Gearbox for seedbed preparation machine

Abstract

The utility model relates to a gearbox for a seedbed preparation machine, which comprises a shell, a driving unit, a first output shaft and a second output shaft, the driving unit, the first output shaft and the second output shaft are all arranged in the shell, and the driving unit is used for driving the first output shaft and the second output shaft to rotate; a first sliding groove is formed in the shell, and the first output shaft is installed in the first sliding groove and can move along the path of the first sliding groove. A second sliding groove is formed in the shell, the second output shaft is installed in the second sliding groove and can move along the path of the second sliding groove, and the problem that an existing output shaft is single in output and cannot meet the dual requirements for rough ploughing and fine ploughing of soil is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery and equipment, in particular to a gearbox for a seed bed preparation machine. Background Art

[0002] In modern agricultural production, the gearbox is usually installed on the seed bed preparation machine. As an important preparation step before sowing, seed bed preparation is directly related to the growth environment and final yield of crops. In actual application, the geological conditions of farmland vary greatly, from soft sandy soil to hard clay. Different soil types have different requirements for the depth and method of rotary tillage. For example, in order to improve land utilization and economic benefits, two crops (such as corn and mung beans) are usually planted on the same plot at the same time, which can make full use of land resources, increase the yield per unit area, and achieve the harvest of two crops in the same growth cycle. However, corn is a deep-rooted crop and requires a deeper tillage layer to promote root development; while beans (such as mung beans) pay more attention to the loosening and flatness of the soil surface. Existing gearboxes usually have a single output, and a single rotary tillage tool is used to crush and organize the soil at the same depth. However, this design often cannot meet the dual needs of rough and fine tillage of the soil at the same time, and cannot achieve the purpose of deep and shallow tillage. Utility Model Content

[0003] The utility model aims to provide a gearbox for a seed bed preparation machine, aiming to solve the problem that the existing output shaft has a single output and cannot meet the dual requirements of rough tillage and fine tillage of the soil.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A gearbox for a seed bed preparation machine, comprising a housing, a drive unit, a first output shaft and a second output shaft, wherein the drive unit, the first output shaft and the second output shaft are all arranged in the housing, and the drive unit is used to drive the first output shaft and the second output shaft to rotate;

[0006] The shell is provided with a first slide groove, the first output shaft is installed in the first slide groove and can move along the path of the first slide groove; the shell is provided with a second slide groove, the second output shaft is installed in the second slide groove and can move along the path of the second slide groove.

[0007] Further, in the first direction, the first output shaft is located on the left side of the second output shaft; in the second direction, the first output shaft is located below the second output shaft.

[0008] Furthermore, it also includes an end cover, which is detachably mounted on the housing and is used to limit the first output shaft and the second output shaft.

[0009] The first output shaft and the second output shaft are both provided with limit rings;

[0010] A ring groove is formed on one side of the end cover close to the limiting ring, and the limiting ring can be installed in the ring groove to limit the movement of the limiting ring along the third direction.

[0011] Furthermore, a plurality of rollers are evenly distributed on the circumferential surface of the annular groove, and each of the rollers is rollingly connected to the limit ring.

[0012] Further, the driving unit includes an input shaft and a first gear, a second gear and a third gear rotatably connected in the housing, the input shaft drives the first gear to rotate, and the first gear drives the second gear and the third gear to rotate;

[0013] A fourth gear is coaxially connected to the first output shaft, and the fourth gear and the second gear can be meshed or disengaged with each other;

[0014] The second output shaft is coaxially connected with a fifth gear, and the fifth gear and the third gear can be meshed or disengaged with each other.

[0015] Furthermore, the first sliding groove has an arc-shaped structure, and when the fourth gear and the second gear are disengaged from each other, the first output shaft can move along the path of the first sliding groove.

[0016] Furthermore, the second slide groove has an arc-shaped structure, and when the fifth gear and the third gear are disengaged from each other, the second output shaft can move along the path of the second slide groove.

