A multi-speed sprocket gearbox and transmission device for mixed sowing of multiple varieties of forage seeds and synchronous fertilization

Abstract

The present invention discloses a multi-speed sprocket gearbox for mixed sowing of multiple varieties of forage seeds and synchronous fertilization. In addition, the present application also provides a multi-speed transmission device for mixed sowing of multiple varieties of forage seeds and synchronous fertilization. The multi-speed sprocket gearbox provided by the present application can achieve 12-fold speed change, and its application in a whole machine can flexibly and efficiently adjust the sowing amount; the above-mentioned sprocket gearbox is applied to the transmission device, and the transmission device is applied to the whole machine, which can realize the multi-speed change function of the whole machine for simultaneous sowing of multiple varieties of degraded grassland and synchronous fertilization, and provides equipment support for realizing large-scale adjustment of sowing amount, supplementary sowing of forage seeds of different shapes and synchronous fertilization.

Description

Technical Field

[0001] The invention relates to the technical field of degraded grassland management equipment, and in particular to a multi-variety forage seed mixed sowing, synchronous fertilization, multi-stage speed-changing sprocket gearbox and a transmission device. Background Art

[0002] In recent decades, with the intensification of human activities, unreasonable grazing systems, blind reclamation, predatory use and other human factors, as well as the impact of changes in adverse natural factors, 90% of my country's grasslands have experienced varying degrees of degradation. The degradation of grasslands has led to a reduction in grassland area, a decline in grassland productivity, a large reduction in high-quality forage, a loss of biodiversity, an increase in soil erosion, and a disorder, imbalance and decline in ecosystem functions. The composition and structure of grassland plant species have evolved from a stable, highly functional multi-layer structure to an unstable, less functional single-layer structure, a decrease in biodiversity, and a significant deterioration in the structure, height, coverage and appearance of plant communities. Grassland plants have become smaller, shorter and sparser, and many rare plants have decreased or even disappeared, which has seriously restricted the functionality and stability of grassland ecosystems. To improve my country's grassland ecological environment, promote a virtuous cycle of grassland ecology, curb grassland degradation, and achieve grassland ecological restoration and productivity improvement, it is necessary to combine the actual situation of my country's grassland ecological restoration and productivity development, develop key equipment suitable for natural grassland vegetation restoration and construction, and accelerate the development of grassland ecological restoration.

[0003] Forage grass reseeding has become an important technology to improve grassland degradation, prevent wind and sand, and improve the environment in my country. Natural grasslands have a variety of plant types. Reseeding a single forage grass alone is not effective in improving grassland degradation, increasing grassland plant diversity, achieving grassland ecological restoration and improving productivity. It is necessary to mix multiple varieties of seeds on the grassland at the same time. Forage grass seeds are generally small in size, and their shapes are irregular, and some have awns, which leads to processing before sowing. In this way, there will be a large difference in shape, size, and volume between two different seeds. Different seed boxes must be set up for reseeding. Due to the different types of forage grass seeds, the amount of different seeds to be reseeded is also different, and the sowing speed needs to be changed according to the actual situation. Grassland ecological degradation also has an adverse effect on the soil ecological conditions of the grassland, making the soil barren, lacking nutrients such as nitrogen, phosphorus, and potassium in the soil, and reducing the organic matter content of the grassland. If the reseeded forage grass has a good growth, it is necessary to increase the fertility of the grassland and increase the organic matter content of the grassland soil. It is necessary to equip fertilization devices and increase fertilization systems.

[0004] At present, there is a lack of equipment suitable for forage reseeding in my country, and there are even fewer devices that can meet the needs of simultaneous mixed sowing of multiple varieties of forage seeds and synchronous fertilization. It is particularly important to develop reseeding equipment suitable for the management of degraded grasslands. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-variety forage seed mixed sowing and synchronous fertilization multi-stage speed sprocket gearbox and a transmission device, so as to further realize the research and production of multi-variety forage seed mixed sowing and synchronous fertilization complete machine equipment.

[0006] To achieve the purpose of the present invention, the present invention provides a multi-variety forage seed mixed sowing and synchronous fertilization multi-stage speed sprocket gearbox, including a sprocket gearbox input end shaft and a sprocket gearbox output end shaft, the sprocket gearbox input end shaft is coaxially provided with 6 sprockets with different numbers of teeth, namely a first sprocket, a second sprocket, a third sprocket, a fourth sprocket, a fifth sprocket, and a sixth sprocket, and the sprocket gearbox output end shaft is coaxially provided with two seventh sprockets and an eighth sprocket with different numbers of teeth, and the seventh sprocket and the eighth sprocket are slidably connected to the sprocket gearbox output end shaft, and are respectively tightened and fixed by a fastening screw, and the sprocket on the sprocket gearbox input end shaft is connected to the sprocket on the sprocket gearbox output end shaft through a speed change chain.

