Multi-gear harvester gearbox structure

Abstract

The utility model belongs to the technical field of gearboxes, and particularly discloses a multi-gear harvester gearbox structure which comprises a gearbox body and a shaft assembly arranged in the gearbox body. The shaft assembly comprises a first shaft assembly, a second shaft assembly, a third shaft assembly, a fourth shaft assembly, a fifth shaft assembly, a sixth shaft assembly, a seventh shaft assembly and an eighth shaft assembly, the seventh shaft assembly is arranged on the side edge of the fourth shaft assembly, and the eighth shaft assembly is arranged below the seventh shaft assembly; the eighth shaft assembly is used for being connected with a rear axle, the sixth shaft assembly is used for being connected with a rim, power is transmitted to the second shaft assembly through the first shaft assembly, the second shaft assembly transmits the power to the third shaft assembly, the third shaft assembly transmits the power to the fourth shaft assembly, and the fourth shaft assembly transmits the power to the fifth shaft assembly and the seventh shaft assembly. The fifth shaft assembly is used for driving a rim through the sixth shaft assembly, and the seventh shaft assembly can transmit the power to the power output end of the rear axle through the eighth shaft assembly in a transmission mode.

Description

Technical Field

[0001] The utility model relates to the technical field of gearboxes, in particular to a gearbox structure for a multi-gear harvester. Background Art

[0002] The transmission, also known as the gearbox, is a mechanism used to change the speed and torque from the engine. It can change the transmission ratio of the output shaft and the input shaft in a fixed or divided manner. The transmission consists of a speed transmission mechanism and an operating mechanism. Some cars also have a power output mechanism. Most transmission mechanisms use ordinary gear transmissions, and some use planetary gear transmissions. Ordinary gear transmission speed change mechanisms generally use sliding gears and synchronizers.

[0003] The rear axle refers to the rear drive shaft component of the vehicle power transmission. It consists of two half-bridges, which can implement half-bridge differential movement. At the same time, it is also a device used to support the wheels and connect the rear wheels. Most of the existing harvester gearboxes do not have a structure to drive the rear axle. The road conditions and farmland conditions of some roads are poor. If the harvester gets stuck, the power cannot be transmitted to the rear axle, which will greatly reduce the harvester's ability to escape, making it difficult to meet the use requirements. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-gear harvester gearbox structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-gear harvester gearbox structure, including a gearbox body and a shaft assembly arranged inside the gearbox body, the shaft assembly including a first shaft assembly, a second shaft assembly, a third shaft assembly, a fourth shaft assembly, a fifth shaft assembly, a sixth shaft assembly, a seventh shaft assembly and an eighth shaft assembly, the first shaft assembly, the second shaft assembly, the third shaft assembly, the fourth shaft assembly, the fifth shaft assembly and the sixth shaft assembly are arranged in sequence from bottom to top in the box body, the seventh shaft assembly is arranged on the side of the fourth shaft assembly, and the eighth shaft assembly is arranged below the seventh shaft assembly.

[0006] Preferably, the first shaft assembly is provided with a first gear, the second shaft assembly is provided with a second gear meshing with the first gear, the third shaft assembly is provided with a third main gear and a third slave gear, the third main gear meshes with the second gear, the fourth shaft assembly is provided with a fourth main gear, a fourth slave gear and a fourth connecting gear, the fourth main gear and the third slave gear mesh with each other, the fifth shaft assembly is provided with a fifth main gear and a fifth slave gear, the fifth main gear and the fourth slave gear mesh with each other, the sixth shaft assembly is provided with a sixth gear, the sixth gear and the fifth slave gear mesh with each other, the seventh shaft assembly is provided with a seventh bevel gear, a seventh connecting gear and a fork shaft connecting piece connected to the seventh connecting gear, the seventh connecting gear meshes with the fourth connecting gear, the eighth shaft assembly is provided with an eighth bevel gear meshing with the seventh bevel gear, and a rear axle power output end is provided at the end of the eighth shaft assembly.

[0007] The eighth shaft assembly is used to connect the rear axle, the sixth shaft assembly is used to connect the wheel rim, the power is transmitted to the second shaft assembly through the first shaft assembly, the second shaft assembly transmits the power to the third shaft assembly, the third shaft assembly transmits the power to the fourth shaft assembly, the fourth shaft assembly transmits the power to the fifth shaft assembly and the seventh shaft assembly respectively, the fifth shaft assembly is used to drive the wheel rim through the sixth shaft assembly, the seventh shaft assembly can transmit the power to the rear axle power output end through the eighth shaft assembly, and thus the power can be transmitted to the rear axle.

[0008] Preferably, three third slave gears and three fourth master gears are respectively provided, and the three third slave gears are respectively meshed with three corresponding fourth master gears.

[0009] Preferably, the first shaft assembly is connected to the power input end of the gearbox, and by connecting the power input end to an external driving device, the first shaft assembly can be used to transmit power to the first power output end and the second power output end.

[0010] Preferably, a four-wheel drive fork shaft that cooperates with each other is arranged below the fork shaft connecting member, and the four-wheel drive fork shaft is arranged to drive the fork shaft connecting member, thereby driving the seventh connecting gear to move away from the fourth connecting gear, thereby canceling the rear axle transmission, thereby realizing two modes of rear axle non-driving and rear axle driving. Since the use of the four-wheel drive fork shaft belongs to the existing mature technology, it will not be described in detail here.

[0011] Preferably, the first bevel gear and the second bevel gear are both spiral bevel gears. The spiral bevel gears have high transmission efficiency, stable transmission ratio, high load-bearing capacity, and increased service life.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model respectively connects the rear axle and the wheel rim by setting an eighth shaft assembly and a sixth shaft assembly. When in use, power is transmitted to the fourth shaft assembly through the first shaft assembly, the second shaft assembly and the third shaft assembly. The fourth shaft assembly then transmits power to the fifth shaft assembly and the seventh shaft assembly respectively. The sixth shaft assembly can be driven by the fifth shaft assembly, and the eighth shaft assembly can be driven by the seventh shaft assembly. The power is transmitted to the rear axle, thereby driving the rear axle tires to rotate at the same time, greatly improving the harvester's ability to escape from difficulties. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the utility model without the main structure of the gearbox;

[0016] Figure 3 This is a schematic diagram of the structure of the seventh shaft assembly and the eighth shaft assembly of the utility model

[0017] In the figure: 1. gearbox body; 2. first shaft assembly; 201. first gear; 3. second shaft assembly; 301. second gear; 4. third shaft assembly; 401. third main gear; 402. third slave gear; 5. fourth shaft assembly; 501. fourth main gear; 502. fourth slave gear; 503. fourth connecting gear; 6. fifth shaft assembly; 601. fifth main gear; 602. fifth slave gear; 7. sixth shaft assembly; 701. sixth gear; 8. seventh shaft assembly; 801. seventh connecting gear; 802. seventh bevel gear; 803. fork shaft connector; 9. eighth shaft assembly; 901. eighth bevel gear; 10. four-wheel drive fork shaft. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-3 The utility model provides a technical solution: a multi-gear harvester gearbox structure, including a gearbox body 1 and a shaft assembly arranged inside the gearbox body 1, the shaft assembly including a first shaft assembly 2, a second shaft assembly 3, a third shaft assembly 4, a fourth shaft assembly 5, a fifth shaft assembly 6, a sixth shaft assembly 7, a seventh shaft assembly 8 and an eighth shaft assembly 9, the first shaft assembly 2, the second shaft assembly 3, the third shaft assembly 4, the fourth shaft assembly 5, the fifth shaft assembly 6 and the sixth shaft assembly 7 are arranged in sequence from bottom to top in the box body, the seventh shaft assembly 8 is arranged on the side of the fourth shaft assembly 5, and the eighth shaft assembly 9 is arranged below the seventh shaft assembly 8.

[0022] The first shaft assembly 2 is provided with a first gear 201, the second shaft assembly 3 is provided with a second gear 301 meshing with the first gear 201, the third shaft assembly 4 is provided with a third main gear 401 and a third slave gear 402, the third main gear 401 and the second gear 301 are meshed with each other, the fourth shaft assembly 5 is provided with a fourth main gear 501, a fourth slave gear 502 and a fourth connecting gear 503, the fourth main gear 501 and the third slave gear 402 are meshed with each other, the fifth shaft assembly 6 is provided with a fifth main gear 601 and a fifth slave gear 602, the third main gear 401 and the third slave gear 402 are meshed with each other, The fifth main gear 601 is meshed with the fourth slave gear 502, the sixth shaft assembly 7 is provided with a sixth gear 701, the sixth gear 701 is meshed with the fifth slave gear 602, the seventh shaft assembly 8 is provided with a seventh bevel gear 802, a seventh connecting gear 801 and a fork shaft connector 803 connected to the seventh connecting gear 801, the seventh connecting gear 801 is meshed with the fourth connecting gear 503, the eighth shaft assembly 9 is provided with an eighth bevel gear 901 meshed with the seventh bevel gear 802, and the end of the eighth shaft assembly 9 is provided with a rear axle power output end.

[0023] The eighth shaft assembly 9 is used to connect the rear axle, the sixth shaft assembly 7 is used to connect the wheel rim, and the power is transmitted to the second shaft assembly 3 through the first shaft assembly 2. The second shaft assembly 3 transmits the power to the third shaft assembly 4. The third shaft assembly 4 transmits the power to the fourth shaft assembly 5. The fourth shaft assembly 5 transmits the power to the fifth shaft assembly 6 and the seventh shaft assembly 8 respectively. The fifth shaft assembly 6 drives the wheel rim through the sixth shaft assembly 7. The seventh shaft assembly 8 can transmit the power to the power output end of the rear axle through the eighth shaft assembly 9, and thus the power can be transmitted to the rear axle.

