CN206785631U - Rear portion has the horizontal type scroll compressor of oil-gas separation mechanism - Google Patents

Abstract

The utility model discloses the horizontal type scroll compressor that a kind of rear portion has oil-gas separation mechanism, including casing, frame, orbiter, fixed scroll, main shaft, demarcation strip, bearing block, path guide member and discharge pipe, demarcation strip to be arranged in the rear portion of casing；Main shaft includes central oil passage, and the front portion of main shaft is supported by frame, and rear portion is supported by the rolling bearing in bearing block；Path guide member is arranged on the top of demarcation strip, exports the back plate towards casing；Discharge pipe is arranged on the rear of demarcation strip, positioned at the top of casing；Orbiter and fixed scroll respectively include scroll wrap and teeth groove, and the material of orbiter and fixed scroll is aluminium alloy, and the outer surface of the scroll wrap and teeth groove includes hard anodizing horizon.There is hard anodizing horizon on the surface of orbiter and fixed scroll of the present utility model, is not susceptible to adhesion, and reduces the coefficient of friction between dynamic and static scroll plate, improves the Energy Efficiency Ratio of compressor.

Description

Rear portion has the horizontal type scroll compressor of oil-gas separation mechanism

[technical field]

Horizontal type scroll compressor is the utility model is related to, more particularly to a kind of rear portion has the horizontal whirlpool of oil-gas separation mechanism Revolve compressor.

[background technology]

Screw compressor belongs to the compressor mechanical of positive displacement compression, and compression member is made up of orbiter and fixed scroll.

Application No. CN200980127440.0 patent application discloses a kind of horizontal type scroll compressor, its closed container (50) in be separated into by demarcation strip (80) stored compressor means portion and motor space and stored discharge pipe (52) and The discharge space (84) of oil feed pump (70).Set on the top of this demarcation strip the top access (85) that passes through of refrigerant gas and Path guide member (81), this path guide member is located at bottom compared with discharge pipe (52), and extends to closed container side Near face, its area of passage is bigger than the area of passage of discharge pipe.Thus, refrigerant gas promotes to closed container side collision The separation of oil, in addition, even if because gas stream produces the reentrainment of oil, it can also reduce the flowing for being directly communicated to discharge pipe.Whirlpool When the dynamic price fixing of rotation compressor is made using aluminum alloy materials, the dynamic and static scroll plate of aluminium alloy is mutual under high speed and high specific pressure Engagement, easily occurs mutual adhesion, so that compressor failure.In addition, the lubrication of the invention main member needs fuel feeding Pump carrys out fuel feeding, complicated, and failure is more.

[content of the invention]

The dynamic and static scroll plate that the technical problems to be solved in the utility model is to provide a kind of aluminium alloy is not susceptible to each other Adhesion, rear portion there is the horizontal type scroll compressor of oil-gas separation mechanism.

The further technical problems to be solved of the utility model are to provide a kind of simple in construction, and failure is few, rear portion has The horizontal type scroll compressor of oil-gas separation mechanism.

In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is that a kind of rear portion has Oil-gas Separation The horizontal type scroll compressor of mechanism, including casing, frame, orbiter, fixed scroll, main shaft, demarcation strip, bearing block, oil transportation Pipe, path guide member and discharge pipe, demarcation strip are arranged in the rear portion of casing, and the bottom of demarcation strip rear casing includes oil sump, Bearing block is arranged on demarcation strip；Main shaft includes central oil passage, and the front portion of main shaft is supported by frame, and rear portion is by the rolling in bearing block Dynamic bearing supports；Path guide member is arranged on the top of demarcation strip, exports the back plate towards casing；Discharge pipe, which is arranged on, to be separated The rear of plate, positioned at the top of casing；Orbiter and fixed scroll respectively include scroll wrap and teeth groove, orbiter and quiet vortex The material of disk is aluminium alloy, and the outer surface of the scroll wrap and teeth groove includes hard anodizing horizon.

Above-described horizontal type scroll compressor, the thickness of the hard anodizing horizon is 5 μm to 15 μm.

Above-described horizontal type scroll compressor, including oil sealing, the inner chamber of frame is middle pressure chamber；Described bearing block includes Oil sealing bearing bore and shoe cream room, the outer ring of oil sealing are arranged in the oil sealing bearing bore of bearing block, and described shoe cream room is located at oil seal lip Behind；The rear end of main shaft includes oil sealing axle journal, and oil sealing axle journal passes through the lip of oil sealing, inserts described shoe cream room；Petroleum pipeline Upper end connection shoe cream room, lower end is inserted into oil sump.

Above-described horizontal type scroll compressor, bearing block include body, bearing cap and bonnet, and body is held including bearing Hole, the outer ring of rolling bearing are fixed in bearing bearing bore, and the inner ring of rolling bearing is fixed on the installation axle journal at main shaft rear portion；Axle The rear end that lid is fixed on body is held, the endoporus of bearing cap is through hole, and described through hole includes described oil sealing bearing bore；Bonnet is fixed In the rear end of bearing cap, after cover the mounting hole including petroleum pipeline, described mounting hole leads to oil sealing bearing bore.

Above-described horizontal type scroll compressor, the oil sealing are lip type outside framework oil seals.

Above-described horizontal type scroll compressor, including oil sealing jump ring, the endoporus of bearing cap include jump-ring slot, oil sealing jump ring In jump-ring slot, the front end of oil sealing props up oil sealing jump ring.

Above-described horizontal type scroll compressor, discharge pipe are located at the front of path guide member outlet；Path guide portion The sectional area of part is more than the sectional area of discharge pipe.

Above-described horizontal type scroll compressor, oil resistance device, the center of main shaft are included between the endoporus and main shaft of frame Oil duct communicates with the end of main shaft crank throw, is slidably matched between crank throw and orbiter drive hole or is coordinated by needle bearing.

Above-described horizontal type scroll compressor, described oil resistance device is sliding bearing.

There is hard anodizing horizon on the surface of orbiter and fixed scroll of the present utility model, and dynamic and static scroll plate is not Easily stick together, and reduce the coefficient of friction between dynamic and static scroll plate, improve the Energy Efficiency Ratio of compressor.

[brief description of the drawings]

The utility model is described in further detail with reference to the accompanying drawings and detailed description.

Fig. 1 is the profile of the utility model embodiment horizontal type scroll compressor.

Fig. 2 is the partial enlarged drawing at I positions in Fig. 1.

Fig. 3 is the sectional view of the utility model embodiment fixed scroll.

Fig. 4 is the partial enlarged drawing at II positions in Fig. 3.

[embodiment]

The structure of the utility model embodiment horizontal type scroll compressor as shown in Figures 1 to 4, including casing 1, frame 11, Orbiter 12, fixed scroll 13, main shaft (bent axle) 2, main spindle front bearing 20, mainshaft rear bearing 3, bearing block, oil sealing 4, separate Plate 10, path guide member 14, discharge pipe 15, suction line 16 and petroleum pipeline 5, bearing block include body 6, bearing cap 7 and bonnet 8.There is axial arranged central oil passage 201 inside of main shaft 2.

The cavity at the middle part of casing 1 is connected by the high pressure chest C anterior with casing of exhaust passage 21.Demarcation strip 10 is arranged in machine The rear portion of shell, path guide member 14 are arranged on the top of demarcation strip 10, and entrance exports direction towards the cavity at the middle part of casing 1 The back plate 101 of casing 1.Discharge pipe 15 is arranged on the rear of demarcation strip, positioned at the top of casing 1.Due to path guide member 14 Connection effect, the inner chamber A in the rear casing of demarcation strip 10 is also high pressure chest, and inner chamber A bottom is oil sump.

Discharge pipe 15 is located at the front of the outlet of path guide member 14；The sectional area of path guide member 14 is more than discharge pipe 15 sectional area.

