JP2020024588A - Management system and management method for managing component of compressor - Google Patents

Abstract

To provide a management system and a management method for managing the component of a compressor, capable of efficiently managing information on a dimension measurement value of the compressor component.SOLUTION: Disclosed is a management system 100 for managing a management object component of a compressor which includes: a storage device 124; a reader 110; an identifier acquisition part 122a; and a component information acquisition part 122b.The storage device stores an individual identifier of the component and information of a dimension measurement value of the component in association with each other. The reader reads a code related to information of the individual identifier of the management object component attached to the management object component. The identifier acquisition part acquires the individual identifier from the code read by the reader. The component information acquisition part reads out information on the dimension measurement value from the storage device based on the individual identifier acquired by the identifier acquisition part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a management system and a management method for managing components of a compressor.

  BACKGROUND ART Conventionally, as in Patent Document 1 (Japanese Patent Application No. 2009-257206), a compressor that compresses and discharges a refrigerant in a compression mechanism is known.

  Such a compressor includes many components that slide with respect to each other, and is described in, for example, Patent Document 1 (Japanese Patent Application No. 2009-257206) according to the sliding state (a gap size between the components). As described above, there is a possibility that the efficiency of the compressor is reduced (for example, the clearance is too large and the refrigerant leaks), or a problem such as seizure occurs. Therefore, from the viewpoint of quality control of the compressor and the like, there is a need for a system / method that efficiently manages information on dimension measurement values of components constituting the compressor.

  A management system according to a first aspect is a management system that manages components of a compressor. The management system includes a storage unit, a reading unit, an obtaining unit, and a reading unit. The storage unit stores the individual identifier of the component and the information of the dimension measurement value of the component in association with each other. The reading unit reads a code associated with information on the individual identifier of the component attached to the component. The acquisition unit acquires an individual identifier from the code read by the reading unit. The reading unit reads the information of the dimension measurement value from the storage unit based on the individual identifier acquired by the acquiring unit.

  Here, since the dimension measurement value of the component can be obtained from the information of the individual identifier attached to the component, the dimension measurement value of the component can be quickly measured without performing re-measurement as necessary when assembling the compressor or the like. Can be obtained.

  The management system according to a second aspect is the management system according to the first aspect, wherein the reading unit performs an information search using the individual identifier as a keyword, and stores information on the dimension measurement value associated with the individual identifier stored in the storage unit. read out.

  Here, the information of the dimension measurement value can be quickly read out from a large number of data on the part.

  The management system according to a third aspect is the management system according to the first aspect or the second aspect, wherein the code related to the information of the individual identifier is a one-dimensional code or a two-dimensional code.

  Here, it is easy to attach the code to the component even when the space where the code relating to the information of the individual identifier can be attached is limited.

  A management system according to a fourth aspect is the management system according to any one of the first to third aspects, wherein the compressor is a rotary compressor. The parts include at least one of a piston, a cylinder, a crankshaft, a front head, and a rear head.

  Here, the dimension measurement information can be managed for the components of the compression mechanism of the rotary compressor and the crankshaft-related parts that transmit power to the compression mechanism, where the information of the dimension measurement values is particularly important. Management and the like can be performed efficiently.

  The management system according to a fifth aspect is the management system according to any one of the first aspect to the fourth aspect, and stores information in which the individual identifier of the component stored in the storage unit and the information of the dimension measurement value of the component are associated. And a transmission unit for transmitting.

  Here, it is possible to transmit information in which the individual identifier of the part and the information of the dimension measurement value of the part are associated with each other.For example, this information is fed back to a manufacturing facility that processes the part, thereby improving the processing accuracy. It can be used to reduce the cost of cutting tools.

  A management method according to a sixth aspect is a management method for managing parts of a compressor. The management method includes the steps of: attaching a code relating to the information of the individual identifier to the component to be managed; measuring the dimension of the component; storing the information of the measured dimension value of the component and the individual identifier of the component in association with each other; Storing in the device.

  Here, a code relating to the information of the individual identifier is attached to the component, and the information of the dimension measurement value of the component and the individual identifier are stored in the storage device in association with each other, so that the information of the dimension measurement value of the component constituting the compressor is stored. Can be managed efficiently.

  A management method according to a seventh aspect is the management method according to the sixth aspect, further comprising a step of transmitting information in which the individual identifier of the component stored in the storage device and the information of the dimension measurement value of the component are associated. .

  Here, information in which the individual identifier of the part and the information of the dimension measurement value of the part are associated is transmitted. For example, this information is fed back to the manufacturing equipment that processes the part, thereby improving the processing accuracy and cutting tool cost. It can be used to reduce

  The management method according to an eighth aspect is the management method according to the sixth aspect or the seventh aspect, wherein in the step of attaching a code to a component, a code is attached to a surface of the component.

  Here, since the code is attached to the surface of the component, it is easy to read the code by the reading unit.

  The management method according to a ninth aspect is the management method according to the eighth aspect, wherein the code is stamped on the component in the step of attaching the code to the component.

  Here, since the code is imprinted, the code can be retained on the component for a long period of time, and the quality traceability of the component of the compressor can be improved.

  A management method according to a tenth aspect is the management method according to any of the sixth to ninth aspects, wherein the code is a one-dimensional code or a two-dimensional code.

  Here, it is easy to attach the code to the component even when the space where the code relating to the information of the individual identifier can be attached is limited.

  A management method according to an eleventh aspect is the management method according to any of the sixth to tenth aspects, wherein the compressor is a rotary compressor. The parts include at least one of a piston, a cylinder, a crankshaft, a front head, and a rear head.

  Here, the dimension measurement information can be managed for the components of the compression mechanism of the rotary compressor and the crankshaft-related parts that transmit power to the compression mechanism, where the information of the dimension measurement values is particularly important. Management and the like can be performed efficiently.

It is an example of a block diagram of a management system of parts of a compressor. FIG. 2 is a longitudinal sectional view of a rotary compressor which is an example of a compressor to be managed by the management system of FIG. 1. FIG. 3 is a sectional view taken along the line III-III in FIG. 2. FIG. 3 is a diagram illustrating an example of a position of a marking unit provided on a crankshaft of the rotary compressor in FIG. 2. FIG. 3 is a diagram illustrating an example of a position of a marking unit provided on a cylinder of the rotary compressor in FIG. 2. FIG. 3 is a diagram illustrating an example of a position of a marking unit provided on a front head of the rotary compressor in FIG. 2. FIG. 3 is a diagram illustrating an example of a position of a marking portion provided on a rear head of the rotary compressor in FIG. 2. FIG. 3 is a plan view of a piston of the rotary compressor of FIG. 2 as viewed from above. FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. 8. It is the top view which looked at the piston of other forms from the upper part. It is the top view which looked at the piston of further another form from the upper part. It is a longitudinal section of a piston of still another form. FIG. 3 is a diagram illustrating an example of a position of a marking unit provided on a vane of the rotary compressor in FIG. 2. It is a longitudinal cross-sectional view of the rotary compressor which is another example of the compressor managed by the management system of FIG. FIG. 15 is a sectional view taken along the line XV-XV in FIG. 14. It is the top view which looked at the piston of the rotary compressor of FIG. 14 from the upper part. FIG. 17 is a sectional view taken along the arrow XVII-XVII in FIG. 16. FIG. 17 is a perspective view of the piston of FIG. 16. 5 is a flowchart illustrating an example of a method for managing components of a compressor. 2 is an example of information stored in a component information database of a storage device of the computer in FIG. 1.

  A compressor component management system 100 and a compressor component management method according to an embodiment will be described.

(1) Overall Overview The management system 100 is a system that manages components of a compressor. The management system 100 is a system for managing the dimension measurement values of the components of the compressor, in particular, to improve the efficiency of manufacturing, maintenance, product management, and the like of the compressor. In the following, the components of the compressor to be managed by the management system 100 may be collectively referred to as managed components.

  The management system 100 is configured to read a code (hereinafter, may be referred to as an individual identifier code) related to information of an individual identifier of the component attached to a component of the compressor, and is communicably connected to the reader 110. Mainly provided with a computer 120.

(2) Details of Management System (2-1) Reader The reader 110 reads a code attached to the management target component (of the marking units M1 to M6 to be described later) relating to the information of the individual identifier of the management target component, This is an apparatus for acquiring an image of a code related to information on an individual identifier. In the present embodiment, the code related to the information of the individual identifier is the individual identifier converted into a two-dimensional code. The code related to the information of the individual identifier will be further described later.

