A weeding device and control method for variable row and ridge spacing in a field of regenerated rice

Abstract

The present invention provides a variable row spacing and ridge spacing weeding device and control method suitable for a regenerated rice planting field, including an inter-ridge weeding device, an inter-row weeding device and an inter-ridge soil turning and mixing device, wherein the inter-ridge weeding device and the inter-ridge soil turning and mixing device are respectively installed on a chassis assembly; the inter-row weeding device is installed on the inter-ridge soil turning and mixing device; the inter-ridge weeding device includes a plurality of inter-ridge cutting units and an inter-ridge adjusting device; the inter-row weeding device is located behind the inter-ridge weeding device, the inter-row weeding device includes a sliding mechanism, an inter-row cutting unit and an inter-row adjusting device, the inter-row cutting unit is movably installed on the chassis assembly through the sliding mechanism, the inter-row cutting unit is used for inter-row cutting and weeding; the inter-ridge soil turning and mixing device is located behind the inter-row weeding device. The present invention can realize the efficient removal of weeds in the regenerated rice planting field without damaging the regenerated rice stubble.

Description

Technical Field

[0001] The invention relates to the field of plant protection of regenerated rice, and in particular to a weeding device with variable row spacing and ridge spacing suitable for regenerated rice planting fields and a control method. Background Art

[0002] Raised rice is a type of rice that is planted once and harvested twice. It has good quality and rich nutritional value. In recent years, the country has also introduced policies to vigorously develop the planting of regenerated rice to increase rice production. At present, the planting and management of regenerated rice in my country generally adopts the model of ordinary rice, resulting in the yield of regenerated rice failing to reach the ideal state. The ordinary planting and harvesting model is - sowing, pesticide weeding, fertilization, first season harvest, and regeneration season harvest. Under this model, weeding in the management process of regenerated rice is particularly important. Manual weeding is time-consuming and labor-intensive. The current weeding equipment is difficult to meet the weeding needs of the regenerated rice planting model. It is necessary to avoid crushing and damage to the regenerated rice stubble, and there is currently no equipment that can weed between ridges and rows at the same time. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a weeding device and a control method for variable row and ridge spacing suitable for regenerated rice planting fields, which can achieve efficient removal of weeds in regenerated rice planting fields without damaging the regenerated rice stubble.

[0004] The present invention achieves the above technical objectives through the following technical means.

[0005] A variable row and ridge spacing weeding device suitable for regenerated rice planting fields, comprising an inter-ridge weeding device, an inter-row weeding device and an inter-ridge soil turning and mixing device, wherein the inter-ridge weeding device and the inter-ridge soil turning and mixing device are respectively mounted on a chassis assembly; the inter-row weeding device is mounted on the inter-ridge soil turning and mixing device;

[0006] The inter-ridge weeding device includes a plurality of inter-ridge cutting units and an inter-ridge adjusting device, wherein the inter-ridge cutting units are used for inter-ridge cutting and weeding, and the inter-ridge adjusting device is used for changing the cutting height of the inter-ridge cutting devices; the inter-row weeding device is located behind the inter-ridge weeding device, and the inter-row weeding device includes a sliding mechanism, an inter-row cutting unit and an inter-row adjusting device, wherein the inter-row cutting unit is movably mounted on a chassis assembly via a sliding mechanism, the inter-row cutting unit is used for inter-row cutting and weeding, and the inter-row adjusting device is used for changing the spacing between adjacent inter-row cutting units; the inter-ridge soil turning and mixing device is located behind the inter-row weeding device, and is used for mixing the weeds cut between the ridges with the soil between the ridges.

[0007] Furthermore, the inter-ridge weeding device includes an inter-ridge cutting unit, an inter-ridge connecting shaft and an inter-ridge connecting shaft fixing plate; a plurality of inter-ridge cutting units are evenly distributed axially on the inter-ridge connecting shaft, and the inter-ridge connecting shaft is connected to the chassis assembly through the inter-ridge connecting shaft fixing plate; the inter-ridge cutting unit includes an inter-ridge cutting blade, an inter-ridge blade driving mechanism, an inter-ridge connecting rod, and an inter-ridge lifting hydraulic cylinder; one end of the inter-ridge connecting rod is connected to the inter-ridge blade driving mechanism, and the other end of the inter-ridge connecting rod is hinged to the inter-ridge connecting shaft, the inter-ridge cutting blade is transmission-connected to the inter-ridge blade driving mechanism, one end of the inter-ridge lifting hydraulic cylinder is connected to the inter-ridge connecting rod for changing the height of the inter-ridge cutting blade from the ground, and the other end of the inter-ridge lifting hydraulic cylinder is connected to the chassis assembly.