[0017] Furthermore, the shell protrudes outward on one side close to the fourth gear to form a deep plowing expansion chamber, and the first output shaft can drive the fourth gear to slide into the deep plowing expansion chamber. When the fourth gear is located in the deep plowing expansion chamber, the fourth gear is disengaged from the second gear.

[0018] Furthermore, the side of the housing close to the fifth gear is protruded outward to form a shallow tillage expansion chamber, and the second output shaft can drive the fifth gear to slide into the shallow tillage expansion chamber. When the fifth gear is located in the shallow tillage expansion chamber, the fifth gear is disengaged from the third gear.

[0019] Beneficial effects of the utility model:

[0020] 1. In the utility model, the tractor transmits power to the gearbox through the input shaft, and the gearbox divides the power into two parts through gear transmission inside, and transmits them to the first output shaft and the second output shaft respectively to drive them to work. The first output shaft is used to connect with the rough tillage rotary cutter of the seed bed preparation machine, and is driven as an output shaft of the gearbox to perform preliminary crushing and tilling of the soil, effectively crushing large pieces of soil and root stubble residues, and creating favorable conditions for subsequent fine tillage operations. The second output shaft is used to connect the fine tillage rotary cutter, which, with its dense blade arrangement and high speed, further refines the soil after rough tillage, ensures the uniformity and fineness of soil particles, and provides an ideal soil environment for seed implantation.

[0021] The use of this dual-output shaft gearbox design not only improves the operating efficiency of the seed bed preparation machine, but also significantly improves the soil crushing effect, making the soil softer and finer, which is conducive to the root development and nutrient absorption of seeds, and meets the diversified needs of modern agricultural production.

[0022] 2. The first output shaft and the second output shaft can be moved in the first slide groove and the second slide groove on the gearbox to be adjusted according to needs, and the positions of the coarse tillage rotary blade and the fine tillage rotary blade on the frame can be flexibly adjusted to meet the tillage needs of different depths, thereby improving the flexibility and adaptability of tillage.

[0023] Other advantages, objectives and features of the present application will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present application. The objectives and other advantages of the present application can be achieved and obtained through the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the gearbox of the utility model installed on a seed bed preparation machine;

[0025] Figure 2 It is a schematic diagram of the overall structure of the gearbox used for the seed bed preparation machine of the utility model;

[0026] Figure 3 It is a partial structural schematic diagram of a gearbox for a seed bed preparation machine of the utility model;

[0027] Figure 4 It is a structural schematic diagram of another angle of the gearbox used for the seed bed preparation machine of the utility model;

[0028] Figure 5 It is a schematic diagram of the fourth gear and the second gear in the gearbox of the seed bed preparation machine of the utility model being separated;

[0029] Figure 6 This is a schematic diagram of a housing of a gearbox embodiment of the utility model for a seed bed preparation machine;

[0030] Figure 7 This is a schematic structural diagram of a gearbox embodiment of the utility model for a seed bed preparation machine in which the fourth gear is installed on the first output shaft;

[0031] Figure 8 This is another perspective structural schematic diagram of the fourth gear of the gearbox embodiment of the utility model for the seed bed preparation machine installed on the first output shaft.

[0032] Among them, the seed bed preparation machine 1, the gearbox 2, the drive unit 21, the shell 211, the first slide 2111, the second slide 2112, the deep tillage extension chamber 2113, the shallow tillage extension chamber 2114, the input shaft 212, the first gear 213, the second gear 214, the third gear 215, the fourth gear 216, the fifth gear 217, the first output shaft 22, the second output shaft 23, the rough tillage rotary cutter 24, the limit ring 26, the end cover 27, the ring groove 271, and the roller 272. DETAILED DESCRIPTION

[0033] The following will describe the implementation of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0034] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0035] This embodiment proposes a gearbox for a seed bed preparation machine, which is used to be installed on the seed bed preparation machine 1, such as Figures 1 to 8 As shown, it includes a housing 211, a driving unit 21, a first output shaft 22 and a second output shaft 23. The driving unit 21, the first output shaft 22 and the second output shaft 23 are all arranged in the housing 211. The driving unit 21 is used to drive the first output shaft 22 and the second output shaft 23 to rotate; Figure 2 and Figure 3As shown, in the first direction, the first output shaft 22 is located on the left side of the second output shaft 23 ; in the second direction, the first output shaft 22 is located below the second output shaft 23 .

