JPH02207190A - Compressor - Google Patents

Abstract

PURPOSE:To invariably feed a lubricant regardless of the inclination of a compressor by inclining and connecting two pairs of semi-enclosed containers nearly in a V-shape to form an enclosed container and arranging one end of oil feed mechanisms at the center bottom section of the enclosed container. CONSTITUTION:Two pairs of semi-enclosed containers 16 and 16a opened on compressor sections 14 and 14a respectively are inclined and connected to each other so that the compressor sections 14 and 14a are faced together and the compressor sections 14 and 14a are made lower than motor sections 15 and 15a to form an enclosed container 18. Oil feed mechanisms 17 and 17a communicated to the compressor sections 14 and 14a at one end and communicated to the center bottom section 19 of the enclosed container 18 at the other end are arranged. Even when a compressor is obliquely installed, a lubricant 3 is accumulated at the center bottom section of the enclosed container 18, oil feed springs 13 and 13a in oil feed pipes 12 and 12a are submerged in the lubricant 3, and the lubricant 3 can be fed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to compressors used for refrigeration and air conditioning, refrigerators, etc., and particularly relates to improving reliability.

Conventional technology The conventional configuration will be explained using FIG. 2.

1 is an airtight container, and 2 is an electric motor housed in the airtight container 1. 3 is lubricating oil collected at the bottom of the closed container 1. 4 is a shaft that transmits the rotation of the electric motor 2; 5 is an upper bearing that supports the shaft 4; and e is a lower bearing that supports the shaft 4. Numeral 8 is a compression chamber, and numeral 8 is a cylinder that houses the compression chamber 7. 9 is a roller housed within the cylinder 8.

1o is a suction pipe, and 11 is a discharge pipe. 12 is the upper bearing 6
13 is an oil supply spring housed in the oil supply pipe 12.

Note 1. Another set of components similar to those described above is housed in the closed container 1, and the same structures and bottom portions are denoted by the same reference numerals with the suffix a.

The operation of the compressor having the above configuration will be explained.

The rotation of the electric motor 2 is transmitted to the shaft 4, the loaf 9 rolls in the compression chamber 7, and the gas sucked through the suction pipe 10 is continuously compressed. The compressed gas is released into the closed container 1 and discharged from the discharge pipe 11.

As the shaft 4 rotates, the lubricating oil 3 is supplied to the sealed container 1 by the oil supply spring 13 housed in the oil supply pipe 12, after lubricating the sliding parts such as the upper bearing 6, the lower bearing e, and the shaft 4. be discharged.

Although the conventional example described above is a horizontal twin rotary compressor, other compression systems or other oil supply mechanisms that use lubricating oil collected in a closed container may be used.

Problems to be Solved by the Invention However, with the above configuration, when the pressure IMJ machine is installed in a complicated manner, the lubricating oil 3 injected into the closed container 1
The lubricating oil 3 accumulates on the lower side of the electric motor 2 or 2a in the closed container 1, and the oil supply spring 13 in the oil supply pipe 12 is not immersed in the lubricating oil 3. Therefore, the upper bearing 6,
The lubricating oil 3 cannot be supplied to sliding parts such as the lower bearing 6 and the shaft 4, resulting in a drop in efficiency due to lack of lubrication, which is a problem in terms of convenience.

The present invention solves the above-mentioned problems, and provides a compressor that can supply lubricating oil to the sliding parts and prevent a decrease in efficiency due to insufficient lubrication even when the compressor is installed in a cumbersome manner. It provides:

Means for Solving the Problems In order to solve the above problems, the compressor of the present invention houses two sets of semi-closed containers that house a compressor section and a motor section and are open on the compressor section side. are opposed to each other, the compressor part is tilted and welded so that the compressor part is lower than the electric dark part, and the refueling mechanism is provided with one end communicating with the inside of the compressor part and the other end communicating with the central part of the sealed container. It is something that

For Cattle The present invention has the above-described configuration, so that even if the compressor is installed in a complicated manner, the lubricating oil remains collected in the lower central bottom of the closed container, and the lubricating spring in the oil supply pipe is always filled with lubricating oil. Since it is immersed, lubricating oil can be supplied to the sliding parts, and there is no drop in efficiency due to insufficient lubrication, improving reliability.

Example An embodiment of the present invention will be described below with reference to FIG.

Incidentally, the same parts as in the conventional example are given the same reference numerals, and the description thereof will be omitted. 14 is a pressure RN@ section including the cylinder 8, loaf 9, etc.;
16 is DeniIc! 1 includes the 2nd etc. electric motor part, 16 is the pressure w
1 A semi-closed container housing the machine part 14 and the electric motor part 16, 1
7 is a fuel supply mechanism including a fuel supply pipe 12 and a fuel supply spring 13; 18 is a closed container in which the semi-closed container 16 is welded with the compressor section 14 tilted lower than the electric motor section 16; 19 is a closed container 18; Center bottom, 2o is semi-closed container 1
This is the open part on the compressor section 14 side of No. 6.

The operation of the compressor configured as above will be explained below. Even if the compressor is installed in a cumbersome manner, the lubricating oil 3 is stored in a closed container (2 sets of semi-closed containers 16, 16a) tilted and welded so that the compressor section 14 is lower than the electric motor section 16 due to its own weight. The lubricating oil 3 remains in the central bottom 19 of the lubricating oil 3, and the lubricating mechanism 17 remains immersed in the lubricating oil 3.

Therefore, as the shaft 4 rotates, the lubricating oil 3 stored in the oil supply pipe 12 is supplied to the upper bearing 5, lower bearing e, shaft 4, and other sliding parts of the compressor section 14. Therefore, there is no reduction in efficiency due to insufficient lubrication, and reliability can be improved.

Embodiment 1 is explained using a horizontal twin rotary compressor equipped with a spring-based oil supply mechanism.
Other compression type A-pressure machines are also equipped with an oil supply mechanism that lubricates the compressor part with lubricating oil collected in a closed container.
It goes without saying that a compressor may be used in which two sets of pressure @ machine parts and electric motor parts are housed in one sealed container.

As described above, according to this embodiment, the two sets of semi-closed containers 1e and 1θ, which are open on the compressor section 14 side, are heated to a pressure a!
1! an airtight container 18 which is welded at an angle so that the parts 14 face each other and the compressor part 14 is lower than the electric motor part 15;
By providing the oil supply mechanism 17 with one end communicating with the inside of the compressor section 14 and the other end communicating with the central bottom 19 of the closed container 18, even when the compressor is installed in a cumbersome manner, the lubricating oil 3 can be supplied to the closed container 18. Since the oil supply spring 13 inside the oil supply pipe 12 is always immersed in the lubricant oil 3, the lubricant oil 3 can be supplied to the sliding parts, preventing a drop in efficiency due to lack of lubrication, and Reliability can be improved.

Effects of the Invention As described above, the present invention provides two sets of semi-closed containers housing compressor legs and an electric motor section, the compressor section side of which is open. By providing an airtight container that is tilted and welded so that it is lower than the electric motor section, and an oil supply mechanism that communicates with the compressor section at one end and the center bottom of the airtight container at the other end, the compressor becomes less cumbersome. Even when the lubricating oil is installed in a sealed container, the lubricating oil remains collected at the lower center bottom of the sealed container, and the lubricating spring inside the oil supply pipe is always immersed in the lubricating oil, so lubricating oil can be constantly supplied to the sliding parts, and the lubricating oil can be kept lubricated. It is possible to prevent a decrease in efficiency due to shortage and to improve reliability.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a pine-type twin rotary compressor S machine showing an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of a conventional horizontal twin rotary compressor. 14.14a... Compressor section, 16, 15a...
...Electric motor section, 16.16a...Semi-closed container, 17゜17a...Oil supply mechanism, 18...
・・Airtight container, 19・・・・Center bottom of the airtight container,
20, 20a... Opening part on the compressor side.

Claims (1)

[Claims] A compressor section and an electric motor section are housed in two sets of semi-closed containers, each of which is open on the compressor section side, such that the compressor section faces each other and the compressor section is lower than the electric motor section. A compressor comprising a hermetic container welded at an angle, and an oil supply mechanism whose one end communicates with the inside of the compressor section and whose other end opens at the center bottom of the airtight container.