  The reader 110 is, for example, a two-dimensional code scanner or a camera. For example, when the reader 110 is a two-dimensional code scanner, the reader 110 irradiates the light emitted from the LED to the two-dimensional code of the component to be managed, and images the two-dimensional code using a CMOS sensor or the like. The image of the two-dimensional code captured by the reader 110 (that is, the two-dimensional code read by the reader 110) is transmitted to the computer 120.

  Note that the reader 110 may be a device such as a handy scanner that is manually operated by a person so that a two-dimensional code to be read can be read, or a plurality of managed components placed at a predetermined location. May be a device that automatically reads the two-dimensional code.

(2-2) Computer The computer 120 is a computer having a storage device including a CPU, a main storage device such as a RAM and a ROM, and an auxiliary storage device such as a hard disk, an input device, an output device, a communication device, and the like.

  The computer 120 is communicably connected to the reader 110. Further, the computer 120 is preferably capable of communicating with a manufacturing apparatus 400 (for example, an automatic lathe or the like) that manufactures a managed component, a production management computer (not shown) located in a manufacturing factory of the managed component, or the like. Preferably they are connected.

  In the computer 120, when the CPU executes the program stored in the storage device 124, the CPU mainly functions as the identifier acquisition unit 122a, the component information acquisition unit 122b, the combination determination unit 122c, the output unit 122d, and the transmission unit 122e.

  The identifier acquisition unit 122a is an example of an acquisition unit. The identifier acquiring unit 122a is a functional unit that acquires an individual identifier by performing image processing or decoding (decoding) of an image of a code (two-dimensional code) related to information on the individual identifier read by the reader 110.

  The component information acquisition unit 122b is an example of a reading unit. The component information acquisition unit 122b reads information on the managed component including the dimension measurement value of the managed component from the component information database 124a of the storage device 124 based on the individual identifier acquired by the identifier acquiring unit 122a (acquires the information). ) Functional part.

  The combination determining unit 122c is a functional unit that determines a combination of management target components used for a certain compressor. The processing executed by the combination determining unit 122c will be described later.

  The output unit 122d is a functional unit that outputs various information to a display, a printer, or the like as an output device of the computer 120. The information output by the output unit 122d will be described later.

  The transmission unit 122e is a functional unit that transmits various information to an external device or the like via a communication device. The type of information transmitted by the transmission unit 122e will be described later.

  The storage device 124 stores various programs executed by the CPU and various information. Further, the storage device 124 has a component information database 124a described later. However, the component information database 124a may not be included in the computer 120, and another computer with which the computer 120 can communicate may have the component information database 124a.

  Here, the computer 120 functions as the identifier acquisition unit 122a, the component information acquisition unit 122b, the combination determination unit 122c, the output unit 122d, and the transmission unit 122e. However, in another form of management system, the reader 110 may be configured to execute some of these functions (for example, part or all of the functions of the identifier acquisition unit 122a). In another form of the management system, a part of the functions of the computer 120 may be configured to be executed by another computer connected to the computer 120 via a network such as the Internet.

(3) Compressor A rotary compressor as an example of a compressor managed using the management system 100 and the management method of the present embodiment will be described below. Here, the rotary compressor means a rotary compressor that compresses a refrigerant in a compression chamber formed in a cylinder by eccentrically rotating a roller in the cylinder. The rotary compressor includes a first-type compressor described later having a roller and a vane separate from the roller, and a second-type compressor described later having a piston in which a roller and a blade are integrally formed. It is.

  Note that the rotary compressor is an example of a compressor managed using the management system 100 and the management method of the present embodiment, and the type of the compressor managed using the management system and the management method of the present disclosure is as follows. It is not limited to a rotary compressor. For example, the management target of the management system and the management method may be a part of a compressor of a type different from a rotary compressor such as a scroll compressor or a screw compressor.

(3-1) Compressor of First Embodiment A rotary compressor 10 of a first embodiment will be described with reference to the drawings.

(3-1-1) Overall Overview FIG. 2 is a longitudinal sectional view of the rotary compressor 10.

  Hereinafter, words such as “up” and “down” may be used to describe directions, arrangements, and the like, but unless otherwise specified, words such as “up” and “down” according to the directions of arrows in FIG. Is used.

  In the refrigerating apparatus such as an air conditioner or a heat pump water heater, the rotary compressor 10 is a refrigerant circuit that circulates a refrigerant and performs a refrigeration cycle together with a radiator (condenser), an evaporator, and an expansion mechanism (not shown). (Not shown). The rotary compressor 10 is used for compressing a refrigerant in a refrigerant circuit. The rotary compressor 10 compresses the refrigerant in a compression chamber formed in the cylinder 42 by eccentrically rotating the roller 52 in the cylinder 42 as described later. The rotary compressor 10 is a one-cylinder type (that is, having a single cylinder 42) rotary compressor. The rotary compressor 10 is a vertically mounted rotary compressor in which a crankshaft 70 described later is arranged to extend in a vertical direction.

  The rotary compressor 10 mainly includes a casing 20, a drive mechanism 30, a compression mechanism 40, and a crankshaft 70. The casing 20 houses the drive mechanism 30, the compression mechanism 40, and the crankshaft 70 therein. The drive mechanism 30 drives the compression mechanism 40 that compresses the refrigerant via the crankshaft 70.

(3-1-2) Detailed Description The casing 20, the drive mechanism 30, the crankshaft 70, and the compression mechanism 40 of the rotary compressor 10 will be described in detail.

(3-1-2-1) Casing The casing 20 is a vertical cylindrical container that houses the drive mechanism 30, the compression mechanism 40, and the crankshaft 70 therein.

  The casing 20 mainly includes a cylindrical cylindrical member 22 having an open top and bottom, and a bowl-shaped upper lid 24a and a lower lid 24b (see FIG. 2). The upper lid 24a is disposed at the upper end of the cylindrical member 22, and the lower lid 24b is disposed at the lower end of the cylindrical member 22 (see FIG. 2). The cylindrical member 22, and the upper lid 24a and the lower lid 24b are fixed by welding so as to maintain airtightness.

  The cylindrical member 22 is provided with a suction pipe 25 that is connected to the compression mechanism 40 and supplies low-pressure refrigerant in a refrigeration cycle from a refrigerant circuit (not shown) to the compression mechanism 40 (see FIG. 2). The upper lid 24a is provided with a discharge pipe 26 for discharging the high-pressure refrigerant in the refrigeration cycle compressed by the compression mechanism 40 to a refrigerant circuit (not shown) (see FIG. 2).

  An oil storage space 28 for storing refrigerating machine oil for lubricating the compression mechanism 40 and the like is formed in a lower portion of the casing 20 (see FIG. 2).

(3-1-2-2) Drive Mechanism The drive mechanism 30 is a mechanism that drives the compression mechanism 40. The drive mechanism 30 is disposed above the compression mechanism 40 (see FIG. 2).

  In the present embodiment, the drive mechanism 30 is an electric motor. The drive mechanism 30 mainly includes a stator 32 and a rotor 34 (see FIG. 2).

  The stator 32 is formed in an annular shape. The stator 32 has its outer peripheral surface fixed to the inner surface of the cylindrical member 22. The stator 32 is fixed to the inner surface of the cylindrical member 22 by, for example, press fitting. However, the method of fixing the stator 32 and the cylindrical member 22 is merely an example. The stator 32 may be fixed to the cylindrical member 22 by another method, for example, by welding.

  The rotor 34 is a cylindrical member. The rotor 34 is arranged inside the annularly formed stator 32 with a slight gap from the stator 32. A crankshaft 70 is inserted into the hollow portion of the rotor 34. The rotor 34 is rotated by a rotating magnetic field generated when a current flows through a winding 36 (see FIG. 2) wound around the stator 32. When the rotor 34 rotates, the crankshaft 70 also rotates, and a driving force is applied from the drive mechanism 30 to the compression mechanism 40 via the crankshaft 70.

(3-1-2-3) Crankshaft The crankshaft 70 transmits the driving force of the drive mechanism 30 to the compression mechanism 40.

  In the present embodiment, the crankshaft 70 extends vertically in the casing 20 as shown in FIG. The crankshaft 70 is inserted into a cylinder chamber 42a formed by the cylinder 42 of the compression mechanism 40. The crankshaft 70 has a marking portion M1 with an individual identifier code attached to the lower end surface 70a of the crankshaft 70 (see FIG. 4). The position where the marking portion M1 is provided is not limited to the lower end surface 70a of the crankshaft 70. However, it is preferable that the marking portion M1 is provided on a surface of the crankshaft 70 and at a place where it does not slide with other members (for example, a roller 52, a front head 44, a rear head 46, and the like, which will be described later).

