A paddy field leveling machine

Abstract

The invention discloses a paddy field leveling machine, which comprises a frame, a mudguard which can swing left and right or make linear motion in the height direction is connected to the rear of the frame, a first lifting block and a second lifting block which can make reciprocating linear motion in the height direction and are arranged at intervals in the left and right directions are connected to the rear side of the frame, a rear end of the first lifting block is rotatably connected to the frame, a rear end of the second lifting block is rotatably connected to a sliding connection block, the sliding connection block is slidably connected to the mudguard, and a total leveling plate which can swing up and down is hinged at the lower end of the mudguard; the invention can both adjust the height of the mudguard and realize the inclination of the mudguard in the left and right directions.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a paddy field leveler. Background Art

[0002] The paddy field leveler is used to level the farmland. The paddy field leveler in the traditional technology includes a frame, a mudguard is fixedly connected to the rear end of the frame, and a general leveling plate is fixedly connected to the lower end of the mudguard. The general leveling plate is prone to tilt during operation, and the level of the general leveling plate cannot be adjusted. In order to solve the technical problem that the level of the general leveling plate cannot be adjusted during operation, the prior art discloses a "paddy field leveler" with a publication number of CN 107529392. B, the announcement date is 2020.01.17, which includes a frame, an automatic leveling device, an angle adjustment device and a drag plate. The frame is connected to a horizontal suspension beam, and a suspension frame for connecting to a tractor is provided at the front of the horizontal suspension beam. The automatic leveling device is connected to the horizontal suspension beam behind the suspension frame, and the drag plate is arranged on the frame corresponding to the horizontal suspension beam directly behind the horizontal suspension beam, and the automatic leveling device drives the drag plate to swing up and down; the drag plate includes a horizontal part and an inclined part, the inclined part is inclined backward, and a total leveling plate parallel to the upper side of the horizontal part is provided at the bottom of the inclined part. The angle adjustment device includes an angle adjustment cylinder, and the center of the total leveling plate in the length direction is connected to one end of the telescopic rod of the angle adjustment cylinder, and a front and rear support seat is provided at the center of the top of the horizontal part, and the fixed end of the angle adjustment cylinder is rotatably connected to the front and rear support seats. Through the setting of the angle adjustment device, the total leveling plate can swing left and right during operation, so that the total leveling plate is always level with the ground, but when the ground height changes, the height of the total leveling plate cannot be adjusted according to the change in ground height. 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-mentioned and / or existing problems in the existing leveling process, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a paddy field leveling machine, which can realize both the angle adjustment and the height adjustment of the total leveling plate, adapt to various terrains, and solve the technical problem of the non-adjustable height of the leveling plate in the prior art.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a paddy field leveling machine, which includes a frame, a mudguard that can swing left and right or make linear motion in the height direction is connected to the rear of the frame, and a first lifting block and a second lifting block that can make reciprocating linear motion in the height direction and are arranged at intervals in the left and right directions are connected to the rear side of the frame, the rear end of the first lifting block is rotatably connected to the frame, and the rear end of the second lifting block is rotatably connected to a sliding connecting block, the sliding connecting block is slidably connected to the mudguard, and the lower end of the mudguard is hinged with a total leveling plate that can swing up and down.

[0007] In order to further achieve horizontality or height adjustment of the leveling plate in the left and right directions, the frame is connected to a first connecting rod and a second connecting rod arranged at intervals in the left and right directions, the lower end of the first connecting rod is hinged with a first linear drive and a first crank, the first crank is hinged at the front end of the fender, the first linear drive is connected to a first telescopic rod that can move back and forth linearly, the end of the first telescopic rod extending outward is hinged to the lower end of the second connecting rod, the lower end of the second connecting rod is also hinged to the second crank and the first connecting rod, the lower end of the first connecting rod is also hinged to the second crank, the end of the first connecting rod away from the first telescopic rod is hinged to a two-way rocker, the end of the two-way rocker away from the first connecting rod is hinged to the second connecting rod, a sliding seat is slidably connected to the fender, and the end of the second connecting rod away from the two-way rocker is hinged to the sliding seat.

[0008] In order to further adjust the horizontality of the leveling plate in the left-right direction, the angle of the first connecting rod is fixed.

