Driving device enabling single output shaft to rotate at high speed or low speed and juicer adopting driving device and capable of serving as blender

Abstract

The present invention relates to a drive device for rotating a single output shaft at a high speed or a low speed, and a juicer which uses the drive device and can also be used as a blender, the drive device for rotating a single output shaft at a high speed or a low speed comprising: a drive motor; a clutch which moves up and down, is coupled to a rotor shaft top gear formed on a motor shaft of the drive motor when moving downward, and rotates together with the motor shaft; an output shaft having a lower end coupled to an upper end of the clutch and rotating together with the clutch; the output shaft gear is sleeved on the output shaft and rotates, and when the clutch moves upwards, the output shaft gear is combined with the clutch and rotates together with the clutch; the rotor shaft gear is arranged on the motor shaft in a sleeving mode, rotates together with the motor shaft and is elastically supported, and when the clutch moves towards the lower side, the rotor shaft gear makes contact with the clutch and moves towards the lower side; and a reduction gear coupled between the rotor shaft gear and the output shaft gear and configured to reduce a rotational speed of the output shaft gear with respect to a rotational speed of the motor shaft.

Description

Technical Field

[0001] The present invention relates to a driving device that causes a single output shaft to rotate at high speed or low speed and a juicer that uses the driving device and can also serve as a blender. More specifically, the present invention relates to a driving device that causes a single output shaft to rotate at high speed or low speed and a juicer that uses the driving device and can also serve as a blender: the driving device can also serve as a juicer that generates juice by crushing and squeezing materials such as vegetables or fruits by a low-speed rotating screw and as a blender that crushes or mixes materials by a high-speed rotating rotary blade. Background Art

[0002] Generally speaking, a blender is a device that crushes and mixes vegetables, fruits, grains and other ingredients by means of a high-speed rotating rotary blade (blender blade), and a juicer is a household device that grinds vegetables, fruits, etc. into juice by crushing and squeezing the materials between a barrel and a low-speed rotating screw, using the principle of grinding soybeans with a stone mill, for example.

[0003] Both devices rotate the blender blade or the screw by a motor, and the operations are similar to each other, so they can be combined into one device to make a combined device, but there is a problem that the blender blade needs to be rotated at a high speed and the screw needs to be rotated at a low speed.

[0004] Korean Patent Publication No. 1994357 discloses a driving device that can form a high-speed shaft that rotates at high speed and a low-speed shaft that rotates at low speed into a double shaft, thereby serving as a blender and a juicer. However, if the high-speed shaft and the low-speed shaft are formed into a double shaft, problems such as noise and waterproofing may occur due to interference between the two shafts. Summary of the invention

[0005] The present invention is proposed to solve the above-mentioned problems, and its purpose is to provide a driving device that can rotate a single output shaft at high speed or low speed and a juicer that can also serve as a blender using the driving device. It uses a single motor that rotates at high speed to rotate the single output shaft at high speed or low speed, so that it can also serve as a juicer or a blender.

[0006] The technical problems to be solved by the present invention are not limited to the problems mentioned above. For other problems not mentioned, technicians in the relevant technical field should be able to clearly understand them based on the following contents.

[0007] The above-mentioned purpose can be achieved by the driving device of the present invention that makes a single output shaft rotate at high speed or low speed, and the driving device that makes a single output shaft rotate at high speed or low speed is characterized in that it includes: a driving motor; a clutch that moves up and down, and when moving downward, it is combined with the rotor shaft top gear formed on the motor shaft of the driving motor and rotates together with the motor shaft; an output shaft, the lower end of which is combined with the upper end of the clutch and rotates together with the clutch; an output shaft gear that is sleeved on the output shaft and rotates, and when the clutch moves upward, the output shaft gear is combined with the clutch and rotates together with the clutch; a rotor shaft gear that is sleeved on the motor shaft and rotates together with the motor shaft and is elastically supported, and when the clutch moves downward, the rotor shaft gear contacts the clutch and moves downward; and a reduction gear, a gear combined between the rotor shaft gear and the output shaft gear, and used for relative rotation. The rotation speed of the motor shaft is reduced by the rotation speed of the output shaft gear. When the clutch moves downward, the top gear of the rotor shaft is engaged with the clutch, the engagement between the rotor shaft gear and the reduction gear is released, and the engagement between the output shaft gear and the clutch is released, thereby transmitting the high-speed rotation of the motor shaft to the clutch and the output shaft so that the output shaft rotates at a high speed. When the clutch moves upward, the engagement between the top gear of the rotor shaft and the clutch is released, the gears between the rotor shaft gear and the reduction gear are engaged, and the output shaft gear is engaged with the clutch, thereby reducing the high-speed rotation of the motor shaft through the reduction gear, causing the output shaft gear to rotate, and transmitting the rotation of the output shaft gear to the clutch and the output shaft so that the output shaft rotates at a speed lower than the speed of the motor shaft.

[0008] Here, it further includes: a clutch up and down moving part, which is used to move the clutch up and down.

[0009] Here, the clutch up-and-down moving part may include: a clutch housing combined with the clutch; and an up-and-down driving part connected to one side of the clutch housing for moving the clutch housing up and down.

[0010] Here, the invention may further include: a spring for elastically supporting the lower side of the rotor shaft gear.

[0011] Here, the method may further include: a bearing disposed between the output shaft and the output shaft gear.

[0012] Here, the invention may further include a housing that accommodates the driving motor, the clutch, the output shaft gear, the rotor shaft gear, and the reduction gear, wherein the upper end of the output shaft protrudes above the housing.

[0013] Here, the reduction gear may include: a first reduction gear gear-coupled with the rotor shaft gear; and a second reduction gear gear-coupled between the first reduction gear and the output shaft gear.

[0014] Here, the first reduction gear and the second reduction gear can be formed into two stages by a first gear group formed on a cylinder with a relatively small radius and a second gear group formed on a cylinder with a relatively large radius, the second gear group of the first reduction gear is gear-coupled with the rotor shaft gear to reduce rotation, the second gear group of the second reduction gear is gear-coupled with the first gear group of the first reduction gear to reduce rotation, and the output shaft gear is gear-coupled with the first gear group of the second reduction gear to reduce rotation.

[0015] In addition, the above-mentioned purpose can be achieved by the driving device of the present invention that makes a single output shaft rotate at high speed or low speed, and the driving device that makes a single output shaft rotate at high speed or low speed is characterized in that it includes: a driving motor; a rotor shaft gear, which is sleeved on the motor shaft of the driving motor and rotates together with the motor shaft, and is elastically supported and moves up and down; an output shaft, which moves up and down above the motor shaft, and when moving downward, it is combined with the rotor shaft top gear formed on the motor shaft and rotates together with the motor shaft, and the rotor shaft gear moves downward; an output shaft gear, which is sleeved on the output shaft and rotates, and when the output shaft moves upward, the output shaft gear is combined with the output shaft and rotates together with the output shaft; and a reduction gear, a gear is combined between the rotor shaft gear and the output shaft gear, and is used for relative to the motor shaft. The rotation speed reduces the rotation speed of the output shaft gear. When the output shaft moves downward, the output shaft is coupled with the top gear of the rotor shaft, the gear coupling between the rotor shaft gear and the reduction gear is released, and the coupling between the output shaft and the output shaft gear is released, thereby transmitting the high-speed rotation of the motor shaft to the output shaft so that the output shaft rotates at a high speed. When the output shaft moves upward, the coupling between the output shaft and the top gear of the rotor shaft is released, the gear coupling between the rotor shaft gear and the reduction gear is released, and the output shaft and the output shaft gear are coupled, thereby reducing the high-speed rotation of the motor shaft through the reduction gear, causing the output shaft gear to rotate, and transmitting the rotation of the output shaft gear to the output shaft so that the output shaft rotates at a speed lower than the speed of the motor shaft.

