A non-energy consuming bearing

Abstract

The utility model discloses a kind of no-load bearing, including annular inner ring, outer ring, the inner ring outer side middle waist part is provided with inner ring groove one, the outer ring inner side waist part is provided with outer ring inner groove one, the inner ring is provided with multiple ball and intermediate wheel between outer ring, recess is set on the upper end of intermediate wheel one circle, lower recess is set on the lower end one circle, the recess of intermediate wheel is set on upper outer ring and upper inner ring, the lower recess of intermediate wheel is set on lower outer ring and lower inner ring, and intermediate wheel can be freely rotated.The utility model changes the sliding friction structure that original retainer is wrapped around ball or roller into the rolling friction between ball, roller and intermediate wheel or intermediate wheel two or intermediate wheel three, that is, greatly reduce friction, thereby greatly reduce power loss, and mechanical structure is stable.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, specifically to a zero-power bearing. Background Technology

[0002] Currently, all bearings on the market, whether ball bearings or roller bearings, have significant sliding friction between the cage and the balls or rollers, resulting in substantial power loss.

[0003] For over a century since the invention of bearings, this structure has remained virtually unchanged. Currently, most bearings on the market have a cage enclosing the balls, or a cage enclosing the rollers. Some bearings even eliminate the cage altogether, directly embedding the rollers or balls into the inner ring, outer ring, or a cage-like ring. This results in greater friction and more power loss. Summary of the Invention

[0004] To address the problems existing in the background technology, this utility model provides a zero-power-consumption bearing with an ingenious structure that changes the sliding friction between the cage and the balls or rollers of the original bearing to rolling friction, thereby greatly reducing frictional resistance, lowering power consumption, and having a robust mechanical structure.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: It includes an inner ring, characterized in that an outer ring is provided around the inner ring, both the outer and inner rings are annular, an inner ring groove is provided in the middle of the outer side of the inner ring, and an outer ring inner groove is provided in the middle of the inner side of the outer ring. A plurality of rolling balls and an intermediate wheel are provided between the inner and outer rings. An upper wheel is provided at the upper end of the intermediate wheel, with a groove around its upper end and an upper semi-circle around its lower end. An expansion hole is provided at the center of the bottom surface of the lower end, and an arc-shaped groove is provided on the side of the expansion hole, with a wider bottom and a narrower inlet. A lower wheel is provided at the lower end of the intermediate wheel, with a lower groove around its lower end and a lower semi-circle around its upper end. A cylinder is provided at the center of the top surface of the upper end. An expansion screw hole is provided at the center of the top surface, and a side post is provided on the side. An expansion screw is provided in the expansion screw hole. The expansion screw is thicker at the top and slightly thinner at the bottom. The lower end can be inserted into the expansion screw hole. The cylinder and the expansion screw can be inserted into the expansion hole as a whole. At the same time, the side post is inserted into the arc-shaped groove, so that the upper and lower half arcs form a complete arc. The ball is set between the upper and lower half arcs of two adjacent intermediate wheels to form a complete arc and the outer ring inner groove 1 and inner ring groove 1 of the outer ring. The upper wheel of the intermediate wheel has the upper outer ring fitted on the groove near the outer ring and the upper inner ring embedded on the groove near the inner ring. The lower wheel of the intermediate wheel has the lower outer ring fitted on the groove near the outer ring and the lower inner ring embedded on the groove near the inner ring. The intermediate wheels can rotate freely.

[0006] Furthermore, a zero-power bearing is provided, wherein an outer ring is provided around the inner ring, an inner ring groove 1 is provided in the middle waist of the outer side of the inner ring, and an outer ring inner groove 2 is provided in the middle waist of the outer ring. A plurality of rolling balls and intermediate wheels are provided between the inner ring and the outer ring, with an upper wheel at the upper end and a lower wheel at the lower end. The rolling balls are positioned between the upper and lower half-arcs of two adjacent intermediate wheels forming a complete arc and between the outer ring inner groove 2 and the inner ring groove 1 of the outer ring. The upper wheel of the intermediate wheel has its groove near the outer ring fitted with the upper outer ring, and its groove near the inner ring embedded in the upper inner ring. The lower wheel of the intermediate wheel has its groove near the outer ring fitted with the lower outer ring, and its groove near the inner ring embedded in the lower inner ring. The intermediate wheels can rotate freely.