[0036] like Figure 3 As shown, the gearbox 2 divides the power into two parts through gear transmission, and transmits them to the first output shaft 22 and the second output shaft 23 respectively to drive them to work. The first output shaft 22 is used to connect with the rough tillage rotary blade 24 of the seed bed preparation machine 1. The working direction of the seed bed preparation machine 1 is as shown in FIG. Figure 1 As shown by the middle arrow, as an output shaft drive of the gearbox 2, the soil is initially broken and tilled, and large pieces of soil and root stubble residues are effectively broken, creating favorable conditions for subsequent fine tillage operations. The second output shaft 23 is used to connect the fine tillage rotary blade (not shown) to further refine the soil after rough tillage, ensure the uniformity and fineness of soil particles, and provide an ideal soil environment for seed implantation.

[0037] like Figure 2 and Figure 3 As shown, a first slide groove 2111 is provided on the housing 211, and the first output shaft 22 is installed in the first slide groove 2111 and can move along the path of the first slide groove 2111; a second slide groove 2112 is provided on the housing 211, and the second output shaft 23 is installed in the second slide groove 2112 and can move along the path of the second slide groove 2112. The first output shaft 22 can move in the first slide groove 2111 on the gearbox 2 as required, and the second output shaft 23 can move in the second slide groove 2112 on the gearbox 2 as required, so as to flexibly adjust the positions of the rough tillage rotary blade 24 and the fine tillage rotary blade on the seed bed preparation machine, thereby adapting to the tillage requirements of different depths and improving the flexibility and adaptability of tillage.

[0038] As a preferred embodiment, Figure 3As shown, the driving unit 21 includes an input shaft 212 and a first gear 213, a second gear 214 and a third gear 215 rotatably connected in the housing 211, the input shaft 212 can drive the first gear 213 to rotate, and the first gear 213 can drive the second gear 214 and the third gear 215 to rotate; a fourth gear 216 is coaxially connected to the first output shaft 22, and the fourth gear 216 and the second gear 214 can engage with or disengage from each other; a fifth gear 217 is coaxially connected to the second output shaft 23, and the fifth gear 217 and the third gear 215 can engage with or disengage from each other. The first slide groove 2111 has an arc-shaped structure. When the fourth gear 216 and the second gear 214 are disengaged from each other, the first output shaft 22 can move along the path of the first slide groove 2111; when the depth of the cultivated land needs to be adjusted, the fourth gear 216 and the second gear 214 are first disengaged from each other. At this time, the first output shaft 22 is no longer directly driven by the second gear 214, but can move along the arc path of the first slide groove 2111 under the action of external force (such as manual, electric or hydraulic drive). This embodiment adopts manual push.

[0039] The second slide groove 2112 is an arc-shaped structure, and when the fifth gear 217 and the third gear 215 are disengaged from each other, the second output shaft 23 can move along the path of the second slide groove 2112. Similarly, when it is necessary to adjust the shallow tillage depth, the fifth gear 217 and the third gear 215 are disengaged from each other first, and then the second output shaft 23 moves along the arc-shaped path of the second slide groove 2112 under the action of external force, thereby changing the depth of the fine tillage rotary blade in the soil, thereby achieving the purpose of adjusting the depth of the cultivated land.

