A type of sheet metal wear testing equipment

Abstract

This utility model discloses a plate wear testing device, relating to the technical field of wear detection equipment. It includes a base, a power unit mounted on the base, and a reducer connected to the power unit. A crankshaft flange is connected to the output end of the reducer. A sliding guide device is also provided on the base, comprising a slide rail and a slide block sliding on the slide rail. A connecting rod is provided between the crankshaft flange and the slide block. An eccentric crankshaft is mounted on the crankshaft flange. One end of the connecting rod is hinged to the eccentric crankshaft, and the other end is hinged to a hinge plate via a pin. The hinge plate is fixedly connected to the slide block, and the slide block is equipped with an abrasive assembly for fixing the wear part. A sample fixing seat is also provided on the base, and the wear part is fixedly mounted on the sample fixing seat, always fixed to the lower part of the abrasive assembly. This utility model has a simple structure, low cost, and high precision, enabling stable friction detection.

Description

Technical Field

[0001] This utility model relates to the field of wear detection equipment technology, specifically to a plate wear testing equipment. Background Technology

[0002] With the increasing variety of new materials, their rational utilization in the machinery field not only helps save production costs but also significantly impacts equipment lifespan. To improve equipment safety, some new materials require simulated usage scenarios and actual material testing before mass production to determine their design dimensions. Testing typically includes properties such as wear resistance, compressive or tensile strength, especially important for machinery used in coal mines where high wear resistance is crucial.

[0003] There are many ways to test wear resistance, the most common being to directly purchase a friction testing machine. To increase the versatility of their equipment, manufacturers of friction testing machines will set parameters for various models, such as the shape and size of the plate, friction time, and coefficient of friction. However, the wear resistance testing of mining equipment has a single functional requirement, and general-purpose friction testing machines are difficult to match with some of the samples to be tested, resulting in poor practicality. Utility Model Content

[0004] To overcome the above-mentioned defects, the purpose of this utility model is to provide a plate wear testing equipment with simple structure, low cost and high precision, which can achieve stable friction detection.

[0005] To achieve the above objectives, this utility model provides a plate wear testing device, comprising: a base, a power unit mounted on the base, and a reducer connected to the power unit; a crankshaft flange connected to the output end of the reducer; a sliding guide device mounted on the base, the sliding guide device including a slide rail and a slide block sliding on the slide rail; a connecting rod between the crankshaft flange and the slide block; an eccentric crankshaft mounted on the crankshaft flange; one end of the connecting rod hinged to the eccentric crankshaft, and the other end hinged to a hinge plate via a pin; the hinge plate fixedly connected to the slide block; and an abrasive assembly for fixing the wear part mounted on the slide block; a sample fixing seat mounted on the base, on which the wear part is fixed, and the wear part is always fixed to the lower part of the abrasive assembly.

[0006] Preferably, the power unit is a servo motor, and the reducer is a worm gear reducer.

[0007] Preferably, the worm in the worm gear reducer is connected to the servo motor for transmission, and the worm wheel in the worm gear reducer is fixedly provided with a transmission shaft, which is fixedly connected to the crankshaft flange.

[0008] Preferably, the grinding wheel assembly includes a grinding wheel support sleeve and a counterweight sleeve. The counterweight sleeve is sleeved and slidably connected to the grinding wheel support sleeve. A limiting rod is provided at the top of the counterweight sleeve, and the limiting rod is screwed to the counterweight sleeve by a fixing nut.

[0009] The grinding tool support sleeve has a through hole in the middle for placing the wear part, and the grinding tool support sleeve is fixedly connected to the slide.

[0010] Preferably, the side of the counterweight sleeve is provided with a plurality of counterweight blocks, and each counterweight block is provided with a fastening screw.

[0011] Preferably, the sample holder has a limiting groove in the middle, and is engaged by the wear part and fixed in the limiting groove by the sample pressure plate.

[0012] The beneficial technical effects achieved by this utility model after adopting the above technical solution are as follows:

[0013] 1. A sheet metal wear testing device is designed, in which a motor, after deceleration, drives a crankshaft flange to rotate. An eccentric crankshaft is mounted on the crankshaft flange. One end of a connecting rod is hinged to the eccentric crankshaft, and the other end is hinged to a hinge plate via a pin. The hinge plate is fixedly connected to a slide block, and the slide block is equipped with a grinding wheel assembly for fixing the wear parts. Under the action of the crankshaft flange, the slide block oscillates back and forth along the slide rail to detect the wear resistance of the wear parts and the worn parts. The above equipment can be used by directly purchasing some standard parts and assembling them, thus the cost is low. Due to its simple structure and single function, the motion conversion is accurate and stable, making it particularly suitable for sheet metal parts with single functional requirements.

[0014] 2. Due to the design of the mold support base and counterweight sleeve, the counterweight sleeve is fitted and slidably connected to the mold support base. A limiting rod is provided at the top of the counterweight sleeve, which is screwed to the counterweight sleeve by a fixing nut. The mold support base has a through hole in the middle for placing the wear part, and the mold support base is fixedly connected to the slide. Several counterweight blocks are also provided on the side of the counterweight sleeve. In wear detection, standard parts (such as whetstones) are generally used as wear parts, rubbed against the worn part (such as a steel plate) for a certain period of time, and then the weight of the worn part is weighed. The whetstones are standard parts, purchased directly as needed, and fixed with the mold support base and counterweight sleeve. The number of counterweight blocks can be increased or decreased as needed to increase or decrease the pressure. The operation is extremely simple, highly accurate, and more intuitive, and can also quickly screen out materials that obviously do not meet the requirements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the usage state of this utility model in its main view.

[0016] Figure 2 yes Figure 1 Top-down view reference diagram;

[0017] Figure 3 This is a reference schematic diagram of the combined state of the drive shaft and connecting rod in this utility model;

[0018] Figure 4 yes Figure 3 A top-down view for reference;

[0019] Figure 5 This is a schematic diagram showing the combined state of the grinding wheel assembly device in this utility model;

[0020] Figure 6 This is a reference schematic diagram of the combined state of the sample holder in this utility model;

[0021] Figure 7 yes Figure 6 A diagram illustrating the left-facing view;

[0022] In the diagram,

[0023] 1. Base; 11. Slide rail; 12. Slide block; 13. Hinge plate; 14. Connecting rod; 15. Servo motor;

[0024] 2. Reducer; 21. Drive shaft; 22. Crankshaft flange; 23. Eccentric crankshaft;

[0025] 3. Grinding mold assembly; 31. Grinding mold support sleeve; 32. Counterweight sleeve; 33. Counterweight block; 34. Limiting rod; 35. Wear parts;

[0026] 4. Sample holder; 41. Limiting groove; 42. Sample pressure plate; 43. Worn part. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0028] See Figures 1-7This utility model provides a sheet metal wear testing equipment, including a base 1, a power unit on the base 1, and a reducer 2 connected to the power unit for transmission; the output end of the reducer 2 is connected to a crankshaft flange 22. The base 1 is used to support various components. The power unit is generally a servo motor 15, and the reducer 2 used is a worm gear reducer 2, or other types of gear reducers 2 can be used directly. The purpose is to control the speed of the transmission shaft 21. The worm gear reducer 2 used in this utility model is to change the transmission direction, making the entire equipment more compact and easier to install and debug.

[0029] The base 1 is also provided with a sliding guide device, which includes a slide rail 11 and a slide block 12 that slides on the slide rail 11. A connecting rod 14 is provided between the crankshaft flange 22 and the slide block 12. The slide block 12 moves linearly along the slide rail 11. During the reciprocating motion, friction is achieved between the wear part 35 and the worn part 43.

[0030] An eccentric crankshaft 23 is mounted on the crankshaft flange 22. One end of the connecting rod 14 is hinged to the eccentric crankshaft 23, and the other end is hinged to a hinge plate 13 via a pin. The hinge plate 13 is fixedly connected to the slide block 12, and the slide block 12 is equipped with a grinding wheel assembly 3 for fixing the wear part 35. The crankshaft flange 22 is circular, and the eccentric crankshaft 23 is offset and mounted on one side of the crankshaft flange 22. The connecting rod 14 is hinged to the eccentric crankshaft 23. When the crankshaft flange 22 rotates, it will drive the eccentric crankshaft 23 to rotate together. Due to its offset, the stroke is intermittent. The slide block 12 reciprocates along the slide rail 11 by being dragged by the hinge plate 13, thereby achieving the test of the degree of wear. The above process can be referred to the working loading of the engine crankshaft.

[0031] The base 1 is also equipped with a sample holder 4, on which the wear part 43 is fixed, and the wear part 43 is always fixed at the lower part of the grinding wheel assembly 3. The wear part 43 is generally the workpiece to be tested, such as cemented carbide steel, various types of wear-resistant plates, etc. In order to ensure safety, during the test, the wear part 35 will generally use a standard part with high friction, such as an oilstone strip, as much as possible.

[0032] In this utility model, the worm gear in the worm gear reducer 2 is connected to the servo motor 15 for transmission. The worm gear in the worm gear reducer 2 is fixedly equipped with a transmission shaft 21, which is fixedly connected to the crankshaft flange 22. The transmission shaft 21 is generally connected to the worm gear by a key, which is used to adjust the height of the transmission shaft 21, provide clearance space, and ensure the safety of rotation.

[0033] The grinding wheel assembly device 3 of this utility model includes a grinding wheel support sleeve 31 and a counterweight sleeve 32. The counterweight sleeve 32 is sleeved and slidably connected to the grinding wheel support sleeve 31. A limiting rod 34 is provided at the top of the counterweight sleeve 32. The limiting rod 34 is screwed to the counterweight sleeve 32 by a fixing nut.

[0034] The grinding wheel support sleeve 31 has a through hole in the middle for placing the wear part 35, and the grinding wheel support sleeve 31 is fixedly connected to the slide 12. Taking an oilstone as an example, the oilstone is a standard part that can be purchased and used directly as needed. The oilstone is placed into the through hole, and the top is limited by a limiting rod 34 to control the extension length of the oilstone. The through hole is generally square to fit the oilstone, and the through hole has a certain height for limiting and guiding. The counterweight sleeve 32 is fitted onto the grinding wheel support sleeve 31. The counterweight sleeve 32 is used to place multiple annular counterweights 33. After placement, it is fixed with screws.

[0035] The counterweight sleeve 32 of this utility model is also provided with several counterweight blocks 33 on its side, and each counterweight block 33 is provided with a fastening screw. The figure shows the use of four counterweight blocks 33. In actual operation, the number of counterweight blocks can be increased or decreased as needed.

[0036] The sample holder 4 of this invention has a limiting groove 41 in the middle, and the worn part 43 is snapped in and fixed in the limiting groove 41 by the sample pressure plate 42. The sample holder 4 is used to place the worn part 43. The two ends of the worn part 43 are snapped in and limited by the limiting groove 41, and the upper part and both sides are fixed and limited by the sample pressure plate 42, so as to ensure that it will not shake during the entire wear test.

[0037] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A sheet metal abrasion testing apparatus, comprising: a base, a power unit mounted on the base, the power unit being driven by a reducer; and a crankshaft flange connected to the output end of the reducer, characterized in that... The base is also provided with a sliding guide device, which includes a slide rail and a slide block that slides on the slide rail. A connecting rod is provided between the crankshaft flange and the slide block. An eccentric crankshaft is provided on the crankshaft flange. One end of the connecting rod is hinged to the eccentric crankshaft, and the other end is hinged to a hinge plate via a pin. The hinge plate is fixedly connected to the slide block, and the slide block is provided with a grinding tool assembly for fixing the wear parts. The base is also provided with a sample fixing seat, on which the wear part is fixed, and the wear part is always fixed at the lower part of the grinding tool assembly.

2. The panel rub test apparatus of claim 1, wherein, The power unit is a servo motor, and the reducer is a worm gear reducer.

3. The panel rub test apparatus of claim 2, wherein, The worm in the worm gear reducer is connected to the servo motor for transmission, and the worm wheel in the worm gear reducer is fixedly connected to a transmission shaft, which is fixedly connected to the crankshaft flange.

4. The sheet metal abrasion testing equipment according to claim 1, characterized in that, The grinding wheel assembly includes a grinding wheel support sleeve and a counterweight sleeve. The counterweight sleeve is sleeved and slidably connected to the grinding wheel support sleeve. A limiting rod is provided at the top of the counterweight sleeve, and the limiting rod is screwed to the counterweight sleeve by a fixing nut. The grinding tool support sleeve has a through hole in the middle for placing the wear part, and the grinding tool support sleeve is fixedly connected to the slide.

5. The sheet metal wear testing equipment according to claim 4, characterized in that, The side of the counterweight sleeve is also provided with several counterweight blocks, and each counterweight block is provided with a fastening screw.

6. The sheet metal wear testing equipment according to claim 4, characterized in that, The sample holder has a limiting groove in the middle, and is engaged by the wear part and fixed in the limiting groove by the sample pressure plate.

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