KR102589450B1 - Water treatment actuator of oil leakage blocking type - Google Patents

Abstract

The present invention relates to a driving device for water treatment having an oil leak blocking structure. The driving device for water treatment according to one aspect of the present invention is coupled to the inside of the housing, connected to the motor unit, and includes an input reduction unit having a first gear at the bottom, and a second gear engaging with the first gear. It is divided by an output reduction unit that reduces the rotation transmitted from the input reduction unit and transmits it to the shaft, a main oil chamber that accommodates oil as an empty space inside the housing, and a main oil chamber and an internal partition wall, and the partition wall includes an overflow reduction unit. A flow groove is formed, and includes a side sub-oil chamber that receives oil overflowing from the main oil chamber through the overflow groove, and an upper cover that covers the upper part of the housing, and a cover insulation material is placed on the lower surface of the upper cover. are combined.

Description

Oil leak blocking type water treatment driving device {WATER TREATMENT ACTUATOR OF OIL LEAKAGE BLOCKING TYPE}

The present invention relates to a water leak-blocking drive device for water treatment that can block oil leaks occurring during the operation of the drive device.

A driving device for water treatment is intended to transmit rotational force in combination with an impeller shaft, and generally consists of a motor that generates rotational force and a reducer that reduces the rotational speed output from the motor.

A reducer is a device that is connected to a motor and receives driving force to obtain rotational output reduced as desired. Although these reducers are small and lightweight, they are widely used in various industrial fields because they are advantageous for transmitting high loads and can achieve high efficiency.

The reducer is equipped with a number of driving parts to transmit power and maintain appropriate rotational force, and appropriate lubrication is required for smooth operation of the driving parts.

Reducer lubrication methods can be broadly divided into splash lubrication and oil bath lubrication. Splash lubrication has a low oil level and lubricates internal parts such as bearings and gears by scattering oil, while oil bath lubrication has a high oil level and internal parts such as bearings and gears are completely submerged in lubricant.

In fields such as water treatment or food plants that are sensitive to oil leakage accidents, general-purpose driving parts with a so-called dry well structure, in which the reducer oil and the external rotating shaft do not directly contact, are mainly used to prevent oil leakage accidents in the reducer.

Among dry well products, the externally coupled type of reducer is a type that combines a separate reducer outside the main reducer to match the relevant rotation speed. It is characterized by a lower integrated casting structure, and the integrated type has a gear and gear suitable for the relevant rotation speed inside the main reducer. It is characterized by a hollow shaft that consists of a supporting shaft and rotates inside the reducer.

However, these conventional dry well products have the following problems.

First, the externally coupled type of reducer does not have an oil leak blocking function in the primary reducer directly connected to the motor, and the amount of oil required for smooth cooling and lubrication is limited due to the limitation of the oil bath size of the primary reducer, which has a relatively large operating load. It is vulnerable to durability, and oil leaks may occur around the input shaft of the main reducer due to wear of the oil seal. If the upper seal of the hollow shaft of the reducer is worn, oil may leak along the internal hollow shaft wall, and due to frictional wear depending on the external coupling connection. There are limits to durability.

In addition, in the all-in-one type, if oil seal wear occurs at the top of the hollow shaft during oil expansion due to operation, oil leakage occurs through the gap. There is an external expansion tank to prepare for oil volume expansion, but it is connected to a hose and can only be expanded externally when a certain pressure is applied. Oil can be transferred to the tank, and if the oil expands while the oil seal is worn, it does not rise to the external expansion tank, which requires constant pressure, but leaks through the oil seal gap, and the bearing grease leaks due to the oil seal of the lower bearing worn, and at the bottom of the reducer. As moisture collected in the lower cap of the gear shaft bearing located in freezes, its volume expands and bursts, causing leakage. The upper part of the gear shaft bearing, which is not submerged in oil, is exposed to moisture, making it vulnerable to durability, and there is no separate method for filling grease.

In addition, in conventional reducers, condensation occurs inside due to differences in internal and external temperatures, and this condensation phenomenon causes rust to occur on reducer parts.

Republic of Korea Patent No. 2160533

Therefore, the present invention was developed to solve the above-mentioned problems, and aims to provide a driving device for water treatment that can block oil leakage.

In addition, the present invention seeks to provide a driving device for water treatment that can suppress rust by preventing internal condensation.

Other objects of the present invention will become clearer through the examples described below.

The driving device for water treatment according to one aspect of the present invention is coupled to the inside of the housing, connected to the motor unit, and includes an input reduction unit having a first gear at the bottom, and a second gear engaging with the first gear. It is divided by an output reduction unit that reduces the rotation transmitted from the input reduction unit and transmits it to the shaft, a main oil chamber that accommodates oil as an empty space inside the housing, and a main oil chamber and an internal partition wall, and the partition wall includes an overflow reduction unit. A flow groove is formed, and includes a side sub-oil chamber that receives oil overflowing from the main oil chamber through the overflow groove, and an upper cover that covers the upper part of the housing, and a cover insulation material is placed on the lower surface of the upper cover. are combined.

The driving device for water treatment according to the present invention may have one or more of the following embodiments. For example, the motor unit may be provided with a mount plate for coupling to the housing, and a motor insulation material may be coupled to the bottom of the mount plate.

It may additionally include a cover that is placed on the top of the housing and prevents external foreign substances from entering.

It may further include a pressure control unit that protrudes from the upper part of the housing and opens when the pressure inside the housing is above a certain value and closes when the pressure inside the housing is below a certain value to adjust the pressure inside the housing. In addition, the pressure control unit is a water treatment driving device characterized in that it includes a breather cap.

Inside the housing, an additional insert is placed around the output reduction unit, and the insert can prevent heat generated at the bottom of the motor unit and condensation on the bearing.

The insert has a body located around the output reduction unit, and an insert hole may be formed in the body.

According to the means for solving the problems of the present invention as discussed above, various effects including the following can be expected. However, the present invention does not require all of the following effects to be achieved.

The present invention can provide a driving device for water treatment that can block oil leakage.

Additionally, the present invention can provide a driving device for water treatment that can suppress rust by preventing internal condensation.

1 is a diagram illustrating a driving device for water treatment according to a first embodiment of the present invention.
Figure 2 is a perspective cross-sectional view of the driving device for water treatment illustrated in Figure 1.
Figure 3 is a perspective view illustrating a state in which the motor unit and the cover are separated from the water treatment driving device illustrated in Figure 1.
Figure 4 is a perspective view illustrating a state in which the upper cover has been removed from the water treatment driving device illustrated in Figure 1.
Figure 5 is a perspective view illustrating the upper cover of the driving device for water treatment according to the first embodiment of the present invention.
Figure 6 is a perspective view illustrating the motor portion of the driving device for water treatment according to the first embodiment of the present invention.
Figure 7 is a perspective view illustrating an insert of a driving device for water treatment according to the first embodiment of the present invention.

Since the present invention can be modified in various ways and can have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all transformations, equivalents, and substitutes included in the spirit and technical scope of the present invention. In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, identical or corresponding components will be assigned the same reference numbers regardless of the reference numerals, and duplicates thereof will be provided. Any necessary explanation will be omitted.

1 and 2 are a perspective view and a perspective cross-sectional view illustrating a driving device 100 for water treatment according to a first embodiment of the present invention. And FIGS. 3 and 4 are perspective views illustrating a state in which the motor unit 200 and the cover 162 are separated from the water treatment driving device 100 illustrated in FIG. 1, and illustrating a state in which the upper cover 190 is removed. This is a perspective view.

Referring to FIGS. 1 to 4, the water treatment driving device 100 according to the first embodiment consists of a reducer unit 105 and a motor unit 200, and the high-speed rotational force generated from the motor unit 200 is transmitted to the reducer unit. It is reduced to a low speed at (105) and serves to transmit rotational force to the shaft of a stirrer, not shown. The driving device 100 for water treatment according to this embodiment can be used for various purposes and purposes, such as water and sewage treatment, food production, and drug production.

The motor unit 200 is commonly used in a driving device, and can be protected by a motor housing (no reference numeral) surrounding the outside. In the present invention, it is disposed on the upper part of the housing 110 to form the housing 110. The input deceleration unit 120 disposed inside may provide rotational force to rotate. The motor unit 200 may be a general electric motor, but is not limited by the type and driving method of the motor.

