A device for limiting and cutting garlic roots and onion roots

Abstract

A garlic root and onion root limit cutting device. The device has several working units, and each working unit consists of two garlic head clamping transmission chains, two flexible strips, two disk root cutting knives, and a garlic root limit transmission belt with pawls. The two garlic head clamping transmission chains are arranged in parallel and located in the same plane. The bottom surface of the bottom side chain plate is equipped with flexible strips, and below the flexible strips are successively provided with: two meshing disk root cutting knives and a garlic root limit transmission belt with pawls. The garlic head clamping transmission chains, the disk root cutting knives, and the garlic root limit transmission belt are parallel to each other from top to bottom. The device is used in conjunction with a garlic and onion combined harvester, which can accurately and thoroughly cut off garlic roots and onion roots, thus completely replacing manual labor, greatly improving production efficiency, and liberating garlic farmers from hard and tedious labor.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and particularly relates to a device for limiting and cutting garlic roots and onion roots. Background Art

[0002] China is a major producer, consumer and exporter of garlic. However, for a long time, garlic harvesting mainly relies on manual labor, which has high labor intensity, low efficiency and high cost, and the technology is very backward, greatly affecting the development of the garlic industry.

[0003] In the late 1960s, Western developed countries achieved mechanized garlic harvesting. There are mainly two types of harvesting machines: the sectional harvester represented by the United States and Canada, which uses different tools to complete three processes of garlic seedling harvesting, garlic bulb plowing and laying, and garlic bulb picking; the garlic combined harvester of the cutting-seedling type represented by France and Spain, which can complete the shoveling, conveying, cutting of garlic seedlings and collection of garlic bulbs at one time.

[0004] Obviously, the garlic combined harvester of the cutting-seedling type represented by France and Spain is more efficient, advanced and reliable, does not damage the garlic bulbs, and at the same time avoids the garlic bulbs being damaged by rain before they can be picked up after being laid. The significant technical features of this cutting-seedling type garlic combined harvester are: there is a liftable working frame that extends backward with a lower front and a higher rear, a garlic seedling clamping conveyor belt is installed on the working frame, a soil digging shovel is installed at the bottom of the front end of the working frame, two garlic bulb clamping conveyor belts are installed below the middle section of the garlic seedling clamping conveyor belt, and a cutting-seedling knife is installed above it; its working process is: the soil digging shovel shovels up the garlic bulbs, the garlic seedling clamping conveyor belt clamps the garlic seedlings and conveys them backward, then the garlic bulb clamping conveyor belt clamps the garlic bulbs and conveys them backward, and finally the cutting-seedling knife cuts off the garlic bulbs. This garlic harvester has high harvesting efficiency, but it can only cut garlic seedlings and cannot cut garlic roots. It needs to be cut manually before it can meet the requirements of commercial garlic, and the remaining follow-up workload is still very heavy and arduous, and it does not fully replace manual labor.

[0005] Currently, some cutting-seedling type garlic combined harvesters and patent applications have also emerged in China, but they all stay on the technical basis of the cutting-seedling type garlic combined harvester represented by France and Spain, without substantial breakthroughs and progress. Summary of the Invention

[0006] In order to make up for the deficiencies of the existing technology, the present invention provides a device for limiting and cutting garlic roots and onion roots, which can accurately limit the position of garlic roots and precisely cut garlic roots. When grafted with the existing cutting-seedling type garlic combined harvester, it can improve and perfect the performance of the garlic combined harvester, fully replace manual labor, and thus liberate garlic farmers from tedious labor.

[0007] The technical solution adopted by the present invention is: a device for limiting the removal of garlic roots and onion roots, which has several working units, each of which is composed of two garlic head positioning transmission chains, two flexible strips, two disc root cutters and a garlic root limiting transmission belt. The two garlic head positioning transmission chains are opposite to each other, parallel and located in the same plane, and a gap greater than the diameter of the garlic vine rod and less than the diameter of the garlic head is provided between the adjacent edges of the two garlic head positioning transmission chains; the chain plates at the bottom edges of the two garlic head positioning transmission chains are widened chain plates, and the flexible strips are installed on the bottom surface of the widened chain plates. The flexible strips are a flexible material and can be made of hollow grid-shaped flexible rubber strips, array-distributed flexible springs and other materials; two interlocking disc root cutters are installed under the flexible strips, and a garlic root limiting transmission belt with ratchet is provided under the disc root cutters. The ratchet is a small needle-shaped cylinder with the same length of the ratchet. The disc root cutter is close to the top of the ratchet, and the distance between the plane formed by the top of the ratchet close to the flexible strip and the flexible strip is less than the longitudinal diameter of the garlic head. The garlic positioning transmission chain, the disc root cutting knife and the garlic root limiting transmission belt are parallel to each other at the top, the middle and the bottom. The three are respectively installed on the frame and are connected to the power source through the transmission mechanism.

[0008] The left front end of the garlic root and onion root limiting cutting device is the garlic entrance, which is located directly below the garlic vine clamping conveyor belt of the garlic harvester and docked with it. It is the entrance that the garlic must pass through. The garlic enters the conveying channel surrounded by the garlic vine clamping conveyor chain and the garlic root limiting conveyor belt through the entrance, and the bottom of the garlic is supported and supported by the ratchet that passes through the garlic root; the upper garlic vine clamping conveyor chain and the lower garlic root limiting conveyor belt cooperate to clamp the garlic and convey it backward. Since the thickness of the disc root cutter is less than 1 mm and it is close to the top of the ratchet, the garlic is separated above the disc root cutter and the garlic root is separated below the disc root cutter. When the garlic passes through the engaged disc root cutter, the garlic root is accurately and thoroughly cut off. The device is used in conjunction with a vine cutting garlic harvester to improve and enhance the performance of the harvester.

[0009] The beneficial effects brought by the present invention are: through the coordinated cooperation of various components, accurate and thorough removal of garlic roots is achieved, manual labor is completely replaced, and garlic farmers are liberated from hard and tedious labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a front view of a device for limiting removal of garlic roots and onion roots;

[0011] Figure 2 It is a left view of the limited cutting device for garlic roots and onion roots;

[0012] Figure 3 It is a top view of a device for limiting removal of garlic roots and onion roots;

[0013] Figure 4 It is a top view of the garlic root and onion root limiting cutting device after the garlic head blocking transmission chain is removed.

[0014] In the figure: 1 - Garlic head clamping transmission chain; 2 - Flexible strip; 3 - Garlic root limiting transmission belt; 4 - Disc root cutter; 5 - Widened chain plate; 6 - Transmission belt pulley; 7 - Pawl; 8 - Transmission sprocket Specific implementation mode

[0015] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0016] As shown in Figure 1 、 Figure 2 The garlic root and onion root limiting and cutting device has several working units. Each working unit is composed of two garlic head clamping transmission chains 1, two flexible strips 2, two disc root cutters 4, and one garlic root limiting transmission belt 3.

[0017] As shown in Figure 1 、 Figure 3 The two garlic head clamping transmission chains 1 are opposite to each other left and right, arranged in parallel, and the loop planes of their operations are in the same plane. There is a gap between their adjacent sides that is larger than the diameter of the garlic seedling stem and smaller than the diameter of the garlic head for clamping the garlic head; the bottom chain plates of the two garlic head clamping transmission chains 1 are widened chain plates 5 for installing the flexible strips 2; the two garlic head clamping transmission chains 1 are respectively installed on two transmission sprockets 8, and the transmission sprockets 8 are installed on the frame (not shown for the sake of simplicity of the drawing), and the transmission sprockets 8 are connected to the power source (not shown for the sake of simplicity of the drawing) through a transmission mechanism.

[0018] As shown in Figure 1 The flexible strips 2 are respectively installed on the bottom surfaces of the widened chain plates of the two garlic head clamping transmission chains 1. The flexible strips 2 are made of a flexible material and are used to cooperate with the garlic root limiting transmission belt 3 below to clamp and convey the garlic head; the flexible strips 2 can be made of materials such as hollow grid-shaped flexible rubber strips and flexural springs distributed in an array, and the flexible strips 2 are continuously closed.

[0019] As shown in Figure 3 、 Figure 4 The two disc root cutters 4 are respectively fixed on the cutter shaft (not shown for the sake of simplicity of the drawing), and the cutter shaft is connected to the power source through a transmission mechanism. The two disc root cutters 4 are in a biting state on the inner side, and the thickness of the disc root cutter 4 is less than 1 mm.

[0020] As shown in Figure 1 、 Figure 2 The disc root cutter 4 is close to the top of the pawl 7, aiming to only cut the garlic root without damaging the garlic head.

[0021] As shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As described, the garlic root limiting conveyor belt 3 is provided with ratchets 7 in an array for receiving and supporting the garlic heads. The garlic root limiting conveyor belt 3 is installed on two transmission pulleys 6, and the transmission pulleys 6 are connected to the power source through a transmission mechanism.

