Variable pitch spindle-shaped tassel-supporting device for carrot combine harvester

Abstract

A variable pitch spindle-shaped tassel-supporting device for a carrot combine harvester comprises a power device and a tassel-supporting base beam, a tassel-supporting guide plate is installed on the tassel-supporting guide plate, and a spindle-shaped tassel-supporting roller assembly is installed on the tassel-supporting guide plate; the spindle-shaped tassel-supporting roller assembly comprises a gathering and conveying variable pitch tassel-supporting roller, a tassel-discharging tassel-supporting roller and a reversing transmission gear set, and the axis of the gathering and conveying variable pitch tassel-supporting roller coincides with the axis of the tassel-discharging tassel-supporting roller; in summary, the variable pitch spindle-shaped tassel-supporting device for a carrot combine harvester of the present invention realizes the gathering of carrot tassels by a variable diameter roller body with variable diameter and variable pitch, and realizes the smooth transportation of carrot tassels by an equal diameter roller body with equal diameter and equal pitch, and the tassel-discharging tassel-supporting roller has no threads and reverses, so as to realize rapid tassel discharging and realize carrot combine harvester tassel-supporting operation; compared with traditional follow-up tassel-supporting devices, the present invention can effectively avoid the tassel entanglement, tassel damage and tassel missing phenomena that are prone to occur in follow-up, double roller and finger-type tassel-supporting devices, and effectively improve the harvest rate and cutting rate of the carrot combine harvester.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural machinery, and particularly relates to a variable pitch spindle-shaped carrot guiding device for a carrot combine harvester. Background Art

[0002] Efficient combined harvesting of carrots in a lodged state is of great practical significance for improving the mechanization rate of the entire process of carrot crop production. Traditional carrot combine harvesters mostly adopt follow-up type, pair-roller type and finger-type carrot guiding devices. When performing carrot guiding operations, phenomena such as carrot entanglement, carrot damage and missed guiding are likely to occur, which affects the complete carrot cutting by the rear top cutting device, and reduces the harvesting rate and cutting cleanliness of the carrot combine harvester. Summary of the Invention

[0003] The present invention aims to provide a variable pitch spindle-shaped carrot guiding device for a carrot combine harvester, and solves the technical problem that the existing carrot combine harvester is prone to phenomena such as carrot entanglement, carrot damage and missed guiding during carrot guiding operations.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A variable pitch spindle-shaped carrot guiding device for a carrot combine harvester includes a power device and a carrot guiding base beam. A carrot guiding plate is installed on the carrot guiding base beam, and a spindle-shaped carrot guiding roller assembly is installed on the carrot guiding plate.

[0006] The spindle-shaped carrot guiding roller assembly includes a gathering and conveying variable pitch carrot guiding roller, a carrot unloading and guiding roller and a reversing transmission gear set. The axes of the gathering and conveying variable pitch carrot guiding roller and the carrot unloading and guiding roller coincide. The gathering and conveying variable pitch carrot guiding roller and the carrot unloading and guiding roller can both rotate around their axes on the carrot guiding plate, and the rear end of the gathering and conveying variable pitch carrot guiding roller is connected to the front end of the carrot unloading and guiding roller in a rotating manner; the gathering and conveying variable pitch carrot guiding roller includes a variable diameter roller body and an equal diameter roller body. The outer diameter of the variable diameter roller body gradually increases from front to back. Spiral blades are arranged on the outer surfaces of the variable diameter roller body and the equal diameter roller body, and the pitch of the spiral blades on the outer surface of the variable diameter roller body gradually becomes larger from front to back.

[0007] The reversing transmission gear set is located inside the gathering and conveying variable pitch carrot guiding roller and the carrot unloading and guiding roller. The power device transmits power to the gathering and conveying variable pitch carrot guiding roller and the carrot unloading and guiding roller through the reversing transmission gear set, so that the gathering and conveying variable pitch carrot guiding roller and the carrot unloading and guiding roller rotate around their axes, and the rotating directions of the gathering and conveying variable pitch carrot guiding roller and the carrot unloading and guiding roller are opposite.

[0008] Further, the carrot guiding plate has a triangular pyramid structure, and an installation cavity is provided on the side of the carrot guiding plate for installing the spindle-shaped carrot guiding roller assembly.

