Rotary tillage depth adjusting mechanism

Abstract

The invention relates to the technical field of agricultural machinery, and discloses a rotary tillage depth adjusting mechanism which comprises a rotary tillage assembly and a rack, a rotary tillage mechanism is arranged below the rack, a supporting frame is fixed to one side of the rack, and a resistance rod is inserted into the supporting frame; the adjusting assembly is arranged on the supporting frame and comprises an adjusting piece, and the adjusting piece comprises a connecting frame located on the outer side of the resistance rod. The rotary tillage machine has the beneficial effects that through the arrangement of the adjusting assembly, after the rotary tillage machine is moved to an uneven terrain, the height of the resistance rod can be automatically adjusted without shutdown, the rotary tillage depth can be automatically adjusted, so that the rotary tillage efficiency can be improved, the rotary tillage operation has continuity, the situation of missing tillage is avoided, and during adjustment, the rotary tillage machine is convenient to use. And the height of the resistance rod can be adaptively adjusted according to the convex and concave degrees of the terrain, so that the rotary tillage depth can be accurately adjusted, and the condition that the emergence rate is influenced by the deviation of the rotary tillage depth is avoided.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a rotary tillage depth adjustment mechanism. Background Technology

[0002] A rotary tiller is an agricultural tillage machine, usually towed or suspended by a tractor. It uses rotating blades (rotary tillers) to cut, break, mix, and level the soil for farmland preparation, creating suitable soil conditions for subsequent agricultural activities such as sowing and transplanting. During use, the tillage depth needs to be adjusted according to the terrain. In traditional rotary tiller operation, when encountering local terrain changes requiring depth adjustment, the machine must be stopped, and the resistance bar height must be manually adjusted. Each depth adjustment interrupts the tillage process, and frequent starts and stops significantly reduce the tilled area per unit time. Furthermore, when adjusting, the rotary blades stop rotating, potentially causing "missed tillage" in adjacent tilled areas. Adjustment also relies on the operator's visual observation or experience to judge terrain changes and manually set the resistance bar height. This manual judgment depends on subjective experience, and different operators have different perceptions of "terrain protrusions / concave areas," leading to deviations in tillage depth and affecting crop emergence rates. Summary of the Invention

[0003] In view of the problems existing in the above and / or existing rotary tillage depth adjustment mechanisms, the present invention is proposed.

[0004] Therefore, the problem that this invention aims to solve is that when adjusting the rotation depth, it is necessary to stop the machine, which reduces the rotary tillage efficiency and makes it impossible to accurately adjust the rotary tillage depth.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a rotary tillage depth adjustment mechanism, comprising a rotary tillage component, including a frame, a rotary tillage mechanism disposed below the frame, a support frame fixed on one side of the frame, and a resistance rod inserted into the support frame;

[0006] An adjustment assembly, mounted on the support frame, includes an adjustment component. The adjustment component includes a connecting frame located outside the resistance rod. A rotating column is rotatably connected to the top of the support frame. A spiral groove is formed on the rotating column. A fixed shaft is fixed inside the connecting frame and slides within the spiral groove. A positioning frame is fixed to the top of the support frame. The rotating column is rotatably connected to the positioning frame via a bearing. Insertion holes are formed on both the resistance rod and the connecting frame, and pins are inserted into the insertion holes.

[0007] As a preferred embodiment of the rotary tillage depth adjustment mechanism of the present invention, the adjustment component further includes a transmission component, the transmission component includes a gear rotatably connected to the outside of the rotating column, a toothed plate is provided on one side of the gear, a stabilizing rod is fixed on the positioning frame, and the toothed plate is movably connected to the outside of the stabilizing rod.

[0008] As a preferred embodiment of the rotary tillage depth adjustment mechanism of the present invention, the adjustment component further includes a trigger, the trigger includes a rotating rod located below the frame, the end of the rotating rod is provided with a rotating wheel, and a stabilizing column is fixed on the rotating rod.

[0009] As a preferred embodiment of the rotary tillage depth adjustment mechanism of the present invention, a swing rod is fixed on the stabilizing column, a connecting rod is fixed on one side of the toothed plate, a positioning shaft is fixed on one side of the connecting rod, a sliding groove is provided on the swing rod, and the positioning shaft is movably connected to the sliding groove.

[0010] As a preferred embodiment of the rotary tillage depth adjustment mechanism of the present invention, the adjustment component further includes a limiting member, the limiting member including a stabilizing frame fixed to the top of the positioning frame, a limiting rod provided in the stabilizing frame, a limiting hole opened on the rotating column, the limiting rod engaging with the limiting hole, a first spring fixed to the end of the limiting rod, and the other end of the first spring fixed to the inner wall of the stabilizing frame.

[0011] As a preferred embodiment of the rotary tillage depth adjustment mechanism of the present invention, the adjustment component further includes a pusher, the pusher including a fixed rod fixed to one end of the limiting rod, a force-bearing column fixed to the top of the fixed rod, and a pressing rod fixed to the bottom of the toothed plate.

[0012] As a preferred embodiment of the rotary tillage depth adjustment mechanism of the present invention, there are two extrusion rods, which are respectively fixed on both sides of the bottom of the toothed plate, and the end of the extrusion rod near the force-bearing column is inclined.

[0013] As a preferred embodiment of the rotary tillage depth adjustment mechanism of the present invention, the adjustment component further includes a connector, the connector including a fixing frame fixed to the top of the gear, a locking block provided in the fixing frame, a locking groove provided on the rotating column, the locking block engaging with the locking groove, and a second spring fixed on one side of the locking block.

[0014] As a preferred embodiment of the rotary tillage depth adjustment mechanism of the present invention, the two sides of the end of the card block are inclined, and there are multiple card slots that are evenly distributed in a ring on the outside of the rotating column.

[0015] In a preferred embodiment of the rotary tillage depth adjustment mechanism of the present invention, a drive mechanism is provided on the top of the frame, and the drive mechanism is connected to the rotary tillage mechanism through a transmission component.

[0016] The beneficial effects of this invention are as follows: By adjusting the settings of the components, when moving to uneven terrain, the height of the resistance bar can be automatically adjusted without stopping the machine, which can automatically adjust the rotary tillage depth, thereby improving the rotary tillage efficiency, making the rotary tillage operation continuous, and preventing missed tillage. Moreover, during adjustment, the height of the resistance bar will be adaptively adjusted according to the degree of protrusion and depression of the terrain, so as to accurately adjust the rotary tillage depth and prevent the seedling emergence rate from being affected by the deviation of the rotary tillage depth. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0018] Figure 1 This is a structural diagram of the rotary tillage depth adjustment mechanism.

[0019] Figure 2 This is a structural diagram of the adjusting and transmission components of the rotary tillage depth adjustment mechanism.

[0020] Figure 3 This is a partial cross-sectional view of the connecting frame of the rotary tillage depth adjustment mechanism.

[0021] Figure 4 This is a cross-sectional view of the upper end of the rotating column of the rotary tillage depth adjustment mechanism.

[0022] Figure 5 This is a top-view cross-sectional view of the rotating column of the rotary tillage depth adjustment mechanism.

[0023] Figure 6 This is a cross-sectional diagram of the toothed plate structure of the rotary tillage depth adjustment mechanism.

[0024] Figure 7 This is a structural diagram of the trigger element of the rotary tillage depth adjustment mechanism.

