Electro-hydraulic double-drive type integrated power system

Abstract

The invention relates to the technical field of hybrid power, in particular to an electric and hydraulic double-drive type integrated power system which comprises a gear box, a power system and a hydraulic system. The input assembly comprises an electric driving part and a hydraulic driving part, and the output end of the electric driving part and the output end of the hydraulic driving part are both arranged in the gear box; the input end of the output shaft is arranged in the gear box; and the transmission assembly is arranged in the gearbox and used for enabling the output end of the input assembly to be in transmission connection with the input end of the output shaft, the transmission assembly comprises two transmission teeth and an adapter cylinder connected to the output shaft, and the two transmission teeth are in transmission connection with the electric drive part and the hydraulic drive part respectively. The rotatable tooth block is arranged to serve as a bridge for connecting the transfer cylinder and the transmission teeth, a traditional meshing mode is replaced by a wrapping meshing mode achieved through rotation, the meshing area is increased, rigid collision caused by dislocation during meshing can be avoided through a rotary opening and closing mode, and the pause feeling is effectively weakened.

Description

Technical Field

[0001] The present invention relates to the technical field of hybrid power, in particular to an electric and hydraulic dual-drive integrated power system. Background Art

[0002] The electric and hydraulic dual-drive integrated power system is a power system that combines electric motors and hydraulic drive technology. The purpose of this system is to utilize the advantages of two different drive methods to achieve higher efficiency, better performance and a wider range of applications. It can flexibly adjust the power output mode according to load changes. It can use electric or hydraulic drive alone, or both at the same time to adapt to complex and changing working environments.

[0003] In the prior art, the switching of the two powers is generally achieved through a gearbox, and a clutch is used to control the meshing state between the gears; however, since the collision between the teeth is inevitable when the two gears undergo axial relative displacement, radial impact will be generated and there will be an obvious sense of frustration. Summary of the invention

[0004] In view of the problems of the prior art, the present invention provides an electric and hydraulic dual-drive integrated power system, and the specific technical solution is as follows:

[0005] An electric and hydraulic dual-drive integrated power system, comprising:

[0006] Gearbox;

[0007] An input assembly, the input assembly comprising an electric drive part and a hydraulic drive part, and the output ends of the electric drive part and the hydraulic drive part are both placed in the gear box;

[0008] an output shaft, the input end of which is disposed in the gear box;

[0009] and a transmission assembly, which is arranged in the gear box and is used to make the output end of the input assembly connected to the input end of the output shaft by transmission. The transmission assembly includes two transmission teeth and a transfer cylinder connected to the output shaft. The two transmission teeth are respectively connected to the electric drive part and the hydraulic drive part by transmission. The transfer cylinder is arranged between the two transmission teeth, and a tooth block is rotatably arranged on the end surface of the transfer cylinder facing the transmission teeth. The tooth block has at least an extended state and a retracted state when rotating.

[0010] In the unfolded state, the gear block extends radially, and the adapter tube and the transmission gear are allowed to rotate relative to each other;

[0011] In the retracted state, the tooth block extends axially and fits into the inter-tooth gap of the transmission teeth, and the adapter tube and the transmission teeth rotate synchronously.

[0012] As a further technical solution of the present invention, the tooth blocks are arranged in a plurality of groups, and the tooth blocks in the plurality of groups are evenly distributed along the circumferential direction.

[0013] As a further technical solution of the present invention, the adapter cylinder and the two transmission teeth are coaxially arranged with the output shaft.

[0014] As a further technical solution of the present invention, one end of the tooth block facing the transmission tooth matches the inter-tooth gap of the transmission tooth.

[0015] As a further technical solution of the present invention, a plurality of groups of tooth blocks cooperate to form an internal tooth ring meshing with the transmission teeth.

[0016] As a further technical solution of the present invention, two transmission teeth are rotatably arranged on two ends of the gear box respectively.

[0017] As a further technical solution of the present invention, a notch corresponding to the tooth block is provided on the end surface of the adapter tube, and the tooth block has an extension portion extending into the notch.

[0018] As a further technical solution of the present invention, the extension part is arranged in the notch by rotating the shaft, a torsion spring is connected between the extension part and the adapter tube, and the torsion spring drives the tooth block to be in the expanded state.

[0019] As a further technical solution of the present invention, it also includes a driving component, which is provided with two groups, corresponding to two transmission teeth respectively. The driving component includes an electromagnetic actuator and a dial. The electromagnetic actuator is installed in a gear box. The dial is slidably arranged on the transmission teeth. The dial is connected to the output end of the electromagnetic actuator. When the dial is energized, the dial can be driven to translate upward along the axis to drive the tooth block to retract.

