CN204783674U - Bearing assembly of compressor and have its compressor - Google Patents
Bearing assembly of compressor and have its compressor Download PDFInfo
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- CN204783674U CN204783674U CN201520429865.XU CN201520429865U CN204783674U CN 204783674 U CN204783674 U CN 204783674U CN 201520429865 U CN201520429865 U CN 201520429865U CN 204783674 U CN204783674 U CN 204783674U
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- recess
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- cylinder
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Abstract
The utility model discloses a bearing assembly of compressor and have its compressor, the compressor includes the cylinder, be equipped with gleitbretter groove and exhaust incision on the cylinder, the bearing assembly of compressor includes: hub portion, hub portion is cylindrical, be equipped with in the hub portion and run through along axial direction the through -hole of hub portion, be equipped with the concave part on the through -hole, the concave part week ascending size be lighter than the girth of through -hole, flange portion, flange portion cover is established it is just neighbouring on the hub portion outer peripheral face the one end setting of hub portion. According to the utility model discloses a bearing assembly of compressor under the circumstances of guaranteeing the oil film bearing capacity, can reduce the load of compressor, improves the efficiency of compressor.
Description
Technical field
The utility model relates to compressor field, especially relates to a kind of bearing unit of compressor and has the compressor of this bearing unit.
Background technique
In correlation technique, the wheel hub of the bearing of rotary compressor is cylindrical, the bent axle of rotary compressor is set in the inside of this wheel hub, the whole outer peripheral surface of bent axle contacts with the whole inner peripheral surface of bearing wheel hub, bent axle when rotating due to area of contact the comparatively large thus frictional force increased therebetween, cause the working load of compressor to raise.Although can reduce frictional loss by increasing matching gap between the two, the matching gap arranged is larger, and the bent axle amount of deflection of rotary compressor is larger, compressor performance and reliability lower.
Model utility content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model proposes a kind of bearing unit of compressor, this bearing unit when ensureing oil film bearing capacity, can reduce the load of compressor, improves the efficiency of compressor.
The utility model proposes a kind of compressor further.
According to the bearing unit of compressor of the present utility model, described compressor comprises cylinder, described cylinder is provided with vane slot and exhaust otch, the bearing unit of described compressor comprises: hub portion, described hub portion is cylindrical, be provided with the through hole in axial direction running through described hub portion in described hub portion, described through hole is provided with recess, and described recess size is in the circumferential less than the girth of described through hole; Flange part, described flange part is set on described hub portion outer circumferential face and one end of contiguous described hub portion and arranges.
According to the bearing unit of compressor of the present utility model, when not destroying oil film bearing capacity, the inner peripheral surface of hub portion and the area of contact of bent axle outer circumferential face can be effectively reduced, thus the friction that can reduce therebetween, and then load when can reduce compressor operating, improve the efficiency of compressor.In addition due to the setting of recess, making in compressor operating process, there is certain change in the axle center locus of bent axle, can piston in dynamic corrections cylinder and the gap between cylinder, promotes the cold of compressor.
In addition, also following additional technical feature can be had according to the bearing unit of compressor of the present utility model:
In examples more of the present utility model, described recess is h along the height of described axial direction, described hub portion is H along the height of described axial direction, and the height h of wherein said recess and the height H of described hub portion meet relation: 0.1≤h/H<1.
In examples more of the present utility model, the height h of described recess and the height H of described hub portion meet relation: h=1/3H.
In examples more of the present utility model, described recess is projected as circular arc in the plane of vertical described axial direction, and the central angle corresponding to described recess is β, and described central angle β meets relation: 0 ° of < β≤180 °.
In examples more of the present utility model, the initial position of described recess is positioned in the line at the center of described vane slot and described cylinder for benchmark and position corresponding after the direction rotation angle α of described exhaust otch, and wherein said angle [alpha] meets relation: 0 °≤α <90 °.
