Road roller bearing test device

Abstract

The utility model relates to bearing detection equipment, in particular to a road roller bearing test device, which comprises a driving motor, a test main shaft, a test wheel set, a box body and a sand box, the output end of the driving motor is connected with the test main shaft and drives the test main shaft to rotate, the test wheel set is arranged in the box body and comprises an eccentric wheel and a test bearing, the eccentric wheel and the test bearing are assembled on the test main shaft, and the test bearing is arranged in a bearing hole of the box body and used for supporting the test main shaft. A sand box is arranged on the lower portion of the box body, and the box body is arranged on sand in the sand box. The road roller bearing test device of the utility model can simulate the vibration load working condition of the road roller bearing in practical application, and realizes the life test of the whole shaft system of the roller bearing of the road roller.

Description

Technical Field

[0001] The utility model relates to bearing detection equipment, in particular to a roller bearing test device for a road roller. Background Art

[0002] A road roller is a construction machinery; a self-propelled compaction machine that uses the rolling action of a roller to compact soil, subgrade cushion, and pavement paving layer; widely used in projects such as road construction, dike construction, and dam construction. The existing upper roller bearing on a road roller is an important component of the road roller. Before leaving the factory, the road roller roller bearing needs to be subjected to a bench test on a test platform. Currently, there is no full-axis test platform for road roller roller bearings in the relevant field, and it is impossible to understand the reliability and quality of the roller bearing, which limits the quality inspection and optimization of the bearing, is not conducive to improving the bearing performance and extending the service life of the bearing. Summary of the Invention

[0003] In view of the defects existing in the above-mentioned prior art, the purpose of the present utility model is to provide a roller bearing test device for a road roller, which can realize the performance detection of the road roller roller bearing under the working conditions, facilitate the inspection of the bearing during use, and is convenient for optimizing and improving the bearing, and has the advantages of good test reliability and good accuracy.

[0004] To achieve the above purpose, the technical solution adopted by the present utility model is: a roller bearing test device for a road roller, including a driving motor, a test main shaft, a test wheel set, a box body, and a sand box; the output end of the driving motor is connected to the test main shaft and drives the test main shaft to rotate. The test wheel set is arranged in the box body. The test wheel set includes an eccentric wheel and a test bearing. The eccentric wheel and the test bearing are assembled on the test main shaft. The test bearing is arranged in the bearing hole of the box body to support the test main shaft. A sand box is arranged below the box body, and the box body is placed on the sand in the sand box.

[0005] Further, the output end of the driving motor is connected to the test main shaft through a coupling.

[0006] Further, the driving motor is a variable-frequency speed-regulating motor.

[0007] Further, the test wheel set includes one eccentric wheel and two test bearings, and the two test bearings are respectively arranged on both sides of the eccentric wheel.

[0008] Further, two groups of test wheel sets are arranged in parallel in the box body, and the two groups of test wheel sets are arranged at intervals.

[0009] Further, sealing end covers are fixed at both ends of the box body, and the sealing end covers are connected to the box body through bolts.

[0010] Further, an installation plate is arranged above the sand in the sand box, and the box body and the driving motor are fixed on the installation plate.

[0011] Further, a number of guide wheels are provided around the mounting plate, and the number of guide wheels are in contact with the inner wall of the sand box to provide support for the guide wheels.

[0012] Further, a number of damping columns are connected below the mounting plate, and the number of damping columns are buried in the sand of the sand box.

[0013] The beneficial effects of the present utility model are as follows: The roller bearing test device of the present utility model can simulate the vibration load conditions of the actual application of the roller bearing of the roller, and realize the full-axis life test of the roller wheel bearing. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the roller bearing test device of the present utility model;

[0015] Figure 2 is Figure 1 a side sectional view of the roller bearing test device of

[0016] In the figure: 1. Box body; 2. Mounting plate; 3. Flexible guide wheel; 4. Damping column; 5. Eccentric wheel; 6. Test main shaft; 7. Test bearing; 8. Driving motor; 9. Sand; 10. Sand box; 11. Coupling; 12. Sealing end cover. Detailed Embodiments

[0017] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0018] Referring to the attached Figure 1-2 , a roller bearing test device includes a driving motor 8, a test main shaft 6, a test wheel set, a box body 1 and a sand box 10; the output end of the driving motor 8 is connected to the test main shaft 6 and drives the test main shaft 6 to rotate, the test wheel set is arranged in the box body 1, the test wheel set includes an eccentric wheel 5 and a test bearing 7, the eccentric wheel 5 and the test bearing 7 are assembled on the test main shaft 6, the test bearing 7 is arranged in the bearing hole of the box body 1 for supporting the test main shaft 6, the lower part of the box body 1 is provided with a sand box 10, and the box body 1 is placed on the sand of the sand box 10.

[0019] Based on the above technical solution, the driving motor 8 drives the test spindle 6 to rotate, thereby driving the test bearing 7 and the eccentric wheel 5 arranged on the test spindle 6 to rotate. The centrifugal force generated during the rotation of the eccentric wheel 5 causes the test bearing 7 to vibrate, simulating the vibration effect of a press.