[0025] In the diagram: 100, Rotary tillage assembly; 101, Frame; 102, Rotary tillage mechanism; 103, Support frame; 104, Resistance rod; 105, Drive mechanism; 200, Adjustment assembly; 201, Adjusting component; 2011, Connecting frame; 2012, Rotating column; 2012-1, Spiral groove; 2013, Fixed shaft; 2014, Positioning frame; 104-1, Insertion hole; 2015, Pin; 202, Transmission component; 2021, Gear; 2022, Gear plate; 2023, Stabilizer bar; 203, Trigger; 2031, Rotating rod. ; 2032, Rotating wheel; 2033, Stabilizing column; 2034, Swing rod; 2035, Connecting rod; 2036, Positioning shaft; 2034-1, Slide groove; 204, Limiting component; 2041, Stabilizing frame; 2042, Limiting rod; 2012-2, Limiting hole; 2043, First spring; 205, Pushing component; 2051, Fixing rod; 2052, Force-bearing column; 2053, Pressing rod; 206, Connecting component; 2061, Fixing frame; 2062, Locking block; 2012-3, Locking groove; 2063, Second spring. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figures 1-3This is the first embodiment of the present invention, which provides a rotary tillage depth adjustment mechanism. The rotary tillage depth adjustment mechanism includes a rotary tillage assembly 100, including a frame 101. A rotary tillage mechanism 102 is arranged below the frame 101. The rotary tillage mechanism 102 consists of a rotating shaft and rotary tillage blades. When the rotary tillage mechanism 102 rotates, it can tillage the land. A support frame 103 is fixed on one side of the frame 101. A resistance rod 104 is inserted into the support frame 103. The support frame 103 is used to support and position the resistance rod 104. The rotary tillage depth of the rotary tillage mechanism 102 is limited by the resistance rod 104. When it is necessary to adjust the rotary tillage depth, the resistance rod 104 is moved upward to increase the rotary tillage depth, and moved downward to decrease the rotary tillage depth. This is prior art, and this solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle.

[0031] Drive wheels are provided on both sides of the bottom of the frame 101 to drive the frame 101 forward. The width of the distance between the two drive wheels is greater than the width of the rotary tillage mechanism 102. During operation, the drive wheels will move inside the furrows on both sides of the ridge, while the rotary tillage mechanism 102 will move on the furrows for rotary tillage. Therefore, if the height of the ridge changes, the height of the furrow will not be affected, and thus the height of the frame 101 will not be affected. Only the rotary tillage mechanism 102, which is rotary tilling at the top of the ridge, will be affected.

[0032] An adjustment assembly 200 is mounted on a support frame 103 and includes an adjustment component 201. The adjustment component 201 includes a connecting frame 2011 located outside the resistance rod 104. The resistance rod 104 is movably connected to the connecting frame 2011. A rotating column 2012 is rotatably connected to the top of the support frame 103 via a bearing. A spiral groove 2012-1 is provided on the rotating column 2012. A fixed shaft 2013 is fixed inside the connecting frame 2011 and slides within the spiral groove 2012-1.

[0033] When the rotating column 2012 rotates, it drives the connecting frame 2011 to move up and down through the cooperation of the fixed shaft 2013 and the spiral groove 2012-1. The connecting frame 2011 then drives the resistance rod 104 to move up and down, thereby adjusting the rotary tillage depth without stopping the machine. This improves rotary tillage efficiency and ensures continuous rotary tillage operations, preventing missed tillage.

[0034] The pitch of the spiral groove 2012-1 is small. Only when the rotating column 2012 rotates actively will the fixed shaft 2013 move within the spiral groove 2012-1. The cooperation between the spiral groove 2012-1 and the fixed shaft 2013 can limit the position of the connecting frame 2011, which can prevent the connecting frame 2011 from moving upward due to the reverse thrust of the resistance rod 104 on the ground.

[0035] A positioning frame 2014 is fixed to the top of the support frame 103. The rotating column 2012 is rotatably connected to the positioning frame 2014 through a bearing. The positioning frame 2014 is L-shaped and is used to support and position the rotating column 2012. Both the resistance rod 104 and the connecting frame 2011 have insertion holes 104-1. There are multiple insertion holes 104-1 on the resistance rod 104, which are evenly distributed in a straight line on the resistance rod 104. There is only one insertion hole 104-1 on the connecting frame 2011. A pin 2015 is inserted into the insertion hole 104-1. The resistance rod 104 is connected to the connecting frame 2011 through the cooperation of the pin 2015 and the insertion hole 104-1. This allows the connecting frame 2011 to move the resistance rod 104 up and down when it moves up and down. The initial height of the resistance rod 104 can be adjusted during initial operation.

[0036] Example 2

[0037] Reference Figure 2 , Figure 4 and Figure 7 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0038] Specifically, the adjustment assembly 200 also includes a transmission component 202, which includes a gear 2021 rotatably connected to the outside of the rotating column 2012. The gear 2021 is rotatably connected to the outside of the rotating column 2012 via a bearing. A toothed plate 2022 is provided on one side of the gear 2021, and the gear 2021 meshes with the toothed plate 2022. A stabilizing rod 2023 is fixed on the positioning frame 2014. The stabilizing rod 2023 is U-shaped and is used to support and position the toothed plate 2022 to prevent the toothed plate 2022 from shifting when it moves. The toothed plate 2022 is movably connected to the outside of the stabilizing rod 2023.

