CN100412371C

CN100412371C - Slip cap structure in vortex type compressor

Info

Publication number: CN100412371C
Application number: CNB2003101074682A
Authority: CN
Inventors: 裴俊成
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2003-12-12
Filing date: 2003-12-12
Publication date: 2008-08-20
Anticipated expiration: 2023-12-12
Also published as: CN1626804A

Abstract

The present invention relates to a sliding sleeve structure for scroll compressors. A sliding sleeve is arranged on an eccentric part on the upper end part of a rotating shaft of a scroll compressor. In the sliding sleeve with the inner diameter eccentric with the outer diameter, a machining reference groove used as a reference point for machining the inner diameter is arranged the eccentric part of the sliding sleeve with relatively thick thickness. When the inner diameter is machined after the outer diameter is machined, machining is carried out by using the machining reference groove as reference, and thereby, the present invention has the advantage of easy and accurate machining.

Description

The flip sleeve structure of scroll compressor

Technical field

The invention relates to compressor, particularly relate to a kind of reference point that on flip sleeve, forms machining benchmark, make the flip sleeve structure of its scroll compressor that can process easily.

Background technique

The prior art scroll compressor that is used as compressed machinery on air conditioner or refrigerating machine as shown in Figure 1 and Figure 2.The inboard has the seal container 1 interior top of holding space to be fixed with upper bracket 2, is fixed with lower bracket 3 in its underpart.

Be provided with between upper bracket 2 and the lower bracket 3 by the stator 4 and the mechanism portion 6 that can constitute in stator 4 inboard rotor rotated 5, and adjust the unbalanced equilibrium block BW of rotation when rotor 5 rotations being installed in the upper and lower part of rotor 5.

In the axis hole 5a that the central vertical of rotor 5 forms, be pressed into the running shaft 7 that transfer 5 rotates together, the upper end portion of the running shaft 7 that combines with rotor 5 can be inserted in the supported hole 2a of upper bracket 2 rotatably, and its underpart can be inserted in the supported hole 3a of lower bracket 3 rotatably.

The upside of upper bracket 2 is provided with by being fixed on the static vortex disk 8 on the upper bracket 2 and can being combined in the compression mechanical part 10 that the movable orbiting scroll 9 between static vortex disk 8 and the upper bracket 2 constitutes rotatably, and inserts the eccentric part 7a that is combined with running shaft 7 upper end portion off-centre in the hub portion 11 joining hole 11a of movable orbiting scroll 9 underparts.

And the underpart of running shaft 7 is combined with oil feeder 13, and the lubricant oil 12 of seal container 1 bottom is drunk up the back supplies to compression mechanical part 10 by the oil circuit 7b on the running shaft 7 friction position.

The side of seal container 1 is provided with suction pipe 14 that sucks refrigerant gas and the discharge tube 15 of discharging compressed refrigerant at a certain distance, and on the top of static vortex disk 8 fixing high low pressure demarcation strip 16, separate by suction pipe 14 be drawn into the high-voltage section 21 that the low voltage section 20 that the refrigerant gas of seal container 1 inside retains and the refrigerant gas that sucks were detained before discharge by discharge tube 15 compression mechanical part 10 compression backs.

Be combined with safety check 19 above the static vortex disk 8, safety check 19 is by the valve plate 17 in order not allow the refrigerant gas adverse current of discharging by the tap hole 8a on the static vortex disk 8 open and close, guiding valve plate 17 and make it not allow the valve guide 18 that breaks away from constitute.

Transmit the flip sleeve 22 of rotating eccentricity power when being combined with running shaft 7 rotations on the eccentric part 7a of running shaft 7 to movable orbiting scroll 9.

The scrollwork that unaccounted symbol 8b is a static vortex disk among the figure, 8c are the refrigeration agent ostiums, and 9a is the scrollwork of movable orbiting scroll, and 18a is the pressurized gas ostiums, and 16a is a tap hole, and P is a compression chamber.

If connect power supply to scroll compressor, rotor 5 rotations of mechanism portion 6, and because rotor 5 rotations, running shaft 7 rotations, movable orbiting scroll 9 rotations that combine with running shaft 7 upper end portions.

The distance of movable orbiting scroll 9 from running shaft 7 centers to eccentric part 7a center both throw of eccentric is that radius of gyration is done circumnutation, and the movable orbiting scroll 9 that circles round accepts rotating eccentricity power from the flip sleeve 22 that is combined on the eccentric part 7a, and meanwhile its radius of gyration is restricted.

If movable orbiting scroll 9 circles round, scrollwork 9a is engaged on the scrollwork 8b of static vortex disk 8 and does circumnutation.At this moment, refrigerant gas flow into the low voltage section 20 of seal container 1 by suction pipe 14, the refrigerant gas that flows into flow in the compression chamber P between static vortex disk 8 scrollwork 8b and the movable orbiting scroll 9 scrollwork 9a by the refrigeration agent ostium 8c on the static vortex disk 8, because movable orbiting scroll 9 continues rotation, the volume-diminished of compression chamber P, the compressed while of refrigerant gas moves to central part thus, and therefore compressed refrigeration agent is discharged to the outside by the tap hole 8a of static vortex disk 8.

As above-mentioned, utilize rotating eccentricity power to transmit the flip sleeve 22 of power during compressor operation, realize eccentric processing by machining.Grinding external diameter earlier, is benchmark eccentric processing internal diameter afterwards with the external diameter.

The flip sleeve 22 of this existing scroll compressor is the structure that internal diameter and external diameter slide simultaneously, so internal diameter and external diameter need precision machining, but when formerly processing behind the external diameter eccentric processing internal diameter, do not have reference point, thereby have the problem that is difficult to accurately processing and needs very long process time.

