JPS6347517A - Center adjusting device for rotary compressor and similar equipment - Google Patents
Center adjusting device for rotary compressor and similar equipmentInfo
- Publication number
- JPS6347517A JPS6347517A JP19225986A JP19225986A JPS6347517A JP S6347517 A JPS6347517 A JP S6347517A JP 19225986 A JP19225986 A JP 19225986A JP 19225986 A JP19225986 A JP 19225986A JP S6347517 A JPS6347517 A JP S6347517A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- crankshaft
- sub
- main
- holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Landscapes
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Support Of The Bearing (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、ロータリ圧縮機のような機器において、ク
ランク軸の偏心部を挾むようにクランク軸が嵌合される
主軸受と副軸受とを同一軸心上または所定相対位置に位
置決めするロークリ圧縮機および類似機器の調心装置に
関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention is directed to a device such as a rotary compressor in which a main bearing and a sub-bearing, to which a crankshaft is fitted so as to sandwich an eccentric part of the crankshaft, are the same. The present invention relates to an alignment device for a rotary compressor and similar equipment that is positioned on the axis or at a predetermined relative position.
第５図は従来のロータリ圧縮機におけろ主軸受と副軸受
との調心装置の縦断面図である。第５図において、１は
中間に帰心部２を有するクランク軸、３（よりランク軸
１を支承する主軸受、４は主軸受３に所定位置で予めね
し止めなどで固定されたシリンダ、５はクランク軸１の
帰心部２に嵌挿されてシリンダ５の内周面に沿って回転
されろローリングピストン、６は主軸受３と共に上記帰
心部２を挾むようにクランク軸１が嵌挿される副軸受で
あり、副軸受６ば、所定位置でシリンダ４に固定されて
、主軸受３との間に圧縮室７が形成されるようになって
いる。８は主軸受３とクランク軸３との間の隙間部、９
は副軸受６とクランク軸１との間の隙間部である。１０
は主軸受３を直立状態に載置する支持台、１１は支持台
ｌＯを取付けたペース、１２はベース１１内に固定され
た電１！１機、１３は電動機】２の軸にクランク軸１を
連結する軸継手、１４は副軸受６上方に配設される給油
ノズルであ咋、給油ノズル１４から上記隙間部８，９に
注油し、注油された油が隙間部８，９を流れ、ベース１
１底部に設けられた排油孔１５から外部に放出されるよ
うになっている。FIG. 5 is a longitudinal cross-sectional view of an alignment device for a main bearing and a sub-bearing in a conventional rotary compressor. In FIG. 5, 1 is a crankshaft having a centering portion 2 in the middle, 3 is a main bearing that supports the rank shaft 1, and 4 is a cylinder fixed in advance to the main bearing 3 at a predetermined position with screws, etc. 5 is a rolling piston that is fitted into the return portion 2 of the crankshaft 1 and rotated along the inner circumferential surface of the cylinder 5; 6 is a rolling piston that is inserted into the crankshaft 1 so as to sandwich the return portion 2 together with the main bearing 3; The sub bearing 6 is fixed to the cylinder 4 at a predetermined position so that a compression chamber 7 is formed between the main bearing 3 and the main bearing 3. Gap between 9
is a gap between the secondary bearing 6 and the crankshaft 1. 10
1 is a support stand on which the main bearing 3 is placed upright, 11 is a pace on which a support stand IO is attached, 12 is an electric motor 1 fixed in the base 11, and 13 is an electric motor. 14 is an oil supply nozzle disposed above the sub-bearing 6. The oil supply nozzle 14 lubricates the gaps 8 and 9, and the oil flows through the gaps 8 and 9. base 1
The oil is discharged to the outside from a drain hole 15 provided at the bottom of the oil drain hole 15.
次に、この調心装置の動作について説明する。Next, the operation of this alignment device will be explained.
