CN221350036U - Automatic measuring device for outer diameter and clearance of grade-reducing bearing of railway carriage - Google Patents
Automatic measuring device for outer diameter and clearance of grade-reducing bearing of railway carriage Download PDFInfo
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- CN221350036U CN221350036U CN202323447384.5U CN202323447384U CN221350036U CN 221350036 U CN221350036 U CN 221350036U CN 202323447384 U CN202323447384 U CN 202323447384U CN 221350036 U CN221350036 U CN 221350036U
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- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000005056 compaction Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 7
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Abstract
The utility model discloses an automatic measuring device for the outer diameter and the clearance of a railway carriage descending bearing, which comprises a supporting component, an upper die, a positioning clamping component, a rotating component and a measuring component, wherein the upper die is arranged on the supporting component; the positioning clamping assembly is arranged oppositely, so that quick clamping and centering of bearings with different inner diameters can be realized, the measuring accuracy is ensured, the detecting accuracy is improved, the positioning clamping assembly is matched with an upper die, one-time positioning measurement of the outer diameter and the clearance can be realized, the split and the sleeve combination are not needed, the detecting efficiency is improved, the rotating assembly can meet the quick conversion of a plurality of measuring positions, and the degree of automation is high.
Description
Technical Field
The utility model relates to the technical field of bearing detection devices, in particular to an automatic measuring device for the outer diameter and the clearance of a grade-reducing bearing of a railway carriage.
Background
Some bearings for railway carriages adopt a grade-reducing bearing, for example, a standard bearing with an inner diameter of 130mm, the diameter of an inner ring of the grade-reducing bearing is 129 mm and 129.5 mm, the grade-reducing bearing is in a tolerance range, the inner ring, rollers and other dimensional tolerances and technical requirements of the bearings are the same as those of the bearings with the standard inner diameter, in the existing detection device, the detection of the outer diameter of an outer ring and the clearance of a complete set of bearings is usually carried out on two detection devices respectively, when the detection of the outer diameter is carried out, the complete set of bearings is required to be detached, the outer ring is detected separately, then the clearance is detected by assembling another device, and the detection efficiency is influenced.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides an automatic measuring device for the outer diameter and the clearance of a railway carriage descending bearing, which can finish the measurement of the outer diameter and the clearance at one time, has high detection measurement and wide application range.
The technical scheme adopted by the utility model is as follows:
An automatic measuring device for the outer diameter and the clearance of a grade-reducing bearing of a railway carriage comprises a supporting component, an upper die, a positioning clamping component, a rotating component and a measuring component;
The support assembly comprises a bottom plate, a base plate and a bearing support table; the bearing support table is arranged on the bearing support table surface and is parallel and level with the base plate, the center of the bearing support table is provided with a positioning boss matched with the inner diameter of the bearing inner ring, and a step structure is formed between the outer circumference of the positioning boss and the bearing support table surface;
The upper die comprises a supporting arm, a mounting plate, a compression cylinder, a guide shaft, a linear bearing, a pressing plate and an upper pressing block; the support arm is of an inverted L-shaped structure, the support arm is arranged at the rear side of the middle part of the bottom plate, and the horizontal section at the upper end corresponds to the bearing support table at the center of the base plate in position; the mounting plate is arranged at the lower side of the front end of the horizontal section of the support arm, and the compression cylinder is arranged in the middle of the mounting plate; the linear bearings are respectively arranged on the mounting plates at two sides of the compression cylinder; the guide shafts are vertically arranged in the linear bearings, and the pressing plates are horizontally arranged at the lower ends of the two guide shafts; the output end of the compaction cylinder passes through the mounting plate and is connected with the pressing plate through a floating joint; the upper pressing block is arranged at the lower side of the pressing plate and is cylindrical and matched with the bearing inner ring; the pressing cylinder drives the pressing plate under the guiding action of the guide shaft and the linear bearing so as to drive the upper pressing block to vertically move up and down;
The positioning clamping assembly is oppositely arranged on the left side and the right side of the base plate and comprises a mounting seat, a sliding rail, a clamping wheel and a clamping cylinder; the mounting seat is of a U-shaped plate structure which is horizontally arranged, a sliding block matched with the sliding rail is arranged on the lower side of the mounting seat, and the sliding rail is arranged on the backing plate; the clamping wheels are respectively arranged at the two ends of the U shape of the mounting seat through the rotating shafts; the clamping cylinder is arranged on a backing plate at one side of the mounting seat, and the extending end of the clamping cylinder is connected with the mounting seat through a floating joint; the center connecting line between the two groups of clamping wheels of the two positioning clamping assemblies is arranged through the circle center of the bearing supporting table;
the rotating assembly is connected with the right positioning clamping assembly and comprises a connecting plate, a driving motor, a synchronous wheel and a synchronous belt; the connecting plate is horizontally arranged at the outer end of the mounting seat, the driving motor is arranged at the outer end of the connecting plate, the output shaft of the driving motor is connected with the wheel shaft of the synchronous wheels through the coupler, the other two synchronous wheels are respectively arranged at the upper ends of the rotating shafts of the two clamping wheels of the mounting seat, and the synchronous belts are respectively wound on the three synchronous wheels;
The measuring assembly comprises two pneumatic displacement sensors which are oppositely arranged, the two pneumatic displacement sensors are respectively arranged on the base plate between the U-shaped openings of the two positioning clamping assembly mounting seats, and the pneumatic displacement sensors are positioned in the middle between the two clamping wheels.
