High-wear-resistance single-row oscillating bar bearing

Abstract

The utility model discloses a high-wear-resistance single-row swing rod bearing which comprises an outer sleeve and a swing rod integrally formed on the outer sleeve. The inner sleeve is provided with a through hole; steel balls are annularly distributed on the retainer, and the inner sleeve is connected into the through hole of the outer sleeve through the retainer and the steel balls; the retainer comprises arc-shaped rings, retaining blocks and a retainer body of an annular structure, the arc-shaped rings are distributed on the side face of the outer circumference of the retainer body, the retaining blocks are annularly distributed on one side of the retainer body, annular oil guide flow channels are formed in the arc-shaped rings, L-shaped oil guide flow channels are formed in the retainer body, and the annular oil guide flow channels are communicated with the retaining blocks through the L-shaped oil guide flow channels. According to the utility model, certain distances can be kept between the steel balls, the steel balls are prevented from being blocked under the condition of lacking lubricating oil, the lubricating oil can be stored favorably, and the lubricating oil flows to the surfaces of the steel balls through the annular oil guide flow channels and the L-shaped oil guide flow channels, so that the lubricating effect is achieved.

Description

Technical Field

[0001] This utility model relates to a high wear-resistant single-row rocker arm bearing. Background Technology

[0002] The primary function of a bearing is to support rotating mechanical parts, reduce the coefficient of friction during their movement, and ensure their rotational accuracy. A rocker arm bearing is a type of bearing used to support rotating mechanical parts and reduce the coefficient of friction during their movement. Its main characteristics are low frictional resistance, low power consumption, high mechanical efficiency, and easy starting. It supports rotating shafts and parts on the shaft, maintaining the shaft's normal operating position and rotational accuracy. Rocker arm bearings have a large load capacity and impact resistance, and are also corrosion-resistant, wear-resistant, and self-aligning, making them widely used in our daily lives.

[0003] Due to design flaws in the cage, existing rocker arm bearings cannot effectively store lubricating oil, causing the steel balls to wear easily during continuous operation. In severe cases, this can lead to the steel balls seizing up, affecting the service life of the rocker arm bearing. Utility Model Content

[0004] The purpose of this utility model is to provide a technical solution for a high wear-resistant single-row rocker arm bearing to address the shortcomings of existing technologies. This solution not only maintains a certain distance between the steel balls to prevent them from jamming in the absence of lubricating oil, but also facilitates the storage of lubricating oil, allowing the lubricating oil to flow to the surface of the steel balls through the annular oil guide channel and the L-shaped oil guide channel, thereby achieving a lubricating effect.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A high wear-resistant single-row rocker arm bearing, comprising:

[0007] The jacket is a one-piece molded jacket with a swing bar;

[0008] Inner sleeve, the inner sleeve is provided with a through hole;

[0009] The cage has steel balls arranged in a ring on it, and the inner sleeve is connected to the outer sleeve through the through hole of the outer sleeve via the cage and the steel balls;

[0010] Its features are:

[0011] The cage includes an arc ring, a retaining block, and a ring-shaped frame. The arc ring is distributed on the outer circumference of the frame, and the retaining block is distributed in a ring on one side of the frame. An annular oil guide channel is provided inside the arc ring, and an L-shaped oil guide channel is provided inside the frame. The annular oil guide channel is connected to the retaining block through the L-shaped oil guide channel. Through the design of the above structure, not only can a certain distance be maintained between the steel balls to avoid jamming in the absence of lubricating oil, but it is also conducive to storing lubricating oil, so that the lubricating oil flows to the surface of the steel balls through the annular oil guide channel and the L-shaped oil guide channel, thereby playing a lubricating role.

[0012] Furthermore, the arc ring is provided with an oil guide hole, and the outer sleeve is provided with an oil injection hole. The oil injection hole is connected to the annular oil guide channel through the oil guide hole. A sealing block is detachably connected to the outside of the oil injection hole. By opening the sealing block, lubricating oil can be injected into the annular oil guide channel through the oil injection hole and the oil guide hole, thereby improving the lubrication effect and extending the service life of the rocker arm bearing.

[0013] Furthermore, the retaining block has a cavity with its top surface and two opposite sides connected to each other for holding the steel ball. The bottom of the retaining block has a positioning hole that connects to an L-shaped oil guide channel. Through the design of the retaining block, the steel ball can be individually limited, improving the stability and reliability of the steel ball during the rolling process. At the same time, it can effectively prevent collisions between two adjacent steel balls and prevent jamming.

