Air suction peanut flexible high-speed precision seeding device

Abstract

The present invention relates to agricultural machinery, in particular to an air-suction type flexible high-speed precision seeding device for peanuts on a seeding machine. It comprises a primary seeding device and a secondary seeding device, wherein the secondary seeding device is connected to the bottom of the primary seeding device; the primary seeding device comprises a primary seeding front housing, a primary seeding rear housing and a seeding disc, wherein the primary seeding front housing and the primary seeding rear housing are fixedly connected to form a cylindrical chamber, and the seeding disc is arranged in the cylindrical chamber, and an upper seed cleaning mechanism, a lower seed cleaning mechanism and a flexible seed partition plate are arranged between the primary seeding front housing and the seeding disc, and a sealing gasket, a negative pressure shell assembly and a flexible seed unloading mechanism are arranged between the seeding disc and the primary seeding rear housing. The high-speed, precision and low-loss seeding operation of peanuts is realized, the efficiency of peanut seeding is improved, and it is beneficial to improve the level of mechanized peanut planting and enhance the comprehensive production capacity of peanuts.

Description

Technical Field

[0001] The invention relates to agricultural machinery, in particular to an air suction type peanut flexible high-speed precision seeding device used on a seeding machine. Background Art

[0002] The uneven size of peanut seeds and the high requirements for precision sowing have increased the difficulty of researching peanut sowing equipment. The problems of low sowing efficiency and poor sowing quality are particularly prominent. At the same time, with the acceleration of land transfer in my country, the land cultivation model is constantly developing in the direction of scale and intensiveness, and improving operation efficiency has become an inevitable trend for future development. In order to better adapt to the development of the times and the requirements of efficient operations, the peanut sowing process should conform to the pace of development. As the core component of the entire sowing equipment, the seeding performance of the seeding device is one of the important factors affecting the overall operation effect of the seeding machine. In order to further promote the process of peanut sowing mechanization, the design of an air-suction peanut flexible high-speed precision seeding device is of great significance to promoting efficient and high-quality development of sowing operations. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects of the prior art and propose an air-suction type flexible high-speed precision seeding device for peanuts, which can realize high-speed, precise and low-loss sowing operations of peanuts, improve the efficiency of peanut sowing, and be beneficial to improving the level of mechanized peanut planting and enhancing the comprehensive production capacity of peanuts.

[0004] The technical solution of the present invention is: an air-suction type peanut flexible high-speed precision seeding device, which includes a primary seeding device and a secondary seeding device, and the secondary seeding device is connected to the bottom of the primary seeding device;

[0005] The one-time seeding device comprises a one-time seeding front shell, a one-time seeding rear shell and a seeding disc, the one-time seeding front shell and the one-time seeding rear shell are fixedly connected to form a cylindrical chamber, the seeding disc is arranged in the cylindrical chamber, an upper seed cleaning mechanism, a lower seed cleaning mechanism and a flexible seed partition plate are arranged between the one-time seeding front shell and the seeding disc, and a sealing gasket, a negative pressure shell assembly and a flexible seed unloading mechanism are arranged between the seeding disc and the one-time seeding rear shell;

[0006] The upper seed cleaning mechanism is located at the top of the housing before the first seeding, and the lower seed cleaning mechanism is located below the upper seed cleaning mechanism. The upper seed cleaning mechanism includes an adjustment plate and an upper seed cleaning arc plate. The adjustment plate is fixed to the top of the housing before the first seeding, and an adjustment groove is provided on the adjustment plate along the radial direction of the housing before the first seeding. An upper seed cleaning arc brush is fixed to the bottom of the upper seed cleaning arc plate. The upper seed cleaning arc brush is located in the seeding cavity and on the front side of the seeding disk. The two ends of the upper seed cleaning arc plate are respectively slidably connected to the two fixed clamping seats fixed on the top of the housing before the first seeding through a connecting rod. The adjustment plate and the upper seed cleaning arc plate are connected by a screw rod, and the screw rod passes through the adjustment groove of the adjustment plate and the upper seed cleaning arc plate respectively. The screw rod is sequentially covered with an upper seed cleaning adjustment pointer, a spring I and a nut I from the inside to the outside;

[0007] The lower seed cleaning mechanism comprises a lower seed cleaning annular plate, a lower seed cleaning annular brush is provided on the side of the lower seed cleaning annular plate facing the seed discharging disk, the lower seed cleaning annular brush is located below the upper seed cleaning arc brush, a center screw is fixed on the side of the lower seed cleaning annular plate facing the housing before one-time seeding, a lower seed cleaning device support plate is fixed on the top of the inner wall of the housing before one-time seeding, a radial inner notch is provided on the lower seed cleaning device support plate, and a lower seed cleaning device notch is correspondingly provided on the housing before one-time seeding, the end of the center screw passes through the inner notch and the lower seed cleaning device notch in sequence, and is located on the outer side of the housing before one-time seeding, the lower seed cleaning adjustment pointer, the lower seed cleaning adjustment spring and the lower seed cleaning adjustment nut are arranged in sequence on the end of this side of the center screw from the inside to the outside, and the center screw slides radially along the inner notch and the notch of the lower seed cleaning device;

[0008] The seeding disc is an annular disc, a seeding shaft is fixed at the center of the seeding disc, and a seeding notch and a seed stirring groove are arranged in sequence from outside to inside on the circumferential surface of the shell of the seeding disc facing the first seeding, and a plurality of seeding notches are evenly spaced along the edge of the circumferential surface of the seeding disc, and a seed stirring groove is arranged on the annular inner side of each seeding notch;

[0009] A seed suction hole is provided in each seed taking slot, and a long vacuum suction cup is provided along the annular outer side of the seed suction hole, the long vacuum suction cup is located in the seed taking slot, and a side wall of one side of the seed taking slot forms an angle of 60° with the bottom surface of the seed taking slot, and the other side wall of the corresponding seed taking slot is perpendicular to the bottom surface of the seed taking slot, the seed stirring groove is arc-shaped, and the end portion of the seed stirring groove connected to the seed taking slot is higher than the bottom surface of the seed taking slot, and the groove surface of the seed stirring groove consists of an arc-shaped groove surface and an inclined groove surface, and the arc-shaped groove surface and the inclined groove surface intersect at the bottom of the seed stirring groove, and a concave curved groove with the same curvature as the seed stirring groove is provided on the outer side of the seed stirring groove, and an anti-collision rubber strip is installed in the concave curved groove.

[0010] In the present invention, a barrel-shaped seed-feeding channel is provided on the upper part of the outer surface of the housing before seeding once, a seed-feeding port is provided at the bottom of the seed-feeding channel, the seed-feeding port is communicated with the cylindrical chamber of the housing before seeding once, a seed-feeding port adjustment plate is provided at the seed-feeding port on the inner surface of the housing before seeding once, the seed-feeding port adjustment plate includes an upper and lower adjustment plate, a baffle plate and an upper and lower adjustment mechanism, a slide groove is provided between the upper and lower adjustment plates and the baffle plate, the baffle plate is located directly in front of the seed-feeding port, the upper and lower adjustment plates are connected to the upper and lower adjustment mechanism, a plurality of vertical slide rails are provided on the inner surface of the housing before seeding once, and the upper and lower adjustment plates and the baffle plate are respectively slidably arranged between the vertical slide rails;

[0011] The up and down adjustment mechanism includes a vertical adjustment baffle slot located on the shell body before one seeding and a seed inlet adjustment rod located in the adjustment baffle slot. The seed inlet adjustment rod slides up and down in the adjustment baffle slot. The seed inlet adjustment pointer, the seed inlet adjustment spring and the seed inlet adjustment nut are sequentially sleeved on the seed inlet adjustment rod from the inside to the outside, and a corresponding dial is provided on the outer side wall of the shell body before one seeding.

[0012] Along the rotation direction of the seed disc 1, the cylindrical chamber is divided into a seed filling area I, a self-cleaning area II, a forced seed cleaning area III, a seed carrying area IV and a seed dropping area V in sequence. A flexible seed isolation baffle is arranged between the forced seed cleaning area III and the seed carrying area IV. The flexible seed isolation baffle comprises a vertically connected fixed plate and a seed isolation hole plate. The upper and lower ends of the fixed plate are respectively fixedly connected to the shell before one seed dropping. A number of square notches are arranged at intervals on the seed isolation hole plate.

[0013] A triangular support ring is provided in the middle of the inner side of the shell after one sowing, and bolt holes are provided at the three top ends of the support ring respectively. The bolts in the bolt holes realize the fixed connection between the shell after one sowing and the negative pressure shell assembly. A horseshoe-shaped vacuum chamber is provided along the annular circumference of the inner side of the shell after one sowing, and the horseshoe-shaped vacuum chamber corresponds to the seed suction hole on the circumferential edge of the seeding disc. A sealing gasket is provided at the horseshoe-shaped vacuum chamber, and an air inlet is provided on the shell after one sowing corresponding to the top end of the horseshoe-shaped vacuum chamber. The triangular support ring is connected to the annular side wall of the horseshoe-shaped vacuum chamber outside it through a reinforcing rib.

[0014] A fixing frame is provided at the lower part of the inner side surface of the shell after one seeding, and a flexible seed unloading mechanism is provided at the fixing frame; the flexible seed unloading mechanism comprises a seed unloading wheel connecting rod and a seed unloading wheel, one end of the seed unloading wheel connecting rod is hinged to the fixing frame, and a flexible seed unloading wheel is rotatably arranged at the bottom of the other end of the seed unloading wheel connecting rod, and a plurality of raised column teeth are evenly spaced along the circumferential direction of the flexible seed unloading wheel, and the raised column teeth are correspondingly inserted into the seed suction holes, and the middle part of the seed unloading wheel connecting rod is connected to the inner side surface of the shell after one seeding through a spring II.

[0015] The top end of the seeding port fixing frame is fixedly connected to the bottom of the housing before the primary seeding, and the bottom end of the seeding port fixing frame is fixedly connected to the secondary seeding device.

[0016] The secondary seeding device comprises a secondary seeding front housing and a secondary seeding rear housing, the secondary seeding front housing and the secondary seeding rear housing are fixedly connected to form a secondary seeding cavity, in the secondary seeding cavity, upper and lower synchronous pulleys and a synchronous belt matched with the synchronous pulleys are arranged along the height direction, a plurality of spoon-shaped fingers are arranged on the synchronous belt at intervals, a rotating shaft I is fixed at the center of the upper synchronous pulley, and the rotating shaft I is rotatably connected with the secondary seeding front housing and the secondary seeding rear housing;

[0017] A rotating shaft II is fixed at the center of the lower synchronous pulley, and the rotating shaft II is rotatably connected to the secondary seeding front housing and the secondary seeding rear housing through a slider type spherical bearing with a seat, the secondary seeding front housing and the secondary seeding rear housing are both provided with slots, and the two ends of the rotating shaft II are respectively slidably arranged in the slots, the top of the slider type spherical bearing with a seat is fixedly connected to the screw, and the upper part of the screw is threadedly connected to the square seat fixed to the middle part of the secondary seeding front housing and the secondary seeding rear housing, and the secondary seeding front housing and the secondary seeding rear housing outside the slider type spherical bearing with a seat are respectively fixed with slide rail grooves, and the slider type spherical bearing with a seat slides up and down in the slide rail grooves.

[0018] The beneficial effects of the present invention are:

[0019] (1) Due to the structural design of the seed taking notch, the seed space is limited to a single seed, which reduces the possibility of multiple seed suction in one hole; the seed taking notch is slightly deeper than the seed stirring groove, so that the staggered part of the ladder plays a certain supporting role on the seeds during the seed carrying process, thereby reducing the negative pressure consumption; at the same time, the inclined design of the open outer ring surface and the left end surface of the seed taking notch can effectively improve the seeding effect, so that the seeds can be smoothly separated from the seed taking notch, avoiding the possibility of difficulty in seeding;

[0020] (2) The seed stirring groove is in an arc shape, and the curve fits the trajectory of the seeds rotating with the seed disk, which effectively enhances the mobility of the seed population in the seed filling area and improves the seed filling effect, thereby avoiding the occurrence of missed seeding. At the same time, the half-arc and half-inclined cross-sectional design can ensure effective guidance of peanut seeds with different movement forms, so that they can flow smoothly from the inner side of the seed disk to the outer edge into the seed removal slot along the groove curve;

[0021] (3) The anti-collision rubber strip can further improve the disturbance effect on the seed population during the seed filling process and enhance the mobility of the seed population. The installation of the long vacuum suction cup can further improve the adsorption capacity of the mold hole and form a coating on the seeds under the action of negative pressure. At the same time, the selection of flexible materials for both can effectively solve the problem of easy damage to peanut seeds under high-speed operation;

[0022] (3) The design of the two-stage flexible seed cleaning mechanism can further avoid the phenomenon of multiple suction from one hole and reseeding in some cases. At the same time, the upper and lower seed cleaning mechanisms and the seed contact parts are made of flexible brushes, which can effectively reduce the damage to the peanut red skin, thereby ensuring a high germination rate.

[0023] (4) The flexible seed baffle effectively isolates the seeds that fall from the seed filling area and the seed cleaning area from the seeding area, thus preventing the cleared seeds from falling into the seed discharge port and causing the possibility of reseeding. At the same time, the selection of flexible rubber material effectively avoids damage to the peanut seeds.

[0024] (5) The present application uses the air suction principle to fill the space between the seeding disc and the horseshoe-shaped negative pressure vacuum chamber with negative pressure, so that the peanut seeds are stably adsorbed on the mold holes to complete the entire seeding process. Compared with mechanical seeding devices, this effectively reduces the seed damage rate, reduces the requirements for seed size and shape, and improves work efficiency.

[0025] (6) By setting a seed inlet adjustment plate at the seed inlet, the amount of peanut seeds fed can be flexibly adjusted;

[0026] (6) By setting up a secondary seeding device, the problem of seed bouncing out of place, which is easy to occur in traditional seeding methods under high-speed operations, is effectively solved. It can effectively ensure that the throwing speed of peanut seeds accurately matches the forward speed of the seeding unit. At the same time, the spoon-like design of its internal synchronous belt can effectively maintain the stability of the peanut transportation process and accurately drop the peanuts into the seed trench.

[0027] In summary, the present application can effectively realize high-speed, precise and low-loss peanut sowing operations, and significantly solves the problems of low speed and high sowing damage of the peanut seeding device during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an exploded schematic diagram of the overall structure of the present application;

[0029] Figure 2 It is a schematic diagram of the main structure of this application;

[0030] Figure 3 It is a rear view structural diagram of the present application;

[0031] Figure 4 yes Figure 3 AA section view in the figure;

[0032] Figure 5 It is a rear view of the shell before one planting;

[0033] Figure 6 It is a structural schematic diagram of a seed tray;

[0034] Figure 7It is a partial structural schematic diagram of the seed tray;

[0035] Figure 8 It is a structural diagram of the seed entering adjustment plate.

[0036] In the figure: 1 seed inlet channel; 2 nut Ⅰ; 3 upper seed cleaning adjustment pointer; 4 spring Ⅰ; 5 adjustment plate; 6 upper seed cleaning arc plate; 7 fixed card seat; 8 upper seed cleaning arc brush; 9 flexible seed separation plate; 901 fixed plate; 902 seed separation hole plate; 10 seed inlet adjustment plate; 11 lower seed cleaning annular plate; 12 lower seed cleaning annular brush; 13 seed row plate; 14 sealing gasket; 1401 upper and lower adjustment plates; 1402 baffle plate; 1403 vertical slide rail Ⅰ; 1404 vertical slide rail Ⅱ; 1405 vertical slide rail Ⅲ; 15 seed row shaft; 16 negative pressure shell assembly; 17 air inlet; 18 primary seeding rear shell; 19 fixed frame; 20 spring Ⅱ; 21 seed unloading wheel connecting rod; 22 seed unloading wheel; 23 shaft Ⅰ; 24 bearing seat; 25 secondary seeding rear shell; 26 screw; 27 slider type spherical bearing with seat; 28 Rotating shaft Ⅱ; 29 notch; 30 synchronous belt; 31 spoon-shaped dial finger; 32 lower synchronous pulley; 33 secondary seeding front shell; 34 slide rail groove; 35 square seat; 36 seed row port fixing frame; 37 long vacuum suction cup; 38 anti-collision rubber strip; 39 scale plate Ⅰ; 40 adjustment baffle notch; 41 seed inlet adjustment pointer; 42 seed inlet adjustment spring; 43 seed inlet adjustment rod; 44 seed inlet adjustment nut; 45 lower seed cleaning device notch; 46 lower seed cleaning adjustment pointer; 47 lower seed cleaning adjustment spring; 48 lower seed cleaning adjustment nut; 49 primary seeding front shell; 50 lower seed cleaning device support plate; 51 inner notch; 52 center screw; 53 vacuum chamber; 54 seed taking notch; 55 seed stirring groove; 5501 arc-shaped groove surface; 5502 inclined groove surface; 56 seed suction hole; 57 concave curve slot. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0038] In the following description, specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in a variety of other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] like Figures 1 to 8 As shown, the air-suction type peanut flexible high-speed precision seeding device of the present invention comprises a primary seeding device and a secondary seeding device, and the secondary seeding device is connected to the bottom of the primary seeding device.

[0040] The one-time seeding device includes a one-time seeding front shell 49, a one-time seeding rear shell 18 and a seeding disk 13. The one-time seeding front shell 49 and the one-time seeding rear shell 18 are fixedly connected by bolts. A cylindrical chamber is formed between the one-time seeding front shell 49 and the one-time seeding rear shell 18. The seeding disk 13 is arranged in the cylindrical chamber. An upper seed cleaning mechanism, a lower seed cleaning mechanism and a flexible seed partition plate 9 are provided between the one-time seeding front shell 49 and the seeding disk 13. A sealing gasket 14, a negative pressure shell assembly 16 and a flexible seed unloading mechanism are provided between the seeding disk 13 and the one-time seeding rear shell 18.