[0016] Here, it may further include: an output shaft pulley, when an upper module that internally accommodates a rotating mechanism that receives power from the output shaft and rotates is combined above the driving device, the rotating shaft of the rotating mechanism is combined to the output shaft pulley, and the output shaft pulley is combined to the upper end of the output shaft, and the rotating shaft pressurizes the output shaft pulley to move the output shaft downward.

[0017] Here, the hollow part of the output shaft gear for inserting the output shaft can be formed with a step in such a way that the diameter of the lower end is larger than the diameter of the upper end, and an output shaft coupling part is formed at the hollow upper end, and when the output shaft moves upward, the intermediate coupling part formed in the middle part of the output shaft is inserted into and coupled to the output shaft coupling part.

[0018] Here, a gear set may be formed on the outer side surface of the intermediate joint and the inner side surface of the output shaft joint; or, a key protrusion or a key groove may be formed on the outer side surface of the intermediate joint, and a key groove corresponding to the key protrusion formed on the outer side surface of the intermediate joint or a key protrusion corresponding to the key groove formed on the outer side surface of the intermediate joint may be formed on the output shaft joint.

[0019] Here, the invention may further include: a spring for elastically supporting the lower side of the rotor shaft gear.

[0020] Here, the method may further include: a bearing disposed between the output shaft and the output shaft gear.

[0021] Here, the bearing may be arranged on the inner side or the outer side of the lower end portion of the output shaft gear, and the driving device may further include: a spring, which is arranged inside the output shaft gear between the bearing and the step formed in the middle portion of the output shaft, and the spring is used to elastically support the output shaft.

[0022] Here, the invention may further include: a housing which accommodates the driving motor, the output shaft gear, the rotor shaft gear and the reduction gear, wherein the upper end portion of the output shaft protrudes above the housing.

[0023] Here, the reduction gear may include: a first reduction gear gear-coupled with the rotor shaft gear; and a second reduction gear gear-coupled between the first reduction gear and the output shaft gear.

[0024] Here, the first reduction gear and the second reduction gear can be formed into two stages by a first gear group formed on a cylinder with a relatively small radius and a second gear group formed on a cylinder with a relatively large radius, the second gear group of the first reduction gear is gear-coupled with the rotor shaft gear to reduce rotation, the second gear group of the second reduction gear is gear-coupled with the first gear group of the first reduction gear to reduce rotation, and the output shaft gear is gear-coupled with the first gear group of the second reduction gear to reduce rotation.

[0025] Here, a motor shaft coupling guide may be formed axially at the upper portion of the rotor shaft gear, and the motor shaft coupling guide has tooth peaks and tooth valleys formed in the circumferential direction. An output shaft coupling guide corresponding to the motor shaft coupling guide may be formed axially at the lower portion of the output shaft, and the output shaft coupling guide has tooth peaks and tooth valleys formed in the circumferential direction.

[0026] Here, the gear teeth of the rotor shaft gear and the gear teeth of the reduction gear gear-coupled with the rotor shaft gear may be formed to be inclined with respect to the axial direction.

[0027] Here, the gear teeth of the rotor shaft gear and the gear teeth of the reduction gear coupled to the rotor shaft gear are preferably inclined at an angle within 5° relative to the axial direction.

[0028] In addition, the above-mentioned purpose can be achieved by the juicer that can also serve as a blender of the present invention, which includes: any one of the aforementioned driving devices; a stirring module, including a rotating blade that receives power from the output shaft and rotates at high speed, and the stirring module will be installed above the driving device; and a juice extraction module, including a screw that receives power from the output shaft and rotates at low speed, and the juice extraction module will replace the stirring module and be installed above the driving device.

[0029] According to the present invention as described above, since high speed or low speed is achieved by a single output shaft, there is an advantage that the noise and waterproof problems that are generated when high speed and low speed are achieved by dual shafts in the past can be solved.

[0030] In addition, there is an advantage that the output shaft can be driven at high speed or low speed by a high-speed rotating motor, thereby constructing a driving device that serves as both a blender and a juicer. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a perspective view of a driving device for rotating a single output shaft at high speed or low speed according to an embodiment of the present invention.

[0032] Figure 2 Yes means Figure 1 A three-dimensional diagram of the internal structure.

[0033] Figure 3 and Figure 4 It means Figure 2 The clutch in the embodiment is in a state where the clutches are moved upward and downward, respectively.

[0034] Figure 5 and Figure 6 The diagrams respectively show the operations in the low speed mode and the high speed mode.

[0035] Figure 7 It is a perspective view of a driving device for rotating a single output shaft at high speed or low speed according to another embodiment of the present invention.

[0036] Figure 8 Yes means Figure 7 A three-dimensional diagram of the internal structure.

[0037] Fig. 9 and Fig.10 The diagrams respectively show the operations in the low speed mode and the high speed mode.

[0038] Fig.11 The example in which the juice extractor which can also function as a blender according to one embodiment of the present invention is used as a juice extractor is shown.

[0039] Fig.12 The example in which the juice extractor which can also function as a blender according to one embodiment of the present invention is used as a blender is shown.

[0040] Fig.13 FIG. 1 shows a combined state of an output shaft and an output shaft gear according to another embodiment of the present invention.

[0041] Fig.14 FIG. 1 shows a driving device according to another embodiment of the present invention.

[0042] Fig.15 yes Fig.14 An enlarged view of the main part. DETAILED DESCRIPTION

[0043] Detailed description of the embodiments is included in the detailed description and drawings.

[0044] The advantages and features of the present invention and the methods for achieving the advantages and features of the present invention as well as the methods for achieving the advantages and features of the present invention can be clearly understood by referring to the following embodiments described in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and can be implemented in various forms. The present embodiments are only provided to fully disclose the present invention and to fully inform the scope of the invention to those skilled in the art.

[0045] The same reference numerals refer to the same structural elements throughout the specification.

[0046] The present invention will be described below with reference to the accompanying drawings for illustrating a driving device for rotating a single output shaft at high speed or low speed and a juice extractor also serving as a blender using the driving device according to an embodiment of the present invention.

[0047] Figure 1 is a perspective view of a driving device for rotating a single output shaft at high speed or low speed according to an embodiment of the present invention. Figure 2 Yes means Figure 1 A three-dimensional diagram of the internal structure of Figure 3 and Figure 4 It means Figure 2 The clutch in the coupling structure is moved upward and downward respectively. Figure 5 and Figure 6 The diagrams respectively show the operations in the low speed mode and the high speed mode.

[0048] The driving device 100 for rotating a single output shaft at high speed or low speed according to an embodiment of the present invention may be constructed to include a driving motor (not shown), a clutch 110 , a rotor shaft gear 120 , an output shaft 130 , an output shaft gear 140 , and reduction gears 150 , 155 .

[0049] The rotor shaft gear 120, the clutch 110, the output shaft 130, the output shaft gear 140 and the reduction gears 150 and 155 constituting the drive device 100 of the present invention can be arranged inside the housing 180, and the upper end of the output shaft 130 protrudes above the upper part of the housing 180 through the output shaft through hole 182 at the upper part of the housing 180. Although the drive motor is arranged below the housing 180 shown in the drawings (in the drawings, only the motor shaft 102 extending upward from the drive motor is shown inside the housing 180), the drive motor can also be formed to be arranged inside the housing 180 together with the structural elements listed above. In addition, the drive motor can also be arranged inside other housings that are not shown in the drawings except for the housing 180 shown in the drawings.

[0050] The driving motor may be a rotating motor for generating power to rotate the output shaft 130 at high speed or low speed. In this embodiment, the driving motor may be a motor that does not perform speed regulation but only performs high-speed rotation.

