KR900005511Y1 - Preventing device for back lash - Google Patents

Preventing device for back lash Download PDF

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Publication number
KR900005511Y1
KR900005511Y1 KR2019870013923U KR870013923U KR900005511Y1 KR 900005511 Y1 KR900005511 Y1 KR 900005511Y1 KR 2019870013923 U KR2019870013923 U KR 2019870013923U KR 870013923 U KR870013923 U KR 870013923U KR 900005511 Y1 KR900005511 Y1 KR 900005511Y1
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KR
South Korea
Prior art keywords
worm
shaft
backlash
worm wheel
bearing
Prior art date
Application number
KR2019870013923U
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Korean (ko)
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KR890004566U (en
Inventor
박기춘
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대우중공업 주식회사
이경훈
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Priority to KR2019870013923U priority Critical patent/KR900005511Y1/en
Publication of KR890004566U publication Critical patent/KR890004566U/en
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Publication of KR900005511Y1 publication Critical patent/KR900005511Y1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/54Arrangements or details not restricted to group B23Q5/02 or group B23Q5/22 respectively, e.g. control handles
    • B23Q5/56Preventing backlash

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)

Abstract

내용 없음.No content.

Description

웜기어의 백래쉬 조정장치Backlash Adjuster of Worm Gear

제1도는 백래쉬 조정장치가 없는 일반적인 윔기어.Figure 1 is a general wheel gear without backlash adjustment.

제2도는 종래의 백래쉬 조정장치.2 is a conventional backlash adjustment apparatus.

제3도는 본 고안의 백래쉬 조정장치.3 is a backlash adjustment device of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

11 : 키 12 : 판스프링11: key 12: leaf spring

13 : 걸림턱 16 : 베어링 캡13: engaging jaw 16: bearing cap

17 : 고정 보울트 18 : 칼라17: fixed bolt 18: collar

본 고안은 회전 테이블 및 각도 분할 장치등에 사용되는 웜기어의 백래쉬 조정장치에 관한 것으로, 특히 회전 테이블에 장치되는 윔기어의 백래쉬 조정장치이다.The present invention relates to a backlash adjusting device for a worm gear used in a rotating table and an angle dividing device, and more particularly, a backlash adjusting device for a wedge gear installed in a rotating table.

일반적으로 제1도와 같이 웜(1)과 웜휠(2)이 치합되어져 웜(1)의 희전력에 의해 웜휠(2)이 회전되는 일반적인 윔기어의 장치를 내장한 분할장치 및 회전 테이블은 기어 고유의 백래쉬 때문에 역회전시 그양만큼 어긋나 그 위치 정도가 정확하지 못했다.In general, as shown in FIG. 1, the worm 1 and the worm wheel 2 are engaged with each other so that a partitioning device and a turntable incorporating a device of a general wheel gear in which the worm wheel 2 is rotated by the rare power of the worm 1 are gear-specific. Because of the backlash of, the amount of shift was reversed by reverse rotation, but the position was not accurate.

그래서, 종래에는 제2도에서 보는 바와같이 반이 절단된 웜(3)의 축(4)에 또다른 반의 웜(5)을 가진 겹축(6)을 삽착하여 웜(3)(5)이 서로 밀착되게 하고, 겹축(6)의 외경에 테이퍼면을 가진 체결테(7)를 형성하며, 체결테(7)에는 보울트(8)에 의해 체결테(7)를 조여주는 고정테(9)를 설치하여서 된것으로 보울트(8)를 조여줌에 의해 고정테(9)가 체결테(7)를 조여주어 겹촉(6)을 축(4)에 아착 고정하므로서 백래쉬의 량을 제거하고자 했었다.Thus, in the related art, as shown in FIG. 2, the worms 3 and 5 are mutually inserted by inserting a double shaft 6 having another half of the worm 5 into the shaft 4 of the worm 3 cut in half. The fastening frame (7) having a tapered surface on the outer diameter of the double shaft (6) to be in close contact with the fastening frame (7) is fastened to the fastening frame (7) by the bolt (8). It was intended to remove the amount of backlash by fastening the bolt (8) to the fixed frame (9) by tightening the fastening frame (7) to fix the overlap (6) to the shaft (4).

