A dual input transmission

Abstract

The utility model belongs to mechanical drive technical field provides a kind of double input transmission device, including input shaft, first gear is set on the input shaft and input shaft two ends are connected power source respectively;Synchronizer is set on the input shaft, the synchronizer side is provided with the yoke of pushing the synchronizer and first gear power connection;Output shaft is connected with the first gear transmission. By the above technical solution, the input shaft of the utility model is connected with two power sources simultaneously, the structure is compact, double power source is efficiently compatible, improves system redundancy;The yoke can quickly interrupt power, enhances the flexibility of transmission device.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission, specifically to a dual-input transmission device. Background Technology

[0002] Transmission systems are used to transmit motion and force in mechanical equipment. Common types of mechanical transmissions include gear drives, worm gear drives, belt drives, chain drives, and wheel trains, etc.

[0003] In the field of special vehicles, such as armored vehicles and engineering vehicles, highly reliable power systems are required to cope with different road conditions. However, existing special vehicle transmission devices mostly use a single engine input, which is incompatible with electric motor-assisted drive, making it difficult to switch between them and resulting in insufficient system power redundancy. Furthermore, power interruption requires the use of a clutch, which has a slow response and high wear. Utility Model Content

[0004] In view of the deficiencies in the prior art, this utility model provides a dual-input transmission device to solve the technical problem that the transmission devices of special vehicles in the prior art cannot be compatible with multiple power sources.

[0005] This utility model provides a dual-input transmission device, which includes an input shaft, on which a first gear is sleeved, and at both ends of the input shaft are respectively connected to a power source.

[0006] A synchronizer is mounted on the input shaft, and a shift fork is provided on one side of the synchronizer to drive the synchronizer to power the first gear;

[0007] The output shaft is connected to the first gear drive.

[0008] As can be seen from the above technical solution, the input shaft of this utility model is connected to two power sources at the same time, which is compact in structure, highly compatible with dual power sources, and improves system redundancy; the shift fork can quickly interrupt power, enhancing the flexibility of the transmission device.

[0009] Furthermore, it includes a transmission housing, in which both the input shaft and the output shaft are rotatably located;

[0010] An oil pump is installed inside the transmission box. The oil inlet of the oil pump is connected to the bottom of the transmission box, and the oil outlet of the oil pump is connected to the synchronizer and the gear meshing point through an oil circuit.

[0011] The power shaft of the oil pump extends out of the oil pump and is equipped with an input gear, and the first gear is connected to the input gear in a transmission manner.

[0012] The beneficial effects of adopting the above-mentioned further solution are: after the input shaft inputs power, it drives the oil pump to start, and the oil pump pumps oil to the synchronizer and each gear meshing point, providing active lubrication under all working conditions and ensuring reliability in extreme environments.

[0013] Furthermore, it includes an intermediate shaft, which is rotatably located within the transmission box. A second gear and a third gear are fixedly mounted on the intermediate shaft, and a fourth gear is fixedly mounted on the output shaft. The third gear meshes with the fourth gear.

[0014] A fifth gear is rotatably mounted inside the transmission box. The first gear meshes with the second gear, the second gear meshes with the fifth gear, and the fifth gear meshes with the input gear.

[0015] The beneficial effect of adopting the above-mentioned further scheme is that the second and third gears change the output transmission ratio and increase the output shaft torque.

[0016] Furthermore, a cylinder is installed inside the transmission box, and the moving end of the cylinder is fixedly connected to the shift fork.

[0017] The beneficial effects of adopting the above-mentioned further solution are: the movement of the shift fork is driven by a cylinder, automated control is achieved, and power can be quickly interrupted.

[0018] Furthermore, the input shaft has an external spline at one end and an internal spline at the other end.

[0019] The advantages of adopting the above-mentioned further solutions are: the spline connection has high transmission accuracy, strong torque transmission capability, and is easy to assemble and disassemble. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the description of the specific embodiments or prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0022] Figure 2 This is a schematic diagram of the oil pump of this utility model.

[0023] Figure label:

[0024] 1. Input shaft; 2. First gear; 3. Synchronizer; 4. Shift fork; 5. Output shaft; 6. Intermediate shaft; 7. Second gear; 8. Third gear; 9. Fourth gear; 10. Transmission box; 11. Oil pump; 12. Fifth gear; 13. Input gear; 14. Cylinder; 15. External spline; 16. Internal spline. Detailed Implementation

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0026] Example 1

[0027] like Figure 1 As shown, a dual-input transmission device includes an input shaft 1, on which a first gear 2 is sleeved, and both ends of the input shaft 1 are respectively connected to a power source;

[0028] Synchronizer 3 is mounted on the input shaft 1, and a shift fork 4 is provided on one side of the synchronizer 3 to drive the synchronizer 3 to power the first gear 2;

[0029] The output shaft 5 is connected to the first gear 2 via a transmission.

[0030] In this embodiment, the two ends of the input shaft 1 are connected to the main shaft power of the motor and the engine, respectively. The engine output is the main output, and the motor output is the auxiliary output. Both can provide power to the input shaft 1 at the same time.

[0031] Synchronizer 3 includes a spline hub, a coupling sleeve, and a locking ring, etc. The spline hub is fixed on the input shaft 1, and the coupling sleeve and locking ring are sleeved on the outside of the spline hub and can slide along the axial direction of the input shaft 1.

[0032] In the initial state, the engine and motor drive the input shaft 1 to rotate, the first gear 2 is not connected to the input shaft 1, and the input shaft 1 remains idle until the shift fork 4 pushes the engagement sleeve and locking ring to slide, the locking ring abuts against the first gear 2, and after the engagement sleeve slides and meshes with the first gear 2, the first gear 2 establishes a connection with the input shaft 1 and rotates with the input shaft 1. Then the first gear 2 drives the output shaft 5 to move and output power.

[0033] When it is necessary to cut off the power output, the shift fork 4 moves away from the first gear 2, driving the synchronizer 3 to reset, and the input shaft 1 is disconnected from the first gear 2.

[0034] In this embodiment, the input shaft 1 is connected to two power sources simultaneously, resulting in a compact structure, efficient compatibility between the two power sources, and improved system redundancy. Conventional power interruption relies on a clutch, which has a slow response and high wear. The shift fork 4 in this solution can quickly interrupt power, enhancing the flexibility of the transmission device.

[0035] Example 2

[0036] like Figures 1 to 2 As shown, preferably, based on embodiment 1, it includes a transmission box 10, and both the input shaft 1 and the output shaft 5 are rotatably located within the transmission box 10;

[0037] The transmission box 10 is equipped with an oil pump 11. The oil inlet of the oil pump 11 is connected to the bottom of the transmission box 10, and the oil outlet of the oil pump 11 is connected to the synchronizer 3 and the gear meshing point through an oil circuit.

[0038] The power shaft of the oil pump 11 extends out of the oil pump 11 and is provided with an input gear 13, and the first gear 2 is connected to the input gear 13 in a transmission connection.

[0039] like Figures 1 to 2 As shown, it includes an intermediate shaft 6, which is rotatably located within the transmission box 10. A second gear 7 and a third gear 8 are fixedly mounted on the intermediate shaft 6, and a fourth gear 9 is fixedly mounted on the output shaft 5. The third gear 8 meshes with the fourth gear 9.

[0040] A fifth gear 12 is rotatably disposed inside the transmission box 10. The first gear 2 meshes with the second gear 7, the second gear 7 meshes with the fifth gear 12, and the fifth gear 12 meshes with the input gear 13.

[0041] like Figure 1 As shown, a cylinder 14 is provided inside the transmission box 10, and the moving end of the cylinder 14 is fixedly connected to the shift fork 4.

[0042] In this embodiment, the extension and retraction direction of the cylinder 14 is coaxial with the input shaft 1. The cylinder 14 pushes the shift fork 4 to move, and the shift fork 4 drives the synchronizer 3 to slide. After the synchronizer 3 establishes a connection with the first gear 2, when the engine and motor drive the input shaft 1 to rotate, the first gear 2 follows the input shaft 1 to rotate.

[0043] The first gear 2 drives the second gear 7 to rotate, the second gear 7 drives the intermediate shaft 6 and the third gear 8 to rotate, and the fourth gear 9 is fixedly installed on the output shaft 5. The third gear 8 meshes with the fourth gear 9, and the fourth gear 9 drives the output shaft 5 to output power.

[0044] Meanwhile, a fifth gear 12 is also installed inside the transmission box 10. When the second gear 7 rotates, it meshes with the fifth gear 12. The fifth gear 12 meshes with the input gear 13. The input gear 13 drives the power shaft of the oil pump 11 to rotate. The oil pump 11 pumps oil, and the oil enters the synchronizer 3, each bearing and each gear meshing point through the oil circuit for lubrication. After lubrication, the oil drips to the bottom of the transmission box 10, and the oil pump 11 draws the oil up again to achieve reciprocating circulation lubrication and active lubrication under all working conditions.

[0045] Example 3

[0046] like Figure 1 As shown, preferably, based on Embodiment 1, one end of the input shaft 1 is provided with an external spline 15, and the other end is provided with an internal spline 16.

[0047] In this embodiment, the inner spline 16 end of the input shaft 1 is connected to the engine main shaft, and the outer spline 15 end of the input shaft 1 is connected to the motor main shaft. The spline connection has high transmission accuracy, strong torque transmission capability, and is easy to assemble and disassemble.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A dual-input transmission device, characterized in that, It includes an input shaft (1), on which a first gear (2) is fitted and the two ends of the input shaft (1) are respectively connected to a power source; Synchronizer (3) is mounted on the input shaft (1), and a shift fork (4) is provided on one side of the synchronizer (3) to drive the synchronizer (3) to power the first gear (2). The output shaft (5) is connected to the first gear (2) via a transmission.

2. The dual-input transmission device according to claim 1, characterized in that, It includes a transmission housing (10), and both the input shaft (1) and the output shaft (5) are rotatably located within the transmission housing (10); An oil pump (11) is installed inside the transmission box (10). The oil inlet of the oil pump (11) is connected to the bottom of the transmission box (10), and the oil outlet of the oil pump (11) is connected to the synchronizer (3) and the gear meshing point through the oil circuit. The power shaft of the oil pump (11) extends out of the oil pump (11) and is provided with an input gear (13), and the first gear (2) is connected to the input gear (13) in a transmission connection.

3. A dual-input transmission device according to claim 2, characterized in that, It includes an intermediate shaft (6), which is rotatably located inside the transmission box (10). A second gear (7) and a third gear (8) are fixedly mounted on the intermediate shaft (6), and a fourth gear (9) is fixedly mounted on the output shaft (5). The third gear (8) meshes with the fourth gear (9). The transmission box (10) is rotatably equipped with a fifth gear (12), the first gear (2) meshes with the second gear (7), the second gear (7) meshes with the fifth gear (12), and the fifth gear (12) meshes with the input gear (13).

4. A dual-input transmission device according to claim 2, characterized in that, A cylinder (14) is installed inside the transmission box (10), and the moving end of the cylinder (14) is fixedly connected to the shift fork (4).

5. A dual-input transmission device according to any one of claims 1 to 4, characterized in that, The input shaft (1) has an external spline (15) at one end and an internal spline (16) at the other end.

Images