CN213755595U

CN213755595U - A device for stubble removal and deep loosening

Info

Publication number: CN213755595U
Application number: CN202022464768.8U
Authority: CN
Inventors: 张翼夫; 韩连杰; 张超; 刘健; 奚小波
Original assignee: Yangzhou University
Current assignee: Yangzhou University
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-23
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a stubble-cleaning deep loosening device in the technical field of agricultural machinery, which comprises a frame, wherein the left and right ends of the frame are movably connected with a movable frame, the front end of the movable frame is connected with a stubble-cleaning frame, the front part of the stubble-cleaning frame is connected with a stubble-cleaning assembly I, the rear end of the frame is connected with a lifting frame, the lower part of the lifting frame is connected with a supporting limiting wheel, the movable frame is connected with a deep loosening assembly I, the deep loosening assembly I comprises a plurality of deep loosening seats, the lower part of each deep loosening seat is connected with a deep loosening plate, the deep loosening seat above the deep loosening plate is connected with a front connecting shaft, the front connecting shaft is connected with a front buffer shaft horizontally extending backwards, the front buffer shaft is in threaded connection with an adjusting plate, the front buffer shaft is sleeved with a buffer spring, the front buffer shaft is sleeved with a rear buffer shaft, the left and right sides of the deep loosening plate are connected with a fixed plate, the rear buffer shaft is connected with a rear connecting shaft, the rear connecting shaft is connected with the fixed plate, a subsoiling shovel is connected between the buffer spring adjusting plate and the rear buffer shaft at the downward end of the subsoiling plate; the utility model discloses it is effectual to loosen deeply.

Description

Stubble-cleaning subsoiling device

Technical Field

The utility model belongs to the technical field of agricultural machine, in particular to stubble-cleaning subsoiler.

Background

In the conventional technology, a stubble cleaner and a deep scarification soil preparation machine are used for respectively cleaning stubble and loosening soil in a farmland, the former cannot loosen the soil, the latter cannot clean stubble, the efficiency is low, and the cost is high.

In order to solve the above problems, the prior art discloses a combined soil preparation machine with stubble ploughing and scarification, which is published under the number CN 202551640U and the number 2012.11.28, and comprises a suspension frame connected with a stubble ploughing device with a stubble ploughing knife and a subsoiler assembly of the subsoiler, wherein the subsoiler has a multi-hole position adjusting plate, the subsoiler comprises a subsoiler frame, the subsoiler assembly is connected with the frame, the subsoiler assembly comprises a subsoiler handle connected with a subsoiler tip, after the subsoiling is finished, a press machine is needed to press and level the field, when the subsoiler is used for subsoiling, the subsoiler is rigidly connected with the frame, the subsoiler overcomes the resistance of the soil, when meeting the slope or different soil structure, the resistance of the soil is obviously increased, the impact on the subsoiler is large, and the resistance of the soil is completely overcome by the subsoiler, the deep loosening is difficult and the operation effect is not good.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the weak point among the prior art, provide a stubble-cleaning subsoiler, solved among the prior art technical problem that the difficult effect of subsoiling is not good, the utility model discloses the subsoiling is effectual, reduces the impact to the subsoiler.

The purpose of the utility model is realized like this: a stubble-cleaning subsoiling device comprises a frame, wherein the left end and the right end of the frame are respectively connected with a movable frame capable of rotating upwards, the front end of the movable frame is connected with a stubble-cleaning frame, the front part of the stubble-cleaning frame is connected with a stubble-cleaning assembly I, one end of the frame, which extends out of the movable frame backwards, is connected with a lifting frame capable of lifting, the left end and the right end of the lower part of the lifting frame are rotatably connected with supporting limiting wheels, the movable frame is connected with a subsoiling assembly I, the subsoiling assembly I comprises a plurality of subsoiling seats arranged on the movable frame, the lower part of each subsoiling seat is connected with a subsoiling plate, a front connecting shaft is connected on the subsoiling seat above the subsoiling plate, at least one front buffer shaft extending backwards and horizontally is connected on the front connecting shaft, an adjusting plate is connected on the front buffer shaft through threads, a buffer spring is sleeved on the front buffer shaft, a rear buffer shaft is sleeved on the front buffer shaft, and the left side and the right side of the subsoiling plate are connected with a fixed plate, the one end that the back buffering axle stretches out backward is connected with the back connecting axle, the back connecting axle is connected with the fixed plate, and the one end that the buffering spring forward is contradicted on the regulating plate, and the one end that the buffering spring stretches out backward is contradicted on the spacing rank of back buffering axle, and the one end that the subsoiler board faced down is connected with the subsoiler.

