JP2018155193A5 - - Google Patents
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- JP2018155193A5 JP2018155193A5 JP2017053088A JP2017053088A JP2018155193A5 JP 2018155193 A5 JP2018155193 A5 JP 2018155193A5 JP 2017053088 A JP2017053088 A JP 2017053088A JP 2017053088 A JP2017053088 A JP 2017053088A JP 2018155193 A5 JP2018155193 A5 JP 2018155193A5
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- casing
- conical
- hole
- cylinder block
- valve plate
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- 238000000034 method Methods 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000002093 peripheral Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000010721 machine oil Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Description
上記目的を達成するために、本発明は、ケーシングと、前記ケーシングに回転可能に支持された回転軸と、前記回転軸と一体に回転するように前記ケーシング内に配置され、周方向に離間して位置し軸方向に延びる複数のシリンダが形成されたシリンダブロックと、前記複数のシリンダに往復運動可能に挿嵌された複数のピストンと、前記ケーシングに固定され、前記シリンダブロックが摺接するバルブプレートと、前記ケーシングの内周面と前記シリンダブロックの外周面との間の空間からなるドレンとを備え、前記バルブプレートは、前記シリンダブロックが回転するとき前記複数のシリンダと間欠的に連通する吸込ポート及び吐出ポートと、前記吸込ポートと前記吐出ポートの間でかつ前記シリンダブロックが回転するとき前記複数のピストンが吸込工程から吐出工程に切り換わる側に配置された第１切換ランドと、前記吸込ポートと前記吐出ポートの間でかつ前記シリンダブロックが回転するとき前記複数のピストンが吐出工程から吸込工程に切り換わる側に配置された第２切換ランドとを有しており、前記第２切換ランドに、前記複数のシリンダの圧液を排出する圧抜き孔が形成され、前記バルブプレートの前記ケーシングとの当接面に、前記圧抜き孔の出口部分を前記ドレンに連通する油溝が形成された液圧回転機において、前記圧抜き孔は、前記バルブプレートの前記シリンダブロックとの摺接面側に形成された第１円筒孔部と、前記第１円筒孔部の下流側に前記第１円筒孔部と同軸に形成され、上流から下流に向かって内径寸法が拡大する円錐凹部とを有しており、前記液圧回転機は、前記円錐凹部と対面するように配置され、前記円錐凹部との間に上流から下流に向かって流路断面積が拡大する環状流路を形成する円錐凸部と、前記円錐凸部と一体に形成され、前記ケーシングの前記バルブプレートとの当接面に形成された取付穴に嵌合して固定された第１嵌合部とを有するピン部材を備えたものとする。
In order to achieve the above object, the present invention provides a casing, a rotating shaft rotatably supported by the casing, and disposed in the casing so as to rotate integrally with the rotating shaft and spaced apart in the circumferential direction. And a cylinder block formed with a plurality of cylinders extending in the axial direction, a plurality of pistons inserted into the plurality of cylinders so as to be reciprocally movable, and a valve plate fixed to the casing and in sliding contact with the cylinder block when, and a drain consisting of a space between the inner peripheral surface and the outer circumferential surface of the cylinder block of the casing, the valve plate, prior Symbol cylinder block is intermittently communicating with said plurality of cylinders when rotating a suction port and a discharge port, said plurality of when between a and the cylinder block of the discharge port and the suction port is rotated The first switching land disposed on the side where the stone switches from the suction process to the discharge process, and when the cylinder block rotates between the suction port and the discharge port, the plurality of pistons change from the discharge process to the suction process. and a second switching land which is disposed on a side switched to the second switching lands, depressurizing hole and out discharge the liquid of the plurality of cylinders are formed, and the casing of the valve plate the contact surface of the hydraulic rotary machine oil groove is formed to the outlet portion communicating with the drain of the pressure relief hole, before Symbol pressure release hole, sliding surface between the cylinder block of the valve plate A first cylindrical hole formed on the side, and a conical recess formed coaxially with the first cylindrical hole on the downstream side of the first cylindrical hole and having an inner diameter that increases from upstream to downstream. has been The hydraulic turning point, the are arranged so as to face the conical recess and the conical protrusions flow path cross-sectional area to form an annular flow path to enlarge from the upstream toward the downstream between the conical recess, the A pin member formed integrally with the conical convex part and having a first fitting part fitted and fixed in a mounting hole formed on a contact surface of the casing with the valve plate is provided. .
