Device convenient for carrying out aging test on magnetic resistance liquid level belt

Abstract

The utility model discloses a device convenient for carrying out aging test on a magnetic resistance liquid level belt, which comprises a lead screw transmission device, two ends of the lead screw transmission device are respectively provided with a mounting plate, a mounting pipe is arranged between the two mounting plates, and the mounting pipe is parallel to the axis of a lead screw of the lead screw transmission device. The periphery of the installation pipe is movably sleeved with a floater, and the floater is fixedly connected with a movable base of the lead screw transmission device. The installation pipe is arranged, the floater is connected to the installation pipe in a sleeved mode, the magnetic resistance liquid level belt to be tested is installed in the installation pipe, the floater can be driven by the moving seat to move linearly back and forth along the installation pipe under the action of the stepping motor, and therefore the process that the liquid level in a container rises and falls repeatedly is simulated. The magnetic resistance liquid level strip with different liquid level heights can output different liquid level data, and the stability and reliability of the magnetic resistance liquid level strip can be known by analyzing the data. The device is simple in structure, convenient to use and capable of achieving automation of the testing process.

Description

Technical Field

[0001] This utility model relates to an aging test device, and more particularly to a device that facilitates aging tests on magnetoresistive liquid level bands. Background Technology

[0002] The magnetoresistive level strip / band is a crucial component of a magnetoresistive level gauge. Patents CN201610657209.4 and CN202111606920.4 disclose similar magnetoresistive level gauges. During operation, the magnetoresistive level strip / band is installed inside the electron tube and, in conjunction with a float fitted around the outer periphery of the electron tube, measures the liquid level. During the production of the magnetoresistive level strip, aging tests are required. Currently, these tests primarily focus on individual magnetoresistive sensors (magnetoresistive elements) and do not test the stability and reliability of the entire level strip. However, the stability and reliability of the magnetoresistive level strip are critical for the magnetoresistive level gauge; therefore, aging tests on the entire magnetoresistive level strip are essential.

[0003] Currently, there is no industry standard for aging tests on magnetic reluctance level gauges, and therefore no corresponding testing equipment is readily available for purchase or reference. While it's possible to install the level gauge in a container and adjust the liquid level to repeatedly raise and lower a float, thus testing the stability and reliability of the magnetic reluctance level gauge, achieving repeated level increases and decreases at varying rates requires a relatively complex device. Therefore, designing a device that can simulate repeated level increases and decreases to test the stability and reliability of magnetic reluctance level gauges has become a pressing technical problem. Utility Model Content

[0004] The purpose of this invention is to provide a device for facilitating aging tests on magnetoresistive liquid level strips. This device can simulate repeated rises and falls in liquid level, facilitating automatic testing of the stability and reliability of the magnetoresistive liquid level strip.

[0005] The technical solution of this utility model is as follows: a device for facilitating aging tests on magnetic resistance liquid level bands, comprising a lead screw drive device, with a mounting plate installed at each end of the lead screw drive device, and a mounting tube installed between the two mounting plates. The mounting tube is parallel to the lead screw axis of the lead screw drive device, and a float is movably sleeved on the outer periphery of the mounting tube. The float is fixedly connected to the movable seat of the lead screw drive device.

[0006] In the aforementioned device for facilitating aging tests on magnetic resistance liquid level bands, the mounting plate is provided with a mounting tube insertion hole, and a mounting tube limiting and fixing device is sleeved on the mounting tube on the outer side of the mounting plate. The mounting tube limiting and fixing device includes upper and lower arc-shaped clamping pieces, and the upper and lower arc-shaped clamping pieces on both sides of the mounting tube are connected by bolts.

[0007] In the aforementioned device for facilitating aging tests on magnetic resistance liquid level bands, a clamping ring is sleeved around the outer periphery of the float, and the upper and lower plates of the clamping ring are connected by bolts, with the upper plate of the clamping ring fixed to the movable seat.

[0008] The beneficial effects of this invention are as follows: Compared with the prior art, this invention features an installation tube with a float fitted onto it. The installation tube houses the magnetoresistive liquid level strip to be tested. Driven by a stepper motor, the float moves back and forth linearly along the installation tube via a moving base, simulating the repeated rise and fall of the liquid level in a container. Different liquid levels will output different liquid level data. By analyzing the data, the stability and reliability of the magnetoresistive liquid level strip can be determined. This device has a simple structure, is easy to use, and can automate the testing process. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 A schematic diagram of the connection structure between the mounting pipe and the mounting pipe limiting and fixing device;

[0011] Figure 3 This is a schematic diagram of the connection structure between the mounting tube and the clamping ring.

