Self-adapting floating rotary cultivator

Abstract

The application discloses a self-adaptive floating rotary cultivator, which comprises a crawler frame, a rotary cultivator, and a hanging rod and an arc-shaped sliding limiting block connected between the rotary cultivator and the crawler frame. The hanging rod and the arc-shaped sliding limiting block are movably connected at the joint of the rotary cultivator and the crawler frame. When the crawler frame walks on uneven ground, for example, when the crawler frame goes from a low area to a high area, the rotary cultivator is still in the low area, and the crawler frame is in the high area. The whole crawler frame, including the arc-shaped sliding limiting block connected with the rotary cultivator, is inclined upward relative to the rotary cultivator. At this time, the arc-shaped sliding limiting block moves relative to the hanging rod, so that the hanging rod moves downward in the arc-shaped sliding limiting block, and self-adjustment is completed. At this time, the blades of the rotary cultivator still contact the land in the low area, and the ploughing work is carried out.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural machinery, and particularly relates to a self-adaptive floating rotary cultivator. BACKGROUND

[0002] The rotary cultivator is an agricultural machine which is provided with forward power by a matched agricultural vehicle (such as a tractor), drives the rotary blade to turn over the soil and break the soil and weeds, throws the cut soil block backward to collide with the mud cover, breaks the soil block further, and then the land is dragged and scraped flat by the land leveling plate, so that the plowing and harrowing operations are completed at one time. The rotary cultivator can complete the basic operations such as plowing, harrowing and leveling on the terrains such as plains, hills and mountains.

[0003] However, the existing rotary cultivator is affected by the rotary cultivator shaft integrated type, so that the rotary cultivator can only plow and harrow the land in the same plane. When the tractor dragging the rotary cultivator reaches the uneven ground, the rotary cultivator is pulled up or down synchronously through the connecting point, so that the tractor reaches the protruding area one step ahead of the rotary cultivator compared with the initial area. At this time, the position of the tractor will move upward, and the rotary cultivator will also move upward, so that the rotary cultivator in the concave area (relative to the concave area of the position of the tractor at this time) is separated from the ground, so that the rotary cultivator cannot effectively plow and harrow the concave area. When facing the hills, mountains or pits on the flat ground, the rotary cultivator cannot effectively automatically adjust to complete the efficient plowing and harrowing operation. The rotary cultivator can only adjust the advancing angle of the rotary cultivator multiple times to perform multiple rotary cultivation operations on different planes, so as to effectively plow and harrow the pits, slopes and other uneven areas. This undoubtedly limits the application range of the rotary cultivator and reduces the plowing and harrowing efficiency of the rotary cultivator. SUMMARY

[0004] The present application provides a self-adaptive floating rotary cultivator which has the advantages that the arc-shaped sliding limiting block moves the rotary cultivator through the hanging rod, the hanging rod is self-adaptively adjusted in the arc-shaped sliding limiting block, the part of the mounting frame losing the soil supporting force will be inclined, and the inclined rotary blade plows and harrows the uneven land, so as to solve the problem of single plowing and harrowing range of the existing rotary cultivator.

[0005] In order to achieve the above object, the technical scheme adopted by the present application is as follows: an adaptive floating rotary cultivator comprises a crawler frame and a rotary cultivator, a fixed seat is arranged on one side of the top end of the crawler frame, two symmetrical hydraulic cylinders I are arranged on the fixed seat, a hydraulic rod I is arranged in the hydraulic cylinder I, a connecting rod is arranged at the end of the hydraulic rod I away from the fixed seat, and an arc-shaped sliding limiting block is arranged at the end of the connecting rod away from the hydraulic rod I; the rotary cultivator comprises a mounting frame, rotary cultivator blades in the mounting frame, balance bars arranged at the bottom of both sides of the mounting frame, and a supporting plate arranged on the side of the mounting frame away from the crawler frame; a uniform suspension plate is arranged on one side of the top end of the mounting frame close to the arc-shaped sliding limiting block, a hanging rod is arranged on the suspension plate, the hanging rod is sleeved in the arc-shaped sliding limiting block, and the hanging rod is used for moving along with the crawler frame; a limiting hinged plate is hinged between the supporting plate and the mounting frame, and the limiting hinged plate is used for adjusting the inclination angle of the supporting plate; the supporting plate is inclined to the horizontal plane, the bottom end of the supporting plate contacts the ground, and the supporting plate is used for smoothing the soil turned over by the rotary cultivator blades; the balance bar is in a U-shaped form, and the bottom of the balance bar contacts the ground, and the balance bar is used for providing upward supporting force to the mounting frame.

[0006] Preferably, the arc-shaped sliding limiting block is arranged to be inclined downward, the cross section of the arc-shaped sliding limiting block is in an arc shape, an arc-shaped hole is formed in the arc-shaped sliding limiting block, the arc-shaped hole is used for adaptive adjustment of the hanging rod in the arc-shaped sliding limiting block, and the opposite ends of the two adjacent suspension plates close to the arc-shaped sliding limiting block are attached to the two ends of the arc-shaped sliding limiting block, so as to limit the lateral movement of the rotary cultivator.

[0007] Preferably, the rotary cultivator blade comprises blade shafts arranged at both ends of the mounting frame, uniformly distributed blade seats arranged on the blade shafts, and blade pieces arranged on the blade seats in a circumferential uniform manner, the outer side of the blade piece away from the blade shaft is inserted into the ground, the blade piece is in an L shape, the adjacent blade pieces on the same blade seat are reversely arranged, so as to increase the area of the blade piece contacting the soil, and the blade pieces on the adjacent blade seats are arranged in a staggered manner.

[0008] Preferably, the mounting frame is divided into two symmetrical parts from the center, the blade shaft is divided into two symmetrical parts from the center, the supporting plate is divided into two symmetrical parts from the center, the hanging rod is divided into two hinged rods I and II from the center, the opposite ends of the hinged rods I and II are hinged, and gaps exist between the mounting frame, the blade shaft and the supporting plate on both sides.

