Fertilizing and sowing driving mechanism

Abstract

The utility model discloses a fertilizing and seeding driving mechanism which comprises a transmission shaft and a plurality of seeding boxes, seeding wheels are rotatably connected in the seeding boxes, and the fertilizing and seeding driving mechanism is characterized in that two friction plates which can be close to or far away from each other are connected to the seeding wheels in a sliding manner; a reset mechanism is mounted between one side, far away from the other friction plate, of each friction plate and the seeding wheel, a friction wheel is mounted on the transmission shaft, and the two friction plates can clamp the friction wheel. During normal use, the transmission shaft and the friction wheel rotate, the friction plate and the seeding wheel are driven to rotate through friction force, and normal seeding work can be completed at the moment. When a certain seeding wheel is clamped and the resistance borne by the seeding wheel is greater than the friction force between the friction wheel and the friction plate, the friction wheel and the friction plate move relatively, so that the seeding wheel or the seeding box is prevented from being damaged due to greater force borne by the seeding wheel, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a fertilizing and sowing driving mechanism. Background Art

[0002] The existing fertilization and sowing drive mechanism includes a drive shaft and several seeding boxes. The seeding box is mounted on the upper end of the seeding box, and the funnel and seeding tube are mounted on the lower end of the seeding box. A seeding wheel is rotatably connected to the seeding box, and the seeding wheel has several seeding slots on its side. The drive shaft is fixedly connected to the seeding wheel, and the seeding box is mounted on the frame. The drive shaft is in transmission connection with the power unit. During normal use, the drive shaft drives the seeding wheel to rotate, and normal sowing can be completed.

[0003] The above technical solution has the following disadvantages: when a certain seeding wheel is stuck, the seeding wheel is still driven by the transmission shaft, and the seeding wheel is subjected to a large force, which may easily cause damage to the seeding wheel or the seeding box, thereby reducing the service life of the equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a fertilizing and sowing drive mechanism to solve the above problems, which can prevent the sowing wheel from being subjected to a greater force and causing damage to the sowing wheel or the sowing box when a sowing wheel is stuck.

[0005] To achieve the above-mentioned purpose, the utility model discloses a fertilizing and sowing drive mechanism, which includes a transmission shaft and several seeding boxes, and a seeding wheel is rotatably connected inside the seeding box. The utility model is characterized in that two friction plates that can approach or move away from each other are slidably connected to the seeding wheel, and a reset mechanism is installed between the side of each friction plate away from the other friction plate and the seeding wheel, and a friction wheel is installed on the transmission shaft, and the two friction plates can clamp the friction wheel.

[0006] During normal use, the drive shaft and friction wheel rotate, and the friction force drives the friction plate and seeding wheel to rotate, allowing normal seeding to be completed. When a seeding wheel gets stuck and the resistance to the seeding wheel is greater than the friction between the friction wheel and the friction plate, relative movement occurs between the friction wheel and the friction plate, preventing the seeding wheel from being subjected to greater force and causing damage to the seeding wheel or seeding box, thereby extending the service life of the equipment.

[0007] Preferably, at least two parallel guide posts are mounted on the seeding wheel, and both ends of the friction plate are slidably connected to the guide posts respectively.

[0008] When in use, the friction plate slides along the guide column and moves smoothly.

[0009] Preferably, the reset mechanism includes a compression spring sleeved on the guide column, one end of the compression spring abuts against the friction plate, and the other end abuts against the seeding wheel.

[0010] When in use, the compression spring pushes the friction plate so that the two friction plates can clamp the friction wheel. This structure is simple, reliable and easy to process and manufacture.

[0011] Preferably, both ends of the guide column are threadedly connected with an adjusting nut, and the adjusting nut is located between the compression spring and the seeding wheel.

[0012] When in use, the adjusting nut is rotated to adjust the compression amount of the compression spring, thereby adjusting the friction force between the friction plate and the friction wheel. It is easy to use.

[0013] Preferably, a plurality of adjusting washers detachably connected to the guide posts are placed between the adjusting nut and the seeding wheel.

[0014] When in use, the adjusting washer is used to prevent the adjusting nut from moving and improve stability.

[0015] Preferably, a guide post through hole is provided on the adjusting gasket, and the guide post through hole is connected to the side of the adjusting gasket through an open groove.

[0016] When in use, the adjustment gasket is put on the guide column through the open slot for easy installation.

