Radial spherical plain bearing with sealing structure

Abstract

The radial spherical plain bearing with the sealing structure comprises an outer spherical bearing and an inner spherical bearing, the outer spherical bearing is located outside the inner spherical bearing, the inner wall of the outer spherical bearing is connected with the outer wall of the inner spherical bearing in a sliding mode, outer clamping grooves are formed in the front end and the rear end of the outer spherical bearing, and the outer clamping grooves are connected with the outer spherical bearing in a sliding mode. And a plurality of groups of positioning grooves are formed in the outer clamping groove in a penetrating manner. According to the radial spherical plain bearing with the sealing structure, the sealing ferrule, the external connecting rod, the positioning groove, the outer clamping groove, the mounting seat, the limiting seat and the connecting seat are arranged, so that the firmness and the stability between the sealing ferrule and the insert bearing are enhanced, meanwhile, the damaged sealing ferrule is convenient to disassemble and replace, the structural flexibility is improved, and the service life is prolonged. The problem that the service life of the radial spherical plain bearing is affected due to the fact that the radial spherical plain bearing adopts an immobilized sealing structure for protection and the sealing structure cannot be quickly disassembled and replaced after being damaged is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of spherical plain bearings, and particularly relates to a spherical plain bearing with a sealing structure. Background Technique

[0002] A spherical plain bearing is a common mechanical transmission component, which is widely used in mechanical equipment in various fields. Its main functions are to support and transmit axial and radial loads. At the same time, it has high rotational speed and precision requirements. By reducing the contact area, the spherical plain bearing has advantages such as low noise and low vibration, which can ensure the accuracy and stability of the equipment. During use, attention should be paid to the bearing life and load capacity, and the bearing should be cleaned and lubricated regularly to avoid excessive vibration and impact.

[0003] At present, the spherical plain bearings in use are protected by a fixed sealing structure. When the sealing structure is damaged, it cannot be quickly disassembled and replaced, which affects the service life of the spherical plain bearing.

[0004] Therefore, a new type of spherical plain bearing with a sealing structure is proposed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a spherical plain bearing with a sealing structure to solve the problem that the spherical plain bearing in the above background technique is protected by a fixed sealing structure and cannot be quickly disassembled and replaced when the sealing structure is damaged, which affects the service life of the spherical plain bearing.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A spherical plain bearing with a sealing structure, including an outer spherical surface bearing and an inner spherical surface bearing. The outer spherical surface bearing is located outside the inner spherical surface bearing, and the inner wall of the outer spherical surface bearing and the outer wall of the inner spherical surface bearing form a sliding connection;

[0007] External clamping grooves are respectively arranged at the front end and the rear end of the outer spherical surface bearing. A plurality of groups of positioning grooves are arranged through the inside of the external clamping grooves. A sealing ring is attached to the inner wall of the outer spherical surface bearing. A plurality of groups of external connecting rods are respectively fixed at the front end and the rear end of the sealing ring.

[0008] Preferably, a plurality of groups of mounting seats are respectively fixed at the front end outside the external clamping grooves. The mounting seats are respectively located on both sides of the positioning grooves. The external connecting rods penetrate through the inside of the positioning grooves. Connecting seats are respectively fixed on both sides of the outer end of the external connecting rods. A limiting seat is respectively fixed at the front end of one side of the connecting seat.

[0009] Preferably, the diameter of the outer spherical surface bearing is larger than that of the inner spherical surface bearing. The connecting seats and the mounting seats are in one-to-one correspondence. The outside of the limiting seat and the inside of the mounting seat form a clamping connection.

[0010] Preferably, third lubricating grooves and fourth lubricating grooves are transversely formed on the outside of the inner spherical surface bearing, and through holes are formed on the surface of the inner spherical surface bearing, and the through holes are located between the third lubricating grooves and the fourth lubricating grooves.