[0040] Furthermore, the housing 211 protrudes outward on one side close to the fourth gear 216 to form a deep tillage extension chamber 2113. The first output shaft 22 can drive the fourth gear 216 to slide into the deep tillage extension chamber 2113. When the fourth gear 216 is located in the deep tillage extension chamber 2113, the fourth gear 216 is disengaged from the second gear 214. In this embodiment, the housing 211 is designed with an outwardly protruding portion on one side close to the fourth gear 216 and the fifth gear 217 to form a deep tillage extension chamber 2113 and a shallow tillage extension chamber 2114, respectively. These two chambers provide an additional moving space for the fourth gear 216 and the fifth gear 217. When it is necessary to adjust the tillage depth, the operator can activate the corresponding adjustment mechanism (such as a hydraulic cylinder, a manual lever, etc.). These mechanisms (not shown) can drive the first output shaft 22 or the second output shaft 23 along the axial path (that is, Figure 2With the axial movement of the first output shaft 22 or the second output shaft 23, the fourth gear 216 and the fifth gear 217 will gradually slide out of the normal meshing position with the second gear 214 and the third gear 215. When the fourth gear 216 completely enters the deep tillage expansion chamber 2113, the meshing between it and the second gear 214 will be completely disengaged. At this time, the first output shaft 22 can freely rotate and move along the circumferential direction of the second gear 214 in the deep tillage expansion chamber 2113 without being restricted by the transmission of the second gear 214.

[0041] Furthermore, the side of the housing 211 close to the fifth gear 217 protrudes outward to form a shallow tillage expansion chamber 2114. The second output shaft 23 can drive the fifth gear 217 to slide into the shallow tillage expansion chamber 2114. When the fifth gear 217 is located in the shallow tillage expansion chamber 2114, the fifth gear 217 is disengaged from the third gear 215.

[0042] Similarly, when the fifth gear 217 completely enters the shallow tillage expansion chamber 2114, the meshing between it and the third gear 215 will also be completely disengaged, and the second output shaft 23 can freely rotate and move along the circumferential direction of the third gear 215 in the shallow tillage expansion chamber 2114. After disengaging from the restriction of meshing, the operator can continue to push the first output shaft 22 or the second output shaft 23 to reach the desired depth position, and finally fix the first output shaft 22 or the second output shaft 23 at the preset position by operating the locking mechanism (such as a locking screw, a buckle or a hydraulic lock, etc.) (it should be noted that the fixing here means that the first output shaft 22 or the second output shaft 23 cannot move along its axial direction, but can rotate by itself).

[0043] As a preferred embodiment, this embodiment further includes an end cover 27, which is detachably mounted on the housing 211 and is used to limit the first output shaft 22 and the second output shaft 23. Furthermore, a limiting ring 26 is provided on both the first output shaft 22 and the second output shaft 23. A ring groove 271 is provided on the side of the end cover 27 close to the limiting ring 26. The limiting ring 26 can be installed in the ring groove 271 to limit the movement of the limiting ring 26 along the third direction. The limiting ring 26 is installed on the first output shaft 22 and the second output shaft 23. The end cover 27 is detachably mounted on the housing 211 by bolt connection, so that the limiting ring 26 can be installed in the ring groove 271. The limiting ring 26 can only rotate, but not axially (that is, Figure 2 The annular groove 271 is provided with a plurality of rollers 272 evenly distributed on the circumference of the annular groove 271, and each roller 272 is in rolling connection with the limit ring 26. The rollers 272 and the limit ring 26 are in rolling connection, which reduces friction and wear and makes the movement of the shaft smoother and more precise.

[0044] In the utility model, the first output shaft 22 is used to connect with the rough tillage rotary cutter 24 of the seed bed preparation machine 1, and is driven as an output shaft of the gearbox 2 to perform preliminary crushing and tilling of the soil, effectively crushing large pieces of soil and root stubble residues, and creating favorable conditions for subsequent fine tillage operations; and the second output shaft 23 is used to connect the fine tillage rotary cutter, which, with its dense blade arrangement and high rotation speed, further refines the rough-tilled soil to ensure the uniformity and fineness of the soil particles, and provides an ideal soil environment for seed implantation; the design of this dual-output shaft gearbox 2 not only improves the operating efficiency of the seed bed preparation machine 1, but also significantly improves the soil crushing effect, making the soil softer and finer, which is conducive to the root development and nutrient absorption of the seeds. At the same time, the design also enhances the adaptability and flexibility of the seed bed preparation machine 1, and can be adjusted and optimized according to different soil types and tillage requirements to meet the diversified needs of modern agricultural production, and solves the problem that the existing output shaft is a single output and cannot meet the dual needs of rough and fine tillage of the soil. It has a compact structure and strong practicality.

