Grain weighing device for a grain damage measuring apparatus

Abstract

The application discloses a kind of grain loss determination equipment with grain weighing device, including sieve, sieve box, rudder support, rudder, weighing sensor, grain collecting tank, conveying belt assembly and matching conveying belt motor, sieve is assembled in the upper portion of sieve box, sieve box is located above conveying belt assembly;Conveying belt assembly is equipped with rudder, rudder shaft is sequentially connected rudder swing arm, weighing sensor;Weighing sensor and collecting tank are provided with flexible pull belt hoisting, flexible zip pull suspension is provided between conveying belt and collecting tank, sieve uses adjustable fish scale blade, conveying belt surface is provided with grain baffle, rudder selects double-shaft large-torque type, the device integrates screening, conveying, weighing, automatic unloading structure, flexible suspension structure can isolate equipment vibration, conveying belt avoids grain residue, rudder realizes automatic unloading, reduces manual operation, adapts to wheat, corn, soybean and other crops grain loss detection, improves weighing precision and field operation efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of grain harvester identification and testing equipment, specifically a grain weighing device for grain loss determination equipment. Background Technology

[0002] With the rapid popularization of agricultural mechanization in China, combine harvesters are commonly used for field operations of grains such as wheat, corn, and soybeans. In the performance evaluation test of grain harvesters, grain loss rate is the core test indicator. At present, field grain loss measurement is mainly done manually, and there is a lack of complete sets of equipment that can be integrated into harvesters to realize automatic screening, collection, and weighing.

[0003] Traditional testing methods require multiple operators to work together, manually sifting and separating grains, and manually transferring grains to an external weighing platform. This requires a large amount of manpower and has low efficiency. In addition, the continuous vibration of the harvester during operation can easily cause large measurement errors in the external weighing equipment. The manual transfer and dumping of grains can easily damage the sample grains, and a small amount of grains can easily remain in the sieve box and conveying channel, directly reducing the accuracy of grain loss detection data. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a grain weighing device for grain loss measurement equipment, which integrates screening, conveying, automatic weighing and automatic unloading structure, simplifies field testing procedures, reduces manpower input and improves the stability and reliability of weighing data.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a grain weighing device for grain loss measurement equipment, comprising a sieve, a sieve box, a servo motor bracket, a servo motor, a weighing sensor, a grain collection box, a conveyor belt assembly, and a conveyor belt motor;

[0006] The sieve is fixed to the upper part of the sieve box, which is connected to an external power mechanism to synchronously drive the sieve to swing back and forth, thereby achieving grain screening.

[0007] The screen box is disposed above the conveyor belt assembly, and a servo motor bracket is fixed on the conveyor belt assembly, with the servo motor mounted on the servo motor bracket;

[0008] The servo motor's rotation shaft is sequentially fixedly connected to the servo motor swing arm and the weighing sensor. A hoisting connector is provided between the weighing sensor and the grain collection box. A tension connector is provided between the conveyor belt assembly and the grain collection box. The conveyor belt assembly is equipped with a conveyor belt motor.

[0009] As a preferred embodiment of the present invention, the hoisting connector is a flexible strap, and the pulling connector is a flexible zipper;

[0010] The two ends of the flexible belt are respectively connected to the weighing sensor and the grain collection box by bolts;

[0011] The two ends of the flexible zipper are respectively connected to the conveyor belt assembly and the grain collection box by bolts;

[0012] The flexible strap and flexible zipper together suspend the grain collection box.

[0013] As a preferred embodiment of the present invention, the sieve has a fish-scale-shaped blade structure and is fixed to the upper part of the sieve box by bolts, and the opening degree of the fish-scale-shaped blades of the sieve is adjustable.

[0014] As a preferred embodiment of the present invention, the load cell is fixed on a load cell mounting plate, and the load cell mounting plate is fixed on the outside of the rotating shaft of the servo motor.

[0015] As a preferred embodiment of the present invention, the surface of the conveyor belt assembly is provided with seed baffles.

[0016] As a preferred embodiment of the present invention, the servo motor is a dual-axis high-torque servo motor.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The grain loss determination equipment integrates grain screening, collection and conveying, online weighing, and automatic unloading functions into an integrated mechanical structure, replacing the traditional manual screening, transfer, and weighing operations by multiple people, which greatly reduces the manpower input and operating costs of grain loss identification tests; the flexible connection structure of the grain collection box, which uses flexible belts and flexible zippers to suspend the grain collection box, can isolate the vibration of the harvester and the sieve box from being transmitted to the weighing sensor, and can complete online weighing without stopping the machine, reducing weighing errors and shortening the time spent on field testing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall exploded structure of the present invention.

[0020] In the diagram: 1. Screen, 2. Screen box, 3. Steering motor bracket, 4. Steering motor, 5. Steering motor swing arm, 6. Weighing sensor mounting plate, 7. Weighing sensor, 8. Flexible belt, 9. Particle collection box, 10. Flexible zipper, 11. Conveyor belt assembly, 12. Conveyor belt motor, 13. Particle baffle. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments (for ease of description and understanding, the following refers to...). Figure 1(The above is described above). Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0022] like Figure 1-2 The present invention provides a technical solution: a grain weighing device for grain loss measurement equipment, which mainly consists of three parts: a screening unit, a conveying unit, and a weighing and turning unit.

[0023] The screening unit includes a sieve 1 and a sieve box 2. The sieve 1 has a fish scale-shaped blade structure and is fixedly installed on the upper end of the sieve box 2 by bolts. The opening of the fish scale blades can be manually adjusted to meet the screening needs of grains with different particle sizes.

[0024] The screen box 2 is connected to an external reciprocating swing power mechanism. The power mechanism drives the screen box 2 and the screen 1 to swing back and forth synchronously, which separates the whole grains in the mixture discharged from the harvester. The grains fall into the lower conveyor belt assembly 11 by their own weight.

[0025] The conveying unit includes a conveyor belt assembly 11 and a conveyor belt motor 12. The conveyor belt assembly 11 is horizontally arranged directly below the screen box 2, and the conveyor belt motor 12 is a drive source connected to the conveyor belt assembly 11.

[0026] The conveyor belt assembly 11 has raised grain baffles 13 integrally set on the surface of the belt body to prevent the grains from sliding backward when the field ground is tilted. All the grains that fall off when the screen box 2 shakes are conveyed to the end with the conveyor belt.

[0027] The weighing and flipping unit includes a servo motor bracket 3, a servo motor 4, a servo motor swing arm 5, a weighing sensor mounting plate 6, a weighing sensor 7, a flexible pull belt 8, a grain collection box 9, and a flexible zipper 10.

[0028] The servo bracket 3 is bolted to the side wall of the discharge end of the conveyor belt assembly 11. The servo 4 is a dual-shaft high-torque servo and is locked and installed on the servo bracket 3.

[0029] Servo 4 has its servo arm 5 and load cell mounting plate 6 fixed to the outer side of its rotation axis in sequence. The load cell 7 is bolted to the load cell mounting plate 6.

[0030] The lower end of the weighing sensor 7 is suspended by the flexible pull belt 8 to the grain collection box 9. The side wall of the conveyor belt assembly 11 is connected to the side of the grain collection box 9 by a flexible zipper 10. The grain collection box 9 is located below the discharge port of the conveyor belt assembly 11.

[0031] Both ends of the flexible pull belt 8 and the flexible zipper 10 are fixed with bolts. The two work together to form a flexible suspension support structure, which lifts the grain collection box 9 and isolates the vibration of the whole machine from the interference of the sensor measurement.

[0032] Among them, the flexible pull strap 8 and the flexible zipper 10 are both made of flexible materials and can be bent when subjected to force.

[0033] In use: The grain mixture is screened by sieve 1, and the grains fall into the conveyor belt assembly 11. The conveyor belt motor 12 drives the conveyor belt assembly 11 to rotate, and the grains are transported to the grain collection box 9 at the end. After the grain collection box 9 is full, the weighing sensor 7 collects the grain weight data and transmits it to the outside.

[0034] After the weight data is collected, the servo motor 4 drives the rotating shaft and the servo motor swing arm 5 to rotate as a whole, which drives the weighing sensor 7, the flexible belt 8 and the grain collection box 9 to rotate synchronously, automatically emptying the grains in the collection box. After the unloading is completed, the servo motor 4 rotates in the opposite direction, and the grain collection box 9 is reset, waiting for the next round of collection and weighing operation.

[0035] The parts of the invention not described in detail are prior art. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grain weighing device for grain loss measurement equipment, characterized in that: Includes a sieve (1), a sieve box (2), a servo motor bracket (3), a servo motor (4), a weighing sensor (7), a grain collection box (9), a conveyor belt assembly (11), and a conveyor belt motor (12). The sieve (1) is fixed on the upper part of the sieve box (2), and the sieve box (2) is connected to an external power mechanism, which synchronously drives the sieve (1) to swing back and forth to achieve grain screening; The screen box (2) is located above the conveyor belt assembly (11), and a servo bracket (3) is fixed on the conveyor belt assembly (11). The servo (4) is installed on the servo bracket (3). The rotating shaft of the servo motor (4) is fixedly connected to the servo motor swing arm (5) and the weighing sensor (7) in sequence. The weighing sensor (7) is provided with a hoisting connector between it and the grain collection box (9). The conveyor belt assembly (11) is provided with a traction connector between it and the grain collection box (9). The conveyor belt assembly (11) is equipped with a conveyor belt motor (12).

2. The grain weighing device for grain loss measurement equipment according to claim 1, characterized in that: The hoisting connector is a flexible strap (8), and the pulling connector is a flexible zipper (10). The flexible belt (8) is connected to the weighing sensor (7) and the grain collection box (9) at both ends by bolts; The flexible zipper (10) is connected to the conveyor belt assembly (11) and the grain collection box (9) at both ends by bolts; The flexible pull belt (8) and the flexible zipper (10) together suspend the grain collection box (9).

3. The grain weighing device for grain loss measurement equipment according to claim 1, characterized in that: The sieve (1) has a fish-scale blade structure and is fixed to the upper part of the sieve box (2) by bolts. The opening degree of the fish-scale blade of the sieve (1) is adjustable.

4. The grain weighing device for grain loss measurement equipment according to claim 1, characterized in that: The load cell (7) is fixed on the load cell mounting plate (6), which is fixed to the outside of the rotation shaft of the servo motor (4).

5. The grain weighing device for grain loss measurement equipment according to claim 1, characterized in that: The conveyor belt assembly (11) has a grain baffle (13) on its belt surface.

6. The grain weighing device for grain loss measurement equipment according to claim 1, characterized in that: The servo motor (4) is a dual-axis high-torque servo motor.

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