Dynamic measuring device for heights of inner and outer rings of roller bearing

Abstract

The utility model relates to the technical field of detection devices, in particular to a roller bearing inner and outer ring height dynamic measurement device which comprises a base, a supporting frame fixedly installed at the upper end of the base, a three-jaw chuck fixedly installed at the upper end of the base and comprises clamping jaws, a positioning step face is arranged on the outer sides of the clamping jaws, and a range finder is fixedly installed on the supporting frame. The distance measuring instrument comprises at least two distance measuring sensors installed in a sliding mode, a driving frame is rotatably installed on the base, a driving wheel is rotatably installed on the driving frame, the driving wheel is connected with a driving motor, a speed measuring sensor is installed on the base, and the distance measuring instrument is further provided with a control module used for controlling the sensors and the driving motor. The control module records real-time data of the distance measuring sensor. By arranging the three-jaw chuck and the driving wheel, the bearing outer ring is in a moving state, the height of the bearing outer ring is conveniently and dynamically measured, and the height difference change condition of the bearing in a working state is better reflected.

Description

Technical Field

[0001] This application relates to the technical field of measuring devices, and in particular to a dynamic measuring device for the height of the inner and outer rings of a roller bearing. Background Technology

[0002] Roller bearings are a common type of bearing. They typically consist of an outer ring and an inner ring, with an array of rollers positioned between them and a cage to hold the rollers in place. In some high-precision equipment, the height difference between the inner and outer rings of the roller bearing needs to be measured.

[0003] However, existing measurements can only measure the height of the inner and outer rings of the bearing under static conditions, reflecting the height difference between the inner and outer rings, but cannot accurately reflect the changes in the inner and outer rings of the bearing under working conditions. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this application is to provide a measuring device that can dynamically detect the height of the inner and outer rings of a bearing.

[0005] The above-mentioned objective of this application is achieved through the following technical solution:

[0006] A dynamic measuring device for the height of the inner and outer rings of a roller bearing, comprising:

[0007] A base, wherein a support frame is fixedly installed on the upper end of the base;

[0008] A three-jaw chuck, the three-jaw chuck being fixedly installed on the upper end of the base, the three-jaw chuck comprising three jaws;

[0009] The positioning step surface is formed by the outer side of the claw being concave near the upper end, and the bottom of the concave surface is a plane. The three positioning step surfaces are on the same plane.

[0010] A rangefinder, which is fixedly mounted on the support frame, includes at least two slidingly mounted distance sensors, which are respectively positioned facing the inner and outer ring end faces of the bearing when in use;

[0011] A drive frame, which is rotatably mounted on the base;

[0012] A drive wheel is rotatably mounted on the drive frame and connected to a drive motor.

[0013] A speed sensor, wherein the speed sensor is mounted on the base;

[0014] The control module is used to control the sensor and the drive motor, and the control module records the real-time data of the ranging sensor.

[0015] Optionally, the upper surface of the three-jaw chuck is provided with at least three T-slots arranged radially in a circumferential array. A mounting block is slidably installed in the T-slot, and a threaded rod is rotatably installed on the upper end of the mounting block. The threaded rod is threadedly connected to a pressing block, and a force sensor is fixedly installed on the pressing block.

[0016] Optionally, a ball bearing is fixedly installed on the lower side of the pressure block near the bearing.

[0017] Optionally, two translation components are fixedly installed on the upper end of the support frame, the translation components including:

[0018] Mounting bracket, which is fixedly mounted on the upper end of the support frame;

[0019] An adjusting screw, which is rotatably mounted on the support frame;

[0020] A sliding block is slidably mounted on the mounting bracket, the sliding block is threadedly connected to an adjusting screw, and the ranging sensor is fixedly mounted on the sliding block.

[0021] Optionally, the base is threadedly connected to an adjusting screw, the end of which abuts against the drive frame.

[0022] Optionally, the support frame is a portal frame, and the mounting bracket is arranged along the upper lower side of the support frame.

[0023] Optionally, a rubber ring is provided on the outer side of the drive wheel.

