WO2018151015A1 - Two-way-rotating scroll compressor - Google Patents
Two-way-rotating scroll compressor Download PDFInfo
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- WO2018151015A1 WO2018151015A1 PCT/JP2018/004473 JP2018004473W WO2018151015A1 WO 2018151015 A1 WO2018151015 A1 WO 2018151015A1 JP 2018004473 W JP2018004473 W JP 2018004473W WO 2018151015 A1 WO2018151015 A1 WO 2018151015A1
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- drive
- driven
- support member
- scroll
- drive side
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
Definitions
- the present invention relates to a dual-rotation scroll compressor.
- An object of the present invention is to provide a double-rotating scroll compressor capable of improving the processability of a driven scroll provided with walls on both sides of an end plate.
- the dual-rotating scroll compressor includes a first drive side plate and a plurality of first drive side walls provided at predetermined angular intervals around the center of the first drive side plate.
- a second drive side scroll portion having a first drive side scroll portion, a second drive side end plate, and a plurality of second drive side wall bodies provided at predetermined angular intervals around the center of the second drive side end plate;
- a wall fixing portion for fixing the first drive side scroll portion and the second drive side scroll portion in a state where the first drive side wall body and the second drive side wall body face each other, from the drive portion
- a drive side scroll member rotationally driven by the transmitted driving force, a driven side end plate positioned between the first drive side wall and the second drive side wall, and a center of one surface of the driven side end plate Provided at predetermined angular intervals around the plurality of A plurality of first driven side walls provided corresponding to each of the first driving side walls, and the plurality of second driving side walls provided at predetermined angular intervals around the
- a support member configured to rotate with the driven scroll member, wherein a support member fixing portion to which the support member is fixed is provided on a tip surface of the driven side wall body. Said support Fixing surface of the wood fixing portion, in which are located the tooth crest and the same plane.
- a support member fixing portion fixed to the support member is provided on the tip of the driven side wall of the driven side scroll member, and the fixing surface of the support member fixing portion is located on the same plane as the tip.
- the support member is provided with a support member main body located on the axially outer side of the first drive side plate or the second drive side plate.
- the support member main body may be provided with a protrusion projecting toward the support member fixing portion.
- the support member includes a support member main body located on the axially outer side of the first drive side plate or the second drive side plate; and the support member
- the adjustment member installed between the main body and the support fixing portion may be provided. According to this, since the support member main body and the adjustment member are provided as separate members, processing of the support member main body becomes easy. Further, the adjustment of the gap between the facing end plates of the scroll members and the tip end surface of the wall can be easily performed by adjusting the height of the adjusting member.
- the support member may be fixed to the tip of each of the plurality of first driven side walls or the plurality of second driven side walls. Since the support members are fixed by the tooth tops provided on the driven side walls, the stability is improved.
- a first support member which is fixed to the tooth top surface of the plurality of first driven side walls and rotates together with the driven scroll portion
- a second support member may be provided, which is fixed to the tooth top surfaces of the plurality of second driven side walls and rotates with the driven scroll portion.
- the first drive-side scroll portion is rotationally driven by the drive portion
- the second drive-side scroll portion is fixed to the wall from the first drive-side scroll portion
- a second support member main body which is rotationally driven by the driving force transmitted through the second support member, the second support member being located on the axially outer side of the second drive side plate, and the second support member main body;
- a second support adjusting member installed between the support fixing portions.
- the adjustment member can be provided on the second support member side, and the other first support member side can be a support member in which the projecting portion is formed. Adjustment of the is also possible.
- a support member fixing portion fixed to the support member is provided on the tip of the driven side wall of the driven side scroll member, and the fixing surface of the support member fixing portion is located on the same plane as the tip.
- FIG. 6 is a plan view showing a plurality of first driven side walls of the driven scroll member. It is a side view of the 1st support member seen from the motor side. It is the principal part enlarged view which expanded the principal part of the 2nd support member. It is the principal part enlarged view which expanded the principal part of the 2nd support member which concerns on a modification.
- FIG. 1 is a longitudinal sectional view showing a double-turn scroll compressor 1 according to an embodiment of the present invention.
- the double-rotating scroll compressor 1 can be used, for example, as a turbocharger that compresses combustion air (fluid) supplied to an internal combustion engine such as a vehicle engine.
- the double-rotating scroll compressor 1 includes a housing 3, a motor 5 as a drive unit accommodated on one end of the housing 3, a drive shaft 6 for transmitting a driving force of the motor 5, and the other end of the housing 3.
- Drive side scroll member 7 provided between drive side scroll member 7 and driven side scroll member 9, support member 4 supporting rotation of driven side scroll member 9, support member 4 and drive side scroll member 7
- a pin ring mechanism 15 is provided as a drive transmission mechanism for transmitting a driving force from the member 7 to the driven scroll member 9.
- the housing 3 has a substantially cylindrical shape.
- the housing 3 includes a motor housing portion 3a for housing the motor 5, cooling fins 3b formed on the outer periphery of the motor housing portion 3a, a scroll housing portion 3c for housing the scroll members 7 and 9, and a scroll housing portion 3c. And an outlet 3d for discharging compressed air.
- the housing 3 is also provided with an air inlet (not shown) for drawing air.
- the scroll housing portion 3 c is divided by a division plane P perpendicular to the axial direction of each of the scroll members 7 and 9.
- the divided surface P is located at a position where the circumferential surface 3f is separated from the side surface 3e of the scroll housing 3c in contact with the motor housing 3a.
- the parting plane P is fastened by fixing it through the bolt 3g.
- the motor 5 is driven by supplying power from a power supply source (not shown).
- the rotation control of the motor 5 is performed by a command from a control unit (not shown).
- the motor 5 has a stator 5a and a rotor 5b.
- the stator 5a is fixed to the inner peripheral side of the motor housing 3a.
- the rotor 5b rotates around the drive side rotation axis CL1.
- the drive shaft 6 extending on the drive side rotation axis line CL1 is connected to the rotor 5b.
- the drive shaft 6 is connected to the first drive side shaft portion 71 c of the drive side scroll member 7 via a bolt 6 a.
- the drive shaft 6 is rotatably provided with respect to the housing 3 via the first drive bearing 11.
- a rear end bearing 17 for rotatably supporting the drive shaft 6 with the housing 3 is provided.
- the drive-side scroll member 7 includes a first drive-side scroll portion 71 located on the motor 5 side and a second drive-side scroll portion 72 located on the discharge port 3 d side.
- the first drive side scroll portion 71 includes a first drive side end plate 71a and a plurality of first drive side walls 71b.
- the first drive side end plate 71a is connected to a first drive side shaft 71c connected to the drive shaft 6, and extends in a direction orthogonal to the drive side rotational axis CL1.
- the first drive side end plate 71a has a substantially disc shape in a plan view.
- FIG. 2 is a top view showing the plurality of first drive side walls 71b of the first drive side scroll portion 71.
- first drive side wall bodies 71b in a spiral shape are provided on the first drive side end plate 71a.
- the first drive side wall 71b in the form of three strips is disposed at equal intervals around the drive side rotation axis CL1.
- the wound end portions 71e of the first drive side walls 71b are not fixed to the other wall portions but are independent. That is, no wall portion is provided to connect and reinforce the respective winding end portions 71e.
- the second drive side scroll portion 72 includes a second drive side end plate 72 a and a plurality of second drive side walls 72 b. Similar to the first drive side wall 71b (see FIG. 2) described above, three second drive side walls 72b are provided on the second drive side end plate 72a.
- a second drive side shaft portion 72c extending in the direction of the drive side rotation axis CL1 is connected to the second drive side end plate 72a.
- the second drive side shaft portion 72 c is provided rotatably with respect to the housing 3 via the second drive side bearing 14.
- a seal member 14a is provided which divides the high pressure space and the low pressure space.
- the second drive side shaft portion 72c is formed with a discharge port 72d along the drive side rotational axis CL1.
- the first drive side scroll portion 71 and the second drive side scroll portion 72 are fixed in a state where tips (free ends) of the drive side walls 71 b and 72 b face each other.
- the first drive-side scroll portion 71 and the second drive-side scroll portion 72 respectively have flange portions 73a and 73b formed to project outward in the radial direction. ) Is provided.
- a plurality of flanges 73 are provided in the circumferential direction.
- Each flange portion 73 is fastened by a pin 31.
- Each of the drive scrolls 71 and 72 is fixed by the pin 31, so that movement in a direction away from each other in the axial direction (horizontal direction in FIG. 1) is permitted.
- Each flange portion 73 and the pin 31 correspond to a wall fixing portion.
- the driven scroll member 9 includes a driven end plate 91 extending in a direction perpendicular to the direction of the drive rotation axis CL1, and a plurality of first driven side walls 92a provided on both surfaces of the driven end plate 91 and a plurality of first driven side walls 92a. And a second driven side wall 92b (sometimes referred to as a driven side wall 92 unless otherwise specified).
- a through hole 91a is formed at the center of the driven end plate 91, and air after compression is configured to flow to the discharge port 72d.
- the driven scroll member 9 rotates about the driven rotation axis CL2.
