Combined bearing gland structure
The vibration damping and adjustment mechanism of the combined bearing cover structure solves the deformation problem of the bearing cover under high load and vibration conditions, improves the vibration resistance and stabilizes the positioning of the components, and ensures the stable operation of the bearing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINHU RUIJIE MACHINERY CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-05
AI Technical Summary
Existing bearing caps are prone to deformation under high load and vibration conditions, leading to failure of axial positioning of the bearing, changes in the fit clearance, and causing abnormal noise and wear.
It adopts a combined bearing cover structure, including an inner wall-mounted shock absorption mechanism and a bottom adjustment mechanism. The shock absorption mechanism absorbs vibration energy through a fixed ring, a damping rod, and a spring, while the adjustment mechanism achieves precise fixing and positioning through a handle and crank transmission.
It improves the vibration resistance of the bearing cap, prevents component loosening and wear, ensures the stability and accuracy of the bearing, and extends the service life of the equipment.
Smart Images

Figure CN224326581U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing cap technology, and in particular to a combined bearing cap structure. Background Technology
[0002] Bearing glands are key components in mechanical transmission systems used to fix bearings, seal cavities, control axial positioning, and protect internal parts. Their structural design and performance directly affect the operating accuracy and reliability of the equipment.
[0003] Bearing glands are typically ring-shaped or disc-shaped structures, and are mostly made of cast iron, aluminum alloy, and steel plate. They are connected to the bearing housing and equipment casing by bolts and include sealing rings and labyrinth rings, which are installed on the inside and edges of the gland to isolate external impurities and prevent lubrication leakage.
[0004] In existing technologies, bearing caps restrict the axial movement of bearings, ensuring the positional accuracy of the shaft system during rotation, preventing dust, moisture, and metal debris from entering the bearing cavity, and preventing lubricating oil leakage to avoid bearing dry-grinding failure. Some caps need to withstand radial and axial additional loads and must have sufficient strength and rigidity. Heat dissipation fins and oil circuit design assist in bearing cooling, and the oil injection hole structure facilitates online lubrication and maintenance. However, traditional felt ring and ring seal structures are prone to aging and wear under high-speed and high-temperature environments. Currently, a composite design of labyrinth seal and skeleton oil seal is adopted to take into account both dust prevention and leakage prevention. However, it is prone to deformation under high load and vibration conditions, leading to bearing axial positioning failure, changes in fit clearance, and causing abnormal noise and wear. Summary of the Invention
[0005] To overcome the above deficiencies, this utility model provides a combined bearing cap structure, which aims to improve the problem in the prior art that the bearing is prone to deformation under high load and vibration conditions, leading to failure of axial positioning, changes in fit clearance, abnormal noise and wear.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a combined bearing cap structure, comprising a cap body, wherein a shock-absorbing mechanism is installed on the inner wall of the cap body to improve the structural sealing performance, and an adjustment mechanism is installed at the bottom end of the cap body to improve the connection strength of the structure; the shock-absorbing mechanism includes a fixing ring, which is fixedly connected to the inner wall of the cap body, and multiple protrusions are fixedly connected at equal intervals on the upper and lower ends of the outer wall of the fixing ring, and multiple mounting grooves are equally spaced on the top wall of the fixing ring, and mounting components are installed on both the upper and lower ends of the fixing ring.
[0007] As a further description of the above technical solution:
[0008] The mounting assembly includes a mounting ring, which is mounted on the upper and lower ends of a fixed ring. The outer wall of the mounting ring is provided with multiple sliding grooves at equal intervals, and the sliding grooves are slidably connected to the outer wall of the protrusion.
[0009] As a further description of the above technical solution:
[0010] A damping rod is installed on the inner wall of the mounting groove, and a spring is installed on the outer wall of the damping rod.
[0011] As a further description of the above technical solution:
[0012] The adjustment mechanism includes a fixing block, which is fixedly connected to the bottom of the cover, and a fixing plate is fixedly connected to the bottom of the fixing block.
