Bearing static axial loading test device

Abstract

A bearing static axial loading test device is characterized in that the bearing static axial loading test device comprises a base, one end of the base is provided with a boss, the boss is provided with a loading electric cylinder, and an output shaft of the loading electric cylinder is provided with a bearing test piston mechanism; a bearing test piston mechanism is arranged on one side of the base, a bearing test seat is arranged on the other side of the base, the bearing test seat comprises a bearing outer bushing, a first opening is formed in the bearing outer bushing in the direction facing the bearing test piston mechanism, a test shaft is arranged in the first opening, and a bearing to be tested is fixed on the mounting surface of the test shaft through a bearing inner bushing; and the loading end of the bearing test piston mechanism is in contact with the axial surface of the bearing to be tested to provide loading force. The utility model discloses a static axial loading test device for a bearing, which is used for detecting data after an axial force is added to an outer ring of the bearing, and the whole structure is lighter.

Description

Technical Field

[0001] The utility model relates to the field of bearing manufacturing, in particular to a bearing static axial loading test device. Background Art

[0002] Axial loading refers to the force applied to the bearing or shaft along the axis. In the high-altitude simulation test of the turboprop engine, axial loading of its output shaft is an important step. The axial force increases with the increase of speed and output power, which is crucial to the test results and engine performance.

[0003] Most of the existing bearing axial loading is achieved by adding weights through a lever mechanism or through a hydraulic mechanism. Among them, although the lever mechanism loading has a simple structure and stable loading, it has the defect that it can only load in jumps according to the weight of the weight and cannot be loaded continuously; while hydraulic loading can load continuously, but it has the defects of inconvenience in use, high cost, difficult maintenance, unstable loading and low efficiency. In addition, the hydraulic mechanism may also cause pollution to the operating environment due to leakage of hydraulic fluid.

[0004] Therefore, a device that can achieve continuous, stable and environmentally friendly axial loading force on bearings or rotating shafts is an issue that urgently needs to be solved. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a bearing static axial loading test device.

[0006] In order to achieve the purpose of this utility model, the technical solution adopted is:

[0007] A bearing static axial loading test device, comprising:

[0008] A base, one end of which is provided with a boss, a loading electric cylinder is provided on the boss, and a bearing test piston mechanism is provided on the output shaft of the loading electric cylinder;

[0009] A bearing test seat is arranged on the other side of the base, and the bearing test seat includes a bearing outer sleeve, and the bearing outer sleeve is provided with a first opening in the direction of the bearing test piston mechanism.

[0010] A test shaft is arranged in the first opening, and the bearing to be tested is fixed on the mounting surface of the test shaft through a bearing inner sleeve;

[0011] The loading end of the bearing test piston mechanism contacts the axial surface of the bearing to be tested to provide a loading force.

[0012] In a preferred embodiment of the present invention, the output shaft of the loading electric cylinder is fixed to the edge of the boss through a fixing plate.

[0013] In a preferred embodiment of the present invention, a fixing hole is provided on the upper end surface of the fixing plate, and the output shaft of the loading electric cylinder is fixed to the edge of the boss through the fixing hole.

[0014] In a preferred embodiment of the present invention, the test shaft comprises a support end and a shaft end connected to the support end, and the support end is arranged in a test shaft installation groove of the bearing outer sleeve.

[0015] In a preferred embodiment of the present invention, the shaft end is provided with a concave mounting surface for fixing the bearing to be tested.

[0016] In a preferred embodiment of the present invention, the loading end of the bearing test piston mechanism includes a first loading end in contact with a first axial surface of the bearing to be tested and a second loading end in contact with a second axial surface of the bearing to be tested.

[0017] The beneficial effects of the utility model are:

[0018] The utility model discloses a bearing static axial loading test device, which is used for detecting data after an axial force is added to a bearing outer ring, and the overall structure is more lightweight. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0020] Figure 2 The structure of the utility model is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following structure, the description of the well-known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] like Figure 1 A bearing static axial loading test device as shown in or 2 includes a base 100, a boss 110 is arranged at one end of the base 100, a loading electric cylinder 120 is arranged on the boss 110, and a bearing test piston mechanism 130 is arranged on the output shaft 121 of the loading electric cylinder 120.