[0009] In order to further realize the height adjustment of the leveling plate, the first linear drive is horizontal, and when the first connecting rod actively rotates, the second connecting rod swings synchronously with the first connecting rod, the first connecting rod and the second connecting rod are always parallel, the first crank and the second crank are always parallel, and the fender moves linearly in the height direction.

[0010] In order to further adjust the horizontality and height of the leveling plate in the left and right directions, a driving motor is fixedly connected to the frame, and the upper end of the first connecting rod is connected to the output shaft of the driving motor.

[0011] As a preferred solution of the paddy field leveling machine of the present invention, wherein: the left and right sides and both sides of the rear part of the frame are fixedly connected with guide plates, the guide plates are provided with vertically arranged slide grooves, and the left and right ends of the mud guard are fixed with guide parts, and the guide parts can slide up and down along the corresponding slide grooves.

[0012] In order to further achieve horizontal adjustment of the total leveling plate in the front-to-back direction, a second linear drive is hingedly connected to the upper part of the sliding seat, and a second telescopic rod is connected to the second linear drive, which extends downward at an angle and can perform reciprocating linear motion, and the lower end of the second telescopic rod is hinged to the upper part of the total leveling plate.

[0013] As a preferred solution of the paddy field leveling machine of the present invention, a connecting ear is fixed at the center of the upper side of the total leveling plate, and the second telescopic rod is hinged to the upper part of the connecting ear.

[0014] In order to further increase the flattening width, the upward ends of the total flattening plates on the left and right sides of the connecting ear are provided with sliding openings, and the total flattening plates are slidably connected with the amplifying flattening plates through the corresponding sliding openings. The total flattening plates on the left and right ends of the connecting ear are respectively fixedly connected with amplifying drivers, and the amplifying driver is connected with an amplifying rod capable of reciprocating linear motion, and the end of the amplifying rod extending outward is connected to the end of the amplifying flattening plate away from the connecting ear.

[0015] In order to further improve the reliability of the first lifting block and the second lifting block during lifting, the rear side of the rack is fixedly connected to the vertically arranged first guide rail and the second guide rail, the first lifting block is slidably connected to the first guide rail, and the second lifting block is slidably connected to the second guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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:

[0017] Figure 1 The three-dimensional structure of the present invention Figure 1 .

[0018] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0019] Figure 3 The three-dimensional structure of the present invention Figure 2 .

[0020] Figure 4 for Figure 3 A partial enlarged view of point B in the middle.

[0021] Figure 5 The three-dimensional structure of the present invention Figure 3 .

[0022] Figure 6 The three-dimensional structure of the present invention Figure 4 .

[0023] Figure 7 for Figure 6 A partial enlarged view of point C in the middle.

[0024] Figure 8 for Figure 6 A partial enlarged view of point D in the middle.

[0025] Fig. 9 The three-dimensional structure of the present invention Figure 5 .

[0026] Fig.10 The three-dimensional structure of the present invention Figure 6 .

[0027] In the figure, 1 is a frame, 2 is a rotary tillage device, 3 is a first guide rail, 4 is a second linear drive, 5 is a second telescopic rod, 6 is a mudguard, 601 is a guide part, 7 is a second guide rail, 8 is a total leveling plate, 801 is a connecting ear, 9 is a second lifting block, 10 is a sliding connecting block, 11 is a driving motor, 12 is a first connecting rod, 13 is a first crank, 14 is a second crank, 15 is a second connecting rod, 16 is a first telescopic rod, 17 is a two-way rocker, 18 is a first linear drive, 19 is a second connecting rod, 20 is a first connecting rod, 21 is an amplifying leveling plate, 22 is an amplifying rod, 23 is an amplifying driver, 24 is a first lifting block, 25 is an output shaft, 26 is a guide plate, 27 is a sliding seat, a is a sliding groove, b is a sliding groove, and c is a sliding opening. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] 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. Example 1

[0031] Reference Figure 1 to Figure 5 and Figure 8, which is the first embodiment of the present invention, provides a paddy field leveling machine with a compact and ingenious structure, which can adjust the inclination of the total leveling plate 8 in the left and right directions and the horizontality in the front and back directions.