In the utility model, the frame is connected to the rear part of the walking device; in an initial state, the movable frame is upwards in a folded state, so that the transportation is convenient, the lifting frame descends, and the lifting frame drives the supporting limiting wheels to move, so that the subsoiler leaves the ground; when the utility model is used in field operation, the movable frame is unfolded downwards, the upper side of the movable frame is in a horizontal state, the walking device moves forward, the stubble cleaning component cleans stubble and loosens soil, the subsoiler carries out subsoiling, after the subsoiler enters the soil, the traction force and the soil resistance are balanced in a specific depth, when the soil resistance is obviously increased due to meeting of a slope or different soil structures, the soil pushes the subsoiler to be lifted upwards anticlockwise, the buffer spring is contracted, and the tension is increased; when the soil resistance is reduced, the tension of the buffer spring pushes the subsoiler to move clockwise and downwards, self-excited vibration is formed on the soil above the tip surface of the subsoiler, the subsoiling effect is improved, and when an obstacle is met, the impact on the subsoiler can be reduced; the utility model has good subsoiling effect, and reduces the impact when the subsoiler meets the resistance; can be applied to the stubble-cleaning and deep scarification operation of farmlands.

In order to further realize the angle modulation of adjustable shelf, the upside at both ends is fixed with articulated seat down around the adjustable shelf, both ends all are equipped with articulated seat on two of interval setting in the front rear direction about the frame, it is articulated with the articulated seat down that corresponds to go up articulated seat, the one end that the adjustable shelf up articulates there is the sharp driver, be connected with the actuating lever that stretches out towards frame place direction tilt up on the sharp driver, the one end that the actuating lever upwards stretched out is articulated with the frame.

In order to reduce the resistance when loosening deeply, stubble ploughing subassembly one includes and sets up a plurality of connecting plates one on the stubble frame with arranging, the one end of connecting plate one is fixed at the frame downside, and the other end of connecting plate one upwards walks around the frame top and downward sloping stretches out again, and the other end of connecting plate one is connected with connecting seat one, connecting seat one includes connecting portion one, and the one end and the connecting plate fixed connection of connecting portion one, the other end of connecting portion two are connected with rotation supporting part one in the ascending one end of left right direction, rotate supporting part one forward and tilt up, and stubble ploughing harrow one rotationally connects on rotation supporting part one, and the central axis of stubble ploughing one coincides with the central axis that rotates supporting part one.

In order to further reduce the resistance when loosening deeply, a second stubble cleaning assembly is connected to the rack behind the first stubble cleaning assembly, the second stubble cleaning assembly comprises a plurality of second connecting plates arranged on the stubble cleaning rack in the same row, one ends of the second connecting plates are fixed to the lower side of the rack, the other ends of the second connecting plates upwards bypass the upper portion of the rack and downwards incline to extend out, the other ends of the second connecting plates are connected with a second connecting seat, and a second stubble cleaning harrow is rotatably connected to the second connecting seat.

In order to further reduce the resistance when loosening deeply, the second connecting seat comprises a second connecting part, the second connecting part is fixed at the other end of the second connecting plate, one end of the other end of the second connecting part in the left-right direction is connected with a second rotating supporting part, the second rotating supporting part inclines forwards and upwards, the central axis of the second stubble cleaning harrow coincides with the central axis of the second rotating supporting part, the first rotating supporting part and the second corresponding rotating supporting part are arranged oppositely in the left-right direction, and the second stubble cleaning harrow is rotatably connected to the second rotating supporting part.

In order to further avoid missing cultivation, a plurality of second subsoiling assemblies are further arranged on the movable frame behind the first subsoiling assembly, the second subsoiling assemblies and the first subsoiling assemblies are arranged in a staggered mode in the left-right direction, and the first subsoiling assemblies and the second subsoiling assemblies are identical in structure.