[0024] Specifically, the output shaft 121 of the loading electric cylinder 120 is fixed to the edge of the boss 110 through the fixing plate 140 .

[0025] A fixing hole 141 is formed on the upper end surface of the fixing plate 140 , and the output shaft of the loading cylinder 120 is fixed to the edge of the boss 110 through the fixing hole 141 .

[0026] The bearing test seat 200 is disposed at the other side of the base 100 . The bearing test seat 200 includes a bearing outer bushing 210 . The bearing outer bushing 210 is provided with a first opening 211 in a direction toward the bearing test piston mechanism 130 .

[0027] A test shaft 300 is arranged in the first opening 211 , and a bearing 400 to be tested is fixed on a mounting surface 310 of the test shaft 300 through a bearing inner sleeve 220 ;

[0028] The loading end of the bearing test piston mechanism 130 contacts the axial surface of the bearing 400 to be tested to provide a loading force.

[0029] The test shaft 300 includes a support end 310 and a shaft end 320 connected to the support end 310 . The support end 310 is disposed in the test shaft installation groove 211 of the bearing outer bushing 210 .

[0030] The shaft end 320 is provided with a concave mounting surface 321 for fixing the bearing 400 to be tested.

[0031] The loading end of the bearing test piston mechanism 130 includes a first loading end 131 contacting a first axial surface of the bearing 400 to be tested and a second loading end 132 contacting a second axial surface of the bearing 400 to be tested.

[0032] The principle of the utility model is as follows:

[0033] 1. Bearing installation

[0034] Install the bearing inner sleeve 220 onto the bearing outer sleeve 210 as required.

[0035] The bearing is installed on the test shaft 300 as required, and then the test shaft 300 is installed on the bearing outer bushing 210;

[0036] The test shaft 300 is used to support and fix the inner ring of the bearing, and the bearing test piston mechanism 130 is applied to the outer ring of the bearing, and the axial force is applied to the outer ring through the loading cylinder 120;

[0037] During the test, the loading of the loading electric cylinder 120 will be controlled by a program, and the output loading force and loading time will be set by the program.

[0038] During the test, the built-in sensor of the loading electric cylinder 120 will collect the collected signals to the computer and record and save them in chronological order.

[0039] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above.

[0040] Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. A bearing static axial loading test device, characterized in that: include: A base, one end of which is provided with a boss, a loading electric cylinder is provided on the boss, and a bearing test piston mechanism is provided on the output shaft of the loading electric cylinder; A bearing test seat is arranged on the other side of the base, and the bearing test seat includes a bearing outer sleeve, and the bearing outer sleeve is provided with a first opening in the direction of the bearing test piston mechanism. A test shaft is arranged in the first opening, and the bearing to be tested is fixed on the mounting surface of the test shaft through a bearing inner sleeve; The loading end of the bearing test piston mechanism contacts the axial surface of the bearing to be tested to provide a loading force.

2. A bearing static axial loading test device as claimed in claim 1, characterized in that: The output shaft of the loading electric cylinder is fixed to the edge of the boss through a fixing plate.

3. A bearing static axial loading test device as claimed in claim 2, characterized in that: A fixing hole is provided on the upper end surface of the fixing plate, and the output shaft of the loading electric cylinder is fixed to the edge of the boss through the fixing hole.

4. A bearing static axial loading test device as claimed in claim 1, characterized in that: The test shaft comprises a support end and a shaft end connected to the support end, and the support end is arranged in the test shaft installation groove of the bearing outer sleeve.

5. A bearing static axial loading test device as claimed in claim 4, characterized in that: The shaft end is provided with a concave mounting surface for fixing the bearing to be tested.

6. A bearing static axial loading test device as claimed in claim 1, characterized in that: The loading end of the bearing test piston mechanism comprises a first loading end in contact with a first axial surface of the bearing to be tested and a second loading end in contact with a second axial surface of the bearing to be tested.

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