Graded vibration-limiting ridge pressing device

Abstract

The utility model belongs to the field of agricultural machinery, and particularly relates to a grading vibration limiting ridge pressing device which comprises a rack, a ridging assembly, a vibration ridge pressing assembly and a vibration limiting assembly, the rack is provided with a first driving part and a mounting frame, the ridging assembly is arranged on the rack and is in transmission with the first driving part, and the vibration ridge pressing assembly is arranged on the mounting frame; the vibration limiting assembly comprises a positioning rod, a cushioning spring and a limiting pin, the lower end of the positioning rod is hinged to the vibration ridge pressing assembly, the mounting frame is hinged to a limiting table, a sliding hole is formed in the limiting table, and the positioning rod is slidably inserted into the sliding hole. The cushioning spring is compressed to generate elastic force for pressing the vibration ridge pressing assembly, the upward vibration amplitude of the vibration ridge pressing assembly is reduced, the loosening degree of the ridge surface of the ridge is reduced along with the reduction of the upward vibration amplitude, the ridge surface becomes more compact, and finally the more compact ridge surface can be pressed out.

Description

Technical Field

[0001] The present application belongs to the field of agricultural machinery, and specifically relates to a graded vibration-limited ridge pressing device. Technical Background

[0002] Land ridging is a traditional agricultural practice that improves soil structure and promotes crop growth by forming mounds of soil (ridges) above the ground and furrows (furrows) between ridges.

[0003] Ridging before planting improves soil temperature and moisture management, increases surface area, and enhances photosynthetic efficiency. It also combats drought and flooding, inhibits weed growth, facilitates mechanized harvesting, and improves crop yield and quality. Ridging improves soil quality, light, ventilation, photosynthetic efficiency, and fertilizer and water utilization.

[0004] Common ridging machines generally use the weight of the ridging device to passively press out ridges in the soil. This ridging method has the problem that the structure of the ridges pressed out is unstable, and the ridge structure is easily destroyed when subsequent operations are performed on the ridges, thereby affecting the function of the ridges.

[0005] In the prior art, there is a utility model patent with application number 202223328383.4, entitled "A Ridge Forming and Compacting Device." The patent provides a device that can actively compact ridges, which to some extent solves the problem of unstable and easily damaged ridge structures in the prior art. However, the following problems still exist:

[0006] When ridge-forming operation is performed directly on loose soil, the compacting roller will vibrate up and down. When the compacting roller vibrates and lifts upward, the part of the ridge pressed out will be very loose. This part of the ridge is very easy to be damaged, or even so loose that it cannot be formed. Summary of the Invention

[0007] The purpose of this application is to address the existing technology in which the pressure roller vibrates up and down. When the pressure roller vibrates and lifts upward, the part of the ridge pressed out will be very loose. This part of the ridge is very easy to be damaged or even so loose that it cannot be formed.

[0008] To achieve the above objectives, this application provides the following technical solutions:

[0009] A graded vibration-limited ridge pressing device, comprising:

[0010] Frame, ridging assembly, vibrating ridging assembly and vibration limiting assembly, the frame is provided with a first driving member and a mounting frame, the ridging assembly and the vibrating ridging assembly are sequentially arranged on the rear side of the frame, the ridging assembly can be rotatably arranged on the frame and is transmission connected with the first driving member, the vibrating ridging assembly can be rotatably arranged on the mounting frame, the vibration limiting assembly includes a positioning rod, a shock-absorbing spring and a limit pin, the lower end of the positioning rod is hingedly connected to the vibrating ridging assembly, the mounting frame is hingedly connected to a limit platform, the limit platform is provided with a sliding hole, the positioning rod can be slidably inserted into the sliding hole, the shock-absorbing spring is sleeved on the positioning rod and is located between the limit platform and the vibrating ridging assembly, the upper end of the positioning rod is provided with a limiting hole, the limiting hole is located at the end of the limit platform away from the shock-absorbing spring, and there is a vibration gap with the limit platform, the limit pin is locked with the limiting hole, and the limit pin and the limit platform can be limitably matched.

[0011] Preferably, the vibrating ridge pressing assembly includes two swinging plates, a vibrating shaft, an eccentric block, a hollow roller and a second driving member, one end of the two swinging plates are respectively hinged to the two ends of the mounting frame, the two ends of the vibrating shaft are respectively rotatably set on the other end of the two swinging plates, the eccentric block is set on the vibrating shaft, the hollow roller is rotatably mounted on the vibrating shaft, and the second driving member is set on the swinging plate and is transmission-connected to the vibrating shaft.

[0012] Preferably, an anti-torsion bar is connected between the two swing plates, and the lower end of the positioning rod is hinged to the anti-torsion bar.

[0013] Preferably, the ridging assembly includes a rotating shaft and an intermediate ridging roller. The rotating shaft is rotatably arranged on the frame and is transmission-connected to the first driving member. The intermediate ridging roller is arranged on the rotating shaft and is aligned with the hollow roller.

[0014] Preferably, the ridging assembly further comprises two tapered rollers, the two tapered rollers are spaced apart at both ends of the middle ridging roller, and there is a furrow interval between the tapered roller and the end of the middle ridging roller.

[0015] Preferably, at least two ditching members are provided on the frame, and the two ditching members are arranged in alignment with the ridge gap.

[0016] Preferably, it also includes a rotary tillage assembly arranged on the frame, the rotary tillage assembly includes a transmission member and two rotary tillage blade groups transmission-connected to both ends of the transmission member, one end of the rotary tillage blade group is arranged on the transmission member, and the other end is rotatably arranged on the frame.

[0017] Preferably, the transmission member is provided with a protective shovel, and the protective shovel is vertically arranged and faces the moving direction of the frame.

[0018] Preferably, a scraper plate is further provided on the frame, and the scraper plate is located between the rotary tillage component and the ridging component.

[0019] The beneficial effect is: when the vibrating ridge pressing component is vibrated and lifted upward, the shock-absorbing spring is squeezed by the limit platform and the vibrating ridge pressing component, and the shock-absorbing spring is compressed. Therefore, when the vibrating ridge pressing component moves upward, the shock-absorbing spring is compressed to generate an elastic force that presses down the vibrating ridge pressing component. The elastic force reduces the amplitude of the upward vibration of the vibrating ridge pressing component and maintains it until the vibrating ridge pressing component vibrates downward again. In this process, the ridges pressed out are reduced by the elastic force because the elastic force reduces the amplitude of the upward vibration of the vibrating ridge pressing component. The looseness of the ridge surface decreases as the upward vibration amplitude decreases, and it becomes tighter, and finally a tighter ridge surface can be pressed out. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an axonometric diagram of the graded vibration-limited ridge pressing device described in this application;

[0021] Figure 2 This is a right side view of the graded vibration-limited ridge pressing device described in this application;

[0022] Figure 3 This is a front view of the graded vibration-limited ridge pressing device described in this application;

[0023] Figure 4 This is a left side view of the structure of the graded vibration-limited ridge pressing device described in this application;

[0024] Figure 5 A bottom view of the graded vibration-limited ridge pressing device described in this application;

[0025] Figure 6 A cross-sectional view of the vibrating ridge pressing assembly described in this application;

[0026] Figure 7 A three-dimensional diagram of the graded vibration-limited ridge pressing device described in this application;

[0027] Figure 8 A partial cross-sectional view of the vibration limiting assembly described in this application;

[0028] In the figure: frame 100, first driving member 110, mounting frame 120, limiting platform 121, furrowing member 130, scraper plate 150, ridging assembly 200, rotating shaft 210, intermediate ridging roller 220, tapered roller 230, vibrating ridge pressing assembly 300, swing plate 310, vibrating shaft 320, eccentric block 330, hollow roller 340, second driving member 350, anti-torsion bar 360, rotary tillage assembly 400, transmission member 410, rotary tillage blade group 420, protective shovel 430, vibration limiting assembly 500, positioning rod 510, limiting hole 511, shock-absorbing spring 520, limiting pin 530. DETAILED DESCRIPTION

[0029] It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of this application can be combined with each other. The following will further describe the technical solution of this application in conjunction with the drawings of the embodiments of this application, and this application is not limited to the following specific implementation methods.

