Bearing static radial loading test device

Abstract

The utility model discloses a bearing static radial loading test device, which is characterized in that the bearing static radial loading test device comprises a base, a boss is arranged on the base, a loading electric cylinder for providing radial loading force is arranged on the boss, and an output shaft of the loading electric cylinder extends out of the edge of the boss; a loading piston mechanism is arranged on an output shaft of the loading electric cylinder through a coupling; an arc-shaped loading end is arranged at the tail end of the loading piston mechanism; a test shaft is arranged on a bearing bush, the outer end of the test shaft is axially sleeved with a bearing to be loaded, the radial face of the bearing outer ring of the bearing to be loaded is matched with the arc-shaped loading end structure, and the loading electric cylinder outputs loading force through a set time program. And after static radial loading force is applied to the to-be-loaded bearing through the loading piston mechanism, data acquisition of the radial loading force is carried out through a sensor arranged at the tail end of the output shaft.

Description

Technical Field

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

[0002] The radial load force of the bearing refers to the force acting in the radial direction of the bearing, which is usually caused by the radial load borne by the bearing. During the working process of the bearing, the radial load is generated by the weight of the parts on the shaft, the axial preload or the external force.

[0003] When the radial clearance of the bearing increases, it has the function of an angular contact bearing and can bear a large axial load. While the self-aligning ball bearing can bear radial loads, it can also bear a small amount of axial load. The deep groove ball bearing mainly bears radial loads and can also bear a certain amount of axial load.

[0004] It should be noted that the radial loading force of the bearing is not constant. It will change with the changes of factors such as the working state of the bearing, load size and direction.

[0005] Therefore, when using bearings, it is necessary to reasonably analyze and calculate the radial loading force of the bearings according to actual conditions to ensure the normal operation and service life of the bearings.

[0006] To this end, the utility model designs a bearing static radial loading test device to achieve lightweight detection of the static radial loading force of the bearing. Utility Model Content

[0007] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a bearing static radial loading test device.

[0008] In order to achieve the purpose of this utility model, the technical solution adopted is:

[0009] A bearing static radial loading test device, comprising:

[0010] A base, on which a boss is arranged, on which a loading electric cylinder providing radial loading force is arranged, and an output shaft of the loading electric cylinder extends out of an edge of the boss;

[0011] A loading piston mechanism is arranged on the output shaft of the loading electric cylinder via a coupling;

[0012] The end of the loading piston mechanism is an arc-shaped loading end head;

[0013] A test shaft is arranged on a bearing bushing, and a bearing to be loaded is axially sleeved on the outer end of the test shaft, and the radial surface of the outer ring of the bearing to be loaded is adapted to the arc-shaped loading end head structure.

[0014] The loading electric cylinder outputs the loading force through a set time program, and after the static radial loading force is applied to the bearing to be loaded through the loading piston mechanism, the data of the radial loading force is collected through a sensor arranged at the end of the output shaft.

[0015] In a preferred embodiment of the present invention, the loading electric cylinder is fixed to the boss via a fixing plate fixed to the edge of the boss.

[0016] In a preferred embodiment of the utility model, a fixing through hole is opened on the upper end of the fixing plate, and the diameter of the fixing through hole matches the diameter of the output shaft of the loading electric cylinder, so that the output shaft of the loading electric cylinder can extend out of the edge of the boss.

[0017] In a preferred embodiment of the present utility model, the loading piston mechanism includes a piston mounting shaft coaxially arranged with the output shaft through a coupling, and the arc-shaped loading end is arranged outside the piston mounting shaft through a threaded fastener.

[0018] The beneficial effects of the utility model are:

[0019] The utility model designs a bearing static radial loading test device to realize lightweight detection of the static radial loading force of the bearing. The arc-shaped loading end is detachable, and different arc-shaped loading ends can be installed to meet the detection requirements of different types of bearings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0021] Figure 2 The structure of the utility model is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0022] 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.

[0023] 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.

[0024] like Figure 1-2 A bearing static radial loading test device shown in the figure includes a base 100, a boss 110 is arranged on the base 100, a loading cylinder 200 for providing radial loading force is arranged on the boss 110, and the output shaft 210 of the loading cylinder 200 extends out of the edge of the boss 110. In order to facilitate the fixing of the loading cylinder 200, the loading cylinder 200 is fixed to the boss 110 through a fixing plate 120 fixed to the edge of the boss 110.

[0025] A fixing through hole 121 is formed at the upper end of the fixing plate 120 . The diameter of the fixing through hole 121 matches the diameter of the output shaft 210 of the loading electric cylinder 200 , so that the output shaft 210 of the loading electric cylinder 200 extends out of the edge of the boss 110 .

[0026] A loading piston mechanism 300 is provided on the output shaft 210 of the loading electric cylinder 200 via a coupling 220 , and an arc-shaped loading end head 310 is provided at the end of the loading piston mechanism 300 .

[0027] Specifically, the loading piston mechanism 300 includes a piston mounting shaft 320 coaxially arranged with the output shaft 210 through a coupling 220, and an arc-shaped loading end 310 is arranged outside the piston mounting shaft 320 through a threaded fastener 330. The threaded fastener 330 is a hexagon socket bolt.

[0028] A bearing bushing 400 is arranged on the base 100, a test shaft 410 is arranged on the bearing bushing 400, a bearing 500 to be loaded is axially sleeved on the outer end of the test shaft 410, and a radial surface 501 of the outer ring of the bearing 500 to be loaded is structurally adapted to the arc-shaped loading end head 310.

[0029] The loading electric cylinder 200 outputs the loading force through a set time program, applies a static radial loading force to the bearing 500 to be loaded through the loading piston mechanism 300, and then collects data of the radial loading force through the sensor 211 set at the end of the output shaft 210.

[0030] The working principle of the utility model is as follows:

[0031] Install the test shaft onto the bearing bushing as required; install the bearing onto the test shaft as required; connect the piston to the coupling via bolts, and then connect the coupling to the output shaft.

[0032] There is a small step on the test shaft to support and fix the inner ring of the bearing. The piston is semicircular and matches the outer diameter of the outer ring of the bearing. The piston is driven by an electric cylinder to load radial force on the bearing.

[0033] During the test, the loading of the electric cylinder will be controlled by a program, and the program will set the output loading force and loading time.

[0034] During the test, the sensor will collect the collected signals to the computer and record and save them in chronological order.

[0035] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above.

[0036] 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 radial loading test device, characterized in that: include: A base, on which a boss is arranged, on which a loading electric cylinder providing radial loading force is arranged, and an output shaft of the loading electric cylinder extends out of an edge of the boss; A loading piston mechanism is arranged on the output shaft of the loading electric cylinder via a coupling; The end of the loading piston mechanism is an arc-shaped loading end head; A test shaft is arranged on a bearing bushing, and a bearing to be loaded is axially sleeved on the outer end of the test shaft, and the radial surface of the outer ring of the bearing to be loaded is adapted to the arc-shaped loading end head structure. The loading electric cylinder outputs the loading force through a set time program, and after the static radial loading force is applied to the bearing to be loaded through the loading piston mechanism, the data of the radial loading force is collected through a sensor arranged at the end of the output shaft.

2. A bearing static radial loading test device as claimed in claim 1, characterized in that: The loading electric cylinder is fixed on the boss via a fixing plate fixed on the edge of the boss.

3. A bearing static radial loading test device as claimed in claim 2, characterized in that: A fixing through hole is formed at the upper end of the fixing plate, and the diameter of the fixing through hole matches the diameter of the output shaft of the loading electric cylinder so that the output shaft of the loading electric cylinder can extend out of the edge of the boss.

4. A bearing static radial loading test device as claimed in claim 1, characterized in that: The loading piston mechanism comprises a piston mounting shaft coaxially arranged with the output shaft through a coupling, and the arc-shaped loading end head is arranged outside the piston mounting shaft through a threaded fastener.

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