KR200449915Y1

KR200449915Y1 - Milking Watering Pump

Info

Publication number: KR200449915Y1
Application number: KR2020100003503U
Authority: KR
Inventors: 천우욱
Original assignee: 천우욱
Priority date: 2010-04-05
Filing date: 2010-04-05
Publication date: 2010-08-19

Abstract

A milking watering pump is disclosed that is configured to prevent corrosion and wear of the motor shaft of the watering pump. The disclosed watering pump includes a drive motor, a casing coupled to the front of the drive motor, and formed with an inlet and an exhaust port, mounted on the motor shaft end of the drive motor, and generating a vacuum while being rotated by receiving the driving force of the motor inside the casing. In the milking watering pump consisting of an impeller, an annular step is formed on the motor shaft at a point penetrating the rear of the casing, and is fitted between the impeller and the annular step provided on the motor shaft and is burnt by a spring. An elastic sealing ring is installed to be in close contact with the annular step and seals the inside of the casing. Comprising a shaft protector fixed to the And a gong.

Description

Milking Watering Pumps {WATER PUMP FOR MILKER}

The present invention relates to a milking watering pump, and more particularly to a milking watering pump configured to prevent corrosion and wear of the motor shaft of the watering pump.

Milking from milking cows is done through milking systems at most sites. This milking system uses the same principle as the calf sucks into the mouth, for example by inserting a teat cup in the cow's nipple and alternately generating a vacuum in the teat cup, the cow's breast under the action of vacuum and atmospheric pressure. Is configured to withdraw milk from the.

In general, the milking system is composed of a combination of various devices, unlike general machines, and varies in size, but the essential principles are the same. Bucket-type milkers are also used in small-scale ranches, but pipeline milking systems suitable for full-time farmers are common because workers do not need to carry milk directly. In general, the pipeline milking system is composed of a vacuum generator and control unit consisting of a watering pump, a vacuum tank, a vacuum regulator, a milking unit consisting of a teat cup, a liner, an air hose, a milk hose, a gripper, and a milk pipe. Consists of a conveying device and a cleaning unit.

The watering pump for generating a vacuum in the above-described pipeline milking system is the most important device in the milking system, which is expensive and almost dependent on imports. The conventional milking pump for milking includes a driving motor, a casing coupled to the front of the driving motor, and formed with an inlet and an exhaust port, and mounted to the motor shaft end of the driving motor and being rotated by receiving the driving force of the motor inside the casing. It consists of an impeller that generates a vacuum. And, to seal between the drive motor and the casing, the O-ring is fitted to the motor shaft shaft and in close contact with the rear end of the O-ring includes a steel ring for fixing the O-ring in close contact with the O-ring.

Here, when the milking watering pump rotates an appropriate amount of water in the casing, heavy water produces a seal ring of substantially the same thickness along the inner wall of the casing by centrifugal force, and the cavity surrounded by the inner wall of the seal ring and the impeller blades. It is configured to generate a vacuum while performing intake and exhaust actions through the intake and exhaust ports using the change in the volume depending on the rotational position.

However, the conventional milking watering pump has a structure in which water is supplied into the casing to generate a vacuum, so that the water supplied into the casing comes into contact with the motor shaft, and the motor shaft is corroded or continues to corrode. There was a problem that the shaft is broken.

In addition, the conventional milking watering pump fixes the O-ring provided to seal between the drive motor and the casing through a snap ring made of steel, so that the snap ring may be damaged by corrosion when it comes in contact with water. Therefore, there is a problem in that the broken snap ring cannot support the O-ring and seal between the drive motor and the casing, so that the necessary vacuum pressure can not be generated in the casing. There was a problem that occurred.

The present invention has been made to solve the above-mentioned problems, the object of which is to prevent the corrosion and wear of the motor shaft of the watering pump, as well as to provide a milking watering pump for improving the sealing force between the motor and the casing To provide.

In order to achieve the above object, the present invention provides a drive motor, a casing coupled to the front of the drive motor and formed with an inlet and an exhaust port, and mounted on the motor shaft end of the drive motor and being rotated by the driving force of the motor in the casing. In the milking watering pump consisting of an impeller while generating a vacuum, an annular step is formed on the motor shaft at a point penetrating the rear of the casing, and is fitted between the impeller and the annular step installed on the motor shaft. An elastic sealing ring is installed to be elastically in close contact with the annular step by the spring and to seal the inside of the casing. Includes a shaft protector secured on the motor shaft while supporting Characterized in that comprised over.

The present invention not only prevents water from contacting the motor shaft through a shaft protector fitted to the motor shaft to prevent corrosion and abrasion of the motor shaft of the watering pump, and the shaft protector is elastically supported by pressing the elastic sealing ring. The sealing ring is firmly in close contact with the annular step of the motor shaft, so that the sealing force between the motor and the casing is greatly improved.