[0007] Furthermore, a zero-power bearing is provided, wherein an outer ring is provided around the inner ring, and inner ring grooves are symmetrically provided on the upper and lower sides of the outer side of the inner ring, and an outer ring inner groove is provided on the inner side of the outer ring. A plurality of rolling balls and intermediate wheels are provided between the inner ring grooves of the inner ring and the outer ring inner grooves of the outer ring. An upper inner ring and an upper outer ring are respectively provided on the inner and outer sides of the groove of the upper wheel of the intermediate wheel, and a lower inner ring and a lower outer ring are respectively provided on the inner and outer sides of the lower groove of the lower wheel of the intermediate wheel, and the intermediate wheel can rotate freely.

[0008] Furthermore, a zero-power bearing includes an inner ring surrounded by an outer ring. Both the inner and outer rings are annular. An inner ring groove is located at the midpoint of the outer side of the inner ring, and an outer ring groove is located at the midpoint of the inner side of the outer ring. A plurality of rollers and an intermediate wheel are disposed between the inner and outer rings. The intermediate wheel has an upper wheel at its upper end and a lower wheel at its lower end. The upper wheel has a groove around its upper end and an upper semi-cylindrical surface around its lower end. An expansion hole is located at the center of the bottom surface of the lower end, and an arc-shaped groove is provided on the side of the expansion hole. The lower wheel has a groove around its lower end and a lower semi-cylindrical surface around its upper end. A cylinder is located at the center of the top surface of the upper end. An expansion screw hole is provided, and a side post is provided on the side. An expansion screw is provided in the expansion screw hole. The expansion screw is thicker at the top and slightly thinner at the bottom. The lower end can be inserted into the expansion screw hole. The cylinder and the expansion screw can be inserted into the expansion hole as a whole. At the same time, the side post is inserted into the arc-shaped groove, so that the upper and lower cylindrical surfaces together form a complete cylindrical surface. The roller is set between the complete cylindrical surfaces of two adjacent intermediate wheels and the outer ring inner groove of the outer ring and the inner ring inner groove of the inner ring. The upper wheel of the intermediate wheel has the upper outer ring fitted on the groove near the outer ring and the upper inner ring embedded on the groove near the inner ring. The lower wheel of the intermediate wheel has the lower outer ring fitted on the groove near the outer ring and the lower inner ring embedded on the groove near the inner ring. The intermediate wheels can rotate freely.

[0009] Furthermore, a zero-power-consumption bearing is characterized by an outer ring surrounding the inner ring, an inner ring groove 1 located at the middle of the outer side of the inner ring, an outer ring groove 3 located at the middle of the inner side of the outer ring, a plurality of arc-shaped rollers and intermediate wheels between the inner and outer rings, an upper wheel at the upper end and a lower wheel at the lower end of the intermediate wheels, the arc-shaped rollers being positioned between the upper and lower half-arcs of two adjacent intermediate wheels forming a complete arc and the outer ring groove 3 of the outer ring and the inner ring groove 1 of the inner ring, the upper outer ring fitting onto the groove of the upper wheel of the intermediate wheel near the outer ring, and the upper inner ring being embedded in the groove near the inner ring, the lower outer ring fitting onto the groove of the lower wheel of the intermediate wheel near the outer ring, and the lower inner ring being embedded in the groove near the inner ring, and the intermediate wheels being able to rotate freely.

[0010] Furthermore, a zero-power bearing includes an inner ring, an outer ring surrounding the inner ring, inner ring grooves symmetrically arranged on the upper and lower sides of the outer side of the inner ring, and an outer ring groove 5 arranged on the inner side of the outer ring. A plurality of rollers and an intermediate wheel 2 are arranged between the inner ring grooves 3 of the inner ring and the outer ring grooves 5 of the outer ring. An upper inner ring and an upper outer ring are respectively arranged on the inner and outer sides of the groove of the upper wheel 2 of the intermediate wheel 2, and a lower inner ring and a lower outer ring are respectively arranged on the inner and outer sides of the groove of the lower wheel 2 of the intermediate wheel 2, and the intermediate wheel 2 can rotate freely.

[0011] Furthermore, a zero-power-consumption bearing is characterized in that the upper end of the intermediate wheel is provided with an upper wheel, the upper end of which is provided with a groove, the lower end of which is provided with an upper semi-circle, and a double-pillar plug is provided with a downward-facing center on the bottom surface of the lower end. The double-pillar plug is two partially overlapping cylinders with a groove at the bottom of the overlapping part of the two cylinders. The lower end of the intermediate wheel is provided with a lower wheel, the lower end of which is provided with a lower groove, the upper end of which is provided with a lower semi-circle, and a central inlet hole is provided with a center on the top surface of the upper end. The center inlet hole extends to a certain depth at the lower end and then splits to the sides to form symmetrical side holes. The double-pillar plug of the upper wheel can be inserted into the center inlet hole of the lower wheel under the action of external force. When the double-pillar plug is inserted to the bottom of the center inlet hole, the front ends of the double-pillar plug split to the left and right and enter the symmetrical side holes respectively.

