Tire rebound energy recovery device

Abstract

The present invention relates to the field of energy recovery, and specifically to a tire rebound energy recovery device, wherein when the tire is compressed, an elastic member pushes a first member to slide toward the inside of a wheel hub, and the first member drives a second member to move. At this time, a one-way clutch assembly is in an unlocked state, and a movable end of the second member can move relative to an outer peripheral surface of an output shaft. When the tire is in a rebound state, the tire pulls the first member to slide toward the outside of the wheel hub. At this time, the one-way clutch assembly switches to a locked state, and the movable end of the second member pulls the outer peripheral surface of the output shaft to drive the output shaft to rotate.

Description

Technical Field

[0001] The invention relates to the field of energy recovery, and in particular to a tire rebound energy recovery device. Background Art

[0002] Cars are the main means of transportation. The global demand and ownership of cars are huge and continue to grow. The energy consumption and environmental problems caused by car driving are becoming increasingly prominent. Energy conservation and emission reduction have become an important direction for the development of automobiles. Energy recovery is one of the important means of energy conservation and emission reduction. Car tires are greatly deformed due to the weight of the car, which causes a large friction between the tires and the road surface, resulting in a large reactive power loss of the car power, which increases energy consumption. If the energy generated by the deformation of the tire can be recycled, it will greatly save the energy consumption of the car and achieve the goal of energy conservation and emission reduction. Summary of the invention

[0003] In order to solve the above problems, the purpose of the present invention is to provide a tire rebound energy recovery device to solve the problem that the energy consumed by the deformation of automobile tires cannot be recovered at present.

[0004] Based on this, the present invention provides a tire rebound energy recovery device, comprising a wheel hub and a tire mounted on the outer circumference of the wheel hub, and also comprising an output shaft and a plurality of energy extraction devices;

[0005] The energy extraction device comprises a first component and a second component, wherein the first component is movably arranged in the wheel hub and can slide in the radial direction of the wheel hub, and an elastic member is arranged between the wheel hub and the first component; one end of the first component is connected to the inner wall of the tire, and the other end is rotatably connected to the fixed end of the second component, and the movable end of the second component is connected to the outer peripheral surface of the output shaft through a one-way clutch assembly, and the length direction of the second component is inclined to the movement direction of the first component;

[0006] When the tire is compressed, the elastic member pushes the first component to slide toward the inside of the wheel hub, and the one-way clutch assembly is unlocked and allows the movable end of the second component and the outer circumference of the output shaft to generate relative movement; when the tire rebounds, it pulls the first component to slide toward the outside of the wheel hub, and the one-way clutch assembly is locked so that the movable end of the second component is locked with the outer circumference of the output shaft, and the second component pulls the outer circumference of the output shaft to force the output shaft to rotate.

[0007] Preferably, the energy extraction device also includes a guide rail assembly for maintaining the movable end of the second component in connection with the outer circumferential surface of the output shaft, the guide rail assembly includes a guide rail and a slider provided on the movable end of the second component, and the slider is movably connected to the guide rail.

[0008] Preferably, the guide rail is fixedly connected to the wheel hub, and the curvature of the guide rail is the same as the curvature of the wheel hub.

[0009] Preferably, the guide rail is circumferentially arranged on the end surface of the output shaft.

[0010] Preferably, the first component is connected to the inner wall of the tire via a cable.

[0011] Preferably, the one-way clutch assembly comprises a meshing pawl and a ratchet, the ratchet is connected to the output shaft and the two are coaxially arranged, and the pawl is rotatably connected to the movable end of the second component.

[0012] Preferably, the one-way clutch assembly includes gear teeth provided on the outer peripheral surface of the output shaft and a transmission gear meshing with the gear teeth, and the transmission gear is rotatably connected to the movable end of the second component via a one-way bearing.

[0013] Preferably, the one-way clutch assembly includes a one-way clutch portion arranged on the movable end of the second component, the one-way clutch portion having a receiving groove and a rolling element located in the receiving groove, the receiving groove having a shallow groove end and a deep groove end, the depth of the shallow groove end is less than the depth of the deep groove end; the opening of the receiving groove is arranged opposite to the outer peripheral surface of the output shaft and the rolling element is movably connected to the outer peripheral surface of the output shaft.