1 is an exploded perspective view showing the configuration of the milking watering pump according to the present invention,
Figure 2 is a cross-sectional view of the combination of Figure 1 according to the present invention,
3 and 4 are views for explaining the elastic sealing ring and the shaft protector in the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Attached Figure 1 is an exploded perspective view showing the configuration of the milking watering pump according to the present invention, Figure 2 is a cross-sectional view of the coupling of Figure 1 according to the present invention, Figures 3 and 4 is an elastic sealing ring and shaft in the present invention It is a figure for demonstrating a protective equipment.

1 and 2, the milking watering pump according to the present invention is a driving motor 10, the casing 20 is coupled to the front of the drive motor 10, the inlet port 21a and the exhaust port 21b is formed. And an impeller 30 mounted on the end of the motor shaft 100 of the driving motor 10 and generating a vacuum while rotating by receiving the driving force of the motor 10 from inside the casing 20. More specifically, the casing 20 is a rear case 22 coupled to the motor case 11 surrounding the motor 10 and the installation coupled to the front of the rear case 22 is installed impeller 30 It consists of a front cover 21 forming a space (S). The diaphragm 40 is disposed between the rear case 22 and the front cover 21. On the other hand, the drive motor 10 and the casing 20 may be mounted on a separate pedestal (50). The milking watering pump configured as described above rotates the impeller 30 inside the casing 20 by introducing an appropriate amount of water into the casing through the front cover 21, and heavy water is generally along the inner wall of the casing by centrifugal force. By creating a sealing ring of the same thickness, the volume of the cavity surrounded by the inner wall of the sealing ring and the impeller 30 blades is changed according to the rotational position, through the intake and exhaust ports of the casing 20, Configured to generate a vacuum while producing an evacuation action.

The present invention is not only prevents corrosion and wear of the motor shaft 100 by the water supplied into the watering pump, it is characterized in that it is configured to improve the sealing force between the motor 10 and the casing 20 It is done.

To this end, the watering pump according to the present invention has an annular step 110 formed at a point passing through the rear of the casing on the motor shaft (100). That is, a through hole 20 through which the motor shaft penetrates is formed at the rear of the casing, and the motor shaft 100 is installed inside the casing 20 through the through hole 20. In this case, the annular stepped portion 110 serves to seal the inside of the casing 20 in close contact with the elastic sealing ring to be described later, and is supported by the bearing B installed in the motor case 11 to support the motor shaft 100. Serves to allow the casing 20 to rotate stably without a change in position.

Then, between the impeller 30 and the annular step 110 installed in the motor shaft 100 is fitted to the motor shaft 100, elastically in close contact with the annular step 110 by the spring 220 casing (20) An elastic sealing ring 200 for sealing the inside is installed. Here, the elastic sealing ring 200 may be installed and configured in various ways, but specifically, the front front fastener 210 and the circular O ring (R) that is in close contact with the annular step 110 is coupled to the front It is composed of a spring 220 is coupled to the rear of the front fixture 210, and a circular rear support 230 coupled to the spring 220. That is, the front fixture 210 is coupled to the O-ring (R) to be fixed to be in close contact with the annular step 110 without deforming the O-ring, the spring 220 is the rear support 230 to be described later When it is fixed while being pressed by the shaft protector 300, it provides elasticity to press the front fixture 210 so that the O-ring (R) can be firmly in close contact with the annular step (110).

In addition, the motor shaft 100 surrounds and protects the outer surface of the motor shaft between the impeller 30 and the annular step 110, and press-supports the elastic sealing ring 200 on the rear of the motor shaft 100. The shaft protector 300 is fixed. That is, the shaft protector 300 is inserted into the motor shaft 100 between the impeller 30 and the annular step 110 to perform the role of wrapping and protecting the outer surface of the motor shaft 100, and at the same time, the elastic sealing ring After pressing the 200, it is fixed on the motor shaft 100 to support the front fixture 210 so as to provide elasticity of the spring 220, so that the O-ring R can be firmly attached to the annular step 110. To play a role. Here, in detail, the shaft protective device 300 is fitted into the inner of the elastic sealing ring 200 and is fixed to the motor shaft 100 between the impeller 30 and the annular step 110 to protect the motor shaft. It is preferable that it is formed of a 310 and the annular pressing step portion 320 formed in the rear of the protective tube 310 and the pressure supporting the rear support 230.

Here, the shaft protector 300 is preferably made of stainless steel material. That is, when the shaft protector 300 is made of stainless steel, the water inside the casing does not corrode even when the water touches the shaft protector, and it is durable and can be used for a long time.

