Unmanned paddy field ditcher

Abstract

The invention discloses an unmanned paddy field ditcher, which comprises a walking assembly, which comprises a walking rack, and the left and right sides of the walking rack are respectively fixedly provided with a fixed support; the furrowing assembly comprises furrow openers which are respectively connected to the fixed bracket, each furrow opener is provided with an upward mounting opening which is convenient for adjusting the counter weight of the furrow opener, a plurality of vertical rods are arranged on the upper side of each furrow opener, and the upper sides of the vertical rods are movably connected to the fixed bracket; the balance weight is conveniently installed in the furrow opener, so that the furrow opening pressure is adjusted, the furrow opener adapts to the soil texture conditions of different fields, and the application range is wider.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural planting, in particular to an unmanned paddy field trenching machine. Background Art

[0002] In traditional technology, drainage ditches are dug manually. With the development of agricultural machinery, in the existing technology, paddy field trenchers are used to dig ditches in paddy fields. The unmanned paddy field trencher includes a trencher frame, a trencher is fixedly connected to the center of the trencher frame, and the trencher frame is liftably connected to the rear of a traveling device. The traveling device drives the paddy field trencher forward to dig trenches, thereby reducing labor costs and improving trenching efficiency. However, the weight of the trencher is fixed, and the trenching pressure cannot be adjusted according to the actual paddy field soil quality, and the scope of application is narrow. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above and / or existing problems in the existing trenching, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is the technical problem that the trenching counterweight in the prior art is not adjustable. In the present invention, the weight of the trench opener itself can be adjusted according to the field conditions to meet the trenching counterweight requirements of different fields.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an unmanned paddy field trenching machine, comprising: The walking assembly comprises a walking frame, and fixed brackets are respectively fixed on the left and right sides of the walking frame; The furrowing assembly comprises furrow openers respectively connected to fixed brackets, wherein the furrow openers have upward mounting openings for conveniently adjusting the counterweight of the furrow openers, and a plurality of vertical poles are arranged on the upper side of the furrow openers, and the upper sides of the vertical poles are movably connected to the fixed brackets.

[0007] A Beidou navigation system is arranged on the walking component (it is a prior art and will not be described in detail in this application). The trenching operation path is set by the Beidou navigation system. During operation, the walking component automatically moves forward according to the set trenching operation path, driving the trench opener to trench, so as to realize unmanned trenching. Before operation, the overall weight of the trench opener can be adjusted according to the soil conditions of the paddy field. Specifically, the corresponding counterweight is installed in the trench opener through the installation port to adjust the overall weight of the trench opener, realize the adjustment of the trenching pressure, adapt to different trenching in paddy fields, and have a wider range of applications.

[0008] As a preferred solution of the unmanned paddy field trenching machine of the present invention, the position of the trenching component in the left and right directions is adjustable.

[0009] As a preferred solution of the unmanned paddy field trenching machine described in the present invention, wherein: a horizontally arranged guide beam is fixedly connected to the fixed bracket, a position adjustment seat is slidably connected to the guide beam, and a vertical pole is fixedly connected to the lower end of the position adjustment seat.

[0010] As a preferred solution of the unmanned paddy field trenching machine described in the present invention, wherein: the guide beam is fixedly connected to a position adjustment motor at one end close to the walking frame in the left and right directions, and the position adjustment motor is connected to a position adjustment screw rod, and the upper sides of the left and right ends of the trenching opener are fixed with adjustment plates fixed to the lower side of the position adjustment seat, and the adjustment plates are threadedly connected to the corresponding position adjustment screw rods.

[0011] As a preferred embodiment of the unmanned paddy field trencher described in the present invention, at least one group of limiting units is fixed on the inner side of the trencher on the left and right sides of the installation port, the limiting unit includes two limiting parts arranged at intervals in the front and rear directions, a counterweight space for accommodating the counterweight is formed between the two limiting parts, a plurality of first slots are arranged on the front limiting part, a plurality of second slots staggered in the height direction with the first slots are arranged on the rear limiting part, a moving block that can move forward and backward is connected between the front side of the front limiting part and the inner side of the front end of the trencher, and between the rear side of the rear limiting part and the inner side of the rear end of the trencher, a plurality of first plug-in parts corresponding one-to-one to the first slots are arranged on one end of the front moving block relative to the limiting part, a plurality of second plug-in parts corresponding one-to-one to the second slots are arranged on one end of the rear moving block relative to the second limiting part, and the first plug-in parts can be inserted into the corresponding first slots and the second plug-in parts can be inserted into the corresponding second slots, respectively.