In examples more of the present utility model, described recess is arc surface or plane.
In examples more of the present utility model, described recess be arc surface and with described hub portion concentric or eccentric setting.
In examples more of the present utility model, the radius of curvature of described recess is r, and the radius of described through hole is R, and the radius R of described radius of curvature r and described through hole meets relation: 0.1≤r/R<2.
In examples more of the present utility model, described recess comprises the sub-recess of the spaced apart distribution of multiple circumferences along described through hole.
According to compressor of the present utility model, comprising: cylinder, described cylinder is provided with vane slot and exhaust otch; The bearing unit of described compressor, described bearing unit is located at upper end and/or the lower end of described cylinder.The working load with the compressor of above-mentioned bearing unit is little, and efficiency is high.In addition due to the setting of recess, making in compressor operating process, there is certain change in the axle center locus of bent axle, can piston in dynamic corrections cylinder and the gap between cylinder, promotes the cold of compressor.
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 sectional view of the compressor according to the utility model embodiment;
Fig. 2 is a sectional view of the bearing unit of compressor according to the utility model embodiment;
Fig. 3 is another sectional view of the bearing unit of compressor according to the utility model embodiment;
Fig. 4 is the structural representation of the cylinder of compressor according to the utility model embodiment;
Fig. 5 is bindiny mechanism's schematic diagram of cylinder according to the compressor of the utility model embodiment and bearing unit;
Fig. 6 is the partial sectional view of the bearing unit of compressor according to the utility model embodiment;
Fig. 7 is the partial sectional view of the bearing unit of compressor according to another embodiment of the utility model.
Reference character:
Compressor 1000;
Bearing unit 100; Hub portion 10; Through hole 20; Flange part 30; Recess 40;
Cylinder 200; Vane slot 210; Exhaust otch 220; Bent axle 300.
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.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " 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, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; 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, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
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.
Below with reference to Fig. 1-Fig. 7, the bearing unit 100 according to the compressor 1000 of the utility model embodiment is described.
Hub portion 10 and flange part 30 is comprised according to the bearing unit 100 of the compressor 1000 of the utility model embodiment.Shown in composition graphs 2, Fig. 6 and Fig. 7, hub portion 10 is cylindrical, be provided with in axial direction (above-below direction namely shown in Fig. 2) in hub portion 10 and run through the through hole 20 of hub portion 10, through hole 20 is used for the bent axle 300 of support compressor 1000, and through hole 20 is provided with recess 40.By arranging recess 40, the inner peripheral surface of hub portion 10 and the area of contact of bent axle 300 outer circumferential face can be effectively reduced, thus friction therebetween can be reduced, and then load when compressor 1000 works can be reduced, improve the efficiency of compressor 1000.In addition due to the setting of recess 40, making in compressor 1000 running, there is certain change in the axle center locus of bent axle 300, can piston in dynamic corrections cylinder 200 and the gap between cylinder 200, promotes the cold of compressor 1000.
Recess 40 size is in the circumferential less than the girth of through hole 20.That is, recess 40 is not arranged around the inner peripheral surface of whole hub portion 10, and namely the central angle of recess 40 correspondence is less than 360 °, is arranged on the recess 40 in hub portion 10 in other words and other than ring type.Being less than the girth of through hole 20 by arranging recess 40 size in the circumferential, when not destroying oil film bearing capacity, the efficiency of compressor 1000 can being improved.
Alternatively, as shown in Figure 6 and Figure 7, recess 40 can be arc surface.But the utility model is not limited to this, in the unshowned embodiment of the utility model, recess 40 can also be plane.Particularly, recess 40 can be arc surface, and recess 40 with hub portion 10 concentric or eccentric setting.As shown in Figure 6, recess 40 and hub portion 10 eccentric setting, as shown in Figure 7, recess 40 is arranged with hub portion 10 is concentric.When recess 40 and hub portion 10 eccentric setting, the manufacture difficulty of recess 40 can be reduced, thus bearing unit 100 manufacturing process can be made simple, easy to process.