[0008] Furthermore, the inter-row weeding device includes an inter-row weeding unit, an inter-row lateral distance adjusting hydraulic cylinder, a hydraulic cylinder sliding connection bracket, a slider with a slide groove, a fixed slide groove block, a slide groove block support frame, a sliding hydraulic cylinder and a support frame, the fixed slide groove block is installed on the inter-ridge soil turning and mixing device through the slide groove block support frame, a slidable slider with a slide groove is installed in the fixed slide groove block, the sliding hydraulic cylinder is installed on the fixed slide groove block through the support frame, the stretching rod of the sliding hydraulic cylinder is connected to the fixed slide groove block for moving the slider with the slide groove; a plurality of hydraulic cylinder sliding connection brackets are evenly distributed in the slide groove of the slider with the slide groove, each hydraulic cylinder sliding connection bracket is connected to the inter-row lateral distance adjusting hydraulic cylinder, one end of the stretching rod of the inter-row lateral distance adjusting hydraulic cylinder is connected to the adjacent inter-row lateral distance adjusting hydraulic cylinder; the inter-row weeding unit is installed on the stretching rod of each inter-row lateral distance adjusting hydraulic cylinder for inter-row weeding.

[0009] Furthermore, the inter-row weeding unit includes an inter-row cutting blade, an inter-row driving mechanism and an inter-row lifting hydraulic cylinder, one end of the inter-row lifting hydraulic cylinder is connected to the stretching rod of the inter-row lateral distance adjustment hydraulic cylinder, the stretching rod of the inter-row lifting hydraulic cylinder is connected to the inter-row driving mechanism, and the inter-row driving mechanism is connected to the inter-row cutting blade.

[0010] Furthermore, the inter-ridge tilling and mixing device includes a tilling and cutting unit, a tilling connecting shaft and a tilling connecting shaft fixing plate; a plurality of tilling and cutting units are evenly distributed axially on the tilling connecting shaft, and the tilling connecting shaft is connected to the chassis assembly through the tilling connecting shaft fixing plate; the tilling and cutting unit includes a tilling and cutting knife group, a tilling knife group driving mechanism, a tilling connecting rod and a tilling and lifting hydraulic cylinder; one end of the tilling connecting rod is connected to the tilling knife group driving mechanism, and the other end of the tilling connecting rod is hinged to the tilling connecting shaft, the tilling and cutting knife group is transmission-connected to the tilling knife group driving mechanism, one end of the tilling and lifting hydraulic cylinder is connected to the tilling connecting rod for changing the height of the tilling and cutting knife group from the ground, and the other end of the tilling and lifting hydraulic cylinder is connected to the chassis assembly.

[0011] Furthermore, a liftable support rod is installed on the chassis assembly, one end of which is connected to the inter-ridge weeding device and the inter-ridge soil turning and mixing device respectively, and the other end of which is connected to the lifting mechanism, which is used to make the inter-ridge weeding device and the inter-ridge soil turning and mixing device rise and fall synchronously.

[0012] Furthermore, the length of the inter-ridge weeding device is greater than or equal to the inter-ridge distance of regenerated rice planting.

[0013] A control method for a variable row and ridge spacing weeding device applicable to a regenerated rice planting field comprises the following steps:

[0014] The length of the inter-ridge weeding device is M, and the inter-ridge distance M1 for planting regenerated rice is determined, and M≥M1; the inter-ridge cutting unit on one side of the inter-ridge weeding device is aligned with the weeds on one side of the inter-ridge;

[0015] Determine the serial number T of the ridge cutting unit whose height needs to be adjusted according to the spacing B of the ridge cutting units in the ridge weeding device, and respectively raise the cutting heights of the T-th ridge cutting unit to the Y-th ridge cutting unit through the ridge adjusting device, so that the T-th ridge cutting unit to the Y-th ridge cutting unit are not working; Y is the total number of ridge cutting units;

[0016] The inter-row weeding device sliding mechanism moves horizontally M1, so that one side of the inter-row weeding device is aligned with the junction between the rows and the ridges; the inter-row adjustment device adjusts the spacing h2 between adjacent inter-row cutting units, and h2 is determined by the total row width and the number of rows of the regenerated rice planting field;

[0017] According to the spacing B1 of the soil turning and cutting units in the inter-ridge soil turning and mixing device, the serial number T1 of the soil turning and cutting unit that needs to adjust the height is determined, and the heights of the T1th soil turning and cutting unit to the Y1th soil turning and cutting unit are respectively increased through the soil turning and adjusting device, so that the T1th soil turning and cutting unit to the Y1th soil turning and cutting unit are not working; Y1 is the total number of soil turning and cutting units.

