Gearbox for silage hay cutter

Abstract

The utility model relates to a gearbox for a silage hay cutter, and belongs to the technical field of silage harvesting machinery. According to the technical scheme, an intermediate gear (5) is meshed with a gear input shaft (3), a first output gear (7) and a second output gear (8), and the gear input shaft (3), the intermediate gear (5), the first output gear (7) and the second output gear (8) are all arranged on the same plane; the first output gear (7) and the second output gear (8) are meshed with a first hollow output shaft (9) and a second hollow output shaft (10) through internal splines respectively, and the central axis of the gear input shaft (3), the central axis of the first hollow output shaft and the central axis of the second hollow output shaft are parallel. The feeding device has the advantages that under the condition that only one power source is used for input, same-direction output of two different rotating speeds is achieved, the adjusting mode is simple and flexible, and therefore it is guaranteed that the feeding device of the hay cutter transmits power accurately, reasonably and effectively in the working process, and the purpose of efficient utilization of the power is achieved.

Description

Technical Field

[0001] The utility model relates to a gearbox for an ensilage hay chopper and belongs to the technical field of ensilage harvesting machinery. Background Art

[0002] In the feeding device of the silage chopper, there are usually multiple feeding rollers, including a main feeding roller and multiple auxiliary feeding rollers. Since the main and auxiliary feeding rollers have different diameters and rotation speeds, but the same direction, the gearbox is used to achieve the same-direction differential rotation of the main and auxiliary feeding rollers.

[0003] The gearbox is a connecting device between the active and driven gears, and is the path for transmitting power in the feeding device of the silage mower. In the agricultural machinery industry, the current gearboxes of silage mowers have uneven power distribution and large power loss during operation, and cannot output multiple input power. Moreover, most gearboxes are fixed relative to the machine body and cannot be adjusted in real time according to the feeding amount, resulting in low working efficiency. Utility Model Content

[0004] The utility model aims to provide a gearbox for a silage hay mower, which realizes the dual-axis co-directional rotation and differential output of the hay mower gearbox, and the adjustment method is simple and flexible, thereby ensuring that the hay mower feeding device transmits power accurately, reasonably and effectively during operation, so as to achieve the purpose of efficient use of power and solve the problems existing in the background technology.

[0005] The technical solution of the utility model is:

[0006] A gearbox for a silage mower comprises a housing 1, a housing 2, a gear input shaft, an intermediate gear, an output gear 1, an output gear 2, a hollow output shaft 1 and a hollow output shaft 2. The housing 1 and the housing 2 form a gearbox housing. An intermediate gear, an output gear 1 and an output gear 2 are arranged inside the gearbox housing. The intermediate gear is meshed with the gear input shaft, the output gear 1 and the output gear 2. The gear input shaft, the intermediate gear, the output gear 1 and the output gear 2 are arranged in the same plane. The output gear 1 and the output gear 2 are respectively meshed with the hollow output shaft 1 and the hollow output shaft 2 through internal splines. The central axes of the gear input shaft, the hollow output shaft 1 and the hollow output shaft 2 are parallel to each other. The gear input shaft is connected to the housing 1, and the two ends of the hollow output shaft 1 and the hollow output shaft 2 are respectively connected to the housing 1 and the housing 2. Power is transmitted to the intermediate gear through the gear input shaft, and the intermediate gear distributes the power transmitted by the gear input shaft to the output gear 1 and the output gear 2.

[0007] The shell 2 is fixedly connected to the feeding roller; the shell 1 and the shell 2 are both provided with a spring hanging hole 1 and a spring hanging hole 2, the spring hanging hole 1 on the shell 1 matches the spring hanging hole 1 on the shell 2, and the two spring hanging holes 1 are connected to one end of the spring 1; the spring hanging hole 2 on the shell 1 matches the spring hanging hole 2 on the shell 2, and the two spring hanging holes 2 are connected to one end of the spring 2; the other ends of the spring 1 and the spring 2 are both connected to the vehicle body frame. The spring hanging hole 1 and the spring hanging hole 2 can hang different types of springs, and by adjusting the spring, the gearbox housing is moved to drive the feeding roller to move, so that the gap between the feeding rollers can be changed to meet the requirements of the required material cutting size.

