CN-121995070-A - Automatic grain warehouse-in sampling device and sampling operation method

CN121995070ACN 121995070 ACN121995070 ACN 121995070ACN-121995070-A

Abstract

The invention discloses an automatic grain warehousing sampling device and a sampling operation method, comprising a machine body and a lifting seat positioned at the upper end of the machine body, wherein a telescopic material taking arm with a tooth slot on the side surface is transversely arranged in the lifting seat, a motor is arranged in the lifting seat, the telescopic material taking arm is driven by the motor to realize horizontal movement left and right, one end of the telescopic material taking arm is fixedly connected with a material taking groove, a material receiving groove is arranged on the side surface of the lifting seat, the material receiving groove is a material inlet for taking back, the material receiving groove corresponds to the lower part of the telescopic material taking arm, when the telescopic material taking arm drives the material taking groove to move to the position above the material receiving groove, a sample taking outlet is arranged at the lower end part of the lifting seat, the sample outlet is communicated with the material receiving groove, and a basin is placed at the sample outlet. When grains are discharged on the belt conveyor, grain sampling can be automatically realized through telescopic driving, and sampling can be realized by setting a time value such as automatically extending out of the arm every few minutes to take out grains.

Inventors

MENG ZHONGSEN
WANG YU
YAO HUI
Chen Zequ
WU JUNYOU
Shi Tingbiao
Zhou Yunju
LI XINGZHU
Wu Renfa
Mai Yanjuan
WU YUNLONG
LI SHUGUANG

Assignees

中央储备粮海口直属库有限公司

Dates

Publication Date: 20260508
Application Date: 20251224

Claims (7)

1. The automatic grain warehousing sampling device is characterized by comprising a machine body (1) and a lifting seat (2) positioned at the upper end of the machine body (1), wherein a telescopic material taking arm (3) with a tooth slot on the side surface is transversely arranged in the lifting seat (2), a motor is arranged in the lifting seat (2), a gear meshed with the tooth slot is arranged at the rotating end of the motor, and the telescopic material taking arm (3) is driven by the motor to realize horizontal movement left and right, so that the gear can be used for telescopic sampling; The one end fixed connection of flexible material taking arm (3) gets silo (4), the side of lifting seat (2) is provided with connects silo (5), connect silo (5) to be the feed inlet that the sample was got back, connect silo (5) to correspond the below of flexible material taking arm (3), when flexible material taking arm (3) drive material taking arm (4) move to connect silo (5) top department, to connect silo (5) in emit the sample of getting, the tip is provided with sample export (6) under lifting seat (2), sample export (6) and connect silo (5) intercommunication, sample export (6) here puts basin and connects the sample.
2. The automatic grain warehousing sampling device according to claim 1 is characterized in that a lifting seat (2) is located in a machine body (1) to achieve lifting, a motor is arranged in the machine body (1), tooth grooves are formed in the outer side of the lifting seat (2), the lifting seat (2) is driven by the motor to achieve lifting through gears, and lifting and lowering of the lifting seat (2) are achieved through gear transmission.
3. The automatic grain warehousing sampling device according to claim 1 is characterized in that a touch screen (7) and a control button area (8) are arranged at the upper end part of the surface of a machine body (1), the touch screen (7) can set sampling speed, sampling time interval and telescopic material taking length, and the control button area (8) comprises an alarm button, an operation button, a start-stop button and a lifting and descending adjusting button of a lifting seat (2).
4. The grain warehousing automatic sampling device according to claim 1, wherein the material taking groove (4) comprises a material taking groove body (4-1), a material outlet (4-2) is formed in the bottom of the material taking groove body (4-1), a movable material outlet stop block (4-3) is arranged at the material outlet (4-2), through holes (4-4) are formed in two ends of the material outlet stop block (4-3), two ends of the material outlet stop block (4-3) are inserted on two connecting columns (4-5) at the bottom of the material taking groove body (4-1) through the through holes (4-4), springs (4-6) are arranged on the connecting columns (4-5), the material outlet stop block (4-3) can horizontally move along the connecting columns (4-5), and the springs (4-6) can enable the material outlet stop block (4-3) to return.
5. The automatic grain warehousing sampling device according to claim 1 is characterized in that a stop lever (5-1) for controlling the opening of a discharging stop block (4-3) is arranged in an inner cavity of a receiving trough (5), the stop lever (5-1) and the discharging stop block (4-3) are positioned at the same horizontal position, when the telescopic material taking arm (3) drives the material taking trough (4) to integrally sample and then move rightwards to the receiving trough (5), the stop lever (5-1) stops the discharging stop block (4-3) to limit, then a discharging port (4-2) at the bottom of the material taking trough (4-1) is exposed, a sample in the material taking trough (4) is discharged into the receiving trough (5) through the discharging port (4-2), when the telescopic material taking arm (3) drives the material taking trough (4) to integrally move leftwards, a spring (4-6) can enable the material taking stop block (4-3) to return, namely the material taking stop block (5-1) to touch the position rightwards after the whole sampling, the material taking stop lever is automatically opened, the material taking trough (4-1) is pulled up, the material taking stop lever is further, the sample is stretched out, the material taking trough (4-1) is elastically returns to the spring-back, and the sample stop lever is opened, and the sample stop lever is closed by the spring returns to the spring to the stop lever (1 after the material is opened.
6. The automatic grain warehousing sampling device according to claim 1, wherein a laser sensor (9) is arranged on the side face of the lifting seat (2), the laser sensor (9) corresponds to the sampling direction, and the laser sensor senses that grains are discharged to control sampling according to set time.
7. A sampling operation method of an automatic sampling device for grain warehouse-in according to claim 1 is characterized in that the operation process is that the 'operation button' of a control button area (8) is pressed, the device enters an automatic sampling mode, a laser sensor (9) continuously monitors grain conveying conditions in a sampling direction, and when sensing normal grain conveying, the device automatically starts a sampling process according to a set sampling time interval: The motor drives the gear to rotate, drives the telescopic material taking arm (3) to horizontally extend leftwards, the material taking groove (4) extends into a grain layer of the belt conveyor along with the telescopic arm, at the moment, the material discharging stop block (4-3) shields the material discharging hole (4-2) under the elastic force of the spring (4-6), and grain samples are scooped into the material taking groove body (4-1); After sampling is completed, the motor reversely rotates to drive the telescopic material taking arm (3) to horizontally return to the right, when the material taking groove (4) moves to the position above the material receiving groove (5), a stop lever (5-1) in the material receiving groove (5) is contacted with and limited by the material discharging stop block (4-3), the material discharging stop block (4-3) is forced to horizontally slide along the connecting column (4-5), the spring (4-6) is compressed, and a material outlet (4-2) at the bottom of the material taking groove body (4-1) is exposed; Grain samples in the material taking groove (4) fall into the material receiving groove (5) through the material outlet (4-2), and finally flow into the sample receiving basin below through a communication channel between the material receiving groove (5) and the sample outlet (6); After the sample is discharged, the telescopic material taking arm (3) is continuously reset leftwards, the material discharging stop block (4-3) is separated from the limit of the stop lever (5-1), and reversely slides along the connecting column (4-5) under the action of the return elastic force of the spring (4-6), the material discharging port (4-2) is shielded again, and the next sampling instruction is waited.

