TW201425684A - Linkage variable speed power mechanism - Google Patents

Abstract

The invention mainly provides a linkage variable speed power mechanism which comprises a driving device having a first and second driving motors; a passive driven set disposed with a sliding bock, a lead screw, and a rotary disc, wherein the lead screw is laterally connected pivotally to the sliding block and pivotally connected to the second driving motor, the transmission shaft of the first driving motor passes through the sliding block, the rotary disc is disposed above the sliding block and pivotally connected to the transmission shaft; and a four-linkage set disposed with a first and second connection rods, one end of the first connection rod is pivotally connected to the rotary disc while the other end is pivotally connected to the second connection rod, another end of the second connection rod has an output pivot shaft, the output pivot shaft passes through the top plate and is pivotally connected to a washing machine drum. With the foregoing components, a variable distance is formed between the transmission shaft and the output pivot shaft to have variable rod length of the four linkages, so that the motion variation of the four-linkage set provides continuous revolution and swing with a variable speed, and the driving motor is collaborated to perform the continuous revolution and the positive/reverse rotation to drive the drum to perform different types of clothes washing strokes. The whole invention belongs to a mechanism design to achieve the high performance, low costs and energy saving effect.

Description

Link type variable speed power mechanism

The invention relates to a link type variable speed power mechanism, in particular to a variable rod length four-link design, which belongs to a pure mechanical design and can drive a washing machine drum washing movement to achieve high performance, low cost and energy saving effect. Power mechanism.

The washing machine is an indispensable laundry equipment in people's life. It can perform automatic washing, water washing and dehydrating functions. Some washing machines are further equipped with drying function, which effectively replaces the inconvenience of hand washing clothes and provides people with life. Great convenience and practicality.

The structure of the washing machine comprises an organic body, a water tank, a drum arranged in the water tank, a control device, a power mechanism for driving the drum to rotate, and an inlet and outlet device for controlling the water in and out of the washing water in the water tank, and is controlled by the control device. A series of washing and dehydrating operations, when the washing operation is performed, the motor is outputted with low speed and high torque by the power mechanism, and the motor is outputted with high speed and low torque during the dehydrating operation. The various washing modes such as quick washing, slow washing, and soft washing are provided, and the washing speed is controlled by using different washing modes to increase the washing power.

The structure of the washing machine controls the speed of the power mechanism, and the common ones can be roughly divided into a pulley type and a frequency conversion type.

According to the conventional pulley-type power mechanism, such as the invention of No. 095131743 The "drum type washing machine" disclosed in the patent is characterized in that, in controlling a high-temperature washing course in which the heating device heats washing water for washing, the control device performs control such that the washing water becomes The rotation operation rate of the rotary drum in the first agitation stroke before the second predetermined temperature at which the first predetermined temperature is low is controlled to be higher than the first predetermined temperature from the second predetermined temperature. The rotation operation rate of the rotary drum in the second stirring stroke is small, but the rotation operation rate is defined as follows: the rotation operation rate = the stirring time of the rotary drum ÷ the rotation drum (stop time + stirring time) .

Another conventional variable frequency power mechanism, such as the "inverter of the washing machine" disclosed in the Japanese Patent No. 097142864, is placed on a washing machine that uses a rotational driving force generated by a permanent magnet motor to perform the washing operation to control the above permanent In the magnet motor, the permanent magnet motor includes a rotor magnet on the rotor side, and the first permanent magnet and the coercive force are smaller than the first permanent magnet, and have a coercive force capable of easily changing the level of the magnetization amount. a permanent magnet; a position detecting means for detecting a rotational position of the rotor; a magnetizing current 俾 for changing a magnetization amount of the second permanent magnet; and a dehydrating operation for reducing a magnetic flux of the rotor magnet When the operation is performed, if the maximum number of rotations is set lower than the operation of the dehydration operation, the operation is performed while the magnetic flux of the rotor magnet is increased, and the second permanent is changed while the rotation of the permanent magnet motor is stopped. When the magnetization amount of the magnet is changed, the position of the rotation of the rotor is stopped. Said magnetizing current of the phase change of the amount of magnetization.

In the above configuration, the former is a high-temperature washing stroke in which the rotation of the motor is transmitted to the rotating shaft through the driving pulley to drive the rotating drum to rotate, and the washing water is heated by the heater to the first predetermined temperature or higher and then washed. The first stirring stroke and the second stirring stroke are divided into three, and the stirring is performed in the first stirring stroke of the first half until the predetermined temperature is reached in the high-temperature washing stroke, so that the motor that drives the rotation of the rotating drum can be reduced. The load prevents the driving failure caused by the temperature rise; the latter sets the rotor magnet on the rotor side of the permanent magnet motor, and changes the magnetization amount of the second permanent magnet to achieve variable frequency control, so that the output characteristics of the permanent magnet motor are optimal. The effect of driving motor output rotation, washing operation and dehydration operation.

However, the former is composed of pulleys and gears, which can only be rotated at a constant speed. The relative speed of clothes and washing water is low, the washing ability needs to be strengthened, the washing time is long, the energy consumption, the water and washing dose are large, and the clothes are easy to wear. Knotted damage, noise and vibration problems, so the power quality of the power mechanism is poor and the utility is not good; the latter can be freely changed back to the speed to increase its cleaning ability, and different washing modes can be adopted according to different fabrics to reduce power consumption. When the return speed is increased, the vibration is reduced, the noise is less, and the laundry quality is better, but the design threshold and the manufacturing cost are higher; therefore, the inventors provide a power mechanism that changes the link speed and reduces the manufacturing cost.

In view of the above, the link type variable speed power mechanism disclosed in the present invention is mounted on a washing machine to drive a drum inside the washing machine for washing operation. The power mechanism comprises: a base, which is provided with two side plates and a top plate. The bottom plate is disposed at the bottom of the interior of the washing machine, and the top plate is disposed above the two side plates; a driving device includes a first driving motor and a second driving motor; and a driven group is composed of a slider, a lead screw and a turntable, the slider is disposed between the two side plates, the lead screw is pivotally connected to the slider, and the two ends thereof are respectively pivotally connected to the two side plates, the first a drive shaft of the drive motor is pivotally connected to the slider, and the second drive motor is pivotally connected to the lead screw, and the turntable is disposed above the slider and pivotally connected to the drive shaft; a first connecting rod and a second connecting rod are disposed. One end of the first connecting rod is pivotally connected to the preset position of the circumference of the turntable, and the other end is pivotally connected to the second connecting rod, and the second connecting rod is further connected to the second connecting rod. The end is provided with an output pivot, which is arranged to pivot the output pivot The top plate is preset at a position, and the output pivot is pivotally connected to the roller, a variable fixing rod is formed between the transmission shaft and the output pivot, and has a variable distance, and the transmission shaft and the first A crank is formed between the pivotal joints of the connecting rods, the first connecting rod, the second connecting rod, the variable fixing rod and the crank form a four-bar linkage, and the four-link fixing rod length can be changed; The driving device drives the distance between the transmission shaft and the output pivot to change the length of the rod, and drives the displacement of the slider, so that the four-bar linkage actuation changes with continuous rotation and swing of the variable speed, and cooperates with the first driving The motor rotates continuously and forwards and reverses to drive the drum All kinds of laundry movements, the overall mechanical design, assembly and maintenance is easy, up to high performance, low cost and energy saving effect.

One of the objects of the present invention is to provide a link type variable speed power mechanism that uses a drive motor to drive a variable link length four-link set to provide a variable speed power output power structure, and can provide various laundry strokes. It is a purely mechanical design that is easy to assemble and maintain, effectively reducing manufacturing costs.

The second object of the present invention is to provide a link type variable speed power mechanism, which can flexibly adjust the power output of the drive motor drive shaft according to different laundry requirements, and exhibit a single revolutionary high frequency variable speed continuous rotation or continuous variable speed swing motion. Features to enhance transmission efficiency.

The third object of the present invention is to provide a link type variable speed power mechanism, which can increase the relative speed of clothes and washing water by variable speed output of various motion stroke curves, thereby effectively enhancing the cleaning ability and energy saving effect. .

The fourth object of the present invention is to provide a link type variable speed power mechanism which can be applied to a mixer, a juice machine or other various structures having a stirring effect.

