Floating deep tillage pulverizer

Abstract

The application provides a floating deep ploughing and pulverizing cultivator, which comprises a cultivator frame, a walking device and a soil loosening device. The cultivator frame comprises a frame body and a turning part. A connecting seat is arranged at one end of the frame body. The turning part comprises a turning support. A front connecting block is arranged on one side of the turning support. A first hinged seat is arranged on the other side of the turning support. The first hinged seat is movably connected with the connecting seat through a connecting column. The turning part is rotatably arranged relative to the frame along the height direction of the frame. The end of the front connecting block away from the turning support is hingedly connected with a rear connecting block. Fixed shafts are arranged on the two sides of the frame body and the rear connecting block. The fixed shafts are arranged for mounting the walking device. The cultivator with the above structure can reduce the risk of damage of the connecting seat and the turning part. During the walking process of the cultivator, the longitudinal load can be better borne, the walking operation is facilitated, and the soil in front of the advancing direction is loosened by the soil loosening cutter, so that the soil loosening effect is good.

Description

TECHNICAL FIELD

[0001] The application relates to a deep ploughing and pulverizing machine, in particular to a floating deep ploughing and pulverizing machine. BACKGROUND

[0002] Deep ploughing and pulverizing is to use equipment to plough and pulverize soil, and after deep ploughing and pulverizing, the soil layer is not disturbed, the soil nutrients, water and oxygen are expanded, and the production capacity is improved. The existing deep ploughing and pulverizing machine mainly has two types, one is driven by a tractor, and the other is driven by a newly developed walking machine. The machine mainly comprises a walking mechanism, a frame, a cab, a power system and a deep ploughing and pulverizing device.

[0003] A deep ploughing and pulverizing machine is disclosed in a patent document with Chinese application number 202011597391.1 and publication date March 12, 2021, which comprises a front traction device, a connecting mechanism and a rear floating oil tank. The front traction device is connected to the rear floating oil tank through the connecting mechanism, and the connecting mechanism comprises a front connecting block, a rear connecting block, a joint bearing and a hydraulic cylinder connecting mechanism. One end of the front connecting device is fixedly connected to the front traction device, and the other end of the connecting device is hinged to the joint bearing. There is a hinge shaft passing through the joint bearing, and one end of the rear connecting block is hinged to the hinge shaft. The other end of the rear connecting block is fixedly connected to the rear floating oil tank.

[0004] The front traction device of the machine is fixedly connected to the front connecting block, and the connection between the front traction device and the front connecting block is prone to breakage when stressed. The rear floating oil tank is fixedly connected to the rear connecting block, and the front connecting block is hinged to the rear connecting block. The rear connecting block can only rotate left and right relative to the front connecting block. Along the axial direction of the hinge shaft, the rear connecting block is fixed relative to the front connecting block, and the rear connecting block is fixed relative to the front traction device. When the machine is walking on uneven road surface, the horizontal height of the front traction device is different from that of the rear floating oil tank, which will cause the connection between the front traction device and the rear floating oil tank to be disconnected.

[0005] And similar to the above-mentioned patent document, the connection between the walking swing frame of the walking swing assembly and the load wheel in the structure is only the connection of the load wheel and the two ends of the walking swing frame. During the soil loosening process of the plough, different loads will be applied to the load wheel due to different loads of the soil loosening machine, which will easily cause the load wheel to bear excessive load, thereby affecting the walking operation. SUMMARY

[0006] The application provides a floating deep ploughing and crushing soil loosening machine, which can reduce the risk of damage of the connecting seat and the turning part by rotating the first hinged seat relative to the connecting seat to consume the energy generated by the stress at the connecting part of the first hinged seat and the connecting seat, can better bear the longitudinal load during the walking process of the soil loosening machine, facilitates the walking operation, and can loosen the soil in front of the advancing direction by the soil loosening cutter, so that the loosening effect is good.

[0007] To achieve the above-mentioned purpose, the technical scheme of the application is as follows: a floating deep ploughing and crushing soil loosening machine, comprising a soil loosening machine frame, a walking device and a soil loosening device, the soil loosening machine frame comprises a frame body and a turning part, a connecting seat is arranged at one end of the frame body, the turning part comprises a turning support, a front connecting block is arranged on one side of the turning support, and a first hinged seat is arranged on the other side of the turning support; the first hinged seat is movably connected with the connecting seat through a connecting column; the turning part is rotatably arranged relative to the frame in the height direction of the frame; a rear connecting block is hinged to the end of the front connecting block away from the turning support, and fixing shafts are arranged on the two sides of the frame body and the rear connecting block; the fixing shafts are arranged for mounting the walking device; the soil loosening device is connected with the rear connecting block through a turnover lifting device; the soil loosening device comprises a soil loosening cutter and a soil loosening driving module, the soil loosening cutter is connected with the turnover lifting device through the soil loosening driving module, and the soil loosening driving module is used for driving the soil loosening cutter to loosen the soil.

[0008] The above arrangement is that the frame is used for bearing the front traction device, the front connecting block is hinged with the rear connecting block for bearing the rear floating oil tank; when the horizontal height of the front traction device and the rear floating oil tank is different; the first hinged seat is movably connected with the connecting seat, and then the front connecting block is movably connected with the frame; so that the rear floating oil tank rotates relative to the front traction device along the height direction of the frame; the first hinged seat is rotated relative to the connecting seat to consume the energy generated by the stress at the connecting part of the first hinged seat and the connecting seat, thereby reducing the risk of damage of the connecting seat and the turning part; so that the connection of the frame and the front connecting block and the connection of the frame and the rear floating oil tank are not easy to be disconnected.

[0009] The walking device comprises a walking support, a walking driving assembly and a walking swing assembly, the middle part of the walking support is provided with a through hole matched with the fixing shaft, one end of the fixing shaft penetrating through the through hole is provided with locking devices matched with the fixing shaft, the walking driving assembly comprises a walking track, a walking driving wheel and two walking driven wheels, the walking swing assembly comprises one or more walking swing supports and bearing wheels, the top end of the walking swing support is hinged to the bottom of the walking support, the bottom end of the walking swing support is provided with bearing wheels distributed on both sides, and the walking track is sleeved on the walking driving wheel, the walking driven wheel and the bearing wheel.