[0013] As a further description of the above technical solution:
[0014] The outer wall of the fixed block is rotatably connected to a turntable, the turntable is slidably connected to the top wall of the fixed block, a handle is fixedly connected to the outer wall of the turntable, and a transmission component is installed at the bottom of the fixed block.
[0015] As a further description of the above technical solution:
[0016] The transmission assembly includes a crank that is rotatably connected to the bottom wall of the turntable at equal intervals. A mounting plate is rotatably connected to the end of the crank, and the other end of the mounting plate is rotatably connected to the bottom wall of the fixed plate.
[0017] As a further description of the above technical solution:
[0018] A sealing ring is installed at the top of the cover, and an outer ring is installed on the inner wall of the fixing ring.
[0019] As a further description of the above technical solution:
[0020] An inner ring is provided on the inner side of the outer ring, and a ball bearing is rotatably connected to the inner side of the outer ring and the inner ring.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, a fixing ring is installed on the inner wall of the cover, and a damping rod is installed in the mounting groove on the top wall of the fixing ring. Then, two mounting rings are placed on the upper and lower ends of the fixing ring respectively. The sliding groove on the outer wall of the mounting ring is aligned with the protrusion on the outer wall of the fixing ring and slid, closely adhering to the outer wall of the fixing ring. When the cover is vibrated, the mounting ring compresses the damping rod, and the damping rod compresses the spring. When the spring is vibrated, it undergoes elastic deformation, absorbing and buffering vibration energy, further improving the vibration resistance of the cover and preventing parts from loosening, wearing, or even being damaged due to long-term vibration.
[0023] 2. In this utility model, the handle is turned so that the turntable rotates on the outer wall of the fixed block. When the turntable rotates, it drives the crank at its bottom to rotate. Then the crank drives the mounting plate, so that the other side of the mounting plate rotates on the bottom wall of the fixed plate. This can fix the parts connected to the cover and can also precisely control the moving distance and clamping force of the mounting plate to fix and position the parts. Attached Figure Description
[0024] Figure 1 This is a perspective view of a combined bearing cap structure proposed in this utility model;
[0025] Figure 2 This is a front view of a combined bearing cap structure proposed in this utility model;
[0026] Figure 3 This is a schematic diagram of the internal structure of a combined bearing cap structure proposed in this utility model.
[0027] Figure 4 This is a partial structural exploded view of a combined bearing cap structure proposed in this utility model;
[0028] Figure 5 This is a schematic diagram of the adjustment mechanism of a combined bearing cap structure proposed in this utility model.
[0029] Legend:
[0030] 1. Cover; 2. Sealing ring; 3. Shock absorption mechanism; 301. Mounting assembly; 3011. Mounting ring; 3012. Slide groove; 302. Damping rod; 303. Spring; 304. Mounting groove; 305. Fixing ring; 306. Protrusion; 4. Adjustment mechanism; 401. Handle; 402. Turntable; 403. Fixing plate; 404. Fixing block; 405. Transmission assembly; 4051. Crank; 4052. Mounting plate; 5. Outer ring; 6. Inner ring; 7. Ball bearing. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a combined bearing cap structure, including a cap body 1. A shock-absorbing mechanism 3 is installed on the inner wall of the cap body 1 to improve the structural sealing. An adjustment mechanism 4 is installed at the bottom of the cap body 1 to improve the connection strength of the structure. The shock-absorbing mechanism 3 includes a fixing ring 305, which is fixedly connected to the inner wall of the cap body 1. Multiple protrusions 306 are equidistantly fixedly connected to the upper and lower ends of the outer wall of the fixing ring 305. The top wall of the 05 is provided with multiple mounting grooves 304 at equal intervals. The upper and lower ends of the fixing ring 305 are both equipped with mounting components 301. The mounting components 301 include mounting rings 3011, which are installed at the upper and lower ends of the fixing ring 305. The outer wall of the mounting ring 3011 is provided with multiple sliding grooves 3012 at equal intervals. The sliding grooves 3012 are slidably connected to the outer wall of the protrusion 306. The inner wall of the mounting groove 304 is equipped with a damping rod 302, and the outer wall of the damping rod 302 is equipped with a spring 303.
[0033] Specifically, the fixing ring 305 is installed on the inner wall of the cover 1, and the damping rod 302 is installed in the mounting groove 304 on the top wall of the fixing ring 305. Then, two mounting rings 3011 are placed at the upper and lower ends of the fixing ring 305 respectively. The sliding groove 3012 on the outer wall of the mounting ring 3011 is aligned with the protrusion 306 on the outer wall of the fixing ring 305 and slids, closely adhering to the outer wall of the fixing ring 305. When the cover 1 is vibrated, the mounting ring 3011 compresses the damping rod 302. The damping rod 302 compresses the spring 303. When the spring 303 is vibrated, it undergoes elastic deformation, absorbing and buffering vibration energy. This allows the damping rod 302 to adapt to the vibration frequency of the cover 1, further improving the vibration resistance of the cover 1 and preventing components from loosening, wearing, or even being damaged due to long-term vibration.
[0034] Reference Figure 2 , Figure 3 and Figure 5 The adjustment mechanism 4 includes a fixing block 404, which is fixedly connected to the bottom of the cover 1. A fixing disk 403 is fixedly connected to the bottom of the fixing block 404. A turntable 402 is rotatably connected to the outer wall of the fixing block 404. The turntable 402 is slidably connected to the top wall of the fixing disk 403. A handle 401 is fixedly connected to the outer wall of the turntable 402. A transmission assembly 405 is installed at the bottom of the fixing disk 403. The transmission assembly 405 includes a crank 4051, which is equidistantly rotatably connected to the bottom wall of the turntable 402. A mounting plate 4052 is rotatably connected to the end of the crank 4051. The other end of the mounting plate 4052 is rotatably connected to the bottom wall of the fixing disk 403.
[0035] Specifically, by pulling the handle 401, the turntable 402 rotates on the outer wall of the fixed block 404. When the turntable 402 rotates, it drives the crank 4051 at its bottom to rotate. Then, the crank 4051 drives the mounting plate 4052, causing the other side of the mounting plate 4052 to rotate on the bottom wall of the fixed plate 403. This can fix the parts connected to the cover 1 and also precisely control the moving distance and clamping force of the mounting plate 4052 to fix and position the parts.
[0036] Reference Figure 1 , Figure 2 and Figure 3 A sealing ring 2 is installed at the top of the cover 1, an outer ring 5 is installed on the inner wall of the fixing ring 305, an inner ring 6 is provided on the inner side of the outer ring 5, and a ball bearing 7 is rotatably connected between the inner side of the outer ring 5 and the inner side of the inner ring 6.
[0037] Specifically, the cover 1 is precision cast from high-strength alloy steel, and its top is designed with an annular sealing groove in which the sealing ring 2 is tightly embedded. The sealing ring 2 can effectively prevent external dust, moisture and corrosive media from entering the internal cavity, while preventing the leakage of lubricating grease, ensuring that the internal transmission components are always in a good lubrication environment. The outer ring 5 is forged from high-carbon chromium bearing steel, and its outer circular surface is tightly fitted with the inner wall of the fixing ring 305, which plays the role of fixing the bearing position and bearing radial load. The inner ring 6 is also made of high-carbon chromium bearing steel, and the inner hole surface is machined with high precision according to the size of the shaft to achieve a transition fit with the shaft. The main function of the inner ring 6 is to rotate synchronously with the shaft, and to evenly distribute the torque and load transmitted by the shaft to the outer ring 5 through the ball bearing 7, while ensuring the stability and accuracy of the shaft during rotation.
