CN111780973A - Device and method for testing full-period service life of rolling bearing - Google Patents
Device and method for testing full-period service life of rolling bearing Download PDFInfo
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- CN111780973A CN111780973A CN202010820838.0A CN202010820838A CN111780973A CN 111780973 A CN111780973 A CN 111780973A CN 202010820838 A CN202010820838 A CN 202010820838A CN 111780973 A CN111780973 A CN 111780973A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
- G01M13/045—Acoustic or vibration analysis
Abstract
The invention discloses a device and a method for testing the full-cycle life of a rolling bearing, wherein the device comprises: the device comprises a driving mechanism, a bearing testing mechanism and an information acquisition mechanism; the bearing to be detected is arranged in the bearing testing mechanism, the driving mechanism is connected with the bearing testing mechanism to provide driving force for the bearing to be detected, and the information acquisition mechanism is arranged on the bearing testing mechanism to acquire the testing information of the bearing to be detected; bearing bears accredited testing organization includes: the bearing to be detected is arranged in the test bearing seat, the radial pressurizer is arranged on the side of the test bearing seat to apply radial pressure to the test bearing seat, and the rotating shaft is horizontally arranged. The device solves the problems that in the prior art, the detection precision of the rolling bearing service life detection device is poor, and the detected data and the real data have certain difference to influence the work planning of the rolling bearing.
Description
Technical Field
The invention relates to the technical field of rolling bearing detection, in particular to a device and a method for testing the full-period service life of a rolling bearing.
Background
The rolling bearing is a precise mechanical element for reducing friction loss in mechanical equipment, and 70% of large-scale mechanical structures are damaged related to bearing damage, so that the research on the residual service life of the rolling bearing is beneficial to making reasonable fault maintenance measures for the mechanical equipment in advance, and accidents and loss caused by bearing faults are greatly reduced. Therefore, the research on the life of the rolling bearing is an important direction for many scholars to research.
In the prior art, the detection precision of the rolling bearing service life detection device is poor, and the detected data and the real data have certain difference, so that the working planning of the rolling bearing is influenced.
Therefore, the invention provides a rolling bearing full-period life testing device and method which can simulate the working condition of a rolling bearing more truly in the using process, so that the tested data is closer to the real testing data of the working condition, the signals of the rolling bearing full period can be observed more comprehensively, and the signals can be conveniently acquired and analyzed, so that the detection precision and the working efficiency are improved.
Disclosure of Invention
Aiming at the technical problems, the invention aims to solve the problems that the detection precision of a rolling bearing service life detection device is poor, the detected data and the real data have certain difference and the work planning of the rolling bearing is influenced in the prior art, thereby providing a rolling bearing full-period service life testing device and method which can simulate the working condition of the rolling bearing more really in the use process, enable the tested data to be closer to the real test data of the working condition, can observe signals of the rolling bearing full period more comprehensively, facilitate the acquisition and analysis of all the signals and improve the detection precision and the working efficiency.
In order to achieve the above object, the present invention provides a full-cycle life testing device for a rolling bearing, the device comprising: the device comprises a driving mechanism, a bearing testing mechanism and an information acquisition mechanism; the bearing to be detected is arranged in the bearing testing mechanism, the driving mechanism is connected with the bearing testing mechanism to provide driving force for the bearing to be detected, and the information acquisition mechanism is arranged on the bearing testing mechanism to acquire the testing information of the bearing to be detected; wherein the content of the first and second substances,
bearing bears accredited testing organization includes: the bearing to be detected is arranged in the test bearing seat, the radial pressurizer is arranged on the side of the test bearing seat to apply radial pressure to the test bearing seat, the rotating shaft is horizontally arranged, one end of the rotating shaft is connected with the driving mechanism, and the other end of the rotating shaft is connected with the bearing to be detected;
the information acquisition mechanism includes: temperature sensors, pressure sensors and acceleration sensors.
Preferably, the bearing load test mechanism further comprises: the first accompanying bearing seat and the second accompanying bearing seat are arranged on the bearing frame; the first bearing seat for accompanying measurement is arranged at one end of the rotating shaft close to the driving mechanism; the second accompanying test bearing seat is arranged at one end, close to the test bearing seat, of the rotating shaft.