[0018] The beneficial effects of the present invention are:

[0019] The variable row and ridge spacing weeding device and control method suitable for regenerated rice planting fields of the present invention adopts a ridge weeding device combined with a row weeding device to achieve the effect of simultaneously removing weeds between ridges and rows, and an ridge soil turning and mixing device is arranged behind the ridge weeding device to achieve soil turning and mixing after the ridge weeds are crushed. Secondly, a lifting and sliding device is designed to adjust its weeding range according to the ridge spacing and row spacing width, so as to achieve a variable spacing weeding function for regenerated rice planting with different row spacings. On the one hand, the applicability of the machine is improved, and on the other hand, damage to the regenerated rice stubble is avoided, which is beneficial to improving the cultivation quality of the regenerated rice during the planting process, thereby increasing the yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. The drawings described below are some embodiments of the present invention. For ordinary technicians in this field, it is obvious that other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of the variable row and ridge spacing weeding device suitable for a regenerated rice planting field according to the present invention.

[0022] Figure 2 It is a schematic diagram of the structure of the inter-ridge weeding device described in the present invention.

[0023] Figure 3 It is a schematic diagram of the structure of the inter-ridge cutting unit described in the present invention.

[0024] Figure 4 The figure is a schematic diagram of the structure of the inter-row weeding device of the present invention.

[0025] Figure 5 It is a schematic diagram of the sliding mechanism structure of the present invention.

[0026] Figure 6 It is a schematic diagram of the inter-row cutting unit described in the present invention.

[0027] Figure 7 It is a schematic structural diagram of the inter-ridge soil turning and mixing device described in the present invention.

[0028] Figure 8 It is a schematic diagram of the structure of the soil turning and cutting unit described in the present invention.

[0029] Fig. 9 This is a schematic diagram of the structure of the liftable support rod according to the present invention.

[0030] Fig.10 This is a spatial layout diagram of each weeding device of the present invention.

[0031] Fig.11 It is a schematic diagram of the movement of each weeding device of the present invention.

[0032] In the figure:

[0033] 1-inter-row weeding device; 101-inter-row cutting blade; 102-inter-row blade driving mechanism; 103-inter-row connecting rod; 104-inter-row lifting hydraulic cylinder; 105-inter-row connecting shaft; 106-inter-row connecting shaft fixing plate; 2-inter-row weeding device; 201-inter-row cutting blade; 202-inter-row driving mechanism; 203-inter-row lifting hydraulic cylinder; 204-inter-row horizontal distance adjustment hydraulic cylinder; 205-hydraulic cylinder sliding connection bracket; 206-with slide groove Slider; 207-fixed slide block; 208-slide block support frame; 209-sliding hydraulic cylinder; 210-support frame; 211-sliding block end face welding plate with slide; 3-inter-ridge soil turning and mixing device; 301-soil turning and cutting knife group; 302-soil turning knife group driving mechanism; 303-soil turning connecting rod; 304-soil turning and lifting hydraulic cylinder; 305-soil turning connecting shaft; 306-soil turning connecting shaft fixing plate; 4-chassis assembly; 401-liftable support rod. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "axial", "radial", "vertical", "horizontal", "inner", "outer" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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 cannot be understood as limiting 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 indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, 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 connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] like Figure 1 As shown, the variable row and ridge spacing weeding device suitable for regenerated rice planting fields of the present invention comprises an inter-ridge weeding device 1, an inter-row weeding device 2 and an inter-ridge soil turning and mixing device 3, wherein the inter-ridge weeding device 1 and the inter-ridge soil turning and mixing device 3 are respectively mounted on a chassis component 4; the inter-row weeding device 2 is mounted on the inter-ridge soil turning and mixing device 3; the inter-ridge weeding device 1 comprises a plurality of inter-ridge cutting units and an inter-ridge adjusting device, wherein the inter-ridge cutting unit is used for inter-ridge cutting and weeding, and the inter-ridge adjusting device is used for changing the cutting height of the inter-ridge cutting device; the inter-row weeding device 2 is located behind the inter-ridge weeding device 1, wherein the inter-row weeding device 2 comprises a sliding mechanism, an inter-row cutting unit and an inter-row adjusting device, wherein the inter-row cutting unit is movably mounted on the chassis component 4 through a sliding mechanism, wherein the inter-row cutting unit is used for inter-row cutting and weeding, and the inter-row adjusting device is used for changing the spacing between adjacent inter-row cutting units; the inter-ridge soil turning and mixing device 3 is located behind the inter-row weeding device 2, and is used for mixing the weeds cut between the ridges with the soil between the ridges.