[0012] Furthermore, a zero-power bearing includes an upper cover, characterized in that a lower cover is disposed below the upper cover, an upper cover platform is disposed below the upper cover, an inner groove is disposed between the upper cover platforms, the upper cover is generally annular, an outer support ring is sleeved on the outer side of the upper cover, an inner support ring is embedded in the inner side, an inner support ring platform is disposed outward below the inner support ring, an outer support ring platform is disposed inward below the outer support ring, an inner groove is disposed above the lower cover, a plurality of rolling balls are disposed between the inner groove of the upper cover and the inner groove of the lower cover, an intermediate wheel three is disposed below two adjacent rolling balls, an upper wheel three is disposed at the upper end of the intermediate wheel three, an upper inclined wheel is disposed around the upper end of the upper wheel three, an upper semi-arc is disposed around the lower end of the upper wheel three, an expansion hole is disposed at the center of the bottom surface of the lower end, an arc-shaped groove is disposed on the side of the expansion hole, a lower wheel three is disposed at the lower end of the intermediate wheel three, and a lower inclined wheel three is disposed around the lower end of the lower wheel three. The wheel has a lower half-arc at its upper end and a cylinder at the center of its top surface. An expansion screw hole is located at the center of the cylinder's top surface. Side posts are located on the sides. An expansion screw, thicker at the top and slightly thinner at the bottom, can be inserted into the expansion screw hole. The cylinder and expansion screw can be inserted together into the expansion hole, while the side posts are inserted into the arc-shaped groove, forming a complete arc with the upper and lower half-arcs. A ball is positioned between the complete arc formed by the upper and lower half-arcs of two adjacent intermediate wheels and between the inner grooves of the upper and lower covers. The upper inclined wheel of the intermediate wheel is positioned between the upper cover platform and the outer support ring platform, pressing against the outer support ring platform and maintaining a certain distance from the upper cover platform. The lower inclined wheel is positioned between the upper cover platform and the inner support ring platform, pressing against the inner support ring platform and maintaining a certain distance from the upper cover platform. The intermediate wheels can rotate freely.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention replaces the original sliding friction structure where the cage encloses the balls or rollers with rolling friction between the balls / rollers and intermediate wheels one to four or fixed wheels one to eight, thereby greatly reducing friction and power loss, while also ensuring a stable mechanical structure. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 The image above shows a top view of a power-free bearing as described in Example 1, and the image below shows a perspective view of the bearing. Figure 2 This is a zero-power bearing in Example 1. The left half is a split perspective view, and the right half is a perspective view of the intermediate wheel. Figure 3This is a split perspective view of the intermediate wheel in Example 1, where the right half is a split top view of the intermediate wheel and the left half is a bottom view of the intermediate wheel; Figure 4 The left and right images are respectively Figure 1 Sectional views A1-A1 and B1-B1; Figure 5 This is a perspective view of a power-free bearing in Example 2; Figure 6 The left and right images are respectively Figure 5 Sectional views A2-A2 and B2-B2; Figure 7 This is a top view of a power-free bearing in Example 3; Figure 8 The left and right images are respectively Figure 7 Sectional views A3-A3 and B3-B3; Figure 9 This is a top view of a power-free bearing in Example 4; Figure 10 This is a perspective view of the two intermediate wheels in Example 4, where the right half is a top view of the two intermediate wheels and the left half is a bottom view of the two intermediate wheels. Figure 11 The left and right pictures are respectively Figure 9 Sectional views A4-A4 and B4-B4; Figure 12 This is a perspective view of a power-free bearing in Example 5; Figure 13 The left and right images are respectively Figure 12 Sectional views A5-A5 and B5-B5; Figure 14 This is a perspective view of a power-free bearing in Example 6; Figure 15 The left and right pictures are respectively Figure 14 Sectional views of A6-A6 and B6-B6; Figure 16 This is a perspective view of the intermediate wheel in Example 7, where the upper and lower left parts are the bottom view of the intermediate wheel after it has been split apart, and the upper and lower right parts are the top view of the intermediate wheel after it has been split apart. Figure 17 This is a side view of the intermediate wheel in Example 7 (dashed lines represent the main internal structure). Figure 18 The image shows the intermediate wheel in Example 7. The left side view is the intermediate wheel side view (the dashed lines represent the main internal structure); the right side view is the B8-B8 cross-sectional view on the left.