Specifically, drag chain subassembly one end of last mould pass through leg joint on the mounting panel, the other end passes through leg joint on the clamp plate, along with the clamp plate reciprocates.
Specifically, the rotating component is also provided with a protective cover.
Specifically, the positioning boss of the bearing support table is circular or two sections of arc section structures symmetrically arranged on the same circumference.
By adopting the technical scheme, the utility model has the following advantages:
The positioning clamping assembly is arranged oppositely, so that quick clamping and centering of bearings with different inner diameters can be realized, the measuring accuracy is ensured, the detecting accuracy is improved, the positioning clamping assembly is matched with an upper die, one-time positioning measurement of the outer diameter and the clearance can be realized, the split and the sleeve combination are not needed, the detecting efficiency is improved, the rotating assembly can meet the quick conversion of a plurality of measuring positions, and the degree of automation is high.
Drawings
Fig. 1 is an overall schematic of the present utility model.
FIG. 2 is a schematic diagram of the connection of the positioning and clamping assembly and the rotating assembly according to the present utility model.
Fig. 3 is a schematic of the workflow of the present utility model.
Fig. 4 is a schematic top view of fig. 3.
In the figure: the device comprises a base plate 1, a base plate 2, a base plate 3, a bearing supporting table 31, a positioning boss 4, a supporting arm 5, a mounting plate 6, a pressing cylinder 7, a guide shaft 8, a linear bearing 9, a pressing plate 10, an upper pressing block 11, a mounting seat 12, a sliding rail 13, a clamping wheel 14, a clamping cylinder 15, a connecting plate 16, a driving motor 17, a synchronous wheel 18, a synchronous belt 19, a pneumatic displacement sensor 20, a drag chain component and a protective cover 21.
Detailed Description
The present utility model is further explained below with reference to the drawings and examples, which are not to be construed as limiting the scope of the utility model, and the purpose of the present utility model is to protect all technical improvements within the scope of the utility model.
An automatic measuring device for the outer diameter and the clearance of a railway carriage descending bearing is shown in combination with figures 1-2, and comprises a supporting component, an upper die, a positioning clamping component, a rotating component and a measuring component.
The support assembly comprises a bottom plate 1, a backing plate 2 and a bearing support table 3; the backing plate 2 passes through the stand setting on bottom plate 1 center, and backing plate 2 center is provided with circular mounting groove, and bearing support platform 3 sets up in circular mounting groove, and bearing support platform 3 mesa and backing plate 3 parallel and level set up, and bearing support platform 3 center is provided with and bearing inner race internal diameter matched with location boss 31, forms step structure between location boss 31 outer circumference and the bearing support platform 3 mesa.
The upper die comprises a supporting arm 4, a mounting plate 5, a compression cylinder 6, a guide shaft 7, a linear bearing 8, a pressing plate 9 and an upper pressing block 10; the support arm 4 is of an inverted L-shaped structure, the support arm 4 is arranged at the rear side of the middle part of the bottom plate 1, and the horizontal section at the upper end corresponds to the position of the bearing support table 3 in the center of the base plate 2; the mounting plate 5 is arranged at the lower side of the front end of the horizontal section of the supporting arm 4, and the compression cylinder 6 is arranged in the middle of the mounting plate 5; the linear bearings 8 are respectively arranged on the mounting plates 5 at two sides of the compression cylinder 6; the guide shafts 7 are vertically arranged in the linear bearings 8, and the pressing plates 9 are horizontally arranged at the lower ends of the two guide shafts 7; the output end of the compaction cylinder 6 passes through the mounting plate 5 and is connected with the pressing plate 9 through a floating joint; the upper pressing block 10 is arranged at the lower side of the pressing plate 9, and the upper pressing block 10 is cylindrical and matched with the bearing inner ring; the pressing cylinder 6 drives the pressing plate 9 under the guiding action of the guide shaft 7 and the linear bearing 8 so as to drive the upper pressing block 10 to vertically move up and down.
The positioning clamping components are oppositely arranged on the left side and the right side of the backing plate 2, and comprise a mounting seat 11, a sliding rail 12, a clamping wheel 13 and a clamping cylinder 14; the mounting seat 11 is of a horizontally arranged U-shaped plate structure, a sliding block matched with the sliding rail 12 is arranged on the lower side of the mounting seat 11, and the sliding rail 12 is arranged on the base plate 2; the clamping wheels 13 are respectively arranged at the two ends of the U shape of the mounting seat 11 through rotating shafts; the clamping cylinder 14 is arranged on the backing plate 2 at one side of the mounting seat 11, and the extending end of the clamping cylinder 14 is connected with the mounting seat 11 through a floating joint; the center connecting line between the two groups of clamping wheels 13 of the two positioning clamping assemblies is arranged through the circle center of the bearing support table 3.
The rotating assembly is connected with the right positioning clamping assembly and comprises a connecting plate 15, a driving motor 16, a synchronous wheel 17 and a synchronous belt 18; the connecting plate 15 is horizontally arranged on the outer end of the mounting seat 11, the driving motor 16 is arranged on the outer end of the connecting plate 15, an output shaft of the driving motor 16 is connected with a wheel shaft of the synchronous wheels 17 through a coupler, the other two synchronous wheels 17 are respectively arranged on the upper ends of rotating shafts of the two clamping wheels 13 of the mounting seat 11, and the synchronous belts 18 are respectively wound on the three synchronous wheels 17.
The measuring assembly comprises two oppositely arranged pneumatic displacement sensors 19, the two pneumatic displacement sensors 19 are respectively arranged on the backing plate 2 between the U-shaped openings of the two positioning clamping assembly mounting seats 11, and the pneumatic displacement sensors 19 are positioned in the middle between the two clamping wheels 13.
Preferably, one end of the drag chain component 20 of the upper die is connected to the mounting plate 5 through a bracket, and the other end is connected to the pressing plate 9 through a bracket, so as to move up and down along with the pressing plate 9.
Preferably, the rotating assembly is further provided with a protective cover 21.
Preferably, the positioning boss 31 of the bearing support table 3 is circular or two circular arc sections symmetrically arranged on the same circumference.
Taking 130mm of inner diameter of a standard bearing inner ring of a bearing to be detected as an example, reducing the inner diameters of the bearings to 129 and 129.5, in order to adapt to the measurement of the three bearings, the positioning boss 31 of the bearing support table 3 is designed according to the minimum diameter of 129; as shown in fig. 3 and 4, the specific workflow is:
a. placing a bearing to be detected on a bearing support table, wherein the lower end surface of a bearing inner ring is positioned on a step structure of the bearing support table, and a bearing outer ring is positioned on a backing plate;
b. Firstly, a clamping cylinder 14 of a right positioning and clamping assembly is started to drive a right mounting seat 11 to move leftwards along a sliding rail 12, two clamping wheels 13 at the front end of the mounting seat 11 are contacted with the outer wall of a bearing outer ring to push the bearing leftwards, so that the right inner wall of the bearing inner ring is tightly contacted with the right side of a positioning boss 31, then a compression cylinder 6 of an upper die acts, and a pressing plate 9 drives an upper pressing block 10 to press down the bearing inner ring;
c. And then the clamping cylinder 14 of the left positioning clamping assembly is started, the two left clamping wheels 13 are in contact with the left outer wall of the bearing outer ring, and as the center connecting line between the two groups of clamping wheels 13 of the two positioning clamping assemblies is arranged through the center of the bearing supporting table 3, the two groups of clamping wheels 13 center the bearing, so that the measuring anvil of the two pneumatic displacement sensors 19 is positioned on the maximum diameter of the bearing outer ring after extending out, and the reading of the two pneumatic displacement sensors 19 is compared with the standard value, so that the measurement accuracy is ensured.
When the clearance is measured, the numerical value of the left pneumatic displacement sensor 19 is read firstly, at the moment, the right clamping wheels 13 still press the outer ring, then the right mounting seat 11 is retracted, the upper pressing block 10 still presses the inner ring, the inner ring is motionless, the left clamping wheels 13 move rightwards to push the outer ring of the bearing rightwards, the left inner surface of the outer ring is tightly contacted with the roller and the outer surface of the inner ring, the numerical value of the left pneumatic displacement sensor 19 is read, and the difference between the two values is the radial clearance of the bearing.
When the outer diameter and the clearance are measured, after the data are measured once, the motor 16 is driven to work through the rotating assembly arranged on the right side, the synchronous wheel 17 and the synchronous belt 18 are driven to rotate, the two synchronous wheels 17 at the front end drive the two clamping wheels 13 to rotate, friction between the two clamping wheels 13 and the outer ring drives the outer ring to rotate by a certain angle, the measuring steps are repeated, a plurality of outer diameters and clearance values are measured, and an average value is taken as a final measuring result.
The utility model is not described in detail in the prior art.
The embodiments selected herein for the purposes of disclosing the utility model are presently considered to be suitable, but it is to be understood that the utility model is intended to include all such variations and modifications as fall within the spirit and scope of the utility model.
Claims (4)
1. The automatic measuring device for the outer diameter and the clearance of the grade-reducing bearing of the railway carriage is characterized by comprising a supporting component, an upper die, a positioning clamping component, a rotating component and a measuring component;
The support assembly comprises a bottom plate, a base plate and a bearing support table; the bearing support table is arranged on the bearing support table surface and is parallel and level with the base plate, the center of the bearing support table is provided with a positioning boss matched with the inner diameter of the bearing inner ring, and a step structure is formed between the outer circumference of the positioning boss and the bearing support table surface;
The upper die comprises a supporting arm, a mounting plate, a compression cylinder, a guide shaft, a linear bearing, a pressing plate and an upper pressing block; the support arm is of an inverted L-shaped structure, the support arm is arranged at the rear side of the middle part of the bottom plate, and the horizontal section at the upper end corresponds to the bearing support table at the center of the base plate in position; the mounting plate is arranged at the lower side of the front end of the horizontal section of the support arm, and the compression cylinder is arranged in the middle of the mounting plate; the linear bearings are respectively arranged on the mounting plates at two sides of the compression cylinder; the guide shafts are vertically arranged in the linear bearings, and the pressing plates are horizontally arranged at the lower ends of the two guide shafts; the output end of the compaction cylinder passes through the mounting plate and is connected with the pressing plate through a floating joint; the upper pressing block is arranged at the lower side of the pressing plate and is cylindrical and matched with the bearing inner ring; the pressing cylinder drives the pressing plate under the guiding action of the guide shaft and the linear bearing so as to drive the upper pressing block to vertically move up and down;
The positioning clamping assembly is oppositely arranged on the left side and the right side of the base plate and comprises a mounting seat, a sliding rail, a clamping wheel and a clamping cylinder; the mounting seat is of a U-shaped plate structure which is horizontally arranged, a sliding block matched with the sliding rail is arranged on the lower side of the mounting seat, and the sliding rail is arranged on the backing plate; the clamping wheels are respectively arranged at the two ends of the U shape of the mounting seat through the rotating shafts; the clamping cylinder is arranged on a backing plate at one side of the mounting seat, and the extending end of the clamping cylinder is connected with the mounting seat through a floating joint; the center connecting line between the two groups of clamping wheels of the two positioning clamping assemblies is arranged through the circle center of the bearing supporting table;
the rotating assembly is connected with the right positioning clamping assembly and comprises a connecting plate, a driving motor, a synchronous wheel and a synchronous belt; the connecting plate is horizontally arranged at the outer end of the mounting seat, the driving motor is arranged at the outer end of the connecting plate, the output shaft of the driving motor is connected with the wheel shaft of the synchronous wheels through the coupler, the other two synchronous wheels are respectively arranged at the upper ends of the rotating shafts of the two clamping wheels of the mounting seat, and the synchronous belts are respectively wound on the three synchronous wheels;
The measuring assembly comprises two pneumatic displacement sensors which are oppositely arranged, the two pneumatic displacement sensors are respectively arranged on the base plate between the U-shaped openings of the two positioning clamping assembly mounting seats, and the pneumatic displacement sensors are positioned in the middle between the two clamping wheels.
2. The automatic measuring device for the outer diameter and the play of the reduced-grade bearing of the railway carriage according to claim 1, wherein the automatic measuring device is characterized in that: one end of the drag chain component of the upper die is connected to the mounting plate through a bracket, and the other end of the drag chain component is connected to the pressing plate through a bracket and moves up and down along with the pressing plate.
3. The automatic measuring device for the outer diameter and the play of the reduced-grade bearing of the railway carriage according to claim 1, wherein the automatic measuring device is characterized in that: the rotating assembly is also provided with a protective cover.
4. The automatic measuring device for the outer diameter and the play of the reduced-grade bearing of the railway carriage according to claim 1, wherein the automatic measuring device is characterized in that: the positioning boss is round or two arc section structures symmetrically arranged on the same circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323447384.5U CN221350036U (en) | 2023-12-18 | 2023-12-18 | Automatic measuring device for outer diameter and clearance of grade-reducing bearing of railway carriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323447384.5U CN221350036U (en) | 2023-12-18 | 2023-12-18 | Automatic measuring device for outer diameter and clearance of grade-reducing bearing of railway carriage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221350036U true CN221350036U (en) | 2024-07-16 |
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ID=91827154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323447384.5U Active CN221350036U (en) | 2023-12-18 | 2023-12-18 | Automatic measuring device for outer diameter and clearance of grade-reducing bearing of railway carriage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221350036U (en) |
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2023
- 2023-12-18 CN CN202323447384.5U patent/CN221350036U/en active Active
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