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Maintenance and maintenance of hydraulic pumps and motors

Before installing the test drive, the fuel tank, piping, actuators (such as oil cylinders) and valves must be cleaned. The new oil poured into the fuel tank must be filtered by the oil filter to prevent oil contamination caused by the oil drum being unclean.

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Axial piston pump

The plunger pump uses a plunger and a cylinder block as main working members. When the plunger reciprocates in the plunger hole of the cylinder block, a volume change occurs in the closed working volume formed by the plunger and the cylinder bore, and the suction and discharge processes are completed.

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2019

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04

A7V series inclined shaft variable displacement piston pump

The 7V variable displacement piston pump has the advantages of high pressure, small volume, light weight, high speed and impact resistance. The transmission shaft can withstand a certain radial load. The oil suction pressure (open type) is 0.09 to 0.15 MPa. Applicable to construction machinery and open hydraulic systems for rolling mills, forging, mining, lifting, ships and other machinery. It has five variable types: constant power variable (LV), constant voltage (DR), electronic control proportional variable (EP), hydraulic control variable (HD), and manual variable (MA).

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2019

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04

Hydraulic press plunger pump repair

Inhalation resistance is large; if the oil level of the fuel tank is too low, the suction filter is clogged. The suction pipe is too long and the elbow is too much, resulting in a large loss of resistance along the oil suction passage and insufficient output flow.

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2019

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04

Hydraulic piston pump use and maintenance

The efficiency of the hydraulic system depends mainly on the volumetric efficiency of the hydraulic pump. When the volumetric efficiency drops to 72%, routine maintenance, replacement of bearings and aging seals are required, and friction pairs that exceed the fit clearance are replaced or repaired. Get restored. This article focuses on the swash plate piston pump, which describes its use and maintenance methods.

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2019

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04

Development of inclined shaft piston pump

Development of the inclined-axis piston pump In recent years, the development trend of the axial piston pump has shown the following new features.

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2019

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Qidong Deke Hydraulic Co., Ltd.

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Qidong Deke Hydraulic Machinery Factory

Deye Power Transmission Technology (Qidong) Co., Ltd.

Tel：+86-513-83689509

Cell-phone number：+86-18962820125

E-mail：qddeke@163.com
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Add：Chengdong Industrial Park, Huilong Town, Qidong, Nantong, Jiangsu,China
 

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