Bearing sealing gland device

Abstract

The utility model discloses a bearing sealing gland device, which relates to the technical field of bearing sealing, and adopts the technical scheme that the bearing sealing gland device comprises a gland main body which is disc-shaped, and a shaft hole matched with a bearing journal is formed in the center of the gland main body; a sealing gasket is mounted at the bottom of the gland main body around the shaft hole, and an elastic component is mounted at the top of the gland main body; when the gland body is driven by the surrounding environment to vibrate, the damping spring can stretch out and draw back along with the gland body, part of impact force is buffered through deformation, work done by external force is converted into elastic potential energy of the damping spring to be stored, and therefore vibration energy transmitted to an object or a structure connected with the damping spring is reduced to a certain degree, and the service life of the damping spring is prolonged. And meanwhile, the vibration frequency between the gland main body and the bearing seat is changed, resonance between the gland main body and the bearing seat is avoided, and therefore looseness of a connecting part is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing seals, and more particularly to a bearing seal gland device. Background Art

[0002] Bearings are a key component in many mechanical transmission devices, and their performance directly affects the normal operation and service life of the equipment. The sealing performance of bearings plays a vital role in preventing dust, impurities, moisture, etc. from entering the bearing and preventing lubricant leakage.

[0003] Traditional bearing sealing methods often use a simple sealing cover structure. This sealing cover is easily affected by vibration and resonates with the bearing seat, thereby increasing the vibration amplitude and eventually causing the connection to loosen. When the connection becomes loose, tiny gaps will appear in the sealing part, causing external pollutants such as dust and moisture to gradually penetrate into the bearing, accelerating the wear of the bearing, shortening its service life, and even causing it to fall off, posing a hidden danger to the safe and stable operation of the equipment.

[0004] Therefore, in order to solve the above technical problems, the present application proposes a bearing sealing cover device. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention aims to provide a bearing sealing cover device.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a bearing sealing gland device, comprising a gland body, which is disc-shaped and has an axial hole adapted to fit the bearing journal at its center; a sealing gasket is mounted on the bottom of the gland body surrounding the axial hole, and an elastic component is mounted on the top of the gland body;

[0007] The elastic component includes a circular groove seat, a circular through groove aligned with the shaft hole is opened in the middle of the circular groove seat, the inner surface of the circular groove seat is connected to the pressure cover body through a damping spring, and the top of the circular groove seat is connected to the bearing seat through a connecting piece.

[0008] Preferably, a linear maintaining component is installed between the gland body and the circular groove seat to maintain the gland body to move linearly relative to the circular groove seat.

[0009] Preferably, the straight line maintaining component includes a plurality of guide rails fixed on the outer side wall of the circular groove seat and distributed in a circular array. The surface of the guide rail is slidably connected with a slider. The bottom end of the slider is fixed to the top of the pressure cover body through a connecting rod. The slider and the guide rail are used to maintain the linear movement of the pressure cover body relative to the circular groove seat.

[0010] Preferably, a damper is installed between the inner surface of the circular groove seat and the top of the gland body to achieve better shock absorption effect.

[0011] Preferably, the connecting member includes a plurality of L-shaped plates fixed on the top of the circular groove seat and distributed in a circumferential row with each other, the ends of the L-shaped plates are welded with mounting plates, and the surfaces of the mounting plates are provided with through holes for screws to pass through.

[0012] Preferably, the sealing gasket has a root connected to the bottom of the gland body, and an outer lip and an inner lip located on the top of the root and integrally formed with the root, wherein a V-shaped structure is formed between the outer lip and the inner lip, and the V-shaped structure has a certain interference fit.

[0013] Preferably, the sealing gasket is made of nitrile rubber material, which has the characteristics of high elasticity and high wear resistance.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the present invention, when the gland body is vibrated by the surrounding environment, the damping spring will also expand and contract, and cushion a part of the impact force through this deformation, and convert the work done by the external force into its own elastic potential energy and store it, thereby reducing the vibration energy transmitted to the object or structure connected to it to a certain extent, thereby reducing the vibration amplitude of the gland body, and at the same time changing the vibration frequency between the gland body and the bearing seat to avoid resonance with the bearing seat, thereby avoiding loosening of the connection part, so as to solve the problem in the background technology that the sealing cover is easily affected by vibration and resonates with the bearing seat, thereby increasing the vibration amplitude and ultimately leading to loosening of the connection part.