- the plurality of first driven side walls 92 a are disposed on the surface of the driven side end plate 91 facing the motor 5, and are engaged with the first driving side walls 71 b of the first drive side scroll portion 71.
- the plurality of second driven side walls 92b are disposed on the surface of the driven side end plate 91 facing the discharge port 3d, and are engaged with the second driving side walls 72b of the second drive side scroll portion 72.
- a compression space CS is formed between the driven side walls 92a and 92b and the driving side walls 71b and 72b corresponding to the driven side walls.
- FIG. 3 is a plan view showing the plurality of first driven side walls 92 a of the driven scroll member 9.
- the first driven side wall 92a is provided in three or three rows.
- the first driven side walls 92a are arranged at equal intervals around the driven side rotation axis CL2.
- An end portion 92e which is a circumferential outer end of each first driven side wall 92a is a free end.
- a fixing portion 92c as a support member fixing portion to which the support member 4 is fixed is provided in the vicinity of the winding end portion 92e of each first driven side wall 92a, and the fixing portion 92b is used to fasten the support member 4
- Bolt holes 92d are formed.
- the second driven side wall 92b also has the same configuration, and thus the description thereof is omitted.
- the support member 4 has a first support member 41 located on the motor 5 side and a second support member 42 located on the discharge port 3 d side. Each support member 4 is provided at each end of the driven scroll member 9 in the direction of the driven rotation axis CL2.
- the first support member 41 is fixed via the fixing portion 92c of the first driven side wall 92a and the bolt 41a.
- the bolt 41a is fastened to the bolt hole 92d of the fixing portion 92c as shown in FIG.
- the second support member 42 is fixed via the fixing portion 92c of the second driven side wall 92b and the bolt 42a.
- the first drive-side scroll portion 71 is sandwiched between the first support member 41 and the driven-side scroll member 9. Therefore, the first drive side end plate 71 a is disposed to face the first support member 41.
- a first support member shaft 41 b is provided on the central axis side of the first support member 41.
- the first support member shaft portion 41 b is fixed to the housing 3 via the first support member bearing 41 c.
- a second support member shaft portion 42b is provided on the central axis side of the second support member 42.
- the second support member shaft portion 42 b is fixed to the housing 3 via a second support member bearing 42 c.
- the driven scroll member 9 is configured to rotate around the driven rotation axis CL2 via the support members 41 and 42.
- FIG. 4 is a side view of the first support member 41 viewed from the motor side.
- the first support member 41 has a radially extending portion 41d extending radially outward to the outer peripheral position of each first driven side wall 92b at each position where the tip of each first driven side wall 92a is fixed. There is.
- the region between the radially extending portions 41d is shaped so as not to extend to the outer peripheral side of each first driven side wall 92b, thereby achieving weight reduction.
- the radially extending portions 41 d are provided in three directions at equal angular intervals.
- the first support member 41 and the first drive side scroll portion 71 are shown, and the driven side scroll member 9 is not shown.
- the pin ring mechanism 15 has a ring member 15 a provided on the first support member 41 and a pin member 15 b provided on the first drive side end plate 71 a.
- the pin ring mechanism 15 is used as a synchronous drive mechanism for transmitting the driving force from the drive side scroll member 7 to the driven side scroll member 9 so that the scroll members 7 and 9 rotate and orbit synchronously.
- FIG. 5 is an enlarged view of an essential part of the second support member 42.
- the configuration of the first support member 41 is the same as that of the second support member 42 in the following description, and therefore the description thereof is omitted, and the second support member 42 will be representatively described.
- the second support member 42 is provided with a support member main body 42d located outside the second drive side end plate 72a in the direction of the driven side rotation axis CL2.
- a protrusion 42 e is provided which protrudes toward the fixed portion 92 c of the driven scroll member 9.
- the protrusion 42e extends to a fixing surface 92f as a tip end surface of the fixing portion 92c, and is fixed in contact with the fixing surface 92f.
- the fixed surface 92 f of the driven scroll member 9 is located on the same plane as the tooth tip surface 92 g which is the tip end surface of the driven side wall 92 of the driven scroll member 9.
- a bolt through hole 42f is formed in the protrusion 42e, and the bolt 42a is fastened. Thereby, the second support member 42 and the second driven sidewall 92b are fastened.
- the air sucked from the suction port of the housing 3 is drawn from the outer peripheral side of the scroll members 7 and 9.
- the compression space is taken into the formed compression chamber.
- the compression chamber formed by the first drive side wall 71b and the first driven side wall 92a and the compression chamber formed by the second drive side wall 72b and the second driven side wall 92b are separately compressed. Ru.
- the volume of each compression chamber decreases as it moves toward the center, and the air is compressed accordingly.
- the air compressed by the first drive side wall 71b and the first driven side wall 92a passes through the through hole 91a formed in the driven side end plate 91, and the second drive side wall 72b and the second driven side wall 92b
- the air that has been compressed is merged with the air that has been compressed, and the merged air passes through the discharge port 72 d and is discharged from the discharge port 3 d of the housing 3 to the outside.
- the discharged compressed air is led to an internal combustion engine (not shown) and used as combustion air.
- the tooth top surfaces 92g of the first driven side wall 92a and the second driven side wall 92b of the driven scroll member 9 are formed on the same plane, and the fixing surface 92f is also included in the same plane. Therefore, since the tooth top surface 92g becomes flat and the tooth heights become substantially the same, machining becomes easy. Processability can be improved without the need for complicated processing.
- the protrusion 42 e is provided in the support member 4, the processing of the support member 4 is not required to have high accuracy as in the driven scroll member 9. Since the processing is also relatively easy, by providing the protrusion 42 e on the support member 4, the processability of the rotary scroll compressor 1 is improved. Therefore, a cost-saving configuration can be realized.
- the present invention is not limited to the above-described embodiment, and can be implemented in various embodiments.
- the support member 4 is described as being provided with the protrusion 42 e, but the present invention is not limited to this.
- the adjustment member 4a may be provided between the support member 4A and the driven scroll member 9 instead of the protrusion 42e.
- FIG. 6 is an enlarged view of an essential part of the second support member 42A of the dual rotation scroll compressor 1A according to the modification.
- the present modification differs from the above-described embodiment in that the adjustment member 4Aa is provided instead of the protrusion 42e, and the other configuration is the same.
- the same components as those in the embodiment described above are denoted by the same reference numerals, and the description thereof will be omitted.
- the configuration of the first support member in the modification is the same as the configuration of the second support member 42A in the parts described below, so the description is omitted, and the second support member 42A is represented explain.
- the second support member 42A is provided with a support member main body 42Ad located outside the second drive side end plate 72a in the direction of the driven side rotation axis line CL2, and between the support member main body 42Ad and the driven side scroll member 9
- the adjustment member 4Aa is provided.
- As the adjustment member 4Aa for example, a metal cylindrical collar is used.
- bolt through holes 42Af and 4a1 through which the bolts 42Aa are inserted are respectively formed.
- the second support member 42A and the drive-side scroll member 9 are fastened by the bolt 42Aa through the adjustment member (second support adjustment member) 4Aa.
- the adjustment member 4Aa is provided as a separate member from the support member 4A, processing of the support member 4A is facilitated. Further, the adjustment of the gap between the facing end plates of the scroll members 7 and 9 and the tip end surface of the wall can be easily performed by adjusting the height of the adjusting member 4A. Since the drive-side scroll member 7, the driven-side scroll member 9, and the support member 4 have slight dimensional errors, it is possible to easily cope with the variation in the clearance caused by combining them by changing the adjustment member 4A.
- the fixing portion 92c is provided at the winding end portion 92e of each driven side wall 92, and the support member 4 is fixed to the fixing portion 92c.
- the invention is not limited thereto.
- the fixing portion 92c may be provided at the winding end portion 92e of some of the driven side walls 92, and the support member 4 may be fixed.
- the provision of the first support member 41 and the second support member 42 has been described, but the present invention is not limited to this. Either one of the support members may be provided.
- each support member to the driven scroll member has been described as having the same configuration, but the present invention is not limited thereto.
- a support member main body and an adjustment member 4Aa may be provided as a second support member, and a support member main body having a protrusion (a configuration similar to the reference numeral 42e in FIG. 5) may be provided as a first support member.
- One adjustment member 4Aa is provided, and the other is a support member 4 having a projection formed thereon, so that it is possible to adjust the gap with the adjustment member 4Aa while suppressing the number of parts.
- the first support member may be provided with the adjustment member 4Aa, and the second support member may be provided with a support member having a protrusion.
- the present invention is not limited to this, as long as the fluid is compressed. It can be widely used, and can also be used, for example, as a refrigerant compressor used in an air conditioning machine.
- the scroll compressor of the present invention may be applied to a pneumatic control system using the force of air as a brake system for a railway vehicle.
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Abstract
A two-way-rotating scroll compressor (1) comprising: a drive-side scroll member (7) having a flange part (73) that secures drive-side scroll parts (71, 72); a driven-side scroll member (9) having a driven-side end plate (91) positioned between drive-side wall bodies (71b, 72b), and a plurality of first driven-side wall bodies (92a) and a plurality of second driven-side wall bodies (92b) provided respectively to both surfaces of the driven-side end plate (91); and a support member (4) that is secured to tooth tip surfaces (92g) of the driven-side wall bodies (92a, 92b) and that rotates together with the driven-side scroll member (9); wherein the tooth tip surfaces (92g) of the driven-side wall bodies are provided with support member securing parts (92c) to which the support member (4) is secured, and securing surfaces of the support member securing parts (92c) are positioned in the same plane as the tooth tip surfaces (92g).