  The crankshaft 70 has a main shaft portion 72 and an eccentric portion 74 eccentric with respect to the axis O of the main shaft portion 72 (see FIG. 2).

  In the crankshaft 70, an upper side of the main shaft portion 72 is inserted into a hollow portion of the rotor 34. The main shaft portion 72 is connected to the rotor 34 by, for example, shrink fitting.

  Further, the crankshaft 70 is engaged with the compression mechanism 40 below the drive mechanism 30. Specifically, the eccentric part 74 of the crankshaft 70 is fitted inside the annular roller 52 of the piston 50 of the compression mechanism 40 described later (see FIG. 2).

  The main shaft 72 of the crankshaft 70 is rotatably supported by an upper bearing 44a of the front head 44 and a lower bearing 46a of the rear head 46, which will be described later (see FIG. 2). When the drive mechanism 30 is operated and the rotor 34 rotates, the main shaft portion 72 of the crankshaft 70 rotates around the axis O. When the crankshaft 70 rotates, the eccentric part 74 of the crankshaft 70 rotates eccentrically with respect to the axis O, and revolves the roller 52 of the piston 50 of the compression mechanism 40.

  An oil pump 78 for sucking refrigerating machine oil in the oil storage space 28 is provided at a lower end of the crankshaft 70. An oil supply passage 76 through which the refrigerating machine oil sucked by the oil pump 78 flows is formed inside the crankshaft 70 (see FIG. 2). The refrigerating machine oil pumped from the oil storage space 28 by the oil pump 78 is supplied to the sliding portion between the eccentric portion 74 of the crankshaft 70 and the roller 52 and the main shaft portion 72 of the crankshaft 70 and the upper bearing portion via the oil supply passage 76. It is supplied to a sliding portion between the lower bearing 44a and the lower bearing 46a.

(3-1-2-4) Compression Mechanism The compression mechanism 40 will be described mainly with reference to FIGS. 2 and 3. FIG. 3 is a sectional view taken along the line III-III in FIG.

  The compression mechanism 40 is a mechanism that compresses the refrigerant sucked through the suction pipe 25.

  The compression mechanism 40 is arranged below the drive mechanism 30 as shown in FIG.

  2 and 3, the compression mechanism 40 mainly includes a cylinder 42, a front head 44, a rear head 46, a piston 50 including a roller 52, and a vane 54.

(3-1-2-4-1) Cylinder The cylinder 42 is a member in which a cylinder hole 42b extending through the cylinder 42 in the up-down direction is formed (see FIG. 3).

  The cylinder 42 is fixed to the inner surface of the cylindrical member 22 of the casing 20. The cylinder 42 is fixed to the inner surface of the cylindrical member 22 by, for example, welding. The cylinder 42 is disposed between the front head 44 and the rear head 46 in the vertical direction (see FIG. 2). The cylinder 42, the front head 44, and the rear head 46 are integrally connected by bolts 48 (see FIG. 2).

  The cylinder hole 42b of the cylinder 42 forms a cylinder chamber 42a. The cylinder chamber 42a is a space whose outer periphery is surrounded by the inner peripheral surface of the cylinder hole 42b (see FIG. 3). The upper part of the cylinder chamber 42a is closed by a front head 44 arranged above the cylinder 42. The lower part of the cylinder chamber 42a is closed by a rear head 46 arranged below the cylinder 42. The roller 52 of the piston 50 is disposed inside the cylinder chamber 42a (see FIG. 3). The roller 52 rotates eccentrically in the cylinder chamber 42a closed by the front head 44 and the rear head 46.

  The cylinder 42 has a suction passage 42c extending substantially horizontally from the outer peripheral side to the cylinder chamber 42a and communicating with the cylinder chamber 42a (see FIG. 3). The suction pipe 25 is inserted into the suction passage 42c. The low-pressure refrigerant in the refrigeration cycle supplied from the suction pipe 25 flows into a suction chamber 42aa described below via the suction passage 42c.

  The cylinder 42 has a vane groove 42d that slidably supports the vane 54, and a spring attached to the rear end surface 54a of the vane 54 (the side opposite to the side that contacts the outer peripheral surface 52a of the roller 52). A spring hole 42e for accommodating 56 is formed (see FIG. 3). The vane groove 42d and the spring hole 42e extend vertically through the cylinder 42. The vane groove 42d extends in the horizontal direction, opens to the cylinder chamber 42a and the spring hole 42e, and is formed so as to communicate the cylinder chamber 42a and the spring hole 42e.

  The cylinder 42 has a marking portion M2 with an individual identifier code on the upper surface 42f (see FIG. 5). The position where the marking portion M2 is provided is not limited to the upper surface 42f of the cylinder 42. However, it is preferable that the marking portion M2 is provided on a surface of the cylinder 42, at a place where the marking portion M2 does not slide with other members (for example, the roller 52 and the vane 54).

(3-1-2-4-2) Front Head The front head 44 is disposed at one end of the cylinder chamber 42a in the axial direction of the crankshaft 70. The front head 44 is disposed above the cylinder 42 as shown in FIG. 2, and blocks the upper side of the cylinder chamber 42a. The front head 44 closes the upper side of the vane groove 42d and the spring hole 42e.

  The front head 44 is formed with a discharge port 44c (see FIG. 3) extending vertically through the front head 44 and communicating with a compression chamber 42ab described later formed in the cylinder chamber 42a. The refrigerant compressed in the compression chamber 42ab is discharged from the compression chamber 42ab through the discharge port 44c. In FIG. 3, a discharge port 44c formed in the front head 44, which cannot be seen in the direction of arrows III-III in FIG. 2 (that is, does not originally appear in the sectional view of FIG. 3), is indicated by a two-dot chain line. It is shown for convenience.

  A cylindrical upper bearing portion 44 a that rotatably supports the crankshaft 70 is formed at an upper portion of the front head 44.

  The front head 44 has a marking portion M3 with an individual identifier code on the upper surface 44b (see FIG. 6). The position where the marking portion M3 is provided is not limited to the upper surface 44b of the front head 44. However, it is preferable that the marking portion M3 is provided on a surface of the front head 44, at a place where the marking portion M3 does not slide with other members (for example, the roller 52, the vane 54, the crankshaft 70, and the like).

(3-1-2-4-3) Rear Head The rear head 46 is disposed at one end (an end opposite to the front head 44) of the cylinder chamber 42a in the axial direction of the crankshaft 70. The rear head 46 is disposed below the cylinder 42 as shown in FIG. 2 and closes a lower side of the cylinder chamber 42a. Further, the rear head 46 closes the lower side of the vane groove 42d and the spring hole 42e.

  At the lower part of the rear head 46, a cylindrical lower bearing portion 46a that rotatably supports the crankshaft 70 is formed.

  The rear head 46 has a marking section M4 with an individual identifier code on the lower surface 46b (see FIG. 7). The position where the marking portion M4 is provided is not limited to the lower surface 46b of the rear head 46. However, it is preferable that the marking portion M4 be provided on the surface of the rear head 46, at a location that does not slide with other members (for example, the roller 52, the vane 54, the crankshaft 70, and the like).

(3-1-2-4-4) Piston The piston 50 mainly includes an annular roller 52.

  8 and 9, the roller 52 has an outer peripheral surface 52a, an inner peripheral surface 52b, an upper end surface 52d, and a lower end surface 52e. The roller 52 has a stepped portion 52c at the boundary between the inner peripheral surface 52b and the upper end surface 52d, and a stepped portion 52f at the boundary between the inner peripheral surface 52b and the lower end surface 52e.

  The roller 52 is disposed in the cylinder chamber 42a. The eccentric part 74 of the crankshaft 70 is fitted inside the roller 52. In other words, the roller 52 is mounted outside the eccentric part 74 of the crankshaft 70. The roller 52 rotates eccentrically in the cylinder chamber 42a when the crankshaft 70 rotates.

  The piston 50 has on its surface a marking portion M5 to which an individual identifier code is attached (see FIG. 8).

  The marking portion M5 is provided on a surface of the piston 50 other than a sliding surface with the cylinder 42 and a sliding surface with the crankshaft 70. That is, the marking portion M5 is provided on a surface other than the outer peripheral surface 52a that is in sliding contact with the inner peripheral surface of the cylinder hole 42b of the cylinder 42 and the inner peripheral surface 52b that is in sliding contact with the eccentric portion 74 of the crankshaft 70. Particularly preferably, the marking portion M5 is provided on the surface of the piston 50 and on a non-sliding portion that does not slide with other members.

  For example, in the present embodiment, the piston 50 has a marking portion M5 on the upper end surface 52d of the roller 52 facing the front head 44 or on the lower end surface 52e of the roller 52 facing the rear head 46. The height of the roller 52 (the length of the roller 52 in the vertical direction) is adjusted so that the roller 52 can be eccentrically rotated along the inner peripheral surface of the cylinder hole 42b in the space between the front head 44 and the rear head 46. It is designed to be slightly smaller than the distance between the lower surface of 44 and the upper surface of rear head 46. Therefore, by providing the marking portions M5 on the end surfaces 52d and 52e of the roller 52, the marking portions M5 having a relatively large area can be provided on the piston 50 while suppressing adverse effects on the operation efficiency of the rotary compressor 10.

  A gap is easily secured between the front head 44 disposed at the upper end of the cylinder chamber 42a and the upper end surface 52d of the roller 52 under the influence of gravity. In other words, the front head 44 arranged at the upper end of the cylinder chamber 42a and the upper end surface 52d of the roller 52 do not easily slide directly. Therefore, when the marking portion M5 is provided on the upper end surface 52d of the roller 52 facing the front head 44 (see FIG. 8), the marking portion M5 attached to the piston 50 has an adverse effect on the operating efficiency of the rotary compressor 10. Is particularly easily suppressed.

  However, the position of the marking portion M5 is not limited to the end surfaces 52d and 52e of the roller 52. For example, as shown in FIG. 10, the piston 50 is marked on a stepped portion 52c provided at the boundary between the upper end surface 52d of the roller 52 and the inner peripheral surface 52b (formed in an annular shape on the inner edge of the upper end surface 52d). It may have a part M5. The stepped portion 52 c is formed on the upper end surface 52 d of the roller 52 facing the front head 44 so as to be recessed in a direction away from the front head 44. The stepped portion 52c is formed on the inner peripheral surface 52b of the roller 52 facing the crankshaft 70 so as to be recessed in a direction away from the crankshaft 70. In FIG. 10, the marking portion M5 is provided on the upper surface 52ca of the stepped portion 52c (see FIG. 9). Instead, the marking portion M5 is provided on the inner side surface 52cb of the stepped portion 52c (see FIG. 9). May be provided.

  The surface (the upper surface 52ca and the inner side surface 52cb) of the stepped portion 52c is a surface that is recessed in a direction away from the front head 44 and the crankshaft 70 and does not slide with the front head 44 and the crankshaft 70. Therefore, the adverse effect of the marking portion M5 attached to the piston 50 on the operation efficiency of the rotary compressor 10 is easily suppressed.

  Note that the piston 50 is not provided at the stepped portion 52c of the roller 52, but is provided at the boundary between the lower end surface 52e and the inner peripheral surface 52b of the roller 52 (formed in an annular shape at the inner edge of the lower end surface 52e). The portion 52f may have a marking portion M5.

  Also, as shown in FIG. 11, the piston 50 has a marking portion M5 formed in a concave portion 52da (a concave portion 52da different from the stepped portion 52c) formed on the upper end surface 52d of the roller 52 so as to be concave in a direction away from the front head 44. May be provided. Further, the piston 50 may have a marking portion M5 in a concave portion (not shown) different from the stepped portion 52f formed on the lower end surface 52e of the roller 52 so as to be recessed away from the rear head 46.

  In addition, instead of the stepped portion 52c, the roller 52 is formed at the boundary between the inner peripheral surface 52b and the inner edge of the upper end surface 52d so as to be recessed in a direction away from the front head 44 and in a direction away from the crankshaft 70. A chamfered portion 52c 'may be formed (see FIG. 12). And piston 50 may have marking part M5 in chamfer part 52c '. Similarly, instead of the stepped portion 52f, the roller 52 is recessed at the boundary between the inner peripheral surface 52b and the inner edge of the lower end surface 52e in a direction away from the rear head 46 and in a direction away from the crankshaft 70. May be formed (see FIG. 12). And piston 50 may have marking part M5 in chamfer part 52f '.

(3-1-2-4-5) Vane The vane 54 contacts the outer peripheral portion (outer peripheral surface 52a) of the roller 52, partitions the space formed by the cylinder 42 and the roller 52, and forms a compression chamber 42ab and a suction chamber. 42aa. More specifically, the vane 54 is in contact with the outer peripheral surface 52a of the roller 52, and is formed by the inner peripheral surface of the cylinder hole 42b, the outer peripheral surface 52a of the roller 52, the lower surface of the front head 44, and the upper surface of the rear head 46. It is a member that partitions the enclosed space and partitions it into a compression chamber 42ab and a suction chamber 42aa.

  The vane 54 is housed in a vane groove 42d formed in the cylinder 42. The vane 54 is slidably supported by the vane groove 42d so that it can move in a direction into the cylinder chamber 42a or in a direction out of the cylinder chamber 42a.

  A spring 56 disposed in a spring hole 42e communicating with the vane groove 42d is attached to the rear end surface 54a of the vane 54 (the side opposite to the front end surface 54c of the vane 54 in contact with the outer peripheral surface 52a of the roller 52) ( (See FIG. 3). The vane 54 is urged toward the roller 52 by an elastic force of a spring 56 or the like. As a result, when the crankshaft 70 rotates and the roller 52 rotates eccentrically, the vane 54 reciprocates in the vane groove 42d according to the rotation of the crankshaft 70 with the front end surface 54c in contact with the outer peripheral surface 52a of the roller 52. I do.

  The vane 54 has on its surface a marking portion M6 to which an individual identifier code is attached.

  The marking portion M6 is provided on the surface of the vane 54, other than the sliding surface with the vane groove 42d and the sliding surface with the roller 52. That is, the marking portion M6 is provided on a surface of the vane 54 other than the side surface 54b that is in sliding contact with the vane groove 42d and the front end surface 54c that is in sliding contact with the outer peripheral surface 52a of the roller 52. Preferably, the marking portion M6 is provided on the surface of the vane 54 and on a non-sliding portion that does not slide with other members. Particularly preferably, the vane 54 has a marking portion M6 on a rear end surface 54a arranged on the side opposite to the front end surface 54c of the vane 54 that contacts the roller 52 (see FIG. 13).

(3-1-3) Operation Operation The operation operation of the rotary compressor 10 will be described.

  In the rotary compressor 10, when the drive mechanism 30 is operated and the rotor 34 rotates, the crankshaft 70 rotates. As a result, the roller 52 of the piston 50 (the roller 52 attached to the eccentric part 74) in which the eccentric part 74 of the crankshaft 70 is fitted inside rotates eccentrically along the inner peripheral surface of the cylinder hole 42b of the cylinder 42. The refrigerant flows from the suction pipe 25 into the suction chamber 42aa by the movement of the eccentrically rotating roller 52. In the compression chamber 42ab, the refrigerant is compressed by the movement of the eccentrically rotating roller 52, and when the pressure of the refrigerant reaches a predetermined pressure, a discharge valve (not shown) provided in the discharge port 44c is opened, and the discharge port 44c is opened. The refrigerant is discharged from. The refrigerant discharged from the discharge port 44c flows out of the rotary compressor 10 through the discharge pipe 26.

(3-2) Second Compressor A second embodiment of the rotary compressor 310 will be described with reference to the drawings.

  The rotary compressor 310 of the second embodiment is the same as the rotary compressor 10 of the first embodiment except that the compression mechanism 340 is different from the compression mechanism 40. Therefore, for the sake of simplicity, the differences between the rotary compressor 310 and the rotary compressor 10 will be mainly described, and the description of the points of coincidence between the rotary compressor 310 and the rotary compressor 10 will be basically omitted.

(3-2-1) Detailed Description of Compression Mechanism FIG. 14 is a longitudinal sectional view of the rotary compressor 310. FIG. 15 is a sectional view taken along the line XV-XV in FIG. FIG. 16 is a plan view of the piston 350 of the compression mechanism 340 as viewed from above. FIG. 17 is a sectional view taken along the line XVII-XVII in FIG. FIG. 18 is a perspective view of the piston 350. 14 to 18, the same components as those of the rotary compressor 10 of the first embodiment are denoted by the same reference numerals as those of the first embodiment.

  The compression mechanism 340 is a mechanism that compresses the refrigerant sucked through the suction pipe 25, similarly to the compression mechanism 40.

  The compression mechanism 340 is disposed below the drive mechanism 30 as shown in FIG.

  The compression mechanism 340 mainly includes a cylinder 342, a front head 44, a rear head 46, and a piston 350 including a roller 352 and a blade 354 formed integrally, as shown in FIGS.

