CN2477866Y

CN2477866Y - Compressor skeleton having obliquie oil ditch on its roof

Info

Publication number: CN2477866Y
Application number: CN 01203946
Authority: CN
Inventors: 唐光德; 张龙财
Original assignee: Rechi Precision Co Ltd
Current assignee: Rechi Precision Co Ltd
Priority date: 2001-02-02
Filing date: 2001-02-02
Publication date: 2002-02-20
Anticipated expiration: 2011-02-02

Abstract

The utility model discloses a compressor frame having an oblique oil groove at the top, and aims to provide a compressor part that prevents impurities or fragments from invading the annular body and the rotating contact surface of the rotating scroll of a compressor, has a good lubricating effect, and improves the efficiency of the compressor. The top of the compressor frame is provided with a concave annular body that accommodates the lower end of the rotating scroll and the groove of the eccentric shaft of the compressor, and the lower end of the rotating scroll and the groove of the eccentric shaft are jacketed with each other. The top surface of the annular body is provided with a circular oil groove and at least one oblique oil groove that penetrates the top surface of the annular body, and is communicated with the circular oil groove in an oblique manner. The bottom of the compressor frame is equipped with a central through hole that is communicated with the groove of the electric shaft, and provided with a liner bushing.

Description

The compressor skeleton of the oblique oil duct of end face tool

The utility model belongs to compressor part, the compressor skeleton of the oblique oil duct of particularly a kind of end face tool.

As shown in Figure 1 and Figure 2, known scroll compressor comprises fixed scroll 1a, moving scrollwork 2a, spacing block 3a and skeleton 4a.Fixed scroll 1a and moving scrollwork 2a are meshing with each other and form a plurality of confined space 20a.The volume system of these confined spaces 20a dwindles to central position gradually from outer rim, and this moving scrollwork 2a system is set up on the skeleton 4a, and make moving scrollwork 2a driven with respect to fixed scroll 1a do revolution moving by external force, to impel the operating on low voltage fluid to enter confined space 20a, again via the continuous moving of moving scrollwork 2a, push working fluid and spue with high pressure conditions, with the compression stroke of the fluid of finishing the work by near the discharge opening 10a this fixed scroll 1a central authorities.

Moreover, skeleton 4a is provided with

inner space

40a, 40a lower end, this inner space system is communicated in bush hole 41a, be arranged with eccentric shaft 50a in bush hole 41a, then be provided with eccentric band flange 51a in eccentric shaft 50a upper end, the underpart of eccentric band flange 51a and moving scrollwork 2a is socketed on the inner space 40a of skeleton 4a mutually.

As Fig. 2, shown in Figure 3, the nearly 40a place, this inner space of bush hole 41a is provided with the oil-in 42a that is communicated with oil duct 43a, and the outlet system of oil duct 43a is communicated in the annular oil groove 44a of skeleton 4a end face.Lubricant oil is by the rotation of eccentric shaft 50a, and along bush hole 41a surface flow oil-feed inlet 42a, and in oil duct 43a flows into the annular oil groove 44a of skeleton 4a end face, just in can annular oil groove 44a and lubricant oil on every side rotate surface of contact as skeleton 4a and moving scrollwork 2a and be lubricated, to reduce its abrasion.

Lubricant oil system flow to the surface of contact of skeleton 4a and moving scrollwork 2a via a segment distance, yet, because lubricant oil is mixed unavoidably in flow process and had impurity or chip, and these impurity or chip brought to the surface of contact of skeleton 4a and moving scrollwork 2a, to cause the abrasion of surface of contact.And the relative movement between skeleton 4a and moving scrollwork 2a system will influence the running efficiency of compressor, so mix with being related to the running efficiency of compressor in lubricating well cuts and chip.

The purpose of this utility model provides the compressor skeleton of the oblique oil duct of end face tool of the efficient of a kind of rotation surface of contact of avoiding impurity or chip to enter ring body and moving scrollwork, high lubricating effect, raising compressor.

The utility model top forms and to be arranged with the moving scrollwork underpart of putting mutual socket and the ring body of eccentric shaft groove, and the ring body end face is provided with the annular oil groove that holds lubricant oil and at least one obliquely to be run through the ring body end face and be the oblique oil duct that diagonal cross communicates with annular oil groove; Its bottom is provided with the central through bore that is provided with lining with groove perforation and group.

Wherein:

Oblique oil duct is arranged with downwards respectively with the groove joining place and is connected groove.

Be arranged with the moving scrollwork underpart of putting mutual socket and the ring body of eccentric shaft groove because the utility model top forms, the ring body end face is provided with the annular oil groove that holds lubricant oil and at least one obliquely to be run through the ring body end face and is the oblique oil duct that diagonal cross communicates with annular oil groove; Its bottom is provided with the central through bore that is provided with lining with groove perforation and group.When compressor operation, eccentric shaft drives the moving scrollwork and rotates, the oil duct of lubricant oil between eccentric shaft and the utility model lining flows in the groove of ring body, and drive moving scrollwork underpart by eccentric shaft and rotatablely move, make lubricant oil enter oblique oil duct along groove surfaces by centrifugal force, then through oblique oil duct enter in the annular oil groove and overflow in the utility model ring body surface, use moving scrollwork lower end surface and the utility model ring body end face of lubricating contact rotation, with the moving scrollwork lower end surface of minimizing contact rotation and the abrasion of the utility model end face.And impurity in the lubricant oil or chip flow out the utility model ring body end face through oblique oil duct, prevent impurity or chipping wear moving scrollwork and rotation surface of contact of the present utility model.Rotation surface of contact, the high lubricating effect of not only avoiding impurity or chip to enter ring body and moving scrollwork, and the efficient of raising compressor, thus reach the purpose of this utility model.

