A self-propelled pickled mustard tuber harvester

Abstract

The present invention provides a self-propelled tuber harvester for mustard tubers, the harvester comprising: a walking tractor, a moving blade device, a fixed blade device, a frame and a gearbox; wherein the frame is fixed on the walking tractor; the gearbox is fixed on the frame and the walking tractor; the moving blade device is respectively connected to the frame and the gearbox for breaking the soil and loosening the roots; the fixed blade device is fixedly connected to the frame for separating the tubers of mustard tubers from their shortened stems. The self-propelled tuber harvester for mustard tubers provided by the present invention adopts a walking tractor to drive the harvesting in view of the current situation that the soil in the main production areas of mustard tubers is hard and the plots are undulating. The whole machine has a light and simple structure and strong applicability. It can ensure that the tubers of mustard tubers are completely removed, thereby improving the harvesting efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a self-propelled mustard tuber harvester. Background Art

[0002] Zhacai, also known as stem tumor mustard, belongs to the cruciferous plant. Its main forms include leaves, roots and tumor stems. Generally, the above-ground part is 60-80cm high, the underground taproot is 20-30cm long, and the whole plant generally weighs 2-4kg. Zhacai stems can be divided into two parts: shortened stems and expanded stems. The expanded stems can also be called cabbage heads. They are edible and generally weigh about 0.5kg each, and the larger ones are 1-1.5kg; the shortened stems refer to the part of the root of Zhacai that is distributed above the ground and connected to the expanded stems. The length ranges from 10mm to 50mm, and the shortened stem diameter ranges from 15-40mm.

[0003] The main production area of ​​​​pickle tuber is in the southwest of my country. The planting area is mostly hilly and mountainous, and the fields are terraced or sloped. The ground for pickle tuber cultivation is undulating and usually needs to be harvested manually. During the harvesting process, the pickle tuber goes through root cutting, collection, transportation, and leaf removal. Among them, the root cutting process directly acts on the shortened stem through the cutter to separate the tuber from the shortened stem. However, due to the extremely uneven fields and the different growth of pickle tuber ... Summary of the invention

[0004] The present invention provides a self-propelled mustard tuber harvester, which adopts a walk-behind tractor to drive the harvest in view of the current situation that the soil is hard and the land is uneven in the main mustard producing areas. The whole machine has a light and simple structure and strong applicability. It can ensure that the mustard tubers are completely removed, thereby improving the harvesting efficiency.

[0005] An embodiment of the present invention provides a self-propelled mustard tuber harvester, the harvester comprising:

[0006] A walking tractor, a moving blade device, a fixed blade device, a frame and a gearbox;

[0007] wherein the frame is fixed on the walking tractor;

[0008] The gearbox is fixed to the frame and the walking tractor;

[0009] The moving knife device is connected to the frame and the gearbox respectively, and is used for breaking the soil and loosening the roots;

[0010] The fixed knife device is fixedly connected to the frame and is used to separate the tuberous stems of mustard tuber from its shortened stems.

[0011] In a possible design, the moving knife device includes: a knife holder connecting rod, a driving connecting rod and a knife body;

[0012] The middle part of the tool holder connecting rod is hinged to the frame and connected to the gearbox through the driving connecting rod;

[0013] One end of the tool holder connecting rod is connected to the driving connecting rod, and the other end of the tool holder connecting rod is connected to the tool body.

[0014] In a possible design, the fixed knife device includes: a fixed knife connecting sleeve, a fixed knife frame, a fixed knife, a fixed knife fixing frame, a return spring, a fixed knife spring seat and a fixed knife connecting rod;

[0015] The fixed knife fixing frame is fixedly connected to the frame, and is hinged to the fixed knife connecting sleeve and the fixed knife connecting rod respectively;

[0016] One end of the fixed knife holder is hinged to the fixed knife connecting rod and the fixed knife spring seat respectively, and the other end of the fixed knife holder is fixedly connected to the fixed knife.

[0017] In a possible design, the blade curve of the fixed blade includes a B-spline curve.

