Precision seeder fan transmission device

Abstract

The utility model discloses a precision seeder fan transmission device which comprises a fan, the fan is connected with a mounting frame through a base, a supporting plate is arranged in the mounting frame and used for improving the strength of the mounting frame, a fixing cavity is formed in the bottom of the mounting frame, a gearbox is mounted in the fixing cavity, and the input end of the gearbox is connected with a transmission shaft; the output end of the gearbox is connected with a second belt pulley, the second belt pulley is in transmission connection with a first belt pulley through a belt, and the first belt pulley is connected with a driving shaft of a fan; the rotating speed of the rotating shaft is increased through the gearbox, the transmission stability can be guaranteed, the situation that due to the fact that the belt pulley is too small, the friction force of a transmission belt is not enough, and slipping between the belt and the belt pulley is caused is avoided, the fan transmission stability is improved, and then the fan operation stability is improved; the influence on the seeding effect of the seeding roller due to insufficient fan rotating speed is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and in particular relates to a fan transmission device for a precision seeding machine. Background Art

[0002] Precision seeding with precision seeding drum refers to a seed sowing technology for agricultural machinery that ensures the exact planting position and depth of each seed by using precision-designed drums and seed takers, thereby improving planting efficiency and crop yields.

[0003] The precision seeders currently in use generally adopt the air suction working principle, that is, the high-speed rotation of the fan generates negative pressure, and the negative pressure generated by the fan is connected to the precision seeding drum through a pipeline to achieve precise seeding. However, the problem encountered in practice is that the existing fan transmission method is that the transmission shaft directly drives the pulley transmission, and a large pulley is mostly used to drive a small pulley through the radius difference between the large and small pulleys to increase the speed. In order to increase the speed, the diameter of the small pulley will be set too small, resulting in insufficient friction between the transmission belt, causing slippage between the belt and the pulley, making the pulley transmission device prone to heat and damage, and the fan speed is not enough, so that the negative pressure of the seeding drum is too small, affecting the seeding effect. Utility Model Content

[0004] The present application proposes a fan transmission device for a precision seeding machine, which can be used to improve the stability of the fan speed-increasing transmission and avoid the insufficient fan speed affecting the seeding effect of the seeding drum.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fan transmission device for a precision seeding machine includes a fan, wherein the fan is connected to a mounting frame via a base, a support plate is arranged in the mounting frame, a fixed cavity is arranged at the bottom of the mounting frame, a gearbox is installed in the fixed cavity, an input end of the gearbox is connected to a transmission shaft, an output end of the gearbox is connected to a second pulley, the second pulley is connected to a first pulley through a belt transmission, and the first pulley is connected to a driving shaft of the fan.

[0007] Preferably, the embodiment of the present application also discloses that a plurality of mounting holes are provided on the support plate.

[0008] In one embodiment of the present application, the two sides of the bottom of the fixed cavity are respectively connected to the installation sleeves, the lower parts of the two installation sleeves are connected to the fixing pipes, the installation sleeves and the fixing pipes are both horizontally arranged, and the installation sleeves are perpendicular to the fixing pipes.

[0009] In one embodiment of the present application, a support leg is connected to the bottom of the fixing cavity, a groove is formed at the bottom end of the support leg, and the groove is clamped on the top of the fixing tube.

[0010] In one embodiment of the present application, a plurality of positioning holes are formed on the side wall of the fixed tube.

[0011] In one embodiment of the present application, a plurality of belt grooves are provided on the outer circumferences of the first pulley and the second pulley.

[0012] In one embodiment of the present application, protective covers are provided on the outer sides of the first pulley and the second pulley.

[0013] In one embodiment of the present application, one end of the mounting sleeve is connected to a fixed blade.

