JPH0735780B2 - Multi-cycle compressor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-cycle compressor having a simple structure in which compressed air is continuously supplied using a relatively small power source.

[0002]

2. Description of the Related Art Conventionally, various air compressors have been developed which serve as a power source for various devices or which function as a pump by ejecting compressed air. For example, compressed air is ejected by a piston motion, this compressed air is stored in a storage tank, and it is possible to continuously eject compressed air. It is known that the compressed air is continuously supplied.

[0003]

However, among the means for supplying the compressed air continuously as described above, the one which stores the compressed air in the storage tank once takes a long time to store the air and starts the operation. It was unsuitable when it was necessary to supply compressed air quickly afterwards. In addition, strong energy is required in order to obtain a high atmospheric pressure in the process of temporarily storing compressed air, and installation is difficult when a strong power source cannot be obtained. On the other hand, rotary compressors and the like have a large structure and require extremely high structural accuracy, and it is difficult to form them by a simple manufacturing process. Furthermore, it is difficult to supply air with a very high atmospheric pressure without temporarily storing compressed air in the air storage tank,
In addition, there is a problem that time and strong energy are required if the storage tank is once stored as described above.

In addition, a piston-moving type compressor is used to temporarily store compressed air in a storage tank.
If you quickly supply compressed air with high pressure,
It was difficult to continuously supply compressed air. That is, since the piston operation is performed, the supply of compressed air is interrupted during the intake operation (return operation). The present invention has been made in order to solve the various problems described above, and its purpose is to have an extremely simple structure and to start the supply of compressed air quickly with a relatively small power source, and further break the process. An object of the present invention is to provide a multi-cycle compressor that can continuously supply air without using the compressor.

[0005]

In order to achieve the above object, a multi-cycle compressor according to a first aspect of the present invention has a piston portion slidably inwardly slidably contacted with the piston portion, and the piston portion is compressed when the piston portion moves forward. An exhaust port through which air is exhausted,
A plurality of cylinders each having an intake port that opens only when the piston moves back and introduces air from the outside, and a plurality of cylinders that are provided in communication with the exhaust ports of the cylinders, and are respectively provided inside by the forward movement of the piston portion. An exhaust pipe having an opening / closing stool that opens only during exhaust, and a driving force transmitted from a predetermined power source are transmitted as reciprocating motions to each piston portion, and the transmission is always at least 1 or more among all piston portions. Driving force transmitting means for causing the piston part to be in the forward operation state (exhaust state).

On the other hand, a multi-cycle compressor according to a second aspect is the multi-cycle compressor according to the first aspect, wherein the power source is a rotary power source, and the driving force transmitting means is a rotation from the rotary power source. A deceleration gear for decelerating the operation, a clutch mechanism for reversing the rotating operation at every predetermined rotating operation, and a cylinder provided in each of the cylinders so as to extend in the cylinder expanding direction, and a predetermined rotation speed by the reversing rotating operation. A shaft having a threaded outer periphery that is inverted every time, a moving body that is screwed into the outer side of the shaft and reciprocates by the rotational movement of the shaft, and the reciprocating body of the moving body that connects the moving body and the piston portion. An arm part that reciprocates the piston part together with the operation.

[0007]

According to the multi-cycle compressor having the above construction, the piston of each cylinder reciprocates by the driving force transmitting means, and the forward movement causes the compressed air to be ejected from the exhaust port. The atmospheric pressure of the compressed air can be adjusted by the operating speed of the piston, and the air pressure can be increased by increasing the speed. Then, the jetted air flows into the exhaust pipe, opens the on-off valve in the exhaust pipe, and flows into the focusing portion. That is, the air ejected from each cylinder flows through the respective exhaust pipes to the converging portion and is ejected to a predetermined place. Here, the operation of the pistons by the driving force transmitting means is not performed all at the same time, but is always performed so that at least one piston is always moving forward. For example, in the case of two cycles, adjustment is made so that when one piston finishes the forward movement, the other piston returns and finishes the forward movement. Therefore, as the number of cylinders is increased and the number of cycles is increased, it is possible to reduce the pulsation of the air pressure of the compressed air jet.

Further, according to the invention of claim 2, the driving force transmitting means decelerates and transmits the rotational driving operation transmitted from the rotational power source by the reduction gear, so that, for example, by a power source such as a motor having a small torque. Even if there is, sufficient force can be secured to move the piston. In this way, the power source of a relatively small torque makes it possible to quickly start the supply of compressed air, and to supply the compressed air continuously without interruption. Also, since the rotational drive operation obtained from the power source is decelerated and transmitted, the piston can be operated with a strong force, compressed air with high atmospheric pressure can be supplied, and the operating speed of the piston can be adjusted. It is also possible to adjust the atmospheric pressure.

[0009]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is an explanatory diagram showing a configuration of a multi-cycle compressor according to an embodiment. The present embodiment is a 2-cycle compressor having the simplest configuration.

The compressor 10 has two cylinders 12.
And 14, and pistons 16 are installed inside the cylinders 12 and 14, respectively. Piston 1
6 is provided so as to be slidable in each cylinder 12 and 14. The bottom wall 18 of each cylinder 12 and 14 on the air chamber 100 side is formed with an exhaust port 20 through which compressed air is discharged based on the air compression action of the forward movement of the piston 16 (operation in the direction of arrow 200). Furthermore, the bottom wall 1
8, the piston 16 moves back (movement in the direction of arrow 300)
Two suction ports 22 are formed to introduce the outside air into the air chamber 100 when performing the above. The suction port 22 is provided with a rotary valve 24 so that it is opened only when the piston 16 is returned. Valve 24
Closes the intake port 22 when the piston 16 moves forward.
In addition, a mesh filter 23 is provided outside the suction port 22 to prevent dust from being sucked into the air chamber 100.
Are installed respectively.

An exhaust pipe 26 is attached to each of the exhaust ports 20 and is in a state of communicating with the air chamber 100. Then, the two exhaust pipes 26 are merged into one on a further downstream side of the air discharge to form a converging portion 28. A turning valve 30 is attached to a transition portion from the two exhaust pipes 26 to the converging unit 28, and one of the exhaust pipes is closed depending on the turning state.

Next, a drive unit for reciprocating the piston 16 will be described. Two support cylinders 32a are provided on the rear surface of the piston 16 (on the side opposite to the air chamber 100),
32b is fixed so as to extend in the reciprocating direction. Further, on the other bottom portion 34 of each cylinder 12 and 14, support columns 36a and 36b are provided.
It is fixed so as to extend inward. Each support pillar 36a,
36b is reciprocally inserted through the support cylinders 2a and 32b.

Further, a shaft 38 is provided so as to pass through substantially the center position of the bottom portion 34 of each cylinder 12, 14 and extend to an intermediate position in the cylinder. Shaft 3
The outer surface of 8 is externally threaded. The cylinder outer end of the shaft 38 is configured to receive a driving force from a driving source. A moving body 40, which is internally threaded, is screwed into the threaded portion of the shaft 38.
Reference numeral 0 is fixedly connected to the support cylinders 32a and 32b by the fixed arms 42a and 42b, respectively, and is kept in a non-rotating state. The shaft 38 and the moving body 40 have a ball screw structure. Therefore, by rotating the shaft 38, the moving body 40 moves smoothly in the shaft extension direction. As a result, the support cylinders 32a and 32b and the piston 16 fixed thereto are moved. The shaft 38 is firmly fixed to the cylinder by a support member 37 provided in each cylinder and a bearing 39 provided at the center thereof.

In the present embodiment, one motor 42 is used as the rotational power source. Reducing gear boxes 44 that receive the rotational driving force from the motor 42 and reduce and transmit the rotational speed are respectively provided, and the rotational operation from the reducing gear box 44 is reversed at every predetermined rotational speed. Clutch means 46 is provided and its rotational movement is transmitted to the shaft 38. That is, by reversing the shaft 38 at every predetermined number of rotations, the moving body 40 is reciprocated and the piston 16 is moved.
Reciprocating motion occurs. In addition, such a shaft 38
For the reversal of the motor 42 for each predetermined rotation speed, it is not always necessary to provide the clutch means 46 as described above, and the current supply is adjusted by installing the rotation direction switching circuit in the power supply portion to the motor 42 itself to adjust the motor 42. It is also possible to reverse the rotation itself.

Further, in this embodiment, the reciprocating motion of the piston 16 is adjusted so that one piston 16 always performs the forward movement (the movement in the direction of the arrow 200), and in the case of two cycles as in the present embodiment. The piston 16 of the cylinder 12
When the forward movement is completed, the position of the moving body 40 is set so that the piston 16 of the cylinder 14 is fully returned, and the power transmission by the motor 42 is performed. Therefore, since the two pistons 16 and 16 always move in opposite directions, one of them is always moving forward, and the supply of compressed air continues without interruption. For example, when the piston 16 of the cylinder 12 is moving forward and the piston 16 of the cylinder 14 is returning, the compressed air is ejected from the exhaust port 20 on the cylinder 12 side, and the compressed air is rotated through the exhaust pipe 26. Air is flowed into the focusing portion 28 side in a state where the valve 30 is pushed and rotated to close the exhaust pipe 26 side of the cylinder 14 side as illustrated. On the other hand, on the cylinder 14 side, the rotary valve 24 of the intake port 22 is in an open state, and the piston 16 returns while introducing air from the outside into the air chamber 100.

As described above, according to this embodiment, the supply of the compressed air is started at the same time as the operation is started, and the operation of the piston 16 is adjusted so that the compressed air of, for example, 30 atm is focused.
It is possible to eject from. And piston 1
Since the operation of No. 6 is alternately performed as the forward operation, the pulsation of the atmospheric pressure is generated, but the compressed air can be continuously supplied without interruption.

Next, FIG. 2 shows an example of a three-cycle compressor. In this embodiment, three cylinders 50, 52 and 54 are installed as shown. The internal structure of each of the cylinders 50, 52, 54 is the same as that of the example shown in FIG. 1, so its illustration is omitted and only the operating position of the piston 16 is shown. Further, in the present embodiment, the rotary valves 30a, 30b and 30c are attached to the transition portions from the three exhaust pipes 26 to the converging portion 28, that is, the final portions of the exhaust pipes 26, respectively, to blow out air. Only the rotary valve of the exhaust pipe 26 that opens is configured to open by the exhaust pressure.

Further, in this embodiment, two cylinders 50 are used.
The operation of the piston 16 with respect to Nos. 52 and 52 is set to be performed by using one motor 42 as a power source as in the case of FIG. That is, the position is set such that when the piston 16 of the cylinder 50 is fully moved forward, the piston 16 of the cylinder 52 is fully retracted. on the other hand,
The piston 16 of the cylinder 54 is configured to be driven by a motor 43 which is a unique drive source, and the operating position of the piston 16 is set so as to operate at an intermediate position between the pistons 16 of the cylinders 50 and 52. ing.

Next, based on FIG. 3, each cylinder 50, 5 will be described.
The piston operation of 2 and 54 will be described. First, FIG. 1A shows a state in which the piston 16 of the cylinder 50 has finished the forward movement. At this time, the piston 16 of the cylinder 52 is in the state where it has fully returned to its original position. Further, the piston 16 of the cylinder 54 is at the intermediate position of the forward movement.
Therefore, in the state of FIG. 7A, the compressed air is supplied by the two cylinders 52 and 54 thereafter. FIG. 6B shows a state in which the piston 16 of the cylinder 54 has moved forward, and after that, only the compressed air supply operation by the piston 16 of the cylinder 52 is performed.

Next, FIG. 6C shows a state in which the piston 16 of the cylinder 52 has been fully moved forward. Therefore, the compressed air supply thereafter is performed only by the operation of the piston 16 of the cylinder 50. Further, FIG. 7D shows a state in which the cylinder 54 has fully returned. The compressed air supply operation thereafter is performed by the operation of the two pistons of the cylinders 50 and 54.

As described above, by adding the cylinders 50 and 52 that always perform opposite piston operations and the cylinder 54 that performs an intermediate operation therebetween, compressed air supply by one cylinder and compressed air supply by two cylinders are performed. It becomes possible to carry out each of the operations alternately and continuously. By further increasing the cycle and setting, for example, four cylinders, it is possible to perform the compressed air supply operation in a combination of two cylinders. In that case, two motors 42, which are power sources, are provided. It is possible to drive two cylinders so that they operate in opposite directions.

FIG. 4 shows another embodiment in which the inside of the cylinder 12 is different. In this embodiment, the piston 1
A sealed bag body 41 (may be a bellows-shaped member) is provided between 6 and the support member 37, and lubricating oil 43 for lubrication and cooling is filled inside. The piston 16 is installed so that it can follow the reciprocating motion of the piston 16 and oil does not leak. The cylinder 12 has a large diameter portion 12 so that the bag body 41 is not compressed when the piston 16 is returned.
a is formed, and an air vent hole 45 is formed in the large diameter portion 12a.

FIG. 5 shows another configuration for threading the outer circumference of the shaft 38. That is, as shown in the drawing, the screws in the opposite directions are formed to intersect with each other, and the moving body 40 is configured to move according to the groove of the reciprocating screw 49. With such a configuration, the moving body 40 can be reciprocally moved while the shaft 38 is always rotated in one direction, and a mechanism for inverting the shaft is unnecessary. That is, the motor 42
The rotary motion may be transmitted to the shaft 38 as it is from the reduction gear such as the jack gear 47. In this embodiment, the rotational force of the motor 42 is directly transmitted to the jack gear 47 by a belt (fan belt or the like).

Next, an example in which the multi-cycle compressor of the above embodiment is applied will be described below. Figure 6
An example of an air wiper for a vehicle proposed by the applicant (utility model registration No. 1501677) used as an air supply source is shown. 2 according to the embodiment inside the vehicle 60
A cycle compressor 10 is installed. In this example, the engine of the vehicle 60 itself is used as the power source. As described above, even when power is obtained from the engine 62, since the reduction gear box 44 is installed, a heavy burden is not imposed and the operation of the vehicle 60 is not hindered. It is also possible to separately install a small drive motor without obtaining power from the engine 62 as described above.

As described above, when the multi-cycle compressor of the present application is used for the air wiper, compressed air can be quickly supplied when the wiper is needed, and high-pressure air can be jetted. Further, compressed air can be continuously supplied without the need to install a large-scale air storage tank, which is extremely useful as an air supply source for the air wiper. Particularly, in an electric vehicle, it is preferable to move the two-cycle compressor 10 by using the power of a motor that is a drive source thereof. In that case, the wind turbine type generator as described below is installed in the air flow path. It is also possible to charge the battery that is the power source.

Next, FIG. 7 shows a case where the power generator is used as the power of the generator. As shown in FIG.
It is possible to install a plurality of small windmill-shaped generators in the portion 8 to form a turbine-type power generator. Since the compressor of the present invention can supply strong compressed air, it is possible to rotate the plurality of generators 64 and store the electric power obtained by the operation in the battery 66. When used as such a power generator, it is preferable to use it as an emergency power generator in a general household as shown in FIG. That is, a rotary power source 68 (engine or the like) that can be driven by gasoline or kerosene is installed, and the rotary drive force obtained from this is used to drive the two-cycle compressor 10 according to the present embodiment to move a plurality of small generators 64. It is possible to obtain an indoor power source with a simple configuration.

The present invention is not limited to the configuration of each of the above embodiments, and various modifications can be made within the scope of the gist thereof. For example, it is possible to use a hydraulic system for the driving force transmission means for the reciprocating movement of the piston, instead of the threaded shaft and the moving body as described above. Further, the number of cylinders, that is, the number of cycles, can be increased in a place where it is not necessary to consider the increase in size, whereby compressed air with less pulsation can be supplied.

[0028]

As described above, according to the multi-cycle compressor of the present invention, the predetermined compressed air can be supplied immediately after the compressor is started, and the supply operation can be continuously performed without interruption. It can be carried out. Furthermore, not only is the structure simple and easy to manufacture,
Even a small power source with a relatively small torque can be used for differential operation, and it can be effectively operated by being installed in a place with a limited space, for example, in a vehicle.

[Brief description of drawings]

FIG. 1 is a structural explanatory view of a two-cycle compressor according to an embodiment.

FIG. 2 is a schematic configuration diagram of a 3-cycle compressor according to an embodiment.

3 (A), (B), (C) and (D) are operation explanatory views of a three-cycle compressor.

FIG. 4 is a schematic cross-sectional view of another embodiment in which the inside of the cylinder has a different configuration.

FIG. 5 is a schematic cross-sectional view of another embodiment in which the shaft has a different structure.

FIG. 6 is an explanatory diagram showing an example in which the two-cycle compressor according to the embodiment is applied to an air wiper for a vehicle.

7 (A) and (B) are a configuration diagram of a power generation part and an installation state explanatory diagram of the device when applied as a home power generation device.

[Explanation of symbols]

 10 2 cycle compressor 12, 14, 50, 52, 54 cylinder 16 piston 20 exhaust port 22 intake port 38 shaft 40 moving body 42 motor as power source

Claims (2)

[Claims] 1. A piston portion slidably inwardly reciprocally movable, an exhaust port from which compressed air is discharged when the piston portion moves forward, and an air opening from the outside that opens only when the piston moves backward. An exhaust pipe having a plurality of cylinders each having an intake port to be introduced, and an on-off valve provided in communication with the exhaust port of each of the cylinders and having an opening / closing valve therein that is opened only when exhausted by the forward movement of the piston portion. And a driving force transmitted from a predetermined power source is transmitted as a reciprocating motion to each of the piston parts, and at least one or more piston parts among all the piston parts are always in a forward operation state (exhaust state). A multi-cycle compressor, comprising: 2. The multi-cycle compressor according to claim 1, wherein the power source is a rotary power source, and the driving force transmission means is a reduction gear that reduces rotational operation from the rotary power source.
A clutch mechanism for reversing the rotating operation at every predetermined rotating operation, and a clutch mechanism provided so as to extend in the cylinder extending direction in each of the cylinders, and an outer periphery that is reversed at a predetermined rotation speed by the reversing rotating operation is threaded. A shaft, a moving body that is screwed into the outer side of the shaft and reciprocates by the rotational movement of the shaft, and connects the moving body and the piston portion, and reciprocates the piston portion together with the reciprocating movement of the moving body. A multi-cycle compressor including: