The invention relates to a stepless speed change general power chassis of a wheeled tractor. A diesel engine (7) is provided with a double-flow pump (30) capable of supplying oil to a hydrostatic transmission unit (20) and a lifter (13) at the same time; a transition box (21) and a hydrostatic transmission unit (20) arranged in the transition box (21) are arranged between the front gearbox assembly (23) and the rear gearbox assembly (15). The rear end of the hydrostatic transmission unit (20) is directly installed on the rear gearbox assembly (15), the front end of the hydrostatic transmission unit (20) is connected with the front gearbox assembly (23) through a nesting mechanism (28), and an HST control handle (11) and a pressing speed regulating mechanism (27) are arranged in the side direction of the hydrostatic transmission unit (20). The stepless speed change power chassis has the advantages that the HST is connected between the front gearbox and the rear gearbox in series, the stepless speed change power chassis is provided, the phenomenon that a clutch needs to be frequently stepped during gear shifting is avoided through buffering of the HST, and the service life of gears is greatly prolonged.
本发明涉及一种轮式拖拉机的无级变速通用动力底盘,柴油机(7)上设有可同时给静液压传动单元(20)和提升器(13)供油的双流泵(30);前后变速箱总成(23、15)之间设有过渡箱(21)和设于过渡箱(21)内的静液压传动单元(20);静液压传动单元(20)的后端直接安装在后变速箱总成(15)上,前端与前变速箱总成(23)之间通过嵌套机构(28)相连接,侧向设有HST操控手柄(11)和压紧调速机构(27)。其优点是,HST串联在前后变速箱之间,提供了无级变速动力底盘,通过HST的缓冲,避免了换挡时需频繁踩离合的现象,极大的提高了齿轮寿命。
HST stepless speed change universal power chassis suitable for intelligent gardening operation
一种适用于智能化园艺作业的HST无级变速通用动力底盘
2024-03-22
Patent
Electronic Resource
Chinese
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