The reducer unit 105 with an oil leak blocking structure includes a housing 110, an input reduction unit 120, an output reduction unit 130, a main oil chamber 140, a side sub-oil chamber 150, and an insert 180. Includes.

The housing 110 forms the outer body of the reducer unit 105, and the motor unit 200 is coupled to the outer upper portion. And the inside of the housing 110 is provided with an input reduction unit 120, an output reduction unit 130, a main oil chamber 140, a side sub-oil chamber 150, and an insert 180, and a cover on the outside ( 162) is provided.

The empty space inside the housing 110 corresponds to the main oil chamber 140 filled with oil. And according to the oil leak blocking structure according to the present invention, it can be designed to prevent oil from leaking to the outside of the main oil chamber 140. The oil enables smooth rotation of the input reduction unit 120 and the output reduction unit 130 due to its lubricating effect, and thus allows the reduced rotational force to be transmitted to the shaft (not shown) of the rotor. For example, a rotator may correspond to a device that performs a specific task through rotation, such as a stirrer.

A shaft insertion portion 116 is provided inside the housing 110. The shaft insertion portion 116 corresponds to a hollow cylinder, into which the shaft of the rotary machine is rotatably inserted. Additionally, the bearings 134 of the output reduction unit 130 are provided on the upper and lower sides of the shaft insertion portion 116, respectively. The bearing 134 rotatably supports other parts of the output reduction unit 130. Additionally, a shaft coupling portion 136 is provided on the upper portion of the shaft insertion portion 116. The shaft coupling portion 136 is coupled to the upper part of the shaft and transmits the rotation of the output reduction unit 130 to the shaft.

In one embodiment, the housing 110 may be connected to a separate adapter for coupling to a pre-installed seating base depending on the installation location and purpose. The adapter is formed in a shape corresponding to the portion coupled to the lower portion of the housing 110 and the portion coupled to the upper portion of the seating base, so that changes in shaft length, installation height, etc. can be minimized.

The input deceleration unit 120 may be coupled to the inside of the housing 110 in a cartridge manner and may be connected to the motor unit 200 through the input shaft 206 to receive rotational force from the motor unit 200. Since the input deceleration unit 120 is detachably coupled to a cartridge, it can be detachable and easily replaced in case of failure. For example, the input reduction unit 120 may be mounted on the housing 110 by being slit-fitted from the top of the housing 110 downward.

The input reduction unit 120 may be provided with a first gear 122 corresponding to a pinion gear at the bottom and mesh with a second gear 132 provided at the bottom of the output reduction unit 130. The input deceleration unit 120 can rotate at high speed by receiving rotational force directly from the motor unit 200 and transmit the rotational force to the second gear 132 through the first gear 122.

Since the input reduction unit 120 is placed together with the output reduction unit 130 inside the housing 110, it can be driven in a single oil bath to enable sufficient lubrication and cooling, and the first gear 122 Since the supporting rotating shaft can be eliminated, the durability and oil leakage problems of the bearings required to support the rotating shaft can be solved.

In addition, the input reduction unit 120 is formed with a low center of gravity design so that the first gear 122 and bearings can all be submerged in the oil filled in the main oil chamber 140 inside the housing 110, thereby improving durability and maintenance. Performance can be improved.

The output reduction unit 130 is disposed inside the housing 110, and a second gear 132 that engages with the first gear 122 of the input reduction unit 120 is provided at the bottom to receive rotation, and to receive rotation at high speeds. The rotation can be reduced to low-speed rotation and the low-speed rotation can be transmitted to the rotator (not shown) through the output shaft 208. The second gear 132 is formed to have a larger number of gears than the first gear 122 and rotates at a rotation speed less than the rotation speed of the input reduction unit 120, thereby reducing high-speed rotation to low-speed rotation. .

A fastening block 124 is formed on the upper part of the input deceleration unit 120. The fastening block 124 has a square shape and is disposed at the bottom of the motor unit 200, and can disperse heat generated in the motor unit 200 through holes on the front and both sides.

The output reduction unit 130 is connected to the output shaft 208 at the center, and an insert 180 may be provided on the upper part of the second gear 132.