[0020] As a further technical solution of the present invention, the electric drive unit includes an electric motor and a driving gear one, the output end of the electric motor is inserted into the gear box and connected to the driving gear one; the hydraulic drive unit includes a hydraulic pump and a driving gear two, the output end of the hydraulic pump is inserted into the gear box and connected to the driving gear two.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the present application, a rotatable tooth block is provided as a bridge connecting the adapter cylinder and the transmission teeth, and rotation is used to achieve a wrapping meshing method instead of the traditional meshing method, which not only increases the meshing area, but also the rotating opening and closing method can avoid the rigid collision caused by misalignment during meshing, effectively reducing the sense of frustration; and several tooth blocks can cooperate with each other to form a closed ring when they are retracted, thereby improving the integrity of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 The overall structural diagram of an electric and hydraulic dual-drive integrated power system is shown;

[0025] Figure 2 The schematic diagram of the structure of the electric drive part and the hydraulic drive part is shown;

[0026] Figure 3 A schematic diagram of the structure of the transmission assembly is shown;

[0027] Figure 4 It shows a schematic diagram of the structure of the gear block and the transmission gear in the retracted state;

[0028] Figure 5 shows a schematic diagram of the structure of the drive assembly;

[0029] Figure 6 A schematic diagram of the structure of the transmission connection between the adapter cylinder and two transmission teeth is shown;

[0030] Figure 7 A schematic structural diagram of the adapter tube is shown;

[0031] Figure 8 A schematic structural diagram of a gear block is shown.

[0032] Description of the drawings: 100, gearbox; 200, input assembly; 210, electric drive unit; 211, motor; 212, driving gear one; 220, hydraulic drive unit; 221, hydraulic pump; 222, driving gear two; 300, output shaft; 400, transmission assembly; 410, transmission gear; 420, adapter cylinder; 421, notch; 430, tooth block; 431, extension; 432, rotating shaft; 433, torsion spring; 500, drive assembly; 510, electromagnetic actuator; 520, dial. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Figure 1The overall structural diagram of an electric and hydraulic dual-drive integrated power system is shown; Figure 1 In the present application, an electric and hydraulic dual-drive integrated power system includes a gearbox 100, an input component 200 and an output shaft 300; wherein the output end of the input component 200 and the input end of the output shaft 300 are both placed in the gearbox 100 for power transmission; and because it is a hybrid power mode, in the present application, the input component 200 includes an electric drive part 210 and a hydraulic drive part 220, which are arranged side by side on one side of the gearbox 100 for providing power; wherein the electric drive part 210 is used to provide electric output to cope with fast start-up and high-speed application environments, and the gearbox 100 is used to provide hydraulic output to cope with high torque and low-speed application environments.

[0035] Figure 2 The schematic diagram of the structure of the electric drive part 210 and the liquid drive part 220 is shown; Figure 2 In the figure, the electric drive unit 210 includes an electric motor 211 and an active tooth 1 212, the output end of the electric motor 211 is inserted into the gear box 100 and connected to the active tooth 1 212; the liquid drive unit 220 includes a hydraulic pump 221 and an active tooth 222, the output end of the hydraulic pump 221 is inserted into the gear box 100 and connected to the active tooth 222; the electric drive unit 210 and the liquid drive unit 220 both use gears for output, the electric motor 211 and the hydraulic pump 221 can be directly or indirectly installed on the gear box 100, and the active tooth 1 212 and the active tooth 222 are staggered in the axial direction to avoid interference between the two; the electric motor 211 and the hydraulic pump 221 both use the existing technology, which is not protected by this application and will not be described in detail here.

[0036] Figure 3 shows a schematic structural diagram of the transmission assembly 400; Figure 4 It shows a schematic structural diagram of the tooth block 430 and the transmission tooth 410 in the retracted state; Figure 3In the embodiment, the transmission assembly 400 is arranged at the input end of the output shaft 300, so as to make the output end of the input assembly 200 connected to the input end of the output shaft 300 by transmission. The transmission assembly 400 includes two transmission teeth 410 rotatably connected to the output shaft 300 and a switching cylinder 420 connected to the output shaft 300. The switching cylinder 420 and the two transmission teeth 410 are coaxially arranged with the output shaft 300; that is, the two transmission teeth 410 can rotate relative to the output shaft 300 and will not rotate with the rotation of the output shaft 300, while the switching cylinder 420 is directly connected to the transmission teeth 410 and can rotate with the rotation of the output shaft 300; the two transmission teeth 410 are respectively connected to the driving teeth 212 and Active tooth 222; that is, the two transmission teeth 410 are respectively meshed with active tooth 1 212 and active tooth 222, and are used to transmit the output of active tooth 1 212 and active tooth 222, changing the traditional axial displacement disconnection method so that active tooth 1 212 and active tooth 222 are continuously connected to the transmission tooth 410, and there will be no axial mutual movement between the two, thereby avoiding radial impact; the adapter tube 420 is arranged between the two transmission teeth 410, and a plurality of groups of tooth blocks 430 are rotatably arranged on the end surface of the adapter tube 420 facing the transmission tooth 410, and the plurality of groups of tooth blocks 430 are evenly distributed along the circumferential direction, and the plurality of groups of tooth blocks 430 have at least an expanded state and a retracted state when rotating, In the expanded state, the tooth block 430 extends radially, and the adapter tube 420 and the transmission tooth 410 are allowed to rotate relative to each other; in the retracted state, the tooth block 430 extends axially and fits into the inter-tooth gap of the transmission tooth 410, and the adapter tube 420 and the transmission tooth 410 rotate synchronously; the tooth block 430 is rotated and retracted to form a bridge connecting the adapter tube 420 and the transmission tooth 410, so that the transmission tooth 410 and the adapter tube 420 can rotate synchronously at this time, thereby realizing the power transmission from the input component 200 to the output shaft 300, and the adapter tube 420 can be connected to one of the transmission teeth 410, or it can be connected to two transmission teeth 410 at the same time; in the present application, the method of using rotation to achieve wrapping meshing replaces the traditional meshing method, that is, The meshing area is increased, and the rotating opening and closing method can avoid the rigid collision caused by misalignment during meshing, effectively reducing the sense of frustration; the tooth block 430 facing the end of the transmission tooth 410 matches the inter-tooth gap of the transmission tooth 410; that is, when the tooth block 430 is inserted into the inter-tooth gap of the transmission tooth 410, the two can be highly matched to ensure stability during the transmission process; several groups of tooth blocks 430 cooperate to form an inner tooth ring meshed with the transmission tooth 410; that is, several tooth blocks 430 can cooperate with each other to form a closed ring body, thereby enhancing the integrity between each other; the two transmission teeth 410 are respectively rotatably arranged on the two ends of the gear box 100, which can further ensure the stability of the transmission tooth 410 during rotation.

[0037] Figure 6A schematic diagram showing the structure of the transmission connection between the adapter cylinder 420 and the two transmission teeth 410 is shown; Figure 7 A schematic structural diagram of the adapter tube 420 is shown; Figure 8 shows a schematic structural diagram of the tooth block 430; Figure 6-Figure 8 In the figure, a notch 421 corresponding to the tooth block 430 is provided on the end face of the adapter tube 420, and an extension portion 431 extending into the notch 421 is provided on the tooth block 430; the tooth block 430 is connected to the notch 421 through the extension portion 431, and the extension portion 431 can be hidden in the notch 421 so that two adjacent tooth blocks 430 are closely arranged; the extension portion 431 is rotatably arranged in the notch 421 through the rotating shaft 432, and a torsion spring 433 is connected between the extension portion 431 and the adapter tube 420, and the torsion spring 433 drives the tooth block 430 to be in an expanded state; that is, under normal conditions, driven by the elastic force of the torsion spring 433, the tooth block 430 will continue to maintain the expanded state so that the adapter tube 420 and the transmission tooth 410 are disconnected.

[0038] Figure 5 shows a schematic structural diagram of the drive assembly 500; Figure 5 In the embodiment, the driving assembly 500 is provided with two groups, corresponding to two transmission teeth 410 respectively. The driving assembly 500 includes an electromagnetic actuator 510 and a dial 520. The electromagnetic actuator 510 is installed in the gear box 100. The dial 520 is slidably arranged on the transmission tooth 410. The dial 520 is connected to the output end of the electromagnetic actuator 510. When the dial 520 is energized, the dial 520 can be driven to translate upward along the axis to drive the tooth block 430 to retract; when the dial 520 is energized, its output end extends and drives the dial 520 to move to squeeze the tooth block 430 to retract, so that the transmission teeth 410 and the adapter tube 420 are transmission-connected. In actual use, energizing one group of the electromagnetic actuators 510 can make the corresponding transmission teeth 410 and the adapter tube 420 transmission-connected. When both electromagnetic actuators 510 are energized, the two transmission teeth 410, the adapter tube 420 and the output shaft 300 form a rotating whole.