Description
本発明は、両回転スクロール型圧縮機に関するものである。
The present invention relates to a dual-rotation scroll compressor.
駆動側スクロールと、駆動側スクロールとともに同期して回転する従動側スクロールとを備えた両回転スクロール型圧縮機が知られている。このような圧縮機では、従動側スクロールの端板の両側にそれぞれ壁体が設けられたいわゆる両歯タイプのものが存在し、駆動側スクロールを回転させる駆動軸に対して、従動側スクロールの回転を支持する従動軸が旋回半径分だけオフセットして、駆動軸と従動軸とが同じ方向に同一角速度で回転している(例えば、特許文献1参照)。
2. Description of the Related Art There is known a dual-rotation scroll compressor provided with a drive-side scroll and a driven-side scroll that rotates synchronously with the drive-side scroll. In such a compressor, there is a so-called double-tooth type in which a wall is provided on both sides of an end plate of a driven scroll, and rotation of the driven scroll with respect to a drive shaft that rotates the drive scroll. The drive shaft and the driven shaft are rotated at the same angular velocity in the same direction, with the driven shaft supporting the rotor offset by the turning radius (see, for example, Patent Document 1).
上述した両回転スクロール型圧縮機において、従動側スクロールの壁体の変形を防止するために壁体の先端部をサポート部材で固定する場合に、その固定面をサポート部材寄りに設けると壁体の先端部が揃わず従動側スクロールの壁体の加工が複雑になり、加工性が低下するおそれがある。
In the case of fixing the tip of the wall with the support member in order to prevent deformation of the wall of the driven scroll in the dual-rotating scroll compressor described above, if the fixing surface is provided closer to the support member There is a possibility that processing of the wall of the driven scroll becomes complicated because the tips are not aligned, and the processability is reduced.
本発明は、端板の両側にそれぞれ壁体が設けられた従動側スクロールの加工性の向上が可能な両回転スクロール型圧縮機を提供することを目的とする。
An object of the present invention is to provide a double-rotating scroll compressor capable of improving the processability of a driven scroll provided with walls on both sides of an end plate.
本発明の一態様に係る両回転スクロール型圧縮機は、第1駆動側端板、及び前記第1駆動側端板の中心回りに所定角度間隔に設けられた複数の第1駆動側壁体を有する第1駆動側スクロール部と、第2駆動側端板、及び前記第2駆動側端板の中心回りに所定角度間隔に設けられた複数の第2駆動側壁体を有する第2駆動側スクロール部と、前記第1駆動側壁体及び前記第2駆動側壁体が互いに向かい合う状態で前記第1駆動側スクロール部及び前記第2駆動側スクロール部を固定する壁体固定部と、を有し、駆動部から伝達された駆動力により回転駆動される駆動側スクロール部材と、前記第1駆動側壁体及び前記第2駆動側壁体の間に位置する従動側端板と、前記従動側端板の一面に対し中心回りに所定角度間隔に設けられて前記複数の第1駆動側壁体のそれぞれに対応して設けられた複数の第1従動側壁体と、前記従動側端板の他面に対し中心回りに所定角度間隔に設けられて前記複数の第2駆動側壁体のそれぞれに対応して設けられた複数の第2従動側壁体と、を有し、各従動側壁体とその従動側壁体に対応する駆動側壁体との間で圧縮空間を形成する従動側スクロール部材と、前記駆動側スクロール部材から前記従動側スクロール部材に駆動力を伝達する駆動伝達機構と、前記複数の第1従動側壁体又は前記複数の第2従動側壁体の歯先面に固定されて前記従動側スクロール部材とともに回転するサポート部材と、を備えた両回転スクロール型圧縮機であって、前記従動側壁体の歯先面には、前記サポート部材が固定されるサポート部材固定部が設けられ、前記サポート部材固定部の固定面が、前記歯先面と同一の平面内に位置しているものである。
The dual-rotating scroll compressor according to one aspect of the present invention includes a first drive side plate and a plurality of first drive side walls provided at predetermined angular intervals around the center of the first drive side plate. A second drive side scroll portion having a first drive side scroll portion, a second drive side end plate, and a plurality of second drive side wall bodies provided at predetermined angular intervals around the center of the second drive side end plate; And a wall fixing portion for fixing the first drive side scroll portion and the second drive side scroll portion in a state where the first drive side wall body and the second drive side wall body face each other, from the drive portion A drive side scroll member rotationally driven by the transmitted driving force, a driven side end plate positioned between the first drive side wall and the second drive side wall, and a center of one surface of the driven side end plate Provided at predetermined angular intervals around the plurality of A plurality of first driven side walls provided corresponding to each of the first driving side walls, and the plurality of second driving side walls provided at predetermined angular intervals around the center with respect to the other surface of the driven side plate; A driven side scroll member having a plurality of second driven side walls provided corresponding to each of the plurality of driven side walls and forming a compression space between each driven side wall and a driving side wall corresponding to the driven side wall And a drive transmission mechanism for transmitting a driving force from the drive-side scroll member to the driven-side scroll member, and a tooth tip surface of the plurality of first driven side walls or the plurality of second driven side walls. And a support member configured to rotate with the driven scroll member, wherein a support member fixing portion to which the support member is fixed is provided on a tip surface of the driven side wall body. Said support Fixing surface of the wood fixing portion, in which are located the tooth crest and the same plane.
従動側スクロール部材の従動側壁体の歯先面にサポート部材と固定されるサポート部材固定部が設けられ、サポート部材固定部の固定面が歯先面と同一平面に位置している。これにより、歯先面に突出する部分がなく平坦となり、歯丈が略同一となるので加工が容易となる。したがって、複雑な加工を必要とせず、加工性が向上する。
A support member fixing portion fixed to the support member is provided on the tip of the driven side wall of the driven side scroll member, and the fixing surface of the support member fixing portion is located on the same plane as the tip. As a result, there is no projecting portion on the tooth top surface, and the surface becomes flat, and since the tooth heights are substantially the same, machining becomes easy. Therefore, the processability is improved without the need for complicated processing.
本発明の両回転スクロール型圧縮機の一態様において、前記サポート部材には、前記第1駆動側端板又は前記第2駆動側端板の軸方向外側に位置するサポート部材本体が設けられ、前記サポート部材本体には、前記サポート部材固定部に向かって突出する突出部が設けられていてもよい。これによれば、サポート部材に突出部を設けることにより突出部とサポート部材固定部の固定面とが固定される。突出部が固定面まで延びているので従動側スクロール部材の従動側壁体の歯先面を平坦に形成できる。
In one aspect of the double-rotating scroll compressor according to the present invention, the support member is provided with a support member main body located on the axially outer side of the first drive side plate or the second drive side plate. The support member main body may be provided with a protrusion projecting toward the support member fixing portion. According to this, by providing the protruding portion on the support member, the protruding portion and the fixing surface of the support member fixing portion are fixed. Since the projection extends to the fixed surface, the tip of the driven side wall of the driven scroll member can be formed flat.
本発明の両回転スクロール型圧縮機の一態様において、前記サポート部材には、前記第1駆動側端板又は前記第2駆動側端板の軸方向外側に位置するサポート部材本体と、前記サポート部材本体及び前記サポート固定部の間に設置された調整部材と、が設けられていてもよい。これによれば、サポート部材本体と調整部材とが別個の部材として設けられているため、サポート部材本体の加工が容易となる。また、各スクロール部材の向かい合う端板と壁体の先端面との間の隙間の調整を調整部材の高さを調整することにより容易に実施できる。
In one aspect of the double-rotating scroll compressor according to the present invention, the support member includes a support member main body located on the axially outer side of the first drive side plate or the second drive side plate; and the support member The adjustment member installed between the main body and the support fixing portion may be provided. According to this, since the support member main body and the adjustment member are provided as separate members, processing of the support member main body becomes easy. Further, the adjustment of the gap between the facing end plates of the scroll members and the tip end surface of the wall can be easily performed by adjusting the height of the adjusting member.
本発明の両回転スクロール型圧縮機の一態様において、前記サポート部材は、前記複数の第1従動側壁体又は前記複数の第2従動側壁体のそれぞれの歯先面に固定されていてもよい。各従動側壁体に設けられた歯先面でサポート部材が固定されるので安定性が向上する。
In one aspect of the double-rotating scroll compressor of the present invention, the support member may be fixed to the tip of each of the plurality of first driven side walls or the plurality of second driven side walls. Since the support members are fixed by the tooth tops provided on the driven side walls, the stability is improved.
本発明の両回転スクロール型圧縮機の一態様において、前記サポート部材として、前記複数の第1従動側壁体の歯先面に固定されて前記従動側スクロール部とともに回転する第1サポート部材と、前記複数の第2従動側壁体の歯先面に固定されて前記従動側スクロール部とともに回転する第2サポート部材と、が設けられていてもよい。これによれば、駆動側スクロール部材の各駆動側端板に対向して各サポート部材が設けられるので安定した回転を実現できる。
In one aspect of the double-rotating scroll compressor according to the present invention, as the support member, a first support member which is fixed to the tooth top surface of the plurality of first driven side walls and rotates together with the driven scroll portion; A second support member may be provided, which is fixed to the tooth top surfaces of the plurality of second driven side walls and rotates with the driven scroll portion. According to this, since each support member is provided to face each drive side end plate of the drive side scroll member, stable rotation can be realized.
上述した形態において、前記駆動側スクロール部材は、前記第1駆動側スクロール部が前記駆動部により回転駆動されるとともに、前記第2駆動側スクロール部が前記第1駆動側スクロール部から前記壁体固定部を介して伝達された駆動力により回転駆動され、前記第2サポート部材には、前記第2駆動側端板の軸方向外側に位置する第2サポート部材本体と、前記第2サポート部材本体及び前記サポート固定部の間に設置された第2サポート調整部材と、が設けられていてもよい。これによれば、調整部材は第2サポート部材側に設けるに留め、他方の第1サポート部材側には突出部が形成されたサポート部材とすることができ、部品点数を抑えつつ調整部材で隙間の調整も可能となる。
In the embodiment described above, in the drive-side scroll member, the first drive-side scroll portion is rotationally driven by the drive portion, and the second drive-side scroll portion is fixed to the wall from the first drive-side scroll portion A second support member main body, which is rotationally driven by the driving force transmitted through the second support member, the second support member being located on the axially outer side of the second drive side plate, and the second support member main body; And a second support adjusting member installed between the support fixing portions. According to this, the adjustment member can be provided on the second support member side, and the other first support member side can be a support member in which the projecting portion is formed. Adjustment of the is also possible.
従動側スクロール部材の従動側壁体の歯先面にサポート部材と固定されるサポート部材固定部が設けられ、サポート部材固定部の固定面が歯先面と同一平面に位置している。これにより、歯先面に突出する部分がなく平坦となり、歯丈が略同一となるので加工が容易となる。したがって、複雑な加工を必要とせず、加工性が向上する。
A support member fixing portion fixed to the support member is provided on the tip of the driven side wall of the driven side scroll member, and the fixing surface of the support member fixing portion is located on the same plane as the tip. As a result, there is no projecting portion on the tooth top surface, and the surface becomes flat, and since the tooth heights are substantially the same, machining becomes easy. Therefore, the processability is improved without the need for complicated processing.
図1は、本発明の一実施形態に係る両回転スクロール型圧縮機1を示す縦断面図である。両回転スクロール型圧縮機1は、例えば車両用エンジン等の内燃機関に供給する燃焼用空気(流体)を圧縮する過給機として用いることができる。両回転スクロール型圧縮機1は、ハウジング3と、ハウジング3の一端側に収容された駆動部としてのモータ5と、モータ5の駆動力を伝達する駆動軸6と、ハウジング3の他端側に収容された駆動側スクロール部材7及び従動側スクロール部材9と、従動側スクロール部材9の回転をサポートするサポート部材4と、サポート部材4と駆動側スクロール部材7との間に設けられ、駆動側スクロール部材7から従動側スクロール部材9に駆動力を伝達する駆動伝達機構としてのピンリング機構15とを備えている。
FIG. 1 is a longitudinal sectional view showing a double-turn scroll compressor 1 according to an embodiment of the present invention. The double-rotating scroll compressor 1 can be used, for example, as a turbocharger that compresses combustion air (fluid) supplied to an internal combustion engine such as a vehicle engine. The double-rotating scroll compressor 1 includes a housing 3, a motor 5 as a drive unit accommodated on one end of the housing 3, a drive shaft 6 for transmitting a driving force of the motor 5, and the other end of the housing 3. Drive side scroll member 7 provided between drive side scroll member 7 and driven side scroll member 9, support member 4 supporting rotation of driven side scroll member 9, support member 4 and drive side scroll member 7 A pin ring mechanism 15 is provided as a drive transmission mechanism for transmitting a driving force from the member 7 to the driven scroll member 9.
ハウジング3は、略円筒形状を有している。ハウジング3には、モータ5を収容するモータ収容部3aと、モータ収容部3aの外周に形成された冷却フィン3bと、各スクロール部材7、9を収容するスクロール収容部3cと、スクロール収容部3cの端部に形成され、圧縮後の空気を吐出する吐出口3dとが設けられている。また、ハウジング3には、空気を吸入する空気吸入口(不図示)が設けられている。スクロール収容部3cは、各スクロール部材7,9の軸線方向に垂直な分割面Pで分割されている。分割面Pは、モータ収容部3aと接するスクロール収容部3cの側面部3eから周面部3fを切り離す位置に位置している。分割面Pは、ボルト3gを通して固定することによって締結される。
The housing 3 has a substantially cylindrical shape. The housing 3 includes a motor housing portion 3a for housing the motor 5, cooling fins 3b formed on the outer periphery of the motor housing portion 3a, a scroll housing portion 3c for housing the scroll members 7 and 9, and a scroll housing portion 3c. And an outlet 3d for discharging compressed air. The housing 3 is also provided with an air inlet (not shown) for drawing air. The scroll housing portion 3 c is divided by a division plane P perpendicular to the axial direction of each of the scroll members 7 and 9. The divided surface P is located at a position where the circumferential surface 3f is separated from the side surface 3e of the scroll housing 3c in contact with the motor housing 3a. The parting plane P is fastened by fixing it through the bolt 3g.
モータ5は、図示しない電力供給源から電力が供給されることによって駆動される。モータ5の回転制御は、図示しない制御部からの指令によって行われる。モータ5は、ステータ5aと、ロータ5bとを有している。ステータ5aはモータ収容部3aの内周側に固定されている。ロータ5bは、駆動側回転軸線CL1回りに回転する。ロータ5bには、駆動側回転軸線CL1上に延在する駆動軸6が接続されている。駆動軸6は、駆動側スクロール部材7の第1駆動側軸部71cとボルト6aを介して接続されている。駆動軸6は、第1駆動側軸受11を介してハウジング3に対して回動自在に設けられている。一方、駆動側スクロール部材7に対して反対側の駆動軸6の端部には、ハウジング3との間で駆動軸6を回動可能に支持する後端軸受17が設けられている。
The motor 5 is driven by supplying power from a power supply source (not shown). The rotation control of the motor 5 is performed by a command from a control unit (not shown). The motor 5 has a stator 5a and a rotor 5b. The stator 5a is fixed to the inner peripheral side of the motor housing 3a. The rotor 5b rotates around the drive side rotation axis CL1. The drive shaft 6 extending on the drive side rotation axis line CL1 is connected to the rotor 5b. The drive shaft 6 is connected to the first drive side shaft portion 71 c of the drive side scroll member 7 via a bolt 6 a. The drive shaft 6 is rotatably provided with respect to the housing 3 via the first drive bearing 11. On the other hand, at the end of the drive shaft 6 opposite to the drive-side scroll member 7, a rear end bearing 17 for rotatably supporting the drive shaft 6 with the housing 3 is provided.
駆動側スクロール部材7は、モータ5側に位置する第1駆動側スクロール部71と、吐出口3d側に位置する第2駆動側スクロール部72とを備えている。第1駆動側スクロール部71は、第1駆動側端板71aと複数の第1駆動側壁体71bを備えている。第1駆動側端板71aは、駆動軸6に接続された第1駆動側軸部71cに接続されており、駆動側回転軸線CL1に対して直交する方向に延在している。第1駆動側端板71aは、平面視した場合に略円板形状とされている。
The drive-side scroll member 7 includes a first drive-side scroll portion 71 located on the motor 5 side and a second drive-side scroll portion 72 located on the discharge port 3 d side. The first drive side scroll portion 71 includes a first drive side end plate 71a and a plurality of first drive side walls 71b. The first drive side end plate 71a is connected to a first drive side shaft 71c connected to the drive shaft 6, and extends in a direction orthogonal to the drive side rotational axis CL1. The first drive side end plate 71a has a substantially disc shape in a plan view.
図2は、第1駆動側スクロール部71の複数の第1駆動側壁体71bを示した上面図である。第1駆動側端板71a上には、渦巻状とされた第1駆動側壁体71bが3つ、すなわち3条設けられている。3条とされた第1駆動側壁体71bは、駆動側回転軸線CL1回りに等間隔にて配置されている。各第1駆動側壁体71bの巻き終わり部71eは、それぞれ、他の壁部に固定されておらず、独立している。すなわち、各巻き終わり部71e同士を接続して補強するような壁部は設けられていない。
FIG. 2 is a top view showing the plurality of first drive side walls 71b of the first drive side scroll portion 71. As shown in FIG. On the first drive side end plate 71a, three, ie, three, first drive side wall bodies 71b in a spiral shape are provided. The first drive side wall 71b in the form of three strips is disposed at equal intervals around the drive side rotation axis CL1. The wound end portions 71e of the first drive side walls 71b are not fixed to the other wall portions but are independent. That is, no wall portion is provided to connect and reinforce the respective winding end portions 71e.