Preferably, the drive mechanism comprises: a servo motor and a coupling;
and the output end of the servo motor is connected with the end part of the rotating shaft through the coupler.
Preferably, the radial presser comprises: the oil cylinder comprises a driving motor, an oil tank, an oil cylinder shaft and an oil pipe;
the oil tank passes through oil pipe with the hydro-cylinder is linked together, driving motor with the oil tank links to each other, be used for with the fluid drive of oil tank extremely in the hydro-cylinder, the radial direction of hydro-cylinder axle orientation test bearing frame on the hydro-cylinder, just the hydro-cylinder axle can stretch out and draw back in order to lean on the side of test bearing frame.
Preferably, the apparatus further comprises: a base; the driving mechanism and the bearing testing mechanism are respectively fixed on the upper surface of the base.
Preferably, the lower surface of the base is provided with a non-slip mat.
The invention also provides a method for testing the full-cycle life of the rolling bearing, which comprises the following steps:
mounting a bearing to be detected on the test bearing seat;
applying a radial force to the bearing to be detected by using a radial pressurizer;
driving the bearing to be detected to rotate by using a servo motor;
collecting the test information of the bearing to be detected through the information collecting mechanism;
preferably, the acquiring, by the information acquisition mechanism, the test information of the bearing to be detected includes:
detecting the temperature of the bearing to be detected by using the temperature sensor;
collecting vibration signals of a bearing to be detected by using the acceleration sensor;
and acquiring the friction torque after the bearing to be detected is subjected to pressure bearing and rotates by using the pressure sensor.
According to the technical scheme, the rolling bearing full-period life testing device provided by the invention has the beneficial effects that: the bearing to be detected is supported by the test bearing seat, and then the test bearing seat is pressurized by a radial pressurizer, so that a radial force can be applied to the test bearing seat, thereby leading the bearing to be detected to reach the service life limit in a short time, powerfully saving the time cost of researchers, then the driving mechanism drives the bearing to be detected to rotate, and the information acquisition mechanism is utilized to effectively detect and acquire the temperature, vibration signals and friction torque information of the bearing to be detected during working, thereby providing data support of the whole service cycle for the service life research of the rolling bearing and effectively researching the service life, therefore, the residual service life of the bearing is judged, and powerful data support is provided for the mechanical equipment using the rolling bearing to make reasonable fault maintenance measures in advance.
Additional features and advantages of the invention will be set forth in the detailed description which follows; and the parts not involved in the invention are the same as or can be realized by the prior art.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a rolling bearing full-cycle life testing device provided in a preferred embodiment of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is a side view of a rolling bearing full-cycle life testing apparatus provided in a preferred embodiment of the present invention;
fig. 4 is a side sectional view of a full-cycle life testing device of a rolling bearing provided in a preferred embodiment of the present invention;
FIG. 5 is a schematic view of the construction of a radial presser provided in a preferred embodiment of the present invention;
FIG. 6 is an assembly view of a test bearing seat and radial pressurizer provided in a preferred embodiment of the present invention;
FIG. 7 is a flow chart of a method for testing the full-cycle life of a rolling bearing provided in a preferred embodiment of the present invention;
fig. 8 is a flow chart of information collection provided in a preferred embodiment of the present invention.
Description of the reference numerals
1 base 2 servo motor
3 bearing seat is tested to 4 first company of shaft coupling
5 rotating shaft 6 second bearing seat for accompanying measurement
7 temperature sensor 8 test bearing seat
9 radial pressurizer 10 acceleration sensor
11 pressure sensor 12 anti-skid pad
13 bearing 901 driving motor to be detected
902 oil tank 903 oil cylinder
904 oil cylinder shaft 905 oil pipe
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the directional words "upper, lower, inner, outer" and the like included in the terms merely represent the orientation of the terms in a conventional use state or are colloquially understood by those skilled in the art, and should not be construed as limiting the terms.
