KR101541924B1 - Power transmission device of water pump - Google Patents

Power transmission device of water pump Download PDF

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Publication number
KR101541924B1
KR101541924B1 KR1020090039460A KR20090039460A KR101541924B1 KR 101541924 B1 KR101541924 B1 KR 101541924B1 KR 1020090039460 A KR1020090039460 A KR 1020090039460A KR 20090039460 A KR20090039460 A KR 20090039460A KR 101541924 B1 KR101541924 B1 KR 101541924B1
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KR
South Korea
Prior art keywords
interlocking
pulley
disk
field coil
engine
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KR1020090039460A
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Korean (ko)
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KR20100120583A (en
Inventor
정석제
오성택
공성규
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한온시스템 주식회사
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Priority to KR1020090039460A priority Critical patent/KR101541924B1/en
Publication of KR20100120583A publication Critical patent/KR20100120583A/en
Application granted granted Critical
Publication of KR101541924B1 publication Critical patent/KR101541924B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
    • F01P7/048—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using electrical drives

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention is a power transmission device for a water pump, wherein a pulley mounting part (112) is protruded on one side of a housing (110) of a water pump, and a field coil (130) is installed thereon. The field coil 130 generates a attracting magnetic flux by application of power. A pulley 134 is rotatably mounted on the field coil 130 provided on the pulley mounting portion 112 by a pulley bearing 132. An impeller 119 is installed at one end of the housing 110 corresponding to the inside of the housing 110. The impeller 119 is mounted on the rotating shaft 116 through the shaft hole 114 of the pulley mounting portion 112. [ An interlocking disk 122 is integrally formed at one end of the rotation shaft 116 and is integrally rotated with the rotation shaft 116 and is provided with an interlocking protrusion 126. The interlocking protrusion 126 is connected to the pulley 134 And a plurality of pulley connecting members 140 are installed along the movement locus of the interlocking protrusion 126. [ The interlocking protrusion 126 is moved by the resilient member 128 in the direction of the pulley connecting member 140 so that the interlocking protrusion 126 is inserted into the interlocking through hole 150, And the pulley connecting member 140 rotate together. The field coil 130 moves the interlocking protrusion 126 of the interlocking disc 122 in a direction separating from the pulley connecting member 140.

Water pump, power, transmission, intermittent

Description

Technical Field [0001] The present invention relates to a power transmission device for a water pump,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water pump, and more particularly, to a power transmission for a water pump that selectively transmits a driving force of an engine in a vehicle for driving a water pump.

A water pump used in a vehicle pressurizes and transfers cooling water to the engine so that the cooling water circulates inside the engine and releases heat generated by the engine. Such a water pump is driven by receiving the driving force of the engine like a compressor of an air conditioner. In particular, the water pump is driven by receiving the driving force of the engine without interruption. Therefore, when the engine is driven, the cooling water is always supplied to the engine while being operated together.

Fig. 1 is a cross-sectional view of a main part of a power transmission device for a water pump according to the prior art. According to this, the through hole 12 is formed through one side of the housing 10 forming the outer pipe and the skeleton of the water pump. For reference, only a part of the housing 10 is shown in the drawing.

A through hole (12) is provided with a bearing (14). A drive shaft (16) is provided through the bearing (14). The drive shaft (16) is rotatably supported by the bearing (14). An impeller 18 is installed at one end of the drive shaft 16, that is, at an end of the drive shaft 16 extending to the inside of the housing 10. The impeller 18 is positioned inside the housing 10 and rotates together with the driving shaft 16 to stir and pressurize the cooling water. That is, as shown by an arrow in Fig. 1, it serves to send the cooling water from the radiator to the water jacket of the engine.

A seal 19 is provided to prevent the cooling water from leaking through the through hole 12 in which the drive shaft 16 is installed. The seal 19 is positioned between the inner surface of the through hole 12 and the outer surface of the drive shaft 16. The seal 19 is made of an elastic material.