[0038] like Figure 2 and Figure 3As shown, the inter-ridge weeding device 1 includes an inter-ridge cutting unit, an inter-ridge connecting shaft 105 and an inter-ridge connecting shaft fixing plate 106; the inter-ridge connecting shaft 105 is axially evenly distributed with a plurality of inter-ridge cutting units, and the inter-ridge connecting shaft 105 is connected to the chassis component 4 through the inter-ridge connecting shaft fixing plate 106; the inter-ridge cutting unit includes an inter-ridge cutting blade 101, an inter-ridge blade driving mechanism 102, an inter-ridge connecting rod 103, and an inter-ridge lifting hydraulic cylinder 104; one end of the inter-ridge connecting rod 103 is connected to the inter-ridge blade driving mechanism 102, and the other end of the inter-ridge connecting rod 103 is hinged to the inter-ridge connecting shaft 105, the inter-ridge cutting blade 101 is transmission-connected to the inter-ridge blade driving mechanism 102, one end of the inter-ridge lifting hydraulic cylinder 104 is connected to the inter-ridge connecting rod 103, and is used to change the height of the inter-ridge cutting blade 101 from the ground, and the other end of the inter-ridge lifting hydraulic cylinder 104 is connected to the chassis component 4. The connecting shaft fixing plate 106 can be connected to the chassis assembly 4 through the liftable support rod 401. When weeding between ridges, since the distance between ridges is different in different planting environments and modes, the weeding device between ridges of the planting field in the present invention can be applied to the general maximum ridge spacing. The length of the weeding device between ridges 1 is greater than or equal to the distance between ridges of regenerated rice planting.

[0039] like Figure 4 , Figure 5 and Figure 6As shown, the inter-row weeding device 2 includes an inter-row weeding unit, an inter-row lateral distance adjustment hydraulic cylinder 204, a hydraulic cylinder sliding connection bracket 205, a slider 206 with a slide groove, a fixed slide groove block 207, a slide groove block support frame 208, a sliding hydraulic cylinder 209 and a support frame 210. The fixed slide groove block 207 is installed on the soil turning connection shaft fixing plate 306 of the inter-ridge soil turning and mixing device 3 through the slide groove block support frame 208. The fixed slide groove block 207 is installed with a slidable slider 206 with a slide groove. The sliding hydraulic cylinder 209 is installed on the support frame 210 through the support frame 210. On the fixed slide block 207, the stretching rod of the sliding hydraulic cylinder 209 is connected to the fixed slide block 207, so as to move the slider 206 with the slide; a plurality of hydraulic cylinder sliding connection brackets 205 are evenly distributed in the slide of the slider 206 with the slide; each hydraulic cylinder sliding connection bracket 205 is connected to the inter-row lateral distance adjustment hydraulic cylinder 204, and one end of the stretching rod of the inter-row lateral distance adjustment hydraulic cylinder 204 is connected to the adjacent inter-row lateral distance adjustment hydraulic cylinder 204; an inter-row weeding unit is installed on the stretching rod of each inter-row lateral distance adjustment hydraulic cylinder 204 for inter-row weeding. The inter-row weeding unit includes an inter-row cutting blade 201, an inter-row driving mechanism 202 and an inter-row lifting hydraulic cylinder 203, one end of the inter-row lifting hydraulic cylinder 203 is connected to the stretching rod of the inter-row lateral distance adjustment hydraulic cylinder 204, the stretching rod of the inter-row lifting hydraulic cylinder 203 is connected to the inter-row driving mechanism 202, and the inter-row driving mechanism 202 is connected to the inter-row cutting blade 201. The weeding device between rows and ridges of the planting field of the present invention can be applied to the general maximum row spacing.

