KR101350084B1 - Speed controlling device for a fluid sprayer - Google Patents

Abstract

The present invention relates to a speed control device for a rotating fluid atomizer that can improve the efficiency and ease of maintenance while controlling the rotation of the nozzle tube by using the fluid pressure and centrifugal force to reduce the cost and duration of the fluid atomizer installation. It has a spray housing having a pipe connection for connecting the fluid pipe to be supplied with the fluid to be sprayed on the upper side, and the inlet port which is connected to the pipe connection while being freely rotated inside the spray housing can be supplied with fluid In the rotation type fluid atomizer is configured by combining a nozzle tube having a nozzle tip for spraying fluid to the outside;
The fluid sprayer is further provided with a speed control device for rotating the nozzle tube at a desired speed without receiving power from the outside so that the fluid can be sprayed normally in the desired position in a straight line, the speed control device, It consists of a control housing which has an airtight means on one side of the spray housing and integrally formed with a cover that is intermittent as a fixing means, and a control means installed inside the control housing to maintain a constant rotational speed of the nozzle tube. The control means includes a centrifugal force generator for generating a centrifugal force based on the rotational force of the nozzle tube, and a braking force generator for imparting a braking force based on the power of the centrifugal force generator.

Description

SPEED CONTROLLING DEVICE FOR A FLUID SPRAYER}

The present invention relates to a speed control device for a rotating fluid atomizer, and more particularly, a nozzle is rotated at a desired number of revolutions by being applied to a fluid atomizer that can be supplied while rotating a fluid supplied from a fluid supply means. The present invention relates to the provision of a speed control device for a fluid atomizer that maximizes the spraying distance of the fluid to provide the crops with ease of fluid supply.

It is necessary to spray water, pesticides, and fertilizers on crops, but in order to replace scarce manpower and reduce the cost of planting, it is a trend to install and use facilities such as pumps, hoses and spray nozzles. And can be classified as rotary.
The fixed type has the advantage of low material cost and low installation cost because only the nozzle is attached to the hose connected to the pump without the operation part. There is a disadvantage.
Rotary can be sprayed in all directions, resulting in twice the spraying distance and a much larger spraying area than fixed. In addition, the sprayed liquid is sprayed in an arc by the rotational force of the nozzle, there is an advantage that is delivered to the back of the obstacle. However, if the rotation speed is high, there is a disadvantage that the spraying distance is shortened as the path of the spray liquid is bent.
Typically, the spray pressure of the pump is 30 ~ 50 bar, the rotational speed is known to be suitable for about 4 to 5 revolutions per minute, the spray distance is about 3 to 4 meters.
Rotating nozzle can be divided into sprinkler type and electric type using motor. Sprinkler type is difficult to get constant speed of 4 to 5 revolutions per minute. Electric type consists of motor and reducer Not only can it achieve uniform rotation speed but also speed control through additional devices such as controller, but it has high initial installation cost and high maintenance cost due to malfunction and permanent damage caused by failure or damage of controller and motor. There are disadvantages.

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Looking through Figure 6, which was applied as a utility model for the electric rotary fluid sprayer (No. 2010-5586) is as follows.

The rotating fluid sprayer 1 to which the prior art is applied has a spray housing 3 incorporating a motor 2 on one side, and a nozzle through a thrust bearing 4 inside the spray housing 3. Join the tube (5).

A worm cover 8 is formed on the worm 7 and the spray housing 3 provided on the shaft of the motor 2 by forming a drive gear 6 on an upper portion of the nozzle tube 5 located inside the spray housing 3. In contact with the worm wheel (9) to be maintained by) so that the nozzle tube (5) is rotated by receiving the power of the motor (2).

The upper part of the spray housing (3) is configured by coupling the housing cover 12 having the tube heat connection portion 11 with a fixing means such as fastening pins or screws to connect the fluid pipe 10 drawn from the fluid supply means and have.

Electric rotating fluid sprayer applied to the prior art as described above has a built-in motor to maintain a constant rotational speed, compared to the commonly used sprinkler has the advantage of easy to control the rotational speed, high pressure fluid is supplied There is a lot of possibility that leakage occurs in the path, or water from rainfall and snowfall flows into the fluid sprayer.

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If water is introduced into the fluid sprayer as described above, it may corrode some or all of the exterior and internal components of the motor located inside the spray housing and perform important functions, and may cause a short circuit when the power is applied. This causes the motor to fail, and eventually causes the fluid atomizer to be inoperable.

