A Fixed-axis Double-row Pile-supporting Tooth-type Device for Righting the Stumps of Ratoon Rice and a Harvester

Abstract

The present invention provides a fixed-axis double-row straightening tooth type regenerated rice pile straightening device and a harvester, comprising a frame, a hinged support, a support arm, a first drive mechanism, a second drive mechanism and a pile straightening mechanism; the pile straightening mechanism comprises a fixed plate, a support rod, a main shaft, a pile straightening tooth fixing plate, a connecting plate and a connecting rod; the pile straightening mechanism is a fixed-axis structure, wherein both ends of the main shaft are respectively connected to the fixed plate, the fixed plate is provided with a support rod, the two ends of the connecting rod are respectively connected to the support rod, the two ends of the connecting rod are respectively provided with a connecting plate, the connecting rod is symmetrically provided with pile straightening tooth fixing plates on the left and right sides, the pile straightening tooth fixing plates are connected to the connecting plate, and each pile straightening tooth fixing plate is provided with two rows of pile straightening teeth arranged front and back; the pile straightening tooth fixing plates on each side are respectively connected to their corresponding connecting plates. The present invention adopts a fixed-axis structure, has a simple structure, a motion trajectory that meets the pile straightening requirements, increases the probability of straightening, has high work efficiency, a simple structure, and a good pile straightening effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural equipment for ratoon rice, and particularly relates to a fixed-axis double-row pile-supporting tooth type ratoon rice stubble righting device and a harvester. Background Art

[0002] During the harvesting process of the first crop of ratoon rice, the ratoon rice stubbles will be lodged due to the rolling of the crawler of the harvester. If the lodged stubbles are not righted, it will affect the germination of the rice ratooning tillers and reduce the yield of the second crop of ratoon rice. However, the traditional righting method usually adopts manual righting in the field, which has a large workload and low efficiency and is not suitable for large-field operations.

[0003] In recent years, Lin Weiguo et al. from Huazhong Agricultural University have disclosed a ratoon rice stubble righting device, which adopts a flexible righting wheel mechanism to right the stubble without damaging the rice stubble. At the same time, the design of the profiling structure also ensures the working effect of the righting device and is used in cooperation with the harvester; Liu Zhaopeng et al. from Jiangxi Agricultural University have disclosed a micro righting machine for ratoon rice stubbles crushed by agricultural machinery, which transmits the power of the agricultural machinery to the righting mechanism, and the frame is connected to the agricultural machinery through a suspension mechanism; Xu Lizhang et al. from Jiangsu University have disclosed a self-adaptive regulation system and regulation method for the cutting height and stubble righting operation of ratoon rice, which is used to right the cut stubbles rolled by the crawler or wheeled walking device while harvesting the first crop of ratoon rice, and can effectively realize the integration of ratoon rice harvesting and righting, reducing the yield loss of the second crop.

[0004] However, the existing stubble righting devices generally have problems such as large volume, lack of the ability to synchronously operate with the harvesting operation vehicle for the inverted stubble righting device, cumbersome field operations, and unobvious inverted stubble righting effect. Due to the reduction of the second crop yield caused by the rolling of the second crop stubbles, the popularization of ratoon rice is also limited. Summary of the Invention

[0005] Aiming at the above technical problems, the purpose of the present invention is to solve the deficiencies of the above background art and provide a fixed-axis double-row pile-supporting tooth type ratoon rice stubble righting device and a harvester with high working efficiency, simple structure, and good inverted stubble righting effect.

[0006] Note that the recording of these purposes does not prevent the existence of other purposes. One embodiment of the present invention does not need to achieve all the above purposes. Other purposes than the above can be extracted from the descriptions of the specification, drawings, and claims.

[0007] The present invention realizes the above technical purposes through the following technical means.

