JPS62165492U

JPS62165492U -

Info

Publication number: JPS62165492U
Application number: JP5219586U
Authority: JP
Priority date: 1986-04-09
Filing date: 1986-04-09
Publication date: 1987-10-21

Description

[Brief explanation of drawings]

第１図は、本考案における一実施例としての歯
車ポンプを側断面図によつて示したものであり、
第２図は、第１図におけるイイ断面図を示し、第
３図は、中板５のみの第１図におけるロ矢視図を
示したものである。実施例に使用した符合は下記のとおりである。
１：駆動軸、１ａ：ヘリカル歯車、１ｂおよび１
ｃ：歯車、２：被動軸、２ａおよび２ｂ：歯車、
３：ケーシング、４：側板、３ｂおよび４ｂ：歯
車室、５：中板、５ａおよび５ｃ：切り欠き。 FIG. 1 shows a side sectional view of a gear pump as an embodiment of the present invention.
2 shows a cross-sectional view in FIG. 1, and FIG. 3 shows a view of only the middle plate 5 in the direction of the arrow in FIG. 1. The symbols used in the examples are as follows.
1: Drive shaft, 1a: Helical gear, 1b and 1
c: gear, 2: driven shaft, 2a and 2b: gear,
3: Casing, 4: Side plate, 3b and 4b: Gear chamber, 5: Middle plate, 5a and 5c: Notch.

Claims

[Claims for Utility Model Registration] A gear chamber is cut into the casing, a drive shaft and a driven shaft disposed parallel to the drive shaft are fitted into the casing, and in the gear chamber, a: a first gear is fitted onto the drive shaft to enable torque transmission; b: and a second gear that is in gear mesh with the first gear is fitted onto the driven shaft; c: At the position where the first gear and the second gear are engaged, and on the side of the plane connecting each rotation center of the drive shaft and the driven shaft, there is an actuating member on one side thereof. A suction chamber for oil is provided, and a discharge chamber for the hydraulic oil is provided on the other side, and side walls are provided on the axial end surfaces of the first gear and the second gear with a predetermined seal gap. In the above configuration, of the side surface of the side wall in which the first gear and the second gear are in contact, tooth portions of the first gear and the second gear are in contact with the suction chamber or exposed to the discharge chamber,
A portion corresponding to the position of the exposed tooth forms a space wider in the axial direction than the predetermined seal gap in a portion of the chamber on at least one side of the suction chamber or the discharge chamber. and the space is open to the chamber on one side of the gear pump.