Flange part 30 is set on hub portion 10 outer circumferential face, and the one end in flange part 30 adjacent hub portion 10 is arranged.As shown in Figure 2, the lower end in flange part 30 adjacent hub portion 10 is arranged, and bearing unit 100 can be fixedly connected on the cylinder 200 of compressor 1000 by flange part 30.Alternatively, as shown in Figure 2, the lower surface of flange part 30 can with the lower surface of hub portion 10 to concordant, but the utility model is not limited to this, in the unshowned embodiment of the utility model, the lower surface of flange part 30 can exceed or upwards exceed the lower surface of hub portion 10 downwards.
According to the bearing unit 100 of the compressor 1000 of the utility model embodiment, when not destroying oil film bearing capacity, the inner peripheral surface of hub portion 10 and the area of contact of bent axle 300 outer circumferential face can be effectively reduced, thus the friction that can reduce therebetween, and then the load that can reduce when compressor 1000 works, improve the efficiency of compressor 1000.In addition due to the setting of recess 40, making in compressor 1000 running, there is certain change in the axle center locus of bent axle 300, can piston in dynamic corrections cylinder 200 and the gap between cylinder 200, promotes the cold of compressor 1000.
In examples more of the present utility model, as shown in Figure 3, recess 40 is h along the height of the axial direction of hub portion 10, and hub portion 10 height is in axial direction H, and the height h of its center dant 40 and the height H of hub portion 10 can meet relation: 0.1≤h/H<1.That is, the height h of recess 40 is less than the height H of hub portion 10.Preferably, the height h of recess 40 and the height H of hub portion 10 can meet relation: h=1/3H.Recess 40 can be arranged on the middle part of hub portion 10, thus can when ensureing oil film seal, and the larger area of contact limiting ground reduction wheel hub and bent axle 300, reduces friction therebetween.
Alternatively, as shown in Figure 6 and Figure 7, recess 40 is projected as circular arc in the plane in vertical axial direction, and the central angle corresponding to recess 40 is β, and central angle β can meet relation: 0 ° of < β≤180 °.That is, the overall dimensions in recess 40 circumference can be the half of the girth of through hole 20, thus effectively can ensure the effect of oil film seal.
Shown in composition graphs 1 and Fig. 4, compressor 1000 comprises cylinder 200, and cylinder 200 is provided with vane slot 210 and exhaust otch 220, and bearing unit 100 is located at upper end and/or the lower end of cylinder 200.That is, bearing unit 100 can be arranged on the upper end of cylinder 200; Or bearing unit 100 can be arranged on the lower end of cylinder 200; Or bearing unit 100 can be arranged on the top and bottom of cylinder 200 simultaneously.
Further, shown in composition graphs 4-Fig. 7, the initial position of recess 40 can be positioned in the line (the line 0A namely shown in Fig. 4) at the center of vane slot 210 and cylinder 200 for benchmark and position corresponding after the direction rotation angle α of exhaust otch 220, and wherein angle [alpha] can meet relation: 0 °≤α <90 °.It should be noted that, the bearing unit 100 shown in Fig. 5 is the lower bearing be arranged on below cylinder 200 in compressor 1000.Meet relation: the recess 40 that 0 °≤α is <90 ° can improve the abrasion problems between hub portion 10 and bent axle 300 further, reduce the load of compressor 1000, improve the efficiency of compressor 1000.
In concrete examples more of the present utility model, as shown in Figure 6 and Figure 7, the radius of curvature of recess 40 is r, and the radius of through hole 20 is that the radius R of R, radius of curvature r and through hole 20 can meet relation: 0.1≤r/R<2.Meet relation: the recess 40 of 0.1≤r/R<2 and hub portion 10 so that the processing of bearing unit 100, can simplify the manufacturing process of bearing unit 100.