[0012] As a preferred solution of the unmanned paddy field trencher of the present invention, the first plug-in portion and the second plug-in portion can extend into the counterweight space at the same time.

[0013] As a preferred solution of the unmanned paddy field trencher of the present invention, the moving block is connected with a first pressure rod that can be raised and lowered, and the pressure rod can press on the upper side of the counterweight at the same time.

[0014] As a preferred embodiment of the unmanned paddy field trenching machine described in the present invention, the left and right sides of the trenching opener are respectively rotatably connected with a driving wheel and a driven wheel spaced apart in the front and rear directions, the driving wheel is connected to the driven wheel via a transmission member, the upper end of the front part of the transmission member and the lower end of the rear part of the transmission member are respectively fixedly connected with a first sliding connecting plate and a second sliding connecting plate, the front and rear parts of the left and right ends of the trenching opener are respectively provided with a first sliding groove and a second sliding groove, the first sliding connecting plate passes through the first sliding groove and is connected to the front moving block, and the second sliding connecting plate passes through the second sliding groove and is connected to the rear moving block.

[0015] As a preferred scheme of the unmanned paddy field trenching machine described in the present invention, the inner side of the trenching device in front of the front moving block and the inner side of the trenching device behind the rear moving block are respectively fixedly connected with a fixed sleeve, and the fixed sleeve is rotatably connected to an end of the fixed sleeve away from the corresponding moving block, and the rotating sleeve is rotatably connected to the rotating sleeve. The outer periphery of the rotating sleeve is provided with two slide grooves symmetrically arranged about the central axis of the rotating sleeve, and the inner side of the fixed sleeve is provided with two spiral spiral grooves symmetrically arranged about the central axis of the rotating sleeve, and the outer side of the rotating movable sleeve in the fixed sleeve is fixed with a connecting column corresponding to the slide groove one by one. The outer end of the connecting column is inserted into the corresponding spiral groove through the slide groove, the rotating movable sleeve outside the front fixed sleeve is rotatably connected to the first sliding connecting plate, and the rotating movable sleeve outside the rear fixed sleeve is rotatably connected to the second sliding connecting plate, and the end of the front rotating sleeve extending backward outside the fixed sleeve and the end of the rear rotating sleeve extending forward outside the fixed sleeve are both connected with a transmission screw, the moving block is threadedly connected to the corresponding transmission screw, and the moving block is slidably connected to the inner side of the trenching opener.

[0016] As a preferred solution of the unmanned paddy field trenching machine described in the present invention, the moving block is fixedly connected to a synchronous moving seat sleeved on the transmission screw on the side away from the corresponding limiting portion, the synchronous moving seat is rotatably connected to a synchronous rotating sleeve slidably connected to the transmission screw, the synchronous rotating sleeve is provided with a spiral lifting transmission groove, the synchronous moving seat is provided with a vertically arranged lifting sink groove, the lower part of the pressure rod is just slidably connected to the synchronous moving seat via the lifting sink groove, the pressure rod is fixedly connected to one end of the synchronous rotating sleeve relative to the synchronous rotating sleeve with a transmission column that can just slide along the lifting transmission groove, and when the moving block moves toward the direction of the limiting portion, the pressure rod descends.

[0017] The beneficial effects of the present invention are as follows: before operation, the deadweight of the furrow opener can be adjusted according to the soil conditions of the field. When there is no need to increase the counterweight, no action is required. When it is necessary to increase the counterweight, a counterweight of appropriate height is selected to be inserted between two limit parts spaced apart at front and rear intervals, so that the driving wheel rotates, and the moving block moves in the direction of the corresponding limit part. The first plug-in part and the second plug-in part are simultaneously inserted into the plug-in sink groove of the counterweight, and at the same time, the transmission screw drives the synchronous rotating sleeve to rotate, and the pressure rod descends. When the pressure rod is pressed on the upper end of the counterweight, the driving wheel stops rotating, and the counterweight is reliably installed in the furrow opener, so as to realize the adjustment of the overall weight of the furrow opener, that is, the adjustment of the furrowing pressure, and meet the furrowing requirements of different field soils. In addition, double furrowing can be realized at one time, and the interval between the furrow openers at both ends of the walking frame can be adjusted according to actual operation needs to realize the adjustment of the furrowing spacing. It can be applied to the work of digging furrows in paddy fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 The three-dimensional structure of an unmanned paddy field trencher Figure 1 .

[0019] Figure 2 for Figure 1 A partial enlarged structural diagram in the middle.

