Bi-directional rotating spherical pump cooling mechanism

Abstract

The invention discloses a bi-directional rotating spherical pump cooling mechanism. An inlet / discharging hole (101), a cylinder cover flow dividing channel (1005), a cylinder body flow dividing channel (1007) and a cylinder body flow guiding channel (1008) sequentially communicate with one another to form a flow dividing part of each cooling channel. A main shaft support flow guiding groove (1004), a cylinder body lower end flow returning channel (1011), a cylinder body upper end flow returning channel (1002), a cylinder cover flow returning channel (1001) and an inlet / discharging hole (101) sequentially communicate with one another to form a flow returning part of each cooling channel. A cylinder body is provided with switching valves. Each switching valve controls the on state of the corresponding cylinder body flow guiding channels (1008) and controls the corresponding cylinder body lower end flow returning channel (1011) to communicate with the corresponding cylinder body upper endflow returning channel (1002). The bi-directional rotating spherical pump cooling mechanism can be applied to cooling and lubricating under the circumstance that a spherical pump rotates forwards andbackwards; and meanwhile, the volume efficiency of the spherical pump is not lowered.

Description

technical field [0001] The patent of the present invention relates to the technical field of hydraulic pumps, in particular to a bidirectional rotary spherical pump cooling mechanism. Background technique [0002] The spherical pump is a variable capacity mechanism with a new structure newly invented in recent years. During the operation of the spherical pump, since the main moving parts such as the piston, turntable, and central shaft are in the flowing liquid, the heat generated during the operation Taken away by the continuously flowing liquid, the temperature of the friction pair of the piston, the turntable and the central shaft does not rise much, and no special cooling is required; The accumulation of liquid leaking from the spherical inner cavity cannot effectively cool the corresponding friction pair, resulting in excessive temperature of the main shaft sleeve, bearing, and upper moving part of the main shaft as the rotating radial friction pair of the main shaft. T...

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Problems solved by technology

[0002] The spherical pump is a variable capacity mechanism with a new structure newly invented in recent years. During the operation of the spherical pump, since the main moving parts such as the piston, turntable, and central shaft are in the flowing liquid, the heat generated during the operation Taken away by the continuously flowing liquid, the temperature of the friction pair of the piston, the turntable and the central shaft does not rise much, and no special cooling is required; The accumulation of liquid leaking from the spherical inner cavity cannot effectively cool the corresponding friction pair, resulting in excessive temperature of the main shaft sleeve, bearing, and upper moving part of the main shaft as the rotating radial friction pair of the main shaft. The patent number is CN201610266963.5, and the patent name The Chinese patent titled "Spherical Pump Cooling Mechanism" with patent number CN201610594749.2 and patent name "A Spherical Pump with Interstitial Cooling Function" proposed a corresponding technical solution for the cooling of the above-mentioned spherical pump, and achieved certain results. Technical effect, but the former can only achieve cooling for the spherical pump with one-way rotation, and cannot achieve cooling when the spherical pump is reversed; the biggest disadvantage of the latter is that the volumetric efficiency of the pump is sacrificed while achieving cooling

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