Device for testing adhesive capacity of lubricating grease for bearing
By designing a combination device consisting of a test base, a test mold, and an air blowing head, the problem of evaluating the adhesion ability of grease on the surface of bearing steel was solved, realizing an intuitive and effective evaluation of the adhesion ability of grease, which is applicable to the testing of different bearing steels.
Patent Information
- Application Number
- CN202423095096.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing technologies lack an intuitive way to evaluate the adhesion ability of grease to the surface of bearing steel, which makes grease prone to failure under high-speed conditions.
A testing device including a test base, a test mold, and an air blowing head was designed. The device evaluates the adhesion ability of grease on the surface of bearing steel by blowing grease through the air blowing head and combining heating and rotation functions. The adhesion ability is evaluated by the amount of grease residue.
It enables an intuitive and effective evaluation of grease adhesion ability, has a simple structure, is suitable for testing different bearing steels, and simulates the working environment of grease.
Smart Images
Figure CN223611360U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a testing device more specifically relates to a bearing grease adhesion capacity testing device. BACKGROUND
[0002] Rolling bearing continuously bears transmission function in working time, always keeps certain even extremely high rotating speed, and closed type bearing cannot frequently supplement grease due to design characteristics, and in the running process, the grease is always subjected to shearing force between the grinding surfaces, the thickener structure of the grease is destroyed, the grease becomes thin, is easily thrown out from the sealing gap under high speed working condition, and the lack of lubricating grease will lead to early failure, therefore, the adhesion capacity of the lubricating grease is very important in the actual use, and currently there is no intuitive way to evaluate the adhesion capacity of the lubricating grease on the bearing steel surface. UTILITARY MODEL
[0003] In view of the defects in the prior art, the utility model aims at providing a bearing grease adhesion capacity testing device which can effectively realize intuitive evaluation of the adhesion capacity of the lubricating grease on the bearing steel surface.
[0004] To achieve the above object, the utility model provides the following technical scheme: a bearing grease adhesion capacity testing device, which comprises a test base, a test mold and a blowing head, the test mold is fixedly installed on the upper side of the test base, the test mold is a semicircular ring structure, a test raceway is formed in the inner ring wall of the test mold, the blowing head is installed at the position close to the test mold of the test base, and the air outlet of the blowing head is arranged opposite to the test raceway.
[0005] As a further improvement of the utility model, the test mold is made of heat-conducting material, the test raceway is made of bearing steel, and an electric heating plate is arranged in the position of the test base relative to the test mold for heating the test mold.
[0006] As a further improvement of the utility model, a U-shaped groove is formed in the inner ring wall of the test mold, the test raceway is a semicircular ring structure matched with the inner ring wall of the test mold, a raceway test surface is formed in the inner ring wall of the test raceway, and a U-shaped sliding rail is arranged on the outer ring wall of the test raceway and embedded into the U-shaped groove to install the test raceway on the test mold.
[0007] As a further improvement of the utility model, a rotating column is fixed below the blowing head, and a rotating motor is arranged in the test base relative to the rotating column, the rotating shaft of the rotating motor is coaxial with the rotating column to drive the blowing head to rotate.
[0008] The utility model discloses a beneficial effect, through the setting of test base, test mould and blow head, can effectively realize the use blow head blow -off test the lubricating grease adhered on the raceway, then according to the mode of the residual amount of final lubricating grease simply and effectively realizes the evaluation for the adhesion ability of lubricating grease, and the overall structure is simple, and easy to realize. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 It is the structural diagram of bearing lubricating grease adhesion ability testing device of the utility model. DETAILED DESCRIPTION
[0010] The utility model will be further described in detail in connection with the embodiment given by the accompanying drawings.