[0024] Furthermore, three third slave gears 402 and three fourth master gears 501 are respectively provided, and the three third slave gears 402 are respectively meshed with the three corresponding fourth master gears 501 .

[0025] Furthermore, the first shaft assembly 2 is connected to the power input end of the gearbox. By connecting the power input end to an external driving device, the first shaft assembly 2 can be used to transmit power to the first power output end and the second power output end.

[0026] Furthermore, a four-wheel drive fork shaft 10 that cooperates with each other is arranged below the fork shaft connecting member 803. The four-wheel drive fork shaft 10 is arranged to drive the fork shaft connecting member 803, thereby driving the seventh connecting gear 801 to move away from the fourth connecting gear 503, thereby canceling the rear axle transmission, thereby realizing two modes of rear axle non-driving and rear axle driving. Since the use of the four-wheel drive fork shaft 10 belongs to the existing mature technology, it will not be described in detail here.

[0027] Furthermore, the seventh bevel gear 802 and the eighth bevel gear 901 are both spiral bevel gears. The spiral bevel gears have high transmission efficiency, stable transmission ratio, high load-bearing capacity, and improved service life.

[0028] In summary, when the device is in use, power is provided to the first shaft assembly 2 through an external device, so that the first shaft assembly 2 transmits power to the second shaft assembly 3 through the first gear 201 and the second gear 301, the second shaft assembly 3 transmits power to the third shaft assembly 4 through the second gear 301 and the third main gear 401, and the third shaft assembly 4 transmits power to the fourth shaft assembly 5 through the third slave gear 402 and the fourth main gear 501. The connecting gear 503 is respectively meshed with the fifth main gear 601 and the seventh connecting gear 801, so that the fourth shaft assembly 5 transmits power to the fifth shaft assembly 6 and the seventh shaft assembly 8, and then the fifth shaft assembly 6 transmits power to the sixth shaft assembly 7 through the fifth slave gear 602 and the sixth gear 701, so that the sixth shaft assembly 7 can be used to drive the wheel rim, and the seventh shaft assembly 8 transmits power to the eighth shaft assembly 9 through the seventh bevel gear 802 and the eighth bevel gear 901, so that the eighth shaft assembly 9 can be used to drive the rear axle.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-gear harvester gearbox structure, characterized in that: The invention comprises a gearbox body (1) and a shaft assembly arranged inside the gearbox body (1), wherein the shaft assembly comprises a first shaft assembly (2), a second shaft assembly (3), a third shaft assembly (4), a fourth shaft assembly (5), a fifth shaft assembly (6), a sixth shaft assembly (7), a seventh shaft assembly (8) and an eighth shaft assembly (9), wherein the first shaft assembly (2), the second shaft assembly (3), the third shaft assembly (4), the fourth shaft assembly (5), the fifth shaft assembly (6) and the sixth shaft assembly (7) are arranged in sequence from bottom to top in the housing, the seventh shaft assembly (8) is arranged on the side of the fourth shaft assembly (5), and the eighth shaft assembly (9) is arranged below the seventh shaft assembly (8); The first shaft assembly (2) is provided with a first gear (201), the second shaft assembly (3) is provided with a second gear (301) meshing with the first gear (201), the third shaft assembly (4) is provided with a third main gear (401) and a third slave gear (402), the third main gear (401) and the second gear (301) are meshing with each other, the fourth shaft assembly (5) is provided with a fourth main gear (501), a fourth slave gear (502) and a fourth connecting gear (503), the fourth main gear (501) and the third slave gear (402) are meshing with each other, and the fifth shaft assembly (6) is provided with a fifth main gear (601) and a fifth slave gear (602) The fifth main gear (601) and the fourth slave gear (502) are meshed with each other. The sixth shaft assembly (7) is provided with a sixth gear (701), and the sixth gear (701) and the fifth slave gear (602) are meshed with each other. The seventh shaft assembly (8) is provided with a seventh bevel gear (802), a seventh connecting gear (801) and a fork shaft connecting member (803) connected to the seventh connecting gear (801), and the seventh connecting gear (801) and the fourth connecting gear (503) are meshed with each other. The eighth shaft assembly (9) is provided with an eighth bevel gear (901) meshed with the seventh bevel gear (802), and a rear axle power output end is provided at the end of the eighth shaft assembly (9).

2. A multi-gear harvester gearbox structure according to claim 1, characterized in that: The third slave gears (402) and the fourth master gears (501) are respectively provided in three numbers, and the three third slave gears (402) are respectively meshed with the three corresponding fourth master gears (501).

3. The multi-gear harvester gearbox structure according to claim 1, characterized in that: The first shaft assembly (2) is connected to the power input end of the gearbox.

4. The multi-gear harvester gearbox structure according to claim 1, characterized in that: A four-wheel drive fork shaft (10) that cooperates with each other is arranged below the fork shaft connecting piece (803).

5. The multi-gear harvester gearbox structure according to claim 1, characterized in that: The seventh bevel gear (802) and the eighth bevel gear (901) are both spiral bevel gears.

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