Measuring device and abrasion testing apparatus having the same

Abstract

The utility model provides a kind of measuring device and the abrasion test equipment with it. Among them, measuring device is set on abrasion testing machine, and measuring device includes: measuring structure, including main part and first measuring part, first measuring part is set on main part and has the measuring surface for measuring pressure value, main part has arc-shaped surface that is attached;Adjusting structure has adjusting end, adjusting end is connected with main part;Wherein, adjusting end has fixed state and adjusting state, adjusting end in adjusting state is movably arranged relative to abrasion testing machine, adjusting end moves main part to be adjusted to arc-shaped surface that is attached with the outer peripheral surface of test roller, and measuring surface is adjusted to preset inclination angle;Adjusting end in fixed state is fixedly arranged relative to abrasion testing machine.The utility model effectively solves the problem that the test piece pressure measurement result of abrasion testing machine in prior art is not accurate and measurement efficiency is lower.

Description

Technical Field

[0001] This utility model relates to the field of tire testing technology, and more specifically, to a measuring device and a wear testing equipment having the same. Background Technology

[0002] Currently, before formal production, tire rubber compounds typically need to be made into test specimens and subjected to various tests to verify their performance and ensure that the subsequently manufactured tires have sufficiently high quality. Among the many tests, the most important is the abrasion test. The abrasion test verifies the abrasion resistance of the rubber compound, ensuring that the subsequently manufactured tires have a sufficiently long service life. Among the various testing equipment used for abrasion testing, the most commonly used is the DIN abrasion tester. It is usually equipped with rollers and corresponding specimen clamps. After clamping the specimen, the specimen clamps push and press it against the outer circumference of the rollers with a set pressure. The abrasion resistance of the specimen is tested through the continuous rotation of the rollers. Therefore, the accuracy of the pressure applied to the outer circumference of the rollers directly affects the accuracy of the test results.

[0003] In existing technologies, to ensure the accuracy of the pressure applied to the outer circumference of the roller by the specimen, operators typically measure and verify the pressure periodically (especially for DIN abrasion testing machines that have been in use for a long time). Specifically, the operator holds the pressure sensor against the outer circumference of the roller and adjusts its orientation visually (ensuring that the measuring surface of the pressure sensor is approximately tangent to the outer circumference of the roller and forms a certain angle with the ejection direction of the specimen ejection rod, typically around 3°, to simulate the fixed angle of tire contact). Then, the DIN abrasion testing machine is started, and the specimen ejection rod of the DIN abrasion testing machine ejects and presses against the pressure sensor. The pressure sensor's measurement value indirectly reflects the pressure applied to the outer circumference of the roller by the specimen. The operator can then use these measurements to determine whether the DIN abrasion testing machine needs maintenance or calibration.

[0004] However, the measured values ​​obtained using the above measurement methods actually have significant errors, mainly due to the following reasons:

[0005] First, the manual adjustment method of the pressure sensor attitude is inherently inaccurate. In actual adjustment, it is difficult for the measuring surface of the pressure sensor to be tangent to the outer circumferential surface of the roller and to be set at a fixed angle with the ejection direction of the specimen ejection rod, which has a significant impact on the measurement results.

[0006] Second, the roller can actually rotate freely. When the staff attaches the pressure sensor to the roller, the pressure sensor is easily moved due to the rotation of the roller, making the measurement process extremely troublesome (requiring multiple people to cooperate in controlling the roller to fix it), and the measurement results are also inaccurate. Utility Model Content

[0007] The main objective of this invention is to provide a measuring device and a wear testing equipment having the same, so as to solve the problems of inaccurate specimen pressure measurement results and low measurement efficiency of existing wear testing machines.

[0008] To achieve the above objectives, according to one aspect of the present invention, a measuring device is provided, which is mounted on an abrasion testing machine. The abrasion testing machine includes a test roller, and the measuring device includes: a measuring structure, comprising a main body and a first measuring part, the first measuring part being mounted on the main body and having a measuring surface for measuring pressure values, the main body having an arc-shaped contact surface; and an adjusting structure, having an adjusting end connected to the main body. The adjusting end has a fixed state and an adjusting state. In the adjusting state, the adjusting end is movably mounted relative to the abrasion testing machine. The adjusting end moves the main body to adjust the arc-shaped contact surface to contact the outer circumferential surface of the test roller and to adjust the measuring surface to a preset tilt angle. In the fixed state, the adjusting end is fixedly mounted relative to the abrasion testing machine.

