Thrust bearing wear indicating device

Abstract

The invention discloses a thrust bearing wear indicating device, and relates to the technical field of wear quantification. The device comprises a measuring screw rod, a rotating assembly and an outer sleeve, the measuring screw rod comprises a first section and a second section, the rotating assembly is arranged on the first section in a sleeving mode and connected with the first section through threads, and the second section is located outside the rotating assembly; the outer sleeve is rotationally arranged on the rotating assembly in a sleeving manner, and the outer sleeve is connected with the first section so as to drive the measuring screw rod to rotate in the rotating assembly and move in the axial direction of the rotating assembly through the threads; the rotating assembly is provided with a first mark and a central line parallel to the axial direction, and the outer sleeve is provided with a second mark. According to the invention, the identification is arranged on the rotating assembly and the outer sleeve, so that the abrasion loss of the thrust bearing is directly displayed, an operator can directly judge whether the abrasion loss of the bearing is normal or overrun or not only by observing the change of the identification, and the measurement process is greatly simplified.

Description

Technical Field

[0001] The present application relates to the technical field of wear quantification, and in particular to a thrust bearing wear indicator device. Background Art

[0002] A thrust bearing is a special bearing used to bear axial loads, also known as an axial bearing or thrust bearing. Thrust bearings are designed and used to support the rotational motion of shafts in mechanical equipment and prevent them from axial movement. Thrust bearings will wear during use. Once the wear of the thrust bearing exceeds the allowable safety threshold, it will cause the axial movement of the shaft system to exceed the tolerance, thereby causing the impeller to scratch adjacent components, affecting the safe operation of the equipment. Therefore, after the unit has been running for a period of time, the equipment operator needs to record the indication value of the thrust bearing wear indicator. The difference between this value and the initial indication value recorded when the equipment was put into use is the wear of the bearing. When the wear exceeds the safety domain value, the bearing needs to be replaced.

[0003] The thrust bearing wear indicator is usually installed at the tail of the bearing to be tested. When measuring, the equipment operator needs to remove the protective cover, press the measuring rod until its front end contacts the bearing to be tested, and then use a feeler gauge to measure the gap between the head of the measuring rod and the indicated part. This value is the indicated value of the thrust bearing wear indicator. The existing thrust bearing wear indicator requires an additional ruler to measure the indicated value and compare the difference with the recorded initial indicated value to obtain the wear amount of the bearing shell, and the measurement process is cumbersome. Summary of the invention

[0004] In view of this, the present application provides a thrust bearing wear indicator device, the main purpose of which is to solve the technical problem that the existing thrust bearing wear indicator requires an additional ruler to measure the indication value and compare the difference with the recorded initial indication value during measurement.

[0005] The present application provides a thrust bearing wear indication device, comprising a measuring screw, a rotating assembly and an outer sleeve, wherein:

[0006] The measuring screw comprises a first section and a second section, the rotating assembly is sleeved on the first section and connected to the first section via a thread, and the second section is located outside the rotating assembly;

[0007] The outer sleeve is rotatably mounted on the rotating assembly, and the outer sleeve is connected to the first section to drive the measuring screw to rotate in the rotating assembly and move along the axial direction of the rotating assembly through the thread;

[0008] The rotating assembly is provided with a first mark and a center line parallel to the axial direction, and the outer sleeve is provided with a second mark.

[0009] Optionally, the rotating assembly includes a fixed screw sleeve, a fixed sleeve and a spring ring, wherein the fixed screw sleeve is sleeved on the first section, the fixed sleeve is sleeved on a side of the fixed screw sleeve away from the second section, the spring ring is sleeved on the fixed screw sleeve and is located between the fixed screw sleeve and the outer sleeve, and the spring ring is used to limit the fixed sleeve in the axial direction of the rotating assembly.

[0010] Optionally, one end of the outer sleeve is rotatably sleeved on the fixed sleeve, and the other end of the outer sleeve is fixedly connected to the first section.

[0011] Optionally, the fixed screw sleeve, the fixed sleeve and the outer sleeve are all hollow cylindrical structures, the inner diameters of the fixed screw sleeve and the outer sleeve match the outer diameter of the measuring screw, and the inner diameter of the fixed sleeve matches the outer diameter of the fixed screw sleeve.

[0012] Optionally, a limiting step is provided in the middle of the fixed screw sleeve, the limiting step is an annular protrusion structure, the fixed sleeve abuts against the limiting step, and the limiting step is used to abut against the outer shell of the bearing to be tested.

[0013] Optionally, a first mark is provided at the junction of the fixed sleeve and the outer sleeve, and the first mark is an annular area perpendicular to the axial direction of the fixed sleeve, and the annular area is divided into a first safety zone and a first warning zone along a direction perpendicular to the axial direction of the fixed sleeve, the first safety zone is provided in a direction close to the fixed screw sleeve, and the first warning zone is provided in a direction close to the outer sleeve.

[0014] Optionally, a second mark is provided at the junction of the outer sleeve and the fixed sleeve, and the second mark is an annular area perpendicular to the axial direction of the outer sleeve, and the annular area is divided into a second safety zone and a second warning zone along a direction parallel to the axial direction of the fixed sleeve.

[0015] Optionally, a ratchet knob is also included, wherein:

[0016] The ratchet knob is fixedly connected to one end of the measuring screw connected to the outer sleeve, and the ratchet knob comprises a ratchet shaft, a ratchet, a ratchet spring, a rotating cap and a screw. The ratchet, ratchet spring, rotating cap and screw are connected to the ratchet shaft in sequence, and the ratchet shaft is fixedly connected to the measuring screw and the outer sleeve.

[0017] Optionally, the ratchet is rotatably connected to the ratchet shaft, and the ratchet includes a front wheel and a rear wheel, and the front wheel and the rear wheel are meshed through tooth surfaces.

[0018] Optionally, the ratchet spring is connected between the rear wheel and the rotating cap, the rotating cap is rotatably connected to the ratchet shaft, and the screw is fixedly connected to the ratchet shaft.

[0019] The present application provides a thrust bearing wear indicator device, comprising a measuring screw, a rotating assembly and an outer sleeve, wherein the measuring screw comprises a first section and a second section, the rotating assembly is sleeved on the first section and connected to the first section by a thread, and the second section is located outside the rotating assembly; the outer sleeve is rotatably sleeved on the rotating assembly, the outer sleeve is connected to the first section, so as to drive the measuring screw to rotate in the rotating assembly and move along the axial direction of the rotating assembly through the thread; the rotating assembly is provided with a first mark and a center line parallel to the axial direction, and the outer sleeve is provided with a second mark. The present application realizes the direct display of the thrust bearing wear by setting marks on the rotating assembly and the outer sleeve, and the operator does not need to use a feeler gauge for measurement, but only needs to observe the mark change to directly judge whether the thrust bearing wear is normal or exceeded, which greatly simplifies the measurement process and improves work efficiency. At the same time, since the measured value of the thrust bearing wear is directly converted into a visible mark change through a mechanical structure, the error that may be generated when the feeler gauge is used for measurement is reduced, thereby improving the accuracy and reliability of the measurement.

[0020] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 The overall structural diagram of a thrust bearing wear indicating device provided in an embodiment of the present application is shown;

[0023] Figure 2 A schematic cross-sectional structure diagram of a thrust bearing wear indicating device provided in an embodiment of the present application is shown;

[0024] Figure 3 A schematic diagram of the structure of the outer sleeve provided in an embodiment of the present application is shown;

[0025] Figure 4 A schematic diagram of the structure of a ratchet knob provided in an embodiment of the present application is shown;

[0026] Figure 5 A schematic diagram of the installation of a thrust bearing wear indicator device provided in an embodiment of the present application is shown;

[0027] Figure 6 A schematic diagram of a thrust bearing wear indicating device provided by an embodiment of the present application is shown in standby mode;

[0028] Figure 7 A schematic diagram showing that the wear amount of the thrust bearing under test provided by the embodiment of the present application is normal is shown;

[0029] Figure 8 A schematic diagram showing that the wear amount of the thrust bearing under test exceeds the limit provided in an embodiment of the present application is shown.