クランク軸１．主軸受３．シリンダ４．ローリングピス
トン５および副軸受６を組合せた状態で、主軸受３を直
立させて支持台１０上に乗せる。そして、電動機１２の
軸に固定された軸継手１３をクランク軸１に連結して電
動機１２を駆動し、この状態で給油ノズル１４から隙間
部８に注油する。注油された油はＰｉＸ間部８からシリ
ンダ４内を経て隙間部９に流入し、クランク軸１の回転
に伴う隙間部８゜９内の油膜の厚さおよび油膜内に発生
する圧力により主軸受３の中心とクランク軸１の中心と
が同軸に、また副軸受４の中心とクランク軸１の中心と
が同軸にそれぞれ位置決めされる。したがって、この状
態で副軸受６をシリンダ４に固定することで、主！膚受
３と副軸受６の相対的な同軸位置決め操作が完了する。Crankshaft 1. Main bearing 3. Cylinder 4. With the rolling piston 5 and the sub-bearing 6 combined, the main bearing 3 is placed upright on a support stand 10. Then, a shaft joint 13 fixed to the shaft of the electric motor 12 is connected to the crankshaft 1 to drive the electric motor 12, and in this state, oil is supplied to the gap 8 from the oil supply nozzle 14. The lubricated oil flows from the PiX space 8 through the cylinder 4 into the gap 9, and due to the thickness of the oil film within the gap 8°9 and the pressure generated within the oil film as the crankshaft 1 rotates, the main bearing 3 and the center of the crankshaft 1 are positioned coaxially, and the center of the auxiliary bearing 4 and the center of the crankshaft 1 are positioned coaxially, respectively. Therefore, by fixing the sub-bearing 6 to the cylinder 4 in this state, the main! The relative coaxial positioning operation of the skin bearing 3 and the secondary bearing 6 is completed.
しかし、上記のような調心装置では、クランク軸の回転
時に発生する軸心振れや、クランク軸に対する軸受内径
の傾きのために、組立精度が悪くなり、組合せた部品寸
法に対応しｔコ最適な位置に組立てることができないと
いう問題点があった。However, with the above-mentioned alignment device, assembly accuracy deteriorates due to shaft center runout that occurs when the crankshaft rotates and the inclination of the inner diameter of the bearing with respect to the crankshaft. There was a problem that it could not be assembled in the correct position.
そこで、特開昭５７−７１７３７号公報に示すように、
主軸受が着脱可能に水平に保持されろ下ＸＹ子テーブル
、このＸＹ子テーブル方に対向して配設され副軸受が着
脱可能に水平に保持される上ＸＹ子テーブル、上記主、
副軸受に挿通されろクランク軸を垂直に保持させる支持
８Ｎ虜と、下。Therefore, as shown in Japanese Patent Application Laid-Open No. 57-71737,
A lower XY child table whose main bearing is removably held horizontally, an upper XY child table which is disposed opposite to this XY child table and whose sub bearing is removably held horizontally, the above-mentioned main;
The supporting 8N capillary, which is inserted into the sub-bearing and holds the crankshaft vertically, is below.
上ＸＹ子テーブルＸ方向Ｙ方向に移動し上記主。The upper XY child table moves in the X direction and the Y direction.
副軸受の内周面が上記回転軸の外周面に接触したことを
それぞれ検出するロードセルのような下。A load cell-like bottom that detects when the inner circumferential surface of the sub-bearing contacts the outer circumferential surface of the rotating shaft.
上センサと、これらのセンサが回転軸と主、副軸受との
接触を検出した時に下、上ＸＹ子テーブル座標をそれぞ
れ検出する差動トランスのような下。The bottom sensor is a differential transformer that detects the coordinates of the bottom and top XY child tables, respectively, when these sensors detect contact between the rotating shaft and the main and sub bearings.
上位置検出器とを備えたものが提案されている。A device equipped with an upper position detector has been proposed.
この調心装置では、予めシリンダと固定した主軸受と副
軸受を下、上ＸＹ子テーブルそれぞれ水平に保持し、主
、副軸受にクランク軸を押通して支持機構で垂直に保持
し、下、上ＸＹ子テーブル主、副軸受とクランク軸との
接触を検出するセンサで制御すると共に、接触時の座標
を位置検出器で検出することによゆ、主、副軸受の中心
とクランク軸の中心とを一致させるようにしている。In this alignment device, the main bearing and sub-bearing, which are fixed to the cylinder in advance, are held horizontally on the lower and upper XY child tables, and the crankshaft is pushed through the main and sub-bearings and held vertically by a support mechanism. The upper XY child table is controlled by a sensor that detects contact between the main and sub bearings and the crankshaft, and the coordinates at the time of contact are detected by a position detector to determine the center of the main and sub bearings and the center of the crankshaft. I am trying to match the .
しかし、特開昭５７−７１７３７号公報に示された調心
装置では、主、副軸受の内径をクランク軸の偏心部下、
上に延びる長、短軸部の外径を基準として位置合せをし
ているので、第６図に例示するように、クランク軸１の
長、短軸部１ａ、 ｌｂに加工時に偏心が生じろと、こ
の偏心量Ｅが主。However, in the alignment device disclosed in Japanese Patent Application Laid-open No. 57-71737, the inner diameters of the main and sub bearings are located below the eccentricity of the crankshaft.
Since alignment is performed based on the outer diameter of the long and short shafts extending upward, eccentricity may occur in the long and short shafts 1a and 1b of the crankshaft 1 during machining, as illustrated in Fig. 6. This eccentricity E is the main factor.
副軸受３，６の中心ずれとなり、高精度にロータリ圧縮
機を組立てることがでない。また、第７図に示すように
、軸受面とクランク軸に直角度誤差θがあると組立誤差
になるので、精度よく位置合せをする必要があるが、圧
縮機の部品および調心装置の精度から必要な直角度で位
置合せをずろことは困緋であり、計測器を用いて傾きの
修正を行うようにすると装置が高価になる。さらに、下
。This causes the auxiliary bearings 3 and 6 to be misaligned, making it impossible to assemble the rotary compressor with high precision. In addition, as shown in Figure 7, if there is a squareness error θ between the bearing surface and the crankshaft, it will result in an assembly error, so it is necessary to align the position accurately. It is difficult to shift the alignment at the required perpendicularity, and if a measuring instrument is used to correct the inclination, the equipment becomes expensive. Further down.
上ＸＹ子テーブルロードセルなどが必要で装置の構成が
複雑となり、高価になるという問題点があった。There is a problem in that an upper XY child table load cell and the like are required, making the configuration of the device complicated and expensive.
この発明は、上記のような問題点を解決して、クランク
軸の長、短軸部に偏心があったり、軸受面とクランク軸
に直角度誤差があっても、主、副軸受を高精度に位置決
めでき、しかも構成が簡単で安価なロータリ圧縮機およ
び類似機器の調心装置を得ることを目的としている。This invention solves the above-mentioned problems and maintains the main and sub bearings with high accuracy even if there is eccentricity in the long and short shaft parts of the crankshaft or there is a squareness error between the bearing surface and the crankshaft. The object of the present invention is to provide an alignment device for a rotary compressor and similar equipment that can be positioned easily, has a simple configuration, and is inexpensive.
この発明に係るロータリ圧縮機および類似機器の調心装
置は、クランク軸を支持する主軸受を着脱可能に固定す
る保持具と、Ｍ＋１軸受を着脱可能に把持する把持具と
、上記保持具および把持具の一方を水平方向に移動させ
るＸＹ子テーブル、上記保持具および把持具の一方を水
平方向に移動させるＸＹ子テーブル、保持具および把持
具の片方を上下方向に移動させる昇降機構と、上記副軸
受の位置を少なくとも直交する２方向の外周側から測定
するセンサとを備えたものである。The alignment device for a rotary compressor and similar equipment according to the present invention includes a holder that removably fixes a main bearing that supports a crankshaft, a holder that removably grips an M+1 bearing, and the holder and the grip. an XY child table that moves one of the tools in the horizontal direction; an XY child table that moves one of the holder and the grip in the horizontal direction; a lifting mechanism that moves one of the holder and the grip in the vertical direction; The bearing is equipped with a sensor that measures the position of the bearing from the outer circumferential side in at least two orthogonal directions.
この発明における調心装置では、主軸受、これに固定し
たシリンダ、クランク軸、ローリングピストンおよびシ
リンダ上に支持した副軸受を組合せ、主軸受を保持具に
固定した状態で、クランク軸を傾けるように回転させ、
またはＸおよびＹ方向に移動させて押付け、少なくとも
直交する２方向の外周側からセンサによって副軸受の変
位を測定し、この測定値に基いて主、副軸受の一方をＸ
Ｙ子テーブル昇降機構で所定位置に移動させて主。The alignment device of this invention combines a main bearing, a cylinder fixed to the main bearing, a crankshaft, a rolling piston, and a sub-bearing supported on the cylinder, and tilts the crankshaft with the main bearing fixed to a holder. rotate it,
Alternatively, move and press in the X and Y directions, measure the displacement of the secondary bearing with a sensor from the outer circumferential side in at least two orthogonal directions, and then move one of the main and secondary bearings to the
Mainly move the Y child table to the specified position using the lifting mechanism.
副軸受の中心が一致しまたは所定方向に所定址ずれるよ
うにすることにより、クランク軸の偏心部両側の長、短
軸部に偏心があったり、軸受面とクランク軸の直角度の
精度が比較的低かったりしても、容易に高精度に主、副
軸受の位置決めができ、さらに従来の調心装置に比べ、
ＸＹ子テーブルセンサの数が少ない簡単な構成にできる
。By aligning the centers of the sub-bearings or having them deviate by a predetermined amount in a predetermined direction, the accuracy of the perpendicularity between the bearing surface and the crankshaft can be checked if there is eccentricity in the long or short shafts on both sides of the eccentric part of the crankshaft. The main and sub bearings can be easily positioned with high precision even if the target is low, and compared to conventional alignment devices,
A simple configuration with a small number of XY child table sensors can be achieved.
息下、この発明の一実施例を第１図ないし第２図につい
て説明する。An embodiment of the present invention will now be described with reference to FIGS. 1 and 2. FIG.
第１図、第２図において、１６は主軸受３を着脱可能に
固定する保持具、１７はクランク軸１の下端切欠部ＩＣ
に係脱可能に係合する駆動子、１８は回転軸１８ａが駆
動子１７に固定され、駆動子１７を介してクランク軸１
を回転駆動させる電動機であり、電動機１８は保持具１
６を固定した支持台１９下面に上下動可能に支持されて
いる。２０は副軸受６の位置を直交する２方向の外周側
から測定する過電流センサのようなセンサ、２１は保持
具１６上に取付けなセンサ保持具、２２は副軸受３を着
脱可能に把持する把持具であり、把持具２２は保持具１
６上方に配置され水平に移動する従来公知のＸＹテーブ
ル２３下面に取付けられている。２４はＸＹ子テーブル
３が下面に設けられた移動台であり、移動台２４は上下
方向に往復動可能に支持台１９に支持されている。２５
は移動台２４に連結されたエアシリンダ機構などの昇降
機構であり、昇降機構２５は支持台１９上に固定されて
いる。In FIGS. 1 and 2, 16 is a holder for removably fixing the main bearing 3, and 17 is a lower end notch IC of the crankshaft 1.
The rotation shaft 18a of the drive element 18 that is removably engaged with the drive element 18 is fixed to the drive element 17, and is connected to the crankshaft 1 through the drive element 17.
The electric motor 18 is an electric motor that rotationally drives the holder 1.
6 is fixed to the lower surface of a support stand 19, which is movable up and down. 20 is a sensor such as an overcurrent sensor that measures the position of the secondary bearing 6 from the outer circumferential side in two orthogonal directions; 21 is a sensor holder that is attached to the holder 16; and 22 is a sensor that removably holds the secondary bearing 3. The gripping tool 22 is the holding tool 1.
A conventionally known XY table 23 which is disposed above 6 and moves horizontally is attached to the lower surface. Reference numeral 24 denotes a movable base on which the XY child table 3 is provided, and the movable base 24 is supported by the support base 19 so as to be able to reciprocate in the vertical direction. 25
is an elevating mechanism such as an air cylinder mechanism connected to the moving table 24, and the elevating mechanism 25 is fixed on the support table 19.
次ニ、この実施例による調心装置の動作ニついて説明す
る。まず、第１図に示すように、主軸受３、シリンダ４
、クランク軸１、ローリングピストン５、副軸受３を組
合せた状態で保持具１６上にセットし、保持具１６に主
軸受３を着脱可能に固定する。この時、シリンダ４は主
軸受３にボルトで固定されているが、副軸受６はシリン
ダ４上に支持されてこれに対し完全に拘束されていない
。また、上記セット時に、クランク軸１の下端切欠部Ｉ
Ｃに上昇位置の駆動子１７を係合させる。次に、電動８
！】８を駆動させ、駆動子１７を介してクランク軸１を
回転させると、クランク軸１は偏心部２があるので、不
釣合によって傾き、主軸受３の軸受部内で２点接触状態
となる。なお、偏心部がなかったり偏心部が小さな軸で
十分に傾斜しない場合には、ばね力などで一方向に押付
けて軸を回転させる。クランク軸１が傾いた状態で回転
すると、その副軸受６側の短軸部１ｂが振れ回りし、こ
れにつれて副軸受６の中心も円を描く。上記のように副
軸受６は、完全には拘束されていないので、遠心力によ
ってり゛ランク軸１の一方の側に押付けられてこの軸１
と共に円運動を行う。以上の状態を第３図（ａ）、 （
ｂ）に示す。これらの図において、副軸受１６とそれの
外周側に位置するセンサ２０の測定距離の最大値をＳ７
、最小値を８２とし、また各部の寸法を第３図（ａ）、
（ｂ）に記号で示すようにする。なお、主軸受３とクラ
