KR102269541B1 - Driving apparatus for combined use of juicer and mixer - Google Patents

Abstract

The present invention relates to a power unit for both a juicer and a mixer, wherein the power unit for a juicer and a mixer according to the present invention includes a driving unit for generating power, a first driving shaft rotating by the driving unit, and a hollow shaft, the first driving shaft passing through the inside and a second drive shaft rotating at a speed different from that of the first drive shaft, and ends of the first drive shaft and the second drive shaft protrude through a hole, and a support part for rotatably supporting the second drive shaft, the first drive shaft and a first bearing disposed between the second drive shaft and a second bearing disposed between the second drive shaft and the support, wherein the first bearing and the second bearing are disposed to overlap in a horizontal direction do.

Description

Power unit for both juicer and blender {DRIVING APPARATUS FOR COMBINED USE OF JUICER AND MIXER}

The present invention relates to a power device for both a juicer and a blender, and more particularly, to a juicer that produces juice by crushing and squeezing ingredients such as vegetables and fruits by a screw rotating at low speed, and a mixer blade rotating at high speed It relates to a power unit combined with a juicer and a blender that allows the blender to crush or mix materials by means of a blender.

In general, a blender is a device that grinds and mixes ingredients such as vegetables, fruits, and grains by a mixer blade rotating at high speed, and a juicer rotates at a low speed with a mandrel as disclosed in Korean Patent Registration No. 10-793852 By grinding and squeezing the ingredients between the screws, soybeans are made into soy milk using the principle of grinding and pressing with a millstone, and fruits with high viscosity such as tomatoes, kiwis, and strawberries are grinded on a grater and pressed to make juice. It is a home appliance.

Since both devices are similar in operation to rotating the mixer blade or screw with a motor, a device that can be combined into one device can be manufactured to be used for both purposes. That is, by replacing a housing in which a mixer blade is mounted or a housing in which a screw is mounted on a single main body in which a drive shaft rotated by a motor protrudes, a mixer and a juicer can be used in combination. However, there is a problem in that the mixer blade must be rotated at a high speed and the screw must be rotated at a low speed.

In addition, in the case of a high-speed shaft extending long from the motor shaft, it is difficult to maintain roundness and straightness, and vibration may occur. In particular, when the high-speed shaft and the low-speed shaft are formed as concentric double shafts, the vibration of the high-speed shaft may cause deterioration of durability, noise, and heat generation due to friction between the high-speed shaft and the low-speed shaft.

Republic of Korea Patent No. 10-793852

Accordingly, an object of the present invention is to form a rotating shaft rotating at high and low speeds in a double shaft form so that a juicer and a mixer can be used in combination, and a bearing is placed between a high speed drive shaft and a low speed drive shaft formed as a concentric double shaft to achieve high speed An object of the present invention is to provide a power unit for both a juicer and a mixer, which suppresses vibration of the drive shaft and prevents friction between the high speed drive shaft and the low speed drive shaft by separating the high speed drive shaft and the low speed drive shaft.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

The above object, according to the present invention, a driving unit for generating power; a first driving shaft rotated by a driving unit and a hollow shaft, the first driving shaft passing through the inside spaced apart, and a second driving shaft rotating at a speed different from that of the first driving shaft; And it may be achieved by a power unit combined with a juicer and a mixer including a first bearing disposed between the first drive shaft and the second drive shaft.

Here, the separation distance between the first driving shaft and the second driving shaft is preferably 0.5 mm to 1.5 mm.

Here, ends of the first drive shaft and the second drive shaft protrude through the hole, and may include a support portion rotatably supporting the second drive shaft and a second bearing disposed between the second drive shaft and the support portion. have.

Here, a first bearing insertion groove into which the first bearing is inserted may be formed in the center of the bottom surface of the second drive shaft.

Here, the driving unit includes a motor for rotating the first driving shaft at a high speed; a clutch bearing disposed on the first drive shaft to transmit torque only when the first drive shaft rotates in one direction; and a reduction unit formed between the second drive shaft and the clutch bearing to reduce rotation of the motor to rotate the second drive shaft at a low speed.

Here, the driving unit may further include a power transmission unit coupled to surround the outer ring of the clutch bearing to rotate when the first driving shaft rotates in one direction.

Here, the reduction part is disposed on the first drive shaft and the end of the sun gear is coupled to the hollow formed in the power transmission part to rotate; a plurality of planetary gears rotated by being coupled to the sun gear; and a ring gear formed to surround the outside of the plurality of planetary gears and gear-coupled to the plurality of planetary gears.

Here, the sun gear and the plurality of planetary gears may be formed in multiple stages, and a carrier rotating while supporting the plurality of planetary gears may be formed between each stage.

