CN204900246U - Cylinder and have its rotary compressor's compressing assembly - Google Patents
Cylinder and have its rotary compressor's compressing assembly Download PDFInfo
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- CN204900246U CN204900246U CN201520532523.0U CN201520532523U CN204900246U CN 204900246 U CN204900246 U CN 204900246U CN 201520532523 U CN201520532523 U CN 201520532523U CN 204900246 U CN204900246 U CN 204900246U
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Abstract
The utility model discloses a cylinder and have its rotary compressor's compressing assembly. The cylinder includes: the inboard of cylinder body outside is established to outer cylinder body and interior cylinder body, interior cylinder body, is equipped with between partly and the outer cylinder body of interior cylinder body and is connected the cylinder body, and outer cylinder body, interior cylinder body and connect a limited play stock solution chamber between the cylinder body are connected with the strengthening rib between outer cylinder body and the interior cylinder body, and the cylinder height is H, and strengthening rib axial maximum size is h, 0.15H <= h < H. According to the utility model discloses a cylinder can improve the whole rigidity of cylinder, avoids the cylinder because of the great deformation of the big production of gaseous pressure differential to guarantee the leakproofness between cylinder and the continuous part, and then guarantee that leakproofness, the reliability of compressor are good. Simultaneously can effectively reduce the loss of pressure that breathes in, improve the flow path passageway of breathing in, improve the compressor efficiency. Cylinder simple structure is reasonable, do benefit to and reduce compressor complete machine volume. The restriction of strengthening rib height can be guaranteed to combine better between outer cylinder body and the interior cylinder body.
Description
Technical field
The utility model relates to compressor field, especially relates to a kind of cylinder and has its compression assembly of rotary compressor.
Background technique
Chinese patent literature CN102997521A discloses a kind of liquid storage structure of rotary compressor, this liquid storage structure comprises and is arranged on motor in housing and compression mechanical part, motor is connected with the bent axle in compression mechanical part, this compression mechanical part comprises cylinder, the piston be accommodated in cylinder, done by eccentric shaft driven plunger eccentric rotary bent axle and support the main bearing of bent axle and supplementary bearing, main bearing and supplementary bearing are arranged on cylinder.The model utility point of this liquid storage structure is in cylinder, be provided with liquid-storage container chamber, liquid-storage container chamber is made up of parts such as cylinder, main bearing, supplementary bearings, but this structure also has some problems to have much room for improvement, the rigidity in such as liquid-storage container chamber and volume optimization problem, liquid-storage container chamber sealability problem etc.
Model utility content
The utility model is intended to solve problems of the prior art.For this reason, the utility model aims to provide a kind of cylinder, is provided with liquid storage cylinder in this cylinder, and cylinder rigidity, encapsulation can promote to some extent.
Another object of the present utility model is to provide a kind of compression assembly with the rotary compressor of above-mentioned cylinder.
According to cylinder of the present utility model, described cylinder is used for the compression assembly of compressor, and described cylinder comprises: outer cylinder body, inner cylinder body, described inner cylinder body is located at the inner side of described outer cylinder body, a described inner cylinder body part is circumferentially connected cylinder body with being provided with between described outer cylinder body, described inner cylinder body has axially through center hole to form described compression chamber, described connection cylinder body is formed with the vane slot of compression chamber described in radial communication, described outer cylinder body, liquid storage cylinder is limited between described inner cylinder body and described connection cylinder body, stiffening rib is connected with between described outer cylinder body and described inner cylinder body, wherein, the height of described cylinder is H, the axial overall dimensions of described stiffening rib is h, described H, h meets: 0.15*H≤h < H.
According to the cylinder of the utility model embodiment, by arranging stiffening rib in liquid storage cylinder, the integral rigidity of cylinder can be improved, avoid cylinder because of the large generation of gas differential pressure comparatively large deformation, thus ensure the sealing between cylinder and connected components, and then ensure that the sealing of compressor is good, good reliability.Meanwhile, the setting of stiffening rib, effectively can reduce pressure of inspiration(Pi) loss, improve inspiratory flow paths, thus improve compressor efficiency.And strengthen the rigidity of cylinder due to stiffening rib, therefore the volume of liquid storage cylinder can strengthen when designing, and improves gas-liquid separation ability, this air cylinder structure advantages of simple, is beneficial to and reduces compressor machine volume.The setting of stiffening rib height, can ensure the effect of stiffening rib, makes can be combined as a whole better between the outer cylinder body of cylinder and inner cylinder body, avoids causing the problems such as moving element runs freely, sealing position inefficacy because of stressed excessive deformation simultaneously.
