CN117006045A - Anti-rotation mechanism for scroll compressor and scroll compressor - Google Patents

Anti-rotation mechanism for scroll compressor and scroll compressor Download PDF

Info

Publication number
CN117006045A
CN117006045A CN202311151575.9A CN202311151575A CN117006045A CN 117006045 A CN117006045 A CN 117006045A CN 202311151575 A CN202311151575 A CN 202311151575A CN 117006045 A CN117006045 A CN 117006045A
Authority
CN
China
Prior art keywords
shaft
gap
installation space
rotation mechanism
scroll compressor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311151575.9A
Other languages
Chinese (zh)
Inventor
许静如
魏明波
王澎
张涛
刘云箫
张江彭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beehive Weiling Power Technology Jiangsu Co ltd
Original Assignee
Beehive Weiling Power Technology Jiangsu Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beehive Weiling Power Technology Jiangsu Co ltd filed Critical Beehive Weiling Power Technology Jiangsu Co ltd
Priority to CN202311151575.9A priority Critical patent/CN117006045A/en
Publication of CN117006045A publication Critical patent/CN117006045A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
    • 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
    • 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
    • F04C29/04—Heating; Cooling; Heat insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C37/00—Cooling of bearings
    • F16C37/007—Cooling of bearings of rolling bearings
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • 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
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • 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
    • F04C2240/00—Components
    • F04C2240/80—Other components

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

The application discloses an anti-rotation mechanism for a scroll compressor and the scroll compressor, wherein the anti-rotation mechanism comprises: a crankshaft, a first gap is formed between the end part of the first shaft and the inner wall of the first installation space, a second gap is formed between the end part of the second shaft and the inner wall of the second installation space, and an air flow channel which communicates the first gap with the second gap is formed in the crankshaft; the upper bearing is provided with a first heat dissipation gap communicated with the second gap; and the lower bearing is provided with a second heat dissipation gap communicated with the first gap. According to the anti-rotation mechanism, the air flow channel is formed in the crank shaft, the air flow channel is used for communicating the first gap with the second gap, the upper bearing is provided with the first heat dissipation gap communicated with the second gap, the lower bearing is provided with the second heat dissipation gap communicated with the first gap, and air flow can circularly flow in the crank shaft, the upper bearing and the lower bearing, so that cooling of the crank shaft, the upper bearing and the lower bearing is realized.