[0020] Figure 3 for Figure 1 A partial enlarged structural diagram of point B in the middle.

[0021] Figure 4 The three-dimensional structure of an unmanned paddy field trencher Figure 2 .

[0022] Figure 5 for Figure 4 A partial enlarged structural diagram of point C in the middle.

[0023] Figure 6 The three-dimensional structure of an unmanned paddy field trencher Figure 3 .

[0024] Figure 7 for Figure 6 A partial enlarged structural diagram of point D in the middle.

[0025] Figure 8 The three-dimensional structure of an unmanned paddy field trencher Figure 4 .

[0026] Fig. 9 for Figure 8 A partial enlarged structural diagram at point E in the middle.

[0027] Fig.10 The three-dimensional structure of an unmanned paddy field trencher Figure 5 .

[0028] Fig.11 for Fig.10 A partial enlarged structural diagram of point F in the middle.

[0029] Fig.12 It is a three-dimensional structural diagram of the fixed sleeve, the rotating sleeve and the rotating movable sleeve connected together (the fixed sleeve is set to a transparent state) in the present invention.

[0030] Fig.13 for Fig.12 A partial enlarged structural diagram of point G in the middle.

[0031] Fig.14 The local three-dimensional structure under the preferred embodiment of the present invention Figure 1 .

[0032] Fig.15 for Fig.14 A partial enlarged structural diagram of point H in the middle.

[0033] Fig.16 The local three-dimensional structure under the preferred embodiment of the present invention Figure 2 .

[0034] Among them, 100 walking assembly, 101 walking frame, 102 front walking ground wheel, 103 fixed bracket, 104 rear walking ground wheel, 200 trenching assembly, 201 upright pole, 202 transmission member, 203 driven wheel, 204 second sliding connecting plate, 205 trencher, 205a installation port, 206 first sliding connecting plate, 206a-1 moving part, 206a-2 supporting part, 207 driving wheel, 208 adjusting plate, 209 position adjustment seat, 210 position adjustment screw rod, 211 position adjustment motor, 212 fixed sleeve, 212a spiral sinking groove, 213 transmission screw rod, 214 anti-channeling plate, 215 pressure rod, 215a pressing part, 215a-1 guide hole, 216 guide rod, 217 synchronous moving seat, 217a lifting sinking groove, 218 synchronous rotating sleeve, 218a lifting transmission slot, 218b sliding rotating sleeve, 219 transmission column, 220 moving block, 220a first plug-in part, 220b second plug-in part, 221 limiting part, 221a first slot, 221b second slot, 222 driving shaft, 223 transmission bevel gear, 224 driving bevel gear, 225 motor plate, 226 driving motor, 227 driving shaft, 228 rotating moving sleeve, 228a rotating moving ring, 229 connecting column, 230 rotating sleeve, 230a slide slot, 230b transmission shaft, 231 lifting seat, 232 active lifting wheel, 233 lifting motor, 234 fixed plate, 234a first motor bracket, 234b second motor bracket, 235 lifting belt, 236 driven lifting wheel, 237 first lifting screw rod, 238 second lifting screw rod, 239 guide beam, 240 lifting beam. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0038] Example 1 Reference Figure 1 and Figure 7, which is the first embodiment of the present invention, provides an unmanned paddy field trenching machine, which can install corresponding counterweights in the trenching device 205 according to the soil conditions of the field to adjust the trenching pressure.

[0039] An unmanned paddy field trenching machine includes a traveling assembly 100, including a traveling frame 101, and fixed brackets 103 are respectively fixed on the left and right sides of the traveling frame 101; and trenching assemblies 200 for trenching are respectively connected to the two fixed brackets 103.