[0014] Preferably, a plurality of guide cylinders are circumferentially provided on the wheel hub, the center lines of the guide cylinders coincide with the radius lines of the wheel hub, and the first component is movably inserted into the guide cylinders.

[0015] Preferably, a blocking member is provided on the first component, and one end of the elastic member abuts against the inner circumferential surface of the hub, and the other end abuts against the blocking member.

[0016] The tire rebound energy recovery device of the present invention has a tire that, when the tire is compressed, the elastic member pushes the first component to slide toward the inside of the wheel hub, and the first component drives the second component to move. At this time, the one-way clutch assembly is in an unlocked state, and the movable end of the second component can move relative to the outer circumference of the output shaft. When the tire is in a rebound state, the tire pulls the first component to slide toward the outside of the wheel hub. At this time, the one-way clutch assembly switches to a locked state, and the movable end of the second component pulls the outer circumference of the output shaft to drive the output shaft to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of a tire rebound energy recovery device according to an embodiment of the present invention;

[0018] Figure 22 is a schematic diagram of the structure of an energy collection device of a tire rebound energy recovery device according to an embodiment of the present invention;

[0019] Figure 3 2 is a schematic diagram of the structure of a guide rail assembly of a tire rebound energy recovery device according to an embodiment of the present invention;

[0020] Figure 4 is a schematic diagram of a ratchet mechanism of a tire rebound energy recovery device according to an embodiment of the present invention;

[0021] Figure 5 is a schematic diagram of a one-way roller mechanism of a tire rebound energy recovery device according to an embodiment of the present invention;

[0022] Figure 6 Schematic diagram of a one-way gear mechanism of a tire rebound energy recovery device according to an embodiment of the present invention.

[0023] Among them, 1. wheel hub; 11. guide cylinder; 2. tire; 3. output shaft; 4. energy extraction device; 41. first component; 411. blocking member; 42. second component; 43. guide rail assembly; 431. guide rail; 432. slider; 44. elastic member; 5. one-way clutch assembly; 51. ratchet; 52. pawl; 53. gear teeth; 54. transmission gear; 55. one-way clutch part; 551. accommodating groove; 551a. shallow groove end; 551b. deep groove end; 552. rolling member; 6. cable. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] Combination Figures 1 to 6 As shown, the tire rebound energy recovery device of the present invention is schematically shown, comprising a wheel hub 1, a tire 2 mounted on the outer circumference of the wheel hub 1, an output shaft 3 and a plurality of energy extraction devices 4. Figure 2The energy extraction device 4 includes a first component 41 and a second component 42. The first component 41 is movably inserted into the wheel hub 1 and can slide along the radial direction of the wheel hub 1. Specifically, a plurality of guide cylinders 11 are circumferentially provided on the wheel hub 1. The center line of the guide cylinder 11 coincides with the radius line of the wheel hub 1. The first component 41 is movably inserted into the guide cylinder 11, that is, the first component 41 can slide back and forth in the guide cylinder 11; an elastic member 44 is provided between the wheel hub 1 and the first component 41. Correspondingly, a blocking member 411 is provided on the first component 41. One end of the elastic member 44 abuts against the inner circumference of the wheel hub 1, and the other end abuts against the blocking member 411. The elastic force of the elastic member 44 drives the first component 41 to move toward the inside of the wheel hub 1. One end of the first component 41 is connected to the inner wall of the tire 2, and the other end is rotatably connected to the fixed end of the second component 42. The movable end of the second component 42 is connected to the outer circumference of the output shaft 3 through the one-way clutch assembly 5, wherein the one-way clutch assembly 5 only allows the movable end of the second component 42 and the outer circumference of the output shaft 3 to generate relative movement in a certain direction, and locks the relative movement of the movable end of the second component 42 and the outer circumference of the output shaft 3 in another direction. Of course, in order to enable the second component 42 to smoothly push the output shaft 3 to rotate, the length direction of the second component 42 (the length direction is the direction of the line connecting the movable end and the fixed end) is inclined to the movement direction of the first component 41.

