Drop detection device and method for cylindrical roller bearings

Abstract

This invention discloses a device and method for detecting the drop distance of a cylindrical roller bearing. The outer ring of the cylindrical roller bearing is assembled with the bearing cage. The drop distance is measured as the distance the cylindrical roller of the bearing falls freely from its position close to the outer ring due to its own weight. When measuring the drop distance, a non-contact, side-mounted optical displacement sensor is used to effectively detect the drop distance. An initial light beam is emitted from an optical infrared emission hole by an optical infrared generator in the optical sensor assembly. When the initial light beam illuminates the cylindrical roller of the bearing under test, a reflected light beam is generated. The displacement is calculated in real time by a displacement data processor, and then output through the roller displacement sensor data transmission line in the optical sensor assembly.

Description

Technical Field

[0001] This invention relates to a device and method for detecting the drop of cylindrical roller bearings. Background Technology

[0002] A cylindrical roller bearing disclosed in Chinese Invention Patent / Application No.: CN201510007073.8 includes: an inner ring; an outer ring; rollers; a cage; and a seal disposed at the axial ends of the outer and inner rings and used to seal the space between the outer and inner rings. The seal includes: a retainer fixed to the axial end of the outer ring; a retaining ring fixed relative to the inner ring and protruding outward in the axial direction of the cylindrical roller bearing; a rotor fixed relative to the retaining ring; a stator fixed relative to the retaining ring; and a bellows extending in the axial direction of the cylindrical roller bearing and disposed between the axially outer ends of the retaining ring and the retaining ring, used to press the stator or rotor so that the rotor and stator remain in contact with each other. The cylindrical roller bearing of this invention allows for a large axial displacement between its inner and outer rings while still maintaining the bearing's seal.

[0003] However, existing methods for detecting the drop weight of cylindrical roller bearings lack testing devices and methods, resulting in a lack of actual data to support the drop weight. Therefore, we propose an improvement to this problem, namely, a device and method for detecting the drop weight of cylindrical roller bearings. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a cylindrical roller bearing drop detection device, comprising a support column assembly on the outer side of a detection worktable. The support column assembly includes a first groove, a second groove, a third groove, a support column body, and a threaded hole. The first groove is fixedly connected to the outer surface of the detection worktable, the second groove is fixedly connected to the lower left of the first groove, and the third groove is fixedly connected to the lower right of the first groove. The support column body is clamped to the inner surface of the first groove. The threaded hole is fixedly connected to the outer surface of the detection worktable. A bearing roller assembly is provided on the outer side of the detection worktable, and an optical sensor assembly is provided on the side of the bearing roller assembly. An internal sensor assembly is provided on the inner side of the optical sensor assembly.

[0005] Furthermore, the support column has three sections, each located inside the first groove, the second groove, and the third groove.

[0006] Furthermore, the bearing roller assembly includes a cylindrical roller bearing inner ring, a bearing cage, a cylindrical roller of the bearing under test, a cylindrical roller bearing outer ring, and a cylindrical drop roller of the bearing under test. The outer surface of the cylindrical roller bearing inner ring is nested with the bearing cage, and the outer surface of the bearing cage is nested with the cylindrical roller bearing outer ring. The cylindrical roller of the bearing under test is provided on the inner surface of the bearing cage, and the cylindrical roller bearing outer ring is provided below the cylindrical roller of the bearing under test.

[0007] Furthermore, the outer ring of the cylindrical roller bearing is disposed on the central surface of the top of the three support columns, corresponding to the threaded hole.

[0008] Furthermore, the optical sensor assembly includes an optical infrared generator, a fixing bolt head, an optical infrared generating wire, an optical infrared emitting hole, and a roller displacement sensor data transmission line. The tail end of the optical infrared generator is embedded and connected to the fixing bolt head. The upper surface circuit of the optical infrared generator is connected to the optical infrared generating wire. The front end of the optical infrared generator is fixedly connected to the optical infrared emitting hole. The side surface circuit of the optical infrared generator is connected to the roller displacement sensor data transmission line.

[0009] Furthermore, the internal components of the sensor include a displacement data processor, a reflected beam, and an initial beam. The inner surface circuit of the optical infrared generator is connected to the displacement data processor. The reflected beam is located above the right side of the displacement data processor, and the initial beam is located below the right side of the displacement data processor.

[0010] Furthermore, the optical infrared generator is connected to the front end of the threaded hole via the fixing bolt head, and the light beam shines onto the cylindrical roller of the bearing under test and the falling cylindrical roller of the bearing under test.

[0011] A method for detecting the drop of a cylindrical roller bearing includes the following steps: Step 1: Assemble the outer ring of the cylindrical roller bearing and the bearing cage together;

[0012] Step 2: The drop measurement should be the distance the cylindrical roller of the bearing being tested falls freely from its position close to the outer ring due to its own weight.

[0013] Step 3: When measuring the drop of the cylindrical rollers in the bearing under test, it is important to use a non-contact side-mounted optical displacement sensor.

[0014] Step 4: The first groove, the second groove, and the third groove are used to install and fix the support column of the cylindrical roller bearing outer ring. The threaded hole is provided with threads to fix the optical sensor assembly for measurement.

[0015] Furthermore, in step three, the optical displacement sensor is equipped with an optical sensor assembly. The optical infrared generator in the optical sensor assembly emits an initial light beam from the optical infrared emission hole. When the initial light beam shines on the cylindrical roller of the bearing under test, it generates a reflected light beam. The displacement is then calculated in real time by the displacement data processor.

[0016] Furthermore, the displacement data processor calculates the displacement in real time and outputs the data through the roller displacement sensor data transmission line in the optical sensor assembly.

[0017] The beneficial effects of this invention are:

[0018] Assemble the outer ring of the cylindrical roller bearing with the bearing cage; the drop measurement should be the distance the cylindrical roller of the bearing under test falls freely from the position close to the outer ring due to its own weight; when measuring the drop of the cylindrical roller of the bearing under test, it should be noted that a non-contact side optical displacement sensor can be used to effectively detect the drop of the cylindrical roller bearing.

[0019] An initial light beam is emitted from the optical infrared emission hole by the optical infrared generator in the optical sensor assembly. When the initial light beam shines on the cylindrical roller of the bearing under test, it generates a reflected light beam. The displacement is then calculated in real time by the displacement data processor, and the data is output through the roller displacement sensor data transmission line in the optical sensor assembly. Attached Figure Description

[0020] Figure 1 This is the front view of the present invention;

[0021] Figure 2 This is a diagram of the groove structure of the present invention;

[0022] Figure 3 This is a diagram showing the internal structure of the optical sensor of the present invention;

[0023] Figure 4 This is a structural diagram of the support column assembly of the present invention;

[0024] Figure 5 This is a structural diagram of the optical sensor assembly of the present invention;

[0025] Figure 6 This is a rear structural diagram of the optical sensor assembly of the present invention. Detailed Implementation

[0026] Examples of the implementation of the cylindrical roller bearing drop detection device and method of the present invention are as follows: Figure 1-6As shown: A method for detecting the drop of a cylindrical roller bearing, step one: assembling the outer ring 304 of the cylindrical roller bearing and the bearing cage 302 together;

[0027] Step 2: The drop measurement should be the distance that the cylindrical roller 303 of the bearing under test falls freely from its position close to the outer ring due to its own weight.

[0028] Step 3: When measuring the drop of the cylindrical roller 303 of the bearing under test, it is important to use a non-contact side-mounted optical displacement sensor.

[0029] Step 4: The first groove 201, the second groove 202, and the third groove 203 are used to install and fix the support column 204 of the cylindrical roller bearing outer ring 304. The threaded hole 205 is provided with threads to fix the optical sensor assembly 4 for measurement.

[0030] In step three, the optical displacement sensor is equipped with an optical sensor assembly 4. The optical infrared generator 401 in the optical sensor assembly 4 emits an initial beam 503 from the optical infrared emission hole 404. When the initial beam 503 shines on the cylindrical roller 303 of the bearing being measured, a reflected beam 502 is generated. The displacement is calculated in real time by the displacement data processor 501. After the displacement data processor 501 calculates the displacement in real time, the data is output through the roller displacement sensor data transmission line 405 in the optical sensor assembly 4.

[0031] A cylindrical roller bearing drop detection device includes a detection worktable 1 with a support column assembly 2 on its outer side. The support column assembly 2 includes a first groove 201, a second groove 202, a third groove 203, a support column body 204, and a threaded hole 205. The first groove 201 is fixedly connected to the outer surface of the detection worktable 1, the second groove 202 is fixedly connected to the lower left of the first groove 201, and the third groove 203 is fixedly connected to the lower right of the first groove 201. The support column body 204 is clamped to the inner surface of the first groove 201. The threaded hole 205 is fixedly connected to the outer surface of the detection worktable 1. A bearing roller assembly 3 is provided on the outer side of the detection worktable 1. An optical sensor assembly 4 is provided on the side of the bearing roller assembly 3. An internal sensor assembly 5 is provided on the inner side of the optical sensor assembly 4. The support column... The column 204 has three grooves, each located inside the first groove 201, the second groove 202, and the third groove 203. The bearing roller assembly 3 includes a cylindrical roller bearing inner ring 301, a bearing cage 302, a tested bearing cylindrical roller 303, a cylindrical roller bearing outer ring 304, and a tested bearing cylindrical drop roller 305. The outer surface of the cylindrical roller bearing inner ring 301 is nested with the bearing cage 302, and the outer surface of the bearing cage 302 is nested with the cylindrical roller bearing outer ring 304. The inner surface of the bearing cage 302 is provided with the tested bearing cylindrical roller 303, and the tested bearing cylindrical roller 304 is located below the tested bearing cylindrical roller 303. The cylindrical roller bearing outer ring 304 is located at the center of the top of the three support columns 204, and its surface corresponds to the threaded hole 205.

[0032] See Figures 1-6 The optical sensor assembly 4 includes an optical infrared generator 401, a fixing bolt head 402, an optical infrared generating wire 403, an optical infrared emitting aperture 404, and a roller displacement sensor data transmission line 405. The fixing bolt head 402 is embedded and connected to the tail end of the optical infrared generator 401. The upper surface of the optical infrared generator 401 is connected to the optical infrared generating wire 403. The front end of the optical infrared generator 401 is fixedly connected to the optical infrared emitting aperture 404. The side surface of the optical infrared generator 401 is connected to the roller displacement sensor data transmission line 405. The internal sensor assembly 5 includes a displacement data processor 501 and a reflected beam 50. 2. The initial beam 503 and the inner surface circuit of the optical infrared generator 401 are connected to the displacement data processor 501. The upper right side of the displacement data processor 501 is provided with a reflected beam 502, and the lower right side of the displacement data processor 501 is provided with an initial beam 503. The optical infrared generator 401 is connected to the front end of the threaded hole 205 through the fixing bolt head 402. It is connected to the cylindrical roller 303 and the falling cylindrical roller 305 of the bearing under test by light illumination. The optical infrared generator 401 is connected to the front end of the threaded hole 205 through the fixing bolt head 402 and the beam shines on the cylindrical roller 303 and the falling cylindrical roller 305 of the bearing under test.

[0033] The working principle of this invention is as follows: In the process of using this invention, step one is to assemble the cylindrical roller bearing outer ring 304 and the bearing cage 302 assembly together; step two is to measure the drop distance, which is the distance the cylindrical roller 303 of the bearing being tested falls freely from its position close to the outer ring due to its own weight; step three is to use a non-contact side-mounted optical displacement sensor when measuring the drop distance of the cylindrical roller 303; step four is to install and fix the support column 204 of the cylindrical roller bearing outer ring 304 in the first groove 201, the second groove 202, and the third groove 203, and to fix the optical sensor assembly 4 in the threaded hole 205 for measurement. In step three, the optical displacement sensor is equipped with an optical sensor assembly 4. The optical infrared generator 401 in the optical sensor assembly 4 emits an initial beam 503 from the optical infrared emission hole 404. When the initial beam 503 shines on the cylindrical roller 303 of the bearing being measured, a reflected beam 502 is generated. The displacement is calculated in real time by the displacement data processor 501. After the displacement data processor 501 calculates the displacement in real time, the data is output through the roller displacement sensor data transmission line 405 in the optical sensor assembly 4.

