Pressing device of agricultural machine

Abstract

The utility model belongs to the technical field of agriculture, and particularly relates to an agricultural machine pressing device which comprises a pressing wheel shaft and a pressing ring connected to the pressing wheel shaft in a sleeved mode, the two ends of the pressing wheel shaft are rotationally connected with a machine frame through bearing seats, and a ditch pressing sleeve is further connected to the outer side of the pressing ring in a sleeved mode. Annular groove pressing protrusions are arranged on the surface of the groove pressing sleeve at intervals in the axis direction of the press wheel shaft, and grooves are formed in soil by means of pressing of the groove pressing protrusions. The furrow pressing sleeve with the annular furrow pressing protrusions is additionally arranged on the outer side of the pressing ring, the furrow pressing protrusions are used for pressing a plurality of rows of furrows under the action of gravity, and the firmness of soil is properly improved, so that the furrows are prevented from being closed again, and the flatness of the furrows is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of agriculture, and particularly relates to an agricultural machinery pressing device. Background Art

[0002] The furrow opener of a seeder is a main working component of the seeder for furrowing operations. Seeds are introduced into the grooves through a seed tube. Traditional furrow openers are generally hoe shovel type, arrow shovel type, cutter type, etc.

[0003] Traditional furrow openers are mainly used for relatively firm soil. However, for soil that has been rotary tilled, since the soil is relatively soft, the grooves formed are prone to re-closing, resulting in uneven grooves, which affects the sowing depth of seeds or the laying quality of drip irrigation tapes. Content of the Utility Model

[0004] In order to solve the problems existing in the above-mentioned prior art, the utility model provides an agricultural machinery pressing device. By adding a grooving sleeve with a ring-shaped grooving protrusion outside the pressing ring, multiple rows of grooves are pressed out by the grooving protrusion under the action of gravity, appropriately increasing the firmness of the soil, thereby preventing the grooves from re-closing and ensuring the flatness of the grooves.

[0005] The specific technical solution adopted by the utility model is as follows:

[0006] An agricultural machinery pressing device includes a pressing wheel shaft and a pressing ring sleeved on the pressing wheel shaft. Both ends of the pressing wheel shaft are rotatably connected to a frame through bearing seats. A grooving sleeve is also sleeved outside the pressing ring. The surface of the grooving sleeve is provided with ring-shaped grooving protrusions at intervals along the axis direction of the pressing wheel shaft. The soil forms grooves by the pressing of the grooving protrusions.

[0007] Sealing plates are also arranged on both sides of the pressing ring. The sealing plates are provided with through holes for the pressing wheel shaft to pass through. The gap between the pressing ring and the grooving sleeve is sealed by the sealing plates.

[0008] The surface of the sealing plate is provided with an annular inward flange. The gap between the pressing ring and the grooving sleeve forms an insertion fit with the inward flange. The grooving sleeve is also provided with fixing bolts. The fixing bolts pass through the inward flange and are fixedly connected to the pressing ring. The sealing plate is detachably fixedly connected to the pressing ring by the fixing bolts.

[0009] The cross-section of the grooving protrusion along the axis direction of the grooving sleeve is in a trapezoidal structure. The lower bottom of the trapezoidal structure is connected to the grooving sleeve. The width of the upper bottom of the trapezoidal structure is 2 - 6 cm, and the height of the trapezoidal structure is 2 - 6 cm.

[0010] The grooving sleeve includes a pair of sleeve components in a semi-circular groove structure. The pressing ring is located in the chamber formed by the buckling of the two sleeve components.

[0011] The grooving protrusion of the sleeve assembly has a hollow structure, and the cavity between the grooving protrusion and the compaction ring is also filled with a semi-circular filling ring, and the filling ring hinders the deformation of the grooving protrusion.

[0012] The inner ring and the outer ring of the compaction ring are hollow and form a counterweight chamber, and a feed port with opening and closing freedom is arranged on the side wall of the counterweight chamber, and the counterweight chamber is filled with counterweight material through the feed port.