[0026] When the tire 2 is squeezed by external force, the distance between the inner wall of the tire 2 and the outer circumference of the wheel hub 1 is reduced, and the first component 41 slides toward the inside of the wheel hub 1 under the elastic force of the elastic component 44 and pushes the second component 42 to move. The one-way clutch assembly 5 is unlocked and allows the movable end of the second component 42 to slide relative to the outer circumference of the output shaft 3. At this time, the second component 42 does not drive the output shaft 3 to rotate. When the tire 2 is not squeezed by external force and rebounds, the inner wall of the tire 2 pulls the first component 41 to overcome the elastic force of the elastic component 44 and force the first component 41 to slide toward the outside of the wheel hub 1. The first component 41 pulls the second component 42 to move. At this time, the one-way clutch assembly 5 switches from the unlocked state to the locked state in the reverse movement of the second component 42, that is, the movable end of the second component 42 is locked with the outer circumference of the output shaft 3, and finally the output shaft 3 rotates under the pull of the second component 42. The one-way clutch assembly 5 can make the output shaft 3 always rotate in the same direction to improve the stability of energy recovery. It is understandable that the output shaft 3 can be connected to an energy conversion device such as a generator to convert mechanical rotational motion into electrical energy and thus complete energy recovery. Preferably, the first component 41 is connected to the inner wall of the tire 2 via a cable 6 .

[0027] like Figure 3 and Figure 4In order to keep the movable end of the second component 42 connected to the outer peripheral surface of the output shaft 3, the energy extraction device 4 further includes a guide rail assembly 43, which includes a guide rail 431 and a slider 432 arranged on the movable end of the second component 42, and the slider 432 is movably connected to the guide rail 431. Figure 4 As shown, the guide rail 431 is annular and fixed in the wheel hub 1. The movable ends of the plurality of second components 42 are movably connected to the guide rail 431 through respective sliders 432. Of course, the guide rail 431 can also be segmented instead of annular. The movable end of each second component 42 is movably connected to a section of the guide rail 431 through respective sliders 432. The curvature of the guide rail 431 is the same as that of the wheel hub 1. Figure 3 As shown, the guide rail 431 can also be circumferentially arranged on the end surface of the output shaft 3 , so that the movable end of the second component 42 can be movably connected to the output shaft 3 .

[0028] In addition, there are many structures of the one-way clutch assembly 5. These include a ratchet 51 mechanism, a one-way gear mechanism, and a one-way roller mechanism. In the implementation scheme of the ratchet 51 mechanism, it can be combined with Figure 4 As shown, the one-way clutch assembly 5 includes a meshing pawl 52 and a ratchet 51, the ratchet 51 is connected to the output shaft 3 and the two are coaxially arranged, the pawl 52 is rotatably connected to the movable end of the second component 42, when the ratchet 51 rotates clockwise, the pawl 52 and the ratchet 51 are in an unlocked state, and when the ratchet 51 rotates counterclockwise, the pawl 52 is engaged with the ratchet 51, and the two are locked. In the embodiment of the one-way gear mechanism, the combination Figure 6 As shown, the one-way clutch assembly 5 includes gear teeth 53 disposed on the outer peripheral surface of the output shaft 3 and a transmission gear 54 meshing with the gear teeth 53. The transmission gear 54 is rotatably connected to the movable end of the second component 42 through a one-way bearing. The one-way bearing only allows the transmission gear 54 and the second component 42 to rotate in a certain direction, and the one-way bearing is locked when the two rotate in the opposite direction. In the implementation scheme of the one-way roller mechanism, the transmission gear 54 and the second component 42 are connected to the movable end of the second component 42 through a one-way bearing. Figure 5As shown, the one-way clutch assembly 5 includes a one-way clutch portion 55 disposed on the movable end of the second component 42, the one-way clutch portion 55 has a receiving groove 551 and a rolling element 552 located in the receiving groove 551, wherein the receiving groove 551 has a shallow groove end 551a and a deep groove end 551b, the depth of the shallow groove end 551a is less than the depth of the deep groove end 551b, when the rolling element 552 is at the deep groove end 551b, the rolling surface of the rolling element 552 does not extend out of the receiving groove 551, and on the contrary, when the rolling element 552 is at the shallow groove end 551a, the rolling surface of the rolling element 552 extends out of the receiving groove 551; the receiving groove 551 The opening is arranged opposite to the outer circumference of the output shaft 3 and the rolling element 552 is movably connected to the outer circumference of the output shaft 3. When the one-way roller mechanism is in an unlocked state, the rolling element 552 and the outer circumference of the output shaft 3 roll relative to each other and roll to the deep groove end 551b. When the one-way roller mechanism is in a locked state, the rolling element 552 and the outer circumference of the output shaft 3 roll relative to each other and roll to the shallow groove end 551a. At this time, the rolling surface of the rolling element 552 extends out of the accommodating groove 551 and at the same time tightly fits the outer circumference of the output shaft 3 and the groove wall of the accommodating groove 551, thereby locking the relative sliding of the one-way clutch portion 55 and the output shaft 3.

