Bearing retainer bevel measuring tool

Abstract

The utility model relates to a kind of measuring tool for four-row cylindrical roller bearing's check ring bevel, including measuring base, measuring base has the reference surface of level, the side surface of check ring face is the detection surface of the plane and bevel of succession to roller, the reference surface of measuring base and the plane portion of detection surface are in close contact;Measuring base is provided with the first assembly hole and the second assembly hole of the through of perpendicular to reference surface, limit piece is assembled in the first assembly hole, limit piece and the circumference of check ring are in close contact, the second assembly hole is equipped with measuring table in, the measuring head of measuring table contacts the bevel portion of detection surface, the distance between limit piece and the measuring head of measuring table is the inspection distance of check ring bevel.It can be quickly and accurately measured that bevel is to the distance of end surface by the measuring tool, can be directly measured on machine tool in processing process, simple and portable, reduce the measuring time of blanking again on three coordinate measuring instrument, reduce the time waste in processing process.

Description

Technical Field

[0001] This utility model belongs to the field of bearing testing technology, specifically relating to a measuring fixture for the retaining ring inclined surface of a four-row cylindrical roller bearing. Background Technology

[0002] Four-row cylindrical roller bearings with retaining rings for rolling mills are shown in [reference]. Figure 1 It consists of eight components: 01 outer ring, 02 inner ring, 04 roller, 06 and 16 cage washers, 11 outer retaining ring, 61 middle retaining ring, and 09 support.

[0003] In this type of bearing, the outer and middle retaining rings act as retaining edges for the outer ring. Therefore, a ramp is designed on the roller-facing side to ensure good contact with the roller end face. To ensure controllable deviations in the initial position and angle of the ramp, it is necessary to measure the distance from the ramp to the end face at a fixed inspection distance. The ramp angle of the retaining ring is very small, and the measurement point distance tolerance zone is very small. Precise positioning of the inspection distance is required to ensure accurate measurement results. Therefore, a fixture for measuring the distance of the ramp surface of a four-row cylindrical roller bearing retaining ring is needed. Summary of the Invention

[0004] In view of the defects of the prior art, the purpose of this utility model is to provide a bearing retaining ring inclined surface measuring fixture that can accurately measure the distance from the inclined surface to the end face at a certain fixed inspection distance.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a measuring fixture for measuring the inclined surface of a bearing retaining ring, comprising a measuring base, wherein the measuring base has a horizontal reference surface, and the side surface of the retaining ring facing the roller is a detection surface where the plane and the inclined surface are connected, and the reference surface of the measuring base and the plane portion of the detection surface are in contact; the measuring base is provided with a first mounting hole and a second mounting hole perpendicular to the reference surface, wherein a limiting member is installed in the first mounting hole and is in contact with the circumferential surface of the retaining ring, and a measuring gauge is installed in the second mounting hole, wherein the probe of the measuring gauge contacts the inclined portion of the detection surface, and the distance between the limiting member and the probe of the measuring gauge is the inspection distance of the inclined surface of the retaining ring.

[0006] Furthermore, the straight-line distance from the contact surface of the limiting member and the retaining ring to the measuring probe is the inspection distance of the retaining ring's inclined surface.

[0007] Furthermore, the limiting component is a cylindrical pin.

[0008] Furthermore, the measuring base is provided with a limiting member locking screw hole perpendicular to the first assembly hole, and a limiting member locking screw is installed in the limiting member locking screw hole for fixing the limiting member.

[0009] Furthermore, the measuring base is provided with a measuring gauge locking screw hole, and a measuring gauge locking screw is installed in the measuring gauge locking screw hole for fixing the measuring gauge.

[0010] Furthermore, the second mounting hole has an opening extending to the edge of the measuring base, and the measuring gauge locking screw hole passes through both ends of the opening. The measuring gauge locking screw pulls the two ends of the opening together, reducing the diameter of the second mounting hole and locking the measuring gauge.

[0011] Furthermore, the measuring instrument is a dial indicator.

[0012] Furthermore, the measuring fixtures include various specifications, with corresponding inspection distances of 17.5mm, 20mm, 22.5mm, 25mm, 27mm, 30mm, 35mm, 40mm, and 46mm.

[0013] The beneficial effects of this utility model are as follows: the distance from the inclined plane to the end face can be measured quickly and accurately using this measuring fixture. It can be measured directly on the machine tool during the processing, is simple and portable, and reduces the measurement time of loading the material onto the coordinate measuring machine, thus reducing time waste during the processing. Attached Figure Description

[0014] Figure 1 Four-row cylindrical roller bearings with retaining rings for use in rolling mills; Figure 2 This is a schematic diagram of the outer retaining ring; Figure 3 This is a schematic diagram of the middle retaining ring; Figure 4 for Figure 2 and Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram illustrating the measurement principle of the measuring fixture. Figure 6 For measuring the three-dimensional view of the base; Figure 7 This is a cross-sectional view of the measurement base section; Figure 8 for Figure 7 AA section view; In the diagram: 1. Measuring base; 2. First mounting hole; 3. Second mounting hole; 4. Cylindrical pin; 5. Dial indicator; 6. Cylindrical pin locking screw hole; 7. Dial indicator locking screw hole; 8. Opening; 9. Retaining ring. M1, the inspection surface of the retaining ring; M2, the circumferential surface of the retaining ring; D. Check the distance. Detailed Implementation

[0015] 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.