The periphery of demarcation strip (oil baffle) 10 is weldingly fixed on casing 1, and the body 6 of bearing block is fixed by screws in point In the endoporus at the middle part of dividing plate 10.

The anterior supporting by main spindle front bearing 20 and sliding bearing in frame 11 of main shaft 2, rear portion is by bearing block In mainshaft rear bearing 3 support.

The inner chamber D of frame 11 is middle pressure shoe cream room (back pressure cavity), and gas, the back of the body are introduced by the back pressure hole on orbiter 12 The intermediate pressure that pressure in pressure chamber is between Suck and exhaust pressure.The sliding bearing 19 installed in the endoporus at the rear portion of frame 11 is made Oil resistance device between main shaft 2, the central oil passage 201 of main shaft 2 communicate with the end of the crank throw of main shaft 2, crank throw and dynamic vortex It is slidably matched between the drive hole of disk 13 or is coordinated by needle bearing.

Mainshaft rear bearing 3 is ball bearing.The endoporus of body 6 is the bearing bearing bore of mainshaft rear bearing 3, mainshaft rear bearing 3 Outer ring be fixed in the bearing bearing bore of body 6, the inner ring of mainshaft rear bearing 3 is fixed on the bearing installation axle journal at the rear portion of main shaft 2 On 202.

Bearing cap 7 is fixed by screws in the rear end of body 6, and the endoporus of bearing cap 7 is through hole, and the through hole holds for oil sealing Hole, the outer ring of oil sealing 4 are arranged in the oil sealing bearing bore of bearing cap 7

Bonnet 8 is fixed by screws in the rear end of bearing cap 7, there is the mounting hole of petroleum pipeline 5 on bonnet 8, before mounting hole End communicates with oil sealing bearing bore.Mounting hole on the upper end connection bonnet 8 of petroleum pipeline 5, lower end is inserted in the oil sump of the bottom of casing 1.

Oil sealing 4 is lip type outside framework oil seal, and the material of the main part of oil sealing 4 is composite high-molecular material, composite high-molecular Material can be the composite high-molecular material containing poly- four ethene, carbon fibre and graphite, this fine containing poly- four ethene, carbon Not only frictional resistance is small for oil sealing made of the composite high-molecular material of peacekeeping graphite, and service life is grown.

The rearmost end of main shaft is the oil sealing axle journal 203 coordinated with oil sealing 4, and there is 1 big chamfering the rear end of oil sealing axle journal 203 204, it is easy to axle journal 204 to be inserted into oil sealing.

Shoe cream room B is pressed in forming in space between oil sealing 4 and bonnet 8.The oil sealing axle journal 203 of the rear end of main shaft 2 passes through oil sealing 4 Lip, shoe cream room B is pressed in insertion.

It is small using as far as possible small oil sealing axle journal, the diameter of oil sealing axle journal 203 in order to further reduce the rotational resistance of main shaft In the installation axle journal 202 of half bearing.

There is jump-ring slot in the endoporus of bearing cap 7, oil sealing jump ring 9 is arranged in jump-ring slot, and the front end of oil sealing 4 props up oil sealing card Spring 9, the rear end of oil sealing 4 have bonnet 8 to fix oil sealing 4.

This structure when mounted, first installs main shaft 2 and bearing 3, is then screwed the bearing cap with oil sealing jump ring 9 7.Install after bearing cap 7 that ecto-entad installs oil sealing 4 into oil sealing bearing bore again.Because oil sealing axle journal 203 has big chamfering 204 to lead To can successfully install oil sealing, finally fix bonnet 8.

The utility model embodiment orbiter 12 and fixed scroll 13 are all aluminum alloy materials, and carry out surface hard There is hard anodizing horizon the outer surface of anodized, dynamic and static scroll wrap and teeth groove.Enter below by taking fixed scroll as an example Row explanation, as shown in Figure 3 and Figure 4, fixed scroll 13 includes scroll wrap 1301 and teeth groove 1302, and it is hard that fixed scroll carried out surface There are hard anodizing horizon 1303, hard anodic oxygen in the outer surface of matter anodized, scroll wrap 1301 and teeth groove 1302 The thickness for changing layer 1303 is 10 μm.The tooth top of the scroll wrap of orbiter 12 directly contacts with the teeth groove of fixed scroll 13, both it Between by film lubrication, wear-resistant pad need not be installed again between orbiter and fixed scroll.