[0039] Specifically, the adjustment assembly 200 also includes a trigger 203, which includes a rotating rod 2031 located below the frame 101. A rotating wheel 2032 is provided at the end of the rotating rod 2031. The rotating wheel 2032 is rotatably connected to the bottom end of the rotating rod 2031 through a rotating shaft. The rotating wheel 2032 and the rotating rod 2031 have a certain weight. The rotating rod 2031 is inclined and located in the forward direction of the frame 101. A stabilizing column 2033 is fixed on the rotating rod 2031. The stabilizing column 2033 is rotatably connected to the frame 101 through a bearing.

[0040] Specifically, a swing rod 2034 is fixed on the stabilizing column 2033, a connecting rod 2035 is fixed on one side of the toothed plate 2022, the connecting rod 2035 is L-shaped, a positioning frame is fixed on the drive mechanism 105 and the transmission component, the connecting rod 2035 is movably connected to the positioning frame, a positioning shaft 2036 is fixed on one side of the connecting rod 2035, a sliding groove 2034-1 is opened on the swing rod 2034, the positioning shaft 2036 is movably connected to the sliding groove 2034-1, and the swing rod 2034 is connected to the connecting rod 2035 through the cooperation of the positioning shaft 2036 and the sliding groove 2034-1.

[0041] When the frame 101 moves, the rotating wheel 2032 moves in front of the frame 101. When the terrain in front protrudes, the rotating wheel 2032 and the rotating rod 2031 will lift upward. At this time, the stabilizing column 2033 will drive the swing rod 2034 to rotate backward, and through the positioning shaft 2036 and the slide groove 2034-1, it will drive the connecting rod 2035 and the toothed plate 2022 to move. The toothed plate 2022 will drive the gear 2021 and the rotating column 2012 to rotate. At this time, the resistance rod 104 can move upward, thereby increasing the rotary tillage depth when the terrain protrudes, thus ensuring thorough tillage.

[0042] When the terrain in front is concave, the rotating wheel 2032 and the rotating rod 2031 will move downward by their own weight. At this time, the stabilizing column 2033 will drive the swing rod 2034 to rotate forward, and drive the connecting rod 2035 and the toothed plate 2022 to move forward, so that the toothed plate 2022 drives the gear 2021 and the rotating column 2012 to rotate. At this time, the resistance rod 104 will move downward and reduce the tillage depth to avoid the blades from getting stuck in the soil due to excessive tillage depth.

[0043] Specifically, the adjustment component 200 also includes a limiting component 204, which includes a stabilizing frame 2041 fixed to the top of the positioning frame 2014. A limiting rod 2042 is provided inside the stabilizing frame 2041, and a limiting hole 2012-2 is provided on the rotating column 2012. The limiting rod 2042 engages with the limiting hole 2012-2. Through the cooperation of the two, the rotating column 2012 can be limited, so as to prevent the rotating column 2012 from rotating due to external forces such as vibration during normal depth rotary tillage operations, which would cause the height of the resistance rod 104 to change.

[0044] A first spring 2043 is fixed to the end of the limiting rod 2042. The other end of the first spring 2043 is fixed to the inner wall of the stabilizing frame 2041. The first spring 2043 is used to apply a pushing force to the limiting rod 2042, so that the limiting rod 2042 and the limiting hole 2012-2 are engaged more securely.

[0045] Example 3

[0046] Reference Figures 5-7This is the third embodiment of the present invention, which is based on the first two embodiments.

[0047] Specifically, the adjustment assembly 200 also includes a pusher 205, which includes a fixed rod 2051 fixed to one end of the limiting rod 2042. One end of the fixed rod 2051 extends through to the outside of the stabilizing frame 2041 and is movably connected to the stabilizing frame 2041. A force-bearing column 2052 is fixed to the top of the fixed rod 2051, and a pressing rod 2053 is fixed to the bottom of the toothed plate 2022.

[0048] Specifically, there are two extrusion rods 2053, which are fixed on both sides of the bottom of the toothed plate 2022 respectively, and the end of the extrusion rod 2053 near the force-bearing column 2052 is inclined.

[0049] When the toothed plate 2022 moves, it will cause the inclined surface of the end of the pressing rod 2053 to press against the force-bearing column 2052, and push the force-bearing column 2052 and the fixed rod 2051 to move. This causes the fixed rod 2051 to separate the limiting rod 2042 from the limiting hole 2012-2, thereby releasing the restriction on the rotating column 2012, allowing the rotating column 2012 to rotate, and enabling the height adjustment of the resistance rod 104.

[0050] Specifically, the adjustment component 200 also includes a connector 206, which includes a fixing frame 2061 fixed to the top of the gear 2021. A locking block 2062 is provided inside the fixing frame 2061. A slot 2012-3 is provided on the rotating column 2012. The locking block 2062 engages with the slot 2012-3. A second spring 2063 is fixed on one side of the locking block 2062.

[0051] Specifically, both sides of the end of the card block 2062 are inclined, and there are multiple card slots 2012-3, which are evenly distributed in a ring on the outside of the rotating column 2012.

[0052] The gear 2021 is connected to the rotating column 2012 by the cooperation of the locking block 2062 and the locking slot 2012-3. When the rotating column 2012 is not unlocked, the rotation of the gear 2021 will cause the locking block 2062 and the locking slot 2012-3 to separate briefly, so that the rotating column 2012 will not be locked and jammed.

[0053] When the rotating column 2012 is unlocked, the gear 2021 can rotate through the locking block 2062 and the locking groove 2012-3 to drive the rotating column 2012 to rotate, thereby adjusting the height of the resistance rod 104.

[0054] Specifically, a drive mechanism 105 is provided on the top of the frame 101. The drive mechanism 105 is a power transmission component, usually the engine of a tractor. The drive mechanism 105 is connected to the rotary tillage mechanism 102 through a transmission component. This is prior art, and this solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle.

[0055] When the frame 101 moves, the rotating wheel 2032 moves in front of the frame 101. When the terrain in front protrudes, the rotating wheel 2032 and the rotating rod 2031 will lift upward. At this time, the stabilizing column 2033 will drive the swing rod 2034 to rotate backward, and drive the connecting rod 2035 and the toothed plate 2022 to move through the positioning shaft 2036 and the slide groove 2034-1. When the toothed plate 2022 moves, it will drive the inclined surface of the end of the pressing rod 2053 to press the force column 2052, and push the force column 2052 and the fixed rod 2051 to move, so that the fixed rod 2051 drives the limiting rod 2042 to separate from the limiting hole 2012-2, thereby releasing the restriction on the rotating column 2012.

[0056] At this time, the toothed plate 2022 will drive the gear 2021 and the rotating column 2012 to rotate. When the rotating column 2012 rotates, it will drive the connecting frame 2011 to move upward through the cooperation of the fixed shaft 2013 and the spiral groove 2012-1. The connecting frame 2011 will drive the resistance rod 104 to move upward, thereby increasing the rotary tillage depth when the terrain is raised, ensuring thorough tillage.

[0057] When the terrain ahead is concave, the rotating wheel 2032 and rotating rod 2031 will move downwards under their own weight. At this time, the stabilizing column 2033 will drive the swing rod 2034 to rotate forward, and drive the connecting rod 2035 and toothed plate 2022 to move forward, so that the toothed plate 2022 drives the gear 2021 and rotating column 2012 to rotate. At this time, the resistance rod 104 will move downwards and reduce the tillage depth, avoiding the situation where the blades are stuck in the soil due to excessive tillage depth. Thus, the tillage depth can be adjusted without stopping the machine when the terrain is uneven, thereby improving the tillage efficiency and making the tillage operation continuous, without missing any tillage. Moreover, during adjustment, the height of the resistance rod 104 can be adjusted adaptively according to the height of the terrain undulation, so as to accurately adjust the tillage depth and prevent the seedling emergence rate from being affected by the deviation of the tillage depth.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A rotary tillage depth adjustment mechanism characterized by: Including, The rotary tillage assembly (100) comprises a frame (101), a rotary tillage mechanism (102) arranged below the frame (101), and a support frame (103) fixed to one side of the frame (101), wherein a resistance rod (104) is inserted into the support frame (103); The adjusting assembly (200) is arranged on the support frame (103) and comprises an adjusting part (201), wherein the adjusting part (201) comprises a connecting frame (2011) arranged outside the resistance rod (104), a rotating column (2012) rotatably connected to the top of the support frame (103), a spiral groove (2012-1) formed in the rotating column (2012), a fixed shaft (2013) fixed in the connecting frame (2011), the fixed shaft (2013) sliding in the spiral groove (2012-1), a positioning frame (2014) fixed to the top of the support frame (103), and the rotating column (2012) rotatably connected to the positioning frame (2014) through a bearing, wherein an insertion hole (104-1) is formed in the resistance rod (104) and the connecting frame (2011), and a bolt (2015) is inserted into the insertion hole (104-1).