図1に戻って、第2駆動側スクロール部72は、第2駆動側端板72aと、複数の第2駆動側壁体72bを備えている。第2駆動側端板72a上には、上述した第1駆動側壁体71b(図2参照)と同様に、3条の第2駆動側壁体72bが設けられている。第2駆動側端板72aには、駆動側回転軸線CL1方向に延在する第2駆動側軸部72cが接続されている。第2駆動側軸部72cは、第2駆動側軸受14を介して、ハウジング3に対して回転自在に設けられている。また、第2駆動側軸部72cとハウジング3との間には、高圧空間と低圧空間とを仕切るシール部材14aが設けられている。第2駆動側軸部72cには、駆動側回転軸線CL1に沿って吐出ポート72dが形成されている。
Returning to FIG. 1, the second drive side scroll portion 72 includes a second drive side end plate 72 a and a plurality of second drive side walls 72 b. Similar to the first drive side wall 71b (see FIG. 2) described above, three second drive side walls 72b are provided on the second drive side end plate 72a. A second drive side shaft portion 72c extending in the direction of the drive side rotation axis CL1 is connected to the second drive side end plate 72a. The second drive side shaft portion 72 c is provided rotatably with respect to the housing 3 via the second drive side bearing 14. In addition, between the second drive side shaft portion 72c and the housing 3, a seal member 14a is provided which divides the high pressure space and the low pressure space. The second drive side shaft portion 72c is formed with a discharge port 72d along the drive side rotational axis CL1.
第1駆動側スクロール部71と第2駆動側スクロール部72とは、各駆動側壁体71b、72bの先端(自由端)同士が向かい合った状態で固定されている。第1駆動側スクロール部71及び第2駆動側スクロール部72にはそれぞれ、半径方向外側に突出するように形成されたフランジ部73a、73b(特に区別しない場合、フランジ部73と称することがある。)が設けられている。フランジ部73は、円周方向に複数設けられている。各フランジ部73はピン31により締結されている。各駆動側スクロール部71、72は、ピン31によって固定されているので、軸方向(図1において水平方向)に沿って離間する方向に移動が許容される。なお、各フランジ部73及びピン31が、壁体固定部に相当する。
The first drive side scroll portion 71 and the second drive side scroll portion 72 are fixed in a state where tips (free ends) of the drive side walls 71 b and 72 b face each other. The first drive-side scroll portion 71 and the second drive-side scroll portion 72 respectively have flange portions 73a and 73b formed to project outward in the radial direction. ) Is provided. A plurality of flanges 73 are provided in the circumferential direction. Each flange portion 73 is fastened by a pin 31. Each of the drive scrolls 71 and 72 is fixed by the pin 31, so that movement in a direction away from each other in the axial direction (horizontal direction in FIG. 1) is permitted. Each flange portion 73 and the pin 31 correspond to a wall fixing portion.
従動側スクロール部材9は、駆動側回転軸線CL1方向に対し、垂直方向に延びる従動側端板91と、従動側端板91の両面にそれぞれ設けられた複数の第1従動側壁体92a及び複数の第2従動側壁体92b(特に区別しない場合、従動側壁体92と称することがある。)とを有している。従動側端板91の中央には、貫通孔91aが形成され、圧縮後の空気が吐出ポート72dへと流れるように構成される。従動側スクロール部材9は、従動側回転軸線CL2の回りに回転する。複数の第1従動側壁体92aは、従動側端板91のモータ5側に向かう面に設置され、第1駆動側スクロール部71の第1駆動側壁体71bと噛み合わされる。また、複数の第2従動側壁体92bは、従動側端板91の吐出口3d側に向かう面に設置され、第2駆動側スクロール部72の第2駆動側壁体72bと噛み合わされる。各従動側壁体92a、92bとその従動側壁体に対応する駆動側壁体71b、72bとの間で圧縮空間CSを形成する。
The driven scroll member 9 includes a driven end plate 91 extending in a direction perpendicular to the direction of the drive rotation axis CL1, and a plurality of first driven side walls 92a provided on both surfaces of the driven end plate 91 and a plurality of first driven side walls 92a. And a second driven side wall 92b (sometimes referred to as a driven side wall 92 unless otherwise specified). A through hole 91a is formed at the center of the driven end plate 91, and air after compression is configured to flow to the discharge port 72d. The driven scroll member 9 rotates about the driven rotation axis CL2. The plurality of first driven side walls 92 a are disposed on the surface of the driven side end plate 91 facing the motor 5, and are engaged with the first driving side walls 71 b of the first drive side scroll portion 71. The plurality of second driven side walls 92b are disposed on the surface of the driven side end plate 91 facing the discharge port 3d, and are engaged with the second driving side walls 72b of the second drive side scroll portion 72. A compression space CS is formed between the driven side walls 92a and 92b and the driving side walls 71b and 72b corresponding to the driven side walls.
図3は、従動側スクロール部材9の複数の第1従動側壁体92aを示した平面図である。第1従動側壁体92aは、3つ、すなわち3条設けられている。各第1従動側壁体92aは、従動側回転軸線CL2回りに等間隔に配置される。各第1従動側壁体92aの周方向外側の端部である巻き終わり部92eは、自由端である。各第1従動側壁体92aの巻き終わり部92e付近には、サポート部材4が固定されるサポート部材固定部としての固定部92cが設けられ、固定部92bには、サポート部材4を締結するためのボルト穴92dが形成されている。なお、第2従動側壁体92bについても、同様の構成を有しているので、説明を省略する。
FIG. 3 is a plan view showing the plurality of first driven side walls 92 a of the driven scroll member 9. The first driven side wall 92a is provided in three or three rows. The first driven side walls 92a are arranged at equal intervals around the driven side rotation axis CL2. An end portion 92e which is a circumferential outer end of each first driven side wall 92a is a free end. A fixing portion 92c as a support member fixing portion to which the support member 4 is fixed is provided in the vicinity of the winding end portion 92e of each first driven side wall 92a, and the fixing portion 92b is used to fasten the support member 4 Bolt holes 92d are formed. The second driven side wall 92b also has the same configuration, and thus the description thereof is omitted.
図1に示すように、サポート部材4は、モータ5側に位置する第1サポート部材41及び吐出口3d側に位置する第2サポート部材42を有している。各サポート部材4は、従動側スクロール部材9の従動側回転軸線CL2方向における両端にそれぞれ設けられている。第1サポート部材41は、第1従動側壁体92aの固定部92cとボルト41aを介して固定されている。ボルト41aは、図3に示したように、固定部92cのボルト穴92dに締結される。第2サポート部材42も同様に、第2従動側壁体92bの固定部92cとボルト42aを介して固定されている。第1サポート部材41と従動側スクロール部材9との間には、第1駆動側スクロール部71が挟まれている。したがって、第1サポート部材41に対向して第1駆動側端板71aが配置されている。
As shown in FIG. 1, the support member 4 has a first support member 41 located on the motor 5 side and a second support member 42 located on the discharge port 3 d side. Each support member 4 is provided at each end of the driven scroll member 9 in the direction of the driven rotation axis CL2. The first support member 41 is fixed via the fixing portion 92c of the first driven side wall 92a and the bolt 41a. The bolt 41a is fastened to the bolt hole 92d of the fixing portion 92c as shown in FIG. Similarly, the second support member 42 is fixed via the fixing portion 92c of the second driven side wall 92b and the bolt 42a. The first drive-side scroll portion 71 is sandwiched between the first support member 41 and the driven-side scroll member 9. Therefore, the first drive side end plate 71 a is disposed to face the first support member 41.
第1サポート部材41の中心軸側には、第1サポート部材用軸部41bが設けられている。第1サポート部材用軸部41bは、第1サポート部材用軸受41cを介してハウジング3に対して固定されている。また、第2サポート部材42の中心軸側には、第2サポート部材用軸部42bが設けられている。第2サポート部材用軸部42bは、第2サポート部材用軸受42cを介してハウジング3に対して固定されている。これにより、各サポート部材41,42を介して、従動側スクロール部材9は、従動側回転軸線CL2回りに回転するようになっている。
A first support member shaft 41 b is provided on the central axis side of the first support member 41. The first support member shaft portion 41 b is fixed to the housing 3 via the first support member bearing 41 c. In addition, on the central axis side of the second support member 42, a second support member shaft portion 42b is provided. The second support member shaft portion 42 b is fixed to the housing 3 via a second support member bearing 42 c. Thus, the driven scroll member 9 is configured to rotate around the driven rotation axis CL2 via the support members 41 and 42.
図4は、モータ側からみた第1サポート部材41の側面図である。第1サポート部材41は、各第1従動側壁体92aの先端を固定する位置ごとに各第1従動側壁体92bの外周位置まで半径方向外方に延在する半径方向延長部41dを有している。半径方向延長部41d間の領域は各第1従動側壁体92bの外周側まで延在しないような形状となっており、軽量化を図っている。本形態では、半径方向延長部41dは、等角度間隔で3方向に設けられている。なお、図4では、第1サポート部材41と第1駆動側スクロール部71が示されており、従動側スクロール部材9は示されていない。
FIG. 4 is a side view of the first support member 41 viewed from the motor side. The first support member 41 has a radially extending portion 41d extending radially outward to the outer peripheral position of each first driven side wall 92b at each position where the tip of each first driven side wall 92a is fixed. There is. The region between the radially extending portions 41d is shaped so as not to extend to the outer peripheral side of each first driven side wall 92b, thereby achieving weight reduction. In the present embodiment, the radially extending portions 41 d are provided in three directions at equal angular intervals. In FIG. 4, the first support member 41 and the first drive side scroll portion 71 are shown, and the driven side scroll member 9 is not shown.
ピンリング機構15は、第1サポート部材41に設けられたリング部材15aと、第1駆動側端板71aに設けられたピン部材15bとを有している。ピンリング機構15は、各スクロール部材7、9が同期して公転旋回運動するように駆動側スクロール部材7から従動側スクロール部材9に駆動力を伝達する同期駆動機構として用いられる。
The pin ring mechanism 15 has a ring member 15 a provided on the first support member 41 and a pin member 15 b provided on the first drive side end plate 71 a. The pin ring mechanism 15 is used as a synchronous drive mechanism for transmitting the driving force from the drive side scroll member 7 to the driven side scroll member 9 so that the scroll members 7 and 9 rotate and orbit synchronously.
図5は、第2サポート部材42の要部拡大図である。なお、第1サポート部材41の構成は、下記説明する部分については第2サポート部材42の構成と同一であるので説明を省略し、第2サポート部材42で代表して説明する。第2サポート部材42には、第2駆動側端板72aに対し従動側回転軸線CL2方向の外側に位置するサポート部材本体42dが設けられている。サポート部材本体42dの従動側スクロール部材9に対向する面には、従動側スクロール部材9の固定部92cに向かって突出する突出部42eが設けられている。突出部42eは、固定部92cの先端面としての固定面92fまで延び、固定面92fと接触して固定される。従動側スクロール部材9の固定面92fは、従動側スクロール部材9の従動側壁体92の先端面である歯先面92gと同一平面上に位置している。また、突出部42eには、ボルト通し孔42fが形成され、ボルト42aが締結される。これにより、第2サポート部材42と第2従動側壁体92bとが締結される。
FIG. 5 is an enlarged view of an essential part of the second support member 42. As shown in FIG. The configuration of the first support member 41 is the same as that of the second support member 42 in the following description, and therefore the description thereof is omitted, and the second support member 42 will be representatively described. The second support member 42 is provided with a support member main body 42d located outside the second drive side end plate 72a in the direction of the driven side rotation axis CL2. On the surface of the support member main body 42 d facing the driven scroll member 9, a protrusion 42 e is provided which protrudes toward the fixed portion 92 c of the driven scroll member 9. The protrusion 42e extends to a fixing surface 92f as a tip end surface of the fixing portion 92c, and is fixed in contact with the fixing surface 92f. The fixed surface 92 f of the driven scroll member 9 is located on the same plane as the tooth tip surface 92 g which is the tip end surface of the driven side wall 92 of the driven scroll member 9. Further, a bolt through hole 42f is formed in the protrusion 42e, and the bolt 42a is fastened. Thereby, the second support member 42 and the second driven sidewall 92b are fastened.
次に、両回転スクロール型圧縮機1の動作を説明する。
モータ5によってロータ5bに接続された駆動軸6が駆動側回転軸線CL1回りに回転させられると、駆動軸6に接続された第1駆動側軸部71cも回転し、これにより駆動側スクロール部材7が駆動側回転軸線CL1回りに回転する。駆動側スクロール部材7が回転すると、駆動力がピンリング機構15を介してサポート部材41から従動側スクロール部材9へと伝達され、従動側スクロール部材9が従動側回転軸線CL2回りに回転する。このとき、ピンリング機構15のピン部材15bがリング部材15aに対して接触しつつ移動することによって、各スクロール部材7,9が同じ方向に同一角速度で自転運動を行う。各スクロール部材7、9が同じ方向に同一角速度で自転運動を行うと、ハウジング3の吸入口から吸い込まれた空気が各スクロール部材7、9の外周側から吸入され、各スクロール部材7、9によって圧縮空間が形成された圧縮室に取り込まれる。そして、第1駆動側壁体71bと第1従動側壁体92aとによって形成された圧縮室と、第2駆動側壁体72bと第2従動側壁体92bとによって形成された圧縮室とが別々に圧縮される。それぞれの圧縮室は中心側に移動するに従って容積が減少し、これに伴い空気が圧縮される。第1駆動側壁体71bと第1従動側壁体92aとによって圧縮された空気は、従動側端板91に形成された貫通孔91aを通り、第2駆動側壁体72bと第2従動側壁体92bとによって圧縮された空気と合流し、合流後の空気が吐出ポート72dを通り、ハウジング3の吐出口3dから外部へと吐出される。吐出された圧縮空気は、図示しない内燃機関へと導かれ、燃焼用空気として用いられる。 Next, the operation of the dualrotation scroll compressor 1 will be described.
When thedrive shaft 6 connected to the rotor 5 b is rotated about the drive side rotation axis CL 1 by the motor 5, the first drive side shaft 71 c connected to the drive shaft 6 also rotates, whereby the drive side scroll member 7. Rotates about the drive side rotation axis line CL1. When the drive-side scroll member 7 rotates, the drive force is transmitted from the support member 41 to the driven-side scroll member 9 through the pin ring mechanism 15, and the driven-side scroll member 9 rotates about the driven-side rotation axis CL2. At this time, as the pin member 15b of the pin ring mechanism 15 moves while being in contact with the ring member 15a, the scroll members 7 and 9 rotate at the same angular velocity in the same direction. When the scroll members 7 and 9 rotate at the same angular velocity in the same direction, the air sucked from the suction port of the housing 3 is drawn from the outer peripheral side of the scroll members 7 and 9. The compression space is taken into the formed compression chamber. The compression chamber formed by the first drive side wall 71b and the first driven side wall 92a and the compression chamber formed by the second drive side wall 72b and the second driven side wall 92b are separately compressed. Ru. The volume of each compression chamber decreases as it moves toward the center, and the air is compressed accordingly. The air compressed by the first drive side wall 71b and the first driven side wall 92a passes through the through hole 91a formed in the driven side end plate 91, and the second drive side wall 72b and the second driven side wall 92b The air that has been compressed is merged with the air that has been compressed, and the merged air passes through the discharge port 72 d and is discharged from the discharge port 3 d of the housing 3 to the outside. The discharged compressed air is led to an internal combustion engine (not shown) and used as combustion air.
モータ5によってロータ5bに接続された駆動軸6が駆動側回転軸線CL1回りに回転させられると、駆動軸6に接続された第1駆動側軸部71cも回転し、これにより駆動側スクロール部材7が駆動側回転軸線CL1回りに回転する。駆動側スクロール部材7が回転すると、駆動力がピンリング機構15を介してサポート部材41から従動側スクロール部材9へと伝達され、従動側スクロール部材9が従動側回転軸線CL2回りに回転する。このとき、ピンリング機構15のピン部材15bがリング部材15aに対して接触しつつ移動することによって、各スクロール部材7,9が同じ方向に同一角速度で自転運動を行う。各スクロール部材7、9が同じ方向に同一角速度で自転運動を行うと、ハウジング3の吸入口から吸い込まれた空気が各スクロール部材7、9の外周側から吸入され、各スクロール部材7、9によって圧縮空間が形成された圧縮室に取り込まれる。そして、第1駆動側壁体71bと第1従動側壁体92aとによって形成された圧縮室と、第2駆動側壁体72bと第2従動側壁体92bとによって形成された圧縮室とが別々に圧縮される。それぞれの圧縮室は中心側に移動するに従って容積が減少し、これに伴い空気が圧縮される。第1駆動側壁体71bと第1従動側壁体92aとによって圧縮された空気は、従動側端板91に形成された貫通孔91aを通り、第2駆動側壁体72bと第2従動側壁体92bとによって圧縮された空気と合流し、合流後の空気が吐出ポート72dを通り、ハウジング3の吐出口3dから外部へと吐出される。吐出された圧縮空気は、図示しない内燃機関へと導かれ、燃焼用空気として用いられる。 Next, the operation of the dual
When the
従動側スクロール部材9の第1従動側壁体92a及び第2従動側壁体92bの各歯先面92gは、それぞれ同一平面上に形成され、固定面92fもその同一平面に含まれる。したがって、歯先面92gが平坦となり、歯丈が略同一となるため加工が容易となる。複雑な加工を必要とせず、加工性を向上できる。一方で、サポート部材4に突出部42eが設けられることになるが、サポート部材4の加工には、従動側スクロール部材9のような高精度は要求されない。加工も比較的容易であるため、サポート部材4に突出部42eを設けることで両回転スクロール型圧縮機1の加工性が向上する。よって省コストな構成を実現できる。
The tooth top surfaces 92g of the first driven side wall 92a and the second driven side wall 92b of the driven scroll member 9 are formed on the same plane, and the fixing surface 92f is also included in the same plane. Therefore, since the tooth top surface 92g becomes flat and the tooth heights become substantially the same, machining becomes easy. Processability can be improved without the need for complicated processing. On the other hand, although the protrusion 42 e is provided in the support member 4, the processing of the support member 4 is not required to have high accuracy as in the driven scroll member 9. Since the processing is also relatively easy, by providing the protrusion 42 e on the support member 4, the processability of the rotary scroll compressor 1 is improved. Therefore, a cost-saving configuration can be realized.
本発明は、上述した形態に限定されることなく、種々の形態にて実施することができる。例えば、上述した形態において、サポート部材4に突出部42eを設けた形態で説明したがこれに限られない。
例えば、図6に示すように、突出部42eに代えてサポート部材4Aと従動側スクロール部材9との間に調整部材4aを設けてもよい。図6は、変形例に係る両回転スクロール型圧縮機1Aの第2サポート部材42Aの要部を拡大した要部拡大図である。本変形例は、上述した形態とは突出部42eに代えて調整部材4Aaを設ける点で異なり、その他の構成は同一である。なお、変形例において、上述した形態と同一の構成については同一の参照符号を付して説明を省略する。また、上述した形態と同様、変形例における第1サポート部材の構成は、下記説明する部分について第2サポート部材42Aの構成と同一であるので説明を省略し、第2サポート部材42Aで代表して説明する。 The present invention is not limited to the above-described embodiment, and can be implemented in various embodiments. For example, in the embodiment described above, thesupport member 4 is described as being provided with the protrusion 42 e, but the present invention is not limited to this.
For example, as shown in FIG. 6, the adjustment member 4a may be provided between thesupport member 4A and the driven scroll member 9 instead of the protrusion 42e. FIG. 6 is an enlarged view of an essential part of the second support member 42A of the dual rotation scroll compressor 1A according to the modification. The present modification differs from the above-described embodiment in that the adjustment member 4Aa is provided instead of the protrusion 42e, and the other configuration is the same. In the modification, the same components as those in the embodiment described above are denoted by the same reference numerals, and the description thereof will be omitted. Further, as in the embodiment described above, the configuration of the first support member in the modification is the same as the configuration of the second support member 42A in the parts described below, so the description is omitted, and the second support member 42A is represented explain.
例えば、図6に示すように、突出部42eに代えてサポート部材4Aと従動側スクロール部材9との間に調整部材4aを設けてもよい。図6は、変形例に係る両回転スクロール型圧縮機1Aの第2サポート部材42Aの要部を拡大した要部拡大図である。本変形例は、上述した形態とは突出部42eに代えて調整部材4Aaを設ける点で異なり、その他の構成は同一である。なお、変形例において、上述した形態と同一の構成については同一の参照符号を付して説明を省略する。また、上述した形態と同様、変形例における第1サポート部材の構成は、下記説明する部分について第2サポート部材42Aの構成と同一であるので説明を省略し、第2サポート部材42Aで代表して説明する。 The present invention is not limited to the above-described embodiment, and can be implemented in various embodiments. For example, in the embodiment described above, the
For example, as shown in FIG. 6, the adjustment member 4a may be provided between the
第2サポート部材42Aには、第2駆動側端板72aに対し従動側回転軸線CL2方向の外側に位置するサポート部材本体42Adが設けられ、サポート部材本体42Adと従動側スクロール部材9との間には調整部材4Aaが設けられている。調整部材4Aaとしては、例えば、金属製の円筒形状とされたカラーが用いられる。サポート部材本体42Ad及び調整部材4Aaには、ボルト42Aaが挿通されるボルト通し孔42Af、4a1がそれぞれ形成されている。ボルト42Aaにより調整部材(第2サポート調整部材)4Aaを介して第2サポート部材42Aと駆動側スクロール部材9とが締結される。
The second support member 42A is provided with a support member main body 42Ad located outside the second drive side end plate 72a in the direction of the driven side rotation axis line CL2, and between the support member main body 42Ad and the driven side scroll member 9 The adjustment member 4Aa is provided. As the adjustment member 4Aa, for example, a metal cylindrical collar is used. In the support member main body 42Ad and the adjustment member 4Aa, bolt through holes 42Af and 4a1 through which the bolts 42Aa are inserted are respectively formed. The second support member 42A and the drive-side scroll member 9 are fastened by the bolt 42Aa through the adjustment member (second support adjustment member) 4Aa.
調整部材4Aaがサポート部材4Aとは別個の部材として設けられているため、サポート部材4Aの加工が容易となる。また、各スクロール部材7、9の向かい合う端板と壁体の先端面との間の隙間の調整を調整部材4Aの高さを調整することにより容易に実施できる。駆動側スクロール部材7や、従動側スクロール部材9、サポート部材4はわずかながら寸法誤差を有するので、それらを組み合わせることで生じる隙間のばらつきを調整部材4Aの変更により容易に対応できる。
Since the adjustment member 4Aa is provided as a separate member from the support member 4A, processing of the support member 4A is facilitated. Further, the adjustment of the gap between the facing end plates of the scroll members 7 and 9 and the tip end surface of the wall can be easily performed by adjusting the height of the adjusting member 4A. Since the drive-side scroll member 7, the driven-side scroll member 9, and the support member 4 have slight dimensional errors, it is possible to easily cope with the variation in the clearance caused by combining them by changing the adjustment member 4A.
また、上述した形態では、各従動側壁体92の巻き終わり部92eに固定部92cが設けられ、サポート部材4が固定部92cに固定されることを説明したがこれに限られない。例えば、一部の従動側壁体92の巻き終わり部92eに固定部92cを設け、サポート部材4を固定してもよい。また、上述した形態では、第1サポート部材41及び第2サポート部材42を設けることを説明したがこれに限られない。いずれか一方のサポート部材を設けるように構成してもよい。
In the embodiment described above, the fixing portion 92c is provided at the winding end portion 92e of each driven side wall 92, and the support member 4 is fixed to the fixing portion 92c. However, the invention is not limited thereto. For example, the fixing portion 92c may be provided at the winding end portion 92e of some of the driven side walls 92, and the support member 4 may be fixed. Further, in the embodiment described above, the provision of the first support member 41 and the second support member 42 has been described, but the present invention is not limited to this. Either one of the support members may be provided.
また、第1サポート部材及び第2サポート部材を設ける形態において、各サポート部材の従動側スクロール部材との締結部分を同一の構成とする説明をしたがこれに限られない。例えば、第2サポート部材としてサポート部材本体と調整部材4Aaを設け、第1サポート部材として突出部(図5の符号42eと同様の構成)を有するサポート部材本体を設けてもよい。調整部材4Aaは1つ設けるに留め、他方は突出部が形成されたサポート部材4とすることで部品点数を抑えつつ調整部材4Aaで隙間の調整も可能となる。また、調整部材を採用すると強度が低下するが、吐出側にはサポート部材だけしか無く重量が軽減されるため、モータ側より設置が容易となる。なお、第1サポート部材に調整部材4Aaを設け、第2サポート部材に突出部を有するサポート部材を設ける構成としてもよい。
Further, in the embodiment in which the first support member and the second support member are provided, the fastening portion of each support member to the driven scroll member has been described as having the same configuration, but the present invention is not limited thereto. For example, a support member main body and an adjustment member 4Aa may be provided as a second support member, and a support member main body having a protrusion (a configuration similar to the reference numeral 42e in FIG. 5) may be provided as a first support member. One adjustment member 4Aa is provided, and the other is a support member 4 having a projection formed thereon, so that it is possible to adjust the gap with the adjustment member 4Aa while suppressing the number of parts. In addition, the use of the adjustment member reduces the strength, but only the support member is on the discharge side, and the weight is reduced, so that the installation becomes easier than on the motor side. The first support member may be provided with the adjustment member 4Aa, and the second support member may be provided with a support member having a protrusion.
なお、上述した各実施形態および各変形例では、過給機として両回転スクロール型圧縮
機を用いることとしたが、本発明はこれに限定されるものではなく、流体を圧縮するもの
であれば広く利用することができ、例えば空調機械において使用される冷媒圧縮機として
用いることもできる。また、本発明のスクロール型圧縮機を鉄道車両用のブレーキシステムとして空気の力を利用した空制装置に適用してもよい。 In each embodiment and each modification mentioned above, although it was decided to use a double rotation scroll type compressor as a supercharger, the present invention is not limited to this, as long as the fluid is compressed. It can be widely used, and can also be used, for example, as a refrigerant compressor used in an air conditioning machine. In addition, the scroll compressor of the present invention may be applied to a pneumatic control system using the force of air as a brake system for a railway vehicle.
機を用いることとしたが、本発明はこれに限定されるものではなく、流体を圧縮するもの
であれば広く利用することができ、例えば空調機械において使用される冷媒圧縮機として
用いることもできる。また、本発明のスクロール型圧縮機を鉄道車両用のブレーキシステムとして空気の力を利用した空制装置に適用してもよい。 In each embodiment and each modification mentioned above, although it was decided to use a double rotation scroll type compressor as a supercharger, the present invention is not limited to this, as long as the fluid is compressed. It can be widely used, and can also be used, for example, as a refrigerant compressor used in an air conditioning machine. In addition, the scroll compressor of the present invention may be applied to a pneumatic control system using the force of air as a brake system for a railway vehicle.
1,1A 両回転スクロール型圧縮機
3 ハウジング
4 サポート部材
4Aa 調整部材(第2サポート調整部材)
5 モータ(駆動部)
7 駆動側スクロール部材
9 従動側スクロール部材
41 第1サポート部材
42 第2サポート部材
42d、42Ad サポート部材本体
42e 突出部
71 第1駆動側スクロール部
71a 第1駆動側端板
71b 第1駆動側壁体
72 第2駆動側スクロール部
72a 第2駆動側端板
72b 第2駆動側壁体
73 フランジ部(壁体固定部)
91 従動側端板
92a 第1従動側壁体
92b 第2従動側壁体
92c 固定部(サポート部材固定部)
92f 固定面
92g 歯先面
CL1 駆動側回転軸線
CL2 従動側回転軸線 1, 1 A Double-RotatingScroll Type Compressor 3 Housing 4 Support Member 4Aa Adjustment Member (Second Support Adjustment Member)
5 Motor (drive unit)
7 driveside scroll member 9 driven side scroll member 41 first support member 42 second support member 42d, 42Ad support member main body 42e protrusion 71 first drive side scroll 71a first drive side end plate 71b first drive side wall 72 2nd drive side scroll part 72a 2nd drive side end plate 72b 2nd drive side wall body 73 flange part (wall body fixed part)
91 drivenside end plate 92a first driven side wall 92b second driven side wall 92c fixing portion (support member fixing portion)
92f Fixedsurface 92g Tip surface CL1 Drive side rotation axis CL2 Drive side rotation axis
3 ハウジング
4 サポート部材
4Aa 調整部材(第2サポート調整部材)
5 モータ(駆動部)
7 駆動側スクロール部材
9 従動側スクロール部材
41 第1サポート部材
42 第2サポート部材
42d、42Ad サポート部材本体
42e 突出部
71 第1駆動側スクロール部
71a 第1駆動側端板
71b 第1駆動側壁体
72 第2駆動側スクロール部
72a 第2駆動側端板
72b 第2駆動側壁体
73 フランジ部(壁体固定部)
91 従動側端板
92a 第1従動側壁体
92b 第2従動側壁体
92c 固定部(サポート部材固定部)
92f 固定面
92g 歯先面
CL1 駆動側回転軸線
CL2 従動側回転軸線 1, 1 A Double-Rotating
5 Motor (drive unit)
7 drive
91 driven
92f Fixed
Claims (6)
- 第1駆動側端板及び前記第1駆動側端板の中心回りに所定角度間隔に設けられた複数の第1駆動側壁体を有する第1駆動側スクロール部と、第2駆動側端板、及び前記第2駆動側端板の中心回りに所定角度間隔に設けられた複数の第2駆動側壁体を有する第2駆動側スクロール部と、前記第1駆動側壁体及び前記第2駆動側壁体が互いに向かい合う状態で前記第1駆動側スクロール部及び前記第2駆動側スクロール部を固定する壁体固定部と、を有し、駆動部から伝達された駆動力により回転駆動される駆動側スクロール部材と、
前記第1駆動側壁体及び前記第2駆動側壁体の間に位置する従動側端板と、前記従動側端板の一面に対し中心回りに所定角度間隔に設けられて前記複数の第1駆動側壁体のそれぞれに対応して設けられた複数の第1従動側壁体と、前記従動側端板の他面に対し中心回りに所定角度間隔に設けられて前記複数の第2駆動側壁体のそれぞれに対応して設けられた複数の第2従動側壁体と、を有し、各前記従動側壁体と各前記従動側壁体に対応する駆動側壁体との間で圧縮空間を形成する従動側スクロール部材と、
前記駆動側スクロール部材から前記従動側スクロール部材に駆動力を伝達する駆動伝達機構と、
前記複数の第1従動側壁体又は前記複数の第2従動側壁体の歯先面に固定されて前記従動側スクロール部材とともに回転するサポート部材と、
を備えた両回転スクロール型圧縮機であって、
前記従動側壁体の歯先面には、前記サポート部材が固定されるサポート部材固定部が設けられ、前記サポート部材固定部の固定面が、前記歯先面と同一の平面内に位置している両回転スクロール型圧縮機。 A first drive side scroll portion having a first drive side end plate and a plurality of first drive side walls provided at predetermined angular intervals around the center of the first drive side end plate; a second drive side end plate; A second drive side scroll portion having a plurality of second drive side walls provided at predetermined angular intervals around the center of the second drive side end plate, the first drive side wall and the second drive side wall mutually A drive-side scroll member that has a wall fixing portion that fixes the first drive-side scroll portion and the second drive-side scroll portion in a state of facing each other, and is rotationally driven by the driving force transmitted from the drive portion;
A driven end plate positioned between the first drive side wall and the second drive side wall, and the plurality of first drive side walls provided at predetermined angular intervals around a center of one surface of the driven side end plate A plurality of first driven side walls provided corresponding to each of the bodies and a predetermined angular interval around the center with respect to the other surface of the driven side plate are provided in each of the plurality of second driving side walls. A driven scroll member having a plurality of second driven side walls provided correspondingly, and forming a compression space between each of the driven side walls and a driving side wall corresponding to each of the driven side walls; ,
A drive transmission mechanism for transmitting a driving force from the drive side scroll member to the driven side scroll member;
A support member that is fixed to the addendum surfaces of the plurality of first driven side walls or the plurality of second driven side walls and rotates with the driven scroll member;
A double-turn scroll compressor equipped with
A support member fixing portion to which the support member is fixed is provided on a tip surface of the driven side wall body, and a fixing surface of the support member fixing portion is located in the same plane as the tip surface. Double-rotating scroll compressor. - 前記サポート部材には、前記第1駆動側端板又は前記第2駆動側端板の軸方向外側に位置するサポート部材本体が設けられ、前記サポート部材本体には、前記サポート部材固定部に向かって突出する突出部が設けられている請求項1に記載の両回転スクロール型圧縮機。 The support member is provided with a support member main body located axially outside the first drive side end plate or the second drive side end plate, and the support member main body faces the support member fixing portion. The dual-rotating scroll compressor according to claim 1, wherein a projecting protrusion is provided.
- 前記サポート部材には、前記第1駆動側端板又は前記第2駆動側端板の軸方向外側に位置するサポート部材本体と、前記サポート部材本体及び前記サポート固定部の間に設置された調整部材と、が設けられている請求項1に記載の両回転スクロール型圧縮機。 In the support member, a support member main body located axially outside of the first drive side end plate or the second drive side end plate, and an adjustment member installed between the support member main body and the support fixing portion The twin-rotating scroll compressor according to claim 1, wherein and are provided.
- 前記サポート部材は、前記複数の第1従動側壁体又は前記複数の第2従動側壁体のそれぞれの歯先面に固定されている請求項1~3のいずれか一項に記載の両回転スクロール型圧縮機。 The dual-rotating scroll type according to any one of claims 1 to 3, wherein the support member is fixed to a tip surface of each of the plurality of first driven side walls or the plurality of second driven side walls. Compressor.
- 前記サポート部材として、前記複数の第1従動側壁体の歯先面に固定されて前記従動側スクロール部材とともに回転する第1サポート部材と、前記複数の第2従動側壁体の歯先面に固定されて前記従動側スクロール部材とともに回転する第2サポート部材と、が設けられている請求項1~4のいずれか一項に記載の両回転スクロール型圧縮機。 As the support member, a first support member fixed to the addendum surface of the plurality of first driven side walls and rotated with the driven scroll member, and fixed to the addendum surfaces of the plurality of second driven side walls 5. The twin-rotating scroll compressor according to any one of claims 1 to 4, further comprising: a second support member that rotates with the driven scroll member.
- 前記駆動側スクロール部材は、前記第1駆動側スクロール部が前記駆動部により回転駆動されるとともに、前記第2駆動側スクロール部が前記第1駆動側スクロール部から前記壁体固定部を介して伝達された駆動力により回転駆動され、
前記第2サポート部材には、前記第2駆動側端板の軸方向外側に位置する第2サポート部材本体と、前記第2サポート部材本体及び前記サポート固定部の間に設置された第2サポート調整部材と、が設けられている請求項5に記載の両回転スクロール型圧縮機。 In the drive-side scroll member, the first drive-side scroll portion is rotationally driven by the drive portion, and the second drive-side scroll portion is transmitted from the first drive-side scroll portion via the wall fixing portion. It is rotationally driven by the driving force
In the second support member, a second support member main body located on the axially outer side of the second drive side plate, and a second support adjustment provided between the second support member main body and the support fixing portion The dual-rotating scroll compressor according to claim 5, wherein a member is provided.
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JP2017028080A JP2018132034A (en) | 2017-02-17 | 2017-02-17 | Bidirectional rotation scroll type compressor |
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JP2013227906A (en) * | 2012-04-25 | 2013-11-07 | Anest Iwata Corp | Double-rotating scroll expander and power generation device equipped with the expander |
JP2014088775A (en) * | 2012-10-29 | 2014-05-15 | Scroll Giken:Kk | Scroll fluid machine |
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JP2013227906A (en) * | 2012-04-25 | 2013-11-07 | Anest Iwata Corp | Double-rotating scroll expander and power generation device equipped with the expander |
JP2014088775A (en) * | 2012-10-29 | 2014-05-15 | Scroll Giken:Kk | Scroll fluid machine |
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