JP7431613B2 - Fluid machine and assembly method of fluid machine - Google Patents

Description

The present invention relates to a fluid machine such as a compressor or an expander, and a method for assembling the same.

A compressor described in Patent Document 1 is known as an example of a conventional fluid machine. The compressor described in Patent Document 1 is composed of a metal member divided into at least two parts, a housing in which each metal member is joined to each other to form a space inside, and a sacrificial corrosion protection material for the material of the housing. It includes a height adjustment member having an operative surface and located at the mutually joining joint of each metal member, and a compression mechanism housed within the housing.

Japanese Patent Application Publication No. 2012-215126

By the way, adjustment members such as the above-mentioned height adjustment member are mainly used for making minute adjustments.

However, if the surface of this adjustment member sacrificially corrodes, the thickness of the adjustment member changes due to the corrosion, and as a result, there is a risk that the above-mentioned minute adjustment may be disrupted.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to ensure corrosion resistance of the housing while maintaining good adjustment by the adjusting shim in a fluid machine in which an adjusting shim is disposed between two housing members constituting the housing.

According to a first aspect of the present invention, a fluid machine includes a first housing member and a second housing member that constitute a housing, and is arranged between the first housing member and the second housing member and has a first It includes an adjustment shim for adjusting the position of the second housing member relative to the housing member, and a compression or expansion mechanism housed in the housing. A recess capable of storing rust preventive oil is formed in at least one of the first contact surface of the first housing member that contacts the adjustment shim and the second contact surface of the second housing member that contacts the adjustment shim. has been done. A through hole is formed in the adjustment shim, one open end of the through hole faces the first abutting surface, and the other open end of the through hole faces the second abutting surface.

According to a second aspect of the present invention, a method for assembling a fluid machine includes: a first housing member and a second housing member constituting a housing; This is a method of assembling a fluid machine including an adjustment shim that adjusts the position of a second housing member with respect to a first housing member, and a compression mechanism or an expansion mechanism housed in the housing. At least one of the first contact surface of the first housing member that contacts the adjustment shim and the second contact surface of the second housing member that contacts the adjustment shim has a recess that can store rust-preventing oil. It is formed. The method of assembling the fluid machine includes a rust preventive oil application process of applying rust preventive oil to the surface of the adjustment shim, and an assembly process of sandwiching the adjustment shim coated with the rust preventive oil between a first housing member and a second housing member. ,including. In the assembly process, rust preventive oil is supplied into the recess by the pinching. A through hole is formed in the adjustment shim. In the assembly process, the adjusting shim is moved to the first contact surface with one open end of the through hole facing the first contact surface and the other open end of the through hole facing the second contact surface. It is sandwiched between the housing member and the second housing member.

According to a third aspect of the present invention, a method for assembling a fluid machine includes: a first housing member and a second housing member constituting a housing; This is a method of assembling a fluid machine including: an adjusting shim that adjusts the position of a second housing member with respect to a first housing member; and a compression mechanism or an expansion mechanism housed in the housing. At least one of the first contact surface of the first housing member that contacts the adjustment shim and the second contact surface of the second housing member that contacts the adjustment shim has a recess that can store rust-preventive oil. It is formed. A rust preventive oil injection passage for injecting rust preventive oil into the recess is formed in at least one of the first housing member and the second housing member. The method for assembling the fluid machine includes an assembly process in which an adjustment shim is sandwiched between a first housing member and a second housing member, and a rust preventive oil injection process in which rust preventive oil is injected into the recess through a rust preventive oil injection passage after the assembly process. and an injection step. A through hole is formed in the adjustment shim. In the assembly process, the adjustment shim is moved to the first contact surface with one open end of the through hole facing the first contact surface and the other open end of the through hole facing the second contact surface. It is sandwiched between the housing member and the second housing member.

According to the present invention, the contact surface of the housing member that contacts the adjustment shim is formed with a recess that can store rust preventive oil. Therefore, even if salt water or the like intrudes into the minute gap between the housing member and the adjustment shim from the outside, the intrusion can be blocked by the recess, thereby suppressing the occurrence of corrosion inside the housing from the recess. can do. In addition, this anti-corrosion oil may exist not only in the recess but also in the minute gap between the housing member and the adjustment shim, which prevents corrosion from occurring at the mating surfaces of the housing member and the adjustment shim. Can be suppressed. Therefore, the corrosion resistance of the housing can be ensured while maintaining good adjustment by the adjustment shim.