[0008] The gear input shaft is fixed to the housing one through a locating bearing one, and the two ends of the intermediate gear are fixed to the housing one and the housing two through a locating bearing two, and are closed by an elastic retaining ring and an oil seal cover; the two ends of the hollow output shaft one are fixed to the housing one and the housing two through a locating bearing three, and the two ends of the hollow output shaft two are fixed to the housing one and the housing two through a locating bearing four.

[0009] The housing is provided with an oil filling hole and an oil outlet hole to protect and clean the gearbox gears.

[0010] A plurality of evenly arranged positioning holes, bolt holes and matching bolts are provided on the edge positions of the shell 1 and the shell 2.

[0011] The beneficial effects of the utility model are: when there is only one power source input, two same-direction outputs with different rotation speeds are realized, and the adjustment method is simple and flexible, thereby ensuring that the feeding device of the hay mower transmits power accurately, reasonably and effectively during the working process, so as to achieve the purpose of efficient use of power. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a three-dimensional diagram of the utility model;

[0014] Figure 3 It is a cross-sectional view of the utility model;

[0015] Figure 4 This is a schematic diagram of the second structure of the housing of the utility model;

[0016] In the figure: housing 1, housing 2, gear input shaft 3, locating bearing 1, intermediate gear 5, locating bearing 2, output gear 1, output gear 2, hollow output shaft 1, hollow output shaft 2, locating bearing 3, locating bearing 4, 12, spring suspension hole 1, 13, spring suspension hole 2, 14. DETAILED DESCRIPTION

[0017] The present invention will be further described below through examples in conjunction with the accompanying drawings.

[0018] A gearbox for a silage mower, comprising a housing 1, a housing 2, a gear input shaft 3, an intermediate gear 5, an output gear 1 7, an output gear 2 8, a hollow output shaft 1 9 and a hollow output shaft 2 10, wherein the housing 1 and the housing 2 2 form a gearbox housing, wherein an intermediate gear 5, an output gear 1 7 and an output gear 2 8 are arranged inside the gearbox housing, wherein the gear input shaft 3 is meshed with the intermediate gear 5, and the intermediate gear 5 is meshed with the output gear 1 7 and the output gear 2 8, and the gear input shaft 3, the intermediate gear 5, the output gear 1 7 and the output gear 2 8 are all arranged in the same plane; The output gear 1 7 and the output gear 2 8 are respectively meshed with the hollow output shaft 1 9 and the hollow output shaft 2 10 through internal splines. The central axes of the gear input shaft 3, the hollow output shaft 1 9 and the hollow output shaft 2 10 are parallel to each other. The gear input shaft 3 is connected to the housing 1 1, the two ends of the hollow output shaft 1 9 are respectively connected to the housing 1 1 and the housing 2 2, and the two ends of the hollow output shaft 2 10 are respectively connected to the housing 1 1 and the housing 2 2; the power is transmitted to the intermediate gear 5 through the gear input shaft 3, and the intermediate gear 5 distributes the power transmitted by the gear input shaft 3 to the output gear 1 7 and the output gear 2 8.

[0019] The shell 22 is fixedly connected to the feeding roller; the shell 11 and the shell 22 are both provided with a spring hanging hole 13 and a spring hanging hole 2 14, the spring hanging hole 13 on the shell 11 matches the spring hanging hole 13 on the shell 22, and the two spring hanging holes 13 are connected to one end of the spring 1; the spring hanging hole 2 14 on the shell 11 matches the spring hanging hole 2 14 on the shell 22, and the two spring hanging holes 2 14 are connected to one end of the spring 2; the other ends of the spring 1 and the spring 2 are both connected to the vehicle body frame. The spring hanging hole 13 and the spring hanging hole 2 14 can hang different types of springs, and by adjusting the spring, the gearbox housing is moved to drive the feeding roller to move, so that the gap between the feeding rollers can be changed to meet the requirements of the required material cutting size.