[0029] In summary, in the tire rebound energy recovery device of the present invention, when the tire 2 is compressed, the elastic member 44 pushes the first component 41 to slide toward the inside of the wheel hub 1, and the first component 41 drives the second component 42 to move. At this time, the one-way clutch assembly 5 is in an unlocked state, and the movable end of the second component 42 can move relative to the outer circumference of the output shaft 3. When the tire 2 is in a rebound state, the tire 2 pulls the first component 41 to slide toward the outside of the wheel hub 1. At this time, the one-way clutch assembly 5 switches to a locked state, and the movable end of the second component 42 pulls the outer circumference of the output shaft 3 to drive the output shaft 3 to rotate.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A tire rebound energy recovery device, comprising a wheel hub and a tire mounted on the outer circumference of the wheel hub, characterized in that: Also includes an output shaft and a plurality of energy taking devices; The energy extraction device comprises a first component and a second component, wherein the first component is movably arranged in the wheel hub and can slide in the radial direction of the wheel hub, and an elastic member is arranged between the wheel hub and the first component; one end of the first component is connected to the inner wall of the tire, and the other end is rotatably connected to the fixed end of the second component, and the movable end of the second component is connected to the outer peripheral surface of the output shaft through a one-way clutch assembly, and the length direction of the second component is inclined to the movement direction of the first component; When the tire is compressed, the elastic member pushes the first component to slide toward the inside of the wheel hub, and the one-way clutch assembly is unlocked and allows the movable end of the second component and the outer circumference of the output shaft to generate relative movement; when the tire rebounds, the tire pulls the first component to slide toward the outside of the wheel hub, and the one-way clutch assembly is locked to lock the movable end of the second component with the outer circumference of the output shaft, and the second component pulls the outer circumference of the output shaft to force the output shaft to rotate; A blocking member is provided on the first component, one end of the elastic member abuts against the inner circumference of the hub, and the other end abuts against the blocking member; The energy extraction device also includes a guide rail assembly for connecting the movable end of the second component to the outer circumferential surface of the output shaft. The guide rail assembly includes a guide rail and a slider disposed on the movable end of the second component. The slider is movably connected to the guide rail.

2. The tire rebound energy recovery device according to claim 1, characterized in that: The guide rail is fixedly connected to the wheel hub, and the curvature of the guide rail is the same as the curvature of the wheel hub.

3. The tire rebound energy recovery device according to claim 1, characterized in that: The guide rail is circumferentially arranged on the end surface of the output shaft.

4. The tire rebound energy recovery device according to claim 1, characterized in that: The first component is connected to the inner wall of the tire through a cable.

5. The tire rebound energy recovery device according to claim 1, characterized in that: The one-way clutch assembly comprises a meshing pawl and a ratchet wheel, the ratchet wheel is connected to the output shaft and the two are coaxially arranged, and the pawl is rotatably connected to the movable end of the second component.

6. The tire rebound energy recovery device according to claim 1, characterized in that: The one-way clutch assembly includes gear teeth arranged on the outer peripheral surface of the output shaft and a transmission gear meshing with the gear teeth. The transmission gear is rotatably connected to the movable end of the second component through a one-way bearing.

7. The tire rebound energy recovery device according to claim 1, characterized in that: The one-way clutch assembly includes a one-way clutch portion arranged on the movable end of the second component, the one-way clutch portion having a receiving groove and a rolling element located in the receiving groove, the receiving groove having a shallow groove end and a deep groove end, the depth of the shallow groove end is less than the depth of the deep groove end; the opening of the receiving groove is arranged opposite to the outer peripheral surface of the output shaft and the rolling element is movably connected to the outer peripheral surface of the output shaft.

8. The tire rebound energy recovery device according to claim 1, characterized in that: A plurality of guide cylinders are arranged around the wheel hub, the center lines of the guide cylinders coincide with the radius lines of the wheel hub, and the first component is movably inserted into the guide cylinders.

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