Gear device for railway vehicle

A technology for gear devices and railway vehicles, which is applied to transmission parts, gear lubrication/cooling, belts/chains/gears, etc., and can solve problems such as cumbersome maintenance

Pending Publication Date: 2021-06-29
TOYO DENKI SEIZO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the oil seal is a consumable item and needs to be replaced, which presents a problem that maintenance becomes cumbersome

Method used

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  • Gear device for railway vehicle
  • Gear device for railway vehicle
  • Gear device for railway vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] refer to figure 1 , The railway vehicle gear device according to the embodiment of the present invention includes a gear case 1 . In the gear box 1, a pinion gear 3 and a bull gear 5 are housed in a state of meshing with each other in the horizontal direction. The pinion gear 3 is composed of a helical gear and is fixed to a drive source not shown in the figure. Input shaft 2 driven in rotation (see image 3 ), the large gear 5 is composed of a helical gear, and is fixed to the axle 4. refer to figure 2 , image 3 A pair of input shaft bearings 6 and 6 for supporting the input shaft 2 and a pair of axle shaft bearings for supporting the axle 4 are installed on the side wall parts 11 and 11 on both axial sides of the gearbox 1 . Bearing 7,7. Specifically, an opening 111 concentric with the input shaft 2 and larger in diameter than the pinion gear 3 , and an opening 112 concentric with the axle 4 and smaller in diameter than the bull gear 5 are formed in each side w...

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PUM

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Abstract

The invention provides a gear device for a railway vehicle. A pinion gear fixed to an input shaft and a bull gear fixed to an axle are housed in a gear case in a state in which the pinion gear and the bull gear mesh with each other in the horizontal direction, and a bearing for the input shaft and a bearing for the axle are attached to side wall portions on both sides in the axial direction of the gear case. The upper surface of the gear box is provided with a box cover (8) for covering the formed opening, and the box cover is provided with a pair of protruding parts (81) and (82), and the pair of protruding parts are located at the portion, opposite to vicinity of the one end in the circumferential direction, of the upper portion of the large gear protruding upwards from the opening, and the portion, opposite to the vicinity of the other end in the circumferential direction, of the upper portion of the large gear. The interval between the pair of protruding parts and the addendum circle of the large gear is shortened. It is possible to suppress the following situation that a large amount of lubricating oil flows down from a tank cover to an arrangement portion of the bearing for the axle on one side in the axial direction due to a movement component applied to the lubricating oil rising by the bull gear and facing the one side in the axial direction.

Description

technical field [0001] The present invention relates to a gear device for railway vehicles comprising a gear box, in which a pinion gear and a The large gear, wherein the pinion gear is fixed to the input shaft that is rotationally driven by the drive source, the large gear is fixed to the axle, and the bearings for the input shaft and the Bearings for axles. Background technique [0002] As is well known, conventionally, as such a gear device for railway vehicles, an opening on an upper surface into which a large gear can be inserted from above is formed in a gear case, and a case cover ( For example, refer to Patent Document 1). In this gear unit, the case cover is formed in a shape recessed upward so as to be able to receive the upper portion of the large gear protruding upward from the opening of the upper surface of the gear case. In addition, according to the gear device for railway vehicles, the lubricating oil remaining in the lower part of the gearbox can be lift...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/04F16H57/02F16H57/031
CPCF16H57/02F16H57/031F16H57/0424F16H2057/02043
Inventor 神长史人
Owner TOYO DENKI SEIZO KK
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