In order to further realize the lift of supporting spacing wheel, the frame is articulated to have a lift driver towards the one end of back, be connected with the lifter that stretches out backward on the lift driver, the one end that the lifter stretched out outwards is articulated with the crane, and the upper end and the frame of crane are articulated.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a first perspective view of the present invention.

Fig. 4 is a partially enlarged view of fig. 3 at B.

Fig. 5 is a partially enlarged view of C in fig. 3.

Fig. 6 is a second perspective view of the present invention.

Wherein, 1 the second stubble cleaning component, 101 the second stubble cleaning harrow, 102 the second connecting seat, 102a the second connecting part, 102b the second rotating supporting part, 103 the second connecting plate, 2 the first stubble cleaning component, 201 the first stubble cleaning harrow, 202 the first connecting plate, 203 the first connecting seat, 203a the first connecting part, 203b the first rotating supporting part, 3 the machine frame, 4 the driving rod, 5 the linear driver, 6 the movable frame, 7 the traction frame, 8 the second screw, 9 the first screw, 10 the thread bush, 11 the first deep scarification component, 12 the first deep scarification component, 1201 the deep scarification board, 1202 the front buffer shaft, 1203 the 1204 front connecting shaft, 1205 adjusting plate, 1206 the buffer spring, 1207 the rear connecting shaft, 1208 the rear buffer shaft, 1209 the fixed plate, 1210 the deep scarification shovel, 13 the lifting driver, 14 the lifting rod, 15 the supporting limit wheel, 16 the stubble cleaning frame, 17 the upper hinged seat, 18 the lower seat, 19 the front adjusting rod, 20 adjusting bush, 21 the rear adjusting rod, 22 the front hinged seat, 23 the connecting lug, 24 lifting frame.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The stubble-cleaning deep scarification device comprises a frame 3, wherein the left end and the right end of the frame 3 are respectively connected with a movable frame 6 capable of rotating upwards, one end of the frame 3, which extends out of the movable frame 6 backwards, is connected with a lifting frame 24 capable of lifting, one end of the frame 3, which extends out of the movable frame 6 backwards, is hinged with a lifting driver 13, the lifting driver 13 is connected with a lifting rod 14, which extends out of the lifting frame 14 backwards, one end of the lifting rod 14, which extends out of the lifting frame 24, is hinged with the frame 3, and the upper end of the lifting frame 24 is hinged with the frame 3; the left end and the right end of the lower part of the lifting frame 24 are rotatably connected with supporting limiting wheels 15, a subsoiling assembly I12 is connected on the movable frame 6, the subsoiling assembly I12 comprises a plurality of subsoiling seats 1202 arranged on the movable frame 6, the lower part of the subsoiling seats 1202 is connected with a subsoiling plate 1201, the subsoiling seats 1202 above the subsoiling plate 1201 are connected with a front connecting shaft 1204, the front connecting shaft 1204 is connected with at least one front buffer shaft 1203 horizontally extending backwards, in the embodiment, two front buffer shafts 1203 are arranged, a regulating plate 1205 is in threaded connection with the front buffer shafts 1203, a buffer spring 1206 is sleeved on the front buffer shaft 1203, a rear buffer shaft 1208 is sleeved on the front buffer shaft 1203, fixing plates 1209 are connected with the left side and the right side of the subsoiling plate 1201, one end of the fixing plate 1209 extending downwards is fixedly connected with the subsoiling plate 1201, a subsoiling shovel 1210 is fixedly connected with the downward side of the fixing plate 1207, one end of the rear buffer shaft 1208 extending backwards is connected with a rear connecting shaft 1207, the rear connecting shaft 1207 is connected with the fixing plate 1209, the forward end of the buffer spring 1206 is abutted against the adjusting plate 1205, and the backward extending end of the buffer spring 1206 is abutted against the limit step of the rear buffer shaft 1208; a plurality of second subsoiling assemblies 11 are further arranged on the movable frame 6 behind the first subsoiling assembly 12, the second subsoiling assemblies 11 and the first subsoiling assembly 12 are arranged in a staggered mode in the left-right direction, and the first subsoiling assembly 12 and the second subsoiling assembly 11 are identical in structure.