According to the combined power device for a juicer and a blender of the present invention as described above, the high-speed drive shaft and the low-speed drive shaft are formed in a concentric double shaft shape, and the housing for using the blender and the housing for using the juicer are replaced and mounted, so that the blender and the juicer are installed. It has the advantage of being able to use it as a device.

In addition, when rotating the high-speed drive shaft for use in the mixer, power is not transmitted to the low-speed drive shaft by the clutch bearing, so that problems such as power loss, noise, wear, and failure due to unnecessary operation of the reduction unit can be solved.

In addition, by placing a bearing between the high-speed drive shaft and the low-speed drive shaft formed as a concentric double shaft, vibration of the high-speed drive shaft is suppressed, and the high-speed drive shaft and the low-speed drive shaft are spaced apart to prevent friction between the high-speed drive shaft and the low-speed drive shaft. It also has the advantage of being able to solve the problems of weakening durability, lowering driving force, vibration, noise, and heat.

1 is a perspective view of a power unit combined with a juicer and a mixer according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of FIG. 1 ;
FIG. 3 is a cross-sectional view of FIG. 1 .
4 is an enlarged view of A of FIG. 3 .
Figure 5 shows the operation of Figure 3 in the case of using as a mixer.
Figure 6 shows the operation of Figure 3 in the case of use as a juicer.

A vibration of the first driving shaft 150 is prevented at the lower end or the middle portion of the coaxial 150 .

A second driving shaft 160 in which a through hole 169 is formed so that the first driving shaft 150 passes therein may be formed at an upper end of the first driving shaft 150 . That is, the second driving shaft 160 and the first driving shaft 150 are formed in a concentric double shaft shape such that the second driving shaft 160 surrounds the outside of the end of the first driving shaft 150 . A prismatic protrusion 165 is formed at the upper end of the second drive shaft 160 to be inserted into and coupled to a prismatic shaft hole formed in the rotation shaft of the screw (not shown), and the lower end is located in the support 110 . That is, the end of the second driving shaft 160 is also formed to protrude from the upper surface of the support 110 .

The support part 110 has a hole formed in the center, and as described above, the upper ends of the first driving shaft 150 and the second driving shaft 160 in the dual shaft form protrude through the hole, and the second driving shaft 160 is rotated. support it possible A plurality of screw holes 119 are formed around the hole in the center of the support 110, and a screw hole 146 penetrating vertically through the ring gear 145 is formed at a corresponding position of the screw hole 119 to form a screw hole. The ring gear 145 and the support part 110 can be fixed by inserting the screw 149 into the (119, 146).

At this time, the first bearing 171 is disposed between the outer surface of the first drive shaft 150 and the inner surface of the second drive shaft 160 , and the outer surface of the second drive shaft 160 and the inner surface of the support unit 110 . A second bearing 172 may be disposed therebetween. Accordingly, the second driving shaft 160 may be able to rotate relative to the support 110 and the first driving shaft 150 .

At this time, the first bearing 171 serves to enable relative rotation between the first drive shaft 150 and the second drive shaft 160 and to prevent vibration of the upper end of the first drive shaft 150 . Therefore, in the present invention, there is no need to configure the first drive shaft 150 and the second drive shaft 160 to be in contact with each other for vibration prevention, and as shown in FIG. 4 , the first drive shaft 150 and the second drive shaft ( 160) can be separated from each other. Therefore, since vibration of the first drive shaft 150 is prevented and the first drive shaft 150 and the second drive shaft 160 are spaced apart, durability is weakened due to friction between the first drive shaft 150 and the second drive shaft 160 . , it can solve the problems of lowering driving force, noise, vibration, and heat. In this case, the separation distance between the first driving shaft 150 and the second driving shaft 160 is preferably 0.5 mm to 1.5 mm, but is not necessarily limited thereto.

At this time, in this embodiment, as shown in FIG. 3 , the first bearing 171 and the second bearing 172 are not arranged at different heights up and down, but are arranged at the same position or overlapping position in the horizontal direction. That is, the first bearing 171 is positioned inside the second bearing 172 to reduce the length of the entire shaft, thereby making the entire power unit more compact.

In addition, the third bearing 173 may be disposed between the second driving shaft 160 and the support part 110 at an upper position of the second bearing 172 . Accordingly, in the present invention, two-stage bearings 172 and 173 are disposed between the second drive shaft 160 and the support unit 110 , and a single bearing 171 is disposed between the first drive shaft 150 and the second drive shaft 160 . ), a total of three bearings 171 , 172 , 173 may be disposed between the first drive shaft 150 , the second drive shaft 160 , and the support unit 110 .

