Novel transmission structure of stem cutting mechanism of garlic harvester

Abstract

The utility model belongs to the technical field of garlic harvesters, and particularly relates to a novel transmission structure of a stem cutting mechanism of a garlic harvester, which comprises a stem cutting mechanism, the stem cutting mechanism comprises a plurality of stem cutting knives, a stem cutting rotating shaft and an indirect transmission mechanism, the indirect transmission mechanism is used for transmitting power to the stem cutting rotating shaft, and the stem cutting knives are arranged on the stem cutting rotating shaft. The utility model provides a novel transmission structure of the stem cutting mechanism of the garlic harvester, which can be used for conveniently adjusting the height of the stem cutting mechanism, and has the characteristics of convenience in operation and adjustment and the like, and the power transmission connection point is positioned below the stem cutting knife and does not hinder the height adjustment of the stem cutting knife above the stem cutting knife.

Description

Technical Field

[0001] This utility model belongs to the field of garlic harvester technology, and specifically relates to a novel transmission structure for the stem-cutting mechanism of a garlic harvester. Background Technology

[0002] Garlic combine harvesters are used to harvest garlic. Currently, the general structure of a garlic harvester typically includes a feeding unit, a soil-shoveling unit, a lifting and conveying unit, a stem-cutting unit, a root-cutting unit, and a transmission unit.

[0003] The lifting and conveying unit generally includes an upper conveying unit and a lower conveying unit. The stem-cutting unit includes several stem-cutting blades and a stem-cutting rotating shaft. In existing structures, the upper conveying unit is generally directly connected to the stem-cutting unit via a universal joint, that is, directly connected to the top of the stem-cutting rotating shaft via the universal joint. This structural form has a drawback, namely, it makes it inconvenient to adjust the height of the stem-cutting blades. In existing technologies, the height of the stem-cutting blades is generally adjusted by adding or removing shims. However, since the universal joint is directly connected to the top of the stem-cutting rotating shaft, the universal joint must be removed in order to remove the stem-cutting blades and increase or decrease the number of shims below the stem-cutting blades to complete the height adjustment. Therefore, this method is inconvenient to operate and time-consuming and labor-intensive. Utility Model Content

[0004] This utility model provides a novel transmission structure for the stem-cutting mechanism of a garlic harvester, which can solve the problems pointed out in the background art.

[0005] A novel transmission structure for a garlic harvester's stem-cutting mechanism includes a stem-cutting mechanism comprising several stem-cutting blades, a stem-cutting rotating shaft, and an indirect transmission mechanism. The indirect transmission mechanism is used to transmit power to the stem-cutting rotating shaft, and the power transmission connection point is located below the stem-cutting blades so as not to obstruct the height adjustment of the upper stem-cutting blades.

[0006] Preferably, the indirect transmission mechanism includes a power transmission shaft, with a first transmission gear and a second transmission gear respectively provided at both ends of the power transmission shaft. The first transmission gear is the power input end, and the second transmission gear is connected to the stem cutting rotation shaft.

[0007] Preferably, the second transmission gear is connected to the third transmission gear, and the third transmission gear is connected to the stem-cutting rotating shaft via a stem-cutting transmission chain.

[0008] Preferably, the first transmission gear, the second transmission gear, and the third transmission gear are all bevel gears.

[0009] Beneficial effects: This utility model provides a novel transmission structure for the stem-cutting mechanism of a garlic harvester, which facilitates the height adjustment of the stem-cutting mechanism and features convenient operation and easy adjustment.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a structural schematic view of the present application,

[0011] Figure 2 is a schematic view of the overall installation of the present application Figure One ,

[0012] Figure 3 is a schematic view of the overall installation of the present application Figure Two ,

[0013] BRIEF DESCRIPTION OF DRAWINGS:

[0014] Reference numerals in the drawing: cutting knife 1; cutting knife rotating shaft 2; power transmission shaft 31; first transmission gear 32; second transmission gear 33; third transmission gear 34; first bearing assembly 35; second bearing assembly 36; cutting knife transmission chain 37; upper layer conveying unit 4; rotating shaft 41; fourth transmission gear 42; lower layer conveying unit 5; lower layer conveying chain 51. DETAILED DESCRIPTION

[0015] One specific embodiment of the present application will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of protection of the present application is not limited by the specific embodiment.