Fig. 1, be known compressor arrangement schematic sectional view.

Fig. 2, be known compressor skeletal structure diagrammatic top view.

Fig. 3, be known compressor skeletal structure schematic sectional view.

Fig. 4, be the utility model structural representation plan view.

Fig. 5, be the utility model structural representation sectional view.

Fig. 6, be the utility model structural representation plan view (be provided be connected groove).

Fig. 7, be the utility model structural representation sectional view (be provided be connected groove).

Fig. 8, establish scroll compressor structural representation sectional view of the present utility model for group.

Below in conjunction with accompanying drawing the utility model is further elaborated.

As shown in Figure 8, the compressor skeleton 5 of the oblique oil duct of the utility model end face tool is to be mounted on the scroll compressor of the compressor skeleton 5, shell 1, moving scrollwork 2, fixed scroll 3 and the spacing block 4 that comprise the oblique oil duct of the utility model end face tool.

Moving scrollwork 2 has one group respectively with fixed scroll 3 and is meshing with each other to form the vortex shape votex sheet 20,30 that plural number is a confined space pressing chamber 21.Moving scrollwork 2 is set up on the compressor skeleton 5 of the oblique oil duct of the utility model end face tool, and pressing compressor skeleton 5 end faces in the oblique oil duct of the utility model end face tool by fixed scroll 3, moving scrollwork 2 is to drive with the eccentric shafts 60 in compressor skeleton 5 linings 56 that are hubbed at the oblique oil duct of the utility model end face tool.Compressor skeleton 5 tops of the oblique oil duct of the utility model end face tool are provided with Ou Dan (restriction) ring 50, control moving scrollworks 2 by Ou Dan (restriction) ring 50 and only can revolve round the sun and can't carry out spinning motion.Spacing block 4 is to be fixed in the compressor case 1, and shell 1 inner area is divided into low pressure room 22 and high pressure room 32.Near fixed scroll 3 central authorities, be provided with the discharge opening 31 of conducting low pressure room 22 and high pressure room 32.

After the operating on low voltage fluid sucks in the pressing chamber 21 by suction port, continuous rotation by moving scrollwork 2, push the discharge opening 31 that working fluid runs through by fixed scroll 3 central authorities and spue, the steam outlet pipe 10 on the then compressed machine shell 1 is discharged the working fluid of high pressure conditions outside the compressor.

As Fig. 4, shown in Figure 5, compressor skeleton 5 tops of the oblique oil duct of the utility model end face tool form and are arranged with moving scrollwork 2 underparts of putting mutual socket and the ring body 52 of eccentric shaft 60 grooves 51, and are provided with the annular oil groove 53 that holds lubricant oil and at least one in ring body 52 end faces and obliquely run through ring body 52 end faces and be the oblique oil duct 54 that diagonal cross communicates with annular oil groove 53.As Fig. 6, shown in Figure 7, be arranged with downwards respectively with groove 51 joining places in oblique oil duct 54 and be connected groove 55, can be more easily and enter oblique oil duct 54 swimmingly for lubricant oil.The bottom of the compressor skeleton 5 of the oblique oil duct of the utility model end face tool is provided with groove 51 and connects and organize the central through bore 57 that is provided with lining 56.

When compressor operation, when eccentric shaft 60 drives 2 rotations of moving scrollwork, the oil duct of lubricant oil between compressor skeleton 5 linings 56 of eccentric shaft 60 and the oblique oil duct of the utility model end face tool flows in the groove 51 of ring body 52, and drive moving scrollworks 2 underparts by eccentric shaft 60 and rotatablely move, lubricant oil is entered in the oblique oil duct 54 along groove 51 surfaces by centrifugal force, then through oblique oil duct 54 enter in the annular oil groove 53 and overflow in compressor skeleton 5 ring bodies 52 surfaces of the oblique oil duct of the utility model end face tool, use moving scrollwork 2 lower end surfaces of lubricating contact rotation and the rotation surface of contact of compressor skeleton 5 ring bodies 52 end faces of the oblique oil duct of the utility model end face tool, with the abrasion of compressor skeleton 5 end faces that reduce moving scrollwork 2 lower end surfaces that contact rotates and the oblique oil duct of the utility model end face tool.And impurity in the lubricant oil or chip prevent the rotation surface of contact of the compressor skeleton 5 of impurity or chipping wear moving scrollwork 2 and the oblique oil duct of the utility model end face tool through compressor skeleton 5 ring bodies 52 end faces of the oblique oil duct of oblique oil duct 54 outflow the utility model end face tools.

In sum, the compressor skeleton 5 of the oblique oil duct of the utility model end face tool can provide the good lubrication effect and can avoid impurity or chip to enter the compressor skeleton 5 of the oblique oil duct of the utility model end face tool and the rotation surface of contact of moving scrollwork 2, and then improves the running efficiency of compressor.

Claims

1, the compressor skeleton of the oblique oil duct of a kind of end face tool, its top formation is arranged with the moving scrollwork underpart of the mutual socket of storing and the ring body of eccentric shaft groove, and the ring body end face is provided with the annular oil groove that holds lubricant oil; Its bottom is provided with the central through bore that is provided with lining with groove perforation and group; It is characterized in that described ring body end face is provided with at least one and obliquely runs through the ring body end face and be the oblique oil duct that diagonal cross communicates with annular oil groove.

2, the compressor skeleton of the oblique oil duct of end face tool according to claim 1 is characterized in that described oblique oil duct is arranged with respectively with the groove joining place downwards and is connected groove.