CN112555153B - Balancing piece, rotor part and compressor - Google Patents
Balancing piece, rotor part and compressor Download PDFInfo
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- CN112555153B CN112555153B CN202011256872.6A CN202011256872A CN112555153B CN 112555153 B CN112555153 B CN 112555153B CN 202011256872 A CN202011256872 A CN 202011256872A CN 112555153 B CN112555153 B CN 112555153B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0021—Systems for the equilibration of forces acting on the pump
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- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a balance block, a rotor component and a compressor, wherein the balance block is suitable for rotating around a rotation center line and comprises a body and a fixing part, the body is provided with a first side face and a second side face which are oppositely arranged in the width direction of the body, the first side face is close to the rotation center line compared with the second side face, the second side face is an arc-shaped face protruding in the direction far away from the rotation center line, the fixing part is arranged at the end part of the body in the length direction of the body, the fixing part is provided with a third side face and a fourth side face in the width direction, the third side face is close to the rotation center line compared with the fourth side face, the fourth side face is an arc-shaped face protruding in the direction far away from the rotation center line, on a projection plane which is orthogonal to the rotation center line, the distance between the rotation center line and the projection of the second side face is L1, the distance between the rotation center line and the projection of the fourth side face is L2, and L2 is larger than L1. The balance block of the invention bears less wind resistance when working, which is beneficial to improving the reliability of the compressor when in operation.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a balance block, a rotor component with the balance block and a compressor with the rotor component.
Background
In the related art, a balance weight is generally provided at an upper end or a lower end of a rotor of a rotary compressor. The balance block can also rotate along with the compressor when the compressor works, and the balance block rotates to have certain wind resistance, so that strong cyclone is formed in the lower upper space or the lower space of the motor, the oil pool of the compressor is unstable, the running oil level of the compressor is difficult to guarantee, and the running reliability of the compressor is reduced.
Disclosure of Invention
The present invention is directed to solving, at least in part, one of the technical problems in the related art.
Therefore, the embodiment of one aspect of the invention provides a balance block, which is less in wind resistance when in work and beneficial to improving the reliability of the compressor in operation.
An embodiment of another aspect of the invention provides a rotor component.
An embodiment of yet another aspect of the present invention provides a compressor.
A weight according to an embodiment of the first aspect of the invention, the weight being adapted to rotate about a centre line of rotation, the weight comprising: a body having a first side and a second side that are arranged opposite to each other in a width direction thereof, the first side being adjacent to the rotation center line than the second side, the second side being an arc-shaped face that is convex toward a direction away from the rotation center line; the fixing part is arranged at the end part of the body in the length direction of the body, the fixing part is provided with a third side surface and a fourth side surface in the width direction, the third side surface is adjacent to the rotating central line compared with the fourth side surface, the third side surface is connected with the first side surface, the fourth side surface is connected with the second side surface, the fourth side surface is an arc-shaped surface protruding towards the direction far away from the rotating central line, on a projection surface orthogonal to the rotating central line, the distance between the projection of the rotating central line and the projection of the second side surface is L1, the distance between the projection of the rotating central line and the projection of the fourth side surface is L2, and L2 is more than L1.
According to the embodiment of the invention, when the balance block rotates around the rotation center line, the fixed part is subjected to the resistance of the airflow, and the distance L2 between the projection of the rotation center line and the projection of the fourth side surface is greater than the distance L1 between the projection of the rotation center line and the projection of the second side surface, so that the negative pressure area between the airflow and the balance block can be reduced, and the resistance of the balance block is reduced, therefore, the balance block in the embodiment of the invention is subjected to smaller wind resistance when working, and the reliability of the compressor in operation is favorably improved.
In some embodiments, the first side is an arcuate face that is convex toward a direction away from the centerline of rotation.
In some embodiments, the first side surface and the second side surface are both arc surfaces, and the first side surface and the second side surface are arranged in parallel.
In some embodiments, the third side is an arcuate surface that is convex toward a direction adjacent the centerline of rotation.
In some embodiments, the third side surface and the fourth side surface are both arc surfaces, and on a projection plane orthogonal to the rotation center line, a projection of the fourth side surface and a projection of the third side surface are on the same circle.
