CN101440808B - Oil surface control device of horizontal rotary compressor - Google Patents
Oil surface control device of horizontal rotary compressor Download PDFInfo
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- CN101440808B CN101440808B CN2008102204506A CN200810220450A CN101440808B CN 101440808 B CN101440808 B CN 101440808B CN 2008102204506 A CN2008102204506 A CN 2008102204506A CN 200810220450 A CN200810220450 A CN 200810220450A CN 101440808 B CN101440808 B CN 101440808B
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Abstract
The invention relates to an oil level control device for a horizontal rotary compressor, which comprises a closed shell of which the internal pressure is a high pressure side; a compression component and a motor are accommodated in the shell; the peripheries of the compression component and the motor are fixed on the inside diameter of the closed shell respectively; the closed shell is divided into an oil chamber, a first motor chamber and a second motor chamber; and a depressurizing device is arranged between the oil chamber, and the first motor chamber and the second motor chamber; and the depressurizing device reduces the pressure in the first motor chamber, the second motor chamber and the oil chamber in sequence. In the invention, oil in the motor chambers can be reclaimed to the oilchamber for oil storage and the oil level control device can continuously supply oil to a compressor mechanism part in any working condition of the compressor. Moreover, the air flow containing oil can be exhausted from an exhaust pipe arranged on a side shell through the motor, so the oil level control device has the same or superior effect of bleeding oil amount reduction compared with a vertical rotary compressor, and can evenly cool a motor winding.
Description
Technical field
The present invention relates to a kind of oil level control of Horizontai rotary compressor, the housing internal pressure that mainly is applicable to air conditioner and refrigerating machine is on high-tension side Horizontai rotary compressor.
Background technique
In recent years, popularize in the trend in the world at rotary compressor, in order to dwindle the system volume of air conditioner, refrigerating machine etc., and in order to enlarge the actual volume of system, the application of Horizontai rotary compressor shows a rising trend.Traditional Horizontai rotary compressor is under different operating modes, the pasta change of enclosure interior is bigger, the oil mass of telling that consequently causes supplying with the shortage of oil of compression assembly and being discharged to system increases, and the reduction of stability that causes and reliability, and be discharged to system telling that oil mass increases and the decreased performance problem that causes; And, also exist for control fuel head and sacrifice and discharge the cooling of gas motor windings, promptly cool off insufficiently, and cause motor to burn easily.
Summary of the invention
Purpose of the present invention aims to provide a kind of pasta simple and reasonable, that housing is interior and changes oil level control little, the reliable Horizontai rotary compressor that operates steadily, to overcome deficiency of the prior art.
Press the oil level control of a kind of Horizontai rotary compressor of this purpose design, the closed shell that comprises the central shaft cross setting, the housing internal pressure is the high pressure side, accommodate compression assembly and motor in the housing, compression assembly comprise hold can free rotating circular piston the cylinder compression chamber, be provided with through hole in it and drive the bent axle of described circular piston, the effect of being stressed so that its front end contact the slide plate of described circular piston periphery, and be installed on the cylinder bi-side and support the main bearing and the supplementary bearing of bent axle, electric machine assembly comprises rotor and stator, the periphery of stator is provided with notch, its structure characteristic is that the periphery of compression assembly and motor is individually fixed on the inwall of closed shell, and closed shell is divided into the oil pocket of the through hole perforate end that includes described bent axle, the both sides of described motor with first motor cavity that forms between the described compression assembly, with being connected of opposite side second motor cavity of outlet pipe; Be provided with dropping equipment between oil pocket, first motor cavity and second motor cavity, the pressure in the motor cavity of winning, second motor cavity and the oil pocket reduced successively by this dropping equipment.
Described dropping equipment comprises the end ring that is arranged on the rotor end in first motor cavity or second motor cavity, end ring is provided with from the end ring groove of inwall to the outer wall perforate, end plate is arranged on the end ring, end ring and end plate surround the end ring space jointly, and the end ring space communicates with first motor cavity or second motor cavity; Perhaps, dropping equipment comprises the end ring that is arranged on the rotor end in first motor cavity or second motor cavity, end plate is arranged on the end ring, end ring and end plate surround the end ring space jointly, the end ring space communicates with first motor cavity or second motor cavity, on the end plate that is communicated with end ring inside the hole is set, the hole communicates with first motor cavity or second motor cavity; Perhaps, dropping equipment comprises the end ring that is arranged on the rotor end in first motor cavity or second motor cavity, end plate is arranged on the end ring, end ring and end plate surround the end ring space jointly, the end ring space communicates with first motor cavity or second motor cavity, in the outside of end ring, at the end fixed cylinder of the bent axle that extends, this cylinder is built-in with the space, and this space communicates with first motor cavity or second motor cavity;
In the hole or the built-in space of cylinder of an end perforate of through hole that runs through bent axle inside on end ring space, end plate, in the fuel feeding cap of the other end perforate of through hole in being arranged on oil pocket; Perhaps, through hole is made of internal diameter different first center hole and second center hole, one end perforate of second center hole is in the end ring space, in the built-in space of hole on the end plate or cylinder, the other end of second center hole communicates with an end of first center hole, second center hole is provided with the sleeve of tubular at the aperture portion branch of first center hole, this sleeve is projected into the inside of first center hole, the sidewall of bent axle is provided with more than one bent axle oil supply hole, this bent axle oil supply hole one end communicates with first center hole, the bent axle oil supply hole the other end communicates with first motor cavity by the oil groove that is arranged in the long bearing, and the other end perforate of first center hole is in the fuel feeding cap; Perhaps, the through hole of bent axle is made of internal diameter different first center hole and second center hole, and bent axle is provided with the oil drainage hole from the first center hole perforate to the end ring space more than, and second center hole is a blind hole;
The fuel feeding cap that has a vent is arranged on the tail end that the minor axis that constitutes supplementary bearing holds.
Described fuel feeding cap directly is socketed on the outer wall that minor axis holds; Perhaps, the fuel feeding cap holds tail end via minor axis and directly extends and form; Perhaps, the fuel feeding cap contacts with the tail surface that minor axis holds, and clamps oily cap and minor axis holds by clamping element.
The cylinder periphery of the cylinder in the described compression assembly is close to the inwall of closed shell, cylinder and motor are divided into second motor cavity, first motor cavity and oil pocket with closed shell inside jointly, cylinder bottom is provided with first by-pass hole, passes first motor cavity with second motor cavity and oil pocket connection with first bypass tube that first by-pass hole wears mutually; Perhaps, the periphery of the main bearing in the described compression assembly is close to the inwall of closed shell, main bearing and motor are divided into second motor cavity, first motor cavity and oil pocket with closed shell inside jointly, the main bearing bottom is provided with second by-pass hole, passes first motor cavity with second motor cavity and oil pocket connection with second bypass tube that second by-pass hole wears mutually; Wherein, the peripheral part of stator is provided with stator hole or the otch that extends through first motor cavity from second motor cavity.
Described first bypass tube is provided with block, is provided with coil spring between the cylinder at the block and the first by-pass hole place.The end that second bypass tube is positioned at oil pocket extends to the top of fuel feeding cap always, and its end is provided with and prevents that oil from returning the oil export of first motor cavity or second motor cavity from the oil pocket adverse current.
The below of described fuel feeding cap is provided with first fuel supply line, and first fuel supply line, one end is communicated with the fuel feeding cap, and the first fuel supply line the other end is communicated with airtight slide plate pump chamber, and the oil in the oil sump is supplied with compression assembly; Perhaps, the bottom of fuel feeding cap is provided with second fuel supply line, and second fuel supply line is connected between first by-pass hole and the fuel feeding cap, and the bottom of second fuel supply line is provided with the oil-sucking hole of perforate in oil sump.
The present invention is fixed on the inwall of closed shell with the peripheral part of compression assembly, and enclosure interior is divided into oil pocket and motor cavity.One end in bent axle internal run-through hole is in the oil pocket perforate, the other end is positioned at motor cavity, in the internal openings of the end ring groove of the rotor that possesses a plurality of grooves from the inwall perforate in outer wall, consequently: the rotation of rotor causes that pressure reduces, and the pressure of oil pocket is lower than the pressure of motor cavity.Therefore, the oil of motor cavity is recovered to oil pocket by bypass tube.
Among the present invention, regardless of the operating mode of compressor, the oil of motor cavity can be recovered to oil pocket and carry out oil storage, can be incessantly to compressor means portion fuel feeding.And, can discharge from the outlet pipe that is installed in side body via motor because contain the air-flow of oil, thus can there be equal and above subtracting to tell the oil mass effect with the vertical rotating compressor, and even cooling motor winding.
Description of drawings
Fig. 1 is vertical sectional structure schematic representation of first embodiment of the invention.
Fig. 2 is that the A-A of Fig. 1 is to the sectional structure schematic representation.
Fig. 3 is that the B-B of Fig. 1 is to the sectional structure schematic representation.
Fig. 4 is vertical sectional structure schematic representation of second embodiment of the invention.
Fig. 5 is that the C-C of Fig. 4 is to the sectional structure schematic representation.
Fig. 6 is that the D-D of Fig. 4 is to the sectional structure schematic representation.
Fig. 7 is the local structure for amplifying schematic representation of Fig. 4.
Fig. 8 is vertical sectional structure schematic representation of third embodiment of the invention.
Fig. 9 is that the E-E of Fig. 8 is to the sectional structure schematic representation.
Figure 10 is vertical sectional structure schematic representation of fourth embodiment of the invention.
Figure 11 is that the F-F of Figure 10 is to the sectional structure schematic representation.
Among the figure: R is a Horizontai rotary compressor, and 2 is closed shell, and 3 is main casing, 4 is side body, and 5 is compression assembly, and 6 is motor, 7 is cylinder, and 8 is bent axle, and 9 is through hole, 11 is main bearing, and 12 is supplementary bearing, and 13 is the cylinder compression chamber, 14 is piston, and 15 is slide plate, and 16 is the cylinder screw, 17 is main shaft, and 18 is countershaft, and 19 is eccentric shaft, 21 is the cylinder periphery, and 22 is oil pocket, and 23 is half slot, 24 is stator, and 25 is rotor, and 26 is first end ring, 26 ' be second end ring, 27 is first motor cavity, 28 is second motor cavity, 29 is outlet pipe, and 30 is motor windings, and 31 is the end ring groove, 32 is end plate, and 33 is second equilibrium block, and 34 hold for minor axis, 35 is vent, and 36 is the fuel feeding cap, and 37 is the slide plate pump chamber, 38 is first fuel supply line, and 39 is muffler, and 41 is first by-pass hole, 41 ' be second by-pass hole, 42 is first bypass tube, 42 ' be second bypass tube, 43 is notch, and 44 is the baffler exhaust port, and 45 is oil sump, 46 is oil, 47 is long bearing, and 48 is the first end ring space, 48 ' be the second end ring space, 49 is first equilibrium block, 51 is first sucking pipe, and 52 is condenser, and 53 is expansion valve, 54 is vaporizer, 61 is stator hole, and 62 is second fuel supply line, and 63 is oil-sucking hole, 64 is first center hole, 65 is second center hole, and 66 is sleeve, and 67 is the bent axle oil supply hole, 68 is oil drainage hole, 69 for prolonging pipe, and 70 is oil export, and 71 is second sucking pipe, 72 is block, and 73 is coil spring.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described.
First embodiment
Referring to Fig. 1-Fig. 3, the closed shell 2 of this Horizontai rotary compressor R is made up of main casing 3 and side body 4, and compression assembly 5 and motor 6 are individually fixed on the inwall of main casing 3.
Compression assembly 5 comprises by the main bearing 11 that supports bent axle 8 and be installed on cylinder 7 bi-side and supplementary bearing 12, is positioned at cylinder 7 centers and is accommodated in the piston 14 and the slide plate 15 that contacts with the periphery slide relative of piston 14 of cylinder compression chamber 13, as shown in Figure 6, these component tighten up by cylinder screw 16.Bent axle 8 is made of main shaft 17, countershaft 18 and eccentric shaft 19, and piston 14 is installed on the eccentric shaft 19, revolution in cylinder compression chamber 13.
The cylinder periphery 21 of cylinder 7 is close to the inwall of main casing 3, almost has no the gap therebetween, generally welds 3 places by the mode of arc welding from the outside of main casing 3.The right side of compression assembly 5 and main casing 3 forms airtight oil pocket 22.Oil sump 45 is formed on oil pocket 22 bottoms.The cavity of taking in motor 6 is divided into left and right two-part by motor 6, and compression assembly 5, motor 6 and 3 common parts of surrounding of main casing are first motor cavity 27, and the part that motor 6 and side body 4 surround is second motor cavity 28.
Motor 6 is made up of with the rotor 25 on the main shaft 17 that is installed in bent axle 8 stator 24 that is fixed on the main casing 3.Stator 24 is provided with staor winding 30, and rotor 25 two ends are provided with the end ring 26 that is formed by aluminium.It is a plurality of from the end ring groove 31 of inwall to the outer wall perforate to be positioned at second end ring 26 of second motor cavity 28 ' be provided with, the end plate 32 and second equilibrium block 33 be installed in successively second end ring 26 ' on, also cover on the end ring groove 31 simultaneously.Run through bent axle 8 inside through hole 9 an end perforate in by second end ring 26 ' and second end ring space 48 of surrounding of end plate 32 '.