[0016] 2. In this utility model, since the mounting plate is located above the gland body, when the gland body is in contact with the bearing for installation, it will inevitably push it in the opposite direction, causing the gland body to move upward along the circular groove seat, while squeezing the damping spring. The damping spring can always exert downward pressure on the gland body by its rebound force, making its connection with the bearing more secure.

[0017] 3. The utility model also installs a damper between the inner surface of the circular groove seat and the top of the gland body. When vibration occurs, the damping spring and the damper cooperate with each other. On the one hand, the damping spring absorbs energy through elastic deformation, and on the other hand, the damper consumes energy, so that the entire shock absorption system can more effectively cope with vibration impact and achieve better shock absorption effect.

[0018] 4. The V-shaped structure formed between the outer lip and the inner lip of the utility model has a certain interference fit. When the sealing gasket contacts the bearing connecting shaft, stress is generated on the sealing working surface through the structure's own resilience, thereby achieving closer contact with the bearing connecting shaft to achieve a better sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of the specific structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the specific structure of the bottom of the utility model;

[0022] Figure 3 This is a schematic diagram of the specific internal structure of the circular groove seat in the utility model;

[0023] Figure 4 This is a schematic diagram of the specific structure of the utility model after being cut from the middle cross section.

[0024] In the figure: 1. Gland body;

[0025] 2. Elastic component; 201. Circular groove seat; 202. Damping spring; 203. Guide rail; 204. Slider; 205. Connecting rod;

[0026] 3. Connector; 301. L-shaped plate; 302. Mounting plate; 303. Through hole;

[0027] 4. Sealing gasket; 401. Root; 402. Outer lip; 403. Inner lip; 5. Damper. DETAILED DESCRIPTION

[0028] like Figure 1-4As shown, the utility model provides a bearing sealing gland device, including a gland body 1, which is disc-shaped and has an axial hole adapted to the bearing shaft neck at the center; a sealing gasket 4 is installed around the axial hole at the bottom of the gland body 1, and an elastic component 2 is installed on the top of the gland body 1; the elastic component 2 includes a circular groove seat 201, a circular through groove aligned with the axial hole is opened in the middle of the circular groove seat 201, the inner surface of the circular groove seat 201 is connected to the gland body 1 through a damping spring 202, and the top of the circular groove seat 201 is connected to the bearing seat through a connecting member 3, the connecting member 3 includes a plurality of L-shaped plates 301 fixed to the top of the circular groove seat 201 and distributed in a circumferential row with each other, the end of the L-shaped plate 301 is welded with a mounting plate 302, and the surface of the mounting plate 302 is provided with a through hole 303 for screws to pass through.

[0029] When the damping spring 202 is fully extended, the mounting plate 302 on the connecting piece 3 is located above the gland body 1. In this way, when the mounting plate 302 is fixed to the bearing seat (the screws are passed through the through holes 303 on the mounting plate 302 and then rotated clockwise to install them into the screw holes reserved on the bearing seat to achieve the fixation of the mounting plate 302 and the bearing seat), the gland body 1 is installed on the bearing in the bearing seat. Since the mounting plate 302 is located above the gland body 1, when the gland body 1 is in contact with the bearing for installation, it is bound to push it in the opposite direction, so that the gland body 1 moves upward along the circular groove seat 201, squeezing the damping spring 202. Spring 202, the damping spring 202 can always give downward pressure to the gland body 1 by using its rebound force, so that its connection with the bearing is more secure, and when the gland body 1 is vibrated by the surrounding environment, the damping spring 202 will also expand and contract, and cushion part of the impact force through this deformation, and convert the work done by the external force into its own elastic potential energy and store it, thereby reducing the vibration energy transmitted to the object or structure connected to it to a certain extent, thereby reducing the vibration amplitude of the gland body 1, and at the same time changing the vibration frequency between the gland body 1 and the bearing seat to avoid resonance with the bearing seat, thereby avoiding loosening of the connection part.