[0030] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of this application, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom" and the like indicating an orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0031] Please refer to Figures 1 to 8 In a specific embodiment of the present application, there is a graded vibration-limited ridge pressing device, comprising

[0032] The frame 100, the ridging assembly 200, the vibrating ridge pressing assembly 300 and the vibration limiting assembly 500 are provided on the frame 100. The first driving member 110 and the mounting frame 120 are provided on the frame 100. The ridging assembly 200 and the vibrating ridge pressing assembly 300 are sequentially arranged on the rear side of the frame 100. The ridging assembly 200 is used to initially gather the soil into a loose ridge shape. The ridging assembly 200 can be any existing ridging tool. The vibrating ridge pressing assembly 300 further vibrates up and down to press the loose ridge shape into a compact ridge structure. The vibration limiting assembly 500 is used to limit the vibrating ridge pressing assembly 300 from being lifted up, thereby reducing the vibration of the vibrating ridge pressing assembly 300. 00 is lifted upward, and the force of the vibrating ridge pressing component 300 to press the ridge downward is increased accordingly. The ridge forming component 200 can be rotatably set on the frame 100 and is in transmission connection with the first driving member 110. The vibrating ridge pressing component 300 can be rotatably set on the mounting frame 120, that is, it can rotate around the hinge point of the mounting frame 120 when the vibrating ridge pressing component 300 vibrates, that is, it can swing up and down. The vibration limiting component 500 includes a positioning rod 510, a shock absorbing spring 520 and a limiting pin 530. The positioning rod 510 is used to insert into the sliding hole to limit the position of the shock absorbing spring 520. The shock absorbing spring 520 is in the The vibration ridge pressing component 300 is compressed when it swings upward, so that the vibration ridge pressing component 300 no longer moves upward. The limit pin 530 is used to prevent the positioning rod 510 from disengaging from the sliding hole when the vibration ridge pressing component 300 swings downward. The lower end of the positioning rod 510 is hinged to the vibration ridge pressing component 300, so that it can rotate and swing around the hinge point with the vibration. The mounting frame 120 is hinged to the limiting platform 121, and the limiting platform 121 is provided with a sliding hole. The positioning rod 510 can be slidably inserted into the sliding hole. The shock-absorbing spring 520 is sleeved on the positioning rod 510 and is located between the limiting platform 121 and the vibration ridge pressing component 300. A limiting hole 511 is provided at the upper end of the positioning rod 510, and the limiting hole 511 is located at the end of the limiting platform 121 away from the shock-absorbing spring 520, that is, the limiting hole 511 is higher than the limiting platform 121, and there is a vibration gap with the limiting platform 121, and the limiting pin 530 is locked with the limiting hole 511. After the limiting pin 530 is inserted into the limiting hole 511 higher than the limiting platform 121, and the limiting pin 530 can be limitedly matched with the limiting platform 121, the limiting platform 121 will adaptively rotate around the hinge point as the vibration pressing ridge component 300 drives the vibration limiting component 500 to deform.