As shown in fig. 1 to 6, the present invention provides a full-cycle life testing device for a rolling bearing, the device comprising: the device comprises a driving mechanism, a bearing testing mechanism and an information acquisition mechanism; the bearing 13 to be detected is arranged in the bearing test mechanism, the driving mechanism is connected with the bearing test mechanism to provide driving force for the bearing 13 to be detected, and the information acquisition mechanism is arranged on the bearing test mechanism to acquire test information of the bearing 13 to be detected; wherein the content of the first and second substances,
bearing bears accredited testing organization includes: the device comprises a test bearing seat 8, a rotating shaft 5 and a radial pressurizer 9, wherein a bearing 13 to be detected is arranged in the test bearing seat 8, the radial pressurizer 9 is arranged on the side of the test bearing seat 8 to apply radial pressure to the test bearing seat 8, the rotating shaft 5 is horizontally arranged, one end of the rotating shaft is connected with a driving mechanism, and the other end of the rotating shaft is inserted into the middle of the bearing 13 to be detected; the information acquisition mechanism includes: a temperature sensor 7, a pressure sensor 11 and an acceleration sensor 10.
In the scheme, the bearing to be detected is supported by the test bearing seat 8, then the radial pressurizer 9 is used for pressurizing the test bearing seat 8, the purpose is to provide a radial force for the test bearing seat, so that the inner bearing to be detected can reach the service life limit in a short time, the time cost of researchers is saved powerfully, then the bearing to be detected is driven to rotate by the driving mechanism, the information acquisition mechanism is used for effectively detecting and acquiring the temperature, vibration signals and friction torque information of the bearing to be detected during working, and the data support of the whole service cycle is provided for the service life research of the rolling bearing.
In a preferred embodiment of the present invention, the bearing load test mechanism further comprises: a first bearing pedestal 4 and a second bearing pedestal 6; the first bearing pedestal 4 for accompanying measurement is arranged at one end of the rotating shaft 5 close to the driving mechanism; and the second bearing pedestal 6 is arranged at one end of the rotating shaft 5 close to the test bearing pedestal 8.
In the above scheme, first bearing seat 4 and second bearing seat 6 of accompanying measuring can improve the stability of whole device effectively, is waiting to detect the normal work of bearing 13 guaranteeing, because radial presser 9 is right test bearing seat 8 pressurizes the back, test bearing seat 8's stability receives the influence, and first bearing seat 4 and second bearing seat 6 of accompanying measuring can then guarantee the normal clear of test work.
In a preferred embodiment of the present invention, the drive mechanism includes: a servo motor 2 and a coupling 3; the output end of the servo motor 2 is connected with the end part of the rotating shaft 5 through the coupler 3.
In the above scheme, the servo motor 2 provides a driving force for testing to drive the bearing 13 to be tested to normally rotate, and the coupler 3 also ensures that the driving force of the servo motor 2 can be transmitted to the rotating shaft 5 and then transmitted to the bearing 13 to be tested.
In a preferred embodiment of the invention, said radial pressers 9 comprise: a driving motor 901, an oil tank 902, an oil cylinder 903, an oil cylinder shaft 904 and an oil pipe 905;
the oil tank 902 is communicated with the oil cylinder 903 through the oil pipe 905, the driving motor 901 is connected with the oil tank 902 and used for driving oil liquid of the oil tank 902 into the oil cylinder 903, an oil cylinder shaft 904 on the oil cylinder 903 faces to the radial direction of the test bearing seat 8, and the oil cylinder shaft 904 can stretch and retract to abut against the side face of the test bearing seat 8.
In the above scheme, the oil cylinder shaft 904 is driven to perform telescopic operation by using an oil pressure driving principle, the length direction of the oil cylinder shaft 904 is the same as the radial directions of the test bearing seat 8 and the bearing 13 to be detected, and the end of the oil cylinder shaft 904 is pressed against the outer side surface of the test bearing seat 8 to apply a radial force to the test bearing seat 8 to accelerate the damage of the bearing 13 to be detected.
In a preferred embodiment of the present invention, the apparatus further comprises: a base 1; the driving mechanism and the bearing testing mechanism are respectively fixed on the upper surface of the base 1.
In a preferred embodiment of the invention, the lower surface of the base 1 is provided with a non-slip mat 12.
In the above scheme, the non-slip mat 12 can improve the friction factor of the lower surface of the base 1, thereby improving the stability of the base 1 and preventing the problem that the whole device moves in the working process to cause danger.
According to the above content, the working principle of the rolling bearing full-period life testing device provided by the invention is as follows: fixing a bearing to be detected on the test bearing seat 7, inserting one end of the rotating shaft 5 into the middle of the bearing to be detected 13 to achieve a fixing effect, connecting the other end of the rotating shaft 5 with an output shaft of the servo motor 2 through a coupler 3, supporting the middle of the rotating shaft 5 through the first and second testing bearing seats 4 and 6 to ensure the stability of the device, driving the driving motor 901 to extend the cylinder shaft 904 on the cylinder 903 until the end of the cylinder shaft 904 abuts against the test bearing seat 8 to enable the cylinder shaft 904 to bear a radial force, wherein the radial force can be controlled; then, the servo motor 2 is started to drive the bearing 13 to be detected to rotate, and the information acquisition mechanism is used for acquiring the test information of the bearing 13 to be detected, wherein the acquisition comprises the following steps: the temperature of the bearing 13 to be detected, the vibration signal of the bearing 13 to be detected and the friction torque after the bearing to be detected is subjected to pressure bearing and then rotates; the collected information is sent to the controller to be collected, so that data support is conveniently provided for the whole-period life test of the rolling bearing.
As shown in fig. 7 and 8, the present invention further provides a method for testing the full-cycle life of a rolling bearing, wherein the method comprises:
mounting a bearing 13 to be detected on the test bearing seat 8;
applying a radial force to the bearing 13 to be detected by using a radial pressurizer 9;
the servo motor 2 is used for driving the bearing 13 to be detected to rotate;
the information acquisition mechanism is used for acquiring the test information of the bearing 13 to be detected;
in a preferred embodiment of the present invention, the collecting, by the information collecting mechanism, the test information of the bearing 13 to be tested includes:
detecting the temperature of the bearing 13 to be detected by using the temperature sensor 7;
acquiring a vibration signal of a bearing 13 to be detected by using the acceleration sensor 10;
and acquiring the friction torque after the bearing to be detected is subjected to pressure bearing and rotates by using the pressure sensor 11.
According to the above content, the working principle of the rolling bearing full-cycle life testing method provided by the invention is as follows: fixing a bearing to be detected on the test bearing seat 7, inserting one end of the rotating shaft 5 into the middle of the bearing to be detected 13 to achieve a fixing effect, connecting the other end of the rotating shaft 5 with an output shaft of the servo motor 2 through a coupler 3, supporting the middle of the rotating shaft 5 through the first and second testing bearing seats 4 and 6 to ensure the stability of the device, driving the driving motor 901 to extend the cylinder shaft 904 on the cylinder 903 until the end of the cylinder shaft 904 abuts against the test bearing seat 8 to enable the cylinder shaft 904 to bear a radial force, wherein the radial force can be controlled; then, the servo motor 2 is started to drive the bearing 13 to be detected to rotate, and the information acquisition mechanism is used for acquiring the test information of the bearing 13 to be detected, wherein the acquisition comprises the following steps: the temperature of the bearing 13 to be detected, the vibration signal of the bearing 13 to be detected and the friction torque after the bearing to be detected is subjected to pressure bearing and then rotates; the collected information is sent to the controller to be collected, so that data support is conveniently provided for the whole-period life test of the rolling bearing.
