JPH0882285A - Compressor and compressor-loaded vehicle - Google Patents

Abstract

PURPOSE: To obtain a compressor improved in durability to dust and to obtain a compressor loaded vehicle, the visibility of which is improved, and the center of gravity of which is lowered. CONSTITUTION: A compressor 1 comprises a main device 2 and a water cooling device 3, and especially a cooling part 4 of the main device 2 is of a water- cooled type, and the water cooling device 3 is provided separately from the main device 2. A compressor loaded vehicle is formed by a car body, wheels, the main device 2 and the water cooling device 3, and especially the main device 2 is disposed between front and rear wheels 32 on the side of the car body 31, and the water cooling device 3 is disposed on the upper surface of the car body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvements in compressors and vehicles equipped with compressors, which are applied to concrete spraying machines and the like.

[0002]

2. Description of the Related Art Conventionally, as a compressor of this type,
For example, the one shown in FIG. 5 is known. The compressor 50 basically includes an air-cooling type cooling portion 51, an air cooling device 52 that cools the cooling portion 51, and a casing 53 that houses these. That is, the compressor 50 includes the suction filter 54 that purifies the suction air.
A suction throttle valve 55 that throttles the suction air, a compressor 56 that compresses the suction air, a motor 57 that drives this, an oil separator 58 that separates the oil component of the compressed air from the compressor 56, and the compression from this. An aftercooler 59 that cools air, an oil cooler 60 that cools the lubricating oil from the oil separator 58, a drain separator 61 that separates the moisture of the compressed air from the oil separator 58, and an aftercooler 59 and the oil cooler 60 are air-cooled. A cooling fan 62, a fan motor 63 that drives the cooling fan 62, and a casing 5 that houses these and forms a compressor chamber.
3, an aftercooler 59 and an oil cooler 60 form an air-cooling type cooling portion 51, and a cooling fan 62 and a fan motor 63 form an air cooling device 52. However, since such a thing was a so-called air-cooled package type compressor, in the environment at the site of use, it will bring in a considerable amount of dust into the compressor chamber, making it more durable against dust. There were problems such as electrical system trouble, early clogging of the suction filter, and early deterioration of oil (lubricating oil). Also, as a compressor-equipped vehicle equipped with such a compressor,
For example, the ones shown in FIGS. 6 and 7 are known. The compressor-equipped vehicle 70 includes a vehicle body 71, front and rear wheels 72 rotatably provided on the vehicle body 71, and a compressor 50 provided on an upper surface of the vehicle body 71. However, because such a compressor was mounted on the upper surface of the vehicle body due to the relatively large size of the compressor,
There is a problem that the driver's seat has to be placed in a high position due to poor visibility and the position of the center of gravity becomes high and the stability of the vehicle deteriorates.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems and was devised to solve the problem. The object of the present invention is to provide a compressor having improved durability against dust. (EN) A compressor-equipped vehicle having improved visibility and a reduced center of gravity.

[0004]

The compressor of the present invention is basically a main device having a water-cooled cooling part and a casing for housing the cooling part, and a cooling part provided separately from the main device to cool the cooling part. It is characterized by being composed of a water cooling device that operates. The compressor-equipped vehicle of the present invention basically comprises a vehicle body, front and rear wheels rotatably provided on the vehicle body, and a main device provided between the front and rear wheels laterally of the vehicle body,
It is characterized by being composed of a water cooling device provided on the upper surface of the vehicle body.

[0005]

The compressor is cooled by the water cooling device provided separately with the water cooling type cooling portion of the main device. Since the cooling part of the main device is water-cooled, it is not necessary to provide an air cooling device in the compressor chamber, and dust caused by this is not brought into the compressor chamber. Since the compressor-equipped vehicle has a separate water cooling device for the compressor, the main device is compact and can be provided between the front and rear wheels on the side of the vehicle body. Since the main device is provided on the side of the vehicle body between the front and rear wheels, it does not significantly project from the upper surface of the vehicle body. Since the water cooling device is arranged on the upper surface of the vehicle body, it is easy for the outside air to come into contact with the water cooling device, and the cooling effect does not deteriorate.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a system diagram showing a compressor of the present invention. The main part of the compressor 1 is composed of a main device 2 and a water cooling device 3. The main device 2 includes a water-cooling type cooling part 4 and a casing 5 that accommodates the cooling part 4, and in this example, a suction filter 6 that purifies suction air.
A suction throttle valve 7 that throttles the suction air, a compressor 8 that compresses the suction air, a motor 9 that drives the compressor 8, and an oil separator 10 that separates the oil component of the compressed air from the compressor 8.
And an aftercooler 11 for cooling the compressed air from now on
And an oil cooler 12 for cooling the lubricating oil from the oil separator 10 and a casing 5 for accommodating these and forming a compressor chamber. Aftercooler 1
1 and the oil cooler 12 form a cooling portion 4 and are water-cooled. The aftercooler 11 is connected to a drain separator 13 that separates the water content of the compressed air from the oil separator 10, and the compressed air passing through this is supplied to a load (not shown) such as a concrete spraying machine. The main device 2 is provided with a ventilation fan 14 that ventilates the inside of the casing 5 and a fan motor 15 that drives the ventilation fan 14. The water cooling device 3 is provided separately from the main device 2 to cool the cooling part 4. In this example, a radiator 16 for circulating cooling water between the aftercooler 11 and the oil cooler 12 which are the cooling part 4, A cooling fan 17 that cools this by air,
An aftercooler 11, an oil cooler 12, and a radiator 16 are connected by water pipes 19, 20, and 21, and an on-off valve 22 is provided in the water pipe 19.

The compressor 1 having such a structure is cooled by the water cooling device 3 in which the water cooling type cooling portion 4 of the main device 2 is separately provided. That is, the outside air is sucked from the suction filter 6, purified there, is throttled by the suction throttle valve 7, and is compressed by the compressor 8 driven by the motor 9.
The compressed air from the compressor 8 is separated into oil by the oil separator 10 and cooled by the aftercooler 11,
Water is separated by the drain separator 13 and supplied to a load (not shown). The lubricating oil from the oil separator 10 or the like is cooled by the oil cooler 12. In the aftercooler 11 and the oil cooler 12, the cooling water of the radiator 16 is circulated by the water pipes 19, 20, and 21 to be water-cooled. The radiator 16 is air-cooled by a cooling fan 17 driven by a fan motor 18. Since the cooling portion 4 of the main device 2 is water-cooled, it is not necessary to provide the air cooling device 52 in the compressor chamber in the casing 5 as in the conventional case, and the dust is not brought into the compressor chamber due to this. .

FIG. 2 is a side view showing a vehicle equipped with a compressor of the present invention. FIG. 3 is a plan view of FIG. The compressor-equipped vehicle 40 includes a vehicle body 41, wheels 42, a main device 2, and a water cooling device 3 as main components. Car body 4
Reference numeral 1 is a basic part of a vehicle 40 equipped with a compressor. In this example, a front mast 43 and an outrigger 4 are provided.
4, driver's seat 45, engine 46, compressor control panel 4
7, cable reel 48, rear mast 49 and the like. The wheels 42 are front and rear wheels rotatably provided on the vehicle body 41, and in this example, a pair of left and right wheels are provided front and rear. The main device 2 includes wheels 4 on the front and rear sides of the vehicle body 41.
It is provided between two, and in this example, the number is two, and the left and right sides in the middle of the vehicle body 41 are cut off and disposed here. The water cooling device 3 is provided on the upper surface of the vehicle body 41. In this example, there is one water cooling device 3, and the radiator 16 is disposed rearward of the center of the upper surface of the vehicle body 41 with the radiator 16 at the rear side. The cooling part 4 of the device 2 and a water pipe (not shown) are connected in parallel to cool them.

A compressor-equipped vehicle 40 having such a structure
Since the water cooling device 3 of the compressor 1 is separately provided, the main device 2 is compact and can be provided between the front and rear wheels 42 laterally of the vehicle body 41. Since the main device 2 is provided between the front and rear wheels 42 on the side of the vehicle body 41,
It does not protrude significantly from the upper surface of the vehicle body 41. Since the water cooling device 3 is disposed on the upper surface of the vehicle body 41, it is easy for the outside air to come into contact with the water cooling device 3 and the cooling effect does not deteriorate. Engine 4
Since the upper surface of 6 is open, there is an advantage that maintenance and the like can be easily performed. When the quick-setting agent supply device (not shown) is mounted, the layout is easy and it can be mounted at the front or the rear.

FIG. 4 is a system diagram showing a compressor installed in a vehicle equipped with a compressor of the present invention. The compressor 1 includes a main device 2, a water cooling device 3, and a cooling water introduction device 2
3, the oil cooler 24 constitutes the main part. In this example, the number of main devices 2 is two, and a compressor 8 that compresses the suction air, an oil separator 10 that separates the oil component of the compressed air from this, and a water-cooled aftercooler that cools the compressed air from this are used. 11, a water-cooled oil cooler 12 for cooling the lubricating oil from the oil separator 10, a casing 5 for accommodating these and forming a compressor chamber, and the like. In this example, the number of the water cooling devices 3 is one, and the radiator 16 that circulates the cooling water between the aftercooler 11 and the oil cooler 12, which are the cooling parts 4, and the cooling fan 17 that cools the cooling air by air.
It is composed of a fan motor 18 and the like for driving this. The cooling water introduction device 23 introduces cooling water from the outside into the cooling portion 4 of the main device 2. In this example, the cooling water tank 25 for storing the cooling water and the cooling water from this are pressurized to the main part. A cooling water pump 26 supplying the cooling part 4 of the device 2,
Relief valve 2 that keeps the pressure of cooling water constant
It consists of 7 and. The cooling water tank 25 has an inlet for injecting cooling water from the outside and an outlet for overflowing hot water, and water pipes 28 and 29 are connected to these.
An on-off valve 30 is provided in these. The outlet of the cooling water tank 25 and the inlet of the cooling water pump 26 are water pipes 31, and the outlet of the cooling water pump 26 and each aftercooler 11 are connected.
Is the water pipe 32, the inlet of each aftercooler 11 and the oil cooler 12 is a water pipe 33, the outlet of each oil cooler 12 and the radiator 16 is a water pipe 34,
An outlet of the radiator 16 and an inlet of the cooling water tank 25 are connected by a water pipe 35. The oil cooler 24 is an air-cooled type that cools the lubricating oil by being cooled by the cooling fan 17 in the vicinity of the radiator 16, and in this example, the outlet depends on the oil pipe 36 and the compressor 8 of one main unit 2 and the oil. It is connected to the inlet of the oil cooler 12 via the separator 10, and the inlet is connected to the outlet of the oil cooler 12 by the oil pipe 37.

In the compressor 1 having such a structure, when the radiator 16 of the water cooling device 3 is clogged or the outside air temperature rises, the temperature of the lubricating oil of the compressor 8 of the main device 2 rises and the main device 2 The interlock built in will work and this will stop. At such time, cooling water introduction device 2
The cooling water pump 26 of 3 is operated to introduce external water from the inlet into the cooling water tank 25 → the cooling water pump 26 → the aftercooler 11 which is the cooling part 4 of the main device 2 → the oil cooler 12, and The warm water is discharged from the radiator 16 through the cooling water tank 25 through the discharge port. Then, the cooling capacity is sustained or temporarily increased, and the compressor work can be immediately performed or continued. In the case of the conventional air-cooled type, it is necessary to wait for the lubricating oil to cool and to clean the filter etc. (remove the clogging) before the compressor work can be performed again. I had to interrupt the work on the inner face. As the cooling water injected from the outside, for example, the water used for the jumbo drill operated in the tunnel can be used as it is. Air-cooled oil cooler 24
Is provided in the vicinity of the radiator 16, and is cooled by air by the cooling fan 17 to cool the lubricating oil.
Therefore, the cooling performance is increased by the amount corresponding to the addition.

The main unit 2 is provided with the ventilation fan 14 and the fan motor 15 in the above embodiment, but the present invention is not limited to this, and these may be omitted, for example. Although the drain separator 13 is provided outside the casing 5 in the previous embodiment, the drain separator 13 is not limited to this and may be provided inside the casing 5, for example. In the previous embodiment, the cooling water introducing device 23 includes the cooling water tank 25, the cooling water pump 26, and the relief valve 2.
However, the present invention is not limited to this, and the design can be appropriately changed, for example. Although the oil cooler 24 is added to the oil cooler 12 of one of the main devices 2 in the above-described embodiment, the present invention is not limited to this. You may make it an expanded form. The compressor-equipped vehicle 30 is the main device 2 in the previous embodiment.
However, the number is not limited to this, and may be other than two, for example. The compressor-equipped vehicle 30 is
Although the number of the water cooling devices 3 is one, the number of the water cooling devices 3 is not limited to this, and may be the number of the main devices 2, for example.

[0013]

As described above, according to the present invention,
The following excellent effects can be achieved. (1) A compressor is composed of a main device and a water cooling device, and in particular, the cooling part of the main device is water-cooled,
Since the water cooling device is provided separately from the main device, the durability against dust can be improved. That is, since there is no cooling fan inside the casing, it is difficult for dust to enter the casing. Therefore, it is possible to prevent troubles in the electric system, early clogging of the suction filter, early deterioration of oil, and the like. (2) Since the water cooling device is installed separately from the main device, the layout can be freely set and cleaning is very easy. (3) Since a vehicle equipped with a compressor is configured by the vehicle body, wheels, the main device, and the water cooling device, and in particular, the main device is provided laterally between the front and rear wheels, and the water cooling device is provided on the upper surface of the vehicle body. , Visibility improves and the center of gravity decreases. Since the visibility is improved, it is safe, and the center of gravity is lowered, so that the stability is improved.

[Brief description of drawings]

FIG. 1 is a system diagram showing a compressor of the present invention.

FIG. 2 is a side view showing a vehicle equipped with a compressor of the present invention.

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is a system diagram showing a compressor installed in a vehicle equipped with a compressor of the present invention.

FIG. 5 is a system diagram showing a conventional compressor.

FIG. 6 is a side view showing a conventional compressor-equipped vehicle.

FIG. 7 is a plan view of FIG.

[Explanation of symbols]

1, 50 ... Compressor, 2 ... Main device, 3 ... Water cooling device, 4, 51 ... Cooling part, 5, 53 ... Casing, 6,
54 ... Suction filter, 7, 55 ... Suction throttle valve, 8, 56
... Compressor, 9,57 ... Motor, 10,58 ... Oil separator, 11,59 ... Aftercooler, 12, 24, 60
... Oil cooler, 13, 61 ... Drain separator, 14
… Ventilation fans, 15, 18, 63… Fan motors, 16
... radiator, 17, 62 ... cooling fan, 19-
21, 28, 29, 31-35 ... Water pipe, 22, 30 ... Open / close valve, 23 ... Cooling water introducing device, 25 ... Cooling water tank, 2
6 ... Cooling water pump, 27 ... Relief valve, 36, 37
... Oil pipes, 40, 70 ... Vehicles equipped with compressors, 41, 7
1 ... vehicle body, 42, 72 ... wheels, 43 ... front mast,
44 ... Outrigger, 45 ... Driver's seat, 46 ... Engine, 4
7 ... Compressor control panel, 48 ... Cable reel, 49
... rear mast, 52 ... air cooling device.

Claims (4)

[Claims] 1. A main device having a water-cooled cooling part and a casing for housing the cooling part, and a water cooling device provided separately from the main device for cooling the cooling part. compressor. 2. The compressor according to claim 1, wherein a cooling water introducing device for introducing cooling water from the outside is provided in a cooling portion of the main device. 3. A cooling part of the main device is composed of a water-cooled aftercooler for cooling compressed air and a water-cooled oil cooler for cooling lubricating oil, and the water cooling device is cooled by an aftercooler and an oil cooler. A radiator that circulates water,
The compressor according to claim 1, further comprising an air-cooling fan that cools the cooling fan and a fan motor that drives the cooling fan, and an air-cooling type oil cooler that cools the lubricating oil by being cooled by the cooling fan in the vicinity of the radiator. . 4. A vehicle body, front and rear wheels rotatably provided on the vehicle body, a main device provided between the front and rear wheels laterally of the vehicle body, and a water cooling device provided on an upper surface of the vehicle body. A vehicle equipped with a compressor characterized by being configured from.