Large-speed-ratio multi-gear automatic gear shifting gearbox

Abstract

The invention belongs to the technical field of gear boxes, and discloses a large-speed-ratio multi-gear automatic gear shifting gear box which comprises a shell component, an input component and an output component are arranged in the shell component, and the output component comprises a first output part and a second output part; the input component is located between the first output part and the second output part, a transmission ratio adjusting component is further arranged in the shell component, and the transmission ratio adjusting component is located between the second output part and the input component. The device is long in service life and has the functions of remotely controlling the speed ratio and coaxially outputting the small speed ratio and the large speed ratio at the same time, the first gear shifter and the second gear shifter work, and therefore the first output shaft and the second output shaft can output three different speed ratios, and the use range of the device is widened.

Description

Technical Field

[0001] The present invention belongs to the technical field of gearboxes, and particularly relates to a large speed ratio multi-gear automatic shifting gearbox. Background Art

[0002] When conducting reliability experiments on automotive drive axles, it is necessary to perform experiments through an automotive drive axle reliability test bench. During the experiment, a gearbox is required. The load test bench in the automotive drive axle reliability test bench needs to be used in conjunction with the gearbox. Existing large speed ratio multi-gear automatic shifting gearboxes are multi-axis output and variable speed ratio gearboxes, which have the disadvantages of high speed, large torque, and large impact. Moreover, the existing technology cannot achieve coaxial output of small speed ratio and large speed ratio under the premise of a small gearbox space, and the speed ratio does not require remote control. Therefore, a large speed ratio multi-gear automatic shifting gearbox is proposed to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a large speed ratio multi-gear automatic shifting gearbox to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A large speed ratio multi-gear automatic shifting gearbox, including a housing component. An input component and an output component are arranged inside the housing component, and the output component includes a first output part and a second output part;

[0005] The input component is located between the first output part and the second output part. A transmission ratio adjustment component is also arranged inside the housing component. The transmission ratio adjustment component is located between the second output part and the input component, and the transmission ratio adjustment component includes a first transmission shaft and a second transmission shaft rotatably connected inside the housing component;

[0006] A sixth gear, a seventh gear, and a tenth gear are coaxially arranged on the first transmission shaft. The sixth gear is located between the seventh gear and the tenth gear, and the diameters of the seventh gear, the sixth gear, and the tenth gear increase in sequence;

[0007] A fourth gear, a fifth gear, and a ninth gear are coaxially arranged on the second transmission shaft. The fifth gear is located between the fourth gear and the ninth gear, and the diameters of the ninth gear, the fourth gear, and the fifth gear increase in sequence. A second shifter for shifting gears is arranged on the second transmission shaft. By shifting gears through the second shifter, the fifth gear is engaged with the sixth gear or the ninth gear is engaged with the tenth gear, or the fifth gear is separated from the sixth gear and the ninth gear is separated from the tenth gear;

[0008] The seventh gear is engaged with the second output part, and the fourth gear is engaged with the input component;

[0009] A first shifter for shifting gears is provided on the first output part. Shifting gears through the first shifter causes the first output part to engage or disengage from the input member.

[0010] Preferably, the input member includes a third gear, a first gear, and an input shaft arranged coaxially. The third gear and the first gear are fixedly connected to the input shaft in an outwardly protruding manner, and the diameter of the third gear is larger than that of the first gear. The third gear meshes with the fourth gear, and the first gear meshes with the first output part.

[0011] Preferably, the first output part includes a first output shaft and a second gear arranged coaxially. The second gear is fixedly connected to the first output shaft in an outwardly protruding manner, and the diameter of the first output shaft is larger than that of the first gear. The first shifter is arranged on the first output shaft.

[0012] Preferably, the second output part includes a second output shaft and an eighth gear arranged coaxially. The eighth gear is fixedly connected to the second output shaft in an outwardly protruding manner. The eighth gear meshes with the seventh gear, and the diameter of the eighth gear is larger than that of the seventh gear.

[0013] Preferably, the housing member includes a bottom shell and a top shell that are detachably connected. The bottom shell is located below the top shell, and a hollow inner cavity is formed between the interiors of the bottom shell and the top shell.

[0014] Preferably, the first shifter includes a first electric telescopic rod, and a first shift lever is rotatably connected to the telescopic end of the first electric telescopic rod.

[0015] Preferably, the second shifter includes a second electric telescopic rod, and a second shift lever is rotatably connected to the telescopic end of the second electric telescopic rod.

