JPH0365873U

JPH0365873U -

Info

Publication number: JPH0365873U
Application number: JP12750689U
Authority: JP
Priority date: 1989-10-31
Filing date: 1989-10-31
Publication date: 1991-06-26

Description

[Brief explanation of the drawing]

第１図は本考案のギヤポンプの一実施例の平断
面図、第２図は第１図の−線断面図、第３図
は同実施例の斜視図、第４図は従来技術の説明図
、である。Ｐ……（外接型）ギヤポンプ、１……ケース本
体、１ａ……芯出し用内周面（軸受支持用円筒面
）、２……駆動軸、２ａ……駆動ギヤ、３ａ……
従動ギヤ、４，５，６，７……軸受、１１……前
側板、１１ａ……駆動軸用貫通孔、１２……芯出
し部材。 Fig. 1 is a plan sectional view of an embodiment of the gear pump of the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, Fig. 3 is a perspective view of the same embodiment, and Fig. 4 is an explanatory diagram of the prior art. , is. P... (external type) gear pump, 1... Case body, 1a... Inner peripheral surface for centering (cylindrical surface for bearing support), 2... Drive shaft, 2a... Drive gear, 3a...
Driven gear, 4, 5, 6, 7...Bearing, 11...Front side plate, 11a...Through hole for drive shaft, 12...Centering member.

Claims

[Claims for Utility Model Registration] The outer periphery of a bearing that rotatably supports a drive shaft carrying a drive gear that meshes with a driven gear has a cylindrical surface concentric with the bearing surface, The case body is housed in the case body, and the cylindrical surface of the outer periphery of the bearing is supported by a bearing supporting cylindrical surface formed in the case body, and the front plate has a drive shaft through hole through which the drive shaft passes. In a gear pump with a front end face closed, a ring-shaped centering member having an outer circumferential surface concentric with the drive shaft through hole is protruded from the inner surface of the front side plate, and the outer circumferential surface of the centering member is connected to the case. A gear pump characterized in that it is fitted to an inner peripheral surface for centering that is concentric with a cylindrical surface for supporting a bearing of the main body.