[0033] In a specific implementation process, the field land is first plowed into loose soil, the frame 100 is hung on the tractor and driven by the tractor to move in the field, the first driving member 110 is connected to the power output end of the tractor, and then the power is transmitted to the ridging component 200, so that the ridging component 200 presses the loose soil into a preliminary compacted ridge shape, and then the vibrating ridge pressing component 300 corresponding to the ridging component 200 vibrates up and down and presses the preliminary compacted ridge shape at the same time. When the vibrating ridge pressing component 300 vibrates downward, since there is a vibration gap between the limit pin 530 and the limit platform 121, when the downward displacement of the vibrating ridge pressing component 300 is less than the vibration gap, the vibrating ridge pressing component 300 is When the vibrating ridge pressing assembly 300 is constantly pressed downward and vibrated upward, the shock-absorbing spring 520 is squeezed by the limit platform 121 and the vibrating ridge pressing assembly 300, and the shock-absorbing spring 520 is compressed. Therefore, when the vibrating ridge pressing assembly 300 moves upward, the shock-absorbing spring 520 is compressed to generate an elastic force that presses down the vibrating ridge pressing assembly 300. The elastic force reduces the amplitude of the upward vibration of the vibrating ridge pressing assembly 300 and is maintained until the vibrating ridge pressing assembly 300 vibrates downward again. In this process, the ridges pressed out are reduced by the elastic force because the amplitude of the upward vibration of the vibrating ridge pressing assembly 300 is reduced. The looseness of the ridge surface decreases as the upward vibration amplitude decreases, and becomes tighter, and finally a tighter ridge surface can be pressed out.

[0034] The beneficial effect is: when the vibrating ridge pressing assembly 300 is vibrated and lifted upward, the shock-absorbing spring 520 is squeezed by the limit platform 121 and the vibrating ridge pressing assembly 300, and the shock-absorbing spring 520 is compressed. Therefore, when the vibrating ridge pressing assembly 300 moves upward, the shock-absorbing spring 520 is compressed to generate an elastic force that presses down the vibrating ridge pressing assembly 300. The elastic force reduces the amplitude of the upward vibration of the vibrating ridge pressing assembly 300 and is maintained until the vibrating ridge pressing assembly 300 vibrates downward again. In this process, the ridges pressed out are reduced by the elastic force because the amplitude of the upward vibration of the vibrating ridge pressing assembly 300 is reduced. The looseness of the ridge surface decreases as the upward vibration amplitude decreases, and it becomes tighter, and finally a tighter ridge surface can be pressed out.

[0035] Furthermore, the vibrating ridge pressing assembly 300 includes two swinging plates 310, a vibrating shaft 320, an eccentric block 330, a hollow roller 340 and a second driving member 350. One end of the two swinging plates 310 is respectively hinged to the two ends of the mounting frame 120, and the two ends of the vibrating shaft 320 can be rotatably set on the other end of the two swinging plates 310. The eccentric block 330 is set on the vibrating shaft 320, and the hollow roller 340 can be rotatably sleeved on the vibrating shaft 320. The second driving member 350 is set on the swinging plate 310 and is transmission-connected to the vibrating shaft 320.

[0036] In a specific implementation process, the field land is first plowed into loose soil, the frame 100 is hung on the tractor and driven by the tractor to move in the field, the first driving member 110 is connected to the power output end of the tractor, and then the power is transmitted to the ridging assembly 200, so that the ridging assembly 200 presses the loose soil into a preliminary compact ridge shape, and then the hollow roller 340 set corresponding to the ridging assembly 200 presses the preliminary compact ridge shape. During the operation of the hollow roller 340, the second driving member 350 drives the vibration shaft 320 to rotate. At this time, the second driving member 350 is set on the vibration shaft 320. The eccentric block 330 on the upper part generates a periodic up and down vibration force, and the vibration shaft 320 begins to vibrate up and down. When the vibration shaft 320 vibrates up and down, the hollow roller 340 vibrates up and down together with it, and because the hollow roller 340 and the vibration shaft 320 are rotatably connected through bearings, the hollow roller 340 does not rotate with the vibration shaft 320, but is passively rotated to press the ridge by the friction force of the soil surface. The working process of the above-mentioned hollow roller 340 and the eccentric block 330 is combined to achieve the effect of continuous vibration and suppression on the initially compacted ridge shape, and a compacted ridge shape is pressed out one by one on the initially compacted ridge shape. The compacted ridge surface is compared with the prior art which directly vibrates and suppresses the loose soil up and down. The present application first presses the loose soil into a preliminary compacted ridge shape, and then vibrates and suppresses the preliminary compacted ridge shape. When the hollow roller 340 is vibrated and lifted upward, the cushioning spring 520 is squeezed by the limit platform 121 and the vibrating ridge pressing assembly 300, and the cushioning spring 520 is compressed. Therefore, when the hollow roller 340 moves upward, the cushioning spring 520 is compressed to generate an elastic force that presses the hollow roller 340 downward. The elastic force reduces the amplitude of the upward vibration of the hollow roller 340 and is maintained until the hollow roller 340 vibrates downward again. During this process, the ridges pressed out reduce the upward vibration amplitude of the vibrating ridge pressing component 300 due to the elastic force, and the looseness of the ridge surface decreases as the upward vibration amplitude decreases, becoming tighter, and finally a tighter ridge surface can be pressed out, avoiding the situation where part of the ridges pressed out during the upward vibration lifting period when the hollow roller 340 vibrates to press the ridges are too loose. The ridges pressed out in this application are all relatively tight ridge structures. The ridging component 200 ensures the lower limit of the strength of the pressed ridges, and the vibrating ridge pressing component 300 improves the strength of the pressed ridges on this basis.