[0022] like Figure 1 , Figure 2 As shown, the ratchet 7 is a small needle-shaped cylinder with a uniform length. One end of the ratchet 7 is fixed on the garlic root limiting conveyor belt 3, and the other end (here referred to as the top end) is used to receive and support the garlic to avoid damaging the garlic. A rubber head needs to be worn on the top of the ratchet 7.

[0023] like Figure 1 , Figure 2 As shown, the positional relationship of the various components of the garlic root and onion root limiting and cutting device is: the garlic positioning transmission chain 1, the disc root cutting knife 4, and the garlic root limiting conveyor belt 3 are parallel to each other in the upper, middle and lower parts; the bottom surfaces of the widened chain plates 5 at the bottom edges of the two garlic positioning transmission chains 1 are installed with flexible strips 2, two disc root cutting knives 4 are installed below the flexible strips 2, and a garlic root limiting conveyor belt 3 is installed below them, the disc root cutting knife 4 is close to the top of the ratchet 7 on the garlic root limiting conveyor belt, and the distance between the plane formed by the top of the garlic root ratchet close to the side of the flexible strip 2 and the flexible strip is smaller than the longitudinal diameter of the garlic.

[0024] The garlic root and onion root limiting cutting device is matched with a garlic and onion combine harvester. It is located in the harvester just below two garlic vine clamping conveyor belts (not shown for simplicity of drawing). Its left front end faces the two garlic vine clamping conveyor belts and docks with them, so that the garlic heads passing through here are inserted into the channel formed by the two garlic head clamping conveyor chains 1 and the garlic root limiting conveyor belt 3. The ratchet 7 on the garlic root limiting conveyor belt 3 just below the channel passes through the garlic root net at the bottom of the garlic head and reaches the bottom surface of the garlic head to receive and support the garlic head; the upper garlic head clamping conveyor chain 1 and the flexible strip 2 clamp the garlic head, and the lower garlic root limiting conveyor belt 3 clamps the garlic head. The conveyor belt 3 supports the garlic, and the flexible strip 2 and the garlic root limiting conveyor belt 3 clamp the garlic and convey it backward; because the disc root cutter 4 is close to the top of the ratchet 7, its thickness is less than 1 mm, and because all the bottom surfaces of the garlic passing here are supported by the top of the ratchet 7, the plane formed by the top of the ratchet 7 and the disc root cutter 4 fitted thereto separate the garlic from the garlic root, the garlic is separated above the disc root cutter 4, and the garlic root is separated below the disc root cutter 4. When the garlic passes through the engaged disc root cutter 4, the garlic root is accurately and thoroughly cut off, and the garlic continues to be conveyed backward and sent into the garlic bin of the harvester.

[0025] When harvesting onions, the onion roots can be accurately removed by adjusting the distance between the garlic head positioning conveyor chain 1 and the distance between the garlic root limiting conveyor belt 3 and the flexible strip 2 accordingly.

Claims

1. A garlic root limiting cutting device, which has several working units. Each working unit has two garlic head clamping and conveying chains (1). The two garlic head clamping and conveying chains (1) are arranged in parallel side by side in the same plane. Characterized in that: A gap larger than the diameter of the garlic seedling stem and smaller than the diameter of the garlic head is provided between the two garlic head clamping and conveying chains (1). A flexible strip (2) is installed on the bottom surface of the chain plate on the bottom side of the garlic head clamping and conveying chain (1). The flexible strip (2) is made of a flexible material and can be made of a hollow grid-shaped flexible rubber strip or a flexible spring distributed in an array. Below the flexible strip (2), two meshing disc root cutting knives (4) and a garlic root limiting conveying belt (3) are installed in sequence. The garlic root limiting conveying belt (3) is distributed with pawls (7) in an array. The pawls (7) are needle-shaped small cylinders with the same length. The garlic head clamping and conveying chain (1), the disc root cutting knife (4) and the garlic root limiting conveying belt (3) are parallel to each other from top to bottom. They are all arranged on the frame and are respectively connected to the power source through a transmission mechanism.

2. The garlic root limiting cutting device according to claim 1, Characterized in that: The distance between the plane formed by the top end of the pawl (7) on the side close to the flexible strip (2) and the flexible strip (2) is smaller than the longitudinal diameter of the garlic head.

3. The garlic root limiting cutting device according to claim 1, Characterized in that: The disc root cutting knife (4) is installed close to the top end of the pawl (7).

4. A garlic harvester, Characterized in that: It is equipped with the garlic root limiting cutting device according to any one of claims 1 to 3 above.

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