[0013] The beneficial effects of the present utility model are:

[0014] The present utility model is an improvement based on the compaction ring to form a compaction device integrating compaction and ditch opening. By adding a grooving sleeve with a ring-shaped grooving protrusion outside the compaction ring, when in use, the compaction device rolls forward with the tractor, and the grooving protrusions on its surface press out multiple rows of grooves under the action of gravity. While opening the grooves, the compaction ring will also compact the soil once to appropriately increase the firmness of the soil, thereby avoiding the re-closing of the grooves and ensuring the flatness of the grooves. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic side structural diagram of the present utility model;

[0017] Figure 3 is a schematic front structural diagram of the present utility model;

[0018] In the drawings, 1, compaction wheel shaft; 2, compaction ring; 3, bearing seat; 4, grooving sleeve; 5, grooving protrusion; 6, sealing plug; 7, inward flange; 8, filling ring; 9, counterweight chamber. Detailed Embodiments

[0019] The following further describes the present utility model in conjunction with the drawings and specific embodiments:

[0020] Specific embodiments, as Figures 1-3 shown, the present utility model provides an agricultural machinery compaction device, including a compaction wheel shaft 1 and a compaction ring 2 sleeved on the compaction wheel shaft 1. Both ends of the compaction wheel shaft 1 are rotatably connected to the frame through bearing seats 3. A grooving sleeve 4 is also sleeved outside the compaction ring 2. The surface of the grooving sleeve 4 is provided with ring-shaped grooving protrusions 5 at intervals along the axis direction of the compaction wheel shaft 1, and the soil forms grooves by the pressing of the grooving protrusions 5.

[0021] Traditional furrow openers are mainly used for relatively firm soil. However, for rototilled soil, since the soil is relatively soft, the grooves formed are prone to re-closing, resulting in an uneven whole groove, which affects the sowing depth of seeds or the laying quality of drip irrigation tapes.

[0022] Therefore, the present utility model is improved based on the pressing ring 2 to form a pressing device that combines pressing and furrowing. By adding a furrow pressing sleeve 4 with a ring-shaped furrow pressing protrusion 5 on the outer side of the pressing ring 2, during use, the pressing device rolls forward along with the tractor, and the furrow pressing protrusions 5 on its surface press out multiple rows of grooves under the action of gravity. While forming the grooves, the pressing ring 2 also presses the soil once to appropriately increase the firmness of the soil, thereby preventing the grooves from re-closing and ensuring the flatness of the grooves.

[0023] Sealing plug plates 6 are also arranged on both sides of the pressing ring 2. Through holes for the pressing wheel shaft 1 to pass through are arranged on the sealing plug plates 6. The gap between the pressing ring 2 and the furrow pressing sleeve 4 is blocked by the sealing plug plates 6. Since the inner side of the furrow pressing sleeve 4 is wavy, if sticky soil enters the inner grooves of the furrow pressing sleeve 4, it is difficult to clean. Therefore, the sealing plug plates 6 are provided to prevent soil from entering the chamber of the furrow pressing sleeve 4.

[0024] An annular inward flange 7 is arranged on the surface of the sealing plug plate 6. The gap between the pressing ring 2 and the furrow pressing sleeve 4 forms an insertion fit with the inward flange 7. A fixing bolt is also arranged on the furrow pressing sleeve 4. The fixing bolt passes through the inward flange 7 and is fixedly connected to the pressing ring 2. The sealing plug plate 6 is detachably fixedly connected to the pressing ring 2 by the fixing bolt. Through the fixation of the inward flange 7 and the fixing bolt, the fixed connection of the sealing plug plate 6 can be realized, and at the same time, the pressing ring 2 and the furrow pressing sleeve 4 are fixedly connected, avoiding the non-rotation of the furrow pressing sleeve 4 and its close contact with the soil during forward movement, resulting in increased wear on the surface of the furrow pressing sleeve 4.

[0025] The cross-section of the furrow pressing protrusion 5 along the axis direction of the furrow pressing sleeve 4 is in a trapezoidal structure. The lower bottom of the trapezoidal structure is connected to the furrow pressing sleeve 4. The upper bottom width of the trapezoidal structure is 2 - 6 cm, and the height of the trapezoidal structure is 2 - 6 cm. The trapezoidal furrow pressing protrusion 5 is used to make the groove into a structure with a wider upper part and a narrower lower part. The structure with a wider upper part and a narrower lower part can prevent the soil in the upper half of the groove from falling to the lower half and forming a closure, ensuring the stable structure of the groove and the sowing depth of seeds or the laying quality of drip irrigation tapes.