[0037] In the above process, if the problem of soil collapse in the ridge occurs, and only the soil on one side collapses, the force on the hollow roller 340 will be unbalanced, and the connection of the hollow roller 340 will be subjected to torsion, resulting in a shorter service life of the hollow roller 340. In a possible embodiment, an anti-torsion bar 360 is connected between the two swing plates 310, and the lower end of the positioning rod 510 is hinged to the anti-torsion bar 360. The function of the anti-torsion bar 360 is to make the two swing plates 310 swing up and down synchronously, so as to avoid the above-mentioned torsion force being transmitted to the hinge of the swing plate 310, thereby reducing the life of the fragile hinge point. The above process significantly increases the service life of the hinge connection point of the swing plate 310, and is used to hinge the positioning rod 510 to the middle part of the vibrating ridge pressing assembly 300.

[0038] In the above process, if the ridge forming component 200 and the vibrating ridge pressing component 300 are misaligned, the strength of the two sides of the ridge pressed by the vibrating ridge pressing component 300 will be asymmetric, resulting in one side of the pressed ridge being too tight and having weak air permeability, and the other side being too loose, and the ridge structure strength on this side is too weak. In one possible embodiment, the ridge forming component 200 includes a rotating shaft 210 and an intermediate ridge forming roller 220, and the intermediate ridge forming roller 220 is a hollow cylindrical roller, and the two ends of the cylindrical roller are cone-shaped with openings extending outwards. The rotating shaft 210 is rotatably set on the frame 100 and is connected to the first driving member 110. The transmission method between the first driving member 110 and the rotating shaft 210 is preferably pulley transmission. The pulley transmission has better adaptability and can adapt well to the harsh environment of field operations. The intermediate ridging roller 220 is set on the rotating shaft 210. The intermediate ridging roller 220 can be set on the rotating shaft 210, or it can be concentrically matched with the rotating shaft 210 in any way, and is set in alignment with the hollow roller 340.

[0039] In a specific implementation process, since the intermediate ridging roller 220 and the hollow roller 340 are arranged in opposition, the intermediate ridging roller 220 of the present application first rotates to press out a relatively compact preliminary ridge shape, and then the hollow roller 340 is aligned with the outer contour of the preliminary ridge shape. After the hollow roller 340 actively vibrates and compacts, the compacted ridge structure strength is symmetrical, thereby avoiding the above-mentioned problems.

[0040] In the above process, on both sides of the ridges opened by the ridge forming assembly 200, only the inner side of the ridges close to the ridge forming assembly 200 is compacted, while the outer side is prone to collapse. The soil collapsed in the ridge will hinder the vibration ridge pressing assembly 300 from performing the vibration ridge pressing operation. The soil collapses in the outer ridges. The soil collapsed on this side will lift up the hollow roller 340 on this side when the hollow roller 340 vibrates, resulting in asymmetric strength on both sides of the ridges pressed by the vibration ridge pressing assembly 300, which causes the inner side of the pressed ridge to be too compact and the air permeability to be weakened, while the outer side is too loose. The strength of the ridge structure on the outer side is too weak. Only the soil on the outer side collapses, which will also make the force on the hollow roller 340 unbalanced, making the hollow roller 340 0 is subjected to torsion, resulting in a decrease in the service life of the hollow roller 340. In a possible embodiment, the ridge forming component 200 also includes two tapered rollers 230, and the two tapered rollers 230 are spaced apart at both ends of the middle ridge forming roller 220. There is a ridge gap between the tapered rollers 230 and the ends of the middle ridge forming roller 220. The above arrangement realizes that the ridges on both sides of the ridge pressed out by the ridge forming component 200 are inverted trapezoidal, wherein the tapered rollers 230 stabilize the outer side of the ridge, thereby avoiding the above-mentioned problem of unbalanced force on the hollow roller 340 due to the collapse of the outer side of the ridge, causing the connection of the hollow roller 340 to be subjected to torsion, resulting in a decrease in the service life of the hollow roller 340.

[0041] In the above process, if the ridges opened by the ridge forming component 200 collapse and excess soil appears in the ridges, the excess soil will hinder the vibration ridge pressing component 300 from performing the vibration ridge pressing operation. For example, if excess soil appears in the ridges on only one side of the hollow roller 340, the excess soil will lift up the hollow roller 340 on that side when the hollow roller 340 vibrates, resulting in asymmetric strength on both sides of the ridges pressed by the vibration ridge pressing component 300, thereby causing one side of the pressed ridge to be too tight and the air permeability to be weakened, and the other side to be too loose. If the ridge structure is too weak and the soil collapses on only one side, the force on the hollow roller 340 will be unbalanced, and the connection of the hollow roller 340 will be subjected to torsion, resulting in a shorter service life of the connection of the hollow roller 340. In a possible embodiment, at least two ditching members 130 are provided on the frame 100, and the two ditching members 130 are arranged in alignment with the ridge gap. The ditching members 130 push the soil in the ridge away to avoid excess soil in the ridge that hinders the vibrating ridge pressing assembly 300 from performing the vibrating ridge pressing operation.

[0042] In the above implementation process, the soil needs to be plowed in advance, so it is necessary to install a rotary tillage mechanism on the frame 100. If a rotary tillage mechanism with unilateral transmission is set, the forces on both sides of the tilled soil will be uneven, and the strength on both sides will be asymmetric, which will to a certain extent lead to different degrees of crushing of the soil on both sides of the frame 100. In a possible embodiment, it also includes a rotary tillage assembly 400 arranged on the frame 100, and the rotary tillage assembly 400 includes a transmission member 410 and two rotary tillage blade groups 420 connected to both ends of the transmission member 410. One end of the rotary tillage blade group 420 is set on the transmission member 410, and the other end can be rotatably set on the frame 100. The above arrangement realizes the direct rotary tillage and soil crushing operations and ridge compaction operations through this application, and the two symmetrically arranged rotary tillage blade groups 420 can achieve consistent conditions on both sides of the tilled soil, provide symmetrical soil conditions for ridge formation, and further ensure the strength symmetry of the ridges pressed out by this application.

[0043] Furthermore, in the above implementation process, the transmission member 410 is located between the two rotary tillage assemblies 400, where the soil cannot be turned over and crushed, and the impact of unbroken soil blocks will damage the transmission member 410. The transmission member 410 is provided with a protective shovel 430, and the protective shovel 430 is vertically arranged and faces the moving direction of the frame 100. The setting of the protective shovel 430 protects the transmission member 410 from being hit by unbroken soil blocks, and can also cultivate the dead corner between the two rotary tillage assemblies 400, thereby achieving the cultivating effect of a plow.