[0011] Referring to Figure 1 The utility model discloses a bearing lubricating grease adhesion ability testing device, it is characterized by: including test base 1, test mould 2 and blow head 3, test mould 2 is fixedly installed on the upper side of test base 1, test mould 2 is semicircular ring structure, and the inner ring wall of this test mould 2 is equipped with test raceway 21, blow head 3 is installed on the position of test base 1 close to test mould 2, and the air outlet of this blow head 3 is opposite test raceway 21 setting, and the temperature control of test mould 2 is realized in test base 1 in this embodiment through the mode of setting heating plate and temperature control system, for this, the following evaluation process is possessed to the testing device of this embodiment: the work surface temperature is controlled by preheating test base 1, and the lubricating grease of even coating is taken to the work surface 1cm away from blow head 3, and the thickness of lubricating grease does not exceed 3mm, and the maximum appearance size of lubricating grease surface cover area does not exceed 1cm, and the sum m0 of the weight of weighing plate and grease is weighed, and the weighing plate is placed on the work surface again, and blow switch is opened, and lubricating grease is swept for 30 seconds or more, and blow switch is closed, and the lubricating grease outside continuous track is wiped with non-woven fabric, and the sum m1 of the weight of weighing plate and grease is weighed again, and the adhesion ability of lubricating grease is evaluated through the size of m0-m1 / m0 value, and the final result is closer to 1, and the adhesion ability is better.
[0012] In another aspect, the test mold 2 of the embodiment can be detachably connected with the test base 1, and thus the following evaluation process can be performed: the test base 1 is provided with a temperature control system, and the removable working surface fixed on the test base 1 is a bearing outer ring raceway surface made of bearing steel GCr15, the blowing head 3 is fixed on one side of the bearing outer ring notch and horizontally placed, the blowing direction is parallel to the working surface at the notch, the blowing head 3 is connected with a nitrogen gas supply pipeline, the blowing gas flow rate is adjusted to 50ml / min through a gas valve and a gas flow rate table, then the lubricating grease is blown for more than 30 seconds, the blowing switch is closed, the lubricating grease outside the continuous track is wiped off with non-woven fabric, the sum m1 of the weight of the flat plate and the lubricating grease is weighed again, and the adhesion capacity of the lubricating grease is evaluated according to the value of m0-m1 / m0, and the closer the final result is to 1, the better the adhesion capacity is
[0013] Further, the embodiment also provides the test raceway 21 and the test mold 2 structure matched with the I-shaped track, the two are assembled through the cooperation of the I-shaped groove 22 and the I-shaped slide rail 23, so that the test mold 2 can be made of the same heat-conducting material as the test base 1, has better heat conductivity, the I-shaped groove 22 and the I-shaped slide rail 23 can make the connection between the test raceway 21 and the test mold 2 more reliable, and the lubricating grease for different bearing steels can be tested, and the application range is further increased.
[0014] Further, the blowing head 3 of the embodiment is rotatably installed on the test base 1 through the rotary column 31, and the rotary blowing is realized, the working environment of the existing lubricating grease is well simulated, and the structure is simple and easy to realize.
[0015] In summary, through the combination of the test base 1, the test mold 2 and the blowing head 3, the lubricating oil adhered to the working surface of the test raceway 21 can be simply and effectively realized, and the adhesion capacity of the lubricating oil can be effectively evaluated.
[0016] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above embodiments. Any technical solution falling within the concept of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.
Claims
1. A bearing grease adhesion ability testing device characterized by: Including test base (1), test mould (2) and blow head (3), test mould (2) is fixedly installed on the upper side of test base (1), test mould (2) is semicircular ring structure, and the inner ring wall of test mould (2) is provided with test raceway (21), and blow head (3) is installed on the position of test base (1) close to test mould (2), and the air outlet of blow head (3) is opposite test raceway (21) setting.
2. The bearing grease adhesion ability testing device according to claim 1, characterized by: Test mould (2) is made of heat-conducting material, test raceway (21) is made of bearing steel, and electric heating plate is arranged in the position of test base (1) relative to test mould (2), for heating test mould (2).
3. The bearing grease adhesion ability testing device according to claim 2, characterized by: The inner ring wall of test mould (2) is provided with the groove (22), and the inner ring wall of test raceway (21) is provided with the raceway test surface, and the outer ring wall of test raceway (21) is provided with the groove (22), and the groove (22) is embedded into the groove (22), so as to install test raceway (21) on test mould (2).
4. The bearing grease adhesion ability testing device according to claim 3, characterized by: The lower portion of blow head (3) is fixed with rotating column (31), and rotating motor is arranged in the position of test base (1) relative to rotating column (31), the rotating shaft of rotating motor is coaxial with rotating column (31), so as to drive blow head (3) to rotate.