[0014] In summary, the technical solution proposed in the present application includes the following beneficial technical effects: the present application drives the input end of the gearbox to rotate through the transmission shaft, and after the gearbox is accelerated, the output end of the gearbox drives the second pulley to rotate faster, and the second pulley drives the first pulley to rotate through the belt, thereby driving the fan to operate, and the gearbox accelerates the rotation of the pulley. The transmission efficiency of the gearbox is high, and the kinetic energy input by the transmission shaft can be better utilized. Compared with the prior art in which the speed is increased by the radius difference between large and small pulleys, the present application increases the speed of the rotating shaft through the gearbox, which can ensure the stability of the transmission and avoid the pulley being too small so that the friction of the transmission belt is insufficient, causing slippage between the belt and the pulley, which is beneficial to improving the stability of the transmission and avoiding the insufficient speed of the fan affecting the sowing effect of the sowing drum; in addition, a support plate is provided in the mounting frame, and the support plate is used to improve the strength of the mounting frame, which is beneficial to improving the stability of the fan during operation, that is, the present application improves the stability of the transmission device for the fan speed increase transmission, and avoids the insufficient speed of the fan affecting the sowing effect of the sowing drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A front view structural diagram of a fan transmission device for a precision seeding machine provided in one embodiment of the present application;

[0017] Figure 2 A schematic diagram of the side view of the fan transmission device of a precision seeding machine provided in one embodiment of the present application;

[0018] Figure 3 A schematic diagram of a top view of a fan transmission device for a precision seeding machine provided in one embodiment of the present application;

[0019] Figure 4A schematic diagram of the three-dimensional structure of a fan transmission device for a precision seeding machine provided in one embodiment of the present application;

[0020] Figure 5 A schematic diagram of the three-dimensional structure of a fan transmission device for a precision seeding machine provided in one embodiment of the present application;

[0021] Figure 6 A schematic diagram of the three-dimensional structure of a fan transmission device for a precision seeding machine provided in one embodiment of the present application;

[0022] In the picture: fan-1;

[0023] Base - 2;

[0024] Mounting frame-3, support plate-31, mounting hole-311;

[0025] Fixed cavity - 4;

[0026] Gearbox-5, transmission shaft-51, second pulley-52, belt groove-521, first pulley-53, protective cover-531, support leg-54, groove-541;

[0027] Install the casing-6, fix the blades-61;

[0028] Fixing tube-7, positioning hole-71. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0030] It should be noted that in the description of the present application, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application 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 application.

[0031] The terms "installed", "connected" and "connected" in this application 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; 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 this application can be understood by specific circumstances.

[0032] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0033] This embodiment provides a precision seeding machine fan transmission device, see Figure 1-Figure 6 As shown, it includes a fan 1, which is connected to a mounting frame 3 through a base 2, a support plate 31 is arranged in the mounting frame 3, a fixed cavity 4 is arranged at the bottom of the mounting frame 3, a gearbox 5 is installed in the fixed cavity 4, an input end of the gearbox 5 is connected to a transmission shaft 51, an output end of the gearbox 5 is connected to a second pulley 52, the second pulley 52 is connected to a first pulley 53 through a belt, and the first pulley 53 is connected to the driving shaft of the fan 1.

[0034] In the above embodiment, the input end of the gearbox 5 is connected to the transmission shaft 51, and the output end of the gearbox 5 is connected to the second pulley 52. ​​The transmission shaft 51 drives the input end of the gearbox 5 to rotate. After the gearbox 5 is accelerated, the output end of the gearbox 5 drives the second pulley 52 to accelerate the rotation. The second pulley 52 is connected to the first pulley 53 through a belt. The second pulley 52 drives the first pulley 53 to rotate through a belt. The first pulley 53 is connected to the driving shaft of the fan 1, and then drives the fan 1 to operate. The rotation of the pulley is accelerated by the gearbox 5, so that the transmission efficiency of the gearbox 5 is higher, and the kinetic energy input by the transmission shaft 51 can be better utilized. Compared with the prior art in which the speed is increased by the difference in radius of the large and small pulleys, the present application increases the speed of the rotating shaft by the gearbox 5, which can ensure the stability of the transmission, avoid the pulley being set too small so that the friction of the transmission belt is insufficient, and cause slippage between the belt and the pulley, which is beneficial to improving the stability of the transmission and avoiding the fan 1 speed being insufficient to affect the sowing effect of the sowing drum.