[0018] In a possible design, the angle between the knife-shaped curve and the horizontal direction in the cutting plane ranges from 15° to 75°.

[0019] In a possible design, the diameter of the transition arc between adjacent blades in the knife-shaped curve is 30 mm.

[0020] In a possible design, the fixed knife spring seat is installed in the fixed knife connecting sleeve, and performs translational movement in the fixed knife connecting sleeve through the action of the fixed knife holder and the return spring.

[0021] In a possible design, a spring is attached to the fixed knife connecting rod, and the spring is used to achieve adaptive profiling during the mustard tuber harvesting process so that the fixed knife fits the mustard tuber to cut.

[0022] In a possible design, the frame is fixedly connected to the chassis of the walk-behind tractor, the tool holder connecting rod is hinged to the frame, and the tool body in the moving tool device is driven by the tool holder connecting rod to break the soil and loosen the roots.

[0023] In a possible design, during the movement of the moving knife device, the power is transmitted to the gearbox through a belt, and after the gearbox speed is adjusted, the eccentric wheel is driven to drive the knife holder connecting rod to move;

[0024] During the process of cutting the roots of mustard tuber by the fixed knife device, the fixed knife frame is fixedly connected to the frame, and the fixed knife frame is connected to the fixed knife through a parallel four-bar mechanism. During the forward movement of the whole machine, the fixed knife floats up and down around the hinge point with the terrain to achieve the shortened stem cutting of the mustard tuber.

[0025] The present invention provides a self-propelled tuber harvester for mustard tubers, comprising a walking tractor, a moving blade device, a fixed blade device, a frame and a gearbox; wherein the frame is fixed on the walking tractor; the gearbox is fixed on the frame and the walking tractor; the moving blade device is respectively connected to the frame and the gearbox for breaking the soil and loosening the roots; the fixed blade device is fixedly connected to the frame for separating the tubers of mustard tubers from their shortened stems. The self-propelled tuber harvester for mustard tubers provided by the present invention adopts a walking tractor to drive the harvesting in view of the current situation that the soil in the main production areas of mustard tubers is hard and the plots are undulating. The whole machine structure is light and simple, and the applicability is strong. It can ensure that the tubers of mustard tubers are completely removed, thereby improving the harvesting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces 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 invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 It is a structural schematic diagram of existing mustard tuber;

[0028] Figure 2 A schematic diagram of the structure of a self-propelled mustard tuber harvester provided by an embodiment of the present invention;

[0029] Figure 3 A schematic diagram of the structure of a moving knife device in a self-propelled mustard tuber harvester provided by an embodiment of the present invention;

[0030] Figure 4 A schematic diagram of the structure of a fixed blade device in a self-propelled mustard tuber harvester provided by an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of a fixed knife blade curve provided in an embodiment of the present invention;

[0032] Figure 6 A partially enlarged schematic diagram of a fixed knife blade curve provided in an embodiment of the present invention.

[0033] Figure 1-Figure 6 Among them, 1-hand tractor, 2-moving knife device, 3-fixed knife device, 4-frame, 5-gearbox, 21-knife holder connecting rod, 22-driving connecting rod, 23-knife body, 31-fixed knife connecting sleeve, 32-fixed knife holder, 33-fixed knife, 34-fixed knife fixing frame, 35-reset spring, 36-fixed knife spring seat, 37-fixed knife connecting rod. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0036] Zhacai, also known as tumorous stem mustard, belongs to the cruciferous plant family. Its main forms include leaves, roots and tumorous stems. Figure 1 It is a structural diagram of existing mustard tuber, such as Figure 1 As shown, a represents the height of the shortened stem from the ground, b represents the root length below the ground, c represents the shortened stem diameter, d represents the longitudinal diameter of the expanded stem, and e represents the expanded stem diameter. The above-ground part (a+d) is 60-80cm high, the root length b below the ground is 20-30cm, and the whole plant generally weighs 2-4kg. The mustard tuber stem can be divided into two parts: the shortened stem and the expanded stem. The expanded stem can also be called the cabbage head, which is edible and generally weighs about 0.5kg per piece, and the larger one is 1-1.5kg. The shortened stem refers to the part of the mustard tuber root that is distributed above the ground and connected to the expanded stem. The length ranges from 10mm to 50mm, and the shortened stem diameter c ranges from 15-40mm.