1 is a perspective view of a scroll fluid machine which is a first embodiment of a fluid machine to which the present invention is applied. FIG. 2 is an exploded perspective view of the scroll fluid machine of the first embodiment. It is a top view of the adjustment shim used for the scroll fluid machine of the said 1st Embodiment. FIG. 2 is an enlarged partial cross-sectional view of the scroll fluid machine of the first embodiment. It is an exploded perspective view of a scroll fluid machine which is a second embodiment of a fluid machine to which the present invention is applied. It is a top view of the adjustment shim used for the scroll fluid machine of the said 2nd Embodiment. FIG. 3 is an enlarged partial cross-sectional view of the scroll fluid machine of the second embodiment.

Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, a case where the fluid machine is a scroll fluid machine (scroll compressor or scroll expander) will be described. However, the present invention can be widely applied to fluid machines other than scroll fluid machines.

FIG. 1 is a perspective view of a scroll fluid machine 1, which is a first embodiment of a fluid machine to which the present invention is applied. FIG. 2 is an exploded perspective view of the scroll fluid machine 1. FIG. 3 is a plan view of the adjustment shim 10 used in the scroll fluid machine 1. FIG. 4 is an enlarged partial cross-sectional view of the scroll fluid machine 1. Here, in FIGS. 1 and 2, illustration of the seal member 8 is omitted for simplification of illustration.

The scroll fluid machine 1 in this embodiment may be configured as a compressor (scroll compressor) or an expander (scroll expander). When the scroll fluid machine 1 is configured as a compressor, the scroll fluid machine 1 is installed, for example, in a refrigerant circuit of a vehicle air conditioner, and compresses and discharges refrigerant sucked from the low pressure side of the refrigerant circuit. can be configured. Further, when the scroll fluid machine 1 is configured as an expander, the scroll fluid machine 1 is incorporated into a refrigerant circuit of a Rankine cycle device for a vehicle, for example, and generates power by expanding refrigerant introduced from the refrigerant circuit. (recovering power from the refrigerant).

The scroll fluid machine 1 has a front housing 2, a center plate 3, and a rear housing 4. The front housing 2, center plate 3, and rear housing 4 are made of a metal material such as an aluminum alloy. The front housing 2, center plate 3, and rear housing 4 are fastened together with a plurality of (six in this case) bolts 5 to constitute a housing of the scroll fluid machine 1.

In this embodiment, a plurality of (here, two) positioning pins 21 are press-fitted into the end surface 2a of the front housing 2 on the center plate 3 side. The center plate 3 is formed with a plurality (here, two) of pin holes 31 corresponding to the plurality of positioning pins 21, and the rear housing 4 has a recess (not shown) that can accommodate the tip of each positioning pin 21. (omitted) is formed. Thereby, at least the center plate 3 is positioned with respect to the front housing 2.

A fixed scroll 6 is integrally formed on a surface 3a of the center plate 3 on the front housing 2 side. Therefore, the center plate 3 can also be called a fixed scroll 6. The fixed scroll 6 has a disk-shaped substrate 61 whose one surface is fixed to the center plate 3, and a spiral portion 62 formed protrudingly from the other surface of the substrate 61. The fixed scroll 6 is housed in the front housing 2 by fitting the outer peripheral surface of the substrate 61 into the inner peripheral surface of the front housing 2 .

Although not shown, a groove is formed on the outer peripheral surface of the substrate 61 in which a sealing member such as an O-ring can be accommodated. A sealing member such as an O-ring installed in this groove can ensure sealing between the center plate 3, which is integral with the substrate 61, and the front housing 2.

A movable scroll 7 is housed within the front housing 2. The movable scroll 7 is arranged to face the fixed scroll 6. The movable scroll 7 has a disk-shaped substrate (not shown) and a spiral portion 72 that is engaged with the spiral portion 62 of the fixed scroll 6, and is configured to perform a rotational movement relative to the fixed scroll 6. There is. Moreover, the movable scroll 7 is connected to a rotating main shaft (not shown) via a conversion mechanism (not shown). The conversion mechanism is a mechanism capable of mutually converting the orbital motion of the movable scroll 7 and the rotational motion of the rotating main shaft.

