High-speed bearing friction torque detection device

Abstract

The utility model discloses a high-speed bearing friction torque detection device, which comprises a test base, an ejection mechanism, a test upper seat and a driving motor, the test upper seat is positioned right above the test base, the top of the test upper seat is fixedly connected with the driving motor, the lower surface of the test upper seat is provided with a blocking cover, the center of the test upper seat is provided with a press-fit seat, and the press-fit seat is fixedly connected with the push-out mechanism. The upper end of the test base is fixedly connected with a concave cavity, the center of the concave cavity is provided with an ejection mechanism in telescopic connection, the ejection mechanism comprises a guide rod, an ejection spring and a buckling seat, the buckling seat is fixedly connected to the top of the guide rod, the surface of the buckling seat is provided with a buckling step, and the joint of the guide rod and the test base is provided with a guide hole; the guide rod is embedded in the guide hole and is in sliding connection with the guide hole, and the bottom of the test base is fixedly connected with a torque sensor. According to the utility model, the center of the test base is provided with the ejection mechanism which can stretch up and down, so that the bearing can be conveniently ejected out of the concave cavity, and the convenience of detection operation is improved.

Description

A high-speed bearing friction torque detection device Technical Field

[0001] This utility model relates to the field of bearing testing technology, specifically a high-speed bearing friction torque testing device. Background Technology

[0002] Patent No. CN210293504U discloses "a high-speed bearing friction torque detection device, characterized in that: it includes a bearing housing and a drive mechanism, the bearing housing has a cavity, the bottom of the cavity has a fixing seat for the bearing to be tested to be fitted and the outer ring of the bearing to be tested to be suspended, the cavity has an upper cover, the upper cover includes a first upper cover linked with the drive mechanism and a second upper cover covering the cavity opening, the first upper cover has a mounting part on the side facing the fixing seat, the mounting part is fixedly connected to the side facing the cavity to abut the outer ring of the bearing to be tested, the second upper cover is fitted on the mounting part and located between the abutment part and the first upper cover, and the bearing housing is provided with a torque sensor", which can detect the torque of high-speed bearings in an oil bath environment.

[0003] Currently, the existing testing device is inconvenient for testing different bearings because the bearings are immersed in oil, making replacement difficult and causing inconvenience for testing personnel. Therefore, a high-speed bearing friction torque testing device is proposed. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a high-speed bearing friction torque testing device, solving the problem of inconvenient disassembly and assembly during the testing process of bearings immersed in oil. This invention features a vertically retractable ejection mechanism at the center of the test base, facilitating the ejection of the bearing from the cavity and improving the ease of loading and unloading the bearing, thus enhancing the convenience of the testing operation. Furthermore, the replaceable bushing on the surface of the locking seat, combined with a replaceable pressing seat at the bottom of the test base, allows for easy replacement when testing bearings of different sizes, improving the versatility of the testing device for testing various bearings.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-speed bearing friction torque detection device, comprising a test base, an ejection mechanism, a test upper seat, and a drive motor. The test upper seat is located directly above the test base, and the drive motor is fixedly connected to the top of the test upper seat. A cover is provided on the lower surface of the test upper seat, and a pressing seat is provided at the center of the test upper seat. A cavity is fixedly connected to the upper end of the test base, and an ejection mechanism with telescopic connection is provided at the center of the cavity. The ejection mechanism includes a guide rod, an ejection spring, and a fastening seat. The fastening seat is fixedly connected to the top of the guide rod, and a fastening step is provided on the surface of the fastening seat. A guide hole is provided at the connection between the guide rod and the test base, and the guide rod is embedded in the guide hole and slidably connected to the guide hole. The ejection spring is fixedly connected to the bottom of the guide rod, and a torque sensor is fixedly connected to the bottom of the test base.

[0008] As an improvement to the above technical solution, the cover has a through hole in the center, and the cover and the top of the cavity are fastened together.

[0009] As an improvement to the above technical solution, the upper surface of the cover is provided with annularly distributed positioning holes, and an elastic element is provided between the positioning holes and the test seat.

[0010] As an improvement to the above technical solution, the side wall of the guide rod is provided with an arc-shaped keyway, and a limiting pad is fixedly connected to the surface of the guide hole. The center of the limiting pad is provided with an arc-shaped convex key.