[0037] The main production area of ​​​​pickle tuber is in the southwest of my country. The planting area is mostly hilly and mountainous, and the fields are terraced or sloped. The ground where pickle tuber is planted is undulating. Usually manual harvesting is required. During the harvesting process, the pickle tuber goes through processes such as root cutting, collection, transportation, and leaf removal. Among them, the root cutting process directly acts on the shortened stem through the knife to separate the tuber from the shortened stem. However, due to the extremely uneven fields and the different growth of pickle tuber, the height distribution of the shortened stem from the ground is uneven. Moreover, the cutting process requires that the tuber should not be damaged. It is the most labor-intensive part of the pickle tuber harvesting process. Manual cutting is mostly used, resulting in a large workload and low efficiency. In addition, there is a lack of labor in hilly and mountainous areas, and the cost of hiring workers to harvest is high, resulting in extremely high labor costs. In addition, it usually takes several days to complete the harvest of one acre of land. Once the best harvest period is missed, the taste of the pickle tuber is greatly weakened.

[0038] The following specific embodiments are used to describe in detail the technical solutions of the present invention and how the technical solutions of the present application solve the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0039] The present invention provides a self-propelled tuber harvester for mustard tubers, comprising a walking tractor, a moving blade device, a fixed blade device, a frame and a gearbox; wherein the frame is fixed on the walking tractor; the gearbox is fixed on the frame and the walking tractor; the moving blade device is respectively connected to the frame and the gearbox for breaking the soil and loosening the roots; the fixed blade device is fixedly connected to the frame for separating the tubers of mustard tubers from their shortened stems. The self-propelled tuber harvester for mustard tubers provided by the present invention adopts a walking tractor to drive the harvesting in view of the current situation that the soil in the main production areas of mustard tubers is hard and the plots are undulating. The whole machine structure is light and simple, and the applicability is strong. It can ensure that the tubers of mustard tubers are completely removed, thereby improving the harvesting efficiency.

[0040] Figure 2 The schematic diagram of the structure of the self-propelled mustard tuber harvester provided by the embodiment of the present invention is as follows. Figure 2 As shown, the harvester of this embodiment includes a walking tractor 1, a moving blade device 2, a fixed blade device 3, a frame 4 and a gearbox 5. The frame 4 is fixed to the walking tractor 1 and arranged at the front side of the walking tractor 1; the gearbox 5 is fixed to the frame 4 and the walking tractor 1; the moving blade device 2 is connected to the frame 4 and the gearbox 5 respectively, and is used to break the soil and loosen the roots; the fixed blade device 3 is fixedly connected to the frame 4, and is used to separate the tuberous stems of mustard tubers from their shortened stems.

[0041] Specifically, the moving knife device includes: a tool holder connecting rod, a driving connecting rod and a tool body; wherein the middle part of the tool holder connecting rod is hinged to the frame and is connected to the gearbox through the driving connecting rod; one end of the tool holder connecting rod is connected to the driving connecting rod, and the other end of the tool holder connecting rod is connected to the tool body.

[0042] Figure 3 The structural schematic diagram of the moving knife device in the self-propelled mustard tuber harvester provided by the embodiment of the present invention is as follows: Figure 3 As shown, the moving knife device includes: a knife holder connecting rod 21, a driving connecting rod 22 and a knife body 23; wherein the middle part of the knife holder connecting rod 21 is hinged to the frame 4, and is connected to the gearbox 5 through the driving connecting rod 22;

[0043] One end of the tool holder connecting rod 21 is connected to the driving connecting rod 22 , and the other end of the tool holder connecting rod 21 is connected to the tool body 23 .

[0044] During the movement of the moving knife device, the power is transmitted to the gearbox 5 through a belt, and after the gearbox 5 is adjusted in speed, the eccentric wheel is driven to drive the knife holder connecting rod 21 to move.