[0032] A paddy field leveling machine includes a frame 1, a mudguard 6 capable of swinging left and right or moving linearly in height is connected to the rear of the frame 1, a first lifting block 24 and a second lifting block 9 capable of reciprocating linear movement in height and spaced apart in left and right directions are connected to the rear side of the frame 1, a rear end of the first lifting block 24 is rotatably connected to the frame 1, a connecting shaft is fixed to the front side of the frame 1, the first lifting block 24 is rotatably connected to the connecting shaft (the connecting shaft is not shown in the accompanying drawings, which is a prior art and does not affect the understanding of the solution by technicians in this field), a rear end of the second lifting block 9 is rotatably connected to a sliding connecting block 10, the sliding connecting block 10 is slidably connected to the mudguard 6, the mudguard 6 is provided with a sliding groove a, the sliding connecting block 10 is slidably connected to the mudguard 6 via the sliding groove a, and the lower end of the mudguard 6 is hinged with a total leveling plate 8 capable of swinging up and down.

[0033] In order to further adjust the inclination of the total leveling plate 8 in the left and right directions, the frame 1 is connected with a first connecting rod 12 and a second connecting rod 15 which are spaced apart in the left and right directions. The first connecting rod 12 is on the left side of the second connecting rod 15. The lower end of the first connecting rod 12 is hinged with a first linear drive 18 and a first crank 13. The first crank 13 is hinged at the front end of the fender 6. The first linear drive 18 is connected with a first telescopic rod 16 which can move back and forth linearly. One end of the first telescopic rod 16 extending outward is connected to the second connecting rod 15. The lower end of the second connecting rod 15 is hinged, the lower end of the second connecting rod 15 is also hinged to the second crank 14 and the first connecting rod 20, the end of the first connecting rod 20 away from the first telescopic rod 16 is hinged to the two-way rocker 17, the end of the two-way rocker 17 away from the first connecting rod 20 is hinged to the second connecting rod 19, the fender 6 is slidably connected to a sliding seat 27, the end of the second connecting rod 19 away from the two-way rocker 17 is hinged to the sliding seat 27, the center of the fender 6 can always slide along the sliding seat 27, and the angle of the first connecting rod 12 is fixed.

[0034] When the walking device turns and causes the frame 1 to tilt relative to the ground, taking the tilting to the left as an example, the total leveling plate 8 will also tilt to the left as a whole, that is, the left end of the total leveling plate 8 is lower and the right end is higher, and the first linear drive 18 is controlled to move, so that the first telescopic rod 16 extends outward, and the first telescopic rod 16 pushes the second connecting rod 15 and the second connecting rod 19 to swing in the direction away from the first connecting rod 12, and the fender 6 rotates around the center of the first lifting block 24, and the second connecting rod 19 pushes the right end of the fender 6 to rotate downward, and the left end of the fender 6 rotates upward. When the bottom side of the total leveling plate 8 is horizontal with the ground, the first linear drive 18 stops moving, so that the inclination of the total leveling plate 8 is adjusted during the tilting of the frame 1, so that the bottom of the total leveling plate 8 is always horizontal with the ground, thereby improving the leveling effect.

[0035] In order to further improve the reliability of the rotation of the mudguard 6, the left and right sides of the rear part of the frame 1 are fixedly connected with guide plates 26, and a vertically arranged slide groove b is opened on the guide plate 26. The left and right ends of the mudguard 6 are fixed with guide parts 601, and the guide parts 601 can slide up and down along the corresponding slide groove b.

[0036] In order to further realize the horizontal adjustment of the total leveling plate 8 in the front-to-back direction, a second linear drive 4 is hinged on the upper part of the sliding seat 27, and a second telescopic rod 5 is connected to the second linear drive 4, which extends downward and can perform reciprocating linear motion. The lower end of the second telescopic rod 5 is hinged to the upper part of the total leveling plate 8; a connecting ear 801 is fixed at the center of the upper side of the total leveling plate 8, and the second telescopic rod 5 is hinged to the upper part of the connecting ear 801.

[0037] When it is necessary to adjust the horizontality of the total leveling plate 8 in the front-to-back direction, the second linear drive 4 is activated, the second telescopic rod 5 moves, and the second telescopic rod 5 drives the total leveling plate 8 to swing in the front-to-back direction. When the total leveling plate 8 is adjusted to the required angle in the front-to-back direction, the second linear drive 4 stops moving, thereby realizing the adjustment of the horizontality of the total leveling plate 8 in the front-to-back direction.