[0035] In addition, a support plate 31 is provided in the mounting frame 3 , and the support plate is used to increase the strength of the mounting frame 3 , which is beneficial to improving the stability of the fan 1 during operation.

[0036] In one embodiment of the present application, see Figure 3 and Figure 6 As shown, the support plate 31 is provided with a plurality of mounting holes 311 .

[0037] In the above embodiment, in actual use, the transmission device is used in conjunction with an agricultural machine or a four-wheel vehicle, and the support plate 31 is installed in conjunction with the fixed connector of the agricultural machine through the mounting hole 311. In addition, the installation hole 311 can reduce the weight of the support plate 31, reduce the consumption of raw materials, and reduce the manufacturing cost.

[0038] In one embodiment of the present application, refer to Figure 1 and Figure 4 As shown, the two sides of the bottom of the fixing cavity 4 are respectively connected to the mounting sleeves 6, and the lower parts of the two mounting sleeves 6 are connected to the fixing pipes 7. The mounting sleeves 6 and the fixing pipes 7 are both horizontally arranged, and the mounting sleeves 6 and the fixing pipes 7 are perpendicular.

[0039] In the above embodiment, the two sides of the bottom of the fixed cavity 4 are respectively supported and connected with the mounting sleeves 6, and the lower parts of the two mounting sleeves 6 are connected with the fixing pipes 7. The mounting sleeves 6 and the fixing pipes 7 are fixedly matched to fix the transmission device on the precision seeder and the agricultural machinery, thereby increasing the adaptability of the transmission device. The mounting sleeves 6 and the fixing pipes 7 are horizontally arranged to keep the fixed cavity 4 horizontal, prevent the fixed cavity 4 from tilting, and maintain the horizontal operation of the transmission device. The mounting sleeves 6 and the fixing pipes 7 are perpendicular to each other, which can provide support for the transmission device on the plane and improve the stability of the transmission device.

[0040] In one embodiment of the present application, see Figure 4 and Figure 6 As shown, a leg 54 is connected to the bottom of the fixing cavity 4, and a groove 541 is formed at the bottom of the leg 54. The groove 541 is clamped on the top of the fixing tube 7. Optionally, there may be two legs 54.

[0041] In the above embodiment, the support leg 54 connected to the bottom of the fixed cavity 4 is arranged between the bottom of the fixed cavity 4 and the top of the fixed tube 7. The support leg 54 supports the fixed cavity 4, increases the support points at the bottom of the fixed cavity 4, and is beneficial to improving the stability of the fixed cavity 4, thereby improving the transmission stability of the gearbox 5 in the fixed cavity 4.

[0042] In one embodiment of the present application, see Figure 3 As shown, a plurality of positioning holes 71 are formed on the side wall of the fixing tube 7 .

[0043] In the above embodiment, a plurality of positioning holes 71 are provided on the side wall of the fixing pipe 7 , which can be used to adapt to different installation environments and is beneficial to improving the adaptability of the installation of the fixing pipe 7 .

[0044] In one embodiment of the present application, see Figure 2As shown, a plurality of belt grooves 521 are provided on the outer circumference of the first belt pulley 53 and the second belt pulley 52 .

[0045] In the above embodiment, multiple belt grooves 521 can be mounted with multiple transmission belts, which can increase the transmission contact area between the first pulley 53 and the second pulley 52, prevent slipping during belt transmission, and help improve transmission stability.

[0046] In one embodiment of the present application, see Figure 5 As shown, a protective cover 531 is provided on the outer side of the first pulley 53 and the second pulley 52 .

[0047] In the above embodiment, the external protective cover 531 of the first pulley 53 and the second pulley 52 can prevent external debris from contacting the transmission wheel and causing the transmission wheel to get stuck, thereby reducing the transmission jamming failure of the transmission device.