In order to further realize the angle modulation of adjustable shelf 6, the upside at both ends is fixed with articulated seat 18 down around the adjustable shelf 6, both ends all are equipped with articulated seat 17 on two of interval setting in the front rear direction about frame 3, it is articulated with the articulated seat 18 down that corresponds to go up articulated seat 17, adjustable shelf 6 one end up articulates there is linear actuator 5, be connected with on the linear actuator 5 towards the actuating lever 4 that frame 3 place direction tilt up stretches out, the one end that actuating lever 4 upwards stretches out is articulated with frame 3.

In order to realize stubble cleaning, a stubble cleaning frame 16 is connected in front of a movable frame 6, the concrete connection structure is that two front hinged seats 22 are arranged at the front end of the movable frame 6, two connecting lugs 23 which are in one-to-one correspondence with the front hinged seats 22 are arranged at the upper side of the stubble cleaning frame 16, at least two rear adjusting rods 21 are connected at the front part of the movable frame 6, one ends of the rear adjusting rods 21 which extend downwards and forwards are in threaded connection with a front adjusting sleeve 20, at least two front adjusting rods 19 are hinged on the stubble cleaning frame 16, one ends of the front adjusting rods 19 which extend backwards are in threaded connection with one ends of the front adjusting sleeve 20 which are far away from the rear adjusting rods 21, the thread rotating directions of the front adjusting rods 19 and the rear adjusting rods 21 are opposite, a stubble cleaning assembly I2 is connected at the front part of the stubble cleaning frame 16, the stubble cleaning assembly I2 comprises a plurality of connecting plates 202 which are arranged on the stubble cleaning frame 16 in the same row, one end of the connecting plate I202 is fixed at the lower side of the stubble cleaning frame 16, and the other end of the connecting plate I202 upwards bypasses the stubble cleaning frame and then downwards inclines, the other end of the first connecting plate 202 is connected with a first connecting seat 203, the first connecting seat 203 comprises a first connecting part 203a, one end of the first connecting part 203a is fixedly connected with the first connecting plate 202, one end of the other end of the first connecting part 203a in the left-right direction is connected with a first rotating supporting part 203b, the first rotating supporting part 203b inclines forwards and upwards, the first stubble ploughing rake 201 is rotatably connected to the first rotating supporting part 203b, and the central axis of the first stubble ploughing rake 201 coincides with the central axis of the first rotating supporting part 203 b.

In order to further improve the stubble cleaning effect, a stubble cleaning assembly II 1 is connected to the stubble cleaning frame 16 behind the stubble cleaning assembly I2, the stubble cleaning assembly II 1 comprises a plurality of connecting plates II 103 which are arranged on the stubble cleaning frame 16 in the same row, one end of each connecting plate II 103 is fixed to the lower side of the stubble cleaning frame 16, the other end of each connecting plate II 103 upwards bypasses the upper part of the stubble cleaning frame 16 and then downwards inclines to extend out, the other end of each connecting plate II 103 is connected with a connecting seat II 102, and a stubble cleaning harrow II 101 is rotatably connected to the connecting seat II 102; the second connecting seat 102 comprises a second connecting part 102a, the second connecting part 102a is fixed at the other end of the second connecting plate 103, one end of the other end of the second connecting part 102a in the left-right direction is connected with a second rotating supporting part 102b, the second rotating supporting part 102b inclines forwards and upwards, the central axis of the second stubble cleaning harrow 101 is overlapped with the central axis of the second rotating supporting part 102b, in the left-right direction, the first rotating supporting part 203b is arranged opposite to the corresponding second rotating supporting part 102b, and the second stubble cleaning harrow 101 is rotatably connected to the second rotating supporting part 102 b.