[0030] In the figure:

[0031] 1. Measuring screw; 2. Fixing screw sleeve; 3. Fixing sleeve; 31. Spring ring; 4. Outer sleeve; 5. Ratchet knob; 51. Ratchet shaft; 52. Ratchet; 53. Ratchet spring; 54. Turning cap; 55. Screw. DETAILED DESCRIPTION

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] See also Figure 1 , shows a schematic diagram of the overall structure of a thrust bearing wear indication device provided in an embodiment of the present application, including a measuring screw 1, a rotating assembly and an outer sleeve 4, wherein:

[0036] The measuring screw 1 comprises a first section and a second section, the rotating assembly is sleeved on the first section and connected to the first section via a thread, and the second section is located outside the rotating assembly;

[0037] In the above embodiment, the first section of the measuring screw 1 is the main body, which is a cylindrical structure, and the second section of the measuring screw 1 is the head, which is a conical structure. The second section of the measuring screw 1 is used to contact the bearing to be measured to measure the bearing wear, and the first section of the measuring screw 1 is used to push the second section forward to measure the bearing wear. The core technical purpose of measuring the bearing wear of this application is achieved through the measuring screw 1.

[0038] The rotating assembly is provided with threads inside, and the first section of the measuring screw 1 is provided with threads matching the threads, so that the measuring screw 1 can rotate and slide inside the rotating assembly. Through the close fit of the threads, the measuring screw 1 can achieve precise rotation and sliding inside the rotating assembly, so that the operator can accurately adjust the depth of the head of the measuring screw 1 entering the bearing housing to be measured by controlling the degree of rotation. At the same time, the threaded connection method reduces the shaking and deviation of the measuring screw 1 during the measurement process, and improves the stability and reliability of the measurement.

[0039] The outer sleeve 4 is rotatably mounted on the rotating assembly, and the outer sleeve 4 is connected to the first section to drive the measuring screw 1 to rotate in the rotating assembly and move along the axial direction of the rotating assembly through the thread;

[0040] In the above embodiment, the outer sleeve 4 is rotatably connected to the rotating assembly and fixedly connected to the first section of the measuring screw 1, that is, when the outer sleeve 4 is rotated, the outer sleeve 4 will be displaced from the rotating assembly, and the measuring screw 1 will also be displaced from the rotating assembly along the axial direction of the rotating assembly. Such a design allows the operator to control the measuring screw 1 by simply rotating the outer sleeve 4, without directly contacting or operating the measuring screw itself. This design simplifies the measurement operation and improves the convenience and comfort of the operation.

[0041] The rotating assembly is provided with a first mark and a center line parallel to the axial direction, and the outer sleeve 4 is provided with a second mark.

[0042] In the above embodiment, the first mark and the second mark are the indication areas indicating the amount of bearing wear, and cooperate with the measuring screw 1 to achieve the core technical purpose of the present application to intuitively display the amount of thrust bearing wear. Since the setting of the mark has a fixed reference point, the operator can ensure that the starting position and conditions of each measurement are consistent during multiple measurements, thereby improving the repeatability of the measurement. At the same time, the setting of the mark makes the measurement process more intuitive and easy to understand, without the need to use a feeler gauge for measurement, reducing the learning cost and difficulty of the operator, and improving the operator's experience and satisfaction.