[0007] In addition, the present application also provides a multi-speed transmission device for mixed sowing of multiple varieties of forage seeds and synchronous fertilization.

[0008] The sprocket gearbox includes the above-mentioned travel wheel, friction wheel, ninth sprocket and chain I, tenth sprocket, eleventh sprocket, chain II, twelfth sprocket, thirteenth sprocket, chain III, fourteenth sprocket, output sprocket, chain IV, fifteenth sprocket, chain V, sixteenth sprocket,

[0009] The travel wheel drives the friction wheel to rotate, and a ninth sprocket is fixedly connected to the friction wheel shaft. The ninth sprocket drives the tenth sprocket to rotate through the chain I. The rotation of the tenth sprocket will drive the coaxial eleventh sprocket to rotate. A circle of chain II is installed on the circumferential surface of the twelfth sprocket. The meshing of the eleventh sprocket and the chain II drives the rotation of the twelfth sprocket. The twelfth sprocket is coaxially arranged with the thirteenth sprocket. The thirteenth sprocket drives the fourteenth sprocket to move through the chain III. The hexagonal shaft fixedly connected to the fourteenth sprocket drives the fertilizer dispensing device to work and discharge fertilizer.

[0010] The fourteenth sprocket is fixedly connected to the input end shaft of the sprocket gearbox, the output sprocket is fixedly connected to the output end shaft of the sprocket gearbox, and is drivingly connected to the fifteenth sprocket on the power input shaft of the front seeding box through the chain IV, and the square shaft fixedly connected to the fifteenth sprocket will drive the seeding device of the front seeding box to work;

[0011] The sprocket is coaxially arranged with the fifteenth sprocket, and is transmission-connected with the sixteenth sprocket on the power input shaft of the rear seeding box through the chain V. The square shaft fixedly connected to the sixteenth sprocket will drive the seeding device of the rear seeding box to work.

[0012] Further,

[0013] The output sprocket is detachably connected to the output end shaft of the sprocket gearbox via bolts.

[0014] Further,

[0015] It also includes sprocket A, sprocket B, and sprocket C. The sprocket B is a tensioner wheel for the transmission of the thirteenth and fourteenth sprockets, the sprocket C is a tensioner wheel for the transmission of the sprocket and the fifteenth sprocket, and the sprocket D is a tensioner wheel for the transmission of the sprocket and the sixteenth sprocket.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The multi-speed sprocket gearbox provided in the present application can achieve a 12-fold speed change. When applied to the whole machine, it can flexibly and efficiently adjust the sowing amount. In addition, the present application provides a multi-speed transmission device for mixed sowing of multiple varieties of forage seeds and synchronous fertilization. The above-mentioned sprocket gearbox is applied to the transmission device. When the transmission device is applied to the whole machine, the multi-speed change function of the whole machine for simultaneous sowing of multiple varieties of degraded grassland and synchronous fertilization can be realized, which provides equipment support for realizing large-scale adjustment of sowing amount, supplementary sowing of forage seeds of different shapes and synchronous fertilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure shows the expanded structure diagram of the sprocket gearbox of the present application;

[0019] Figure 2 The figure shows a schematic diagram of the top view of the sprocket gearbox of the present application;

[0020] Figure 3 The figure shows the main structural diagram of the sprocket gearbox of the present application;

[0021] Figure 4 The first schematic diagram of the main structure of the transmission device of the present application is shown;

[0022] Figure 5 Shown is a schematic diagram of the top view of the transmission device of the present application;

[0023] Figure 6 Shown is a second schematic diagram of the main structure of the transmission device of the present application;

[0024] Figure 7 The figure shows a schematic diagram of the transmission structure of the travel wheel and the friction wheel in the transmission device of the present application;

[0025] Figure 8 Shown is a schematic structural diagram of the chain change-direction transmission in the transmission device of the present application. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0028] Example 1

[0029] like Figure 1-Figure 3 As shown, the present embodiment provides a multi-stage speed-changing sprocket gearbox for mixed sowing of multiple varieties of forage seeds and synchronous fertilization on a whole machine, including a sprocket gearbox input end shaft and a sprocket gearbox output end shaft, six sprockets with different numbers of teeth are coaxially arranged on the sprocket gearbox input end shaft, namely a first sprocket 23, a second sprocket 24, a third sprocket 25, a fourth sprocket 26, a fifth sprocket 27, and a sixth sprocket 28, and two seventh sprockets 29 and an eighth sprocket 30 with different numbers of teeth are coaxially arranged on the sprocket gearbox output end shaft, and the seventh sprocket 29 and the eighth sprocket 30 are slidably connected to the sprocket gearbox output end shaft, and are respectively tightened and fixed by a fastening screw 33, and the sprocket on the sprocket gearbox input end shaft is connected to the sprocket on the sprocket gearbox output end shaft through a speed change chain.

