Seed-metering device height adaptability adjusting device for seeding machinery

Abstract

The utility model discloses a seed-metering device height adaptability adjusting device for seeding machinery. The seed-metering device height adaptability adjusting device comprises a mounting frame; the mounting frame is a metal frame body, the upper end and the lower end of the mounting frame are rotationally matched with a first deflection rod and a second deflection rod respectively, the first deflection rod and the second deflection rod are parallel to each other and are equal in length, and the other ends of the first deflection rod and the second deflection rod are rotationally matched with a follow-up frame of the support structure through a shaft rod; the floating frame comprises a follow-up frame, a seed metering rack and an inner sleeve, the inner sleeve is connected to the side, away from the mounting frame, of the bottom of the follow-up frame through the seed metering rack, an outer sleeve is arranged on the inner sleeve in a sliding fit mode, and a wheel is mounted on the outer sleeve through a wheel frame; the lowest position of the wheel is positioned below the floating frame and the outer sleeve; the device has the beneficial effects that the seeding height can be adjusted, and the height of the seed-metering device can be adaptively adjusted according to the bumping condition of the land.

Description

Technical Field

[0001] The utility model belongs to the technical field of sowing equipment, and in particular relates to a seed meter height adaptability regulating device for a sowing machine. Background Art

[0002] my country is a large agricultural country. Relying on development, agriculture provides food for a large population. The development of agriculture requires the support of agricultural machinery. Among agricultural machinery, the seeder is an important model. The seeder is mainly used for sowing and fertilizing, so the seed meter is its core component. For different crops, the sowing method is also different. For example, for wheat, sesame, rapeseed, and millet, the seeds of these crops should be broadcasted, that is, broadcasted in rows. After the seeds of these crops germinate, the distance between the plants is small and the seedlings are dense, so the broadcasting method can be adopted. For crops such as soybeans and corn, spot sowing should be adopted, that is, sowing one by one. After the germination of these crops, the distance between the plants is large, and in order to achieve high plant yields, the distance between the plants should be equal to ensure that each plant gets equal sunlight, water, and nutrients. Therefore, this type of crop can only be sown and not broadcast. In the past, people used manual sowing, which not only had a large workload and low work efficiency, but also was difficult to control the seed sowing density. Often, some places were sown densely and some places were sown sparsely, resulting in a very low yield per mu.

[0003] Patent document with publication number CN2299440 discloses a multi-purpose crop trough and hole sowing device, in which a row sowing wheel and a hole sowing wheel are installed on a group of seed sowing devices at the same time. Through simple and convenient adjustment, it can be used for seed broadcasting or spot sowing of various crops respectively. It has the advantages of wide application, convenient use, good sowing quality and high yield per unit area. Practice has proved that the use of trough and hole sowing seed sowing devices is successful; however, the above-mentioned seed sowing devices are usually fixedly set, and there is no way to adaptively adjust the sowing height according to the bumpy conditions of the land. Otherwise, when the land rises, the seeds will be buried by the filling mechanism behind the sowing machine before they fall into the appropriate position, or the too high seed sowing height will affect the landing point of the seeds due to the factors of wind vibration on site. In severe cases, the seeds will even fall on the land outside the trough and hole, affecting the growth and development of the seeds. Utility Model Content

[0004] The utility model aims to provide a height adaptability regulating device for a seeding device of a sowing machine, so as to solve the technical problem that the height of the seeding device cannot be adaptively adjusted in the above-mentioned background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A device for adjusting the height adaptability of a seeding device of a seeding machine comprises: a mounting frame; the mounting frame is a metal frame, and the upper and lower ends of the mounting frame are respectively rotatably matched with a first deflection rod and a second deflection rod, the first deflection rod and the second deflection rod are parallel to each other and have equal lengths, and the other ends of the first deflection rod and the second deflection rod are rotatably matched with a follower frame of a shaft rod and a bracket structure; a floating frame comprises: a follower frame, a seeding machine frame, and an inner sleeve, a side of the bottom of the follower frame away from the mounting frame is connected to an inner sleeve through the seeding machine frame, an outer sleeve is slidably matched on the inner sleeve, and a wheel is mounted on the outer sleeve through a wheel frame; the lowest position of the wheel is located below the floating frame and the outer sleeve as a whole.

