WO2013061957A1 - Multi-cylinder rotary compressor and method for joining division plate between compression chambers thereof - Google Patents
Multi-cylinder rotary compressor and method for joining division plate between compression chambers thereof Download PDFInfo
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- WO2013061957A1 WO2013061957A1 PCT/JP2012/077340 JP2012077340W WO2013061957A1 WO 2013061957 A1 WO2013061957 A1 WO 2013061957A1 JP 2012077340 W JP2012077340 W JP 2012077340W WO 2013061957 A1 WO2013061957 A1 WO 2013061957A1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
- F04C2230/603—Centering; Aligning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
Definitions
- the present invention relates to a multi-cylinder rotary compressor provided with a partition plate divided into two sheets and a method for joining the partition plates of the compression chamber.
- the divided surfaces of the two divided plates are aligned and temporarily fixed before fixing so as not to be displaced in the longitudinal direction of the divided surfaces.
- the reason for this is that if the two split plates are slightly shifted from before fixing or are shifted during fixing, they may be fixed as they are when they are fixed with bolts, etc., and the desired assembly accuracy may not be realized. Because there is.
- the present invention has been made to solve such problems, and an object of the present invention is to provide a multi-cylinder rotary compressor including a split-type partition plate that can be assembled and positioned with high accuracy.
- a multi-cylinder rotary compressor includes: A plurality of adjacent compression chambers; In a multi-cylinder rotary compressor that is divided into two divided plates, and includes a partition plate that presses and fixes the mating surfaces of the divided plates to each other and partitions adjacent compression chambers, At least one of the divided plates has a cut-out surface parallel to the mating surface at the central portion of the outer peripheral surface.
- the method of joining the partition plates of the compression chamber of the multi-cylinder rotary compressor is as follows: A plurality of adjacent compression chambers; A partition plate is provided, which is divided into two divided plates, the mating surfaces of the respective divided plates are fixed to each other so that the two divided plates surround the crankshaft, and partition between adjacent compression chambers.
- Each of the two divided plates has an upper surface, a lower surface, a mating surface, and an outer peripheral surface, Each outer peripheral surface has a symmetrical shape with respect to the cut surface when divided into two equal parts by a plane perpendicular to the longitudinal direction of the mating surface,
- On the outer peripheral surface of one of the divided plates there is a phase determining surface that determines the phase between the two divided plates parallel to the mating surface, Two sheets so that the center axis of the crankshaft coincides with the origin of the virtual joint reference line (X axis) and the respective mating surfaces overlap the X axis in a state where the mating surfaces of the pair of dividing plates are temporarily aligned.
- a partition plate temporary step for temporarily setting the divided plates The other divided plate is slidably supported at two positions on the outer peripheral surface of the other divided plate and symmetrical with respect to the Y axis passing through the origin of the X axis and perpendicular to the X axis. While A mating surface positioning step of pressing the outer peripheral surface of one of the divided plates evenly toward the X axis at two points symmetrical to the Y axis; A phase determination surface pressing step for pressing the phase determination surface toward the Y-axis direction and the direction of the other divided plate; A split plate fixing step for fixing the two split plates to each other to form a single split plate.
- the method of joining the partition plates of the compression chamber of the multi-cylinder rotary compressor is as follows: A plurality of adjacent compression chambers; A partition plate is provided, which is divided into two divided plates, the mating surfaces of the respective divided plates are fixed to each other so that the two divided plates surround the crankshaft, and partition between adjacent compression chambers.
- Each of the two divided plates has an upper surface, a lower surface, a mating surface, and an outer peripheral surface, Each outer peripheral surface has a symmetrical shape with respect to the cut surface when divided into two equal parts by a plane perpendicular to the longitudinal direction of the mating surface,
- a set for determining the phase between the two divided plates symmetrically with respect to the cut surface when the divided plate is divided into two equal parts by a plane perpendicular to the longitudinal direction of the mating surface Having a planar phasing surface
- the center axis of the crankshaft coincides with the origin of the virtual joint reference line (X axis), and the two mating surfaces overlap the X axis.
- a partition plate temporary step for temporarily setting the dividing plate The other divided plate is slidably supported at two positions on the outer peripheral surface of the other divided plate and symmetrical with respect to the Y axis passing through the origin of the X axis and perpendicular to the X axis. While, in the direction of the Y axis and toward the other divided plate, a phase positioning and merging step that uniformly presses one set of phase determining surfaces of one divided plate; A split plate fixing step for fixing the two split plates to each other to form a single split plate.
- At least one divided plate of the multi-cylinder rotary compressor according to the present invention has a notch surface (phase determining surface) parallel to the mating surface at the center of the outer peripheral surface
- the partition plate that partitions the adjacent compression chambers can be assembled accurately so that the longitudinal direction of the mating surface of the dividing plate is exactly the same as the sliding direction of the vane, and the mating surface overlaps the sliding range of the vane, High efficiency can be achieved by forming an oil seal on the mating surfaces.
- the vane is not affected by being caught by a minute step on the mating surface, a multi-cylinder rotary compressor with few mechanical failures can be provided.
- FIG. 1 is a longitudinal sectional view of a multi-cylinder rotary compressor according to Embodiment 1 of the present invention.
- 1 is a cross-sectional view taken along line AA of a multi-cylinder rotary compressor according to Embodiment 1 of the present invention.
- It is a top view which shows the structure of the partition plate of the multicylinder rotary compressor which concerns on Embodiment 1 of this invention.
- It is a cross-sectional schematic diagram of the partition plate assembling apparatus of the multi-cylinder rotary compressor according to Embodiment 1 of the present invention and the compression mechanism set therein.
- It is a flowchart which shows the outline
- FIG. 6 is a cross-sectional view taken along line AA in FIG. 5. It is a top view which shows the structure of the partition plate of the multicylinder rotary compressor which concerns on Embodiment 2 of this invention. It is a figure which shows the assembly process of the partition plate of the multicylinder rotary compressor which concerns on Embodiment 2 of this invention.
- FIG. Embodiment 1 is a longitudinal sectional view of a multi-cylinder rotary compressor 100 (hereinafter referred to as a compressor 100).
- FIG. 2 is a cross-sectional view taken along line AA of the compressor 100 shown in FIG.
- a two-cylinder rotary compressor for a refrigeration / air conditioner having two compression chambers will be described as an example.
- the motor 2 installed in the shell 1 is driven by energization from the glass terminal portion 7 to rotate the crankshaft 6 having the first eccentric portion 63a and the second eccentric portion 63b. Then, the refrigerant is sucked into the first compression chamber 21a and the second compression chamber 21b through the suction muffler 8 and the suction pipe 5. The refrigerant compressed along with the rotation of the crankshaft 6 is discharged from the discharge pipe 4 to the outside of the compressor 100.
- the compressor 100 includes a shell 1 that is an airtight container, a motor 2 that is a drive source installed inside the shell 1, and a compression mechanism unit 3 that is also installed inside the shell 1.
- the shell 1 includes an upper shell 1a, an intermediate shell 1b, and a lower shell 1c.
- the upper shell 1a is provided with a discharge pipe 4 for discharging a compressed refrigerant to the outside of the compressor.
- a motor 2 and a compression mechanism section 3 are fixed to the intermediate shell 1b, and a suction pipe 5 that guides the refrigerant to the compression mechanism section 3 is fixed.
- the suction pipe 5 is connected to a suction muffler 8, and in the suction muffler 8, gas-liquid separation of the refrigerant and removal of dust in the refrigerant are performed.
- the motor 2 Power to the motor 2 is supplied from the glass terminal portion 7 provided on the upper shell 1a.
- the motor 2 has a stator 2 a and a rotor 2 b, and the rotor 2 b is attached to the crankshaft 6.
- the rotational torque generated by the motor 2 is transmitted to the compression mechanism unit 3 through the crankshaft 6.
- the compression mechanism unit 3 includes a crankshaft 6, a first frame 31a, a first cylinder block 33a, a first spring 9, a first vane 10, a first roller 32a, a partition plate 35, a second cylinder block 33b, and a second frame. It has a body 31b, a second spring, a second vane, and a second roller 32b. And the short volt
- bolt 14 are penetrated to the through-hole provided in each of the 1st frame 31a, the 1st cylinder block 33a, the partition plate 35, the 2nd cylinder block 33b, and the 2nd frame 31b. By fastening the bolts, these components constituting the compression mechanism unit 3 are fixed by pressure bonding.
- the crankshaft 6 has a rotor fitting portion 61, a first bearing insertion portion 62a, a first eccentric portion 63a, an intermediate portion 64, a second eccentric portion 63b, and a second bearing insertion portion 62b.
- the first eccentric portion 63a and the second eccentric portion 63b are different in the eccentric phase by 180 degrees, and the first roller 32a and the second roller 32b are mounted on the respective outer peripheral surfaces.
- a space surrounded by the lower surface of the first frame 31a, the inner peripheral surface of the first cylinder block 33a, the upper surface of the partition plate 35, and the outer peripheral surface of the first roller 32a is the first compression chamber 21a.
- a space surrounded by the lower surface of the partition plate 35, the inner peripheral surface of the second cylinder block 33b, the upper surface of the second frame 31b, and the outer peripheral surface of the second roller 32b is the second compression chamber 21b.
- the partition plate 35 is disposed between the first cylinder block 33a and the second cylinder block 33b, and plays a role of partitioning the adjacent first compression chamber 21a and second compression chamber 21b.
- the first cylinder block 33a is provided with a slit from the inner peripheral surface to the radially outer side, and the first vane 10 biased by the first spring 9 is mounted therein.
- the tip of the first vane 10 abuts on the outer peripheral surface of the first roller 32a mounted around the first eccentric portion 63a, and partitions the first compression chamber 21a into the low pressure portion 23 and the high pressure portion 24.
- the pressure outside the compression mechanism 3 is higher than the inside of the compression chamber. Therefore, the back surface of the first vane 10 (on the side opposite to the first roller 32a) is connected to the outside of the compression mechanism unit 3 so that the first vane 10 is pressed against the first roller 32a by the differential pressure. Has been released by.
- the first spring 9 is assembled to the first cylinder block 33 a through the back pressure hole 11. Since the crankshaft 6 rotates while the first vane 10 is pressed against the first roller 32a, the first vane 10 moves back and forth in the slit in the expansion and contraction direction of the first spring 9.
- the internal structure and operation of the second cylinder block 33b are basically the same.
- the first eccentric portion 63a and the second eccentric portion 63b have a phase difference of 180 degrees, and the first vane 10 and the second vane are disposed without a phase difference with the partition plate 35 interposed therebetween.
- the compression chamber 21a and the second compression chamber 21b repeat the compression operation alternately, and the refrigerant compressed in the first compression chamber 21a is compressed from the first discharge port 31c opened in the first frame 31a. 3, the refrigerant compressed in the second compression chamber 21b is discharged to the outside of the compression mechanism unit 3 from a second discharge port (not shown) opened in the second frame 31b. It is different in point.
- FIG. 3 is a plan view of a partition plate 35 composed of two divided plates 42a and 42b.
- the dividing plates 42a and 42b have a semicircular shaft notch 45 on the mating surface 43 side, and the dividing plates 42a and 42b sandwich the intermediate portion 64 of the crankshaft 6 from both sides with the shaft notch 45 portions. In this way, the partition plate 35 is formed.
- the divided plates 42a and 42b are fastened with bolts and nuts 46 for fastening through the holes 44a and 42b.
- a phase determination notch 48 (phase determination surface) used when assembling the partition plate 35 is provided on the outer peripheral surface of the dividing plate 42b in a planar shape and parallel to the mating surface 43.
- the circumferential length of the phasing notch 48 in parallel with the mating surface 43 is set larger than the diameter of the crankshaft 6. Details of this reason and how to use the phasing notch 48 will be described later.
- the split plates 42a and 42b are provided with the flat surfaces for fixing bolts and the holes 44a and 44b in the projections 47 at both ends of the mating surface 43, and the split plates 42a and 42b are connected with bolts or the like. It has a fixed structure. By combining the divided plates 42a and 42b and fixing them with bolts / nuts 46 or the like, the partition plate 35 and the compression mechanism unit 3 can be assembled without a large gap. Thereby, the split plate 42a and the split plate 42b do not shift due to vibration during operation of the compressor 100, and a large gap can be prevented from being generated between the mating surfaces 43.
- the range of the first vane 10 and the second vane on the edge of the mating surface 43 is such that the mating surfaces 43 of the dividing plates 42a and 42b are parallel to the movement direction of both vanes (FIG. 3, It is necessary to assemble the partition plate 35 in such a positional relationship as to slide in the vane sliding range 49).
- both vanes are connected from the back pressure hole 11.
- the refrigerating machine oil supplied to the oil is supplied with the movement of both vanes, and an oil seal can be formed between the mating surfaces 43 of the dividing plates 42a and 42b.
- a partition plate that is not affected can be configured.
- FIG. 4 is a schematic cross-sectional view of the compression mechanism assembling apparatus 70 and the compression mechanism portion 3 set in the compression mechanism assembly apparatus 70.
- FIG. 5 is a flowchart showing the outline of the assembly procedure of the compression mechanism unit 3.
- the compressor 100 is aligned so that the inner peripheral surface of the first cylinder block 33a and the outer peripheral surface of the first roller 32a do not excessively interfere with each other.
- the one frame body 31a and the first cylinder block 33a are fastened by the short bolt 13. (STEP2)
- the compression mechanism portion 3 in the state of STEP 4 is inserted into the positioning pin 71 of the compression mechanism assembling apparatus 70 and the positioning hole 33e opened in the first cylinder block 33a is inserted.
- the first cylinder block 33a and the second cylinder block 33b are arranged in a state in which the mating surfaces 43 are aligned so that the intermediate portion 64 of the crankshaft 6 is sandwiched between the notches 45 of the dividing plate 42a and the dividing plate 42b from the right. Temporary in the middle.
