Weight-adjustable fertilizer metering and discharging mechanism

Abstract

The utility model discloses a weight-adjustable fertilizer metering and discharging mechanism which comprises a discharging assembly, the discharging assembly comprises a feeding port, a flange connecting end and a discharging cylinder, the feeding port is formed in the upper end of the discharging cylinder in the axial direction, the flange connecting end is arranged at the radial end of the discharging cylinder and close to the feeding port, and the discharging cylinder is connected with the flange connecting end. The flange connecting end is connected with a servo motor assembly, a metering screw assembly is arranged at the other end of the discharging cylinder in a penetrating mode, one end of the metering screw assembly is connected with the servo motor assembly, and the other end of the metering screw assembly is fixedly connected with a cover plate through a fastener. The metering screw rod is arranged at the bottom outlet of the fertilizer bin, so that the fertilizer in the fertilizer bin is conveyed into the thread groove of the screw rod, the thread grooves with different capacities are arranged, the fertilizer is conveyed to the discharge port, and the output quantity of the fertilizer every time is adjusted by adjusting the number of rotation turns of the servo motor. The effect of accurately adjusting the weight of the fertilizer is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of garden machinery, in particular to a fertilizer metering and discharging mechanism with adjustable weight. Background Art

[0002] With the advancement of agricultural science and technology, agricultural machinery has been rapidly developed and widely used to improve production efficiency, increase asset utilization, and increase product added value. Currently, most fertilizer dispensers use a one-time metering outlet, which makes the fertilizer dispenser inconvenient to use, resulting in uneven fertilization and an inability to adjust the fertilizer dosage according to actual conditions, leading to fertilizer waste. Furthermore, the complex structure of current fertilizer dispensers increases production costs for farmers.

[0003] Based on this, a fertilizer metering and discharging mechanism with adjustable weight is proposed. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the present invention provides a fertilizer metering and discharging mechanism with adjustable weight. In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A fertilizer metering and discharging mechanism with adjustable weight includes a discharging assembly, which includes a feed port, a flange connecting end and a discharging cylinder. The feed port is provided at the axial upper end of the discharging cylinder, and the flange connecting end is provided at one radial end of the discharging cylinder and close to the feed port. The flange connecting end is connected to a servo motor assembly, and a metering screw assembly is provided at the other end of the discharging cylinder. One end of the metering screw assembly is connected to the servo motor assembly, and the other end of the metering screw assembly is fixedly connected to a cover plate by a fastener.

[0006] Preferably, the discharge port of the discharge cylinder is arranged close to the cover plate and opposite to the feed port.

[0007] Preferably, the servo motor assembly includes a servo motor, a bearing 1 and a spline sleeve, the spline sleeve is provided at the output end of the servo motor, and the bearing 1 is provided between the servo motor and the spline sleeve.

[0008] Preferably, a skeleton oil seal is provided between the spline sleeve and the flange connection end, and a retaining ring is provided between the servo motor and the bearing.

[0009] Preferably, the metering screw assembly includes a screw, a bearing seat, a skeleton oil seal 2 and a bearing 2. One end of the screw passes through the discharge cylinder and is connected to the output end of the servo motor assembly. A bearing seat is provided at the other end of the screw. A skeleton oil seal 2 is provided in the bearing seat. A bearing 2 is provided in the bearing seat and in the skeleton oil seal 2.

[0010] Preferably, a second retaining ring is provided on the outside of the second bearing, and a connecting portion is provided at a position of the screw away from the second bearing, and the connecting portion is connected to the spline sleeve.

[0011] Preferably, the spiral groove of the screw has a length of 3-200 mm, a rotation angle of 15-45°, a diameter of 100-400 mm, and a U-shaped groove.

[0012] Preferably, the metering screw assembly and the discharge assembly are adapted to each other.

[0013] In summary, since the present invention adopts the above technical solution, the present invention has the following technical effects:

[0014] The weight-adjustable fertilizer metering and discharging mechanism of the utility model is arranged at the bottom outlet of the fertilizer bin, and the metering screw is rotated by a servo motor, so that the fertilizer in the fertilizer bin is transported into the screw thread groove. By setting thread grooves of different capacities and transporting the fertilizer to the discharge port, the output amount of the fertilizer each time is adjusted by adjusting the number of rotations of the servo motor, so as to achieve the effect of accurately adjusting the fertilizer weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of a fertilizer metering and discharging mechanism with adjustable weight according to the present utility model;

[0016] Figure 2 This is a cross-sectional view of a fertilizer metering and discharging mechanism with adjustable weight according to the present invention;

[0017] Figure 3 This is an exploded view of a fertilizer metering and discharging mechanism with adjustable weight.

[0018] Figure 4 This is a cross-sectional view of the metering screw assembly of the utility model;

[0019] Figure 5 This is an exploded view of the metering screw assembly of the utility model.

[0020] In the accompanying drawings, 1. discharge assembly; 11. feed port; 12. flange connection end; 13. discharge cylinder; 14. discharge port; 2. metering screw assembly; 21. screw; 22. bearing seat; 23. skeleton oil seal 2; 24. bearing 2; 25. snap ring 2; 26. connection part; 3. servo motor assembly; 31. servo motor; 32. bearing 1; 33. spline sleeve; 34. fastening screw; 35. skeleton oil seal 1; 36. snap ring 1; 4. cover plate; 5. fastener. DETAILED DESCRIPTION

[0021] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in this specification are merely provided to help readers gain a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-5 As shown, a fertilizer metering and discharging mechanism with adjustable weight includes a discharging component 1, and the discharging component 1 includes a feed port 11, a flange connecting end 12 and a discharging cylinder 13. The feed port 11 is provided at the axial upper end of the discharging cylinder 13, and a flange connecting end 12 is provided at one radial end of the discharging cylinder 13 and close to the feed port 11. The flange connecting end 12 is connected to the servo motor component 3, and a metering screw component 2 is provided at the other end of the discharging cylinder 13. One end of the metering screw component 2 is connected to the servo motor component 3, and the other end of the metering screw component 2 is fixedly connected to the cover plate 4 by a fastener 5 (including a fastening bolt, a fastening screw, etc.), and a discharge port 14 is provided at a position of the discharging cylinder 13 close to the cover plate 4 and opposite to the feed port 11.