[0016] Figure 19The image shows a zero-power bearing in Example 7, with the left half being its perspective view and the right half being its top view. Figure 20 This is an exploded perspective view of a power-free bearing in Example 7; Figure 21 The left and right images are respectively Figure 19 Sectional views A7-A7 and B7-B7; Figure 22 The image above is Figure 19 The figure below is a cross-sectional view of C7-C7. The figure below is a perspective view of the intermediate wheel split into three parts in Example 7. The right half is a top view of the intermediate wheel split into three parts, and the left half is a bottom view of the intermediate wheel. Wherein: Outer ring 1, Outer ring inner groove 1-1, Outer ring inner groove 2-2, Outer ring inner groove 3-3, Outer ring inner groove 4-4, Outer ring inner groove 5-5, Inner ring 2, Inner ring groove 1-1, Inner ring groove 2-2, Inner ring groove 3-3, Intermediate wheel 3, Upper wheel 3-1, Expansion screw 3-2, Lower wheel 3-3, Groove 3-4, Upper semi-arc 3-5, Expansion screw hole 3-6, Side post 3-7, Lower semi-arc 3-8, Lower groove 3-9, Expansion hole 3-10, Upper wheel 2-11, Lower wheel 2-12, Upper semi-cylindrical surface 3-13, Lower semi-cylindrical surface 3-14, Cylindrical surface 3-14, upper wheel 3-15, lower wheel 3-16, upper inclined wheel 3-17, lower inclined wheel 3-18, center inlet hole 3-19, double-column plug 3-20, side hole 3-21, ball 4, roller 4-1, arc-shaped roller 4-2, upper outer ring 5, upper inner ring 6, lower outer ring 7, lower inner ring 8, upper cover 9, upper cover inner groove 9-1, upper cover platform 9-2, inner support ring 10, inner support ring platform 10-1, outer support ring 11, outer support ring platform 11-1, lower cover 12, lower cover inner groove 12-1, intermediate wheel 2 30, intermediate wheel 3 300. Detailed Implementation Example

[0017] like Figures 1 to 4To facilitate the description of the working method of a zero-power bearing (hereinafter referred to as the bearing), the assembly method of the entire bearing is first explained: First, place the inner ring 2 at the center of the outer ring 1 and in the same horizontal plane. At the same time, place a plurality of rolling balls 4 at equal intervals between the inner groove 1-1 of the outer ring 1 and the inner groove 2-1 of the inner ring 2. Then, place the lower wheel 3-3 of the plurality of intermediate wheels 3 at a certain distance below the adjacent rolling balls. Insert the slightly thinner end of the expansion screw 3-2 into the upward-facing expansion screw hole 3-6. Then, place the lower inner ring 8 inside the lower groove 3-9 of the lower wheel 3-3 that forms a circle. Place the lower outer ring 7 on the outside of the lower groove 3-9 of the lower wheel 3-3. Then, move the entire assembly upward until the lower half arc 3-8 of the lower wheel 3-3 is in contact with the rolling balls 4 and stops. Finally, place the upper wheel of the plurality of intermediate wheels 3... The wheel 3-1 is placed at a certain distance above the adjacent rolling balls 4. The upper inner ring 6 is then placed inside the groove 3-4 of the upper wheel 3-1, which forms a circle. The upper outer ring 5 is fitted inside the groove 3-4 of the upper wheel 3-1. The entire assembly is then moved downwards, and the upward cylinder of the lower wheel 3-3 is inserted into the expansion hole 3-10 of the upper wheel 3-1. At the same time, the side post 3-7 next to the cylinder is aligned with the arc-shaped groove next to the upper expansion hole 3-10. Finally, the upper half arc 3-5 of the upper wheel 3-1 is brought into contact with the rolling balls 4. Because the larger end of the expansion screw 3-2 is also squeezed into the expansion screw hole 3-6, the cylinder of the lower wheel 3-3 expands and the expansion hole 3-10 is narrow at the entrance and wide at the bottom. Therefore, the upper wheel 3-1 and the lower wheel 3-3 of the intermediate wheel 3 are tightly fitted and fixed together to form a whole. The bearing assembly is now complete. To facilitate understanding of the bearing's operation, assume the inner ring 2 is fixed to the rotating shaft of the power unit, while the outer ring 1 remains stationary. When the rotating shaft of the power unit begins to rotate clockwise, the inner ring 2 also begins to rotate clockwise. Because the ball 4 is located between the inner groove 1-1 of the outer ring and the inner groove 2-1 of the inner ring, the ball 4 begins to roll counterclockwise under the frictional force of the inner groove 2-1 of the inner ring 2. Since the ball 4 is located between the complete arc formed by the upper half-arc 3-5 and the lower half-arc 3-8 of the two adjacent intermediate wheels 3 (hereinafter referred to as the complete arc), the frictional force of the ball 4 will drive the complete arc. When the intermediate wheel 3 rotates clockwise, both the upper wheel 3-1 and the lower wheel 3-3 of the intermediate wheel 3 rotate clockwise. Because the groove 3-4 of the upper wheel 3-1 is between the upper outer ring 5 and the upper inner ring 6, the upper outer ring 5 rotates clockwise and the upper inner ring 6 rotates counterclockwise. Because the lower groove 3-9 of the lower wheel 3-3 of the intermediate wheel 3 is between the lower outer ring 7 and the lower inner ring 8, the lower outer ring 7 rotates clockwise and the lower inner ring 8 rotates counterclockwise. At the same time, the ball 4 rolls in the inner groove 1-1 of the outer ring. Thus, the bearings work as a whole around a common axis by rolling friction. Example

[0018] like Figures 5 to 6The principle is the same as that of Example 1, and the structure is similar. The difference is that the inner groove 1-2 of the outer ring 1 is provided in the middle of the inner side of the outer ring 1. Example

[0019] like Figures 7 to 8 Compared with Example 1, the principle is the same and the structure is similar. The difference is that: the intermediate wheel 3 and the upper outer ring 5, upper inner ring 6, lower outer ring 7 and lower inner ring 8 are symmetrically arranged in two sets in the vertical direction of the paper. Correspondingly, the middle part of the outer side of the inner ring 2 is provided with two sets of inner ring groove 1 2-1, and the middle part of the inner side of the outer ring 1 is provided with outer ring inner groove 3 1-3. Example

[0020] like Figures 9 to 11 Compared with Example 1, the principle is the same, and the assembly and structure are similar. The difference is that: firstly, in terms of assembly method: the ball 4 is replaced with the roller 4-1, and the intermediate wheel 3 is replaced with the intermediate wheel 2 30; the upper wheel 3-1 and the lower wheel 3-3 of the intermediate wheel 3 are replaced with the upper wheel 2 3-11 and the lower wheel 2 3-12 of the intermediate wheel 2 30, respectively; the upper half-arc 3-5 and the lower half-arc 3-8 are replaced with the upper semi-cylindrical surface 3-13 and the lower semi-cylindrical surface 3-14, and the assembly method is the same. Secondly, in terms of structure: the outer ring 1's inner groove 1-1 is changed to the outer ring inner groove 4-4; the inner ring 2's inner groove 2-1 is changed to the inner ring groove 2-2. Example

[0021] like Figures 12 to 13 Compared with Example 1, the principle is the same and the structure is similar. The difference is that the rolling ball 4 is replaced with an arc-shaped roller 4-2, and the outer ring inner groove 1-1 of the outer ring 1 is replaced with the outer ring inner groove 3-3. Example

[0022] like Figures 14 to 15 Compared with Example 3, the principle is the same and the structure is similar, the difference is that: The ball 4 is changed to roller 4-1, the intermediate wheel 3 is changed to intermediate wheel 2 30; the outer ring inner groove 3 1-3 is changed to outer ring inner groove 5 1-5; the inner ring groove 1 2-1 is changed to inner ring groove 3 2-3. Example

[0023] like Figures 16 to 18Compared with embodiments 1, 2, 3, and 5, the principle is the same and the structure is similar. The difference is that: the lower bottom center of the upper wheel 3-1 of the intermediate wheel 3 is provided with a double-column plug 3-20, which is two partially overlapping cylinders, and the lower end of the overlapping part of these two cylinders is slotted; the upper top center of the lower wheel 3-3 is provided with a central inlet hole 3-19, which extends to a certain depth at the lower end and then splits to both sides to form symmetrical side holes 3-21. During installation, under the action of external force, the double-column plug 3-20 of the upper wheel 3-1 is inserted into the... When the double-pin plug 3-20 is inserted into the bottom of the center inlet hole 3-19 of the lower wheel 3-3, because the front end of the double-pin plug 3-20 is slotted, the double-pin plug 3-20 will separate to the left and right and enter the left and right symmetrical side holes (3-21) respectively. When the double-pin plug 3-20 is fully inserted into the center inlet hole 3-19, the double-pin plug of the upper wheel 3-1 and the lower wheel 3-3 are tightly fixed together, and the intermediate wheel 3 becomes a whole. Example

