Floating pressure head for pressing outer ring of conical bearing
By designing a floating pressure head for the outer ring of the tapered bearing, the structure of the primary and secondary pressure head, combined with the deformation of the elastic plunger and the O-ring, the problem of moderate deviation between the outer ring of the tapered bearing and the shell hole is solved, and the correct pressing and reducing early wear of the bearing is achieved.
Patent Information
- Application Number
- CN202421609424.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-09
AI Technical Summary
During the pressing process of the outer ring of the tapered bearing, a moderate deviation between the outer ring and the housing hole often occurs, resulting in inadequate pressure installation and difficult to make effective adjustments when space is limited.
A floating pressure head is designed, including a first-stage pressure head and a second-stage pressure head. The tapered surface of the first-stage pressure head is matched with the outer ring of the tapered bearing, and the deformation of the elastic plunger and the O-ring is used to adjust the alignment between the tapered bearing and the part hole to ensure a good cooperation between the outer ring and the inner ring of the bearing.
It effectively solves the problem of moderate deviation between the outer ring of the tapered bearing and the shell hole, ensures correct pressing of the bearing, reduces early wear, and is suitable for flexible pressing with space-constrained.
Smart Images
Figure CN222767695U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of floating pressure heads, in particular to a floating pressure head used for press-fitting the outer ring of a tapered bearing. Background Art
[0002] The press-fitting of the outer rings of bearings in the industrial field includes the press-fitting of the outer rings of tapered bearings, such as press-fitting the outer rings of tapered bearings into the housing. When press-fitting the outer rings of tapered bearings, it is necessary to adjust the alignment between the outer ring and the housing hole to facilitate the press-fitting of the outer ring into place. However, the alignment between the outer ring and the housing hole adjusted during press-fitting will have a slight alignment deviation, or in some cases, due to the limitations of the workpiece space, the use of flexible press-fitting and other conditions, conventional press-fitting will result in poor part alignment and inadequate press-fitting. A floating press head for press-fitting the outer rings of tapered bearings is needed to solve the above problems. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a floating pressure head for press-fitting the outer ring of a tapered bearing. The technical solution adopted by the utility model is as follows:
[0004] A floating pressure head for press-fitting the outer ring of a tapered bearing, comprising a primary pressure head and a secondary pressure head; the primary pressure head is provided with a conical surface consistent with the taper of the outer ring of the tapered bearing, a plurality of threaded through holes are radially evenly distributed on the lower end surface of the primary pressure head, and an elastic plunger is installed in the threaded through hole; an installation groove is opened on the outer periphery of the secondary pressure head, and an O-ring is sleeved in the installation groove; an inner hole is provided at the upper end of the primary pressure head, and a guide column is provided at the lower end, and the lower end of the secondary pressure head is located in the inner hole of the primary pressure head; a concave gasket, a plurality of steel balls and a flat gasket are arranged in sequence between the secondary pressure head and the primary pressure head; through holes are provided on the secondary pressure head and the primary pressure head, and the secondary pressure head and the primary pressure head are connected together by a pin inserted in the through hole, and the pin is fixed by a screw.
[0005] When the utility model is used, the end of the secondary pressure head is fixed on the equipment, and the alignment between the floating pressure head and the part hole is adjusted for the first time; the outer ring of the tapered bearing is installed on the primary pressure head, the conical surface of the primary pressure head is closely matched with the outer circle of the tapered bearing, and the elastic plunger clamps the lower end surface of the outer ring of the tapered bearing, and the press-fitting begins; the outer ring of the tapered bearing enters the part hole, if the alignment adjusted for the first time will cause a slight alignment deviation between the two, the outer ring of the tapered bearing is adjusted together with the primary pressure head for misalignment, at this time, the O-ring is deformed under pressure, and the deformation of the O-ring can adjust the alignment difference; it can effectively ensure the alignment of the tapered bearing with the part hole during the pressing process, ensure the good matching of the outer ring of the bearing with the inner ring of the bearing, and reduce the early wear of the bearing caused by the unreasonable installation of the outer ring of the bearing. After the outer ring of the tapered bearing is pressed into place, the floating pressure head rises, the O-ring returns to its original state, and the primary pressure head and the secondary pressure head return to their original state.
[0006] Furthermore, the surfaces of the concave gasket and the flat gasket are smooth surfaces.
[0007] The beneficial effect of adopting the above further technical solution is that the smooth surfaces of the concave gasket and the flat gasket can reduce the friction resistance of the steel ball and are also convenient for replacement due to wear.
[0008] Furthermore, the elastic plunger is provided with a plunger steel ball.
[0009] Furthermore, the secondary pressure head is provided with a plurality of installation grooves, and each installation groove is sleeved with an O-ring.
[0010] Furthermore, the installation groove is a rectangular groove.
[0011] Furthermore, the concave gasket is sleeved on the secondary pressure head, and there is a gap between the concave gasket and the inner hole of the primary pressure head, and the single-side gap is smaller than the radius of the steel ball.
[0012] Furthermore, the flat gasket is installed in the inner hole of the first-stage pressure head, and there is a gap between the flat gasket and the inner hole to facilitate replacement.
[0013] Furthermore, the first-level pressure head is provided with a threaded hole perpendicular to the through hole, and the screw fixes the latch through the threaded hole.
[0014] Furthermore, the conical surface of the first-stage pressure head is a smooth conical surface.
[0015] The utility model provides a floating pressure head for press-fitting the outer ring of a tapered bearing. The utility model has a simple structure and is suitable for the flexible press-fitting of the outer ring of a tapered bearing with limited space. The centering difference between the tapered bearing and the part hole can be adjusted by the pressure deformation of the O-ring, thereby effectively ensuring the centering of the tapered bearing during the press-fitting process, ensuring the good fit between the outer ring of the bearing and the inner ring of the bearing, and reducing the early wear of the bearing caused by the unreasonable installation of the outer ring of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of a floating pressure head used for press-fitting the outer ring of a tapered bearing according to the utility model;
[0017] Figure 2 It is a schematic diagram of the combination of the floating pressure head and the tapered bearing outer ring used for press-fitting the tapered bearing outer ring of the utility model;
[0018] Figure 3 It is a schematic diagram of the radial uniform distribution of threaded through holes on the lower end face of the first-stage pressure head in the embodiment of the utility model.
[0019] Description of the markings in the figure:
[0020] 1. Secondary pressure head; 2. O-ring; 3. Screw; 4. Latch; 5. Concave gasket; 6. Steel ball; 7. Flat gasket; 8. Primary pressure head; 9. Elastic plunger; 10. Plunger steel ball; 11. Guide column; 12. Tapered bearing outer ring; 13. Threaded through hole. DETAILED DESCRIPTION
[0021] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.
[0022] Example:
[0023] like Figure 1-Figure 2 As shown, a floating pressure head for press-fitting the outer ring of a tapered bearing comprises a primary pressure head 8 and a secondary pressure head 1; the primary pressure head 8 is provided with a conical surface having the same taper as the outer ring 12 of the tapered bearing, and is smooth and free of bumps. The lower end surface of the primary pressure head 8 is radially evenly distributed with a plurality of threaded through holes, and six threaded through holes are provided in this embodiment, and elastic plungers 9 are installed in the threaded through holes, and the elastic plungers 9 are provided with plunger steel balls 10, and the plunger steel balls 10 are exposed in the threaded through holes; the outer periphery of the secondary pressure head 1 is provided with a mounting groove, and the mounting groove in this embodiment is a rectangular groove, and two mounting grooves are provided, and an O-ring 2 is sleeved in each mounting groove; the upper end of the primary pressure head 8 is provided with an inner hole, and the lower end is provided with a guide column 11, and the lower end of the secondary pressure head 1 is located in the inner hole of the primary pressure head. A concave gasket 5, a plurality of steel balls 6 and a flat gasket 7 are arranged in sequence between the secondary pressure head 1 and the primary pressure head 8. The concave gasket 5 is sleeved on the secondary pressure head 1. There is a gap between the concave gasket 5 and the inner hole of the secondary pressure head 1. The single-side gap is smaller than the radius of the steel ball 6. The flat gasket 7 is installed in the inner hole of the secondary pressure head 1. There is a gap between the two. The steel ball 6 between the concave gasket 5 and the flat gasket 7 can rotate flexibly. The smooth surfaces of the concave gasket 5 and the flat gasket 7 can reduce the friction resistance of the steel ball 6 and are also convenient for replacement due to wear. Through holes are arranged on the secondary pressure head 1 and the primary pressure head 8. The secondary pressure head 1 and the primary pressure head 8 are connected together by a pin 4 inserted in the through hole. A threaded hole perpendicular to the through hole is arranged on the primary pressure head 8. The screw 3 fixes the pin 4 through the threaded hole.
[0024] When the utility model is used, the end of the secondary pressure head 1 is fixed on the equipment, and the alignment between the floating pressure head and the part hole is adjusted for the first time; the outer ring 12 of the tapered bearing is installed on the primary pressure head 8, the conical surface of the primary pressure head 8 is tightly matched with the outer circle of the tapered bearing, the plunger steel ball 10 on the elastic plunger 9 clamps the lower end surface of the outer ring 12 of the tapered bearing, and the press-fitting begins; the outer ring 12 of the tapered bearing enters the part hole, if the alignment adjusted for the first time will cause a slight alignment deviation between the two, the outer ring 12 of the tapered bearing is adjusted together with the primary pressure head 8 for misalignment, at this time, the O-ring 2 is deformed by pressure, and the deformation amount of the O-ring 2 can be used to adjust the alignment difference; the alignment of the tapered bearing with the part hole during the pressing process can be effectively guaranteed, the good matching of the outer ring of the bearing and the inner ring of the bearing can be guaranteed, and the early wear of the bearing caused by the unreasonable installation of the outer ring of the bearing can be reduced. After the tapered bearing outer ring 12 is pressed into place, the floating pressure head rises, the O-ring 2 returns to its original state, and the primary pressure head 8 and the secondary pressure head 1 return to their original states.
[0025] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.
Claims
1. A floating pressure head for press-fitting the outer ring of a tapered bearing, characterized in that: It comprises a primary pressure head and a secondary pressure head; the primary pressure head is provided with a conical surface which is consistent with the taper of the outer ring of the tapered bearing, a plurality of threaded through holes are evenly distributed radially on the lower end surface of the primary pressure head, and an elastic plunger is installed in the threaded through hole; a mounting groove is provided on the outer periphery of the secondary pressure head, and an O-ring is sleeved in the mounting groove; an inner hole is provided at the upper end of the primary pressure head, and a guide column is provided at the lower end, and the lower end of the secondary pressure head is located in the inner hole; a concave gasket, a plurality of steel balls and a flat gasket are provided in sequence between the secondary pressure head and the primary pressure head; a through hole is provided on the secondary pressure head and the primary pressure head, and the secondary pressure head and the primary pressure head are connected together by a pin inserted in the through hole, and the pin is fixed by a screw.
2. The floating pressure head for press-fitting the outer ring of a tapered bearing according to claim 1, characterized in that: The surfaces of the concave gasket and the flat gasket are smooth surfaces.
3. The floating pressure head for press-fitting the outer ring of a tapered bearing according to claim 1, characterized in that: The elastic plunger is provided with a plunger steel ball.
4. The floating pressure head for press-fitting the outer ring of a tapered bearing according to claim 1, characterized in that: The secondary pressure head is provided with a plurality of installation grooves, and each installation groove is sleeved with an O-ring.
5. The floating pressure head for press-fitting the outer ring of a tapered bearing according to claim 1, characterized in that: The installation groove is a rectangular groove.
6. The floating pressure head for press-fitting the outer ring of a tapered bearing according to claim 1, characterized in that: The concave gasket is sleeved on the secondary pressure head, and there is a gap between the concave gasket and the inner hole, and the single-side gap is smaller than the radius of the steel ball.
7. The floating pressure head for press-fitting the outer ring of a tapered bearing according to claim 1, characterized in that: There is a gap between the flat gasket and the inner hole.
8. The floating pressure head for press-fitting the outer ring of a tapered bearing according to claim 1, characterized in that: The first-level pressure head is provided with a threaded hole perpendicular to the through hole, and the screw fixes the latch through the threaded hole.
9. The floating pressure head for press-fitting the outer ring of a tapered bearing according to claim 1, characterized in that: The conical surface of the first-stage pressure head is a smooth conical surface.