Angular contact bearing pre-tightening force fixing combined tool
By designing a preload combination tool for angular contact bearings, the threaded fit of the shell sleeve and end cover and the torque feedback of the load cover are solved, and the measurement accuracy and test reliability are improved.
Patent Information
- Application Number
- CN202422442611.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The prior art is difficult to effectively position and apply preloading forces to diagonally contact bearings, affecting measurement accuracy and results.
A angular contact bearing fixed preload combination tool is designed, including a housing sleeve and an end cover, which limits the bearing by abutting the inner wall and the retaining edge, and applies preloading force through threaded fit, combining the loading cover and the torque wrench to achieve feedback of the preload force.
Effective positioning and pre-tensioning of diagonal contact bearings is achieved, measurement accuracy and reliability are improved, and rotation accuracy, clearance, vibration, torque and other tests are facilitated.
Smart Images
Figure CN223122382U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a combined tooling for determining the pre-tightening force of angular contact bearings. Background Technique
[0002] Bearings are important components used for the rotational support of mechanical bodies. As bearings are more involved in all aspects of our work and life, bearings also need to be optimized and adjusted to cope with various different usage scenarios. For example, among them, angular contact bearings are ball bearings in which the connecting line of the contact points between the steel balls and the inner and outer rings forms a certain angle with the outer diameter. They can simultaneously bear radial loads and axial loads in a single direction. In order to correspond to the situation where angular contact bearings are often used in pairs symmetrically, this type of bearing is also gradually moving from single-set measurement to paired and grouped measurement along with the current situation. And the measurement results are greatly affected by the pre-tightening force. Conventional locking is difficult to meet the accuracy requirements of the measurement results. Being able to apply a certain pre-tightening plays a key role in completing the measurement. Content of the Utility Model
[0003] Aiming at the deficiencies of the prior art, the utility model provides a combined tooling for determining the pre-tightening force of angular contact bearings, which can position the angular contact bearings to be measured in pairs and apply a certain pre-tightening force.
[0004] To achieve the above object, the utility model provides a combined tooling for determining the pre-tightening force of angular contact bearings, including a shell sleeve and an end cover. The shell sleeve can accommodate a pair of bearings to be measured. The shell sleeve includes an abutting inner wall and a first edge. The abutting inner wall is used for abutting and cooperating with the outer peripheral wall of the bearing to be measured. The first edge is used for abutting and cooperating with one end of the bearing to be measured. The end cover includes a screwing portion and a second edge. The end cover can form a screwing fit with the outer wall of the shell sleeve through the screwing portion. The second edge is used for forming an abutting fit with the other end of the bearing to be measured. And through holes for the mandrel to pass through are respectively arranged at the positions of the shell sleeve and the end cover corresponding to the first edge and the second edge.
[0005] The advantages of adopting the above technical solution are: by setting the shell sleeve and the end cover, the shell sleeve can accommodate a pair of bearings to be measured. Then, an abutting inner wall and a first edge are arranged on the shell sleeve, so that the abutting inner wall abuts and cooperates with the outer periphery of the bearing to be measured to achieve the limiting effect. Then, a screwing portion and a second edge are arranged on the end cover, so that the first edge and the second edge can abut against the axial two ends of the pair of bearings to be measured. After that, by relatively rotating the shell sleeve and the end cover, the screwed shell sleeve and end cover are brought closer until the first edge and the second edge respectively abut against the two ends of the pair of bearings to be measured, applying a pre-tightening force on the basis of providing bearing positioning, which is convenient for subsequent tests such as rotational accuracy, clearance, vibration, torque, and stiffness.
[0006] The present utility model can be further configured as follows: It further includes a loading cover, the loading cover is detachably arranged on the end cover, and there is an anti-rotation fit between the loading cover and the end cover. An adjustment hole is arranged in the middle of the loading cover, and the adjustment hole is polygonally arranged.
[0007] Through further setting, a loading cover is also provided. The loading cover is detachably arranged on the end cover and forms an anti-rotation fit with the end cover. Then, a polygonal adjustment hole is arranged in the middle of the loading cover, which can cooperate with a torque wrench for it to be installed on the loading cover. When using, by circumferentially moving the torque wrench, at this time the loading cover will rotate with it and drive the end cover to rotate relative to the housing sleeve. During the process of the end cover rotating and tightening on the housing sleeve, the end cover and the housing sleeve will form a pressing on the paired angular contact bearings, and the situation of the pre-tightening force can be fed back through the reading table on the torque wrench.
[0008] The present utility model can be further configured as follows: A protrusion is arranged on the end cover, and the loading cover is sleeved on the protrusion.
[0009] Through further setting, a protrusion is arranged on the end cover for the installation of the loading cover, which facilitates the connection between the two.
[0010] The present utility model can be further configured as follows: A number of arc segments and a number of straight segments are arranged on the protrusion, the arc segments and the straight segments are arranged alternately, and the loading cover is sleeved at the positions corresponding to the number of arc segments and the number of straight segments of the protrusion.
[0011] Through further setting, a number of alternately arranged arc segments and a number of straight segments are arranged on the protrusion, and then the loading cover is sleeved at the corresponding positions, thereby forming an anti-rotation fit between the loading cover and the protrusion. BRIEF 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 internal structural diagram of an embodiment of the present utility model;
[0014] Figure 3 is a schematic structural diagram of the loading cover in an embodiment of the present utility model;
[0015] Figure 4 is a schematic structural diagram of the end cover in an embodiment of the present utility model;
[0016] Figure 5 is a schematic structural diagram of the housing sleeve in an embodiment of the present utility model;
[0017] Wherein: housing sleeve 1; abutting inner wall 11; first flange 12; end cover 2; screwing portion 21; second flange 22; protruding portion 23; arc segment 24; straight segment 25; bearing to be measured 3; through hole 4; loading cover 5; adjusting hole 51. Detailed implementation manner
[0018] An embodiment of a combined tool for determining the preload force of an angular contact bearing according to the present utility model is as Figures 1-5 shown: It includes a housing sleeve 1 and an end cover 2. The housing sleeve 1 can accommodate a pair of bearings to be measured. The housing sleeve 1 includes an abutting inner wall 11 and a first flange 12. The abutting inner wall 11 is used for abutting and cooperating with the outer peripheral wall of the bearing to be measured 3. The bearing to be measured is a pair of angular contact bearings. The first flange 12 is used for abutting and cooperating with one end of the bearing to be measured 3. The end cover 2 includes a screwing portion 21 and a second flange 22. The end cover 2 can form a screwing fit with the outer wall of the housing sleeve 1 through the screwing portion 21. The second flange 22 is used for forming an abutting fit with the other end of the bearing to be measured 3. Through holes 4 for the mandrel to pass through are provided at the positions of the housing sleeve 1 and the end cover 2 corresponding to the first flange 12 and the second flange 22 respectively.
[0019] It further includes a loading cover 5. The loading cover 5 is detachably arranged on the end cover 2, and there is an anti-rotation fit between the loading cover 5 and the end cover 2. An adjusting hole 51 is provided in the middle of the loading cover 5, and the adjusting hole 51 is polygonally arranged.
[0020] A protruding portion 23 is provided on the end cover 2, and the loading cover is sleeved at the protruding portion 23.
[0021] A number of arc segments 24 and a number of straight segments 25 are provided on the protruding portion 23. The arc segments 24 and the straight segments 25 are arranged alternately. The loading cover is sleeved at the positions of the protruding portion corresponding to the number of arc segments and the number of straight segments.
[0022] The above examples are only one of the preferred specific examples of the present utility model. The common 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 combined tooling for setting preload force of angular contact bearings, characterized in that: It includes a housing sleeve and an end cover. The housing sleeve is for receiving a pair of bearings to be measured. The housing sleeve includes an abutting inner wall and a first flange. The abutting inner wall is for abutting and cooperating with the outer peripheral wall of the bearing to be measured, and the first flange is for abutting and cooperating with one end of the bearing to be measured. The end cover includes a screwing portion and a second flange. The end cover can form a screwing fit with the outer wall of the housing sleeve through the screwing portion. The second flange is for forming an abutting fit with the other end of the bearing to be measured. Through holes for a mandrel to pass through are provided at positions corresponding to the first flange and the second flange on the housing sleeve and the end cover respectively.
2. The angular contact bearing fixed preload combination tooling according to claim 1, wherein: It includes a loading cover. The loading cover is detachably provided on the end cover, and there is an anti-rotation fit between the loading cover and the end cover. An adjustment hole is provided in the middle of the loading cover, and the adjustment hole is polygonally arranged.
3. The angular contact bearing fixed preload combination tooling according to claim 2, characterized in that: A protruding portion is provided on the end cover, and the loading cover is sleeved on the protruding portion.
4. The angular contact bearing fixed preload force combination tooling according to claim 3, characterized in that: A number of arc segments and a number of straight segments are provided on the protruding portion, and the arc segments and the straight segments are alternately arranged. The loading cover is sleeved at positions corresponding to the number of arc segments and the number of straight segments on the protruding portion.