[0038] In order to further improve the reliability of the first lifting block 24 and the second lifting block 9 during lifting, the rear side of the rack 1 is fixedly connected to the vertically arranged first guide rail 3 and the second guide rail 7, the first lifting block 24 is slidably connected to the first guide rail 3, and the second lifting block 9 is slidably connected to the second guide rail 7.

[0039] When the height of the fender 6 is adjusted or the inclination in the left-right direction is adjusted, the first lifting block 24 and the second lifting block 9 just slide along the first guide rail 3 and the second guide rail 7 respectively.

[0040] In this embodiment, during specific implementation, the frame 1 in the utility model is fixedly connected to the rear end of the rotary tillage device 2, and the rotary tillage device 2 first tills and loosens the soil of the field, and the present application levels the field after the soil is loosened. Among them, the rotary tillage device 2 is a prior art, and its specific structure for loosening the soil is not repeated in this application. Example 2

[0041] Reference Fig. 9 and Fig.10 , which is the second embodiment of the present invention, provides a paddy field leveling machine, which can further realize the height adjustment of the total leveling plate 8.

[0042] Specifically, when the first linear drive 18 is horizontal and the first connecting rod 12 actively rotates, the second connecting rod 15 swings synchronously with the first connecting rod 12, the first connecting rod 12 and the second connecting rod 15 are always parallel, the first crank 13 and the second crank 14 are always parallel, and the fender 6 makes a linear motion in the height direction.

[0043] When the first linear drive 18 is not in motion and is in a horizontal state, the first connecting rod 12 and the second connecting rod 15 are parallel, and the first connecting rod 20 and the second connecting rod 19 are parallel; when the height of the mudguard 6 needs to be adjusted, the first connecting rod 12 is controlled to rotate, and the first connecting rod 12 drives the second connecting rod 15 to rotate through the first linear drive 18, and at the same time drives the first connecting rod 20 to swing, and the second connecting rod 15 drives the second connecting rod 19 to swing, and the second connecting rod 19 drives the guide plate 26 to rise and fall in turn through the two-way rocker 17 and the third connecting rod, and the guide parts 601 on the left and right sides of the mudguard 6 slide along the slide groove b, and at the same time, the center of the mudguard 6 slides up and down along the guide plate 26, and when the mudguard 6 is lifted to a suitable height, the drive motor 11 stops moving; the state of the mudguard 6 when it is lowered is as follows Fig. 9 As shown, the state of the fender 6 when it rises is as follows Fig.10 As shown; in specific implementation, the height of the fender 6 is adjusted according to the change in ground height, so that the leveling plate fits on the ground to improve the leveling effect. Example 3

[0044] Reference Figure 3 , which is the third embodiment of the present invention, this embodiment provides a paddy field leveling machine, which can further realize the inclination or height adjustment of the total leveling plate 8 in the left and right directions.

[0045] A paddy field leveling machine, in order to further achieve horizontality and height adjustment of the leveling plate in the left and right directions, a drive motor 11 is fixedly connected to the frame 1, and the upper end of the first connecting rod 12 is connected to the output shaft 25 of the drive motor 11.

[0046] The driving motor 11 is a self-locking motor. When the driving motor 11 stops working, the output shaft 25 does not move; when the inclination of the mudguard 6 in the left and right directions needs to be adjusted, the driving motor 11 is in an inactive state; when the height of the mudguard 6 needs to be adjusted, the first horizontal driver is first made horizontal, the driving motor 11 is activated, the mudguard 6 is raised and lowered to an appropriate height, and the driving motor 11 stops. By controlling the action of the driving motor 11, the height adjustment of the mudguard 6 is achieved. Example 4

[0047] Reference Figure 6 and Figure 7 , which is the third embodiment of the present invention, provides a paddy field leveling machine that can further increase the leveling width.

[0048] Specifically, the upward ends of the total leveling plates 8 on the left and right sides of the connecting ear 801 have sliding openings c, and the total leveling plates 8 are slidably connected to the amplifying leveling plates 21 through the corresponding sliding openings c. The total leveling plates 8 at the left and right ends of the connecting ear 801 are respectively fixedly connected to amplifying drivers 23, and the amplifying driver 23 is connected to an amplifying rod 22 capable of reciprocating linear motion, and the end of the amplifying rod 22 extending outward is connected to the end of the amplifying leveling plate 21 away from the connecting ear 801.