[0045] Specifically, the fixed knife device comprises: a fixed knife connecting sleeve, a fixed knife frame, a fixed knife, a fixed knife, a fixed knife fixing frame, a reset spring, a fixed knife spring seat and a fixed knife connecting rod; wherein the fixed knife fixing frame is fixedly connected to the frame, and is respectively hinged to the fixed knife connecting sleeve and the fixed knife connecting rod; one end of the fixed knife frame is hinged to the fixed knife connecting rod and the fixed knife spring seat in turn, and the other end of the fixed knife frame is fixedly connected to the fixed knife.

[0046] Figure 4 The structural diagram of the fixed blade device in the self-propelled mustard tuber harvester provided by the embodiment of the present invention is as follows: Figure 4 As shown, the fixed knife device includes: a fixed knife connecting sleeve 31, a fixed knife frame 32, a fixed knife 33, a fixed knife fixing frame 34, a reset spring 35, a fixed knife spring seat 36 and a fixed knife connecting rod 37; wherein the fixed knife fixing frame 34 is fixedly connected to the frame 4, and is hinged to the fixed knife connecting sleeve 31 and the fixed knife connecting rod 37 respectively; the upper end of the fixed knife frame 32 is hinged to the fixed knife connecting rod 37 and the fixed knife spring seat 36 in turn, and the lower end of the fixed knife frame 32 is fixedly connected to the fixed knife 33.

[0047] When the fixed blade device cuts the mustard tuber roots, the fixed blade holder 32 is fixedly connected to the frame 4, and the fixed blade holder 32 is connected to the fixed blade 33 via a parallel four-bar mechanism. When the whole machine moves forward, the fixed blade 33 floats up and down around the hinge point with the terrain to shorten the stems of the mustard tuber. The parallel four-bar mechanism is composed of a fixed blade connecting sleeve 31, a fixed blade fixing frame 34, a fixed blade connecting rod 37, and a part of the fixed blade holder 32.

[0048] In an optional embodiment, the knife-shaped curve of the fixed knife includes a B-spline curve.

[0049] The included angle between the knife-shaped curve and the horizontal direction in the cutting plane is in the range of 15°-75°.

[0050] The diameter of the transition arc between adjacent blades in the knife-shaped curve is 30 mm.

[0051] Specifically, to ensure a good sliding effect of shortening the stem of the cabbage head, refer to Figure 5 , Figure 5 A schematic diagram of a fixed knife blade curve provided in an embodiment of the present invention, such as Figure 5 As shown,

[0052] The blade curve of the fixed blade 33 is controlled by the B-spline curve, and the angle between the blade curve and the horizontal direction is in the range of 15°-75°, that is, the sliding angle of the fixed blade during the sliding cutting process is guaranteed to be in the range of 15°-75°. In addition, according to the distribution of the shortened stem size, the diameter of the transition arc between adjacent blades is designed to be 30mm; reference Figure 6 , Figure 6 A partial enlarged schematic diagram of a fixed knife blade curve provided in an embodiment of the present invention is shown in FIG. Figure 6 The diameter of the transition arc between adjacent blades is shown to be 30 mm.

[0053] In some optional embodiments, a spring is attached to the fixed knife connecting rod 37, and the spring is used to achieve adaptive profiling during the mustard tuber harvesting process so that the fixed knife 33 fits the mustard tuber to cut.

[0054] In some optional embodiments, the fixed knife spring seat 36 is installed in the fixed knife connecting sleeve 31 , and performs translational movement in the fixed knife connecting sleeve 31 through the action of the fixed knife holder 32 and the return spring 35 .

[0055] In some optional embodiments, the frame 4 is fixedly connected to the chassis of the walking tractor 1, the tool holder connecting rod 21 is hinged to the frame 4, and the tool body 23 in the moving tool device is driven by the tool holder connecting rod 21 to break the soil and loosen the roots.

