Auxiliary tool for measuring assembly height of conical bearing
By designing a measurement auxiliary tooling including cover plate, height block and pad plate, directly measuring the high assembly of conical bearings, the problem of insufficient measurement complexity and accuracy in the prior art is solved, and more efficient and accurate measurement results are achieved.
Patent Information
- Application Number
- CN202411293416.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-05-02
AI Technical Summary
When measuring the height of the conical bearing assembly, the prior art requires measuring the height of the pad, which increases the measurement steps and computational complexity.
A measurement auxiliary tool for including cover plate, height block and pad plate is designed. Through the design of cover plate and pad plate, the bearing assembly height is directly measured, avoiding measurement of the pad height.
The measurement steps are simplified, the accuracy and efficiency of assembly are improved, and the computational complexity is reduced.
Smart Images
Figure CN119915162A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of tapered bearing measurement, and specifically relates to an auxiliary tool for measuring the assembly height of a tapered bearing, which is used for measuring the assembly height of a tapered bearing, improving the measurement accuracy of the assembly height, and increasing the detection efficiency. Background Art
[0002] The products of Xiangzhou Company are constantly diversified, specialized and professional. Double-row unit products are also the company's key development targets, and the structural types have also changed. For example, the BTH-0087E product has a special product structure. It is a double-row bearing unit composed of two sets of single-row tapered bearings. When matching the product with clearance, it is necessary to measure the assembly height data of the single-row bearing, and then calculate the small assembly height through the assembly height and the inner ring height, so as to obtain the clearance of the whole set of products. In the previous assembly height measurement, because the width of the inner and outer rings of the bearing is the same, it is necessary to find a pad to support the product from the bottom of the inner ring, so that the inner and outer ring raceways can be fully in contact with the rolling body conical surface, and then measure the overall height of the product and the pad, and finally subtract the height of the pad to obtain the assembly height of the product. This adds an additional process of measuring the pad height, which is not convenient for the calculation of the final size. Summary of the invention
[0003] The purpose of the present invention is to design a high-assist tool for measuring tapered bearing assembly with simple structure and convenient operation in view of the above-mentioned shortcomings.
[0004] The technical solution of the present invention is: an auxiliary tooling for measuring the assembly height of a tapered bearing, which is characterized by: comprising a cover plate, a height block and a pad; the cover plate is disc-shaped, and the upper and lower end surfaces are parallel; the height block is a rectangular parallelepiped, and the upper and lower end surfaces are parallel, and the height is the nominal size of the measured bearing assembly height; the upper and lower parts of the pad are two stepped circular structures, and the upper and lower stepped circular planes are parallel.
[0005] In the technical solution of the present invention, the bottom surface of the cover plate is provided with a cylindrical inner hole.
[0006] The outer diameter of the cover plate in the technical solution of the present invention is consistent with the outer diameter of the outer ring of the bearing to be measured.
[0007] The material of the cover plate in the technical solution of the present invention is GCr15, which needs to be quenched to a hardness of HRC55-62, and the upper and lower ends are ground surfaces, and the parallelism difference and flatness are not greater than 0.002mm.
[0008] In the technical solution of the present invention, the top surface of the cover plate is provided with a circular ring groove.
[0009] The pad in the technical solution of the present invention is a two-step circular ring; the outer diameter of the large circular ring of the pad is consistent with the outer diameter of the outer ring of the measured bearing, and the outer diameter of the small circular ring is consistent with the outer diameter of the large rib of the inner ring of the measured bearing.
[0010] In the technical solution of the present invention, the inner diameter of the large circular ring of the pad is 10 cm smaller than the outer diameter of the large circular ring, and the inner diameter of the small circular ring is consistent with the inner diameter of the bearing.
[0011] The material of the pad described in the technical solution of the present invention is GCr15, which needs to be quenched to a hardness of HRC55-62, and the upper and lower ends are ground surfaces, and the parallelism difference and flatness are not greater than 0.002mm.
[0012] The material of the height block in the technical solution of the present invention is GCr15, which needs to be quenched to a hardness of HRC55-62, and the upper and lower ends are ground surfaces, and the parallelism difference and flatness are not greater than 0.002mm.
[0013] The technical solution of the present invention also includes an instrument, which is a bearing height measuring instrument.
