Outer spherical ball bearing with eccentric sleeve at one flat end

By designing a gravity ball to trigger an audible warning of wear and convenient lubrication monitoring, the problems of bearing wear warning and insufficient lubrication are solved, achieving stable operation and long service life of the equipment.

CN224229114UActive Publication Date: 2026-05-12LIAOCHENG JINYU OUTER SPHERICAL BEARING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIAOCHENG JINYU OUTER SPHERICAL BEARING CO LTD
Filing Date
2025-07-16
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The lack of an effective wear warning mechanism for existing bearings leads to equipment failure and shutdown when wear is severe. Furthermore, the reliance on manual, periodic lubrication maintenance lacks convenient monitoring methods, affecting equipment stability and reliability.

Method used

A flat-end eccentric sleeve outer spherical ball bearing was designed. The ball bearing emits a sound to indicate wear through a chain reaction caused by gravity, allowing for timely inspection. It also provides a convenient manual lubrication method to observe the remaining lubricating oil level and ensure timely replenishment.

Benefits of technology

It improves the ability to monitor bearing wear, prevents abnormal equipment operation, extends service life, and ensures equipment stability and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an insert ball bearing with a flat end and an eccentric bushing, relates to the technical field of ball bearings, and solves the problems that the existing bearing is generally lack of an effective wear early warning mechanism, the abnormal state of the bearing is difficult to perceive by a worker in time, and the problem is often found when equipment is shut down due to serious wear of the bearing. And the normal operation of the equipment is influenced. The utility model discloses an insert ball bearing with a flat end and an eccentric sleeve. The base is of a U-shaped base structure, a penetrating type circular through groove structure is formed in the front side of the base, and a penetrating type circular through groove structure is formed in the left side of the base. A fixed cylinder is fixedly arranged at the top of the base; a placement seat with an arc-shaped plate structure is fixedly arranged in the fixed cylinder; a gravity ball of a spherical structure is fixedly arranged on the inner side of the top of the containing base. The situation that equipment cannot operate normally or even is damaged due to excessive abrasion of the bearing is avoided, economic losses are effectively reduced, and stable operation of the equipment is guaranteed.
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Description

Technical Field

[0001] This utility model belongs to the field of ball bearing technology, and more specifically, it relates to a ball bearing with a flat end and an eccentric sleeve on the outer spherical surface. Background Technology

[0002] Eccentric sleeve spherical roller bearings are a special type of bearing that combines the self-aligning characteristics of spherical roller bearings with the unique function of eccentric sleeves. In industrial production and the operation of various mechanical equipment, eccentric sleeve spherical roller bearings with one flat end are widely used in various scenarios because their special structure can adapt to complex working conditions such as poor alignment between the shaft and the housing bore axis.

[0003] Current ball bearings still have the following shortcomings:

[0004] 1. After long-term operation, bearings are prone to wear. When the wear reaches a certain level, it will produce more serious vibration. However, existing bearings usually lack an effective wear warning mechanism, and it is difficult for staff to detect the abnormal condition of the bearing in time. The problem is often only discovered when the bearing wear is serious and the equipment fails and stops. This not only affects the normal operation of the equipment, but may also cause production interruption due to sudden equipment damage, resulting in significant economic losses.

[0005] 2. Regarding bearing lubrication and maintenance, traditional methods rely heavily on manual, periodic addition of lubricating oil, lacking convenient and intuitive lubrication monitoring methods. Operators cannot know the remaining amount of lubricating oil inside the bearing in real time, which may lead to the bearing operating in a low-oil state due to failure to replenish lubricating oil in time. This accelerates wear, shortens the bearing's service life, and ultimately affects the stability and reliability of the entire equipment. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a flat-end eccentric sleeve outer spherical ball bearing, which solves the problem mentioned in the background art that existing bearings typically lack an effective wear warning mechanism, making it difficult for operators to detect abnormal bearing conditions in a timely manner. Often, the problem is only discovered when the bearing wear is severe, leading to equipment failure and shutdown, thus affecting the normal operation of the equipment.

[0007] The purpose and effect of this utility model of a flat-end eccentric sleeve outer spherical ball bearing are achieved by the following specific technical means:

[0008] A flat-end eccentric sleeve spherical ball bearing includes: a base; the base adopts a U-shaped seat structure, and a through-hole circular groove structure is opened on the front side of the base and a through-hole circular groove structure is opened on the left side of the base; a fixed cylinder is fixedly installed on the top of the base, and the fixed cylinder adopts an internally hollow cylindrical structure, and through-hole circular groove structures are opened on both sides of the top of the fixed cylinder; an arc-shaped plate structure placement seat is fixedly installed inside the fixed cylinder; a spherical gravity ball structure is fixedly installed on the inner side of the top of the placement seat.

[0009] Furthermore, an inner ring is rotatably provided on the inner side of the base; a set of cylindrical striking rods are fixedly provided on both sides of the outer wall of the inner ring.