[0020] The gear input shaft 3 is combined with a locating bearing 4, and the locating bearing 4 is positioned on the housing 1; one end of the intermediate gear 5 is fixed to the housing 1 through a locating bearing 6 and is closed by an elastic retaining ring and an oil seal cover, and the other end is fixed to the housing 2 2 through a locating bearing 6; both ends of the hollow output shaft 9 are respectively positioned on the housing 1 and the housing 2 2 through locating bearings 3 11, and both ends of the hollow output shaft 2 10 are respectively positioned on the housing 1 and the housing 2 2 through locating bearings 4 12.

[0021] The housing 1 is provided with an oil filling hole and an oil outlet hole to protect and clean the gearbox gears.

[0022] A plurality of evenly arranged positioning holes, bolt holes and matching bolts are provided on the edge positions of the shell 1 and the shell 2 2 .

[0023] The utility model has a compact structure and a small overall volume, but can realize multiple different speed ratio adjustments, and the adjustment method is simple and flexible, which is convenient for production assembly and daily maintenance, and is also suitable for small mechanical transmission devices that require multiple different speed levels. The utility model has a simple structure and stable power transmission. With only one power source input, it can realize the same-direction output of two different speeds, while ensuring operating efficiency, saving manufacturing costs and reducing power loss.

Claims

1. A gearbox for a silage cutter, characterized in that: The invention comprises a housing 1 (1), a housing 2 (2), a gear input shaft (3), an intermediate gear (5), an output gear 1 (7), an output gear 2 (8), a hollow output shaft 1 (9) and a hollow output shaft 2 (10), wherein the housing 1 (1) and the housing 2 (2) form a gearbox housing, wherein an intermediate gear (5), an output gear 1 (7) and an output gear 2 (8) are arranged inside the gearbox housing, wherein the intermediate gear (5) meshes with the gear input shaft (3), the output gear 1 (7) and the output gear 2 (8), and the gear input shaft (3), the intermediate gear (5) and the output gear 1 (7) are meshed with each other. The gear (5), the output gear 1 (7) and the output gear 2 (8) are arranged in the same plane; the output gear 1 (7) and the output gear 2 (8) are respectively meshed with the hollow output shaft 1 (9) and the hollow output shaft 2 (10) through internal splines; the central axes of the gear input shaft (3), the hollow output shaft 1 (9) and the hollow output shaft 2 (10) are parallel to each other; the gear input shaft (3) is connected to the housing 1 (1); and the two ends of the hollow output shaft 1 (9) and the hollow output shaft 2 (10) are respectively connected to the housing 1 (1) and the housing 2 (2).

2. A gearbox for a silage cutter according to claim 1, characterized in that: The second shell (2) is fixedly connected to the feeding roller; the first shell (1) and the second shell (2) are both provided with a spring hanging hole (13) and a spring hanging hole (14); the first spring hanging hole (13) on the first shell (1) matches the first spring hanging hole (13) on the second shell (2); the two first spring hanging holes (13) are connected to one end of the first spring; the second spring hanging hole (14) on the first shell (1) matches the second spring hanging hole (14) on the second shell (2); the two second spring hanging holes (14) are connected to one end of the second spring; the other ends of the first spring and the second spring are both connected to the vehicle body frame.

3. A gearbox for a silage cutter according to claim 1 or 2, characterized in that: The gear input shaft (3) is fixed on the housing one (1) via a locating bearing one (4).

4. A gearbox for a silage cutter according to claim 1 or 2, characterized in that: The two ends of the intermediate gear (5) are respectively fixed to the housing 1 (1) and the housing 2 (2) via positioning bearing 2 (6), and are sealed via an elastic retaining ring and an oil seal cover.

5. A gearbox for a silage cutter according to claim 1 or 2, characterized in that: The two ends of the hollow output shaft one (9) are fixed to the housing one (1) and the housing two (2) respectively through positioning bearings three (11), and the two ends of the hollow output shaft two (10) are fixed to the housing one (1) and the housing two (2) respectively through positioning bearings four (12).

6. A gearbox for a silage cutter according to claim 1 or 2, characterized in that: The housing 1 (1) is provided with an oil filling hole and an oil outlet hole.

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