Bidirectional energy recovery device

Abstract

The present application relates to a bidirectional energy recovery device, belonging to the technical field of automobile energy recovery; comprising a protective shell fixed to the frame above the axle, the inside of the protective shell is rotatably connected with the speed-increasing gear shaft and the output shaft with parallel axis, the speed-increasing gear shaft and the output shaft are transmission connected through the speed-increasing gear, the output shaft is connected with the generator inside the protective shell, the inside of the protective shell is rotatably connected with two groups of output gear rings which are symmetrical, the speed-increasing gear shaft is between the two groups of output gear rings, two ratchet gears are respectively sleeved on the speed-increasing gear shaft through the same ratchet and pawl structure, the output gear rings are engaged with the corresponding ratchet gears, the hinged plate parts of the two output gear rings respectively extend from the front and rear sides of the protective shell and are connected with the wheels through a connecting rod input shaft; the problem that the energy contained in the vibration cannot be utilized when the current suspension buffers the vibration between the axle and the frame is solved.

Description

Technical Field

[0001] This invention belongs to the field of automotive energy recovery technology, specifically relating to a bidirectional energy recovery device. Background Technology

[0002] The suspension system is a collective term for all force-transmitting connections between the vehicle's frame and axles. Its function is to transmit the forces and torques acting between the wheels and the frame, and to buffer the impact forces transmitted from uneven road surfaces to the frame or body, reducing the resulting vibrations to ensure a smooth ride. While the suspension system can dampen vibrations generated by the vehicle to improve passenger comfort, it also filters out some of the energy generated by those vibrations, resulting in energy loss and waste. Summary of the Invention

[0003] This invention overcomes the shortcomings of the prior art and proposes a bidirectional energy recovery device; it solves the problem that the current suspension cannot utilize the energy contained in the vibration when it is absorbing the vibration between the axle and the frame.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution.

[0005] The bidirectional energy recovery device includes a protective housing fixed to the frame above the axle. Inside the protective housing, a speed-increasing gear shaft and an output shaft with parallel axes are rotatably connected. The speed-increasing gear shaft and the output shaft are connected by meshing speed-increasing gears. The output shaft is connected to a generator inside the protective housing. Inside the protective housing, a first output gear ring and a second output gear ring symmetrically connected are rotatably connected. The speed-increasing gear shaft is located between the first and second output gear rings. A first ratchet gear and a second ratchet gear are respectively sleeved on the speed-increasing gear shaft. The first output gear ring meshes with the first ratchet gear, and the second output gear ring meshes with the second ratchet gear. Both the first and second ratchet gears are connected to the speed-increasing gear shaft through ratchet pawls of the same structure. The hinge plates of the first and second output gear rings extend from the front and rear sides of the protective housing and are respectively connected to one end of the first and second connecting rod input shafts. The other ends of the first and second connecting rod input shafts are rotatably connected to the axle.

[0006] Furthermore, the first output gear ring and the second output gear ring have the same structure, both including a fixing hole. A gear ring with an arc segment is provided on one side of the fixing hole, and a hinge plate is provided on the other side of the fixing hole. The first output gear ring and the second output gear ring are hinged to the inside of the protective shell through the fixing hole. The hinge plate of the first output gear ring extends from the front opening of the protective shell to the outside of the front of the protective shell, and the hinge plate of the second output gear ring extends from the rear opening of the protective shell to the outside of the rear of the protective shell.

[0007] Furthermore, the lower end of the first connecting rod input shaft is hinged to the axle via an axle ball joint, and the upper end of the first connecting rod input shaft is hinged to the end of the hinge plate of the first output gear ring that extends out of the protective shell via a connecting rod ball joint; the lower end of the second connecting rod input shaft is hinged to the axle via an axle ball joint, and the upper end of the second connecting rod input shaft is hinged to the end of the hinge plate of the second output gear ring that extends out of the protective shell via a connecting rod ball joint.

[0008] Furthermore, both the first and second ratchet gears have external gears on their outer surfaces and internal ratchet gears with identical structures on their inner surfaces; the external gear of the first ratchet gear meshes with the gear ring of the first output gear ring, and the external gear of the second ratchet gear meshes with the gear ring of the second output gear ring.