[0040] Specifically, the trenching assembly 200 includes trench openers 205 respectively connected to the fixed bracket 103, the trench openers 205 have an upward mounting opening 205a for conveniently adjusting the counterweight of the trench opener 205, a plurality of vertical poles 201 are arranged on the upper side of the trench opener 205, the upper side of the vertical poles 201 are connected to the fixed bracket 103, at least one group of limiting units are fixed to the inner side of the trench opener 205 on the left and right sides of the mounting opening 205a, in this embodiment, a group of limiting units are fixed to the inner side of the trench opener 205 on the left and right sides of the mounting opening 205a, the limiting units include two limiting portions 221 spaced apart in the front-to-back direction, a counterweight space for accommodating a counterweight is formed between the two limiting portions 221, a plurality of first slots 221a are arranged on the front limiting portion 221, and a plurality of first slots 221a and a plurality of first slots 221a are arranged on the rear limiting portion 221 1a is a second slot 221b staggered in the height direction, and a moving block 220 that can move forward and backward is connected between the front side of the front limiting portion 221 and the inner side of the front end of the furrow opener 205, as well as between the rear side of the rear limiting portion 221 and the inner side of the rear end of the furrow opener 205. The front moving block 220 is arranged with a plurality of first plug-in portions 220a corresponding to the first slot 221a at one end relative to the limiting portion 221, and a plurality of second plug-in portions 220b corresponding to the second slot 221b are arranged at one end relative to the second limiting portion 221. After the first plug-in portion 220a is inserted into the corresponding first slot 221a and the second plug-in portion 220b is inserted into the corresponding second slot 221b, they can respectively extend into the counterweight space, and the first plug-in portion 220a and the second plug-in portion 220b can extend into the counterweight space at the same time.

[0041] A plurality of plug-in grooves are respectively provided at the front and rear ends of the counterweight, the front plug-in groove corresponds to the first plug-in portion 220a one-to-one, and the rear plug-in groove corresponds to the second plug-in portion 220b one-to-one; the structure of the walking assembly 100 is the same as that of the walking part of the rice transplanter, and the front and rear ends of the lower part of the walking frame 101 are respectively rotatably connected with the front walking ground wheel 102 and the rear walking ground wheel 104 (the same structure as the walking ground wheel of the walking part of the rice transplanter), such as Figure 1As shown; in addition, the walking component 100 is provided with a Beidou navigation system, through which the walking path of the walking component is planned, and unmanned operation is possible (this is a prior art, not the invention of the present application, and does not affect the understanding of the description by technicians in this field). When the bottom of the counterweight is in contact with the upper side of the partition inside the furrow opener 205, the plug-in sink grooves at the front and rear ends are aligned with the first plug-in portion 220a and the second plug-in portion 220b respectively; when the overall weight of the furrow opener 205 needs to be increased, a counterweight of corresponding height is selected, and the counterweight is vertically inserted into the two counterweight spaces at the left and right ends. The front and rear sides of the counterweight are fitted on the side where the two pairs of limit parts 221 are relatively set, and the left and right sides of the counterweight are respectively fitted on the inner walls of the left and right ends of the furrow opener 205, so that the moving blocks 220 in front and behind the two limit parts 221 move simultaneously in the direction of the corresponding limit parts 221, and the first plug-in part 220a and the second plug-in part 220b are respectively inserted into the corresponding plug-in grooves at the front and rear ends of the counterweight. When inserted to the set depth, the moving block 220 stops moving, and the counterweight cannot move in the furrow opener 205. The counterweight can be reliably installed in the furrow opener 205 to realize the adjustment of the furrowing pressure, and the adjustment is convenient.

[0042] Example 2 Reference Figure 3-Figure 13 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment, and can further facilitate the fixation of the counterweight on the furrow opener 205.

[0043] Specifically, the moving block 220 is connected with a first pressure rod 215 that can be raised and lowered, and the pressure rod 215 can press on the upper side of the counterweight at the same time. The left and right sides of the furrow opener 205 are rotatably connected with a driving wheel 207 and a driven wheel 203 that are spaced apart in the front and rear directions, respectively. The driving wheel 207 is connected to the driven wheel 203 via a transmission member 202. The transmission member 202 in this embodiment is preferably a transmission belt. The upper end of the front part of the transmission member 202 and the lower end of the rear part of the transmission member 202 are fixedly connected with a first sliding connection plate 206 and a second sliding connection plate 204, respectively. The front and rear parts of the left and right ends of the furrow opener 205 are respectively provided with a first sliding groove and a second sliding groove. The first sliding connecting plate 206 passes through the first sliding groove and is connected to the front moving block 220, the second sliding connecting plate 204 passes through the second sliding groove and is connected to the rear moving block 220, a motor plate 225 is fixedly connected to the upper side of the furrow opener 205, a driven shaft is connected between the two driven wheels 203, a driving shaft 222 is connected between the two driving wheels 207, a transmission bevel gear 223 is connected to the driving shaft 222, a driving motor 226 is fixedly connected to the upper side of the motor plate 225, a driving shaft 227 is connected to the driving motor 226, and one end of the driving shaft 227 extending downward into the furrow opener 205 is fixedly connected to a driving bevel gear 224 that cooperates with the transmission bevel gear 223.

[0044] The driving wheel 207 and the driven wheel 203 may also be sprocket wheels, in which case the transmission member 202 is a transmission chain.

