KR100804301B1 - Combination structure of gear and shaft used in moving part of water softener - Google Patents

Abstract

A joining structure of a gear and a shaft in a water purifier is provided to prevent the run-out of a rotating gear and transfer a rotation force accurately, by inserting a shaft member into the gear member so as to keep a perpendicular relation between the gear member and the shaft member. A rotary valve controls a water passage of a water purifier. A gear member(30) includes a gear part(31) for regulating the rotation amount of the rotary valve, and a shaft insertion part(33) having an angulated insertion hole(34) therein. The shaft insertion part is disposed in the center of the gear part in one body, perpendicularly to the gear part. A shaft member has one end consisting of an insertion part having the same shape as the insertion hole so that the shaft member is inserted into the insertion hole of the gear member, and the other end connected to the rotary valve so as to transfer a rotary force of the gear member. A joining unit joins the gear member and the shaft member to each other. Further, a notch groove is formed at one side of the angulated insertion hole in order to notice a connection position of the shaft member.

Description

Combination Structure of Gear and Shaft Used in Moving Part of Water Softener}

1 is an explanatory diagram for explaining the structure of a water softener and a typical water softening action;

Figure 2 is an exploded perspective view for showing a coupling structure of a conventional gear and shaft,

Figure 3a is a cross-sectional view showing a coupling structure of a conventional gear and shaft,

Figure 3b is an explanatory diagram for showing a problem in the conventional coupling structure of the gear and the shaft,

4A is an exploded perspective view for showing a coupling relationship between a gear member and a shaft member according to the present invention;

Figure 4b is a perspective view for showing the main configuration of the gear member according to the present invention,

5 and 6 are a cross-sectional perspective view and a cross-sectional view showing a state in which the coupling structure of the gear and the shaft according to the present invention is applied to the drive portion of the water softener.

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

30: gear member 31: gear part

33: shaft insertion portion 34: insertion groove

34a: curved portion 35: slit portion

35a: Slit groove 36: Notch groove

40 shaft member 44 insertion part

46: notch protrusion 50: coupling means

The present invention relates to a coupling structure of a gear and a shaft, and more particularly, a separate shaft inserting portion is provided in a gear so that the gear and shaft can be coupled while maintaining a vertical relationship at all times. The present invention relates to a coupling structure of a gear and a shaft used in a drive unit of a water softener which is inserted in a vertical direction.

In general, gears and shafts are widely used as a mechanical element for transmitting power by being applied to driving parts of various devices, for example, gears and shafts are applied to water softeners to transfer power.

 Before explaining the coupling structure of the gear and the shaft applied to the water softener, the water softener will be described as follows.

1 is an explanatory diagram for explaining the structure of a water softener and a conventional water softening action.

Tap water supplied to each household through a water pipe (hereinafter referred to as “raw water”) is introduced into the ion resin tank 2 in which the ion resin R is stored through the raw water supply pipe 1, and the raw water is supplied to the ion. Passing through the resin tank (2) is converted into soft water through the ion exchange (R) and the ion exchange action, this soft water is discharged back to the faucet (4) installed in each home through the soft water pipe (3).

For reference, the principle that the raw water is trained in the ion resin tank (2) is that the raw water passes through the ion resin tank (2) containing the Na (+) type strong acid cation exchange resin, which is a hardness component contained in Ca ( Soft water is created by exchanging +2) and Mg (+2) ions with Na (+) ions in the ion resin.

In addition, the ion resin R adsorbs impurities contained in the raw water in the course of passing the raw water through the ion resin R. Thus, when the water softener is used for a long time, the impurity adsorption performance of the ion resin decreases. It is necessary to regenerate the salt water into the ion resin tank at regular intervals so that the impurities adsorbed on the ion resin by the brine are eliminated.

In addition, raw water may be converted into soft water through the ion resin tank 2, but in the case of cleaning, raw water may be used as it is, so that raw water is discharged as it is without passing through the ion resin tank 2. There is also.

Therefore, the water softener is supplied with the soft water flow passage through which the raw water passing through the water pipe is passed through the ion resin tank 2, and the raw water flow path through which the raw water is discharged out of the ion resin tank and out of the ion resin tank, thereby regenerating the ion resin. It is divided into a regeneration flow path for the purpose.

In order to control each of these flow paths, a rotary valve is used in the water softener, and the gear and shaft as described above are used as a mechanical element for driving the rotary valve.

Figure 2 is an exploded perspective view showing a conventional coupling structure of the gear and the shaft, Figure 3a is a cross-sectional view showing a coupling structure of the conventional gear and shaft, Figure 3b is an explanatory view for showing a problem in the conventional coupling structure of the gear and shaft. to be.

First, the prior art will be described with reference to FIGS. 2 and 3A.

Conventionally, a gear 10 having a predetermined number of teeth 11 is provided on an outer circumferential surface of a disc having a predetermined diameter, and a coupling hole having a moment portion 12a at the center of the gear 10 to transmit a rotational force. (12) is formed.

One end of the shaft 20 having the same shape as that of the coupling hole 12 is inserted into the coupling hole 12 of the gear, and the gear 10 and the shaft 20 may be coupled to each other without being separated. Coupling the gear 10 to the shaft 20 by a forced press method or using a separate coupling means 25 as shown in FIG. 2 so that the gear 10 and the shaft 20 do not separate from each other. do.

The coupling means 25 is the same as a conventional bolting or screwing arrangement, and provides a coupling tool having a head portion 25a larger than the coupling hole 12 of the gear, so that the head portion 25a of the coupling tool is provided. The gear 10 and the shaft 20 are more securely coupled by being fastened to the shaft 20 while supporting one side of the gear.

When the gear 10 and the shaft 20 are normally coupled as shown in FIG. 3A, the gear 10 and the shaft 20 are perpendicular to each other, but the gear 10 and the shaft 20 are normally coupled to each other. In the case where the gear 10 is perpendicular to each other, if the gear is continuously subjected to side pressure in the process of being used for a long time, the gear 10 may be inclined with respect to the shaft 20 as shown in FIG. 3B.

This is because the stepped portion 21 of the shaft 20 supporting the gear 10 is worn by continuous side pressure applied to the gear 10. When the stepped portion 21 is worn, the rotating gear ( 10) A run-out occurs and the rotational inertia is broken, resulting in an unstable state.

In particular, a gear that rotates at a high speed may be a factor of vibration generation, and above all, a serious problem may occur in that the rotational force cannot be properly transmitted due to the run out of the gear.

The present invention has been proposed to solve the above problems, the object of which is to keep the gears and shafts always in the vertical relationship in order to prevent runout of the rotating gears and to ensure that the rotational force can be properly transmitted To provide a combined structure of.

The present invention for achieving the above object, a rotary valve for controlling the water softener flow path;
A gear member for controlling an amount of rotation of the rotary valve, and a shaft insertion part integrally formed with the gear part and integrally formed at the center of the gear part and having a rectangular insertion groove therein;
A shaft member having one end inserted into the insertion groove so as to be inserted into the insertion groove, the shaft member being connected to the rotary valve so that the other end transmits the rotational force of the gear member; And
It provides a coupling structure of the gear and the shaft used in the drive portion of the water softener comprising a; coupling means for coupling the gear member and the shaft member mutually.

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In addition, the insertion groove of the gear member has a quadrangular shape as a whole, characterized in that the two sides facing each other is formed with a curved convex outwardly.

In addition, the insertion groove has a predetermined inclined surface whose cross section decreases from the outer portion to the inner portion from which the shaft member starts to be inserted, and the inclined surface of the insertion member of the shaft member is the same inclined surface as the inclined surface of the insertion groove to be seated in the insertion groove. Characterized in that formed.

In addition, any one side of the gear portion is characterized in that the slit portion having one or more slit grooves so that the rotation angle of the gear portion can be measured.

In addition, any one side of the shaft insertion portion is provided with a notch groove to determine the coupling position of the shaft member, characterized in that the insertion portion is provided with a notch projection that can be fitted to the notch groove.

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

Figure 4a is an exploded perspective view for showing a coupling relationship between the gear member and the shaft member according to the present invention, Figure 4b is a perspective view for showing the main configuration of the gear member according to the present invention, Figures 5 and 6 according to the present invention A cross-sectional perspective view and a cross-sectional view showing a state in which a coupling structure of a gear and a shaft is applied to a driving part of a water softener.

First, the gear member 30 and the shaft member 40 coupled to the gear member, which are main components of the present invention, will be described with reference to FIGS. 4A and 4B.