[0009] Preferably, the connecting rod is combined by a large-diameter cylinder at one end and a small-diameter cylinder at one end, the cross section of the connecting rod is in a T shape, the large-diameter end of the connecting rod is movably sleeved in the hydraulic rod I, so as to avoid that the arc-shaped sliding limiting block hinders the relative inclination of the hinged rods I and II.

[0010] Preferably, two top ends of the balance bar are respectively provided with vertical sliding blocks, the mounting frame is provided with two symmetrical buckle boxes near one end of the balance bar, the buckle boxes are provided with through limiting holes, the sliding blocks are movably sleeved in the limiting holes, top ends of the sliding blocks are fixedly connected with horizontal lifting rods for automatically adjusting the height of the lifting rods according to the contact of the balance bar with the ground, top ends of the mounting frame are provided with two symmetrical hinged seats near one side of the center, top portions of the hinged seats are hingedly connected with hinged blocks, the hinged blocks are provided with adjusting barrels at ends away from the hinged seats, the adjusting barrels are placed at the top ends of the lifting rods at ends away from the hinged blocks, the adjusting barrels are provided with rolling cavities, counterweight balls are movably sleeved in the rolling cavities for adjusting the weight on both sides of the mounting frame, the blade seat is provided with a movable cavity, and the bottom of the blade is movably sleeved in the movable cavity for increasing the effective plowing distance of the blade.

[0011] An adaptive floating rotary cultivator comprises a crawler frame and a rotary cultivator, one side of a top end of the crawler frame is provided with a fixing seat, the fixing seat is provided with two symmetrical hydraulic cylinders I, the hydraulic cylinders I are provided with hydraulic rods I, one end of the hydraulic rod I away from the fixing seat is provided with a connecting rod, and the connecting rod is provided with an arc-shaped sliding limiting block at an end away from the hydraulic rod I; the rotary cultivator comprises a mounting frame, a swing frame provided at a top end of the mounting frame, a floating frame connected with the swing frame, balance bars provided at bottom portions of both sides of the mounting frame, and a supporting plate provided at one side of the mounting frame away from the crawler frame; the supporting plate is hingedly connected with a limiting hinged plate between the mounting frame, used for adjusting the inclination angle of the supporting plate, the supporting plate is inclined to the horizontal plane, and the bottom end of the supporting plate contacts the ground, used for smoothing the soil turned over by the rotary cultivator, the balance bars are in a U shape, and the bottom portions of the balance bars contact the ground, used for providing upward supporting force to the mounting frame.

[0012] Preferably, the floating frame comprises two symmetrical connecting frames I, a fixing disc fixed at bottom ends of the two connecting frames I, a cross rod connecting the two connecting frames I, and two symmetrical connecting plates sleeved on the cross rod, the hanging rod is connected in the two connecting plates near one side of the arc-shaped sliding limiting block, used for exerting limiting force on the floating frame through the arc-shaped sliding limiting block and the hanging rod, one end of the crawler frame opposite to the mounting frame is provided with two symmetrical extension seats, the extension seats are provided with vertical seats near one side of the mounting frame, top ends of the vertical seats are provided with positioning clamps, the cross rod is movably sleeved in the positioning clamps, and the cross rod is used for providing supporting force to the floating frame and limiting the action of the floating frame.

[0013] Preferably, the swing frame includes two symmetrical connecting frames II disposed at the top of the mounting frame and a turntable connected to the top of the two connecting frames II. The top of the turntable is fitted with the bottom of the fixed plate. A through hole is provided in the center of the turntable. A T-shaped column is fixedly connected to the center of the bottom of the fixed plate. The column portion with a smaller diameter of the T-shaped column is movably fitted into the through hole. The column portion with a larger diameter of the T-shaped column presses the turntable under the fixed plate. The top of the turntable is fitted with the bottom of the fixed plate to provide a base point for the rotation of the turntable. Two symmetrical insertion holes are provided on both the fixed plate and the turntable.

[0014] Preferably, a hydraulic cylinder II is provided at the bottom center of the crossbar, and a hydraulic rod II is provided inside the hydraulic cylinder II. A straight plate is provided at one end of the hydraulic rod II that protrudes from the hydraulic cylinder II. Symmetrical locking rods are provided on both sides of the bottom end of the straight plate. The locking rods pass through the insertion holes on the fixed plate and the turntable to control the rotation of the turntable. Two symmetrical limiting rods are provided at the bottom end of the fixed plate, and two symmetrical arc-shaped limiting holes are opened on the turntable. The limiting rods are inserted into the limiting holes to limit the rotation angle of the turntable.

[0015] This application provides an adaptive floating rotary tiller. By setting a movable connecting rod and an arc-shaped sliding limit block at the connection between the track frame and the rotary tiller, when the track frame travels on uneven ground, taking the track frame moving from a low area to a high area as an example, the rotary tiller is still in the low area, while the track frame is in the high area. The entire track frame, including the arc-shaped sliding limit block connecting the rotary tiller, will tilt upward relative to the rotary tiller. At this time, the arc-shaped sliding limit block will move relative to the connecting rod, causing the connecting rod to move downward within the arc-shaped sliding limit block, completing self-adjustment. At this time, the blades of the rotary tiller are still in contact with the soil in the low area for tillage.

[0016] Meanwhile, by installing balance bars on both sides of the tiller and a support plate on the side of the tiller away from the track sliding limit block, both the balance bars and the support plate are in contact with the ground. This ensures that the tiller can maintain its balance during adaptive floating adjustments and will not tip over due to the adjustment action.

