CN103526502B - A kind of centrifugal type washing machine of rotating cylinder tyre blade - Google Patents

Abstract

A centrifugal washing machine with blades outside the drum, comprising a casing, a motor, a transmission box, a synchronous holding mechanism, a water-holding shell structure and a rotating drum. There is a rotating drum, the motor is arranged at the bottom of the shell, a pulsator is arranged at the bottom of the rotating drum, a central shaft is arranged under the pulsator, and a sleeve shaft is arranged outside the central shaft, and the central shaft and the sleeve shaft are respectively positioned by bearing bushes. The pulsator is connected with the central shaft as a whole, and the rotating cylinder is connected with the speed box by the sleeve shaft, and the sleeve shaft is connected with the rotating cylinder as a whole, and a sealing structure is arranged on the upper part of the rotating shaft, there are blades on the outside of the rotating cylinder, and the inside of the transmission box is equipped with There is a planetary gear mechanism, and a synchronous clamping mechanism is arranged outside it, and the motor is connected with the pulsator through a transmission box, so that the pulsator can realize positive and negative rotation. The invention utilizes a centrifugal washing method to improve washing efficiency, and is a centrifugal drum washing machine that saves time, electricity, water, wear and entanglement.

Description

Centrifugal washing machine with blades outside the drum

Technical field:

The invention relates to a washing machine, in particular to a centrifugal washing machine with blades outside the drum.

technical background:

At present, the main structural forms of mature washing machines in the domestic and foreign markets are pulsator type, drum type and stirring type, which have become the mainstream of the market due to their simple structure and recognized washing effect; Type washing machine, high-pressure washing machine, vacuum washing machine, vibrating washing machine, suspended double wave wheel washing machine and other types, the new type of washing machine has basically not formed a market product, and it is difficult to find a trace. As a conventional household appliance, washing machines have been researched and innovated focus.

The market competition for washing machine products is very fierce. Various multi-impeller, new water flow, hand-rubbing, dual-power, and centrifugal triple-in-one washing machines, such as the dual-power washing machine of Haier Group, the inclined drum washing machine of Panasonic of Japan, and the combination of washing and drying A washing machine integrated with drying, a washing machine without washing powder, or a fully automatic and fuzzy control washing machine using modern control technology. Their basic structure is still "wave wheel" or "drum". In recent years, there have been more than 2,000 patent applications for washing machines, and new materials, new technologies, artificial intelligence, environmental protection and health technologies have been continuously applied to washing machines. The water-air double-cycle washing, bubble washing, double-plate rubbing, electromagnetic force vibration, piston washing machine, etc. in the new patents have made great breakthroughs in washing principles and structures. Inventions and innovations continue, and market competition Intense, technological innovation continues to deepen, and a new generation of washing machines with independent intellectual property rights is expected to be displayed. According to the information provided by Haier Group, the washing machines sold in the world market are basically the two main structural models of "wave wheel" or "drum", and no major breakthrough has occurred so far. Hand rubbing, new water flow, centrifugal three-in-one, etc. are all partial improvements under this main structure.

Invention patent CN102797129A discloses a front and back three-dimensional spiral drum washing machine. There are three-dimensional helical blades on the outside of the drum, so that the water outside the drum continuously enters the drum, forming a water flow impact on the clothes, and at the same time, the water in the clothes is thrown out. The washing machine with this structure has the advantages of saving water, little wear, good washing effect and convenient use. Patent No. ZL200810013668.4 is an invention patent "special-shaped drum washing machine", which can realize the dual-function mixed effect of pulsator washing and centrifugal washing. It is characterized in that the washing drum is a special-shaped drum body and pulsator, which can realize reverse rotation and different speed rotation , driven by the motor at the bottom. During the laundry washing process, the low-speed pulsator washing is performed for a period of time, and then the speed of the special-shaped drum is increased to enter the centrifugal washing. The clothes are thrown to the upper part of the drum under the action of centrifugal force, and the water flows continuously upward along the cone surface. , through the clothes under the centrifugal force and thrown out of the washing drum to achieve the purpose of high-efficiency washing.

Since clothing is a fibrous tissue with the characteristics of sponge-like storage and storage of dirt, the purpose of washing clothes is to drive out the stains in the fibrous tissue. The ideal washing effect of washing clothes with water is to realize the continuous "water absorption" and "squeeze water" of the clothing fibers The effective function of various washing actions is to realize the continuous "inhalation" and "extrusion" of the washing liquid by the clothes through the continuous immersion of water into the fibers of the clothes, and then with the extrusion of water to remove and bring out the stains. From manual hand washing to mechanical washing machine, its main mechanical action should be: make the clothes rubbing, beating and impacting each other, the washing liquid continuously passes through the inside of the clothes fibers, softens the stains, and squeezes out water continuously. And in the process of suction, the stains can be brought out from the fine crevices of the fibers. To judge the intensity of washing and the corresponding degree of cleanliness, we should focus on the frequency of "squeezing" and "sucking" and their effectiveness in removing stains and rinsing.