In summary, the device and the method for testing the full-period service life of the rolling bearing provided by the invention overcome the problems that the detection precision of the rolling bearing service life detection device is poor, the detected data and the real data have certain difference, and the work planning of the rolling bearing is influenced in the prior art.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (8)
1. A rolling bearing full cycle life testing device, the device comprising: the device comprises a driving mechanism, a bearing testing mechanism and an information acquisition mechanism; the bearing (13) to be detected is arranged in the bearing testing mechanism, the driving mechanism is connected with the bearing testing mechanism to provide driving force for the bearing (13) to be detected, and the information acquisition mechanism is arranged on the bearing testing mechanism to acquire the testing information of the bearing (13) to be detected; wherein the content of the first and second substances,
bearing bears accredited testing organization includes: the device comprises a test bearing seat (8), a rotating shaft (5) and a radial pressurizer (9), wherein a bearing (13) to be detected is arranged in the test bearing seat (8), the radial pressurizer (9) is arranged on the side of the test bearing seat (8) to apply radial pressure to the test bearing seat (8), the rotating shaft (5) is horizontally arranged, one end of the rotating shaft is connected with a driving mechanism, and the other end of the rotating shaft is inserted into the middle of the bearing (13) to be detected;
the information acquisition mechanism includes: a temperature sensor (7), a pressure sensor (11) and an acceleration sensor (10).
2. The rolling bearing full cycle life testing device of claim 1, wherein said bearing load test mechanism further comprises: a first bearing pedestal (4) and a second bearing pedestal (6); the first bearing seat (4) for accompanying measurement is arranged at one end, close to the driving mechanism, of the rotating shaft (5); and the second accompanying measuring bearing seat (6) is arranged at one end of the rotating shaft (5) close to the measuring bearing seat (8).
3. The rolling bearing full cycle life testing device of claim 1, wherein the drive mechanism comprises: a servo motor (2) and a coupling (3);
the output end of the servo motor (2) is connected with the end part of the rotating shaft (5) through the coupler (3).
4. Rolling bearing full cycle life testing device according to claim 1, characterized in that said radial pressers (9) comprise: the device comprises a driving motor (901), an oil tank (902), an oil cylinder (903), an oil cylinder shaft (904) and an oil pipe (905);
the oil tank (902) is communicated with the oil cylinder (903) through the oil pipe (905), the driving motor (901) is connected with the oil tank (902) and used for driving oil of the oil tank (902) to the oil cylinder (903), an oil cylinder shaft (904) on the oil cylinder (903) faces to the radial direction of the test bearing seat (8), and the oil cylinder shaft (904) can stretch out and draw back to abut against the side face of the test bearing seat (8).
5. A rolling bearing full cycle life testing device according to claim 1, characterized in that said device further comprises: a base (1); the driving mechanism and the bearing testing mechanism are respectively fixed on the upper surface of the base (1).
6. Rolling bearing full cycle life test device according to claim 5, characterized in that the lower surface of the base (1) is provided with a non-slip pad (12).
7. A method for testing the full cycle life of a rolling bearing according to any of claims 1 to 6, characterized in that it comprises:
mounting a bearing (13) to be detected on the test bearing seat (8);
applying a radial force to the bearing (13) to be detected by using a radial pressurizer (9);
the servo motor (2) is used for driving the bearing (13) to be detected to rotate;
and the information acquisition mechanism is used for acquiring the test information of the bearing (13) to be detected.
8. The rolling bearing full-cycle life testing method according to claim 7, wherein the collecting test information of the bearing (13) to be tested by the information collecting mechanism comprises:
detecting the temperature of the bearing (13) to be detected by using the temperature sensor (7);
collecting vibration signals of a bearing (13) to be detected by using the acceleration sensor (10);
and acquiring the friction torque after the bearing to be detected is subjected to pressure bearing and rotates by using the pressure sensor (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010820838.0A CN111780973A (en) | 2020-08-14 | 2020-08-14 | Device and method for testing full-period service life of rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010820838.0A CN111780973A (en) | 2020-08-14 | 2020-08-14 | Device and method for testing full-period service life of rolling bearing |
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| Publication Number | Publication Date |
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| CN111780973A true CN111780973A (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010820838.0A Pending CN111780973A (en) | 2020-08-14 | 2020-08-14 | Device and method for testing full-period service life of rolling bearing |
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| CN (1) | CN111780973A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117686224A (en) * | 2024-02-02 | 2024-03-12 | 太原理工大学 | Fault diagnosis experiment platform for simulating cutting head bearing of heading machine |
-
2020
- 2020-08-14 CN CN202010820838.0A patent/CN111780973A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117686224A (en) * | 2024-02-02 | 2024-03-12 | 太原理工大学 | Fault diagnosis experiment platform for simulating cutting head bearing of heading machine |
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