[0017] Meanwhile, by dividing the rotary tiller into left and right parts and the hanging rod into two hinged parts, which are connected to the left and right parts of the rotary tiller respectively, and by breaking the cutter shaft in the middle into left and right parts, when the rotary tiller reaches uneven ground on the left and right sides, one part of the rotary tiller will be suspended in the air. At this time, there is no soil support below the suspended side, so the suspended side tilts downward with its own weight as the base point of the hanging rod. This allows the downward tilting cutter shaft to drive the blades to contact the sloping ground and complete the tilling of irregular terrain. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0019] The present disclosure can be more clearly understood and appreciated from the following detailed description, taken in conjunction with the following drawings of which:

[0020] Figure 1 Figure 1 is a perspective view of an embodiment of the present application;

[0021] Figure 2 Figure 2 is a schematic view of the structure of the hanging rod and the arc-shaped sliding limiting block of the present application;

[0022] Figure 3 Figure 3 is a schematic view of the structure distribution of an embodiment of the present application;

[0023] Figure 4 Figure 4 is a schematic view of the structure of the track frame and the rotary tiller of the present application;

[0024] Figure 5 Figure 5 is a perspective view of an embodiment of the present application;

[0025] Figure 6 Figure 6 is a schematic view of the structure of the mounting frame of the present application;

[0026] Figure 7 Figure 7 is a schematic view of the structure of the hanging rod of an embodiment of the present application;

[0027] Figure 8 Figure 8 is a schematic view of the structure of the rotary tiller of the present application;

[0028] Figure 9 Figure 9 is a schematic view of the internal structure of the adjusting cylinder of an embodiment of the present application;

[0029] Figure 10 Figure 10 is a schematic view of the internal structure of the knife seat of an embodiment of the present application;

[0030] Figure 11 Figure 11 is a perspective view of an embodiment of the present application;

[0031] Figure 12 Figure 12 is a schematic view of the connection relationship between the hydraulic cylinder I and the floating frame of an embodiment of the present application;

[0032] Figure 13 Figure 13 is a schematic view of the structure of the floating frame of an embodiment of the present application;

[0033] Figure 14 Figure 14 is a schematic view of the structure of the hydraulic cylinder II of an embodiment of the present application;

[0034] Figure 15 Figure 15 is a schematic view of the connection relationship between the fixed disc and the rotating disc of an embodiment of the present application;

[0035] Figure 16 Figure 5 is a schematic view of the fixed disc structure in the fifth embodiment of the present application;

[0036] Figure 17 Figure 5 is a schematic view of the fixed disc structure in the fifth embodiment of the present application;

[0037] 1, track frame; 2, fixed seat; 3, hydraulic cylinder I; 4, hydraulic rod I; 5, connecting rod; 6, arc-shaped sliding limiting block; 7, mounting frame; 8, suspension frame; 9, suspension plate; 10, hanging rod; 101, hinged rod I; 102, hinged rod II; 11, cutter shaft; 12, cutter seat; 121, movable cavity; 13, cutter blade; 14, balancing rod; 15, sliding block; 16, supporting plate; 17, limiting hinged plate; 18, buckle box; 19, lifting rod; 20, hinged seat; 21, hinged block; 22, adjusting cylinder; 23, rolling cavity; 24, counterweight ball; 25, extension seat; 26, vertical seat; 27, positioning clamp; 28, connecting frame I; 281, connecting frame II; 29, cross rod; 30, connecting plate; 31, fixed disc; 32, T-shaped column; 33, plug-in hole; 34, limiting rod; 35, rotating disc; 36, through hole; 37, limiting hole; 38, straight plate; 39, locking rod; 40, hydraulic cylinder II; 41, hydraulic rod II. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without any creative work fall within the protection scope of the present application.

[0039] Embodiment one

[0040] Please refer to Figures 1 to 4, including track frame 1, the top end of track frame 1 is bolted to one side of the fixed seat 2, the fixed seat 2 is fixedly connected with two symmetrical hydraulic cylinders I 3, the hydraulic cylinder I 3 is movably sleeved with hydraulic rod I 4, the end of the hydraulic rod I 4 away from the fixed seat 2 is provided with a connecting rod 5, the end of the connecting rod 5 away from the hydraulic rod I 4 is fixedly connected with an arc-shaped sliding limiting block 6, the extension length of the hydraulic rod I 4 can be adjusted through the hydraulic cylinder I 3, so that the arc-shaped sliding limiting block 6 is driven by the connecting rod 5 to move synchronously, the position of the arc-shaped sliding limiting block 6 is adjusted to adjust the distance and angle between the track frame 1 and the rotary tiller, the arc-shaped sliding limiting block 6 is inclined downward, the cross section of the arc-shaped sliding limiting block 6 is arc-shaped, the arc-shaped sliding limiting block 6 is provided with a through arc-shaped hole, the hole of the arc-shaped sliding limiting block 6 is movably sleeved with a hanging rod 10, when the track frame 1 moves, the hydraulic cylinder I 3 can be driven by the fixed seat 2 to move synchronously and in the same direction, and the arc-shaped sliding limiting block 6 is driven by the hydraulic rod I 4 and the connecting rod 5 to move synchronously and in the same direction, at this time, the arc-shaped sliding limiting block 6 will apply friction and tension to the hanging rod 10 through the arc-shaped hole wall, at this time, the hanging rod 10 will be pulled to move synchronously and in the same direction without changing the angle of the arc-shaped sliding limiting block 6.

[0041] Referring to Figure 1 , Figures 3 to 4 , the side of the track frame 1 close to the fixed seat 2 is provided with a rotary tiller, the rotary tiller includes a mounting frame 7, rotary tiller knives in the mounting frame 7, balance bars 14 mounted on the bottom of both sides of the mounting frame 7, and a supporting plate 16 mounted on the side of the mounting frame 7 away from the track frame 1.

