Low-friction rotary bearing

Abstract

The low-friction rotary bearing comprises an inner ring, an outer ring, rolling beads and a retainer, and the rolling beads are fixed between the inner ring and the outer ring through the retainer; a sliding groove is formed in the inner circle of the outer ring; a sliding groove is formed in the outer circle of the inner ring; a plurality of sliding blocks are arranged in the sliding groove. Threaded holes are formed in the side portions of the sliding blocks. Sealing rings are arranged on the two sides of the rolling body; a threaded hole is formed in the sealing ring and corresponds to the threaded hole in the sliding block; the sealing ring is fixedly connected with the sliding block through a bolt and the threaded hole; an oil injection hole is formed in the side of the liquid storage tank; counterbores are formed in the upper ends of the oil injection holes; and the sealing bolt seals the oil injection hole through the counterbore. The low-friction rotary bearing has the beneficial effects that the spiral textures are arranged on the surfaces of the rolling beads, lubricating liquid can be dynamically stored and released, lubrication is continuously provided for the contact parts of the rolling beads, the inner ring and the outer ring in the operation process of the bearing, and the friction force is effectively reduced.

Description

Technical Field

[0001] This utility model belongs to the field of bearing technology, specifically relating to a low-friction rotary bearing. Background Technology

[0002] In the field of mechanical engineering, rotary bearings are crucial components in many devices. Traditional rotary bearings can suffer from energy loss, accelerated wear, and shortened service life due to high friction during use. To address these issues, the development of low-friction rotary bearings has become a critical requirement.

[0003] With the continuous development of industry, the performance requirements for mechanical equipment are becoming increasingly stringent. Especially in high-precision, high-load applications, rotary bearings need to minimize friction while ensuring stable operation. This not only improves equipment efficiency but also reduces maintenance costs and downtime. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a low-friction rotary bearing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-friction rotary bearing, comprising: an inner ring, an outer ring, rolling balls, and a cage, wherein the rolling balls are fixed between the inner and outer rings by the cage; a groove is provided on the inner side of the outer ring; a groove is provided on the outer side of the inner ring; a plurality of sliders are provided inside the grooves; threaded holes are provided on the sides of the sliders; sealing rings are provided on both sides of the rolling elements; threaded holes are provided on the sealing rings and correspond to the threaded holes on the sliders; the sealing rings are fixedly connected to the sliders by bolts and threaded holes;

[0006] An inner ring is provided with a liquid storage tank; the liquid storage tank is annular and matches the internal space of the inner ring; an oil outlet is provided in the inner ring; the oil outlet passes through the inner ring and the liquid storage tank.

[0007] An oil filling hole is provided on the side of the storage tank; a countersunk hole is provided at the upper end of the oil filling hole; the sealing bolt seals the oil filling hole through the countersunk hole.

[0008] The rolling balls are fixed between the inner and outer rings by the cage, which ensures that the rolling balls are in a stable position during operation, making the bearing run more smoothly and reliably.

[0009] The outer and inner rings are equipped with grooves and sliders, which provide a stable structural foundation for the installation of the seal ring, facilitate the fixing and adjustment of the seal ring position, and enhance the overall stability of the bearing structure.

[0010] The sealing ring is fixedly connected to the slider with bolts, ensuring the sealing ring's firmness, effectively preventing dust, impurities, and other contaminants from entering the bearing, protecting internal parts, and extending the bearing's service life.

[0011] The inner ring is equipped with a reservoir and an oil outlet, which can continuously provide lubricant to the bearing, reduce friction, and improve the bearing's operating efficiency and performance.

[0012] Further: A filter screen is installed on the oil filling hole; the filter screen is located on the side near the inside of the oil storage tank and is fixedly connected to the periphery inside the oil filling hole.

[0013] A filter screen is installed on the oil filling hole to filter out impurities that may be mixed in during the oil filling process, ensuring that the lubricating fluid entering the reservoir is clean. This reduces bearing wear caused by impurities, extends bearing service life, and ensures normal bearing operation.

[0014] Further: The storage tank contains lubricating fluid.

[0015] The reservoir stores lubricating fluid, providing a continuous source of lubrication for the bearing, reducing friction between bearing components, minimizing energy loss and wear, and improving bearing efficiency and service life.

[0016] Further note: The lubricant is a synthetic oil.

[0017] The lubricant is a synthetic oil, which typically has better performance, such as high-temperature stability and oxidation resistance. It can provide better lubrication for bearings under different working conditions, further reduce friction, and extend bearing life.

