CN201714669U - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
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- CN201714669U CN201714669U CN 201020217517 CN201020217517U CN201714669U CN 201714669 U CN201714669 U CN 201714669U CN 201020217517 CN201020217517 CN 201020217517 CN 201020217517 U CN201020217517 U CN 201020217517U CN 201714669 U CN201714669 U CN 201714669U
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Abstract
A rotary compressor comprises a compressing mechanism, a motor and lubricating oil, wherein the compressing mechanism and the motor are arranged in an enclosed casing, and the lubricating oil is located at the bottom of the enclosed casing. The compressing mechanism consists of a cylinder, a cylinder compressing chamber located in the cylinder, a piston eccentrically running in the cylinder compressing chamber, a sliding sheet disposed in the cylinder compressing chamber, an eccentric crankshaft driving the piston to rotate, a main bearing and an auxiliary bearing, the main bearing and the auxiliary bearing support the eccentric crankshaft, ends of the sliding sheet are connected to the periphery of the piston, a first oil groove is arranged between the main bearing and the cylinder, a second oil groove is disposed between the auxiliary bearing and the cylinder, and the rotary compressor is provided with oil supply devices respectively supplying oil to the first oil groove and the second oil groove. The rotary compressor not only is applicable to single-cylinder rotary compressors, but also is applicable to double-cylinder rotary compressors even multi-cylinder rotary compressors, and has the advantages of simple and reasonable structure, flexible operation, low manufacturing cost, high energy efficiency ratio, high safety degree and wide applicable range.
Description
Technical field
The utility model relates to a kind of rotary compressor.
Background technique
In order to prevent global greenhouse effect, not only chiller plant itself is studied at present, and,,, also carried out research such as R 290 (propane) as the hydrocarbon refrigerant that uses in the air conditioner to chiller plant.But because hydrocarbon refrigerant has strong flammability, and hydrocarbon refrigerant has the characteristic that is very easy to be dissolved in the compressor lubricant oil, and therefore the hydrocarbon refrigerant enclosed volume to air conditioner will reduce as far as possible.Want to reduce the enclosed volume to air conditioner, reducing the compressor lubrication oil mass is effective means.But in housing, press,, just need prevent the gas leakage of two stationary planes between main bearing, supplementary bearing, the cylinder if cut down lubricants capacity in the on high-tension side rotary compressor.Because, after lubricants capacity is cut down, it is difficult that the fuel feeding of two stationary planes that form between main bearing, supplementary bearing and the cylinder will become, and the pressurized gas of enclosure interior leak in the cylinder compression chamber through less clearance on the stationary plane, can cause the performance of compressor and efficient to reduce.
The model utility content
The purpose of this utility model aims to provide a kind of simple and reasonable, flexible operation, fabricating cost is low, Energy Efficiency Ratio is high, safety rate is high, applied widely rotary compressor, to overcome deficiency of the prior art.
A kind of rotary compressor by this purpose design, comprise the lubricant oil that is arranged on compression mechanical part and the motor section in the closed shell and is positioned at the closed shell bottom, compression mechanical part comprises cylinder, be arranged in the cylinder compression chamber of cylinder, in the cylinder compression chamber, make the piston of eccentric operating, be accommodated in the slide plate in the vane slot of cylinder compression chamber, the eccentric crankshaft that driven plunger is rotated and the main bearing and the supplementary bearing that support eccentric crankshaft, the end of slide plate and the periphery of piston are joined, its structure characteristic is to be provided with first oil groove between main bearing and the cylinder, be provided with second oil groove between supplementary bearing and the cylinder, and respectively to the oil supplying device of first oil groove and the second oil groove fuel feeding.
Described oil supplying device comprises first by-pass hole that is arranged on the cylinder, this first by-pass hole is communicated with first oil groove and second oil groove simultaneously, be provided with first oil supply hole in the supplementary bearing, one end of this first oil supply hole communicates with first by-pass hole, the other end of first oil supply hole communicates with an end of fuel supply line, and the other end perforate of fuel supply line is in lubricant oil;
Perhaps, oil supplying device comprises first by-pass hole that is arranged on the cylinder, this first by-pass hole is communicated with first oil groove and second oil groove simultaneously, be provided with second oil supply hole in main bearing or the supplementary bearing, one end of this second oil supply hole communicates with first by-pass hole, and the oil supply gallery in the other end of second oil supply hole and the eccentric crankshaft communicates;
Perhaps, oil supplying device comprises first by-pass hole that is arranged on the cylinder, and this first by-pass hole is communicated with first oil groove and second oil groove simultaneously, and main bearing is provided with and is subjected to oilhole, this opening that is subjected to oilhole is communicated by oilhole with first by-pass hole towards the motor section that is positioned at the cylinder top.
Described oil supply gallery comprises vertical hole of the eccentric crankshaft that is arranged in the eccentric crankshaft and fuel sucking pipe, and the vertical hole of eccentric crankshaft communicates with an end of fuel sucking pipe, and the other end perforate of fuel sucking pipe is in lubricant oil.