[0042] Referring to Figures 1 to 4The top end of the mounting frame 7 is welded with two symmetrical hanging frames 8, the top end of the mounting frame 7 is welded with evenly distributed hanging plates 9 near one side of the arc-shaped sliding limiting block 6, and a hanging rod 10 is fixedly sleeved in one end of the hanging plate 9 near the arc-shaped sliding limiting block 6, so that the force exerted by the arc-shaped sliding limiting block 6 on the hanging rod 10 can be transmitted to the rotary cultivator through the hanging plate 9 to drive the rotary cultivator to move. When the track frame 1 is walking on uneven ground, taking the track frame 1 from the low area to the high area as an example, at this time the rotary cultivator is still in the low area, and the track frame 1 is in the high area, the entire track frame 1 including the arc-shaped sliding limiting block 6 connected with the rotary cultivator will be inclined upward relative to the rotary cultivator, at this time the arc-shaped sliding limiting block 6 will move relative to the hanging rod 10, so that the hanging rod 10 moves downward in the arc-shaped sliding limiting block 6, and the self-adjusting is completed, at this time the blades 13 of the rotary cultivator still contact with the land in the low area to carry out the plowing work, and when the track frame 1 from the high area to the low area, at this time the rotary cultivator is still in the high area, and the track frame 1 is in the low area, the entire track frame 1 including the arc-shaped sliding limiting block 6 connected with the rotary cultivator will be inclined downward relative to the rotary cultivator, at this time the arc-shaped sliding limiting block 6 will move relative to the hanging rod 10, so that the hanging rod 10 moves upward in the arc-shaped sliding limiting block 6, and the self-adjusting is completed, at this time the blades 13 of the rotary cultivator still contact with the land in the high area to carry out the plowing work, the opposite ends of the two adjacent hanging plates 9 near the arc-shaped sliding limiting block 6 are respectively attached to the two ends of the arc-shaped sliding limiting block 6, so that the arc-shaped sliding limiting block 6 can be clamped between the two adjacent hanging plates 9, and the displacement of the two ends of the hanging plate 9 can be eliminated, avoiding the lateral movement of the rotary cultivator (lateral refers to the vertical direction of the moving direction of the track frame 1).

[0043] Referring to Figure 1 , Figure 8 The rotary cultivator includes a blade shaft 11 movably sleeved at both ends of the mounting frame 7, evenly distributed blade seats 12 fixedly sleeved on the blade shaft 11, and blades 13 installed on the blade seats 12 in a circumferential and uniform manner. The outer side of the blade 13 away from the blade shaft 11 is inserted into the ground, the blade 13 is L-shaped, and the adjacent blades 13 on the same blade seat 12 are installed in opposite directions, so that the blades 13 on one blade seat 12 can plow and cultivate the soil on both sides.

[0044] The blade shaft 11 is provided with a rotating force through an existing transmission device, such as an existing variable speed gear box transmission device, a belt transmission device, and a hydraulic motor transmission device.

[0045] Referring to Figure 1 , Figures 3 to 4, the hinge limiting plate 17 is hinged between the supporting plate 16 and the mounting frame 7, the hinge limiting plate 17 is composed of two plates hinged together, the two ends of the hinge limiting plate 17 are hinged with the supporting plate 16 and the mounting frame 7 respectively, the supporting plate 16 is inclined to the horizontal plane, the bottom end of the supporting plate 16 contacts the ground, so that the supporting plate 16 can always contact the ground through the rotation of the hinge point of the hinge limiting plate 17, and the disorderly soil cultivated by the rotary tiller is smoothed, and the mounting frame 7 is provided with upward supporting force.

[0046] Referring to Figure 1 , Figure 3 , the balance bar 14 is in the shape of a U, the bottom of the balance bar 14 contacts the ground, so that the balance bar 14 supports the mounting frame 7, and cooperates with the pulling force of the arc-shaped sliding limiting block 6 on the hanging rod 10 to keep the height of the mounting frame 7 from the ground.

[0047] Example two

[0048] Referring to Figures 5 to 6 , on the basis of example one, the mounting frame 7 is divided into two symmetrical parts from the center, the knife shaft 11 is divided into two symmetrical parts from the center, and the supporting plate 16 is divided into two symmetrical parts from the center, there is a gap between the mounting frame 7, the knife shaft 11 and the supporting plate 16 on both sides, so that the mounting frame 7, the rotary tiller and the supporting plate 16 can be inclined to both sides with the center breaking point as the base point, and the gap in the center makes the mounting frame 7, the rotary tiller and the supporting plate 16 on both sides not collide when they are inclined.

[0049] Referring to Figure 7 , the hanging rod 10 is divided into the hinge rod I 101 and the hinge rod II 102 from the center, the opposite ends of the hinge rod I 101 and the hinge rod II 102 are hinged, so that the mounting frame 7 separated on both sides can still be driven by the arc-shaped sliding limiting block 6 to move with the track frame 1 through the hinge rod I 101 and the hinge rod II 102, at this time, when the mounting frame 7 on both sides is inclined, the hinge rod I 101 and the hinge rod II 102 will rotate through the hinge, without affecting the position adjustment of the rotary tiller and the track frame 1 through the arc-shaped sliding limiting block 6.

[0050] Referring to Figure 7The connecting rod 5 is combined by a large-diameter cylinder at one end and a small-diameter cylinder at one end, the cross section of the connecting rod 5 is T-shaped, the large-diameter end of the connecting rod 5 is movably sleeved in the hydraulic rod 4, so that when the articulated rod 101 and the articulated rod 102 rotate through the articulated part, the articulated rod 101 and the articulated rod 102 can drive the contacted arc-shaped sliding limiting block 6 to rotate at the movable sleeving part of the connecting rod 5 and the hydraulic rod 4, at this time, the arc-shaped sliding limiting block 6 will not hinder the rotation of the articulated rod 101 and the articulated rod 102, and the rotation of the articulated rod 101 and the articulated rod 102 will not hinder the position adjustment of the rotary tiller and the track frame 1 through the arc-shaped sliding limiting block 6.

[0051] Referring to Figure 8 , the two separated cutter shafts 11 rotate synchronously and in the same direction, the blades 13 on the adjacent cutter seats 12 are staggered, so that the mounting frames 7 on the same side drive the cutter shafts 11 to tilt, and the blades 13 on the cutter seats 12 at the relative positions of the two cutter shafts 11 will not touch each other when following the cutter shafts 11 to rotate synchronously.

