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Hub reduction gear and heavy dumper

A wheel-side reducer and wheel hub technology, which is applied to gear transmissions, belts/chains/gears, vehicles with inclined bearing motion, etc. The effect of low maintenance costs

Pending Publication Date: 2021-12-10
CHANGZHOU RUITAI ENG MASCH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention includes, for example, to provide a wheel speed reducer, which can improve the technical problems in the prior art that the secondary sun gear is easy to wear and the maintenance cost is high

Method used

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  • Hub reduction gear and heavy dumper
  • Hub reduction gear and heavy dumper
  • Hub reduction gear and heavy dumper

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0032] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The embodiment of the invention provides a hub reduction gear and a heavy dumper, and relates to the technical field of engineering machinery. The hub reduction gear comprises a rack, a first-stage planetary gear train and a second-stage planetary gear train, and the first-stage planetary gear train and the second-stage planetary gear train are both installed in the rack. The second-stage planetary gear train comprises a second-stage sun gear and a second-stage planet carrier, the second-stage sun gear is in transmission connection with the first-stage planetary gear train, a first spline is arranged at the end, away from the first-stage planetary gear train, of the second-stage sun gear, a spline housing is installed on the first spline, and the spline housing is rotatably supported on the second-stage planet carrier through a first bearing; and in this way, floating supporting of the second-stage sun gear is achieved, space can be provided for floating of the second-stage sun gear through matching of the first spline and the spline housing, the problem that the second-stage sun gear is abraded is solved, abrasion of the second-stage sun gear is transferred to the position of the spline housing, even if the spline housing is abraded, only the spline housing needs to be replaced, and the maintenance cost is low.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a wheel-side reducer and a heavy-duty dump truck. Background technique [0002] On heavy-duty trucks, off-road vehicles or large trucks, when a larger main transmission ratio and a larger ground clearance are required, the second-stage reducer gear mechanism in the final drive is often made into the same two sets, The ones installed next to the drive wheels on both sides are called wheel reducers. [0003] At present, the wheel reducer, especially in the wheel reducer used in heavy-duty electric drive dump trucks, the secondary sun gear is prone to wear and tear problems. After the secondary sun gear has wear problems, the secondary sun gear needs to be replaced. Not only time-consuming and labor-intensive, but also high maintenance costs. Contents of the invention [0004] The purpose of the present invention includes, for example, to provide a wheel speed redu...

Claims

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Application Information

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IPC IPC(8): F16H1/32F16H1/36F16H55/17F16H57/08F16H57/029F16B21/10B60P1/04
CPCF16H1/32F16H1/36F16H55/17F16H57/08F16H57/029F16B21/10B60P1/04F16H2057/02043F16H2001/327F16H2001/324F16H1/321
Inventor 徐莎汪星张再利段振中王伟康
Owner CHANGZHOU RUITAI ENG MASCH CO LTD
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