A first bearing insertion groove 162 having a larger diameter than the through hole 169 is formed in the center of the bottom surface of the second drive shaft 160 around the through hole 169 into which the first drive shaft 150 is inserted. . Accordingly, the first bearing 171 may be disposed between the first driving shaft 150 and the second driving shaft 160 through the first bearing insertion groove 162 .

In addition, the second drive shaft 160 has a large diameter in the form of a flange at the lower end as shown in FIG. 2 , and a lower flange portion 161 in which the second bearing 172 is disposed on the outer surface, a lower flange portion ( The intermediate shaft portion 163 having a diameter smaller than that of the lower flange portion 161 at the upper portion of the 161) and the third bearing 173 disposed on the outer surface thereof, and a square protrusion portion 165 positioned above the intermediate shaft portion 163 ) is formed

At this time, the second bearing 172 and the third bearing 173 are respectively inserted between the lower flange portion 161 of the second drive shaft 160 and the outer surface of the intermediate shaft portion 163 in the center portion of the bottom surface of the support portion 110 . The insertion groove may be formed in two stages, respectively.

A reduction unit may be formed between the above-described second drive shaft 160 and the clutch bearing 125 to reduce the rotation speed of the motor 120 to rotate the second drive shaft 160 at a low speed.

The reduction unit may include sun gears 131 , 136 , and 141 , planetary gears 133 , 138 , 143 , and a ring gear 145 .

As shown in FIG. 3 , the first sun gear 131 is disposed to be inserted into the first driving shaft 150 , and the lower end of the first sun gear 131 is inserted into the hollow 128 formed in the power transmission unit 127 . As such, it rotates on the first drive shaft 150 together with the power transmission unit 127 . At this time, a gear is formed on the outer surface of the upper end of the first sun gear 131 in the circumferential direction, and a plurality of first planetary gears 133 (in the drawing, three planetary gears are formed on the gear of the first sun gear 131 ). ) is geared along the circumference of the first sun gear 131 .

In addition, the plurality of first planetary gears 133 and a ring gear 145 gear-coupled to surround the outside of the plurality of first planetary gears 133 are disposed. At this time, the ring gear 145 is fixed by the screw 149 together with the support portion 102 as described above, and the position is fixed.

Accordingly, the plurality of first planetary gears 133 are gear-coupled to the ring gear 145 and the first sun gear 131 , respectively, and the first sun gear 131 is disposed between the ring gear 145 and the first sun gear 131 . ) rotates and rotates around the first sun gear 131 .

At this time, as illustrated, the sun gears 131 , 136 , and 141 and the plurality of planetary gears 133 , 138 , and 143 may be formed in multiple stages, the first sun gear 131 and the plurality of first planetary gears. (133) A second sun gear 136 and a plurality of second planetary gears 138 are formed on the upper portion, and a third sun gear 141 and a third sun gear 141 are formed on the second sun gear 136 and the plurality of second planetary gears 138. A plurality of third planetary gears 143 may be formed. At this time, between each stage, the shaft of the planetary gears 133 and 138 positioned below is supported and rotates with the revolution of the planetary gears 133 and 138, and the sun gears 136 and 141 positioned on the upper part are coupled to the center. A carrier 147 that transmits a rotational force may be formed.

In this case, the shaft of the third planetary gear 143 positioned at the uppermost end may be inserted and supported by the lower flange portion 161 of the second driving shaft 160 described above. Accordingly, as the plurality of planetary gears 133, 138, and 143 perform an orbital motion together with the rotational motion, the upper second driving shaft 160 is decelerated in multiple stages at a low speed to perform a rotational motion.

In this embodiment, the sun gears 131 , 136 , 141 and the plurality of planetary gears 133 , 138 , 143 are configured in three stages to reduce the rotation speed of the motor 120 in multiple stages. It is not limited thereto, and may be configured in one or two stages. Furthermore, it may be configured in three or more stages.

Hereinafter, the operation of the driving unit for rotating the first driving shaft 150 and the second driving shaft 160 at high and low speeds according to the present embodiment will be described.

5 shows the operation of FIG. 3 in the case of using as a blender, and FIG. 6 shows the operation of FIG. 3 in the case of using as a juicer.

As shown in FIG. 5 , when the motor 120 is rotated counterclockwise at high speed, the locking of the clutch bearing 125 mounted on the first drive shaft 150 is released, and the first drive shaft 150 is It can rotate at high speed together with the rotation of the motor 120 . Therefore, when the mixer blade of the mixer is coupled to the end of the first driving shaft 150, the mixer blade can be used as a mixer in which the blade rotates at high speed.

At this time, when the first drive shaft 150 rotates at a high speed, the power transmission may be blocked by the clutch bearing 125 , so that the second drive shaft 160 including the speed reducer does not operate. Accordingly, it is possible to reduce problems such as power loss, noise, abrasion, and failure by blocking unnecessary operation of the reduction unit for driving the second drive shaft 160 at a low speed.