[0052] Example three

[0053] Please refer to Figures 5 to 6 , on the basis of example two, the two top ends of the balance rod 14 are fixedly connected with vertical sliding blocks 15 respectively, the end of the mounting frame 7 close to the balance rod 14 is bolted with two symmetrical buckle boxes 18, the buckle boxes 18 are provided with limiting holes penetrating up and down, the sliding blocks 15 are movably sleeved in the limiting holes, the top end of the sliding block 15 is fixedly connected with a horizontal lifting rod 19, so that when the balance rod 14 contacts the ground, the mounting frame 7 will move downwardly and tilt around the hanging rod 10 under the influence of its own gravity until the blades 13 are inserted into the soil and the soil exerts enough supporting force on the blades 13 to support the mounting frame 7 from falling, at this time, the sliding block 15 will drive the lifting rod 19 to move upwardly relative to the mounting frame 7, it should be noted that when the mounting frame 7 moves, the limiting articulated plate 17 rotates through the articulated point with the mounting frame 7 to complete automatic adjustment, so that the bottom end of the supporting plate 16 is always pressed on the ground.

[0054] Referring to Figures 5 to 6 , Figure 9, the top end of the mounting frame 7 is fixedly connected with two symmetrical hinged seats 20 on one side close to the center, the top of the hinged seat 20 is hingedly connected with a hinged block 21, the end of the hinged block 21 away from the hinged seat 20 is welded with an adjusting cylinder 22, the end of the adjusting cylinder 22 away from the hinged block 21 is placed at the top end of the lifting rod 19, the adjusting cylinder 22 is provided with a rolling cavity 23, and the counterweight ball 24 is movably sleeved in the rolling cavity 23; in the initial state, because the lifting rod 19 is lifted by the downward tilting movement of the mounting frame 7, the adjusting cylinder 22 is rotated at the hinged point of the hinged block 21 and the hinged seat 20, so that the end of the adjusting cylinder 22 at the hinged block 21 is at the low end and the end at the lifting rod 19 is at the high end, forming an inclined shape, so that the counterweight ball 24 rolls to the low end of the adjusting cylinder 22, and at this time, the opposite end of the mounting frame 7 separated on both sides is heavier than the end provided with the balance bar 14; when the rotary cultivator moves to a position where there is a pit (including but not limited to a pit, a drainage groove and the like) in the middle, the blades 13 at the opposite ends of the two side shafts 11 will lose the upward supporting force of the ground, at this time, the end of the mounting frame 7 above the pit will be heavier than the end provided with the balance bar 14 under the influence of the gravity of the counterweight ball 24, and the suspended rotating blade 13 will provide a centrifugal force, so that the suspended end of the mounting frame 7 tilts downward, and the end provided with the balance bar 14 tilts upward, so that the downward tilting blade 13 can cultivate the pit.

[0055] When the rotary cultivator moves to a position where there is a pit (including but not limited to a pit, a drainage groove and the like) on both sides (the side provided with the balance bar 14), the balance bar 14 will be suspended and lose the supporting force of the ground, at this time, the gravity of the balance bar 14, the sliding block 15, the lifting rod 19 and the adjusting cylinder 22 will press the balance bar 14 downward, so that the balance bar 14 moves downward until it contacts the ground again; when the lifting rod 19 moves downward with the balance bar 14 to below the hinged block 21, the end of the adjusting cylinder 22 at the hinged block 21 is at the high position and the end at the lifting rod 19 is at the low position, so that the counterweight ball 24 rolls to the end of the lifting rod 19, at this time, the side of the mounting frame 7 provided with the balance bar 14 is heavier, so that the suspended end of the mounting frame 7 tilts downward, and the center side of the mounting frame 7 separated is tilted upward, so that the downward tilting blade 13 can cultivate the pit.

[0056] Embodiment Four

[0057] Please refer to Figure 10On the basis of embodiment three, the movable cavity 121 is arranged in the tool seat 12, the bottom of the blade 13 is movably sleeved in the movable cavity 121, the bottom of the blade 13 is in T-shaped section, the bottom of the blade 13 can only slide bidirectionally in the movable cavity 121, and the blade 13 cannot be separated from the movable cavity 121, so that the blade 13 can slide outward under the action of centrifugal force when the blade 13 rotates along with the tool shaft 11, the effective distance of the blade 13 is lengthened, and the blade 13 with the lengthened effective distance can plow small holes when the mounting frame 7 cannot be inclined.

[0058] Embodiment five

[0059] Referring to Figures 11 to 13 An adaptive floating rotary cultivator comprises a crawler frame 1, a fixed seat 2 is bolted on one side of the top end of the crawler frame 1, a hydraulic cylinder I 3 is fixedly connected to the fixed seat 2, a hydraulic rod I 4 is movably sleeved in the hydraulic cylinder I 3, a connecting rod 5 is arranged on the end, away from the fixed seat 2, of the hydraulic rod I 4 and protrudes out of the hydraulic cylinder I 3, an arc-shaped sliding limiting block 6 is fixedly connected to the end, away from the hydraulic rod I 4, of the connecting rod 5, the extension length of the hydraulic rod I 4 can be adjusted through the hydraulic cylinder I 3, the arc-shaped sliding limiting block 6 is synchronously moved through the connecting rod 5, the position of the arc-shaped sliding limiting block 6 is adjusted, when the hydraulic rod I 4 is lengthened, the arc-shaped sliding limiting block 6 is inclined downward, at this time, the hanging rod 10 is inclined upward (only the arc-shaped sliding limiting block 6 moves linearly, and the hanging rod 10 only moves linearly relatively), at this time, the arc-shaped sliding limiting block 6 extrudes the hanging rod 10 downward, in order to adapt to the position of the arc-shaped sliding limiting block 6 when the arc-shaped sliding limiting block 6 moves, the whole floating frame needs to be rotated downward with the center of the cross rod 29 as the base point, so that the whole rotary cultivator is synchronously moved through the swing frame (the arc-shaped sliding limiting block 6 is inclined upward, and the adjustment of the angle between the crawler frame 1 and the rotary cultivator is the same), the arc-shaped sliding limiting block 6 is inclined downward, the cross section of the arc-shaped sliding limiting block 6 is in arc shape, the arc-shaped sliding limiting block 6 is provided with a through arc-shaped hole, the hanging rod 10 is movably sleeved in the hole of the arc-shaped sliding limiting block 6, when the crawler frame 1 moves, the hydraulic cylinder I 3 is synchronously and directionally moved through the fixed seat 2, the arc-shaped sliding limiting block 6 is synchronously and directionally moved through the hydraulic rod I 4 and the connecting rod 5, at this time, the arc-shaped sliding limiting block 6 applies friction and tension to the hanging rod 10 through the arc-shaped hole wall, at this time, the hanging rod 10 is synchronously and directionally moved without changing the angle of the arc-shaped sliding limiting block 6.