[0010] The above arrangement, by arranging a through hole on the walking support, allows the walking device to be sleeved on the fixed shaft on the two sides and the rear connecting block of the rack body through the through hole and locked and fixed by the locking device, so that the walking device can be fixed on the rack of the soil loosening machine, and then the rack of the soil loosening machine is driven to walk by the walking device; at the same time, the walking driving wheel is driven to rotate to drive the track and the walking driven wheel to move, and the walking swing assembly is swung on the walking swing frame under the driving of the track; in the process of walking of the soil loosening machine, after the walking device is fixed on the walking support through the locking device, the walking swing assembly is swung, and when a suddenly high ground is encountered, the walking swing assembly is swung upward, so that the upward force is mainly concentrated on the walking device and the locking device of the soil loosening machine when the walking swing assembly is not present and the upward force is swung, thereby preventing the locking device from being easily damaged, and better bearing longitudinal load and reliable and stable walking for operation are achieved.

[0011] Further, the connecting seat comprises two spaced connecting ears, and the first hinged seat is arranged between the two connecting ears; the first hinged seat comprises a first through hole, and the first through hole penetrates through the first hinged seat; the connecting ear comprises a second through hole, and the connecting column penetrates through the first through hole and the second through hole; a limiting device is arranged between the connecting seat and the first hinged seat, and the limiting device limits the rotation amplitude of the first hinged seat.

[0012] The above arrangement, by connecting the connecting column and the connecting ear with the first hinged seat, has a simple structure. The limiting device limits the rotation amplitude of the first hinged seat, avoiding excessive rotation between the connecting seat and the first hinged seat; at the same time, when the first hinged seat reaches the limiting position, the limiting device provides a supporting force for the first hinged seat, so that the supporting effect between the connecting seat and the first hinged seat is good after reaching the limiting position; the rigid connection has high strength.

[0013] Further, the limiting device comprises a limiting piece, a limiting mounting hole and a limiting groove; the limiting groove is arranged at both ends of the first hinged seat; the limiting groove is recessed inward from the end surface of the first hinged seat, and the limiting groove is located on one side of the first through hole; the limiting mounting hole is arranged in the connecting ear, the limiting piece penetrates through the limiting mounting hole, and one end of the limiting piece is fixedly connected with the connecting ear; the other end of the limiting piece extends into the limiting groove; the length between the top of the limiting groove and the bottom of the limiting groove is greater than the length between the top surface of the limiting piece and the bottom surface of the limiting piece, and the limiting groove is movably arranged relative to the limiting piece.

[0014] The first hinge seat rotates relative to the connecting lug, the limiting piece is fixedly connected with the connecting lug, and the limiting piece limits the first hinge seat; different sizes of the limiting grooves and the limiting piece are arranged, so that the first hinge seat can rotate relative to the limiting piece; along the height direction of the rack, the turning piece rotates upward, and after the top of the limiting groove contacts the top surface of the limiting piece, the limiting piece limits the first hinge seat; along the height direction of the rack, the turning piece rotates downward, and after the bottom of the limiting groove contacts the bottom top surface of the limiting piece, the limiting piece limits the first hinge seat; thereby limiting the turning piece in two rotation directions of the turning piece.

[0015] Further, the connecting lug and the limiting piece are connected through the fixing device; the fixing device comprises a cover plate and two or more connecting pieces, the cover plate is arranged on the outer side of the connecting lug, the connecting lug is provided with one or more first connecting holes, and the limiting piece is provided with a second connecting hole; the connecting pieces are arranged in the through holes of the cover plate, one connecting piece passes through a through hole and is connected with the first connecting hole, and the other connecting piece passes through a through hole and is connected with the second connecting hole.

[0016] The above arrangement simultaneously connects the limiting piece and the connecting lug through the fixing device, so that the limiting piece and the connecting lug are fixedly connected, and the structure is simple.

[0017] Further, the locking device comprises a first connecting ring, a second connecting ring and a detachable bolt, one end surface of the first connecting ring is in contact with one side surface of the walking support, the other end surface of the first connecting ring is fixedly connected with one end surface of the second connecting ring, and the other end surface of the second connecting ring is provided with a groove matched with the detachable bolt. The above arrangement facilitates sleeving the locking device on the fixed shaft and locking through the detachable bolt.

[0018] Further, the outer ring radius of the first connecting ring is greater than the outer ring radius of the second connecting ring, the groove is provided with two or more and is uniformly and intervally arranged on the other end surface of the second connecting ring, one end of the detachable bolt slides into the groove, passes through the through hole of the fixed shaft and then slides out of the groove, and the nut is locked by cooperating with the detachable bolt.

[0019] The above arrangement facilitates locking the fixed shaft through the detachable bolt passing through the groove and the through hole and cooperating with the nut, the plurality of grooves are uniformly and intervally arranged, the locking can be realized in different directions, installation and dismounting are facilitated, the outer ring of the first connecting ring is greater than the outer ring of the second connecting ring, so that the contact area of the first connecting ring connected with the walking support is large, and the size of the outer ring of the second connecting ring is small, so that the locking through the detachable bolt is better.

[0020] Further, the walking swing frame comprises two swing plates arranged oppositely and a connecting rod arranged between the two swing plates, the two ends of the connecting rod are fixedly connected with the two swing plates, the middle part of the swing plate is higher than the two ends, and the two ends of the swing plate are rotatably connected with the load wheels respectively, and the middle part of the swing plate is rotatably connected with the bottom of the walking support through a through hole.

[0021] The above arrangement, by arranging the swing plate and the middle part of the swing plate being higher than the two ends, when the load wheel receives the force from the ground, the load wheel can swing under the drive of the swing plate, and the connecting rod can make the walking swing assembly have better stability and carrying capacity when the walking swing assembly contacts with the walking track.

