve the effect of instantaneous deceleration, that is, the steering may not be too steep or the steering angle is too large, too small, etc., and an accident occurs, so in the vehicle The steering control between the travels is a problem worthy of attention; however, because of the difference in the overall structural design of the vehicle, the locomotive or bicycle is a two-wheeled vehicle, a large vehicle such as a car or a truck, and more than four rounds of traffic or transportation tools, most of which are It is an electric mechanical power vehicle; in addition, some special vehicles such as tricycles, two-wheelers, and generations Waiting for the bus, rickshaw or a wheelchair, you must rely on operational manpower, vehicles can travel manpower, and manpower control of the vehicle, but not easy to control inter-vehicle travel, The speed of the wheel is fast and slow. If there is a need to turn, the vehicle must be slowed down to the parking state. After the steering, the manpower starts to accelerate the power travel, and it is less easy to control the speed of the vehicle and cause the vehicle controller. Quite a lot of physical effort, there is still some inconvenience and trouble in the actual operation and implementation of the steering control between the vehicles, such as:

(1) When the vehicle must turn between the roads, the speed of the vehicle should be slowed down, and the vehicle should be slowly turned to accelerate the power. This will cause the vehicle to travel at a speed difference that is too large, affecting the use of the vehicle's wheels and body. Short life.

(2) The human-powered vehicle travels by manpower control. When it is turned, it must first decelerate, then turn and then accelerate. This often leads to serious physical exertion of the control personnel, and it is also quite prone to accidents that fall and fail.

Therefore, how to solve the problem and trouble that the vehicle is not easy to control when it is turning between the roads, and the speed of the vehicle between the vehicles is slowed down after the steering, the speed must be re-accelerated, and it is quite time-consuming and labor-intensive, etc., that is, the inventor The direction of research and improvement that is relevant to the relevant manufacturers engaged in this industry.

Therefore, the inventors have collected the relevant information in view of the inconvenience and troubles caused by the shift of the above-mentioned conventional vehicles. Through multi-party assessment and consideration, the inventors have been designing and revising through continuous conceiving and revision through years of experience in the industry. The power module and the floating speed reduction mechanism are respectively connected to the two wheels of the vehicle, and when the vehicle is turning, the wheel is pressed against one side and the other wheel is smoothly operated. The invention patent for the differential device that achieves simple and convenient vehicle steering for rapid steering is born.

The main purpose of the present invention is that the differential device has a central space inside the rim motor of the power module, and has a central hole on both sides, and a central shaft is disposed in the two central holes for the two sides of the central axis to extend respectively. The driving unit is arranged outside the two central holes, and the driving unit is driven to rotate the driving gear, and the driving gear set connected to the outside of the side cover is rotated by the rim motor, and the transmission gear set is driven by the transmission gear set. The one side wheel of the preset vehicle is connected, and the other side of the driving unit is used with the reduction gear of the floating speed reduction mechanism to cooperate with the driving gear, and the reduction gear is installed inside the rotating disk seat, and the rotating disk seat is assembled on the central axis. Then, the central axis and the rotating disk holder pass through the outside of the center hole, and then the power transmission unit is connected by the rotating disk base, and the other wheel of the preset vehicle is connected through the power transmission unit for turning the preset vehicle between the wheels, and pressing one The side wheels are differentially generated by the other side wheels for the purpose of steering the vehicle.

The secondary object of the present invention is that the power module includes a casing, a side cover covering the side of the casing, and an accommodation space is formed inside the casing and the side cover for mounting the driving unit and driving The unit is a power gear that can drive the rim motor, the driving gear, the casing and the side cover, and the transmission gear set on the side of the central shaft is connected with one wheel of the preset vehicle, and the driving gear is matched with the reduction gear and the ring gear. The deceleration action is connected to the driving sprocket of the power transmission unit through the rotating disc holder, and the driving sprocket drives the chain transmission driven sprocket, and the driven sprocket is connected to the other wheel of the preset vehicle, that is, the two sides of the central axis can be Transmission gear set and The power transmission unit drives the wheels, and the speed difference can be generated on the left and right sides of the power module, so that the differential speed can be generated on the two sides of the preset vehicle to facilitate the steering and continue to travel.