[0049] In addition, in the front and back directions of the present application, the forward direction of the frame 1 is the front, the direction opposite to the forward direction of the frame 1 is the rear, and the direction facing the front side of the frame 1 is used as a reference. The left side is the left in the present application, and the right side is the right in the present application. The first linear drive 18, the second linear drive 4 and the amplification drive 23 in the present application are preferably hydraulic cylinders.

[0050] 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. A paddy field leveling machine, comprising a frame (1), characterized in that: A fender (6) capable of swinging left and right or performing linear motion in the height direction is connected to the rear of the frame (1); a first lifting block (24) and a second lifting block (9) capable of reciprocating linear motion in the height direction and spaced apart in the left and right directions are connected to the rear side of the frame (1); a front end of the first lifting block (24) is rotatably connected to the frame (1); a rear end of the second lifting block (9) is rotatably connected to a sliding connection block (10); the sliding connection block (10) is slidably connected to the fender (6); a total leveling plate (8) capable of swinging up and down is hingedly connected to the lower end of the fender (6); a first connecting rod (12) and a second connecting rod (15) spaced apart in the left and right directions are connected to the frame (1); a first linear drive (18) and a first crank (13) are hingedly connected to the lower end of the first connecting rod (12); the first crank (13) is hingedly connected to the front end of the fender (6); a linear actuator (18) capable of reciprocating linear motion is connected to the first linear drive (18); A movable first telescopic rod (16), one end of the first telescopic rod (16) extending outward is hinged to the lower end of the second connecting rod (15), the lower end of the second connecting rod (15) is also hinged to a second crank (14) and a first connecting rod (20), one end of the first connecting rod (20) away from the first telescopic rod (16) is hinged to a two-way rocker (17), one end of the two-way rocker (17) away from the first connecting rod (20) is hinged to a second connecting rod (19), and the fender (6) The upper slide is connected with a sliding seat (27), one end of the second connecting rod (19) away from the two-way rocker (17) is hinged on the sliding seat (27), the first linear drive (18) is horizontal, when the first connecting rod (12) actively rotates, the second connecting rod (15) swings synchronously with the first connecting rod (12), the first connecting rod (12) and the second connecting rod (15) are always parallel, the first crank (13) and the second crank (14) are always parallel, and the fender (6) moves linearly in the height direction.

2. The paddy field leveling machine according to claim 1, characterized in that: A driving motor (11) is fixedly connected to the frame (1), and the upper end of the first connecting rod (12) is connected to an output shaft (25) of the driving motor (11).

3. The paddy field leveling machine according to claim 1 or 2, characterized in that: The left and right sides and both sides of the rear of the frame (1) are fixedly connected with guide plates (26), and the guide plates (26) are provided with vertically arranged sliding grooves (b). The left and right ends of the fender (6) are fixed with guide parts (601), and the guide parts (601) can slide up and down along the corresponding sliding grooves (b).

4. The paddy field leveling machine according to claim 1 or 2, characterized in that: The upper part of the sliding seat (27) is hinged with a second linear drive (4), and the second linear drive (4) is connected with a second telescopic rod (5) extending downwardly and capable of reciprocating linear motion, and the lower end of the second telescopic rod (5) is hinged to the upper part of the main flattening plate (8).

5. The paddy field leveling machine according to claim 4, characterized in that: A connecting ear (801) is fixed at the center of the upper side of the main flattening plate (8), and the second telescopic rod (5) is hinged to the upper part of the connecting ear (801).

6. The paddy field leveling machine according to claim 5, characterized in that: The upward ends of the total leveling plates (8) on the left and right sides of the connecting ear (801) are each provided with a sliding opening (c); the total leveling plates (8) are slidably connected to the amplifying leveling plates (21) via the corresponding sliding openings (c); the total leveling plates (8) on the left and right ends of the connecting ear (801) are respectively fixedly connected to an amplifying driver (23); the amplifying driver (23) is connected to an amplifying rod (22) capable of reciprocating linear motion; the end of the amplifying rod (22) extending outward is connected to an end of the amplifying leveling plate (21) away from the connecting ear (801).

7. The paddy field leveling machine according to claim 1 or 2, characterized in that: The rear side of the frame (1) is fixedly connected to a first guide rail (3) and a second guide rail (7) which are vertically arranged; the first lifting block (24) is slidably connected to the first guide rail (3); and the second lifting block (9) is slidably connected to the second guide rail (7).

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