Summary of the invention

The present invention provides a kind of internal diameter processing that can carry out flip sleeve easily for solving the technical problem that exists in the known technology, and the flip sleeve structure of the scroll compressor that can accurately process.

The technological scheme that the present invention takes for the technical problem that exists in the solution known technology is: the flip sleeve structure of scroll compressor of the present invention, be on the eccentric part of running shaft, to be combined with in the scroll compressor of flip sleeve, the machining benchmark groove that becomes reference point when processing internal diameter and certain depth is arranged is arranged above the flip sleeve eccentric part.

Advantage and good effect that the present invention has are: the flip sleeve structure of scroll compressor of the present invention, owing on the thick relatively eccentric part of thickness, the machining benchmark groove is arranged, when behind the processing external diameter, processing internal diameter, with the machining benchmark groove is that benchmark is processed, therefore the effect that easy processing is arranged and can accurately process.

Description of drawings

Fig. 1 is a prior art scroll compressor section of structure:

Fig. 2 is a prior art flip sleeve plan view;

Fig. 3 is the scroll compressor section of structure of flip sleeve structure of the present invention:

Fig. 4 is a flip sleeve oblique drawing of the present invention;

Fig. 5 is flip sleeve plan view of the present invention and machining benchmark groove enlarged view.

Embodiment

For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:

As Fig. 3, Fig. 4, shown in Figure 5, the scroll compressor that possesses flip sleeve structure of the present invention, possess holding space 101 in the inboard, ask that the inside upper part of the seal container 103 that there is lubricant oil 102 101 bottoms is fixed with upper bracket 104 holding sky, its lower inside is fixed with lower bracket 105.

Be provided with the mechanism portion 108 that constitutes by rotor 107 and stator 106 between upper bracket 104 and the lower bracket 105, be pressed into running shaft 109 at the center of rotor 107.

The upper end portion of running shaft 109 is provided with the compression mechanical part 112 that is made of the static vortex disk 110 of compressed refrigerant and movable orbiting scroll 111, expulsion valve 113 is set on static vortex disk 110, prevents refrigerant gas adverse current by the tap hole 110c discharge of static vortex disk 110 central parts.

The side of seal container 103 is provided with to the seal container 103 inboard refrigerant suction pipes 115 that suck refrigeration agent, and the upside of refrigerant suction pipe 115 is provided with the refrigerant discharge leader 116 to seal container 103 outside discharging refrigerants, upside at static vortex disk 110 is provided with high low pressure demarcation strip 117, separates refrigerant gas low voltage section 120 of being detained and the refrigeration agent that the sucks high-voltage section 121 by being detained before refrigerant discharge leader 116 discharges after compression mechanical part 112 compresses of passing through refrigerant suction pipe 115 suctions.

The upper end portion of running shaft 109 is formed with from the eccentric part 109a of 109 misalignment certain distances of running shaft, on eccentric part 109a, be combined with and utilize rotating eccentricity power to transmit the flip sleeve 119 of power, flip sleeve 119 is inserted in the inboard that is pressed into lining 124 that is pressed in the movable orbiting scroll 111 hub portion 111a inner side surfaces, and movable orbiting scroll 111 is circled round.

Flip sleeve 119, therefore inner diameter, ID is formed with the thick relatively eccentric part of thickness 122 to the eccentric certain distance of external diameter 0D, and the machining benchmark groove 123 that becomes reference point when processing internal diameter and certain depth is arranged is arranged above the eccentric part 122.

If the scroll compressor as above-mentioned formation is connected power supply and rotor 107 rotations of mechanism portion 108,109 rotations of 107 li running shafts that are pressed into of rotor, movable orbiting scroll 111 is subjected to being combined in the flip sleeve 119 rotating eccentricity power influence on the running shaft 109 upper end eccentric part 109a and rotates, and the distance of movable orbiting scroll 111 from running shaft 109 centers to eccentric part 109a center both eccentric distance is that radius of gyration is done circumnutation.

If movable orbiting scroll 111 circles round, scrollwork 111a is engaged on the scrollwork 110a of static vortex disk 110 and does circumnutation.At this moment, refrigerant gas flow into the low voltage section 120 of seal container 103 by suction pipe 115, and the refrigerant gas that flows into flow in the compression chamber P between static vortex disk 110 scrollwork 110a and the movable orbiting scroll 111 scrollwork 111a by the refrigeration agent ostium 110b on the static vortex disk 110, because movable orbiting scroll 111 continues rotation, the volume-diminished of compression chamber P, the compressed while of refrigerant gas moves to central part, and therefore compressed refrigeration agent transfers 113 to be discharged to 121 li of high-voltage section by the tap hole 110c and the discharge of static vortex disk 110.

Like this, being combined in the flip sleeve 119 on the running shaft 109 eccentric part 109a, the machining benchmark groove 123 above the eccentric part 122 carries out the eccentric processing of internal diameter for benchmark, thus easy processing not only, and can accurately process.

As above-mentioned, the flip sleeve structure of scroll compressor of the present invention, because the machining benchmark groove of promising internal diameter machining benchmark point on the thick relatively eccentric part of thickness, and when behind the processing external diameter, processing internal diameter, the machining benchmark groove is that benchmark is processed, therefore the effect that easy processing is arranged and can accurately process.

Claims

1. the flip sleeve structure of scroll compressor is combined with on the eccentric part of running shaft in the scroll compressor of flip sleeve, it is characterized in that the flip sleeve eccentric part above have processing to become reference point during internal diameter and the machining benchmark groove (123) of certain depth arranged.