Testing device for bearing

Abstract

The utility model is suitable for the technical field of bearing testing, and provides a testing device for a bearing, which comprises a base; the driving motor is fixed at the central position in the base through a bolt; the rotating rod is fixed at the output end of the driving motor; the spring steel sheet and the bearing supporting ring are welded to the outer side wall of the rotating rod, and the spring steel sheet is located above the bearing supporting ring; the infrared receiver and the brake ring sleeve are fixed to the position, close to the lower portion of the bearing supporting ring, of the outer side wall of the rotating rod, and the infrared receiver is located between the bearing supporting ring and the brake ring sleeve; the smoothness of the bearing can be detected by testing the time required from starting to stopping after the outer ring and the inner ring of the bearing rotate relatively, so that the outer ring and the inner ring of the bearing are in precise fit with a ball, the bearing is ensured to meet the standard, the rotating speed of a rotating rod can be intervened by utilizing the mutual fit between a brake pad and a brake ring sleeve, and the stability of the bearing is improved. Therefore, the rotation time of the rotating rod is reduced, and the test speed is improved.

Description

Technical Field

[0001] This utility model belongs to the field of bearing testing technology, and in particular relates to a bearing testing device. Background Technology

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support rotating mechanical parts, reduce the coefficient of friction during their movement, and ensure their rotational accuracy.

[0003] Since bearings consist of an outer ring, an inner ring, and balls, their smoothness needs to be tested after machining and assembly or after a period of use to ensure that the bearings meet the standards and to avoid affecting the smoothness of the bearing rotation and frictional resistance.

[0004] Therefore, a testing device for bearings is proposed. Utility Model Content

[0005] This invention provides a bearing testing device to solve the above-mentioned problems.

[0006] This utility model is implemented as follows: a bearing testing device includes: a base; a drive motor fixed to the center of the base by bolts; a rotating rod fixed to the output end of the drive motor; a spring steel sheet and a bearing support ring welded to the outer wall of the rotating rod, the spring steel sheet being located above the bearing support ring; an infrared receiver and a brake ring sleeve fixed to the outer wall of the rotating rod near the lower part of the bearing support ring, the infrared receiver being located between the bearing support ring and the brake ring sleeve; four fixing plates symmetrically fixed to the top of the base by bolts; electric push rods respectively fixed to one side of the outer wall of the four fixing plates by bolts; a pressing head fixed to the output end of the electric push rod; an infrared emitter embedded and fixed to the other side of the outer wall of one of the fixing plates; a servo motor fixed to the outer wall of the base by bolts; a ball screw fixed to the output end of the servo motor; a brake pad fixed to the outer wall of the ball screw by screws; and an electrical control box fixed to the top of the base near the fixing plate by bolts.

[0007] Preferably, the bottom of the base has a recess for mounting a drive motor, and the rotating rod passes through the top of the base.

[0008] Preferably, the cross-section of the spring steel sheet is arc-shaped, and a total of four spring steel sheets are provided, which are symmetrically arranged on the outer side wall of the rotating rod.

[0009] Preferably, the infrared receiver and the infrared transmitter are on the same horizontal plane.

[0010] Preferably, the brake pad and the base are slidably connected by a slider and a groove, and the top of the base has a cavity for the ball screw to rotate.

[0011] Preferably, a rounded chamfer is provided on one side of the outer wall of the extrusion head.

[0012] Preferably, the electrical control box is equipped with a controller and a timer, and a display screen is embedded in the top of the electrical control box.

[0013] Compared with the prior art, the embodiments of this application have the following main advantages:

[0014] By testing the time required for the outer and inner rings of a bearing to rotate relative to each other from start to stop, the smoothness of the bearing can be detected, thus ensuring that the outer ring, inner ring, and balls of the bearing are in a precise fit, ensuring that the bearing meets the standards. By utilizing the mutual cooperation between the brake pads and brake ring sleeves, the rotation speed of the rotating rod can be intervened, thereby reducing the rotation time of the rotating rod and increasing the testing speed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the exploded rotating rod of this utility model;

[0017] Figure 3 This is a schematic diagram of the base structure of this utility model;

[0018] Figure 4 This is a utility model Figure 1 Enlarged view of point A in the image.

