Device for detecting outer diameter of small flange of large-taper-angle tapered roller bearing

Abstract

The utility model relates to the technical field of bearing production, in particular to a large-cone-angle tapered roller bearing small flange outer diameter detection device which comprises a base, a workbench arranged on the base and a detection mechanism arranged on the base and the workbench. The detection mechanism comprises a supporting cylinder arranged on the base, an instrument sleeve vertically arranged on the supporting cylinder in a sliding mode, a dial indicator detachably arranged on the instrument sleeve, and a first supporting column and a second supporting column which are arranged on the workbench in a sliding mode. Supporting gaskets are detachably arranged on the first supporting column and the second supporting column; the included angle between the first chute and the second chute is 45 degrees, so that the distance between the supporting columns can be adjusted, and large-cone-angle bearing inner rings with different diameters can be measured; the large end face of the large cone angle bearing inner ring contacts with the workbench for measurement, so that the center of gravity of the ferrule is closer to the workbench, and contact is more stable. The working table is obliquely arranged, so that the sight of measuring personnel is better, the measuring instrument is more convenient to adjust, the applicability is higher, and the working efficiency and the product quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing production, in particular to a device for detecting the outer diameter of a small rib of a large-cone-angle tapered roller bearing. Background Art

[0002] Rolling bearings are a crucial component in the machinery industry, used in all rotating machine parts. During the machining of bearing rings, inspection of the small ribs on the inner ring is crucial. Failure to meet dimensional requirements can lead to loose bearings. Existing inspection methods typically use standard parts and micrometers for comparative testing. However, inspection of inner rings with large taper angles can lead to interference between the support and raceway, top-heavy positioning due to small end face positioning, obstructed view for observers, and loss of contact between the fulcrums. These issues can lead to inaccurate measurements and errors, impacting product quality and cost. Utility Model Content

[0003] The purpose of the utility model is to provide a device for detecting the outer diameter of the small rib of a large-cone-angle tapered roller bearing, which is used to solve the problems existing in the existing methods mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for detecting the outer diameter of the small rib of a large-cone-angle tapered roller bearing, comprising a base, a workbench arranged on the base, and a detection mechanism arranged on the base and the workbench, the detection mechanism comprising a support tube arranged on the base, an instrument sleeve vertically sliding on the support tube, a micrometer detachably arranged on the instrument sleeve, and a first pillar and a second pillar slidably arranged on the workbench; support gaskets are detachably provided on both the first pillar and the second pillar.

[0005] Furthermore, the workbench is provided with a first slide groove and a second slide groove, the first slide groove is horizontally arranged along the length direction of the workbench end face and is located in the middle of the workbench end face, the second slide groove is inclined on the workbench end face, the angle between the first slide groove and the second slide groove is 45°, and the bottom of the first pillar and the second pillar are respectively slidably arranged in the first slide groove and the second slide groove.

[0006] Furthermore, the end of the support tube is threadedly connected with a fastening screw.

[0007] Furthermore, the micrometer screw of the micrometer is arranged horizontally with the end surface of the workbench.

[0008] Furthermore, the workbench is tilted.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0010] 1. The utility model is used for measuring the inner ring of large-cone-angle bearings for adjustment and measurement; by adjusting the height of the dial indicator needle and the fulcrum, the height of the dial indicator needle is adjusted and fixed through the instrument sleeve and the support tube during measurement, and the fulcrum height and distance are adjusted by replacing the pillars and support gaskets. The two support points and the needle form a three-point support, and the three points form a circle that can be used to measure the diameter; the first slide groove and the second slide groove form a 45° angle, and the distance between the pillars can be adjusted to measure the inner rings of large-cone-angle bearings with different diameters; the large end face of the inner ring of the large-cone-angle bearing is in contact with the workbench for measurement, so that the center of gravity of the ring is closer to the workbench and the contact is more stable; the workbench is tilted to provide a better line of sight for the measurement personnel, more convenient adjustment of the measuring instrument, and greater applicability, thereby improving work efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the overall structure diagram of the utility model;

[0012] Figure 2 It is a side view of the utility model.

[0013] In the picture:

[0014] 1. Base; 2. Workbench; 3. Detection mechanism; 4. Support tube; 5. Instrument sleeve; 6. Micrometer; 7. First pillar; 8. Second pillar; 9. Support gasket; 10. First slide; 11. Second slide; 12. Inner ring of large-cone-angle bearing. DETAILED DESCRIPTION