[0022] Further, the walking support is provided with a connecting device at the position corresponding to the through hole of the walking swing assembly, the connecting device comprises a connecting piece and a fixing piece, one end of the connecting piece is provided with a mounting piece corresponding to the through hole of the middle part of the swing plate, the fixing piece is provided with a fixing hole along the height direction, the other end of the connecting piece is inserted into the fixing hole, the side surface of the fixing piece is provided with a first fixing hole, the fixing piece is fixed on the walking support through the bolt arranged in the first fixing hole, the walking support is provided with a second mounting hole at the position corresponding to the through hole of the middle part of the swing plate, and a shaft sleeve is arranged between the through hole of the middle part of the swing plate and the second mounting hole, and the mounting piece is inserted into the shaft.

[0023] The above arrangement, by the connection of the shaft, the swing frame is fixed and rotatably connected, and the first fixing hole on the fixing piece facilitates the disassembly and connection of the connecting device.

[0024] Further, the soil loosening cutter comprises a cutter rod and a spiral blade, two or more soil loosening blades are arranged on the spiral blade, the soil loosening blade comprises a blade fixing part and a blade, the blade fixing part is connected with one end of the blade and is fixed with the spiral blade, the blade is arranged in an arc shape outward and upward from the blade fixing part, the blade comprises a front part arranged on one side and a rear part arranged on the other side, an end part is arranged at the end of the blade away from the blade fixing part, the front part is provided with a first chip cutting edge, the thickness of the top surface and the bottom surface of the blade gradually decreases from the rear part to the front part, a step part is arranged between the rear part and the front part at the end of the blade close to the end part, the horizontal height of the step part is higher than the first chip cutting edge, a second chip cutting edge is formed by extending outward from the top surface of the end part to the bottom surface of the end part, and the second chip cutting edge is located below the front part and the rear part, the arc degree of the rear part is greater than that of the front part, the horizontal distance between the end part close to the rear part and the blade fixing part is smaller than the horizontal distance between the end part close to the front part and the blade fixing part, the vertical distance between the end part close to the blade fixing part and the blade fixing part is greater than the vertical distance between the end part away from the blade fixing part and the blade fixing part, the side close to the top surface of the end part is arranged in an inclined manner to the side close to the bottom surface of the end part, and the inclination angle of the end part gradually increases from the rear part to the front part.

[0025] The above arrangement gradually reduces the thickness of the blade from the rear to the front, so that the thickness of the front side of the blade is smaller than that of the rear side, reducing the resistance of the blade to the front soil; facilitating soil entry; by forming the step portion, the top surface of the blade can cut soil; by forming the second cutting edge, the bottom surface of the blade can also cut soil; the soil breaking effect is good; at the same time, there is a height difference between the step portion, the first cutting edge and the second cutting edge; in the vertical direction, the force of the soil on the first cutting edge, the second cutting edge and the step portion is also misaligned, so that the cutting force is dispersed and not concentrated; the service life of the blade is improved.

[0026] By setting the end portion, the soil on the side of the blade can be cut and loosened; the end portion is inclined on the blade, further reducing the resistance when the blade enters the soil; by setting the front and rear portions with different radii, the horizontal distance between the end portion near the rear end and the blade fixing portion is smaller than the horizontal distance between the end portion near the front end and the blade fixing portion; the end portion is inclined from the rear to the front. At the same time, the vertical distance between the side of the end portion close to the blade fixing portion and the blade fixing portion is greater than the vertical distance between the side of the end portion away from the blade fixing portion and the blade fixing portion; the side of the end portion close to the top surface of the blade is inclined to the side of the end portion away from the bottom surface of the blade; and the inclination angle of the end portion gradually increases from the rear to the front; there is an intersection between the end close to the rear of the end portion and the end close to the front of the end portion, and further the two ends of the end portion are not on the same horizontal plane; the end portion can contact not only the soil on the side of the blade but also the soil in front of the first cutting edge; the soil loosening effect is good.

[0027] Further, an earth-penetrating blade is provided at the end of the spiral blade, which is inclined downward from the end of the spiral blade; the width of the end-penetrating blade away from the spiral blade is greater than the width of the end-penetrating blade close to the spiral blade; the side of the end-penetrating blade away from the blade rod is provided with an arc surface; the curvature direction of the arc surface is opposite to the spiral direction of the spiral blade.

[0028] The above arrangement, by providing an earth-penetrating blade, can better excavate soil and assist in earth penetration when the tool is to be drilled into the deep part of the cultivated land. The width of the end-penetrating blade away from the spiral blade is greater than the width of the end-penetrating blade close to the spiral blade; thereby further improving the excavation effect; at the same time, when the tool enters the soil, the side of the end-penetrating blade will contact the soil on the side of the tool, and the soil contacting the arc surface will move along the curvature direction of the arc surface; since the curvature direction of the arc surface is opposite to the spiral direction of the spiral blade, the soil on the side of the end-penetrating blade is not easy to enter the spiral blade, avoiding the accumulation of soil between the gaps in the height direction of the spiral blade; reducing the pressure of the tool entering the soil; during the earth-penetrating process, the soil is discharged along the curvature direction of the arc surface, and the soil discharge effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1A schematic view of the frame of the cultivator according to the present application.

[0030] Figure 2 A perspective view of the connecting seat and the turning piece according to the present application.

[0031] Figure 3 A top view of the connecting seat and the turning piece according to the present application.

[0032] Figure 4 A perspective view of the connecting seat and the turning piece according to the present application. Figure 3 A sectional view of A-A.

[0033] Figure 5 A perspective view of the connecting seat and the turning piece according to the present application. Figure 4 An enlarged view of a.

[0034] Figure 6 An exploded view of the connecting seat and the turning piece according to the present application.

[0035] Figure 7 A perspective view of the limiting piece according to the present application.

[0036] Figure 8 A schematic view of the cultivator according to the present application.

[0037] Figure 9 A schematic view of the walking device according to the present application.

[0038] Figure 10 A schematic view of the walking swinging assembly according to the present application.

[0039] Figure 11 A schematic view of the cultivator according to the present application.

[0040] Figure 12 A perspective view of the connecting seat and the turning piece according to the present application. Figure 11 An enlarged view of B.

[0041] Figure 13 A perspective view of the connecting seat and the turning piece according to the present application. Figure 9 An enlarged view of E.

[0042] Figure 14 A partial view of the walking support.

[0043] Figure 15 A perspective view of the connecting seat and the turning piece according to the present application. Figure 8 An enlarged view of F.

[0044] Figure 16 A perspective view of the cultivator blade according to the present application.

[0045] Figure 17 A schematic view of the earth-penetrating blade and the helical blade.

[0046] Figure 18 A schematic view of the transmission piece and the blade rod.

[0047] Figure 19 is Figure 18 Enlarged view of G.

[0048] Figure 20 is a perspective view of the blade in the present application.

[0049] Figure 21 is Figure 20 Enlarged view of H.

[0050] Figure 22 is a top view of the blade in the present application.

[0051] Figure 23 is a side view of the blade in the present application.

[0052] Figure 24 is Figure 23 Enlarged view of I. DETAILED DESCRIPTION

[0053] The present application will be further described in conjunction with the accompanying drawings and specific embodiments.

[0054] As Figures 1-24 shown; a floating type deep plowing and pulverizing subsoiler, comprising a subsoiler frame, a walking device and a subsoiling device, the subsoiler frame comprising a frame body b1 and a turning piece b2, a connecting seat b10 is arranged at one end of the frame body b1, the turning piece 2 comprises a turning support b21, a front connecting block b22 is arranged at one side of the turning support b21, and a first hinged seat b23 is arranged at the other side of the turning support b21; the first hinged seat b23 is movably connected with the connecting seat b10 through a connecting column b3; the turning piece b2 is arranged to rotate relative to the frame in the height direction of the frame; the end of the front connecting block b22 away from the turning support b21 is hingedly connected with a rear connecting block b8, and a rear floating oil tank b7 is arranged on the rear connecting block b8; fixed shafts 3w are arranged on both sides of the frame body b1 and the rear connecting block b8; the fixed shafts 3w are arranged for mounting the walking device c.

[0055] The frame body b1 is used to bear the front traction device b6, the front connecting block b22 is used to connect with the rear connecting block b8, and the rear floating oil tank b7 is arranged on the rear connecting block b8. The rear connecting block b8 is hingedly connected with the front connecting block b22; thereby realizing the connection between the front traction device and the rear floating oil tank. The front traction device b6, the rear floating oil tank b7 and the rear connecting block b8 are all prior art, which will not be repeated here.

[0056] The current traction device b6 is different from the horizontal height of the rear floating oil tank b7; the first hinge seat b23 is movably connected with the connecting seat b10, and then the front connecting block b22 is movably connected with the rack; and then the rear floating oil tank b7 rotates relative to the front traction device b6 along the height direction of the rack; the first hinge seat b23 rotates relative to the connecting seat b10 to consume the energy generated by the force at the connecting position of the first hinge seat b23 and the connecting seat b10, thereby reducing the risk of damage of the connecting seat b10 and the steering part b2; and then the connection between the rack and the front connecting block b22 and the connection between the rack and the rear floating oil tank are not easy to be disconnected.

[0057] As shown in Figure 6 The connecting seat b10 includes two spaced connecting ears b11, and the first hinge seat b23 is arranged between the two connecting ears b11; the first hinge seat b23 includes a first through hole b24, and the first through hole b24 is arranged through the first hinge seat b23; the connecting ear b11 includes a second through hole b12, and the connecting column b3 is arranged in the first through hole b24 and the second through hole b12. The connecting column b3 is connected with the connecting ear b11 and the first hinge seat b23, and the structure is simple.

[0058] Limiting devices are arranged between the connecting ear b11 and the first hinge seat b23, and the limiting devices limit the rotation amplitude of the first hinge seat b23. The limiting devices limit the rotation amplitude of the first hinge seat b23, which avoids excessive rotation between the connecting seat b10 and the first hinge seat b23; at the same time, when the first hinge seat b23 reaches the limiting position, the limiting devices provide support force for the first hinge seat b23, so that the support effect between the connecting seat b10 and the first hinge seat b23 is good after reaching the limiting position; and the rigid connection strength is high.

[0059] In this embodiment, two limiting devices are arranged on one connecting ear b11, and the two limiting devices are symmetrically arranged about the second through hole b12; one connecting ear b11 is connected with one end of the first hinge seat b23 through the two limiting devices. The two limiting devices limit one end of the first hinge seat b23, and the limiting effect is good.

[0060] As shown in Figure 6 and Figure 7As shown, the limiting device includes a limiting piece b41, a limiting mounting hole b42 and a limiting slot b43; the limiting slot b43 is arranged at both ends of the first hinged seat b23; the limiting slot b43 is arranged inwardly recessed from the end surface of the first hinged seat b23, and the limiting slot b43 is located at one side of the first perforation b24; the limiting mounting hole b42 is arranged in the connecting lug b11, the limiting piece b41 is arranged through the limiting mounting hole b42, and one end of the limiting piece b41 is fixedly connected with the connecting lug b11; the other end of the limiting piece b41 extends into the limiting slot b43; the length between the top of the limiting slot b43 and the bottom of the limiting slot b43 is greater than the length between the top of the limiting piece b41 and the bottom of the limiting piece b41, and the limiting slot b43 is movably arranged relative to the limiting piece b41.

[0061] The first hinged seat b23 rotates relative to the connecting lug b11, the limiting piece b41 is fixedly connected with the connecting lug b11, and the limiting piece b41 limits the first hinged seat b23; the limiting slot b43 and the limiting piece b41 are arranged in different sizes, so that the first hinged seat b23 can rotate relative to the limiting piece b41; along the rack height direction, the turning piece b2 rotates upward, and after the top of the limiting slot b43 contacts the top of the limiting piece b41, the limiting piece b41 limits the first hinged seat b23; along the rack height direction, the turning piece b2 rotates downward, and after the bottom of the limiting slot b43 contacts the bottom of the limiting piece b41, the limiting piece b41 limits the first hinged seat b23; thereby limiting the turning piece b2 in two rotating directions of the turning piece b2.

[0062] The connecting lug b11 and the limiting piece b41 are connected through the fixing device b5; the fixing device b5 includes a cover plate b51 and two or more connecting pieces b52, the cover plate b51 is arranged outside the connecting lug b11, the connecting lug b11 is provided with one or more first connecting holes b13, and one end of the limiting piece b41 is provided with a second connecting hole b44; the connecting piece b52 is arranged through a perforation (not shown in the figure) of the cover plate b51; one connecting piece b52 passes through a perforation and is connected with the first connecting hole b13, and the other connecting piece b52 passes through a perforation and is connected with the second connecting hole b44. The fixing device b5 simultaneously connects the limiting piece b41 and the connecting lug b11, so that the limiting piece b41 is fixedly connected with the connecting lug b11, and the structure is simple.

[0063] As shown in Figure 5 and Figure 6 , both ends of the connecting column b3 are provided with a third connecting hole b31; one connecting piece b52 passes through a perforation in the middle of the cover plate b51 and is connected with the third connecting hole b31; thereby realizing the fixation between the connecting column b3 and the connecting seat b10; in this embodiment, the first connecting hole b13, the second connecting hole b44 and the third connecting hole b31 are threaded holes; the connecting piece b52 is a connecting bolt.

[0064] As Figure 5 and Figure 6 The steering part b2 also includes a second hinge seat b25 and a third hinge seat b26, which are arranged above the front connecting block b22. The second hinge seat b25 and the third hinge seat b26 are used to install hydraulic cylinders, the other ends of which are connected with the rear floating oil tank, for driving the rear floating oil tank to swing left and right relative to the front traction device. The hydraulic cylinder driving the rear floating oil tank to swing is a prior art, which is not described here.

[0065] As Figures 9-14 The walking device includes a walking support 1w, a walking driving assembly and a walking swinging assembly 2w. The middle part of the walking support 1w is provided with a through hole matched with a fixed shaft 3w. One end of the fixed shaft 3w penetrating through the through hole is provided with a locking device 4w matched with the fixed shaft 3w, as Figure 3 In the embodiment, the locking device 4w includes a first connecting ring 41w, a second connecting ring 42w and a detachable bolt 43w. One end of the fixed shaft 3w penetrating through the through hole is provided with a through hole matched with the detachable bolt 43w. When the locking device 4w is sleeved on the fixed shaft 3w, one end surface of the first connecting ring 41w is in contact with one side surface of the walking support 1w, the other end surface of the first connecting ring 41w is fixedly connected with one end surface of the second connecting ring 42w, and the other end surface of the second connecting ring 42w is provided with three recesses 44w matched with the detachable bolt 43w, which are uniformly and spacedly arranged on the other end surface of the second connecting ring 42w. In the embodiment, the first connecting ring and the second connecting ring are integrally formed. After the first connecting ring 41w and the second connecting ring 42w are sleeved on the fixed shaft, one end of the detachable bolt 43w is slid into the recess 44w, penetrates through the through hole of the fixed shaft 3w and then slides out of the recess 44w. Then, the walking mechanism is locked on the soil loosening machine by cooperation of the nut 45w and the detachable bolt 43w. In the embodiment, the radius of the outer ring of the first connecting ring 41w is greater than that of the outer ring of the second connecting ring 42w.

[0066] As Figure 9 and 10As shown in the figure, the walking driving assembly comprises a walking track 51w, a walking driving wheel 52w and two walking driven wheels 53w, the walking swing assembly 2w comprises one or more walking swing frames 21w and load wheels 22w, two or more load wheels 22w are arranged on the two sides of the walking swing frame 21w, the load wheel 22w is rotationally connected with the walking swing frame 21w, the walking swing frame 21w comprises two oppositely arranged swing plates 211w and a connecting rod 23w located between the two oppositely arranged swing plates 211w, the two ends of the connecting rod 23w are fixedly connected with the two oppositely arranged swing plates 211w, the middle part of the swing plate 211w is higher than the two ends, the two ends of the swing plate 211w are rotationally connected with the load wheel 22w respectively, and the middle part of the swing plate 211w is rotationally connected with the bottom of the walking support 2w through a through hole. In the embodiment, three connecting rods 23w are arranged between the walking swing frames, for connecting and fixing the walking swing frames 21w, so as to form a connected whole.

[0067] As shown in the figure, Figure 9 , Figure 13 and Figure 14 , the walking support 1w is provided with a connecting device 6w at the position corresponding to the through hole of the walking swing assembly 2w, the connecting device 6w comprises a connecting sheet 61w and a fixing piece 62w, one end of the connecting sheet 61w is provided with a mounting piece 601w corresponding to the through hole in the middle part of the swing plate 211w, the fixing piece 62w is provided with a fixing hole 621w along the height direction, the other end of the connecting sheet 61w is inserted into the fixing hole 621w, a first fixing hole 622w is arranged on one side surface of the fixing piece 62w, the fixing piece 62w is fixed on the walking support through a bolt arranged in the first fixing hole 622w, the walking support is provided with a second mounting hole 101w at the position corresponding to the through hole in the middle part of the swing plate 211w, and a shaft sleeve 602w is arranged between the through hole in the middle part of the swing plate 211w and the second mounting hole 101w, the mounting piece 601w is inserted into the shaft sleeve 602w, and the mounting piece is fixed on the walking support through the connecting sheet 61w, the swing frame is fixed and swings on the mounting piece through the connection of the shaft sleeve, and the first fixing hole 622w on the fixing piece 62w facilitates the dismounting and connecting of the connecting device.

[0068] In the embodiment, the walking track 51w is sleeved on the walking driving wheel 52w, the walking driven wheel 53w and the load wheel 22w; in the embodiment, the walking swing assembly 2w is provided as two, the walking driving wheel 52w is arranged at the top end of the walking support 1w, and the walking driving wheel 52w is rotationally connected with the output end of the driving motor 54w, so that the walking driving wheel 52w can be driven to rotate by the driving motor 54w; the two walking driven wheels 53w are arranged at the two sides of the walking support 1w, and in the embodiment, the walking driving wheel 52w and the two walking driven wheels 53w are arranged in a triangular shape, which can increase the contact distance with the ground to some extent and facilitate stable walking; the bottom of the walking support 1w is provided with a through hole, so that the pin shaft can pass through the through hole and be hingedly connected with the top end of the walking swing frame 21w.

[0069] Through the above arrangement, the through hole is arranged on the walking support 1w, so that the walking device is sleeved on the fixing shaft on the two sides of the rack body and the rear connecting block through the through hole and is locked and fixed by the locking device 4w, so that the walking device can be fixed on the soil loosening machine rack, and then the soil loosening machine rack is driven to walk by the walking device; meanwhile, the walking driving wheel 52w is driven to rotate to drive the walking track 51w and the walking driven wheel 53w to move, and the walking swing assembly is driven to swing by the walking track 51w, so that the load wheel 22w on the walking swing frame 21w swings; in the process of walking of the soil loosening machine, after the walking device is fixed on the walking support 1w by the locking device, the walking swing assembly 2w swings upward when encountering suddenly high ground, so as to prevent the upward force from being mainly concentrated on the walking device and the locking device of the soil loosening machine when the walking swing assembly does not exist and the upward force is received, thereby causing the locking device to be easily damaged, and further better carrying the longitudinal load and reliably and stably walking to facilitate operation.

[0070] As shown in Figures 15-24 , the soil loosening device 02 is connected with the rear connecting block b8 through the turnover lifting device 01; in the embodiment, the turnover lifting device 01 is a connecting rod structure for connecting and driving the soil loosening device to realize lifting, which is driven by a hydraulic system, and specific details are not repeated here.

[0071] The soil loosening device 02 comprises a soil loosening cutter 021 and a soil loosening driving module 022, the soil loosening cutter 021 is connected to the overturning lifting device 01 through the soil loosening driving module 022, and the soil loosening driving module 022 is used for driving the soil loosening cutter 021 to realize soil loosening. The soil loosening driving module comprises a soil loosening driving box body and a soil loosening hydraulic system, the soil loosening driving box body is connected to the overturning lifting device 01, the soil loosening hydraulic system is arranged in the soil loosening driving box body, the soil loosening cutter is connected to the soil loosening hydraulic system, and the soil loosening hydraulic system controls the soil loosening cutter to act to realize soil loosening. In the embodiment, the soil loosening hydraulic system is a technology for controlling the soil loosening cutter to work by using an existing hydraulic control, and will not be described here.

[0072] As shown in Figures 16-24 The soil loosening cutter comprises a cutter rod a1 and a spiral piece a2, the spiral piece a2 comprises a first spiral piece a21 and a second spiral piece a22, the head of the second spiral piece a22 is connected to the tail end of the first spiral piece a21, a first lap joint a21 is arranged at the tail end of the first spiral piece a21, a second lap joint a22 is arranged at the head of the second spiral piece a22, the first lap joint a21 and the second lap joint a22 are both arranged in an inclined manner, and the second lap joint a22 is arranged on the first lap joint a21. The first spiral piece a21 and the second spiral piece a2 are used to reduce the length of each spiral piece a2, facilitate processing, avoid the problem that the spiral piece a2 is easy to break due to a large length, and have good stability after being spliced with the first spiral piece a21. More than two soil loosening blades a3 are arranged on the first spiral piece a21 and the second spiral piece a22.

[0073] As shown in Figures 20-22 The soil loosening blade a3 comprises a blade fixing part a31 and a blade a32, the blade fixing part a31 is connected to one end of the blade a32 and fixed with the spiral piece a2, the blade a32 is arranged in an arc shape outward and upward from the blade fixing part a31, the blade a32 comprises a front part a33 arranged on one side and a rear part a34 arranged on the other side, an end part a35 is arranged at one end of the blade a32 away from the blade fixing part a31, and the front part a33 is provided with a first chip cutting edge a331. A transition arc surface a41a332 is arranged in a recessed manner between the first chip cutting edge a331 and the blade fixing part a31. The transition arc surface a41a332 is arranged to form a gap between the blade a32 and the spiral piece a2, so as to facilitate soil removal.

[0074] The thickness of the blade a32 gradually decreases from the rear portion a34 to the front portion a33; a stepped portion a36 is arranged between the rear portion a34 and the front portion a33 at one end of the blade a32 close to the end portion a35; the horizontal height of the stepped portion a36 is higher than the first cutting chip blade a331; the second cutting chip blade a351 is formed by extending outward from the top surface of the end portion a35 to the bottom surface of the end portion a35, and the second cutting chip blade a351 is located below the front portion a33 and the rear portion a34; the side of the end portion a35 close to the top surface of the blade a32 is arranged to be inclined to the side of the end portion a35 close to the bottom surface of the blade a32; the curvature of the rear portion a34 is greater than the curvature of the front portion a33, and the inclination angle of the end portion a35 gradually increases from the rear portion a34 to the front portion a33.

[0075] As shown in Figures 23-24 , the thickness of the blade a32 gradually decreases from the rear portion a34 to the front portion a33, so that the thickness of the front portion a33 of the blade a32 is smaller than the thickness of the rear portion a34, thereby reducing the resistance of the blade a32 to the soil of the front portion a33; facilitating soil entry; by forming the stepped portion a36, the top surface of the blade a32 can cut soil; by forming the second cutting chip blade a351, the bottom surface of the blade a32 can also cut soil; the soil breaking effect is good; at the same time, there is a height difference between the stepped portion a36, the first cutting chip blade a331 and the second cutting chip blade a351; in the vertical direction, the forces of the soil on the first cutting chip blade a331, the second cutting chip blade a351 and the stepped portion a36 are also dislocated, so that the cutting force is dispersed and not concentrated; the service life of the blade a32 is improved.

[0076] By arranging the end portion a35, the soil on the side of the blade a32 can be cut and loosened; the end portion a35 is arranged to be inclined on the blade a32, further reducing the resistance of the blade a32 when entering the soil; as shown in Figure 7 , by arranging the front portion a33 and the rear portion a34 with different curvatures, the horizontal distance L1 between the end portion a35 close to the rear portion a34 and the blade fixing portion a31 is smaller than the horizontal distance L2 between the end portion a35 close to the front portion a33 and the blade fixing portion a31; the end portion a35 is arranged to be inclined from the rear portion a34 to the front portion a33.

