CN219454880U - Radial runout checking fixture for channel of thrust angular contact ball bearing - Google Patents

Abstract

The utility model relates to the field of bearings, and particularly discloses a channel radial runout gauge for a thrust angular contact ball bearing. The channel radial runout gauge comprises a positioning module and a measuring module, wherein the positioning module comprises a detection platform, and a positioning unit is arranged on the detection platform; the measuring module comprises a measuring unit and a clamping assembly, the clamping assembly comprises a clamp seat and a middle connecting rod, one end of the middle connecting rod is movably connected with the clamp seat in a rotating way, the other end of the middle connecting rod is movably connected with the measuring unit in a rotating way, and the rotation centers of the two ends of the middle connecting rod are parallel to each other and are parallel to the detection platform; the clamp seat is positioned at one side of the detection platform; during measurement, the measuring unit is located above the detection platform, and the detection end of the measuring unit is arranged towards the detection platform. The channel radial runout gauge adopts a direct measurement mode, so that the radial runout amount of the channel is accurately and reliably detected, and the product quality is ensured.

Description

Radial runout checking fixture for channel of thrust angular contact ball bearing

Technical Field

The utility model relates to the field of bearings, in particular to a channel radial runout gauge for a thrust angular contact ball bearing.

Background

The angular contact thrust ball bearing is a bearing type which is mainly used for bearing axial load and can bear a small amount of radial load, and compared with the thrust ball bearing with the same size, the angular contact thrust ball bearing has higher allowable limit rotation speed and can perform unidirectional axial positioning.

Because the limit rotation speed of the angular contact thrust ball bearing is higher, the requirement on the machining precision is also necessarily higher, wherein the radial runout of the channel is one of important parameters affecting the running performance of the bearing, the running of the bearing is unstable due to the overlarge radial runout of the channel, the abrasion loss of the channel and the rolling bodies is increased, and the service life of the bearing is reduced. At present, most of measuring modes for a bearing channel are indirect measuring modes, direct measurement is difficult to achieve, the detecting and measuring modes are complex to operate, and measuring errors can be increased to a certain extent.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a channel radial runout gauge for a thrust angular contact ball bearing, which adopts a direct measurement mode to accurately and reliably detect the radial runout of a channel and ensure the product quality.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the channel radial runout gauge for the thrust angular contact ball bearing comprises a positioning module and a measuring module, wherein the positioning module comprises a detection platform, and a positioning unit is arranged on the detection platform;

the measuring module comprises a measuring unit and a clamping assembly, the clamping assembly comprises a clamp seat and a middle connecting rod, one end of the middle connecting rod is movably connected with the clamp seat in a rotating way, the other end of the middle connecting rod is movably connected with the measuring unit in a rotating way, and the rotation centers of the two ends of the middle connecting rod are parallel to each other and are parallel to the detection platform;

the clamp seat is positioned at one side of the detection platform; during measurement, the measuring unit is located above the detection platform, and the detection end of the measuring unit is arranged towards the detection platform.

During detection, the track of the angular contact ball bearing to be detected is placed on the detection platform, the track is positioned in the horizontal direction through the positioning unit, and a channel on the track is arranged upwards. Then the position of the measuring unit is adjusted by adjusting the middle connecting rod, the detection end of the measuring unit enters the channel and contacts with the inner wall of the channel, and the measuring unit is fixed after the adjustment is finished. And finally, rotating the track, wherein the fluctuation range of the indication of the measuring unit is the radial runout of the channel of the thrust angular contact ball bearing to be measured.

By adopting the gauge, the radial runout of the channel of the thrust angular contact ball bearing can be directly detected, and the gauge has the advantages of reliable detection result and convenience in operation.

Preferably, the positioning unit comprises two positioning columns arranged on the detection platform.

Preferably, the position of at least one of the positioning columns relative to the detection platform can be adjusted in the horizontal direction, and the detection requirements of bearings with different specifications and sizes can be met by adjusting the position of the positioning column.

Preferably, the detection platform is provided with a chute, and the positioning column is in sliding connection with the detection platform through the chute.

Preferably, the measuring unit is a lever dial indicator.

Preferably, the fixture seat comprises a fixed seat and an adjusting seat, and the middle connecting rod is connected with the adjusting seat;

the adjusting seat can move relative to the fixed seat in a direction vertical to the detection platform;

and a locking unit is arranged between the fixed seat and the adjusting seat.

After the detection operation of a single track is finished, an operator unlocks the locking unit, drives the adjusting seat, the middle connecting rod and the measuring unit to synchronously move upwards, takes out the detected track, puts the detected track into a new track to be detected, and drives the measuring unit to reset and lock again. The continuity of the detection operation is good.

Preferably, the fixing seat comprises a guide post fixedly connected with the detection platform; the adjusting seat comprises an outer sleeve sleeved outside the guide post; the locking unit comprises a bolt.

Preferably, a linear bearing is arranged between the outer sleeve and the guide post.

Preferably, a return spring is further arranged between the outer sleeve and the guide post.

Preferably, the fixture seat further comprises an orientation unit, wherein the orientation unit comprises an orientation block, and the orientation block is positioned on one side of the outer sleeve and is fixedly connected with the detection platform;

the first orientation surface is arranged on the orientation block, the second orientation surface is arranged on the side surface of the outer sleeve, and the first orientation surface is matched with the second orientation surface; the second orientation surface is a plane or a rotation plane with a rotation center staggered from the center line of the sleeve.

The arrangement of the orientation unit can ensure that the sleeve is kept motionless in the circumferential direction in the axial movement process relative to the guide post, thereby ensuring the consistent orientation of the measurement unit and reducing detection errors.

Drawings

FIG. 1 is a schematic diagram of a radial runout gauge for a thrust angular ball bearing according to the present embodiment; at this time, the detection end of the measurement unit is positioned in the channel;

FIG. 2 is a side view of a radial runout gauge for a thrust angular ball bearing according to the present embodiment;

FIG. 3 is a schematic structural diagram of a radial runout gauge for a thrust angular ball bearing according to the present embodiment; at this time, the detection end of the measurement unit is separated from the channel;

FIG. 4 is a schematic diagram of a channel runout gauge for a thrust angular ball bearing according to another embodiment;

FIG. 5 is a cross-sectional view of a channel runout gauge for a thrust angular ball bearing according to the present embodiment;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

fig. 7 is a partial enlarged view at B in fig. 5.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Examples

As shown in fig. 1-4, a radial runout gauge for a channel of a thrust angular contact ball bearing comprises a positioning module and a measuring module, wherein the positioning module comprises a detection platform 11, and a positioning unit is arranged on the detection platform 11. Specifically, the positioning unit includes two positioning posts 12 disposed on the detection platform 11.

Further, as shown in fig. 1, the position of at least one of the positioning columns 12 relative to the detection platform 11 can be adjusted in the horizontal direction, and the detection requirements of bearings with different specifications and sizes can be met by adjusting the position of the positioning column 12. Specifically, the detection platform 11 is provided with a chute 13, and the positioning column 12 is slidably connected with the detection platform 11 through the chute 13. The sliding grooves 13 are in one-to-one correspondence with the positioning seats, the two sliding grooves 13 are intersected, and the distance between the two positioning columns 12 and the relative positions of the two positioning columns 12 on the detection platform 11 can be adjusted by adjusting the positions of the positioning columns 12 in the sliding grooves 13. A fastening piece is arranged between the positioning seat and the chute 13, and the fastening piece can be a bolt.

As shown in fig. 1-3, the measuring module comprises a measuring unit and a clamping assembly, the clamping assembly comprises a clamp seat 51 and an intermediate connecting rod 4, one end of the intermediate connecting rod 4 is movably connected with the clamp seat 51 in a rotating way, the other end of the intermediate connecting rod 4 is movably connected with the measuring unit in a rotating way, and the rotation centers of the two ends of the intermediate connecting rod 4 are parallel to each other and are parallel to the detection platform 11. Specifically, the measuring unit 3 is a lever dial indicator. The two ends of the middle connecting rod 4 are respectively provided with a fastening piece, and the fastening pieces can be bolts.

As shown in fig. 1-3, the fixture seat 51 includes a fixed seat and an adjusting seat, and the intermediate connecting rod 4 is connected with the adjusting seat. The adjustment seat is movable relative to the fixed seat in a direction perpendicular to the detection platform 11. A locking unit 516 is also provided between the fixed base and the adjusting base.

When the detection operation of the single track is completed, the operator unlocks the locking unit 516, drives the adjusting seat, the intermediate connecting rod 4 and the measuring unit 3 to synchronously move upwards, takes out the detected track, puts in a new track to be detected, and drives the measuring unit 3 to reset and lock again. The continuity of the detection operation is good.

Specifically, as shown in fig. 5 and 6, the fixing base includes a guide post 515 fixedly connected to the detection platform 11, the adjusting base includes an outer sleeve 514 sleeved outside the guide post 515, and the locking unit 516 includes a bolt. A linear bearing 513 is arranged between the outer sleeve 514 and the guide post 515. A return spring 512 is also provided between the outer sleeve 514 and the guide post 515.

Specifically, as shown in fig. 1, the device further comprises a base 1, the detection platform 11 and the clamp seat 51 are both located on the base 1, and the clamp seat 51 is located on one side of the detection platform 11. During measurement, the measuring unit 3 is located above the detecting platform 11, and the detecting end 11 of the measuring unit 3 is disposed towards the detecting platform 11.

During detection, the track of the angular contact ball bearing 2 to be detected is placed on the detection platform 11, the track is horizontally positioned through the positioning unit, a channel on the track is upwards arranged, and the inner side or the outer side of the specific track is in contact with the positioning column 12. Then, the position of the measuring unit 3 is adjusted by adjusting the intermediate connecting rod 4, the detecting end 11 of the measuring unit 3 enters the channel 21 and contacts with the inner wall of the channel 21, that is, the state shown in fig. 7, and the measuring unit 3 is fixed after the adjustment is completed. And finally, rotating the track, wherein the fluctuation range of the indication of the measuring unit 3 is the radial runout of the channel of the thrust angular contact ball bearing to be measured. In the detection process, the detection end 11 of the measurement unit 3 is perpendicular to the detection platform 11, the contact point of the detection end 11 and the channel is deviated from the bottom of the channel, and on the premise of stable contact, the larger the distance of the contact point deviated from the bottom of the channel is, the smaller the detection error is.

By adopting the gauge, the radial runout of the channel of the thrust angular contact ball bearing can be directly detected, and the gauge has the advantages of reliable detection result and convenience in operation.

Further, as shown in fig. 3-6, the fixture seat 51 further includes an orientation unit 52, where the orientation unit 52 includes an orientation block, and the orientation block is located on one side of the outer sleeve 514 and is fixedly connected to the detection platform 11. The orientation block is provided with a first orientation surface, the side surface of the outer sleeve 514 is provided with a second orientation surface 511, and the first orientation surface is matched with the second orientation surface 511. The second orientation surface 511 is a plane or a rotation plane with a rotation center staggered from the center line of the sleeve. The orientation block is provided with an elongated slot 521, and the orientation unit 52 further includes an adjusting bolt, which passes through the elongated slot 521 and is connected with the base 1. During detection, the adjusting bolt is locked, and when the position of the orientation block needs to be adjusted, the orientation block can be moved to a proper position by loosening the adjusting bolt.

The orientation unit 52 can ensure that the sleeve is kept motionless in the circumferential direction in the axial movement process relative to the guide post 515, thereby ensuring that the orientation of the measurement unit 3 is consistent and reducing detection errors.

In summary, the foregoing description is only of the preferred embodiments of the utility model, and is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims (10)

1. A radial runout of channel examines utensil for thrust angular contact ball bearing, its characterized in that: the device comprises a positioning module and a measuring module, wherein the positioning module comprises a detection platform, and a positioning unit is arranged on the detection platform;

the measuring module comprises a measuring unit and a clamping assembly, the clamping assembly comprises a clamp seat and a middle connecting rod, one end of the middle connecting rod is movably connected with the clamp seat in a rotating way, the other end of the middle connecting rod is movably connected with the measuring unit in a rotating way, and the rotation centers of the two ends of the middle connecting rod are parallel to each other and are parallel to the detection platform;

the clamp seat is positioned at one side of the detection platform; during measurement, the measuring unit is located above the detection platform, and the detection end of the measuring unit is arranged towards the detection platform.

2. The channel radial runout gauge of claim 1, wherein: the positioning unit comprises two positioning columns arranged on the detection platform.

3. The channel radial runout gauge of claim 2, wherein: the position of at least one of the positioning columns relative to the detection platform can be adjusted in the horizontal direction.

4. The channel radial runout gauge of claim 2, wherein: the detection platform is provided with a chute, and the positioning column is in sliding connection with the detection platform through the chute.

5. The channel radial runout gauge of claim 4, wherein: the measuring unit is a lever dial indicator.

6. The channel radial runout gauge according to any one of claims 1-5, wherein: the clamp seat comprises a fixed seat and an adjusting seat, and the middle connecting rod is connected with the adjusting seat;

the adjusting seat can move relative to the fixed seat in a direction vertical to the detection platform;

and a locking unit is arranged between the fixed seat and the adjusting seat.

7. The channel radial runout gauge of claim 6, wherein: the fixed seat comprises a guide post fixedly connected with the detection platform; the adjusting seat comprises an outer sleeve sleeved outside the guide post; the locking unit comprises a bolt.

8. The channel radial runout gauge of claim 7, wherein: and a linear bearing is arranged between the outer sleeve and the guide post.

9. The channel radial runout gauge of claim 7, wherein: and a reset spring is arranged between the outer sleeve and the guide post.

10. The channel radial runout gauge of claim 7, wherein: the fixture seat also comprises an orientation unit, wherein the orientation unit comprises an orientation block, and the orientation block is positioned on one side of the outer sleeve and is fixedly connected with the detection platform;

the first orientation surface is arranged on the orientation block, the second orientation surface is arranged on the side surface of the outer sleeve, and the first orientation surface is matched with the second orientation surface; the second orientation surface is a plane or a rotation plane with a rotation center staggered from the center line of the sleeve.