Central part is provided with the fuel feeding cap 36 of vent 35, is pressed into the minor axis that constitutes supplementary bearing 12 and holds on 34 the outer wall.The other end perforate of the through hole 9 of bent axle 8 in this fuel feeding cap 36, promptly the two ends of through hole 9 respectively perforate in the second end ring space 48 ' and fuel feeding cap 36 in.First fuel supply line 38 has been installed in the bottom of fuel feeding cap 36.First fuel supply line 38 is connected in airtight slide plate pump chamber 37, and the oil of oil sump 45 is supplied with compression assembly 5.
According to needs are set, this fuel feeding cap also can be directly holds 34 tail surface with minor axis and contacts, and then clamps the fuel feeding cap and minor axis holds by clamping element.Clamping element can be selected thrust block for use.This linkage structure is that the plane joins, and to be pressed into the structure that the minor axis that constitutes supplementary bearing 12 holds on 34 the outer wall different with fuel feeding cap 36 in the aforementioned schemes for they, and aforementioned schemes is that fuel feeding cap 36 is socketed in minor axis closely and holds on 34 the outer wall.
Be installed in main bearing 11 planar surface portion muffler 39 central part and constitute between the long bearing 47 of main bearing 11 and be provided with baffler exhaust port 44.First bypass tube, 42 1 ends are connected 41 li of first by-pass holes that are disposed at cylinder 7 bottoms, and are fixed on the half slot that is arranged on stator 24 notchs 43.The other end perforate of first bypass tube 42 is played the effect of the oil duct that connects second motor cavity 28 and oil pocket 22 in the bottom of second motor cavity 28.Therefore, also can connect second motor cavity 28 and oil pocket 22 with 42 designs of first bypass tube in the outside of closed shell 2.
The diameter of the half slot 23 of notch 43 equates with the external diameter of first bypass tube 42, or slightly little, so first bypass tube 42 can be fixed first bypass tube 42 with vertically light pressure of half slot 23.The reference internal diameter of first bypass tube 42 is in the scope of 5～20mm, but according to the discharge capacity of cylinder 7 and the different differences to some extent of system's purposes.
The following describes effect and the effect of Horizontai rotary compressor R.The gas of low-temp low-pressure is directly sucked in the cylinder compression chamber 13 by the suction pipe 51 that cylinder 7 sides connect, and the gas that becomes High Temperature High Pressure after being compressed is discharged to first motor cavity 27 from the baffler exhaust port 44 of muffler 39.In addition, that these pressurized gas comprise is 51 that return from suction pipe, be blended into the oil in the low-pressure gas, and from the gap of oil sump 45 through pistons 14 and slide plate 15, directly is fed to the oil of cylinder compression chamber 13.
The pressurized gas that are discharged to first motor cavity 27 move to second motor cavity 28 via the air gap as 25 of the motor windings 30 in motor 6 gaps, the notch 43 that is positioned at 4 positions of stator 24 outer walls, stator 24 and rotors.In this process, be included in most coming out of the oil of discharging in the gas from gas separation, drop to the bottom of first motor cavity 27 and second motor cavity 28.Form such freeze cycle then: discharge gas and move to condenser 52 from outlet pipe 29, from expansion valve 53 via vaporizer 54 after, turn back to suction pipe 51.
The end ring groove 31 of high speed rotating, rotor 25 that bent axle 8 and piston 14 are driven is by the linear velocity difference of external diameter in it with respect to gas, make the second end ring space 48 ' interior pressure be lower than the internal pressure of second motor cavity 28, the pressure of this reduction is Δ P.Shape such as this by being provided with end ring groove 31 second end ring 26 ' and second end ring space 48 of surrounding of end plate 32 ', and the method that its pressure is reduced is called step-down power method.
Since perforate in the second end ring space 48 ' the through hole 9 of bent axle 8 be communicated with the inside of the fuel feeding cap 36 that is positioned at countershaft 18 sides, so the pressure of oil pocket 22 is with respect to the also low Δ P of internal pressure of second motor cavity 28.The internal pressure of setting oil pocket 22 is P0, the pressure of first motor cavity 27 is P1, the pressure of second motor cavity 28 is P2, wherein, discharge the pressure P 1 of pressurized gas for the highest from cylinder compression chamber 13 to first motor cavity 27, reduce successively to the pressure P 2 of second motor cavity 28, the pressure P 0 of oil pocket 22 then, i.e. P1＞P2＞P0.The reason of P1＞P2 is because motor 6 air resistances that exist between first motor cavity 27 and second motor cavity 28 cause.Pressure difference between them is generally 10000～1000Pa, i.e. 0.01～0.001Mpa, and such numerical value is scaled fuel head, is about 100～10cm.
