KR101141555B1 - Driving apparatus of piston pump - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piston pump driving apparatus for a control vehicle, and aims to control one piston pump mounted in a vehicle to be operated as a high pressure pump having a small discharge amount and a low pressure pump having a large discharge amount.

In order to achieve the above object, the present invention provides a piston pump driving apparatus for a control vehicle comprising an engine and a piston pump installed to pump water by power transmitted from the engine, wherein the engine is disposed between the engine and the piston pump. And a variable connection device provided with a distributor and a plurality of electronic clutches so as to variably control the power and transmit the power to the piston pump.

Pump, Electronic Clutch, Large Capacity, Small Capacity, Variable Device

Description

Piston pump driving device for control vehicle {DRIVING APPARATUS OF PISTON PUMP}

The present invention relates to a piston pump driving apparatus for a control vehicle, and more particularly, a piston pump driving for a control vehicle for controlling one piston pump mounted in a vehicle to be operated by a high pressure pump having a small discharge amount and a low pressure pump having a large discharge amount. Relates to a device.

In general, a piston pump is a reciprocating piston operated by a crank. In the piston pump, when the piston moves to the right, the discharge valve is closed and the suction valve is opened so that the liquid is sucked into the cylinder. In addition, when the piston moves in the left direction, the intake valve is closed and the discharge valve is opened so that the liquid in the cylinder flows out of the discharge valve.

The crank is directly connected to a prime mover, which is another power source, driven by a belt, or driven with the piston rod of the steam engine and the piston rod of the reciprocating pump coaxially.

In addition, the piston pump generally uses a plurality of cylinders because the liquid delivered to one cylinder causes pulsation.

The piston pump is widely used in various agricultural machinery, quarantine and control cars, wildfire extinguishing cars, water supply vehicles and the like.

Since the above-mentioned vehicles require both a large capacity and a small capacity pump due to the characteristics of the work, a large / small capacity piston pump is mounted on each of them.

As shown in FIG. 1, the piston pump P includes a large capacity pump Pa and a small capacity pump Pb mounted on a vehicle, a farm machine, a special vehicle, and the like. In addition, the two piston pumps P are each connected to the engine 4 so as to be driven by power. Accordingly, the piston pump (P) is driven through the intermittent means selected according to the needs of large / small capacity during operation.

Such a conventional piston pump (P) has a problem that takes up a lot of space as two should be installed together in a limited mounting space of agricultural machinery and special vehicles.

In addition, since two large / small capacity piston pumps are mounted on agricultural machinery and special-purpose vehicles, respectively, there is a problem in that weight increase and manufacturing cost increase.

In addition, since the piston pump should be used alternately every time the large / small capacity is changed, there is a problem that the use is cumbersome and inconvenient.

The present invention has been proposed to solve the above problems of the prior art, and an object of the present invention is to operate a high pressure pump with a small discharge amount and a low pressure pump with a large discharge amount even with a single piston pump using power. have.

Another object of the present invention is to reduce the mounting space of the vehicle by allowing the piston pump to be used in both a large capacity and a small capacity.

Still another object of the present invention is to be able to easily change and use the high pressure small capacity and low pressure large capacity piston pump through the control of the electromagnetic clutch.

In order to achieve the above object, the present invention provides an engine and a pump driving apparatus for a control vehicle including a piston pump installed to pump water by power transmitted from the engine, wherein the engine power is between the engine and the piston pump. It characterized in that it further comprises a variable connection device provided with a distributor and a plurality of electronic clutch so as to variably control the delivery to the piston pump.

The variable connection device includes a distributor connected to one side of the output shaft of the engine and having power diverged by a plurality of pulleys having different diameters, and connected to drive the piston pump and having a diameter difference between the pulleys of the distributor. It characterized in that it comprises a first, second electronic clutch that is installed to intermittently pulleys connected to leave.

The distributor has a first pulley formed on one side of the first driven pulley connected to the output shaft, and a second pulley formed with a diameter larger than the first pulley on the other side of the distribution rotary shaft provided with the first pulley. It is characterized by.

The first and second electromagnetic clutches are characterized in that they are installed on both sides of the rotating shaft to intermittent the power transmitted to the piston pump.