[0016] Preferably, a sealing gasket is provided between the bottom shell and the top shell.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The present invention can also work for a long time under harsh working conditions with high speed, large torque, and large impact. The device has a long service life, and at the same time has the functions of remotely controllable speed ratio and coaxial output of small and large speed ratios. By the operation of the first shifter and the second shifter, the first output shaft and the second output shaft can output three different speed ratios, improving the application range of the device. Description of the Drawings

[0019] Figure 1 is an external view of the present invention;

[0020] Figure 2 is Figure 1 a cross-sectional view taken along A-A in

[0021] Figure 3 Schematic diagram of the installation positions of the first and second shift devices of the present invention;

[0022] In the figure: 1, input shaft; 11, first gear; 12, second gear; 2, first output shaft; 21, third gear; 22, fourth gear; 23, fifth gear; 24, sixth gear; 25, seventh gear; 26, eighth gear; 3, second output shaft; 31, ninth gear; 32, tenth gear; 4, first shift device; 41, first electric telescopic rod; 42, first shift lever; 5, second shift device; 51, second electric telescopic rod; 52, second shift lever; 6, bottom case; 7, inner cavity; 8, top case; 9, first transmission shaft; 10, second transmission shaft. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 - 3 As shown, the present invention provides the following technical solutions:

[0025] A large speed ratio multi-gear automatic shift gearbox, comprising a housing member, an input member and an output member are arranged inside the housing member, and the output member includes a first output part and a second output part;

[0026] The input member is between the first output part and the second output part, and a transmission ratio adjusting member is further arranged inside the housing member. The transmission ratio adjusting member is between the second output part and the input member, and the transmission ratio adjusting member includes a first transmission shaft 9 and a second transmission shaft 10 rotatably connected inside the housing member;

[0027] A sixth gear 24, a seventh gear 25 and a tenth gear 32 are coaxially arranged on the first transmission shaft 9. The sixth gear 24 is between the seventh gear 25 and the tenth gear 32, and the diameters of the seventh gear 25, the sixth gear 24 and the tenth gear 32 increase in sequence;

[0028] A fourth gear 22, a fifth gear 23 and a ninth gear 31 are coaxially arranged on a second transmission shaft 10. The fifth gear 23 is located between the fourth gear 22 and the ninth gear 31, and the diameters of the ninth gear 31, the fourth gear 22 and the fifth gear 23 increase in sequence. A second shifter 5 for shifting gears is arranged on the second transmission shaft 10. By shifting gears with the second shifter 5, the fifth gear 23 is engaged with a sixth gear 24 or the ninth gear 31 is engaged with a tenth gear 32, or the fifth gear 23 is disengaged from the sixth gear 24 and the ninth gear 31 is disengaged from the tenth gear 32;

[0029] A seventh gear 25 is engaged with a second output part, and the fourth gear 22 is engaged with an input member;

[0030] A first shifter 4 for shifting gears is arranged on a first output part. By shifting gears with the first shifter 4, the first output part is engaged with or disengaged from the input member.

[0031] By the above technical solution, when the device is in use, in order to achieve coaxial output with a small speed ratio and a large speed ratio on the premise of a small space of the housing member, a driving member (such as an engine) is connected to the input member, and the following speed ratios are provided:

[0032] For the first speed ratio, the driving member drives the input member to rotate. By shifting gears with the first shifter 4, the first output part is engaged with the input member. The input member drives the first output part to rotate, and the first output part outputs to achieve the first speed;

[0033] For the second speed ratio, the driving member drives the input member to rotate. By shifting gears with the first shifter 4, the first output part is disengaged from the input member. The input member is engaged with the fourth gear 22, the fifth gear 23 is engaged with the sixth gear 24, and the seventh gear 25 is engaged with the second output part. The input member drives the fourth gear 22 to rotate, the fourth gear 22 drives a first transmission shaft 9 to rotate, the first transmission shaft 9 drives the fifth gear 23 to rotate, the fifth gear 23 drives the sixth gear 24 to rotate, and then the sixth gear 24 drives the second transmission shaft 10 to rotate, the second transmission shaft 10 drives the seventh gear 25 to rotate, and then drives the second output part to output to achieve the second speed;

[0034] The third speed ratio: The driving member drives the input member to rotate. Shift gears through the first shifter 4 to separate the first output part from the input member. The input member meshes with the fourth gear 22, the fifth gear 23 meshes with the sixth gear 24, and the seventh gear 25 meshes with the second output part. Drive the fourth gear 22 to rotate through the input member, make the fourth gear 22 drive the first transmission shaft 9 to rotate, let the first transmission shaft 9 drive the fifth gear 23 to rotate, make the fifth gear 23 drive the sixth gear 24 to rotate, and then let the sixth gear 24 drive the second transmission shaft 10 to rotate, make the second transmission shaft 10 drive the seventh gear 25 to rotate, and then drive the second output part to output, realizing the second speed.

[0035] The driving member drives the input member to rotate. Shift gears through the first shifter 4 to separate the first output part from the input member. The input member meshes with the fourth gear 22, the ninth gear 31 meshes with the tenth gear 32, and the seventh gear 25 meshes with the second output part. Drive the fourth gear 22 to rotate through the input member, make the fourth gear 22 drive the first transmission shaft 9 to rotate, let the first transmission shaft 9 drive the ninth gear 31 to rotate, make the ninth gear 31 drive the tenth gear 32 to rotate, and then let the tenth gear 32 drive the second transmission shaft 10 to rotate, make the second transmission shaft 10 drive the seventh gear 25 to rotate, and then drive the second output part to output, realizing the third speed.

[0036] Regarding how the above input member works, as Figure 2 shown, the input member includes a third gear 21, a first gear 11 and an input shaft 1 arranged coaxially. The third gear 21 and the first gear 11 are fixedly connected to the input shaft 1 in an outward convex manner, and the diameter of the third gear 21 is larger than that of the first gear 11, and the third gear 21 meshes with the fourth gear 22, and the first gear 11 meshes with the first output part.

[0037] In this embodiment, connect the driving member to the input shaft 1, and through the rotation of the input shaft 1, the first gear 11 drives the first output part to rotate, or the third gear 21 drives the fourth gear 22 to rotate.

[0038] Specifically, in one embodiment, regarding the above first output part, as Figure 2 shown, the first output part includes a first output shaft 2 and a second gear 12 arranged coaxially. The second gear 12 is fixedly connected to the first output shaft 2 in an outward convex manner, and the diameter of the first output shaft 2 is larger than that of the first gear 11, and the first shifter 4 is arranged on the first output shaft 2.

[0039] In this embodiment, through the operation of the first shifter 4, the second gear 12 meshes with or separates from the first gear 11. After the second gear 12 meshes with the first gear 11, drive the second gear 12 to rotate through the first gear 11, thereby driving the first output shaft 2 to rotate.

[0040] Specifically, in one embodiment, regarding the above-mentioned second output part, as Figure 2 shown, the second output part includes a second output shaft 3 and an eighth gear 26 arranged coaxially. The eighth gear 26 is fixedly connected to the second output shaft 3 in an outward convex manner. The eighth gear 26 meshes with the seventh gear 25, and the diameter of the eighth gear 26 is larger than that of the seventh gear 25.

[0041] In this embodiment, when the seventh gear 25 rotates, the seventh gear 25 drives the eighth gear 26 to rotate, thereby driving the second output shaft 3 to rotate.

[0042] In addition, in the present invention, regarding the above-mentioned housing member, as Figures 1 - 2 shown, the housing member includes a bottom case 6 and a top case 8 that are detachably connected. The bottom case 6 is located below the top case 8, and a hollow inner cavity 7 is formed between the interiors of the bottom case 6 and the top case 8.

[0043] Specifically, in one embodiment, regarding the above-mentioned first shifter 4:

[0044] As Figure 3 shown, the first shifter 4 includes a first electric telescopic rod 41. The telescopic end of the first electric telescopic rod 41 is rotatably connected to a first shift lever 42. When it is necessary to adjust the engagement or separation of the second gear 12 and the first gear 11, the first electric telescopic rod 41 works, so that the first electric telescopic rod 41 drives the first shift lever 42 to move, thereby enabling the second gear 12 and the first gear 11 to engage or separate.

[0045] Specifically, in one embodiment, regarding the above-mentioned second shifter 5:

[0046] As Figure 3 shown, the second shifter 5 includes a second electric telescopic rod 51. The telescopic end of the second electric telescopic rod 51 is rotatably connected to a second shift lever 52. When it is necessary to adjust the engagement of the fifth gear 23 and the sixth gear 24, the engagement or separation of the ninth gear 31 and the tenth gear 32, and the separation of the fifth gear 23 and the sixth gear 24, and the separation of the ninth gear 31 and the tenth gear 32, the second electric telescopic rod 51 works, so that the second electric telescopic rod 51 drives the second shift lever 52 to move, thereby enabling the fifth gear 23 and the sixth gear 24 to engage, the ninth gear 31 and the tenth gear 32 to separate, or the fifth gear 23 and the sixth gear 24 to separate, the ninth gear 31 and the tenth gear 32 to engage, and the fifth gear 23 and the sixth gear 24 to separate, and the ninth gear 31 and the tenth gear 32 to separate.