[0015] See also Figures 1 to 2, a device for detecting the outer diameter of a small rib of a large-cone-angle tapered roller bearing, comprises a base 1, a workbench 2 arranged on the base 1, and a detection mechanism 3 arranged on the base 1 and the workbench 2. One end face of the base 1 is tilted, and the workbench 2 is fixed to one end face of the base 1 by four screws. The detection mechanism 3 is composed of a support tube 4, an instrument sleeve 5, a micrometer 6, a first pillar 7 and a second pillar 8; the above-mentioned support tube 4 is arranged on the base 1 and the support tube 4 is arranged parallel to the end face of the workbench 2. The instrument sleeve 5 is vertically slidably arranged on the support tube 4, and a fastening screw is threadedly connected to the end face of the support tube 4. After the position of the instrument sleeve 5 is adjusted appropriately, the position of the instrument sleeve 5 is fixed by tightening the fastening screw. The micrometer 6 is detachably arranged on the instrument sleeve 5 by a clamp and a screw. The probe of the micrometer 6 is arranged perpendicular to the end face of the workbench 2. 2, a first slide groove 10 and a second slide groove 11 are provided on the workbench 2, and the first slide groove 10 is horizontally arranged along the length direction of the end face of the workbench 2 and is located in the middle of the end face of the workbench 2, and the second slide groove 11 is inclined on the end face of the workbench 2, and the angle between the first slide groove 10 and the second slide groove 11 is 45 degrees. The bottom of the first pillar 7 and the second pillar 8 is larger than the opening of the first slide groove 10 and the second slide groove 11, respectively, and bolts are inserted into the bottom of the first pillar 7 and the second pillar 8, respectively, and the screw rods extend to the outside of the upper ends of the first pillar 7 and the second pillar 8, respectively, and then the bottoms of the first pillar 7 and the second pillar 8 are slid into the first slide groove 10 and the second slide groove 11, respectively, and then the support gasket 9 is sleeved on the screw rod. According to the measurement requirements, the positions of the first pillar 7 and the second pillar 8 are adjusted. After the adjustment is completed, the nuts are screwed into the screw rods to fix the positions of the first pillar 7 and the second pillar 8 and the support gasket 9 thereon.

[0016] Working principle of the utility model: When measuring, first place the large-cone-angle bearing inner ring standard part on the workbench 2, with the large end face of the standard part close to the workbench 2, and move the position of the first pillar 7 and the second pillar 8 according to the standard part. When the support gasket 9 on the first pillar 7 and the second pillar 8 abuts against the upper end of the small rib of the small end face of the standard part, fix the position of the first pillar 7 and the second pillar 8 at this time (the first pillar 7 and the second pillar 8 of different lengths can be replaced to adapt to large-cone-angle bearing inner rings 12 of different sizes), and then move the position of the instrument sleeve 5 so that the micrometer 6 probe is close to the small end face of the standard part. The upper end of the small rib is fitted vertically, and then the position of the micrometer 6 at this time is fixed, and the pointer is returned to zero. The standard part is rotated for at least one circle, the pointer data is observed and recorded at certain angles, and then the standard part is taken out and placed in the large-cone-angle bearing inner ring 12 to be tested, so that the two support washers 9 and the micrometer 6 probe are respectively fitted with the upper end of the small rib of the large-cone-angle bearing inner ring 12, and the large-cone-angle bearing inner ring 12 is rotated, and records are made at the same angles as the standard part, and the difference between the two is compared. Since the outer diameter of the small rib of the standard part is known, the value of the outer diameter of the small rib of the large-cone-angle bearing inner ring 12 is obtained.

Claims

1. A device for detecting the outer diameter of a small rib of a large-cone-angle tapered roller bearing, comprising a base (1), a workbench (2) arranged on the base (1), and a detection mechanism (3) arranged on the base (1) and the workbench (2), characterized in that: The detection mechanism (3) comprises a support tube (4) provided on a base (1), an instrument sleeve (5) vertically slidably provided on the support tube (4), a micrometer (6) detachably provided on the instrument sleeve (5), a first support column (7) and a second support column (8) slidably provided on a workbench (2); support gaskets (9) are detachably provided on both the first support column (7) and the second support column (8).

2. A device for detecting the outer diameter of a small rib of a large-cone-angle tapered roller bearing according to claim 1, characterized in that: The workbench (2) is provided with a first slide groove (10) and a second slide groove (11), wherein the first slide groove (10) is horizontally arranged along the length direction of the end face of the workbench (2) and is located in the middle of the end face of the workbench (2), and the second slide groove (11) is inclined on the end face of the workbench (2), and the angle between the first slide groove (10) and the second slide groove (11) is 45 degrees, and the bottoms of the first pillar (7) and the second pillar (8) are slidably arranged in the first slide groove (10) and the second slide groove (11) respectively.

3. A device for detecting the outer diameter of a small rib of a large-cone-angle tapered roller bearing according to claim 1, characterized in that: The end of the support cylinder (4) is threadedly connected with a fastening screw.

4. A device for detecting the outer diameter of a small rib of a large-cone-angle tapered roller bearing according to claim 1, characterized in that: The micrometer screw of the micrometer (6) is arranged horizontally with the end surface of the workbench (2).

5. The device for detecting the outer diameter of the small rib of a large-cone-angle tapered roller bearing according to claim 1, characterized in that: The workbench (2) is arranged to be tilted.

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