[0024] In summary, this application includes the following beneficial technical effects: A three-jaw chuck and a drive wheel are installed on the base. The three-jaw chuck clamps the inner ring of the bearing, and the drive wheel drives the outer ring of the bearing, causing the bearing to rotate. A distance sensor is installed on the support frame to record the height changes of the outer ring of the bearing in real time. By setting the three-jaw chuck and drive wheel, the outer ring of the bearing is kept in motion, which facilitates dynamic measurement of the height of the outer ring and better reflects the height difference changes of the bearing under working conditions. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0026] Reference numerals: 1. Base; 11. Support frame; 2. Three-jaw chuck; 21. Jaw; 22. Positioning step; 3. Rangefinder; 31. Range sensor; 32. Translation assembly; 321. Mounting bracket; 322. Adjustment screw; 323. Sliding block; 41. Drive frame; 42. Drive wheel; 43. Speed ​​sensor; 44. Adjustment screw; 51. T-slot; 52. Mounting block; 53. Threaded rod; 54. Pressing block. Detailed Implementation

[0027] The present application will be further described in detail below with reference to the accompanying drawings.

[0028] Please see Figure 1 This application discloses a dynamic measuring device for the height of the inner and outer rings of a roller bearing. It includes a base 1, a support frame 11 fixedly mounted on the upper end of the base 1, and a three-jaw chuck 2 fixedly mounted on the upper end of the base 1. The three-jaw chuck 2 includes three jaws 21, with the outer side of each jaw 21 recessed near its upper end. The bottom of the recess is flat, forming a positioning step surface 22. The three positioning steps 22 are on the same plane. A rangefinder 3 is fixedly mounted on the support frame 11. The rangefinder 3 includes at least two slidingly mounted distance sensors 31, which are positioned directly opposite the inner and outer ring end faces of the bearing when in use. A drive frame 41 is rotatably mounted on the base 1, and a drive wheel 42 is rotatably mounted on the drive frame 41. The drive wheel 42 is connected to a drive motor. A speed sensor 43 is mounted on the base 1. A control module is also provided, which controls the sensors and the drive motor, and records real-time data from the distance sensors 31.

[0029] Specifically, a three-jaw chuck 2 and a drive wheel 42 are installed on the base 1. The three-jaw chuck 2 clamps the inner ring of the bearing, and the drive wheel 42 drives the outer ring of the bearing to rotate. A distance sensor 31 is installed on the support frame 11 to record the height changes of the outer ring of the bearing in real time.

[0030] In this way, by setting the three-jaw chuck 2 and the drive wheel 42, the outer ring of the bearing is in motion, which facilitates dynamic measurement of the height of the outer ring of the bearing and better reflects the change in the height difference of the bearing under working conditions.

[0031] In some feasible methods, the base 1 is a rectangular plate, and the three-jaw chuck 2 is existing technology and will not be described in detail. The outer side of the chuck 21 is concave near the upper end, so that a positioning step surface 22 is generated on the outer side of the chuck 21 for placing the bearing, so that the inner ring of the bearing is placed on a plane. During the dynamic detection process, the three-jaw chuck 2 maintains pressure outward to fix the inner ring of the bearing. The inner ring of the bearing is stationary and does not change. The outer ring of the bearing is detected in real time. The concave side that fits the inner side of the bearing can be set as an arc surface.

[0032] The ranging sensor 31 can be an infrared ranging sensor. The ranging sensor 31 is slidably mounted, allowing it to adapt to the detection of bearings of different specifications. The drive frame 41 is rectangular. After the bearing is installed, the drive frame 41 rotates until the drive wheel 42 is in contact with the outer ring of the bearing. Friction drives the outer ring to rotate. To facilitate driving, a rubber ring is provided on the outside of the drive wheel 42 to increase friction. The speed sensor 43 can be a reflective photoelectric sensor. By setting corresponding marking points on the outer ring of the bearing, the speed is detected, facilitating feedback control of the drive wheel 42's drive motor speed. The control module is a microcontroller control module. It controls the drive motor and the sensor, recording the sensor data in real time and controlling the drive motor's motion status.

[0033] As a specific embodiment of the dynamic measuring device for the inner and outer ring height of a roller bearing provided in the application, the upper end face of the three-jaw chuck 2 has at least three T-slots 51 radially arranged in a circumferential array. A mounting block 52 is slidably installed in the T-slots 51. A threaded rod 53 is rotatably installed on the upper end of the mounting block 52. A pressure block 54 is threadedly connected to the threaded rod 53. A force sensor is fixedly installed on the pressure block 54.

[0034] Overall, by setting the pressure block 54 and the force sensor, a downward pressure is applied to the outer ring of the bearing, allowing the bearing to simulate the axial load condition under operating conditions.

[0035] Furthermore, a ball bearing is fixedly installed on the lower side of the pressure block 54 near the bearing.

[0036] It is understood that by using ball bearings, the outer ring of the bearing can be made to move under load.

[0037] In some feasible embodiments, the mounting block 52 is a T-block that fits into the T-slot 51, and a force sensor is installed between the pressing block 54 and the ball bearing so that the force sensor measures the downward force of the pressing block 54.

[0038] As another specific embodiment of the dynamic measuring device for the inner and outer ring height of a roller bearing provided in the application, two translation components 32 are fixedly installed on the upper end of the support frame 11. The translation component 32 includes a mounting frame 321, an adjusting screw 322, and a sliding block 323. The mounting frame 321 is fixedly installed on the upper end of the support frame 11, the adjusting screw 322 is rotatably installed on the support frame 11, and the sliding block 323 is slidably installed on the mounting frame 321. The sliding block 323 is threadedly connected to the adjusting screw 322, and the distance sensor 31 is fixedly installed on the sliding block 323.

[0039] It should be understood that by setting the adjustment screw 322, the position of the ranging sensor 31 can be easily adjusted.

[0040] Furthermore, the support frame 11 is a portal frame, and the mounting bracket 321 is arranged along the upper lower side of the support frame 11.

[0041] It should be understood that by setting up the portal frame, the support frame 11 is more stable, and the installation and arrangement of the adjustment screw 322 part is also convenient.

[0042] In some feasible ways, the support frame 11 and the mounting frame 321 are integrated, and a rectangular sliding hole is provided at the upper end of the support frame 11, in which the sliding block 323 can be slidably installed.

[0043] As another specific embodiment of the dynamic measuring device for the inner and outer ring height of a roller bearing provided in the application, the base 1 is threadedly connected to an adjusting screw 44, the end of which abuts against the drive frame 41.

[0044] It should be understood that by adjusting the screw 44, pressure is applied to the drive frame 41, which facilitates the drive wheel 42 driving the bearing.

[0045] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dynamic measuring device for the height of the inner and outer rings of a roller bearing, characterized in that, include: A base (1) is provided, and a support frame (11) is fixedly installed on the upper end of the base (1); A three-jaw chuck (2) is fixedly installed on the upper end of the base (1). The three-jaw chuck (2) includes three jaws (21). The positioning step surface (22) is recessed on the outer side of the claw (21) near the upper end, and the bottom of the recess is a plane, forming the positioning step surface (22). The three positioning step surfaces (22) are on the same plane. The rangefinder (3) is fixedly installed on the support frame (11). The rangefinder (3) includes at least two slidingly mounted distance sensors (31). When in use, the distance sensors (31) are respectively facing the inner and outer ring end faces of the bearing. A drive frame (41) is rotatably mounted on the base (1); A drive wheel (42) is rotatably mounted on the drive frame (41), and the drive wheel (42) is connected to a drive motor; Speed ​​sensor (43), the speed sensor (43) is mounted on the base (1); The control module is used to control the sensor and the drive motor, and the control module records the real-time data of the ranging sensor (31).

2. The dynamic measuring device for the inner and outer ring height of a roller bearing according to claim 1, characterized in that: The upper surface of the three-jaw chuck (2) has at least three T-slots (51) arranged radially in a circular array. A mounting block (52) is slidably installed in the T-slot (51). A threaded rod (53) is rotatably installed on the upper end of the mounting block (52). The threaded rod (53) is threadedly connected to a pressing block (54). A force sensor is fixedly installed on the pressing block (54).

3. The dynamic measuring device for the inner and outer ring height of a roller bearing according to claim 2, characterized in that: The lower pressure block (54) is fixedly mounted with a ball bearing near the lower side of the bearing.

4. The dynamic measuring device for the inner and outer ring height of a roller bearing according to claim 1, characterized in that: Two translation components (32) are fixedly installed on the upper end of the support frame (11), and the translation components (32) include: Mounting bracket (321), which is fixedly mounted on the upper end of the support frame (11); Adjustment screw (322), which is rotatably mounted on the support frame (11); A sliding block (323) is slidably mounted on the mounting bracket (321). The sliding block (323) is threadedly connected to the adjusting screw (322). The ranging sensor (31) is fixedly mounted on the sliding block (323).

5. The dynamic measuring device for the inner and outer ring height of a roller bearing according to claim 1, characterized in that: The base (1) is threadedly connected to an adjusting screw (44), the end of which abuts against the drive frame (41).

6. The dynamic measuring device for the inner and outer ring height of a roller bearing according to claim 4, characterized in that: The support frame (11) is a portal frame, and the mounting bracket (321) is arranged along the upper lower side of the support frame (11).

7. The dynamic measuring device for the inner and outer ring height of a roller bearing according to claim 1, characterized in that: A rubber ring is provided on the outside of the drive wheel (42).

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