When the scroll fluid machine 1 is configured as a compressor, the main rotating shaft is rotationally driven by an external device, and the rotation of the main rotating shaft is transmitted to the movable scroll 7 via the conversion mechanism. As a result, the movable scroll 7 performs an orbiting motion relative to the fixed scroll 6. When the movable scroll 7 performs the orbiting motion, refrigerant from the outside is sucked into the compression chamber formed between the spiral portion 62 of the fixed scroll 6 and the spiral portion 72 of the movable scroll 7, and the volume of the compression chamber decreases. By moving the refrigerant while moving, the refrigerant sucked into the compression chamber is compressed. The compressed refrigerant is then discharged from the scroll fluid machine 1. In this case, the fixed scroll 6 and the movable scroll 7 constitute a compression mechanism.

When the scroll fluid machine 1 is configured as an expander, a refrigerant from the outside is introduced into the expansion chamber formed between the spiral portion 62 of the fixed scroll 6 and the spiral portion 72 of the movable scroll 7, and the expansion chamber The refrigerant introduced into the expansion chamber expands within the expansion chamber. As a result, the movable scroll 7 performs an orbiting motion relative to the fixed scroll 6. Then, the orbiting motion of the movable scroll 7 is transmitted to the rotating main shaft via the conversion mechanism, the rotating main shaft rotates, and the rotation of the rotating main shaft is transmitted to an external device. Further, the expanded refrigerant is discharged from the scroll fluid machine 1. In this case, the fixed scroll 6 and the movable scroll 7 constitute an expansion mechanism.

In this embodiment, an adjustment shim 10 made of a metal plate such as a cold rolled steel plate (SPCC) is arranged between the front housing 2 and the center plate 3. The adjustment shim 10 is mainly used to adjust the position of the center plate 3 with respect to the front housing 2 (the position in the axial direction (longitudinal direction) of the scroll fluid machine 1). Particularly in this embodiment, the adjustment shim 10 is arranged to provide a gap between the fixed scroll 6 and the movable scroll 7, specifically, a gap between the tip of the spiral portion 62 of the fixed scroll 6 and the substrate of the movable scroll 7. , and is used to adjust the gap between the tip of the spiral portion 72 of the movable scroll 7 and the base plate 61 of the fixed scroll 6.

Here, the end surface 2a of the front housing 2 on the center plate 3 side becomes a contact surface that comes into contact with one surface 10a of the adjustment shim 10. Further, the surface 3a of the center plate 3 on the front housing 2 side becomes a contact surface that comes into contact with the other surface 10b of the adjustment shim 10.

The adjustment shim 10 is formed in an annular shape. Specifically, the adjustment shim 10 has an outer shape that is approximately the same as the outer shape of the front housing 2 and the center plate 3 (i.e., the outer shape of the housing of the scroll fluid machine 1), and has an outer shape that is similar to the inner peripheral surface of the front housing 2. It is formed with an inner hole 11 having approximately the same diameter.

The adjustment shim 10 has a plurality of (here, six) bolt insertion holes 12 into which one of the plurality of (here, six) bolts 5 is inserted, and a plurality of (here, two) bolt insertion holes 12, each of which has a plurality of (here, two) positioning holes. A plurality of (here, two) pin holes 13 are formed into which one of the pins 21 is inserted. Therefore, the adjustment shim 10 can be fixed in a positioned manner with respect to the front housing 2.

A sealing member 8 such as an annular sheet-shaped gasket is arranged between the surface 3b of the center plate 3 on the rear housing 4 side and the end surface of the rear housing 4 on the center plate 3 side. The sealing member 8 can ensure sealing between the center plate 3 and the rear housing 4.

A recess 22 is formed in the end surface 2a of the front housing 2 on the center plate 3 side (the contact surface that contacts one surface 10a of the adjustment shim 10) in which rust preventive oil can be stored. The recess 22 is an annular groove extending in the circumferential direction of the front housing 2 . The rust preventive oil can be stored (in other words held) in the space surrounded by the recess 22 and one surface 10a of the adjustment shim 10. It is preferable that the recess 22 be formed slightly inside the outer peripheral edge of the front housing 2.