[0018] Further: The sealing ring is made of rubber.

[0019] The sealing ring is made of rubber, which has good elasticity and sealing properties. It can fit tightly between the two sides of the rolling ball and the inner and outer rings, effectively isolating dust, moisture and other impurities in the external environment, preventing them from entering the bearing, protecting the bearing parts, and improving the reliability and service life of the bearing.

[0020] Further: The ball bearing is made of stainless steel.

[0021] The rolling balls are made of stainless steel, which has high strength and corrosion resistance. It can withstand large loads and friction, and is not easily deformed or damaged, ensuring the stability and reliability of the bearing in long-term use.

[0022] Furthermore, the surface of the ball bearing is textured for dynamically storing and releasing lubricant.

[0023] Textured surfaces on the ball bearings allow for dynamic storage and release of lubricant, continuously providing lubrication to contact points during bearing operation. This ensures timely and effective lubrication, reduces friction, and improves bearing performance and lifespan.

[0024] Further: The texture is spiral-shaped.

[0025] The texture is spiral-shaped, which can better guide the flow of lubricant, making the lubricant more evenly distributed on the surface of the rolling ball, further improving the lubrication effect and reducing friction.

[0026] Further: A certain gap is maintained between the two sides of the rolling ball and the inner and outer rings.

[0027] The rolling balls maintain a certain gap with the inner and outer rings on both sides, avoiding friction and jamming caused by excessive tightness, ensuring the flexibility and smoothness of the bearing during operation, reducing energy loss, and improving the working efficiency of the bearing.

[0028] Further: The sealing ring isolates the rolling ball from the external environment.

[0029] The sealing ring isolates the rolling balls from the external environment, effectively preventing contaminants from entering the bearing, protecting the rolling balls and other internal parts from damage, extending the bearing's service life, and ensuring stable bearing performance.

[0030] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0031] 1. This low-friction rotary bearing features a spiral texture on the surface of the rolling balls, which can dynamically store and release lubricant, continuously providing lubrication to the contact parts of the rolling balls, inner ring, and outer ring during bearing operation, effectively reducing friction.

[0032] 2. This low-friction rotary bearing has a reservoir in the inner ring to store synthetic oil lubricant, which provides a stable lubrication source for the bearing through the oil outlet, further reducing friction.

[0033] 3. This low-friction rotary bearing features an oil filling hole on the side of the reservoir for easy addition of lubricant when needed. The countersunk hole and sealing plug at the top of the oil filling hole ensure a tight seal during the oil filling process, preventing lubricant leakage. Attached Figure Description

[0034] 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:

[0035] Figure 1 This is a side sectional view of the present invention.

[0036] In the diagram: 1. Inner ring; 2. Outer ring; 3. Ball bearing; 4. Cage; 5. Sealing ring; 6. Slider; 7. Liquid reservoir. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0038] like Figure 1 The low-friction rotary bearing shown includes: an inner ring, an outer ring, rolling balls, and a cage. The rolling balls are fixed between the inner and outer rings by the cage. A groove is provided on the inner side of the outer ring. A groove is provided on the outer side of the inner ring. A plurality of sliders are provided inside the grooves. Threaded holes are provided on the sides of the sliders. Sealing rings are provided on both sides of the rolling elements. Threaded holes are provided on the sealing rings and correspond to the threaded holes on the sliders. The sealing rings are fixedly connected to the sliders by bolts and threaded holes.

[0039] An inner ring is provided with a liquid storage tank; the liquid storage tank is annular and matches the internal space of the inner ring; an oil outlet is provided in the inner ring; the oil outlet passes through the inner ring and the liquid storage tank.

[0040] An oil filling hole is provided on the side of the storage tank; a countersunk hole is provided at the upper end of the oil filling hole; the sealing bolt seals the oil filling hole through the countersunk hole.

[0041] Further: A filter screen is installed on the oil filling hole; the filter screen is located on the side near the inside of the oil storage tank and is fixedly connected to the periphery inside the oil filling hole.

[0042] Further: The storage tank contains lubricating fluid.

[0043] Further note: The lubricant is a synthetic oil.

[0044] Further: The sealing ring is made of rubber.

[0045] Further: The ball bearing is made of stainless steel.

[0046] Furthermore, the surface of the ball bearing is textured for dynamically storing and releasing lubricant.

[0047] Further: The texture is spiral-shaped.