[0007] Furthermore, in order to allow the wheels to continuously press the ground and prevent the wheels from bouncing due to bumps and affecting the seeding height of the seeding device, a deflection adjustment mechanism is installed on the first deflection rod and the second deflection rod, and the deflection adjustment mechanism includes: a spring, a spring seat, a connecting rod, an axle rod, and a transmission rod; the middle part of the second deflection rod is rotatably matched with a connecting rod through the axle rod, and the lower part of the connecting rod is hinged with the transmission rod and the follower frame, and the follower frame is provided with a hinge seat for the transmission rod to be hinged; a spring is mounted on the upper part of the connecting rod; a spring seat is fixed to the upper part of the spring, and the spring seat is directly or indirectly connected to the first deflection rod.

[0008] Furthermore, in order to adjust the force with which the wheel presses the ground, the deflection adjustment mechanism also includes: a deflection screw, a limit column, and a deflection crank; the deflection screw and the spring seat are threaded together, the top of the deflection screw penetrates the first deflection rod and is connected to a limit column with a columnar structure, the hole on the first deflection rod for the deflection screw to penetrate is the limit hole, and the aperture of the limit hole is larger than the diameter of the deflection screw and smaller than the diameter of the limit column; a deflection crank with a rocker structure is provided on the limit column.

[0009] Furthermore, in order to limit the deflection range of the wheel and prevent the seeds in the seed meter from being spilled due to excessive wheel deflection, a deflection limiting mechanism is installed on the first deflection rod and the second deflection rod, and the deflection limiting mechanism includes: a limit rod, a slide groove, and a limit bolt; the limit rod is rotatably engaged on the shaft rod that cooperates with the second deflection rod and the follower frame, and the other end of the limit rod is provided with a slide groove with a notch structure, and the middle part of the first deflection rod is fixed with a limit bolt, and the limit bolt is located in the slide groove and slidably engaged with the slide groove.

[0010] Furthermore, in order to adjust the height of the wheel according to the sowing type, a height adjustment mechanism is installed on the outer sleeve, and the height adjustment mechanism includes: a height adjustment screw, a bearing, a fixed plate, a threaded sleeve, and a height adjustment handle; a fixed plate with a sheet-like structure is fixed on the top of the outer sleeve, and a height adjustment screw is rotatably matched with the center of the fixed plate through a bearing, and a threaded sleeve with a block-like structure is fixed on the top of the inner sleeve, and the height adjustment screw and the threaded sleeve are threadedly matched, and the top of the height adjustment screw protrudes above the fixed plate and is connected to a height adjustment handle with a rocker arm structure.

[0011] Furthermore, in order to fix the height of the wheel after the height of the wheel is adjusted, at least one set of bolt seats is provided on the outer sleeve, and the bolt seats are provided with penetrating threaded holes. The inner threads of the threaded holes are matched with locking bolts, and the inner sleeve and the outer sleeve can be clamped and fixed by screwing the locking bolts.

[0012] Furthermore, in order to prevent the limiting column from getting stuck on the limiting hole and affecting the rotation operation of the limiting column, one end of the limiting column close to the limiting hole is rounded.

[0013] Furthermore, in order to increase the structural strength of the floating frame, the floating frame further includes: a reinforcement frame, which is a metal bracket structure, and the reinforcement frame fixedly connects the upper part of the follower frame and the inner sleeve.

[0014] Furthermore, in order to facilitate the seeding device to plant seeds, the seeding frame is provided with a seeding channel for the seeding device to drop seeds.

[0015] In summary, the utility model has the following beneficial effects:

[0016] ① The sowing height can be adjusted: through the establishment of a height adjustment mechanism, the height adjustment handle is turned, and the height adjustment handle drives the height adjustment screw to rotate. Because the threaded sleeve and the height adjustment screw are threaded, the rotating height adjustment screw will change the relative position of the height adjustment screw and the threaded sleeve. Because the threaded sleeve is fixed on the inner sleeve, the screw will drive the outer sleeve as a whole to move up or down through the bearing and the fixing plate, and then adjust the overall height of the wheel frame and the wheel on the outer sleeve. The wheel needs to contact the ground, so the height adjustment of the wheel can affect the height of the floating frame and change the height of the seed meter installed on the floating frame, thereby adjusting the sowing height of the seed meter;.

