JPS62165481U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ないし第３図は本考案の一実施例を示し
、第１図は液圧回転機に使用される切換弁板の正
面図、第２図は第１図の右側面図、第３図は第１
図の左側面図、第４図ないし第６図は従来技術を
示し、第４図は液圧回転機の縦断面図、第５図は
該液圧回転機に用いられる切換弁板の平面図、第
６図は該切換弁板の底面図である。 １…ケーシング、１Ａ…ヘツドケーシング、２
…回転軸、３…シリンダブロツク、３Ａ…端面、
１０…案内溝、１０Ａ…案内面、１０Ｂ…立上り
面、３１…切換弁板、３２…切換摺接面、３５Ａ
，３５Ｂ…滑り軸受、３６…傾転摺動面。 1 to 3 show one embodiment of the present invention, in which FIG. 1 is a front view of a switching valve plate used in a hydraulic rotating machine, FIG. 2 is a right side view of FIG. 1, and FIG. The figure is the first
The left side view and FIGS. 4 to 6 show the prior art, FIG. 4 is a longitudinal sectional view of a hydraulic rotating machine, and FIG. 5 is a plan view of a switching valve plate used in the hydraulic rotating machine. , FIG. 6 is a bottom view of the switching valve plate. 1...Casing, 1A...Head casing, 2
...Rotating shaft, 3...Cylinder block, 3A...End face,
10...Guide groove, 10A...Guiding surface, 10B...Rising surface, 31...Switching valve plate, 32...Switching sliding contact surface, 35A
, 35B...sliding bearing, 36...tilting sliding surface.

Claims (1)

【実用新案登録請求の範囲】 (1) ケーシング内に突出させて設けた回転軸と
、該回転軸の軸線に対して傾斜した状態で該回転
軸と一体回転するシリンダブロツクと、該シリン
ダブロツクに一側側面が摺接し、他側側面を前記
ケーシングの内壁に当接させて設けた切換弁板と
を備え、該切換弁板を前記ケーシング内壁に沿つ
て摺動変位させることにより前記シリンダブロツ
クを傾転変化させるセクタ形斜軸式液圧回転機に
おいて、前記シリンダブロツクと切換弁板との間
の摺接部に滑り軸受を介装し、前記ケーシング内
壁と摺動する前記切換弁板の傾転摺動面は表面硬
化処理を施した硬化面にしたことを特徴とするセ
クタ形斜軸式液圧回転機。 (2) 前記切換弁板の傾転摺動面は、前記ヘツド
ケーシング内壁を形成する案内溝の案内面と摺動
する摺動面と、該案内面の両側に形成される立上
り面によつて案内される摺動側面とからなり、前
記表面硬化処理は該傾転摺動面の摺動面と摺動側
面との全面にわたつて施してなる実用新案登録請
求の範囲(1)項記載のセクタ形斜軸式液圧回転機
。 (3) 前記切換弁板の傾転摺動面に施した表面硬
化処理は窒化処理である実用新案登録請求の範囲
(1)項又は(2)項記載のセクタ形斜軸式液圧回転機
。[Scope of Claim for Utility Model Registration] (1) A rotating shaft provided protruding within a casing, a cylinder block that rotates integrally with the rotating shaft while being inclined with respect to the axis of the rotating shaft, and and a switching valve plate provided with one side surface in sliding contact and the other side surface in contact with the inner wall of the casing, and the cylinder block is moved by slidingly displacing the switching valve plate along the inner wall of the casing. In a sector type diagonal shaft type hydraulic rotating machine that changes tilting, a sliding bearing is interposed in the sliding contact portion between the cylinder block and the switching valve plate, and the tilting of the switching valve plate that slides on the inner wall of the casing is improved. A sector type oblique shaft type hydraulic rotating machine characterized in that the rolling and sliding surfaces are hardened surfaces that have been subjected to surface hardening treatment. (2) The tilting sliding surface of the switching valve plate is formed by a sliding surface that slides on the guide surface of the guide groove forming the inner wall of the head casing, and rising surfaces formed on both sides of the guide surface. a guided sliding side surface, and the surface hardening treatment is applied to the entire surface of the sliding surface of the tilting sliding surface and the sliding side surface. Sector type oblique axis hydraulic rotating machine. (3) The scope of the utility model registration claim that the surface hardening treatment applied to the tilting sliding surface of the switching valve plate is nitriding treatment.
Sector type oblique shaft hydraulic rotating machine described in paragraph (1) or (2).