A center shaft structure for a bearing block

Abstract

This utility model discloses a central shaft structure for a bearing housing, including a bearing housing, a bearing assembly installed inside the bearing housing, a central shaft body installed inside the bearing assembly, a lubrication nozzle installed on the outer wall of the bearing housing, a lubrication device installed inside the lubrication nozzle, and a fitting device fixedly connected to the lubrication device. The lubrication device includes a connecting frame, an oil reservoir installed inside the connecting frame, a piston slidably connected inside the oil reservoir, an oil injection nozzle installed at the lower end of the oil reservoir, the oil injection nozzle being installed inside the lubrication nozzle, a horizontal plate installed above the connecting frame, a remote motor installed inside the horizontal plate, a first gear installed at the output end of the remote motor, a second gear meshing inside the first gear, a threaded rod installed inside the second gear, and a threaded connection between the threaded rod and the second gear. This utility model, through remote control, eliminates the need for multiple close-range manual operations during the entire oiling process, effectively avoiding the problems of frequent manual oiling and cumbersome operation in traditional technologies, and improving the convenience and stability of oiling.

Description

Technical Field

[0001] This invention relates to the field of bearing housing technology, specifically to a central shaft structure for bearing housings. Background Technology

[0002] Existing bearing housing structures require lubrication of the bearing interior during long-term operation to reduce friction and resistance and improve operational stability. However, in traditional structures, lubricating oil is usually replenished manually, which not only requires frequent operation but also often necessitates manual intervention near the equipment for multiple additions. This process is cumbersome and inefficient. Furthermore, manual lubrication makes it difficult to ensure the stability of the injection volume, easily leading to insufficient or excessive lubrication. In addition, when lubricating the bearing housing, the lubrication device usually needs to be held or supported by the operator. If a stable supporting structure is lacking, shaking can easily occur during the lubrication process, affecting the lubrication effect and potentially causing misalignment or leakage of the lubrication port. Utility Model Content

[0003] Therefore, this utility model provides a central shaft structure for bearing housings to solve the problem that in the prior art, lubricating oil is generally replenished by manual injection, which not only requires frequent operation, but also often requires manual approach to the equipment for multiple injections, which is cumbersome and inefficient.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A central shaft structure for a bearing housing includes a bearing housing, a bearing assembly installed inside the bearing housing, a central shaft body installed inside the bearing assembly, a lubrication nozzle installed on the outer wall of the bearing housing, a lubrication device installed inside the lubrication nozzle, and a fitting device fixedly connected to the lubrication device. The lubrication device includes a connecting frame, an oil reservoir installed inside the connecting frame, a piston slidably connected inside the oil reservoir, an oil injection nozzle installed at the lower end of the oil reservoir, the oil injection nozzle being installed inside a lubrication nozzle, a horizontal plate installed above the connecting frame, a remote motor installed inside the horizontal plate, a first gear installed at the output end of the remote motor, a second gear meshing inside the first gear, a threaded rod installed inside the second gear, the threaded rod and the second gear forming a threaded connection, and a mounting plate installed at the lower end of the threaded rod via a bearing, the mounting plate being fixedly connected to the upper end of the piston.

[0005] Furthermore: the second gear is engaged within the connecting frame, and a movable connection is formed between the second gear and the connecting frame.

[0006] Furthermore: the oil injection nozzle has an external thread, the lubrication nozzle has an internal thread, and the oil injection nozzle and the lubrication nozzle form a threaded connection.

[0007] Furthermore: the bonding device includes two vertical rods, which are symmetrically installed below the connecting frame, and a connecting rod is installed below the vertical rods.

[0008] Furthermore: the connecting rod is fitted with a sleeve, a ball is installed below the sleeve, and an adjusting plate is fitted around the ball.

[0009] Furthermore: the connecting rod is provided with an external thread, and the sleeve is provided with an internal thread, forming a threaded connection between the connecting rod and the sleeve.

[0010] Furthermore: the lower surface of the adjustment plate is provided with an anti-slip pad, and a circular hole is opened in the adjustment plate, with the ball fitting snugly against the circular hole.

[0011] This utility model has the following advantages: In this invention, a remote motor installed inside a horizontal plate is remotely activated. During operation, the motor drives a first gear to rotate, which in turn drives a second gear to rotate synchronously. The second gear, through its threaded connection with a threaded rod, causes the rod to move axially while rotating. During this axial movement, the rod, supported by a bearing at its lower end mounted on a mounting plate, stably pushes the mounting plate downwards, driving a piston below it to move axially within an oil reservoir. As the piston moves downwards, it applies pressure to the lubricating oil inside the reservoir, causing it to be discharged through the lubrication nozzle. This remote control eliminates the need for multiple close-range manual operations during the entire lubrication process, effectively avoiding the problems of frequent manual refueling and cumbersome operation inherent in traditional technologies, thus improving the convenience and stability of lubrication.