Description

Automatic grain warehouse-in sampling device and sampling operation method Technical Field The invention relates to the field of automatic sampling operation during grain warehousing, in particular to an automatic grain warehousing sampling device and a sampling operation method. Background In the grain storage industry, quality control of grain in storage is a core link for guaranteeing the safety storage, circulation and processing quality of grain, and is directly related to national grain safety strategy landing, enterprise storage benefit and terminal consumption quality. According to the industry specification requirements of grain storage management method, grain quality safety supervision method and the like, the key indexes such as moisture, impurities, granularity, volume weight and the like of grains in each batch are required to be detected in real time during grain storage, and scientific and standard sampling is the premise of ensuring the true and effective detection data, and the accuracy and timeliness of the method directly determine the success or failure of quality control. At present, a grain warehousing sampling mode commonly adopted in the industry is manual sampling, namely, in the process of conveying grains to a warehouse through a belt conveyor, a field custodian needs to be close to the belt conveyor which runs at a high speed, and the grain samples are collected through a manual grabbing mode and then conveyed to an inspection area for index detection. However, the conventional sampling method has a plurality of technical defects which are difficult to overcome, and the conventional sampling method cannot adapt to the large-scale continuous operation requirements of modern grain storage, and is particularly characterized in the following aspects: 1. The labor intensity is high, the operation efficiency is low, the single-batch warehousing quantity can reach hundreds of tons or even thousands of tons in the centralized grain warehousing peak period, custodians need to continuously repeat the bending and stretching grasping actions, the whole process is required to keep up with the conveying flow of each grain, a great deal of physical effort and energy are consumed, the sampling frequency is unstable and the sampling interval is too long due to the fatigue of personnel, the requirements of modern warehousing on continuous and high-frequency sampling detection are difficult to meet, and the integral efficiency of warehousing operation is severely restricted. 2. The manual sampling is greatly influenced by operation habits, subjective judgment and fatigue states, obvious randomness and subjectivity exist, that is, part of operators only collect surface samples of grains for simplifying the process, or the sampling quantity and the sampling position are not uniform, so that the collected samples cannot reflect the real quality condition of the whole batch of grains, quality misjudgment is easily caused, meanwhile, the manual sampling lacks a standardized operation process, the sampling method difference of different operators further aggravates the discreteness of detection data, and the accuracy of quality control is influenced. 3. The safety risk of operation is prominent, namely the surface of the belt moves at a high speed when the belt conveyor runs, hands, clothes and other equipment are easy to be involved in when a safekeeper takes samples manually at a short distance, potential safety hazards such as mechanical injury and fall exist, the sight is limited when the belt conveyor operates at night or under severe weather conditions, the safety risk is further amplified, and serious threat is brought to the personal safety of operators. 4. The method is difficult to adapt to the large-scale storage requirement, along with the modern transformation of the grain storage industry, the storage scale of large grain warehouse and grain processing enterprises is continuously enlarged, the conveying speed and single storage quantity of a belt conveyor are obviously improved, the defects of high manpower configuration cost and low operation efficiency of the traditional manual sampling mode are more obvious, and the operation rhythm of a large-scale and automatic storage system cannot be matched. In summary, the existing manual sampling method has significant shortcomings in terms of labor intensity, sampling precision, operation safety, large-scale suitability and the like, and a solution capable of breaking through the technical bottleneck is needed in the industry. Under the background, research and development of an automatic grain warehousing sampling device with automation, precision, high efficiency and safety, realizes standardized and continuous operation of a sampling process, and has become an urgent need for promoting quality control upgrading and adapting to modern operation modes in the grain warehousing industry. Disclosure of Invention Therefore, in order to overcome the