Described first oil groove and second oil groove are distinguished in the form of a ring, and the minimum diameter of first oil groove and second oil groove is greater than the maximum outside diameter of cylinder compression chamber; First oil groove and/or second oil groove are arranged on the inboard or the outside of the screw hole on the cylinder, and perhaps, first oil groove and/or second oil groove and screw hole intersect.
Described screw hole is provided with chamfering in the side that the stationary plane with cylinder joins, and first oil groove and/or second oil groove communicate by chamfering.
A kind of rotary compressor, comprise the lubricant oil that is arranged on compression mechanical part and the motor section in the closed shell and is positioned at the closed shell bottom, compression mechanical part comprises first cylinder and second cylinder and central diaphragm, lay respectively at the cylinder compression chamber in these two cylinders, in two cylinder compression chambers, make the piston of eccentric operating respectively, be accommodated in the slide plate in the vane slot of two cylinder compression chambers respectively, the eccentric crankshaft of driven plunger rotation simultaneously and main bearing and the supplementary bearing that supports eccentric crankshaft, the end of two slide plates joins with the periphery of two pistons respectively, it is characterized in that being provided with first oil groove between the main bearing and first cylinder, be provided with second oil groove between the supplementary bearing and second cylinder, the central diaphragm and first cylinder, be respectively arranged with the 3rd oil groove between second cylinder, and respectively to first oil groove, the oil supplying device of second oil groove and the 3rd oil groove fuel feeding.
Described oil supplying device comprises first by-pass hole that is separately positioned on first cylinder and second cylinder, first by-pass hole of first cylinder is communicated with first oil groove and the 3rd oil groove, first by-pass hole of second cylinder is communicated with second oil groove and the 3rd oil groove, central diaphragm is provided with second by-pass hole that is communicated with two the 3rd oil grooves simultaneously, the 3rd oil supply hole is set on the central diaphragm, one end of the 3rd oil supply hole communicates with second by-pass hole, and the oil supply gallery in the other end of the 3rd oil supply hole and the eccentric crankshaft communicates;
Perhaps, oil supplying device comprises first by-pass hole that is separately positioned on first cylinder and second cylinder, first by-pass hole of first cylinder is communicated with first oil groove and the 3rd oil groove, first by-pass hole of second cylinder is communicated with second oil groove and the 3rd oil groove, central diaphragm is provided with second by-pass hole that is communicated with two the 3rd oil grooves simultaneously, main bearing or supplementary bearing are provided with second oil supply hole, one end of this second oil supply hole is communicated with first by-pass hole of first cylinder, perhaps, one end of this second oil supply hole is communicated with first by-pass hole of second cylinder, and the oil supply gallery in the other end of this second oil supply hole and the eccentric crankshaft communicates;
Perhaps, oil supplying device comprises first by-pass hole that is separately positioned on first cylinder and second cylinder, first by-pass hole of first cylinder is communicated with first oil groove and the 3rd oil groove, first by-pass hole of second cylinder is communicated with second oil groove and the 3rd oil groove, central diaphragm is provided with second by-pass hole that is communicated with two the 3rd oil grooves simultaneously, main bearing is provided with and is subjected to oilhole, and this opening that is subjected to oilhole is communicated by oilhole with first by-pass hole of first cylinder towards the motor section that is positioned at the cylinder top;
Perhaps, oil supplying device comprises first by-pass hole that is separately positioned on first cylinder and second cylinder, first by-pass hole of first cylinder is communicated with first oil groove and the 3rd oil groove, first by-pass hole of second cylinder is communicated with second oil groove and the 3rd oil groove, central diaphragm is provided with second by-pass hole that is communicated with two the 3rd oil grooves simultaneously, supplementary bearing is provided with first oil supply hole, one end of this first oil supply hole communicates with first by-pass hole of second cylinder, the other end of first oil supply hole communicates with an end of fuel supply line, and the other end perforate of fuel supply line is in lubricant oil.
Described oil supply gallery comprises vertical hole of the eccentric crankshaft that is arranged in the eccentric crankshaft and fuel sucking pipe, and the vertical hole of eccentric crankshaft communicates with an end of fuel sucking pipe, and the other end perforate of fuel sucking pipe is in lubricant oil.
Described first oil groove and second oil groove are distinguished in the form of a ring, and the minimum diameter of first oil groove and/or second oil groove is greater than the maximum outside diameter of the cylinder compression chamber of each self-corresponding first cylinder and/or second cylinder; First oil groove and/or second oil groove are arranged on the inboard or the outside of the screw hole of each self-corresponding first cylinder and/or second cylinder, and perhaps, the screw hole of first oil groove and/or second oil groove and each self-corresponding first cylinder and/or second cylinder intersects.
Described screw hole is provided with chamfering in the side that the stationary plane with cylinder joins, and first oil groove and/or second oil groove communicate by chamfering.
The utility model passes through at the cylinder stationary plane, the main bearing stationary plane, the oil supplying device that oil groove is set and lubricant oil is provided to oil groove on supplementary bearing stationary plane or the central diaphragm stationary plane, make on each two adjacent stationary plane and produce oil film, leak into problem in the cylinder compression chamber and need not make pressurized gas that big design alteration just can solve enclosure interior via stationary plane, thereby can reduce lubricant oil inclosure amount and refrigerant enclosed volume in the housing, the usefulness and the Security of compressor all are enhanced, agreed with the theme of earth environmental protection, also in industrial production, introduced easily and utilization.
The utility model not only goes for the single cylinder rotary compressor, and be applicable to duplex-cylinder rotary compressor, even being applicable to the multi-cylinder rotary compressor, it has simple and reasonable, flexible operation, fabricating cost is low, Energy Efficiency Ratio is high, safety rate is high and advantage of wide range of application.
Description of drawings
Fig. 1 is vertical sectional structure schematic representation of the utility model first embodiment.
Fig. 2 is the broken section structure for amplifying schematic representation among Fig. 1.
Fig. 3 analyses and observe the structure for amplifying schematic representation for main bearing.
Fig. 4 is the structural representation of looking up of Fig. 3.
Fig. 5 is first embodiment's of cylinder a main TV structure schematic representation.
Fig. 6 is second embodiment's of cylinder a main TV structure schematic representation.
Fig. 7 is the utility model second embodiment's a broken section structure for amplifying schematic representation.
Fig. 8 is the broken section structure for amplifying schematic representation of the utility model second embodiment's application examples.
Fig. 9 is the utility model the 3rd embodiment's a broken section structure for amplifying schematic representation.
Figure 10 is the utility model the 4th embodiment's a broken section structure for amplifying schematic representation.
Among the figure: 1 is rotary compressor, and 2 is closed shell, and 3 is outlet pipe, and 5 is condenser, 6 is vaporizer, and 7 is expansion valve, and 13 is liquid-storage container, and 14 is sucking pipe, 15 is exhaust port, and 16 is eccentric crankshaft, and 16a is the vertical hole of eccentric crankshaft, and 17c is the main bearing spiral chute, 21 is compression mechanical part, and 22 is motor section, and 23 is cylinder, 23a is first cylinder, and 23b is second cylinder, and 24 is the cylinder compression chamber, 25 is main bearing, and 26 is supplementary bearing, and 27 is screw, 28 is piston, and 29 is slide plate, and 30a is first oil groove, 30b is second oil groove, and 30c is the 3rd oil groove, and 31 is fuel sucking pipe, 33 is lubricant oil, and 34 is oil sump, and 36a is first oil supply hole, 36b is second oil supply hole, and 36c is the 3rd oil supply hole, and 37 for being subjected to oilhole, 38a is first by-pass hole, and 38b is second by-pass hole, and 39 is fuel supply line, 40 is screw hole, and 41 is chamfering, and 43 is central diaphragm.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
First embodiment
Referring to Fig. 1, rotary compressor 1 comprise the compression mechanical part 21 that is arranged in the closed shell 2 with and the motor section 22 of top configuration form.The bottom storage of closed shell 2 lubricant oil 33.Compression mechanical part 21 carries out the piston 28 of eccentric operating by cylinder 23, in its cylinder compression chamber 24, with the eccentric crankshaft 16 of these piston 28 synchronous reciprocating slide plates 29, driven plunger 28, form with the main bearing 25 and the supplementary bearing 26 of this eccentric crankshaft sliding support.
In cylinder compression chamber 24, be provided with slide plate 29 and piston 28, after eccentric crankshaft 16 inserts in main bearings 25 and the supplementary bearing 26, fix by screw 27 with main bearing 25 and supplementary bearing 26 lower flat portion on cylinder 23 separately.These two stationary planes are called stationary plane.
Compression mechanical part 21 and the motor section 22 finished by above-mentioned assembling are fixed on the inwall of closed shell 2 together.Thereafter, the welding upper body is finished the assembling of rotary compressor 1.The lubricant oil of enclosing from outlet pipe 3 33 is stored in the oil sump 34 that the bottom of closed shell 2 forms.
The refrigeration system of carrying rotary compressor 1 by from outlet pipe 3 to condenser 5, expansion valve 7, vaporizer 6, liquid-storage container 13 be connected successively with the order of sucking pipe 14.The gas that is inhaled into cylinder compression chamber 24 from sucking pipe 14 is discharged to the closed shell 2 by exhaust port 15, and the pressure in the closed shell 2 is and the identical high pressure side of pressure of discharging from cylinder compression chamber 24.