[0040] Implementation process: First, the fixed slide block 207 is fixedly connected to the soil turning connection shaft fixing plate 306 through three slide block support frames 208, and the slider 206 with the slide is installed in the slide of the fixed slide block 207 for easy sliding. When adjusting the row spacing for weeding, the sliding hydraulic cylinder 209 pushes the slider 206 with the slide in the slide of the fixed slide block 207 to move to the boundary between the rows of regenerated rice. The sliding hydraulic cylinder 209 is fixedly connected to the fixed slide block 207 through the support frame 210. On the one hand, it ensures the stability of the hydraulic cylinder, and on the other hand, it ensures that the slider 206 with the slide can move stably in the slide. When it moves to the boundary between the rows of regenerated rice, the telescopic movement of the inter-row lateral spacing adjustment hydraulic cylinder 204 will drive the inter-row lifting hydraulic Cylinder 203 reaches between the row spacings of regenerated rice, and then drives the inter-row cutting blades 201 and the inter-row driving mechanism 202 to reach between the row spacings of regenerated rice. The first inter-row lateral distance adjusting hydraulic cylinder 204 is fixedly connected to the end face welding plate 211 of the slider with a small slide groove, and the remaining inter-row lateral distance adjusting hydraulic cylinders 204 are connected end to end in pairs, ensuring that the entire device will not shake left and right after the distance adjustment is completed. One end of the hydraulic cylinder sliding connection bracket 205 is fixedly connected to the inter-row lateral distance adjusting hydraulic cylinder 204, and the other end is installed in the slide groove of the slider 206 with a slide groove. When the inter-row lateral distance adjusting hydraulic cylinder 204 telescopes and moves to adjust the distance, the hydraulic cylinder sliding connection bracket 205 follows and moves in the slide groove to provide support force for the inter-row lateral distance adjusting hydraulic cylinder 204.

[0041] like Figure 7 and Figure 8 As shown, the inter-ridge tilling and mixing device 3 includes a tilling and cutting unit, a tilling connecting shaft 305 and a tilling connecting shaft fixing plate 306; the tilling connecting shaft 305 is axially evenly distributed with a plurality of tilling and cutting units, and the tilling connecting shaft 305 is connected to the chassis assembly 4 through the tilling connecting shaft fixing plate 306; the tilling and cutting unit includes a tilling and cutting knife group 301, a tilling knife group driving mechanism 302, a tilling connecting rod 303 and a tilling and lifting hydraulic cylinder 304; one end of the tilling connecting rod 303 is connected to the tilling knife group driving mechanism 302, and the other end of the tilling connecting rod 303 is hinged to the tilling connecting shaft 305, the tilling and cutting knife group 301 is transmission-connected to the tilling knife group driving mechanism 302, one end of the tilling and lifting hydraulic cylinder 304 is connected to the tilling connecting rod 303, for changing the height of the tilling and cutting knife group 301 from the ground, and the other end of the tilling and lifting hydraulic cylinder 304 is connected to the chassis assembly 4.

[0042] like Fig. 9 As shown, a liftable support rod 401 is installed on the chassis assembly 4, and one end of the liftable support rod 401 is respectively connected to the inter-ridge weeding device 1 and the inter-ridge soil turning and mixing device 3, so as to make the inter-ridge weeding device 1 and the inter-ridge soil turning and mixing device 3 rise and fall synchronously.

[0043] The control method of the variable row and ridge spacing weeding device applicable to a regenerated rice planting field of the present invention comprises the following steps:

[0044] The length of the inter-ridge weeding device 1 is M, and the inter-ridge distance M1 for planting regenerated rice is determined, and M≥M1; the inter-ridge cutting unit on one side of the inter-ridge weeding device 1 is aligned with the weeds on one side of the inter-ridge;

[0045] According to the spacing B of the inter-ridge cutting units in the inter-ridge weeding device 1, the serial number T of the inter-ridge cutting unit whose height needs to be adjusted is determined, and the cutting heights of the T-th inter-ridge cutting unit to the Y-th inter-ridge cutting unit are respectively increased by the inter-ridge adjusting device, so that the T-th inter-ridge cutting unit to the Y-th inter-ridge cutting unit are not working; Y is the total number of the inter-ridge cutting units;

[0046] The sliding mechanism of the inter-row weeding device 2 moves horizontally M1, so that one side of the inter-row weeding device 2 is aligned with the junction between the rows and the ridges; the inter-row adjustment device adjusts the spacing h2 between adjacent inter-row cutting units, and h2 is determined by the total row width and the number of rows of the regenerated rice planting field;

[0047] According to the spacing B1 of the soil turning and cutting units in the inter-ridge soil turning and mixing device 3, the serial number T1 of the soil turning and cutting unit that needs to adjust the height is determined, and the heights of the T1th soil turning and cutting unit to the Y1th soil turning and cutting unit are respectively increased through the soil turning and adjusting device, so that the T1th soil turning and cutting unit to the Y1th soil turning and cutting unit are not working; Y1 is the total number of soil turning and cutting units.

