Mechanical transmission and hydraulic pressure coordinated automobile braking energy recovery integrated device

Abstract

The invention belongs to the technical field of energy recovery, and provides a mechanical transmission and hydraulic pressure coordinated automobile brake energy recovery integrated device which comprises a transmission shaft, the transmission shaft is connected with a planetary gear assembly, and a planetary gear set is connected with a flywheel and a hydraulic pump; the planetary gear assembly comprises a sun gear, the sun gear is meshed with planet gears, the planet gears are meshed with gear rings, the sun gear, the planet gears and the gear rings are located on the same plane, the planet gears are fixedly connected with planet shafts respectively, the planet shafts are fixedly connected with a planet carrier, and the planet carrier is fixedly connected with an output shaft. Kinetic energy is transmitted to the flywheel or the hydraulic pump through the planetary gear assembly, energy can be flexibly recycled under different braking working conditions, and the hydraulic pump can rapidly absorb a large amount of energy during emergency braking; during conventional braking, the flywheel can efficiently store energy, and the combination mode overcomes the limitation of a single energy storage mode under different working conditions.

Description

Technical Field

[0001] This invention belongs to the field of energy recovery technology, specifically an integrated device for automobile braking energy recovery that combines mechanical transmission and hydraulic coordination. Background Technology

[0002] Regenerative braking is a technology that converts and stores the kinetic energy that would otherwise be consumed during braking. In traditional automotive braking systems, the vehicle's kinetic energy is dissipated as heat through friction between the brake pads and brake discs. Regenerative braking systems can effectively utilize this energy.

[0003] Currently, commonly used braking energy recovery methods include hydraulic system energy storage and mechanical flywheel energy storage. During emergency braking, although the hydraulic system can absorb energy quickly, its low efficiency means that some energy cannot be effectively recovered. Although the mechanical flywheel is more efficient, its limited energy storage capacity also prevents it from fully recovering braking energy. Single hydraulic system energy storage or mechanical flywheel energy storage cannot efficiently recover all braking energy under different braking conditions, resulting in a large amount of energy waste and reducing the energy utilization efficiency of the vehicle.

[0004] To address the problems raised in the background art, those skilled in the art have proposed an integrated vehicle braking energy recovery device that combines mechanical transmission and hydraulic coordination. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides an integrated vehicle braking energy recovery device that combines mechanical transmission and hydraulic coordination. This solves the problem that existing technologies using a single hydraulic system or mechanical flywheel for energy storage cannot efficiently recover all braking energy under different braking conditions, resulting in significant energy waste and reduced energy utilization efficiency of the vehicle.

[0006] An integrated vehicle braking energy recovery device combining mechanical transmission and hydraulic coordination includes a drive shaft connected to a planetary gear assembly, which in turn is connected to a flywheel and a hydraulic pump.

[0007] The planetary gear assembly includes a sun gear, which meshes with planet gears, and the planet gears mesh with a ring gear. The sun gear, planet gears, and ring gear are located in the same plane. Several planet gears are respectively fixedly connected to planet shafts, several planet shafts are fixedly connected to planet carriers, and planet carriers are fixedly connected to output shafts.

[0008] The output shaft is fixedly connected to the flywheel. The inner and outer rings of the gear ring are respectively provided with meshing teeth. The outer ring of the gear ring meshes with an output gear. The output gear is fixedly connected to the hydraulic pump.

[0009] Preferably, the gear ring is provided with a first limiting assembly;

[0010] The first limiting assembly comprises a mounting frame provided with a receiving groove, a hydraulic cylinder fixedly installed on the mounting frame, a variable-diameter cavity formed in the hydraulic cylinder, a first push plate and a second push plate slidably connected to the variable-diameter cavity, hydraulic oil arranged between the first push plate and the second push plate, a first push rod fixedly connected to the first push plate, a second push rod fixedly connected to the second push plate, the first push rod and the second push rod slidingly penetrating through the hydraulic cylinder, and an extrusion plate fixedly connected to the first push rod.

