WO2008035690A1 - Élément empêchant la rotation et compresseur à spirale - Google Patents

Élément empêchant la rotation et compresseur à spirale Download PDF

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Publication number
WO2008035690A1
WO2008035690A1 PCT/JP2007/068124 JP2007068124W WO2008035690A1 WO 2008035690 A1 WO2008035690 A1 WO 2008035690A1 JP 2007068124 W JP2007068124 W JP 2007068124W WO 2008035690 A1 WO2008035690 A1 WO 2008035690A1
Authority
WO
WIPO (PCT)
Prior art keywords
key
scroll
groove
movable scroll
plate
Prior art date
Application number
PCT/JP2007/068124
Other languages
English (en)
Japanese (ja)
Inventor
Hideyuki Nakajima
Original Assignee
Daikin Industries, 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 Daikin Industries, Ltd. filed Critical Daikin Industries, Ltd.
Priority to CN200780034236.5A priority Critical patent/CN101517237B/zh
Priority to US12/441,517 priority patent/US8241022B2/en
Publication of WO2008035690A1 publication Critical patent/WO2008035690A1/fr

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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
    • F04C18/0215—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 where only one member is moving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C17/00—Arrangements for drive of co-operating members, e.g. for rotary piston and casing
    • F01C17/06—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements
    • F01C17/066—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements with an intermediate piece sliding along perpendicular axes, e.g. Oldham coupling

Definitions

  • the present invention relates to a scroll compressor and a rotation prevention member that prevents rotation of a movable scroll component.
  • Patent Document 1 JP-A-58-57002
  • some refrigeration apparatuses for refrigerated containers and refrigerated containers are equipped with a scroll compressor.
  • a scroll compressor is oriented vertically during storage and transportation of the container, that is, so that the crankshaft is along the vertical direction and the movable scroll is arranged on the electric motor. Often installed! /.
  • the refrigerant may repeatedly evaporate and condense in the scroll compressor due to a change in the outside air temperature.
  • An object of the present invention is to increase the lifetime of the surface coating applied to the wall forming the keyway of the movable scroll.
  • Another problem of the present invention is that, even when the surface coating of the movable scroll is completely lost, the key portion of the rotation preventing member and the wall forming the key groove when the scroll compressor is started up It is to prevent seizure and abnormal wear from occurring.
  • a rotation preventing member includes an annular main body, a pair of first key portions, and a pair of second key portions.
  • the first key portion is opposed to the main body shaft and extends to one side along the axial direction of the main body.
  • the first key portion has a pair of first surfaces including an axial direction and a radial direction of the main body.
  • the second key portion is parallel to the first surface and is opposed to the virtual surface including the shaft, and extends to the same side as the first key portion or the opposite side of the first key portion along the axial direction.
  • the second key portion has a pair of third surfaces orthogonal to the first surface and including the axial direction. At least the first key portion of the first key portion and the second key portion is provided with a recess that opens to the end surface on the side where the key portion extends.
  • At least the first key portion of the first key portion and the second key portion is provided with a recess that opens to the end surface on the side where the key portion extends. For this reason, in this rotation prevention member, the lubricating oil can be stored in the recess for a certain period. For this reason, when this anti-rotation member is employed in a scroll compressor, even when the coating portion of the movable scroll is completely lost, the key portion of the anti-rotation member key portion is activated when the scroll compressor is started. Force S to prevent seizure and abnormal wear between the 1st and 3rd surfaces and the wall forming the keyway. In such a case, it is more effective if low speed operation or inching operation is performed when the scroll compressor is started.
  • An anti-rotation member according to a second aspect of the present invention is the anti-rotation member according to the first aspect of the present invention, wherein the first key portion further includes a pair of second surfaces orthogonal to the radial direction of the main body.
  • the second key portion further includes a pair of fourth surfaces that are parallel to the first surface. At least the first corner of the first corner formed from the first surface and the second surface and the second corner formed from the third surface and the fourth surface are chamfered.
  • the rotation preventing member according to the third invention is the rotation preventing member according to the second invention, wherein the ratio of the chamfering length to the radial length on the first surface is 0.005 or more. It is as follows. When this ratio is less than 0.005, the effects of the present invention cannot be fully enjoyed. On the other hand, if this ratio is greater than 0.06, the sliding surface becomes smaller, which increases the contact pressure and increases the probability of seizing or abnormal wear.
  • the ratio of the chamfering length to the radial length of the first surface is not less than 0.05 and not more than 0.06. For this reason, with this rotation prevention member, it is possible to suppress the scraping of the coating portion of the movable scroll by the first key portion while substantially maintaining the surface pressure of the first surface against the wall forming the key groove of the movable scroll. .
  • a rotation preventing member according to a fourth invention is the rotation preventing member according to the second or third invention, and the second key portion extends along the axial direction to the same side as the first key portion.
  • the first corner and the second corner are chamfered.
  • the second key portion extends on the same side as the first key portion along the axial direction. Both corners of the first corner and the second corner are chamfered. For this reason, if either the first key part or the second key part is fitted in the keyway of the movable scroll, the anti-rotation member will be applied to the wall that forms the keyway of the movable scroll. Can be made longer than before. On the other hand, the remaining key portions are fitted into key grooves formed in a fixed scroll or the like. In other words, this anti-rotation member has a coating on the wall forming the key groove of the fixed scroll as well as the life of the coating formed on the wall forming the key groove of the movable scroll. In some cases, the life of the coated part can be made longer than before.
  • a rotation preventing member according to a fifth invention is the rotation preventing member according to the second or third invention, and the second key portion extends to the opposite side of the first key portion along the axial direction.
  • the second key portion extends to the opposite side of the first key portion along the axial direction. For this reason, if the first key portion is fitted in the key groove of the movable scroll, the rotation preventing member extends the life of the coating portion provided on the wall forming the key groove of the movable scroll. I can do it. On the other hand, since the second key portion faces vertically downward, even if the refrigerated container or refrigerated container is not used for a long time, the second key portion In the vicinity, the lubricating oil will dry out.
  • a scroll compressor includes a movable scroll, a component, and a rotation prevention member.
  • the movable scroll has a first plate part, a first spiral part, a pair of first grooves and a coating part.
  • the first spiral part extends from the first plate surface of the first plate part in a direction perpendicular to the first plate surface while maintaining the spiral shape.
  • the first groove is formed in a straight line on the first plate portion along the radial direction of the first spiral portion.
  • the coating portion covers the wall that forms the first groove.
  • the component has a second groove. And this component is arrange
  • the rotation preventing member has an annular main body, a pair of first key portions, and a pair of second key portions.
  • the first key portion extends toward the movable scroll along the axial direction of the main body.
  • the first key portion is inserted into the first groove.
  • the second key portion extends to the component side along the axial direction.
  • the second key portion is inserted into the second groove.
  • at least the first key portion of the first key portion and the second key portion is provided with a recess that opens to the end surface on the side where the key portion extends.
  • at least the first key portion of the first key portion and the second key portion is provided with a recess that opens to the end surface on the side where the key portion extends.
  • this scroll compressor it is possible to store the lubricating oil in the depression of the key portion of the rotation preventing member for a certain period. For this reason, in this scroll compressor, even when the coating part of the movable scroll is completely lost, the sliding surface of the key part of the rotation preventing member and the wall forming the key groove at the time of startup It is possible to prevent seizure and abnormal wear from occurring. In such a case, it is more effective to operate at low speed or inching at startup.
  • a scroll compressor according to a seventh aspect of the invention is the scroll compressor according to the sixth aspect of the invention, wherein the component part is a housing disposed on the opposite side of the spiral part of the movable scroll.
  • the housing is arranged on the opposite side of the scroll of the movable scroll.
  • the component is a housing arranged on the opposite side of the spiral part of the movable scroll.
  • the life of the coating portion applied to the wall forming the first groove of the movable scroll is prolonged. It can be made longer than before.
  • the second key part faces vertically downward, refrigerated containers and refrigerated containers are used for a long time. Even if it is not possible, the lubricating oil will drain around the second key part.
  • a scroll compressor according to an eighth aspect of the present invention is the scroll compressor according to the sixth aspect of the present invention, wherein the component is a fixed scroll.
  • the fixed scroll has an eleventh plate part, a second spiral part, an enclosure wall part and a coating part.
  • the second spiral portion extends while maintaining a spiral shape in a direction perpendicular to the eleventh plate surface from the eleventh plate surface of the eleventh plate portion.
  • the second spiral portion is entangled with the first spiral portion.
  • the surrounding wall portion is formed so as to surround the eleventh spiral portion in a direction perpendicular to the eleventh plate surface from the eleventh plate surface of the eleventh plate portion.
  • the coating portion covers the wall that forms the second groove.
  • the second groove is formed on the end surface of the surrounding wall portion on the side opposite to the eleventh plate portion side.
  • the first key portion and the second key portion are provided with a recess that opens to the end surface on the side where the key portion extends.
  • the component is a fixed scroll.
  • the first key portion and the second key portion are provided with a recess that opens to the end surface on the side where the key portion extends.
  • lubricating oil can be stored in the recess of the key part of the rotation preventing member for a certain period.
  • the sliding surface of the key portion of the anti-rotation member at the time of startup It is possible to prevent seizure and abnormal wear with the wall forming the keyway. In such a case, it is more effective if low speed operation or inching operation is performed at startup.
  • a scroll compressor according to a ninth aspect of the invention is the scroll compressor according to the sixth aspect of the invention, and the component part is a fixed scroll.
  • the fixed scroll has an eleventh plate portion, a second spiral portion, an enclosure wall portion, a flange portion, and a coating portion.
  • the second spiral portion extends from the eleventh plate surface of the eleventh plate portion in a direction perpendicular to the eleventh plate surface while maintaining the spiral shape.
  • this 2nd spiral part is entangled with the 1st spiral part.
  • the surrounding wall portion is formed so as to surround the eleventh spiral portion in a direction perpendicular to the eleventh plate surface from the eleventh plate surface of the eleventh plate portion.
  • the brim portion extends along the radial direction of the spiral portion from the outer periphery of the end portion of the surrounding wall opposite to the eleventh plate portion side.
  • the coating portion covers the wall that forms the second groove.
  • the second groove is formed on the opposite end surface of the eleventh plate portion side of the surrounding wall portion and on at least the flange portion of the flange portion.
  • the first key portion and the second key portion are provided with a recess that opens to the end surface on the side where the key portion extends.
  • the component is a fixed scroll.
  • the first key portion and the second key portion are provided with a recess that opens to the end surface on the side where the key portion extends.
  • a scroll compressor includes a movable scroll, a component, and a rotation prevention member.
  • the movable scroll has a first plate part, a first spiral part, a pair of first grooves, a cylindrical part, and a first through hole.
  • the first spiral part extends from the first plate surface of the first plate part in a direction perpendicular to the first plate surface while maintaining the spiral shape.
  • the first groove is formed in a straight line on the first plate portion along the radial direction of the first spiral portion.
  • the cylindrical portion extends from the second plate surface, which is the plate surface on the back side of the first plate surface, in a direction perpendicular to the second plate surface.
