Radial loading deformation measuring device for nonmetal retainer

Abstract

A non-metal retainer radial loading deformation measuring device comprises a base and a baffle fixedly arranged on the base, a mounting frame is slidably arranged on the base, a testing area used for containing a retainer is formed between the mounting frame and the baffle, the mounting frame can extrude the retainer in the process of sliding towards the baffle, and the position of the mounting frame can be fixed. A pressure sensor used for sensing extrusion force and at least one distance measuring sensor are arranged on the mounting frame, the distance measuring sensor is used for measuring the distance between the mounting frame and the baffle, and the pressure sensor and the distance measuring sensor are jointly and electrically connected with a processor. According to the utility model, the reliability of radial loading deformation measurement of the non-metal retainer is improved.

Description

Technical Field

[0001] This utility model relates to the field of radial load deformation testing technology for non-metallic cages, specifically a device for measuring radial load deformation of non-metallic cages. Background Technology

[0002] In bearings, the cage plays a crucial role. Non-metallic cages are a commonly used type of cage. They not only constrain the posture of the rolling elements within the bearing, ensuring their uniform distribution and stable operation, but also provide necessary supplementary lubrication due to their material properties, thus significantly improving bearing efficiency and service life. Especially in high-precision fields such as aerospace and weaponry, where complex operating conditions and limited supplementary lubrication options exist, non-metallic cages have gained widespread application due to their unique self-lubricating properties, lightweight nature, and corrosion resistance.

[0003] However, during bearing operation, the cage is dragged by the rolling elements and rotates at high speed around the bearing's central axis. During this dynamic process, depending on the guiding method, the cage will inevitably collide with the bearing's inner ring, outer ring, or steel balls probabilistically and irregularly. Since the elastic modulus of non-metallic materials is significantly lower than that of metallic materials, the deformation generated during these collisions is relatively larger. This may adversely affect the bearing's operational accuracy, stability, and fatigue life performance.

[0004] Currently, research on the radial loading-deformation characteristics of non-metallic cages mainly relies on simulation calculations. Researchers construct complex dynamic models to simulate the radial impact force between the cage and the bearing rings during operation, and combine this with material mechanical properties for deformation analysis. However, relying solely on simulation calculations has significant limitations: the lack of effective experimental methods to accurately measure the deformation of non-metallic cages under actual radial load conditions makes it difficult to obtain reliable experimental data to verify the simulation results. Utility Model Content

[0005] To address the limitations of existing technologies that rely on simulation calculations to study the radial loading-deformation characteristics of non-metallic cages, this invention provides a device for measuring the radial loading deformation of non-metallic cages, thereby improving the reliability of measuring the radial loading deformation of non-metallic cages.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a non-metallic cage radial loading deformation measuring device, including a base and a baffle fixedly mounted on the base, a mounting frame slidably mounted on the base, a test area for accommodating the cage is formed between the mounting frame and the baffle, the mounting frame can compress the cage during sliding towards the baffle, and the position of the mounting frame can be fixed, the mounting frame is provided with a pressure sensor for sensing the compressive force and at least one distance sensor, the distance sensor is used to measure the distance between the mounting frame and the baffle, and the pressure sensor and the distance sensor are electrically connected to a processor.

[0007] As a further optimization of the radial loading deformation measuring device for a non-metallic cage, the base is provided with a through groove and a slide, a lead screw is provided in the through groove, and the axial direction of the lead screw is consistent with the extension direction of the slide. The mounting bracket is engaged with the lead screw by a ball nut.

[0008] As a further optimization of the radial loading deformation measuring device for a non-metallic cage according to the utility model: the mounting frame includes a mounting rod and a mounting block that are fixedly connected. The mounting rod is disposed outside the through groove and parallel to the baffle. The mounting block is disposed inside the through groove. The pressure sensor and the distance sensor are both disposed on the mounting rod. The mounting block has a through hole for mounting the ball nut.

[0009] As a further optimization of the radial loading deformation measuring device for a non-metallic cage according to the utility model: the mounting rod includes a first rod body and a second rod body that are perpendicular to each other and fixedly connected, the pressure sensor is disposed on the first rod body, and the distance sensor is disposed on the second rod body.

[0010] As a further optimization of the radial loading deformation measuring device for a non-metallic cage according to the utility model: a first strip groove is provided on the first rod body, and the length direction of the first strip groove is consistent with the length direction of the first rod body, and the pressure sensor is set in the first strip groove.

[0011] As a further optimization of the radial loading deformation measuring device for a non-metallic cage according to the utility model: a second strip groove is provided on the second rod, and the length direction of the second strip groove is consistent with the length direction of the second rod, and the distance sensor is set in the second strip groove.

[0012] As a further optimization of the radial loading deformation measuring device for a non-metallic cage according to the utility model: a data processing module is provided on the bottom wall of the through groove, and a display screen is provided on the base. Both the data processing module and the display screen are electrically connected to the processor.

[0013] As a further optimization of the radial loading deformation measuring device for a non-metallic cage according to the utility model: a handwheel is connected to the part of the lead screw that passes through the through groove.

[0014] As a further optimization of the radial loading deformation measuring device for a non-metallic cage according to the utility model, a lever is provided on the handwheel.

[0015] As a further optimization of the radial loading deformation measuring device for a non-metallic cage according to the utility model: a reinforcing plate is provided on the baffle, and when the mounting bracket squeezes the cage, the cage contacts the reinforcing plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention improves the reliability of radial load deformation measurement of non-metallic cages by setting a base and a baffle fixed on the base, and slidably mounting a bracket on the base. A test area for accommodating the cage is formed between the mounting bracket and the baffle. The mounting bracket can compress the cage as it slides toward the baffle, and the position of the mounting bracket can be fixed. When the cage reaches a predetermined pressure level, its radial force and deformation are recorded, and the mounting bracket is stopped to fix its position. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the mounting rod and mounting block of this utility model;

[0020] Figure 3 This is the front view of this utility model;

[0021] Figure 4 This is the left view of this utility model;

[0022] The markings in the diagram are: 1. Base, 2. Slide rail, 3. Through groove, 4. Lead screw, 5. Mounting bracket, 6. Retainer, 7. Pressure sensor, 8. Distance sensor, 9. Test area, 10. Display screen, 11. Baffle, 12. First rod, 13. First strip groove, 14. Second rod, 15. Second strip groove, 16. Mounting block, 17. Through hole, 18. Data processing module, 19. Reinforcing plate, 20. Handwheel, 21. Lever. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below with reference to specific embodiments. Parts not described or disclosed in detail in the following embodiments of this utility model should be understood as prior art known or should be known by those skilled in the art, such as the model of the lead screw 4, the model of the ball nut, how the lead screw 4 and the ball nut are matched, the model of the pressure sensor 7, the model of the distance sensor 8, the working principle of the data processing module 18 and the processor, and the model of the display screen 10, etc.

[0024] Example 1

[0025] A device for measuring radial loading deformation of a non-metallic cage, such as Figure 1 As shown, the device includes a base 1 and a baffle 11 fixedly mounted on the base 1. A mounting bracket 5 is slidably mounted on the base 1. A test area 9 for accommodating a retainer 6 is formed between the mounting bracket 5 and the baffle 11. The mounting bracket 5 can compress the retainer 6 during its sliding motion toward the baffle 11, and the position of the mounting bracket 5 can be fixed. The mounting bracket 5 is provided with a pressure sensor 7 for sensing the compressive force and at least one distance sensor 8. The distance sensor 8 is used to measure the distance between the mounting bracket 5 and the baffle 11. The pressure sensor 7 and the distance sensor 8 are electrically connected to a processor.

[0026] When testing the radial load deformation of the non-metallic retainer 6, the retainer 6 is first precisely placed at the center of the test area 9. Then, the mounting bracket 5 is moved at a uniform speed to gradually apply pressure to the retainer 6. When the retainer 6 reaches a predetermined pressure level, its radial force and deformation are recorded, and the movement of the mounting bracket 5 is stopped to fix its position. If subsequent tests are required, the mounting bracket 5 can be moved again. The methods by which the pressure sensor 7 senses the compressive force, the method by which the distance sensor 8 measures the distance between the mounting bracket 5 and the baffle 11, and the method by which the processor is electrically connected to the pressure sensor 7 and the distance sensor 8 are all conventional prior art in the field and will not be elaborated upon further here.

