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力士樂(lè)齒輪泵PGH4-20/040RE11VE4產(chǎn)品說(shuō)明
發(fā)布時(shí)間： 2016-11-14 點(diǎn)擊次數(shù)： 1569次
力士樂(lè)齒輪泵PGH4-20/040RE11VE4是維特銳集團(tuán)專(zhuān)業(yè)供應(yīng)的產(chǎn)品！力士樂(lè)齒輪泵PGH4-20/040RE11VE4的訂貨代碼是R900932162！力士樂(lè)齒輪泵PGH4-20/040RE11VE4可提供原裝專(zhuān)業(yè)供應(yīng)！我們希望更多客戶前來(lái)咨詢了解力士樂(lè)齒輪泵PGH4-20/040RE11VE4！下面是相關(guān)的力士樂(lè)齒輪泵PGH4-20/040RE11VE4產(chǎn)品技術(shù)資料！希望得到你的認(rèn)可！
力士樂(lè)齒輪泵PGH4-20/040RE11VE4特點(diǎn)固定排量
低操作噪音
低流量脈動(dòng)
由于密封間隙補(bǔ)償，在低速和粘性下也具有率
適用于寬粘度和速度范圍
所有框架尺寸和尺寸可以任意組合
力士樂(lè)齒輪泵PGH4-20/040RE11VE4可與內(nèi)齒輪泵，徑向柱塞泵和外齒輪泵組合使用Product description
力士樂(lè)齒輪泵PGH4-20/040RE11VE4齒輪系統(tǒng)
力士樂(lè)齒輪泵PGH4-20/040RE11VE4的齒是漸開(kāi)線齒系。 力士樂(lè)齒輪泵PGH4-20/040RE11VE4其大的嚙合長(zhǎng)度導(dǎo)致很小的流量和壓力脈動(dòng); 力士樂(lè)齒輪泵PGH4-20/040RE11VE4這些小的脈動(dòng)率顯著地有助于低噪聲運(yùn)行。
力士樂(lè)齒輪泵PGH4-20/040RE11VE4屬于PGH型液壓泵是固定排量的間隙補(bǔ)償內(nèi)齒輪泵。 力士樂(lè)齒輪泵PGH4-20/040RE11VE4流體動(dòng)力安裝的小齒輪軸驅(qū)動(dòng)內(nèi)齒輪。 力士樂(lè)齒輪泵PGH4-20/040RE11VE4在吸入范圍中開(kāi)口的小齒輪軸和內(nèi)齒輪齒隙吸入液壓流體并將其輸送到壓力范圍。 力士樂(lè)齒輪泵PGH4-20/040RE11VE4吸力和壓力范圍由徑向補(bǔ)償元件和內(nèi)齒輪和小齒輪軸之間的齒嚙合分開(kāi)。Set-up
Hydraulic pumps of type PGH are gap-compensated internal gear pumps with constant displacement.
They basically comprise of housing (1.1), bearing cover (1.2), internal gear (2), pinion shaft (3), plain bearings (4), axial washers (5), end cover (6), mounting flange (7) and stop pin (8), as well as the segment filler element (9) consisting of segment (9.1), segment support (9.2) and the seal rolls (9.3).
Suction and displacement procedure
The hydrodynamically supported pinion shaft (3) drives the internally geared internal gear (2) in the displayed direction of rotation.
During the rotation, there is a volume increase over an angle of approx. 90° in the suction range. An underpressure results and fluid flows into the chambers.
The sickle-shaped segment filler element (9) separates suction and pressure chamber. In the pressure chamber, the teeth of the pinion shaft (3) engage in the space between the teeth of the internal gear (2) again. The liquid is displaced via the pressure channel (P).
Axial compensation
The axial compensation force FA takes effect in the area of the pressure chamber and is generated with the pressure field (10) in the axial washers (5).
So the axial longitudinal gaps between the rotating and the fixed parts are extraordinarily small and ensure perfect axial sealing of the pressure chamber.
Radial compensation
The radial compensation force FR acts on segment (9.1) and segment support (9.2).
Dependent on the operating pressure, the two segment filler elements (9.1) and (9.2) are pressed against the head diameters of pinion shaft (3) and internal gear (2).
The area ratios and the position of the seal rolls (9.3) between the segment and segment support are designed so that an almost leakage gap-free sealing between internal gear (2), segment filler element (9) and pinion shaft (3) is achieved.
Spring elements under the seal rolls (9.3) ensure sufficient contact pressure, also with very low pressures.
Hydrodynamic and hydrostatic mounting
The forces acting on the pinion shaft (3) are accepted by hydrodynamically lubricated radial plain bearings (4); the forces acting on the internal gear (2) by the hydrostatic bearing (11).
Gear tooth system
The toothing is an involute tooth system. Its large meshing length results in little flow and pressure pulsation; these little pulsation rates considerably contribute to the low-noise running.
PGH-type hydraulic pumps are gap-compensated internal gear pumps with fixed displacement. The hydrodynamically mounted pinion shaft drives the internal gear. The pinion shaft and internal gear tooth clearances opening in the suction range suck in the hydraulic fluid and transport it to the pressure range. The suction and pressure range are separated by the radial compensation elements and the tooth engagement between the internal gear and pinion shaft.
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