In the utility model, the front end of the frame 3 is hinged with the traction frame 7, the front end of the traction frame 7 is provided with the traction ring, the traction frame 7 is connected behind the walking device through the traction ring (the prior art), the traction frame 7 and the frame 3 are connected together in a liftable way, a manual adjusting mode is provided in the application, specifically, the traction frame 7 is hinged with a screw rod I9, one end of the screw rod I9 extending backwards is connected with a thread sleeve 10, one end of the thread sleeve 10 extending backwards is connected with a screw rod II 8, one end of the screw rod II 8 extending backwards is hinged with the frame 3, and the thread turning directions of the screw rod I9 and the screw rod II 8 are opposite; the traction frame 7 can also be connected with the frame 3 through a hydraulic cylinder; the levelness of the frame 3 can be adjusted by using the structure, generally only once, and can be continuously used after being adjusted; the lowest position of the subsoiling shovel 1210 is lower than the lowest positions of the press wheel and the stubble ploughing first 201, the structures of the stubble ploughing first 201 and the stubble ploughing second 101 are the same, when the subsoiling shovel does not work, the lifting driver 13 acts, the lifting rod 14 extends downwards, the lifting frame 24 descends, and the lifting frame 24 drives the supporting limiting wheel 15 to move, so that the subsoiling shovel 1210 leaves the ground; the first connecting plate 202 and the second connecting plate 103 have the same structure, in the embodiment, the first stubble ploughing rake 201 is arranged towards the right, the second stubble ploughing rake 101 is arranged towards the left, and the forward and upward inclined angles of the first stubble ploughing rake 201 and the second stubble ploughing rake 101 are the same; in the initial state, the movable frame 6 is upwards in a folded state, so that the transportation is convenient; the lifting drive 13 is preferably a hydraulic cylinder; in the field preparation work, if the stubble ploughing frames 16 are not in the horizontal state, the corresponding front adjusting sleeves 20 are rotated, and when the two stubble ploughs 16 are kept horizontal and are basically at the same height, the adjustment is finished; the height of the press wheel is adjusted, which is similar to the adjusting method of the stubble ploughing frame 16 and is not described again; the lifting driver 13 works to enable the lowest position of the supporting limiting wheel 15 to be flush with the lowest position of the press wheel, the linear driver 5 acts to enable the driving rod 4 to extend outwards, the driving rod 4 pushes the upper end of the movable frame 6 to rotate downwards, and when the movable frame 6 is in a horizontal state, the linear driver 5 stops acting; when the stubble cleaning machine works, the walking device advances in the field, the movable frame 6 is unfolded downwards, the upper side of the movable frame 6 is in a horizontal state, the supporting limiting wheels 15 support the rack 3, the rack 3 advances along with the walking device, the first stubble cleaning rake 201 rolls forwards along with the walking device, a plurality of stubble cleaning teeth are distributed on the peripheries of the first stubble cleaning rake 201 and the second stubble cleaning rake 101, stubble cleaning and soil loosening of the first stubble cleaning rake 201 and the second stubble cleaning rake 101 are realized, the elastic pressing type connecting plate 202 is arranged to sense the change of the terrain, the impact during the operation of the first stubble cleaning rake 201 is reduced, the stubble cleaning effect is improved, the second stubble cleaning rake 101 carries out stubble cleaning again on the basis of the stubble cleaning and soil loosening of the first stubble cleaning rake 201, the mounting positions of the first stubble cleaning rake 201 and the second stubble cleaning rake 101 in the left and right directions are opposite, the stubble cleaning and soil loosening effects are improved, the arrangement of the second connecting plate 103 is used to sense the change of the terrain, the impact of the second stubble cleaning rake 101 is reduced, and the impact of the stubble cleaning rake 101 is further improved; the subsoiling shovel 1210 performs subsoiling on the basis of stubble cleaning to reduce subsoiling resistance, during subsoiling, after the subsoiling shovel 1210 enters the soil, the traction force and the soil resistance are balanced at a specific depth, when the soil resistance is obviously increased due to meeting of a slope or different soil textures, the soil pushes the subsoiling shovel 1210 to lift anticlockwise and upwards, the buffer spring contracts, and the tension is increased; when the soil resistance is reduced, the tension of the buffer spring pushes the subsoiler 1210 to move clockwise and downwards, self-excited vibration is formed on the soil above the shovel tip surface of the subsoiler 1210, the subsoiling effect is improved, and when an obstacle is met, the impact on the subsoiler 1210 can also be reduced; the utility model has convenient transportation, completes stubble cleaning and deep scarification operation simultaneously, and has good effects of stubble cleaning and deep scarification operation; can be applied to the stubble-cleaning and deep scarification operation of farmlands.

The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.

