Seeding roller driving mechanism for multi-row corn planter

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a seeding roller driving mechanism for a multi-row corn planter. The mechanism comprises a plurality of seeding boxes, seeding rollers are rotationally connected into the seeding boxes, the seeding rollers are connected with seeding roller shafts, driven belt wheels are mounted on at least two seeding roller shafts, driving belt wheels are mounted on walking wheel shafts, transmission belts are wound between the driving belt wheels and the driven belt wheels, and every two adjacent seeding roller shafts are in transmission connection. A plurality of protruding block moving cavities are formed in the side portion of the driven belt wheel, driven wheel protruding blocks which can enter and exit from the protruding block moving cavities and are matched with the belt grooves are installed in the protruding block moving cavities, reset devices and limiting devices are arranged between the driven wheel protruding blocks and the protruding block moving cavities, and the sides, close to the front portion of the rotating direction of the driven belt wheel, of the driven wheel protruding blocks are obliquely arranged. The rotating speeds of the walking wheels are different, and the rotating speeds of the seeding roller shafts are the same, so that the consistency of seeding spacing is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, specifically, and relates to a kind of seeding roller drive mechanism for multi-row corn planter. BACKGROUND

[0002] The existing multi-row corn planter, including several seeding boxes, rotatingly connected with seeding roller in seeding box, seeding roller is connected with seeding roller shaft, driven pulley is installed on seeding roller shaft, driving pulley is installed on walking wheel shaft, driving pulley and driven pulley are wound with transmission belt between, when using, walking wheel rotates, and driving pulley is rotated to carry out seeding by transmission belt.

[0003] The above technical scheme has the following shortcomings: because farmland ground is even, the rotational speed of each walking wheel is not same sometimes, leading to the rotational speed of seeding roller is not same, when carrying out multi-row seeding, it causes that seeding interval is not consistent. UTILITY MODEL CONTENTS

[0004] The utility model aims at above -mentioned problem and provides a kind of seeding roller drive mechanism for multi-row corn planter, realizes that the rotational speed of walking wheel is not same while the rotational speed of seeding roller shaft is same.

[0005] To achieve the above object, the utility model discloses a kind of seeding roller drive mechanism for multi-row corn planter, the mechanism includes several seeding boxes, rotatingly connected with seeding roller in seeding box, seeding roller is connected with seeding roller shaft, at least two driven pulleys are installed on seeding roller shaft, driving pulley is installed on walking wheel shaft, driving pulley and driven pulley are wound with transmission belt between, adjacent two seeding roller shafts are transmissionally connected, driven pulley side portion has several protruding block movable cavities, driven pulley protruding block is installed in protruding block movable cavity, and driven pulley protruding block is matched with the driven pulley block of belt groove, driven pulley block and protruding block movable cavity between there is reset device and limiting device, driven pulley block is inclinedly arranged on the side close to the front of driving direction of driven pulley.

[0006] When the rotational speed of two walking wheel shafts is same, the rotational speed of two driven pulleys and two transmission belts is same. When the rotational speed of two walking wheel shafts is different, transmission belt with faster rotational speed drives two driven pulleys to rotate, at this time, the rotational speed of driven pulley is greater than transmission belt with slower rotational speed, and the side close to the front of driving direction of driven pulley is pushed and crowded by the side wall of belt groove, driven pulley protruding block enters protruding block movable cavity, realize that the rotational speed of walking wheel is not same while the rotational speed of seeding roller shaft is same, it is beneficial to improve the consistency of seeding interval.

[0007] Preferably, the bottom of driven pulley protruding block close to the side of the front of driving direction of driven pulley is hinged with driven pulley.

[0008] When the driven wheel protruding block is pushed into the protruding block movable cavity, the elastic sheet is compressed, and when the driven wheel protruding block is not pushed, the elastic sheet pushes the driven wheel protruding block out, which is convenient to use.

[0009] When the driven wheel protruding block is pushed into the protruding block movable cavity, the elastic sheet is compressed, and when the driven wheel protruding block is not pushed, the elastic sheet pushes the driven wheel protruding block out, which is convenient to use.

