CN109601078B

CN109601078B - Anti-tilting device of seed sowing device

Info

Publication number: CN109601078B
Application number: CN201910038110.XA
Authority: CN
Inventors: 袁洪方; 张胜伟; 贾洪雷; 丛永健; 王刚; 赵佳乐; 郭慧; 朱金光; 张鹏
Original assignee: Jilin University
Current assignee: Jilin University
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2021-11-02
Anticipated expiration: 2039-01-16
Also published as: CN109601078A

Abstract

A seed metering device anti-tilting device belongs to the field of agricultural machinery, and a fixed rod is connected through a cylindrical pin on a front end cover; the spheres at the two sides of the outer rotating body are respectively connected with the spherical clamping grooves on the arc-shaped bosses at the two sides of the end cover in a sliding way; the four buffer spring groups have the same structure and connection mode, and two ends of the four buffer spring groups are respectively connected with the fixed rod and the outer rotating body through pin shafts; the four pulleys are consistent in structure, the upper pulley and the lower pulley are connected with the fixed rod through pin shafts and are in sliding connection with the inner side rail of the outer rotating body, and the left pulley and the right pulley are connected with the outer rotating body through pin shafts and are in sliding connection with the middle rail of the fixed rod; the two end holes of the connecting body are respectively connected through two cylindrical pins on the outer rotating body; the four counter bores on the rear end cover correspond to the four support rods on the front end cover respectively and are connected through four groups of pre-tightening spring groups respectively. The invention can make the seeding apparatus keep a vertical state in real time by the dead weight of the balancing weight, can effectively avoid the phenomena of seeding missing and rebroadcasting during the operation on hilly and sloping fields, and greatly improves the seeding quality.

Description

Anti-tilting device of seed sowing device

Technical Field

The invention belongs to the technical field of agricultural machinery, and particularly relates to a seed sowing device anti-tilting device suitable for hilly slope operation.

Background

The seeder is when hills area operation, because the slope in hills area leads to the whole horizontal tilt that can take place of seeder to the seed metering ware also can slope thereupon, influences the seed metering homogeneity of seed metering ware, leads to missing the seeding or reseeding, appears lacking the phenomenon of seedling or many seedlings, so the seeding quality of seeder can not obtain effectual assurance when hills slope operation. Therefore, the anti-tilting device of the seeding apparatus is designed, so that the seeder can keep the vertical state of the seeding apparatus in real time when operating on hilly slopes, and the anti-tilting device has great significance on seeding quality.

Disclosure of Invention

The invention aims to provide an anti-tilting device of a seed metering device, which is suitable for hilly slope operation, the device enables an outer rotating body to keep a vertical state in real time through the gravity of a balancing weight, and further drives a connecting body to rotate, so that the function of adjusting the seed metering device to keep the vertical state is realized, the phenomena of rebroadcasting and miss-seeding can be effectively avoided, and the seeding quality in hilly areas is greatly improved.

The invention is composed of an end cover A, a buffer spring group IB, an outer rotating body C, a fixed rod D, a buffer spring group IIE, a buffer spring group IIIF, a buffer spring group IV G, a pre-tightening spring group IH, a connector I, a pre-tightening spring group IIJ, a pre-tightening spring group III K, a pre-tightening spring group IV L, a pulley I1, a pulley II 2, a balancing weight 3, a pulley III 4 and a pulley IV 5, wherein the fixed rod D is arranged in a circular ring C1 of the outer rotating body C, and the pulley I1 is movably connected with an upper hole t of the fixed rod D through a pin shaft; the pulley III 4 is movably connected with the lower hole y of the fixed rod D through a pin shaft; the pulley II 2 is movably connected with a hole VII n of a right base C2 in the outer rotor C through a pin shaft; the pulley IV 5 is movably connected with a hole IX q of a left base C4 in the outer rotor C through a pin shaft; the thick rod end of the buffer spring group IB is connected with a hole XR of a left base C4 in the outer rotating body C through a pin shaft, and the thin rod end of the buffer spring group IB is connected with a hole Is of the fixed rod D through a pin shaft; the thick rod end of the buffer spring group II E is connected with a hole Vk of a right base C2 in the outer rotating body C through a pin shaft, and the thin rod end of the buffer spring group II E is connected with a hole IIu of the fixed rod D through a pin shaft; the thick rod end of the buffer spring group IIIF is connected with a hole VI m of a right base C2 in the outer rotating body C through a pin shaft, and the thin rod end of the buffer spring group IIE is connected with a hole III x of the fixed rod D through a pin shaft; the thick rod end of the buffer spring group IV G is connected with a hole VIII o of a left base C4 in the outer rotating body C through a pin shaft, and the thin rod end of the buffer spring group II E is connected with a hole IV z of the fixed rod D through a pin shaft; the sphere II 16 of the outer rotating body C is in sliding connection with the spherical clamping groove group II h of the front end cover A1 in the end cover A and 25 spherical clamping grooves of the spherical clamping groove group IV 33 in the rear end cover A2; the sphere I12 of the outer rotating body C is in sliding connection with the spherical clamping groove group id of the front end cover A1 in the end cover A and 25 spherical clamping grooves of the spherical clamping groove group III 36 in the rear end cover A2; a main body I1 of the connector I penetrates through a center hole IA 3 of a rear end cover A2 in an end cover A, and a left end hole 22 and a right end hole 23 of the connector I respectively penetrate through a cylindrical pin IVp and a cylindrical pin IIIl in an outer rotating body C; the pulley I1 and the pulley III 4 are respectively connected with a track I13 of the outer rotating body C in a sliding manner, and the pulley II 2 and the pulley IV 5 are respectively connected with a track II 18 of the fixed rod D in a sliding manner; a left end hole 22 and a right end hole 23 of the connecting body I are correspondingly connected with a cylindrical pin IVp and a cylindrical pin III of the outer rotating body C respectively, and a right hole 26 and a left hole 28 on a connecting plate 25 are used for connecting a rod piece so as to be connected with a seed metering device; the counter bore I30, the counter bore II 31, the counter bore III 34 and the counter bore IV 35 of the rear end cover A2 correspond to the support rod IIc, the support rod Ia, the support rod IVg and the support rod IIIe of the front end cover A1 respectively and are connected with four screws on the pre-tightening spring group IH, the pre-tightening spring group IIJ, the pre-tightening spring group IIIK and the pre-tightening spring group IV L respectively; the balancing weight 3 is connected with a cylindrical pin V14 and a cylindrical pin VI 15 of the outer rotating body C.

The end cover A consists of a front end cover A1 and a rear end cover A2, wherein the front end cover A1 is circular, the rear near edge of the front end cover A is fixedly connected and uniformly distributed with a support rod Ia, a support rod IIc, a support rod IIIe and a support rod IVg, the rear end of each support rod is provided with a threaded blind hole, the central line of the rear of the front end cover A1 is vertically and symmetrically fixedly connected with a cylindrical pin Ib and a cylindrical pin IIf, the left side and the right side of the rear of the front end cover A1 are symmetrically provided with an arc-shaped boss I6 and an arc-shaped boss II 7, the arc-shaped boss I6 is provided with a spherical clamping groove group Id consisting of 25 spherical clamping grooves, and the arc-shaped boss II 7 is provided with a spherical clamping groove group IIh consisting of 25 spherical clamping grooves; the rear end cover A2 is circular, the rear end cover A2 is provided with a center hole IA 3, the edge near the front face of the rear end cover A2 is provided with a counter bore I30, a counter bore II 31, a counter bore III 34 and a counter bore IV 35 which are uniformly distributed, the left side and the right side of the front face of the rear end cover A2 are symmetrically provided with an arc-shaped boss IV 32 and an arc-shaped boss III 29, the arc-shaped boss III 29 is provided with a spherical clamping groove group III 36 consisting of 25 spherical clamping grooves, the arc-shaped boss IV 32 is provided with a spherical clamping groove group IV 33 consisting of 25 spherical clamping grooves, the radius of each spherical clamping groove is 4mm, the depth is 2mm, the centers of the front end cover A1 and the rear end cover A2 are the original point, and the included angle between the centers of the two adjacent spherical clamping grooves and the original point is 1 degree; the arc boss I6, the arc boss II 7, the arc boss III 29 and the arc boss IV 32 are identical in shape, the arc radiuses are all 102-118mm, and the arc angles are all 26 degrees.

Buffer spring group IB, buffer spring group IIE, buffer spring group IIIF, buffer spring group IV G structure identical, by buffer spring 8, thick compression pole 9 and thin compression pole 10 are constituteed, thick compression pole 9 outer end is equipped with porose II, thin compression pole 10 outer end is equipped with porose II j, thick compression pole 9 and thin compression pole 10 inner rigid coupling, buffer spring 8 wears in thick compression pole 9 and thin compression pole 10, buffer spring 8 both ends are fixed a position by the baffle on thick compression pole 9 and the thin compression pole 10 respectively.

The outer rotator C consists of a circular ring C1, a right base C2, a vertical plate C3, a left base C4, a cylindrical pin III, a cylindrical pin IVp, a cylindrical bayonet lock I11, a sphere I12, a cylindrical pin V14, a cylindrical pin VI 15, a sphere II 16 and a cylindrical bayonet lock II 17, wherein the left base C4 is fixedly connected to the left side of the inner ring of the circular ring C1, the right base C2 is fixedly connected to the right side of the inner ring of the circular ring C1, and the vertical plate C3 is fixedly connected to the lower end of the outer ring of the circular ring C1; the left end of the right base C2 is provided with a pair hole VIIn, the right base C2 is provided with a pair hole Vk and a pair hole VI m in an up-down symmetrical manner, a cylindrical pin III is fixedly connected to the center of the right base C2, and a sphere I12 is fixedly connected to the right end of the right base C2 through a cylindrical pin I11; the right end of the left base C4 is provided with a pair of holes IX q, the left base C4 is vertically and symmetrically provided with a pair of holes XR and a pair of holes VIII o, a cylindrical pin IVp is fixedly connected to the center of the left base C4, and a sphere II 16 is fixedly connected to the left end of the left base C4 through a cylindrical pin II 17; the cylindrical pin V14 and the cylindrical pin VI 15 are symmetrically and fixedly connected to the lower part of the vertical plate C3; the inner circle of the circular ring C1 is provided with a track I13.

The fixed rod D is provided with a central hole IID 1, the upper part of the fixed rod D is provided with a pair of holes Is, an upper hole t, a pair of holes IIu and a central hole IV, wherein the pair of holes Is and the pair of holes IIu are symmetrically arranged around the central line of the fixed rod D; the lower part of the fixed rod D is provided with a pair of holes IV z, a lower hole y, a pair of holes III x and a middle hole IIw, wherein the pair of holes IV z and the pair of holes III x are symmetrically arranged around the central line of the fixed rod D; the upper hole t, the middle hole IV, the middle hole IIw and the lower hole y are positioned on the central line of the fixed rod D; and a track II 18 is arranged in the middle of the fixed rod D.

The structure of the pre-tightening spring group IH, the structure of the pre-tightening spring group IIJ, the structure of the pre-tightening spring group IIIK and the structure of the pre-tightening spring group IVL are completely the same and are respectively composed of a screw 19, a pre-tightening spring 20 and a pressing sheet 21, the pre-tightening spring 20 and the pressing sheet 21 are sequentially sleeved on the screw 19, and one end of the pressing sheet 21 is limited by the screw 19.

The connector I comprises main part I1, front bezel I2, bolt I24, back plate 25 and bolt II 27, front bezel I2 rigid coupling is in main part I1 front end, back plate 25 through bolt I24 and bolt II 27 rigid coupling in main part I1 rear end, front bezel I2 bilateral symmetry is equipped with left end hole 22 and right end hole 23, back plate 25 bilateral symmetry is equipped with right hole 26 and left hole 28.

The invention can adjust the seed sowing device in real time in the seeding machine operating in hilly areas to keep the seed sowing device in a vertical state, effectively avoids the phenomena of seeding missing and reseeding, and greatly improves the seeding quality.

Drawings

FIG. 1 is a front view of an internal structure

FIG. 2 is an isometric view of the overall structure

FIG. 3 is an isometric view of the front end cap

FIG. 4 is a schematic view of a buffer spring set

FIG. 5 is an isometric view of the outer rotor

FIG. 6 is an isometric view of a fixed rod

FIG. 7 is a schematic view of the structure of a pre-tightening spring set

FIG. 8 is a schematic view of the structure of the connector

FIG. 9 is an isometric view of the rear end cap

FIG. 10 is a front view of an arcuate boss

FIG. 11 is a cross-sectional view of a pulley

FIG. 12 is a side view of the grading work

FIG. 13 is a schematic diagram of adjustment for a slope (left tilt) operation

FIG. 14 is a schematic diagram of adjustment for a slope (right tilt) operation

Wherein: A. end cap A1, front end cap A2, rear end cap A3, center hole IB, buffer spring group IC, outer rotating body C1, ring C2., right base C3. vertical plate C4, left base D, fixed rod D1, center hole IIE, buffer spring group IIF, buffer spring group III G, buffer spring group IV H, pre-tightening spring group I, connector I1. main body I2, front plate J, pre-tightening spring group II K, pre-tightening spring group III L, pre-tightening spring group IV 1, pulley I2, pulley II 3, counter weight 4, pulley IV 6, arc boss I7, arc boss II 8, buffer spring 9, coarse compression rod 10, fine compression rod 11, cylinder I12, ball I13, track I14, cylinder pin V15, cylinder pin VI 16, ball II 17, cylinder block II 18, track II 19, pre-tightening spring 21, pressing piece 22, left end hole 23, bolt 25, bolt hole 27, screw bolt 26, right end cap IV 30, counter bore 29, counter bore III, 31, counter bore III

counter bore

35, 31, 35 counter bore, 35 counter bore, 31, 35 counter bore, 31, counter bore, counter A counter bore iva, a support bar ib, a cylindrical pin ic, a support bar iid, a spherical clamping groove ie, a support bar iii f, a cylindrical pin ig, a support bar ivh, a spherical clamping groove iii, a hole ij, a hole iik, a hole vl, a cylindrical pin iiim, a hole vi, a hole vii, a hole viii p, a cylindrical pin ivq, a hole ix, an x, a hole i, a hole iv, a hole iiv, a hole iw, a hole z., a hole iv, a hole iiv, a hole iik, a hole iv, a hole iii y., a hole iv, a hole

Detailed Description

The invention is described below with reference to the accompanying drawings

As shown in fig. 1 and 2, the present invention comprises an end cap a, a buffer spring group ib, an outer rotor C, a fixed rod D, a buffer spring group ii E, a buffer spring group iii F, a buffer spring group iv G, a pre-tightening spring group ih, a connector I, a pre-tightening spring group ii J, a pre-tightening spring group iii K, a pre-tightening spring group iv L, a pulley I1, a pulley ii 2, a counterweight 3, a pulley iii 4, and a pulley iv 5, wherein the fixed rod D is disposed in a ring C1 of the outer rotor C, and the pulley I1 is movably connected with an upper hole t of the fixed rod D through a pin shaft; the pulley III 4 is movably connected with the lower hole y of the fixed rod D through a pin shaft; the pulley II 2 is movably connected with a hole VII n of a right base C2 in the outer rotor C through a pin shaft; the pulley IV 5 is movably connected with a hole IX q of a left base C4 in the outer rotor C through a pin shaft; the thick rod end of the buffer spring group IB is connected with a hole XR of a left base C4 in the outer rotating body C through a pin shaft, and the thin rod end of the buffer spring group IB is connected with a hole Is of the fixed rod D through a pin shaft; the thick rod end of the buffer spring group II E is connected with a hole Vk of a right base C2 in the outer rotating body C through a pin shaft, and the thin rod end of the buffer spring group II E is connected with a hole IIu of the fixed rod D through a pin shaft; the thick rod end of the buffer spring group IIIF is connected with a hole VI m of a right base C2 in the outer rotating body C through a pin shaft, and the thin rod end of the buffer spring group IIE is connected with a hole III x of the fixed rod D through a pin shaft; the thick rod end of the buffer spring group IV G is connected with a hole VIII o of a left base C4 in the outer rotating body C through a pin shaft, and the thin rod end of the buffer spring group II E is connected with a hole IV z of the fixed rod D through a pin shaft; the sphere II 16 of the outer rotating body C is in sliding connection with the spherical clamping groove group II h of the front end cover A1 in the end cover A and 25 spherical clamping grooves of the spherical clamping groove group IV 33 in the rear end cover A2; the sphere I12 of the outer rotating body C is in sliding connection with the spherical clamping groove group id of the front end cover A1 in the end cover A and 25 spherical clamping grooves of the spherical clamping groove group III 36 in the rear end cover A2; a main body I1 of the connector I penetrates through a center hole IA 3 of a rear end cover A2 in an end cover A, and a left end hole 22 and a right end hole 23 of the connector I respectively penetrate through a cylindrical pin IVp and a cylindrical pin IIIl in an outer rotating body C; the pulley I1 and the pulley III 4 are respectively connected with a track I13 of the outer rotating body C in a sliding manner, and the pulley II 2 and the pulley IV 5 are respectively connected with a track II 18 of the fixed rod D in a sliding manner; a left end hole 22 and a right end hole 23 of the connecting body I are correspondingly connected with a cylindrical pin IVp and a cylindrical pin III of the outer rotating body C respectively, and a right hole 26 and a left hole 28 on a connecting plate 25 are used for connecting a rod piece so as to be connected with a seed metering device; the counter bore I30, the counter bore II 31, the counter bore III 34 and the counter bore IV 35 of the rear end cover A2 correspond to the support rod IIc, the support rod Ia, the support rod IVg and the support rod IIIe of the front end cover A1 respectively and are connected with four screws on the pre-tightening spring group IH, the pre-tightening spring group IIJ, the pre-tightening spring group IIIK and the pre-tightening spring group IV L respectively; the balancing weight 3 is connected with a cylindrical pin V14 and a cylindrical pin VI 15 of the outer rotating body C.

As shown in fig. 3, 9 and 10, the end cap a is composed of a front end cap a1 and a rear end cap a2, wherein the front end cap a1 is circular, a support rod ia, a support rod iic, a support rod mie and a support rod ivg are fixedly connected to the rear near edge of the front end cap, the rear ends of the support rods are respectively provided with a threaded blind hole, a cylindrical pin ib and a cylindrical pin iif are fixedly connected to the rear central line of the front end cap a1 in a vertically symmetrical manner, an arc boss i 6 and an arc boss ii 7 are symmetrically arranged on the left side and the right side of the rear of the front end cap a1, a spherical clamping groove group id composed of 25 spherical clamping grooves is arranged on the arc boss i 6, and a spherical clamping groove group ih composed of 25 spherical clamping grooves is arranged on the arc boss ii 7; the rear end cover A2 is circular, the rear end cover A2 is provided with a center hole IA 3, the edge near the front face of the rear end cover A2 is provided with a counter bore I30, a counter bore II 31, a counter bore III 34 and a counter bore IV 35 which are uniformly distributed, the left side and the right side of the front face of the rear end cover A2 are symmetrically provided with an arc-shaped boss IV 32 and an arc-shaped boss III 29, the arc-shaped boss III 29 is provided with a spherical clamping groove group III 36 consisting of 25 spherical clamping grooves, the arc-shaped boss IV 32 is provided with a spherical clamping groove group IV 33 consisting of 25 spherical clamping grooves, the radius of each spherical clamping groove is 4mm, the depth is 2mm, the centers of the front end cover A1 and the rear end cover A2 are the original point, and the included angle between the centers of the two adjacent spherical clamping grooves and the original point is 1 degree; the arc boss I6, the arc boss II 7, the arc boss III 29 and the arc boss IV 32 are identical in shape, the arc radiuses are all 102-118mm, and the arc angles are all 26 degrees.

As shown in fig. 4, the buffer spring group ib, the buffer spring group iie, the buffer spring group iiif and the buffer spring group ivg have the same structure and are composed of a buffer spring 8, a coarse compression rod 9 and a fine compression rod 10, the outer end of the coarse compression rod 9 is provided with a hole ii, the outer end of the fine compression rod 10 is provided with a hole ij, the inner ends of the coarse compression rod 9 and the fine compression rod 10 are fixedly connected, the buffer spring 8 penetrates through the coarse compression rod 9 and the fine compression rod 10, and two ends of the buffer spring 8 are respectively positioned by baffles on the coarse compression rod 9 and the fine compression rod 10.

As shown in fig. 5, the outer rotator C comprises a ring C1, a right base C2, a vertical plate C3, a left base C4, a cylindrical pin ill, a cylindrical pin iv p, a cylindrical pin i 11, a sphere i 12, a cylindrical pin v 14, a cylindrical pin vi 15, a sphere ii 16 and a cylindrical pin ii 17, the left base C4 is fixedly connected to the left side of the inner ring of the ring C1, the right base C2 is fixedly connected to the right side of the inner ring of the ring C1, and the vertical plate C3 is fixedly connected to the lower end of the outer ring of the ring C1; the left end of the right base C2 is provided with a pair hole VIIn, the right base C2 is provided with a pair hole Vk and a pair hole VI m in an up-down symmetrical manner, a cylindrical pin III is fixedly connected to the center of the right base C2, and a sphere I12 is fixedly connected to the right end of the right base C2 through a cylindrical pin I11; the right end of the left base C4 is provided with a pair of holes IX q, the left base C4 is vertically and symmetrically provided with a pair of holes XR and a pair of holes VIII o, a cylindrical pin IVp is fixedly connected to the center of the left base C4, and a sphere II 16 is fixedly connected to the left end of the left base C4 through a cylindrical pin II 17; the cylindrical pin V14 and the cylindrical pin VI 15 are symmetrically and fixedly connected to the lower part of the vertical plate C3; the inner circle of the circular ring C1 is provided with a track I13.

As shown in fig. 6, the fixed rod D is provided with a central hole iid 1, the upper portion of the fixed rod D is provided with a pair of holes is, an upper hole t, a pair of holes ii u and a central hole iv, wherein the pair of holes is symmetrically arranged with respect to the central line of the fixed rod D; the lower part of the fixed rod D is provided with a pair of holes IV z, a lower hole y, a pair of holes III x and a middle hole IIw, wherein the pair of holes IV z and the pair of holes III x are symmetrically arranged around the central line of the fixed rod D; the upper hole t, the middle hole IV, the middle hole IIw and the lower hole y are positioned on the central line of the fixed rod D; and a track II 18 is arranged in the middle of the fixed rod D.

As shown in fig. 7, the pre-tightening spring set ih, the pre-tightening spring set ij, the pre-tightening spring set iiik and the pre-tightening spring set ivl have the same structure and are composed of a screw 19, a pre-tightening spring 20 and a pressing plate 21, the pre-tightening spring 20 and the pressing plate 21 are sequentially sleeved on the screw 19, and one end of the pressing plate 21 is limited by the screw 19.

As shown in fig. 8, the connector I comprises a main body I1, a front plate I2, a bolt I24, a rear plate 25 and a bolt ii 27, wherein the front plate I2 is fixedly connected to the front end of the main body I1, the rear plate 25 is fixedly connected to the rear end of the main body I1 through the bolt I24 and the bolt ii 27, the front plate I2 is provided with a left end hole 22 and a right end hole 23 in bilateral symmetry, and the rear plate 25 is provided with a right hole 26 and a left hole 28 in bilateral symmetry.

As shown in fig. 12 to 14, when the seeder works on a sloping field, the seeder tilts with the change of terrain, in the tilting process of the seeder, the counter weight 3 drives the outer rotor C to rotate in real time under the action of gravity, the connector I fixed on the outer rotor C drives the seed metering device to rotate through the furrow opener, meanwhile, in order to prevent the random shaking of the counter weight 3 caused by bumping in the working process, the sphere ii 16 of the outer rotor C is in sliding connection with the spherical bayonet groove group ii h of the front end cover a1 in the end cover a and the 25 spherical bayonet grooves of the spherical bayonet groove group iv 33 in the rear end cover a2, the sphere I12 of the outer rotor C is in sliding connection with the 25 spherical bayonet grooves iii 36 in the rear end cover a2 of the spherical bayonet groove group id of the front end cover a1 in the end cover a, a locking mechanism is formed together, and the purpose is achieved by adjusting the four pre-tightening spring groups to obtain proper pre-tightening force.

Claims

1. The utility model provides a seed metering ware anti-tilting device which characterized in that: the damping device is composed of an end cover (A), a buffer spring group I (B), an outer rotating body (C), a fixed rod (D), a buffer spring group II (E), a buffer spring group III (F), a buffer spring group IV (G), a pre-tightening spring group I (H), a connector (I), a pre-tightening spring group II (J), a pre-tightening spring group III (K), a pre-tightening spring group IV (L), a pulley I (1), a pulley II (2), a balancing weight (3), a pulley III (4) and a pulley IV (5), wherein the fixed rod (D) is arranged in a circular ring (C1) of the outer rotating body (C); the pulley I (1) is movably connected with an upper hole (t) of the fixed rod (D) through a pin shaft; the pulley III (4) is movably connected with the lower hole (y) of the fixed rod (D) through a pin shaft; the pulley II (2) is movably connected with a hole VII (n) of a right base (C2) in the outer rotor (C) through a pin shaft; the pulley IV (5) is movably connected with a hole IX (q) of a left base (C4) in the outer rotating body (C) through a pin shaft; the thick rod end of the buffer spring group I (B) is connected with a hole X (r) of a left base (C4) in the outer rotating body (C) through a pin shaft, and the thin rod end of the buffer spring group I (B) is connected with a hole I(s) of the fixed rod (D) through a pin shaft; the thick rod end of the buffer spring group II (E) is connected with a hole V (k) of a right base (C2) in the outer rotor (C) through a pin shaft, and the thin rod end of the buffer spring group II (E) is connected with a hole II (u) of the fixed rod (D) through a pin shaft; the thick rod end of the buffer spring group III (F) is connected with a hole VI (m) of a right base (C2) in the outer rotating body (C) through a pin shaft, and the thin rod end of the buffer spring group II (E) is connected with a hole III (x) of the fixed rod (D) through a pin shaft; the thick rod end of the buffer spring group IV (G) is connected with a hole VIII (o) of a left base (C4) in the outer rotating body (C) through a pin shaft, and the thin rod end of the buffer spring group II (E) is connected with a hole IV (z) of the fixed rod (D) through a pin shaft; the sphere II (16) of the outer rotating body (C) is in sliding connection with the spherical clamping groove group II (h) of the front end cover (A1) in the end cover (A) and 25 spherical clamping grooves of the spherical clamping groove group IV (33) in the rear end cover (A2); the sphere I (12) of the outer rotating body (C) is in sliding connection with the spherical clamping groove group I (d) of the front end cover (A1) in the end cover (A) and 25 spherical clamping grooves of the spherical clamping groove group III (36) in the rear end cover (A2); a main body (I1) of the connector (I) penetrates through a center hole I (A3) of a rear end cover (A2) in an end cover (A), and a left end hole (22) and a right end hole (23) of the connector (I) respectively penetrate through a cylindrical pin IV (p) and a cylindrical pin III (l) in an outer rotating body (C); the pulley I (1) and the pulley III (4) are respectively in sliding connection with a track I (13) of the outer rotating body (C), and the pulley II (2) and the pulley IV (5) are respectively in sliding connection with a track II (18) of the fixed rod (D); a left end hole (22) and a right end hole (23) of the connector (I) are respectively and correspondingly connected with a cylindrical pin IV (p) and a cylindrical pin III (L) of an outer rotating body (C), a counter bore I (30), a counter bore II (31), a counter bore III (34) and a counter bore IV (35) of a rear end cover (A2) are respectively and correspondingly connected with a supporting rod II (C), a supporting rod I (a), a supporting rod IV (g) and a supporting rod III (e) of a front end cover (A1) through four screws on a pre-tightening spring group I (H), a pre-tightening spring group II (J), a pre-tightening spring group III (K) and a pre-tightening spring group IV (L); the balancing weight (3) is connected with a cylindrical pin V (14) and a cylindrical pin VI (15) of the outer rotating body (C).

2. The seed metering device anti-tilting device according to claim 1, characterized in that: the end cover (A) is composed of a front end cover (A1) and a rear end cover (A2), wherein the front end cover (A1) is circular, a supporting rod I (a), a supporting rod II (c), a supporting rod III (e) and a supporting rod IV (g) are fixedly connected to the rear near edge of the front end cover and uniformly distributed, the rear end of each supporting rod is provided with a threaded blind hole, a cylindrical pin I (b) and a cylindrical pin II (f) are symmetrically and fixedly connected to the rear central line of the front end cover (A1) from top to bottom, the left side and the right side of the rear of the front end cover (A1) are symmetrically provided with an arc-shaped boss I (6) and an arc-shaped boss II (7), the arc-shaped boss I (6) is provided with a spherical clamping groove group I (d) composed of 25 spherical clamping grooves, and the arc-shaped boss II (7) is provided with a spherical clamping groove group II (h) composed of 25 spherical clamping grooves; the rear end cover (A2) is circular, the rear end cover (A2) is provided with a center hole I (A3), the front edge of the rear end cover (A2) is provided with uniformly distributed counter bores I (30), counter bores II (31), counter bores III (34) and counter bores IV (35), the left side and the right side of the front surface of the rear end cover (A2) are symmetrically provided with arc bosses IV (32) and arc bosses III (29), the arc bosses III (29) are provided with spherical clamping groove groups III (36) consisting of 25 spherical clamping grooves, the arc bosses IV (32) are provided with spherical clamping groove groups IV (33) consisting of 25 spherical clamping grooves, the radius of each spherical clamping groove is 4mm, the depth of each spherical clamping groove is 2mm, the centers of the front end cover (A1) and the rear end cover (A2) are original points, and the included angle between the centers of two adjacent spherical clamping grooves and the original point is 1 degree; the arc boss I (6), the arc boss II (7), the arc boss III (29) and the arc boss IV (32) are the same in shape, the arc radiuses are consistent and 118mm, and the arc angles are consistent and 26 degrees.

3. The seed metering device anti-tilting device according to claim 1, characterized in that: buffer spring group I (B), buffer spring group II (E), buffer spring group III (F), buffer spring group IV (G) structure is the same completely, by buffer spring (8), thick compression pole (9) and thin compression pole (10) are constituteed, thick compression pole (9) outer end is equipped with porose I (i), thin compression pole (10) outer end is equipped with porose II (j), thick compression pole (9) and thin compression pole (10) inner rigid coupling, buffer spring (8) are worn in thick compression pole (9) and thin compression pole (10), buffer spring (8) both ends are fixed a position by the baffle on thick compression pole (9) and thin compression pole (10) respectively.

4. The anti-tilting device of a seed metering device according to claim 1, characterized in that: the outer rotating body (C) consists of a circular ring (C1), a right base (C2), a vertical plate (C3), a left base (C4), a cylindrical pin III (l), a cylindrical pin IV (p), a cylindrical bayonet lock I (11), a sphere I (12), a cylindrical pin V (14), a cylindrical pin VI (15), a sphere II (16) and a cylindrical bayonet lock II (17), wherein the left base (C4) is fixedly connected to the left side of the inner ring of the circular ring (C1), the right base (C2) is fixedly connected to the right side of the inner ring of the circular ring (C1), and the vertical plate (C3) is fixedly connected to the lower end of the outer ring of the circular ring (C1); the left end of a right base (C2) is provided with a hole VII (n), the right base (C2) is vertically and symmetrically provided with a hole V (k) and a hole VI (m), a cylindrical pin III (l) is fixedly connected to the center of the right base (C2), and a sphere I (12) is fixedly connected to the right end of the right base (C2) through a cylindrical pin I (11); the right end of the left base (C4) is provided with a hole pair IX (q), the left base (C4) is vertically and symmetrically provided with a hole pair X (r) and a hole pair VIII (o), a cylindrical pin IV (p) is fixedly connected to the center of the left base (C4), and a sphere II (16) is fixedly connected to the left end of the left base (C4) through a cylindrical pin II (17); the cylindrical pin V (14) and the cylindrical pin VI (15) are symmetrically and fixedly connected to the lower part of the vertical plate (C3); the inner ring of the circular ring (C1) is provided with a track I (13).

5. The seed metering device anti-tilting device according to claim 1, characterized in that: the fixed rod (D) is provided with a central hole II (D1), the upper part of the fixed rod (D) is provided with a hole I(s), an upper hole (t), a hole II (u) and a central hole I (v), wherein the hole I(s) and the hole II (u) are symmetrically arranged around the central line of the fixed rod (D); the lower part of the fixed rod (D) is provided with a pair of holes IV (z), a lower hole (y), a pair of holes III (x) and a middle hole II (w), wherein the pair of holes IV (z) and the pair of holes III (x) are symmetrically arranged around the central line of the fixed rod (D); the upper hole (t), the middle hole I (v), the middle hole II (w) and the lower hole (y) are positioned on the central line of the fixed rod (D); a track II (18) is arranged in the middle of the fixed rod (D).

6. The seed metering device anti-tilting device according to claim 1, characterized in that: the structure of the pre-tightening spring group I (H), the structure of the pre-tightening spring group II (J), the structure of the pre-tightening spring group III (K) and the structure of the pre-tightening spring group IV (L) are completely the same and are respectively composed of a screw (19), a pre-tightening spring (20) and a pressing sheet (21), the pre-tightening spring (20) and the pressing sheet (21) are sequentially sleeved on the screw (19), and one end of the pressing sheet (21) is limited by the screw (19).

7. The seed metering device anti-tilting device according to claim 1, characterized in that: connector (I) by main part (I1), front bezel (I2), bolt I (24), back plate (25) and bolt II (27) constitute, front bezel (I2) rigid coupling in main part (I1) front end, back plate (25) through bolt I (24) and bolt II (27) rigid coupling in main part (I1) rear end, front bezel (I2) bilateral symmetry is equipped with left end hole (22) and right-hand member hole (23), back plate (25) bilateral symmetry is equipped with right hole (26) and left hole (28).