ンク軸１の長軸部Ｌａとのクリアランスは小さい。従っ
て、クランク軸１の傾きも小さいので、第２図（ａ）、
（ｂ）中の （Ａ）、（Ｂ）は次のように表わせる。Next, the operation of the alignment device according to this embodiment will be explained. First, as shown in Fig. 1, the main bearing 3, cylinder 4
, the crankshaft 1, rolling piston 5, and sub-bearing 3 are set on a holder 16 in a combined state, and the main bearing 3 is removably fixed to the holder 16. At this time, the cylinder 4 is fixed to the main bearing 3 with bolts, but the auxiliary bearing 6 is supported on the cylinder 4 and is not completely constrained thereto. Also, when setting the above, the lower end notch I of the crankshaft 1
C is engaged with the driver 17 in the raised position. Next, electric 8
! When the crankshaft 1 is driven and the crankshaft 1 is rotated via the drive element 17, the crankshaft 1 is tilted due to imbalance due to the eccentric portion 2, and a two-point contact state occurs within the bearing portion of the main bearing 3. Note that if there is no eccentric part or if the eccentric part is small and does not tilt sufficiently, the shaft is rotated by pressing it in one direction with a spring force or the like. When the crankshaft 1 rotates in an inclined state, the short shaft portion 1b on the sub-bearing 6 side swings around, and the center of the sub-bearing 6 also draws a circle accordingly. As mentioned above, the secondary bearing 6 is not completely restrained, so it is pressed against one side of the rank shaft 1 by the centrifugal force, and this shaft 1
Perform a circular motion with the The above state is shown in Figure 3(a), (
Shown in b). In these figures, the maximum value of the measurement distance between the secondary bearing 16 and the sensor 20 located on the outer circumferential side thereof is indicated by S7.
, the minimum value is 82, and the dimensions of each part are shown in Figure 3(a).
(b) as shown in the symbol. Note that the clearance between the main bearing 3 and the long shaft portion La of the crankshaft 1 is small. Therefore, since the inclination of the crankshaft 1 is small, as shown in Fig. 2(a),
(A) and (B) in (b) can be expressed as follows.
Ａ÷（Ｂ２−ｄ）（ｈｌ−４−ｈ２）／ ｈ、 −・
（１）Ｂ＝Ｅ Ｄ２ ／２
・・・（２）Ｓ、 十Ｆ＝Ａ十Ｂ
・・・（３）Ｓ ２＋Ｆ＋ Ｄ 、 ＝ Ｅ十Ｄ
２ ／ ２ ・（４）また、（３１，（４１式
から
（Ｓ＋ ＋３２ ） ／ ２ ＋Ｆ ＋Ｄ ＋ ／ ２
＝ Ｅ ・（５）となる。上記（５）式から一方の
センサ２０と副軸受６の距離を（Ｓ、 ＋３２／２ ）
とすれば、副軸受６の内径中心と主軸受３の内径中心と
が一方向について一致する。また、他方のセンサ２０に
よっても同様にすることで、副軸受６の内径中心と主軸
受３の内径中心とが他方向について一致する。したがっ
て、直交する両センサ２０の測定値に基いて副軸受６の
位置合せを行えば、副軸受６と主軸受３の中心が正確に
位置する。すなわち、第２図に示すように、１１１１機
１８を下降させて駆動子１７とクランク軸１との係合を
外して、昇降８１構２５を駆動し、移動台２４、ＸＹ子
テーブル３および把持具２２を一体に下降させる。次に
開いていた把持爪２２ａを閉じ、これらで副軸受６を把
持し、上記両センサ２０の測定値に応じてＸＹ子テーブ
ル３を駆動して、副軸受６を水平移動させ、副軸受６と
主軸受３の位置合せを行う。なお、この位置合せは、通
常、両軸受６．３の内径中心を一致されるが、これらの
内径中心をある方向にずらして組立てた方が製品の性能
がよくなる場合があり、この場合には、センサ２０の測
定値に基いて内径中心が一致する位置を求めた後、所定
方向に所定量ＸＹ子テーブル３を動かして副軸受６を主
軸受３と所定方向に所定量ずらして位置決めする。前記
のように位置決めした後、副軸受６をボルトによって主
軸受３に固定することで組立が完了する。A÷(B2-d)(hl-4-h2)/h, -・
(1) B=E D2 /2
...(2) S, 10F=A1B
...(3) S2+F+D, =E1D
2 / 2 ・(4) Also, (31, (from formula 41, (S + +32 ) / 2 +F +D + / 2
= E ・(5). From the above formula (5), the distance between one sensor 20 and the secondary bearing 6 is (S, +32/2)
