A wear tester for EVA materials

Abstract

The utility model discloses a kind of wear testing machines for EVA material, including test bench, friction unit, extrusion unit, test unit and power unit are equipped on test bench, power unit includes motor, with motor spindle fixed turntable, cantilever beam is hinged on turntable, cantilever beam is pushed test unit to move when turntable rotates, test unit is equipped with friction piece and extrusion plate opposite to friction unit and extrusion unit, friction piece and extrusion plate are used to cooperate test on the material sample clamped on friction unit and extrusion unit;The utility model's testing machine structure is simple, scientific design, it is integrated by friction and extrusion testing machine, by a motor driving realizes simultaneously to carry out two groups of test, in addition, test equipment is also set digital position indicator on adjusting screw, improve the precision of adjustment, let device can accurate control when testing debugging parameter, test condition unified result data is accurate.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber testing, specifically to an abrasion resistance testing machine for EVA materials. Background Technology

[0002] After EVA materials are produced, their various properties need to be tested, including abrasion resistance. Abrasion resistance testing requires an abrasion testing machine. The test piece is fixed on the abrasion testing machine, and then the machine is started to test the abrasion resistance and other properties of the material under a given pressure. Traditional testing machines have complex structures and only one test item. Abrasion resistance and pressure resistance are the most basic test items. Therefore, most manufacturers will set up corresponding testing machines for testing after designing and producing the product. Utility Model Content

[0003] In view of the prior art, the purpose of this utility model is to provide a testing machine with a simple structure that can accurately adjust the test intensity and perform friction and extrusion tests.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an abrasion resistance testing machine for EVA materials, comprising a test bench, wherein the test bench is provided with a friction unit, an extrusion unit, a testing unit, and a power unit, wherein the power unit includes a motor, a turntable fixed to the motor spindle, and a cantilever rod hinged to the turntable, wherein the cantilever rod pushes the testing unit to move when the turntable rotates, wherein the testing unit is provided with a friction element and an extrusion plate opposite to the friction unit and the extrusion unit, wherein the friction element and the extrusion plate are used to test the material samples clamped on the friction unit and the extrusion unit.

[0005] As a further feature of the above scheme, the power unit is fixed on the test bench, and the connecting piece of the cantilever rod hinged to the turntable is eccentrically set with respect to the main shaft of the motor that drives the turntable to rotate.

[0006] As a further feature of the above scheme, the test unit is also provided with a slide rail and a slide plate. The friction element and the extrusion plate are disposed on the slide plate. The cantilever rod is hinged to the slide plate, and the axis of the hinge column of the cantilever rod on the slide plate is set at the same horizontal height as the axis of the motor's main shaft.

[0007] As a further provision of the above solution, the friction component includes a clamp, a grinding component, and a bracket fixed on the sliding plate component. The bracket is also provided with a rocker arm, which is connected to a screw component. The screw component is threadedly connected to the clamp, and the clamp is slidably disposed relative to the sliding plate component.

[0008] As a further provision of the above scheme, the friction unit and the extrusion unit are fixedly mounted on the test bench. The extrusion unit includes a driving component and a material testing seat. The driving component includes a rocking handle with a threaded driving rod. The threaded driving rod is threadedly connected to the material testing seat. The extrusion unit also includes a limiting seat fixed on the test bench. The bottom of the material testing seat is located between the two limiting seats.

[0009] As a further feature of the above solution, both the threaded drive rod and the screw are equipped with digital position indicators, which are used to accurately provide feedback and display the distance and position between the friction unit and the extrusion unit and the test unit.

[0010] As a further feature of the above solution, the bottom of the test bench is provided with a stabilizing support foot, which is threadedly connected and fixed to the test bench to support the test bench.

[0011] As a further feature of the above solution, the turntable is provided with a number of fixing holes, which are arranged sequentially along the direction gradually away from the motor spindle axis. The cantilever rod includes an adjusting sleeve rod in the middle and hinged sleeve rods at both ends of the adjusting sleeve rod. The adjusting sleeve rod is threaded to connect the hinged sleeve rods at both ends.

[0012] Beneficial effects: The testing machine of this utility model has a simple structure and scientific design. It integrates the friction and extrusion testing machines into one piece and uses a single motor to drive two sets of tests simultaneously. In addition, the testing equipment is equipped with a digital position indicator on the adjusting screw to improve the accuracy of adjustment. This allows the device to accurately control the test parameters, ensuring uniform test conditions and accurate data. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the wear resistance testing machine of this utility model.

[0014] Figure 2 This is a schematic diagram of the power unit structure in this embodiment.

[0015] Figure 3 This is a schematic diagram of the test unit structure in this embodiment.

[0016] Figure 4 This is a schematic diagram of the extrusion unit structure in this embodiment.

[0017] Reference numerals: 1. Test bench; 11. Stabilizing foot; 2. Friction unit; 3. Extrusion unit; 31. Driving component; 32. Material testing seat; 33. Threaded drive rod; 34. Rocking handle; 35. Limiting seat; 4. Testing unit; 41. Friction component; 411. Clamp; 412. Grinding component; 413. Support; 414. Rocker arm; 415. Screw component; 42. Extrusion plate; 43. Slide rail; 44. Slide plate component; 5. Power unit; 51. Motor; 52. Turntable; 53. Connecting component; 54. Fixing hole; 55. Cantilever rod; 56. Adjusting sleeve rod; 57. Hinge sleeve rod; 8. Digital position indicator. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other.

[0019] like Figure 1-4 The present invention discloses an abrasion resistance testing machine for EVA material, comprising a test bench 1, wherein the test bench 1 is provided with a friction unit 2, an extrusion unit 3, a testing unit 4, and a power unit 5. The power unit 5 includes a motor 51, a turntable 52 fixed to the main shaft of the motor 51, and a cantilever rod 55 hinged to the turntable 52. The cantilever rod 55 pushes the testing unit 4 to move when the turntable 52 rotates. The testing unit 4 is provided with a friction element 41 and an extrusion plate 42 opposite to the friction unit 2 and the extrusion unit 3. The friction element 41 and the extrusion plate 42 are used for testing the fit of the material samples clamped on the friction unit 2 and the extrusion unit 3.

[0020] As a further feature of the above scheme, the power unit 5 is fixed on the test bench 1, and the connecting piece 53 of the cantilever rod 55, which is hinged relative to the turntable 52, is eccentrically set with the main shaft of the motor 51 that drives the turntable 52 to rotate.

[0021] As a further provision of the above scheme, the test unit 4 is also provided with a slide rail 43 and a slide plate 44. The friction element 41 and the extrusion plate 42 are disposed on the slide plate 44. The cantilever rod 55 is hinged to the slide plate 44, and the hinge column axis of the cantilever rod 55 on the slide plate 44 is set at the same horizontal height as the main shaft axis of the motor 51.

[0022] As a further provision of the above solution, the friction member 41 includes a clamp 411, a grinding member 412, and a bracket 413 fixed on the sliding plate member 44. The bracket 413 is also provided with a rocker arm 414. The rocker arm 414 is connected to a screw member 415. The screw member 415 is threadedly connected to the clamp 411, and the clamp 411 is slidably disposed relative to the sliding plate member 44.

[0023] As a further provision of the above scheme, the friction unit 2 and the extrusion unit 3 are fixedly mounted on the test bench 1. The extrusion unit 3 includes a driving component 31 and a material testing seat 32. The driving component 31 includes a rocking handle 34 with a threaded driving rod 33. The threaded driving rod 33 is threadedly connected to the material testing seat 32. The extrusion unit 3 also includes a limiting seat 35 fixed on the test bench 1. The bottom of the material testing seat 32 is located between the two limiting seats 35.

[0024] As a further feature of the above scheme, both the threaded drive rod 33 and the screw component 415 are equipped with digital position indicators 8, which are used to accurately provide feedback and display the distance between the friction unit 2 and the extrusion unit 3 and the test unit 4.

[0025] As a further feature of the above scheme, the bottom of the test bench 1 is provided with a stabilizing support leg 11, which is threadedly fixed to the test bench 1 to support the test bench 1.

[0026] As a further feature of the above scheme, the turntable 52 is provided with a plurality of fixing holes 54, which are arranged sequentially along the direction gradually moving away from the main shaft center of the motor 51. The cantilever rod 55 includes an adjusting sleeve rod 56 in the middle and hinged sleeve rods 57 at both ends of the adjusting sleeve rod 56. The adjusting sleeve rod 56 is threaded to connect the hinged sleeve rods 57 at both ends.

[0027] refer to Figure 1-4 This embodiment includes a test bench 1, on which a friction unit 2, an extrusion unit 3, a test unit 4, and a power unit 5 are provided. The power unit 5 includes a motor 51, a turntable 52 fixed to the main shaft of the motor 51, and a cantilever rod 55 hinged to the turntable 52. The cantilever rod 55 pushes the test unit 4 to move when the turntable 52 rotates. The test unit 4 is provided with a friction element 41 and an extrusion plate 42 opposite to the friction unit 2 and the extrusion unit 3. The friction element 41 and the extrusion plate 42 are used to test the fit of the material samples clamped on the friction unit 2 and the extrusion unit 3.

[0028] Through the above structure, combined with the appendix Figure 1The test equipment shown in this embodiment uses a single power unit 5 to drive the test unit 4 to slide. The friction element 41 and the extrusion plate 42 on the test unit move relative to the friction unit 2 and the extrusion unit 3 used to fix the test sample, thereby realizing the friction and extrusion test on the test sample. The friction element 41 and the extrusion unit 3 of the test equipment in this embodiment are also provided with drive structures that can control the movement of the material test seat 32 used to fix the test sample in the friction element 41 and the extrusion unit 3. The drive structure principles of the two are basically the same, both of which are based on the application of a screw and slider mechanism. A digital position indicator 8 unit is also provided on the screw to accurately control the screw rotation between the test component and the sample component, so as to improve the accuracy of the test results.

[0029] As a further feature of the above scheme, the power unit 5 is fixed on the test bench 1, and the connecting piece 53 of the cantilever rod 55 is hinged relative to the turntable 52 and is eccentrically set with the main shaft of the motor 51 that drives the turntable 52 to rotate. The turntable 52 is provided with a plurality of fixing holes 54, which are arranged sequentially along the direction gradually away from the axis of the motor 51 main shaft. The cantilever rod 55 includes an adjusting sleeve rod 56 in the middle and hinged sleeve rods 57 located at both ends of the adjusting sleeve rod 56. The adjusting sleeve rod 56 is threaded to connect the hinged sleeve rods 57 at both ends.

[0030] Through the above structural setup, in conjunction with Figure 1 and Figure 2 The power unit 5 shown in this embodiment can adjust the position of the end of the cantilever rod 55 relative to the rotation center of the turntable 52 by adjusting the position of the connecting member 53 on the turntable 52 as needed, thereby controlling the driving stroke of the slide plate 44 driven by the cantilever rod 55. The cantilever rod 55 achieves length control during adjustment by the threaded engagement between the adjusting sleeve rod 56 located in the middle and the hinged sleeve rods 57 on both sides.

[0031] The abrasion resistance testing machine for EVA material described in this embodiment can test the friction, extrusion, and other properties of finished EVA materials. Figure 1 As shown, after the motor 51 starts, it drives the turntable 52 to rotate. The cantilever rod 55 causes the slide plate 44 to slide along the slide rail 43, so that the friction element 41 set on it rubs back and forth on the test sample on the friction unit 2. This causes the extrusion plate 42 to repeatedly impact and extrude against the test sample set on the extrusion unit 3. The two sets of tests are carried out synchronously by a single motor 51, and the staff records the test data regularly.

[0032] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An abrasion resistance testing machine for EVA material, characterized in that: The test bench (1) includes a friction unit (2), an extrusion unit (3), a test unit (4), and a power unit (5). The power unit (5) includes a motor (51), a turntable (52) fixed to the main shaft of the motor (51), and a cantilever rod (55) hinged to the turntable (52). The cantilever rod (55) pushes the test unit (4) to move when the turntable (52) rotates. The test unit (4) is provided with a friction element (41) and an extrusion plate (42) opposite to the friction unit (2) and the extrusion unit (3). The friction element (41) and the extrusion plate (42) are used to test the fit of the material samples clamped on the friction unit (2) and the extrusion unit (3).

2. The abrasion resistance testing machine for EVA material according to claim 1, characterized in that: The power unit (5) is fixed on the test bench (1), and the connecting piece (53) of the cantilever rod (55) is hinged relative to the turntable (52) and the main shaft of the motor (51) that drives the turntable (52) to rotate is eccentrically set.

3. The abrasion resistance testing machine for EVA material according to claim 1, characterized in that: The test unit (4) is also provided with a slide rail (43) and a slide plate (44). The friction element (41) and the extrusion plate (42) are set on the slide plate (44). The cantilever rod (55) is hinged to the slide plate (44), and the hinge column axis of the cantilever rod (55) on the slide plate (44) is set at the same horizontal height as the main shaft axis of the motor (51).

4. The abrasion resistance testing machine for EVA material according to claim 3, characterized in that: The friction element (41) includes a clamp (411), a grinding element (412), and a bracket (413) fixed on the sliding plate (44). The bracket (413) is also provided with a rocker arm (414). The rocker arm (414) is connected to a screw (415). The screw (415) is threadedly connected to the clamp (411), and the clamp (411) is slidably disposed relative to the sliding plate (44).

5. The abrasion resistance testing machine for EVA material according to claim 4, characterized in that: The friction unit (2) and the extrusion unit (3) are fixedly mounted on the test bench (1). The extrusion unit (3) includes a drive component (31) and a material test seat (32). The drive component (31) includes a rocker handle (34) with a threaded drive rod (33). The threaded drive rod (33) is threadedly connected to the material test seat (32). The extrusion unit (3) also includes a limiting seat (35) fixed on the test bench (1). The bottom of the material test seat (32) is located between the two limiting seats (35).

6. The abrasion resistance testing machine for EVA material according to claim 5, characterized in that: Both the threaded drive rod (33) and the screw (415) are equipped with digital position indicators (8), which are used to accurately provide feedback and display the distance between the friction unit (2) and the extrusion unit (3) and the test unit (4).

7. The abrasion resistance testing machine for EVA material according to claim 1, characterized in that: The test bench (1) is provided with a stable support foot (11) at the bottom.

8. The abrasion resistance testing machine for EVA material according to claim 1, characterized in that: The turntable (52) is provided with a number of fixing holes (54), which are arranged sequentially along the direction gradually away from the main shaft of the motor (51). The cantilever rod (55) includes an adjusting sleeve rod (56) in the middle and hinged sleeve rods (57) at both ends of the adjusting sleeve rod (56). The adjusting sleeve rod (56) is threaded to connect the hinged sleeve rods (57) at both ends.

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