During compressor operation, because P1＞P2＞P0, so the oil of first motor cavity 27 after the gaps such as otch 43 that are arranged at stator 24 bottoms move to second motor cavity 28, moves to 45 li of the oil sumps of oil pocket 22 through by-pass hole 41 from first bypass tube 42.Therefore, oil can not be trapped in 28 li of first motor cavity 27 and second motor cavities, and the oily major part of closed shell 2 inside all is stored into 22 li of oil pockets.
Feature of the present invention is: use step-down power method to make the pressure ordering in three cavitys be P1＞P2＞P0, pressurized gas are discharged from the outlet pipe 29 that is disposed at second motor cavity 28, simultaneously, oil is stored in the oil pocket 22, can obtain following effect.
The interference of rotor 25 and oil 46 can not appear causing owing to pasta is high in 28 li of (1) first motor cavity 27 and second motor cavities, thereby can not produce the power of motor loss.
(2) oil of sneaking in the outlet pipe 29 discharge gases can significantly reduce, thereby oil mass is told in the circulation that can reduce in the system of being discharged to.
(3) airtight oil pocket 22 follows the rotation and the gas channel of rotor 25 to separate, so can not disturbed because of the working conditions change of compressor, can guarantee and keep sufficient oil mass.Therefore can give compression assembly 5 well-off oil consistently, incessantly.
(4) cylinder compression chamber 13 temperature of discharging is lower than the discharge gas of motor windings 30, flowing to the process of second motor cavity 28 from first motor cavity 27, and abundant cooling motor winding 30, thereby can prevent motor Yin Gaowen and burn.
So-called step-down power method, be meant to be positioned at second motor cavity, 28 1 sides, be provided to the end of rotor 25, or the end of the bent axle 8 that is connected with rotor 25, along with the rotation of rotor 25, make the pressure of bent axle 8 through holes 9 be lower than the general name of the method for second motor cavity 28.
Therefore, the constituting component of step-down power method as mentioned above, by be arranged on second end ring 26 ' end ring groove 31 and end plate 32 constitute, but be not only limited to the second end ring space 48 that perforate forms in this structure ' bent axle 8 through holes 9.
For example, end ring groove 31 can be set, and on the end plate 32 that is communicated with second end ring 26 ' inside, the hole is set, perhaps also can second end ring 26 ' the outside, have the cylindrical body in space at the end fixing internal of bent axle 8 of lengthening, this hole and inner space communicate with second motor cavity 28 respectively, utilize aforesaid these methods, can reach the purpose that above-mentioned step-down power method will reach along with the rotation of rotor 25.
Second embodiment
Second embodiment is based on first embodiment, at following improvement: the shorteningization of first bypass tube 42, to the simplification of compression assembly 5 fuel feeding, by the gas of the penetration hole 9 in the bent axle 8 and separating of oil.
Referring to Fig. 4-Fig. 6, the peripheral part of stator 24 has been equipped with the stator hole 61 that extends through first motor cavity 27 from second motor cavity 28.Stator hole 61 is positioned at the perforate end of first motor cavity 27, and the other end that has inserted first bypass tube, 42, the first bypass tubes 42 inserts by-pass hole 41.
By being set between block 72 and by-pass hole 41, can in certain length, freely stretch by coil spring 73, the first bypass tubes 42.So, by in advance first bypass tube 42 being contained in the by-pass hole 41, and then when making it be connected on by-pass hole 41 and the stator hole 61, operate more simple.
Among second embodiment, stator hole 61 is arranged on the centre of adjacent notch 43, during fixed stator 24, allows stator hole 61 be positioned at the bottom of main casing 3.Therefore, the oil of first motor cavity 27 and gas move to second motor cavity from the notch 43 of stator hole 61 both sides, stir to accumulate in the oil of second motor cavity, 28 bottoms, thereby prevent that gas from sneaking into 61 li of stator holes, reach and reduce the effect that outlet pipe 29 is told oil.In oil pocket 22, the second L shaped fuel supply line 62 is connected between by-pass hole 41 and the fuel feeding cap 36.The bottom of second fuel supply line 62 is provided with the oil-sucking hole 63 of perforate in oil sump 45.
Referring to Fig. 7, both constitute the through hole 9 of bent axle 8 by different first center hole 64 of internal diameter and second center hole 65, in the hole or the built-in space of cylinder of one end perforate of second center hole 65 on end ring space, end plate, the other end of second center hole 65 communicates with an end of first center hole 64, and the other end perforate of first center hole 64 is in the fuel feeding cap.Second center hole 65 has partly connected the sleeve 66 of tubular in the perforate of first center hole 64, and this sleeve 66 is projected into the inside of first center hole 64.