[0008] A fixed-axis double-row pile-supporting tooth type ratoon rice stubble righting device includes a frame table, a hinge support, a support arm, a first driving mechanism, a second driving mechanism, and a stubble righting mechanism;

[0009] The stub retaining and straightening mechanism includes a fixed disk, support rods, a main shaft, stub straightening tooth fixing plates, connecting plates and connecting rods; the stub retaining and straightening mechanism is of a fixed shaft structure, with both ends of the main shaft connected to the fixed disks respectively, support rods provided on the fixed disks, both ends of the connecting rod connected to the support rods respectively, connecting plates provided at both ends of the connecting rod respectively, stub straightening tooth fixing plates symmetrically arranged on the left and right sides of the connecting rod respectively, the stub straightening tooth fixing plates connected to the connecting plates, and two rows of stub straightening teeth arranged front and back provided on each stub straightening tooth fixing plate; each stub straightening tooth fixing plate on each side is respectively connected to its corresponding connecting plate;

[0010] One end of the main shaft is connected to the second driving mechanism.

[0011] The stub retaining and straightening mechanism includes a fixed disk, support rods, a main shaft, stub straightening tooth fixing plates and a connecting rod; the stub retaining and straightening mechanism is of a fixed shaft structure, with both ends of the main shaft connected to the fixed disks respectively, support rods provided on the fixed disks, both ends of the connecting rod connected to the support rods respectively, stub straightening tooth fixing plates provided on both sides of the connecting rod, and two rows of stub straightening teeth arranged front and back provided on each stub straightening tooth fixing plate; one end of the main shaft is connected to the second driving mechanism.

[0012] In the above solution, the stub retaining and straightening mechanism further includes an adjusting plate and an adjusting handle;

[0013] One end of the adjusting handle is connected to the connecting rod, and the other end is connected to the circular holes arranged in an arc on the adjusting plate.

[0014] In the above solution, four support rods are provided on the fixed disk, and the four support rods are evenly distributed around the rotating main shaft.

[0015] In the above solution, the main shaft is connected to the second driving mechanism through a coupling; the first driving mechanism is a hydraulic cylinder; the second driving mechanism is a hydraulic motor.

[0016] In the above solution, the connecting section of the stub straightening tooth and the stub straightening tooth fixing plate is rectangular, and the section of the stub straightening tooth away from the stub straightening tooth fixing plate is arc-shaped; the tip of the stub straightening tooth is of a hemispherical structure.

[0017] In the above solution, the stub straightening tooth is made of nylon material.

[0018] In the above solution, one end of the connecting rod is connected to one side support rod through a closed support ring, and the other end is connected to the other side support rod through an open semi-circular ring structure.

[0019] In the above solution, the stub retaining and straightening mechanism further includes a shaft seat; the support arm is connected to the main shaft on the fixed disk through the shaft seat.

[0020] In the above solution, both ends of the connecting rod are respectively connected to the frame table through hinge supports.

[0021] A harvester, including the fixed-axis double-row pile-supporting tooth type ratooning rice stubble righting device described above.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] In one embodiment of the present invention, a double-row pile-supporting tooth structure with four rods is adopted, which reduces the increased mass at the rear of the vehicle body. At the same time, a fixed-axis structure is adopted, with a simple structure and a motion trajectory that meets the requirements of stubble righting. Due to the adoption of the double-row pile-supporting tooth structure, the probability of righting is increased, the rotational speed is reduced, and the number of strikes on the stubble is decreased. Double-row adjustable-angle pile-supporting teeth are designed, and the angle of the pile-supporting teeth can be adjusted through an adjustment plate to right the fallen piles with different degrees of rolling, which is convenient and fast;

[0024] In one embodiment of the present invention, a hydraulic cylinder is adopted to adjust the height of the pile-supporting mechanism, and the ground clearance of the device can be adjusted according to different stubble rolling conditions, which is convenient and fast. Moreover, when the device turns at the field edge or in other non-working scenarios, it can be quickly folded, which is convenient and efficient;

[0025] In one embodiment of the present invention, pile-supporting teeth made of soft and fine materials are adopted to right the rolled stubble with less damage. At the same time, a hydraulic motor is used as the driving element, and the rotational speed is adjustable and easy to adjust. It is used in cooperation with a combine harvester, with convenient operation, realizing the integration of harvesting and righting during the first-season harvesting process of ratooning rice, and greatly saving manpower and material resources.