[0056] In some optional embodiments, during the movement of the moving knife device, the power is transmitted to the gearbox 5 through a belt, and after the gearbox 5 is adjusted in speed, the eccentric wheel is driven to drive the knife holder connecting rod 21 to move;

[0057] When the fixed blade device cuts the mustard tuber roots, the fixed blade holder 32 is fixedly connected to the frame 4, and the fixed blade holder 32 is connected to the fixed blade 33 via a parallel four-bar mechanism. When the whole machine moves forward, the fixed blade 33 floats up and down around the hinge point with the terrain to shorten the stems of the mustard tuber. The parallel four-bar mechanism is composed of a fixed blade connecting sleeve 31, a fixed blade fixing frame 34, a fixed blade connecting rod 37, and a part of the fixed blade holder 32.

[0058] The self-propelled mustard tuber harvesting device provided by the present invention combines a set of moving knife soil breaking device and a set of stationary knife root cutting device into a set of machines, and uses the moving knife soil breaking and stationary knife root cutting method to harvest the mustard tuber heads. In particular, in view of the current situation of hard soil and uneven land in the main mustard production areas, a walk-behind tractor is used to drive the harvesting, and the whole machine structure is light and simple, and has strong applicability. It can ensure that the mustard tuber is completely removed, and the harvesting efficiency is improved.

[0059] In the present invention, unless otherwise clearly defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral molding, it can be a mechanical connection, it can be an electrical connection, or it can communicate with each other; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described 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 invention.

Claims

1. A self-propelled mustard tuber harvester, characterized in that: The harvester comprises: A walking tractor, a moving blade device, a fixed blade device, a frame and a gearbox; wherein the frame is fixed on the walking tractor; The gearbox is fixed to the frame and the walking tractor; The moving knife device is connected to the frame and the gearbox respectively, and is used for breaking the soil and loosening the roots; The fixed knife device is fixedly connected to the frame and is used to separate the tuberous stems of mustard tuber from its shortened stems; The fixed knife device comprises: a fixed knife connecting sleeve, a fixed knife frame, a fixed knife, a fixed knife fixing frame, a reset spring, a fixed knife spring seat and a fixed knife connecting rod; The fixed knife fixing frame is fixedly connected to the frame, and is hinged to the fixed knife connecting sleeve and the fixed knife connecting rod respectively; One end of the fixed knife holder is hinged to the fixed knife connecting rod and the fixed knife spring seat respectively, and the other end of the fixed knife holder is fixedly connected to the fixed knife; The knife-shaped curve of the fixed knife includes a B-spline curve; The angle between the knife-shaped curve and the horizontal direction in the cutting plane ranges from 15° to 75°; The diameter of the transition arc between adjacent blades in the knife-shaped curve is 30 mm; The fixed knife spring seat is installed in the fixed knife connecting sleeve, and performs translational movement in the fixed knife connecting sleeve through the action of the fixed knife holder and the return spring; A spring is attached to the fixed knife connecting rod, and the spring is used to achieve adaptive profiling during the mustard tuber harvesting process, so that the fixed knife fits the mustard tuber to cut.

2. The harvester according to claim 1, characterized in that: The moving knife device comprises: a knife holder connecting rod, a driving connecting rod and a knife body; The middle part of the tool holder connecting rod is hinged to the frame and connected to the gearbox through the driving connecting rod; One end of the tool holder connecting rod is connected to the driving connecting rod, and the other end of the tool holder connecting rod is connected to the tool body.

3. The harvester according to claim 2, characterized in that: The frame is fixedly connected to the chassis of the walking tractor, the tool holder connecting rod is hinged to the frame, and the tool body in the moving tool device is driven by the tool holder connecting rod to break the soil and loosen the roots.

4. The harvester according to claim 2, characterized in that: During the movement of the moving knife device, the power is transmitted to the gearbox through a belt, and after the gearbox speed is adjusted, the eccentric wheel is driven to drive the knife holder connecting rod to move; During the process of the fixed knife device cutting the roots of the mustard tuber, the fixed knife fixing frame is fixedly connected to the frame, and the fixed knife fixing frame is connected to the fixed knife frame through a parallel four-bar mechanism. During the forward movement of the whole machine, the fixed knife floats up and down around the hinge point with the terrain to achieve the shortened stem cutting of the mustard tuber.

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