[0011] Preferably, the extrusion plate is an arc-shaped plate, and the extrusion plate is located in the receiving groove.

[0012] Preferably, the gear ring is located in the receiving groove, and the extrusion plate is located on one side of the gear ring.

[0013] Preferably, the variable-diameter cavity is divided into a first chamber and a second chamber, the first push plate is located in the first chamber, the second push plate is located in the second chamber, the diameter of the first chamber is greater than that of the second chamber, and the length of the first chamber is shorter than that of the second chamber.

[0014] Preferably, the output shaft is provided with a second limiting assembly;

[0015] The second limiting assembly comprises a bevel gear provided with a bevel ring.

[0016] The bevel gear is fixedly connected to the output shaft.

[0017] Preferably, the first limiting assembly and the second limiting assembly are connected to an adjusting assembly.

[0018] The adjusting assembly comprises a driving motor, a rotating disc fixedly connected to the output end of the driving motor, a driving rod fixedly connected to the rotating disc, an adjusting frame connected to the driving rod, a fixed plate fixedly connected to one side of the adjusting frame, and a connecting plate fixedly connected to the other side of the adjusting frame.

[0019] The second push rods are fixedly connected to the fixed plate, and the connecting plate is fixedly connected to the bevel ring.

[0020] Preferably, the driving rod is eccentrically arranged on the rotating disc, the adjusting frame is in the shape of a cross, the adjusting frame is provided with a vertical groove, and the driving rod is slidably connected to the vertical groove.

[0021] Preferably, the transmission shaft is connected to a multi-stage gear assembly.

[0022] The multi-stage gear assembly comprises a first gear, the first gear is engaged with a second gear, the second gear is fixedly connected with a primary rotating shaft, the primary rotating shaft is fixedly connected with a third gear, the third gear is engaged with a fourth gear, and the fourth gear is fixedly connected with a secondary rotating shaft.

[0023] The first gear is fixedly connected with a transmission shaft, and the secondary rotating shaft is fixedly connected with a sun gear.

[0024] Preferably, the number of teeth of the first gear is more than that of the second gear, the number of teeth of the second gear is less than that of the third gear, and the number of teeth of the third gear is more than that of the fourth gear.

[0025] Compared with the prior art, the present application has the following beneficial effects:

[0026] 1. The planetary gear assembly can transmit kinetic energy to the flywheel or the hydraulic pump, so that energy can be flexibly recovered under different braking conditions. In emergency braking, the hydraulic pump can quickly absorb a large amount of energy; in normal braking, the flywheel can efficiently store energy. This combination overcomes the limitations of single energy storage mode under different conditions, significantly improves the recovery efficiency of braking energy, and reduces energy waste.

[0027] 2. The adjusting assembly can make the first limiting assembly or the second limiting assembly work. When the first limiting assembly works, the gear ring is fixedly limited, and at this time, the output shaft drives the flywheel to work. When the second limiting assembly works, the output shaft is fixedly limited, and at this time, the gear ring drives the hydraulic pump to work. The energy storage mode can be flexibly switched according to different braking intensities and conditions. This flexibility makes the device adapt to various complex driving conditions and improves the energy utilization efficiency of the vehicle under different road conditions.

[0028] 3. The multi-stage gear assembly and the planetary gear assembly make the power transmission more stable, reduce the impact and vibration, and improve the stability and reliability of the whole device. DETAILED DESCRIPTION

[0029] Figure 1 It is a first overall schematic view of a mechanical transmission and hydraulic cooperative automobile braking energy recovery integrated device.

[0030] Figure 2 It is a second overall schematic view of a mechanical transmission and hydraulic cooperative automobile braking energy recovery integrated device.