Description

Anti-rotation mechanism for scroll compressor and scroll compressor
Technical Field
The application relates to the technical field of scroll compressors, in particular to an anti-rotation mechanism for a scroll compressor and the scroll compressor.
Background
In the related art, in the running process of the turbine compressor, as the rotation speed of the anti-rotation mechanism is the same as that of the vortex rotating disk, the heat generated by the anti-rotation mechanism is heated and expanded by the crank and the bearing, so that the abrasion of the crank and the bearing is increased, the noise is generated in the vortex compressor, and the reliability of the vortex compressor is reduced.
In addition, in the rotation process of the scroll compressor, the temperature of the anti-rotation mechanism can be gradually increased, the evaporation speed of the lubricating grease is increased along with the increase of the temperature of the anti-rotation mechanism, and the lubricating grease is easy to completely evaporate after not being maintained in time, so that the anti-rotation mechanism is heated and worn and loses efficacy, and the reliability of the scroll compressor in working is reduced.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present application is to propose an anti-rotation mechanism for a turbocompressor. According to the anti-rotation mechanism, the air flow channel is formed in the crank shaft, the air flow channel is used for communicating the first gap with the second gap, the upper bearing is provided with the first heat dissipation gap communicated with the second gap, the lower bearing is provided with the second heat dissipation gap communicated with the first gap, and air flow can circularly flow in the crank shaft, the upper bearing and the lower bearing, so that cooling of the crank shaft, the upper bearing and the lower bearing is realized.
The application also provides a scroll compressor with the anti-rotation mechanism.
The anti-rotation mechanism for a scroll compressor according to the present application includes: a housing on which an air inlet is formed; the rack is arranged in the shell, and a first installation space is formed in the rack; the vortex moving disc is arranged on the frame, a second installation space is formed in the vortex moving disc, and a cooling hole for communicating the second installation space with the air inlet is formed in the vortex moving disc; the crankshaft is provided with a first shaft and a second shaft, the first shaft is accommodated in the first installation space and is matched with the frame, a first gap is formed between the end part of the first shaft and the inner wall of the first installation space, the second shaft is accommodated in the second installation space and is matched with the vortex moving disc, a second gap is formed between the end part of the second shaft and the inner wall of the second installation space, and an air flow channel which is used for communicating the first gap with the second gap is formed in the crankshaft; an upper bearing disposed between the scroll and the crank shaft, the upper bearing being provided with a first heat radiation gap communicating with the second gap; the lower bearing is arranged between the frame and the crank shaft, and the lower bearing is provided with a second heat dissipation gap communicated with the first gap.
According to the anti-rotation mechanism, the first installation space is formed in the frame, the second installation space is formed in the vortex moving plate, the cooling hole which is used for communicating the external environment with the second installation space is formed in the vortex moving plate, the air flow channel is formed in the crankshaft, the first installation space is communicated with the second installation space, the external air flow can enter the second installation space through the cooling hole and circularly flow between the second installation space and the first installation space through the air flow channel, so that the crankshaft is cooled, abrasion between the crankshaft and other parts is effectively prevented, the reliability and stability of the working process of the vortex compressor are improved, in addition, the crankshaft is further provided with the upper bearing and the lower bearing, the upper bearing is provided with the first heat dissipation gap which is communicated with the second space, the lower bearing is provided with the second heat dissipation gap which is communicated with the first installation space, and the air flow can flow into the upper bearing and the lower bearing through the first heat dissipation gap and the second heat dissipation gap in the process of flowing in the first installation space and the second installation space, and the cooling of the upper bearing and the lower bearing is realized.
According to some embodiments of the application, the upper bearing is sleeved on the outer periphery of the second shaft, and a third heat dissipation gap communicated with the second gap is formed between the upper bearing and the outer periphery of the second shaft; the lower bearing is sleeved on the periphery of the first shaft, and a fourth heat dissipation gap communicated with the first gap is formed between the lower bearing and the periphery of the first shaft.
According to some embodiments of the application, the free ends of the first and second shafts taper in diameter in directions away from each other.
According to some embodiments of the application, the upper bearing comprises: the first inner ring is sleeved on the periphery of the second shaft; the first outer ring is arranged on the periphery of the first inner ring, and is matched with the vortex movable disk; the lower bearing comprises: the second inner ring is sleeved on the periphery of the first shaft; the second outer ring is arranged on the periphery of the second inner ring, and the second outer ring is matched with the frame.
According to some embodiments of the application, the upper bearing is configured to be sleeved on the second shaft and is sequentially arranged in the axial direction; the lower bearing is configured to be sleeved on the first shaft and is sequentially arranged in the axial direction.
According to some embodiments of the application, at least one of the first inner race and the second shaft are constructed as an integral piece, and at least one of the second inner race and the first shaft are constructed as an integral piece.
According to some embodiments of the application, a scroll includes: the movable disc body is provided with the second installation space which is opened towards one end; the first fastening cover is fixed with the movable disc body and seals the second installation space, and the first fastening cover is abutted to the end face of the upper bearing.
According to some embodiments of the application, the rack comprises: the rack body is internally provided with the first installation space which is opened towards one end; the rear cover is arranged on the frame body and seals the first installation space, a first gap is formed between the rear cover and the first shaft, and the rear cover is abutted to the end part of the lower bearing.
According to some embodiments of the application, a groove recessed away from the second axis is formed in the back cover plate, the first gap being formed in the groove.
The scroll compressor according to the present application is briefly described as follows.
According to the application, the vortex compressor is provided with the anti-rotation mechanism in any one of the embodiments, and the stability and the reliability of the vortex compressor in operation are improved because the vortex compressor is provided with the anti-rotation mechanism in any one of the embodiments, so that the vortex compressor can be cooled when the temperature of the anti-rotation mechanism is increased in the operation process, the temperature of the anti-rotation mechanism is kept within a certain range, and the stability and the reliability of the vortex compressor in operation are improved.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a cross-sectional view of an anti-rotation mechanism according to one embodiment of the present application.
Reference numerals:
an anti-rotation mechanism 100;
a housing 11, a frame body 12, a movable disk body 13, a first fastening cover 14, and a rear cover 15;
a first shaft 161, a second shaft 162, an upper bearing 163, and a lower bearing 164;
the first gap 101, the second gap 102, the air flow channel 103, the cooling hole 104, the third heat dissipation gap 105, and the fourth heat dissipation gap 106.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
In the related art, in the running process of the turbine compressor, as the rotation speed of the anti-rotation mechanism is the same as that of the vortex rotating disk, the heat generated by the anti-rotation mechanism is heated and expanded by the crank and the bearing, so that the abrasion of the crank and the bearing is increased, the noise is generated in the vortex compressor, and the reliability of the vortex compressor is reduced.
In addition, in the rotation process of the scroll compressor, the temperature of the anti-rotation mechanism can be gradually increased, the evaporation speed of the lubricating grease is increased along with the increase of the temperature of the anti-rotation mechanism, and the lubricating grease is easy to completely evaporate after not being maintained in time, so that the anti-rotation mechanism is heated and worn and loses efficacy, and the reliability of the scroll compressor in working is reduced.
An anti-rotation mechanism for a scroll compressor according to an embodiment of the present application is described below with reference to fig. 1.
The anti-rotation mechanism 100 for a scroll compressor according to the present application includes: a housing 11, a frame, a scroll, a crank shaft, an upper bearing 163, and a lower bearing 164, wherein an air inlet is formed on the housing 11; the frame is arranged in the shell 11, and a first installation space is formed in the frame; the vortex moving disc is arranged on the frame, a second installation space is formed in the vortex moving disc, and a cooling hole 104 for communicating the second installation space with the air inlet is formed in the vortex moving disc; the crankshaft is provided with a first shaft 161 and a second shaft 162, the first shaft 161 is accommodated in the first installation space and is matched with the frame, a first gap 101 is formed between the end part of the first shaft 161 and the inner wall of the first installation space, the second shaft 162 is accommodated in the second installation space and is matched with the vortex disk, a second gap 102 is formed between the end part of the second shaft 162 and the inner wall of the second installation space, and an air flow channel 103 which is used for communicating the first gap 101 with the second gap 102 is formed in the crankshaft; the upper bearing 163 is disposed between the vortex disk and the crank shaft, and the upper bearing 163 is provided with a first heat dissipation gap communicated with the second gap 102; the lower bearing 164 is disposed between the frame and the crank shaft, and the lower bearing 164 is provided with a second heat dissipation gap communicating with the first gap 101.
In the running process of the scroll compressor, the tangential force acting on the scroll rotating disk generates a rotation moment which leads the scroll to rotate around the eccentric line of the main shaft, and the rotation moment damages the normal work of the scroll compressor, so that the rotation of the scroll rotating disk is strictly limited by arranging the rotation preventing mechanism 100 inside the scroll compressor, thereby ensuring the correct engagement of the scroll rotating disk and the fixed disk, and ensuring the stable and reliable work of the scroll compressor.
In some embodiments, the anti-rotation mechanism 100 is composed of a shell 11, a frame, a vortex moving disc, a crank shaft, an upper bearing 163 and a lower bearing 164, an air inlet and an air outlet are formed on the shell 11, the air inlet can be communicated with the external environment, the air outlet can be communicated with other devices, the communicating object of the air outlet depends on the application occasion of the vortex compressor, the frame is arranged in the shell 11, the frame can be used for supporting and fixing each part in the vortex compressor and protecting and isolating the parts, the vortex moving disc is arranged on the frame, a first installation space is formed in the frame, a second installation space is formed in the vortex moving disc, a cooling hole 104 is further formed on the vortex moving disc, the air inlet is communicated with the second installation space through the cooling hole 104, and the cooling hole 104 can guide the air flow entering the interior of the vortex compressor. The housing 11 is further provided therein with a crank shaft, the crank shaft including a first shaft 161 and a second shaft 162, the first shaft 161 being accommodated in the first installation space, the second shaft 162 being accommodated in the second installation space, a lower bearing 164 being provided between at least part of an outer circumferential wall of the first shaft 161 and at least part of an inner wall of the first installation space, an upper bearing 163 being provided between at least part of an outer circumferential wall of the second shaft 162 and at least part of an inner wall of the second installation space, the rotation preventing mechanism 100 performing circumferential limitation on the orbiting plate through the crank shaft, the upper bearing 163 and the lower bearing 164, in particular, when the orbiting plate has a tendency to rotate, because the vortex rotating disc is circumferentially provided with at least three identical anti-rotation mechanisms 100, and the relative positions of the anti-rotation mechanisms are fixed, because the first shaft 161 of the anti-rotation mechanism 100 is fixed in the frame, the first shaft 161 can only rotate in situ and cannot generate circumferential angular displacement, the second shaft 162 is tightly arranged in the vortex rotating disc through the upper bearing 163, the vortex rotating disc cannot generate circumferential angular displacement due to the limitation of three crankshafts at the same time, namely cannot rotate, and the eccentric distances of the three crankshafts are equal to the rotation radius of the vortex rotating disc, namely the eccentric distance of the eccentric shaft, so that the vortex rotating disc can only revolve around the rotation center of the eccentric shaft, namely do translational rotation motion.
Further, a first gap 101 is formed between an end of the first shaft 161 and at least a part of an inner wall of the first installation space, a second gap 102 is formed between an end of the second shaft 162 and at least a part of an inner wall of the second installation space, an air flow passage 103 is formed in the crank shaft, and the air flow passage 103 penetrates both ends of the crank shaft and communicates the first gap 101 with the second gap 102. The air flow entering the turbine compressor from the air inlet enters the second gap 102 through the cooling hole 104, the air flow in the second gap 102 is guided into the first gap 101 through the air flow channel 103, and the air flow flowing into the first gap 101 can flow back to the second gap 102 and then be discharged from the air outlet, and the air flow continuously flows in the process, so that the cooling of the crankshaft is realized, the abrasion of the crankshaft is reduced, and the reliability and the stability of the scroll compressor in working are improved; and be provided with first heat dissipation clearance on the upper bearing 163, be provided with the second heat dissipation clearance on the lower bearing 164, first heat dissipation clearance and second clearance 102 intercommunication, second heat dissipation clearance and first clearance 101 intercommunication, the air current in the second clearance 102 can diffuse to in the first heat dissipation clearance, thereby realize the cooling to upper bearing 163, the air current in the first clearance 101 can diffuse to in the second heat dissipation clearance, thereby realize the cooling to lower bearing 164, in scroll compressor operation process, effectively prevent upper bearing 163, lower bearing 164, the thermal expansion of crank axle three, reduce upper bearing 163, lower bearing 164, the wearing and tearing of crank axle, scroll compressor operational reliability and stability have been improved.
In addition, in the process of assembling the anti-rotation mechanism 100, grease is smeared on the upper bearing 163, the lower bearing 164, the crank shaft and other parts in advance, and because the air flow can flow in the crank shaft, the upper bearing 163 and the lower bearing 164 through the air flow channel 103 and the first heat dissipation gap and the second heat dissipation gap, the crank shaft, the upper bearing 163 and the lower bearing 164 are cooled, so that the evaporation speed of the grease is slowed, a plurality of grease injecting holes are not required to be arranged on the vortex moving plate or the shell 11, the whole manufacturing precision of the vortex compressor is improved, and the manufacturing cost is reduced.
According to the anti-rotation mechanism 100, a first installation space is formed in a frame, a second installation space is formed in a vortex moving plate, a cooling hole 104 which is used for communicating an external environment with the second installation space is formed in the vortex moving plate, an air flow channel 103 is formed in a crankshaft, the air flow channel 103 is used for communicating the first installation space with the second installation space, external air flow can enter the second installation space through the cooling hole 104 and circularly flow between the second installation space and the first installation space through the air flow channel 103, so that the crankshaft is cooled, abrasion between the crankshaft due to thermal expansion and other parts is effectively prevented, the reliability and stability of the vortex compressor in operation are improved, an upper bearing 163 and a lower bearing 164 are further arranged on the crankshaft, a first heat dissipation gap which is used for communicating the second space is formed in the upper bearing 163, a second heat dissipation gap which is used for communicating the first installation space is formed in the lower bearing 164, and air flow can flow into the upper bearing 163 and the lower bearing 164 through the first heat dissipation gap and the second heat dissipation gap in the process of flowing the first installation space and the second installation space, and the cooling of the upper bearing 163 and the lower bearing 164 is achieved.
According to some embodiments of the present application, the upper bearing 163 is sleeved on the outer periphery of the second shaft 162, and a third heat dissipation gap 105 communicating with the second gap 102 is formed between the upper bearing 163 and the outer periphery of the second shaft 162; the lower bearing 164 is fitted around the outer periphery of the first shaft 161, and a fourth heat radiation gap 106 communicating with the first gap 101 is formed between the lower bearing 164 and the outer periphery of the first shaft 161.
In some embodiments, a first step surface and a second step surface are formed on the first shaft 161 and the second shaft 162 respectively, the upper bearing 163 is sleeved on the periphery of the second shaft 162, one end of the upper bearing 163 is abutted against the first step surface, a third heat dissipation gap 105 is formed between the other end of the upper bearing 163 and the second shaft 162, external air flow enters the second gap 102 from the cooling hole 104, the air flow in the second gap 102 can be diffused into the third heat dissipation gap 105, so that the upper bearing 163 is cooled, the lower bearing 164 is sleeved on the periphery of the first shaft 161, one end of the lower bearing 164 is abutted against the second step surface, a fourth heat dissipation gap 106 is formed between the other end of the lower bearing 164 and the first shaft 161, the air flow in the second gap 102 flows into the first gap 101 through the air flow channel 103, and the air flow in the first gap 101 can be diffused into the fourth heat dissipation gap 106, thereby realizing cooling of the lower bearing 164 and the frame, and further effectively preventing the upper bearing 163, the lower bearing 164 and the lower bearing 164 from being cooled, and the scroll compressor from being cooled in the running process, and the scroll wear stability is improved. According to some embodiments of the application, the free ends of the first shaft 161 and the second shaft 162 taper in diameter in directions away from each other.
In some embodiments, a first annular inclined surface is formed on the free end of the first shaft 161, a second annular inclined surface is formed on the free end of the second shaft 162, the diameters of the first annular inclined surface and the second annular inclined surface gradually decrease in the direction towards each other, so that a certain space exists between the free end of the first shaft 161 and the end of the lower bearing 164 to form a fourth heat dissipation gap 106, a certain space exists between the free end of the second shaft 162 and the end of the upper bearing 163 to form a third heat dissipation gap 105, external air flow enters the second gap 102 from the cooling hole 104, the air flow in the second gap 102 can diffuse into the third heat dissipation gap 105 to realize cooling of the upper bearing 163, the air flow in the second gap 102 flows into the first gap 101 through the air flow channel 103, and the air flow in the first gap 101 can diffuse into the fourth heat dissipation gap 106 to realize cooling of the lower bearing 164 and cooling of the rack.
According to some embodiments of the application, the upper bearing 163 includes: the first inner ring and the first outer ring are sleeved on the periphery of the second shaft 162; the first outer ring is arranged on the periphery of the first inner ring and is matched with the vortex movable disk; the lower bearing 164 includes: a second inner ring and a second outer ring, the second inner ring being sleeved on the outer periphery of the first shaft 161; the second outer ring is arranged on the periphery of the second inner ring, and the second outer ring is matched with the frame.
In some embodiments, the upper bearing 163 is formed of a first inner ring, a first outer ring and balls, the first inner ring is sleeved on at least part of the outer periphery of the second shaft 162, the first outer ring is attached to at least part of the inner wall of the scroll, the first outer ring is arranged on the outer periphery of the first inner ring, rails are formed on one side of the first outer ring and the first inner ring facing each other, the balls are arranged in the rails, the first inner ring can rotate along with the second shaft 162, and the first outer ring is kept stationary relative to the first inner ring so as to limit the rotation of the scroll. The lower bearing 164 is composed of a second inner ring, a second outer ring and balls, the second inner ring is sleeved on at least part of the outer circumference of the first shaft 161, the second outer ring is attached to at least part of the inner wall of the frame, the second outer ring is arranged on the outer circumference of the second inner ring, rails are formed on one sides of the first outer ring and the first inner ring facing each other, the balls are arranged in the rails, the second inner ring can rotate along with the first shaft 161, and the second outer ring is kept stationary relative to the second inner ring so as to limit the rotation of the vortex rotating disc. According to some embodiments of the present application, the upper bearing 163 is configured as a plurality of sleeves that are sleeved on the second shaft 162 and are sequentially arranged in the axial direction; the lower bearing 164 is configured to be fitted over the first shaft 161 and is arranged in sequence in the axial direction.
In some embodiments, the anti-rotation mechanism 100 in the prior art generally employs a single upper bearing 163 and a single lower bearing 164 at two ends of the crankshaft, and the contact stress of the single upper bearing 163 or the single lower bearing 164 is high, the shock resistance is poor, the service life is low under high-speed heavy load, the shock absorption capability is low, and a large noise is generated during operation. In order to solve the above problems, in the present application, the upper bearing 163 is configured as two bearings which are sleeved on the second shaft 162 and are sequentially arranged in the axial direction, the lower bearing 164 is configured as two bearings which are sleeved on the first shaft 161 and are sequentially arranged in the axial direction, both ends of the crank shaft are matched with the upper bearing 163 or the lower bearing 164 which are installed in pairs, and the paired upper bearing 163 and lower bearing 164 are installed in parallel to share the load together, so that the service life and stability of the anti-rotation mechanism 100 are improved, the noise is less when the scroll compressor operates, and the working accuracy of the scroll compressor can be improved.
According to some embodiments of the application, the at least one first inner ring is configured as an integral piece with the second shaft 162 and the at least one second inner ring is configured as an integral piece with the first shaft 161.
The first inner ring of the upper bearing 163 may be constructed as an integral structure with the second shaft 162, and the second inner ring of the lower bearing 164 may be constructed as an integral structure with the first shaft 161, on the one hand, the first inner ring and the second inner ring may be manufactured with the crank shaft through the same mold, thereby reducing the number of mold openings, reducing the number of manufacturing parts and manufacturing steps of the anti-rotation mechanism 100, improving the production efficiency of the anti-rotation mechanism 100, and reducing the production cost; on the other hand, the integration level of the anti-rotation mechanism 100 is improved, so that the assembly and disassembly of the anti-rotation mechanism 100 are simpler, the assembly error of the anti-rotation mechanism 100 is reduced, the abrasion among all parts in the anti-rotation mechanism 100 is reduced, and the working reliability of the anti-rotation mechanism 100 is improved.
According to some embodiments of the application, a scroll includes: a movable disk body 13 and a first fastening cover 14, wherein a second installation space which is opened towards one end is formed on the movable disk body 13; the first fastening cover 14 is fixed to the movable disk body 13 and closes the second installation space, and the first fastening cover 14 abuts against an end surface of the upper bearing 163.
In some embodiments, the vortex disk is composed of a movable disk body 13 and a first fastening cover 14, a second installation space extending towards the direction of the lower bearing 164 and being opened is formed on the movable disk body 13, the first fastening cover 14 is connected with the open end of the movable disk body 13, the first fastening cover 14 can close at least part of the open end of the second installation space, the first fastening cover 14 is also abutted against the end face of the first outer ring of the upper bearing 163, so that the first outer ring of the upper bearing 163 cannot rotate relative to the first inner ring, on the other hand, during the rotation process of the movable disk body 13, the first fastening cover 14 can be used for preventing the upper bearing 163 from loosening or falling off due to the action of inertia force and vortex force, and meanwhile, the first fastening cover 14 can provide stable support and fixing for the upper bearing 163, so that the upper bearing 163 and the movable disk body 13 can always keep the correct position and balance, and safety and reliability during the operation of the vortex compressor are improved.
According to some embodiments of the application, the rack comprises: a frame body 12 and a rear cover 15, wherein a first installation space which is opened towards one end is formed in the frame body 12; the rear cover 15 is disposed on the frame body 12 and closes the first installation space, a first gap 101 is formed between the rear cover 15 and the first shaft 161, and the rear cover 15 abuts against an end portion of the lower bearing 164.
In some embodiments, the rack is composed of a rack body 12 and a rear cover 15, a first installation space is formed in the rack body 12, one end of the first installation space is opened towards the direction close to the upper bearing 163, the other end of the first installation space is opened towards the direction far away from the lower bearing 164, the rear cover 15 is arranged at one end of the rack body 12, which is opened towards the direction far away from the lower bearing 164, the rear cover 15 can seal the first installation space towards the opening opened towards the direction close to the upper bearing 163, the lower bearing 164 is in a sealed space, dust, dirt and other impurities are prevented from entering the first installation space, cleaning and normal lubrication of the lower bearing 164 are ensured, the service life of the lower bearing 164 is prolonged, a first gap 101 is formed between the rear cover 15 and the end face of the first shaft 161, air flow can flow into the first gap 101 through the air flow channel 103 and then spread to the fourth heat dissipation gap 106, cooling of the rack and the lower bearing 164 is realized, the rear cover 15 and the second end of the lower bearing 164 are sealed, the rear cover 15 can provide a stable supporting position and a stable running position of the lower bearing 164, and a stable running position of the lower bearing 164 is kept against the lower bearing 164, or other balanced and the stable running is prevented.
According to some embodiments of the present application, a groove recessed toward away from the first shaft 161 is formed in the rear cover 15, and the first gap 101 is formed in the groove.
In some embodiments, a groove is formed at one end of the rear cover 15, which is close to the first shaft 161, the periphery of the groove is abutted against the end face of the second outer ring of the lower bearing 164, a first gap 101 is formed in the groove, air flows into the first gap 101 from the second gap 102 through the air flow channel 103, and because the groove can seal the first installation space, the air cannot flow out from the rear cover 15, at least part of the air flows are diffused into the fourth heat dissipation gap 106 and the second heat dissipation gap, so as to realize cooling of the rack and the lower bearing 164, and at least the other part of the air flows back into the second gap 102 from the air flow channel 103, so that the cooling effect on the crankshaft is further improved.
The scroll compressor according to the present application is briefly described as follows.
The scroll compressor according to the present application is provided with the anti-rotation mechanism 100 according to any one of the above embodiments, and since the scroll compressor according to the present application is provided with the anti-rotation mechanism 100 according to any one of the above embodiments, the temperature of the anti-rotation mechanism 100 can be cooled when the temperature of the anti-rotation mechanism 100 increases during operation of the scroll compressor according to the present application, so that the temperature of the anti-rotation mechanism 100 is maintained within a certain range, and stability and reliability of the scroll compressor when in operation are improved.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", 5 "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
In the description of the application, a "first feature" or "second feature" may include one or more of such features. In the description of the present application, "plurality" means two or more.
In the description of the application, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.
In the description of the application, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application.
In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An anti-rotation mechanism for a scroll compressor, comprising:
a housing (11), wherein an air inlet is formed on the housing (11);
the rack is arranged in the shell (11), and a first installation space is formed in the rack;
the vortex moving disc is arranged on the frame, a second installation space is formed in the vortex moving disc, and a cooling hole (104) for communicating the second installation space with the air inlet is formed in the vortex moving disc;
a crank shaft provided with a first shaft (161) and a second shaft (162), wherein the first shaft (161) is accommodated in the first installation space and is matched with the frame, a first gap (101) is formed between the end part of the first shaft (161) and the inner wall of the first installation space, the second shaft (162) is accommodated in the second installation space and is matched with the vortex moving disc, a second gap (102) is formed between the end part of the second shaft (162) and the inner wall of the second installation space, and an air flow channel (103) for communicating the first gap (101) with the second gap (102) is formed in the crank shaft;
an upper bearing (163), the upper bearing (163) being provided between the scroll and the crank shaft, and the upper bearing (163) being provided with a first heat radiation gap communicating with the second gap (102);
-a lower bearing (164), the lower bearing (164) being arranged between the frame and the crank shaft, and the lower bearing (164) being provided with a second heat dissipation gap communicating with the first gap (101).
2. The anti-rotation mechanism (100) for a scroll compressor according to claim 1, wherein,
the upper bearing (163) is sleeved on the outer periphery of the second shaft (162), and a third heat dissipation gap (105) communicated with the second gap (102) is formed between the upper bearing (163) and the outer periphery of the second shaft (162);
the lower bearing (164) is sleeved on the outer periphery of the first shaft (161), and a fourth heat dissipation gap (106) communicated with the first gap (101) is formed between the lower bearing (164) and the outer periphery of the first shaft (161).
3. The anti-rotation mechanism (100) for a scroll compressor according to claim 2, wherein the free end of the first shaft (161) and the free end of the second shaft (162) decrease in diameter in directions away from each other.
4. The anti-rotation mechanism (100) for a scroll compressor according to claim 1, wherein the upper bearing (163) comprises:
the first inner ring is sleeved on the periphery of the second shaft (162);
the first outer ring is arranged on the periphery of the first inner ring, and is matched with the vortex movable disk;
the lower bearing (164) includes:
the second inner ring is sleeved on the periphery of the first shaft (161);
the second outer ring is arranged on the periphery of the second inner ring, and the second outer ring is matched with the frame.
5. The anti-rotation mechanism (100) for a scroll compressor according to claim 4, wherein the upper bearing (163) is configured as a plurality of sleeves that are sleeved on the second shaft (162) and are arranged in sequence in an axial direction; the lower bearing (164) is configured to be fitted over the first shaft (161) and is arranged in series in the axial direction.
6. The anti-rotation mechanism (100) for a scroll compressor of claim 5, wherein at least one of said first inner race and said second shaft (162) are constructed as an integral piece and at least one of said second inner race and said first shaft (161) are constructed as an integral piece.
7. The anti-rotation mechanism (100) for a scroll compressor according to claim 1, wherein the scroll includes:
a movable disk body (13), wherein the movable disk body (13) is provided with the second installation space which is opened towards one end;
the first fastening cover (14), the first fastening cover (14) is fixed with the movable disc body (13) and seals the second installation space, and the first fastening cover (14) is abutted against the end face of the upper bearing (163).
8. The anti-rotation mechanism (100) for a scroll compressor according to claim 1, wherein the frame comprises:
a frame body (12), wherein the frame body (12) is internally provided with the first installation space which is open towards one end;
the rear cover (15), the rear cover (15) set up in on the frame body (12) and seal first installation space, rear cover (15) with be formed with between first axle (161) first clearance (101), rear cover (15) with the tip of lower bearing (164) is held and is held.
9. The anti-rotation mechanism (100) for a scroll compressor according to claim 8, wherein a groove recessed toward away from the first shaft (161) is formed in the rear cover (15) plate, and the first gap (101) is formed in the groove.
10. A scroll compressor comprising the anti-rotation mechanism (100) of any one of claims 1-9.
CN202311151575.9A 2023-09-06 2023-09-06 Anti-rotation mechanism for scroll compressor and scroll compressor Pending CN117006045A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311151575.9A CN117006045A (en) 2023-09-06 2023-09-06 Anti-rotation mechanism for scroll compressor and scroll compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311151575.9A CN117006045A (en) 2023-09-06 2023-09-06 Anti-rotation mechanism for scroll compressor and scroll compressor

Publications (1)

Publication Number Publication Date
CN117006045A true CN117006045A (en) 2023-11-07

Family

ID=88576452

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311151575.9A Pending CN117006045A (en) 2023-09-06 2023-09-06 Anti-rotation mechanism for scroll compressor and scroll compressor

Country Status (1)

Country Link
CN (1) CN117006045A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117646723A (en) * 2024-01-29 2024-03-05 蜂巢蔚领动力科技(江苏)有限公司 Anti-rotation structure of scroll compressor and scroll compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117646723A (en) * 2024-01-29 2024-03-05 蜂巢蔚领动力科技(江苏)有限公司 Anti-rotation structure of scroll compressor and scroll compressor
CN117646723B (en) * 2024-01-29 2024-04-26 蜂巢蔚领动力科技(江苏)有限公司 Anti-rotation structure of scroll compressor and scroll compressor

Similar Documents

Publication Publication Date Title
US10859113B2 (en) Bearing arrangement for fluid machinery application
KR840000024B1 (en) Bearing assembly for high speed shaft
CN102016325B (en) Bearing device for supercharger
KR102556910B1 (en) Vented bearing retainer for turbomachinery
US8845282B2 (en) Seal plate with cooling passage
EP1618308B1 (en) Vacuum pump
US20090028731A1 (en) Ball bearing and a vacuum pump that is equipped with a bearing of this type
KR20130138170A (en) Scroll fluid machine
KR20050029227A (en) Ball bearing
CN117006045A (en) Anti-rotation mechanism for scroll compressor and scroll compressor
CN203743212U (en) Angular contact ball bearing and combined bearing
EP3938668B1 (en) Foil bearing assembly and compressor including same
US4756673A (en) Turbocharger
US20110236193A1 (en) Turbocharger bearing lubrication
US20070292263A1 (en) Output shaft air/oil separator to redundantly protect against output shaft o-ring leakage
US4116502A (en) Dual bearing structure for rotatable machine parts with antifriction and plain bearings
WO2019135326A1 (en) Turbocharger
JP2007071356A (en) Turbocharger rotation supporting device
WO1999049246A1 (en) Fluid ring seal system and method
JP4004115B2 (en) Supercharger and supercharger assembly method
JP2011106493A (en) Rolling bearing device
EP3875190A1 (en) Spindle device having built-in motor
JP2005106108A (en) Rolling bearing unit
WO2016199818A1 (en) Bearing unit
JP2020069604A (en) Motor built-in type spindle device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination