Four-oil-blade bearing

Abstract

The utility model provides a four-oil-blade bearing which comprises a bearing body, a plurality of pads are detachably and fixedly arranged on the inner wall of the bearing body, and a babbitt metal layer is cast on the inner wall of each pad. According to the utility model, the tile blocks are detachably fixed on the inner wall of the bearing body, and the babbitt metal layers are cast on the inner walls of the tile blocks, so that when the babbitt metal layers are abraded, only the tile blocks need to be replaced, and the whole bearing body does not need to be replaced, the operation is simpler and more flexible, the maintenance cost and time are saved, and the bearing has the characteristics of high economic benefit and strong practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, and particularly relates to a four-oil-leaf bearing. Background Art

[0002] In the prior art, as an efficient anti-friction element, the four-oil-leaf supporting bearing is widely used in high-speed, heavy-load and precision mechanical equipment. Its unique design lies in that four oil inlet grooves are opened along the circumferential direction inside the bearing body, and wedge-shaped slope angles are arranged on both sides of each oil inlet groove to optimize the distribution of lubricating oil and the formation of oil film, thereby significantly reducing friction, wear and temperature rise, and improving the stability and service life of the bearing. In addition, by casting a Babbitt alloy layer on the inner wall of the bearing body and precisely controlling the profile of the Babbitt alloy layer through precision machining, the eccentric effect of the bearing inner hole is realized, further enhancing the bearing capacity and running smoothness of the bearing.

[0003] However, the four-oil-leaf supporting bearing with this structure also faces some problems that cannot be ignored. After the bearing body operates for a long time, due to reasons such as wear, corrosion or improper operation, the Babbitt alloy layer on its inner wall may be damaged. Once the Babbitt alloy layer is damaged, according to the prior art, usually the entire bearing body needs to be replaced, which undoubtedly causes a great waste of resources, and increases the maintenance cost and time. In addition, due to the complex structure and large weight of the bearing body, the replacement process is often cumbersome and not easy to operate, bringing inconvenience to the maintenance and repair of equipment. Summary of the Invention

[0004] In order to overcome the above deficiencies of the prior art, the purpose of the utility model is to provide a four-oil-leaf bearing. By detachably and fixedly arranging the tile 3 on the inner wall of the bearing body 1, a Babbitt alloy layer 4 is cast on the inner wall of the tile 3. When the Babbitt alloy layer 4 is worn, only the tile 3 needs to be replaced, rather than the entire bearing body 1. The operation is simpler and more flexible, saving maintenance cost and time, and having the characteristics of high economic efficiency and strong practicability.

[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] A four-oil-leaf bearing includes a bearing body 1, and a plurality of tiles 3 are detachably and fixedly arranged on the inner wall of the bearing body 1, and a Babbitt alloy layer 4 is cast on the inner wall of the tile 3.

[0007] The tiles 3 are four in number and are evenly arranged on the inner wall of the bearing body 1.

[0008] The thickness of the tile 3 is the same as that of the bearing body 1.

[0009] The inner wall of the bearing body 1 and the tile 3 are fixed by screws 2.

[0010] The inner wall of the bearing body 1 and the bearing segment 3 are fixed by a key 5.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, the bearing segment 3 is detachably and fixedly arranged on the inner wall of the bearing body 1, and a Babbitt alloy layer 4 is cast on the inner wall of the bearing segment 3. When the Babbitt alloy layer 4 is worn, only the bearing segment 3 needs to be replaced, instead of replacing the whole bearing body 1. The operation is simpler and more flexible, saving maintenance cost and time, and having the characteristics of high economic efficiency and strong practicability. Description of the Drawings

[0013] Figure 1 It is a schematic plan view of Embodiment 1 of the utility model.

[0014] Figure 2 It is a schematic plan view of Embodiment 2 of the utility model.

[0015] In the figure: 1 - bearing body; 2 - screw; 3 - bearing segment; 4 - Babbitt alloy layer; 5 - key. Detailed Description of the Invention

[0016] The following further describes the utility model in detail with reference to the drawings.

[0017] Refer to Figure 1 and Figure 2 , a four-lobe bearing, comprising a bearing body 1, wherein a plurality of bearing segments 3 are detachably and fixedly arranged on the inner wall of the bearing body 1, and a Babbitt alloy layer 4 is cast on the inner wall of the bearing segment 3.

[0018] As shown in Figure 1 and Figure 2 , there are four bearing segments 3, which are evenly arranged on the inner wall of the bearing body 1.

[0019] As shown in Figure 1 and Figure 2 , the thickness of the bearing segment 3 is the same as that of the bearing body 1.

[0020] As shown in Figure 1 , the inner wall of the bearing body 1 and the bearing segment 3 are fixed by screws 2.

[0021] As shown in Figure 2 , the inner wall of the bearing body 1 and the bearing segment 3 are fixed by a key 5.

[0022] The working principle of the utility model is:

[0023] After the existing four-lobe journal bearing has been operating for a long time, since the Babbitt alloy layer 4 is directly cast onto the inner wall of the bearing body 1, when the Babbitt alloy layer 4 is damaged, the entire bearing body 1 needs to be replaced, which is cumbersome to operate and increases the maintenance cost and time. In the utility model, the Babbitt alloy layer 4 is arranged on the inner wall of the detachable pad 3, and the pad 3 is fixed on the inner wall of the bearing body 1 through the screw 2 or the key 5. When the Babbitt alloy layer 4 is damaged, only the pad 3 needs to be replaced, rather than the entire bearing body 1. The operation is simpler and more flexible, saving the maintenance cost and time, and having the characteristics of high economic efficiency and strong practicability.

Claims

1. A four-lobe bearing, comprising a bearing body (1), characterized in that: A plurality of bearing segments (3) are detachably and fixedly arranged on the inner wall of the bearing body (1), and a Babbitt alloy layer (4) is cast on the inner wall of the bearing segment (3).

2. A four-lobe bearing according to claim 1, characterized in that: There are four of the bearing segments (3), which are evenly arranged on the inner wall of the bearing body (1).

3. A four-lobe bearing according to claim 1 or 2, characterized in that: The thickness of the bearing segment (3) is the same as that of the bearing body (1).

4. A four-lobe bearing according to claim 1, characterized in that: The inner wall of the bearing body (1) and the bearing segment (3) are fixed by screws (2).

5. A four-lobe bearing according to claim 1, characterized in that: The inner wall of the bearing body (1) and the bearing segment (3) are fixed by a key (5).

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