[0077] As shown in Figure 23As shown, the vertical distance L3 between the end a35 close to the blade fixing portion a31 and the blade fixing portion a31 is greater than the vertical distance L4 between the end a35 away from the blade fixing portion a31 and the blade fixing portion a31; the end a35 close to the blade top surface is inclined to the end a35 away from the blade bottom surface; and the inclination angle of the end a35 gradually increases from the rear portion to the front portion; there is an intersection between the end a35 close to the rear portion and the end a35 close to the front portion, so that the two ends of the end a35 are not on the same horizontal plane; the end a35 can contact the soil on the side of the blade a32 and the soil in front of the first cutting blade a331; and the soil breaking effect is good.

[0078] The blade fixing portion a31 and the spiral blade a2 are connected by a connecting bolt, the blade limiting portion a37 is arranged on the spiral blade a2 on the side of the blade fixing portion a31, and the blade limiting portion a37 resists the blade fixing portion a31; the blade limiting portion a37 is arranged close to the connecting bolt.

[0079] When the cutting tool rotates, the blade a32 cuts the soil to generate a cutting force on the blade a32, the cutting force is transmitted to the blade fixing portion a31, the blade fixing portion a31 transmits the force to the connecting bolt and the blade limiting portion a37, and the shear force of the blade fixing portion a31 on the connecting bolt is greatly reduced by the resistance of the blade limiting portion a37, thereby effectively reducing the fracture of the connecting bolt and the failure of the cutting tool, and improving the service life of the cutting tool. In addition, only the blade limiting portion a37 for resisting the blade fixing portion a31 is arranged on the rear portion of the blade fixing portion a31, the spiral blade a2 spirally winds from the lower end to the upper end of the guide rod, so that the spiral blade a2 at the upper end is higher than the spiral blade a2 at the lower end, and the bottom of the blade limiting portion a37 is higher than or flush with the front portion a33 of the blade fixing portion a31, thereby not causing greater resistance to the cutting tool cutting the soil.

[0080] In the embodiment, as shown in Figures 16-17 The soil-entering blade a4 is arranged on the end of the second spiral blade a22 and extends downwardly and obliquely from the end of the second spiral blade a22; the width of the soil-entering blade a4 away from the spiral blade a2 is greater than the width of the soil-entering blade a4 close to the spiral blade a2; the side of the soil-entering blade a4 away from the guide rod a1 is provided with an arc surface a41; and the curvature direction K1 of the arc surface a41 is opposite to the spiral direction K2 of the spiral blade a2.

[0081] By setting the earth-penetrating blade a4, when the cutter drills into the deep of the cultivated land, the soil can be better excavated and the earth-penetrating assistance can be better performed. The width of the earth-penetrating blade a4 away from the end close to the spiral blade a2 is greater than the width of the earth-penetrating blade a4 close to the end close to the spiral blade a2; thereby further improving the excavation effect; at the same time, when the cutter penetrates into the soil, the side surface of the earth-penetrating blade a4 will contact the soil on the side surface of the cutter, and the soil contacting the curved surface a41 will move along the curvature direction of the curved surface a41; since the curvature direction K1 of the curved surface a41 is opposite to the spiral direction K2 of the spiral blade a2, the soil on the side surface of the earth-penetrating blade a4 is not easy to enter the spiral blade a2, avoiding the soil to accumulate between the gaps in the height direction of the spiral blade a2; reducing the pressure of the cutter penetrating into the soil; during the earth-penetrating process, the soil is discharged along the curvature direction of the curved surface a41, and the soil discharge effect is good.

[0082] In the present embodiment, as shown in Figure 16 and Figure 18 The top of the cutter bar a1 is provided with a mounting portion a11, and the width of the cutter bar a1 is greater than the width of the mounting portion a11; the transmission member a5 is arranged on the mounting portion a11. The transmission member a5 is matched with the mounting portion a11, and the cutter bar a1 limits the transmission member a5 to avoid the transmission member a5 from being close to the blade a32.

[0083] The top of the transmission member a5 is the transmission member body a51 and the locking member a52 arranged on the transmission member body a51; the top of the transmission member body a51 is conical; and the locking member a52 is provided with two cutter transmission clamping grooves a53. The locking member a52 is provided with two cutter transmission clamping grooves a53; the transmission frame simultaneously acts with the two cutter transmission clamping grooves a53 to drive the transmission member a5 to rotate; the torsion is large, and the transmission effect is good; at the same time, by setting the conical top, the transmission structure matched with the transmission member a5 is also conical; when the transmission member a5 is connected with the transmission structure, the conical transmission structure will give the conical transmission member a5 downward pressure; the transmission structure is pressed on the transmission member a5; thereby the connection between the transmission structure and the transmission member a5 is tight, and the transmission efficiency is high.