[0045] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A gearbox for a seed bed preparation machine, for installation on the seed bed preparation machine, characterized in that: Comprising a housing (211), a drive unit (21), a first output shaft (22) and a second output shaft (23), wherein the drive unit (21), the first output shaft (22) and the second output shaft (23) are all arranged in the housing (211), and the drive unit (21) is used for driving the first output shaft (22) and the second output shaft (23) to rotate; In the first direction, the first output shaft (22) is located on the left side of the second output shaft (23); in the second direction, the first output shaft (22) is located below the second output shaft (23).

2. The gearbox for a seed bed preparation machine according to claim 1, characterized in that: The housing (211) is provided with a first slide groove (2111), the first output shaft (22) is installed in the first slide groove (2111), and can move along the path of the first slide groove (2111); the housing (211) is provided with a second slide groove (2112), the second output shaft (23) is installed in the second slide groove (2112), and can move along the path of the second slide groove (2112).

3. The gearbox for a seed bed preparation machine according to claim 2, characterized in that: It also includes an end cover (27), which is detachably mounted on the housing (211) and is used to limit the first output shaft (22) and the second output shaft (23).

4. The gearbox for a seed bed preparation machine according to claim 3, characterized in that: A limit ring (26) is provided on both the first output shaft (22) and the second output shaft (23); A ring groove (271) is formed on one side of the end cover (27) close to the limiting ring (26), and the limiting ring (26) can be installed in the ring groove (271) to limit the movement of the limiting ring (26) along the third direction.

5. The gearbox for a seed bed preparation machine according to claim 4, characterized in that: A plurality of rollers (272) are evenly distributed on the circumferential surface of the annular groove (271).

6. The gearbox for a seed bed preparation machine according to any one of claims 3 or 5, characterized in that: The driving unit (21) comprises an input shaft (212) and a first gear (213), a second gear (214), and a third gear (215) rotatably connected in the housing (211), wherein the input shaft (212) drives the first gear (213) to rotate, and the first gear (213) drives the second gear (214) and the third gear (215) to rotate; A fourth gear (216) is coaxially connected to the first output shaft (22), and the fourth gear (216) and the second gear (214) can be meshed with or disengaged from each other; A fifth gear (217) is coaxially connected to the second output shaft (23), and the fifth gear (217) and the third gear (215) can be meshed with or disengaged from each other.

7. The gearbox for a seed bed preparation machine according to claim 6, characterized in that: The first sliding groove (2111) has an arc-shaped structure, and when the fourth gear (216) and the second gear (214) are disengaged from each other, the first output shaft (22) can move along the path of the first sliding groove (2111).

8. The gearbox for a seed bed preparation machine according to claim 7, characterized in that: The second slide groove (2112) has an arc-shaped structure, and when the fifth gear (217) and the third gear (215) are disengaged from each other, the second output shaft (23) can move along the path of the second slide groove (2112).

9. The gearbox for a seed bed preparation machine according to claim 7, characterized in that: The shell (211) protrudes outwards on one side close to the fourth gear (216), forming a deep plowing expansion chamber (2113); the first output shaft (22) can drive the fourth gear (216) to slide into the deep plowing expansion chamber (2113); when the fourth gear (216) is located in the deep plowing expansion chamber (2113), the fourth gear (216) is disengaged from the second gear (214).

10. The gearbox for a seed bed preparation machine according to claim 9, characterized in that: The shell (211) protrudes outward on one side close to the fifth gear (217) to form a shallow tillage expansion chamber (2114); the second output shaft (23) can drive the fifth gear (217) to slide into the shallow tillage expansion chamber (2114); when the fifth gear (217) is located in the shallow tillage expansion chamber (2114), the fifth gear (217) is disengaged from the third gear (215).

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