CN220522790U - Vortex compressor rack mounting structure - Google Patents
Vortex compressor rack mounting structure Download PDFInfo
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- CN220522790U CN220522790U CN202321447293.9U CN202321447293U CN220522790U CN 220522790 U CN220522790 U CN 220522790U CN 202321447293 U CN202321447293 U CN 202321447293U CN 220522790 U CN220522790 U CN 220522790U
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- 238000007789 sealing Methods 0.000 claims description 25
- 238000004134 energy conservation Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The utility model provides a scroll compressor rack mounting structure, wherein a containing cavity is formed in a rack, and a shaft sleeve communicated with the containing cavity is arranged at the bottom of the rack; the movable vortex plate is movably arranged on the frame through an anti-rotation slip ring, and the crankshaft penetrates through the shaft sleeve and is inserted into the sleeve part of the movable vortex plate, and the movable vortex plate is characterized in that: the machine frame plate is arranged below the movable vortex plate in the accommodating cavity of the machine frame, the support part is provided with a movable plate end perforation, the machine frame plate is arranged in the accommodating cavity, the bottom surface of the base plate of the movable vortex plate is lapped on the top surface of the support part of the machine frame plate, and the sleeve part of the base plate is movably inserted into the movable plate end perforation of the machine frame plate, so that the support part of the machine frame plate supports the movable vortex plate. The utility model has simple structure and convenient processing and use, can greatly lighten the weight of the movable vortex plate, obviously improves the energy efficiency of the vortex compressor at high rotating speed, and is beneficial to energy conservation and emission reduction.
Description
Technical Field
The utility model relates to the technical field of scroll compressors, in particular to a frame mounting structure of a scroll compressor.
Background
The traditional high-pressure cavity variable frequency (variable speed) scroll compressor structure has the advantages that as the position of the frame for supporting the movable scroll is far away from the center of the movable scroll, the force arm for supporting force is long, the movable scroll is required to adopt a baseplate with enough thickness, the smaller deformation can be ensured under the action of gas force and supporting force, if the thickness of the baseplate is reduced, the deformation of the baseplate is increased, severe abrasion and axial sealing leakage are caused, and the compression efficiency and reliability are greatly reduced. In the structure, the weight of the movable vortex plate is increased due to the larger substrate thickness of the movable vortex plate and the sealing circular truncated cone structure at the bottom, the weight of the movable vortex plate is closely related to the energy efficiency of the vortex compressor, the heavier the movable vortex plate is, the more mechanical power loss of the compressor is caused under high rotation speed, the energy efficiency ratio is exponentially reduced, and the requirements of energy conservation and high efficiency of the market are difficult to meet.
The scroll compressor with the counterweight cover disclosed in the patent document CN209704840U, wherein the scroll compressor assembly comprises a fixed scroll, an movable scroll, a frame, an anti-rotation slip ring and the like, the back of the frame and the movable scroll form a back pressure cavity, the pressure of the back pressure cavity is slightly higher than the suction pressure, the back pressure cavity is used for counteracting the gas force generated by gas compression and acting on the movable scroll, and the back pressure cavity plays roles of supporting the movable scroll, ensuring axial vortex sealing and reducing friction power loss. The frame supports the outside that moves the vortex dish, and the support department is far away from the center of moving the vortex dish base plate relatively near the position of moving the vortex dish, leads to the arm of force of holding power longer, moves the vortex dish bottom and is provided with sealed round platform for the inside high pressure of isolated bearing and outside backpressure. The structure needs to weight the thickness of the baseplate of the movable vortex plate so as to ensure that the deformation amount is kept small under the action of gas force and rack supporting force.
Based on the above problems, the applicant proposes a technical solution of the present application.
Disclosure of Invention
The utility model aims to provide a frame mounting structure of a scroll compressor, which has the advantages of simple structure and convenient processing and use, can greatly lighten the weight of a movable scroll, remarkably improves the energy efficiency of the scroll compressor at a high rotating speed, and is beneficial to energy conservation and emission reduction.