[0043] See also Figure 2 , shows a schematic cross-sectional structure diagram of a thrust bearing wear indicating device provided by an embodiment of the present application. Further, the rotating assembly includes a fixed screw sleeve 2, a fixed sleeve 3 and a spring ring 31, wherein the fixed screw sleeve 2 is sleeved on the first section, the fixed sleeve 3 is sleeved on the side of the fixed screw sleeve 2 away from the second section, the spring ring 31 is sleeved on the fixed screw sleeve 2 and is located between the fixed screw sleeve 2 and the outer sleeve 4, and the spring ring 31 is used to limit the fixed sleeve 3 in the axial direction of the rotating assembly.

[0044] In the above embodiment, the stability of the rotating assembly in the axial direction is significantly improved by the combined design of the fixed screw sleeve 2, the fixed sleeve 3 and the spring ring 31. The measuring screw 1 can rotate forward or backward inside the rotating assembly to measure the bearing wear.

[0045] The rotating assembly includes a fixed screw sleeve 2, a fixed sleeve 3 and a spring ring 31. The fixed screw sleeve 2 is sleeved on the measuring screw 1, and the fixed sleeve 3 is sleeved on the fixed screw sleeve 2 through the spring ring 31. The spring ring 31 plays a role in limiting the sliding of the fixed sleeve 3, so that the fixed sleeve 3 can rotate relative to the fixed screw sleeve 2 without sliding. This design allows the operator to only change the orientation of the fixed sleeve 3 without changing the position of the fixed sleeve 3, that is, when aligning before the measurement begins, the fixed sleeve 3 is turned to rotate the first mark to a suitable position, but the position of the second mark is not affected.

[0046] See also Figure 3 , shows a schematic diagram of the structure of the outer sleeve provided in an embodiment of the present application. Further, one end of the outer sleeve 4 is rotatably sleeved on the fixed sleeve 3, and the other end of the outer sleeve 4 is fixedly connected to the first section.

[0047] In the above embodiment, the outer sleeve 4 is fixedly connected to the measuring screw 1 and is rotatably connected to the fixed sleeve 3, which means that when the outer sleeve 4 is rotated, the measuring screw 1 can be directly and efficiently driven to rotate and move. This direct transmission method reduces energy loss and friction resistance, improves transmission efficiency, and makes the measurement process faster and more accurate. When using this application, the operator only needs to rotate the outer sleeve 4 to achieve the extension and retraction of the measuring screw 1, and then perform the measurement operation.

[0048] Furthermore, the fixed screw sleeve 2 , the fixed sleeve 3 and the outer sleeve 4 are all hollow cylindrical structures, the inner diameters of the fixed screw sleeve 2 and the outer sleeve 4 match the outer diameter of the measuring screw 1 , and the inner diameter of the fixed sleeve 3 matches the outer diameter of the fixed screw sleeve 2 .

[0049] In the above embodiment, the fixed screw sleeve 2, the fixed sleeve 3 and the outer sleeve 4 are all sleeve structures, which are sleeved on the measuring screw 1 layer by layer, and the inner diameter and outer diameter of each component match each other, so that it is easier to achieve accurate alignment and close fit during the assembly process. This helps to improve the assembly accuracy and stability of the entire device and reduce performance problems caused by assembly errors.

[0050] Furthermore, a limiting step is provided in the middle of the fixed screw sleeve 2, and the limiting step is an annular protrusion structure. The fixed sleeve 3 abuts against the limiting step, and the limiting step is used to abut against the outer shell of the bearing to be tested.

[0051] In the above embodiments, the thrust bearings to be tested all have a shell structure. When the thrust bearing wear indicating device is used to measure the bearing to be tested, it is necessary to open a mounting hole on the shell of the bearing to be tested, insert the front end of the fixed screw sleeve 2 into the mounting hole, and when the limit step abuts against the shell of the bearing to be tested, the present application is fixed on the shell of the bearing to be tested for measurement. The present application does not limit the specific position and size of the limit step. The operator can adjust the position or size of the limit step according to the shell size of the bearing to be tested to ensure a close fit and accurate measurement between the present application and the bearing to be tested. The outside of the front end of the fixed screw sleeve 2 can also be provided with a thread to maintain a good match with the interface of the device to be tested and facilitate removal.

[0052] When the limiting step abuts against the outer shell of the bearing to be measured, the entire measuring device can be effectively fixed to prevent movement or offset during the measurement process, thereby ensuring the accuracy and stability of the measurement. As an annular raised structure, the limiting step not only increases the axial support area of ​​the fixed screw sleeve 2, but also enhances its structural strength. This makes the fixed screw sleeve 2 more stable and reliable when it is subjected to forces and torques from the measuring screw 1 and the bearing to be measured. At the same time, the direct contact between the limiting step and the outer shell of the bearing to be measured simplifies the installation process of the present application. The operator can firmly install the present application on the outer shell of the bearing to be measured without the need for additional fixing tools or steps, thereby improving work efficiency.

[0053] Furthermore, a first mark is provided at the junction of the fixed sleeve 3 and the outer sleeve 4. The first mark is an annular area perpendicular to the axial direction of the fixed sleeve 3. The annular area is divided into a first safety zone and a first warning zone along a direction perpendicular to the axial direction of the fixed sleeve 3. The first safety zone is provided in a direction close to the fixed screw sleeve 2, and the first warning zone is provided in a direction close to the outer sleeve 4.

[0054] In the above embodiment, a first mark is provided on the fixed sleeve 3, and the first mark is an annular area, which is divided into a first safety zone and a first warning zone along a direction perpendicular to the axial direction of the fixed sleeve 3, and the first safety zone and the first warning zone are parallel to each other. The width of the first safety zone and the first warning zone is determined by the safety domain value of the wear of the thrust bearing to be measured, the width of the first safety zone is equal to the safety domain value of the wear of the thrust bearing to be measured, and the width of the first warning zone is equal to twice the safety domain value of the wear of the thrust bearing to be measured. Assuming that the safety domain value of the wear of the thrust bearing to be measured is k, the width of the first safety zone is k, and the width of the first warning zone is 2k. The first safety zone and the first warning zone can be divided by color, for example, the first safety zone is painted green and the first warning zone is painted red. The present application does not limit the specific means of distinguishing the first safety zone and the first warning zone, and only needs to meet the requirements of clear visibility.

[0055] During the use of the present application, the outer sleeve 4 will move forward and backward as the measuring screw 1 moves forward, so that the first mark on the fixed sleeve 3 is gradually revealed. Since the first safety zone is arranged in the direction close to the fixed screw sleeve 2, and the width of the first safety zone is equal to the safe domain value of the wear of the thrust bearing to be measured, as long as the exposed part is only the first safety zone, it means that the wear of the bearing to be measured is within the safe range. Once the wear of the bearing to be measured exceeds the safety limit, the first warning zone will be exposed, and the operator can promptly realize that the wear of the bearing to be measured exceeds the limit and replace the bearing.

[0056] The clear division and clear marking of the first mark make it easier for operators to understand and operate during use. Operators do not need to make complex calculations and judgments, but only need to simply observe the exposure of the first mark to understand the measurement results.

[0057] Furthermore, a second mark is provided at the junction of the outer sleeve 4 and the fixed sleeve 3. The second mark is an annular area perpendicular to the axial direction of the outer sleeve 4. The annular area is divided into a second safety zone and a second warning zone along a direction parallel to the axial direction of the fixed sleeve 3.

[0058] In the above embodiment, the second mark is also an annular area, which is divided into a second safety zone and a second warning zone along a direction parallel to the axial direction of the outer sleeve 4, and the second safety zone and the second warning zone are connected end to end. The length of the second safety zone and the second warning zone is determined by the safety domain value of the wear of the thrust bearing to be measured and the pitch of the measuring screw 1. Specifically, the ratio of the length of the second safety zone to the second warning zone is equal to the ratio of the difference between the safety domain value of the wear of the thrust bearing to be measured and the pitch of the measuring screw 1 and the safety domain value of the wear of the thrust bearing to be measured. Assuming that the pitch of the measuring screw 1 is p, p is slightly larger than the safety domain value k of the wear of the thrust bearing, then the length of the second safety zone / the length of the second warning zone = k / (pk). The second safety zone and the second warning zone can be divided by color, for example, the second safety zone is painted green and the second warning zone is painted red. The present application does not limit the specific means of distinguishing the second safety zone and the second warning zone, and only needs to meet the requirements of clear visibility.

[0059] During the use of the present application, as the outer sleeve 4 rotates, the second mark on the fixed sleeve 3 that the center line faces will also change. When the center line faces the second safety zone, it means that the wear of the bearing to be measured is within the safety range. When the outer sleeve 4 rotates continuously so that the center line faces the second warning zone, it means that the wear of the bearing to be measured exceeds the safety limit. The operator can promptly realize that the wear of the bearing to be measured exceeds the limit and replace the bearing.

[0060] The design of the second mark provides intuitive visual feedback for the operator. By observing the correspondence between the second safety zone and the second warning zone and the center line, the operator can quickly determine whether the bearing to be tested is approaching or reaching the wear limit. This intuitive visual feedback helps to reduce misjudgments and missed judgments and improve the accuracy and reliability of measurements.

[0061] See also Figure 4, shows a schematic structural diagram of the ratchet knob provided in an embodiment of the present application, further comprising a ratchet knob 5, wherein the ratchet knob 5 is fixedly connected to one end of the measuring screw 1 connected to the outer sleeve 4, the ratchet knob 5 comprises a ratchet shaft 51, a ratchet 52, a ratchet spring 53, a rotating cap 54 and a screw 55, the ratchet 52, the ratchet spring 53, the rotating cap 54 and the screw 55 are sequentially connected to the ratchet shaft 51, and the ratchet shaft 51 is fixedly connected to the measuring screw 1 and the outer sleeve 4.

[0062] In the above embodiment, the ratchet knob 5 plays the role of fixing the torque of the present application before and during measurement. The existing thrust bearing wear indicator device relies on the operator to press the measuring rod until its front end contacts the bearing to be measured, and then use a feeler gauge to measure the gap between the head of the measuring rod and the step. This value is the indication value of the thrust bearing indicator. After the unit has been running for a period of time, the above operation is repeated to record the indication value of the thrust bearing indicator. The difference between this value and the initial value recorded when the equipment is put into use is the wear amount of the bearing. This results in the operator using different pressing forces during the two measurements, which will have a certain impact on the measurement accuracy.

[0063] The ratchet knob 5 provided in the present application allows the operator to adjust the position of the measuring screw 1 in fixed increments due to its structural characteristics, which helps to avoid over-adjustment or under-adjustment and improves the accuracy of the measurement. The ratchet knob 5 is threadedly connected to the measuring screw 1 and can be quickly disassembled for easy maintenance. The surface of the ratchet knob 5 can also be knurled to increase friction and facilitate use by the operator.

[0064] Furthermore, the ratchet 52 is rotatably connected to the ratchet shaft 51 , and the ratchet 52 includes a front wheel and a rear wheel, and the front wheel and the rear wheel are meshed through tooth surfaces.

[0065] In the above embodiment, the front wheel and the rear wheel in the ratchet knob 5 can be automatically locked after being rotated to a certain position, preventing the measuring screw 1 from being displaced due to external vibration or accidental touch. This locking function ensures the stability and reliability of the measurement results, which is particularly important in situations where the measurement state needs to be maintained for a long time.

[0066] Furthermore, the ratchet spring 53 is connected between the rear wheel and the rotating cap 54 , the rotating cap 54 is rotatably connected to the ratchet shaft 51 , and the screw 55 is fixedly connected to the ratchet shaft 51 .