그러나, 이같은 종래의 구성은 겹축(6)이 축(4)에 완전히 압착 고정되지 않기 때문에 큰힘의 토르크롤 웜휠(2)에 전달하지 못하였으며 웜휠(2)이 마모되었을시에는 일정한 시간마다 그 마모된 량 만큼 조정을 해야 하는 불편이 따랐다.However, such a conventional configuration has not been able to transmit to the large force torque roll worm wheel 2 because the overlap shaft 6 is not completely pressed and fixed to the shaft 4, and its wear every certain time when the worm wheel 2 is worn. The inconvenience of adjusting the amount was followed.

그리고, 웜휠(2)이 회전될시 웜(3)(5)에 그 충격이 직접 전달되어 웜휠(2)과 웜(3)(5)이 파손되거나 역구동시 치면에 손상을 주게되는 등의 문제점이 있었다.In addition, when the worm wheel 2 is rotated, the shock is directly transmitted to the worms 3 and 5 so that the worm wheel 2 and the worms 3 and 5 are damaged or damage to the tooth surface during reverse driving. There was this.

따라서, 본 고안은 이와같은 종래의 제반 문제점을 해소하고자 더블 웜 구조에 판스프링을 내장하여 웜휠의 양방향으로 웜이 닿고 있도록 하므로서 역회전시 백래쉬를 제거할수 있도륵 한것인바, 이를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Therefore, the present invention is to eliminate the backlash in the reverse rotation, so that the worm touches in both directions of the worm wheel by incorporating a leaf spring in the double worm structure in order to solve the conventional problems, such as in the accompanying drawings When described in detail as follows.

웜치수의 좌측 절반이 형성된 축(4)에 나머지 우측 절반이 형성되고 걸럼턱(10)을 가진 겹축(6)을 삽착한것에 있어서, 이들 사이게 키(11)와 판스프링(12)을 끼워 길이방향으로 이격되려는 탄성을 가지도록 삽착 고청하고 겹축(6)의 걸림턱(13)으로 니이들 롤러베어링(14)과 스러스트 볼베어링(15)을 삽착하고 그 외단으로 고정보울트(17)로 고정된 베어링 캡(16)을 설치하여 베어링 캡(16)에는 고정보울트(17)을 나삽하여 이를 조여주므로서 겹축(6)이 축(4)에 밀착 고청되도록 하고, 베어링 캠(16) 사이에는 칼라(18)를 삽착한 것이다.In the case where the other right half is formed on the shaft 4 on which the left half of the worm dimension is formed, and the overlap shaft 6 having the jaw 10 is inserted, the key 11 and the leaf spring 12 are sandwiched. Inserted and pushed so as to have elasticity to be spaced in the longitudinal direction, the needle roller bearing 14 and the thrust ball bearing 15 are inserted into the locking jaw 13 of the double shaft 6 and fixed to the high information bolt 17 at the outer end thereof. The bearing cap 16 is installed to screw the high information bolt 17 into the bearing cap 16 so as to tighten the overlap shaft 6 to the shaft 4. 18) is inserted.

이와같은 본 고안은 웜휠(2)이 마모될시 그 마모량 만큼 판스프링(12)이 겹측(6)을 항상 길이방향으로 밀어서 틈이 없도록 보상시켜주고 있기 때문에 웜휠(2)의 치면과 웜(3)(5)의 치면이 밀착되어 웜기어의 백래쉬를 항상 최소화 할수 있는 것이다.This invention devises the tooth surface and worm (3) of the worm wheel (2) because the worm wheel (2) compensates for the gap of the leaf spring 12 by pushing the lap side (6) in the longitudinal direction as much as the amount of wear when the worm wheel (2) is worn. The tooth surface of) (5) is in close contact so that the backlash of the worm gear can be minimized at all times.

즉, 판스프링(12)이 축(4)의 웜(3)과 겹축(6)의 사이에서 양방향으로 탄성을 가지고 밀고 있기 때문에 웜휠(2)이 웜(3)(5)에 밀착되어져 역회전시에도 백래쉬 없이 정확하게 맞물려 회전하게 된다.That is, since the leaf spring 12 pushes elastically in both directions between the worm 3 and the overlap shaft 6 of the shaft 4, the worm wheel 2 is in close contact with the worm 3, 5, and reverse rotation. It rotates precisely without backlash even during poetry.