[0009] Furthermore, the adjustment structure includes at least three sequentially rotatably connected connectors, one end of which forms an adjustment end, and the other end of which is fixed to the abrasion testing machine; wherein, the rotation axis between two adjacent connectors is arranged parallel to the central axis of the test roller, and the multiple rotation axes are not coincident.

[0010] Furthermore, the adjustment structure also includes a rotating assembly, which includes: a first rotating member disposed on one of the two adjacent connecting members, the first rotating member having a mating recess; and a second rotating member disposed on the other of the two adjacent connecting members, the second rotating member having a mating protrusion extending into the mating recess and rotatably mating with the mating recess, the two adjacent connecting members being rotatably connected by the rotating assembly.

[0011] Furthermore, the mating recess is a mating hole, and the end of the mating protrusion extends through the mating hole. The rotating assembly also includes a locking member, which is sleeved on the end of the mating protrusion and is movably disposed along the extending direction of the mating protrusion. The locking member has a locking surface, at least a portion of which is disposed opposite to the first rotating member. When the locking member moves to the point where the locking surface abuts against the first rotating member, the locking member prevents the first rotating member from rotating by the friction between the locking surface and the first rotating member. When the locking member moves to the point where the locking surface separates from the first rotating member, the first rotating member is rotatable relative to the second rotating member.

[0012] Furthermore, the connector fixed on the abrasion testing machine is a first connector, which includes: a columnar body; and a plate-shaped connecting part disposed at one end of the columnar body. The plate-shaped connecting part includes a first sub-plate segment, a second sub-plate segment, and a third sub-plate segment connected to each other. The first sub-plate segment and the third sub-plate segment are arranged opposite to each other, and the second sub-plate segment is located between the first sub-plate segment and the third sub-plate segment to connect the first sub-plate segment and the third sub-plate segment. The first sub-plate segment, the second sub-plate segment, and the third sub-plate segment surround each other to form a receiving space, which is used to receive the part of the abrasion testing machine to be fixed. The first sub-plate segment and / or the third sub-plate segment are provided with through holes communicating with the receiving space. Fasteners extend into the receiving space through the through holes and abut against the part to be fixed to fix the plate-shaped connecting part to the part to be fixed.

[0013] Furthermore, the plurality of connectors also includes a second connector, which is rod-shaped and includes a first sub-rod segment and a second sub-rod segment connected to each other. The end of the first sub-rod segment away from the second sub-rod segment forms an adjustment end, and the end of the second sub-rod segment away from the first sub-rod segment is provided with a rotating component; wherein the first sub-rod segment and the second sub-rod segment are arranged at an included angle.

[0014] Furthermore, the multiple connectors also include a third connector, which is rod-shaped and its length is adjustable.

[0015] Furthermore, the measuring structure also includes a second measuring part disposed on the main body, the second measuring part being used to measure the tilt angle of the main body relative to the horizontal plane.

[0016] Furthermore, the main body is an arc-shaped plate, with the plate surface of the main body close to the test roller forming an arc-shaped contact surface, and the plate surface of the main body away from the test roller forming a mounting surface; wherein, the first measuring part is a pressure sensor, the second measuring part is a level, and both the pressure sensor and the level are mounted on the mounting surface.

[0017] According to another aspect of the present invention, an abrasion testing device is provided, which includes an abrasion testing machine and a measuring device disposed on the abrasion testing machine, wherein the measuring device is the aforementioned measuring device.

[0018] The measuring device of this invention, mounted on an abrasion testing machine, includes a measuring structure and an adjusting structure. The first measuring part of the measuring structure is located on its main body and has a measuring surface for measuring pressure values. The main body has an arc-shaped contact surface. The adjusting end of the adjusting structure is connected to the main body. The adjusting end has a fixed state and an adjusting state. In the adjusting state, the adjusting end is movably mounted relative to the abrasion testing machine. By driving the main body to move, the adjusting end adjusts the arc-shaped contact surface to contact the outer circumferential surface of the test roller and adjusts the measuring surface to a preset tilt angle. In the fixed state, the adjusting end is fixedly mounted relative to the abrasion testing machine. In this way, when the operator needs to measure the ejection pressure of the specimen in the abrasion testing machine, they only need to first switch the adjustment end to the adjustment state and move the main body until the arc-shaped contact surface is in contact with the outer circumferential surface of the test roller. Then, the main body moves the first measuring part to slide along the outer circumferential surface of the test roller until the measuring surface is tilted at a preset angle, thus obtaining a precise measurement posture. During the above operation, through the mutual contact relationship between the arc-shaped contact surface and the outer circumferential surface of the test roller, the first measuring part not only has a stable sliding adjustment movement process, but also has a stable relative position relationship with the outer circumferential surface of the test roller, which greatly reduces the difficulty of operation for the operator and improves the measurement efficiency. At this time, the operator can switch the adjustment end back to the fixed state, that is, the first measuring part can be fixed synchronously with the main body, thereby avoiding the interference of the freely rotating test roller on the measurement process of the first measuring part, further reducing the difficulty of operation for the operator. Moreover, the above settings comprehensively ensure that the first measuring part can perform pressure measurement in a precise preset posture, thereby ensuring that the measurement results have extremely high accuracy, thus solving the problem of inaccurate specimen pressure measurement results and low measurement efficiency in the existing abrasion testing machine. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the measuring device according to the present invention assembled on an abrasion testing machine is shown;

[0021] Figure 2 It shows Figure 1 A magnified schematic diagram of point A of the measuring device.

[0022] The above figures include the following reference numerals:

[0023] 1. Abrasion testing machine; 101. Test roller; 102. Part to be fixed; 103. Specimen clamping part;

[0024] 10. Measuring structure; 11. Main body; 111. Arc-shaped fitting surface; 12. First measuring part; 121. Measuring surface; 13. Second measuring part;

[0025] 20. Adjustment structure; 21. Adjustment end; 22. Connector; 221. First connector; 2211. Columnar body; 2212. Plate-shaped connecting part; 2212a. First sub-plate segment; 2212b. Second sub-plate segment; 2212c. Third sub-plate segment; 2212d. Through hole; 222. Second connector; 2221. First sub-rod segment; 2222. Second sub-rod segment; 223. Third connector; 23. Rotating assembly; 231. First rotating component; 232. Second rotating component; 233. Locking component; 24. Fastener. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, directional terms such as "upper" and "lower" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" are generally used in relation to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] In order to solve the problems of inaccurate specimen pressure measurement results and low measurement efficiency in the existing wear testing machine, this application provides a measuring device and wear testing equipment having the same.

[0030] like Figure 1 and Figure 2As shown, the measuring device is mounted on the abrasion testing machine 1. The abrasion testing machine 1 includes a test roller 101. The measuring device includes a measuring structure 10 and an adjusting structure 20. The measuring structure 10 includes a main body 11 and a first measuring part 12. The first measuring part 12 is mounted on the main body 11 and has a measuring surface 121 for measuring pressure values. The main body 11 has an arc-shaped contact surface. The adjusting structure 20 has an adjusting end 21, which is connected to the main body 11. The adjusting end 21 has a fixed state and an adjusting state. In the adjusting state, the adjusting end 21 is movably mounted relative to the abrasion testing machine 1. The adjusting end 21 moves the main body 11 to adjust the arc-shaped contact surface to contact the outer circumferential surface of the test roller 101 and to adjust the measuring surface 121 to a preset tilt angle. In the fixed state, the adjusting end 21 is fixedly mounted relative to the abrasion testing machine 1.

[0031] The measuring device used in this embodiment, mounted on the abrasion testing machine 1, includes a measuring structure 10 and an adjusting structure 20. The first measuring part 12 of the measuring structure 10 is mounted on its main body 11 and has a measuring surface 121 for measuring pressure values. The main body 11 has an arc-shaped contact surface 111. The adjusting end 21 of the adjusting structure 20 is connected to the main body 11. The adjusting end 21 has a fixed state and an adjusting state. In the adjusting state, the adjusting end 21 is movably mounted relative to the abrasion testing machine 1. By moving the main body 11, the adjusting end 21 adjusts the arc-shaped contact surface 111 to contact the outer peripheral surface of the test roller 101 and adjusts the measuring surface 121 to a preset tilt angle. In the fixed state, the adjusting end 21 is fixedly mounted relative to the abrasion testing machine 1. Thus, when the operator needs to measure the ejection pressure of the specimen in the abrasion testing machine 1, they only need to first operate the adjustment end 21 to switch to the adjustment state and operate the main body 11 to move until the arc-shaped contact surface 111 is in contact with the outer peripheral surface of the test roller 101. Then, the main body 11 is operated to drive the first measuring part 12 to slide along the outer peripheral surface of the test roller 101 until the measuring surface 121 is tilted at a preset angle, thus obtaining a precise measurement posture. During the above operation, the mutual contact between the arc-shaped contact surface 111 and the outer peripheral surface of the test roller 101 ensures that the first measuring part 12 has a stable sliding adjustment movement process and that the first measuring part 12 and the outer peripheral surface of the test roller 101 have a stable relative positional relationship. This greatly reduces the operational difficulty for staff and improves measurement efficiency. Once the first measuring unit 12 is adjusted, the staff can operate the adjustment end 21 to switch back to the fixed state, meaning the first measuring unit 12 can be fixed synchronously with the main body 11 to avoid interference from the freely rotating test roller 101 on the measurement process of the first measuring unit 12 (the main body 11 drives the first measuring unit 12 to rotate with the test roller 101). This further reduces the operational difficulty for staff. Moreover, the above-mentioned settings comprehensively ensure that the first measuring unit 12 can perform pressure measurement in a precise preset posture, thereby ensuring that the measurement results have extremely high accuracy. This solves the problem of inaccurate specimen pressure measurement results and low measurement efficiency in the prior art wear testing machine.

[0032] like Figure 1 and Figure 2 As shown, the measuring structure 10 also includes a second measuring part 13, which is disposed on the main body 11. The second measuring part 13 is used to measure the tilt angle of the main body 11 relative to the horizontal plane. In this way, the second measuring part 13 can provide a reference for the operator to slide and rotate the main body 11 along the outer peripheral surface of the test roller 101, so that the operator can adjust the main body 11 to the corresponding position more quickly (the measuring surface 121 of the pressure sensor is tilted at a preset angle).

[0033] like Figure 1 and Figure 2 As shown, the main body 11 is an arc-shaped plate. The plate surface of the main body 11 near the test roller 101 forms an arc-shaped contact surface, while the plate surface away from the test roller 101 forms a mounting surface. The first measuring part 12 is a pressure sensor, and the second measuring part 13 is a level. Both the pressure sensor and the level are mounted on the mounting surface. This design reduces the weight of the main body 11, achieving a lightweight design that facilitates adjustments by operators. Furthermore, it simplifies the structure of the first measuring part 12 and the second measuring part 13, making them easier to manufacture and implement, thereby reducing the manufacturing cost of the measuring device.

[0034] It should be noted that the structure of the main body 11 is not limited to this. The arc-shaped contact surface 111 used to contact the outer peripheral surface of the test roller 101 can form a reference surface. That is, any part of the outer surface of the main body 11 can have a fixed relative positional relationship with the outer peripheral surface of the test roller 101. Therefore, the structure of the main body 11 can be adjusted accordingly, as long as it has the arc-shaped contact surface 111.

[0035] like Figure 1 As shown, the abrasion testing machine 1 also includes a specimen clamping part 103. The specimen clamping part 103 pushes the specimen downward in a vertical direction. Therefore, after the pressure sensor in this embodiment is adjusted to the position with the main body 11, its measuring surface 121 should form an angle of 3° between the horizontal plane and the direction perpendicular to the central axis of the test roller 101, so that the measuring surface 121 can simulate the actual contact state of the actual specimen.

[0036] It should be noted that the above-mentioned included angle setting can be set at the initial stage of installation of the pressure sensor so that after the main body 11 is adjusted to a horizontal position, the measuring surface 121 of the pressure sensor can form a corresponding tilt angle.

[0037] In this embodiment, the pressure sensing element can be fixed to the main body 11 by means of pasting, snap-fitting, fastener connection, etc.

[0038] In this embodiment, the level is used to measure the levelness of the main body 11 in the direction perpendicular to the central axis of the test roller 101, that is, when the main body 11 is attached to the test roller 101, its levelness along the extension direction of the test roller 101 is fixed.