A hub 20 is installed at one end portion of the drive shaft 16 protruding outward from the housing 10, that is, at an opposite end portion where the impeller 18 is provided. The hub 20 includes a shaft coupling portion 22 to which the drive shaft 16 is inserted and a pulley coupling portion 24 that is formed by extending an edge of the shaft coupling portion 22 in a centrifugal direction . The shaft coupling portion 22 is formed in a substantially cylindrical shape and has an inner diameter smaller than the outer diameter of the drive shaft 16 so that the drive shaft 16 is press-fitted into the shaft coupling portion 22.

The pulley engaging portion 24 is a portion where the pulley 26 to be described below is fastened. A plurality of bolts 24 'are provided through the pulley engaging portion 24 to engage the pulley 26 and the hub 20 described below.

The pulley 26 is rotated by the driving force of the engine. The pulley 26 has a belt hooking portion 28 formed around its outer circumferential surface. A belt (not shown) is wrapped around the belt hooking portion 28.

The power transmission device for a water pump according to the prior art having such a configuration is operated as follows.

When the engine of the vehicle is driven, the driving force of the engine is transmitted to the pulley 26 via a belt hooked to the belt hooking portion 28 of the pulley 26 on one side. When the pulley 26 is rotated by the driving force of the engine, the rotational force of the pulley 26 is transmitted to the hub 20.

The driving force transmitted to the hub 20 is transmitted to a driving shaft 16 having one end connected to the shaft coupling portion 22 of the hub 20. Therefore, the driving shaft 16 is rotated by the driving force of the engine. When the drive shaft 16 rotates, the impeller 18 provided at one end of the drive shaft 16 rotates.

As the impeller 18 rotates, the impeller 18 pressurizes the cooling water in the housing 10 and transfers the cooling water to the engine. The cooling water flows through the engine and receives heat generated by the engine, .

However, the conventional power transmission device for a water pump has the following problems.

In the conventional power transmission device for a water pump, the belt-engaged pulley 26 operated by the engine is directly connected to the hub 20 provided on the drive shaft 16, so that the driving force of the engine is transmitted to the drive shaft 16).

When the driving force of the engine is transmitted to the driving shaft 16 without interruption, the driving shaft 16 is always driven together when the engine is operated. That is, when the engine is driven, the water pump is operated simultaneously and supplies the cooling water to the engine.

However, when cooling water is supplied to the engine at the initial stage of driving the engine, it takes a long time to warm up the engine. That is, since the cooling water is supplied to the engine at the same time as the engine is driven, and the heat-radiating function is performed, the warm-up time of the engine becomes relatively longer.

When the warm-up time is increased as described above, the emission amount of carbon dioxide due to incomplete combustion increases, thereby causing environmental problems.

In addition, when the warm-up time is increased, fuel consumption is increased, fuel economy is deteriorated, and the vehicle maintenance cost is further increased.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to enable the water pump to selectively receive the power of the engine.

Another object of the present invention is to allow the power of the engine to be transmitted to the water pump when the power for driving the field coil is cut off.

According to an aspect of the present invention for achieving the above-mentioned object, the present invention provides a pulley mounting structure including a pulley mounting part protruding from one side of a housing and having a shaft support hole formed therethrough, A pulley which is rotatably supported by the driving force of the engine and which is rotated by the driving force of the engine and a rotating shaft which is installed through the shaft hole of the pulley mounting part and has an impeller for flowing cooling water at one end corresponding to the inside of the housing, A power transmission device for a pump, comprising: a field coil installed between an outer surface of the pulley mounting portion and the pulley and generating a attracting magnetic flux by application of a power supply; a field coil provided at one end of the rotating shaft, An interlocking disc provided on the pulley, And a pulley connecting member in which a plurality of interlocking portions are formed along the movement locus of the interlocking projecting portion, the interlocking projecting portion receiving a force of movement of the interlocking projecting portion in the direction of the pulley connecting member by the elastic member, So that the interlocking disc and the pulley connecting member can rotate together, and the field coil is moved in a direction separating the interlocking protrusion of the interlocking disc from the pulley connecting member by application of power.