In addition, in the case of a motor for controlling the nozzle tube to rotate at a constant speed, power must be applied. Therefore, all wirings for power application must be connected to each fluid sprayer. You will need

As such, the electric rotary spraying machine must be equipped with a motor, a wire and a controller, and a wire must be connected to each other, and the operation cost is not enough, and maintenance and repair costs can not be ignored.

In this respect, sprinkler method is simple and inexpensive to install and operate, but the rotation speed is not uniform, so spraying (spraying) effect is remarkably lowered. The disadvantages are quality defects such as burnout and increased installation costs.

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Therefore, the present invention has been invented to solve the above problems, the spray housing having a pipe connection for connecting the fluid pipe to be supplied with the fluid to be sprayed on the top, and freely rotating the inside of the spray housing In the rotation type fluid atomizer having an inlet port that can be connected to the connection portion to receive the fluid, the nozzle tube having a nozzle tip for spraying the fluid to the outside;

In the fluid sprayer, a fluid having a constant pressure is introduced into a nozzle tube having an inlet port through a fluid tube, and then rotates the nozzle tube at a desired speed with a repulsive force obtained when it is injected through the nozzle tip to the outside. A speed control device is further provided to allow the fluid to be normally sprayed to a desired position, and the speed control device is formed to have an airtight means on one side of the spray housing and integrally formed with a cover that is controlled by a fixing means. A control means installed in the housing and the control housing to maintain a constant rotational speed of the nozzle tube, wherein the control means comprises a centrifugal force generator for generating a centrifugal force based on the rotational force of the nozzle tube, and generating the centrifugal force. Including a braking force generator for imparting braking force based on the power of the ruler;

The centrifugal force generated by the repulsive force obtained by spraying high-pressure fluid out of the nozzle, and the spring tension and braking jaw can be used to control the rotational speed of the nozzle tube on purpose, greatly reducing the cost and time required for installation compared to the electric rotary fluid sprayer Achieve the goal of shortening and increasing efficiency with ease of maintenance.

The present invention provides a nozzle bar with a repulsive force obtained when a fluid having a constant pressure inside the fluid atomizer is introduced into a nozzle tube having an inlet port through a fluid tube and then sprayed out through a nozzle tip. Speed control device that allows the nozzle tube to rotate at a constant speed irrespective of the fluid pressure to increase the spraying efficiency. It is an invention having various effects such as reducing installation costs while providing ease of maintenance by minimizing failure.

1 is an external perspective view showing a rotation type fluid atomizer to which a speed control device according to the present invention is applied.
Figure 2 is a top perspective view showing an extract of the speed control device applied to the rotary type fluid atomizer to which the technique of the present invention is applied.
Figure 3 is a bottom perspective view showing an extract of the speed control device applied to a rotating fluid sprayer applied with the technique of the present invention.
Figure 4 is a cross-sectional view of the speed control device of the rotation type fluid atomizer to which the technique of the present invention is applied.
Figure 5 is a planar cross-sectional view showing a speed control device of a rotary fluid sprayer to which the technique of the present invention is applied.
Figure 6 is a block diagram showing a rotating fluid sprayer applied with the prior art.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is an external perspective view showing a rotation type fluid sprayer to which a speed control device according to the present invention is applied, and FIG. 2 is a top perspective view showing a speed control device applied to a rotation type fluid spray device to which the technology of the present invention is applied, and FIG. Figure 4 is a bottom perspective view showing a speed control device applied to a rotating fluid sprayer applied with the technique of the present invention, Figure 4 is a cross-sectional view of the speed control device of the rotary fluid sprayer applied with the technique of the present invention, Figure 5 A cross-sectional configuration diagram showing a speed control device for a rotating fluid sprayer to which the technique of the present invention is applied will be described together.

Conventional rotary fluid atomizer 100 has a spray housing 103 having a pipe connection 102 to connect the fluid pipe 101 to receive the fluid from the fluid supply means at the top.

An inlet port 104 which is freely rotated through a thrust washer and a thrust bearing inside the spray housing 103 and connected to the pipe connection portion 102 to receive a high pressure fluid from the fluid pipe 101. It has, and combines the nozzle tube 106 having a nozzle tip 105 for spraying a fluid on the outside.

In the present invention, the fluid having a constant pressure is introduced into the nozzle tube 106 provided with the inlet port 104 through the fluid pipe 101 and then the repulsive force obtained when injected to the outside through the nozzle tip 105 The speed control device 110 is further installed on the fluid sprayer 100 to which the nozzle tube 106 rotates to rotate the nozzle tube at the desired speed so that the fluid can be normally sprayed to the desired position. It is done.