The main oil chamber 140 corresponds to a space in which oil is injected among the internal spaces of the housing 110. And the main oil chamber 140 is separated from the side sub-oil chamber 150 by an internal partition 112. Additionally, an overflow groove 114 is formed in the internal partition wall 112, through which oil can overflow from the main oil chamber 140 to the side sub-oil chamber 150.

The main oil chamber 140 is in communication with the side sub-oil chamber 150 provided on one side, and as a result, the oil in the inner space of the main oil chamber 140 may overflow into the side sub-oil chamber 150. there is.

The side sub-oil chamber 150 is provided in case the oil volume in the main oil chamber 140 increases due to management problems and exceeds the capacity of the main oil chamber 140. The side sub-oil chamber 150 is disposed near the main oil chamber 140 at the bottom of the motor unit 200 and can store oil that overflows from the main oil chamber 140.

The side sub-oil chamber 150 can prepare for cases where more oil than the specified amount is supplied into the main oil chamber 140 or when the oil volume abnormally increases, and is formed between the main oil chamber 140. It is formed in a structure in which oil overflows from the main oil chamber 140 through the overflow groove 114 of the internal partition wall 112.

On the other hand, due to the nature of most reducers, an extra space is provided at the bottom of the motor unit 200, so the structural safety inside the housing 110 can be increased by placing the side sub-oil chamber 150 in this extra space, and the compact The production cost can be lowered because the appearance is possible.

A cover 162 is provided on the upper part of the housing 110. The cover 162 covers the shaft coupling portion 136 and the shaft (not shown) located outside the housing 110 to prevent foreign substances such as rainwater from entering from the outside. The cover 162 covers the shaft coupling portion 136 and the shaft (not shown). An upper chamber 160 corresponding to a certain space is formed at the upper part.

The cover 162 may be made of a transparent or translucent material so that the operator can inspect the state of the upper chamber 160.

Figure 5 is a perspective view illustrating the upper cover 190 of the driving device 100 for water treatment according to the first embodiment of the present invention.

Referring to FIG. 5, the upper cover 190 covers the open upper part of the housing 110 and may have the same shape as the upper cross-sectional shape of the housing 110. And an input hole 194 and an output hole 196 are formed in the upper cover 190, respectively. The motor unit 200 is coupled to the input deceleration unit 120 inside the housing 110 through the input hole 194. Then, the shaft protrudes out of the housing 110 through the output hole 196 and is coupled to the shaft coupling portion 136.

A cover insulation material 192 may be provided around the output hole 196 on the lower surface of the upper cover 190. The cover insulation material 192 is an insulating material made of plastic resin, etc., and has a size that allows the upper cover 190 to cover as much as possible the inner part in contact with the upper part of the housing 110 and the inner part of the internal partition 112. This cover insulation material 192 can prevent problems such as condensation caused by internal and external temperature differences based on the upper cover 190 and rust caused by condensation.

A pressure control unit 210 may be provided on the upper surface of the upper cover 190. The pressure control unit 210 consists of a pressure control cap 212 and a boss 214, and the boss 214 has a structure that protrudes upward around a hole (no reference numeral) penetrating the upper cover 190. And the pressure control cap 212 is coupled to the inside of the boss 214. The pressure control cap 212 is opened when the pressure inside the housing 110 is above a certain value to allow air to flow into the housing 110. In addition, the pressure control cap 212 is closed when the pressure inside the housing 110 is below a certain value to block the inflow of foreign substances such as air and rainwater into the interior of the housing 110.

The pressure control cap 212 may correspond to a general breather cap. The breather cap may be made of polyamide (PA) material that is resistant to oil filled inside the main oil chamber 140.

Figure 6 is a perspective view illustrating the motor unit 200 of the driving device for water treatment according to the first embodiment of the present invention.

A mount plate 202 is provided at the lower part of the motor 200 to enable the motor unit 200 to be coupled to the upper part of the housing 110. And a motor insulation material 204 is provided on the lower surface of the mount plate 202. The motor insulation material 204 may be made of the same material as the cover insulation material 192. In addition, the motor insulation material 204 prevents condensation caused by internal and external temperature differences based on the mount plate 202, thereby preventing the problem of parts including the mount plate 202 rusting.

Figure 7 is a perspective view illustrating the insert 180 of the driving device 100 for water treatment according to the first embodiment of the present invention.

Referring to Figures 2 and 7, the insert 180 is coupled to the upper part of the second gear 132 of the output reduction unit 130 and rotates with the second gear 132 inside the main oil chamber 140. The amount of oil and the increase in oil volume can be reduced. Additionally, the insert 180 prevents heat generated at the bottom of the motor unit 200 and condensation generated on the shaft of the bearing 134. In other words, the insert 180 prevents the heat generated at the bottom of the motor unit 200 from directly contacting the internal output reduction unit 130 made of metal.

Due to the structure of most reducers, there is a lot of space left inside the housing 110, so more oil than necessary is filled compared to the operating load. As the oil amount increases, the oil volume also increases, so a separate insert is required in the space around the output reduction unit 130. By inserting (180), the amount of oil inside the housing 110 can be reduced, and the amount of oil volume increase can also be reduced.

The insert 180 consists of a body 188 having a hollow cylindrical shape, and an insert upper surface 184 provided at the upper end of the body 188.

The body 188 is located on the outer periphery of the output reduction unit 130 and has a structure in which a plurality of insert holes 182 are formed. And the insert hole 182 is a hole formed in the longitudinal direction of the body 188 and provides a passage through which oil can move outside and inside the body 188. The body 188 of the driving device 100 according to this embodiment is illustrated as having four insert holes 182 formed in the longitudinal direction, but the present invention is based on the number, arrangement spacing, and shape of the insert holes 182. is not limited by

A through hole 186 is formed in the center of the upper surface of the insert 184, and the shaft and the shaft insertion portion 116 can protrude out of the insert 180 through the through hole 186. And a part of the output reduction unit 130 is located at the lower part of the insert upper surface 184.

Although the present invention has been described above with reference to an embodiment of the present invention, those skilled in the art will understand the present invention in various ways without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that it can be modified and changed.

100: driving device
105: Slow donation
110: housing
120: Input deceleration unit
130: Output reduction unit
140: Main oil chamber
150: Side sub-oil chamber
160: Upper chamber
180: insert
190: Top cover
200: Motor part
210: Pressure control unit

Claims (8)

An input reduction unit coupled to the inside of the housing, connected to the motor unit, and having a first gear at the bottom;
an output reduction unit provided with a second gear engaged with the first gear and reducing the rotation transmitted from the input reduction unit and transmitting the rotation to the shaft;
a main oil chamber containing oil as an empty space inside the housing;
a side sub-oil chamber that is separated from the main oil chamber by an internal partition wall, has an overflow groove formed in the internal partition wall, and receives oil overflowing from the main oil chamber through the overflow groove;
Includes an upper cover covering the upper part of the housing,
An insert is disposed inside the housing and outside the output reduction unit, the insert has a body positioned around the output reduction unit, and an insert hole is formed in the body. Device. According to paragraph 1,
A cover insulation material is coupled to the lower surface of the upper cover,
The motor unit has a mount plate for coupling to the housing,
A driving device for water treatment, characterized in that a motor insulation material is coupled to the lower surface of the mount plate. According to paragraph 1,
It further includes a cover disposed on the upper part of the housing to prevent external foreign substances from entering,
A driving device for water treatment, characterized in that an upper chamber is formed by the cover above the input hole formed in the upper cover. According to paragraph 1,
A fastening block is located at the bottom of the motor unit,
The fastening block is a water treatment drive device characterized in that the heat generated in the motor unit is discharged and dispersed through holes on the front and both sides. According to paragraph 1,
A water treatment driving device that protrudes from an upper portion of the housing and further includes a pressure control unit that opens when the pressure inside the housing is above a certain value and closes when the pressure inside the housing is below a certain value to adjust the pressure inside the housing. According to clause 5,
A driving device for water treatment, wherein the pressure control unit includes a breather cap. According to paragraph 1,
A bearing is disposed inside the insert,
The insert is a drive device for water treatment, characterized in that the heat generated at the bottom of the motor unit does not directly contact the output reduction unit made of metal. delete