A test fixture for wear plate

Abstract

The utility model relates to a kind of test tool for wear-resistant lining plate, including storage bin, hopper, conveyer belt and support frame, hopper is installed in the lower end of storage bin, storage bin and hopper are used to store iron ore, the lower end of hopper is equipped with ore leakage port, conveyer belt is located below ore leakage port, conveyer belt is connected with driving device, support frame is located in the side of conveyer belt, support frame is used to install measured lining plate, iron ore conveyed by conveyer belt is used to impact measured lining plate.Iron ore in storage bin falls on conveyer belt through ore leakage port, conveyer belt drives iron ore to move, when iron ore moves to the end of conveyer belt, iron ore makes downward horizontal throwing motion, iron ore impacts measured lining plate on support frame, after all iron ore impact is completed, the weight difference before and after measured lining plate test is compared, thereby the wear of measured lining plate is quantitatively evaluated, the service life of measured lining plate is tested.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and specifically to a testing fixture for wear-resistant liners. Background Technology

[0002] In mining operations, equipment such as crushers, ball mills, hoppers, chutes, and conveying pipelines are in direct contact with hard, highly abrasive ores for extended periods, enduring tremendous impact, wear, and compression. Wear-resistant liners, installed on the inner walls or easily worn parts of these devices, act as sacrificial layers, absorbing and resisting the impact and friction of the ore. This effectively protects the equipment from premature wear or damage, significantly extending the service life of core equipment. Therefore, wear-resistant liners are critical protective components of mining equipment and an indispensable part of ensuring continuous, efficient, safe, and economical mining operations. Existing friction and wear testing machines and erosion devices cannot accurately simulate the working conditions of wear-resistant liners used in ore terminals, nor can they correctly assess the wear condition and service life of these liners. Utility Model Content

[0003] This utility model addresses the existing technical problems by providing a testing fixture for wear-resistant liners.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A testing fixture for wear-resistant liners includes a storage bin, a funnel, a conveyor belt, and a support frame. The funnel is installed at the lower end of the storage bin. The storage bin and the funnel are used to store iron ore. The lower end of the funnel is provided with a ore outlet. An openable cover is installed at the ore outlet. The conveyor belt is located below the ore outlet and is connected to a drive device. The support frame is located on one side of the conveyor belt and is used to install the liner to be tested. The iron ore conveyed by the conveyor belt is used to impact the liner to be tested.

[0005] Based on the above technical solution, the present invention can be further improved as follows: Preferably, one end of the conveyor belt is provided with a drive wheel, and the other end of the conveyor belt is provided with a driven wheel, and the drive wheel is connected to the output end of the drive motor.

[0006] Preferably, a plurality of rollers are provided between the driving wheel and the driven wheel, the rollers extending along the length of the conveyor belt, and the plurality of rollers respectively contacting the conveyor belt.

[0007] Preferably, the width of the conveyor belt is 500mm-600mm and the speed is 3m / s-5m / s.

[0008] Preferably, the ore outlet is rectangular.

[0009] Preferably, the support frame includes a vertically arranged support plate and a base, wherein the support plate has a height of 1000mm and a thickness of 30mm.

[0010] Preferably, the thickness of the liner to be tested is 10mm-16mm.

[0011] The beneficial effects of this utility model are as follows: Iron ore in the storage bin falls onto the conveyor belt through the ore outlet. The conveyor belt drives the iron ore to move. When the iron ore moves to the end of the conveyor belt, it makes a downward projectile motion and impacts the test liner on the support frame. After all the iron ore has impacted, the wear of the test liner is quantitatively evaluated by comparing the weight difference before and after the test, thus realizing the test of the service life of the test liner. By simulating the impact and wear conditions of the wear-resistant liner in the actual working environment of the ore terminal, the wear resistance and service life of the wear-resistant liner can be evaluated more accurately. The testing device is reasonably designed, simple in structure, and easy to operate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the testing fixture for wear-resistant liners according to this utility model.

[0013] The attached diagram is labeled as follows: 1. Storage bin; 2. Funnel; 3. Conveyor belt; 4. Roller; 5. Drive wheel; 6. Driven wheel; 7. Support frame; 8. Liner plate to be tested. Detailed Implementation

[0014] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0015] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. The terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0016] like Figure 1As shown, this utility model discloses a testing fixture for wear-resistant liners, including a storage bin 1, a funnel 2, a conveyor belt 3, and a support frame 7. The funnel 2 is installed at the lower end of the storage bin 1. The storage bin 1 and the funnel 2 are used to store iron ore. The storage bin 1 is a 400mm cube, and the funnel 2 is a square funnel with a rectangular ore outlet at its lower end to improve ore extraction efficiency. An openable cover is installed at the ore outlet. The conveyor belt 3 is located below the ore outlet and is connected to a drive device. The support frame 7 is located on one side of the conveyor belt 3 and is used to mount the liner 8 to be tested. The thickness of the liner 8 is 10mm-16mm. The iron ore conveyed by the conveyor belt 3 impacts the liner 8. During the test, the iron ore falls from the ore outlet onto the conveyor belt 3, which moves the iron ore at a certain speed. When the iron ore moves to the end of the conveyor belt 3, it undergoes a downward projectile motion, impacting the test liner 8 mounted on the support frame 7. This impact process simulates the impact and wear experienced by the wear-resistant liner at the ore terminal during actual operation, thus accurately reflecting the wear resistance and service life of the liner.

[0017] In this embodiment, one end of the conveyor belt 3 is equipped with a drive wheel 5, and the other end is equipped with a driven wheel 6. The drive wheel 5 is connected to the output end of the drive motor. The drive motor drives the drive wheel 5 to rotate, and the drive wheel 5 drives the conveyor belt 3 to move through friction. The driven wheel 6 rotates with the movement of the conveyor belt 3, playing a role in supporting and guiding the conveyor belt 3. The width of the conveyor belt 3 is 500mm-600mm, ensuring that a sufficient amount of iron ore falls on the conveyor belt 3. The speed is 3m / s-5m / s, which can ensure the stable transmission of iron ore on the conveyor belt 3, while providing sufficient impact force for effective wear testing of the test liner 8.

[0018] Multiple rollers 4 are provided between the driving wheel 5 and the driven wheel 6. The rollers 4 extend along the length of the conveyor belt 3, and each roller 4 contacts the conveyor belt 3. This increases the support for the conveyor belt 3 and the iron ore, reduces the deformation of the conveyor belt 3, reduces the frictional resistance of the conveyor belt 3 during movement, improves the conveying efficiency, and helps maintain the smooth operation of the conveyor belt 3.

[0019] The support frame 7 includes a vertically mounted support plate and a base. The support plate is 1000mm high and 30mm thick. The support frame 7 is detachably bolted to the test liner 8, ensuring the liner 8 remains stable during testing and will not move or deform due to impact, thus guaranteeing the accuracy of the test results. The 1000mm height of the support plate ensures sufficient impact of iron ore onto the test liner 8, making the testing conditions closer to the real working environment. Simultaneously, the 30mm thickness of the support plate ensures the strength and stability of the support frame 7, enabling it to withstand the impact force of the iron ore and ensuring the safety of the testing process.

[0020] In this embodiment, the speed of the conveyor belt 3 is 3.25 m / s, the test liner 8 is a square with a side length of 300 mm, the height h2 of the center of the test liner 8 above the ground is 500 mm, the height h1 of the conveyor belt 3 is 1000 mm, and the distance L between the test liner 8 and the initial position of the iron ore during horizontal throwing is used to ensure that the iron ore can strike the test liner 8 normally. The calculation process of this distance L is as follows: The iron ore is thrown horizontally from a conveyor belt 3 at a height of 1000mm and impacts a test liner 8 at a height of 500mm. Therefore, the vertical distance it falls is: Δh=h1-h2=1000-500=500mm=0.5m; The iron ore undergoes free fall in the vertical direction, and the time taken is t. According to the formula... = g=10m / s 2 The calculation time t is 0.3162s. The horizontal distance L = V0 × t, V0 = 3.25m / s, so the distance between the test liner 8 and the initial position of the iron ore during horizontal throwing is L = 1.03m.

[0021] The usage process is as follows: Before the test, the liner plate 8 to be tested is weighed and the mass of the liner plate 8 before the test is recorded. Then, the liner plate 8 to be tested is installed on the support frame 7, wherein the distance L between the liner plate 8 to be tested and the conveyor belt 3 is 1.03m. Fill storage bin 1 with iron ore particles, ensuring the particles are flush with the upper feed inlet to guarantee the same volume of iron ore particles for each test. Start conveyor belt 3, open the cover at the ore outlet of storage bin 1, and the iron ore falls onto conveyor belt 3, which moves the iron ore at a certain speed. When the iron ore reaches the end of conveyor belt 3, it undergoes a downward projectile motion, impacting the test liner 8. After all the iron ore has impacted, the drive motor is turned off, the conveyor belt 3 stops moving, and the ore particles remaining on the test liner 8 are cleaned. Then the test liner 8 is weighed again. The erosion and wear performance of the test liner 8 can be evaluated by the mass difference before and after impact: when the mass of iron ore is the same and the impact speed is the same, the greater the mass loss of the test liner 8, the worse the wear resistance of the test liner 8. Conversely, the smaller the mass loss of the test liner 8, the better the wear resistance of the test liner 8. Thus, the service life of the test liner 8 can be quantitatively analyzed.

[0022] 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 test fixture for wear plate, characterized by, The device includes a storage bin (1), a funnel (2), a conveyor belt (3), and a support frame (7). The storage bin (1) is equipped with a funnel (2) at its lower end. The storage bin (1) and the funnel (2) are used to store iron ore. The funnel (2) has a ore outlet at its lower end. An openable cover is installed at the ore outlet. The conveyor belt (3) is located below the ore outlet and is connected to a drive device. The support frame (7) is located on one side of the conveyor belt (3) and is used to install a test liner (8). The iron ore conveyed by the conveyor belt (3) is used to impact the test liner (8).

2. The test fixture for abrasion-resistant liner panels of claim 1, wherein, One end of the conveyor belt (3) is provided with a drive wheel (5), and the other end of the conveyor belt (3) is provided with a driven wheel (6). The drive wheel (5) is connected to the output end of the drive motor.

3. The test fixture for abrasion-resistant liner panels of claim 2, wherein, Multiple rollers (4) are provided between the driving wheel (5) and the driven wheel (6). The rollers (4) extend along the length of the conveyor belt (3), and the multiple rollers (4) respectively contact the conveyor belt (3).

4. The test fixture for abrasion-resistant liner panels of claim 3, wherein, The width of the conveyor belt (3) is 500mm-600mm, and the speed is 3m / s-5m / s.

5. The test fixture for abrasion-resistant liner panels of claim 1, wherein, The ore outlet is rectangular.

6. The test fixture for abrasion-resistant liner panels of claim 2, wherein, The support frame (7) includes a vertically arranged support plate and a base. The support plate has a height of 1000 mm and a thickness of 30 mm.

7. The testing fixture for wear-resistant liners according to claim 1, characterized in that, The thickness of the liner plate (8) to be tested is 10mm-16mm.

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