Referring to Fig. 2, be the detail drawing of compression mechanical part 21.The stationary plane separately of main bearing 25 and supplementary bearing 26 and cylinder 23 is provided with the first oil groove 30a and the second oil groove 30b in the form of a ring.These two oil grooves are communicated with by the first by-pass hole 38a that is provided with on the cylinder 23, and the first by-pass hole 38a is communicated with the first oil supply hole 36a of setting in the supplementary bearing 26.In addition, the cross section of these two oil grooves can be shapes such as semicircle shape, square, rectangular or triangle, and the area of its cross section may diminish to 0.5～2mm2.
The first oil groove 30a and the second oil groove 30b distinguish in the form of a ring, and the minimum diameter of the first oil groove 30a and the second oil groove 30b is greater than the maximum outside diameter of cylinder compression chamber 24; The first oil groove 30a and/or the second oil groove 30b can be arranged on the inboard or the outside of the screw hole 40 on the cylinder 23 as required, and perhaps, the first oil groove 30a and/or the second oil groove 30b and screw hole 40 intersect.
The lower end perforate of the fuel supply line 39 that communicates with the first oil supply hole 36a is in lubricant oil 33.Therefore, the first oil groove 30a and the second oil groove 30b are communicated with lubricant oil 33 usually, and the interior pressure of the pressure of these two oil grooves and closed shell 2 is suitable, is high side pressure.
Referring to Fig. 3, for being configured in the first oil groove 30a on the main bearing 25 and the detail drawing of the first by-pass hole 38a.Here, the configuration of cylinder 23 dots.Main bearing 25 is provided with five screw holes 40, and the first oil groove 30a general arrangement in the form of a ring is in the position of the central part that connects five screw holes 40.
Screw hole 40 on the main bearing 25 is provided with chamfering 41 in the side that the stationary plane with cylinder 23 joins, by screw 27 with main bearing 25 with after cylinder 23 is connected, the first oil groove 30a can not severed by screw 27, the first oil groove 30a links to each other by chamfering 41.The second oil groove 30b that is configured on the supplementary bearing 26 also is same setting.
In rotary compressor, by being positioned at two stationary planes of the fastening main bearing 25 of up and down screw 27, supplementary bearing 26, cylinder 23, the influence of the dispersion of each component is not only arranged, and owing to above-mentioned fastening causing is out of shape, and compression mechanical part 21 is weldingly fixed on the distortion that causes on closed shell 2 inwalls, also can cause plurality of gaps.
Because the pressure of the pressure ratio closed shell 2 of cylinder compression chamber 24 is low, by the gap that the said fixing face produces, the high pressure air cognition in the closed shell 2 leaks in the cylinder compression chamber 24.The pressurized gas of this leakage reexpand in cylinder compression chamber 24, not only cause the refrigerating capacity of compressor to descend, and also can increase power consumption simultaneously, cause the decrease in efficiency of rotary compressor.
In the former design, for solving this problem, will be near main bearing and cylinder stationary plane when closed shell 2 is enclosed lubricant oil, operating pasta at least will be more than supplementary bearing.Therefore, there is oil film in two stationary plane gaps between main bearing and supplementary bearing and the cylinder, so can directly avoid the high pressure air in the closed shell 2 to know from experience the problem that leaks in the cylinder compression chamber 24.
But as shown in Figure 2, when the lubricant oil inclosure amount of closed shell 2 significantly is cut to supplementary bearing 26 following following, just can not fill up the gap between above-mentioned and the stationary plane.But, on main bearing 25 and supplementary bearing 26, dispose the first oil groove 30a, the second oil groove 30b and just can solve above-mentioned problem the device that these oil grooves carry out fuel feeding as first embodiment.
When rotary compressor 1 is in operation, can produce pressure reduction between closed shell 2 and the cylinder compression chamber 24.At this moment, if two gapped words of stationary plane of main bearing 25, supplementary bearing 26 and cylinder 23, the first oil groove 30a or the second oil groove 30b can reduce.But these the first oil groove 30a or the second oil groove 30b communicate with the lubricant oil 33 of oil sump 34, so just can make the gap of stationary plane form oil film seal through the lubricant oil of the first oil groove 30a or the second oil groove 30b.
Therefore, as shown in Figure 2, lubricant oil inclosure amount to rotary compressor 1 is less, even the height of pasta can not arrive under the supplementary bearing 26 nethermost rigor condition, as long as the words of opening end in oil sump 34 of fuel supply line 39, also can provide lubricant oil 33, thereby can prevent the gas leakage that cylinder compression chamber 24 caused by the stationary plane gap the first oil groove 30a, the second oil groove 30b.
, enclose oil mass if increase here, the height of permission pasta is higher than the position of opening of the first oil supply hole 36a of supplementary bearing 26, so just can omit fuel supply line 39.For this pasta condition with higher, also allow to abolish the second oil groove 30b, only to the first oil groove 30a fuel feeding.
The first oil groove 30a on main bearing 25 or the supplementary bearing 26 or the second oil groove 30b not necessarily will pass through screw hole 40 when configuration.This designs example as shown in Figure 5 and Figure 6, and these two oil grooves both can be arranged on the outside of screw hole 40 positions, also can be arranged on the inboard of screw hole 40 positions.
As shown in Figure 5, at least one among the first oil groove 30a and the second oil groove 30b can be to be configured in position, cylinder 23 plane.
If the first oil groove 30a and/or the second oil groove 30b are circle structure, the machined into of this first oil groove 30a and/or the second oil groove 30b is just than being easier to so.But, can when producing bearing, produce the first oil groove 30a and/or the second oil groove 30b when proper by sintered alloy, also can freely design the first oil groove 30a and/or the second oil groove 30b.
Second embodiment
Referring to Fig. 7, in the present embodiment, abolished the first oil supply hole 36a and the fuel supply line 39 that use among first embodiment, disposed the second oil supply hole 36b to supplementary bearing 26 internal openings.The other end of the second oil supply hole 36b is communicated with the second oil groove 30b.Lower end at the vertical hole 16a of eccentric crankshaft is equipped with fuel sucking pipe 31, and this fuel sucking pipe 31 is drawn onto eccentric crankshaft vertical hole 16a inside from oil sump 34 with lubricant oil 33 by the centrifugal force of rotating eccentricity bent axle 16.Periphery and two bearings of these lubricant oil 33 lubricated eccentric crankshafts 16.The lubricant oil that flow into the second oil supply hole 36b in the vertical hole 16a of eccentric crankshaft flows into the first oil groove 30a by the second oil groove 30b and the first by-pass hole 38a.
Referring to Fig. 8, as the oil supplying device of the first oil groove 30a, be equipped with the second oil supply hole 36b in the inside of main bearing 25, can reach identical effect and the effect of the internal configurations second oil supply hole 36b with supplementary bearing 26.Like this, directly in supplementary bearing 26, dispose fuel supply line 39 with respect to first embodiment, supply the situation of lubricant oil 33 to oil groove from oil sump 34, second embodiment's characteristics are can be by inhaling lubricant oil 33 on the fuel sucking pipe 31 that is installed in eccentric crankshaft 16 lower ends, and this also is easier to use at the 4th embodiment's of back duplex-cylinder rotary compressor etc.
All the other are not stated part and see first embodiment, no longer repeat.
The 3rd embodiment
Referring to Fig. 9, disposed in the upper end of main bearing 25 and be subjected to oilhole 37 towards the following STH of motor section 22.Be communicated with the upper end of the first by-pass hole 38a by oilhole 37.By the vertical hole 16a of eccentric crankshaft to the lubricant oil of the inside of main bearing 25 confession, drip from the upper end open portion of main bearing 25 by main bearing spiral chute 17c.Be subjected in the oilhole 37 lubricant oil that stores to the first oil groove 30a fuel feeding, also can be through the first by-pass hole 38a to the second oil groove 30b fuel feeding.Consequently: the 3rd embodiment can reach the effect identical with second embodiment.
All the other are not stated part and see first embodiment, no longer repeat.
The 4th embodiment
Referring to Figure 10, be duplex-cylinder rotary compressor, compression mechanical part comprises the first cylinder 23a and the second cylinder 23b and central diaphragm 43, is provided with the 3rd oil supply hole 36c in the central diaphragm 43.Central diaphragm 43 corresponding above-mentioned two cylinders stationary plane separately is respectively arranged with the 3rd oil groove 30c.On each stationary plane of two cylinders and main bearing 25 and supplementary bearing 26, the first oil groove 30a and the second oil groove 30b have been disposed.The 3rd oil groove 30c has connected the 3rd oil supply hole 36c by the second by-pass hole 38b.
Two first by-pass hole 38a that are provided with in the first cylinder 23a and the second cylinder 23b have been connected above-mentioned four oil grooves, and its effect is can be assigned to above-mentioned four oil grooves from the lubricant oil that the vertical hole 16a of eccentric crankshaft supplies with to the 3rd oil supply hole 36c to go.Thereby can reach the effect identical to the stationary plane that between the first cylinder 23a, the second cylinder 23b and central diaphragm 43, forms and to the stationary plane supplying lubricating oil of main bearing 25 and supplementary bearing 26 with first embodiment.
And, by the 3rd oil supply hole 36c is set in central diaphragm 43, the fuel feeding of the first cylinder 23a and the second cylinder 23b is shortened apart from meeting, make the distribution ratio of lubricant oil more even.But shown in second embodiment, this oil supply hole also can be configured on supplementary bearing 26 or the main bearing 25.
Have various from the first above embodiment to the fuel supply method of oil groove.Such as, replace being subjected to oilhole 37, open second oil supply hole shown in second embodiment in the side of main bearing 25 or supplementary bearing 26, one end of this second oil supply hole is communicated with on the first oil groove 30a or the second oil groove 30b, the other end of this second oil supply hole is towards the internal openings of closed shell 2, end by L shape fuel supply line is connected with this perforate end then, and the scheme that the other end perforate of this L shape fuel supply line waits in lubricant oil 33 can reach the equal action effect with above embodiment.This technological scheme is similar to first embodiment.
Present embodiment can also combine with first embodiment, the 3rd embodiment except above-mentioned design proposal, can realize the purpose of this utility model equally.
All the other are not stated part and see first embodiment, no longer repeat.
Therefore, the oil supplying device aspect of oil groove is not limited to above-mentioned disclosed means, can also in the scope of main points of the present invention, implements various variation.
From the disclosed technological scheme of the present invention of first embodiment to the, four embodiments, comparing with conventional art, it is enclosed oil mass and significantly reduces, under the condition that the pasta of oil sump 34 also extremely descends, also can be, also have the stationary plane with central diaphragm to be lubricated fuel feeding to the stationary plane of cylinder, main bearing, supplementary bearing.
Therefore, not only can be cut down but also also can be resolved for the inclosure oil mass of compressor because of enclosing the problem that oil mass causes system to tell oil mass to increase too much, refrigerant enclosed volume easy such as this class of R290 and the lubricant oil dissolving also may be limited in the minimum zone, and the Security of compressor is greatly improved.
Claims (10)
1. rotary compressor, comprise the lubricant oil (33) that is arranged on compression mechanical part (21) and the motor section (22) in the closed shell (2) and is positioned at closed shell (2) bottom, compression mechanical part (21) comprises cylinder (23), be arranged in the cylinder compression chamber (24) of cylinder (23), in cylinder compression chamber (24), make the piston (28) of eccentric operating, be accommodated in the slide plate (29) in the vane slot of cylinder compression chamber (24), the eccentric crankshaft (16) that driven plunger (28) is rotated and the main bearing (25) and the supplementary bearing (26) that support eccentric crankshaft (16), the periphery of the end of slide plate (29) and piston (28) is joined, it is characterized in that being provided with first oil groove (30a) between main bearing (25) and the cylinder (23), be provided with second oil groove (30b) between supplementary bearing (26) and the cylinder (23), and respectively to the oil supplying device of first oil groove (30a) and second oil groove (30b) fuel feeding.
2. rotary compressor according to claim 1, it is characterized in that described oil supplying device comprises first by-pass hole (38a) that is arranged on the cylinder (23), this first by-pass hole (38a) is communicated with first oil groove (30a) and second oil groove (30b) simultaneously, be provided with first oil supply hole (36a) in the supplementary bearing (26), one end of this first oil supply hole (36a) communicates with first by-pass hole (38a), the other end of first oil supply hole (36a) communicates with an end of fuel supply line (39), and the other end perforate of fuel supply line (39) is in lubricant oil (33);
Perhaps, oil supplying device comprises first by-pass hole (38a) that is arranged on the cylinder (23), this first by-pass hole (38a) is communicated with first oil groove (30a) and second oil groove (30b) simultaneously, be provided with second oil supply hole (36b) in main bearing (25) or the supplementary bearing (26), one end of this second oil supply hole (36b) communicates with first by-pass hole (38a), and the oil supply gallery in the other end of second oil supply hole (36b) and the eccentric crankshaft (16) communicates;
Perhaps, oil supplying device comprises first by-pass hole (38a) that is arranged on the cylinder (23), this first by-pass hole (38a) is communicated with first oil groove (30a) and second oil groove (30b) simultaneously, main bearing (25) is provided with and is subjected to oilhole (37), this opening that is subjected to oilhole (37) is communicated by oilhole (37) with first by-pass hole (38a) towards the motor section (22) that is positioned at cylinder (23) top.
3. rotary compressor according to claim 2, it is characterized in that described oil supply gallery comprises vertical hole (16a) of the eccentric crankshaft that is arranged in the eccentric crankshaft (16) and fuel sucking pipe (31), eccentric crankshaft is indulged hole (16a) and is communicated with an end of fuel sucking pipe (31), and the other end perforate of fuel sucking pipe (31) is in lubricant oil (33).
4. rotary compressor according to claim 1 and 2 is characterized in that described first oil groove (30a) and second oil groove (30b) respectively in the form of a ring, and the minimum diameter of first oil groove (30a) and second oil groove (30b) is greater than the maximum outside diameter of cylinder compression chamber (24); First oil groove (30a) and/or second oil groove (30b) are arranged on the inboard or the outside of the screw hole (40) on the cylinder (23), and perhaps, first oil groove (30a) and/or second oil groove (30b) intersect with screw hole (40).
5. rotary compressor according to claim 4 is characterized in that the side that described screw hole (40) joins at the stationary plane with cylinder (23) is provided with chamfering (41), and first oil groove (30a) and/or second oil groove (30b) communicate by chamfering (41).
