A dual-bearing fixed bearing housing
By controlling the addition of lubricating oil through the cooperation of the spiral oil groove and the threaded rod, adjusting the position of the anti-collision support block with the support seat and the screw, and dispersing vibration with the rubber shock-absorbing pad, the problems of unstable fixing, improper lubrication and vibration of traditional bearing seats are solved, thereby improving installation stability and service life.
Patent Information
- Application Number
- CN202521781852.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2035-08-21
Smart Images

Figure CN224283244U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of bearing housing technology, and in particular to a double-bearing fixed bearing housing. Background Technology
[0002] In the field of mechanical transmission, double-bearing fixed bearing housings are a key structure for ensuring the stable operation of transmission components. Traditional double-bearing fixed bearing housings have a single fixing method to the external structure, resulting in insufficient overall installation stability. Under long-term stress, they are prone to loosening, leading to equipment malfunctions. Most traditional devices lack lubrication control structures, making it difficult to control the amount and timing of lubricant addition. This can lead to either insufficient lubrication causing accelerated bearing wear or excessive lubrication resulting in waste and leakage, polluting the working environment, and failing to guarantee long-term smooth bearing operation.
[0003] In addition, traditional bearing housings mostly adopt rigid installation methods and lack effective shock absorption structures. The vibrations generated during equipment operation cannot be effectively absorbed, which can easily lead to resonance. This not only affects the operational stability of the bearing, but also damages the overall structure and increases maintenance costs and frequency.
[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content
[0005] To address the shortcomings of traditional dual-bearing fixed bearing housings, which suffer from limited fixing methods to external structures, insufficient overall installation stability, and susceptibility to loosening under prolonged stress, leading to equipment malfunctions, and the lack of lubrication control structures in most traditional devices, this application provides a dual-bearing fixed bearing housing.
[0006] The technical solution for a dual-bearing fixed bearing housing provided in this application is as follows:
[0007] A double-bearing fixed bearing housing includes a fixed base, with bearing bases connected to both ends of the fixed base. A bearing is installed inside the bearing base. Spiral oil grooves are formed on the outer walls of both sides of the bearing base. A positioning block is fixed to the outer wall of the spiral oil groove. A threaded rod adapted to the spiral oil groove is connected inside the positioning block. A support base is provided at the bottom of the fixed base. A central rod is fixed at the center inside the support base. A rubber shock-absorbing pad is sleeved on the outer wall of the central rod.
[0008] Preferably, the outer wall of the bottom end of the bearing base is integrally welded with a fixing block, and a set of fixing holes are opened inside the fixing block.
[0009] Preferably, the bearing base has a working cavity inside, and the spiral oil groove communicates with the working cavity.
[0010] Preferably, the surface of the support base is provided with a plurality of positioning holes at equal intervals, and a set of screws are distributed at equal intervals on the positioning holes.
[0011] Preferably, the top end of the screw is connected to an anti-collision support block that supports the bearing base, and the anti-collision support block is in contact with the outer wall of the bearing base.
[0012] Preferably, a movable sleeve is connected to the outer wall of the top end of the central rod, and the movable sleeve is fixed to the bottom wall of the fixed seat by screws.
[0013] In summary, this application includes the following beneficial technical effects:
[0014] The combination of the spiral oil groove and the threaded rod in this application not only controls lubrication but also prevents lubricating oil leakage, ensuring continuous lubrication. The combination of the support base and the screw rod allows for flexible adjustment of the position of the anti-collision support block according to the specifications of the bearing base, improving the targeted nature of the protection; the rubber shock-absorbing pad, sleeved on the outside of the central rod, can evenly distribute vibration energy, avoid damage caused by excessive local stress, and further extend the service life of the device. Attached Figure Description
[0015] Figure 1 This is a front view of a dual-bearing fixed bearing housing according to an embodiment of the application.
[0016] Figure 2 This is a schematic diagram of the structure of a dual-bearing fixed bearing housing according to an embodiment of the application.
[0017] Figure 3 This is a schematic diagram of the support base in the application embodiment.
[0018] Explanation of reference numerals in the attached drawings: 1. Fixed seat; 2. Bearing base; 3. Working cavity; 4. Bearing; 5. Support seat; 6. Fixed block; 7. Fixed hole; 8. Positioning block; 9. Spiral oil groove; 10. Threaded rod; 11. Positioning hole; 12. Screw; 13. Anti-collision support block; 14. Center rod; 15. Movable sleeve; 16. Rubber shock-absorbing pad. Detailed Implementation
[0019] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0020] This application discloses a dual-bearing fixed bearing housing. (Refer to...) Figures 1-2The bearing base includes a fixed seat 1, with bearing bases 2 connected to both ends. A fixing block 6 is integrally welded to the outer wall of the bottom end of the bearing base 2, and a set of fixing holes 7 are formed inside the fixing block 6. A bearing 4 is installed inside the bearing base 2. Spiral oil grooves 9 are formed on the outer walls of both bearing bases 2, and positioning blocks 8 are fixed to the outer walls of the spiral oil grooves 9. A threaded rod 10, adapted to the spiral oil groove 9, is connected inside the positioning block 8. A working cavity 3 is formed inside the bearing base 2, and the spiral oil grooves 9 communicate with the working cavity 3. The bearing 4 is placed in the working cavity 3 inside the bearing base 2, forming a stable space for initial positioning and ensuring accurate installation of the double bearings 4. The spiral oil grooves 9 communicate with the working cavity 3, and the threaded rod 10 is adapted to the spiral oil grooves 9. By rotating the threaded rod 10, lubricating oil can be controlled to enter the working cavity 3 along the spiral oil grooves 9, providing targeted lubrication to the bearing 4, effectively reducing frictional loss during operation, ensuring long-term smooth operation of the bearing, and extending its service life.
[0021] Combination Figure 3 As shown, the bottom of the fixed base 1 is provided with a support base 5. Several positioning holes 11 are equidistantly opened on the surface of the support base 5. A set of screws 12 are equidistantly distributed on the positioning holes 11. The top of the screws 12 is connected to an anti-collision support block 13 that supports the bearing base 2. The anti-collision support block 13 is in contact with the outer wall of the bearing base 2. By fixing the support base 5 and the movable sleeve 15 to the external structure and the bottom wall of the fixed base 1 respectively with screws, the overall structural support performance can be significantly enhanced. After the screws 12 are installed in the positioning holes 11, the anti-collision support blocks 13 are in contact with the outer walls of both ends of the bearing base 2, providing good buffering and anti-collision effects, effectively preventing the bearing base 2 from shifting or being damaged due to external impact, and providing a safety guarantee for the operation of the bearing 4.
[0022] In this application, a central rod 14 is fixed at the center of the support base 5. A rubber shock-absorbing pad 16 is fitted on the outer wall of the central rod 14. A movable sleeve 15 is connected to the outer wall of the top of the central rod 14. The movable sleeve 15 is fixed to the bottom wall of the fixed base 1 by screws. The rubber shock-absorbing pad 16 can effectively absorb the vibration energy generated during the operation of the device, avoid the resonance problem caused by traditional rigid installation, greatly reduce the impact of vibration on the bearing 4 and the overall structure, and ensure the stability of the bearing 4 during operation.
[0023] The implementation principle of a dual-bearing fixed bearing housing according to an embodiment of this application is as follows:
[0024] In use, bearing 4 is placed in the working cavity 3 inside bearing base 2, forming a space for accommodating and initially positioning the two bearings. The fixing block 6, through its internal fixing holes 7 and fasteners, secures the bearing base 2 to the external structure, enhancing the overall installation stability. The spiral oil grooves 9 on the outer walls of the bearing bases 2 on both sides communicate with the working cavity 3. The threaded rod 10 inside the positioning block 8 is adapted to the spiral oil grooves 9. By rotating the threaded rod 10, lubricating oil can be controlled to enter the working cavity 3 along the spiral oil grooves 9 to lubricate the bearing 4, reducing frictional loss during bearing 4 operation and ensuring smooth operation.
[0025] The support base 5 and movable sleeve 15 are fixed to the external structure and the bottom wall of the fixed base 1 respectively by screws, further enhancing the overall structural support performance. Then, screws 12 are installed in the positioning holes 11. Anti-collision support blocks 13 are attached to the outer walls of both ends of the bearing base 2, providing buffering and anti-collision effects to prevent displacement or damage to the bearing base 2 due to external impact. The rubber shock-absorbing pads 16 effectively absorb the vibration energy generated during device operation, avoiding resonance problems caused by traditional rigid installation and reducing the impact of vibration on the bearing 4 and the overall structure.
[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0027] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A double-bearing fixed bearing housing, comprising a fixed housing (1), characterized in that: Both ends of the fixed seat (1) are connected to bearing bases (2). The bearing bases (2) are equipped with bearings (4) inside. The outer walls of the bearing bases (2) on both sides are provided with spiral oil grooves (9). The outer walls of the spiral oil grooves (9) are fixed with positioning blocks (8). The positioning blocks (8) are connected with threaded rods (10) that are compatible with the spiral oil grooves (9). The bottom of the fixed seat (1) is provided with a support seat (5). The center of the support seat (5) is fixed with a central rod (14). The outer wall of the central rod (14) is fitted with a rubber shock-absorbing pad (16).
2. The double-bearing fixed bearing housing according to claim 1, characterized in that: The bearing base (2) has a fixed block (6) welded to the outer wall of the bottom end in an integral structure, and a set of fixing holes (7) are opened inside the fixed block (6).
3. A double-bearing fixed bearing housing according to claim 1, characterized in that: The bearing base (2) has a working cavity (3) inside, and the spiral oil groove (9) is connected to the working cavity (3).
4. A double-bearing fixed bearing housing according to claim 1, characterized in that: The surface of the support base (5) is provided with a number of positioning holes (11) at equal intervals, and a set of screws (12) are distributed at equal intervals on the positioning holes (11).
5. A double-bearing fixed bearing housing according to claim 4, characterized in that: The top end of the screw (12) is connected to an anti-collision support block (13) that supports the bearing base (2), and the anti-collision support block (13) is in contact with the outer wall of the bearing base (2).
6. A double-bearing fixed bearing housing according to claim 1, characterized in that: The outer wall of the top of the central rod (14) is connected to a movable sleeve (15), and the movable sleeve (15) is fixed to the bottom wall of the fixed seat (1) by screws.