The aim of the utility model can be achieved by the following technical scheme:
the scroll compressor rack mounting structure comprises a movable scroll, a rack and a crankshaft, wherein the movable scroll is provided with a baseplate, a scroll tooth part arranged on the top surface of the baseplate and a sleeve part arranged on the bottom surface of the baseplate; the machine frame is internally provided with a containing cavity, and the bottom of the machine frame is provided with a shaft sleeve communicated with the containing cavity; the movable vortex plate is movably arranged on the frame through an anti-rotation slip ring, and the crankshaft penetrates through the shaft sleeve and is inserted into the sleeve part of the movable vortex plate, and the movable vortex plate is characterized in that: the machine frame plate is arranged below the movable vortex plate in the accommodating cavity of the machine frame, the support part is provided with a movable plate end perforation, the machine frame plate is arranged in the accommodating cavity, the bottom surface of the base plate of the movable vortex plate is lapped on the top surface of the support part of the machine frame plate, and the sleeve part of the base plate is movably inserted into the movable plate end perforation of the machine frame plate, so that the support part of the machine frame plate supports the movable vortex plate.
Preferably, the lower part of the outer wall of the frame plate is provided with a mounting plate part, the top surface of the mounting plate part is provided with 2 key grooves which are symmetrically arranged, and the anti-rotation slip ring is movably arranged on the key grooves.
Preferably, an end of the key groove away from the supporting portion penetrates the mounting plate portion in a radial direction.
Preferably, a positioning boss part is arranged in the accommodating cavity of the rack and corresponds to the bottom surface of the mounting plate part, and the bottom surface of the mounting plate part is arranged on the top surface of the positioning boss part; the bottom of the frame plate is also provided with a plug part, and the plug part is inserted into the positioning boss part so that the frame plate is inserted into the frame.
Preferably, the outer wall of the plug part of the frame plate is provided with a first annular groove which is coaxially arranged, and a first sealing ring is arranged in the first annular groove, so that the outer wall of the plug part is in sealing contact with the inner wall of the positioning boss part.
Preferably, the mounting plate part of the frame plate is provided with a plurality of mounting holes, and the frame is provided with mounting counter bores corresponding to the mounting holes and connected in a one-to-one correspondence manner through fixing bolts.
Preferably, the outer wall of the mounting plate part is provided with a frame plate positioning plane, the inner wall of the frame is provided with a positioning convex block matched with the frame plate positioning plane, and the positioning convex block is provided with a frame positioning plane attached to the frame plate positioning plane, so that the frame plate is assembled with the frame in a positioning way.
Preferably, the frame plate has two symmetrically arranged frame plate positioning planes, and the frame plate positioning planes are parallel to the extending direction of the key groove.
Preferably, the top surface of the supporting part is provided with a second annular groove which is coaxially arranged, a second sealing ring is arranged in the second annular groove, and the bottom surface of the baseplate of the movable vortex plate is in sealing contact with the top surface of the supporting part of the frame plate.
Preferably, the top surface of the mounting plate part is provided with symmetrically arranged strip-shaped bosses at two sides of the key slot.
The utility model has the following substantial characteristics and progress:
1. according to the scroll compressor rack mounting structure, the rack and the rack plate are positioned through the positioning planes on the upper side and the lower side, positioning is not needed by means of high-precision positioning pin holes, the processing and mounting processes are simplified, meanwhile, the positioning planes are parallel to the 2 symmetrical key grooves formed in the mounting plate part of the rack plate, partial gaps are formed in the X axis direction of the rack plate, and allowance is reserved in the X axis direction of the key grooves, so that the anti-rotation slip ring only moves in the X direction, and the movement of the anti-rotation slip ring is not influenced. Furthermore, because the positioning plane is shorter, the rotating clearance of the vertical axis of the frame plate is very small, lower cost and lower processing precision can be realized, and thus the positioning and mounting efficiency between the frame plate and the frame is improved.
2. According to the frame mounting structure of the scroll compressor, the first annular groove and the second annular groove are respectively formed in the end face and the bottom of the top of the frame plate, and the first annular sealing ring and the second annular sealing ring are arranged in the corresponding grooves, so that a back pressure cavity and a high pressure cavity of the scroll compressor are isolated, a sealing round platform structure at the bottom of a moving scroll in a traditional structure is replaced, and the weight of the moving scroll is effectively reduced. The plane structure at the top of the frame plate can support the baseplate of the movable vortex plate, so that the movable vortex plate is supported, the axial vortex sealing is ensured, and the friction power loss is reduced.
