Support device for measuring parallelism error of end face of oversize bearing ring

Abstract

An oversize bearing ring end face parallelism error measurement supporting device comprises a measurement platform serving as a reference plane and a supporting assembly, the supporting assembly comprises at least three sets of bottom plates, the bottom planes of the bottom plates are attached to the measurement platform, and supporting rods used for supporting a measured ring are arranged on the top planes of the bottom plates. The arc surface of the top of the supporting rod is in line contact with the bottom surface of the detected ferrule, positioning fulcrums used for positioning the outer diameter surface of the detected ferrule are arranged on the two sets of bottom plates respectively, and the positioning fulcrums are installed on fulcrum columns located on the bottom plates. According to the utility model, the positions of the supporting rod, each positioning fulcrum and the gauge stand can be rapidly adjusted through the modular design, so as to flexibly adapt to oversize ferrules of different specifications; the supporting rod supports the ferrule, so that the ferrule is relatively easy to rotate, and the efficiency is relatively high; the reference plane and the rigid fulcrum structure are combined, so that the measurement efficiency and repeatability are remarkably improved, meanwhile, the dependence on a three-coordinate measuring machine is reduced, and the cost advantage is outstanding.

Description

TECHNICAL FIELD

[0001] The utility model relates to the detection technical field of super large bearing, concretely to a super large bearing ring end face parallelism difference measurement support device. BACKGROUND

[0002] The size of super large bearing is generally big and heavy, and the parallelism difference is also an important point of such bearing parts, which will affect the axial stability of the bearing, and make the bearing possibly vibrate and produce noise when running at high speed, thereby affecting the overall performance and service life of the bearing. For the detection of the parallelism difference of bearing parts, small, medium and large bearings generally use bearing height measuring instruments to measure, that is, the bearing is directly placed on the instrument platform, the instrument is set to contact the bearing end face, and then the bearing is rotated and the instrument value variation is observed; while super large bearings are generally measured by using a caliper, a micrometer or a three-coordinate measuring machine. However, for some relatively precise super large bearings, the precision requirement of the parallelism difference of the ring end face is high, and the precision of the caliper and the micrometer cannot meet the measurement requirement; although the three-coordinate measuring machine can measure with high precision, it has high cost and low efficiency; if the bearing height instrument is directly used for measurement, although the precision is high, the bearing is difficult to rotate, which greatly increases the labor intensity of workers and has low efficiency. UTILITY MODEL CONTENTS

[0003] Based on the problems existing in the prior art, the purpose of the utility model is to provide a super large bearing ring end face parallelism difference measurement support device with low cost and high measurement precision.

[0004] The technical scheme adopted by the utility model is: a super large bearing ring end face parallelism difference measurement support device, comprising a measurement platform as a reference plane and a support assembly on the measurement platform, the support assembly comprises at least three groups of bottom plates, the bottom plane of the bottom plate is attached to the measurement platform, a support rod for supporting the measured ring is arranged on the top plane of the bottom plate, the circular arc surface at the top of the support rod forms linear contact with the bottom surface of the measured ring, and a positioning fulcrum for positioning the outer diameter surface of the measured ring is further arranged on two groups of bottom plates.

[0005] As a preferred scheme, the top plane of the bottom plate is provided with a straight groove, and the support rod is clamped in the straight groove.

[0006] As a preferred scheme, the bottom of the support rod is provided with a mounting plane, and the support rod is fixed in the straight groove of the bottom plate through a connecting piece.

[0007] As a preferred scheme, the fulcrum column is fixed in the straight groove of the bottom plate through a connecting piece.

[0008] As a preferred solution, the fulcrum column is of T-shaped structure, the transverse part of which is fixed in the straight slot by locking screw, and the longitudinal part of which is used for mounting the positioning fulcrum.

[0009] As a preferred solution, the positioning fulcrum is composed of a positioning end and a connecting end, the positioning end of which is mounted on the fulcrum column through the connecting end.

[0010] As a preferred solution, the positioning end is of columnar body structure, and the end part of the columnar body structure in contact with the outer diameter surface of the measured bearing is provided with a ball.

[0011] As a preferred solution, the connecting end is composed of two half-ring clamping rings and locking screws, and the height of the positioning end on the fulcrum column can be adjusted by controlling the locking screws.

[0012] As a preferred solution, a meter shelf for mounting a measuring meter is further arranged at the upper end of one of the fulcrum columns.

[0013] The beneficial effects of the present application are:

[0014] Based on the defects existing in the prior art, the present application provides a support device for measuring the parallel difference of the end face of an extra-large bearing ring, which optimally designs the support assembly as follows: support rods are arranged on at least three groups of bottom plates, the arc surface at the top of the support rods is in linear contact with the bottom surface of the measured ring, and a positioning fulcrum and a fulcrum column for positioning the outer diameter surface of the measured ring are further arranged on two of the groups of bottom plates, respectively. The support rods, the positioning column and the positioning fulcrum are used in cooperation with a measuring meter to measure the parallel difference of the end face of an extra-large bearing ring, and the device has the advantages of low cost, high precision and high efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0016] Figure 1 It is a structural schematic diagram of the whole of the present application.

[0017] Figure 2 It is a side view of the whole of the present application.

[0018] Figure 3 It is a top view of the whole of the present application.

[0019] Figure 4 It is a schematic diagram of the combination of the bottom plate and the fulcrum column in the present application.

[0020] Reference numerals: 1, measuring platform, 2, measured ring, 3, bottom plate, 4, measuring table, 5, fulcrum column A, 6, support rod, 7, fulcrum column B, 8, positioning fulcrum A, 9, positioning fulcrum B, 10, table stand. DETAILED DESCRIPTION

[0021] In the following, the utility model will be described in detail through exemplary embodiments. However, it should be understood that the elements, structures and features in one embodiment can also be beneficially combined into other embodiments without further description.

[0022] It should be noted that: unless otherwise defined, the technical terms or scientific terms used in this utility model should be understood as the usual meaning by those skilled in the art to which the utility model belongs. The similar words such as "one", "a" or "the" used in the utility model patent application description and claims do not express quantity limitation, but indicate that there is at least one. The similar words such as "include" or "contain" indicate that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, but do not exclude other elements or objects with the same function.

[0023] A super large bearing ring end face parallelism difference measuring support device, comprising a measuring platform as a reference plane and a support assembly on the measuring platform, the support assembly comprising at least three groups of bottom plates, the bottom plane of the bottom plate is attached to the measuring platform, a support rod for supporting the measured ring is arranged on the top plane of the bottom plate, the circular arc surface at the top of the support rod forms linear contact with the bottom surface of the measured ring, and positioning fulcrums for positioning the outer diameter surface of the measured ring are further arranged on two groups of bottom plates respectively, and the positioning fulcrums are installed on the fulcrum columns on the bottom plates.

[0024] In order to more clearly describe the specific structural composition of the measuring support device and the measuring process of the bearing ring, the accompanying drawings are combined Figures 1-4 The detailed description is as follows:

[0025] As Figures 1-3 shown, a super large bearing ring end face parallelism difference measuring support device mainly comprises a measuring platform 1, a measured ring 2, a bottom plate 3, a measuring table 4, a fulcrum column A 5, a support rod 6, a fulcrum column B 7, a positioning fulcrum A 8, a positioning fulcrum B 9 and a table stand 10, the bottom plate 3 can be provided with three or more than three, three bottom plates 3 are adopted in the embodiment, the support rods 6 are arranged on the three bottom plates 3 respectively, the fulcrum column A 5 and the positioning fulcrum A 8 are installed on one of the bottom plates, the fulcrum column B 7 and the positioning fulcrum B 9 are installed on the other bottom plate 3, and the measuring table 4 is installed on the fulcrum column A 5 through the table stand 10.

[0026] In the scheme, the measuring platform 1 can adopt a high-precision measuring marble platform as the reference plane of the device, which has excellent stability and anti-deformation ability, ensures the absolute level of the measurement reference, and provides protection for the overall precision.

[0027] In the scheme, the bottom plate 3 can adopt a cuboid structure, the bottom plane of which is attached to the measuring platform 1, and a straight groove is opened in the middle of the top plane; the three bottom plates 3 are evenly distributed on the measuring platform 1 in the circumferential direction, and since the bottom plate 3 is directly placed on the measuring platform 1, it can be adjusted to adapt to different diameters of the measured ring 2, achieving flexible positioning.

[0028] In the scheme, the support rod 6 can adopt a cylindrical structure, the bottom cylindrical surface of which is processed with a flat surface as the mounting bottom surface, which is fixed at the bottom of the straight groove of the bottom plate 3 by screws, and the top cylindrical surface is in line contact with the end face of the measured ring 2 and is used to directly support the measured ring 2, ensuring that the end face of the measured ring is parallel to the measuring platform 1, and at the same time, the position of the support rod 6 in the straight groove is adjusted to adapt to different ring sizes.

[0029] In the scheme, the fulcrum column A 5 and the fulcrum column B 7 are fixed in the straight groove of the corresponding bottom plate 3 through the connecting piece, and the fulcrum column A 5 and the fulcrum column B 7 are both T-shaped structures, the horizontal part of which is connected to the bottom of the straight groove of the bottom plate 3 through locking screws, and the vertical part is used to install the positioning fulcrum, and the heights of the fulcrum column A 5 and the fulcrum column B 7 can be different; the fulcrum column A 5 is used to install the positioning fulcrum A 8, and the fulcrum column B 7 is used to install the positioning fulcrum B 9, and the two positioning fulcrums are respectively located at the lowest end of the fulcrum column as the rigid contact point; it should be noted that the positioning fulcrum A 8 and the positioning fulcrum B 9 are the same structure, which are composed of a positioning end and a connecting end, so as to Figure 4 Take the positioning fulcrum B 9 shown in the middle as an example for description: the positioning end is installed on the fulcrum column through the connecting end; the positioning end is a columnar body structure, and the end part in contact with the outer diameter of the measured bearing is provided with a ball; the connecting end is composed of two half-ring clamps and locking screws, and the height of the positioning end on the corresponding fulcrum column can be adjusted by controlling the locking screw.

