Measuring device for friction torque of bearing

Abstract

The utility model discloses a device for measuring the friction torque of a bearing, which comprises an operating platform and a bearing friction torque measuring instrument body arranged on the operating platform, a mounting seat is arranged on the operating platform, and one side of the bearing friction torque measuring instrument body is connected with a computer through a circuit. The upper end of the bearing friction torque measuring instrument body is vertically provided with a driving shaft, the lower end of the driving shaft is provided with an adjustable locking mechanism, the adjustable locking mechanism comprises a cover body, a chassis, a rotating disc, a shifting block, an adjusting rod, a sliding block and an arc-shaped contact plate, the cover body is fixed at the lower end of the driving shaft, and the surface of the cover body is provided with an adjusting groove; the chassis is fixed to the bottom of the cover body, and a mounting opening is formed in the middle of the chassis. The bearing friction torque measuring instrument is provided with the adjustable locking mechanism, adaptive adjustment can be carried out according to the specification of a bearing to be measured, replacement steps are reduced, and test operation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of bearing friction torque measurement technology, specifically a bearing friction torque measuring device. Background Technology

[0002] The current method for measuring bearing friction torque primarily utilizes a bearing friction torque measuring instrument. This instrument is a specialized device for measuring bearing friction torque. In mechanical systems, bearing friction torque refers to the resistance generated when a bearing rotates, typically caused by internal friction and sealing friction. The magnitude of bearing friction torque directly affects the energy efficiency and performance of the mechanical system. By measuring bearing friction torque, the operating condition, friction characteristics, and energy efficiency of the bearing can be evaluated, thereby optimizing the design and performance of the mechanical system. A bearing friction torque measuring instrument typically includes components such as sensors, a data acquisition system, and data analysis software. By installing sensors on the bearing, the friction torque during rotation is measured, and the data is transmitted to the data acquisition system for recording and analysis. The data analysis software helps users process and analyze the measurement data to derive the specific value and characteristics of the bearing friction torque. Bearing friction torque measuring instruments are widely used in engineering fields for studying bearing friction characteristics, verifying design parameters, evaluating bearing performance, and optimizing the energy efficiency of mechanical systems. By accurately measuring bearing friction torque, engineers and researchers can better understand and improve the performance and efficiency of mechanical systems. The instrument uses a servo motor to control the bearing speed, a torque sensor to measure the bearing friction torque, and a computer to control the entire measurement process, display and store the measurement results and torque curves.

[0003] However, existing bearing friction torque measuring instruments have the following problems during use: The instrument connects to the bearing under test mounted on the operating table via a drive shaft for testing. However, existing drive shafts generally have a fixed structure. When different sizes of bearings need to be installed, different drive shafts are often required to meet the testing needs, making the operation cumbersome. Therefore, a corresponding technical solution needs to be designed to address these technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a device for measuring the friction torque of a bearing. This device solves the problem that bearing friction torque measuring instruments connect to and drive the bearing to be tested, which is mounted on the operating table via a drive shaft. However, existing drive shafts generally have a relatively fixed structure. When different sizes of bearings need to be installed, different drive shafts often need to be replaced to meet the testing requirements, which is cumbersome.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bearing friction torque measuring device, comprising an operating table and a bearing friction torque measuring instrument body mounted on the operating table. The operating table is equipped with a mounting base. A computer is connected to one side of the bearing friction torque measuring instrument body via a wiring connection. A drive shaft is vertically arranged at the upper end of the bearing friction torque measuring instrument body. An adjustable locking mechanism is mounted at the lower end of the drive shaft. The adjustable locking mechanism includes a cover, a base, a rotating disk, a toggle block, an adjusting rod, a slider, and an arc-shaped contact plate. The cover is fixed to... The lower end of the drive shaft has an adjustment groove on its surface. The chassis is fixed to the bottom of the cover and has an installation port in the middle. The rotating disk is rotatably disposed in the installation port. The actuating blocks are divided into four groups and evenly distributed on the edge of the rotating disk. The adjustment rod is inserted into the adjustment groove, and the inner end of the adjustment rod is connected to the rotating disk. Four groups of guide grooves are evenly distributed around the periphery of the installation port. The slider is slidably disposed in the guide groove. The arc-shaped contact plate is fixed on the slider. A return spring is connected to the inner side of the slider. The return spring is built into the guide groove and its inner end is connected to the inner wall of the guide groove.

[0006] In a preferred embodiment of this utility model, the adjusting groove includes an arc-shaped main groove and several sets of slots formed below the arc-shaped main groove, the slots being used in conjunction with the adjusting rod.

[0007] In a preferred embodiment of this utility model, the adjusting rod includes a rod body whose inner end is connected to the rotating disk and a handle fixed to the outer end of the rod body. A card is fitted onto the rod body, and the lower end of the card has the same width as the inner diameter of the slot and the two work together.

[0008] In a preferred embodiment of this utility model, the actuating block has a fan-shaped structure with one end being narrower than the other, and the actuating block is in contact with the inner wall of the arc-shaped contact plate.

[0009] In a preferred embodiment of this utility model, the arc-shaped contact plate has an arc-shaped structure and its surface is formed with several sets of anti-slip strips, the anti-slip strips being strip-shaped structures with a central protrusion.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model improves the structure of the existing bearing friction torque measuring instrument by equipping the lower end of the drive shaft of the bearing friction torque measuring instrument with an adjustable locking mechanism. The specifications of the adjustable locking mechanism can be adjusted according to the bore diameter of the bearing to be tested and connected to the inner hole of the bearing to be tested, which greatly improves the versatility and flexibility of the drive shaft in use.

[0012] 2. The bearing friction torque measuring instrument designed in this utility model is equipped with a drive component that can adjust the speed of the drive shaft and apply different axial loads. Then, by acting on the bearing under test through the drive shaft, the bearing under test can be adjusted to different speeds and different axial loads, thereby achieving accurate measurement of the load friction torque. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of the present invention;

[0014] Figure 2 This is a structural diagram of the adjustable locking mechanism described in this utility model;

[0015] Figure 3 This is a bottom structural diagram of the adjustable locking mechanism described in this utility model.

[0016] In the diagram: 1. Operating table; 2. Bearing friction torque measuring instrument body; 4. Mounting base; 5. Computer; 6. Drive shaft; 7. Adjustable locking mechanism; 8. Cover; 9. Chassis; 10. Rotating disk; 11. Actuating block; 12. Adjusting rod; 13. Slider; 14. Arc-shaped contact plate; 15. Adjusting groove; 16. Mounting port; 17. Guide groove; 18. Return spring; 19. Arc-shaped main groove; 20. Card slot; 21. Rod body; 22. Handle; 23. Card; 24. Anti-slip strip. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-3This utility model provides a technical solution: a bearing friction torque measuring device, including an operating table 1 and a bearing friction torque measuring instrument body 2 mounted on the operating table 1. The bearing friction torque measuring instrument body 2 is a conventional bearing friction torque measuring instrument available on the market. The bearing friction torque measuring instrument body 2 is equipped with a drive assembly, which consists of a servo motor and a controller. The controller controls different rotational and steering adjustments of the servo motor drive shaft 6, thereby adjusting the drive shaft 6 to achieve different speed adjustments and apply different axial loads to the bearing under test, thus achieving accurate measurement of the bearing friction torque. The operating table 1 is equipped with a mounting base 4. A computer 5 is connected to one side of the bearing friction torque measuring instrument body 2 via a wiring connection. The drive shaft 6 is vertically arranged at the upper end of the bearing friction torque measuring instrument body 2, and a [missing information - likely a device name or component] is installed at the lower end of the drive shaft 6. The adjustable locking mechanism 7 includes a cover 8, a base 9, a rotating disk 10, a toggle block 11, an adjusting rod 12, a slider 13, and an arc-shaped contact plate 14. The cover 8 is fixed to the lower end of the drive shaft 6 and has an adjusting groove 15 on its surface. The base 9 is fixed to the bottom of the cover 8 and has an installation port 16 in the middle. The rotating disk 10 is rotatably disposed in the installation port 16. The toggle block 11 is divided into four groups and evenly distributed on the edge of the rotating disk 10. The adjusting rod 12 is inserted into the adjusting groove 15 and its inner end is connected to the rotating disk 10. Four sets of guide grooves 17 are evenly distributed around the periphery of the installation port 16. The slider 13 is slidably disposed in the guide groove 17. The arc-shaped contact plate 14 is fixed on the slider 13. A return spring 18 is connected to the inner side of the slider 13. The return spring 18 is built into the guide groove 17 and its inner end is connected to the inner wall of the guide groove 17.

[0019] Further improvements, such as Figure 3 As shown, the adjustment groove 15 includes an arc-shaped main groove 19 and several sets of slots 20 formed below the arc-shaped main groove 19. The slots 20 are used in conjunction with the adjustment rod 12 to facilitate the adjustment of the adjustment rod 12.

[0020] Further improvements, such as Figure 2 As shown, the adjusting rod 12 includes a rod body 21 whose inner end is connected to the rotating disk 10 and a handle 22 fixed to the outer end of the rod body 21. A card 23 is fitted on the rod body 21. The width of the lower end of the card 23 is the same as the inner diameter of the card slot 20 and the two work together. By adjusting the height of the card 23, the adjusting rod 12 and the rotating disk 10 can be locked and unlocked.

[0021] Further improvements, such as Figure 3 As shown, the actuating block 11 has a fan-shaped structure with one end being narrower than the other. The actuating block 11 contacts the inner wall of the arc-shaped contact plate 14. During rotation, the actuating block 11 can act on the arc-shaped contact plate 14, thereby enabling position adjustment of the arc-shaped contact plate 14.

[0022] Specifically, the arc-shaped contact plate 14 has an arc-shaped structure and several sets of anti-slip strips 24 are formed on its surface. The anti-slip strips 24 have a strip-shaped structure with a raised center. The arc-shaped contact plate 14 abuts against the inner hole of the bearing to be tested and the anti-slip strips 24 are used for contact-type limiting treatment to achieve the purpose of locking the bearing to be tested.

[0023] In use: When it is necessary to measure the friction torque of the bearing under test, the operator places the bearing under test on the mounting base 4, and then inserts the adjustable locking mechanism 7 at the lower end of the drive shaft 6 into the inner hole of the bearing under test. Then, the operator holds the adjusting rod 12 and drives the rotating disk 10 to rotate. During the rotation of the rotating disk 10, the actuating block 11 rotates synchronously. The actuating block 11 acts on the arc-shaped contact plate 14, causing the arc-shaped contact plate 14 to move outward. The arc-shaped contact plate 14 abuts against the inner hole of the bearing under test and uses the anti-slip strip 24 for contact-type limiting treatment, thereby achieving the purpose of locking the bearing under test. Then, by pulling down the card 23 and inserting it into the card slot 20, the adjusting rod 12 and the rotating disk 10 can be locked and positioned. The test data of the bearing friction torque measuring instrument body 2 is transmitted to the computer 5 for display. This structure can be adaptively adjusted according to the specifications of the bearing under test, reducing the replacement steps and facilitating the test operation.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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 device for measuring the frictional torque of a bearing, comprising an operating table (1) and a bearing frictional torque measuring instrument body (2) mounted on the operating table (1), wherein the operating table (1) is equipped with a mounting base (4), and a computer (5) is connected to one side of the bearing frictional torque measuring instrument body (2) via a circuit, characterized in that: The upper end of the bearing friction torque measuring instrument body (2) is vertically provided with a drive shaft (6), and the lower end of the drive shaft (6) is equipped with an adjustable locking mechanism (7). The adjustable locking mechanism (7) includes a cover (8), a chassis (9), a rotating disk (10), a toggle block (11), an adjusting rod (12), a slider (13), and an arc-shaped contact plate (14). The cover (8) is fixed to the lower end of the drive shaft (6) and has an adjusting groove (15) on its surface. The chassis (9) is fixed to the bottom of the cover (8) and has an installation port (16) in the middle. The rotating disk (10) is rotatably mounted on the installation port (16). Inside, the actuating blocks (11) are divided into four groups and evenly distributed on the edge of the rotating disk (10). The adjusting rod (12) is inserted into the adjusting groove (15). The inner end of the adjusting rod (12) is connected to the rotating disk (10). The periphery of the mounting port (16) is also evenly provided with four groups of guide grooves (17). The slider (13) is slidably disposed in the guide groove (17). The arc-shaped contact plate (14) is fixed on the slider (13). The inner side of the slider (13) is connected to a return spring (18). The return spring (18) is built into the guide groove (17) and its inner end is connected to the inner wall of the guide groove (17).

2. The bearing friction torque measuring device according to claim 1, characterized in that: The adjustment groove (15) includes an arc-shaped main groove (19) and several sets of slots (20) formed below the arc-shaped main groove (19). The slots (20) are used in conjunction with the adjustment rod (12).

3. The bearing friction torque measuring device according to claim 2, characterized in that: The adjusting rod (12) includes a rod body (21) whose inner end is connected to the rotating disk (10) and a handle (22) fixed to the outer end of the rod body (21). A card (23) is fitted on the rod body (21). The width of the lower end of the card (23) is the same as the inner diameter of the card slot (20) and the two are used together.

4. The bearing friction torque measuring device according to claim 1, characterized in that: The actuating block (11) has a fan-shaped structure and one end is narrower than the other end. The actuating block (11) is in contact with the inner wall of the arc-shaped contact plate (14).

5. The bearing friction torque measuring device according to claim 4, characterized in that: The arc-shaped contact plate (14) has an arc-shaped structure and a number of anti-slip strips (24) are formed on its surface. The anti-slip strips (24) have a strip-shaped structure with a raised center.

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