[0048] There are two situations. The first situation is that the length M of the inter-ridge weeding device 1 is greater than the inter-ridge distance M1 of the regenerated rice. The second situation is that the length M of the inter-ridge weeding device 1 is equal to the inter-ridge distance M1 of the regenerated rice.

[0049] like Fig.10 and Fig.11 In the first case shown, when the length M of the inter-ridge weeding device 1 is greater than the inter-ridge distance M1 of the regenerated rice, part of the inter-ridge cutting units of the inter-ridge weeding device 1 are working, and the rest of the inter-ridge cutting units are not working. At this time, the inter-row weeding device 2 will have inter-row cutting units overlapping with the inoperative inter-ridge cutting units, and the inter-ridge turning and mixing device is located directly behind the inter-ridge weeding device, but the overlapping part with the inter-ridge weeding device is also raised. The specific steps are as follows:

[0050] S1: Adjust the inter-ridge weeding device 1, the inter-row weeding device 2 and the inter-ridge soil turning and mixing device 3 to a suitable position (a height capable of removing weeds) through the liftable support rod 401; align the inter-ridge cutting unit on one side of the inter-ridge weeding device with the weeds on one side of the inter-ridge;

[0051] S2: Determine the sequence number T of the inter-ridge cutting unit whose height needs to be adjusted according to the spacing B of the inter-ridge cutting units in the inter-ridge weeding device, specifically: The decimals are rounded off. The 1st to T-1st inter-ridge cutting units are adjusted to be able to contact the bottom of the weeds for cutting; the cutting heights of the Tth to Yth inter-ridge cutting units are respectively raised by the inter-ridge adjusting device, so that the Tth to Yth inter-ridge cutting units are not working to avoid accidental damage to the rice stubble; Y is the total number of inter-ridge cutting units;

[0052] S3: The inter-row weeding device sliding mechanism moves horizontally M1, so that one side of the inter-row weeding device is aligned with the junction between the rows and the ridges. At this time, part of the blades of the inter-row weeding device and part of the blades of the inter-ridge weeding device overlap when viewed from the front end of the machine body. The inter-row adjustment device adjusts the spacing h2 between adjacent inter-row cutting units, and h2 is determined by the total row width and the number of rows of the regenerated rice planting field: Where N1 is the total width of the row spacing of the ratoon rice planting area, and K1 is the number of rows planted with ratoon rice.

[0053] The cutting blade is adjusted to the position between the row spacings by horizontal extension and retraction of the inter-row horizontal distance adjusting hydraulic cylinder 204. The inter-row horizontal distance adjusting hydraulic cylinder 204 moves in the slide groove of the slide block 206 with a slide groove through the hydraulic cylinder sliding connection bracket 205 to ensure that the blade can be located between each row spacing.

[0054] S4: After the inter-row lateral distance adjustment hydraulic cylinder 204 is adjusted, the inter-row lifting hydraulic cylinder 203 adjusts the inter-row cutting blade 201 to move up and down until it contacts the bottom of the weeds for removal, and the blade driving mechanism drives the blade to rotate and adjusts the rotation speed.

[0055] S5: Determine the serial number T1 of the soil turning and cutting unit that needs to adjust the height according to the spacing B1 of the soil turning and cutting units in the inter-ridge soil turning and mixing device, and raise the heights of the T1th soil turning and cutting unit to the Y1th soil turning and cutting unit respectively through the soil turning and adjusting device, so that the T1th soil turning and cutting unit to the Y1th soil turning and cutting unit are not working; Y1 is the total number of soil turning and cutting units.

[0056] The second case is that the length M of the inter-ridge weeding device 1 is equal to the inter-ridge distance M1 of the regenerated rice planting; then in step S2, the sequence number T of the inter-ridge cutting unit that needs to be adjusted in height is determined according to the spacing B of the inter-ridge cutting units in the inter-ridge weeding device, and the sequence number T-1 is Y, that is, the 1st to Yth inter-ridge cutting units are adjusted to be able to contact the bottom of the weeds for cutting; there is no inter-ridge cutting unit with adjustable height. Similarly, in step S5, the 1st to Y1st soil turning cutting units are adjusted to be able to crush the weeds and turn the soil for mixing

[0057] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0058] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention. They are not intended to limit the scope of protection of the present invention. All equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A weeding device with variable row and ridge spacing suitable for regenerated rice planting fields, characterized in that: It comprises an inter-ridge weeding device (1), an inter-row weeding device (2) and an inter-ridge soil turning and mixing device (3), wherein the inter-ridge weeding device (1) and the inter-ridge soil turning and mixing device (3) are respectively mounted on a chassis component (4); the inter-row weeding device (2) is mounted on the inter-ridge soil turning and mixing device (3); The inter-row weeding device (1) comprises a plurality of inter-row cutting units and an inter-row adjusting device, wherein the inter-row cutting units are used for inter-row cutting and weeding, and the inter-row adjusting device is used for changing the cutting height of the inter-row cutting units; the inter-row weeding device (2) is located behind the inter-row weeding device (1), and the inter-row weeding device (2) comprises a sliding mechanism, an inter-row cutting unit and an inter-row adjusting device, wherein the inter-row cutting unit is movably mounted on a chassis assembly (4) via the sliding mechanism, and the inter-row cutting unit is used for inter-row cutting and weeding, and the inter-row adjusting device is used for changing the spacing between adjacent inter-row cutting units; The inter-ridge soil turning and mixing device (3) is located behind the inter-row weeding device (2) and is used to mix the weeds cut between the ridges with the soil between the ridges; the inter-row weeding device (2) comprises an inter-row weeding unit, an inter-row lateral distance adjustment hydraulic cylinder (204), a hydraulic cylinder sliding connection bracket (205), a sliding block with a slide groove (206), a fixed slide groove block (207), a slide groove block support frame (208), a sliding hydraulic cylinder (209) and a support frame (210); the fixed slide groove block (207) is installed on the inter-ridge soil turning and mixing device (3) through the slide groove block support frame (208); a sliding slide groove (206) is installed in the fixed slide groove block (207); the sliding hydraulic cylinder (209) is connected to the inter-ridge soil turning and mixing device (3) through the slide groove block support frame (208); a sliding slide groove (206) is installed in the fixed slide groove block (207); the sliding hydraulic cylinder (209) is connected to the inter-ridge soil turning and mixing device (3) through the slide groove block support frame (208); the sliding slide groove (206) is connected to the inter-ridge soil turning and mixing device (3) through the inter-row soil turning and mixing device (2); ...row soil turning and mixing device (3) through the inter-row soil turning and mixing device (2); the sliding slide groove (206) is connected to the inter-row soil turning and mixing The cylinder (209) is installed on the fixed slide block (207) through a support frame (210); the stretching rod of the sliding hydraulic cylinder (209) is connected to the fixed slide block (207) and is used to move the slider (206) with the slide groove; a plurality of hydraulic cylinder sliding connection brackets (205) are evenly distributed in the slide groove of the slider (206) with the slide groove; each hydraulic cylinder sliding connection bracket (205) is connected to the inter-row lateral distance adjustment hydraulic cylinder (204); one end of the stretching rod of the inter-row lateral distance adjustment hydraulic cylinder (204) is connected to the adjacent inter-row lateral distance adjustment hydraulic cylinder (204); an inter-row weeding unit is installed on the stretching rod of each inter-row lateral distance adjustment hydraulic cylinder (204) for inter-row weeding.

2. The variable row and ridge spacing weeding device suitable for regenerated rice planting fields according to claim 1 is characterized in that: The inter-ridge weeding device (1) comprises an inter-ridge cutting unit, an inter-ridge connecting shaft (105) and an inter-ridge connecting shaft fixing plate (106); the inter-ridge connecting shaft (105) is axially evenly distributed with a plurality of inter-ridge cutting units, and the inter-ridge connecting shaft (105) is connected to a chassis component (4) via the inter-ridge connecting shaft fixing plate (106); the inter-ridge cutting unit comprises an inter-ridge cutting blade (101), an inter-ridge blade driving mechanism (102), an inter-ridge connecting rod (103), and an inter-ridge lifting hydraulic cylinder (104); One end of the inter-ridge connecting rod (103) is connected to the inter-ridge blade driving mechanism (102), and the other end of the inter-ridge connecting rod (103) is hinged to the inter-ridge connecting shaft (105). The inter-ridge cutting blade (101) is transmission-connected to the inter-ridge blade driving mechanism (102). One end of the inter-ridge lifting hydraulic cylinder (104) is connected to the inter-ridge connecting rod (103) and is used to change the height of the inter-ridge cutting blade (101) above the ground. The other end of the inter-ridge lifting hydraulic cylinder (104) is connected to the chassis assembly (4).

3. The variable row and ridge spacing weeding device suitable for regenerated rice planting fields according to claim 1 is characterized in that: The inter-row weeding unit comprises an inter-row cutting blade (201), an inter-row driving mechanism (202) and an inter-row lifting hydraulic cylinder (203); one end of the inter-row lifting hydraulic cylinder (203) is connected to a stretching rod of an inter-row lateral distance adjustment hydraulic cylinder (204); the stretching rod of the inter-row lifting hydraulic cylinder (203) is connected to the inter-row driving mechanism (202); and the inter-row driving mechanism (202) is connected to the inter-row cutting blade (201).

4. The variable row and ridge spacing weeding device suitable for regenerated rice planting fields according to claim 1, characterized in that: The inter-ridge soil turning and mixing device (3) comprises a soil turning and cutting unit, a soil turning connecting shaft (305) and a soil turning connecting shaft fixing plate (306); the soil turning and cutting units are evenly distributed axially on the soil turning connecting shaft (305), and the soil turning and cutting shaft (305) is connected to the chassis component (4) via the soil turning connecting shaft fixing plate (306); the soil turning and cutting unit comprises a soil turning and cutting knife group (301), a soil turning knife group driving mechanism (302), a soil turning connecting rod (303) and a soil turning and lifting hydraulic cylinder (304); One end of the soil turning connecting rod (303) is connected to the soil turning knife group driving mechanism (302), and the other end of the soil turning connecting rod (303) is hinged to the soil turning connecting shaft (305). The soil turning cutting knife group (301) is transmission-connected to the soil turning knife group driving mechanism (302). One end of the soil turning lifting hydraulic cylinder (304) is connected to the soil turning connecting rod (303) for changing the height of the soil turning cutting knife group (301) above the ground, and the other end of the soil turning lifting hydraulic cylinder (304) is connected to the chassis assembly (4).

5. The variable row and ridge spacing weeding device suitable for regenerated rice planting fields according to claim 1, characterized in that: A liftable support rod (401) is installed on the chassis assembly (4), one end of the liftable support rod (401) being respectively connected to the inter-ridge weeding device (1) and the inter-ridge soil turning and mixing device (3) for synchronously lifting and lowering the inter-ridge weeding device (1) and the inter-ridge soil turning and mixing device (3).

6. The variable row and ridge spacing weeding device suitable for regenerated rice planting fields according to claim 1, characterized in that: The length of the inter-ridge weeding device (1) is greater than or equal to the inter-ridge distance for planting regenerated rice.

7. A control method for a variable row and ridge spacing weeding device suitable for a regenerated rice planting field according to any one of claims 1 to 6, characterized in that: The steps include: The length of the inter-ridge weeding device (1) is M, and the inter-ridge distance M1 for planting regenerated rice is determined, and M≥M1; the inter-ridge cutting unit on one side of the inter-ridge weeding device (1) is aligned with the weeds on one side of the inter-ridge; Determining the sequence number T of the ridge cutting unit whose height needs to be adjusted according to the spacing B of the ridge cutting units in the ridge weeding device (1), and raising the cutting heights of the T-th ridge cutting unit to the Y-th ridge cutting unit respectively through the ridge adjustment device, so that the T-th ridge cutting unit to the Y-th ridge cutting unit are not in operation; Y is the total number of ridge cutting units; The inter-row weeding device (2) sliding mechanism moves horizontally M1, so that one side of the inter-row weeding device (2) is aligned with the junction between the rows and the ridges; the inter-row adjustment device adjusts the spacing h2 between adjacent inter-row cutting units, and h2 is determined by the total row width and the number of rows of the regenerated rice planting field; The sequence number T1 of the soil turning and cutting unit that needs to be adjusted in height is determined according to the spacing B1 of the soil turning and cutting units in the inter-ridge soil turning and mixing device (3), and the heights of the soil turning and cutting units T1 to Y1 are respectively raised by the soil turning and adjusting device, so that the soil turning and cutting units T1 to Y1 are not in operation; Y1 is the total number of soil turning and cutting units.

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