Claims

1. The stubble-cleaning subsoiling device comprises a frame, and is characterized in that: the stubble cleaning machine is characterized in that the left end and the right end of the rack are respectively connected with a movable frame capable of rotating upwards, the front end of the movable frame is connected with a stubble cleaning frame, the front part of the stubble cleaning frame is connected with a stubble cleaning assembly I, one end of the rack extending out of the movable frame backwards is connected with a lifting frame capable of lifting, the left end and the right end of the lower part of the lifting frame are rotatably connected with supporting limiting wheels, the movable frame is connected with a subsoiling assembly I, the subsoiling assembly I comprises a plurality of subsoiling seats arranged on the movable frame, the lower part of each subsoiling seat is connected with a subsoiling plate, the subsoiling seat above the subsoiling plate is connected with a front connecting shaft, the front connecting shaft is connected with at least one front buffer shaft extending backwards and horizontally, the front buffer shaft is connected with an adjusting plate through threads, a buffer spring is sleeved on the front buffer shaft, a rear buffer shaft is sleeved on the front buffer connecting shaft, the left side and the right side of the subsoiling plate are connected with a fixed plate, and one end of the rear buffer shaft extending out towards the rear side is connected with a rear part, the rear connecting shaft is connected with the fixing plate, the forward end of the buffering spring is abutted against the adjusting plate, the backward extending end of the buffering spring is abutted against the limiting step of the rear buffering shaft, and the downward end of the subsoiler is connected with the subsoiler.

2. A stubble ploughing subsoiler according to claim 1, characterized in that: articulated seat under the upside at both ends is fixed with around the adjustable shelf, both ends all are equipped with articulated seat on two of interval setting in the front rear direction about the frame, it is articulated with the articulated seat down that corresponds to go up articulated seat, the one end that the adjustable shelf was up articulates there is the linear actuator, be connected with the actuating lever that stretches out towards frame place direction tilt up on the linear actuator, the one end that the actuating lever upwards stretched out is articulated with the frame.

3. A stubble ploughing subsoiler according to claim 1, characterized in that: the stubble cleaning assembly I comprises a plurality of first connecting plates arranged on a stubble cleaning frame in the same row, one end of the first connecting plate is fixed to the lower side of the frame, the other end of the first connecting plate upwards bypasses the upper portion of the frame and then inclines downwards to stretch out, the other end of the first connecting plate is connected with a first connecting seat, the first connecting seat comprises a first connecting portion, one end of the first connecting portion is fixedly connected with the first connecting plate, one end of the other end of the second connecting portion in the left-right direction is connected with a first rotating supporting portion, the first rotating supporting portion inclines forwards and upwards, the first stubble cleaning rake is rotatably connected to the first rotating supporting portion, and the central axis of the first stubble cleaning rake coincides with the central axis of the first rotating supporting portion.

4. A stubble ploughing subsoiler according to claim 1, characterized in that: the movable frame at the rear of the stubble cleaning assembly I is connected with a stubble cleaning assembly II, the stubble cleaning assembly II comprises a plurality of connecting plates II which are arranged on the stubble cleaning frame in the same row, one end of each connecting plate II is fixed on the lower side of the frame, the other end of each connecting plate II upwards bypasses the upper part of the frame and then downwards inclines and extends out, the other end of each connecting plate II is connected with a connecting seat II, and a stubble cleaning harrow II is rotationally connected onto the connecting seat II.

5. A stubble ploughing subsoiler according to claim 4, characterized in that: the connecting seat II comprises a connecting part II, the connecting part II is fixed at the other end of the connecting plate II, one end of the other end of the connecting part II in the left-right direction is connected with a rotating supporting part II, the rotating supporting part II inclines forwards and upwards, the central axis of the stubble cleaning harrow II coincides with the central axis of the rotating supporting part II, the rotating supporting part I and the corresponding rotating supporting part II are arranged oppositely in the left-right direction, and the stubble cleaning harrow II is rotatably connected to the rotating supporting part II.

6. A stubble ploughing subsoiler according to claim 5, characterized in that: still arrange a plurality of dark loose subassembly two on the adjustable shelf at dark loose subassembly one rear, set up in left and right directions with dark loose subassembly one by staggering of dark loose subassembly two, the structure of dark loose subassembly one and dark loose subassembly two is the same.

7. A stubble ploughing subsoiler according to any one of claims 1 to 6, characterized in that: the frame is articulated to have a lift driver towards the one end of back, be connected with the lifter that stretches out backward on the lift driver, the one end that the lifter stretched out outwards is articulated with the crane, and the upper end and the frame of crane are articulated.