  Hereinafter, the cylinder 342 and the piston 350 will be described.

  Since the front head 44 and the rear head 46 are the same as in the first embodiment, the description will be omitted.

(3-2-1-1) Cylinder The cylinder 342 is a member in which a cylinder hole 42b extending vertically through the cylinder 342 is formed (see FIG. 15).

  The cylinder 342 is fixed to the inner surface of the cylindrical member 22 of the casing 20. The cylinder 342 is fixed to the inner surface of the cylindrical member 22 by, for example, welding. The cylinder 342 is disposed between the front head 44 and the rear head 46 in the vertical direction (see FIG. 14). The cylinder 342, the front head 44, and the rear head 46 are integrally connected by bolts 48 (see FIG. 14).

  The cylinder hole 42b of the cylinder 342 forms a cylinder chamber 42a (see FIG. 15). The cylinder chamber 42a is a space whose outer periphery is surrounded by the inner peripheral surface of the cylinder hole 42b. The upper part of the cylinder chamber 42a is closed by a front head 44 arranged above the cylinder 342. The lower part of the cylinder chamber 42a is closed by a rear head 46 disposed below the cylinder 342. The roller 352 of the piston 350 is disposed inside the cylinder chamber 42a (see FIG. 15). The roller 352 rotates eccentrically in the cylinder chamber 42a closed by the front head 44 and the rear head 46.

  The cylinder 342 has a suction passage 42c extending substantially horizontally from the outer peripheral side to the cylinder chamber 42a and communicating with the cylinder chamber 42a (see FIG. 15). The suction pipe 25 is inserted into the suction passage 42c. The low-pressure refrigerant in the refrigeration cycle supplied from the suction pipe 25 flows into a suction chamber 42aa described below via the suction passage 42c.

  A bush holding hole 342d and a blade receiving hole 342e are formed in the cylinder 342 (see FIG. 15). The bush holding hole 342d and the blade receiving hole 342e extend vertically through the cylinder 342. The bush holding hole 342d is disposed adjacent to the cylinder hole 42b and communicates with the cylinder chamber 42a (see FIG. 15). The blade housing hole 342e is arranged at a position adjacent to the bush holding hole 342d so as to sandwich the bush holding hole 342d between the blade housing hole 342e and the cylinder hole 42b (see FIG. 15). The blade accommodation hole 342e communicates with the bush holding hole 342d. The bush holding hole 342d swingably holds a pair of substantially semi-cylindrical bushes 356 inserted therein (see FIG. 15). The bush holding hole 342d and the blade accommodating hole 342e are examples of a blade entrance space where the blade 354 enters and exits.

  The bush 356 held in the bush holding hole 342d slidably supports the blade 354. The blade 354 is swingably supported by the bush 356. The blade 354 enters and exits the bush holding hole 342d and the blade housing hole 342e according to the rotation of the crankshaft 70.

  The cylinder 342 has a marking portion M2 having an individual identifier code on the upper surface 42f, similarly to the cylinder 42 of the first embodiment. It is to be noted that the position where the marking portion M2 is provided is not limited to the upper surface 42f of the cylinder 342, as in the cylinder 42 of the first embodiment.

(3-2-1-2) Piston The piston 350 includes an annular roller 352 and a blade 354 formed integrally with the roller 352 (FIGS. 16 and 17).

  16 and 17, the roller 352 has an outer peripheral surface 352a, an inner peripheral surface 52b, an upper end surface 52d, and a lower end surface 52e. The roller 52 has a stepped portion 52c at the boundary between the inner peripheral surface 52b and the upper end surface 52d, and a stepped portion 52f at the boundary between the inner peripheral surface 52b and the lower end surface 52e.

  The blade 354 is a member extending from the outer peripheral surface 352 a of the roller 352 in a direction away from the roller 352. The blade 354 has a rear end surface 354a and a side surface 354b, as shown in FIGS. The rear end face 354a is an end face arranged on the side opposite to the side connected to the roller 352. The rear end surface 354a is disposed in the blade receiving hole 342e. The side surface 354b is a vertical surface extending from the roller 352. The side surface 354b includes a surface that is sandwiched between the pair of bushes 356 and slides with the bush 356.

  The roller 352 is disposed in the cylinder chamber 42a. The eccentric part 74 of the crankshaft 70 is fitted inside the roller 352. In other words, the roller 352 is mounted outside the eccentric part 74 of the crankshaft 70. The roller 352 rotates eccentrically in the cylinder chamber 42a when the crankshaft 70 rotates.

  The blade 354 is a member that partitions a space formed by the cylinder 342 and the roller 352 and partitions the space into a compression chamber 42ab and a suction chamber 42aa. More specifically, the blade 354 partitions a space formed by the inner peripheral surface of the cylinder hole 42b, the outer peripheral surface 52a of the roller 352, the lower surface of the front head 44, and the upper surface of the rear head 46. It is a member that partitions into a compression chamber 42ab and a suction chamber 42aa. The blade 354 is slidably supported by a bush 356 arranged in a bush holding hole 342d formed in the cylinder 342. Further, the blade 354 is swingably supported by a bush 356 arranged in the bush holding hole 342d. The blade 354 enters and exits the blade entry / exit space (the bush holding hole 342d and the blade accommodation hole 342e) formed in the cylinder 342 in accordance with the rotation of the crankshaft 70.

  The piston 350 has on its surface a marking portion M5 to which an individual identifier code is attached (see FIG. 18). The position where the marking portion M5 is provided will be described.

  The marking portion M5 is provided on the surface of the piston 350 other than the sliding surface with the cylinder 342, the sliding surface with the crankshaft 70, and the sliding surface with the bush 356. That is, the marking portion M5 is provided so as to avoid the inner peripheral surface 52b of the roller 352 that is in sliding contact with the eccentric portion 74 of the crankshaft 70. In addition, the marking portion M5 is provided so as to avoid a portion of the side surface 354b of the blade 354 (the vertical surface of the blade 354 extending from the outer peripheral surface 352a of the roller 352) that comes into sliding contact with the bush 356. The marking portion M5 is provided so as to avoid a portion of the outer peripheral surface 352a of the roller 352 that slides on the inner peripheral surface of the cylinder hole 42b. Preferably, the marking portion M5 is provided on the surface of the piston 350 and on a non-sliding portion that does not slide with other members.

  The marking unit M5 is provided at, for example, but not limited to, the following places.

  1) A rear end surface 354a of the blade 354 (an end surface disposed in the blade receiving hole 342e).

  The rear end surface 354a of the blade 354 (see FIGS. 15 to 17) is arranged at a distance from both the cylinder 342 and the bush 356, and does not come into contact with other components. Therefore, preferably, the marking portion M5 is provided on the rear end surface 354a of the blade 354. By providing the marking portion M5 on the rear end surface 354a of the blade 354, the marking portion M5 having a relatively large area can be provided on the piston 350. In other words, by providing the marking portion M5 on the rear end surface 354a of the blade 354, a code having a relatively large information amount can be attached to the piston 350.

  2) End surfaces 52d and 52e of the roller 352 (see FIGS. 16 and 17).

  The advantage of providing the marking portion M5 on the end surfaces 52d and 52e of the roller 352, preferably on the upper end surface 52d of the roller 352 is as described in the first embodiment.

  3) Stepped portion 52c or stepped portion 52f of roller 352 (see FIGS. 16 and 17).

  The advantage of providing the marking portion M5 on the stepped portion 52c or the stepped portion 52f of the roller 352 is as described in the first embodiment. Note that, as described in the first embodiment, the marking portion M5 is provided with a concave portion different from the stepped portions 52c and 52f formed on the upper end surface 52d or the lower end surface 52e of the roller 352, the stepped portion 52c or the stepped portion. It may be provided on a chamfer provided in place of the portion 52f.

  4) The outer peripheral surface 352a of the roller 352, which does not slide on the inner peripheral surface of the cylinder hole 42b of the cylinder 342.

  In the rotary compressor 10 of the first embodiment, since the roller 52 rotates on its own, the entire outer peripheral surface 52 a of the roller 52 slides on the inner peripheral surface of the cylinder hole 42 b of the cylinder 42.

