Tapered roller bearing inner ring raceway on-line detection tool
By setting sliding support components and ball structure on the measuring table of the bearing inner ring measuring tool, the problems of large friction, low efficiency and poor accuracy during measurement of bearing inner ring are solved, and more efficient and accurate measurement is achieved.
Patent Information
- Application Number
- CN202421522407.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-30
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-06-30
AI Technical Summary
In the prior art, the bearing inner ring is more frictional when rotating on the measuring table, resulting in large rotation resistance, low measurement efficiency, and large contact area are easily affected by foreign matters, affecting the measurement accuracy.
A tapered roller bearing inner ring raceway online inspection tool is designed. By setting a sliding support member on the measuring table and setting a ball structure in the sliding support member, the sliding friction force is converted into rolling friction force, reducing rotation resistance, and reducing contact area to improve measurement accuracy.
It effectively reduces the resistance to the rotation measurement of the bearing inner ring, improves the measurement efficiency and accuracy, and avoids measurement errors caused by excessive contact area.
Smart Images
Figure CN222837821U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of bearing raceway measurement, and is an online detection tool for the inner ring raceway of a tapered roller bearing. Background Art
[0002] Bearings are an important component widely used in various mechanical equipment. Their main function is to reduce friction and allow relatively moving parts to rotate or move smoothly. The quality of bearings directly affects the operating performance and life of mechanical equipment. Therefore, the quality control of bearings is very important. The inner ring of the bearing is one of the main structures of the bearing, which is used to match and rotate with the shaft. In the quality control process of bearings, the measurement of the inner ring raceway of the bearing is an important link.
[0003] In the prior art, the measurement of the inner ring of the bearing is usually carried out by placing the inner ring of the bearing to be measured on a measuring table and rotating it one circle, so as to compare and measure different parts of the inner ring of the bearing, thereby judging whether the size and shape of the inner ring of the bearing meet the design requirements. However, due to the large friction between the inner ring of the bearing and the table during the rotation of one circle on the table, the rotation resistance is large and the measurement efficiency is low. In addition, the contact area between the inner ring of the bearing and the measuring table is large. If there is foreign matter on the measuring table, it will affect the measurement accuracy of the bearing and may also cause wear on the bearing surface.
[0004] Therefore, it is necessary to improve the existing bearing raceway inner ring measurement technology. Utility Model Content
[0005] The utility model aims to provide an online detection tool for the inner ring raceway of a tapered roller bearing, which can reduce the friction between the inner ring of the bearing and the measuring table when measuring the inner ring raceway of the bearing, thereby improving the measuring efficiency and the measuring accuracy.
[0006] This application is implemented through the following technical solutions, specifically:
[0007] A tool for online detection of the inner ring raceway of a tapered roller bearing, comprising: a measuring table fixedly arranged above a base; a limit support mechanism located on the measuring table; a sliding support component fixedly arranged above the measuring table; and a measuring mechanism connected to both ends of the measuring table; characterized in that: the sliding support component is provided with a linear groove and an upper cover, and the upper cover is arranged on the linear groove; at least one ball structure is arranged in the linear groove, and the upper cover is provided with at least one ball hole, and the ball hole is arranged corresponding to the ball structure and the diameter of the ball hole is larger than the diameter of the ball structure.
[0008] In this solution, by arranging a sliding support part on the measuring table and arranging a ball structure in the sliding support part, the sliding friction between the inner ring of the bearing to be measured and the measuring table during the rotation measurement is converted into the rolling friction between the inner ring of the bearing to be measured and the ball structure, thereby reducing the resistance of the rotation measurement of the inner ring of the bearing to be measured. In addition, the contact area between the inner ring of the bearing to be measured and the measuring table is reduced, further reducing the influence of the measuring table on the measurement accuracy.
[0009] As a preferred technical solution of the ball structure in the sliding support component of the present application, the ball structure includes: at least one second ball abutting the lower end of the first ball; the lower end of the first ball is located in a circular groove, and at least one of the second balls is arranged in a circle at the bottom of the circular groove.
[0010] In this technical solution, by maintaining the center of gravity of each second ball on the outside of the circular groove, when the ball structure supports the inner ring of the bearing to be tested, the first ball will not sink from the middle of at least one second ball under the action of the gravity of the inner ring of the bearing to be tested, which helps to avoid the situation where the ball structure is stuck.
[0011] Furthermore, no less than three sliding support components are arranged at equal intervals on the measuring table.
[0012] As a preferred technical solution of the measuring mechanism of the present application, the measuring mechanism includes a first measuring point arranged at the lower end of the measuring table, a second measuring point arranged at the upper end of the measuring table, a first raceway measuring instrument connected to the first measuring point, and a second raceway measuring instrument connected to the second measuring point.
[0013] As a further technical means of the previous preferred technical scheme, in this technical scheme, the first raceway measuring instrument is used to measure at least one parameter of the raceway size and size deviation of the inner ring of the bearing to be tested; the second raceway measuring instrument is used to measure at least one parameter of the cone angle deviation and verticality of the inner ring of the bearing to be tested.
[0014] In this technical solution, multiple parameters of the inner ring of the bearing to be measured can be measured by a first raceway measuring instrument connected to the first measuring point and a second raceway measuring instrument connected to the second measuring point.
[0015] Furthermore, the second measuring point is arranged on a second slideway at the upper end of the measuring table; and a second moving mechanism for controlling the second measuring point to move along the second slideway is provided at the lower end of the second slideway.
[0016] In this technical solution, the setting of the second slideway enables the second measuring point to be adjusted in position according to the size of the inner ring of the bearing to be measured, so as to perform precise measurement, thereby improving the universality of the online detection tooling for the inner ring raceway of tapered roller bearings for measuring inner rings of bearings of different sizes.
[0017] As a preferred technical solution of the limit support mechanism of the present application, the measuring table is arranged on the base at an angle downward; the limit support mechanism includes a fixed support rod arranged at the lower end of the measuring table and a movable support rod arranged in the first slide at the left end of the measuring table; a first moving mechanism for controlling the movement of the movable support rod along the first slide is provided at the lower end of the first slide.
[0018] Furthermore, the tapered roller bearing inner ring raceway online detection tooling also includes: a knob arranged at the bottom of the measuring table; the knob is used to fix the position of the first moving mechanism and / or the second moving mechanism when in a tightened state; or to allow the first moving mechanism to move along the first slide and / or the second moving mechanism to move along the second slide when in a non-tightened state.
[0019] As a further technical means of the above preferred technical scheme, in this technical scheme, the online detection tooling for the inner ring raceway of the tapered roller bearing also includes: a host computer connected to the measuring mechanism, the host computer includes a data acquisition module for collecting measurement data of the measuring mechanism, a display module for displaying the measurement data and a communication module for transmitting the measurement data.
[0020] The beneficial effects of this application are:
[0021] 1. The present application provides a sliding support part on the measuring table of the tapered roller bearing inner ring raceway online detection tooling, and provides a ball structure in the sliding support part, so as to convert the sliding friction between the inner ring of the bearing to be measured and the measuring table during the rotation measurement into the rolling friction between the inner ring of the bearing to be measured and the ball structure, thereby reducing the resistance of the rotation measurement of the inner ring of the bearing to be measured. In addition, the technical solution of the present application reduces the contact area between the inner ring of the bearing to be measured and the measuring table, further reducing the influence of the measuring table on the measurement accuracy.
[0022] 2. The present application can measure multiple parameters of the inner ring of the bearing to be measured by setting a first raceway measuring instrument connected to the first measuring point and a second raceway measuring instrument connected to the second measuring point; and the second measuring point is set in the second slideway, so that the second measuring point can be moved along the second slideway according to the size of the inner ring of the bearing to be measured, so as to adjust the position for accurate measurement, thereby improving the universality of the tapered roller bearing inner ring raceway online detection tooling for measuring bearing inner rings of different sizes.
[0023] 3. This application realizes automatic data collection by the host computer, which is convenient for data analysis and comparison; it effectively improves the measurement accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a structural schematic diagram of the online detection tooling for the inner ring raceway of a tapered roller bearing;
[0025] Figure 2 It is a structural schematic diagram of a sliding support component;
[0026] Figure 3 is a cross-sectional schematic diagram of a sliding support component;
[0027] Figure 4 This is a schematic diagram of the system module of the host computer.
[0028] Figure numerals: 1. base; 2. measuring table; 3. limit support mechanism; 4. sliding support component; 41. linear groove; 42. upper cover; 421. ball hole; 43. ball structure; 431. first ball; 432. second ball; 5. measuring mechanism; 51. first measuring point; 52. second measuring point; 53. first roller measuring instrument; 54. second roller measuring instrument; 22. second slide; 220. second moving mechanism; 31. fixed support rod; 21. first slide; 32. movable support rod; 210. first moving mechanism; 6. knob; 7. host computer; 71. data acquisition module; 72. display module; 73. communication module. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.
[0031] This application is a mechanical instrument using a comparative measurement method, which is used to measure various parameters of the inner ring raceway of a tapered roller bearing. After the measuring instrument is adjusted by standard parts for the first use, it can directly measure whether the inner ring raceway of a tapered roller bearing is qualified or not. The basic structure and main mechanism design of the technical solution of this application are as follows:
[0032] Please refer to Figure 1 , Figure 1 A schematic diagram of a tool structure for online detection of the inner ring raceway of a tapered roller bearing provided in some embodiments of the present application. The tool structure for online detection of the inner ring raceway of a tapered roller bearing illustrated in the figure includes:
[0033] A measuring table 2 fixedly disposed above the base 1; a position limiting support mechanism 3 located on the measuring table 2; a sliding support component 4 fixedly disposed above the measuring table 2; and a measuring mechanism 5 connected to both ends of the measuring table 2;
[0034] The sliding support component 4 is provided with a linear groove 41 and an upper cover 42, and the upper cover 42 is arranged on the linear groove 41; at least one ball structure 43 is arranged in the linear groove 41, and the upper cover 42 is provided with at least one ball hole 421, and the ball hole 421 is arranged corresponding to the ball structure 43 and the diameter of the ball hole 421 is larger than the diameter of the ball structure 43.
[0035] Specifically, in some embodiments of the present application, the base 1 is fixed on a workbench or the ground to ensure the stability and reliability of the tapered roller bearing inner ring raceway online detection tooling during the measurement process. The measuring table 2 is used to place the inner ring of the bearing to be measured. Optionally, based on the shape of the inner ring of the bearing, the measuring table 2 can be set as a circular table, or a circular table with scale markings. The limit support mechanism 3 is used to stabilize the position of the inner ring of the bearing to prevent displacement during the measurement process and ensure the accuracy of the measurement. The sliding support component 4 is fixed above the measuring table 2 and contacts the bottom of the inner ring of the bearing to be measured. The measuring mechanism 5 is used to measure the raceway size and other related parameters of the inner ring of the bearing to be measured.
[0036] The sliding support component 4 also includes a linear groove 41 disposed in the sliding support component 4 for accommodating a ball structure 43, an upper cover 42 disposed on the linear groove 41 for covering the linear groove 41 and protecting the internal structure, and a ball structure 43. The ball structure 43 corresponds to the ball hole 421 on the upper cover 42, and the diameter of the ball hole 421 is larger than the diameter of the ball structure 43, thereby ensuring that the upper end of the ball structure 43 is exposed through the ball hole 421 and contacts the bottom of the inner ring of the bearing to be tested, and then the inner ring of the bearing to be tested is driven to rotate on the measuring table 2 by the rolling of the ball structure 43. Furthermore, the provision of at least one ball structure 43 in the linear groove 41 can meet the sliding support requirements of the inner rings of the bearings to be tested of different sizes, thereby improving the universality of the online detection tooling for the inner ring raceway of the tapered roller bearing.
[0037] Compared with the prior art method of placing the inner ring of the bearing to be measured on the measuring table 2 for rotation measurement, this embodiment converts the sliding friction between the inner ring of the bearing to be measured and the measuring table during the rotation measurement into rolling friction by setting a sliding support component 4. This conversion significantly reduces the resistance of the inner ring of the bearing during rotation, and improves the fluency and efficiency of the measurement process. In addition, since the diameter of the ball structure 43 is smaller than the corresponding ball hole 421, the contact area between the inner ring of the bearing and the measuring table 2 is minimized, thereby reducing the measurement error that may be caused by excessive contact area, and further improving the measurement accuracy.
[0038] Based on the above embodiment, as a preferred specific embodiment of the ball structure 43, please refer to Figures 2 to 3 . Figure 2 shows a structural schematic diagram of a sliding support component, Figure 3 Figure 2 is a cross-sectional schematic diagram of a sliding support component. Figures 2-3 As shown, the ball structure 43 includes: at least one second ball 432 abutting against the lower end of the first ball 431; the lower end of the first ball 431 is located in a circular groove, and at least one second ball 432 is arranged in a circle at the bottom of the circular groove.
[0039] Specifically, the ball structure 43 is a core component of the sliding support component 4. In this embodiment, the ball structure 43 is mainly composed of a first ball 431 and a second ball 432. Among them, the first ball 431 is a larger ball, located at the top of the ball structure 43, and can directly contact the inner ring of the bearing to be measured through the ball hole of the upper cover 42. Its lower end is arranged in a circular groove, which allows the first ball 431 to rotate freely therein, thereby reducing friction and providing a stable support point. The second ball 432 includes a plurality of second balls 432 that are smaller than the first ball 431, and the plurality of second balls 432 are located in the circular groove at the lower end of the first ball 431. The second balls are arranged in a circular shape and evenly distributed at the bottom of the circular groove so that when the first ball 431 rotates, the second ball 432 can provide uniform support and stability, thereby reducing the measurement error caused by uneven support.
[0040] This embodiment provides uniform support and stability by maintaining the center of gravity of each second ball on the outside of the circular groove. When the ball structure supports the inner ring of the bearing to be tested, the first ball will not sink into the middle of at least one second ball under the action of the gravity of the inner ring of the bearing to be tested, which helps to avoid the situation where the ball structure is stuck and ensures the balance and stability of the inner ring of the bearing during the measurement process.
[0041] On the basis of the above embodiment, as a preferred specific embodiment of the sliding support component 4, no less than three sliding support components 4 are arranged at equal intervals on the measuring table 2.
[0042] Specifically, the equal interval arrangement requires that no less than three sliding support components 4 are evenly distributed along the length and angle of the measuring table 2, so as to ensure that the inner ring of the bearing can obtain the same level of support force when placed on the measuring table, which helps to reduce the measurement error caused by uneven support. Optionally, with the center point of the measuring table 2 as the center of the circle, the sliding support components 4 are arranged at equal distances along the radial direction, and the angle between each sliding support component 4 is 120 degrees.
[0043] This embodiment can ensure that the inner ring of the bearing to be measured is fully supported during the measurement process, thereby avoiding inaccurate measurement or instrument damage due to insufficient support.
[0044] In some embodiments, the measuring mechanism 5 includes a first measuring point 51 disposed at the lower end of the measuring table 2, a second measuring point 52 disposed at the upper end of the measuring table, a first rolling measuring instrument 53 connected to the first measuring point 51, and a second rolling measuring instrument 54 connected to the second measuring point 52.
[0045] Specifically, the first rolling contact measuring instrument 53 and the second rolling contact measuring instrument 54 are both micrometers.
[0046] Furthermore, the first raceway measuring instrument 53 is used to measure at least one parameter of the raceway size and size deviation of the inner ring of the bearing to be tested; the second raceway measuring instrument 54 is used to measure at least one parameter of the cone angle deviation and verticality of the inner ring of the bearing to be tested.
[0047] The operation process of the measuring mechanism 5 of this embodiment includes: firstly, placing the inner ring of the bearing to be measured on the sliding support component 4 of the measuring table 2, ensuring that the outer wall of the inner ring of the bearing to be measured is aligned with the first measuring point 51 and the second measuring point 52 respectively, and the distance between the first measuring point 51 and the second measuring point 52 is the diameter of the inner ring of the bearing to be measured. Start the first raceway measuring instrument 53 and the second raceway measuring instrument 54, rotate the inner ring of the bearing to be measured in batches, and record the readings of the first raceway measuring instrument 53 and the second raceway measuring instrument 54 after one rotation as the measurement data for evaluating whether the inner ring of the bearing meets the design specifications and quality standards. This embodiment can accurately measure various parameters of the inner ring of the bearing to be measured by setting the first raceway measuring instrument 53 and the second raceway measuring instrument 54.
[0048] Based on the above embodiment, as a preferred specific embodiment of the measuring mechanism 5, please continue to refer to Figure 1 The second measuring point 42 is disposed on the second slideway 22 at the upper end of the measuring table 2 ; a second moving mechanism 220 for controlling the second measuring point 42 to move along the second slideway 22 is disposed at the lower end of the second slideway 22 .
[0049] Specifically, the second slideway 22 provides a guiding and moving path to ensure that the second measuring point 42 remains stable and accurate during the movement. A second moving mechanism 220 for controlling the movement of the second measuring point 42 along the second slideway 22 is provided at the lower end of the second slideway 22, so that the measuring mechanism 5 can adapt to the measurement requirements of bearing inner rings of different sizes and shapes. Optionally, the second moving mechanism 220 can be electric, pneumatic or manual, depending on the design requirements and operational convenience of the measuring instrument.
[0050] In one implementation, the measuring table 2 is arranged on the base 1 at an angle downward; the limiting support mechanism 3 includes a fixed support rod 31 arranged at the lower end of the measuring table 2 and a movable support rod 32 arranged in the first slide 21 at the left end of the measuring table 2; the lower end of the first slide 21 is provided with a first moving mechanism 210 for controlling the movable support rod 32 to move along the first slide 21.
[0051] Specifically, in this embodiment, the measuring table 2 is designed to be arranged on the base 1 at an angle downward, which helps to reduce errors during the measurement process and facilitates the operator to observe and measure the inner ring of the bearing.
[0052] The fixed support rod 31 is arranged at the lower end of the measuring table 2 to provide a stable support point for the measuring table 2, ensuring stability and reliability during the measurement process. The movable support rod is arranged in the first slideway 21 at the left end of the measuring table 2, and can be moved along the slideway according to the measurement needs to adapt to the support requirements of different positions, thereby ensuring that the distance between the first measuring point 51 and the second measuring point 52 is the maximum linear distance of the inner ring of the bearing to be measured. Optionally, the first moving mechanism 210 can be electric, pneumatic or manual, depending on the design requirements and operational convenience of the online detection tooling for the inner ring raceway of the tapered roller bearing.
[0053] In addition, the limit support mechanism 5 is arranged at the left end and the lower end of the measuring table 2 so that the inner ring of the bearing to be tested can be placed into the tapered roller bearing inner ring raceway online detection tooling from the right end of the measuring table 2, which facilitates the entry and exit of the inner ring of the bearing to be tested and improves the disassembly efficiency.
[0054] The embodiments of the present application can improve the flexibility and adaptability of the measurement process by setting the inclination of the measurement table and accurately controlling the limit support mechanism.
[0055] In one implementation, the tapered roller bearing inner ring raceway online detection tooling also includes: a knob 6 arranged at the bottom of the measuring table 2; the knob 6 is used to fix the position of the first moving mechanism 210 and / or the second moving mechanism 220 when in a tightened state; or to allow the first moving mechanism 210 to move along the first slide 21 and / or the second moving mechanism 220 to move along the second slide 22 when in a non-tightened state.
[0056] Specifically, the embodiment of the present application reduces the difficulty of operating the tapered roller bearing inner ring raceway online detection tooling by setting a knob 6 to control the fixation and movement of the first moving mechanism 210 and / or the second moving mechanism 220. The connection method of the above-mentioned knob 6 and the first moving mechanism 210 and / or the second moving mechanism 220 is a knob-connecting rod control structure commonly used in the art, and this application will not repeat it.
[0057] In one implementation, reference Figure 4 The tapered roller bearing inner ring raceway online detection tool further includes: a host computer 7 connected to the measuring mechanism 5, the host computer 7 includes a data acquisition module 71 for acquiring measurement data of the measuring mechanism 5, a display module 72 for displaying the measurement data, and a communication module 73 for transmitting the measurement data.
[0058] Specifically, this embodiment realizes automatic data collection by the host computer, facilitates analysis and comparison of the measurement data of the inner raceway of the bearing, and effectively improves the measurement accuracy and efficiency. Optionally, the communication module 73 can use wired connection communication or wireless communication, which is not limited in this application.