[0024] like Figures 19 to 22 The bearing assembly method is similar to that of Embodiment 1, except that the intermediate wheel 3 is replaced by intermediate wheel three 300; the upper wheel 3-1 and the lower wheel 3-3 are replaced by upper wheel three 3-15 and lower wheel three 3-16 respectively; for ease of description, it is assumed that the upper cover 9 is fixed on the rotating shaft of the power device, and the lower cover 12 is fixed. When the rotating shaft of the power device (from top to bottom on the paper) starts to rotate clockwise, the upper cover 9 starts to rotate clockwise. The rolling ball 4 starts to rotate in the forward direction under the rolling friction of the inner groove 9-1 of the upper cover 9. Because the complete arc formed by the upper half arc 3-5 and the lower half arc 3-8 of the intermediate wheel three 300 (hereinafter referred to as the complete arc) is set below the two adjacent rolling balls 4, it is equivalent to being sandwiched by the two rolling balls 4 (and there is a certain gap between the two adjacent rolling balls 4). (To avoid frictional resistance, the intermediate wheel 300 rotates in the opposite direction under the rolling friction of the ball 4. The upper wheel 3-1 and lower wheel 3-3 of the intermediate wheel 300 press on the outer support ring platform 11-1 of the outer support ring 11 and the inner support ring platform 10-1 of the inner support ring 10, respectively, and are at a certain distance from the upper cover platform 9-2 of the upper cover 9 (the function of the upper cover platform 9-2 is to prevent the intermediate wheel 3 from leaving the track). Since the inner support ring 10 and the outer support ring 11 are fixed on the inner and outer sides of the upper cover 9, they also rotate clockwise, which perfectly matches the counterclockwise rotation of the intermediate wheel 300. Thus, all the components between the upper cover 9 and the lower cover 12 rotate around the rotation axis of the power device in a whole manner by rolling friction.

[0025] The specific embodiments described above are merely exemplary and are intended to enable those skilled in the art to better understand this patent. They should not be construed as limiting the scope of this patent. Any equivalent changes or modifications made in accordance with the spirit disclosed in this patent shall fall within the scope of this patent.

Claims

1. A zero-power bearing, comprising an inner ring (2), characterized in that... An outer ring (1) is provided around the inner ring (2). Both the outer ring (1) and the inner ring (2) are annular. An inner ring groove (2-1) is provided in the middle waist of the outer side of the inner ring (2). An outer ring inner groove (1-1) is provided in the waist of the inner side of the outer ring (1). A plurality of rolling balls (4) and an intermediate wheel (3) are provided between the inner ring (2) and the outer ring (1). An upper wheel (3-1) is provided at the upper end of the intermediate wheel (3). A groove (3-4) is provided around the upper end of the upper wheel (3-1), and a groove (3-4) is provided around the lower end. The upper half-arc (3-5) has an expansion hole (3-10) at the center of its lower bottom surface. The expansion hole (3-10) has an arc-shaped groove on its side, with a thicker bottom and a thinner inlet. The lower end of the intermediate wheel (3) has a lower wheel (3-3). The lower end of the lower wheel (3-3) has a lower groove (3-9) around its lower end and a lower half-arc (3-8) around its upper end. A cylinder is located at the center of the top surface of the upper end. An expansion screw hole (3-6) is located at the center of the top surface of the cylinder. A side post (3-7) is located on the side. The expansion screw hole... An expansion screw (3-2) is provided inside (3-6). The expansion screw (3-2) is thicker at the top and slightly thinner at the bottom. The lower end can be inserted into the expansion screw hole (3-6). The cylinder and the expansion screw (3-2) can be inserted together into the expansion hole (3-10). At the same time, the side post (3-7) is inserted into the arc-shaped groove, so that the upper half arc (3-5) and the lower half arc (3-8) form a complete arc. The ball (4) is set on the upper half arc (3-5) and the lower half arc (3-8) of the two adjacent intermediate wheels (3) to form a complete arc. The outer ring (1) is formed by the inner groove (1-1) and the inner groove (2-1) of the outer ring (1). The upper outer ring (5) is fitted on the groove (3-4) of the upper wheel (3-1) of the intermediate wheel (3) near the outer ring (1), and the upper inner ring (6) is embedded in the groove (3-4) near the inner ring (2). The lower outer ring (7) is fitted on the groove (3-9) of the lower wheel (3-3) of the intermediate wheel (3) near the outer ring (1), and the lower inner ring (8) is embedded in the groove (3-9) near the inner ring (2). The intermediate wheel (3) can rotate freely.