[0060] Referring to Figure 11 The rotary cultivator is arranged on one side, close to the fixed seat 2, of the crawler frame 1, the rotary cultivator comprises a mounting frame 7, a swing frame arranged at the top end of the mounting frame 7, a floating frame connected with the swing frame, a balance rod 14 arranged at the bottom of the two sides of the mounting frame 7 and a supporting plate 16 arranged at the side, away from the crawler frame 1, of the mounting frame 7.

[0061] Referring to Figure 11 , the support plate 16 is hinged with the mounting frame 7 by a limiting hinge plate 17, which is composed of two plates hinged together, and the two ends of the limiting hinge plate 17 are hinged with the support plate 16 and the mounting frame 7 respectively. The support plate 16 is inclined to the horizontal plane, and the bottom end of the support plate 16 contacts the ground, so that the support plate 16 can always contact the ground through the rotation at the hinge point of the limiting hinge plate 17, and the support plate 16 can smooth the disordered soil plowed by the rotary blade and provide upward supporting force for the mounting frame 7.

[0062] Referring to Figure 11 , the balance bar 14 is in the shape of a U, and the bottom of the balance bar 14 contacts the ground, so that the balance bar 14 supports the mounting frame 7 and cooperates with the arc-shaped sliding limiting block 6 to keep the height of the mounting frame 7 from the ground.

[0063] Referring to Figures 11 to 14 , the floating frame includes two symmetrical connecting frames 128, a fixed disc 31 fixed at the bottom ends of the two connecting frames 128, a cross bar 29 fixedly connecting the two connecting frames 128, and two symmetrical connecting plates 30 fixedly sleeved on the cross bar 29. The hanging bar 10 is fixedly connected inside the side of the two connecting plates 30 close to the arc-shaped sliding limiting block 6, so that the force applied by the arc-shaped sliding limiting block 6 to the hanging bar 10 can be transmitted to the rotary tiller through the floating frame and the swing frame to drive the rotary tiller to move. When the track frame 1 is walking on uneven ground, for example, from a low area to a high area, the rotary tiller is still in the low area, and the track frame 1 is in the high area. The entire track frame 1, including the arc-shaped sliding limiting block 6 connected with the rotary tiller, will be inclined upward relative to the rotary tiller, so that the floating frame will rotate downward around the center of the cross bar 29 as the base point, and the entire rotary tiller will rotate synchronously to complete self-adjustment. When the track frame 1 is from the high area to the low area, the rotary tiller is still in the high area, and the track frame 1 is in the low area. The entire track frame 1, including the arc-shaped sliding limiting block 6 connected with the rotary tiller, will be inclined downward relative to the rotary tiller. At this time, the arc-shaped sliding limiting block 6 will be pressed with the hanging bar 10, so that the floating frame will rotate upward around the center of the cross bar 29 as the base point, and the entire rotary tiller will rotate synchronously to complete self-adjustment. The end of the track frame 1 opposite to the mounting frame 7 is fixedly connected with two symmetrical extension seats 25, and the side of the extension seat 25 close to the mounting frame 7 is bolted with a vertical seat 26. The top end of the vertical seat 26 is fixedly connected with a positioning clamp 27, and the cross bar 29 is movably sleeved in the positioning clamp 27, so that the positioning clamp 27 can provide supporting force for the cross bar 29 through the vertical seat 26 and the extension seat 25, and the floating frame can only rotate around the center of the cross bar 29 as the base point under the limitation of the positioning clamp 27.

[0064] Referring to Figures 14 to 15The bottom end center of the fixed disc 31 is fixedly connected with a T-shaped column 32, the cross section of the T-shaped column 32 is T-shaped, and two symmetrical plug-in holes 33 are formed in the fixed disc 31.

[0065] Referring to Figure 11 , Figures 14 to 15 The swing frame comprises two symmetrical connecting frames II 281 welded at the top end of the mounting frame 7, and a rotating disc 35 fixedly connected at the top end of the two connecting frames II 281, the top end of the rotating disc 35 is attached to the bottom end of the fixed disc 31, a through hole 36 is formed in the center of the rotating disc 35, the smaller column part of the T-shaped column 32 is movably sleeved in the through hole 36, the larger column part of the T-shaped column 32 presses the rotating disc 35 below the fixed disc 31, the top end of the rotating disc 35 is attached to the bottom end of the fixed disc 31, so that the rotating disc 35 can be directly connected with the fixed disc 31 through the T-shaped column 32, at this time, the action of the floating frame or the swing frame can affect the swing frame or the floating frame through the T-shaped column 32, so that the rotary tiller can perform the up and down floating action, at the same time, the rotating disc 35 can perform the self-rotation action with the T-shaped column 32 as the center, so that when the rotary tiller faces the uneven ground, the action force of the ground on the rotary tiller will make the rotary tiller perform the swing action, and two symmetrical plug-in holes 33 are formed in the rotating disc 35.