[0067] In the above embodiment, when the pressure of the measuring screw 1 after contacting the bearing to be measured reaches a certain value, the front and rear ratchet wheels will slide, and the front and rear ratchet wheels will mesh again and make a clicking sound due to the restoring force of the ratchet spring 53. At this time, the outer sleeve 4 no longer rotates, and the measuring screw 1 also stops moving forward.

[0068] See also Figure 5, shows a schematic diagram of the installation of a thrust bearing wear indicator device provided by an embodiment of the present application. Before the present application is put into use, the fixed sleeve 3 is first rotated so that its center line faces a direction that is convenient for the operator to observe; then the fixed sleeve 3 and the outer sleeve 4 are adjusted so that the edge of the outer sleeve 4 coincides with the front end of the first safety zone on the fixed sleeve 3, and the boundary line between the second warning zone and the second safety zone on the outer sleeve 4 coincides with the center line on the fixed sleeve. The front end of the measuring screw 1 contacts the bearing to be measured, and the ratchet wheel 5 is turned. After hearing a sound, it is confirmed that the front end of the measuring screw 1 is in close contact with the bearing to be measured. See Figure 6 , shows a schematic diagram of the standby state of a thrust bearing wear indicator device provided by an embodiment of the present application. When the bearing to be tested starts to run, the edge of the outer sleeve 4 is at the end of the first warning zone of the fixed sleeve 3 to prevent the measuring screw 1 from contacting and wearing the bearing. When the bearing to be tested is worn after running for a period of time, the operator only needs to turn the outer sleeve 4 to make the front end of the measuring screw 1 contact the bearing to be tested; turn the ratchet knob 5, and after hearing a sound, confirm that the front end of the measuring screw 1 is in close contact with the bearing to be tested; at this time, observe the area of ​​the outer sleeve 4 corresponding to the center line of the fixed sleeve 3. If it corresponds to the second safety zone, see Figure 7 , it indicates that the wear amount is within the safety domain value k and can continue to run; if the corresponding second warning zone, see Figure 8 , it means that the wear exceeds the safety threshold value k and the thrust bearing bushing needs to be replaced.

[0069] The present application provides an overall structural schematic diagram of a thrust bearing wear indicating device, which includes a measuring screw 1, a rotating assembly and an outer sleeve 4, wherein the measuring screw 1 includes a first section and a second section, the rotating assembly is sleeved on the first section and connected to the first section through a thread, and the second section is located outside the rotating assembly; the outer sleeve 4 is rotatably sleeved on the rotating assembly, and the outer sleeve 4 is connected to the first section to drive the measuring screw 1 to rotate in the rotating assembly and move along the axial direction of the rotating assembly through the thread; a first mark and a center line parallel to the axial direction are provided on the rotating assembly, and a second mark is provided on the outer sleeve 4.

[0070] The present application realizes direct display of thrust bearing wear by setting marks on the rotating assembly and the outer sleeve. The operator does not need to use a feeler gauge for measurement, but only needs to observe the mark change to directly determine whether the thrust bearing wear is normal or exceeds the limit, which greatly simplifies the measurement process and improves work efficiency. At the same time, since the measured value of thrust bearing wear is directly converted into a visible mark change through the mechanical structure, the error that may be generated when manually measuring with a feeler gauge is reduced, thereby improving the accuracy and reliability of the measurement.

[0071] Those skilled in the art will appreciate that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily necessary for implementing the present application. Those skilled in the art will appreciate that the modules in the devices in the implementation scenario can be distributed in the devices of the implementation scenario according to the description of the implementation scenario, or can be changed accordingly and located in one or more devices different from the present implementation scenario. The modules of the above-mentioned implementation scenario can be combined into one module, or can be further split into multiple submodules.

[0072] The above serial numbers of this application are only for description and do not represent the advantages and disadvantages of the implementation scenarios. The above disclosure is only a few specific implementation scenarios of this application, but this application is not limited to them, and any changes that can be thought of by technicians in this field should fall within the scope of protection of this application.