Alternatively, recess 40 can comprise the sub-recess of the spaced apart distribution of multiple circumferences along through hole 20, thus can ensure the reliability of oil film seal further.
According to the compressor 1000 of the utility model embodiment, comprise the bearing unit 100 of the compressor 1000 of cylinder 200 and above-described embodiment.Cylinder 200 is provided with vane slot 210 and exhaust otch 220, and bearing unit 100 is located at upper end and/or the lower end of cylinder 200.The working load with the compressor 1000 of the bearing unit 100 of above-described embodiment is little, and efficiency is high.In addition due to the setting of recess 40, making in compressor 1000 running, there is certain change in the axle center locus of bent axle 300, can piston in dynamic corrections cylinder 200 and the gap between cylinder 200, promotes the cold of compressor 1000.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " 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 bearing unit for compressor, described compressor comprises cylinder, and described cylinder is provided with vane slot and exhaust otch, and it is characterized in that, the bearing unit of described compressor comprises:
Hub portion, described hub portion is cylindrical, is provided with the through hole in axial direction running through described hub portion in described hub portion, and described through hole is provided with recess, and described recess size is in the circumferential less than the girth of described through hole;
Flange part, described flange part is set on described hub portion outer circumferential face and one end of contiguous described hub portion and arranges.
2. the bearing unit of compressor according to claim 1, it is characterized in that, described recess is h along the height of described axial direction, described hub portion is H along the height of described axial direction, and the height h of wherein said recess and the height H of described hub portion meet relation: 0.1≤h/H<1.
3. the bearing unit of compressor according to claim 2, is characterized in that, the height h of described recess and the height H of described hub portion meet relation: h=1/3H.
4. the bearing unit of compressor according to claim 1, it is characterized in that, described recess is projected as circular arc in the plane of vertical described axial direction, and the central angle corresponding to described recess is β, and described central angle β meets relation: 0 ° of < β≤180 °.
5. the bearing unit of compressor according to claim 4, it is characterized in that, the initial position of described recess is positioned in the line at the center of described vane slot and described cylinder for benchmark and position corresponding after the direction rotation angle α of described exhaust otch, and wherein said angle [alpha] meets relation: 0 °≤α <90 °.
6. the bearing unit of compressor according to claim 1, is characterized in that, described recess is arc surface or plane.
7. the bearing unit of compressor according to claim 6, is characterized in that, described recess be arc surface and with described hub portion concentric or eccentric setting.
8. the bearing unit of compressor according to claim 1, is characterized in that, the radius of curvature of described recess is r, and the radius of described through hole is R, and the radius R of described radius of curvature r and described through hole meets relation: 0.1≤r/R<2.
9. the bearing unit of compressor according to claim 1, is characterized in that, described recess comprises the sub-recess of the spaced apart distribution of multiple circumferences along described through hole.
10. a compressor, is characterized in that, comprising:
Cylinder, described cylinder is provided with vane slot and exhaust otch;
The bearing unit of the compressor according to any one of claim 1-9, described bearing unit is located at upper end and/or the lower end of described cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520429865.XU CN204783674U (en) | 2015-06-18 | 2015-06-18 | Bearing assembly of compressor and have its compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520429865.XU CN204783674U (en) | 2015-06-18 | 2015-06-18 | Bearing assembly of compressor and have its compressor |
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| Publication Number | Publication Date |
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| CN204783674U true CN204783674U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520429865.XU Active CN204783674U (en) | 2015-06-18 | 2015-06-18 | Bearing assembly of compressor and have its compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912806A (en) * | 2015-06-18 | 2015-09-16 | 广东美芝制冷设备有限公司 | Bearing module of compressor and compressor with same |
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2015
- 2015-06-18 CN CN201520429865.XU patent/CN204783674U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912806A (en) * | 2015-06-18 | 2015-09-16 | 广东美芝制冷设备有限公司 | Bearing module of compressor and compressor with same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |