Slew reducer for excavator

A technology for slewing reducers and excavators, which is applied to mechanical equipment, transmission parts, gear transmissions, etc., can solve problems such as poor working conditions of slewing reducers, facilitate daily inspection and maintenance, reduce volume, and increase wall thickness Effect

Active Publication Date: 2016-08-24
XUZHOU KEYUAN HYDRAULIC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the key equipment of the excavator, the slewing mechanism plays a vital role in the reliability of the whole machine. The slewing mechanism is usually composed of a slewing bearing, a slewing reducer and a hydraulic motor. Because it is suitable for the working conditions of the slewing reducer on the excavator Poor, the existing slewing reducer is generally only suitable for truck cranes, crawler cranes and other occasions that do not require high working conditions

Method used

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  • Slew reducer for excavator
  • Slew reducer for excavator
  • Slew reducer for excavator

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Embodiment Construction

[0018] Below in conjunction with embodiment the present invention is further described.

[0019] like figure 1 A rotary reducer for an excavator is shown, which is mainly composed of a hydraulic motor 10, a multi-stage planetary gear reduction mechanism, a gear shaft 1-1 and an output gear 1 connected in order from top to bottom. The multi-stage planetary gear reduction mechanism includes a ring gear 5 which doubles as a casing. A motor connection plate 9 is connected between the upper end of the ring gear 5 and the hydraulic motor 10. The lower end of the ring gear 5 is connected to a bearing seat 2. The motor connection plate 9. The ring gear 5 and the bearing seat 2 are rigidly connected to form an airtight housing. The output shaft of the hydraulic motor 10 is rigidly connected to the input stage of the multi-stage planetary gear reduction mechanism. The output of the multi-stage planetary gear reduction mechanism The stage is rigidly connected with the gear shaft 1-1, an...

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Abstract

The invention discloses a slewing reducer for excavators and belongs to the technical field of excavators. The slewing reducer is formed by connecting a hydraulic motor, a multi-stage planetary gear reducing mechanism and an output gear in sequence from top to bottom. The multi-stage planetary gear reducing mechanism comprises a gear ring, a motor connection plate, the gear ring and a bearing block are rigidly connected to form a sealed shell, an output shaft of the hydraulic motor is rigidly connected with an input stage of the multi-stage planetary gear reducing mechanism, and an output stage of the multi-stage planetary gear reducing mechanism is rigidly connected with a gear shaft. Since a needle bearing and a sliding bearing without inner or outer ring retainers are adopted to the inner planetary gear bearings and an oil scale is arranged on the connecting plate, the slewing reducer is compact in structure after mounting, high in bearing capacity, high in impact resistance and convenient for daily check and maintenance.

Description

technical field [0001] The invention relates to a rotary reducer suitable for an excavator, belonging to the technical field of excavators. Background technique [0002] At present, excavators can not only be used for excavating earth, but also widely used in building demolition, concrete pavement crushing and other occasions by replacing buckets with rock drilling devices. Due to its wide range of uses, its working conditions are very harsh. As the key equipment of the excavator, the slewing mechanism plays a vital role in the reliability of the whole machine. The slewing mechanism is usually composed of a slewing bearing, a slewing reducer and a hydraulic motor. Because it is suitable for the working conditions of the slewing reducer on the excavator Harsh, the existing slewing reducer is generally only suitable for occasions such as truck cranes and crawler cranes that do not require high working conditions. The operating conditions of the slewing device on the excavator...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H1/28F16H57/021F16H57/02
CPCF16H47/04F16H57/043F16H57/0449F16H57/08
Inventor 韩永进刘安韩华袁朝国
Owner XUZHOU KEYUAN HYDRAULIC
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