[0017] Preferably, the adjusting gasket has a positioning hole, a positioning pin and a stopper, the positioning hole of one adjusting gasket can cooperate with the positioning pin of another adjusting gasket, and the stopper of one adjusting gasket can cooperate with the open groove of another adjusting gasket.

[0018] When in use, the two adjusting washers can be assembled into a complete ring to prevent the adjusting washers from falling off the guide column.

[0019] Preferably, a friction plate movable cavity is provided on the seeding wheel, and the friction plate is located in the friction plate movable cavity.

[0020] This structure is compact and takes up little space.

[0021] Preferably, the cross-sectional shape of the friction plate is arc-shaped, and the cross-sectional shape of the friction wheel is circular.

[0022] When in use, the contact area between the friction plate and the friction wheel is large, the power transmission is reliable, and the service life is extended.

[0023] In summary, the beneficial effects of the present invention are as follows: during normal use, the drive shaft and friction wheel rotate, and the friction force drives the friction plate and seeding wheel to rotate, at this time, normal seeding can be completed. When a seeding wheel is stuck and the resistance to the seeding wheel is greater than the friction between the friction wheel and the friction plate, relative movement occurs between the friction wheel and the friction plate, preventing the seeding wheel from being subjected to greater force and causing damage to the seeding wheel or seeding box, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional structural diagram of a fertilizing and sowing drive mechanism of the utility model;

[0025] Figure 2 This is a front structural diagram of a fertilizing and sowing drive mechanism of the utility model;

[0026] Figure 3 yes Figure 2 Structural diagram of the middle section AA;

[0027] Figure 4 yes Figure 3 Schematic diagram of the structure of the middle section BB;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of an angle adjustment gasket in a fertilizing and sowing drive mechanism of the utility model;

[0029] Figure 6 It is a three-dimensional structural schematic diagram of another angle of the adjusting gasket in the fertilizing and sowing driving mechanism of the utility model.

[0030] In the figure: 1. Drive shaft; 2. Seeding box; 3. First drive shaft through hole; 4. Seeding box; 5. Funnel; 6. Seeding tube; 7. Seeding wheel; 8. Seeding groove; 9. Friction wheel; 10. Friction plate; 11. Guide column; 12. Compression spring; 13. Adjusting nut; 14. Adjusting gasket; 15. Friction plate movable cavity; 16. Second drive shaft through hole; 17. Guide column through hole; 18. Open groove; 19. Stop block; 20. Positioning hole; 21. Positioning pin. DETAILED DESCRIPTION

[0031] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0032] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0033] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0036] like Figures 1 to 4 As shown, a fertilizing and sowing drive mechanism includes a transmission shaft 1 and several sowing boxes 2. A seed box 4 is installed at the upper end of the sowing box 2, and a funnel 5 and a sowing tube 6 are installed at the lower end of the sowing box 2. A first transmission shaft through hole 3 is provided at both ends of the sowing box 2. A sowing wheel 7 is rotatably connected to the sowing box 2, and a plurality of sowing grooves 8 are provided on the side of the sowing wheel 7. Two friction plates 10 that can move closer to or away from each other are slidably connected to the sowing wheel 7. A reset mechanism is installed between the side of each friction plate 10 away from the other friction plate 10 and the sowing wheel 7. A friction wheel 9 is installed on the transmission shaft 1, and the two friction plates 10 can clamp the friction wheel 9. Specifically, the sowing box 2 is installed on the frame, and the transmission shaft 1 is connected to the power unit in a transmission manner. This is existing technology and will not be described in detail here. During normal use, the transmission shaft 1 and friction wheel 9 rotate, and the friction force drives the friction plate 10 and the sowing wheel 7 to rotate. At this time, normal sowing work can be completed. When a certain seeding wheel 7 is stuck and the resistance to the seeding wheel 7 is greater than the friction force between the friction wheel 9 and the friction plate 10, relative movement occurs between the friction wheel 9 and the friction plate 10, thereby preventing the seeding wheel 7 from being subjected to a greater force and causing damage to the seeding wheel 7 or the seeding box 2, thereby improving the service life of the equipment.