[0024] In one embodiment, the servo motor assembly 3 includes a servo motor 31, a bearing 32, and a spline sleeve 33. The spline sleeve 33 is provided at the output end of the servo motor 31, and the bearing 32 is provided between the servo motor 31 and the spline sleeve 33. A skeleton oil seal 35 is provided between the spline sleeve 33 and the flange connection end 12, and a snap ring 36 is provided between the servo motor 31 and the bearing 32.

[0025] In one embodiment, the metering screw assembly 2 includes a screw 21, a bearing seat 22, a second skeleton oil seal 23, and a second bearing 24. One end of the screw 21 passes through the discharge cylinder 1 and is connected to the output end of the servo motor assembly 3. The other end of the screw 21 is provided with a bearing seat 33. The second skeleton oil seal 23 is located within the bearing seat 22. The second bearing 24 is located within the bearing seat 22 and within the second skeleton oil seal 23. A second retaining ring 25 is provided on the outside of the second bearing 24. A connecting portion 26 is provided on the screw 21 away from the second bearing 24. The connecting portion 26 is connected to the spline sleeve 33.

[0026] In one embodiment, the spiral groove of the screw 21 has a length of 3-200 mm, a rotation angle of 15-45°, a diameter of 100-400 mm, and a U-shaped groove.

[0027] In one embodiment, the metering screw assembly 2 is adapted to the discharge cylinder 13 of the discharge assembly 1 .

[0028] To sum up, the working principle of the fertilizer metering and discharging mechanism with adjustable weight of the present invention is: the servo motor assembly 3 and the skeleton oil seal 35, the spline sleeve 33, the bearing 32, the retaining ring 36, and the fastening screw 34 are assembled in sequence on the flange connection end 12 of the discharging assembly 1, and when the servo motor 31 rotates, the spline sleeve 33 is driven to rotate together.

[0029] The metering screw assembly 2, cover plate 4, and fasteners 5 (such as fastening screws and fastening bolts) are installed at one end of the discharge cylinder 13 of the discharge assembly 1. The connecting part 26 (i.e., the spline) of the metering screw 21 cooperates with the spline of the spline sleeve 33. When the spline sleeve 33 rotates, it drives the metering screw 21 to rotate, and transports the fertilizer to the discharge port 14 in a spiral manner. By calculating the weight of the fertilizer transported per rotation of the screw 21, the number of rotations of the servo motor 31 is accurately controlled to adjust the weight of the fertilizer each time, thereby achieving the effect of adjustable fertilizer weight.

[0030] 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 modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A fertilizer metering and discharging mechanism with adjustable weight, characterized in that: It includes a discharging component, which includes a feed port, a flange connecting end and a discharging cylinder. The feed port is provided at the axial upper end of the discharging cylinder, and the flange connecting end is provided at one radial end of the discharging cylinder and close to the feed port. The flange connecting end is connected to the servo motor component, and a metering screw component is provided at the other end that passes through the discharging cylinder. One end of the metering screw component is connected to the servo motor component, and the other end of the metering screw component is fixedly connected to the cover plate by a fastener.

2. A fertilizer metering and discharging mechanism with adjustable weight according to claim 1, characterized in that: The discharge port is arranged at a position of the discharge cylinder close to the cover plate and opposite to the feed port.

3. The fertilizer metering and discharging mechanism with adjustable weight according to claim 1, characterized in that: The servo motor assembly includes a servo motor, a bearing 1 and a spline sleeve. The spline sleeve is arranged at the output end of the servo motor, and the bearing 1 is arranged between the servo motor and the spline sleeve.

4. A fertilizer metering and discharging mechanism with adjustable weight according to claim 3, characterized in that: A skeleton oil seal is provided between the spline sleeve and the flange connection end, and a snap ring is provided between the servo motor and the bearing.

5. A fertilizer metering and discharging mechanism with adjustable weight according to claim 1 or 3, characterized in that: The metering screw assembly includes a screw, a bearing seat, a second skeleton oil seal and a second bearing. One end of the screw passes through the discharge cylinder and is connected to the output end of the servo motor assembly. The other end of the screw is provided with a bearing seat. The second skeleton oil seal is provided in the bearing seat. The second bearing is provided in the bearing seat and in the second skeleton oil seal.

6. The fertilizer metering and discharging mechanism with adjustable weight according to claim 5, characterized in that: A second snap ring is arranged outside the second bearing, and a connecting portion is arranged at a position of the screw away from the second bearing, and the connecting portion is connected to the spline sleeve.

7. The fertilizer metering and discharging mechanism with adjustable weight according to claim 5, characterized in that: The spiral groove of the screw has a length of 3-200 mm, a rotation angle of 15-45 degrees, a diameter of 100-400 mm, and a U-shaped groove.

8. The fertilizer metering and discharging mechanism with adjustable weight according to claim 1, characterized in that: The metering screw assembly and the discharging assembly are adapted to each other.

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