The interlocking disk is provided at a small diameter portion formed at the tip of the rotation shaft. A spline is formed in the longitudinal direction of the rotation shaft at the small diameter portion so that the splines formed inside the connection hub of the interlocking disk are guided and moved.

Wherein the interlocking protrusion is provided on the interlocking protrusion, and the interlocking protrusion is interposed between the interlocking protrusion and the interlocking disc, and the interlocking protrusion is interposed between the interlocking protrusion and the interlocking disc, And exerts an elastic force to move.

The interlocking portion is an interlocking through portion formed through the interlocking disk along a movement locus of the interlocking projection.

According to the power transmission device for a water pump of the present invention having the above-described configuration, the following effects can be obtained.

First, in the present invention, the pulley connecting member provided on the pulley and the interlocking disk provided on the rotating shaft are selectively coupled or separated by the elastic member and the field coil, and the driving force of the engine transferred to the pulley can be selectively transmitted to the water pump through the rotating shaft . Therefore, the driving force of the engine can be interrupted as required by the water pump, so that the warm-up time of the engine can be minimized, so that the generation of carbon dioxide by incomplete combustion can be minimized, thereby minimizing environmental problems.

Further, in the present invention, since the interlocking protrusion of the interlocking disk is designed to be coupled to the pulley connecting member by the elastic member when no power is applied to the field coil, when power is not supplied to the power transmitting device due to unexpected failure The driving force of the engine can always be transmitted to the water pump, so that the problem of overheating of the engine can be prevented.

Further, in the present invention, since the field coil is installed in the pulley mounting portion of the housing, the size of the field coil can be reduced and the manufacturing cost can be relatively reduced.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a power transmission apparatus for a water pump according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a sectional view of a preferred embodiment of a power transmission apparatus for a water pump according to the present invention, and FIG. 3 is a front view of the structure of a pulley connecting member constituting an embodiment of the present invention.

According to these drawings, the housing 110 forms an outer appearance of the water pump. In the drawing, only a part of the housing 110 is shown for the sake of convenience. A pulley mounting portion 112 is formed to protrude from one side of the outer surface of the housing 110. The pulley mounting portion 112 is a portion in which a pulley 134 to be described below is rotatably installed.

A shaft hole 114 is formed through the center of the pulley mounting portion 112 formed in the housing 110. A rotation shaft 116 is rotatably mounted on the shaft support 114. The rotating shaft 116 is installed through the shaft hole 114 of the pulley mounting portion 112. A shaft bearing 118 is installed between the inner surface of the shaft hole 114 and the outer surface of the rotation shaft 116. However, the shaft bearing 118 is not necessarily used, and the rotating shaft 116 may be directly supported on the inner surface of the supporting shaft hole 114.

An impeller 119 is installed at an end portion of the end portion of the rotating shaft 116 that extends to the inside of the housing 110. In the drawing, the impeller 119 schematically shows the shape of the impeller 119. In reality, the shape of the impeller 119 is such that it can pressurize and cool the cooling water. Reference numeral 116 'denotes a seal. The seal 116 'prevents leakage of cooling water through the gap between the shaft hole 114 and the rotation shaft 116. [ The seal 116 'is made of an elastic material.

A small diameter portion 120 having a relatively small diameter is formed at an end portion of the end portion of the rotation shaft 116 that extends to the outside of the housing 110. On the surface of the small diameter portion 120, a spline 120 'is formed to be long in the longitudinal direction of the rotating shaft 116. The outer surface of the small diameter portion 120 may be made of a material different from that of the rotation shaft 116. That is, the small diameter portion 120 is provided with a cylindrical member, and the spline 120 'is formed in a cylindrical member.

The small diameter part 120 is provided with an interlocking disk 122. The interlocking disk 122 is made of a metal material attractable to a magnetic force. Of course, the entire interlocking disk 122 need not necessarily be made of a metal material, but may be made of a metal material that can be dragged by magnetic force only at a portion of the interlocking protrusion 126, which will be described below.

The interlocking disk 122 is moved along the longitudinal direction of the rotation shaft 116 and is rotated together with the rotation shaft 116. To this end, the interlocking disk 122 is provided with a connection hub 124. The connection hub 124 is formed on the inner surface of the connection hub 124 and is fitted to the small diameter portion 120. The spline 120 is formed with a spline 120 'formed on the small diameter portion 120 of the rotation shaft 116. Accordingly, the connection hub 124 is rotatable with the rotation axis 116 and is movable along the spline 120 '. The coupling hub 124 may be integrally formed with the interlocking disk 122, or may be separately formed and integrally coupled.

An interlocking protrusion 126 protrudes from one edge of the interlocking disc 122. A plurality of the interlocking protrusions 126 may be provided on the interlocking disc 122. The number of the interlocking protrusions 126 corresponds to the number of the interlocking perforations 150 of the pulley connecting member 140 to be described below. In this embodiment, three interlocking protrusions 126 are used. The interlocking protrusion 126 allows the interlocking disc 122 to be selectively engaged with the pulley connecting member 140, which will be described below. Although the interlocking protrusion 126 is shown as being integrated with the interlocking disc 122 in the present embodiment, the interlocking protrusion 126 may be formed separately. The interlocking protrusion 126 may be made of a metal material that can be attracted by the attracting magnetic flux of the field coil 130, which will be described below.

The interlocking disk 122 is always supported by an elastic member 128 to receive a force to move in the direction of the pulley connecting member 140. The elastic member 128 is positioned between the end of the small diameter portion 120 of the rotation shaft 116 and the connection hub 124 of the interlocking disk 122 to exert an elastic force. A coil spring may be used as the elastic member 128, but various other springs may be used.

A stopper 129 is provided at the distal end of the small diameter portion 120 to prevent the interlocking disk 122 from being detached from the small diameter portion 120. The stopper 129 is ring-shaped and can be press-fitted or screwed into the distal end of the small-diameter portion 120.

A field coil 130 is installed on the outer surface of the pulley mounting portion 112. The field coil 130 is entirely formed of a cylindrical assembly. Actually, a housing (not shown) is formed on the outer surface of the field coil 130, and a coil is wound inside the housing.

A pulley bearing 132 is installed to surround the field coil 130 and a pulley 134 is rotatably supported on the pulley bearing 132. The pulley 134 receives a drive force of the engine through a belt, and is formed in a disc shape having a through hole at the center thereof. A belt hooking portion 132 is formed to surround the outer peripheral edge of the pulley 134. A belt is hooked on the belt hook 132.

A pulley connecting member 140 is fixed to one surface of the pulley 134 by bolts 138. The pulley connecting member 140 is not necessarily fixed to the pulley 134 by the bolts 138, and various fastening means can be used.

3, the pulley connecting member 140 is formed in a substantially flat cylindrical shape and is provided with a fastening flange 142 that surrounds the pulley and is attached to the pulley 134. [ The coupling flange 142 is formed to have a predetermined width around the edge of the pulley connecting member 140. A plurality of bolt holes 144 are formed in the fastening flange 142. The bolt 138 is passed through the bolt hole 144 and is fastened to the pulley 134.

The pulley connecting member 140 is provided with a disc-shaped center plate 146, through which a central through hole 148 is drilled. The central through hole 148 is formed at a position substantially corresponding to the tip of the rotation shaft 116. The center plate 146 and the fastening flange 142 are formed to have a predetermined height difference from each other to form a predetermined space between one surface of the pulley 134 and the center plate 146 of the pulley connecting member 140 .

The center plate 146 is also provided with a plurality of interlocking parts 150. The interlocking part 150 is a part where the interlocking protrusion 126 is engaged with the pulley connecting member 140 and the interlocking disk 122 so that the interlocking part 140 and the interlocking disk 122 are integrally coupled. In the present embodiment, a plurality of holes are formed through the central plate 146 of the pulley connecting member 140, so that the through hole 150 is referred to as an interlocking through hole 150 in the following description of the embodiment. It is needless to say that the interlocking portion is not necessarily formed only through the center plate 126 like the interlocking through portion 150 of the present embodiment.