In addition, the front rubber ring 120 and the rear rubber ring 130 are fitted on the motor shaft 100 to which the protective tube 310 of the shaft protector is fixed so as to seal the front and rear surfaces of the protective tube 310. It is preferable. That is, the front rubber ring 120 is fitted to the inner surface of the front end of the protective tube 310 and the rear rubber ring 130 is fitted to the inner surface of the rear end of the protective tube to seal the inside of the protective tube, thereby front and rear of the protective tube 310. Water is introduced through the motor shaft 100 to prevent corrosion or wear. 2, the front and rear rubber rings 120 and 130 are annular front locking grooves 121 and rear locking grooves 131 at positions where the protection pipe 310 is installed on the motor shaft 100, respectively. After forming the, the front locking groove 121 and the rear locking groove 131 can be configured to be fixed to the front rubber ring 120 and the rear rubber ring 130, but not shown, the protective tube ( 310) An annular locking groove may be formed at the front and rear ends of the inner surface, respectively, so that the front rubber ring and the rear rubber ring may be fitted to the locking groove. Of course, the front rubber ring 120 and the rear rubber ring 130 not only serves to seal the water inflow into the protection tube, as well as the shaft protector 300 to the rear of the elastic sealing ring 200 When pressurized, the shaft protector 300 also serves to fix the motor shaft so as not to be pushed backward from the fixed position. In addition, in order to repair the motor due to a motor failure, when the shaft protector 300 is separated from the motor shaft 100, the shaft protector can be easily separated from the motor shaft by the front and rear rubber rings, and during the separation process. The shaft protector can prevent the motor shaft from being broken by hitting the motor shaft.

Now, the assembly and operation / effect of the milking watering pump configured as described above will be described.

First, the watering pump according to the present invention is coupled to the motor shaft 100 as shown in Figure 3 in the order of the elastic sealing ring 200, the shaft protector 300, the impeller 30. Here, in the state in which the elastic sealing ring 200 is fitted to the motor shaft 30, when the shaft protective device 300 is pressed into the motor shaft 100 at the rear side of the elastic sealing ring 200, the protective tube 310 of the shaft protective device is pressed. Is inserted into the elastic sealing ring 200, and the pressing step portion 310 of the shaft protector 300 pushes the rear support 230 of the elastic sealing ring. And, as shown in Figure 4 when the protective tube 310 of the shaft protector is fixed to the motor shaft 100 by the front rubber ring 120 and the rear rubber ring 130, the shaft protector 300 is an elastic sealing ring 200 While pressing the fixed on the motor shaft 200, the O-ring (R) of the elastic sealing ring supported by the shaft protector 300 is elastically in close contact with the annular step (110). When the impeller 30 is inserted into the motor shaft 100, the rear of the shaft protector 300 is tightly supported by the impeller 30 so that the shaft protector and the elastic sealing ring are more firmly fixed on the motor shaft. Then, when the front cover 21 is coupled to the rear case 22, the assembly of the watering pump of the present invention is completed.

The watering pump of the present invention assembled as described above can prevent corrosion and wear of the motor shaft of the watering pump by preventing water from contacting the motor shaft through a shaft protector fitted and fixed to the motor shaft as shown in FIG. 4. There is an advantage that it can. In addition, the shaft protector fixed on the motor shaft is pressure-supported by the elastic sealing ring is configured so that the elastic sealing ring is firmly in close contact with the annular step of the motor shaft has the advantage that the sealing force between the motor and the casing is significantly improved.

10: motor 20: casing
30: impeller 40: diaphragm
50: pedestal 100: motor shaft
110: round stepped ring 120 front rubber ring
130: rear rubber ring 200: elastic sealing ring
210: front stopper 220: spring
230: rear support 300: shaft protector
310: protective tube 320: pressing step portion
R: O-ring

Claims

For milking consisting of a drive motor, a casing coupled to the front of the drive motor and formed with an inlet and an exhaust port, and an impeller mounted on the motor shaft end of the drive motor and rotating while receiving the driving force of the motor from inside the casing. In the watering pump,
An annular step is formed on the motor shaft at a point penetrating the rear of the casing,
An elastic sealing ring is installed between the impeller and the annular stepper installed in the motor shaft, and is fitted to the motor shaft and elastically closes to the annular stepper by a spring to seal the inside of the casing.
And a shaft protector fitted to the motor shaft to cover and protect the outer surface of the motor shaft between the impeller and the annular step, and to be fixed on the motor shaft while pressing and supporting the elastic sealing ring to the rear.

The method of claim 1,
The elastic sealing ring is composed of a circular front fastener which is coupled to the O-ring in close contact with the annular step in front and a spring coupled to the rear of the front fastener, and a circular rear support coupled to the spring,
The shaft protector is fitted inside the elastic sealing ring and is fixed to the motor shaft between the impeller and the annular step to protect the motor shaft, and the annular formed to the rear of the protective tube and the pressure support of the rear support Composed of a press step,
On the motor shaft between the impeller and the annular step, the front rubber ring is fitted to the inner surface of the front end of the protective tube and the rear rubber ring is fitted to the inner surface of the rear end of the protective tube to seal the front and rear of the inner surface of the protective tube. Milking watering pump.

The method according to claim 1 or 2,
The shaft protector is milking watering pump, characterized in that consisting of stainless steel material.