Spline lubricating structure

A lubricating structure and spline technology, applied in the transmission field, can solve the problems of inability to guarantee the oil quantity of the spline, the failure rate of the spline is increased, and the lubrication of the spline is not ideal, so as to achieve a simple structure, good lubrication effect, and simplify the lubrication oil path Effect

Inactive Publication Date: 2012-01-11
CHONGQING GEARBOX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This has the following problems: First, the sun gear 2 is a rotating part, and there is a centrifugal force at the outer circle when it is running. This centrifugal force will easily throw the lubricating oil flowing to the spline on the outer circle of the sun gear 2 away from the sun gear 2, which cannot be guaranteed. Oil quantity required for spline lubrication
In this structure, since the lubricating oil is squeezed into the adjacent oil groove during the transmission process, the lubrication of the spline is still not ideal, and this structure cannot effectively cool the lubricating oil. In the case of power transmission, the failure rate of splines is significantly enhanced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: as figure 1 and figure 2 As shown, a spline lubricating structure is used for the gearbox transmission of a rolling machine, including a spline shaft 2 and a spline sleeve 6 that cooperate with each other. The spline shaft 2 is provided with an inner hole 7 and a radial oil hole 10 . The number of oil holes 10 is equal to the number of tooth grooves of the spline shaft 2 , and are evenly distributed along the circumferential direction of the inner hole 7 . The oil inlet of each oil hole 10 is arranged in the inner hole 7, and the oil outlet is respectively arranged at each tooth groove 2a.

[0035] When the spline shaft 2 is working, it rotates and injects lubricating oil into the inner hole 7. The lubricating oil flows from one end of the inner hole 7 to the other. Due to the centrifugal force, when the lubricating oil passes through the oil inlet of the oil hole 10, it is thrown away. Into the oil hole 10, so as to flow into the tooth groove 2a of th...

Embodiment 2

[0036] Embodiment 2: as image 3 As shown, the structure of this embodiment is basically the same as that of Embodiment 1, the difference is that an oil collector ring groove 11 is provided at the oil inlet corresponding to the oil hole 10 .

[0037] Other structures and working principles of this embodiment are the same as those of Embodiment 1. Due to the setting of the oil collecting ring groove 11, when the lubricating oil flows through the oil collecting ring groove 11, it will accumulate in the oil collecting ring groove 11 to form a certain liquid level height, which is beneficial for the lubricating oil to be thrown into the oil hole 10, Achieve more adequate oil supply.

Embodiment 3

[0038] Embodiment 3: as Figure 4 and Figure 5 As shown, a spline lubrication structure is used in a planetary gearbox, including a spline shaft 2 and a spline sleeve 6 that cooperate with each other. The spline shaft 2 is provided with an inner hole 7 , and an oil collector ring groove 11 is arranged in the inner hole 7 . The spline sleeve 6 is provided with a ring groove 9, and the spline shaft 2 and the spline sleeve 6 correspond to the ring groove 9 to form an oil collection chamber 14. The spline shaft 2 is provided with three sections of oil holes connected end to end, the oil holes at two adjacent ends are perpendicular to each other, and the oil passages 10 are formed by the three sections of oil holes. The oil inlet of the oil passage 10 is arranged at the oil collecting ring groove 11 , and the oil outlet is arranged at the oil collecting chamber 14 .

[0039] The working principle of this embodiment is basically the same as that of Embodiment 2. The difference i...

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Abstract

The invention disclose a spline lubricating structure comprising a spline shaft (2) and a spline hub (6) which are matched with each other. The spline lubricating structure is characterized in that the spline shaft (2) is provided with an inner hole (7) and an oil duct (10); and the oil duct (10) is communicated with the inner hole (7) and each tooth socket (2a) of the spline shaft (2). The spline lubricating structure provided by the invention is simple in structure, convenient to process and good in lubricating effect and can be used for providing sufficient lubricating oil for a spline, cooling the lubricating oil better, prolonging the service life of the spline, simultaneously omitting parts such as an oil thrower and the like and simplifying the lubricating oil duct.

Description

technical field [0001] The invention relates to the technical field of transmission, in particular to a spline lubricating structure. Background technique [0002] At present, the sun gear spline in the domestic wind power speed-up planetary transmission generally adopts the attached Figure 11 In the lubricating device shown, oil is sprayed from the oil supply ring 1 to the outer circle of the sun gear 2, and the lubricating oil flows along the outer circle of the sun gear 2 to the spline end. This has the following problems: First, the sun gear 2 is a rotating part, and there is a centrifugal force at the outer circle when it is running. This centrifugal force will easily throw the lubricating oil flowing to the spline on the outer circle of the sun gear 2 away from the sun gear 2, which cannot be guaranteed. The amount of oil required for spline lubrication. Secondly, the pressure plate 3, which plays an axial positioning role for the sun gear 2, may be crushed to death ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D1/06F16N1/00
CPCF16D1/10F16D2001/103F16D2300/06
Inventor 陈冬赵俊渝黄永平白博海杜木信
Owner CHONGQING GEARBOX
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