[0048] Further: A certain gap is maintained between the two sides of the rolling ball and the inner and outer rings.

[0049] Further: The sealing ring isolates the rolling ball from the external environment.

[0050] The working principle of this utility model is as follows:

[0051] First, the balls are secured between the inner and outer rings by a cage. The cage ensures that the balls maintain proper spacing and position during operation, preventing them from colliding with each other or deviating from their track.

[0052] Next, the sealing rings are installed on both sides of the rolling balls. The sliders in the grooves on the outer and inner rings are connected to the threaded holes on the sealing rings via bolts, firmly fixing the sealing rings in the appropriate positions. The sealing rings are made of rubber, possessing good elasticity and sealing properties, and can tightly fit into the gaps between the rolling balls and the inner and outer rings, isolating the rolling balls from the external environment and preventing dust, impurities, and other contaminants from entering the bearing.

[0053] An annular reservoir containing synthetic oil lubricant is located inside the inner ring. The reservoir is connected to the bearing's working area via an oil outlet on the inner ring.

[0054] When the bearing starts operating, the inner and outer rings rotate relative to each other, causing the balls to roll under the constraint of the cage. The spiral texture on the surface of the balls plays a crucial role in this rolling process. As the balls rotate, the texture dynamically stores and releases lubricant. When the balls contact the inner and outer rings, the lubricant stored in the texture is released, providing lubrication to the contact points and reducing friction. Simultaneously, the timely and effective lubrication is further ensured by the continuous supply of lubricant from the reservoir to the bearing's working area through the oil outlet.

[0055] The rolling balls maintain a certain gap with the inner and outer rings on both sides, so that the rolling balls will not cause friction and jamming due to excessive tightness during operation, thus ensuring the flexibility and smoothness of the bearing.

[0056] When lubricant needs to be added to the bearing, open the sealing plug and inject synthetic oil lubricant through the oil filling hole on the side of the reservoir. The filter screen on the oil filling hole can filter out any impurities that may get in, ensuring that the lubricant entering the reservoir is clean. After filling, seal the oil filling hole with the sealing plug through the countersunk hole to prevent lubricant leakage.

[0057] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0058] In the description of this specification, the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples", etc., refer to the specific features, structures, materials or characteristics described in connection with that embodiment or example that are included in at least one embodiment or example of this utility model.

[0059] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A low-friction rotary bearing, comprising: An inner ring, an outer ring, a ball bearing, and a cage are characterized in that the ball bearing is fixed between the inner and outer rings by the cage; a groove is provided on the inner part of the outer ring; a groove is provided on the outer part of the inner ring; a plurality of sliders are provided inside the grooves; threaded holes are provided on the sides of the sliders; sealing rings are provided on both sides of the ball bearings; threaded holes are provided on the sealing rings and correspond to the threaded holes on the sliders; the sealing rings are fixedly connected to the sliders by bolts and threaded holes. The inner ring is provided with a liquid storage tank; the liquid storage tank is annular and matches the internal space of the inner ring; the inner ring is provided with an oil outlet; the oil outlet penetrates the inner ring and the liquid storage tank; The storage tank is provided with an oil injection hole on its side; a countersunk hole is provided at the upper end of the oil injection hole; a sealing bolt seals the oil injection hole through the countersunk hole.

2. The low-friction rotary bearing according to claim 1, characterized in that: A filter screen is provided on the oil filling hole; the filter screen is located on the side close to the inside of the oil storage tank and is fixedly connected to the periphery inside the oil filling hole.

3. The low-friction rotary bearing according to claim 1, characterized in that: The storage tank contains lubricating fluid.

4. A low-friction rotary bearing according to claim 3, characterized in that: The lubricant is a synthetic oil.

5. A low-friction rotary bearing according to claim 1, characterized in that: The sealing ring is made of rubber.

6. A low-friction rotary bearing according to claim 1, characterized in that: The ball bearing is made of stainless steel.

7. A low-friction rotary bearing according to claim 1, characterized in that: The surface of the ball bearing is textured for dynamically storing and releasing lubricant.

8. A low-friction rotary bearing according to claim 7, characterized in that: The texture is spiral-shaped.

9. A low-friction rotary bearing according to claim 1, characterized in that: The rolling ball maintains a certain gap between its two sides and the inner and outer rings.

10. A low-friction rotary bearing according to claim 1, characterized in that: The sealing ring isolates the rolling ball from the external environment.

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