[0030] When measuring: by adjusting the installation position of the fulcrum column, the distribution of the measurement reference point can be set, since the fulcrum column A 5 is higher than the fulcrum column B 7, the table stand 10 is installed on the fulcrum column A 5, the positioning fulcrum A 8 and the positioning fulcrum B 9 are in contact with the outer diameter surface of the measured ring 2 respectively, and the two fulcrums form a stable three-point support structure with the support rod, which ensures that the measured ring has no displacement or inclination during the measurement process, and the height and angle of the measuring table 4 can be adjusted through the buckle structure, so that the measuring head is accurately aligned with the measured area of the ring end face; rotate the ring, and the measuring table 4 records the axial runout value of each position of the end face in real time, the end face parallelism difference is calculated through the difference between the maximum and minimum readings, and the data can be directly used for precision judgment.

[0031] The utility model discloses through modularization design can realize the position of quick adjustment support rod, various positioning fulcrum and table stand to flexible adaptation different specifications super large ring, support rod supports ring, makes the rotation ring more relaxed, and the efficiency is higher, and the combination reference plane and rigid fulcrum structure, the measurement efficiency and repeatability are improved significantly, and the dependence on three coordinate measuring machines is reduced simultaneously, and the cost advantage is outstanding.

[0032] The specific process of measuring the measured ring by the above device is as follows:

[0033] Three bottom plates 3 are evenly distributed on the measuring platform 1, and the position of the support rod 6 in the straight groove is adjusted so that the support surface is adapted to the end face diameter of the measured ring 2.

[0034] The positioning fulcrum A 8 and the positioning fulcrum B 9 are installed so as to be in contact with the two sides of the outer diameter of the measured ring 2, forming a stable three-point support.

[0035] The table stand 10 is fixed on one of the fulcrum columns, and the position of the measuring head of the measuring table 4 is adjusted so as to be perpendicular to the end face of the measured ring.

[0036] The measured ring 2 is rotated more than one revolution, and the indication change of the measuring table 4 is recorded, and the parallelism difference is calculated.

[0037] The part not described in the embodiment is prior art.

[0038] It should be noted that although the utility model has been described through the above embodiments, the utility model can also have other various embodiments. Without departing from the spirit and scope of the utility model, those skilled in the art can obviously make various corresponding changes and modifications to the utility model, but these changes and modifications should all belong to the scope protected by the claims and equivalents of the utility model.

Claims

1. A large bearing ring end face parallelism difference measuring support device, comprising a measuring platform as a reference plane and a support assembly on the measuring platform, characterized in that: The support assembly comprises at least three sets of bottom plates, the bottom planes of the bottom plates are attached to the measuring platform, the top planes of the bottom plates are provided with support rods for supporting the measured ring, the arc surfaces on the top of the support rods are in linear contact with the bottom surface of the measured ring, and two sets of the bottom plates are respectively provided with positioning fulcrums for positioning the outer diameter surface of the measured ring, the positioning fulcrums are installed on the fulcrum columns on the bottom plates.

2. A support device for measuring the end face parallelism of a super-size bearing ring according to claim 1, characterized in that: The top plane of the bottom plate is provided with a straight groove, and the support rod is clamped in the straight groove.

3. A support device for measuring the end face parallelism of a super-size bearing ring according to claim 2, characterized in that: The bottom of the support rod is provided with a mounting plane, and the support rod is fixed in the straight groove of the bottom plate through a connecting piece.

4. A support device for measuring the end face parallelism of a super-size bearing ring according to claim 2, characterized in that: The fulcrum column is fixed in the straight groove of the bottom plate through a connecting piece.

5. A support device for measuring the end face parallelism of a super-size bearing ring according to claim 4, characterized in that: The fulcrum column is of a T-shaped structure, the horizontal part of the T-shaped structure is fixed in the straight groove through a locking screw, and the vertical part of the T-shaped structure is used for installing the positioning fulcrum.

6. A support device for measuring the end face parallelism of a super large bearing ring according to claim 1 or 5, characterized in that: The positioning fulcrum is composed of a positioning end and a connecting end, and the positioning end is installed on the fulcrum column through the connecting end.

7. A support device for measuring the end face parallelism of a super-size bearing ring according to claim 6, characterized in that: The positioning end is of a columnar body structure, and the end of the columnar body structure in contact with the outer diameter surface of the measured bearing is provided with a ball.

8. A support device for measuring the end face parallelism of a super-size bearing ring according to claim 6, characterized in that: The connecting end is composed of two half-ring clamping rings and a locking screw, and the height of the positioning end on the fulcrum column can be adjusted by controlling the locking screw.

9. A support device for measuring the end face parallelism of a super-size bearing ring according to claim 1, characterized in that: A table frame for installing a measuring table is further arranged on the upper end of one of the fulcrum columns.

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