[0009] Furthermore, the commutation drive gear set includes a gear carrier and a power gear shaft. The rear end of the power gear shaft is rotatably mounted on the supporting beam through a bearing. A central roller shaft is fixed inside the variable-pitch gathering and conveying carrot-top roller. The front end of the power gear shaft is inserted into the rear end of the central roller shaft, and the front end of the power gear shaft and the rear end of the central roller shaft are relatively rotatable;

[0010] The gear carrier is sleeved on the power gear shaft, and the gear carrier and the power gear shaft are relatively rotatable. An indirect bevel gear and an indirect spur gear are rotatably mounted on the gear carrier. A driving bevel gear and a driven bevel gear are arranged on the power gear shaft. The driving bevel gear is fixedly connected to the power gear shaft, the driven bevel gear is rotatably connected to the power gear shaft, the driven bevel gear is fixedly connected to the rear end of the central roller shaft through a plurality of screws, and the indirect bevel gears are meshed with both the driving bevel gear and the driven bevel gear;

[0011] A driving spur gear is also arranged on the power gear shaft. An internal gear ring is arranged on the inner wall of the carrot-top unloading and gathering roller. The indirect spur gears are meshed with both the internal gear ring and the driving spur gear;

[0012] The power device is drivingly connected to the rear end of the power gear shaft.

[0013] Furthermore, the power device includes a DC brushed motor and a reducer. The main shaft of the DC brushed motor is connected to the power input shaft of the reducer, and the power output shaft of the reducer is connected to the rear end of the power gear shaft through a coupling.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The variable-pitch spindle-shaped carrot-top gathering device of the carrot combine harvester of the present invention uses a carrot-top guide plate to lift the carrot tops. The variable-diameter roller body with variable diameter and variable pitch realizes the gathering of carrot tops, and the equal-diameter roller body with equal diameter and equal pitch realizes the stable conveying of carrot tops. The carrot-top unloading and gathering roller has no threads and rotates in the reverse direction to realize rapid unloading of carrot tops, thus realizing the carrot-top gathering operation of the carrot combine harvester; compared with the traditional follow-up carrot-top gathering device, the present invention can effectively avoid the phenomena of entanglement, damage and missed gathering that are prone to occur in the follow-up type, pair-roller type and finger-type carrot-top gathering devices, and effectively improve the harvesting rate and cutting cleanliness of the carrot combine harvester. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0016] Figure 1 is a schematic structural diagram of the variable-pitch spindle-shaped carrot-top gathering device of the carrot combine harvester of the present invention;

[0017] Figure 2 is a cross-sectional view of the variable-pitch spindle-shaped carrot-top gathering device of the carrot combine harvester of the present invention;

[0018] Figure 3 Schematic diagram for the installation of the commutation drive gear set

[0019] Figure 4 Figure showing the usage state of the variable-pitch spindle-shaped carrot guiding device of the present invention Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] The present invention will be further described in detail below with reference to the embodiments.

[0022] As Figures 1-4 shown, a specific embodiment of the variable-pitch spindle-shaped carrot guiding device of the carrot combine harvester provided by the present invention is as follows:

[0023] The variable-pitch spindle-shaped carrot guiding device of the carrot combine harvester includes a power device and a guiding base beam 1. A guiding plate 2 is installed on the guiding base beam 1. The guiding plate 2 has a triangular pyramid structure. An installation cavity is provided on the side of the guiding plate 2 for installing the spindle-shaped carrot guiding roller assembly 3;

[0024] The spindle-shaped carrot guiding roller assembly 3 includes a gathering and conveying variable-pitch carrot guiding roller 4, a carrot unloading guiding roller 5, and a commutation drive gear set 23. The axes of the gathering and conveying variable-pitch carrot guiding roller 4 and the carrot unloading guiding roller 5 coincide. Both the gathering and conveying variable-pitch carrot guiding roller 4 and the carrot unloading guiding roller 5 can rotate around their axes on the guiding plate 2, and the rear end of the gathering and conveying variable-pitch carrot guiding roller 4 is connected to the front end of the carrot unloading guiding roller 5 in a rotational manner; the gathering and conveying variable-pitch carrot guiding roller 4 includes a variable-diameter roller body 6 and an equal-diameter roller body 7. The outer diameter of the variable-diameter roller body 6 gradually increases from front to back. Spiral blades 22 are provided on the outer surfaces of both the variable-diameter roller body 6 and the equal-diameter roller body 7, and the pitch of the spiral blades 22 on the outer surface of the variable-diameter roller body 6 gradually increases from front to back;

[0025] The commutation drive gear set 23 is located inside the gathering and conveying variable-pitch carrot guiding roller 4 and the carrot unloading guiding roller 5. The power device transmits power to the gathering and conveying variable-pitch carrot guiding roller 4 and the carrot unloading guiding roller 5 through the commutation drive gear set 23, so that the gathering and conveying variable-pitch carrot guiding roller 4 and the carrot unloading guiding roller 5 rotate around their axes, and the rotation directions of the gathering and conveying variable-pitch carrot guiding roller 4 and the carrot unloading guiding roller 5 are opposite.