[0051] The motor shaft 102 of the driving motor may be inserted into the housing 180 through the motor shaft through hole 184 at the lower portion of the housing 180. At this time, a bearing 185 may be provided between the motor shaft through hole 184 and the motor shaft 102.

[0052] A rotor shaft top gear 105 may be formed at the upper end of the motor shaft 102. When the clutch 110 moves up and down, the rotor shaft top gear 105 may be coupled to or disengaged from the clutch 110, so that the rotational force of the motor shaft 102 may be directly transmitted to the clutch 110 or disengaged from the direct transmission through the rotor shaft top gear 105. The rotor shaft top gear 105 may be formed integrally with the motor shaft 102 or separately.

[0053] The rotor shaft gear 120 can be sleeved on the motor shaft 102 and rotate together with the motor shaft 102, and the lower part is elastically supported and moves up and down along the motor shaft 102. The inner side surface of the insertion hole of the rotor shaft gear 120 can be formed as an angular hole, and the outer side surface of the motor shaft 102 can be formed as an angular shaft corresponding to the angular hole of the rotor shaft gear 120, so that the rotor shaft gear 120 can move up and down along the motor shaft 102 and rotate together with the motor shaft 102. Alternatively, a gear set in a straight line shape can be formed on the inner side surface of the insertion hole of the rotor shaft gear 120 and the outer side surface of the motor shaft 102 along the circumferential direction, and the gears of the two can be combined.

[0054] A spring 122 may be provided between the bottom surface of the rotor shaft gear 120 and the bearing 185 so as to elastically support the rotor shaft gear 120. When the clutch 110, which moves up and down above the motor shaft 102 as described later, moves downward, the lower end of the clutch 110 contacts the upper end of the rotor shaft gear 120, so that the rotor shaft gear 120 can move downward along the motor shaft 102. At this time, elastic force may be stored in the spring 122 supporting the lower side of the rotor shaft gear 120. In addition, when the clutch 110 moves upward, the rotor shaft gear 120 can be restored to the upper side by the elastic force of the spring 122.

[0055] The clutch 110 moves up and down. When the clutch 110 moves downward, the clutch 110 can be combined with the motor shaft 102 and directly receive the power of the motor shaft 102. When the clutch 110 moves upward, the clutch 110 is released from the motor shaft 102, so that the clutch 110 does not directly receive the power from the motor shaft 102, but receives the rotational force of the motor shaft 102 through the reduction gears 150, 155 and the output shaft gear 140 described later.

[0056] The clutch 110 may be formed in a hollow shaft shape. A motor shaft coupling portion 112 may be formed in the middle of the clutch 110 for the rotor shaft top gear 105 to be inserted and coupled. A gear set in a straight line may be formed in the circumferential direction on the inner side surface of the motor shaft coupling portion 112 and the outer side surface of the rotor shaft top gear 105, and gears may be coupled so that the rotor shaft top gear 105 can be coupled to the motor shaft coupling portion 112 after the clutch 110 moves downward, and the rotational force of the motor shaft 102 is transmitted to the clutch 110.

[0057] The hollow below the motor shaft coupling portion 112 may be formed to have a diameter greater than the diameter of the motor shaft coupling portion 112, thereby forming a step 111. Figure 3 As shown in FIG. 1 , when the clutch 110 moves upward, the rotor shaft top gear 105 is located below the step 111 and does not engage with the clutch 110. Figure 4 As shown, when the clutch 110 moves downward, the rotor shaft top gear 105 is inserted into and coupled to the motor shaft coupling portion 112 , so that the rotational force of the motor shaft 102 can be directly transmitted to the clutch 110 .

[0058] The upper end of the clutch 110 can be inserted into or released from the clutch coupling portion 142 formed at the lower end of the output shaft gear 140 described later. When the clutch 110 moves upward, the upper end of the clutch 110 can be inserted into the clutch coupling portion 142 of the output shaft gear 140 to receive the rotational force of the output shaft gear 140 and rotate together with the output shaft gear 140. A gear set in a straight line shape can be formed in the circumferential direction on the outer side surface of the upper end of the clutch 110 and the inner side surface of the clutch coupling portion 142 and gears can be coupled so that the upper end of the clutch 110 can be coupled with the clutch coupling portion 142 after moving upward and transmit the rotational force of the output shaft gear 140 to the clutch 110.

[0059] The lower end of the output shaft 130 may be inserted into and coupled to the hollow of the upper end of the clutch 110. At this time, the insertion depth of the lower end of the output shaft 130 may be different according to the up and down movement of the clutch 110, but the coupling between the clutch 110 and the output shaft 130 will not be released. The inner side surface of the upper end of the clutch 110 may be formed as an angular hole, and the outer side surface of the lower end of the output shaft 130 may be formed as an angular shaft corresponding to the angular hole of the clutch 110, so that the clutch 110 can move up and down along the lower end of the output shaft 130 and transmit the rotational force of the clutch 110 to the output shaft 130. Alternatively, a gear set in a straight line shape may be formed on the inner side surface of the upper end of the clutch 110 and the outer side surface of the lower end of the output shaft 130 in the circumferential direction, and the two gears may be coupled.

[0060] The clutch up-and-down moving part 160 is used to move the clutch 110 up and down. The clutch up-and-down moving part 160 may be constructed to include a clutch housing 162 and an up-and-down driving part 164. The clutch 110 may be automatically moved up and down by using the up-and-down driving part 164. The clutch housing 162 may be fixedly coupled to the clutch 110. The clutch housing 162 extends to one lateral side of the clutch 110, and the up-and-down driving part 164 may be connected to one side of the extension. The up-and-down driving part 164 may be connected to one side of the clutch housing 162 and move the clutch housing 162 up and down. For example, the up-and-down driving part 164 may be composed of a well-known motor such as a linear motor 164. The up-and-down driving part 164 may also be formed by a rotary motor (not shown) and a screw formed on the motor shaft of the rotary motor, and is constructed to move the clutch housing 162 up and down along the screw according to the rotation direction of the motor.

[0061] The upper end of the output shaft 130 protrudes above the housing 180, and a rotating shaft of a rotating mechanism for receiving the rotating force of the output shaft 130 may be coupled to the upper end of the output shaft 130. The rotating mechanism may be a rotating blade of a blender or a screw of a juicer, but is not necessarily limited thereto. The upper end of the output shaft 130 may be formed as an angular shaft or an angular hole so as to be coupled to the rotating shaft of the rotating mechanism and transmit power. For reference, an angular shaft is shown in the figure.

[0062] The lower end of the output shaft 130 is inserted into the hollow of the clutch 110. Alternatively, the configuration may be reversed. That is, the upper end of the clutch 110 may be inserted into the lower end of the output shaft 130. The insertion depth may be different depending on the up and down movement of the clutch 110. A bearing 186 may be provided between the output shaft through hole 182 at the upper portion of the housing 180 and the output shaft 130.

[0063] The output shaft gear 140 may be formed hollow and may be sleeved on the output shaft 130 and rotate. When the clutch 110 moves upward, the clutch 110 may be coupled to the clutch coupling portion 142 at the lower end of the output shaft gear 140, thereby transmitting the rotational force of the output shaft gear 140 to the clutch 110. As described later, the output shaft gear 140 may be decelerated by the reduction gears 150 and 155 and rotate at a low speed, thereby transmitting the rotational force of the output shaft gear 140 to the clutch 110 and the output shaft 130 coupled to the clutch 110, so that the output shaft 130 rotates at a low speed. Figure 3 and Figure 4 As shown, a bearing 187 may be provided between the output shaft gear 140 and the output shaft 130 .

[0064] The reduction gears 150 and 155 may be gear-coupled between the rotor shaft gear 120 and the output shaft gear 140 , thereby being able to reduce the rotation speed of the output shaft gear 140 relative to the rotation speed of the rotor shaft gear 120 coupled to and rotating together with the motor shaft 102 .

[0065] In order to adjust the reduction ratio as needed, the reduction gears 150 and 155 may also be formed by a plurality of reduction gears 150 and 155. In this embodiment, the rotation speed of the motor shaft 102 may be reduced by the first reduction gear 150 and the second reduction gear 155.

[0066] The first reduction gear 150 may be gear-coupled between the rotor shaft gear 120 and the second reduction gear 155, and the second reduction gear 155 may be gear-coupled between the first reduction gear 150 and the output shaft gear 140. At this time, the first reduction gear 150 and the second reduction gear 155 may be gear-coupled to form a two-stage gear set by a first gear set 151, 156 formed on a cylinder with a relatively small radius and a second gear set 152, 157 formed on a cylinder with a relatively large radius. As shown in the figure, the rotor shaft gear 120 may be gear-coupled with the second gear set 152 of the first reduction gear 150. Therefore, according to the gear ratio between the rotor shaft gear 120 and the second gear set 152 of the first reduction gear 150, the first reduction gear 150 may be rotated at a reduced speed relative to the rotor shaft gear 120. In addition, the first gear set 151 of the first reduction gear 150 may be gear-coupled with the second gear set 157 of the second reduction gear 155. Therefore, by the gear ratio between the first gear group 151 of the first reduction gear 150 and the second gear group 157 of the second reduction gear 155, the second reduction gear 155 can be further reduced in rotation relative to the first reduction gear 150. In addition, the first gear group 156 of the second reduction gear 155 can be gear-coupled with the output shaft gear 140. Therefore, due to the gear ratio between the first gear group 156 of the second reduction gear 155 and the output shaft gear 140, the output shaft gear 140 can be further reduced in rotation relative to the second reduction gear 155.

[0067] The upper and lower ends of the first reduction gear 150 and the second reduction gear 155 may be rotatably supported inside the housing 180 , and bearings 188 may be provided between the upper and lower ends of the first reduction gear 150 and the second reduction gear 155 and the housing 180 .

[0068] Below, refer to Figure 5 and Figure 6 , the operation of the output shaft 130 in the low speed mode and the operation in the high speed mode are described.

[0069] When the clutch 110 moves upward, the output shaft 130 may be rotated in a low speed mode, and when the clutch 110 moves downward, the output shaft 130 may be rotated in a high speed mode.

[0070] First, if Figure 5 As shown, in the low speed mode, the clutch up and down moving part 160 (in Figure 5 and Figure 6 In more detail, the clutch housing 162 can be moved upward by the up-and-down driving portion 164, thereby moving the clutch 110 coupled to the clutch housing 162 upward.

[0071] Alternatively, the structure may be such that the rotor shaft gear 120 is pushed upward by the spring 122 when the clutch vertical moving part 160 is not in operation. That is, the structure may be such that the rotor shaft gear 120 is pushed upward by the spring 122 at ordinary times, and when the rotor shaft gear 120 is lowered, the clutch vertical moving part 160 is operated to lower the clutch 110, and the rotor shaft gear 120 is lowered downward while overcoming the compression force of the spring 122.

[0072] If the clutch 110 moves upward, the upper end of the clutch 110 can be coupled to the clutch coupling portion 142 of the output shaft gear 140. In addition, the coupling between the motor shaft coupling portion 112 and the rotor shaft top gear 105 at the upper end of the motor shaft 102 can be released (refer to Figure 3 ). At this time, if Figure 6 As shown, in a state where the rotor shaft gear 120, which is in contact with the lower end of the clutch 110 and is elastically supported, moves downward through the clutch 110, the gear coupling between the rotor shaft gear 120 and the reduction gears 150 and 155 is released, but as the clutch 110 moves upward (see Figure 5 ), the rotor shaft gear 120 moves upward along the motor shaft 102, so that gear coupling can be achieved between the rotor shaft gear 120 and the second gear set 152 of the first reduction gear 150.

[0073] In this way, as the clutch 110 moves upward, the coupling between the rotor shaft top gear 105 and the motor shaft coupling portion 112 of the clutch 110 is released, so that the rotational force of the motor shaft 102 cannot be directly transmitted to the output shaft gear 140, and the rotational force of the motor shaft 102 can be transmitted to the reduction gears 150 and 155 through the rotor shaft gear 120. The output shaft gear 140 can be rotated at a reduced speed relative to the motor shaft 102 by the reduction ratio of the first reduction gear 150 and the second reduction gear 155. Therefore, the rotational force of the output shaft gear 140 can be transmitted to the clutch 110 coupled to the output shaft gear 140 and the output shaft 130 coupled to the clutch 110, so that the output shaft 130 can be rotated at a reduced speed relative to the motor shaft 102 together with the output shaft gear 140.

[0074] On the contrary, Figure 6 As shown, in the high speed mode, the clutch up-down moving part 160 moves the clutch 110 downward. More specifically, the clutch housing 162 can be moved downward by the up-down driving part 164 to move the clutch 110 coupled to the clutch housing 162 downward.

[0075] If the clutch 110 moves downward, the coupling between the upper end of the clutch 110 and the clutch coupling portion 142 of the output shaft gear 140 may be released. At this time, the motor shaft coupling portion 112 and the rotor shaft top gear 105 at the upper end of the motor shaft 102 may be coupled, and the rotational force of the motor shaft 102 is directly transmitted to the clutch 110. At this time, as the clutch 110 moves downward, the rotor shaft gear 120 contacting the lower end of the clutch 110 may move downward along the motor shaft 102, thereby releasing the gear coupling between the rotor shaft gear 120 and the second gear set 152 of the first reduction gear 150.

[0076] In this way, as the clutch 110 moves downward, the rotor shaft top gear 105 and the motor shaft coupling portion 112 of the clutch 110 can be coupled, so that the rotational force of the motor shaft 102 can be directly transmitted to the clutch 110, and the output shaft 130 coupled with the clutch 110 can be rotated at a high speed. At this time, the gear coupling between the rotor shaft gear 120 and the reduction gears 150 and 155 is released, and the coupling between the upper end of the clutch 110 and the clutch coupling portion 142 of the output shaft gear 140 is released, so the rotational force of the motor shaft 102 is not transmitted to the reduction gears 150 and 155 and the output shaft gear 140.

[0077] The drive device 100 of the present invention can be used as the following drive device: the drive device can also serve as a juicer that crushes and squeezes materials such as vegetables or fruits by a low-speed rotating screw to produce juice, and a mixer that crushes or mixes materials by a high-speed rotating rotary blade.

[0078] Therefore, a juice extraction module 20 including a screw rod may be installed above the driving device 100 of the present invention (see Fig.11 ), so that the rotating shaft of the screw can receive power from the output shaft 130 rotating at a low speed to be used as a juicer, or a stirring module 30 including a rotating blade can be replaced and installed (refer to Fig.12 ), so that the rotating shaft of the rotating blade can receive power from the high-speed rotating output shaft 130 to be used as a blender. At this time, it can be automatically sensed that one of the juice extraction module 20 or the blending module 30 is installed above the driving device 100, and according to the type of the installed upper module, the clutch up-and-down moving part 160 automatically moves the clutch 110 up and down.

[0079] Next, a driving device 100 for rotating a single output shaft 130 at high speed or low speed according to another embodiment of the present invention will be described.

[0080] Figure 7 is a perspective view of a driving device for rotating a single output shaft at high speed or low speed according to another embodiment of the present invention, Figure 8 Yes means Figure 7 A three-dimensional diagram of the internal structure of Fig. 9 and Fig.10 The following are diagrams showing the operations in the low speed mode and the high speed mode respectively.

[0081] A driving device 100 for rotating a single output shaft 130 at high speed or low speed according to another embodiment of the present invention may be configured to include a driving motor (not shown), a rotor shaft gear 120 , an output shaft 130 , an output shaft gear 140 , and reduction gears 150 , 155 .

[0082] As in the above-mentioned embodiment, the rotor shaft gear 120, the output shaft 130, the output shaft gear 140 and the reduction gears 150 and 155 constituting the driving device 100 of the present invention can be arranged inside the housing 180, and the upper end of the output shaft 130 protrudes above the upper part of the housing 180 through the output shaft through hole 182 at the upper part of the housing 180. Although the driving motor is arranged below the housing 180 shown in the drawings (in the drawings, only the motor shaft 102 extending upward from the driving motor is shown inside the housing 180), the driving motor can also be formed to be arranged inside the housing 180 together with the structural elements listed above. In addition, the driving motor can also be arranged inside other housings not shown in the drawings other than the housing 180 shown in the drawings.

[0083] The driving motor may be a rotating motor for generating power to rotate the output shaft 130 at high speed or low speed. In this embodiment, the driving motor may be a motor that does not perform speed regulation but only performs high-speed rotation.

[0084] The motor shaft 102 of the driving motor may be inserted into the housing 180 through the motor shaft through hole 184 at the lower portion of the housing 180. At this time, a bearing 185 may be provided between the motor shaft through hole 184 and the motor shaft 102.

[0085] A rotor shaft top gear 105 may be formed at the upper end of the motor shaft 102. When the output shaft 130 moves up and down, the rotor shaft top gear 105 may be coupled or uncoupled with the output shaft 130, so that the power of the motor shaft 102 may be directly transmitted to the output shaft 130 or uncoupled through the rotor shaft top gear 105. Therefore, a gear set (see FIG. 1 ) that is gear-coupled with the rotor shaft top gear 105 may be formed on the inner side surface of the output shaft 130 in the circumferential direction. Fig.14 The rotor shaft top gear 105 may be formed integrally with the motor shaft 102 or separately.

[0086] The rotor shaft gear 120 can be sleeved on the motor shaft 102 and rotate together with the motor shaft 102, and the lower part is elastically supported and moves up and down along the motor shaft 102. The inner side surface of the insertion hole of the rotor shaft gear 120 can be formed as an angular hole, and the outer side surface of the motor shaft 102 can be formed as an angular shaft corresponding to the angular hole of the rotor shaft gear 120, so that the rotor shaft gear 120 can move up and down along the motor shaft 102 and rotate together with the motor shaft 102. Alternatively, a gear set in a straight line shape can be formed on the inner side surface of the insertion hole of the rotor shaft gear 120 and the outer side surface of the motor shaft 102 along the circumferential direction, and the gears of the two can be combined.

[0087] A spring 122 may be provided between the bottom surface of the rotor shaft gear 120 and the bearing 185 so as to elastically support the rotor shaft gear 120. When the output shaft 130 that moves up and down above the motor shaft 102 as described later moves downward, the lower end of the output shaft 130 contacts the upper end of the rotor shaft gear 120, so that the rotor shaft gear 120 can move downward along the motor shaft 102. At this time, the spring 122 for supporting the lower side of the rotor shaft gear 120 can store elastic force. In addition, when the output shaft 130 moves upward, the rotor shaft gear 120 can be restored to the upper side by the elastic force of the spring 122.

[0088] The upper end of the output shaft 130 protrudes above the housing 180, and a rotating shaft of a rotating mechanism for receiving the rotating force of the output shaft 130 may be coupled to the upper end of the output shaft 130. At this time, as shown in the figure, an output shaft pulley 135 may be coupled to the upper end of the output shaft 130. A coupling groove 136 may be formed at the upper end of the output shaft pulley 135, and a rotating shaft of a rotating mechanism for receiving power from the output shaft 130 and rotating may be inserted into the coupling groove 136. The rotating mechanism may be, for example, a rotating blade 320 (see FIG. 1 ) of the stirring module 30. Fig.12) or the screw 230 of the juice extraction module 20 (refer to Fig.11 ).

[0089] When the upper module including the rotating mechanism that receives power from the output shaft 130 and rotates is coupled to the upper part of the main body 10 including the driving device 100, the rotating shaft 232, 322 of the rotating mechanism is coupled to the coupling groove 136 of the output shaft pulley 135, and at this time, the rotating shaft 232, 322 of the rotating mechanism can pressurize the output shaft pulley 135 to move the output shaft 130 coupled to the output shaft pulley 135 downward. That is, according to the lower end position of the rotating shaft 232, 322 of the rotating mechanism included in the upper module coupled to the upper part of the driving device 100, the range of pressurizing the output shaft pulley 135 to move the output shaft 130 downward can be controlled differently.

[0090] The output shaft 130 moves up and down by the installed upper module, so that the rotor shaft gear 120 in contact with the lower end of the output shaft 130 can move up and down along the motor shaft 102 .

[0091] The output shaft gear 140 can be sleeved on the output shaft 130 and rotate. At this time, the hollow of the output shaft gear 140 into which the output shaft 130 is inserted is stepped in such a way that the diameter of the lower end is larger than the diameter of the upper end. Fig. 9 As shown, an output shaft coupling portion 144 may be formed on the hollow upper end portion to couple with the middle portion of the output shaft 130 when the output shaft 130 moves upward. An intermediate coupling portion 132 may be formed at a predetermined position in the middle portion of the output shaft 130, and a gear set in a straight line may be formed in the circumferential direction on the outer side surface of the intermediate coupling portion 132 and the inner side surface of the output shaft coupling portion 144. Therefore, the intermediate coupling portion 132 of the output shaft 130 may be inserted and coupled to the output shaft coupling portion 144 of the output shaft gear 140 through gear coupling. Fig.10 As shown, when the output shaft 130 moves downward, the intermediate joint 132 is located at the hollow lower end, thereby releasing the connection between the output shaft 130 and the output shaft gear 140. On the contrary, when the output shaft 130 moves upward (refer to Fig. 9 ), the intermediate coupling portion 132 moves upward and is inserted into and coupled to the output shaft coupling portion 144, so that the rotational force of the output shaft gear 140 can be transmitted to the output shaft 130. The output shaft gear 140 can be decelerated by the reduction gears 150 and 155 to rotate at a low speed, so the output shaft 130 coupled to the output shaft gear 140 rotates at a low speed.

[0092] A bearing 187 may be provided between the output shaft gear 140 and the output shaft 130. As shown in the figure, the output shaft gear 140 may be formed in a hollow shape with a gear set combined with the reduction gears 150 and 155 formed on the upper outer peripheral surface and extending downward. The bearing 187 may be provided inside the lower end of the output shaft gear 140. In addition, the output shaft 130 may be supported by a spring 138 provided between the bearing 187 and the step 131 of the middle part of the output shaft 130 in the hollow interior of the output shaft gear 140. The output shaft 130 may be moved to the lower side by the upper module installed above the driving device 100, and at this time, the spring 138 may store elastic force. At this time, the output shaft 130 may be restored to the upper side by the elastic force stored in the spring 138.

[0093] The reduction gears 150 and 155 may be gear-coupled between the rotor shaft gear 120 and the output shaft gear 140 , thereby being able to reduce the rotation speed of the output shaft gear 140 relative to the rotation speed of the rotor shaft gear 120 coupled to and rotating together with the motor shaft 102 .

[0094] In order to adjust the reduction ratio as needed, the reduction gears 150 and 155 may also be formed by a plurality of reduction gears 150 and 155. In this embodiment, the rotation speed of the motor shaft 102 may be reduced by the first reduction gear 150 and the second reduction gear 155.

[0095] The structure of the reduction gear composed of the first reduction gear 150 and the second reduction gear 155 is the same as that of the reduction gear in the aforementioned embodiment, and thus a detailed description thereof is omitted.

[0096] Below, refer to Figures 9 and 10 , the operation of the output shaft 130 in the low speed mode and the operation in the high speed mode are described.

[0097] In this embodiment, when the output shaft 130 is located at the upper side, the output shaft 130 can be rotated in a low-speed mode, and when the output shaft 130 is located at the lower side, the output shaft 130 can be rotated in a high-speed mode. Further details are as follows. In the state where the upper module is not combined with the drive device 100, the output shaft 130 is located at the uppermost side by the elastic force of the spring 138. When the upper module is combined with the drive device 100, the rotating shaft 232, 322 of the rotating mechanism will pressurize the output shaft pulley 135, so that the output shaft combined with the output shaft pulley 135 moves downward. At this time, according to the lower end position of the rotating shaft 232, 322 of the rotating mechanism, the range of pressurizing the output shaft pulley 135 to move the output shaft 130 downward is controlled differently. In the case of the low-speed mode, the distance moved downward can be smaller, so that the output shaft 130 is located at the upper side based on the high-speed mode; in the case of the high-speed mode, the distance moved downward can be larger, so that the output shaft 130 is located at the lower side based on the low-speed mode.

[0098] First, if Fig. 9 As shown, in the low speed mode, the output shaft 130 is located at the upper side. At this time, the up and down movement range of the output shaft 130 can be controlled according to the lower end position of the rotating shaft 232 of the rotating mechanism included in the upper module installed on the upper part of the driving device 100. When the rotating shaft 232 of the rotating mechanism is inserted and coupled to the coupling groove 136 formed on the upper part of the output shaft pulley 135, the output shaft 130 elastically supported by the spring 138 can be moved downward by pressurizing the output shaft 130, wherein the output shaft pulley 135 is coupled to the upper end of the output shaft 130. Fig. 9 As shown, the output shaft 130 can be positioned at the upper side by the elastic force of the spring 138 by making the length of the rotating shaft of the rotating mechanism pressurizing the output shaft pulley 135 relatively shorter.

[0099] When the output shaft 130 is located at the upper side, the coupling between the lower end of the output shaft 130 and the rotor shaft top gear 105 can be released. At this time, when the rotor shaft gear 120, which is in contact with the lower end of the output shaft 130 and elastically supported, moves downward through the output shaft 130, the gear coupling between the rotor shaft gear 120 and the reduction gears 150 and 155 is released, but when the output shaft 130 is located at the upper side, the rotor shaft gear 120 moves upward along the motor shaft 102 by the elastic force of the spring 122, so that the rotor shaft gear 120 and the second gear set 152 of the first reduction gear 150 can be gear-coupled.

[0100] In addition, when the output shaft 130 is located at the upper side, the middle coupling portion 132 of the output shaft 130 is inserted and coupled to the output shaft coupling portion 144 of the output shaft gear 140 , thereby being able to transmit the rotational force of the output shaft gear 140 to the output shaft 130 .

[0101] In this way, when the output shaft 130 is located at the upper side, the coupling between the rotor shaft top gear 105 and the lower end of the output shaft 130 is released, so that the rotational force of the motor shaft 102 cannot be directly transmitted to the output shaft 130, and the rotational force of the motor shaft 102 can be transmitted to the reduction gears 150 and 155. The output shaft gear 140 can be rotated at a reduced speed relative to the motor shaft 102 through the first reduction gear 150 and the second reduction gear 155. The rotation of the output shaft gear 140 is transmitted to the output shaft 130 coupled to the output shaft gear 140, and the output shaft 130 can be rotated at a reduced speed at the rotation speed of the output shaft gear 140.

[0102] On the contrary, if Fig.10 As shown in FIG. 1 , in the high speed mode, the output shaft 130 moves downward compared to the low speed mode. Fig. 9 Compared with the case of the low speed mode, the length of the rotating shaft 322 of the rotating mechanism included in the upper module installed above the driving device 100 to press the output shaft pulley 135 can be relatively long, so that the output shaft 130 is located at the lower side compared with the low speed mode. At this time, the spring 138 for supporting the output shaft 130 can store elastic force.

[0103] like Fig.10 As shown, when the output shaft 130 moves downward, the lower end of the output shaft 130 can be coupled with the rotor shaft top gear 105, so that the rotational force of the motor shaft 102 can be directly transmitted to the output shaft 130. At this time, the rotor shaft gear 120, which is in contact with the lower end of the output shaft 130 and is elastically supported, moves downward through the output shaft 130, so that the gear coupling between the rotor shaft gear 120 and the reduction gears 150 and 155 can be released.

[0104] In addition, as the output shaft 130 moves downward, the connection between the output shaft coupling portion 144 of the output shaft gear 140 and the intermediate coupling portion 132 of the output shaft 130 is released, so that when the output shaft 130 rotates, the rotational force is not transmitted to the output shaft gear 140, and therefore the output shaft gear 140 does not rotate.

[0105] In this way, as the output shaft 130 moves downward, the rotor shaft top gear 105 and the lower end of the output shaft 130 are coupled, so that the rotational force of the motor shaft 102 can be directly transmitted to the output shaft 130. At this time, the gear coupling between the rotor shaft gear 120 and the reduction gears 150 and 155 is released, and the coupling between the output shaft 130 and the output shaft gear 140 is released, so that the reduction gears 150 and 155 and the output shaft gear 140 do not rotate.

[0106] Fig.11 The figure shows a case where the juicer which can also serve as a blender according to an embodiment of the present invention is used as a juicer. Fig.12The example in which the juice extractor which can also function as a blender according to one embodiment of the present invention is used as a blender is shown.

[0107] like Fig.11 As shown, when the juicer that can also serve as a blender of the present invention is used as a juicer, a juicer module 20 including a juicer barrel 210, a barrel 220, a screw 230, and a hopper 240 can be installed above the main body including the aforementioned driving device 100. The juicer module 20 constituting the juicer not only has the shape shown in the figure, but can also be deformed into various known shapes. The detailed structure of the juicer module 20 is a known structure, so its detailed description is omitted.

[0108] In addition, if Fig.12 As shown, when the juice extractor which can also serve as a blender of the present invention is used as a blender, Fig.11 The mixing module 30 is installed on the same main body 10 shown in the figure, so as to be used as a mixer, wherein the mixing module 30 includes a mixing drum 310 with a rotating blade 320 installed inside. A known mixer is a device that crushes and mixes the ingredients put into the mixing drum 310 by the rotating blade 320 rotating at a high speed at the lower end of the mixing drum 310, and the meaning of the mixer in the present invention can be widely interpreted as a device that uses the rotating blade 320 rotating at a high speed to process the ingredients.

[0109] exist Fig.11 and Fig.12 As shown in the previous reference Figures 7 to 10 The driving device 100 of the embodiment described above has an output shaft 130 protruding upward from the upper portion of the main body 10, and an output shaft pulley 135 is formed at the upper end of the output shaft 130. Fig.11 As shown in FIG. 1 , when the juice extraction module 20 is mounted on the upper portion of the main body 10, the rotating shaft 232 of the lower portion of the screw is inserted into and coupled to the coupling groove 136 of the output shaft pulley 135, and as shown in FIG. Fig.12 As shown, when the stirring module 30 is mounted on the upper part of the main body 10, the rotating shaft 322 of the lower part of the rotating blade 320 is inserted into and coupled to the coupling groove 136 of the output shaft pulley 135. At this time, according to the difference in the pressurization length between the rotating shaft 232 of the screw and the rotating shaft 322 of the rotating blade, the range in which the rotating shafts 232 and 322 pressurize the output shaft pulley 135 and the output shaft 130 moves downward may be different.

[0110] As described above, when the rotating shaft 322 of the rotating blade 320 is coupled to the output shaft pulley 135 and causes the output shaft 130 to move downward, the driving device 100 can operate in a high-speed mode, and when the rotating shaft 232 of the screw 230 is coupled to the output shaft pulley 135 and causes the output shaft 130 to move downward and is relatively located above, the driving device 100 can operate in a low-speed mode.

[0111] In the following description, various modifications of the aforementioned embodiment will be described.

[0112] Fig.13 It shows the combined state of the output shaft and the output shaft gear of another embodiment of the present invention. In the present invention, the so-called "gear" is not only defined as an ordinary gear (spur gear, helical gear, etc.) with gear teeth densely formed in the circumferential direction. It can be constructed as a spur gear or a helical gear, and as long as it can transmit power, it only needs to have several key protrusions and / or key grooves protruding in the circumferential direction. In the example shown in the figure, four key protrusions 132a protruding toward the radial outside are formed at equal intervals in the circumferential direction on the intermediate joint 132, and correspondingly, four key grooves 144a are also formed at equal intervals in the circumferential direction on the output shaft joint 144. Or conversely, a key groove can be formed on the intermediate joint 132, and a key protrusion corresponding to the key groove can be formed on the output shaft joint 144.

[0113] Fig.14 Hereinafter, the same contents as the above contents will be omitted, and only the contents of the embodiment different from the above embodiment will be described.

[0114] In the power transmission structure connected from the motor shaft 102 to the output shaft gear 140 and the output shaft 130, it is important to maintain a solid support state of each structure during high-speed rotation. To this end, in the present embodiment, the bearings located at the inner upper part of the housing 180 are arranged as two bearings that overlap in the transverse direction. In the illustrated embodiment, the reference numerals of the bearings are "186a" and "186b". By providing these two bearings 186a, 186b, the output shaft 130 and the output shaft gear 140 can be firmly supported on the inside or outside. In particular, since the bearings 186a, 186b are arranged to overlap in the transverse direction, it is possible to obtain a solid support effect while also having the effect of reducing the internal space of the housing 180.

[0115] In addition, the lower portion of the output shaft gear 140 can be firmly supported by providing a fixing frame 180a integrally formed with the housing 180 inside the housing 180 and providing a bearing 187a on the fixing frame 180a. Moreover, the upper portion of the motor shaft 102 can be supported by further providing a bearing 187b on the fixing frame 180a. Fig.14 2 shows an example in which two steps are provided on the inner side of the fixing frame 180a, and bearings 187a and 187b are provided on the upper step and the lower step, respectively.

[0116] Fig.15 yes Fig.14The enlarged view of the main part shows the state in which the gear teeth 120a of the rotor shaft gear 120 and the gear teeth 152a of the second gear set 152 are matched with each other.

[0117] In the present invention, the gear set formed on the radially outer side of the rotor shaft top gear 105 and the gear set 130a formed on the inner side of the output shaft 130 (see Fig.14 ) are coupled to the output shaft 130 and the rotor shaft top gear 105, and the power of the motor shaft 102 is directly transmitted to the output shaft 130. However, in order for the gear set 130a inside the output shaft 130 to move axially and be inserted into the gear set of the rotor shaft top gear 105 to achieve gear coupling when the output shaft 130 descends, it is preferably aligned at a specified position in the circumferential direction. Therefore, in this embodiment, as shown in the figure, a plurality of output shaft coupling guides 130b are formed in the axial direction at the lower part of the output shaft 130 along the circumferential direction, and a motor shaft coupling guide 120b is formed in the axial direction at the upper part of the rotor shaft gear 120 along the circumferential direction, wherein the motor shaft coupling guide 120b corresponds to the output shaft coupling guide 130b. Thus, as the output shaft 130 descends, the output shaft coupling guide 130b and the motor shaft coupling guide 120b are coupled in a sliding manner, while the gear set 130a on the inner side of the output shaft 130 and the gear set on the outer side of the rotor shaft top gear 105 are aligned to a specified position in the circumferential direction, so that when the output shaft 130 descends, the two gear sets can be easily coupled. In the example shown in the figure, an example is shown in which the output shaft coupling guide 130b and the motor shaft coupling guide 120b are formed with a plurality of tooth peaks and tooth valleys in the axial direction. The tooth valleys adjacent to the tooth peaks are in an axially concave shape. The tooth peaks and tooth valleys formed on the output shaft coupling guide 130b and the motor shaft coupling guide 120b are in shapes corresponding to each other and are opposite to each other. Thus, from the time point when the output shaft 130 descends and meets the motor shaft coupling guide 120b, the tooth peaks and tooth valleys are coupled in a sliding manner to allow the output shaft 130 and the motor shaft 102 to be naturally coupled.

[0118] The structure in which the tooth peaks and tooth valleys are formed and the two meet each other can also be applied in the same way in the coupling structure between the motor shaft coupling part 112 and the rotor shaft top gear 105. At this time, although not shown in detail, a clutch coupling guide can be formed along the circumferential direction at the lower part of the clutch 110, and a motor shaft coupling guide can be formed along the circumferential direction at the upper part of the rotor shaft gear 120 in the same manner as the above. The clutch coupling guide is in the form of tooth peaks and tooth valleys formed along the axial direction, and the motor shaft coupling guide is in the form of tooth peaks and tooth valleys formed along the axial direction.

[0119] In addition, in the illustrated embodiment, the gear teeth 120a of the rotor shaft gear 120 and the gear teeth 152a of the second gear set 152 are shown as the gear teeth of a spur gear with a constant cross-section along the axial direction. However, when the motor shaft 102 receives a large torque from the drive motor (not shown), the concentricity of the motor shaft 102 may not be maintained and the motor shaft 102 may be tilted in the lateral direction or squeezed out of the second gear set 152. In order to prevent this phenomenon, the gear teeth 120a of the motor shaft and the gear teeth 152a of the second gear set 152 may be formed to be slightly tilted in opposite directions to each other, such as a helical gear. If the two gear teeth 120a and 152a that match each other are tilted about 5° relative to the axial direction, that is, the axis, the above-mentioned problems can be prevented.

[0120] The scope of the present invention is not limited to the above-mentioned embodiments, and can be implemented by various forms of embodiments within the scope of the attached claims. Within the scope of the spirit of the present invention claimed in the claims, various scopes that can be modified by technicians in the technical field to which the present invention belongs also belong to the scope recorded in the claims of the present invention.

Claims

1. A driving device for rotating a single output shaft at high speed or low speed, characterized in that: include: Drive motor; A clutch moves up and down, engages with a rotor shaft top gear formed on the motor shaft of the driving motor when moving to the downward side, and rotates together with the motor shaft; An output shaft, the lower end of which is coupled to the upper end of the clutch and rotates together with the clutch; An output shaft gear is sleeved on the output shaft and rotates, and when the clutch moves upward, the output shaft gear is combined with the clutch and rotates together with the clutch; a rotor shaft gear, which is sleeved on the motor shaft and rotates together with the motor shaft and is elastically supported, and when the clutch moves downward, the rotor shaft gear contacts the clutch and moves downward; and a reduction gear, the gear being coupled between the rotor shaft gear and the output shaft gear, for reducing the rotation speed of the output shaft gear relative to the rotation speed of the motor shaft, When the clutch moves downward, the rotor shaft top gear is engaged with the clutch, the gear engagement between the rotor shaft gear and the reduction gear is released, and the engagement between the output shaft gear and the clutch is released, thereby transmitting the high-speed rotation of the motor shaft to the clutch and the output shaft, so that the output shaft rotates at a high speed. When the clutch moves upward, the connection between the top gear of the rotor shaft and the clutch is released, the gears between the rotor shaft gear and the reduction gear are connected, and the output shaft gear and the clutch are connected, so that the high-speed rotation of the motor shaft is reduced by the reduction gear, and the output shaft gear is rotated, and the rotation of the output shaft gear is transmitted to the clutch and the output shaft, so that the output shaft rotates at a speed lower than the speed of the motor shaft.

2. The driving device for rotating a single output shaft at high speed or low speed according to claim 1, characterized in that: Further including: The clutch up-and-down moving part is used to move the clutch up and down.

3. The driving device for rotating a single output shaft at high speed or low speed according to claim 2, characterized in that: The clutch up and down moving part comprises: a clutch housing, combined with the clutch; and The up-and-down driving part is connected to one side of the clutch housing and is used for moving the clutch housing up and down.

4. The driving device for rotating a single output shaft at high speed or low speed according to claim 1, characterized in that: Further including: A spring is used to elastically support the lower side of the rotor shaft gear.

5. The driving device for rotating a single output shaft at high speed or low speed according to claim 1, characterized in that: Further including: A bearing is arranged between the output shaft and the output shaft gear.

6. The driving device for rotating a single output shaft at high speed or low speed according to claim 1, characterized in that: The invention further comprises: a housing, which contains the driving motor, the clutch, the output shaft gear, the rotor shaft gear and the reduction gear. An upper end portion of the output shaft protrudes above the housing.

7. The driving device for rotating a single output shaft at high speed or low speed according to claim 1, characterized in that: The reduction gear includes: a first reduction gear gear-coupled with the rotor shaft gear; and a second reduction gear gear-coupled between the first reduction gear and the output shaft gear.

8. The driving device for rotating a single output shaft at high speed or low speed according to claim 7, characterized in that: The first reduction gear and the second reduction gear are formed into two stages by a first gear set formed on a cylinder with a relatively small radius and a second gear set formed on a cylinder with a relatively large radius. The second gear set of the first reduction gear is gear-coupled with the rotor shaft gear to reduce rotation, the second gear set of the second reduction gear is gear-coupled with the first gear set of the first reduction gear to reduce rotation, and the output shaft gear is gear-coupled with the first gear set of the second reduction gear to reduce rotation.

9. A driving device for rotating a single output shaft at high speed or low speed, characterized in that: include: Drive motor; A rotor shaft gear is sleeved on the motor shaft of the driving motor and rotates together with the motor shaft, and is elastically supported and moves up and down; An output shaft moves up and down above the motor shaft, and when moving downward, it is coupled with a rotor shaft top gear formed on the motor shaft and rotates together with the motor shaft, and causes the rotor shaft gear to move downward; an output shaft gear, sleeved on the output shaft and rotating, wherein when the output shaft moves upward, the output shaft gear is coupled with the output shaft and causes the output shaft to rotate together; and a reduction gear, the gear being coupled between the rotor shaft gear and the output shaft gear, for reducing the rotation speed of the output shaft gear relative to the rotation speed of the motor shaft, When the output shaft moves downward, the output shaft is coupled with the top gear of the rotor shaft, the gear coupling between the rotor shaft gear and the reduction gear is released, and the coupling between the output shaft and the output shaft gear is released, thereby transmitting the high-speed rotation of the motor shaft to the output shaft, so that the output shaft rotates at a high speed. When the output shaft moves upward, the connection between the output shaft and the top gear of the rotor shaft is released, the rotor shaft gear and the reduction gear are gear-coupled, and the output shaft and the output shaft gear are coupled, so that the high-speed rotation of the motor shaft is decelerated by the reduction gear, and the output shaft gear is rotated, and the rotation of the output shaft gear is transmitted to the output shaft, so that the output shaft rotates at a speed lower than the speed of the motor shaft.

10. The driving device for rotating a single output shaft at high speed or low speed according to claim 9, characterized in that: Further including: The output shaft pulley is a pulley that receives power from the output shaft and rotates. When the upper module that accommodates the rotating mechanism is coupled to the upper part of the driving device, the rotating shaft of the rotating mechanism is coupled to the output shaft pulley, and the output shaft pulley is coupled to the upper end of the output shaft. The rotating shaft presses the output shaft pulley to move the output shaft downward.

11. The driving device for rotating a single output shaft at high speed or low speed according to claim 10, characterized in that: The hollow portion of the output shaft gear for inserting the output shaft is formed with a step in such a way that the diameter of the lower end portion is larger than the diameter of the upper end portion, and an output shaft coupling portion is formed at the hollow upper end portion. When the output shaft moves upward, the intermediate coupling portion formed at the middle portion of the output shaft is inserted into and coupled to the output shaft coupling portion.

12. The driving device for rotating a single output shaft at high speed or low speed according to claim 11, characterized in that: A gear set is formed on the outer side surface of the intermediate joint portion and the inner side surface of the output shaft joint portion; or, A key protrusion or a key groove is formed on the outer side surface of the intermediate joint, and a key groove corresponding to the key protrusion formed on the outer side surface of the intermediate joint or a key protrusion corresponding to the key groove formed on the outer side surface of the intermediate joint is formed on the output shaft joint.

13. The driving device for rotating a single output shaft at high speed or low speed according to claim 9, characterized in that: Further including: A spring is used to elastically support the lower side of the rotor shaft gear.

14. The driving device for rotating a single output shaft at high speed or low speed according to claim 9, characterized in that: Further including: A bearing is arranged between the output shaft and the output shaft gear.

15. The driving device for rotating a single output shaft at high speed or low speed according to claim 14, characterized in that: The bearing is arranged on the inner side or the outer side of the lower end portion of the output shaft gear. The driving device further includes a spring, which is arranged inside the output shaft gear between the bearing and a step formed at a middle portion of the output shaft, and is used to elastically support the output shaft.

16. The driving device for rotating a single output shaft at high speed or low speed according to claim 9, characterized in that: The invention further comprises: a housing, which contains the driving motor, the output shaft gear, the rotor shaft gear and the reduction gear. An upper end portion of the output shaft protrudes above the housing.

17. The driving device for rotating a single output shaft at high speed or low speed according to claim 9, characterized in that: The reduction gear includes: a first reduction gear gear-coupled with the rotor shaft gear; and a second reduction gear gear-coupled between the first reduction gear and the output shaft gear.

18. The driving device for rotating a single output shaft at high speed or low speed according to claim 17, characterized in that: The first reduction gear and the second reduction gear are formed into two stages by a first gear set formed on a cylinder with a relatively small radius and a second gear set formed on a cylinder with a relatively large radius. The second gear set of the first reduction gear is gear-coupled with the rotor shaft gear to reduce rotation, the second gear set of the second reduction gear is gear-coupled with the first gear set of the first reduction gear to reduce rotation, and the output shaft gear is gear-coupled with the first gear set of the second reduction gear to reduce rotation.

19. The driving device for rotating a single output shaft at high speed or low speed according to claim 9, characterized in that: A motor shaft coupling guide is formed on the upper portion of the rotor shaft gear in the axial direction, and the motor shaft coupling guide is formed with tooth peaks and tooth valleys in the circumferential direction. An output shaft coupling guide corresponding to the motor shaft coupling guide is formed at the lower portion of the output shaft in the axial direction, and the output shaft coupling guide is formed with tooth peaks and tooth valleys in the circumferential direction.

20. The driving device for rotating a single output shaft at high speed or low speed according to claim 9, characterized in that: The gear teeth of the rotor shaft gear and the gear teeth of the reduction gear gear-coupled with the rotor shaft gear are formed to be inclined with respect to the axial direction.

21. The driving device for rotating a single output shaft at high speed or low speed according to claim 20, characterized in that: The gear teeth of the rotor shaft gear and the gear teeth of the reduction gear coupled to the rotor shaft gear are inclined at an angle within 5° relative to the axial direction.

22. A juicer that can also serve as a blender, characterized in that: include: A drive device as claimed in any one of claims 1 to 21; A stirring module, comprising a rotating blade receiving power from the output shaft and rotating at a high speed, the stirring module will be installed above the driving device; and The juice extraction module comprises a screw which receives power from the output shaft and rotates at a low speed. The juice extraction module will replace the stirring module and be installed above the driving device.

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