[0026] Note that the description of these effects does not prevent the existence of other effects. One embodiment of the present invention does not necessarily have all the above effects. Other effects beyond the above can be obviously seen and extracted from the descriptions in the specification, drawings, claims, etc. Description of the Drawings

[0027] Figure 1 Is an axonometric schematic diagram of a ratooning rice stubble righting device according to an embodiment of the present invention;

[0028] Figure 2 Is Figure 1 The left-view structural schematic diagram of the shown ratooning rice stubble righting device;

[0029] Figure 3 Is Figure 1 The top-view structural schematic diagram of the shown ratooning rice stubble righting device;

[0030] Figure 4 Is Figure 1 The structural schematic diagram of the shown ratooning rice stubble righting device in the working state;

[0031] Figure 5 Is Figure 1Schematic diagram of the structure of the shown ratoon rice stubble straightening device after folding in the non-working state;

[0032] Figure 6 For Figure 1 Schematic diagram of the structure of the shown ratoon rice stubble straightening device with different stubble straightening teeth angles after adjustment;

[0033] Figure 7 For Figure 1 Schematic diagram of the structure of the shown ratoon rice stubble straightening device with different stubble straightening teeth angles after adjustment;

[0034] Figure 8 For Figure 1 Schematic diagram of the structure of the shown ratoon rice stubble straightening device with different stubble straightening teeth angles after adjustment;

[0035] Figure 9 Figure 1 Partial schematic diagram of the double-row flexible stubble straightening teeth of the shown ratoon rice stubble straightening device;

[0036] Figure 10 Partial schematic diagram of the adjusted angle of the shown ratoon rice stubble straightening device.

[0037] In the figure, 1. Frame table; 2. Hinge support; 3. Support arm; 4. Oil cylinder support seat; 5. Hydraulic cylinder; 6. Hydraulic motor; 7. Stubble straightening mechanism; 7.1. Fixed disk; 7.2. Support rod; 7.3. Closed support ring; 7-4. Adjusting plate, 7.5. Adjusting handle; 7.6. Shaft seat; 7.7. Main shaft; 7.8. Stub straightening tooth fixing plate; 7.9. Connecting plate; 8. Coupling; 9. Shaft; 10. Bush; 11. Bushing; 12. Stub straightening tooth; 13. Open semi-circular ring structure. Detailed implementation mode

[0038] The following details the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "front", "rear", "left", "right", "upper", "lower", "axial", "radial", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0040] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Figures 1-10 Shown is a preferred embodiment of the fixed-axis double-row pile-supporting tooth type ratooning rice stubble righting device. The fixed-axis double-row pile-supporting tooth type ratooning rice stubble righting device includes a frame table 1, a hinge support 2, a support arm 3, an oil cylinder support seat 4, a first driving mechanism, a second driving mechanism, and a stubble righting mechanism 7;

[0042] Both sides of the stubble righting mechanism 7 are respectively connected to the connecting rods on the frame table 1 through the support arms 3; both ends of the connecting rods are connected to the frame table 1; one end of the first driving mechanism is connected to the support arm 3, and the other end is connected to the frame table 1 through the oil cylinder support seat 4;

[0043] The stub retaining and straightening mechanism 7 includes a fixed disk 7.1, support rods 7.2, a main shaft 7.7, a stub straightening tooth fixing plate 7.8, a connecting plate 7.9 and a connecting rod; the stub retaining and straightening mechanism 7 is of a fixed shaft structure, with both ends of the main shaft 7.7 connected to the fixed disk 7.1 respectively. A plurality of support rods 7.2 are evenly arranged on the fixed disk 7.1. Both ends of the connecting rod are connected to the support rods 7.2 respectively. Connecting plates 7.9 are respectively arranged at both ends of the connecting rod. Stub straightening tooth fixing plates 7.8 are symmetrically arranged on the left and right sides of the connecting rod. The stub straightening tooth fixing plates 7.8 are connected to the connecting plates 7.9. Two rows of stub straightening teeth 12 arranged front and back are provided on each stub straightening tooth fixing plate 7.8; the stub straightening tooth fixing plates 7.8 on each side are respectively connected to their corresponding connecting plates 7.9; one end of the main shaft 7.7 is connected to the second driving mechanism.

[0044] Preferably, the connecting plate 7.9 is welded to the connecting rod according to the width of the crawler rolling. The stub straightening tooth fixing plates 7.8 are symmetrically distributed on both sides of the connecting rod and connected to the connecting plate. The stub straightening teeth 12 are divided into two rows and evenly distributed on the stub straightening tooth fixing plates 7.8;

[0045] According to this embodiment, preferably, the stub retaining and straightening mechanism 7 further includes an adjusting plate 7.4 and an adjusting handle 7.5;

[0046] One end of the adjusting handle 7.5 is connected to the connecting rod, and the other end is connected to the circular holes arranged in an arc on the adjusting plate 7.4.

[0047] According to this embodiment, preferably, four support rods 7.2 are provided on the fixed disk 7.1, and the four support rods 7.2 are evenly distributed around the rotating main shaft 7.7.

[0048] According to this embodiment, preferably, the main shaft 7.7 is connected to the second driving mechanism through a coupling 8, and the second driving mechanism drives the main shaft 7.7 to rotate.

[0049] According to this embodiment, preferably, the connecting section of the stub straightening tooth 12 and the stub straightening tooth fixing plate 7.8 is rectangular, with good connection strength; the section of the stub straightening tooth 12 away from the stub straightening tooth fixing plate 7.8 is arc-shaped, which is beneficial for the stub straightening tooth 12 to straighten the rolled stub; the tip of the stub straightening tooth 12 is of a hemispherical structure, which reduces the damage to the fallen pile during the process of the stub straightening tooth straightening the fallen pile.

[0050] According to this embodiment, preferably, the stub straightening tooth 12 is made of nylon material.

[0051] According to this embodiment, preferably, one end of the connecting rod is connected to one side support rod 7.2 through a closed support ring 7.3, and the other end is connected to the other side support rod 7.2 through an open semi-circular ring structure 13.

[0052] According to this embodiment, preferably, the stub retaining and straightening mechanism 7 further includes a shaft seat 7.6;

[0053] The support arm 3 is connected to the main shaft 7.7 on the fixed disk 7.1 through the shaft seat 7.6. The stubble righting mechanism 7 moves up and down with the support arm 3.

[0054] According to this embodiment, preferably, both ends of the connecting rod are respectively connected to the frame platform 1 through the hinge supports 2. The hinge 2 is welded to the frame platform 1, and the support arm 3 is welded to the connecting rod and then hinged to the hinge support 2.

[0055] According to this embodiment, preferably, the first driving mechanism is a hydraulic cylinder 5; the second driving mechanism is a hydraulic motor 6.

[0056] According to this embodiment, preferably, the frame platform 1 is welded by rectangular square tubes and is connected to the harvester frame through bolts.

[0057] According to this embodiment, preferably, the support arm 3 has a structure in which both ends are rectangular square tube support arms connected to the bearing seat of the stubble righting mechanism 7, the middle of the two support arms 3 is a round tube, which is connected by welding the support arm 3, and there are rectangular support tubes on both sides to play a strengthening role.

[0058] The support arm 3 has a hinge section and a movable end connected to the hinge seat 2. The movable end fixes the stubble righting mechanism through connection with the shaft seat 7.6. The hydraulic cylinder 5 and the hydraulic motor 6 are connected to the main shaft 7.7 through the coupling 8 to drive the stubble righting mechanism 7 to rotate.