[0045] When the counterweight piece contacts the upper side of the partition, the driving motor 226 is activated, the driving shaft 227 drives the driving bevel gear 224 to rotate, the driving bevel gear 224 drives the driving shaft 222 to rotate via the transmission bevel gear 223, the driving shaft 222 drives the driving wheel 207 to rotate, the driving wheel 207 drives the driven wheel 203 to rotate via the transmission member 202, the transmission member 202 drives the first sliding connecting plate 206 and the second sliding connecting plate 204 to move, and the movement direction of the driving motor 226 is controlled so that the first sliding connecting plate 206 drives the front moving block 220 to move in the direction of the front limiting portion 221, and the second sliding connecting plate 204 drives the rear moving block 220 to move in the direction of the rear limiting portion 221. When the first plug-in portion 220a and the second plug-in portion 220b are inserted into the plug-in sink to an appropriate depth, the driving motor 226 stops moving to limit the up and down movement of the counterweight piece.

[0046] Specifically, the inner side of the furrow opener 205 in front of the front moving block 220 and the inner side of the furrow opener 205 behind the rear moving block 220 are respectively fixedly connected with a fixed sleeve 212, and the end of the fixed sleeve 212 away from the corresponding moving block 220 is rotatably connected with a rotating movable sleeve 228, and the fixed sleeve 212 is rotatably connected with a rotating sleeve 230, and the outer periphery of the rotating sleeve 230 is provided with two slide grooves 230a symmetrically arranged about the central axis of the rotating sleeve 230, and the inner side of the fixed sleeve 212 is provided with two spiral helical grooves 212a symmetrically arranged about the central axis of the rotating sleeve 230, and the outer side of the rotating movable sleeve 228 in the fixed sleeve 212 is fixed with a connecting column 229 corresponding to the slide groove 230a one by one, and the outer end of the connecting column 229 passes through the slide groove 230 a is inserted into the corresponding spiral groove 212a, the rotating movable sleeve 228 outside the front fixed sleeve 212 is rotatably connected to the first sliding connecting plate 206, and the rotating movable sleeve 228 outside the rear fixed sleeve 212 is rotatably connected to the second sliding connecting plate 204, the front rotating sleeve 230 extends backward from the fixed sleeve 212 and the rear rotating sleeve 230 extends forward from the fixed sleeve 212. The end is fixedly connected to the transmission shaft 230b, and the transmission shaft 230b is fixedly connected to the transmission screw 213. The end of the transmission screw 213 away from the transmission shaft 230b is rotatably connected to the corresponding limit portion 221, and the moving block 220 is threadedly connected to the corresponding transmission screw 213, and the moving block 220 is slidably connected to the inner side of the furrow opener 205.

[0047] In the initial state, the first plug-in portion 220a and the second plug-in portion 220b are respectively flush with the side opposite to the corresponding limit portion 221. In the initial state, the outer periphery of the transmission screw 213 at one end of the movable block 220 corresponding to the fixed sleeve 212 is smooth and non-circular; when the first sliding connecting plate 206 and the second sliding connecting plate 204 move, the first sliding connecting plate 206 and the second sliding connecting plate 204 respectively drive the corresponding two rotating movable sleeves 228 to move. When the rotating movable sleeve 228 moves, it rotates under the action of the spiral groove 212a, thereby driving the rotating sleeve 230 to rotate. The rotating sleeve 230 drives the transmission screw 213 to rotate via the connecting shaft. The transmission screw 213 drives the movable block 220 to slide along the inner wall of the furrow opener 205. When the movable block 220 moves to a suitable position, the driving motor 226 stops.

[0048] Specifically, a circular rotating movable ring 228a is fixed on the outer periphery of the rotating movable sleeve 228, and the first sliding connecting plate 206 and the second sliding connecting plate 204 have the same structure. The specific structure is explained by taking the first sliding connecting plate 206 as an example. The first sliding connecting plate 206 includes two movable support plates with the same structure, and the two movable support plates are tightly fitted together on the opposite sides. The movable support plate includes a movable part 206a-1, and the end of the movable part 206a-1 extending into the furrow opener 205 is fixed with a support part 206a-2 sleeved on the rotating movable sleeve 228. A circular supporting groove is opened on the side of the support part 206a-2 relative to the rotating movable ring 228a, and the support part 206a-2 is sleeved on the outside of the rotating movable ring 228a through the circular supporting groove. The rotating movable ring 228a is rotatably connected in the two support parts 206a-2, and the two movable parts 206a-1 are fixedly connected together.

