力士乐齿轮泵PGH4-20/040RE11VE4产品说明

力士乐齿轮泵PGH4-20/040RE11VE4是维特锐集团专业供应的产品！力士乐齿轮泵PGH4-20/040RE11VE4的订货代码是R900932162！力士乐齿轮泵PGH4-20/040RE11VE4可提供原装专业供应！我们希望更多客户前来咨询了解力士乐齿轮泵PGH4-20/040RE11VE4！下面是相关的力士乐齿轮泵PGH4-20/040RE11VE4产品技术资料！希望得到你的认可！

力士乐齿轮泵PGH4-20/040RE11VE4特点固定排量
低操作噪音
低流量脉动
由于密封间隙补偿，在低速和粘性下也具有率
适用于宽粘度和速度范围
所有框架尺寸和尺寸可以任意组合
力士乐齿轮泵PGH4-20/040RE11VE4可与内齿轮泵，径向柱塞泵和外齿轮泵组合使用

Product description

力士乐齿轮泵PGH4-20/040RE11VE4齿轮系统
力士乐齿轮泵PGH4-20/040RE11VE4的齿是渐开线齿系。 力士乐齿轮泵PGH4-20/040RE11VE4其大的啮合长度导致很小的流量和压力脉动; 力士乐齿轮泵PGH4-20/040RE11VE4这些小的脉动率显着地有助于低噪声运行。
力士乐齿轮泵PGH4-20/040RE11VE4属于PGH型液压泵是固定排量的间隙补偿内齿轮泵。 力士乐齿轮泵PGH4-20/040RE11VE4流体动力安装的小齿轮轴驱动内齿轮。 力士乐齿轮泵PGH4-20/040RE11VE4在吸入范围中开口的小齿轮轴和内齿轮齿隙吸入液压流体并将其输送到压力范围。 力士乐齿轮泵PGH4-20/040RE11VE4吸力和压力范围由径向补偿元件和内齿轮和小齿轮轴之间的齿啮合分开。

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 F_A 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 F_R 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.