[0011] Preferably, second lubricating grooves and first lubricating grooves are transversely formed on the outside of the outer spherical surface bearing, and the first lubricating grooves and the second lubricating grooves have the same width.

[0012] Preferably, an outer protective cover is fixedly connected to the outer end inside the outer spherical surface bearing, an inner protective cover is fixedly connected to the inner end inside the outer spherical surface bearing, and a reinforcing ring is fixedly connected to the center inside the outer spherical surface bearing.

[0013] Preferably, a plurality of fixing seats are fixedly connected to the outer wall of the reinforcing ring, a plurality of support plates are fixedly connected to the inner wall of the outer protective cover, and a moisture-proof inner layer is fixedly connected to the outer wall of the inner protective cover.

[0014] Preferably, the support plates and the fixing seats correspond to each other one by one, the outer ends of the support plates penetrate through the interiors of the fixing seats, and a snap connection is formed between the outer parts of the support plates and the inner walls of the fixing seats.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The spherical plain bearing with a sealing structure not only realizes a strong sealing function, realizes a convenient lubrication function, but also realizes a protection function;

[0016] (1) By providing a sealing ring, an external rod, a positioning groove, an external clamping groove, a mounting seat, a limiting seat and a connecting seat, the sealing ring is placed in close contact with the inner wall of the outer spherical surface bearing, the external rod penetrates through the interior of the positioning groove, and the positioning groove plays a certain guiding role during the installation operation. The limiting seat can be clamped and fixed inside the mounting seat by using a clamping structure to fix the sealing ring in all directions, ensuring that the sealing ring will not fall off during use and affect the sealing effect of the overall structure, strengthening the firmness and stability between the sealing ring and the outer spherical surface bearing, and at the same time facilitating the disassembly and replacement of the damaged sealing ring to improve the flexibility of the structure;

[0017] (2) By providing a first lubricating groove, a second lubricating groove, a third lubricating groove, a fourth lubricating groove and a through hole, lubricant can be added by using the through hole to lubricate the surface of the inner spherical surface bearing. The lubricant flows into the interiors of the third lubricating groove and the fourth lubricating groove to prevent the lubricant from spilling and reducing the lubrication effect. The outer spherical surface bearing can also be added with lubricant to ensure that both the outer spherical surface bearing and the inner spherical surface bearing are protected by lubrication, and the service lives of the outer spherical surface bearing and the inner spherical surface bearing are prolonged;

[0018] (3) By providing an outer protective cover, an inner protective cover, a reinforcing ring, a fixing seat, a support plate and a moisture-proof inner layer, and using the inner protective cover and the outer protective cover to cooperate with each other, strong protection is provided for the spherical roller bearing, reducing damage caused during transmission. The support plate is clamped and fixed inside the fixing seat, which can fix the position of the reinforcing ring, preventing the position of the reinforcing ring from shifting during protection and affecting the reinforcement effect, greatly enhancing the stiffness and hardness of the spherical roller bearing itself. The moisture-proof inner layer can enhance the moisture-proof property of the spherical roller bearing and avoid erosion damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a front view sectional structure schematic diagram of the present utility model;

[0020] Figure 2 is a top view structure schematic diagram of the sealing collar of the present utility model;

[0021] Figure 3 is a top view structure schematic diagram of the third lubricating groove of the present utility model;

[0022] Figure 4 is a front view sectional structure schematic diagram of the spherical roller bearing of the present utility model.

