Integrated planetary gear shaft
A technology for planetary gear shafts and planetary gears, applied in gear lubrication/cooling, belts/chains/gears, shafts, etc., can solve problems such as poor lubrication performance, difficult inner hole surface coverage with lubricating oil, poor lubrication of sliding bearings, etc., to achieve Improved lubricating performance and service life, ease of assembly, and improved usability
Pending Publication Date: 2021-09-28
金铂睿动力科技无锡有限公司
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Problems solved by technology
[0003] At least the following defects exist in the related art at present: the lubrication of the sliding bearing is poor, and the cooperation between the sliding bearing and the planetary gear shaft, the sliding bearing and the planetary gear is a clearance fit, so the inner and outer cylindrical surfaces of the sliding bearing all need to be lubricated, and the inner hole of the sliding bearing is Oil is lubricated by radial oil holes, but this structure is difficult to ensure that the entire inner hole surface can be evenly covered with lubricating oil, and the lubrication of the outer circular surface only depends on the installation gap to allow lubricating oil to enter, and its lubricating performance is even worse
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0033] Such as figure 1 Shown is an integrated planetary gear shaft, including a planetary shaft body 7 and a sliding bearing 8, and the planetary shaft body 7 is fixedly connected to the sliding bearing 8; the inside of the planetary shaft body 7 has a radial oil hole 701 and an axial oil hole 702 , the radial oil hole 701 runs throug...
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Abstract
The invention discloses an integrated planetary gear shaft. The integrated planetary gear shaft comprises a planetary shaft body and a sliding bearing, and the planetary shaft body is fixedly connected with the sliding bearing; a radial oil hole and an axial oil hole are formed inside the planetary shaft body, and the radial oil hole penetrates through the planetary shaft body and extends to penetrate through the sliding bearing; one end of the axial oil hole is positioned at the journal end part of the planetary shaft body, and the other end of the axial oil hole is in communication with the radial oil hole; and the peripheral wall of the sliding bearing is provided with a first tangent plane and a second tangent plane, and the first tangent plane and the second tangent plane are perpendicular to the radial oil hole. According to the integrated planetary gear shaft, the sliding bearing is good in lubricating performance, easy to assemble and ingenious in structural design, the practicability of a product is greatly improved, and the service life of the product is greatly prolonged.
Description
technical field [0001] The invention belongs to the technical field of construction machinery, and in particular relates to an integrated planetary gear shaft. Background technique [0002] For the planetary reducer used in construction machinery, the load characteristic of the planetary gear system near the output end is low speed and high load. At present, the bearing between the planetary gear and the planetary shaft under this load condition mainly adopts a sliding bearing. [0003] At least the following defects exist in the related art at present: the lubrication of the sliding bearing is poor, and the cooperation between the sliding bearing and the planetary gear shaft, the sliding bearing and the planetary gear is a clearance fit, so the inner and outer cylindrical surfaces of the sliding bearing all need to be lubricated, and the inner hole of the sliding bearing is Oil is lubricated by radial oil holes, but this structure is difficult to ensure that the entire inn...
Claims
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IPC IPC(8): F16H57/04F16H57/08F16C3/02F16C33/08F16C33/10F16C33/12B23P15/14
CPCF16H57/0486F16H57/0471F16H57/043F16H57/08F16C3/02F16C33/08F16C33/1055F16C33/121B23P15/14F16H2057/085F16C2204/14
Inventor 贾广利范兆方赵慧
Owner 金铂睿动力科技无锡有限公司