[0030] If it is necessary to change the combination of the sprockets, the pull rod 31 can be loosened first to make the tensioning wheel 32 in a relaxed state, and then the fastening screw 33 on the output sprocket can be loosened, and the sprocket to be adjusted can be combined with the sprocket at the input end to achieve the required speed ratio, and then the fastening screw 33 can be tightened, and then the pull rod 31 can be tightened. The spring 34 can play a certain buffering role on the tensioning device, so that the tensioning wheel can be more effective.

[0031] The speed is adjusted by changing the combination of sprockets in the sprocket gearbox, and the transmission ratio is changed to adjust the speed of the seed metering device, thereby adjusting the sowing amount. The above structure can be used to adjust the speed by 12 times.

[0032] Example 2

[0033] like Figure 4-8 As shown, this embodiment provides a multi-variety forage seed mixed sowing and synchronous fertilization multi-stage speed transmission device, including the sprocket gearbox provided in Example 1, and also includes a walking wheel 2, a friction wheel 3, a ninth sprocket 4 and a chain I5, a tenth sprocket 6, an eleventh sprocket 8, a twelfth sprocket 9, a chain II10, a thirteenth sprocket 11, a chain III12, a fourteenth sprocket 13, an output sprocket 15, a chain IV16, a fifteenth sprocket 17, a chain V20, a sixteenth sprocket 21, a sprocket A7, a sprocket B14, a sprocket C18, and a sprocket D22.

[0034] Specifically, when sowing is required, the upper end of the hydraulic cylinder 1 returns oil, and the travel wheel 2 will rotate clockwise along the rotation axis O. When it contacts the friction wheel 3, the travel wheel 2 stops rotating around the O point, which will drive the friction wheel 3 to rotate counterclockwise. The ninth sprocket 4 fixed on the friction wheel shaft drives the tenth sprocket 6 to operate through the chain Ⅰ5. The sprocket A7 is a tensioning wheel when the ninth sprocket 4 and the tenth sprocket 6 are working. The rotation of the tenth sprocket 6 will drive the coaxial eleventh sprocket 8 to rotate. A circle of chain Ⅱ10 is installed on the twelfth sprocket 9. When the eleventh sprocket 8 is in operation, it will drive the operation of the twelfth sprocket 9 through the meshing with the chain Ⅱ10. The twelfth sprocket 9 plays a transmission reversing role to obtain the correct seeding and fertilizer discharging direction. The rotation of the twelfth sprocket 9 will drive the coaxial thirteenth sprocket 11 to rotate in the same direction. The thirteenth sprocket 11 will drive the fourteenth sprocket 13 to move via the chain III12. The hexagonal shaft fixedly connected to the fourteenth sprocket 13 will drive the fertilizer discharging device to work and discharge fertilizer. The sprocket B14 is the tensioner driven by the thirteenth sprocket 11 and the fourteenth sprocket 13. The power of the fourteenth sprocket 13 is changed 12 times through the sprocket gearbox, and then driven by the output sprocket 15 to drive the chain IV16 to be transmitted to the fifteenth sprocket 17 on the power input shaft of the front seed box. The square shaft fixedly connected to the fifteenth sprocket 17 will drive the seeding device of the front seed box to work, and the forage seeds in the front seed box will be discharged. The sprocket C18 is a tensioner driven by the sprocket 15 and the fifteenth sprocket 17. The sprocket 19 coaxial with the fifteenth sprocket 17 transmits the power to the sixteenth sprocket 21 on the power input shaft of the rear seed box through the chain V20. The square shaft fixedly connected to the sixteenth sprocket 21 will drive the seeding device of the rear seed box to work, and the forage seeds in the rear seed box will be discharged. The sprocket D22 is a tensioner of the sprocket 19 and the sixteenth sprocket 21.

[0035] The above device is applied to the whole machine, and the broadcast volume is adjusted in the following way.

[0036] (1) The speed is adjusted by changing the combination of sprockets in the sprocket gearbox, and the transmission ratio is changed to adjust the speed of the seed meter, thereby adjusting the sowing amount.

[0037] (2) The output sprocket 15 of the sprocket gearbox is replaced with a sprocket with a different number of teeth to change the transmission ratio to adjust the speed of the seed meter, thereby adjusting the sowing amount.

