CN213364175U - Tapered roller bearing axial rigidity measures auxiliary fixtures - Google Patents
Tapered roller bearing axial rigidity measures auxiliary fixtures Download PDFInfo
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- CN213364175U CN213364175U CN202022707680.4U CN202022707680U CN213364175U CN 213364175 U CN213364175 U CN 213364175U CN 202022707680 U CN202022707680 U CN 202022707680U CN 213364175 U CN213364175 U CN 213364175U
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Abstract
The utility model discloses a tapered roller bearing axial stiffness measures auxiliary fixtures. Belongs to the technical field of machining process equipment. The problem that when an existing press machine is used for bearing rigidity measurement tests, the error is large due to the fact that the existing press machine is direct and simple to measure, an auxiliary tool specially corresponding to bearing rigidity measurement does not exist, and potential safety hazards exist is mainly solved. It is mainly characterized in that: comprises a mandrel, a base and a cover plate; the mandrel is provided with a cylindrical step matched with the first bearing to be measured, and the center of the mandrel is provided with a measuring column; the base is provided with a cylindrical step matched with the second bearing to be measured, and the center of the base is provided with a through hole; the upper part and the lower part of the cover plate are respectively provided with a cylindrical groove matched with the first measured bearing and the second measured bearing, and the center of the cover plate is provided with a through hole. The utility model has the advantages of multiple sets of measurement and averaging, high accuracy; the axial positioning is accurate; the potential safety hazard during measurement is low; the device has the characteristics of simple structure, convenience for processing and repeated use, and is mainly used for measuring the axial rigidity of the tapered roller bearing on the axial press.
Description
Technical Field
The utility model belongs to the technical field of machining process equipment, concretely relates to auxiliary fixtures for measuring tapered roller bearing axial stiffness.
Background
At present, the requirements of manufacturers in the industry and bearing hosts on the rigidity of bearings are more and more urgent, and particularly in the directions of a main shaft bearing of a precision machine tool, a high-speed bearing, a bearing of an automobile transmission system and a bearing of a hub unit, when the manufacturers of the hosts carry out bearing installation and pre-tightening, the manufacturers of the bearings need to find the optimal pre-tightening amount for installation, and often hope that the manufacturers of the bearings can provide rigidity test data and measurement curves corresponding to the bearings. In the mechanical industry, a 10T and 30T pressure tester can carry out a material elastic displacement test according to a metal material room temperature compression test method at present, but a tester manufacturer does not provide an auxiliary tool for measuring the rigidity of a bearing. The conical bearing is of a separable structure, a retainer of the bearing is an axial movable part, the outer diameter of the conical bearing produced conventionally in the industry is from 30mm to 280 mm, and an auxiliary tool device for axial rigidity measurement needs to be developed and designed for rigidity detection.
Disclosure of Invention
The utility model aims at providing a can measure tapered roller bearing axial rigidity's auxiliary fixtures device to above-mentioned weak point, can satisfy the characteristic requirement of product, can be faster again, more stable, more accurate measure, satisfy the measurement demand.
The technical solution of the utility model is that: the utility model provides a tapered roller bearing axial rigidity measures auxiliary fixtures which characterized in that: comprises a mandrel, a base and a cover plate; the mandrel is provided with a cylindrical step matched with the inner diameter surface and the outer end surface of the first bearing to be measured, and a measuring column is arranged in the center of the mandrel; the base is provided with a cylindrical step matched with the inner diameter surface and the outer end surface of the second measured bearing, and the center of the base is provided with a through hole for the measuring column to pass through; the upper and lower parts of the cover plate are respectively provided with a cylindrical groove matched with the outer diameter surface and the outer end surface of the first measured bearing and the second measured bearing, and the center of the cover plate is provided with a through hole.
The technical solution of the utility model in the base be equipped with the press support recess complex cylindric step.
The technical solution of the utility model in the measuring column cooperate with press pressure sensor.
The technical solution of the utility model is that the mandrel is provided with a circular plane matched with the pressure head of the press.
The mandrel in the technical proposal of the utility model is a three-stage cylindrical step shaft with successively reduced diameter; the base is a three-stage cylindrical step shaft with a cylindrical through hole in the center; the cover plate is cylindrical, and the through hole in the center is a circular through hole.
The technical solution of the utility model in the last cylindric groove diameter of apron be the same with first measured bearing external diameter, cylindric groove diameter is the same with second measured bearing (4) external diameter down.
The first step shaft diameter of the mandrel in the technical proposal of the utility model is positioned between the inner diameter of the first tested bearing inner ring and the diameter of the inner ring large flange; the shaft diameter of the second-stage step shaft is the same as the inner diameter of the first measured bearing; the shaft diameter of the third step is smaller than the inner diameter of the first measured bearing.
The shaft diameter of the first-stage step shaft of the base in the technical solution of the utility model is the same as the inner diameter of the second measured bearing; the shaft diameter of the second-stage step shaft is between the inner diameter of the second tested bearing inner ring and the diameter of the inner ring large flange; the shaft diameter of the third-stage step shaft is the same as the size of the support groove of the measuring press.
The diameter of the circular through hole of the cover plate in the technical solution of the utility model is larger than the diameter of the outer raceway of the big end of the outer ring of the first tested bearing and the second tested bearing; the height of the circular through hole of the cover plate is larger than the axial displacement of the first tested bearing and the second tested bearing retainer.
In the technical proposal of the utility model, the step of the mandrel is provided with a tool withdrawal groove; a tool withdrawal groove is formed in the step of the base; the bottom of the groove of the cover plate is provided with a tool withdrawal groove.
The utility model adopts the auxiliary tool for measuring the axial rigidity of the tapered roller bearing, which consists of a mandrel, a base and a cover plate, wherein the mandrel is provided with a cylindrical step matched with the inner diameter surface and the outer end surface of a first measured bearing, the center is provided with a measuring column, the base is provided with a cylindrical step matched with the inner diameter surface and the outer end surface of a second measured bearing, the center is provided with a through hole for the measuring column to pass through, the upper part and the lower part of the cover plate are respectively provided with a cylindrical groove matched with the outer diameter surface and the outer end surface of the first measured bearing and the second measured bearing, the center is provided with a through hole, thereby the first measured bearing and the second measured bearing can be accurately positioned axially, the interference of the axial movement of a bearing retainer can be avoided when the axial rigidity of the first measured bearing and the second measured bearing is measured, the axial rigidity of the two bearings can be measured simultaneously under the existing capability of the measuring equipment, and the average value of the bearings with the same measurement is taken, so that the measurement is more accurate.
The utility model discloses a wrap up formula design, reduced the potential safety hazard when carrying out big load axial force rigidity measurement. The utility model discloses simple structure is practical, is convenient for process and used repeatedly.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a mandrel; 2. a first measured bearing; 3. a cover plate; 4. a second measured bearing; 5. the press machine supports the groove; 6. a press pressure sensor; 7. a base; 8. and (4) a press head.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1. The utility model relates to a tapered roller bearing axial rigidity measures an embodiment of auxiliary fixtures comprises mandrel 1, base 7 and apron 3, and two first measured bearings 2 that the structure is the same of clamping simultaneously and second measured bearing 4 utilize current press can measure tapered roller bearing's rigidity.
The back of the mandrel 1 is provided with a three-stage cylindrical step shaft, and the shaft diameters of the step shafts are sequentially reduced. The front side of the mandrel 1 is provided with a circular plane which is matched with a pressure head 8 of the press machine. The diameter of the first-stage step shaft of the mandrel 1 is between the inner diameter of the inner ring of the first tested bearing 2 and the diameter of the large flange of the inner ring. The shaft diameter size of the second-stage step of the mandrel 1 is the same as the inner diameter of the first tested bearing 2, and the cylindrical step between the first-stage step shaft and the second-stage step shaft of the mandrel 1 is matched with the inner diameter surface and the outer end surface of the first tested bearing 2. The third step shaft of the mandrel 1 is a measuring column, the diameter of the shaft is smaller than the inner diameter of the first measured bearing 2, and the shaft is matched with a pressure sensor 6 of the press machine. The step of the mandrel 1 is provided with a tool withdrawal groove.
The base 7 is provided with a three-level cylindrical step shaft, and the center of the base is provided with a cylindrical through hole which is convenient for the measuring column to pass through. The base 7 has the same shaft diameter size of the first-stage step shaft as the inner diameter of the second measured bearing 4, the shaft diameter size of the second-stage step shaft is positioned between the inner diameter of the inner ring of the second measured bearing 4 and the diameter of the large flange of the inner ring, and the cylindrical step between the first-stage step shaft and the second-stage step shaft is matched with the inner diameter surface and the outer end surface of the second measured bearing 4. The diameter of the shaft of the third-stage step shaft of the base 7 is the same as that of the support groove 5 of the press machine, and the cylindrical step between the second-stage step shaft and the third-stage step shaft is matched with the boss of the support groove 5 of the press machine, so that the auxiliary tool can be conveniently installed on the press machine for rigidity measurement. The step of the base 7 is provided with a tool withdrawal groove.
The front and the back of the cover plate 3 are respectively provided with a cylindrical groove matched with the outer diameter surface and the outer end surface of the first measured bearing 2 and the second measured bearing 4. The cover plate 3 is cylindrical, and a circular through hole is formed in the center. The diameter of the cylindrical groove on the front surface of the cover plate 3 is the same as the outer diameter of the first measured bearing 2, and the diameter of the cylindrical groove on the back surface is the same as the outer diameter of the second measured bearing 4. The diameter of the circular through hole of the cover plate 3 is larger than the diameters of the large-end outer raceways of the outer rings of the first measured bearing 2 and the second measured bearing 4, and the height of the circular through hole is larger than the axial displacement of the retainer of the first measured bearing 2 and the second measured bearing 4. The groove bottom of the cover plate 3 is provided with a tool withdrawal groove.
The first tested bearing 2 and the second tested bearing 4 can be completely and fixedly placed in the circular groove of the cover plate 3, the shaft diameter of the second step of the mandrel 1 can be completely clamped into the inner diameter of the bearing 2, and the shaft diameter of the third step of the mandrel can be contacted with the pressure sensor 6 of the press machine through the cylindrical through hole of the cover plate 3 and the cylindrical through hole of the base 7. When the press ram 8 exerts an axial force, the axial displacement of the first measured bearing 2 and the second measured bearing 4 can be transmitted to the press pressure sensor 6. The cover plate 3 can drive the first measured bearing 2 and the second measured bearing 4 to rotate for measurement.
Claims (10)
1. The utility model provides a tapered roller bearing axial rigidity measures auxiliary fixtures which characterized in that: comprises a mandrel (1), a base (7) and a cover plate (3); the mandrel (1) is provided with a cylindrical step matched with the inner diameter surface and the outer end surface of the first bearing (2) to be measured, and the center of the mandrel is provided with a measuring column; the base (7) is provided with a cylindrical step matched with the inner diameter surface and the outer end surface of the second measured bearing (4), and the center of the base is provided with a through hole for the measuring column to pass through; the upper and lower parts of the cover plate (3) are respectively provided with a cylindrical groove matched with the outer diameter surface and the outer end surface of the first measured bearing (2) and the second measured bearing (4), and the center of the cover plate is provided with a through hole.
2. The tapered roller bearing axial rigidity measurement auxiliary fixtures of claim 1, characterized in that: the base (7) is provided with a cylindrical step matched with the support groove (5) of the press machine.
3. The tapered roller bearing axial rigidity measurement auxiliary tool according to claim 1 or 2, characterized in that: the measuring column is matched with a pressure sensor (6) of the press machine.
4. The tapered roller bearing axial rigidity measurement auxiliary tool according to claim 1 or 2, characterized in that: the mandrel (1) is provided with a circular plane matched with the pressure head (8) of the press.
5. The tapered roller bearing axial rigidity measurement auxiliary tool according to claim 1 or 2, characterized in that: the mandrel (1) is a three-stage cylindrical step shaft with the diameter gradually reduced; the base (7) is a three-stage cylindrical step shaft provided with a cylindrical through hole at the center; the cover plate (3) is cylindrical, and the through hole in the center is a circular through hole.
6. The tapered roller bearing axial rigidity measurement auxiliary fixtures of claim 5, characterized in that: the diameter of the upper cylindrical groove of the cover plate (3) is the same as the outer diameter of the first tested bearing (2), and the diameter of the lower cylindrical groove is the same as the outer diameter of the second tested bearing (4).
7. The tapered roller bearing axial rigidity measurement auxiliary fixtures of claim 5, characterized in that: the shaft diameter of the first-stage step shaft of the mandrel (1) is positioned between the inner diameter of the inner ring of the first tested bearing (2) and the diameter of the large flange of the inner ring; the shaft diameter of the second-stage step shaft is the same as the inner diameter of the first tested bearing (2); the shaft diameter of the third step is smaller than the inner diameter of the first measured bearing (2).
8. The tapered roller bearing axial rigidity measurement auxiliary fixtures of claim 5, characterized in that: the shaft diameter of the first-stage step shaft of the base (7) is the same as the inner diameter of the second bearing (4) to be measured; the shaft diameter of the second-stage step shaft is positioned between the inner diameter of the inner ring of the second tested bearing (4) and the diameter of the large flange of the inner ring; the shaft diameter of the third stage step shaft is the same as the size of the support groove (5) of the measuring press machine.
9. The tapered roller bearing axial rigidity measurement auxiliary fixtures of claim 5, characterized in that: the diameter of the circular through hole of the cover plate (3) is larger than the diameters of the outer raceways of the large ends of the outer rings of the first bearing (2) to be tested and the second bearing (4) to be tested; the height of the circular through hole of the cover plate (3) is larger than the axial displacement of the first tested bearing (2) and the second tested bearing (4) retainer.
10. The tapered roller bearing axial rigidity measurement auxiliary fixtures of claim 5, characterized in that: a tool withdrawal groove is formed in the step of the mandrel (1); a tool withdrawal groove is formed in the step of the base (7); the cover plate (3) is provided with a tool withdrawal groove at the bottom of the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022707680.4U CN213364175U (en) | 2020-11-20 | 2020-11-20 | Tapered roller bearing axial rigidity measures auxiliary fixtures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022707680.4U CN213364175U (en) | 2020-11-20 | 2020-11-20 | Tapered roller bearing axial rigidity measures auxiliary fixtures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213364175U true CN213364175U (en) | 2021-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022707680.4U Active CN213364175U (en) | 2020-11-20 | 2020-11-20 | Tapered roller bearing axial rigidity measures auxiliary fixtures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213364175U (en) |
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2020
- 2020-11-20 CN CN202022707680.4U patent/CN213364175U/en active Active
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