  On the other hand, in the rotary compressor 310 of the present embodiment, due to its structure, the outer peripheral surface 352a of the roller 352 has a portion that does not slide with the cylinder 342 (the inner peripheral surface of the cylinder hole 42b). The portion of the outer peripheral surface 352a that does not slide with the cylinder 342 includes, for example, a region near a connection portion of the roller 352 with the blade 354. In addition, in a portion of the outer peripheral surface 352a that does not slide with the cylinder 342, for example, a portion facing the suction passage 42c of the cylinder 342 during operation of the rotary compressor 310 and in the vicinity thereof are arc-shaped outer peripheral surfaces 352a. And a first portion 352aa provided so as to be recessed inside the roller 352 (see FIGS. 16 and 18). Although the processing method is not limited, the first portion 352aa is, for example, a portion formed by cutting a circular arc-shaped outer peripheral surface 352a into a planar shape. The portion of the outer peripheral surface 352a that does not slide with the cylinder 342 is, for example, a portion that passes through the vicinity of a discharge port 44c provided in the front head 44 during operation of the rotary compressor 310 and has an arc-shaped outer periphery. It includes a second portion 352ab provided so as to be recessed inside the roller 352 with respect to the surface 352a (see FIGS. 16 and 18). Although the processing method is not limited, the second portion 352ab is, for example, a portion formed by cutting a circular arc-shaped outer peripheral surface 352a into a flat shape.

(4) Method for Managing Compressor Parts Next, an example of a method for managing compressor parts will be described with reference to the flowchart in FIG. The components to be managed by the management method (managed components) are components having the marking units M1 to M6. That is, in the rotary compressor 10, the crankshaft 70, the cylinder 42, the front head 44, the rear head 46, the piston 50, and the vane 54 are managed components. In the rotary compressor 310, the crankshaft 70, the cylinder 342, the front head 44, the rear head 46, and the piston 350 are components to be managed.

  In step S1 of the compressor management method in FIG. 19, a code (identifier code) of information relating to an individual identifier is attached to each managed component of the compressor. Preferably, in step S1, an identifier code is attached to the surface of each component to be managed of the compressor. More preferably, in step S1, an identifier code is attached to the positions of the above-described marking portions M1 to M6 of each managed component of the compressor. The identifier code is attached to the managed component at the manufacturing factory of the managed component, for example. However, the identifier code may be assigned at a location other than the manufacturing plant of the managed component, for example, at a compressor assembly plant to which the managed component is delivered.

  Here, the individual identifier is a character string or number unique to each managed component, which is used to distinguish managed components. Here, the code of the information on the individual identifier is obtained by converting the individual identifier into a two-dimensional code. However, the present invention is not limited to this, and the code of the information on the individual identifier may be a code obtained by converting the individual identifier into a one-dimensional code. Further, the code of the information relating to the individual identifier may be a character string or a number itself of the individual identifier that can be read by a person.

  Further, the code of the information relating to the individual identifier may not be the code of the individual identifier itself. For example, a character string or a number different from the individual identifier used for reading the individual identifier stored in the storage device 124 is used. Code.

  The one-dimensional code used for the code related to the individual identifier information includes JAN13, JAN8, UPC A, UPCE, interleaved 2of5, ITF14, NW7 (Codabar), Code39, Code128, GS1-128, and GS1 data bar. And so on. QR codes (registered trademark), SQRC (registered trademark), SP codes, vericodes, maxicodes, CP codes, DataMatrix, Code1, AztecCode, intar code, It includes matrix-type codes such as card e, chameleon codes, and stack-type codes such as PDF417, Code49, Code16K, Codablock, SuperCode, UltraCode, RSS Composite, and AztecMesa.

  In the present embodiment, as described above, the individual identifier is converted into a two-dimensional code capable of recording a relatively large amount of information in a small area and attached to the managed component. Note that, although not limited, the marking portions M1 to M6 provided on the managed component have a square shape (for example, 4.5 mm × 4.5 mm) or a rectangular shape (for example, 2.0 mm × 6.8 mm). , 1.5 mm × 5.1 mm).

  From the viewpoint of the traceability of the managed component, the individual identifier code is preferably stamped on the managed component so that the individual identifier code does not easily disappear. Various marking methods such as a method of shaving or partially oxidizing the surface of a component with a laser, a method of using electrochemical etching, and a method of punching a marking pin may be used for marking the individual identifier code. .

  However, depending on the purpose of providing the individual identifier code, a method such as printing a code on the managed component using an ink jet printer, attaching a label printed with the individual identifier code to the managed component, or the like, may be applied to the managed component. It may be selected as a method for attaching an individual identifier code.

  Next, in step S2, a dimensional measurement of a predetermined location of each managed component (for example, a location where it is desirable for the managed component to precisely manage dimensions) is performed. For example, the outer diameter of the main shaft portion 72 and the outer diameter of the eccentric portion 74 for the crankshaft 70, the height of the cylinders 42 and 342 and the inner diameter of the cylinder hole 42b for the cylinders 42 and 342, For the front head 44, the inner diameter of the shaft hole of the upper bearing portion 44a, for the rear head 46, the inner diameter of the shaft hole of the lower bearing portion 46a, for the piston 50, the height (length in the vertical direction) of the roller 52 and the roller 52 Is the width of the vane 54 (the distance between the two side surfaces 54b) for the vane 54, the height (length in the vertical direction) of the roller 352 for the piston 350, and the inner and outer diameters of the roller 352. , And the width of the blade 354 (the distance between the two side surfaces 354b) is measured.

  Next, in step S3, the reader 110 reads the individual identifier code assigned to the managed component whose dimensions have been measured in step S2. The reader 110 transmits the read code (the image of the acquired code) to the computer 120.

  Next, in step S4, the identifier acquiring unit 122a performs image processing and decoding of the image of the two-dimensional code read by the reader 110 (transmitted from the reader 110), and acquires an individual identifier.

  Next, in step S5, information of the dimension measurement value measured in step S2 is input to the computer 120. Then, the information of the dimension measurement value input to the computer 120 is stored in the component information database 124a of the storage device 124 of the computer 120 in association with the individual identifier acquired in step S4.

  The information of the dimension measurement value may be, for example, the dimension measurement value itself, or a value of a difference between the dimension measurement value and a design dimension of a measurement point of the dimension.

  Information on the dimension measurement value is input to the computer 120 from an input device such as a keyboard. However, the present invention is not limited to this, and a dimension measurement value transmitted by a dimension measuring device (not shown) may be input to the computer 120.

  In step S5, in addition to the dimension measurement value of the management target component, various information (for example, a manufacturing date, a type of the management target component, a manufacturing line name, a manufacturer name, manufacturing conditions, etc.) regarding the management target component is input to the computer 120. The information may be stored in the component information database 124a in association with the individual identifier. For example, in the component information database 124a, as illustrated in FIG. 20, the individual identifier, the type of the managed component, the manufacturing date, the manufacturing line name, and the dimension measurement value are stored in association with each other. In another embodiment, at the timing independent of the flowchart of FIG. 19 (for example, at the time of manufacturing a managed component), various information (excluding the dimension measurement value) and the individual identifier of the managed component are stored in the component information database 124a. They may be stored in association with each other.

  The above steps (steps S1 to S5) are executed mainly for the purpose of recording information (including measured dimensions) of the managed component. On the other hand, the following steps are executed mainly for the purpose of utilizing the information (including the dimension measurement value) of the managed component.

  In step S6, the transmission unit 122e stores the individual identifier of the managed component and the information of the dimension measurement value of the managed component stored in the component information database 124a of the storage device 124 (that is, stored in step S5). Is transmitted to the outside of the management system 100 (e.g., a manufacturing device 400 for a managed component or a production management computer (not shown) located in a manufacturing factory for the managed component). . By transmitting (feeding back) the individual identifier and the dimension measurement value of the managed component to the manufacturing device 400 of the managed component, the manufacturing device 400 grasps whether the processing accuracy of the managed component is appropriate. However, this can be used for improving the processing accuracy of the manufacturing apparatus 400 and the like.

  The transmission of the information on the dimension measurement values of the management target component may be performed as needed, and step S6 may be omitted.

  In step S7, the individual identifier code assigned to the managed component is read by the reader 110. The reader 110 transmits the read code (the image of the acquired code) to the computer 120.

  Next, in step S8, the identifier acquiring unit 122a performs image processing and decoding of the image of the two-dimensional code read by the reader 110 (transmitted from the reader 110), and acquires an individual identifier.

  Next, in step S9, based on the individual identifier acquired by the identifier acquiring unit 122a, the component information acquiring unit 122b reads the individual identifier code (read by the reader 110 in step S7) from the component information database 124a of the storage device 124. Read out (acquire) the dimension measurement value of the managed component having Specifically, the component information acquiring unit 122b searches for information in the component information database 124a using the individual identifier acquired by the identifier acquiring unit 122a as a keyword, and obtains a dimension associated with the individual identifier stored in the component information database 124a. Reads information on measured values. In step S9, the component information acquisition unit 122b searches for information in the component information database 124a using the individual identifier acquired by the identifier acquisition unit 122a as a keyword, and obtains a dimension associated with the individual identifier from the component information database 124a. It may be configured to read out various kinds of information on the managed component other than the measured values.

  Next, how the dimension measurement values obtained through the above-described steps S7 to S9 are used for component management will be described below with reference to specific examples.

(A) Use of Dimension Measurements at the Time of Manufacture of Rotary Compressor When the rotary compressors 10 and 310 are manufactured, the management system 100 uses, for example, a code (marking) on the information of the individual identifier attached to the managed component as follows. The parts of the rotary compressors 10 and 310 are managed using the codes of the sections M1 to M6).

  When the management system 100 is used at the time of manufacturing the rotary compressor 10, the reader 110 is installed, for example, at an assembly work place of the rotary compressors 10, 310.

  At the assembly work place, the codes of the marking parts M1 to M6 of the managed component (before being incorporated into the rotary compressors 10 and 310) are read by the reader 110, and the reader 110 reads the image of the read two-dimensional code into the computer 120. (Step S7).

  When the computer 120 acquires the image of the two-dimensional code, the identifier acquiring unit 122a performs image processing and decoding of the image of the two-dimensional code read by the reader 110, and acquires an individual identifier (step S8).

  Next, the component information acquisition unit 122b reads the dimension measurement value associated with the individual identifier from the component information database 124a of the storage device 124 based on the individual identifier acquired by the identifier acquisition unit 122a (Step S9). Then, the component information acquisition unit 122b stores the acquired dimension measurement value in the storage device 124 as the acquired dimension measurement value.

  Here, steps S7 to S9 are repeatedly executed. For example, when the management system 100 manages the components of the rotary compressor 10, a plurality (for example, 30 each) of the crankshaft 70, the cylinder 42, the front head 44, the rear head 46, the piston 50, and the vane 54 are provided. On the other hand, steps S7 to S9 are performed. Then, for each of the thirty crankshafts 70, cylinders 42, front head 44, rear head 46, piston 50 and vane 54, the dimension measurement values acquired by the component information acquisition unit 122b are stored in the storage device 124 as acquired dimension measurement values. . Further, for example, when the management system 100 manages the components of the rotary compressor 310, a plurality (for example, 30 each) of the crankshaft 70, the cylinder 342, the front head 44, the rear head 46, and the piston 350 are provided. On the other hand, a code reading step and a dimension measurement value acquiring step are executed. Then, for each of the thirty crankshafts 70, cylinders 342, front head 44, rear head 46, and piston 350, the dimension measurement values acquired by the component information acquisition unit 122b are stored in the storage device 124 as acquired dimension measurement values.

  After that, the combination determination unit 122c determines how to combine the components using the acquired dimension measurement values of the plurality of managed components stored in the storage device 124.

  The process of determining the combination of components performed by the combination determination unit 122c will be described, taking as an example the case where the compressor to be managed by the management system 100 is the rotary compressor 10. The combination determining unit 122c stores, for example, a predetermined number (for example, 30) of acquired dimension measurement values of the crankshaft 70, the cylinder 42, the front head 44, the rear head 46, the piston 50, and the vane 54 in the storage device 124. Then, the process of determining the combination of parts is executed. For example, the combination determining unit 122c uses the acquired dimension measurement values stored in the storage device 124 and according to a predetermined algorithm, such that the size of the gap or step between the components falls within a predetermined numerical range. Determine the combination of parts. Although not limited, the size of the gap generated between the components to be managed includes, for example, the gap generated between the roller 52 and the eccentric part 74 of the crankshaft 70 inserted into the roller 52 (that is, the roller 52). Of the eccentric part 74). Although not limited, the size of the step generated between the components includes, for example, a step in the height direction (difference between the height of the cylinder 42 and the height of the roller 52) generated between the cylinder 42 and the roller 52. Including.

  If the combination is determined so that the size of the gap or step between the components becomes an optimal value (so that the value of the gap or step becomes a particularly desirable value within a predetermined numerical range), the combination is used. There is a high possibility that some parts cannot be generated. Therefore, the combination determination unit 122c minimizes the occurrence of components that cannot be used in the combination and minimizes the occurrence of components that cannot be used in the combination. It is preferable to determine the combination of parts according to a predetermined algorithm.

  The output unit 122d outputs a combination result of the components determined by the combination determination unit 122c. The output unit 122d outputs the combination result of the components determined by the combination determination unit 122c to a display, a printer, or the like as an output device of the computer 120. Alternatively, instead of the output unit 122d, the transmission unit 122e may transmit a combination result of the components determined by the combination determination unit 122c to an external display device or the like via a communication device.

  By using the codes attached to the components to be managed in this manner, the re-measurement of the component dimensions is not performed at the assembly work site of the rotary compressor 10, and the occurrence of components that cannot be used in combination is suppressed efficiently. Assembly work can proceed.

  When it is desired to leave the combination result of components determined by the combination determination unit 122c (what dimensions have been combined) as data, the component information database 124a stores the individual identifier of the managed component, Preferably, the managed component is stored in association with the identifier of the compressor in which the managed component is used (see FIG. 20).

(B) Use of Dimension Measurements After Assembling of Rotary Compressor The management system 100, after assembling the rotary compressors 10, 310, includes a code (marking) relating to information of an individual identifier attached to a component to be managed as follows, for example. The parts of the rotary compressors 10 and 310 are managed using the codes of the sections M1 to M6).

  After assembling the rotary compressor 10, the management system 100 is used for the purpose of, for example, maintenance and product management as follows. When the management system 100 is used only for managing the rotary compressor 10 after assembly, the computer 120 may not have the function as the above-described combination determination unit 122c.

  When the management system 100 is used for the purpose of maintenance, product management, and the like after the assembly of the rotary compressor 10, the reader 110 is installed, for example, in a workplace that performs maintenance, product management, and the like of the rotary compressor 10. At the work place, the identifier codes of the marking portions M1 to M6 of the managed component removed from the rotary compressor 10 are read by the reader 110, and the reader 110 transmits the read two-dimensional code image to the computer 120 (step S7).

  When the computer 120 acquires the image of the two-dimensional code, the identifier acquiring unit 122a performs image processing and decoding of the image of the two-dimensional code read by the reader 110, and acquires an individual identifier (step S8).

  Next, the component information acquisition unit 122b reads the dimension measurement value associated with the individual identifier from the component information database 124a of the storage device 124 based on the individual identifier acquired by the identifier acquisition unit 122a (Step S9).

  The output unit 122d outputs the dimension measurement value read by the component information acquisition unit 122b. For example, the output unit 122d outputs a dimension measurement value read by the component information acquisition unit 122b for a set of component groups used in a certain rotary compressor 10 (in other words, for all of the marking units M1 to M6). . The output unit 122d outputs the dimension measurement value acquired by the component information acquisition unit 122b to a display, a printer, or the like as an output device of the computer 120. Alternatively, instead of the output unit 122d, the transmission unit 122e may transmit the dimension measurement value acquired by the component information acquisition unit 122b to an external display device or the like via a communication device.

  By using the information given to the marking portions M1 to M6 in this way, it is possible to quickly grasp what size component should be used as a replacement component when, for example, replacing a component. Further, by using the information given to the marking portions M1 to M6 in this way, it is possible to quickly grasp what size combination of components has been used in the rotary compressor 10 in which an abnormality has occurred. . In addition, by re-measuring the dimensions of the component of the rotary compressor 10 in which the abnormality has occurred, and comparing this with the dimension measurement values read from the marking portions M1 to M6, what degree of deformation or wear occurs in which component Can be quickly grasped.

  Further, the component information database 124a stores various information of the managed component in association with the individual identifier, and the component information acquisition unit 122b is configured to also read the various information of the managed component based on the individual identifier. For example, it is possible to quickly grasp under what conditions the component in which the abnormality has occurred is manufactured.

(5) Features (5-1)
The management system 100 according to the above embodiment is a management system 100 that manages components (managed components) of a compressor. The management system 100 includes a storage device 124 as an example of a storage unit, a reader 110 as an example of a reading unit, an identifier obtaining unit 122a as an example of an obtaining unit, and a component information obtaining unit 122b as an example of a reading unit. And. The storage device 124 stores the individual identifier of the managed component and the information of the dimension measurement value of the managed component in association with each other. The reader 110 reads a code (identifier code) related to the information of the individual identifier of the component attached to the component to be managed. The identifier acquiring unit 122a acquires an individual identifier from the identifier code read by the reader 110. The component information acquisition unit 122b reads the information of the dimension measurement value from the storage device 124 based on the individual identifier acquired by the identifier acquisition unit 122a.

  Here, since the dimension measurement value of the management target component can be read out from the information of the individual identifier attached to the management target component, the component can be read out without performing re-measurement or the like as necessary when assembling the compressor. Can be obtained quickly.

  In addition, since the reader 110 reads the code related to the information of the individual identifier attached to the managed component, the possibility that a mistake in dimensional measurement value of a certain component with dimensional measurement value of another component can be reduced. .

  Also, here, even when a plurality of dimension measurement values are managed for the management target component, they can be managed collectively by one identifier code.

(5-2)
In the management system 100 of the present embodiment, the component information acquisition unit 122b performs an information search using the individual identifier as a keyword, and reads out the information of the dimension measurement value associated with the individual identifier stored in the storage device 124.

  Here, the information of the dimension measurement value can be quickly read out from a large number of data regarding the managed component.

(5-3)
The management system 100 of the present embodiment includes a transmission unit 122e that transmits information in which the individual identifier of the managed component and the information of the dimension measurement value of the managed component stored in the storage device 124 are associated with each other.

  Here, it is possible to transmit information in which the individual identifier of the component to be managed and the information on the dimension measurement value of the component are transmitted. For example, the information is fed back to the manufacturing apparatus 400 that processes the component, thereby processing the component. It can be used to improve accuracy and reduce the cost of cutting tools.

(5-4)
The management method according to the present embodiment is a management method for managing components of a compressor. The management method includes the steps of: attaching a code relating to information of an individual identifier to a component to be managed (managed component); measuring a dimension of the managed component; information of a measured value of the managed component; And storing the individual identifiers in the storage device 124 in association with each other.

  Here, a code related to the information of the individual identifier is attached to the managed component, and the information of the dimension measurement value of the managed component and the individual identifier are stored in the storage device 124 in association with each other. The information of the dimension measurement value can be managed efficiently.

(5-5)
The management method according to the present embodiment includes a step of transmitting information in which the individual identifier of the management target component stored in the storage device 124 is associated with the information of the dimension measurement value of the management target component.

  Here, since information is transmitted in which the individual identifier of the managed component and the information of the dimension measurement value of the component are transmitted, for example, the information is fed back to the manufacturing apparatus 400 or the like that processes the managed component to perform processing. It can be used to improve accuracy and reduce the cost of cutting tools.

(5-6)
In the management method according to the present embodiment, in the step of assigning the identifier code to the managed component, the identifier code is assigned to the surface of the managed component.

  Here, since the identifier code is attached to the surface of the component to be managed, it is easy for the reader 110 to read the identifier code. For example, it is easy to realize a process of automatically and simultaneously reading codes attached to a large number of managed components with the camera of the reader 110.

(5-7)
In the management method according to the present embodiment, in the step of attaching the identifier code to the managed component, the identifier code is stamped on the managed component.

  Here, since the identifier code is imprinted, the identifier code can be retained on the parts for a long period of time, and the quality traceability of each part of the compressor can be improved.

(5-8)
The management target components of the compressor managed by the management system 100 and the management method of the present embodiment are the components of the rotary compressors 10 and 310. The parts to be managed include the pistons 50 and 350, the cylinders 42 and 342, the crankshaft 70, the front head 44 and the rear head 46, and the vanes 54.

  Here, the information of the dimension measurement values is particularly important, and the dimension measurement values of the components of the compression mechanisms 40 and 340 of the rotary compressors 10 and 310 and the components related to the crankshaft 70 that transmits power to the compression mechanisms 40 and 340 are important. Manage information. Therefore, the management system 100 can efficiently perform quality control of the rotary compressors 10 and 310 and the like.

(6) Modification Example A modification example of the above embodiment will be described below. In addition, the following modified examples may be combined in a plurality without departing from the scope of the present invention.

(6-1) Modification A
In the above embodiment, the rotary compressors 10 and 310 are vertical rotary compressors, but the rotary compressor may be a horizontal rotary compressor in which the crankshaft 70 extends in the horizontal direction.

(6-2) Modification B
In the above embodiment, the rotary compressors 10 and 310 are one-cylinder rotary compressors, but the rotary compressors may be two-cylinder rotary compressors. When a component of a two-cylinder rotary compressor is to be managed, for example, a middle plate disposed between two cylinders may be included in the managed component.

(6-3) Modification C
In the rotary compressor 10 described in the above embodiment, all of the crankshaft 70, the cylinder 42, the front head 44, the rear head 46, the piston 50, and the vane 54 have the marking portions M1 to M6. In the rotary compressor 310 described in the above embodiment, all of the crankshaft 70, the cylinder 342, the front head 44, the rear head 46, and the piston 350 have the marking portions M1 to M5.

  However, the present invention is not limited to this, and at least one of the pistons 50 and 350, the crankshaft 70, the cylinders 42 and 342, the front head 44, the rear head 46, and the vane 54 may not have the marking portion. That is, at least one of the pistons 50 and 350, the crankshaft 70, the cylinders 42 and 342, the front head 44, the rear head 46, and the vane 54 may not be a managed component.

  In addition, components other than those described above of the rotary compressors 10 and 310 may be included in the components to be managed that are managed by using the management system 100 or the management method of the above embodiment.

(6-4) Modification D
The management method described in the above embodiment is an example, and the flow of the management method is not limited to the flow illustrated in the flowchart illustrated in FIG. For example, the order of steps S1 to S9 shown in the flowchart of FIG. 19 may be appropriately changed within a consistent range. Further, some of steps S1 to S9 shown in the flowchart of FIG. 19 may be omitted as appropriate.

  Although the embodiments of the present disclosure have been described above, it will be understood that various changes in form and details can be made without departing from the spirit and scope of the present disclosure described in the claims. .

  INDUSTRIAL APPLICABILITY The present disclosure is useful as a system and a management method capable of efficiently managing information on dimension measurement values of components constituting a compressor.

10,310 Rotary compressor 42,342 Cylinder (parts)
44 Front head (parts)
46 Rear head (parts)
50,350 piston (parts)
54 Vane (Parts)
70 Crankshaft (parts)
100 management system 110 reader (reading unit)
122a identifier acquisition unit (acquisition unit)
122b Component information acquisition unit (readout unit)
122e Transmission unit 124 Storage device (storage unit)

Japanese Patent Application No. 2009-257206

Claims (11)

A management system for managing parts (42, 44, 46, 50, 54, 70, 342, 350) of the compressor (10, 310),
A storage unit (124) that stores the individual identifier of the component and information of the dimension measurement value of the component in association with each other;
A reading unit (110) for reading a code attached to the component and relating to information of the individual identifier of the component;
An acquisition unit (122a) for acquiring the individual identifier from the code read by the reading unit;
A reading unit (122b) that reads information on the dimension measurement value from the storage unit based on the individual identifier acquired by the acquisition unit;
A management system (100), comprising: The reading unit performs an information search using the individual identifier as a keyword, and reads out information on the dimension measurement value associated with the individual identifier stored in the storage unit.
The management system according to claim 1. The code is a one-dimensional code or a two-dimensional code;
The management system according to claim 1. The compressor is a rotary compressor (10, 310),
The parts include at least one of a piston (50, 350), a cylinder (42, 342), a crankshaft (70), a front head (44), and a rear head (46).
The management system according to claim 1. A transmission unit (122e) configured to transmit information in which the individual identifier of the component stored in the storage unit and information of the dimension measurement value of the component are associated with each other;
The management system according to claim 1. A management method for managing parts (42, 44, 46, 50, 54, 70, 342, 350) of the compressor (10, 310),
Attaching a code relating to the information of the individual identifier to the component to be managed;
Measuring the dimensions of the part;
Storing the information of the dimension measurement value of the part and the individual identifier of the part in a storage device in association with each other;
A management method comprising: Further comprising transmitting information that associates the individual identifier of the component and the information of the dimension measurement value of the component stored in the storage device,
The management method according to claim 6. In the step of attaching the code to the component, the code is attached to a surface of the component.
The management method according to claim 6. In the step of attaching the code to the part, the code is stamped on the part.
The management method according to claim 8. The code is a one-dimensional code or a two-dimensional code;
The management method according to claim 6. The compressor is a rotary compressor (10, 310),
The parts include at least one of a piston (50, 350), a cylinder (42, 342), a crankshaft (70), a front head (44), and a rear head (46).
The management method according to any one of claims 6 to 10.

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