[0044] Furthermore, a scraper plate 150 is provided on the frame 100. The scraper plate 150 is located between the rotary tillage component 400 and the ridging component 200. The scraper plate 150 first scrapes the loose soil to be ridged to a height suitable for ridging, and then performs the ridging operation.

[0045] In a most specific implementation process, the frame 100 is suspended on a tractor and driven by the tractor to move in the field. The rotary tillage blade group 420 first plows the field land into loose soil. The frame 100 is suspended on the tractor and driven by the tractor to move in the field. The first driving member 110 is connected to the power output end of the tractor, and then transmits power to the ridging component 200, so that the ridging component 200 presses the loose soil into a preliminary compacted ridge shape. Then, the hollow roller 340 corresponding to the ridging component 200 presses the preliminary compacted ridge shape. During the operation of the hollow roller 340, the second driving member 350 drives the vibration shaft 320 to rotate. At this time, the eccentric block 330 set on the vibration shaft 320 generates a periodic up and down vibration force, and the vibration shaft 320 begins to vibrate up and down. When 320 vibrates up and down, the hollow roller 340 vibrates up and down together, and since the hollow roller 340 and the vibration shaft 320 are rotatably connected through bearings, the hollow roller 340 does not rotate with the vibration shaft 320, but is passively rotated to press the ridge by the friction of the soil surface. The working process of the above-mentioned hollow roller 340 and the eccentric block 330 is combined to achieve the effect of continuous vibration and pressing on the initially compacted ridge shape, and the compacted ridge surface is pressed out on the initially compacted ridge shape one by one. Compared with the prior art of directly vibrating and pressing the loose soil up and down, the present application first presses the loose soil into a initially compacted ridge shape, and then vibrates and presses the initially compacted ridge shape, thereby avoiding the situation where part of the ridge pressed out during the upward vibration lifting when the hollow roller 340 vibrates to press the ridge is too loose.

[0046] The ridges pressed out by the present application are all relatively compact ridge structures. The ridge forming assembly 200 ensures the lower limit of the strength of the pressed ridges. The vibrating ridge pressing assembly 300 improves the strength of the pressed ridges on this basis. The present application is: when the vibrating ridge pressing assembly 300 is vibrated and lifted upward, the damping spring 520 is squeezed by the limit platform 121 and the vibrating ridge pressing assembly 300, and the damping spring 520 is compressed. Therefore, when the vibrating ridge pressing assembly 300 moves upward, the damping spring 520 is compressed to generate an elastic force that presses down the vibrating ridge pressing assembly 300. The elastic force reduces the amplitude of the upward vibration of the vibrating ridge pressing assembly 300 and is maintained until the vibrating ridge pressing assembly 300 vibrates downward again. In this process The ridges pressed out in the middle reduce the upward vibration amplitude of the vibrating ridge pressing component 300 due to the elastic force, and the looseness of the ridge surface decreases with the reduction of the upward vibration amplitude, becoming more compact, and finally being able to press out a compacter ridge surface, thereby avoiding the situation where part of the ridge pressed out during the upward vibration lifting period when the hollow roller 340 vibrates to press the ridge is too loose. The first driving member 110 is connected to the power output end of the tractor, and then transmits power to the ridging component 200, so that the ridging component 200 presses the loose soil into a preliminary compact ridge shape, and then the vibrating ridge pressing component 300 corresponding to the ridging component 200 vibrates up and down and presses the preliminary compact ridge shape at the same time.

[0047] When the vibrating ridge pressing assembly 300 vibrates downward, since there is a vibration gap between the limit pin 530 and the limit platform 121, when the downward displacement of the vibrating ridge pressing assembly 300 is less than the vibration gap, the vibrating ridge pressing assembly 300 is pressed down normally. When the vibrating ridge pressing assembly 300 is vibrated and lifted upward, the shock-absorbing spring 520 is squeezed by the limit platform 121 and the vibrating ridge pressing assembly 300, and the shock-absorbing spring 520 is compressed. Therefore, when the vibrating ridge pressing assembly 300 moves upward, the shock-absorbing spring 520 is compressed to generate an elastic force that presses down the vibrating ridge pressing assembly 300. The elastic force reduces the amplitude of the upward vibration of the vibrating ridge pressing assembly 300 and is maintained until the vibrating ridge pressing assembly 300 vibrates downward again. In this process, the ridges pressed out are reduced by the elastic force because the amplitude of the upward vibration of the vibrating ridge pressing assembly 300 is reduced. The looseness of the ridge surface decreases with the reduction of the upward vibration amplitude, and becomes more compact, and finally a more compact ridge surface can be pressed out.