[0017] ② The height of the seeding device can be adaptively adjusted according to the bumpy conditions of the land: through the establishment of a deflection adjustment mechanism, the seeding machine drives the wheels to roll on the land through the seeding machine beam and drives the seeding device to work. The seeding device performs seeding operations through the seeding channel. When the land is bumpy, the wheels follow the bumpy road surface to shift upward, and the wheels drive the floating frame to follow the deflection through the wheel frame and the outer sleeve. When the floating frame deflects, the angle between the follower frame and the first deflection rod and the second deflection rod changes, and then the follower frame drives the connecting rod to deflect through the transmission rod, and the other end of the connecting rod pulls the spring. Therefore, when the wheel is disengaged from the upper displacement, the spring has a resetting elastic tendency, which will drive the connecting rod to reset, and then drive the wheel, wheel frame, outer sleeve, and floating frame to reset as a whole through the shaft rod, and then elastically press the wheel on the land, so that the wheel is always in contact with the land, so that the seeding device on the floating frame always maintains a reasonable range of height with the land, and ensures the height stability of seeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the deflection adjustment mechanism in the utility model;

[0020] Figure 3 It is a structural schematic diagram of the height adjustment mechanism in the utility model;

[0021] Figure 4 yes Figure 3 A magnified view of the structure in the middle;

[0022] Figure 5 It is a schematic diagram of the use structure of the utility model;

[0023] In the figure, 1, mounting frame; 2, first deflection rod; 3, second deflection rod; 4, deflection limiting mechanism; 5, floating frame; 6, outer sleeve; 7, height adjustment mechanism; 8, locking bolt; 9, deflection adjustment mechanism; 10, wheel; 11, wheel frame; 12, seeder beam; 13, seeding device; 21, limiting hole; 41, limiting rod; 42, slide groove; 43, limiting bolt; 51, follow-up frame; 52, seeding frame; 53, inner sleeve; 54, hinge seat; 55, reinforcement frame; 56, seeding channel; 61, bolt seat; 71, height adjustment screw; 72, bearing; 73, fixing plate; 74, threaded sleeve; 75, height adjustment crank; 91, deflection screw; 92, limiting column; 93, deflection crank; 94, spring; 95, spring seat; 96, connecting rod; 97, shaft rod; 98, transmission rod. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0026] Brief description of the usage process:

[0027] A height adaptability adjustment device for a seeding device of a seeding machinery comprises: a mounting frame 1; the mounting frame 1 is a metal frame, and the upper and lower ends of the mounting frame 1 are respectively rotatably matched with a first deflection rod 2 and a second deflection rod 3, the first deflection rod 2 and the second deflection rod 3 are parallel to each other and have equal lengths, and the other ends of the first deflection rod 2 and the second deflection rod 3 are rotatably matched through a follower frame 51 of an axle rod and a bracket structure; a floating frame 5 comprises: a follower frame 51, a seeding frame 52, and an inner sleeve 53, a side of the bottom of the follower frame 51 away from the mounting frame 1 is connected to an inner sleeve 53 through the seeding frame 52, an outer sleeve 6 is slidably matched on the inner sleeve 53, and a wheel 10 is installed on the outer sleeve 6 through a wheel frame 11; the lowest position of the wheel 10 is located below the floating frame 5 and the outer sleeve 6 as a whole.

[0028] In order to enable the wheel 10 to continuously press the land and prevent the wheel 10 from bouncing due to bumps and affecting the seeding height of the seeding device 13, a deflection adjustment mechanism 9 is installed on the first deflection rod 2 and the second deflection rod 3. The deflection adjustment mechanism 9 includes: a spring 94, a spring seat 95, a connecting rod 96, an axle rod 97, and a transmission rod 98; the middle part of the second deflection rod 3 is rotatably matched with a connecting rod 96 through the axle rod 97, and the lower part of the connecting rod 96 is hinged to the follower frame 51 through the transmission rod 98, and the follower frame 51 is provided with a hinge seat 54 for the transmission rod 98 to be hinged; a spring 94 is mounted on the upper part of the connecting rod 96; a spring seat 95 is fixed to the upper part of the spring 94, and the spring seat 95 is directly or indirectly connected to the first deflection rod 2.

[0029] In order to adjust the force with which the wheel 10 presses the ground, the deflection adjustment mechanism 9 also includes: a deflection screw 91, a limiting column 92, and a deflection crank 93; the deflection screw 91 and the spring seat 95 are threadedly matched, the top of the deflection screw 91 penetrates the first deflection rod 2 and is connected to a limiting column 92 with a columnar structure, the hole on the first deflection rod 2 for the deflection screw 91 to penetrate is a limiting hole 21, the aperture of the limiting hole 21 is larger than the diameter of the deflection screw 91 and smaller than the diameter of the limiting column 92; the limiting column 92 is provided with a deflection crank 93 with a rocker structure.

[0030] In order to limit the deflection range of the wheel 10 and prevent the wheel 10 from deflecting too much and causing the seeds in the seed metering device 13 to be spilled, a deflection limiting mechanism 4 is installed on the first deflection rod 2 and the second deflection rod 3. The deflection limiting mechanism 4 includes: a limiting rod 41, a slide groove 42, and a limiting bolt 43; the limiting rod 41 is rotatably engaged on the shaft rod that cooperates with the second deflection rod 3 and the follower frame 51, and the other end of the limiting rod 41 is provided with a slide groove 42 with a notch structure, and the limiting bolt 43 is fixed in the middle of the first deflection rod 2, and the limiting bolt 43 is located in the slide groove 42 and slides with the slide groove 42.

[0031] In order to adjust the height of the wheel 10 according to the sowing type, a height adjustment mechanism 7 is installed on the outer sleeve 6, and the height adjustment mechanism 7 includes: a height adjustment screw 71, a bearing 72, a fixed plate 73, a threaded sleeve 74, and a height adjustment crank 75; a fixed plate 73 with a sheet-like structure is fixed on the top of the outer sleeve 6, and a height adjustment screw 71 is rotatably matched with the center of the fixed plate 73 through the bearing 72; a threaded sleeve 74 with a block-like structure is fixed on the top of the inner sleeve 53, and the height adjustment screw 71 and the threaded sleeve 74 are threadedly matched, and the top of the height adjustment screw 71 protrudes above the fixed plate 73 and is connected to a height adjustment crank 75 with a rocker arm structure.

[0032] In order to fix the height of the wheel 10 after the height of the wheel 10 is adjusted, at least one group of bolt seats 61 are provided on the outer sleeve 6, and a penetrating threaded hole is provided on the bolt seat 61. The inner thread of the threaded hole is matched with a locking bolt 8, and the inner sleeve 53 and the outer sleeve 6 can be clamped and fixed by screwing the locking bolt 8.

[0033] In order to prevent the limiting column 92 from getting stuck on the limiting hole 21 and affecting the rotation of the limiting column 92 , one end of the limiting column 92 close to the limiting hole 21 is rounded.

[0034] In order to increase the structural strength of the floating frame 5 , the floating frame 5 further includes a reinforcing frame 55 . The reinforcing frame 55 is a metal bracket structure. The reinforcing frame 55 fixedly connects the upper portion of the follower frame 51 and the inner sleeve 53 .

[0035] In order to facilitate the seeding device 13 to plant seeds, the seeding frame 52 is provided with a seeding channel 56 for the seeding device 13 to drop seeds.

[0036] First embodiment (setting up a deflection adjustment mechanism 9, suitable for flat or uneven land):

[0037] When using, Figure 5 As shown, the seed meter 13 is installed on the seed meter frame 52, the seeding hole of the seed meter 13 is aligned with the seeding channel 56, and the device is installed as a whole on the seeder beam 12 using the mounting frame 1, and then the height adjustment crank 75 is turned to adaptively adjust the height of the wheel 10 (different seed sowing heights require different adjustments).

[0038] When the height of the wheel 10 is adjusted, the height adjustment crank handle 75 is rotated, and the height adjustment crank handle 75 drives the height adjustment screw 71 to rotate. Because the threaded sleeve 74 and the height adjustment screw 71 are threaded, the rotating height adjustment screw 71 will change the relative position of the height adjustment screw 71 and the threaded sleeve 74. Because the threaded sleeve 74 is fixed on the inner sleeve 53, the screw 71 will drive the outer sleeve 6 as a whole to move upward or downward through the bearing 72 and the fixing plate 73, thereby adjusting the overall height of the wheel frame 11 and the wheel 10 on the outer sleeve 6; after the height adjustment of the wheel 10 is completed, the locking bolt 8 is locked and fixed between the inner sleeve 53 and the outer sleeve 6.

[0039] The seeding machine drives the wheel 10 to roll on the land through the seeding machine beam 12, and drives the seeding device 13 to work. The seeding device 13 performs seeding operations through the seeding channel 56. When the land is bumpy, the wheel 10 follows the bumpy road surface to shift upward, and the wheel 10 drives the floating frame 5 to follow the deflection through the wheel frame 11 and the outer sleeve 6. When the floating frame 5 deflects, the angle between the follower frame 51 and the first deflection rod 2 and the second deflection rod 3 changes, and then the follower frame 51 drives the connecting rod 96 to deflect through the transmission rod 98, and the other end of the connecting rod 96 pulls the spring 94. Therefore, when the wheel 10 is disengaged from the upper displacement, the spring 94 has a resetting elastic tendency, which will drive the connecting rod 96 to reset, and then drive the wheel 10, the wheel frame 11, the outer sleeve 6, and the floating frame 5 to reset as a whole through the shaft rod 97, and then elastically press the wheel 10 on the land, so that the wheel 10 is always in contact with the land, so that the seeding device 13 on the floating frame 5 is always at a reasonable range of height with the land, and the height stability of seeding is guaranteed.

[0040] The deflection screw 91 can be driven to rotate by rotating the deflection crank 93, and the deflection screw 91 drives the spring seat 95 matched with its thread to move toward the deflection crank 93 side and then pull the spring 94, thereby increasing the elastic force of the spring 94, thereby making the deflection difficulty of the floating frame 5 greater and the force with which the wheel 10 presses the ground greater (the force with which the wheel 10 presses the ground is neither the greater the better nor the smaller the better, and needs to be adaptively adjusted according to the hardness and undulation of the ground).

[0041] Second embodiment: (without setting up the deflection adjustment mechanism 9, suitable for relatively flat land), the wheel 10 relies on its own gravity and the gravity of the floating frame 5 to maintain contact with the ground surface to ensure that the seeding device 13 on the floating frame 5 always maintains a reasonable height with the ground, ensuring the stability of the seeding height. However, this embodiment is only applicable to relatively flat land. When the land is uneven, the wheel 10 may bounce due to bumps and affect the seeding height of the seeding device 13 because the holding force of the wheel 10 is insufficient. The other usage principles of this embodiment are consistent with those of the first embodiment, so they will not be repeated.

[0042] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A seeding device height adaptability adjustment device for a sowing machine, comprising: The mounting frame (1) is characterized in that: the mounting frame (1) is a metal frame, and the upper and lower ends of the mounting frame (1) are respectively rotatably matched with a first deflection rod (2) and a second deflection rod (3), the first deflection rod (2) and the second deflection rod (3) are parallel to each other and have the same length, and the other ends of the first deflection rod (2) and the second deflection rod (3) are rotatably matched with a follower frame (51) of a shaft rod and a bracket structure; the floating frame (5) comprises: a follower frame (51), a seeding frame (52), and an inner sleeve (53), the bottom of the follower frame (51) is connected to an inner sleeve (53) through the seeding frame (52) at one side away from the mounting frame (1), an outer sleeve (6) is slidably matched on the inner sleeve (53), and a wheel (10) is installed on the outer sleeve (6) through a wheel frame (11); the lowest position of the wheel (10) is located below the floating frame (5) and the outer sleeve (6) as a whole.

2. The height adaptability adjustment device for a seed metering device of a sowing machine according to claim 1, characterized in that: The first deflection rod (2) and the second deflection rod (3) are provided with a deflection adjustment mechanism (9), which comprises: a spring (94), a spring seat (95), a connecting rod (96), a shaft rod (97), and a transmission rod (98); the middle part of the second deflection rod (3) is rotatably matched with a connecting rod (96) through the shaft rod (97); the lower part of the connecting rod (96) is hinged to a follower frame (51) through the transmission rod (98); the follower frame (51) is provided with a hinge seat (54) for hinged connection of the transmission rod (98); the upper part of the connecting rod (96) is mounted with a spring (94); the upper part of the spring (94) is fixed with a spring seat (95), and the spring seat (95) is directly or indirectly connected to the first deflection rod (2).

3. The height adaptability adjustment device for a seeding device of a sowing machine according to claim 2, characterized in that: The deflection adjustment mechanism (9) further comprises: a deflection screw (91), a limiting column (92), and a deflection crank (93); the deflection screw (91) and the spring seat (95) are threadedly matched, the top of the deflection screw (91) penetrates the first deflection rod (2) and is connected to a limiting column (92) with a columnar structure, the hole on the first deflection rod (2) for the deflection screw (91) to penetrate is a limiting hole (21), the diameter of the limiting hole (21) is larger than the diameter of the deflection screw (91) and smaller than the diameter of the limiting column (92); the limiting column (92) is provided with a deflection crank (93) with a rocker structure.

4. The height adaptability adjustment device for a seeding device of a sowing machine according to claim 3 is characterized in that: A deflection limiting mechanism (4) is installed on the first deflection rod (2) and the second deflection rod (3), and the deflection limiting mechanism (4) comprises: a limiting rod (41), a sliding groove (42), and a limiting bolt (43); the limiting rod (41) is rotatably engaged with the shaft rod engaged with the second deflection rod (3) and the follower frame (51), the other end of the limiting rod (41) is provided with a sliding groove (42) with a notch structure, the middle part of the first deflection rod (2) is fixed with a limiting bolt (43), and the limiting bolt (43) is located in the sliding groove (42) and slidably engaged with the sliding groove (42).

5. The height adaptability adjustment device for a seed metering device of a sowing machine according to claim 1, characterized in that: The outer sleeve (6) is provided with a height adjustment mechanism (7), which comprises: a height adjustment screw (71), a bearing (72), a fixing plate (73), a threaded sleeve (74), and a height adjustment crank (75); a fixing plate (73) with a sheet-like structure is fixed on the top of the outer sleeve (6); a height adjustment screw (71) is rotatably matched at the center of the fixing plate (73) through the bearing (72); a threaded sleeve (74) with a block-like structure is fixed on the top of the inner sleeve (53); the height adjustment screw (71) and the threaded sleeve (74) are threadably matched; the top of the height adjustment screw (71) protrudes above the fixing plate (73) and is connected to a height adjustment crank (75) with a rocker arm structure.

6. The height adaptability adjustment device for a seed metering device of a sowing machine according to claim 5, characterized in that: The outer sleeve (6) is provided with at least one group of bolt seats (61), the bolt seats (61) are provided with threaded holes penetrating therethrough, the inner threads of the threaded holes are matched with locking bolts (8), and the inner sleeve (53) and the outer sleeve (6) can be clamped and fixed by screwing the locking bolts (8).

7. The height adaptability adjustment device for a seed metering device of a sowing machine according to claim 3, characterized in that: One end of the limiting column (92) close to the limiting hole (21) is rounded.

8. The height adaptability adjustment device for a seed metering device of a sowing machine according to claim 1, characterized in that: The floating frame (5) further comprises a reinforcing frame (55), which is a metal support structure. The reinforcing frame (55) fixedly connects the upper part of the follower frame (51) and the inner sleeve (53).

9. The height adaptability adjustment device for a seed metering device of a sowing machine according to claim 1, characterized in that: The seeding frame (52) is provided with a seeding channel (56) for the seeding device (13) to drop seeds.

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