[0014] Furthermore, a rubber layer is provided on the outer side of the arc ring, which can play a sealing role, reduce the outflow of lubricating oil, and extend the service life of the rocker arm bearing.

[0015] Furthermore, the outer side of the arc ring is provided with a limiting block, and the inner side of the outer sleeve is provided with a limiting groove. The limiting block is embedded in the limiting groove to achieve a stable fit between the arc ring and the outer sleeve. Through the design of the limiting block and the limiting groove, the cage can be accurately installed, which is conducive to the precise fit between the oil injection hole and the oil guide hole, and improves the oil injection efficiency and assembly efficiency.

[0016] Furthermore, a sealing ring is provided between the outer and inner sleeves. The sealing ring is located on the opposite side of the retainer and can work with the arc ring to seal the space between the outer and inner sleeves, preventing external dust and impurities from entering and reducing friction and wear.

[0017] Furthermore, the inner wall of the outer sleeve is provided with a first annular groove in a ring structure, and the outer wall of the inner sleeve is provided with a second annular groove in a ring structure, and the steel ball rolls along the first annular groove and the second annular groove.

[0018] Furthermore, the outer and inner covers are set at an angle.

[0019] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0020] 1. This utility model not only maintains a certain distance between each steel ball to prevent jamming in the absence of lubricating oil, but also facilitates the storage of lubricating oil, allowing the lubricating oil to flow to the surface of the steel ball through the annular oil guide channel and the L-shaped oil guide channel, thereby playing a lubricating role.

[0021] 2. By using the retaining block design, the steel balls can be individually limited, improving the stability and reliability of the steel balls during the rolling process. At the same time, it can effectively prevent collisions between two adjacent steel balls and prevent jamming. Attached image description:

[0022] The present invention will be further described below with reference to the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the structure of a high wear-resistant single-row rocker arm bearing according to this utility model;

[0024] Figure 2 This is a schematic diagram showing the connection between the steel ball and the cage in this utility model;

[0025] Figure 3 This is a schematic diagram of the retaining block in this utility model;

[0026] Figure 4 for Figure 1 A magnified view of section I in the middle.

[0027] In the diagram: 1-outer sleeve; 2-inner sleeve; 3-swing rod; 4-through hole; 5-cage; 6-steel ball; 7-sealing ring; 8-frame; 9-arc ring; 10-oil guide hole; 11-limiting block; 12-cage block; 13-cavity; 14-positioning hole; 15-L-shaped oil guide channel; 16-oil injection hole; 17-sealing block; 18-annular oil guide channel; 19-first annular groove; 20-second annular groove. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0031] like Figures 1 to 4 As shown, this utility model discloses a high wear-resistant single-row rocker arm bearing, comprising an outer sleeve 1, an inner sleeve 2, and a cage 5. The outer sleeve 1 and the inner sleeve 2 are arranged at an angle.

[0032] The outer jacket 1 is a one-piece molded piece with a swing arm 3.

[0033] The inner sleeve 2 has a through hole 4, and the retainer 5 has steel balls 6 arranged in a ring. The inner wall of the outer sleeve 1 has a first annular groove 19 with an annular structure, and the outer wall of the inner sleeve 2 has a second annular groove 20 with an annular structure. The steel balls 6 roll along the first annular groove 19 and the second annular groove 20.

[0034] The inner sleeve 2 is connected to the through hole 4 of the outer sleeve 1 via the retainer 5 and the steel ball 6.

[0035] The cage 5 includes an arc ring 9, a retaining block 12, and a ring-shaped frame 8. The arc ring 9 is distributed on the outer circumferential side of the frame 8. The arc ring 9 is provided with an oil guide hole 10, and the outer sleeve 1 is provided with an oil injection hole 16. The oil injection hole 16 is connected to the annular oil guide channel 18 through the oil guide hole 10. A sealing block 17 is detachably connected to the outside of the oil injection hole 16. By opening the sealing block 17, lubricating oil can be injected into the annular oil guide channel 18 through the oil injection hole 16 and the oil guide hole 10, thereby improving the lubrication effect and extending the service life of the rocker arm 3 bearing.

[0036] The outer surface of the arc ring 9 is provided with a rubber layer, which can play a sealing role, reduce the outflow of lubricating oil, and extend the service life of the rocker arm 3 bearing.

[0037] The outer side of the arc ring 9 is provided with a limiting block 11, and the inner side of the outer sleeve 1 is provided with a limiting groove. The limiting block 11 is embedded in the limiting groove to achieve a stable fit between the arc ring 9 and the outer sleeve 1. Through the design of the limiting block 11 and the limiting groove, the cage 5 can be accurately installed, which is conducive to the precise fit between the oil injection hole 16 and the oil guide hole 10, and improves the oil injection efficiency and assembly efficiency.

[0038] The retaining blocks 12 are arranged in a ring on one side of the frame 8. The arc ring 9 is provided with an annular oil guide channel 18, and the frame 8 is provided with an L-shaped oil guide channel 15. The annular oil guide channel 18 is connected to the retaining blocks 12 through the L-shaped oil guide channel 15.

[0039] The retaining block 12 is provided with a cavity 13, the top surface of the cavity 13 and the two opposite sides are interconnected for holding the steel ball 6. The bottom of the retaining block 12 is provided with a positioning hole 14, which is connected to the L-shaped oil guide channel 15. Through the design of the retaining block 12, the steel ball 6 can be individually limited, improving the stability and reliability of the steel ball 6 during the rolling process. At the same time, it can effectively prevent the collision between two adjacent steel balls 6 and prevent jamming.

[0040] The above-mentioned structure design not only maintains a certain distance between each steel ball 6 to prevent jamming in the absence of lubricating oil, but also facilitates the storage of lubricating oil, allowing the lubricating oil to flow through the annular oil guide channel 18 and the L-shaped oil guide channel 15 to the surface of the steel ball 6, thereby playing a lubricating role.

[0041] A sealing ring 7 is provided between the outer sleeve 1 and the inner sleeve 2. The sealing ring 7 is located on the opposite side of the retainer 5 and can work with the arc ring 9 to seal the space between the outer sleeve 1 and the inner sleeve 2, preventing external dust and impurities from entering and reducing friction and wear.

[0042] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to achieve essentially the same technical effect are all covered within the protection scope of this utility model.

Claims

1. A high wear-resistant single-row rocker arm bearing, comprising: The outer jacket, which is integrally molded, has a swing arm; Inner sleeve, wherein the inner sleeve is provided with a through hole; The inner sleeve is connected to the outer sleeve through a through hole via the retainer and the steel balls, and the retainer has a cage on which steel balls are arranged in a ring. Its features are: The retainer includes an arc ring, a retaining block, and a frame with an annular structure. The arc ring is distributed on the outer circumferential side of the frame, and the retaining block is distributed in an annular shape on one side of the frame. An annular oil guide channel is provided inside the arc ring, and an L-shaped oil guide channel is provided inside the frame. The annular oil guide channel is connected to the retaining block through the L-shaped oil guide channel.

2. The high wear-resistant single-row rocker bearing according to claim 1, characterized in that: The arc-shaped ring is provided with an oil guide hole, and the outer sleeve is provided with an oil injection hole. The oil injection hole is connected to the annular oil guide channel through the oil guide hole, and a sealing block is detachably connected to the outside of the oil injection hole.

3. The high wear-resistant single-row rocker bearing according to claim 1, characterized in that: The retaining block has a cavity, the top surface of which is connected to the two opposite sides for holding the steel ball. The bottom of the retaining block has a positioning hole that connects to the L-shaped oil guide channel.

4. The high wear-resistant single-row rocker bearing according to claim 1, characterized in that: The outer surface of the arc-shaped ring is provided with a rubber layer.

5. A high wear-resistant single-row rocker bearing according to claim 4, characterized in that: The outer side of the arc ring is provided with a limiting block, and the inner side of the outer sleeve is provided with a limiting groove. The limiting block is embedded in the limiting groove to achieve a stable fit between the arc ring and the outer sleeve.

6. A high wear-resistant single-row rocker bearing according to claim 1, characterized in that: A sealing ring is provided between the outer sleeve and the inner sleeve, and the sealing ring is located on the opposite side of the retainer.

7. A high wear-resistant single-row rocker bearing according to claim 1, characterized in that: The inner wall of the outer sleeve has a first annular groove with a ring structure, and the outer wall of the inner sleeve has a second annular groove with a ring structure. The steel ball rolls along the first annular groove and the second annular groove.

8. A high wear-resistant single-row rocker arm bearing according to claim 1, characterized in that: The outer jacket and the inner jacket are arranged at an angle.

Images