In order to achieve the above objects and effects, the technical means and the structure of the present invention will be described in detail in the preferred embodiments of the present invention.

Please refer to the first, second, third and fourth figures, which are side cross-sectional views of the present invention, a side cross-sectional view of a preferred embodiment of the casing, a side cross-sectional view of a preferred embodiment, and another embodiment. As shown in the figure, it can be clearly seen from the figure that the differential device for steering of the vehicle of the present invention comprises a power module 1 and a floating speed reduction mechanism 2, wherein the power module 1 includes a rim motor 11 and a driving unit 12 And the transmission gear set 13 , and the rim motor 11 has a accommodating space 110 therein, and the central side of the accommodating space 110 is respectively provided with a central hole 101 and 102 respectively, and respectively penetrates to the outside, and then the driving unit is installed in the accommodating space 110 12, the driving unit 12 is respectively connected to the central shaft 121 and the driving gear 122, and the central shaft 121 is protruded from the two side central holes 101, 102 to the outside of the rim motor 11 and is located at the center shaft 121 outside the rim motor 11. On the side, the power gear 131 of the transmission gear set 13 is assembled, and the driven gear 132 is connected by the power gear 131, that is, the one side wheel 31 of the external preset vehicle 3 is connected through the driven gear 132.

The floating reduction mechanism 2 includes a rotary disk holder 21, a reduction gear 22, a power transmission unit 23, and a ring gear 24, and the rotary disk holder 21 is provided with a shaft hole 210 at a central position, and a convex portion 211 is protruded at one side, and A floating speed reduction mechanism 2 having a deceleration effect, such as a ring gear 24 and a reduction gear 22, is disposed on one side of the rotary disk holder 21, and the power transmission unit 23 is assembled on the other side of the rotary disk holder 21, and is connected to the preset through the power transmission unit 23. The other side wheel 32 of the vehicle 3.

When the above-mentioned components are assembled, the center hole 101 of the rim motor 11 side of the power module 1 is used, and the rotary disk holder 21 of the floating speed reduction mechanism 2 is inserted, and the drive inside the accommodating space 110 of the rim motor 11 is driven. The unit 12, that is, the reduction gear 22 of the inner side of the rotary disk holder 21 is relatively meshed and assembled by the driving gear 122, and the inner shaft hole 210 of the protruding portion 211 of the rotating disk holder 21 is used for the central axis 121 to pass through. And by rotating the protruding portion 211 of the disk holder 21, directly driving the outer power transmission unit 23 to interlock the other side of the transmission gear set 13 to rotate and operate on the two sides of the central axis 121 respectively; 1. The transmission gear set 13, the floating reduction mechanism 2, the power transmission unit 23, and the like, constitute a differential device of the present invention.

The rim motor 11 of the power module 1 includes a casing 111 and a side cover 112, and an accommodation space 110 is formed inside the casing 111 and the side cover 112 to be assembled by the driving unit 12 by using the accommodating space 110. Then, the driving unit 12 can be any kind of motor (such as a stepping motor, a brushed horse) a motor of various types such as a brushless motor or an induction motor; the casing 111 may be integrally formed, or the casing 111 may be disassembled into a two-piece type, and the casing 111 and the outer cover 113 may be included (as shown in the second figure) And the side of the central axis 121 of the driving unit 12 passes through the outside of the central hole 102 of one side of the rim motor 11 and is connected to the transmission gear set 13 to transmit the power gear 131 and the driven gear 132 of the transmission gear set 13. The rotation direction of the wheel motor 11 of the rim motor 11 and the preset vehicle 3 is changed, so that the rim motor 11 and the wheel 31 are differently steered, and the other side of the center shaft 121 is driven by the driving gear 122 to drive the reduction gear 22, the ring gear 24, and the floating The speed reduction mechanism 2 rotates, and the reduction gear 22, the rotary disk holder 21 and the rim motor 11 rotate in different directions, and then the chain 233 of the power transmission unit 23 drives the driven sprocket 232 to rotate in the same direction, and simultaneously drives the other wheel. 32 is also rotated in the opposite direction to the rim motor 11, so that the two wheels 31, 32 can travel in the same direction.

