A friction characteristic measuring device having an end face contact state adaptive characteristic

Abstract

This invention discloses a friction characteristic measuring device with adaptive end-face contact state characteristics, comprising: a mounting base having a receiving cavity; a stationary ring assembly disposed within the receiving cavity and having a stationary ring; a rotating ring assembly adapted for transmission connection with a driving component and having a rotating ring, the rotating ring and the stationary ring being axially opposite each other in the friction characteristic measuring device and adapted to abut against the stationary ring; and an adjusting bearing disposed within the receiving cavity and supported between the stationary ring assembly and the inner wall of the receiving cavity, the adjusting bearing being used to adjust the position of the stationary ring assembly in the axial direction of the friction characteristic measuring device to ensure that the stationary ring and the rotating ring abut against each other. The friction characteristic measuring device disclosed in this invention has high reliability and can effectively ensure tight contact of the contact end faces during friction and wear tests.

Description

Technical Field

[0001] This invention relates to the field of detection device technology, and in particular to a friction characteristic measuring device with adaptive end-face contact state characteristics. Background Technology

[0002] With the development of technology, basic research equipment can be manufactured to simulate actual working conditions, so as to conduct performance research and testing on some key components in rotating equipment.

[0003] In related technologies, basic research equipment such as high-speed, high-load friction and wear testing benches and sealing test benches involve high test linear speeds (above 200 m / s) and large load variations (between 10 N and 15000 N). Under high-speed variable load conditions, the instability of the contact state at the test end face can lead to inaccurate test measurement results or damage to the test equipment. This places new technical requirements on the compensation methods for the end face contact state and the friction and wear characteristic measurement devices.

[0004] However, the reliability of basic research equipment in the current technology is relatively low, making it difficult to ensure adaptive end face fitting under high speed and variable load conditions. Summary of the Invention

[0005] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a friction characteristic measuring device with adaptive end-face contact state characteristics, which has high reliability and can effectively ensure tight contact of the contact end faces during friction and wear tests.

[0006] The friction characteristic measuring device with adaptive end-face contact state according to the present invention includes:

[0007] Mounting base, the mounting base having a receiving cavity;

[0008] A stationary ring assembly, wherein the stationary ring assembly is disposed within the receiving cavity and has a stationary ring;

[0009] A rotating ring assembly, the rotating ring assembly being adapted to be drivenly connected to a drive member and having a rotating ring, the rotating ring being axially opposite to the stationary ring in the friction characteristic measuring device and adapted to abut against the stationary ring;

[0010] An adjusting bearing is disposed within the receiving cavity and supported between the stationary ring assembly and the inner wall of the receiving cavity. The adjusting bearing is used to adjust the position of the stationary ring assembly in the axial direction of the friction characteristic measuring device so that the stationary ring and the moving ring abut against each other.

[0011] According to the friction characteristic measuring device of the present invention, the stationary ring assembly can be fixedly installed in the mounting base by adjusting the bearing, so that the stationary ring assembly can remain stationary relative to the rotating ring assembly. By fixing the rotating ring assembly to the driving member, the driving member can drive the rotating ring assembly to rotate relative to the stationary ring assembly, thereby generating frictional wear torque between the stationary and rotating rings. By setting the adjusting bearing, fixing the outer ring of the adjusting bearing to the mounting base, and fixing the inner ring of the adjusting bearing to the stationary ring assembly, the stationary ring assembly can wobble with the inner ring of the adjusting bearing. This ensures that the contact surfaces of the stationary and rotating rings are always in close contact, effectively improving the accuracy of the friction characteristic measuring device in measuring the friction characteristics of materials, making the friction characteristic measurement results repeatable, and also effectively improving the reliability of the friction characteristic measuring device.

[0012] In some examples of the present invention, the friction characteristic measuring device with end-face contact state adaptive characteristics further includes: at least one displacement detection element, which is disposed on the stationary ring assembly and used to detect the axial distance between the moving ring assembly and the stationary ring assembly.

[0013] In some examples of the present invention, the friction characteristic measuring device with adaptive end-face contact state further includes: a mounting plate, which is sleeved on the outside of the stationary ring assembly and movably connected to the stationary ring assembly.