Advantageously, the thickness of described outer cylinder body is n, described n >=2mm.Thus, the sealing of liquid storage cylinder can be strengthened.
In certain embodiments, described cylinder be provided be communicated with described vane slot and described cylinder outside respectively move back oil groove.Thus, when in vane slot, lubricant oil is too much, too much lubricant oil can flow out from moving back oil groove, thus prevents compressor from producing more power consumptions, ensures that compressor performance is unlikely to worsen.
Particularly, one end away from described cylinder axis of described vane slot is provided with the spring eye for mounting spring, and the diameter of described spring eye is D; The described oil groove that moves back inwardly concaves from the outer wall of described cylinder and is formed and be communicated with described spring eye, described in move back the part of the described spring eye of connection of oil groove width be A, described A≤0.7*D.Thus, the too little spring that causes in the internal face cooperation place of spring and spring eye can be avoided easily to fly out.
Further, the periphery wall of described cylinder is provided with outward extending first lug boss, and the corresponding described vane slot of described first lug boss is arranged, and described in move back oil groove and be located in the outer wall of described first lug boss.Thus, move back oil groove easily to process.
In certain embodiments, the periphery wall of described cylinder is also provided with up/down perforation and is communicated with the cylinder oil-collecting passage of described vane slot.Thus, the lubricant oil above and below cylinder flows into vane slot by cylinder oil-collecting passage, ensures the lubrication effect of the movable part in vane slot, thus ensures that compressor has good performance and higher reliability.
Particularly, described stiffening rib is multiple, and multiple described stiffening rib distributes around described compression chamber uniform intervals.Thus, can further improve the rigidity of cylinder, ensure the sealing of liquid storage cylinder.
Advantageously, on the periphery wall of described cylinder, corresponding described stiffening rib stretches out to form the second lug boss.Thus, when the second lug boss be cylinder force is installed time, stiffening rib is supported on the correspondence second lug boss place of cylinder, can further improve the rigidity of cylinder, ensures the sealing of compressor.
According to the compression assembly of the rotary compressor of the utility model embodiment, comprising: according to the cylinder of the utility model above-described embodiment; Main bearing, described main bearing is located on the upper-end surface of described cylinder; Supplementary bearing, described supplementary bearing is located on the lower end surface of described cylinder.
Particularly, the periphery wall of described cylinder is also provided with up/down perforation and is communicated with the cylinder oil-collecting passage of described vane slot, described main bearing is provided with upwards through and is communicated with the upper oil-collecting passage of described cylinder oil-collecting passage, and described supplementary bearing is provided with through downwards and is communicated with the lower oil-collecting passage of described cylinder oil-collecting passage.Thus ensure lubrication and the sealing of slide plate.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the main TV structure schematic diagram of the cylinder according to the utility model embodiment;
Fig. 2 is the side-looking structural representation of the cylinder according to the utility model embodiment;
Fig. 3 is the main TV structure schematic diagram of the cylinder according to another embodiment of the utility model;
Fig. 4 is the perspective view of the cylinder according to the utility model embodiment;
Fig. 5 is the structural representation of the compression assembly according to the utility model embodiment.
Reference character:
10: compression assembly;
1: cylinder; P: compression chamber; 11: outer cylinder body; 12: inner cylinder body; 120: center hole; 13: connect cylinder body; 14: spring eye; 15: vane slot; Q: liquid storage cylinder; 16: stiffening rib; 17: move back oil groove; 18: the first lug bosses; 19: the second lug bosses; 191: groove;
2: main bearing; 3: supplementary bearing; 4: bent axle;
L: oil-collecting passage; L1: cylinder oil-collecting passage; L2: upper oil-collecting passage; L3: lower oil-collecting passage.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " highly ", " width ", " thickness ", " on ", D score, " vertically ", " level ", " top ", " end ", " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
In description of the present utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
Describe the cylinder 1 according to the utility model embodiment below with reference to Fig. 1-Fig. 5, this cylinder 1 is for the compression assembly of compressor.Wherein, compression assembly comprises bent axle 4, piston, slide plate and spring (scheming not shown), and bent axle 4 is connected to be rotated by driven by motor bent axle 4 with the motor of compressor.Piston is located in the compression chamber P of cylinder 1 rotationally, and piston jacket is on bent axle 4.In the vane slot 15 that slide plate is located at cylinder 1 movably and one end of slide plate is stretched in compression chamber P, the outer circumferential face of spring for driving slide plate to be only against piston.Wherein, be prior art about the structure of bent axle 4, piston, slide plate and spring and the motion state etc. when compressor operating, and known by those skilled in the art, therefore no longer described in detail here.
According to the cylinder 1 of the utility model embodiment, as shown in Figure 1, cylinder 1 comprises: outer cylinder body 11 and inner cylinder body 12, inner cylinder body 12 is located at the inner side of outer cylinder body 11, inner cylinder body 12 part is circumferentially connected cylinder body 13 with being provided with between outer cylinder body 11, inner cylinder body 12 has axially through center hole 120 to form compression chamber P, connects the vane slot 15 cylinder body 13 being formed with radial communication compression chamber P, outer cylinder body 11, limits liquid storage cylinder Q between inner cylinder body 12 and connection cylinder body 13.
That is, liquid storage cylinder Q through cylinder 1 in the vertical direction.Alternatively, the axial cross section of outer cylinder body 11 can be circle, and namely outer cylinder body 11 is formed as circular cylinder body, and the axial cross section of inner cylinder body 12 also can be circle, and namely inner cylinder body 12 is also formed as circular cylinder body.Liquid storage cylinder Q is formed as the C shape chamber arranged around inner cylinder body 12 circumference.
Particularly, cylinder 1 is provided with compression chamber suction port on the inner circle wall of compression chamber P, and liquid storage cylinder Q has liquid storage cylinder suction port, and liquid storage cylinder Q is communicated with compression chamber P by compression chamber suction port.Alternatively, compression chamber suction port is along the sidewall of the through inner cylinder body 12 of radial direction of cylinder 1, and liquid storage cylinder suction port is along the sidewall of the through outer cylinder body 11 of radial direction of cylinder 1.
Particularly, liquid storage cylinder suction port is connected with the circulatory system refrigerant pipeline of compressor outside by suction pipe.Compressor flows in liquid storage cylinder Q by the gas-liquid mixture that suction pipe sucks, and in the gas-liquid mixture of suction, gaseous coolant flows into compression chamber P to be compressed into high pressure refrigerant by compression chamber suction port.And gravitate impact, in the gas-liquid mixture of suction, liquid refrigerants and lubricant oil landing converge in liquid storage cylinder Q.Certainly, the heat of vaporization that liquid refrigerants absorbs cylinder 1 in liquid storage cylinder Q is after gaseous state, and still can flow into compression chamber P to compress by compression chamber suction port, the evaporation of liquid refrigerants simultaneously also can prevent cylinder 1 temperature too high.
Wherein, liquid storage cylinder Q has certain volume, a certain amount of liquid refrigerants can be held, thus effectively prevent hydraulic compression, can play the effect of air-breathing buffering, the noise that during reduction compressor air suction, air-breathing pulsation produces, and liquid storage cylinder Q also can be used as the liquid-storage container in traditional compressor simultaneously, namely the external liquid-storage container of traditional compressor can not be set according to the compressor of the utility model embodiment, and replace liquid-storage container by liquid storage cylinder Q and maintain the normal work of rotary compressor.
Preferably, compression chamber suction port is positioned at liquid storage cylinder suction port the both sides being connected cylinder body 13 in the circumferential.Thus, gas-liquid mixture circulation path in liquid storage cylinder Q can be extended, improve gas-liquid separation effect.
With reference to Fig. 1, be connected with stiffening rib 16 between outer cylinder body 11 and inner cylinder body 12, like this, effectively can increase the connection between the outer cylinder body 11 of cylinder 1 and inner cylinder body 12, improve the rigidity of whole cylinder 1, operationally cylinder 1 can not due to the larger distortion of the large generation of gas differential pressure to ensure compressor.
In addition, consider that the cavity between the outer cylinder body 11 of cylinder 1 and inner cylinder body 12 is liquid storage cylinder Q, and acting as of liquid storage cylinder Q stores the low-pressure gas or a small amount of liquid that compressor sucks, then low pressure gas is known from experience and is flow into cylinder 1 inner cylinder body 12 inside from liquid storage cylinder Q and compress.Thus, stiffening rib 16 is provided with in liquid storage cylinder Q, effectively can reduces the loss of pressure of inspiration(Pi), improve inspiratory flow paths simultaneously, thus ensure the performance of compressor.
In order to ensure the effect of stiffening rib 16, make can be combined as a whole better between the outer cylinder body 11 of cylinder 1 and inner cylinder body 12, avoid causing the problems such as moving element runs freely, sealing position inefficacy because of stressed excessive deformation simultaneously, need the maximum height controlling stiffening rib 16 when stiffening rib 16 is arranged, namely the axial overall dimensions of stiffening rib 16 is h.In the utility model embodiment, as shown in Figure 2, the height of cylinder 1 is set to H, and H, h meet: h >=0.15*H, by the axial height h of stiffening rib 16 is designed to the cylinder height H being more than or equal to 0.15 times, the intensity of stiffening rib 16 can be ensured well.
Certainly, because stiffening rib 16 is positioned at liquid storage cylinder Q, therefore the axial height h of stiffening rib 16 is less than the axial height H of cylinder 1, and namely H, h meet: 0.15*H≤h < H.
According to the cylinder 1 of the utility model embodiment, by arranging stiffening rib 16 in liquid storage cylinder Q, the integral rigidity of cylinder 1 can be improved, avoid cylinder 1 because of the large generation of gas differential pressure comparatively large deformation, thus ensure the sealing between cylinder 1 and connected components (as main bearing, supplementary bearing etc.), and then ensure that the sealing of compressor is good, good reliability.Meanwhile, the setting of stiffening rib 16, effectively can reduce pressure of inspiration(Pi) loss, improve inspiratory flow paths, thus improve compressor efficiency.And strengthen the rigidity of cylinder 1 due to stiffening rib 16, therefore the volume of liquid storage cylinder Q can strengthen when designing, and improves gas-liquid separation ability, this air cylinder structure advantages of simple, is beneficial to and reduces compressor machine volume.The setting of stiffening rib 16 height, can ensure the effect of stiffening rib 16, make can be combined as a whole better between the outer cylinder body 11 of cylinder 1 and inner cylinder body 12, avoids causing the problems such as moving element runs freely, sealing position inefficacy because of stressed excessive deformation simultaneously.
Advantageously, as shown in Figure 3, the thickness of outer cylinder body 11 is n, n >=2mm.That is, between the outer wall of liquid storage cylinder Q and the outer wall of cylinder 1, minimum range is 2mm.
Here it should be noted that, the whole enclosure interior of compressor is high back pressure structure, and the liquid storage cylinder Q between the outer cylinder body 11 of cylinder 1 and inner cylinder body 12 is low back pressure environment, therefore to ensure when structural design not allow the high back pressure Leakage Gas of enclosure interior enter into low back pressure environment, therefore the thickness of cylinder block 11 can not be excessively thin, and minimum thickness should be not less than 2mm.In addition, all there is sealing position outer cylinder body 11 side, to ensure the sealing of liquid storage cylinder Q.
In certain embodiments, as shown in Figure 4, cylinder 1 be provided be communicated with vane slot 15 and cylinder 1 outside respectively move back oil groove 17.
It should be noted that, well known to those of ordinary skill in the art, the side of the slide plate in vane slot 15 needs lubrication and sealing, if slide plate side lacks lubricant oil, then be difficult to ensure that slide plate contacts with the inner circle wall of vane slot 15 well in compressor operating process, easily cause slide plate to wear and tear.Slide plate side can be caused to be difficult to sealing, and high low pressure gas mutually leaks and is even communicated with, and greatly affects the performance and reliability of compressor simultaneously.Therefore operationally need lubricant oil and flow into vane slot 15, such as, lubricant oil in compression chamber P can flow directly in vane slot 15.
But when lubricant oil in vane slot 15 is too much, the work of slide plate also can be affected.Therefore arrange be communicated with vane slot 15 and cylinder 1 outside move back oil groove 17, can in vane slot 15 (such as, at one end place of vane slot 15 away from cylinder 1 center) when having more lubricant oil, when slide plate is toward when moving away from cylinder 1 central direction, slide plate can extrude lubricant oil, too much lubricant oil can flow out from moving back oil groove 17, thus prevents compressor from producing more power consumptions, ensures that compressor performance is unlikely to worsen.
Particularly, as shown in fig. 4 and fig. 2, one end away from cylinder 1 center of vane slot 15 is provided with the spring eye 14 for mounting spring, and the diameter of spring eye 14 is D.Move back oil groove 17 inwardly concave formation from the outer wall of cylinder 1 and be communicated with spring eye 14, the width moving back the part in the linking springs hole 14 of oil groove 17 is A, A≤0.7*D.Here the width moving back oil groove 17 refers to and moves back oil groove 17 in the size perpendicular to its bearing of trend, and as in the example of Fig. 2, move back oil groove 17 and extend along the circumference of cylinder 1, the width moving back oil groove 17 refers to and moves back oil groove 17 size in the axial direction.
Here, owing to moving back the linking springs hole 14 of oil groove 17, therefore when moving back the design of oil groove 17, needing to consider and coordinate requirement between spring and the internal face of spring eye 14.Specifically, if the width moving back oil groove 17 is excessive, then the internal face cooperation place of spring and spring eye 14 is too little, and spring easily flies out.Therefore, for ensureing that the coordinate force between spring and the internal face of spring eye 14 is unlikely to too small, the width A moving back the part in the linking springs hole 14 of oil groove 17 should be less than 0.7 times of spring eye 14 diameter D.
Further, as shown in Figure 4, the periphery wall of cylinder 1 is provided with the corresponding vane slot 15 of outward extending first lug boss 18, first lug boss 18 and arranges, and moves back oil groove 17 and be located in the outer wall of the first lug boss 18, thus, moves back oil groove 17 and easily processes.In the example of fig. 4, oil groove 17 through first lug boss 18 in the circumference of cylinder 1 is moved back.
Particularly, as shown in Figure 1, stiffening rib 16 is multiple, and multiple stiffening rib 16 distributes around compression chamber P uniform intervals.Thus, can further improve the rigidity of cylinder 1, ensure the sealing of liquid storage cylinder Q.
In some instances, as shown in Figure 3, the portion perimeter wall of cylinder 1 stretches out to form the second lug boss 19.Compressor is when assembling, and cylinder 1 is fixed on compressor housing by the second lug boss 19, and the groove 191 formed between adjacent two the second lug bosses 19 can facilitate the top of cylinder 1 and the circulation of below.
Advantageously, as shown in Figure 1, on the periphery wall of cylinder 1, corresponding stiffening rib 16 stretches out to form the second lug boss 19.Like this, what be cylinder 1 when the second lug boss 19 is installed with force, and when namely cylinder 1 is fixed by the second lug boss 19, stiffening rib 16 is supported on correspondence second lug boss 19 place of cylinder 1, can further improve the rigidity of cylinder 1, ensures the sealing of compressor.
In certain embodiments, as shown in Figure 5, the periphery wall of cylinder 1 is also provided with up/down perforation and is communicated with the cylinder oil-collecting passage L1 of vane slot 15.Thus, the lubricant oil above and below cylinder 1 flows into vane slot 15 by cylinder oil-collecting passage L1, ensures the lubrication effect of the movable part in vane slot 15, thus ensures that compressor has good performance and higher reliability.
Particularly, as shown in Figure 5, oil groove 17 is moved back in cylinder oil-collecting passage L1 connection.
Below with reference to Fig. 5 and Fig. 1, the compression assembly 10 according to the rotary compressor of the utility model embodiment is described.