[0023] In the figure: 1, spherical roller bearing; 2, outer clamping groove; 3, external connecting rod; 4, mounting seat; 5, limiting seat; 6, connecting seat; 7, inner spherical bearing; 8, positioning groove; 9, first lubricating groove; 10, second lubricating groove; 11, sealing collar; 12, third lubricating groove; 13, through hole; 14, fourth lubricating groove; 15, outer protective cover; 16, support plate; 17, fixing seat; 18, reinforcing ring; 19, moisture-proof inner layer; 20, inner protective cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1: Please refer to Figures 1-4 , a radial spherical plain bearing with a sealing structure, including a spherical roller bearing 1 and an inner spherical bearing 7. The spherical roller bearing 1 is located outside the inner spherical bearing 7, and the inner wall of the spherical roller bearing 1 and the outer wall of the inner spherical bearing 7 form a sliding connection;

[0026] Both the front end and the rear end of the spherical roller bearing 1 are provided with outer clamping grooves 2. A plurality of groups of positioning grooves 8 are arranged through the inside of the outer clamping groove 2. A sealing ring 11 is attached to the inner wall of the spherical roller bearing 1. A plurality of outer connecting rods 3 are fixedly connected to both the front end and the rear end of the sealing ring 11;

[0027] A plurality of mounting seats 4 are fixedly connected to the front end outside the outer clamping groove 2. The mounting seats 4 are located on both sides of the positioning groove 8 in sequence. The outer connecting rod 3 penetrates through the inside of the positioning groove 8. Connecting seats 6 are fixedly connected to both sides of the outer end of the outer connecting rod 3. A limiting seat 5 is fixedly connected to the front end of one side of the connecting seat 6;

[0028] The diameter of the spherical roller bearing 1 is larger than that of the inner spherical bearing 7. The connecting seats 6 and the mounting seats 4 correspond to each other one by one. The outside of the limiting seat 5 and the inside of the mounting seat 4 form a snap connection;

[0029] Specifically, as Figure 1 and Figure 2 shown, during use, the sealing ring 11 is placed in contact with the inner wall of the spherical roller bearing 1. The outer connecting rod 3 penetrates through the corresponding positioning groove 8 until the limiting seat 5 is snap-fitted and fixed inside the mounting seat 4 to fix the sealing ring 11 in all directions. When the sealing ring 11 needs to be disassembled and replaced, the outer connecting rod 3 is pushed inward to release the snap structure between the limiting seat 5 and the mounting seat 4.

[0030] Embodiment 2: A third lubricating groove 12 and a fourth lubricating groove 14 are horizontally opened on the outside of the inner spherical bearing 7. A through hole 13 is opened on the surface of the inner spherical bearing 7. The through hole 13 is located between the third lubricating groove 12 and the fourth lubricating groove 14;

[0031] A second lubricating groove 10 and a first lubricating groove 9 are horizontally opened on the outside of the spherical roller bearing 1. The first lubricating groove 9 and the second lubricating groove 10 have the same width;

[0032] Specifically, as Figure 1 and Figure 3 shown, during use, lubricant can be added through the through hole 13 to lubricate the surface of the inner spherical bearing 7. The lubricant flows into the third lubricating groove 12 and the fourth lubricating groove 14 to prevent the lubricant from spilling and reducing the lubrication effect. Lubricant can also be added to the spherical roller bearing 1 to ensure that both the spherical roller bearing 1 and the inner spherical bearing 7 are protected by lubrication.

[0033] Embodiment 3: A circle of outer protective covers 15 is fixedly connected to the outer end inside the spherical roller bearing 1. A circle of inner protective covers 20 is fixedly connected to the inner end inside the spherical roller bearing 1. A reinforcing ring 18 is fixedly connected to the center inside the spherical roller bearing 1;

[0034] A plurality of fixing seats 17 are fixedly connected to the outer wall of the reinforcement ring 18, a plurality of support plates 16 are fixedly connected to the inner wall of the outer protective cover 15, and a moisture-proof inner layer 19 is fixedly connected to the outer wall of the inner protective cover 20;

[0035] The support plates 16 correspond to the fixing seats 17 one by one. The outer end of the support plate 16 penetrates through the inside of the fixing seat 17, and the outer part of the support plate 16 and the inner wall of the fixing seat 17 form a snap connection;

[0036] Specifically, as Figure 1 and Figure 4 shown, during use, the support plate 16 is snap-fitted into the inside of the fixing seat 17 to provide support and protection for the outer protective cover 15, and at the same time fix the position of the reinforcement ring 18. The inner protective cover 20 and the outer protective cover 15 cooperate with each other to provide strong protection for the spherical roller bearing 1.

