Hall magnetic detection device
By using the Hall sensor and indicator of the Hall magnetic detection device, the problem of incorrect identification of the N pole of the magnet was solved, the accuracy of magnet assembly and the efficiency of whole machine testing were improved, and rework waste was reduced.
Patent Information
- Application Number
- CN202520138515.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-01-21
AI Technical Summary
In the existing technology, magnets cannot effectively identify the N pole direction when assembling tracked grain combine harvesters, resulting in long repair time, waste of manpower, material resources and financial resources, and low pass rate of whole machine inspection.
Design a Hall magnetic detection device that uses a Hall sensor to detect the N pole of a magnet and provides real-time alerts to the operator via an alarm and a pass indicator light to ensure that the magnet is assembled correctly.
This improved the accuracy and efficiency of magnet polarity identification, reduced rework, and increased the pass rate of overall machine testing and assembly efficiency.
Smart Images

Figure CN223941090U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of Hall magnetic detection technology, and specifically to a Hall magnetic detection device. Background Technology
[0002] During the assembly of tracked grain combine harvesters, a magnetic detection device is installed at the top of the waste conveyor. The magnet is mounted on a locking sleeve and fixed to the top of the vertical auger. The blockage sensor can only detect the N pole of the magnet. When the blockage sensor cannot detect the N pole, a blockage alarm will sound in the machine's cab. Currently, when assembling the magnet, workers cannot accurately identify the N pole orientation. The magnet must be installed onto the machine, and the sensor must be powered on before an alarm is triggered to indicate an assembly error. This necessitates rework, which is time-consuming, wastes significant manpower, resources, and money, and results in a low first-pass yield rate for the entire machine. Therefore, adding a magnetic pole detection fixture during magnet assembly is urgently needed.
[0003] Currently, during magnet assembly, operators mainly rely on the markings on the parts to identify the N pole orientation. However, there are problems such as unclear incoming material markings, no markings, or incorrect marking directions. This leads to batch assembly errors by employees, resulting in a huge waste of manpower, material resources, financial resources, and time for rework, and affecting the first-time pass rate of the whole machine inspection. Utility Model Content
[0004] This invention addresses the existing technical problems by providing a Hall magnetic detection device.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A Hall magnetic detection device includes a base and a support and bracket mounted on the base. The support is provided with one or more receiving slots. A Hall sensor is installed at the bottom of each receiving slot. The receiving slot is used to receive a lock and a magnet. The Hall sensor corresponds to the magnet. A prompt is installed on the bracket. The prompt corresponds to the Hall sensor. The prompt and the Hall sensor are electrically connected to a power supply. The Hall sensor is communicatively connected to the prompt.
[0006] Based on the above technical solution, the present invention can be further improved as follows:
[0007] Preferably, the Hall sensor is located below the magnet.
[0008] Preferably, the indicator includes an alarm indicator and a pass indicator light, the alarm indicator and the pass indicator light being electrically connected to a power supply, and each Hall sensor corresponds to one alarm indicator and one pass indicator light.
[0009] Preferably, the locking sleeve at least partially protrudes from the receiving groove.
[0010] The beneficial effects of this invention are as follows: By detecting the N pole of the magnet using a Hall sensor, the polarity of the magnet can be quickly detected, effectively improving the accuracy and efficiency of the detection and solving the problem of batch rework caused by incorrect identification of the N pole of the magnet. This detection device is small in size, improving space utilization, and can simultaneously detect multiple magnets, thus improving detection and assembly efficiency. The inclusion of a prompt device allows operators to intuitively understand the detection results, further enhancing detection efficiency. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the detection device of this utility model;
[0012] Figure 2 This is a cross-sectional schematic diagram of the Hall sensor in the detection device of this utility model;
[0013] Figure 3 This is a schematic diagram of the circuit connection of the detection device.