According to the compression assembly 10 of the rotary compressor of the utility model embodiment, comprising: according to the cylinder 1 of the utility model above-described embodiment, main bearing 2 and supplementary bearing 3, main bearing 2 is located on the upper-end surface of cylinder 1, and supplementary bearing 3 is located on the lower end surface of cylinder 1.Compression assembly 10 also comprises bent axle 4, and bent axle 4 coordinates with the piston in cylinder 1, and the two ends of bent axle 4 are stretched out cylinder 1 respectively and coordinated with main bearing 2 and supplementary bearing 3.
Wherein, as shown in Figure 1, cylinder 1 comprises: outer cylinder body 11 and inner cylinder body 12, inner cylinder body 12 is located at the inner side of outer cylinder body 11, inner cylinder body 12 part is circumferentially connected cylinder body 13 with being provided with between outer cylinder body 11, inner cylinder body 12 has axially through center hole 120 to form compression chamber P, connects the vane slot 15 cylinder body 13 being formed with radial communication compression chamber P, outer cylinder body 11, limits liquid storage cylinder Q between inner cylinder body 12 and connection cylinder body 13.Main bearing 2 and supplementary bearing 3 are located at the two ends of cylinder 1 respectively with closed compression chamber P and liquid storage cylinder Q, and namely compression chamber P is formed by cylinder 1, main bearing 2 and supplementary bearing 3 envelope, and liquid storage cylinder Q is also formed by cylinder 1, main bearing 2 and supplementary bearing 3 envelope.
According to the compression assembly 10 of the rotary compressor of the utility model embodiment, stiffening rib 16 is connected with between the interior outer cylinder body of the cylinder 1 of this compression assembly 10, the integral rigidity of cylinder 1 can be improved, cylinder 1 is avoided to be out of shape, thus ensure the sealing between cylinder 1 and main bearing 2, supplementary bearing 3, and then ensure that the sealing of compressor is good, good reliability.Meanwhile, the setting of stiffening rib 16, effectively can reduce pressure of inspiration(Pi) loss, improve inspiratory flow paths, thus improve compressor efficiency.And strengthen the rigidity of cylinder 1 due to stiffening rib 16, therefore the volume of liquid storage cylinder Q can strengthen when designing, and improve gas-liquid separation ability, this compression assembly 10 has simple and reasonable, that machine volume is little feature.
Particularly, as shown in Figure 5, the periphery wall of cylinder 1 is provided with up/down perforation and is communicated with the cylinder oil-collecting passage L1 of vane slot 15, main bearing 2 is provided with upper oil-collecting passage L2 that is upwards through and connection cylinder oil-collecting passage L1, and supplementary bearing 3 is provided with lower oil-collecting passage L3 that is through and connection cylinder oil-collecting passage L1 downwards.Cylinder oil-collecting passage L1, upper oil-collecting passage L2, lower oil-collecting passage L3 form up/down perforation and are communicated with the oil-collecting passage L of vane slot 15.
It should be noted that, compressor operationally, in the high-pressure gaseous refrigerant that compression assembly 10 is discharged, has lubricant oil mixing wherein.Fluid-mixing is easily separated on the top of compressor, and the surface of such as fluid-mixing by shock motor, the centrifugal action by rotor or the mutual collision etc. passed through between air-flow, can separate the oil in pressurized gas, form oil droplet.Under normal circumstances, the oil droplet of formation can be collected and be dropped on the surface of main bearing 2.Owing to being provided with oil-collecting passage L in the utility model embodiment, therefore oil droplet is easy to flow into this oil-collecting passage L, then arrives at vane motion position by this oil-collecting passage L, thus ensures lubrication and the sealing of slide plate.
In addition, oil-collecting passage L directly can be communicated with the bottom oil sump below compressor downwards.When the inner pasta of compressor is higher, oil sump pasta just arrives at slide plate periphery by oil-collecting passage L, ensures the lubrication of slide plate.
Preferably, oil groove 17 is moved back in cylinder oil-collecting passage L1 connection, thus oil groove 17 is moved back in oil-collecting passage L connection.Particularly, the upper end of oil-collecting passage L is flaring structure.
According to the compression assembly 10 of the rotary compressor of the utility model embodiment, sealing is good, good reliability, and efficiency is high, and simple and reasonable, machine volume is little.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.
Claims (10)
1. a cylinder, described cylinder is used for the compression assembly of compressor, and it is characterized in that, described cylinder comprises:
Outer cylinder body;
Inner cylinder body, described inner cylinder body is located at the inner side of described outer cylinder body, a described inner cylinder body part is circumferentially connected cylinder body with being provided with between described outer cylinder body, described inner cylinder body has axially through center hole to form described compression chamber, described connection cylinder body is formed with the vane slot of compression chamber described in radial communication, described outer cylinder body, liquid storage cylinder is limited between described inner cylinder body and described connection cylinder body, stiffening rib is connected with between described outer cylinder body and described inner cylinder body, wherein, the height of described cylinder is H, the axial overall dimensions of described stiffening rib is h, described H, h meets: 0.15*H≤h < H.
2. cylinder according to claim 1, is characterized in that, the thickness of described outer cylinder body is n, described n >=2mm.
3. cylinder according to claim 1, is characterized in that, described cylinder be provided be communicated with described vane slot and described cylinder outside respectively move back oil groove.
4. cylinder according to claim 3, is characterized in that, one end away from described cylinder axis of described vane slot is provided with the spring eye for mounting spring, and the diameter of described spring eye is D;
The described oil groove that moves back inwardly concaves from the outer wall of described cylinder and is formed and be communicated with described spring eye, described in move back the part of the described spring eye of connection of oil groove width be A, described A≤0.7*D.
5. cylinder according to claim 3, is characterized in that, the periphery wall of described cylinder is provided with outward extending first lug boss, and the corresponding described vane slot of described first lug boss is arranged, and described in move back oil groove and be located in the outer wall of described first lug boss.
6. the cylinder according to any one of claim 1-5, is characterized in that, the periphery wall of described cylinder is also provided with up/down perforation and is communicated with the cylinder oil-collecting passage of described vane slot.
7. cylinder according to claim 1, is characterized in that, described stiffening rib is multiple, and multiple described stiffening rib distributes around described compression chamber uniform intervals.
8. the cylinder according to claim 1 or 7, is characterized in that, on the periphery wall of described cylinder, corresponding described stiffening rib stretches out to form the second lug boss.
9. a compression assembly for rotary compressor, is characterized in that, comprising:
Cylinder according to any one of claim 1-8;
Main bearing, described main bearing is located on the upper-end surface of described cylinder;
Supplementary bearing, described supplementary bearing is located on the lower end surface of described cylinder.
10. the compression assembly of rotary compressor according to claim 9, it is characterized in that, described cylinder is cylinder according to claim 6, described main bearing is provided with upwards through and is communicated with the upper oil-collecting passage of described cylinder oil-collecting passage, and described supplementary bearing is provided with through downwards and is communicated with the lower oil-collecting passage of described cylinder oil-collecting passage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520532523.0U CN204900246U (en) | 2015-07-21 | 2015-07-21 | Cylinder and have its rotary compressor's compressing assembly |
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| CN201520532523.0U CN204900246U (en) | 2015-07-21 | 2015-07-21 | Cylinder and have its rotary compressor's compressing assembly |
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| CN204900246U true CN204900246U (en) | 2015-12-23 |
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| CN201520532523.0U Withdrawn - After Issue CN204900246U (en) | 2015-07-21 | 2015-07-21 | Cylinder and have its rotary compressor's compressing assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989647A (en) * | 2015-07-21 | 2015-10-21 | 广东美芝制冷设备有限公司 | Air cylinder and compression component of rotating type compressor with air cylinder |
| WO2023173638A1 (en) * | 2022-03-16 | 2023-09-21 | 广州市德善数控科技有限公司 | Cylinder, compressor, and cooling/heating system |
-
2015
- 2015-07-21 CN CN201520532523.0U patent/CN204900246U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989647A (en) * | 2015-07-21 | 2015-10-21 | 广东美芝制冷设备有限公司 | Air cylinder and compression component of rotating type compressor with air cylinder |
| WO2023173638A1 (en) * | 2022-03-16 | 2023-09-21 | 广州市德善数控科技有限公司 | Cylinder, compressor, and cooling/heating system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151223 Effective date of abandoning: 20171117 |