[0014] The present invention adopts a kind of auxiliary tooling for measuring the assembly height of a tapered bearing, which is composed of a cover plate, a height block and a pad, wherein the cover plate is in the shape of a disk, and the upper and lower end surfaces are parallel, the height block is a cuboid, and the upper and lower end surfaces are parallel, and the height is the nominal size of the assembly height of the measured bearing, and the upper and lower parts of the pad are two stepped circular structures, and the upper and lower two stepped circular planes are parallel. Therefore, when measuring the assembly height of the tapered bearing, the height block, the cover plate and the pad can be placed on the table of the instrument from top to bottom, wherein the large circular end surface of the pad faces upward, the probe is hit at the center of the cover plate, and the height block is used for table alignment, and then the height block is removed, and the large circular end surface of the pad faces downward, and the measured bearing is placed between the cover plate and the pad, and the probe is hit at the center of the cover plate, and the needle reading at this time is the bearing assembly height deviation. The present invention does not need to measure the actual height value of the pad.
[0015] The invention has the characteristics of simple structure, convenient processing, improved measurement accuracy of assembly height and improved measurement efficiency, and is mainly used for auxiliary measurement of assembly height of tapered bearings. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a cross-sectional schematic diagram of the cover plate of the present invention.
[0017] Figure 2 It is a schematic diagram of the height block of the present invention.
[0018] Figure 3 It is a schematic cross-sectional view of the pad of the present invention.
[0019] Figure 4 This is intended to illustrate the present invention.
[0020] Figure 5 A schematic diagram is used for the present invention.
[0021] Figure numbers: 1-probe; 2-cover plate; 3-height block; 4-outer ring; 5-inner ring; 6-backing plate; 7-instrument. DETAILED DESCRIPTION
[0022] The present invention will be further described below in conjunction with the accompanying drawings.
[0023] like Figure 1 , Figure 2 , Figure 3 As shown, an embodiment of an auxiliary tool for measuring the assembly height of a tapered bearing of the present invention is composed of a cover plate 2, a height block 3 and a pad 6.
[0024] The main body of the cover plate 2 is in the shape of a disk, with a cylindrical inner hole on the bottom surface and a circular groove on the top surface, and the upper and lower end surfaces are parallel. The disk is 15 cm thick, the wall thickness is 5 cm, the inner hole is 10 cm deep, and the outer diameter is consistent with the outer diameter of the outer ring 4 of the measured bearing. The upper and lower ends need to be ground to ensure that the parallel error and parallelism are not greater than 0.002 mm. The material is GCr15 and needs to be quenched to a hardness of HRC55-62. The circular groove is set on the top surface mainly to facilitate the probe 1 to align with the center of the cover plate 2.
[0025] The main body of the height block 3 is a rectangular parallelepiped with parallel upper and lower end faces, a thickness of 10 cm, and a length consistent with the nominal size of the measured bearing assembly height, with an error within the range of ±0.001 mm. The upper and lower ends need to be ground to ensure that the parallelism error and flatness are no more than 0.002 mm. The material is GCr15 and needs to be quenched to a hardness of HRC55-62.
[0026] The main body of the pad 6 is a two-step circular ring, consisting of two upper and lower circular protrusion structures, and the upper and lower stepped circular planes are parallel. The outer diameter of the large circular ring of the pad 6 is consistent with the outer diameter of the outer ring 4 of the measured bearing, the outer diameter of the small circular ring is consistent with the outer diameter of the large rib of the inner ring 5 of the measured bearing, the inner diameter of the large circular ring is 10cm smaller than the outer diameter of the large circular ring, and the inner diameter of the small circular ring is consistent with the inner diameter of the measured bearing. The thickness of the large and small circular ring protrusions is about 5cm, the thickness of the middle part is about 10cm, and the overall thickness of the tooling is about 20cm. The upper and lower circular planes need to be ground to ensure that the parallel difference and flatness are not greater than the requirement of 0.002mm. The material is GCr15 and needs to be quenched to a hardness of HRC55-62.
[0027] The instrument 7 is a bearing height measuring instrument, which is prior art and includes a probe 1 .
[0028] Directions: First, place the small end of the pad 6 downward on the table of the instrument 7 to make it fully fit, place the cover plate 2 on the large end of the pad 6 to make it fully fit, then place the height block 3 on the cover plate 2 to make it fully fit, and then hit the probe 1 on the height block 3 to complete the alignment. The pointer reading of the instrument 7 at this time is the nominal size value of the measured bearing assembly height. After the alignment is completed, take out the cover plate 2, height block 3 and pad 6, and then place the large end of the pad 6 downward on the table of the instrument 7 to make it fully fit (Note: the pad 6 is placed forward and backward, and the overall height of the pad 6 will not change), and place one row of the measured bearing unit (a double-row tapered bearing unit with model BTH-0087E) on the pad 6. Place the cover plate 2 on the large end of the bearing outer ring 4 to make it fully fit with the large end face of the bearing inner ring 5 (Note: because the width of the measured bearing outer ring 4 and the inner ring 5 are the same, the measured bearing needs to be supported during measurement so that the small end face of the measured bearing outer ring 4 will not contact the table of the instrument 7 to ensure the accuracy of the measurement result), then place the cover plate 2 on the large end of the bearing outer ring 4 to make it fully fit, then hit the probe 1 at the center of the cover plate 2, press the cover plate 2 with both hands and slowly rotate it to make all parts of the bearing fully contact. The pointer reading at this time is the deviation of the bearing assembly height relative to the nominal size. Measure the deviation of the bearing assembly height of another row in the same way. The clearance of the entire bearing unit can be obtained by measuring the deviation of the bearing assembly height twice.
[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.
Claims
1. A high-assist tool for measuring tapered bearing assembly, characterized by: It comprises a cover plate (2), a height block (3) and a backing plate (6); the cover plate (2) is in the shape of a disk, with upper and lower end surfaces being parallel; the height block (3) is in the shape of a cuboid, with upper and lower end surfaces being parallel, and the height being the nominal dimension of the assembly height of the bearing to be measured; the top and bottom of the backing plate (6) are two stepped circular structures, with the upper and lower stepped circular planes being parallel.
2. The high-assisted tool for measuring tapered bearing assembly according to claim 1 is characterized by: The bottom surface of the cover plate (2) is provided with a cylindrical inner hole.
3. The high-assisted tool for measuring tapered bearing assembly according to claim 2 is characterized by: The outer diameter of the cover plate (2) is consistent with the outer diameter of the outer ring of the bearing to be measured.
4. The high-assisted tooling for measuring tapered bearing assembly according to claim 3 is characterized by: The cover plate (2) is made of GCr15 and needs to be quenched to a hardness of HRC55-62. The upper and lower ends are ground surfaces, and the parallelism difference and flatness are not greater than 0.002 mm.
5. The high-assisted tool for measuring tapered bearing assembly according to claim 4 is characterized by: The top surface of the cover plate (2) is provided with a circular groove.
6. A high-assisted tool for measuring tapered bearing assembly according to any one of claims 1 to 5, characterized in that: The backing plate (6) is a two-step circular ring; the outer diameter of the large circular ring of the backing plate (6) is consistent with the outer diameter of the outer ring (4) of the measured bearing, and the outer diameter of the small circular ring is consistent with the outer diameter of the large rib of the inner ring (5) of the measured bearing.
7. The high-assisted tool for measuring tapered bearing assembly according to claim 6 is characterized by: The inner diameter of the large ring of the pad (6) is 10 cm smaller than the outer diameter of the large ring, and the inner diameter of the small ring is consistent with the inner diameter of the bearing.
8. The auxiliary tool for measuring the assembly height of a tapered bearing according to claim 7 is characterized by: The material of the pad (6) is GCr15, which needs to be quenched to a hardness of HRC55-62, and the upper and lower ends are ground surfaces, with a parallelism difference and flatness of no more than 0.002 mm.
9. A high-assisted tool for measuring tapered bearing assembly according to any one of claims 1-5, 7-8, characterized in that: The material of the height block (3) is GCr15, which needs to be quenched to a hardness of HRC55-62, and the upper and lower ends are ground surfaces, with a parallelism error and flatness of no more than 0.002 mm.
10. A high-assisted tool for measuring tapered bearing assembly according to any one of claims 1-5, 7-8, characterized in that: It also includes an instrument (7), which is a bearing height measuring instrument.