[0038] In addition, the above device also includes a seeding device and a fertilizer discharging device. Both the seeding device and the fertilizer discharging device adopt an outer groove wheel seeding device. The seeding and fertilizer discharging amount are adjusted by adjusting the movement of the first hand wheel 36, the second hand wheel 37, and the third hand wheel 38. Taking the front-end seeding device as an example, adjusting the movement of its second hand wheel 37 will drive the seeding shaft 39 to move axially, and the outer groove wheel 40 and the blocking wheel 41 fixedly connected to the seeding shaft 39 will also move axially, thereby changing the effective working length of the outer groove wheel in the seeding cup, and then changing the seeding amount. The first hand wheel 36 is used for the rear-end seeding device, and the third hand wheel 38 is used for the fertilizer discharging device.

[0039] The structures not described in detail in this application all adopt the existing technology.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A multi-speed transmission device for mixed sowing of multiple varieties of forage seeds and synchronous fertilization, characterized in that: It comprises a multi-speed sprocket gearbox for mixed sowing of multiple varieties of forage seeds and synchronous fertilization, the multi-speed sprocket gearbox for mixed sowing of multiple varieties of forage seeds and synchronous fertilization comprising a sprocket gearbox input end shaft and a sprocket gearbox output end shaft, the sprocket gearbox input end shaft is coaxially provided with six sprockets with different numbers of teeth, namely a first sprocket (23), a second sprocket (24), a third sprocket (25), a fourth sprocket (26), a fifth sprocket (27), and a sixth sprocket (28), the sprocket gearbox output end shaft is coaxially provided with two seventh sprockets (29) and an eighth sprocket (30) with different numbers of teeth, and the seventh sprocket (29) and the eighth sprocket (30) are slidably connected to the sprocket gearbox output end shaft and are respectively tightened and fixed by a fastening screw (33), and the sprocket on the sprocket gearbox input end shaft is connected to the sprocket on the sprocket gearbox output end shaft via a speed change chain; It also includes a travel wheel (2), a friction wheel (3), a ninth sprocket (4), a chain I (5), a tenth sprocket (6), an eleventh sprocket (8), a chain II (10), a twelfth sprocket (9), a thirteenth sprocket (11), a chain III (12), a fourteenth sprocket (13), an output sprocket (15), a chain IV (16), a fifteenth sprocket (17), a chain V (20), and a sixteenth sprocket (21). The travel wheel (2) drives the friction wheel (3) to rotate, and a ninth sprocket (4) is fixedly connected to the friction wheel shaft. The ninth sprocket (4) drives the tenth sprocket (6) to rotate via the chain I (5). The rotation of the tenth sprocket (6) drives the coaxial eleventh sprocket (8) to rotate. A circle of chain II (10) is installed on the circumferential surface of the twelfth sprocket (9). The meshing of the eleventh sprocket (8) and the chain II (10) drives the rotation of the twelfth sprocket (9). The twelfth sprocket (9) is coaxially arranged with the thirteenth sprocket (11). The thirteenth sprocket (11) drives the fourteenth sprocket (13) to move via the chain III (12). The hexagonal shaft fixedly connected to the fourteenth sprocket (13) drives the fertilizer dispensing device to work and discharge fertilizer. The fourteenth sprocket (13) is fixedly connected to the input end shaft of the sprocket gearbox, the output sprocket (15) is fixedly connected to the output end shaft of the sprocket gearbox, and is transmission-connected to the fifteenth sprocket (17) on the power input shaft of the front seeding box through the chain IV (16), and the square shaft fixedly connected to the fifteenth sprocket (17) will drive the seeding device of the front seeding box to work; The sprocket (19) is coaxially arranged with the fifteenth sprocket (17), and is transmission-connected to the sixteenth sprocket (21) on the power input shaft of the rear seeding box through the chain V (20). The square shaft fixedly connected to the sixteenth sprocket (21) drives the seeding device of the rear seeding box to work; The output sprocket (15) is detachably connected to the output end shaft of the sprocket gearbox via bolts (35); The invention also comprises a sprocket A (7), a sprocket B (14), a sprocket C (18), and a sprocket D (22), wherein the sprocket A (7) is a tensioner wheel when the ninth sprocket (4) and the tenth sprocket (6) are in transmission, the sprocket B (14) is a tensioner wheel when the thirteenth sprocket (11) and the fourteenth sprocket (13) are in transmission, the sprocket C (18) is a tensioner wheel when the sprocket (15) and the fifteenth sprocket (17) are in transmission, and the sprocket D (22) is a tensioner wheel when the sprocket (19) and the sixteenth sprocket (21) are in transmission.

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