Claims

1. A floating deep ripping pulverizing subsoiler comprising a subsoiler frame, a traveling device and a subsoiling device, characterized in that: The subsoiler frame comprises a frame body and a steering part, the frame body is provided with a connecting seat at one end, the steering part comprises a steering support, a front connecting block is arranged on one side of the steering support, and a first hinged seat is arranged on the other side of the steering support; the first hinged seat is movably connected with the connecting seat through a connecting column; the steering part is arranged to be rotatable relative to the frame body along the height direction of the frame body; a rear connecting block is hingedly arranged at the end of the front connecting block away from the steering support; fixed shafts are arranged on both sides of the frame body and the rear connecting block; the fixed shafts are arranged to be used for mounting a walking device; the subsoiling device is connected with the rear connecting block through a turnover lifting device; the subsoiling device comprises a subsoiling cutter and a subsoiling driving module, the subsoiling cutter is connected with the turnover lifting device through the subsoiling driving module, and the subsoiling driving module is used for driving the subsoiling cutter to realize subsoiling; The walking device comprises a walking support, a walking driving assembly and a walking swing assembly, the walking support is provided with a through hole matched with the fixed shaft in the middle part, the end of the fixed shaft penetrating through the through hole is provided with a locking device matched with the fixed shaft, the walking driving assembly comprises a walking track, a walking driving wheel and two walking driven wheels, and the walking swing assembly comprises one or more walking swing supports and bearing wheels, the top end of the walking swing support is hingedly arranged at the bottom of the walking support, and the bearing wheels are arranged on both sides of the bottom end of the walking swing support; the walking track is sleeved on the walking driving wheel, the walking driven wheels and the bearing wheels; The connecting seat comprises two spaced connecting ears, and the first hinged seat is arranged between the two connecting ears; the first hinged seat comprises a first through hole penetrating through the first hinged seat; the connecting ear comprises a second through hole, and the connecting column is arranged in the first through hole and the second through hole; a limiting device is arranged between the connecting seat and the first hinged seat, and the limiting device limits the rotation range of the first hinged seat; the connecting ear is connected with one end of the first hinged seat through two limiting devices; The limiting device comprises a limiting piece, a limiting mounting hole and a limiting groove; the limiting groove is arranged at both ends of the first hinged seat; the limiting groove is recessed inward from the end surface of the first hinged seat and is located on one side of the first through hole; the limiting mounting hole is arranged in the connecting ear, the limiting piece is arranged in the limiting mounting hole, and one end of the limiting piece is fixedly connected with the connecting ear; the other end of the limiting piece extends into the limiting groove; the length between the top of the limiting groove and the bottom of the limiting groove is greater than the length between the top surface of the limiting piece and the bottom surface of the limiting piece, and the limiting groove is movably arranged relative to the limiting piece; The limiting device is arranged to limit the rotation range of the first hinged seat, so as to avoid excessive rotation between the connecting seat and the first hinged seat; meanwhile, when the first hinged seat reaches the limiting position, the limiting device provides a supporting force for the first hinged seat, so that the supporting effect between the connecting seat and the first hinged seat is good after reaching the limiting position; the rigid connection strength is high.

2. A floating deep ripping and pulverizing subsoiler according to claim 1, characterized in that: The connecting lug is connected with the limiting member through a fixing device; the fixing device comprises a cover plate and two or more connecting pieces; the cover plate is arranged on the outer side of the connecting lug; the connecting lug is provided with one or more first connecting holes; the limiting member is provided with second connecting holes; the connecting pieces are arranged in the through holes of the cover plate; one connecting piece is connected with the first connecting hole through a through hole; another connecting piece is connected with the second connecting hole through a through hole.

3. The floating deep ripping pulverizing subsoiler according to claim 1, characterized in that: The locking device comprises a first connecting ring, a second connecting ring and a detachable bolt; one end surface of the first connecting ring is in contact with one side surface of the walking support; the other end surface of the first connecting ring is fixedly connected with one end surface of the second connecting ring; the other end surface of the second connecting ring is provided with grooves matched with the detachable bolt.

4. A floating deep ripping and pulverizing subsoiler according to claim 3, characterized in that: The outer ring radius of the first connecting ring is greater than the outer ring radius of the second connecting ring; the grooves are provided with two or more and are uniformly and spacedly arranged on the other end surface of the second connecting ring; one end of the detachable bolt is slid into the groove, passes through the through hole of the fixing shaft and then slides out of the groove; the nut is locked with the detachable bolt.

5. The floating deep ripping pulverizing subsoiler according to claim 1, characterized in that: The walking swing frame comprises two oppositely arranged swing plates and a connecting rod arranged between the two oppositely arranged swing frames; the two ends of the connecting rod are fixedly connected with the two oppositely arranged swing frames; the middle part of the swing plate is higher than the two ends; the two ends of the swing plate are rotatably connected with the load wheels; the middle part of the swing plate is rotatably connected with the bottom of the walking support through a through hole.

6. The floating deep ripping pulverizing subsoiler according to claim 1, characterized in that: The walking support is provided with a connecting device corresponding to the through hole of the walking swing assembly; the connecting device comprises a connecting piece and a fixing member; one end of the connecting piece is provided with a mounting member corresponding to the through hole of the middle part of the swing plate; the fixing member is provided with a fixing hole along the height direction; the other end of the connecting piece is inserted into the fixing hole; one side surface of the fixing member is provided with a first fixing hole; the fixing member is fixed on the walking support through the bolt arranged in the first fixing hole; the walking support is provided with a second mounting hole corresponding to the through hole of the middle part of the swing plate; an axle sleeve is arranged between the through hole of the middle part of the swing plate; and the mounting member is inserted into the rotating shaft.

7. The floating deep ripping pulverizing subsoiler according to claim 1, characterized in that: The soil loosening tool comprises a tool rod and a spiral blade, and more than two soil loosening blades are arranged on the spiral blade. The soil loosening blade comprises a blade fixing part and a blade. The blade fixing part is connected with one end of the blade and is fixed with the spiral blade. The blade extends outward and upward in an arc shape from the blade fixing part. The blade comprises a front part arranged on one side and a rear part arranged on the other side. An end part is arranged at the end of the blade away from the blade fixing part. The front part is provided with a first chip cutting edge. The thickness of the top surface and the bottom surface of the blade gradually decreases from the rear part to the front part. A step part is arranged between the rear part and the front part at the end of the blade close to the end part. The horizontal height of the step part is higher than the first chip cutting edge. A second chip cutting edge is formed by extending outward from the top surface of the end part to the bottom surface of the end part. The second chip cutting edge is located below the front part and the rear part. The curvature of the rear part is greater than the curvature of the front part. The horizontal distance between the end part close to the rear part and the blade fixing part is smaller than the horizontal distance between the end part close to the front part and the blade fixing part. The vertical distance between the end part close to the blade fixing part and the blade fixing part is greater than the vertical distance between the end part away from the blade fixing part and the blade fixing part. The side of the end part close to the top surface of the blade is inclined to the side of the end part close to the bottom surface of the blade. The inclination angle of the end part gradually increases from the rear part to the front part.

8. A floating deep ripping and pulverizing subsoiler according to claim 7, characterized in that: A soil entering blade is arranged at the end of the spiral blade. The soil entering blade extends downward and inclinedly from the end of the spiral blade. The width of the end of the soil entering blade away from the spiral blade is greater than the width of the end of the soil entering blade close to the spiral blade. An arc surface is arranged on the side of the soil entering blade away from the tool rod. The curvature direction of the arc surface is opposite to the spiral direction of the spiral blade.

Images