The gear member 30 is provided with a gear part 31 and a shaft insertion part 33 largely, and the gear part 31 is formed in a disc shape having an overall appearance with a predetermined thickness so as to have a predetermined diameter. The outer peripheral surface is provided with a predetermined number of teeth 31a are continuously formed to mesh with other gears to transmit or receive power.

In addition, the shaft insertion portion 33 is integrally formed at the center of rotation of the gear portion 31 to be perpendicular to the gear portion 31, as shown in Figure 4b well in the shaft insertion portion 33. As described above, an insertion groove 34 for inserting the shaft member 40 is provided.

The insertion groove 34 should be a structure in which slip does not occur in relation to the shaft member 40 in order to receive power from the shaft member 40 or vice versa, and has a square shape to easily transmit rotational force. It is preferable to make.

The square insertion groove 34 may have various shapes, but in the present invention, the insertion groove 34 is configured to have a generally rectangular shape, that is, a rectangle or a square shape, and then convex outwardly on either side facing each other. The curved portion 34a was formed.

On the other hand, the insertion portion having the same shape as the insertion groove 34 on one end of the shaft member 40 so that the shaft member 40 is inserted into the insertion groove 34 of the gear member 30 to be seated. 44 is provided.

The insertion portion 44 is preferably provided to always have the same shape as the shape of the insertion groove 34 to be inserted into the insertion groove 34, the insertion portion 44 of the shaft member 40 is The following technical configuration is added as a more preferable method to be more easily inserted into the insertion groove 34 of the gear member 30 to be seated in the insertion groove 34.

That is, since the insertion groove 34 is formed to have a predetermined depth, there is an outer portion at which the shaft member 40 starts to be inserted and an inner portion located inward thereof, and the cross section becomes smaller from the outer portion toward the inner portion. It is configured to have a side of the insertion groove 34 is substantially a predetermined inclined surface.

In other words, the insertion groove 34 has an outer portion which is a portion where the insertion portion 44 starts to be inserted so that the insertion portion 44 of the shaft member 40 is easily inserted, which is wider than the inner portion, and gradually toward the inner portion. It is configured to be narrow.

In addition, the insertion portion 44 of the shaft member 40 is also inserted into the insertion groove 34 having the structure as described above is formed with the same inclined surface as the inclined surface of the insertion groove 34 to be seated, the insertion The width of the end of the insertion portion 44 that is first inserted into the groove 34 should be equal to the width of the inner surface of the insertion groove 34.

Therefore, the end of the insertion portion 44 inserted into the insertion groove 34 first is narrower than the portion inserted later into the insertion groove 34, and as a result, the end width of the insertion portion 44 is the insertion groove ( It is smaller than the width of the outer portion of 34 so that the coupling between the two members at the time of initial coupling of the gear member 30 and the shaft member 40 can be made easier.

On the other hand, the gear member 30 and the shaft member 40 through the coupling means 50 in order to prevent the mutual separation after the shaft member 40 is inserted into the gear member 30 is seated Are mutually coupled.

Here, the coupling means 50 is the same as the screw or bolt that is commonly used, as shown in Figure 4a through the shaft insertion portion 33 provided in the gear member 30 of the shaft member 40 It should just be fastened to the insertion part 44.

Therefore, the gear member 30 and the shaft member 40 provided to have the coupling structure of the present invention can be applied to the driving portions of various devices, and in particular, when applied to the driving portion of the water softener, the rotary valve 60 for controlling the flow path of the water softener. ) Can be used to rotate.

In order for the gear member 30 to be used to rotate the driving unit of the water softener, that is, the rotary valve 60, the accurate rotation angle of the rotary valve 60 should be measured. ) Is preferably provided with a slit part 35 for measuring the rotation angle of the gear part 31.

The slit part 35 is provided on one side of the gear part 31 to have a concentric axis with the gear part 31 of the gear member 30, and the slit part 35 has at least one slit groove 35a. ) Is provided.

For reference, the slit part 35 is necessary to detect the rotation angle and the current position of the gear member 30, and the light emitting part (not shown) and the light receiving part on both sides with the slit part 35 as the center. When the gear part 31 rotates by installing (not shown), the slit groove 35a of the slit part 35 integrated with the gear part 31 passes through between a light emitting part and a light receiving part.

When the slit part 35 is placed between the light emitting part and the light receiving part, the light receiving part does not receive the light of the light emitting part, but light rotates to the light receiving part at a point where the slit groove 35a passes between the light emitting part and the light receiving part by rotation. Although the present position and the rotation angle of the gear part can be detected by the transmitted principle, the technique of detecting the current position and the rotation angle of the gear member 30 by the slit part 35 is not related to the present invention. Description is omitted.

   On the other hand, if the current position and the rotation angle of the gear member 30 as described above should be detected, the coupling position between the gear member 30 and the shaft member 40 should also not be changed.

Therefore, the coupling position of the shaft member 40 can be known on either side of the shaft insertion portion 33 so that the initial coupling position between the gear member 30 and the shaft member 40 can be easily identified. Notch groove 36 is provided.

In addition, the insertion portion 44 of the shaft member 40 is provided with a notch protrusion 46 that can be fitted into the notch groove 36.

Hereinafter, the operation when the gear member 30 and the shaft member 40 of the present invention having the configuration as described above are applied to the drive unit of the water softener will be described.

5 and 6, in the state in which the gear member 30 and the shaft member 40 of the present invention are coupled to each other in order to drive the driving unit of the water softener, for example, the rotary valve 60 for switching the flow path. The other side of the shaft member 40 is connected to the rotary valve 60 to provide a rotational force of the gear member 30 to the rotary valve 60.

Here, the rotary valve 60 is to switch the flow path by the relative rotation with the fixed flow path control port 61 in the upper portion.

Therefore, the driving force of the drive motor 70 is transmitted to the gear member 30 through the pinion gear 71 installed in the drive motor 70, the gear member 30 is vertically coupled shaft member 40 The flow path is switched by transmitting a rotational force to the rotary valve 60 through the medium, wherein the position and the rotation angle of the current gear member 30 are detected by the slit part 35 provided integrally with the gear member 30. Will be done.

Here, reference numeral 80 is a housing for installing the shaft member 40, the rotary valve 60 and the fixed flow path control port 61 to the water softener body (not shown).

According to the present invention as described above, since the gear is always vertically engaged with the shaft and its vertical engagement relationship is maintained even after a long time, it is possible to suppress the occurrence of runout in the rotating gear, so that rotational vibration and noise of the gear are reduced. There is a distinctive effect that can be significantly reduced and above all the torque can be transmitted more reliably.

Claims (5)

Rotary valve 60 for controlling the water softener flow path; Gear portion 31 for controlling the amount of rotation of the rotary valve 60, and is formed integrally with the center of the gear portion 31 while being perpendicular to the gear portion 31 and has a rectangular insertion groove 34 therein A gear member 30 having a shaft insertion portion 33 having a); One end is composed of the insertion portion 44 having the same shape as the insertion groove 34 so that the insertion groove 34 can be inserted, the other end of the rotary valve 60 to transmit the rotational force of the gear member 30 Shaft member 40 is connected to; And Coupling structure of the gear and the shaft used in the drive portion of the water softener comprising a; coupling means (50) for coupling the gear member (30) and the shaft member (40) to each other. The method of claim 1, wherein the insertion groove 34 of the gear member 30 has a quadrangular shape as a whole, but is used in the driving part of the water softener, characterized in that the two sides facing each other are formed with a convexly curved surface 34a. Combined structure of gear and shaft. According to claim 2, wherein the insertion groove 34 has an inclined surface of the cross-section becomes smaller toward the inner side from the outer side from which the shaft member 40 begins to insert, the insertion portion 44 of the shaft member 40 Gear and shaft coupling structure used in the drive portion of the water softener, characterized in that the inclined surface and the same inclined surface of the insertion groove is formed to be seated in the insertion groove (34). According to claim 3, wherein any one side of the gear portion 31 is provided with a slit portion 35 having one or more slit grooves 35a so as to measure the rotation angle of the gear portion 31. Coupling structure of gear and shaft used for driving part of water softener. The notch groove 36 of any one of claims 1 to 4, wherein one side of the insertion groove 34 is provided with a notch groove 36 for allowing the coupling position of the shaft member 40 to be known. Part 44 is a coupling structure of the gear and the shaft used in the drive portion of the water softener, characterized in that provided with a notch projection 46 that can be fitted into the notch groove (36).

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