Tool for detecting diameter of contact point of four-point contact ball bearing
By designing a tool for detecting the diameter of the contact point of the four-point contact ball bearing, using a combined structure of a standard outer ring, a standard roller and a pedestal, combined with laser ranging technology, the problem of inaccurate detection in the existing technology is solved, and efficient and accurate detection results are achieved.
Patent Information
- Application Number
- CN202422327963.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-23
AI Technical Summary
The prior art is difficult to accurately detect the contact point diameter of the four-point contact ball bearing, which affects the accuracy of the detection.
A tooling including standard outer ring, standard roller and pedestal was designed. Through structures such as arc-shaped positioning grooves, guide grooves, pallets and range-finding plates, combined with laser emitters and receivers, the contact diameter of the four-point contact ball bearing is calculated.
It realizes convenient and accurate detection of the contact point diameter of four-point contact ball bearings, saving manpower and time, and improving work efficiency.
Smart Images
Figure CN223050629U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a tool for detecting the contact point diameter of a four-point contact ball bearing. Background Art
[0002] In a four-point contact ball bearing, the actual contact points of the steel balls on the outer ring raceway do not lie at the bottom of the raceway. There are two actual contact points between the steel balls and the raceway. Under the calculation of actual working conditions, the distance between the actual contact points of two symmetrically arranged steel balls on the outer ring raceway is usually taken as the diameter of the outer ring, and various data calculations are carried out. However, at present, it is difficult to detect such diameter data, which affects the accuracy of detection. Content of the Utility Model
[0003] Aiming at the deficiencies of the prior art, the utility model provides a tool for detecting the contact point diameter of a four-point contact ball bearing, which has a simple structure, can effectively and conveniently detect the contact point diameter of a four-point contact ball bearing, and has a good use effect.
[0004] To achieve the above object, the utility model provides a tool for detecting the contact point diameter of a four-point contact ball bearing, including a standard outer ring, standard rollers and a bench. An arc-shaped positioning groove for making the standard outer ring stand upright is arranged on the bench. Guide grooves are respectively arranged on both side walls of the bench along the height direction. Two supporting plates for positioning the standard rollers on the raceway are slidably matched on the guide grooves. One side of the supporting plate is provided with a guide protrusion for slidingly matching with one of the guide grooves, and the other side is provided with a fastening protrusion. A fastener for fixing the supporting plate is arranged on the fastening protrusion. A notch is formed on the bracket corresponding to the position of the standard roller. A guide post is slidably arranged along the height direction on the notch of the bracket. A distance measuring plate is slidably matched on the guide post. An adjusting rod is in threaded cooperation with the distance measuring plate. The adjusting rod is rotatably connected with the supporting plate. A laser emitter and a receiver for cooperating with the distance measuring plates on the other supporting plate to measure the distance are also arranged on the distance measuring plate.
[0005] The beneficial effect of such a setting is as follows: By placing the standard outer ring on the positioning groove of the bench and simultaneously sliding the supporting plates, the two standard rollers can be positioned on the outer ring. Further, through the distance measuring plate and the threaded cooperation between the distance measuring plate and the adjusting rod, by rotating the adjusting rod, the distance measuring rod can be made to approach the standard roller and lean against the standard roller. Through the cooperation between the laser emitter and the receiver, the distance between the two distance measuring plates is obtained. By adding the thickness of the distance measuring plate, the minimum distance L between the two rollers is obtained. Further, by obtaining the diameter R of the standard roller and the contact angle α of the outer ring raceway, the contact point diameter D of the four-point contact ball bearing is calculated, D = L + R / 2 + 2 / R * cosα. This method is convenient for testing, saves manpower and time, improves work efficiency, and has a good use effect.
[0006] As a further arrangement of the present utility model, a connection hole is provided on the fastening protrusion corresponding to the position of the guiding groove, the fastener is provided as a fastening screw, the rod portion of the fastening screw is in threaded fit with the connection hole, and the head of the fastening screw abuts against the outer wall of the guiding groove.
[0007] The beneficial effects of such an arrangement are as follows: With such an arrangement, this fastening method is simple and has a good fastening effect. Moreover, after loosening, the pallet can move conveniently, facilitating the positioning of the standard roller, and has a good usage effect.
[0008] As a further arrangement of the present utility model, the contact surface between the pallet and the standard roller includes a lower part and a higher part, and the lower part and the higher part are connected by a smooth curved surface.
[0009] The beneficial effects of such an arrangement are as follows: With such an arrangement, when the pallet contacts the standard bearing at the high point, through such a contact surface, the standard bearing can fall to the lowest point of the bracket and then contact the standard outer ring raceway, so as to ensure that the standard bearing can be at the high point of the outer ring raceway, thereby ensuring the accuracy of data detection. At the same time, this structure is simple and the operation is convenient, and it has a good usage effect.
[0010] As a further arrangement of the present utility model, an anti-slip pad is provided in the arc-shaped positioning groove on the bench.
[0011] The beneficial effects of such an arrangement are as follows: With such an arrangement, it is convenient to keep the position of the standard outer ring stable and avoid loosening. At the same time, the structure is simple, the positioning and installation are reliable, and it has a good usage effect. Description of the Drawings
[0012] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;
[0013] Figure 2 is a schematic cross-sectional structural diagram of an embodiment of the present utility model. Detailed Embodiments
[0014] The present utility model provides an implementation manner of a tool for detecting the contact point diameter of a four-point contact ball bearing, as Figures 1 to 2As shown in the figure, it includes a standard outer ring, standard rollers, and a bench 1. An arc-shaped positioning groove 12 for making the standard outer ring stand upright is provided on the bench 1. Guide grooves 11 are respectively provided on both side walls of the bench 1 along the height direction. Two support plates 2 for positioning the standard rollers on the raceway are slidably fitted on the guide grooves 11. A guide protrusion 21 for slidably mating with one of the guide grooves 11 is provided on one side of the support plate 2, and a fastening protrusion 23 is provided on the other side. A fastener 3 for fixing the support plate 2 is provided on the fastening protrusion 23. A notch 22 is formed on the support corresponding to the position of the standard roller. A guide post is slidably provided on the support corresponding to the notch 22 along the height direction. A distance measuring plate 4 is slidably fitted on the guide post. An adjusting rod 41 is threadedly fitted on the distance measuring plate 4. The adjusting rod 41 is rotatably connected to the support plate 2. A laser emitter and a receiver for measuring the distance in cooperation with the distance measuring plate 4 on the other support plate 2 are further provided on the distance measuring plate 4. The beneficial effect of such a setting is as follows: By placing the standard outer ring on the positioning groove of the bench 1 and simultaneously sliding the support plate 2, the two standard rollers can be positioned on the outer ring. Further, through the distance measuring plate 4 and the threaded fit between the distance measuring plate 4 and the adjusting rod 41, by rotating the adjusting rod 41, the distance measuring rod can be made to approach the standard roller and lean against the standard roller. Through the cooperation of the laser emitter and the receiver, the distance between the two distance measuring plates 4 is obtained. By adding the thickness of the distance measuring plate 4, the minimum distance L between the two rollers is obtained. Further, by obtaining the standard roller diameter R and the contact angle α of the outer ring raceway, the contact point diameter D of the four-point contact ball bearing is calculated, D = L + R / 2 + 2 / R * cosα. This testing method is convenient, saves manpower and time, improves work efficiency, and has good use effects.
[0015] As a further setting of this embodiment, a connection hole is provided on the fastening protrusion 23 corresponding to the position of the guide groove 11. The fastener 3 is set as a fastening screw. The rod part of the fastening screw is threadedly fitted with the connection hole, and the head of the fastening screw abuts against the outer wall of the guide groove 11. The beneficial effect of such a setting is as follows: By such a setting, this fastening method is simple, has good fastening effects, and after loosening, the support plate 2 can move conveniently, facilitating the positioning of the standard rollers, and has good use effects.
[0016] As a further setting of this embodiment, the contact surface between the support plate 2 and the standard roller includes a lower part and a higher part, and the lower part and the higher part are connected by a smooth curved surface. The beneficial effect of such a setting is as follows: By such a setting, when the support plate 2 contacts the standard bearing at the high point, through such a contact surface, the standard bearing can fall to the lowest point of the support before contacting the outer ring raceway, so as to ensure that the standard bearing can be at the high point of the outer ring raceway, thereby ensuring the accuracy of data detection. At the same time, this structure is simple and the operation is convenient, and has good use effects.
[0017] As a further setting of this embodiment, an anti-slip pad is provided in the arc-shaped positioning groove 12 on the bench 1. The beneficial effect of such a setting is as follows: With such a setting, it is convenient to keep the position of the standard outer ring stable and avoid loosening. At the same time, the structure is simple, the positioning and installation are reliable, and it has a good use effect.
[0018] The above examples are only one of the preferred specific examples of the present utility model. The ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are included in the protection scope of the present utility model.
Claims
1. A tool for detecting the contact point diameter of a four-point contact ball bearing, characterized in that: It includes a standard outer ring, a standard roller and a stand, wherein the stand is provided with an arc-shaped positioning groove for making the standard outer ring upright, guide grooves are respectively provided on the two side walls of the stand along the height direction, two support plates for positioning the standard roller on the raceway are slidably matched on the guide grooves, a guide protrusion for slidingly matching with one of the guide grooves is provided on one side of the support plate, and a fastening protrusion is provided on the other side, a fastener for fixing the support plate is provided on the fastening protrusion, a notch is formed on the support plate corresponding to the position of the standard roller, a guide column is slidably provided on the support plate corresponding to the notch along the height direction, a distance measuring plate is slidably matched on the guide column, an adjusting rod is threadedly matched on the distance measuring plate, the adjusting rod is rotatably connected to the support plate, and a laser transmitter and a receiver for measuring the distance in cooperation with the distance measuring plate on the other support plate are also provided on the distance measuring plate.
2. The tooling for detecting the contact point diameter of a four-point contact ball bearing according to claim 1, characterized in that: A connecting hole is arranged on the fastening protrusion at a position corresponding to the guide groove, the fastener is arranged as a fastening screw, the fastening screw rod is threadably matched with the connecting hole, and the fastening screw head abuts against the outer wall of the guide groove.
3. The tooling for detecting the contact point diameter of a four-point contact ball bearing according to claim 1, characterized in that: The contact surface between the support plate and the standard roller includes a low portion and a high portion, and the low portion and the high portion are connected by a smooth curved surface.
4. The tooling for detecting the contact point diameter of a four-point contact ball bearing according to claim 1, characterized in that: An anti-slip pad is arranged in the arc-shaped positioning groove on the stand.