[0030] Furthermore, a linear maintaining component is installed between the pressure cover body 1 and the circular groove seat 201 to maintain the linear movement of the pressure cover body 1 relative to the circular groove seat 201. The linear maintaining component includes a plurality of guide rails 203 fixed on the outer wall of the circular groove seat 201 and distributed in a circular array. The surface of the guide rail 203 is slidably connected to a slider 204. The bottom end of the slider 204 is fixed to the top of the pressure cover body 1 through a connecting rod 205. That is, when the pressure cover body 1 moves upward along the circular groove seat 201, the connecting rod 205 thereon also drives the slider 204 to move upward along the guide rail 203. The slider 204 and the guide rail 203 are used to maintain the linear movement of the pressure cover body 1 relative to the circular groove seat 201, thereby preventing the damping spring 202 from being pulled obliquely and eventually damaged.

[0031] In order to achieve a better shock absorption effect, the utility model further installs a damper 5 between the inner surface of the circular groove seat 201 and the top of the pressure cover body 1. When vibration occurs, the damping spring 202 cooperates with the damper 5. On the one hand, the damping spring 202 absorbs energy through elastic deformation, and on the other hand, the damper 5 consumes energy, so that the entire shock absorption system can more effectively cope with vibration impact and achieve a better shock absorption effect.

[0032] When the gland body 1 is installed on the bearing, the sealing gasket 4 is connected to the bearing connecting shaft, thereby sealing the gap in the connection, wherein the sealing gasket 4 has a root 401 connected to the bottom of the gland body 1, and an outer lip 402 and an inner lip 403 located at the top of the root 401 and integrally formed with the root 401. A V-shaped structure is formed between the outer lip 402 and the inner lip 403. The formed V-shaped structure has a certain interference fit. When the sealing gasket 4 contacts the bearing connecting shaft, stress is generated on the sealing working surface through the structure's own resilience, thereby achieving closer contact with the bearing connecting shaft to achieve a better sealing effect.

[0033] In addition, the sealing gasket 4 is made of nitrile rubber material, which has high elasticity. It can flexibly adjust its own shape according to the shape of the sealing surface and the deformation during equipment operation, and fit tightly to the shaft neck, pressure cover body 1 and other related parts to achieve good sealing. At the same time, it has good wear resistance. During the operation of the equipment, even if there is a certain friction with the rotating shaft neck and other parts, it can withstand wear well and maintain the sealing effect.

[0034] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A bearing sealing gland device, comprising a gland body (1) in the shape of a disc, with a shaft hole adapted to fit the bearing journal formed in the center thereof; a sealing gasket (4) is mounted on the bottom of the gland body (1) around the shaft hole, and is characterized in that: An elastic component (2) is installed on the top of the gland body (1); The elastic component (2) includes a circular groove seat (201), a circular through groove (208) aligned with the shaft hole is provided in the middle of the circular groove seat (201), the inner surface of the circular groove seat (201) is fixed to the top of the pressure cover body (1) through a damping spring (202), and the top of the circular groove seat (201) is connected to the bearing seat through a connecting piece (3).

2. A bearing seal gland device according to claim 1, characterized in that: A linear maintaining component is installed between the gland body (1) and the circular groove seat (201) for maintaining the gland body (1) in linear movement relative to the circular groove seat (201).

3. The bearing seal gland device according to claim 2, characterized in that: The straight line maintaining component comprises a plurality of guide rails (203) fixed on the outer side wall of the circular groove seat (201) and distributed in a circumferential array, the surface of the guide rails (203) being slidably connected to a slider (204), and the bottom end of the slider (204) being fixed to the top of the gland body (1) via a connecting rod (205).

4. The bearing seal gland device according to claim 1, characterized in that: A damper (5) is also installed between the inner surface of the circular groove seat (201) and the top of the gland body (1).

5. The bearing seal gland device according to claim 1, characterized in that: The connecting member (3) comprises a plurality of L-shaped plates (301) fixed to the top end of the circular groove seat (201) and arranged in a circular array. The ends of the L-shaped plates (301) are welded with mounting plates (302), and the surfaces of the mounting plates (302) are provided with through holes (303) for screws to pass through.

6. The bearing seal gland device according to claim 1, characterized in that: The sealing gasket (4) comprises a root (401) connected to the bottom of the gland body (1), and an outer lip (402) and an inner lip (403) located at the top of the root (401) and integrally formed with the root (401), wherein a V-shaped structure is formed between the outer lip (402) and the inner lip (403).

7. The bearing seal gland device according to claim 1, characterized in that: The sealing gasket (4) is made of nitrile rubber material.

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