6. rotary compressor, comprise the lubricant oil (33) that is arranged on compression mechanical part (21) and the motor section (22) in the closed shell (2) and is positioned at closed shell (2) bottom, compression mechanical part (21) comprises first cylinder (23a) and second cylinder (23b) and central diaphragm (43), lay respectively at the cylinder compression chamber in these two cylinders, in two cylinder compression chambers, make the piston of eccentric operating respectively, be accommodated in the slide plate in the vane slot of two cylinder compression chambers respectively, the eccentric crankshaft (16) of driven plunger rotation simultaneously and main bearing (25) and the supplementary bearing (26) that supports eccentric crankshaft (16), the end of two slide plates joins with the periphery of two pistons respectively, it is characterized in that being provided with first oil groove (30a) between main bearing (25) and first cylinder (23a), be provided with second oil groove (30b) between supplementary bearing (26) and second cylinder (23b), central diaphragm (43) and first cylinder (23a), be respectively arranged with the 3rd oil groove (30c) between second cylinder (23b), and respectively to first oil groove (30a), the oil supplying device of second oil groove (30b) and the 3rd oil groove (30c) fuel feeding.
7. rotary compressor according to claim 6, it is characterized in that described oil supplying device comprises first by-pass hole (38a) that is separately positioned on first cylinder (23a) and second cylinder (23b), first by-pass hole (38a) of first cylinder (23a) is communicated with first oil groove (30a) and the 3rd oil groove (30c), first by-pass hole (38a) of second cylinder (23b) is communicated with second oil groove (30b) and the 3rd oil groove (30c), central diaphragm (43) is provided with second by-pass hole (38b) that is communicated with two the 3rd oil grooves (30c) simultaneously, the 3rd oil supply hole (36c) is set on the central diaphragm (43), one end of the 3rd oil supply hole (36c) communicates with second by-pass hole (38b), and the oil supply gallery in the other end of the 3rd oil supply hole (36c) and the eccentric crankshaft (16) communicates;
Perhaps, oil supplying device comprises first by-pass hole (38a) that is separately positioned on first cylinder (23a) and second cylinder (23b), first by-pass hole (38a) of first cylinder (23a) is communicated with first oil groove (30a) and the 3rd oil groove (30c), first by-pass hole (38a) of second cylinder (23b) is communicated with second oil groove (30b) and the 3rd oil groove (30c), central diaphragm (43) is provided with second by-pass hole (38b) that is communicated with two the 3rd oil grooves (30c) simultaneously, main bearing (25) or supplementary bearing (26) are provided with second oil supply hole (36b), one end of this second oil supply hole (36b) is communicated with first by-pass hole (38a) of first cylinder (23a), perhaps, one end of this second oil supply hole (36b) is communicated with first by-pass hole (38a) of second cylinder (23b), and the oil supply gallery in the other end of this second oil supply hole (36b) and the eccentric crankshaft (16) communicates;
Perhaps, oil supplying device comprises first by-pass hole (38a) that is separately positioned on first cylinder (23a) and second cylinder (23b), first by-pass hole (38a) of first cylinder (23a) is communicated with first oil groove (30a) and the 3rd oil groove (30c), first by-pass hole (38a) of second cylinder (23b) is communicated with second oil groove (30b) and the 3rd oil groove (30c), central diaphragm (43) is provided with second by-pass hole (38b) that is communicated with two the 3rd oil grooves (30c) simultaneously, main bearing (25) is provided with and is subjected to oilhole (37), this opening that is subjected to oilhole (37) is communicated by oilhole (37) with first by-pass hole (38a) of first cylinder (23a) towards the motor section (22) that is positioned at cylinder (23) top;
Perhaps, oil supplying device comprises first by-pass hole (38a) that is separately positioned on first cylinder (23a) and second cylinder (23b), first by-pass hole (38a) of first cylinder (23a) is communicated with first oil groove (30a) and the 3rd oil groove (30c), first by-pass hole (38a) of second cylinder (23b) is communicated with second oil groove (30b) and the 3rd oil groove (30c), central diaphragm (43) is provided with second by-pass hole (38b) that is communicated with two the 3rd oil grooves (30c) simultaneously, supplementary bearing (26) is provided with first oil supply hole (36a), one end of this first oil supply hole (36a) communicates with first by-pass hole (38a) of second cylinder (23b), the other end of first oil supply hole (36a) communicates with an end of fuel supply line (39), and the other end perforate of fuel supply line (39) is in lubricant oil (33).
8. rotary compressor according to claim 7, it is characterized in that described oil supply gallery comprises vertical hole (16a) of the eccentric crankshaft that is arranged in the eccentric crankshaft (16) and fuel sucking pipe (31), eccentric crankshaft is indulged hole (16a) and is communicated with an end of fuel sucking pipe (31), and the other end perforate of fuel sucking pipe (31) is in lubricant oil (33).
