Bearing support and rotary supporting platform for large bearing ring

Abstract

A bearing support (1) of a large bearing ring (2) is used for bearing the horizontally placed large bearing ring (2) through multi-point supporting and comprises at least one bearing roller (11) and at least one limiting roller (12). Wherein the carrier roller (11) is arranged to extend substantially horizontally for supporting the bearing ring (2) in a rolling manner in the vertical direction in a circumferential rotational movement substantially around the center of the latter; the limiting roller (12) is arranged to extend approximately vertically and used for limiting radial displacement of the bearing ring (2) when the bearing ring (2) does circumferential rotary motion, and the limiting roller (12) is further arranged to be capable of rotating at the same linear speed along with the bearing ring (2) when making contact with the bearing ring (2). In addition, the utility model further provides a rotary supporting platform (10) of the large bearing ring, the rotary supporting platform comprises at least three bearing supports (1), and the three bearing supports (1) are arranged to be approximately distributed on a circumferential track with the diameter matched with that of the bearing ring (2) at equal intervals.

Description

Technical Field

[0001] The utility model relates to a bracket for carrying a large bearing ring, and a bearing ring rotary support platform composed of the brackets and used for supporting the bearing ring to perform circular rotary motion. Background Art

[0002] The grinding of bearing rings is of great significance because smooth raceways can improve the load-bearing capacity and improve the lubrication of bearings. In the field of wind power, the grinding of large bearing rings can currently be implemented by robots. The robot usually includes a rotary support platform (hereinafter referred to as "support platform" or "platform") for supporting the bearing ring to make a planar rotational motion and a mechanical arm that grinds the surface (especially the raceway) of the bearing ring through a grinding tool (hereinafter referred to as "grinding tool"). With the large-scale development of wind turbines, the size of bearings has also continued to increase, resulting in the inability of purchased robots to process bearing rings whose sizes exceed the diameter range allowed by the platform. Although the new generation of robots can be designed with a larger support platform, the resulting production delays and cost increases are not what users want. More importantly, even if the robot can process larger bearing rings, switching between bearing rings of different sizes is not only complicated in process, but also expensive in consumables, which brings double pressure on production time and cost.

[0003] Reality calls for a bearing ring slewing support platform that can adapt to bearing rings of different sizes and has a simple switching process and low implementation cost. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a rotary support platform for carrying a large horizontally placed bearing ring. The platform includes at least three brackets designed to form multi-point support, and the at least three brackets are arranged to be distributed approximately at equal intervals on a circumferential track whose diameter matches the bearing ring. Each bracket includes at least one bearing roller and at least one limiting roller. The at least one bearing roller is arranged to extend approximately horizontally, and is used to support the bearing ring in a rolling manner in the vertical direction to perform a circular rotational motion. The at least one limiting roller is arranged to extend approximately vertically, and is used to limit the radial displacement of the bearing ring when the bearing ring performs a circular rotational motion. In addition, the limiting roller is also arranged to be able to rotate with the bearing ring at the same linear speed when in contact with the bearing ring. In addition, each bracket is arranged so that the axial direction of its bearing roller is approximately aligned with the center of the circumferential track, so that the limiting roller is positioned at a position that makes the bearing ring fully concentric with the circumferential track. Furthermore, at least one of the bearing rollers of all the brackets is configured as an active roller for providing the power required to drive the bearing ring to perform circular rotational motion, while the remaining bearing rollers are configured as driven rollers for supporting the bearing ring to perform circular rotational motion following the active roller.

[0005] The above-mentioned bearing ring slewing support platform formed by the bracket through multi-point support can effectively adapt to bearing rings of various sizes. Theoretically, as long as the site is large enough to allow the brackets to be distributed on a larger circular trajectory, there will be no size restrictions on the bearing rings. Not only that, since the load-bearing roller can be set to have a certain length, as long as the change in the radius of the bearing ring does not exceed the range of the said length, all brackets can adapt to the size changes of the bearing ring within the said length range without adjusting the position. This means that the support platform composed of the above-mentioned brackets can adapt to a series of bearing rings with radii that vary within the length range of the load-bearing roller, without having to adjust the position of the bracket every time a bearing ring of a different size is replaced. The bearing ring slewing support platform with both of the above-mentioned characteristics has an incomparable advantage over any existing robot in adapting to changes in the size of the bearing ring.

[0006] Various implementations and beneficial technical effects of the present invention are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 A schematic diagram showing the structure of the bearing ring slewing support platform composed of at least three brackets; and

[0008] Figure 2 A schematic diagram showing the structure of a single bracket. DETAILED DESCRIPTION

[0009] In the following description, the same or similar reference numerals are always used to indicate the same or similar components. In addition, the terms indicating directions, such as "axial", "radial", "circumference" and "center", refer to the axial, radial, circumference and center of the described components unless otherwise limited or specified.

[0010] Figure 1 A schematic diagram showing the structure of a bearing ring slewing support platform composed of at least three brackets. As shown in the figure, the slewing support platform 10 for supporting a large horizontal bearing ring 2 is designed to be composed of at least three brackets 1 forming multi-point support (for the purpose of simplicity, the bearing ring 2 is Figure 1 The at least three brackets 1 are arranged to be distributed approximately equally spaced on a circular track (not marked) whose diameter matches the bearing ring 2. Here, the "matching" should be understood as the circular track being arranged to have a diameter that can ensure that the horizontally placed bearing ring 2 falls into the annular area that the rotating support platform 10 can provide support for in the radial direction, as further described below.

[0011] Figure 2 The schematic diagram of the structure of a single support is shown. As shown in the figure, each support 1 includes a bearing roller 11 and a limiting roller 12. Figure 1 and 2 It can be seen that the bearing roller 11 is configured to extend approximately horizontally, and is used to support the horizontally placed bearing ring 2 in a rolling manner in the vertical direction to make a circular rotation, while the limiting roller 12 is configured to extend approximately vertically, and is used to limit the radial displacement of the bearing ring 2 when it makes a circular rotation, so that the bearing ring 2 can make a circular rotation approximately around the center of the circular track. In other words, the limiting roller 12 is used to ensure that the bearing ring 2 always remains fully concentric with the circular track during the circular rotation process. In addition, when in contact with the bearing ring 2, the limiting roller 12 can also rotate with the bearing ring 2 at the same linear speed to avoid damage to the bearing ring caused by collision.

[0012] exist Figure 1 In the slewing support platform 10 shown, each bracket 1 is arranged so that the axial direction of its bearing roller 11 is roughly aligned with the center of the circumferential track, so that the bearing rollers 11 of the three brackets 1 form a circumferential angle of approximately 120 degrees. The above arrangement of the brackets 1 makes the length L of the bearing roller 11 actually become the upper limit of the range of radius variation of the bearing ring 2, thereby forming an annular area in the radial direction that the platform 10 mentioned above can provide support. In short, the range of radius variation of the bearing ring that the slewing support platform can allow depends on the axial length of the bearing roller.

[0013] In the above-mentioned support platform 10, at least one of the three brackets 1 is provided with a motor 14 for driving the bearing roller 11 therein to roll. As a specific embodiment, the drive can be realized by means of a transmission mechanism such as a belt, a gear, etc. (not shown). In the present utility model, the bearing roller that is actively rotated by the motor is defined as an "active roller" and is used to provide the power required to drive the bearing ring to perform a circular rotation motion, while the remaining bearing rollers that are dragged and rolled by the bearing ring are defined as "driven rollers" and are used to support the bearing ring to follow the active roller to perform a circular rotation motion.

[0014] exist Figure 1 and 2In the specific embodiment shown, two groups of limiting rollers 12 (two in each group) are formed on each bracket 1, which are respectively located on both sides of the supporting roller 11 in the axial direction. The above design has two purposes: first, to increase the convenience of use of the bracket 1, so that any side of the bearing roller 11 in the axial direction can be used to support the bearing ring 2, so that the limiting roller 12 on the corresponding side can be used to prevent the bearing ring 2 from radial displacement; second, to improve the equipment utilization rate of the bracket 1, allowing the bearing roller 11 to support two bearing rings 2 on both sides of its axial direction, so that the two groups of limiting rollers 12 can be used to prevent the two bearing rings 2 from radial displacement. When used for the second purpose, the same bracket can be used to form two groups of rotary support platforms at the same time (that is, shared by the two groups of platforms), thereby improving the equipment utilization rate of the bracket.

[0015] In order to limit the radial displacement of the bearing ring 2, the position of the limiting roller 12 must be fixed in advance. Figure 2 In the embodiment shown, the limiting roller 12 can be fixed in a slide groove or guide rail 13 arranged parallel to the bearing roller 11 by a fastener (not marked). In this case, the actual length L of the slide groove or guide rail 13 determines the position adjustable range of the limiting roller 12 in the axial direction of the bearing roller 11. A preferred embodiment is that the position adjustable range of the two groups of limiting rollers 12 respectively covers at least L / 2 distance from both ends of the bearing roller 11 in its axial direction, thereby ensuring that the two groups of limiting rollers 12 combined can just limit the bearing ring 2 within the entire length range of the bearing roller 11. As another option, the bracket can also be formed to include only one group of limiting rollers 12 (each group still has two). In this case, a preferred embodiment is to make the position adjustable range of the group of limiting rollers 12 cover the entire length L of the bearing roller 11, so that the bearing roller 11 can limit the bearing ring 2 within the entire length range of the bearing roller 11.

[0016] In order to prevent the bearing ring 2 from being damaged due to collision during the contact process with the limiting roller 12, the limiting roller 12 is made of a flexible material at least on its surface. The flexible material includes but is not limited to nylon, rubber or other polymer materials with a buffering effect. In addition, the flexible material needs to have a sufficient thickness to buffer the impact that may be generated by the huge mass of the bearing ring when it contacts the limiting roller. The use of flexible materials can not only prevent the bearing ring from being damaged, but also prevent the bracket from becoming unstable or shifting during the impact.

[0017] The slewing support platform 10 formed by the three brackets 1 through multi-point support can be used to support the large horizontal bearing ring 2 to perform circular slewing motion, so that the user can perform mechanical processing involving the local ring body including grinding and polishing on the bearing ring. The processing can be performed manually by the operator or automatically by the robot (robot). Taking manual grinding as an example, the bearing roller can be set so that the bearing ring located above it is roughly in a comfortable position for the operator's arm when grinding the bearing ring, for example, in front of the chest, in front of the abdomen, or in the natural drooping position of the arm. For this purpose, the bracket can also be provided with an adjustable balanced arm (commonly known as a "floating arm") 15 for supporting or assisting in supporting a processing tool (for example, a grinding tool) 16, so as to facilitate the placement of the tool or relieve arm fatigue.

[0018] The bracket for carrying a large bearing ring and the slewing support platform formed by the bracket described above are not limited by the specific implementation method, and the more general technical solution shall be subject to the limitations in the attached claims. Any changes and improvements to the utility model, as long as they comply with the limitations of the attached claims, shall fall within the scope of protection of the utility model.

Claims

1. A bearing bracket (1) for a large bearing ring (2), used for supporting a large bearing ring (2) placed horizontally through multi-point support, characterized in that: Include: At least one bearing roller (11) is arranged to extend substantially horizontally and is used to support the bearing ring (2) in a rolling manner in a vertical direction so as to perform a circular rotation movement substantially around the center of the bearing ring; and At least one limiting roller (12) is arranged to extend approximately vertically, and is used to limit the radial displacement of the bearing ring (2) when the bearing ring (2) performs a circular rotation motion. Moreover, the at least one limiting roller (12) is also arranged to be able to rotate with the bearing ring (2) at the same linear speed when in contact with the bearing ring (2).

2. The load-bearing bracket (1) according to claim 1, characterized in that: The limiting roller (12) is arranged to be positionally adjustable in the axial direction of the carrying roller (11).

3. The load-bearing bracket (1) according to claim 2, characterized in that: The position adjustment is achieved by positioning the limiting roller (12) in a guide rail or a slide groove (13) arranged parallel to the carrying roller (11).

4. The load-bearing bracket (1) according to claim 3, characterized in that: The limiting rollers (12) are formed into a group, and their position adjustable range covers the entire length of the carrying roller (11).

5. The load-bearing bracket (1) according to claim 3, characterized in that: The limiting rollers (12) are formed into two groups, and their adjustable position ranges respectively cover at least a distance L / 2 from both ends of the bearing roller (11) in the axial direction, where L is the axial length of the limiting roller (12).

6. The load-bearing bracket (1) according to any one of claims 1 to 5, characterized in that: The bearing roller (11) and the limiting roller (12) are both covered with a flexible material for preventing the bearing ring (2) from being damaged by collision.

7. The load-bearing bracket (1) according to claim 6, characterized in that: The bearing support (1) is provided with an adjustable balancing arm (15) for supporting a processing tool (16).

8. The load-bearing bracket (1) according to claim 7, characterized in that: The carrying roller (11) is arranged so that the bearing ring (2) located above it is approximately at a comfortable height within the reach of an operator's arms when processing the bearing ring.

9. A slewing support platform (10) for a large bearing ring (2), used for supporting a large bearing ring (2) placed horizontally, comprising at least three supporting brackets (1) according to any one of claims 1 to 8, wherein the at least three supporting brackets (1) are arranged to be distributed at approximately equal intervals on a circumferential track whose diameter matches the bearing ring (2), wherein: Each bearing bracket (1) is arranged so that the axial direction of its bearing roller (11) is roughly aligned with the center of the circumferential track, and its limiting roller (12) is positioned at a position where the bearing ring (2) is fully concentric with the circumferential track; and At least one of the bearing rollers (11) of all the bearing brackets (1) is configured as a driving roller for providing the power required to drive the bearing ring (2) to perform circular rotational motion, while the remaining bearing rollers (11) are configured as driven rollers for supporting the bearing ring (2) to perform circular rotational motion following the driving roller.

10. The slewing support platform (10) according to claim 9, characterized in that: The active roller is driven by a motor (14) arranged on the bearing bracket (1).

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