[0031] Figure 3 It is an enlarged view of A in Figure 1

[0032] Figure 4 ​It is a schematic view of first limiting component, second limiting component and adjusting component of a kind of mechanical transmission and hydraulic collaborative automobile brake energy recovery integrated device;

[0033] Figure 5 It is a sectional view of variable-diameter cavity of a kind of mechanical transmission and hydraulic collaborative automobile brake energy recovery integrated device;

[0034] Figure 6 It is Figure 2 The enlarged schematic view in B in it.

[0035] In the figure:

[0036] 1, transmission shaft;2, planetary gear assembly;201, sun gear;202, planet wheel;203, gear ring;204, planet shaft;205, planet carrier;206, output shaft;3, flywheel;4, hydraulic pump;5, output gear;6, first limiting component;601, mounting frame;602, containing groove;603, hydraulic cylinder;604, variable-diameter cavity;605, first push plate;606, second push plate;607, first push rod;608, second push rod;609, extrusion plate;7, second limiting component;701, bevel gear;702, bevel gear ring;8, adjusting component;801, drive motor;802, rotary disc;803, drive rod;804, adjusting frame;805, fixed plate;806, connecting plate;807, vertical slot;9, multi-stage gear assembly;901, first gear;902, second gear;903, primary rotary shaft;904, third gear;905, fourth gear;906, secondary rotary shaft. DETAILED DESCRIPTION

[0037] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0038] Example one

[0039] As shown in the accompanying Figure 1 to the accompanying Figure 3 The present embodiment provides a kind of mechanical transmission and hydraulic collaborative automobile brake energy recovery integrated device, including transmission shaft 1, wherein transmission shaft 1 is connected with the wheel of automobile, transmission shaft 1 is transmitted to multi-stage gear assembly 9 and planetary gear assembly 2 by the kinetic energy generated when wheel brake, transmission shaft 1 is connected with planetary gear assembly 2, planetary gear group is connected with flywheel 3 and hydraulic pump 4, wherein planetary gear set drives flywheel 3 or hydraulic pump 4 to work, and energy storage is carried out;

[0040] The planetary gear assembly 2 comprises a sun gear 201, wherein the sun gear 201 receives power from the transmission shaft 1 and transmits the power to the planetary gears 202, the sun gear 201 is engaged with the planetary gears 202, power distribution and transmission are realized through the planetary gears 202 and the planet carrier 205, the planetary gears 202 are engaged with the ring gear 203, the sun gear 201, the planetary gears 202 and the ring gear 203 are located in the same plane, a plurality of planetary gears 202 are fixedly connected with the planet shafts 204 respectively, and the planet shafts 204 are fixedly connected with the planet carrier 205, wherein the ring gear 203 and the planet carrier 205 are rotatably arranged in the automobile, and the planet carrier 205 is fixedly connected with the output shaft 206; different modes of brake energy recovery can be realized by driving the output shaft 206 or the ring gear 203 to rotate through the sun gear 201; in emergency braking, the sun gear 201 drives the ring gear 203 to rotate, and the hydraulic pump 4 works to quickly absorb a large amount of energy; in normal braking, the sun gear 201 drives the output shaft 206 to rotate, and the flywheel 3 stores energy efficiently; this combination mode can overcome the limitations of a single energy storage mode under different working conditions, significantly improve the recovery efficiency of brake energy, and reduce energy waste.

[0041] The output shaft 206 is fixedly connected with the flywheel 3, the inner ring and the outer ring of the ring gear 203 are provided with meshing teeth respectively, the outer ring of the ring gear 203 is engaged with the output gear 5, the output gear 5 is fixedly connected with the hydraulic pump 4, and the hydraulic pump 4 is connected with the hydraulic accumulator; in emergency braking, through the transmission of the ring gear 203 and the output gear 5, the hydraulic pump 4 compresses hydraulic oil into the hydraulic accumulator to realize hydraulic energy storage.