The rotating disk holder 21 of the floating speed reduction mechanism 2 is provided with a power transmission unit 23 on the outer side surface of the protruding portion 211, and the power transmission unit 23 can be a driving sprocket 231, a driven sprocket 232, and a chain 233 or equivalent. Pulleys, belts, etc., the mechanism for transmission.

3, 4, 5, and 6 are a side cross-sectional view of a preferred embodiment of the present invention, a top view of another embodiment, a side cross-sectional view of still another embodiment, and another embodiment. Side view of the cross-sectional view, as can be clearly seen from the figure, the differential device for steering of the vehicle of the present invention can utilize the power module 1 and float The speed reduction mechanism 2 can be assembled between the two wheels 31, 32 of the preset vehicle 3 (such as a tricycle, two wheels, a rickshaw, a scooter or a wheelchair, etc.), and when the preset vehicle 3 is traveling, steering is required When the right turn is made, the preset vehicle 3 can be biased toward the right side and pressed (the left side is biased toward the left side), and the driving unit 12 rotates the rim motor 11 and the driving gear 122, and The reduction gear 22 coupled to the driving gear 122 rotates with the driving gear 122 to generate rotation, but the reduction gear 22 does not rotate the rotating disk holder 21 to rotate or rotate the rotating disk holder 21, so that the rotating disk holder 21 is outside. The power transmission unit 23 and the wheel 32 are also in a stationary or slow-rotating state. When the reduction gear 22 rotates to drive the ring gear 24, the rim motor 11 becomes reversed, and the connected power gear 131 is reversed. By the intermeshing driven gear 132 rotating in the opposite direction, the transmission gear set 13 and the wheel 31 and the rim motor 11 are reversely actuated. Since the rotating disk base 21 has a floating structure, there is no resistance; Left bias, this time pass The gear set 13, the rim motor 11, the side cover 112, the casing 111, and the ring gear 24 are all in a stationary or decelerating state as the wheel 31 is biased. At this time, the ring gear 24 does not move, and the driving gear 122 rotates and the reduction gear 22 rotates. The driven sprocket 232 and the wheel 32 driven by the rotating disk holder 21, the driving sprocket 231 and the chain 233 all rotate in different directions with the driving gear 122, and the driving unit 12 rotates forward or reverse due to the change of the power phase. This is not a detailed description of the prior art; and the rotating disk holder 21 of the floating reduction mechanism 2 has a protruding portion 211 on one side and a rim motor. 11 outside the center hole 101, and can be mounted on the central shaft 121 outside the protruding portion 211 with a brake acting electromagnetic brake 25 (as shown in the fifth figure); or away from the floating speed reduction mechanism 2 The transmission gear set 13 provided on the outer side of the rim motor 11 is provided with a protruding portion 133 on the outer side, and then an electromagnetic brake 25 having a braking action is assembled on the protruding portion 133 (as shown in FIG. 6). The floating deceleration mechanism 2 can be assisted by the electromagnetic brake 25 to perform the purpose of deceleration or braking when turning right (as shown in FIG. 5) or left (as shown in FIG. 6) during operation. An electromagnetic brake 25 having a braking action is provided, and outside the transmission gear 13 of the rim motor 11, or outside the projection 211 of the turret seat 21 of the floating reduction mechanism 2, or at an appropriate position, the speed increase can be installed first. The gears are used to increase the rotational speed to reduce the load, and the electromagnetic brake 25 is more easily braked; the speed increasing gear is a conventional skill, and therefore will not be described; and the speed increasing gear or the electromagnetic brake 25 may also be disposed in The frame is fixed on the fixed body of the frame and is rotatable in conjunction with the electromagnetic brake 25 The protruding portion 133 of the driven gear 132 or the protruding portion 211 of the driven sprocket 232 is configured to be driven or braked, that is, the electromagnetic brake 25 is provided for the inner hole of the plate. The protruding portions of the power gear 131, the rotating disk holder 21, the driven gear 132, and the driven sprocket 232 drive the rotating hollow holes.

However, the driving gear 122 and the rim motor 11 rotate to drive the other side transmission gear set 13 to rotate, so that the transmission gear set 13 rotates along one side of the wheel 31, and the transmission side wheel 32 (right side) is stationary, and the other side wheel 31 (Left) Rotating travel, driving the preset vehicle 3 to turn to the right side, and after the steering is completed, only the bias to the right side of the preset vehicle 3 is released, so that the preset vehicle 3 returns to normal, that is, the reduction gear 22 can be rotated. The disk holder 21 rotates and interlocks the power transmission unit 23 to drive the wheel 32 to rotate, so that the two side wheels 31, 32 are driven forward by the same value of the relative resistance of the ground, and the driving unit 12 is still driven during the steering process. The rim motor 11 and the one side wheel 31 of the preset vehicle 3 are driven to maintain stable traveling and steering of the preset vehicle 3, and it is not easy to stall or slow down the traveling speed, and the left and right two wheels 31 and 32 are caused by the floating speed reduction mechanism. The mutual compensation speed of 2 travels at an average speed.

Therefore, the above description is only a preferred embodiment of the present invention, and thus is not limited to the patent scope of the present invention. The differential device for steering of the vehicle of the present invention is driven by the rim motor 11 of the power module 1 internally. The accommodating space 110 assembles the driving unit 12, and the driving unit 12 drives the driving gear 122 and the rim motor 11 to rotate, and the central shaft 121 extends out of the rim motor 11 on both sides, and assembles the transmission gear set 13 on one side, and reconnects The wheel 31 on the side of the vehicle 3 is preset, and the other side of the center shaft 121 is assembled into a floating reduction mechanism 2 through the drive gear 122 and the reduction gear 22 of the ring gear 24. The reduction gear 22 is assembled in the rotary disk holder 21, and the rotary disk holder 21 is The socket is in a floating state on the central shaft 121, and the outer side reuse power transmission unit 23 is connected to the other side wheel 32 of the preset vehicle 3, so that the driving gear 122 of the driving unit 12, the reduction gear 22 of the floating speed reduction mechanism 2, and the ring can be reached. Between gears 24 Cooperating to generate a rotation speed difference, and by biasing and pressing the wheel 31 (or the wheel 32) on the side (left or right side) of the preset vehicle 3, that is, through the reduction gear 22, the ring gear 24 and the driving gear 122 The one-side wheel 31 is decelerated or stationary, and the other side wheel 32 is rotated to complete the steering purpose, and has the advantages of maintaining the traveling speed of the preset vehicle 3, and is stable for the predetermined vehicle 3 to be stably stalled or out of control, or By changing the phase of the driving unit 12, thereby changing the forward rotation or the reverse rotation of the driving gear 122, the two wheels 31, 32 can achieve the effect of advancing or retreating, so that the purpose, the effect, etc., and related equipment can be achieved. The device is intended to be covered by the present invention, and such a simple modification and equivalent structural changes are included in the scope of the patent of the present invention and are combined with Chen Ming.

