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Gearbox

A gearbox and box technology, applied in the field of gearboxes, can solve problems such as high gearbox noise, and achieve the effect of solving large noise, high meshing coincidence, and satisfying noise reduction.

Inactive Publication Date: 2016-07-27
GUANGXI LIUGONG MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a gearbox with low vibration and noise in view of the problem of large noise in the existing gearbox

Method used

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Embodiment Construction

[0020] The specific implementation will be described below in conjunction with the accompanying drawings.

[0021] In this embodiment, the gearbox is a planetary gearbox driven by a power take-off helical gear, such as figure 1 and figure 2 As shown, the transmission is composed of a twin-turbine torque converter, an overrunning clutch, a reverse clutch, a first-gear clutch, a second-gear clutch, a variable speed pump, a variable speed control valve and an output assembly, and can realize two forward gears and one reverse gear . The power take-off of the gearbox includes a transfer gear 2 and two power take-off shaft gears, namely a first power take-off shaft gear 3 and a second power take-off shaft gear 4 .

[0022] Such as image 3 and Figure 4 As shown, the two ends of the rotating shaft of each power take-off shaft gear are installed through the first thrust bearing 5-2 and the second thrust bearing 5-3, so that the power take-off shaft gear can be installed on the b...

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Abstract

The invention relates to gearboxes, aims to solve the problem that the noise of a conventional gearbox is high, and provides a gear box. The gearbox comprises a box body, wherein a double-turbine torque converter and a power take-off are arranged inside the box body; the power take-off comprises a transfer gear and at least one power takeoff shaft gear; the two ends of a rotating shaft of each power takeoff shaft gear are mounted on the box body through bearings; the transfer gear is fixedly connected with a pump impeller of the double-turbine torque converter; and the transfer gear and the power takeoff shaft gear are in meshing transmission through a helical cylinder gear. In the gearbox, the axial force generated by meshing of a helical gear pair between the transfer gear and the power takeoff shaft gear is easily absorbed by axially mounted parts such as the bearings and a locked spacer, and a power takeoff helical gear is steady in transmission and meshing, and low in noise.

Description

technical field [0001] The present invention relates to a transmission device, and more particularly, to a gearbox. Background technique [0002] The power take-off port of the working hydraulic system of the planetary gearbox of construction machinery loader is driven by a spur gear. The power is transmitted from the engine flywheel to the torque converter pump wheel. The shaft end is splined to the hydraulic pump. Since the bearings at both ends of the power take-off shaft gear are installed on two different boxes, it is difficult to ensure the parallelism between the axis of the power take-off shaft gear and the axis of the transfer gear in manufacturing and assembly; and the bearings of the transfer gear are not on the gear teeth On the force-bearing plane, there is a certain degree of cantilever at the force-bearing point, so the meshing error between the power take-off shaft gear and the transfer gear under load is relatively large, and the vibration and noise problem...

Claims

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Application Information

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IPC IPC(8): F16H57/021F16H57/022F16H57/028F16H47/06
CPCF16H57/021F16H47/06F16H57/022F16H57/028
Inventor 蒋仁科黄晓艳鄢万斌明君剑
Owner GUANGXI LIUGONG MASCH CO LTD
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