A bearing crown measurement device

By using a segmented screw rod and locking nut structure, the problem of disassembling the bearing convexity measuring device when replacing bearings of different sizes is solved, enabling tool-free quick disassembly of bearing sleeves and improving operational convenience and efficiency.

CN224552709UActive Publication Date: 2026-07-24DENA JIANGSU BEARING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DENA JIANGSU BEARING CO LTD
Filing Date
2025-12-19
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing bearing crown measuring devices require bolt removal when replacing bearings of different sizes, which is difficult to do without portable tools, resulting in inconvenience in operation.

Method used

A bearing crown measuring device was designed, which adopts a segmented screw rod and locking nut structure. The stability is enhanced by threaded connection and nylon rubber ring, which enables quick disassembly of bearing sleeves without tools.

Benefits of technology

This enables quick and convenient replacement of bearing sleeves without tools, improving the operational flexibility and efficiency of the measuring device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bearing convexity measuring device, wherein bearing vibration detector is provided with the chassis on, one side center position fixed connection screw rod no.
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Description

Technical Field

[0001] This utility model belongs to the field of bearing technology, and specifically relates to a bearing crown measuring device. Background Technology

[0002] Bearings are core components in mechanical equipment used to support rotating shafts or moving parts. Their basic function is to convert sliding friction between moving parts into rolling friction through internal rolling elements (such as balls and rollers) and inner and outer raceways. This allows for precise positioning of rotating parts, bearing radial or axial loads, and significantly reducing frictional resistance and energy loss. As the "joints" of modern industry, bearings are crucial standard components ensuring the efficient, smooth, and precise operation of machinery.

[0003] Accurate and reliable crown measurement is an indispensable part of producing high-performance, long-life bearings, directly determining the bearing's performance under complex loads. For bearing manufacturers and high-end users (such as wind power, high-speed rail, and precision machine tools), this is a critical process parameter that must be strictly controlled.

[0004] Current bearing vibration testing instruments collect and analyze the crown of bearings using probes and data acquisition devices. However, bearings vary in size, and when measuring different bearings, it is necessary to change the matching bearing sleeve and remove the bolts. If the tools are not available, it is difficult to disassemble them. This phenomenon has become a problem that urgently needs to be solved by people in this field. Utility Model Content

[0005] The purpose of this invention is to address the problems mentioned in the background art by referring to an existing bearing crown measuring device.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a bearing crown measuring device, including a bearing vibration detector, a chassis is provided on the bearing vibration detector, a screw rod is fixedly connected to the center position of one side of the chassis, and a boss is fixedly connected to the other end of the screw rod. The boss is 180° sector-shaped, and both the boss and the first half of the screw rod are threaded. The boss and the screw rod are threadedly connected to a locking nut.

[0007] The present invention further explains that the bearing vibration detector includes a bearing sleeve, which includes a first cylinder and a second cylinder. The diameter of the first cylinder is smaller than that of the second cylinder, and a bearing is slidably connected to the first cylinder.

[0008] This utility model further illustrates that a screw rod is fixedly connected to one side of the second cylinder, and a boss is fixedly connected to the other end of the second screw rod. The second boss is a 120° sector shape. The screw rod and the second boss are provided with connecting threads. The second boss is the same length as the first boss. One side of the second boss is fixedly connected to one side of the first boss. The total length of the screw rod and the second boss is shorter than the length of the locking nut. The locking nut is threadedly connected to the second boss and the second screw rod.

[0009] The present invention further describes that grooves are provided on both sides of the locking nut, and nylon rubber rings are provided in the grooves.

[0010] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: By setting a segmented screw rod and a locking nut, the screw rod is made into a complete screw rod, which will not loosen during use. The bearing sleeve can be removed without tools during disassembly, which is convenient and quick. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a utility model Figure 1 A magnified view of a portion of region A in the middle; Figure 3 This is a utility model Figure 2 Exploded view; Figure 4 This is a utility model Figure 2 Post-explosion view; Figure 5 This is a utility model Figure 2 Side view; Figure 6 This is a utility model Figure 3 A magnified view of a portion of region B in the middle; Figure 7 This is a utility model Figure 5 Enlarged section view of region C in the middle; Figure 8 This is a utility model Figure 2 Explosion side view; In the diagram: 1. Bearing vibration detector; 2. Bearing; 3. Chassis; 4. Locking nut; 5. Bearing sleeve; 6. Screw rod one; 7. Screw rod two; 8. Nylon rubber ring; 9. Boss one; 10. Boss two; 11. Cylinder one; 12. Cylinder two. Detailed Implementation

[0012] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0013] Please see Figure 1-8 The present invention provides a technical solution: a bearing crown measuring device, including a bearing vibration detector 1.

[0014] It should be added that the bearing vibration detector 1 is existing technology and will not be described in detail.

[0015] A chassis 3 is installed on the bearing vibration detector 1. A screw rod 6 is fixedly connected to the center of one side of the chassis 3. A boss 9 is fixedly connected to the other end of the screw rod 6. The boss 9 is a 180° sector shape. Both the boss 9 and the front half of the screw rod 6 are threaded. The boss 9 and the screw rod 6 are threadedly connected to a locking nut 4.

[0016] The locking nut 4 has grooves on both sides, and nylon rubber rings 8 are placed in the grooves.

[0017] The bearing vibration detector 1 includes a bearing sleeve 5, which includes a first cylinder 11 and a second cylinder 12. The diameter of the first cylinder 11 is smaller than that of the second cylinder 12, and a bearing 2 is slidably connected on the first cylinder 11.

[0018] One side of cylinder 212 is fixedly connected to screw rod 27, and the other end of screw rod 27 is fixedly connected to boss 210. The second boss 10 is a 120° sector shape. The screw rod 7 and the second boss 10 are connected by a through thread. The second boss 10 has the same length as the first boss 9. One side of the second boss 10 is fixedly connected to one side of the first boss 9. The total length of the screw rod 7 and the second boss 10 is shorter than the length of the locking nut 4. The locking nut 4 is threadedly connected to the second boss 10 and the screw rod 7.

[0019] Working principle: The operator inserts bearing 2 into the matching bearing sleeve 5, and the probe and data acquisition device on the bearing vibration detector 1 begin to measure values.

[0020] When the size of the bushing is different, the matching bearing sleeve 5 needs to be replaced. Turn off the bearing vibration detector 1, the operator holds the bearing sleeve 5, and the side of the boss 2 10 and the boss 1 9 are tightly pressed together. Turn the locking nut 4 counterclockwise to remove the bearing sleeve 5.

[0021] When replacing bearing sleeve 5, one side of boss 2 10 should be moved down along the side of boss 1 9 to the top of boss 2 10 and attached to the top of screw rod 1 6. Then, turn the lock nut 4 clockwise to the appropriate position.

[0022] During the operation of the bearing vibration detector 1, a nylon rubber ring 8 is first installed on the locking nut 4 to increase friction and prevent the locking nut 4 from moving. At the same time, screw rod 1 6 is fixedly connected to boss 1 9, and screw rod 2 7 is fixedly connected to boss 2 10. This structure is a screw lock, which allows the locking nut 4 to be rotated clockwise to lock. When the locking nut 4 is rotated counterclockwise, the threads on boss 2 10 and boss 1 9 will be misaligned, making the locking nut 4 unable to rotate. At the same time, the nylon rubber ring 8 is installed on the locking nut 4 to lock screw rod 1 6 and screw rod 2 7, keeping them stable.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model, 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, and therefore should not be construed as a limitation of this utility model.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A bearing crown measuring device, comprising a bearing vibration detector (1), characterized in that: The bearing vibration detector (1) is equipped with a chassis (3). A screw rod (6) is fixedly connected to the center of one side of the chassis (3). A boss (9) is fixedly connected to the other end of the screw rod (6). The boss (9) is a 180° fan shape. The first half of the boss (9) and the screw rod (6) are both threaded. The boss (9) and the screw rod (6) are threaded together with a lock nut (4).

2. The bearing crown measuring device according to claim 1, characterized in that: The bearing vibration detector (1) includes a bearing sleeve (5), which includes a first cylinder (11) and a second cylinder (12). The diameter of the first cylinder (11) is smaller than that of the second cylinder (12), and a bearing (2) is slidably connected on the first cylinder (11).

3. The bearing crown measuring device according to claim 2, characterized in that: One side of the cylinder two (12) is fixedly connected to the screw rod two (7), and the other end of the screw rod two (7) is fixedly connected to the boss two (10). The boss two (10) is a 120° sector. The screw rod two (7) and the boss two (10) are provided with connecting threads. The boss two (10) has the same length as the boss one (9). One side of the boss two (10) is fixedly connected to one side of the boss one (9). The total length of the screw rod two (7) and the boss two (10) is shorter than the length of the locking nut (4). The locking nut (4) is threadedly connected to the boss two (10) and the screw rod two (7).

4. The bearing crown measuring device according to claim 3, characterized in that: The locking nut (4) has grooves on both sides, and nylon rubber rings (8) are provided in the grooves.