[0019] In the diagram: 1. Base; 2. Drive motor; 3. Rotating rod; 4. Spring steel sheet; 5. Bearing support ring; 6. Infrared receiver; 7. Brake ring sleeve; 8. Fixing plate; 9. Electric push rod; 10. Extrusion head; 11. Infrared transmitter; 12. Servo motor; 13. Ball screw; 14. Brake pad; 15. Electrical control box. Detailed Implementation

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] This utility model provides a bearing testing device, such as... Figure 1-4 As shown, the system includes a base 1. A drive motor 2 is bolted to the center of the base 1. A recess for mounting the drive motor 2 is located at the bottom of the base 1. A rotating rod 3 is fixedly connected to the drive motor 2 via its output end on one side. The rotating rod 3 passes through the top of the base 1. A spring steel sheet 4 and a bearing ring 5 are welded to the outer wall of the rotating rod 3. The spring steel sheet 4 is located above the bearing ring 5. An infrared receiver 6 and a brake ring sleeve 7 are fixedly installed on the outer wall of the rotating rod 3 near the lower part of the bearing ring 5. The infrared receiver 6 is located between the bearing ring 5 and the brake ring sleeve 7. Four fixing plates 8 are bolted to the top of the base 1. An electric push rod 9 is bolted to the outer wall of one side of each of the four fixing plates 8. The electric push rod 9... An extrusion head 10 is fixedly connected to one of the output ends. An infrared transmitter 11 is embedded and fixed on the outer wall of the other side of one of the fixing plates 8, near the infrared receiver 6. A servo motor 12 is fixedly connected to one side of the outer wall of the base 1 by bolts. A ball screw 13 is fixedly connected to the output end of the servo motor 12. A brake pad 14 is fixedly connected to the nut seat on the ball screw 13 by screws. The brake pad 14 and the base 1 are slidably connected by a slider and a groove. A cavity is opened on the top of the base 1 for the ball screw 13 to rotate. An electric control box 15 is fixedly connected to the top of the base 1 near the fixing plate 8 by bolts. The electric control box 15 contains a controller and a timer, and a display screen is embedded on the top of the electric control box 15.

[0023] It should be noted that since the bearing consists of an outer ring, an inner ring, and balls, its smoothness needs to be tested after the bearing is assembled or after a period of use to ensure that the bearing meets the standards and to avoid affecting the smoothness and frictional resistance during bearing rotation. In this embodiment, the smoothness of the bearing can be tested by testing the time required for the outer ring and inner ring to rotate relative to each other from start to stop. This ensures that the outer ring, inner ring, and balls of the bearing are in a precise fit, ensuring that the bearing meets the standards. By utilizing the mutual cooperation between the brake pad 14 and the brake ring sleeve 7, the rotation speed of the rotating rod 3 can be intervened, thereby reducing the rotation time of the rotating rod 3 and increasing the test speed.

[0024] Specifically, in this embodiment, the solution mainly includes a rotating rod 3, a pressing head 10, and a brake ring sleeve 7. When testing the bearing, the bearing is sleeved on the rotating rod 3, with the inner ring of the bearing sleeved on the outer side of the rotating rod 3. Under the pressing and rebounding force of the spring steel sheet 4, the inner ring of the bearing is fixed to the outer wall of the rotating rod 3. At this time, the four electric push rods 9 are controlled to work synchronously. The electric push rods 9 drive the pressing head 10 to move through the output end on one side. After the pressing head 10 contacts the outer ring of the bearing, it clamps and fixes it. The outer ring of the bearing is in a fixed state. The drive motor 2 is controlled to drive the rotating rod 3 to rotate at high speed through the output end on one side. The inner ring of the bearing rotates synchronously at high speed. The infrared receiver 6 intermittently receives the infrared rays emitted by the infrared transmitter 11. According to the interval of the received infrared signals, the infrared receiver 6 receives the infrared rays emitted by the infrared transmitter 11. The rotational speed of the bearing inner ring is determined by the time interval. When the set speed is reached, the drive motor 2 stops working, and the bearing inner ring continues to rotate under the action of inertia. The smoothness of the bearing is judged by the time required for the bearing inner ring to come to a complete stop (the longer the time, the higher the smoothness of the bearing, and the shorter the time, the lower the smoothness of the bearing). Of course, the rotation time of the rotating rod 3 can also be reduced by the contact between the brake pad 14 and the brake ring sleeve 7, thereby increasing the test speed. Specifically, the servo motor 12 drives the ball screw 13 to rotate through the output end on one side. The brake pad 14 on the ball screw 13 moves on the base 1. After the brake pad 14 contacts the brake ring sleeve 7 (the moving distance of the brake pad 14 is set to a fixed value), the rotational speed of the rotating rod 3 is reduced rapidly by frictional resistance.

[0025] In a further preferred embodiment of this utility model, such as Figure 1-2 As shown, the cross-section of the spring steel sheet 4 is arc-shaped, and there are four spring steel sheets 4 in total, which are symmetrically arranged on the outer side wall of the rotating rod 3.

[0026] In this embodiment, the bearing inner ring is fixed to the outer wall of the rotating rod 3 by the compression and rebound force of the four spring steel plates 4 under the action of the bearing inner ring, so that the bearing inner ring rotates synchronously when the rotating rod 3 rotates.

[0027] In a further preferred embodiment of this utility model, such as Figure 1 As shown, the infrared receiver 6 and the infrared transmitter 11 are on the same horizontal plane.

[0028] In this embodiment, the infrared receiver 6 can receive the infrared rays emitted by the infrared transmitter 11, thereby detecting the rotational speed of the rotating rod 3.

[0029] In a further preferred embodiment of this utility model, such as Figure 1 and Figure 4 As shown, a rounded chamfer is provided on one side of the outer wall of the extrusion head 10.

[0030] In this embodiment, the rounded chamfer can reduce damage to the outer ring of the bearing.

[0031] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0032] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0033] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A testing device for bearings, characterized in that include: Base (1); The drive motor (2) is fixed to the center of the base (1) by bolts; Rotary rod (3) fixed to the output end of the drive motor (2); A spring steel sheet (4) and a bearing support ring (5) are welded to the outer wall of the rotating rod (3), with the spring steel sheet (4) located above the bearing support ring (5); An infrared receiver (6) and a brake ring sleeve (7) are fixed on the outer side wall of the rotating rod (3) near the bearing support ring (5) below it. The infrared receiver (6) is located between the bearing support ring (5) and the brake ring sleeve (7). Four fixing plates (8) are symmetrically fixed to the top of the base (1) by bolts; Electric push rods (9) are respectively fixed to the outer wall of one side of the four fixed plates (8) by bolts; The extrusion head (10) is fixed to the output end of the electric push rod (9); An infrared emitter (11) is embedded and fixed to the outer wall of the other side of one of the fixing plates (8); A servo motor (12) is fixed to the outer wall of the base (1) by bolts; A ball screw (13) fixed to the output end of the servo motor (12); Brake pads (14) are fixed to the outer wall of the ball screw (13) by screws; The electrical control box (15) is fixed to the top of the base (1) near the side of the fixing plate (8) by bolts.

2. A testing device for bearings as claimed in claim 1, characterized in that The base (1) has a recessed cavity at the bottom for mounting the drive motor (2), and the rotating rod (3) passes through the top of the base (1).

3. A bearing testing apparatus as set forth in claim 1 wherein, The cross-section of the spring steel sheet (4) is arc-shaped, and there are four spring steel sheets (4) in total. The four spring steel sheets (4) are symmetrically arranged on the outer side wall of the rotating rod (3).

4. A bearing testing apparatus as set forth in claim 1 wherein, The infrared receiver (6) and the infrared transmitter (11) are on the same horizontal plane.

5. A bearing testing apparatus as set forth in claim 1, wherein The brake pad (14) and the base (1) are slidably connected by a slider and a groove, and the top of the base (1) has a cavity for the ball screw (13) to rotate.

6. A bearing testing apparatus as set forth in claim 1, wherein The outer wall of one side of the extrusion head (10) is provided with a rounded chamfer.

7. A bearing testing apparatus as set forth in claim 1 wherein, The electrical control box (15) is equipped with a controller and a timer, and a display screen is embedded on the top of the electrical control box (15).

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