[0042] As can be known from the above, during braking, the transmission shaft 1 transmits the kinetic energy generated when the wheels are braked to the planetary gear assembly 2, and then drives the sun gear 201 to work; the braking condition is divided into emergency braking and normal braking; in emergency braking, the sun gear 201 drives the ring gear 203 to rotate, the ring gear 203 drives the meshing teeth to work, at this time, the hydraulic pump 4 compresses hydraulic oil into the hydraulic accumulator to realize hydraulic energy storage, which can quickly absorb a large amount of energy; in normal braking, the sun gear 201 drives the output shaft 206 to rotate, and then drives the flywheel 3 to rotate, and the flywheel 3 rotates to store energy efficiently; this combination mode can overcome the limitations of a single energy storage mode under different working conditions, significantly improve the recovery efficiency of brake energy, and reduce energy waste.

[0043] Embodiment two

[0044] As shown in the accompanying drawings Figure 1 to the accompanying drawings Figure 5 , this embodiment is basically the same as the previous embodiment, and the difference lies in that the ring gear 203 is provided with a first limiting assembly 6, wherein the first limiting assembly 6 can limit and fix the ring gear 203, so that the ring gear 203 cannot rotate;

[0045] The first limiting assembly 6 comprises a mounting frame 601, wherein the mounting frame 601 is fixedly arranged in the automobile, the mounting frame 601 is provided with a containing groove 602, the mounting frame 601 is fixedly provided with a hydraulic cylinder 603, one end of the hydraulic cylinder 603 extends into the containing groove 602, the hydraulic cylinder 603 is provided with a variable-diameter cavity 604, the first push plate 605 and the second push plate 606 are slidably connected in the variable-diameter cavity 604, the hydraulic oil is arranged between the first push plate 605 and the second push plate 606, the first push plate 605 is fixedly connected with a first push rod 607, the second push plate 606 is fixedly connected with a second push rod 608, the first push rod 607 and the second push rod 608 slidably extend through the hydraulic cylinder 603, the first push rod 607 is fixedly connected with a pressing plate 609, when the adjusting frame 804 moves in one direction, the fixed plate 805 pushes the second push rod 608, the second push plate 606 moves in the variable-diameter cavity 604, the hydraulic oil transmits kinetic energy, the first push plate 605 and the first push rod 607 move, the first push rod 607 pushes the pressing plate 609 to abut against the gear ring 203, the gear ring 203 is fixed by friction, and the gear ring 203 cannot rotate.

[0046] Specifically, the pressing plate 609 is an arc-shaped plate, which can better abut against the gear ring 203 and improve the fixing effect on the gear ring 203, and the pressing plate 609 is located in the containing groove 602.

[0047] Further, the gear ring 203 is located in the containing groove 602, and the pressing plate 609 is located on one side of the gear ring 203.

[0048] Further, the variable-diameter cavity 604 is divided into a first cavity and a second cavity, the first push plate 605 is located in the first cavity, the second push plate 606 is located in the second cavity, the diameter of the first cavity is greater than that of the second cavity, and the length of the first cavity is shorter than that of the second cavity, so that the first push plate 605 is moved by providing the shapes of the first cavity and the second cavity and the second push plate 606 provides greater thrust through a longer stroke.

[0049] Further, the output shaft 206 is provided with a second limiting assembly 7, wherein the second limiting assembly 7 can limit and fix the output shaft 206, so that the output shaft 206 cannot rotate.

[0050] The second limiting assembly 7 comprises a bevel gear 701, and the bevel gear 701 is provided with a bevel ring 702, when the adjusting frame 804 moves in the other direction, the connecting plate 806 moves with the bevel ring 702, the bevel ring 702 is sleeved on the bevel gear 701, and the output shaft 206 is fixed and cannot rotate due to the limiting of the bevel ring 702 on the bevel gear 701.

[0051] The bevel gear 701 is fixedly connected with the output shaft 206.