After the Horizontai rotary compressor R of this structure entry into service, the oil that the Δ P of the second end ring space 48 ' generation makes second motor cavity 28 from stator hole 61 through first bypass tube 42, move on to fuel feeding cap 36 from the second L shaped fuel supply line 62 again, flow into first center hole 64 then.The oil that flows into first center hole 64 rotates synchronously along with the rotation of bent axle 8, on one side draw parabola along the inwall of first center hole 64, Yi Bian move on to second center hole 65.
But, flow into sleeve 66 because oil is difficult, thus from perforate in bent axle 8 peripheries, be generally 3～5 bent axle oil supply hole 67, flow out to first motor cavity 27 via the oil groove that is arranged at long bearing 47 inside.In this flow process, oil is lubricated bent axle 8 and piston 14.
On the other hand, the gas that sucks from the vent 35 of fuel feeding cap 36, and flow into 64 li of first center holes simultaneously with oil from the gas that is blended in the oil that first bypass tube 42 comes out.These gases are because proportion is littler than oil, so easily by the inside of sleeve 66, via end ring space 48, flow out to second motor cavity 28 from second center hole 65.
Therefore, sleeve 66 has just played and has screened oil and the gas that flow into 64 li of first center holes, allows oil flow to first motor cavity 27, allows gas flow to the effect of second motor cavity 28; Consequently have minimizing and be discharged to the oil mass of telling of system side, promote effect simultaneously the fuel feeding of bent axle 8 from outlet pipe 29.When second motor cavity does not have oil for 28 li, when having only gas to flow to 42 li of first bypass tubes, the effect that is arranged on the oil-sucking hole 63 of fuel supply line 62 bottoms is to suck oil from oil sump 45, supplies oil to fuel feeding cap 36 again.
In the present embodiment, add the effect of sleeve 66 mentioned above, and, can shorten the length of first bypass tube 42, thereby simplify assembling work by setting up stator hole 61.And the second L shaped fuel supply line 62 has been simplified the fuel supply method to fuel feeding cap 36, can improve the reliability of fuel feeding.
The 3rd embodiment
Referring to Fig. 8-Fig. 9, present embodiment is provided to step-down power method on the rotor 25 that is positioned at first motor cavity 27.It is blind holes that bent axle 8 is provided with two oil drainage hole 68, the second center holes 65 from 64 perforates of first center hole to the first end ring space 48.The minor axis that extends to countershaft 18 centers holds 34 effects of playing the fuel feeding cap.
In the present embodiment, along with the rotation of rotor 25, the oil and the gas that flow into first center hole 64 from the second L shaped fuel supply line 62 flow out in first motor cavity 27 from oil drainage hole 68.
The pressure of setting in first motor cavity 27 is P1, and the pressure in the oil pocket 22 is P0, and the pressure in second motor cavity 28 is P2, owing to produce pressure drop between the oil pocket 22 and first motor cavity 27, so P1＞P0 is arranged.And the oil that accumulates in first motor cavity 27 will move on to second motor cavity 28.
Because the pressure P 0 of oil pocket 22 is lower than the pressure P 2 of second motor cavity 28, so the oil of second motor cavity 28 can move in the oil pocket 22 by first bypass tube 42.But must be P2＞P0 this moment, in the present embodiment, if motor 6 can make the air resistance between first motor cavity 27 and second motor cavity excessive situation occur, just need be noted.
The 4th embodiment
Referring to Figure 10-Figure 11, present embodiment improves with respect to first embodiment, and after compressor stopped, the oil that is stored in 45 li of oil sumps can be from second bypass tube 42 ' flow out to, second motor cavity 28.Shown among the figure that the periphery that constitutes the main bearing 11 of compression assembly 5 is fixed in the example of main casing 3 inwalls.The periphery of main bearing 11 is fixed in the inwall of main casing 3, second by-pass hole, the 41 ' lining on the main bearing 11 inserted second bypass tube 42 '.Second bypass tube 42 ' L-shaped up crooked in oil pocket 22 has become to prolong pipe 69, extends to the top of fuel feeding cap 36 always, and its end is provided with and prevents that oil from returning the oil export 70 of first motor cavity or second motor cavity from the oil pocket adverse current.
During Horizontai rotary compressor R in present embodiment starting, as described in first embodiment, the oil that first motor cavity 27 and second motor cavity are 28 li is stored in 45 li of oil sumps via second bypass tube 42 ' move to oil pocket 22, and pasta rises.When compressor stopped, the pressure of oil pocket 22, first motor cavity 27 and second motor cavity 28 equated.But if be stored in the pasta position of the oil of 45 li of oil sumps when being lower than oil export 70, oil can be through second bypass tube 42 ' generation adverse current, and gets back to 28 li of second motor cavities.Therefore, oil pocket stores a large amount of oil for 22 li, on the contrary, can reduce the oil mass and the fuel head of above-mentioned motor cavity.
