JPS58170882A - Scroll compressor - Google Patents

Abstract

PURPOSE:To facilitate the positioning of vanes of a scroll compressor, by fixing guide pins higher than the height of a revolving scroll to either of a clamping frame or a shroud, and forming guide holes for receiving the guide pins in the other. CONSTITUTION:A plurality of guide pins 35 are erected on a shroud fixing surface 2a of a frame 2 while guide holes 36 for receiving the guide pins 35 are formed in a frame fixing portion of a shroud 21. The guide holes 36 are aligned correctly with the positions of the guide pins 35. Therefore, the shroud 21 is fixed always at the same position to the frame 2 by fitting the guide holes 36 to the guide pins 35, so that positioning of a scroll vane of a scroll compressor can be facilitated considerably.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a scroll impresor, in particular a sea rod having a fixed scroll blade and a guide to a seven-piece mechanism for fixing the sea rod. [Technical Background and Problems of the Invention] In general, the scroll compressor is provided with a hole so that the assembly process of the fixed scroll blade, the orbiting scroll blade, and the O-mesh can be easily and reliably carried out.・The compressor has spiral-shaped orbiting scroll blades interlocked with spiral-shaped constant-scroll μm blades, and the gas sucked in from the suction port is transferred to the compressor formed between the fixed scroll blades and the orbiting scroll blades. It is confined in a compression chamber, and the volume of the compression chamber is gradually reduced as the orbiting scroll blade rotates.

During this time, the gas pipe is compressed into high-pressure gas, which is then discharged into the discharge chamber through a discharge port provided near the center of the spiral O of the fixed scroll blade.

The principle itself is well known.

In this type of compressor t, the fixed scroll blades and the orbiting scroll blades must mesh with each other with high precision, so it is necessary to accurately position and assemble the two scroll blades. That is, after fully confirming the shapes of both, the meshing point between the two is found while rotating the orbiting scroll blade, and the nose-roud is formed integrally with the fixed scroll blade and extends around the fixed scroll blade. is fitted onto the orbiting scroll in the meshing position, and the nose loud is fixed to the frame to which the orbiting scroll is attached.

However, when assembling such scroll blades, the positioning of the above-mentioned shutter loud, that is, the fixed scroll, cannot be uniformly performed, so there are often variations in the meshing adjustment, resulting in poor meshing. [Objective of the Invention] Therefore, the object of the present invention is to provide a method for meshing a fixed scroll wing and an orbiting scroll wing with high precision. It is an object of the present invention to provide a scroll compressor which can prevent both parts from colliding with each other during assembly and eliminate assembly damage.

[Summary of departure]

In order to achieve the above object, the present invention provides a plurality of guide bins having a large protrusion amount compared to the height of the orbiting scroll blade.
By providing a kite hole protruding from the fixing surface and drilling a kite hole into which the guide bin can be fitted, the fixed scroll wing and the orbiting scroll wing can be engaged with each other. The feature is that Sealoud can always be positioned at a fixed position.

[Embodiments of the invention]

Embodiments of the scroll compressor according to the present invention will be described below with reference to the drawings. In FIG. 1, special number l indicates a closed casing,
A mounting 7 and a member 2 are press-fitted into the inside of the casing l. This mounting frame accommodates KFi! 13
, head hole and bearing hole! is being formed in stages. A drive shaft t is rotatably fitted into the bearing hole j, the shaft head 7 at the upper end of the drive shaft is loosely fitted into the head receiving hole, and the lower end surface 7a of the shaft head 7 is attached to the mounting frame λ. Supported by. Further, the drive shaft 6 extends downward from the casing l, and its lower end is immersed in lubricating oil r stored at the bottom of the casing.

Further, a rotor which constitutes a drive motor is fixed on the axis of the drive shaft, and a stator IO is arranged concentrically on the outside of the rotor, and a stator IQ is placed on the side of the casing l. 〇On the other hand, in the above-mentioned 1-stem head 7, an eccentric hole l/ is formed which is eccentric from the axis of the drive shaft load. Driven shaft of the orbiting scroll shown/
J is loosely fitted, the driven shaft/JK is integrally connected with the blade support disk lhi, and furthermore, l1iiK is the orbiting scroll 9 in which 13 is integrally formed.0 The above orbiting scroll 1lts has a rectangular cross section and is parallel to the true end surface /ja; the wing ventral surface /31. /30. The lower surface of the wing support disk 1 is supported by an Oldham ring 16, which is a ring with a rectangular cross section, and as is clear from FIG. The keys are orthogonal to each other! /7 and II are formed. Of these, the keyway /l is fitted with a diameter-length key provided on the bottom surface of the accommodation chamber 3, while the other keyway 17 is attached to the lower surface of the wing support disk /44, and Above key 1
It is fitted with a key (not shown) that is orthogonal to 9. Therefore, due to the rotation of the drive @t, the driven side・13
makes a circular motion t around the axis of the drive axle load, but due to the action of the /21Q Oldham ring 14, the turning movement ν- causes a turning movement.