[0014] The attached diagram is labeled as follows: 1. Base; 2. Support base; 3. Bracket; 4. Alarm indicator; 5. Qualified indicator light; 6. Receiving slot; 7. Locking sleeve; 8. Magnet; 9. Hall sensor. Detailed Implementation
[0015] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0016] like Figures 1 to 3 As shown, this utility model discloses a Hall magnetic detection device, including a base 1 and a support 2 and a bracket 3 mounted on the base 1. The base 1 and support 2 are made of non-magnetic materials such as nylon, which further improves the accuracy of the detection results. The bracket 3 is made of metal, which is convenient for processing and ensures structural strength. The support 2 is provided with one or more receiving slots 6. A Hall sensor 9 is installed at the bottom of each receiving slot 6. The receiving slot 6 is used to accommodate a locking sleeve 7 and a magnet 8. The Hall sensor 9 corresponds to the magnet 8. Specifically, the Hall sensor 9 is located below the magnet 8 to ensure the accuracy of the detection results. A prompt is installed on the bracket 3. The prompt corresponds one-to-one with the Hall sensor 9. The prompt and the Hall sensor 9 are electrically connected to a power supply. The Hall sensor 9 is communicatively connected to the prompt. When the Hall sensor 9 detects the N pole of the magnet 8, the prompt provides an indication, ensuring the accuracy of the detection results and improving detection efficiency.
[0017] In this embodiment, specifically, the indicator includes an alarm indicator 4 and a pass indicator light 5. The alarm indicator 4 and the pass indicator light 5 are electrically connected to a power supply. Each Hall sensor 9 corresponds to one alarm indicator 4 and one pass indicator light 5. The alarm indicator 4 and the pass indicator light 5 provide the operator with the test results through auditory and visual means, respectively, thus preventing errors and ensuring the accuracy and intuitiveness of the test results.
[0018] The locking sleeve 7 protrudes at least partially from the receiving groove 6. Specifically, the depth of the receiving groove 6 is less than the diameter of the locking sleeve 7, which facilitates the placement and removal of the locking sleeve 7, improves operational convenience, and increases testing efficiency.
[0019] In this embodiment, there are ten receiving slots 6 arranged in a row. Each receiving slot 6 corresponds to an alarm indicator 4 and a qualified indicator light 5, which display the test results of each magnet 8, thereby improving the convenience and efficiency of the test.
[0020] The usage process of this Hall magnetic detection device is as follows:
[0021] Connect the testing device to a power source to ensure that all components are powered on. Install the magnet 8 onto the locking sleeve 7, then place the locking sleeve 7 into the receiving groove 6, positioning the magnet 8 above the Hall sensor 9. When the Hall sensor 9 senses the N pole of the magnet 8, the qualification indicator light 5 illuminates green, visually informing the operator that the assembly is successful.
[0022] When the Hall sensor 9 detects the S pole of the magnet 8, the pass indicator 5 lights up red and the alarm 4 sounds, visually and audibly informing the operator that the assembly is defective, allowing for timely handling and preventing defective parts from being installed on the whole machine, thus ensuring a high first-pass yield rate for the entire machine. Furthermore, this testing device is compact, accommodating ten sets of magnets 8 for simultaneous testing, significantly improving space utilization and assembly efficiency. The device also has a low power input voltage, making it easier to obtain or replace, thus saving testing costs.
[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A Hall magnetic detection device, characterized in that, The device includes a base (1) and a support (2) and a bracket (3) mounted on the base (1). The support (2) has one or more receiving slots (6). A Hall sensor (9) is installed at the bottom of the receiving slot (6). The receiving slot (6) is used to receive a lock sleeve (7) and a magnet (8). The Hall sensor (9) corresponds to the magnet (8). A prompter is installed on the bracket (3). The prompter corresponds one-to-one with the Hall sensor (9). The prompter and the Hall sensor (9) are electrically connected to a power source. The Hall sensor (9) is communicatively connected to the prompter.
2. The Hall magnetic detection device according to claim 1, characterized in that, The Hall sensor (9) is located below the magnet (8).
3. The Hall magnetic detection device according to claim 2, characterized in that, The indicator includes an alarm indicator (4) and a pass indicator (5). The alarm indicator (4) and the pass indicator (5) are electrically connected to the power supply. Each Hall sensor (9) corresponds to one alarm indicator (4) and one pass indicator (5).
4. The Hall magnetic detection device according to claim 1, characterized in that, The locking sleeve (7) protrudes at least partially from the receiving groove (6).