KR20210055152A - Driving apparatus for combined use of juicer and mixer - Google Patents

Abstract

The present invention relates to a driving apparatus for a juicer and a mixer, wherein the driving apparatus for a juicer and a mixer according to the present invention comprises: a driving unit for generating power; a first driving shaft rotating by the driving unit and a second driving shaft through which the first driving shaft passes therein as a hollow shaft and rotates at a speed different from that of the first driving shaft; a support part in which end parts of the first driving shaft and the second driving shaft protrude through a hole, and which rotatably supports the second driving shaft; and a first bearing disposed between the first driving shaft and the second driving shaft, and a second bearing disposed between the second driving shaft and the support part, wherein the first bearing and the second bearing are disposed to overlap each other in a horizontal direction.

Description

A 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 generates juice juice by crushing and compressing materials such as vegetables or fruits with a screw rotating at a low speed, and a mixer blade rotating at a high speed. It relates to a juicer and a blender combined power device capable of using a blender for crushing or mixing ingredients together.

In general, a blender is a device that crushes and mixes food materials such as vegetables, fruits, and grains by a mixer blade rotating at high speed, and a juicer rotates at a low speed with a mesh drum as disclosed in Korean Patent Registration No. 10-793852. It is a method of crushing and pressing the ingredients between the screws to make soy milk using the principle of grinding and squeezing the beans with a millstone, and making juice by grinding and pressing fruits with high viscosity such as tomatoes, kiwis, and strawberries on a grater. It is a household device.

Both devices have similar operations of rotating a mixer blade or screw with a motor, so a device that can be combined into one device and used for a combination can be manufactured. That is, by replacing the housing in which the mixer blade is mounted or the housing in which the screw is mounted on a single body in which the drive shaft rotating by the motor protrudes, it can be used as a blender and a juicer. However, there is a problem in that the mixer blade must rotate at high speed and the screw must rotate at 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, problems such as durability deterioration, noise, and heat generation may occur due to friction between the high-speed shaft and the low-speed shaft due to the vibration of the high-speed shaft.

Korean Patent Registration No. 10-793852

Accordingly, an object of the present invention is to form a rotating shaft rotating at high speed and low speed in the form of a double shaft so that a juicer and a blender can be used together, and by arranging a bearing between the high speed drive shaft and the low speed drive shaft formed by concentric double shaft It is intended to provide a power device for both a juicer and a blender that 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 that are not mentioned will be clearly understood by those skilled in the art from the following description.

The above object, in accordance with the present invention, the drive unit for generating power; A second drive shaft that is a first drive shaft and a hollow shaft rotated by a drive unit, wherein the first drive shaft is spaced apart and penetrates therein, and rotates at a different speed from the first drive shaft; And a first bearing disposed between the first drive shaft and the second drive shaft.

Here, it is preferable that the separation distance between the first drive shaft and the second drive shaft is 0.5mm to 1.5mm.

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

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

Here, the driving unit includes a motor that rotates 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 deceleration unit formed between the second drive shaft and the clutch bearing to decelerate the 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 that is coupled to surround the outer ring of the clutch bearing and rotates when the first driving shaft rotates in one direction.

Here, the reduction unit is disposed on the first drive shaft and the end is coupled to the hollow formed in the power transmission unit to rotate the sun gear; A plurality of planetary gears rotated by gear coupling with the sun gear; And a ring gear that is formed to surround the outside of the plurality of planetary gears and is engaged with 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 juicer and blender combined power unit of the present invention as described above, the high-speed drive shaft and the low-speed drive shaft are formed in the form of a concentric double shaft, and the housing for the use of the blender and the housing for the use of the juicer are replaced. There is an advantage that it can be used as a combination.

In addition, when rotating the high-speed drive shaft for use with a blender, the clutch bearing does not transmit power to the low-speed drive shaft, thereby solving problems such as power loss, noise, wear, and failure due to unnecessary operation of the reduction unit.