Next, as shown in FIG. 6 , when the motor 120 is rotated clockwise at high speed, the clutch bearing 125 is locked and power is applied to the power transmission unit 127 coupled to the outer ring of the clutch bearing 125 . By the gear coupling of the sun gear 131, the plurality of planetary gears 133, and the ring gear 145 coupled to the power transmission unit 127 by transmitting do orbital motion. In this case, as described above, the sun gears 131 , 136 , and 141 and the plurality of planetary gears 133 , 138 , 143 may be formed in multiple stages. At this time, the second drive shaft 160 coupled to the upper shaft of the plurality of planetary gears 143 is decelerated according to the orbital motion of the plurality of planetary gears 131 , 136 , and 143 to the first bearing 171 and the second bearing. 172 and the third bearing 173 are supported between the support 102 and the first drive shaft 150 to rotate at a low speed. Therefore, by coupling the lower rotating shaft of the screw 300 to the end of the second driving shaft 160, it can be used as a juicer in which the screw 300 rotates at a low speed.

The scope of the present invention is not limited to the above-described embodiments, but may be implemented in various forms of embodiments within the scope of the appended claims. Without departing from the gist of the present invention claimed in the claims, it is considered within the scope of the description of the claims of the present invention to various extents that can be modified by any person skilled in the art to which the invention pertains.

100: Power unit for juicer and blender
110: support
119: screw hole
120: motor
125: clutch bearing
127: power transmission unit
128: hollow
131: first sun gear
133: first planetary gear
136: second sun gear
138: second planetary gear
141: third sun gear
143: third planetary gear
145: ring gear
146: screw hole
147: carrier
149: screw
150: first drive shaft
160: second drive shaft
161: lower flange portion
162: first bearing insertion groove
163: intermediate shaft portion
165: square protrusion
169: through hole
171: first bearing
172: second bearing
173: third bearing

Claims (8)

a driving unit for generating power;
A first drive shaft rotated by a driving unit and a hollow shaft through which the first drive shaft forms a spaced space therein and receives power from the rotation of the first drive shaft to rotate at a different speed from the first drive shaft ;
a support part in which a hole is formed in a central region so that ends of the first driving shaft and the second driving shaft protrude through; and
a first bearing disposed between the first drive shaft and the second drive shaft;
The second drive shaft has a larger diameter in the form of a flange at its lower end, a lower flange portion having a second bearing disposed on its outer surface, and a smaller diameter than the lower flange portion at an upper portion of the lower flange portion, and has a third diameter on the outer surface Including the intermediate shaft portion on which the bearing is disposed,
A second bearing insertion groove is formed in a center portion of the bottom surface of the support part, and the second bearing is disposed in a space between the inner surface of the second bearing insertion groove and the outer surface of the lower flange part, A third bearing insertion groove having a smaller diameter than the second bearing insertion groove is formed in the upper portion of the second bearing insertion groove, and a space between the inner surface of the third bearing insertion groove and the outer surface of the intermediate shaft part By placing the third bearing on
A combined power unit for a juicer and a mixer to maintain a separation distance between the first and second drive shafts by supporting the first bearing, the second bearing, and the third bearing. The method of claim 1,
A power unit combined with a juicer and a blender, wherein the separation distance between the first drive shaft and the second drive shaft is 0.5 mm to 1.5 mm. delete The method of claim 1,
A power unit for both a juicer and a mixer in which a first bearing insertion groove into which the first bearing is inserted is formed in the center of the bottom surface of the second drive shaft. The method of claim 1,
the driving unit
a motor rotating the first drive shaft at high speed;
a clutch bearing disposed on the first drive shaft to transmit torque only when the first drive shaft rotates in one direction;
and a reduction unit formed between the second drive shaft and the clutch bearing to reduce rotation of the motor to rotate the second drive shaft at a low speed. 6. The method of claim 5,
the driving unit
The power unit combined with a juicer and blender further comprising a power transmission unit coupled to surround the outer ring of the clutch bearing and rotating when the first drive shaft rotates in one direction. 7. The method of claim 6,
the decelerating part
a sun gear disposed on the first drive shaft and having an end coupled to a hollow formed in the power transmission unit to rotate;
a plurality of planetary gears rotated by being coupled to the sun gear; and
A power unit for both a juicer and a mixer including a ring gear formed to surround the outside of the plurality of planetary gears and gear-coupled to the plurality of planetary gears. 8. The method of claim 7,
The sun gear and the plurality of planetary gears are formed in multiple stages, and a carrier supporting the plurality of planetary gears and rotating is formed between each stage.

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