If so, the inner diameter center of the sub bearing 6 and the inner diameter center of the main bearing 3 coincide in one direction. Further, by doing the same with the other sensor 20, the inner diameter center of the sub bearing 6 and the inner diameter center of the main bearing 3 coincide in the other direction. Therefore, if the sub-bearing 6 is aligned based on the measured values of the two orthogonal sensors 20, the centers of the sub-bearing 6 and the main bearing 3 will be accurately located. That is, as shown in FIG. 2, the 1111 machine 18 is lowered to disengage the drive element 17 and the crankshaft 1, and the lifting 81 mechanism 25 is driven to move the moving table 24, the XY child table 3, and the gripper. The tools 22 are lowered together. Next, close the gripping claws 22a that were open, grip the sub-bearing 6 with these, drive the XY child table 3 according to the measured values of both the sensors 20, horizontally move the sub-bearing 6, and and align the main bearing 3. Note that this alignment is usually done by aligning the inner diameter centers of both bearings 6.3, but there are cases where the performance of the product will be better if the inner diameter centers of these bearings are shifted in a certain direction. After determining the position where the inner diameter centers match based on the measured value of the sensor 20, the XY child table 3 is moved by a predetermined amount in a predetermined direction to position the auxiliary bearing 6 and the main bearing 3 by a predetermined amount in a predetermined direction. After positioning as described above, assembly is completed by fixing the sub bearing 6 to the main bearing 3 with bolts.
また、クランク軸１を回転させる際に、上述した従来の
ものと同様に注油を行う場合には、副軸受６の内径とク
ランク軸１の隙四部８に油膜ができるので、第４図（ａ
）、 （ｂ）に示すように、副軸受６はクランク軸１に
接触せずに中立位置となり、クランク軸ｌの傾きが非常
に小さいので、第４図（Ｊｌ）、 （ｂ）中のＧ÷（Ｐ
Ｉ−ｄ）／２となる。また、上記（３）、 （４１式は
下記のようになる。In addition, when rotating the crankshaft 1, when lubricating the crankshaft 1 as in the conventional method described above, an oil film is formed between the inner diameter of the sub-bearing 6 and the gap 8 of the crankshaft 1, as shown in Fig. 4 (a).
), (b), the secondary bearing 6 is in the neutral position without contacting the crankshaft 1, and the inclination of the crankshaft l is very small, so G in Fig. 4 (Jl) and (b) ÷(P
I-d)/2. In addition, the above formulas (3) and (41) are as follows.
Ｓ、 十Ｆ十Ｇ＝Ａ十Ｂ −・（６）Ｓ
２＋Ｆ＋Ｄ、−Ｇ＝Ｅ十Ｄ２ ／２−Ａ ・・（７）
［８１，（７）式から
（ｓ＋ 十ｓ２）／２ ＋Ｆ＋Ｄ、／２＝Ｅ −・（
８）となる。したがって、注油しない場合と同様に副軸
受６を位置決めすればよい。S, 10F 10G = A 10B - (6) S
2+F+D, -G=E1D2/2-A...(7)
[81, from equation (7), (s+ 10s2)/2 +F+D, /2=E −・(
8). Therefore, the secondary bearing 6 may be positioned in the same manner as in the case without oil lubrication.
さらに、上記実施例ではクランク軸１を回転させて互い
に直交するセンサ２０で、これらと副軸受６との距離の
測定を行ったが、この発明は、副軸受６をＸおよびＹ方
向に移動させ、第３図（ａ）。Furthermore, in the above embodiment, the distance between the crankshaft 1 and the secondary bearing 6 was measured by rotating the crankshaft 1 and using the sensors 20 orthogonal to each other. , Figure 3(a).
（ｂ）に示すような位置関係で測定をすれば、上記実施
例の場合と同様に位置決めすることができる。If measurements are made with the positional relationship shown in (b), positioning can be performed in the same manner as in the above embodiment.