2. The zero-power bearing according to claim 1, characterized in that... The inner ring (2) is surrounded by an outer ring (1). The inner ring (2) is symmetrically provided with inner ring groove 1 (2-1) on the upper and lower sides of the outer side. The outer ring (1) is provided with outer ring inner groove 3 (1-3) on the inner waist. A plurality of rolling balls (4) and intermediate wheels (3) are provided between the inner ring groove 1 (2-1) of the inner ring (2) and the outer ring inner groove 3 (1-3) of the outer ring (1). The upper inner ring (6) and upper outer ring (5) are respectively provided on the inner and outer sides of the groove (3-4) of the upper wheel (3-1) of the intermediate wheel (3). The lower inner ring (8) and lower outer ring (7) are respectively provided on the inner and outer sides of the groove (3-9) of the lower wheel (3-3) of the intermediate wheel (3). The intermediate wheel (3) can rotate freely.

3. The zero-power bearing according to claim 1, characterized in that... The inner ring (2) is surrounded by an outer ring (1). The middle waist of the outer side of the inner ring (2) is provided with an inner ring groove 1 (2-1). The waist of the outer ring (1) is provided with an outer ring groove 3 (1-3). A plurality of arc-shaped rollers (4-2) and an intermediate wheel (3) are provided between the inner ring (2) and the outer ring (1). The intermediate wheel (3) is provided with an upper wheel (3-1) at its upper end and a lower wheel (3-3) at its lower end. The arc-shaped rollers (4-2) are located on the upper half-arc (3-5) and lower half-arc (3-5) of two adjacent intermediate wheels (3). 8) A complete arc is formed between the outer ring inner groove three (1-3) of the outer ring (1) and the inner ring groove one (2-1) of the inner ring (2). The upper outer ring (5) is fitted on the part of the groove (3-4) of the upper wheel (3-1) of the intermediate wheel (3) near the outer ring (1), and the upper inner ring (6) is embedded in the part near the inner ring (2). The lower outer ring (7) is fitted on the part of the groove (3-9) of the lower wheel (3-3) of the intermediate wheel (3) near the outer ring (1), and the lower inner ring (8) is embedded in the part near the inner ring (2). The intermediate wheel (3) can rotate freely.

4. A zero-power bearing according to claim 1, 2, or 3, characterized in that... The intermediate wheel (3) has an upper wheel (3-1) at its upper end. The upper wheel (3-1) has a groove (3-4) around its upper end and an upper semi-circle (3-5) around its lower end. A double-pin plug (3-20) is set downwards at the center of the bottom surface of the lower end. The double-pin plug (3-20) consists of two partially overlapping cylinders with a groove at the lower end of the overlapping part. The intermediate wheel (3) has a lower wheel (3-3) at its lower end. The lower wheel (3-3) has a lower groove (3-9) around its lower end and a lower semi-circle (3-8) around its upper end. A central inlet hole (3-19) is provided at the center of the top surface. The central inlet hole (3-19) extends to a certain depth at the lower end and then splits to the sides to form symmetrical side holes (3-21). The double-pin plug (3-20) of the upper wheel (3-1) can be inserted into the central inlet hole (3-19) of the lower wheel (3-3) under the action of external force. When the double-pin plug (3-20) is inserted to the bottom of the central inlet hole (3-19), the front end of the double-pin plug (3-20) splits to the left and right and enters the symmetrical side holes (3-21) respectively.

5. A zero-power bearing according to claim 4, characterized in that... The inner ring (2) is surrounded by an outer ring (1). The inner ring (2) is symmetrically provided with inner ring grooves (2-3) on the upper and lower sides of the outer side. The outer ring (1) is provided with an outer ring inner groove (1-5) on the inner waist. A plurality of rollers (4-1) and intermediate wheels (30) are provided between the inner ring groove (2-3) of the inner ring (2) and the outer ring inner groove (1-5) of the outer ring (1). The upper inner ring (6) and the upper outer ring (5) are respectively provided on the inner and outer sides of the groove (3-4) of the upper wheel (3-11) of the intermediate wheel (30). The lower inner ring (8) and the lower outer ring (7) are respectively provided on the inner and outer sides of the groove (3-9) of the lower wheel (3-12) of the intermediate wheel (30). The intermediate wheel (30) can rotate freely.