[0020] Further, in order to output the torque of the driving motor 8 to the test spindle 6, the output end of the driving motor 8 is connected to the test spindle 6 through a coupling 11.

[0021] Further, the driving motor 8 is a variable-frequency speed-regulating motor. The rotation speed of the test spindle 6 and the test bearing 7 thereon can be controlled by adjusting the rotation speed of the driving motor 8, and the vibration frequency generated by the rotation of the eccentric wheel 5 can also be changed, facilitating the testing of the performance of the bearing under different working conditions.

[0022] Further, the test wheel set includes one eccentric wheel 5 and two test bearings 6, and the two test bearings 6 are respectively arranged on both sides of the eccentric wheel 5.

[0023] Further, two groups of test wheel sets are arranged in parallel in the box body 1, and the two groups of test wheel sets are arranged at intervals without affecting and interfering with each other.

[0024] Further, sealing end caps 12 are fixed at both ends of the box body 1, and the sealing end caps 12 are connected to the box body 1 by bolts. Bearing holes for assembling the test bearing 7 can be formed inside the sealing end caps 12. Among the four test bearings 6 of the two groups of test wheel sets, the test bearings located on both sides of the box body 1 can be assembled into the bearing holes formed by the sealing end caps 12, and the two test bearings 7 located in the middle of the box body 1 are installed in the bearing holes of the bearing seats, and the bearing seats are bolted to the fixing plate inside the box body.

[0025] Further, an installation plate 2 is arranged above the sand 9 in the sand box 10, and the box body 1 and the driving motor 8 are fixed on the installation plate 2. This prevents the sand 9 in the sand box 10 from entering the interior of the test device and damaging the machine parts.

[0026] Further, a number of flexible guide wheels 3 are arranged around the installation plate 2. The number of flexible guide wheels 3 is in contact with the inner wall of the sand box 10 to provide support for the flexible guide wheels 3 and prevent the sand box 10 from shifting.

[0027] Further, a number of damping columns 4 are connected below the installation plate 2, and the number of damping columns 4 is buried in the sand of the sand box 10.

[0028] This test device mainly drives the test spindle 6 through a variable-frequency speed-regulating motor 8 via a coupling 11, and then the test spindle 6 drives the test bearing 7 thereon to rotate. Since an eccentric wheel 5 is provided on the test spindle 6, vibration will be generated due to centrifugal force during the rotation of the test spindle 6, thereby generating a vibration load on the test bearing 7, so as to simulate the actual vibration load condition of the roller bearing of a road roller. In addition, a sand box 10 is provided at the lower part of the box body 1 to absorb the self-vibration of the box body 1. At the same time, several damping columns 4 are provided at the lower part of the box body to better absorb the kinetic energy generated by the self-vibration of the box body 1. A number of flexible guide wheels 3 are provided around the box body, and the guide wheels 3 are in contact with the inner wall of the sand box 10 to limit the position of the sand box 1 and ensure the safety and reliability of the test.

[0029] It should be noted that the parts not detailed in the present utility model are prior art.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present utility model.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0032] In the present utility model, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0035] The above examples are only the best embodiments of the present invention. Obviously, the present invention is not limited to the above examples, and there are many variations. All variations that can be directly derived or associated with the contents disclosed by a person skilled in the art should be considered as the protection scope of the present invention.

Claims

1. A roller bearing test device, characterized in that: It includes a drive motor, a test spindle, a test wheel set, a box body and a sand box; the output end of the drive motor is connected to the test spindle and drives the test spindle to rotate. The test wheel set is arranged in the box body and includes an eccentric wheel and a test bearing. The eccentric wheel and the test bearing are assembled on the test spindle. The test bearing is arranged in the bearing hole of the box body to support the test spindle. The lower part of the box body is provided with a sand box, and the box body is placed on the sand in the sand box.

2. The roller bearing test device according to claim 1, characterized in that: The output end of the drive motor is connected to the test spindle through a coupling.

3. The roller bearing test device according to claim 1, characterized in that: The drive motor is a variable-frequency speed-regulating motor.

4. The roller bearing test device according to claim 1, characterized in that: The test wheel set includes one eccentric wheel and two test bearings, and the two test bearings are respectively arranged on both sides of the eccentric wheel.

5. A roller bearing test device according to claim 1 or 4, characterized in that: Two groups of test wheel sets are arranged in parallel in the box body, and the two groups of test wheel sets are arranged at intervals.

6. The roller bearing test device according to claim 1, characterized in that: Sealing end covers are fixed at both ends of the box body, and the sealing end covers are connected to the box body by bolts.

7. A roller bearing test device according to claim 1, characterized in that: An installation plate is arranged above the sand in the sand box, and the box body and the drive motor are fixed on the installation plate.

8. The roller bearing test device according to claim 7, characterized in that: A number of guide wheels are arranged around the installation plate, and the number of guide wheels is in contact with the inner wall of the sand box to provide support for the guide wheels.

9. The roller bearing test device according to claim 7, characterized in that: A number of damping columns are connected below the installation plate, and the number of the damping columns is buried in the sand in the sand box.

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