In some embodiments, the weight further includes a windward portion disposed at an end of the fixing portion away from the body, the windward portion includes a fifth side surface and a sixth side surface in a width direction thereof, the fifth side surface is adjacent to the rotation center line compared to the sixth side surface, and a width of the windward portion is smaller than a width of the fixing portion.
In some embodiments, the distance between the fifth side and the sixth side gradually decreases in a direction away from the body, and an end of the fifth side away from the body is in arc transition connection with an end of the sixth side away from the body.
In some embodiments, the fifth side surface is an arc surface protruding away from the rotation center line, and on a projection plane orthogonal to the rotation center line, a projection of a connection surface of the fifth side surface and the sixth side surface has a radius of curvature R1, and a projection of the fourth side surface has a radius of curvature R2, where R1 < R2.
In some embodiments, the fixing portion is provided with a mounting hole penetrating through the fixing portion, and a center line of the mounting hole is substantially parallel to the rotation center line.
In some embodiments, the number of the fixing portions is two, one of the fixing portions is disposed at one end of the body along the length direction of the body, and the other fixing portion is disposed at the other end of the body along the length direction of the body.
A rotor component according to an embodiment of the second aspect of the invention comprises: a rotor; the end plate is arranged at the end part of the rotor; the balancing piece is arranged on one side, far away from the rotor, of the end plate and is the balancing piece in any one of the above embodiments, and the rotation center line of the balancing piece is collinear with the axis of the rotor.
According to the rotor component disclosed by the embodiment of the invention, the disturbance to the oil sump of the compressor can be reduced, and the lubrication reliability of the rotor component is improved.
A compressor according to an embodiment of the third aspect of the present invention comprises rotor components as described in the above embodiments.
The compressor provided by the embodiment of the invention has good lubricity and is reliable in operation.
Drawings
FIG. 1 is a top view of a weight according to an embodiment of the present invention.
FIG. 2 is a schematic view of a balance weight according to an embodiment of the invention.
FIG. 3 is a top view of a weight and an end plate according to an embodiment of the invention.
FIG. 4 is a schematic view of a weight and an end plate according to an embodiment of the invention.
Figure 5 is an exploded view of a rotor component of an embodiment of the present invention.
Figure 6 is a schematic diagram of rotor components of an embodiment of the present invention.
Reference numerals:
100. a counterbalance; 200. an end plate; 300. a rotor;
1. a body; 11. a first side; 12. a second side surface;
2. a fixed part; 21. a third side; 22. a fourth side; 23. mounting holes;
3. a windward portion; 31. a fifth side surface; 32. a sixth side;
4. a center line of rotation.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A balance block, a rotor member, and a compressor according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1 to 6, the weight 100 according to the embodiment of the present invention is adapted to rotate about the rotation center line 4, and the weight 100 includes a body 1 and a fixing portion 2. It will be appreciated that the counterweight 100 is mounted at the end of the rotor 300, the axis of the rotor 300 coinciding with the centre of rotation line 4.
As shown in fig. 1 and 2, the body 1 has a first side surface 11 and a second side surface 12 which are arranged oppositely in a width direction thereof (front-rear direction in fig. 1), the first side surface 11 is closer to the rotation center line 4 than the second side surface 12, and the second side surface 12 is an arc-shaped surface which is convex toward a direction away from the rotation center line 4.
As shown in fig. 1 and 2, the fixing portion 2 is provided at an end of the body 1 in a length direction (e.g., a left-right direction in fig. 1) of the body 1, the fixing portion 2 has a third side 21 and a fourth side 22 in a width direction (e.g., a front-back direction in fig. 1) thereof, the third side 21 is closer to the rotation center line 4 than the fourth side 22, the third side 21 is connected to the first side 11, the fourth side 22 is connected to the second side 12, and the fourth side 22 is an arc-shaped surface that is convex toward a direction away from the rotation center line 4.
On a projection plane orthogonal to the rotation center line 4, a distance between the projection of the rotation center line 4 and the projection of the second side surface 12 is L1, a distance between the projection of the rotation center line 4 and the projection of the fourth side surface is L2, and L2 > L1.
When the balance weight rotates around the rotation center line 4 according to the embodiment of the present invention, the fixed portion 2 may receive resistance of the air flow, and since the distance L2 between the projection of the rotation center line 4 and the projection of the fourth side surface 22 is greater than the distance L1 between the projection of the rotation center line 4 and the projection of the second side surface 12, the negative pressure region between the air flow and the balance weight 100 may be reduced, so that the resistance received by the balance weight 100 is reduced, and thus the wind resistance received by the balance weight in the operation of the embodiment of the present invention is smaller, which is beneficial to improving the reliability of the compressor in operation.
Further, as shown in fig. 1 and 2, the first side surface 11 is an arc-shaped surface that is convex toward a direction away from the rotation center line 4. The first side surface 11 and the second side surface 12 are both arc surfaces, and the first side surface 11 and the second side surface 12 are arranged in parallel. Preferably, the projections of the first side surface 11 and the second side surface 12 on the projection plane orthogonal to the rotation center line 4 are parallel to each other, and the center of the outer contour of the projections of the first side surface 11 and the second side surface 12 on the projection plane orthogonal to the rotation center line 4 coincides with the projection point of the rotation center line 4 on the projection plane orthogonal to the rotation center line 4. Therefore, the balance block of the embodiment of the invention can further reduce wind resistance when rotating, and improve the reliability of the compressor in operation.
In some embodiments, as shown in fig. 1 and 2, the third side 21 is an arc-shaped face that is convex toward a direction adjacent to the rotation centerline 4. The third side surface 21 and the fourth side surface 22 are both arc surfaces, and on a projection plane orthogonal to the rotation center line 4, a projection of the fourth side surface 22 and a projection of the third side surface 21 are on the same circle. Thereby facilitating the processing and forming of the balance weight 100 and reducing the wind resistance when the balance weight 100 rotates.
In some embodiments, as shown in fig. 1 and 2, the counterweight 100 further includes a windward portion 3, the windward portion 3 is disposed at an end of the fixing portion 2 away from the body 1, and the windward portion 3 extends along a length direction of the body 1. The windward portion 3 includes a fifth side surface 31 and a sixth side surface 32 in the width direction thereof, the fifth side surface 31 being adjacent to the rotation center line 4 than the sixth side surface 32, and the width of the windward portion 3 being smaller than the width of the fixing portion 2.
It is understood that, as shown in fig. 1 and 2, the width of the windward portion 3 is the difference between the distance between the projection of the sixth side face 32 and the projection of the rotation center line 4 and the distance between the projection of the fifth side face 31 and the projection of the rotation center line 4 on the projection plane orthogonal to the rotation center line 4. The width of the fixing portion 2 is a difference between a distance between a projection of the fourth side surface 22 and a projection of the rotation center line 4 and a distance between a projection of the third side surface 21 and the projection of the rotation center line 4 on a projection plane orthogonal to the rotation center line 4.
Further, as shown in fig. 1 and fig. 2, the distance between the fifth side surface 31 and the sixth side surface 32 gradually decreases in the direction away from the body 1, and one end of the fifth side surface 31 away from the body 1 is in arc transition connection with one end of the sixth side surface 32 away from the body 1. Therefore, the balance weight of the embodiment of the invention can better divide the airflow through the windward part 3, so as to reduce the resistance of the airflow to the balance weight 100.
Specifically, as shown in fig. 1 and 2, the fifth side surface 31 is an arc-shaped surface protruding in a direction away from the rotation center line 4, the sixth side surface 32 is a flat surface, and a connection surface between the fifth side surface 31 and the sixth side surface 32 is an arc surface. On a projection plane orthogonal to the rotation center line 4, a projection of a connection plane of the fifth side surface 31 and the sixth side surface 32 has a radius of curvature R1, and a projection of the fourth side surface 22 has a radius of curvature R2, where R1 < R2. It will be appreciated that the outer peripheral surface of the end of the windward portion 3 is "pointed" relative to the outer peripheral surface of the fixing portion 2.
Preferably, as shown in fig. 1 and 2, one end of the sixth side surface 32 is in arc transition connection with one end of the fourth side surface 22, the other end of the sixth side surface 32 is in arc transition connection with one end of the fifth side surface 31, and the other end of the fifth side surface 31 is in arc transition connection with one end of the third side surface 21. It will be appreciated that the connection between the sides of the weight 100 is in the form of an arc transition, which further reduces the wind resistance experienced by the weight 100 during rotation.
In some embodiments, as shown in fig. 1 and 2, the fixing portion 2 is provided with a mounting hole 23 penetrating through the fixing portion 2, and a center line of the mounting hole 23 is substantially parallel to the rotation center line 4. Preferably, the center line of the mounting hole 23 coincides with the center line of the circular arc surface enclosed by the fourth side 22 and the third side 21. According to the balance weight of the embodiment of the present invention, the balance weight 100 may be detachably coupled to the rotor 300 by inserting bolts into the mounting holes 23.
In some embodiments, as shown in fig. 1 and 2, the fixing portions 2 of the weight 100 are two, wherein one fixing portion 2 is disposed at one end of the body 1 along the length direction thereof (e.g., the left end of the fixing portion 2 in fig. 1), and the other fixing portion 2 is disposed at the other end of the body 1 along the length direction thereof (e.g., the right end of the fixing portion 2 in fig. 1). The balance weight 100 also has two windward portions 3, one windward portion 3 is disposed at one end of one fixing portion 2 away from the body 1, and the other windward portion 3 is disposed at one end of the other fixing portion 2 away from the body 1.
As shown in fig. 3 to 6, a rotor component according to an embodiment of another aspect of the present invention includes a rotor 300, an end plate 200, and a weight block 100. The end plate 200 is disposed at an end of the rotor 300, the weight 100 is a weight according to an embodiment of the present invention, and the weight 100 is disposed at a side of the end plate 200 away from the rotor 300, and a rotation center line 4 of the weight 100 is collinear with an axis of the rotor 300.
According to the rotor part disclosed by the embodiment of the invention, the disturbance to an oil sump of the compressor can be reduced, and the lubrication reliability of the rotor part is improved.
Alternatively, as shown in fig. 3 to 6, the end plates 200 are annular and have two end plates 200, the two end plates 200 are respectively disposed at the upper and lower ends of the rotor 300, the two balancing blocks 100 are respectively disposed at the upper and lower ends of the rotor 300 and connected to the end plates 200.
A rotor component according to an embodiment of a further aspect of the invention comprises a rotor component of an embodiment of the invention.
The compressor provided by the embodiment of the invention has good lubricating property and reliable operation.
A compressor according to some specific examples of the invention is described below with reference to the accompanying drawings.
As shown in fig. 1 to 6, a compressor according to an embodiment of the present invention includes rotor parts. The rotor part includes a rotor 300, an end plate 200, and a weight 100, and the weight 100 includes a body 1, a fixing portion 2, and a windward portion 3. The end plate 200 is annular, and the end plate 200 is established at the upper end of rotor 300, and the balancing piece 100 is established at the upper end of end plate 200, and the axis collineation of the rotation central line 4 of balancing piece 100 and rotor 300, balancing piece 100 can rotate around rotation central line 4 along with rotor 300.
As shown in fig. 1 and 2, the body 1 has a first side surface 11 and a second side surface 12 which are arranged opposite to each other in the front-rear direction of the body 1, the first side surface 11 is closer to the rotation center line 4 than the second side surface 12, and each of the first side surface 11 and the second side surface 12 is a circular arc surface which is convex toward a direction away from the rotation center line 4.
As shown in fig. 1 and 2, the projections of the first side surface 11 and the second side surface 12 on the projection plane orthogonal to the rotation center line 4 are parallel to each other, and the center of the outer contour of the projections of the first side surface 11 and the second side surface 12 on the projection plane orthogonal to the rotation center line 4 coincides with the projection point of the rotation center line 4 on the projection plane orthogonal to the rotation center line 4.
As shown in fig. 1 and 2, two fixing portions 2 are provided, and the two fixing portions 2 are respectively provided at both ends of the body 1 in the longitudinal direction thereof. The fixed portion 2 has a third side 21 and a fourth side 22 in the width direction thereof, the third side 21 being closer to the rotation center line 4 than the fourth side 22, the third side 21 being arc-transition-connected to the first side 11, and the fourth side 22 being arc-transition-connected to the second side 12.
As shown in fig. 1 and 2, the fourth side surface 22 is a circular arc surface that protrudes in a direction away from the rotation center line 4, and the third side surface 21 is a circular arc surface that protrudes in a direction adjacent to the rotation center line 4. And on a projection plane orthogonal to the rotation center line 4, a projection of the fourth side surface 22 and a projection of the third side surface 21 are on the same circle.
As shown in fig. 1 and 2, on the projection plane orthogonal to the rotation center line 4, the distance between the projection of the rotation center line 4 and the projection of the second side face 12 is L1, the distance between the projection of the rotation center line 4 and the projection of the fourth side face 22 is L2, and L2 > L1.
According to the balance block of the embodiment of the invention, when the balance block 100 rotates around the rotation center line 4, the fixed part 2 can be subjected to the resistance of the air flow, and because the distance L2 between the projection of the rotation center line 4 and the projection of the fourth side surface 22 is greater than the distance L1 between the projection of the rotation center line 4 and the projection of the second side surface 12, the negative pressure area between the air flow and the balance block 100 can be reduced, so that the resistance of the balance block 100 is reduced, and therefore, the wind resistance of the balance block in the operation of the embodiment of the invention is smaller, which is beneficial to improving the reliability of the compressor in the operation.
As shown in fig. 1 and 2, the fixing portion 2 is provided with a mounting hole 23 penetrating the fixing portion 2, and a center line of the mounting hole 23 is provided substantially parallel to the rotation center line 4. The center line of the mounting hole 23 coincides with the center line of the circular arc surface surrounded by the fourth side 22 and the third side 21.
As shown in fig. 1 and 2, the windward portions 3 are two, one windward portion 3 is provided at the left end of the fixing portion 2 on the left side of the main body 1, the other windward portion 3 is provided at the right end of the fixing portion 2 on the right side of the main body 1, and the windward portion 3 extends in the longitudinal direction of the main body 1. The windward portion 3 includes a fifth side surface 31 and a sixth side surface 32 in a width direction thereof, the fifth side surface 31 is adjacent to the rotation center line 4 than the sixth side surface 32, and the width of the windward portion 3 is smaller than the width of the fixing portion 2.
It is understood that the width of the windward portion 3 is the difference between the distance between the projection of the sixth side face 32 and the projection of the rotation center line 4 and the distance between the projection of the fifth side face 31 and the projection of the rotation center line 4 on the projection plane orthogonal to the rotation center line 4. The width of the fixing portion 2 is a difference between a distance between a projection of the fourth side surface 22 and a projection of the rotation center line 4 and a distance between a projection of the third side surface 21 and the projection of the rotation center line 4 on a projection plane orthogonal to the rotation center line 4.
As shown in fig. 1 and 2, the distance between the fifth side surface 31 and the sixth side surface 32 gradually decreases along the direction away from the body 1, and one end of the fifth side surface 31 away from the body 1 is in arc transition connection with one end of the sixth side surface 32 away from the body 1. Therefore, the balance weight of the embodiment of the invention can better divide the airflow through the windward part 3, so as to reduce the resistance of the airflow to the balance weight 100.
As shown in fig. 1 and 2, the fifth side surface 31 is an arc surface that protrudes in a direction away from the rotation center line 4, the sixth side surface 32 is a plane, and a connection surface between the fifth side surface 31 and the sixth side surface 32 is an arc surface. On a projection plane orthogonal to the rotation center line 4, a projection of a connection plane of the fifth side surface 31 and the sixth side surface 32 has a radius of curvature R1, and a projection of the fourth side surface 22 has a radius of curvature R2, where R1 < R2. It will be appreciated that the outer peripheral surface of the end of the windward portion 3 is "pointed" relative to the outer peripheral surface of the fixing portion 2. Therefore, the balance weight of the embodiment of the invention can better divide the airflow through the windward part 3, so as to reduce the resistance of the airflow to the balance weight 100.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (11)
1. A weight adapted to rotate about a centerline of rotation, the weight comprising:
a body having a first side and a second side which are oppositely arranged in a width direction thereof, the first side being adjacent to the rotation center line compared to the second side, the second side being an arc-shaped face which is convex toward a direction away from the rotation center line;
a fixing portion provided at an end portion of the body in a length direction of the body, the fixing portion having a third side surface and a fourth side surface in a width direction thereof, the third side surface being adjacent to the rotation center line compared to the fourth side surface, the third side surface being connected to the first side surface, the fourth side surface being connected to the second side surface, the fourth side surface being an arc-shaped surface protruding in a direction away from the rotation center line,
on a projection plane orthogonal to the rotation center line, the distance between the projection of the rotation center line and the projection of the second side surface is L1, the distance between the projection of the rotation center line and the projection of the fourth side surface is L2, and L2 is greater than L1;
the windward part, windward part locates the fixed part is kept away from the one end of body, windward part includes fifth side and sixth side on its width direction, the fifth side is towards keeping away from the convex arcwall face of direction of rotation center line, the fifth side compare in the sixth side is close to rotation center line, on the quadrature in rotation center line's projection plane, the fifth side with the radius of curvature of the projection of the connection face of sixth side is R1, the radius of curvature of the projection of fourth side is R2, wherein R1 < R2.
2. The weight of claim 1, wherein the first side is an arcuate surface that is convex away from the centerline of rotation.
3. The weight of claim 2, wherein the first side and the second side are both arcuate surfaces and the first side is arranged parallel to the second side.
4. The weight of claim 1, wherein the third side is an arcuate surface that is convex toward a direction adjacent the center line of rotation.
5. The weight of claim 4, wherein the third side and the fourth side are both circular arc surfaces, and a projection of the fourth side and a projection of the third side are on the same circle on a projection plane orthogonal to the rotation center line.
6. The weight of claim 1, wherein the windward portion has a width less than a width of the fixed portion.
7. The weight of claim 6, wherein the distance between the fifth side and the sixth side decreases in a direction away from the body, and an end of the fifth side away from the body is in arc transition with an end of the sixth side away from the body.
8. The counterbalance according to any one of claims 1 to 7, wherein the fixing portion is provided with a mounting hole extending therethrough, a center line of the mounting hole being arranged substantially parallel to the rotation center line.
9. The weight according to any one of claims 1-7, wherein there are two of said fastening portions, one of said fastening portions being located at one end of said body along its length and the other of said fastening portions being located at the other end of said body along its length.
10. A rotor component, comprising:
a rotor;
the end plate is arranged at the end part of the rotor;
a weight provided on a side of the end plate remote from the rotor, the weight being as defined in any one of claims 1 to 9, a center line of rotation of the weight being collinear with an axis of the rotor.
11. A compressor including a rotor component according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011256872.6A CN112555153B (en) | 2020-11-11 | 2020-11-11 | Balancing piece, rotor part and compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011256872.6A CN112555153B (en) | 2020-11-11 | 2020-11-11 | Balancing piece, rotor part and compressor |
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| Publication Number | Publication Date |
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| CN112555153A CN112555153A (en) | 2021-03-26 |
| CN112555153B true CN112555153B (en) | 2022-11-15 |
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| CN202011256872.6A Active CN112555153B (en) | 2020-11-11 | 2020-11-11 | Balancing piece, rotor part and compressor |
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| JP2005147078A (en) * | 2003-11-19 | 2005-06-09 | Matsushita Electric Ind Co Ltd | Hermetic electric compressor |
| CN207353978U (en) * | 2017-09-08 | 2018-05-11 | 宁波拓普智能刹车系统有限公司 | A kind of balance block structure of automotive electronics cooling water pump motor |
| CN208364379U (en) * | 2018-04-26 | 2019-01-11 | 上海海立电器有限公司 | The rotor balance of compressor, the electric machine assembly of compressor and compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS623187A (en) * | 1985-06-29 | 1987-01-09 | Toshiba Corp | Scroll type compressor |
| JP2006152838A (en) * | 2004-11-26 | 2006-06-15 | Fujitsu General Ltd | Compressor |
| CN211089338U (en) * | 2019-12-31 | 2020-07-24 | 南京力源汽车零部件有限公司 | Dynamic balance electronic water pump rotor |
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2020
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005147078A (en) * | 2003-11-19 | 2005-06-09 | Matsushita Electric Ind Co Ltd | Hermetic electric compressor |
| CN207353978U (en) * | 2017-09-08 | 2018-05-11 | 宁波拓普智能刹车系统有限公司 | A kind of balance block structure of automotive electronics cooling water pump motor |
| CN208364379U (en) * | 2018-04-26 | 2019-01-11 | 上海海立电器有限公司 | The rotor balance of compressor, the electric machine assembly of compressor and compressor |
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| CN112555153A (en) | 2021-03-26 |
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