The interlocking through portion 150 is a portion through which the interlocking protrusion 126 selectively passes. The interlocking penetrating part 150 has a circular shape having a radius of curvature equal to a circle formed by the movement locus formed by the interlocking protrusion 126 in accordance with the rotation of the interlocking disk 122. A plurality of the interlocking through portions 150 are formed at regular intervals. The perforated perforation 150 is formed at a position relatively close to the central through hole 148 of the center plate 146 in the present invention.

The length of the interlocking through portion 150 may be as long as possible so that the interlocking protrusion 126 can be quickly inserted into the interlocking through portion 150. In consideration of the strength of the center plate 146, The length is formed.

On the other hand, Fig. 5 shows another embodiment of the present invention. Here, for the sake of convenience, numerical reference numerals having 200 units are assigned to the corresponding constituent elements as compared with those in Fig. 2, and only the parts different in configuration will be described.

In this embodiment, the interlocking disk 222 is fixed to the rotation shaft 216. That is, the interlocking disk 222 can not be moved in the longitudinal direction of the rotary shaft 216 and is fixed. The interlocking protrusion 226 is moved in cooperation with the elastic force of the elastic member 228 as the field coil 230 is energized or removed. The interlocking protrusion 226 is installed through the interlocking disc 222 and is movable through the interlocking disc 222 by a predetermined distance.

Therefore, the elastic member 228 provides an elastic restoring force directly to the interlocking protrusion 226. The elastic member 228 is positioned between the head 227 of the interlocking protrusion 226 and one surface of the interlocking disc 222 in this embodiment. The head portion 227 is made relatively large in diameter as compared with other portions of the interlocking projection 226. Each of the ends of the elastic member 228 is fixed to one surface of the interlocking disk 222 and the head 227. The elastic member 228 is fixed to the pulley connecting member 240 by the interlocking protrusion 226, Lt; / RTI > direction. The head portion 227 of the interlocking protrusion 226 should be made of a material that can be attracted by the attracting magnetic flux of the field coil 230. In this embodiment,

When power is applied to the field coil 230, the interlocking disc 222 is fixed in the present embodiment, and the interlocking protrusion 226 overcomes the elastic force of the elastic member 228, And moves in the direction of the field coil 230 with respect to the coil 222.

Hereinafter, the operation of the power transmission device for a water pump according to the present invention will be described in detail.

When the vehicle is started and the engine is driven, the power of the engine is transmitted to the pulley 134 via the belt. However, as shown in FIG. 4, when the pulley connecting member 140 and the interlocking disk 122 are not coupled to each other, the pulley 134 rotates alone.

That is, at this time, power is applied to the field coil 130. When power is applied to the field coil 130, the field coil 130 generates a magnetic attraction flux to move the interlocking disk 122 in the direction of the pulley 134. That is, since the attraction flux acts on the interlocking disc 122, the interlocking disc 122 is moved in the direction of the pulley 134 while overcoming the elastic force of the elastic member 128. At this time, the connection hub 124 of the interlocking disk 122 is moved along the spline 120 'of the small diameter portion 120. The movement of the interlocking disk 122 is performed until the interlocking disk 122 is brought into close contact with the field coil 130. However, the interlocking disk 122 does not necessarily have to be in close contact with the field coil 130. When the interlocking disk 122 is not in close contact with the field coil 130, the movement of the interlocking disk 122 can be stopped because the elastic member 128 can no longer be compressed.

When the interlocking disc 122 is moved in the direction of the pulley 134, the interlocking protrusion 126 of the interlocking disc 122 is pulled out of the interlocking through hole 150 of the pulley connecting member 140 do. Therefore, the interlocking disk 122 and the pulley connecting member 140 do not rotate together.

Meanwhile, when the impeller 119 is driven to supply cooling water to the engine, the power applied to the field coil 130 is removed. When the power applied to the field coil 130 is removed, the field coil 130 does not generate the attracting magnetic flux any more.

Therefore, the interlocking disk 122 is no longer drawn in the direction of the field coil 130, and the restoring force of the elastic member 128 causes the interlocking disk 122 to move along the small diameter portion 120 . The coupling disk 124 moves in the direction of the pulley connecting member 140 by moving along the spline 120 'of the small diameter portion 120.

When the interlocking disc 122 is moved toward the pulley connecting member 140, the interlocking protrusion 126 enters the interlocking through hole 150. Of course, the interlocking protrusion 126 may not enter the interlocking through-hole 150 and the distal end of the interlocking protrusion 126 may contact the center plate 146 between the interlocking through-holes 150. However, The resilient member 128 is resiliently deformed by the resilient member 128 and the resilient member 128 is elastically deformed. When the resilient member 128 meets the interlocking through-hole 150, the interlocking through- Of the elastic member 128. In this case,

When the interlocking protrusion 126 is inserted into the interlocking through hole 150 and the interlocking protrusion 126 is hooked to one end of the interlocking through hole 150, the coupling member 140 and the interlocking disc 122 Are rotated together by the rotation of the pulley 134. [

The rotational force of the pulley 134 is transmitted to the rotating shaft 116 through the pulley connecting member 140 and the interlocking disk 122. In this case, when the interlocking disk 122 is coupled to the pulley connecting member 140, .

The coupling disk 124 is coupled to the coupling disk 122 by a spline 120 'formed on the outer surface of the small diameter portion 120 of the rotation shaft 116 so that the rotation of the coupling disk 122 And the coupling between the interlocking protrusion 126 of the interlocking disc 122 and the interlocking through portion 150 of the pulley connecting member 140 while being transmitted to the rotary shaft 116 and moving along the spline 120 ' Produces separation.

The rotation of the rotation shaft 116 operates the impeller 119 and the operation of the impeller 119 stirs the cooling water to transfer the cooling water to the engine. In this case, the cooling water is transferred to the engine to cool the heat generated by the engine.

When the heat of the engine is cooled to some extent by the cooling water transferred as described above and the cooling is no longer necessary, the field coil 130 may be powered again. 4 so that the rotation of the pulley 134 is not transmitted to the rotary shaft 116 through the pulley connecting member 140 and the interlocking disk 122. In other words,

In the present invention, when power is applied to the field coil 130, the rotational force of the pulley 134 is not transmitted to the rotating shaft 116. When power is not applied to the field coil 130, So that the rotational force is transmitted to the rotating shaft 116. In this manner, even when a failure occurs in the device for applying power to the field coil 130, the problem of cooling the engine is prevented.

That is, when a device for applying power to the field coil 130 fails, power is not applied to the field coil 130, and the interlocking disk 122 is rotated by the restoring force of the elastic member 128 The pulley connecting member 140 moves in the direction of the pulley connecting member 140 and the pulley connecting member 140 and the interlocking disk 122 are coupled to each other as shown in FIG.

In this state, the rotating shaft 116 can always receive the driving force of the engine through the pulley 134, thereby preventing the engine from being overheated. For reference, the failure of the device for applying power to the field coil 130 can be detected quickly by using a separate sensing device.

5, the interlocking disc 222 is integrated with the rotation shaft 216, and only the interlocking protrusion 226 is interlocked with the field coil 230 by the interaction between the elastic member 228 and the field coil 230. In other words, And moves into and out of the interlocking through portion 250 which is the interlocking portion 250 of the pulley connecting member 240 while being moved relative to the disk 222 to control the coupling and disconnection between the pulley connecting member 240 and the interlocking disk 222 .

The head 227 of the interlocking protrusion 226 is brought into close contact with the outer surface of the field coil 230 when a magnetic field is generated in the field coil 230. The coupling between the interlocking disk 222 and the pulley connecting member 240 is released so that the rotation of the rotation shaft 216 is released, The rotation is not performed. Such a state is shown in Fig.

It is to be understood that the scope of the present invention is defined by the appended claims rather than by the foregoing description and that various changes and modifications may be made without departing from the scope of the invention as defined by the appended claims. It is obvious that it can be done.

1 is a sectional view showing a configuration of a power transmission device for a water pump according to a related art;

2 is a cross-sectional view showing a configuration of a preferred embodiment of a power transmission device for a water pump according to the present invention.

3 is a front view showing a configuration of a pulley connecting member constituting an embodiment of the present invention.

4 is an operational state view showing that the power transmission device of the embodiment of the present invention is operated.

5 is a cross-sectional view showing a configuration of another embodiment of the present invention.

6 is an operational state diagram showing operation of another embodiment of the present invention.

Description of the Related Art [0002]

110: housing 112: pulley mounting part

114: axle shaft 116: rotating shaft

118: Axial bearing 119: Impeller

120: small diameter portion 120 ': spline

122: interlocking disk 124: connecting hub

126: interlocking protrusion 128: elastic member

130: field coil 132: pulley bearing

134: pulley 136: belt hook part

138: bolt 140: pulley connecting member

142: fastening flange 144: bolt hole

146: central plate 150: interlocking through portion

Claims (4)

Pulley mounting portions 112 and 212 protruding from one side of the housings 110 and 210 and penetrating the inside of the housings 110 and 210 to form shaft holes 114 and 214, Pulleys 134 and 234 rotatably supported by the pulley mounting portions 112 and 212 by pulley bearings 132 and 232 and rotated by the driving force of the engine, And rotation shafts 116 and 216 provided through the shaft holes 114 and 214 of the pulley mounting portions 112 and 212 and provided with impellers 119 and 219 for flowing cooling water at one end corresponding to the inside of the housings 110 and 210 A power transmission device for a water pump, Field coils 130 and 230 installed between the outer surfaces of the pulley mounting portions 112 and 212 and the pulleys 134 and 234 and generating a magnetic flux attracted by application of power, Interlocking discs 122 and 222 provided at one ends of the rotating shafts 116 and 216 and integrally rotated with the rotating shafts 116 and 216 and protruding from the interlocking protrusions 126 and 226, And pulley connecting members 140 and 240 which are provided in the pulleys 134 and 234 and in which a plurality of interlocking portions 150 and 250 for selectively interlocking the interlocking protrusions 126 and 226 are formed along movement trajectories of the interlocking protrusions 126 and 226, Respectively, The interlocking protrusions 126 and 226 are moved by the elastic members 128 and 228 in the direction of the pulley connecting members 140 and 240 so that the interlocking protrusions 126 and 226 are coupled to the interlocking parts 150 and 250, The pulley connecting members 140 and 240 can be rotated together, Wherein the field coils 130 and 230 are moved in a direction separating the interlocking protrusions 126 and 226 of the interlocking discs 122 and 222 from the pulley connecting members 140 and 240 by application of power. . The coupling disk (120) according to claim 1, wherein the interlocking disk (122) is provided on a small diameter part (120) formed at the tip of the rotation shaft (116) And the splines formed in the coupling hub 124 of the interlocking disk 122 are guided and moved together with each other. 2. The apparatus according to claim 1, wherein the interlocking disc is fixed to a front end of the rotating shaft, the interlocking protrusion is inserted into the interlocking disc, And the elastic member (228) exerts an elastic force between the interlocking disc (222) and the interlocking disc (222) so that the interlocking protrusion (226) moves in the direction of the pulley connecting member (240). The water treatment system according to any one of claims 1 to 3, wherein the interlocking part (150, 250) is an interlocking through part formed through the interlocking disk (122, 222) along a movement locus of the interlocking projection part (126, 226) Power transmission for pumps.
KR1020090039460A 2009-05-06 2009-05-06 Power transmission device of water pump KR101541924B1 (en)

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KR1020090039460A KR101541924B1 (en) 2009-05-06 2009-05-06 Power transmission device of water pump

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Application Number Priority Date Filing Date Title
KR1020090039460A KR101541924B1 (en) 2009-05-06 2009-05-06 Power transmission device of water pump

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KR20100120583A KR20100120583A (en) 2010-11-16
KR101541924B1 true KR101541924B1 (en) 2015-08-04

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008014435A (en) 2006-07-07 2008-01-24 Calsonic Compressor Inc Gas compressor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008014435A (en) 2006-07-07 2008-01-24 Calsonic Compressor Inc Gas compressor

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