CN214372110U

CN214372110U - Angular contact ball bearing projection measuring device with outer diameter within 10mm

Info

Publication number: CN214372110U
Application number: CN202120495311.5U
Authority: CN
Inventors: 孙端端; 范凌鹤; 李玉杰; 易帅; 孔彧
Original assignee: LUOYANG JUCHUANG BEARING TECHNOLOGY CO LTD
Current assignee: LUOYANG JUCHUANG BEARING TECHNOLOGY CO LTD
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-10-08
Anticipated expiration: 2031-03-09

Abstract

The utility model provides an angular contact ball bearing protrusion measuring device within 10mm of external diameter, includes the platform, be equipped with base and measurement table frame on the platform, measurement table frame is located base one side, is equipped with the amesdial on the measurement table frame, is equipped with the projection on the base, and the cover is equipped with the bearing that awaits measuring on the projection, and the inner circle upper portion of the bearing that awaits measuring is equipped with interior measurement load, and the outer lane upper portion of the bearing that awaits measuring is equipped with outer measurement load, the utility model discloses measuring device simple structure easily guarantees the machining precision, simultaneously, need not the standard component, does not need the standard component to the zero operation in the measurement process, in the direct measurement bearing, the drop of outer lane, makes the measurement process simpler to reduce the zero error that causes because of the standard component to the zero process.

Description

Angular contact ball bearing projection measuring device with outer diameter within 10mm

The technical field is as follows:

the utility model belongs to the technical field of the bearing detects, what mainly related to is miniature angular contact ball bearing protrusion measuring device within external diameter 10 mm.

Background art:

the angular contact ball bearings are generally paired for use, so that the rigidity and the service life of the bearings can be greatly improved, the stability and the rotation precision of a system are improved, and the angular contact ball bearings are widely applied to high-precision shafting such as precision machine tool spindles, high-speed electric spindles and the like.

The protruding amount of the paired angular contact ball bearings directly influences the preload of the paired bearings, so that the rotating precision, rigidity, vibration, noise and the like of a shafting are influenced, a special protruding amount measuring instrument is arranged in the industry, the instrument adopts a pneumatic loading mode, measures by comparing with a standard component, is influenced by air source pressure fluctuation, has a certain error, and cannot measure the protruding amount of the miniature bearing within 10 mm.

The utility model has the following contents:

in order to overcome the not enough of prior art, the utility model discloses a miniature angular contact ball bearing protrusion measuring device within 10mm, the device do not need power supplies such as any electricity, gas and standard component, directly presses on the bearing through the load piece with different weight to the weight of load piece is the load to the bearing loading, measures the protrusion quantity value of bearing through inside and outside circle to the bearing respectively.

The utility model provides a technical scheme that its technical problem adopted:

the utility model provides an angular contact ball bearing protrusion measuring device within 10mm of external diameter, which comprises a platform, be equipped with base and measurement table frame on the platform, the measurement table frame is located base one side, be equipped with the amesdial on the measurement table frame, be equipped with the projection on the base, the cover is equipped with the bearing that awaits measuring on the projection, the inner circle upper portion of the bearing that awaits measuring is equipped with interior measurement load, the outer lane upper portion of the bearing that awaits measuring is equipped with outer measurement load, the projection, the bearing that awaits measuring, the amesdial and interior measurement load or outer measurement load coaxial line, wherein, interior measurement load and outer measurement load are equal height, and can not place on the bearing that awaits measuring simultaneously.

And the lower part of the external measurement load is fixedly provided with an external guide sleeve through a bolt, and the inner side wall of the external guide sleeve is in sliding fit with the outer ring of the bearing to be measured.

The lower end of the convex column is provided with a step, the step is used for supporting the bearing to be tested, and the height of the convex column is larger than that of the bearing to be tested.

The inner diameter of the internal measurement load is in sliding fit with the convex column, and the bottom surface of the internal measurement load is not in contact with the top of the convex column.