[0014] In some examples of the present invention, the friction characteristic measuring device with adaptive end-face contact state further includes: at least one limiting member disposed in the receiving cavity and fixed to the mounting base, the limiting member engaging with the mounting plate to limit the movement of the mounting plate toward the bottom wall of the receiving cavity.

[0015] In some examples of the present invention, the friction characteristic measuring device with end face contact state adaptive characteristics further includes: a force detection element connected between the mounting plate and the mounting base;

[0016] Along the circumferential direction of the receiving cavity, the force detection element is used to limit the rotation of the mounting plate.

[0017] In some examples of the present invention, the stationary ring assembly includes: a stationary ring mounting base, wherein the stationary ring is mounted on the end of the stationary ring mounting base near the end of the moving ring assembly, and the stationary ring mounting base is fixed to the inner ring of the adjusting bearing.

[0018] In some examples of the invention, the outer ring of the adjusting bearing is connected to the bottom wall of the receiving cavity.

[0019] In some examples of the present invention, the moving ring assembly includes a moving ring mounting base, wherein the moving ring is mounted on the end of the moving ring mounting base near the end of the stationary ring assembly.

[0020] In some examples of the present invention, the moving ring assembly further includes: a pressure cap, wherein the moving ring is disposed between the pressure cap and the moving ring mounting base, the pressure cap being fixedly connected to the moving ring mounting base to press the moving ring against the moving ring mounting base.

[0021] In some examples of the present invention, the adjusting bearing is any one of a self-aligning ball bearing, a self-aligning roller bearing, and a self-aligning thrust bearing.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the friction characteristic measuring device according to an embodiment of the present invention;

[0025] Figure 2 This is a partial structural schematic diagram of a friction characteristic measuring device according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the dynamic ring assembly in the friction characteristic measuring device according to an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10 - Friction characteristic measuring device; 20 - Drive shaft;

[0029] 100 - Mounting base;

[0030] 110 - Receiving cavity; 120 - Inner bottom wall; 130 - Inner side wall; 140 - Second threaded hole;

[0031] 200-Stationary Ring Component;

[0032] 210 - Stationary ring; 220 - Stationary ring mounting base; 230 - Clearance hole; 240 - Weight reduction hole; 250 - First threaded hole; 260 - Stationary ring pin;

[0033] 300-Dynamic Ring Assembly;

[0034] 310 - Rotating ring; 320 - Rotating ring mounting base; 330 - Pressure cap; 340 - Rotating ring pin;

[0035] 400-Adjustable bearing;

[0036] 410 - Inner ring of the adjusting bearing; 420 - Outer ring of the adjusting bearing;

[0037] 500 - Displacement detection component; 600 - Limiting component; 700 - Force detection component; 800 - Mounting plate. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or a connection within two components or an interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0041] The terms "first," "second," and "third" (if applicable) in the specification, claims, and accompanying drawings of this invention 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 embodiments of the invention described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0042] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such as a process, method, system, product, or maintenance tool that includes a series of steps or units, not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or maintenance tool.

[0043] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0044] Figure 1 This is a schematic diagram of the friction characteristic measuring device 10 according to an embodiment of the present invention. Figure 2 This is a partial structural schematic diagram of the friction characteristic measuring device 10 according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the dynamic ring assembly 300 in the friction characteristic measuring device 10 according to an embodiment of the present invention. Figures 1-3 As shown, a friction characteristic measuring device 10 with adaptive end-face contact state according to an embodiment of the present invention includes: a mounting base 100 having a receiving cavity 110; a stationary ring assembly 200 disposed within the receiving cavity 110 and having a stationary ring 210; a rotating ring assembly 300 adapted for transmission connection with a driving member (not shown) and having a rotating ring 310, the rotating ring 310 being axially opposite to the stationary ring 210 of the friction characteristic measuring device 10 and adapted to abut against the stationary ring 210; and an adjusting bearing 400 disposed within the receiving cavity 110 and supported between the stationary ring assembly 200 and the inner wall of the receiving cavity 110, the adjusting bearing 400 being used to adjust the position of the stationary ring assembly 200 in the axial direction of the friction characteristic measuring device 10 so that the stationary ring 210 and the rotating ring 310 abut against each other.