  • the first through hole extends from a portion of the first plate portion surrounded by the cylindrical portion or the cylindrical portion and communicates with the first groove.
  • the component has a second groove. And this component is arrange
  • the rotation preventing member has an annular main body, a pair of first key portions, and a pair of second key portions.
  • the first key portion extends toward the movable scroll along the axial direction of the main body.
  • the first key portion is inserted into the first groove.
  • the second key portion extends to the component side along the axial direction.
  • the second key portion is inserted into the second groove. At least the first key portion of the first key portion and the second key portion is provided with a recess that opens to the end surface on the side where the key portion extends.
  • the first through hole extends from the portion of the first plate portion surrounded by the cylindrical portion or the cylindrical portion and communicates with the first groove. Therefore, in this scroll compressor, a part of the lubricating oil supplied to the cylindrical portion (bearing) through the crankshaft is supplied to the first groove of the movable scroll part, that is, the key groove in the shortest time. For this reason, in this scroll compressor, even if the coating part of the movable scroll is completely lost! /, It is between the key part of the rotation preventing member and the wall forming the key groove at the time of startup. It can be used to prevent seizure and abnormal wear.
  • a scroll compressor according to an eleventh aspect of the invention is the scroll compressor according to the tenth aspect of the invention, wherein the movable scroll further includes a flow rate adjusting member.
  • the flow rate adjusting member has a second through hole. The second through hole communicates the first through hole and the first groove. The flow rate adjusting member is fitted into the first groove side portion of the first through hole.
  • the movable scroll has a second through hole that communicates the flow rate adjusting member with the first through hole and the first groove, and is fitted into the first groove side portion of the first through hole. . For this reason, in this scroll compressor, the amount of lubricating oil supplied to the keyway is appropriately maintained only by performing simple processing on the movable scroll.
  • a rotation preventing member includes an annular main body, a pair of first key portions, and a pair of second key portions.
  • the first key portion is opposed to the main body shaft and extends to one side along the axial direction of the main body.
  • this 1st key part has a pair of 1st surface orthogonal to the radial direction of a main body, and a pair of 2nd surface containing an axial direction and a radial direction.
  • the second key portion is parallel to the second surface and faces the virtual surface including the shaft, and extends along the axial direction on the same side as the first key portion or on the opposite side of the first key portion.
  • the second key portion has a pair of third surfaces parallel to the second surface and a pair of fourth surfaces parallel to the first surface. Then, at least the first corner of the first corner formed by the first surface and the second surface and the second corner formed by the third surface and the fourth surface are chamfered.
  • this anti-rotation member reduces the risk of scraping off the coating portion applied to the wall that forms the key groove of the movable scroll. Can do. Therefore, this anti-rotation member can increase the life S of the coating portion applied to the wall that forms the keyway of the movable scroll as compared with the conventional one.
  • a rotation preventing member according to a thirteenth aspect of the present invention is the rotation preventing member according to the twelfth aspect of the present invention, wherein the second key portion extends to the opposite side of the first key portion along the axial direction.
  • the second key portion extends to the opposite side of the first key portion along the axial direction. For this reason, if the first key part is fitted in the keyway of the movable scroll, the anti-rotation member is used for the life of the coating part provided on the wall forming the keyway of the movable scroll. Can be made longer than before. On the other hand, since the second key portion is directed vertically downward, the lubricating oil is drained around the second key portion even when the refrigerated container or the refrigerated container is not used for a long time.
  • a rotation preventing member according to a fourteenth aspect of the present invention is the rotation preventing member according to the twelfth aspect of the present invention, wherein the second key portion extends along the axial direction to the same side as the first key portion.
  • the first corner and the second corner are chamfered.
  • the second key portion extends on the same side as the first key portion along the axial direction. Both corners of the first corner and the second corner are chamfered. For this reason, if either the first key part or the second key part is fitted in the keyway of the movable scroll, the anti-rotation member will be applied to the wall that forms the keyway of the movable scroll. Can be made longer than before. On the other hand, the remaining key portions are fitted into key grooves formed in a fixed scroll or the like. In other words, this anti-rotation member has a coating on the wall forming the key groove of the fixed scroll as well as the life of the coating formed on the wall forming the key groove of the movable scroll. In some cases, the life of the coated part can be made longer than before.
  • a rotation preventing member according to a fifteenth aspect of the present invention is the rotation preventing member according to any of the twelfth to fourteenth aspects of the present invention, wherein the ratio of the chamfering length to the radial direction length on the second surface is: 0.005 or more and 0.06 or less. If this ratio is less than 0.005, the effects of the present invention cannot be fully enjoyed. On the other hand, when this ratio is larger than 0.06, there is a disadvantage that the sliding surface becomes smaller and the surface pressure becomes larger and the probability of seizing or abnormal wear increases.
  • the ratio of the chamfering length to the radial length of the second surface is not less than 0.05 and not more than 0.06. For this reason, with this anti-rotation member, it is possible to suppress scraping of the coating portion of the movable scroll by the first key portion while substantially maintaining the surface pressure of the second surface against the wall forming the key groove of the movable scroll. .
  • a scroll compressor includes a movable scroll, a component, and a rotation prevention member.
  • the movable scroll has a first plate part, a first spiral part, a pair of first grooves, and a film part.
  • the first spiral portion faces from the first plate surface of the first plate portion in a direction perpendicular to the first plate surface. It extends while maintaining the spiral shape.
  • the first groove is formed in a straight line on the first plate portion along the radial direction of the first spiral portion.
  • the coating portion covers the wall that forms the first groove.
  • the component parts are arranged in the vicinity of the movable scroll.
  • the component also has a second groove.
  • the rotation preventing member has an annular main body, a pair of first key portions, and a pair of second key portions.
  • the first key portion extends toward the movable scroll along the axial direction of the main body.
  • the first part is inserted into the first groove.
  • the second key portion extends to the component side along the axial direction.
  • the second key portion is inserted into the second groove.
  • At least the first key portion of the first key portion and the second key portion is chamfered at the corner portion formed by the sliding surface with respect to the wall forming the groove and the pair of fifth surfaces orthogonal to the sliding direction. ing.
  • At least the first key portion of the first key portion and the second key portion is formed of a sliding surface with respect to the wall forming the groove and a pair of fifth surfaces orthogonal to the sliding direction.
  • the corners are chamfered.
  • a scroll compressor according to a seventeenth aspect of the present invention is the scroll compressor according to the sixteenth aspect of the present invention, wherein the component is a housing disposed on the opposite side of the spiral portion of the movable scroll.
  • the component is a housing arranged on the opposite side of the spiral part of the movable scroll.
  • a scroll compressor according to an eighteenth aspect of the invention is the scroll compressor according to the sixteenth aspect of the invention, wherein the component part is a fixed scroll and further has a coating part.
  • the fixed scroll has an eleventh plate part, a second spiral part, and an enclosure wall part.
  • the second spiral portion extends from the eleventh plate surface of the eleventh plate portion in a direction perpendicular to the eleventh plate surface while maintaining the spiral shape.
  • the second spiral portion is entangled with the first spiral portion.
  • the surrounding wall portion is formed so as to surround the eleventh spiral portion in a direction perpendicular to the eleventh plate surface from the eleventh plate surface of the eleventh plate portion.
  • the coating portion covers the wall that forms the second groove.
  • the second groove is formed on the end surface of the surrounding wall portion opposite to the eleventh plate portion side.
  • corner portions formed by a sliding surface with respect to the wall forming the groove and a pair of fifth surfaces orthogonal to the sliding direction are chamfered.
  • the component is a fixed scroll.
  • corner portions formed by a sliding surface with respect to the wall forming the groove and a pair of fifth surfaces orthogonal to the sliding direction are chamfered. Therefore, in this scroll compressor, if either the first key portion or the second key portion is fitted in the first groove of the movable scroll, it is applied to the wall forming the first groove of the movable scroll. The life of the coating can be made longer than before. On the other hand, the remaining key portions are fitted into the second grooves formed in the fixed scroll or the like.
  • the life of the scroll compressor according to the nineteenth aspect of the invention is the scroll compressor according to the sixteenth aspect of the invention, and the component is a fixed scroll and further includes a coating portion.
  • the fixed scroll has an eleventh plate part, a second spiral part, an enclosure wall part, and a brim part.
  • the second spiral portion extends from the eleventh plate surface of the eleventh plate portion in a direction perpendicular to the eleventh plate surface while maintaining the spiral shape.
  • the second spiral portion is entangled with the first spiral portion.
  • the enclosure wall portion is formed so as to surround the eleventh spiral portion in a direction perpendicular to the eleventh plate surface from the eleventh plate surface of the eleventh plate portion.
  • the collar portion extends along the radial direction of the spiral portion from the outer periphery of the end portion of the surrounding wall opposite to the eleventh plate portion side.
  • the coating portion covers the wall that forms the second groove.
  • the second groove is formed in at least the flange portion of the flange portion and the end surface of the surrounding wall portion on the side opposite to the eleventh plate portion side.
  • corner portions formed by a sliding surface with respect to the wall forming the groove and a pair of fifth surfaces orthogonal to the sliding direction are chamfered.
  • the component is a fixed scroll.
  • the first key part In the second key portion a corner portion formed by a sliding surface with respect to the wall forming the groove and a pair of fifth surfaces orthogonal to the sliding direction is chamfered. Therefore, in this scroll compressor, if either the first key portion or the second key portion is fitted in the first groove of the movable scroll, it is applied to the wall forming the first groove of the movable scroll. The life of the coating can be made longer than before.
  • the remaining key portions are fitted into the second grooves formed in the fixed scroll or the like. In other words, in this scroll compressor, not only the life of the coating portion provided on the wall forming the first groove of the movable scroll but also the coating portion provided on the wall forming the second groove of the fixed scroll. Life can be longer than before
