Special high-speed and high-load combined bearing
By employing angular contact ball bearings coaxially embedded with the inner ring, elastic element connection, and annular groove structure design in the bearing, the load and temperature rise problems of bearings under high speed and high load are solved, achieving efficient and reliable bearing performance.
Patent Information
- Application Number
- CN202520687594.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-04-11
AI Technical Summary
Existing bearings struggle to cope with higher loads and temperature rises when speeds and feed rates are increased, resulting in demanding configuration and design requirements and insufficient reliability under high-speed, high-load conditions.
The inner and outer rings are coaxially mounted with angular contact ball bearings and connected by elastic elements. The design features an annular groove structure to enhance structural stability and preload. The steel ball assembly of the inner and outer housing components reduces wear and temperature rise, while the thrust ball assembly participates in axial force support.
Maintaining constant preload under high speed and high load reduces wear and temperature rise, improves bearing reliability and axial load capacity, and meets the demands of industrial automation for high efficiency and cost reduction.
Smart Images
Figure CN223754468U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a bearing, more specifically to a high-speed high-load special combined bearing. BACKGROUND
[0002] At present, the degree of industrial automation is gradually improved, and higher requirements are put forward in various fields for high efficiency and cost reduction. For machine tools or other machining machines, the two most direct methods to improve efficiency are to increase the speed and increase the feed amount. However, these two methods are in a contradictory relationship to some extent, and increasing the speed and the feed amount will generate more load and temperature rise, which requires high configuration and design of the bearing. SUMMARY
[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a high-speed high-load special combined bearing suitable for high-speed spindles.
[0004] A high-speed high-load special combined bearing, comprising an outer ring, a rolling body and an inner ring, and an angular contact ball bearing, the rolling body being rollably arranged between the inner ring and the outer ring. The angular contact ball bearing is coaxially embedded in the inner ring, and the inner side of one end of the outer ring is provided with an abutting ring, and the end of the inner ring and the abutting ring are provided with an elastic element.
[0005] As a further improvement of the utility model, the elastic element is a spring, and the two ends of the spring are respectively connected with the end face of the abutting ring and the end face of the inner ring.
[0006] As a further improvement of the utility model, the abutting ring is provided with an outer ring embedding groove at one end facing the elastic element, and the inner ring is provided with an inner ring embedding groove at one end facing the elastic element, and the two ends of the elastic element are respectively embedded into the outer ring embedding groove and the inner ring embedding groove.
[0007] As a further improvement of the utility model, the abutting ring is integrally provided with the outer ring, the end face is communicated with the raceway of the outer ring, and the end of the abutting ring facing the elastic element is arched to form a step at the center hole, and the inner ring is embedded in the ring groove structure.
[0008] As a further improvement of the utility model, the inner ring comprises a ring body and a gland, the outer side wall of the ring body forms a raceway, and the one end face of the gland is provided with an annular clamping edge, and the annular clamping edge is embedded in the inner ring wall of the ring body.
[0009] The utility model has the beneficial effects that,
[0010] 1. The initial design preload of the matched angular contact for assembly can be kept constant at different speeds and axial forces, which ensures the initial setting preload and stiffness requirement of the angular contact bearing, and ensures the controllable preload of the bearing in the working state;
[0011] 2. The steel ball assembly between the inner and outer shell parts can reduce the adverse effects of installation inclination, sliding wear and temperature rise expansion caused by the gap fit between the bearing outer ring and the shell, better guarantee the internal working state of the bearing, and make the bearing have higher reliability;
[0012] 3. The thrust ball assembly can participate in support when the axial force is too large, bear more additional axial force, and the internal pre-tightening force of the assembled bearing can still remain basically unchanged at this time, thereby meeting the higher axial load capacity of the bearing under the guarantee of pre-tightening stiffness and high speed;
[0013] 4. For other assembly requirements, the assembled bearing can be selected in a three-in-one assembly, a four-in-one assembly, etc.;
[0014] For the requirement of axial load capacity, the thrust ball bearing can be replaced with a thrust roller bearing to meet higher axial load capacity BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a whole structure diagram of the high-speed high-load special combined bearing of the utility model.
[0016] Figure 2 It is a combined structure diagram of the inner ring, the outer ring and the rolling body. Figure 1 DETAILED DESCRIPTION
[0017] The utility model will be further described in combination with the embodiments given in the drawings.
[0018] Referring to Figures 1 to 2 , the high-speed high-load special combined bearing of the embodiment includes an outer ring 1, a rolling body 2, an inner ring 3 and an angular contact ball bearing, and the rolling body 2 is rollably arranged between the inner ring 3 and the outer ring 1. The angular contact ball bearing is coaxially embedded in the inner ring 3, the inner side of one end of the outer ring 1 is provided with an abutting ring 4, and the end of the inner ring 3 is provided with an elastic element 5 between the abutting ring 4. This design can better adapt to the high-speed high-load working condition through the coaxial embedding of the angular contact ball bearing and the inner ring 3 and the setting of the elastic element 5, and solves the problem that the bearing needs to bear more load and temperature rise when the speed and feed amount are increased in the background technology.