[0011] As an improvement to the above technical solution, the surface of the snap-fit ​​step is fitted with a bushing, and the inner wall of the bushing is provided with a raised spline.

[0012] As an improvement to the above technical solution, a threaded sleeve is fixedly connected to the upper surface of the pressing seat, and the test seat is threadedly connected to the pressing seat.

[0013] (III) Beneficial Effects

[0014] This invention provides a high-speed bearing friction torque detection device. It has the following advantages:

[0015] This invention features a retractable ejection mechanism at the center of the test base, which facilitates ejecting the bearing from the cavity, making it easier to load and unload the bearing and improving the convenience of the testing operation. Furthermore, the replaceable bushing on the surface of the fastening seat, combined with the replaceable pressing seat at the bottom of the test base, allows for easy replacement when testing bearings of different sizes, thus improving the versatility of the testing device for different bearings. Attached Figure Description

[0016] Figure 1 is a side cross-sectional view of the high-speed bearing friction torque detection device of this utility model;

[0017] Figure 2 is a schematic diagram of the guide rod of this utility model;

[0018] Figure 3 is a structural schematic diagram of the test base of this utility model.

[0019] In the diagram: Test base-1, ejection mechanism-2, test upper seat-3, drive motor-4, cover-5, pressing seat-6, cavity-7, guide rod-8, ejection spring-9, fastening seat-10, fastening step-11, guide hole-12, torque sensor-13, through hole-14, positioning hole-15, elastic element-16, keyway-17, limit pad-18, convex key-19, bushing-20, spline-21, threaded sleeve-23. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please refer to Figures 1-3. This utility model embodiment provides a technical solution: a high-speed bearing friction torque detection device, including a test base 1, an ejection mechanism 2, a test upper seat 3, and a drive motor 4. The test upper seat 3 is located directly above the test base 1. The drive motor 4 is fixedly connected to the top of the test upper seat 3. A cover 5 is provided on the lower surface of the test upper seat 3. A pressing seat 6 is provided at the center of the test upper seat 3. A cavity 7 is fixedly connected to the upper end of the test base 1. The ejection mechanism 2, which is telescopically connected, is provided at the center of the cavity 7. The ejection mechanism 2 includes a guide rod 8, an ejection spring 9, and a fastening seat 10. The fastening seat 10 is fixedly connected to the top of the guide rod 8. A fastening step 11 is provided on the surface of the fastening seat 10. A guide hole 12 is provided at the connection between the guide rod 8 and the test base 1. The guide rod 8 is embedded in the guide hole 12 and slidably connected to the guide hole 12. The ejection spring 9 is fixedly connected to the bottom of the guide rod 8. A torque sensor 13 is fixedly connected to the bottom of the test base 1.

[0022] In a further improvement, the cover 5 has a through hole 14 in the center, and the cover 5 is fastened to the top of the cavity 7. By fastening the cover 5 to the top of the cavity 7, oil spillage is prevented during the test, thus improving the safety of the test.

[0023] Further improvements include annularly distributed positioning holes 15 on the upper surface of the cover 5, with an elastic element 16 between the positioning holes 15 and the test seat 3. By providing the elastic element 16 between the cover 5 and the test seat 3, the stability of the connection between the cover 5 and the cavity 7 can be ensured during testing, thus preventing oil from spilling out.

[0024] Further improvements include an arc-shaped keyway 17 on the side wall of the guide rod 8, a limiting pad 18 fixedly connected to the surface of the guide hole 12, and an arc-shaped convex key 19 at the center of the limiting pad 18. By providing a keyway 17 on the side wall of the guide rod 8 and cooperating with the limiting pad 18 with the convex key 19, the stability of the connection between the ejection mechanism 2 and the test base 1 is improved, and axial sliding between the ejection mechanism 2 and the test base 1 is avoided, which would affect the detection accuracy.

[0025] In a further improvement, a bushing 20 is sleeved on the surface of the snap-fit ​​step 11, and the inner wall of the bushing 20 is provided with a raised spline 21. By providing a sleeved bushing 20 on the surface of the snap-fit ​​step 11, it is convenient to replace different bushings 20 when testing bearings with different inner diameters, thereby improving the versatility of the testing device.

