Portable measuring tool for parallelism of rotary support end face

Abstract

The utility model relates to three row column bearing parallelism measurement technical field, concretely is a kind of portable rotary supporting end surface parallelism frock, including dial gauge, round head pillar, door type frame;The dial gauge needle is contacted with the inner ring of three row column bearing;The round head pillar is contacted with the outer ring of three row column bearing;The door type frame one end is operatively associated with the dial gauge, and the other end is operatively associated with the round head pillar.Solved the problem that the traditional method needs to drive dozens of tons even hundreds of tons of huge bearing rotation, operation is extremely difficult and dangerous etc..The operation object is changed from huge bearing to nimble frock in the present application, movable parallelism measurement is realized, and the operation problem brought by large component rotation is completely solved.

Description

Technical Field

[0001] This utility model relates to the field of parallelism measurement technology for three-row column bearings, specifically a portable tool for measuring the parallelism of the end face of a slewing bearing. Background Technology

[0002] With the rapid development of equipment such as offshore platforms and ultra-large cruise ships, the demand for single-point mooring systems at sea has increased dramatically. Single-point mooring allows platforms and ships to freely rotate around a single mooring point as prevailing winds and sea conditions change, placing the moored vessel in a position of minimum wind, wave, and current coupling resistance and a relatively safe environment. The key component enabling this free rotation is the large slewing bearing.

[0003] The slewing bearing (three-row cylindrical roller type) of a single-point mooring system is prone to large stress and deformation under the coupled action of axial load, overturning moment and radial load. Therefore, the parallelism of the bearing end face is required during installation to avoid bearing deformation, which would affect the safety and reliability of the single-point mooring system.

[0004] The service life of a slewing bearing determines the service life of a mooring system, and the parallelism of the slewing bearing end face is crucial for bearing installation and use. Previously, measuring the parallelism of finished bearing end faces required placing the bearing's reference end face on a horizontal platform, pointing a dial indicator at the bearing end face, rotating the bearing one revolution, and recording the maximum and minimum readings. The difference between the maximum and minimum readings on the dial indicator gave the bearing end face flatness. This measurement process was difficult due to issues such as the large diameter and weight of the bearing, the demanding equipment and personnel requirements for rotating the bearing, and the difficulty in selecting the correct dial indicator support position. To address these problems, a portable fixture for measuring the parallelism of slewing bearing end faces was designed. Utility Model Content

[0005] In view of the shortcomings of existing technologies, this utility model provides a portable fixture for measuring the parallelism of the end face of a slewing bearing. It solves the problems of traditional methods requiring the rotation of massive bearings weighing tens or even hundreds of tons, which are extremely difficult and dangerous to operate. This application transforms the object of operation from the enormous bearing to a lightweight fixture, realizing mobile parallelism measurement and completely solving the operational difficulties caused by the rotation of large components.

[0006] To achieve the above objectives, the present invention provides a portable tooling for measuring the parallelism of the end face of a slewing bearing, comprising a dial indicator, a round-headed support column, and a portal frame; the dial indicator needle contacts the inner ring of the three-row column bearing; the round-headed support column contacts the outer ring of the three-row column bearing; one end of the portal frame is operably associated with the dial indicator, and the other end is operably associated with the round-headed support column.

[0007] Furthermore, the portal frame is provided with a handle, which is operably associated with the portal frame; the handle is used to support the portal frame.

[0008] Furthermore, the dial indicator is fixed to the other end of the portal frame by tightening screws.

[0009] Furthermore, the round-headed support column is fixed to one end of the portal frame by tightening screws.

[0010] Furthermore, the end of the round-headed support that contacts the outer ring of the three-row column bearing has a frustum-shaped structure.

[0011] Furthermore, the tail end of the round-headed support column is provided with a thread, which cooperates with one end of the portal frame to adjust the distance between the head end of the round-headed support column and the outer ring end face of the three-row column bearing.

[0012] The beneficial effects of this invention: Traditional methods require rotating massive bearings weighing tens or even hundreds of tons, making operation extremely difficult and dangerous. This fixture, through its innovative design, integrates the measuring reference (horizontal platform) and dial indicator into a portable frame. During measurement, simply fix the fixture to the bearing end face, and a full rotation of the fixture body completes one revolution of measurement. This transforms the object of operation from a massive bearing to a lightweight fixture, enabling mobile and precise measurement, and completely solving the operational difficulties caused by rotating large components. Attached Figure Description

[0013] Figure 1 This is a diagram showing the usage state of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a bottom view of the present invention; In the diagram: 100, dial indicator. 200. Round-headed support; 210. Head end; 220. Tail end. 300. Door frame; 310. Handle. 400. Tighten the screws. Detailed Implementation

[0014] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0015] like Figure 1-3 As shown, a portable fixture for measuring the parallelism of the end face of a slewing bearing according to an embodiment of the present invention includes a dial indicator 100, a round-headed support column 200, and a portal frame 300; the needle of the dial indicator 100 is in contact with the inner ring of the three-row column bearing; the round-headed support column 200 is in contact with the outer ring of the three-row column bearing; one end of the portal frame 300 is operably associated with the dial indicator 100, and the other end is operably associated with the round-headed support column 200.

[0016] It should be noted that the portal frame 300 can be replaced with a size that is appropriate for the size of the bearing.

[0017] In one embodiment, the portal frame 300 is provided with a handle 310, which is operatively associated with the portal frame 300; the handle 310 is used to support the portal frame 300.

[0018] In one embodiment, the dial indicator 100 is fixed to the other end of the portal frame 300 by tightening screws 400.

[0019] In one embodiment, the round-headed support column 200 is fixed to one end of the portal frame 300 by tightening screws 400.

[0020] In one embodiment, the head end 210 of the round-headed support 200 that contacts the outer ring of the three-row column bearing has a frustum-shaped structure.

[0021] In one embodiment, the head end 220 of the round-headed support column 200 is provided with threads, which cooperate with one end of the portal frame 300 to adjust the distance between the head end 210 of the round-headed support column 200 and the outer ring end face of the three-row column bearing.

[0022] The aforementioned portable fixture for measuring the parallelism of a slewing bearing end face is used to adjust the vertical distance of the round-headed support column 200, place the fixture on the bearing end face, move the fixture, and determine the bearing end face parallelism by reading the dial indicator 100.

[0023] To facilitate the measurement of bearing end face parallelism and reduce the need for lifting and rotating the bearing during measurement, this invention provides a portable fixture for measuring the end face parallelism of a slewing bearing. This fixture reduces the lifting and rotating process of the bearing by adjusting the vertical distance of the round-headed support column 200. The fixture is placed on the bearing end face and moved one revolution. The maximum and minimum readings of the dial indicator are read. The difference between the maximum and minimum readings is the flatness of the bearing end face.

[0024] The method is as follows: First, place the bearing ring on the machining platform. After the workpiece is placed horizontally, adjust the relative position of the gantry frame and the bearing. After the relative distance is reasonable, install the round head support and fix the round head support 200 by tightening the screw 400. Install the dial indicator 100 on the other side of the gantry frame, with the dial indicator 100 probe pointing to the bearing end face. Adjust the dial indicator 100 pointer to a suitable reading range, press the pointer in 2-3 turns, then align the pointer to zero. Rotate the fixture and read the maximum and minimum values ​​of the dial indicator 100. The maximum value of the pointer represents the maximum outward offset of the bearing end face from the standard point. The minimum value of the pointer represents the sum of the inward and outward offsets of the maximum inward offset of the bearing end face from the standard point. This sum is the parallelism of the bearing end face. The reading method is: the maximum value of the pointer minus the minimum value of the pointer.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

Claims

1. A portable fixture for measuring the parallelism of the end face of a slewing bearing, characterized in that: include The dial indicator needle contacts the inner ring end face of the three-row column bearing; The round-headed support column contacts the outer ring end face of the three-row column bearing; A portal frame, one end of which is operatively associated with the round-headed support column, and the other end of which is operatively associated with the dial indicator.

2. The portable fixture for measuring the parallelism of the end face of a slewing bearing according to claim 1, characterized in that: The portal frame is provided with a handle, which is operably associated with the portal frame; the handle is used to support the portal frame.

3. The portable fixture for measuring the parallelism of the end face of a slewing bearing according to claim 1, characterized in that: The dial indicator is fixed to the other end of the portal frame by tightening screws.

4. The portable fixture for measuring the parallelism of the end face of a slewing bearing according to claim 1, characterized in that: The round-headed support column is fixed to one end of the portal frame by tightening screws.

5. The portable fixture for measuring the parallelism of the end face of a slewing bearing according to claim 1, characterized in that: The head end of the round-headed support column that contacts the outer ring end face of the three-row column bearing has a frustum-shaped structure.

6. The portable fixture for measuring the parallelism of the end face of a slewing bearing according to claim 1, characterized in that: The tail end of the round-headed support column is threaded and engages with one end of the portal frame to adjust the distance between the head end of the round-headed support column and the outer ring end face of the three-row column bearing.

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