[0034] The above embodiments are merely preferred embodiments of the cylindrical roller bearing drop detection device and method of the present invention. Ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are included within the protection scope of the present invention.

Claims

1. A cylindrical roller bearing drop quantity detection device comprising a detection workbench, characterized by, The outer side of the detection workbench is provided with a support column assembly, the support column assembly comprises a first groove, a second groove, a third groove, a support column body, a threaded hole, the outer surface of the detection workbench is fixedly connected with the first groove, the lower left of the first groove is fixedly connected with the second groove, the lower right of the first groove is fixedly connected with the third groove, the inner surface of the first groove is clamped with the support column body, the outer surface of the detection workbench is fixedly connected with the threaded hole, the outer side of the detection workbench is provided with a bearing roller assembly, the side of the bearing roller assembly is provided with an optical sensor assembly, the inner side of the optical sensor assembly is provided with a sensor internal assembly; The support column body is provided with three, which are respectively arranged on the inner side of the first groove, the second groove and the third groove; The bearing roller assembly comprises a cylindrical roller bearing inner ring, a bearing retainer, a measured bearing cylindrical roller, a cylindrical roller bearing outer ring and a measured bearing cylindrical falling roller, the outer surface of the cylindrical roller bearing inner ring is nested with the bearing retainer, the outer surface of the bearing retainer is nested with the cylindrical roller bearing outer ring, the inner surface of the bearing retainer is provided with the measured bearing cylindrical roller, and the measured bearing cylindrical roller is provided below the cylindrical roller bearing outer ring; The cylindrical roller bearing outer ring is arranged at the center of the top of the three support column bodies and corresponds to the threaded hole in surface; The optical sensor assembly comprises an optical infrared generator, a fixed bolt head, an optical infrared generating wire, an optical infrared emission hole and a roller displacement sensor data transmission line, the tail end of the optical infrared generator is embeddedly connected with the fixed bolt head, the upper surface circuit of the optical infrared generator is connected with the optical infrared generating wire, the front end of the optical infrared generator is fixedly connected with the optical infrared emission hole, and the side surface circuit of the optical infrared generator is connected with the roller displacement sensor data transmission line; The sensor internal assembly comprises a displacement data processor, a reflected light beam and an initial light beam, the inner surface circuit of the optical infrared generator is connected with the displacement data processor, the right side of the displacement data processor is irradiated with the reflected light beam, and the right side of the displacement data processor is irradiated with the initial light beam; The optical infrared generator is connected with the front end of the threaded hole through the fixed bolt head, and the light beam irradiates on the measured bearing cylindrical roller and the measured bearing cylindrical falling roller.

2. A cylindrical roller bearing drop-out amount detection method characterized by, The cylindrical roller bearing drop amount detection device of claim 1 is realized, comprising the following steps: Step one, assemble the cylindrical roller bearing outer ring with the bearing retainer together; Step two, the measurement of drop amount should be the distance of the measured bearing cylindrical roller from the position close to the outer ring to the free falling position caused by its own gravity; Step three, when measuring the drop amount of the measured bearing cylindrical roller, a non-contact side optical displacement sensor should be used; Step four, the first groove, the second groove and the third groove are used to install and fix the support column body of the cylindrical roller bearing outer ring, and the threaded hole is provided with a thread for fixing the optical sensor assembly for measurement.

3. The cylindrical roller bearing drop quantity detection method according to claim 2, characterized in that, The optical displacement sensor in the third step is provided with an optical sensor assembly. An initial light beam is emitted from an optical infrared emitter hole in the optical sensor assembly. When the initial light beam irradiates the bearing cylindrical roller to be measured, a reflected light beam is generated. The displacement amount is calculated in real time by a displacement data processor.

4. The cylindrical roller bearing drop-out amount detection method according to claim 3, characterized by, After the displacement data processor calculates the displacement amount in real time, the data is output through the roller displacement sensor data transmission line in the optical sensor assembly.

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