[0010] Furthermore, a first slide rod with a U-shaped rod structure is slidably arranged in the circular through grooves on both sides of the top of the fixed cylinder, and a spring is sleeved on the outer side of the first slide rod.

[0011] Furthermore, a circular sliding plate is fixedly installed at the bottom of the first sliding rod, and the outer wall of the sliding plate is in contact with the inner wall of the fixed cylinder; a bell is suspended at the front end of the first sliding rod, and the position of the bell corresponds to the position of the striking rod.

[0012] Furthermore, a cylindrical oil delivery cylinder is fixedly installed in the circular groove on the left side of the base, and a nozzle structure is provided at the right end of the oil delivery cylinder. The inside of the oil delivery cylinder is filled with lubricating oil. A cylindrical second slide rod is slidably installed in the circular groove on the left side of the oil delivery cylinder, and a spring is sleeved on the outside of the second slide rod. A circular piston plate is fixedly installed at the right end of the second slide rod, and the outer wall of the piston plate is in contact with the inner wall of the oil delivery cylinder.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention, through a unique design, causes a gravity ball to fall from the mounting base onto a sliding plate when the bearing experiences significant wear and severe vibration. This action triggers a chain reaction, pressing the sliding plate and the first sliding rod downwards along the fixed cylinder, causing the bell to slide down to contact the striking rod. During bearing operation, the inner ring drives the striking rod to rotate, periodically striking the bell to produce a sound, promptly alerting nearby personnel to abnormal bearing conditions. This design significantly improves the ability to monitor bearing wear, allowing personnel to intervene and inspect in the early stages of wear, preventing equipment malfunction or even damage due to excessive bearing wear, effectively reducing economic losses and ensuring stable equipment operation.

[0015] In terms of lubrication, this invention provides a convenient manual lubrication method. When lubrication is required, pushing the second slide rod to the left causes the piston plate to compress the lubricating oil in the oil delivery cylinder, resulting in it being sprayed out from the right-side nozzle structure, achieving precise lubrication of the parts requiring lubrication. Furthermore, after the external force is removed, the elastic restoring force of the spring allows the second slide rod and piston plate to return to their original position to the right, preparing for the next lubrication operation. More importantly, the operator can visually understand the remaining amount of lubricating oil in the oil delivery cylinder by observing the position of the second slide rod, facilitating timely replenishment of lubricating oil, ensuring that the bearings are always in a good lubrication condition, maintaining the normal operation of the equipment, extending the service life of the bearings and equipment, and improving the reliability and stability of equipment operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall axial view structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall axial view structure of the fixed cylinder of this utility model in cross-sectional view.

[0018] Figure 3 This is a top view schematic diagram of the overall structure of the fixed cylinder of this utility model in cross-section.

[0019] Figure 4 This is a cross-sectional structural diagram of the oil delivery cylinder of this utility model.

[0020] Figure 5 This is the utility model Figure 2 A magnified schematic diagram of part A in the diagram.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1. Base; 101. Inner ring; 102. Striking rod; 103. Fixing cylinder; 104. Placement seat; 105. Gravity ball; 106. Sliding plate; 107. First sliding rod; 108. Bell; 109. Oil delivery cylinder; 110. Second sliding rod; 111. Piston plate. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0024] Example 1: As shown in the attached document Figure 1 To be continued Figure 5 As shown:

[0025] This utility model provides a flat-end eccentric sleeve outer spherical ball bearing, comprising: a base 1; the base 1 adopts a U-shaped seat structure, and a through circular groove structure is provided on the front side of the base 1 and a through circular groove structure is provided on the left side of the base 1; a fixing cylinder 103 is fixedly provided on the top of the base 1, and the fixing cylinder 103 adopts an internally hollow cylindrical structure, and through circular groove structures are provided on both sides of the top of the fixing cylinder 103; an arc-shaped plate structure placement seat 104 is fixedly provided inside the fixing cylinder 103; a spherical gravity ball 105 is fixedly provided on the inner side of the top of the placement seat 104.

[0026] The base 1 has an inner ring 101 rotatably mounted on its inner side; a set of cylindrical striking rods 102 are fixedly mounted on both sides of the outer wall of the inner ring 101.

[0027] Among them, a first slide rod 107 with a U-shaped rod structure is slidably arranged in the circular through grooves on both sides of the top of the fixed cylinder 103, and a spring is sleeved on the outer side of the first slide rod 107.

[0028] The bottom of the first slide rod 107 is fixedly provided with a circular sliding plate 106, and the outer wall of the sliding plate 106 is in contact with the inner wall of the fixed cylinder 103; a bell 108 is suspended at the front end of the first slide rod 107, and the position of the bell 108 corresponds to the position of the striking rod 102.

[0029] The specific usage and function of this embodiment are as follows:

[0030] During use, if the bearing experiences significant wear and severe vibration, the gravity ball 105 will fall from the mounting base 104 onto the sliding plate 106 below. This will press the sliding plate 106 and the first sliding rod 107 downwards along the fixed cylinder 103, further causing the bell 108 at the front end of the first sliding rod 107 to slide downwards until it contacts the striking rod 102. During bearing operation, the inner ring 101 drives the striking rod 102 to rotate. When the striking rod reaches the position of the bell 108, it will strike the bell 108 and produce a sound, thus alerting nearby personnel to promptly check the bearing condition. This prevents equipment malfunction due to severe bearing wear, which could lead to equipment damage and reduce economic losses.

[0031] Example 2: Based on Example 1, as shown in the appendix Figure 1 To be continued Figure 5 As shown:

[0032] Among them, a cylindrical oil delivery cylinder 109 is fixedly installed in the circular through groove on the left side of the base 1, and a nozzle structure is opened at the right end of the oil delivery cylinder 109. The inside of the oil delivery cylinder 109 is filled with lubricating oil. A cylindrical second slide rod 110 is slidably installed in the circular through groove on the left side of the oil delivery cylinder 109, and a spring is sleeved on the outside of the second slide rod 110. A circular piston plate 111 is fixedly installed at the right end of the second slide rod 110, and the outer wall of the piston plate 111 is in contact with the inner wall of the oil delivery cylinder 109.

[0033] The specific usage and function of this embodiment are as follows:

[0034] In this invention, when lubrication of the equipment is required, the second slide rod 110 is pushed to the left. Since a spring is sleeved on the outside of the second slide rod 110, the spring is initially in its natural state. When an external force pushes the second slide rod 110, the spring is compressed, and simultaneously the piston plate 111 moves to the left within the oil delivery cylinder 109. The movement of the piston plate 111 compresses the lubricating oil within the oil delivery cylinder 109, causing the lubricating oil to spray out from the nozzle structure at the right end of the oil delivery cylinder 109, spraying it towards the area requiring lubrication. When the external force is removed, the elastic restoring force of the spring causes the second slide rod 110 and piston plate 111 to return to their original position to the right, preparing for the next lubrication operation. Simultaneously, by observing the position of the second slide rod 110, the remaining amount of lubricating oil in the oil delivery cylinder 109 can be determined, facilitating timely replenishment and preventing delays in the normal operation of the bearing.

Claims

1. A spherical ball bearing with a flat end and an eccentric sleeve, characterized in that, include: Base (1); The base (1) adopts a U-shaped seat structure, and a through circular groove structure is provided on the front side of the base (1), and a through circular groove structure is provided on the left side of the base (1); a fixed cylinder (103) is fixedly provided on the top of the base (1), and the fixed cylinder (103) adopts a hollow cylindrical structure, and a through circular groove structure is provided on both sides of the top of the fixed cylinder (103); an arc plate structure placement seat (104) is fixedly provided inside the fixed cylinder (103); a spherical gravity ball (105) is fixedly provided on the inner side of the top of the placement seat (104).

2. The spherical ball bearing with an eccentric sleeve at one end as described in claim 1, characterized in that: The base (1) has an inner ring (101) rotatably arranged on its inner side; a set of cylindrical striking rods (102) are fixedly arranged on both sides of the outer wall of the inner ring (101).

3. The spherical ball bearing with an eccentric sleeve at one end as described in claim 1, characterized in that: The first slide rod (107) of the U-shaped rod structure is slidably arranged in the circular through grooves on both sides of the top of the fixed cylinder (103), and a spring is sleeved on the outside of the first slide rod (107).

4. The spherical ball bearing with an eccentric sleeve at one end as described in claim 3, characterized in that: The bottom of the first slide bar (107) is fixedly provided with a circular sliding plate (106), and the outer wall of the sliding plate (106) is in contact with the inner wall of the fixed cylinder (103).

5. The spherical ball bearing with an eccentric sleeve at one end as described in claim 3, characterized in that: A bell (108) is suspended at the front end of the first slide bar (107), and the position of the bell (108) corresponds to the position of the striking bar (102).

6. The spherical ball bearing with an eccentric sleeve at one end as described in claim 1, characterized in that: A cylindrical oil delivery cylinder (109) is fixedly installed in the circular through groove on the left side of the base (1), and a nozzle structure is provided at the right end of the oil delivery cylinder (109). The inside of the oil delivery cylinder (109) is filled with lubricating oil.

7. The spherical ball bearing with an eccentric sleeve at one end as described in claim 6, characterized in that: A cylindrical second slide rod (110) is slidably disposed in the circular through groove on the left side of the oil delivery cylinder (109), and a spring is sleeved on the outer side of the second slide rod (110); a circular piston plate (111) is fixedly disposed at the right end of the second slide rod (110), and the outer wall of the piston plate (111) is in contact with the inner wall of the oil delivery cylinder (109).