KR0119426Y1 - Device for conveying driving power - Google Patents
Device for conveying driving powerInfo
- Publication number
- KR0119426Y1 KR0119426Y1 KR2019940025709U KR19940025709U KR0119426Y1 KR 0119426 Y1 KR0119426 Y1 KR 0119426Y1 KR 2019940025709 U KR2019940025709 U KR 2019940025709U KR 19940025709 U KR19940025709 U KR 19940025709U KR 0119426 Y1 KR0119426 Y1 KR 0119426Y1
- Authority
- KR
- South Korea
- Prior art keywords
- pulley
- belt
- motor
- power
- power transmission
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/36—Driving arrangements for rotating the receptacle at more than one speed
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
모터와 변속장치간의 동력전달효율을 증대시킴으로써 동력손실 방지는 물론 자동제어의 정확도를 향상시킨 세탁기의 동력전달장치에 관한 것으로, 동력 과부하가 걸리는 경우, 모터와 변속장치에 각각 장착된 구동풀리 및 풀리와 이를 연결하는 벨트간에 슬립이 발생함으로써 동력손실은 물론 회전수를 입력치로 하는 자동제어의 정확도가 저하되는 종래의 문제점을 개선하기 위한 것인 바, 상기의 구동풀리(23)와 풀리(25)의 외주면에 중심축방향으로 일정간격의 홈과 돌기를 형성하는 한편 구동풀리(23)와 풀리(25)를 서로 연결하는 벨트(24)의 접촉면을 상기의 홈 및 돌기에 상응하는 요철형상으로 하여 모터(21)와 변속장치(22)간의 동력전달효율을 증대시킴으로써 동력손실 방지는 물론 회전수를 입력치로 하는 자동제어의 정확도를 향상시킬 수 있도록 한 것이다.The present invention relates to a power transmission device of a washing machine that prevents power loss and improves the accuracy of automatic control by increasing power transmission efficiency between the motor and the transmission. In the case of power overload, drive pulleys and pulleys respectively mounted to the motor and the transmission are respectively provided. In order to improve the conventional problem that the slip is generated between the belt and the belt connecting the bar, the accuracy of the automatic control of the power loss as well as the rotational speed is reduced, and the driving pulley 23 and the pulley 25 described above. While forming grooves and protrusions at regular intervals in the direction of the center axis on the outer circumferential surface thereof, the contact surface of the belt 24 which connects the driving pulley 23 and the pulley 25 to each other has a concave-convex shape corresponding to the grooves and protrusions. By increasing the power transmission efficiency between the motor 21 and the transmission 22, it is possible not only to prevent power loss but also to improve the accuracy of automatic control using the rotational speed as an input value. It is.
Description
제1도 (a)는 종래의 세탁기 동력전달장치의 정면도.Figure 1 (a) is a front view of a conventional washing machine power train.
(b)는 상기 (a)의 A-A선 단면도.(b) is sectional drawing along the A-A line of said (a).
제2도 (a)는 본 고안의 세탁기 동력전달장치의 정면도.Figure 2 (a) is a front view of the washing machine power transmission device of the present invention.
(b)는 상기 (a)의 B-B선 단면도이다.(b) is sectional drawing along the B-B line | wire of said (a).
*도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
21:모터 22:변속장치21: motor 22: transmission
23:구동풀리 24:벨트23: Drive pulley 24: Belt
25:풀리25: pulley
본 고안은 세탁기의 동력전달장치, 더욱 상세하게는 모터와 변속장치간의 동력전달효율을 증대시킴으로써 동력손실 방지는 물론 자동제어의 정확도를 향상시킨 세탁기의 동력전달장치에 관한 것이다.The present invention relates to a power transmission device of a washing machine, and more particularly, to a power transmission device of a washing machine that improves the accuracy of automatic control as well as preventing power loss by increasing power transmission efficiency between a motor and a transmission.
일반적으로, 세탁기는 모터에서 발생한 동력으로 변속장치에 연결된 탈수조 내부의 세탁물을 교반시켜 의류등에 부착된 오물을 제거하는 것이 기본 작동원리이다.In general, the washing machine is a basic operation principle to remove the dirt attached to the clothes by stirring the laundry inside the dehydration tank connected to the transmission by the power generated by the motor.
이때, 상기의 모터에 장착된 구동풀리와 변속장치의 회전축에 장착된 풀리는 통상 브이풀리(V-pulley)이며 상기 두개의 풀리 사이에서 동력을 전달하는 벨트 역시 브이벨트(V-belt)이다. 한편, 일반적 풀리와 벨트로 구성되는 동력전달장치에서는 적정치 이상의 동력 과부하가 걸리거나 또는 벨트가 느슨해지면 원활한 동력전달에 무리가 따르게 되어 풀리와 벨트간에 슬립(Slip)이 발생하며, 동력 전달성이 비교적 양호한 브이풀리 및 브이벨트 역시 이러한 현상을 근본적으로 배제할 수는 없다.At this time, the drive pulley mounted on the motor and the pulley mounted on the rotating shaft of the transmission are usually V-pulleys and the belt transmitting power between the two pulleys is also a V-belt. On the other hand, in the power transmission device composed of a pulley and a belt in general, if a power overload is exceeded or the belt is loose, a smooth power transmission is followed, and a slip occurs between the pulley and the belt. Relatively good V-pulleys and V-belts also cannot rule out this phenomenon.
따라서, 동력전달장치를 구성하는 상기의 구동풀리 및 풀리와 벨트간에 슬립이 발생하여 동력전달효율이 저하되면 동력손실은 물론 상대운동부의 과도한 마찰열로 인해 부품의 조기마모 등의 문제가 따른다. 또한, 모터의 회전력이 제대로 변속장치로 전달되지 못함에 따라, 구동풀리와 풀리의 회전수가 서로 상이하게 되어 상기의 회전수를 입력치로 하는 각종 자동제어가 부정확하게 되는 문제가 있다.Therefore, when slip occurs between the drive pulley and the pulley and the belt constituting the power transmission device, and the power transmission efficiency is lowered, there is a problem of premature wear of parts due to excessive frictional heat as well as power loss. In addition, as the rotational force of the motor is not properly transmitted to the transmission, the rotational speeds of the driving pulley and the pulley are different from each other, so that various automatic control using the rotational speed as an input value is incorrect.
본 고안은 상기와 같은 종래의 문제점을 감안하여 안출한 것으로서, 본 고안의 목적은 모터와 변속장치간의 동력전달효율을 증대시킴으로써 동력손실을 방지함은 물론 자동제어의 정확도를 향상시킨 세탁기의 동력전달장치를 제공하는데 있다.The present invention is conceived in view of the conventional problems as described above, the object of the present invention is to increase the power transmission efficiency between the motor and the transmission device to prevent power loss, as well as to improve the power transmission of the washing machine to improve the accuracy of automatic control To provide a device.
이러한 본 고안은, 모터와 변속장치에 장착된 각각의 풀리 외주면에 중심축 방향으로 일정간격의 홈과 돌기를 형성하는 한편 풀리와의 접촉면이이와 상응하는 요철형상으로 된 벨트로 상기 두개의 풀리를 서로 연결함으로써, 풀리와 벨트간의 슬립을 완전히 배제하여 모터와 변속장치간의 동력전달효율을 증대시킴을 특징으로 한다.The present invention provides grooves and protrusions at regular intervals in the direction of the center axis on the outer circumferential surfaces of each pulley mounted on the motor and the transmission, while the two pulleys are formed by a belt having a concave-convex shape corresponding to the pulley. By connecting each other, the slip between the pulley and the belt is completely excluded, thereby increasing the power transmission efficiency between the motor and the transmission.
이하, 본 고안의 세탁기의 동력전달장치의 실시예를 첨부도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, an embodiment of a power transmission device of a washing machine of the present invention will be described in detail.
제1도 (a)는 종래의 세탁기 동력전달장치의 정면도, (b)는 상기 (a)의 A-A선 단면도이다.1 (a) is a front view of a conventional washing machine power transmission device, (b) is a cross-sectional view taken along the line A-A of (a).
우선, 각각의 회전축에 구동풀리(13)와 풀리(15)가 장착된 모터(11)와 변속장치(12)를 소정위치에 설치하고 벨트(14)로 상기 두개의 풀리를 연결함으로써 전체 동력전달장치를 구성한다. 이로써, 모터(11)에서 발생한 동력이 벨트(14)를 통해 변속장치(12)로 전달되어 이와 연결된 탈수조(도시안됨)를 회전시킨다.First, by installing a motor 11 and a transmission device 12 equipped with a drive pulley 13 and a pulley 15 on each rotation shaft at a predetermined position, and connecting the two pulleys with a belt 14 to transmit the entire power. Configure the device. As a result, the power generated by the motor 11 is transmitted to the transmission device 12 through the belt 14 to rotate the dewatering tank (not shown) connected thereto.
이때, 세탁물의 과다 또는 기타 작동상의 문제로 상기의 변속장치(12) 및 풀리(13)에 과부하가 걸리는 경우, 모터(11)에 장착된 구동풀리(13)가 변속장치(12)에 장착된 풀리(15)를 제대로 회전시키지 못함에 따라, 구동풀리(13) 및 풀리(15)와 벨트(14)간에 슬립이 발생하여 상호 접촉면에 과도한 마찰열이 발생함은 물론 풀리(15)의 회전수가 구동풀리(13)의 회전수 보다 적게 된다. 따라서, 변속장치(12)에 연결된 탈수조(도시안됨)와 그 동력원인 모터(11)의 회전수가 서로 상이한 상황에서 문제의 회전수를 입력치로 하는 자동제어가 부정확하게 됨은 앞서 언급한 바와 같다.At this time, when the transmission 12 and the pulley 13 are overloaded due to excessive laundry or other operational problems, the drive pulley 13 mounted on the motor 11 is mounted on the transmission 12. As the pulley 15 is not properly rotated, slip occurs between the driving pulley 13 and the pulley 15 and the belt 14 to generate excessive frictional heat on the contact surface as well as to drive the rotational speed of the pulley 15. It becomes smaller than the rotation speed of the pulley 13. Therefore, as mentioned above, the automatic control using the rotational speed in question as an input value becomes inaccurate when the rotational speed of the dehydration tank (not shown) connected to the transmission 12 and the rotational speed of the motor 11 as its power source are different.
제2도 (a)는 본 고안의 세탁기 동력전달장치의 정면도, (b)는 상기 (a)의 B-B선 단면도이다. 각각의 회전축에 구동풀리(23)와 풀리(25)가 장착된 모터(21)와 변속장치(22)를 소정위치에 설치하고 벨트(24)로 상기 두개의 풀리를 연결한 기본적 구조는 종래와 동일하나 구동풀리(23) 및 풀리(25)와 벨트(24)의 형상은 본 고안의 특징적 요소로서 종래의 그것과는 크게 상이하다. 즉, 구동풀리(23)와 풀리(25)의 외주면에 중심축방향으로 일정간격의 홈(c)과 돌기(d)를 구비한 형상이다. 동시에, 구동풀리(23) 및 풀리(25)와 접촉하는 벨트(24)의 접촉면 역시 상기의 홈(c)과 돌기(d)에 상응하는 요철형상으로 한다. 또한, 돌기(d)의 중심축방향 양단부는 중앙부의 선단면(P)보다 다소 돌출되어 있다. 이는 벨트(24)가 상하로 이탈하는 것을 방지하기 위한 것으로서, 이탈방지벽(Q)의 높이는 가공에 장시간이 소요되거나 벨트(24)의 착탈이 어려운 문제가 없을 정도의 적정치로 한다.2 (a) is a front view of the washing machine power transmission device of the present invention, (b) is a cross-sectional view taken along line B-B of (a). The basic structure in which the motor 21 and the transmission 22 equipped with the driving pulley 23 and the pulley 25 are installed at predetermined positions on each rotation shaft and the two pulleys are connected with the belt 24 is conventional. The same, but the shape of the drive pulley 23 and pulley 25 and belt 24 is significantly different from the conventional one as a characteristic element of the present invention. That is, it is a shape provided with the groove | channel c and the protrusion d of constant space | interval in the center axial direction on the outer peripheral surfaces of the drive pulley 23 and the pulley 25. As shown in FIG. At the same time, the contact surface of the belt 24 in contact with the driving pulley 23 and the pulley 25 is also formed into an uneven shape corresponding to the groove c and the projection d. In addition, both ends of the central axial direction of the projection d slightly protrude from the distal end surface P of the central portion. This is to prevent the belt 24 from escaping up and down, and the height of the anti-separation wall Q is set to an appropriate value such that it does not take a long time to process or difficult to attach or detach the belt 24.
이로써, 모터(21)의 회전력을 변속장치(22)로 전달하는 과정에서 구동풀리(23) 및 풀리(25)와 벨트(24)에 형성된 각각의 홈(c)과 돌기(d)가 서로 맞물린 상태가 되어 구동풀리(23) 및 풀리(25)와 벨트(24)간의 슬립이 근본적으로 배제됨에 따라 앞서 언급한 슬립으로 인한 동력손실을 방지함은 물론, 구동풀리(23)와 풀리(25)의 회전수가 서로 일치함으로써 회전수를 입력치로 하는 자동제어의 정확도가 향상되는 특징이 있다. 아울러, 구동풀리(23)와 풀리(25)의 돌기(d) 양단에 형성된 이탈방지벽(Q)이 벨트(24)의 상하 이탈을 억제함으로써 앞서 확보한 동력전달 효율에 안정성이 추가된다.As a result, in the process of transmitting the rotational force of the motor 21 to the transmission 22, the grooves c and the protrusions d formed in the driving pulley 23 and the pulley 25 and the belt 24 are engaged with each other. As a state in which the slip between the drive pulley 23 and the pulley 25 and the belt 24 is essentially excluded, power loss due to the aforementioned slip is prevented, as well as the drive pulley 23 and the pulley 25. By matching the rotational speeds with each other, the accuracy of the automatic control using the rotational speed as an input value is improved. In addition, since the separation preventing wall Q formed at both ends of the protrusion d of the driving pulley 23 and the pulley 25 suppresses the vertical fall of the belt 24, stability is added to the power transmission efficiency secured above.
위와 같은 본 고안은 모터와 변속장치에 장착된 각각의 풀리 외주면에 중심축 방향으로 일정간격의 홈과 돌기를 형성하는 한편 풀리와의 접촉면이 이와 상응하는 요철형상으로 된 벨트로 상기 두개의 풀리를 서로 연결함으로써, 풀리와 벨트간의 슬립을 완전히 배제하여 세탁기의 모터와 변속장치간의 동력전달효율을 증대시킴으로써 동력손실을 방지하는 효과가 있는 한편 자동제어의 정확도를 향상시키는 장점도 있다.The present invention as described above forms grooves and protrusions at regular intervals in the direction of the center axis on the outer circumferential surfaces of each pulley mounted on the motor and the transmission, while contacting the pulleys with the belt having a corresponding uneven shape. By connecting each other, the slip between the pulley and the belt is completely eliminated, thereby increasing the power transmission efficiency between the motor and the transmission of the washing machine, thereby preventing power loss and improving the accuracy of the automatic control.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019940025709U KR0119426Y1 (en) | 1994-09-30 | 1994-09-30 | Device for conveying driving power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019940025709U KR0119426Y1 (en) | 1994-09-30 | 1994-09-30 | Device for conveying driving power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR960011212U KR960011212U (en) | 1996-04-15 |
| KR0119426Y1 true KR0119426Y1 (en) | 1998-08-17 |
Family
ID=19394645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019940025709U KR0119426Y1 (en) | 1994-09-30 | 1994-09-30 | Device for conveying driving power |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0119426Y1 (en) |
-
1994
- 1994-09-30 KR KR2019940025709U patent/KR0119426Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR960011212U (en) | 1996-04-15 |
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