  • a movable scroll component includes a first plate portion, a first spiral portion, a pair of first grooves, a cylindrical portion, and a first through hole.
  • the first spiral part extends from the first plate surface of the first plate part in a direction perpendicular to the first plate surface while maintaining the spiral shape.
  • the first groove is formed in a straight line on the first plate portion along the radial direction of the first spiral portion.
  • the cylindrical portion extends from the second plate surface, which is the plate surface on the back side of the first plate surface, in a direction perpendicular to the second plate surface.
  • the first through-hole extends from a portion of the first plate portion surrounded by the cylindrical portion or the cylindrical portion and communicates with the first groove.
  • “Cylindrical part” is a bearing or the like.
  • the first through hole extends from the portion of the first plate portion surrounded by the cylindrical portion or from the cylindrical portion and communicates with the first groove.
  • a movable scroll component according to a twenty-first invention is the movable scroll component according to the twentieth invention, further comprising a flow rate adjusting member.
  • the flow rate adjusting member has a second through hole that communicates the first through hole and the first groove.
  • the flow rate adjusting member is fitted into the first through hole on the first groove side. Note that the diameter of the second through hole is smaller than the diameter of the first through hole. It is.
  • the flow rate adjusting member may be screw-type fixed or press-fitted and fixed.
  • the flow rate adjusting member has a second through hole that allows the first through hole and the first groove to communicate with each other, and is fitted into a portion of the first through hole on the first groove side. For this reason, in this movable scroll part, the supply amount of the lubricating oil to the keyway is appropriately maintained only by simple processing.
  • this rotation prevention member reduces the possibility of scraping off the coating part applied to the wall forming the key groove of the movable scroll. Can do. Therefore, this anti-spinning member can reduce the life of the coating portion applied to the wall forming the keyway of the movable scroll with a force S longer than before.
  • the first key portion removes the coating portion of the movable scroll while maintaining substantially the surface pressure of the first surface against the wall forming the key groove of the movable scroll. Use the power S to control.
  • the second key portion extends on the same side as the first key portion along the axial direction. Both corners of the first corner and the second corner are chamfered. For this reason, if either the first key part or the second key part is fitted in the keyway of the movable scroll, the anti-rotation member is applied to the wall that forms the keyway of the movable scroll. Can be made longer than before. On the other hand, the remaining key portions are fitted into key grooves formed in a fixed scroll or the like.
  • this anti-spinning material is used not only for the life of the coating part provided on the wall forming the keyway of the movable scroll but also when the coating part is provided on the wall forming the keyway of the fixed scroll or the like. Is its cover The lifetime of the film part can also be made longer than before.
  • the second key portion extends to the opposite side of the first key portion along the axial direction. For this reason, if the first key portion is fitted in the key groove of the movable scroll, this anti-rotation member makes the life of the coating portion provided on the wall forming the key groove of the movable scroll longer than before. Can do. On the other hand, since the second key part is directed vertically downward, the lubricating oil is less likely to dry around the second key part even when the refrigerated container or refrigerated container is not used for a long period of time.
  • the lubricating oil can be stored in the depression of the key portion of the rotation preventing member for a certain period. For this reason, in this scroll compressor, even when the coating part of the movable scroll is completely lost, the sliding surface of the key part of the rotation preventing member at the time of activation, the wall forming the key groove, S to prevent seizure or abnormal wear between In such a case, it is more effective if low speed operation or inching operation is performed at startup.
  • the scroll compressor according to the seventh aspect of the invention if the first key portion of the rotation preventing member is fitted in the first groove of the movable scroll, it is applied to the wall forming the first groove of the movable scroll.
  • the life of the coating can be made longer than before.
  • the second key portion faces vertically downward, even when the refrigerated container or the refrigerated container is not used for a long period of time, the lubricating oil is exhausted around the second key portion.
  • the lubricating oil can be stored in the depression of the key portion of the rotation preventing member for a certain period. For this reason, this scroll compressor forms the sliding surface of the key part of the anti-rotation member and the key groove at the start-up even when the coating part of the movable scroll or the fixed scroll is completely lost. It is possible to prevent seizure or abnormal wear from occurring on the wall. In such a case, it is more effective if low speed operation or inching operation is performed at startup.
  • the lubricating oil can be stored in the depression of the key portion of the rotation preventing member for a certain period. For this reason, this scroll compressor forms the sliding surface of the key part of the anti-rotation member and the key groove at the start-up even when the coating part of the movable scroll or the fixed scroll is completely lost. Seizure or abnormalities between the walls Force S to prevent wear. In such a case, it is more effective if low speed operation or inching operation is performed at startup.
  • a part of the lubricating oil supplied to the cylindrical portion (bearing) through the crankshaft is supplied to the first groove of the movable scroll part, that is, the key groove in the shortest time. .
  • seizure or seizure occurs between the key part of the rotation preventing member and the wall forming the key groove at the time of startup. Abnormal wear can be prevented from occurring.
  • the supply amount of the lubricating oil to the keyway is appropriately maintained only by performing simple processing on the movable scroll.
  • the anti-rotation member according to the twelfth aspect of the invention reduces the risk of scraping off the coating applied to the wall forming the keyway of the movable scroll if the first key part is fitted into the keyway of the movable scroll. can do. Therefore, this anti-rotation member can extend the life of the coating portion applied to the wall that forms the keyway of the movable scroll as compared with the conventional one. If fitted in the keyway of the orbiting scroll, it is possible to increase the service life of the coating on the wall forming the keyway of the orbiting scroll. On the other hand, since the second key part is directed vertically downward, the lubricating oil is depleted around the second key part even when the refrigerated container or the refrigerated container is not used for a long time.
  • the anti-spinning member according to the fourteenth aspect of the present invention is provided on the wall that forms the key groove of the movable scroll if the!
  • the life of the coated part can be made longer than before.
  • the remaining key portions are fitted into key grooves formed in a fixed scroll or the like.
  • this anti-rotation member is used not only for the life of the coating part provided on the wall forming the keyway of the movable scroll but also when the coating part is provided on the wall forming the keyway of the fixed scroll or the like.
  • the life of the coating can be made longer than before.
  • the surface of the coating portion of the movable scroll by the first key portion is maintained while substantially maintaining the surface pressure of the second surface against the wall forming the keyway of the movable scroll. Use the power S to control the scraping.
  • the scroll compressor according to the sixteenth aspect of the invention it is possible to reduce the risk of scraping off the coating portion applied to the wall forming the keyway of the rotation preventing member and the movable scroll. Therefore, in this scroll compressor, the life of the coating portion applied to the wall forming the keyway of the movable scroll can be made longer than before.
  • the coating portion applied to the wall forming the first groove of the movable scroll can be made longer than before.
  • the second key portion is directed vertically downward, the lubricating oil is less likely to dry around the second key portion even when the refrigerated container or refrigerated container is not used for a long time.
  • the scroll compressor according to the eighteenth aspect of the invention if either the first key portion or the second key portion is fitted in the first groove of the movable scroll, it is applied to the wall that forms the first groove of the movable scroll.
  • the life of the coating can be made longer than before.
  • the remaining key part is fitted into the second groove formed in the fixed scroll or the like.
  • the scroll compressor according to the nineteenth invention, if either the first key portion or the second key portion is fitted in the first groove of the movable scroll, the scroll compressor is applied to the wall forming the first groove of the movable scroll.
  • the life of the coated film can be made longer than before.
  • the remaining key part is fitted into the second groove formed in the fixed scroll or the like.
  • this scroll compressor not only the life of the coating film forming the first groove of the movable scroll but also the coating film coating applied to the wall forming the second groove of the fixed scroll. It is possible to increase the lifespan of the past.
  • the first through hole extends from a portion of the first plate portion surrounded by the cylindrical portion or the cylindrical portion and communicates with the first groove.
  • the amount of lubricating oil supplied to the keyway is properly maintained.
  • FIG. 1 is a longitudinal sectional view of a scroll compressor according to a first embodiment of the present invention.
  • FIG. 2 is a perspective view of an Oldham ring according to the first embodiment of the present invention.
  • FIG. 3 is a top view of the Oldham ring according to the first embodiment of the present invention.
  • FIG. 4 is a bottom view of the Oldham ring according to the first embodiment of the present invention.
  • FIG. 5 is a side view of the Oldham ring according to the first embodiment of the present invention when viewed along the arrangement direction of the movable scroll side key portions.
  • FIG. 6 is a side view of the Oldham ring according to the first embodiment of the present invention as viewed along the arrangement direction of the housing-side key portions.
  • FIG. 7 is a top view of an Oldham ring according to Modification (G) of the first embodiment of the present invention.
  • FIG. 8 is a side view of the Oldham ring according to the modification (G) of the first embodiment of the present invention as viewed along the arrangement direction of the key portions on the fixed scroll side.
  • FIG. 9 is a bottom view of a fixed scroll according to Modification (G) of the first embodiment of the present invention.
  • FIG. 10 is a bottom view of a fixed scroll according to a modification (G) of the first embodiment of the present invention.
  • FIG. 11 is a bottom view of a fixed scroll according to Modification (G) of the first embodiment of the present invention.
  • FIG. 12 is a perspective view of an Oldham ring according to modification (H) of the first embodiment of the present invention.
  • FIG. 13 is a top view of an Oldham ring according to Modification (H) of the first embodiment of the present invention.
  • FIG. 14 is a perspective view of an Oldham ring according to a second embodiment of the present invention.
  • FIG. 15 is a top view of an Oldham ring according to a second embodiment of the present invention.
  • FIG. 16 is a bottom view of an Oldham ring according to a second embodiment of the present invention.
  • FIG. 17 is a side view of the Oldham ring according to the second embodiment of the present invention as viewed along the arrangement direction of the movable scroll side key portions.
  • 18] A side view of the Oldham ring according to the second embodiment of the present invention as viewed along the arrangement direction of the housing-side key portions.
  • FIG. 19 is a top view of a movable scroll according to a third embodiment of the present invention.