2. The rolling depth adjustment mechanism of claim 1, wherein: The adjusting assembly (200) further comprises a transmission part (202), wherein the transmission part (202) comprises a gear (2021) rotatably connected to the outside of the rotating column (2012), a toothed plate (2022) arranged on one side of the gear (2021), and a stabilizing rod (2023) fixed to the positioning frame (2014), and the toothed plate (2022) is movably connected to the outside of the stabilizing rod (2023).

3. The rolling depth adjustment mechanism of claim 2, wherein: The adjusting assembly (200) further comprises a triggering part (203), wherein the triggering part (203) comprises a rotating rod (2031) arranged below the frame (101), a rotating wheel (2032) arranged at the end of the rotating rod (2031), and a stabilizing column (2033) fixed to the rotating rod (2031).

4. The sweep depth adjustment mechanism of claim 3, wherein: A swinging rod (2034) is fixed to the stabilizing column (2033), a connecting rod (2035) is fixed to one side of the toothed plate (2022), a positioning shaft (2036) is fixed to one side of the connecting rod (2035), a sliding groove (2034-1) is formed in the swinging rod (2034), and the positioning shaft (2036) is movably connected to the sliding groove (2034-1).

5. A depth control mechanism as claimed in claim 3 or 4, wherein: The adjusting assembly (200) further comprises a limiting part (204), wherein the limiting part (204) comprises a stabilizing frame (2041) fixed to the top of the positioning frame (2014), a limiting rod (2042) arranged in the stabilizing frame (2041), a limiting hole (2012-2) formed in the rotating column (2012), the limiting rod (2042) engaged with the limiting hole (2012-2), a first spring (2043) fixed to the end of the limiting rod (2042), and the other end of the first spring (2043) fixed to the inner wall of the stabilizing frame (2041).

6. The sweep depth adjustment mechanism of claim 5, wherein: The adjusting assembly (200) further comprises a pushing piece (205), the pushing piece (205) comprises a fixed rod (2051) fixed to one end of the limiting rod (2042), a stress column (2052) is fixed to the top of the fixed rod (2051), and the bottom of the toothed plate (2022) is fixed with an extruding rod (2053).

7. The sweep depth adjustment mechanism of claim 6, wherein: The number of the extruding rods (2053) is two, which are fixed to the bottom of the toothed plate (2022) on both sides, and one end of the extruding rod (2053) close to the stress column (2052) is inclined.

8. A depth control mechanism as claimed in claim 6 or 7, wherein: The adjusting assembly (200) further comprises a connecting piece (206), the connecting piece (206) comprises a fixed frame (2061) fixed to the top of the gear (2021), a clamping block (2062) is arranged in the fixed frame (2061), a clamping groove (2012-3) is formed in the rotating column (2012), the clamping block (2062) is clamped with the clamping groove (2012-3), and a second spring (2063) is fixed to one side of the clamping block (2062).

9. The rolling depth adjustment mechanism of claim 8, wherein: The end of the clamping block (2062) is inclined on both sides, the number of the clamping grooves (2012-3) is multiple, and the clamping grooves (2012-3) are annularly and evenly distributed on the outside of the rotating column (2012).

10. The sweep depth adjustment mechanism of claim 9, wherein: The top of the rack (101) is provided with a driving mechanism (105), and the driving mechanism (105) is in transmission connection with the rotary tillage mechanism (102) through a transmission member.

Images