[0026] The reversing drive gear set 23 includes a gear carrier 8 and a power gear shaft 9. The rear end of the power gear shaft 9 is rotatably mounted on the support beam 1 through a bearing 10. A central roller shaft 11 is fixed inside the gathering and conveying variable pitch support roller 4. The front end of the power gear shaft 9 is inserted into the rear end of the central roller shaft 11, and the front end of the power gear shaft 9 and the rear end of the central roller shaft 11 rotate relative to each other;

[0027] The gear carrier 8 is sleeved on the power gear shaft 9, and the gear carrier 8 and the power gear shaft 9 can rotate relative to each other. An indirect bevel gear 12 and an indirect spur gear 13 are rotatably mounted on the gear carrier 8. A driving bevel gear 14 and a driven bevel gear 15 are provided on the power gear shaft 9. Among them, the driving bevel gear 14 is fixedly connected to the power gear shaft 9, the driven bevel gear 15 is rotatably connected to the power gear shaft 9, and the driven bevel gear 15 and the rear end of the central roller shaft 11 are fixedly connected through a plurality of screws 16. The indirect bevel gear 12 meshes with both the driving bevel gear 14 and the driven bevel gear 15;

[0028] A driving spur gear 17 is also provided on the power gear shaft 9. An internal gear ring 18 is provided on the inner wall of the unloading and supporting roller 5. The indirect spur gears 13 mesh with both the internal gear ring 18 and the driving spur gear 17.

[0029] The power device includes a DC brushed motor 19 and a reducer 20. The main shaft of the DC brushed motor 19 is connected to the power input shaft of the reducer 20, and the power output shaft of the reducer 20 is connected to the rear end of the power gear shaft 9 through a coupling 21.

[0030] Such as Figure 4As shown in the figure, the variable-pitch spindle-shaped carrot topping device of this embodiment is symmetrically installed on the machine in pairs when in use, and works together with the conveying device 100 and the opposite-top cutting 101 to complete the operations of topping, lifting, transporting, and opposite-top cutting 101 of carrots; the variable-pitch spindle-shaped carrot topping device mainly consists of a topping guide plate 2, a spindle-shaped topping roller assembly 3, a reversing transmission gear set 23, a reducer 20, a DC brush motor 19 and other components. The whole operation process is as follows: the topping guide plate 2 is close to the ground and extends into the bottom of the carrot tops. As the machine advances, the topping guide plate 2 lifts the carrot tops scattered on the ground, and makes them rise and gather upright. The carrot tops enter the spindle-shaped topping roller assembly 3 along the topping guide plate 2; the spindle-shaped topping roller assembly 3 is spindle-shaped as a whole, including a gathering and conveying variable-pitch topping roller 4, a topping and discharging roller 5 and a reversing transmission gear set 23. The gathering and conveying variable-pitch topping roller 4 is composed of a variable-diameter roller body 6 and an equal-diameter roller body 7. The outer surfaces of the variable-diameter roller body 6 and the equal-diameter roller body 7 are both provided with spiral blades 22. The outer diameter of the variable-diameter roller body 6 and the pitch of the spiral blades 22 thereon are both continuously increasing, while the outer diameter of the equal-diameter roller body 7 and the pitch of the spiral blades 22 thereon remain unchanged; the variable-diameter roller body 6 realizes the gradual gathering of the carrot tops through the gradually increasing outer diameter and pitch, avoiding the blockage phenomenon in the pitch caused by the constant radius and pitch of the traditional pair-roller topping device, and the equal-diameter roller body 7 with equal diameter and equal pitch transports the gathered carrot tops smoothly to the topping and discharging roller 5. The rotation direction of the topping and discharging roller 5 is opposite to that of the gathering and conveying variable-pitch topping roller 4, which can realize rapid topping and discharging, send the discharged carrot tops into the subsequent clamping disc for clamping, and then transport them to the rear opposite-top cutting 101 device by the conveying device 100 for cutting.