[0012] In this invention, the sleeve fitted on the outside of the connecting rod is rotated by the operator. During rotation, the sleeve's internal thread and the external thread of the connecting rod form a threaded transmission, causing the sleeve to move axially along the connecting rod. This axial movement of the sleeve drives the ball at its lower end and the adjusting plate to adjust downwards synchronously, ultimately bringing the adjusting plate into contact with the outer wall of the bearing seat. Because the adjusting plate can rotate freely in multiple directions through the spherical structure of the ball, it can automatically adjust its contact state according to the angle of the outer wall of the bearing seat, thus achieving stable support and reliable positioning. This structure effectively fixes the entire lubrication device during oil injection, preventing shaking caused by vibration or reaction force, ensuring accurate contact between the oil nozzle and the lubrication nozzle, and improving the stability and reliability of the oil injection process.

[0013] Other features and advantages of this utility will be set forth in the following description and will be apparent in part from the description or learned by practicing this utility. Attached Figure Description

[0014] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).

[0015] Figure 1 This is a schematic diagram of the overall structure of a bearing housing center shaft provided in an embodiment of this application.

[0016] Figure 2 This is a schematic diagram of a central shaft structure lubrication device for a bearing housing, as described in this utility model.

[0017] Figure 3 This utility model relates to a central shaft structure for bearing housings. Figure 2 An enlarged structural diagram of part A in the middle.

[0018] Figure 4 This utility model relates to a central shaft structure for bearing housings. Figure 2 Enlarged structural diagram of part B. Attached Figure Description

[0019] 1. Bearing housing; 2. Bearing assembly; 3. Central shaft body; 4. Lubrication device; 401. Connecting frame; 402. Oil reservoir; 403. Oil nozzle; 404. Piston; 405. Horizontal plate; 406. Remote motor; 407. First gear; 408. Second gear; 409. Threaded rod; 410. Mounting plate; 5. Fitting device; 501. Vertical rod; 502. Connecting rod; 503. Sleeve; 504. Ball; 505. Adjusting plate; 6. Lubrication nozzle. Detailed Implementation

[0020] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. It should be understood that these embodiments are merely for further explanation of this utility model and should not be construed as limiting the scope of protection of this utility model. Technical engineers in the field can make some non-essential improvements and adjustments to this utility model based on the above-described invention. All other embodiments obtained by those skilled in the art based on the embodiments in this utility model without creative effort are within the scope of protection of this utility model.

[0021] Please see Figures 1-4 , This utility model provides a central shaft structure for a bearing housing 1: including a bearing housing 1, a bearing assembly 2 installed inside the bearing housing 1, a central shaft body 3 installed inside the bearing assembly 2, a lubrication nozzle 6 installed on the outer wall of the bearing housing 1, a lubrication device 4 installed inside the lubrication nozzle 6, and a bonding device 5 fixedly connected to the lubrication device 4. The lubrication device 4 includes a connecting frame 401, an oil reservoir 402 installed inside the connecting frame 401, a piston 404 slidably connected inside the oil reservoir 402, an oil injection nozzle 403 installed at the lower end of the oil reservoir 402, the oil injection nozzle 403 being installed inside the lubrication nozzle 6, a horizontal plate 405 installed above the connecting frame 401, a remote motor 406 installed inside the horizontal plate 405, a first gear 407 installed at the output end of the remote motor 406, a second gear 408 meshing inside the first gear 407, a threaded rod 409 installed inside the second gear 408, the threaded rod 409 and the second gear 408 forming a threaded connection, a mounting plate 410 installed at the lower end of the threaded rod 409 via a bearing, and the mounting plate 410 being fixedly connected to the upper end of the piston 404.

[0022] The threaded rod 409 and the second gear 408 are connected by a threaded structure. When the second gear 408 rotates, it can directly drive the threaded rod 409 to make axial displacement. Through this rotation-linear conversion, the structure can achieve a stable and controllable propulsion stroke within a limited space. This is beneficial for accurately adjusting the oil pressure of the piston 404 and avoids the problem of traditional push rod structure being easily affected by shaking.

[0023] Specifically, such as Figures 2-3 As shown, the second gear 408 is fitted inside the connecting frame 401, and the second gear 408 and the connecting frame 401 form a movable connection. The oil nozzle 403 has an external thread, the lubrication nozzle 6 has an internal thread, and the oil nozzle 403 and the lubrication nozzle 6 form a threaded connection.

[0024] Specifically, such as Figure 4 As shown, the bonding device 5 includes two vertical rods 501, which are symmetrically installed below the connecting frame 401. A connecting rod 502 is installed below the vertical rods 501. A housing 503 is fitted over the connecting rod 502. A ball 504 is installed below the housing 503. An adjusting plate 505 is fitted over the ball 504. The connecting rod 502 has external threads, and the housing 503 has internal threads. The connecting rod 502 and the housing 503 form a threaded connection. The lower surface of the adjusting plate 505 is provided with an anti-slip pad. A circular hole is opened in the adjusting plate 505, and the ball 504 fits into the circular hole.

[0025] The connecting rod 502 has an external thread on its outer side, and the sleeve 503 has an internal thread on its inner side. The two form a threaded transmission relationship, allowing the sleeve 503 to move precisely up and down along the connecting rod 502. This fit allows for smooth fine-tuning with a small pitch, facilitating the adjustment of the position of the ball 504 and the adjusting plate 505, and improving the flexibility and stability of the fit support. The lower surface of the adjusting plate 505 is provided with an anti-slip pad. When the adjusting plate 505 is attached to the outer wall of the bearing seat 1, the anti-slip pad increases the coefficient of friction, allowing the adjusting plate 505 to be firmly positioned. This fit can effectively prevent the lubrication device 4 from shifting due to vibration or reaction force during the oil injection process, improving the stability of the entire structure.

[0026] Working principle and usage: The remote motor 406, located within the horizontal plate 405, is remotely activated. During operation, the motor 406 drives the first gear 407 to rotate. This rotation further drives the meshing second gear 408 to rotate synchronously. The second gear 408, through its threaded connection with the threaded rod 409, causes the threaded rod 409 to move axially while rotating. During this axial movement, the threaded rod 409, supported by a bearing at its lower end mounted on the mounting plate 410, stably pushes the mounting plate 410 downwards, driving the piston 404 below it to move axially within the oil reservoir 402. As the piston 404 moves downwards, it pushes the oil reservoir 402... The internal lubricating oil is pressurized, causing it to flow into the lubrication nozzle 6 through the grease nipple 403. The operator rotates the sleeve 503, which is fitted onto the outside of the connecting rod 502. As the sleeve 503 rotates, its internal thread interacts with the external thread on the outside of the connecting rod 502, creating a threaded transmission that causes the sleeve 503 to move axially along the connecting rod 502. During this axial movement, the ball 504 at its lower end and the adjusting plate 505 are simultaneously adjusted downwards, ultimately causing the adjusting plate 505 to fit against the outer wall of the bearing seat 1. Because the adjusting plate 505 can rotate freely in multiple directions through the spherical structure of the ball 504, it can automatically adjust its fit according to the angle of the outer wall of the bearing seat 1, thus achieving stable support and reliable positioning.

[0027] The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A central shaft structure for a bearing housing (1), characterized in that, Includes a bearing housing (1), a bearing assembly (2) installed inside the bearing housing (1), a central shaft body (3) installed inside the bearing assembly (2), a lubrication nozzle (6) installed on the outer wall of the bearing housing (1), a lubrication device (4) installed inside the lubrication nozzle (6), and a bonding device (5) fixedly connected to the outside of the lubrication device (4). The lubrication device (4) includes a connecting frame (401), an oil reservoir (402) is installed inside the connecting frame (401), a piston (404) is slidably connected inside the oil reservoir (402), an oil injection nozzle (403) is installed at the lower end of the oil reservoir (402), the oil injection nozzle (403) is installed inside the lubrication nozzle (6), a horizontal plate (405) is installed above the connecting frame (401), and a remote motor (406) is installed inside the horizontal plate (405). The output end of the remote motor (406) is equipped with a first gear (407), and a second gear (408) meshes with the first gear (407). A threaded rod (409) is installed in the second gear (408). The threaded rod (409) and the second gear (408) form a threaded connection. The lower end of the threaded rod (409) is equipped with a mounting plate (410) through a bearing. The mounting plate (410) is fixedly connected to the upper end of the piston (404).

2. The bearing housing (1) center shaft structure according to claim 1, characterized in that, The second gear (408) is engaged in the connecting frame (401), and the second gear (408) and the connecting frame (401) form a movable connection.

3. The central shaft structure for a bearing housing (1) according to claim 1, characterized in that, The oil injection nozzle (403) has an external thread, and the lubrication nozzle (6) has an internal thread, and the oil injection nozzle (403) and the lubrication nozzle (6) form a threaded connection.

4. The central shaft structure for a bearing housing (1) according to claim 1, characterized in that, The bonding device (5) includes two vertical rods (501), which are symmetrically installed below the connecting frame (401), and a connecting rod (502) is installed below the vertical rods (501).

5. The central shaft structure for a bearing housing (1) according to claim 4, characterized in that, The connecting rod (502) is covered with a housing (503), and a ball (504) is installed below the housing (503). An adjusting plate (505) is covered with the ball (504).

6. The central shaft structure for a bearing housing (1) according to claim 5, characterized in that, The connecting rod (502) has an external thread, and the sleeve (503) has an internal thread, forming a threaded connection between the connecting rod (502) and the sleeve (503).

7. A central shaft structure for a bearing housing (1) according to claim 6, characterized in that, The lower surface of the adjustment plate (505) is provided with an anti-slip pad, and a circular hole is opened in the adjustment plate (505), and the sphere (504) fits into the circular hole.

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