- the mating surfaces 43 of the dividing plate 42a and the dividing plate 42b are temporarily installed so as to extend from the near side to the far side in FIG. (Partition plate temporary step)
- the partition plate 35 is positioned and fixed in the compression mechanism section 3 with the mating surfaces 43 of the divided plates 42a and 42b being parallel to the sliding direction of each vane and overlapping the sliding range.
- the procedure to do is explained.
- 6 is a cross-sectional view taken along line AA in FIG.
- the X axis is a virtual joint reference line for aligning the mating surfaces 43 of the divided plates 42a and 42b.
- the origin is a point on the central axis of the crankshaft 6.
- the Y axis is a line passing through the origin and orthogonal to the X axis.
- the dividing plates 42a and 42b are temporarily installed so that the respective origination surfaces 43 are aligned on the X axis, with the origin being the center.
- the dividing plate support plate 72a is a member that expands and contracts to the left and right in FIG. 6 and that slidably supports the outer peripheral surface of the dividing plate 42a at two predetermined V-shaped tip portions. The length between the two tip portions of the divided plate support plate 72a is larger than the diameter of the crankshaft 6.
- the dividing plate support plate 72b integrally has a flat pressing portion 73 between a V-shaped tip and a V-shaped tip.
- the length between the two tip portions is larger than the diameter of the crankshaft 6, and the lateral width of the tip of the pressing portion 73 is also made larger than the diameter of the crankshaft 6.
- the front ends of the divided plate support plate 72a and the divided plate support plate 72b are always in a symmetrical position with respect to the Y axis.
- the tip end that opens in a V-shape is slidably abutted on the outer peripheral surface of the divided plate 42b, but at the same time, the tip of the pressing portion 73 is the phase determination notch 48 of the divided plate 42b.
- the dividing plate 42b rotates to a predetermined phase following the pressing portion 73, and further the dividing plate 42a rotates to a predetermined phase following the mating surface of the dividing plate 42b.
- the mating surfaces 43 of the dividing plate 42a and the dividing plate 42b are pressed in an overlapping manner in a state of facing the vertical direction in FIG.
- the first cylinder block 33 a integrated with the first frame body 31 a is positioned on the compression mechanism assembling apparatus 70 by the positioning pin 71. Further, since the cylinder fixing mechanism 74 is fixed to the compression mechanism assembling apparatus 70 from the vertical direction in FIG. 6, the shaft penetration formed by the center position of the inner peripheral surface of the first cylinder block 33 a and the shaft notch 45.
- the partition plate 35 can be positioned with respect to the first cylinder block 33a so that the centers of the holes 50 coincide.
- the dividing plate 42b pushes a phase-determining notch 48 parallel to the mating surface 43 with the pressing portion 73, so that the phase of the partition plate 35 is adjusted so that the longitudinal direction of the mating surface 43 coincides with the sliding direction of the vane. Can be determined.
- the shaft center is adjusted using the alignment mechanism 75 and the misalignment measuring sensor 76 using the method disclosed in Japanese Patent No. 2858547.
- the first cylinder block 33 a and the second cylinder block 33 b are fixed with the long bolts 14.
- the bolts and nuts 46 for fastening the divided plates are passed through the holes 44a and 44b, and the divided plates 42a and 42b are fastened to complete the assembly of the compression mechanism section 3.
- STEP6 the bolts and nuts 46 for fastening the divided plates are passed through the holes 44a and 44b, and the divided plates 42a and 42b are fastened to complete the assembly of the compression mechanism section 3.
- the longitudinal direction of the mating surface of the partition plate is exactly the same as the sliding direction of each vane. Since the mating surface 43 is configured to overlap the sliding range of the vane, an oil seal can be formed on the mating surface 43 to exhibit high efficiency. Further, since each vane is not affected by being caught by a minute step on the mating surface 43, a multi-cylinder rotary compressor with few mechanical failures can be provided.
- the phase-determining notch 48 is a plane. However, the phase-determining notch 48 is not necessarily a plane, and it is sufficient that the phase of the divided plates 42a and 42b can be determined to be a predetermined state when the partition plate 35 is assembled.
- the divided plates 42a and 42b temporarily provided between the cylinder blocks are combined with high accuracy in the subsequent process. Since they can be joined, the tact time of the assembly process of the multi-cylinder rotary compressor can be shortened.
- FIG. 7 is a plan view of a partition plate 235 that partitions adjacent compression chambers of the multi-cylinder rotary compressor according to this embodiment.
- FIG. 8 is a diagram illustrating an assembly process of the partition plate 235. The shape of the dividing plate 242b constituting the partition plate 235 is different from the dividing plate 42b of the first embodiment.
- the planar phasing notch 248 (phase determining surface) is symmetric with respect to the cut surface when the divided plate 242b is divided into two equal parts by a plane perpendicular to the mating surface 43 thereof. It is provided in two places.
- the flat angle provided in the first embodiment is obtained by making the outer angle formed by the two phasing notches 248 of the dividing plate 242b coincide with the angle of the V-shaped tip of the dividing plate support plate 272b of the compression mechanism assembling apparatus 70.
- the pressing part 73 can be omitted. Even in such a configuration, the dividing plate 242b follows the V-shaped tip of the dividing plate support plate 272b, and then the mating surface 43 of the dividing plate 42a follows the mating surface 43 of the dividing plate 242b.
- the partition plate 235 can be accurately aligned with the virtual joining reference line, and at the same time, the positions of the mating surfaces 43 of the divided plates 42a and 242b can be aligned on the X axis.
- the phase positioning merging step corresponding to both the mating surface positioning step and the phase determination surface pressing step in the first embodiment is executed at a time.
- the time required for assembling the multi-cylinder rotary compressor can be shortened.
- the length between the two tip portions of the divided plate support plate 272 b is larger than the diameter of the crankshaft 6.
- the length between the farthest ends of the two phasing notches 248 is also set larger than the diameter of the crankshaft 6, if the dividing plate 242b is pressed by the dividing plate support plate 272b, the division is performed.
- the plate 42a easily rotates following the mating surface of the dividing plate 242b even with a small force.
- phase determination notches 248 are adjacent to each other.
- the phase determination notches 248 are provided in the above-described positional relationship, the same effect can be obtained even if they are separated from each other. It is done. Further, a plurality of sets of phase determination notches may be provided as long as they are at least one set.
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Abstract
Description
以下、その理由を説明する。
圧縮機の圧縮効率を高めるために偏心部を大きくしようとすると、仕切板の穴が大きくなって効率が落ちるという矛盾に陥るため、仕切板を分割し、仕切板を貫通する軸穴を小さくする必要がある。 According to the invention of
The reason will be described below.
If you try to enlarge the eccentric part in order to increase the compression efficiency of the compressor, it will cause a contradiction that the hole of the partition plate becomes large and the efficiency falls, so split the partition plate and make the shaft hole that penetrates the partition plate small There is a need.
第1に、分割板の合わせ面の縁を2個のベーンが上下から挟んで摺動し、ベーンの摺動方向と分割面の合わせ面の長手方向が完全に一致する状態で組み立てること。
この理由は、ベーンの動作によって、ベーンの外周側に設けた背圧口から、分割板の合わせ面に対して冷凍機油を供給し、油シールを行うことができ、更にベーンが合わせ面の微細な段差に引っ掛かることを防止するためである。 When the partition plate is assembled by sandwiching the crankshaft from both sides at the notch portions for the crankshaft provided on each split plate using the two split plates, the following conditions must be satisfied.
First, assembling so that two vanes slide on the edge of the mating surface of the dividing plate from above and below, and the sliding direction of the vane and the longitudinal direction of the mating surface of the dividing surface completely coincide.
The reason for this is that refrigeration oil can be supplied to the mating surface of the dividing plate from the back pressure port provided on the outer periphery side of the vane by the operation of the vane, and oil sealing can be performed. This is to prevent the user from getting caught in a large step.
この理由は、2枚の分割板が固定前から僅かにずれていたり、固定中にずれたりすると、ボルト等で固定する場合はそのままの状態で固定されてしまい、所望の組立精度を実現できない恐れがあるからである。
これらのことは、仕切板を構成する分割板の合わせ面の長手方向をベーンの方向に一致させかつ、クランク軸の軸心に対して2枚の分割板を正確に位置決めする必要があることを意味する。 Secondly, the divided surfaces of the two divided plates are aligned and temporarily fixed before fixing so as not to be displaced in the longitudinal direction of the divided surfaces.
The reason for this is that if the two split plates are slightly shifted from before fixing or are shifted during fixing, they may be fixed as they are when they are fixed with bolts, etc., and the desired assembly accuracy may not be realized. Because there is.
These facts indicate that the longitudinal direction of the mating surfaces of the partition plates constituting the partition plate must coincide with the vane direction, and the two partition plates must be accurately positioned with respect to the axis of the crankshaft. means.
隣接する複数の圧縮室と、
2枚の分割板に分割され、それぞれの分割板の合わせ面同士を互いに圧接固定して、隣接する圧縮室間を仕切る仕切板とを備えた多気筒回転式圧縮機において、
少なくとも1枚の分割板は、外周面中央部に合わせ面と平行な切り欠き面を有するものである。
また、この発明に係る、多気筒回転式圧縮機の圧縮室の仕切板の接合方法は、
隣接する複数の圧縮室と、
2枚の分割板に分割され、それぞれの分割板の合わせ面同士を、2枚の分割板がクランク軸を取り囲むように互いに圧接固定して、隣接する圧縮室間を仕切る仕切板とを備えた多気筒回転式圧縮機の圧縮室の仕切板の接合方法において、
2枚の分割板はそれぞれ、上面、下面、合わせ面、外周面を有し、
それぞれの外周面は、合わせ面の長手方向に垂直な平面で2等分した場合における切断面に対して対称な形状を有し、
一方の分割板の外周面には、合わせ面と平行な、2枚の分割板間の位相を決定する位相決定面を有し、
一対の分割板のそれぞれの合わせ面を仮に合わせた状態で、クランク軸の中心軸が仮想接合基準線(X軸)の原点と一致し、それぞれの前記合わせ面がX軸と重なるように2枚の分割板を仮設する仕切板仮設ステップと、
他方の分割板の外周面上の2点であって、X軸の原点を通りX軸に垂直なY軸に対して対称となる2箇所の位置において他方の分割板を摺動可能に支持しつつ、
一方の分割板の外周面をY軸に対して対称となる2点で、X軸に向かって均等に押圧する合わせ面位置決めステップと、
Y軸方向、かつ他方の分割板の方向に向かって位相決定面を押圧する位相決定面押圧ステップと、
2枚の分割板を互いに固定して1枚の仕切板を構成する分割板固定ステップとを有するものである。
また、この発明に係る、多気筒回転式圧縮機の圧縮室の仕切板の接合方法は、
隣接する複数の圧縮室と、
2枚の分割板に分割され、それぞれの分割板の合わせ面同士を、2枚の分割板がクランク軸を取り囲むように互いに圧接固定して、隣接する圧縮室間を仕切る仕切板とを備えた多気筒回転式圧縮機の圧縮室の仕切板の接合方法において、
2枚の分割板はそれぞれ、上面、下面、合わせ面、外周面を有し、
それぞれの外周面は、合わせ面の長手方向に垂直な平面で2等分した場合における切断面に対して対称な形状を有し、
一方の分割板の外周面には、分割板を合わせ面の長手方向に垂直な平面で2等分した場合における切断面に対して対称に、2枚の分割板間の位相を決定する1組の平面状の位相決定面を有し、
一対の分割板のそれぞれの合わせ面を仮に合わせた状態で、クランク軸の中心軸が仮想接合基準線(X軸)の原点と一致し、それぞれの合わせ面がX軸と重なるように2枚の分割板を仮設する仕切板仮設ステップと、
他方の分割板の外周面上の2点であって、X軸の原点を通りX軸に垂直なY軸に対して対称となる2箇所の位置において他方の分割板を摺動可能に支持しつつ、Y軸方向かつ他方の分割板の方向に向かって、一方の分割板の一組の位相決定面を均等に押圧する位相位置決め併合ステップと、
2枚の分割板を互いに固定して1枚の仕切板を構成する分割板固定ステップとを有するものである。 A multi-cylinder rotary compressor according to the present invention includes:
A plurality of adjacent compression chambers;
In a multi-cylinder rotary compressor that is divided into two divided plates, and includes a partition plate that presses and fixes the mating surfaces of the divided plates to each other and partitions adjacent compression chambers,
At least one of the divided plates has a cut-out surface parallel to the mating surface at the central portion of the outer peripheral surface.
Further, according to the present invention, the method of joining the partition plates of the compression chamber of the multi-cylinder rotary compressor is as follows:
A plurality of adjacent compression chambers;
A partition plate is provided, which is divided into two divided plates, the mating surfaces of the respective divided plates are fixed to each other so that the two divided plates surround the crankshaft, and partition between adjacent compression chambers. In the method of joining the partition plates of the compression chamber of the multi-cylinder rotary compressor,
Each of the two divided plates has an upper surface, a lower surface, a mating surface, and an outer peripheral surface,
Each outer peripheral surface has a symmetrical shape with respect to the cut surface when divided into two equal parts by a plane perpendicular to the longitudinal direction of the mating surface,
On the outer peripheral surface of one of the divided plates, there is a phase determining surface that determines the phase between the two divided plates parallel to the mating surface,
Two sheets so that the center axis of the crankshaft coincides with the origin of the virtual joint reference line (X axis) and the respective mating surfaces overlap the X axis in a state where the mating surfaces of the pair of dividing plates are temporarily aligned. A partition plate temporary step for temporarily setting the divided plates;
The other divided plate is slidably supported at two positions on the outer peripheral surface of the other divided plate and symmetrical with respect to the Y axis passing through the origin of the X axis and perpendicular to the X axis. While
A mating surface positioning step of pressing the outer peripheral surface of one of the divided plates evenly toward the X axis at two points symmetrical to the Y axis;
A phase determination surface pressing step for pressing the phase determination surface toward the Y-axis direction and the direction of the other divided plate;
A split plate fixing step for fixing the two split plates to each other to form a single split plate.
Further, according to the present invention, the method of joining the partition plates of the compression chamber of the multi-cylinder rotary compressor is as follows:
A plurality of adjacent compression chambers;
A partition plate is provided, which is divided into two divided plates, the mating surfaces of the respective divided plates are fixed to each other so that the two divided plates surround the crankshaft, and partition between adjacent compression chambers. In the method of joining the partition plates of the compression chamber of the multi-cylinder rotary compressor,
Each of the two divided plates has an upper surface, a lower surface, a mating surface, and an outer peripheral surface,
Each outer peripheral surface has a symmetrical shape with respect to the cut surface when divided into two equal parts by a plane perpendicular to the longitudinal direction of the mating surface,
On the outer peripheral surface of one of the divided plates, a set for determining the phase between the two divided plates symmetrically with respect to the cut surface when the divided plate is divided into two equal parts by a plane perpendicular to the longitudinal direction of the mating surface Having a planar phasing surface
In a state where the mating surfaces of the pair of divided plates are temporarily aligned, the center axis of the crankshaft coincides with the origin of the virtual joint reference line (X axis), and the two mating surfaces overlap the X axis. A partition plate temporary step for temporarily setting the dividing plate;
The other divided plate is slidably supported at two positions on the outer peripheral surface of the other divided plate and symmetrical with respect to the Y axis passing through the origin of the X axis and perpendicular to the X axis. While, in the direction of the Y axis and toward the other divided plate, a phase positioning and merging step that uniformly presses one set of phase determining surfaces of one divided plate;
A split plate fixing step for fixing the two split plates to each other to form a single split plate.
隣接する圧縮室間を仕切る仕切板を、分割板の合わせ面の長手方向が、丁度ベーンの摺動方向と一致し、ベーンの摺動範囲に合わせ面が重なるように正確に組み立てることができ、合わせ面に油シールを形成し高効率を発揮できる。
また、ベーンが合わせ面の微細な段差に引っ掛かる等の影響を受けないので、機械的にも故障の少ない多気筒回転式圧縮機を提供できる。 Since at least one divided plate of the multi-cylinder rotary compressor according to the present invention has a notch surface (phase determining surface) parallel to the mating surface at the center of the outer peripheral surface,
The partition plate that partitions the adjacent compression chambers can be assembled accurately so that the longitudinal direction of the mating surface of the dividing plate is exactly the same as the sliding direction of the vane, and the mating surface overlaps the sliding range of the vane, High efficiency can be achieved by forming an oil seal on the mating surfaces.
In addition, since the vane is not affected by being caught by a minute step on the mating surface, a multi-cylinder rotary compressor with few mechanical failures can be provided.
以下、この発明の実施の形態1を図を用いて説明する。
図1は、多気筒回転式圧縮機100(以下、圧縮機100という)の縦断面図である。
図2は、図1に示す圧縮機100のA-A線における横断面図である。
本実施の形態では、圧縮室を2室備えた2シリンダ式の冷凍・空調機用ロータリ圧縮機を例に挙げて説明する。
FIG. 1 is a longitudinal sectional view of a multi-cylinder rotary compressor 100 (hereinafter referred to as a compressor 100).
FIG. 2 is a cross-sectional view taken along line AA of the
In the present embodiment, a two-cylinder rotary compressor for a refrigeration / air conditioner having two compression chambers will be described as an example.
ガラス端子部7からの通電によりシェル1内部に設置されたモータ2を駆動して、第1偏心部63a及び第2偏心部63bを有するクランク軸6を回転させる。
そして吸入マフラ8及び吸入パイプ5を通じて、冷媒が第1圧縮室21a及び第2圧縮室21bに吸入される。
クランク軸6の回転に伴って圧縮された冷媒は、吐出パイプ4より圧縮機100の外部へ吐出される。 First, an outline of the
The
Then, the refrigerant is sucked into the
The refrigerant compressed along with the rotation of the
圧縮機100は、密閉容器であるシェル1と、シェル1の内部に設置された駆動源であるモータ2と、同じくシェル1の内部に設置された圧縮機構部3とを備える。
シェル1は、上部シェル1a、中間シェル1b、下部シェル1cで構成されていて、上部シェル1aには、圧縮された冷媒を圧縮機外部へ吐出する吐出パイプ4が設けられている。
中間シェル1bには、モータ2と圧縮機構部3が固定されており、圧縮機構部3へ冷媒を導く吸入パイプ5が固定されている。
吸入パイプ5は吸入マフラ8に接続されており、吸入マフラ8内で、冷媒の気液の分離や、冷媒中のゴミの除去を行う。 Next, a detailed configuration of the
The
The
A
The
モータ2は、固定子2aと回転子2bを有しており、回転子2bはクランク軸6に取り付けられている。モータ2で発生した回転トルクはクランク軸6を通して圧縮機構部3に伝達される。 Power to the
The
そして、第1枠体31a、第1シリンダブロック33a、仕切板35、第2シリンダブロック33b、第2枠体31bのそれぞれに設けられた貫通穴に、短いボルト13と長いボルト14を貫通させてボルト締結することで、圧縮機構部3を構成するこれらの部品を圧着固定している。 The
And the short volt |
また、仕切板35の下面、第2シリンダブロック33bの内周面、第2枠体31bの上面、及び第2ローラ32bの外周面で囲まれる空間が第2圧縮室21bとなる。
このように仕切板35は、第1シリンダブロック33aと第2シリンダブロック33bの間に配置されており、隣接する第1圧縮室21aと第2圧縮室21bを仕切る役割を果たしている。 A space surrounded by the lower surface of the
A space surrounded by the lower surface of the
Thus, the
第1ベーン10は、その先端が第1偏心部63aの周囲に装着した第1ローラ32aの外周面に当接し、第1圧縮室21aを低圧部分23と高圧部分24に仕切っている。 The
The tip of the
そこで、その差圧によっても第1ベーン10が第1ローラ32aに押し付けられるように、第1ベーン10の背面(第1ローラ32aと反対側)は、圧縮機構部3の外部へ背圧孔11によって開放されている。
第1バネ9は、背圧孔11を通して第1シリンダブロック33aに組み立てられる。
第1ベーン10が第1ローラ32aに押し付けられた状態でクランク軸6が回転するため、第1ベーン10は第1バネ9の伸縮方向にスリットの中で前後に運動する。 During operation of the
Therefore, the back surface of the first vane 10 (on the side opposite to the
The first spring 9 is assembled to the
Since the
ただし、第1偏心部63aと第2偏心部63bは180度の位相差があり、第1ベーン10と第2ベーンは、仕切板35を挟んで位相差がなく配置されているので、第1圧縮室21aと第2圧縮室21bは交互に圧縮動作を繰り返すことになる点と、第1圧縮室21aで圧縮された冷媒は第1枠体31aに開けた第1吐出口31cから圧縮機構部3の外部へ吐出されるのに対して、第2圧縮室21bで圧縮された冷媒は第2枠体31bに開けた第2吐出口(図示せず)から圧縮機構部3の外部に吐出される点で異なる。 The internal structure and operation of the
However, the first
図3は、2枚の分割板42a、42bで構成される仕切板35の平面図である。
分割板42a、42bは、合わせ面43側に半円状のシャフト用切欠き45を有し、分割板42a、42bがクランク軸6の中間部64を両側からシャフト用切欠き45の部分で挟み込むようにして組み立てられて仕切板35を形成する。
分割板42a、42bの合わせ面43の両端には、分割板42a、42bを互いに固定する為の突起部47があり、この突起部47に締結用の穴44a、42bを備えている。
穴44a、42bを連通して締結用のボルト・ナット46などで、分割板42a、42bを締結する。 Next, the structure of the
FIG. 3 is a plan view of a
The dividing
At both ends of the mating surfaces 43 of the divided
The divided
また、分割板42bの外周面には仕切板35を組み立てるときに使用する位相決め切り欠き48(位相決定面)が、平面状に、合わせ面43に平行に設けられている。
位相決め切り欠き48の合わせ面43と平行な周方向の長さは、クランク軸6の直径より大きく設定する。
この理由と位相決め切り欠き48の使用方法についての詳細は後述する。 As a result, the
Further, a phase determination notch 48 (phase determination surface) used when assembling the
The circumferential length of the phasing
Details of this reason and how to use the phasing
分割板42a、42bを合わせてボルト・ナット46等で固定することにより、大きな隙間なく仕切板35及び圧縮機構部3を組み立てることが可能となる。
これにより、圧縮機100の運転時の振動などにより分割板42aと分割板42bがずれることがなく、それぞれの合わせ面43の間に大きな隙間が発生することを防止することができる。 As described above, the
By combining the divided
Thereby, the
そこで、分割板42a、42bのそれぞれの合わせ面43が、両ベーンの運動方向に平行になるように、かつ、第1ベーン10及び第2ベーンが合わせ面43の縁上の範囲(図3、ベーン摺動範囲49)を摺動するような位置関係で仕切板35を組み立てる必要がある。 However, there are still gaps due to processing accuracy and steps due to processing accuracy of the divided plates.
Therefore, the range of the
図4は、圧縮機構組立装置70と、これにセットした圧縮機構部3の断面模式図である。
図5は、圧縮機構部3の組立手順の骨子を示すフローチャートである。 Next, a method for assembling the compressor according to the present invention, in particular, a method for aligning the mating surfaces 43 of the dividing
FIG. 4 is a schematic cross-sectional view of the compression
FIG. 5 is a flowchart showing the outline of the assembly procedure of the
これにより、クランク軸6の軸心に対する各偏心部の偏心量を求める。(STEP1) First, when the
Thereby, the amount of eccentricity of each eccentric portion with respect to the axis of the
次に、STEP2及びSTEP3で各シリンダブロックを締結した第1枠体31aと第2枠体31bにクランク軸6を仮挿入し、軸が滑らかに回転するかチェックする。(STEP4) Similarly, the
Next, the
そして、クランク軸6の中間部64を左から分割板42a、右から分割板42bの各切欠き45で挟みこむようにして各合わせ面43を合わせた状態で第1シリンダブロック33aと第2シリンダブロック33bの中間に仮設する。
この時、分割板42aと分割板42bの各合わせ面43が、図4の手前側から奥側に伸びるように仮設する。(仕切板仮設ステップ) Next, with the
Then, the
At this time, the mating surfaces 43 of the dividing
図6は、図4のA-A線における断面図である。
図6において、X軸は、分割板42a、42bの合わせ面43をこれに揃えるための仮想接合基準線である。
原点は、クランク軸6の中心軸上の一点ある。
Y軸は、原点を通りX軸に直行する線である。
分割板42a、42bは、概ね原点が中心となり、X軸上に各合わせ面43が揃うように仮設されている。
分割板支持プレート72aは、図6の左右に伸縮し、V字型の2つの先端部が所定の位置で分割板42aの外周面を摺動可能に支持する部材である。
分割板支持プレート72aの2つの先端部間の長さは、クランク軸6の直径より大きくしている。
分割板支持プレート72bは、V字型に開口する先端とそのV字型の先端部間に平坦な押圧部73を一体として有している。
分割板支持プレート72bについても、2つの先端部間の長さは、クランク軸6の直径より大きくし、押圧部73の先端の横幅もクランク軸6の直径より大きくしている。
分割板支持プレート72a及び分割板支持プレート72bの先端部は、常にY軸に対して対称な位置にある。
Hereinafter, the
6 is a cross-sectional view taken along line AA in FIG.
In FIG. 6, the X axis is a virtual joint reference line for aligning the mating surfaces 43 of the divided
The origin is a point on the central axis of the
The Y axis is a line passing through the origin and orthogonal to the X axis.
The dividing
The dividing
The length between the two tip portions of the divided
The dividing
Also for the divided
The front ends of the divided
これによって、分割板42aと分割板42bの各合わせ面43が、図6の上下方向を向く状態で重なり合って押圧される。(STEP5-1:位相決定面押圧ステップ)
なお、実際には、分割板42a、42bの仮設状態によって、分割板支持プレート72bの2箇所の先端部と、押圧部73が、分割板42bに接触する順序は異なるが、最終的には、これら3箇所が全て分割板42bの外周面に接触することになる。
従って、合わせ面位置決めステップと位相決定面押圧ステップは同時に進行する場合もある。
なお、位相決め切り欠き48の分割板42bの合わせ面43と平行な方向の長さも、クランク軸6の直径より大きく設定しているので、クランク軸6の直径より横幅の大きい押圧部73で押圧すれば分割板42aは分割板42bの合わせ面に倣って容易に回転する。 Also in the divided
As a result, the mating surfaces 43 of the dividing
Actually, depending on the temporary state of the divided
Therefore, the mating surface positioning step and the phase determining surface pressing step may proceed simultaneously.
In addition, since the length of the phasing
また、シリンダ固定機構74で、図6の上下方向から圧縮機構組立装置70に固定されているので、第1シリンダブロック33aの内周面の中心位置とシャフト用切欠き45によって形成されるシャフト貫通孔50の中心が一致するように、仕切板35を第1シリンダブロック33aに対して位置決めすることができる。
また、分割板42bは合わせ面43に対して平行な位相決め切り欠き48を押圧部73で押すことにより、合わせ面43の長手方向がベーンの摺動方向と一致するように仕切板35の位相を決定することができる。
なお、引き続いて、調芯機構75及び芯ずれ計測センサ76を使用して軸心の調整を特許第2858547号公報等に示された方法を用いて行う。(STEP5-2)
次に、第1シリンダブロック33aと第2シリンダブロック33bとを長いボルト14で固定する。(STEP5-3)
そして最後に、分割板締結用のボルト・ナット46を穴44a、44bに通し、分割板42aと分割板42bを締結して圧縮機構部3の組立を完了する。(STEP6) As described above, at this time, the
Further, since the
Further, the dividing
Subsequently, the shaft center is adjusted using the
Next, the
Finally, the bolts and
また、各ベーンが合わせ面43の微細な段差に引っ掛かる等の影響を受けないので、機械的にも故障の少ない多気筒回転式圧縮機を提供できる。
なお、本実施の形態では位相決め切り欠き48を平面としたが、必ずしも平面である必要はなく、仕切板35の組立時に、分割板42a、42bの位相を所定の状態に決定できればよい。
また、本発明の実施の形態1に係る多気筒回転式圧縮機の圧縮室の仕切板の接合方法によれば、シリンダーブロック間に仮設した分割板42a、42bを、その後工程で精度良く組み合わせて接合できるので、多気筒回転式圧縮機の組立工程のタクトタイムを短縮することができる。 In the multi-cylinder rotary compressor according to
Further, since each vane is not affected by being caught by a minute step on the
In the present embodiment, the phase-determining
Moreover, according to the joining method of the partition plates of the compression chamber of the multi-cylinder rotary compressor according to the first embodiment of the present invention, the divided
以下、本発明に係る多気筒回転式圧縮機の実施の形態2を図を用いて、実施の形態1と異なる部分を中心に説明する。
図7は、本実施形態に係る多気筒回転式圧縮機の隣接する圧縮室間を仕切る仕切板235の平面図である。
図8は、仕切板235の組立工程を示す図である。
仕切板235を構成する分割板242bの形状が実施の形態1の分割板42bと異なる。
分割板242bでは、平面状の位相決め切り欠き248(位相決定面)を、仮に分割板242bをその合わせ面43に垂直な平面で2等分した場合の切断面に対して対称となるように2箇所に設けている。
Hereinafter, a second embodiment of the multi-cylinder rotary compressor according to the present invention will be described with reference to the drawings, focusing on portions different from the first embodiment.
FIG. 7 is a plan view of a
FIG. 8 is a diagram illustrating an assembly process of the
The shape of the dividing
In the divided
このような構成であっても、分割板242bが分割板支持プレート272bのV字状先端部に倣い、次に、分割板42aの合わせ面43が、分割板242bの合わせ面43に倣うことにより、仕切板235を正確に、仮想接合基準線に合わせ、同時に分割板42aと242bの合わせ面43のX軸上での位置も揃えることができる。
この場合、実施の形態1における、合わせ面位置決めステップと位相決定面押圧ステップの両処理に相当する、位相位置決め併合ステップを一度に実行することになる。
これにより、多気筒回転式圧縮機の組み立てに要する時間を短縮できる。
なお、分割板支持プレート272bについて、2つの先端部間の長さは、クランク軸6の直径より大きくしている。
また、2つの位相決め切り欠き248の最も離れた端部同士の間の長さも、クランク軸6の直径より大きく設定しているので、分割板支持プレート272bで分割板242bを押圧すれば、分割板42aは、小さな力でも分割板242bの合わせ面に倣って容易に回転する。 The flat angle provided in the first embodiment is obtained by making the outer angle formed by the two
Even in such a configuration, the dividing
In this case, the phase positioning merging step corresponding to both the mating surface positioning step and the phase determination surface pressing step in the first embodiment is executed at a time.
Thereby, the time required for assembling the multi-cylinder rotary compressor can be shortened.
Note that the length between the two tip portions of the divided
In addition, since the length between the farthest ends of the two
また、位相決め切り欠きは、1組以上であれば複数組あっても良い。 In this embodiment, the configuration in which the
Further, a plurality of sets of phase determination notches may be provided as long as they are at least one set.
Claims (9)
- 隣接する複数の圧縮室と、
2枚の分割板に分割され、それぞれの前記分割板の合わせ面同士を互いに圧接固定して、隣接する前記圧縮室間を仕切る仕切板とを備えた多気筒回転式圧縮機において、
少なくとも1枚の前記分割板は、外周面中央部に前記合わせ面と平行な、前記2枚の分割板間の位相を決定する位相決定面を有する多気筒回転式圧縮機。 A plurality of adjacent compression chambers;
In a multi-cylinder rotary compressor that is divided into two divided plates, each having a partition plate that presses and fixes the mating surfaces of the divided plates and partitions the adjacent compression chambers,
The multi-cylinder rotary compressor in which at least one of the divided plates has a phase determination surface that determines a phase between the two divided plates in parallel with the mating surface at a central portion of an outer peripheral surface. - 隣接する複数の圧縮室と、
2枚の分割板に分割され、それぞれの前記分割板の合わせ面同士を互いに圧接固定して、隣接する前記圧縮室間を仕切る仕切板とを備えた多気筒回転式圧縮機において、
少なくとも1枚の前記分割板の外周面は、前記分割板を前記合わせ面の長手方向に垂直な平面で2等分した場合における切断面に対して対称な、2枚の前記分割板間の位相を決定する対となる1組以上の平面状の位相決定面を有する多気筒回転式圧縮機。 A plurality of adjacent compression chambers;
In a multi-cylinder rotary compressor that is divided into two divided plates, each having a partition plate that presses and fixes the mating surfaces of the divided plates and partitions the adjacent compression chambers,
The outer peripheral surface of at least one of the divided plates is symmetrical with respect to the cut surface when the divided plate is divided into two equal parts by a plane perpendicular to the longitudinal direction of the mating surface. A multi-cylinder rotary compressor having one or more sets of planar phase determination surfaces that form a pair for determining. - 前記対となる1組の位相決定面は、互いに隣接している請求項2に記載の多気筒回転式圧縮機。 The multi-cylinder rotary compressor according to claim 2, wherein the pair of phase determining surfaces that are paired are adjacent to each other.
- 前記位相決定面の前記合わせ面と平行な方向の長さは、前記仕切板の中央を貫通するクランク軸の直径より大である請求項1に記載の多気筒回転式圧縮機。 2. The multi-cylinder rotary compressor according to claim 1, wherein a length of the phase determination surface in a direction parallel to the mating surface is larger than a diameter of a crankshaft penetrating a center of the partition plate.
- 前記対となる1組の位相決定面の最も離れた端部同士の間の長さは、前記仕切板の中央を貫通するクランク軸の直径より大である請求項2に記載の多気筒回転式圧縮機。 3. The multi-cylinder rotary type according to claim 2, wherein a length between the farthest ends of the pair of phase determination surfaces as a pair is larger than a diameter of a crankshaft penetrating a center of the partition plate. Compressor.
- 隣接する複数の圧縮室と、
2枚の分割板に分割され、それぞれの前記分割板の合わせ面同士を、2枚の前記分割板がクランク軸を取り囲むように互いに圧接固定して、隣接する前記圧縮室間を仕切る仕切板とを備えた多気筒回転式圧縮機の圧縮室の仕切板の接合方法において、
2枚の前記分割板はそれぞれ、上面、下面、前記合わせ面、外周面を有し、
それぞれの前記外周面は、前記合わせ面の長手方向に垂直な平面で2等分した場合における切断面に対して対称な形状を有し、
一方の前記分割板の外周面には、前記合わせ面と平行な、前記2枚の分割板間の位相を決定する位相決定面を有し、
一対の前記分割板のそれぞれの前記合わせ面を仮に合わせた状態で、前記クランク軸の中心軸が仮想接合基準線(X軸)の原点と一致し、それぞれの前記合わせ面が前記X軸と重なるように2枚の前記分割板を仮設する仕切板仮設ステップと、
他方の前記分割板の前記外周面上の2点であって、前記X軸の前記原点を通り前記X軸に垂直なY軸に対して対称となる2箇所の位置において他方の前記分割板を摺動可能に支持しつつ、
一方の前記分割板の前記外周面を前記Y軸に対して対称となる2点で、前記X軸に向かって均等に押圧する合わせ面位置決めステップと、
前記Y軸方向、かつ他方の前記分割板の方向に向かって前記位相決定面を押圧する位相決定面押圧ステップと、
2枚の前記分割板を互いに固定して1枚の前記仕切板を構成する分割板固定ステップとを有する多気筒回転式圧縮機の圧縮室の仕切板の接合方法。 A plurality of adjacent compression chambers;
A partition plate that is divided into two divided plates, and that the mating surfaces of each of the divided plates are fixed to each other so that the two divided plates surround the crankshaft, and partitions between adjacent compression chambers; In the method of joining the partition plates of the compression chamber of the multi-cylinder rotary compressor provided with
Each of the two divided plates has an upper surface, a lower surface, the mating surface, and an outer peripheral surface,
Each of the outer peripheral surfaces has a symmetric shape with respect to the cut surface when divided into two equal parts by a plane perpendicular to the longitudinal direction of the mating surfaces,
On the outer peripheral surface of one of the divided plates, there is a phase determining surface that determines the phase between the two divided plates in parallel with the mating surface,
The center axis of the crankshaft coincides with the origin of the virtual joint reference line (X axis) in a state where the mating surfaces of the pair of split plates are temporarily mated, and the mating surfaces overlap the X axis. A partition plate temporary step for temporarily setting the two divided plates as described above,
The other divided plate is positioned at two points on the outer peripheral surface of the other divided plate, which are symmetrical with respect to the Y axis that passes through the origin of the X axis and is perpendicular to the X axis. While supporting slidably,
A mating surface positioning step of pressing the outer peripheral surface of one of the divided plates evenly toward the X axis at two points that are symmetrical with respect to the Y axis;
A phase determining surface pressing step for pressing the phase determining surface toward the Y-axis direction and the direction of the other divided plate;
A method of joining partition plates of a compression chamber of a multi-cylinder rotary compressor, comprising: a partition plate fixing step for fixing two partition plates to each other to form one partition plate. - 隣接する複数の圧縮室と、
2枚の分割板に分割され、それぞれの前記分割板の合わせ面同士を、2枚の前記分割板がクランク軸を取り囲むように互いに圧接固定して、隣接する前記圧縮室間を仕切る仕切板とを備えた多気筒回転式圧縮機の圧縮室の仕切板の接合方法において、
2枚の前記分割板はそれぞれ、上面、下面、前記合わせ面、外周面を有し、
それぞれの前記外周面は、前記合わせ面の長手方向に垂直な平面で2等分した場合における切断面に対して対称な形状を有し、
一方の前記分割板の外周面には、前記分割板を前記合わせ面の長手方向に垂直な平面で2等分した場合における切断面に対して対称に、2枚の前記分割板間の位相を決定する1組の平面状の位相決定面を有し、
一対の前記分割板のそれぞれの前記合わせ面を仮に合わせた状態で、前記クランク軸の中心軸が仮想接合基準線(X軸)の原点と一致し、それぞれの前記合わせ面が前記X軸と重なるように2枚の前記分割板を仮設する仕切板仮設ステップと、
他方の前記分割板の前記外周面上の2点であって、前記X軸の前記原点を通り前記X軸に垂直なY軸に対して対称となる2箇所の位置において他方の前記分割板を摺動可能に支持しつつ、Y軸方向かつ他方の前記分割板の方向に向かって、一方の前記分割板の一組の前記位相決定面を均等に押圧する位相位置決め併合ステップと、
2枚の前記分割板を互いに固定して1枚の前記仕切板を構成する分割板固定ステップとを有する多気筒回転式圧縮機の圧縮室の仕切板の接合方法。 A plurality of adjacent compression chambers;
A partition plate that is divided into two divided plates, and that the mating surfaces of each of the divided plates are fixed to each other so that the two divided plates surround the crankshaft, and partitions between adjacent compression chambers; In the method of joining the partition plates of the compression chamber of the multi-cylinder rotary compressor provided with
Each of the two divided plates has an upper surface, a lower surface, the mating surface, and an outer peripheral surface,
Each of the outer peripheral surfaces has a symmetric shape with respect to the cut surface when divided into two equal parts by a plane perpendicular to the longitudinal direction of the mating surfaces,
On the outer peripheral surface of one of the divided plates, the phase between the two divided plates is symmetrical with respect to the cut surface when the divided plate is divided into two equal parts by a plane perpendicular to the longitudinal direction of the mating surface. Having a set of planar phasing surfaces to determine;
The center axis of the crankshaft coincides with the origin of the virtual joint reference line (X axis) in a state where the mating surfaces of the pair of split plates are temporarily mated, and the mating surfaces overlap the X axis. A partition plate temporary step for temporarily setting the two divided plates as described above,
The other divided plate is positioned at two points on the outer peripheral surface of the other divided plate, which are symmetrical with respect to the Y axis that passes through the origin of the X axis and is perpendicular to the X axis. A phase positioning and merging step for uniformly pressing the set of phase determining surfaces of one of the divided plates toward the Y-axis direction and the direction of the other divided plate, while slidably supporting;
A method of joining partition plates of a compression chamber of a multi-cylinder rotary compressor, comprising: a partition plate fixing step for fixing two partition plates to each other to form one partition plate. - 前記位相決定面押圧ステップにおける、前記位相決定面を押圧する部材は、前記合わせ面位置決めステップで、一方の前記分割板を押圧する分割板支持プレートと一体として形成されている請求項6に記載の多気筒回転式圧縮機の圧縮室の仕切板の接合方法。 The member that presses the phase determination surface in the phase determination surface pressing step is formed integrally with a divided plate support plate that presses one of the divided plates in the mating surface positioning step. A method of joining partition plates of a compression chamber of a multi-cylinder rotary compressor.
- 前記位相決定面押圧ステップと合わせ面位置決めステップは、同時に実行される請求項6又は請求項8に記載の多気筒回転式圧縮機の圧縮室の仕切板の接合方法。 The method for joining partition plates of a compression chamber of a multi-cylinder rotary compressor according to claim 6 or 8, wherein the phase determining surface pressing step and the mating surface positioning step are executed simultaneously.
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JPS611687U (en) * | 1984-06-11 | 1986-01-08 | 三菱電機株式会社 | Multi-cylinder rotary compressor |
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