[0039] like Figure 1As shown, the adjustment structure 20 includes at least three sequentially rotatably connected connecting members 22. One end of each connecting member 22 forms an adjustment end 21, and the other end of each connecting member 22 is fixed to the abrasion testing machine 1. The rotation axes between adjacent connecting members 22 are parallel to the central axis of the test roller 101, and the multiple rotation axes do not coincide. This arrangement, through the relative rotational movement between the connecting members 22, not only adjusts the position of the main body 11 but also provides the adjustment structure 20 with multi-level adjustment functions. Specifically, when rotating along the rotation axis closer to the abrasion testing machine 1, the rotation radius of the main body 11 is larger, and the movement distance is also greater (coarse adjustment). Conversely, when rotating along the rotation axis farther from the abrasion testing machine 1, the rotation radius of the main body 11 is smaller, resulting in more precise posture adjustment and improved adjustment efficiency for operators. Meanwhile, the rotation axis, which is parallel to the central axis of the test roller 101, ensures that the main body 11 remains parallel to the test roller 101 during the rotation adjustment process, so as to ensure that the arc-shaped bonding surface 111 can quickly bond with the outer peripheral surface of the test roller 101, further improving the adjustment efficiency of the staff.

[0040] Specifically, the multi-level adjustment function also ensures that the main body 11 has a larger adjustment range to adapt to test rollers 101 and abrasion testers 1 of different specifications and sizes, thereby improving the versatility of the measuring device.

[0041] Optionally, the adjustment structure 20 further includes a rotating assembly 23, which includes a first rotating member 231 and a second rotating member 232. The first rotating member 231 is disposed on one of two adjacent connecting members 22 and has a mating recess. The second rotating member 232 is disposed on the other of the two adjacent connecting members 22 and has a mating protrusion that extends into and rotatably engages with the mating recess. The two adjacent connecting members 22 are rotatably connected through the rotating assembly 23. In this way, while achieving rotatable connection between two adjacent connecting members 22 through the rotating assembly 23, the arrangement of the first rotating member 231 and the second rotating member 232, which have different structures, is more flexible and diverse, adapting to different working conditions and usage requirements, and improving the processing flexibility of the operator.

[0042] In this embodiment, there are three connectors 22 and two rotating components 23, so that the three connectors 22 can be rotated together by the two rotating components 23.

[0043] It should be noted that the number of connectors 22 is not limited to this and can be adjusted according to working conditions and usage requirements.

[0044] like Figure 1 and Figure 2 As shown, the mating recess is a mating hole, and the end of the mating protrusion extends through the mating hole. The rotating assembly 23 also includes a locking member 233, which is sleeved on the end of the mating protrusion and is movably disposed along the extending direction of the mating protrusion. The locking member 233 has a locking surface, at least a portion of which is disposed opposite to the first rotating member 231. When the locking member 233 moves to the point where the locking surface abuts against the first rotating member 231, the locking member 233 prevents the first rotating member 231 from rotating due to the friction between the locking surface and the first rotating member 231. When the locking member 233 moves to the point where the locking surface separates from the first rotating member 231, the first rotating member 231 is rotatable relative to the second rotating member 232. In this way, by setting the locking member 233, each connecting member 22 (the rotating component 23 located between two adjacent connecting members 22) can be locked to prevent rotation. That is, during the process of the operator adjusting the position of the main body 11, the locking and anti-rotation function of the locking member 233 can be used to lock multiple connecting members 22 one by one, thereby making the position adjustment process of the main body 11 simpler and faster.

[0045] Specifically, during the adjustment process, the locking member 233 of the rotating component 23 with the rotation axis close to the wear tester 1 can be loosened first, and then the subsequent rotation and coarse adjustment can be carried out to quickly bring the main body 11 close to the test roller 101. Then the locking member 233 is locked, and the locking member 233 with the rotation axis away from the wear tester 1 is loosened to carry out rotation and fine adjustment to accurately fit the arc-shaped bonding surface 111 onto the outer circumferential surface of the test roller 101.

[0046] like Figure 1As shown, the connector 22 fixed on the abrasion testing machine 1 is the first connector 221. The first connector 221 includes a columnar body 2211 and a plate-shaped connecting part 2212. The plate-shaped connecting part 2212 is disposed on one end of the columnar body 2211. The plate-shaped connecting part 2212 includes a first sub-plate segment 2212a, a second sub-plate segment 2212b, and a third sub-plate segment 2212c that are connected to each other. The first sub-plate segment 2212a and the third sub-plate segment 2212c are arranged opposite to each other. The second sub-plate segment 2212b is located between the first sub-plate segment 2212a and the third sub-plate segment 2212c to connect the first sub-plate segment 2212a and the third sub-plate segment 2212c. The first sub-plate segment 2212a, the second sub-plate segment 2212b, and the third sub-plate segment 2212c surround each other to form a receiving space. The receiving space is used to receive the part 102 to be fixed on the abrasion testing machine 1. The first sub-plate segment 2212a and / or the third sub-plate segment 2212c are provided with through holes 2212d communicating with the receiving space. Fasteners 24 extend into the receiving space through the through holes 2212d and abut against the part to be fixed 102, thereby fixing the plate-shaped connecting part 2212 onto the part to be fixed 102. Thus, the aforementioned arrangement of the plate-shaped connecting part 2212 and its cooperation with the fasteners 24 enable the rapid installation and disassembly of the first connecting member 221, further improving measurement efficiency.

[0047] In this embodiment, the part to be fixed 102 is the rack structure of the wear testing machine 1. The first sub-plate segment 2212a, the second sub-plate segment 2212b and the third sub-plate segment 2212c are arranged in a "U" shape. The space it has is used to accommodate the rack structure. In this embodiment, the first sub-plate segment 2212a is provided with a through hole 2212d. The through hole 2212d is actually a threaded hole. By screwing the fastener 24 into the through hole 2212d, the screw head end of the fastener 24 abuts against the rack structure, and the first connector 221 can be fixed.

[0048] like Figure 1 and Figure 2 As shown, the plurality of connectors 22 also includes a third connector 223, which is rod-shaped and its length is adjustable. This arrangement further increases the range of motion of the adjustment end 21 (main body 11), thereby enhancing the versatility of the measuring device.

[0049] Optionally, the third connector 223 is a telescopic sleeve structure, in which the telescopic rod is telescopically installed in the outer sleeve. The outer sleeve is provided with a threaded hole. By screwing a bolt or set screw through the threaded hole until it abuts against the telescopic rod, the extended position of the telescopic rod can be fixed.

[0050] Alternatively, the third connector 223 may also be a damped telescopic rod.

[0051] In this embodiment, a rotating assembly 23 is provided between the end of the columnar body 2211 away from the plate-shaped connecting part 2212 and the end of the third connecting member 223. In this rotating assembly 23, the first rotating member 231 is provided on the end of the third connecting member 223, the second rotating member 232 is a bolt, one end of the second rotating member 232 forms a mating protrusion, which passes through the mating recess of the columnar body 2211 and the first rotating member 231, and the locking member 233 is a nut. When the locking member 233 is screwed until the locking member 233 and the first rotating member 231 abut against each other, rotation can be stopped.

[0052] like Figure 1 and Figure 2 As shown, the plurality of connectors 22 also includes a second connector 222. The second connector 222 is rod-shaped and includes a first sub-rod segment 2221 and a second sub-rod segment 2222 that are connected to each other. The end of the first sub-rod segment 2221 away from the second sub-rod segment 2222 forms an adjustment end 21, and the end of the second sub-rod segment 2222 away from the first sub-rod segment 2221 is provided with a rotating component 23. The first sub-rod segment 2221 and the second sub-rod segment 2222 are arranged at an included angle. In this way, the multi-segment second connector 222 can adapt to the connection position requirements of the main body 11 to realize the connection between the adjustment end 21 and the main body 11.

[0053] In this embodiment, the first sub-segment 2221 and the second sub-segment 2222 are arranged perpendicularly to each other.

[0054] It should be noted that the structure of the second connecting member 222 is not limited to this. For example, a rotating assembly 23 can be added between the first sub-rod segment 2221 and the second sub-rod segment 2222 so that the first sub-rod segment 2221 and the second sub-rod segment 2222 can also rotate on a rotation axis parallel to the central axis of the test roller 101.

[0055] In this embodiment, a rotating assembly 23 is provided between the end of the third connector 223 away from the first connector 221 and the end of the second sub-rod segment 2222 away from the first sub-rod segment 2221. In this rotating assembly 23, the second rotating member 232 is a bolt and is provided on the second sub-rod segment 2222 to form a mating protrusion. The first rotating member 231 is provided on the third connector 223. The second rotating member 232 passes through the mating recess of the third connector 223. The locking member 233 is a nut and is sleeved on the second rotating member 232. When the locking member 233 is screwed until the locking member 233 and the first rotating member 231 abut against each other, rotation can be stopped.

[0056] In this embodiment, there are two adjustment structures 20, which are spaced apart along the length of the main body 11 to adjust the support stability of the main body 11.

[0057] The usage procedure of the measuring device in this embodiment is as follows:

[0058] In use, first loosen all fasteners in the measuring device to ensure that all three connectors 22 can rotate freely and the third connector 223 can extend and retract. Then, insert the plate-shaped connecting part 2212 into the rack structure and tighten the set screw in the through hole 2212d until the set screw abuts against the rack structure, completing the initial fixing of the adjustment structure 20. Then, directly operate the main body 11 to move until the arc-shaped contact surface 111 is in contact with the outer peripheral surface of the test roller 101. Tighten and lock the locking part 233 at the first connector 221 (coarse adjustment to prevent rotation). Then, rotate the test roller 101 to drive the main body 11. 1. Rotate or operate the main body 11 to slide along the outer circumferential surface of the test roller 101. During this process, observe the measurement value of the second measuring part 13 until the second measuring part 13 shows a horizontal state. Then, tighten and lock the locking part 233 at the second connecting part 222 (fine adjustment to prevent rotation). Since the first measuring part 12 was set with an inclined posture during its initial installation, the measuring surface 121 can also be tilted at the preset inclined angle. Simply start the wear tester 1 to push the specimen clamping part 103 to push the specimen onto the measuring surface 121 with a preset ejection pressure. The reading displayed by the pressure sensor is the specimen contact pressure.

[0059] like Figure 1 As shown, this embodiment also provides an abrasion testing device, which includes an abrasion testing machine 1 and a measuring device disposed on the abrasion testing machine 1. The measuring device is the measuring device described above.

[0060] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0061] The measuring device mounted on the abrasion testing machine includes a measuring structure and an adjusting structure. The first measuring part of the measuring structure is mounted on its main body and has a measuring surface for measuring pressure values. The main body has an arc-shaped contact surface. The adjusting end of the adjusting structure is connected to the main body. The adjusting end has a fixed state and an adjusting state. In the adjusting state, the adjusting end is movably mounted relative to the abrasion testing machine. By moving the main body, the adjusting end adjusts the arc-shaped contact surface to contact the outer circumferential surface of the test roller and adjusts the measuring surface to a preset tilt angle. In the fixed state, the adjusting end is fixedly mounted relative to the abrasion testing machine. In this way, when the operator needs to measure the ejection pressure of the specimen in the abrasion testing machine, they only need to first switch the adjustment end to the adjustment state and move the main body until the arc-shaped contact surface is in contact with the outer circumferential surface of the test roller. Then, the main body moves the first measuring part to slide along the outer circumferential surface of the test roller until the measuring surface is tilted at a preset angle, thus obtaining a precise measurement posture. During the above operation, through the mutual contact relationship between the arc-shaped contact surface and the outer circumferential surface of the test roller, the first measuring part not only has a stable sliding adjustment movement process, but also has a stable relative position relationship with the outer circumferential surface of the test roller, which greatly reduces the difficulty of operation for the operator and improves the measurement efficiency. At this time, the operator can switch the adjustment end back to the fixed state, that is, the first measuring part can be fixed synchronously with the main body, thereby avoiding the interference of the freely rotating test roller on the measurement process of the first measuring part, further reducing the difficulty of operation for the operator. Moreover, the above settings comprehensively ensure that the first measuring part can perform pressure measurement in a precise preset posture, thereby ensuring that the measurement results have extremely high accuracy, thus solving the problem of inaccurate specimen pressure measurement results and low measurement efficiency in the existing abrasion testing machine.

[0062] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0063] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0064] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0065] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A measuring device provided on an abrasion tester (1) comprising a test drum (101), characterized in that, The measuring device includes: The measuring structure (10) includes a main body (11) and a first measuring part (12). The first measuring part (12) is disposed on the main body (11) and has a measuring surface (121) for measuring pressure values. The main body (11) has an arc-shaped contact surface (111). The adjustment structure (20) has an adjustment end (21) which is connected to the main body (11); The adjustment end (21) has a fixed state and an adjustment state. In the adjustment state, the adjustment end (21) is movably set relative to the abrasion testing machine (1). The adjustment end (21) moves the main body (11) to adjust the arc-shaped contact surface (111) to contact the outer peripheral surface of the test roller (101) and to adjust the measuring surface (121) to a preset tilt angle. In the fixed state, the adjustment end (21) is fixedly set relative to the abrasion testing machine (1).

2. The measuring device according to claim 1, characterized in that, The adjustment structure (20) includes at least three sequentially rotatably connected connectors (22), one end of each connector (22) forms the adjustment end (21), and the other end of each connector (22) is fixed on the abrasion testing machine (1). The rotation axis between two adjacent connectors (22) is parallel to the central axis of the test roller (101), and the multiple rotation axes are not overlapped.

3. The measuring device according to claim 2, characterized in that, The adjustment structure (20) further includes a rotating assembly (23), which comprises: A first rotating member (231) is disposed on one of two adjacent connecting members (22), and the first rotating member (231) has a mating recess; The second rotating member (232) is disposed on the other of the two adjacent connecting members (22). The second rotating member (232) has a mating protrusion that extends into the mating recess and is rotatably mated with the mating recess. The two adjacent connecting members (22) are rotatably connected by the rotating assembly (23).

4. The measuring device according to claim 3, characterized in that, The mating recess is a mating hole, and the end of the mating protrusion extends through the mating hole. The rotating assembly (23) also includes: A locking member (233) is sleeved on the end of the mating protrusion, and the locking member (233) is movably disposed along the extending direction of the mating protrusion; The locking member (233) has a locking surface, at least a portion of which is disposed opposite to the first rotating member (231). When the locking member (233) moves to the point where the locking surface abuts against the first rotating member (231), the locking member (233) prevents the first rotating member (231) from rotating by the frictional force between the locking surface and the first rotating member (231). When the locking member (233) moves to the point where the locking surface separates from the first rotating member (231), the first rotating member (231) is rotatable relative to the second rotating member (232).

5. The measuring device according to claim 3, characterized in that, The connector (22) fixed on the abrasion testing machine (1) is the first connector (221), and the first connector (221) includes: Column body(2211); A plate-shaped connecting part (2212) is disposed on one end of the columnar body (2211). The plate-shaped connecting part (2212) includes a first sub-plate segment (2212a), a second sub-plate segment (2212b), and a third sub-plate segment (2212c) that are connected to each other. The first sub-plate segment (2212a) and the third sub-plate segment (2212c) are disposed opposite to each other. The second sub-plate segment (2212b) is located between the first sub-plate segment (2212a) and the third sub-plate segment (2212c) to connect the first sub-plate segment (2212a) and the third sub-plate segment (2212c). The first sub-plate segment (2212a), the second sub-plate segment (2212b), and the third sub-plate segment (2212c) surround each other to form a receiving space. The receiving space is used to receive the part (102) to be fixed of the abrasion testing machine (1). The first sub-plate segment (2212a) and / or the third sub-plate segment (2212c) are provided with through holes (2212d) communicating with the accommodating space. Fasteners (24) extend into the accommodating space through the through holes (2212d) and abut against the part to be fixed (102) to fix the plate-shaped connecting part (2212) to the part to be fixed (102).

6. The measuring device according to claim 3, characterized in that, The plurality of connectors (22) further includes a second connector (222), the second connector (222) being rod-shaped and including a first sub-rod segment (2221) and a second sub-rod segment (2222) connected to each other, the end of the first sub-rod segment (2221) away from the second sub-rod segment (2222) forming the adjustment end (21), and the end of the second sub-rod segment (2222) away from the first sub-rod segment (2221) being provided with the rotating assembly (23); The first sub-segment (2221) and the second sub-segment (2222) are arranged at an angle to each other.

7. The measuring device according to claim 3, characterized in that, The plurality of connectors (22) further include a third connector (223), which is rod-shaped and whose length is adjustable.

8. The measuring device according to claim 1, characterized in that, The measuring structure (10) also includes; A second measuring unit (13) is provided on the main body (11) and is used to measure the tilt angle of the main body (11) relative to the horizontal plane.

9. The measuring device according to claim 8, characterized in that, The main body (11) is an arc-shaped plate. The plate surface of the main body (11) close to the test roller (101) forms the arc-shaped bonding surface (111), and the plate surface of the main body (11) away from the test roller (101) forms the mounting surface. The first measuring part (12) is a pressure sensor, and the second measuring part (13) is a level. Both the pressure sensor and the level are mounted on the mounting surface.

10. A wear testing device, characterized in that, The wear testing equipment includes a wear testing machine (1) and a measuring device disposed on the wear testing machine (1), wherein the measuring device is the measuring device according to any one of claims 1 to 9.

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