The speed controller 110 integrally forms a control housing 112 having a cover 111 interposed by a fixing means such as a bolt or a screw by forming an airtight means on one side of the spray housing 103, The control housing 112 is built in the control means 113 to maintain a constant rotational speed of the nozzle tube (106).

The control means 113 is composed of a centrifugal force generator 115 for generating centrifugal force based on the rotational force of the nozzle tube 106 and a braking force generator 116 for applying a braking force based on the power of the centrifugal force generator 115. do.

The centrifugal force generator 115 is coupled to the drive gear 117 to receive the rotational force of the nozzle tube 106 that rotates by the fluid pressure on the nozzle tube 106, the drive gear 117 The disk 118 is provided inside the control housing 112 to generate centrifugal force while being rotated by receiving power.

One or more speed increases between the drive gear 117 and the disk 118 and the bottom surface of the disk 118 to amplify the rotational force of the drive gear 117 to rotate the disk 118 at high speed to generate centrifugal force. The gear 119 is installed and configured.

The disk 118 is configured in the form of a plate on the garden so that there is no tremor or vibration during rotation, and the disk shaft 121 is formed on the upper and lower sides, the friction force reducing means such as a bearing on the upper and lower sides of the control housing 112 It is to be kept in combination with the congratulatory celebration housing 122.

The braking force generator 116 forms one or more braking jaws 125 on the inner wall surface of the upper surface position control housing 112 of the disk 118, and the disk is formed on the upper surface of the disk 118 by centrifugal force. A brake weight 126 is moved to the outer surface direction of the 118 to be coupled with the braking jaw 125 to stop the rotation of the disk 118.

Naturally, the braking weight 126 may be maintained by a guide to stably perform linear motion without being separated from the upper surface of the disk 118.

The brake weight 126 is connected to the brake spring 127 which is coupled to the disk shaft 121 protruding from the upper surface of the disk 118 so as not to rotate along the disk 118. To the center of the disk 118 and the tension is set above the set centrifugal force so that the braking weight 126 can move in the direction of the braking jaw 125, and the suspension stops when the nozzle tube 106 rotates above the set speed. It is configured to control at the desired speed by controlling in the form of re-rotation.

Since the elasticity of the braking spring 127 as described above may be given by appropriate mathematical calculations according to the centrifugal force setting, a detailed description thereof will be omitted.

Of course, the rotational speed of the disk 118 can be added or decreased through the speed increase gear 119, and the number of the braking jaw 125 and the braking weight 126 is varied according to the rotational speed of the disk 118.

That is, as the disk 118 rotates faster, the number of the braking jaws 125 and the braking weights 126 increases, and when the disk 118 slows down, the number of the braking jaws 125 and the braking weights 126 decreases. It will be obvious that the size of the braking housing 112 and the disk 118 is limited, so it is practically impossible to increase the number of the braking jaw 125 and the braking weight 126 by increasing the number of rotations. It would be desirable to maintain four numbers.

The brake spring 127 holding the brake weight 126 has a coupling ring 130 at the center in the drawing of the present invention, and protrudes the spring body 131 in an arc shape on both sides of the coupling ring 130. While showing the configuration of the S-shape formed with a coupling tip 132 for coupling with the brake weight 126 at the end of the spring body 131, in addition to this shape while forming the spring body 131 in a straight shape It will be obvious that the present invention is not limited to the example of the drawings since the coiling may be performed in various aspects such as the winding type.

The braking jaw 125 has an acute angle θ rather than maintaining a right angle with respect to the axis P of the control housing 112 and the disk 118 so that the braking weight 126 has the braking jaw 125. It is preferable to be able to maintain a stable state when contacted with).

Referring to the operation of the speed control device 110 of the rotary fluid sprayer 100, the technique of the present invention as described above is as follows.

The high pressure fluid is introduced into the nozzle tube 106 through the fluid tube 101 connected to the pipe connection 102 and sprayed through the nozzle tip 105 connected to the nozzle tube 105, and the nozzle tube 105 stops. In the state, it starts to rotate slowly and gradually speeds up.

As described above, when the rotation of the nozzle tube 105 is accelerated, centrifugal force is generated by the centrifugal force generator 115 constituting the speed controller 110, and the braking force generator 116 is operated by the centrifugal force to operate the nozzle tube. By temporarily stopping 106 and rotating it again, it is possible to control the rotation speed of the desired bar.

