AA4VS0180DR30R-PPB13N00 是恒壓變量泵是一種特殊的液壓泵，它能夠在系統(tǒng)壓力反饋值低于其調(diào)定壓力時，以最大流量進(jìn)行工作，一旦系統(tǒng)壓力達(dá)到或超過這一調(diào)定壓力，泵便能自動調(diào)節(jié)其輸出流量，以保持壓力的穩(wěn)定。這種泵在液壓系統(tǒng)中發(fā)揮著至關(guān)重要的作用，特別是在需要保持恒定壓力的場合。
恒壓變量泵通常由基泵與變量機(jī)構(gòu)組成，其中基泵一般采用傳遞效率高的柱塞泵，而變量機(jī)構(gòu)則采用內(nèi)控式。當(dāng)系統(tǒng)輸出壓力小于調(diào)壓彈簧調(diào)定的壓力時，柱塞泵的斜盤傾角最大，即泵以最大排量工作。當(dāng)系統(tǒng)輸出壓力達(dá)到彈簧調(diào)定壓力時，泵輸出的高壓油進(jìn)入恒壓控制閥，使得恒壓控制閥的閥芯移動，進(jìn)而改變變量缸體的位置，從而調(diào)節(jié)斜盤傾角，減小泵的排量。這樣，泵就能根據(jù)系統(tǒng)需求自動調(diào)整其輸出流量，以維持恒定的壓力。
恒壓變量泵在多種工業(yè)應(yīng)用中都發(fā)揮著重要作用，尤其是在那些執(zhí)行機(jī)構(gòu)長時間處于無位移或小位移狀態(tài)，同時需要在保壓狀態(tài)下工作的設(shè)備中。例如，冶金、礦山、工程機(jī)械等行業(yè)就廣泛使用了恒壓變量泵。在這些應(yīng)用中，恒壓變量泵能夠確保泵供流量與系統(tǒng)所需達(dá)到一致，從而實現(xiàn)高效節(jié)能，同時減少了高壓大流量系統(tǒng)的發(fā)熱。

AA4VS0180DR30R-PPB13N00

AA4VS0180DR30R-PPB13N00 Constant pressure variable pump is a special type of hydraulic pump, it can work at the maximum flow rate when the system pressure feedback value is lower than its set pressure, once the system pressure reaches or exceeds this set pressure, the pump can automatically adjust its output flow to maintain the stability of the pressure. Such pumps play a vital role in hydraulic systems, especially where constant pressure needs to be maintained.
The constant pressure variable pump is usually composed of a base pump and a variable mechanism, of which the base pump generally uses a plunger pump with high transfer efficiency, and the variable mechanism uses an internal control type. When the system output pressure is less than the pressure adjusted by the pressure regulating spring, the swash plate inclination Angle of the plunger pump is the largest, that is, the pump works at the maximum displacement. When the output pressure of the system reaches the spring set pressure, the high pressure oil output by the pump enters the constant pressure control valve, which makes the spool of the constant pressure control valve move, and then changes the position of the variable cylinder block, so as to adjust the tilt Angle of the swash plate and reduce the displacement of the pump. This allows the pump to automatically adjust its output flow according to system requirements to maintain a constant pressure.
Constant pressure variable pumps play an important role in a variety of industrial applications, especially in those devices where the actuator is in a non-displacement or small displacement state for a long time and needs to work in a maintained pressure state. For example, constant pressure variable pump is widely used in metallurgy, mining, construction machinery and other industries. In these applications, constant pressure variable pumps ensure that the pump supply flow is consistent with the system requirements, thus achieving high energy efficiency and reducing heat generation in high pressure high flow systems.

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