[0066] Referring to Figure 11 , Figures 14 to 17 The bottom center of the horizontal rod 29 is fixedly connected with a hydraulic cylinder II 40, a hydraulic rod II 41 is movably sleeved in the hydraulic cylinder II 40, one end of the hydraulic rod II 41 protruding out of the hydraulic cylinder II 40 is fixedly connected with a straight plate 38, and the bottom end of the straight plate 38 is fixedly connected with symmetrical lock rods 39 on both sides through bolts. The lock rods 39 penetrate the plug-in holes 33 in the fixed disc 31 and the rotating disc 35, and the position of the lock rods 39 is controlled through the hydraulic rod II 41. When the lock rods 39 are inserted into the plug-in holes 33, the rotating disc 35 will be locked by the lock rods 39 and cannot perform the swing action. Only when the lock rods 39 are driven by the hydraulic rod II 41 to move away from the plug-in holes 33, the rotating disc 35 can be unlocked and perform the swing action.

[0067] Referring to Figures 15 to 17 The bottom end of the fixed disc 31 is fixedly connected with two symmetrical limiting rods 34, and two symmetrical arc-shaped limiting holes 37 are formed in the rotating disc 35. The limiting rods 34 are inserted into the limiting holes 37, and the arc angle value of the limiting holes 37 is not greater than sixty degrees, so that when the rotating disc 35 swings, the limiting holes 37 will relatively rotate with the limiting rods 34. When the side wall of the limiting rods 34 abuts against the side wall in the circumferential direction of the limiting holes 37, the rotating disc 35 will not be able to rotate any more, thereby limiting the rotation angle of the rotating disc 35.

[0068] It should be noted that the shape of the fixed disc 31 and the rotating disc 35 is not limited to a circle.

Claims

1. An adaptive floatation rotary cultivator characterized by, The utility model provides a rotary tiller and crawler frame, the rotary tiller and crawler frame comprises a crawler frame (1) and rotary tiller, the top one side of crawler frame (1) is provided with fixed seat (2), be provided with two symmetrical hydraulic cylinder I (3) on fixed seat (2), be provided with hydraulic rod I (4) in hydraulic cylinder I (3), the one end away from fixed seat (2) of hydraulic rod I (4) is provided with connecting rod (5), the one end away from hydraulic rod I (4) of connecting rod (5) is provided with arc sliding limit block (6); The utility model provides a rotary tiller and crawler frame, the rotary tiller and crawler frame comprises a crawler frame (1) and rotary tiller, the top one side of crawler frame (1) is provided with fixed seat (2), be provided with two symmetrical hydraulic cylinder I (3) on fixed seat (2), be provided with hydraulic rod I (4) in hydraulic cylinder I (3), the one end away from fixed seat (2) of hydraulic rod I (4) is provided with connecting rod (5), the one end away from hydraulic rod I (4) of connecting rod (5) is provided with arc sliding limit block (6); The top one side of the mounting frame (7) is provided with evenly distributed suspension plates (9) close to the arc sliding limit block (6), the suspension plates (9) are provided with hanging rods (10), the hanging rods (10) are sleeved in the arc sliding limit block (6) for moving with the crawler frame (1); The limiting hinged plate (17) is hinged between the supporting plate (16) and the mounting frame (7) for adjusting the inclination angle of the supporting plate (16), the supporting plate (16) is inclined to the horizontal plane, the bottom end of the supporting plate (16) contacts the ground for smoothing the soil turned over by the rotary tiller, the balance bar (14) is in the shape of U, the bottom of the balance bar (14) contacts the ground for providing upward supporting force to the mounting frame (7); The two top ends of the balance bar (14) are respectively provided with vertical sliding blocks (15), the one end of the mounting frame (7) close to the balance bar (14) is provided with two symmetrical buckle boxes (18), the buckle boxes (18) are provided with limiting holes penetrating up and down, the sliding blocks (15) are movably sleeved in the limiting holes, the top end of the sliding block (15) is fixedly connected with a horizontal lifting rod (19) for automatically adjusting the height of the lifting rod (19) according to the contact condition of the balance bar (14) with the ground, the top end of the mounting frame (7) is provided with two symmetrical hinged seats (20) close to the center, the top of the hinged seat (20) is hinged with a hinged block (21), the one end of the hinged block (21) away from the hinged seat (20) is provided with an adjusting cylinder (22), the one end of the adjusting cylinder (22) away from the hinged block (21) is placed on the top end of the lifting rod (19), the adjusting cylinder (22) is provided with a rolling cavity (23), the rolling cavity (23) is movably sleeved with a counterweight ball (24) for adjusting the weight of the two sides of the mounting frame (7).

2. An adaptive floatation rotary cultivator as claimed in claim 1, wherein, The arc sliding limit block (6) is inclined downward, the cross section of the arc sliding limit block (6) is in the shape of arc, the arc sliding limit block (6) is provided with a penetrating arc-shaped hole for self-adapting adjustment of the hanging rod (10) in the arc sliding limit block (6), the opposite ends of the two adjacent suspension plates (9) close to the arc sliding limit block (6) are respectively attached to the two ends of the arc sliding limit block (6) for limiting the lateral movement of the rotary tiller.

3. An adaptive floatation rotary cultivator as claimed in claim 2, wherein, The rotary tiller comprises a blade shaft (11) mounted at both ends of a mounting frame (7), uniformly arranged blade holders (12) arranged on the blade shaft (11), and L-shaped blades (13) arranged on the blade holders (12) in a circumferential direction, wherein the blades (13) are inserted into the ground from the outer side of the blade shaft (11), the blades (13) on the same blade holder (12) are reversely arranged, the blades (13) on adjacent blade holders (12) are staggered, and the area of the blades (13) contacting the soil is increased.

4. An adaptive floatation rotary cultivator as claimed in claim 3, wherein, The mounting frame (7) is symmetrically divided into two parts from the center, the blade shaft (11) is symmetrically divided into two parts from the center, the supporting plate (16) is symmetrically divided into two parts from the center, the hanging rod (10) is a hinged rod I (101) and a hinged rod II (102) divided into two parts from the center, the opposite ends of the hinged rod I (101) and the hinged rod II (102) are hinged, and gaps exist between the mounting frame (7), the blade shaft (11) and the supporting plate (16) on both sides.