[0027] The above are the basic embodiments of this utility model. Further improvements, optimizations, and limitations can be made based on the above to obtain the following embodiments:

[0028] Example 2

[0029] This embodiment is an improvement on embodiment 1. Its main structure is the same as that of embodiment 1, but the improvement lies in: [The following is a more detailed description of the improvement.] Figure 2As shown, to ensure uniform movement of the mounting bracket 5, the base 1 has a connecting slot 3 and a slide rail 2. A lead screw 4 is installed in the slot 3, with its axial direction aligned with the extension direction of the slide rail 2. The mounting bracket 5 engages with the lead screw 4 via a ball nut. When the lead screw 4 rotates, the engaging ball nut moves accordingly on the lead screw 4. This movement causes the mounting bracket 5 to move synchronously along the axis of the lead screw 4. The alignment of the lead screw 4's axial direction with the extension direction of the slide rail 2 ensures smooth movement of the mounting bracket 5 without any obstruction or deviation.

[0030] Example 3

[0031] This embodiment is an improvement on embodiment 2. Its main structure is the same as that of embodiment 2, but the improvement lies in: [The following is a more detailed description of the improvement.] Figure 1 and Figure 2 As shown, the mounting bracket 5 includes a fixedly connected mounting rod and a mounting block 16. The mounting rod is located outside the through groove 3 and parallel to the baffle 11. The mounting block 16 is located inside the through groove 3. The pressure sensor 7 and the distance sensor 8 are both mounted on the mounting rod. The mounting block 16 has a through hole 17 for mounting the ball nut. In this embodiment, two distance sensors 8 are used, located on the left and right sides of the retainer 6 respectively, which enables mutual verification of data and further improves test accuracy.

[0032] The mounting rod is designed to be parallel to the baffle 11 to ensure that the pressure sensor 7 mounted on it is also parallel to the baffle 11. This layout ensures the accuracy and reliability of the pressure sensor 7 during testing.

[0033] The ball nut is installed inside the through hole 17, and its outer surface is fixedly connected to the inner wall of the through hole 17, ensuring that the ball nut can stably drive the mounting block 16 during movement. As the mounting block 16 moves, the mounting rod also moves, thereby driving the pressure sensor 7 on the mounting rod to move synchronously, so as to achieve accurate pressure testing.

[0034] Example 4

[0035] This embodiment is an improvement on embodiment 3. Its main structure is the same as that of embodiment 3, but the improvement lies in: [The following is a more detailed description of the improvement.] Figure 1 and Figure 2As shown, the mounting rod includes a first rod body 12 and a second rod body 14 that are perpendicular to each other and fixedly connected. The pressure sensor 7 is disposed on the first rod body 12, and the distance sensor 8 is disposed on the second rod body 14. A first strip groove 13 is formed on the first rod body 12, and the length direction of the first strip groove 13 is consistent with the length direction of the first rod body 12. The pressure sensor 7 is disposed in the first strip groove 13. A second strip groove 15 is formed on the second rod body 14, and the length direction of the second strip groove 15 is consistent with the length direction of the second rod body 14. The distance sensor 8 is disposed in the second strip groove 15.

[0036] The length of the first rod 12 is aligned with the vertical direction of the base 1. The pressure sensor 7 is designed to slide within the first slot 13 for precise position adjustment. Once in the appropriate position, the pressure sensor 7 is fixed to ensure continuous contact with the retainer 6 during the movement of the mounting bracket 5 and to accurately sense the compressive force applied by the mounting bracket 5 to the retainer 6.

[0037] The length direction of the second rod 14 is aligned with the horizontal direction of the base 1. The distance sensor 8 is designed to slide within the second slot 15 for necessary position adjustments. Once adjusted to the appropriate position, the distance sensor 8 is fixed to ensure accurate measurement of the distance between the mounting bracket 5 and the baffle 11 during the movement of the mounting bracket 5.

[0038] Example 5

[0039] This embodiment is an improvement on embodiment 2. Its main structure is the same as that of embodiment 2, but the improvement lies in: [The following is a more detailed description of the improvement.] Figure 3 and Figure 4 As shown, a data processing module 18 is installed on the bottom wall of the through groove 3, and a display screen 10 is installed on the base 1. Both the data processing module 18 and the display screen 10 are electrically connected to the processor. The data processing module 18 monitors and records the measurement data of the pressure sensor 7 and the distance sensor 8 in real time, and the display screen can display the values ​​of the force and deformation of the cage 6 in real time, which is convenient for operators to obtain test data.

[0040] Example 6

[0041] This embodiment is an improvement on embodiment 2. Its main structure is the same as that of embodiment 2, but the improvement lies in: [The following is a more detailed description of the improvement.] Figure 3 As shown, a handwheel 20 is connected to the portion of the lead screw 4 that passes through the through groove 3, facilitating the operator's rotation of the lead screw 4. A lever 21 is provided on the handwheel 20 to further facilitate the operator's operation.

[0042] Example 7

[0043] This embodiment is an improvement on embodiment 1. Its main structure is the same as that of embodiment 1, but the improvement lies in: [The following is a more detailed description of the improvement.] Figure 1 As shown, to enhance the blocking effect of the baffle 11, a reinforcing plate 19 is provided on the baffle 11. When the mounting bracket 5 presses against the retainer 6, the retainer 6 comes into contact with the reinforcing plate 19. This prevents the mounting bracket 5 from damaging the reinforcing plate 19 when it presses against the retainer 6.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A non-metallic cage radial load deflection measurement device characterized by: The device includes a base (1) and a baffle (11) fixedly mounted on the base (1). A mounting bracket (5) is slidably mounted on the base (1). A test area (9) for accommodating a retainer (6) is formed between the mounting bracket (5) and the baffle (11). The mounting bracket (5) can squeeze the retainer (6) during the sliding process towards the baffle (11), and the position of the mounting bracket (5) can be fixed. The mounting bracket (5) is provided with a pressure sensor (7) for sensing the squeezing force and at least one distance sensor (8). The distance sensor (8) is used to measure the distance between the mounting bracket (5) and the baffle (11). The pressure sensor (7) and the distance sensor (8) are electrically connected to a processor.

2. A non-metallic cage radial load deflection measurement device as claimed in claim 1, wherein: The base (1) has a through groove (3) and a slide (2) that are connected to each other. A lead screw (4) is installed in the through groove (3), and the axial direction of the lead screw (4) is consistent with the extension direction of the slide (2). The mounting bracket (5) is engaged with the lead screw (4) by ball nuts.

3. A non-metallic cage radial load deflection measurement device as claimed in claim 2, wherein: The mounting bracket (5) includes a mounting rod and a mounting block (16) that are fixedly connected. The mounting rod is located outside the through groove (3) and parallel to the baffle (11). The mounting block (16) is located inside the through groove (3). The pressure sensor (7) and the distance sensor (8) are both located on the mounting rod. The mounting block (16) has a through hole (17) for mounting the ball nut.

4. The non-metallic cage radial load deflection measurement device of claim 3, wherein: The mounting rod includes a first rod body (12) and a second rod body (14) that are perpendicular to each other and fixedly connected. The pressure sensor (7) is mounted on the first rod body (12), and the distance sensor (8) is mounted on the second rod body (14).

5. A non-metallic cage radial load deflection measurement device as claimed in claim 4, wherein: The first rod (12) has a first groove (13) and the length direction of the first groove (13) is consistent with the length direction of the first rod (12). The pressure sensor (7) is disposed in the first groove (13).

6. The non-metallic cage radial load deflection measurement device of claim 4, wherein: The second rod (14) has a second strip groove (15) and the length direction of the second strip groove (15) is consistent with the length direction of the second rod (14). The distance sensor (8) is set in the second strip groove (15).

7. The non-metallic cage radial load deflection measurement device of claim 2, wherein: A data processing module (18) is provided on the bottom wall of the through groove (3), and a display screen (10) is provided on the base (1). Both the data processing module (18) and the display screen (10) are electrically connected to the processor.

8. The non-metallic cage radial load deflection measurement device of claim 2, wherein: The part of the lead screw (4) that passes through the through groove (3) is connected to a handwheel (20).

9. The non-metallic cage radial load deflection measurement device of claim 8, wherein: The handwheel (20) is equipped with a lever (21).

10. The non-metallic cage radial load deflection measurement device of claim 1, wherein: A reinforcing plate (19) is provided on the baffle (11). When the mounting bracket (5) squeezes the retainer (6), the retainer (6) comes into contact with the reinforcing plate (19).

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