Due to the adoption of the technical scheme, the utility model discloses have following superiority:

1. the measuring device has simple structure and is easy to ensure the processing precision;

2. the measuring device adopts a manual load loading mode, and power sources such as electricity and gas do not need to be prepared;

3. the measuring method has the advantages that a standard part is not needed, zero setting operation of the standard part is not needed in the measuring process, and the fall of the inner ring and the outer ring of the bearing is directly measured, so that the measuring process is simpler, and zero setting errors caused by the zero setting process of the standard part are reduced;

4. the volume and the weight of the load block can be changed as required, and the protrusion value of the miniature angular contact ball bearing within 10mm can be measured;

description of the drawings:

FIG. 1 is a schematic view of the measurement when an internal measurement load is loaded;

FIG. 2 is a schematic view of the measurement when an external measurement load is applied;

in the figure: 1. a platform; 2. a base; 3. a bearing to be tested; 4. a measuring gauge stand; 5. a cross bar; 6. a dial indicator; 7. an outer guide sleeve; 8. externally measuring the load; 9. an internal measurement load; 10. a step; 11. a convex column; 12. a boss A; 13. and a boss B.

The specific implementation mode is as follows:

the present invention will be explained in more detail by the following examples, which are intended to protect all the changes and improvements within the scope of the present invention, and are not limited to the following examples;

the device for measuring the protrusion of the angular contact ball bearing with the outer diameter within 10mm comprises a platform 1, wherein a base 2 and a measuring gauge frame 4 are arranged on the platform 1, the measuring gauge frame 4 is positioned on one side of the base 2, a dial gauge 6 is arranged on the measuring gauge frame 4, the dial gauge 6 is arranged on a cross rod 5 of the measuring gauge frame 4, the cross rod 5 can be adjusted up and down on the measuring gauge frame 4, the dial gauge 6 can also be adjusted left and right on the cross rod 5, a convex column 11 is arranged on the base 2, a bearing 3 to be measured is sleeved on the convex column 11, an inner measuring load 9 is arranged on the upper portion of an inner ring of the bearing 3 to be measured, an outer measuring load 8 is arranged on the upper portion of an outer ring of the bearing 3 to be measured, the convex column 11, the bearing 3 to be measured, the dial gauge 6 and the inner measuring load 9 or the outer measuring load 8 share the same axis, only if all the components share the same axis, the position of the dial gauge on a boss A of the inner measuring load 9 or a boss B of the outer measuring load 8 can be ensured to be measured, ensuring the accuracy of the measurement. The inner measuring load 9 and the outer measuring load 8 are equal in height and cannot be placed on the bearing 3 to be measured at the same time, the measuring method of the device needs to record the height of the boss A and the height of the boss B by a micrometer respectively, and the inner measuring load 9 and the outer measuring load 8 are equal in height, so that the outer measuring load 8 cannot be placed on the inner measuring load 9 after the inner measuring load 9 is placed on the bearing, and the inner measuring load 9 and the outer measuring load 8 cannot be placed on the bearing 3 to be measured at the same time.

The lower part of the external measurement load 8 is fixed with an external guide sleeve 7 through a bolt, the inner side wall of the external guide sleeve 7 is in sliding fit with the outer ring of the bearing 3 to be measured, the external guide sleeve 7 can limit the external measurement load 8, and the external measurement load 8 is prevented from deviating in the measurement process to influence the measurement precision.

The lower end of the convex column 11 is provided with a step 10, the step 10 is used for supporting the bearing 3 to be tested, and the height of the convex column 11 is larger than that of the bearing 3 to be tested.

The inner diameter of the inner measuring load 9 is in sliding fit with the convex column 11, and the bottom surface of the inner measuring load 9 is not in contact with the top of the convex column 11.