[0016] See appendix Figure 1-4 This refers to the distance from the inclined plane to the end face at a fixed inspection distance that needs to be measured. For example... Figure 4 As shown, at an inspection distance of 37mm, the standard distance from the inclined plane to the end face is 0.035±0.003mm. The measurement point is within a very small tolerance range, requiring precise positioning of the inspection distance for measurement to ensure accurate measurement results.

[0017] A measuring fixture for the inclined surface of a bearing retaining ring is shown in the appendix. Figure 5-8 The system includes a measuring base 1, which has a horizontal reference surface. The side surface of the retaining ring facing the roller is a detection surface M1 where a plane and an inclined plane meet smoothly. The reference surface of the measuring base 1 and the plane portion of the detection surface M1 are in contact. The measuring base 1 is provided with a first mounting hole 2 and a second mounting hole 3 perpendicular to the reference surface. A cylindrical pin 4 is installed in the first mounting hole 2, and the cylindrical pin 4 is in contact with the circumferential surface M2 of the retaining ring. The measuring base 1 is provided with a vertical... A cylindrical pin locking screw is installed in the cylindrical pin locking screw hole 6 of the first mounting hole 2 to fix the cylindrical pin 4; a dial indicator 5 is installed in the second mounting hole 2, and a dial indicator locking screw is installed in the dial indicator locking screw hole 7 on the measuring base 1 to fix the dial indicator 5; the probe of the dial indicator 5 contacts the inclined surface of the detection surface M1, and the straight distance from the contact surface of the cylindrical pin 4 and the retaining ring to the probe of the dial indicator 5 is equal to the inspection distance of the inclined surface of the retaining ring.

[0018] It should be noted that the length of the inspection distance is a known value that meets the product requirements or testing requirements.

[0019] Furthermore, the second mounting hole 3 has an opening 8 extending to the edge of the measuring base 1. The dial indicator locking screw hole 7 passes through both ends of the opening 8. The dial indicator locking screw pulls the two ends of the opening 8 together, reducing the diameter of the second mounting hole 3 and locking the dial indicator 5.

[0020] Furthermore, the measuring fixtures include various specifications with corresponding inspection distances of 17.5mm, 20mm, 22.5mm, 25mm, 27mm, 30mm, 35mm, 40mm, and 46mm, totaling nine types, which can cover existing processing models.

[0021] Measurement Method: First, select a suitable measuring fixture (measuring base 1) according to the inspection distance of the retaining ring to be measured. Install the cylindrical pin 4 and dial indicator 5 and tighten them with screws. Place the retaining ring workpiece flat on the platform, with the inspection surface M1, where the angle to be measured, facing upwards. First, set the dial indicator 5 of the measuring fixture to 0 on the flat end face of the retaining ring or the measuring platform. Then, mark the dial indicator on the inclined surface of the retaining ring, take multiple measurements, find the point of maximum runout, and obtain the measurement result. This fixture can quickly and accurately measure the distance from the inclined surface to the end face. It can be measured directly on the machine tool during processing, is simple and portable, reduces the time spent on material preparation and then on the coordinate measuring machine, and reduces time wasted during processing.

[0022] It should be noted that the parts of this utility model not described in detail are existing technologies.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] The above-listed embodiments are merely preferred embodiments of this utility model. Obviously, this utility model is not limited to the above embodiments and many variations are possible. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this utility model should be considered within the protection scope of this utility model.

Claims

1. A measuring fixture for the inclined surface of a bearing retaining ring, characterized in that: The device includes a measuring base with a horizontal reference surface. The side surface of the retaining ring facing the roller is a detection surface where a plane and an inclined plane meet. The reference surface of the measuring base and the plane portion of the detection surface are in contact. The measuring base is provided with a first mounting hole and a second mounting hole that are perpendicular to the reference surface. A limiting component is installed in the first mounting hole and is in contact with the circumferential surface of the retaining ring. A measuring gauge is installed in the second mounting hole, and the probe of the measuring gauge contacts the inclined portion of the detection surface. The distance between the limiting component and the probe of the measuring gauge is the inspection distance of the inclined surface of the retaining ring.

2. The bearing retaining ring inclined surface measuring fixture according to claim 1, characterized in that: The straight-line distance from the contact surface of the limiting member and the retaining ring to the probe of the measuring instrument is the inspection distance of the retaining ring's inclined surface.

3. The bearing retaining ring inclined surface measuring fixture according to claim 1, characterized in that: The limiting component is a cylindrical pin.

4. The bearing retaining ring inclined surface measuring fixture according to claim 1, characterized in that: The measuring base is provided with a limiting component locking screw hole perpendicular to the first assembly hole, and a limiting component locking screw is installed in the limiting component locking screw hole to fix the limiting component.

5. The bearing retaining ring inclined surface measuring fixture according to claim 1, characterized in that: The measuring base is provided with a measuring gauge locking screw hole, and a measuring gauge locking screw is installed in the measuring gauge locking screw hole to fix the measuring gauge.

6. The bearing retaining ring inclined surface measuring fixture according to claim 5, characterized in that: The second mounting hole has an opening extending to the edge of the measuring base. The measuring gauge locking screw hole passes through both ends of the opening. The measuring gauge locking screw pulls the two ends of the opening together, reducing the diameter of the second mounting hole and locking the measuring gauge.

7. The bearing retaining ring inclined surface measuring fixture according to claim 1, characterized in that: The measuring instrument is a dial indicator.

8. The bearing retaining ring inclined surface measuring fixture according to claim 1, characterized in that: The measuring fixtures come in various specifications, with corresponding inspection distances of 17.5mm, 20mm, 22.5mm, 25mm, 27mm, 30mm, 35mm, 40mm, and 46mm.

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