  • FIG. 20 is a cross-sectional view taken along the line AA of the movable scroll according to the third embodiment of the present invention.
  • FIG. 21 A partial longitudinal sectional view of a scroll compressor in which a movable scroll according to a third embodiment of the present invention is incorporated.
  • the low-pressure dome type scroll compressor 1 constitutes a refrigerant circuit together with an evaporator, a condenser, an expansion mechanism, and the like, and plays a role of compressing a gas refrigerant in the refrigerant circuit.
  • Fig. 1 it is mainly composed of a vertically long cylindrical sealed dome-shaped casing 10, a scroll compression pump unit 15, a drive motor 16, a lower main bearing 60, a suction pipe 19, and a discharge pipe 20.
  • the low-pressure dome type scroll compressor 1 is a vertically installed compressor, and is installed such that the scroll compression pump unit 15 is located above the drive motor 16. The components of the low-pressure dome type scroll compressor 1 are described in detail below.
  • the casing 10 mainly includes a substantially cylindrical body casing portion 11, a bowl-shaped upper wall portion 12 that is airtightly welded to an upper end portion of the body casing portion 11, and a lower end portion of the body casing portion 11. And a bowl-shaped bottom wall portion 13 which is welded in an airtight manner.
  • the casing 10 mainly accommodates a scroll compression pump unit 15 that compresses a gas refrigerant and a drive motor 16 that is disposed below the scroll compression pump unit 15.
  • the scroll compression pump unit 15 and the drive motor 16 are connected by a crankshaft 17 arranged so as to extend in the vertical direction in the casing 10.
  • the scroll compression pump unit 15 mainly includes a housing 23, a fixed scroll 24 disposed in close contact with the housing 23, a movable scroll 26 meshed with the fixed scroll 24, and a movable The Oldham ring 39 prevents the scroll 26 from rotating.
  • the components of the scroll compression pump unit 15 will be described in detail below.
  • the housing 23 is press-fitted and fixed to the trunk casing portion 11. And this howe The fixed scroll 24 is fastened and fixed to the ring 23 with bolts (not shown) so that the upper end surface is in close contact with the lower end surface of the fixed scroll 24. Further, the housing 23 is formed with a housing recess 31 that is recessed at the center of the upper surface, and a bearing portion 32 that extends downward from the center of the lower surface. The bearing portion 32 is formed with a bearing hole penetrating in the vertical direction, and the crankshaft 17 is rotatably fitted in the bearing hole.
  • the fixed scroll 24 is mainly composed of an end plate 24a and a spiral (impolete) wrap 24b formed on the lower surface of the end plate 24a.
  • a discharge passage (not shown) communicating with the compression chamber 40 (described later) is formed in the end plate 24a.
  • the discharge passage is formed in the central portion of the end plate 24a so as to extend vertically!
  • the movable scroll 26 is mainly formed on an end plate 26a, a spiral (impolete) wrap 26b formed on the upper surface side of the end plate 26a, and a lower surface side of the end plate 26a. And a key groove 26d formed at both ends of the end plate 26a.
  • the movable scroll 26 is subjected to a rubrite process on the entire surface.
  • the movable scroll 26 is supported by the housing 23 by fitting an Oldham ring 39 (described later) into the keyway 26d. Further, the upper end of the crankshaft 17 is fitted into the bearing portion 26c.
  • the movable scroll 26 revolves in the housing 23 without being rotated by the rotation of the crankshaft 17 by being incorporated in the scroll compression pump unit 15 in this way.
  • the wrap 26b of the movable scroll 26 is engaged with the wrap 24b of the fixed scroll 24, and a compression chamber 40 is formed between the contact portions of both the wraps 24b and 26b.
  • the compression chamber 40 as the movable scroll 26 revolves, the volume between the wraps 24b and 26b contracts toward the center. In this way, the low-pressure dome type scroll compressor 1 according to the present embodiment compresses the gas refrigerant.
  • the Oldham ring 39 is a member for preventing the rotation of the movable scroll 26.
  • the Oldham ring 39 mainly includes a main body 39c, a movable scroll side key portion 39a, and a housing side key portion 39b. It is composed of Body 39c is shown in FIGS. 3 and 4 Thus, it is a substantially annular shaped body.
  • the movable scroll-side key portion 39a is a pair of protrusions that extend in one axial direction along the axial direction from a protrusion that faces the shaft L1 of the main body 39c and extends to the outer peripheral side in the radial direction of the main body 39c.
  • the movable scroll side key portion 39a is formed with a pair of first sliding surfaces P2 including the axial direction and the radial direction of the main body 39c and a pair of first intersecting surfaces P1 perpendicular to the radial direction of the main body.
  • the first sliding surface P2 is a surface that slides on the wall that forms the keyway 26d of the movable scroll 26. All corners formed by the first sliding surface P2 and the first intersecting surface P1 are chamfered (see FIGS. 2, 3 and 5). The chamfer angle is 30 ° with respect to the first sliding surface P2.
  • the ratio of the C chamfering length to the length of the movable scroll side key portion 39a in the main body radial direction is preferably 0.005 or more and 0.06 or less.
  • the housing-side key portion 39b is a pair of protrusions that extend in the axial direction to the opposite side of the movable scroll-side key portion 39a from a protrusion portion that faces and sandwiches the axis L1 of the main body 39c and extends radially outward. Yes, it is arranged at a position inclined about 90 ° from the movable scroll side key 39a about the axis L1.
  • the housing side key portion 39b includes a second sliding surface P4 that is parallel to the first intersecting surface P1 of the movable scroll side key portion 39a, and a first sliding surface P2 of the movable scroll side key portion 39a. And a second intersecting plane P3, which is a plane parallel to the surface.
  • the second sliding surface P4 slides against the wall that forms the groove of the housing 23.
  • the movable scroll side key portion 39a is fitted into the key groove 26d of the movable scroll 26, and the housing side key portion 39b is fitted into an Oldham groove (not shown) formed in the housing 23.
  • This Oldham groove is an oval groove.
  • the drive motor 16 is a DC motor in the present embodiment, and mainly rotates with an annular stator 51 fixed to the inner wall surface of the casing 10 and a slight gap (air gap passage) inside the stator 51.
  • the rotor 52 is freely housed.
  • a copper wire is wound around a tooth portion, and a coil end 53 is formed above and below.
  • the rotor 52 is connected to the movable scroll 26 of the scroll compression pump unit 15 via a crankshaft 17 disposed in the axial center of the body casing portion 11 so as to extend in the vertical direction. It is tied.
  • crankshaft 17 Since the crankshaft 17 has an oil supply hole 18 formed so as to penetrate vertically along the direction intersecting the longitudinal direction, when the crankshaft 17 is rotated by the drive motor 16, the centrifugal pump As a result, the oil sump S force is also supplied to the bearing 26c of the movable scroll 26. Then, the lubricating oil supplied to the bearing portion 26c of the movable scroll 26 is supplied to the thrust surface of the movable scroll 26 and the housing 23, and then returns to the oil sump S again.
  • the lower main bearing 60 is disposed in a lower space below the drive motor 16.
  • the lower main bearing 60 is fixed to the trunk casing 11 and constitutes a lower end bearing of the crankshaft 17 and supports the crankshaft 17.
  • the suction pipe 19 is for guiding the refrigerant in the refrigerant circuit to the scroll compression pump unit 15 and is fitted in the body casing portion 11 of the casing 10 in an airtight manner.
  • the discharge pipe 20 is for discharging the refrigerant in the casing 10 to the outside of the casing 10, and is fitted into the upper wall portion 12 of the casing 10 in an airtight manner.
  • the crankshaft 17 rotates and the orbiting scroll 26 does not rotate and performs a revolution operation.
  • the low-pressure gas refrigerant passes through the suction pipe 19 and is sucked into the compression chamber 40 from the peripheral side of the compression chamber 40 and is compressed as the volume of the compression chamber 40 changes, and becomes a high-pressure gas refrigerant.
  • the high-pressure gas refrigerant is discharged from the central portion of the compression chamber 40 through the discharge passage to the discharge pipe 20 and discharged outside the casing 10.
  • the gas refrigerant discharged to the outside of the casing 10 circulates through the refrigerant circuit, and is again sucked into the scroll compression pump unit 15 through the suction pipe 19 and compressed.
  • the ratio of the C chamfering length to the length in the main body radial direction of the movable scroll side key portion 39a is set to 0.005 or more and 0.06 or less. It was. Therefore, in this low-pressure dome type scroll compressor 1, while maintaining the surface pressure of the first sliding surface P2 of the movable scroll side key portion 39a against the wall forming the key groove 26d of the movable scroll 26, the movable scroll side It is possible to suppress the removal of the surface coating of the movable scroll 26 by the key portion 39a.
  • the corner S formed by the first sliding surface P2 and the first intersecting surface P1 of the movable scroll side key portion 39a is C-chamfered force S.
  • R May be chamfered.
  • the C chamfer angle of the corner formed by the first sliding surface P2 and the first intersecting surface P1 of the movable scroll side key portion 39a is relative to the first sliding surface P2.
  • the C chamfer angle is not particularly limited, and there is no problem as long as it is 1 ° or more.
  • the C chamfering angle is preferably 45 ° or less, more preferably 30 ° or less with respect to the first sliding surface P2, from the viewpoint of easy penetration of the lubricating oil into the sliding surface.
  • the movable scroll 26 according to the first embodiment is subjected to a rubrite process as a surface film forming process! /, But, as a surface film forming process, molybdenum disulfide treatment or alumite is used. Other surface film formation treatment such as treatment is applied!
  • the Oldham ring 39 according to the present invention is applied to the low pressure dome type scroll compressor 1.
  • the Oldham ring 39 is used in a high pressure dome type scroll compressor, a high and low pressure dome type scroll compressor, and the like. May be.
  • the movable scroll side key portion 39a extends from the projection portion extending to the radially outer peripheral side of the main body 39c to one side along the axial direction.
  • the movable scroll side key part 39a may extend from the main body to one side along the axial direction.
  • the housing-side key portion 39b extends from the protruding portion extending radially outward of the main body 39c to the opposite side of the movable scroll-side key portion 39a along the axial direction.
  • the housing-side key portion 39b may extend from the main body to the opposite side of the movable scroll-side key portion 39a along the axial direction.
  • the movable scroll side key portion 39a and the housing side key portion 39b are formed on opposite sides of the main body.
  • another pair of key portions hereinafter referred to as fixed scroll side key portions
  • 139 Oldham rings There are 139 Oldham rings.
  • the fixed scroll side key portion 139b is fitted into grooves 124a, 224a, 324a formed on the lower surface of the surrounding wall portion or the flange portion of the fixed scrolls 124, 224, 324 as shown in FIGS. Become.
  • the fixed scroll side key portion 139b When the fixed scroll side key portion 139b is also directed upward in this way, the lubricating oil around all the key portions 39a, 139b tends to dry out. Therefore, in this case, not only the movable scroll side key part 39a but also the fixed scroll side key part 139b is subjected to the same chamfering process as in the first embodiment. Specifically, in the fixed scroll side key portion 139b, the twelfth sliding surface P14 that is parallel to the first intersecting plane P1 of the movable scroll side key portion 39a and the movable scroll side key portion 139b.
  • All corner portions formed from the twelfth intersecting surface P13, which is a surface parallel to the first sliding surface P2 of the groove side key portion 39a, are chamfered or rounded.
  • the coating portion may be applied to the entire fixed cronoles 124, 224, 324, or may be applied only to the walls that form the grooves of the fixed cronoles 124, 224, 324.
  • the ratio of the C chamfering length to the length of the fixed scroll side key portion 139b in the main body radial direction is preferably 0.005 or more and 0.06 or less.
  • the movable scroll side key portion 39a is opposed to the shaft L of the main body 39c across the axis L, and extends to one side along the axial direction from the protruding portion extending radially outward of the main body 39c.
  • the housing side key portion 39b is arranged so as to be opposed to the movable scroll side key portion 39a with the shaft L of the main body 39c at a position inclined by approximately 90 ° around the axis L with the shaft L of the main body 39c interposed therebetween. From the protruding portion extending to the side, the movable scroll side key portion 39a was extended along the axial direction to the opposite side.
  • FIG. 12 and FIG. 13 it is composed of a cylinder, a main cylinder, a main body 239c, a movable scrambler lj key 239a, and a fixed scroll side key part 239b.
  • the main body 239c is a substantially annular shaped body as shown in FIG.
  • the fixed scroll side key portion 239b is a pair of protrusions that face each other across the axis L2 of the main body 239c and extend from the radially outer peripheral portion of the main body 239c to one side along the axial direction.
  • the fixed scroll side key portion 239b includes a pair of 21st sliding surfaces P24 including the axial direction and the radial direction of the main body 239c and a pair of 21st crossing surfaces P23 orthogonal to the radial direction of the main body. Is formed.
  • the 21st sliding surface P24 (Fig. 9 ⁇ ; fixed scrambler 124124, 224, 324 as shown, groove 124a,
  • the corners formed by the 21st sliding surface P24 and the 21st intersecting surface P23 are all chamfered (Fig. 12).
  • the moving scroll side key portion 239a is parallel to the 21st sliding surface P24 and includes the axis L2 of the main body 239c.
  • this movable scroll side key part 239a is shifted and arranged on either side of the two fixed scroll side key parts 239b.
  • the movable scroll side key portion 239a includes a twenty-second crossing surface P21 that is parallel to the twenty-first sliding surface P24 of the fixed scroll side key portion 239b, and a twenty-first crossing surface of the fixed scroll side key portion 239b.
  • a 22nd sliding surface P22 which is a surface parallel to P23 is formed.
  • the 22nd sliding surface P22 slides against the wall forming the keyway 26d of the movable scroll 26. All corners formed by the 22nd sliding surface P22 and the 22nd intersecting surface P21 are chamfered (see FIGS. 12 and 13).
  • the chamfer angle is 30 ° with respect to the 22nd sliding surface P22.
  • the ratio of C chamfering to the length in the direction in which the virtual line orthogonal to the virtual surface VP2 of the movable scroll side key portion 239a extends is preferably 0.005 or more and 0.06 or less.
  • the surface film forming process is performed on the entire surface.
  • the key groove 26d of the movable scroll 26 may be subjected to the surface film forming process, and further the key groove 26d.
  • Only the wall forming the surface may be subjected to a surface film forming treatment.
  • the housing 23 according to the first embodiment is formed with an elliptical Oldham groove, but the shape of the Oldham groove is not limited to the elliptical shape, and any other shape will not cause a force.
  • the low-pressure dome type scroll compressor according to the second embodiment of the present invention is the same as the low-pressure dome type scroll compressor 1 according to the first embodiment except for the Oldham ring and the operation at the time of start-up. For this reason, only the Oldham ring 339 and the operation at startup will be described here.
  • the Oldham ring 339 according to the second embodiment mainly includes a main body 39c, a movable scroll side key portion 339a, and a housing side key portion 39b.
  • the main body 39c is shown in Fig. 1. As shown in FIG. 5 and FIG. 16, it is a substantially annular shaped body.
  • the movable scroll-side key portion 339a is a pair of protrusions that are opposed to each other across the axis L of the main body 39c and extend to one side along the axial direction from a protrusion that extends to the outer peripheral side in the radial direction of the main body 39c.
  • the movable scroll side key portion 339a includes a pair of first sliding surfaces P2 including the axial direction and the radial direction of the main body 39c, a pair of first intersecting surfaces P1 orthogonal to the radial direction of the main body 39c, An upper end surface P31 that is orthogonal to the axial direction of the main body 39c is formed.
  • the first sliding surface P2 is a surface that slides on the wall that forms the keyway 26d of the movable scroll 26.
  • the movable scroll side key portion 339a is formed with a recess HL1 that opens to the upper end surface P31 (see FIGS. 14 to 18).
  • the housing-side key portion 39b is a pair of protrusions that extend in the axial direction to the opposite side of the movable scroll-side key portion 39a from the protruding portion that extends opposite to the outer peripheral side in the radial direction of the main body 39c across the axis L of the main body 39c. Yes, it is arranged at a position inclined about 90 ° from the movable scroll side key portion 39a about the axis L.
  • the movable scroll side key portion 39a is fitted in the key groove 26d of the movable scroll 26, and the housing side key portion 39b is fitted in an Oldham groove (not shown) formed in the housing 23.
  • the Oldham groove is an oval groove.
  • the drive motor 16 is rotated at a low speed for a predetermined time by inverter control at the time of start-up.
  • a hollow HL1 that opens to the upper end surface P31 is provided in the movable skeleton side key portion 339a of the Oldham ring 339.
  • the lubricating oil can be stored in the depression HL1 for a certain period.
  • the lubricating oil can be immediately supplied between the movable scroll side key portion 399a and the wall forming the key groove 26d at the time of activation.
  • the drive motor 16 is rotated at a low speed for a predetermined time by inverter control.
  • the lubricating oil accumulated in the depression HL1 at the time of start-up is easily spilled from the depression HL1. Therefore, in this low-pressure dome type scroll compressor, the lubricating oil can be supplied almost certainly between the movable scroll side key portion 399a and the wall forming the key groove 26d at the time of startup.
  • the invention according to the first embodiment (the invention of chamfering the key portion of the Oldham ring 39) is applied to the low-pressure dome type scroll compressor according to the second embodiment. Also good.
  • the drive motor 16 is rotated at a low speed for a predetermined time by the inverter control at the time of start-up. 16 can be inching. Even in this way, it is possible to obtain the same results as those of the low-pressure dome type scroll compressor according to the second embodiment.
  • the low-pressure dome type scroll compressor 101 according to the third embodiment of the present invention is the same as the low-pressure dome type scroll compressor 1 according to the first embodiment except for the movable scroll. others Therefore, only the movable scroll 126 will be described here.
  • the Oldham ring may be a conventional Oldham ring, or the Oldham ring 39 according to the first embodiment may be employed, or a modification of the first embodiment.
  • Such Oldham rings 139 and 239 may be employed, or the Oldham ring 339 according to the second embodiment may be employed.
  • the movable scroll 126 mainly includes an end plate 126a, and a spiral (impolete) wrap 26b formed on the upper surface side of the end plate 126a. It is comprised from the bearing part 26c formed in the lower surface side of the end plate 126a.
  • subjected is the same part as the part which concerns on 1st Embodiment.
  • the movable scroll 126 is subjected to a rubright process on the entire surface.
  • the end plate 126a has key grooves 26d at both ends.
  • the end plate 126a is formed with an oil supply passage 126e penetrating from a portion surrounded by the bearing portion 26c to the key groove 26d.
  • the oil supply passage 126e includes a small-diameter passage 261 formed on the bearing portion 26c side and a large-diameter passage 262 formed in the key groove 26d and communicating with the small-diameter passage 261.
  • a flow rate adjusting member 127 is press-fitted and fixed to the large path 262.
  • the flow rate adjusting member 127 has a through hole 128 having a smaller diameter than the small diameter path 261.
  • the through hole 128 is in a state where the flow rate adjusting member 127 is press-fitted and fixed to the large diameter path 262.
  • the small path 261 is communicated with the keyway 26d. That is, the supply amount of the lubricating oil to the key groove 26d is limited by the diameter of the through hole 128 of the flow rate adjusting member 127.
  • the lubricating oil is supplied from the oil reservoir S to the bearing portion 26c of the movable scroll 126 by the action of the centrifugal pump. Is done.
  • the lubricating oil supplied to the bearing portion 26c of the movable scroll 26 is supplied to the thrust surface of the movable scroll 26 and the housing 23 and the small diameter of the oil supply passage 126a formed in the end plate 126a of the movable scroll 126. It is supplied to the key groove 26 d of the movable scroll 126 through the passage 261 and the through hole 128 of the flow rate adjusting member 127. And then, supply to each part such as scroll compression pump unit The applied lubricating oil returns to the sump S again.
  • an oil supply passage 126e penetrating from a portion surrounded by the bearing portion 26c of the end plate 126a to the key groove 26d is formed in the movable scroll 126.
  • lubricating oil is supplied to the keyway 26d.
  • the oil supply passage 126e formed in the end plate 126a of the movable scroll 126 is composed of the small diameter path 261 and the large diameter path 262, and the large diameter path 262
  • the flow rate adjusting member 127 was press-fitted and fixed. For this reason, in this low-pressure dome type scroll compressor 101, the supply amount of the lubricating oil to the key groove 26d of the movable scroll can be adjusted without requiring difficult processing.
  • the movable scroll 126 according to the third embodiment is subjected to a rubrite treatment as a surface coating formation treatment! /, But other surface coating formation treatments such as molybdenum disulfide treatment and alumite treatment as the surface coating formation treatment. Has been given! /
  • the movable scroll 126 is applied to the low pressure dome type scroll compressor 101.
  • This movable scroll 126 is used in a high pressure dome type scroll compressor, a high and low pressure dome type scroll compressor, and the like. May be.
  • the surface film forming process is performed on the whole, but only the key groove 26d of the movable scroll 126 is subjected to the surface film forming process.
  • only the wall forming the key groove 26d may be subjected to the surface film forming process.
  • the oil supply passage 126e is formed in the end plate 126a so as to penetrate from the portion surrounded by the bearing portion 26c of the end plate 126a to the key groove 26d. It may be formed so as to penetrate from the portion 26c to the key groove 26d.
  • the key groove 26d is formed at both ends of the end plate 126a.
  • the key groove is formed on the lower surface (that is, the side where the bearing portion 26c exists) of the end plate of the movable scroll. Only formed! /, Even! /.
  • the oil supply passage 126e is configured by force with the small diameter path 261 and the large diameter path 262, and the flow rate adjusting member 127 is press-fitted and fixed to the large diameter path 262.
  • the flow rate adjusting member 127 is fixed with screws. It may be. That is, a female screw is cut on the inner peripheral wall of the large path 262 and a male screw is cut on the outer periphery of the flow rate adjusting member 127.
  • the oil supply passage 126e is composed of the small diameter passage 261 and the large diameter passage 262
  • the force oil supply passage in which the flow rate adjusting member 127 is press-fitted and fixed to the large diameter passage 262 is composed of only the small passage.
  • the flow rate adjusting member 127 need not be inserted.
  • the rotation prevention member according to the present invention provides the key portion of the rotation prevention member and the key groove when the scroll compressor is started, even when the film portion of the movable scroll is completely lost. It has a feature that seizure and abnormal wear can be prevented from occurring between the formed walls and is particularly useful for a low-pressure dome type scroll compressor.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