Claims (3)
前記ケーシングに回転可能に支持された回転軸と、
前記回転軸と一体に回転するように前記ケーシング内に配置され、周方向に離間して位置し軸方向に延びる複数のシリンダが形成されたシリンダブロックと、
前記複数のシリンダに往復運動可能に挿嵌された複数のピストンと、
前記ケーシングに固定され、前記シリンダブロックが摺接するバルブプレートと、
前記ケーシングの内周面と前記シリンダブロックの外周面との間の空間からなるドレンとを備え、
前記バルブプレートは、前記シリンダブロックが回転するとき前記複数のシリンダと間欠的に連通する吸込ポート及び吐出ポートと、前記吸込ポートと前記吐出ポートの間でかつ前記シリンダブロックが回転するとき前記複数のピストンが吸込工程から吐出工程に切り換わる側に配置された第１切換ランドと、前記吸込ポートと前記吐出ポートの間でかつ前記シリンダブロックが回転するとき前記複数のピストンが吐出工程から吸込工程に切り換わる側に配置された第２切換ランドとを有しており、
前記第２切換ランドに、前記複数のシリンダの圧液を排出する圧抜き孔が形成され、
前記バルブプレートの前記ケーシングとの当接面に、前記圧抜き孔の出口部分を前記ドレンに連通する油溝が形成された液圧回転機において、
前記圧抜き孔は、前記バルブプレートの前記シリンダブロックとの摺接面側に形成された第１円筒孔部と、前記第１円筒孔部の下流側に前記第１円筒孔部と同軸に形成され、上流から下流に向かって内径寸法が拡大する円錐凹部とを有しており、
前記液圧回転機は、前記円錐凹部と対面するように配置され、前記円錐凹部との間に上流から下流に向かって流路断面積が拡大する環状流路を形成する円錐凸部と、前記円錐凸部と一体に形成され、前記ケーシングの前記バルブプレートとの当接面に形成された取付穴に嵌合して固定された第１嵌合部とを有するピン部材を備えたことを特徴とする液圧回転機。 A casing,
A rotating shaft rotatably supported by the casing;
A cylinder block disposed in the casing so as to rotate integrally with the rotating shaft, and formed with a plurality of cylinders that are spaced apart in the circumferential direction and extend in the axial direction;
A plurality of pistons inserted into the plurality of cylinders so as to be capable of reciprocating;
A valve plate fixed to the casing and in sliding contact with the cylinder block ;
A drain comprising a space between the inner peripheral surface of the casing and the outer peripheral surface of the cylinder block ;
Said plurality when said valve plate includes a suction port and a discharge port prior Symbol cylinder block is intermittently communicating with said plurality of cylinders when rotating, which while a and the cylinder block of the discharge port and the suction port is rotated The first switching land disposed on the side where the piston of the suction switch is switched from the suction process to the discharge process, and the plurality of pistons from the discharge process to the suction process when the cylinder block rotates between the suction port and the discharge port. and a second switching lands disposed in the cut-switched side, the
Said second switching lands, depressurizing hole and out discharge the liquid of the plurality of cylinders are formed,
In the hydraulic rotary machine in which an oil groove that communicates the outlet portion of the pressure release hole with the drain is formed on the contact surface of the valve plate with the casing ,
The pressure release hole is formed on the side of the valve plate that is in sliding contact with the cylinder block, and is formed on the downstream side of the first cylinder hole and coaxially with the first cylinder hole. is, has a conical recess to expand the inner diameter from the upstream toward the downstream,
The hydraulic rotating machine is disposed so as to face the conical concave portion, and the conical convex portion that forms an annular flow channel with an enlarged flow passage cross section from upstream to downstream between the conical concave portion , A pin member is formed integrally with the conical convex portion, and has a first fitting portion that is fitted and fixed to a mounting hole formed on a contact surface of the casing with the valve plate. A hydraulic rotating machine.
前記ピン部材の第１嵌合部は、前記円錐凹部の円錐面形状を前記ケーシングの底面まで延長した場合の最大内径寸法よりも大きい外径寸法を有することを特徴とする液圧回転機。 In the hydraulic rotating machine according to claim 1 ,
The first rotating portion of the pin member has a larger outer diameter than a maximum inner diameter when the conical surface shape of the conical recess is extended to the bottom surface of the casing.
前記圧抜き孔は、前記円錐凹部の下流側に前記円錐凹部と同軸に形成され、前記円錐凹部の最大内径寸法と同一の内径寸法を有する第２円筒孔部を更に有しており、
前記ピン部材は、前記円錐凸部と前記第１嵌合部との間に前記円錐凸部と同軸に形成され、前記第２円筒孔部に嵌合して固定された第２嵌合部を更に有しており、
前記ピン部材は、前記第１嵌合部が前記ケーシングの取付穴に嵌合して固定され、前記第２嵌合部が前記圧抜き孔の第２円筒孔部に嵌合して固定されることで、前記バルブプレートを前記ケーシングに固定するノックピンとして機能することを特徴とする液圧回転機。 In the hydraulic rotating machine according to claim 2,
The pressure relief hole, wherein the downstream side of the conical recess is formed in a conical recess coaxially has a second cylindrical bore portion having a maximum inner diameter same inner diameter and the dimensions of the conical recess Furthermore,
The pin member is formed coaxially with the conical convex portion between the conical convex portion and the first fitting portion, and has a second fitting portion fixed by fitting into the second cylindrical hole portion. in addition has,
The pin member is fixed by fitting the first fitting portion into the mounting hole of the casing, and the second fitting portion is fitted and fixed to the second cylindrical hole portion of the pressure release hole. Thus, the hydraulic rotary machine functions as a knock pin for fixing the valve plate to the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017053088A JP6640140B2 (en) | 2017-03-17 | 2017-03-17 | Hydraulic rotating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017053088A JP6640140B2 (en) | 2017-03-17 | 2017-03-17 | Hydraulic rotating machine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2018155193A JP2018155193A (en) | 2018-10-04 |
| JP2018155193A5 true JP2018155193A5 (en) | 2019-03-14 |
| JP6640140B2 JP6640140B2 (en) | 2020-02-05 |
Family
ID=63716323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017053088A Active JP6640140B2 (en) | 2017-03-17 | 2017-03-17 | Hydraulic rotating machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6640140B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7377095B2 (en) * | 2019-12-19 | 2023-11-09 | 株式会社小松製作所 | Hydraulic pump/motor |
| CN112177875B (en) * | 2020-09-29 | 2022-03-18 | 太原科技大学 | Swash plate driving flow distribution integrated variable displacement plunger pump |
| JP7361971B1 (en) | 2023-04-25 | 2023-10-16 | 川崎重工業株式会社 | Hydraulic rotating machines, valve plates for hydraulic rotating machines, and cylinder blocks for hydraulic rotating machines |
-
2017
- 2017-03-17 JP JP2017053088A patent/JP6640140B2/en active Active
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