The second electromagnetic clutch may be installed on the side of the second pulley of the distribution shaft.

The first pulley is formed with a diameter smaller than the third pulley is connected to the belt, the second pulley is formed with a diameter larger than the fourth pulley is characterized in that the connection is installed by the belt.

According to the present invention, it is possible to operate each of the large capacity low pressure discharge pressure type and the small capacity high pressure discharge pressure type with only one piston pump.

In addition, through the selection operation of the electronic clutch there is an effect that can easily control the switching of the piston pump to large / small capacity.

In addition, since only one piston pump can be installed and operated in a limited space of agricultural machinery and special vehicles, there is an effect that the space of the vehicle can be efficiently used.

In addition, since only one piston pump is installed in the vehicle, the pump can be operated variably, thereby improving the utilization of the pump.

In addition, the variable connection device can be used in small capacity high pressure discharge pressure type and large capacity low pressure discharge pressure type, so that it can be easily used for quarantine work, car wash, long distance water supply, forest fire extinguishing, fire pump, sprinkler, water supply facility, etc. There is.

Hereinafter, a preferred embodiment of the present invention will be described in more detail with reference to the accompanying drawings (the same components as in the prior art are denoted by the same reference numerals).

Prior to examining the piston pump according to the present invention, as shown in FIG. 1, a large-capacity pump Pa and a small-capacity pump Pb are mounted on a vehicle, a farm machine, a special vehicle, and the like, as shown in FIG. 1. . In addition, the two piston pumps P are each connected to the engine 4 so as to be driven by power. Accordingly, the piston pump P is selectively used during the operation according to the need for large / small capacity.

Since the above general structure has been described in the related art, duplicate description will be omitted.

Next, the features of the piston pump driving apparatus for the control vehicle according to the present invention will be described in detail with reference to FIGS. 2 and 3.

The piston pump drive device for a control vehicle according to the present invention includes an engine 4 for generating power, as shown in FIGS. 2 and 3. The engine 4 transmits power to the piston pump P exemplified among the various devices connected to the output shaft 6 by the belt 8.

In this way, between the engine 4 and the piston pump P, as shown in Figs. 2 and 3, the distributor 10 to variably control the power of the engine 4 to be transmitted to the piston pump (P). ) And a variable connection device 12 having a plurality of electromagnetic clutches (C).

The variable connection device 12 described above has a distributor 10 connected to the output shaft 6 of the engine 4, as shown in FIG. 3. In addition, the distributor 10 is provided with a first driven pulley 14 connected to the output shaft 6 of the engine 4 by a belt 8.

This distributor 10 distributes the power output from the engine 4 and allows the distributed power to be transmitted to the piston pump P. The distributor 10 is provided with first and second pulleys P1 and P2 having different diameters on the distribution shaft 17 so as to transmit power to the shaft 16 of the piston pump P. FIG.

The first and second pulleys P1 and P2 are formed to have different diameters, thereby differentially supplying power to the third and fourth pulleys P3 and P4 provided on the rotary shaft 16 of the piston pump P. Done.

 In addition, the first pulley P1 of the distributor 10 is connected to one side of the first driven pulley 14 so as to transmit power to the third pulley P3 installed on the rotation shaft 16 of the piston pump P. Is installed. The diameter of said 1st pulley P1 is formed smaller than 3rd pulley P3.

In addition, on the other side of the first pulley P1 installed in the distributor 10, the second pulley P2 is configured to transmit power to the fourth pulley P4 provided on the rotary shaft 16 of the piston pump P. Is installed. The diameter of said 2nd pulley P2 is formed larger than 4th pulley P4.

In addition, the variable connection device 12 connected to the first and second pulleys P1 and P2 of the distributor 10 by the belt 8 may include the first and second electromagnetic clutches as illustrated in FIG. 3. C1) and C2. The said 1st, 2nd electromagnetic clutch C1 and C2 are provided so that the power transmitted to the piston pump P may be interrupted.

The first and second electromagnetic clutches C1 and C2 are fixedly installed on both sides of the rotation shaft 16 for transmitting power to the piston pump P, respectively. The fixing means is a key member 17K and firmly fixes the rotor 18 and the rotation shaft 16. In addition, the first and second electromagnetic clutches C1 and C2 are respectively provided on one side of the third and fourth pulleys P3 and P4 installed to rotate idly on the rotation shaft 16.

The operation of the first and second electromagnetic clutches C1 and C2 is controlled by the first and second operation switches S1 and S2 provided in the control unit for controlling the power. The first operation switch S1 turns on the first electronic clutch C1 to be driven in a one-way method of a small capacity high pressure discharge type.

In addition, the second operation switch S turns on the second electronic clutch C2 so as to be driven in a two-way method of large-capacity low pressure discharge. At this time, when one of the first and second operation switches S1 and S2 is turned on, the other is turned off.

The electromagnetic clutch C includes a stator 22 having a coil 20 embedded therein, a rotor 18 surrounding the stator 22 and fixed to the rotary shaft 16 by fixing means, Lining (24) mounted to friction on one side of the rotor 18, and the leaf spring 26 on one side of the third, fourth pulley (P3) (P4) to frictionally contact the lining (24) It is configured to include an amateur (Amature: 28) that is mounted after the interposition.

In addition, the third and fourth pulleys P3 and P4 are provided in an idling structure on both sides of the rotation shaft 16 for driving the piston pump P, as shown in FIGS. 3 and 4.

These third and fourth pulleys P3 and P4 are formed to have large and small diameters, respectively, and are formed such that power is transmitted to the piston pump P with a differential.

As shown in FIG. 3, the third pulley P3 is installed in the rotational shaft 16 by the first electromagnetic clutch C1 in an idling structure and connected to the first pulley P1 by a belt 8. do.

In addition, the fourth pulley P4 is installed in the rotating shaft 16 by the second electromagnetic clutch C2 in an idling structure and is connected to the second pulley P2 by the belt 8.

3, the third pulley P3 and the first pulley P1 are connected to each other, and the fourth pulley P4 and the second pulley P2 are connected to each other as illustrated in FIG. 3. By connecting each other so that there is a difference in diameter, it is installed so that a difference in the discharge amount and the discharge pressure by the piston pump (P) can occur.

That is, the piston pump P can be driven by one method of a small capacity high pressure discharge type or two methods of a large capacity low pressure discharge through the control of the variable connecting device 12.

In addition, in the piston pump P, as shown in FIG. 5, the piston 19 connected to the rotation shaft 16 by the link 18 reciprocates the cylinder 20, thereby pumping water.

In addition, as shown in FIG. 6, the second electromagnetic clutch C2 may be installed on the side surface of the second pulley P2 of the distribution shaft 17 so as to perform power interruption. That is, the said 1st, 2nd electromagnetic clutch C1 and C2 can change a layout through design change within the range which can achieve an objective without being limited to an installation position.

Hereinafter, the effect | action of this invention made as mentioned above is demonstrated in detail.

<When using the first electronic clutch>

First, the first operation switch S1 provided in the variable connection device 12 of the pump driving device is turned on. At this time, the second operation switch S2 is turned off to cut off the power supply.

Power is applied to the first electromagnetic clutch C1 by the on operation of the first operation switch S1. As a result, the coil 20 of the stator 22 is magnetized in the first electromagnetic clutch C1 so that the rotor 18 and the armature 28 are attracted to each other by magnetic force.

The adsorption of the rotor 18 and the armature 28 causes the third pulley P3, which is idling by the power of the engine on the rotary shaft 16, to be directly connected to the first electromagnetic clutch C1.

As the third pulley P3 is directly connected, the power of the engine 4 is controlled by the first pulley P1, the third pulley P3, and the first electromagnetic clutch C1 of the distributor 10 connected by the belt 8. Drive the piston pump (P).

At this time, the driving of the piston pump (P) is operated in one way of a small capacity high pressure discharge type due to the difference in diameter of the pulleys during the On operation of the first electronic clutch (C1).

The small capacity high pressure discharge type as described above can be used for high pressure where the number of revolutions transmitted to the piston pump P is reduced and, on the contrary, the pressure is high and the pumping amount is small. The one method of such a small capacity high pressure discharge type can facilitate operations such as quarantine work, car wash, long distance water supply, forest fire extinguishing, and the like.

<When using the second electronic clutch>

First, the second operation switch S provided in the variable connection device 12 of the pump driving device is turned on. At this time, the first operation switch S is turned off to cut off the power supply.

Power is applied to the second electromagnetic clutch C2 by the on operation of the second operation switch S. As a result, the rotor 20 and the armature 28 are attracted to each other by magnetic force by magnetizing the coil 20 of the stator 22 in the second electromagnetic clutch C2. The adsorption of the rotor 18 and the armature 28 causes the fourth pulley P4, which was idling by the power of the engine 4 on the rotary shaft 16, to be directly connected by the second electromagnetic clutch C2. .

Since the fourth pulley P4 is directly connected, the power of the engine 4 is controlled by the second pulley P2, the third pulley P3, and the second electromagnetic clutch C2 of the distributor 10 connected by the belt 8. Drive the piston pump (P).

At this time, the driving of the piston pump (P) is operated in two ways, a large-capacity low pressure discharge due to the difference in the diameter of the pulleys when the on (On) operation of the second electronic clutch (C2).

In the above-described two-capacity large-capacity low pressure discharge type, the number of revolutions transmitted to the piston pump P increases and conversely, the pressure decreases, so that the pumping amount is large and can be used for low pressure. Such a small capacity high pressure discharge type 2 system can facilitate operations such as a fire pump, long distance water supply, sprinkler, water supply facility, and fire extinguishing.

The present invention is to allow a single pump to be operated variably when a large / small capacity pumping is required through a variable connection device, it can be widely used in the agricultural machinery and special vehicle manufacturing industry equipped with a piston pump have.

1 is a view schematically showing a piston pump drive relationship according to the prior art.

2 is a view schematically showing the configuration of a piston pump drive device according to the present invention.

FIG. 3 is a view showing the piston pump drive device shown in FIG. 2. FIG.

Fig. 4 is an enlarged view showing the installation of the electronic clutch shown in Fig. 3.

FIG. 5 is a view schematically showing the piston pump shown in FIG. 3. FIG.

FIG. 6 is a diagram showing another example of installation of the electromagnetic clutch shown in FIG. 3;

<Explanation of symbols for the main parts of the drawings>

4: engine 6: output shaft

8: Belt 10: distributor

12: variable connection device 14: the first driven pulley (Pully)

16: axis of rotation P: piston pump

C: Electronic clutch C1, C2: First and second electromagnetic clutch

P1: first pulley P2: second pulley

P3: Third Pulley P4: Fourth Pulley

Claims (6)

In a piston pump driving apparatus for a control vehicle comprising an engine (4) installed in the storage box of the control vehicle and one piston pump (P) installed in the storage box to pump water by the power transmitted from the engine (4) , Between the engine 4 and the piston pump P is provided with a distributor 10 and a plurality of electromagnetic clutch (C) to variably control the power of the engine 4 to be transmitted to the piston pump (P) It further comprises a variable connector 12, The variable connection device 12 is a distributor for connecting the power to the output shaft 6 of the engine 4, the power is branched by a plurality of first, second pulleys (P1) (P2) having a different diameter. (3) and third and fourth pulleys (P3) and (P4) connected to each other with a diameter difference between the first and second pulleys (P1) and (P2) of the distributor (10) and installed to drive the piston pump (P). First and second electromagnetic clutch (C1) (C2) is installed to intermittently), The distributor 10 is provided with first and second pulleys P1 and P2 having different diameters on the distribution rotation shaft 17 in order to transmit power to the rotation shaft 16 of the piston pump P, The first and second electromagnetic clutches C1 and C2 are installed at both sides of the rotation shaft 16 so that the power transmitted to the piston pump P can be interrupted. The first pulley (P1) is formed of a diameter smaller than the third pulley (P3) is connected to the belt 8, The second pulley (P2) is formed with a diameter larger than the fourth pulley (P4) piston pump drive device for a control vehicle, characterized in that installed in the belt furnace (8). delete delete delete delete delete

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