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CN-121994482-A - Rolling bearing testing device and rolling bearing testing system

CN121994482ACN 121994482 ACN121994482 ACN 121994482ACN-121994482-A

Abstract

The invention relates to a rolling bearing testing device (1), the rolling bearing testing device (1) comprises a shell (2), a rotating shaft (3) is arranged in the shell (2), the rotating shaft (3) is supported in the shell (2) through a first rolling bearing (41) and a second rolling bearing (42), the rolling bearing testing device (1) further comprises a first connecting device (51) and a second connecting device (52), one part of the first connecting device (51) is fixedly connected with respect to an outer ring of the first rolling bearing (41) and the other part of the first connecting device extends out through a first opening in the shell (2), one part of the second connecting device (52) is fixedly connected with respect to an outer ring of the second rolling bearing (42) and the other part of the second connecting device extends out through a second opening in the shell (2). The invention also relates to a rolling bearing testing system.

Inventors

  • WU DIQUAN
  • LI XINGZHENG

Assignees

  • 斯凯孚公司

Dates

Publication Date
20260508
Application Date
20241108

Claims (10)

  1. 1. Rolling bearing testing device (1), characterized in that the rolling bearing testing device (1) comprises a housing (2), in which housing (2) a rotation shaft (3) is arranged, which rotation shaft (3) is supported in the housing (2) by means of a first rolling bearing (41) and a second rolling bearing (42), the rolling bearing testing device (1) further comprises a first connection means (51) and a second connection means (52), a part of the first connection means (51) being fixedly connected with respect to an outer ring of the first rolling bearing (41) and the other part protruding through a first opening in the housing (2), a part of the second connection means (52) being fixedly connected with respect to an outer ring of the second rolling bearing (42) and the other part protruding through a second opening in the housing (2), the parts of the first connection means (51) and the second connection means (52) protruding outside the housing (2) being connected with a detection means (6), wherein the detection means (6) are arranged to detect a deflection of the parts of the first connection means (51) and/or the second connection means (52) outside the housing (2).
  2. 2. Rolling bearing testing device (1) according to claim 1, characterized in that two detection means (6) are provided, which are connected to the parts of the first connection means (51) and the second connection means (52) protruding from the housing (2) and are arranged for detecting a deflection of the parts of the first connection means (51) protruding from the housing (2) and for detecting a deflection of the parts of the second connection means (52) protruding from the housing (2), respectively.
  3. 3. Rolling bearing testing device (1) according to claim 1, characterized in that the first connection means (51) and the part of the second connection means (52) protruding out of the housing (2) are connected to each other by means of a common detection means (6).
  4. 4. A rolling bearing testing device (1) according to claim 2 or 3, characterized in that the detection means (6) comprise a force application unit and an offset recognition unit.
  5. 5. Rolling bearing testing device (1) according to claim 4, characterized in that the force application unit applies a force to the first connection means (51) and/or the second connection means (52) by means of the connection of the detection means (6) to the first connection means (51) and/or the second connection means (52), the deflection identification unit being arranged for identifying a deflection of the portion of the first connection means (51) and/or the second connection means (52) extending out of the housing (2) caused by said force.
  6. 6. Rolling bearing testing device (1) according to claim 5, characterized in that the offset recognition unit is designed as an electromechanical sensor.
  7. 7. Rolling bearing testing device (1) according to claim 6, characterized in that the force application unit is designed as a first tension spring (61) and a second tension spring (62), the deflection recognition unit is designed as a tension sensor (63), wherein the tension sensor (63) is connected between one end of the first tension spring (61) and one end of the second tension spring (62), the respective other end of the first tension spring (61) and the second tension spring (62) being connected with the portion of the first connection means (51) and the second connection means (52) protruding out of the housing (2), respectively.
  8. 8. Rolling bearing testing device (1) according to claim 5, characterized in that the offset recognition unit is designed as an image sensor.
  9. 9. Rolling bearing testing device (1) according to claim 8, characterized in that the image sensor continuously records images of the parts of the first connection means (51) and/or the second connection means (52) protruding from the housing (2) and identifies the offset by comparing said images with the original images of the parts of the first connection means (51) and/or the second connection means (52) protruding from the housing (2), respectively.
  10. 10. Rolling bearing testing system, characterized in that it comprises a rolling bearing testing device (1) according to one of the preceding claims and a control device, wherein the control device is arranged to automatically stop the operation of the rolling bearing testing device (1) when the detection device (6) detects that the deviation of the portion of the first connection device (51) and/or the second connection device (52) outside the housing (2) exceeds a preset threshold value.

Description

Rolling bearing testing device and rolling bearing testing system Technical Field The present invention relates to a rolling bearing testing device and a rolling bearing testing system. Background Bearings, particularly rolling bearings used in agricultural machinery, require life testing. These bearings are often subjected to extremely harsh conditions in practical use, such as a slurry environment, particularly those containing fertilizers. Therefore, when the service life test is performed, it is very important to simulate the real use environment as much as possible, so that the test result can be ensured to reflect the actual use condition more accurately, thereby improving the reliability. In general, this actual environment of use is simulated in a test chamber during such a service life test, that is to say in which chemical fertilizers which are usual in agricultural production are mixed with the mud, and then the bearing to be tested is arranged in the test chamber for starting the test. These test chambers are usually designed as closed systems to avoid contamination of the external environment. After the test has started, the bearings continue to run in the test chamber until they fail due to wear. During which time the staff may periodically observe and record the test situation. In this service life test, the data cannot be detected by the sensor as in other typical bearing tests, since on the one hand the mud in the simulated environment influences the accuracy of the detection by the sensor and the chemical components in the mud can also corrode the sensor, and on the other hand vibrations during the test process can also lead to possible distortions in the data detected by the sensor in the test chamber. Since such tests usually take a long time around the clock, if the bearing fails in an unattended night, it may not be found and recorded until the next working day, which results in inaccuracy of the test results, while the whole test device is still in operation during this period, which also results in a great waste of energy and an increase of the test costs. Disclosure of Invention Starting from the prior art mentioned above, the object of the present invention is therefore to provide a bearing, in particular a rolling bearing testing device and a rolling bearing testing system, which at least partially overcome the above-mentioned disadvantages of the prior art. The above-mentioned problems are first solved by a rolling bearing testing device according to the invention, comprising a housing in which a rotation shaft is arranged, the rotation shaft being supported in the housing by a first rolling bearing and a second rolling bearing, the rolling bearing testing device further comprising a first connection means and a second connection means, a part of the first connection means being fixedly connected with respect to an outer ring of the first rolling bearing and the other part protruding through a first opening in the housing, a part of the second connection means being fixedly connected with respect to an outer ring of the second rolling bearing and the other part protruding through a second opening in the housing, the parts of the first connection means and the second connection means protruding out of the housing being connected with a detection means outside the housing, wherein the detection means are arranged to detect a deflection of the parts of the first connection means and/or the second connection means outside the housing. The bearing, in particular the rolling bearing testing device, comprises a housing, whereby a real use environment can be simulated in the housing, in particular in the case of farm machinery, which is usual in agricultural production, for example a dry, moist, very dusty, and in particular if necessary a slurry environment doped with fertilizer. Such use environments are often highly contaminated, so that contamination of the outside of the housing can be avoided by confining them within the housing. In the testing of bearings, rotating shafts are often used, which are supported by the bearings to be tested. A drive device is arranged outside the housing and is connected with a rotating shaft arranged in the housing through a transmission device. The bearing is tested by the rotation of the rotating shaft driven by the driving device, during which test data are recorded and analyzed in order to optimize the design of the bearing. Usually, two bearings to be tested are used directly to support the rotating shaft, although more or fewer bearings to be tested may be used in order to achieve the corresponding test purposes. According to the invention, the rolling bearing testing device further comprises connecting means, in particular a first connecting means and a second connecting means, a part of the first connecting means being fixedly connected with respect to the outer ring of the first rolling bearing and the other part protruding through a first op