[0016] Example 1:

[0017] As Figures 1-3 shown, the novel transmission structure of the garlic harvester cutting mechanism provided by the embodiments of the present application includes a cutting mechanism, the cutting mechanism includes a plurality of cutting knives 1, a cutting knife rotating shaft 2 and an indirect transmission mechanism, the indirect transmission mechanism is used to transmit power to the cutting knife rotating shaft 2, and the power transmission connection point is located below the cutting knife 1, so as not to hinder the height adjustment of the cutting knife 1 above.

[0018] Specifically, the indirect transmission mechanism includes a power transmission shaft 31, both ends of the power transmission shaft 31 are respectively provided with a first transmission gear 32 and a second transmission gear 33, the first transmission gear 32 is a power input end, the second transmission gear 33 is in transmission connection with the cutting knife rotating shaft 2, the second transmission gear 33 is in transmission connection with a third transmission gear 34, the third transmission gear 34 is in transmission connection with the cutting knife rotating shaft 2 through a cutting knife transmission chain 37, and the first transmission gear 32, the second transmission gear 33 and the third transmission gear 34 are all bevel gears.

[0019] The design principle or operation mode of the utility model discloses: power transmission shaft 31 is rotatably connected on the bottom of upper layer conveying unit 4 through first bearing assembly 35, the bottom of the rotating shaft 41 of upper layer conveying unit 4 has fourth transmission gear 42, it is also bevel gear, fourth transmission gear 42 is transmission connection with first transmission gear 32, realizes power input, third transmission gear 34 is rotatably connected on the upper portion of lower layer conveying unit 5 through second bearing assembly 36, it is transmission connection with cutting stem rotating shaft 2 through cutting stem transmission chain 37, power transmission connecting point is located below cutting stem cutter 1, makes it not to hinder the height adjustment of cutting stem cutter 1 in the upper, and the adjustment mode is same with traditional cutting stem cutter and cutting stubble cutter traditional mode, removes the fixed bolt of cutting stem cutter 1 upper end, can take out cutting stem cutter upwards, after taking out, realizes cutting stem cutter 1 height adjustment by increasing or reducing the number of gasket, this adjustment mode is the most common adjustment mode of the person skilled in the art, therefore the drawing has not carried out corresponding display, the lower end of cutting stem rotating shaft 2 is connected with the lower layer conveying chain 51 of lower layer conveying unit 5.

[0020] The above disclosed is only several specific embodiments of the utility model, but, the utility model embodiment is not limited to this, any person skilled in the art can think of the change and should fall into the protection scope of the utility model.

Claims

1. A new type of transmission structure of a stem cutting mechanism of a garlic harvester, comprising a stem cutting mechanism, characterized in that: The cutting mechanism comprises a plurality of cutting knives (1), a cutting rotary shaft (2) and an indirect transmission mechanism for transmitting power to the cutting rotary shaft (2), and the power transmission connection point is located below the cutting knives (1) so as not to hinder the height adjustment of the upper cutting knives (1).

2. A new transmission structure of the stem cutting mechanism of a garlic harvester according to claim 1, characterized in that: The indirect transmission mechanism comprises a power transmission shaft (31), the two ends of the power transmission shaft (31) are respectively provided with a first transmission gear (32) and a second transmission gear (33), the first transmission gear (32) is a power input end, and the second transmission gear (33) is in transmission connection with the cutting rotary shaft (2).

3. A new transmission structure of the stem cutting mechanism of a garlic harvester according to claim 2, characterized in that: The second transmission gear (33) is in transmission connection with a third transmission gear (34), and the third transmission gear (34) is in transmission connection with the cutting rotary shaft (2) through a cutting transmission chain (37).

4. The new transmission structure of the stem cutting mechanism of a garlic harvester according to claim 3, characterized in that: The first transmission gear (32), the second transmission gear (33) and the third transmission gear (34) are all bevel gears.

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