[0037] Working principle: When the present utility model is in use, the sealing ring 11 is placed in contact with the inner wall of the spherical roller bearing 1. The external rod 3 penetrates through the corresponding positioning groove 8 until the limit seat 5 is snap-fitted and fixed inside the mounting seat 4 to fix the sealing ring 11 in all directions. The lubricant can be added through the through hole 13 to lubricate the surface of the inner spherical bearing 7. The lubricant flows into the inside of the third lubricating groove 12 and the fourth lubricating groove 14. The inner spherical bearing 7 and the outer spherical bearing 1 can rotate and swing at any angle during movement.

[0038] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A radial spherical bearing with a sealing structure, comprising an outer spherical bearing (1) and an inner spherical bearing (7), characterized in that: The outer spherical bearing (1) is located outside the inner spherical bearing (7), and the inner wall of the outer spherical bearing (1) and the outer wall of the inner spherical bearing (7) form a sliding connection; The front and rear ends of the outer spherical bearing (1) are both provided with external slots (2), the interior of the external slots (2) is penetrated by a plurality of positioning slots (8), a sealing ring (11) is fitted on the inner wall of the outer spherical bearing (1), and the front and rear ends of the sealing ring (11) are both fixedly connected to a plurality of external connecting rods (3).

2. The radial spherical plain bearing with a sealing structure according to claim 1, characterized in that: The front end of the outer card slot (2) is fixedly connected to a plurality of mounting seats (4), the mounting seats (4) are sequentially located on both sides of the positioning slot (8), the outer connecting rod (3) passes through the interior of the positioning slot (8), the two sides of the outer end of the outer connecting rod (3) are fixedly connected to connecting seats (6), the front end of one side of the connecting seat (6) is fixedly connected to a limiting seat (5), the diameter of the outer spherical bearing (1) is greater than the diameter of the inner spherical bearing (7), the connecting seat (6) corresponds to the mounting seat (4) one by one, and the outer portion of the limiting seat (5) is snap-fitted with the inner portion of the mounting seat (4).

3. The radial spherical plain bearing with a sealing structure according to claim 1, characterized in that: A third lubrication groove (12) and a fourth lubrication groove (14) are transversely formed on the outside of the inner spherical bearing (7), and a through hole (13) is formed on the surface of the inner spherical bearing (7), wherein the through hole (13) is located between the third lubrication groove (12) and the fourth lubrication groove (14).

4. The radial spherical plain bearing with a sealing structure according to claim 1, characterized in that: A second lubrication groove (10) and a first lubrication groove (9) are transversely opened on the outside of the outer spherical bearing (1); the first lubrication groove (9) and the second lubrication groove (10) have the same width.

5. The radial spherical plain bearing with a sealing structure according to claim 1, characterized in that: An outer protective cover (15) is fixedly connected to the outer end of the outer spherical bearing (1), an inner protective cover (20) is fixedly connected to the inner end of the outer spherical bearing (1), and a reinforcement ring (18) is fixedly connected to the center of the outer spherical bearing (1).

6. The radial spherical plain bearing with a sealing structure according to claim 5, characterized in that: The outer wall of the reinforcement ring (18) is fixedly connected to a plurality of sets of fixing seats (17), the inner wall of the outer protective cover (15) is fixedly connected to a plurality of sets of supporting plates (16), and the outer wall of the inner protective cover (20) is fixedly connected to a moisture-proof inner layer (19).

7. The radial spherical plain bearing with a sealing structure according to claim 6, characterized in that: The support plate (16) corresponds to the fixing seat (17) one by one, the outer end of the support plate (16) passes through the interior of the fixing seat (17), and the outer portion of the support plate (16) and the inner wall of the fixing seat (17) form a snap-fit ​​connection.

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