CN206708000U - A kind of 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, main shaft, demarcation strip, bearing block, petroleum pipeline, oil sealing, path guide member and discharge pipe, bearing block is arranged on demarcation strip；The inner chamber of frame is middle pressure chamber；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, and positioned at the top of casing, 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, and 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 described shoe cream room；The upper end connection shoe cream room of petroleum pipeline, lower end is inserted into oil sump.The utility model utilizes the pressure at expulsion of cabinet rear, by the central oil passage of the lubrication pressure in oil sump to main shaft, it is not necessary to oil feed pump, it is simple in construction, failure is less.

Description

A kind of 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.But It is that the lubrication of the invention main member needs oil feed pump to carry out fuel feeding, and complicated, failure is more.

[content of the invention]

The technical problems to be solved in the utility model is to provide a kind of simple in construction, and the few rear portion of failure has Oil-gas Separation The horizontal type scroll compressor of 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, oil sealing, 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 are 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 bearing block In rolling bearing supporting, the inner chamber of frame is middle pressure chamber；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, and positioned at the top of casing, described bearing block includes oil sealing bearing bore and storage Oil pocket, 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 behind oil seal lip；Main shaft Rear end includes oil sealing axle journal, and oil sealing axle journal passes through the lip of oil sealing, inserts described shoe cream room；The upper end connection oil storage of petroleum pipeline Chamber, lower end are 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.

The utility model utilizes the pressure at expulsion of cabinet rear, by the lubrication pressure in oil sump into alignment of shafts oil duct, Main movement component is lubricated, it is not necessary to oil feed pump, it is simple in construction, failure is less.

[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.

[embodiment]

The structure of the utility model embodiment horizontal type scroll compressor as depicted in figs. 1 and 2, 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 shoe cream room B is located at the rear of oil seal lip.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 materials containing poly- four ethene, carbon fibre and graphite Material, not only frictional resistance is small for oil sealing made of this composite high-molecular material containing poly- four ethene, carbon fibre and graphite, and 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 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 (7)

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 be arranged on demarcation strip rear, positioned at the top of casing, it is characterised in that including oil sealing, frame it is interior Chamber 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 on the oil sealing bearing bore of bearing block In, 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 Mouthful, insert described shoe cream room；The upper end connection shoe cream room of petroleum pipeline, lower end is inserted into oil sump.

2. horizontal type scroll compressor according to claim 1, it is characterised in that bearing block include body, bearing cap and after Lid, body includes bearing bearing bore, and the outer ring of rolling bearing is fixed in bearing bearing bore, after the inner ring of rolling bearing is fixed on main shaft On the installation axle journal in portion；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 and held Hole.

3. horizontal type scroll compressor according to claim 1, it is characterised in that the oil sealing is lip type outside framework oil seal.

4. horizontal type scroll compressor according to claim 2, 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.

5. horizontal type scroll compressor according to claim 1, 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.

6. horizontal type scroll compressor according to claim 1, 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.

7. horizontal type scroll compressor according to claim 6, it is characterised in that described oil resistance device is sliding bearing.