JPS6155383A - Pneumatic compressor - Google Patents

Abstract

PURPOSE:To increase capacity for supplying compressed air without requiring large size and electrical capacity by furnishing a plurality of compressors, and by driving them with motors individually. CONSTITUTION:A plurality of compressors 13A, 13B on an air tank 11. A plurality of motors 14A, 14B are installed to drive these compressors 13A, 13B individually. The compressed air from these compressors 13A, 13B is introduced into said air tank 11. This does not require any large-sized compressor or motor in order to increase the capacity of air supply, so that no high voltage is needed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an air compression device capable of supplying compressed air to a pneumatic nailer or the like.

[Prior Art] Generally, an air compressor has an air tank with a pressure m
It is equipped with a machine and an electric motor.

[Problems to be Solved by the Invention] In such an air compression device, if the supply capacity of compressed air is increased, the compressor and the electric motor will each become larger. As a result, the overall size and shape of the air compressor becomes large, requiring a large installation space, and the electric capacity of the motor increases, requiring a high voltage power source.

In addition, as a conventional air compression device, for example,
As shown in No. 58393, it has been proposed to drive two pressure ma with one electric motor, but when trying to increase the supply capacity of compressed air in this air compressor, it is necessary to will become larger. Therefore, in this case as well, the overall size and shape of the air compressor becomes larger, and a higher voltage power source is required as the electric capacity of the motor increases.

An object of the present invention is to provide an air compression device that can increase the supply capacity of compressed air without increasing the dimensions and electric capacity.

[Means for Solving the Problems] In order to achieve the above object, the air compressor according to the present invention includes a plurality of compressors, a plurality of electric motors that drive each pressure 1II machine, and a The gist thereof is that it has an air tank for accumulating the pressure of the generated compressed air.

[Function] The air compressor according to the present invention has a plurality of compressors and a plurality of electric motors that respectively drive each compressor. Compared to the compressor, the required compressed air supply capacity is
Each pressure 1i! It is possible to halve the discharge capacity of the machine and the electric capacity of each motor, and reduce each pressure 'E? It becomes possible to downsize the machine and the electric motor. Therefore, the air compression device can increase the supply capacity of compressed air without increasing the overall size and shape.

[Embodiment] Fig. 1 is a front view showing one embodiment of the present invention, and Fig. 2 is a front view showing one embodiment of the present invention.
FIG.

The air compression device 10 has an air tank 11 that can store compressed air, and is equipped with wheels 12 at the bottom of the air tank 11.

Two air compressors 10 are installed above the air tank 11 (
7) Pressure lTi1a13A, 13B and each JE compressor 3A,
Two electric motors 14A and 14 drive each of 13B.
It is equipped with B.

1tiylil 4A, 14B (7) Cover, the phone! A belt 16A is wound around a driving wheel (not shown) fixed to the output shaft of the a&' 114A, 14B and driven wheels 15A, 15B fixed to the crankshaft (not shown) of the compressor 13A, 13B. , 16B, compressor 1
It is transmitted to each of 3A and 13B. Pressure tIII machine 1
3A and 13B are rotated by the rotation of a crankshaft (not shown).
By reciprocating a piston (not shown) within the compression chamber, the air sucked into the compression chamber from the suction filters 17A, 17B can be compressed. The compressed air pressurized by each compression fi13A and 13B is discharged from the discharge pipes 18A and 18.
The air can be supplied to the air tank 11 via B.

The compressed air accumulated in the air tank 11 can be taken out from the take-out port 21 at a predetermined pressure after being reduced in pressure by the pressure-reducing valve 20 via the take-out pipe 19 and the pressure-reducing valve 2o. 20A is a pressure gauge that displays the pressure value of the compressed air reduced by the pressure reducing valve 20. Further, the air tank 11 is equipped with an automatic unloader device 22, and the air tank 11 is equipped with an automatic unloader device 22.
It is possible to control the maximum accumulated pressure within 1 below a certain value. 22A is a pressure gauge that displays the pressure value of the compressed air in the air tank 11. 23 is a drain part of the air tank 11.

Reference numeral 24 denotes a push button switch that enables drive control of both types of motors 14A and 14B. The air compressor 10 turns on one of the electric motors 14 by turning on the push button switch 24.
After starting motor A, the other motor 14B is started after a predetermined delay time has elapsed, making it possible to shift the rise timing of the starting currents of both types of motors 14A and 14B. A in Figure 3
indicates the current value of the electric motor 14A, and B indicates the current value of the electric motor a14B.

The air compressor IO is capable of emitting a warning using a buzzer or the like when the pressure value of the compressed air in the air tank 11 falls below the minimum necessary pressure state.

Next, the operation of the above embodiment will be explained.

The air compression device 10 includes two compressors 13A and 13B,
Since it has two electric motors 14A and 14B that drive each compressor 13A and 13B, the amount of compressed air required is greater than that of an air compression device that has one compressor and electric motor. For the supply capacity of each pressure 1ii machine 13A, 13
It is possible to reduce the discharge capacity of B and the electric capacity of each electric motor 14A, 14B by half, and it becomes possible to downsize master craftsman 1aal] A, 13B and electric motors 14A, 14B. Therefore, the air compression device 10 can increase the supply capacity of compressed air without increasing the overall size and shape. Furthermore, since the air compressor 10 does not increase the electric capacity of each electric motor 14A, 14B, it is possible to increase the compressed air supply capacity while being driven by a low voltage power source. It is.

Note that the air compressor 10 starts the other electric motor A14B after a predetermined delay time has elapsed after starting one of the electric motors 14A, so compared to the case where one large-capacity electric motor is used. , it is possible to suppress an excessive increase in starting current and stabilize the power consumption state of the power supply circuit to which both types of motors 14A and 14B are connected.

In addition, in the above embodiment, two compression units each, 13A and 13B, are used.
Although a case has been described in which the electric motors 14A and 14B are used, the air compressor according to the present invention may include three or more compressors and three or more electric motors.

[Effects of the Invention] As described above, the air compressor according to the present invention includes a plurality of compressors, a plurality of electric motors that drive each pressure 1ilea, and each pressure li! It has an air tank for accumulating compressed air generated in the machine.

Therefore, it is possible to increase the compressed air supply capacity without increasing the size and electric capacity.

[Brief explanation of the drawing]

FIG. 1 is a front view showing one embodiment of the present invention, and FIG. 2 is a front view showing one embodiment of the present invention.
The side view of the figure and FIG. 3 are diagrams showing changes in current of the air compressor according to the same embodiment. 10... Air compression device, 11... Air tank, 13
A, 13B... Compressor, 14A, 14B... Electric motor. Patent applicant Sekisui Chemical Co., Ltd. Representative Mototoshi Fujinuma Figure 1

Claims (1)

[Claims] (1) An air compression device that includes a plurality of compressors, a plurality of electric motors that drive each compressor, and an air tank that stores compressed air generated in each compressor.