The above-described differential device for steering of a vehicle of the present invention can have the following advantages when implemented in actual use, such as:

(1) The driving unit 12 of the power module 1 is assembled with the driving gear 122, the ring gear 24, and the floating rotating disk holder 21 in cooperation with the reduction gear 22 of the floating reduction mechanism 2, so that the driving unit 12 can be rotated on both sides. The transmission gear set 13, the reduction gear 22, and the power transmission unit 23 stabilize the steering by biasing the one side wheel 31 to be stationary and the other side wheel 32 to rotate.

(2) Similarly, the power module 1 drives the side wheel 32 of the preset vehicle 3 to decelerate or stand still, and the other side wheel 31 travels to achieve smooth and non-resisting smooth steering and running, and a side wheel 32 (or the wheel 31) )can After completely restoring or decelerating to release the side pressure, the speed can be quickly recovered, and the running speed can be resumed in a short time after steering.

Therefore, the present invention is directed to the design of a differential device for vehicle steering, which is to drive a rim motor, a driving gear, a floating reduction mechanism, a transmission gear set, a power transmission unit, etc. by a rim motor of a power module. Rotate and interlock the two wheels of the preset vehicle to rotate and travel, and when the preset vehicle wants to make a turn, press the wheel in the direction of turning (for example, the right curve), and then reduce the speed through the driving gear and the positive gear of the ring gear. Rotate or reverse, for the rotating disc holder and the power transmission unit to be slow to standstill, and provide the best turning and traveling of the vehicle, and then the driving unit drives the driving gear to link the rim motor and the transmission gear set to drive the other When the wheel rotates and travels, and the power of the preset vehicle is stabilized and the wheel is to be released, the two side wheels are re-routed at a stable speed as the main protection focus, and the two side wheels are used to form one side to decelerate and the other side The normal forward turning mode achieves the effect of using the differential mode on two sides of the wheel to stably and quickly perform steering, but the above is only the comparison of the present invention. The embodiments are not intended to limit the scope of the invention, so that the simple modifications, substitutions, and equivalents of the invention, such as the use of the drive sprocket, the driven gear, the power gear, and the transmission The size and shape of the gear set are different, and the transmission mode is changed to increase the speed or decelerate or mute, improve the efficiency or reduce the gear non-reduction gear mode, etc., to achieve the same purpose, equivalent replacement, should be regarded as the equivalent principle All should be included in the scope of the patent of the present invention and combined with Chen Ming.

In summary, the above-described vehicle steering differential device of the present invention can achieve its efficacy and purpose in practical implementation and application, and therefore the present invention is an excellent research and development, and is an application for conforming to the invention patent.爰Proposing an application in accordance with the law, I hope that the trial committee will grant this case as soon as possible to protect the hard work of the inventor. If there is any doubt in the arbitral tribunal, please do not hesitate to give instructions to the inventor, and the inventor will try his best to cooperate.

1‧‧‧Power Module

101‧‧‧ center hole

102‧‧‧ center hole

11‧‧‧Round Motor

110‧‧‧ accommodating space

111‧‧‧Chassis

112‧‧‧ side cover

113‧‧‧Outside cover

12‧‧‧Drive unit

121‧‧‧Center axis

122‧‧‧Drive gear

13‧‧‧Transmission gear set

131‧‧‧Power gear

132‧‧‧ driven gear

133‧‧‧protrusion

2‧‧‧Floating speed reduction mechanism

21‧‧‧Rotating disk holder

211‧‧‧ protruding parts

210‧‧‧ shaft hole

231‧‧‧Active sprocket

232‧‧‧Driven sprocket

233‧‧‧Chain

22‧‧‧Reduction gears

23‧‧‧Power transmission unit

24‧‧‧ring gear

25‧‧‧Electromagnetic brake

3‧‧‧ Vehicles

31‧‧‧ Wheels

32‧‧‧ Wheels

The first figure is a side cross-sectional view of the present invention.

The second drawing is a side cross-sectional view of a preferred embodiment of the casing of the present invention.

The third drawing is a side cross-sectional view of a preferred embodiment of the invention.

The fourth drawing is a plan view of another embodiment of the present invention.

Figure 5 is a side cross-sectional view showing still another embodiment of the present invention.

Figure 6 is a side cross-sectional view showing still another embodiment of the present invention.

1‧‧‧Power Module

101‧‧‧ center hole

102‧‧‧ center hole

11‧‧‧Round Motor

110‧‧‧ accommodating space

111‧‧‧Chassis

112‧‧‧ side cover

12‧‧‧Drive unit

121‧‧‧Center axis

122‧‧‧Drive gear

13‧‧‧Transmission gear set

131‧‧‧Power gear

132‧‧‧ driven gear

2‧‧‧Floating speed reduction mechanism

21‧‧‧Rotating disk holder

210‧‧‧ shaft hole

211‧‧‧ protruding parts

22‧‧‧Reduction gears

23‧‧‧Power transmission unit

231‧‧‧Active sprocket

232‧‧‧Driven sprocket

233‧‧‧Chain

24‧‧‧ring gear

3‧‧‧ Vehicles

31‧‧‧ Wheels

32‧‧‧ Wheels

Claims (9)

A differential device for steering a vehicle includes a power module and a floating speed reduction mechanism, wherein: the power module includes a rim motor, a driving unit and a transmission gear set, and the rim motor has two sides with a central hole orientation The oscillating motor is provided with a central axis extending from the center hole outside the rim motor, and then a driving unit for driving the driving gear is mounted in the accommodating space inside the rim motor. And assembling a transmission gear set connecting one side wheel of the preset vehicle on a side of the central shaft; and the floating speed reduction mechanism is a central axis of the assembled power module opposite to the other side of the transmission gear set, and is provided with a reduction gear matched with the driving gear And the ring gear, wherein the reduction gear is mounted on the rotating disc seat assembled on the central shaft, and the rotating disc base is exposed outside the center hole and assembled to the power transmission unit that connects the other wheel of the preset vehicle. The differential device for steering a vehicle according to claim 1, wherein the rim motor comprises a casing and a side cover covered on one side or both sides of the casing, and is formed inside the casing and the side cover. The housing space of the drive unit. The differential device for steering a vehicle according to claim 1, wherein the driving unit installed in the accommodating space of the rim motor is a motor, a brush motor, a brushless motor or an induction motor, and is driven. A driving gear is connected to one side of the unit for the driving gear to rotate the rim motor and the transmission gear set. The differential device for vehicle steering according to claim 1 of the patent scope, wherein the wheel The transmission gear set provided on one side of the central axis of the ring motor includes a power gear disposed on the central shaft, a driven gear for changing the rotational direction in cooperation with the power gear, and the transmission gear set incorporates an electromagnetic brake. The differential device for steering a vehicle according to the first aspect of the invention, wherein the power transmission unit of the floating speed reduction mechanism connected to the outside of the rotating disk base is a sprocket and a chain set or a pulley and a belt set. The differential device for steering a vehicle according to claim 1, wherein the rotating disk base of the floating speed reducing mechanism is provided with a protruding portion outside the center hole of the rim motor, and is mounted on the protruding portion. Set the speed increasing gear and the electromagnetic brake with brake function. The differential device for steering a vehicle according to claim 1, wherein the outer side of the transmission gear set is provided with a protruding portion, and the speed increasing gear and the electromagnetic brake having the braking function are assembled in the protruding portion. The differential device for steering a vehicle according to claim 6 or 7, wherein the speed increasing gear or the electromagnetic brake can be disposed on the fixed body of the frame and can be rotated by the electromagnetic brake to wear the piece. The transmission is provided through a projection provided by the driven gear or a predetermined projection of the driven sprocket. The differential device for steering a vehicle according to claim 8, wherein the electromagnetic brake is provided with an inner hole for the power gear, the rotating disk base, the driven gear or the driven sprocket. Set to drive the hollow hole.