A gourd loud ν is fixed above the mounting frame so as to sandwich the orbiting scroll /2, and this gourd loud 2/ has an annular suction chamber 2. The fixed scroll j [#i discharge port in the center of the O spiral] 7 is open. It is preferable to manufacture the same shape and size as the scroll blade /j, and process the blades so that they have exactly the same height.In the suction chamber n, there is a suction vibrator that passes through the casing l and the sea loud ν. Further, a discharge chamber is formed at the junction between the above-mentioned shroud ν and the top plate of the casing l, and a discharge pipe core is connected to this discharge chamber.

Furthermore, an oil passage U is formed in the drive shaft 6, and this oil passage U consists of an inlet oil passage 30, a connecting oil passage 30, and an outlet oil passage 31. Entrance boat co.
a opens at approximately the axial center position of the drive shaft load, and the exit bow) 9
bi Above bearing hole! It opens at the lower position. Further, the outlet oil passage 31 is formed in a hook shape, and the inlet boat 3/a opens at the upper position of the cape receiving hole j.

The outlet bow) 3/1) is opened at a position eccentric from the axis of the drive shaft load, and an oil reservoir chamber 3 formed by a hole wall is formed below the shaft end of the driven shaft 13. has been done. Therefore, when the drive shaft 6 rotates, the exit bow)
31b is in an eccentric position, lubricating oil is supplied into the oil reservoir chamber 32 through the oil supply path 21f under the action of centrifugal force.

Note that there is an oil supply passage 33 that penetrates the driven shaft 13 in the vertical direction.
is formed, and a part of the lubricating oil in the oil reservoir chamber 32 is supplied to an outlet that is between the sliding surfaces of the identification scroll blade and the orbiting scroll blade 15 and that is open in a hanging part of the orbiting scroll blade 15. do.

In addition, the oil supply passage 33 is connected to the oil reservoir chamber 32 and the fixed scroll 1.
123 and the compression chamber 3ψ formed between the orbiting scroll 77113;

According to the embodiment of the present invention, as particularly shown in FIG. 3, a plurality of guide bins 35 are provided protruding from the sea loud fixing surface 2& of the frame λ, and the holes 36 are formed in the guide bins 3j. The guide hole 36 is provided to match the protrusion position exactly, and when the guide hole 36 is fitted onto the guide bin J5, the exposed bar is always fixed at the same position relative to the frame. . Further, the protrusion amount H of the guide bin 3j is set larger than the height h of the orbiting scroll blade 15 (fixed scroll blade; L3O height is also the same).

Since the present invention is configured as described above, when attaching the cylindrical rod U to the frame, first the tip of the guide/35 protruding from the 7th frame comes into contact with the cylindrical tract 1. In this case, the bin height ■ is double scroll wing/
! ; , Since the height h of 2J is also thick, at this point the tip of the fixed scroll wing n provided on the shinobi loud 1 is the orbiting scroll 7111! It is far from the tip of ; and is very loud: 1. 1 in various ways to find the fitting position between the guide screw /3S and the guide hole 36, or alternatively, rotate the orbiting scroll saw to find the appropriate position of force interaction with the fixed scroll blade J. Even if they are connected, both @Is and u will never come into contact.

After such adjustment, the guide hole 3 is fitted onto the guide bin 33, and the shroud 1 is attached to the frame.
Both wings/! ;, ] should be properly engaged.

Note that in this embodiment, the bottle is set up on the frame and a guide hole is drilled in the front hole, but on the contrary, the bottle is set up on the side of the frame and a guide hole is drilled in the bottom of the frame. A guide hole may be provided in the hole.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, a plurality of guide bins having a protrusion amount larger than the height of the orbiting scroll blade are provided protrudingly in the fixed direction of the frame, one of the cylinders, and the other. By drilling a guide hole in which the guide hole can be inserted into the guide hole, the position of the sealoud, that is, the position of the fixed scroll blade, can be easily set at the same position by simply fitting the guide hole and the guide hole. ,
In addition, it has been made possible to avoid the risk of both scroll blades being separated and colliding with each other during this fitting or adjustment of the orbiting scroll blades, so that the meshing assembly of both scroll blades can be completed in an extremely short time and with high precision. At the same time, it is possible to eliminate damage caused to the assembly of both scroll blades and provide a scroll compressor with high durability and low friction.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of the scroll compressor in the Kinoe-〇-embodiment, Fig. 2 is a perspective view showing the Oldham ring, and Fig. 3 is a longitudinal sectional view showing the state of the compressor being assembled. . l・-・cage/g, lko・・orbital scroll, 15
... - Orbiting scroll wing, ν... Shitame loud,...
・Fixed scroll blade, g...-guide bin, 3t...guide hole. Applicant's agent Kiyomi Inomata Figure 1 Figure 2 Figure 3 Indentation

Claims (1)

[Claims] An orbiting scroll wing is attached to the frame via an Oldham mechanism, a searoud is fixed to the frame so as to sandwich the orbiting scroll 1tlr, and a searoud is integrally provided inside the ceiling and engages with the orbiting scroll wing. In a scroll compressor having a fixed scroll x arranged in 1. A scroll compressor, characterized in that a guide hole is provided protruding from the abutting and fixing surface, and a guide hole into which the guide bin can be fitted is bored in the other side of the abutting and fixing surface where the guide bin is not provided.