Hydraulic amplitude-modulation deep-ploughing ridging plough

Abstract

The utility model discloses a hydraulic amplitude modulation deep ploughing ridging plough which comprises a three-point type connecting part connected with an external main machine, the connecting part comprises a large swing sliding sleeve and a sliding lever, and the large swing sliding sleeve can slide on the sliding lever; a hydraulic oil cylinder is rotationally connected to the upper side of the large swing sliding sleeve, a plough body main beam is rotationally connected to the lower side of the large swing sliding sleeve, and the output end of the hydraulic oil cylinder is rotationally connected to the upper side of the plough body main beam. A group of connecting plates are rotationally connected to the plough body main beam, a plough body clamping seat is rotationally connected to each group of connecting plates, a distance adjusting oil cylinder is arranged between every two adjacent plough body clamping seats, the two ends of each distance adjusting oil cylinder are rotationally connected to the corresponding adjacent plough body clamping seat, a plowshare is installed on each plough body clamping seat, and each plowshare comprises an adjusting pull rod, a ploughshare plate, a ploughshare point and a soil dividing plate. According to the hydraulic amplitude-modulation deep ploughing ridging plough, the plough head can be flexibly adjusted to control the accurate ploughing depth and ridge spacing, and the operation efficiency and the operation quality can be effectively improved. The split plowshare realizes accurate adjustment of the soil entering angle, the plowshare point is easy to replace, and the material cost can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery manufacturing and operation technical field, especially a kind of hydraulic amplitude modulation deep ploughing ridger. BACKGROUND

[0002] Crop rotary ploughing ridging is an important process in agricultural soil tillage, and the ridge is a strip-shaped high platform higher than the ground formed according to a certain width and interval, the part above is called ridge platform, and the ditch formed between the ridges is called ridge ditch. Since the ridge is pulled out of the ground, it is called ridge cultivation. Ridge cultivation is widely used because it can increase soil temperature, improve soil aeration and promote the growth and development of vegetable root systems.

[0003] In the prior art, farmland ridging is usually operated using a ridging plow, and dryland ridging plows are mostly used in combination with rotary cultivators. The current ridging plow structure is simple, with the plow head fixed on the cross beam, and a set of rolling mill is additionally installed behind the plow head. The cross beam is connected to the rotary cultivator to simultaneously complete rotary plowing, ridging and rolling operations. However, the plow head structure of this ridging plow is fixed, with multiple bolt holes provided on the plow column. When the depth of the ditch needs to be adjusted, the bolts fixing the plow head need to be removed, the plow column needs to be moved upwards or downwards, and then repositioned through different bolt holes before being fixed for use. This is labor-intensive and reduces the practicality. At the same time, the existing fixed structure of the plow head is not suitable for ridging of different ridge widths. For example, when breaking stubble or operating on original ridges, the ridge distance may not be the same, so the position of the plow head needs to be manually adjusted, or the number of plows needs to be increased or decreased to achieve the required ridge width. The adjustment of ridge width and plowing depth is often done manually, and the device needs to be repeatedly stopped and adjusted, which reduces the work efficiency. SUMMARY

[0004] The utility model aims to provide a kind of adjustable ridge width's hydraulic ridging plow, the hydraulic ridging plow can flexibly adjust plow head and control plowing depth precision and ridge distance, realize original ridge operation and breaking stubble operation, significantly improve operation efficiency and operation quality.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A hydraulic amplitude modulation deep plowing ridging plow includes a connection part connected to an external host. A plow body main beam is movably connected to the connection part and can move up and down relative to the connection part. A plurality of groups of connecting plates are rotatably connected to the plow body main beam. A plow body clamp seat is rotatably connected to each group of connecting plates. A plow head is installed on the plow body clamp seat through a plow column. A distance adjustment oil cylinder is provided between adjacent two plow body clamp seats. One end of the distance adjustment oil cylinder is rotatably connected to an adjacent plow body clamp seat, and the other end of the distance adjustment oil cylinder is rotatably connected to the other adjacent plow body clamp seat.

[0007] Preferably, the middle part of the plow body main beam is rotationally provided with a rotating plate, two ends of the rotating plate are rotationally connected with traction rods, and the other ends of the traction rods are rotationally connected with adjacent plow body clamping seats.

[0008] Preferably, the plow body clamping seat comprises a connecting square tube, two positioning plates are arranged on the connecting square tube, a positioning gap is formed between the two positioning plates, a first mounting hole is arranged on the positioning plate, a through hole is arranged on the plow column, and the plow column is mounted and fixed in the positioning gap after a bolt passes through the first mounting hole and the through hole.

[0009] Preferably, a second mounting hole is further arranged on the positioning plate, and the plow column is fixed between the square tube and the safety bolt after a safety bolt passes through the second mounting hole.

[0010] Preferably, the plow head comprises a share head, the share head is provided with a share plate and a share tip, the share tip is detachably connected to the front end of the share plate, and the share head is arranged on the lower side of the plow column.

[0011] Preferably, the plow head further comprises a soil dividing plate and an adjusting pull rod, the soil dividing plate is fixed on the upper side of the share head, an adjusting plate is arranged on the bottom side of the share head, the middle part of the adjusting plate is rotationally connected to the plow column, the rear end of the adjusting plate is rotationally connected to the adjusting pull rod, and the upper end of the adjusting pull rod is movably connected to the plow column.

[0012] Preferably, one side of the plow body main beam is rotationally connected to the lower side of the connecting part, the upper side of the connecting part is rotationally connected with a hydraulic oil cylinder, and the output end of the hydraulic oil cylinder is rotationally connected to the upper side of the plow body main beam.

[0013] Preferably, the connecting part comprises two fixed support plates and an intermediate fixed support plate, the fixed support plates and the intermediate fixed support plate are fixedly connected to an external main machine; the two ends of a slide rod and a large swing oil cylinder are connected to the two fixed support plates, and the middle part of the slide rod and the large swing oil cylinder is arranged on the intermediate fixed support plate.

[0014] Preferably, the connecting part further comprises a large swing sliding sleeve, the large swing sliding sleeve is slidably connected to the slide rod, and the plow body main beam and the hydraulic oil cylinder are rotationally connected to the large swing sliding sleeve; the large swing sliding sleeve comprises two large swing sliding seats, the output end of the large swing oil cylinder is connected to one large swing sliding seat, and the other large swing sliding seat is sleeved on the large swing oil cylinder, the two large swing sliding seats are connected through a connecting rod, and the large swing sliding seats are slidably arranged between the fixed support plates and the intermediate fixed support plate.

[0015] Preferably, it further comprises a roller, and the two ends of the roller are rotationally connected to the two ends of the plow body main beam through a traction frame.

[0016] Preferably, the connecting part comprises a fixed support plate, the fixed support plate is fixedly connected to an external main machine; a slide rod and a large swing oil cylinder are connected to the fixed support plate, a large swing sliding sleeve is connected to the output end of the large swing oil cylinder, the large swing sliding sleeve is slidably connected to the slide rod, and the plow body main beam and the hydraulic oil cylinder are rotationally connected to the large swing sliding sleeve.

[0017] Preferably, the large swing sliding sleeve comprises two large swing sliding seats connected by a connecting rod, the output end of the large swing oil cylinder is connected with one large swing sliding seat and the other large swing sliding seat is sleeved on the large swing oil cylinder.

[0018] Preferably, the connecting part further comprises an intermediate fixed support plate, the fixed support plate is fixed on both sides of the slide bar and the large swing oil cylinder, the intermediate fixed support plate is arranged at the middle part of the slide bar and the large swing oil cylinder, and the large swing sliding seat is slidingly arranged between the fixed support plate and the intermediate fixed support plate.

[0019] Preferably, the plow further comprises a press roller, both ends of the press roller are rotatably connected to both ends of the plow body main beam through a traction frame.

[0020] The above technical solution has the following technical effects:

[0021] 1. The plow body main beam drives the plow head to rise or fall by moving up and down relative to the connecting part to control the plowing depth. When deep plowing is needed, the plow body main beam is turned downward to make the plow head fall; when deep plowing is not needed, the plow body main beam is turned upward to make the plow head rise; thereby realizing the overall lifting adjustment of the plow head, keeping the plowing depth of the plow head consistent, achieving precise plowing depth control; further, the plow further comprises a wire displacement sensor, which can accurately control the lifting height of the plow body main beam, without the need for repeated stoppage for work, thereby improving work efficiency.

[0022] 2. A distance adjusting oil cylinder is arranged between the two adjacent plow body clamping seats, the extension and retraction of the distance adjusting oil cylinder drives the two adjacent plow body clamping seats to move left and right relative to each other, that is, the distance between the two adjacent plow heads is adjusted to complete the adjustment of the ridge distance.

[0023] 3. Compared with the plow head of the prior art in which the share plate and the share tip are integrated, the plow head of the present application adopts a split type design, when the share tip is worn out or deformed, only the share tip needs to be disassembled from the share plate for replacement or maintenance, without the need to replace the entire plow head, the overall structure is simple, stable and reliable, and the plow head is easy to replace and maintain, thereby prolonging the service life of the plow head and reducing the use cost.

[0024] 4. In the practice of ridge forming operation in dry land, the soil conditions are often poor, the soil is hard and there are large stones, etc. The plow head of the present application further comprises a soil separating plate and an adjusting pull rod, which can flexibly adjust the soil entering angle of the plow head, and is more suitable for complex operation conditions, and has good plowing effect; at the same time, the plow column is fixed between the plow head clamping seat and the safety bolt by the safety bolt, so that when the plow head encounters abnormal soil, the safety bolt breaks first, thereby playing a role in protecting the plow body.

[0025] 5. The present application can be combined with a rotary cultivator or a pulverizing and returning fertilizer device to form a dry land combined overall machine, which is complete in function and can effectively improve the operation efficiency and operation quality of the dry land combined land preparation machine. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a perspective view of the utility model;

[0027] Figure 2 is a plan view of the utility model;

[0028] Figure 3 is a perspective view of the utility model at the second angle (without plow head);

[0029] Figure 4 is a side view of the utility model (without compacting roller);

[0030] Figure 5 is a perspective view of the plow head.

[0031] In the figure, 1 is a connecting part; 11 is a fixed support plate; 12 is a slide bar; 13 is a large swing oil cylinder; 14 is an intermediate fixed support plate; 2 is a hydraulic oil cylinder; 3 is a plow body main beam; 31 is a connecting plate; 32 is a rotating plate; 33 is a traction rod; 34 is an ear seat; 35 is a connecting cross beam; 36 is a cross beam rotating shaft; 37 is a shaft pin; 38 is a cylindrical pin shaft; 4 is a plow body clamping seat; 41 is a square tube; 42 is a positioning plate; 43 is a positioning gap; 44 is a first mounting hole; 45 is a second mounting hole; 46 is a hinged seat; 47 is a connecting shaft; 48 is a shaft pin; 5 is a plow head; 51 is a plow column; 52 is a soil dividing plate; 53 is an adjusting pull rod; 55 is a bolt; 56 is a safety bolt; 57 is a nut; 6 is a share head; 61 is a share tip; 2 is a share plate; 63 is an adjusting plate; 7 is a large swing slide sleeve; 71 is a large swing slide seat; 72 is a connecting rod; 8 is a compacting roller; 81 is a traction frame; 9 is a distance adjusting oil cylinder. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model.

[0033] As Figures 1 to 5As shown, a hydraulic amplitude modulation deep plowing ridge plow includes a connecting part 1 connected with an external host, a plow body main beam 3, a plow body clamping seat 4 and a plow head 5, the plow body main beam is movably connected on the connecting part, the plow head 5 is fixed on the plow body main beam 3 through the plow body clamping seat 5, the plow body main beam 3 drives the plow head 5 to move up and down relative to the connecting part, thereby controlling the plowing depth. Further, a connecting cross beam 35 is welded and fixed on one side of the plow body main beam 3 close to the connecting part 1, the connecting cross beam 35 is rotatably connected on the lower side of the connecting part 1 through a cross beam rotating shaft 36, a hydraulic oil cylinder 2 is rotatably connected on the upper side of the connecting part 1, the output end of the hydraulic oil cylinder 2 is rotatably connected on the upper side of the plow body main beam, an ear seat 34 is welded and fixed on the upper surface of the plow body main beam 3, the output end of the hydraulic oil cylinder 2 is provided with a shaft sleeve, the shaft sleeve is rotatably connected on the ear seat 34 through a bearing or a bolt. The plow body main beam 3 is controlled to rotate around the cross beam rotating shaft 36 through the extension and contraction of the hydraulic oil cylinder 2, and then the plow body main beam 3 drives the plow head 5 to rise or fall to control the plowing depth. Further, a pull wire displacement sensor is also provided, which can accurately control the lifting height of the plow body main beam, without the need for repeated stoppage operation, thereby improving the operation efficiency. When deep plowing operation is needed, the extension rod of the hydraulic oil cylinder 2 is extended, the plow body main beam 3 is rotated downward to make the plow head 5 fall; when deep plowing operation is not needed, the working end of the hydraulic oil cylinder 2 is retracted, driving the plow body main beam 3 to rotate upward to make the plow head 5 lift; thereby realizing the overall lifting adjustment of the plow head 5, keeping the plowing depth of the plow head consistent, and realizing accurate plowing depth.

[0034] A plurality of groups of connecting plates 31 are rotatably connected on the plow body main beam 3 through shaft pins 37, the plow body clamping seat 4 is rotatably connected on the connecting plate 31 through a shaft pin 48, and the plow head 5 is fixedly connected on the plow body clamping seat 4 through a stand column 51; a distance adjusting oil cylinder 9 is arranged between two adjacent plow body clamping seats 4, a hinged seat 46 and a connecting shaft 47 are arranged on the plow body clamping seat 4, the fixed end of the distance adjusting oil cylinder 9 is hingedly connected on the hinged seat 46 of the adjacent plow body clamping seat 4, and the extension rod of the distance adjusting oil cylinder 9 is rotatably connected on the connecting shaft 47 of the other adjacent plow body clamping seat 4. The extension and contraction of the distance adjusting oil cylinder 9 drives the two adjacent plow body clamping seats 4 to move left and right, i.e. adjusts the distance between the two adjacent plow heads 5 to complete the adjustment of the ridge distance.

[0035] In the above embodiment, the middle part of the plow body main beam 3 is rotatably provided with a rotating plate 32 through a cylindrical pin shaft 38, the two ends of the rotating plate 32 are rotatably connected with traction rods 33, the other ends of the traction rods 33 are rotatably connected with the adjacent plow body clamping seats 4, so that the connection relationship between the plow body main beam 3 and the plow body clamping seat 4 is enhanced through the cylindrical pin shaft 38, the rotating plate 32 and the traction rod 33, avoiding the left and right shaking of the plow head 5 driven by the plow body clamping seat 4 during operation.

[0036] In a preferred embodiment, the plow body seat 4 comprises a connecting square tube 41, two positioning plates 42 are welded and fixed on the connecting square tube 41, a positioning gap 43 is formed between the two positioning plates 42, and a first mounting hole 44 is arranged on the positioning plate 42. A through hole is arranged on the plow column 51, and a plurality of through holes can be arranged longitudinally. The plow column 51 is mounted and fixed in the positioning gap 43 by a bolt 55 passing through the first mounting hole 44 and the through hole, and the positioning plate 42 prevents the plow column 51 from bending or shaking left and right. Further, a second mounting hole 45 is arranged on the positioning plate 42 in the oblique downward direction of the first mounting hole 44, and a safety bolt 56 is arranged between the square tube 41 and the safety bolt 56 by passing through the second mounting hole 45. Thus, during operation, the safety bolt 56 can prevent the plow column 51 from shaking forward and backward, and at the same time, when a hard obstacle is encountered, the safety bolt 56 can be broken in time to protect the plow head 5 from being damaged. Furthermore, the first mounting hole 44 and the second mounting hole 45 are arranged in a staggered manner, so that when adjusting the position of the plow column 51, only the bolt 55 needs to be mounted on the hole, which facilitates the installation, disassembly and adjustment of the plow column 51.

[0037] In a preferred embodiment, the plow head 5 comprises a share head 6 arranged on the lower side of the plow column 51. The share head 6 is provided with a share plate 62 and a share tip 61, and the share tip 61 is detachably connected to the front end of the share plate 62. In this embodiment, the share tip 61 is bolted and fixed to the front end of the share plate 62, and the share head 6 is made of wear-resistant high-strength steel plate. As the main tool for plowing and turning over the soil, the share tip 61 is the main consumable. When the share tip 61 is worn out or deformed, only the share tip 61 needs to be detached from the share plate 62 for replacement or repair, without the need to replace the entire plow head 6. Compared with the plow head of the prior art, which is integrated with the share plate 62 and the share tip 61, the split-type share head design of the present application facilitates replacement and repair, prolongs the service life of the plow head, and reduces the use cost.

[0038] In a preferred embodiment, the plow head 5 further comprises a soil dividing plate 52 and an adjusting pull rod 53. The soil dividing plate 52 is welded or screwed and fixed on the upper side of the share head 6, and an adjusting plate 63 is arranged on the bottom side of the share head 6. The adjusting plate 63 is rotatably connected to the plow column 51 at the middle part, and the rear end of the adjusting plate 63 is rotatably connected to the adjusting pull rod 53. A nut 57 is arranged on the plow column 51, and the adjusting pull rod 53 is provided with external threads. The adjusting pull rod 53 is movably connected to the plow column 51 through the nut 57, and the relative position of the adjusting pull rod 53 and the plow column 51 realizes the adjustment of the soil entering angle of the share head 6. Specifically, rotating the nut 57 drives the adjusting pull rod 31 to drive the adjusting plate 63 to move upward, so that the side connected to the share head 6 of the adjusting plate 63 moves downward. At this time, the larger the soil entering angle of the share tip 61, the deeper the plowing depth. Rotating the nut 57 drives the adjusting pull rod 31 to drive the adjusting plate 63 to move downward, so that the side connected to the share head 6 of the adjusting plate 63 moves upward. At this time, the smaller the soil entering angle of the share tip 61, the shallower the plowing depth, which further ensures the accuracy of the plowing depth.

[0039] In a preferred embodiment, a press wheel 8 is further included, both ends of the press wheel 8 are rotatably connected to both ends of the plow body main beam 3 through a traction frame 81, and the press wheel 8 will float up when encountering a rootstock during operation, so as to better complete the pressing effect.

[0040] In a preferred embodiment, the connecting part 1 includes a fixed support plate 11, two slide bars 12 and a large swing oil cylinder 13 are fixedly connected on the fixed support plate 11, and the large swing oil cylinder 13 is arranged between the two slide bars 12; an output end of the large swing oil cylinder 13 is fixedly connected with a large swing sliding sleeve 7, the large swing sliding sleeve 7 is slidably connected to the slide bar 12, and the plow body main beam 3 and the hydraulic oil cylinder 2 are rotatably connected to the large swing sliding sleeve 7. The left and right movement of the plow body main beam 3 is completed through the extension and retraction of the large swing oil cylinder 13, which drives the plow head 5 and the press wheel 8 installed on the plow body main beam 3 to move left and right to complete the original ridge operation or the stubble breaking operation and the pressing operation.

[0041] The large swing sliding sleeve 7 includes two large swing sliding seats 71 and a connecting rod 72, both ends of the connecting rod 72 are welded and fixed to the large swing sliding seat 71, so as to ensure the consistency of the movement of the large swing sliding seat 71. The output end of the large swing oil cylinder 13 is connected to one large swing sliding seat 71, and the other large swing sliding seat 71 is sleeved on the cylinder body of the large swing oil cylinder 13.

[0042] The connecting part 1 further includes an intermediate fixed support plate 14, the fixed support plate 11 is fixed on both sides of the slide bar 12 and the large swing oil cylinder 13, and the intermediate fixed support plate 14 is arranged at the middle part of the slide bar 12 and the large swing oil cylinder 13, so as to form a three-point fixed support for the slide bar 12 and the large swing oil cylinder 13, and to strengthen the support effect of the slide bar 12. The large swing sliding seat 71 is slidably arranged between the fixed support plate 11 and the intermediate fixed support plate 14.

[0043] In a preferred embodiment, a plurality of bolt connection holes are arranged on the lower part of the fixed support plate 11, and the fixed support plate 11 is fixedly connected to an external main machine through fixed bolts, or the fixed support plate 11 is fixed to the external main machine through welding. The external main machine is a rotary tiller or a pulverizing and returning machine. Further, a fertilizing device can be installed on the structure of the present application to form a dry field combined whole machine, so as to simultaneously realize the one-time combined operation of stubble removal, rotary tillage, fertilization, ridge forming and pressing.

[0044] In use, the rear side of the rotary cultivator or the stubble pulverizer is connected through the bolt hole at the lower end of the fixed support plate 11, and the large swing oil cylinder, the hydraulic oil cylinder and the distance adjustment oil cylinder are connected with the multi-way valve of the main machine through the hydraulic pipeline. The large swing oil cylinder drives the large swing sliding sleeve 7 to slide left and right, so that the plow body main beam 3 and the plow head 5 slide left and right, so that the original ridge operation or the half breaking operation can be realized; when the plowing depth needs to be adjusted, the extension rod of the hydraulic oil cylinder moves to drive the plow body main beam 3 to rotate, so that the plow head 5 rotates downward or upward to realize the accurate control of the plowing depth, further, the plow tip earth penetration angle can be more accurately controlled through the adjustment of the pull rod, and further, when the spade tip 61 is worn, the bolt can be disassembled and only the spade tip is replaced, so that the operation is simple and convenient; when the ridge width or the ridge distance needs to be adjusted, the extension rod of the distance adjustment oil cylinder 9 moves to drive the plow body clamping seat to move relatively to adjust the distance between the plow heads, so that the adjustment of the ridge distance is realized.

[0045] The embodiment is only a description of the concept and implementation of the utility model, and does not limit the utility model. Under the concept of the utility model, the technical solutions and the embodiments without substantial transformation belong to the protection scope of the utility model.

Claims

1. A hydraulic depth control subsoiler with ridging, characterized in that, The utility model provides a plough body, including the connecting portion who connects with the host computer of outside, the plough body main beam is swingedly connected on the connecting portion, the plough body main beam can move up and down relative to the connecting portion, a plurality of groups of connecting plates are rotatably connected on the plough body main beam, each group of connecting plates rotatably connects the plough body card seat, the plough head is installed on the plough body card seat through plough column, the distance adjusting oil cylinder is arranged between two adjacent plough body card seats, one end of the distance adjusting oil cylinder is rotatably connected on one adjacent plough body card seat, and the other end of the distance adjusting oil cylinder is rotatably connected on the other adjacent plough body card seat.

2. The hydraulic depth control subsoiler of claim 1, wherein, The middle part of the plough body main beam is rotatably provided with a rotating plate, the two ends of the rotating plate are rotatably connected with traction rods, and the other ends of the traction rods are rotatably connected with adjacent plough body card seats.

3. The hydraulic depth control subsoiler of claim 1, wherein, The plough body card seat comprises a connecting square tube, two positioning plates are arranged on the connecting square tube, a positioning gap is formed between the two positioning plates, a first mounting hole is arranged on the positioning plate, a through hole is arranged on the plough column, and the plough column is mounted and fixed in the positioning gap after a bolt passes through the first mounting hole and the through hole.

4. The hydraulic depth control subsoiler of claim 3, wherein, A second mounting hole is further arranged on the positioning plate, and the plough column is fixed between the square tube and the safety bolt after a safety bolt passes through the second mounting hole.

5. The hydraulic depth control subsoiler of any one of claims 1 to 4, wherein, The plough head comprises a share, the share is provided with a share plate and a share tip, the share tip is detachably connected to the front end of the share plate, and the share is arranged on the lower side of the plough column.

6. The hydraulic depth control subsoiler of claim 5, wherein, The plough head further comprises a soil separating plate and an adjusting pull rod, the soil separating plate is fixed to the upper side of the share, an adjusting plate is arranged on the bottom side of the share, the middle part of the adjusting plate is rotatably connected to the plough column, the rear end of the adjusting plate is rotatably connected to the adjusting pull rod, and the upper end of the adjusting pull rod is movably connected to the plough column.

7. The hydraulic depth control subsoiler of claim 1 or 6, wherein, One side of the plough body main beam is rotatably connected to the lower side of the connecting portion, the upper side of the connecting portion is rotatably connected with a hydraulic oil cylinder, and the output end of the hydraulic oil cylinder is rotatably connected to the upper side of the plough body main beam.

8. The hydraulic depth control subsoiler of claim 7, wherein, The connecting portion comprises two fixed support plates and an intermediate fixed support plate, the fixed support plates and the intermediate fixed support plate are fixedly connected to the host computer of outside, a slide bar and two ends of a large swing oil cylinder are connected to the two fixed support plates, and the middle part of the intermediate fixed support plate is provided with the slide bar and the middle part of the large swing oil cylinder.

9. The hydraulic depth control subsoiler of claim 8, wherein, The connecting portion further comprises a large swing sliding sleeve, the large swing sliding sleeve is slidably connected to the slide bar, the plough body main beam and the hydraulic oil cylinder are rotatably connected to the large swing sliding sleeve, the large swing sliding sleeve comprises two large swing sliding seats, the output end of the large swing oil cylinder is connected to one large swing sliding seat, and the other large swing sliding seat is sleeved on the large swing oil cylinder, the two large swing sliding seats are connected through a connecting rod, and the large swing sliding seats are slidably arranged between the fixed support plates and the intermediate fixed support plate.

10. The hydraulic depth control subsoiler of claim 1 or 9, wherein, The utility model further comprises a roller, the two ends of the roller are rotatably connected to the two ends of the plough body main beam through a traction frame.

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