Step 10 supports bearing 3 that awaits measuring, control the distance between bearing 3 and the 11 top surfaces of projection that awaits measuring, ensure that the top surface of projection 11 can stretch out bearing 3's that awaits measuring centre bore, like this, the inner wall of interior measurement load 9 just can with the projection sliding fit who should extend out, just can carry out the position to inject to interior measurement load 9, but simultaneously, the part that projection 11 extends bearing 3 centre bore that awaits measuring can not the overlength, must ensure that the top of projection 11 does not have the contact with the bottom surface of interior measurement load 9, if contacted, interior measurement load 9 just can be held up so, and can not place on bearing 3's that awaits measuring inner ring, and then the data that micrometer 6 measured just has the error.

The utility model discloses a measuring device adopts is than the measurement method, puts base 2 on measuring platform 1 during the measurement, and the one end that 3 outer lanes in the bearing that will await measuring take the slope is down, and the cover is established on 2 projections of base 11, and projection 11 exceeds the bearing inner race but not with inside and outside measurement load bottom surface contact.

As shown in figure 1, an internal measurement load 9 is positioned through a convex column 11 and pressed on an inner ring of a bearing 3 to be measured, a dial indicator 6 is arranged on a cross rod 5 of a measurement indicator frame 4, then the dial indicator 6 is pointed on a central boss A12 of the internal measurement load 9, and the indication value A of the dial indicator 6 is recorded. Then the internal measurement load 9 is taken down;

as shown in fig. 2, the external measurement load 8 is fitted to the bearing 3 to be measured through the outer guide sleeve 7, and the side end of the dial indicator 6 is pointed to a boss B13 at the center of the external measurement load 8, and the dial indicator value B is recorded. The difference value of the two numerical values is the bearing protrusion amount.

Namely: bearing protrusion = A-B

Positive values indicate that the bearing inner race protrudes out of the outer race, and negative values indicate that the bearing outer race protrudes out of the inner race.

Taking the measurement of the bearing S723J as an example, the external dimension thereof is phi 3 (D) x phi 10 (D) x 4 (B),

1. placing the outer ring of the bearing on a base with the slope surface facing downwards, pressing an internal measurement load on the inner ring, and indicating a dial indicator on a central boss of the load, wherein the dial indicator value is-8 mu m;

2. taking down the inner measuring load block, pressing the outer measuring load on the bearing outer ring, and indicating a dial indicator on a central boss of the load, wherein the dial indicator value is-27 mu m;

3. the protrusion amount of the bearing inner ring to the outer ring is as follows: (-8 μm) - (-27 μm) =19 μm.

The details of the above are not described in detail since they are prior art.

Claims

1. The utility model provides an angular contact ball bearing protrusion measuring device within 10mm of external diameter which characterized in that: the measuring instrument frame is positioned on one side of the base, the dial indicator is arranged on the measuring instrument frame, a convex column is arranged on the base, a bearing to be measured is sleeved on the convex column, an inner measuring load is arranged on the upper portion of an inner ring of the bearing to be measured, an outer measuring load is arranged on the upper portion of an outer ring of the bearing to be measured, the convex column, the bearing to be measured, the dial indicator and the inner measuring load or the outer measuring load share the same axis, wherein the inner measuring load and the outer measuring load are equal in height, and the inner measuring load and the outer measuring load cannot be placed on the bearing to be measured at the same time.

2. The angular contact ball bearing protrusion measuring device according to claim 1, wherein the outer diameter is within 10mm, and the device is characterized in that: and the lower part of the external measurement load is fixedly provided with an external guide sleeve through a bolt, and the inner side wall of the external guide sleeve is in sliding fit with the outer ring of the bearing to be measured.

3. The angular contact ball bearing protrusion measuring device according to claim 1, wherein the outer diameter is within 10mm, and the device is characterized in that: the lower end of the convex column is provided with a step, the step is used for supporting the bearing to be tested, and the height of the convex column is larger than that of the bearing to be tested.

4. The angular contact ball bearing protrusion measuring device within 10mm of the outer diameter according to claim 3, characterized in that: the inner diameter of the internal measurement load is in sliding fit with the convex column, and the bottom surface of the internal measurement load is not in contact with the top of the convex column.