[0037] The seeding wheel 7 is equipped with at least two parallel guide posts 11, with the ends of the friction plate 10 slidingly connected to the guide posts 11. Preferably, there are four guide posts 11, and the four guide posts 11 are arranged in a one-to-one correspondence with the four corners of the friction plate 10. During use, the friction plate 10 slides along the guide posts 11 and moves smoothly. The reset mechanism includes a compression spring 12 that is sleeved on the guide post 11, with one end of the compression spring 12 abutting against the friction plate 10 and the other end abutting against the seeding wheel 7. During use, the compression spring 12 pushes the friction plate 10, allowing the two friction plates 10 to clamp the friction wheel 9. This structure is simple, reliable, and easy to manufacture. Adjustment nuts 13 are threadedly connected to both ends of the guide post 11, and the adjustment nuts 13 are located between the compression spring 12 and the seeding wheel 7. During use, the adjustment nuts 13 are turned to adjust the compression of the compression spring 12, thereby adjusting the friction between the friction plate 10 and the friction wheel 9, making it easy to use.

[0038] Specifically, the seeding wheel 7 defines a friction plate movable cavity 15, within which the friction plate 10 is located. Second drive shaft holes 16 are provided at both ends of the seeding wheel 7. This compact structure occupies minimal space. The friction plate 10 has an arcuate cross-section, while the friction wheel 9 has a circular cross-section. During operation, the contact area between the friction plate 10 and the friction wheel 9 is large, ensuring reliable power transmission and extending service life.

[0039] Specifically, a plurality of adjusting washers 14 detachably connected to the guide post 11 are placed between the adjusting nut 13 and the seeding wheel 7. During use, the adjusting washers 14 are used to prevent the adjusting nut 13 from moving and improve stability.

[0040] like Figure 5 、 6 As shown, the adjusting washer 14 is provided with a guide post through-hole 17, which communicates with the side of the adjusting washer 14 via an open slot 18. During use, the adjusting washer 14 is placed onto the guide post 11 via the open slot 18 for easy installation. The adjusting washer 14 has a positioning hole 20, a positioning pin 21, and a stopper 19. The positioning hole 20 of one adjusting washer 14 can mate with the positioning pin 21 of another adjusting washer 14, and the stopper 19 of one adjusting washer 14 can mate with the open slot 18 of the other adjusting washer 14. During use, the two adjusting washer 14 can be assembled into a complete ring, preventing the adjusting washer 14 from separating from the guide post 11.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A fertilizing and sowing drive mechanism, comprising a transmission shaft (1) and a plurality of sowing boxes (2), wherein a sowing wheel (7) is rotatably connected to the sowing box (2), characterized in that: Two friction plates (10) that can move closer to or farther away from each other are slidably connected to the seeding wheel (7), a reset mechanism is installed between the seeding wheel (7) and the side of each friction plate (10) that is away from the other friction plate (10), and a friction wheel (9) is installed on the transmission shaft (1), and the two friction plates (10) can clamp the friction wheel (9).

2. The fertilization and sowing drive mechanism according to claim 1, characterized in that: At least two parallel guide posts (11) are mounted on the seeding wheel (7), and both ends of the friction plate (10) are slidably connected to the guide posts (11).

3. The fertilizing and sowing drive mechanism according to claim 2, characterized in that: The reset mechanism comprises a compression spring (12) sleeved on the guide column (11), one end of the compression spring (12) abuts against the friction plate (10), and the other end abuts against the seeding wheel (7).

4. The fertilizing and sowing drive mechanism according to claim 3, characterized in that: Both ends of the guide column (11) are threadedly connected with an adjusting nut (13), and the adjusting nut (13) is located between the compression spring (12) and the seeding wheel (7).

5. The fertilizing and sowing drive mechanism according to claim 4, characterized in that: A plurality of adjusting washers (14) detachably connected to the guide column (11) are placed between the adjusting nut (13) and the seeding wheel (7).

6. The fertilizing and sowing drive mechanism according to claim 5, characterized in that: A guide post through hole (17) is provided on the adjusting gasket (14), and the guide post through hole (17) is connected to the side of the adjusting gasket (14) through an open groove (18).

7. The fertilizing and sowing drive mechanism according to claim 6, characterized in that: The adjusting gasket (14) has a positioning hole (20), a positioning pin (21) and a stopper (19). The positioning hole (20) of one adjusting gasket (14) can be matched with the positioning pin (21) of another adjusting gasket (14), and the stopper (19) of one adjusting gasket (14) can be matched with the open groove (18) of another adjusting gasket (14).

8. The fertilizing and sowing drive mechanism according to any one of claims 1 to 7, characterized in that: A friction plate movable cavity (15) is provided on the seeding wheel (7), and the friction plate (10) is located in the friction plate movable cavity (15).

9. The fertilizing and sowing drive mechanism according to any one of claims 1 to 7, characterized in that: The cross-sectional shape of the friction plate (10) is arc-shaped, and the cross-sectional shape of the friction wheel (9) is circular.

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