[0048] In one embodiment of the present application, see Figure 4 and Figure 5 As shown, one end of the mounting sleeve 6 is connected to a fixed blade 61 .

[0049] In the above embodiment, the fixed blade 61 is arranged in a bent shape, and the shape of the bent fixed blade 61 can be processed and customized according to actual needs to meet the installation requirements of the transmission device and different mechanical equipment, which is beneficial to improving the adaptability of the transmission device installation.

[0050] In the actual use of this application: the transmission shaft 51 is connected to the engine output end of the agricultural machinery, the transmission shaft 51 drives the input end of the gearbox 5 to rotate, and after the gearbox 5 is accelerated, the output end of the gearbox 5 drives the second pulley 52 to accelerate the rotation, and the second pulley 52 drives the first pulley 53 to rotate through the belt, thereby driving the fan 1 to operate, and a support plate 31 is arranged in the mounting frame 3, and the two sides of the bottom of the fixed cavity 4 are respectively supported and connected with the mounting sleeves 6, and the lower parts of the two mounting sleeves 6 are connected with the fixing pipes 7, and the mounting sleeves 6 and the fixing pipes 7 are fixedly matched for The transmission device is fixedly installed on the precision seeder and the agricultural machinery, which increases the adaptability of the transmission device. The mounting sleeve 6 and the fixed tube 7 are horizontally arranged, and the mounting sleeve 6 and the fixed tube 7 are perpendicular to each other, which can provide plane support for the transmission device. The support legs 54 connected to the bottom of the fixed cavity 4 are arranged between the bottom of the fixed cavity 4 and the top of the fixed tube 7. The support legs 54 support the fixed cavity 4, increase the support points at the bottom of the fixed cavity 4, and are beneficial to improving the stability of the fan 1 during operation. The mounting sleeve 6 and the fixed tube 7 are used to fix the transmission device on the precision seeder and the agricultural machinery.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A fan transmission device for a precision seeding machine, characterized in that: The invention comprises a fan (1), wherein the fan (1) is connected to a mounting frame (3) via a base (2), a support plate (31) is arranged in the mounting frame (3), a fixing cavity (4) is arranged at the bottom of the mounting frame (3), a gearbox (5) is arranged in the fixing cavity (4), an input end of the gearbox (5) is connected to a transmission shaft (51), an output end of the gearbox (5) is connected to a second pulley (52), the second pulley (52) is connected to a first pulley (53) via a belt, the first pulley (53) is connected to the driving shaft of the fan (1), a plurality of mounting holes (311) are provided on the support plate (31), and protective covers (531) are arranged on the outer sides of the first pulley (53) and the second pulley (52).

2. The fan transmission device of the precision seeding machine according to claim 1, characterized in that: The two sides of the bottom of the fixing cavity (4) are respectively connected to the mounting sleeves (6), the lower parts of the two mounting sleeves (6) are connected to the fixing pipes (7), the mounting sleeves (6) and the fixing pipes (7) are both arranged horizontally, and the mounting sleeves (6) and the fixing pipes (7) are perpendicular to each other.

3. The fan transmission device of the precision seeding machine according to claim 2, characterized in that: The bottom of the fixing cavity (4) is connected to a support leg (54), the bottom end of the support leg (54) is provided with a groove (541), and the groove (541) is clamped on the top of the fixing tube (7).

4. The fan transmission device of the precision seeding machine according to claim 2, characterized in that: The side wall of the fixing tube (7) is provided with a plurality of positioning holes (71).

5. The fan transmission device of the precision seeding machine according to claim 1, characterized in that: The first belt pulley (53) and the second belt pulley (52) are provided with a plurality of belt grooves (521) on their outer circumferences.

6. The fan transmission device of the precision seeding machine according to any one of claims 2 to 4, characterized in that: One end of the installation sleeve (6) is connected to a fixed blade (61).

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