[0047] In addition, in the present invention, when the device is in use, in order to increase the sealing performance of the device and reduce the leakage probability of the lubricating oil, a sealing gasket is provided between the bottom case 6 and the top case 8.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high speed ratio multi-speed automatic shifting gearbox, characterized in that: The invention comprises a housing component, wherein an input component and an output component are arranged inside the housing component, and the output component comprises a first output part and a second output part; The input member is located between the first output part and the second output part, and a transmission ratio adjustment member is also provided inside the housing member. The transmission ratio adjustment member is located between the second output part and the input member, and the transmission ratio adjustment member includes a first transmission shaft (9) and a second transmission shaft (10) rotatably connected inside the housing member; A sixth gear (24), a seventh gear (25) and a tenth gear (32) are coaxially arranged on the first transmission shaft (9), the sixth gear (24) is located between the seventh gear (25) and the tenth gear (32), and the diameters of the seventh gear (25), the sixth gear (24) and the tenth gear (32) are increased in sequence; A fourth gear (22), a fifth gear (23) and a ninth gear (31) are coaxially arranged on the second transmission shaft (10), the fifth gear (23) is located between the fourth gear (22) and the ninth gear (31), and the diameters of the ninth gear (31), the fourth gear (22) and the fifth gear (23) are successively enlarged, and a second shifter (5) for shifting gears is arranged on the second transmission shaft (10), and the fifth gear (23) is meshed with the sixth gear (24) or the ninth gear (31) is meshed with the tenth gear (32) by shifting gears through the second shifter (5), or the fifth gear (23) is separated from the sixth gear (24) and the ninth gear (31) is separated from the tenth gear (32); The seventh gear (25) is meshed with the second output portion, and the fourth gear (22) is meshed with the input member; The first output part is provided with a first shifter (4) for shifting gears, and the first output part is engaged with or separated from the input member by shifting gears through the first shifter (4).

2. The high speed ratio multi-speed automatic shifting gearbox according to claim 1, characterized in that: The input member comprises a third gear (21), a first gear (11) and an input shaft (1) which are coaxially arranged; the third gear (21) and the first gear (11) are externally protruding and fixedly connected to the input shaft (1); the diameter of the third gear (21) is larger than the diameter of the first gear (11); the third gear (21) is meshed with a fourth gear (22); and the first gear (11) is meshed with a first output part.

3. The high speed ratio multi-speed automatic shifting gearbox according to claim 2, characterized in that: The first output part comprises a first output shaft (2) and a second gear (12) which are coaxially arranged, the second gear (12) being externally protruding and fixedly connected to the first output shaft (2), and the diameter of the first output shaft (2) is greater than the diameter of the first gear (11), and the first gear shifter (4) is arranged on the first output shaft (2).

4. The high speed ratio multi-speed automatic shifting gearbox according to claim 3, characterized in that: The second output part comprises a coaxially arranged second output shaft (3) and an eighth gear (26); the eighth gear (26) is externally protruding and fixedly connected to the second output shaft (3); the eighth gear (26) is meshed with the seventh gear (25); and the diameter of the eighth gear (26) is greater than the diameter of the seventh gear (25).

5. The high speed ratio multi-speed automatic shifting gearbox according to claim 1, characterized in that: The shell component comprises a bottom shell (6) and a top shell (8) which are detachably connected, the bottom shell (6) is located below the top shell (8), and a hollow inner cavity (7) is formed between the bottom shell (6) and the top shell (8).

6. The high speed ratio multi-speed automatic shifting gearbox according to claim 1, characterized in that: The first shifter (4) comprises a first electric telescopic rod (41), the telescopic end of the first electric telescopic rod (41) being rotatably connected to a first shifting rod (42).

7. The high speed ratio multi-speed automatic shifting gearbox according to claim 1, characterized in that: The second shifter (5) comprises a second electric telescopic rod (51), the telescopic end of the second electric telescopic rod (51) being rotatably connected to a second shifting rod (52).

8. The high-speed ratio multi-speed automatic shifting gearbox according to claim 5, characterized in that: A sealing cylinder gasket is provided between the bottom shell (6) and the top shell (8).

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