KR100659216B1 - A driving gear of large-auto washing machine - Google Patents

Abstract

A structure of a driving unit of a large drum type washing machine is provided to preclude the bearing from being worn away and rotate the driving shaft smoothly by injecting the oil through the oil injection port non-periodically. A structure of a driving unit(50) of a large drum type washing machine comprises: a driving shaft(32) combined at a rotary tub(16) to transfer the rotary force of the motor; first and second bearings fitted to rotate the driving shaft and placed at both ends; first and second packing members(36a,36b) installed to be adjacent to one side of the first bearing so as to prevent the discharge of the washing water; a third packing member(36c) installed at one side of the second bearing to improve the airtightness; and a case for covering the members. The case contains oil injection ports(56,58) formed at the upper side to supply the oil into the first bearing non-periodically, and first and second discharge ports(59a,59b) formed to discharge the water to the outside.

Description

Structure of driving means of commercial drum washing machine {A DRIVING GEAR OF LARGE-AUTO WASHING MACHINE}

1 is a schematic view showing the internal structure of a conventional drum washing machine for commercial use.

Figure 2 is a schematic cross-sectional view showing the structure of the drive means of a conventional drum washing machine.

Figure 3 is a schematic cross-sectional view showing the structure of the drive means of a commercial drum washing machine according to a preferred embodiment of the present invention.

4 is a state diagram used in the present invention.

Explanation of symbols for the main parts of the drawings

10 conventional drum washing machine for commercial use 12 housing

13: door 14: water tank

16: rotating tank 18: drive motor

20: pulley 22: belt

30: drive means 32: drive shaft

34a: first bearing 34b: second bearing

36a: first packing member 36b: second packing member

36c: third packing member 38: case

39 outlet 50 drive means of the present invention

52a: first bearing 52b: second bearing

54: case 56, 58: oil inlet

59: second outlet

The present invention relates to the structure of the drive means of a commercial drum washing machine, more specifically, since the oil can be supplied from time to time to the bearing coupled to the outer circumference for the rotation of the drive shaft, the drive shaft is rotated smoothly, to prevent damage In addition, the present invention relates to a structure of a driving means of a drum washing machine for a shop configured to immediately discharge the washing water contained in the water tank when the drive shaft is rotated.

In general, a washing machine is a device for washing laundry by rotating a rotating tub of a cylindrical shape containing the laundry and the wash water, this type of washing machine is arranged horizontally by rotating the tub, the laundry is rotated in the forward and reverse directions with respect to the horizontal axis The drum washing machine which washes the laundry by raising it upwards along the inner circumferential surface of the rotating tub and the rotating tub having a pulsator inside are vertically arranged so that when the rotating tub rotates in the normal and reverse direction with respect to the vertical axis, the pulsator There is an upright washing machine which is a method of washing laundry by the water flow generated by it.

The drum washing machine is again produced for home and business. In other words, households have a small volume and capacity, while commercial businesses have a rather large volume and capacity.

The present invention relates to a commercial drum washing machine, Figure 1 is shown the internal structure of a commercial drum washing machine according to the prior art, Figure 2 is an enlarged cross-sectional view of the drive means.

As shown in FIG. 1, the drum washing machine 10 includes a housing 12 having a large appearance and a cylindrical water tank 14 horizontally installed inside the housing 12 to contain wash water, and the water tank 14. It is rotatably installed in the interior of the cylindrical tubular rotary tank 16 formed with a plurality of dehydration holes on the circumferential surface and receiving the rotational force of the driving motor 18 and the driving motor 18 to generate the driving force 16 ) Is composed of a drive means (30) for rotating.

In addition, the front portion of the housing 12 is open to insert or take out laundry into the rotating tub 16, the door 13 for opening or closing the rotating tub 16 in the front portion of the open housing 12. ) Is hinged. Lifters are usually disposed at regular intervals on the inner circumferential surface of the rotating tub 16 so that the laundry is pulled upwards as the rotary tub 16 rotates so as to fall from a predetermined height.

In addition, a water supply hose and a detergent container are usually provided on the upper portion of the housing 12.

Briefly describing the operation of the conventional drum washing machine 10 having the structure as described above, when the washing water containing detergent is supplied to the water tank 14 through the water supply hose and the detergent container, the rotary tank 16 into which the laundry is introduced. Through the dehydration holes formed on the circumferential surface of the rotating tub 16 is also filled with washing water to a certain height. Next, the driving motor 18 is operated, the driving means 30 connected to the driving motor 18 is operated, and the rotating tank 16 coupled to the driving means 30 is turned clockwise or counterclockwise. The washing process is performed by rotating.

2 illustrates an enlarged cross-sectional view of the structure of the driving means 30 for rotating the rotating tub 16. The driving means 30 is largely coupled to the water tank 14 to cover the inside of the case 38. And, one end is coupled to the pulley 20 is fastened by the drive motor 18 and the belt 22, the other end is extended to the inside of the case 38, the drive shaft is coupled to the rotating tub 16 is rotated (32), first and second bearings (34a) and (34b), which are fitted to smoothly rotate the drive shaft (32) and positioned at both ends of the case (38), and the first bearing (34a). ) Is installed adjacent to the first and second packing members (36a, 36b) and the second bearing (34b) to be installed adjacent to the water tank 14 to prevent the wash water contained in the water tank (14) It is comprised including the 3 packing member 36c.
In addition, when the wash water passes through the first packing member 36a at the lower end of the case 38, a discharge port 39 is formed to immediately discharge the wash water to the outside.

The operation of the drive means 30 configured as described above will be briefly described. The rotating tank 16 is rotated by the drive shaft 32 coupled to the pulley 20 fastened by the drive motor 18 and the belt 22. Will be rotated. At this time, the first and second bearings 34a and 34b fitted to the outer circumferential surface for smooth rotation of the drive shaft 32 have a problem that hinders the rotation of the drive shaft 32 when the oil first injected into the bearing is lost. . That is, when the drive shaft 32 rotates at a high speed for a long time, the oil injected into the first and second bearings 34a and 34b will be lost, and thus, the first and second bearings 34a, which have lost smooth rotational force ( 34b) will be broken soon, so there is a big problem to replace it.

In addition, the wash water passing through the packing members 36a and 36b when the first and second packing members 36a and 36b is worn is accumulated between the first bearing 34a and the second bearing 34b. May cause malfunction.

The present invention has been made to solve the above problems, more specifically, the oil can be supplied from time to time to the bearing coupled to the outer circumferential surface of the drive shaft, so that the drive shaft rotates smoothly, as well as to prevent damage to the tank It is intended to provide a structure of a drive shaft of a commercial drum washing machine configured to be immediately discharged when the wash water contained in the case is introduced into the case during the rotation of the drive shaft.

In order to achieve the above object, the present invention is a case for covering the drive means is formed in the upper portion of the oil inlet for supplying oil from time to time to the first bearing fitted to the outer circumference for the rotation of the drive shaft, the bottom of the water tank A second outlet is formed along with the first outlet so that the washing water contained in the washing water can be quickly discharged to the outside.

Preferably, the third packing member is formed with an oil injection hole to supply oil to the second bearing.

In addition, the first and second bearings use a bearing having one side open, and the opening is in contact with the surface of the packing member to prevent the oil injected through the opening from being easily lost.

Hereinafter, with reference to the accompanying drawings will be described in more detail the structure of the drive means of a commercial drum washing machine of the present invention.

Figure 3 is an enlarged cross-sectional view showing the driving means is rotated by connecting the rotating tub and the drive motor according to an embodiment of the present invention, Figure 4 shows the internal structure of the drum washing machine according to a preferred embodiment of the present invention.

Referring to the enlarged cross-sectional view of the drive means according to the present invention with reference to Figure 3, it can be seen that the structure is different from the conventional drive means.

Looking at the driving means 50 of the present invention, the case 54 and one end attached to the water tank 14 to cover the inside is coupled to the pulley 22, the other end is extended to the inside of the case 54 to rotate the tub The first and second bearings 52a and 52b which are fastened to the outer circumferential surface of the driving shaft 32 and the driving shaft 32 fastened to the outer circumferential surface and inserted into both ends of the case 54, are coupled to the driving shaft 32 and the driving shaft 32. A third packing member which is fitted to the outer circumferential surface of the 32 and positioned outside the first and second packing members 36a and 36b and positioned outside the first bearing 52a and the second bearing 52b. It comprises the 36c.

Here, the case 54 is an oil inlet 56 is formed in the upper portion so as to smoothly rotate by supplying oil from time to time to the first bearing 52a fitted to the outer circumferential surface for rotation of the drive shaft 32, the lower portion It is preferable that the second discharge port 59b is formed in addition to the first discharge port 59a so that the washing water contained in the water tank 14 can be quickly discharged to the outside when it flows into the case.

Here, conventional bearings may be classified into an open type in which both sides are open, a single type in which only one side is open, and a closed type in which both sides are completely closed. The open side is widely used in a very small device that requires almost no injection of oil due to the disadvantage that the oil is easily lost, and the closed type is completely closed by injecting oil into the inside. Because of the irreplaceable disadvantage of not being used much. On the other hand, the one-sided open type is widely used as the oil is lost at an appropriate time and the oil can be injected for the lost oil.

Therefore, in the present invention, it is preferable to use bearings 52a and 52b having one side open to allow the oil to be appropriately replaced, and the opening to the face of the packing member 36b so that the injected oil is not too easily lost. Positioning is desirable.

In addition, it is preferable that an oil inlet 58 through which the oil is supplied to the second bearing 52b positioned inward is formed in the third packing member 36c.

In this case, the oil inlets 56 and 58 formed in the case 54 and the third packing member 36c may have only a through hole, but a stopper may be provided to prevent dust or foreign matter from penetrating therein. It is preferable to form the provided horns.

Figure 4 is a schematic diagram showing the internal structure of a drum washing machine to which the driving means of the present invention is applied, and thus the detailed description thereof will be omitted.

The drum washing machine 10 'is a housing 12 having a large appearance, a cylindrical water tank 14 installed horizontally inside the housing 12 to contain washing water, and rotating inside the water tank 14. It is installed to be possible and the rotary tub 16 of the cylindrical shape having a plurality of dehydration holes formed on the circumferential surface, the driving motor 18 generating the driving force and the rotational force of the driving motor 18 to receive the rotation of the rotating tub 16 It consists of the drive means 50 of the present invention.

As described above with reference to FIG. 3, the driving means 50 is formed by using a syringe-like mechanism from the outside through respective oil inlets 56 and 58 formed in the case 54 and the third packing member 36c. Since oil can be injected into the first and second bearings 52a and 52b from time to time, it is natural to prevent wear of the first and second bearings 52a and 52b, and the drive shaft 32 can be rotated more smoothly. It is. Since the drive shaft 32 is smoothly rotated, the rotating tub 16 coupled thereto may be smoothly rotated together. Therefore, there is an advantage that can provide a commercial drum washing machine 10 'with less noise and less trouble.

In addition, since the second discharge port 59b is formed at the lower ends of both sides of the case 54 together with the first discharge port 59a, the case 54 is worn when the first and second packing members 36a and 36b are worn. Washing water flowing into the inside of the can be immediately discharged to the outside. Therefore, it is a useful invention that can prevent the malfunction and the trouble that can be generated in the machine by moisture.

The foregoing has outlined rather broadly the features and technical advantages of the present invention in order to better understand the claims of the invention which will be described later. Additional features and advantages constituting the claims of the present invention will be described below. It should be appreciated by those skilled in the art that the conception and specific embodiments of the invention disclosed may be readily used as a basis for designing or modifying other structures for carrying out similar purposes to the invention.

In addition, such modifications or altered equivalent structures by those skilled in the art as a basis for modifying or designing the structures and embodiments of the invention disclosed in the present invention to other structures for carrying out the same purposes of the present invention are patents Various changes, substitutions and changes may be made without departing from the spirit or scope of the invention as set forth in the claims.

As described above, according to the driving means of the commercial drum washing machine of the present invention, oil can be injected from the outside through the respective oil inlets formed in the case and the third packing member from time to time to prevent the wear of the bearing Naturally, the drive shaft can be rotated more smoothly.

In addition, since the first and second discharge ports are formed at the lower end of the case, the washing water flowing into the case can be immediately discharged to the outside, thereby preventing malfunction and remaining trouble that may occur in the machine due to moisture. Can be planned.

Claims (3)

A drive shaft coupled to the rotating tub of the drum washing machine to transmit the rotational force of the drive motor, first and second bearings fitted to rotate the drive shaft and positioned at both ends thereof, and installed adjacent to one side of the first bearing. The first and second packing members for preventing the leakage of the wash water contained in, the third packing member is installed on one side of the second bearing to improve the tightness and the driving means of the commercial drum washing machine comprising a case covering the inside In structure, The case covering the drive means is formed with an oil inlet for supplying oil from time to time to the first bearing fitted to the outer circumference for the rotation of the drive shaft, the lower portion is quickly outside when the wash water contained in the tank The structure of the drive means of a drum washing machine for a shop, characterized in that the second discharge port is formed in addition to the first discharge port so as to discharge. The method of claim 1, The third packing member is a structure of the drive means of the drum washing machine for shops, characterized in that an oil inlet is formed to supply oil to the second bearing. The method according to claim 1 or 2, The first and second bearings are bearings of which one side is open, but in order to prevent the oil injected through the opening from being easily lost, the opening is installed to contact the surface of the packing member. Structure of the drive means.

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