[0038] Working principle: Securely install the fixing ring 305 on the inner wall of the cover 1, ensuring its accurate position. Next, carefully place the damping rod 302 into the mounting groove 304 on the top wall of the fixing ring 305, ensuring a tight fit between the damping rod 302 and the mounting groove 304. Then, place the two mounting rings 3011 at the upper and lower ends of the fixing ring 305 respectively, ensuring symmetrical and stable positions. Next, align the sliding groove 3012 on the outer wall of the mounting ring 3011 with the protrusion 306 on the outer wall of the fixing ring 305, and gently slide it to make the mounting ring 3011 fit tightly against the cover 1. The outer wall of the fixed ring 305 ensures a tight fit between the two. When the cover 1 is subjected to external vibration, the mounting ring 3011 will compress the damping rod 302. While the damping rod 302 is compressed, it further compresses the spring 303. When the spring 303 is subjected to vibration, it will undergo elastic deformation, thereby effectively absorbing and buffering vibration energy. This allows the damping rod 302 to flexibly adapt to different frequencies of vibration of the cover 1, significantly improving the vibration resistance of the cover 1, effectively avoiding loosening, wear or even damage of parts caused by long-term vibration, and extending the service life of the equipment.
[0039] On the other hand, by turning the handle 401, the turntable 402 rotates smoothly on the outer wall of the fixing block 404. During the rotation of the turntable 402, the crank 4051 at its bottom rotates synchronously. The rotation of the crank 4051 is further transmitted to the mounting plate 4052, so that the other side of the mounting plate 4052 rotates smoothly on the bottom wall of the fixing plate 403. This series of actions can not only firmly fix the parts connected to the cover 1, but also precisely control the moving distance and clamping force of the mounting plate 4052, ensuring that the parts are both stable and accurate during the fixing and positioning process, which greatly improves the reliability of installation and the convenience of operation.
[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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.
Claims
1. A combined bearing cap structure, comprising a cap body (1), characterized in that: The inner wall of the cover (1) is equipped with a shock-absorbing mechanism (3), which is used to improve the structural sealing. The bottom end of the cover (1) is equipped with an adjustment mechanism (4), which is used to improve the connection strength of the structure. The shock absorption mechanism (3) includes a fixing ring (305), which is fixedly connected to the inner wall of the cover (1). Multiple protrusions (306) are fixedly connected at equal intervals on the upper and lower ends of the outer wall of the fixing ring (305). Multiple mounting grooves (304) are opened at equal intervals on the top wall of the fixing ring (305). Mounting components (301) are installed on both the upper and lower ends of the fixing ring (305).
2. The combined bearing cap structure according to claim 1, characterized in that: The mounting assembly (301) includes a mounting ring (3011), which is mounted on the upper and lower ends of the fixing ring (305). The outer wall of the mounting ring (3011) is provided with a plurality of sliding grooves (3012) at equal intervals, and the sliding grooves (3012) are slidably connected to the outer wall of the protrusion (306).
3. The combined bearing cap structure according to claim 1, characterized in that: A damping rod (302) is installed on the inner wall of the mounting groove (304), and a spring (303) is installed on the outer wall of the damping rod (302).
4. The combined bearing cap structure according to claim 1, characterized in that: The adjustment mechanism (4) includes a fixing block (404), which is fixedly connected to the bottom end of the cover (1), and a fixing plate (403) is fixedly connected to the bottom of the fixing block (404).
5. The combined bearing cap structure according to claim 4, characterized in that: The outer wall of the fixed block (404) is rotatably connected to a turntable (402), the turntable (402) is slidably connected to the top wall of the fixed disk (403), the outer wall of the turntable (402) is fixedly connected to a handle (401), and a transmission assembly (405) is installed at the bottom of the fixed disk (403).
6. The combined bearing cap structure according to claim 5, characterized in that: The transmission assembly (405) includes a crank (4051) which is equidistantly rotatably connected to the bottom wall of the turntable (402). The end of the crank (4051) is rotatably connected to a mounting plate (4052), and the other end of the mounting plate (4052) is rotatably connected to the bottom wall of the fixed plate (403).
7. The combined bearing cap structure according to claim 1, characterized in that: A sealing ring (2) is installed at the top of the cover (1), and an outer ring (5) is installed on the inner wall of the fixing ring (305).
8. The combined bearing cap structure according to claim 7, characterized in that: An inner ring (6) is provided on the inner side of the outer ring (5), and a bead (7) is rotatably connected to the inner side of the outer ring (5) and the inner ring (6).