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A Gear Pump with Reduced Power Loss

A power loss and gear pump technology, applied in the field of machinery, can solve the problems of reducing the working reliability of gears, shortening the service life of gears, and aggravating gear wear, so as to improve tempering stability and tempering temperature, eliminate quenching stress, and improve The effect of toughness

Active Publication Date: 2019-03-22
SAIKESI HYDRAULIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the gears of the gear pump are subjected to a large force during the transmission process and are prone to wear; moreover, the existing gear pumps vibrate greatly during use, which makes the pump body noisy, and further aggravates the wear of the gears, which greatly Reduce the reliability of the gear work and shorten the service life of the gear

Method used

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  • A Gear Pump with Reduced Power Loss

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The gear pump for reducing power loss in this embodiment includes a casing and a gear, and the gear includes a gear base and a wear-resistant layer coated on the gear base.

[0030] Among them, the gear matrix includes the following components by mass percentage: 0.15%C, 0.17%Si, 0.50%Mn, 0.80%Cr, 0.6%Ni, 0.5%Cu, 0.1%Ag, 0.1%Gd, 0.01%P, 0.01% %S, 0.03% Mo, 5.5% silicate whiskers, 3.6% porous calcium carbonate, the balance is Fe, the length of silicate whiskers is 5-10μm, the aspect ratio is 20-35, the porous calcium carbonate The particle size is 2-5μm, and the pore size is 20-38nm.

[0031] The thickness of the wear-resistant layer is 6 μm, which is formed by coating the gear substrate with wear-resistant emulsion. The wear-resistant emulsion includes the following components in mass percentage: 36% PVC emulsion, 5.0% nano-Si 3 N 4 , 6.3% chromium oxide, 7.0% silane coupling agent, 10% porous chitosan microspheres, 0.3% active agent lecithin, the balance is distilled...

Embodiment 2

[0034] The difference from Example 1 is that the gear matrix in this example includes the following components by mass percentage: 0.2%C, 0.28%Si, 0.7%Mn, 0.9%Cr, 0.8%Ni, 0.6%Cu, 0.3%Ag, 0.2%Gd, 0.02%P, 0.02%S, 0.06%Mo, 6.5% silicate whiskers, 4.3% porous calcium carbonate, the balance is Fe, the length of silicate whiskers is 5-10μm, the aspect ratio 20-35, the particle size of porous calcium carbonate is 2-5μm, and the pore size is 20-38nm.

Embodiment 3

[0036]The difference from Example 1 is that the gear matrix in this example includes the following components by mass percentage: 0.2%C, 0.28%Si, 0.7%Mn, 0.9%Cr, 0.8%Ni, 0.6%Cu, 0.4%Ag, 0.2%Gd, 0.02%P, 0.02%S, 0.06%Mo, 6.5% silicate whiskers, 4.3% porous calcium carbonate, the balance is Fe, the length of silicate whiskers is 5-10μm, the aspect ratio 20-35, the particle size of porous calcium carbonate is 2-5μm, and the pore size is 20-38nm.

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Abstract

The invention relates to a gear pump reducing the power loss and belongs to the technical field of machines. The gear pump comprises a shell and a gear; the gear comprises a gear base body and an abrasion-resistant layer coated on the gear base body; the gear base body comprises, by mass percentage, 0.15-0.25% of C, 0.17-0.37% of Si, 0.50-0.80% of Mn, 0.80-1.10% of Cr, 0.6-0.9% of Ni, 0.5-0.7% ofCu, 0.1-0.5% of Ag, 0.1-0.2% of Gd, smaller than or equal to 0.030% of P, smaller than or equal to 0.030% of S, smaller than or equal to 0.10% of Mo, 5.5-8.7% of silicate whiskers, 3.6-4.9% of porouscalcium carbonate and the balance Fe. The gear pump has the beneficial effects of being resistant to abrasion, capable of absorbing sound, reducing vibration and lowering noise and long in service life.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a gear pump for reducing power loss. Background technique [0002] A hydraulic pump is an important device that converts mechanical energy into fluid energy, and a gear pump is a hydraulic pump commonly used in hydraulic systems. There is a pair of gears with the same modulus and the same number of teeth in the pump body of the gear pump, and the two end covers of the gears are sealed by the pump cover. The tooth grooves of the pump body, the end cover and the gear form a sealed volume space. The meshing line of the two gears along the tooth width direction divides the sealed volume into two parts: the oil suction chamber and the oil pressure chamber, and they are mutually independent during the oil suction and oil pressure processes. connected. When the gear rotates, the oil suction chamber is gradually disengaged due to the gear, and the sealing volume increases, forming a par...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C2/08C09D127/06C09D7/61C09D7/65C21D1/18C21D9/00C22C49/08C22C49/14C22C101/08
CPCC08K2003/2251C08K2201/011C09D127/06C21D1/18C21D9/0068C22C49/08C22C49/14F04C2/084F04C2230/91C08L5/08C08K3/34C08K3/22
Inventor 高魏磊
Owner SAIKESI HYDRAULIC TECH CO LTD
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