Therefore, present embodiment has such advantage: when compressor was restarted, lubricating compression assembly 5 can will begin in a minute.And, because the oil pole that is trapped in the motor cavity is few, thus when starting common compressor tell oily problem and just avoided.Promptly adopt technological scheme provided by the invention, both can significantly improve the reliability of compressor, can prevent that also the systematic function that the antiemetic oil mass causes reduces.
With respect to first embodiment, the 4th embodiment just bypass tube 42 lengthenings of 22 li of oil pockets, just can bring into play two remarkable results.In addition, further strengthen the oil storage capacity of oil pocket 22 if desired, can be when enlarging oil pocket 22 volumes, as shown in Figure 10 and Figure 11, with second sucking pipe 71 be installed in the oil pocket 22, on the fuel feeding cap 36, as the gas channel of 8 through holes 9 from oil pocket 22 to bent axle, this method also is worth praising highly.
Technology disclosed by the invention does not need the height production technology, just can realize commercialization as long as use traditional vertical rotating technology of compressors.
Claims (6)
1. the oil level control of a Horizontai rotary compressor, the closed shell (2) that comprises the central shaft cross setting, the housing internal pressure is the high pressure side, accommodate compression assembly (5) and motor (6) in the housing, compression assembly comprise hold can free rotating circular piston (14) cylinder compression chamber (13), be provided with through hole (9) in it and drive the bent axle (8) of described circular piston, the effect of being stressed so that its front end contact the slide plate (15) of described circular piston periphery, and be installed on cylinder (7) bi-side and support the main bearing (11) and the supplementary bearing (12) of bent axle, electric machine assembly comprises rotor (25) and stator (24), the periphery of stator is provided with notch (43), the periphery that it is characterized in that compression assembly and motor is individually fixed on the inwall of closed shell, and closed shell is divided into the oil pocket (22) of the through hole perforate end that includes described bent axle, the both sides of described motor with first motor cavity (27) that forms between the described compression assembly, with being connected of opposite side second motor cavity (28) of outlet pipe; Be provided with dropping equipment between oil pocket, first motor cavity and second motor cavity, the pressure in the motor cavity of winning, second motor cavity and the oil pocket reduced successively by this dropping equipment;
Described dropping equipment comprises the end ring that is arranged on the rotor end in first motor cavity or second motor cavity, end ring is provided with from the end ring groove of inwall to the outer wall perforate, end plate (32) is arranged on the end ring, end ring and end plate surround the end ring space jointly, and the end ring space communicates with first motor cavity or second motor cavity; Perhaps, dropping equipment comprises the end ring that is arranged on the rotor end in first motor cavity or second motor cavity, end plate is arranged on the end ring, end ring and end plate surround the end ring space jointly, the end ring space communicates with first motor cavity or second motor cavity, on the end plate that is communicated with end ring inside the hole is set, the hole communicates with first motor cavity or second motor cavity; Perhaps, dropping equipment comprises the end ring that is arranged on the rotor end in first motor cavity or second motor cavity, end plate is arranged on the end ring, end ring and end plate surround the end ring space jointly, the end ring space communicates with first motor cavity or second motor cavity, in the outside of end ring, at the end fixed cylinder of the bent axle (8) that extends, this cylinder is built-in with the space, and this space communicates with first motor cavity or second motor cavity;
In the hole or the built-in space of cylinder of an end perforate of through hole (9) that runs through bent axle inside on end ring space, end plate, in the fuel feeding cap (36) of the other end perforate of through hole in being arranged on oil pocket; Perhaps, through hole is made of internal diameter different first center hole (64) and second center hole (65), one end perforate of second center hole (65) is in the end ring space, in the built-in space of hole on the end plate or cylinder, the other end of second center hole (65) communicates with an end of first center hole (64), second center hole is provided with the sleeve (66) of tubular at the aperture portion branch of first center hole, this sleeve is projected into the inside of first center hole, the sidewall of bent axle is provided with more than one bent axle oil supply hole (67), this bent axle oil supply hole one end communicates with first center hole, the bent axle oil supply hole the other end communicates with first motor cavity by the oil groove that is arranged in the long bearing (47), and the other end perforate of first center hole is in the fuel feeding cap; Perhaps, the through hole of bent axle is made of internal diameter different first center hole and second center hole, and bent axle is provided with the oil drainage hole (68) from the first center hole perforate to the end ring space more than, and second center hole (65) is a blind hole;
The fuel feeding cap that has vent (35) is arranged on the minor axis that constitutes supplementary bearing (12) and holds the tail end of (34).
2. according to the oil level control of the described Horizontai rotary compressor of claim 1, it is characterized in that described fuel feeding cap directly is socketed in minor axis and holds on the outer wall of (34); Perhaps, the fuel feeding cap holds tail end via minor axis and directly extends and form; Perhaps, the fuel feeding cap contacts with the tail surface that minor axis holds, and clamps oily cap and minor axis holds by clamping element.
3. according to the oil level control of the described Horizontai rotary compressor of claim 1, it is characterized in that the cylinder periphery (21) of the cylinder (7) in the described compression assembly (5) is close to the inwall of closed shell (2), cylinder and motor (6) are divided into closed shell inside second motor cavity (28), first motor cavity (27) and oil pocket (22) jointly, cylinder bottom is provided with first by-pass hole (41), passes first motor cavity with second motor cavity and oil pocket connection with first bypass tube (42) that first by-pass hole wears mutually;
Perhaps, the periphery of the main bearing (11) in the described compression assembly (5) is close to the inwall of closed shell (2), main bearing and motor (6) are divided into second motor cavity, first motor cavity and oil pocket with closed shell inside jointly, the main bearing bottom is provided with second by-pass hole (41 '), passes first motor cavity with second motor cavity and oil pocket connection with second bypass tube (42 ') that second by-pass hole wears mutually;
Wherein, the peripheral part of stator (24) is provided with stator hole (61) or the otch that extends through first motor cavity from second motor cavity.
4. according to the oil level control of the described Horizontai rotary compressor of claim 3, it is characterized in that described first bypass tube (42) is provided with block (72), be provided with coil spring (73) between the cylinder (7) at the block and the first by-pass hole place.
5. according to the oil level control of the described Horizontai rotary compressor of claim 3, it is characterized in that a end that described second bypass tube (42 ') is positioned at oil pocket (22) extends to the top of fuel feeding cap (36) always, its end is provided with and prevents that oil from returning the oil export (70) of first motor cavity or second motor cavity from the oil pocket adverse current.
6. according to the oil level control of claim 1 or 2 described Horizontai rotary compressors, the below that it is characterized in that described fuel feeding cap is provided with first fuel supply line (38), first fuel supply line, one end is communicated with the fuel feeding cap, the first fuel supply line the other end is communicated with airtight slide plate pump chamber (37), and the oil in the oil sump (45) is supplied with compression assembly (5); Perhaps, the bottom of fuel feeding cap is provided with second fuel supply line (62), and second fuel supply line is connected between first by-pass hole (41) and the fuel feeding cap, and the bottom of second fuel supply line is provided with the oil-sucking hole (63) of perforate in oil sump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102204506A CN101440808B (en) | 2008-12-26 | 2008-12-26 | Oil surface control device of horizontal rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102204506A CN101440808B (en) | 2008-12-26 | 2008-12-26 | Oil surface control device of horizontal rotary compressor |
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| Publication Number | Publication Date |
|---|---|
| CN101440808A CN101440808A (en) | 2009-05-27 |
| CN101440808B true CN101440808B (en) | 2011-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102204506A Active CN101440808B (en) | 2008-12-26 | 2008-12-26 | Oil surface control device of horizontal rotary compressor |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728156A (en) * | 2013-12-24 | 2015-06-24 | 珠海凌达压缩机有限公司 | Horizontal rotary compressor and oil-feeding structure thereof |
| CN103912500A (en) * | 2014-03-18 | 2014-07-09 | 安徽美芝精密制造有限公司 | Horizontal rotary-type compressor |
| CN105443352A (en) * | 2014-09-02 | 2016-03-30 | 珠海凌达压缩机有限公司 | Horizontal compressor flange plate and horizontal compressor with same |
| CN104314813B (en) * | 2014-10-20 | 2017-06-09 | 广东美芝制冷设备有限公司 | Horizontal compressor |
| CN105221423B (en) * | 2015-10-21 | 2018-06-12 | 安徽美芝精密制造有限公司 | Horizontal compressor |
| CN106894999B (en) * | 2015-12-21 | 2018-09-11 | 珠海凌达压缩机有限公司 | Horizontal compressor and refrigerating plant |
| CN106837799A (en) * | 2017-01-24 | 2017-06-13 | 广东美芝制冷设备有限公司 | Pasta subduer, compressor and refrigeration system for compressor |
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