[0010] Preferably, the limiting device comprises a dynamic limiting block located at the bottom of the driven wheel protruding block near the rear end of the driven belt wheel rotation direction and a static limiting block located at the top of the side wall of the protruding block movable cavity near the rear end of the driven belt wheel rotation direction, and the top of the dynamic limiting block can be in contact with the bottom of the static limiting block.

[0011] When the driven wheel protruding block is not pushed, the elastic sheet pushes the driven wheel protruding block out, and the top of the dynamic limiting block is in contact with the bottom of the static limiting block, so that the driven wheel protruding block is prevented from being separated from the protruding block movable cavity.

[0012] Preferably, the side of the driven wheel protruding block near the rear end of the driven belt wheel rotation direction has a shielding block for shielding the protruding block movable cavity.

[0013] In order to ensure the movement of the driven wheel protruding block, a clearance is left at the opening of the protruding block movable cavity, and the shielding block shields part of the clearance, which is aesthetically pleasing and reduces the entry of dust into the protruding block movable cavity.

[0014] Preferably, the driven belt wheel comprises a middle wheel and side plates connected to both sides of the middle wheel in a detachable manner, and the protruding block movable cavity is located on the middle wheel.

[0015] This structure is convenient for processing and manufacturing.

[0016] Preferably, the protruding block hinge shaft of the driven wheel protruding block is connected to the side plate.

[0017] This structure is convenient for processing and manufacturing.

[0018] Preferably, the fixing bolt is screwed to the middle wheel after passing through the side plate.

[0019] This structure is convenient for processing and manufacturing.

[0020] Preferably, the adjacent two seeding roller shafts have a connecting shaft, and the seeding roller shafts and the connecting shaft are connected through universal joints.

[0021] This structure has high transmission efficiency of the adjacent two seeding roller shafts and low installation precision requirement.

[0022] The utility model discloses the beneficial effect lies in: when the rotational speed of two walking wheel shafts is same, the rotational speed of two driven pulleys and two transmission belts is same. When the rotational speed of two walking wheel shafts is not same, the transmission belt of rotational speed faster drives two driven pulleys to rotate, and at this time, the rotational speed of driven pulley is greater than the transmission belt of rotational speed slower, and the side wall of belt groove pushes and pushes driven pulley boss to be close to the side of driven pulley rotation direction front, and driven pulley boss enters boss movable cavity, realizes that the rotational speed of walking wheel is not same and that the rotational speed of seeding roller axle is same, and it is beneficial to improve the consistency of seeding spacing. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the front view structural schematic diagram of a kind of seeding roller drive mechanism for multiple row corn planter of the utility model;

[0024] Figure 2 It is the side view structural schematic diagram of a kind of seeding roller drive mechanism for multiple row corn planter of the utility model;

[0025] Figure 3 It is the structural schematic diagram of driven pulley in a kind of seeding roller drive mechanism for multiple row corn planter of the utility model;

[0026] Figure 4 It is Figure 3 The structural schematic diagram of section A-A in it;

[0027] Figure 5 It is Figure 3 The structural schematic diagram of partial B in it;

[0028] Figure 6 It is Figure 3 The structural schematic diagram of partial B working state in it;

[0029] Figure 7 It is the structural schematic diagram of driving pulley in a kind of seeding roller drive mechanism for multiple row corn planter of the utility model.

[0030] In the drawing: 1, seeding box;2, seeding roller axle;3, connecting shaft;4, universal joint;5, driven pulley;501, intermediate wheel;502, side plate;503, elastic sheet;504, driven pulley boss;505, boss hinged axle;506, boss movable cavity;507, dynamic limit block;508, static limit block;509, shielding block;6, transmission belt;7, driving pulley;701, driving pulley boss;8, walking wheel axle;9, belt groove;10, fixed bolt. DETAILED DESCRIPTION

[0031] The specific implementation of the utility model is described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0032] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0033] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0034] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] The utility model will be further described below in combination with the drawings and specific embodiments:

[0036] As Figures 1 to 7As shown in the figure, a kind of multiple-row corn planter is used seeding roller drive mechanism, including several seeding boxes 1, seeding box 1 is rotatably connected with seeding roller, seeding roller is connected with seeding roller shaft 2, in the embodiment, two seeding boxes 1 are taken as an example to be described. At least two seeding roller shafts 2 are installed with driven pulley 5, running wheel shaft 8 is installed with driving pulley 7, driving pulley 7 is wound with transmission belt 6 between driven pulley 5, the inside of transmission belt 6 has several belt grooves 9, the side of driving pulley 7 has several driving wheel lugs 701 matched with belt groove 9. Transmission is connected between the adjacent two seeding roller shafts 2, the side of driven pulley 5 has several lug movable cavities 506, lug movable cavity 506 is installed with driven wheel lug 504 capable of entering and exiting lug movable cavity 506 and matched with belt groove 9, driven wheel lug 504 and lug movable cavity 506 have reset device and limiting device, the side of driven wheel lug 504 close to the front of the rotation direction of driven pulley 5 is arranged obliquely. The adjacent two seeding roller shafts 2 have connecting shaft 3, and the seeding roller shaft 2 is connected with the connecting shaft 3 through the universal joint 4. The transmission efficiency of the adjacent two seeding roller shafts 2 is high, and the installation precision requirement is lower. When the rotation speed of the two running wheel shafts 8 is the same, the rotation speed of the two driven pulleys 5 and the two transmission belts 6 is the same. When the rotation speed of the two running wheel shafts 8 is different, the transmission belt 6 with faster rotation speed drives the two driven pulleys 5 to rotate, at this time, the rotation speed of the driven pulley 5 is greater than the transmission belt 6 with slower rotation speed, the side wall of the belt groove 9 pushes the driven wheel lug 504 close to the front of the rotation direction of the driven pulley 5, the driven wheel lug 504 enters the lug movable cavity 506, realizes that the running wheel rotation speed is not the same and the seeding roller shaft 2 rotation speed is the same, and is beneficial to improve the consistency of the seeding spacing.

[0037] Specifically, the bottom of the driven wheel lug 504 close to the front of the rotation direction of the driven pulley 5 is hinged with the driven pulley 5. When the rotation speed of the two running wheel shafts 8 is different, the side wall of the belt groove 9 pushes the driven wheel lug 504 close to the front of the rotation direction of the driven pulley 5, the end of the driven wheel lug 504 close to the rear of the rotation direction of the driven pulley 5 swings to the inside, so that the driven wheel lug 504 enters the lug movable cavity 506, the movement is reliable, and the use is convenient.

[0038] Specifically, the reset device includes an L-shaped elastic sheet 503, one side of the elastic sheet 503 is connected with the bottom of the driven wheel lug 504, and the other side of the elastic sheet 503 is connected with the side wall of the lug movable cavity 506 close to the front of the rotation direction of the driven pulley 5. When the driven wheel lug 504 is pushed into the lug movable cavity 506, the elastic sheet 503 is compressed, and when the driven wheel lug 504 is not pushed, the elastic sheet 503 pushes the driven wheel lug 504 out, which is convenient to use.

[0039] Specifically, the limiting device comprises a dynamic limiting block 507 located at the bottom of the driven wheel protrusion 504 near the rear end of the rotation direction of the driven pulley 5 and a static limiting block 508 located at the top of the side wall of the protrusion movable cavity 506 near the rear end of the rotation direction of the driven pulley 5, and the top of the dynamic limiting block 507 can be in contact with the bottom of the static limiting block 508. When the driven wheel protrusion 504 is not pushed, the elastic sheet 503 will push the driven wheel protrusion 504 out, the top of the dynamic limiting block 507 is in contact with the bottom of the static limiting block 508, and the driven wheel protrusion 504 is prevented from being separated from the protrusion movable cavity 506.