[0059] The support arm 3 forms a hinge with the frame platform 1 through the hinge support 2 welded on the frame platform 1. At the same time, there are annular thin sheets on the connecting round tubes of the support arm 3 of the stubble righting mechanism 7 inside the hinge support 2 to prevent axial movement of the support arm of the stubble righting mechanism.

[0060] There is an oil cylinder support seat 4 on each of the left and right sides of the frame platform 1. One end of the hydraulic cylinder 5 is connected to the oil cylinder support seat 4 through a pin shaft, and the other end is connected to the support arm 3 through a pin shaft.

[0061] The right end of the main shaft 7.7 of the stubble righting mechanism 7 is a short shaft head, one end of which is welded to the middle tube shaft, and the other end is connected to the shaft sleeve 10. The shaft sleeve 10 is located inside the right end shaft seat, and the right end shaft seat is connected to the right support arm 3 through bolts. The left side is a long shaft head, one end is provided with a bushing 11 and a shaft sleeve 10, and is connected to the hydraulic motor 6 through the coupling 8. The shaft sleeve 10 is installed inside the shaft seat to reduce wear of the shaft, and the other end is welded to the middle tube shaft. The middle tube shaft is a hollow structure and plays a connecting role.

[0062] The stubble-remaining straightening mechanism 7 has a fixed-axis structure, with fixed disks 7.1 provided on both sides. Preferably, the fixed disk 7.1 is a square sheet metal bending structure with a round hole in the middle and is welded to the middle pipe shaft. Preferably, four square support rods 7.2 are welded to the fixed disk 7.1.

[0063] For the stubble-remaining straightening mechanism 7, one end of the square support rod 7.2 is welded to the fixed disk 7.1, and the other end is arc-shaped. The support rod 7.2 welded to the left fixed disk 7.1 is a circular ring structure, and the one on the right is an open semi-circular ring structure and is connected by bolts.

[0064] The connecting rod of the stubble-remaining straightening mechanism 7 is a round pipe, with one end located inside the circular ring and the other end fixed inside the open semi-circular ring structure.

[0065] For the double-row spring tooth straightening component of the stubble-remaining straightening mechanism, the stubble-straightening tooth fixing plate 7.8 is welded to the connecting plate 7.9, and the stubble-straightening tooth fixing plate 7.8 is welded to the connecting rod through the middle hole.

[0066] The stubble-straightening tooth 12 is made of nylon. One end is connected to the stubble-straightening tooth fixing plate, and the other end is the stubble-straightening end. Its structure is that the upper section is straight, and the lower half is arc-shaped. The part in contact with the stubble has an arc-shaped contour, and the top is hemispherical. The stubble-straightening tooth 12 as a whole presents an arc-shaped structure, enhancing the stubble-straightening effect and improving the structural strength. Its tip is a hemispherical structure, reducing the damage to the stubble.

[0067] The adjusting plate 7.4 is welded to the support rod 7.2 and has round holes on it. Further, the adjusting plate 7.4 is a plate-like structure, with evenly distributed round holes of the same size along the arc on it, playing a role in stepped adjustment for adjusting the angle of the adjusting handle 7.5. The adjusting handle 7.5 is a plate-like structure. One end of the adjusting handle 7.5 is welded to the rod head of the connecting rod, and the other end is connected to the adjusting plate 7.4 through a welding bolt, playing a role in adjusting the angle of the stubble-straightening tooth 12. By adjusting the angle of the adjusting handle 7.5, the angle range of the stubble-straightening tooth 12 can be changed, and thus the straightening trajectory can be changed to adapt to different requirements for straightening the fallen stubble. Through the double-row flexible stubble-straightening teeth 12, the number of straightening operations is increased, the straightening ability and the combing effect are enhanced, and at the same time, the rotation speed of the device is reduced, and the impact force of the device on the fallen stubble is reduced.

[0068] The lowest point of the stubble-straightening tooth 12 is 4 - 10 cm from the ground and is parallel to the ground.

[0069] The width of the frame platform 1 is variable, and different-sized frame platforms 1 can be replaced to connect with harvesters of different widths. The frame platform 1 is connected to the tail of the compatible harvester through bolts and is on the same horizontal plane as the harvesting frame.

[0070] The widths of the two rows of pile - supporting teeth 12 arranged front - to - back are consistent with the width of the crawler, and their widths and axial distances are consistent with the vehicle body, so that the pile - supporting teeth 12 only act on the rolled - down piles and do not act on the normal standing piles as much as possible.

[0071] The frame platform 1, the connecting rod, the support rod 7.2, etc. are all metal components made of metal materials. The fixed - shaft double - row pile - supporting tooth type regenerative rice standing - pile righting device is installed at the tail of the harvester for righting the rolled - down piles of regenerative rice. The frame platform 1 is used to connect with the vehicle body; a group of support arms 3 are used to support the standing - pile righting mechanism 7, and are connected by a round - tube connecting rod in the middle to ensure the strength and stability of the structure. It is hinged to the frame platform 1 through a hinge support 2; and a hydraulic cylinder 5 for controlling the lifting of the standing - pile righting mechanism 7, whose function is to fold the standing - pile righting mechanism to facilitate the transfer operation of the harvester in the field; the standing - pile righting mechanism 7 is suspended at the rear end of the support arm, and the hydraulic motor 6 is connected to the standing - pile righting mechanism 7 through a coupling 8. The present invention adopts a fixed - shaft righting wheel and double - row angle - adjustable flexible pile - supporting teeth 12 to right the rolled - down piles without damaging the standing piles of regenerative rice. At the same time, the height adjustment of the hydraulic cylinder 5 ensures the operation effect of the standing - pile righting device. When used in conjunction with the harvester, it is convenient to operate and can realize the integrated operation of regenerative rice harvesting and righting, saving manpower and material resources.

[0072] The present invention adopts a double - row pile - supporting tooth structure of a fixed - shaft four - bar. By using a fixed shaft and abandoning the eccentric - wheel structure, it is simple and light in structure, with a weight reduction of more than 40%, and the work is smoother; at the same time, by analyzing the trajectory of the righting process, double - row angle - adjustable pile - supporting teeth 12 are designed. By adjusting the angle of the pile - supporting teeth 12 through the adjustment plate 7.4, the rolled - down piles with different degrees of rolling can be righted, which is convenient and fast; adopting a double - row pile - supporting tooth structure increases the contact times between the pile - supporting teeth 12 and the rolled - down piles, reduces the rotational speed, and reduces the hitting times on the rolled - down piles. At the same time, the variable arrangement mode of the positions of the pile - supporting teeth 12 is suitable for righting the rolled - down piles of regenerative rice with different row spacings; and it meets the righting operation requirements of the rolled - down piles of regenerative rice.

[0073] The present invention uses a hydraulic cylinder 5 to adjust the ground clearance of the rolled - down pile righting device. The ground clearance of the device can be adjusted according to different rolling conditions of the standing piles, which is convenient and fast. And when the device is in non - working scenarios such as turning at the field edge, it can be quickly lifted and retracted after receiving an external signal to avoid the influence of the rolled - down pile righting device on the harvesting operation, achieving a truly integrated harvesting and righting operation, improving the operation efficiency and increasing the yield of the second - season rice.

[0074] The present invention adopts pile - supporting teeth 12 made of flexible materials to right the rolled - down piles with less damage. At the same time, a hydraulic motor 6 is used as the driving element, and the rotational speed is steplessly adjustable, which can be conveniently and quickly matched with the operation speed of the harvester, realizing the integrated operation of harvesting and righting in the process of the first - season harvesting of regenerative rice, and greatly saving manpower and material resources.

[0075] Example 2

[0076] A harvester, comprising the fixed-axis double-row pile-supporting tooth type ratooning rice stubble righting device described in Example 1, thus having the beneficial effects described in Example 1, which will not be elaborated here.

[0077] It should be understood that although this specification is described according to each embodiment, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0078] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixed-axis double-row pile-supporting tooth type stubble-retaining and uprighting device for ratooning rice, characterized in that, It includes a frame table (1), a hinge support (2), a support arm (3), a first driving mechanism, a second driving mechanism and a stubble-righting mechanism (7); Both sides of the stubble-righting mechanism (7) are respectively connected to the connecting rods on the frame table (1) through the support arms (3); both ends of the connecting rods are connected to the frame table (1); one end of the first driving mechanism is connected to the support arm (3), and the other end is connected to the frame table (1); The stubble-righting mechanism (7) includes a fixed disk (7.1), a support rod (7.2), a main shaft (7.7), a stubble-righting tooth fixing plate (7.8), a connecting plate (7.9) and a connecting rod; the stubble-righting mechanism (7) is a fixed-axis type structure, both ends of the main shaft (7.7) are respectively connected to the fixed disk (7.1), the fixed disk (7.1) is provided with support rods (7.2), both ends of the connecting rod are respectively connected to the support rods (7.2), both ends of the connecting rod are respectively provided with connecting plates (7.9), two rows of stubble-righting teeth (12) arranged front and back are symmetrically arranged on the left and right sides of the connecting rod, the stubble-righting tooth fixing plate (7.8) is connected to the connecting plate (7.9), and two rows of stubble-righting teeth (12) are arranged on each stubble-righting tooth fixing plate (7.8); each side of the stubble-righting tooth fixing plate (7.8) is respectively connected to its corresponding connecting plate (7.9); one end of the main shaft (7.7) is connected to the second driving mechanism; The stubble-righting mechanism (7) further includes an adjusting plate (7.4) and an adjusting handle (7.5); One end of the adjusting handle (7.5) is connected to the connecting rod, and the other end is connected to the circular holes arranged in an arc on the adjusting plate (7.4).

2. The fixed-axis double-row pile-supporting tooth type ratooning rice stubble righting device according to claim 1, characterized in that, Four support rods (7.2) are provided on the fixed disk (7.1), and the four support rods (7.2) are evenly distributed around the rotating main shaft (7.7).

3. The fixed-axis double-row pile-supporting tooth type ratooning rice stubble righting device according to claim 1, characterized in that, The main shaft (7.7) is connected to the second driving mechanism through a coupling (8); the first driving mechanism is a hydraulic cylinder (5); the second driving mechanism is a hydraulic motor (6).

4. The fixed-axis double-row pile-supporting tooth type ratooning rice stubble righting device according to claim 1, wherein The connecting section of the stubble-righting tooth (12) and the stubble-righting tooth fixing plate (7.8) is rectangular, and the section of the stubble-righting tooth (12) far from the stubble-righting tooth fixing plate (7.8) is arc-shaped; the tip of the stubble-righting tooth (12) is a hemispherical structure.

5. The fixed-axis double-row pile-supporting tooth type stubble-retaining rice straightening device according to claim 1, wherein The stubble-righting tooth (12) is made of nylon material.

6. The fixed-axis double-row pile-supporting tooth type ratooning rice stubble righting device according to claim 1, characterized in that, One end of the connecting rod is connected to one side of the support rod (7.2) through a closed support ring (7.3), and the other end is connected to the support rod (7.2) on the other side through an open semi-circular ring structure (13).

7. The fixed-axis double-row pile-supporting tooth type ratooning rice stubble righting device according to claim 1, wherein, The stubble-righting mechanism (7) further includes a shaft seat (7.6); The support arm (3) is connected to the main shaft (7.7) on the fixed disk (7.1) through the shaft seat (7.6).

8. The fixed-axis double-row pile-supporting tooth type ratooning rice stubble righting device according to claim 1, characterized in that, Both ends of the connecting rod are respectively connected to the frame table (1) through the hinge support (2).

9. A harvester, characterized in that, It includes the fixed-axis double-row stubble-righting tooth type regenerated rice stubble-righting device described in any one of claims 1-8.

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