[0049] When the first sliding connection plate 206 moves, the two support parts 206a-2 move simultaneously, and the two support parts 206a-2 drive the rotating sleeve 228 to move via the rotating ring 228a, and the rotating sleeve 228 rotates simultaneously.

[0050] Specifically, the moving block 220 is fixedly connected to a synchronous moving seat 217 sleeved on the transmission screw 213 on one side away from the corresponding limiting portion 221, and the transmission screw 213 rotates in the synchronous moving seat 217. The synchronous moving seat 217 is rotatably connected to a synchronous rotating sleeve 218 slidably connected to the transmission screw 213. The synchronous rotating sleeve 218 is provided with a spiral lifting transmission groove 218a. The end of the synchronous rotating sleeve 218 away from the synchronous moving seat 217 is fixed with a sliding rotating sleeve 218b that just slides along the transmission screw 213. The synchronous moving seat 217 is provided with a vertically arranged lifting sink groove 217a, and the lower part of the pressure rod 215 is just slidably connected to the synchronous moving seat 217 through the lifting sink groove 217a. On the upper side, the pressure rod 215 is fixedly connected with a transmission column 219 which can slide just along the lifting transmission groove 218a at one end relative to the synchronous rotating sleeve 218, and the transmission column 219 is fixedly connected with an anti-slip plate 214 which is attached to the synchronous rotating sleeve 218 at one end away from the synchronous moving seat 217. A clamping portion 215a is fixedly provided on the upper part of the pressure rod 215, and a guide hole 215a-1 is provided on the clamping portion 215a. A vertically arranged guide rod 216 is fixedly connected to the upper side of the moving block 220, and the clamping portion 215a is slidably connected to the corresponding guide rod 216 through the guide hole 215a-1, thereby further improving the reliability and stability of the lifting and lowering movement of the pressure rod 215. When the guide rod 216 and the moving block 220 move toward the direction of the limiting portion 221, the pressure rod 215 descends.

[0051] In the initial state, the rear side of the front clamping part 215a is flush with the rear side of the front limiting part 221, and the front side of the rear clamping part 215a is flush with the front side of the rear limiting part 221; when the transmission screw 213 rotates, the transmission screw 213 drives the synchronous rotating sleeve 218 to rotate, and the pressure rod 215 descends. When the clamping part 215a is pressed on the upper end of the counterweight, the drive motor 226 stops moving, further avoiding the up and down movement of the furrow opener 205, and each plug-in part is not easily damaged, further improving the reliability of the counterweight installed in the furrow opener 205, thereby realizing the adjustment of the overall weight of the furrow opener 205, that is, realizing the adjustment of the furrowing pressure to meet the furrowing requirements of different field soils.

[0052] Example 3 Reference Figure 1 and Figure 2 , which is the third embodiment of the present invention, is based on the first two embodiments and can further achieve the adjustment of the trenching spacing.

[0053] Specifically, the position of the ditching assembly 200 in the left and right directions is adjustable, the fixed bracket 103 is fixedly connected to a horizontally arranged guide beam 239, the guide beam 239 is slidably connected to a position adjustment seat 209, the lower end of the position adjustment seat 209 is fixedly connected to a vertical pole 201, the height of the vertical pole 201 is higher than the height of the highest counterweight, the guide beam 239 is fixedly connected to a position adjustment motor 211 at one end close to the walking frame 101 in the left and right directions, the position adjustment motor 211 is connected to a position adjustment screw rod 210, and the upper sides of the left and right ends of the ditching device 205 are fixed with adjustment plates 208 fixed to the lower side of the position adjustment seat 209, the adjustment plates 208 are threadedly connected to the corresponding position adjustment screw rod 210, and the end of the position adjustment screw rod 210 away from the position adjustment motor 211 is rotatably connected to the guide beam 239.

[0054] Before operation, the interval between the furrow openers 205 at both ends of the walking frame 101 is adjusted according to the actual operation requirements. Specifically, the position adjustment motor 211 is controlled to operate, the position adjustment screw 210 rotates, and the position adjustment screw 210 drives the furrow opener 205 to move in the left and right directions through the adjustment plate 208. When the spacing between the two furrow openers 205 is adjusted to a suitable distance, the position adjustment motor 211 stops working to adjust the furrowing spacing, which can be suitable for furrowing with different operation requirements; when the walking component 100 moves forward, it drives the two furrow openers 205 to open furrows forward at the same time, realizing one-time double furrowing and improving furrowing efficiency.

