Damping type plunger pump
A plunger pump and plunger technology, which is applied in the field of agricultural spraying equipment, can solve the problems of no market prospect and no high-power electric sprayer, and achieve the effect of reducing pulsation
Active Publication Date: 2017-04-26
FUSITE CO LTD
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Problems solved by technology
Based on the electric motor driven plunger pump + 48V lithium battery / lead battery in the current market, the pressure of the plunger pump is calculated as 3.0MPA and the flow rate is 8LPM according to the standard, so the hydraulic rate needs to be 3.0MPa×8 / 60=400W. Considering the pump The mechanical efficiency and motor efficiency are generally 70%, the motor power rate is 500-600W, and the battery 48V must be above 60AH to work for 2-3 hours. The weight of the above configuration is above 30KG and the cost is above 2000 RMB, which is currently 5.5HP The gasoline engine is equipped with FST-22 plunger pump (the factory price of the whole machine is calculated at 500 yuan, the injection volume is 15-20LPM, the pressure is 4MPa, and the power of the gasoline engine is 5.5HP); it can be said that this technical solution has almost no market prospect, which is the current situation The main reason why high-power electric sprayers are not marketed
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[0018] Below in conjunction with accompanying drawing, the present invention will be further described with specific embodiment, see figure 1 :
[0019] A shock-absorbing plunger pump, including a non-closed annular plunger 5, which can rotate clockwise / counterclockwise under the drive of the surrounded electromagnetic coil 1, and the annular column The two free ends of the plug 5 are respectively matched in the two pressure chambers (12.1 / 12.2) of the cylinder body, and the two pressure chambers (12.1 / 12.2) are symmetrically distributed about the center of the cylinder body 6, and the water inlet chamber 3 of the cylinder body 6 is connected to the The two pressure chambers (12.1 / 12.2), the drain chamber 8 and the two pressure chambers (12.1 / 12.2) are blocked by the water inlet valve (4.1 / 4.2) and the water outlet valve (7.1 / 7.2) respectively.
[0020] Preferably, the annular plunger 5 is installed in a copper oil-impregnated bearing, and the bearing is embedded in the elect...
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The invention discloses a damping type plunger pump which adopts a circular-ring-shaped linear motor drive technology. The damping type plunger pump comprises a special circular-ring-shaped plunger piston which can be driven by a coil surrounded by the special circular-ring-shaped plunger piston to rotate clockwise / anticlockwise in the circumferential direction; a water inlet chamber and a water outlet chamber are integrated, so that system problems such as vibration generated when an existing single-plunger-piston double-cylinder pump moves the plunger piston left and right are reduced; moreover, the plunger piston is embedded into a circular-arc-type drive coil, so that the plunger piston and the drive coil are supported by a copper oil-containing bearing; a water inlet chamber assembly and a water outlet chamber assembly are integrated and are arranged in a centrosymmetric mode, so that high-pressure outlet water with pulsation is mixed in the water outlet chamber or a high-pressure gas chamber is added, and therefore, pulsation of final outlet water is reduced.
Description
technical field [0001] The invention belongs to the technical field of agricultural spraying equipment, in particular to a shock-absorbing plunger pump. Background technique [0002] At present, the driving method of agricultural single-piston double-cylinder pumps is mostly a small gasoline engine, and the driving method is that the small gasoline engine drives the plunger to reciprocate left and right through the reduction gearbox; since the structure of the pump is symmetrically arranged left and right, the plunger reciprocates left and right. Vibration is unavoidable during exercise, and the discharge chamber and water inlet chamber of the pump are separated at both ends, and the pulsation phenomenon of water flow is also a systematic cause. [0003] Since the double-cylinder plunger pump with this structure is mostly used in the knapsack jetting machine at present, the vibration and noise of the gasoline engine are superimposed on the vibration of the pump, so the labor...
Claims
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IPC IPC(8): F04B17/04F04B53/14F04B53/00
CPCF04B17/04F04B53/00F04B53/14
Inventor 陈建康林夏满
Owner FUSITE CO LTD