CN101275556A

CN101275556A - Rotation-type compressor

Info

Publication number: CN101275556A
Application number: CNA2007100570289A
Authority: CN
Inventors: 李宏
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2007-03-28
Filing date: 2007-03-28
Publication date: 2008-10-01

Abstract

The invention discloses a rotary compressor, comprising a closed container composed of a case, an upper cover and a lower cover, an electric mechanical part composed of a stator and a rotor, a compression mechanical part composed of a cylinder, an upper bearing, a lower bearing, a crank, a rolling circle and an oil picking device; the oil picking device is composed of a helical propeller blade on the upper part and two blades which are formed by bending the two sides of the lower end of the propeller blade outwards and extending. According to the rotary compressor, the oil pickup device mounted on the crank is composed of a single component which has a simple structure, therefore the component is easy to process, and the material amount is reduced. In addition, since the components of the compressor and the number of assembling processes, the production cost is lowered.

Description

Rotary compressor

Technical field

The present invention relates to a kind of rotary compressor, the quantity that particularly relates to a kind of part is few, assembling is easy and the low rotary compressor of cost.

Background technique

In general, compressor is a kind of machine of compressed fluid.This compressor is by the seal container with certain inner space, is installed in the electromechanical part that can produce driving force in the seal container and can utilizes the driving force of electromechanical part and the compression mechanical portion of compressed fluid constitutes.Fig. 1 is the rotary compressor longitudinal construction sectional view of prior art.Fig. 2 is bent axle, oil picker and the propeller blade bonding state structural representation among Fig. 1.Fig. 3 is the oil picker inversion state structural perspective among Fig. 2.Fig. 4 is the propeller blade structural perspective among Fig. 2.As Fig. 1～shown in Figure 4, loam cake 4 and lower cover 5 that cylindrical housing 3, the center portion that the seal container of the rotary compressor of this prior art is provided with refrigerant import 1 by a side is provided with refrigerant exit 2 constitute, and the bottom fills lubricant oil.The electromechanical part on seal container top mainly by be fixed on cylindrical housing 3 inwalls stator 11 and the center of stator 11 and can by and stator 11 between the rotor 12 that is rotated of electromagnetic action form.40 of compression mechanical portion that are positioned at the seal container bottom mainly comprise cylinder 45; Be installed in the upper bearing 42 and the lower bearing 43 of cylinder 45 upper and lower end faces respectively; The center portion of running through rotor 12 and cylinder 45, the bottom is formed with eccentric part 31a, the inside center position is run through vertically and is formed with grease channel 9, can together rotate with rotor 12, thereby the rotating force that electromechanical part produces be passed to the bent axle 31 of compression mechanical portion 40; Be enclosed within the outside of eccentric part 31a on the bent axle 31, and can be rotated in the inside cavity of cylinder 45 with compression refrigerant roll the ring 36; With the oily device that picks up that is installed in grease channel 9 interior lower end on the bent axle 31; Describedly pick up oily device by being dome-shaped, its open upper end is inserted and is fixed in the grease channel 9 of bent axle 31 lower ends, bottom centre runs through at the position and is formed with a circular oil-sucking hole 8, and the bottom is immersed in the oil picker 7 that is positioned at seal container bottom lubricant oil and is set in place grease channel 9 inner and spiral propeller blade 10 compositions in oil picker 7 tops.When the rotary compressor of this prior art moves, the rotor 12 at seal container central upper portion position will by and stator 11 between electromagnetic action carry out high speed rotating, drive simultaneously to run through the bent axle 31 at its center and be enclosed within rolling of bent axle 31 bottoms and encircle 36 also together rotations, thereby in the future self-circulation system and the refrigerant that enters cylinder 45 inside through refrigerant import 1 compress, refrigerant through overcompression will drain into electromechanical part from the exhaust port on the not shown upper bearing 42 then, at last from the refrigerant exit 2 that is arranged in loam cake 4 center portions and be expelled back into the circulatory system.In the rotary course of bent axle 31, the propeller blade 10 and the oil picker 7 that are installed in grease channel 9 inside on the bent axle 31 will together rotate with bent axle 31, under the turning effort of propeller blade 10, the lubricant oil that is positioned at the seal container bottom will upwards enter into the inside of grease channel 9 from the circular oil-sucking hole 8 of oil picker 7 bottoms, and discharge from the upper end of bent axle 31, parts to electromechanical part and compression mechanical portion 40 are lubricated thus, to reduce wear.But there is following point in the rotary compressor of this prior art: as mentioned above, because the oily device that picks up that is installed on the bent axle 31 is made up of propeller blade 10 and oil picker 7, number of spare parts, material consumption, production and the assembling procedure of compressor are increased, so the cost of production height.