[0041] A barrel-shaped seeding channel 1 is provided on the upper part of the outer surface of the housing 49 before seeding once, and a seeding port is provided at the bottom of the seeding channel 1, which is connected to the cylindrical chamber of the housing before seeding once. Figure 3 As shown, a seed inlet adjustment plate 14 is provided at the seed inlet on the inner surface of the housing 49 before seeding once, and the seed inlet adjustment plate 14 includes an upper and lower adjustment plate 1401, a baffle 1402 and an upper and lower adjustment mechanism, a slide groove with a certain width is provided between the upper and lower adjustment plate 1401 and the baffle 1402, the baffle 1402 is located directly in front of the seed inlet, the upper and lower adjustment plate 1401 is connected to the upper and lower adjustment mechanism, and an integrated structure is formed between the upper and lower adjustment plate 1401 and the baffle 1402. A plurality of vertical slide rails are provided on the inner surface of the housing 49 before seeding once, and the upper and lower adjustment plates 1401 and the baffle 1402 are respectively located between the vertical slide rails. In this embodiment, three vertical slide rails are included, namely vertical slide rail I 1403, vertical slide rail II 1404 and vertical slide rail III 1405, wherein slide rail II 1404 and slide rail III 1405 are located on the left and right sides of the seed inlet, the upper and lower adjustment plates 1401 are slidably arranged between the slide rail I 1403 and the slide rail II 1404, and the baffle plate 1402 is slidably arranged between the slide rail II 1404 and the slide rail III 1405. Under the adjustment of the upper and lower adjustment mechanism, the upper and lower adjustment plates 1404 drive the baffle plate 1402 to slide up and down along the vertical slide rails, and the baffle plate 1402 controls the size of the seed inlet, thereby flexibly adjusting the amount of peanut seeds fed.

[0042] The up-down adjustment mechanism includes a vertical adjustment baffle notch 40 located on the housing before the first seeding and a seed inlet adjustment rod 43 located in the adjustment baffle notch 40. The seed inlet adjustment rod 43 can slide up and down in the adjustment baffle notch 40. The seed inlet adjustment pointer 41, the seed inlet adjustment spring 42 and the seed inlet adjustment nut 44 are sequentially sleeved on the seed inlet adjustment rod 43 from the inside to the outside, and a dial 39 is correspondingly provided on the outer side wall of the housing before the first seeding to display the height of the seed inlet adjustment rod 43. The seed inlet adjustment nut 44 is fixedly connected to the seed inlet adjustment rod 43 by a threaded connection. During the process of tightening the seed inlet adjustment nut 44, the seed inlet adjustment spring 42 and the seed inlet adjustment pointer 41 are pressed between the seed inlet adjustment nut 44 and the housing before the first seeding, and the position of the seed inlet adjustment rod 43 is fixed under the elastic force of the seed inlet adjustment spring 42. When the height of the seed inlet adjustment plate 14 needs to be adjusted, the seed inlet adjustment pointer 41 is pulled outward, so that the seed inlet adjustment spring 42 between the seed inlet adjustment pointer 41 and the seed inlet adjustment nut 44 is compressed again. At this time, the elastic force of the seed inlet adjustment spring 42 cannot act on the housing before the first seeding. The seed inlet adjustment rod 43 is pulled up or pushed down by the seed inlet adjustment pointer 41. The seed inlet adjustment rod 43 slides up and down in the adjustment baffle notch 40, driving the seed inlet adjustment plate 14 to move up and down, thereby adjusting the size of the seed inlet, thereby achieving accurate adjustment of the amount of peanut seeds fed. After adjusting to the specified height, the seed inlet adjustment pointer 41 is released, and the fixed connection between the seed inlet adjustment plate 14 and the housing before the first seeding is automatically achieved under the elastic force of the seed inlet adjustment spring 42.

[0043] The upper seed cleaning mechanism is located at the top of the housing 49 before seeding, and the lower seed cleaning mechanism is located below the upper seed cleaning mechanism. The upper seed cleaning mechanism includes an adjustment plate 5 and an upper seed cleaning arc plate 6. The adjustment plate 5 is fixed to the top of the housing 49 before seeding. The adjustment plate 5 is provided with an adjustment groove arranged along the radial direction of the housing before seeding. The bottom of the upper seed cleaning arc plate 6 is fixed with an upper seed cleaning arc brush 8. The upper seed cleaning arc brush 8 is located in the cylindrical chamber and on the front side of the seeding disk. The two ends of the upper seed cleaning arc plate 6 are respectively connected to the two fixed seats 7 fixed to the top of the housing before seeding through connecting rods. The fixed seat 7 is provided with a slide groove arranged along the radial direction of the housing before seeding. The connecting rods are all slidably arranged in the slide groove, realizing the sliding connection between the upper seed cleaning arc plate 6 and the fixed seat 7. The upper seed cleaning arc plate 6 can drive the upper seed cleaning arc brush 8 to reciprocate along the radial direction of the housing before seeding. The adjusting plate 5 and the upper cleaning seed arc plate 6 are connected by a screw rod, which passes through the adjusting slot of the adjusting plate 5 and the upper cleaning seed arc plate 6 respectively. The upper cleaning seed adjusting pointer 3, spring I4 and nut I2 are sequentially sleeved on the screw rod from the inside to the outside. The nut I2 is tightened to generate elastic force in the spring I4. The upper cleaning seed arc plate 6 is pressed against the adjusting plate 5 by the elastic force of the spring I4, so as to realize the fixed connection between the upper cleaning seed arc plate 6 and the adjusting plate 5. When it is necessary to adjust the position of the upper cleaning seed arc brush 8, the upper cleaning seed adjusting pointer 3 is pulled to compress the spring I4 between the upper cleaning seed adjusting pointer 3 and the nut I2 again. At this time, the elastic force of the spring I4 cannot act on the upper cleaning seed arc plate 6. The upper cleaning seed adjusting pointer 3 is pulled upward or pushed downward. During the process of the screw rod sliding up and down in the adjusting slot, the upper cleaning seed arc plate 6 and the upper cleaning seed arc brush 8 are driven to move radially along the shell before one seeding.