In addition, by arranging bearings between the high-speed drive shaft and the low-speed drive shaft formed by concentric double shafts, vibration of the high-speed drive shaft is suppressed, and the separation between the high-speed drive shaft and the low-speed drive shaft prevents friction between the high-speed drive shaft and the low-speed drive shaft. There is also an advantage in that it can solve the problems of weakened durability, decreased driving power, vibration, noise, and heat.

1 is a perspective view of a juicer and a blender combined power device according to an embodiment of the present invention.
2 is an exploded perspective view of FIG. 1.
3 is a cross-sectional view of FIG. 1.
4 is an enlarged view of A of FIG. 3.
Fig. 5 shows the operation of Fig. 3 when used as a blender.
6 shows the operation of FIG. 3 when used as a juicer.

The first drive shaft 150 is prevented from shaking at the lower end or the middle of the coaxial 150.

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

The support part 110 has a hole formed in the center, and the upper ends of the first driving shaft 150 and the second driving shaft 160 in the form of a double shaft protrude through the hole as described above, and the second driving shaft 160 is rotated. Support as much as possible. A plurality of screw holes 119 are formed around the central hole of the support part 110, and a screw hole 146 which penetrates up and down the ring gear 145 is formed at the corresponding position of the screw hole 119, thereby forming a screw hole. It is possible to fix the ring gear 145 and the support 110 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 110 A second bearing 172 may be disposed therebetween. Accordingly, the second drive shaft 160 may be able to rotate relative to the support part 110 and the first drive shaft 150.

At this time, the first bearing 171 serves to prevent vibration of the upper end of the first drive shaft 150 while allowing relative rotation between the first drive shaft 150 and the second drive shaft 160. Therefore, in the present invention, it is not necessary to configure the first drive shaft 150 and the second drive shaft 160 to be in contact with each other to prevent vibration, 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 the first drive shaft 150 is prevented from shaking and the first drive shaft 150 and the second drive shaft 160 are separated, durability is weakened due to friction between the first drive shaft 150 and the second drive shaft 160. , It can solve the problems of driving power decrease, noise, vibration, and heat generation. In this case, the separation distance between the first drive shaft 150 and the second drive shaft 160 is preferably 0.5mm to 1.5mm, but is not limited thereto.

At this time, in this embodiment, as shown in FIG. 3, the first bearing 171 and the second bearing 172 are not disposed at different heights up and down, but at the same position or at a position overlapping each other 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 drive shaft 160 and the support 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 part 110, and a single bearing 171 is disposed between the first drive shaft 150 and the second drive shaft 160. ) Is disposed so that 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 part 110.

In the center of the bottom of the second drive shaft 160, a first bearing insertion groove 162 with a diameter larger than the through hole 169 is formed 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 drive shaft 150 and the second drive 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 and a lower flange portion ( An intermediate shaft portion 163 having a diameter smaller than that of the lower flange portion 161 on the upper portion of the 161 and the third bearing 173 is disposed on the outer surface, and the prismatic protrusion portion 165 located on the upper portion of the intermediate shaft portion 163 Is formed.

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

Between the above-described second drive shaft 160 and the clutch bearing 125, a reduction unit for reducing the rotational speed of the motor 120 to rotate the second drive shaft 160 at a low speed may be formed.

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

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

In addition, a ring gear 145 for gear coupling with the plurality of first planetary gears 133 is disposed to surround the outside of the plurality of first planetary gears 133. At this time, the ring gear 145 is fixed by screws 149 together with the support part 102 as described above to fix the position.

Accordingly, the plurality of first planetary gears 133 are gear-coupled with the ring gear 145 and the first sun gear 131, respectively, and the first sun gear 131 between the ring gear 145 and the first sun gear 131 ) Rotates and revolves around the first sun gear 131 when it rotates.

At this time, as shown, the configuration of the sun gears 131, 136, 141 and the plurality of planetary gears 133, 138, 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 top, and a third sun gear 141 and a second sun gear 136 and a plurality of second planetary gears 138 are formed on the top. A plurality of third planetary gears 143 may be formed. At this time, the axis of the planetary gears (133, 138) positioned below is supported between each stage, and rotates with the revolution of the planetary gears (133, 138), and the sun gears (136, 141) located at the top are coupled to the center. By doing so, a carrier 147 that transmits the rotational force may be formed.

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

In this embodiment, the sun gear (131, 136, 141) and a plurality of planetary gears (133, 138, 143) are composed of three stages to reduce the rotational speed of the motor 120 by multiple stages, for example. 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, an operation of the driving unit for rotating the first drive shaft 150 and the second drive shaft 160 at high and low speeds according to the present embodiment will be described.

Fig. 5 shows the operation of Fig. 3 when used as a blender, and Fig. 6 shows the operation of Fig. 3 when used as a juicer.

As shown in FIG. 5, when the motor 120 is rotated at high speed in the counterclockwise direction, 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 with the rotation of the motor 120. Therefore, when the mixer blade of the mixer is coupled to the end of the first drive shaft 150, the mixer blade can be used as a mixer that rotates at high speed.

At this time, when the first drive shaft 150 rotates at high speed, 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, wear and breakdown by blocking unnecessary operation of the reduction unit driving the second drive shaft 160 at a low speed.

Next, as shown in FIG. 6, when the motor 120 is rotated in a clockwise direction at high speed, the clutch bearing 125 is locked and the power transmission unit 127 is coupled to the outer ring of the clutch bearing 125. The plurality of planetary gears 133 are rotated and rotated at low speed by gear coupling of the sun gear 131, a plurality of planetary gears 133, and a ring gear 145 that are coupled to the power transmission unit 127 You will do an orbital exercise. At this time, as described above, the sun gears 131, 136, 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 with 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, so that the first bearing 171 and the second bearing It is supported between the support part 102 and the first drive shaft 150 by the 172 and the third bearing 173 to rotate at a low speed. Accordingly, by coupling the lower rotation shaft of the screw 300 to the end of the second drive shaft 160, the screw 300 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 within the scope of the appended claims. Anyone of ordinary skill in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims is considered to be within the scope of the description of the claims of the present invention to various ranges that can be modified.

100: juicer and blender combined power unit
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 that generates power;
A second drive shaft that is a first drive shaft and a hollow shaft rotated by a drive unit, wherein the first drive shaft passes through and spaced apart from the inside, and rotates at a different speed from the first drive shaft; And
A juicer and a blender combined power device comprising a first bearing disposed between the first drive shaft and the second drive shaft. The method of claim 1,
A power device for a juicer and a blender having a separation distance between the first drive shaft and the second drive shaft of 0.5mm to 1.5mm. The method of claim 1,
Ends of the first drive shaft and the second drive shaft protrude through the hole, and a support portion rotatably supporting the second drive shaft, and
A juicer and a blender combined power device comprising a second bearing disposed between the second drive shaft and the support part. The method of claim 1,
A juicer and a blender combined power unit having a first bearing insertion groove into which the first bearing is inserted in the center of the bottom of the second drive shaft. The method of claim 1,
The driving part
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;
A juicer and a blender combined power device comprising a deceleration unit formed between the second drive shaft and the clutch bearing to decelerate the rotation of the motor to rotate the second drive shaft at a low speed. The method of claim 5,
The driving part
A juicer and a blender combined power device further comprising a power transmission unit that is coupled to surround the outer ring of the clutch bearing and rotates when the first drive shaft rotates in one direction. The method of claim 6,
The reduction 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 gear coupling with the sun gear; And
A juicer and a blender combined power device comprising a ring gear formed to surround the outside of the plurality of planetary gears and engaged with the plurality of planetary gears. The method of claim 7,
The sun gear and the plurality of planetary gears are formed in multiple stages, and a juicer and a blender combined power unit in which a carrier that rotates while supporting the plurality of planetary gears is formed between each stage.

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