[0031] The reversing transmission gear set 23 of this embodiment is used to transmit power to the gathering and conveying variable-pitch topping roller 4 and the topping and discharging roller 5, so that the two rotate in opposite directions. The gear rack 8 is sleeved on the driving gear shaft. During the operation process, the gear rack 8 does not rotate. The whole working principle is as follows: the reducer 20 drives the driving gear shaft to rotate clockwise through the coupling 21. The driving gear shaft is provided with a driving bevel gear 14 and a driving spur gear 17. The driving spur gear 17 meshes with the indirect spur gear 13, and the indirect spur gear 13 meshes with the internal gear ring 18, so as to drive the topping and discharging roller 5 to rotate clockwise; at the same time, the driving bevel gear 14 meshes with the indirect bevel gear 12, and the indirect bevel gear 12 meshes with the driven bevel gear 15, driving the gathering and conveying variable-pitch topping roller 4 to rotate counterclockwise; the topping guide plate 2 is installed on the topping base beam 1, which is used to increase the overall operation range of the device and avoid the carrot tops winding around the topping roller for one week, thus causing the phenomenon of topping blockage.

[0032] It should be noted that in this text, terms such as "including", "comprising", or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article, or device.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A variable pitch spindle-shaped tassel-supporting device for a carrot combine harvester, characterized in that: It includes power equipment and a tassel base beam, a tassel guide plate is installed on the tassel base beam, and a spindle-shaped tassel roller assembly is installed on the tassel guide plate; The spindle-shaped tassel roller assembly includes a gathering and conveying variable pitch tassel roller, a tassel unloading tassel roller and a reversing transmission gear set. The axes of the gathering and conveying variable pitch tassel roller and the tassel unloading tassel roller coincide with each other. Both the gathering and conveying variable pitch tassel roller and the tassel unloading tassel roller can rotate around their axes on the tassel guide plate, and the rear end of the gathering and conveying variable pitch tassel roller is connected to the front end of the tassel unloading tassel roller by rotation. The gathering and conveying variable pitch tassel roller includes a variable diameter roller body and an equal diameter roller body. The outer diameter of the variable diameter roller body gradually increases from front to back. The outer surfaces of the variable diameter roller body and the equal diameter roller body are both provided with spiral blades, and the pitch of the spiral blades on the outer surface of the variable diameter roller body gradually increases from front to back. The reversing transmission gear group is located inside the gathering and conveying variable pitch roller and the unloading roller. The power equipment transmits power to the gathering and conveying variable pitch roller and the unloading roller through the reversing transmission gear group, so that the gathering and conveying variable pitch roller and the unloading roller rotate around their axes, and the rotation directions of the gathering and conveying variable pitch roller and the unloading roller are opposite.

2. The variable pitch spindle-shaped tassel-supporting device for carrot combine harvester according to claim 1, characterized in that: The tassel-supporting guide plate is a triangular pyramid structure, and a mounting cavity is opened on the side of the tassel-supporting guide plate, and the mounting cavity is used to install a spindle-shaped tassel-supporting roller assembly.

3. The variable pitch spindle-shaped tassel-supporting device for carrot combine harvester according to claim 1, characterized in that: The reversing transmission gear set includes a gear frame and a power gear shaft. The rear end of the power gear shaft is rotatably mounted on the support beam through a bearing. A central roller shaft is fixed inside the gathering and conveying variable pitch support roller. The front end of the power gear shaft is inserted into the rear end of the central roller shaft. The front end of the power gear shaft and the rear end of the central roller shaft rotate relatively. The gear frame is sleeved on the power gear shaft, and the gear frame and the power gear shaft can rotate relative to each other. An indirect bevel gear and an indirect spur gear are rotatably mounted on the gear frame. A driving bevel gear and a driven bevel gear are arranged on the power gear shaft. The driving bevel gear is fixedly connected to the power gear shaft, and the driven bevel gear is rotatably connected to the power gear shaft. The driven bevel gear is fixedly connected to the rear end of the center roller shaft by a number of screws, and the indirect bevel gears are meshed with the driving bevel gear and the driven bevel gear. A driving spur gear is also arranged on the power gear shaft, an inner gear ring is arranged on the inner wall of the tassel unloading and supporting roller, and the indirect spur gears are meshed with the inner gear ring and the driving spur gear; The power device is drivingly connected to the rear end of the power gear shaft.

4. The variable pitch spindle-shaped tassel-supporting device for carrot combine harvester according to claim 3, characterized in that: The power equipment comprises a brushed DC motor and a reducer, wherein the main shaft of the brushed DC motor is connected to the power input shaft of the reducer, and the power output shaft of the reducer is connected to the rear end of the power gear shaft through a coupling.

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