[0009] Furthermore, two external pawls are provided on the outer surface of the speed-increasing gear shaft. The first external pawl is located inside the first ratchet gear and meshes with the inner ratchet of the first ratchet gear, while the second external pawl is located inside the second ratchet gear and meshes with the inner ratchet of the second ratchet gear.

[0010] Furthermore, an intermediate shaft is rotatably connected inside the protective shell, and the intermediate shaft is parallel to the speed-increasing gear shaft and the output shaft.

[0011] Furthermore, a primary driving speed-increasing gear is fixedly installed on the outer side of the speed-increasing gear shaft, and a primary driven speed-increasing gear and a secondary driving speed-increasing gear are fixedly installed on the intermediate shaft, wherein the primary driven speed-increasing gear meshes with the driving speed-increasing gear; a secondary driven speed-increasing gear is fixedly installed on the output shaft, and the secondary driven speed-increasing gear meshes with the secondary driving speed-increasing gear.

[0012] Furthermore, an internal spline is provided on the end face of the output shaft, and an external spline is fixedly provided on the input shaft of the generator. The internal spline on the output shaft meshes with the external spline on the generator.

[0013] Furthermore, an inertial flywheel is fixedly mounted on the outer surface of the output shaft.

[0014] The beneficial effects of this invention compared to the prior art are as follows:

[0015] When the vehicle axle moves upward relative to the frame, the first ratchet gear rotates counterclockwise under the action of the first output gear ring, thereby driving the speed-increasing gear shaft to rotate. When the vehicle axle moves downward relative to the frame, the second ratchet gear rotates counterclockwise under the action of the second output gear ring, thereby driving the speed-increasing gear shaft to rotate. That is, regardless of whether the axle moves upward or downward, it can drive the speed-increasing gear shaft to rotate. Finally, through the two-stage speed increase, the output speed of the output shaft is increased, thereby driving the generator to generate electricity, realizing bidirectional energy recovery. In this way, the energy contained in the vibration between the axle and the frame can be utilized. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram showing the relationship between the velocity v0 of the first and second link input shafts moving up and down and the time t.

[0019] Figure 3 This is a schematic diagram showing the relationship between the rotational speed n1 of the first and second output gear rings and time t.

[0020] Figure 4 This is a schematic diagram showing the relationship between the rotational speed n2 of the speed-increasing gear shaft and time t;

[0021] Figure 5 This is a schematic diagram showing the relationship between the output shaft speed n3 and time t;

[0022] Wherein, 1 is the first connecting rod input shaft, 2 is the second connecting rod input shaft, 3 is the first output gear ring, 4 is the second output gear ring, 5 is the fixing hole, 6 is the gear ring, 7 is the hinge plate, 8 is the first ratchet gear, 9 is the second ratchet gear, 10 is the speed-increasing gear shaft, 11 is the intermediate shaft, 12 is the output shaft, 13 is the first-stage active speed-increasing gear, 14 is the first-stage driven speed-increasing gear, 15 is the second-stage active speed-increasing gear, 16 is the second-stage driven speed-increasing gear, 17 is the generator, 18 is the inertia flywheel, 19 is the connecting rod ball hinge, and 20 is the axle ball hinge. Detailed Implementation

[0023] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solutions of this invention are described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0024] like Figure 1 As shown, the present invention provides a bidirectional energy recovery device, including a protective shell, which is fixedly installed at the lower end of the vehicle frame and located above the axle. A first output gear ring 3 and a second output gear ring 4 are symmetrically arranged front and rear inside the protective shell. The protective shell also contains a speed-increasing gear shaft 10, a first ratchet gear 8, a second ratchet gear 9, a first-stage active speed-increasing gear 13, a first-stage driven speed-increasing gear 14, a second-stage active speed-increasing gear 15, a second-stage driven speed-increasing gear 16, an intermediate shaft 11, an output shaft 12, and a generator 17. A first connecting rod input shaft 1 and a second connecting rod input shaft 2 are arranged outside the protective shell.

[0025] The first output gear ring 3 and the second output gear ring 4 have the same structure, both including a fixing hole 5. A gear ring 6 with an arc segment is provided on one side of the fixing hole 5, and a hinge plate 7 is provided on the other side of the fixing hole 5. The first output gear ring 3 and the second output gear ring 4 are hinged to the inside of the protective shell through the fixing hole 5. The hinge plate 7 of the first output gear ring 3 extends from the front opening of the protective shell to the outside of the front of the protective shell, and the hinge plate 7 of the second output gear ring 4 extends from the rear opening of the protective shell to the outside of the rear of the protective shell.

[0026] The lower end of the first connecting rod input shaft 1 is hinged to the axle via an axle ball joint 20, and the upper end of the first connecting rod input shaft 1 is hinged to the end of the hinge plate 7 of the first output gear ring 3 extending out of the protective shell via a connecting rod ball joint 19. The lower end of the second connecting rod input shaft 2 is hinged to the axle via an axle ball joint 20, and the upper end of the second connecting rod input shaft 2 is hinged to the end of the hinge plate 7 of the second output gear ring 4 extending out of the protective shell via a connecting rod ball joint 19. When the axle is impacted and vibrates up and down, it drives the first connecting rod input shaft 1 and the second connecting rod input shaft 2 to move up and down. The first connecting rod input shaft 1 drives the first output gear ring 3 to rotate, and the second connecting rod input shaft 2 drives the second output gear ring 4 to rotate.

[0027] The speed-increasing gear shaft 10, intermediate shaft 11, and output shaft 12 are parallel to each other, and all three are rotatably connected inside the protective shell.

[0028] The speed-increasing gear shaft 10 is located between the first output gear ring 3 and the second output gear ring 4. A first ratchet gear 8 and a second ratchet gear 9 are sequentially fitted onto the speed-increasing gear shaft 10. Both the first ratchet gear 8 and the second ratchet gear 9 have external gears on their outer surfaces and internal ratchet wheels with identical structures on their inner surfaces. The external gear of the first ratchet gear 8 meshes with the gear ring 6 of the first output gear ring 3, and the external gear of the second ratchet gear 9 meshes with the gear ring 6 of the second output gear ring 4. Two external pawls are provided on the outer surface of the speed-increasing gear shaft 10. The first external pawl is located inside the first ratchet gear 8 and meshes with its internal ratchet wheel, while the second external pawl is located inside the second ratchet gear 9 and meshes with its internal ratchet wheel.

[0029] Since both the first ratchet gear 8 and the second ratchet gear 9 are connected to the speed-increasing gear shaft 10 through a ratchet and pawl structure, when the first ratchet gear 8 and the second ratchet gear 9 rotate counterclockwise, the speed-increasing gear shaft 10 rotates synchronously with the first ratchet gear 8 and the second ratchet gear 9; when the first ratchet gear 8 and the second ratchet gear 9 rotate clockwise, the speed-increasing gear shaft 10 does not rotate with the first ratchet gear 8 and the second ratchet gear 9, and the first ratchet gear 8 and the second ratchet gear 9 spin freely on the speed-increasing gear shaft 10.

[0030] A primary driving speed-increasing gear 13 is also fixedly mounted on the speed-increasing gear shaft 10. A primary driven speed-increasing gear 14 and a secondary driving speed-increasing gear 15 are fixedly mounted on the intermediate shaft 11, wherein the primary driven speed-increasing gear 14 meshes with the primary driving speed-increasing gear 13.

[0031] A secondary driven speed-increasing gear 16 is fixedly installed on the output shaft 12, and the secondary driven speed-increasing gear 16 meshes with the secondary driven speed-increasing gear 15.

[0032] An internal spline is provided on the end face of the output shaft 12, and an external spline is fixedly provided on the input shaft of the generator 17. The internal spline on the output shaft 12 meshes with the external spline on the generator 17. When the output shaft 12 rotates, it drives the input shaft of the generator 17 to rotate synchronously, thereby driving the generator 17 to generate electricity.

[0033] An inertial flywheel 18 is fixedly mounted on the outer surface of the output shaft 12.

[0034] The working principle of this invention is as follows:

[0035] Irregular impacts from the ground cause the first link input shaft 1 and the second link input shaft 2 to move up and down. The diagram showing the relationship between the velocity v0 of the first link input shaft 1 and the second link input shaft 2 moving up and down and time t is as follows: Figure 2 As shown.

[0036] When the vehicle axle moves upward relative to the frame, it drives both the first connecting rod input shaft 1 and the second connecting rod input shaft 2 to move upward. The first output gear ring 3 rotates clockwise under the action of the first connecting rod input shaft 1, and the second output gear ring 4 rotates counterclockwise under the action of the second connecting rod input shaft 2. Consequently, the first ratchet gear 8 rotates counterclockwise under the action of the first output gear ring 3, and the second ratchet gear 9 rotates clockwise under the action of the second output gear ring 4.

[0037] When the vehicle axle moves downward relative to the frame, it causes both the first connecting rod input shaft 1 and the second connecting rod input shaft 2 to move downward. The first output gear ring 3 rotates counterclockwise under the action of the first connecting rod input shaft 1, and the second output gear ring 4 rotates clockwise under the action of the second connecting rod input shaft 2. Consequently, the first ratchet gear 8 rotates clockwise under the action of the first output gear ring 3, and the second ratchet gear 9 rotates counterclockwise under the action of the second output gear ring 4.

[0038] The up-and-down motion of the first connecting rod input shaft 1 and the second connecting rod input shaft 2, after passing through the fixing hole 5, is converted into the rotational motion of the first output gear ring 3 and the second output gear ring 4. A schematic diagram showing the relationship between the rotational speed n1 of the first output gear ring 3 and the second output gear ring 4 and time t is shown below. Figure 3 As shown.

[0039] Because the ratchet and pawl structure can only transmit power in one direction, the speed-increasing gear shaft 10 can only be driven to rotate when the ratchet gear rotates counterclockwise; it cannot be driven to rotate clockwise. Therefore, when the axle moves upward, the first ratchet gear 8 rotates counterclockwise under the action of the first output gear ring 3, thus driving the speed-increasing gear shaft 10 to rotate. The second ratchet gear 9 rotates clockwise under the action of the second output gear ring 4, causing it to idle on the speed-increasing gear shaft 10. When the axle moves downward, the second ratchet gear 9 rotates counterclockwise under the action of the second output gear ring 4, thus driving the speed-increasing gear shaft 10 to rotate. The first ratchet gear 8 rotates clockwise under the action of the first output gear ring 3, causing it to idle on the speed-increasing gear shaft 10. From the above description, it can be seen that regardless of whether the axle moves upward or downward, the speed-increasing gear shaft 10 can be driven to rotate in one direction by the counterclockwise rotation of a single ratchet gear. A schematic diagram showing the relationship between the speed n2 of the speed-increasing gear shaft 10 and time t is shown below. Figure 4 As shown.

[0040] The rotation of the speed-increasing gear shaft 10, through the transmission of the first-stage driving speed-increasing gear 13 and the first-stage driven speed-increasing gear 14, and the transmission of the second-stage driving speed-increasing gear 15 and the second-stage driven speed-increasing gear 16, causes the output shaft 12 to rotate accordingly. After the two-stage speed-increasing transmission, the rotational speed of the output shaft 12 increases. Furthermore, the inertial force generated by the inertial flywheel 18 on the output shaft 12 ensures smooth rotation of the output shaft 12. The schematic diagram showing the relationship between the rotational speed n3 of the output shaft 12 and time t is shown below. Figure 5 As shown, the rotational speed transmitted to the output shaft 8 drives the generator 17 to generate electricity, thus achieving energy recovery. Therefore, regardless of whether the axle moves upward or downward, the energy of the vibration can be recovered through the bidirectional energy recovery device.

[0041] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A bidirectional energy recovery device, characterized in that: The vehicle includes a protective housing, which is fixed to the frame above the axle. Inside the protective housing, a speed-increasing gear shaft (10) and an output shaft (12) with parallel axes are rotatably connected. The speed-increasing gear shaft (10) and the output shaft (12) are connected by meshing speed-increasing gears. The output shaft (12) is connected to a generator (17) inside the protective housing. Inside the protective housing, a first output gear ring (3) and a second output gear ring (4) are rotatably connected. The speed-increasing gear shaft (10) is located between the first output gear ring (3) and the second output gear ring (4). A first ratchet gear (8) and a second ratchet gear are respectively fitted on the speed-increasing gear shaft (10). Gear (9), first output gear ring (3) meshes with first ratchet gear (8), second output gear ring (4) meshes with second ratchet gear (9), first ratchet gear (8) and second ratchet gear (9) are connected to speed-increasing gear shaft (10) through ratchet and pawl structure of the same structure, the hinge plate (7) of first output gear ring (3) and second output gear ring (4) extend from the front and rear sides of the protective shell respectively and are connected to one end of first connecting rod input shaft (1) and second connecting rod input shaft (2) respectively, and the other end of first connecting rod input shaft (1) and second connecting rod input shaft (2) are rotatably connected to the axle; The first output gear ring (3) and the second output gear ring (4) have the same structure, both including a fixing hole (5). A gear ring (6) with an arc segment is provided on one side of the fixing hole (5), and a hinge plate (7) is provided on the other side of the fixing hole (5). The first output gear ring (3) and the second output gear ring (4) are hinged to the inside of the protective shell through the fixing hole (5). The hinge plate (7) of the first output gear ring (3) extends from the front opening of the protective shell to the outside of the front of the protective shell, and the hinge plate (7) of the second output gear ring (4) extends from the rear opening of the protective shell to the outside of the rear of the protective shell. The lower end of the first connecting rod input shaft (1) is hinged to the axle via an axle ball joint (20), and the upper end of the first connecting rod input shaft (1) is hinged to the end of the hinge plate (7) of the first output gear ring (3) that extends out of the protective shell via a connecting rod ball joint (19); the lower end of the second connecting rod input shaft (2) is hinged to the axle via an axle ball joint (20), and the upper end of the second connecting rod input shaft (2) is hinged to the end of the hinge plate (7) of the second output gear ring (4) that extends out of the protective shell via a connecting rod ball joint (19).

2. The bidirectional energy recovery device according to claim 1, characterized in that: Both the first ratchet gear (8) and the second ratchet gear (9) have external gears on their outer sides and internal ratchets with the same structure on their inner sides; the external gear of the first ratchet gear (8) meshes with the gear ring (6) of the first output gear ring (3), and the external gear of the second ratchet gear (9) meshes with the gear ring (6) of the second output gear ring (4).

3. The bidirectional energy recovery device according to claim 2, characterized in that: Two external pawls are provided on the outer surface of the speed-increasing gear shaft (10). The first external pawl is located inside the first ratchet gear (8) and meshes with the inner ratchet of the first ratchet gear (8). The second external pawl is located inside the second ratchet gear (9) and meshes with the inner ratchet of the second ratchet gear (9).

4. The bidirectional energy recovery device according to claim 1, characterized in that: The protective shell is also rotatably connected to an intermediate shaft (11), which is parallel to the speed-increasing gear shaft (10) and the output shaft (12).

5. The bidirectional energy recovery device according to claim 4, characterized in that: The speed-increasing gear shaft (10) has a first-stage active speed-increasing gear (13) fixedly installed on its outer side, and a first-stage driven speed-increasing gear (14) and a second-stage active speed-increasing gear (15) fixedly installed on the intermediate shaft (11), wherein the first-stage driven speed-increasing gear (14) meshes with the active speed-increasing gear; a second-stage driven speed-increasing gear (16) is fixedly installed on the output shaft (12), and the second-stage driven speed-increasing gear (16) meshes with the second-stage active speed-increasing gear (15).

6. The bidirectional energy recovery device according to claim 1, characterized in that: An internal spline is provided on the end face of the output shaft (12), and an external spline is fixedly provided on the input shaft of the generator (17). The internal spline on the output shaft (12) meshes with the external spline on the generator (17).

7. The bidirectional energy recovery device according to claim 1, characterized in that: An inertial flywheel (18) is fixedly installed on the outer surface of the output shaft (12).

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