Invention content:

The invention overcomes the deficiencies in the prior art and proposes a centrifugal washing machine with blades outside the drum. The washing machine has a pulsator at the bottom center of the drum and straight blades for pumping water outside the drum, which can realize The low-speed pulsator rotates the water for washing, and the clothes are centrifugally washed at a medium speed and dried at a higher speed; while the outer blades of the drum pump the water upwards, pass through the upper cover, and return to the drum to form a centrifugal washing machine. Water circulation during washing. The invention utilizes a centrifugal washing method to improve washing efficiency, and is a centrifugal drum washing machine that saves time, electricity, water, wear and entanglement.

The technical solution of the present invention is: a centrifugal washing machine with blades outside the drum, including a casing, a motor, a transmission box, a synchronous holding mechanism, a water-holding shell structure and a rotating drum, and the inside of the shell is a water-holding shell structure, There is a rotary cylinder inside the structure of the water holding shell, the motor is located at the bottom of the shell, a pulsator is provided at the bottom of the rotary cylinder, a central shaft is provided below the pulsator, and a sleeve shaft is provided outside the central shaft. The sleeve shafts are respectively positioned with bearing bushes, the pulsator is connected to the central shaft as a whole, and the rotating drum is connected to the speed box by the sleeve shaft. In the bearing bush, there are blades on the outside of the rotating drum, a planetary gear mechanism inside the transmission box, and a synchronous holding mechanism on the outside. When the tightening mechanism is loosened, the transmission box outputs power, and the pulsator rotates. When the synchronous tightening mechanism is tightened, the transmission box can synchronize the central shaft and the sleeve shaft.

The drum is cylindrical and has small holes on the drum body. The blades are straight blades. The drum can rotate at different speeds and in positive and negative directions. It plays a role in the process of centrifugal washing, centrifugal rinsing and drying. The straight blades It can drive water to circulate through the upper cover to the inside of the drum.

The upper part of the water holding shell structure is provided with a water channel for upward circulation, and the outer cover door and the spray cover are arranged on the shell. The water holding shell and the spray cover maintain certain sealing requirements, and the internal water channel of the spray cover has Spray function, the circulating water passes through the filter screen and water channel inside the spray cover, and sprays evenly on the clothes in the drum to form a water circulation.

The gap between the rotating drum and the water holding shell is greater than 25mm, and the gap between the rotating drum and the water holding shell forms a water tank. The drum centrifugally separates the water from the clothes, concentrates in the middle and upper part of the water tank, and is pumped by the blades on the drum, the water flows upwards along the water tank, enters the water channel of the upper cover of the spray, and is filtered by the filter net, and flows toward the center. Concentrate, and then spray on the clothes in the drum; the water tank is made of plastic, which is composed of upper and lower parts, which is convenient for the installation of internal parts; there are supporting spring hangers at the four corners of the bottom of the water tank, and the water tank The components such as the inner drum and the inner drum are integrally suspended on the shell of the washing machine to reduce the vibration during the washing process.

The overall shell of the present invention is square, which can be stamped and manufactured by metal plates, and supports all internal components and the weight of washing; the upper part is connected to the water inlet pipe, and an electromagnetic water inlet switch is installed on the water inlet pipe to automatically control the water consumption of each washing process; the drain pipe It is installed at the bottom of the casing, and the drainage is controlled by an electromagnetic switch; there are four legs at the bottom of the entire casing to support the entire washing machine.