[0059] The design of the online detection tooling for the inner ring raceway of the tapered roller bearing of this embodiment, through the realization of the above-mentioned structure and functions, not only improves the measurement efficiency, but also ensures the high accuracy and reliability of the measurement results, and meets the demand of the bearing manufacturing industry for high-precision measurement equipment.
[0060] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "set", "provided with", "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 directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. An online detection tool for the inner ring raceway of a tapered roller bearing, comprising: A measuring table (2) fixedly arranged above the base (1); A position limiting support mechanism (3) located on the measuring table (2); a sliding support component (4) fixedly arranged above the measuring table (2); and A measuring mechanism (5) connected to both ends of the measuring table (2); Features: The sliding support component (4) is provided with a linear groove (41) and an upper cover (42), wherein the upper cover (42) is arranged on the linear groove (41); at least one ball structure (43) is arranged in the linear groove (41), and the upper cover (42) is provided with at least one ball hole (421), wherein the ball hole (421) is arranged corresponding to the ball structure (43) and the diameter of the ball hole (421) is greater than the diameter of the ball structure (43).
2. The on-line detection tool for the inner ring raceway of a tapered roller bearing according to claim 1, characterized in that: The ball structure (43) comprises: at least one second ball (432) abutting against the lower end of the first ball (431); the lower end of the first ball (431) is located in a circular groove, and at least one second ball (432) is arranged in a circular shape at the bottom of the circular groove.
3. The on-line detection tool for the inner ring raceway of a tapered roller bearing according to claim 2, characterized in that: No less than three sliding support components (4) are arranged at equal intervals on the measuring table (2).
4. The on-line detection tool for the inner ring raceway of a tapered roller bearing according to claim 1, characterized in that: The measuring mechanism (5) comprises a first measuring point (51) arranged at the lower end of the measuring table (2), a second measuring point (52) arranged at the upper end of the measuring table, a first rolling track measuring instrument (53) connected to the first measuring point (51), and a second rolling track measuring instrument (54) connected to the second measuring point (52).
5. The on-line detection tool for the inner ring raceway of a tapered roller bearing according to claim 4, characterized in that: The first raceway measuring instrument (53) is used to measure at least one parameter of the raceway size and size deviation of the inner ring of the bearing to be measured; The second raceway measuring instrument (54) is used to measure at least one parameter of the cone angle deviation and perpendicularity of the inner ring of the bearing to be measured.
6. The on-line detection tool for the inner ring raceway of a tapered roller bearing according to claim 4, characterized in that: The second measuring point (52) is arranged on a second slideway (22) at the upper end of the measuring table (2); A second moving mechanism (220) for controlling the movement of the second measuring point (52) along the second slideway (22) is provided at the lower end of the second slideway (22).
7. The on-line detection tool for the inner ring raceway of a tapered roller bearing according to claim 6, characterized in that: The measuring table (2) is arranged on the base (1) in an inclined manner downward; The position-limiting support mechanism (3) comprises a fixed support rod (31) arranged at the lower end of the measuring table (2) and a movable support rod (32) arranged in a first slideway (21) at the left end of the measuring table (2); A first moving mechanism (210) for controlling the movable support rod (32) to move along the first slideway (21) is provided at the lower end of the first slideway (21).
8. The on-line detection tool for the inner ring raceway of a tapered roller bearing according to claim 7, characterized in that: The tapered roller bearing inner ring raceway online detection tool further comprises: a knob (6) arranged at the bottom of the measuring table (2); the knob (6) is used to fix the position of the first moving mechanism (210) and / or the second moving mechanism (220) in a tightened state; or In the untightened state, the first moving mechanism (210) is allowed to move along the first slideway (21) and / or the second moving mechanism (220) is allowed to move along the second slideway (22).
9. The on-line detection tool for the inner ring raceway of a tapered roller bearing according to claim 1, characterized in that: The tapered roller bearing inner ring raceway online detection tool further comprises: a host computer (7) connected to the measuring mechanism (5), the host computer (7) comprising a data acquisition module (71) for acquiring measurement data of the measuring mechanism (5), a display module (72) for displaying the measurement data, and a communication module (73) for transmitting the measurement data.