すなわち、初期の測定位置と異った方向つまり９０＠、
１８０” 、２７０”の方向にクランク軸１を傾かせる
場合には、クランク軸１の回転方向位置もそれぞれ同角
度つまり９０’ 、 １８０’ 、２７０”とし、クラ
ンク軸が軸受内径と接触する位置が常に同じになるよう
にする。これは、副軸受６を一定の力で水平方向に押付
けることによって実現でき、電動８１１８などの回転機
構が不要になる。That is, in a direction different from the initial measurement position, that is, 90@,
When tilting the crankshaft 1 in the directions of 180" and 270", the positions of the crankshaft 1 in the rotational direction are also set at the same angles, that is, 90', 180', and 270", and the position where the crankshaft contacts the inner diameter of the bearing is This can be achieved by pressing the secondary bearing 6 horizontally with a constant force, eliminating the need for a rotating mechanism such as the electric motor 8118.
なお、上記実施例では、副軸受を昇降機構で昇降させる
と共にＸＹ子テーブル水平移動させるようにしたが、こ
の発明は、主軸受を昇降させて副軸受に対し接離させ、
副軸受けＸＹ子テーブル水平移動させるなど、主、副軸
受の一方をＸＹ子テーブルクランク軸半径方向に移動さ
せ、主、副軸受の片方を接離方向つまりクランク軸方向
に移動させるようにすればよい。さらに、センサは４個
を２個ずつ方向させてこれらが直交するように設けても
よい。そして、この発明は、ロータリ圧縮機だけではな
く、これに類似した部品構成の機器にも適用でき、この
場合でも実施例のものと同様な効果が得られる。In the above embodiment, the sub-bearing is raised and lowered by the lifting mechanism and the XY child table is moved horizontally.
For example, by horizontally moving the sub bearing XY child table, one of the main and sub bearings can be moved in the radial direction of the crankshaft, and one of the main and sub bearings can be moved in the approaching and separating direction, that is, in the direction of the crankshaft. . Furthermore, the four sensors may be arranged in two directions so that they are perpendicular to each other. The present invention can be applied not only to rotary compressors, but also to devices with similar component configurations, and even in this case, the same effects as those of the embodiments can be obtained.
以上説明したように、この発明によれば、主軸受クラン
ク軸のような各部品を組合せた状態で、クランク軸を傾
けるように回転させ、またはＸおよびＹ方向に移動させ
て押付けることで、少なくとも直交する２方向の外周側
からセンサで副軸受の変位を測定し、この測定値に基い
て主、副軸受の一方を所定位置に移動させるようにした
ので、クランク軸の偏心部両側の長、短軸部に偏心があ
ったり、軸受面とクランク軸に直角度課差があったりし
た場合でも、容易に高精度に組合でることができ、部品
寸法に応じ最適位置に位置決めでき、製品の組合不良を
防止でき、ｘＹ子テーブルセンサなどの数が少なく、構
成が簡単であり、安価な調心装置が得られるという効果
がある。As explained above, according to the present invention, by rotating the crankshaft so as to tilt it or moving it in the X and Y directions and pressing the parts together, such as the main bearing and the crankshaft, The displacement of the sub bearing is measured from the outer circumferential side in at least two orthogonal directions using a sensor, and one of the main and sub bearings is moved to a predetermined position based on this measurement value, so the length on both sides of the eccentric part of the crankshaft is Even if there is an eccentricity in the short shaft or a difference in perpendicularity between the bearing surface and the crankshaft, it can be easily assembled with high precision, and the parts can be positioned at the optimum position according to the dimensions of the product. It is possible to prevent assembly defects, reduce the number of xY child table sensors, etc., have a simple configuration, and provide an inexpensive alignment device.
第１図はこの発明の一実施例によるロータリ圧縮機の調
心装置を示す主、副軸受セット状態の側断面図、第２図
は同位置決め完了時の側断面図、第３図（ａ）、 （ｂ
）はクランク軸が回転方向に互いに異った位置にある状
態の油を用いない場合の作用説明図、第４図（ａ）、
（ｂ）は第３図（ａ）、 （ｂ）と同様な油を用いた場
合の作用説明図、第５図は従来のロークリ圧縮機の調心
装置の一例を示す縦断面図、第７図および第６図は従来
の他側による調心装置による互いに異った問題点を説明
するための図である。
トクランク軸、２・・・偏心部、３・・・主軸受、４・
シリンダ、５・ ローリングピストン、６・・副軸受
、１６・・・保持具、エフ・駆動子、１８・・電動機、
１９・・支持台、２０ センサ、２２・・把持具、２３
・χＹ子テーブル２４・・・移動台、２５・昇降機構
。
なお、図中同一符号は同一または相当部分を示す。
代理人 大 岩 増 雄（外２名）
オ ｌ 図
牙２図
才３図
（６と）
（“ｂン−Ａ−５図
ォ乙図
１′７図
手続補正書ｃ自幻
昭和 年 月 日
６２ Ｂ −３Fig. 1 is a side sectional view showing an alignment device for a rotary compressor according to an embodiment of the present invention with the main and sub bearings set, Fig. 2 is a side sectional view when positioning is completed, and Fig. 3(a). , (b
) is an explanatory diagram of the action when no oil is used with the crankshafts at different positions in the rotational direction, Figure 4(a),
(b) is an explanatory diagram of the effect when using oil similar to that in FIGS. 3(a) and (b), FIG. 5 is a vertical sectional view showing an example of the alignment device of a conventional rotary compressor, and This figure and FIG. 6 are diagrams for explaining different problems caused by the conventional alignment device on the other side. Crankshaft, 2... Eccentric part, 3... Main bearing, 4...