If you look at this process in detail,

When the rotation speed of the nozzle tube 106 is increased by the fluid pressure, the drive gear 117 coupled to the upper portion of the nozzle tube 106 rotates, and the rotational force is increased by the speed increase gear 119. Since the transfer to the furnace disk 118, the rotational force of the disk 118 is faster.

Then, the centrifugal force is generated in the braking weight 126 located on the upper surface of the disk 118 to overcome the tension of the braking spring 127 holding the braking weight 126, so that the braking weight 126 is the disk 118. The phenomenon of moving away from the axis center (P) of.

When the braking weight 126 reaches the position of the braking jaw 125 formed on the inner wall of the control housing 112 in the process of rotating, the braking weight 126 is eventually caught by the braking jaw 125. The rotation of the disk 118 is temporarily stopped.

When the disk 118 is temporarily stopped, the speed increasing gear 119 and the driving gear 119 are also in engagement, and thus the rotation of the nozzle tube 106 is stopped. When the disk 118 is temporarily stopped, the centrifugal force disappears and the brake is applied again. The weight 126 is returned to its original position by the restoring force of the braking spring 127.

Therefore, when the nozzle tube 106 is rotated again and the rotation speed (or rotation speed) is higher than the set rotation speed, the nozzle tube 106 is paused and then rotates again so that the rotation speed of the nozzle tube 106 is supplied from the outside. It is possible to control the proper rotation speed by using the pressure of the fluid without applying the power.

Of course, by setting in consideration of the fluid pressure, the rotation speed of the nozzle tube or the speed increase state of the gear and the number of rotation of the desired bar, it is possible to control by appropriately setting the number of the nozzle tube 106 should be rotated per minute.

The present invention as described above is a control bar for the purpose of the rotation of the nozzle tube by using the centrifugal force of the brake weight based on the fluid pressure, the spring tension connected to the brake weight, the braking jaw formed in the control housing without receiving power or power from the outside This can greatly reduce the cost and duration of the installation of the fluid atomizer, and has the advantage of increasing efficiency with ease of maintenance.

100; Fluid sprayer
103; Spray housing
106; Nozzle tube
110; Speed controller
112; Control housing
115; Centrifugal force generator
116; Braking force generator
118; disk
125; Braking jaw
126; Braking weight
127; Braking spring

Claims (3)

A spray housing having a pipe connection part connecting the fluid pipe to receive a fluid to be sprayed on the upper part;
In the rotation type fluid atomizer is configured to combine the nozzle tube having a nozzle tip for spraying the fluid to the outside having an inlet port that can be connected to the pipe connection and the fluid is freely rotated inside the spray housing ;
In the fluid sprayer, a fluid having a constant pressure is introduced into a nozzle tube having an inlet port through a fluid tube, and then rotates the nozzle tube at a desired speed with a repulsive force obtained when it is injected through the nozzle tip to the outside. Further providing a speed control device for normally spraying the fluid to the desired position;
The speed control device includes: a control housing integrally formed with one side of the spray housing having a cover interposed by fixing means by arranging an airtight means;
A control means installed in the control housing to maintain a constant rotational speed of the nozzle tube;
The control means includes a centrifugal force generator for generating a centrifugal force based on the rotational force of the nozzle tube;
And a braking force generator for providing a braking force based on the power of the centrifugal force generator. The method of claim 1, further comprising:
The centrifugal force generator, a drive gear coupled to the top of the nozzle tube to receive the rotational force of the nozzle tube rotated by the fluid pressure;
A disk installed inside the control housing to generate centrifugal force while rotating by receiving the power of the drive gear;
And a speed increaser gear disposed between the drive gear and the disc to increase the rotational force of the drive gear to increase the rotational force of the drive gear to generate the centrifugal force by rotating the disk at high speed. The method according to claim 1 or 2,
The braking force generator may include: a braking jaw formed on one or more inner walls of the control housing;
A braking weight which moves to an outer surface direction of the disk by centrifugal force on the upper surface of the disk and is coupled with a braking jaw to stop rotation of the disk;
The brake weight is connected to a brake spring coupled to the disk shaft protruding from the upper surface of the disk so as not to rotate along the disk. The brake weight is pulled toward the center of the disk below the set centrifugal force and tensioned above the set centrifugal force. Speed control device of a rotating fluid sprayer, characterized in that configured to move to.

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