[0012] Reference numerals: 1-Screw drive device, 2-Mounting plate, 3-Mounting tube, 4-Float, 5-Moving seat, 6-Arc-shaped clamping plate, 7-Bolt, 8-Clamping ring. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0014] An embodiment of this utility model: A device for facilitating aging tests on magnetic resistance liquid level bands, comprising a lead screw drive device 1. The lead screw drive device 1 is a mature existing product, and its specific structure will not be described in detail here. Each end of the lead screw drive device 1 is equipped with a mounting plate 2, and a mounting tube 3 is installed between the two mounting plates 2. The mounting tube 3 is parallel to the lead screw axis of the lead screw drive device 1. A float 4 is movably sleeved on the outer periphery of the mounting tube 3, and the float 4 is fixedly connected to the movable seat 5 of the lead screw drive device 1.

[0015] In the process of using this utility model, the installation tube 3 is used to install the magnetic resistance level band to be tested, and the magnetic resistance level band is connected to the data acquisition device. Under the action of the stepper motor of the lead screw drive device 1, the float 4 can be driven by the moving seat 5 to move back and forth in a straight line along the installation tube 3, thereby simulating the process of repeated rise and fall of the liquid level in the container. The magnetic resistance level band will output different liquid level data at different float 4 positions. By collecting and analyzing the data through the data acquisition device, the stability and reliability of the magnetic resistance level band can be known.

[0016] During the test, the speed of the stepper motor can be adjusted to simulate different liquid level rise and fall speeds, thereby testing the stability and reliability of the magnetoresistive liquid level band in different environments.

[0017] The mounting plate 2 is provided with a mounting tube insertion hole for easy insertion of the mounting tube 3. A mounting tube limiting and fixing device is fixedly sleeved on the mounting tube 3 on the outer side of the mounting plate 2. The two mounting tube limiting and fixing devices abut against the adjacent mounting plates 2, thereby locking and fixing the mounting tube 3 and preventing the float 4 from moving along with the mounting tube 3. The mounting tube limiting and fixing device includes upper and lower arc-shaped clamping pieces 6. The upper and lower arc-shaped clamping pieces 6 on both sides of the mounting tube 3 are connected by bolts 7. Loosening the bolts 7 can adjust the position of the upper and lower arc-shaped clamping pieces 6 to ensure that they abut against the mounting plate 2, and tightening the bolts 7 can clamp and fix the mounting tube 3.

[0018] A clamping ring 8 is sleeved around the outer periphery of the float 4. The upper and lower plates of the clamping ring 8 are connected by bolts 7. The upper plate of the clamping ring 8 is fixed to the movable seat 5. The float 4 can be clamped and fixed by the clamping ring 8, so as to achieve a fixed connection between the float 4 and the movable seat 5.

Claims

1. A device for facilitating aging tests on magnetoresistive liquid level bands, characterized in that: It includes a lead screw drive device (1), with a mounting plate (2) installed at each end of the lead screw drive device (1), and a mounting tube (3) installed between the two mounting plates (2). The mounting tube (3) is parallel to the lead screw axis of the lead screw drive device (1), and a float (4) is movably sleeved on the outer periphery of the mounting tube (3). The float (4) is fixedly connected to the movable seat (5) of the lead screw drive device (1).

2. The device for facilitating aging tests on magnetoresistive liquid level bands according to claim 1, characterized in that: The mounting plate (2) is provided with a mounting tube insertion hole. The mounting tube (3) on the outside of the mounting plate (2) is fitted with a mounting tube limiting and fixing device. The mounting tube limiting and fixing device includes two upper and lower arc-shaped clamping pieces (6). The upper and lower arc-shaped clamping pieces (6) on both sides of the mounting tube (3) are connected by bolts (7).

3. The device for facilitating aging tests on magnetoresistive liquid level bands according to claim 1, characterized in that: A clamping ring (8) is sleeved around the outer periphery of the float (4). The upper and lower plates of the clamping ring (8) are connected by bolts (7). The upper plate of the clamping ring (8) is fixed to the movable seat (5).

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