JPS6446480U

JPS6446480U -

Info

Publication number: JPS6446480U
Application number: JP14016187U
Authority: JP
Priority date: 1987-09-14
Filing date: 1987-09-14
Publication date: 1989-03-22
Also published as: JPH0223827Y2

Description

[Brief explanation of drawings]

第１図は本考案の容量可変型斜板式圧縮機の一
実施例を示す断面図、第２図は本考案に用いる治
具の構成を示す側面図および正面図、第３図は従
来装置の構成を示す断面図である。１１……シリンダ、１２……シリンダブロツク
、１３……ハウジング、１４……クランク室、１
５……フロントエンドプレート、１６……駆動軸
、１７……ラジアルベアリング、１８……センタ
ボア、１９……ラジアルベアリング、２０……ロ
ータ、２１……スラスト軸受、２２……調整ねじ
、２５……斜板、２６……揺動板、２７……回転
阻止機構、２８……ピストン、２９……ピストン
ロツド、３０……弁板、３１……シリンダヘツド
、３２……吸入室、３３……吐出室、４０……雌
ねじ、５０……治具。 Fig. 1 is a sectional view showing an embodiment of the variable capacity swash plate compressor of the present invention, Fig. 2 is a side view and front view showing the configuration of the jig used in the invention, and Fig. 3 is a diagram of a conventional device. FIG. 3 is a sectional view showing the configuration. 11...Cylinder, 12...Cylinder block, 13...Housing, 14...Crank chamber, 1
5... Front end plate, 16... Drive shaft, 17... Radial bearing, 18... Center bore, 19... Radial bearing, 20... Rotor, 21... Thrust bearing, 22... Adjustment screw, 25... Swash plate, 26... Rocking plate, 27... Rotation prevention mechanism, 28... Piston, 29... Piston rod, 30... Valve plate, 31... Cylinder head, 32... Suction chamber, 33... Discharge chamber , 40...female thread, 50... jig.

Claims

[Scope of utility model registration request]

a cylinder block having a plurality of cylinders and a center bore; a drive shaft extending into a crank chamber adjacent to the cylinder block and rotatably supported by a radial bearing having one end press-fitted into the center bore; an adjustment screw screwed together to adjust the axial position of the drive shaft; a swash plate connected to the drive shaft such that its inclination angle with respect to the drive shaft is variable and rotates together with the drive shaft; a oscillating plate that is relatively rotatably installed on an inclined surface of the plate and performs an oscillating motion when the swash plate rotates due to the rotation of the drive shaft, causing the piston to reciprocate within the cylinder; and the cylinder block. a cylinder head mounted on an end face of the cylinder via a valve plate and provided with a fluid suction chamber and a fluid discharge chamber; It has a communication passage for communicating with the suction chamber, and a control valve that controls opening and closing of the communication passage, and controls the inclination angle of the swash plate by controlling the opening and closing of the communication passage. A variable capacity swash plate compressor in which the compression capacity is changed by changing the stroke of the piston as the angle changes, includes a radial needle bearing disposed in the center bore to support the drive shaft; The relationship between the adjustment screws is characterized in that the root diameter of the center bore internal female thread into which the adjustment screw is screwed is smaller than the outer diameter of the radial needle bearing, and the thread diameter of the female thread is larger than the drive shaft outer diameter. Variable capacity swash plate compressor.