Roller bearing for a crankshaft

Abstract

The utility model relates to a kind of bearings for hydraulic motor, especially a kind of roller bearing for crankshaft, including shaft sleeve, snap spring being located at the both ends of shaft sleeve and roller being located between the bearing and crankshaft, and the roller is located in several columns, the snap spring is located at the both ends of the roller, it is characterized by further comprising: retaining ring, the retaining ring is located between the adjacent column of roller. A kind of roller bearing for crankshaft provided by the utility model makes the end face between adjacent roller not contact each other, reduces the generation of heat when high-speed rotation, improves the stability and reliability of crankshaft rotation.

Description

Technical Field

[0001] This utility model relates to a bearing for a hydraulic motor, and more particularly to a roller bearing for a crankshaft. Background Technology

[0002] A hydraulic motor has several rows of rollers installed between its crankshaft and bushing, forming a roller bearing, such as... Figure 2 As shown, the existing rollers are in contact with each other, which causes friction between the rollers and easily generates heat. The heat causes changes in the volume of the rollers, which in turn affects the stability and reliability of rotation. Utility Model Content

[0003] To solve the above problems, this utility model provides a roller bearing for crankshafts, the specific technical solution of which is as follows: A roller bearing for a crankshaft includes a bushing, retaining rings disposed at both ends of the bushing, and rollers disposed between the bearing and the crankshaft, wherein the rollers are arranged in several rows, and the retaining rings are located at both ends of the rollers. The bearing is characterized in that it further includes a retaining ring disposed between adjacent rows of rollers.

[0004] The outer diameter of the retaining ring is not greater than the inner diameter of the bushing.

[0005] The outer diameter of the retaining ring abuts against the inner circular surface of the bushing.

[0006] The width of the retaining ring is not less than half the diameter of the roller.

[0007] The thickness of the retaining ring is not less than 1 mm.

[0008] The retaining ring is also disposed between the roller and the retaining ring.

[0009] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a roller bearing for crankshafts that uses retaining rings to prevent the end faces of adjacent rollers from contacting each other, thereby reducing heat generation during high-speed rotation and improving the stability and reliability of crankshaft rotation. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of an existing bearing structure. Detailed Implementation

[0011] The present invention will now be further described with reference to the accompanying drawings.

[0012] like Figure 1As shown, a roller bearing for a crankshaft includes a bushing 2, retaining rings 5 ​​disposed at both ends of the bushing 2, and rollers 3 disposed between the bushing 2 and the crankshaft 6, wherein the rollers 3 are arranged in several rows, the retaining rings 5 ​​are located at both ends of the rollers 3, and further includes a retaining ring 4 disposed between adjacent rows of rollers 3.

[0013] This application fundamentally solves the heat generation problem caused by direct contact and mutual friction between the end faces of multiple rows of rollers 3 in the prior art. Through the physical isolation of the retaining ring 4, direct friction no longer occurs between the rollers 3, thereby significantly reducing the temperature rise during bearing operation, improving the stability and reliability of crankshaft 6 rotation, and extending the service life of the bearing.

[0014] The outer diameter of the retaining ring 4 is no larger than the inner diameter of the bushing 2, ensuring that the retaining ring 4 can be smoothly installed into the bushing 2 and avoiding installation failure due to dimensional interference. It also provides reasonable radial space constraint for the retaining ring 4, which is beneficial for its stability during operation. Furthermore, the outer diameter of the retaining ring 4 abuts against the inner circular surface of the bushing 2, providing radial support for the retaining ring 4 and preventing radial movement or wobble during operation, thus maintaining a precise separation position. In addition, the contact between the retaining ring 4 and the metal bushing 2 also helps to conduct some of the frictional heat to the bushing 2, assisting in heat dissipation and further improving thermal stability.

[0015] The width of the retaining ring 4 is not less than half the diameter of the roller 3, ensuring that the retaining ring 4 has sufficient radial width to effectively prevent the roller 3 from crossing the retaining ring 4 and making end face contact when it moves axially; at the same time, sufficient radial width also improves the rigidity and strength of the retaining ring 4 itself, avoiding failure due to deformation during long-term use.

[0016] The thickness of the retaining ring 4 is not less than 1mm, ensuring that the retaining ring 4 has the necessary structural strength and wear resistance, and can withstand the extrusion and possible impact of the end face of the roller 3, preventing the retaining ring 4 from wearing out, breaking or plastically deforming prematurely, and ensuring its separation function is durable and reliable.

[0017] The retaining ring 4 is also located between the roller 3 and the retaining ring 5. This further eliminates the direct contact friction between the end face of the roller 3 and the retaining ring 5, preventing wear of the end faces of the retaining ring 5 and the roller 3 due to friction, thereby reducing the heat and wear particles generated, improving the overall reliability of the bearing, and extending the service life of the retaining ring 5 and the roller 3.

[0018] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. A roller bearing for a crankshaft, comprising a bushing (2), retaining rings (5) disposed at both ends of the bushing (2), and rollers (3) disposed between the bushing (2) and a crankshaft (6), wherein the rollers (3) are arranged in a plurality of rows, and the retaining rings (5) are located at both ends of the rollers (3), characterized in that, Also includes: A retaining ring (4) is provided between rollers (3) in adjacent columns.

2. A roller bearing for a crankshaft according to claim 1, characterized in that, The outer diameter of the retaining ring (4) is not greater than the inner diameter of the bushing (2).

3. A roller bearing for a crankshaft according to claim 2, characterized in that, The outer diameter of the retaining ring (4) abuts against the inner circular surface of the bushing (2).

4. A roller bearing for a crankshaft according to claim 1, characterized in that, The width of the retaining ring (4) is not less than half the diameter of the roller (3).

5. A roller bearing for a crankshaft according to claim 1, characterized in that, The thickness of the retaining ring (4) is not less than 1 mm.

6. A roller bearing for a crankshaft according to any one of claims 1 to 5, characterized in that, The retaining ring (4) is also disposed between the roller (3) and the retaining ring (5).

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