There is hard anodizing horizon on the orbiter of the utility model above example and the surface of fixed scroll, move, Fixed scroll is not susceptible to adhesion, and reduces the coefficient of friction between dynamic and static scroll plate, improves the efficiency of compressor Than.

The utility model above example utilizes the pressure at expulsion of cabinet rear, by the lubrication pressure in oil sump into main shaft In heart oil duct, main movement component is lubricated, it is not necessary to oil feed pump, it is simple in construction, failure is less.

Claims (9)

1. a kind of rear portion has the horizontal type scroll compressor of oil-gas separation mechanism, including casing, frame, orbiter, quiet vortex Disk, main shaft, demarcation strip, bearing block, petroleum pipeline, path guide member and discharge pipe, demarcation strip are arranged in the rear portion of casing, separate The bottom of plate rear casing includes oil sump, and bearing block is arranged on demarcation strip；Main shaft includes central oil passage, and the front portion of main shaft is by machine Frame is supported, and rear portion is supported by the rolling bearing in bearing block；Path guide member is arranged on the top of demarcation strip, exports towards machine The back plate of shell；Discharge pipe is arranged on the rear of demarcation strip, positioned at the top of casing；Orbiter and fixed scroll respectively include being vortexed Tooth and teeth groove, it is characterised in that the material of orbiter and fixed scroll is the outer surface of aluminium alloy, the scroll wrap and teeth groove Including hard anodizing horizon.

2. horizontal type scroll compressor according to claim 1, it is characterised in that the thickness of the hard anodizing horizon is 5 μm to 15 μm.

3. horizontal type scroll compressor according to claim 1, it is characterised in that including oil sealing, the inner chamber of frame is middle pressure Chamber；Described bearing block includes oil sealing bearing bore and shoe cream room, and the outer ring of oil sealing is arranged in the oil sealing bearing bore of bearing block, described Shoe cream room is located at behind oil seal lip；The rear end of main shaft includes oil sealing axle journal, and oil sealing axle journal passes through the lip of oil sealing, inserts institute The shoe cream room stated；The upper end connection shoe cream room of petroleum pipeline, lower end is inserted into oil sump.

4. horizontal type scroll compressor according to claim 3, it is characterised in that bearing block include body, bearing cap and after Lid, body include bearing hole, and the outer ring of rolling bearing is fixed in bearing hole, and the inner ring of rolling bearing is fixed on main shaft rear portion Install on axle journal；Bearing cap is fixed on the rear end of body, and the endoporus of bearing cap is through hole, and described through hole includes described oil sealing Bearing bore；Bonnet is fixed on the rear end of bearing cap, after cover the mounting hole including petroleum pipeline, described mounting hole leads to oil sealing bearing bore.

5. horizontal type scroll compressor according to claim 3, it is characterised in that the oil sealing is lip type outside framework oil seal.

6. horizontal type scroll compressor according to claim 4, it is characterised in that including oil sealing jump ring, the endoporus of bearing cap Including jump-ring slot, oil sealing jump ring is arranged in jump-ring slot, and the front end of oil sealing props up oil sealing jump ring.

7. horizontal type scroll compressor according to claim 3, it is characterised in that discharge pipe is located at the outlet of path guide member Front；The sectional area of path guide member is more than the sectional area of discharge pipe.

8. horizontal type scroll compressor according to claim 3, it is characterised in that include resistance between the endoporus and main shaft of frame Oily device, the central oil passage of main shaft communicate with the end of main shaft crank throw, be slidably matched between crank throw and orbiter drive hole or Coordinated by needle bearing.

9. horizontal type scroll compressor according to claim 8, it is characterised in that described oil resistance device is sliding bearing.