A recess 32 capable of storing rust preventive oil is formed in the surface 3a of the center plate 3 on the front housing 2 side (the contact surface that contacts the other surface 10b of the adjustment shim 10). The recess 32 is an annular groove extending in the circumferential direction of the center plate 3. The rust preventive oil can be stored (in other words held) in the space surrounded by the recess 32 and the other surface 10b of the adjustment shim 10. It is preferable that the recess 32 be formed slightly inside the outer peripheral edge of the center plate 3.

In this embodiment, the recesses 22 and 32 are arranged to face each other with the adjustment shim 10 in between.

Next, a method for assembling the scroll fluid machine 1 in this embodiment will be explained.

In the method for assembling the scroll fluid machine 1, first, antirust oil is applied to the surfaces 10a and 10b of the adjustment shim 10 (antirust oil application step). In this step, a large amount of antirust oil is applied to the surfaces 10a and 10b of the adjustment shim 10.

Next, the adjustment shim 10 whose surfaces 10a and 10b have been coated with a large amount of anti-rust oil is sandwiched between the front housing 2 and the center plate 3 (assembly process). In this assembly process, by sandwiching the adjusting shim 10 between the front housing 2 and the center plate 3, a portion of the antirust oil applied to the adjusting shim 10 is supplied (accumulated) into the recesses 22 and 32. Further, in this assembly process, a compression mechanism or an expansion mechanism including the fixed scroll 6 and the movable scroll 7 may be housed in the front housing 2. Thereafter, the seal member 8 and the rear housing 4 are assembled and fastened with a plurality of bolts 5, thereby completing the main assembly of the scroll fluid machine 1.

In addition, although the case where both the recesses 22 and 32 are formed has been described above, it is also possible that either one of the recesses 22 and 32 is formed. In other words, either one of the recesses 22 and 32 may be omitted.

According to the present embodiment, the fluid machine (for example, the scroll fluid machine 1) includes a first housing member (for example, the front housing 2) and a second housing member (for example, the center plate 3) that constitute the housing, and a first housing member that constitutes the housing. An adjustment shim 10 is disposed between the second housing member and adjusts the position of the second housing member relative to the first housing member by its thickness, and a compression mechanism or an expansion mechanism (for example, a fixed scroll 6 and A movable scroll 7). At least one of the first contact surface (for example, end surface 2a) of the first housing member that contacts the adjustment shim 10 and the second contact surface (for example, surface 3a) of the second housing member that contacts the adjustment shim 10. Recesses 22 and 32 are formed in which rust preventive oil can be stored. Therefore, even if salt water or the like intrudes from the outside into the minute gap between the first and second housing members and the adjustment shim 10, the intrusion can be blocked by the recesses 22 and 32, It is possible to suppress the occurrence of corrosion inside the housing. Furthermore, since this anti-rust oil may exist not only in the recesses 22 and 32 but also in minute gaps between the first and second housing members and the adjustment shim 10, The occurrence of corrosion on the mating surfaces of the adjustment shim 10 and the adjustment shim 10 can be suppressed. Therefore, the corrosion resistance of the housing can be ensured while maintaining good adjustment by the adjustment shim 10.

Further, according to this embodiment, the recesses 22 and 32 are formed in both the first contact surface (for example, the end surface 2a) and the second contact surface (for example, the surface 3a). Thereby, it is possible to suppress the occurrence of corrosion of the first and second housing members on both sides of one surface 10a and the other surface 10b of the adjustment shim 10.

According to the present embodiment, the housing includes a fixed scroll 6 fixed to the first housing member or the second housing member (for example, the center plate 3), and a movable scroll 7 that performs an orbiting motion relative to the fixed scroll 6. A compression mechanism or an expansion mechanism is housed therein. The adjustment shim 10 is configured to adjust the gap between the fixed scroll 6 and the movable scroll 7. Corrosion resistance of the housing can be ensured while maintaining this gap adjustment well.

Further, according to the present embodiment, the method for assembling a fluid machine (for example, the scroll fluid machine 1) includes a rust preventive oil application process of applying rust preventive oil to the surface of the adjustment shim 10, and an adjustment shim coated with the rust preventive oil. 10 between a first housing member (eg, front housing 2) and a second housing member (eg, center plate 3). In the assembly process, rust preventive oil is supplied into the recesses 22 and 32 by the pinching. Thereby, the antirust oil can be easily filled into the recesses 22 and 32.

Further, according to the present embodiment, the assembly process includes the fixed scroll 6 fixed to the first housing member or the second housing member (for example, the center plate 3) and the movable scroll 7 that performs an orbiting motion relative to the fixed scroll 6. and enclosing a compression mechanism or an expansion mechanism within the housing. The adjustment shim 10 is configured to adjust the gap between the fixed scroll 6 and the movable scroll 7. Corrosion resistance of the housing can be ensured while maintaining this gap adjustment well.

FIG. 5 is an exploded perspective view of a scroll fluid machine 1' which is a second embodiment of a fluid machine to which the present invention is applied. FIG. 6 is a plan view of the adjusting shim 10 used in the scroll fluid machine 1'. FIG. 7 is an enlarged partial cross-sectional view of the scroll fluid machine 1'. Here, in FIG. 5, similarly to FIG. 2 described above, illustration of the seal member 8 is omitted for simplification of illustration.

Points different from the first embodiment described above will be explained.

In this embodiment, at least one (here, three) through holes 33 are formed in the center plate 3. This through hole 33 can function as a "rust preventive oil injection passage for injecting rust preventive oil into the recess" of the present invention, and is formed through the center plate 3. The through hole 33 extends in the axial direction (longitudinal direction) of the scroll fluid machine 1. One open end 33a of the through hole 33 faces into the recess 32, and the other open end 33b is located on the surface 3b of the center plate 3 on the rear housing 4 side. This open end 33b can be closed by the seal member 8.

In this embodiment, at least one (here, six) through holes 14 are formed in the adjustment shim 10. One open end of the through hole 14 faces an end surface 2a of the front housing 2 on the center plate 3 side (a contact surface that contacts one surface 10a of the adjustment shim 10). The other open end of the through hole 14 faces the surface 3a of the center plate 3 on the front housing 2 side (the contact surface that contacts the other surface 10b of the adjustment shim 10). In particular, in this embodiment, one open end of the through hole 14 faces the recess 22 and the other open end of the through hole 14 faces the recess 32.

Next, a method for assembling the scroll fluid machine 1' in this embodiment will be explained.

In the method for assembling the scroll fluid machine 1', first, antirust oil is applied to the surfaces 10a and 10b of the adjusting shim 10 (antirust oil application step). The amount of rust preventive oil applied in this step may be smaller than the amount of rust preventive oil applied in the rust preventive oil application step in the first embodiment described above.

Next, one open end of the through hole 14 of the adjustment shim 10 is made to face the end surface 2a of the front housing 2 on the center plate 3 side, and the other open end of the through hole 14 is placed on the front housing 2 side of the center plate 3. The adjustment shim 10 is sandwiched between the front housing 2 and the center plate 3 while facing the surface 3a (assembly process). Particularly in this embodiment, in the assembly process, the adjustment is performed with one open end of the through hole 14 of the adjustment shim 10 facing the recess 22 and the other open end of the through hole 14 facing the recess 32. A shim 10 is sandwiched between a front housing 2 and a center plate 3. In this assembly process, a compression mechanism or an expansion mechanism including the fixed scroll 6 and the movable scroll 7 may be housed within the front housing 2.

Next, the rust preventive oil is injected into the recess 32 through the through hole 33 by injecting the rust preventive oil into the through hole 33 from the open end 33b side (rust preventive oil injection step). The antirust oil injected into the recess 32 from the open end 33b side through the through hole 33 can be further supplied into the recess 22 through the through hole 14 of the adjustment shim 10. In this way, the recesses 22, 32 can be filled with antirust oil.

After filling the recesses 22 and 32 with the rust preventive oil, the other open end 33b of the through hole 33 of the center plate 3 is closed with the seal member 8 (rust preventive oil injection passage closing step). By assembling and fastening the rear housing 4 with a plurality of bolts 5, the main assembly of the scroll fluid machine 1' is completed. Here, the seal member 8 functions as a closing member that closes the injection port of the "rust-preventing oil injection passage" of the present invention.

In this embodiment, the above-mentioned rust-preventive oil application process is omitted, and a part of the rust-preventive oil injected into the recess 32 in the above-mentioned rust-preventive oil injection process is applied to the front housing of the center plate 3. A part of the rust preventive oil is introduced into the minute gap between the second surface 3a and the other surface 10b of the adjustment shim 10, and is supplied from the recess 32 to the recess 22 side through the through hole 14. It may be inserted into a minute gap between the end surface 2a of the front housing 2 on the center plate 3 side and one surface 10a of the adjustment shim 10.

Further, in this embodiment, the recess 22 may be omitted and only the recess 32 may be provided.

Particularly, according to the present embodiment, at least one of the first housing member and the second housing member (for example, the center plate 3) constituting the housing of the fluid machine (for example, the scroll fluid machine 1') has a recess 32 for rust prevention. A rust-preventing oil injection passage (for example, through hole 33) for injecting oil is formed. Therefore, after the adjustment shim 10 is sandwiched between the front housing 2 and the center plate 3 and assembled, the recess 32 can be reliably filled with antirust oil.

Further, according to the present embodiment, the adjustment shim 10 has a through hole 14 formed therein. One open end of the through hole 14 faces the first contact surface (for example, the end surface 2a), and the other open end of the through hole 14 faces the second contact surface (for example, the surface 3a). In particular, according to this embodiment, one open end of the through hole 14 faces the recess 22 and the other open end of the through hole 14 faces the recess 32. Therefore, the rust preventive oil injected into the recess 32 from the outside through the rust preventive oil injection passage (for example, the through hole 33) can be supplied into the recess 22 through the through hole 14 of the adjustment shim 10.

Further, according to the present embodiment, the fluid machine (for example, the scroll fluid machine 1') has a closing member (for example, a seal member 8 ). This closing member is provided between a third housing member (e.g., rear housing 4) constituting the housing of a fluid machine (e.g., scroll fluid machine 1') and a first housing member or a second housing member (e.g., center plate 3). This is a sealing member 8 for sealing. Therefore, when the third housing member (for example, the rear housing 4) is assembled, the antirust oil injection passage (for example, the through hole 33) can be closed by the seal member 8.

Further, according to the present embodiment, the method for assembling a fluid machine (for example, scroll fluid machine 1') is such that the adjustment shim 10 is assembled between a first housing member (for example, front housing 2) and a second housing member (for example, center plate 3). It includes an assembly process of sandwiching, and a rust preventive oil injection process of injecting rust preventive oil into the recess 32 through a rust preventive oil injection passage (for example, through hole 33) after the assembly process. Therefore, after the assembly process is performed, it is possible to reliably fill the recess 32 with the rust preventive oil.

Further, according to the present embodiment, the adjustment shim 10 has a through hole 14 formed therein. In the assembly process, one open end of the through hole 14 is made to face the first contact surface (for example, end surface 2a), and the other open end of the through hole 14 is made to face the second contact surface (for example, surface 3a). The adjustment shim 10 is sandwiched between a first housing member (for example, the front housing 2) and a second housing member (for example, the center plate 3) while facing each other. Particularly, according to this embodiment, in the assembly process, the adjusting shim 10 is sandwiched between a first housing member (eg, front housing 2) and a second housing member (eg, center plate 3). Therefore, the rust preventive oil injected into the recess 32 from the outside through the rust preventive oil injection passage (for example, the through hole 33) can be supplied into the recess 22 through the through hole 14 of the adjustment shim 10.

Further, according to the present embodiment, the method for assembling a fluid machine (for example, the scroll fluid machine 1') includes a rust preventive oil application step of applying rust preventive oil to the surfaces 10a and 10b of the adjustment shim 10 prior to the assembly step. Including further. In the assembly process, the adjustment shim 10 coated with antirust oil is sandwiched between a first housing member (for example, the front housing 2) and a second housing member (for example, the center plate 3). This allows the rust preventive oil to be interposed in minute gaps between the first housing member (for example, the front housing 2) and the adjustment shim 10 and between the adjustment shim 10 and the second housing member (for example, the center plate 3). can be done.

It goes without saying that the adjustment shim 10 in which the through hole 14 is formed in this embodiment may be employed in the first embodiment described above.

Furthermore, in the first embodiment and this embodiment, the recess 22 may be newly formed in the front housing 2 for storing rust-preventing oil, or may be formed by processing the existing part of the front housing 2. Grooves, etc. may be used to store rust-preventing oil. The same holds true for the recess 32 described above.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and it goes without saying that further modifications can be made based on the technical idea of the present invention. .
The claims originally filed were as follows.
[Claim 1]
A first housing member and a second housing member constituting a housing, and a position of the second housing member relative to the first housing member depending on the thickness of the first housing member and the second housing member. A fluid machine comprising: an adjustment shim for adjusting; and a compression mechanism or an expansion mechanism housed in the housing,
Antirust oil can be stored in at least one of a first contact surface of the first housing member that contacts the adjustment shim and a second contact surface of the second housing member that contacts the adjustment shim. A concave part is formed.
Fluid machinery.
[Claim 2]
The fluid machine according to claim 1, wherein at least one of the first housing member and the second housing member is formed with a rust preventive oil injection passage for injecting rust preventive oil into the recess.
[Claim 3]
A through hole is formed in the adjustment shim,
One open end of the through hole faces the first contact surface, and the other open end of the through hole faces the second contact surface.
The fluid machine according to claim 1 or claim 2.
[Claim 4]
A compression mechanism or an expansion mechanism including a fixed scroll fixed to the first housing member or the second housing member and a movable scroll that performs an orbiting motion relative to the fixed scroll is accommodated in the housing,
The adjustment shim is configured to adjust the gap between the fixed scroll and the movable scroll.
The fluid machine according to any one of claims 1 to 3.
[Claim 5]
A first housing member and a second housing member constituting a housing, and a position of the second housing member relative to the first housing member depending on the thickness of the first housing member and the second housing member. A method for assembling a fluid machine, the method comprising: an adjustment shim for adjusting a compression mechanism or an expansion mechanism housed in the housing;
Rust preventive oil is stored in at least one of a first contact surface of the first housing member that contacts the adjustment shim and a second contact surface of the second housing member that contacts the adjustment shim. A possible recess is formed,
The assembly method includes:
a rust preventive oil application step of applying rust preventive oil to the surface of the adjustment shim;
an assembly step of sandwiching the adjustment shim coated with anti-rust oil between the first housing member and the second housing member;
including;
In the assembly process, rust preventive oil is supplied into the recess by the pinching.
How to assemble fluid machinery.
[Claim 6]
A first housing member and a second housing member constituting a housing, and a position of the second housing member relative to the first housing member depending on the thickness of the first housing member and the second housing member. A method for assembling a fluid machine, the method comprising: an adjustment shim for adjusting a compression mechanism or an expansion mechanism housed in the housing;
Rust preventive oil is stored in at least one of a first contact surface of the first housing member that contacts the adjustment shim and a second contact surface of the second housing member that contacts the adjustment shim. A possible recess is formed,
A rust preventive oil injection passage for injecting rust preventive oil into the recess is formed in at least one of the first housing member and the second housing member,
The assembly method includes:
an assembly step of sandwiching the adjustment shim between the first housing member and the second housing member;
a rust preventive oil injection step of injecting rust preventive oil into the recess through the rust preventive oil injection passage after the assembly step;
A method of assembling a fluid machine, including:
[Claim 7]
A through hole is formed in the adjustment shim,
In the assembly process, the adjustment is performed with one open end of the through hole facing the first contact surface and the other open end of the through hole facing the second contact surface. sandwiching a shim between the first housing member and the second housing member;
A method for assembling a fluid machine according to claim 5 or 6.
[Claim 8]
In the assembly step, a compression mechanism or an expansion mechanism including a fixed scroll fixed to the first housing member or the second housing member and a movable scroll that performs an orbital movement relative to the fixed scroll is accommodated in the housing. including that
The adjustment shim is configured to adjust the gap between the fixed scroll and the movable scroll.
The method for assembling a fluid machine according to any one of claims 5 to 7.

1, 1'... Scroll fluid machine, 2... Front housing, 2a... End face, 3... Center plate, 3a, 3b... Surface, 4... Rear housing, 5... Bolt, 6... Fixed scroll, 7... Movable scroll, 8... Seal member, 10... Adjustment shim, 10a, 10b... Surface, 11... Inner hole, 12... Bolt insertion hole, 13... Pin hole, 14... Through hole, 21... Positioning pin, 22... Recess, 31... Pin hole, 32 ... recessed part, 33... through hole, 33a, 33b... open end, 61... substrate, 62, 72... spiral part

Claims (6)

A first housing member and a second housing member constituting a housing, and a position of the second housing member relative to the first housing member depending on the thickness of the first housing member and the second housing member. A fluid machine comprising: an adjustment shim for adjusting; and a compression mechanism or an expansion mechanism housed in the housing,
Antirust oil can be stored in at least one of a first contact surface of the first housing member that contacts the adjustment shim and a second contact surface of the second housing member that contacts the adjustment shim. A recess is formed ,
A through hole is formed in the adjustment shim,
One open end of the through hole faces the first contact surface, and the other open end of the through hole faces the second contact surface.
Fluid machinery. The fluid machine according to claim 1, wherein at least one of the first housing member and the second housing member is formed with a rust preventive oil injection passage for injecting rust preventive oil into the recess. A compression mechanism or an expansion mechanism including a fixed scroll fixed to the first housing member or the second housing member and a movable scroll that performs an orbiting motion relative to the fixed scroll is accommodated in the housing,
The adjustment shim is configured to adjust the gap between the fixed scroll and the movable scroll.
The fluid machine according to claim 1 or claim 2 . A first housing member and a second housing member constituting a housing, and a position of the second housing member relative to the first housing member depending on the thickness of the first housing member and the second housing member. A method for assembling a fluid machine, the method comprising: an adjustment shim for adjusting a compression mechanism or an expansion mechanism housed in the housing;
Rust preventive oil is stored in at least one of a first contact surface of the first housing member that contacts the adjustment shim and a second contact surface of the second housing member that contacts the adjustment shim. A possible recess is formed,
The assembly method includes:
a rust preventive oil application step of applying rust preventive oil to the surface of the adjustment shim;
an assembly step of sandwiching the adjustment shim coated with anti-rust oil between the first housing member and the second housing member;
including;
In the assembly process, rust preventive oil is supplied into the recess by the pinching ,
A through hole is formed in the adjustment shim,
In the assembly process, the adjustment is performed with one open end of the through hole facing the first contact surface and the other open end of the through hole facing the second contact surface. sandwiching a shim between the first housing member and the second housing member;
How to assemble fluid machinery. A first housing member and a second housing member constituting a housing, and a position of the second housing member relative to the first housing member depending on the thickness of the first housing member and the second housing member. A method for assembling a fluid machine, the method comprising: an adjustment shim for adjusting a compression mechanism or an expansion mechanism housed in the housing;
Rust preventive oil is stored in at least one of a first contact surface of the first housing member that contacts the adjustment shim and a second contact surface of the second housing member that contacts the adjustment shim. A possible recess is formed,
A rust preventive oil injection passage for injecting rust preventive oil into the recess is formed in at least one of the first housing member and the second housing member,
The assembly method includes:
an assembly step of sandwiching the adjustment shim between the first housing member and the second housing member;
a rust preventive oil injection step of injecting rust preventive oil into the recess through the rust preventive oil injection passage after the assembly step;
including;
A through hole is formed in the adjustment shim,
In the assembly process, the adjustment is performed with one open end of the through hole facing the first contact surface and the other open end of the through hole facing the second contact surface. sandwiching a shim between the first housing member and the second housing member;
How to assemble fluid machinery. In the assembling step, a compression mechanism or an expansion mechanism including a fixed scroll fixed to the first housing member or the second housing member and a movable scroll that performs an orbital movement relative to the fixed scroll is housed in the housing. including that
The adjustment shim is configured to adjust the gap between the fixed scroll and the movable scroll.
A method for assembling a fluid machine according to claim 4 or 5 .