[0045] Specifically, both the mounting base 100 and the receiving cavity 110 can be cylindrical structures. The mounting base 100 can be used to mount and support the adjusting bearing 400 and the stationary ring assembly 200. The central axes of the receiving cavity 110 and the mounting base 100 can coincide. The inner wall of the receiving cavity 110 can include an inner bottom wall 120 and an inner side wall 130. The inner side wall 130 is arranged around the inner bottom wall 120 in the circumferential direction. The extending direction of the inner side wall 130 can be parallel to the axial direction of the receiving cavity 110. A mounting hole (not shown in the figure) can be provided on the inner bottom wall 120. The mounting hole and the central axis of the receiving cavity 110 can coincide. The inner diameter of the mounting hole can match the outer ring 420 of the adjusting bearing 400.

[0046] One end of the adjusting bearing 400 can be fixedly fitted into the mounting hole. The outer ring 420 of the adjusting bearing 400 and the mounting hole can be connected by an interference fit. This arrangement allows the adjusting bearing 400 to be securely installed in the receiving cavity 110. One end of the stationary ring assembly 200 is fitted inside the inner ring 410 of the adjusting bearing 400. The stationary ring assembly 200 and the inner ring 410 of the adjusting bearing 400 can be connected by an interference fit. This arrangement allows the stationary ring assembly 200 to be securely installed inside the inner ring 410 of the adjusting bearing 400.

[0047] One end of the rotating ring assembly 300 can be fixedly connected to the drive shaft 20 of the drive component, so that the rotating ring assembly 300 can be driven to rotate by the drive component. The rotating ring 310 can be fixedly connected to the other end of the rotating ring assembly 300 away from the drive shaft 20, and the stationary ring 210 can be fixedly connected to the other end of the stationary ring assembly 200 away from the adjusting bearing 400. The rotating ring 310 and the stationary ring 210 can be arranged opposite each other and abut against each other. The abutting surfaces of the rotating ring 310 and the stationary ring 210 can be called contact end faces. The rotating ring 310 and the stationary ring 210 can each be a ring-shaped structure. The rotating ring assembly 300 can drive the rotating ring 310 to rotate relative to the stationary ring 210. This arrangement allows the rotating ring 310 and the stationary ring 210 to transmit frictional torque through dynamic friction.

[0048] According to the friction characteristic measuring device 10 of the present invention, the stationary ring assembly 200 can be fixedly installed in the mounting base 100 by adjusting the bearing 400, so that the stationary ring assembly 200 can remain stationary relative to the rotating ring assembly 300; by fixing the rotating ring assembly 300 to the driving member, the driving member can drive the rotating ring assembly 300 to rotate relative to the stationary ring assembly 200, thereby generating frictional wear torque between the stationary ring 210 and the rotating ring 310. By setting an adjusting bearing 400 and fixing the outer ring 420 of the adjusting bearing 400 to the mounting base 100, and fixing the inner ring 410 of the adjusting bearing 400 to the stationary ring assembly 200, the stationary ring assembly 200 can swing along with the inner ring 410 of the adjusting bearing 400. This ensures that the contact surfaces of the stationary ring 210 and the moving ring 310 are always in a tight fit, effectively improving the accuracy of the friction characteristic measuring device 10 in measuring the friction characteristics of materials, making the friction characteristic measurement results repeatable, and thus effectively improving the reliability of the friction characteristic measuring device 10.

[0049] Please continue reading Figure 1As shown, in some embodiments of the present invention, the friction characteristic measuring device 10 with end face contact state adaptive characteristics further includes: at least one displacement detection element 500, which is disposed on the stationary ring assembly 200 and is used to detect the axial distance between the moving ring assembly 300 and the stationary ring assembly 200.

[0050] Specifically, the number of displacement detection elements 500 can be one, two, or more; this embodiment of the invention does not impose a specific limitation on this. The following embodiment uses two displacement detection elements 500 as an example for explanation. One end of the displacement detection element 500 can be fixedly connected to the stationary ring assembly 200. The specific connection method can be welding, riveting, or threaded connection; this embodiment of the invention also does not impose a specific limitation on this. For example, a threaded hole (not shown in the figure) can be provided at one end of the stationary ring assembly 200, and the displacement detection element 500 can be fixedly installed in the threaded hole by means of a threaded connection, so that the displacement detection element 500 is fixedly connected to the stationary ring assembly 200. The other end of the displacement detection element 500 away from the stationary ring assembly 200 can be spaced apart from the rotating ring assembly 300. The axial directions of the displacement detection element 500 and the stationary ring assembly 200 can be parallel to each other. The two displacement detection elements 500 can be symmetrically arranged along the central axis of the stationary ring assembly 200. With this arrangement, the axial distance between the stationary ring assembly 200 and the rotating ring assembly 300 can be measured by the displacement detection element 500, and thus the amount of friction and wear between the stationary ring 210 and the rotating ring 310 can be measured.

[0051] Please continue reading Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the friction characteristic measuring device 10 with end face contact state adaptive characteristics further includes: a mounting plate 800, which is sleeved on the outside of the stationary ring assembly 200 and movably connected to the stationary ring assembly 200.

[0052] Specifically, the mounting plate 800 can be a ring-shaped structure, and the central axes of the mounting plate 800 and the stationary ring assembly 200 can coincide with each other. Along the axial direction of the stationary ring assembly 200, the mounting plate 800 can be movably sleeved on the outside of the stationary ring assembly 200. The mounting plate 800 and the stationary ring assembly 200 can be sleeved together by a key connection or a gear connection. This arrangement can restrict the rotation of the stationary ring assembly 200 along the circumferential direction of the receiving cavity 110 by the mounting plate 800.

[0053] Furthermore, in actual operation, along the axial direction of the receiving cavity 110, the test load (such as...) Figure 1The force (as indicated by F in the middle) can be transmitted through the inner bottom wall 120 of the receiving cavity 110 to the outer ring 420 of the adjusting bearing 400, causing the outer ring 420 of the adjusting bearing 400 to have a relative displacement tendency in the axial direction. Since the inner ring 410 of the adjusting bearing 400 is constrained and cannot move by the stationary ring assembly 200, the inner ring 410 of the adjusting bearing 400 and the stationary ring assembly 200 together generate the same force as the test load, and this force can be transmitted from the stationary ring assembly 200 to the stationary ring 210, and then from the stationary ring 210 to the rotating ring 310, thus achieving the application of an axial test load between the stationary ring 210 and the rotating ring 310.

[0054] Please continue reading Figure 1 As shown, in some embodiments of the present invention, the friction characteristic measuring device 10 with end face contact state adaptive characteristics further includes: at least one limiting member 600, the limiting member 600 is disposed in the receiving cavity 110 and fixed to the mounting base 100, the limiting member 600 is limited to cooperate with the mounting plate 800 to restrict the movement of the mounting plate 800 toward the bottom wall of the receiving cavity 110.

[0055] Specifically, the number of limiting members 600 can be one, two, or more, and this embodiment of the present invention does not impose a specific limitation. The following embodiment uses the example of multiple limiting members 600 for explanation. One end of the limiting member 600 can be fixedly connected to the inner sidewall 130 of the receiving cavity 110. The specific connection method can be welding, riveting, or threaded connection, and this embodiment of the present invention also does not impose a specific limitation. The other end of the limiting member 600 away from the inner sidewall 130 of the receiving cavity 110 can be used to abut against the mounting plate 800. Along the axial direction of the receiving cavity 110, the limiting member 600 can effectively restrict the mounting plate 800 from moving towards the inner bottom wall 120 of the receiving cavity 110 under the action of gravity. With this configuration, when the stationary ring 210 is worn, the position of the mounting plate 800 relative to the receiving cavity 110 will not change. The stationary ring assembly 200 can move upward along the axial direction of the receiving cavity 110 as the stationary ring 210 wears, thereby ensuring that the force transmission between the stationary ring assembly 200 and the mounting plate 800 is not affected.

[0056] Furthermore, multiple limiting members 600 can be spaced around the inner wall 130 of the receiving cavity 110 along the circumferential direction. This arrangement allows the multiple limiting members 600 to be inserted into the inner wall 130 of the receiving cavity 110 in a segmented structure, thereby effectively improving the strength of the limiting members 600 and further effectively restricting the installation plate 800 from moving toward the inner bottom wall 120 of the receiving cavity 110 under the action of gravity.

[0057] Please continue reading Figure 1As shown, in some embodiments of the present invention, the friction characteristic measuring device 10 with end face contact state adaptive characteristics further includes: a force detection element 700, which is connected between the mounting plate 800 and the mounting base 100; along the circumferential direction of the receiving cavity 110, the force detection element 700 is used to limit the rotation of the mounting plate 800.

[0058] Specifically, one end of the force sensing element 700 can be fixedly connected to the inner wall 130 of the receiving cavity 110. The specific connection method can be welding, riveting, or threaded connection. This embodiment of the invention does not specifically limit the connection method. The other end of the force sensing element 700 away from the inner wall 130 of the receiving cavity 110 can be fixedly connected to the mounting plate 800. The specific connection method can be welding, riveting, or threaded connection. This embodiment of the invention also does not specifically limit the connection method. For example, the other end of the force sensing element 700 away from the inner wall 130 of the receiving cavity 110 can be fixedly connected to the mounting plate 800 by a threaded connection. The mounting plate 800 can then restrict the stationary ring assembly 200 from rotating in the circumferential direction of the receiving cavity 110. This arrangement allows the frictional force generated by the contact end face friction between the moving ring assembly 300 and the stationary ring assembly 200 to be transmitted through the stationary ring assembly 200 to the mounting plate 800, and then from the mounting plate 800 to the force sensing element 700. Finally, the force sensing element 700 measures the frictional characteristic parameters between the stationary ring 210 and the moving ring 310.

[0059] Please continue reading Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the stationary ring assembly 200 includes: a stationary ring mounting base 220, a stationary ring 210 is mounted on the end of the stationary ring mounting base 220 near the moving ring assembly 300, and the stationary ring mounting base 220 is fixed to the inner ring 410 of the adjusting bearing 400.

[0060] Specifically, the stationary ring mounting base 220 can be a cylindrical structure. One end of the stationary ring mounting base 220 can be spaced apart from the rotating ring assembly 300, and the other end of the stationary ring mounting base 220 away from the rotating ring assembly 300 can be fitted into the inner ring 410 of the adjusting bearing 400. The stationary ring 210 can be disposed between the end faces of the stationary ring mounting base 220 and the rotating ring 310. The end face of the stationary ring 210 away from the rotating ring 310 can be fixedly connected to the end face of the stationary ring mounting base 220 away from the adjusting bearing 400 by a stationary ring pin 260. This arrangement allows the frictional torque to be transmitted from the stationary ring 210 to the stationary ring mounting base 220.

[0061] Furthermore, a countersunk hole (not shown in the figure) can be provided at the end of the stationary ring mounting base 220 adjacent to the rotating ring assembly 300. The shape and size of the countersunk hole and the stationary ring 210 can be matched with each other. This arrangement allows the stationary ring 210 to be installed in the countersunk hole. The inner sidewall of the countersunk hole and the outer diameter of the stationary ring 210 can be in a clearance fit state, which can limit the displacement of the stationary ring 210 in the radial direction of the stationary ring mounting base 220.

[0062] Furthermore, multiple clearance holes 230 can be provided at the end of the stationary ring mounting base 220 adjacent to the rotating ring assembly 300. The central axis of the clearance holes 230 can coincide with the central axis of the displacement detection element 500, and the number of clearance holes 230 can match the number of displacement detection elements 500. Along the axial direction of the stationary ring mounting base 220, the depth of the clearance holes 230 can be between 25mm and 35mm. For example, the depth of the clearance holes 230 can be 30mm. This arrangement can effectively reduce the metal around the displacement detection element 500 and avoid the metal near the detection end of the displacement detection element 500 from interfering with the measurement results.

[0063] Furthermore, a weight-reduction hole 240 can be provided at the end of the stationary ring mounting base 220 facing away from the rotating ring assembly 300, and the central axes of the weight-reduction hole 240 and the stationary ring mounting base 220 can coincide with each other. The end of the displacement detection element 500 facing away from the rotating ring assembly 300 can be inserted into the weight-reduction hole 240. This arrangement allows for convenient installation and removal of the displacement detection element 500 through the weight-reduction hole 240. At the same time, the weight-reduction hole 240 can also effectively reduce the weight of the stationary ring mounting base 220.

[0064] Furthermore, a first threaded hole 250 can be provided on the stationary ring mounting base 220. One end of the first threaded hole 250 can be positioned opposite to the inner ring 410 of the adjusting bearing 400. With this arrangement, a bolt (not shown in the figure) can be screwed into the other end of the first threaded hole 250 away from the adjusting bearing 400, so that the stationary ring mounting base 220 and the inner ring 410 of the adjusting bearing 400 can be separated from each other, so as to facilitate the disassembly and assembly of the stationary ring mounting base 220 and the adjusting bearing 400.

[0065] Furthermore, the bottom of the stationary ring mounting base 220 is provided with a stop (not shown in the figure), which can effectively prevent the limiting member 600 from falling off.

[0066] Please continue reading Figure 1As shown, in some embodiments of the present invention, the outer ring 420 of the adjusting bearing 400 is connected to the bottom wall of the receiving cavity 110. Specifically, the outer ring 420 of the adjusting bearing 400 and the inner bottom wall 120 of the receiving cavity 110 can be connected by an interference fit, which allows the adjusting bearing 400 to be securely installed in the receiving cavity 110. A second threaded hole 140 can be provided on the inner bottom wall 120 of the receiving cavity 110. One end of the second threaded hole 140 can be positioned opposite to the outer ring 420 of the adjusting bearing 400. This arrangement allows the inner bottom wall 120 of the receiving cavity 110 and the outer ring 420 of the adjusting bearing 400 to be separated by screwing a bolt (not shown in the figure) into the other end of the second threaded hole 140 away from the adjusting bearing 400, thereby facilitating the assembly and disassembly of the mounting base 100 and the adjusting bearing 400.

[0067] Please continue reading Figure 1 and Figure 3 As shown, in some embodiments of the present invention, the rotating ring assembly 300 includes a rotating ring mounting base 320, wherein a rotating ring 310 is mounted on the end of the rotating ring mounting base 320 near the stationary ring assembly 200.

[0068] Specifically, the rotating ring mounting base 320 can be a circular structure, and one end of the rotating ring mounting base 320 can be fixedly connected to the drive shaft 20 of the drive component. The other end of the rotating ring mounting base 320 away from the drive shaft 20 can be spaced apart from the stationary ring mounting base 220. The central axes of the rotating ring 310 and the rotating ring mounting base 320 can coincide with each other. The rotating ring 310 can be disposed between the rotating ring mounting base 320 and the stationary ring 210. The end face of the rotating ring 310 away from the stationary ring 210 can be fixedly connected to the rotating ring mounting base 320 through the rotating ring pin 340. This arrangement allows the frictional torque to be transmitted from the rotating ring mounting base 320 to the rotating ring 310.

[0069] Furthermore, a step (not shown in the figure) can be provided at one end of the rotating ring mounting base 320 adjacent to the stationary ring mounting base 220. The step can match the rotating ring 310. This arrangement can limit the displacement of the rotating ring 310 in the circumferential direction of the rotating ring mounting base 320 through the step.

[0070] Please continue reading Figure 3 As shown, in some embodiments of the present invention, the rotating ring assembly 300 further includes: a pressure cover 330, the rotating ring 310 being disposed between the pressure cover 330 and the rotating ring mounting base 320, the pressure cover 330 being fixedly connected to the rotating ring mounting base 320 to press the rotating ring 310 against the rotating ring mounting base 320.

[0071] Specifically, the pressure cap 330 can be a ring-shaped structure. The central axes of the pressure cap 330 and the moving ring 310 can coincide with each other. The pressure cap 330 can be fixedly connected to the end of the moving ring mounting base 320 adjacent to the stationary ring mounting base 220 by means of threaded connection. With this configuration, the moving ring 310 can be axially positioned by the pressure cap 330, so that the moving ring mounting base 320, the moving ring 310 and the moving ring pressure cap 330 can rotate together with the drive shaft 20 of the drive component.

[0072] Please continue reading Figure 1 and Figure 2 In some embodiments of the present invention, the adjusting bearing 400 is any one of a self-aligning ball bearing, a self-aligning roller bearing, and a self-aligning thrust bearing. Specifically, the present invention does not specifically limit the type of adjusting bearing 400. For example, the adjusting bearing 400 can be a self-aligning roller bearing. This configuration utilizes the self-aligning function of the self-aligning roller bearing, allowing the stationary ring mounting seat 220 to wobble with the inner ring 410 of the self-aligning roller bearing. This effectively solves the problem of uneven end faces between the stationary ring 210 and the moving ring 310 during processing or installation, effectively improving the accuracy, repeatability, and reliability of the friction characteristic measurement device 10.

[0073] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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 invention.

[0074] In the description of this invention, "first feature" and "second feature" may include one or more of the features.

[0075] In the description of this invention, "a plurality of" means two or more.

[0076] In the description of this invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0077] In the description of this invention, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0079] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A friction characteristic measuring device with adaptive end-face contact state characteristics, characterized in that, include: Mounting base, the mounting base having a receiving cavity; A stationary ring assembly, wherein the stationary ring assembly is disposed within the receiving cavity and has a stationary ring; A rotating ring assembly, the rotating ring assembly being adapted to be drivenly connected to a drive member and having a rotating ring, the rotating ring being axially opposite to the stationary ring in the friction characteristic measuring device and adapted to abut against the stationary ring; An adjusting bearing is disposed within the receiving cavity and supported between the stationary ring assembly and the inner wall of the receiving cavity. The adjusting bearing is used to adjust the position of the stationary ring assembly in the axial direction of the friction characteristic measuring device so that the stationary ring and the moving ring abut against each other. The stationary ring assembly includes a stationary ring mounting base, on which the stationary ring is mounted near the end of the moving ring assembly, and the stationary ring mounting base is fixed to the inner ring of the adjusting bearing, and the outer ring of the adjusting bearing is connected to the bottom wall of the receiving cavity.

2. The friction characteristic measuring device with adaptive end-face contact state as described in claim 1, characterized in that, Also includes: At least one displacement detection element is disposed on the stationary ring assembly and is used to detect the axial distance between the moving ring assembly and the stationary ring assembly.

3. The friction characteristic measuring device with adaptive end-face contact state as described in claim 2, characterized in that, Also includes: The mounting plate is sleeved on the outside of the stationary ring assembly and is movably connected to the stationary ring assembly.

4. The friction characteristic measuring device with adaptive end-face contact state as described in claim 3, characterized in that, Also includes: At least one limiting member is disposed within the receiving cavity and fixed to the mounting base, the limiting member engaging with the mounting plate to restrict the movement of the mounting plate toward the bottom wall of the receiving cavity.

5. The friction characteristic measuring device with adaptive end-face contact state as described in claim 4, characterized in that, Also includes: A force sensing element, wherein the force sensing element is connected between the mounting plate and the mounting base; Along the circumferential direction of the receiving cavity, the force detection element is used to limit the rotation of the mounting plate.

6. The friction characteristic measuring device with adaptive end-face contact state according to any one of claims 1-5, characterized in that, The rotating ring assembly includes a rotating ring mounting base, wherein the rotating ring is mounted on the end of the rotating ring mounting base near the stationary ring assembly.

7. The friction characteristic measuring device with adaptive end-face contact state as described in claim 6, characterized in that, The rotating ring assembly further includes a pressure cap, wherein the rotating ring is disposed between the pressure cap and the rotating ring mounting base, and the pressure cap is fixedly connected to the rotating ring mounting base to press the rotating ring against the rotating ring mounting base.

8. The friction characteristic measuring device with adaptive end-face contact state as described in claim 1, characterized in that, The adjusting bearing is any one of self-aligning ball bearings, self-aligning roller bearings, and self-aligning thrust bearings.

Images