[0040] Specifically, the side of the driven wheel protrusion 504 near the rear end of the rotation direction of the driven pulley 5 has a blocking block 509 for blocking the protrusion movable cavity 506. In order to ensure the movement of the driven wheel protrusion 504, an avoiding space is left at the opening of the protrusion movable cavity 506, and the blocking block 509 blocks part of the avoiding space, which is beautiful in appearance and reduces the entry of dust into the protrusion movable cavity 506. The driven pulley 5 comprises a middle wheel 501 and side plates 502 connected to the two sides of the middle wheel 501 in a detachable manner, and the protrusion movable cavity 506 is located on the middle wheel 501. This structure is convenient for processing and manufacturing. The protrusion hinged shaft 505 of the driven wheel protrusion 504 is connected with the side plate 502. This structure is convenient for processing and manufacturing. The fixing bolt 10 is screwed with the middle wheel 501 after penetrating through the side plate 502. This structure is convenient for processing and manufacturing.

[0041] The above only describes the preferred embodiments of the present application, and it should be noted that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and substitutions can be made, and these improvements and substitutions should also be considered as the protection scope of the present application.

Claims

1. A seeding roller drive mechanism for multi-row corn planter, comprising several seeding boxes (1), a seeding roller is rotatably connected in the seeding box (1), the seeding roller is connected with a seeding roller shaft (2), at least two seeding roller shafts (2) are installed with driven pulleys (5), a driving pulley (7) is installed on a walking wheel shaft (8), a transmission belt (6) is wound between the driving pulley (7) and the driven pulley (5), characterized in that, The two adjacent sowing roller shafts (2) are transmission connected, the driven pulley (5) has a plurality of convex block movable cavities (506) on the side, the convex block movable cavities (506) are internally provided with the driven pulley convex blocks (504) which can enter and exit the convex block movable cavities (506) and are matched with the belt groove (9), the driven pulley convex blocks (504) and the convex block movable cavities (506) are provided with reset devices and limiting devices, and the driven pulley convex blocks (504) are provided on the side close to the front of the rotation direction of the driven pulley (5).

2. The multiple-row corn planter roller drive mechanism of claim 1, wherein, The bottom of the driven pulley convex blocks (504) close to the side of the front of the rotation direction of the driven pulley (5) is hinged to the driven pulley (5).

3. The multiple-row corn planter roller drive mechanism of claim 2, wherein, The reset device comprises an L-shaped elastic sheet (503), one side of the elastic sheet (503) is connected to the bottom of the driven pulley convex blocks (504), and the other side of the elastic sheet (503) is connected to the side wall close to the front of the rotation direction of the driven pulley (5) of the convex block movable cavities (506).

4. The multiple-row corn planter roller drive mechanism of claim 3, wherein, The limiting device comprises a dynamic limiting block (507) on the bottom of the driven pulley convex blocks (504) close to the rear of the rotation direction of the driven pulley (5) and a static limiting block (508) on the top of the side wall close to the rear of the rotation direction of the driven pulley (5) of the convex block movable cavities (506), and the top of the dynamic limiting block (507) can be in contact with the bottom of the static limiting block (508).

5. The multiple-row corn planter roller drive mechanism of claim 2, wherein, The side of the driven pulley convex blocks (504) close to the rear of the rotation direction of the driven pulley (5) is provided with a shielding block (509) for shielding the convex block movable cavities (506).

6. The multiple-row corn planter roller drive mechanism of claim 2, wherein, The driven pulley (5) comprises a middle wheel (501) and side plates (502) which are detachably connected to the two sides of the middle wheel (501), and the convex block movable cavities (506) are located on the middle wheel (501).

7. The multiple-row corn planter roller drive mechanism of claim 6, wherein, The convex block hinge shaft (505) of the driven pulley convex blocks (504) is connected to the side plates (502).

8. The multiple-row corn planter roller drive mechanism of claim 6, wherein, After the fixed bolt (10) passes through the side plates (502), it is threadedly connected to the middle wheel (501).

9. The multiple-row corn planter row unit drive mechanism of any of claims 1-8, wherein, The adjacent two sowing roller shafts (2) are provided with a connecting shaft (3), and the sowing roller shaft (2) and the connecting shaft (3) are connected through a universal joint (4).

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