L'invention concerne un élément empêchant la rotation et un compresseur à spirale. La durée de vie d'un film de surface appliqué à la paroi d'une rainure de clavette formée dans une spirale mobile est rendue plus longue que la durée de vie classique. L'élément empêchant la rotation (339) comprend un corps annulaire (39c), une paire de premières parties de clavette (339a) et une paire de secondes parties de clavette (39b). Les premières parties de clavette sont opposées les unes aux autres sur les deux côtés de l'axe (L1) du corps, et seul un côté des premières parties de clavette s'étend le long de la direction axiale du corps. Les premières parties de clavette comprennent une paire de premières surfaces (P2) comprenant la direction axiale et la direction radiale du corps. Les secondes parties de clavette sont opposées l'une à l'autre sur les deux côtés d'une surface virtuelle (VP2) parallèle aux premières surfaces et comprenant l'axe, et le même côté que les premières parties de clavette ou le côté opposé aux premières parties de clavette s'étend le long de la direction axiale. Les secondes parties de clavette comprennent une paire de troisièmes surfaces (P4) perpendiculaires aux premières surfaces et comprenant la direction axiale. Une cavité (HL1) formée dans la surface terminale (P31) sur le côté où la partie de clavette s'étend est disposée dans au moins chacune des premières parties de clavette et des secondes parties de clavette.
PCT/JP2007/068124 2006-09-21 2007-09-19 Élément empêchant la rotation et compresseur à spirale WO2008035690A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200780034236.5A CN101517237B (zh) 2006-09-21 2007-09-19 防自转部件和涡旋式压缩机
US12/441,517 US8241022B2 (en) 2006-09-21 2007-09-19 Rotation-preventing member and scroll compressor

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2006256234 2006-09-21
JP2006-256234 2006-09-21
JP2006339002A JP2008101599A (ja) 2006-09-21 2006-12-15 自転防止部材、スクロール圧縮機、および可動スクロール部品
JP2006-339002 2006-12-15

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Publication Number Publication Date
WO2008035690A1 true WO2008035690A1 (fr) 2008-03-27

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PCT/JP2007/068124 WO2008035690A1 (fr) 2006-09-21 2007-09-19 Élément empêchant la rotation et compresseur à spirale

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021149303A1 (fr) * 2020-01-24 2021-07-29 パナソニックＩｐマネジメント株式会社 Compresseur à spirale

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101216466B1 (ko) * 2011-10-05 2012-12-31 엘지전자 주식회사 올담링을 갖는 스크롤 압축기
KR101277213B1 (ko) 2011-10-11 2013-06-24 엘지전자 주식회사 바이패스 홀을 갖는 스크롤 압축기
KR101275190B1 (ko) 2011-10-12 2013-06-18 엘지전자 주식회사 스크롤 압축기
CN103216446A (zh) * 2013-05-15 2013-07-24 力达(中国)机电有限公司 一种新动涡盘平移机构的涡旋式空气压缩机
CN103807170B (zh) * 2014-03-11 2016-04-06 张云娣 一种过高压及缺氟保护的柔性涡旋压缩机
CN105089704A (zh) * 2015-09-11 2015-11-25 山东科灵节能装备股份有限公司 自润滑涡旋膨胀发电机组
JP6098706B1 (ja) * 2015-12-28 2017-03-22 ダイキン工業株式会社 スクロール圧縮機
US10815992B2 (en) * 2016-05-24 2020-10-27 Daikin Industries, Ltd. Scroll compressor having Oldham coupling with key portions and different width key gaps
CN106949049B (zh) * 2017-04-28 2020-06-02 上海海立新能源技术有限公司 一种立式压缩机
CN106930941B (zh) * 2017-04-28 2020-06-02 上海海立新能源技术有限公司 一种压缩机

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04179885A (ja) * 1990-11-09 1992-06-26 Toshiba Corp スクロール形圧縮機
JPH11236885A (ja) * 1998-02-20 1999-08-31 Hitachi Ltd スクロール圧縮機
JP2000205153A (ja) * 1999-01-07 2000-07-25 Hitachi Ltd スクロ―ル圧縮機
JP2000283063A (ja) * 1999-03-26 2000-10-10 Sanden Corp スクロール流体機械のオルダムカップリング
JP2002349457A (ja) * 2001-05-18 2002-12-04 Fujitsu General Ltd スクロール型圧縮機
JP2003035282A (ja) * 2001-07-19 2003-02-07 Mitsubishi Heavy Ind Ltd スクロール型流体機械
JP2003176793A (ja) * 2001-12-11 2003-06-27 Matsushita Electric Ind Co Ltd スクロール圧縮機
JP2003239874A (ja) * 2001-06-05 2003-08-27 Hitachi Ltd スクロール圧縮機

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09112448A (ja) * 1995-10-18 1997-05-02 Matsushita Electric Ind Co Ltd スクロール圧縮機

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04179885A (ja) * 1990-11-09 1992-06-26 Toshiba Corp スクロール形圧縮機
JPH11236885A (ja) * 1998-02-20 1999-08-31 Hitachi Ltd スクロール圧縮機
JP2000205153A (ja) * 1999-01-07 2000-07-25 Hitachi Ltd スクロ―ル圧縮機
JP2000283063A (ja) * 1999-03-26 2000-10-10 Sanden Corp スクロール流体機械のオルダムカップリング
JP2002349457A (ja) * 2001-05-18 2002-12-04 Fujitsu General Ltd スクロール型圧縮機
JP2003239874A (ja) * 2001-06-05 2003-08-27 Hitachi Ltd スクロール圧縮機
JP2003035282A (ja) * 2001-07-19 2003-02-07 Mitsubishi Heavy Ind Ltd スクロール型流体機械
JP2003176793A (ja) * 2001-12-11 2003-06-27 Matsushita Electric Ind Co Ltd スクロール圧縮機

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021149303A1 (fr) * 2020-01-24 2021-07-29 パナソニックＩｐマネジメント株式会社 Compresseur à spirale
JP2021116731A (ja) * 2020-01-24 2021-08-10 パナソニックＩｐマネジメント株式会社 スクロール圧縮機

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