TWI612260B - Air compression device - Google Patents

Description

Air compression device

The present invention relates to an air compression device that produces compressed air.

Air compression devices that generate compressed air are utilized in a variety of applications. The compressed air generated by the air compression device mounted on a vehicle (for example, a railway vehicle) is also supplied to a brake device that applies a braking force to the vehicle.

Patent Document 1 proposes an air compressing device having a plurality of compressors. If the air compressor has a plurality of compressors, a large amount of compressed air is generated in a short time. In addition, compressed air may also be generated by other compressors after an abnormality has occurred in one of the plurality of compressors.

If the air compression device has a plurality of compressors, a conduit for directing air must be formed for each of the plurality of compressors. Therefore, if the designer wants to load a plurality of compressors into the air compression device, the designer must assign a larger size value to the air compression device. In this case, it may be difficult to mount an air compression device to another device (for example, a vehicle).

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Utility New Case Registration No. 3150077

It is an object of the present invention to provide a compact air compression device having a plurality of compressors.

An air compressing apparatus according to an aspect of the present invention includes: a first compressor including a first dam wall on which a first intake cymbal is formed; and a second compressor including a second cymbal in which a second intake cymbal is formed a wall; and an intake line that guides air to the first intake port and the second port. The first wall and the second wall are opposed to each other. The intake duct is disposed between the first dam wall and the second dam wall.

The above technique can impart a smaller size value to an air compression device having a plurality of compressors.

The objects, features, and advantages of the invention will be apparent from the description and appended claims.

100‧‧‧Air compression device

100A‧‧‧Air compression device

100B‧‧‧Air compression device

210‧‧‧1st compressor

210A‧‧‧1st compressor

210B‧‧‧1st compressor

211‧‧‧1st frame

211A‧‧‧1st frame

212‧‧‧Compressor

213‧‧‧1st wall

213A‧‧‧1st wall

213B‧‧‧1st wall

214‧‧‧1st intake port

214B‧‧‧1st intake port

215‧‧‧1st delivery

216‧‧‧ fixed pedestal

220‧‧‧2nd compressor

220A‧‧‧2nd compressor

220B‧‧‧2nd compressor

221‧‧‧2nd frame

221A‧‧‧2nd frame

222‧‧‧Compression mechanism

223‧‧‧2nd wall

223A‧‧‧2nd wall

223B‧‧‧2nd wall

224‧‧‧2nd intake port

224B‧‧‧2nd intake port

225‧‧‧2nd delivery

230‧‧‧right mechanical shaft

231‧‧‧Cylindrical frame

232‧‧‧Rotary mechanical shaft

240‧‧‧left mechanical shaft

241‧‧‧Cylindrical frame

300‧‧‧Intake line

300B‧‧‧Intake line

310‧‧‧Supervisor

310B‧‧‧Intake pipe

311‧‧‧1st pipe

311B‧‧‧Connected tube

312‧‧‧2nd tube

312B‧‧‧Connected tube

313‧‧‧1st end

314‧‧‧2nd end

315‧‧‧1st end

316‧‧‧2nd end

320‧‧‧Filter device

331‧‧‧Scratch seal

332‧‧‧Trimming seal

333‧‧‧Edge sealing ring

341‧‧‧ base wall

342‧‧‧ front wall

343‧‧‧ right wall

344‧‧‧ left wall

345‧‧‧ top wall

346‧‧‧ bottom wall

400‧‧‧ frame

400B‧‧‧ frame

410‧‧‧ Storage space

420‧‧‧ top board

421‧‧‧ leading edge

422‧‧‧ trailing edge

423‧‧‧ right edge

424‧‧‧Left edge

430‧‧‧floor

440‧‧‧ peripheral wall

450‧‧‧ front mounting wall

451‧‧‧holding board

452‧‧‧Filter cover

453‧‧‧Outer casing

454‧‧‧ rod lock

455‧‧‧Right fan cover

456‧‧‧Left fan cover

460‧‧‧ rear mounting wall

461‧‧‧ Keep board

462‧‧‧Pipe Department

463‧‧Inside Pipeline Department

464‧‧‧External Pipeline Department

465‧‧‧Upper wall

466‧‧‧The lower wall

467‧‧‧ right wall

468‧‧‧ left wall

470‧‧‧1st wall

479‧‧‧Intake wall

480‧‧‧2nd wall

481‧‧‧Support board

482‧‧‧Right support board

483‧‧‧Left support board

484‧‧‧Support board

485‧‧‧ Lower board

486‧‧‧ frame ribs

487‧‧‧ Grid ribs

488‧‧ Ears

490‧‧‧Support framework

491‧‧‧1st pillar

492‧‧‧2nd pillar

493‧‧‧3rd pillar

494‧‧‧4th pillar

495‧‧‧ front beam

496‧‧‧Back beam

500‧‧‧Send the pipeline

500B‧‧‧Send the pipeline

510‧‧‧1st delivery tube

510B‧‧‧1st delivery tube

511‧‧‧ base tube

512‧‧‧1st elbow

513‧‧‧ horizontal tube

514‧‧‧2nd elbow

515‧‧‧ vertical tube

516‧‧‧1st nut

517‧‧‧2nd nut

520‧‧‧2nd delivery tube

520B‧‧‧2nd delivery tube

530‧‧ ‧ Confluence Department

530B‧‧ ‧ Confluence Department

531‧‧‧Management

532‧‧‧Right check valve

533‧‧‧ Left check valve

534‧‧‧1st fixing member

535‧‧‧1st fixing member

540‧‧ ‧ confluence tube

540B‧‧ ‧ confluence tube

551‧‧‧ upper surface

552‧‧‧ lower surface

Behind 553‧‧‧

561‧‧‧1st installation department

562‧‧‧2nd installation department

563‧‧‧Vertical board

564‧‧‧ horizontal board

565‧‧‧1st adjustment structure

566‧‧‧1st adjustment structure

571‧‧‧1st installation department

572‧‧‧Second Installation Department

573‧‧‧Vertical board

574‧‧‧ horizontal board

576‧‧‧1st adjustment structure

580‧‧‧2nd fixed member

581‧‧‧ base end

582‧‧‧ front end

610‧‧‧Cooling device

611‧‧‧ Cooling tube

612‧‧‧ protective cover

620‧‧‧Dehumidification device

630‧‧‧Control device

650‧‧‧right connection

651‧‧‧Right frame members

652‧‧‧Anti-vibration ring

653‧‧‧Anti-vibration ring

660‧‧‧Left connection

661‧‧‧left frame member

662‧‧‧Anti-vibration ring

663‧‧‧Anti-vibration ring

710‧‧‧Fan device

720‧‧‧Fan device

730‧‧‧Cold flow adjustment box

731‧‧‧1st adjustment plate

732‧‧‧2nd adjustment board

733‧‧‧outer board

734‧‧‧ outer edge

735‧‧‧ inner edge

736‧‧‧ outer edge

737‧‧‧ inner edge

740‧‧‧Cold flow adjustment box

750‧‧‧Outer fan unit

810‧‧‧1st drive department

820‧‧‧2nd drive department

910‧‧1 first transmission department

911‧‧‧Upper pulley

912‧‧‧Lower pulley

913‧‧‧Tension pulley

914‧‧‧ Endless belt

920‧‧‧2nd Transfer Department

Fig. 1 is a conceptual diagram of an air compressing device according to a first embodiment.

Fig. 2 is a conceptual diagram of an air compressing device according to a second embodiment.

Fig. 3A is a schematic perspective view of an air compressing device according to a third embodiment.

Fig. 3B is another perspective view of the air compressing device shown in Fig. 3A.

Fig. 4 is a schematic plan view showing the internal structure of the air compressing device shown in Fig. 3A.

Fig. 5 is a schematic cross-sectional view showing the structure of a base end portion of an intake pipe of the air compressing device shown in Fig. 3A.

Fig. 6 is a schematic enlarged cross-sectional view showing the intake pipe shown in Fig. 5.

Figure 7 is a schematic enlarged perspective view of the delivery tube of the air compression device shown in Figure 3A.

Figure 8 is a schematic cross-sectional view showing the piping portion of the air compressing device shown in Figure 3A.

Figure 9 is a schematic perspective view of the air compressing device shown in Figure 3A.

Fig. 10A is a schematic perspective view of a cold flow adjusting tank of the air compressing device shown in Fig. 3A (fourth embodiment).

Fig. 10B is a schematic rear view of the cold flow adjusting tank shown in Fig. 10A.

Fig. 11 is a partial assembly view (fifth embodiment) of the air compressing device shown in Fig. 3A.

Fig. 12 is a schematic perspective view showing a first transmission portion of the air compressing device shown in Fig. 11;

Fig. 13 is a partial assembly view of the air compressing device shown in Fig. 3A (sixth embodiment).

Figure 14 is a schematic perspective view of the support plate below the air compression device shown in Figure 13.

<First embodiment>

If compressed air is produced by a plurality of compressors, a large space is required for configuring the piping for supplying air to the compressors. The inventors of the present invention have developed a design technique for accommodating a pipe in a narrow space. In the first embodiment, a technique for supplying air to a plurality of compressors in a narrow space will be described.

Fig. 1 is a conceptual diagram of an air compressing device 100 according to a first embodiment. An air compressing device 100 will be described with reference to Fig. 1 .

The air compressor 100 includes a first compressor 210, a second compressor 220, and an intake line 300. The intake line 300 is connected to the first compressor 210 and the second compressor 220. When the first compressor 210 and/or the second compressor 220 are actuated, the first compressor 210 and/or the second compressor 220 are in a negative pressure environment in the intake line 300. As a result, each of the first compressor 210 and the second compressor 220 can take in air through the intake line 300. Each of the first compressor 210 and the second compressor 220 compresses the sucked air to generate compressed air. The compressed air is supplied from each of the first compressor 210 and the second compressor 220 to another device that uses compressed air. The supply of compressed air to each of the first compressor 210 and the second compressor 220 may be dependent on various known piping techniques. The principle of this embodiment is not limited to the specific technique for supplying compressed air to other devices.

For example, compressed air may also be supplied thereafter to a braking device (not shown) for generating a braking force to the railway vehicle. Instead, the compressed air may be supplied to other devices that use compressed air (for example, an air compressor (not shown) for opening and closing the door of the vehicle). The principle of this embodiment is not limited to the specific use of compressed air.

The first compressor 210 includes a first housing 211 and a compression mechanism 212. Compression mechanism 212 It is housed in the first housing 211. The compression mechanism 212 can also have the configuration of a general scroll compressor. Alternatively, the compression mechanism 212 can also have the configuration of a general rotary compressor. Alternatively, the compression mechanism 212 may have a configuration of a general swing compressor. Alternatively, the compression mechanism 212 may have a configuration of a general reciprocating compressor. The principle of this embodiment is not limited to the specific configuration of the compression mechanism 212.

The first housing 211 includes a first flange 213 that faces the second compressor 220. A first intake port 214 is formed in the first wall 213. The intake line 300 is connected to the first intake port 214. Therefore, the first compressor 210 can take in air from the first intake port 214 to generate compressed air.

The second compressor 220 includes a second housing 221 and a compression mechanism 222. The compression mechanism 222 is housed in the second housing 221. The compression mechanism 222 can also have the configuration of a general scroll compressor. Alternatively, the compression mechanism 222 may have a configuration of a general rotary compressor. Alternatively, the compression mechanism 222 may have a configuration of a general swing compressor. Alternatively, the compression mechanism 222 may have a configuration of a general reciprocating compressor. The principle of this embodiment is not limited to the specific structure of the compression mechanism 222.

The second housing 221 includes a second dam wall 223 that faces the first dam wall 213 of the first compressor 210 . A second intake port 224 is formed in the second wall 223. The intake line 300 is connected to the second intake port 224. Therefore, the second compressor 220 can take in air from the second intake port 224 to generate compressed air.

The intake line 300 includes a main pipe 310, a first branch pipe 311, and a second branch pipe 312. Each of the first branch pipe 311 and the second branch pipe 312 is different from the main pipe 310. The first branch pipe 311 is connected to the first intake port 214 of the first compressor 210. The second branch pipe 312 is connected to the second intake port 224 of the second compressor 220.

When the first compressor 210 is actuated, as described above, the intake line 300 is in a negative pressure environment. As a result, air flows from the main pipe 310 to the first branch pipe 311. The first branch 311 will be empty The air is directed to the first intake port 214. When the second compressor 220 is actuated, as described above, the intake line 300 is in a negative pressure environment. As a result, air flows from the main pipe 310 to the second branch pipe 312. The second branch pipe 312 guides air to the second intake port 224.

Since the intake pipe 300 is extended between the first weir wall 213 and the second weir wall 223, the first compressor 210 and the second compressor 220 share a pipe space for taking in air. Therefore, the designer can give the narrow space as the piping space for taking in air to the air compressing device 100.

In the present embodiment, the intake line 300 is a branch pipe. Alternatively, the intake line may be formed by a tube that exclusively guides the air supplied to the first compressor 210 and a tube that exclusively guides the air supplied to the second compressor 220. In this case, the tubes are disposed together between the first crucible wall 213 and the second crucible wall 223. The principle of this embodiment is not limited to the specific structure of the intake line.

The base end portion (not shown) of the main pipe 310 of the intake pipe 300 may be connected to a space other than a casing (not shown) for accommodating the storage space of the first compressor 210 and the second compressor 220. . In this case, the air outside the frame can flow directly to the main pipe 310. Instead, the base end of the main tube 310 can also be housed in the housing. In this case, the air in the casing flows into the main pipe 310. The principle of this embodiment is not limited to the specific arrangement position of the base end portion of the main pipe 310.

The intake line 300 can also incorporate a filter device for removing dust from the inhaled air. In this case, the purified air is supplied to the first compressor 210 and the second compressor 220. Alternatively, other appropriate purification techniques may be utilized for the purification of the air supplied to the first compressor 210 and the second compressor 220. The principle of this embodiment is not limited to a specific purification technique.

<Second embodiment>

The space for forming the delivery line for guiding the compressed air may also be the same as the intake line, and is shared by a plurality of compressors. In the second embodiment, the description is made to be common to The air compression device of a plurality of compressors connected to the space sending pipeline.

Fig. 2 is a conceptual diagram of an air compressing device 100A according to a second embodiment. An air compressing device 100A will be described with reference to Fig. 2 . The same components as those of the first embodiment are denoted by the same reference numerals. The description of the first embodiment is invoked with respect to the elements having the same reference numerals.

The air compressing device 100A includes an intake line 300 as in the first embodiment. The description of the first embodiment is applied to the intake line 300.

The air compressor 100A includes a first compressor 210A, a second compressor 220A, a casing 400, and a delivery line 500. The housing 400 forms a housing space 410 in which the first compressor 210A and the second compressor 220A are housed. As in the first embodiment, each of the first compressor 210A and the second compressor 220A receives air through the intake line 300. Each of the first compressor 210A and the second compressor 220A compresses air received from the intake line 300 to generate compressed air. The compressed air is discharged to the outside of the casing 400 through the delivery line 500. In the present embodiment, the first compressed air is exemplified by the compressed air generated by the first compressor 210A. The second compressed air is exemplified by the compressed air generated by the second compressor 220A.

The delivery line 500 can also be connected to a cooling device for cooling the compressed air. As a result, the compressed air is appropriately cooled. Thereafter, the compressed air can also be dehumidified. As a result, dry compressed air is produced. Other various treatments can also be received by the compressed air sent out of the line 500. The principle of the present embodiment is not limited to the specific treatment of the compressed air that has passed through the delivery line 500.

The first compressor 210A includes a compression mechanism 212 as in the first embodiment. The description of the first embodiment is applied to the compression mechanism 212.

The first compressor 210A further includes a first housing 211A. The compression mechanism 212 is housed in the first housing 211A.

The first housing 211A includes a first bottom wall 213A that faces the second compressor 220A. Similarly to the first embodiment, the first intake dam 214 is formed in the first dam wall 213A. First embodiment The description of the state is applied to the first intake port 214.

A first delivery port 215 is further formed on the first side wall 213A. The compressed air generated by the compression mechanism 212 is sent to the delivery line 500 through the first delivery port 215.

The second compressor 220A includes a compression mechanism 222 as in the first embodiment. The description of the first embodiment is applied to the compression mechanism 222.

The second compressor 220A further includes a second housing 221A. The compression mechanism 222 is housed in the second housing 221A.

The second housing 221A includes a second dam wall 223A that faces the first dam wall 213A of the first compressor 210A. Similarly to the first embodiment, the second intake port 224 is formed in the second dam wall 223A. The description of the first embodiment is applied to the second intake port 224.

A second delivery port 225 is further formed on the second wall 223A. The compressed air generated by the compression mechanism 222 is sent to the delivery line 500 through the second delivery port 225.

The delivery line 500 includes a first delivery tube 510, a second delivery tube 520, a merging portion 530, and a junction tube 540. The first delivery pipe 510 is connected to the merging portion 530 and the first delivery port 215 of the first compressor 210A. The compressed air generated by the first compressor 210A passes through the first delivery pipe 510, and flows from the first delivery port 215 to the merging portion 530. The second delivery pipe 520 is connected to the merging portion 530 and the second delivery port 225 of the second compressor 220A. The compressed air generated by the second compressor 220A passes through the second delivery pipe 520, and flows from the second delivery port 225 to the merging portion 530. Since the first delivery tube 510 and the second delivery tube 520 are connected to the first delivery cassette 215 and the second delivery cassette 225, respectively, they are disposed between the first meandering wall 213A and the second meandering wall 223A.

The compressed air generated by the first compressor 210A is connected to the merging portion 530 and merges with the compressed air generated by the second compressor 220A. The merging pipe 540 forms a feeding path from the merging portion 530 to the outside of the casing 400. The compressed air passes through the merging pipe 540 and flows out of the casing 400 from the merging portion 530.

In the present embodiment, the delivery line 500 includes a merging portion 530. Alternatively, the delivery line can also be used to guide the compressed air generated by the first compressor 210A to the outside of the casing 400. The tube is formed by a tube that guides the compressed air generated by the second compressor 220A to the outside of the casing 400. In this case, it is not necessary to combine the compressed air generated by the first compressor 210A with the compressed air generated by the second compressor 220A. The principle of this embodiment is not limited to the specific structure of the delivery line.

<Third embodiment>

The designer can design a plurality of air compressing devices based on the design principles described in connection with the second embodiment. In the third embodiment, an exemplary air compressing device will be described. In the following description, the terms "upper", "lower", "left", "right", "front" and "rear" are used to indicate the direction. These terms are used for clarification. The principles of the air compression device are not limited by these terms.

3A and 3B are schematic perspective views of an air compressing device 100B according to a third embodiment. An air compressing device 100B will be described with reference to Figs. 2 to 3B.

The air compressing device 100B includes a housing 400B, a cooling device 610, a dehumidifying device 620 (see FIG. 3B), a control device 630, a right connecting portion 650, and a left connecting portion 660. The casing 400B corresponds to the casing 400 described with reference to Fig. 2 .

The casing 400B includes a top plate 420 (see FIG. 3A), a bottom plate 430 (see FIG. 3B), and an outer peripheral wall 440. The top plate 420 and the bottom plate 430 are substantially rectangular. The top plate 420 is connected to the lower surface of the vehicle (not shown) by the right connecting portion 650 and the left connecting portion 660. The bottom plate 430 is placed transversely below the top plate 420. The outer peripheral wall 440 is erected between the top plate 420 and the bottom plate 430.

The outer peripheral wall 440 includes a front mounting wall 450 (see FIG. 3A), a rear mounting wall 460 (see FIG. 3B), a first wall 470 (see FIG. 3A), a second wall 480 (see FIG. 3B), and an intake wall 479 (see FIG. Refer to Figure 3A). The front mounting wall 450 forms a surface that is substantially parallel to the virtual elongate surface of the side of the vehicle that extends in the direction of travel of the vehicle. The intake wall 479 is disposed below the front mounting wall 450. The intake wall 479 allows passage of air. The air outside the casing 400B flows into the casing 400B through the intake wall 479. The rear mounting wall 460 is erected on the opposite side of the front mounting wall 450. The first wall 470 is erected between the right edge of the front mounting wall 450 and the right edge of the rear mounting wall 460. Second wall 480 It is erected between the left edge of the front mounting wall 450 and the left edge of the rear mounting wall 460.

As shown in FIG. 3A, the front mounting wall 450 includes a retaining plate 451 and a substantially cylindrical filter cover 452. The filter cover 452 is fixed to the holding plate 451. The filter cover 452 protrudes forward from the holding plate 451. A filter device, which is described later, is provided inside the filter cover 452 to remove dust from the inhaled air.

The filter cover 452 includes a substantially cylindrical outer casing 453 and a lever lock 454. The operator who inspects and repairs the air compression device 100B can manually operate the lever lock 454 without using a tool such as a screwdriver or a wrench. The operator can operate the lever lock 454 to fix the outer casing 453 to the retaining plate 451. Further, the operator can also operate the lever lock 454 to separate the outer casing 453 from the holding plate 451. When the removal case 453 is removed from the holding plate 451, the operator can access the filter member (not shown) housed in the frame 400B. Therefore, the operator can easily replace the filter member. The lever lock 454 can also be a commercially available general lock component. Instead of the lever lock 454, other suitable securing mechanisms can be used for the filter cover 452.

As shown in FIG. 3B, the rear mounting wall 460 includes a retaining plate 461 and a duct portion 462. The duct portion 462 protrudes rearward from the holding plate 461. In order to cool various devices in the frame 400B, cooling air flows into the frame 400B. The duct portion 462 forms an opening region that is long in the horizontal direction as an outlet of the cooling air used in the casing 400B. The cooled cooling air used in the casing 400B is sent out from the duct portion 462.

The cooling device 610 includes a cooling tube 611 extending from the crucible and a protective cover 612 surrounding the extended region of the cooling tube 611. The compressed air generated in the casing 400B flows into the cooling pipe 611. Since the cooling pipe 611 is disposed outside the casing 400B that houses a heat source (for example, a compressor (not shown)), the compressed air in the cooling pipe 611 is effectively cooled.

A portion of the cooling tube 611 is opposed to the duct portion 462. Therefore, the compressed air in the cooling pipe 611 is also cooled by the cooling air blown from the casing 400B.

The dehumidification device 620 is disposed below the cooling device 610. Since the air compressing device 100B does not have a machine present under the dehumidifying device 620, even if it is due to the dehumidifying device The failure of the 620 causes leakage and does not easily damage other machines that are loaded into the air compression device 100B.

Like the dehumidification device 620, the control device 630 is disposed below the cooling device 610. The control device 630 is disposed in the vicinity of the dehumidification device 620. The control device 630 controls a compressor (not shown) disposed in the casing 400B or another device.

The top plate 420 includes a leading edge 421 (see FIG. 3A), a trailing edge 422, a right edge 423 (see FIG. 3A), and a left edge 424 (see FIG. 3B). The leading edge 421 extends along a corner formed by the top plate 420 and the front mounting wall 450. The trailing edge 422 extends along a corner formed by the top plate 420 and the rear mounting wall 460. The right edge 423 extends along a corner formed by the top plate 420 and the first wall 470. The left edge 424 extends along a corner formed by the top plate 420 and the second wall 480.

As shown in FIG. 3A, the right connecting portion 650 includes a right frame member 651 and two anti-vibration rings 652, 653. The right frame member 651 has a substantially C-shaped cross section. The right frame member 651 extends along the right edge 423 of the top plate 420. The anti-vibration ring 652 is disposed at a corner formed by the right edge 423 and the leading edge 421. The anti-vibration ring 653 is disposed on a corner formed by the right edge 423 and the trailing edge 422. The anti-vibration rings 652, 653 are sandwiched between the right frame member 651 and the top plate 420. The anti-vibration rings 652 and 653 reduce the vibration transmitted from the casing 400B to the vehicle (not shown).

The left connecting portion 660 includes a left frame member 661 and two anti-vibration rings 662 and 663. The left frame member 661 has a substantially C-shaped cross section. The left frame member 661 extends along the left edge 424 of the top plate 420. The anti-vibration ring 662 is disposed at a corner formed by the left edge 424 and the leading edge 421. The anti-vibration ring 663 is disposed on a corner formed by the left edge 424 and the trailing edge 422. The anti-vibration rings 662, 663 are sandwiched between the left frame member 661 and the top plate 420. The anti-vibration rings 662 and 663 reduce the vibration transmitted from the casing 400B to the vehicle (not shown).

Fig. 4 is a schematic plan view showing the internal structure of the air compressing device 100B. The top plate 420 is removed from the air compressing device 100B shown in FIG. The air compressing device 100B will be further described with reference to Figs. 2 to 4 .

The air compressor 100B includes a first compressor 210B and a second compressor 220B. The gas line 300B and the delivery line 500B. The first compressor 210B corresponds to the first compressor 210A described with reference to Fig. 2 . The second compressor 220B corresponds to the second compressor 220A described with reference to Fig. 2 . The intake line 300B corresponds to the intake line 300 described with reference to FIG. The delivery line 500B corresponds to the delivery line 500 described with reference to FIG. 2 .

Fig. 5 is a schematic cross-sectional view showing the configuration of the base end portion of the intake pipe 300B. The intake line 300B will be described with reference to Figs. 2, 3A, 4 and 5.

As shown in FIG. 5, the intake line 300B includes an intake duct 310B, a filtering device 320, and a trim seal 331. The intake duct 310B corresponds to the main pipe 310 shown in FIG. 2. The filter device 320 is disposed between the filter cover 452 and the intake duct 310B. The trimming seal 331 is a gas ring member that hermetically connects the filter device 320 to the intake duct 310B.

The intake duct 310B is formed as a hollow box member having a substantially rectangular parallelepiped shape. When the first compressor 210B and/or the second compressor 220B are actuated, a negative pressure environment is generated in the intake duct 310B. As a result, air other than the frame 400B passes through the filter cover 452 and passes through the filter device 320. The filter device 320 removes dust that floats in the inflowing air. The air purified by the filtering device 320 flows into the intake duct 310B.

As shown in FIG. 4, the first compressor 210B includes a first meandering wall 213B. The second compressor 220B includes a second crucible wall 223B. The first crucible wall 213B corresponds to the first crucible wall 213A described with reference to Fig. 2 . The second crucible wall 223B corresponds to the second crucible wall 223A described with reference to Fig. 2 . The first crucible wall 213B faces the second crucible wall 223B.

The intake duct 310B is in the space between the first dam wall 213B and the second dam wall 223B, and extends from the filter device 320 to the rear mounting wall 460. Therefore, the air compressing device 100B can supply air to the first compressor 210B and the second compressor 220B from outside the casing 400B by using a narrow space.

Figure 6 is a schematic enlarged cross-sectional view of the intake line 300B around the intake duct 310B. The intake line 300B will be further described with reference to Figs. 2, 4 and 6.

The intake pipe 300B includes two connecting pipes 311B, 312B, and two trim sealing rings 332, 333. The connecting pipe 311B corresponds to the first branch pipe 311 shown in Fig. 2 . The connecting pipe 312B corresponds to the second branch pipe 312 shown in Fig. 2 . The trimming seal 332 is used to connect the connection pipe 311B with the intake duct 310B. A trim seal 333 is used to connect the connection between the tube 312B and the intake duct 310B.

The intake duct 310B includes a base end wall (front end wall) 341, a front end wall (rear end wall) 342, a right wall 343, a left wall 344, a top wall 345 (refer to FIG. 4), and a bottom wall 346. A trim seal 331 is attached to the base end wall 341. A portion of the filtering device 320 is inserted into the intake duct 310B through the trim seal 331. The front end wall 342 is erected on the opposite side of the base end wall 341. The front end wall 342 forms the downstream end of the intake duct 310B. The right wall 343 faces the first dam wall 213B of the first compressor 210B. The right wall 343 is interposed between the base end wall 341 and the front end wall 342 and extends along the first side wall 213B. The left wall 344 faces the second side wall 223B of the second compressor 220B. The left wall 344 is between the base end wall 341 and the front end wall 342 and extends along the second side wall 223B. The top wall 345 encloses a rectangular region surrounded by the base end wall 341, the front end wall 342, the right wall 343, and the upper edge of the left wall 344. The bottom wall 346 encloses a rectangular area surrounded by the base end wall 341, the front end wall 342, the right wall 343, and the lower edge of the left wall 344.

The first crucible wall 213B of the first compressor 210B includes a cylindrical first intake port 214B that protrudes toward the right wall 343 of the intake duct 310B. The first intake port 214B corresponds to the first intake port 214 shown in Fig. 2 .

The trim seal 332 is mounted to the right wall 343 of the intake duct 310B. The trim seal 332 is a rubber ring member. The trim seal 332 is substantially coaxial with the first intake dam 214B of the first compressor 210B.

The connecting tube 311B includes a first end 313 and a second end 314. The first end 313 is inserted into the trim seal 332. A portion of the first end 313 may also protrude toward the inside of the intake duct 310B. The trimming seal 332 hermetically seals between the first end 313 of the connecting tube 311B and the right wall 343 of the intake duct 310B. The second end 314 of the connecting pipe 311B is inserted into the first intake port 214B of the first compressor 210B. A suitable sealing member of the so-called sealing tape is used for the connecting pipe 311B The second end 314 is connected to the first intake port 214B of the first compressor 210B.

The second crucible wall 223B of the second compressor 220B includes a tubular second intake port 224B that protrudes toward the left wall 344 of the intake duct 310B. The second intake port 224B corresponds to the second intake port 224 shown in Fig. 2 .

The trim seal 333 is mounted to the left wall 344 of the intake duct 310B. The trim seal 333 is a rubber ring member. The trim seal 333 is substantially coaxial with the second intake dam 224B of the second compressor 220B.

The connecting tube 312B includes a first end 315 and a second end 316. The first end 315 is inserted into the trim seal 333. A portion of the first end 315 may also protrude toward the inside of the intake duct 310B. The trim seal 333 hermetically seals between the first end 315 of the connecting tube 312B and the left wall 344 of the intake duct 310B. The second end 316 of the connecting pipe 312B is inserted into the second intake port 224B of the second compressor 220B. A suitable sealing member for the sealing tape is used for connection between the second end 316 of the connecting pipe 312B and the second intake port 224B of the second compressor 220B.

As shown in FIG. 4, the delivery line 500B includes a first delivery tube 510B, a second delivery tube 520B, a merging portion 530B, and a junction tube 540B. The first compressor 210B receives air through the connection pipe 311B (see FIG. 6). The first compressor 210B compresses the air supplied through the connection pipe 311B to generate compressed air. The second compressor 220B receives air through the connection pipe 312B (see FIG. 6). The second compressor 220B compresses the air supplied through the connection pipe 312B to generate compressed air.

The first delivery pipe 510B is connected above the intake duct 310B and is connected to the first dam wall 213B of the first compressor 210B. The second delivery pipe 520B is connected above the intake duct 310B and is connected to the second dam wall 223B of the second compressor 220B. Therefore, as shown in FIG. 4, the first delivery pipe 510B and the second delivery pipe 520B partially overlap each other on the intake duct 310B. The connection portion between the first delivery tube 510B and the first meandering wall 213B of the first compressor 210B corresponds to the first delivery port 215 described with reference to FIG. 2 . The connection portion between the second delivery pipe 520B and the second crucible wall 223B of the second compressor 220B corresponds to the second delivery port 225 described with reference to FIG. 2 . First delivery tube 510B and The first delivery pipe 510 described with reference to Fig. 2 corresponds to each other. The second delivery tube 520B corresponds to the second delivery tube 520 described with reference to FIG. 2 .

Fig. 7 is a schematic enlarged perspective view of the delivery line 500B around the merging portion 530B. The delivery line 500B will be described with reference to Figs. 2, 4 and 7.

As shown in FIG. 4, the merging portion 530B is disposed in the vicinity of the mounting wall 450 before the frame 400B. The first delivery tube 510B and the second delivery tube 520B are bent toward the front attachment wall 450 and connected to the merging portion 530. The compressed air generated by the first compressor 210B passes through the first delivery pipe 510B and flows into the merging portion 530B. The compressed air generated by the second compressor 220B passes through the second delivery pipe 520B and flows into the merging portion 530B. The compressed air generated by the first compressor 210B is connected to the merging portion 530B, and merges with the compressed air generated by the second compressor 220B. The merging portion 530B corresponds to the merging portion 530 described with reference to Fig. 2 .

The merging portion 530B includes a manifold 531, a right check valve 532 (see FIG. 7), a left check valve 533 (see FIG. 7), and two first fixing members 534 and 535. The manifold 531 is a substantially rectangular parallelepiped. The manifold 531 includes an upper surface 551, a lower surface 552 (see FIG. 7), and a rear surface 553. The right check valve 532 and the left check valve 533 are mounted to the lower surface 552 of the manifold 531. The first fixing members 534 and 535 are attached to the upper surface 551. The junction tube 540B extends from the rear face 553.

As shown in FIG. 7, the first delivery pipe 510B is connected to the right check valve 532. The compressed air flowing along the first delivery pipe 510B flows into the manifold 531 through the right check valve 532. The right check valve 532 blocks the flow of the compressed air returning from the manifold 531 to the first delivery pipe 510B. The second delivery pipe 520B is connected to the left check valve 533. The compressed air flowing along the second delivery pipe 520B flows into the manifold 531 through the left check valve 533. The left check valve 533 blocks the flow of the compressed air returned from the manifold 531 to the second delivery pipe 520B.

Inside the manifold 531, a combined inner tube (not shown) that merges two flows of compressed air is formed. The compressed air that merges by the merged inner tubes passes through the merged tubes 540B and is discharged from the manifold 531.

As shown in FIG. 7 , the first fixing member 534 includes a first mounting portion 561 and a second mounting portion. 562. The first mounting portion 561 is connected to the first dam wall 213B of the first compressor 210B. The second mounting portion 562 is connected to the upper surface 551 of the manifold 531.

The first mounting portion 561 is formed in a substantially L shape. The first attachment portion 561 includes a vertical plate portion 563 and a horizontal plate portion 564. In the vertical plate portion 563, a first adjustment structure 565 is formed as a long hole that is long in the vertical direction. The manufacturer of the assembled air compressing device 100B can insert a suitable fixing tool called a screw into the first adjusting structure 565, and connect the first mounting portion 561 to the first meandering wall 213B of the first compressor 210B. The manufacturer can move the first fixing member 534 in the vertical direction along the extending direction of the first adjustment structure 565 to change the height position of the manifold 531. Since the relative position of the manifold 531 with respect to the first compressor 210B and the second compressor 220B is adjusted in the height direction, even if there is an installation error between the first compressor 210B and the second compressor 220B, the first position is not caused. The delivery pipe 510B and the junction pipe 540B apply an excessive load.

The horizontal plate portion 564 extends from the upper end of the vertical plate portion 563 toward the front mounting wall 450. The second attachment portion 562 is bent from the horizontal plate portion 564 and along the upper surface 551 of the manifold 531. In the horizontal plate portion 564, the first adjustment structure 566 is formed as a long hole that is long in the horizontal direction (left and right). The manufacturer of the assembled air compressing device 100B can insert a suitable fixture of a so-called screw into the first adjustment structure 566 and connect the second mounting portion 562 to the manifold 531. The manufacturer can move the first fixing member 534 in the horizontal direction along the extending direction of the first adjustment structure 566 to change the horizontal position of the manifold 531. Since the relative position of the manifold 531 with respect to the first compressor 210B and the second compressor 220B is adjusted in the horizontal direction, even if there is an installation error between the first compressor 210B and the second compressor 220B, the first position is not caused. The delivery pipe 510B and the junction pipe 540B apply an excessive load.

As shown in FIG. 7 , the first fixing member 535 includes a first mounting portion 571 and a second mounting portion 572 . The first attachment portion 571 is connected to the second dam wall 223B of the second compressor 220B. The second mounting portion 572 is connected to the upper surface 551 of the manifold 531.

The first attachment portion 571 is formed in a substantially L shape. The first mounting portion 571 includes a vertical plate portion 573, and a horizontal plate portion 574. A long hole (not shown) that is long in the vertical direction is formed in the vertical plate portion 573. The manufacturer of the assembled air compressing device 100B can insert a suitable fixing device of a so-called screw into the long hole, and connect the first mounting portion 571 to the second side wall 223B of the second compressor 220B. The manufacturer can move the first fixing member 535 in the vertical direction along the extending direction of the long hole, and change the height position of the manifold 531. Since the relative position of the manifold 531 with respect to the first compressor 210B and the second compressor 220B is adjusted in the height direction, even if there is an installation error between the first compressor 210B and the second compressor 220B, the second position is not caused to the second. The delivery pipe 520B and the junction pipe 540B apply an excessive load.

The horizontal plate portion 574 extends from the upper end of the vertical plate portion 573 toward the front mounting wall 450. The second attachment portion 572 is bent from the horizontal plate portion 574 and along the upper surface 551 of the manifold 531. In the horizontal plate portion 574, the first adjustment structure 576 is formed as a long hole that is long in the horizontal direction (left and right). The manufacturer of the assembled air compressing device 100B can insert a suitable fixture such as a so-called screw into the first adjustment structure 576, and connect the second mounting portion 572 to the manifold 531. The manufacturer can move the first fixing member 535 in the horizontal direction along the extending direction of the first adjustment structure 576 to change the horizontal position of the manifold 531. Since the relative position of the manifold 531 with respect to the first compressor 210B and the second compressor 220B is adjusted in the horizontal direction, even if there is an installation error between the first compressor 210B and the second compressor 220B, the second position is not caused to the second. The delivery pipe 520B and the junction pipe 540B apply an excessive load.

In the present embodiment, the manifold 531 is fixed by the first fixing members 534 and 535. Alternatively, the manifold 531 may be fixed by one of the first fixing members 534 and 535.

In the present embodiment, the first adjustment structures 565, 566, and 576 are long holes that are long in the vertical direction and/or long holes that are long in the horizontal direction. Alternatively, the first adjustment structure may be a notch that is longer in the vertical direction, the horizontal direction, and/or the other direction. The principle of the present embodiment is not limited to the specific shape of the opening region for adjusting the position of the manifold 531.

The first adjustment structure may be a plurality of through holes having different positions. Manufacturers can also recover The appropriate positions of the manifold 531 are set by selecting a plurality of through holes. Therefore, the principle of the present embodiment is not limited to the specific structure of the first adjustment structure.

The first delivery tube 510B includes a proximal end tube 511 (see FIG. 4), a first elbow tube 512 (see FIG. 4), a horizontal tube 513, a second elbow tube 514 (see FIG. 7), and a vertical tube 515 (see FIG. 7). The first nut 516 (see FIG. 7) and the second nut 517 (see FIG. 7). The base pipe 511 is connected to the first weir wall 213B of the first compressor 210B. The connection portion between the proximal end tube 511 and the first meandering wall 213B corresponds to the first delivery port 215 described with reference to Fig. 2 . The base end pipe 511 extends from the first dam wall 213B to the second dam wall 223B of the second compressor 220B. The first elbow 512 is attached to the front end of the proximal end tube 511. The first elbow 512 changes the flow direction of the compressed air generated by the first compressor 210B from the direction toward the second dam wall 223B of the second compressor 220B toward the front mounting wall 450.

The first nut 516 is rotatably attached to the second elbow 514. The upstream end of the horizontal pipe 513 is screwed to the first elbow 512. The downstream end of the horizontal pipe 513 is screwed to the first nut 516. Therefore, the manufacturer can rotate the first nut 516 and appropriately adjust the distance between the first elbow 512 and the second elbow 514.

The second nut 517 is rotatably attached to the right check valve 532. The lower end of the vertical pipe 515 is screwed to the second elbow 514. The upper end of the vertical pipe 515 is screwed to the second nut 517. Therefore, the manufacturer can rotate the second nut 517 and appropriately adjust the distance between the right check valve 532 and the second elbow 514. In the present embodiment, the curved pipe is exemplified by the group of the first elbow 512, the horizontal pipe 513, the second elbow 514, and the vertical pipe 515.

In the present embodiment, the second adjustment structure is exemplified by the group of the horizontal pipe 513 and the first nut 516 and the group of the vertical pipe 515 and the second nut 517. The set of the horizontal tube 513 and the first nut 516 helps to adjust the length of the guiding section of the horizontal direction of the compressed air. The set of vertical tubes 515 and second nuts 517 helps to adjust the length of the guiding section in the vertical direction of the compressed air. Alternatively, the second adjustment structure may adjust the length of the guide section of the compressed air only in one of the horizontal direction and the vertical direction.

The second adjustment structure may be a telescopic tube or another tube structure having a retractable structure. The principle of the present embodiment is not limited to the specific structure of the second adjustment structure.

The second delivery tube 520B has a mirror image relationship with the first delivery tube 510B. Therefore, the above description of the structure of the first delivery pipe 510B is applied to the second delivery pipe 520B.

As shown in FIG. 7, the first dam wall 213B of the first compressor 210B includes a fixed pedestal 216 having a substantially rectangular parallelepiped shape that protrudes toward the second compressor 220B. The air compressing device 100B includes a second fixing member 580. The second fixing member 580 is disposed on the fixed pedestal 216.

The second fixing member 580 includes a base end portion 581 and a front end portion 582. The base end portion 581 has a flat plate shape. The base end portion 581 is fixed to the fixed base 216 by using a suitable fixture such as a screw. The front end portion 582 is formed in a substantially C shape. The distal end portion 582 is attached to the fixed base 216, and is bent upward from the proximal end portion 581 to extend toward the second compressor 220B. The horizontal pipe 513 of the first delivery pipe 510B is sandwiched between the front end portion 582 and the fixed pedestal 216. The fixing technique of the second fixing member 580 and the first delivery pipe 510B of the fixed pedestal 216 can also be applied to the fixing of the second delivery pipe 520. The second fixing member may have another structure or other shape that can connect the horizontal pipe 513 to the first dam wall 213B of the first compressor 210B. The principle of the present embodiment is not limited to the specific shape or specific structure of the second fixing member.

FIG. 8 is a schematic cross-sectional view of the duct portion 462. Fig. 9 is a schematic perspective view of the air compressing device 100B. The cooling device 610 illustrated with reference to Figure 3B has been removed from the air compression device 100B shown in Figure 9. The delivery line 500B will be further described with reference to FIGS. 3B, 4, 8, and 9.

As shown in FIG. 8, the merging pipe 540B extends from the manifold 531 (see FIG. 4) to the rear mounting wall 460 and passes through the duct portion 462. The duct portion 462 includes an inner duct portion 463 and an outer duct portion 464. The inner duct portion 463 protrudes inward from the holding plate 461 of the rear mounting wall 460. The outer duct portion 464 protrudes outward from the rear mounting wall 460.

As shown in FIG. 9, the outer duct portion 464 has a substantially rectangular frame structure that is long in the horizontal direction. The outer duct portion 464 includes an upper wall 465, a lower wall 466, a right wall 467, and a left wall 468. The upper wall 465 extends generally horizontally along the trailing edge 422 of the top plate 420. Lower wall 466 extends generally horizontally below upper wall 465. The right wall 467 is erected between the right end of the upper wall 465 and the lower wall 466. The left wall 468 is erected between the upper end 465 and the left end of the lower wall 466. The junction tube 540B is bent toward the left wall 468 within the outer tube portion 464.

As shown in FIG. 3B, the junction pipe 540B is bent to the left side in the outer pipe portion 464. The merging pipe 540B penetrates the left wall 468 and appears outside the outer pipe portion 464. The merging pipe 540B is connected to the cooling pipe 611 of the cooling device 610 outside the outer pipe portion 464.

<Fourth embodiment>

Since the compressor compresses the air, the heat generated by the compressor and the compressed air is very large. Therefore, the heat treatment from the heat treatment of the frame and the cooling treatment of the compressed air are very important. In the fourth embodiment, an exemplary heat treatment technique will be described.

As shown in FIG. 4, the air compressing device 100B includes two fan devices 710 and 720 and two cold flow adjusting boxes 730 and 740. The front mounting wall 450 of the frame 400B includes a right fan cover 455 and a left fan cover 456. The fan unit 710 is attached to the right fan cover 455. The fan unit 720 is mounted to the left fan cover 456. The right fan cover 455 and the left fan cover 456 protrude forward from the holding plate 451 of the front mounting wall 450. The right fan cover 455 and the left fan cover 456 can be removed from the retaining plate 451. When the right fan cover 455 is removed from the holding plate 451, the fan unit 710 and the cold flow adjusting box 730 are taken out from the casing 400B. When the left fan cover 456 is removed from the holding plate 451, the fan unit 720 and the cold flow adjusting box 740 are taken out from the casing 400B.

Fan device 710 can also be an axial fan device having fan blades. The fan unit 710 rotates the fan blades to generate cooling air toward the rear mounting wall 460. Since the first compressor 210B is disposed between the fan device 710 and the rear mounting wall 460, it is appropriately cooled by the cooling air sent from the fan device 710.

The fan unit 720 can also be an axial fan unit having fan blades. The fan unit 720 rotates the fan blades to generate cooling air toward the rear mounting wall 460. Since the second compressor 220B is disposed between the fan device 720 and the rear mounting wall 460, the second compressor 220B is driven by the fan. The cooling air sent from the device 720 is appropriately cooled.

The cold flow adjustment tank 730 is disposed between the fan unit 710 and the first compressor 210B. The cold flow adjustment tank 730 appropriately adjusts the shape of the cooling air from the fan unit 710 to the first compressor 210B.

The cold flow adjustment tank 740 is disposed between the fan unit 720 and the second compressor 220B. The cold flow adjustment tank 740 appropriately adjusts the shape of the cooling air from the fan unit 720 to the second compressor 220B.

As shown in FIG. 3A, a mountain-shaped concave region is formed between the right fan cover 455 and the left fan cover 456. The filter cover 452 described in connection with the third embodiment is disposed in a concave region of a mountain shape.

FIG. 10A is a schematic perspective view of the cold flow adjustment tank 730. FIG. 10B is a schematic rear view of the cold flow adjustment tank 730. The cold flow adjustment tank 730 will be described with reference to Figs. 4 and 8 to 10B. The cold flow adjustment tank 740 described with reference to Fig. 4 is identical in construction to the cold flow adjustment tank 730. Therefore, the following description regarding the configuration of the cold flow adjustment tank 730 is applied to the cold flow adjustment tank 740.

The cold flow adjustment tank 730 includes a first adjustment plate 731, a second adjustment plate 732, and an outer circumferential plate 733. The first adjustment plate 731 is opposed to the fan device 710. The first adjustment plate 731 includes an outer edge 734 and an inner edge 735. The outer edge 734 forms a substantially rectangular outer contour of the first adjustment plate 731. The inner edge 735 forms a generally circular open area. The diameter of the open area formed by the inner edge 735 is substantially equal to the rotational diameter of the fan blades of the fan assembly 710. Alternatively, the diameter of the open area is set to be slightly larger than the rotational diameter of the fan blade. Therefore, the cooling air generated by the fan unit 710 can efficiently flow into the cold flow adjustment tank 730.

The second adjustment plate 732 is erected between the first adjustment plate 731 and the first compressor 210B. The second adjustment plate 732 includes an outer edge 736 and an inner edge 737. Similarly to the outer edge 734 of the first adjustment plate 731, the outer edge 736 of the second adjustment plate 732 forms a substantially rectangular outer contour of the second adjustment plate 732. Like the general compressor, the first compressor 210B includes the first compressor The vertical virtual plane of the rotating shaft of 210B has a substantially rectangular cross-sectional profile. The inner edge 737 of the second adjustment plate 732 has a substantially rectangular opening region formed to fit the shape and size of the cross section of the first compressor 210B. The outer peripheral plate 733 is connected to the outer edges 734 and 736 of the first adjustment plate 731 and the second adjustment plate 732. Therefore, the cooling air that has flowed into the substantially circular opening region formed by the inner edge 735 of the first adjustment plate 731 flows out from the substantially rectangular opening region formed by the inner edge 737 of the second adjustment plate 732, and is effective. The first compressor 210B is touched. Therefore, the first compressor 210B is effectively cooled.

As described above, the cooling air generated by the fan units 710, 720 is sent to the rear mounting wall 460. Therefore, the cooling air is taken from the first compressor 210B and the second compressor 220B, and then flows to the rear mounting wall 460. The cooling air flows in the casing 400B until it is discharged from the duct portion 462. Therefore, the cooling air can also form a long flow path in the delivery line 500B in the space between the first compressor 210B and the second compressor 220B. The compressed air is effectively cooled.

As explained with reference to Fig. 8, the rear mounting wall 460 includes the duct portion 462, and thus the cooling air is collectively discharged to the outside of the casing 400B through the duct portion 462. The merging pipe 540B of the delivery line 500B passes through the duct portion 462, so that the compressed air in the merging pipe 540B is cooled in the duct portion 462 by the cooling air cooled by the first compressor 210B and the second compressor 220B.

As described in connection with the third embodiment, the compressed air flows into the cooling pipe 611 of the cooling device 610. The cooling pipe 611 forms a flow path of compressed air that faces one side of the crucible. That is, the compressed air flows into the flow path on the upper side shortly after flowing into the cooling device 610. Thereafter, the compressed air flows along the flow path on the lower side.

As shown in FIG. 8, the flow path formed on the upper side by the cooling pipe 611 is opposed to the pipe portion 462. Therefore, the compressed air in the upper side flow path is cooled by the cooling air blown from the duct portion 462.

As shown in Fig. 9, the air compressing device 100B is provided with four outer fan devices 750. Four outer The fan unit 750 is connected to the lower side of the outer duct portion 464 in the horizontal direction.

As shown in FIG. 8, the flow path formed on the lower side by the cooling pipe 611 is opposed to the outer fan unit 750. Therefore, the outer fan unit 750 can send cooling air to the cooling pipe 611 which forms the flow path on the lower side. As a result, the compressed air flowing along the lower side flow path is effectively cooled by the outer fan unit 750.

In the present embodiment, the cold flow adjustment tanks 730 and 740 are used together with the axial flow fan unit. Instead, the adjustment of the shape of the flow path of the cold flow adjustment tanks 730, 740 can also be applied to the cooling air produced by other fan means of the so-called centrifugal fan unit. When the cooling air flows from the second adjustment plate 732 to the first adjustment plate 731, the above adjustment principle can still bring about high-efficiency cooling of the compressor.

<Fifth Embodiment>

A variety of devices are mounted on the underside of the vehicle. Therefore, the area of the mounting surface for mounting the air compression device is also narrow. In the fifth embodiment, a design technique for reducing the occupied area of the air compressing device in the horizontal direction will be described.

Figure 11 is a partial assembled view of the air compression device 100B. An air compressing device 100B will be described with reference to Fig. 11 .

The air compressing device 100B includes a first driving unit 810 and a second driving unit 820. The first drive unit 810 and the second drive unit 820 may be general motors. The first drive unit 810 generates a driving force for driving the first compressor 210B. The second drive unit 820 generates a driving force for driving the second compressor 220B. In the present embodiment, the first driving force is exemplified by the driving force generated by the first driving unit 810. The second driving force is exemplified by the driving force generated by the second driving unit 820.

The first drive unit 810 is disposed below the first compressor 210B. The second drive unit 820 is disposed below the second compressor 220B. The group of the first driving unit 810 and the second driving unit 820 does not cross the horizontal plane of the group of the first compressor 210B and the second compressor 220B. Therefore, the designer can set the area of the horizontal section of the frame 400B to be smaller. Small value.

The air compressing device 100B further includes a first transmitting unit 910 and a second transmitting unit 920. The first transmission portion 910 is formed in the vicinity of the first wall 470. The second transmission portion 920 is formed in the vicinity of the second wall 480. The first transmission unit 910 transmits the driving force generated by the first driving unit 810 to the first compressor 210B. The second transmission unit 920 transmits the driving force generated by the second driving unit 820 to the second compressor 220B.

The first compressor 210B includes a right mechanical shaft portion 230 that protrudes in a direction opposite to the second compressor 220B. The right mechanical shaft portion 230 includes a cylindrical casing 231 and a rotating machine shaft 232 (see FIG. 12). The rotary machine shaft 232 extends in a reverse direction with the space used for the pipe for suction and delivery. The rotary machine shaft 232 rotates in the cylindrical casing 231. The first transmission portion 910 is connected to a rotary mechanical shaft 232 supported by the cylindrical casing 231.

The second compressor 220B includes a left mechanical shaft portion 240 that protrudes in a direction opposite to the first compressor 210B. The left mechanical shaft portion 240 includes a cylindrical casing 241 and a rotating machine shaft (not shown). The rotary machine shaft rotates in the cylindrical casing 241. The second transmission portion 920 is connected to a rotary machine shaft supported by the cylindrical casing 241.

FIG. 12 is a schematic perspective view of the first transmission portion 910. The first transmission unit 910 will be described with reference to Fig. 12 . The second transmission portion 920 described with reference to Fig. 11 may be identical in construction to the first transmission portion 910. Therefore, the following description of the structure and operation of the first transmission unit 910 is applied to the second transmission unit 920.

The first transmission portion 910 includes an upper pulley 911, a lower pulley 912, a tension pulley 913, and an endless belt 914. The upper pulley 911 is attached to the rotary machine shaft 232 of the right mechanical shaft portion 230 of the first compressor 210B. The lower pulley 912 disposed below the upper pulley 911 is attached to the first drive unit 810. The endless belt 914 surrounds the upper pulley 911, the lower pulley 912, and the tension pulley 913. The tension pulley 913 is interposed between the upper pulley 911 and the lower pulley 912, and the endless belt 914 is pushed out to the rear mounting wall 460 to impart appropriate tension to the endless belt 914.

When the first drive unit 810 rotates, the endless belt 914 revolves around the upper pulley 911, the lower pulley 912, and the tension pulley 913. As a result, the upper pulley 911 rotates. Rotating mechanical shaft 232 The upper pulley 911 rotates and rotates. The rotation of the rotary machine shaft 232 generates a compression operation of the first compressor 210B. As a result, compressed air is generated.

<Sixth embodiment>

The structure of the frame described in connection with the third embodiment facilitates the so-called repair work of the filter replacement. The casing may have a structure in which the repair or inspection of the driving force transmission mechanism described in connection with the fifth embodiment is facilitated. In the sixth embodiment, a design technique for facilitating repair or inspection of the driving force transmission mechanism will be described.

Figure 13 is a partial assembled view of the air compression device 100B. The air compressing device 100B will be described with reference to Figs. 3A, 3B, 11, and 13.

The frame 400B includes a support frame 490 and a support plate 481. The support frame 490 includes a first pillar 491, a second pillar 492, a third pillar 493, a fourth pillar 494, a front beam 495, and a back beam 496. The first pillar 491 extends downward from a corner portion (see FIG. 3A) formed by the front edge 421 and the right edge 423 of the top plate 420. The second pillar 492 extends downward from a corner portion (see FIG. 3A) formed by the rear edge 422 and the right edge 423 of the top plate 420. The third pillar 493 extends downward from a corner formed by the front edge 421 (see FIG. 3A) and the left edge 424 (see FIG. 3B) of the top plate 420. The fourth pillar 494 extends downward from a corner portion (see FIG. 3B) formed by the trailing edge 422 and the left edge 424 of the top plate 420. The front beam 495 extends substantially horizontally between the first pillar 491 and the third pillar 493. The rear beam 496 extends substantially horizontally between the second post 492 and the fourth post 494. The support plate 481 is supported by the front beam 495 and the rear beam 496. As a result, the support plate 481 is placed between the top plate 420 (see FIG. 3A) and the bottom plate 430 (see FIG. 3B).

As shown in FIGS. 3A and 13, the first wall 470 is fixed to the first pillar 491 and the second pillar 492 by screws. Therefore, the first wall 470 is easily separated from the support frame 490. As shown in FIG. 11 , since the first transmission portion 910 is formed between the first wall 470 and the first compressor 210B that is disposed closer to the first wall 470 than the second wall 480, the operator can remove the first portion. After the wall 470, the first transmission portion 910 is easily accessed. Thereby, the operator can easily perform the repair or inspection of the first transmission unit 910.

As shown in FIG. 3B and FIG. 13, the second wall 480 is fixed to the third pillar 493 and the fourth pillar 494 by screws. Therefore, the second wall 480 is easily separated from the support frame 490. As shown in FIG. 11 , since the second transmission portion 920 is formed between the second wall 480 and the second compressor 220B that is disposed closer to the second wall 480 than the first wall 470, the operator can remove the second After the second wall 480, the second transmission portion 920 is easily accessed. Thereby, the operator can easily perform the repair or inspection of the second transmission unit 920.

<Seventh embodiment>

The drive portion may also be supported by a support member that is different from the support member that supports the compressor. Instead, the drive unit and the compressor can be mounted to a common support member. In this case, the error regarding the relative position between the driving portion and the compressor is lowered. In the seventh embodiment, a technique for reducing an error in the relative position between the driving portion and the compressor will be described.

As shown in FIG. 13, the support plate 481 includes a right support plate 482, a left support plate 483, and a lower support plate 484. The right support plate 482 and the left support plate 483 are placed on the lower support plate 484. Thereafter, the right support plate 482 and the left support plate 483 are placed on the front beam 495 or the rear beam 496.

Figure 14 is a schematic perspective view of the lower support plate 484. The support plate 481 will be further described with reference to Figs. 11 , 13 and 14 .

The lower support plate 484 includes a lower plate 485, a frame rib 486, a grill rib 487, and four ears 488. The lower plate 485 is placed transversely below the right support plate 482 and the left support plate 483. The frame rib 486 protrudes upward from the outer periphery of the rectangular shape of the lower plate 485. The grid ribs 487 are erected in a rectangular space surrounded by the frame ribs 486. The right support plate 482 and the left support plate 483 are welded to the upper edges of the grid ribs 487 and the frame ribs 486. Each of the four ears 488 protrudes from the frame rib 486 to the front beam 495 or the back beam 496. Each of the four ears 488 is secured to the front beam 495 or the back beam 496 such that the lower support plate 484 is properly retained by the support frame 490.

As shown in FIGS. 13 and 14, a plurality of through holes are formed in the lower support plate 482, the left support plate 483, and the lower support plate 484 lower plate 485. The through holes are attached to the right support plate 482 The left support plate 483 is fused to the lower support plate 484 and then passed through. Therefore, the relative relationship between the positions at which the through holes are formed becomes substantially equal to the positional relationship formed by the design pattern. The through hole formed in the right support plate 482 is used for mounting the first compressor 210B. The through hole formed in the left support plate 483 is used for the attachment of the second compressor 220B. The through hole formed in the lower plate 485 of the lower support plate 484 is used for mounting the first driving portion 810 and the second driving portion 820. In the present embodiment, the upper surface is exemplified by the upper surfaces of the right support plate 482 and the left support plate 483. The lower surface is exemplified by the lower surface of the lower plate 485 of the lower support plate 484.

An exemplary air compressing device described in connection with the above various embodiments mainly has the following features.

An air compressing apparatus according to an aspect of the embodiment includes a first compressor including a first dam wall in which a first intake port is formed, and a second compressor including a second intake dam in which a second intake port is formed a wall and an intake line for guiding air to the first intake port and the second port. The first wall and the second wall are opposed to each other. The intake duct is disposed between the first dam wall and the second dam wall.

According to the above configuration, since the intake passage is disposed between the first dam and the second dam, the first compressor and the second compressor can share the piping space for intake. Therefore, the designer can assign a smaller size value to the air compression device.

In the above configuration, the air compressing device may further include: a delivery line that receives the first inflow port from the first port and the first inflow port through the first port The first compressed air generated by the air receives the second compressed air generated by the second compressor compressing the air flowing through the second intake port from the second delivery port formed on the second port wall .

According to the above configuration, since the first delivery port and the second delivery air formed on the second wall are received by the delivery line, the first compressed air and the second compressed air are received, so that the delivery path is formed. 1 between the wall and the second wall. The first compressor and the second compressor share a space between the first side wall and the second side wall for feeding, so that the designer can compress the air. Set a smaller size value.

In the above configuration, the delivery line may include a manifold that combines the first compressed air and the second compressed air, and a manifold that fixes the manifold to at least one of the first compressor and the second compressor The first fixing member. The first fixing member may include a first adjustment structure capable of adjusting a relative position of the manifold with respect to the first compressor and the second compressor.

According to the above configuration, since the first fixing member includes the first adjustment structure capable of adjusting the relative position of the manifold with respect to the first compressor and the second compressor, the first compressor and the second compressor are less likely to be generated. Excessive load on the delivery path caused by assembly errors.

In the above configuration, the air compressing device may further include a second fixing member that fixes the delivery line to the first crucible wall at a position different from the first intake port.

According to the above configuration, the second fixing member fixes the delivery line to the first side wall at a position different from the first intake port, and thus it is difficult to apply an excessive load to the delivery line.

In the above configuration, the delivery line may include a base end pipe extending from the first delivery port toward the second crucible wall, and a bending from the base end tube and guiding the first compressed air to the manifold tube. The curved tube may include a second adjustment structure that adjusts the length of the guide section extending from the base end tube to the manifold.

According to the above configuration, since the curved pipe includes the second adjustment structure that adjusts the length of the guide section extending from the base pipe to the manifold, the feed path caused by the assembly error of the first compressor and the second compressor is less likely to occur. Excessive load.

In the above configuration, the air compressing device may further include: a first driving unit that generates a first driving force for driving the first compressor; and a first transmission unit that applies the first driving force to the first The second drive unit generates a second driving force for driving the second compressor, and the second transmission unit transmits the second driving force to the first compressor. The frame body may include a first wall that is erected in the vicinity of the first transmission portion, and a second wall that is erected in the vicinity of the second transmission portion.

According to the above configuration, the first transmission portion is disposed in the vicinity of the first wall, and the second transmission portion is erected in the vicinity of the second wall. Therefore, the operator can easily repair and/or inspect the first transmission portion and the second transmission portion.

In the above configuration, the frame body may further include: a top plate connected to the vehicle; a bottom plate laterally disposed below the top plate; an outer peripheral wall erected between the top plate and the bottom plate; and a support plate horizontally The first compressor and the second compressor are supported between the top plate and the bottom plate. The support plate may include an upper surface on which the first compressor and the second compressor are mounted, and a lower surface to which the first drive unit and the second drive unit are attached.

According to the above configuration, the first compressor and the second compressor are attached to the upper surface of the support plate, and the first drive unit and the second drive unit are attached to the lower surface of the support plate, thereby driving the compressors and the respective drives. The parts are arranged in the vertical direction, and the designer can set the size of the horizontal direction of the air compression device to a small value. Further, since the compressor and the drive unit can be unitized via the support plate, the transmission portion that transmits the driving force from the drive unit to the compressor can be easily attached.

In the above configuration, the air compressing device may further include: a fan device including a fan blade that rotates to cool the cooling air of the first compressor; and a cold flow adjusting box that is disposed in the fan device and the first 1 between the compressors. The cold flow adjustment tank may include a first adjustment plate with respect to the fan device and a second adjustment plate with respect to the first compressor. A circular opening may be formed in the first adjustment plate. A rectangular opening may be formed in the second adjustment plate.

According to the above configuration, the circular opening is formed in the first adjustment plate, and the rectangular opening is formed in the second adjustment plate. Therefore, the first compressor can receive the cooling air as a whole. The shape of the cooling air is appropriately adjusted by the cold flow adjusting tank, so that the designer can give a smaller size value with respect to the distance between the fan unit and the first compressor.

In the above configuration, the intake duct may further include: an intake duct along the above a first side wall extending; the connecting pipe includes a first end connected to the intake duct and a second end connected to the first intake port; and a trim sealing ring sealing the intake duct and the first Between 1 end.

According to the above configuration, since the first end of the connecting pipe is connected to the intake duct via the trim sealing ring, the error in the relative position between the first compressor and the intake pipe is absorbed by the trim sealing ring. Therefore, the intake line becomes less susceptible to an excessive load caused by the assembly error of the first compressor and/or the intake duct.

[Industrial availability]

The principles of the above embodiments are preferably utilized in a variety of technical fields where compressed air is required.

100‧‧‧Air compression device

210‧‧‧1st compressor

211‧‧‧1st frame

212‧‧‧Compressor

213‧‧‧1st wall

214‧‧‧1st intake port

220‧‧‧2nd compressor

221‧‧‧2nd frame

222‧‧‧Compression mechanism

223‧‧‧2nd wall

224‧‧‧2nd intake port

300‧‧‧Intake line

310‧‧‧Supervisor

311‧‧‧1st pipe

312‧‧‧2nd tube

Claims (8)

An air compressing device (100, 100A, 100B) comprising: a first compressor (210, 210A, 210B) including a first side wall (213, 213A) on which a first intake port (214, 214B) is formed 213B); a second compressor (220, 220A, 220B) including a second side wall (223, 223A, 223B) in which the second intake port (224, 224B) is formed; and an intake line (300) And 300B) guiding the air to the first intake port (214, 214B) and the second intake port (224, 224B); and the first wall (213, 213A, 213B) and the second The crucible walls (223, 223A, 223B) are disposed opposite to each other; the intake ducts (300, 300B) are disposed on the first crucible wall (213, 213A, 213B) and the second crucible wall (223, 223A) And 223B); the air compressing device (100, 100A, 100B) further includes: a sending line (500, 500B) that is sent from the first one of the first side walls (213, 213A, 213B)埠 (215) receives the first compressed air generated by compressing the air flowing in through the first intake port (214, 214B) by the first compressor (210, 210A, 210B), and is formed from the above The second delivery wall (225) of the second wall (223, 223A, 223B) By closing the second compressor (220,220A, 220B) of the air flowing into the second compressed air generated by the second intake port (224,224B). The air compressing device (100, 100A, 100B) of claim 1, wherein the delivery line (500, 500B) includes a manifold (531) for combining the first compressed air and the second compressed air, and a manifold (531) is fixed to the first fixing members (534, 535) of at least one of the first compressor (210, 210A, 210B) and the second compressor (220, 220A, 220B); The first fixing members (534, 535) include a position that can adjust a relative position of the manifold (531) with respect to the first compressor (210, 210A, 210B) and the second compressor (220, 220A, 220B). The first adjustment structure (565, 566). The air compressing device (100, 100A, 100B) of claim 2, further comprising: a second fixing member (580) that is disposed at a position different from the first intake port (214, 214B) The roads (500, 500B) are fixed to the first side walls (213, 213A, 213B). The air compressing device (100, 100A, 100B) of claim 2, wherein the delivery line (500, 500B) extends from the first delivery port (215) to the second wall (223, 223A, 223B) a base pipe (511) and a bending pipe (512, 513, 514, 515) bent from the base pipe (511) and guiding the first compressed air to the manifold (531); and the bending The tubes (512, 513, 514, 515) include second adjustment structures (513, 515, 516, 517) that adjust the length of the guide section extending from the base end tube (511) to the manifold (531). The air compressing device (100, 100A, 100B) of claim 1, further comprising: a first driving unit (810) that generates a first driving force for driving the first compressor (210, 210A, 210B) a first transmission unit (910) that transmits the first driving force to the first compressor (210, 210A, 210B), and a second driving unit (820) that generates the second compressor a second driving force of (220, 220A, 220B); a second transmission unit (920) that transmits the second driving force to the second compressor (220, 220A, 220B); and a housing (400, 400B), which forms and houses the first compressor (210, 210A, 210B), the second compressor (220, 220A, 220B), the first driving unit (810), the first transmission unit (910), the second driving unit (820), and the second transmission unit (920) a storage space (410); wherein the frame (400, 400B) includes an outer peripheral wall (440), and the outer peripheral wall (440) includes a first wall (470) that is erected near the first transmission portion (910) And a second wall (480) that is erected in the vicinity of the second transmission unit (920). The air compressing device (100, 100A, 100B) of claim 5, wherein the frame (400, 400B) comprises: a top plate (420) coupled to the vehicle; and a bottom plate (430) laterally disposed on the top plate (420) Bottom; a peripheral wall (440) erected between the top plate (420) and the bottom plate (430); and a support plate (481) laterally disposed between the top plate (420) and the bottom plate (430) The first compressor (210, 210A, 210B) and the second compressor (220, 220A, 220B) are supported between each other; and the support plate (481) includes the first compressor (210, 210A, 210B). And an upper surface (551) of the second compressor (220, 220A, 220B) and a lower surface (552) of the first driving unit (810) and the second driving unit (820). The air compressing device (100, 100A, 100B) of claim 5, further comprising: fan means (710, 720) including means for generating cooling air for cooling said first compressor (210, 210A, 210B) a rotating fan blade; and a cold flow adjusting box (730, 740) disposed between the fan device (710, 720) and the first compressor (210, 210A, 210B); and the cold flow adjusting box ( 730 and 740) comprising a first adjustment plate (731) facing the fan device (710, 720) and a second adjustment plate (732) facing the first compressor (210, 210A, 210B); The first adjustment plate (731) forms a circular opening, and the second adjustment plate (732) forms a rectangular opening. An air compressing device (100, 100A, 100B) according to any one of claims 1 to 7, The intake duct (300, 300B) includes: an intake duct (310B) extending along the first side wall (213, 213A, 213B); and a connecting pipe (311B) including a connecting duct a first end (313, 315) of (310B), a second end (314, 316) connected to the first intake port (214, 214B), and a trim seal (331, 332, 333), It seals between the intake duct (310B) and the first end (313, 315).