6. A zero-power bearing, comprising an inner ring (2), characterized in that... The inner ring (2) is surrounded by an outer ring (1). Both the outer ring (1) and the inner ring (2) are annular. The middle waist of the outer side of the inner ring (2) is provided with an inner ring groove 2 (2-2). The waist of the inner side of the outer ring (1) is provided with an outer ring inner groove 4 (1-4). A plurality of rollers (4-1) and an intermediate wheel 2 (30) are provided between the inner ring (2) and the outer ring (1). The upper end of the intermediate wheel 2 (30) is provided with an upper wheel 2 (3-11), and the lower end is provided with a lower wheel 2 (3-12). The upper end of the upper wheel 2 (3-11) is provided with a ring. The intermediate wheel (30) has a groove (3-4), a semi-cylindrical surface (3-13) around its lower end, an expansion hole (3-10) at the center of its lower bottom surface, and an arc-shaped groove on the side of the expansion hole (3-10); the intermediate wheel (30) has a lower wheel (3-12) at its lower end, a groove (3-9) around its lower end, a semi-cylindrical surface (3-14) around its upper end, a cylinder at the center of its upper top surface, an expansion screw hole (3-6) at the center of the top surface of the cylinder, and side posts on its side. 3-7), an expansion screw (3-2) is provided in the expansion screw hole (3-6). The expansion screw (3-2) is thicker at the top and slightly thinner at the bottom. The lower end can be inserted into the expansion screw hole (3-6). The cylinder and the expansion screw (3-2) can be inserted together into the expansion hole (3-10). At the same time, the side post (3-7) is inserted into the arc-shaped groove, so that the upper half-cylindrical surface (3-13) and the lower half-cylindrical surface (3-14) together form a complete cylindrical surface. The roller (4-1) is set on the complete cylindrical surface of two adjacent intermediate wheels (30). Between the outer inner groove four (1-4) of the outer ring (1) and the inner groove two (2-2) of the inner ring (2), the upper outer ring (5) is fitted on the part of the groove (3-4) of the upper wheel two (3-11) of the intermediate wheel two (30) near the outer ring (1), and the upper inner ring (6) is embedded in the part near the inner ring (2). The lower outer ring (7) is fitted on the part of the lower groove (3-9) of the lower wheel two (3-12) of the intermediate wheel two (30) near the outer ring (1), and the lower inner ring (8) is embedded in the part near the inner ring (2). The intermediate wheel two (30) can rotate freely.

7. A zero-power bearing, comprising a top cover (9), characterized in that... A lower cover (12) is provided below the upper cover (9). An upper cover platform (9-2) is provided below the upper cover (9). An upper cover inner groove (9-1) is provided between the upper cover platforms (9-2). The upper cover (9) is annular in shape. An outer support ring (11) is sleeved on the outer side of the upper cover (9), and an inner support ring (10) is embedded on the inner side. An inner support ring platform (10-1) is provided below the inner support ring (10) and outward. An outer support ring platform (11-1) is provided below the outer support ring (11) and inward. A lower cover inner groove (12-1) is provided above the lower cover (12). The upper cover inner groove (9-1) of the upper cover (9) and the lower cover inner groove of the lower cover (12) are connected. A plurality of rolling balls (4) are arranged between (12-1). An intermediate wheel three (300) is arranged below two adjacent rolling balls (4). An upper wheel three (3-15) is arranged at the upper end of the intermediate wheel three (300). An upper inclined wheel (3-17) is arranged around the upper end of the upper wheel three (3-15), and an upper semi-arc (3-5) is arranged around the lower end. An expansion hole (3-10) is arranged at the center of the bottom surface of the lower end. An arc-shaped groove is arranged on the side of the expansion hole (3-10). A lower wheel three (3-16) is arranged at the lower end of the intermediate wheel three (300). A lower inclined wheel (3-18) is arranged around the lower end of the lower wheel three (3-16), and a lower semi-arc is arranged around the upper end. (3-8) A cylinder is provided at the center of the top surface of the upper end. An expansion screw hole (3-6) is provided at the center of the top surface of the cylinder. A side post (3-7) is provided on the side. An expansion screw (3-2) is provided in the expansion screw hole (3-6). The expansion screw (3-2) is thicker at the top and slightly thinner at the bottom. The lower end can be inserted into the expansion screw hole (3-6). The cylinder and the expansion screw (3-2) can be inserted together into the expansion hole (3-10). At the same time, the side post (3-7) is inserted into the arc-shaped groove, so that the upper half arc (3-5) and the lower half arc (3-8) form a complete arc. The rolling ball (4) is set on the upper half arc (3-5) of two adjacent intermediate wheels (300). The complete arc formed together with the lower half arc (3-8) and the inner groove of the upper cover (9-1) of the upper cover (9) and the inner groove of the lower cover (12-1) of the lower cover (12) are located between the upper inclined wheel (3-17) of the intermediate wheel three (300) and the outer support ring platform (11-1), and press on the outer support ring platform (11-1) and maintain a certain distance from the upper cover platform (9-2). The lower inclined wheel (3-18) is located between the upper cover platform (9-2) and the inner support ring platform (10-1), and presses on the inner support ring platform (10-1) and maintains a certain distance from the upper cover platform (9-2). The intermediate wheel three (300) can rotate freely.

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