[0048] Obviously, the above embodiments of the present application are merely examples for the purpose of clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, other variations or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A graded vibration-limited ridge pressing device, characterized in that: include Frame, ridging assembly, vibrating ridging assembly and vibration limiting assembly, the frame is provided with a first driving member and a mounting frame, the ridging assembly and the vibrating ridging assembly are sequentially arranged on the rear side of the frame, the ridging assembly can be rotatably arranged on the frame and is transmission connected with the first driving member, the vibrating ridging assembly can be rotatably arranged on the mounting frame, the vibration limiting assembly includes a positioning rod, a shock-absorbing spring and a limit pin, the lower end of the positioning rod is hingedly connected to the vibrating ridging assembly, the mounting frame is hingedly connected to a limit platform, the limit platform is provided with a sliding hole, the positioning rod can be slidably inserted into the sliding hole, the shock-absorbing spring is sleeved on the positioning rod and is located between the limit platform and the vibrating ridging assembly, the upper end of the positioning rod is provided with a limiting hole, the limiting hole is located at the end of the limit platform away from the shock-absorbing spring, and there is a vibration gap with the limit platform, the limit pin is locked with the limiting hole, and the limit pin and the limit platform can be limitably matched.

2. The graded vibration-limited ridge pressing device according to claim 1, characterized in that: The vibrating ridge pressing assembly includes two swinging plates, a vibrating shaft, an eccentric block, a hollow roller and a second driving member. One end of the two swinging plates is hinged to the two ends of the mounting frame respectively, and the two ends of the vibrating shaft are rotatably set on the other end of the two swinging plates respectively. The eccentric block is set on the vibrating shaft, and the hollow roller is rotatably sleeved on the vibrating shaft. The second driving member is set on the swinging plate and is transmission-connected to the vibrating shaft.

3. The graded vibration-limited ridge pressing device according to claim 2, characterized in that: An anti-torsion bar is connected between the two swing plates, and the lower end of the positioning rod is hinged to the anti-torsion bar.

4. The graded vibration-limited ridge pressing device according to claim 2, characterized in that: The ridging assembly includes a rotating shaft and an intermediate ridging roller. The rotating shaft is rotatably arranged on the frame and is transmission-connected to the first driving member. The intermediate ridging roller is arranged on the rotating shaft and is aligned with the hollow roller.

5. The graded vibration-limited ridge pressing device according to claim 4, characterized in that: The ridging assembly further comprises two tapered rollers, which are spaced apart at both ends of the middle ridging roller, and a furrow interval exists between the tapered roller and the end of the middle ridging roller.

6. The graded vibration-limited ridge pressing device according to claim 5, characterized in that: At least two ditching members are provided on the frame, and the two ditching members are arranged in alignment at the ridge intervals.

7. The graded vibration-limited ridge pressing device according to claim 1, characterized in that: It also includes a rotary tillage assembly arranged on the frame, which includes a transmission member and two rotary tillage blade groups that are transmission-connected to both ends of the transmission member. One end of the rotary tillage blade group is arranged on the transmission member, and the other end is rotatably arranged on the frame.

8. The graded vibration-limited ridge pressing device according to claim 7, characterized in that: The transmission member is provided with a protective shovel, and the protective shovel is vertically arranged and faces the walking direction of the frame.

9. The graded vibration-limited ridge pressing device according to claim 7, characterized in that: The frame is also provided with a scraper plate, which is located between the rotary tillage component and the ridging component.

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