Cylinder, 5. Rolling piston, 6. Secondary bearing, 16. Holder, F. driver, 18. Electric motor.
19...Support stand, 20 Sensor, 22...Gripper, 23
・χY child table 24...Moving table, 25・Elevating mechanism. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Masuo Oiwa (2 others) O l Zuga 2 figures Sai 3 figures (6 and)
("b-A-5 Figure Otsu Figure 1' 7 Procedural Amendment c Jigigen Showa Year Month Day 62 B-3
Claims (2)
定されたシリンダと共に着脱可能に固定する保持具と、
上記シリンダ上に支持された副軸受を着脱可能に把持す
る把持具と、上記保持具および把持具の一方を水平方向
に移動させるＸＹテーブルと、保持具および把持具の片
方を上下方向に移動させる昇降機構と、上記副軸受の位
置を少なくとも直交する２方向の外周側から測定するセ
ンサとを備え、上記クランク軸が傾いて回転しまたはク
ランク軸のＸおよびＹ方向移動により押付けられて変位
する副軸受の中心位置を上記センサで測定し、この測定
値に基いて主、副軸受の中心が一致しまたは所定方向に
所定量ずれる位置にＸＹテーブルを駆動するようにした
ことを特徴とするロータリ圧縮機および類似機器の調心
装置。(1) A holder that removably fixes the main bearing that supports the crankshaft together with the cylinder fixed on the main bearing;
A gripping tool that removably grips the secondary bearing supported on the cylinder, an XY table that moves one of the holding tool and the gripping tool in the horizontal direction, and an XY table that moves one of the holding tool and the gripping tool in the vertical direction. The sub-bearing is provided with a lifting mechanism and a sensor for measuring the position of the sub-bearing from the outer circumferential side in at least two orthogonal directions, and is displaced when the crankshaft rotates with an inclination or is pressed by movement of the crankshaft in the X and Y directions. A rotary compression device characterized in that the center position of the bearing is measured by the sensor, and based on the measured value, the XY table is driven to a position where the centers of the main and sub bearings coincide or are shifted by a predetermined amount in a predetermined direction. Aligning devices for machines and similar equipment.
て主軸受内で傾いた状態で回転されるようにしてある特
許請求の範囲第１項記載のロータリ圧縮機および類似機
器の調心装置。(2) An alignment device for rotary compressors and similar equipment according to claim 1, wherein the crankshaft is rotated in an inclined state within the main bearing by a driver provided below the holder. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19225986A JPS6347517A (en) | 1986-08-18 | 1986-08-18 | Center adjusting device for rotary compressor and similar equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19225986A JPS6347517A (en) | 1986-08-18 | 1986-08-18 | Center adjusting device for rotary compressor and similar equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6347517A true JPS6347517A (en) | 1988-02-29 |
Family
ID=16288311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19225986A Pending JPS6347517A (en) | 1986-08-18 | 1986-08-18 | Center adjusting device for rotary compressor and similar equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6347517A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907097A (en) * | 2009-06-02 | 2010-12-08 | 三菱电机株式会社 | Coaxial bearing assembly method for rotary compressor, rotary compressor, and coaxial bearing assembly device for rotary compressor |
-
1986
- 1986-08-18 JP JP19225986A patent/JPS6347517A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907097A (en) * | 2009-06-02 | 2010-12-08 | 三菱电机株式会社 | Coaxial bearing assembly method for rotary compressor, rotary compressor, and coaxial bearing assembly device for rotary compressor |
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