[0044] The lower seed cleaning mechanism comprises a lower seed cleaning annular plate 11, and a lower seed cleaning annular brush 12 is provided on the side of the lower seed cleaning annular plate 11 facing the seeding disc, and the lower seed cleaning annular brush 12 is located below the upper seed cleaning arc brush 8. A central screw 52 is fixed to the side of the lower seed cleaning annular plate 11 facing the housing before the first seeding, and a lower seed cleaning device support plate 50 is fixed to the top of the inner wall of the housing before the first seeding, and a radial inner notch 51 is provided on the lower seed cleaning device support plate, and a lower seed cleaning device notch 45 is provided on the housing before the first seeding correspondingly, and the end of the central screw 52 passes through the inner notch 51 and the lower seed cleaning device notch 45 in sequence, and is located on the outer side of the housing before the first seeding, and the lower seed cleaning adjustment pointer 46, the lower seed cleaning adjustment spring 47 and the lower seed cleaning adjustment nut 48 are arranged in sequence from the inside to the outside at the end of the central screw on this side, and the central screw can slide radially along the inner notch 51 and the lower seed cleaning device notch 45. Tighten the lower seed cleaning adjustment nut 48, and use the elastic force in the lower seed cleaning adjustment spring 47 to achieve a fixed connection between the lower seed cleaning annular plate 11 with the central screw and the one-time seeding front housing. When it is necessary to adjust the position of the lower seed cleaning annular brush 12, pull the lower seed cleaning adjustment pointer 46 to compress the lower seed cleaning adjustment spring 47 between the lower seed cleaning adjustment pointer 46 and the lower seed cleaning adjustment nut 48 again. At this time, the elastic force of the lower seed cleaning adjustment spring 47 cannot act on the one-time seeding front housing. The lower seed cleaning adjustment pointer 46 pulls up or pushes down the central screw 52. During the radial sliding process of the central screw in the inner notch 51 and the lower seed cleaning device notch 45, the lower seed cleaning annular brush 12 is driven to move radially along the one-time seeding front housing.

[0045] By setting up the upper seed cleaning mechanism and the lower seed cleaning mechanism, the phenomenon of reseeding caused by multiple suctions from one hole can be further avoided in some cases. At the same time, the upper seed cleaning mechanism and the lower seed cleaning mechanism use flexible brushes in the contact part with the seeds, which can effectively reduce the damage to the peanut red skin and ensure a high germination rate.

[0046] like Figure 2 As shown, according to the working process from seeds entering the cylindrical chamber to being discharged from the seeding disc, the cylindrical chamber is divided into a seed filling area I, a self-cleaning area II, a forced seed cleaning area III, a seed carrying area IV and a seed throwing area V along the rotation direction of the seeding disc 13, wherein the seed filling area I is located near the seed inlet, i.e., the bottom of one side of the cylindrical chamber, and the seed throwing area V is located above the secondary seed throwing device, i.e., the bottom of the other side of the cylindrical chamber. A flexible seed separation baffle 9 is provided between the forced seed cleaning III and the seed carrying area IV, and the flexible seed separation baffle 9 includes a vertically connected fixed plate 901 and a seed separation hole plate 902, and the upper and lower ends of the fixed plate 901 are respectively fixedly connected to the primary seeding front housing 49 by bolts, and a plurality of square notches are arranged on the seed separation hole plate 902 at intervals, which can effectively prevent the peanut seeds in the seed filling area I, the self-cleaning area II and the forced seed cleaning area III from falling into the seed throwing area V to cause the problem of reseeding, and at the same time, the selection of flexible materials avoids damage to the peanut seeds.

[0047] like Figure 6 and Figure 7 As shown, the seeding disc 13 is an annular disc, and a seeding shaft 15 is fixed at the center of the seeding disc 13, and the seeding shaft 15 drives the seeding disc 13 to rotate. The circumferential surface of the housing 49 of the seeding disc 13 facing the first seeding is provided with seeding notches 54 and seed stirring grooves 55 from the outside to the inside. Several seeding notches 54 are evenly spaced along the edge of the circumferential surface of the seeding disc 13, and the seed stirring grooves 55 are arranged one by one with the seeding notches 54, that is, the inner side of the annular surface of each seeding notch 54 is provided with a seed stirring groove 55.

[0048] Each seed taking slot 54 is provided with a seed suction hole 56, and an elongated vacuum suction cup 37 is provided along the annular outer side of the seed suction hole 56. The elongated vacuum suction cup 37 is located in the seed taking slot 54, which can further improve the adsorption capacity of the seed suction hole and form a coating on the seeds under the action of negative pressure. The width of the seed taking slot 54 can only allow one seed, which structurally avoids the phenomenon of multiple suctions in one hole. The side wall of one side of the seed taking slot 54 forms an angle of 60° with the bottom surface of the seed taking slot 54, and the other side wall of the corresponding seed taking slot is perpendicular to the bottom surface of the seed taking slot 54, so that the seeds can be planted smoothly.

[0049] The seed stirring groove 55 is in an arc shape, one end of which is connected to the seed taking slot 54. The depth of the seed taking slot 54 is lower than the height of the end of the seed stirring groove 55 connected thereto, that is, the end of the seed stirring groove 55 connected to the seed taking slot 54 is higher than the bottom surface of the seed taking slot 54, which can effectively support the seeds during the seed carrying process, further reduce power consumption, and avoid the phenomenon of missing seeds caused by insufficient suction. The edges of each part of the seed stirring groove 55 are chamfered, which improves the mobility of the seed population during the seed filling process, and enables the internal seed population to form a stable and orderly seed flow, thereby enhancing the seed filling effect. The groove surface of the seed stirring groove 55 is composed of two parts, namely, an arc-shaped groove surface 5501 and an inclined surface 5502. The arc-shaped groove surface 5501 and the inclined surface 5502 intersect at the bottom of the seed stirring groove 55. The semi-arc surface and semi-inclined surface design of the groove surface can ensure effective guidance of peanut seeds with different movement forms, so that they can flow smoothly into the seed taking slot from the inner side to the outer edge of the seed discharging disk along the curve of the seed stirring groove. The outer side of the seed stirring groove 55 is provided with a concave curve card groove 57 with the same curvature as the seed stirring groove. An anti-collision rubber strip 37 is installed in the concave curve card groove 57. The anti-collision rubber strip 37 can further improve the disturbance effect on the seed population during the seed filling process and enhance the mobility of the seed population. In this embodiment, the anti-collision rubber strip and the long vacuum suction cup are made of flexible materials with buffering effects such as rubber and silicone, which can effectively solve the problem of easy damage of peanut seeds under high-speed operation.