5. An adaptive floatation rotary cultivator as claimed in claim 4, wherein, The connecting rod (5) is combined by a large-diameter cylinder at one end and a small-diameter cylinder at the other end, the cross section of the connecting rod (5) is T-shaped, and the large-diameter end of the connecting rod (5) is movably sleeved in the hydraulic rod I (4) to avoid the arc-shaped sliding limiting block (6) from hindering the relative tilting of the hinged rod I (101) and the hinged rod II (102).

6. An adaptive floatation rotary cultivator as claimed in claim 5, wherein, The blade holder (12) is provided with a movable cavity (121), and the bottom of the blade (13) is movably sleeved in the movable cavity (121) to increase the effective plowing distance of the blade (13).

7. An adaptive floatation rotary cultivator characterized by, The rotary tiller comprises a track frame (1) and a rotary tiller, the top side of the track frame (1) is provided with a fixed seat (2), two symmetrical hydraulic cylinders I (3) are arranged on the fixed seat (2), the hydraulic cylinders I (3) are provided with hydraulic rods I (4), the end of the hydraulic rod I (4) away from the fixed seat (2) is provided with a connecting rod (5), the end of the connecting rod (5) away from the hydraulic rod I (4) is provided with an arc-shaped sliding limiting block (6), the rotary tiller is provided with a mounting frame (7), a swing frame arranged at the top end of the mounting frame (7), a floating frame connected with the swing frame, a balance rod (14) arranged at the bottom of both sides of the mounting frame (7), and a supporting plate (16) arranged at the side of the mounting frame (7) away from the track frame (1). The rotary tiller comprises a track frame (1) and a rotary tiller, the top side of the track frame (1) is provided with a fixed seat (2), two symmetrical hydraulic cylinders I (3) are arranged on the fixed seat (2), the hydraulic cylinders I (3) are provided with hydraulic rods I (4), the end of the hydraulic rod I (4) away from the fixed seat (2) is provided with a connecting rod (5), the end of the connecting rod (5) away from the hydraulic rod I (4) is provided with an arc-shaped sliding limiting block (6), the rotary tiller is provided with a mounting frame (7), a swing frame arranged at the top end of the mounting frame (7), a floating frame connected with the swing frame, a balance rod (14) arranged at the bottom of both sides of the mounting frame (7), and a supporting plate (16) arranged at the side of the mounting frame (7) away from the track frame (1). The top end of the mounting frame (7) is provided with uniformly arranged hanging plates (9) near the side of the arc-shaped sliding limiting block (6), the hanging plates (9) are provided with hanging rods (10), the hanging rods (10) are sleeved in the arc-shaped sliding limiting block (6), and the rotary tiller moves along with the track frame (1). The supporting plate (16) and the mounting frame (7) are hingedly connected with a limiting hinge plate (17) for adjusting the inclination angle of the supporting plate (16), the supporting plate (16) is inclined to the horizontal plane, the bottom end of the supporting plate (16) contacts the ground for smoothing the soil turned over by the rotary tiller, the balance rod (14) is in a U-like shape, the bottom of the balance rod (14) contacts the ground for providing upward supporting force to the mounting frame (7). The swing frame comprises two symmetrical connecting frames II (281) arranged at the top end of the mounting frame (7), a rotating disc (35) connected at the top end of the two connecting frames II (281), the top end of the rotating disc (35) is attached to the bottom end of a fixed disc (31), a through hole (36) is arranged at the center of the rotating disc (35), a T-shaped column (32) is fixedly connected at the center of the bottom end of the fixed disc (31), the column part with small diameter of the T-shaped column (32) is movably sleeved in the through hole (36), the column part with large diameter of the T-shaped column (32) presses the rotating disc (35) below the fixed disc (31), the top end of the rotating disc (35) is attached to the bottom end of the fixed disc (31) to provide the base point for the rotation of the rotating disc (35), two symmetrical plug-in holes (33) are arranged on the fixed disc (31) and the rotating disc (35).

8. An adaptive floatation rotary cultivator as claimed in claim 7, wherein, The floating frame comprises two symmetrical connecting frames I (28), a fixed disc (31) fixed at the bottom end of the two connecting frames I (28), a cross rod (29) connecting the two connecting frames I (28), two symmetrical connecting plates (30) sleeved on the cross rod (29), the hanging rod (10) is connected to the inside of the two connecting plates (30) near one side of the arc-shaped sliding limiting block (6), so as to limit the floating frame through the arc-shaped sliding limiting block (6) and the hanging rod (10), two symmetrical extension seats (25) are arranged on the end of the crawler frame (1) opposite to the mounting frame (7), a vertical seat (26) is arranged on the side of the extension seat (25) close to the mounting frame (7), a positioning clamp (27) is arranged at the top end of the vertical seat (26), the cross rod (29) is movably sleeved in the positioning clamp (27), so as to provide support force for the floating frame and limit the action of the floating frame.

9. An adaptive floatation rotary cultivator as claimed in claim 8, wherein, The bottom center of the cross rod (29) is provided with a hydraulic cylinder II (40), the hydraulic cylinder II (40) is provided with a hydraulic rod II (41) inside, a straight plate (38) is arranged at the end of the hydraulic rod II (41) out of the hydraulic cylinder II (40), symmetrical lock rods (39) are arranged at the bottom end of the straight plate (38), the lock rods (39) pass through the plug-in holes (33) on the fixed disc (31) and the rotating disc (35), so as to control the rotation of the rotating disc (35), the bottom end of the fixed disc (31) is provided with two symmetrical limiting rods (34), two symmetrical arc-shaped limiting holes (37) are arranged on the rotating disc (35), the limiting rods (34) are inserted into the limiting holes (37), so as to limit the rotation angle of the rotating disc (35).

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