또한, 필요이상의 큰 힘이 작용하여 웜(3)(5)과 웜휠(2)이 마모가 일어나게 되더라도 판스프링(12)의 탄성변형과 키(11)에 의해 웜(3)(5)과 웜휠(2)의 마찰력을 줄여주게 되므로 마모를 최소화하게된다.In addition, even if a large force greater than necessary causes the worms 3 and 5 and the worm wheel 2 to wear, the worm 3 and 5 and the worm wheel are caused by the elastic deformation of the leaf spring 12 and the key 11. The frictional force of (2) is reduced, so the wear is minimized.

그리고, 웜휠(2)에 연결된 테이블이 외부로 부터 충격을 받아 역구동 회전할시에도 판 스프링(12)이 변형되어 이를 흡수하게되는 것이며, 판 스프링(12)이 오랜 사용으로 탄성력이 약해지면 칼라(18)의 두께릍 조절하여 조절보울트(17)를 더욱 조여주거나 풀어주므로서 베어링 캡(16)이 웜 축(4)과 겹축(6)의 간격을 조절할 수 있는 것이다.In addition, even when the table connected to the worm wheel 2 is shocked from the outside, the leaf spring 12 is deformed and absorbed even when it is rotated in reverse driving. By adjusting the thickness 릍 (18) to further tighten or loosen the adjustment bolt 17, the bearing cap 16 can adjust the distance between the worm shaft 4 and the overlap shaft (6).

따라서, 이와같이된 본 고안은 종래와 같이 마찰력만으로 웜휠을 회전시켰기 때문에 큰힘을 전달시키지 못하므로서 일정한 시간마다 백래쉬를 조정해야만 하고, 또한 웜에 충격이 직접 전달되어 웜휠과 웜이 파손되던 것에 비해 판스프링을 사용하므로서 백래쉬 제거가 지속적으로 되어져 제조정할 필요가 없게되고 키를 사용하므로 콘 토르크를 전달해도 파손되는 일이 없어질 뿐만 아니라, 역구동시에도 충격을 흡수하게 되는 장점이 있는 것이다.Therefore, the present invention, as described above, rotates the worm wheel with only friction as in the prior art, and therefore, does not transmit a large force, and therefore, backlash must be adjusted at a certain time, and the shock is directly transmitted to the worm, and the leaf spring is compared with the worm wheel and the worm being broken. By using the backlash is continuously eliminated, no need to manufacture, and because the key is used to deliver the cone torque is not broken, but also has the advantage of absorbing the shock during the reverse drive.

Claims (1)

웜치수의 좌측 절반이 형성된 축(4)에 나머지 우측 절반이 형성되고 걸럼턱(10)을 가진 겹축(6)을 삽착한것에 있어서, 이들 사이게 키(11)와 판스프링(12)을 끼워 길이방향으로 이격되려는 탄성을 가지도록 삽착 고정하고 겹축(6)의 걸림턱(13)으로 니이들 롤러베어링(14)과 스러스트 볼베어링(15)을 삽착하고 그 외단으로 고정보울트(17)로 고정된 베어링 캡(16)을 설치하여 베어링 캡(16)사이에는 칼라(18)를 삽착한 것을 특징으로 한 웜기어 백래쉬 조정장치.In the case where the other right half is formed on the shaft 4 on which the left half of the worm dimension is formed, and the overlap shaft 6 having the jaw 10 is inserted, the key 11 and the leaf spring 12 are sandwiched. Inserted and fixed to have elasticity to be spaced in the longitudinal direction, and the needle roller bearing 14 and the thrust ball bearing 15 is inserted into the locking jaw 13 of the double shaft 6 and fixed to the high information bolt 17 at the outer end thereof. Worm gear backlash adjustment device characterized in that the bearing cap (16) is installed to insert a collar (18) between the bearing caps (16).
KR2019870013923U 1987-08-20 1987-08-20 Preventing device for back lash KR900005511Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870013923U KR900005511Y1 (en) 1987-08-20 1987-08-20 Preventing device for back lash

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870013923U KR900005511Y1 (en) 1987-08-20 1987-08-20 Preventing device for back lash

Publications (2)

Publication Number Publication Date
KR890004566U KR890004566U (en) 1989-04-17
KR900005511Y1 true KR900005511Y1 (en) 1990-06-20

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KR2019870013923U KR900005511Y1 (en) 1987-08-20 1987-08-20 Preventing device for back lash

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KR890004566U (en) 1989-04-17

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