The present invention is based on centrifugal washing and centrifugal dehydration, and realizes the continuous "inhalation" and "extrusion" of washing liquid to clothes in terms of washing mechanism; the main structure is a circular drum, blades on the drum, and a water channel for spraying the upper cover , the rotating drum at a medium speed makes the water in the clothes be thrown out under the action of centrifugal force and concentrated in the water holding shell, the rotating drum blades pump the water into the upper spray cover along the flow channel, and the water is sprayed from the center On the clothes, a centrifugal water cycle is formed, and the stains in the clothes are taken away in the process of continuous "sucking" and "throwing out" of the water. For the whole laundry process, the present invention can realize the low-speed pulsator washing process with a rotating speed of 100-140 revolutions per minute. At this time, the detergent can fully soak the clothes, and the pulsator rotation can form a certain washing water flow, and the clothes After being rubbed by the water flow, after a few minutes, the transmission box synchronously tightens the mechanism to work, the drum and the pulsator rotate synchronously, the speed increases to more than 300 rpm, and the centrifugal washing mode starts; when the detergent washing stage is completed, it enters the rinsing process , using relatively less water than when washing with a wave wheel, perform centrifugal rinsing. In the process of continuously passing through the clothes, the water will take away the stains, washing powder residues and oil stains in the fibers, so that the washing degree is further improved. Centrifugal rinsing The traditional laundry process can realize the switching of the positive and negative directions of the drum in time intervals, so as to achieve the flipping of the clothes; after two times of rinsing, it enters the final high-speed drying stage, the drum and the wave wheel are synchronized, and the rotation speed is 800 per minute. ~1000 rpm.

The beneficial effects of the present invention are:

1) In the form of outer blades of the drum, the purpose of pumping washing liquid can be realized, the structure is simple, and the movement performance is good;

2) Centrifugal washing is realized by adopting the centrifugal principle to form a centrifugal flow cycle of the laundry water. The laundry water continuously "inhales" and "throws out" the clothes, and the spray water realizes the impact and penetration of the clothes, which is convenient for taking away the stains inside the fibers. To achieve the purpose of efficient laundry;

3) It has the characteristics of a pulsator washing machine, using the water flow generated by the rotation of the pulsator to drive and impact the clothes for washing, so as to achieve the effect of evenly washing detergent and eroding stains;

4) The clothes in the drum are not easy to be entangled during washing, and the drum can be rotated in reverse at regular intervals, which has the effect of turning clothes over, centrifugal extrusion, and preventing entanglement, with high utilization rate of mechanical energy and good washing effect;

5) The amount of water filled in the centrifugal washing process is small, so as to achieve the purpose of saving water.

Description of drawings:

Fig. 1 is a schematic diagram of the sectional structure principle of the main body of the whole machine of the present invention.

Fig. 2 is a structural schematic view of the pulsator and the central shaft of the present invention.

Fig. 3 is a structural schematic diagram of the drum of the present invention.

Fig. 4 is a structural schematic diagram of the water holding shell and the top cover of the present invention.

Fig. 5 is a schematic diagram of the top cover structure of the present invention.

In the figure, 1, transmission belt 2, transmission box 3, synchronous holding mechanism 4, motor; 5, central shaft 6, sleeve shaft 7, pulsator 8, rotating drum 9, rotating drum blades; 10, filter screen 11, spray Loam cake 12, outer cover door 13, water inlet 14, suspender 15, hold water shell; 16, shell 17, drain 18, drain valve 19, drainpipe; 20, chassis.

detailed description:

Referring to Fig. 1 to Fig. 5, the composition of the whole machine structure of the present invention includes: a transmission belt 1, a transmission box 2, a synchronous holding mechanism 3, a motor 4, a central shaft 5, a sleeve shaft 6, a pulsator 7, a drum 8, Drum blade 9, filter screen 10, spray upper cover 11, outer cover door 12, water inlet 13, suspension rod 14, water holding shell 15, shell 16, drain channel 17, drain valve 18, drain pipe 19, chassis 20 . The water inlet 13 is on the upper part of the casing 16, the drain valve 18 is on the lower part of the casing 16, and the chassis 20 is on the bottom of the casing 16. The overall structure is shown in Figure 1; the central shaft 5 and the pulsator 7 are integrated to form a pulsator to rotate body; drum 8 and drum blades 9 form a drum rotating body, which is driven by sleeve shaft 6; water holding shell 15 is composed of upper and lower parts, which is convenient for internal component installation; central shaft 5 and sleeve shaft 6 are respectively connected with transmission box 2 and The synchronous clasping mechanism 3 is connected, and the transmission box 2 can realize the reverse rotation drive of the two shafts. The transmission box 2 is connected with the transmission belt 1, and the transmission belt 1 is connected with the motor 4 to form a power transmission system.

The design structure of the present invention has a cubic shape, the control panel is on the top, and the outer cover door 12 and the spray upper cover 11 are opened for clothes to be taken and placed. There are water channels and filter screens 10 in the spray upper cover. When the spray upper cover is closed, there is a certain Sealing effect; the innermost layer is the drum 8 made of stainless steel, the second layer is a water tank 15 formed of plastic material, the outermost layer is a shell 16, made of sheet metal, and the drum 8 is connected to the tank by a suspender 14. Internal components such as the water shell 15 are integrally suspended on the shell 16 . When the washing machine of the invention is working, water is fed from the upper part and water is discharged from the lower part, and the washing process at different rotating speeds is controlled by an automatic control system. When starting to wash, water and detergent enter together in the water-holding housing 15, and the amount of washing water reaches the prescribed requirement. The motor 4 is driven by the transmission belt 1, and drives the transmission box 2 to output rotational motion at different speeds, and drives the central shaft 5 and the pulsator to rotate. At this time, the drum 8 does not rotate, and all the power is transmitted to the pulsator 7, and the clothes are stirred and mixed in the pulsator 7. Under the impact of water flow, the liquid containing detergent fully soaks the clothes, dissolves the stains on the clothes fibers, and forms a washing effect of dissolution and erosion. After a few minutes of pulsator washing, the stains on the clothes will be separated from the clothes under the soaking, softening and hydraulic rubbing of detergent; The drum and the pulsator rotate synchronously, the rotation speed is increased to more than 300 revolutions per minute, and the centrifugal washing mode begins. The clothes are concentrated on the periphery of the drum under the action of centrifugal force, and the washing liquid contained in the clothes is thrown out. The blades 9 of the drum and the top spray cover 11 continuously spray the washing liquid onto the clothes, forming a water circulation, and the washing liquid In the process of continuously passing through the clothes, the dirt inside the clothes fibers can be better washed out, and the filter screen 10 is provided in the spray upper cover 11, and the circulating water must be filtered by the filter screen 10 every time, reducing the secondary damage to the clothes pollute. When the clothes enter the rinsing stage, the water consumption is less than that during washing, and the drum and the pulsator rotate synchronously. All of them are rinsed in the centrifugal mode, and the clean water directly passes through the clothes to wash away the stains and detergent contained in the clothes. For the rinsing effect, the rotating direction of the drum 8 can be changed in different periods, so that the clothes can be turned over during the changing process. In the drying and dehydration stage of the clothes, the drum 8 and the pulsator 7 rotate synchronously, and the speed is increased to 800-1000 revolutions per minute, and the water in the clothes is thrown out under the action of centrifugal force to meet the specified dry humidity requirements.

The drum structure designed by the invention, as shown in Figure 3, the drum 8 as a whole is in the shape of a cylindrical shell, made of stainless steel, and the housing of the drum 8 is covered with water holes, which facilitates the free throwing of the washing liquid during centrifugal laundry . There is a pulsator installation position at the bottom of the drum 8. The pulsator rotates at the center of the bottom of the drum 8. The pulsator shaft is the central axis 5, which drives the pulsator 7 to rotate. The drum 8 and the sleeve shaft 6 are integrated, and the central shaft 5 and the sleeve shaft 6 Bearing pads are used for positioning respectively. There is a sealing structure on the upper part of the rotating shaft to prevent laundry liquid from entering the bearing pads. The internal lubrication of the bearing pads is lubricated with grease. There are drum blades 9 on the outside of the drum, which are straight and close to the outer surface of the drum. Generally, there are 5 to 8 blades. During centrifugal washing, the speed of the drum is above 300 revolutions per minute, and the blades play a role in agitating the water flow to form pumping. The function of the impeller is to pump the liquid outside the drum upwards, pass through the water channel of the top cover, and spray into the inside of the drum to form a cycle of centrifugal water; when the drum 8 rotates in one direction for 0.5 to 1 minute, the drum is controlled by the program 8 is reversely rotated, and at this time, the clothes are reversed and shifted in the drum 8 to improve the centrifugal washing effect. The upper part of the drum is open, and the edge of the opening shrinks inward, which is convenient for blocking the clothes. The water jets of the upper spray cover 11 will coincide with the center of the drum opening to facilitate the entry of circulating water.

The pulsator system designed by the invention, as shown in Figure 2, is composed of a central shaft 5 and a pulsator 7. The transmission box 2 can drive the pulsator 7 to realize independent low-speed rotation, which is the first stage of washing. At this time, The detergent is dissolved in water to form a washing liquid, which soaks and softens the stains on the clothes. The pulsator 7 rotates to drive the washing liquid and the clothes to be washed by hydraulic rubbing. It can be controlled by the program; after the pulsator 7 rotates at a low speed for a few minutes, it will enter the next stage of centrifugal washing. At this time, the synchronous holding mechanism 3 of the transmission box 2 acts to combine the central shaft 5 and the sleeve shaft 6 for rotation. , while increasing the rotation speed.

The structure of the water-holding shell in the main structure of the invention design, as shown in accompanying drawing 4, the water-holding shell 15 is made of plastic, and is composed of upper and lower parts. The bottom has shaft holes, internal drains, etc., and the bottom has reinforcing ribs Increase the strength of its housing to meet the installation requirements of the main shaft and sleeve shaft 6. The internal drain 17 can be provided with two to three in the housing, converging at the bottom and being connected with the drain pipe 19 . There is an opening on the upper part of the water storage shell 15 to cooperate with the spray upper cover 11. When the spray upper cover 11 is closed, it has certain sealing requirements to prevent the leakage of centrifugal circulating water; the upper and lower water storage shells are assembled after the internal drum is installed. Sealed with sealant. The outer side of the inner circle of the water holding shell 15 has suspension rods 14 installation holes at the four corners. The diameter of the bottom of the hole is large, which is convenient for spring installation. The diameter of the upper part of the hole is small, slightly larger than the diameter of the suspension rod. Boom to bear, while meeting the requirements of reducing vibration.

The top cover structure of the present invention has a circulating water channel and a filter screen 10 at the same time. The washing liquid pumped by the drum passes through the top cover, and is sprayed onto the clothes from the diversion port on the top cover, thereby forming a continuous circulation of the washing liquid. In order to prevent the flocculent stains in the washing liquid from sticking to the clothes, the filter in the water channel of the top cover can filter part of the flocculent stains. When the washing machine is working, the top cover and the upper opening of the water tank are tightly closed to prevent circulating water from splashing out.

The motor 4 rotates after being energized, and the transmission belt 1 drives the transmission box 2; forming a transmission to the pulsator and the drum, the central shaft 5 drives the pulsator 7 to rotate, the sleeve shaft 6 drives the drum 8 to rotate, and the synchronous locking mechanism on the transmission box 2 3. It can ensure the synchronous rotation of the central shaft 5 and the sleeve shaft 6. The pulsator 7 and the drum 8 are used to rotate synchronously during the centrifugal washing, rinsing and drying that take up most of the time. The transmission system is simple and direct. In the main washing mode In the process of centrifugal washing, its rotating speed is medium speed, which is more than 300 revolutions per minute, which is higher than the existing types of washing machines, which can improve the washing speed and efficiency. In addition, it is relatively economical in terms of water consumption.

The overall shape structure of the invention design is composed of sheet metal and plastic injection molded parts. The upper plastic part has a fully automatic control panel, and the edges are excessively large-radius arcs; the middle and bottom are made of sheet metal to support the entire The weight of the internal parts is supported by four corners at the bottom.

Claims (2)

1. A centrifugal washing machine with blades outside the rotating drum, comprising a shell, a motor, a transmission box, a synchronous holding mechanism, a water-holding shell structure and a rotating drum, and is characterized in that: the inside of the shell is a water-holding shell structure. There is a rotating cylinder inside the structure of the water holding shell, the motor is arranged at the bottom of the shell, a pulsator is arranged at the bottom of the rotating cylinder, a central shaft is arranged below the pulsator, and a sleeve shaft is arranged outside the central shaft, and the central shaft and the sleeve The shafts are respectively positioned with bearing bushes, the pulsator is connected to the central shaft as a whole, and the drum is connected to the speed box by a sleeve shaft, and the sleeve shaft is connected to the drum as a whole. The liquid enters the bearing bush, there are blades on the outside of the rotating drum, a planetary gear mechanism is installed inside the transmission box, and a synchronous clamping mechanism is installed on the outside, the motor is connected with the pulsator through the transmission box, so that the pulsator can rotate positively and negatively. When the synchronous locking mechanism is loosened, the transmission box outputs power, and the pulsator rotates. When the synchronous locking mechanism is tightly locked, the transmission box can synchronize the central shaft and the sleeve shaft; The drum is cylindrical and has small holes on the drum body. The blades are straight blades. The drum can rotate at different speeds and in positive and negative directions. It plays a role in the process of centrifugal washing, centrifugal rinsing and drying. The straight blades It can drive water to circulate through the spray cover to the inside of the drum; The upper part of the water holding shell structure is provided with a water channel for upward circulation, and the outer cover door and the spray cover are arranged on the shell. The water holding shell and the spray cover maintain certain sealing requirements, and the internal water channel of the spray cover has Spray function, the circulating water passes through the filter screen and water channel inside the spray cover, and sprays evenly on the clothes in the drum to form a water circulation. 2. The centrifugal washing machine with blades outside the drum according to claim 1, characterized in that: the gap between the drum and the water shell is greater than 25 mm, and the gap between the drum and the water shell forms a water tank.