[0026] Specifically, the upper surface of the pressing seat 6 is fixedly connected with a threaded sleeve 23, and the test seat 3 is threadedly connected to the pressing seat 6. By providing a threaded sleeve 23 on the upper surface of the pressing seat 6, it is convenient to replace the sleeve when testing bearings with different outer diameters, thereby improving the versatility of the testing device.

[0027] In use, according to the inner and outer diameters of the bearing, a suitable bushing 20 and a pressing seat 6 are selected. The shaft sleeve is placed on the surface of the fastening seat 10. The test upper seat 3 moves downward, and the pressing seat 6 squeezes the outer ring surface of the bearing. At the same time, it pushes the ejector rod to move downward along the guide hole 12, so that the bearing is immersed in the lubricating oil. The cover 5 is fastened to the surface of the cavity 7 under the action of the elastic element 16 to prevent the lubricating oil from spilling out. The drive motor 4 drives the test upper seat 3 to rotate at high speed. The torque value M1 can be obtained through the torque sensor 13. Then, the detection device is kept unchanged under other conditions and operated in the state without the bearing to be tested to obtain the torque value M2. M2-M1 is the torque value M3 of the high-speed bearing in the oil bath environment.

[0028] The problem solved by this invention is that when testing different bearings, the bearings are immersed in oil, making replacement inconvenient and causing inconvenience to the testing personnel. This invention solves this problem by providing a vertically retractable ejection mechanism 2 at the center of the test base 1, which facilitates ejecting the bearings from the cavity 7, making it easier to load and unload the bearings and improving the convenience of the testing operation. Furthermore, by providing a replaceable bushing 20 on the surface of the fastening seat 10, which works in conjunction with a replaceable pressing seat 6 at the bottom of the test upper seat 3, it is convenient to replace bearings of different sizes when testing them, thus improving the versatility of the testing device for testing different bearings.

[0029] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-speed bearing friction torque detection device, comprising a test base (1), an ejection mechanism (2), a test upper seat (3), and a drive motor (4), characterized in that: The test upper seat (3) is located directly above the test base (1). A drive motor (4) is fixedly connected to the top of the test upper seat (3). A cover (5) is provided on the lower surface of the test upper seat (3). A pressing seat (6) is provided in the center of the test upper seat (3). A cavity (7) is fixedly connected to the upper end of the test base (1). A telescopic ejection mechanism (2) is provided in the center of the cavity (7). The ejection mechanism (2) includes a guide rod (8), an ejection spring (9), and a fastening seat. (10) The fastening seat (10) is fixedly connected to the top of the guide rod (8). The fastening seat (10) has a fastening step (11) on its surface. The guide rod (8) and the test base (1) are connected by a guide hole (12). The guide rod (8) is embedded in the guide hole (12) and slidably connected to the guide hole (12). The ejection spring (9) is fixedly connected to the bottom of the guide rod (8). The bottom of the test base (1) is fixedly connected to a torque sensor (13).

2. The high-speed bearing friction torque detection device according to claim 1, characterized in that: The cover (5) has a through hole (14) in the center, and the cover (5) and the top of the cavity (7) are fastened together.

3. The high-speed bearing friction torque detection device according to claim 1, characterized in that: The upper surface of the cover (5) is provided with a ring-shaped distribution of positioning holes (15), and an elastic element (16) is provided between the positioning holes (15) and the test seat (3).

4. The high-speed bearing friction torque detection device according to claim 1, characterized in that: The guide rod (8) has an arc-shaped keyway (17) on its side wall, and a limiting pad (18) is fixedly connected to the surface of the guide hole (12). The limiting pad (18) has an arc-shaped convex key (19) at its center.

5. The high-speed bearing friction torque detection device according to claim 1, characterized in that: The surface of the snap-fit ​​step (11) is fitted with a bushing (20), and the inner wall of the bushing (20) is provided with a raised spline (21).

6. The high-speed bearing friction torque detection device according to claim 1, characterized in that: A threaded sleeve (23) is fixedly connected to the upper surface of the pressing seat (6), and the test seat (3) is threadedly connected to the pressing seat (6).

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