Claims

1. A thrust bearing wear indicator device, characterized in that: It comprises a measuring screw (1), a rotating assembly and an outer sleeve (4), wherein: The measuring screw (1) comprises a first section and a second section, the rotating assembly is sleeved on the first section and connected to the first section via a thread, and the second section is located outside the rotating assembly; The outer sleeve (4) is rotatably mounted on the rotating assembly, and the outer sleeve (4) is connected to the first section to drive the measuring screw (1) to rotate in the rotating assembly and move along the axial direction of the rotating assembly through the thread; The rotating assembly is provided with a first mark and a center line parallel to the axial direction, and the outer sleeve (4) is provided with a second mark.

2. The device according to claim 1, characterized in that The rotating assembly comprises a fixed screw sleeve (2), a fixed sleeve (3) and a spring ring (31), wherein the fixed screw sleeve (2) is sleeved on the first section, the fixed sleeve (3) is sleeved on a side of the fixed screw sleeve (2) away from the second section, the spring ring (31) is sleeved on the fixed screw sleeve (2) and is located between the fixed screw sleeve (2) and the outer sleeve (4), and the spring ring (31) is used to limit the fixed sleeve (3) in the axial direction of the rotating assembly.

3. The device according to claim 2, characterized in that One end of the outer sleeve (4) is rotatably sleeved on the fixed sleeve (3), and the other end of the outer sleeve (4) is fixedly connected to the first section.

4. The device according to claim 3, characterized in that The fixed screw sleeve (2), the fixed sleeve (3) and the outer sleeve (4) are all hollow cylindrical structures; the inner diameters of the fixed screw sleeve (2) and the outer sleeve (4) match the outer diameter of the measuring screw (1); and the inner diameter of the fixed sleeve (3) matches the outer diameter of the fixed screw sleeve (2).

5. The device according to claim 4, characterized in that A limiting step is provided in the middle of the fixed screw sleeve (2), the limiting step being an annular protruding structure, the fixed sleeve (3) abuts against the limiting step, and the limiting step is used to abut against the outer shell of the bearing to be tested.

6. The device according to claim 3, characterized in that A first mark is provided at the junction of the fixed sleeve (3) and the outer sleeve (4); the first mark is an annular area perpendicular to the axial direction of the fixed sleeve (3); the annular area is divided into a first safety zone and a first warning zone along a direction perpendicular to the axial direction of the fixed sleeve (3); the first safety zone is provided in a direction close to the fixed screw sleeve (2), and the first warning zone is provided in a direction close to the outer sleeve (4).

7. The device according to claim 3, characterized in that A second mark is provided at the junction of the outer sleeve (4) and the fixed sleeve (3), wherein the second mark is an annular area perpendicular to the axial direction of the outer sleeve (4), and the annular area is divided into a second safety zone and a second warning zone along a direction parallel to the axial direction of the fixed sleeve (3).

8. The device according to claim 1, characterized in that Also included is a ratchet knob (5), wherein: The ratchet knob (5) is fixedly connected to one end of the measuring screw (1) connected to the outer sleeve (4), and the ratchet knob (5) comprises a ratchet shaft (51), a ratchet wheel (52), a ratchet spring (53), a rotating cap (54) and a screw (55). The ratchet wheel (52), the ratchet spring (53), the rotating cap (54) and the screw (55) are connected to the ratchet shaft (51) in sequence, and the ratchet shaft (51) is fixedly connected to the measuring screw (1) and the outer sleeve (4).

9. The device according to claim 8, characterized in that The ratchet (52) is rotatably connected to the ratchet shaft (51), and the ratchet (52) comprises a front wheel and a rear wheel, and the front wheel and the rear wheel are meshed through tooth surfaces.

10. The device according to claim 9, characterized in that The ratchet spring (53) is connected between the rear wheel and the rotating cap (54), the rotating cap (54) is rotatably connected to the ratchet shaft (51), and the screw (55) is fixedly connected to the ratchet shaft (51).

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