[0050] A triangular support ring is provided in the middle of the inner side surface of the shell 18 after one sowing, and bolt holes are provided at the three top ends of the support ring respectively. The bolts in the bolt holes realize the fixed connection between the shell and the negative pressure shell assembly 16 after one sowing. A horseshoe-shaped vacuum chamber 53 is provided along the annular circumference of the inner side surface of the shell after one sowing, and the horseshoe-shaped vacuum chamber 53 is provided corresponding to the seed suction hole on the circumferential edge of the seeding disk. A sealing gasket 14 is provided at the horseshoe-shaped vacuum chamber 53. A through hole is provided on the shell 18 after one sowing corresponding to the top end of the horseshoe-shaped vacuum chamber, and the through hole and the outer welding pipe mouth form an air inlet 17. The triangular support ring is connected to the annular side wall of the horseshoe-shaped vacuum chamber outside it by a reinforcing rib.

[0051] A fixed frame 19 is provided at the lower part of the inner side of the housing after one seeding, and a flexible seed unloading mechanism is provided at the fixed frame 19. The flexible seed unloading mechanism includes a seed unloading wheel connecting rod 21 and a seed unloading wheel 22. One end of the seed unloading wheel connecting rod 21 is hinged to the fixed frame 19, and the bottom of the other end of the seed unloading wheel connecting rod 21 is rotatably provided with a flexible seed unloading wheel 22. In this embodiment, the flexible seed unloading wheel 27 is made of rubber material, and several raised column teeth are evenly spaced along the circumferential direction of the flexible seed unloading wheel 22. In this embodiment, three raised column teeth are spaced on the flexible seed unloading wheel 22, and the end faces of the column teeth are all rounded, and the raised column teeth are correspondingly inserted into the seed suction type hole 56. The middle part of the seed unloading wheel connecting rod 21 is connected to the inner side of the housing 18 after one seeding through a spring II20. During the rotation of the seed disc 13, the contact between the seed disc 13 and the raised column teeth drives the flexible seed unloading wheel 22 to rotate. By reasonably setting the spacing between the raised column teeth, it is ensured that when each seed suction hole passes through the flexible seed unloading mechanism, there is a corresponding raised column tooth inserted into the seed suction hole, thereby clearing the peanuts and remaining debris in the seed suction hole, avoiding clogging of the suction hole and affecting the overall seeding effect.

[0052] In this embodiment, the sealing gasket is made of a friction-reducing self-lubricating material such as rubber, nylon, and polytetrafluoroethylene, and the anti-collision rubber strip and the long vacuum suction cup are made of a flexible material with a buffering effect such as rubber and silicone.

[0053] The bottom of the housing 49 before primary seeding is provided with an arc-shaped notch, the top of the seeding port fixing frame 36 is connected to the bottom of the housing 49 before primary seeding by bolts, and the bottom end of the seeding port fixing frame 36 is fixedly connected to the secondary seeding device by bolts.

[0054] like Figure 1As shown, the secondary seeding device includes a secondary seeding front housing 33 and a secondary seeding rear housing 25, and the secondary seeding front housing 33 and the secondary seeding rear housing 25 are fixedly connected by bolts, so that a secondary seeding cavity is formed between the secondary seeding front housing 33 and the secondary seeding rear housing 25, and a secondary seeding port is formed at the bottom of the secondary seeding front housing 33 and the secondary seeding rear housing 25. In the secondary seeding cavity, two upper and lower synchronous pulleys and a synchronous belt 30 wound on the synchronous pulley are arranged in the height direction. Several spoon-shaped fingers 31 are arranged at intervals on the synchronous belt 30, and the spoon-shaped fingers 31 realize inoculation and secondary seeding. A rotating shaft Ⅰ23 is fixed at the center of the upper synchronous pulley, and the two ends of the rotating shaft Ⅰ23 are rotatably connected to the secondary seeding front housing 33 and the secondary seeding rear housing 25 through the bearing seat 24, and the two bearing seats 24 are fixedly connected to the secondary seeding front housing 33 and the secondary seeding rear housing 25 respectively. A rotating shaft II 28 is fixed at the center of the lower synchronous pulley 32, and the rotating shaft II 28 is rotatably connected to the secondary seeding front housing 33 and the secondary seeding rear housing 25 through a slider-type seated outer spherical bearing 27. The secondary seeding front housing 33 and the secondary seeding rear housing 25 are both provided with slots 29, and the two ends of the rotating shaft II 28 are respectively slidably arranged in the slots 29, and the slider-type seated outer spherical bearing 27 is respectively connected to the square seat 35 fixed in the middle of the secondary seeding front housing 33 and the secondary seeding rear housing 25 through a screw 26. In the present application, an internal thread is provided in the square seat 35, and the upper end of the screw 26 is connected to the square seat 35 through a threaded connection, and the lower end of the screw 26 is fixedly connected to the slider-type seated outer spherical bearing 27. Slide rail grooves 34 are respectively fixed to the secondary seeding front housing 33 and the secondary seeding rear housing 25 outside the slider-type seated outer spherical bearing 27, and the slider-type seated outer spherical bearing 27 can slide up and down in the slide rail grooves 34. When the tension of the synchronous belt 30 needs to be adjusted, the lead screw 26 is rotated. Through the threaded engagement between the lead screw 26 and the square seat 35, the lead screw 26 rotates and also drives the slider-type spherical outer bearing 27 to move up and down along the slide rail groove 34. The slider-type spherical outer bearing 27 drives the rotating shaft II 28 to move up and down in the groove 29, thereby adjusting the position of the lower synchronous pulley 32, thereby adjusting the tension of the synchronous belt 30.