9. according to claim 6 or 7 described rotary compressors, it is characterized in that described first oil groove (30a) and second oil groove (30b) respectively in the form of a ring, the minimum diameter of first oil groove (30a) and/or second oil groove (30b) is greater than the maximum outside diameter of the cylinder compression chamber of each self-corresponding first cylinder (23a) and/or second cylinder (23b); First oil groove (30a) and/or second oil groove (30b) are arranged on the inboard or the outside of the screw hole (40) of each self-corresponding first cylinder (23a) and/or second cylinder (23b), perhaps, first oil groove (30a) and/or second oil groove (30b) intersect with the screw hole (40) of each self-corresponding first cylinder (23a) and/or second cylinder (23b).
10. rotary compressor according to claim 9 is characterized in that the side that described screw hole (40) joins at the stationary plane with cylinder is provided with chamfering (41), and first oil groove (30a) and/or second oil groove (30b) communicate by chamfering (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020217517 CN201714669U (en) | 2010-05-28 | 2010-05-28 | Rotary compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020217517 CN201714669U (en) | 2010-05-28 | 2010-05-28 | Rotary compressor |
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| Publication Number | Publication Date |
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| CN201714669U true CN201714669U (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020217517 Expired - Lifetime CN201714669U (en) | 2010-05-28 | 2010-05-28 | Rotary compressor |
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| CN (1) | CN201714669U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996456A (en) * | 2011-09-15 | 2013-03-27 | 安徽美芝精密制造有限公司 | Rotation type compressor oil pump apparatus |
| CN103912501A (en) * | 2014-04-22 | 2014-07-09 | 广东美芝制冷设备有限公司 | Single-cylinder rotary compressor and double-cylinder rotary compressor |
| CN104696227A (en) * | 2015-03-02 | 2015-06-10 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN105090026A (en) * | 2015-07-20 | 2015-11-25 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN106122024A (en) * | 2016-08-05 | 2016-11-16 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor-type compressor |
| CN107676265A (en) * | 2017-10-11 | 2018-02-09 | 珠海凌达压缩机有限公司 | A kind of air cylinder structure and compressor, air conditioner |
| CN109026715A (en) * | 2018-08-21 | 2018-12-18 | 珠海格力节能环保制冷技术研究中心有限公司 | The pump housing and compressor with it |
| WO2019198326A1 (en) * | 2018-04-12 | 2019-10-17 | 株式会社富士通ゼネラル | Rotary compressor |
| CN111120329A (en) * | 2019-12-26 | 2020-05-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor and air conditioner with pump body lubricating structure |
| CN113494456A (en) * | 2020-04-07 | 2021-10-12 | 广东美芝制冷设备有限公司 | Bearing for compressor and compressor |
| CN115163492A (en) * | 2022-08-16 | 2022-10-11 | 广东美芝制冷设备有限公司 | Pump body subassembly, piston compressor and refrigeration plant |
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2010
- 2010-05-28 CN CN 201020217517 patent/CN201714669U/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996456B (en) * | 2011-09-15 | 2015-05-06 | 安徽美芝精密制造有限公司 | Rotation type compressor oil pump apparatus |
| CN102996456A (en) * | 2011-09-15 | 2013-03-27 | 安徽美芝精密制造有限公司 | Rotation type compressor oil pump apparatus |
| CN103912501A (en) * | 2014-04-22 | 2014-07-09 | 广东美芝制冷设备有限公司 | Single-cylinder rotary compressor and double-cylinder rotary compressor |
| CN104696227A (en) * | 2015-03-02 | 2015-06-10 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN105090026A (en) * | 2015-07-20 | 2015-11-25 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN105090026B (en) * | 2015-07-20 | 2017-10-24 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN106122024A (en) * | 2016-08-05 | 2016-11-16 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor-type compressor |
| CN107676265A (en) * | 2017-10-11 | 2018-02-09 | 珠海凌达压缩机有限公司 | A kind of air cylinder structure and compressor, air conditioner |
| US11454239B2 (en) | 2018-04-12 | 2022-09-27 | Fujitsu General Limited | Rotary compressor |
| WO2019198326A1 (en) * | 2018-04-12 | 2019-10-17 | 株式会社富士通ゼネラル | Rotary compressor |
| CN109026715A (en) * | 2018-08-21 | 2018-12-18 | 珠海格力节能环保制冷技术研究中心有限公司 | The pump housing and compressor with it |
| CN109026715B (en) * | 2018-08-21 | 2024-02-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body and compressor with same |
| CN111120329B (en) * | 2019-12-26 | 2021-11-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor and air conditioner with pump body lubricating structure |
| CN111120329A (en) * | 2019-12-26 | 2020-05-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor and air conditioner with pump body lubricating structure |
| CN113494456A (en) * | 2020-04-07 | 2021-10-12 | 广东美芝制冷设备有限公司 | Bearing for compressor and compressor |
| CN113494456B (en) * | 2020-04-07 | 2023-10-24 | 广东美芝制冷设备有限公司 | Bearing for compressor and compressor |
| CN115163492A (en) * | 2022-08-16 | 2022-10-11 | 广东美芝制冷设备有限公司 | Pump body subassembly, piston compressor and refrigeration plant |
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