3. According to the frame mounting structure of the scroll compressor, the supporting point of the top plane of the frame plate on the base plate of the movable scroll is closer to the center of the movable scroll, so that the supporting force arm is greatly reduced, the deformation of the base plate of the movable scroll under the action of gas force and supporting force is reduced, the weight of the movable scroll can be greatly reduced, the energy efficiency of the scroll compressor at high rotating speed is remarkably improved, and the energy conservation and emission reduction are facilitated.
Drawings
Fig. 1 is a partial cross-sectional view of a scroll compressor housing mounting structure of the present utility model for use in a scroll compressor.
Fig. 2 is a cross-sectional view of a scroll compressor frame mounting structure of the present utility model.
Fig. 3 is an exploded view of the assembled structure of the frame and frame plate of the present utility model.
Fig. 4 is a schematic view of the structure of the top surface of the frame plate of the present utility model.
Fig. 5 is a schematic view of the structure of the top surface of the frame of the present utility model.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
Examples
As shown in fig. 1 and 2, a frame mounting structure of a scroll compressor includes a movable scroll 1, a frame 2, a frame plate 4, an anti-rotation slip ring 5, and a crankshaft 3. The orbiting scroll 1 has a base plate 10, a wrap 11 provided on the top surface of the base plate 10, and a sleeve 12 provided on the bottom surface of the base plate 10. The frame 2 is a cylindrical structure with a shaft sleeve 20 at the center of the bottom, and a containing cavity 21 is arranged in the frame 2. The movable vortex plate 1 is movably arranged on the frame 2 through an anti-rotation slip ring 5. The crankshaft 3 is inserted into the sleeve portion 12 of the orbiting scroll 1 through the sleeve 20. The frame plate 4 is fixedly arranged in the accommodating cavity 21 of the frame 2 and is positioned below the movable scroll 1.
As shown in fig. 3, the center of the frame plate 4 has a supporting portion 40, the supporting portion 40 has a moving-disc end through hole 41, in this embodiment, the moving-disc end through hole 41 is specifically located at the center of the supporting portion 40, and the diameter of the moving-disc end through hole 41 is larger than the inner diameter of the shaft sleeve 20 of the frame 2. The bottom surface of the base plate 10 of the movable scroll 1 is placed on the top surface of the support portion 40 of the frame plate 4, and the sleeve portion 12 of the movable scroll 1 is movably inserted into the movable-disk-end through hole 41 of the frame plate 4.
The lower part of the outer wall of the supporting part 40 is provided with a coaxially arranged mounting plate part 42, the bottom surface of the accommodating cavity 21 of the frame 2 corresponding to the mounting plate part 42 is provided with a positioning boss part 23, the bottom surface of the mounting plate part 42 is arranged on the top surface of the positioning boss part 23, the bottom of the frame plate 4 is provided with a plug part 44, and the plug part 44 is inserted into the positioning boss part 23 to enable the frame plate 4 to be inserted into the frame 2. The outer wall of the plug part 44 of the frame plate 4 is provided with a first annular groove which is coaxially arranged, and a first sealing ring 45 is arranged in the first annular groove, so that the outer wall of the plug part 44 is in sealing contact with the inner wall of the positioning boss part 23. The top surface of the support portion 40 of the frame plate 4 has a second annular groove 481 coaxially provided, and a second seal ring 48 is installed in the second annular groove 481, so that the bottom surface of the base plate 10 of the orbiting scroll 1 is in sealing contact with the top surface of the support portion 40 of the frame plate 4. The first sealing ring 45 in the first annular groove and the second sealing ring 48 in the second annular groove 481 form sealing from the bottom and the top respectively, so that a back pressure cavity and a high pressure cavity in the scroll compressor are effectively isolated, a sealing round platform structure running at the bottom of the scroll in a traditional structure can be replaced, and the weight of the movable scroll 1 is effectively reduced. Meanwhile, the top surface of the supporting portion 40 of the frame plate 4 is a plane, and can support the base plate 10 of the movable scroll 1, thereby supporting the movable scroll 1, ensuring axial scroll sealing and reducing friction power loss. The supporting point formed by the supporting portion 40 of the frame plate 4 is closer to the center of the moving scroll 1, so that the supporting arm of force is greatly reduced, and the deformation of the base plate 10 of the moving scroll 1 caused by the action of the gas force and the supporting force is reduced. The thickness of the base plate 10 of the orbiting scroll 1 can be reduced by 3 to 5mm. The thickness of the base plate 10 is reduced by 3-5 mm, and the sealing round platform structure running at the bottom of the vortex plate in the traditional structure is removed, so that the weight of the movable vortex plate 1 can be reduced by 10% -40%, the weight of the movable vortex plate 1 is greatly reduced, the energy efficiency of the vortex compressor at high rotating speed is obviously improved, and the energy conservation and emission reduction are facilitated.
The top surface of the mounting plate 42 is provided with 2 symmetrically arranged key grooves 43, one end of the key groove 43 far away from the supporting part 40 penetrates through the mounting plate 42 along the radial direction, and two sides of each key groove are provided with symmetrically arranged bar-shaped bosses 46. The mounting plate part 42 is provided with a plurality of mounting holes 47, the frame 2 is provided with mounting counter bores 24 corresponding to the mounting holes 47, and each mounting hole 47 is connected with the corresponding mounting counter bore 24 in a one-to-one correspondence manner through the fixing bolts 6. The shape of the mounting hole 47 is set in correspondence with the shape of the fixing bolt 6, and the tip of the fixing bolt 6 is hidden in the mounting hole 47.
The outer wall of the mounting plate portion 42 of the frame plate 4 has 2 symmetrically arranged frame plate positioning planes 49, and the frame plate positioning planes 49 are parallel to the extending direction of the key groove 43. The inner wall of the frame 2 is provided with a positioning lug matched with the frame plate positioning plane 49, and the positioning lug is provided with a frame positioning plane 25 attached to the frame plate positioning plane 49, so that the frame plate 4 is assembled with the frame 2 in a positioning way. After the frame plate positioning plane 49 and the frame positioning plane 25 are mutually attached, each mounting perforation 47 and the corresponding mounting counter bore 24 are correspondingly connected by the fixing bolt 6, and the inner diameter of the accommodating cavity 21 of the frame 2 is slightly larger than the outer diameter of the mounting plate part 42 of the frame plate 4, so that the frame 2 and the frame plate 4 do not need to be assembled in a matched mode through high-precision positioning pin holes, and the assembly difficulty is simplified.
As shown in fig. 4 and 5, the frame plate positioning plane 49 and the frame positioning plane 25 are parallel to the 2 symmetrically arranged keyways 43 on the mounting plate portion 42, so that a part of clearance is provided in the X direction for the frame plate 4, after the convex key 51 at the bottom of the anti-rotation slip ring 5 is inserted into the keyways 43, the anti-rotation slip ring 5 can only move in the X direction, and the keyways 43 leave a margin in the X direction, so that the movement of the anti-rotation slip ring 5 is not affected. Because the frame positioning plane 25 is shorter, the rotating clearance of the frame plate 4 around the vertical axis is very small, and the structure of the frame plate 4 is beneficial to realizing lower cost and processing precision and efficiently realizing the positioning and mounting of the frame plate 4 and the frame 2. The structure of the key groove 43 penetrating the mounting plate 42 in the radial direction can also facilitate the discharge of the excessive lubricant in the key groove 43, thereby reducing the movable resistance of the anti-rotation slip ring 5.
When the scroll compressor of the utility model is operated, the supporting part of the movable scroll 1 moves inwards and is closer to the center of the movable scroll 1, the supporting arm of force of the movable scroll 1 is improved, and meanwhile, the sealing surface at the bottom of the bearing of the movable scroll 1 is canceled, thereby effectively reducing the weight of the movable scroll 1, reducing the mechanical work of driving the movable scroll when the compressor is operated and improving the performance of the compressor at high rotating speed.
Claims (10)
1. The scroll compressor rack mounting structure comprises a movable scroll, a rack and a crankshaft, wherein the movable scroll is provided with a baseplate, a scroll tooth part arranged on the top surface of the baseplate and a sleeve part arranged on the bottom surface of the baseplate; the machine frame is internally provided with a containing cavity, and the bottom of the machine frame is provided with a shaft sleeve communicated with the containing cavity; the movable vortex plate is movably arranged on the frame through an anti-rotation slip ring, and the crankshaft penetrates through the shaft sleeve and is inserted into the sleeve part of the movable vortex plate, and the movable vortex plate is characterized in that: the machine frame plate is arranged below the movable vortex plate in the accommodating cavity of the machine frame, the support part is provided with a movable plate end perforation, the machine frame plate is arranged in the accommodating cavity, the bottom surface of the base plate of the movable vortex plate is lapped on the top surface of the support part of the machine frame plate, and the sleeve part of the base plate is movably inserted into the movable plate end perforation of the machine frame plate, so that the support part of the machine frame plate supports the movable vortex plate.
2. The scroll compressor frame mounting structure of claim 1, wherein: the lower part of the outer wall of the frame plate is provided with a mounting plate part, the top surface of the mounting plate part is provided with 2 key grooves which are symmetrically arranged, and the anti-rotation slip ring is movably arranged on the key grooves.
3. A scroll compressor frame mounting structure as defined in claim 2, wherein: one end of the key groove, which is far away from the supporting part, radially penetrates through the mounting plate part.
4. A scroll compressor frame mounting structure as defined in claim 2, wherein: the bottom surface of the accommodating cavity of the rack, which corresponds to the mounting plate part, is provided with a positioning boss part, and the bottom surface of the mounting plate part is arranged on the top surface of the positioning boss part; the bottom of the frame plate is also provided with a plug part, and the plug part is inserted into the positioning boss part so that the frame plate is inserted into the frame.
5. The scroll compressor frame mounting structure of claim 4, wherein: the outer wall of the plug part of the frame plate is provided with a first annular groove which is coaxially arranged, and a first sealing ring is arranged in the first annular groove, so that the outer wall of the plug part is in sealing contact with the inner wall of the positioning boss part.
6. A scroll compressor frame mounting structure as defined in claim 2, wherein: the mounting plate part of the frame plate is provided with a plurality of mounting holes, and the frame is provided with mounting counter bores corresponding to the mounting holes and connected in a one-to-one correspondence manner through fixing bolts.
7. A scroll compressor frame mounting structure as defined in claim 2, wherein: the outer wall of the mounting plate part is provided with a frame plate positioning plane, the inner wall of the frame is provided with a positioning lug matched with the frame plate positioning plane, and the positioning lug is provided with a frame positioning plane attached to the frame plate positioning plane, so that the frame plate is assembled with the frame in a positioning way.
8. The scroll compressor frame mounting structure of claim 7, wherein: the rack plate is provided with two symmetrically arranged rack plate positioning planes, and the rack plate positioning planes are parallel to the extending direction of the key grooves.
9. A scroll compressor frame mounting structure as claimed in any one of claims 1 to 8, wherein: the top surface of the supporting part is provided with a second annular groove which is coaxially arranged, a second sealing ring is arranged in the second annular groove, and the bottom surface of the baseplate of the movable vortex plate is in sealing contact with the top surface of the supporting part of the frame plate.
10. A scroll compressor frame mounting structure as claimed in any one of claims 2 to 8, wherein: the top surface of the mounting plate part is provided with symmetrically arranged strip-shaped bosses on two sides of the key slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321447293.9U CN220522790U (en) | 2023-06-08 | 2023-06-08 | Vortex compressor rack mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321447293.9U CN220522790U (en) | 2023-06-08 | 2023-06-08 | Vortex compressor rack mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220522790U true CN220522790U (en) | 2024-02-23 |
Family
ID=89935837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321447293.9U Active CN220522790U (en) | 2023-06-08 | 2023-06-08 | Vortex compressor rack mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220522790U (en) |
-
2023
- 2023-06-08 CN CN202321447293.9U patent/CN220522790U/en active Active
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