[0055] The working principle of the present application is: when the seed meter is operating at high speed, the fan is connected to the air inlet of the seed meter through a hose, and the generated working negative pressure enters the vacuum chamber through the air inlet, and the driving motor drives the seed metering shaft to rotate, and the peanut seeds enter the seed filling area I through the seed feeding channel 1 to form a seed population accumulation. When the seed feeding amount needs to be adjusted, it is controlled by sliding the seed feeding port to adjust the baffle. The seeding disc rotates synchronously driven by the seeding shaft. Under the disturbance of the seed stirring groove and the protection of the anti-collision rubber strip, the seed population flows orderly along the groove to the seed taking slot. The peanut seeds falling into the seed taking slot are adsorbed on the seed suction hole under the action of negative pressure airflow. At the same time, the long vacuum suction cup covers the seeds under the action of negative pressure, which protects the seeds and enhances the adsorption capacity. The seeds rotate clockwise with the seeding disc. When it reaches the self-cleaning zone II, the peanut seeds that are not firmly adsorbed fall to the filling zone I under the action of gravity. When the excess seeds that have not fallen reach the forced seed cleaning III, they are cleaned down under the double-stage dual action of the upper seed cleaning arc brush and the lower seed cleaning ring brush, thereby ensuring single-hole and single-grain precision sowing. At the same time, due to the design of the flexible seed partition board, the cleaned seeds are effectively blocked from falling into the seeding zone V, avoiding the occurrence of reseeding. When the seeds rotate to the seeding area V with the seeding disc, with the blocking of the negative pressure airflow, the seeds fall vertically downward in a free fall state, and fall steadily and orderly into the spoon-shaped fingers of the secondary seeding device rotating at the same speed through the seeding port fixed frame. With the movement of the synchronous belt, the horizontal component speed of the seeds relative to the ground at the moment they fall into the seed bed is close to zero, and finally the high-speed precision seeding operation is completed. At the same time, after the peanut seeds fall through the seed suction holes, the raised column teeth on the flexible seed unloading wheel are respectively inserted into the seed suction holes to effectively remove the remaining debris and avoid the blockage of the suction holes, which affects the overall seeding effect.

[0056] The above is a detailed introduction to the air-suction peanut flexible high-speed precision seeding device provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in the technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention. The above description of the disclosed embodiments enables professionals and technicians in this field to implement or use the present invention. Various modifications to these embodiments will be obvious to professionals and technicians in this field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. An air suction type flexible high-speed precision seeding device for peanuts, characterized in that: It includes a primary seeding device and a secondary seeding device, wherein the secondary seeding device is connected to the bottom of the primary seeding device; The one-time seeding device comprises a one-time seeding front shell (49), a one-time seeding rear shell (18) and a seeding disc (13); the one-time seeding front shell (49) and the one-time seeding rear shell (18) are fixedly connected to form a cylindrical chamber; the seeding disc (13) is arranged in the cylindrical chamber; an upper seed cleaning mechanism, a lower seed cleaning mechanism and a flexible seed partition plate (9) are arranged between the one-time seeding front shell (49) and the seeding disc (13); and a sealing gasket (14), a negative pressure shell assembly (16) and a flexible seed unloading mechanism are arranged between the seeding disc (13) and the one-time seeding rear shell (18); The upper seed cleaning mechanism is located at the top of the housing (49) before the first seeding, and the lower seed cleaning mechanism is located below the upper seed cleaning mechanism. The upper seed cleaning mechanism comprises an adjustment plate (5) and an upper seed cleaning arc plate (6). The adjustment plate (5) is fixed to the top of the housing (49) before the first seeding, and an adjustment groove is provided on the adjustment plate (5) along the radial direction of the housing before the first seeding. An upper seed cleaning arc brush (8) is fixed to the bottom of the upper seed cleaning arc plate (6). The upper seed cleaning arc brush (8) is located in the cylindrical chamber and on the front side of the seeding disk. The two ends of the upper seed cleaning arc plate (6) are respectively slidably connected to two fixed holders (7) fixed to the top of the housing before the first seeding through connecting rods. The adjustment plate (5) and the upper seed cleaning arc plate (6) are connected by a screw rod, and the screw rod passes through the adjustment groove of the adjustment plate (5) and the upper seed cleaning arc plate (6) respectively. The screw rod is sequentially sleeved with an upper seed cleaning adjustment pointer (3), a spring I (4) and a nut I (2) from the inside to the outside. The lower seed cleaning mechanism comprises a lower seed cleaning annular plate (11), a lower seed cleaning annular brush (12) is provided on the side of the lower seed cleaning annular plate (11) facing the seed discharging plate, the lower seed cleaning annular brush (12) is located below the upper seed cleaning arc brush (8), a central screw (52) is fixed on the side of the lower seed cleaning annular plate (11) facing the shell body before the first seeding, a lower seed cleaning device support plate (50) is fixed on the top of the inner wall of the shell body before the first seeding, and a radial inner notch (51) is provided on the lower seed cleaning device support plate, corresponding to A lower seed cleaning device notch (45) is provided on the housing before the first seeding, the end of the central screw (52) passes through the inner notch (51) and the lower seed cleaning device notch (45) in sequence and is located outside the housing before the first seeding, a lower seed cleaning adjustment pointer (46), a lower seed cleaning adjustment spring (47) and a lower seed cleaning adjustment nut (48) are arranged in sequence from inside to outside at the outer end of the central screw located at the housing before the first seeding, and the central screw slides radially along the inner notch (51) and the lower seed cleaning device notch (45); The seeding disc (13) is an annular disc, a seeding rotating shaft (15) is fixed at the center of the seeding disc (13), and seed taking notches (54) and seed stirring grooves (55) are sequentially arranged from the outside to the inside on the circumferential surface of the shell (49) of the seeding disc (13) facing the first seeding, and a plurality of seed taking notches (54) are evenly spaced along the edge of the circumferential surface of the seeding disc (13), and a seed stirring groove (55) is respectively arranged on the annular inner side of each seed taking notch (54); A seed suction hole (56) is provided in each seed taking slot (54), and a long vacuum suction cup (37) is provided along the annular outer side of the seed suction hole (56). The long vacuum suction cup (37) is located in the seed taking slot (54), and a side wall of one side of the seed taking slot (54) and a bottom surface of the seed taking slot (54) form an angle of 60 degrees, and the other side wall of the corresponding seed taking slot is perpendicular to the bottom surface of the seed taking slot (54). The seed stirring groove (55) is in an arc shape, and the seed stirring groove (55) and the seed taking slot are connected to each other. The end portion connected to the opening (54) is higher than the bottom surface of the seed taking notch opening (54); the groove surface of the seed stirring groove (55) is composed of an arc-shaped groove surface (5501) and an inclined surface-shaped groove surface (5502); the arc-shaped groove surface (5501) and the inclined surface-shaped groove surface (5502) intersect at the bottom of the seed stirring groove (55); a concave curved groove (57) having the same curvature as the seed stirring groove is provided on the outer side of the seed stirring groove (55); and an anti-collision rubber strip (37) is installed in the concave curved groove (57).

2. The air suction type flexible high-speed precision seed metering device for peanuts according to claim 1 is characterized in that: A barrel-shaped seed inlet channel (1) is provided at the upper portion of the outer surface of the one-time seeding front shell (49), a seed inlet port is provided at the bottom of the seed inlet channel (1), and the seed inlet port is communicated with the cylindrical chamber of the one-time seeding front shell; a seed inlet port adjustment plate (14) is provided at the seed inlet port on the inner surface of the one-time seeding front shell (49), the seed inlet port adjustment plate (14) comprises an upper and lower adjustment plate (1401), a baffle plate (1402) and an upper and lower adjustment mechanism; a slide groove is provided between the upper and lower adjustment plates (1401) and the baffle plate (1402), the baffle plate (1402) is located directly in front of the seed inlet port, the upper and lower adjustment plates (1401) are connected to the upper and lower adjustment mechanism, and a plurality of vertical slide rails are provided on the inner surface of the one-time seeding front shell (49), and the upper and lower adjustment plates (1401) and the baffle plate (1402) are respectively slidably arranged between the vertical slide rails; The up-down adjustment mechanism comprises a vertical adjustment baffle notch (40) located on the housing before the first seeding and a seed inlet adjustment rod (43) located in the adjustment baffle notch (40); the seed inlet adjustment rod (43) slides up and down in the adjustment baffle notch (40); a seed inlet adjustment pointer (41), a seed inlet adjustment spring (42) and a seed inlet adjustment nut (44) are sequentially sleeved on the seed inlet adjustment rod (43) from the inside to the outside; and a scale plate (39) is correspondingly provided on the outer side wall of the housing before the first seeding.

3. The air suction type flexible high-speed precision seed metering device for peanuts according to claim 1, characterized in that: Along the rotation direction of the seeding disc (13), the cylindrical chamber is divided into a seed filling area I, a self-cleaning area II, a forced seed cleaning area III, a seed carrying area IV and a seed throwing area V in sequence. The seed throwing area V is located above the secondary seed throwing device. A flexible seed isolation baffle (9) is provided between the forced seed cleaning area III and the seed carrying area IV. The flexible seed isolation baffle (9) comprises a vertically connected fixed plate (901) and a seed isolation hole plate (902). The upper and lower ends of the fixed plate (901) are respectively fixedly connected to the primary seed throwing front shell (49). A plurality of square notches are arranged at intervals on the seed isolation hole plate (902).

4. The air suction type flexible high-speed precision seed metering device for peanuts according to claim 1, characterized in that: A triangular support ring is provided in the middle of the inner side surface of the shell (18) after the single seeding, and bolt holes are provided at the three top ends of the support ring respectively. The fixed connection between the shell and the negative pressure shell assembly (16) after the single seeding is achieved by bolts in the bolt holes. A horseshoe-shaped vacuum chamber (53) is provided along the annular circumference of the inner side surface of the shell after the single seeding. The horseshoe-shaped vacuum chamber (53) is arranged corresponding to the seed suction hole on the circumferential edge of the seeding disk. A sealing gasket (14) is provided at the horseshoe-shaped vacuum chamber (53). An air inlet (17) is provided on the shell (18) after the single seeding corresponding to the top end of the horseshoe-shaped vacuum chamber. The triangular support ring is connected to the annular side wall of the horseshoe-shaped vacuum chamber outside it by a reinforcing rib.

5. The air suction type flexible high-speed precision seed metering device for peanuts according to claim 1, characterized in that: A fixing frame (19) is provided at the lower part of the inner side surface of the shell after the single seeding, and a flexible seed unloading mechanism is provided at the fixing frame (19); the flexible seed unloading mechanism comprises a seed unloading wheel connecting rod (21) and a seed unloading wheel (22); one end of the seed unloading wheel connecting rod (21) is hinged to the fixing frame (19); the bottom of the other end of the seed unloading wheel connecting rod (21) is rotatably provided with a flexible seed unloading wheel (22); a plurality of raised column teeth are evenly spaced along the circumferential direction of the flexible seed unloading wheel (22); the raised column teeth are correspondingly inserted into the seed suction type holes (56); and the middle part of the seed unloading wheel connecting rod (21) is connected to the inner side surface of the shell after the single seeding through a spring II (20).

6. The air suction type flexible high-speed precision seed metering device for peanuts according to claim 1, characterized in that: The top end of the seed discharging port fixing frame (36) is fixedly connected to the bottom of the primary seeding front housing (49), and the bottom end of the seed discharging port fixing frame (36) is fixedly connected to the secondary seeding device.

7. The air suction type flexible high-speed precision seed metering device for peanuts according to claim 1, characterized in that: The secondary seeding device comprises a secondary seeding front housing (33) and a secondary seeding rear housing (25), the secondary seeding front housing (33) and the secondary seeding rear housing (25) are fixedly connected to form a secondary seeding cavity, and an upper and a lower synchronous pulley and a synchronous belt (30) matched with the synchronous pulley are arranged in the secondary seeding cavity along the height direction, and a plurality of spoon-shaped fingers (31) are arranged on the synchronous belt (30) at intervals, and a rotating shaft I (23) is fixed at the center of the upper synchronous pulley, and the rotating shaft I (23) is rotatably connected to the secondary seeding front housing (33) and the secondary seeding rear housing (25); A rotating shaft II (28) is fixed at the center of the lower synchronous pulley (32). The rotating shaft II (28) is rotatably connected to the secondary seeding front housing (33) and the secondary seeding rear housing (25) through a slider-type seated outer spherical bearing (27). The secondary seeding front housing (33) and the secondary seeding rear housing (25) are both provided with notches (29). The two ends of the rotating shaft II (28) are respectively slidably arranged in the notches (29). The top of the slider-type seated outer spherical bearing (27) is fixedly connected to the lead screw (26). The upper part of the lead screw (26) is threadedly connected to a square seat (35) fixed to the middle of the secondary seeding front housing (33) and the secondary seeding rear housing (25). Slide rail grooves (34) are respectively fixed on the secondary seeding front housing (33) and the secondary seeding rear housing (25) outside the slider-type seated outer spherical bearing (27). The slider-type seated outer spherical bearing (27) slides up and down in the slide rail grooves (34).

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