[0055] Example 4 Reference Figure 14 to Figure 16 , which is the third embodiment of the present invention, is based on the first three embodiments and can further achieve height adjustment of the furrow opener 205.

[0056] Specifically, the guide beam 239 can make reciprocating linear motion in the height direction, the guide beam 239 is slidably connected to the inner side of the fixed bracket 103, the upper side of the fixed bracket 103 is fixedly connected to a fixed plate 234, the upper side of the fixed plate 234 is fixedly connected to a first motor bracket 234a and a second motor bracket 234b spaced apart in the left-right direction, the upper side of the first motor bracket 234a is fixedly connected to a lifting motor 233, the lifting motor 233 is connected to a first lifting screw rod 237 rotatably connected to the fixed bracket 103, and a second lifting screw rod 238 is rotatably connected between the second motor bracket 234b and the bottom of the fixed bracket 103 The first lifting screw rod 237 and the second lifting screw rod 238 are both threadedly connected to the guide beam 239, and the first lifting screw rod 237 and the second lifting screw rod 238 on the upper side of the fixed plate 234 are respectively fixedly connected with the active lifting wheel 232 and the driven lifting wheel 236, and the active lifting wheel 232 is connected to the driven lifting wheel 236 through the lifting belt 235; the front and rear ends of the guide beam 239 are respectively fixed with lifting beams 240, and the front and rear ends of the position adjustment seat 209 are both slidably connected to the lower side of the lifting beam 240, and the left and right ends of the guide beam 239 and the lifting beam 240 are respectively fixedly connected with the lifting seat 231 slidably connected to the fixed bracket 103.

[0057] Before operation, the bottom of the furrow opener 205 is higher than the bottom of the front walking wheel 102 or the rear walking wheel 104; during operation, that is, when the present application walks into the field to prepare for furrowing, the lifting motor 233 is activated, the first lifting screw rod 237 rotates, the first lifting screw rod 237 drives the active lifting wheel 232 to rotate, the active lifting wheel 232 drives the driven lifting wheel 236 to rotate via the lifting belt 235, the driven lifting wheel 236 drives the second lifting screw rod 238 to rotate, the first lifting screw rod 237 and the second lifting screw rod 238 simultaneously drive the connected guide beam 239, the lifting beam 240 and the lifting seats 231 at both ends to descend, when the furrow opener 205 is lowered to a suitable height, the lifting motor 233 stops operating, and the height adjustment of the furrow opener 205 is realized, so that the travel of the walking assembly 100 is not affected before operation, and the furrowing depth can be adjusted according to actual needs during operation.

[0058] 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 preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An unmanned paddy field trenching machine, characterized in that: include, The walking assembly (100) comprises a walking frame (101), and the left and right sides of the walking frame (101) are respectively fixedly connected with fixed brackets (103); The furrowing assembly (200) comprises furrow openers (205) respectively connected to the fixed brackets (103), wherein the furrow openers (205) have upwardly facing mounting openings (205a) for conveniently adjusting the counterweight of the furrow openers (205), and a plurality of vertical poles (201) are arranged on the upper side of the furrow openers (205), and the upper sides of the vertical poles (201) are movably connected to the fixed brackets (103).

2. The unmanned paddy field trenching machine according to claim 1, characterized in that: The position of the trenching assembly (200) in the left-right direction is adjustable.

3. The unmanned paddy field trenching machine according to claim 2, characterized in that: The fixed bracket (103) is connected to a horizontally arranged guide beam (239), a position adjustment seat (209) is slidably connected to the guide beam (239), and a vertical rod (201) is fixedly connected to the lower end of the position adjustment seat (209).

4. The unmanned paddy field trenching machine according to claim 3, characterized in that: The guide beam (239) is fixedly connected to one end of the walking frame (101) in the left-right direction with a position adjustment motor (211), and the position adjustment motor (211) is connected to a position adjustment screw (210). The upper sides of the left and right ends of the furrow opener (205) are fixed with adjustment plates (208) fixed to the lower side of the position adjustment seat (209), and the adjustment plates (208) are threadedly connected to the corresponding position adjustment screw (210).

5. The unmanned paddy field trenching machine according to any one of claims 1 to 3, characterized in that: At least one set of limiting units is fixed to the inner side of the furrow opener (205) on the left and right sides of the installation opening (205a), and the limiting units include two limiting parts (221) arranged at intervals in the front-to-back direction, and a counterweight space for accommodating a counterweight is formed between the two limiting parts (221), a plurality of first slots (221a) are arranged on the front limiting part (221), and a plurality of second slots (221b) are arranged on the rear limiting part (221) and are staggered in the height direction with respect to the first slots (221a), and a plurality of second slots (221b) are arranged between the front side of the front limiting part (221) and the inner side of the front end of the furrow opener (205) and the rear side and A movable block (220) capable of moving forward and backward is connected to the inner side of the rear end of the furrow opener (205); a plurality of first plug-in parts (220a) corresponding to the first slots (221a) are arranged at one end of the front movable block (220) relative to the limiting part (221); a plurality of second plug-in parts (220b) corresponding to the second slots (221b) are arranged at one end of the rear movable block (220) relative to the second limiting part (221); the first plug-in parts (220a) can be inserted into the corresponding first slots (221a) and the second plug-in parts (220b) can be inserted into the corresponding second slots (221b) respectively.

6. The unmanned paddy field trenching machine according to claim 5, characterized in that: The first plug-in portion (220a) and the second plug-in portion (220b) can extend into the counterweight space at the same time.

7. The unmanned paddy field trenching machine according to claim 6, characterized in that: The moving block (220) is connected to a first pressing rod (215) that can be raised and lowered, and the pressing rod (215) can press on the upper side of the counterweight at the same time.

8. The unmanned paddy field trenching machine according to claim 7, characterized in that: The left and right sides of the furrow opener (205) are rotatably connected with a driving wheel (207) and a driven wheel (203) spaced apart in the front and rear directions, respectively; the driving wheel (207) is connected with the driven wheel (203) via a transmission member (202); the upper end of the front part of the transmission member (202) and the lower end of the rear part of the transmission member (202) are fixedly connected with a first sliding connection plate (206) and a second sliding connection plate (204), respectively; the front and rear parts of the left and right ends of the furrow opener (205) are respectively provided with a first sliding groove and a second sliding groove; the first sliding connection plate (206) passes through the first sliding groove and is connected to a front moving block (220); the second sliding connection plate (204) passes through the second sliding groove and is connected to a rear moving block (220).

9. The unmanned paddy field trenching machine according to claim 8, characterized in that: The inner side of the furrow opener (205) in front of the front moving block (220) and the inner side of the furrow opener (205) behind the rear moving block (220) are respectively fixedly connected with a fixed sleeve (212), and the end of the fixed sleeve (212) away from the corresponding moving block (220) is rotatably connected with a rotating movable sleeve (228), and the fixed sleeve (212) is rotatably connected with a rotating sleeve (230), and the outer periphery of the rotating sleeve (230) is provided with two sliding grooves (230a) symmetrically arranged about the central axis of the rotating sleeve (230), and the inner side of the fixed sleeve (212) is provided with two spiral sinking grooves (212a) symmetrically arranged about the central axis of the rotating sleeve (230), and the outer side of the rotating movable sleeve (228) in the fixed sleeve (212) is fixed with a one-to-one sliding groove (230a) A corresponding connecting column (229), the outer end of which is inserted into the corresponding spiral groove (212a) through a slide groove (230a), the rotating movable sleeve (228) outside the front fixed sleeve (212) is rotatably connected to the first sliding connecting plate (206), and the rotating movable sleeve (228) outside the rear fixed sleeve (212) is rotatably connected to the second sliding connecting plate (204), the front rotating sleeve (230) extending backward from the fixed sleeve (212) and the rear rotating sleeve (230) extending forward from the fixed sleeve (212) are both connected to a transmission screw (213), the moving block (220) is threadedly connected to the corresponding transmission screw (213), and the moving block (220) is slidably connected to the inner side of the furrow opener (205).

10. The unmanned paddy field trenching machine according to claim 9, characterized in that: A synchronous moving seat (217) sleeved on the transmission screw (213) is fixedly connected to the side of the moving block (220) away from the corresponding limiting portion (221); a synchronous rotating sleeve (218) slidably connected to the transmission screw (213) is rotatably connected to the synchronous moving seat (217); a spiral lifting transmission groove (218a) is provided on the synchronous rotating sleeve (218); a vertically arranged lifting sink groove (217a) is provided on the synchronous moving seat (217); the lower part of the pressure rod (215) is slidably connected to the synchronous moving seat (217) via the lifting sink groove (217a); one end of the pressure rod (215) relative to the synchronous rotating sleeve (218) is fixedly connected to a transmission column (219) that can slide along the lifting transmission groove (218a); when the moving block (220) moves toward the direction where the limiting portion (221) is located, the pressure rod (215) descends.

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