Summary of the invention

In order to address the above problem, to the object of the present invention is to provide a kind of quantity of part few, assemble easily and the low rotary compressor of cost.

In order to achieve the above object, rotary compressor provided by the invention mainly comprises seal container, electromechanical part and compression mechanical portion; Wherein seal container by a side be provided with the cylindrical housing of refrigerant import, loam cake and the lower cover that the center portion is provided with refrigerant exit constitutes, and the bottom fills lubricant oil; Electromechanical part is positioned at the top of seal container, mainly by be fixed on the cylindrical housing inwall stator and the center of stator and can by and stator between the rotor that is rotated of electromagnetic action form; Compression mechanical portion is positioned at the bottom of seal container, mainly comprises cylinder; Be installed in the upper bearing and the lower bearing of cylinder upper and lower end face respectively; Run through the center portion of rotor and cylinder, the bottom is formed with eccentric part, and the inside center position is run through vertically and is formed with grease channel, can together rotate with rotor, thereby the rotating force that electromechanical part produces be passed to the bent axle of compression mechanical portion; Be enclosed within the outside of eccentric part on the bent axle, and can be rotated the ring that rolls in the inside cavity of cylinder with compression refrigerant; With the oily device that picks up that is installed in grease channel lower end on the bent axle; Describedly pick up oily device by being positioned at top and spiral propeller blade and vertical in opposite direction respectively outwards bending and extend and two blade one forming constitute from the both sides, lower end of propeller blade.

Described propeller blade is arranged on the inside of grease channel on the bent axle, and blade then is positioned at the outside, lower end of bent axle.

Distance between described two blade outer ends is greater than the diameter of grease channel lower end on the bent axle,

Rotary compressor provided by the invention is that the oily device that picks up that will be installed on the bent axle is made of single part, and these parts is simple in structure, thus be easy to processing, and can reduce the consumption of material.In addition, owing to can reduce the parts of composition compressor and the quantity of assembling procedure, therefore can reduce production costs.

Description of drawings

Fig. 1 is the rotary compressor longitudinal construction sectional view of prior art.

Fig. 2 is bent axle, oil picker and the propeller blade bonding state structural representation among Fig. 1.

Fig. 3 is the oil picker inversion state structural perspective among Fig. 2.

Fig. 4 is the propeller blade structural perspective among Fig. 2.

Fig. 5 is for bent axle in the rotary compressor provided by the invention and pick up oily device bonding state structural representation.

Fig. 6 is the oily apparatus structure stereogram that picks up among Fig. 5.

Fig. 7 is for the bent axle among Fig. 5 and pick up oily device bonding state polycrystalline substance schematic representation.

Embodiment

Below in conjunction with the drawings and specific embodiments rotary compressor provided by the invention is elaborated.The parts identical with prior art use identical symbol, and omit its explanation of carrying out.As Fig. 5～Fig. 7 and shown in Figure 1, rotary compressor provided by the invention mainly comprises seal container, electromechanical part and compression mechanical portion 40; Wherein the seal container cylindrical housing 3, the center portion that are provided with refrigerant import 1 by the side loam cake 4 and the lower cover 5 that are provided with refrigerant exit 2 constitutes, and the bottom fills lubricant oil; Electromechanical part is positioned at the top of seal container, mainly by be fixed on cylindrical housing 3 inwalls stator 11 and the center of stator 11 and can by and stator 11 between the rotor 12 that is rotated of electromagnetic action form; Compression mechanical portion 40 is positioned at the bottom of seal container, mainly comprises cylinder 45; Be installed in the upper bearing 42 and the lower bearing 43 of cylinder 45 upper and lower end faces respectively; The center portion of running through rotor 12 and cylinder 45, the bottom is formed with eccentric part 31a, the inside center position is run through vertically and is formed with grease channel 9, can together rotate with rotor 12, thereby the rotating force that electromechanical part produces be passed to the bent axle 31 of compression mechanical portion 40; Be enclosed within the outside of eccentric part 31a on the bent axle 31, and can be rotated in the inside cavity of cylinder 45 with compression refrigerant roll the ring 36; With the oily device 20 that picks up that is installed in grease channel 9 lower ends on the bent axle 31; Describedly pick up oily device 20 by being positioned at top and spiral propeller blade 21 and vertical in opposite direction respectively outwards bending and extend and two blade 22 one forming constitute from the both sides, lower end of propeller blade 21.Described propeller blade 21 is arranged on the inside of grease channel 9 on the bent axle 31, and blade 22 then is positioned at the outside, lower end of bent axle 31.Distance between described two blade 22 outer ends so just can firmly be fixed on the bent axle 31 picking up oily device 20 greater than the diameter of grease channel 9 lower ends on the bent axle 31, does not come off and can not produce.Rotary compressor compression refrigerant process provided by the invention is identical with prior art, therefore no longer is described in detail here.In the rotary course of bent axle 31, be installed in picking up oily device 20 and will together rotating of grease channel 9 lower ends on the bent axle 31 with bent axle 31, thereon under the turning effort of blade 22, the lubricant oil that is positioned at the seal container bottom will directly upwards enter into its inside from the lower end of grease channel 9, and discharge from the upper end of bent axle 31, parts to electromechanical part and compression mechanical portion 40 are lubricated thus, to reduce wear.Because the oily device 20 that picks up in the rotary compressor provided by the invention is that one constitutes, and it is simple in structure, thereby not only can make these parts be easy to processing, and can reduce part and assembling procedure quantity and the material consumption of forming compressor, therefore can reduce production costs.

Claims

1. a rotary compressor mainly comprises seal container, electromechanical part and compression mechanical portion (40); Wherein seal container is provided with the cylindrical housing (3) of refrigerant import (1), loam cake (4) and lower cover (5) formation that the center portion is provided with refrigerant exit (2) by a side, and the bottom fills lubricant oil; Electromechanical part is positioned at the top of seal container, mainly by be fixed on the stator (11) on cylindrical housing (3) inwall and be positioned at stator (11) the center and can by and stator (11) between the rotor (12) that is rotated of electromagnetic action form; Compression mechanical portion (40) is positioned at the bottom of seal container, mainly comprises cylinder (45); Be installed in the upper bearing (42) and the lower bearing (43) of cylinder (45) upper and lower end face respectively; The center portion of running through rotor (12) and cylinder (45), the bottom is formed with eccentric part (31a), the inside center position is run through vertically and is formed with grease channel (9), can together rotate with rotor (12), thereby the rotating force that electromechanical part produces be passed to the bent axle (31) of compression mechanical portion (40); Be enclosed within bent axle (31) and go up the outside of eccentric part (31a), and can be rotated in the inside cavity of cylinder (45) and roll ring (36) with compression refrigerant; Be installed in that bent axle (31) goes up grease channel (9) lower end pick up oily device (20); It is characterized in that: the described oily device (20) that picks up is by being positioned at top and spiral propeller blade (21) and the vertical in opposite direction respectively outwards bending and extending and two blades (22) one formation of forming from the both sides, lower end of propeller blade (21).

2. rotary compressor according to claim 1 is characterized in that: described propeller blade (21) is arranged on the inside that bent axle (31) is gone up grease channel (9), and blade (22) then is positioned at the outside, lower end of bent axle (31).

3. rotary compressor according to claim 1 is characterized in that: the distance between described two blades (22) outer end goes up the diameter of grease channel (9) lower end greater than bent axle (31).