[0026] The grooving sleeve 4 includes a pair of sleeve components in a semi-circular groove structure. The compaction ring 2 is located in the chamber formed by the buckling of the two sleeve components. If the grooving sleeve 4 adopts an integral cylindrical structure, it is relatively difficult to install with the compaction ring 2. It is necessary to erect the compaction ring 2 and then sleeve the grooving sleeve 4. Therefore, the grooving sleeve 4 of the present utility model is formed by buckling a pair of sleeve components. During installation, first cover one sleeve component onto the compaction ring 2 and fix it, then rotate the compaction ring 2 by half a turn and install the other sleeve component. The installation and disassembly are convenient. At the same time, it is convenient to observe the residual soil inside the grooving sleeve 4 when cleaning the inside, and it is easy to clean up.

[0027] The grooving protrusion 5 of the sleeve component is in a hollow structure, and the cavity between the grooving protrusion 5 and the compaction ring 2 is also filled with a semi-circular filling ring 8. The filling ring 8 hinders the deformation of the grooving protrusion 5. Since the space between the grooving protrusion 5 and the compaction ring 2 is hollow, when encountering stones or relatively hard clumpy soil, it may be squeezed and deformed, affecting the flatness of the groove. Therefore, the filling ring 8 is provided to improve the structural strength of the grooving protrusion 5. The filling ring 8 is in a semi-circular ring structure, which is convenient for fitting and installing with the grooving protrusion 5 of the sleeve component.

[0028] The inner ring and the outer ring of the compaction ring 2 are hollow and form a counterweight chamber 9. The side wall of the counterweight chamber 9 is provided with a feed port with opening and closing freedom. The counterweight chamber 9 is filled with counterweight material through the feed port. The counterweight material can be sand or water. According to different softness of the soil and the required firmness of the soil by the user, different masses of counterweight material can be filled into the counterweight chamber 9 to control the weight of the compaction device, thereby controlling the firmness of the formed groove.

Claims

1. A suppressing device for agricultural machinery, comprising a suppressing wheel shaft (1) and a suppressing ring (2) sleeved on the suppressing wheel shaft (1), wherein both ends of the suppressing wheel shaft (1) are rotatably connected to a frame by means of a bearing seat (3), and characterized in that: A groove pressing sleeve (4) is also sleeved on the outer side of the pressing ring (2), and annular groove pressing protrusions (5) are arranged at intervals on the surface of the groove pressing sleeve (4) along the axial direction of the pressing wheel shaft (1), and grooves are formed in the soil by pressing the groove pressing protrusions (5).

2. The agricultural machinery suppression device according to claim 1, characterized in that: Sealing plugs (6) are also provided on both sides of the suppression ring (2), and a through hole is provided on the sealing plug (6) for the suppression wheel shaft (1) to pass through. The gap between the suppression ring (2) and the groove pressing sleeve (4) is sealed by means of the sealing plug (6).

3. The agricultural machinery suppression device according to claim 2, characterized in that: The surface of the sealing plug (6) is provided with an annular inner flange (7), and the gap between the suppression ring (2) and the groove compression sleeve (4) and the inner flange (7) form a plug-in fit. The groove compression sleeve (4) is also provided with a fixing bolt, which passes through the inner flange (7) and is fixedly connected to the suppression ring (2). The sealing plug (6) is detachably fixedly connected to the suppression ring (2) by means of the fixing bolt.

4. The agricultural machinery suppression device according to claim 1, characterized in that: The cross section of the groove pressing protrusion (5) along the axial direction of the groove pressing sleeve (4) is a trapezoidal structure, the lower bottom of the trapezoidal structure is connected to the groove pressing sleeve (4), the upper bottom width of the trapezoidal structure is 2-6 cm, and the height of the trapezoidal structure is 2-6 cm.

5. The agricultural machinery suppression device according to claim 1, characterized in that: The groove pressing sleeve (4) comprises a pair of sleeve assemblies in a semicircular groove structure, and the pressing ring (2) is located in a cavity formed by the buckling of the two sleeve assemblies.

6. The agricultural machinery suppression device according to claim 5, characterized in that: The groove pressure protrusion of the sleeve assembly is a hollow structure, and the cavity between the groove pressure protrusion (5) and the suppression ring (2) is also filled with a semi-circular filling ring (8), and the filling ring (8) prevents the groove pressure protrusion (5) from deforming.

7. The agricultural machinery suppression device according to claim 1, characterized in that: The inner ring and the outer ring of the suppression ring (2) are hollow and form a counterweight chamber (9). A feed port with opening and closing freedom is provided on the side wall of the counterweight chamber (9), and the counterweight chamber (9) is filled with counterweight material through the feed port.

Images