First, please refer to the first to fourth figures. The link type variable speed power mechanism provided by the present invention is mainly disposed at the bottom of the washing machine (10), and the washing machine (10) includes one of the inside of the washing machine (10). Sink (11), located in the a drum (12) in the water tank (11), a control device (13), and a power mechanism (20) for driving the drum (12) to rotate, and the control device (13) performs washing and dehydration operations. The power mechanism (20) includes a base (21), a driving device (30), a driven group (40), and a four-link group (50).

The base (21) includes a bottom plate (22), two side plates (23), and a top plate (24). The bottom plate (22) is attached to the bottom of the washing machine (10), and the two side plates (23) are They are respectively disposed on two sides above the bottom plate (22), and the top plate (24) is disposed above the two side plates (23).

The driving device (30) comprises a first driving motor (31) and a second driving motor (32), which are all general-purpose reducer motors.

The driven group (40) is composed of a slider (41), a lead screw (42), two guiding rods (43), and a turntable (44), and the slider (41) is set at two Between the side plates (23), the lead screw (42) is laterally disposed to be pivotally connected to the center of the slider (41), and the two ends thereof are respectively pivotally connected to the two side plates (23), and the second driving motor (32) ) is disposed at a central portion of the outer side of the one side plate (23), and is configured to pivotally connect the second driving motor (32) and the lead screw (42); the first driving motor (31) is disposed on the slider (41) a bottom portion, and a drive shaft (P1) is longitudinally disposed to be pivotally connected to the slider (41); the two guide rods (43) are respectively laterally disposed on two sides of the slider (41), and the two ends thereof respectively The two side plates (23) are fixedly connected to each other; the turntable (44) is disposed above the slider (41), and a pivoting portion (442) is disposed at the bottom of the center (441), and the first driving motor (31) The drive shafts (P1) are pivotally connected to each other such that the turntable (44) is coupled with the drive motor (31), and the turntable (44) can be driven to rotate by the drive shaft (P1).

The four-link set (50) includes a first connecting rod (51) and a second connecting rod (52). One end of the first connecting rod (51) is pivotally connected to a preset position of the circumference of the turntable (44). a first pivoting point (A) is formed, and the other end of the first connecting rod (51) is pivotally connected to the second connecting rod (52), and a pivotal joint between the two is provided with a second pivoting point (B). The second connecting rod (52) is longitudinally provided with an output pivot (P2) disposed such that the output pivot (P2) is disposed at a predetermined position of the top plate (24) and the output pivot ( P2) is pivotally connected to the drum (12); a variable fixing rod (53) is formed between the transmission shaft (P1) and the output pivot (P2) and has a variable first distance (R1), the transmission shaft (P1) forms a crank (54) with the first pivot point (A) and has a second distance (R2), and the first pivot point (A) and the second pivot point (B) have a a third distance (R3), the second pivot point (B) and the output pivot (P2) have a fourth distance (R4); then the first connecting rod (51), the second connecting rod (52) The variable fixing rod (53) and the crank (54) are formed to form a four-bar linkage mechanism; the four-link group (50) is driven by the driving device (30) to make the The first distance (R1) between the moving shaft (P1) and the output pivot (P2) is changed as the length of the rod, and the axial displacement of the slider (41) relative to the lead screw (42) is transmitted, so that the four links can be made. The rod group (50) is changed to change the rotation speed and the swing, and is continuously rotated and positively and reversely rotated with the first driving motor (31) to drive the drum (12) to provide a slow return, quick return, and quick return. Swing and other sports characteristics, effectively achieve the purpose of washing clothes.

With the above-mentioned members, the driving device (30) is used to drive the slider (41) to move and the turntable (44) to rotate, and the four-link group (50) is driven to make the power input of the transmission shaft (P1) and the power output. The distance between the output pivots (P2) Long change, the four-bar linkage (50) can be changed to change the speed and swing, provide a variety of sports performance curve laundry mode, increase the relative speed of clothes and laundry water, can enhance the cleaning ability, and achieve energy-saving effect It is purely mechanical design, easy to assemble and maintain, and has high performance and low cost, so the overall structure is very innovative and convenient.

In order to further understand the structural features, technical means and desired effects of the present invention, the mode of use of the present invention will be described as follows: The present invention is to pivot the lead screw (42) and the guide rod (43). After the slider (41) is disposed between the two side plates (23), the turntable (44) is disposed above the slider (41) to make the first drive motor (31) drive shaft (P1) and the turntable ( 44) pivotally, then pivoting the second driving motor (32) with the lead screw (42), and then pivoting the first connecting rod (51) and the second connecting rod (52) to make the first The other end of the connecting rod (51) is pivotally connected with the turntable (44) to link the turntable (44) with the driving motor (31), and the other connecting rod (52) of the second connecting rod (52) is pivotally connected. After the top plate (24), and pivoted to the drum (12) of the washing machine (10), the assembly is completed.

For the use of the present invention, please refer to the fifth to seventh figures, the first drive motor (31) is used to drive the turntable (44) to rotate, to drive the four-link set (50) to act, and then to cooperate with the second drive. The motor (32) drive lead screw (42) moves the slider (41), please refer to the eighth to twelfth drawings, and at the same time, the first drive motor (31) drive dial (44) is used to drive the four-link group ( 50) actuating, the first distance (R1) of the transmission shaft (P1) and the output pivot (P2) is changed as a rod length; when the first distance (R1) is the shortest in the mechanism, the mechanism is double cranked The four-bar linkage mechanism can obtain the output pivot (P2) variable speed swing output; when the first distance (R1) is greater than the second distance (R2), the mechanism becomes a crank rocker mechanism, and an emergency return can be obtained. The variable-speed rocking motion of the non-equal or near-symmetric motion speed, combined with the lead screw (42) for stepless speed change, makes the speed change more.

Applying the method of changing the first distance (R1), the change four-link set (50) is a combination of a double crank or a crank swing mechanism, and can provide five kinds of laundry performance curves, combined with the motion program and motion of each laundry performance curve. The characteristics are analyzed as follows:

1. Single-turn rotary low-speed ratio laundry performance curve: the lead screw (42) is driven by the second drive motor (32) to move the slider (41) to a first preset distance (D1) Stopping, the first preset distance (D1) is the first distance (R1) that is variable, and then the first driving motor (31) drives the crank (54) at an equal angular velocity to drive the first connecting rod (51). And the second connecting rod (52), the output pivot (P2) is outputted to each of the single turns for the angular velocity of the low speed ratio output, and the mechanism diagram is as shown in FIG.

Second, the single-turn high-speed ratio laundry performance curve: the second drive motor (32) drives the lead screw (42) to move the slider (41) to a second preset distance (D2) Stopping, the second preset distance (D2) is the first distance (R1) that is variable, and then the first driving motor (31) drives the crank (54) at an equal angular velocity to drive the first connecting rod (51). And the second connecting rod (52), the output pivot (P2) is outputted to each of the single turns for the angular velocity of the high speed ratio output, and the mechanism diagram is as shown in FIG.

3. Slowly returning to the swinging laundry performance curve: the lead screw (42) is driven by the second driving motor (32) to move the slider (41) to a third preset distance (D3) and then stop. The third preset distance (D3) is the first distance (R1) that is variable, and then the first driving motor (31) drives the crank (54) to drive the first connecting rod (51) and the second connecting rod. (52), during which the crank (54) swings slowly from the right dead point (B) to the left dead point (B ' ), and then quickly returns to the right dead point (B) as a preset angle (θ1) to sway, complete The first drive motor (31) rotates each revolution, and its mechanism diagram is as shown in the fifteenth diagram.

4. Slowly go back to the swinging laundry performance curve: the second driving motor (32) drives the lead screw (42) to move the slider (41) to a fourth preset distance (D4). Stopping, the first preset distance (D1) is the first distance (R1) that is variable, and then the first driving motor (31) drives the crank (54) to drive the first connecting rod (51) and the second link. The rod (52), during which the second connecting rod (52) is slowly swung from the right dead point (B) to the left dead point (B ' ), and then returns to the right dead point (B) a predetermined angle ( Θ2) Swing, the operation of each revolution of the first drive motor (31) is completed, and the mechanism diagram is as shown in FIG.

5. The near-symmetric dynamic speed swinging laundry performance curve: the lead screw (42) is driven by the second driving motor (32) to move the slider (41) to a fifth preset distance (D5) and then stop. The fifth preset distance (D5) is the first distance (R1) that is variable, and then the first driving motor (31) drives the crank (54) to drive the first connecting rod (51) and the second connecting rod. (52), during which the second connecting rod (52) returns from the right dead point (B) to the left dead point (B ' ) at a near-symmetric movement speed, and then returns to the right dead point (B) for a predetermined angle (θ3) Swinging, the operation of each revolution of the first drive motor (31) is completed, and the mechanism diagram is as shown in FIG.

The above is the motion characteristic of each type of laundry performance curve of the present invention, and can be elastically mixed and matched according to the laundry process required for each garment; wherein D1 < D2 < D3 < D4 < D5, θ1 > θ2 > θ3.

Designed by the above-mentioned mechanism, the computer-aided design application software can be used to establish a 3D model of the linkage type shifting mechanism, and perform motion numerical simulation analysis to obtain the angular displacement, angular velocity and angular acceleration of the output output pivot (P2). The performance curve of each laundry with time is as follows:

First, the numerical simulation analysis of each laundry performance curve:

1. Single-turn rotary low-speed ratio laundry performance curve: set the input shaft (P1) to rotate one revolution at an equal angular speed of 180 deg/s (RPM=30), and output the output pivot (P2). Curves, including: angular displacement, angular velocity, and angular acceleration and time plots, as shown in Figure 18.

2, single-turn high-speed ratio laundry performance curve: set the input shaft (P1) to rotate at an equal angular speed of 180 deg / s, the output of the output pivot (P2) motion performance curve, including: angle Displacement, angular velocity and angular acceleration versus time diagram, as shown in Figure 19.

3. Slowly return to the swinging laundry performance curve: set the input shaft (P1) to rotate one revolution at an equal angular velocity of 180 deg/s, and output the output pivot (P2) motion performance curve, including: angular displacement , angular velocity and angular acceleration and time diagram, as shown in the twentieth.

4, slow down a little faster back to the swing laundry performance curve: set the input of the pass The moving shaft (P1) is rotated one revolution at an equal angular velocity of 180 deg/s, and the output pivot (P2) motion performance curve of the output shaft includes: angular displacement, angular velocity, angular acceleration and time map, as shown in FIG. Show.

5. Near-symmetric motion speed swinging laundry performance curve: set the input shaft (P1) to rotate one revolution at an equal angular velocity of 180 deg/s, and output the output pivot (P2) motion performance curve, including: angular displacement , angular velocity and angular acceleration and time diagram, as shown in Figure 22.

Second, the comparison of the motion characteristics of each laundry performance curve:

(1) Angular displacement-time motion performance curve:

The angular displacement-time diagram of the variable speed motion output output pivot (P2), the performance curves of which are described as follows:

1. Double crank mechanism: set the input drive shaft (P1) to rotate at an equal angular speed of 180 deg/s, and the output output pivot (P2) has a single-turn rotary low-speed ratio than the laundry performance curve and the single-turn high speed. The angular displacement versus time plot of the specific motion performance curve, as shown in Figure 23.

2, crank rocker mechanism: set the input drive shaft (P1) to rotate at an equal angular speed of 180 deg / s, the output of the output pivot (P2) slow to return to the swing laundry performance curve, slow to go back slightly The angular displacement and time diagram of the swing laundry motion performance curve and the near-symmetric motion velocity swing laundry motion performance curve are shown in FIG.

(2) Angular velocity-time motion performance curve

The angular velocity-time diagram of the variable speed motion output output pivot (P2), the performance curves of which are described as follows:

1. Double crank mechanism: set the input drive shaft (P1) to rotate at an equal angular speed of 180 deg/s, and the output output pivot (P2) has a single-turn rotary low-speed ratio than the laundry performance curve and the single-turn high speed. An angular velocity versus time plot of the laundry performance curve, as shown in Figure 25.

2, crank rocker mechanism: set the input drive shaft (P1) to rotate at an equal angular speed of 180 deg / s, the output of the output pivot (P2) slow to return to the swing laundry performance curve, slow to go back slightly The angular velocity and time diagram of the swing laundry performance curve and the near-symmetric motion velocity swing laundry performance curve are shown in Figure 26.

(3) Angular acceleration-time motion performance curve

The angular acceleration-time diagram of the variable speed motion output output pivot (P1), the performance curves of which are described as follows:

1. Double crank mechanism: set the input drive shaft (P1) to rotate at an equal angular speed of 180 deg/s, and the output output pivot (P2) has a single-turn rotary low-speed ratio than the laundry performance curve and the single-turn high speed. An angular acceleration versus time plot of the performance curve of the laundry, as shown in Figure 27.

2, crank rocker mechanism: set the input drive shaft (P1) to rotate at an equal angular speed of 180 deg / s, the output of the output pivot (P2) slow to return to the swing laundry performance curve, slow to go back slightly The angular acceleration and time diagram of the swinging laundry performance curve and the near-symmetric motion velocity swinging laundry performance curve are shown in Fig. 28.

(4) Angular acceleration-time motion performance curve of each laundry performance curve

The angular acceleration time comparison of each laundry performance curve, as shown in the twenty-ninth figure, is known from the figure, the single-turn high-speed ratio and the slow-to-fast-back swing laundry performance curve have large angular acceleration changes, laundry The relative speed of clothes and laundry water changes greatly.

In conjunction with the laundry integration performance of the laundry performance curve of the link type variable speed power mechanism of the present invention, the following describes the various types of laundry strokes:

1. Soft washing laundry stroke: For the wool clothing use, a gentle washing stroke is required, and the near-symmetric movement speed swing and the single-turn rotation low-speed laundry performance curve are used, and the first driving motor (31) is continuously rotated.

2, blanket laundry stroke: for blankets, heavy clothing use, use slow to fast back swing and single-turn rotary low speed than laundry performance curve, with the first drive motor (31) continuous rotation, give a powerful twist to wash .

3, standard laundry stroke: for general clothing use, using near-symmetric movement speed swing and single-turn high-speed than laundry performance curve, with the first drive motor (31) continuous rotation and positive, reverse, to achieve the cleaning effect .

4, fast laundry stroke: for saving laundry time, use slower to go back slightly swing and single-turn high speed than laundry performance curve, with the first drive motor (31) continuous rotation, to strengthen clothing and laundry 搓Twist the cleanliness and save time on laundry.

5, dirty laundry stroke: for the use of dirty clothing, the use of slow to fast back swing and single-turn high speed than the laundry performance curve, with the first drive motor (31) continuous rotation and positive, reversal, greatly increased Clothes and wash The relative speed of the clothing water flow effectively achieves the purpose of washing clothes.

The following is an example of a standard laundry stroke actuation procedure:

1. First, the second driving motor (32) is driven to drive the lead screw (42), and the slider (41) is moved to a preset distance and then stopped.

2. The first driving motor (31) is started to rotate clockwise, and the washing speed is rotated at a variable angular speed of the output speed of each single turn. After the preset time, the first driving motor (31) is counterclockwise. Swing, so that the water flow of the washing water produces turbulent flow and increase its relative speed, improve the washing effect, turn clockwise after the preset time by reverse time, repeat the clockwise and counterclockwise rotation several times and stop.

3. Start the second driving motor (32) to drive the lead screw (42), move the slider (41) to another preset distance, and then stop, start the first driving motor (31), and the washing speed is at a preset angle. The sway of the near-symmetric movement speed allows the clothes to be repeatedly and evenly twisted and washed, and the first drive motor (31) is continuously rotated. This is the standard laundry stroke laundry operation program.

Furthermore, the first distance (R1) can be adjusted to 0 mm to complete the purpose of the equal speed movement of the washing machine (10) during dehydration.

The power mechanism of the present invention drives the variable link length four-link set (50) by the first drive motor (31) of the drive device (30), and uses the second drive motor drive (32) to move the slider (41) Displacement, providing a variable-speed power output linkage-type variable-speed washing machine power mechanism, with its variable rod length design, can obtain single-turn high-speed ratio output and single-turn rotary low-speed ratio output, and Has slow to go back, slow to go back slightly, and near symmetrical motion speed Different performance curves can be provided for various types of laundry strokes. It is a purely mechanical design, easy to assemble and maintain, and can effectively reduce manufacturing costs. It is innovative, practical and cost-effective. It can be flexible according to different laundry requirements. Adjusting the power output of the drive shaft (P1) of the first drive motor (31), and exhibiting the motion characteristics of a single revolution of a high frequency variable speed continuous rotation or a continuous variable speed swing to improve transmission efficiency.

The invention adopts a variable speed output of a plurality of motion stroke curves to increase the relative speed of the laundry and the washing water, thereby effectively enhancing the cleaning ability and the energy saving function; the driving motor of the driving device (30) is a general-purpose motor. Only a simple digital control loop is needed, which is convenient and practical.

The link type variable speed power mechanism of the present invention can be applied to a mixer, a juice machine or other various structures having a stirring effect.

In summary, the "link type variable speed power mechanism" disclosed in the present invention provides a variable link length four-link set (50) that utilizes a drive shaft (P1) of a first drive motor (31). Driving the four-bar linkage (50), and driving the lead screw (42) to move the slider (41) with the second drive motor (32), so that the first distance (R1) of the four-link set (50) is changed as the length of the rod The variable four-bar linkage (50) is a combination of a double crank or a crank rocker mechanism to provide various laundry strokes, which are purely mechanical design, easy to assemble and maintain, and can achieve high performance, low cost and energy saving effects. Achieved a highly practical power organization, so that the overall industry has practical and innovative benefits, and its structure has not been seen in the publications or public use, in line with the requirements of the invention patent application, please ask the Bureau to identify, early grant patents, To the pray.

It is to be understood that the above is a specific embodiment of the present invention and the technical principles applied thereto, and the functional effects produced by the concept of the present invention are still beyond the spirit of the specification and drawings. In the meantime, it should be combined with Chen Ming within the scope of the present invention.

(A) ‧‧‧ first pivot point

(B) ‧‧‧ second pivot point

(P1)‧‧‧ drive shaft

(P2)‧‧‧ Output pivot

(R1) ‧ ‧ first distance

(R2)‧‧‧Second distance

(R3) ‧ ‧ third distance

(R4) ‧ ‧ fourth distance

(10) ‧‧‧Washing machine

(11) ‧‧‧Sink

(12)‧‧‧Roller

(13)‧‧‧Control devices

(20) ‧‧‧Power Agency

(21) ‧ ‧ pedestal

(22) ‧‧‧floor

(23)‧‧‧ side panels

(24) ‧‧‧ top board

(30)‧‧‧ Drives

(31)‧‧‧First drive motor

(32)‧‧‧Second drive motor

(40) ‧‧‧From the group

(41)‧‧‧ Slider

(42)‧‧‧ Lead screw

(43) ‧ ‧ guides

(44)‧‧‧ Turntable

(441)‧‧‧ Center

(442) ‧‧‧ pivotal department

(50) ‧‧‧ four-link set

(51)‧‧‧First connecting rod

(52)‧‧‧Second connecting rod

(53) ‧‧‧Variable fixed rod

(54) ‧‧‧ crank

The first figure is a schematic plan view showing the appearance of a washing machine according to a preferred embodiment of the present invention.

The second figure is a perspective view of a preferred embodiment of the present invention.

The third figure is an exploded perspective view of a preferred embodiment of the present invention.

The fourth figure is a top view of a preferred embodiment of the invention.

Figure 5 is a top plan view of a preferred embodiment of the present invention.

Figure 6 is a top plan view of the action of a preferred embodiment of the present invention.

The seventh figure is a top view of the action of the preferred embodiment of the present invention.

Figure 8 is a top plan view of a preferred embodiment of the present invention.

The ninth figure is a top view of the action of the preferred embodiment of the present invention.

Figure 11 is a top plan view of a preferred embodiment of the present invention.

Figure 11 is a top plan view 7 of a preferred embodiment of the present invention.

Figure 12 is a top plan view of a preferred embodiment of the present invention.

Figure 13 is a diagram 1 of the mechanism of a preferred embodiment of the present invention.

Figure 14 is a second view of the mechanism of a preferred embodiment of the present invention.

Figure 15 is a third view of the mechanism of a preferred embodiment of the present invention.

Figure 16 is a diagram showing the mechanism of a preferred embodiment of the present invention.

Figure 17 is a diagram 5 of the mechanism of a preferred embodiment of the present invention.

Figure 18 is a graph 1 showing the exercise performance of a preferred embodiment of the present invention.

Fig. 19 is a second exercise diagram of a preferred embodiment of the present invention.

Figure 20 is a third diagram of the exercise performance curve of a preferred embodiment of the present invention.

The twenty-first figure is a fourth diagram of the exercise performance curve of a preferred embodiment of the present invention.

A twenty-second figure is a fifth diagram of the exercise performance curve of a preferred embodiment of the present invention.

Figure 23 is a sixth diagram of the exercise performance curve of a preferred embodiment of the present invention.

The twenty-fourth embodiment is a seventh diagram of the exercise performance curve of a preferred embodiment of the present invention.

Figure 25 is a graph showing the exercise performance curve of a preferred embodiment of the present invention.

Figure 26 is a diagram 9 showing the exercise performance curve of a preferred embodiment of the present invention.

Figure 27 is a diagram showing the exercise performance curve 10 of a preferred embodiment of the present invention.

Figure 28 is a graph showing the exercise performance curve of a preferred embodiment of the present invention.

A twenty-ninth figure is a graph showing the exercise performance curve of a preferred embodiment of the present invention.

(A) ‧‧‧ first pivot point

(B) ‧‧‧ second pivot point

(P1)‧‧‧ drive shaft

(P2)‧‧‧ Output pivot

(R1) ‧ ‧ first distance

(R2)‧‧‧Second distance

(R3) ‧ ‧ third distance

(R4) ‧ ‧ fourth distance

(23)‧‧‧ side panels

(32)‧‧‧Second drive motor

(41)‧‧‧ Slider

(42)‧‧‧ Lead screw

(43) ‧ ‧ guides

(44)‧‧‧ Turntable

(51)‧‧‧First connecting rod

(52)‧‧‧Second connecting rod

(53) ‧‧‧Variable fixed rod

(54) ‧‧‧ crank

Claims (5)

The utility model relates to a link type variable speed power mechanism, which is mounted on a washing machine to drive a drum inside the washing machine for washing operation. The power mechanism comprises: a base, which is provided with two side plates and a top plate, which are installed in the washing machine a bottom portion of the inner portion, wherein the top plate is disposed above the two side plates; a driving device includes a first driving motor and a second driving motor; and a driven group is a slider, a lead screw, and a turntable The slider is disposed between the two side plates, the lead screw is pivotally connected to the slider, and the two ends thereof are respectively pivotally connected to the two side plates, and one of the first driving motors is driven through the shaft. The second driving motor is pivotally connected to the guiding screw, and the rotating wheel is disposed above the sliding block and pivotally connected to the driving shaft; the four-link group includes a first connecting rod and a second connecting rod, one end of the first connecting rod is pivotally connected to the preset position of the circumference of the turntable, and the other end is pivotally connected to the second connecting rod, and the second connecting rod is provided with an output pivot at the other end. Setting the output pivot to be pivotally connected to the preset position of the top plate And pivoting the output pivot to the roller, the transmission shaft and the output pivot form a variable fixing rod and has a variable distance, and the pivoting point between the transmission shaft and the first connecting rod Forming a crank, the first connecting rod, the second connecting rod, the variable fixing rod and the crank form a four-link, and the driving device drives the distance between the driving shaft and the output pivot to change the length of the rod, and the transmission The displacement of the slider causes the four-bar linkage to be changed to change the rotational speed and shake The pendulum is rotated continuously and reversed with the first drive motor to drive the drum to perform various laundry movement strokes. The link type variable speed power mechanism according to claim 1, wherein the first drive motor and the second drive motor are both applications of a reducer motor. The link type variable speed power mechanism according to claim 1, wherein the drive shaft of the first drive motor is longitudinally pivoted to the slider. According to the link type variable speed power mechanism of claim 1, wherein the driven group is further provided with two guiding rods, the lead screw is laterally disposed to be pivotally connected to the center of the slider, and the two ends thereof are respectively The two side plates are pivotally connected, and the first driving motor is disposed at the bottom of the slider, and the driving shaft is disposed to be pivotally connected to the slider, and the second driving motor is disposed at a central portion of the outer side of the one side plate. And the second driving motor and the lead screw are pivotally connected to each other, and the two guiding rods are respectively disposed transversely on the two sides of the slider, and the two ends thereof are respectively fixedly connected to the two side plates. The link type variable speed power mechanism according to claim 1, wherein the second connecting rod is provided with the output pivot at the other end.