[0052] Furthermore, the first limiting component 6 and the second limiting component 7 are connected to an adjustment component 8, wherein the adjustment component 8 is used to adjust the working state of the first limiting component 6 and the second limiting component 7, so that the gear ring 203 is fixed and the output shaft 206 can rotate, or the gear ring 203 can rotate and the output shaft 206 is fixed.

[0053] The adjustment assembly 8 includes a drive motor 801, which is fixedly installed inside the vehicle. The operation of the drive motor 801 is controlled by the vehicle system and can rotate according to braking needs. A rotating disk 802 is fixedly connected to the output end of the drive motor 801. A drive rod 803 is fixedly connected to the rotating disk 802. An adjustment frame 804 is connected to the drive rod 803. A fixing plate 805 is fixedly connected to one side of the adjustment frame 804, and a connecting plate 806 is fixedly connected to the other side of the adjustment frame 804. When the drive motor 801 operates, it drives the rotating disk 802 to rotate, which in turn drives the drive rod 803 to perform a circular motion. During rotation, the drive rod 803 will move the adjustment frame 804 back and forth through the vertical groove 807. When the adjustment frame 804 moves in one direction, the first limiting assembly 6 is activated. When the adjustment frame 804 moves in the other direction, the second limiting assembly 7 is activated.

[0054] Several second push rods 608 are fixedly connected to the fixing plate 805, and the connecting plate 806 is fixedly connected to the helical tooth ring 702.

[0055] Furthermore, the drive rod 803 is eccentrically positioned on the rotating disk 802, the adjustment frame 804 is cross-shaped, the adjustment frame 804 is slidably positioned inside the vehicle, the adjustment frame 804 has a vertical groove 807, and the drive rod 803 is slidably connected to the vertical groove 807.

[0056] As can be seen from the above, the vehicle system controls the drive motor 801 to work according to different braking conditions. The drive motor 801 drives the rotating disk 802 to rotate, which in turn drives the drive rod 803 to make a circular motion. During the rotation, the drive rod 803 will move the adjustment bracket 804 back and forth through the vertical slot 807.

[0057] During emergency braking, the adjusting frame 804 moves in another direction, the second limiting component 7 works, the connecting plate 806 moves with the helical gear ring 702, the helical gear ring 702 is fitted on the helical gear 701, and because the helical gear 701 is limited by the helical gear ring 702, the output shaft 206 is fixed and cannot rotate. At this time, the gear ring 203 rotates normally, and the gear ring 203 drives the meshing teeth to work. The hydraulic pump 4 compresses the hydraulic oil into the hydraulic accumulator to realize hydraulic energy storage, which can quickly absorb a large amount of energy.

[0058] When the conventional brake is adjusted, the adjusting frame 804 moves in one direction, the first limiting assembly 6 works, the fixed plate 805 pushes the second push rod 608, the second push plate 606 moves in the variable diameter cavity 604, the hydraulic oil transmits kinetic energy, the first push plate 605 and the first push rod 607 move, the first push rod 607 pushes the extrusion plate 609 to adhere to the gear ring 203, the gear ring 203 is fixed through friction, the output shaft 206 rotates normally, and then drives the flywheel 3 to rotate, and the flywheel 3 rotates to store energy efficiently;

[0059] The energy storage mode can be flexibly switched according to different brake intensities and working conditions, and the flexibility enables the device to adapt to various complex driving conditions and improves the energy utilization efficiency of the vehicle under different road conditions.

[0060] Embodiment three

[0061] As shown in the accompanying Figure 1 to the accompanying Figure 6 , the embodiment is basically the same as the previous embodiment, and the difference lies in that the transmission shaft 1 is connected with a multi-stage gear assembly 9.

[0062] The multi-stage gear assembly 9 comprises a first gear 901, the first gear 901 is engaged with a second gear 902, the second gear 902 is fixedly connected with a first rotating shaft 903, the first rotating shaft 903 is fixedly connected with a third gear 904, the third gear 904 is engaged with a fourth gear 905, the fourth gear 905 is fixedly connected with a second rotating shaft 906, and the first rotating shaft 903 and the second rotating shaft 906 are respectively rotatably arranged in the automobile. The first gear 901 is driven to rotate by the transmission shaft 1, the second gear 902 is driven to rotate by the first gear 901, the first rotating shaft 903 is driven to rotate by the second gear 902, the third gear 904 is driven to rotate by the first rotating shaft 903, the fourth gear 905 is driven to rotate by the third gear 904, and the second rotating shaft 906 is driven to rotate by the fourth gear 905, and finally the sun gear 201 is driven to rotate.

[0063] The first gear 901 is fixedly connected with the transmission shaft 1, and the second rotating shaft 906 is fixedly connected with the sun gear 201.

[0064] Specifically, the number of teeth of the first gear 901 is more than that of the second gear 902, the number of teeth of the second gear 902 is less than that of the third gear 904, the number of teeth of the third gear 904 is more than that of the fourth gear 905, and the low-speed and high-torque kinetic energy from the wheels is converted into high-speed and low-torque form through the cooperation of the first gear 901, the second gear 902, the third gear 904 and the fourth gear 905, so that the hydraulic pump 4 or the flywheel 3 obtains higher speed, to adapt to the subsequent energy conversion and storage work requirements, and then improve the energy recovery efficiency.

[0065] From the above, the wheel drives the transmission shaft 1 to rotate, the transmission shaft 1 drives the first gear 901 to rotate, the first gear 901 drives the second gear 902 to rotate, the second gear 902 drives the first-stage rotating shaft 903 to rotate, and then drives the third gear 904 to rotate, the third gear 904 drives the fourth gear 905 to rotate, the fourth gear 905 drives the second-stage rotating shaft 906 to rotate, and finally drives the sun gear 201 to rotate, the adjusting assembly 8 controls the state of the first limiting assembly 6 and the second limiting assembly 7, and transmits kinetic energy to the hydraulic pump 4 or the flywheel 3;Through the cooperation of the first gear 901, the second gear 902, the third gear 904 and the fourth gear 905, the low-speed and high-torque kinetic energy transmitted by the wheel is converted into high-speed and low-torque form, so that the hydraulic pump 4 or the flywheel 3 obtains higher speed, to adapt to the working requirements of subsequent energy conversion and storage, and then improve the energy recovery efficiency.

[0066] In the drawings of the embodiments of the present application, only the structures related to the embodiments of the present application are involved, and other structures can be referred to the general design, and in the case of no conflict, the same embodiments and different embodiments of the present application can be combined with each other.

[0067] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0068] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0069] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples, without contradiction.

Claims

1. An integrated vehicle braking energy recovery device combining mechanical transmission and hydraulic coordination, characterized in that: It includes a drive shaft (1), which is connected to a planetary gear assembly (2), which is connected to a flywheel (3) and a hydraulic pump (4); The planetary gear assembly (2) includes a sun gear (201), which meshes with planet gears (202). The planet gears (202) mesh with a ring gear (203). The sun gear (201), planet gears (202), and ring gear (203) are located in the same plane. A plurality of planet gears (202) are fixedly connected to planet shafts (204). A plurality of planet shafts (204) are fixedly connected to planet carriers (205). The planet carriers (205) are fixedly connected to output shafts (206). The output shaft (206) is fixedly connected to the flywheel (3). The inner and outer rings of the gear ring (203) are respectively provided with meshing teeth. The outer ring of the gear ring (203) is meshed with the output gear (5). The output gear (5) is fixedly connected to the hydraulic pump (4).

2. The integrated vehicle braking energy recovery device combining mechanical transmission and hydraulic coordination as described in claim 1, characterized in that: The gear ring (203) is equipped with a first limiting component (6); The first limiting component (6) includes a mounting bracket (601), which has a receiving groove (602). A hydraulic cylinder (603) is fixedly mounted on the mounting bracket (601). One end of the hydraulic cylinder (603) extends into the receiving groove (602). A variable diameter cavity (604) is provided inside the hydraulic cylinder (603). A first push plate (605) and a second push plate (606) are slidably connected to the variable diameter cavity (604). Hydraulic oil is provided between the first push plate (605) and the second push plate (606). A first push rod (607) is fixedly connected to the first push plate (605). A second push rod (608) is fixedly connected to the second push plate (606). The first push rod (607) and the second push rod (608) slide through the hydraulic cylinder (603). A pressing plate (609) is fixedly connected to the first push rod (607).

3. The integrated vehicle braking energy recovery device combining mechanical transmission and hydraulic coordination as described in claim 2, characterized in that: The extrusion plate (609) is an arc-shaped plate, and the extrusion plate (609) is located in the receiving groove (602).

4. The integrated vehicle braking energy recovery device combining mechanical transmission and hydraulic coordination as described in claim 3, characterized in that: The toothed ring (203) is located in the receiving groove (602), and the extrusion plate (609) is located on one side of the toothed ring (203).

5. The integrated vehicle braking energy recovery device combining mechanical transmission and hydraulic coordination as described in claim 4, characterized in that: The variable diameter cavity (604) is divided into a first chamber and a second chamber. The first push plate (605) is located in the first chamber, and the second push plate (606) is located in the second chamber. The diameter of the first chamber is larger than that of the second chamber, and the length of the first chamber is shorter than that of the second chamber.

6. The integrated vehicle braking energy recovery device combining mechanical transmission and hydraulic coordination as described in claim 5, characterized in that: The output shaft (206) is equipped with a second limiting component (7); The second limiting component (7) includes a helical gear (701), and the helical gear (701) is equipped with a helical gear ring (702); The helical gear (701) is fixedly connected to the output shaft (206).

7. The integrated vehicle braking energy recovery device combining mechanical transmission and hydraulic coordination as described in claim 6, characterized in that: The first limiting component (6) and the second limiting component (7) are connected to an adjustment component (8); The adjustment assembly (8) includes a drive motor (801), the output end of which is fixedly connected to a rotating disk (802), the rotating disk (802) is fixedly connected to a drive rod (803), the drive rod (803) is connected to an adjustment frame (804), a fixing plate (805) is fixedly connected to one side of the adjustment frame (804), and a connecting plate (806) is fixedly connected to the other side of the adjustment frame (804). Several second push rods (608) are fixedly connected to a fixing plate (805), and the connecting plate (806) is fixedly connected to a helical toothed ring (702).

8. The integrated vehicle braking energy recovery device combining mechanical transmission and hydraulic coordination as described in claim 7, characterized in that: The drive rod (803) is eccentrically mounted on the rotating disk (802), the adjustment frame (804) is cross-shaped, the adjustment frame (804) has a vertical groove (807), and the drive rod (803) is slidably connected to the vertical groove (807).

9. The integrated vehicle braking energy recovery device combining mechanical transmission and hydraulic coordination as described in claim 8, characterized in that: The drive shaft (1) is connected to a multi-stage gear assembly (9); The multi-stage gear assembly (9) includes a first gear (901), which meshes with a second gear (902). The second gear (902) is fixedly connected to a first-stage rotating shaft (903). The first-stage rotating shaft (903) is fixedly connected to a third gear (904). The third gear (904) meshes with a fourth gear (905). The fourth gear (905) is fixedly connected to a second-stage rotating shaft (906). The first gear (901) is fixedly connected to the transmission shaft (1), and the second-stage rotating shaft (906) is fixedly connected to the sun gear (201).

10. The integrated vehicle braking energy recovery device combining mechanical transmission and hydraulic coordination as described in claim 9, characterized in that: The first gear (901) has more teeth than the second gear (902), the second gear (902) has fewer teeth than the third gear (904), and the third gear (904) has more teeth than the fourth gear (905).

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