[0039] It should be noted that, in this embodiment, Figure 1-Figure 8 The inter-tooth structures shown are all straight tooth structures, but in some other embodiments, they also include but are not limited to helical teeth, herringbone teeth, conical teeth, etc.

[0040] It will be apparent to those skilled in the art that the 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 the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An electric and hydraulic dual-drive integrated power system, characterized in that: include: Gear box (100); An input component (200), the input component (200) comprising an electric drive unit (210) and a liquid drive unit (220), and output ends of the electric drive unit (210) and the liquid drive unit (220) are both disposed in the gear box (100); An output shaft (300), wherein an input end of the output shaft (300) is disposed in the gear box (100); and a transmission assembly (400), which is arranged in the gear box (100) and is used to make the output end of the input assembly (200) transmission-connected with the input end of the output shaft (300), the transmission assembly (400) comprising two transmission teeth (410) and a transfer cylinder (420) connected to the output shaft (300), the two transmission teeth (410) being transmission-connected to the electric drive part (210) and the liquid drive part (220) respectively, the transfer cylinder (420) being arranged between the two transmission teeth (410), and a tooth block (430) being rotatably arranged on the end surface of the transfer cylinder (420) facing the transmission teeth (410), and the tooth block (430) having at least an extended state and a retracted state when rotating; In the unfolded state, the tooth block (430) extends radially, and the adapter cylinder (420) and the transmission tooth (410) are allowed to rotate relative to each other; In the retracted state, the tooth block (430) extends axially and fits into the inter-tooth gap of the transmission tooth (410), and the adapter cylinder (420) and the transmission tooth (410) rotate synchronously.

2. The electric and hydraulic dual-drive integrated power system according to claim 1, characterized in that: The tooth blocks (430) are arranged in a plurality of groups, and the plurality of groups of tooth blocks (430) are evenly distributed in the circumferential direction.

3. The electric and hydraulic dual-drive integrated power system according to claim 1, characterized in that: The adapter cylinder (420) and the two transmission teeth (410) are coaxially arranged with the output shaft (300).

4. The electric and hydraulic dual-drive integrated power system according to claim 2, characterized in that: One end of the tooth block (430) facing the transmission tooth (410) matches the inter-tooth gap of the transmission tooth (410).

5. The electric and hydraulic dual-drive integrated power system according to claim 4, characterized in that: In the folded state, a plurality of groups of tooth blocks (430) cooperate to form an inner tooth ring that meshes with the transmission teeth (410).

6. The electric and hydraulic dual-drive integrated power system according to claim 5, characterized in that: The two transmission teeth (410) are rotatably disposed on two ends of the gear box (100) respectively.

7. An electric and hydraulic dual-drive integrated power system according to any one of claims 1 to 6, characterized in that: The end surface of the adapter tube (420) is provided with a notch (421) corresponding to the tooth block (430), and the tooth block (430) is provided with an extension portion (431) extending into the notch (421).

8. The electric and hydraulic dual-drive integrated power system according to claim 7, characterized in that: The extension part (431) is rotatably arranged in the notch (421) via a rotating shaft (432); a torsion spring (433) is connected between the extension part (431) and the adapter tube (420); and the torsion spring (433) drives the tooth block (430) to be in the expanded state.

9. The electric and hydraulic dual-drive integrated power system according to claim 7, characterized in that: The invention also comprises a driving assembly (500), wherein the driving assembly (500) is provided with two groups, respectively corresponding to two transmission teeth (410), and the driving assembly (500) comprises an electromagnetic actuator (510) and a dial (520), wherein the electromagnetic actuator (510) is installed in the gear box (100), and the dial (520) is slidably arranged on the transmission teeth (410), and the dial (520) is connected to the output end of the electromagnetic actuator (510), and when the dial (520) is powered on, the dial (520) can be driven to translate upward along the axis to drive the tooth block (430) to retract.

10. The electric and hydraulic dual-drive integrated power system according to claim 7, characterized in that: The electric drive unit (210) comprises an electric motor (211) and a first active gear (212), wherein the output end of the electric motor (211) is inserted into the gear box (100) and connected to the first active gear (212); the hydraulic drive unit (220) comprises a hydraulic pump (221) and a second active gear (222), wherein the output end of the hydraulic pump (221) is inserted into the gear box (100) and connected to the second active gear (222).

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