[0019] Further, the elastic element 5 is a spring, and the two ends of the spring are respectively connected with the end face of the abutting ring 4 and the end face of the inner ring 3. The spring as the elastic element 5 can provide stable elastic force, which helps to relieve the impact and vibration of the bearing during operation, further meets the high-speed high-load demand, and is a standard metal part, which can effectively reduce the manufacturing cost of the bearing.
[0020] Referring to Figure 1 , Figure 2 As shown, the abutment ring 4 is provided with an outer ring embedding groove 41 at one end facing the elastic member 5, the inner ring 3 is provided with an inner ring embedding groove 31 at one end facing the elastic member 5, and the two ends of the elastic member 5 are embedded into the outer ring embedding groove 41 and the inner ring embedding groove 31 respectively. Such a structure design makes the installation of the elastic member 5 more stable, ensures that it is not easy to shift during the working process, and thus more reliably plays a role.
[0021] Further, the abutment ring 4 is integrally arranged with the outer ring 1, the end face is communicated with the raceway of the outer ring 1, and the end of the abutment ring 4 facing the elastic member 5 is arched inward to form a step at the center hole, forming a ring groove structure for embedding the inner ring 3. The integral arrangement enhances the structural strength, the ring groove structure facilitates the embedding installation of the inner ring 3, and improves the stability of the overall structure to cope with the working conditions under high speed and high load.
[0022] Further, the inner ring 3 includes a ring body 32 and a gland 33, the outer side wall of the ring body 32 forms a raceway, and the gland 33 is provided with a ring-shaped clamping edge 331 on one end face, which is embedded on the inner ring wall of the ring body 32. Such a split design facilitates the manufacture and installation of the inner ring 3, and the embedding mode of the ring-shaped clamping edge 331 ensures the stability of the connection between the gland 33 and the ring body 32.
[0023] In summary, the high-speed and high-load special combined bearing effectively solves the problem of more load and temperature rise of the bearing when the speed and feed amount are increased in the background technology through the coaxial embedding of the angular contact ball bearing and the inner ring 3, the arrangement of the elastic member 5, the embedding of the two ends of the elastic member 5 into the outer ring embedding groove 41 and the inner ring embedding groove 31, the integral arrangement of the abutment ring 4 and the outer ring 1 and the ring groove structure, and the split design of the inner ring 3, meets the needs of industrial automation for high efficiency and cost reduction, and has advancement in improving the ability of the bearing to adapt to high-speed and high-load working conditions.
[0024] The above only describes preferred embodiments of the present application, and the protection scope of the present application is not limited to the above embodiments. Any technical solutions falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principles of the present application shall also be considered as the protection scope of the present application.
Claims
1. A high speed high load special combined bearing comprising an outer ring (1), rolling elements (2) and an inner ring (3) and angular contact ball bearings, said rolling elements (2) being rollably disposed between the inner ring (3) and the outer ring (1), characterized in that: The angular contact ball bearing is coaxially embedded in the inner ring (3), the inner side of one end of the outer ring (1) is provided with an abutting ring (4), and the end of the inner ring (3) and the abutting ring (4) are provided with an elastic element (5).
2. The high speed high load special purpose combination bearing of claim 1, wherein: The elastic element (5) is a spring, and the two ends of the spring are connected with the end face of the abutting ring (4) and the end face of the inner ring (3).
3. The high speed high load special purpose combination bearing of claim 2, wherein: The abutting ring (4) is provided with an outer ring embedding groove (41) at one end facing the elastic element (5), the inner ring (3) is provided with an inner ring embedding groove (31) at one end facing the elastic element (5), and the two ends of the elastic element (5) are embedded in the outer ring embedding groove (41) and the inner ring embedding groove (31) respectively.
4. The high speed high load special purpose combination bearing of claim 1 or 2 or 3, wherein: The abutting ring (4) is integrally arranged with the outer ring (1), the end face is communicated with the raceway of the outer ring (1), and the end of the abutting ring (4) facing the elastic element (5) is arched to form a step at the center hole, so that the inner ring (3) is embedded.
5. The high speed high load special purpose combination bearing of claim 1 or 2 or 3, wherein: The inner ring (3) comprises a ring body (32) and a gland (33), the outer side wall of the ring body (32) forms a raceway, and the one end face of the gland (33) is provided with an annular clamping edge (331), and the annular clamping edge (331) is embedded on the inner ring wall of the ring body (32).